Steel pipe pile hoisting and positioning device

Abstract

The utility model discloses a steel pipe pile hoisting and positioning device which comprises a pair of moving frames, the moving frames are distributed front and back, a positioning cylinder is rotationally connected to the middle between the moving frames, a driving device connected with the positioning cylinder is installed on the front portion of the moving frame on the front side, and a pair of supports are fixed to the upper side and the lower side of the left end and the right end of the positioning cylinder respectively. A roller is rotationally connected between the interiors of each pair of supports, and shaft rods are fixed to the front end and the rear end of each roller. Compared with the prior art, the steel pipe pile positioning device has the advantages that the rollers are arranged, the second motor on the upper side drives the rollers to rotate clockwise, the second motor on the lower side drives the rollers to rotate anticlockwise, and when a worker inserts a steel pipe pile into the positioning cylinder, the upper roller and the lower roller are in contact friction with the steel pipe pile; and the steel pipe pile is leftwards input into the positioning cylinder, so that manual force application can be reduced, and the working efficiency of workers is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of infrastructure engineering, in particular to a steel pipe pile hoisting and positioning device. Background Art

[0002] Post - grouting of cast - in - place piles means that after a certain period of time after the cast - in - place piles are formed, cement slurry is injected through the grouting ducts preset in the pile body and the pile - end and pile - side grouting valves connected thereto, so that the soil bodies at the pile end and pile side (including sediment and mud skin) are reinforced, thereby improving the bearing capacity of a single pile and reducing settlement.

[0003] In the patent with the publication number CN220950881U, a steel pipe pile hoisting and positioning device is disclosed. In order to prevent the end of the steel pipe pile inserted into the positioning cylinder from being pulled out when one end of the steel pipe pile is lifted during the hoisting process, a positioning bolt is provided. After the end of the steel pipe pile is inserted into the positioning cavity of the positioning cylinder, the positioning bolt is screwed inward to limit the end of the steel pipe pile in the positioning cavity by the positioning bolt. Then when the steel pipe pile is lifted and erected, the end of the steel pipe pile will be inside the positioning cylinder and can rotate around the frame through the positioning cylinder and the rotating shaft. After the steel pipe pile is erected, the positioning bolt is loosened so that the inner end of the positioning bolt retracts into the screw hole, and then the steel pipe pile can be lowered and inserted into the corresponding hole position without affecting the installation of the steel pipe pile, which improves the safety and stability of the steel pipe pile hoisting and reduces potential safety hazards.

[0004] However, when the above - mentioned steel pipe pile hoisting and positioning device makes the steel pipe pile enter the inside of the positioning cylinder, it is necessary to manually push the steel pipe pile in entirely. Because the weight of the steel pipe pile is still relatively heavy, relying entirely on manual force to push it in is more or less laborious. Summary of the Utility Model

[0005] The technical problem to be solved by the utility model is to overcome the above - mentioned technical defects and provide a steel pipe pile hoisting and positioning device.

[0006] To solve the above problems, the technical solution of the utility model is: a steel pipe pile hoisting and positioning device, including a moving frame. There are a pair of the moving frames which are distributed front and back. A positioning cylinder is rotatably connected to the middle between the moving frames. A driving device connected to the positioning cylinder is installed at the front part of the front - side moving frame. A pair of supports are fixed to the upper and lower sides of the left and right ends of the positioning cylinder. A roller is rotatably connected between each pair of supports. Shaft rods are fixed to the front and rear ends of the roller, and the ends of the shaft rods are connected to the supports through bearings. A second motor is fixedly installed at the front part of the right - front support, and the output shaft of the second motor is fixed to the shaft rod. A chain - sprocket assembly is installed at the rear part of the rear - side support, and the chain - sprocket assembly is connected to the shaft rod. Positioning components are installed on the upper and lower sides of the positioning cylinder.

[0007] Furthermore, rollers are installed on both the left and right sides of the lower end of the moving frame.

