Bridge crane large piece hoisting automatic centering device

Abstract

The utility model provides a bridge crane large piece hoisting automatic centering device, which belongs to the technical field of hoisting, and comprises a mounting frame, a first screw rod is rotatably connected in the mounting frame, a first motor is fixed on the outer side wall of the mounting frame, and the driving end of the first motor is fixedly connected with the shaft end of the first screw rod; a first screw rod is arranged in the mounting frame, a moving block is in threaded connection with the first screw rod, two fixed blocks are fixedly connected to the lower end face of the moving block, a second screw rod is rotationally connected between the two fixed blocks, a driving structure is arranged in the mounting frame, and an adjusting block is in threaded connection with the second screw rod. Through the arrangement of the first screw rod, the first motor, the movable block, the fixed block, the second screw rod, the driving structure and the adjusting block, automatic centering adjustment can be rapidly carried out on the position of a bridge crane large piece during hoisting, the installation precision is guaranteed, operation is convenient, the installation efficiency is improved, and the labor intensity of workers is reduced. The problem that in the prior art, fast-reading centering is inconvenient to carry out during hoisting is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of hoisting, and in particular to an automatic centering device for hoisting large bridge cranes. Background Art

[0002] With the increase of large-scale construction projects, the demand for lifting large bridge cranes is increasing. In the process of lifting large bridge cranes, lifting devices are usually used to lift them.

[0003] The following problems exist during the hoisting of large bridge cranes:

[0004] (1) When lifting a large bridge crane, it is inconvenient to quickly align its position during installation. It is very inconvenient to adjust its position by crane, which reduces the efficiency of installation;

[0005] (2) In the prior art, it is inconvenient to quickly clamp and hoist large bridge crane parts during the hoisting process, which results in a long hoisting time and reduces the hoisting efficiency.

[0006] Therefore, we made improvements on this and proposed an automatic centering device for lifting large bridge cranes. Utility Model Content

[0007] The purpose of the utility model is to solve the existing problems that it is inconvenient to quickly center and quickly fix the large bridge crane parts during hoisting.

[0008] In order to achieve the above-mentioned utility model purpose, the utility model provides the following technical solutions:

[0009] An automatic centering device for large-scale lifting of bridge cranes is used to improve the above problems.

[0010] The utility model is specifically as follows:

[0011] The cam is connected with the first and second motors by the threaded connection of the first and second motors, and the cam is connected with the first and second motors by the threaded connection of the first and second motors.

[0012] As a preferred technical solution of the utility model, the driving structure includes a worm fixed at an end of the second screw away from the first screw, the moving block is rotatably connected to an end of the worm close to the worm, a worm wheel meshingly connected to the worm is fixedly connected to the rotating sleeve, a spline shaft is slidably connected to the rotating sleeve, and both ends of the spline shaft are rotatably connected to the mounting frame respectively, a second motor is fixedly connected to the outer wall of the mounting frame, and the driving end of the second motor is fixedly connected to the shaft end of the spline shaft.

[0013] As an optimal technical solution of the utility model, the linkage structure includes driven bevel gears respectively fixed to the front end of the bidirectional screw, connecting pieces are fixedly connected to the two bearing plates, a rotating rod is rotatably connected between the connecting pieces, and two active bevel gears respectively meshing with the driven bevel gears are fixedly connected to the rotating rod, a third motor is fixedly connected to the outer side wall of one of the connecting pieces, and the driving end of the third motor is fixedly connected to the shaft end of the rotating rod.

[0014] As a preferred technical solution of the utility model, the upper end surface of the installation frame is fixedly connected with a hanger, and the upper end surface of the hanger is symmetrical and fixedly connected with two lifting ears.

[0015] As a preferred technical solution of the utility model, a group of reinforcing rods are evenly and fixedly connected in the mounting frame.

[0016] As a preferred technical solution of the utility model, both of the two carrying plates are provided with strip openings, and the width of the strip openings is the same as the width of the slider.

[0017] As a preferred technical solution of the utility model, mounting plates are fixedly connected to the front side wall and the left end side wall of the mounting frame, and the lower end surface of the mounting plate is fixedly connected to a camera.

[0018] As a preferred technical solution of the utility model, an anti-skid pad is fixedly connected to the inner side wall of the clamping plate, and the inner side wall of the anti-skid pad is provided with anti-skid patterns.

[0019] As a preferred technical solution of the utility model, a mounting hole matching the rotating sleeve is provided at one end of the moving block away from the first screw rod, and a mounting opening matching the worm gear is provided on the moving block.

[0020] As a preferred technical solution of the utility model, the upper end surface of the adjusting block is in contact with the lower end surface of the moving block.

