CN211550131U - Pressure regulating valve of transmission - Google Patents
Pressure regulating valve of transmission Download PDFInfo
- Publication number
- CN211550131U CN211550131U CN202020168624.5U CN202020168624U CN211550131U CN 211550131 U CN211550131 U CN 211550131U CN 202020168624 U CN202020168624 U CN 202020168624U CN 211550131 U CN211550131 U CN 211550131U
- Authority
- CN
- China
- Prior art keywords
- oil
- groove
- valve
- mounting hole
- valve core
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000001105 regulatory effect Effects 0.000 title claims description 22
- 230000005540 biological transmission Effects 0.000 title claims description 21
- 230000035945 sensitivity Effects 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 156
- 239000010720 hydraulic oil Substances 0.000 description 17
- 230000000694 effects Effects 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Landscapes
- Gear-Shifting Mechanisms (AREA)
- Control Of Transmission Device (AREA)
Abstract
The utility model provides a derailleur air-vent valve belongs to car technical field. It has solved the problem that current derailleur air-vent valve influences the shift travelling comfort. This derailleur air-vent valve, including valve body and columnar case, the case slides and sets up in the valve body, form the pressure chamber between the one end terminal surface of case and the valve body inner wall, the mounting hole has been seted up on the other end terminal surface of case, seted up the oil groove on the case outer wall, set up on the valve body inner wall can with the oil feed tank of crossing the oil groove intercommunication, go out oil groove and oil drain groove, and the oil feed tank, go out the oil groove, oil drain groove and pressure chamber are arranged along the case axial in proper order, be equipped with the spring that supports and lean on the mounting hole bottom surface in the mounting hole, set up the oil hole of crossing with. This derailleur air-vent valve can improve control sensitivity, and then improves the travelling comfort of shifting.
Description
Technical Field
The utility model belongs to the technical field of the car, a derailleur air-vent valve is related to.
Background
With the popularization of household cars, the market share of automatic transmissions will become higher and higher, and a clutch needs to be controlled by a hydraulic system in the automatic transmission to realize gear shifting, and the hydraulic system is hydraulically controlled by a pressure regulating valve, for example, an electromagnetic proportional pressure regulating valve in an automobile transmission disclosed in patent document (application number: 200680007711.5) comprises at least one magnetic part, a hydraulic part and a spring type element which is effectively connected between the magnetic part and the hydraulic part, wherein the magnetic part comprises at least one coil, an armature and an armature tie rod, and the hydraulic part comprises at least one first closing element and one second closing element.
Disclosure of Invention
The utility model aims at having the above-mentioned problem to current technique, provided a derailleur air-vent valve to improve control sensitivity, and then improve the travelling comfort of shifting.
The purpose of the utility model can be realized by the following technical proposal: the utility model provides a derailleur air-vent valve, includes valve body and columnar case, the case slides and sets up in the valve body, its characterized in that, form the pressure chamber between the one end terminal surface of case and the valve body inner wall, seted up the mounting hole on the other end terminal surface of case, seted up the oil groove on the case outer wall, set up on the valve body inner wall can with the oil inlet tank of crossing the oil groove intercommunication, go out oil groove and oil drain groove, and oil inlet tank, play oil groove, oil drain groove and pressure chamber arrange along the case axial in proper order, be equipped with the spring that supports and lean on the mounting hole bottom surface in the mounting hole, set up the oil hole of crossing with crossing oil groove intercommunication on the mounting hole.
