Multifunctional crown block coupler assembly mounting tool

Abstract

The utility model relates to the technical field of multifunctional crown block maintenance, in particular to a multifunctional crown block coupler assembly installation tool which comprises a bolt, a limiting ring arranged on the rod portion of the bolt in a sleeved mode, a nut connected to the rod portion of the bolt in a threaded mode and a pressing mechanism arranged on the head portion of the bolt. The pressing mechanism comprises a fixing block arranged on the head of the bolt through a connecting rod and an adjusting assembly arranged on the fixing block. Three rotating rods and pressing blocks which are distributed at equal intervals in the circumferential direction of a pressing mechanism are matched with meshing transmission of a driving gear and a driven gear, multi-directional synchronous adjustment is achieved, it is ensured that a hook assembly is rapidly aligned with a bolt hole of a frame body, the problem of hole position deviation caused by an insulating plate in traditional installation is solved, and the hoisting and installation time is remarkably shortened; the design that the detachable outer sleeve is matched with the rotating rod pressing block is adopted, a standard aperture can be adapted through the conical base, the pressing block can be unfolded to adapt to a large-aperture scene after the outer sleeve is detached, the requirements of different working conditions are met, and the universality of the tool is improved.

Description

Technical Field

[0001] This utility model relates to the field of multi-functional overhead crane maintenance technology, specifically to a multi-functional overhead crane hook assembly installation fixture. Background Technology

[0002] The multi-functional overhead crane hook assembly requires overall maintenance after a period of time. During disassembly and installation, the presence of three insulating plates between the assembly and the mounting frame makes it difficult to align the four fixing bolt holes, resulting in excessively long installation and hoisting times. This increases the workload of maintenance personnel and poses serious safety hazards during prolonged hoisting operations. Utility Model Content

[0003] The purpose of this utility model is to provide a multifunctional overhead crane hook assembly installation fixture to solve the problem mentioned in the background art of difficulty in aligning the four fixing bolt holes between the assembly and the mounting frame, which results in excessively long installation and hoisting times.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a multi-functional overhead crane hook assembly installation fixture, including a bolt, a limiting ring sleeved on the bolt shank, a nut threadedly connected to the bolt shank, and a clamping mechanism located on the bolt head; the clamping mechanism includes a fixing block located on the bolt head via a connecting rod and an adjusting component located on the fixing block.

[0005] Furthermore, the adjustment assembly includes a rotary valve rotatably connected to the fixed block and a rotary rod rotatably connected to the bottom of the fixed block; one end of the rotary valve extends to the bottom of the fixed block and is connected to a drive gear; three rotary rods are provided and are equidistantly arranged along the circumference of the fixed block; each of the three rotary rods is provided with a driven gear that meshes with the drive gear; and each of the three rotary rods is provided with a clamping block.

[0006] Furthermore, both the fixed block and the rotary valve are provided with pin holes.

[0007] Furthermore, the bottom of the fixing block is provided with a housing located outside the driven gear, and the housing is connected to a base via a vertical rod, the end of which is tapered.

[0008] Furthermore, the bolt shank is also provided with a fork-shaped lever.

[0009] Furthermore, the fixing block is threaded with an outer sleeve.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] 1. By using the three circumferentially equidistant rotating rods and clamping blocks of the clamping mechanism, and in conjunction with the meshing transmission of the driving gear and the driven gear, multi-directional synchronous adjustment is achieved, ensuring that the bolt holes of the hook assembly and the frame are quickly aligned. This solves the problem of hole misalignment caused by the insulation plate in traditional installation, and significantly shortens the hoisting and installation time.

[0012] 2. The design of the detachable outer sleeve and the rotating rod clamping block can be used to adapt to standard hole diameters through the conical base, and the clamping block can be unfolded after removing the outer sleeve to adapt to large hole diameter scenarios, meet the needs of different working conditions, and improve the versatility of tooling.

[0013] 3. The pin hole design allows the pin to be inserted after adjustment to fix the position of the rotary valve, preventing gear transmission rebound, ensuring stable contact between the clamping block and the inner wall of the bolt hole, and avoiding the risk of displacement due to vibration during hoisting.

[0014] 4. The fork-shaped lever on the bolt shank can assist in the pre-positioning of the insulating plate and hook assembly, reducing manual adjustment steps; the housing and vertical rod structure protect the gear assembly, while the tapered design of the base facilitates quick insertion into the bolt hole, simplifying the operation process. Attached Figure Description

[0015] Figure 1 This is a structural diagram of the present utility model;

[0016] Figure 2 This is a diagram of the internal structure of this utility model;

[0017] Figure 3 This is a partial structural diagram of the present utility model;

[0018] Figure 4 This is a diagram showing the closed state of this utility model;

[0019] Figure 5 This is a diagram showing the unfolded state of this utility model;

[0020] Figure 6 This is a structural diagram of the rotary valve of this utility model;

[0021] Figure 7 This is an installation diagram of the present utility model.

[0022] In the picture:

[0023] 1. Bolt; 2. Limiting ring; 3. Nut; 4. Connecting rod; 5. Fixing block; 6. Rotary valve; 7. Rotating rod; 8. Driving gear; 9. Driven gear; 10. Clamping block; 11. Pin hole; 12. Housing; 13. Vertical rod; 14. Base; 15. Fork lever; 16. Outer sleeve; 17. Frame; 18. Hook assembly; 19. Installation fixture; 20. Insulating plate. Detailed Implementation

[0024] Please see Figure 7 When installing the hook assembly 18 onto the frame 17, in order to reduce the installation and hoisting time of the hook assembly 18, the installation fixture 19 is required. First, the insulating plate 20 is fixed to the bottom of the hook assembly 18 using the four installation fixtures 19. Then, the bottom of the installation fixture 19 is placed into the bolt holes on the frame 17. Then, the hook assembly 18 is pressed onto the frame 17 by the crane. Then, the installation fixture 19 is removed, and the hook assembly 18 is fixed onto the frame 17 using the bolts and nuts used for installation.

[0025] Please see Figures 1 to 6 The multi-functional overhead crane hook assembly installation fixture consists of a bolt 1, a limiting ring 2 sleeved on the shank of bolt 1, a nut 3 threadedly connected to the shank of bolt 1, a clamping mechanism located on the head of bolt 1, and an outer sleeve 16 threadedly connected to the clamping mechanism and located outside the clamping mechanism.

[0026] The clamping mechanism consists of a fixed block 5 and an adjusting assembly. The fixed block 5 is fixedly mounted on the head of the bolt 1 via a connecting rod 4. The adjusting assembly consists of a rotary valve 6 rotatably connected to the fixed block 5 via a bearing and a rotary rod 7 rotatably connected to the bottom of the fixed block 5 via a bearing. One end of the rotary valve 6 extends to the bottom of the fixed block 5 and is connected to a drive gear 8. The fixed block is cylindrical. There are three rotary rods 7, which are equidistantly arranged around the circumference of the fixed block 5. Each of the three rotary rods 7 has a driven gear 9 that meshes with the drive gear 8. Each of the three rotary rods 7 has a clamping block 10. If the bolt holes on the frame 17 are too large to be positioned by the outer sleeve 16, the outer sleeve 16 is unscrewed, and the three rotary rods 7 are inserted into the bolt holes. The rotary valve 6 is then rotated using a wrench or other tools. The meshing relationship between the driving gear 8 and the driven gear 9 drives the three clamping blocks 10 to rotate out synchronously until they abut against the inner wall of the bolt hole. Then, a pin is inserted into the pin hole 11 opened on the fixing block 5 and the rotating valve 6 to fix the position of the three rotating rods 7. The bottom of the rotating valve 6 is also cylindrical, and multiple pin holes 11 are evenly spaced along the circumference of the bottom of the rotating valve 6. In order to further fix the position of the insulating plate 20, a fork pawl 15 is also provided on the rod of the bolt 1. In order to prevent damage to the driving gear 8 and the driven gear 9 during use, a housing 12 is provided at the bottom of the fixing block 5 outside the driven gear 9. A base 14 is connected to the bottom of the housing 12 by a vertical rod 13, and the end of the base 14 is tapered to facilitate entry into the bolt hole.

