Bearing oiling machine for monorail vehicle
A mechanical lubrication system for single-track train bearings automates the lubrication process, improving efficiency and reducing labor intensity while ensuring consistent lubrication and minimizing worker exposure to grease.
Patent Information
- Application Number
- CN202422404480.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-09-30
AI Technical Summary
In the prior art, the oil filling process of monorail bearings relies on manual operations, resulting in low efficiency, high labor intensity and unevenness, and long-term exposure of workers to oil is harmful to health.
A single-rail bearing oil injection machine is designed, using a cylinder and a pressure plate mechanism to inject grease into the bearing evenly through mechanization, and combined with air control valves and solenoid valves to achieve automatic oil injection.
It improves the efficiency of bearing oil injection, reduces the labor intensity of workers, reduces the harm of oil to the human body, and achieves efficient and uniform bearing lubrication.
Smart Images
Figure CN223105796U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of rail transit, and particularly relates to a single-rail vehicle bearing greasing machine. Background Art
[0002] The bearing in the bogie of a straddle-type monorail vehicle is a core component of the bogie. To ensure the safe operation of the train, regular inspections of the train are required. Each regular inspection includes an inspection of the tires, in which the bearing needs to be disassembled for cleaning and inspection, and then lubricating grease is re-injected for lubrication. Moreover, there are many types and quantities of bearings in a monorail vehicle train. A train with eight carriages needs to complete greasing 256 bearings. In the prior art, bearing greasing mainly relies on workers holding lubricants and bearings, and by patting or squeezing the bearings, the lubricating grease is made to enter the gap between the inner ring and the outer ring of the bearing. The grease has to be extruded from the bottom of the bearing to the top, and it is required that the oil outlet is uniform, and the pore parts in the middle must be greased in place. The whole process depends entirely on the manual operation of the employees, which is time-consuming and laborious, and the greasing effects of different workers are different. Unskilled workers are very likely to make operational mistakes. Moreover, during the greasing process, workers inevitably have to come into frequent contact with grease. After the greasing is completed, the grease on the hands is sticky and slippery, and it is very difficult to clean even after multiple washes. Moreover, long-term contact with such grease will have harmful effects on human health. There are objective problems such as low operation efficiency and high labor intensity. Summary of the Utility Model
[0003] In view of this, the problem to be solved by the utility model is to provide a single-rail vehicle bearing greasing machine to replace the original bearing greasing operation by manpower, while improving the work efficiency, greatly reducing the labor intensity of employees; overcoming the maintenance process of manually filling grease, designing a mechanical mechanism for quickly filling grease, and achieving the purpose of efficiently filling bearing grease.
[0004] The utility model solves the above technical problems through the following technical means: The utility model provides a single-rail vehicle bearing greasing machine, which includes a base, a bracket, a bottom column, a grease injection cylinder, a cylinder and a pressing plate. The bracket and the bottom column are fixedly arranged on the base. The bottom column is arranged below the bracket. The inside of the grease injection cylinder is provided with a cavity for containing grease. The lower end of the grease injection cylinder is provided with a first inner hole having the same diameter as the bottom column. The lower end of the grease injection cylinder is movably sleeved on the bottom column through the first inner hole. The upper end of the grease injection cylinder is provided with an oil outlet hole communicated with the first inner hole. The cylinder body end of the cylinder is fixedly arranged on the cross beam of the bracket, and the pressing plate is arranged on the movable end of the cylinder.
[0005] Further, a bottom plate is fixedly arranged on the upper end surface of the grease injection cylinder. The oil outlet hole penetrates through the bottom plate. The upper end surface of the bottom plate is set as a conical surface facing downward towards the center point of the oil outlet hole.
[0006] Furthermore, a tension spring is also arranged on the bracket, with one end of the tension spring fixed to the bracket and the other end fixed to the bottom plate.
[0007] Furthermore, the taper of the conical surface is 2:0.8 - 1.3.
[0008] Furthermore, the cylinder is arranged coaxially with the oil outlet hole. A first through hole is provided at the center position of the pressing plate, and the piston end of the cylinder passes through the first through hole and then fixes the pressing plate on the piston end.
[0009] Furthermore, a control assembly for controlling the cylinder is also arranged on the bracket. The control assembly includes a pneumatic control valve, an electromagnetic valve, a pressure gauge, a sensor, and a connector.