The pressure cavity is connected with the electromagnetic valve, the electromagnetic valve controls the oil supply to the pressure cavity, the oil inlet groove is connected with the oil pump and is also controlled by the electromagnetic valve, the oil outlet groove is connected with the cavity where the clutch piston is located, the electromagnetic valve controls the oil inlet of the pressure cavity during operation, the oil pressure in the pressure cavity pushes the valve core to move, so that the oil passing groove is communicated with the oil inlet groove and the oil outlet groove, the electromagnetic valve controls the oil pump to supply oil to the oil inlet groove, the hydraulic oil in the oil inlet groove enters the piston cavity through the oil passing groove and the oil outlet groove, and part of the hydraulic oil in the oil passing groove enters the mounting hole through the oil passing hole, so that the same oil pressure as that in the oil inlet groove is arranged in the mounting hole, the area of the bottom surface is smaller than that of the end surface of the valve core, at the moment, the hydraulic oil, the pressure that comes reverse auxiliary spring and pressure chamber through the oil pressure in the piston cavity reaches balancedly promptly, therefore the control sensitivity of case is higher, and then improve the travelling comfort of shifting, and is same, when the oil pressure in the solenoid valve control pressure chamber reduces, the case removes to pressure chamber one end, make oil passing groove and oil outlet groove and oil drain groove intercommunication, the piston cavity is through oil outlet groove, oil passing groove and oil drain groove carry out the oil drain, the interior oil pressure of piston cavity reduces, the oil pressure in the mounting hole also reduces simultaneously, the case removes to keeping away from pressure chamber one end, oil passing groove and oil drain groove disconnection, make the case reach balancedly once more.
In the above pressure regulating valve for a transmission, the oil inlet groove, the oil outlet groove and the oil drain groove are all annular grooves circumferentially arranged along the inner wall of the valve body, and the oil passing groove is an annular groove circumferentially arranged along the outer wall of the valve core. Are all annular grooves, even if the valve core rotates, the mutual communication can be ensured, and the stability is improved.
In the pressure regulating valve for the transmission, the width of the oil passing groove is larger than the distance between the oil inlet groove and the oil outlet groove and the distance between the oil outlet groove and the oil drain groove, and the width of the oil passing groove is smaller than the distance between the oil inlet groove and the oil drain groove. The oil groove is only communicated with the oil inlet groove and the oil outlet groove or the oil outlet groove and the oil discharge groove at any stage, so that oil inlet and oil discharge of the piston cavity are realized, and the oil pressure in the piston cavity is adjusted.
In the pressure regulating valve for the transmission, the oil passing hole comprises an axial section and a radial section, the axial section is axially arranged along the valve core, the radial section is radially arranged along the valve core, one end of the axial section is communicated with the mounting hole, the other end of the axial section is communicated with one end of the radial section, and the other end of the radial section is communicated with the oil passing groove. The hydraulic oil in the oil passing groove flows into the mounting hole through the radial section and the axial section.
In the above pressure regulating valve for a transmission, the diameter of the mounting hole is larger than the diameter of the axial section, and the diameter of the axial section is larger than the diameter of the radial section. The area of the bottom surface of the mounting hole is smaller, and the spring is assisted to balance the valve core by combining with hydraulic oil in the mounting hole.
In the pressure regulating valve for the transmission, an annular step surface is formed between the mounting hole and the axial section, and the spring abuts against the step surface. The hydraulic oil in the mounting hole acts on the step surface, so that thrust is generated to the direction.
In the pressure regulating valve for the transmission, a columnar plug is fixed in the valve body and fixed through a limiting pin, the pressure cavity is formed among the end face of the valve core, the inner wall of the valve body and the end face of the plug, and when the end face of the valve core abuts against the end face of the plug, the oil passing groove is communicated with the oil outlet groove and the oil discharge groove. When the electromagnetic valve does not work, no oil pressure exists in the pressure cavity, the valve core moves and abuts against the plug at the moment, and the oil outlet groove is communicated with the oil drainage groove through the oil drainage groove, so that oil drainage is performed on the piston cavity.
In the pressure regulating valve for a transmission, a boss is further arranged on the end face of the valve core opposite to the plug, and the outer diameter of the boss is smaller than that of the valve core. When the valve core is abutted against the end face of the plug, the boss can enable hydraulic oil to enter between the end face of the valve core and the end face of the plug, so that the valve core is pushed.
Compared with the prior art, the pressure regulating valve of the transmission has the following advantages:
1. because the oil hole has been seted up to the mounting hole bottom surface, consequently the bottom surface area is less than case terminal surface area, and the hydraulic oil in the mounting hole acts on the mounting hole bottom surface this moment, in addition the elasticity of spring to reach balanced with the effort that the hydraulic oil acted on the case terminal surface in the pressure chamber, come reverse auxiliary spring and pressure chamber's pressure through the oil pressure in the piston cavity promptly and reach balanced, therefore the control sensitivity of case is higher, and then improves the travelling comfort of shifting.
Drawings
Fig. 1 is a schematic diagram of a pressure regulating valve of a transmission.
