Tubular pile welding support frame mounted on pile driver

Abstract

The utility model discloses a tubular pile welding supporting frame installed on a pile driver. The tubular pile welding supporting frame comprises a supporting frame body which is installed on the pile driver and can support two prefabricated tubular piles to be oppositely welded. Bottom end plates for axially limiting the prefabricated pipe piles are arranged at the end parts of the bottom ends of the two prefabricated pipe piles supported and welded by the support frame body; the end, provided with a bottom end plate, of the supporting frame body is hinged to one end of the piling machine chassis, the other end of the piling machine chassis is hinged to the tail end of a shell of an oil cylinder used for rotating the horizontal supporting frame body around a hinge point by 0-60 degrees, and the free end of a piston rod of the oil cylinder is hinged to the middle of the length of the supporting frame body. A plurality of pairs of roller assemblies which are used for supporting the two prefabricated pipe piles and enabling the two prefabricated pipe piles to be coaxial so as to facilitate welding are arranged at the inner bottom of the supporting frame body in the length direction at intervals. After the pipe pile welding supporting frame is used for welding the prefabricated pipe pile, the pile planting speed can be greatly increased, and the pile planting quality can be greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to pile foundation construction equipment technical field, specifically is a kind of pipe pile welding support frame installed on pile machine. BACKGROUND

[0002] Some piles in pile foundation engineering need to be pressed to 60-70 meters deep, but a prefabricated pipe pile is usually only 10-15 meters. In the pile planting process of the prior art, after mixing cement soil or rotary jetting cement slurry, the first prefabricated pipe pile is pressed to the predetermined height, then a prefabricated pipe pile is hoisted to be vertically welded and butt-jointed, and then pressed to the predetermined height, then a prefabricated pipe pile is hoisted to be vertically welded and butt-jointed, and so on, until six prefabricated pipe piles are pressed to the predetermined depth. Generally speaking, a 60-70 meter deep pile needs to hoist a prefabricated pipe pile 6 times, vertically align and weld 5 times, and press to plant piles 6 times. However, the above existing construction process has a significant disadvantage: the pile planting speed is relatively slow, the construction efficiency is relatively low, and sometimes the pile planting depth is not in place due to cement slurry solidification, and sometimes it is forced to be in place, which also affects the wrapping of cement slurry on the prefabricated pipe pile, affects the overall performance and carrying capacity of the pile, and needs to be improved. SUMMARY

[0003] The technical problem to be solved by the utility model is to provide a pipe pile welding support frame installed on a pile machine, which can significantly speed up the pile planting speed and significantly improve the pile planting quality after welding prefabricated pipe piles using the pipe pile welding support frame.

[0004] The technical solution of the utility model is to provide a pipe pile welding support frame installed on a pile machine, which includes a support frame body that can support the relative welding of two prefabricated pipe piles.

[0005] The pipe pile welding support frame installed on the pile machine has the following advantages: the pile machine needs to be planted as soon as possible after the cement slurry is sprayed, and the faster the pile is planted, the better the pile effect is. The pipe pile welding support frame can be used to horizontally weld two prefabricated pipe piles, and the pile machine can be used to hoist the two prefabricated pipe piles to the planting position and then plant them by the planting device, so that the planting speed and construction efficiency are greatly improved, and the probability of vertical welding of the plurality of prefabricated pipe piles is greatly reduced. For example, six prefabricated pipe piles can be horizontally welded three times and vertically welded twice, and the welding and planting speed and construction efficiency are further greatly improved. In addition, the welding of the two prefabricated pipe piles can be carried out on the support frame while planting, which further improves the construction efficiency and reduces the construction cost. The prefabricated pipe piles are welded by using the support frame, and then the piles are planted, which can greatly speed up the planting speed and greatly improve the planting quality. The support frame can effectively ensure that the piles can be planted to the predetermined position, and can effectively ensure that the cement slurry has good wrapping performance, good integrity and high bearing capacity on the prefabricated pipe piles.

