CN101239616A - Hydraulic speed buffer structure capable of eliminating pumping loss - Google Patents
Hydraulic speed buffer structure capable of eliminating pumping loss Download PDFInfo
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- CN101239616A CN101239616A CNA2008100204982A CN200810020498A CN101239616A CN 101239616 A CN101239616 A CN 101239616A CN A2008100204982 A CNA2008100204982 A CN A2008100204982A CN 200810020498 A CN200810020498 A CN 200810020498A CN 101239616 A CN101239616 A CN 101239616A
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- spiral gear
- helical wheel
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Abstract
The present invention provides a hydraulic retarder structure for eliminating pumping loss, the engine body of the hydraulic retarder is fixed on the front of a transmission, rotor, stator and clutch are distributed on the outer ring of an input shaft of the hydraulic retarder in the engine body, the stator is fixed on the input shaft, spiral gear fixed on the main driving axle of the transmission is meshed with spiral gear fixed on the input shaft, the spiral gear is fixed on the shaft housing and hollow covered on the input shaft, a checking ring is fixed on the input shaft at the top of the spiral gear; a driven friction plate of the clutch and the spiral gear on the top are integrated, a main friction plate is fixed on the input shaft, the clutch of the invention is send to the vehicle main transmission shaft from the driven friction plate after being enhancing torsion, the spiral gear drives idle of the clutch and the driven friction plate, the hydraulic retarder rotor is in the static state, does not form air flow, fully eliminates pumping loss.
Description
Technical field
The present invention relates to the motor vehicle braking system retarder, particularly a kind of hydrodynamic retarder.
Background technology
Hydrodynamic retarder is the complemental brake system of motor vehicle braking system, it is a kind of rotary damping device, utilize its rotor banding hydrodynamic body rotation and impact stator, this moment, stator also can produce a reaction force acts on rotor by liquid, thereby obstruction rotor rotation, the kinetic energy of vehicle is converted into the heat energy of liquid, the speed of vehicle is minimized.Driving engine generally is in idling mode during hydrodynamic retarder work, therefore hydrodynamic retarder is under vehicle during big slope, can continue the braking force that provides constant for a long time, improve car brakeing and transmission quality greatly, guarantee traffic safety, at the level road glancing impact, it can be reposefully, do not provide vehicle required about 90% braking force with having wearing and tearing.In Europe, hydrodynamic retarder has replaced current vortex retarder becomes the most frequently used complemental brake system, and more domestic large commercial automobiles have begun to install and use hydrodynamic retarder.
When hydrodynamic retarder is worked, oil produces the needed braking force of vehicle as medium, when the normal vehicle operation of hydrodynamic retarder is housed, do not need braking force, oil is back in the petrol storage tank, but air forms air circulation under the drive of rotor in the epitrochoidal chamber of hydrodynamic retarder, produce certain lock torque, increased the vehicle ' resistance,, thus the fuel economy of vehicle reduced.At present the method taked of offshore company is at epitrochoidal chamber some devices to be set to come air circulation in the destruction work chamber, thereby reduce pump loss to a certain extent, hydrodynamic retarder as German Fu Yite company is to install a coil tension spring valve additional at epitrochoidal chamber, spring loaded valve is gone out epitrochoidal chamber by oil pressure when hydrodynamic retarder is worked, when cruising, eject and destroy air circulation, reduced this part pump loss to a certain extent; The patent No. is that the US Patent of US6923301 has disclosed a kind of gas that injects certain speed with certain angle in epitrochoidal chamber when not needing to brake and comes impinging air, reduces the speed of air circulation, thereby reduces pump loss.
Above innovative approach all is to install mechanical device additional to reduce pump loss in the limited epitrochoidal chamber in space, can not fundamentally eliminate pump loss fully.
Summary of the invention
The objective of the invention is to overcome above-mentioned the deficiencies in the prior art, provide a kind of the needs that the epitrochoidal chamber structure is done change, can fundamentally eliminate the hydraulic speed buffer structure of pump loss.
The technical solution used in the present invention is: the front end that the body of hydrodynamic retarder is fixed on change-speed box, rotor, stator and power-transfer clutch all are distributed in the outer cycle space of the input shaft of the hydrodynamic retarder in the body, rotor is fixed on the input shaft, the helical wheel that is fixed on the helical wheel on the main driving axle of change-speed box and be installed on the input shaft is meshed, helical wheel is fixed on the axle sleeve and the axle sleeve sky is enclosed within on the input shaft, and back-up ring is fixed on the input shaft of helical wheel top; The helical wheel from movable friction plate and top of power-transfer clutch links into an integrated entity, and the active friction plate of power-transfer clutch is fixed on the input shaft.
The present invention is after chaufeur is stirred hydrodynamic retarder gear handle and braked, controller sends instruction, the liquid clutch combination, oil in the pressure oil tank begins to be pressed into epitrochoidal chamber simultaneously, thereby the lock torque that produces passes to vehicle main driving axle through increasing after turning round by rotor, power-transfer clutch principal and subordinate movable friction plate, thereby car speed is minimized; Do not need glancing impact in normal vehicle operation, controller detects hydrodynamic retarder zero-span signal, thus the combination of releasing clutch, helical wheel drives power-transfer clutch and dallies from movable friction plate, the hydrodynamic retarder rotor remains static, and can not form air-flow, thoroughly eliminates pump loss.
Description of drawings:
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail.
Fig. 1 is a structure connection diagram of the present invention;
Among the figure: 1. change-speed box, 2. helical wheel, 3. main driving axle, 4. H Exch, 5. stator, 6. rotor, 7. back-up ring, 8. helical wheel, 9. body, 10. cylindrical bearing, 11. axle sleeves, 12. from movable friction plate, 13. active friction plates, 14. input shafts.
Fig. 2 is a control principle diagram of circuit of the present invention.
The specific embodiment:
As shown in Figure 1, the body 9 of hydrodynamic retarder is fixed on the front end of change-speed box 1, hydrodynamic retarder is by change-speed box 1 abrupt deceleration vehicle.The input shaft 14 of hydrodynamic retarder is installed in the body 9 of hydrodynamic retarder, and input shaft 14 is fixed on the body 9 by cylindrical bearing 10, is provided with H Exch 4 in body 9 bottoms.Liquid clutch, rotor 6, stator 5 are distributed in the outer cycle space of input shaft 14 from top to bottom in body 9, wherein, rotor 6 is by being bolted on the input shaft 14.The main driving axle 3 of change-speed box 1 and input shaft 14 parallel installations, on the main driving axle 3 in change-speed box 1 by the fixing helical wheel 2 of flat key, helical wheel 2 and the helical wheel 8 that is installed on the input shaft 14 are meshed, helical wheel 8 is fixed on the axle sleeve 11, axle sleeve 11 is that sky is enclosed within on the input shaft 14, can relatively rotate between axle sleeve 11 and the input shaft 14.Back-up ring 7 is fixed on the input shaft 14 of helical wheel 8 tops one segment distance.The helical wheel 8 from movable friction plate 12 and top of power-transfer clutch links into an integrated entity, and makes from movable friction plate 12 and just rotates along with ingear helical wheel 8.The active friction plate 13 of power-transfer clutch is fixed on the input shaft 14, makes with the coaxial angular gear 8 of input shaft 14 and can between the shaft shoulder and back-up ring 7, move vertically.
As shown in Figure 2, the present invention stirs hydrodynamic retarder gear handle and begins 15 degree and carry out glancing impact when controller detects chaufeur, controller sends instruction, detect gear handle position 16 earlier, when judgement is zero span gear 17, power-transfer clutch separates 21, judge when not being zero span gear 17, a series of power element control liquid clutchs are in conjunction with 18, high pressure air enters fuel tank 19 simultaneously, oil in the pressure oil tank begins to be pressed into epitrochoidal chamber makes retarder work 20, thereby the lock torque that produces passes through rotor, power-transfer clutch is from movable friction plate 12, power-transfer clutch increases through angular gear 8 and angular gear 2 from movable friction plate 13 and passes to vehicle main driving axle 3 after turning round, and car speed is minimized.
Claims (2)
1. the hydraulic speed buffer structure that can eliminate pump loss, the body (9) of hydrodynamic retarder is fixed on the front end of change-speed box (1), rotor (6), stator (5) and power-transfer clutch all are distributed in the outer cycle space of the input shaft (14) of the hydrodynamic retarder in the body (9), rotor (6) is fixed on the input shaft (14), it is characterized in that: will be fixed on helical wheel (2) on the main driving axle (3) of change-speed box (1) and the helical wheel (8) that is installed on the input shaft (14) and be meshed, helical wheel (8) is fixed on the axle sleeve (11) and axle sleeve (11) sky is enclosed within on the input shaft (14), and back-up ring (7) is fixed on the input shaft (14) of helical wheel (8) top; The helical wheel (8) from movable friction plate (12) and top of power-transfer clutch links into an integrated entity, and the active friction plate (13) of power-transfer clutch is fixed on the input shaft (14).
2. a kind of hydraulic speed buffer structure that can eliminate pump loss according to claim 1 is characterized in that: angular gear (2) is fixing with main driving axle (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100204982A CN101239616A (en) | 2008-03-10 | 2008-03-10 | Hydraulic speed buffer structure capable of eliminating pumping loss |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100204982A CN101239616A (en) | 2008-03-10 | 2008-03-10 | Hydraulic speed buffer structure capable of eliminating pumping loss |
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| Publication Number | Publication Date |
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| CN101239616A true CN101239616A (en) | 2008-08-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100204982A Pending CN101239616A (en) | 2008-03-10 | 2008-03-10 | Hydraulic speed buffer structure capable of eliminating pumping loss |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102303300A (en) * | 2011-07-29 | 2012-01-04 | 深圳市特尔佳科技股份有限公司 | Hydraulic retarder installation tool and installation method thereof |
| CN103407436A (en) * | 2013-08-28 | 2013-11-27 | 江苏理工学院 | Electromagnetic control type air loss energy consumption removing and low-speed performance improving device for hydrodynamic retarder |
| CN103407435A (en) * | 2013-08-28 | 2013-11-27 | 江苏理工学院 | Hydraulic control type device capable of eliminating pumping loss and improving low-speed performance of hydraulic retarder |
| CN104029664A (en) * | 2014-06-20 | 2014-09-10 | 吉林大学 | Hydraulic retarder with locking device and control oil path, capable of eliminating windage loss |
| CN105202074A (en) * | 2015-09-21 | 2015-12-30 | 哈尔滨工业大学 | Parallel type hydraulic retarder with clutch device and separation method of parallel type hydraulic retarder |
| CN105909753A (en) * | 2016-06-24 | 2016-08-31 | 潍柴动力股份有限公司 | Connecting structure of transmission and parallel hydrodynamic retarder |
| CN109083947A (en) * | 2018-08-02 | 2018-12-25 | 江苏大学 | A kind of fluid power double disk brake and its braking method |
| CN110081099A (en) * | 2019-05-24 | 2019-08-02 | 苏州特速安机电科技有限公司 | A kind of fluid power deceleration device |
| CN110081098A (en) * | 2019-05-24 | 2019-08-02 | 苏州特速安机电科技有限公司 | A kind of fluid power deceleration device |
| CN110081097A (en) * | 2019-05-24 | 2019-08-02 | 苏州特速安机电科技有限公司 | A kind of fluid power deceleration device |
-
2008
- 2008-03-10 CN CNA2008100204982A patent/CN101239616A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102303300A (en) * | 2011-07-29 | 2012-01-04 | 深圳市特尔佳科技股份有限公司 | Hydraulic retarder installation tool and installation method thereof |
| CN102303300B (en) * | 2011-07-29 | 2013-04-17 | 深圳市特尔佳科技股份有限公司 | Hydraulic retarder installation tool and installation method thereof |
| CN103407435B (en) * | 2013-08-28 | 2016-06-08 | 江苏理工学院 | Hydraulic controlling type is eliminated hydrodynamic retarding device sky and is damaged energy consumption and improve low speed performance devices |
| CN103407435A (en) * | 2013-08-28 | 2013-11-27 | 江苏理工学院 | Hydraulic control type device capable of eliminating pumping loss and improving low-speed performance of hydraulic retarder |
| CN103407436A (en) * | 2013-08-28 | 2013-11-27 | 江苏理工学院 | Electromagnetic control type air loss energy consumption removing and low-speed performance improving device for hydrodynamic retarder |
| CN103407436B (en) * | 2013-08-28 | 2016-07-06 | 江苏理工学院 | Electromagnetic control type eliminates Retarder sky and damages energy consumption and improve low-speed performance device |
| CN104029664A (en) * | 2014-06-20 | 2014-09-10 | 吉林大学 | Hydraulic retarder with locking device and control oil path, capable of eliminating windage loss |
| CN105202074A (en) * | 2015-09-21 | 2015-12-30 | 哈尔滨工业大学 | Parallel type hydraulic retarder with clutch device and separation method of parallel type hydraulic retarder |
| CN105202074B (en) * | 2015-09-21 | 2017-10-03 | 哈尔滨工业大学 | A kind of parallel hydraulic retarder and its separation method with arrangement of clutch |
| CN105909753A (en) * | 2016-06-24 | 2016-08-31 | 潍柴动力股份有限公司 | Connecting structure of transmission and parallel hydrodynamic retarder |
| CN109083947A (en) * | 2018-08-02 | 2018-12-25 | 江苏大学 | A kind of fluid power double disk brake and its braking method |
| CN110081099A (en) * | 2019-05-24 | 2019-08-02 | 苏州特速安机电科技有限公司 | A kind of fluid power deceleration device |
| CN110081098A (en) * | 2019-05-24 | 2019-08-02 | 苏州特速安机电科技有限公司 | A kind of fluid power deceleration device |
| CN110081097A (en) * | 2019-05-24 | 2019-08-02 | 苏州特速安机电科技有限公司 | A kind of fluid power deceleration device |
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Open date: 20080813 |