High-frequency vibration tube drawing bench and tube drawing method

Abstract

The invention discloses a high-frequency vibration tube drawing bench and a tube drawing method.The high-frequency vibration tube drawing bench comprises a vibrator, a clamping mechanism, a tube drawing mechanism and a vibration reduction mechanism, the vibrator can be used for being connected with a sleeve, and the clamping mechanism and the tube drawing mechanism are provided with through holes allowing the sleeve to penetrate through. According to the clamping mechanism, due to the fact that the clamping mechanism is provided with the first inclined face and the second inclined face, the moving accuracy of the clamping block can be effectively guaranteed, the clamping block can reliably move the sleeve which is effectively clamped in the through hole through work of the first oil cylinder, and the clamping mechanism can apply force to the sleeve through the clamping block so that it can be guaranteed that the sleeve can be effectively pulled out. In addition, a vibrator is further arranged, the vibrator can apply high-frequency vibration to the casing pipe during pipe pulling, the bonding degree of the casing pipe and concrete in the casing pipe is reduced, the pulling-out difficulty of the casing pipe relative to delayed coagulation soil is effectively reduced, the pipe pulling-out efficiency is improved, and a vibration reduction mechanism is further arranged so that vibration transmitted to the pipe pulling mechanism can be effectively reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of building technology, in particular to a high-frequency vibration pipe pulling machine and a pipe pulling method. BACKGROUND

[0002] In the construction of buildings or bridges, piles are often needed to support. At present, the piles are usually set by pouring concrete in the sleeve, and the pile can be formed after the concrete solidifies. After the concrete is initially shaped in the sleeve, the sleeve often needs to be pulled out, and the pulling out of the sleeve is usually achieved by a pipe pulling machine.

[0003] The existing pipe pulling machine can be connected to the sleeve, and then the sleeve is pulled out by a hydraulic element. However, it is found that during actual pipe pulling, due to the adhesion between the concrete and the sleeve when the concrete solidifies, the pipe pulling machine often has great difficulty in pulling out the sleeve, which is quite time-consuming, and after pulling out, a large amount of concrete is easily brought out, resulting in material shortage of the formed pile and affecting the reliability of the formed pile.

[0004] In addition, the connection reliability of the common pipe pulling machine to the sleeve is difficult to guarantee, and the pipe pulling machine may not be able to fully apply force to the sleeve, affecting the pipe pulling efficiency. SUMMARY

[0005] The purpose of the present application is to provide a high-frequency vibration pipe pulling machine that can solve one or more of the above problems.

[0006] According to one aspect of the present application, a high-frequency vibration pipe pulling machine is provided, comprising a vibrator, a clamping mechanism, a pipe pulling mechanism and a damping mechanism, The vibrator can be used to connect with the sleeve, the clamping mechanism and the pipe pulling mechanism are provided with a through hole for the sleeve to pass through, The clamping mechanism comprises a first oil cylinder, a guide plate, a moving plate, a clamping block and a connecting rod mechanism, the first oil cylinder is connected to the guide plate and connected with the moving plate, the clamping block and the moving plate are connected through the connecting rod mechanism, one side of the clamping block is provided with a clamping part, the other side is provided with a first inclined surface, the guide plate is provided with a second inclined surface, The first oil cylinder can drive the moving plate to move, so that the first inclined surface slides along the second inclined surface to make the clamping block close to or away from the through hole, The damping mechanism comprises a first spring, the guide plate is provided with a first protruding column, the pipe pulling mechanism is provided with a second protruding column, the two ends of the first spring are respectively sleeved on the first protruding column and the second protruding column, one end of the first spring abuts with the guide plate, and the other end abuts with the pipe pulling mechanism.

[0007] The beneficial effects of the high-frequency vibration pipe pulling machine are that: the clamping mechanism in the application can effectively ensure the moving accuracy of the clamping block due to the first and second inclined surfaces, so that the clamping block can be reliably moved and effectively clamped to the casing in the through hole through the work of the first oil cylinder, so that the application can apply force to the casing through the clamping block to ensure the effective pulling of the pipe. Moreover, the application also provides a vibrator, which can apply high-frequency vibration to the casing during pipe pulling to reduce the adhesion degree of the casing and the concrete inside it, effectively reduce the difficulty of pulling out the casing relative to the concrete, improve the pipe pulling efficiency, and reduce the probability of damage to the concrete inside the casing caused by pipe pulling. In addition, a damping mechanism is also provided to effectively dampen the vibration transmitted to the pipe pulling mechanism to reduce damage to the pipe pulling mechanism and improve the working reliability of the pipe pulling mechanism.

[0008] In some embodiments, the pipe pulling mechanism includes a second oil cylinder, a bottom plate and a lifting plate, the second oil cylinder is installed on the lifting plate, and the second oil cylinder is connected with the bottom plate. The second oil cylinder can drive the lifting plate to rise and fall relative to the bottom plate to realize the pipe pulling action.

[0009] In some embodiments, the first oil cylinder includes a first cylinder body and a first piston rod, one end of the first piston rod is arranged in the first cylinder body, the first cylinder body is provided with a first hinge block, the lifting plate is provided with a groove, the groove is provided with a second hinge block, and the first hinge block and the second hinge block are hinged. The first oil cylinder can swing relative to the bottom plate to reduce the probability of damage due to low connection freedom under vibration, and a groove is also provided to limit the swing range of the first oil cylinder to avoid excessive movement of the first oil cylinder.

[0010] In some embodiments, the first piston rod is connected with a third hinge block, the moving plate is connected with a fourth hinge block, and the third hinge block and the fourth hinge block are hinged. In this way, the first piston rod and the moving plate can swing to reduce the probability of damage due to low connection freedom under vibration.

[0011] In some embodiments, the guide plate is sleeved on the first cylinder body. The first cylinder body can be limited by the guide plate to reduce the movement deviation.

[0012] In some embodiments, the second oil cylinder includes a second cylinder body and a second piston rod, the second cylinder body is embedded in the lifting plate, one end of the second piston rod is embedded in the second cylinder body, the other end of the second piston rod is provided with a ball head, the bottom plate is connected with a ball head seat, and the ball head is arranged on the ball head seat. The arrangement of the ball head and the ball head seat can make the second piston rod swing relative to the bottom plate to reduce the probability of damage due to low connection freedom under vibration.

[0013] In some embodiments, the connecting rod mechanism comprises a first connecting rod, a second connecting rod and a third connecting rod, the first connecting rod is connected with the moving plate, the third connecting rod is connected with the clamping block, one end of the second connecting rod is hingedly connected with the first connecting rod, and the other end of the second connecting rod is hingedly connected with the third connecting rod.

[0014] In some embodiments, the damping mechanism comprises a bolt and a second spring, the bolt connects the guide plate and the pipe pulling mechanism, the second spring is sleeved on the bolt, one end of the second spring is in abutment with the guide plate, and the other end of the second spring is in abutment with the pipe pulling mechanism. The bolt can effectively connect the pipe pulling mechanism and the guide plate, and the second spring is further arranged to buffer the vibration transmitted from the guide plate to the pipe pulling mechanism, so as to reduce the vibration received by the pipe pulling mechanism.

[0015] According to one aspect of the present application, a pipe pulling method of a high-frequency vibration pipe pulling machine is provided, comprising the following steps: sleeving the high-frequency vibration pipe pulling machine on the casing pipe in which the concrete is poured, so that the casing pipe passes through the through hole, and connecting the vibrator on the periphery of the casing pipe, starting the first oil cylinder to drive the moving plate to move downward, and the clamping block moves downward correspondingly with the moving plate, and the first inclined surface on the clamping block can slide along the second inclined surface, in the sliding process of the clamping block, the connecting rod mechanism can match the movement of the clamping block, and the clamping block can approach the through hole until the clamping part is fully attached to the casing pipe in the through hole, so as to clamp the casing pipe, starting the vibrator to apply high-frequency vibration to the casing pipe to reduce the adhesion between the casing pipe and the concrete, starting the pipe pulling mechanism to drive the casing pipe clamped by the clamping block to move upward, so as to pull out the casing pipe.

[0016] The pipe pulling method of the high-frequency vibration pipe pulling machine has the beneficial effects that the clamping mechanism clamps the casing pipe in the above manner, which can ensure that the clamping block fully contacts the casing pipe to effectively apply force during subsequent pulling out, and the vibrator is arranged to apply high-frequency vibration, which can effectively reduce the adhesion between the casing pipe and the concrete, thereby reducing the difficulty of pulling out the casing pipe, improving the efficiency of pulling out the casing pipe, and reducing the damage to the concrete.

[0017] In some embodiments, the driving of the clamping block by the pipe pulling mechanism comprises the following steps: starting the second oil cylinder to drive the lifting plate to move upward, and the clamping mechanism connected with the lifting plate also moves upward, i.e., the clamping block moves upward, so as to drive the clamping block. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 FIG. 1 is a structural schematic diagram of a high-frequency vibration pipe pulling machine according to an embodiment of the present application.

[0019] Figure 2A schematic structural view of a high-frequency vibration tube pulling machine according to an embodiment of the present application.

[0020] Figure 3 A schematic structural view of a high-frequency vibration tube pulling machine according to an embodiment of the present application. Figure 2 A sectional view of the high-frequency vibration tube pulling machine according to an embodiment of the present application at A-A.

[0021] Figure 4 A schematic structural view of a high-frequency vibration tube pulling machine according to an embodiment of the present application without a vibrator.

[0022] Figure 5 A front view of a schematic structural view of a high-frequency vibration tube pulling machine according to an embodiment of the present application without a vibrator.

[0023] In the figure: 1. vibrator, 2. clamping mechanism, 3. tube pulling mechanism, 4. damping mechanism, 21. first oil cylinder, 22. guide plate, 23. moving plate, 24. clamping block, 25. connecting rod mechanism, 31. second oil cylinder, 32. bottom plate, 33. lifting plate, 311. second cylinder body, 312. second piston rod, 313. ball head, 321. ball head seat, 331. groove, 332. second hinge block, 333. second protruding column, 10. sleeve, 20. through hole, 211. first cylinder body, 212. first piston rod, 213. first hinge block, 214. third hinge block, 231. fourth hinge block, 221. second inclined surface, 222. first protruding column, 241. clamping part, 242. first inclined surface, 251. first connecting rod, 252. second connecting rod, 253. third connecting rod, 41. first spring, 42. bolt, 43. second spring. DETAILED DESCRIPTION

[0024] The present application will be further described in detail below with reference to the accompanying drawings.

[0025] With reference to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , a high-frequency vibration tube pulling machine according to an embodiment of the present application comprises a vibrator 1, a clamping mechanism 2, a tube pulling mechanism 3 and a damping mechanism 4.

[0026] The vibrator 1 can be used to connect with the sleeve 10, the clamping mechanism 2 and the tube pulling mechanism 3 are respectively provided with a through hole 20 for the sleeve 10 to pass through, and the through holes 20 of the two are communicated.

[0027] The tube pulling mechanism 3 comprises a second oil cylinder 31, a bottom plate 32 and a lifting plate 33. Among them, the second oil cylinder 31 can be multiple, in the embodiment, the second oil cylinder 31 is preferably four, four second oil cylinders 31 are respectively installed on the lifting plate 33, and four second oil cylinders 31 are respectively arranged on four corners of the second oil cylinder 31, and all the second oil cylinders 31 are connected with the bottom plate 32.

[0028] Preferably, in each second oil cylinder 31, the second oil cylinder 31 comprises a second cylinder body 311 and a second piston rod 312, the second cylinder body 311 is fixedly embedded in the lifting plate 33, one end of the second piston rod 312 is embedded in the second cylinder body 311 through a piston, so that the second piston rod 312 can move relative to the second cylinder body 311, the other end of the second piston rod 312 is provided with a ball head 313, and the bottom plate 32 is connected with a ball head seat 321, the number of the ball head seat 321 is corresponding to the number of the second oil cylinder 31, and the ball heads 313 on the four second oil cylinders 31 are rotatably embedded in the four ball head seats 321.

[0029] The clamping mechanism 2 comprises first oil cylinders 21, guide plates 22, moving plates 23, clamping blocks 24 and connecting rod mechanisms 25. The first oil cylinders 21 can be multiple, in the embodiment, the first oil cylinders 21 are preferably four, the four first oil cylinders 21 are respectively connected to the guide plates 22, and the four first oil cylinders 21 are respectively connected to the moving plates 23, and the four first oil cylinders 21 are respectively arranged at four corners of the moving plates 23.

[0030] Preferably, in each first oil cylinder 21, the first oil cylinder 21 comprises a first cylinder body 211 and a first piston rod 212, one end of the first piston rod 212 is slidably embedded in the first cylinder body 211 through a piston, the bottom of the first cylinder body 211 is provided with a first hinge block 213, the lifting plate 33 is provided with grooves 331, the number of the grooves 331 is corresponding to the number of the first oil cylinders 21, each groove 331 is provided with a second hinge block 332, and the first hinge blocks 213 on the four first oil cylinders 21 and the second hinge blocks 332 on the four grooves 331 are respectively hingedly connected through pin shafts. The guide plate 22 is sleeved on all the first cylinder bodies 211.

[0031] In each first oil cylinder 21, the first piston rod 212 is integrally and fixedly connected with a third hinge block 214. The moving plate 3 is connected with multiple fourth hinge blocks 231, the number of the fourth hinge blocks 231 is corresponding to the number of the first oil cylinders 21, and the four third hinge blocks 214 and the four fourth hinge blocks 231 are respectively hingedly connected through pin shafts.

[0032] The clamping block 24 and the moving plate 23 are connected through the connecting rod mechanism 25. Preferably, the connecting rod mechanism 25 can be multiple, in the embodiment, the connecting rod mechanism 25 is eight, and the eight connecting rod mechanisms 25 are uniformly distributed around the center line of the through hole 20. In each connecting rod mechanism 25, the connecting rod mechanism 25 includes a first connecting rod 251, a second connecting rod 252 and a third connecting rod 253, the first connecting rod 251 is integrally connected with the moving plate 23, the third connecting rod 253 is integrally connected with the clamping block 24, and the second connecting rod 252 is hingedly connected with the first connecting rod 251 at one end, and the third connecting rod 253 is hingedly connected with the second connecting rod 252 at the other end. Thus, the movement of the moving plate 23 can drive the clamping block 24 to move through the connecting rod mechanism 25.

[0033] The through hole 20 passes through the clamping block 24, and the inner side of the clamping block 24 is provided with a clamping portion 241, that is, the clamping portion 241 is arranged on the periphery of the through hole 20, and the outer side of the clamping block 24 is provided with a first inclined surface 242, and the through hole 20 also passes through the guide plate 22, and the inner side of the guide plate 22 is provided with a second inclined surface 221, and the first inclined surface 242 is attached to the second inclined surface 221, so that the first inclined surface 242 can slide along the second inclined surface 221, and with the sliding of the first inclined surface 242 on the second inclined surface 221, the clamping block 24 can approach or move away from the through hole 20. In the embodiment, when the first inclined surface 242 slides downward along the second inclined surface 221, the clamping block 24 can approach the through hole 20, and when the first inclined surface 242 slides upward along the second inclined surface 221, the clamping block 24 can approach the through hole 20.

[0034] The guide plate 22 and the lifting plate 33 are connected through the damping mechanism 4. Preferably, the damping mechanism 4 includes a first spring 41, the guide plate 22 is provided with a first protruding column 222, the lifting plate 33 of the pipe pulling mechanism 3 is provided with a second protruding column 333, and the two ends of the first spring 41 are respectively sleeved on the first protruding column 222 and the second protruding column 333, and one end of the first spring 41 abuts against the guide plate 22, and the other end of the first spring 41 abuts against the pipe pulling mechanism 3.

[0035] The damping mechanism 4 can also include a bolt 42 and a second spring 43. The bolt 42 connects the guide plate 22 and the lifting plate 33 of the pipe pulling mechanism 3, and the second spring 43 is sleeved on the bolt 42, one end of the second spring 43 abuts against the guide plate 22, and the other end of the second spring 43 abuts against the lifting plate 33 of the pipe pulling mechanism 3.

[0036] The pipe pulling method of the high-frequency vibration pipe pulling machine includes the following steps: The high-frequency vibration pipe pulling machine can be sleeved on the sleeve pipe 10 with concrete poured inside, so that the sleeve pipe 10 can pass through the through hole 20, and the vibrator 1 can be connected with the periphery of the sleeve pipe 10.

[0037] When the concrete inside the casing 10 is initially set and the casing 10 needs to be pulled out, the first oil cylinder 21 is started, and the first oil cylinder 21 can drive the moving plate 23 to move downward, and the clamping block 24 can move downward correspondingly with the moving plate 23, and the first inclined surface 242 on the clamping block 24 can slide along the second inclined surface 221, and in the sliding process of the clamping block 24, the second connecting rod 252 on the connecting rod mechanism 25 can move correspondingly to match the movement of the clamping block 24, and the clamping block 24 can approach the through hole 20 until the clamping part 241 on the clamping block 24 fully matches the casing 10 in the through hole 20, so as to achieve effective clamping of the casing 10.

[0038] The vibrator 1 is started, and the vibrator 1 applies high-frequency vibration to the casing 10 to reduce the bonding degree of the casing 10 and the initially set concrete inside the casing 10.

[0039] The second oil cylinder 31 is started, and the second oil cylinder 31 can drive the lifting plate 33 to rise, and the clamping mechanism 2 connected with the lifting plate 33 also rises, that is, the clamping block 24 rises, that is, the pulling-out mechanism 3 can drive the casing clamped by the clamping block 24 to rise, so as to realize the pulling-out of the casing 10.

[0040] In addition, in the pulling-out process, the vibration transmitted from the casing 10 to the clamping mechanism 2, when the vibration is transmitted from the clamping mechanism 2 to the lifting plate 33 of the pulling-out mechanism 3, the first spring 41 and the second spring 43 arranged therebetween can buffer the vibration, effectively reducing the vibration transmitted to the lifting plate 33, reducing the damage of the vibration to the lifting plate 33, and improving the working reliability of the lifting plate 33.

[0041] The above only describes some embodiments of the present application. Those skilled in the art can make several modifications and improvements without departing from the inventive concept, and these all belong to the protection scope of the present application.

Claims

1. A high-frequency vibration tube pulling machine, characterized in that, Includes a vibrator, clamping mechanism, tube pulling mechanism, and vibration damping mechanism. The vibrator can be used to connect with the sleeve, and the clamping mechanism and the sleeve pulling mechanism are provided with through holes for the sleeve to pass through. The clamping mechanism includes a first hydraulic cylinder, a guide plate, a movable plate, a clamping block, and a linkage mechanism. The first hydraulic cylinder is connected to the guide plate and the movable plate. The clamping block and the movable plate are connected by the linkage mechanism. The clamping block has a clamping part on one side and a first inclined surface on the other side. The guide plate has a second inclined surface. The first hydraulic cylinder can drive the moving plate to move, so that the first inclined surface slides along the second inclined surface, allowing the clamping block to move closer to or away from the through hole. The vibration damping mechanism includes a first spring, the guide plate is provided with a first protrusion, and the tube pulling mechanism is provided with a second protrusion. The two ends of the first spring are respectively sleeved on the first protrusion and the second protrusion. One end of the first spring abuts against the guide plate, and the other end abuts against the tube pulling mechanism.

2. The high-frequency vibration tube pulling machine according to claim 1, characterized in that, The tube-pulling mechanism includes a second hydraulic cylinder, a base plate, and a lifting plate. The second hydraulic cylinder is mounted on the lifting plate and is connected to the base plate.

3. A high-frequency vibration tube pulling machine according to claim 2, characterized in that, The first cylinder includes a first cylinder body and a first piston rod. One end of the first piston rod is disposed in the first cylinder body. The first cylinder body is provided with a first hinge block. The lifting plate is provided with a groove. A second hinge block is provided on the groove. The first hinge block and the second hinge block are hinged together.

4. A high-frequency vibration tube pulling machine according to claim 3, characterized in that, The first piston rod is connected to a third hinge block, and the movable plate is connected to a fourth hinge block, with the third and fourth hinge blocks being hinged together.

5. A high-frequency vibration tube pulling machine according to claim 3, characterized in that, The guide plate is sleeved on the first cylinder.

6. A high-frequency vibration tube pulling machine according to claim 2, characterized in that, The second cylinder includes a second cylinder body and a second piston rod. The second cylinder body is embedded in the lifting plate. One end of the second piston rod is embedded in the second cylinder body, and the other end of the second piston rod is provided with a ball head. The base plate is connected to a ball head seat, and the ball head is provided on the ball head seat.

7. A high-frequency vibration tube pulling machine according to claim 1, characterized in that, The linkage mechanism includes a first link, a second link, and a third link. The first link is connected to a movable plate, the third link is connected to a clamping block, one end of the second link is hinged to the first link, and the other end of the second link is hinged to the third link.

8. A high-frequency vibration tube pulling machine according to claim 1, characterized in that, The vibration damping mechanism includes a bolt and a second spring. The bolt connects the guide plate and the tube pulling mechanism. The second spring is sleeved on the bolt. One end of the second spring abuts against the guide plate, and the other end abuts against the tube pulling mechanism.

9. A tube-pulling method using a high-frequency vibration tube-pulling machine, characterized in that, Includes the following steps: The high-frequency vibratory pipe pulling machine is fitted onto a sleeve with internal concrete filling, allowing the sleeve to pass through a through hole, and the vibrator is connected to the outside of the sleeve. The first hydraulic cylinder is activated, causing the moving plate to move downwards. As the moving plate moves, the clamping block moves downwards accordingly. Simultaneously, the first inclined surface on the clamping block slides down along the second inclined surface. During the sliding process of the clamping block, the linkage mechanism matches the movement of the clamping block, allowing the clamping block to approach the through hole until the clamping part fully engages with the sleeve inside the through hole, thus achieving clamping of the sleeve. The vibrator is started, applying high-frequency vibration to the casing to reduce adhesion between the casing and the concrete. The tube-pulling mechanism is activated, which drives the sleeve held by the clamping block to rise, thereby pulling out the sleeve.

10. The tube-pulling method of a high-frequency vibration tube-pulling machine according to claim 9, characterized in that, The tube pulling mechanism drives the clamping block through the following steps: When the second hydraulic cylinder is activated, it drives the lifting plate to rise, which in turn raises the clamping mechanism connected to the lifting plate, i.e., the clamping block rises, thus driving the clamping block.

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