CN212080112U - Lubricating pressure regulating valve and automatic gearbox hydraulic control system using same - Google Patents
Lubricating pressure regulating valve and automatic gearbox hydraulic control system using same Download PDFInfo
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- CN212080112U CN212080112U CN202020702392.7U CN202020702392U CN212080112U CN 212080112 U CN212080112 U CN 212080112U CN 202020702392 U CN202020702392 U CN 202020702392U CN 212080112 U CN212080112 U CN 212080112U
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Abstract
The invention discloses a lubricating pressure regulating valve, which relates to the field of automobile gearboxes and comprises a valve core cavity, a valve core, a plug, a limiting spring and a pressure regulating spring, wherein one end of the valve core cavity is open and the other end is closed; the invention has simple oil circuit, compact structure and arrangement, avoids the independent control of the electromagnetic valve, has low cost, realizes the design of the gearbox on the small flow of the lubricating oil of the gearbox at low rotating speed and also realizes the requirement of higher flow at high rotating speed.
Description
Technical Field
The invention relates to an automobile gearbox, in particular to a novel lubricating pressure regulating valve and an automatic gearbox hydraulic control system comprising the lubricating pressure regulating valve.
Background
The lubrication of the automatic gearbox has an important influence on the performance of the whole box of mechanical parts. Parts in the gearbox which run at high speed, such as bearings, copper sleeves, gears and the like, need to be subjected to forced lubrication. The gearbox is under different operating modes, and each executive component is different to the demand of lubricating oil, often designs great lubricated oil mass for satisfying the demand of lubricated oil mass when traditional automatic transmission designs, and this fuel consumption that can the whole car of greatly increased in the car trade, in the automotive industry, the height of oil consumption often is an important index that influences consumer's selection, and along with the development of automotive industry, the market share of automatic fender car is more and more high, and people also more and more high to the oil consumption requirement of automatic fender car. When a new gearbox hydraulic system is designed, the lubricating pressure is controlled by increasing the proportional valve so as to reduce the loss of the lubricating flow, but the manufacturing cost of the gearbox hydraulic system is greatly increased by adding the proportional valve.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide a novel lubricating pressure regulating valve and an automatic transmission hydraulic control system using the same.
In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides a lubricating pressure regulating valve, includes case chamber, case, end cap, spacing spring and pressure regulating spring, case chamber one end opening sets up, and the other end seals the setting, the end cap with the open end sealing connection in case chamber, the case sets up case intracavity portion, pressure regulating spring one end is connected the end cap other end winding is in on the case, spacing spring one end with the blind end in case chamber is connected the other end winding and is in on the case.
Further, a pressure relief opening (S, C) and an oil inlet (A, B, D, E) are formed in the valve core cavity, and the pressure relief opening (S, C) is of an opening structure and is communicated with an oil tank, so that back pressure is avoided; the oil inlet A, B, D, E is a cylindrical groove and is respectively connected with different oil ways.
Furthermore, the valve core cavity comprises cavities with different sectional areas, the sectional areas of the cavities are sequentially reduced from the opening end to the closed end, and the design can enable the valve core cavity to generate air pressure with different sizes in the working process, so that the valve core is pushed to move left and right.
Further, the case is solid of revolution structure, and it is right to be used for respectively including first spacing post and the spacing post of second pressure regulating spring and spacing spring spacing and protection still include first sealed post, second sealed post and third sealed post, first sealed post and second sealed post opposite surface symmetry processing one lead the oil groove structure, the diameter of third sealed post slightly is less than first sealed post and second sealed post.
Furthermore, the length of the first limiting column is slightly shorter than the total length of the pressure regulating spring after the effective compression stroke, so that the centering performance of the spring can be effectively guaranteed, and the bending eccentric wear of the spring is prevented.
Further, the oil guide groove is a semicircular groove processed perpendicular to the processing surface and used for preferential oil inlet when the oil way is opened.
