Guide wheel shaft of oil pump
By designing the oil pump guide shaft and using a combination of driving gears and gears, the problems of unstable operation, high noise and unstable oil flow of the oil pump are solved, and lightweight and smooth operation are achieved.
Patent Information
- Application Number
- CN202422557843.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-22
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-10-22
AI Technical Summary
The existing oil pumps have complex structures, large sizes and heavy weights, resulting in unstable operation, high noise and unstable oil flow.
An oil pump guide wheel shaft is designed, including a drive gear, a driving gear, a cam shaft, an oil cavity, a concave shaft and a driven gear, providing support and ensuring rotational stability, transmitting power through appropriate clearance to pump oil, avoiding wear and efficiency reduction.
It achieves the effects of simple structure, small size, light weight, large oil transmission, stable operation, low noise and stable oil flow.
Smart Images

Figure CN223075985U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of idler shafts, in particular to an idler shaft of an oil pump. Background Art
[0002] The oil pump is an indispensable component in an automobile engine. It is responsible for pumping oil from the oil pan and sending it to the oil filter and each lubricating oil passage through pressurization technology to ensure that all the main moving parts of the engine are fully lubricated. When the engine is running, the oil pump works continuously, making the oil circulate in the lubricating oil circuit, so as to ensure that the engine obtains a good lubrication effect. When the engine is running, the oil pump will work continuously, making the oil circulate continuously in the lubricating oil circuit, so as to ensure that all the moving parts of the engine can be fully lubricated.
[0003] In the process of using the existing oil pump, most of them have a complex structure, a large volume and a heavy weight. The oil pump usually consists of a gear pump body, etc. When the engine works, the camshaft will drive the driving gear of the pump body to rotate, so as to realize the circulation of oil. The role of the oil pump in the automobile engine is very important. It can not only pump oil from the oil pan, but also send the oil to each lubricating point of the engine through pressurization technology, playing the roles of lubrication, cooling and cleaning, resulting in problems such as unstable operation, large noise and unstable oil flow.
[0004] Therefore, aiming at the problems of unstable operation, large noise and unstable oil flow of the above-mentioned oil pump, it is possible to design an oil pump that may adopt more advanced technology, has a simple structure, a small volume, a light weight, a large oil delivery volume. The oil pump is an indispensable component in the engine, and its function is to pump oil from the oil pan and send it to the oil filter and each lubricating point after pressurization to ensure that all the moving parts of the engine are well lubricated. Content of the Utility Model
[0005] In order to overcome the problems of complex structure, large volume and heavy weight of the oil pump, resulting in unstable operation, large noise and unstable oil flow.
[0006] The technical solution of the utility model is: an idler shaft of an oil pump, which includes a driving gear, and also includes a driving gear for rotation and a camshaft for storing the pump, as well as an oil cavity, a concave camshaft, a driven gear and a pump wall.
[0007] Preferably, it can provide support for the idler wheel, ensure the stability of its rotation, transmit the power of the driving device to the idler wheel, make the idler wheel rotate to pump oil, ensure an appropriate gap between the idler wheel and the inner wall of the oil pump body, avoid the decrease of pumping efficiency or wear caused by improper gap, and has the characteristics of simple structure, small volume, light weight and large oil delivery volume, stable operation, small noise, relatively stable oil flow and relatively stable movement.
[0008] Preferably, a driving gear is provided at the lower end of the driving gear.
[0009] Preferably, a camshaft is fixedly connected to the lower end of the driving gear.
[0010] Preferably, an oil cavity is provided inside the camshaft.
[0011] Preferably, a concave camshaft is fixedly connected to the lower end of the camshaft.
[0012] Preferably, a driven gear is fixedly connected to the lower end of the concave camshaft.
[0013] Preferably, a pump wall is provided inside the camshaft.
[0014] Advantages of the present utility model:
[0015] 1. The present model can provide support for the guide wheel, ensure the stability of its rotation, transmit the power of the driving device to the guide wheel, enable the guide wheel to rotate to pump engine oil, ensure an appropriate gap between the guide wheel and the inner wall of the oil pump body, avoid a decrease in pumping efficiency or wear caused by an improper gap, and has the characteristics of simple structure, small size, light weight, large oil output, smooth operation, low noise, relatively smooth oil flow, and relatively smooth movement. Description of the Drawings
[0016] Figure 1 Shown is a front structural schematic diagram of the oil pump of the present utility model;
[0017] Figure 2 Shown is a side structural schematic diagram of the oil pump of the present utility model;
[0018] Figure 3 Shown is a front exploded structural schematic diagram of the oil pump of the present utility model;
[0019] Figure 4 Shown is a side exploded structural schematic diagram of the oil pump of the present utility model.
[0020] Description of the reference numerals: 1, driving gear; 2, driving gear; 3, camshaft; 4, oil cavity; 5, concave camshaft; 6, driven gear; 7, pump wall. Detailed Embodiment
[0021] The present utility model will be further described below with reference to the drawings and embodiments.
[0022] Please refer to Figures 1 - 4 , the present utility model provides an embodiment: an oil pump guide wheel shaft, including a driving gear 1, and further including a driving gear 2 for rotation and a camshaft 3 for storing the pump, as well as an oil cavity 4, a concave camshaft 5, a driven gear 6, and a pump wall 7.
[0023] Please refer to Figures 2 - 4 , in this embodiment, a driving gear 1 is provided at the lower end of the camshaft 3, a driving gear 2 is fixedly connected to the lower end of the driving gear 1, a camshaft 3 is fixedly connected to the lower end of the driving gear 2, an oil cavity 4 is formed inside the camshaft 3, a concave camshaft 5 is fixedly connected to the lower end of the camshaft 3, a driven gear 6 is fixedly connected to the lower end of the concave camshaft 5, and a pump wall 7 is arranged inside the camshaft 3. When the engine works, the driving gear 1 on the camshaft 3 drives the guide wheel shaft of the oil pump, causing the driving gear 2 fixed on the driving gear shaft to rotate, thereby driving the driven gear 6 to rotate in the opposite direction, sending the engine oil from the oil inlet cavity 4 along the tooth gap and the pump wall 7 to the oil outlet cavity 4. In this way, a low pressure is formed at the oil inlet cavity 4 to generate suction, sucking the engine oil in the oil sump into the oil cavity 4. Since the driving gear 2 and the driven gear 6 rotate continuously, the engine oil is continuously pumped to the required parts.
[0024] When working, when the engine works, the driving gear 1 on the camshaft 3 drives the guide wheel shaft of the oil pump, causing the driving gear 2 fixed on the driving gear shaft to rotate, thereby driving the driven gear 6 to rotate in the opposite direction, sending the engine oil from the oil inlet cavity 4 along the tooth gap and the pump wall 7 to the oil outlet cavity 4. In this way, a low pressure is formed at the oil inlet cavity 4 to generate suction, sucking the engine oil in the oil sump into the oil cavity 4. Since the driving gear 2 and the driven gear 6 rotate continuously, the engine oil is continuously pumped to the required parts.
[0025] Through the above steps, the present invention can provide support for the guide wheel, ensure the stability of its rotation, transmit the power of the driving device to the guide wheel, make the guide wheel rotate to pump engine oil, ensure an appropriate gap between the guide wheel and the inner wall of the oil pump body, avoid the decrease in pumping efficiency or wear caused by improper gap, and has the characteristics of simple structure, small volume, light weight, and large oil delivery volume, with stable operation, low noise, relatively stable oil flow, and relatively stable movement.
Claims
1. An oil pump guide wheel shaft, comprising a drive gear (1); characterized in that: It also includes a driving gear (2) for rotation and a camshaft (3) for storing the pump, as well as an oil cavity (4), a camshaft (5), a driven gear (6), and a pump wall (7).
2. The oil pump guide wheel shaft according to claim 1, characterized in that: A driving gear (1) is provided with a driving gear (2) at its lower end.
3. The oil pump guide wheel shaft according to claim 2, characterized in that: The lower end of the driving gear (2) is fixedly connected to a camshaft (3).
4. The oil pump guide wheel shaft according to claim 3, characterized in that: An oil cavity (4) is formed inside the camshaft (3).
5. The oil pump guide wheel shaft according to claim 4, wherein: The lower end of the camshaft (3) is fixedly connected to a camshaft (5).
6. The oil pump guide wheel shaft according to claim 5, characterized in that: The lower end of the camshaft (5) is fixedly connected to a driven gear (6).
7. The oil pump guide wheel shaft according to claim 6, characterized in that: A pump wall (7) is arranged inside the camshaft (3).