Special lifting appliance for wheel set
By designing a special hoisting device for wheelsets that includes support rods, hanging plates, stretching devices and limiting devices, the problem in the existing technology of being unable to effectively lift wheelsets of different lengths and loosening during the lifting process is solved, and the problem is achieved Stable lifting and efficient use of wheelsets.
Patent Information
- Application Number
- CN202421234406.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-02
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2034-06-02
AI Technical Summary
Existing wheel pair special spreaders cannot effectively lift wheel pairs of different lengths, and they are prone to loosening and unstable during the lifting process, which limits the practicality of the spreader.
A special spreader for wheel sets is designed, which adopts a combined structure of support rods, hanging plates, stretching devices and limiting devices. The movement of the connecting rod drives the limit plate to slide, and the hook plate drives the backing plate to move. Place the wheelset on the wear-resistant coating backing plate, and through the cooperation of the sliding ball and spring, ensure that the connecting rod is stably limited in the chute. Avoid loosening.
It achieves effective lifting of wheel pairs of different lengths and sizes, avoids loosening during the lifting process, and improves the practicality and stability of the spreader.
Smart Images
Figure CN222374150U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of slings, in particular to a special sling for wheelsets. Background Art
[0002] The wheelset is the part of the locomotive vehicle that contacts the rails. It consists of two left and right wheels firmly pressed onto the same axle. The function of the wheelset is to ensure the running and steering of the locomotive vehicle on the rails, bear all static and dynamic loads from the locomotive vehicle, transfer them to the rails, and transfer the loads caused by uneven lines to various parts of the locomotive vehicle. In addition, the driving and braking of the locomotive vehicle are also acted upon by the wheelset.
[0003] However, the prior art still has the following problems:
[0004] Firstly, the existing wheelset-specific hoists on the market need to lift the wheelset. The lengths of the existing wheelsets on the market vary, but most of the wheelset-specific hoists cannot effectively lift wheelsets of different lengths, which greatly limits the use of the hoists.
[0005] Secondly, when the existing special wheelset hoists on the market are lifting wheels of different lengths, the tensioning device will become loose and unstable when sliding. The existing special wheelset hoists on the market cannot effectively avoid looseness and instability when lifting wheels, and have low practicality.
[0006] In view of the above problems, the inventor proposes a special lifting device for wheelsets to solve the above problems. Utility Model Content
[0007] In order to solve the problem of being able to effectively lift wheelsets of different lengths and sizes and being unable to effectively avoid loosening and stabilization when lifting the wheelsets; the purpose of the utility model is to provide a special lifting device for wheelsets.
[0008] To solve the above technical problems, the utility model adopts the following technical solutions: a special lifting device for wheels, comprising a support rod, the outer surface of the support rod is fixedly connected to two hanging plates, both ends of the support rod are provided with a stretching device, the stretching device comprises a connecting rod, one end of the connecting rod is fixedly connected to a limiting plate, both ends of the support rod are provided with a slide groove used to cooperate with the limiting plate, the outer surface of the limiting plate is fitted with the inner wall of the slide groove, one end of the connecting rod is fixedly connected to a hook plate, the lower parts of the outer surfaces of the two hook plates are both hook-shaped, one end of the hook plate is fixedly connected to a pull rod, the inner wall of the hook plate is fixedly connected to a pad, the inner surfaces of the two pads are coated with a wear-resistant coating, and the outer surfaces of the two connecting rods are provided with a limiting device.
[0009] Preferably, the limiting device includes four hollow sleeves, the outer surface of the connecting rod is provided with four fixing grooves used in conjunction with the hollow sleeves, the lower part of the outer surface of the hollow sleeve is fixedly connected to the inner wall of the fixing groove, the inner walls of the four hollow sleeves are fixedly connected with springs, one end of the four springs are fixedly connected with sliding balls, the inner wall of the connecting rod is provided with a plurality of limiting holes distributed in a circular array, and the outer surface of the sliding ball fits with the inner wall of the limiting hole.
[0010] Compared with the prior art, the beneficial effects of the present invention are:
[0011] 1. The utility model can drive the limit plate to slide in the inner wall of the slide groove opened by the support rod through the movement of the connecting rod, and the two hook plates respectively drive the pads to move to both sides, so that the wheelset is placed in the inner walls of the two pads, thereby achieving the purpose of effectively lifting wheelsets of different lengths and sizes;
[0012] 2. The utility model can compress and deform the spring by squeezing the sliding ball under force, and the outer surface of the sliding ball will enter the inner wall of the limiting hole, and the connecting rod can be stably limited in the inner wall of the sliding groove, thereby achieving the purpose of effectively avoiding looseness. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0014] Figure 1 It is a schematic diagram of the structure of the utility model.
[0015] Figure 2 It is a schematic diagram of the stretching device of the utility model.
[0016] Figure 3 It is a schematic diagram of the limiting device of the utility model.
[0017] In the figure: 1. support rod; 2. limit device; 3. stretching device; 4. hanging plate; 21. fixing groove; 22. hollow sleeve; 23. spring; 24. slide ball; 25. limit hole; 31. connecting rod; 32. limit plate; 33. hook plate; 34. pull rod; 35. pad; 36. wear-resistant coating; 37. slide groove. DETAILED DESCRIPTION
[0018] 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.
[0019] Example: Figure 1-3 As shown, the utility model provides a special lifting device for wheels, including a support rod 1, the outer surface of the support rod 1 is fixedly connected to two hanging plates 4, both ends of the support rod 1 are provided with a stretching device 3, the stretching device 3 includes a connecting rod 31, one end of the connecting rod 31 is fixedly connected to a limiting plate 32, both ends of the support rod 1 are provided with a slide groove 37 used to cooperate with the limiting plate 32, the outer surface of the limiting plate 32 is in contact with the inner wall of the slide groove 37, and one end of the connecting rod 31 is fixedly connected to a hook plate 33, the lower parts of the outer surfaces of the two hook plates 33 are in the shape of hooks, one end of the hook plate 33 is fixedly connected with a pull rod 34, the inner wall of the hook plate 33 is fixedly connected with a pad 35, the inner surfaces of the two pads 35 are coated with a wear-resistant coating 36, the outer surfaces of the two connecting rods 31 are provided with limit devices 2, the two hook plates 33 respectively drive the pads 35 to move to both sides, and the wheelset is placed in the inner walls of the two pads 35, so that the wheelset is stably lifted, and wheelsets of different lengths can be effectively lifted.
[0020] The limiting device 2 includes four hollow sleeves 22, and the outer surface of the connecting rod 31 is provided with four fixing grooves 21 used for matching the hollow sleeves 22. The lower part of the outer surface of the hollow sleeve 22 is fixedly connected to the inner wall of the fixing groove 21, and the inner walls of the four hollow sleeves 22 are fixedly connected with springs 23, and one end of the four springs 23 is fixedly connected with sliding balls 24. The inner wall of the connecting rod 31 is provided with a plurality of limiting holes 25 distributed in a circular array, and the outer surface of the sliding ball 24 fits with the inner wall of the limiting hole 25. The sliding ball 24 is squeezed by force to compress and deform the spring 23, and the outer surface of the sliding ball 24 will enter the inner wall of the limiting hole 25. The connecting rod 31 can be stably limited in the inner wall of the sliding groove 37, which can effectively avoid loose stability.
[0021] Working principle: First, insert the two hanging plates 4 with the lifting rope and lift them. When it is necessary to lift wheelsets of different lengths, pull the two pull rods 34 in the stretching device 3 respectively, and the pull rods 34 drive the hook plate 33 to move. When the hook plate 33 moves, it drives the connecting rod 31 to move. The movement of the connecting rod 31 drives the limit plate 32 to slide in the inner wall of the slide groove 37 opened in the support rod 1. The two hook plates 33 drive the pads 35 to move to both sides respectively, and place the wheelset on the inner walls of the two pads 35. The wear-resistant coating 36 painted on the inner walls of the two pads 35 can effectively increase the contact area with the wheelset, so that the wheelset can be stably lifted, thereby achieving the purpose of effectively lifting wheelsets of different lengths.
[0022] When the connecting rod 31 slides in the inner wall of the slide groove 37, the connecting rod 31 drives the hollow sleeve 22 in the inner wall of the fixed groove 21 to move, and the movement of the hollow sleeve 22 drives the sliding ball 24 to slide in the inner wall of the slide groove 37. The outer surface of the sliding ball 24 fits with the inner wall of the limiting hole 25 opened in the slide groove 37. The sliding ball 24 is squeezed by force to compress and deform the spring 23, and the outer surface of the sliding ball 24 will enter the inner wall of the limiting hole 25. The connecting rod 31 can be stably limited in the inner wall of the slide groove 37, thereby achieving the purpose of effectively avoiding loosening.
[0023] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.
Claims
1. A wheelset-specific lifting device, comprising a support rod (1), characterized in that: Both ends of the support rod (1) are provided with stretching devices (3); The stretching device (3) comprises a connecting rod (31), one end of the connecting rod (31) is fixedly connected to a limiting plate (32), one end of the connecting rod (31) is fixedly connected to a hook plate (33), one end of the hook plate (33) is fixedly connected to a pull rod (34), the inner wall of the hook plate (33) is fixedly connected to a pad (35), and the outer surfaces of the two connecting rods (31) are provided with limiting devices (2).
2. A wheelset-specific lifting device as claimed in claim 1, characterized in that: The limiting device (2) comprises four hollow sleeves (22), the outer surface of the connecting rod (31) is provided with four fixing grooves (21) used in conjunction with the hollow sleeves (22), the inner walls of the four hollow sleeves (22) are fixedly connected with springs (23), one end of the four springs (23) is fixedly connected with a sliding ball (24), and the inner wall of the connecting rod (31) is provided with a plurality of limiting holes (25) distributed in a ring array.
3. A wheelset-specific lifting device as claimed in claim 1, characterized in that: Two hanging plates (4) are fixedly connected to the outer surface of the support rod (1).
4. A wheelset-specific lifting device as claimed in claim 1, characterized in that: The inner surfaces of the two backing plates (35) are coated with a wear-resistant coating (36).
5. The special lifting device for wheelsets according to claim 1, characterized in that: Both ends of the support rod (1) are provided with sliding grooves (37) used in conjunction with the limiting plate (32), and the outer surface of the limiting plate (32) fits the inner wall of the sliding groove (37).
6. A wheelset-specific lifting device as claimed in claim 2, characterized in that: The lower portion of the outer surface of the hollow sleeve (22) is fixedly connected to the inner wall of the fixing groove (21).
7. A wheelset-specific lifting device as claimed in claim 2, characterized in that: The outer surface of the sliding ball (24) fits into the inner wall of the limiting hole (25).
8. The special lifting device for wheelsets according to claim 1, characterized in that: The lower parts of the outer surfaces of the two hook plates (33) are both in the shape of curved hooks.