CN202574170U - Automobile braking device - Google Patents
Automobile braking device Download PDFInfo
- Publication number
- CN202574170U CN202574170U CN 201220183531 CN201220183531U CN202574170U CN 202574170 U CN202574170 U CN 202574170U CN 201220183531 CN201220183531 CN 201220183531 CN 201220183531 U CN201220183531 U CN 201220183531U CN 202574170 U CN202574170 U CN 202574170U
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- Prior art keywords
- plunger pump
- oil
- valve
- braking
- gear
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Abstract
The utility model discloses an automobile braking device, which is used for solving the technical problem of braking of a running vehicle by using hydraulic damping force through gear engagement. The device comprises a hydraulic oil storing tank, an oil conveying pipe and an oil return pipe, wherein a driving gear which rotates coaxially with an automobile wheel hub is fixed on the inner side of the automobile wheel hub; the driving gear is connected with a plunger pump braking device which is fixed on an axle through a driven gear which is engaged with the driving gear; and the plunger pump braking device is connected with the hydraulic oil storing tank through the oil conveying pipe and the oil return pipe respectively. An automobile is braked by adopting a structure combining gear engagement with a plunger pump, so that mechanical energy generated by braking can be transformed into heat energy by heating hydraulic oil, and heat energy in the hydraulic oil is released into the atmospheric air through a radiator. The structure is safe and reliable, and the defect of poor braking effect caused by excessively high temperature of a brake block due to friction during braking of drum and disk type braking structures is overcome.
Description
Technical field
The utility model relates to a kind of brake device for car, particularly a kind of brake structure that is made up of plunger pump.
Background technology
Mostly brake device for car is drum brakes and disk type brake in the prior art.
1) drum brakes is will be installed on brake facing in the brake hubs toward extrapolation by hydraulic pressure, and brake facing and inside face along with the brake hubs of wheel are rubbed, and the generation braking effect.
2) disk type brake is with static brake disc, clamp along with the brake disc of tyre rotation to produce friction force, the brake gear that the speed that turns a wheel reduces.
Above-mentioned brake gear is by producing friction between brake facing and wheel hub or the disc; And the kinetic energy during with running car is transformed into thermal energy consumption and falls in the process of friction; The shortcoming of its existence is when friction between brake facing and wheel hub or disc when excessive, makes the brake facing temperature too high and cause the braking effect variation easily.
Summary of the invention
The purpose of the utility model provides a kind of brake device for car, and the technical matters that solve is to utilize hydraulic damping power through the gear mesh mode driving vehicle to be braked.
The technical scheme that the utility model adopts is:
The brake device for car of the utility model; Comprise hydraulic pressure petrol storage tank, the transport pipe and the oil return pipe that are communicated with the hydraulic pressure petrol storage tank; Be fixedly connected with the driving gear of a rotation coaxial with it in the inboard of automotive wheel wheel hub; Driving gear is through linking to each other with the plunger pump brake gear that is fixed on the vehicle bridge with its ingear driven gear, and the plunger pump brake gear links to each other with the hydraulic pressure petrol storage tank with oil return pipe through transport pipe respectively.
Said plunger pump brake gear comprises that plunger pump, quantitative control pump, oil circuit guide valve assembly and braking electromagnetic valve constitute; The rotating shaft of plunger pump is fixedly linked with described driven gear is coaxial; The control end of quantitative control pump is electrically connected with first touch switch of service brake plate control, and the adjusting connecting rod on it is regulated parts with the plunger pump output variable and linked to each other;
Said oil circuit guide valve assembly is made up of two two-bit triplet electromagnetic valves; Be respectively first valve and second valve; The entrance point of first valve links to each other with the oil inlet of plunger pump, and the first via exit end on it links to each other with transport pipe, and the second way outlet end links to each other with the input end of described braking electromagnetic valve; The entrance point of second valve links to each other with the oil outlet of plunger pump, and the Third Road exit end on it links to each other with transport pipe, and the 4th way outlet end links to each other with the input end of described braking electromagnetic valve;
The control end of said oil circuit guide valve assembly is electrically connected with the 3rd touch switch of reversing automobile retaining control;
The control end of braking electromagnetic valve is electrically connected with second touch switch of service brake plate control, and its mouth links to each other with oil return pipe.
