阅读说明：本技术 一种钢轨涡流探伤设备 (Eddy current flaw detection equipment for steel rail ) 是由 袁刚强 吴军 邓华 王可刚 刘勇 唐军 曾富 周雪清 蒋春阳 唐阳军 刘长青 于 2020-12-04 设计创作，主要内容包括：本发明公开了一种钢轨涡流探伤设备,包括机架、轨头踏面探伤起落架、轨头侧探伤起落架、轨头圆弧区探伤起落架、轨底侧探伤起落架和轨底探伤起落架,所述的轨头踏面探伤起落架上设置有能够与轨头踏面一侧对准的HT涡流探头,轨头侧探伤起落架上设置有能够与轨头一侧对准的H涡流探头,轨头圆弧区探伤起落架上设置有能够与圆弧区一侧对准的HC涡流探头,轨底侧探伤起落架上设置有能够与轨底一侧对准的FC涡流探头,轨底探伤起落架上设置有能够与轨底对准的F探头。本发明的有益效果是：本方案利用多个探伤支架驱动涡流探头分布在钢轨的轨头两侧、轨头踏面两侧、轨头圆弧区两侧、轨底侧面两侧和轨底下方,能够实现多方位全面探伤,提高探伤精度。(The invention discloses a steel rail eddy current inspection device which comprises a rack, a rail head tread inspection undercarriage, a rail head side inspection undercarriage, a rail head arc region inspection undercarriage, a rail bottom side inspection undercarriage and a rail bottom inspection undercarriage, wherein the rail head tread inspection undercarriage is provided with a HT eddy current probe capable of aligning with one side of a rail head tread, the rail head side inspection undercarriage is provided with an H eddy current probe capable of aligning with one side of a rail head, the rail head arc region inspection undercarriage is provided with an HC eddy current probe capable of aligning with one side of an arc region, the rail bottom side inspection undercarriage is provided with an FC eddy current probe capable of aligning with one side of a rail bottom, and the rail bottom inspection undercarriage is provided with an F probe capable of aligning with the rail bottom. The invention has the beneficial effects that: this scheme utilizes a plurality of support drive eddy current probe of detecting a flaw to distribute in the railhead both sides of rail, railhead tread both sides, railhead circular arc district both sides, railfoot side both sides and railfoot below, can realize diversified detecting a flaw comprehensively, improves the precision of detecting a flaw.)

1. A rail eddy current inspection equipment which characterized in that: comprises a frame (6), two railhead tread flaw detection undercarriage arranged on the frame (6), two railhead side flaw detection undercarriage arranged on the frame (6), two railhead arc area flaw detection undercarriage arranged on the frame (6), two railbase side flaw detection undercarriage arranged on the frame (6) and a railbase flaw detection undercarriage arranged on the frame (6), the rail head tread flaw detection undercarriage is provided with an HT eddy current probe (19) which can be aligned with one side of the rail head tread, the rail head side flaw detection undercarriage is provided with an H eddy current probe (29) which can be aligned with one side of the rail head, the rail head arc area flaw detection undercarriage is provided with an HC eddy current probe (39) which can be aligned with one side of the arc area, the rail bottom side flaw detection undercarriage is provided with an FC eddy current probe which can be aligned with one side of the rail bottom, and the rail bottom flaw detection undercarriage is provided with an F probe (516) which can be aligned with the rail bottom.

2. A rail eddy current flaw detection apparatus according to claim 1, characterized in that: the railhead tread flaw detection undercarriage comprises an HT mechanical arm (11), an HT horizontal shaft (14) arranged in the HT mechanical arm (11), an HT mounting seat (13) arranged on the HT horizontal shaft (14) in a sliding mode, an HT lifting shaft (112) arranged on the HT mounting seat (13), an HT probe mounting plate (15) arranged on the HT lifting shaft (112) in a sliding mode and an HT eddy current probe (19) arranged on the HT probe mounting plate (15) and aligned to the railhead tread, wherein a probe adjusting device (16) in transmission connection with the HT eddy current probe (19) is arranged on the HT probe mounting plate (15).

3. A rail eddy current flaw detection apparatus according to claim 2, characterized in that: probe adjusting device (16) including setting up regulation shell (161) on HT probe mounting panel (15), set up on HT probe mounting panel (15) and be located regulation seat (162) of adjusting shell (161) top and set up in adjusting shell (161) and pass regulation seat (162) adjusting threaded rod (163), adjusting threaded rod (163) on threaded connection have HT adjusting nut, HT vortex probe (19) be connected with HT adjusting nut.

4. A rail eddy current flaw detection apparatus according to claim 1, characterized in that: railhead side flaw detection undercarriage include H arm (21), set up H horizontal axis (24) in H arm (21), slip H mount pad (23) of setting on H horizontal axis (24), set up H lift axle (212) on H mount pad (23), slip H probe mounting panel (25) of setting on H lift axle (212) and set up on H probe mounting panel (25) and aim at H eddy current probe (29) of railhead side.

5. A rail eddy current flaw detection apparatus according to claim 4, characterized in that: the lower part of H probe mounting panel (25) be connected with H location support (219), H location support (219) go up to rotate and be provided with pivot horizontally H horizontal positioning wheel (221), H location support (219) go up to rotate and be provided with the vertical positioning wheel of H (220) of pivot, H horizontal positioning wheel (221) and H vertical positioning wheel (220) can be simultaneously with rail roll connection.

6. A rail eddy current flaw detection apparatus according to claim 1, characterized in that: the railhead arc area flaw detection undercarriage comprises an HC mechanical arm (31), an HC horizontal shaft (34) arranged in the HC mechanical arm (31), an HC mounting seat (33) arranged on the HC horizontal shaft (34) in a sliding mode, an HC lifting shaft (312) arranged on the HC mounting seat (33), an HC probe mounting plate connecting seat (3101) arranged on the HC lifting shaft (312) in a sliding mode, an HC sliding shaft (316) arranged in the HC mounting seat (33) in a sliding mode and connected with the HC probe mounting plate connecting seat (3101), an HC positioning support (319) arranged on the HC sliding shaft (316) and an HC probe mounting structure arranged on the HC positioning support (319).

7. A rail eddy current flaw detection apparatus according to claim 6, characterized in that: the HC positioning support (319) is rotatably provided with an HC horizontal positioning wheel (321) with a horizontal rotating shaft, the HC positioning support (319) is rotatably provided with an HC vertical positioning wheel (320) with a vertical rotating shaft, and the HC horizontal positioning wheel (321) and the HC vertical positioning wheel (320) can be simultaneously in rolling connection with the steel rail.

8. A rail eddy current flaw detection apparatus according to claim 1, characterized in that: the rail bottom side flaw detection undercarriage comprises an FC mechanical arm (41), an FC sliding shaft (43) arranged in the FC mechanical arm (41) along the horizontal direction, an FC base (44) arranged on the FC sliding shaft (43) in a sliding mode, an FC vertical shaft (47) arranged on the FC base (44) in a sliding mode along the vertical direction and an FC probe mounting seat (48) arranged at the top end of the FC vertical shaft (47) and used for mounting an FC eddy current probe.

9. A rail eddy current flaw detection apparatus according to claim 8, characterized in that: the bottom of FC vertical shaft (47) be connected with FC vertical shaft supporting seat (46), be provided with FC cylinder (45) between FC vertical shaft supporting seat (46) and FC base (44), the cylinder body and the FC vertical shaft supporting seat (46) of FC cylinder (45) are connected, the piston rod and the FC base (44) transmission of FC cylinder (45) are connected.

10. A rail eddy current flaw detection apparatus according to claim 1, characterized in that: the rail bottom flaw detection undercarriage comprises an F mechanical arm (51), an F horizontal sliding shaft (52) arranged in the F mechanical arm (51), an F sliding base (54) arranged on the F horizontal sliding shaft (52) in a sliding mode, an F vertical sliding shaft (541) arranged in the F sliding base (54) in a sliding mode along the vertical direction, an F base (553) arranged at the bottom of the F vertical sliding shaft (541), an F mounting plate (56) arranged on the F base (553), an F probe mounting seat (58) arranged on the F mounting plate (56) and an F probe (516) arranged on the F probe mounting seat (58), an F cylinder (510) in transmission connection with the F probe mounting seat (58) is arranged on the F base (553), and an F spring (515) is connected between the F base (553) and the F sliding base (54).

Technical Field

The invention relates to the technical field of eddy current flaw detection, in particular to steel rail eddy current flaw detection equipment.

Background

Eddy current flaw detection is a non-destructive inspection technique in which an eddy current is induced on the surface of a metal member by an ac electromagnetic coil. It is suitable for defect detection of conductive materials, including ferromagnetic and non-ferromagnetic metallic material members. Because of eddy current inspection, the coil and the component are not required to be in close contact during detection, and a coupling agent is not required to be filled between the coil and the component, so that the inspection automation is easy to realize. However, eddy current inspection is only suitable for conductive materials, and only detects defects on the surface or near-surface layer, which is inconvenient for members with complicated shapes. The detection depth and the detection sensitivity are also contradictory, and before detection, comprehensive consideration needs to be given according to the material, the surface state and the detection standard of the detected object. When the through type coil is adopted for detection, the specific position of the defect on the circumference can not be judged.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention aims to provide steel rail eddy current flaw detection equipment which is used for realizing omnibearing flaw detection of steel rails and improving the flaw detection precision and efficiency.

The invention is realized by the following technical scheme: the utility model provides a rail eddy current inspection equipment, includes frame, two railhead tread flaw detection undercarriage that set up in the frame, two railhead side flaw detection undercarriage that set up in the frame, two railhead circular arc district flaw detection undercarriage that set up in the frame, two railhead side flaw detection undercarriage that set up in the frame and the railhead undercarriage that detects a flaw that sets up in the frame, railhead tread flaw detection undercarriage on be provided with the HT eddy current probe that can aim at with railhead tread one side, be provided with the H eddy current probe that can aim at with railhead one side on the railhead side flaw detection undercarriage, be provided with the HC eddy current probe that can aim at with circular arc district one side on the railhead circular arc district flaw detection undercarriage, be provided with the FC eddy current probe that can aim at with railhead one side on the railhead side flaw detection undercarriage, be provided with the F probe that can aim at with the.

Further, in order to better realize the invention, the rail head tread flaw detection undercarriage comprises an HT mechanical arm, an HT horizontal shaft arranged in the HT mechanical arm, an HT mounting seat arranged on the HT horizontal shaft in a sliding manner, an HT lifting shaft arranged on the HT mounting seat, an HT probe mounting plate arranged on the HT lifting shaft in a sliding manner, and an HT eddy current probe arranged on the HT probe mounting plate and aligned with the rail head tread, wherein a probe adjusting device in transmission connection with the HT eddy current probe is arranged on the HT probe mounting plate.

Furthermore, in order to better realize the invention, the probe adjusting device comprises an adjusting shell arranged on the HT probe mounting plate, an adjusting seat arranged on the HT probe mounting plate and positioned above the adjusting shell, and an adjusting threaded rod arranged in the adjusting shell and penetrating through the adjusting seat, wherein an HT adjusting nut is connected to the adjusting threaded rod in a threaded manner, and the HT eddy current probe is connected with the HT adjusting nut.

Further, in order to better implement the invention, the rail head side flaw detection undercarriage comprises an H mechanical arm, an H horizontal shaft arranged in the H mechanical arm, an H mounting seat arranged on the H horizontal shaft in a sliding mode, an H lifting shaft arranged on the H mounting seat, an H probe mounting plate arranged on the H lifting shaft in a sliding mode and an H eddy current probe arranged on the H probe mounting plate and aligned with the rail head side.

Furthermore, in order to better realize the invention, an H positioning support is connected below the H probe mounting plate, an H horizontal positioning wheel with a horizontal rotating shaft is rotatably arranged on the H positioning support, an H vertical positioning wheel with a vertical rotating shaft is rotatably arranged on the H positioning support, and the H horizontal positioning wheel and the H vertical positioning wheel can be simultaneously in rolling connection with the steel rail.

Further, in order to better realize the invention, the railhead arc area flaw detection undercarriage comprises an HC mechanical arm, an HC horizontal shaft arranged in the HC mechanical arm, an HC mounting seat arranged on the HC horizontal shaft in a sliding mode, an HC lifting shaft arranged on the HC mounting seat, an HC probe mounting plate connecting seat arranged on the HC lifting shaft in a sliding mode, an HC sliding shaft arranged in the HC mounting seat in a sliding mode and connected with the HC probe mounting plate connecting seat, an HC positioning support arranged on the HC sliding shaft and an HC probe mounting structure arranged on the HC positioning support.

Furthermore, in order to better realize the invention, the HC positioning support is rotatably provided with an HC horizontal positioning wheel with a horizontal rotating shaft, the HC positioning support is rotatably provided with an HC vertical positioning wheel with a vertical rotating shaft, and the HC horizontal positioning wheel and the HC vertical positioning wheel can be simultaneously connected with the steel rail in a rolling way.

Further, in order to better implement the invention, the rail bottom side flaw detection undercarriage comprises an FC mechanical arm, an FC sliding shaft arranged in the FC mechanical arm in the horizontal direction, an FC base arranged on the FC sliding shaft in a sliding mode, an FC vertical shaft arranged on the FC base in a sliding mode in the vertical direction and an FC probe mounting seat arranged at the top end of the FC vertical shaft and used for mounting an FC eddy current probe.

Furthermore, in order to better realize the invention, the bottom end of the FC vertical shaft is connected with an FC vertical shaft supporting seat, an air cylinder is arranged between the FC vertical shaft supporting seat and the FC base, a cylinder body of the air cylinder is connected with the FC vertical shaft supporting seat, and a piston rod of the air cylinder is in transmission connection with the FC base.

Further, in order to better realize the invention, the rail bottom flaw detection undercarriage comprises an F mechanical arm, an F horizontal sliding shaft arranged in the F mechanical arm, an F sliding seat arranged on the F horizontal sliding shaft in a sliding manner, an F vertical sliding shaft arranged in the F sliding seat in a sliding manner along the vertical direction, an F base arranged at the bottom of the F vertical sliding shaft, an F mounting plate arranged on the F base, an F probe mounting seat arranged on the F mounting plate and an F probe arranged on the F probe mounting seat, wherein an F cylinder in transmission connection with the F probe mounting seat is arranged on the F base, and an F spring is connected between the F base and the F sliding seat.

The beneficial effect that this scheme obtained is:

this scheme utilizes a plurality of support drive eddy current probe of detecting a flaw to distribute in the railhead both sides of rail, railhead tread both sides, railhead circular arc district both sides, railfoot side both sides and railfoot below, can realize diversified detecting a flaw comprehensively, is favorable to improving the precision of detecting a flaw.

