CN202806369U - Downhill deceleration system of truck - Google Patents
Downhill deceleration system of truck Download PDFInfo
- Publication number
- CN202806369U CN202806369U CN 201220448363 CN201220448363U CN202806369U CN 202806369 U CN202806369 U CN 202806369U CN 201220448363 CN201220448363 CN 201220448363 CN 201220448363 U CN201220448363 U CN 201220448363U CN 202806369 U CN202806369 U CN 202806369U
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- air compressor
- valve
- internally piloted
- piloted valve
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Abstract
The utility model discloses a downhill deceleration system of a truck. A wheel is connected with an air compressor through a gear transmission mechanism; an outlet of the air compressor is communicated with an inlet of a pressure release device; an outlet of the pressure release device is communicated with a three-way piece; the other two ports of the three-way piece are respectively communicated with an inlet of the air compressor and a second internally piloted valve; the other end of the second internally piloted valve is communicated with a vehicle compressed air storage tank or atmosphere; and a cooling device and an internally piloted valve control device are also arranged. Therefore, a way that the pressure release device consumes vehicle kinetic energy to decelerate is adopted, and the cooling device is arranged, superheat cannot generate when the truck speeds down for a long time, the phenomena of brake failure and tire ignition caused by friction overheat for a long time are avoided when the truck speeds down on a downhill by using a brake pad, and the safety of driving the truck is ensured to a certain extent.
Description
Technical field
The utility model relates to a kind of automobile deceleration system, and especially a kind of running car needs the long-time slow system of slowing down when the descending road.
Background technology
All face a problem during lorry descending, the speed of a motor vehicle when how to control descending.The weight of lorry is larger, and the speed of a motor vehicle is more wayward during descending, if depend merely on the brake regulation speed, because braking time is long, can make brake disc overheated, and the dangerous situations such as tire catches fire, brake failure occur easily.Mostly be furnished with energy brake on the high capacity waggon, although alleviated to a certain extent problem, effect is very not desirable.
The utility model content
The technical problems to be solved in the utility model provides a kind of lorry downhill retardation system, and it has the characteristics such as safe, reliable of using.
For solving the problems of the technologies described above, technical solution adopted in the utility model is: wheel is connected with air compressor by gear drive, the outlet of air compressor is communicated with the pressure purger entrance, the outlet of pressure purger is communicated with T-pipe joint, two other interface of T-pipe joint is communicated with entrance and second internally piloted valve of air compressor respectively, the other end of the second internally piloted valve is communicated with compressed air units in cars storage tank or atmosphere, also is provided with cooling mechanism and internally piloted valve control setup.
The utility model further improves and is: cooling mechanism comprises the first internally piloted valve and the 3rd internally piloted valve, and the first internally piloted valve one end is communicated between the entrance of the outlet of pressure purger and air compressor, and the other end is communicated with atmosphere; The 3rd internally piloted valve one end is communicated between the entrance of the outlet of air compressor and pressure purger, and the other end is communicated with atmosphere; Cooling mechanism can also for: between the outlet of air compressor and pressure purger entrance, coolant storage tank is set; Air compressor is W type air compressor, and the semiaxis that is connected with wheel nave is connected with W type air compressor by gear drive; Internally piloted valve is electromagnetic valve, and the internally piloted valve control setup is control circuit; Pressure purger is the back pressure valve of one or more series connection; When pressure purger is the back pressure valve of a plurality of series connection, between pressure purger front end and back pressure valve, be provided with the 4th electromagnetic valve; It also comprises check valve, and the entrance of check valve is communicated with the second internally piloted valve, and its outlet is communicated with T-pipe joint.
The beneficial effect that adopts technique scheme to produce is: this deceleration system has two kinds of mode of operations, native system is straight-through low resistive state when being not used in deceleration, and communicate with atmosphere, the difference of pressure of air compressor admission port and air extractor duct is little, therefore minimum to the kinetic energy loss of automobile, simultaneously because air sucks compressor by the first electromagnetic valve by atmosphere, discharge by the 3rd electromagnetic valve again, the heat that compressor produces is discharged system, or adopt the mode that coolant storage tank is set to make the brake system cooling, the system that the solved too high problem that heats up; Native system is closed state when being used for slowing down, and because gas circuit is passed through pressure purger, the difference of pressure of air compressor admission port and air extractor duct is larger, air compressing chance loss automobile kinetic energy, play deceleration effort, owing to adopt the back pressure valve of a plurality of series connection, and each back pressure valve wherein is connected with high pressure side gas circuit before the pressure purger by electromagnetic valve respectively, therefore can be according to carload lot and gradient flexible in size adjustment decompression degree, make automobile keep the speed of a motor vehicle of safety, when having avoided descending apply the brakes sheet to slow down, because of overheated brake failure and the tire Ignition Phenomena of causing of long-time friction, ensured to a certain extent the safety of driving.
Description of drawings
Fig. 1 is structural representation of the present utility model.
In the accompanying drawings: 1, the first internally piloted valve; 2, the second internally piloted valve; 3, the 3rd internally piloted valve; 4, back pressure valve; 5, T-pipe joint; 6, the 4th electromagnetic valve; 7, check valve; 8, air compressor; 9, semiaxis; 10, wheel.
The specific embodiment
By embodiment shown in Figure 1 as can be known, wheel 10 is connected with air compressor 8 by gear drive, the outlet of air compressor 8 is communicated with the pressure purger entrance, the outlet of pressure purger is communicated with T-pipe joint 5, two other interface of T-pipe joint 5 is communicated with entrance and second internally piloted valve 2 of air compressor 8 respectively, the other end of the second internally piloted valve 2 is communicated with compressed air units in cars storage tank or atmosphere, also is provided with cooling mechanism and internally piloted valve control setup; Cooling mechanism comprises that the first internally piloted valve 1 and the 3rd internally piloted valve 3, the first internally piloted valves 1 one ends are communicated between the entrance of the outlet of pressure purger and air compressor 8, and the other end is communicated with atmosphere; The 3rd internally piloted valve 3 one ends are communicated between the entrance of the outlet of air compressor 8 and pressure purger, and the other end is communicated with atmosphere; Air compressor 8 is W type air compressor, and the semiaxis 9 that is connected with wheel nave is connected with W type air compressor 8 by gear drive; Internally piloted valve is electromagnetic valve, and the internally piloted valve control setup is control circuit; Pressure purger is the back pressure valve 4 of one or more series connection; When pressure purger is the back pressure valve 4 of a plurality of series connection, between pressure purger front end and back pressure valve 4, be provided with the 4th electromagnetic valve 6; It also comprises check valve 7, and the entrance of check valve 7 is communicated with the second internally piloted valve 2, and its outlet is communicated with T-pipe joint 5.
Lorry downhill retardation system can also arrange coolant storage tank it is lowered the temperature between the outlet of air compressor and pressure purger entrance.
Pressure purger can also be comprised of single-stage or multi-level throttle orifice plate or reducing valve, and this deceleration system can also be installed in respectively on the left and right wheels wheel hub, so that car deceleration is even; Internally piloted valve can also adopt pneumatic valve or hydraulic operated valve.
