CN204387297U - The quick oil-filled hydraulic pressure shifting system of two oil circuits that a kind of pressure relay controls - Google Patents
The quick oil-filled hydraulic pressure shifting system of two oil circuits that a kind of pressure relay controls Download PDFInfo
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- CN204387297U CN204387297U CN201520015230.5U CN201520015230U CN204387297U CN 204387297 U CN204387297 U CN 204387297U CN 201520015230 U CN201520015230 U CN 201520015230U CN 204387297 U CN204387297 U CN 204387297U
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- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
The quick oil-filled hydraulic pressure shifting system of two oil circuits that pressure relay controls, comprises the buffering boosting oil circuit be made up of existing hydraulic gear-shifting pressure controlled valve and the quick oil-filled oil circuit be made up of two-position two-way solenoid valve, pressure relay.The filler opening of buffering boosting oil circuit is connected with oil pump, oil outlet is connected with shift clutch oil hydraulic cylinder, the filler opening of quick oil-filled oil circuit is connected with working connection, and oil outlet is connected with shift clutch oil hydraulic cylinder, and pressure relay is arranged on adjusting pressuring valve core oil outlet place in buffering boosting oil circuit.The utility model, oil-filled to gearshift clutch hydraulic cylinder together with buffering boosting oil circuit by quick oil-filled oil circuit to the clutch hydraulic cylinder topping up stage, make hydraulic oil be full of shift clutch oil hydraulic cylinder at faster speed, effectively shortens the gearshift time.
Description
Technical field
The present invention relates to a kind of hydraulic gear-shifting system, particularly a kind of quick oil-filled hydraulic pressure shifting system of two oil circuits that effectively can shorten the pressure relay control of large-scale engineering machinery gearshift time.
Background technique
Along with the correlation technique of engineering machinery is in the development of China and maturation, the requirement of people to shift quality is more and more higher, and namely shift process is wanted steadily and completed rapidly, to reduce wearing and tearing and the power interruption of friction element as far as possible.Utilize dynamic power shift gear box to be the method for at present general raising shift quality, it is mainly by the oil pressure change in hydraulic gear-shifting Stress control valve regulation shift process and then control shift clutch and ensure.
Generally, shift process comprises to gap elimination between clutch hydraulic cylinder topping up, friction blade, clutch pressure uphill process.Wherein wish to eliminate needed time to gap between clutch topping up and friction plate short, clutch pressure uphill process is wanted steadily.
Although current hydraulic gear-shifting pressure controlled valve on the market can realize buffering boosting, but because the aperture of the restriction of hydraulic gear-shifting pressure controlled valve inside is less, and the valve port opening of adjusting pressuring valve core is constantly reducing in clutch hydraulic cylinder filling process, cause fluid can not be full of shift clutch oil hydraulic cylinder fast, finally cause shift clutch Oil feeding process to slow down, extend the gearshift time.
Summary of the invention
In order to solve the problem that the Oil feeding process that exists in existing hydraulic gear-shifting pressure controlled valve slows down, the present invention aims to provide a kind of quick oil-filled hydraulic pressure shifting system of two oil circuits that effectively can shorten the novel pressure Control of gearshift time.
The technical solution adopted for the present invention to solve the technical problems is: the quick oil-filled hydraulic pressure shifting system of two oil circuits that a kind of pressure relay controls, and mainly comprises quick oil-filled oil circuit and buffering boosting oil circuit.
Described buffering boosting oil circuit is made up of existing hydraulic gear-shifting pressure controlled valve.
Described quick oil-filled oil circuit is made up of two-position two-way solenoid valve, pressure relay.
The filler opening of described buffering boosting oil circuit is communicated with system working connection, oil outlet is communicated with shift clutch oil hydraulic cylinder, described two-position two-way solenoid valve filler opening is communicated with working connection, oil outlet is communicated with shift clutch oil hydraulic cylinder, and described pressure relay is arranged on adjusting pressuring valve core oil outlet place in buffering boosting oil circuit.
The nominal flow rate of described two-position two-way solenoid valve is greater than the peak rate of flow cushioning boosting oil circuit and allow to pass through.
The coil of described two-position two-way solenoid valve forms with described pressure relay and ECU (Electrical Control Unit) voltage output end closed-loop path of connecting, the common of pressure relay described in one termination of ECU (Electrical Control Unit) voltage output end, the break contact of described pressure relay connects one end of described two-position two-way solenoid valve coil, the other end of another termination ECU (Electrical Control Unit) voltage output end of described two-position two-way solenoid valve coil.
