Crane pulley fixing device for quick mounting and dismounting

Abstract

The utility model relates to a crane pulley fixing device for quick mounting and dismounting, which comprises a pulley fixing seat and a pulley body, the outer wall of the pulley fixing seat is provided with a dismounting mechanism, and the dismounting mechanism comprises a mounting rod slidably connected in the pulley fixing seat. And the peripheral wall of the mounting rod is in threaded connection with two nuts. According to the crane pulley fixing device for rapid mounting and dismounting, the nut is protected through the protective cover and is prevented from being affected by moisture or corrosion in air, and the influence of vibration on the nut is reduced through the action of the damper spring, the connecting base and the damping plate; the connecting rod and the limiting seat are fixed under the action of the electric lifting rod, the adjusting plate and the limiting plate, the nut and the protective cover are fixed through the connecting rod and the limiting seat, the connecting stability of the nut and the mounting rod is improved, the pulley fixing seat and the pulley body can be disassembled and assembled only by moving the limiting plate and screwing the nut, and the disassembling and assembling efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of crane pulley fixing devices, in particular to a crane pulley fixing device for rapid installation and disassembly. Background Art

[0002] A crane is a multi-action lifting machine that can lift and carry heavy objects vertically and horizontally within a certain range. It is also called an overhead crane, an overhead crane, or a crane. Crane trolleys widely use pulley devices to improve the reliability of crane lifting. At present, European cranes are used in various lifting fields due to their simple structure, small size, and easy use.

[0003] At present, the fixing device and the crane pulley are generally connected and installed in two ways. One is to fix the pulley on the fixing device by welding or riveting. This structure is relatively strong and not easy to loosen, and is suitable for situations with high safety requirements. The other is to fix the pulley on the fixing device with bolts or pins. This structure is relatively simple and easy to disassemble and assemble. It is suitable for situations where the pulley needs to be replaced or repaired frequently. The former has the following defects: when the pulley or the fixing device is damaged and needs to be replaced, it is difficult to disassemble and it is easy to cause equipment damage, affecting work efficiency. The latter has the following defects: although it is easy to disassemble and assemble, it is easy to cause the nut to loosen in harsh environments due to vibration, moisture or corrosion, resulting in unstable connection between the fixing device and the crane pulley, requiring frequent inspection and maintenance, increasing maintenance costs, and therefore a crane pulley fixing device for quick installation and disassembly is proposed. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a crane pulley fixing device for quick installation and disassembly, which has the advantages of improving connection stability while facilitating disassembly and maintenance, thereby solving the problems of inconvenient disassembly and maintenance and insufficient connection stability.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a crane pulley fixing device for rapid installation and disassembly, comprising a pulley fixing seat and a pulley body, wherein the outer wall of the pulley fixing seat is provided with a disassembly mechanism;

[0006] The cam is an assembly made of two or more camshafts, each of which is adapted to engage with the camshaft and to engage with the guide rails of the vehicle.

[0007] Furthermore, the outer walls of the mounting rod near both ends are respectively provided with thread grooves, the interiors of the pulley fixing seat and the pulley body are both provided with through holes, the mounting rod is slidably connected inside the through holes and the sizes are adapted, the two thread grooves are respectively located on the front and rear outer walls of the pulley fixing seat, and the size of the nut is adapted to the thread groove.

[0008] Furthermore, a through hole is opened inside the protective cover, the mounting rod is slidably connected inside the through hole and is adapted in size, the nut is located inside the protective cover and is adapted in size, and the outer walls on opposite sides of the two protective covers are respectively attached to the front and rear outer walls of the pulley fixing seat.

[0009] Furthermore, the limit seat is in a semi-ring shape, and two adjacent limit seats form a circular ring. The inner diameter of the circular ring is the same as the diameter of the mounting rod. The circular ring is fitted to the outer wall of the mounting rod. The diameter of the circular ring is the same as the diameter of the protective cover. The two circular rings are respectively fitted to the outer walls of the two protective covers on opposite sides.

[0010] Furthermore, a limiting groove is provided on the outer wall of the opposite side of the two limiting plates on the same side, and the side of the connecting rod away from the limiting seat is slidably connected to the inside of the limiting groove and is adapted in size. A sliding hole is provided inside the fixing seat, and the connecting rod is slidably connected to the inside of the sliding hole and is adapted in size.

[0011] Furthermore, the damping spring is slidably connected between the two damping plates.

[0012] Furthermore, the connecting seat is an arc-shaped plate, and the connecting seat is attached to the outer peripheral wall of the protective cover and the limiting seat.

[0013] Furthermore, a rubber plate is provided on the outer wall of the limiting plate.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] The crane pulley fixing device for quick installation and disassembly protects the nut through a protective cover to prevent it from being affected by moisture or corrosion in the air, reduces the effect of vibration on the nut through the effects of a vibration-damping spring, a connecting seat and a damping plate, fixes the connecting rod and the limiting seat through the effects of an electric lifting rod, an adjusting plate and a limiting plate, and the connecting rod and the limiting seat fix the nut and the protective cover, thereby improving the stability of the connection between the nut and the mounting rod, and the pulley fixing seat and the pulley body can be disassembled and assembled only by moving the limiting plate and twisting the nut, thereby improving the efficiency of disassembly and assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 For this utility model Figure 1 The left side is a schematic diagram of the cross-sectional structure;

[0018] Figure 3 This is a schematic diagram of the structure of the limiting plate of the utility model.

[0019] In the figure: 1. Pulley fixing seat; 2. Pulley body; 4. Mounting rod; 5. Nut; 6. Protective cover; 7. Limiting seat; 8. Connecting rod; 9. Fixing seat; 10. Mounting plate; 11. Electric lifting rod; 12. Adjusting plate; 13. Limiting plate; 14. Fixing plate; 15. Shock-absorbing spring; 16. Connecting seat; 17. Damping plate. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] For example, see Figure 1-3 A crane pulley fixing device for quick installation and disassembly in this embodiment includes a pulley fixing seat 1 and a pulley body 2, and a disassembly mechanism is provided on the outer wall of the pulley fixing seat 1.

[0022] The disassembly and assembly mechanism includes a mounting rod 4 slidably connected to the inside of the pulley fixing seat 1, and the outer peripheral wall of the mounting rod 4 is threadedly connected with two nuts 5, and the outer peripheral walls of the mounting rod 4 near the two ends are respectively provided with thread grooves, and the inside of the pulley fixing seat 1 and the pulley body 2 are provided with through holes, and the mounting rod 4 is slidably connected to the inside of the through holes and the sizes are adapted, and the two thread grooves are respectively located on the front and rear outer walls of the pulley fixing seat 1, and the nuts 5 are adapted to the sizes of the thread grooves, and the outer peripheral wall of the mounting rod 4 is slidably connected to the number of two protective covers 6, and the inside of the protective cover 6 is provided with a through hole, and the mounting rod 4 is slidably connected to the inside of the through hole and the size is adapted, and the nuts 5 are located inside the protective cover 6 and the size is adapted, and the outer walls of the opposite sides of the two protective covers 6 are respectively attached to the front and rear outer walls of the pulley fixing seat 1.

[0023] The protective cover 6 is slidably connected to the side away from the nut 5 with two limit seats 7, which are in a semi-ring shape. Two adjacent limit seats 7 form a circular ring, and the inner diameter of the circular ring is the same as the diameter of the mounting rod 4. The circular ring is fitted on the outer wall of the mounting rod 4, and the diameter of the circular ring is the same as the diameter of the protective cover 6. The two circular rings are respectively fitted on the outer walls of the two protective covers 6 on the opposite sides.

[0024] A connecting rod 8 is fixedly installed on the outer wall of the opposite side of two adjacent limit seats 7, two fixing seats 9 are fixedly installed on the outer walls of the front and rear sides of the pulley fixing seat 1, and a mounting plate 10 is fixedly installed on the outer wall of the front and rear sides of the pulley fixing seat 1. An electric lifting rod 11 is fixedly installed on the bottom outer wall of the mounting plate 10, and an adjusting plate 12 is fixedly installed on the telescopic shaft of the electric lifting rod 11. Two limit plates 13 are fixedly installed on the bottom outer wall of the adjusting plate 12. Limiting grooves are provided on the outer walls of the opposite sides of the two limit plates 13 on the same side. The side of the connecting rod 8 away from the limiting seat 7 is slidably connected to the inside of the limiting groove and is adapted in size. A sliding hole is provided inside the fixing seat 9, and the connecting rod 8 is slidably connected to the inside of the sliding hole and is adapted in size.

[0025] A fixing plate 14 is fixedly installed on the outer walls of the front and rear sides of the pulley fixing seat 1, a damping spring 15 is fixedly installed on the top outer wall of the fixing plate 14, a connecting seat 16 is fixedly installed on the top of the damping spring 15, the connecting seat 16 is an arc-shaped plate, and the connecting seat 16 is attached to the outer peripheral walls of the protective cover 6 and the limit seat 7, and two damping plates 17 are fixedly installed on the top outer wall of the fixing plate 14, and the damping spring 15 is slidably connected between the two damping plates 17.

[0026] In this embodiment, the pulley body 2 is rotatably connected to the inside of the pulley fixing seat 1 .

[0027] In this embodiment, the fixing seat 9 improves the stability of the connecting rod 8 when in use and prevents the connecting rod 8 from falling.

[0028] Embodiment 2 is a rubber plate provided on the basis of embodiment 1, and the rubber plate can increase the vibration absorption effect and further reduce the influence of the vibration on the nut 5.

[0029] The working principle of the above embodiment is:

[0030] When the pulley fixing seat 1 needs to be connected and installed with the pulley body 2, the pulley body 2 is first installed inside the pulley fixing seat 1, and then the mounting rod 4 passes through the inside of the pulley fixing seat 1 and the pulley body 2. At this time, the two nuts 5 are threadedly connected to the outer peripheral wall of the mounting rod 4. At this time, the preliminary fixing work of the pulley body 2 is completed, and then the protective cover 6 is slidably connected to the outer peripheral wall of the mounting rod 4 and the nut 5 is wrapped for protection. At this time, the connecting rod 8 drives the limiting seat 7 to move in the direction close to the mounting rod 4 and limits the protective cover 6. At this time, the electric lifting rod 11 drives the adjusting plate 12 and the limiting plate 13 to move downward synchronously to limit the connecting rod 8. Finally, the connecting seat 16 is fitted on the outer peripheral wall of the protective cover 6 and the limiting seat 7. At this time, the installation work of the pulley fixing seat 1 and the pulley body 2 is completed.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A crane pulley fixing device for quick installation and removal, comprising a pulley fixing seat (1) and a pulley body (2), characterized in that: The outer wall of the pulley fixing seat (1) is provided with a disassembly and assembly mechanism; The disassembly and assembly mechanism comprises a mounting rod (4) slidably connected to the inside of the pulley fixing seat (1); the outer peripheral wall of the mounting rod (4) is threadedly connected with two nuts (5); the outer peripheral wall of the mounting rod (4) is slidably connected with two protective covers (6); the side of the protective cover (6) away from the nuts (5) is slidably connected with two limit seats (7); the outer walls of two adjacent limit seats (7) on the opposite sides are fixedly installed with a connecting rod (8); the outer walls of the front and rear sides of the pulley fixing seat (1) are both fixedly installed with two fixing seats (9); the outer walls of the front and rear sides of the pulley fixing seat (1) are both fixedly installed with A mounting plate (10), an electric lifting rod (11) is fixedly mounted on the bottom outer wall of the mounting plate (10), an adjusting plate (12) is fixedly mounted on the telescopic shaft of the electric lifting rod (11), two limit plates (13) are fixedly mounted on the bottom outer wall of the adjusting plate (12), a fixing plate (14) is fixedly mounted on both the front and rear outer walls of the pulley fixing seat (1), a damping spring (15) is fixedly mounted on the top outer wall of the fixing plate (14), a connecting seat (16) is fixedly mounted on the top end of the damping spring (15), and two damping plates (17) are fixedly mounted on the top outer wall of the fixing plate (14).

2. A crane pulley fixing device for rapid installation and removal according to claim 1, characterized in that: The outer peripheral walls of the mounting rod (4) near both ends are respectively provided with thread grooves, the interiors of the pulley fixing seat (1) and the pulley body (2) are both provided with through holes, the mounting rod (4) is slidably connected inside the through holes and is of a size that matches the through holes, the two thread grooves are respectively located on the front and rear outer walls of the pulley fixing seat (1), and the nut (5) is of a size that matches the thread grooves.

3. A crane pulley fixing device for rapid installation and removal according to claim 1, characterized in that: The protective cover (6) has a through hole inside, the mounting rod (4) is slidably connected inside the through hole and is of a suitable size, the nut (5) is located inside the protective cover (6) and is of a suitable size, and the outer walls on opposite sides of the two protective covers (6) are respectively fitted to the outer walls on the front and rear sides of the pulley fixing seat (1).

4. A crane pulley fixing device for rapid installation and removal according to claim 1, characterized in that: The limiting seat (7) is in a semi-ring shape, and two adjacent limiting seats (7) form a circular ring. The inner diameter of the circular ring is the same as the diameter of the mounting rod (4). The circular ring is fitted on the outer peripheral wall of the mounting rod (4). The diameter of the circular ring is the same as the diameter of the protective cover (6). The two circular rings are respectively fitted on the outer walls of the two protective covers (6) on the opposite sides.

5. A crane pulley fixing device for rapid installation and removal according to claim 1, characterized in that: The two limiting plates (13) on the same side are provided with limiting grooves on the outer walls on the opposite sides, the connecting rod (8) is slidably connected to the inside of the limiting groove on the side away from the limiting seat (7) and is of a size that matches the inside of the limiting groove, and a sliding hole is provided inside the fixing seat (9), and the connecting rod (8) is slidably connected to the inside of the sliding hole and is of a size that matches the inside of the fixing seat (9).

6. A crane pulley fixing device for rapid installation and removal according to claim 1, characterized in that: The damping spring (15) is slidably connected between the two damping plates (17).

7. A crane pulley fixing device for rapid installation and removal according to claim 1, characterized in that: The connecting seat (16) is an arc-shaped plate, and the connecting seat (16) is fitted on the outer peripheral walls of the protective cover (6) and the limiting seat (7).

8. A crane pulley fixing device for rapid installation and removal according to claim 1, characterized in that: The outer wall of the limiting plate (13) is provided with a rubber plate.

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