CN202574196U - Double-pedal brake system for wheel loader - Google Patents
Double-pedal brake system for wheel loader Download PDFInfo
- Publication number
- CN202574196U CN202574196U CN 201220193474 CN201220193474U CN202574196U CN 202574196 U CN202574196 U CN 202574196U CN 201220193474 CN201220193474 CN 201220193474 CN 201220193474 U CN201220193474 U CN 201220193474U CN 202574196 U CN202574196 U CN 202574196U
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- valve
- brake
- booster pump
- mouth
- pedal
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- Expired - Fee Related
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Abstract
The utility model provides a double-pedal brake system for a wheel loader, which comprises an air compressor, wherein the air compressor is connected with an unloading valve and a gas reservoir in series. The utility model is characterized in that the gas reservoir is provided with three output ends which are respectively connected with a right foot brake valve, a hand control brake valve and a left foot brake valve; the output end of the right foot brake valve is connected with a shuttle valve; the output end of the hand control brake valve is respectively connected with a brake gas chamber and a double-action cut-off cylinder; the left foot brake valve is provided with two output ends which are respectively connected with the shuttle valve and the double-action cut-off cylinder; the output end of the shuttle valve is connected with a front axle booster pump and a rear axle booster pump; and the front axle booster pump and the rear axle booster pump are respectively connected with a front axle brake and a rear axle brake. The double-pedal brake system provided by the utility model uses the two matched pedals, thereby enhancing the operating efficiency of the loader, lowering the energy consumption, solving the risk of coasting of the single-pedal-driven cut-off loader in the downslope process, and enhancing the safety performance of the brake system.
Description
Technical field
The utility model relates to a kind of two pedal brake system that is used on the wheel type loader.
Background technology
Brake system relates to the important system of loader complete machine safety, directly influences the work efficiency of complete machine, also is related to the safety of the person and machine simultaneously.
Most in the market loaders all adopt single brake pedal system and non-drive to cut off function; As shown in Figure 1, comprise air compressor 1, air compressor 1 series connection unloader valve 2 and air receiver 3 backs connect brake pedal 8; Brake pedal 8 also connects back axle booster pump 10 and propons booster pump 9; Back axle booster pump 10 and propons booster pump 9 connect back axle drg 12 and propons drg 11 respectively, between brake pedal 8 and propons booster pump 9, are connected with stop lamp switch 7, between brake pedal 8 and air receiver 3, are connected with air-pressure gauge 6; Air receiver 3 also connects hand braking valve 4, and hand braking valve 4 connects compressed air brake cylinder 5.After adopting said system, loader change speed gear box power when inserting material, lifting operation can not cut off, comparatively power consumption.
Summary of the invention
The purpose of the utility model provides a kind of brake system on the wheel type loader that is used for that improves safety factor.
In order to achieve the above object; The technical scheme of the utility model has provided a kind of wheel type loader two pedal brake system, comprises air compressor, air compressor series connection unloader valve and air receiver; It is characterized in that: the mouth of air receiver is divided into three the tunnel; Link to each other with right crus of diaphragm brake activation valve, hand braking valve and left foot brake activation valve respectively, the mouth of right crus of diaphragm brake activation valve connects shuttle valve, and the mouth of hand braking valve connects compressed air brake cylinder respectively and cylinder is cut off in double acting; The mouth of left foot brake activation valve is divided into two-way; Connect shuttle valve and double acting respectively and cut off cylinder, the mouth of shuttle valve connects propons booster pump and back axle booster pump, and propons booster pump and back axle booster pump connect propons drg and back axle drg respectively.
Preferably, on the pipeline between said left foot brake activation valve and the said shuttle valve, be connected with stop lamp switch.
Preferably, on the mouth of said air receiver, be connected with air-pressure gauge.
A kind of two pedal brake system that the utility model provides is used through two pedals; Civilian dress carries machine operation efficient and improves; Energy consumption reduces, and has solved the danger on slide slope when the single pedal drive is cut off the loader descending simultaneously again, has improved the safety performance of brake system.
Description of drawings
Fig. 1 is not with change speed gear box power cut function brake system figure for original single pedal;
The scheme drawing of a kind of wheel type loader two pedal brake system that Fig. 2 provides for the utility model.
The specific embodiment
For making the utility model more obviously understandable, now with a preferred embodiment, and conjunction with figs. elaborates as follows.
As shown in Figure 2; A kind of wheel type loader two pedal brake system for the utility model provides comprises air compressor 1, air compressor 1 series connection unloader valve 2 and air receiver 3; The mouth of air receiver 3 is divided into three the tunnel; Link to each other with right crus of diaphragm brake activation valve 13, hand braking valve 4 and left foot brake activation valve 14 respectively, the mouth of right crus of diaphragm brake activation valve 13 connects shuttle valve 15, and the mouth of hand braking valve 4 connects compressed air brake cylinder 5 respectively and cylinder 16 is cut off in double acting; The mouth of left foot brake activation valve 14 is divided into two-way; Connect shuttle valve 15 and double acting respectively and cut off cylinder 16, the mouth of shuttle valve 15 connects propons booster pump 9 and back axle booster pump 10, and propons booster pump 9 and back axle booster pump 10 connect propons drg 11 and back axle drg 12 respectively.On the pipeline between left foot brake activation valve 14 and the shuttle valve 15, be connected with stop lamp switch 7.On the mouth of air receiver 3, be connected with air-pressure gauge 6.
The working process of the utility model is: air compressor 1 is passed to air receiver 3 with pressure gas through unloader valve 2; During the moved arm lifting discharge operation, the driver steps on left brake pedal 14, and pressure gas one road shuttle valve 15 of flowing through arrives propons booster pump 9 and back axle booster pump 10 respectively; And then propons drg 11 and the 12 enforcement brakings of back axle drg; Another road pressure gas arrives and cuts off double acting cut-out cylinder 7 with the change speed gear box power cut, improves the rotating speed of hydraulic work system pump, accelerates the swing arm hoisting speed; Reduce the complete machine energy consumption, improved operating efficiency.And the braking of 13 control of right crus of diaphragm brake activation valve loader rim brake, the conversion that two foot valves are realized between the gas circuit through shuttle valve 15.
Claims (3)
1. wheel type loader two pedal brake system; Comprise air compressor (1); Air compressor (1) series connection unloader valve (2) and air receiver (3), it is characterized in that: the mouth of air receiver (3) is divided into three the tunnel, links to each other with right crus of diaphragm brake activation valve (13), hand braking valve (4) and left foot brake activation valve (14) respectively; The mouth of right crus of diaphragm brake activation valve (13) connects shuttle valve (15); The mouth of hand braking valve (4) connects compressed air brake cylinder (5) respectively and cylinder (16) is cut off in double acting, and the mouth of left foot brake activation valve (14) is divided into two-way, connects shuttle valve (15) and double acting respectively and cuts off cylinder (16); The mouth of shuttle valve (15) connects propons booster pump (9) and back axle booster pump (10), and propons booster pump (9) and back axle booster pump (10) connect propons drg (11) and back axle drg (12) respectively.
2. a kind of wheel type loader two pedal brake system as claimed in claim 1 is characterized in that: on the pipeline between said left foot brake activation valve (14) and the said shuttle valve (15), be connected with stop lamp switch (7).
3. a kind of wheel type loader two pedal brake system as claimed in claim 1 is characterized in that: on the mouth of said air receiver (3), be connected with air-pressure gauge (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220193474 CN202574196U (en) | 2012-04-22 | 2012-04-22 | Double-pedal brake system for wheel loader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220193474 CN202574196U (en) | 2012-04-22 | 2012-04-22 | Double-pedal brake system for wheel loader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202574196U true CN202574196U (en) | 2012-12-05 |
Family
ID=47243640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220193474 Expired - Fee Related CN202574196U (en) | 2012-04-22 | 2012-04-22 | Double-pedal brake system for wheel loader |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202574196U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104760582A (en) * | 2015-04-08 | 2015-07-08 | 宾阳县利高机械厂 | Brake system of steering wheel tractor |
| CN104442752B (en) * | 2014-12-22 | 2017-04-26 | 江苏柳工机械有限公司 | Braking power cut-off control system of walking machine |
| CN107472226A (en) * | 2017-08-10 | 2017-12-15 | 徐州徐工矿山机械有限公司 | A kind of quarry tipper air-operated hydraulic brake system |
| CN108313039A (en) * | 2018-02-09 | 2018-07-24 | 山东临工工程机械有限公司 | Side-dump loader power cut braking system |
| CN110239502A (en) * | 2019-05-31 | 2019-09-17 | 广西柳工机械股份有限公司 | Engineering truck braking system |
-
2012
- 2012-04-22 CN CN 201220193474 patent/CN202574196U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104442752B (en) * | 2014-12-22 | 2017-04-26 | 江苏柳工机械有限公司 | Braking power cut-off control system of walking machine |
| CN104760582A (en) * | 2015-04-08 | 2015-07-08 | 宾阳县利高机械厂 | Brake system of steering wheel tractor |
| CN107472226A (en) * | 2017-08-10 | 2017-12-15 | 徐州徐工矿山机械有限公司 | A kind of quarry tipper air-operated hydraulic brake system |
| CN108313039A (en) * | 2018-02-09 | 2018-07-24 | 山东临工工程机械有限公司 | Side-dump loader power cut braking system |
| CN108313039B (en) * | 2018-02-09 | 2023-11-21 | 山东临工工程机械有限公司 | Power cut-off braking system for side dump loader |
| CN110239502A (en) * | 2019-05-31 | 2019-09-17 | 广西柳工机械股份有限公司 | Engineering truck braking system |
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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: 20121205 Termination date: 20150422 |
|
| EXPY | Termination of patent right or utility model |