When described two-position two-way solenoid valve coil obtains electric, oil outlet that its filler opening is communicated with shift clutch oil hydraulic cylinder is connected and is carried out oil-filled fast, and during dead electricity, to be blocked stopping oil-filled fast for its filler opening and oil outlet.
Described pressure relay common when hydraulic fluid pressure is less than or equal to its pressure set points is connected and break contact, when hydraulic fluid pressure is greater than its pressure set points, common and break contact disconnect, and its pressure set points is that after hydraulic oil is full of shift clutch oil hydraulic cylinder, between shift clutch friction plate, the force value of adjusting pressuring valve core oil outlet place hydraulic oil when starting transmitting torque is eliminated in gap completely.
ECU (Electrical Control Unit) voltage output end output voltage during gearshift, because buffering boosting oil circuit is also very little at quick oil-filled its adjusting pressuring valve core outlet port hydraulic fluid pressure of event, therefore pressure relay is operated in its common of initial position and break contact is connected, the closed-loop path be made up of ECU (Electrical Control Unit) voltage output end, described pressure relay, described two-position two-way solenoid valve coil is connected, described two-position two-way solenoid valve obtains electric, and its filler opening is connected oil-filled fast together with buffering boosting oil circuit with oil outlet.
When hydraulic oil to be full of after shift clutch oil hydraulic cylinder gap between shift clutch friction plate eliminate completely start transmitting torque time, the hydraulic fluid pressure of adjusting pressuring valve core oil outlet rises rapidly that is described pressure relay pressure rises rapidly is greater than its pressure set points, its break contact and common disconnect, described two-position two-way solenoid valve dead electricity, its filler opening and oil outlet are blocked, quick oil-filled oil circuit is cut off, hydraulic oil enters shift clutch oil hydraulic cylinder by buffering boosting oil circuit and carries out buffering boosting by cushioning boosting oil circuit, reduces shift shock.
The invention has the beneficial effects as follows, existing hydraulic gear-shifting pressure controlled valve increases by one directly from system working connection through the described two-position two-way solenoid valve that controlled by described pressure relay to the oil-filled quick oil-filled oil circuit of shift clutch oil hydraulic cylinder, define quick oil-filled oil circuit, oil-filled to gearshift clutch hydraulic cylinder together with buffering boosting oil circuit by quick oil-filled oil circuit at the gearshift initial stage, make hydraulic oil be full of shift clutch oil hydraulic cylinder at faster speed, effectively shorten the gearshift time.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the hydraulic schematic diagram of current hydraulic gear-shifting pressure controlled valve.
Fig. 2 is hydraulic schematic diagram of the present invention.
Fig. 3 is electric hookup of the present invention.
In figure, 1. oil pump comes oily passage, 2. adjusting pressuring valve core, 3. accumulator plunger, 4. restriction, 5. pressure setting valve, 6. shift clutch oil hydraulic cylinder, 7. two-position two-way solenoid valve, 8. pressure relay, 9. ECU (Electrical Control Unit).
Embodiment
The quick oil-filled hydraulic pressure shifting system of two oil circuits that pressure relay controls, mainly comprises quick oil-filled oil circuit and buffering boosting oil circuit.
Described buffering boosting oil circuit can be made up of existing hydraulic gear-shifting pressure controlled valve.
Described quick oil-filled oil circuit is made up of two-position two-way solenoid valve (7), pressure relay (8).
The filler opening of described buffering boosting oil circuit is communicated with working connection, oil outlet is connected with shift clutch oil hydraulic cylinder (6), described two-position two-way solenoid valve (7) filler opening is connected with working connection, oil outlet is connected with shift clutch oil hydraulic cylinder (6), and described pressure relay (8) is arranged on adjusting pressuring valve core (2) oil outlet place in buffering boosting oil circuit.
The nominal flow rate of described two-position two-way solenoid valve (7) is greater than the peak rate of flow cushioning boosting oil circuit and allow to pass through.
The coil of described two-position two-way solenoid valve (7) forms with described pressure relay (8) and ECU (Electrical Control Unit) (9) voltage output end closed-loop path of connecting, the common of pressure relay (8) described in one termination of ECU (Electrical Control Unit) (9) voltage output end, the break contact of described pressure relay (8) connects one end of described two-position two-way solenoid valve (7) coil, the other end of another termination ECU (Electrical Control Unit) (9) voltage output end of described two-position two-way solenoid valve (7) coil.
