Air compressor oil change device
Patent Information
- Application Number
- CN202522726658.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-23
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2035-12-23
AI Technical Summary
然而，该种手动更换方式存在诸多显著缺陷：一方面，受内燃机车空气压缩机安装空间的限制，作业人员操作活动范围狭小，导致油脂沾取清理过程极为困难，作业效率低下，无法满足企业设备快速维护的需求；另一方面，压缩机内部存在活塞连杆螺栓开口销等尖锐部件，在狭小空间内进行手动操作时，作业人员手臂极易被碰伤，存在较大的安全隐患
[0011]本实用新型利用双向油泵抽取空气压缩机油底壳内变质油脂，并利用双向油泵的反向吸油功能将新的油脂打入空压机，本装置结构简单，操作方便，不仅能够有效提高换油作业效率，而且可消除以往手动换油容易碰伤手的安全隐患，保证设备和操作人员的安全。
Smart Images
Figure CN224904596U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a device that can quickly and safely replace deteriorated grease in an air compressor, belonging to the field of maintenance equipment technology. Background Technology
[0002] During the operation of an air compressor, the lubricating grease inside may emulsify or deteriorate. If it is not replaced in time, it will seriously affect the operational stability and service life of the air compressor. Therefore, the regular replacement of lubricating grease is a key part of the maintenance of air compressors.
[0003] In applications such as metallurgical enterprises, taking the air compressor of an internal combustion locomotive as an example, the commonly used method for grease replacement in the industry is to manually open the air compressor's side cover, rotate the crankshaft to the appropriate position, and then repeatedly use tools such as sponges to remove the deteriorated emulsified grease from the oil pan until the deteriorated grease is cleaned out, and finally add new grease. However, this manual replacement method has many significant drawbacks: on the one hand, due to the limited installation space of the internal combustion locomotive air compressor, the operator's range of motion is narrow, making the grease removal and cleaning process extremely difficult and inefficient, failing to meet the needs of enterprises for rapid equipment maintenance; on the other hand, the compressor contains sharp parts such as piston connecting rod bolts and cotter pins, and when manually operating in a confined space, the operator's arms are easily injured, posing a significant safety hazard.
[0004] In summary, existing methods for changing grease in air compressors are inconvenient, inefficient, and unsafe, failing to effectively address the issues of thoroughly cleaning and efficiently replacing deteriorated grease. They also cannot meet the actual needs of enterprise equipment maintenance. Therefore, there is an urgent need for a technical solution that can quickly and safely clean deteriorated grease and efficiently add new grease to overcome the shortcomings of existing technologies. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing an air compressor grease replacement device that can quickly and safely replace deteriorated grease inside the air compressor, ensuring the safety of equipment and personnel.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: An air compressor grease replacement device comprises a waste oil valve, an oil injection valve, a waste oil recovery tank, a new oil storage tank, a bidirectional oil pump, and a drive motor. One port of the bidirectional oil pump is connected to the inner cavity of the oil pan of the air compressor via an oil pipe, and the other port of the bidirectional oil pump is connected to one port of the waste oil valve and the oil injection valve via an oil pipe. The other ports of the waste oil valve and the oil injection valve are respectively connected to the waste oil recovery tank and the new oil storage tank via oil pipes.
[0007] The aforementioned air compressor grease replacement device also includes a cleaning valve and a cleaning agent tank. One port of the cleaning valve is connected to the oil pipe between the bidirectional oil pump, the waste oil valve, and the oil injection valve, and the other port of the cleaning valve is connected to the cleaning agent tank.
[0008] In the aforementioned air compressor grease replacement device, the waste oil valve, cleaning valve, and oil injection valve are all manually shut-off valves.
[0009] In the aforementioned air compressor grease replacement device, the bidirectional oil pump is a bidirectional gear pump, a bidirectional vane pump, or a bidirectional plunger pump.
[0010] In the aforementioned air compressor grease replacement device, the drive motor is a DC motor or an AC motor.
[0011] This invention utilizes a bidirectional oil pump to extract deteriorated grease from the oil pan of an air compressor, and uses the reverse suction function of the bidirectional oil pump to pump new grease into the air compressor. This device has a simple structure and is easy to operate. It can not only effectively improve the efficiency of oil change operations, but also eliminate the safety hazards of manual oil change that could easily injure hands, ensuring the safety of equipment and operators. Attached Figure Description
[0012] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0013] Figure 1 This is a schematic diagram of the structure of this utility model.
[0014] The labels in the diagram are as follows: V1, waste oil valve; V2, cleaning valve; V3, oil injection valve; T1, waste oil recovery tank; T2, cleaning agent tank; T3, new oil storage tank; BP, bidirectional oil pump; M, drive motor; AC, air compressor. Detailed Implementation
[0015] See Figure 1 This utility model mainly includes a waste oil valve V1, a cleaning valve V2, an oil injection valve V3, a waste oil recovery tank T1, a cleaning agent tank T2, a new oil storage tank T3, a bidirectional oil pump BP, a drive motor M, and matching oil pipes. One oil port of the bidirectional oil pump BP is connected to the inner cavity of the oil sump of the air compressor AC through an oil pipe. The other oil port of the bidirectional oil pump BP is connected to one oil port of the waste oil valve V1, the cleaning valve V2, and the oil injection valve V3 through an oil pipe. The other oil ports of the waste oil valve V1, the cleaning valve V2, and the oil injection valve V3 are respectively connected to the waste oil recovery tank T1, the cleaning agent tank T2, and the new oil storage tank T3 through oil pipes.
