CN206187001U - Loader relay valve thrust boosting pump inner loop air brake system - Google Patents
Loader relay valve thrust boosting pump inner loop air brake system Download PDFInfo
- Publication number
- CN206187001U CN206187001U CN201621196416.6U CN201621196416U CN206187001U CN 206187001 U CN206187001 U CN 206187001U CN 201621196416 U CN201621196416 U CN 201621196416U CN 206187001 U CN206187001 U CN 206187001U
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- China
- Prior art keywords
- relay valve
- air
- booster pump
- valve
- boosting pump
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- Expired - Fee Related
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- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The utility model discloses a loader relay valve thrust boosting pump inner loop air brake system belongs to engineering machine tool field. It includes air compressor machine, oil water separator, gas holder, air brake valve, relay valve A, thrust boosting pump A and front driving bridge braking pincers A, the air compressor machine passes through oil water separator and connects at the gas holder, be connected with air brake valve and relay valve A on the gas holder, relay valve A control mouth passes through to detect the route of the pneumatic control gas holder of air brake valve department to thrust boosting pump A, relay valve A connects thrust boosting pump A, thrust boosting pump A connects front driving bridge braking pincers A. The utility model provides a problem that became invalid of the filth of thrust boosting pump in because of the atmosphere, reduce the thrust boosting pump fault rate, improve the response speed that thrust boosting pump braking and braking were relieved, increase the braking reliability, method simple and practical, reduce customer's use cost and cost of maintenance.
Description
Technical field
The utility model belongs to a kind of Construction Machinery System, specifically, more particularly to a kind of reinforcing of loading machine relay valve
Pump interior circulation air braking system.
Background technology
Reduction of speed or stopping and the temporary parking on level land or ramp when brakes is travelled for loading machine, loading machine
Operating mode is more severe, frequently advances in operation process, retreats or stops, and is required for braking to coordinate and realizes.Due to braking
The performance of system is directly connected to the life security of driver and the normal work of whole machine, therefore the reliability braked is with safety just
Seem and be even more important.Country's loading machine is typically using the brakes that gas-liquid is comprehensive, the gas of compressor output, through profit at present
After separator treatment, it is stored in air accumulator, booster pump and piston movement is controlled by brake valve, realizes compressed air and braking
Energy conversion between liquid, then caliper is promoted by high-voltage oil liquid and implements to brake.Booster pump is used as the liquid of gas cap system energy
, often there is the failures such as gas leakage, oil leak when in use in the core parts of conversion.Analyzing its reason, to be primarily due to loading machine frequent
It is operated in the complexity rugged environment such as dust, muddy water, grit, impurity, moisture in air etc. can be by spring cavity and air
Connected entrance enter in booster pump cylinder, moisture causes the corrosion inside booster pump, and the dirt such as corrosion and silt causes reinforcing
Pumping chamber's bad seals, cause the faults frequents such as gas leakage to occur.Booster pump producer of the country is all to install to breathe in spring cavity at present
Device, prevents the pollutant in air from entering booster pump air cavity by improving the filtering accuracy of respirator.But according to loading machine
From the point of view of actual condition, improving filtering accuracy can only delay the time of booster pump inside build up of dirt, it is impossible to fundamentally solve to add
Excessively dirty problem inside power pump.And when filtering accuracy is too high, there is the risk that influence throughput, dust block breath device,
So as to cause booster pump to fail.
Utility model content
The utility model purpose is to provide a kind of loading machine relay valve booster pump interior circulation air braking system, existing to overcome
In technology often there is the defect of the failures such as gas leakage, oil leak in booster pump when in use.
The utility model is realized using following technical scheme：A kind of loading machine relay valve booster pump interior circulation gas braking
System, including air compressor machine, oil water separator, air accumulator, air brake valve, relay valve A, booster pump A and front and rear drive axle caliper
A, the air compressor machine is connected to air accumulator by oil water separator, and air brake valve and relay valve A, institute are connected with the air accumulator
State relay valve A control mouths and control air accumulator to the path of booster pump A, the relay valve A by detecting the air pressure at air brake valve
Connection booster pump A, drive axle caliper A before and after the booster pump A connections.
Also include relay valve B, the booster pump B and front and rear drive axle caliper B that are connected in parallel with relay valve A, the gas storage
Air brake valve and relay valve B, the relay valve B are connected with tank and control air accumulator by detecting the air pressure signal at air brake valve
To the path of booster pump B, the relay valve A connection booster pumps B, drive axle caliper B before and after the booster pump B connections.
Connection safety valve on the air accumulator.
Compared with prior art, the beneficial effects of the utility model are：
The utility model solves the problems, such as that booster pump, because of the dirt failure in air, reduces booster pump fault rate, improves
Booster pump braking and the response speed of brake release, increase braking reliability, method simple practical, the use cost of reduction client
And maintenance cost.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
In figure：1st, air compressor machine；2nd, oil water separator；3rd, air accumulator；4th, safety valve；5th, air brake valve；6th, relay valve A；7、
Relay valve B；8th, booster pump A；9th, booster pump B；10th, front and rear drive axle caliper A；11st, front and rear drive axle caliper B.
Specific embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings.
Embodiment 1：
As shown in figure 1, a kind of loading machine relay valve booster pump interior circulation air braking system, including air compressor machine 1, water-oil separating
Device 2, air accumulator 3, air brake valve 5, relay valve A6, booster pump A8 and front and rear drive axle caliper A10, the air compressor machine 1 pass through
Oil water separator 2 connects air accumulator 3, and air brake valve 5 and relay valve A6, the relay valve A6 controls are connected on the air accumulator 3
Mouth controls air accumulator 3 to the path of booster pump A8, the relay valve A6 to connect booster pump by detecting the air pressure at air brake valve 5
A8, drive axle caliper A10 before and after the booster pump A8 connections.
Embodiment 2：
As shown in figure 1, a kind of loading machine relay valve booster pump interior circulation air braking system, including air compressor machine 1, water-oil separating
Device 2, air accumulator 3, safety valve 4, air brake valve 5, relay valve A6 and relay valve B7, booster pump A8 and booster pump B9, front and rear driving
Bridge caliper A10 and front and rear drive axle caliper B11.The air compressor machine 1 connects air accumulator 3, air compressor machine by oil water separator 2
1 provides compressed air for brakes, and by being stored in air accumulator 3 after oil water separator 2, air accumulator 3 is installed safety valve 4 and kept away
Exempt from pressure inside the tank too high, protection system safety.Be connected with the air accumulator 3 air brake valve 5, relay valve A6 and with relay valve A6
Relay valve B7, the relay valve A6 and relay valve B7 control mouths in parallel controls gas storage by detecting the air pressure at air brake valve 5
Tank 3 arrives the path of booster pump A8, and the relay valve A6 and relay valve B7 connects booster pump A8 and booster pump B9, the reinforcing respectively
Pump A8 and booster pump B9 connect front and rear drive axle caliper A10 and front and rear drive axle caliper B11 respectively.
Loading machine steps on the pedal of air brake valve 5 when brake operating is driven a vehicle, and gas pressure is in relay valve A6 and relay valve
B7 control mouths, air accumulator 3 arrives the path of booster pump A8 and booster pump B9 in opening relay valve A6 and relay valve B7, by pressure air
The cylinder chamber of booster pump A8 and booster pump B9 is delivered to, after booster pump A8 and booster pump B9 is pressurized, high-pressure brake liquid is made
For front and rear drive axle caliper A10 and the brake piston of front and rear drive axle caliper B11, to realize braking；At the same time,
During cylinder spring-compressed, the gas of spring cavity passes through the exhaust outlet of relay valve A6 and relay valve B7, is discharged in air.
Loading machine unclamps the pedal of air brake valve 5 in brake release, and the cylinder piston of booster pump A8 and booster pump B9 exists
Resetted under spring-force driven dual, gas of the cylinder without spring side adds to spring cavity by pipeline, unnecessary gas passes through servo
The exhaust outlet of valve A6 and relay valve B7 is discharged in air.The use of relay valve A6 and relay valve B7, shortens pressure in air accumulator 3
Air also accelerates exhaust velocity during brake release to booster pump A8 and the transmission time of booster pump B9, that is, improve braking
Response speed, increase braking reliability.
Claims (3)
1. a kind of loading machine relay valve booster pump interior circulation air braking system, it is characterised in that：Including air compressor machine (1), profit point
From device (2), air accumulator (3), air brake valve (5), relay valve A (6), booster pump A (8) and front and rear drive axle caliper A (10), institute
State air compressor machine (1) by oil water separator (2) connect air accumulator (3), on the air accumulator (3) connect air brake valve (5) and after
Dynamic valve A (6), relay valve A (6) control mouths control air accumulator (3) to booster pump by detecting the air pressure at air brake valve (5) place
The path of A (8), the relay valve A (6) connects booster pump A (8), drive axle caliper A before and after booster pump A (8) connection
(10)。
2. loading machine relay valve booster pump interior circulation air braking system according to claim 1, it is characterised in that：Also include
The relay valve B (7), the booster pump B (9) that are connected in parallel with relay valve A (6) and front and rear drive axle caliper B (11), the air accumulator
(3) air brake valve (5) and relay valve B (7) are connected with, the relay valve B (7) is by detecting the air pressure at air brake valve (5) place
Signal controls air accumulator (3) to the path of booster pump B (9), and the relay valve A (6) connects booster pump B (9), the booster pump B
(9) drive axle caliper B (11) before and after connecting.
3. loading machine relay valve booster pump interior circulation air braking system according to claim 1 and 2, it is characterised in that：Institute
State connection safety valve (4) on air accumulator (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621196416.6U CN206187001U (en) | 2016-10-27 | 2016-10-27 | Loader relay valve thrust boosting pump inner loop air brake system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621196416.6U CN206187001U (en) | 2016-10-27 | 2016-10-27 | Loader relay valve thrust boosting pump inner loop air brake system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206187001U true CN206187001U (en) | 2017-05-24 |
Family
ID=58735232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621196416.6U Expired - Fee Related CN206187001U (en) | 2016-10-27 | 2016-10-27 | Loader relay valve thrust boosting pump inner loop air brake system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206187001U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110843761A (en) * | 2019-11-29 | 2020-02-28 | 江苏徐工工程机械研究院有限公司 | Loader power system, control method thereof and loader |
-
2016
- 2016-10-27 CN CN201621196416.6U patent/CN206187001U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110843761A (en) * | 2019-11-29 | 2020-02-28 | 江苏徐工工程机械研究院有限公司 | Loader power system, control method thereof and loader |
| CN110843761B (en) * | 2019-11-29 | 2024-02-02 | 江苏徐工工程机械研究院有限公司 | Loader power system, control method thereof and loader |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170524 Termination date: 20201027 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |