阅读说明：本技术 一种灌注桩桩头混凝土剥离凿除装置 (Bored concrete pile head concrete stripping chiseling device ) 是由 朱克冰 王瑞丰 普娜 胡丽霞 刘方 曹力 余浩 于 2021-05-06 设计创作，主要内容包括：一种灌注桩桩头混凝土剥离凿除装置,包括吊具(1)、吊钩(2)、钢丝绳(3)以及吊挂环(4),其特征在于：所述吊挂环(4)的下端与定位锥筒(6)的小口端相固定,定位锥筒(6)的大口端的下部固定有固定环(7),吊挂环(4)的环内固定有连接件(5),连接件(5)的下端且位于定位锥筒(6)的轴心线上固定有垂直支撑杆(8),固定环(7)的底部与垂直固定臂(12)的上端相固定,垂直固定臂(12)的下端安装有升降机构,升降机构的升降连接端与环形外框(17)连接固定,本发明结构合理,采用了机械化自动施工,施工效率得到了极大的提高,并且能够精确控制破碎截断面的位置,而且整体剥离凿除质量好,截断面规整。(The utility model provides a bored concrete pile head concrete stripping chiseling device, includes hoist (1), lifting hook (2), wire rope (3) and hangs link (4), its characterized in that: the lower end of the hanging ring (4) is fixed with the small end of the positioning cone cylinder (6), the lower part of the large end of the positioning cone cylinder (6) is fixed with a fixing ring (7), a connecting piece (5) is fixed in the ring of the hanging ring (4), a vertical support rod (8) is fixed at the lower end of the connecting piece (5) and is positioned on the axis of the positioning cone cylinder (6), the bottom of the fixing ring (7) is fixed with the upper end of a vertical fixing arm (12), a lifting mechanism is installed at the lower end of the vertical fixing arm (12), and the lifting connecting end of the lifting mechanism is connected and fixed with an annular outer frame (17).)

1. The utility model provides a bored concrete pile head concrete stripping chiseling device, includes hoist (1), lifting hook (2), wire rope (3) and hangs link (4), and lifting hook (2) are installed to the lower extreme of hoist (1), and lifting hook (2) are connected its characterized in that through wire rope (3) with hanging link (4) that are located the below: the lower end of the hanging ring (4) is fixed with the small end of the positioning cone cylinder (6), the lower part of the large end of the positioning cone cylinder (6) is fixed with a fixing ring (7), a connecting piece (5) is fixed in the ring of the hanging ring (4), the lower end of the connecting piece (5) is fixed with a vertical supporting rod (8) on the axis of the positioning cone cylinder (6), the bottom of the vertical supporting rod (8) is provided with a supporting cone (9), three or more than three electric adjusting seats (10) are arranged on the annular inner side surface of the fixing ring (7) at equal intervals, a roller (11) is arranged on one side of the electric adjusting seat (10) close to the center, the bottom of the fixing ring (7) is fixed with the upper end of the vertical fixing arm (12), the lower end of the vertical fixing arm (12) is provided with a lifting mechanism, the lifting connecting end of the lifting mechanism is fixedly connected with the annular outer frame (17), the annular inner ring of the annular outer frame (17) is provided with an annular track (20), a gear ring (21) is arranged on a horizontal annular surface or a vertical annular surface of the annular rail (20), a sliding seat (22) is arranged on the annular rail (20), a driving motor (23) is arranged inside the sliding seat (22), a driving gear (24) is fixed on an output shaft of the driving motor (23), the driving gear (24) is meshed with the gear ring (21), a swinging arm (26) is arranged on one side, close to the center of the annular outer frame (17), of the sliding seat (22) through a hinge shaft (25), a swinging driving device (27) is arranged between the swinging arm (26) and the sliding seat (22), a cutting machine (28) is arranged at the outer end of the swinging arm (26), a cutting disc on the cutting machine (28) faces the center direction of the annular outer frame (17), an annular crushing mounting seat (29) is arranged on the annular inner wall of the annular outer frame (17), a plurality of mounting holes are uniformly formed in the annular inner wall of the annular crushing mounting seat (29), hydraulic jacking drill rods (19) are respectively arranged in the mounting holes.

2. The cast-in-place pile head concrete stripping and chiseling device according to claim 1, characterized in that: elevating system includes step motor (13), lead screw (14), screw nut (15) and mounting bracket, the mounting bracket is installed perpendicularly to the lower extreme of perpendicular fixed arm (12), the upper and lower both ends of mounting bracket are provided with the bearing mount pad, install respectively on the bearing mount pad at the both ends of lead screw (14), the one end of lead screw (14) is coaxial fixed with the output shaft of step motor (13), install on perpendicular fixed arm (12) or mounting bracket step motor (13), install screw nut (15) or take the sliding seat of lead screw mounting hole on lead screw (14), screw nut (15) or take the sliding seat of lead screw mounting hole to be connected fixedly with annular frame (17).

3. The cast-in-place pile head concrete stripping and chiseling device according to claim 1, characterized in that: the middle section or the upper section of the vertical support rod (8) is internally provided with an electric lifting rod, the bottom of the vertical support rod (8) is set to be conical, and the bottom of the vertical support rod (8) is supported at the center of the upper end of the concrete pile head (30) in a conical manner.

4. The cast-in-place pile head concrete stripping and chiseling device according to claim 1, characterized in that: electric regulation seat (10) adopt electromagnetic drive ware or electric telescopic handle, and electromagnetic drive ware or electric telescopic handle's flexible end is last to install gyro wheel (11), and the axis of gyro wheel (11) is mutually perpendicular with the axis of solid fixed ring (7), and gyro wheel (11) contact with the annular outer wall of concrete pile head (31).

5. The cast-in-place pile head concrete stripping and chiseling device according to claim 1, characterized in that: three or more than three hydraulic positioning claws (18) are symmetrically arranged on the annular inner wall of the annular outer frame (17) and below the annular crushing mounting seat (29), the end parts of the positioning claws, which are close to the annular axial lead of the annular outer frame (17), are provided with conical shapes, and the positioning claws are arranged on the telescopic end of the small hydraulic cylinder.

6. The cast-in-place pile head concrete stripping and chiseling device according to claim 1, characterized in that: the infrared receiver (16) is embedded in the annular outer frame (17), and the position of the infrared receiver (16) and the position of the cutting machine (28) during cutting work are on the same horizontal plane.

7. The cast-in-place pile head concrete stripping and chiseling device according to claim 1, characterized in that: the cross section that annular track (20) were is L type structure, has seted up the annular groove on the annular inner wall of annular frame (17), and the annular track groove that is linked together with the annular groove is seted up to the inside of annular frame (17), and the annular groove is mutually perpendicular with the annular track groove, and the surface in annular groove or annular track groove is inlayed and is provided with ring gear (21).

8. The cast-in-place pile head concrete stripping and chiseling device according to claim 1, characterized in that: the swing driving device (27) is of a cylinder structure, the telescopic end of the cylinder is connected with the swing arm (26) through a connecting shaft, and the cylinder seat is installed on the annular outer frame (17) through the connecting shaft.

9. The cast-in-place pile head concrete stripping and chiseling device according to claim 1, characterized in that: the swing driving device (27) is a cam rotating mechanism, the cam rotating mechanism comprises a motor, a cam and a connecting rod, the motor is installed on the annular outer frame (17), the cam is fixed on a rotating shaft of the motor, the cam is connected with one end of the connecting rod through a connecting shaft, and the other end of the connecting rod is installed on the swing arm (26) through a hinge shaft.

Technical Field

The invention relates to a concrete stripping chiseling device, in particular to a cast-in-place pile head concrete stripping chiseling device, and belongs to the technical field of constructional engineering equipment.

Background

The cast-in-situ bored pile is a common pile type which has a wide application range in the building foundation construction, and is widely used in various foundation constructions such as industrial and civil buildings, bridges and the like. In order to ensure the pile head concrete quality of the cast-in-place pile, the specification stipulates that the height of the cast-in-place pile is 500-1000 mm higher than the design height when the cast-in-place pile is constructed, so that the concrete pile head which exceeds the design height needs to be cut off after the construction is finished. The concrete pile head is broken and cut with great difficulty, because of the concrete cast-in-place structure, criss-cross reinforcing steel bars are arranged in the concrete pile head, the concrete pile head is limited by the size of the space, meanwhile, the lower part of the concrete pile head cannot be damaged, large machinery cannot play a role, the concrete is broken by adopting a manual impact drill, a pneumatic pick and an iron hammer, and redundant reinforcing steel bars are cut by a cutting machine. Traditional pile head concrete is peeled off and is dug the mode and waste time and energy, and intensity of labour is big, and the construction cycle is long, cuts sectional position very difficult with control to the breakage moreover, very easily leads to cutting the too big or condition that cuts the length not enough of length, often still can cause the concrete and main muscle to separate the condition incomplete, main muscle fracture, damage, seriously influences follow-up construction progress and construction quality. The technical problem is solved by lacking a pile head concrete stripping chiseling device which is reasonable in structure, good in pile head concrete stripping chiseling effect and high in construction efficiency.

Disclosure of Invention

The invention aims at solving the problems that the existing concrete pile head is difficult to break and cut, the traditional pile head concrete stripping and chiseling mode wastes time and labor, the labor intensity is high, the construction period is long, but also the position of the broken section is difficult to control, which is easy to cause the condition of overlarge section length or insufficient section length, meanwhile, the defects and defects that the overall stripping and chiseling quality is poor, the cut surface is irregular, and the subsequent construction progress and the construction quality are seriously influenced are overcome, the structure is reasonable, the mechanical automatic construction is adopted, only manual auxiliary operation is needed, the construction efficiency is greatly improved, and can accurately control the position of the broken section, avoid the condition of overlarge section length or insufficient section length, and the whole stripping and chiseling device has good quality and regular section, and cannot damage the lower part of the pile head of the cast-in-place pile.

In order to achieve the above purpose, the technical solution of the invention is as follows: the utility model provides an assembled superimposed sheet concatenation seam suspension type template structure, includes hoist, lifting hook, wire rope and suspension loop, and the lifting hook is installed to the lower extreme of hoist, and the lifting hook is connected its characterized in that through wire rope and the suspension loop that is located the below: the lower end of the hanging ring is fixed with the small end of the positioning cone cylinder, the lower part of the large end of the positioning cone cylinder is fixed with a fixing ring, a connecting piece is fixed in the hanging ring, the lower end of the connecting piece is fixed with a vertical supporting rod on the axis of the positioning cone cylinder, the bottom of the vertical supporting rod is provided with a supporting cone, three or more than three electric adjusting seats are arranged on the annular inner side surface of the fixing ring at equal intervals, a roller is arranged on one side of the electric adjusting seat close to the center, the bottom of the fixing ring is fixed with the upper end of the vertical fixing arm, the lower end of the vertical fixing arm is provided with a lifting mechanism, the lifting connecting end of the lifting mechanism is fixedly connected with the annular outer frame, an annular track is arranged on the annular inner ring of the annular outer frame, a gear ring is arranged on the horizontal annular surface or the vertical annular surface of the annular track, a sliding seat is arranged on the annular track, and a driving motor is arranged in the sliding seat, be fixed with drive gear on driving motor's the output shaft, drive gear meshes with the ring gear mutually, the swing arm is installed through the articulated shaft in one side near annular frame center of sliding seat, install swing drive between swing arm and the sliding seat, the cutting machine is installed to the outer end of swing arm, cutting disc on the cutting machine is towards the central direction of annular frame, be provided with annular broken mount pad on the annular inner wall of annular frame, a plurality of mounting holes have evenly been seted up on the annular inner wall of annular broken mount pad, install hydraulic pressure borer in the mounting hole respectively.

Further, elevating system includes step motor, the lead screw, screw nut and mounting bracket, and the mounting bracket is installed perpendicularly to the lower extreme of perpendicular fixed arm, and the upper and lower both ends of mounting bracket are provided with the bearing mount pad, and install respectively on the bearing mount pad at the both ends of lead screw, and the one end of lead screw is coaxial fixed with step motor's output shaft, and step motor installs on perpendicular fixed arm or mounting bracket, installs screw nut or the sliding seat of taking the lead screw mounting hole on the lead screw, and screw nut or the sliding seat of taking the lead screw mounting hole are connected fixedly with annular frame.

Furthermore, an electric lifting rod is arranged in the middle section or the upper section of the vertical supporting rod, the bottom of the vertical supporting rod is conical, and the bottom of the vertical supporting rod is conical and supported at the center of the upper end of the concrete pile head.

Furthermore, the electric adjusting seat adopts an electromagnetic driver or an electric telescopic rod, the telescopic end of the electromagnetic driver or the electric telescopic rod is provided with a roller, the axis of the roller is vertical to the axis of the fixing ring, and the roller is contacted with the annular outer wall of the concrete pile head.

Furthermore, three or more than three hydraulic positioning claws are symmetrically arranged on the annular inner wall of the annular outer frame and below the annular crushing mounting seat, the end parts of the positioning claws, which are close to the annular axial lead of the annular outer frame, are provided with conical shapes, and the positioning claws are arranged on the telescopic end of the small hydraulic cylinder.

Furthermore, an infrared receiver is embedded on the annular outer frame, and the position of the infrared receiver and the position of the cutting machine during cutting work are on the same horizontal plane.

Furthermore, the cross section that the annular track is L type structure, has seted up the annular groove on the annular inner wall of annular frame, and the annular track groove that is linked together with the annular groove is seted up to the inside of annular frame, and the annular groove is mutually perpendicular with the annular track groove, and the surface inlay of annular groove or annular track groove is provided with the ring gear.

Furthermore, the swing driving device is of a cylinder structure, the telescopic end of the cylinder is connected with the swing arm through a connecting shaft, and the cylinder seat is installed on the annular outer frame through the connecting shaft.

Furthermore, the swing driving device is a cam rotating mechanism, the cam rotating mechanism comprises a motor, a cam and a connecting rod, the motor is installed on the annular outer frame, the cam is fixed on a rotating shaft of the motor, the cam is connected with one end of the connecting rod through a connecting shaft, and the other end of the connecting rod is installed on the swing arm through a hinge shaft.

The invention has the beneficial effects that:

1. the invention adopts a vertical hanging mode to suspend the butt joint positioning assembly, and utilizes the positioning conical cylinder and the vertical supporting rod to carry out rapid and accurate butt joint and positioning, thereby solving the problem of rapid positioning between the positioning conical cylinder and the concrete pile head and being capable of adapting to narrow construction space between concrete piles.

2. According to the invention, the height adjusting component and the cutting, stripping and chiseling component are adopted to adjust the height of the cutting, stripping and chiseling component on the pile head, so that accurate cutting, stripping and chiseling of the preset height of the concrete pile head is realized, notch circular cutting and hydraulic crushing of concrete can be sequentially completed through the cutting, stripping and chiseling component, and good crushing, stripping and cutting effects are achieved.

3. The invention has reasonable structure, adopts mechanical and automatic construction, only needs manual auxiliary operation, greatly improves the construction efficiency, can accurately control the position of the broken intercepting surface, avoids the condition of overlarge intercepting length or insufficient intercepting length, has good integral stripping and chiseling quality and regular intercepting surface, and cannot damage the lower part of the concrete pile head.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a state diagram of the present invention in use.

Fig. 3 is a schematic structural diagram of a first embodiment of the docking positioning assembly of the present invention.

Fig. 4 is a schematic structural diagram of a second embodiment of the docking positioning assembly of the present invention.

FIG. 5 is a schematic view of the retaining ring of the present invention.