When described two-position two-way solenoid valve (7) coil obtains electric, oil outlet that its filler opening is communicated with shift clutch oil hydraulic cylinder (6) is connected and is carried out oil-filled fast, and during dead electricity, to be blocked stopping oil-filled fast for its filler opening and oil outlet.
Described pressure relay (8) break contact and common when hydraulic fluid pressure is less than or equal to its pressure set points are connected, when hydraulic fluid pressure is greater than its pressure set points, break contact and common disconnect, its pressure set points be hydraulic oil be full of shift clutch oil hydraulic cylinder (6) afterwards between shift clutch friction plate gap eliminate the force value of adjusting pressuring valve core (2) oil outlet place hydraulic oil when starting transmitting torque completely.
ECU (Electrical Control Unit) (9) voltage output end output voltage during gearshift, because buffering boosting oil circuit is also very little at quick oil-filled event its pressure regulator valve (2) core outlet port hydraulic fluid pressure, therefore pressure relay (8) is operated in its common of initial position and break contact is connected, the closed-loop path be made up of ECU (Electrical Control Unit) (9) voltage output end, described pressure relay (8), described two-position two-way solenoid valve (7) coil is connected, described two-position two-way solenoid valve (7) obtains electric, and its filler opening is connected oil-filled fast together with buffering boosting oil circuit with oil outlet.
When hydraulic oil be full of shift clutch oil hydraulic cylinder (6) afterwards between shift clutch friction plate gap eliminate completely start transmitting torque time, the hydraulic fluid pressure of adjusting pressuring valve core (2) oil outlet rises rapidly that is described pressure relay (8) pressure rises rapidly is greater than its pressure set points, its break contact and common disconnect, described two-position two-way solenoid valve (7) dead electricity, its filler opening and oil outlet are blocked, quick oil-filled oil circuit is cut off, hydraulic oil enters shift clutch oil hydraulic cylinder (6) by buffering boosting oil circuit and carries out buffering boosting by buffering boosting oil circuit, reduce shift shock.
Claims (3)
1. the quick oil-filled hydraulic pressure shifting system of two oil circuits of pressure relay control, mainly comprises quick oil-filled oil circuit and buffering boosting oil circuit, it is characterized in that: described quick oil-filled oil circuit is made up of two-position two-way solenoid valve and pressure relay.
2. the quick oil-filled hydraulic pressure shifting system of two oil circuits of a kind of pressure relay control according to claim 1, it is characterized in that: described buffering boosting oil circuit filler opening is communicated with working connection, oil outlet is communicated with shift clutch oil hydraulic cylinder, described two-position two-way solenoid valve filler opening is communicated with working connection, oil outlet is communicated with shift clutch oil hydraulic cylinder, and described pressure relay is arranged on adjusting pressuring valve core oil outlet place in buffering boosting oil circuit.
3. the quick oil-filled hydraulic pressure shifting system of two oil circuits of a kind of pressure relay control according to claim 1, it is characterized in that: described two-position two-way solenoid valve is controlled by described pressure relay, its pressure setting is the force value that between shift clutch friction plate, adjusting pressuring valve core oil outlet place hydraulic oil when starting transmitting torque is eliminated in gap completely.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520015230.5U CN204387297U (en) | 2015-01-12 | 2015-01-12 | The quick oil-filled hydraulic pressure shifting system of two oil circuits that a kind of pressure relay controls |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520015230.5U CN204387297U (en) | 2015-01-12 | 2015-01-12 | The quick oil-filled hydraulic pressure shifting system of two oil circuits that a kind of pressure relay controls |
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| Publication Number | Publication Date |
|---|---|
| CN204387297U true CN204387297U (en) | 2015-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520015230.5U Expired - Fee Related CN204387297U (en) | 2015-01-12 | 2015-01-12 | The quick oil-filled hydraulic pressure shifting system of two oil circuits that a kind of pressure relay controls |
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| CN (1) | CN204387297U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104696508A (en) * | 2015-01-12 | 2015-06-10 | 四川大学 | Hydraulic gear shifting system controlled by pressure relay, provided with double oil ways and capable of realizing quick oil filling |
-
2015
- 2015-01-12 CN CN201520015230.5U patent/CN204387297U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104696508A (en) * | 2015-01-12 | 2015-06-10 | 四川大学 | Hydraulic gear shifting system controlled by pressure relay, provided with double oil ways and capable of realizing quick oil filling |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150610 Termination date: 20160112 |