Speed reducer with self-driving oil pump function
By installing a gear oil pump on the non-drive end of the high-speed shaft of the reducer, and lubricate the bearings with the rotational drive oil pump of the high-speed shaft, the problem that the output bearings of the reducer installed at a large inclination angle cannot be well lubricated, achieving better lubrication effect and reduced maintenance costs.
Patent Information
- Application Number
- CN202422128095.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-30
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-08-30
AI Technical Summary
The output bearings of the reducer installed at a large inclination angle cannot be well lubricated due to the large inclination angle, resulting in reduced lubrication effect, increased operating temperature, frequent bearings and gear damage.
A reducer with self-driving oil pump function is designed. By extending and installing a gear oil pump at the non-drive end of the high-speed shaft, the bearing is lubricated by the rotational drive oil pump of the high-speed shaft.
It realizes good lubrication of the output shaft of the reducer, reduces maintenance costs, and has better lubrication effect than forced dry oil lubrication. The reducer temperature is stable at around 50℃, which improves production efficiency and safety.
Smart Images
Figure CN222924921U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of metallurgical engineering equipment, and particularly relates to a speed reducer with a self-driven oil pump function. Background Technique
[0002] The installation angle of the disk pelletizer is about 45°. The lubrication method of the speed reducer itself is oil bath lubrication. Due to the large angle between the speed reducer and the horizontal plane, the grease in the speed reducer cavity cannot splash onto the output shaft bearing. Therefore, the output shaft bearing of the original speed reducer and the inner cavity of the speed reducer are sealed with a skeleton oil seal, and the output shaft bearing is lubricated by manual dry oil forced lubrication. When the oil seal of the output shaft fails, the grease in the bearing chamber enters the speed reducer cavity, which will cause the increase of the oil viscosity in the speed reducer, the pollution of the grease, the reduction of the lubrication effect of the speed reducer, the increase of the operating temperature, and the frequent occurrence of faults such as bearing and gear damage during the long-term operation of the speed reducer in this environment.
[0003] Therefore, it is necessary to design a speed reducer with a self-driven oil pump function, improve the non-driving end of the high-speed shaft, extend the non-driving end of the high-speed shaft, install a gear oil pump at the extended part, and use the rotation of the high-speed shaft itself to drive the oil pump to lubricate the bearing. Content of the Utility Model
[0004] Aiming at the problems of the prior art, the purpose of the utility model is to provide a speed reducer with a self-driven oil pump function to solve the problem that the output bearing of the speed reducer installed at a large inclination angle cannot be well lubricated due to the large inclination angle.
[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0006] A speed reducer with a self-driven oil pump function includes a speed reducer. An oil outlet hole of the speed reducer is provided at the front end of the speed reducer. One end of an oil pipe is connected to the oil outlet hole of the speed reducer, and the other end of the oil pipe is connected to an oil inlet of the bearing chamber inside the output shaft bearing chamber. A gear oil pump is provided on the oil pipe.
[0007] More preferably, the speed reducer is provided with a high-speed shaft, and the non-driving end of the high-speed shaft is flange-connected to the gear oil pump.
[0008] More preferably, a filter is provided on the oil pipe.
[0009] More preferably, the oil pipe is a high-pressure rubber hose.
[0010] The utility model has the following beneficial effects compared with the prior art:
[0011] 1. A speed reducer with a self-driven oil pump function provided by the present utility model adopts the method of self-driving the oil pump of the speed reducer, without the need to add a driving motor, without corresponding increase in energy consumption, and has a convenient installation method, good lubrication effect, and low maintenance cost.
[0012] 2. The oil pump circulating lubrication method of this utility model has a better effect than dry oil forced lubrication. After the lubrication of the speed reducer is improved, the temperature of the speed reducer is stable at about 50 °C. A filter is installed in the oil pipe to filter the grease during the oil circulation process, which can further improve the lubrication effect of the grease. The oil pipe adopts a high-pressure rubber hose, which can meet the requirements of high pressure resistance, corrosion resistance, high temperature resistance, etc., improving production efficiency and safety. Brief Description of the Drawings
[0013] Figure 1 is the overall structure diagram of the present utility model;
[0014] Figure 2 is the partial enlarged view of the present utility model;
[0015] The meanings of the reference numerals are as follows: 1, speed reducer; 2, high-speed shaft; 3, oil outlet hole of the speed reducer; 4, gear oil pump; 5, filter; 6, oil pipe; 7, output shaft bearing chamber; 8, oil inlet hole of the bearing chamber. Detailed Embodiment
[0016] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the following further details the present utility model in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.
[0017] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.
[0018] Such as Figure 1-2A speed reducer with a self-driven oil pump function as shown includes a speed reducer 1. There is an oil outlet hole 3 at the front end of the speed reducer 1. One end of an oil pipe 6 is connected to the oil outlet hole 3, and the other end of the oil pipe 6 is connected to an oil inlet hole 8 inside the bearing chamber of the output shaft bearing chamber 7. A gear oil pump 4 and a filter 5 are sequentially connected on the oil pipe 6. The filter 5 filters the grease during the oil circulation process, which can further improve the lubrication effect of the grease. The speed reducer 1 is provided with a high-speed shaft 2. The non-driving end of the original high-speed shaft 2 is extended by 80 mm after re-designing and manufacturing. The surface finish of the extended end is kept at the same precision as the bearing assembly part. The oil stain at the mating part is cleaned, and the flange of the gear oil pump 4 is fixedly connected to the bearing gland of the non-driving end of the high-speed shaft 2. The oil pipe 6 is a high-pressure rubber hose, which can meet the requirements of high pressure resistance, corrosion resistance, high temperature resistance, etc., improving production efficiency and safety.
[0019] When the utility model is specifically used, after starting up, leak point inspection is carried out. After confirming no leak points, the oil pump outlet hole is disassembled to check the oil supply situation of the gear oil pump 4. During normal production, the oil supply of the gear oil pump 4 is confirmed by the temperature of the filter 5, and the filter element of the filter 5 is replaced regularly. After the speed reducer is started, the high-speed shaft 2 drives the gear oil pump 4 to operate, pumping the oil fluid out from the oil outlet hole 3 of the speed reducer, passing through the gear oil pump 4 and the filter 5, and reaching the oil inlet hole 8 inside the bearing chamber of the output shaft bearing chamber 7, thereby realizing the lubrication of the output shaft of the speed reducer.
[0020] The speed reducer with a self-driven oil pump function provided by the utility model adopts the method of self-driving the oil pump of the speed reducer, without the need to add a driving motor, without the corresponding increase in energy consumption, and has a convenient installation method, good lubrication effect and low maintenance cost. The oil pump circulating lubrication method of the utility model has a better effect than dry oil forced lubrication. After the lubrication of the speed reducer is improved, the temperature of the speed reducer is stabilized at about 50 °C. A filter is installed in the oil pump pipeline to filter the grease during the oil circulation process, which can further improve the lubrication effect of the grease.
[0021] The above is only the preferred embodiment of the utility model and is not intended to limit the utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A reducer with a self-driven oil pump function, comprising a reducer, characterized in that: The reducer (1) is provided with a reducer oil outlet hole (3) at the front end, the reducer oil outlet hole (3) is connected to one end of an oil pipe (6), the other end of the oil pipe (6) is connected to a bearing chamber oil inlet hole (8) inside the output shaft bearing chamber (7), and a gear oil pump (4) is provided on the oil pipe (6).
2. The reducer with self-driven oil pump function according to claim 1, characterized in that: The reducer (1) is provided with a high-speed shaft (2), and the non-driving end of the high-speed shaft (2) is connected to the flange of the gear oil pump (4).
3. The reducer with self-driven oil pump function according to claim 1, characterized in that: The oil pipe (6) is provided with a filter (5).
4. The reducer with a self-driven oil pump function according to claim 1, characterized in that: The oil pipe (6) is a high-pressure rubber hose.