[0010] As can be seen from the above technical solutions, the beneficial effects of the present utility model are as follows: The present utility model provides a single-rail vehicle bearing oil injector, which includes a base, a bracket, a bottom column, an oil injection cylinder, a cylinder, and a pressing plate. The bracket and the bottom column are fixedly arranged on the base. The bottom column is arranged below the bracket. A cavity for containing grease is arranged inside the oil injection cylinder. A first inner hole with the same diameter as the bottom column is opened at the lower end of the oil injection cylinder. The lower end of the oil injection cylinder is movably sleeved on the bottom column through the first inner hole. An oil outlet hole communicating with the first inner hole is opened at the upper end of the oil injection cylinder. The cylinder body end of the cylinder is fixedly arranged on the cross beam of the bracket. The pressing plate is arranged on the movable end of the cylinder. With a special tooling cooperating with the cylinder, it replaces the original manual oil injection operation for the bearing, improves the work efficiency, and greatly reduces the labor intensity of employees. It overcomes the maintenance process of manually filling grease and achieves the purpose of efficiently filling grease into the bearing. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to actual scale.
[0012] Figure 1 It is a perspective view of the single-rail vehicle bearing oil injector provided by the present utility model;
[0013] Figure 2 It is a sectional view of the single-rail vehicle bearing oil injector provided by the present utility model;
[0014] Reference numerals:
[0015] 1 - Base; 2 - Bracket; 3 - Bottom column; 4 - Oil injection cylinder; 5 - Cylinder; 6 - Pressing plate; 41 - Cavity; 42 - Bottom plate; 43 - Oil outlet hole; 21 - Cross beam; 421 - Conical surface; 22 - Tension spring; 23 - Control assembly. Detailed implementation manners
[0016] The embodiments of the technical solution of the present utility model will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present utility model, so they are only examples and cannot be used to limit the protection scope of the present utility model.
[0017] Please refer to Figures 1-2 , the present utility model provides a single-rail vehicle bearing greasing machine, including a base 1, a bracket 2, a bottom column 3, a grease injection cylinder 4, a cylinder 5 and a pressing plate 6. The bracket 2 and the bottom column 3 are fixedly arranged on the base 1. The bottom column 3 is arranged below the bracket 2. The interior of the grease injection cylinder 4 is provided with a cavity 41 for containing grease. The lower end of the grease injection cylinder 4 is provided with a first inner hole having the same diameter as the bottom column 3. The lower end of the grease injection cylinder 4 is movably sleeved on the bottom column 3 through the first inner hole. The upper end of the grease injection cylinder 4 is provided with an oil outlet hole 43 communicating with the first inner hole. The cylinder body end of the cylinder is fixedly arranged on the cross beam 21 of the bracket 2. The pressing plate 6 is arranged on the movable end of the cylinder 5. When in use, the grease injection cylinder 4 is filled with grease, then the lower end of the grease injection cylinder 4 is sleeved on the bottom column 3, the cylinder 5 is fully retracted, and then the bearing to be greased is placed at the central position of the bottom plate 42. The cylinder 5 is pressed down so that the pressing plate 6 at the piston end of the cylinder 5 presses tightly on the bearing. Then the pressing plate 6 is further pressed down to make it press the grease injection cylinder 4 to slide down on the bottom column 3, so that the grease is extruded from the oil outlet hole. The extruded grease spreads over the gap between the bearing and the bottom plate 42 and then enters the bearing gap until the bearing inner gap is filled to complete the greasing work. It is used for bearing lubrication and greasing, improving the bearing greasing efficiency, reducing the contact between workers and grease, and avoiding adverse effects of grease on the health of workers.
[0018] As a further improvement of the above technical solution, a bottom plate 42 is fixedly arranged on the upper end surface of the grease injection cylinder 4. The oil outlet hole penetrates through the bottom plate 42. The upper end surface of the bottom plate 42 is set as a conical surface 421 facing downward towards the center point of the oil outlet hole. The taper of the conical surface 421 is 2:0.8 - 1.3. Setting the upper end surface of the bottom plate 42 as the conical surface 421 makes that no matter what size of bearing is placed on the end surface, there is always a gap between the bearing and the end surface, and the grease can enter the gap and then enter the bearing to complete the greasing work.