[0008] Furthermore, rotating shafts are fixed in the middle of the front and rear ends of the positioning cylinder, and the ends of the rotating shafts are movably penetrated through the moving frame.

[0009] Furthermore, the driving device includes a worm and worm gear reducer and a first motor. The worm and worm gear reducer is fixedly installed on the moving frame. The first motor is installed on the surface of the worm and worm gear reducer. The output shaft of the first motor is connected to the input shaft of the worm and worm gear reducer, and the output shaft of the worm and worm gear reducer is fixed to the end of the rotating shaft.

[0010] Furthermore, the chain and sprocket assembly includes sprockets and a chain. The sprockets are fixed to the shaft rods, and a chain is connected between the sprockets at the same horizontal level on the left and right.

[0011] Furthermore, the positioning assembly includes a nut, a screw rod, a handwheel, and a pressing plate. The nut is fixed to the positioning cylinder. The screw rod is threadedly connected inside the nut. The inner end of the screw rod penetrates into the positioning cylinder and is fixed to the pressing plate. The handwheel is fixed to the outer end of the screw rod.

[0012] The advantages of the present utility model compared with the existing technology are as follows:

[0013] 1. In this application, by setting the rollers, the second motor on the upper side drives the rollers to rotate clockwise, and the second motor on the lower side drives the rollers to rotate counterclockwise. When the worker inserts the steel pipe pile into the positioning cylinder, the upper and lower rollers contact and friction with the steel pipe pile, and the steel pipe pile is input into the positioning cylinder to the left, which can reduce the manual force and improve the work efficiency of the worker.

[0014] 2. In this application, by setting the positioning assembly, when the steel pipe pile is inserted into the positioning cylinder to the appropriate position, rotate the handwheel. The handwheel drives the screw rod to rotate. As the screw rod is threadedly engaged with the nut, the screw rod drives the pressing plate to clamp the steel pipe pile, which is also convenient for positioning the steel pipe pile in the positioning cylinder, thus facilitating the hoisting and positioning of the steel pipe pile. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the overall structural view of the present utility model;

[0016] Figure 2 is the rear view structural view of the positioning cylinder of the present utility model;

[0017] Figure 3 is the structural view of the screw rod of the present utility model;

[0018] Figure 4 is the structural view of the roller of the present utility model.

[0019] Description of the reference numerals:

[0020] 1. Mobile frame; 2. Worm and worm gear reducer; 3. First motor; 4. Positioning cylinder; 5. Support; 6. Roller; 7. Nut; 8. Screw rod; 9. Handwheel; 10. Second motor; 11. Shaft rod; 12. Sprocket; 13. Chain; 14. Rotating shaft; 15. Pressure plate; 16. Rubber pad; 17. Moving wheel. Specific embodiments

[0021] The specific embodiments of the present utility model will be further described below in conjunction with the accompanying drawings. Among them, the same components are denoted by the same reference numerals.

[0022] It should be noted that the terms "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the accompanying drawings, and the terms "inner" and "outer" refer to the directions towards or away from the geometric center of a specific component, respectively.

[0023] In order to make the content of the present utility model easier to be clearly understood, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model.

[0024] Please refer to Figures 1 to 4 , the present utility model provides a technical solution:

[0025] A steel pipe pile hoisting and positioning device, including a mobile frame 1. Rollers 6 are installed on both the left and right sides of the lower end of the mobile frame 1. There are a pair of mobile frames 1 distributed front and rear. A positioning cylinder 4 is rotatably connected to the middle between the mobile frames 1. Rotating shafts 14 are fixed in the middle of the front and rear ends of the positioning cylinder 4. The ends of the rotating shafts 14 are movably penetrated through the mobile frames 1. A driving device connected to the positioning cylinder 4 is installed at the front of the front mobile frame 1. A pair of supports 5 are fixed on the upper and lower sides of the left and right ends of the positioning cylinder 4. Rollers 6 are rotatably connected between each pair of supports 5. Shaft rods 11 are fixed at both the front and rear ends of the rollers 6. The ends of the shaft rods 11 are connected to the supports 5 by bearings. A second motor 10 is fixedly installed at the front of the right front support 5. The output shaft of the second motor 10 is fixed to the shaft rod 11. A chain and sprocket assembly is installed at the rear of the rear support 5. The chain and sprocket assembly is connected to the shaft rod 11. The chain and sprocket assembly includes a sprocket 12 and a chain 13. The sprocket 12 is fixed to the shaft rod 11. A chain 13 is connected between the sprockets 12 at the same left and right horizontal levels. Positioning components are installed on both the upper and lower sides of the positioning cylinder 4.

[0026] By adopting the above technical solution, the driving device can be used to rotate the positioning cylinder 4 to the horizontal. Then, when the steel pipe pile is inserted into the positioning cylinder 4, the second motor 10 on the upper side drives the roller 6 to rotate clockwise, and the second motor 10 on the lower side drives the roller 6 to rotate counterclockwise. Moreover, the two rollers 6 on the upper side rotate synchronously through the chain and sprocket assembly, and the two rollers 6 on the lower side rotate synchronously through the chain and sprocket assembly. In this way, the upper and lower rollers 6 contact and friction with the steel pipe pile, and input the steel pipe pile to the left into the positioning cylinder 4, which can reduce the manual force and improve the working efficiency of the workers.

[0027] Specifically, as Figures 1 - 2 shown, the driving device includes a worm and worm gear reducer 2 and a first motor 3. The worm and worm gear reducer 2 is fixedly installed with the moving frame 1, the first motor 3 is installed on the surface of the worm and worm gear reducer 2, the output shaft of the first motor 3 is connected to the input shaft of the worm and worm gear reducer 2, and the output shaft of the worm and worm gear reducer 2 is fixed to the end of the rotating shaft 14.

[0028] By adopting the above technical solution, the transmission of the first motor 3 and the worm and worm gear reducer 2 can be utilized to drive the output shaft of the worm and worm gear reducer 2 to drive the rotating shaft 14 to rotate, so that the rotating shaft 14 will drive the positioning cylinder 4 to rotate.

[0029] Specifically, as Figures 1 - 3 shown, the positioning component includes a nut 7, a screw rod 8, a hand wheel 9, and a pressing plate 15. The nut 7 is fixed to the positioning cylinder 4, the screw rod 8 is threadedly connected inside the nut 7, the inner end of the screw rod 8 penetrates into the positioning cylinder 4 and is fixed to the pressing plate 15, the hand wheel 9 is fixed to the outer end of the screw rod 8, and a rubber pad 16 is fixedly connected to the lower end of the pressing plate 15.

[0030] By adopting the above technical solution, when the steel pipe pile is inserted into the positioning cylinder 4 to a suitable position, the hand wheel 9 can be rotated. The hand wheel 9 drives the screw rod 8 to rotate. As the screw rod 8 is in threaded cooperation with the nut 7, the screw rod 8 drives the pressing plate 15 to clamp the steel pipe pile. At the same time, the rubber pad 16 is in close contact with the steel pipe pile, so that it is also convenient to position the steel pipe pile in the positioning cylinder 4, thus facilitating the hoisting and positioning of the steel pipe pile.

[0031] Working principle: By utilizing the transmission between the first motor 3 and the worm and worm gear reducer 2, the output shaft of the worm and worm gear reducer 2 drives the rotating shaft 14 to rotate. In this way, the rotating shaft 14 drives the positioning cylinder 4 to rotate until the positioning cylinder 4 rotates to the horizontal position. Then, when the steel pipe pile is inserted into the positioning cylinder 4, the second motor 10 on the upper side drives the roller 6 to rotate clockwise, and the second motor 10 on the lower side drives the roller 6 to rotate counterclockwise. Moreover, the two rollers 6 on the upper side rotate synchronously through the chain and sprocket assembly, and the two rollers 6 on the lower side rotate synchronously through the chain and sprocket assembly. In this way, the upper and lower rollers 6 contact and friction with the steel pipe pile, and input the steel pipe pile to the left into the positioning cylinder 4, which can reduce the manual force application and improve the working efficiency of the workers. When the steel pipe pile is inserted into the positioning cylinder 4 to the appropriate position, rotate the handwheel 9, and the handwheel 9 drives the screw rod 8 to rotate. As the screw rod 8 is in threaded engagement with the nut 7, the screw rod 8 drives the pressing plate 15 to clamp the steel pipe pile. At the same time, the rubber pad 16 is in close contact with the steel pipe pile, which is also convenient for positioning the steel pipe pile in the positioning cylinder 4, thus facilitating the hoisting and positioning of the steel pipe pile.

[0032] The above describes the present invention and its implementation manners. Such description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present invention, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and design similar structural manners and embodiments without creative work without departing from the creative purpose of the present invention, they shall fall within the protection scope of the present invention.

Claims

1. A steel pipe pile hoisting and positioning device, characterized in that: It includes a moving frame (1), there are a pair of the moving frames (1) and they are distributed front and back. A positioning cylinder (4) is rotatably connected to the middle between the moving frames (1). A driving device connected to the positioning cylinder (4) is installed at the front part of the front moving frame (1). It is characterized in that: A pair of supports (5) are fixed on the upper and lower sides of the left and right ends of the positioning cylinder (4). A roller (6) is rotatably connected between the interiors of each pair of supports (5). Shaft rods (11) are fixed at both the front and back ends of the roller (6). The ends of the shaft rods (11) are connected to the supports (5) by bearings. A second motor (10) is fixedly installed at the front part of the right front support (5). The output shaft of the second motor (10) is fixed to the shaft rod (11). A chain and sprocket assembly is installed at the rear part of the rear support (5). The chain and sprocket assembly is connected to the shaft rod (11). Positioning components are installed on both the upper and lower sides of the positioning cylinder (4).

2. The steel pipe pile hoisting and positioning device according to claim 1, characterized in that: Rollers (6) are installed on both the left and right sides at the lower end of the moving frame (1).

3. The steel pipe pile hoisting and positioning device according to claim 1, characterized in that: Rotating shafts (14) are fixed in the middle of the front and back ends of the positioning cylinder (4). The ends of the rotating shafts (14) pass through the moving frame (1) movably.

4. A steel pipe pile hoisting and positioning device according to claim 1, characterized in that: The driving device includes a worm and worm gear reducer (2) and a first motor (3). The worm and worm gear reducer (2) is fixedly installed on the moving frame (1). The first motor (3) is installed on the surface of the worm and worm gear reducer (2). The output shaft of the first motor (3) is connected to the input shaft of the worm and worm gear reducer (2). The output shaft of the worm and worm gear reducer (2) is fixed to the end of the rotating shaft (14).

5. The steel pipe pile hoisting and positioning device according to claim 1, wherein: The chain and sprocket assembly includes sprockets (12) and a chain (13). The sprockets (12) are fixed to the shaft rods (11). The chain (13) is connected between the sprockets (12) at the same horizontal level on the left and right.

6. The hoisting and positioning device for steel pipe piles according to claim 1, wherein: The positioning component includes a nut (7), a screw rod (8), a handwheel (9), and a pressing plate (15). The nut (7) is fixed to the positioning cylinder (4). The screw rod (8) is threadedly connected inside the nut (7). The inner end of the screw rod (8) penetrates into the positioning cylinder (4) and is fixed to the pressing plate (15). The handwheel (9) is fixed to the outer end of the screw rod (8).

7. The steel pipe pile hoisting and positioning device according to claim 6, characterized in that: A rubber pad (16) is fixedly connected to the lower end of the pressing plate (15).

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