[0027] The working principle of this utility model is as follows: When installing the hook assembly 18 on the frame 17, first, the limiting ring 2 is placed on the bolt 1 rod, then the bolt 1 rod is placed in the bolt hole opened on the insulating plate 20, then the fork plate 15 is placed on the upper surface of the insulating plate 20, and then the hook assembly 18 is placed on the fork plate 15, so that the bolt 1 rod enters the bolt hole opened on the I-shaped steel at the bottom of the hook assembly 18, and then the nut 3 is screwed in. Finally, the hook assembly 18 and the insulating plate 20 are moved down by the hoist or other handling equipment, so that the outer sleeve 16 enters the bolt hole opened on the frame 17. After the hook assembly 18 and the insulating plate 20 are pressed firmly on the frame 17, the nut 3 is unscrewed, and then the installation fixture 19 is removed. Since there are four installation fixtures 19, the bolt holes of the hook assembly 18 and the frame 17 are all aligned. Finally, the bolts and nuts used for installation and fixing are screwed in to fix the hook assembly 18 and the frame 17.

[0028] If the bolt holes on the frame 17 are too large, using the outer sleeve 16 for positioning will cause deviation. In this case, the remaining steps remain the same as above. Simply unscrew the outer sleeve 16, insert the base 14 into the bolt holes, and then insert the three rotating rods 7 into the bolt holes. Then, use a wrench or other tools to rotate the rotating valve 6. The meshing relationship between the driving gear 8 and the driven gear 9 will drive the three clamping blocks 10 to rotate out synchronously until they are against the inner wall of the bolt holes. Then, insert pins into the pin holes 11 on the fixing block 5 and the rotating valve 6 to fix the position of the three rotating rods 7 at this time.

Claims

1. A multi-functional overhead crane hook assembly installation fixture, comprising a bolt (1), a limiting ring (2) fitted onto the shank of the bolt (1), and a nut (3) threaded onto the shank of the bolt (1), characterized in that, It also includes a clamping mechanism located on the head of the bolt (1); the clamping mechanism includes a fixing block (5) located on the head of the bolt (1) via a connecting rod (4) and an adjusting component located on the fixing block (5).

2. The multi-functional overhead crane hook assembly installation fixture as described in claim 1, characterized in that, The adjustment assembly includes a rotary valve (6) rotatably connected to the fixed block (5) and a rotary rod (7) rotatably connected to the bottom of the fixed block (5); one end of the rotary valve (6) extends to the bottom of the fixed block (5) and is connected to a drive gear (8); there are three rotary rods (7) and they are equidistantly arranged along the circumference of the fixed block (5); each of the three rotary rods (7) is provided with a driven gear (9) that meshes with the drive gear (8); and each of the three rotary rods (7) is provided with a clamping block (10).

3. The multi-functional overhead crane hook assembly installation fixture as described in claim 2, characterized in that, Both the fixed block (5) and the rotary valve (6) are provided with pin holes (11).

4. The multi-functional overhead crane hook assembly installation fixture as described in claim 2, characterized in that, The bottom of the fixed block (5) is provided with a housing (12) located outside the driven gear (9). The housing (12) is connected to a base (14) via a vertical rod (13). The end of the base (14) is tapered.

5. The multi-functional overhead crane hook assembly installation fixture as described in claim 1, characterized in that, The bolt (1) is also provided with a fork (15) on its shank.

6. The multi-functional overhead crane hook assembly installation fixture as described in claim 5, characterized in that, The fixing block (5) is threaded with an outer sleeve (16).

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