CN102537151B - Transmission brake based on clutch actuating mechanism - Google Patents

Transmission brake based on clutch actuating mechanism Download PDF

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Publication number
CN102537151B
CN102537151B CN201210044562.7A CN201210044562A CN102537151B CN 102537151 B CN102537151 B CN 102537151B CN 201210044562 A CN201210044562 A CN 201210044562A CN 102537151 B CN102537151 B CN 102537151B
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China
Prior art keywords
brake
actuating mechanism
speed changer
clutch
clutch actuating
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CN102537151A (en
Inventor
张志伟
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Shaanxi Fast Gear Co Ltd
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Shaanxi Fast Gear Co Ltd
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Priority to CN201210044562.7A priority Critical patent/CN102537151B/en
Publication of CN102537151A publication Critical patent/CN102537151A/en
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Abstract

The invention discloses a transmission brake based on a clutch actuating mechanism, wherein the transmission brake comprises a clutch separation bearing, a sensing driving device and a brake device, wherein the sensing driving device is connected with the clutch separation bearing; the brake device is arranged between transmission intermediate shafts and a transmission shell; and the sensing driving device is adaptive to the brake device. According to the transmission brake based on the clutch actuating mechanism, friction devices are installed on the shaft heads of two intermediate shafts; and the brake response is rapid, and the transmission brake based on the clutch actuating mechanism is stable and is high in intensity.

Description

Based on the speed changer brake of clutch actuating mechanism
Technical field
The present invention relates to transmission for vehicles field, particularly relate to the speed changer brake based on clutch actuating mechanism.
Background technique
At present, a break is all comprised in commercial car AMT system both domestic and external.When break is used for vehicle start and upshift, braking deceleration is carried out to an axle and the transmission part that is associated thereof, to shorten lock in time, reduce shift shock.For the break of AMT according to different design and installations in force taking window of speed variator mouth or jack shaft spindle nose place.Drive form mainly contains electromagnetism, hydraulic pressure and pneumatic three kinds of forms.The break of these three kinds of forms needs special actuator to drive, and respectively has pluses and minuses.Electromagnetic brake response is fast, but complex structure.Hydraulic pressure and pneumatic braking device low-response, and there is oil and gas leakage problem.
Summary of the invention
In order to solve technical problem existing in background technique, the present invention proposes a kind of speed changer brake based on clutch actuating mechanism, rubbing device is arranged on two jack shaft spindle noses.Braking response is quick, steadily and intensity is large.
Technical solution of the present invention is: based on the speed changer brake of clutch actuating mechanism, its special way is: described speed changer brake comprises the sensing drive unit that clutch release bearing is connected with clutch release bearing and the braking device be arranged between transmission countershaft and case of transmission, described sensing drive unit and braking device adaptation.
Above-mentioned sensing drive unit is brake holder, and described brake holder is fixedly connected with brake piston.
Above-mentioned sensing drive unit comprises sensing unit and driver element, and described sensing unit is the sensor coordinated with clutch release bearing; Described driver element is and the hydraulic pressure of braking device adaptation or electromagnetic drive mechanism.
Above-mentioned braking device comprises brake piston and the friction pair with brake piston adaptation, and described brake piston is connected with sensing drive unit.
Above-mentioned friction pair is the friction pair of the conical surface on the friction pair of multiple friction plate composition or piston and conical surface adaptive brake on jack shaft.
Above-mentioned multiple friction plate comprises one group of brake strip and one group of braking steel disc, spaced on described brake strip and braking steel disc axial direction, described brake strip or braking steel disc are coordinated by spline or keyway with clutch housing, and described braking steel disc or brake strip are coordinated by spline or keyway with jack shaft.
Arrange Compress Spring between above-mentioned brake piston and brake intermediate shaft, described Compress Spring is arranged in the hole on jack shaft.
Arrange spring housing between above-mentioned Compress Spring and jack shaft, described spring housing is volute spring cover.
The top of above-mentioned spring housing is connected with brake piston, the hole compact siro spinning technology on the side of described spring housing and jack shaft.
The present invention is a kind of speed changer brake design proposal, propose the speed changer brake based on clutch actuating mechanism, eliminate the special actuator of existing break, clutch actuating mechanism is utilized to drive clutch release bearing to drive, without the need to special break driving mechanism, reduce cost, decrease fault point.Also without the need to the special Electric drive module for break.Can select according to actual needs arbitrary jack shaft or two intermediate shaft brake, mode of braking is flexible simultaneously.
Braking device is arranged on two jack shaft spindle noses, and braking response is quick, steadily and intensity is large.Because the control accuracy of AMT clutch actuating mechanism to power and stroke is high, therefore driven brake steadily and braking force is adjustable within the specific limits.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 .1, Fig. 2 .2 are the structural representations of medi-spring of the present invention cover;
Embodiment
See Fig. 1, the speed changer brake based on clutch actuating mechanism of the present invention, comprises clutch release bearing 1, brake holder 2, brake piston 3, brake strip 4, braking steel disc 5, spring housing 6 and Compress Spring 7; Brake piston 3, brake strip 4, braking steel disc 5 form braking device, and braking device is arranged on two jack shaft spindle noses.Brake strip 4, braking steel disc 5 form a friction pair.
The mode of brake holder 2 can be not limited to this mechanical structure, also can adopt the mode of electronic sensor and hydraulic driving or Electromagnetic Drive, as long as it is just passable to the driving of brake piston to realize clutch release bearing.Friction pair also can adopt the form of cone of friction, namely completes braking by the conical surface adaptation on the piston conical surface and jack shaft.Brake strip 4 is nonmetallic material, and braking steel disc 5 is metallic material.Between described brake piston and jack shaft, Compress Spring is set, Compress Spring is provided with spring housing 6, described Compress Spring and spring housing 6 are nested in the hole on jack shaft, spring housing 6 is volute spring covers, the top of spring housing 6 contacts with brake piston 3 and coordinates, the concrete structure of spring housing 6 is see Fig. 2 .1, Fig. 2 .2, volute spring cover is the cylindrical spring cover with tapered tip, the top of volute spring cover is plane or sphere, in Fig. 2 .1, the top of volute spring cover is sphere, and in Fig. 2 .2, the top of volute spring cover is plane.
Speed changer brake based on clutch actuating mechanism of the present invention, after clutch separation, think as AMT system and need to brake transmission input shaft, then continue through clutch actuating mechanism promotion clutch release bearing 1 and move to the direction away from motor.At this moment clutch release bearing 1 can promote brake holder 2, brake holder 2 and two brake piston 3 bolton, and therefore brake holder 2 can drive brake piston 3 to move right together, thus compresses brake strip 4 and braking steel disc 5.Braking steel disc 5 and clutch housing are fixed together, brake strip 4 is by spline and jack shaft engagement rotation, therefore when brake strip 4 and braking steel disc 5 are compacted time, between braking steel disc 5 and brake strip 4, just create friction torque, this friction torque just can carry out braking deceleration to jack shaft.When AMT system thinks that Braking efficiency reaches requirement, solenoidoperated cluthes actuator also drives clutch release bearing 1 to move to the direction near motor.The active force of clutch release bearing 1 pair of brake holder 2 will disappear.Now, Compress Spring 7 and spring housing 6 will promote left brake piston 3.Between brake piston 3 and friction pair positive pressure disappearance while, also eliminate the braking force to jack shaft.

Claims (7)

1. based on the speed changer brake of clutch actuating mechanism, it is characterized in that: described speed changer brake comprises the sensing drive unit that clutch release bearing is connected with clutch release bearing and the braking device be arranged between transmission countershaft and case of transmission, described sensing drive unit and braking device adaptation; Described braking device comprises brake piston and the friction pair with brake piston adaptation, and described brake piston is connected with sensing drive unit; Arrange Compress Spring between described brake piston and transmission countershaft, described Compress Spring is arranged in the hole on jack shaft.
2. the speed changer brake based on clutch actuating mechanism according to claim 1, is characterized in that: described sensing drive unit is brake holder, and described brake holder is fixedly connected with brake piston.
3. the speed changer brake based on clutch actuating mechanism according to claim 1, is characterized in that: described sensing drive unit comprises sensing unit and driver element, and described sensing unit is the sensor coordinated with clutch release bearing; Described driver element is and the hydraulic pressure of braking device adaptation or electromagnetic drive mechanism.
4. the speed changer brake based on clutch actuating mechanism according to claim 3, is characterized in that: described friction pair is the friction pair of the conical surface on the friction pair of multiple friction plate composition or piston and conical surface adaptive brake on jack shaft.
5. the speed changer brake based on clutch actuating mechanism according to claim 4, it is characterized in that: described multiple friction plate comprises one group of brake strip and one group of braking steel disc, spaced on described brake strip and braking steel disc axial direction, described brake strip or braking steel disc are coordinated by spline or keyway with clutch housing, and described braking steel disc or brake strip are coordinated by spline or keyway with jack shaft.
6. the speed changer brake based on clutch actuating mechanism according to claim 5, is characterized in that: arrange spring housing between described Compress Spring and jack shaft, described spring housing is volute spring cover.
7. the speed changer brake based on clutch actuating mechanism according to claim 6, is characterized in that: the top of described spring housing is connected with brake piston, the hole compact siro spinning technology on the side of described spring housing and jack shaft.
CN201210044562.7A 2012-02-24 2012-02-24 Transmission brake based on clutch actuating mechanism Active CN102537151B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210044562.7A CN102537151B (en) 2012-02-24 2012-02-24 Transmission brake based on clutch actuating mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210044562.7A CN102537151B (en) 2012-02-24 2012-02-24 Transmission brake based on clutch actuating mechanism

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CN102537151A CN102537151A (en) 2012-07-04
CN102537151B true CN102537151B (en) 2015-01-21

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102943864A (en) * 2012-10-29 2013-02-27 陕西法士特齿轮有限责任公司 Automated mechanical transmission for passenger car
CN107825960A (en) * 2017-11-07 2018-03-23 国机重工(洛阳)建筑机械有限公司 A kind of gearbox auxiliary brake mechanism
CN109163031B (en) * 2018-09-26 2024-01-02 陕西法士特齿轮有限责任公司 AMT jackshaft braking structure

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4108295A (en) * 1975-02-11 1978-08-22 Societe Anonyme Francaise Du Ferodo Inertia-brake control for input shaft of gear box, and its application to clutches and units formed by a clutch and a gear-box
US4579203A (en) * 1982-08-04 1986-04-01 Fichtel & Sachs Ag Drive unit
CN1176353A (en) * 1996-07-22 1998-03-18 易通公司 Transmission inertia brake with self energizing
CN1232147A (en) * 1998-03-31 1999-10-20 易通公司 Transmission inertia brake with ball ramp actuation
CN201925370U (en) * 2010-07-27 2011-08-10 一汽解放青岛汽车厂 Intermediate shaft brake of transmission for heavy-duty vehicle
CN102240829A (en) * 2011-05-04 2011-11-16 李向普 Novel friction type clutch brake mechanism of steel plate shearer
CN202484155U (en) * 2012-02-24 2012-10-10 陕西法士特齿轮有限责任公司 Speed changer brake based on clutch actuating mechanism

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4108295A (en) * 1975-02-11 1978-08-22 Societe Anonyme Francaise Du Ferodo Inertia-brake control for input shaft of gear box, and its application to clutches and units formed by a clutch and a gear-box
US4579203A (en) * 1982-08-04 1986-04-01 Fichtel & Sachs Ag Drive unit
CN1176353A (en) * 1996-07-22 1998-03-18 易通公司 Transmission inertia brake with self energizing
CN1232147A (en) * 1998-03-31 1999-10-20 易通公司 Transmission inertia brake with ball ramp actuation
CN201925370U (en) * 2010-07-27 2011-08-10 一汽解放青岛汽车厂 Intermediate shaft brake of transmission for heavy-duty vehicle
CN102240829A (en) * 2011-05-04 2011-11-16 李向普 Novel friction type clutch brake mechanism of steel plate shearer
CN202484155U (en) * 2012-02-24 2012-10-10 陕西法士特齿轮有限责任公司 Speed changer brake based on clutch actuating mechanism

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