Figure 2 is a schematic representation of the piston chamber when filled with oil.
Fig. 3 is a schematic view of the piston chamber when it is drained.
In the figure, 1, a valve body; 11. a pressure chamber; 12. an oil inlet groove; 13. an oil outlet groove; 14. an oil drain tank; 2. a valve core; 21. mounting holes; 22. an oil passing groove; 23. an oil passing hole; 231. an axial section; 232. a radial segment; 24. a boss; 25. a step surface; 3. a spring; 4. a plug; 5. a spacing pin; 6. an electromagnetic valve; 7. an oil pump; 8. a piston chamber.
Detailed Description
The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
As shown in fig. 1, the pressure regulating valve for the transmission comprises a valve body 1 and a columnar valve core 2, wherein the valve core 2 is arranged in the valve body 1 in a sliding manner, a columnar plug 4 is fixed at one end in the valve body 1, the plug 4 is fixed through a limit pin 5, a pressure chamber 11 is formed among an end face at one end of the valve core 2, the inner wall of the valve body 1 and the end face of the plug 4, a boss 24 is further arranged on the end face of the valve core 2 opposite to the plug 4, and the outer diameter of the boss 24 is smaller than that of the valve core 2. The other end of the valve core 2 has a mounting hole 21, the outer wall of the valve core 2 has an oil groove 22, the inner wall of the valve body 1 has an oil inlet groove 12, an oil outlet groove 13 and an oil discharge groove 14, the oil inlet groove 12, the oil outlet groove 13, the oil discharge groove 14 and the pressure chamber 11 are sequentially arranged along the axial direction of the valve core 2, the bottom surface of the mounting hole 21 has an oil passing hole 23, the oil passing hole 23 comprises an axial section 231 axially arranged along the axial direction of the valve core 2 and a radial section 232 radially arranged along the axial direction of the valve core 2, one end of the axial section 231 is communicated with the mounting hole 21, the other end of the axial section is communicated with one end of the radial section 232, and the other. The aperture of the mounting hole 21 is larger than that of the axial section 231, the aperture of the axial section 231 is larger than that of the radial section 232, an annular step surface 25 is formed between the mounting hole 21 and the axial section 231, a spring 3 is arranged in the mounting hole 21, one end of the spring 3 abuts against the inner end surface of the valve body 1, and the other end of the spring 3 abuts against the step surface 25. The oil inlet tank 12, oil outlet tank 13 and oil drain tank 14 are the ring channel that sets up along 1 inner wall circumference of valve body, cross oil tank 22 and be the ring channel that sets up along 2 outer wall circumferences of case, the width of crossing oil tank 22 is greater than the interval between oil inlet tank 12 and the oil outlet tank 13 and the interval between oil outlet tank 13 and the oil drain tank 14, the width of crossing oil tank 22 is less than the interval between oil inlet tank 12 and the oil drain tank 14, it is linked together with oil outlet tank 13 and the oil drain tank 14 to cross oil tank 22 when case 2 terminal surfaces and end cap 4 terminal surfaces counterbalance lean on, pressure chamber 11 links to each other with solenoid valve 6, solenoid valve 6 control supplies oil to pressure chamber 11, oil inlet tank 12 links to each other with oil pump 7, equally by solenoid valve 6 control, oil outlet tank 13 links to each other with clutch piston.
Referring to fig. 2, when oil is filled into the piston cavity 8, the electromagnetic valve 6 outputs oil pressure into the pressure cavity 11, hydraulic oil acts on the end face of the valve core 2, the valve core 2 overcomes the elastic force of the spring 3 and moves towards the end far away from the plug 4 under the action of the oil pressure in the pressure cavity 11, the oil passing groove 22 is respectively communicated with the oil inlet groove 12 and the oil outlet groove 13, hydraulic oil output by the oil pump 7 enters from the oil inlet groove 12 of the valve body 1, passes through the oil groove 22 and then enters the piston cavity 8 from the oil outlet groove 13, meanwhile, a part of the hydraulic oil passing through the oil groove 22 enters the mounting hole 21 through the oil passing hole 23 and acts on the step face 25, and when the sum of the acting force of the hydraulic oil acting on the adjusting face and the elastic force of the spring 3 in the mounting hole 21 is the same as the acting force acting on the end face of the valve core 2.
When the output oil pressure of the electromagnetic valve 6 is small, the acting force of the hydraulic oil in the pressure cavity 11 on the end face of the valve core 2 is small, the valve core 2 moves towards one end of the plug 4, the oil passing groove 22 is communicated with the oil drainage groove 14 and the oil drainage groove 13, the hydraulic oil in the piston cavity 8 passes through the oil drainage groove 13, the oil passing groove 22 and the oil drainage groove 14 drain oil, so that the oil pressure in the piston cavity 8 is reduced, meanwhile, the oil pressure in the oil passing groove 22 is also reduced, namely, the oil pressure in the mounting hole 21 is reduced, the valve core 2 moves towards one end far away from the plug 4, the oil passing groove 22 is disconnected with the oil drainage groove 14, the valve core 2 reaches balance, and the oil pressure regulation.
When the oil pressure output by the electromagnetic valve 6 to the pressure cavity 11 is maximum, the valve core 2 is far away from the plug 4 and moves to the limit, the oil pressure in the piston cavity 8 is maximum at the moment, when the input oil pressure of the oil pump 7 is increased at the moment, the oil pressure in the mounting hole 21 is correspondingly increased, the valve core 2 moves towards the plug 4, the oil passing groove 22 is disconnected with the oil inlet groove 12, the effects of pressure limiting and pressure maintaining are achieved when the valve core 2 is balanced, the oil pressure in the piston cavity 8 is not increased, and the effect of protecting a clutch piston is achieved.
Referring to fig. 3, when the solenoid valve 6 does not operate, there is no oil pressure in the pressure chamber 11, the valve element 2 moves toward the plug 4 and abuts against the plug 4, the oil passing groove 22 is communicated with the oil outlet groove 13 and the oil drain groove 14, the oil inlet groove 12 is disconnected, the hydraulic oil input by the oil pump 7 is sealed in the oil inlet groove 12, the hydraulic oil in the piston chamber 8 is drained through the oil outlet groove 13, the oil passing groove 22 and the oil drain groove 14, and the piston does not operate.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Although the terms valve body 1, pressure chamber 11, oil inlet channel 12, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.
Claims (8)
1. A pressure regulating valve of a speed changer comprises a valve body (1) and a columnar valve core (2), wherein the valve core (2) is arranged in the valve body (1) in a sliding way, it is characterized in that a pressure cavity (11) is formed between the end surface of one end of the valve core (2) and the inner wall of the valve body (1), a mounting hole (21) is arranged on the end surface of the other end of the valve core (2), an oil passing groove (22) is arranged on the outer wall of the valve core (2), an oil inlet groove (12), an oil outlet groove (13) and an oil discharge groove (14) which can be communicated with the oil passing groove (22) are arranged on the inner wall of the valve body (1), and the oil inlet groove (12), the oil outlet groove (13), the oil drain groove (14) and the pressure cavity (11) are sequentially arranged along the axial direction of the valve core (2), a spring (3) which is propped against the bottom surface of the mounting hole (21) is arranged in the mounting hole (21), and the bottom surface of the mounting hole (21) is provided with an oil passing hole (23) communicated with the oil passing groove (22).
2. The pressure regulating valve for the transmission according to claim 1, characterized in that the oil inlet groove (12), the oil outlet groove (13) and the oil drain groove (14) are all annular grooves circumferentially arranged along the inner wall of the valve body (1), and the oil passing groove (22) is an annular groove circumferentially arranged along the outer wall of the valve core (2).
3. The transmission pressure regulating valve according to claim 2, characterized in that the width of the oil passing groove (22) is larger than the distance between the oil inlet groove (12) and the oil outlet groove (13) and the distance between the oil outlet groove (13) and the oil drain groove (14), and the width of the oil passing groove (22) is smaller than the distance between the oil inlet groove (12) and the oil drain groove (14).
4. The pressure regulating valve for a transmission according to claim 2 or 3, characterized in that said oil passing hole (23) comprises an axial section (231) disposed axially of said spool (2) and a radial section (232) disposed radially of said spool (2), one end of said axial section (231) being in communication with said mounting hole (21) and the other end being in communication with one end of said radial section (232), the other end of said radial section (232) being in communication with said oil passing groove (22).
5. The transmission pressure regulating valve according to claim 4, characterized in that the bore diameter of said mounting hole (21) is larger than the bore diameter of an axial section (231), said bore diameter of said axial section (231) being larger than the bore diameter of a radial section (232).
6. The pressure regulating valve according to claim 5, characterized in that an annular step surface (25) is formed between the mounting hole (21) and the axial section (231), and the spring (3) abuts against the step surface (25).
7. The pressure regulating valve for the transmission according to claim 2 or 3, characterized in that a columnar plug (4) is fixed in the valve body (1), the plug (4) is fixed through a limit pin (5), the pressure chamber (11) is formed among the end surface of the valve core (2), the inner wall of the valve body (1) and the end surface of the plug (4), and when the end surface of the valve core (2) is abutted against the end surface of the plug (4), the oil passing groove (22) is communicated with the oil outlet groove (13) and the oil discharge groove (14).
8. The pressure regulating valve for the transmission according to claim 7, characterized in that the end face of the valve core (2) opposite to the plug (4) is also provided with a boss (24), and the outer diameter of the boss (24) is smaller than that of the valve core (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020168624.5U CN211550131U (en) | 2020-02-12 | 2020-02-12 | Pressure regulating valve of transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020168624.5U CN211550131U (en) | 2020-02-12 | 2020-02-12 | Pressure regulating valve of transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211550131U true CN211550131U (en) | 2020-09-22 |
Family
ID=72494490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020168624.5U Active CN211550131U (en) | 2020-02-12 | 2020-02-12 | Pressure regulating valve of transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211550131U (en) |
-
2020
- 2020-02-12 CN CN202020168624.5U patent/CN211550131U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100390448C (en) | Hydraulic valve | |
| US8714179B2 (en) | Solenoid valve | |
| CN102072315B (en) | Novel variable-speed operating valve | |
| US20050098211A1 (en) | Three-way bleed type proportional electromagnetic valve | |
| CN102483168B (en) | Pressure Control Valve | |
| CN105971963A (en) | Flow type balancing valve | |
| KR20150072356A (en) | Pressure regulating valve having a compensation chamber | |
| CN202132300U (en) | Electrically controlled screw-in cartridge bidirectional pressure compensation flow valve | |
| US20070284008A1 (en) | Pressure regulating valve | |
| KR20150005685A (en) | Switching valve | |
| CN105626615A (en) | Steering feedback type flow amplification valve | |
| EP0787904B1 (en) | Counter-balance valve | |
| CN211550131U (en) | Pressure regulating valve of transmission | |
| CN103075379A (en) | Electric-hydraulic proportional pressure control valve | |
| CN216382016U (en) | Adjusting mechanism for hydraulic motor automatic variable valve based on load feedback | |
| CN102213245B (en) | Threaded cartridge electrical control bidirectional pressure compensation flow valve | |
| JP2000227102A (en) | Relief valve | |
| JP3575251B2 (en) | solenoid valve | |
| CN107725517B (en) | Proportional flow solenoid valve | |
| US6223773B1 (en) | Check valve assembly | |
| CN104443019A (en) | Low-noise hydraulic steering gear | |
| CN218493922U (en) | Pressure compensating valve | |
| CN205131358U (en) | Steering gear of type of making an uproar low noise falls in multiple damping buffering | |
| CN204533020U (en) | A kind of integrated multifunction hydraulic element | |
| CN217951303U (en) | Compact four-position four-way gear shifting control valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Room 801, building 1, 999 Qingfeng South Road, Tongxiang Economic Development Zone, Tongxiang City, Jiaxing City, Zhejiang Province, 314599 Patentee after: Zhejiang Xuanfu Technology Co.,Ltd. Patentee after: ZHEJIANG GEELY HOLDING GROUP Co.,Ltd. Address before: Room 801, building 1, 999 Qingfeng South Road, Tongxiang Economic Development Zone, Tongxiang City, Jiaxing City, Zhejiang Province, 314599 Patentee before: ZHEJIANG XUANFU AUTOMATIC TRANSMISSION Co.,Ltd. Patentee before: ZHEJIANG GEELY HOLDING GROUP Co.,Ltd. |