CN202338400U - Automobile and gas exhaust brake valve for automobile - Google Patents
Automobile and gas exhaust brake valve for automobile Download PDFInfo
- Publication number
- CN202338400U CN202338400U CN 201120491416 CN201120491416U CN202338400U CN 202338400 U CN202338400 U CN 202338400U CN 201120491416 CN201120491416 CN 201120491416 CN 201120491416 U CN201120491416 U CN 201120491416U CN 202338400 U CN202338400 U CN 202338400U
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- cylinder
- valve
- plunger case
- exhaust braking
- acting cylinder
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Abstract
The utility model discloses an automobile and a gas exhaust brake valve for the automobile. The gas exhaust brake valve comprises a valve body, a cylinder and a rocker arm, wherein the cylinder consists of a plunger cylinder and a single-action cylinder; the plunger cylinder can directly transmit a thrust to a piston of the single-action cylinder; and a push rod of the single-action cylinder extends out of a cylinder shell and is hinged with the rocker arm. The gas exhaust brake valve has the advantages of small appearance geometric size, convenience in mounting, low maintenance cost and the like.
Description
Technical field
The utility model is a kind of auxiliary brake of vehicle, particularly relates to a kind of novel exhaust brake valve that is used for motor car engine.
Background technique
The motor car engine braking system is one of important device of present vehicle safety travel.When vehicle need slow down particularly in the mountain area or city bus when needing frequent braking; If frequently use service brake; Will cause wheel drag overheated and make braking function decline; Like untimely taking emergency measures (cooling of stopping), even can cause braking total failure and the vehicle condition of causing danger.So adopt nothing decline property auxiliary braking system to be very important to this situation.Use complemental brake system can strengthen the vehicle braked performance; Need not use or use less break (traditional friction brake) just can vehicle be controlled in certain safe speed scope; The prevention car brakeing is malfunctioning; Guarantee traffic safety, particularly strengthen the Security of heavy-duty vehicle lower long slope.Use retarder can reduce the frequency of utilization of main Service Brake (friction brake) significantly simultaneously; Thereby reduce the wearing and tearing of foundation brakes braking hub and friction plate, improve its working life, prolong the service cycle of foundation brakes simultaneously; Reduce maintenance cost; Improve the Security and the travelling comfort of driving, reduce driver's fatigue, increase work efficiency.
In the auxiliary brake device for automobile that uses at present, exhaust brake is simple in structure because of it, reliable performance, and operation is easy for installation easily, and it also got widely as a kind of complemental brake system and used.The single-acting cylinder of exhaust braking valve of the prior art and plunger case adopt and divide body structure; All be parts independently, plunger case is positioned at the output terminal of single-acting cylinder, and plunger case and rocking arm are hinged; Cause manufacturing and maintenance cost too high; Change inconvenience, the physical dimension of brake valve is excessive, problems such as difficult installation.
201120077377.9 number Chinese utility model patent is used for the constant pressure type exhaust butterfly valve of generator auxiliary braking, it has a plunger case assembly and a single-acting cylinder, the two connection, and plunger case assembly and rocking arm are hinged.The plunger case assembly of this exhaust butterfly valve is two separate parts that separate with single-acting cylinder, links together.Because plunger case separates with single-acting cylinder, long term exposure includes piston and constant force spring outside in the plunger case.Like this, constant force spring and piston corrosion and aging easily in the plunger case.And, in the scheme of this model utility, with rocking arm hinged be the plunger case assembly, assembly assembling more complicated, the bad control of stroke, the easy like this valve block that causes can't be closed or close too early, just can't satisfy the constant voltage function.
The model utility content
The purpose of the utility model provides a kind of novel exhaust brake valve that is used for motor car engine, has little, easy for installation, the advantages such as maintenance cost is low, long service life of profile physical dimension.
A kind of exhaust braking valve that is used for motor car engine; Comprise valve body, cylinder and rocking arm; Cylinder is made up of plunger case and single-acting cylinder, and plunger case connects single-acting cylinder, and plunger case can be directly passed to the single-acting cylinder piston with thrust; The push rod of single-acting cylinder stretches out outside the said cylinder shell, and is connected with rocking arm.
Preferably, said cylinder is made up of the structure of one plunger case and single-acting cylinder.
Preferably, plunger case comprises one-way valve, and the suction port of said cylinder is communicated with one-way valve, and suction port is positioned on the said cylinder end away from push rod.
Preferably, said cylinder is fixed on the supporting plate, and supporting plate and valve body have the structure of one.
Preferably, the push rod of described single-acting cylinder and clevis one end are fixed, and the other end and the rocking arm of clevis are hinged.
Preferably, the cylinder shell that makes the utility model is through Quenching Treatment.
Preferably, in said Quenching Treatment, comprise it is heated to about 200 degrees centigrade step in vacuum furnace.
Preferably, after above-mentioned steps, workpiece is taken out from stove, insert density of carbon dioxide gas and be higher than in the atmosphere more than 90%.
Preferably, put into vacuum furnace once more after in said atmosphere, reaching about 97 degrees centigrade, be heated to about 500 degrees centigrade, from stove, take out the back and in containing the normal temperature liquid of 1% above heavy metal, is dipped into natural temperature.
Experiment showed, the part through above-mentioned processing or above-mentioned processing, cylinder strength nearly improves 7 percent to ten, nearly improves 9 percent to 13 fatigue life, and noise reduces about 8 percent to nine in the load facility.
Preferably; During exhaust brake, thereby when the exhaust gas pressure of motor discharge opened valve block above certain threshold value, single-acting cylinder piston and plunger case piston were drawn back; Single-acting cylinder return spring and plunger case return spring change amount of deformation, play the constant voltage effect; When exhaust brake was removed, single-acting cylinder piston and plunger case piston be return under the elastic force effect of single-acting cylinder return spring and plunger case return spring respectively.
Preferably, cylinder also comprises limit structure, is used to limit the stroke of plunger case piston.
Preferably, said limit structure is a flange.
The beneficial effect of the utility model:
Outlet valve does not receive the influence of cylinder force when closing: exhaust brake is when work; The air pressure that be unable to do without cylinder of closing of valve block promotes piston; Novel outlet valve back piston has two springs, the pressure when can constant cylinder closing, and valve block all is that flexibility is closed.And the exhaust valve closure on the market all is the effects of air pressure that receives car load, when air pressure is big it just to close power just big, often energetically close outlet valve, just easy premature damage.
Reduce the strength of dunnage: the work of outlet valve is closed and is opened through being everlasting exactly, and the outlet valve on the market has most of damage to be because the dunnage fracture now.
Because the plunger case assembly is arranged in the single-acting cylinder, piston and constant force spring in the plunger case have corrosion protection and anti-aging function.
Owing to replaced plunger case assembly and rocking arm hinged with single-acting cylinder, so the assembly assembling is simplified, Stroke Control also is easy to realize, has avoided valve block to close or to close too early, has satisfied the constant voltage function better.
The utility model also has characteristics such as brake rigging efficiency height, reliable transmission, no dead point, sensitivity height.
The utility model also relates to the automobile that has adopted according to the exhaust braking valve of the utility model.
Description of drawings
Fig. 1 representes the profile outline according to a preferred embodiment of the exhaust braking valve of the utility model;
Fig. 2 representes the cylinder sectional drawing according to the exhaust braking valve of the utility model.
Embodiment
As illustrated in fig. 1 and 2, the output terminal push rod 8 of cylinder 2 connects clevis 3 rotating hinged Rocker arm 4 one ends; the other end of Rocker arm 4 is fixedly connected with rotating shaft 5 in clevis 3; rotating shaft 5 runs through valve body 6 and valve block 7, and valve block 7 can rotate in valve body 6 around rotating shaft 5, and rotating shaft 5 is with respect to disalignment one segment distance of valve block 7; supporting plate 1 has integrative-structure with valve body 6; perhaps supporting plate 1 is fixed on the valve body 6, and cylinder 2 is fixed on the supporting plate 1, and rotating shaft 5 deviates from the prolongation straight line of the output terminal push rod 8 of cylinder 2.
Single-acting cylinder comprises push rod 8; Single-acting cylinder piston 10 and single-acting cylinder return spring 9; Plunger case return spring 12 1 ends act on the single-acting cylinder piston 10; The other end acts on the spring pressuring plate of plunger case, and spring pressuring plate is resisted against single-acting cylinder piston 10 or omits spring pressuring plate, acts on (accompanying drawing is not shown) on the plunger case piston 13.Single-acting cylinder piston 10 has groove, is used to dodge the motion of plunger case push rod 11.
Effect is another kind of preferred, push rod 8 directly and Rocker arm 4 hinged.