Furthermore, the plug is of a revolving body structure and comprises a clamp and a revolving sealing structure, and the clamp is fixed at the center of one end of the revolving sealing structure.
Furthermore, the clamping is the back taper structure, and this structure is favorable to fixing the clamping in the position that rotary seal structure terminal surface diameter is minimum.
Furthermore, the rightmost side of the rotary sealing structure is of a chamfer structure, so that the rotary sealing structure is convenient to mount.
The invention also provides a hydraulic control system of the automatic gearbox, and the lubricating pressure regulating valve is applied.
Has the advantages that: the lubricating pressure regulating valve provides a complete lubricating pressure control solution integrated in a gearbox hydraulic control system, the oil way is simple, the structural arrangement is compact, the independent control of an electromagnetic valve is avoided, the cost is low, the design of small flow of gearbox lubricating oil at low rotating speed is realized, the requirement of higher flow at high rotating speed of the gearbox is also realized, and the requirement of the tolerance degree of the gearbox oil pipe and the like to the lubricating pressure is also considered. The lubricating pressure regulating valve fully meets the requirements of the gearbox on the pressure and the flow of lubricating oil.
Drawings
Fig. 1 is a schematic structural view of the lubricating pressure regulating valve in this embodiment.
Fig. 2 is a schematic structural view of the valve element chamber in the present embodiment.
Fig. 3 is a schematic structural diagram of the plug in the present embodiment.
Fig. 4 is a schematic structural diagram of the valve element in the present embodiment.
In the figure, 1, a valve core cavity; 2. a valve core; 3. a plug; 4. a limiting spring; 5. a pressure regulating spring;
21. a first limit post; 22. a second limit post; 23. a first seal post; 24. a second seal post; 25. a third seal post; 26. an oil guide groove;
31. clamping; 32. a rotary seal structure;
A. d, B and E are oil inlets; s and C are pressure relief ports; f and G are closed oil chambers.
Detailed Description
The technical solution of the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.
The present embodiment provides a lubrication pressure regulating valve and a corresponding lubrication pressure regulating method, where the lubrication pressure regulating valve is composed of a valve core 2, a valve core cavity 1, a plug 3, a limit spring 4, and a pressure regulating spring 5. The main functions of the lubricating pressure regulating valve are as follows:
The specific composition is shown in figure 1, and the structure of the lubricating pressure regulating valve is schematic. Including case chamber 1, case 2, end cap 3, spacing spring 4 and pressure regulating spring 5, 1 one end opening in case chamber sets up, and the other end seals the setting, end cap 3 with the open end sealing connection in case chamber 1, case 2 sets up inside the case chamber 1, pressure regulating spring 5 one end is connected 3 other ends of end cap twines on the case 2, spacing spring 4 one end with the blind end of case chamber 1 is connected the other end and is twined on the case 2.
Preferably, a pressure relief port C, G and an oil inlet A, B, D, E are arranged on the valve core cavity 1, and the pressure relief port C, G is of an open structure and is communicated with an oil tank, so that back pressure is avoided; the oil inlet A, B, D, E is a cylindrical groove and is respectively connected with different oil ways.
Preferably, the spool chamber 1 includes 3 cavities with different sectional areas, and the sectional areas of the cavities become smaller from the open end to the closed end in sequence.
Preferably, the valve core 2 is a revolving body structure, and comprises a first limit column 21 and a second limit column 22 which are used for limiting and protecting the pressure regulating spring 5 and the limit spring 4 respectively, and further comprises a first seal column 23, a second seal column 24 and a third seal column 25, wherein an oil guide groove 26 is symmetrically processed on the opposite surfaces of the first seal column 23 and the second seal column 24, and the diameter of the third seal column 25 is slightly smaller than the first seal column 23 and the second seal column 24.
Preferably, the length of the first limit column 21 is slightly shorter than the total length of the pressure regulating spring 5 after the effective compression stroke, so that the centering performance of the spring can be effectively ensured, and the bending eccentric wear of the spring is prevented.