[0006] Further, the end portion of the support frame body supporting the bottom end of the two prefabricated pipe piles after welding is provided with a prefabricated pipe pile bottom end axial limiting structure; one end of the support frame body provided with an end plate is hinged to one end of the pile machine chassis, the other end of the pile machine chassis is hinged to the tail end of the shell of an oil cylinder for rotating the horizontal support frame body around the hinge point by 0°-60°, and the free end of the piston rod of the oil cylinder is hinged to the middle of the length of the support frame body. After adopting the above structure, horizontal welding is more convenient and faster than vertical welding at 0°, and the two prefabricated pipe piles after welding are driven to 45°-60° by the oil cylinder, so that the process of hoisting the two prefabricated pipe piles after welding by the crane is more convenient and labor-saving, and the condition that the horizontal lifting may cause the welding part of the two prefabricated pipe piles to break is completely avoided.

[0007] Further, the support frame body is a steel truss structure, and the cross section of the support frame body is a character-shaped structure with the opening upward. After adopting the above structure, the support frame body has better supporting force, supporting strength and accommodation for the two prefabricated pipe piles.

[0008] Further, a plurality of roller assemblies for supporting the two prefabricated pipe piles and coaxially arranging the two prefabricated pipe piles to facilitate welding are arranged on the inner bottom of the support frame body along the length direction. After adopting the above structure, the concentricity of the two prefabricated pipe piles to be welded is better, and the welding is more convenient and faster.

[0009] Further, the plurality of pairs of roller assemblies supporting each of the precast pipe piles are two or more pairs, and at least one pair of the two or more pairs of roller assemblies supporting each of the precast pipe piles is a driven roller assembly driven by a motor and a gear to drive a driven roller to roll. With the above structure, the two precast pipe piles can be synchronously and uniformly rotated by the motor and the gear during welding, and can be automatically welded by cooperating with an automatic welding device, thereby further improving the welding speed and further improving the construction efficiency, and further ensuring the welding quality.

[0010] Further, the two pairs of driven roller assemblies supporting each of the precast pipe piles are located adjacent to each other. With the above structure, the two pairs of driven rollers supporting each of the precast pipe piles are close to each other, so that the driven rollers drive the two precast pipe piles to synchronously and uniformly rotate more stably and reliably, and the driving force is stronger.

[0011] Further, the support frame body is parallel to the longitudinal beam of the pile machine chassis. With the above structure, the position of the support frame is more reasonable, thereby further improving the welding speed and further improving the construction efficiency, and further ensuring the welding quality. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 is a structural schematic view of the precast pipe pile welding support frame of the utility model when the embodiment is installed on the pile machine (part of the length of one of the precast pipe piles is omitted, and the steel wire rope and the lifting hook of the crane are omitted in the figure; Figures 1-5 The pin shaft, the roller shaft and the motor shaft are omitted in the figure).

[0013] Figure 2 is a front view structural schematic view of the precast pipe pile welding support frame of the utility model when the embodiment is installed on the pile machine and the support frame body is turned upward about 45° around the pin shaft of the support frame body (other parts of the pile machine except the chassis are omitted).

[0014] Figure 3 is a plan view structural schematic view of the precast pipe pile welding support frame of the utility model when the embodiment is installed on the pile machine and the support frame body is turned to 0° around the pin shaft of the support frame body (other parts of the pile machine except the chassis are omitted).

[0015] Figure 4 is Figure 3 is an enlarged structural schematic view of A in the figure.

[0016] Figure 5 is Figure 3 is an enlarged structural schematic view of B in the figure.

