CN201193024Y - Road roller parking brake system - Google Patents
Road roller parking brake system Download PDFInfo
- Publication number
- CN201193024Y CN201193024Y CNU2008200321962U CN200820032196U CN201193024Y CN 201193024 Y CN201193024 Y CN 201193024Y CN U2008200321962 U CNU2008200321962 U CN U2008200321962U CN 200820032196 U CN200820032196 U CN 200820032196U CN 201193024 Y CN201193024 Y CN 201193024Y
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- CN
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- Prior art keywords
- valve
- brake
- assistor
- outlet
- gas
- 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 - Fee Related
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Abstract
The utility model relates to a parking braking system of a road roller, which comprises an air compressor (1), a combinational valve (2), a gas storage cylinder (3), a braking valve (4), a pneumatic oil assistor (5) and a constantly-closed spot-type disc brake (6), wherein, the compressed air outlet of the air compressor (1) is connected with the inlet of the combinational valve (2); the outlet of the combinational valve (2) is connected with the inlet of the gas storage cylinder (3); the outlet of the gas storage cylinder is connected with the gas inlet of the braking valve (4); the gas outlet of the braking valve (4) is connected with the pneumatic oil assistor (5); the pneumatic oil assistor (5) is connected with the constantly-closed spot-type disc brake (6). The parking braking system can greatly improve the stability of the braking system.
Description
Technical field:
The utility model relates to a kind of emergency brake system, relates in particular to a kind of emergency brake system of roller.Belong to technical field of engineering machinery.
Background technology
In engineering machinery field, the drg of the emergency brake system of roller all adopts shoe brake and external contracting drum brake at present, and this brake braking force increases too quickly, and the braking ride comfort is relatively poor, and friction coefficient has reduction slightly, and then lock torque sharply descends.Therefore the automatically regulating gap is difficult, and maintenance, repair work are also relatively more difficult.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, and a kind of emergency brake system of roller of the stability that can improve brake system greatly is provided.
The purpose of this utility model is achieved in that a kind of emergency brake system of roller, it is characterized in that described brake system comprises that air compressor, combine valve, air receiver, brake activation valve, gas push away oily assistor and normally closed caliper disk brake, the compressed air outlet of described air compressor links to each other with the combine valve import, the combine valve outlet links to each other with the air receiver import, the air receiver outlet links to each other with the brake activation valve admission port, the brake activation valve air extractor duct pushes away oily assistor with gas and links to each other, and gas pushes away oily assistor and links to each other with normally closed caliper disk brake.
Compare with existing emergency brake system, the utlity model has following characteristics:
1, system adopts normally closed caliper disk brake, and general nothing friction helps gesture effect, brake efficiency to be subjected to the influence of friction coefficient less, thereby system effectiveness is more stable.
2, the usefulness reduction of immersion back is less, need only can recover normal through twice braking.
3, under the identical situation of output lock torque, size and fair less.
4, brake disc is minimum along the thermal expansion amount of thickness direction, can not make the obvious increase of brake clearance and cause braking distance excessive as the het expansion of brake wheel.
5, be easier to realize automatic play compensation, system maintenance, repair work are fairly simple.
6, this system need not provide continual and steady high-voltage oil liquid by the hydraulic efficiency pressure system of pump+energy-storing device, and system cost is lower.
In sum, the utility model can improve the stability of brake system greatly, can adapt under various working and the weather condition and use.
Description of drawings
Fig. 1 is the emergency brake system schematic diagram of the utility model roller.
Among the figure: air compressor 1, combine valve 2, air receiver 3, brake activation valve 4, gas push away oily assistor 5, normally closed caliper disk brake 6.