Preferred as another kind, plunger case can omit plunger case push rod 11, and at this moment, the single-acting cylinder piston can not need groove.And at this moment, can comprise above-mentioned situation, can certainly comprise the above-mentioned situation that does not have spring pressuring plate with spring pressuring plate.
Preferred as another, plunger case also can not comprise one-way valve.
Preferred as another, cylinder 2 comprises a limit structure, on the inwall circumference of cylinder 2, has flange 17, is used to limit the stroke of plunger case piston 13.This limit structure has following advantage: (1) valve block 7 does not receive the influence of cylinder force when closing: exhaust brake is when work, and suction port 16 air pressure that be unable to do without cylinder 2 of closing of valve block 7 promote plunger case piston 13, when plunger case piston 13 moves to flange; The plunger case position of piston can not be moved on by flange 17 restriction again, preferably these flange 17 positions can corresponding valve block closed position just in time; The air pressure size of suction port is closed not influence to the outlet valve valve block like this; Valve block just can bear constant power like this, and the pressure when constant cylinder is closed, valve block all are that flexibility is closed; And exhaust valve closure of the prior art all is the effects of air pressure that receives car load; When air pressure is big it just to close power just big, often energetically close outlet valve, just easy premature damage.(2) strength of minimizing dunnage: the work of valve block 7 is closed and is opened through being everlasting exactly, and it is because the dunnage fracture that the outlet valve of existing technology has most of the damage.
Working principle: when normal driving, cylinder body suction port 16 does not have air inlet, and valve block 7 is opened, and engine exhaust normally discharges, and exhaust brake is work not; When needing exhaust brake, make 16 air inlets of cylinder body suction port, air pressure promotes one-way valve 15 and check valve spring 14, and plunger case piston 13 moves forward, promotes plunger case push rod 11 and plunger case return spring 12 and moves forward.Go ahead when plunger case push rod 11 promotes single-acting cylinder piston 10 again, promote push rod 8, the air pressure of cylinder ante-chamber is discharged in the atmosphere with push rod 8 places.At this moment, cylinder 2 is through push rod 8 output movements, and push rod 8 promotes clevis 3, makes Rocker arm 45 motions around the shaft, and rotating shaft 5 drives valve block 7 and closes, and engine exhaust is obstructed, and exhaust brake is started working; When the exhaust gas pressure of motor discharge has surpassed certain threshold value, because rotating shaft 5 is offset from the center line of valve block 7, the stressed difference in the both sides of valve block 7; When reaching certain threshold value; The pressure difference of both sides is opened valve block 7, and valve block 7 passes to thrust on Rocker arm 4, the push rod 8 from rotating shaft 5, and the thrust of single-acting cylinder piston 10 opposing plunger case return springs 12 is retreated; Valve block 7 was opened and was discharged the pressure waste gas that exceeds certain threshold value this moment; When the waste gas of motor was lower than the cylinder preset threshold, valve block 7 can be closed under the effect of plunger case return spring 12 automatically, and exhaust brake is keep-uped pressure; Behind the brake off, close suction port 16 air pressure, plunger case piston 13 receives spring force toward moved back with single-acting cylinder piston 10, and this moment, the air pressure of cylinder was discharged from check valve spring 14, one-way valve 15 and suction port 16.Brake valve restPoses.
The just exemplary preferred embodiment of the utility model described herein; And the preferred embodiment of the utility model that used concrete term description; But this description only is used for the example purpose, those skilled in the art should be noted that the utility model disclosed only be example, and be to be understood that; Can make various changes and variation, and not break away from the protection domain of the utility model claim.
The exhaust braking valve of the utility model has comprised each technological scheme that the combination in any of each part mentioned above constitutes, and as space is limited, inconvenience is here given an example one by one.
Those skilled in the art are understood that; The utility model is improvements over the prior art; Its each component part is also comprising a large amount of existing technologies, yet, these existing technologies are combined and the technological scheme of formation the utility model; The creative work of this inventor's of condensing hardships comprises big quantity research and experiment.
Claims (14)
1. exhaust braking valve that is used for automobile; Comprise valve body, cylinder and rocking arm; It is characterized in that: cylinder is made up of plunger case and single-acting cylinder, and plunger case connects single-acting cylinder, and plunger case can be directly passed to the single-acting cylinder piston with thrust; The push rod of single-acting cylinder stretches out outside the said cylinder shell, and is connected with rocking arm is rotatable.
