CN204784312U - Built -in stopper - Google Patents
Built -in stopper Download PDFInfo
- Publication number
- CN204784312U CN204784312U CN201520281519.1U CN201520281519U CN204784312U CN 204784312 U CN204784312 U CN 204784312U CN 201520281519 U CN201520281519 U CN 201520281519U CN 204784312 U CN204784312 U CN 204784312U
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- CN
- China
- Prior art keywords
- piston
- built
- steel disc
- return
- stopper
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model belongs to the technical field of automatic gearbox for the heavy truck, relate to a built -in stopper, including stopper cylinder, piston, return top cover, stopper base, steel sheet, friction disc and return spring, stopper base and clutch housing fixed connection, stopper cylinder and stopper base fixed connection, friction disc and transmission countershaft are through the splined connection, return spring installs in the hole of transmission countershaft front end, and return top cover is passed through to one end and the piston extrusion is in the same place, and the other end is in the same place with the bottom surface extrusion of transmission countershaft hole, when built -in stopper was out of work, the piston was pushed up the cover location by the return and in the bottom of stopper cylinder, has the clearance between piston and the steel sheet under return spring's installation pretightning force effect, built -in stopper during operation, piston are under the effect of atmospheric pressure, and the extrusion steel sheet makes and produces friction torque between steel sheet and the friction disc, the utility model discloses simple structure, the quick accuracy of speed regulation, the reliability is high, low in production cost.
Description
Technical field
The utility model belongs to the technical field of heavy truck automatic transmission, relates to a kind of built-in break.
Background technique
The main tank of current most of heavy truck automatic transmission not tape synchronizers, adopt the gear shift of soldered tooth cover more.If lack break, could gear shift after transmission input shaft nature reduction of speed to suitable rotational speed need be waited for during gear shift, extend shift time, car load power character is deteriorated.In addition, gear shifting rotational speed difference is difficult to control, and easily produces shifting shock or beats tooth, damaging speed changer.Therefore, need increase break, by brake by input shaft adjustment of rotational speed in certain limit, ensure smooth-going, fast slewing.
Summary of the invention
The purpose of this utility model overcomes the technical problem that the transmission up-shift rotating speed without synchronizer existed in prior art is difficult to quick adjustment, provides a kind of built-in break.
Below in conjunction with accompanying drawing, the utility model is described in further detail:
A kind of built-in break, comprises stopper cylinder 1, piston 3, return top cover 4, brake mount 6, steel disc 7, friction plate 8, transmission countershaft 9 and return spring 10; Described brake mount 6 is fixedly connected with clutch housing 5, and described stopper cylinder 1 is fixedly connected with brake mount 6; Described steel disc 7 is connected with brake mount 6 by locating stud 2, and steel disc 7 can move axially along locating stud 2;
Described friction plate 8 passes through spline joint with transmission countershaft 9;
Described piston 3 is between stopper cylinder 1 and steel disc 7;
Described return spring 10 is arranged in the endoporus of transmission countershaft 9 front end, and return spring 10 one end is pressed together by return top cover 4 and piston 3, and the bottom surface of the other end and transmission countershaft 9 endoporus presses together.
The top cover of return described in technological scheme 4 and transmission countershaft 9 endoporus inwall are provided with gap.
In technological scheme, the quantity of steel disc 7 and friction plate 8 increases according to braking moment size or reduces; Steel disc 7 is disposed on friction plate 8 both sides, arranges steel disc 7 near piston 3 and brake mount 6 place;
Return spring 10 described in technological scheme adopts helical spring.
The top cover of return described in technological scheme 4 adopts top tip structure, is provided with two exhaust ports in top both sides.
When described in technological scheme, built-in break does not work, piston 3, under the installation pretightening force effect of return spring 10, is positioned at the bottom of stopper cylinder 1 by return top cover 4, there is gap between piston 3 and steel disc 7;
During described built-in brake operation, under the influence of air pressure, extruding steel disc 7, makes to produce friction torque between steel disc 7 and friction plate 8 piston 3.
Compared with prior art, Advantageous Effects of the present utility model:
The utility model is in vehicle start or shifting up operation, the control of break Detaching and Lapping action is carried out by electrical signal automatic control electric magnet valve break-make, transmission input shaft rotating speed is dropped within the scope of rotating speed of target, the utility model is simple and compact for structure, rotational speed regulation quick and precisely, reliability is high, and cost of production is low.