Fig. 6 is a schematic structural view of the lifting mechanism of the present invention.

FIG. 7 is a schematic view of the construction of the cutting stripper chisel assembly of the present invention.

Fig. 8 is a partial structural schematic view of fig. 7.

In the figure: the device comprises a lifting appliance 1, a lifting hook 2, a steel wire rope 3, a hanging ring 4, a connecting piece 5, a positioning conical cylinder 6, a fixing ring 7, a vertical supporting rod 8, a supporting cone 9, an electric adjusting seat 10, a roller 11, a vertical fixing arm 12, a stepping motor 13, a lead screw 14, a lead screw nut 15, an infrared receiver 16, an annular outer frame 17, a hydraulic positioning claw 18, a hydraulic jacking rod 19, an annular track 20, a gear ring 21, a sliding seat 22, a driving motor 23, a driving gear 24, a hinged shaft 25, a swinging arm 26, a swinging driving device 27, a cutting machine 28, a crushing mounting seat 29 and a concrete pile head 30.

Detailed Description

The invention is described in further detail below with reference to the following description of the drawings and the detailed description.

Referring to fig. 1 to 8, the cast-in-place pile head concrete stripping chiseling device of the present invention includes a lifting appliance 1, a lifting hook 2, a steel wire rope 3 and a hanging ring 4, wherein the lifting hook 2 is installed at the lower end of the lifting appliance 1, and the lifting hook 2 is connected with the hanging ring 4 located below through the steel wire rope 3, and is characterized in that: the lower end of the hanging ring 4 is fixed with the small end of the positioning conical cylinder 6, the lower part of the large end of the positioning conical cylinder 6 is fixed with a fixing ring 7, a connecting piece 5 is fixed in the ring of the hanging ring 4, the lower end of the connecting piece 5 is fixed with a vertical support rod 8 on the axis of the positioning conical cylinder 6, the bottom of the vertical support rod 8 is provided with a support cone 9, three or more than three electric adjusting seats 10 are arranged on the annular inner side surface of the fixing ring 7 at equal intervals, one side of the electric adjusting seat 10 close to the center is provided with a roller 11, the bottom of the fixing ring 7 is fixed with the upper end of a vertical fixing arm 12, the lower end of the vertical fixing arm 12 is provided with a lifting mechanism, the lifting connecting end of the lifting mechanism is fixedly connected with an annular outer frame 17, an annular track 20 is arranged on the annular inner ring of the annular outer frame 17, and a gear ring 21 is arranged on the horizontal annular surface or the vertical annular surface of the annular track 20, install the sliding seat 22 on the circular orbit 20, the internally mounted of sliding seat 22 has driving motor 23, be fixed with drive gear 24 on the output shaft of driving motor 23, drive gear 24 meshes with ring gear 21 mutually, swing arm 26 is installed through articulated shaft 25 to one side that is close to annular frame 17 center of sliding seat 22, install swing drive 27 between swing arm 26 and the sliding seat 22, cutting machine 28 is installed to the outer end of swing arm 26, the cutting dish on the cutting machine 28 is towards the central direction of annular frame 17, be provided with annular broken mount pad 29 on the annular inner wall of annular frame 17, a plurality of mounting holes have evenly been seted up on the annular inner wall of broken mount pad 29, install hydraulic pressure filler metal 19 in the mounting hole respectively.

Elevating system includes step motor 13, lead screw 14, screw nut 15 and mounting bracket, the mounting bracket is installed perpendicularly to the lower extreme of perpendicular fixed arm 12, the upper and lower both ends of mounting bracket are provided with the bearing mount pad, install respectively on the bearing mount pad at screw 14's both ends, screw 14's one end is coaxial fixed with step motor 13's output shaft, step motor 13 installs on perpendicular fixed arm 12 or mounting bracket, install screw nut 15 or take the sliding seat of screw mounting hole on screw 14, screw nut 15 or take the sliding seat of screw mounting hole to be connected fixedly with annular frame 17.

An electric lifting rod is arranged in the middle section or the upper section of the vertical supporting rod 8, the bottom of the vertical supporting rod 8 is conical, and the bottom of the vertical supporting rod 8 is conical and supported at the center of the upper end of the concrete pile head 30.

The electric adjusting seat 10 adopts an electromagnetic driver or an electric telescopic rod, the telescopic end of the electromagnetic driver or the electric telescopic rod is provided with a roller 11, the axis of the roller 11 is vertical to the axis of the fixed ring 7, and the roller 11 is contacted with the annular outer wall of the concrete pile head 30.

Three or more than three hydraulic positioning claws 18 are symmetrically arranged on the annular inner wall of the annular outer frame 17 and below the annular crushing mounting seat 29, the end parts of the positioning claws, which are close to the annular axial lead of the annular outer frame 17, are provided with conical shapes, and the positioning claws are arranged on the telescopic end of the small hydraulic cylinder.

The annular outer frame 17 is embedded with an infrared receiver 16, and the position of the infrared receiver 16 is on the same horizontal plane as the position of the cutting machine 28 during cutting.

The cross section that annular track 20 was is L type structure, has seted up the annular groove on the annular inner wall of annular frame 17, and the annular track groove that is linked together with the annular groove is seted up to the inside of annular frame 17, and the annular groove is mutually perpendicular with the annular track groove, and the surface inlay of annular groove or annular track groove is provided with ring gear 21.

The swing driving device 27 is of a cylinder structure, the telescopic end of the cylinder is connected with the swing arm 26 through a connecting shaft, and the cylinder seat is installed on the annular outer frame 17 through the connecting shaft.

The swing driving device 27 is a cam rotating mechanism, the cam rotating mechanism includes a motor, a cam and a connecting rod, the motor is installed on the annular outer frame 17, the cam is fixed on a rotating shaft of the motor, the cam is connected with one end of the connecting rod through a connecting shaft, and the other end of the connecting rod is installed on the swing arm 26 through a hinge shaft.

Referring to fig. 1 and 2, the invention is a suspension structure, which needs to be hung by a crane, a tower crane, etc. when in use, specifically, a hook 2 is installed at the lower end of a hanger 1, and is connected with the invention by a steel wire rope 3 on the hook 2. The hanging ring 4 is positioned at the top, and the hanging ring 4 is directly connected and fixed with the steel wire rope 3 or other hanging connecting pieces. The invention mainly comprises three parts, namely a butting positioning component positioned at the upper part, a height adjusting component positioned at the middle part and a cutting, stripping and chiseling component positioned at the lower part. The butt joint positioning component is used for realizing quick and accurate butt joint and positioning with the pile head in a vertical state; the height adjusting component is used for adjusting the height of the cutting, stripping and chiseling component on the pile head, so that accurate cutting, stripping and chiseling of the preset height of the concrete pile head are achieved; the cutting, stripping and chiseling assembly is used for quickly grooving and hydraulically squeezing and crushing the concrete pile head.

In order to solve the problem that the conventional common annular pile head cutting device is inconvenient to be quickly butted and positioned with a concrete pile head 30 in the hoisting process, the invention adopts a butting positioning assembly which mainly comprises a hanging ring 4, a connecting piece 5, a positioning conical cylinder 6, a fixing ring 7, a central fixing frame 8, a vertical supporting rod 9, an electric adjusting seat 10 and a roller 11, wherein the positioning conical cylinder 6 plays a critical role in butting positioning, and the positioning conical cylinder 6 needs to be matched with the vertical supporting rod 9 for use. The positioning conical cylinder 6 is of a circular conical cylinder structure with openings at two ends, the large opening end of the positioning conical cylinder 6 is positioned below, the small opening end of the positioning conical cylinder 6 is positioned above, the small opening end of the positioning conical cylinder 6 is fixed with the lower end of the hanging ring 4, the lower part of the large opening end of the positioning conical cylinder 6 is fixed with a fixing ring 7, and the inner diameter of the large opening end of the positioning conical cylinder 6 is far larger than the outer diameter of the concrete pile head 30. When in butt joint, the positioning conical cylinder 6 is convenient to be quickly sleeved on the concrete pile head 31 due to the larger inner diameter target of the large opening end of the positioning conical cylinder, and after the positioning conical cylinder is sleeved on the upper end of the concrete pile head 31, the position is corrected under the action of gravity by means of the conical surface of the positioning conical cylinder 6. When the positioning cone cylinder 6 descends to a certain height, the bottom cone of the vertical support rod 9 is supported at the center of the upper end of the concrete pile head 31, and the length of the vertical support rod 9 is adjusted, so that the fixing ring 7 can be completely sleeved on the outer circumference of the concrete pile head 31, the vertical support rod 9 is adjusted to be in a vertical state, and the axis of the positioning cone cylinder 6 is adjusted to be in a vertical state.