Preferably, the oil guide groove 26 is a semicircular groove processed perpendicular to the processing surface, and is used for preferential oil inlet when the oil path is opened.
Preferably, the plug 3 is a revolving body structure, and includes a clip 31 and a revolving sealing structure 32, and the clip 31 is fixed at the center of one end of the revolving sealing structure 32.
Preferably, the clip 31 is of an inverted conical structure, which facilitates fixing the clip 31 at a position where the diameter of the end face of the rotary seal structure 32 is the smallest.
Preferably, the rightmost side of the rotary seal structure 32 is a chamfered structure, which is convenient for installation.
The realization of the lubricating pressure regulating function of the lubricating pressure regulating valve of the embodiment is divided into 2 stages.
The first phase is a low speed (low gear) phase.
The stage is in a low gear, the rotating speed is low when the engine works normally, and the total lubricating flow capable of flowing to the lubricating pressure regulating valve is low at the moment. The plug 3 forms a fixed working stroke of the lubricating pressure control valve. Under the effect of pressure regulating spring 5 and spacing spring 4, under the initial condition, gearbox lubricating oil gets into from the A mouth of case chamber 1 at F mouth department, and a part of lubricating oil can get into the B mouth of case chamber 1 simultaneously, because case 2 under this condition, can move to the left side under the effect of gearbox oil, compresses pressure regulating spring 5. When the valve core 2 moves leftwards to enable the port A and the port C of the valve core cavity 1 to be communicated, the gearbox oil is discharged into an oil tank from the port C, in order to enable more gearbox oil to be capable of providing lubrication instead of being discharged, high pressure oil from the port G is provided at the port D and the port E of the valve core cavity 1 at low rotating speed, and the movement of the valve core 2 can be generated when the lubricating oil is high. Therefore, more lubricating oil participates in the lubrication of mechanical parts at low rotating speed, and the requirement on the lubricating flow can be met at low rotating speed.
The second phase is a high speed (high gear) phase.
When the gearbox enters a high-speed gear, the total lubricating flow which can flow to the lubricating pressure regulating valve is higher. Under the effect of pressure regulating spring 5 and spacing spring 4, under the initial condition, gearbox lubricating oil of F mouth department gets into from the A mouth of case chamber 1, and a part of lubricating oil can get into the B mouth of case chamber 1 simultaneously, because case 2 under this condition, can move to the left side under the effect of gearbox oil, compresses pressure regulating spring 5. When the valve core 2 moves leftwards to enable the port A and the port C of the valve core cavity 1 to be communicated, the oil of the gearbox is discharged into an oil tank from the port C, at the moment, no pressure oil is provided at the port D and the port E of the valve core cavity 1, and the movement of the valve core 2 only needs to overcome the force of the pressure regulating spring 5. Therefore, the lubricating oil can not generate higher oil pressure when the rotating speed is high, and the requirement on the lubricating flow can be met when the rotating speed is high.
The above embodiments are only for illustrating the technical idea of the present invention, and the protection scope of the present invention cannot be limited thereby, and any modification made on the basis of the technical scheme according to the technical idea proposed by the present invention falls within the protection scope of the present invention; the technology not related to the invention can be realized by the prior art.
Claims (10)
1. A lubrication pressure regulating valve characterized in that: including case chamber (1), case (2), end cap (3), spacing spring (4) and pressure regulating spring (5), case chamber (1) one end opening sets up, and the other end seals the setting, end cap (3) with the open end sealing connection in case chamber (1), case (2) set up inside case chamber (1), pressure regulating spring (5) one end is connected end cap (3) other end winding is in on case (2), spacing spring (4) one end with the blind end of case chamber (1) is connected the other end winding and is in on case (2).