[0021] Compared with the prior art, the utility model has the following beneficial effects:

[0022] In the solution of the utility model:

[0023] 1. Through the first screw, the first motor, the moving block, the fixed block, the second screw, the driving structure and the adjusting block, the automatic centering adjustment of the position of the large bridge crane during hoisting is realized, the installation accuracy is guaranteed, the operation is convenient, the installation efficiency is improved, and the problem of inconvenience in quick reading and centering during hoisting in the prior art is solved;

[0024] 2. Through the setting of the load-bearing plate, bidirectional screw, linkage structure, slider and clamp, the large bridge crane parts can be quickly clamped and fixed, the lifting time is shortened and the lifting efficiency is improved, which solves the problem of low lifting efficiency caused by low clamping and fixing efficiency in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the overall structure of the automatic centering device for lifting large parts of a bridge crane provided by the utility model;

[0026] Figure 2 A schematic diagram of the bottom structure of the automatic centering device for lifting large parts of a bridge crane provided by the utility model;

[0027] Figure 3 A schematic diagram of the internal structure of the installation frame of the automatic centering device for lifting large parts of a bridge crane provided by the utility model;

[0028] Figure 4 This is a schematic diagram of the rear structure of the automatic centering device for lifting large parts of a bridge crane provided by the utility model;

[0029] Figure 5 A schematic diagram of the top view of the structure of the automatic centering device for lifting large parts of a bridge crane provided by the utility model;

[0030] Figure 6 The utility model is a schematic diagram of the side structure of the automatic centering device for lifting large bridge crane parts provided by the utility model.

[0031] Indicated in the figure:

[0032] 1. Mounting frame; 2. First screw; 3. First motor; 4. Moving block; 5. Fixed block; 6. Second screw; 7. Driving structure; 701. Worm; 702. Rotating sleeve; 703. Worm gear; 704. Spline shaft; 705. Second motor; 8. Adjusting block; 9. Connecting frame; 10. Mounting frame; 11. Load-bearing plate; 12. Bidirectional screw; 13. Linkage structure; 1301. Driven bevel gear; 1302. Connecting piece; 1303. Rotating rod; 1304. Driving bevel gear; 1305. Third motor; 14. Sliding block; 15. Clamp; 16. Hanging bracket; 17. Lifting ear; 18. Reinforcing rod; 19. Mounting sheet; 20. Camera; 21. Anti-slip pad. DETAILED DESCRIPTION

[0033] To make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments.

[0034] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, this embodiment proposes an automatic centering device for lifting large bridge cranes, including a mounting frame 1, in which a first screw rod 2 is rotatably connected, a first motor 3 is fixed on the outer wall of the mounting frame 1, and a driving end of the first motor 3 is fixedly connected to the axial end of the first screw rod 2, a moving block 4 is threadedly connected to the first screw rod 2, and the first motor 3 drives the first screw rod 2 to rotate so that the moving block 4 can be moved laterally, thereby facilitating adjustment of the lateral position, two fixed blocks 5 are fixedly connected to the lower end surface of the moving block 4, a second screw rod 6 is rotatably connected between the two fixed blocks 5, a driving structure 7 is provided in the mounting frame 1, an adjusting block 8 is threadedly connected to the second screw rod 6, and the movement of the second screw rod 6 causes the adjusting block 8 to move forward and backward, The movement of the movable block 4 can quickly align its installation position, thereby improving the efficiency of hoisting installation. The lower end surface of the adjusting block 8 is fixedly connected to a connecting frame 9, and the bottom end of the connecting frame 9 is fixedly connected to a mounting frame 10. Two bearing plates 11 are symmetrically and fixedly connected in the mounting frame 10, and both bearing plates 11 are rotatably connected with a bidirectional screw 12. A linkage structure 13 is provided on the bearing plate 11 to facilitate driving the two bidirectional screws 12 to rotate at the same time. Two sliders 14 are symmetrically and threadedly connected on the bidirectional screw 12, and the bottom ends of the two sliders 14 are fixedly connected with a clamping plate 15. The rotation of the bidirectional screw 12 can cause the two sliders 14 to move at the same time, thereby causing the clamping plate 15 to move inward at the same time, which is convenient and quick to fix.

