Hydraulic oil pump body of automobile driving system
By incorporating a magnetic mesh and filter layer within the hydraulic pump body, the problem of tiny iron filings moving within the device is solved, improving the purity and energy conversion rate of the hydraulic oil and extending the device's service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO CHUANGZHI PRECISION COMPONENTS CO LTD
- Filing Date
- 2025-06-19
- Publication Date
- 2026-05-01
AI Technical Summary
In the existing automotive drive system, during the filtration process, tiny iron filings can easily move within the hydraulic pump body, leading to increased friction, accelerated wear, and affecting the efficiency and durability of the hydraulic system.
A magnetic mesh is installed in the hydraulic oil pump body to attract tiny iron filings, thereby improving the purity of the hydraulic oil. A filter layer and an adsorption layer are added in front of the oil inlet to purify the hydraulic oil.
It improves the purity of hydraulic oil, reduces wear on internal components caused by tiny iron filings, enhances energy conversion efficiency and transmission efficiency, and increases the durability and convenience of the device.
Smart Images

Figure CN224187745U_ABST
Abstract
Description
A hydraulic oil pump body for an automotive drive system Technical Field
[0001] This utility model relates to the field of automotive engineering technology, and in particular to a hydraulic oil pump body for an automotive drive system. Background Technology
[0002] In modern automotive drive systems, hydraulic technology is widely used in core functional modules such as automatic transmissions, power steering, and brake assist. The hydraulic pump, as the power source of the hydraulic system, converts mechanical energy into hydraulic energy, providing stable pressure and flow of hydraulic oil to various components. For example, in an automatic transmission, the oil pressure provided by the pump directly controls the shift valve's operation, achieving smooth gear shifting; the power steering system relies on the pump's hydraulic output to assist steering operation, reducing the driver's steering effort. Statistics show that in a car equipped with hydraulic power steering, the working state of the pump can reduce steering effort by 60%-70%. Its performance directly affects the vehicle's power transmission efficiency, handling responsiveness, and safety, making it an indispensable part of the automotive's core components. To ensure sufficient flow in the hydraulic system, traditional filters often sacrifice some filtration efficiency. When the flow rate increases, the pressure difference across the filter medium increases, and some contaminants may penetrate the filter medium under pressure, significantly reducing the filtration effect. This phenomenon is particularly pronounced in the hydraulic systems of large engineering vehicles.
[0003] In the prior art, a hydraulic oil pump body for an automotive drive system filters and purifies the hydraulic oil by setting a filter element to remove impurities from the hydraulic oil. However, in actual use, the rate at which the hydraulic oil enters the cylinder affects the working efficiency of the hydraulic cylinder. Therefore, the filter element is usually not a fine-pore filter element. As a result, tiny iron filings that fall off due to friction between machines during daily operation will wander inside the device, increasing the friction between transmission components and causing greater wear on the equipment. Over time, this will cause damage to the machinery. Therefore, we propose a hydraulic oil pump body for an automotive drive system. Summary of the Invention
[0004] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a hydraulic oil pump body for an automobile drive system, which improves the purity of hydraulic oil by setting a magnetic mesh to attract tiny iron filings mixed in the hydraulic oil through magnetic attraction.
[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:
[0006] A hydraulic oil pump body for an automotive drive system includes a pump body mechanism, a transmission mechanism is movably mounted in the middle of the inner end of the pump body mechanism, and a filter mechanism is fixedly mounted on the front side of the inner end of the pump body mechanism.
[0007] The filtration mechanism includes an oil inlet pipe, a filter layer fixedly installed at the front inner end of the oil inlet pipe, a filter element at the bottom inner end of the filter layer, and an adsorption layer fixedly installed at the end of the filter layer and at the inner end of the oil inlet pipe. A magnetic mesh is provided in the middle inner end of the adsorption layer. By setting the magnetic mesh, the device absorbs the tiny iron filings generated by daily mechanical friction, thereby improving the purity of the hydraulic oil, increasing the energy conversion rate of the device, and reducing the wear of the internal components of the device by tiny iron filings during use, thus improving the transmission efficiency and durability of the device.
[0008] Furthermore, the pump body mechanism includes a base, a pump body is disposed at the upper center of the base, a cylinder is disposed at the inner center of the pump body, a connecting hole is disposed on the upper side of the pump body, a side edge is disposed on the outer side of the pump body, an oil inlet is disposed at the inner center of the side edge, and a cover box is fixedly installed on the upper end of the pump body. A through hole is opened at the upper center of the cover box. The connection hole facilitates the installation and disassembly of the device, makes it easy to replace parts, and improves the convenience of using the device.
[0009] Furthermore, the transmission mechanism includes a moving shaft, with a transmission shaft located at the middle of the upper end of the moving shaft, and a gear fixedly connected to the lower side of the outer end of the moving shaft. By setting the moving shaft and the gear to rotate within the cylinder, mechanical energy is converted into hydraulic energy, thereby improving the energy conversion and utilization efficiency of the device.
