CN86203147U - Two-way load-off loop and blocking type hydraulic moment changing apparatus - Google Patents
Two-way load-off loop and blocking type hydraulic moment changing apparatus Download PDFInfo
- Publication number
- CN86203147U CN86203147U CN 86203147 CN86203147U CN86203147U CN 86203147 U CN86203147 U CN 86203147U CN 86203147 CN86203147 CN 86203147 CN 86203147 U CN86203147 U CN 86203147U CN 86203147 U CN86203147 U CN 86203147U
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- valve
- torque converter
- unloading circuit
- dual
- fluid torque
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Abstract
The utility model relates to a two-way load-off loop and blocking type hydraulic moment changing apparatus, which is characterized in that a two-way load-off loop mode is adopted and replaces a one-way shaft coupling, realizing the blocking function. The utility model has the advantages of simple structure, easy realization. The utility model can be used for a centripetal type hydraulic moment changing apparatus and a centrifugal type hydraulic moment changing apparatus and provides a new design approach for the blocking type hydraulic moment changing apparatus.
Description
The utility model belongs to hydraudynamic drive technical field model utility dual unloading circuit formula closing type fluid torque converter traditional closing type fluid torque converter has all been carried out brand-new improvement from Let Meter thought to mechanical structure, and its novel thought can be widely used in the hydraudynamic drive technical field.
Torque converter drive is flexible transmission, have vibration damping and buffering effect, can improve the working life of power engine, working machine and transmission device, externally be loaded with simultaneously adaptivity, energy stepless change bending moment make the power engine stable operation, and it is good to have low-speed performance, speed-regulating range width reduces many advantages such as class.Therefore, fluid torque converter obtains extensive use in mechanical transmission fields.
For example after adopting torque-converters on the oil-well rig, work efficiency improves 15% during round trip.But because torque-converters efficient is lower, adopt torque-converters will reduce work efficiency 10% when creeping into operation, fuel consumption improves 1.14 times, so we wish that torque-converters is blocking when drilling condition, promptly power is directly exported, thereby avoids power loss.
The enclosed type fluid torque converter is generally integrated type centripetal turbine torque-converters at present; Promptly the mode that unidirectional coupling is installed in guide wheel realizes blocking function, but adopts unidirectional coupling that following shortcoming is arranged:
1. unidirectional coupling is installed on the radial inflow fluid torque converter certain narrow limitation is arranged.General only under the condition of fluid torque converter circulate circle ratio d/D=0.28～0.46, just unidirectional coupling can be installed in guide wheel, calculating shows that the rig torque-converters that has now adopted all can't be adapted as the closing type torque-converters with the mode that installs unidirectional coupling additional.
2. centrifugal torque-converters has many advantages, and its axial force is little, and good manufacturability is efficiently distinguished widely, and the bearing lubrication condition is good, but because its mechanical structure is different from the radial inflow torque-converters, unidirectional coupling is installed is difficulty very in guide wheel.
3. the unidirectional coupling complex structure is made up of more than 100 parts, and its boundary dimension is subjected to the structural limitations can not be too big.Its manufacturability is poor, cost height, reliability are low.
4. the analysis result to U.S. Allison driver shows, owing to be subjected to the restriction of unidirectional coupling bearing capacity, makes the coupling of torque-converters and power engine unreasonable.
Because the deficiency that unidirectional coupling exists, and the use that has limited the closing type fluid torque converter is in order to give full play to the advantage of closing type fluid torque converter, and overcoming the deficiency that unidirectional coupling exists, the method that the utility model is designed a kind of dual unloading circuit realizes its blocking function.This dual unloading circuit has not only replaced unidirectional coupling and has realized blocking function, and the structural design of this dual unloading circuit is simple, be easy to realize, promptly can be used for the radial inflow fluid torque converter, also can be used for centrifugal fluid torque converter, for the closing type fluid torque converter has been opened up a new design approach.Design philosophy of the present utility model is that the closing type fluid torque converter is when the locking operating mode, working medium in the active chamber must not transmitted power, and the main effect of traditional unidirectional coupling is to be reduced in the hydraulic losses that fixedly causes because of guide wheel under the locking operating mode, so, as long as under the locking operating mode, liquid is not circulated at active chamber, and hydraulic losses also just can be avoided.Major character of the present utility model is the mode that has adopted two step off-loads, has stoped flowing of work intraluminal fluid oil, and has avoided the loss of power.
First step off-load is the fuel feeding that at first interrupts to torque-converters, and the second step off-load is to have adopted a kind of special draining valve, with the fluid emptying in the active chamber.By the mode of this dual unloading circuit, both simple, realized the blocking function of fluid torque converter again reliably.
Accompanying drawing 2 is schematic representation of radial inflow closing type torque-converters dual unloading circuit, and the mode of off-load adopts the Pitot induction pressure to control the selector valve action automatically.
Accompanying drawing 3 is schematic representation of the dual unloading circuit of centrifugal closing type torque-converters.
Accompanying drawing 4 is structural representations of draining valve.
Do following detailed explanation in conjunction with the accompanying drawings:
Oil feed pump (11) is driven from fuel tank (14) oil suction by input shaft (8), and pressure oil is oil-filled to torque-converters during in the torque-converters operating mode through selector valve (10) or hydraulic control two position and four-way reversing valves (17).The moment of momentum of working solution in pump impeller (1), turbine (2), guide wheel (3) cyclic process changes to be exported power through output shaft (9).When the locking operating mode, handle the fuel feeding of selector valve (10) or (17) interruption in the torque-converters active chamber, pressure oil acts on the lockup clutch piston (7), and promotes clutch friction plate (6) and combine with lockup clutch back seat plate (5), and power is directly exported.In addition, the locking oil pressure acts on spool (33) top of draining valve shown in Figure 4 simultaneously.Valve block (31) in the draining valve is separated with valve body (32), and the fluid in the active chamber is discharged.The interior fluid of active chamber this moment is discharged through throttle orifice (20).Under the locking operating mode, the bearing lubrication of torque-converters is to realize by the lubricated shunting (19) on the locking oil circuit.Because have only a small amount of leakage of bearing lubrication and lockup clutch in the oil-way system under the locking operating mode, unnecessary oil flows back to fuel tank (14) through throttle valve (13).
When needs adopt hydraulic control to change operating mode automatically, open the oil collecting ring (15) of stop valve (18) and output shaft (9) rotation synchronously and be fixed on the pitot tube (16) that guide wheel puts, convert output speed to hydraulic pressure signal and control pilot operated directional control valve (17), realize the conversion of locking operating mode and torque-converters operating mode.
Lockup clutch also can be designed to wet type, there is unloading hole at cylindrical place at lockup clutch piston (7), and there is equalizing orifice the lower end of friction plate (6), also can install the shape spring (21) of talking endlessly additional at the friction plate right-hand member, so that lockup clutch separates reliable, do not trackslip.
Claims (4)
1, a kind of dual unloading circuit formula closing type fluid torque converter is characterized in that dual unloading circuit is made up of selector valve (hydraulic pressure of available manual operation, Pitot induction installation automatically control and pneumatic operation), draining valve, wet type lockup clutch, fuel feeding and Load Relief System.
2, dual unloading circuit formula closing type fluid torque converter according to claim 1, the guide wheel that it is characterized in that torque-converters puts and is provided with pitot tube, an oil collecting ring is arranged on the output shaft, a stop valve (18) is arranged between selector valve (17) and the pitot tube, thereby formed the hydraulic control automatic reverse system that operating mode changes that realizes.
3, dual unloading circuit formula closing type fluid torque converter according to claim 1 is characterized in that the draining valve on the dual unloading circuit is contained in the connection place of pump impeller cover and pump impeller, and draining valve mainly is made up of valve block, spool, valve body etc.
4, dual unloading circuit formula closing type fluid torque converter according to claim 1, it is characterized in that the wet type lockup clutch is made up of piston, fricting clutch plate, back seat plate etc., have equalizing orifice in the fricting clutch plate lower end, and install the shape spring of talking endlessly additional, have a unloading hole at the outside piston place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86203147 CN86203147U (en) | 1986-05-15 | 1986-05-15 | Two-way load-off loop and blocking type hydraulic moment changing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86203147 CN86203147U (en) | 1986-05-15 | 1986-05-15 | Two-way load-off loop and blocking type hydraulic moment changing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN86203147U true CN86203147U (en) | 1987-02-11 |
Family
ID=4806513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 86203147 Withdrawn CN86203147U (en) | 1986-05-15 | 1986-05-15 | Two-way load-off loop and blocking type hydraulic moment changing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN86203147U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1077256C (en) * | 1994-02-11 | 2002-01-02 | 卢克驱动系统有限公司 | Hydrodynamic rotating moment convertor |
| CN100375855C (en) * | 2003-11-12 | 2008-03-19 | 日产自动车株式会社 | Power transmission device and lockup control method for torque converter |
| CN101968110A (en) * | 2010-09-28 | 2011-02-09 | 贵州凯星液力传动机械有限公司 | Hydrodynamic transmission buffering device for railway vehicle |
| CN101598208B (en) * | 2008-05-09 | 2013-03-27 | 通用汽车环球科技运作公司 | Dual clutch torque converter control system |
| CN106481371A (en) * | 2015-08-26 | 2017-03-08 | 熵零股份有限公司 | Hydraulic mechanism and its device |
| CN106678089A (en) * | 2017-02-05 | 2017-05-17 | 罗显平 | Hydraulic driver and vehicle thereof |
| CN113883250A (en) * | 2021-09-14 | 2022-01-04 | 曹步尧 | Hydraulic coupling capable of automatically multiplexing |
-
1986
- 1986-05-15 CN CN 86203147 patent/CN86203147U/en not_active Withdrawn
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1077256C (en) * | 1994-02-11 | 2002-01-02 | 卢克驱动系统有限公司 | Hydrodynamic rotating moment convertor |
| CN100375855C (en) * | 2003-11-12 | 2008-03-19 | 日产自动车株式会社 | Power transmission device and lockup control method for torque converter |
| CN101598208B (en) * | 2008-05-09 | 2013-03-27 | 通用汽车环球科技运作公司 | Dual clutch torque converter control system |
| CN101968110A (en) * | 2010-09-28 | 2011-02-09 | 贵州凯星液力传动机械有限公司 | Hydrodynamic transmission buffering device for railway vehicle |
| CN106481371A (en) * | 2015-08-26 | 2017-03-08 | 熵零股份有限公司 | Hydraulic mechanism and its device |
| CN106678089A (en) * | 2017-02-05 | 2017-05-17 | 罗显平 | Hydraulic driver and vehicle thereof |
| CN106678089B (en) * | 2017-02-05 | 2018-04-13 | 罗显平 | A kind of fluid drive and its vehicle |
| CN113883250A (en) * | 2021-09-14 | 2022-01-04 | 曹步尧 | Hydraulic coupling capable of automatically multiplexing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| RN01 | Renewal of patent term | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |