CN201554803U - Brake for gear box - Google Patents
Brake for gear box Download PDFInfo
- Publication number
- CN201554803U CN201554803U CN2009202817045U CN200920281704U CN201554803U CN 201554803 U CN201554803 U CN 201554803U CN 2009202817045 U CN2009202817045 U CN 2009202817045U CN 200920281704 U CN200920281704 U CN 200920281704U CN 201554803 U CN201554803 U CN 201554803U
- Authority
- CN
- China
- Prior art keywords
- piston
- braking
- brake
- countershaft
- friction plate
- Prior art date
- 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 - Lifetime
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- Braking Arrangements (AREA)
- General Details Of Gearings (AREA)
Abstract
The utility model discloses a brake for a gear box and belongs to the technical field of brake devices. The brake for a gear box is provided with a top pin at a shaft center in the shaft end of a counter shaft and a friction plate is arranged on the periphery of the shaft end, wherein the top pin is connected with a return spring in the counter shaft; a piston is connected with the exterior of the counter shaft; the piston is connected with an end cover through an O-shaped sealing ring sleeved on the piston; an air cavity is formed between the piston and the counter shaft; the air cavity is connected with a brake air pipe; the brake air pipe is connected with a solenoid valve; the friction plate is connected with a brake block through a stopping pin; and the brake block is connected with the piston. The utility model can shorten the gear synchronous time when the gear box is speeded up, can rapidly shift, can radiate the heat generated by braking as soon as possible and can decrease the loss.
Description
Technical field:
The utility model relates to a kind of braking device, particularly a kind of break of lorry mechanical gear box.
Background technique:
Current, heavy gearbox is to lean on the natural reduction of speed of gear to reach the synchronous of gearshift when upshift, the gearshift time is long, can not satisfy the needs of mechanical automatic gearbox (AMT), the lock in time of gear when reducing upshift, be badly in need of a kind of gearbox brake of exploitation mechanism.
The model utility content:
The purpose of this utility model provides a kind of gearbox brake, the gear lock in time when this kind break can shorten the gearbox upshift.
The technological scheme that the utility model is taked is:
A kind of gearbox brake comprises countershaft, it is characterized in that being provided with ejector pin at the axle head inner axes place of countershaft, and the axle head periphery is provided with friction plate; Ejector pin is connected with return spring in countershaft, be connected with piston outside countershaft, and piston links to each other with end cap by being enclosed within its outer O RunddichtringO, forms air chamber between piston and the end cap, and air chamber is connected with the braking tracheae, and the braking tracheae is connected with solenoid valve; Friction plate is connected with braking plate by stop pin, and braking plate and piston join.
Described friction plate is connected with countershaft by spline.
Described braking tracheae is fixed on the end cap.
Described braking plate and stop pin are for flexibly connecting.
The upper end of described end cap is provided with oil inlet pipe, and oil inlet pipe is leading to the space between friction plate and braking plate.
Above-mentioned friction plate can rotate with countershaft, also can move axially along spline, and braking plate pins and can not rotate by stop pin, but can move axially along stop pin, piston leans against on the inwall of end cap under the effect of return spring and ejector pin, has the gap between friction plate and the braking plate; When the speed changer upshift, solenoid valve is received instruction and is started working, and a mouth and b mouth are connected, and pressurized gas passes through solenoid valve, enter the air chamber that end cap and piston and O RunddichtringO form along the braking tracheae, pressurized gas promotes piston and moves right, and braking plate moves axially along stop pin, and eliminate in the gap between braking plate and the friction plate, because braking plate can not rotate, thereby the generation friction torque is slowed down friction plate and countershaft, thereby is taken the effect that makes the gear reduction of speed to.The utility model is applicable to multiple vehicle, is specially adapted to HW-A7 series vehicle.
Gear lock in time when the utility model can shorten the gearbox upshift, realize crash change of speed, the heat that braking simultaneously produces can shed as early as possible, reduces loss.
Description of drawings:
Fig. 1 is a structural representation of the present utility model;
Wherein: 1. solenoid valve, 2. braking tracheae, 3. end cap, 4. piston, 5.O RunddichtringO, 6. oil inlet pipe, 7. countershaft end cap, 8. countershaft, 9. return spring, 10. ejector pin, 11. friction plates, 12. braking plates, 13. stop pin.
Embodiment:
Further specify the utility model below in conjunction with embodiment.
A kind of gearbox brake comprises countershaft 8, is provided with ejector pin 10 at the axle head inner axes place of countershaft 8, and the axle head periphery is provided with friction plate 11; Ejector pin 10 is connected with return spring 9 in countershaft 8, be connected with piston 4 outside countershaft 8, and piston 4 links to each other with end cap 3 by being enclosed within its outer O RunddichtringO 5, forms air chamber between piston 4 and the end cap 3, and air chamber is connected with braking tracheae 2, and braking tracheae 2 is connected with solenoid valve 1; Friction plate 11 is connected with braking plate 12 by stop pin 13, and braking plate 12 joins with piston 4.
Claims (5)
1. a gearbox brake comprises countershaft, it is characterized in that being provided with ejector pin at the axle head inner axes place of countershaft, and the axle head periphery is provided with friction plate; Ejector pin is connected with return spring in countershaft, be connected with piston outside countershaft, and piston links to each other with end cap by being enclosed within its outer O RunddichtringO, forms air chamber between piston and the end cap, and air chamber is connected with the braking tracheae, and the braking tracheae is connected with solenoid valve; Friction plate is connected with braking plate by stop pin, and braking plate and piston join.
2. according to the described a kind of gearbox brake of claim 1, it is characterized in that described friction plate is connected with countershaft by spline.
3. according to the described a kind of gearbox brake of claim 1, it is characterized in that described braking tracheae is fixed on the end cap.
4. according to the described a kind of gearbox brake of claim 1, it is characterized in that described braking plate and stop pin are for flexibly connecting.
5. according to the described a kind of gearbox brake of claim 1, it is characterized in that the upper end of described end cap is provided with oil inlet pipe, oil inlet pipe is leading to the space between friction plate and braking plate.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2009202817045U CN201554803U (en) | 2009-11-19 | 2009-11-19 | Brake for gear box |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2009202817045U CN201554803U (en) | 2009-11-19 | 2009-11-19 | Brake for gear box |
Publications (1)
Publication Number | Publication Date |
---|---|
CN201554803U true CN201554803U (en) | 2010-08-18 |
Family
ID=42614485
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2009202817045U Expired - Lifetime CN201554803U (en) | 2009-11-19 | 2009-11-19 | Brake for gear box |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN201554803U (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102943828A (en) * | 2012-11-26 | 2013-02-27 | 陕西法士特齿轮有限责任公司 | Automated mechanical transmission (AMT) braking device |
CN114110156A (en) * | 2021-11-29 | 2022-03-01 | 中国重汽集团济南动力有限公司 | AMT transmission brake gas circuit and control method thereof |
-
2009
- 2009-11-19 CN CN2009202817045U patent/CN201554803U/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102943828A (en) * | 2012-11-26 | 2013-02-27 | 陕西法士特齿轮有限责任公司 | Automated mechanical transmission (AMT) braking device |
CN102943828B (en) * | 2012-11-26 | 2015-05-13 | 陕西法士特齿轮有限责任公司 | Automated mechanical transmission (AMT) braking device |
CN114110156A (en) * | 2021-11-29 | 2022-03-01 | 中国重汽集团济南动力有限公司 | AMT transmission brake gas circuit and control method thereof |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CX01 | Expiry of patent term | ||
CX01 | Expiry of patent term |
Granted publication date: 20100818 |