Accompanying drawing explanation
Fig. 1 is the built-in brake structural schematic diagram of the utility model;
Fig. 2 is the schematic diagram of the utility model built-in break return top cover;
Fig. 3 is the schematic diagram of the built-in break steel disc of the utility model;
Fig. 4 is the built-in break explosive decomposition figure of the utility model;
In figure: 1, stopper cylinder; 2, locating stud; 3, piston; 4, return top cover; 5, clutch housing; 6, brake mount; 7, steel disc; 8, friction plate; 9, transmission countershaft; 10, return spring.
Specific embodiments
Specific embodiments of the present utility model is described in detail below in conjunction with accompanying drawing.
This break is arranged on the front end of transmission countershaft 9, brake mount 6 is linked together by bolt and clutch housing 5, stopper cylinder 1 is linked together by bolt and brake mount 6, friction plate 8 is linked together by spline and transmission countershaft 9, along with transmission countershaft 9 rotates together.The quantity of steel disc and friction plate can braking moment size and promote or reduce as required.Steel disc interval is placed on friction plate both sides, and can only put steel disc 7 near piston 3 and brake mount 6, steel disc 7 is connected with brake mount 6 by locating stud 2, can only move horizontally, and can not rotate.In the present embodiment, steel disc 7 is provided with three, and friction plate 8 is provided with two, and two friction plates 8 are sandwiched between three steel discs 7;
Friction plate 8 can move axially on jack shaft 9, and steel disc 7 can move axially along locating stud 2, and during to ensure to brake, piston 3 overcomes the returning place force of return spring 10, by steel disc 7 and friction plate 8 axial compression, brakes.
When break does not work, piston 3, under the installation pretightening force effect of return spring 10, is positioned at the bottom of stopper cylinder 1 by return top cover 4, return top cover 4 often contacts with piston 3, and piston 3 and steel disc 7 exist certain interval.
When vehicle needs upshift in the process of moving, transmission control computer sends work order to the Controlling solenoid valve of break, solenoid valve is opened, pressurized gas to enter in stopper cylinder 1 by the A on solenoid valve and stopper cylinder 1 to suction port, piston 3 travels forward under the effect of high pressure air, and extruding steel disc 7, under extruding force effect, steel disc 7 and friction plate 8 move to brake mount 6 direction, are finally pressed in brake mount 6.By compressing, between steel disc 7 and friction plate 8, produce friction torque, thus reduce the rotating speed of transmission countershaft 9, because transmission countershaft 9 is rotated by constant mesh gear together with transmission input shaft, so the also corresponding reduction of the rotating speed of input shaft.When input shaft rotating speed drops within the scope of rotating speed of target, solenoid valve power-off, high pressure air enters air by the suction port of stopper cylinder 1 and solenoid valve, and now piston 3 gets back to initial position under the effect of return spring 10, sliding wear between steel disc 7 and friction plate 8 is removed, and break quits work.
In this break, return spring 10 is arranged in the endoporus of transmission countershaft 9 front end, there is certain installation pretightening force, its one end is pressed together by return top cover 4 and piston 3, piston 3 non rotating, the bottom surface of the other end and transmission countershaft 9 endoporus presses together, when vehicle travels, transmission countershaft 9 often rotates, and return top cover 4 is also very little with the gap of transmission countershaft 9 endoporus inwall; Return spring 10 withstands on transmission countershaft 9 by pre-pressing force, therefore, produces frictional force; In order to avoid transmission countershaft 9 rotate time, return spring 10 is driven to rotate relative to transmission countershaft 9, cause stirring spring, choke with resentment in order to avoid piston 3 promotes transmission countershaft 9 endoporus when return top cover 4 is moved in addition, produce injector effect, return top cover 4 adopts the special construction shown in Fig. 2.When top in this structure can prevent transmission countershaft 9 from rotating, return spring 10 rotates relative to transmission countershaft 9, and gas when return top cover 4 is moved in transmission countershaft 9 endoporus is discharged by the aperture of return top cover 4 both sides, just can avoid choking with resentment.