[0019] As a further improvement of the above technical solution, a tension spring 22 is further arranged on the bracket 2. One end of the tension spring 22 is fixed on the bracket 2 and the other end is fixed on the bottom plate 42. By arranging the tension spring 22 on the bracket 2 and fixing the other end of the tension spring 22 on the bottom plate 42, after the bearing greasing is completed, the cylinder 5 retracts, and the bottom plate 42 and the grease injection cylinder 4 reset under the elastic force of the tension spring 22, and then the grease can be replenished.
[0020] As a further improvement to the above technical solution, the cylinder 5 is coaxially arranged with the oil outlet hole 43. A first through hole is provided at the center position of the pressing plate 6, and the piston end of the cylinder 5 passes through the first through hole and then fixes the pressing plate 6 on the piston end. By arranging the cylinder 5 coaxially with the oil outlet hole 43, during use, after placing the bearing on the bottom plate 42, the bearing can be placed at the center position of the bottom plate 42. Extend the air pipe so that the end of the piston end of the cylinder 5 is inserted into the inner ring of the bearing to limit the position of the bearing. Then continue to press down the pressing plate 6 so that the pressing plate 6 presses tightly on the bearing. Continue to press down the pressing plate 6 to press down the oil injection cylinder 4, so that the bottom column 3 is inserted into the cavity 41 of the oil injection cylinder 4 to extrude the grease from the position of the oil outlet hole. Then the grease is filled in the bearing through the gap on the bearing to complete the bearing oil injection work.
[0021] As a further improvement to the above technical solution, a control assembly for controlling the cylinder is further provided on the bracket. The control assembly includes a pneumatic control valve, a solenoid valve, a pressure gauge, a sensor, and a connector. The extension and retraction of the cylinder are controlled by the control assembly, and the pressing plate is pressed down by the cylinder; the extension and retraction of the cylinder are controlled by setting a foot pedal. During use, the staff controls the extension and retraction of the cylinder by stepping on the foot pedal, and one person can complete the oil injection work of the bearing.
[0022] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered by the scope of the claims and the description of the present invention.
Claims
1. A single-rail vehicle bearing oil injector, characterized in that: It includes a base (1), a bracket (2), a bottom column (3), an oil injection cylinder (4), a cylinder (5) and a pressing plate (6). The bracket (2) and the bottom column (3) are fixedly arranged on the base (1). The bottom column (3) is arranged below the bracket (2). A cavity (41) for containing grease is arranged inside the oil injection cylinder (4). A first inner hole with the same diameter as the bottom column (3) is opened at the lower end of the oil injection cylinder (4). The lower end of the oil injection cylinder (4) is movably sleeved on the bottom column (3) through the first inner hole. An oil outlet hole (43) communicating with the first inner hole is opened at the upper end of the oil injection cylinder (4). The cylinder body end of the cylinder is fixedly arranged on the cross beam (21) of the bracket (2). The pressing plate (6) is arranged on the movable end of the cylinder (5).
2. The single-rail vehicle bearing oil injector according to claim 1, characterized in that: A bottom plate (42) is fixedly arranged on the upper end surface of the oil injection cylinder (4). The oil outlet hole penetrates through the bottom plate (42). The upper end surface of the bottom plate (42) is set as a conical surface (421) facing downward towards the center point of the oil outlet hole.
3. The single-rail vehicle bearing oil injection machine according to claim 2, wherein: A tension spring (22) is also arranged on the bracket (2). One end of the tension spring (22) is fixed on the bracket (2) and the other end is fixed on the bottom plate (42).
4. The single-rail vehicle bearing oil injector according to claim 3, wherein: The taper of the conical surface (421) is 2:0.8 - 1.
3.
5. The single-rail vehicle bearing oil injector according to claim 1, wherein: The cylinder (5) is arranged coaxially with the oil outlet hole (43). A first through hole is arranged at the center position of the pressing plate (6). The piston end of the cylinder (5) passes through the first through hole and then fixes the pressing plate (6) on the piston end.
6. The single-rail vehicle bearing oil injector according to claim 1, characterized in that: A control assembly (23) for controlling the cylinder (5) is also arranged on the bracket (2). The control assembly (23) includes a pneumatic control valve, a solenoid valve, a pressure gauge, a sensor and a connector.