CN203780517U

CN203780517U - Plug-in mounting proportional valve

Info

Publication number: CN203780517U
Application number: CN201420163087.XU
Authority: CN
Inventors: 吴金富
Original assignee: Great Cheng Automation Engineering Co Ltd Of Jingjiang City
Current assignee: Great Cheng Automation Engineering Co Ltd Of Jingjiang City
Priority date: 2014-04-04
Filing date: 2014-04-04
Publication date: 2014-08-20
Anticipated expiration: 2024-04-04

Abstract

A plug-in mounting proportional valve comprises a valve body and a No.1 port, wherein the left side of the valve body is sequentially provided with an electromagnetic assembly, a valve core, a valve rod seat, a diaphragm a, a piston assembly and a spring C from top to bottom, the outer ring of the valve core is provided with the electromagnetic assembly, the middle of the valve rod seat is provided with a piston A, the outer ring of the piston assembly is provided with a sealing piece, the spring C is arranged at the bottom of the valve body, the right side of the valve body is sequentially provided with a diaphragm b, a spring B and a No.3 port, the left side of the valve body is provided with the No.1 port and a No.4 port, and the right side of the valve body is provided with a No.2 port. The plug-in mounting proportional valve is simple in structure and reasonable in design, the braking distance is shortened, the braking stability is improved, distribution of braking force between wheels, between a main vehicle (a towing vehicle) and a trailer as well as between the main vehicle and a semi-trailer is optimized, and popularization and application of the plug-in mounting proportional valve have good social benefit.

Description

Plug-in mounting apportioning valve

Technical field

The utility model belongs to vehicular spare parts technical field, particularly a kind of passenger vehicle, heavily card, towed vehicle use plug-in mounting apportioning valve.

Background technology

When filling the heavily blocking of goods when moving, need the brake-pressure by regulating trailing wheel, avoid loading to be heavily stuck in whipping and trailing wheel in braking procedure and, early than front-wheel locking, improve loading and be heavily stuck in reliability and the safety in braking procedure.

Application number is the Chinese patent of 200720027444.X, it discloses the more front relay valve of one, the area of thrust surface of relay piston upper surface are greater than the area of thrust surface of lower surface: regulating mechanism is housed in relay piston, can adjust and control mouthful and the air pressure difference of air extractor duct, the output pressure that makes air extractor duct exceeds much reaching the atmospheric pressure value being unlikely to after nominal operation atmospheric pressure value than controlling mouthful, can make like this brake of back axle can not lag behind, and back axle brake can be not a lot of in advance yet, thereby can not affect the brake stability of the front-rear axle of whole vehicle.As adopt this scheme, and in the time that delivery port air pressure is controlled implication pressure instantaneous reduction relatively, the air pressure of admission port and delivery port can not be ended, can cause that pilot piping breaks suddenly, affect traffic safety, there is potential safety hazard.

Summary of the invention

The purpose of this utility model will solve the problems of the technologies described above.

The purpose of this utility model is achieved in that plug-in mounting apportioning valve, comprises valve body, No. 1 mouth, it is characterized in that: described valve body left side is disposed with electromagnetic assembly, spool, valve rod base, diaphragm a, piston component, spring C from top to bottom; Spool outer ring is provided with electromagnetic assembly, in the middle of valve rod base, is provided with piston A, and the outer ring of piston component is provided with sealing member, and spring C is arranged on valve body bottom; Described valve body right side is disposed with diaphragm b, spring B, No. 3 mouths from top to bottom; Described valve body left side is provided with No. 1 mouth, No. 4 mouths; Described valve body right side is provided with mouth No. 2.The utility model is simple in structure, reasonable in design, has shortened stopping distance, has improved insensitivity, has optimized between each wheel, brakig force distribution between main car (tractor truck) and trailer, superimposed trailer, applies and has good social benefit.

Brief description of the drawings

Fig. 1 is that the utility model is in the generalized section of bulging idle mode of stopping.

Fig. 2 is that the utility model is in the generalized section of the bulging pattern of stopping-stop of stopping.

Fig. 3 is the generalized section of the utility model in conventional brake mode.

Fig. 4 be the utility model in the time of P1=1.0MPa, the drum of stopping stop-the stop performance diagram of pattern.

Fig. 5 be the utility model in the time of P1=1.0MPa, the performance diagram of conventional brake mode.

In figure: No. 1.1 mouths; 2. passage A; 3.A chamber; 4. spring A; 5. diaphragm a; 6. electromagnetic assembly; 7. spool; 8. valve body; 9. valve port A; 10.B chamber; 11. valve rod bases; 12. channel B; 13. valve port B; 14. diaphragm b; 15.2 number mouth; 16. spring B; 17.3 number mouth; 18. piston components; 19. spring C; 20.4 number mouth; 21. channel C; 501. piston A.

Detailed description of the invention

Below in conjunction with accompanying drawing, the utility model is described in further detail, but not as to restriction of the present utility model:

Plug-in mounting apportioning valve, comprises 8, No. 1 mouth 1 of valve body, and valve body 8 left sides are disposed with electromagnetic assembly 6, spool 7, valve rod base 11, diaphragm a5, piston component 18, spring C19 from top to bottom; Spool 7 outer rings are provided with electromagnetic assembly 6, in the middle of valve rod base 11, are provided with piston A501, and the outer ring of piston component 18 is provided with sealing member, and spring C19 is arranged on valve body 8 bottoms; Valve body 8 right sides are disposed with diaphragm b14,16, No. 3 mouths 17 of spring B from top to bottom; Valve body 8 left sides are provided with 1, No. 4 mouths 20 of No. 1 mouth; Described valve body 8 right sides are provided with mouth 15 No. 2.

When concrete enforcement, the plug-in mounting apportioning valve of electric brake system EBS (Electric Brake System), technical requirements is as follows: 1. working medium: air; 2. operating temperature :-40 DEG C～+ 80 DEG C; 3. maximum working pressure (MWP): P1=1.3MPa; 4. work supply gas pressure: P1=1.0MPa; 5. work delivery pressure: P2=1.0MPa; 6. pressure sensor input voltage: DC24V; 7. apportioning valve parameter: voltage MAX DC8V, electric current MAX 1.4A.

As shown in Figure 1, the bulging idle mode of stopping: No. 1 mouth 1 gas source is closed, the pressurized air that passes into No. 1 mouth 1 enters A chamber 3 through passage A2, diaphragm a5 is bullied and moves valve port A9 is closed on compressive strain band ovable valve stem 10, and under the effect of spring C19, A chamber 3 forms seal air cavity, B chamber 10 is without air pressure, valve port B13 is withstood and closes by spring B 16 and air pressure, and No. 2 mouths 15 are without air pressure, and the drum of stopping is unloaded.

As shown in Figure 2, Figure 4 shows, stop and rouse the pattern of stopping-stop: when apportioning valve obtains electric under ECU instruction, the electric current that electromagnetic assembly 6 gives according to instruction produces electromagnetic force, make spool 7 promote piston A501 and open valve port A9, No. 1 mouth 1 source of the gas entered the piston of valve port A9 promotion diaphragm b14, open valve port B13, gas source enters No. 2 mouths 15 and enters the drum of stopping again; According to the brake behavior of chaufeur, the deceleration that optimal control auxiliary braking system preferential ABS reach chaufeur requires ， to provide in good time brake torque Wei Brake vehicle brake.

As shown in Fig. 3, Fig. 5, conventional brake mode: when foot-operated air valve is opened, conventional drag is carried out the piston upper chamber that source of the gas flows directly into diaphragm b14 from No. 4 mouths 20 by channel C 21 and is formed air pressure, the piston that promotes diaphragm b14 moves down, open valve port B13, No. 1 mouth 1 gas source enters through passage A2, A chamber 3,12, No. 2 mouths 15 of channel B the drum of stopping.

The brake-pressure of EBS is adjusted in to front axle, send dependent instruction control rear axle module by the inner CAN bus of EBS, thereby the rear axle module that is built-in with pressure sensor is exported corresponding brake-pressure according to the deceleration demand of chaufeur, realize the braking control of back axle, in the time of vehicle speed reduction brake, according to the brake behavior of chaufeur, optimal control auxiliary braking system, for brake actuator provides in good time brake torque, complete deceleration.

Claims

1. plug-in mounting apportioning valve, comprise valve body (8), No. 1 mouth (1), it is characterized in that: described valve body (8) left side is disposed with electromagnetic assembly (6), spool (7), valve rod base (11), diaphragm a(5 from top to bottom), piston component (18), spring C(19); Spool (7) outer ring is provided with electromagnetic assembly (6), is provided with piston A(501 in the middle of valve rod base (11)), the outer ring of piston component (18) is provided with sealing member, spring C(19) be arranged on bottom valve body (8); Described valve body (8) right side is disposed with diaphragm b(14 from top to bottom), spring B (16), No. 3 mouths (17); Described valve body (8) left side is provided with No. 1 mouth (1), No. 4 mouths (19); Described valve body (8) right side is provided with No. 2 mouths (15).