阅读说明：本技术 一种钢轨探伤仪检测框体的分离翻起机构 (Separating and turning-up mechanism of steel rail flaw detector detection frame body ) 是由 周文智 马跃 刘江 张楚 刘秀春 杜云峰 秦彦伟 赵统文 赵文元 毕建有 刘风亭 于 2021-08-02 设计创作，主要内容包括：本发明公开了一种钢轨探伤仪检测框体的分离翻起机构,属于钢轨探伤技术领域,包括翻转及回位结构、横向移动及回位结构,所述翻转及回位结构包括转动轴、半开式护罩,所述转动轴的一端与所述半开式护罩连接,另一端穿过框体并与框体活动连接,轨底超声波探头与所述半开式护罩或所述转动轴连接,轨底超声波探头与所述半开式护罩同步运动,所述横向移动及回位结构包括套接联动杆、旋转定位座、驱动联动件。本发明该钢轨探伤仪检测框体的分离翻起机构,能够更方便地将轨底的超声波探头移出并向上抬起以越过下方的枕木,避免超声波探头碰到枕木造成损坏,进而保证探测工作的正常进行,结构相对简单,动作效率比较高,进一步提升了探测效率。(The invention discloses a separating and turning mechanism of a steel rail flaw detector detection frame body, which belongs to the technical field of steel rail flaw detection and comprises a turning and returning structure and a transverse moving and returning structure, wherein the turning and returning structure comprises a rotating shaft and a semi-open type shield, one end of the rotating shaft is connected with the semi-open type shield, the other end of the rotating shaft penetrates through the frame body and is movably connected with the frame body, a rail bottom ultrasonic probe is connected with the semi-open type shield or the rotating shaft, the rail bottom ultrasonic probe and the semi-open type shield synchronously move, and the transverse moving and returning structure comprises a sleeved linkage rod, a rotary positioning seat and a driving linkage piece. The separating and turning mechanism of the steel rail flaw detector detection frame body can move the ultrasonic probe at the rail bottom out more conveniently and lift the ultrasonic probe upwards to cross a sleeper below, avoids the ultrasonic probe from touching the sleeper to cause damage, further ensures normal detection work, has a relatively simple structure and relatively high action efficiency, and further improves the detection efficiency.)

1. The utility model provides a separation jack-up mechanism of rail flaw detector detection framework which characterized in that: including upset and return structure, lateral shifting and return structure, upset and return structure include axis of rotation, semi-open guard shield, the one end of axis of rotation with semi-open guard shield is connected, the other end pass the framework and with framework swing joint, rail end ultrasonic probe with semi-open guard shield or the axis of rotation hub connection, rail end ultrasonic probe with semi-open guard shield synchronous motion, lateral shifting and return structure are including cup jointing gangbar, rotation positioning seat, drive linkage piece, rotation positioning seat set up in the framework, with the middle part of cup jointing the gangbar rotates and connects, the one end of cup jointing the gangbar with the axis of rotation is located the end connection in the framework outside, the other end with drive linkage piece connects, drive linkage piece drives cup joint the gangbar with rotation positioning seat rotates as the center.

2. The mechanism of claim 1, wherein the mechanism comprises: the overturning and returning structure further comprises a bearing seat, the bearing seat is arranged on the frame body, and the rotating shaft penetrates through the bearing seat and is movably connected with the bearing seat.

3. The mechanism of claim 2, wherein the mechanism comprises: the bearing seat and the rotating shaft are provided with a bearing, the bearing seat is rotatably connected with the rotating shaft through the bearing, and the rotating shaft is slidably connected with an inner ring of the bearing.

4. The mechanism of claim 2, wherein the mechanism comprises: the sleeve joint linkage rod comprises a rotary rod and a sleeve joint, the rotary rod is connected with the sleeve joint, the sleeve joint is sleeved on the rotating shaft, and the inner aperture of the sleeve joint is larger than the outer diameter of the rotating shaft.

5. The mechanism of claim 4, wherein the mechanism comprises: the rotary positioning seat is provided with a rotary shaft, the rotary shaft penetrates through the rotary rod, and the rotary rod is connected with the rotary positioning seat in a rotating mode through the rotary shaft.

6. The mechanism of claim 5, wherein the mechanism comprises: the overturning and returning structure further comprises an overturning reset spring column, one end of the overturning reset spring column is connected with the semi-open type protective cover, the connecting point is located on the upper portion of the semi-open type protective cover, and the other end of the overturning reset spring column is connected with the frame body.

7. The mechanism of claim 6, wherein the mechanism comprises: the frame body is provided with a limiting part for preventing the semi-open type shield from excessively rotating.

8. The mechanism of claim 7, wherein the mechanism comprises: the driving linkage part is a driving steel cable, one end of the driving steel cable is connected with the end part of the rotating rod, and the other end of the driving steel cable is connected with an external driving component.

9. The mechanism of claim 8, wherein the mechanism comprises: the transverse moving and returning structure further comprises a rotary reset spring column, one end of the rotary reset spring column is connected with the rotary rod, the other end of the rotary reset spring column is connected with the frame body, and the driving steel cable penetrates through the rotary reset spring column in the axial direction.

10. The mechanism of claim 4, wherein the mechanism comprises: and the bearing seat and the rotating shaft are both provided with limiting pin rods for limiting the position of the sleeve joint.

Technical Field

The invention relates to the technical field of steel rail flaw detection, in particular to a separating and turning mechanism of a steel rail flaw detector detection frame.

Background

The rail flaw detector, i.e. rail flaw detection vehicle, can be divided into two types, electromagnetic rail flaw detection vehicle and ultrasonic rail flaw detection vehicle, according to the detection principle of rail flaw detection vehicle. The electromagnetic rail flaw detection vehicle detects the rail flaw according to a non-contact magnetic method. The ultrasonic steel rail flaw detection vehicle is used for detecting the flaw of a steel rail by an ultrasonic method, can detect fatigue defects and welding defects in the range of the rail bottom and the rail web of the steel rail (including the vicinity of a joint), and can detect scratches, crushing and wave abrasion of the rail bottom, corrosion of the rail bottom and crescent falling blocks. The vehicle is equipped with automatic recording equipment, and can record rail damage signals, line characteristic signals (bridge, tunnel, joint, sleeper category and the like) and the like. From the record the size and location of the damage within the rail can be determined analytically.

But there is certain not enough when using in present rail flaw detection car (hand propelled), when carrying out online flaw detection work to the rail, the ultrasonic transducer who is used for surveying the rail end need shift out and upwards lift up in order to cross the sleeper of below, avoids ultrasonic transducer to touch the sleeper and causes the damage, and then causes the influence to the normal clear of surveying work, and the mechanism that is used for removing rail end ultrasonic transducer on the present rail flaw detection car is complicated relatively, and the action efficiency ratio is lower. Therefore, a separating and turning mechanism of a rail flaw detector detection frame is provided.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: how to solve the problem that the mechanism for moving the rail bottom ultrasonic probe on the prior rail flaw detection vehicle is relatively complex and the action efficiency is relatively low, and provides a separating and turning mechanism for a rail flaw detector detection frame.

The invention solves the technical problems by the following technical proposal, the invention comprises a turnover and return structure and a transverse moving and return structure, the turning and returning structure comprises a rotating shaft and a semi-open type shield, one end of the rotating shaft is connected with the semi-open type shield, the other end of the rotating shaft penetrates through the frame body and is movably connected with the frame body, the rail bottom ultrasonic probe is connected with the semi-open type shield or the rotating shaft, the rail bottom ultrasonic probe and the semi-open type shield synchronously move, the transverse moving and returning structure comprises a sleeved linkage rod, a rotary positioning seat and a driving linkage piece, the rotary positioning seat is arranged on the frame body, the middle part of the sleeved linkage rod is rotatably connected, one end of the sleeved linkage rod is connected with the end part of the rotating shaft, which is positioned on the outer side of the frame body, the other end of the sleeved linkage rod is connected with the driving linkage piece, and the driving linkage piece drives the sleeved linkage rod to rotate by taking the rotary positioning seat as the center.

Furthermore, the turning and returning structure further comprises a bearing seat, the bearing seat is arranged on the frame body, and the rotating shaft penetrates through the bearing seat and is movably connected with the bearing seat.

Furthermore, a bearing is arranged between the bearing seat and the rotating shaft, the bearing seat is rotatably connected with the rotating shaft through the bearing, and the rotating shaft is slidably connected with an inner ring of the bearing.

Furthermore, the sleeved linkage rod comprises a rotary rod and a sleeve joint, the rotary rod is connected with the sleeve joint, the sleeve joint is sleeved on the rotating shaft, and the inner aperture of the sleeve joint is larger than the outer diameter of the rotating shaft.

Furthermore, a rotating shaft is arranged on the rotating positioning seat, the rotating shaft penetrates through the rotating rod, and the rotating rod is rotatably connected with the rotating positioning seat through the rotating shaft.

Furthermore, the turning and returning structure further comprises a turning reset spring column, one end of the turning reset spring column is connected with the semi-open type shield, the connecting point is located at the upper part of the semi-open type shield, and the other end of the turning reset spring column is connected with the frame body.

Furthermore, the frame body is provided with a limiting part for preventing the semi-open type shield from excessively rotating.

Furthermore, the driving linkage part is a driving steel cable, one end of the driving steel cable is connected with the end part of the rotating rod, and the other end of the driving steel cable is connected with an external driving component.

Furthermore, the transverse moving and returning structure further comprises a rotary reset spring column, one end of the rotary reset spring column is connected with the rotary rod, the other end of the rotary reset spring column is connected with the frame body, and the driving steel cable penetrates through the rotary reset spring column along the axial direction.

Furthermore, the bearing seat and the rotating shaft are both provided with a limiting pin rod used for limiting the position of the sleeve joint.

Compared with the prior art, the invention has the following advantages: this separation of rail flaw detector detection framework turns over mechanism can shift out the ultrasonic transducer at the bottom of the rail more conveniently and upwards lift up in order to cross the sleeper of below, avoids ultrasonic transducer to touch the sleeper and causes the damage, and then guarantees the normal clear of detection work, and the structure is simple relatively, and the action efficiency is than higher, has further promoted detection efficiency, is worth being used widely.

Drawings

FIG. 1 is a partial front view of a separating and turning mechanism mounted on a frame according to an embodiment of the present invention;

FIG. 2 is a schematic side view of a portion of a separating and turning mechanism mounted on a frame according to an embodiment of the present invention;

fig. 3 is a partial top view of the separating and turning-up mechanism mounted on the frame according to the embodiment of the present invention.

Detailed Description

The following examples are given for the detailed implementation and specific operation of the present invention, but the scope of the present invention is not limited to the following examples.

The embodiment provides a technical scheme: a separation turning mechanism of a steel rail flaw detector detection frame body comprises a turning and returning structure, a transverse moving and returning structure, wherein the turning and returning structure comprises a rotating shaft 41 and a semi-open type shield 4, most of a rail bottom ultrasonic probe 3 is positioned inside the semi-open type shield 4, a small part of the rail bottom ultrasonic probe is leaked out of the semi-open type shield 4 and is used for detecting flaws at the bottom of a rail, one end of the rotating shaft 41 is fixedly connected with the semi-open type shield 4, the other end of the rotating shaft passes through the frame body 1 and is movably connected with the frame body 1, the rail bottom ultrasonic probe 3 is connected with the semi-open type shield 4 or the end face of the rotating shaft 41 through a support frame, in principle, when the semi-open type shield 4 is ensured to collide with a sleeper and rotate by taking the rotating shaft 41 as a center, the rail bottom ultrasonic probe 3 can synchronously rotate, and the installation position of the rail bottom ultrasonic probe 3 comprises but is not limited to the installation position, the transverse moving and returning structure comprises a sleeved linkage rod and a rotary positioning seat 53, wherein the rotary positioning seat 53 is arranged on the frame body 1 and is rotatably connected with the middle of the sleeved linkage rod, one end of the sleeved linkage rod is connected with the end part, located on the outer side of the frame body 1, of the rotating shaft 41, the other end of the sleeved linkage rod is connected with a driving linkage piece, the driving linkage piece drives the sleeved linkage rod to rotate by taking the rotary positioning seat 53 as the center, the rotating shaft 41 is driven to move out of the frame body 1, and the rail bottom ultrasonic probe 3 is moved away from the rail bottom.

In this embodiment, the turning and returning structure further includes a bearing seat 42, the bearing seat 42 is installed on the frame 1, and the rotating shaft 41 penetrates through the bearing seat 42 and is movably connected therewith.

In this embodiment, a bearing is disposed between the bearing seat 42 and the rotating shaft 41, and the bearing seat 42 and the rotating shaft 41 are rotatably connected through the bearing.

In this embodiment, the rotating shaft 41 is slidably connected to the inner ring of the bearing, for example, an axial block is disposed on the inner wall of the inner ring of the bearing, and an axial sliding slot having a length much longer than that of the axial block and a width slightly larger than that of the axial block is disposed on the rotating shaft 41, so that the axial block can slide in the axial sliding slot, and the rotating shaft 41 can complete the moving away and moving closer actions.

In this embodiment, the sleeved linkage rod includes a rotating rod 52 and a sleeve joint 51, the rotating rod 52 is connected with the sleeve joint 51, the sleeve joint 51 is sleeved on the rotating shaft 41, and the inner aperture of the sleeve joint is larger than the outer diameter of the rotating shaft 41, so as to avoid interference with the axial movement of the rotating shaft 41 when the rotating rod 52 rotates horizontally.

In this embodiment, the rotation positioning seat 53 is provided with a rotation shaft 531, the rotation shaft 531 is disposed to penetrate the rotation lever 52, and the rotation lever 52 is rotatably connected to the rotation positioning seat 53 through the rotation shaft 531, so that the rotation lever 52 can horizontally rotate.

In this embodiment, the turning and returning structure further includes a turning return spring column 43, one end of the turning return spring column 43 is connected to the semi-open type shield 4, the connection point is located on the upper portion of the semi-open type shield 4, and the turning return spring column is located on one side above the rotating shaft 41 and used for pulling back the semi-open type shield 4 and the rail-bottom ultrasonic probe 3 to a vertical posture after the semi-open type shield 4 passes through a sleeper, and the other end of the turning return spring column 43 is connected to the frame body 1.

In this embodiment, the frame body 1 is provided with a limiting portion for preventing the semi-open type shield 4 from excessively rotating and affecting subsequent detection work.

In this embodiment, the driving linkage is a driving cable 55, one end of the driving cable 55 is connected to the end of the rotating rod 52, and the other end of the driving cable 55 is connected to an external driving component, and the external driving component is configured to pull the end of the rotating rod 52 under a control instruction, so as to move the rail-bottom ultrasonic probe 3 away from the rail bottom.

In this embodiment, the lateral moving and returning structure further includes a rotating return spring 54, one end of the rotating return spring 54 is connected to the rotating rod 52, the other end of the rotating return spring is connected to the frame 1, and the driving cable 55 axially penetrates through the rotating return spring 54. After crossing the sleeper, the semi-open type shield 4 and the rail bottom ultrasonic probe 3 return to the corresponding position of the detection state, then the driving force is removed, the rotary return spring column 54 drives one end (the end part far away from the rotating shaft 41) of the rotary rod 52 to horizontally rotate towards the outer side of the frame body 1, then the other end of the rotary rod 52 drives the rotating shaft 41 to move towards the inner side of the frame body 1 through the sleeve joint 51, and then the rail bottom ultrasonic probe 3 is moved to the rail bottom of the rail 2, and then the follow-up detection work is completed.

In this embodiment, the bearing seat 42 and the rotating shaft 41 are both provided with a limit pin 6 for limiting the position of the telescopic joint 51.

It should be noted that the semi-open type hood 4 is provided with a first trigger switch for controlling the external driving component to pull one end of the rotating rod 52 when the semi-open type hood 4 collides with a sleeper, and the limiting part is provided with a second trigger switch for controlling the external driving component to remove the driving force after the rail-bottom ultrasonic probe 3 is pulled back to the vertical posture. The first trigger switch and the second trigger switch include, but are not limited to, pressure switches, etc., and the above-mentioned purpose can be achieved.

The working principle is as follows: when in detection, the frame body 1 is erected on the track 1, in the pushing process, the first trigger switch is triggered after the semi-open type shield 4 touches a sleeper, the driving steel cable 55 is tensioned, the rotary reset spring column 54 is compressed to drive one end of the rotary rod 52 to horizontally rotate towards the inner side of the frame body 1, the other end of the rotary rod 52 horizontally rotates towards the outer side of the frame body 1, and further the rotary shaft 41 is driven to slide outwards to move the rail bottom ultrasonic probe 3 away from the rail bottom, at the moment, the semi-open type shield 4 advances along the upper surface of the sleeper, after the sleeper is crossed, the reset spring column 43 is overturned to pull the semi-open type shield 4 and the rail bottom ultrasonic probe 3 to return to the corresponding position of the detection state, at the moment, the second trigger switch on the limiting part is triggered, the external driving component is controlled to remove the driving force, one end (the end far away from the rotary shaft 41) of the rotary rod 52 is driven to horizontally rotate towards the outer side of the frame body 1 under the elasticity of the rotary reset spring column 54, then, the other end of the rotating rod 52 drives the rotating shaft 41 to move towards the inner side of the frame 1 through the sleeve joint 51, so as to move the rail-bottom ultrasonic probe 3 to the rail bottom of the rail 2 (original detection position), thereby completing the subsequent detection work

To sum up, the separation of rail flaw detector detection framework of above-mentioned embodiment turns up the mechanism, can shift out the ultrasonic transducer at the bottom of the rail more conveniently and upwards lift up in order to cross the sleeper of below, avoids ultrasonic transducer to touch the sleeper and causes the damage, and then guarantees the normal clear of detection work, and the structure is simple relatively, and the action efficiency ratio is higher, has further promoted detection efficiency, is worth being used widely.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.