[0010] Furthermore, the oil inlet pipe is fixedly connected to the front end of the oil inlet. The oil inlet pipe is adapted to the oil inlet. By adding a filter layer and an adsorption layer on the front side of the oil inlet, the hydraulic oil is purified, the quality of the hydraulic oil is improved, and thus the energy conversion rate of the device is improved.
[0011] Furthermore, there are two moving shafts, which are movably mounted on the inner end of the cylinder body.
[0012] Furthermore, the magnetic mesh is made of magnetic material and is compatible with the oil inlet pipe.
[0013] Furthermore, the transmission shaft passes through the through hole, and the transmission shaft is adapted to the through hole.
[0014] Furthermore, the number of gears is two, and the two gears are located at the inner end of the cylinder and mesh with each other.
[0015] In summary, this utility model has the following beneficial effects:
[0016] 1. By setting up a magnetic mesh, the device absorbs the tiny iron filings generated by daily mechanical friction, thereby improving the purity of the hydraulic oil and increasing the energy conversion rate of the device. At the same time, it can reduce the wear of the internal components of the device by tiny iron filings during use, thereby improving the transmission efficiency and durability of the device. The connection holes make the device easy to install and disassemble, and make it easy to replace parts, thus improving the convenience of the device during use.
[0017] 2. By setting the moving shaft and gear to rotate in the cylinder, mechanical energy is converted into hydraulic energy, which improves the energy conversion and utilization efficiency of the device. By adding a filter layer and an adsorption layer in front of the oil inlet, the hydraulic oil is purified, the quality of the hydraulic oil is improved, and thus the energy conversion rate of the device is improved. Attached Figure Description
[0018] Figure 1 is a schematic diagram of the overall structure in this embodiment;
[0019] Figure 2 is a three-dimensional structural diagram of the pump body mechanism in this embodiment;
[0020] Figure 3 is a three-dimensional structural diagram of the transmission mechanism in this embodiment;
[0021] Figure 4 is a three-dimensional structural diagram of the filtering mechanism from a first-view perspective in this embodiment;
[0022] Figure 5 is a three-dimensional structural diagram of the filtering mechanism from a second perspective in this embodiment.
[0023] In the diagram, 1. Pump body mechanism; 101. Connecting hole; 102. Pump body; 103. Cylinder; 104. Connecting hole; 105. Side edge; 106. Oil inlet; 107. Cover box; 108. Through hole; 2. Transmission mechanism; 201. Driving shaft; 202. Transmission shaft; 203. Gear; 3. Filter mechanism; 301. Oil inlet pipe; 302. Filter layer; 303. Filter element; 304. Adsorption layer; 305. Magnetic mesh. Detailed Implementation
[0024] The present invention will be further described in detail below with reference to the accompanying drawings.
[0025] Identical parts are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "bottom surface," "top surface," "inner," and "outer" refer to directions toward or away from the geometric center of a specific part, respectively.
[0026] Referring to Figures 1-5, a hydraulic oil pump body for an automobile drive system in a preferred embodiment of the present invention includes a pump body mechanism 1, a transmission mechanism 2 movably mounted in the middle of the inner end of the pump body mechanism 1, and a filter mechanism 3 fixedly mounted on the front side of the inner end of the pump body mechanism 1.
[0027] The filtration mechanism 3 includes an oil inlet pipe 301. A filter layer 302 is fixedly installed on the front side of the inner end of the oil inlet pipe 301. A filter element 303 is provided at the bottom of the inner end of the filter layer 302. An adsorption layer 304 is fixedly installed at the end of the filter layer 302 and located at the inner end of the oil inlet pipe 301. A magnetic mesh 305 is provided in the middle of the inner end of the adsorption layer 304. The magnetic mesh 305 is made of magnetic material and is adapted to the oil inlet pipe 301. By setting the magnetic mesh 305, the device absorbs the tiny iron filings generated by daily mechanical friction, improves the purity of the hydraulic oil, increases the energy conversion rate of the device, and reduces the wear of the internal components of the device by tiny iron filings during use, thereby improving the transmission efficiency and durability of the device.
[0028] Referring to Figures 1-2, the pump body mechanism 1 includes a base 101, a pump body 102 is provided at the upper center of the base 101, a cylinder 103 is provided at the inner center of the pump body 102, a connecting hole 104 is provided on the upper side of the pump body 102, a side edge 105 is provided on the outer side of the pump body 102, an oil inlet 106 is provided at the inner center of the side edge 105, a cover box 107 is fixedly installed on the upper end of the pump body 102, a through hole 108 is provided at the upper center of the cover box 107, a transmission shaft 202 passes through the through hole 108, and the transmission shaft 202 is adapted to the through hole 108. The connection hole 104 facilitates the installation and disassembly of the device, makes it easy to replace parts, and improves the convenience of using the device.
[0029] Referring to Figures 1-3, the transmission mechanism 2 includes a moving shaft 201, a transmission shaft 202 is provided at the middle of the upper end of the moving shaft 201, and a gear 203 is fixedly connected to the lower side of the outer end of the moving shaft 201. There are two gears 203, which are located at the inner end of the cylinder 103 and mesh with each other. There are two moving shafts 201, which are movably installed at the inner end of the cylinder 103. By setting the moving shaft 201 and the gear 203 to rotate in the cylinder 103, mechanical energy is converted into hydraulic energy, which improves the energy conversion and utilization efficiency of the device.
[0030] Referring to Figures 2-5, the oil inlet pipe 301 is fixedly connected to the front end of the oil inlet 106. The oil inlet pipe 301 is adapted to the oil inlet 106. By adding a filter layer 302 and an adsorption layer 304 to the front side of the oil inlet 106, the hydraulic oil is purified, the quality of the hydraulic oil is improved, and the energy conversion rate of the device is improved.
[0031] Specific implementation process: First, assemble the device, usually installing it near the oil tank and in a location convenient for power connection. Ensure the oil suction pipe is as short as possible and without bends to reduce oil suction resistance and prevent cavitation. Correctly distinguish between the oil suction port and the oil pressure port. The oil suction port connects to the oil tank, with a larger pipe diameter to reduce the oil suction flow rate; the oil pressure port connects to the system pipeline, with the pipe diameter selected according to the system flow requirements. Ensure good sealing during connection to avoid leakage. Reliably connect the pump body's moving shaft 201 to the engine crankshaft or motor shaft using a coupling to ensure coaxiality and prevent vibration and wear caused by eccentricity. Ensure the hydraulic oil level in the oil tank is within the specified range. Too low an oil level may cause the pump body to suck in air, generating noise and accelerating wear. Use hydraulic oil that meets system requirements and check the oil cleanliness. Purify the hydraulic oil through a filtration device. When the hydraulic oil passes through the filter layer 302, large particulate impurities are blocked by the filter element 303, and tiny iron filings in the hydraulic oil are adsorbed by the magnetic mesh 305 in the adsorption layer 304, which can prevent contaminants from entering the pump body and damaging components.
[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A hydraulic oil pump body for an automotive drive system, characterized in that: The system includes a pump body mechanism (1), a transmission mechanism (2) is movably installed in the middle of the inner end of the pump body mechanism (1), and a filter mechanism (3) is fixedly installed on the front side of the inner end of the pump body mechanism (1). The filter mechanism (3) includes an oil inlet pipe (301), a filter layer (302) is fixedly installed on the front side of the inner end of the oil inlet pipe (301), a filter element (303) is provided at the bottom of the inner end of the filter layer (302), an adsorption layer (304) is fixedly installed at the end of the filter layer (302) and located at the inner end of the oil inlet pipe (301), and a magnetic mesh (305) is provided in the middle of the inner end of the adsorption layer (304).
2. The hydraulic oil pump body of an automobile drive system according to claim 1, characterized in that: The pump body mechanism (1) includes a base (101), a pump body (102) is provided at the upper middle part of the base (101), a cylinder (103) is provided at the inner middle part of the pump body (102), a connecting hole (104) is provided on the upper side of the pump body (102), a side edge (105) is provided on the outer side of the pump body (102), an oil inlet (106) is provided at the inner middle part of the side edge (105), and a cover box (107) is fixedly installed on the upper end of the pump body (102), and a through hole (108) is opened at the upper middle part of the cover box (107).
3. The hydraulic oil pump body of an automobile drive system according to claim 2, characterized in that: The transmission mechanism (2) includes a moving shaft (201), a transmission shaft (202) is provided at the middle of the upper end of the moving shaft (201), and a gear (203) is fixedly connected to the lower side of the outer end of the moving shaft (201).
4. The hydraulic oil pump body of an automobile drive system according to claim 2, characterized in that: The oil inlet pipe (301) is fixedly connected to the front end of the oil inlet (106), and the oil inlet pipe (301) is adapted to the oil inlet (106).
5. The hydraulic oil pump body of an automobile drive system according to claim 3, characterized in that: The number of the moving shafts (201) is two, and the two moving shafts (201) are movably installed on the inner end of the cylinder body (103).
6. The hydraulic oil pump body of an automobile drive system according to claim 1, characterized in that: The magnetic mesh (305) is made of magnetic material and is compatible with the oil inlet pipe (301).
7. The hydraulic oil pump body of an automobile drive system according to claim 3, characterized in that: The transmission shaft (202) passes through the through hole (108), and the transmission shaft (202) is adapted to the through hole (108).
8. The hydraulic oil pump body of an automobile drive system according to claim 3, characterized in that: The number of gears (203) is two, and the two gears (203) are located at the inner end of the cylinder (103) and mesh with each other.