Cutting and crushing device in hollow pipe pile

Abstract

The invention relates to a cutting and crushing device in a hollow pipe pile. The cutting and crushing device comprises a driving mechanism, a fixing mechanism and high-pressure water jet equipment, the fixing mechanism is connected to the driving mechanism and can abut against and be fixed to the inner wall of a pipe pile under driving of the driving mechanism. The high-pressure water jet equipment is connected to the driving mechanism; under cooperation of the driving mechanism and the fixing mechanism, the high-pressure water jet cutting device has the capacity of moving and cutting in the axial direction of the hollow pipe pile, the problem that the fixing position of high-pressure water jet equipment needs to be changed multiple times when the hollow pipe pile is completely cut is solved, the cutting complexity degree of the hollow pipe pile is reduced, and the cutting efficiency is improved. The cutting efficiency of the hollow pipe pile is improved, in addition, the cut-off part of the hollow pipe pile can be crushed into a plurality of fan-shaped fragments through the cutting step of longitudinal cutting and then annular cutting so as to adapt to the deslagging capacity of deslagging equipment, the cutting and deslagging smoothness in the cutting and crushing process of the hollow pipe pile is guaranteed, and subsequent shield tunneling is facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, in particular to a hollow pipe pile internal cutting and crushing device. Background Art

[0002] With the rapid development of cities, the importance attached to the development and utilization of underground space is constantly increasing. In the process of construction and renewal of urban underground space, using the shield method to dig tunnels through existing pipe piles is a critical and complex task, which can easily cause the shield machine to be shut down for a long time or significantly slow down the advancement speed. Therefore, before the shield machine contacts the pipe pile group, it is necessary to crush the pipe piles at the position where the shield machine passes.

[0003] When the high-pressure water jet device in the existing crushing equipment is used for cutting hollow pipe piles, it needs to be fixed inside the hollow pipe pile before the operation. Since the cutting head of the fixed high-pressure water jet device can only rotate 360° around the central axis, it can only complete the circular cutting operation of the hollow pipe pile in the plane where the cutting head is located. However, one circular cutting cannot meet the conditions for partial cutting of the hollow pipe pile. It is necessary to change the fixing position of the high-pressure water jet device at least twice to complete a complete hollow pipe pile cutting operation. There is no doubt that there are problems of cumbersome construction and low construction efficiency. Summary of the invention

[0004] The purpose of the present invention is to overcome the defects of the prior art and provide a hollow pipe pile internal cutting and crushing device to solve the problems of cumbersome operation and low efficiency when the high-pressure water jet device in the prior art is used for hollow pipe pile cutting.

[0005] To achieve the above-mentioned purpose, the present invention provides a hollow pipe pile internal cutting and crushing device, comprising a driving mechanism, a fixing mechanism and a high-pressure water jet device;

[0006] The fixing mechanism is connected to the driving mechanism and can be abutted against and fixed to the inner wall of the pipe pile under the driving of the driving mechanism;

[0007] The high-pressure water jet device is connected to the driving mechanism and can move along the axial direction of the pipe pile under the drive of the driving mechanism.

[0008] By adopting this technical solution, after the driving mechanism is lowered to the specified position inside the hollow pipe pile, the driving mechanism drives the fixing mechanism, and the driving mechanism and the high-pressure water jet equipment connected to the driving mechanism can be fixed inside the hollow pipe pile. The driving mechanism can drive the high-pressure water jet equipment to move axially along the hollow pipe pile, which solves the problem that the high-pressure water jet equipment needs to change the fixed position many times when used for hollow pipe pile cutting, reduces the cumbersomeness of the hollow pipe pile cutting operation, and increases the efficiency of hollow pipe pile cutting. In addition, with the high-pressure water jet equipment's own ring cutting function, the hollow pipe pile cut-off part can be broken into several fan-shaped fragments through the cutting steps of longitudinal cutting first and then ring cutting, so as to adapt to the slag discharge capacity of the slag discharge equipment, and ensure the smoothness of cutting and slag discharge during the cutting and crushing process of the hollow pipe pile; the height adjustment function of the high-pressure water jet equipment brought by the driving mechanism can also adapt to the precise ring cutting of the local position of the hollow pipe pile.

[0009] Furthermore, the driving mechanism includes a double-outlet shaft rod, a double-outlet combined cylinder body and a hollow cylinder rod;

[0010] The double-exit shaft rod is configured to be hollow;

[0011] The double-outlet combined cylinder body is sleeved on the outer side of the double-outlet shaft rod and can move bidirectionally along the double-outlet shaft rod under oil pressure control;

[0012] The hollow oil cylinder rod is arranged between the end of the double-outlet combined cylinder body and the double-outlet shaft rod, and can move bidirectionally along the double-outlet shaft rod at the end of the double-outlet combined cylinder body under oil pressure control.

[0013] By adopting this technical solution, the double-output shaft rod and the double-output combined cylinder body constitute a group of cylinder structures. By controlling the oil pressure and oil supply direction between the double-output shaft rod and the double-output combined cylinder body, the double-output shaft rod and the double-output combined cylinder body can be moved relative to each other, providing a prerequisite for individually controlling the axial movement of the high-pressure water jet equipment along the hollow pipe pile; the double-output combined cylinder body and the hollow cylinder rod are another group of cylinder structures. By controlling the oil pressure between the double-output combined cylinder body and the hollow cylinder rod, the hollow cylinder rod and the double-output combined cylinder body can be moved relative to each other, providing a prerequisite for individually controlling the fixing mechanism.

[0014] Furthermore, it also includes a hanging device for suspending the driving mechanism;

[0015] The hanging device comprises a hanging head and a hanging rope;

[0016] The lifting head is connected to the top of the double-outlet combined cylinder body through the lifting rope;

[0017] The hanging ropes are evenly arranged along the bottom of the hanging head.

[0018] By adopting this technical solution, the hanging device can quickly lower the triple cylinder to the required height through the cooperation of the hanging head and the hanging rope; and the stability of the triple cylinder suspended under the hanging head is increased by setting a number of hanging ropes.

[0019] Furthermore, the high-pressure water jet device is connected to the inside of the double-outlet shaft, and the cutting head of the existing high-pressure water jet device extends from the bottom end to the outside of the double-outlet shaft.

[0020] By adopting this technical solution, the connection of the high-pressure water jet device to the driving mechanism is achieved, while ensuring that the driving mechanism does not affect the cutting operation of the high-pressure water jet device.

[0021] Further, the fixing mechanism includes a swing rod and a support rod;

[0022] One end of the swing rod is rotatably connected to the outer side of one end of the hollow oil cylinder rod away from the double-outlet combined cylinder body, the middle part of the swing rod is rotatably connected to one end of the support rod, and the other end of the support rod is rotatably connected to the end of the double-outlet combined cylinder body at the corresponding position;

[0023] The inner angle formed by the swing rod and the support rod is an acute angle.

[0024] By adopting this technical solution, when the hollow cylinder rod moves away from the double-outlet combination cylinder body under the control of oil pressure, the swing arm rotatably connected thereon can flip outward under the limiting action of the strut, and the corresponding action inside the hollow pipe pile is to extend outward and abut against the inner wall of the hollow pipe pile, thereby achieving the purpose of fixing inside the hollow pipe pile; when the hollow cylinder rod moves toward the double-outlet combination cylinder body under the control of oil pressure, the swing arm rotatably connected thereon can flip inward under the limiting action of the strut, and the corresponding action inside the hollow pipe pile is to shrink inward and separate from the inner wall of the hollow pipe pile, thereby releasing the state of being fixed to the hollow pipe pile; the inner angle formed by the swing arm and the strut is set to an acute angle to avoid the formation of a flipping dead angle and ensure the smoothness of the swing arm flipping back and forth.

[0025] Furthermore, the end surface of the swing rod away from the end connected to the hollow cylinder rod is an arc-shaped irregular surface.

[0026] By adopting this technical solution, the friction force of the end face of the swing rod is increased, and a larger friction force is provided when the swing rod abuts against the inner wall of the hollow pipe pile, thereby increasing the fixing effect of the device.

[0027] Furthermore, the fixing mechanism is evenly distributed along the circumferential direction between the hollow oil cylinder rod and the double-outlet combined cylinder body.

[0028] By adopting this technical solution, the support rod fixing mechanism evenly distributed along the circumference can center and fix the driving mechanism. On the one hand, it realizes automatic centering of the high-pressure water jet equipment and can perform targeted cutting on the pipe pile joints. On the other hand, it can increase the stability of the driving mechanism fixed inside the hollow pipe pile.

[0029] Furthermore, a wire pull sensor is installed on the double-exit shaft rod.

[0030] By adopting this technical solution, a wire pull sensor is set to measure the movement stroke of the double-outlet shaft rod relative to the double-outlet combined cylinder body, that is, the movement stroke of the high-pressure water jet equipment, thereby improving the accuracy of the axial position control of the high-pressure water jet equipment along the hollow pipe pile to meet the needs of high-precision cutting.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] 1. With the cooperation of the driving mechanism and the fixing mechanism, the high-pressure water jet cutting device enables the high-pressure water jet equipment to move and cut along the axial direction of the hollow pipe pile, solving the problem that the fixing position of the high-pressure water jet equipment needs to be changed many times for complete cutting of the hollow pipe pile, reducing the cumbersomeness of cutting the hollow pipe pile and increasing the cutting efficiency of the hollow pipe pile. In addition, the cut part of the hollow pipe pile can be broken into several fan-shaped fragments through the cutting steps of longitudinal cutting first and then circular cutting to adapt to the slag discharge capacity of the slag discharge equipment, ensuring the smoothness of cutting and slag discharge during the cutting and crushing process of the hollow pipe pile, which is beneficial to the subsequent shield excavation.

[0033] 2. The fixing mechanism is evenly distributed around the driving mechanism. After the fixing mechanism performs corresponding actions under the action of the driving mechanism, the device can be centrally fixed inside the hollow pipe pile, and the pipe pile joint can be cut in a targeted manner.

[0034] 3. The fixing mechanism is an outward-turning structure, which can adapt to the inner diameter of the hollow pipe pile within a certain range, ensure the rapid fixation of the device inside the hollow pipe pile to be cut, and increase the applicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is an overall schematic diagram of the hollow pipe pile internal cutting and crushing device of the present invention after being placed horizontally;

[0036] Figure 2 It is a schematic diagram of the driving mechanism of the hollow pipe pile cutting and crushing device of the present invention after being placed horizontally;

[0037] Figure 3 for Figure 2 Middle AA section view;

[0038] Figure 4 It is an enlarged schematic diagram of the fixing mechanism in the hollow pipe pile cutting and crushing device of the present invention;

[0039] Figure 5 This is a schematic diagram of the cutting and crushing device in the hollow pipe pile of the present invention first cutting longitudinally and leaving a gap;

[0040] Figure 6 It is a schematic diagram of the cutting and crushing device in the hollow pipe pile of the present invention performing annular cutting and leaving seams;

[0041] Figure 7 It is a schematic diagram of the fragments formed after the hollow pipe pile is cut and crushed by the internal cutting and crushing device of the hollow pipe pile of the present invention.

[0042] Explanation of the accompanying reference numerals: 1.1, hanging device; 1.2, high-pressure water jet equipment; 1.3, driving mechanism; 1.4, fixing mechanism; 1.5, pull-wire sensor; 2.1, double-outlet shaft rod; 2.2, double-outlet combined cylinder body; 2.3, hollow cylinder rod; 2.4, support rod; 2.5, rocker arm. DETAILED DESCRIPTION

[0043] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0044] Please see attached Figure 1-4 The present invention provides a hollow pipe pile internal cutting and crushing device, comprising a hanging device 1.1, a high-pressure water jet device 1.2, a driving mechanism 1.3 and a fixing mechanism 1.4; wherein the hanging device 1.1 suspends the driving mechanism 1.3; the high-pressure water jet device 1.2 is connected to the driving mechanism 1.3, and can move along the axial direction of the pipe pile under the drive of the driving mechanism 1.3; the fixing mechanism 1.4 is connected to the driving mechanism 1.3, and can be abutted and fixed against the inner wall of the pipe pile under the drive of the driving mechanism 1.3;

[0045] The hanging device 1.1 cooperates with the lifting equipment to lower the driving mechanism 1.3 connected with the high-pressure water jet device 1.2 and the fixing mechanism 1.4 to the specified position inside the hollow pipe pile. The driving mechanism 1.3 drives the fixing mechanism 1.4 to fix the driving mechanism 1.3 and the high-pressure water jet device 1.2 connected to the driving mechanism 1.3 inside the hollow pipe pile. The driving mechanism 1.3 drives the high-pressure water jet device 1.2 to move along the axial direction of the hollow pipe pile, which solves the problem that the high-pressure water jet device 1.2 needs to change the fixed position many times when used for hollow pipe pile cutting, reduces the cumbersomeness of the hollow pipe pile cutting operation, and increases the efficiency of hollow pipe pile cutting. In addition, please refer to the attached Figure 5-7, in conjunction with the self-circumferential cutting function of the high-pressure water jet equipment 1.2, the cut-off part of the hollow pipe pile can be broken into several fan-shaped fragments through the cutting steps of longitudinal cutting first and then circular cutting, so as to adapt to the slag discharge capacity of the slag discharge equipment and ensure the smoothness of cutting and slag discharge during the cutting and crushing process of the hollow pipe pile; the height adjustment function of the high-pressure water jet equipment 1.2 brought by the driving mechanism 1.3 can also adapt to the precise circular cutting of the local position of the hollow pipe pile.

[0046] In order to further reduce the particle size of the broken part of the hollow pipe pile, the rotation angle of the cutting head of the high-pressure water jet equipment 1.2 before each longitudinal cutting can be reduced, so as to increase the number of longitudinal cutting times driven by the driving mechanism 1.3 during one circumferential rotation of the cutting head, thereby achieving the purpose of reducing the broken particle size.

[0047] Furthermore, the driving mechanism 1.3 includes a double-output shaft rod 2.1, a double-output combined cylinder body 2.2 and a hollow oil cylinder rod 2.3; wherein the double-output shaft rod 2.1 is set to be hollow; the double-output combined cylinder body 2.2 is sleeved on the outside of the double-output shaft rod 2.1, and can move bidirectionally along the double-output shaft rod 2.1 under oil pressure control, and the double-output shaft rod 2.1 and the double-output combined cylinder body 2.2 constitute a group of oil cylinder structures, and by controlling the oil pressure and oil supply direction between the double-output shaft rod 2.1 and the double-output combined cylinder body 2.2, the double-output shaft rod 2.1 and the double-output combined cylinder body 2.2 can be relatively moved, providing a prerequisite for individually controlling the high-pressure water jet equipment 1.2 to move along the axial direction of the hollow pipe pile;

[0048] The hollow oil cylinder rod 2.3 is arranged between the end of the double-outlet combined cylinder body 2.2 and the double-outlet shaft rod 2.1, and can move bidirectionally along the double-outlet shaft rod 2.1 at the end of the double-outlet combined cylinder body 2.2 under oil pressure control; the double-outlet combined cylinder body 2.2 and the hollow oil cylinder rod 2.3 are another set of oil cylinder structures, and the hollow oil cylinder rod 2.3 and the double-outlet combined cylinder body 2.2 can be moved relative to each other by controlling the oil pressure between the double-outlet combined cylinder body 2.2 and the hollow oil cylinder rod 2.3, providing a prerequisite for separately controlling the fixing mechanism 1.4;

[0049] It should be noted that the cylinder structure oil circuit formed by the double-outlet shaft rod 2.1 and the double-outlet combined cylinder body 2.2 and the cylinder structure oil circuit formed by the double-outlet combined cylinder body 2.2 and the hollow cylinder rod 2.3 are independent of each other.

[0050] Furthermore, the hanging device 1.1 includes a hanging head and a hanging rope; the hanging head is connected to the top of the double-outlet combined cylinder 2.2 through the hanging rope, and the hanging head and the hanging rope cooperate to enable the hanging device 1.1 to quickly lower the driving mechanism 1.3 to a required height;

[0051] A plurality of suspension ropes are evenly arranged along the bottom of the suspension head, and the stability of the driving mechanism 1.3 suspended below the suspension head is increased by arranging a plurality of suspension ropes.

[0052] Furthermore, the high-pressure water jet device 1.2 is connected to the inside of the double-outlet shaft 2.1, and the cutting head of the existing high-pressure water jet device 1.2 extends from the bottom end to the outside of the double-outlet shaft 2.1, thereby realizing the connection of the high-pressure water jet device 1.2 on the driving mechanism 1.3, while ensuring that the driving mechanism 1.3 does not affect the cutting operation of the high-pressure water jet device 1.2.

[0053] Furthermore, the fixing mechanism 1.4 includes a swing rod 2.5 and a strut 2.4; wherein one end of the swing rod 2.5 is rotatably connected to the outer side of one end of the hollow oil cylinder rod 2.3 away from the double-outlet combined cylinder body 2.2, the middle part of the swing rod 2.5 is rotatably connected to one end of the strut 2.4, and the other end of the strut 2.4 is rotatably connected to the end of the double-outlet combined cylinder body 2.2 at the corresponding position. When the hollow oil cylinder rod 2.3 moves away from the double-outlet combined cylinder body 2.2 under the control of oil pressure, the swing rod 2.5 rotatably connected thereto can move on the strut 2.4. .4, and the corresponding action inside the hollow pipe pile is to extend outward and abut against the inner wall of the hollow pipe pile, so as to achieve the purpose of fixing inside the hollow pipe pile; when the hollow cylinder rod 2.3 moves close to the double-outlet combined cylinder body 2.2 under the control of oil pressure, the swing rod 2.5 rotatably connected thereto can be turned inward under the limiting action of the support rod 2.4, and the corresponding action inside the hollow pipe pile is to shrink inward and separate from the inner wall of the hollow pipe pile, so as to release the state of being fixed to the hollow pipe pile;

[0054] The inner angle formed by the swing rod and the support rod is an acute angle. Setting the inner angle formed by the swing rod and the support rod as an acute angle can avoid the occurrence of a flipping dead angle and ensure the smoothness of the swing rod flipping back and forth.

[0055] Furthermore, the end face of the swing rod away from the hollow cylinder rod 2.3 is an arc-shaped irregular surface, which increases the friction of the swing rod end face and provides greater friction when the swing rod abuts against the inner wall of the hollow pipe pile, thereby increasing the fixing effect of the device.

[0056] Furthermore, a plurality of fixing mechanisms 1.4 are evenly distributed along the circumferential direction between the hollow cylinder rod 2.3 and the double-outlet combined cylinder body 2.2. The support rod fixing mechanisms 1.4 evenly distributed along the circumferential direction can center and fix the driving mechanism 1.3. On the one hand, it realizes the automatic centering of the high-pressure water jet equipment 1.2 and can perform targeted cutting on the pipe pile joints. On the other hand, it can increase the stability of the driving mechanism 1.3 fixed inside the hollow pipe pile.

[0057] Furthermore, a pull-wire sensor 1.5 is installed on the double-outlet shaft rod 2.1. The pull-wire sensor 1.5 is provided to measure the movement stroke of the double-outlet shaft rod 2.1 relative to the double-outlet combined cylinder body 2.2, that is, the movement stroke of the high-pressure water jet equipment 1.2, so as to improve the accuracy of the axial position control of the high-pressure water jet equipment 1.2 along the hollow pipe pile to meet the high-precision cutting requirements.

[0058] The present invention is described in detail above in conjunction with the embodiments of the accompanying drawings. A person skilled in the art can make various variations of the present invention according to the above description. Therefore, certain details in the embodiments should not constitute a limitation of the present invention, and the scope of protection of the present invention shall be defined by the scope of the attached claims.

Claims

1. A hollow pipe pile internal cutting and crushing device, characterized in that: It includes a driving mechanism, a fixing mechanism and a high-pressure water jet device; The fixing mechanism is connected to the driving mechanism and can be abutted against and fixed to the inner wall of the pipe pile under the driving of the driving mechanism; The high-pressure water jet device is connected to the driving mechanism and can move along the axial direction of the pipe pile under the drive of the driving mechanism.

2. The hollow pipe pile internal cutting and crushing device according to claim 1, characterized in that: The driving mechanism comprises a double-outlet shaft rod, a double-outlet combined cylinder body and a hollow cylinder rod; The double-exit shaft rod is configured to be hollow; The double-outlet combined cylinder body is sleeved on the outer side of the double-outlet shaft rod and can move bidirectionally along the double-outlet shaft rod under oil pressure control; The hollow oil cylinder rod is arranged between the end of the double-outlet combined cylinder body and the double-outlet shaft rod, and can move bidirectionally along the double-outlet shaft rod at the end of the double-outlet combined cylinder body under oil pressure control.

3. The high-pressure water jet cutting device for hollow pipe piles according to claim 2 is characterized in that: Also included is a hanging device for suspending the driving mechanism; The hanging device comprises a hanging head and a hanging rope; The lifting head is connected to the top of the double-outlet combined cylinder body through the lifting rope; The hanging ropes are evenly arranged along the bottom of the hanging head.

4. The hollow pipe pile internal cutting and crushing device according to claim 2, characterized in that: The high-pressure water jet device is connected to the inside of the double-outlet shaft rod, and the cutting head of the existing high-pressure water jet device extends from the bottom end to the outside of the double-outlet shaft rod.

5. The hollow pipe pile internal cutting and crushing device according to claim 2, characterized in that: The fixing mechanism includes a swing rod and a support rod; One end of the swing rod is rotatably connected to the outer side of one end of the hollow oil cylinder rod away from the double-outlet combined cylinder body, the middle part of the swing rod is rotatably connected to one end of the support rod, and the other end of the support rod is rotatably connected to the end of the double-outlet combined cylinder body at the corresponding position; The inner angle formed by the swing rod and the support rod is an acute angle.

6. The hollow pipe pile internal cutting and crushing device according to claim 5, characterized in that: The end surface of the swing rod away from the end connected to the hollow cylinder rod is an arc-shaped irregular surface.

7. The hollow pipe pile internal cutting and crushing device according to claim 2, characterized in that: The fixing mechanism is evenly arranged along the circumferential direction between the hollow oil cylinder rod and the double-outlet combined cylinder body.

8. The hollow pipe pile internal cutting and crushing device according to claim 2, characterized in that: A wire pulling sensor is installed on the double-exit shaft rod.

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