[0035] like Figure 1 and Figure 3As shown, as a preferred embodiment, on the basis of the above method, further, the driving structure 7 includes a worm 701 fixed at one end of the second screw 6 away from the first screw 2, and a rotating sleeve 702 is rotatably connected to the end of the moving block 4 close to the worm 701, and a worm wheel 703 meshing with the worm 701 is fixedly connected to the rotating sleeve 702, and a spline shaft 704 is slidably connected in the rotating sleeve 702, and the two ends of the spline shaft 704 are respectively rotatably connected to the mounting frame 1, and a second motor 705 is fixedly connected to the outer wall of the mounting frame 1, and the driving end of the second motor 705 is fixedly connected to the shaft end of the spline shaft 704; the spline shaft 704 is rotated by the second motor 705, and then the rotating sleeve 702 and the worm wheel 703 are rotated, and then the worm 701 is driven to rotate, and then the second screw 6 can be rotated, so that the position of the adjustment block 8 can be adjusted conveniently.

[0036] like Figure 1 and Figure 5 As shown, as a preferred embodiment, on the basis of the above-mentioned method, further, the linkage structure 13 includes driven bevel gears 1301 respectively fixed at the front ends of the two-way screw rods 12, and connecting pieces 1302 are fixedly connected to the two bearing plates 11, and a rotating rod 1303 is rotatably connected between the connecting pieces 1302, and two active bevel gears 1304 respectively meshing with the driven bevel gears 1301 are fixedly connected to the rotating rod 1303, and a third motor 1305 is fixedly connected to the outer wall of one of the connecting pieces 1302, and the driving end of the third motor 1305 is fixedly connected to the shaft end of the rotating rod 1303; the rotating rod 1303 is rotated by the third motor 1305, and the rotation of the rotating rod 1303 causes the active bevel gear 1304 to rotate, thereby driving the driven bevel gear 1301 to rotate, and then the two two-way screw rods 12 are rotated at the same time, which is convenient for driving and reduces costs.

[0037] like Figure 1 and Figure 4 As shown, as a preferred embodiment, based on the above method, further, the upper end surface of the mounting frame 1 is fixedly connected with a hanger 16, and the upper end surface of the hanger 16 is symmetrical and fixedly connected with two lifting ears 17, so as to facilitate connection with external lifting equipment.

[0038] like Figure 1 and Figure 2 As shown, as a preferred embodiment, on the basis of the above-mentioned manner, further, a group of reinforcing rods 18 are evenly and fixedly connected inside the mounting frame 10, which can improve the strength of the mounting frame 10 and improve the stability.

[0039] like Figure 1As shown, as a preferred embodiment, based on the above method, further, both supporting plates 11 are provided with strip openings, and the width of the strip openings is the same as the width of the slider 14, so as to facilitate the sliding of the slider 14.

[0040] like Figure 1 and Figure 2 As shown, as a preferred embodiment, on the basis of the above-mentioned method, further, the front side wall and the left end side wall of the mounting frame 10 are fixedly connected with mounting plates 19, and the lower end surface of the mounting plates 19 is fixedly connected with a camera 20; the camera 20 is convenient for the hoisting personnel to check the position of the hoisting parts, thereby facilitating the rapid centering adjustment of the position of the hoisting parts.

[0041] like Figure 1 and Figure 6 As shown, as a preferred embodiment, on the basis of the above method, further, the inner wall of the clamping plate 15 is fixedly connected with an anti-skid pad 21, and the inner wall of the anti-skid pad 21 is provided with anti-skid grooves; the friction force during the clamping process can be increased, thereby improving the stability of the lifting.

[0042] like Figure 3 As shown, as a preferred embodiment, on the basis of the above method, further, a mounting hole matching the rotating sleeve 702 is provided at one end of the moving block 4 away from the first screw 2, and a mounting opening matching the worm gear 703 is provided on the moving block 4, so as to facilitate installation and assembly.

[0043] like Figure 3 As shown, as a preferred embodiment, on the basis of the above method, further, the upper end surface of the adjusting block 8 is in contact with the lower end surface of the moving block 4, so that the adjusting block 8 can move stably, thereby facilitating stable adjustment of the position of the connecting frame 9.

[0044] Specifically, when the automatic centering device for lifting large parts of a bridge crane is working / in use: the lifting lug 17 is connected to the crane equipment, the mounting frame 10 is moved to the mounting position, and then the third motor 1305 is driven to rotate the rotating rod 1303. The rotation of the rotating rod 1303 rotates the active bevel gear 1304, thereby driving the driven bevel gear 1301 and the bidirectional screw 12 to rotate, and then the slider 14 and the clamping plate 15 are moved inward at the same time, so as to clamp and fix the large part of the bridge crane, and then lift it. To make the installation position; when the position of the large bridge crane needs to be centered, start the first motor 3 to rotate the first screw 2, so that the moving block 4 is rotated, and then the position of the mounting frame 10 is moved laterally, start the second motor 705 to rotate the spline shaft 704, and then the rotating sleeve 702 and the worm gear 703 are rotated, and then the worm 701 and the second screw 6 are driven to rotate, so that the position of the adjustment block 8 is moved forward and backward, which is convenient and fast to perform automatic centering and improve the efficiency of lifting and installation.

[0045] All technical features in this embodiment can be freely combined according to actual needs.

[0046] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the protection scope of the present invention.

Claims

1. An automatic centering device for lifting large bridge cranes, comprising a mounting frame (1), characterized in that: A first screw rod (2) is rotatably connected in the installation frame (1), a first motor (3) is fixed on the outer wall of the installation frame (1), and the driving end of the first motor (3) is fixedly connected to the axial end of the first screw rod (2), a moving block (4) is threadedly connected on the first screw rod (2), two fixed blocks (5) are fixedly connected to the lower end surface of the moving block (4), a second screw rod (6) is rotatably connected between the two fixed blocks (5), a driving structure (7) is provided in the installation frame (1), and an adjusting screw rod (6) is threadedly connected to the second screw rod (6). The adjusting block (8) is fixedly connected to a connecting frame (9) on the lower end surface of the adjusting block (8), and a mounting frame (10) is fixedly connected to the bottom end of the connecting frame (9), and two bearing plates (11) are symmetrically and fixedly connected in the mounting frame (10), and two bidirectional screw rods (12) are rotatably connected in the two bearing plates (11), and a linkage structure (13) is provided on the bearing plates (11), and two sliding blocks (14) are symmetrically and threadedly connected on the bidirectional screw rod (12), and the bottom ends of the two sliding blocks (14) are fixedly connected to a clamping plate (15).

2. The automatic centering device for lifting large bridge cranes according to claim 1 is characterized in that: The driving structure (7) comprises a worm (701) fixed to an end of the second screw (6) away from the first screw (2); a rotating sleeve (702) is rotatably connected to the end of the moving block (4) close to the worm (701); a worm wheel (703) meshingly connected to the worm (701) is fixedly connected to the rotating sleeve (702); a spline shaft (704) is slidably connected to the rotating sleeve (702), and both ends of the spline shaft (704) are rotatably connected to the mounting frame (1) respectively; a second motor (705) is fixedly connected to the outer wall of the mounting frame (1), and a driving end of the second motor (705) is fixedly connected to the shaft end of the spline shaft (704).

3. The automatic centering device for lifting large bridge cranes according to claim 1 is characterized in that: The linkage structure (13) comprises driven bevel gears (1301) respectively fixed to the front ends of the bidirectional screw rod (12); the two bearing plates (11) are fixedly connected with connecting pieces (1302); a rotating rod (1303) is rotatably connected between the connecting pieces (1302); the rotating rod (1303) is fixedly connected with two driving bevel gears (1304) respectively meshing with the driven bevel gears (1301); a third motor (1305) is fixedly connected to the outer wall of one of the connecting pieces (1302); and the driving end of the third motor (1305) is fixedly connected to the shaft end of the rotating rod (1303).

4. The automatic centering device for lifting large bridge cranes according to claim 1 is characterized in that: The upper end surface of the installation frame (1) is fixedly connected to a hanger (16), and the upper end surface of the hanger (16) is symmetrical and fixedly connected to two lifting ears (17).

5. The automatic centering device for lifting large bridge cranes according to claim 1 is characterized in that: A group of reinforcing rods (18) are evenly and fixedly connected inside the mounting frame (10).

6. The automatic centering device for lifting large bridge cranes according to claim 1 is characterized in that: The two carrying plates (11) are both provided with a strip opening, and the width of the strip opening is the same as the width of the sliding block (14).

7. The automatic centering device for lifting large bridge cranes according to claim 1 is characterized in that: A mounting plate (19) is fixedly connected to the front side wall and the left end side wall of the mounting frame (10), and a camera (20) is fixedly connected to the lower end surface of the mounting plate (19).

8. The automatic centering device for lifting large bridge cranes according to claim 1 is characterized in that: The inner side walls of the clamping plates (15) are fixedly connected with anti-skid pads (21), and the inner side walls of the anti-skid pads (21) are provided with anti-skid patterns.

9. The automatic centering device for lifting large bridge cranes according to claim 1 is characterized in that: An installation hole matching the rotating sleeve (702) is provided at one end of the moving block (4) away from the first screw rod (2), and an installation opening matching the worm gear (703) is provided on the moving block (4).

10. The automatic centering device for lifting large bridge cranes according to claim 1 is characterized in that: The upper end surface of the adjusting block (8) contacts the lower end surface of the moving block (4).

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