Drawings

FIG. 1 is a schematic structural diagram of the present embodiment;

FIG. 2 is a perspective view of a flaw detection undercarriage on the tread of a railhead;

FIG. 3 is a right side view of FIG. 2;

FIG. 4 is a front view of FIG. 2;

FIG. 5 is an enlarged view of FIG. 2 at A;

FIG. 6 is an enlarged view of FIG. 2 at B;

FIG. 7 is a perspective view of the railhead-side inspection landing gear;

FIG. 8 is a right side view of FIG. 7;

FIG. 9 is a front view of FIG. 7;

FIG. 10 is an enlarged view taken at A of FIG. 7;

FIG. 11 is an enlarged view of FIG. 9 at B;

FIG. 12 is a perspective view of the flaw detection undercarriage in the arc area of the railhead;

FIG. 13 is a right side view of FIG. 12;

FIG. 14 is a front view of FIG. 12;

FIG. 15 is an enlarged view taken at A of FIG. 12;

FIG. 16 is a perspective view of a flaw detection landing gear on the rail foot side;

FIG. 17 is an enlarged view at A of FIG. 16;

FIG. 18 is a perspective view of the present embodiment;

FIG. 19 is a schematic structural view of the present embodiment;

wherein the device comprises an 11-HT mechanical arm, a 12-HT external connecting plate, a 13-HT mounting seat, a 14-HT horizontal shaft, a 15-HT probe mounting plate, a 16-probe adjusting device, a 161-adjusting shell, a 162-adjusting seat, a 163-adjusting threaded rod, a 19-HT vortex probe, a 110-HT probe mounting plate driving structure, an 1101-HT probe mounting plate connecting seat, a 1102-HT adjusting plate, a 1103-HT linkage lug, an 1104-HT waist-shaped hole, a 1105-HT mounting plate locking screw, an 1106-HT mounting plate pressing plate, a 1107-HT adjusting nut, an 1108-HT adjusting screw, a 1109-HT adjusting lug, a 112-HT lifting shaft, a 1121-HT spring, a 113-HT lifter, a 115-HT horizontal driving structure, a 116-HT sliding shaft and a 117-HT sliding shaft mounting seat, 119-HT positioning support seats, 120-HT vertical positioning wheels, 121-HT horizontal positioning wheels and 122-HT lifting sleeves;

21-H mechanical arm, 22-H external connection plate, 23-H mounting seat, 24-H horizontal shaft, 25-H probe mounting plate, 29-H eddy current probe, 210-H probe mounting plate driving structure, 2101-H probe mounting plate connecting seat, 2102-H adjusting plate, 2103-H linkage lug, 2104-H waist-shaped hole, 2105-H mounting plate locking screw, 2106-H mounting plate pressing plate, 2107-H adjusting nut, 2108-H adjusting screw, 2109-H adjusting lug, 212-H lifting shaft, 2121-H spring, 213-H lifter, 215-H horizontal driving structure, 216-H sliding shaft, 217-H sliding shaft mounting seat, 219-H positioning support, 220-H vertical positioning wheel and 221-H horizontal positioning wheel, 222-H lifting sleeve;

the device comprises a 31-HC mechanical arm, a 32-HC external connection plate, a 33-HC mounting seat, a 34-HC horizontal shaft, a 35-HC probe mounting plate, a 351-HC probe mounting seat, a 352-HC adjusting sliding seat, a 353-HC probe adjusting screw rod, a 354-HC probe supporting block, a 355-HC probe mounting rod, a 356-HC probe adjusting roller, a 39-HC eddy current probe, a 310-HC probe mounting plate driving structure, a 3101-HC probe mounting plate connecting seat, a 312-HC lifting shaft, a 3121-HC spring, a 313-HC lifter, a 315-HC horizontal driving structure, a 316-HC sliding shaft, a 317-HC sliding shaft mounting seat, a 319-HC positioning support seat, a 320-HC vertical positioning wheel, a 321-HC horizontal positioning wheel and a 322-HC lifting sleeve;

41-FC mechanical arm, 42-FC external connection plate, 43-FC sliding shaft, 44-FC base, 45-FC cylinder, 46-FC vertical shaft supporting seat, 47-FC vertical shaft, 48-FC probe installation, 49-FC vertical roller, 410-FC horizontal roller, 411-FC horizontal driving structure, 412-FC spring, 4121-FC adjusting base, 4122-FC adjusting sliding seat, 4123-FC adjusting screw, 4124-FC adjusting rod, 4125-FC roller limiting seat and 4126-FC limiting roller;

51-F mechanical arm, 52-F horizontal sliding shaft, 53-H external connecting plate, 54-F sliding seat, 541-F vertical sliding shaft, 55-F roller frame, 551-F rail bottom roller, 552-F rail bottom side roller, 553-F base, 56-F mounting plate, 561-F connecting rod, 562-F connecting rod support, 57-F connecting plate, 58-F probe mounting seat, 59-F probe mounting plate, 591-F probe adjusting seat, 592-F wedge block, 593-F threaded adjusting rod, 510-F air cylinder, 511-F air cylinder support, 512-F air cylinder support limiting seat, 513-F connecting plate guide wheel, 515-F spring, 516-F probe, 6-frame and 7-rail.

Detailed Description

The present invention will be described in further detail with reference to examples, but the embodiments of the present invention are not limited thereto.

Example 1:

in the embodiment, as shown in fig. 1, a rail eddy current inspection apparatus comprises a frame 6, two railhead tread inspection undercarriage arranged on the frame 6, two railhead side inspection undercarriage arranged on the frame 6, two railhead arc area inspection undercarriage arranged on the frame 6, two railfoot side inspection undercarriage arranged on the frame 6 and railfoot inspection undercarriage arranged on the frame 6, the rail head tread flaw detection undercarriage is provided with an HT eddy current probe 19 which can be aligned with one side of the rail head tread, the rail head side flaw detection undercarriage is provided with an H eddy current probe 29 which can be aligned with one side of the rail head, the rail head arc area flaw detection undercarriage is provided with an HC eddy current probe 39 which can be aligned with one side of the arc area, the rail bottom side flaw detection undercarriage is provided with an FC eddy current probe which can be aligned with one side of the rail bottom, and the rail bottom flaw detection undercarriage is provided with an F probe 516 which can be aligned with the rail bottom.

When in flaw detection, a steel rail is moved into the rack 6, the driving structure on the flaw detection undercarriage on the rail head tread is utilized to drive the HT eddy current probe 19 to move to two sides of the rail head tread, the flaw detection undercarriage on the rail head side is utilized to drive the H eddy current probe 29 to move to two sides of the rail head side, the flaw detection undercarriage on the rail head arc area is utilized to drive the HC eddy current probe 39 to move to two sides of the rail head arc area, the flaw detection undercarriage on the rail bottom side is utilized to drive the FC eddy current probe to move to two sides of the rail bottom side, and the flaw detection undercarriage on the rail bottom is utilized to drive the F probe 516 to move to, when the HT eddy current probe 19, the H eddy current probe 29, the HC eddy current probe 39, the FC eddy current probe and the F probe 516 are moved in place, the probes are opened, the steel rail is continuously driven to move, and in the moving process of the steel rail, the probe detects the flaw of the steel rail until the tail part of the steel rail leaves the last probe.

In this embodiment, a rail 7 is provided below the frame 6, and the frame 6 is slidably provided on the rail 7, so that the relative position between the frame 6 and the rail 7 can be adjusted. The track 7 can be provided with a limiting structure, the limiting structure is used for limiting the limit moving position of the rack 6, and the rack 6 is prevented from derailing.

Example 2:

as shown in fig. 2, 3 and 4, in the embodiment, on the basis of the above embodiment, the undercarriage for rail head tread flaw detection includes an HT robot 11, an HT horizontal shaft 14 disposed in the HT robot 11, an HT mount 13 slidably disposed on the HT horizontal shaft 14, an HT elevating shaft 112 disposed on the HT mount 13, an HT probe mounting plate 15 slidably disposed on the HT elevating shaft 112, and an HT eddy current probe 19 disposed on the HT probe mounting plate 15 and aligned with the rail head tread, wherein the HT probe mounting plate 15 is provided with a probe adjusting device 16 in transmission connection with the HT eddy current probe 19.

The HT mechanical arm 11 is fixedly arranged on the rack, and the position of the HT eddy current probe 19 is adjusted through the relative sliding of the HT horizontal shaft 14 and the HT mounting seat 13 and the relative sliding of the HT lifting shaft 112 and the HT probe mounting plate 15. When the steel rail needs to be detected, the steel rail to be detected is transported into the rack, the HT eddy current probe 19 is aligned to the rail head tread of the steel rail by controlling the movement of the HT probe mounting plate 15, the rail head tread can be detected by the HT eddy current probe 19, and the HT eddy current probe 19 and the steel rail move relatively along the length direction of the steel rail in the detection process. The probe adjusting device 16 can be used for accurately adjusting the relative position of the HT eddy current probe 19 and the steel rail, so that the HT eddy current probe 19 and the steel rail maintain the required position accuracy, and the detection accuracy is improved. After the tail end of the rail passes under the HT eddy current probe 19, the HT eddy current probe 19 is controlled to return to the original position.

The two sides of the HT mechanical arm 11 are provided with HT external connection plates 12, the HT external connection plates 12 are provided with HT horizontal driving structures 115 for driving the HT installation bases 13 to move along the HT horizontal shafts 14, in this embodiment, the HT horizontal driving structures 115 may adopt a lift, the lift is used as a power source for controlling the HT horizontal shafts 14 and the HT installation bases 13 to slide relatively, so as to achieve the purpose of coarse adjustment, the HT horizontal driving structures 115 may be provided with cylinders in transmission connection with the HT installation bases 13, and after the distance between the HT eddy current probe 19 and the steel rail reaches a certain range by adjusting the positions of the HT installation bases 13, the cylinders are used to push or pull the HT installation bases 13, so as to achieve the purpose of precise adjustment.

Example 3:

on the basis of the above embodiment, in the present embodiment, the probe adjustment device 16 includes an adjustment housing 161 disposed on the HT probe mounting plate 15, an adjustment seat 162 disposed on the HT probe mounting plate 15 and above the adjustment housing 161, and an adjustment threaded rod 163 disposed in the adjustment housing 161 and passing through the adjustment seat 162, the adjustment threaded rod 163 is threadedly connected with an HT adjustment nut, and the HT eddy current probe 19 is connected with the HT adjustment nut.

Utilize the removal of adjusting seat 162 restriction adjusting threaded rod 163, through rotating adjusting threaded rod 163, can drive HT adjusting nut and remove along adjusting threaded rod 163's length direction to utilize HT adjusting nut to drive HT vortex probe 19 global movement, carry out the fine tuning to HT vortex probe 19's position before this convenience detects, guarantee the relative position precision of HT vortex probe 19 and rail in the testing process. The adjusting shell 161 can isolate and protect the internal structure, and prevent impurities from falling onto the adjusting threaded rod 163 or the HT adjusting nut to aggravate wear or cause seizure.

Example 4:

on the basis of the above embodiments, in this embodiment, an HT positioning support 119 is connected to the lower portion of the HT probe mounting plate 15, an HT horizontal positioning wheel 121 with a horizontal rotating shaft is rotatably disposed on the HT positioning support 119, an HT vertical positioning wheel 120 with a vertical rotating shaft is rotatably disposed on the HT positioning support 119, and the HT horizontal positioning wheel 121 and the HT vertical positioning wheel 120 can be simultaneously connected with a steel rail in a rolling manner.

When the HT probe mounting plate 15 is controlled to drive the HT eddy current probe 19 to move, the HT horizontal positioning wheel 121 is in contact with the upper surface of the steel rail, the HT vertical positioning wheel 120 is in contact with the side surface of the rail head part of the steel rail, so that the effect of limiting the HT eddy current probe 19 is achieved, the relative position accuracy of the HT eddy current probe 19 and the steel rail can be effectively improved, the relative position accuracy of the HT eddy current probe 19 and the steel rail can be kept when the HT eddy current probe 19 and the steel rail move relatively, and the detection accuracy is prevented from being influenced due to the change of the relative position of the HT eddy current probe 19 and the steel rail.

Example 5:

on the basis of the above embodiments, in this embodiment, the HT mounting seat 13 is provided with an HT sliding shaft 116 sliding along the vertical direction, and an HT sliding shaft mounting seat 117 connected to the HT probe mounting plate 15 is connected below the HT sliding shaft 116.

By connecting the HT probe mounting plate 15 and the HT slide shaft 116 to each other, the HT slide shaft mounting seat 117 can support the bottom of the HT probe mounting plate 15, thereby improving the positional accuracy and stability of the HT probe mounting plate 15. By slidably coupling the HT slide shaft 116 and the HT mount 13, the movement of the HT probe mounting plate 15 can be guided to be limited when adjusting the height position of the HT probe mounting plate 15, and the movement accuracy of the HT probe mounting plate 15 and the movement accuracy of the HT eddy current probe 19 can be improved.

The HT sliding shafts 116 can be provided with two, and are symmetrically distributed on two sides of the HT lifting shaft 112.

Example 6:

on the basis of the above embodiments, in this embodiment, the HT lifting shaft 112 is slidably provided with an HT lifter 113, the HT lifting shaft 113 is connected to an HT lifting sleeve 122 sleeved on the HT lifting shaft 112 in a transmission manner, and the HT probe mounting plate 15 is connected to the HT lifting sleeve 122. The HT lifter 113 is used as a power source for the up-and-down movement of the HT probe mounting plate 15, and the HT lifter 113 drives the HT probe mounting plate 15 to move up and down relative to the HT lifting shaft 112, so that the overall height of the HT probe mounting plate 15 can be adjusted according to the steel rails of different rail types.

Example 7:

as shown in fig. 5 and 6, in the present embodiment, on the basis of the above-mentioned embodiment, the HT probe mounting plate 15 is rotatably disposed on the HT slide shaft mounting seat 117. Therefore, the angle deviation between the HT eddy current probe 19 and the rail head tread can be adjusted by rotating the HT probe mounting plate 15, the position accuracy between the HT eddy current probe 19 and the steel rail can be improved, or the angle deviation between the HT eddy current probe 19 and the steel rail can be adjusted according to the requirement in actual detection.

In this embodiment, the HT lifting sleeve 122 is provided with a HT probe mounting plate driving structure 110 for driving the HT probe mounting plate 15 to rotate, the HT probe mounting plate driving structure 110 includes a HT probe mounting plate connecting seat 1101 disposed on the HT lifting sleeve 122, a HT adjusting plate 1102 disposed on the HT probe mounting plate connecting seat 1101, a HT adjusting protrusion 1109 disposed on the HT adjusting plate 1102, and two HT linkage protrusions 1103 disposed on the HT probe mounting plate 15, the two HT linkage protrusions 1103 are respectively located on two sides of the HT adjusting protrusion 1109, and a HT adjusting screw 1108 penetrating through the HT linkage protrusions 1103 and the HT adjusting protrusion 1109 is disposed between the two HT linkage protrusions 1103.

A groove is arranged in the HT adjusting bump 1109, and an HT adjusting nut 1107 which is in threaded connection with the HT adjusting screw 1108 is arranged in the groove.

The HT adjusting nut 1107 is rotated, the HT adjusting nut 1107 is limited in the groove, so that the HT adjusting screw 1108 can be controlled to move left and right, the HT adjusting screw 1108 drives the HT probe mounting plate 15 to rotate through the HT linkage bump 1103, and the purpose of adjusting the angular deviation between the HT eddy current probe 19 and the railhead tread is achieved. In this embodiment, two ends of the HT adjusting screw 1108 may be provided with anti-dropping stoppers to prevent the HT adjusting screw 1108 from being separated from the HT linkage bump 1103.

A long hole or an open slot through which the HT adjusting screw 1108 can pass can be formed in the HT adjusting protrusion 1109, so as to leave a space for the HT adjusting screw 1108 to deflect.

The HT probe mounting plate connecting seat 1101 is provided with a through hole for the HT sliding shaft 116 to pass through, so that the HT probe mounting plate connecting seat 1101 can be used for limiting and guiding the upper part of the HT sliding shaft 116, the rigidity and stability of the upper part of the HT sliding shaft 116 are enhanced, and the influence on the moving precision of the lower part due to the cantilever structure formed on the upper part of the HT sliding shaft 116 is avoided.

In this embodiment, the HT probe mounting plate 15 is provided with an HT kidney-shaped hole 1104 located below the HT linkage protrusion 1103, the HT adjusting plate 1102 is provided with an HT mounting plate locking screw 1105 passing through the HT kidney-shaped hole 1104 and threadedly connected to the HT adjusting plate 1102, and an HT mounting plate pressing plate 1106 is provided between the HT mounting plate locking screw 1105 and the HT probe mounting plate 15. The HT waist-shaped hole 1104 provides a space for the HT mounting plate locking screw 1105 to move, and after the HT probe mounting plate 15 is adjusted to a position, the HT mounting plate locking screw 1105 is locked, so that the HT mounting plate pressing plate 1106 is pressed on the HT probe mounting plate 15 by the HT mounting plate locking screw 1105, and the HT probe mounting plate 15 is prevented from moving again. The angle scale can be arranged above the HT waist-shaped hole 1104 in the embodiment, so that the HT waist-shaped hole can be accurately adjusted.

In this embodiment, the HT lifting shaft 112 is sleeved with an HT spring 1121 between the HT mounting base 13 and the HT lifting sleeve 122. When the HT probe mounting plate 15 is controlled to move up and down, the HT spring 1121 can be used for buffering, and when the HT vertical positioning wheel 120 and the HT horizontal positioning wheel 121 are respectively in contact with the steel rail, the HT vertical positioning wheel and the HT horizontal positioning wheel can perform a vibration damping function, so that the impact on the HT eddy current probe 19 is reduced.

Example 7:

as shown in fig. 7, 8 and 9, in the present embodiment, the rail head side flaw detection undercarriage includes an H robot arm 21, an H horizontal shaft 24 disposed in the H robot arm 21, an H mount 23 slidably disposed on the H horizontal shaft 24, an H lift shaft 212 disposed on the H mount 23, an H probe mounting plate 25 slidably disposed on the H lift shaft 212, and an H eddy current probe 29 disposed on the H probe mounting plate 25 and aligned with the rail head side, and the H probe mounting plate 25 is provided with a probe adjusting device 26 in transmission connection with the H eddy current probe 29.

The H-arm 21 is fixedly mounted on the frame, and the position of the H-eddy current probe 29 is adjusted by relative sliding between the H-horizontal shaft 24 and the H-mount 23 and relative sliding between the H-elevation shaft 212 and the H-probe mounting plate 25. When the steel rail needs to be detected, the steel rail to be detected is transported to a specific position in the rack, the H eddy current probe 29 can be aligned to the rail head side of the steel rail at the moment, the distance between the H eddy current probe 29 and the steel rail is adjusted to a detectable range, and the rail head side can be detected by the H eddy current probe 29 at the moment. During the inspection, the H-eddy current probe 29 and the rail are moved relative to each other along the longitudinal direction of the rail. The probe adjusting device 26 can accurately adjust the relative position of the H-eddy current probe 29 and the steel rail, so that the H-eddy current probe 29 and the steel rail maintain the required position accuracy, and the detection accuracy is improved. After the tail end of the steel rail passes through the H eddy current probe 29, the H eddy current probe 29 is controlled to return to the original position.

The H mechanical arm 21 is provided with H external connection plates 22 at two sides, and the H external connection plates 22 are provided with H horizontal driving structures 215 for driving the H mounting bases 23 to move along the H horizontal shaft 24, in this embodiment, the H horizontal driving structures 215 may be elevators. The H horizontal driving structure 215 is provided with an air cylinder in transmission connection with the H mounting seat 23, and the distance between the H eddy current probe 29 and the steel rail can be adjusted by pushing or pulling the H mounting seat 23 through the air cylinder, so that the distance between the H eddy current probe 29 and the steel rail meets the detection requirement. The elevator is mainly used for controlling the approximate position of the H eddy current probe 29 and adjusting the horizontal distance of the H eddy current probe 29 according to the steel rails with different rail types.

Example 8:

on the basis of the above embodiment, in this embodiment, an H positioning support 219 is connected to the lower portion of the H probe mounting plate 25, an H horizontal positioning wheel 221 with a horizontal rotating shaft is rotatably arranged on the H positioning support 219, an H vertical positioning wheel 220 with a vertical rotating shaft is rotatably arranged on the H positioning support 219, and the H horizontal positioning wheel 221 and the H vertical positioning wheel 220 can be simultaneously connected with a steel rail in a rolling manner.

When the H probe mounting plate 25 is controlled to drive the H eddy current probe 29 to move, the H horizontal positioning wheel 221 is in contact with the upper surface of the steel rail, the H vertical positioning wheel 220 is in contact with the side surface of the rail head part of the steel rail, and therefore the effect of limiting the H eddy current probe 29 is achieved, the relative position accuracy of the H eddy current probe 29 and the steel rail can be effectively improved, the relative position accuracy of the H eddy current probe 29 and the steel rail can be kept when the H eddy current probe 29 and the steel rail move relatively, and the detection accuracy is prevented from being influenced due to the change of the relative position of the H eddy current probe 29 and the steel rail.

Example 9:

on the basis of the above embodiments, in this embodiment, the H-slide shaft 216 is slidably disposed on the H-mount 23 along the vertical direction, and the H-slide shaft mount 217 connected to the H-probe mount plate 25 is connected below the H-slide shaft 216.

By connecting the H-slide shaft mount 217 to the H-probe mount plate 25 and the H-slide shaft 216, the bottom of the H-probe mount plate 25 can be supported, and the position accuracy and stability of the H-probe mount plate 25 can be improved. By the sliding connection between the H slide shaft 216 and the H mount 23, the movement of the H probe mount plate 25 can be restricted by guiding when the height position of the H probe mount plate 25 is adjusted, and the movement accuracy of the H probe mount plate 25 and the movement accuracy of the H eddy current probe 29 can be improved.

The number of the H sliding shafts 216 can be two, and the two H sliding shafts are symmetrically distributed on two sides of the H lifting shaft 212.

Example 10:

on the basis of the above embodiments, in this embodiment, the H lift 213 is slidably disposed on the H lift shaft 212, the H lift 213 is connected to an H lift sleeve 222 sleeved on the H lift shaft 212 in a transmission manner, and the H probe mounting plate 25 is connected to the H lift sleeve 222. The H-probe mounting plate 25 is thereby driven to move up and down by the up-and-down movement of the H lifter 213 with respect to the H lifting shaft 212. The H lifter 213 is mainly used to control the approximate position of the H-eddy current probe 29 and adjust the vertical distance of the H-eddy current probe 29 according to the rail of different rail types.

Example 11:

as shown in fig. 10 and 11, in the present embodiment, in addition to the above-described embodiments, the H probe mounting plate 25 is rotatably provided on the H slide shaft mounting base 217. Therefore, the angle deviation between the H eddy current probe 29 and the rail head side can be adjusted by rotating the H probe mounting plate 25, the position accuracy between the H eddy current probe 29 and the steel rail can be improved, or the angle deviation between the H eddy current probe 29 and the steel rail can be adjusted according to the requirement in actual detection.

In this embodiment, H lift sleeve 222 on set up and be used for driving H probe mounting panel 25 to rotate pivoted H probe mounting panel drive structure 210, H probe mounting panel drive structure 210 including setting up H probe mounting panel connecting seat 2101 on H lift sleeve 222, set up H regulating plate 2102 on H probe mounting panel connecting seat 2101, set up H regulating lug 2109 on H regulating plate 2102, two H linkage lugs 2103 that set up on H probe mounting panel 25, two H linkage lugs 2103 are located the both sides of H regulating lug 2109 respectively, be provided with the H adjusting screw 2108 who runs through H linkage lug 2103 and H regulating lug 2109 between two H linkage lugs 2103.

A groove is arranged in the H adjusting lug 2109, and an H adjusting nut 2107 in threaded connection with the H adjusting screw 2108 is arranged in the groove.

The H adjusting nut 2107 is rotated, the H adjusting nut 2107 is limited in the groove, so that the H adjusting screw 2108 can be controlled to move left and right, the H adjusting screw 2108 drives the H probe mounting plate 25 to rotate through the H linkage bump 2103, and the purpose of adjusting the angle deviation between the H eddy current probe 29 and the railhead side is achieved. In this embodiment, the two ends of the H adjusting screw 2108 may be provided with anti-dropping stoppers to prevent the H adjusting screw 2108 from being separated from the H linkage bump 2103.

The H-adjusting projection 2109 can be provided with a long hole or an open slot through which the H-adjusting screw 2108 can pass, so as to leave a space for the deflection of the H-adjusting screw 2108.

The H probe mounting plate connecting base 2101 is provided with a through hole for the H sliding shaft 216 to pass through, the H probe mounting plate connecting base 2101 can be used for limiting and guiding the upper part of the H sliding shaft 216, the rigidity and stability of the upper part of the H sliding shaft 216 are enhanced, and the problem that the upper part of the H sliding shaft 216 forms a cantilever structure to influence the moving precision of the lower part is avoided.

In this embodiment, the H probe mounting plate 25 is provided with an H-shaped hole 2104 located below the H linkage bump 2103, the H adjusting plate 2102 is provided with an H mounting plate locking screw 2105 passing through the H-shaped hole 2104 and in threaded connection with the H adjusting plate 2102, and an H mounting plate pressing plate 2106 is arranged between the H mounting plate locking screw 2105 and the H probe mounting plate 25. H kidney-shaped hole 2104 provides the space for the removal of H mounting panel locking screw 2105, after H probe mounting panel 25 adjusts to a position, locks H mounting panel locking screw 2105, makes H mounting panel locking screw 2105 compress tightly H mounting panel clamp plate 2106 on H probe mounting panel 25 to this prevents H probe mounting panel 25 from taking place the removal again. The H-shaped hole 2104 described in this embodiment can be provided with an angle scale thereon to facilitate accurate adjustment.

In this embodiment, the H-spring 2121 is sleeved on the H-lifting shaft 212 and located between the H-mounting seat 23 and the H-lifting sleeve 222. When the H probe mounting plate 25 is controlled to move up and down, the H spring 2121 can be used for playing a role of buffering, and when the H vertical positioning wheel 220 and the H horizontal positioning wheel 221 are respectively contacted with the steel rail, a role of vibration reduction can be played, so that the impact on the H eddy current probe 29 is reduced.

Example 12:

as shown in fig. 12, 13, and 14, in the present embodiment, the railhead circular arc flaw detection undercarriage includes an HC robot arm 31, an HC horizontal shaft 34 provided in the HC robot arm 31, an HC mount 33 slidably provided on the HC horizontal shaft 34, an HC lift shaft 312 provided on the HC mount 33, an HC probe mount plate attachment base 3101 slidably provided on the HC lift shaft 312, an HC slide shaft 316 slidably provided in the HC mount 33 and connected to the HC probe mount plate attachment base 3101, an HC positioning support 319 provided on the HC slide shaft 316, and an HC probe attachment structure provided on the HC positioning support 319.

The HC mechanical arm 31 is fixedly mounted on the frame, and the position of the HC eddy current probe 39 is adjusted by the relative sliding movement of the HC horizontal shaft 34 and the HC mount 33, and the HC positioning support 319. When the steel rail needs to be detected, the steel rail to be detected is transported into the rack, the HC eddy current probe 39 is aligned with the railhead arc area of the steel rail by controlling the movement of the HT probe mounting plate 15, the railhead arc area can be detected by using the HC eddy current probe 39, and the HC eddy current probe 39 and the steel rail move relatively along the length direction of the steel rail in the detection process. The probe adjusting device 36 can accurately adjust the relative position of the HC eddy current probe 39 and the steel rail, so that the HC eddy current probe 39 and the steel rail maintain the required position accuracy, and the detection accuracy is improved. After the tail end of the rail passes through the HC eddy current probe 39, the HC eddy current probe 39 is controlled to return to the original position.

The two sides of the HC mechanical arm 31 are provided with HC external connection plates 32, the HC external connection plate 22 is provided with a HC horizontal driving structure 315 for driving the HC mounting seat 23 to move along the HC horizontal shaft 24, in this embodiment, the HC horizontal driving structure 315 can adopt a lifter, the lifter is used as a power source for controlling the relative sliding between the HC horizontal shaft 24 and the HC mounting seat 23, so as to achieve the purpose of coarse adjustment, the HC horizontal driving structure 315 can be provided with an air cylinder in transmission connection with the HC mounting seat 23, and after the distance between the HC eddy current probe 39 and the steel rail reaches a certain range by adjusting the position of the HC mounting seat 23, the air cylinder is used for pushing or pulling the HC mounting seat 23, so as to achieve the purpose of precise adjustment.

By the sliding connection between the HC slide shaft 316 and the HC mount 33, when the height position of the HC positioning holder 319 is adjusted, the movement of the HC positioning holder 319 can be restricted by guiding, and the movement accuracy of the HC positioning holder 319 and the movement accuracy of the HC eddy current probe can be improved.

The HC slide shaft 316 can be provided with two, and is symmetrically distributed on two sides of the HC lift shaft 312.

Example 13:

in addition to the above embodiments, in the present embodiment, the HC lift 313 is slidably disposed on the HC lift shaft 312, the HC lift sleeve 322 fitted around the HC lift shaft 312 is connected to the HC lift 313 in a transmission manner, and the HC probe mounting plate 35 is connected to the HC lift sleeve 322. The HC probe mounting plate 35 is thereby driven to move up and down by the up-and-down movement of the HC lifter 313 relative to the HC lifter shaft 312. The HC lifting sleeve 322 can increase the contact area between the HC lifting shaft 312 and the sliding member, which is beneficial to dispersing the pressure applied to the HC lifting shaft 312, thereby reducing the abrasion and avoiding the HC lifting shaft 312 from bending and deforming due to the pressure applied to the HC lifting shaft 313.

Example 14:

as shown in fig. 15, in the present embodiment, on the basis of the above-described embodiment, the HC probe mounting structure includes the HC probe mounting seat 351 provided on the HC positioning support 319.

The HC probe mounting seat 351 is used as a mounting base of the HC probe, so that the stability of the HC probe is ensured.

In this embodiment, an HC adjusting slide 352 is slidably disposed below the HC probe mounting seat 351, and the HC probe is mounted on the HC adjusting slide 352, so that the position of the HC probe can be adjusted by sliding the HC adjusting slide 352.

In this embodiment, the HC probe mounting seat 351 is rotatably provided with an HC probe adjusting screw 353 in transmission connection with the HC adjusting slide 352. Therefore, the HC adjusting sliding seat 352 is driven to move relative to the HC probe mounting seat 351 by rotating the HC probe adjusting screw 353, and the HC probe adjusting screw 353 and the HC probe mounting seat 351 can be provided with a limiting structure for limiting the movement of the HC probe adjusting screw 353, so that the HC probe adjusting screw 353 and the HC probe mounting seat 351 can only rotate relatively, and the movement precision of the HC adjusting sliding seat 352 is guaranteed.

In this embodiment, an HC probe mounting rod 355 is arranged on the HC probe mounting seat 351, an HC probe adjusting roller 356 capable of being in rolling connection with a steel rail is rotatably arranged on the HC probe mounting rod 355, an HC probe supporting block 354 in clearance fit with the HC probe mounting rod 355 through a through hole is arranged above the HC probe mounting seat 351, and a groove for placing the HC probe adjusting roller 356 is arranged on the HC probe supporting block 354. During detection, the HC probe adjusting roller 356 is in contact with the steel rail, so that the distance between the HC probe and the steel rail can be controlled, and collision between the HC probe and the steel rail in the flaw detection process is avoided.

Example 15:

in addition to the above embodiments, in the present embodiment, the HC lifting shaft 312 is sleeved with the HC spring 3121 between the HC mounting seat 33 and the HC lifting sleeve 322.

In this embodiment, the HC lifting shaft 312 is sleeved with an HC spring 3121 between the HC mounting seat 33 and the HC lifting sleeve 322. When the HC probe mounting plate 35 is controlled to move up and down, the HC spring 3121 can be used for buffering, and when the HC vertical positioning wheel 320 and the HC horizontal positioning wheel 321 are respectively contacted with the steel rail, the effect of vibration reduction can be achieved, so that the impact on the HC eddy current probe is reduced.

Example 16:

as shown in fig. 16, in the present embodiment, the flaw detection undercarriage on the rail bottom side includes an FC robot 41, an FC slide shaft 43 provided in the FC robot 41 in the horizontal direction, an FC base 44 provided slidably on the FC slide shaft 43, an FC vertical shaft 47 provided slidably in the FC base 44 in the vertical direction, and an FC probe mounting seat 48 provided at the tip of the FC vertical shaft 47 and used for mounting an FC eddy current probe capable of being aligned with the side surface of the rail bottom.

During detection, the FC eddy current probe is driven to move to a specified position by relative sliding of the FC base 44 and the FC sliding shaft 43 and relative sliding of the FC vertical shaft 47 and the FC base 44, the steel rail is controlled to move into the rack, and at the moment, the FC eddy current probe can be aligned to the side surface of the rail bottom, so that detection can be started.

The FC robot 41 is provided with FC external plates 42 on both sides, and the FC external plates 42 are provided with FC horizontal driving mechanisms 411 for driving the FC base 443 to move along the FC sliding shafts 43, in this embodiment, the horizontal driving mechanism 115 may be a lifter. The lifter is used as a power source for relative sliding of the FC base 44 and the FC sliding shaft 43, the relative position of the FC eddy current probe and the horizontal direction of the steel rail can be roughly adjusted, after the steel rail moves in place, the FC eddy current probe is pushed by the air cylinder so as to be accurately adjusted, the distance between the FC eddy current probe and the steel rail meets the flaw detection requirement, and the other lifter can also be used as a power source for relative sliding of the FC vertical shaft 47 and the FC base 44, so that the relative position of the FC eddy current probe and the vertical direction of the steel rail is roughly adjusted. And the position of the FC eddy current probe is adjusted according to the steel rails of different rail types.

Example 17:

on the basis of the above embodiment, in this embodiment, the bottom end of the FC vertical shaft 47 is connected with an FC vertical shaft support seat 46, an FC cylinder 45 is arranged between the FC vertical shaft support seat 46 and the FC base 44, a cylinder body of the FC cylinder 45 is connected with the FC vertical shaft support seat 46, and a piston rod of the FC cylinder 45 is in transmission connection with the FC base 44.

The relative movement of the FC vertical shaft 47 and the FC base 44 can be controlled by the expansion and contraction of the piston rod, so that the relative position of the FC eddy current probe and the steel rail can be accurately adjusted.

In this embodiment, an FC spring 412 is connected between the FC base 44 and the FC vertical shaft support 46. The FC spring 412 can play a role of buffering and damping when the FC vertical shaft 47 and the FC base 44 move relatively, thereby reducing the vibration of the FC probe mounting seat 48 and avoiding the vibration from being transmitted to the FC probe to affect the detection accuracy of the FC probe.

The FC vertical shaft 47 is provided with two and symmetrically distributed at two sides of the FC cylinder 45, and the FC spring 412 is provided with two and symmetrically distributed at two sides of the FC cylinder 45, thereby being beneficial to improving the stability of the FC vertical shaft supporting seat 46 and the FC probe mounting seat 48.

Example 18:

in addition to the above embodiments, in the present embodiment, the FC probe mounting seat 48 is provided with a probe mounting structure for mounting an FC eddy current probe.

As shown in fig. 17, the probe mounting structure includes an FC adjustment base 4121 provided on the FC probe mounting seat 48, and the FC eddy current probe is provided on the FC adjustment base 4121. The FC adjusting base 4121 is used as an installation base of the FC probe, the FC adjusting base 4121 is detachably connected with the FC probe installation base 48, and the installation and adjustment of the FC probe can be facilitated.

The FC adjusting base 4121 is provided with an FC adjusting sliding base 4122 in a sliding manner, and the FC eddy current probe is arranged on the FC adjusting sliding base 4122. The position of the FC eddy current probe and the relative position of the FC eddy current probe and the rail can be adjusted by the relative sliding of the FC adjustment slider 4122 and the FC adjustment base 4121, so that the FC eddy current probe is located at a desired position for inspection to improve the inspection accuracy.

In this embodiment, the FC adjusting base 4121 is provided with an FC adjusting screw 4123 in transmission connection with the FC adjusting slide 4122, and the FC adjusting base 4121 and the FC adjusting slide 4122 are installed in a dovetail groove fit manner. The FC adjustment slider 4122 can be moved in the longitudinal direction of the FC adjustment screw 4123 by rotating the FC adjustment screw 4123. The stability and the movement accuracy of the slider 4122 can be adjusted by FC by the dovetail groove fitting mounting.

In this embodiment, an FC adjustment lever 4124 is provided below the FC adjustment base 4121, and an FC limit roller 4126 capable of rolling-connecting with a rail is provided on the FC adjustment lever 4124. Utilize the spacing gyro wheel 4126 of FC and rail contact, can restrict the interval of FC vortex probe and rail, can make FC vortex probe and rail keep the same interval throughout at relative movement's in-process to be favorable to improving the detection precision, and prevent that FC vortex probe and rail from taking place the striking and leading to damaging.

