CN201472355U - Automotive brake with pressure adjustment function - Google Patents
Automotive brake with pressure adjustment function Download PDFInfo
- Publication number
- CN201472355U CN201472355U CN2009201389308U CN200920138930U CN201472355U CN 201472355 U CN201472355 U CN 201472355U CN 2009201389308 U CN2009201389308 U CN 2009201389308U CN 200920138930 U CN200920138930 U CN 200920138930U CN 201472355 U CN201472355 U CN 201472355U
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- piston
- valve
- spring
- brake cylinder
- master brake
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- Hydraulic Control Valves For Brake Systems (AREA)
Abstract
The utility model discloses an automotive brake with pressure adjustment function which comprises a brake main pump and a proportionate valve, wherein the brake main pump is mainly composed of an oil cup, a quick filling valve, a brake main cylinder, a second reset spring, a spring support base, a second piston, a first reset spring, a first piston and an auxiliary leather ring, the proportionate valve comprises proportionate valve pistons, proportionate valve springs, sealing leather rings and output pressure cavities used as a proportionate valve cavity, wherein two output pressure cavities are transversely opened on the brake main cylinder, two proportionate valve pistons and the proportionate valve springs which are sleeved on the proportionate valve pistons are respectively movably sleeved in the output pressure cavities, and the sealing leather rings are sleeved on the inner top portions of the proportionate valve pistons. As the brake main pump is integrated with the pressure adjustor (the proportionate valve), the structure is more compact, the occupied space is small, the cost is reduced, and the whole weight of automobiles is lightened.
Description
Technical field
The utility model relates to a kind of vehicular spare parts, particularly relates to a kind of car brake with pressure control function.
Background technology
Car brake is the vitals of automobile, is the key that guarantees traffic safety.Commonly use car brake (as shown in Figure 1) and be made up of master brake cylinder 1 ' and pressure regulator 2 ', master brake cylinder 1 ' is what to separate with pressure regulator 2 ', and it is big to take up room, and the cost height increases the automobile total weight.
The utility model content
The purpose of this utility model is to provide a kind of car brake little, with low cost, that have the pressure control function that takes up room.
For achieving the above object, technical solution of the present utility model is:
The utility model is a kind of car brake with pressure control function, and it is made up of master brake cylinder and apportioning valve; Described master brake cylinder mainly is made up of lubricating cup, quick charge valve, master brake cylinder, second retracing spring, spring supporting seat, second piston, first retracing spring, first piston and auxiliary apron; Described lubricating cup lower end oilhole is communicated with the radial direction through hole on the master brake cylinder sidewall, and described quick charge valve is nested with in the oilhole of lubricating cup lower end; Described second retracing spring, spring supporting seat, second piston, first retracing spring, first piston are nested with in regular turn in the longitudinal hole of master brake cylinder, at the auxiliary apron of second piston, two side steps step surface sockets; On the described second retracing spring socket spring supporting seat, first retracing spring is socketed on second piston and two ends lean respectively on the inboard side steps step surface of side steps step surface and first piston outside second piston; Described apportioning valve is formed by apportioning valve piston, apportioning valve spring, lute with as the delivery pressure chamber of ratio valve pocket; On master brake cylinder, laterally offer two delivery pressure chambeies, two apportioning valve pistons together with the proportional spring of socket on it respectively activity be nested with in the delivery pressure chamber, lute is socketed in apportioning valve piston inner top.
After adopting such scheme, because the utility model becomes one master brake cylinder and pressure regulator (apportioning valve), structure is compact more, and it is little to take up room, and has reduced cost, has alleviated the automobile total weight.
Below in conjunction with the drawings and specific embodiments the utility model is further described.
Description of drawings
Fig. 1 commonly uses the car brake structural representation;
Fig. 2 is a structural representation of the present utility model;
Fig. 3 is a three-dimensional exploded view of the present utility model;
Fig. 4 is an assembly drowing of the present utility model;
Fig. 5 A is the cutaway view of the utility model apportioning valve;
Fig. 5 B be Fig. 5 A edge D-D to cutaway view;
Fig. 6 is the force diagram of the utility model apportioning valve.
The specific embodiment
As shown in Figure 3, the utility model is a kind of car brake with pressure control function, and it is made up of master brake cylinder 1 and apportioning valve 2.
Described master brake cylinder 1 mainly is made up of lubricating cup 11, quick charge valve 12, master brake cylinder 13, second retracing spring 14, spring supporting seat 15, second piston 16, first retracing spring 17, first piston 18 and auxiliary apron 19.
Described lubricating cup 11 lower end oilholes are communicated with the radial direction through hole on master brake cylinder 13 sidewalls, and described quick charge valve 12 is nested with in lubricating cup 11 lower end oilholes; Described second retracing spring 14, spring supporting seat 15, second piston 16, first retracing spring 17, first piston 18 are nested with in regular turn in the longitudinal hole 131 of master brake cylinder 13, at the auxiliary apron 19 of 16 liang of side steps step surfaces of second piston socket; On described second retracing spring, the 14 socket spring supporting seats 15, first retracing spring 17 is socketed on second piston 16 and two ends lean respectively on the inboard side steps step surface of side steps step surface and first piston 18 outside second piston 16.