Principle of work:
Connect air compressor through semiaxis during running car, air compressor turns round thereupon.When being not used in deceleration, in this deceleration system: the second closed electromagnetic valve, blocking-up gas enters deceleration system, and the first electromagnetic valve and the 3rd electromagnetic valve are opened, and this deceleration system is communicated with atmosphere, air sucks compressor by the first electromagnetic valve by atmosphere, discharge by the 3rd electromagnetic valve again, the heat that compressor produces is discharged system, at this moment, whole deceleration system is that low-resistance is communicated with, and communicates with atmosphere.Therefore, air compressor admission port and air extractor duct almost do not have pressure reduction, and be minimum to the kinetic energy loss of automobile; When being used for slowing down, in this deceleration system: the first electromagnetic valve and the 3rd closed electromagnetic valve, make deceleration system be in closed state, the second electromagnetic valve is opened, pressurized air in atmosphere or the compressed air units in cars storage tank enters the admission port of air compressor through check valve and T-pipe joint, high pressure air after the compression is entered the admission port of air compressor again through back pressure valve by the air extractor duct of air compressor, in this deceleration system, circulate, in operation process, to overcome the resistance of back pressure valve because of compressor, need to consume automobile kinetic energy, thereby play the effect that makes car deceleration.
Claims (8)
1. lorry downhill retardation system, it is characterized in that: wheel (10) is connected with air compressor (8) by gear drive, the outlet of air compressor (8) is communicated with the pressure purger entrance, the outlet of described pressure purger is communicated with T-pipe joint (5), two other interface of described T-pipe joint (5) is communicated with entrance and second internally piloted valve (2) of air compressor (8) respectively, the other end of described the second internally piloted valve (2) is communicated with compressed air units in cars storage tank or atmosphere, also is provided with cooling mechanism and internally piloted valve control setup.
2. a kind of lorry downhill retardation according to claim 1 system, it is characterized in that described cooling mechanism comprises the first internally piloted valve (1) and the 3rd internally piloted valve (3), described the first internally piloted valve (1) one end is communicated between the entrance of the outlet of pressure purger and air compressor (8), and the other end is communicated with atmosphere; Described the 3rd internally piloted valve (3) one ends are communicated between the entrance of the outlet of air compressor (8) and pressure purger, and the other end is communicated with atmosphere.
3. a kind of lorry downhill retardation according to claim 1 system is characterized in that described cooling mechanism is: between the outlet of air compressor (8) and pressure purger entrance coolant storage tank is set.
4. a kind of lorry downhill retardation according to claim 1 system is characterized in that described air compressor (8) is W type air compressor, and the semiaxis that is connected with wheel nave (9) is connected with W type air compressor (8) by gear drive.
5. a kind of lorry downhill retardation according to claim 1 and 2 system is characterized in that described internally piloted valve is electromagnetic valve, and described internally piloted valve control setup is control circuit.
6. a kind of lorry downhill retardation according to claim 1 system is characterized in that described pressure purger is the back pressure valve (4) of one or more series connection.
7. a kind of lorry downhill retardation according to claim 6 system is characterized in that being provided with the 4th electromagnetic valve (6) between pressure purger front end and back pressure valve (4) when pressure purger is the back pressure valve (4) of a plurality of series connection.
8. a kind of lorry downhill retardation according to claim 7 system is characterized in that it also comprises check valve (7), and the entrance of described check valve (7) is communicated with the second internally piloted valve (2), and its outlet is communicated with T-pipe joint (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220448363 CN202806369U (en) | 2012-09-05 | 2012-09-05 | Downhill deceleration system of truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220448363 CN202806369U (en) | 2012-09-05 | 2012-09-05 | Downhill deceleration system of truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202806369U true CN202806369U (en) | 2013-03-20 |
Family
ID=47865301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220448363 Expired - Fee Related CN202806369U (en) | 2012-09-05 | 2012-09-05 | Downhill deceleration system of truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202806369U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114454853A (en) * | 2022-01-18 | 2022-05-10 | 东风汽车股份有限公司 | Automobile brake cooling control device and control method |
-
2012
- 2012-09-05 CN CN 201220448363 patent/CN202806369U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114454853A (en) * | 2022-01-18 | 2022-05-10 | 东风汽车股份有限公司 | Automobile brake cooling control device and control method |
| CN114454853B (en) * | 2022-01-18 | 2023-03-21 | 东风汽车股份有限公司 | Automobile brake cooling control device and control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130320 Termination date: 20130905 |