In this embodiment, an FC roller limiting seat 4125 through which the FC adjusting rod 4124 penetrates is disposed below the FC adjusting base 4121, and a groove for mounting the FC limiting roller 4126 is disposed on the FC roller limiting seat 4125. The FC roller stopper 4125 can limit and protect the FC adjustment lever 4124, increase the rigidity of the FC adjustment lever 4124, and prevent the FC adjustment lever 4124 from bending and deforming under the pressure. The FC limiting roller 4126 can be protected in a limiting manner, and the FC limiting roller 4126 is prevented from falling off.

Example 19:

on the basis of above-mentioned embodiment, in this embodiment, be provided with FC horizontal roller 410 and FC vertical roller 49 on the FC probe mount pad 48, FC horizontal roller 410 and FC vertical roller 49 can simultaneously with rail rolling connection, when examining, FC horizontal roller 410 can play the effect of support to the rail, FC vertical roller 49 plays direction and limiting displacement to the rail, make the rail remove along same direction, be favorable to improving the relative position precision and the detection precision of FC vortex probe and rail.

Example 20:

as shown in fig. 18, in the present embodiment, the undercarriage for rail bottom flaw detection includes an F robot 51, an F horizontal sliding shaft 52 disposed in the F robot 51, an F sliding base 54 slidably disposed on the F horizontal sliding shaft 52, an F vertical sliding shaft 541 slidably disposed in the F sliding base 54 in the vertical direction, an F base 553 disposed at the bottom of the F vertical sliding shaft 541, an F mounting plate 56 disposed on the F base 553, an F probe mounting seat 58 disposed on the F mounting plate 56, and an F probe 516 disposed on the F probe mounting seat 58, an F cylinder 510 drivingly connected to the F probe mounting seat 58 is disposed on the F base 553, and an F spring 515 is connected between the F base 553 and the F sliding base 54. The F base 553 is pulled by the F spring 515 to prevent the F base 553 from falling. During detection, the steel rail is controlled to move to a designated position in the rack, and the F probe 516 is driven to move to a position below the bottom surface of the steel rail by driving the F mounting plate 56 to move, so that detection can be started. And controlling the steel rail and the F probe 516 to move relatively until the tail part of the steel rail leaves the coverage range of the F probe 516. In this embodiment, an air cylinder is disposed between the F sliding seat 54 and the F base 553, the air cylinder is used as a power source to drive the F vertical sliding shaft 541 to slide in the F sliding seat 54, a mounting seat can also be disposed at the top of the F vertical sliding shaft 541, and another air cylinder is disposed between the mounting seat and the F sliding seat 54, so that the two air cylinders are used to cooperatively move to drive the F sliding seat 54 and the F vertical sliding shaft 541 to move relatively. The F robot arm 51 is provided with H external connection plates 53 on both sides thereof, and is connected to other structures by the H external connection plates 53.

Example 21:

as shown in fig. 19, in the present embodiment, on the basis of the above-mentioned embodiment, an F-connecting plate 57 is provided below the F-mounting plate 56, and the F-connecting plate 57 is rotatably connected to an F-base 553. By relatively rotating the F link plate 57 and the F base 553, the angular deviation of the F attachment plate 56 in the vertical direction can be adjusted as necessary, and the angular deviation between the F probe 516 and the rail can be adjusted.

In this embodiment, the lower surface of the F connection plate 57 is a convex arc surface, and the F base 553 is provided with a concave arc surface having the same curvature as the lower surface of the F connection plate 57. This can increase the contact area between the F link plate 57 and the F base 553, thereby improving the stability of the F link plate 57 and improving the accuracy of adjustment.

In this embodiment, the F mounting plate 56 is provided with an F link support 562, the F link support 562 is hinged with an F link 561, and the F link 561 is hinged with the F slide 54 through an F link rotating shaft; the F mounting plate 56 is provided with a through hole with a diameter larger than that of the F connecting rod rotating shaft, and the F connecting rod rotating shaft penetrates through the through hole. Therefore, the F mounting plate 56 and the F slide 54 can be connected through the F link 561, so that the connection strength of the F mounting plate 56 and the F slide 54 is improved, and the stability of the F mounting plate 56 is improved. Through be provided with the through-hole that the diameter is greater than the F connecting rod pivot on F mounting panel 56 and can provide the space for the rotation of F mounting panel 56, avoid having the phenomenon of interfering between F mounting panel 56 and the F connecting rod pivot.

Example 22:

as shown in fig. 18 and 19, in the present embodiment, in addition to the above embodiments, the F base 553 is provided with a plurality of F link plate guide wheels 513 located at both sides of the F link plate 57. The F connecting plate guide wheels 513 on the two sides of the F connecting plate 57 can clamp the bottom of the F connecting plate 57, so that the stability of the F connecting plate 57 is improved, the moving direction of the F connecting plate 57 can be limited, and the adjustment precision is improved. The abrasion of the F connecting plate 57 can be reduced through rolling connection, and the influence on the precision caused by the fact that the F connecting plate 57 is abraded to cause a gap between the F connecting plate 57 and the F connecting plate guide wheel 513 is avoided.

Example 23:

on the basis of the above embodiments, in this embodiment, the F base 553 is rotatably provided with an F cylinder support 511, the F cylinder 510 is arranged on the F cylinder support 511, and F cylinder support limiting seats 512 located on the F base 553 are arranged on two sides of the F cylinder support 511. Therefore, the F cylinder 510 has a rotating function, so that the F cylinder 510 can rotate synchronously with the F mounting plate 56, and the interference between the piston rod of the F mounting plate 56 and the F mounting plate 56 is avoided.

Example 24:

in addition to the above embodiments, in the present embodiment, the F probe mounting plate 59 for mounting the F probe 516 is slidably disposed on the F probe mounting base 58. The F probe mounting seat 58 is provided with an F probe adjusting seat 591, an F wedge block 592 is arranged in the F probe adjusting seat 591 in a sliding mode, the F wedge block 592 is in transmission connection with the F probe mounting plate 59 through a wedge surface, and an F thread adjusting rod 593 in threaded connection with the F wedge block 592 is arranged on the F probe adjusting seat 591 in a rotating mode. The F probe mounting plate 59 is used as a mounting base of the F probe 516, the F wedge block 592 is moved to drive the F probe mounting plate 59 to move up and down, so that the height of the F probe 516 is adjusted, and the distance between the F probe 516 and the rail bottom of the steel rail can be adjusted as required.

Example 25:

in addition to the above embodiments, in the present embodiment, the F roller frame 55 is disposed above the F mounting plate 56, the F rail bottom roller 551 capable of rolling and connecting with the rail bottom is rotatably disposed on the F roller frame 55, and the F rail bottom side roller 552 capable of rolling and connecting with the rail bottom side surface is rotatably disposed on the F roller frame 55. After the steel rail is moved in place, the F slide carriage 54 is controlled to move by controlling the F mounting plate 56 to move until the F rail bottom roller 551 is contacted with the rail bottom of the steel rail, until the F rail bottom side roller 552 is contacted with the side surface of the rail bottom, the positioning precision of the F probe 516 and the relative position precision of the F rail bottom side roller 552 and the steel rail can be improved by using the F rail bottom roller 551 and the F rail bottom side roller 552, and in the detection process, the F rail bottom side roller 552 and the steel rail always keep the same distance, so that the detection precision is improved.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications and equivalent variations of the above embodiments according to the technical spirit of the present invention are included in the scope of the present invention.