2. The lubrication pressure regulating valve according to claim 1, wherein: the spool cavity (1) is provided with a pressure relief opening (S, C) and an oil inlet (A, B, D, E), and the pressure relief opening (S, C) is of an open structure and is communicated with an oil tank, so that back pressure is avoided; the oil inlet (A, B, D, E) is a cylindrical groove and is respectively connected with different oil ways.
3. The lubrication pressure regulating valve according to claim 1, wherein: the valve core cavity (1) comprises 3 cavities with different sectional areas, and the sectional areas of the cavities are sequentially reduced from the opening end to the closed end.
4. The lubrication pressure regulating valve according to claim 1, wherein: valve element (2) are solid of revolution structure, and it is right to be used for respectively including first spacing post (21) and second spacing post (22) pressure regulating spring (5) and spacing and protection of spring (4), still include first sealed post (23), second sealed post (24) and third sealed post (25), oil groove structure is led to first sealed post (23) and second sealed post (24) opposite surface symmetry processing, the diameter of third sealed post (25) slightly is less than first sealed post (23) and second sealed post (24).
5. The lubrication pressure regulating valve according to claim 4, wherein: the length of the first limiting column (21) is slightly shorter than the total length of the pressure regulating spring (5) in the using state, so that the centering performance of the spring can be effectively guaranteed, and the bending eccentric wear of the spring is prevented.
6. The lubrication pressure regulating valve according to claim 4, wherein: the oil guide groove is a semicircular groove which is processed perpendicular to the processing surface and is used for preferential oil inlet when the oil way is opened.
7. The lubrication pressure regulating valve according to claim 1, wherein: the plug (3) is of a rotary structure and comprises a clamp (31) and a rotary sealing structure (32), wherein the clamp (31) is fixed at the center of one end of the rotary sealing structure (32).
8. The lubrication pressure regulating valve according to claim 7, wherein: the clamping clip (31) is of an inverted cone structure, and the structure is favorable for fixing the clamping clip (31) at the position where the diameter of the end face of the rotary sealing structure (32) is minimum.
9. The lubrication pressure regulating valve according to claim 7, wherein: the rightmost side of the rotary sealing structure (32) is of a chamfer structure, so that the installation is convenient.
10. A hydraulic control system for an automatic transmission, characterized by: use of a lubricating pressure regulating valve according to one of the claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020702392.7U CN212080112U (en) | 2020-04-30 | 2020-04-30 | Lubricating pressure regulating valve and automatic gearbox hydraulic control system using same |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020702392.7U CN212080112U (en) | 2020-04-30 | 2020-04-30 | Lubricating pressure regulating valve and automatic gearbox hydraulic control system using same |
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| CN212080112U true CN212080112U (en) | 2020-12-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113639068A (en) * | 2021-06-30 | 2021-11-12 | 东风汽车集团股份有限公司 | Gearbox and electromagnetic valve thereof |
-
2020
- 2020-04-30 CN CN202020702392.7U patent/CN212080112U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113639068A (en) * | 2021-06-30 | 2021-11-12 | 东风汽车集团股份有限公司 | Gearbox and electromagnetic valve thereof |
| CN113639068B (en) * | 2021-06-30 | 2023-01-24 | 东风汽车集团股份有限公司 | Gearbox and electromagnetic valve thereof |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221109 Address after: 276800 West of Floor 1-2, Building 11, New Generation Information Technology Industrial Park, Gaoxin 7th Road, Rizhao Hi tech Zone, Shandong Province Patentee after: Rizhao Jinli Transmission Co.,Ltd. Address before: No.8, Huyue East Road, Longchi street, Liuhe District, Nanjing City, Jiangsu Province Patentee before: Nanjing Jinli Transmission Technology Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A lubricating pressure regulating valve and its application in automatic transmission hydraulic control system Effective date of registration: 20230424 Granted publication date: 20201204 Pledgee: Rizhao Bank Co.,Ltd. Rizhao High tech Sub branch Pledgor: Rizhao Jinli Transmission Co.,Ltd. Registration number: Y2023980038985 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |