Connecting structure between crane end beams

Abstract

The utility model provides a connecting structure between crane end beams, which relates to the technical field of crane end beams and comprises an end beam body, a connecting piece is arranged at the top of the end beam body, and two groups of first threaded holes are formed in the top of the end beam body. During installation, a worker rotates a rotating shaft and a second bevel gear according to the position of a first threaded hole, then the first bevel gear and a second threaded rod are driven to rotate, a sliding block pushes a U-shaped plate to move along one end of the second threaded rod and a moving plate, then the worker pulls a moving block, and the moving block drives a third threaded rod to rotate; and when the third threaded rod moves to the position above the first threaded hole, the worker rotates the grab handle, the third threaded rod descends along the second threaded hole until the bottom of the third threaded rod makes contact with the interior of the first threaded hole, fixing can be completed in this way, the position of the third threaded rod can be conveniently adjusted according to the position of the first threaded hole, and the use range is widened.

Description

Technical Field

[0001] The utility model relates to the technical field of crane end beams, in particular to a connection structure between crane end beams. Background Art

[0002] Crane end beams are devices that support moving objects. Wheels are installed at both ends of the end beams to support the bridge on the elevated structure. Tracks are welded to the main beams for the crane trolley to operate. Crane end beams require a connecting structure. However, existing crane end beam connection structures require pre-matching before connection, which reduces connection speed. Furthermore, existing crane end beam connection structures cannot be positioned correctly, which can easily cause connection offset.

[0003] In the prior art, such as Chinese Patent CN 216072748 U, a connection structure between crane end beams is disclosed. The structure comprises an end beam, a connecting device installed in the middle of the top of the end beam, an outer wall of a screw rod threadedly connected to the inner wall of a circular block, a semicircular block fixedly connected to the outer side of each circular block, and a cross bar with a clearance fit between the outer and inner walls of each semicircular block. The connection structure between the crane end beams, through the cooperation between the end beam and the connecting device, according to the position of the threaded hole on the end beam, causes the block to drive the semicircular blocks on both sides to move left and right along the outer wall of the corresponding cross bar in the curved plate, and adjust the position of the screw rod. After the position of the screw rod is adjusted, the screw rods on both sides are rotated to move downward in the corresponding circular block. The screw rods on both sides move downward and connect with the threaded holes at appropriate positions on both sides of the end beam, thereby connecting the end beam to the connecting member. The screw rods can arbitrarily match the threaded holes on the end beam, thereby improving the connection speed. This solves the problem of existing connection structures between crane end beams, which require pre-matching before connection, which reduces the connection speed. However, this patent still has the following problems.

[0004] In the above patent, although the patent can drive the semicircular blocks on both sides to move left and right on the outer wall of the corresponding cross bar in the curved plate according to the position of the threaded hole on the end beam, and adjust the position of the screw rod so that the screw rod moves above the threaded hole, the screw rod can only move forward and backward along the cross bar and cannot move left and right. If the threaded hole is not below the curved plate, it may be difficult for the screw rod to enter the threaded hole, thereby affecting the connection. Utility Model Content

[0005] The purpose of the utility model is to solve the problem in the prior art that the screw rod can only move forward and backward along the cross bar but cannot move left and right. If the threaded hole is not below the curved plate, it may be difficult for the screw rod to enter the threaded hole, thereby affecting the connection. A connection structure between the end beams of the crane is proposed.

[0006] The top of the second gear is fixedly provided with a toothed connecting strip which is cooperatively connected with the toothed connecting strip, and the toothed connecting strip is connected with the toothed connecting strip respectively.

[0007] Preferably, two fixing plates are fixedly installed on the outer wall of the end beam body, a first threaded rod is rotatably installed between the two fixing plates, one end of the first threaded rod passes through the fixing plate and is fixedly installed with a handle, and two slides are threadedly connected to the outer wall of the first threaded rod.

[0008] Preferably, a limiting rod is fixedly installed between the two fixing plates, and the limiting rod passes through the two sliding plates and is slidably connected to the sliding plates.

[0009] Preferably, a fixing groove is provided at one end of the handle close to the fixing plate, and a third threaded hole is provided through the inner wall of the fixing groove.

[0010] Preferably, a fourth threaded rod is threadedly connected to the inner wall of the third threaded hole, a stop block is fixedly mounted on one end of the fourth threaded rod, and a rotating column is fixedly mounted on the end of the fourth threaded rod away from the stop block.

[0011] Preferably, support plates are fixedly mounted on the tops of the two slides, plug rods are fixedly mounted on opposite sides of the two support plates, and fixing rings are fixedly mounted on both sides of the outside of the connecting piece.

[0012] Preferably, the first threaded rod is provided with two sections of threads with opposite textures, and the first threaded rod is connected to the two slides respectively through the two sections of threads with opposite textures.

[0013] Compared with the prior art, the advantages and positive effects of the present invention are:

[0014] 1. In the utility model, during installation, the staff rotates the rotating shaft according to the position of the first threaded hole, the second bevel gear rotates, and then drives the first bevel gear to rotate, and the second threaded rod rotates, so that the slider moves along one end of the second threaded rod, and the moving plate pushes the U-shaped plate to move. Then the staff pulls the moving block, and the moving block drives the third threaded rod to rotate. When the third threaded rod moves to above the first threaded hole, the staff rotates the handle, and the third threaded rod descends along the second threaded hole until the bottom of the third threaded rod contacts the first threaded hole. In this way, the fixation is completed, and the position of the third threaded rod is conveniently adjusted according to the position of the first threaded hole, thereby improving the scope of use.

[0015] 2. In the present invention, when the connection is completed, the staff rotates the rotating column, and the fourth threaded rod rotates, so that the fourth threaded rod moves along the third threaded hole, thereby driving the stop block to move. When the stop block contacts the fixed plate, the pressure exerted by the stop block on the fixed plate increases the friction between the two, thereby fixing the handle, preventing external force from accidentally touching the handle after the end beam body is connected to the connecting piece, which may cause the insertion rod to leave the fixing ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model provides an overall three-dimensional diagram of a connection structure between the end beams of a crane;

[0017] Figure 2 A cross-sectional view of a connecting member of a connecting structure between end beams of a crane is provided for the utility model;

[0018] Figure 3 A three-dimensional diagram of a fixing ring of a connection structure between end beams of a crane is proposed for the utility model;

[0019] Figure 4 The utility model provides a cross-sectional view of a handle of a connection structure between end beams of a crane.

[0020] Legend: 1. End beam body; 2. Connector; 3. First threaded hole; 4. Fixed plate; 5. First threaded rod; 6. Limit rod; 7. Handle; 8. Slide plate; 9. Slide groove; 10. Storage groove; 11. Second threaded rod; 12. Slider; 13. First bevel gear; 14. Moving plate; 15. U-shaped plate; 16. Second bevel gear; 17. Rotating rod; 18. Rotating shaft; 19. Fixed rod; 20. Moving block; 21. Second threaded hole; 22. Third threaded rod; 23. Handle; 24. Support plate; 25. Insert rod; 26. Fixed ring; 27. Fixed groove; 28. Third threaded hole; 29. ​​Fourth threaded rod; 30. Block; 31. Rotating column. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0023] Example 1, as Figures 1-4 As shown, the utility model provides a connection structure between the end beams of a crane, including an end beam body 1, a connecting member 2 is provided on the top of the end beam body 1, two groups of first threaded holes 3 are opened on the top of the end beam body 1, two chute 9 are provided inside the connecting member 2, and second threaded rods 11 are rotatably installed inside the two chute 9. The outer wall of the second threaded rod 11 is threadedly connected to a slider 12, and a movable plate 14 is fixedly installed at the bottom of the slider 12. One end of the movable plate 14 passes through the chute 9 and is fixedly installed with a U-shaped plate 15. Two storage grooves 10 are provided inside the connecting member 2, and one end of the second threaded rod 11 passes through the chute 9 and enters the storage groove 10. A first bevel gear 13 is fixedly installed, and a second bevel gear 16 is rotatably installed inside the two storage slots 10. The first bevel gear 13 is meshed with the second bevel gear 16. A rotating rod 17 is fixedly installed on the top of the second bevel gear 16. The top of the rotating rod 17 passes through the connecting piece 2 and is fixedly installed with a rotating shaft 18. Two fixed rods 19 are fixedly installed on the inner walls of the two U-shaped plates 15. A moving block 20 is slidably installed on the outer walls of the two fixed rods 19. A second threaded hole 21 is penetrated through the top of the moving block 20. A third threaded rod 22 is rotatably installed inside the second threaded hole 21, and a handle 23 is fixedly installed on the top of the third threaded rod 22.

[0024] The effect achieved by the entire embodiment 1 is that during installation, the staff rotates the rotating shaft 18 according to the position of the first threaded hole 3, the second bevel gear 16 rotates, and then drives the first bevel gear 13 to rotate, and the second threaded rod 11 rotates, so that the slider 12 moves along one end of the second threaded rod 11, and the movable plate 14 pushes the U-shaped plate 15 to move, and then the staff pulls the movable block 20, and the movable block 20 drives the third threaded rod 22 to rotate. When the third threaded rod 22 moves to above the first threaded hole 3, the staff rotates the handle 23, and the third threaded rod 22 descends along the second threaded hole 21 until the bottom of the third threaded rod 22 contacts the first threaded hole 3, so that the fixation is completed, which makes it convenient to adjust the position of the third threaded rod 22 according to the position of the first threaded hole 3, thereby improving the scope of use.

[0025] Example 2, as Figures 1-4As shown, further, two fixing plates 4 are fixedly installed on the outer wall of the end beam body 1, and a first threaded rod 5 is rotatably installed between the two fixing plates 4. One end of the first threaded rod 5 passes through the fixing plate 4 and is fixedly installed with a handle 7. The outer wall of the first threaded rod 5 is threadedly connected to two slides 8.

[0026] Furthermore, a limiting rod 6 is fixedly installed between the two fixing plates 4 , and the limiting rod 6 passes through the two slide plates 8 and is slidably connected to the slide plates 8 .

[0027] Furthermore, a fixing groove 27 is formed at one end of the handle 7 close to the fixing plate 4 , and a third threaded hole 28 is formed through the inner wall of the fixing groove 27 .

[0028] Furthermore, a fourth threaded rod 29 is threadedly connected to the inner wall of the third threaded hole 28 , a stop block 30 is fixedly mounted on one end of the fourth threaded rod 29 , and a rotating column 31 is fixedly mounted on the end of the fourth threaded rod 29 away from the stop block 30 .

[0029] Furthermore, support plates 24 are fixedly installed on the tops of the two slides 8, plug rods 25 are fixedly installed on opposite sides of the two support plates 24, and fixing rings 26 are fixedly installed on both sides of the outside of the connecting member 2.

[0030] Furthermore, the first threaded rod 5 is provided with two sections of threads with opposite textures, and the first threaded rod 5 is connected to the two slides 8 respectively through the two sections of threads with opposite textures. When the first threaded rod 5 rotates, the two slides 8 will approach or move away from each other.

[0031] The effect achieved by the entire embodiment 2 is that, when the connection is completed, the staff rotates the rotating column 31, and the fourth threaded rod 29 rotates, so that the fourth threaded rod 29 moves along the third threaded hole 28, thereby driving the block 30 to move. When the block 30 contacts the fixed plate 4, the pressure exerted by the block 30 on the fixed plate 4 increases the friction between the two, thereby fixing the handle 7, preventing external force from accidentally touching the handle 7 after the end beam body 1 is connected to the connecting member 2, which may cause the insertion rod 25 to leave the fixing ring 26.

[0032] Working principle: During installation, the staff places the connecting piece 2 on the end beam body 1, rotates the handle 7, and the first threaded rod 5 rotates, thereby driving the two slides 8 to approach each other until the two insertion rods 25 respectively enter the two fixing rings 26, so that the connecting piece 2 is fixed in the middle position of the end beam body 1. Then the staff rotates the rotating column 31, and the fourth threaded rod 29 rotates, so that the fourth threaded rod 29 moves along the third threaded hole 28, thereby driving the block 30 to move. When the block 30 contacts the fixed plate 4, the pressure exerted by the block 30 on the fixed plate 4 increases the friction between the two, thereby fixing the handle 7 to prevent external force from accidentally touching the handle 7 after the end beam body 1 is connected to the connecting piece 2, which may cause the insertion rod 25 to leave the fixing ring 26. Finally, the staff rotates the rotating shaft 18 according to the position of the first threaded hole 3, and the second bevel gear 16 rotates, thereby driving the first bevel gear 13 to rotate, and the second threaded rod 11 rotates, so that the slider 12 moves along one end of the second threaded rod 11, and the movable plate 14 pushes the U-shaped plate 15 to move. Then the staff pulls the movable block 20, and the movable block 20 drives the third threaded rod 22 to rotate. When the third threaded rod 22 moves to above the first threaded hole 3, the staff rotates the handle 23, and the third threaded rod 22 descends along the second threaded hole 21 until the bottom of the third threaded rod 22 contacts the first threaded hole 3. In this way, the fixation is completed, which makes it convenient to adjust the position of the third threaded rod 22 according to the position of the first threaded hole 3, thereby improving the scope of use.

[0033] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A connection structure between crane end beams, comprising an end beam body (1), characterized in that: The end beam body (1) is provided with a connecting piece (2) at the top, and two groups of first threaded holes (3) are provided at the top of the end beam body (1). Two chute grooves (9) are provided inside the connecting piece (2), and a second threaded rod (11) is rotatably installed inside the two chute grooves (9). The outer wall of the second threaded rod (11) is threadedly connected to a slider (12), and a movable plate (14) is fixedly installed at the bottom of the slider (12). One end of the movable plate (14) passes through the chute groove (9) and is fixedly installed with a U-shaped plate (15). Two storage grooves (10) are provided inside the connecting piece (2), and one end of the second threaded rod (11) passes through the chute groove (9) and enters the storage groove (10) and is fixedly installed with a first bevel gear (13). A second bevel gear (16) is rotatably mounted inside the two storage slots (10), the first bevel gear (13) is meshedly connected to the second bevel gear (16), a rotating rod (17) is fixedly mounted on the top of the second bevel gear (16), the top of the rotating rod (17) passes through the connecting member (2) and is fixedly mounted with a rotating shaft (18), two fixed rods (19) are fixedly mounted on the inner walls of the two U-shaped plates (15), and a moving block (20) is slidably mounted on the outer walls of the two fixed rods (19), a second threaded hole (21) is penetrated through the top of the moving block (20), a third threaded rod (22) is rotatably mounted inside the second threaded hole (21), and a handle (23) is fixedly mounted on the top of the third threaded rod (22).

2. The connection structure between crane end beams according to claim 1, characterized in that: Two fixing plates (4) are fixedly mounted on the outer wall of the end beam body (1); a first threaded rod (5) is rotatably mounted between the two fixing plates (4); one end of the first threaded rod (5) passes through the fixing plates (4) and is fixedly mounted with a handle (7); and the outer wall of the first threaded rod (5) is threadedly connected to two slide plates (8).

3. The connection structure between crane end beams according to claim 2, characterized in that: A limiting rod (6) is fixedly installed between the two fixed plates (4), and the limiting rod (6) passes through the two slide plates (8) and is slidably connected to the slide plates (8).

4. The connection structure between crane end beams according to claim 2, characterized in that: A fixing groove (27) is provided at one end of the handle (7) close to the fixing plate (4), and a third threaded hole (28) is provided through the inner wall of the fixing groove (27).

5. The connection structure between crane end beams according to claim 4, characterized in that: A fourth threaded rod (29) is threadedly connected to the inner wall of the third threaded hole (28), a stop block (30) is fixedly mounted on one end of the fourth threaded rod (29), and a rotating column (31) is fixedly mounted on one end of the fourth threaded rod (29) away from the stop block (30).

6. The connection structure between crane end beams according to claim 2, characterized in that: A support plate (24) is fixedly mounted on the top of each of the two slide plates (8), an insert rod (25) is fixedly mounted on opposite sides of each of the two support plates (24), and a fixing ring (26) is fixedly mounted on both sides of the exterior of the connecting member (2).

7. The connection structure between crane end beams according to claim 2, characterized in that: The first threaded rod (5) is provided with two sections of threads with opposite textures, and the first threaded rod (5) is connected to the two slides (8) respectively via the two sections of threads with opposite textures.

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