CN202703564U - Brake system of pneumatic tire roller - Google Patents
Brake system of pneumatic tire roller Download PDFInfo
- Publication number
- CN202703564U CN202703564U CN 201220391676 CN201220391676U CN202703564U CN 202703564 U CN202703564 U CN 202703564U CN 201220391676 CN201220391676 CN 201220391676 CN 201220391676 U CN201220391676 U CN 201220391676U CN 202703564 U CN202703564 U CN 202703564U
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- brake
- valve
- assistor
- way connection
- pneumatic tire
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Abstract
Provided is a brake system of a pneumatic tire roller. An air pimp of an engine is connected with a safe unloading valve, an air storage cylinder is connected with the safe unloading valve, a left brake valve, a right brake valve and a hand brake valve are respectively connected with the air storage cylinder, a left assistor and a right assistor are respectively connected with the left brake valve and the right brake valve, and a four-way connection and a left bypass flow block are respectively connected with the left assistor through a left three-way connection. The four-way connection and a right bypass flow block are respectively connected with the right assistor through a right three-way connection, and a front wheel brake is connected with the four-way connection, and a rear wheel brake is connected with the left bypass block and the right bypass block. The structure is adopted so that the brake system of the pneumatic tire roller is simple in structure, simple and convenient to operate, low in cost, and capable of preventing safe hazard of a whole pneumatic tire roller when brake performance of the rear wheel brake of an existing traditional pneumatic roller is reduced, promoting brake performance of the pneumatic tire roller, ensuring normal brake of the other brake control loop when one brake control loop does not work, and improving reliability of brake.
Description
Technical field
The utility model relates to a kind of brake system of Road Compaction equipment, especially the pneumatic tyred roller brake system.
Background technology
Pneumatic tyred roller is mainly used in the compacting of the surface layers such as bittulith, also is applicable to the compacting of capital construction basis, roadbed, rubble, is to build an airport and the indispensable compacting machinary of express highway.Present pneumatic tyred roller is the trailing wheel braking, and its front-wheel brakeless, its braking model is divided into hydraulic braking and two kinds of forms of gas cap liquid type braking.The advantage of hydraulic braking is that deceleration and stopping performance is good, operation is comfortable, reliability is high, and shortcoming is that cost is high.The gas cap liquid type braking is present widely used braking model, its principle of work is that the pressure with working gas amplifies by assistor, low-pressure gas pressure is changed into the high pressure brake fluid pressure, and high hydraulic brake fluid enters and realizes the roller braking in the interior drg of pneumatic tyred roller trailing wheel.The advantage of gas cap liquid type braking is that cost is low, operate more comfortable, but the pneumatic tyred roller of existing employing gas cap liquid type braking model is when mountain construction, owing to need to frequently brake in the ramp, can reduce gradually the deceleration and stopping performance of trailing wheel inner brake after working long hours, affect the reliability of brake system, bring hidden danger for the pneumatic tyred roller traffic safety; In addition, also there is the low shortcoming of braking reliability in existing gas cap liquid type brake system, and namely when one bar brake circuit lost efficacy, other brake circuit also lost efficacy thereupon.
Summary of the invention
The purpose of this utility model provides a kind of pneumatic tyred roller brake system, and this system architecture is simple, easy and simple to handle, with low cost, can realize that front-wheel and trailing wheel brake simultaneously, can promote the deceleration and stopping performance of pneumatic tyred roller, can promote again its braking reliability.
The purpose of this utility model is achieved in that the driving engine air pump connects safety unloading valve, air receiver is connected with safety unloading valve, left brake activation valve, right brake activation valve are connected with air receiver respectively with hand brake valve, left assistor, right assistor are connected with left brake activation valve, right brake activation valve respectively, four-way connection, left shunt piece are connected with left assistor by left T-pipe joint respectively, four-way connection, right branching block are connected with right assistor by right T-pipe joint respectively, front-wheel brake is connected with four-way connection, rear wheel brake respectively with the left shunt piece be connected branching block and be connected.
Because the utility model adopts said structure, this system architecture is simple, easy and simple to handle, with low cost, potential safety hazard appearred in the pneumatic tyred roller complete machine when rear wheel brake deceleration and stopping performance that has prevented present traditional roller reduced, promoted the deceleration and stopping performance of pneumatic tyred roller, guaranteed when brake servo circuit lost efficacy, another brake servo circuit still can normal brake application, has improved the reliability of braking.
Description of drawings
Fig. 1 is the constructional drawing of the utility model embodiment.
1 front-wheel, 2 front-wheel brakes, 3 four-way connections, 4 driving engine air pumps, 5 safety unloading valves, 6 air receivers, 7 left brake activation valves, 8 hand brake valves, 9 right brake activation valves, 10 left assistors, 11 left T-pipe joints, 12 left shunt pieces, 13 right assistors, 14 right T-pipe joints, 15 right branching blocks, 16 trailing wheels, 17 rear wheeies brake among the figure.
The specific embodiment
Embodiment: safety unloading valve 5 is connected with driving engine air pump 4 by pipeline, the admission port of air receiver 6 is connected with safety unloading valve 5 by pipeline, left brake activation valve 7, right brake activation valve 9 is connected with three air extractor ducts of air receiver 6 by pipeline respectively with hand brake valve 8, left assistor 10, right assistor 13 is respectively by pipeline and left brake activation valve 7, two air extractor ducts of right brake activation valve 9 connect, left T-pipe joint 11 is connected with left assistor 10 delivery ports, left T-pipe joint 11 is the left input port by pipeline and four-way connection 3 respectively again, left shunt piece 12 connects, right T-pipe joint 14 is connected with right assistor 13, right T-pipe joint 14 is the right input port by pipeline and four-way connection 3 respectively again, right branching block 15 connects, two front-wheel brakes 2 are connected with two delivery ports of four-way connection 3, the left side is connected with two delivery ports of left shunt piece 12 by pipeline with right mediolateral rear wheel brake 17 again, the right side also is connected with two delivery ports of right branching block 15 by pipeline with the rear wheel brake 17 of left side, two front-wheel brakes 2 are installed in the front-wheel 1, and four rear wheeies brake 17 are installed in the trailing wheel 16.
Behind the engine starting, 4 beginnings of driving engine air pump constantly provide pressure gas, after the oil separation effect and decompression Unloading Effect of gas through safety unloading valve 5, output to air receiver 6 along pipeline.Air receiver 6 is used for stored-gas, to prevent providing pneumatic tyred roller to brake needed gas when sudden engine quits work.Air receiver 6 outputs to left brake activation valve 7, right brake activation valve 9 and hand brake valve 8 with gas by pipeline again, and hand brake valve 8 is used for the braking during standstill of pneumatic tyred roller, and chaufeur is stepped on the service brake that left brake activation valve 7 or right brake activation valve 9 all can be realized pneumatic tyred roller.The below describes system as example to step on 7 brakings of left brake activation valve, this moment, gas outputed to respectively left assistor 10 by two air extractor ducts of left brake activation valve 7, right assistor 13, gas is by the pressure amplification effect of assistor, gaseous tension is transformed brake fluid pressure, the high hydraulic brake fluid of left assistor 10 outputs flows to the left input port of four-way connection 3 along pipeline through left T-pipe joint 11, left shunt piece 12, the high hydraulic brake fluid of right assistor 13 outputs flows to the right input port of four-way connection 3 along pipeline through right T-pipe joint 14, right branching block 15, high hydraulic brake fluid enters respectively two front-wheel brakes 2 through two delivery ports of four-way connection 3 again, realize front-wheel 1 braking, left shunt piece 12 flows into high hydraulic brake fluid in four rear wheeies brake 17 by two delivery port respectively with right branching block 15, realizes trailing wheel 16 brakings.
During brake system work, can realize that front-wheel 1 and trailing wheel 16 brake simultaneously, prevented that potential safety hazard appears in pneumatic tyred roller when rear wheel brake 17 deceleration and stopping performancies reduce, also promoted the deceleration and stopping performance of pneumatic tyred roller, realize synchronous braking for reaching front-wheel 1 with trailing wheel 16, the lock torque of front-wheel brake 2 is little than rear wheel brake 17.Front-wheel brake 2 can be shoe brake with rear wheel brake 17, also can be caliper disk brake.This brake system changes original single-pipeline gas cap liquid form into dual circuit gas cap liquid form, has guaranteed when a partial failure, and another loop still can normal brake application, has improved the reliability of braking.
Claims (1)
1. pneumatic tyred roller brake system, the driving engine air pump connects safety unloading valve, air receiver is connected with safety unloading valve, left brake activation valve, right brake activation valve is connected with air receiver respectively with hand brake valve, it is characterized in that: left assistor, right assistor respectively with left brake activation valve, right brake activation valve connects, four-way connection, the left shunt piece is connected with left assistor by left T-pipe joint respectively, four-way connection, right branching block is connected with right assistor by right T-pipe joint respectively, front-wheel brake is connected with four-way connection, rear wheel brake respectively with the left shunt piece be connected branching block and be connected.
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Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220391676 CN202703564U (en) | 2012-08-09 | 2012-08-09 | Brake system of pneumatic tire roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220391676 CN202703564U (en) | 2012-08-09 | 2012-08-09 | Brake system of pneumatic tire roller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202703564U true CN202703564U (en) | 2013-01-30 |
Family
ID=47583893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220391676 Expired - Lifetime CN202703564U (en) | 2012-08-09 | 2012-08-09 | Brake system of pneumatic tire roller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202703564U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113232635A (en) * | 2021-06-03 | 2021-08-10 | 北京汽车集团越野车有限公司 | Gas-cap-liquid braking system, gas-cap-liquid braking method and vehicle |
-
2012
- 2012-08-09 CN CN 201220391676 patent/CN202703564U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113232635A (en) * | 2021-06-03 | 2021-08-10 | 北京汽车集团越野车有限公司 | Gas-cap-liquid braking system, gas-cap-liquid braking method and vehicle |
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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 |
Granted publication date: 20130130 |
|
| CX01 | Expiry of patent term |