But vertical support pole 9 is the structure that length accurate adjustment, is provided with the electric lift pole in vertical support pole 9's middle section or upper segment inside, and the electric lift pole makes vertical support pole 9 carry out accurate extension and shorten through manual control or remote control's mode to have the locking function, the bottom of vertical support pole 9 sets up to conical, avoids vertical support pole 9 to slide when the side direction atress. After the position of the positioning cone 6 is adjusted, the inner wall of the fixing ring 7 and the outer circumference of the concrete pile head 31 need to be limited in the radial direction, so the invention adopts a limit structure consisting of the electric adjusting seat 10 and the roller 11, and can slide up and down along the outer circumference of the concrete pile head 31 in a certain range while limiting in the radial direction. The electric adjusting seat 10 adopts an electromagnetic driver or an electric telescopic rod, the telescopic end of the electromagnetic driver or the electric telescopic rod is provided with a roller 11, the axis of the roller 11 is vertical to the axis of the fixed ring 7, and the roller 11 is contacted with the annular outer wall of the concrete pile head 31.

The height adjusting assembly mainly comprises a vertical fixing arm 12 and a lifting mechanism, the upper end of the vertical fixing arm 12 is fixed with the bottom or the side face of a fixing ring 7, the lifting mechanism is installed at the lower end of the vertical fixing arm 12, the lifting connecting end of the lifting mechanism is connected and fixed with the cutting stripping chiseling assembly located below, and the position of the cutting stripping chiseling assembly on the concrete pile head 31 is accurately adjusted through the lifting mechanism. The lifting mechanism has various structural forms, for example, a lead screw transmission mode can be adopted, the transmission mode has high motion precision, and accurate height adjustment can be realized. The concrete structure is as follows: elevating system includes step motor 13, lead screw 14, screw nut 15 and mounting bracket, the mounting bracket is installed perpendicularly to the lower extreme of perpendicular fixed arm 12, the upper and lower both ends of mounting bracket are provided with the bearing mount pad, install respectively on the bearing mount pad at screw 14's both ends, screw 14's one end is coaxial fixed with step motor 13's output shaft, step motor 13 installs on perpendicular fixed arm 12 or mounting bracket, install screw nut 15 or take the sliding seat of screw mounting hole on screw 14, screw nut 15 or take the sliding seat of screw mounting hole to be connected fixedly with annular frame 17.

The cutting, stripping and chiseling assembly is used for quickly grooving and hydraulically squeezing and crushing the concrete pile head, and mainly comprises an annular outer frame 17, a hydraulic positioning claw 18, an annular track 20, a gear ring 21, a sliding seat 22, a driving motor 23, a driving gear 24, a hinge shaft 25, a swing arm 26, a swing driving device 27, a cutting machine 28, an annular crushing installation seat 29 and a hydraulic jacking drill rod 19. Annular frame 17 is for being annular cyclic annular metallic structure, adopts the alloy to make or the higher steel structure of intensity makes, has seted up annular rail 20 on annular inner ring of annular frame 17, and the cross section that annular rail 20 was is L type structure, and the annular rail 20 that adopts L type structure is favorable to the installation and the anticreep of sliding seat 22 to go out, and especially when cutting machine 28 cuts the concrete, the great operational environment effect of vibration and impact force is very obvious. An annular groove is formed in the inner annular wall of the outer annular frame 17, an annular rail groove communicated with the annular groove is formed in the outer annular frame 17, the annular groove is perpendicular to the annular rail groove, and a gear ring 21 is embedded in the surface of the annular groove or the surface of the annular rail groove. Install the sliding seat 22 on the circular orbit 20, the internally mounted of sliding seat 22 has driving motor 23, be fixed with drive gear 24 on driving motor 23's the output shaft, drive gear 24 meshes with ring gear 21 mutually, driving motor 23 drives drive gear 24 and rotates accurately, and then drives sliding seat 22 and moves along circular orbit 20 accuracy, sliding seat 22 is at the moving speed of removal in-process and the grooving speed phase-match of cutting machine 28, slide while grooving, realized the quick grooving to the concrete pile head.

An annular crushing mounting seat 29 is arranged on the annular inner wall of the annular outer frame 17, a plurality of mounting holes are uniformly formed in the annular inner wall of the crushing mounting seat 29, hydraulic jacking drill rods 19 are respectively mounted in the mounting holes, and the hydraulic jacking drill rods 19 are connected with hydraulic cylinders located on the inner side. The hydraulic plug drill 19 is made of high-strength alloy steel, and the hydraulic plug drill 19 slowly moves towards the center of the annular outer frame 17 under the action of the inner hydraulic cylinder and generates strong hydraulic crushing force. The hydraulic jacking borers 19 in different directions can hydraulically crush the notches of the concrete pile head 30 which are annularly grooved at the same time, so that a good crushing effect is achieved.

In order to solve the problem that the hydraulic drill-rod 19 faces the annular notch formed in the concrete pile head 30 by cutting through the cutting machine 28, and the cutting machine 28 and the sliding seat 22 need to slide along the circumference of the annular track 20, the hydraulic drill-rod 19 interferes with the cutting machine 28 and the sliding seat 22 in a movement manner, the cutting machine 28 of the invention adopts a turnover movable structure, the cutting machine 28 is in a cutting position when cutting is carried out, and when the hydraulic drill-rod 19 needs to act after cutting is finished, the cutting machine 28 turns to another position to make space for the hydraulic drill-rod 19. Specifically, a swing arm 26 is mounted on one side of the sliding seat 22 close to the center of the annular outer frame 17 through a hinge shaft 25, a cutter 28 is mounted at the outer end of the swing arm 26, the cutter 28 is an electric cutter, and a cutting disc on the cutter 28 faces the center direction of the annular outer frame 17. A swing driving device 27 is installed between the swing arm 26 and the sliding seat 22, the swing driving device 27 is of a small cylinder structure or an electric telescopic rod structure, and the swing arm 26 is driven to swing around the hinge shaft 25 by a certain angle through the extension and contraction of the swing driving device 27, so as to change the position of the cutting machine 28.

In addition, in the process of grooving and crushing, in order to ensure the integral stability of the cutting stripping chiseling assembly and avoid relative rotation and up-and-down sliding between the annular outer frame 17 and the concrete pile head 31 during operation, three or more than three hydraulic positioning claws 18 are symmetrically arranged on the annular inner wall of the annular outer frame 17 and below the annular crushing mounting seat 29, the end parts of the positioning claws, which are close to the annular axial lead of the annular outer frame 17, are provided with conical shapes, the positioning claws are arranged on the telescopic end of a small hydraulic cylinder, and the hydraulic positioning claws 18 can be firmly supported and fixed on the outer circular surface of the concrete pile head 31 under the action of 2 of the small hydraulic cylinder and can be loosened only after grooving and crushing are completed.

While the invention has been described in detail with reference to specific embodiments thereof, it will be apparent to one skilled in the art that various changes and modifications can be made therein without departing from the spirit of the invention.