Shown in Fig. 4, Fig. 5 A, Fig. 5 B, described apportioning valve 2 as pressure regulator is by apportioning valve piston 21, apportioning valve spring 22, form as delivery pressure chamber 23, the lute 24 of ratio valve pocket; laterally offer on the master brake cylinder 13 23, two the apportioning valve pistons 21 in two delivery pressure chambeies together with the proportional spring 22 of socket on it respectively activity be nested with in delivery pressure chamber 23, lute 24 is socketed in apportioning valve piston 21 inner tops.
Principle of work of the present utility model (as Fig. 2 with reference to figure 4, shown in Figure 6):
The utility model becomes one master brake cylinder 1 and pressure regulator (apportioning valve 2).During brake, apply power to stretcher, utilize lever principle, power is amplified, make master brake cylinder 13 obtain bigger propulsion source by vacuum booster, utilize hydraulic action P=F/S, in order to improve the sensitivity of brake,, increase quick charge valve 12 and carry out repairing at the liquid feed device place, make to produce brake-pressure in first brake chamber fast, can front-wheel C, D brake in advance; The pressure of output utilizes difference of pressure to distribute on master brake cylinder 13, makes each chamber delivery pressure that 2 oil outlets (wherein 1 oil outlet and another oil outlet pressure become second nature line than) all be arranged.With output than the pressure in row chamber respectively diagonal line be connected on the brake wheel cylinder, one on front-wheel, one of trailing wheel, the actual hydraulic pressure curve that makes trailing wheel technically prevents that as far as possible near desirable hydraulic pressure curve trailing wheel from breakking away prior to the front-wheel locking.Braking force is produced by the friction of tire and ground-surface, increases with the increase of the load that wheel bore.During car brakeing, center of gravity is because inertia will move forward (the especially car of f-w-d).Cause the load of front-wheel to increase, the load of trailing wheel reduces.So the braking force that front and rear wheel can produce also can change with same trend.If apply same braking force simultaneously on front and back wheel, the trailing wheel that load is lighter can skid in too early locking generation.During tyre slip, tire and ground-surface friction force can become minimum.Tire can not keep fully contacting with ground-surface.The phenomenon that just may occur laterally wagging the tail this moment, its consequence is abnormally dangerous.
The utility model pressure proportioning valve 2 principle of work: utilize hydraulic pressure F=PS principle, when P constant, because of S=π R
2/ 4, D＞(d1-d2), F1＞F2, force analysis, the power F3=Kx that makes progress because of proportional valve spring 22 again, so F1-F2＜F3, piston apportioning valve 2 is upwards moving, this moment, brake solution flowed as scheme drawing; When F1=F2+F3 apportioning valve piston 21 is in balance, apportioning valve piston 21 is in motionless state; When P increases certain value, during F1＞F2+F3, after apportioning valve piston 21 overcame the spring force value, apportioning valve piston 21 moved downward, tightly push down lute 24, after the sealing, apportioning valve piston 21 is in state of equilibrium, at this moment F1=F2+F3, because of P=F/S, so S1＞S2 is P1＜P2.Barometric pressure and apportioning valve piston 21 gravity can be ignored.
Emphasis of the present utility model just is: master brake cylinder and pressure regulator (apportioning valve) are become one.
Claims (1)
1. car brake with pressure control function, it is characterized in that: it is made up of master brake cylinder and apportioning valve; Described master brake cylinder mainly is made up of lubricating cup, quick charge valve, master brake cylinder, second retracing spring, spring supporting seat, second piston, first retracing spring, first piston and auxiliary apron; Described lubricating cup lower end oilhole is communicated with the radial direction through hole on the master brake cylinder sidewall, and described quick charge valve is nested with in the oilhole of lubricating cup lower end; Described second retracing spring, spring supporting seat, second piston, first retracing spring, first piston are nested with in regular turn in the longitudinal hole of master brake cylinder, at the auxiliary apron of second piston, two side steps step surface sockets; On the described second retracing spring socket spring supporting seat, first retracing spring is socketed on second piston and two ends lean respectively on the inboard side steps step surface of side steps step surface and first piston outside second piston; Described apportioning valve is formed by apportioning valve piston, apportioning valve spring, lute with as the delivery pressure chamber of ratio valve pocket; On master brake cylinder, laterally offer two delivery pressure chambeies, two apportioning valve pistons together with the proportional spring of socket on it respectively activity be nested with in the delivery pressure chamber, lute is socketed in apportioning valve piston inner top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201389308U CN201472355U (en) | 2009-06-09 | 2009-06-09 | Automotive brake with pressure adjustment function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201389308U CN201472355U (en) | 2009-06-09 | 2009-06-09 | Automotive brake with pressure adjustment function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201472355U true CN201472355U (en) | 2010-05-19 |
Family
ID=42408598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201389308U Expired - Lifetime CN201472355U (en) | 2009-06-09 | 2009-06-09 | Automotive brake with pressure adjustment function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201472355U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112026731A (en) * | 2020-08-12 | 2020-12-04 | 安徽江淮银联重型工程机械有限公司 | Full-vehicle braking system of electric tractor |
-
2009
- 2009-06-09 CN CN2009201389308U patent/CN201472355U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112026731A (en) * | 2020-08-12 | 2020-12-04 | 安徽江淮银联重型工程机械有限公司 | Full-vehicle braking system of electric tractor |
| CN112026731B (en) * | 2020-08-12 | 2023-09-29 | 安徽江淮重型工程机械有限公司 | Full-vehicle braking system of electric tractor |
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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: 20100519 |
|
| CX01 | Expiry of patent term |