Claims (6)
1. a built-in break, comprises stopper cylinder (1), piston (3), return top cover (4), brake mount (6), steel disc (7), friction plate (8), transmission countershaft (9) and return spring (10); It is characterized in that:
Described brake mount (6) is fixedly connected with clutch housing (5), and described stopper cylinder (1) is fixedly connected with brake mount (6); Described steel disc (7) is connected with brake mount (6) by locating stud (2), and steel disc (7) can move axially along locating stud (2);
Described friction plate (8) and transmission countershaft (9) pass through spline joint;
Described piston (3) is positioned between stopper cylinder (1) and steel disc (7);
Described return spring (10) is arranged in the endoporus of transmission countershaft (9) front end, return spring (10) one end is pressed together by return top cover (4) and piston (3), and the bottom surface of the other end and transmission countershaft (9) endoporus presses together.
2. the built-in break of one according to claim 1, is characterized in that:
Described return top cover (4) and transmission countershaft (9) endoporus inwall are provided with gap.
3. the built-in break of one according to claim 1, is characterized in that:
The quantity of described steel disc (7) and friction plate (8) increases according to braking moment size or reduces; Described steel disc (7) is disposed on friction plate (8) both sides, arranges steel disc (7) near piston (3) and brake mount (6) place.
4. the built-in break of one according to claim 1, is characterized in that:
Described return spring (10) adopts helical spring.
5. the built-in break of one according to claim 1, is characterized in that:
Described return top cover (4) adopts top tip structure, is provided with two exhaust ports in top both sides.
6. the built-in break of one according to claim 1, is characterized in that:
When described built-in break does not work, piston (3) is under the installation pretightening force effect of return spring (10), be positioned at the bottom of stopper cylinder (1) by return top cover (4), between piston (3) and steel disc (7), there is gap;
During described built-in brake operation, under the influence of air pressure, extruding steel disc (7), makes to produce friction torque between steel disc (7) and friction plate (8) piston (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520281519.1U CN204784312U (en) | 2015-05-04 | 2015-05-04 | Built -in stopper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520281519.1U CN204784312U (en) | 2015-05-04 | 2015-05-04 | Built -in stopper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204784312U true CN204784312U (en) | 2015-11-18 |
Family
ID=54524367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520281519.1U Expired - Fee Related CN204784312U (en) | 2015-05-04 | 2015-05-04 | Built -in stopper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204784312U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109163031A (en) * | 2018-09-26 | 2019-01-08 | 陕西法士特齿轮有限责任公司 | A kind of AMT intermediate shaft brake structure |
| CN110206833A (en) * | 2019-06-24 | 2019-09-06 | 一汽解放汽车有限公司 | A kind of penetrating bridge wet braking structure |
| CN110336409A (en) * | 2019-06-27 | 2019-10-15 | 天津中德传动有限公司 | A kind of pneumatic locking system of generator suitable for the mixed dynamic gearbox of coaxial-type |
| CN111255827A (en) * | 2020-01-17 | 2020-06-09 | 一汽解放汽车有限公司 | AMT intermediate shaft brake steel sheet and friction disc disengage structure |
| CN114370466A (en) * | 2022-01-21 | 2022-04-19 | 一汽解放汽车有限公司 | Intermediate shaft brake |
| CN114370464A (en) * | 2022-01-21 | 2022-04-19 | 一汽解放汽车有限公司 | Intermediate shaft brake |
-
2015
- 2015-05-04 CN CN201520281519.1U patent/CN204784312U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109163031A (en) * | 2018-09-26 | 2019-01-08 | 陕西法士特齿轮有限责任公司 | A kind of AMT intermediate shaft brake structure |
| 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 |
| CN110206833A (en) * | 2019-06-24 | 2019-09-06 | 一汽解放汽车有限公司 | A kind of penetrating bridge wet braking structure |
| CN110336409A (en) * | 2019-06-27 | 2019-10-15 | 天津中德传动有限公司 | A kind of pneumatic locking system of generator suitable for the mixed dynamic gearbox of coaxial-type |
| CN111255827A (en) * | 2020-01-17 | 2020-06-09 | 一汽解放汽车有限公司 | AMT intermediate shaft brake steel sheet and friction disc disengage structure |
| CN114370466A (en) * | 2022-01-21 | 2022-04-19 | 一汽解放汽车有限公司 | Intermediate shaft brake |
| CN114370464A (en) * | 2022-01-21 | 2022-04-19 | 一汽解放汽车有限公司 | Intermediate shaft brake |
| CN114370464B (en) * | 2022-01-21 | 2023-06-16 | 一汽解放汽车有限公司 | Intermediate shaft brake |
| CN114370466B (en) * | 2022-01-21 | 2023-06-16 | 一汽解放汽车有限公司 | Intermediate shaft brake |
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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: 20151118 Termination date: 20160504 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |