Wheelset unloading machine

By simplifying the structure of the wheelset unloading machine, and utilizing multi-layer guide rails and multi-stage plunger cylinder lifting, the problems of complex structure and high cost in existing technologies have been solved, achieving the effects of easy installation and cost reduction.

CN224406874UActive Publication Date: 2026-06-26HUBEI HEQIANG MACHINERY DEV LIMITED BY SHARE

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUBEI HEQIANG MACHINERY DEV LIMITED BY SHARE
Filing Date
2025-07-10
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing train wheelset unloading machines are complex in structure, costly, and inconvenient to install.

Method used

The wheelset unloading machine features a simple structure, including a base, unloading power head, unloading positioning device, and trolley device. It utilizes multi-layer guide rails and multi-stage piston cylinder lifting to achieve easy operation of the wheelsets.

Benefits of technology

It achieves a simple structure, easy installation, reduced costs, meets process lifting requirements, and is more convenient to operate.

✦ Generated by Eureka AI based on patent content.

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Abstract

A wheel set unloading machine, comprising a base, an unloading power head, an unloading clamping device and a trolley device, the unloading power head is provided with an unloading cylinder in a mounting seat, the mounting seat is arranged at one end of the base, the unloading clamping device comprises a mounting frame and a clamping device, the mounting frame is arranged in front of the mounting seat by a transverse pull rod and fixed at one end of the mounting seat, and the other end is connected with the clamping device, the clamping device is an unloading plate with a U-shaped opening facing upward, the lower edge of the unloading plate is fixed on the base, the upper surface of the unloading plate is provided with a mounting hole, and the mounting hole of the unloading plate is arranged on the mounting frame in front of the unloading power head in matched mode with the transverse pull rod; the trolley device is arranged at the other end of the base in correspondence with the unloading power head. The wheel set unloading machine has the advantages that the structure is simple, the overall frame, the fixed beam and the movable beam are not needed, the installation is easy, the wheel set unloading operation is more convenient, the cost is reduced, and the trolley can lift the wheel set higher and more stably.
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Description

Technical Field

[0001] This utility model relates to a piece of equipment for rail transit, specifically a wheelset unloading machine. Background Technology

[0002] There are various types of train wheelset unloading machines available, all of which can meet the unloading requirements. However, most of them require a large overall frame, fixed beams, movable beams, etc., which makes the structure relatively complex and the cost relatively high. However, the ideal pursuit of this industry is to achieve a simpler structure, easier installation, and lower costs. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this utility model provides a wheelset unloading machine, which has a simple structure, is easy to install, makes wheelset unloading more convenient, and reduces costs.

[0004] To achieve the above objectives, the technical solution of this utility model is a wheelset unloading machine, comprising a base, an unloading power head, an unloading locking device, and a trolley device. The unloading power head has an unloading cylinder housed within a mounting base, and the mounting base is located at one end of the base. The unloading locking device comprises a mounting frame and a locking mechanism. The mounting frame is secured to the mounting base at one end by a transverse tie rod, and the other end is connected to the locking mechanism. The locking mechanism is a U-shaped unloading plate with an upward-facing opening, its lower edge fixed to the base. The unloading plate has mounting holes, which are fitted onto the mounting frame in front of the unloading power head in conjunction with the transverse tie rod. The trolley device is located at the other end of the base, corresponding to the unloading power head.

[0005] The trolley device has a base plate, a frame on the base plate, a lifting cylinder in the middle of the frame, vertical guide components symmetrically arranged on the frame on both sides of the lifting cylinder, a top plate at the top of the lifting cylinder, a slewing bearing device on the top plate, a support plate on the slewing bearing device, two support shaft assemblies symmetrically arranged on the support plate, and a clamping mechanism on one of the support shaft assemblies. The trolley device is connected to a moving cylinder, which is located inside the base.

[0006] The vertical guide component has 1-3 levels.

[0007] A guide assembly is provided between the trolley device and the base.

[0008] The guiding component is a guide rail and guide groove pair.

[0009] The shaft support assembly is provided with a V-shaped upright plate and a pad on it.

[0010] Furthermore, the aforementioned support shaft assembly has two sets of columns, which are placed on the four corners of the trolley device support plate, and the columns are equipped with small column heads.

[0011] The advantages of this invention are that it has a simple structure, eliminating the need for an overall frame, fixed beams, movable beams, etc., making installation easy, and the unloading wheel pair operation more convenient, thus reducing costs. The trolley has a large lifting stroke, facilitating manual operation while meeting process lifting requirements. Attached Figure Description

[0012] Figure 1 This is the front view of this utility model.

[0013] Figure 2 This is a top view of the present invention.

[0014] Figure 3 This is a schematic diagram of the positioning device of this utility model.

[0015] Figure 4 This utility model includes two perspective views of the trolley and a diagram of the trolley in a lifted state.

[0016] Figure 5-24 This is a process diagram of the wheel assembly removal process of this utility model.

[0017] In the picture:

[0018] 100 A type of wheelset unloading machine;

[0019] 1. Base;

[0020] 2. Unloading power head; 21. Unloading cylinder; 22. Mounting base;

[0021] 3. Unloading and locking device, 31. Mounting bracket, 311. Horizontal tie rod, 32. Locking device, 321. Unloading plate, 322. Mounting hole;

[0022] 4. Trolley device, 41. Seat plate, 42. Chassis, 43. Lifting cylinder, 44. Vertical guide assembly, 45. Top plate, 46. Slewing bearing device, 47. Support plate, 48. Support shaft assembly, 481. V-shaped upright plate, 482. Pad block, 49. Clamping mechanism, 40. Moving cylinder.

[0023] 5. Guide assembly (guide rail and guide groove pair);

[0024] 6 axles;

[0025] 7 wheels;

[0026] 8 Nylon transition sleeves. Detailed Implementation

[0027] The embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0028] like Figures 1 to 24As shown, this utility model discloses a wheelset unloading machine, including a base 1, an unloading power head 2, an unloading locking device 3, and a trolley device 4. The unloading power head has an unloading cylinder 21 installed in a mounting base 22. The mounting base is located at one end of the base. The unloading locking device 3 includes a mounting frame 31 and a locking device 32. The mounting frame is provided in front of the mounting base by a horizontal tie rod 311, with one end fixed to the mounting base and the other end connected to the locking device 32. The locking device 32 is an unloading plate 321 with a U-shaped opening facing upwards, the lower side of which is fixed to the base. The unloading plate has mounting holes 322 on its surface. The mounting holes of the unloading plate are fitted with the horizontal tie rod on the mounting frame in front of the unloading power head. The trolley device 4 is located at the other end of the base, corresponding to the unloading power head.

[0029] The trolley device 4 has a base plate 41, a frame 42 on the base plate, a lifting cylinder 43 in the middle of the frame, vertical guide components 44 symmetrically arranged on the frame on both sides of the lifting cylinder, a top plate 45 at the top of the lifting cylinder, a slewing bearing device 46 on the top plate, a support plate 47 on the slewing bearing device, and two symmetrically arranged support shaft assemblies 48 on the support plate. A clamping mechanism 49 is provided on one of the support shaft assemblies. The trolley device is connected to a moving cylinder 40, which is located inside the base. This trolley lifting mechanism uses multi-layer guide rails and a multi-stage plunger cylinder lifting method to achieve a large lifting stroke when the workpiece is in a low position, which facilitates manual operation while meeting the process lifting requirements.

[0030] The vertical guide component has 1-3 levels.

[0031] A guide assembly 5 is provided between the trolley device and the base.

[0032] The guiding component is a guide rail and guide groove pair.

[0033] The axle support assembly 48 is provided with a V-shaped upright plate 481, on which a pad 482 made of nylon is provided to prevent axle damage.

[0034] Furthermore, the aforementioned support shaft assembly 48 has two sets of columns, which are placed on the four corners of the trolley device support plate, and the columns are provided with small column heads.

[0035] The process for removing the wheelset in this invention is as follows:

[0036] Before unloading, a nylon transition sleeve is installed on the piston rod of the unloading cylinder;

[0037] like Figure 5-6 As shown, the wheelset is hoisted onto the rotating lifting trolley of the machine, and the trolley clamping mechanism locks the axle.

[0038] like Figure 7-8 As shown, the trolley lifts the wheelset to a certain height;

[0039] like Figure 9-10 As shown, the trolley moves the wheelset above the positioning device;

[0040] like Figure 11-12 As shown, the lowering wheelset is placed into the U-shaped opening, at which point the unloading cylinder is concentric with the wheelset;

[0041] like Figure 13-14 As shown, unloading begins, and the piston rod of the unloading cylinder extends and presses against the end face of the axle;

[0042] like Figure 15-16 As shown, the piston rod of the unloading cylinder pushes the axle, the unloading plate blocks the wheel, and the piston rod continues to push the axle;

[0043] like Figure 17-18 As shown, unloading is complete, and the wheel rests on the piston rod transition sleeve;

[0044] like Figures 19-20 As shown, the trolley and piston rod are reset, and the wheel that has fallen onto the outer transition sleeve of the piston rod is lifted away manually.

[0045] like Figure 21-22 As shown, the trolley lifts the wheelset to a certain height;

[0046] like Figure 23-24 As shown, the trolley rotates the other wheel to be removed by 180 degrees, and then repeats the above steps to remove the wheel.

[0047] Similarly, the wheelset removal process with axle box is the same as described above, except that the trolley device is replaced with the corresponding axle support assembly before removing the wheelset.

[0048] The above description is merely one embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A wheelset unloading machine, comprising a base, an unloading power head, an unloading locking device, and a trolley device, wherein the unloading power head has an unloading cylinder disposed within a mounting base, and the mounting base is disposed at one end of the base, characterized in that: The unloading and positioning device includes a mounting frame and a positioning device. The mounting frame is provided in front of the mounting base by a horizontal tie rod, with one end fixed to the mounting base and the other end connected to the positioning device. The positioning device is a U-shaped unloading plate with its opening facing upward, the lower side of which is fixed to the base. The unloading plate has mounting holes on its surface. The mounting holes of the unloading plate are fitted with the horizontal tie rod on the mounting frame in front of the unloading power head. The trolley device is located at the other end of the base, corresponding to the unloading power head. A guide assembly is provided between the trolley device and the base.

2. A wheelset unloading machine as described in claim 1, characterized in that: The trolley device has a base plate, a frame on the base plate, a lifting cylinder in the middle of the frame, vertical guide components symmetrically arranged on the frame on both sides of the lifting cylinder, a top plate at the top of the lifting cylinder, a slewing bearing device on the top plate, a support plate on the slewing bearing device, two support shaft assemblies symmetrically arranged on the support plate, and a clamping mechanism on one of the support shaft assemblies. The trolley device is connected to a moving cylinder, which is located inside the base.

3. A wheelset unloading machine as described in claim 2, characterized in that: The vertical guide component has 1-3 levels.

4. A wheelset unloading machine as described in claim 1, characterized in that: Its characteristics are: The guiding component is a guide rail and guide groove pair.

5. A wheelset unloading machine as described in claim 2, characterized in that: The shaft support assembly is provided with a V-shaped upright plate and a pad on it.

6. A wheelset unloading machine as described in claim 2, characterized in that: The aforementioned support shaft assembly has two sets of columns, which are placed on the four corners of the trolley device support plate, and the columns are equipped with small column heads.