CN217874115U - Anti-leakage low-loss hydraulic control mechanism of gearbox - Google Patents
Anti-leakage low-loss hydraulic control mechanism of gearbox Download PDFInfo
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- CN217874115U CN217874115U CN202222039896.7U CN202222039896U CN217874115U CN 217874115 U CN217874115 U CN 217874115U CN 202222039896 U CN202222039896 U CN 202222039896U CN 217874115 U CN217874115 U CN 217874115U
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Abstract
The utility model discloses a low-loss hydraulic control mechanism is prevented leaking by gearbox, including oil bath, separation and reunion oil circuit, lubricated oil circuit. The clutch oil path comprises an engine driving pump, a main pressure regulating valve, a first main control electromagnetic valve and a clutch control valve, and is connected with the clutch control valve through the oil path, and the clutch control valve is connected with a clutch in a control mode and supplies oil for clutch. The lubricating oil way comprises a differential driving pump, a bypass valve, a second main control electromagnetic valve, a second pressure relief valve and a lubricating switch valve, the differential driving pump is connected with the oil outlet one-way valve and then connected with the lubricating branch pipe, the second pressure relief valve is respectively connected with the second main control electromagnetic valve and the oil outlet one-way valve, and the second main control electromagnetic valve is also connected with the oil outlet one-way valve; a main oil way one-way valve and a bypass valve are arranged between the differential mechanism driving pump and the lubricating branch pipe. The utility model discloses make the control of gearbox clutch more accurate, improve undulant, reduce the oil supply loss, lubricated effect is better.
Description
Technical Field
The utility model belongs to the technical field of automobile power system hydraulic control, concretely relates to low-loss hydraulic control mechanism is prevented leaking by gearbox.
Background
The conventional anti-leakage low-loss hydraulic control mechanism of the gearbox pumps hydraulic oil in a hydraulic oil tank out through negative pressure of a mechanical pump, and the hydraulic oil drives a clutch to be closed and opened after being controlled by an electromagnetic valve through an electromagnetic valve. As shown in the attached drawing 1 of the specification, a mechanical pump is driven by an engine through a transmission shaft, the flow rate of the mechanical pump is different when the vehicle is at a normal vehicle speed and at a high vehicle speed, in order to cope with the defect of different flow rates, an additional electromagnetic valve is generally adopted in the industry at present to control the system pressure, or the redundant pressure is controlled through a pressure limiting valve, and most of hydraulic oil returns to an oil suction port of the mechanical pump through the pressure limiting valve. Under the working condition, the engine needs to drive the mechanical pump, and the pressure limiting valve continuously returns the hydraulic oil, so that the normal work of the electromagnetic valve and the clutch is ensured, but the energy consumption of the power system is increased. Meanwhile, the oil supply time of the clutch is influenced by the engine, and the lubricating effect is not ideal.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a low-loss hydraulic control mechanism is prevented leaking by gearbox, provides lubricated, the required fluid of clutch control respectively through differential mechanism driving pump and engine-driven pump, rationally sets up pipeline and energy storage ware etc. simultaneously, compromises energy consumption and execution efficiency to the above-mentioned not enough that prior art exists.
In order to achieve the purpose, the utility model provides a leakproof low-loss hydraulic control mechanism of a gearbox, which comprises an oil pool, a clutch oil path and a lubricating oil path,
the clutch oil path comprises an engine driving pump, a main pressure regulating valve, a first main control electromagnetic valve and a clutch control valve, the engine driving pump is connected with an engine driving shaft through a gear and a shaft, the engine driving pump is connected into an oil pool and is connected with the clutch control valve through an oil path, and the clutch control valve is connected with a clutch in a controlled manner and supplies oil for clutch; the engine driving pump is connected with two interfaces of the main pressure regulating valve through a pipeline, and the first pressure relief valve is installed on the pipeline between the engine driving pump and the main pressure regulating valve; the first main control electromagnetic valve adopts a VBS proportional valve, two interfaces of the first main control electromagnetic valve are respectively connected with the engine driving pump and the main pressure regulating valve, the main pressure regulating valve is connected, and an energy accumulator is arranged on a pipeline between the first main control electromagnetic valve and the main pressure regulating valve;
the lubricating oil way comprises a differential driving pump, a bypass valve, a second main control electromagnetic valve, a second pressure release valve and a lubricating switch valve, wherein the differential driving pump is connected with a shaft where the differential is located through a gear and a shaft, the differential driving pump is connected into the oil pool, the differential driving pump is connected with the oil outlet one-way valve and then connected with the lubricating branch pipe, the second pressure release valve is respectively connected with the second main control electromagnetic valve and the oil outlet one-way valve, and the second main control electromagnetic valve is also connected with the oil outlet one-way valve; a main oil way one-way valve and a bypass valve are arranged between the differential mechanism driving pump and the lubricating branch pipe; the lubricating branch pipes comprise a first lubricating branch pipe and a second lubricating branch pipe, the first lubricating branch pipe is connected to the generator, and the second lubricating branch pipe is connected to the driving motor and other parts to be lubricated including the clutch and the gear; three ports of the lubricating switch valve are respectively connected with the clutch oil way, the lubricating oil way and the first lubricating branch pipe;
the clutch oil way is in one-way connection with the lubricating oil way, one of the interfaces of the main pressure regulating valve is connected with the main oil way one-way valve, and the oil delivery direction is from the main pressure regulating valve to the main oil way one-way valve.
Further, in order to avoid that the oil can not be supplied to the clutch when the power is cut off, the first main control electromagnetic valve is in a normally open type.
Furthermore, an oil inlet one-way valve is installed on a pipeline between the differential mechanism driving pump and the oil outlet one-way valve, and the oil inlet one-way valve is connected with the oil pool to reintroduce oil into the oil pool.
Furthermore, an oil cooler is arranged on a pipeline between the oil outlet one-way valve and the lubricating branch pipe.
Furthermore, orifices are arranged on the energy accumulator, the main pressure regulating valve, the lubricating switch valve, the second pressure relief valve and the first lubricating branch pipe.
The utility model has the advantages that:
the anti-leakage low-loss hydraulic control mechanism of the gearbox of the utility model distributes the clutch and the lubricating oil respectively through the engine and the differential mechanism, so that the adjustment is more accurate, the control of the clutch of the gearbox is more accurate, the fluctuation is improved, and the oil supply loss is reduced; the parts needing lubrication, such as clutches, gears and the like, have better lubrication effect.
Drawings
FIG. 1 is a schematic diagram of a hydraulic control system employing pressure limiting valve return as described in the background of the invention;
fig. 2 is a schematic diagram of a transmission leakage-proof low-loss hydraulic control mechanism according to the present invention;
fig. 3 is a schematic diagram of the engine-driven oil circuit according to the present invention;
fig. 4 is a schematic diagram of the engine-driving oil circuit according to the present invention.
In the figure: 1. an oil sump; 2. an engine-driven pump; 3. a differential drive pump; 4. a first pressure relief valve; 5. an accumulator; 6. a first master control solenoid valve; 7. a main pressure regulating valve; 8. a clutch control valve; 9. a clutch; 10. A lubrication on-off valve; 11. a first lubrication branch pipe; 12. a second lubrication branch pipe; 13. an oil cooler; 14. a bypass valve; 15. a main oil way check valve; 16. a second pressure relief valve; 17. a second master control solenoid valve; 18. an oil inlet check valve; 19. an oil outlet one-way valve.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
As shown in fig. 2, a leakproof low-loss hydraulic control mechanism for a gearbox comprises an oil pool 1, a clutch oil way and a lubricating oil way.