[0016] Waste oil valve V1, cleaning valve V2, and oil injection valve V3 are all manual shut-off valves used to control the on / off state of their respective pipelines. Waste oil recovery tank T1 is used to collect deteriorated grease and cleaning waste liquid extracted from air compressor AC. Cleaning agent tank T2 is used to hold cleaning agent, and new oil storage tank T3 is used to hold qualified grease. The bidirectional oil pump BP is a bidirectional gear pump, bidirectional vane pump, or bidirectional plunger pump used to extract deteriorated grease and cleaning waste liquid from air compressor AC and inject it into waste oil recovery tank T1, or to inject cleaning agent from cleaning agent tank T2 and qualified grease from new oil storage tank T3 into air compressor AC.
[0017] The drive motor M is a DC motor or an AC motor, which is connected to the bidirectional oil pump BP through a coupling. The direction of oil delivery of the bidirectional oil pump BP can be controlled by changing the direction of rotation.
[0018] The method of using this utility model is as follows: 1. Open the side cover of the air compressor and insert the oil pipe connected to one of the oil ports of the two-way oil pump BP into the oil pan of the air compressor AC. 2. Close the cleaning valve V2 and the oil injection valve V3, open the waste oil valve V1, start the drive motor M to drive the bidirectional oil pump BP to run in the forward direction, and suck the emulsified waste oil in the air compressor into the waste oil recovery box T1. 3. Close the waste oil valve V1, open the cleaning valve V2, start the drive motor M to drive the bidirectional oil pump BP to run in reverse, and inject the cleaning agent in the cleaning agent tank T2 into the air compressor. 4. Disconnect the oil pipe from the AC of the air compressor, start the air compressor and run it idle for 5-10 minutes, then use a cleaning agent to thoroughly clean the emulsified waste oil inside the air compressor. 5. Reinsert the oil pipe into the air compressor, close the cleaning valve V2, open the waste oil valve V1, start the drive motor M to drive the bidirectional oil pump BP to run in the forward direction, and suck the cleaning waste liquid in the air compressor into the waste oil recovery tank T1. 6. Close the waste oil valve V1, open the oil injection valve V3, start the drive motor M to drive the bidirectional oil pump BP to run in reverse, and inject the qualified grease in the new oil storage tank T3 into the air compressor AC. 7. Disconnect the oil pipe from the air compressor AC, install the air compressor cover, and complete the air compressor grease replacement.
[0019] For the air compressor of the internal combustion locomotive, the drive motor M is preferably a DC motor. If the drive motor M is an AC motor, a power inverter is required to convert the 110V DC power of the internal combustion locomotive into 220V AC power to power the drive motor M.
[0020] This invention utilizes a bidirectional oil pump to extract deteriorated grease from the oil pan of an air compressor, completely solving the problem of grease buildup. Simultaneously, the reverse suction function of the bidirectional oil pump injects fresh grease into the air compressor's oil pan. This device has a simple structure, is easy to operate, and has high work efficiency, improving operational efficiency while eliminating the safety hazards of manual operation that could easily lead to hand injuries.
Claims
1. An air compressor grease replacement device, characterized in that, The system comprises a waste oil valve (V1), an oil injection valve (V3), a waste oil recovery tank (T1), a new oil storage tank (T3), a two-way oil pump (BP), and a drive motor (M). One port of the two-way oil pump (BP) is connected to the inner cavity of the oil sump of the air compressor (AC) via an oil pipe. The other port of the two-way oil pump (BP) is connected to one port of the waste oil valve (V1) and the oil injection valve (V3) via an oil pipe. The other ports of the waste oil valve (V1) and the oil injection valve (V3) are respectively connected to the waste oil recovery tank (T1) and the new oil storage tank (T3) via oil pipes.
2. The air compressor grease replacement device according to claim 1, characterized in that, It also includes a cleaning valve (V2) and a cleaning agent tank (T2). One port of the cleaning valve (V2) is connected to the oil pipe between the two-way oil pump (BP), the waste oil valve (V1) and the oil injection valve (V3), and the other port of the cleaning valve (V2) is connected to the cleaning agent tank (T2).
3. The air compressor grease replacement device according to claim 2, characterized in that, The waste oil valve (V1), cleaning valve (V2), and oil injection valve (V3) are all manual shut-off valves.
4. An air compressor grease replacement device according to any one of claims 1-3, characterized in that, The bidirectional oil pump (BP) is a bidirectional gear pump, a bidirectional vane pump, or a bidirectional plunger pump.
5. The air compressor grease replacement device according to claim 4, characterized in that, The drive motor (M) is a DC motor or an AC motor.