[0017] The figure shows:

[0018] 1, pile machine, 11, chassis, 111, first connecting lug, 1111, first pin hole, 112, longitudinal beam, 113, third connecting lug, 1131, third pin hole, 12, crane, 13, tower;

[0019] 2, precast pipe pile, 21, precast pipe pile bottom end;

[0020] 3, pipe pile welding support frame, 31, support frame body, 311, end frame, 312, bottom plate, 313, third connecting block, 314, second connecting lug, 32, oil cylinder, 321, shell, 3211, first connecting block, 322, piston rod, 3221, second connecting block, 33, roller assembly, 331, driving roller assembly, 3311, motor, 3312, gear box, 3313, driving roller, 3314, motor seat, 332, passive roller assembly, 3321, passive roller seat, 3322, passive roller. DETAILED DESCRIPTION

[0021] The specific embodiments of the present application will be further described below with reference to the drawings. It needs to be declared here that the description of these specific embodiments is used to help understand the present application, but does not constitute a limitation on the present application. In addition, the technical means involved in each specific embodiment of the present application described below can be combined with each other as long as they do not conflict with each other.

[0022] As Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 indicated.

[0023] The prior art pile machine 1 includes a tower 13, a chassis 11, etc., and also has a crane 12 on the pile machine 1.

[0024] The embodiment of the pipe pile welding support frame installed on the pile machine, the pipe pile welding support frame 3 includes a support frame body 31 installed on the pile machine 1 and capable of supporting the relative welding of two precast pipe piles 2.

[0025] The end of the support frame body 31 supporting the bottom end 21 of the two precast pipe piles after welding is provided with a precast pipe pile bottom end axial limiting structure such as an end frame 311. One end of the support frame body 31 provided with the end frame 311 is hinged to one end of the chassis 11 of the pile machine 1, the other end of the chassis 11 of the pile machine 1 is hinged to the tail end of the shell 321 of an oil cylinder 32 for rotating the horizontal support frame body 31 around the hinge point by 0°-60°, and the free end of the piston rod 322 of the oil cylinder 32 is hinged to the middle of the length of the support frame body 31. The chassis 11 is also called a base or a construction platform. The end frame 311 is also called an end bracket or an end plate.

[0026] The hinge is a conventional hinge structure, such as the tail end of the cylinder 32 shell 321 and the free end of the piston rod 322 are provided with respective connecting blocks, such as the first connecting block 3211 and the second connecting block 3221, the support frame body 31 is provided with an end frame 311, one end of the bottom of the end frame 311 is provided with a third connecting block 313; the two hinge positions on the chassis 11 of the pile machine 1 are each provided with a pair of connecting lug plates, such as the first connecting lug plate 111 and the third connecting lug plate 113, the support frame body 31 is provided with a pair of second connecting lug plates 314 in the middle of the length, after the respective connecting blocks are inserted into the respective pairs of connecting lug plates, a respective pin shaft or hinge pin is inserted into a plurality of pin holes in the same axis, such as Figure 2 The first pin hole 1111, the second pin hole 3141 and the third pin hole 1131 can be seen in the middle of the length of the support frame body 31. The pin shaft is axially limited at both ends, such as one end of the pin shaft is a shaft shoulder or a large head, and the other end is provided with an open pin shaft axial limit, or a screw cap or screw axial limit.

[0027] The support frame body 31 can be a steel truss structure, and the cross section of the support frame body 31 can be a open upward H-shaped.

[0028] The inner bottom of the support frame body 31 is provided with a plurality of pairs of roller assemblies 33 for supporting two precast pipe piles 2 and coaxially arranging the two precast pipe piles 2 for welding along the length direction.

[0029] Among the plurality of pairs of roller assemblies 33, the roller assemblies 33 supporting each precast pipe pile 2 are two pairs or more, and at least one pair of the two pairs or more roller assemblies 33 supporting each precast pipe pile 2 is a driven roller assembly 331 driven by a driven roller 3313 in a gear box 3312. Each motor seat 3314 can be fixed, such as bolted or welded, on the bottom frame or bottom plate 312 of the steel truss of the support frame body 31, each motor 3311 is coaxially connected with an input gear in the respective gear box 3312, a center hole of an output gear in the gear box 3312 is coaxially connected with each roller shaft, a center hole of each driven roller 3313 is coaxially connected with each roller shaft, and both ends of each roller shaft are rotatably fitted in two bearing holes of the motor seat 3314. That is, each driven gear 3313 is driven by a respective motor 3311 and a respective gear box 3312. The motor seat 3314 can also be called a driven roller seat. Each passive roller seat 3321 in each pair of passive roller assemblies 332 can be fixed, such as bolted or welded, on the bottom frame or bottom plate 312 of the steel truss of the support frame body 31, and each passive roller 3322 can be rotatably fitted in the bearing hole of the respective passive roller seat 3321 through the respective roller shaft.

[0030] Each pair of driven roller assemblies 331 supporting each precast pipe pile 2 is located at an adjacent position. That is, each pair of driven roller assemblies 331 supporting each precast pipe pile 2 is close to each other.

[0031] The support frame body 31 can be parallel to the longitudinal beam 112 of the pile driver 1 chassis 11.

[0032] There can be four pairs of roller assemblies 33 in total, two pairs of roller assemblies 33 supporting one precast pipe pile 2, and the other two pairs of roller assemblies 33 supporting another precast pipe pile 2. Among them, the two pairs of roller assemblies 33 adjacent in the middle of the support frame body 31 are active roller assemblies 331, and the active rollers 3313 of the two pairs of active roller assemblies 331 rotate synchronously in the same direction. The other pair of roller assemblies 33 at each end of the support frame body 331 is a passive roller assembly 332.

[0033] The above specific embodiments allow for variations, such as, two pairs or more than two pairs of active roller assemblies. In each pair of roller assemblies, one can be an active roller driven by a motor and a gear, and the other can be a passive roller. For example, the shaft of a motor at one end of the support frame body is driven to rotate by a pair of umbrella gears, the shaft extends in the length direction, and one roller on the same side in multiple pairs of rollers is fixed coaxially on the shaft. A motor simultaneously drives all the rollers on the same side to rotate synchronously in the same direction. The other roller in each group is a passive roller. The rotation of the active roller drives the other roller, i.e. the passive roller, in a pair of rollers to rotate through the friction of the precast pipe pile. Of course, the preferred embodiment is the above embodiment except this paragraph.

[0034] The above unmarked parts or structures or quantities not shown in the figure, and some parts not marked in the figure. The drawings are only schematic, and if there is any inconsistency between the drawings and the written description, or between the drawings and each other, the written description shall prevail.

[0035] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A pipe pile welding support frame installed on a pile driver, characterized by: The support frame body is installed on a pile driver and can support two precast pipe piles for opposite welding; The end part of the support frame body supporting the bottom end of the two welded precast pipe piles is provided with a precast pipe pile bottom end axial limiting structure, which is an end frame.

2. A pipe pile welding support frame mounted on a pile driver according to claim 1, characterized in that: The end frame is hinged to one end of the pile driver chassis, and the other end of the pile driver chassis is hinged to the tail end of the shell of an oil cylinder used to rotate the horizontal support frame body around the hinge point by 0°-60°.

3. A pipe pile welding support frame mounted on a bauer according to any one of claims 1-2, characterized in that: The support frame body is a steel truss structure, and the cross section of the support frame body is a open-upward H-shaped frame.

4. A pipe pile welding support frame mounted on a pile driver according to claim 3, characterized in that: The inner bottom of the support frame body is provided with multiple pairs of roller assemblies for supporting the two precast pipe piles and coaxially arranging the two precast pipe piles to facilitate welding along the length direction.

5. A pipe pile welding support frame mounted on a pile driver according to claim 4, characterized in that: Among the multiple pairs of roller assemblies, the roller assemblies supporting each precast pipe pile are two pairs or more, and at least one pair of the two pairs or more roller assemblies supporting each precast pipe pile is a driven roller assembly driven by a motor and a gear driven roller.

6. A pipe pile welding support frame mounted on a pile driver according to claim 1, characterized in that: Each pair of driven roller assemblies supporting each precast pipe pile is located at an adjacent position. The support frame body is parallel to the longitudinal beam of the pile driver chassis.

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