As shown in fig. 3, the clutch oil path includes an engine driving pump 2, a main pressure regulating valve 7, a first main control electromagnetic valve 6, and a clutch control valve 8, the engine driving pump 2 is connected with an engine driving shaft through a gear and a shaft, the engine driving pump 2 is connected to the oil sump 1 and is connected with the clutch control valve 8 through an oil path, and the clutch control valve 8 is connected with a clutch 9 in a control manner and supplies oil for clutch. The engine driving pump 2 is connected with two interfaces of the main pressure regulating valve 7 through a pipeline, and the first pressure relief valve 4 is arranged on the pipeline between the engine driving pump 2 and the main pressure regulating valve 7; the first main control electromagnetic valve 6 adopts a VBS proportional valve, two interfaces of the first main control electromagnetic valve 6 are respectively connected with the engine driving pump 2 and the main pressure regulating valve 7, the main pressure regulating valve 7 is connected, and the energy accumulator 5 is arranged on a pipeline between the first main control electromagnetic valve 6. In order to avoid that the clutch 9 can not be supplied with oil when the power is cut off, the first main control electromagnetic valve 6 is in a normally open type.
As shown in fig. 4, the lubricating oil path includes a differential drive pump 3, a bypass valve 14, a second main control electromagnetic valve 17, a second pressure release valve 16 and a lubricating switch valve 10, the differential drive pump 3 is connected with a shaft of the differential through a gear and a shaft, the differential drive pump 3 is connected to the oil sump 1, the differential drive pump 3 is connected with the oil outlet one-way valve 19 and then connected with a lubricating branch pipe, the second pressure release valve 16 is respectively connected with the second main control electromagnetic valve 17 and the oil outlet one-way valve 19, and the second main control electromagnetic valve 17 is also connected with the oil outlet one-way valve 19; a main oil way one-way valve 15 and a bypass valve 14 are arranged between the differential drive pump 3 and the lubricating branch pipe; the lubricating branch pipes comprise a first lubricating branch pipe 11 and a second lubricating branch pipe 12, the first lubricating branch pipe 11 is connected to the generator, and the second lubricating branch pipe 12 is connected to the driving motor and other parts to be lubricated including the clutch 9 and the gear. Three interfaces of the lubricating switch valve 10 are respectively connected with a clutch oil path, a lubricating oil path and a first lubricating branch pipe 11. An oil inlet one-way valve 18 is installed on a pipeline between the differential drive pump 3 and the oil outlet one-way valve 19, and the oil inlet one-way valve 18 is connected with the oil pool 1 to reintroduce oil into the oil pool 1.
As shown in fig. 2, the clutch oil path is connected with the lubricating oil path in a one-way manner, one of the ports of the main pressure regulating valve 7 is connected with the main oil path check valve 15, and the oil delivery direction is from the main pressure regulating valve 7 to the main oil path check valve 15. An oil cooler 13 is arranged on a pipeline between the oil outlet one-way valve 19 and the lubricating branch pipe. Orifices are mounted on the accumulator 5, the main pressure regulating valve 7, the lubrication on-off valve 10, the second pressure relief valve 16, and the first lubrication branch pipe 11.
The utility model discloses a theory of operation:
the utility model discloses a carry out the oil circuit of shafting connection respectively with differential mechanism, engine, compromise clutch 9 and adjust and lubricate with the generating motor, the drive motor is lubricated and other parts of gearbox are like the lubrication of gear etc.. After the vehicle moves, the differential can drive the lubricating oil path, and after the engine is started, the clutch 9 can be started, and meanwhile, redundant flow is introduced into the lubricating oil path through the one-way valve.
The main oil circuit control electromagnetic valve adopts a VBS valve to adjust a proportional valve, so that the fluctuation is improved, and the oil supply loss is reduced; main oil circuit control solenoid valve generally adopts large-traffic directly to send in the trade at present, the utility model discloses well adoption miniflow's pilot valve, control is more accurate, and cooperation energy storage ware 5 increases the orifice, can more accurate control main pressure regulating valve 7's case, and energy storage ware 5 absorbs main oil circuit control solenoid valve's large-traffic fluctuation, makes main pressure regulating valve 7's oil feed flow more tie reality.
The foregoing illustrates and describes the general principles, features and advantages of the present invention. It should be understood by those skilled in the art that the foregoing embodiments are merely illustrative of the technical concepts and features of the present invention, and the purpose of the present invention is to provide a person skilled in the art with the ability to understand the contents of the present invention and implement the same, and not to limit the scope of the present invention.
Claims (5)
1. The utility model provides a low-loss hydraulic control mechanism is prevented leaking by gearbox, includes oil bath (1), separation and reunion oil circuit, lubricated oil circuit, its characterized in that:
the clutch oil way comprises an engine driving pump (2), a main pressure regulating valve (7), a first main control electromagnetic valve (6) and a clutch control valve (8), wherein the engine driving pump (2) is connected with an engine driving shaft through a gear and a shaft, the engine driving pump (2) is connected into an oil pool (1) and is connected with the clutch control valve (8) through an oil way, and the clutch control valve (8) is in control connection with a clutch (9) and supplies oil for clutch; the engine driving pump (2) is connected with two interfaces of the main pressure regulating valve (7) through a pipeline, and the first pressure relief valve (4) is installed on the pipeline between the engine driving pump (2) and the main pressure regulating valve (7); the first main control electromagnetic valve (6) adopts a VBS proportional valve, two interfaces of the first main control electromagnetic valve (6) are respectively connected with the engine driving pump (2) and the main pressure regulating valve (7), the main pressure regulating valve (7) is connected, and an energy accumulator (5) is arranged on a pipeline between the first main control electromagnetic valve (6);
the lubricating oil way comprises a differential driving pump (3), a bypass valve (14), a second main control electromagnetic valve (17), a second pressure relief valve (16) and a lubricating switch valve (10), wherein the differential driving pump (3) is connected with a shaft where a differential is located through a gear and a shaft, the differential driving pump (3) is connected into the oil pool (1), the differential driving pump (3) is connected with the lubricating branch pipe after being connected with the oil outlet one-way valve (19), the second pressure relief valve (16) is respectively connected with the second main control electromagnetic valve (17) and the oil outlet one-way valve (19), and the second main control electromagnetic valve (17) is also connected with the oil outlet one-way valve (19); a main oil way one-way valve (15) and a bypass valve (14) are arranged between the differential drive pump (3) and the lubricating branch pipe; the lubricating branch pipes comprise a first lubricating branch pipe (11) and a second lubricating branch pipe (12), the first lubricating branch pipe (11) is connected to a generator, and the second lubricating branch pipe (12) is connected to a driving motor and other parts to be lubricated, including a clutch (9) and a gear; three interfaces of the lubricating switch valve (10) are respectively connected with a clutch oil way, a lubricating oil way and a first lubricating branch pipe (11);
the clutch oil way is in one-way connection with the lubricating oil way, one interface of the main pressure regulating valve (7) is connected with the main oil way one-way valve (15), and the oil delivery direction is from the main pressure regulating valve (7) to the main oil way one-way valve (15).
2. A transmission leak-proof low-loss hydraulic control mechanism as defined in claim 1, wherein: the first master control electromagnetic valve (6) is normally open.
3. A transmission case leakage-prevention low-loss hydraulic control mechanism according to claim 1, characterized in that: an oil inlet one-way valve (18) is installed on a pipeline between the differential drive pump (3) and the oil outlet one-way valve (19), the oil inlet one-way valve (18) is connected with the oil pool (1), and oil is reintroduced into the oil pool (1).
4. A transmission case leakage-prevention low-loss hydraulic control mechanism according to claim 1, characterized in that: and an oil cooler (13) is arranged on a pipeline between the oil outlet one-way valve (19) and the lubricating branch pipe.
5. A transmission leak-proof low-loss hydraulic control mechanism as defined in claim 1, wherein: and orifices are arranged on the energy accumulator (5), the main pressure regulating valve (7), the lubricating switch valve (10), the second pressure relief valve (16) and the first lubricating branch pipe (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222039896.7U CN217874115U (en) | 2022-08-04 | 2022-08-04 | Anti-leakage low-loss hydraulic control mechanism of gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222039896.7U CN217874115U (en) | 2022-08-04 | 2022-08-04 | Anti-leakage low-loss hydraulic control mechanism of gearbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217874115U true CN217874115U (en) | 2022-11-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222039896.7U Active CN217874115U (en) | 2022-08-04 | 2022-08-04 | Anti-leakage low-loss hydraulic control mechanism of gearbox |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217874115U (en) |
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2022
- 2022-08-04 CN CN202222039896.7U patent/CN217874115U/en active Active
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