The specific embodiment
Referring to Fig. 1, the emergency brake system of the roller that the utility model relates to mainly pushes away oily assistor 5 by air compressor 1, combine valve 2, air receiver 3, brake activation valve 4, gas and normally closed caliper disk brake 6 is formed.The compressed air outlet of described air compressor 1 links to each other with combine valve 2 imports, combine valve 2 outlets link to each other with air receiver 3 imports, air receiver 3 outlets link to each other with brake activation valve 4 admission ports, and brake activation valve 4 air extractor ducts push away oily assistor 5 with gas and link to each other, and gas pushes away oily assistor 5 and links to each other with normally closed caliper disk brake 6.
Principle of work:
Whole emergency brake system drives air compressor 1 by driving engine, the air that air compressor produces enters air receiver 3 through combine valve 2, the air of air receiver enters gas by brake activation valve 4 and pushes away oily assistor 5, and the high pressure oil that gas pushes away oily assistor generation enters normally closed caliper disk brake 6.Thereby realize removing braking during standstill.According in the time of the needs braking during standstill, brake activation valve 4 cuts off and discharges the pressure air that gas pushes away oily assistor 5, the spring reset pressurization friction lining in the drg, and the automatic locking of normally closed plate disc brake, thus realize braking during standstill.
Claims (1)
1. the emergency brake system of a roller, it is characterized in that described brake system comprises air compressor (1), combine valve (2), air receiver (3), brake activation valve (4), gas pushes away oily assistor (5) and normally closed caliper disk brake (6), the compressed air outlet of described air compressor (1) links to each other with combine valve (2) import, combine valve (2) outlet links to each other with air receiver (3) import, air receiver (3) outlet links to each other with brake activation valve (4) admission port, brake activation valve (4) air extractor duct pushes away oily assistor (5) with gas and links to each other, and gas pushes away oily assistor (5) and links to each other with normally closed caliper disk brake (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200321962U CN201193024Y (en) | 2008-03-19 | 2008-03-19 | Road roller parking brake system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200321962U CN201193024Y (en) | 2008-03-19 | 2008-03-19 | Road roller parking brake system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201193024Y true CN201193024Y (en) | 2009-02-11 |
Family
ID=40392567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200321962U Expired - Fee Related CN201193024Y (en) | 2008-03-19 | 2008-03-19 | Road roller parking brake system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201193024Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103661320A (en) * | 2013-12-05 | 2014-03-26 | 柳工无锡路面机械有限公司 | Three-level interlocking brake system of pneumatic tyre roller |
| CN107351831A (en) * | 2017-07-11 | 2017-11-17 | 广西柳工机械股份有限公司 | Loading machine EPB |
| CN108545073A (en) * | 2018-05-18 | 2018-09-18 | 柳工无锡路面机械有限公司 | A kind of emergency braking system and braking method of rubber-tyred roller |
-
2008
- 2008-03-19 CN CNU2008200321962U patent/CN201193024Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103661320A (en) * | 2013-12-05 | 2014-03-26 | 柳工无锡路面机械有限公司 | Three-level interlocking brake system of pneumatic tyre roller |
| CN103661320B (en) * | 2013-12-05 | 2015-12-30 | 柳工无锡路面机械有限公司 | A kind of three grades of interlocking brake system of pneumatic tyred roller |
| CN107351831A (en) * | 2017-07-11 | 2017-11-17 | 广西柳工机械股份有限公司 | Loading machine EPB |
| CN108545073A (en) * | 2018-05-18 | 2018-09-18 | 柳工无锡路面机械有限公司 | A kind of emergency braking system and braking method of rubber-tyred roller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: LIUGONG WUXI ROAD MACHINERY CO., LTD. Free format text: FORMER NAME: LIUGONG HIGHWAY MACHINERY CO LTD, JIANGYIN CITY |
|
| CP03 | Change of name, title or address |
Address after: 214444 Jiangsu Jiangyin Lingang New Town machinery equipment Industrial Park Patentee after: Liugong Wuxi Road Surface Machinery Co., Ltd. Address before: 214431 No. 267 West Ring Road, Jiangsu, Jiangyin Patentee before: Jiangyin Liugong Road Machinery Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090211 Termination date: 20130319 |