CN101348113B - Air brake ABS electric control load sensor anti-lock braking executive system - Google Patents
Air brake ABS electric control load sensor anti-lock braking executive system Download PDFInfo
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- CN101348113B CN101348113B CN 200810138034 CN200810138034A CN101348113B CN 101348113 B CN101348113 B CN 101348113B CN 200810138034 CN200810138034 CN 200810138034 CN 200810138034 A CN200810138034 A CN 200810138034A CN 101348113 B CN101348113 B CN 101348113B
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Abstract
The invention provides a pneumatic ABS electric control inductive loading anti-lock brake execution system, comprising two ABS electromagnetic relay valves, an electronic load sensor, and a brake lamp switch; the pneumatic ABS electric control inductive loading anti-lock brake execution system is characterized in that an electric control inductive loading air-pressure adjusting valve, an air source control assembly and two balance pistons are added; wherein, the balance piston assembly is corresponding to the ABS electromagnetic relay valve; furthermore, the air inlet passage of the balance piston assembly is communicated with the output chamber B of the ABS electromagnetic relay valve; under the control of the size of the air pressure in the output chamber B, an anti-vacuum chamber E is communicated with the output chamber B or atmosphere through air passages; the electric control inductive loading air-pressure adjusting valve is fixedly arranged between two ABS electromagnetic relay valves; two air outlets are correspondingly connected with the control ports of the two ABS electromagnetic relay valves; the air source control assembly comprises an eccentric shaft which is provided with a handle and arranged inside the valve body, a checking valve, two guiding valves, an air inlet passage, an air passage, and three air outlet passages with one end communicated with each other. The electronic load sensor of the invention can automatically adjust the braking air pressure with the change of the load of the shaft, and have high sensitiveness and excellent working performance.
Description
Technical field
The present invention provides a kind of compressed air brake ABS electric-controlled load sensing anti-lock brake actuating system, belongs to the automobile brake technical field.
Background technology
Along with China's express highway backbone network basically forms, large-tonnage, long wheelbase master car and superimposed trailer, trailer with obvious ton-kilomiter cost advantage also increase year by year.When the long wheelbase emergency brake of vehicle, wheel is in locking, slip state, causes stopping distance to prolong, and vehicle produces sideslip or sideslip and makes vehicle lose steering capability.Traffic accident appears when especially bad weather, road conditions are not good easily.And existing ABS anti-skid brake system with can solve reflection time lag that seized problem can not solve air braking system during with heavy duty braking feel like jelly, put and brake or can not satisfy the required problems such as braking force of long wheelbase vehicle during semi-brake.
Summary of the invention
The purpose of this invention is to provide and a kind ofly can overcome above-mentioned defective, can be installed on main car and superimposed trailer or the trailer and use, have and automatically regulate braking pressure and the compressed air brake ABS electric-controlled load sensing anti-lock brake actuating system of the braking function of dying, excellent working performance.Its technical scheme is:
Comprise two ABS electromagnetic relay valves, electronics load transducer and stop lamp switch; It is characterized in that: set up electric-controlled load sensing air pressure adjusting valve, source of the gas control assembly and two dummy piston assemblies; Wherein the dummy piston assembly is corresponding one by one with the ABS electromagnetic relay valve; And the inlet channel of dummy piston assembly is communicated with the output cavity B of ABS electromagnetic relay valve; On the total sidewall of the vacuum chamber prevention E of dummy piston assembly and ABS electromagnetic relay valve, be provided with the air flue that runs through sidewall, control vacuum chamber prevention E through air flue and output cavity B or atmosphere by the size of output cavity B air pressure; The electric-controlled load sensing air pressure adjusting valve is fixedly mounted between two ABS electromagnetic relay valves, and is provided with the corresponding control mouth that connects two ABS electromagnetic relay valves of two air extractor ducts; Source of the gas control assembly comprises valve body, manual relief valve and check valve; Wherein valve body is provided with three air extractor ducts, an inlet channel and an air flue; One end of three air extractor ducts is communicated with, and the air extractor duct symmetry that is positioned at source of the gas control assembly both sides is located on the same line, and is communicated with the source of the gas mouth of ABS electromagnetic relay valve through attaching parts is corresponding; Manually relief valve comprises handle, threeway, is installed in the guiding valve that eccentric shaft and two covers in the valve body all are set with valve spring; Wherein be set with seal ring and valve seal on the eccentric shaft, and its head end level passes valve body and captive joint with handle, its end is in shutoff is fixed on valve body; Be pressed with spring between shutoff and the eccentric shaft; Terminal corresponding being fitted in the valve body of two guiding valves by air inlet pipe joint, shutoff, the axle center of the equal perpendicular alignmnet eccentric shaft in its center, and contacting by handle control and eccentric shaft; Valve body has through hole on the sidewall between shutoff and the guiding valve that press-fited by it; Through hole is communicated with three air extractor ducts; And three air extractor ducts are communicated with the cavity of eccentric shaft successively through air flue, check valve, inlet channel, and threeway is installed in valve body away from an end of the shutoff that press-fits the guiding valve and the cavity of connection eccentric shaft.
Described compressed air brake ABS electric-controlled load sensing anti-lock brake actuating system, check valve comprises ball valve and ball seat, wherein ball seat is installed in the valve body near inlet channel.
Described compressed air brake ABS electric-controlled load sensing anti-lock brake actuating system; Be positioned at the air extractor duct of source of the gas control assembly both sides, each air extractor duct is tightly connected an end shutoff of gas circuit attaching parts through the hollow excessive joint that is tightly connected and the gas circuit attaching parts of inner hollow; The place of being tightly connected at excessive joint and gas circuit attaching parts is provided with sealing nut; Hollow bolt passes from the central vertical of gas circuit attaching parts, and screw thread is installed in the source of the gas mouth of ABS electromagnetic relay valve, and another air extractor duct place is provided with curved joint.
Described compressed air brake ABS electric-controlled load sensing anti-lock brake actuating system; The electric-controlled load sensing air pressure adjusting valve comprises solenoid electric valve and relief piston assembly; Wherein the relief piston assembly comprises valve body, relief piston, pressure spring, positioning seat, spring perch, valve block, spring, seal receptacle, the separated dish that is provided with inlet suction port and two air extractor ducts; Positioning seat and relief piston from up to down be installed in the valve body and with the inner wall sealing of valve body, spring perch is installed in the below of positioning seat, pressure spring is fitted between the upper surface of spring perch and relief piston; Valve block and seal receptacle be installed in successively relief piston below; Pressure mounting of the spring is between the upper surface of the bottom of valve block and seal receptacle, and the below shutoff that is positioned at seal receptacle at a distance from dish is in the bottom of valve body, and body wall is provided with air flue and gas off-take; Wherein air flue is communicated between the inlet channel and inlet suction port of solenoid electric valve, and gas off-take is communicated with the upper surface of the gas off-take and the separated dish of air extractor duct, solenoid electric valve.
Described compressed air brake ABS electric-controlled load sensing anti-lock brake actuating system; Solenoid electric valve adopts normal opened type bi-bit bi-pass solenoid electric valve, and two air extractor ducts of electric-controlled load sensing air pressure adjusting valve are symmetrical with the line of centers of relief piston, and are located on the same line; Each air extractor duct is tightly connected through the hollow excessive joint that is tightly connected and the gas circuit attaching parts of inner hollow; One end shutoff of gas circuit attaching parts, the other end are provided with negative thread and are connected with hollow excessive joint, are provided with sealing nut at the place of being tightly connected of excessive joint and gas circuit attaching parts; Hollow bolt passes from the central vertical of gas circuit attaching parts, and screw thread is installed in the control mouth of ABS electromagnetic relay valve.
Described compressed air brake ABS electric-controlled load sensing anti-lock brake actuating system; Each dummy piston assembly includes seal ring, balance spring, Air Filter, dummy piston, equilibrium bomb spring abutment, pressure regulating seat and adjustable bolt; Wherein dummy piston is through seal ring and valve interior wall sealing; Inlet channel is arranged on the center of aiming at dummy piston on the valve body and the output cavity B that is communicated with the ABS electromagnetic relay valve; Balance spring is fitted between dummy piston and the equilibrium bomb spring abutment, and pressure regulating seat is equipped with adjustable bolt and is fitted in the outer end of equilibrium bomb spring abutment, and the contiguous seal ring of air flue is arranged on the valve body and is positioned at the side of seal ring near the equilibrium bomb spring abutment; And be communicated with vacuum chamber prevention E, be provided with sealing sheath in the outer end of pressure regulating seat.
Described compressed air brake ABS electric-controlled load sensing anti-lock brake actuating system, the electric signal output line of stop lamp switch connects the input end of electronics load transducer, the power end of the output termination solenoid electric valve of electronics load transducer.
Its principle of work is: unloaded glancing impact; The deflection of suspension is little; The sensing element of electronics load transducer is stressed; The solenoid electric valve of electric-controlled load sensing air pressure adjusting valve is in the energising mode of operation; Valve block and gap relief piston between of the control atmospheric pressure that main valve comes through the electric-controlled load sensing air pressure adjusting valve gets into the control chamber A of two ABS electromagnetic relay valves respectively from air extractor duct, and the rising of the control air pressure that main valve comes has overcome pressure spring when reaching certain numerical value spring force promotes to move on the relief piston, this moment valve block the combined action of control atmospheric pressure and spring down and the sealing surface of housing seal; The control air pressure that main valve is next gets into the gas circuit of the control chamber A of ABS electromagnetic relay valve and shuts, and the atmospheric pressure of control mouth can't communicate with the control chamber A of ABS electromagnetic relay valve through the gas off-take of solenoid electric valve.How the control air pressure no matter main valve comes raises, and the output pressure of the air extractor duct of electric-controlled load sensing air pressure adjusting valve maintains in the range of pressure before control air pressure gas circuit is shut, and the atmospheric pressure of the control chamber A of two ABS electromagnetic relay valves is also constant.This moment, the braking force of main car and superimposed trailer was lower than the braking force of propons, the size that the adhesion value that has increased tractor truck makes its braking force as far as possible and the adhesion value between tire and the ground adapt.
The heavy duty glancing impact, the deflection of suspension increases, and the sensing element of electronics load transducer is not stressed, and the solenoid electric valve outage of electric-controlled load sensing air pressure adjusting valve quits work.The control atmospheric pressure that main valve comes gets into the control chamber A of two ABS electromagnetic relay valves through the gas off-take of electric-controlled load sensing air pressure adjusting valve and solenoid electric valve; The vacuum chamber prevention E of the two-diameter piston of ABS electromagnetic relay valve is through air flue and atmosphere at this moment; The pressure ratio of output cavity B increases, and improves the braking force that 20%-50% does not wait.When the atmospheric pressure of the output cavity B of ABS electromagnetic relay valve during greater than the spring force of dummy piston and balance spring; The promotion dummy piston moves; Dummy piston seals air flue; The atmospheric pressure of output cavity B enters into vacuum chamber prevention E through inlet channel, air flue and makes the two-diameter piston upper and lower end air pressure area ratio gas pressure balance that changes, and the pressure ratio of control chamber A and output cavity B becomes output in 1: 1.Make heavily loaded glancing impact increase the braking force of back axle, shortened the reflection time of braking, the braking safety when having improved the vehicle heavy duty.
During brake off, when the atmospheric pressure of control chamber A reduces because two-diameter piston upper and lower end gas pressure balance, the atmospheric pressure of the atmospheric pressure of output cavity B and control chamber A reduces exhaust synchronously and realizes synchronous brake off function.
When trailer braking protection valve was removed, handle was horizontal when superimposed trailer, trailer are connected with main car, and eccentric shaft is with the guiding valve open of level attitude, and the supply air line of main car is communicated with source of the gas chamber A.Top at manual relief valve is provided with the threeway air extractor duct, can be connected with the brake application by spring air chamber of superimposed trailer, trailer.When needs superimposed trailer, trailer and tractor truck break away from; Supply air line rubber sphere and the ball seat sealing of dying; This moment, manually the threeway air extractor duct and the atmosphere brake application by spring air chamber on the top of relief valve carried out braking during standstill, and superimposed trailer, trailer are in braking mode and can't move, and chaufeur needs to push handle to upright position; By the guiding valve open of eccentric shaft with the upright position; Simultaneously the guiding valve of level attitude is under the effect of valve spring and housings close, and the atmospheric pressure of trailer air receiver gets into the threeway air extractor duct on the top of manual relief valve through passage, the braking of releasing brake application by spring air chamber under the effect of trailer air receiver atmospheric pressure; Superimposed trailer, trailer braking protection valve are removed, and superimposed trailer, trailer can arbitrarily be moved.
The present invention has compared with prior art been installed electric-controlled load sensing air pressure adjusting valve, source of the gas control assembly and two dummy piston assemblies additional, makes that the electronics load transducer can be along with the variation of axle load; Automatically regulate braking pressure; The size that the makes braking force as far as possible adhesion condition between tire and ground adapts, and has increased the manual removing function of trailer and has died braking function, has further ensured the vehicle braked safety; Increased the dummy piston assembly again and can make the vehicle implementation synchronous braking; Further reduce the Tyte Wear amount, and the stability that keeps automobile under various load, various deceleration situation, to brake, highly sensitive; Excellent working performance, good stability.
Description of drawings
Fig. 1 is the birds-eye view and the circuit connection diagram of the embodiment of the invention;
Fig. 2 is A-A part sectional view embodiment illustrated in fig. 1;
Fig. 3 is B-B part sectional view embodiment illustrated in fig. 1;
Fig. 4 is the birds-eye view of middle electric-controlled load sensing air pressure adjusting valve embodiment illustrated in fig. 1;
Fig. 5 is a C-C section-drawing embodiment illustrated in fig. 4;
Fig. 6 is D-D part sectional view embodiment illustrated in fig. 4;
Fig. 7 is the E-E section-drawing of middle source of the gas control assembly embodiment illustrated in fig. 2;
Fig. 8 is the birds-eye view of source of the gas control assembly embodiment shown in Figure 7;
Fig. 9 is a F-F section-drawing embodiment illustrated in fig. 8;
Figure 10 is a H-H section-drawing embodiment illustrated in fig. 8;
Figure 11 is the input-output transfer curve.
Among the figure: 1; Gas circuit attaching parts 2; The vertical air flue 3 of hollow bolt 2-1; Sealing nut 4; Excessive joint 5; Electric-controlled load sensing air pressure adjusting valve 5-1; Valve body 5-2; Relief piston 5-3; Pressure spring 5-4; Seal ring 5-5; Dust boot 5-6; Positioning seat 5-7; Trimming screw 5-8; Spring perch 5-9; Valve block 5-10; Spring 5-11; Seal receptacle 5-12; At a distance from dish 5-13; Solenoid electric valve 5-14; Gas off-take 5-15; Inlet channel 5-16; Air flue 5-17; Gas off-take 5-18; Inlet suction port 5-19; Air extractor duct 5-20; Gas off-take 6; ABS electromagnetic relay valve 7; Source of the gas control assembly 7-1; Air inlet pipe joint 7-2; Valve spring 7-3; Guiding valve 7-4; Eccentric shaft 7-5; 7-18 shutoff 7-6; Threeway 7-7; Ball seat 7-8; Ball valve 7-9; Air flue 7-10; Curved joint 7-11; Air extractor duct 7-12; Handle 7-13; Valve body 7-14; Seal ring 7-15; Spring 7-16; Inlet channel 7-17; Through hole 8; Seal ring 9; Two-diameter piston 10; Air flue 11; Balance spring 12; Air Filter 13; Inlet channel 14; Dummy piston 15; Equilibrium bomb spring abutment 16; Pressure regulating seat 17; Trimming screw 18; Sealing sheath 19; Silencer 20; Support 21; Electronics load transducer 22; Stop lamp switch 23; Control mouth 24; Source of the gas mouth 25; Valve A; Control chamber B; Output cavity E; Vacuum chamber prevention X1; X2; The X3 curve
The specific embodiment
In the embodiment shown in Fig. 1-9: two ABS electromagnetic relay valves 6 are connected to one through support 20; Each ABS electromagnetic relay valve 6 correspondence is provided with a dummy piston assembly; Comprise seal ring 8, balance spring 11, Air Filter 12, dummy piston 14, equilibrium bomb spring abutment 15, pressure regulating seat 16 and adjustable bolt 17, wherein dummy piston 14 is through seal ring 8 and valve body 25 inner wall sealings, and inlet channel 13 is arranged on the center of aiming at dummy piston 14 on the valve body 25 and the output cavity B that is communicated with ABS electromagnetic relay valve 6; Balance spring 11 is fitted between dummy piston 14 and the equilibrium bomb spring abutment 15; Pressure regulating seat 16 is equipped with adjustable bolt 17 and is fitted in the outer end of equilibrium bomb spring abutment 15, and air flue 10 contiguous seal rings 8 are arranged on the valve body 25 and are positioned at the side of seal ring 8 near equilibrium bomb spring abutment 15, and are communicated with vacuum chamber prevention E; Control vacuum chamber prevention E through air flue 10 and output cavity B or atmosphere by the size of output cavity B air pressure; Promptly when output cavity B air pressure is enough big, open dummy piston 14, vacuum chamber prevention E is communicated with output cavity B through air flue 10; Otherwise vacuum chamber prevention E is through air flue 10 and atmosphere.Be provided with sealing sheath 18 in the outer end of pressure regulating seat 16.
Electric-controlled load sensing air pressure adjusting valve 5 is fixedly mounted between two ABS electromagnetic relay valves 6; Comprise normal opened type bi-bit bi-pass solenoid electric valve 5-13 and relief piston assembly; Wherein the power end of solenoid electric valve 5-13 connects the mouth of electronics load transducer 21 through stop lamp switch 22; The relief piston assembly comprises valve body 5-1, relief piston 5-2, pressure spring 5-3, positioning seat 5-6, spring perch 5-8, valve block 5-9, spring 5-10, seal receptacle 5-11, the separated dish 5-12 that is provided with inlet suction port 5-18 and two air extractor duct 5-19; Positioning seat 5-6 and relief piston 5-2 from up to down be installed in the valve body 5-1 and with the inner wall sealing of valve body 5-1; Spring perch 5-8 is installed in the below of positioning seat 5-6; Pressure spring 5-3 is fitted between the upper surface of spring perch 5-8 and relief piston 5-2, valve block 5-9 and seal receptacle 5-11 be installed in successively relief piston 5-2 below, spring 5-10 is fitted between the upper surface of bottom and seal receptacle 5-11 of valve block 5-9; 5-12 is positioned at the bottom of the below shutoff of seal receptacle 5-11 at valve body 5-1 at a distance from dish; Valve body 5-1 sidewall is provided with air flue 5-16 and gas off-take 5-17, and wherein air flue 5-16 is communicated between the inlet channel 5-15 and inlet suction port 5-18 of solenoid electric valve 5-13, and gas off-take 5-17 is communicated with the upper surface of gas off-take 5-14 and the separated dish 5-12 of air extractor duct 5-19, solenoid electric valve 5-13.Two air extractor duct 5-19 are with the line of centers symmetry of relief piston 5-2; And be located on the same line; Each air extractor duct 5-19 is tightly connected through the gas circuit attaching parts 1 of the hollow excessive joint that is tightly connected 4 with inner hollow; One end shutoff of gas circuit attaching parts 1, the other end are provided with negative thread and are connected with hollow excessive joint 4, are provided with sealing nut 3 at the place of being tightly connected of excessive joint 4 and gas circuit attaching parts 1; Hollow bolt 2 passes from the central vertical of gas circuit attaching parts 1, and screw thread is installed in the control mouth 23 of ABS electromagnetic relay valve.
The check valve that source of the gas control assembly 7 comprises valve body 7-13, handle 7-12, be installed in eccentric shaft 7-4 in the valve body 7-13, be made up of ball valve 7-8 and ball seat 7-7, the guiding valve 7-3 that two covers all are set with valve spring 7-2; Be provided with gas off-take 7-11, inlet channel 7-16 and air flue 7-9 that three one ends are communicated with in the valve body 7-13; Wherein ball seat 7-7 is installed in the valve body 7-13 near inlet channel 7-16; The air extractor duct 7-11 symmetry that is positioned at source of the gas control assembly 7 both sides is located on the same line; Each air extractor duct 7-11 is tightly connected through the gas circuit attaching parts 1 of the hollow excessive joint that is tightly connected 4 with inner hollow; One end shutoff of gas circuit attaching parts 1, the other end are provided with negative thread and are connected with hollow excessive joint 4, are provided with sealing nut 3 at the place of being tightly connected of excessive joint 4 and gas circuit attaching parts 1; Hollow bolt 2 passes from the central vertical of gas circuit attaching parts 1, and screw thread is installed in the source of the gas mouth 24 of ABS electromagnetic relay valve; Be set with seal ring 7-14 and valve body 7-13 sealing on the eccentric shaft 7-4; And its head end level passes valve body 7-13 and captives joint with handle 7-12; Its end is pressed with spring 7-15 between shutoff 7-5 and the eccentric shaft 7-4 in shutoff 7-5 is fixed on valve body 7-13, the first cover guiding valve 7-3 is fitted in the valve body 7-13 by air inlet pipe joint 7-1; The second cover guiding valve 7-3 is fitted in the valve body 7-13 by shutoff 7-18; Be provided with the cavity that threeway 7-6 is communicated with setting-up eccentricity axle 7-4 at the second cover guiding valve 7-3 away from the other end of shutoff 7-18, the axle center of two guiding valve 7-3 center equal perpendicular alignmnet eccentric shaft 7-4, and contacting by handle 7-12 control and eccentric shaft 7-4; Valve body 7-13 is having through hole 7-17 on the sidewall between the second cover guiding valve 7-3 and the shutoff 7-18; Through hole 7-17 is communicated with three gas off-take 7-11; And gas off-take 7-11 is communicated with the cavity of eccentric shaft 7-4 successively through air flue 7-9, check valve, inlet channel 7-16, valve body 7-13 is provided with curved joint 7-10 and is communicated with gas off-take 7-11.
In the embodiment shown in fig. 11: curve X1 is the adjustable input characteristic curve of heavily loaded total travel glancing impact; Curve X2 is the adjustable input characteristic curve of unloaded total travel glancing impact; Output characteristic curve when curve X3 is the total travel brake off.
Claims (7)
1. compressed air brake ABS electric-controlled load sensing anti-lock brake actuating system; Comprise two ABS electromagnetic relay valves (6), electronics load transducer (21) and stop lamp switch (22); It is characterized in that: set up electric-controlled load sensing air pressure adjusting valve (5), source of the gas control assembly (7) and two dummy piston assemblies; Wherein the dummy piston assembly is corresponding one by one with ABS electromagnetic relay valve (6); And the inlet channel of dummy piston assembly (13) is communicated with the output cavity (B) of ABS electromagnetic relay valve (6); On the total sidewall of the vacuum chamber prevention (E) of dummy piston assembly and ABS electromagnetic relay valve (6), be provided with first air flue (10) that runs through sidewall, control vacuum chamber prevention (E) through said first air flue (10) and output cavity (B) or atmosphere by the size of output cavity (B) air pressure; Electric-controlled load sensing air pressure adjusting valve (5) is fixedly mounted between two ABS electromagnetic relay valves (6), and is provided with the corresponding control mouth (23) that connects two ABS electromagnetic relay valves (6) of two air extractor ducts (5-19); Source of the gas control assembly (7) comprises first valve body (7-13), manual relief valve and check valve; Wherein first valve body (7-13) is provided with three air extractor ducts (7-11), an inlet channel (7-16) and one second air flue (7-9); One end of three air extractor ducts (7-11) is communicated with; And be positioned at air extractor duct (7-11) symmetric arrangement of source of the gas control assembly (7) both sides; And be located on the same line; Be communicated with the source of the gas mouth (24) of ABS electromagnetic relay valve through gas circuit attaching parts correspondence; Manually relief valve comprises handle (7-12), threeway (7-6), the eccentric shaft (7-4) that is installed in first valve body (7-13) overlaps the guiding valve (7-3) that all is set with valve spring (7-2) with two; Wherein eccentric shaft (7-4) is set with the sealing of seal ring (7-14) and first valve body (7-13), and its head end level passes first valve body (7-13) and captive joint with handle (7-12), and its end is in shutoff (7-5) is fixed on first valve body (7-13); Be pressed with spring (7-15) between shutoff (7-5) and the eccentric shaft (7-4); Two the terminal corresponding of guiding valves (7-3) are fitted in first valve body (7-13) by air inlet pipe joint (7-1), shutoff (7-18), the axis of the equal perpendicular alignmnet eccentric shaft in its center (7-4), and contact with the valve (7-3) that leads by handle (7-12) control eccentric shaft (7-4); First valve body (7-13) has through hole (7-17) on the sidewall between shutoff (7-18) and the guiding valve (7-3) that press-fited by it; Through hole (7-17) is communicated with three air extractor ducts (7-11); And three air extractor ducts (7-11) are communicated with the cavity of setting-up eccentricity axle (7-4) successively through said second air flue (7-9), check valve, inlet channel (7-16), and threeway (7-6) is installed in first valve body (7-13) away from an end of the shutoff (7-18) that press-fits guiding valve (7-3) and the cavity of connection setting-up eccentricity axle (7-4).
2. compressed air brake ABS electric-controlled load sensing anti-lock brake actuating system as claimed in claim 1, it is characterized in that: check valve comprises ball valve (7-8) and ball seat (7-7), and wherein ball seat (7-7) is installed in first valve body (7-13) near inlet channel (7-16).
3. compressed air brake ABS electric-controlled load sensing anti-lock brake actuating system as claimed in claim 1; It is characterized in that: each air extractor duct (7-11) that is arranged in the air extractor duct (7-11) of source of the gas control assembly (7) both sides is tightly connected through the hollow crossover sub (4) that the is tightly connected said gas circuit attaching parts (1) with inner hollow; One end shutoff of gas circuit attaching parts (1); The place of being tightly connected at crossover sub (4) and gas circuit attaching parts (1) is provided with sealing nut (3); Pass hollow bolt (2) from the central vertical of gas circuit attaching parts (1); And screw thread is installed in the source of the gas mouth (24) of ABS electromagnetic relay valve (6), and another air extractor duct (7-11) locates to be provided with curved joint (7-10).
4. compressed air brake ABS electric-controlled load sensing anti-lock brake actuating system as claimed in claim 1; It is characterized in that: electric-controlled load sensing air pressure adjusting valve (5) comprises solenoid electric valve (5-13) and relief piston assembly; Wherein the relief piston assembly comprises second valve body (5-1), relief piston (5-2), pressure spring (5-3), positioning seat (5-6), spring perch (5-8), valve block (5-9), spring (5-10), seal receptacle (5-11), the separated dish (5-12) that is provided with inlet suction port (5-18) and two air extractor ducts (5-19); Positioning seat (5-6) and relief piston (5-2) from up to down be installed in second valve body (5-1) and with the inner wall sealing of second valve body (5-1); Spring perch (5-8) is installed in the below of positioning seat (5-6); Pressure spring (5-3) is fitted between the upper surface of spring perch (5-8) and relief piston (5-2); Valve block (5-9) and seal receptacle (5-11) be installed in successively relief piston (5-2) below; Spring (5-10) is fitted between the upper surface of bottom and seal receptacle (5-11) of valve block (5-9); Be positioned at the bottom of the below shutoff of seal receptacle (5-11) at a distance from dish (5-12) at second valve body (5-1); Second valve body (5-1) sidewall is provided with air flue (5-16) and gas off-take (5-17); Wherein air flue (5-16) is communicated between the inlet channel (5-15) and inlet suction port (5-18) of solenoid electric valve (5-13), and gas off-take (5-17) is communicated with the upper surface of the gas off-take (5-14) and the separated dish (5-12) of air extractor duct (5-19), solenoid electric valve (5-13).
5. compressed air brake ABS electric-controlled load sensing anti-lock brake actuating system as claimed in claim 4; It is characterized in that: solenoid electric valve (5-13) adopts normal opened type bi-bit bi-pass solenoid electric valve; Two air extractor ducts (5-19) of electric-controlled load sensing air pressure adjusting valve (5) are with the line of centers symmetric arrangement of relief piston (5-2); And be located on the same line; Each air extractor duct (5-19) is tightly connected through the hollow crossover sub (4) that is tightly connected another gas circuit attaching parts (1) with inner hollow; One end shutoff of gas circuit attaching parts (1), the other end are provided with negative thread and are connected with hollow crossover sub (4), are provided with sealing nut (3) at the place of being tightly connected of crossover sub (4) and gas circuit attaching parts (1); Pass hollow bolt (2) from the central vertical of gas circuit attaching parts (1), and screw thread is installed in the control mouth (23) of ABS electromagnetic relay valve (6).
6. compressed air brake ABS electric-controlled load sensing anti-lock brake actuating system as claimed in claim 1; It is characterized in that: each dummy piston assembly includes seal ring (8), balance spring (11), Air Filter (12), dummy piston (14), equilibrium bomb spring abutment (15), pressure regulating seat (16) and adjustable bolt (17); Wherein dummy piston (14) is through three valve body (25) inner wall sealing of seal ring (8) with ABS electromagnetic relay valve (6); The inlet channel of said dummy piston assembly (13) is arranged on the 3rd valve body (25) and goes up the center of aiming at dummy piston (14) and the output cavity (B) that is communicated with ABS electromagnetic relay valve (6); Balance spring (11) is fitted between dummy piston (14) and the equilibrium bomb spring abutment (15); Pressure regulating seat (16) is equipped with adjustable bolt (17) and is fitted in the outer end of equilibrium bomb spring abutment (15); The contiguous seal ring of said first air flue (10) of dummy piston assembly (8) is arranged on the 3rd valve body (25) and is positioned at the side of seal ring (8) near equilibrium bomb spring abutment (15); And be communicated with vacuum chamber prevention (E), be provided with sealing sheath (18) in the outer end of pressure regulating seat (16).
7. compressed air brake ABS electric-controlled load sensing anti-lock brake actuating system as claimed in claim 4; It is characterized in that: the electric signal output line of stop lamp switch (22) connects the input end of electronics load transducer (21), the power end of the output termination solenoid electric valve (5-13) of electronics load transducer (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810138034 CN101348113B (en) | 2008-06-28 | 2008-06-28 | Air brake ABS electric control load sensor anti-lock braking executive system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810138034 CN101348113B (en) | 2008-06-28 | 2008-06-28 | Air brake ABS electric control load sensor anti-lock braking executive system |
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| CN101348113A CN101348113A (en) | 2009-01-21 |
| CN101348113B true CN101348113B (en) | 2012-12-26 |
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| CN 200810138034 Expired - Fee Related CN101348113B (en) | 2008-06-28 | 2008-06-28 | Air brake ABS electric control load sensor anti-lock braking executive system |
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|---|---|---|---|---|
| CN101585356B (en) * | 2009-06-15 | 2012-04-04 | 上海万捷汽车控制系统有限公司 | Air-pressure brake antilock device of trailer |
| CN113771810A (en) * | 2021-09-24 | 2021-12-10 | 瑞安市瀚德车辆部件有限公司 | ABS air pressure regulating valve |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4560210A (en) * | 1982-08-14 | 1985-12-24 | Mitsubishi Jidosha Kogyo Kabushiki Kaisha | Brake system for vehicles |
| EP0415808A1 (en) * | 1989-08-31 | 1991-03-06 | Alliedsignal Europe Services Techniques | Support for a suspension element |
| US5080446A (en) * | 1989-09-19 | 1992-01-14 | Tokico Ltd. | Hydraulic pressure control device |
| CN1122758A (en) * | 1994-11-10 | 1996-05-22 | 安源基 | Loading-unloading braking controlling device |
| CN200960914Y (en) * | 2006-10-23 | 2007-10-17 | 淄博龙达汽车配件制造有限公司 | Electric control load sensor proportion valve |
| CN101168366A (en) * | 2006-10-23 | 2008-04-30 | 淄博龙达汽车配件制造有限公司 | Electric control load sensor proportion valve |
-
2008
- 2008-06-28 CN CN 200810138034 patent/CN101348113B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4560210A (en) * | 1982-08-14 | 1985-12-24 | Mitsubishi Jidosha Kogyo Kabushiki Kaisha | Brake system for vehicles |
| EP0415808A1 (en) * | 1989-08-31 | 1991-03-06 | Alliedsignal Europe Services Techniques | Support for a suspension element |
| US5080446A (en) * | 1989-09-19 | 1992-01-14 | Tokico Ltd. | Hydraulic pressure control device |
| CN1122758A (en) * | 1994-11-10 | 1996-05-22 | 安源基 | Loading-unloading braking controlling device |
| CN200960914Y (en) * | 2006-10-23 | 2007-10-17 | 淄博龙达汽车配件制造有限公司 | Electric control load sensor proportion valve |
| CN101168366A (en) * | 2006-10-23 | 2008-04-30 | 淄博龙达汽车配件制造有限公司 | Electric control load sensor proportion valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101348113A (en) | 2009-01-21 |
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