2. exhaust braking valve as claimed in claim 1 is characterized in that: said cylinder is made up of the structure of one plunger case and single-acting cylinder.
3. according to claim 1 or claim 2 exhaust braking valve, it is characterized in that: plunger case comprises one-way valve, and the suction port of said cylinder is communicated with one-way valve, and suction port is positioned on the said cylinder end away from push rod.
4. according to claim 1 or claim 2 exhaust braking valve, it is characterized in that: the push rod of described single-acting cylinder and clevis one end are fixed, and the other end and the rocking arm of clevis are hinged.
5. exhaust braking valve as claimed in claim 3; It is characterized in that: the push rod and the rotatable ways of connecting of rocking arm of replacing said single-acting cylinder with following mode; The push rod of described single-acting cylinder and clevis one end are fixed, and the other end and the rocking arm of clevis are hinged.
6. like claim 1,2 or 5 described exhaust braking valves, it is characterized in that: said cylinder is fixed on the supporting plate, and supporting plate and valve body have the structure of one.
7. exhaust braking valve as claimed in claim 3 is characterized in that: said cylinder is fixed on the supporting plate, and supporting plate and valve body have the structure of one.
8. exhaust braking valve as claimed in claim 4 is characterized in that: said cylinder is fixed on the supporting plate, and supporting plate and valve body have the structure of one.
9. exhaust braking valve as claimed in claim 1; It is characterized in that: during exhaust brake; Thereby when the exhaust gas pressure of motor discharge opens valve block above certain threshold value; Single-acting cylinder piston and plunger case piston are drawn back, and single-acting cylinder return spring and plunger case return spring change amount of deformation, play the constant voltage effect; When exhaust brake was removed, single-acting cylinder piston and plunger case piston be return under the elastic force effect of single-acting cylinder return spring and plunger case return spring respectively.
10. like claim 1 or 9 described exhaust braking valves, it is characterized in that: cylinder also comprises limit structure, is used to limit the stroke of plunger case piston.
11. exhaust braking valve as claimed in claim 3 is characterized in that: cylinder also comprises limit structure, is used to limit the stroke of plunger case piston.
12. exhaust braking valve as claimed in claim 10 is characterized in that: said limit structure is a flange.
13. exhaust braking valve as claimed in claim 11 is characterized in that: said limit structure is a flange.
14. vehicle has exhaust braking valve, it is characterized in that: said exhaust braking valve is the described exhaust braking valve of above-mentioned arbitrary claim.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120491416 CN202338400U (en) | 2011-12-01 | 2011-12-01 | Automobile and gas exhaust brake valve for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120491416 CN202338400U (en) | 2011-12-01 | 2011-12-01 | Automobile and gas exhaust brake valve for automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202338400U true CN202338400U (en) | 2012-07-18 |
Family
ID=46487092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120491416 Expired - Fee Related CN202338400U (en) | 2011-12-01 | 2011-12-01 | Automobile and gas exhaust brake valve for automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202338400U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102493878A (en) * | 2011-12-01 | 2012-06-13 | 瑞立集团瑞安汽车零部件有限公司 | Exhausting brake valve for automobile and automobile |
| CN104806345A (en) * | 2015-04-10 | 2015-07-29 | 中国第一汽车股份有限公司无锡油泵油嘴研究所 | Electric gas dispensing device of engine |
-
2011
- 2011-12-01 CN CN 201120491416 patent/CN202338400U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102493878A (en) * | 2011-12-01 | 2012-06-13 | 瑞立集团瑞安汽车零部件有限公司 | Exhausting brake valve for automobile and automobile |
| WO2013078785A1 (en) * | 2011-12-01 | 2013-06-06 | 瑞立集团瑞安汽车零部件有限公司 | Exhaust brake valve for automobile and automobile |
| CN102493878B (en) * | 2011-12-01 | 2014-09-10 | 瑞立集团瑞安汽车零部件有限公司 | Exhausting brake valve for automobile and automobile |
| CN104806345A (en) * | 2015-04-10 | 2015-07-29 | 中国第一汽车股份有限公司无锡油泵油嘴研究所 | Electric gas dispensing device of engine |
| CN104806345B (en) * | 2015-04-10 | 2017-08-04 | 中国第一汽车股份有限公司无锡油泵油嘴研究所 | A kind of electric engine gas distribution device |
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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: 20120718 Termination date: 20151201 |
|
| EXPY | Termination of patent right or utility model |