Between said braking electromagnetic valve input and output side, go back and be connected with to replace in short-term and open closed flow solenoid valve by control circuit control.
Said plunger pump is axial plunger pump or radial plunger pump.
On the oil return line between braking electromagnetic valve mouth to the petrol storage tank, be provided with oil strainer and oil radiator successively.
Said oil radiator is fan-cooled radiator or water-cooling type radiator.
Said driving gear and driven gear are spur wheel.
The diameter of said driving gear is greater than the diameter of driven gear.
Compared with prior art; The utility model is owing to adopt gear mesh and plunger pump structure combining to come automobile is braked; When need not be to automobile brake; Through the output of quantitative control pump governing plunger pump, make the plunger pump brake gear be in readiness for action, both noenergy consumption did not have mechanical loss yet.On the contrary,, make plunger pump get into mode of operation, through braking electromagnetic valve oil return flow in the oil return pipe is controlled again and reached braking effect when the needs glancing impact.This structure can heat up the mechanical energy that braking produces and be converted into heat energy through hydraulic oil, through radiator the heat energy in the hydraulic oil is released in the atmosphere.This structural safety is reliable, can not produce drum-type and disk type brake structure when brake, because of the excessive too high shortcoming that causes the braking effect variation of brake facing temperature that causes that rubs.
Description of drawings
Fig. 1 is the structural representation of the utility model.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is done further to specify.
As shown in Figure 1, the brake device for car of the utility model comprises meshed transmission gear parts, plunger pump brake gear 1, hydraulic pressure petrol storage tank 2, transport pipe 21, oil return pipe 22, return filter 3 and oil return radiator 4.
Said meshed transmission gear parts are to be made up of two spur wheels; Be respectively driving gear 5 and driven gear 6; Driving gear 5 diameters are greater than driven gear 6, external toothing therebetween, and driving gear 5 is fixed on the inboard of automotive wheel 100 wheel hubs 101 and rotates in the same way with the rotation of wheel 100.Driven gear 6 is connected with plunger pump brake gear 1 on being fixedly installed on vehicle bridge 200.
Said plunger pump brake gear 1 comprises that plunger pump 11, quantitative control pump, oil circuit guide valve assembly and braking electromagnetic valve 7 constitute, and said plunger pump 11 can be an axial plunger pump, also can be radial plunger pump.
The rotating shaft of plunger pump 11 and described driven gear 6 coaxial being fixedly linked; When driving gear 5 drives driven gear 6 rotations; Driven gear 6 drives plunger pumps 11 rotating shafts and rotates, if during axial plunger pump, then when the swash plate of this pump is open mode; Be that its leaning angle (angle between swash plate axis and the plunger case axis) is when non-vanishing; Along with the rotation of plunger pump 11 rotating shafts, plunger will move reciprocatingly in plunger case regularly, and plunger pump 11 is shown as regularly successively in cylinder oil suction and to the action of cylinder external pressure oil; When said swash plate was closed condition, when promptly its leaning angle was zero, plunger was quiescence in plunger case; Plunger pump 11 is not worked, and does not promptly have oil suction, presses the oil motion, that is to say; In the transport pipe of periphery 21 and oil return pipe 22, not having hydraulic oil to flow (for radial plunger pump, is exactly when the eccentric throw of its rotor is non-vanishing, along with the rotation of plunger pump 11 rotating shafts; Radial plunger will move reciprocatingly in plunger case regularly; Plunger pump 11 is shown as regularly successively in cylinder oil suction and to the action of cylinder external pressure oil, when described eccentric throw was zero, plunger pump 11 was not worked).
Said quantitative control pump is made up of the hydraulic cylinder of Hydraulic Pump and control thereof; The swash plate of the connecting rod of hydraulic cylinder and plunger pump 11 is (when being meant plunger pump 11 for axial plunger pump; Below roughly the same) or plunger pump 11 adjustment stator eccentric throws (when being meant plunger pump 11 for radial plunger pump; Plunger below roughly the same) (described swash plate and the plunger of adjustment stator eccentric throw are claimed the quantitative control parts of plunger pump again) links to each other, and the control end of Hydraulic Pump is electrically connected with first touch switch that automobile service brake plate is controlled.
Swash plate angle of inclination or plunger pump 11 stator eccentric throws through governing plunger pump 11 can make plunger pump 11 be in work or readiness for action.
When stepping on the service brake plate and open first touch switch; Control circuit is promptly opened the swash plate of plunger pump 11 through the quantitative control pump; Perhaps plunger pump 11 stators are departed from the rotating shaft center, plunger pump 11 is started working, at this moment; Oil return as if the oil that plunger pump 11 is extruded is not smooth, bring resistance then can for the normal rotation of plunger pump 11 rotating shafts.
Said oil circuit guide valve assembly is made up of two two-bit triplet electromagnetic valves; Be respectively first valve 14 and second valve 15; First valve, 14 entrance points link to each other with the oil inlet 12 of plunger pump 11; First via exit end on it links to each other with transport pipe 21, and the second way outlet end links to each other with the input end of described braking electromagnetic valve 7; Second valve, 15 entrance points link to each other with the oil outlet 13 of plunger pump 11, and the Third Road exit end on it links to each other with transport pipe 21, and the 4th way outlet end links to each other with the input end of described braking electromagnetic valve 7.
When automobile moved ahead, the 4th way outlet valve 152 of the first via outlet valve 141 of first valve 14 and second valve 15 was a normally open, and the second way outlet valve 142 of first valve 14 and the Third Road outlet valve 151 of second valve 15 then are closed condition.If step on the service brake plate and open first touch switch this moment; The quantitative control parts of governing plunger pump; Plunger pump 11 is started working; The hydraulic oil track route that gets into plunger pump 11 through transport pipe 21 is following: the hydraulic oil of input is flowed through by the first via exit end of first valve 14 in first via outlet valve 141, the oil inlet 12 entering plunger pumps 11 of first valve, 14 entrance points by plunger pump; Flow out through the oil outlet of plunger pump 11 13 again, flow into oil return pipes 22 through the 4th way outlet valve 152, the 4th way outlet end through braking electromagnetic valve 7 by second valve, 15 entrance points.
When automobile is hung reversing; The 3rd touch switch by the control of reversing automobile retaining is opened; Automotive control circuit instructs the first via outlet valve 141 of first valve 14 and the 4th way outlet valve 152 of second valve 15 to close, and the Third Road outlet valve 151 of the second way outlet valve 142 of first valve 14 and second valve 15 is opened.At this moment; Open first touch switch if step on the service brake plate; The quantitative control parts of governing plunger pump, plunger pump 11 is started working, at this moment; Plunger pump rotating shaft counter-rotating; The hydraulic oil track route that gets into plunger pumps 11 through transport pipe 21 is following: the hydraulic oil of input is got in the plunger pump 11 by the oil outlet of plunger pump by flow through Third Road outlet valve 151, second valve, 15 entrance points of the Third Road exit end of second valve 15, and the oil inlet 12 through plunger pump 11 flows out again, flows into oil return pipes 22 through the second way outlet valve 142, the second way outlet end through braking electromagnetic valve 7 by first valve, 14 entrance points.
The input end of said braking electromagnetic valve 7 is connected to second way outlet end of first valve 14 and the 4th way outlet end of second valve; No matter just be that automobile moves ahead or moves backward; The hydraulic oil that flows out from plunger pump 11 is all in the control that receives braking electromagnetic valve 7; When braking electromagnetic valve 7 is open mode, the smooth and easy hydraulic oil reservoir fuel tank 2 that is back to of hydraulic oil; When braking electromagnetic valve 7 is controlled when reducing the passage bore, the hydraulic oil backflow obstruction, the resistance that causes the plunger in the plunger pump 11 in pressing oily process, to receive increases; Simultaneously; Plunger pump 11 rotating shaft rotative speeds also slow down, and thus, force wheel 100 to underspeed through driven gear 6 biographies, driving gear 5.
The control end of braking electromagnetic valve 7 is electrically connected with second touch switch of service brake plate control, that is to say, steps on the service brake plate; Open first touch switch earlier, plunger pump 11 is started working, make hydraulic oil in oil circuit, begin to flow; Continue to step on the service brake plate, open second touch switch, make braking electromagnetic valve 7 controlled and through reducing the backflow of hydraulic oil; Increase and press oily resistance in the plunger case, force the speed of a motor vehicle to reduce, reach the braking purpose with this.
At the automobile normal running state; In order to reduce driven gear 6 and the resistance of plunger pump 11 as far as possible through 5 pairs of automobiles generations of driving gear; Can be through the lubricating system of plunger pump 11 rotating shafts and the diameter proportion of driving gear 5 and driven gear 6 are carried out appropriate design, so that said resistance is minimum.
When carrying out glancing impact to the automobile in going; The utility model is to reduce plunger pump 11 oil return flows through forced action type; Increase oil pressure in the plunger cylinder; Promptly contain the speed of driven gear 6, reduce the rotative speed of driving gear 5 thus, then automobile is produced brake action through the pressure oil resistance that increases plunger; The mechanical energy that i.e. braking produces is converted into thermal energy storage in hydraulic oil through the intensification of hydraulic oil, and this heat energy distributes a part of heat energy in atmosphere through oil return pipe 22, hydraulic oil reservoir fuel tank 2.The unlatching closure of the braking electromagnetic valve 7 of the utility model is controlled by automobile service brake plate; When the slow glancing impact of needs; Gently step on automobile service brake plate; Then control circuit instruction braking electromagnetic valve 7 is closed gradually, and the oil return flow in the oil return pipe 22 then reduces gradually, and the oil pressure in the plunger case of the oily process of plunger pump 11 pressures then increases gradually; Anxious in a flash when needs, heavily step on automobile foot brake plate, then control circuit instruction braking electromagnetic valve 7 quick closedowns, the oil return in the oil return pipe 22 stop to flow and cause that oil pressure increases suddenly in the oil pressure plunger cylinder in the plunger pump 11, thus traveling automobile are produced emergency braking.
The further improvement of the utility model is: under the situation of emergency braking, for fear of wheel 100 locking phenomenons occurring, between said braking electromagnetic valve 7 input ends and mouth parallelly connected be provided with to replace in short-term open closed flow solenoid valve 8; When the tachogenerator that is arranged on wheel 100 parts; When detecting wheel 100 locking situation, control circuit instructs flow solenoid valve 8 to start working at once, when flow solenoid valve 8 conductings; Hydraulic oil flows in the oil return pipe 22; Oil pressure in the oil pressure plunger cylinder in the plunger pump 11 reduces, and driven gear 6 is obstructed and reduces, and wheel 100 locking situation are able to alleviate.
The another improvement of the utility model: hydraulic oil is in the process that circulates or in braking procedure; Can convert a part of mechanical energy into heat energy; The hydraulic fluid temperature of backflow is raise; For making the hydraulic oil that gets in the transport pipe 21 return to normal temperature, can on the oil return pipe before the hydraulic oil reservoir fuel tank 2 22, set up air cooling type or water-cooling type radiator 4, so that the hydraulic fluid temperature in these radiator 4 backflow hydraulic oil petrol storage tanks 2 is reduced to the temperature of setting.
In use; Some come from mechanical wear, steam or airborne impurity and can sneak in the hydraulic circuit; These impurity can corrode the casing wall of plunger pump 11 plunger cases; Perhaps influence mechanical characteristics, increase mechanical wear, cause the decline of plunger pump 11 work efficiencys, service life to shorten, can produce fuel clogging when serious and cause plunger pump 11 to damage.For preventing above-mentioned adverse consequences; The utility model is set up return filter 3 on the oil return pipe 22 between described radiator 4 to the braking electromagnetic valve 7, guarantee that through the filter core in the frequent change filter 3 the hydraulic oil clean level in the oil circuit is in optimum regime.
Claims (8)
1. brake device for car; Comprise hydraulic pressure petrol storage tank (2), the transport pipe (21) that is communicated with hydraulic pressure petrol storage tank (2) and oil return pipe (22); It is characterized in that: the driving gear (5) that is fixedly connected with a rotation coaxial in the inboard of automotive wheel (100) wheel hub (101) with it; Driving gear (5) is through linking to each other with the plunger pump brake gear (1) that is fixed on the vehicle bridge (200) with its ingear driven gear (6), and plunger pump brake gear (1) links to each other with hydraulic pressure petrol storage tank (2) with oil return pipe (22) through transport pipe (21) respectively.
2. brake device for car according to claim 1 is characterized in that:
Said plunger pump brake gear (1) comprises that plunger pump (11), quantitative control pump, oil circuit guide valve assembly and braking electromagnetic valve (7) constitute; The rotating shaft of plunger pump (11) and coaxial being fixedly linked of described driven gear (6); The control end of quantitative control pump is electrically connected with first touch switch of service brake plate control, and the adjusting connecting rod on it is regulated parts with plunger pump (11) output variable and linked to each other;
Said oil circuit guide valve assembly is made up of two two-bit triplet electromagnetic valves; Be respectively first valve (14) and second valve (15); The entrance point of first valve (14) links to each other with the oil inlet (12) of plunger pump (11); First via exit end on it links to each other with transport pipe (21), and the second way outlet end links to each other with the input end of described braking electromagnetic valve (7); The entrance point of second valve (15) links to each other with the oil outlet (13) of plunger pump (11), and the Third Road exit end on it links to each other with transport pipe (21), and the 4th way outlet end links to each other with the input end of described braking electromagnetic valve (7);
The control end of said oil circuit guide valve assembly is electrically connected with the 3rd touch switch of reversing automobile retaining control;
The control end of braking electromagnetic valve (7) is electrically connected with second touch switch of service brake plate control, and its mouth links to each other with oil return pipe (22).
3. brake device for car according to claim 2 is characterized in that: between said braking electromagnetic valve (7) input and output side, go back and be connected with to replace in short-term and open the closed flow solenoid valve (8) by control circuit control.
4. brake device for car according to claim 2 is characterized in that: said plunger pump (11) is axial plunger pump or radial plunger pump.
5. brake device for car according to claim 2 is characterized in that: on oil return pipe (22) road between braking electromagnetic valve (7) mouth to the petrol storage tank (2), be provided with oil strainer (3) and oil radiator (4) successively.
6. brake device for car according to claim 5 is characterized in that: said oil radiator (4) is fan-cooled radiator or water-cooling type radiator.
7. according to each described brake device for car among the claim 1-6, it is characterized in that: said driving gear (5) and driven gear (6) are spur wheel.
8. brake device for car according to claim 7 is characterized in that: the diameter of said driving gear (5) is greater than the diameter of driven gear (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220183531 CN202574170U (en) | 2012-04-26 | 2012-04-26 | Automobile braking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220183531 CN202574170U (en) | 2012-04-26 | 2012-04-26 | Automobile braking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202574170U true CN202574170U (en) | 2012-12-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220183531 Expired - Fee Related CN202574170U (en) | 2012-04-26 | 2012-04-26 | Automobile braking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202574170U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103129541A (en) * | 2013-03-15 | 2013-06-05 | 陈惠贤 | Hydraulic oil pump no-abrasion braking system |
| CN106891877A (en) * | 2017-03-03 | 2017-06-27 | 朱永刚 | Wheel machine system damping brake method |
| CN108466526A (en) * | 2018-03-15 | 2018-08-31 | 黄淮学院 | A kind of automotive hub electronics water cooling system |
| CN108674483A (en) * | 2018-04-28 | 2018-10-19 | 东风商用车有限公司 | Electro-hydraulic power-assisted steering brake system and control method thereof |
| CN110203179A (en) * | 2019-05-28 | 2019-09-06 | 武汉理工大学 | Brake for electric vehicle based on hydraulic energy braking |
-
2012
- 2012-04-26 CN CN 201220183531 patent/CN202574170U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103129541A (en) * | 2013-03-15 | 2013-06-05 | 陈惠贤 | Hydraulic oil pump no-abrasion braking system |
| CN106891877A (en) * | 2017-03-03 | 2017-06-27 | 朱永刚 | Wheel machine system damping brake method |
| CN108466526A (en) * | 2018-03-15 | 2018-08-31 | 黄淮学院 | A kind of automotive hub electronics water cooling system |
| CN108674483A (en) * | 2018-04-28 | 2018-10-19 | 东风商用车有限公司 | Electro-hydraulic power-assisted steering brake system and control method thereof |
| CN108674483B (en) * | 2018-04-28 | 2023-05-12 | 东风商用车有限公司 | Control method of electro-hydraulic power-assisted steering braking system |
| CN110203179A (en) * | 2019-05-28 | 2019-09-06 | 武汉理工大学 | Brake for electric vehicle based on hydraulic energy braking |
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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: 20121205 Termination date: 20140426 |