CN113968204A - Automatically controlled auxiliary braking system of ABS relay valve - Google Patents
Automatically controlled auxiliary braking system of ABS relay valve Download PDFInfo
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- CN113968204A CN113968204A CN202111175992.8A CN202111175992A CN113968204A CN 113968204 A CN113968204 A CN 113968204A CN 202111175992 A CN202111175992 A CN 202111175992A CN 113968204 A CN113968204 A CN 113968204A
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- braking
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
- B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
- B60T8/38—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition including valve means of the relay or driver controlled type
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/18—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to vehicle weight or load, e.g. load distribution
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
- B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
- B60T8/36—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition including a pilot valve responding to an electromagnetic force
- B60T8/3615—Electromagnetic valves specially adapted for anti-lock brake and traction control systems
- B60T8/362—Electromagnetic valves specially adapted for anti-lock brake and traction control systems in pneumatic systems
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Fluid Mechanics (AREA)
- Electromagnetism (AREA)
- Regulating Braking Force (AREA)
Abstract
The invention relates to the technical field of brake systems, in particular to an electric control auxiliary brake system of an ABS (anti-lock brake system) relay valve; the pneumatic brake device comprises an upper cover, an upper body, a middle body, a second air inlet, a lower body, a lower cover, an air control unit, a main valve, a first brake cavity, a second brake cavity, a third brake cavity, a fourth brake cavity, a brake part and a piston cylinder; when gas enters the main valve through the gas inlet pipe at the upper end of the upper cover, the gas enters the first brake cavity firstly, the gas in the first brake cavity sequentially enters the second brake cavity through the gas circuit on the electromagnetic valve, the third brake cavity and the fourth brake cavity, when the gas is in the first brake cavity, the gas extrudes the brake piece in the first brake cavity, the gas enters the second brake cavity, the gas in the second brake cavity continuously extrudes the brake piece, the gas enters the third brake cavity, the third brake cavity continuously extrudes the brake piece on the basis of the first brake cavity and the second brake cavity, and the brake efficiency of the brake piece is further improved.
Description
Technical Field
The invention relates to the technical field of brake systems, in particular to an electric control auxiliary brake system of an ABS (anti-lock brake system) relay valve.
Background
The automobile braking system refers to a series of special devices which apply certain force to certain parts (mainly wheels) of an automobile so as to brake the parts to a certain degree forcibly; the braking system has the following functions: the running automobile is forced to decelerate or even stop according to the requirement of a driver; stably parking a stopped vehicle under various road conditions including on a slope; the speed of the vehicle running on the downhill is kept stable.
At present, the running speed of a vehicle is higher and higher, the requirement on a brake system is higher and higher, the response speed of the brake system is required to be high, the brake system also needs to have linearity and difficult locking, and a certain braking force needs to be provided when a control gas circuit and a pipeline suddenly break down; the conventional relay valve cannot identify light and heavy vehicles in the braking process, different braking force is applied to the vehicles, the insufficient braking force of the heavy vehicles is easily caused, the braking time is prolonged, the braking distance is increased, and the phenomena of empty vehicles or light vehicles locking are caused. And when the electric control relay valve breaks down, the electric signal cannot respond, display or prompt, so that the pneumatic line control brake system fails to work, and traffic accidents are caused.
In view of this, the invention provides an electric control auxiliary braking system of an ABS relay valve, which solves the above problems.
Disclosure of Invention
In order to make up for the defects of the prior art, the problems that the prior relay valve in the prior art cannot identify light and heavy vehicles in the braking process, different braking force is applied to the vehicles, the heavy vehicle braking force is insufficient, the braking time is prolonged, the braking distance is increased, and the phenomena of empty vehicles or light vehicle locking are easily caused are solved; the invention provides an electric control auxiliary braking system of an ABS (anti-lock brake system) relay valve.
The technical scheme adopted by the invention for solving the technical problems is as follows: an electric control auxiliary braking system of an ABS relay valve comprises an upper cover, an upper body, a middle body, a lower body and a lower cover; upper cover and upper part of the body upper end threaded connection, the lower part of the body and well body lower extreme spiro union, the lower cover passes through the jump ring and is connected with the lower part of the body, include:
the gas control unit is positioned inside the relay valve and used for controlling the circulation of gas inside the relay valve;
the main valve is positioned inside the relay valve and used for controlling the connection or disconnection of an air passage inside the air control unit;
a braking member located within said main valve, gas within said main valve being used to control the braking member to apply braking.
The electromagnetic valves are positioned inside the upper body, the gas paths on the electromagnetic valves are communicated with the gas control unit, the number of the electromagnetic valves is two, and the electromagnetic valves are connected with the sensing assembly;
the pressure regulating device, pressure regulating device quantity is two just pressure regulating device is located well internal portion, the pressure regulating device upper end pass through the gas circuit with the solenoid valve intercommunication, the pressure regulating device with No. two air inlets of well body one side intercommunication.
Preferably, the main valve includes:
a first brake chamber between the upper cover and the upper body;
the second brake cavity is positioned at the lower end of the upper body;
a third brake cavity, wherein the third brake cavity is positioned at the lower end of the second brake cavity, and the first brake cavity and the second brake cavity are separated by the brake element;
the fourth brake cavity is positioned below the third brake cavity and is separated from the third brake cavity through a diaphragm, and an air outlet is formed in the left side of the fourth brake cavity;
the first brake cavity, the second brake cavity, the third brake cavity and the fourth brake cavity are communicated through air passages on the side faces of the electromagnetic valves.
Preferably, the braking member includes:
the piston cylinder is positioned below the fourth brake cavity, the upper end of the piston cylinder is fixedly connected with a first spring, and an air hole is formed in the outer ring of the piston cylinder;
a connecting rod; the connecting rod is located inside the main valve, and the connecting rod separates the second brake chamber from the third brake chamber; the upper end of the connecting rod is positioned in the first braking cavity, the lower end of the connecting rod is positioned in the piston cylinder, and the connecting rod is connected with the first spring;
the valve cylinder is positioned inside the piston cylinder, an exhaust hole is formed in the bottom of the valve cylinder, an auxiliary unit is arranged at the bottom of the valve cylinder, and a second spring is sleeved at the upper end of the valve cylinder;
the valve body is connected in the valve barrel in a sliding mode, the upper end of the valve body is fixedly connected with the lower end of the connecting rod, and the valve body is connected with the second spring; when the valve body moves downwards, the fourth brake cavity is communicated with the interior of the piston cylinder.
Preferably, the auxiliary unit includes: the valve comprises an air bag, an L-shaped groove, a through hole and an elastic rubber sheet, wherein the air bag is arranged at the bottom of the valve barrel, the L-shaped groove is formed in the valve barrel, and one end of the L-shaped groove is communicated with the air bag; the through-hole is seted up L shape inslot wall, just the through-hole makes L shape inslot and external intercommunication, the elastic rubber piece links firmly inside the through-hole.
Preferably, the side wall of the valve body is uniformly provided with a first groove.
Preferably, the first groove is arranged with a spherical inner wall.
Preferably, the cross section of each through hole is a right trapezoid, the right-angle side of each right trapezoid is positioned at the upper end of the through hole, an iron ball is arranged in each through hole, and the iron ball can be blocked by the through holes and cannot enter the inside of the L-shaped groove.
Preferably, the pressure regulating device comprises a chute, a third spring and a sliding block; the spout is seted up in the internal portion of midbody, the spout communicates with No. two air inlets, No. three spring settings are in inside the spout, the slider with No. three spring link firmly just slider sliding connection is in the spout.
Preferably, the solenoid valve is connected in series with the sensing member.
Preferably, the sensing member is arranged on the vehicle body and used for detecting the load of the vehicle body; the weight sensing assembly comprises an insulating fixed support, a pressing rod and a weight sensing switch, the pressing rod is connected in the insulating fixed support in a sliding mode through a spring, the weight sensing switch is located in the insulating fixed support, and when the pressing rod moves downwards, the pressing rod is sequentially contacted with the weight sensing switch.
The invention has the following beneficial effects:
1. the invention relates to an electric control auxiliary braking system of an ABS relay valve, which is characterized in that a first braking cavity, a second braking cavity, a third braking cavity and a fourth braking cavity are arranged; when gas enters the main valve through the gas inlet pipe at the upper end of the upper cover, the gas enters the first brake cavity firstly, the gas in the first brake cavity sequentially enters the second brake cavity through the gas circuit on the electromagnetic valve, the third brake cavity and the fourth brake cavity, when the gas is in the first brake cavity, the gas extrudes the brake piece in the first brake cavity, the gas enters the second brake cavity, the gas in the second brake cavity continuously extrudes the brake piece, the gas enters the third brake cavity, the third brake cavity continuously extrudes the brake piece on the basis of the first brake cavity and the second brake cavity, and the brake efficiency of the brake piece is further improved.
2. The invention relates to an electric control auxiliary braking system of an ABS (anti-lock brake system) relay valve, which is characterized in that a pressure regulating device, a chute, a third spring and a slide block are arranged; when gaseous entering pressure regulating device, it is gaseous to extrude the slider, the slider is extruded and slides to the spout is inside, when the slider is not carrying out the shutoff to the gas circuit on the solenoid valve, it is gaseous through intake pipe and spout entering solenoid valve in, when the gaseous stopping of No. two introductions, the slider is reset by No. three spring extrusions, through the atmospheric pressure size of the interior air admission of No. two air intakes of control, can be used to control the slider to the opening size of gas circuit on the solenoid valve, thereby control gaseous how much of getting into the inside gas of solenoid valve, thereby it is controllable to make braking effect.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a cross-sectional view of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is an enlarged view of a portion of FIG. 1 at B;
FIG. 4 is an enlarged view of a portion of FIG. 1 at C;
FIG. 5 is a structural view of a weight sensing assembly of the present invention;
FIG. 6 is a circuit diagram of the present invention;
in the figure; the air-pressure-regulating valve comprises an upper cover 1, an upper body 11, a middle body 12, a second air inlet 121, a lower body 13, a lower cover 14, an air-control unit 2, a main valve 3, a first brake cavity 31, a second brake cavity 32, a third brake cavity 33, a fourth brake cavity 34, a brake part 4, a piston cylinder 41, a first spring 421, a connecting rod 42, a valve cylinder 43, a second spring 431, a valve body 44, a first groove 45, an iron ball 46, an auxiliary unit 5, an air bag 51, an L-shaped groove 52, a through hole 53, an elastic rubber sheet 54, an electromagnetic valve 6, a pressure-regulating device 7, a sliding groove 71, a third spring 72, a sliding block 73, a weight-sensing component 8, an insulating fixing support 81, a pressure rod 82 and a weight-sensing switch 83.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1-6;
an electric control auxiliary braking system of an ABS relay valve comprises an upper cover 1, an upper body 11, a middle body 12, a lower body 13 and a lower cover 14; upper cover 1 and 11 upper ends threaded connection of upper part of the body, lower part of the body 13 and the 12 lower extreme spiro union of well body, lower cover 14 passes through the jump ring and is connected with lower part of the body 13, include:
the gas control unit 2 is positioned inside the relay valve, and the gas control unit 2 is used for controlling the circulation of gas inside the relay valve;
the main valve 3 is positioned inside the relay valve, and the main valve 3 is used for controlling the connection or disconnection of an air passage inside the air control unit 2;
the braking member 4 is positioned inside the main valve 3, gas inside the main valve 3 is used for controlling the braking member 4 to brake, and an auxiliary unit 5 is arranged at the lower end of the braking member 4, and the auxiliary unit 5 is used for assisting the relay valve to brake.
The electromagnetic valves 6 are positioned in the upper body 11, the air passages on the electromagnetic valves 6 are communicated with the air control unit 2, the number of the electromagnetic valves 6 is two, and the electromagnetic valves 6 are connected with the sensing assembly 8 in series;
the number of the pressure regulating devices 7 is two, the pressure regulating devices 7 are positioned in the middle body 12, the pressure regulating devices 7 are communicated with the electromagnetic valve 6 through air passages, and the pressure regulating devices 7 are communicated with a second air inlet 121 on one side of the middle body 12;
during the use, when electrical system normally worked, divide into three kinds of states again according to the difference of on-vehicle weight: in the first state, when the weight of the brake pedal does not reach 30% of the full load weight, the sensing component 8 is not switched on, the two electromagnetic valves 6 are not switched on with the brake lamp circuit, when a driver steps on the brake pedal, gas enters the main valve 3 through the gas supply pipe on the upper cover 1, the gas acts on the brake component 4, and the gas enters the brake gas chamber through the brake component 4 and the gas control unit 2, so that the aim of braking is fulfilled; in the second state, when the trailer is loaded with 30% -70% of full load, the weight sensing assemblies 8 are communicated, one of the electromagnetic valves 6 is communicated, the brake pedal is used, the communicated electromagnetic valve 6 starts to work, the upper end of the communicated electromagnetic valve 6 is closed, the lower end of the communicated electromagnetic valve 6 is opened, gas passes through the pressure regulating device 7 through the second gas inlet 121, enters the communicated electromagnetic valve 6, enters the main valve 3 through the side gas path of the communicated electromagnetic valve 6, the gas entering the main valve 3 brakes the braking piece 4, then passes through the gas control unit 2, enters the brake chamber for braking, and after about 0.4 second, the control gas enters the main valve 3 through the upper end gas inlet pipe of the upper cover 1, and because one of the electromagnetic valves 6 does not work, the upper end of the non-working electromagnetic valve 6 is opened, the lower end gas enters the non-working electromagnetic valve 6 from the upper end of the non-working electromagnetic valve 6, and enters the main valve 3 through the side gas path of the non-working electromagnetic valve 6, the gas entering the main valve 3 continuously applies pressure to the braking part 4 to increase the braking force, and the braking effect is better because the gas in the main valve 3 is high-pressure gas obtained after the pressure of the gas storage cylinder is adjusted, and the braking pressure is higher when the two electromagnetic valves are not operated; when the trailer is loaded with more than 70% of full load, the sensing assembly 8 is switched on, the two electromagnetic valves 6 are simultaneously communicated, when the brake pedal is stepped, the two electromagnetic valves 6 simultaneously work, the upper ends of the valve cores of the electromagnetic valves 6 are closed, the lower ends of the valve cores of the electromagnetic valves 6 are opened, gas in the gas storage cylinder passes through the pressure regulating device 7 through the gas inlet and simultaneously enters the electromagnetic valves 6 and enters the main valve 3 through the side gas circuit, the gas in the main valve 3 excessively extrudes the braking member 4 to brake the vehicle, high-pressure gas in the gas storage cylinder enters the main valve 3 through the second gas inlet 121 and flows to the brake chamber through the gas control unit 2 to brake, the control gas enters the main valve 3 through the opening in the upper end of the upper cover 1 after about 0.4 second, the gas in the main valve 3 continuously pushes the braking member 4 to brake, the braking force is greatly increased, and the high-pressure gas after the pressure regulation of the gas storage cylinder, compared with the work of one electromagnetic valve, the work of the other electromagnetic valve is avoided, the braking effect is better, and the good braking effect can be achieved on the heavy vehicle.
As an embodiment of the present invention, the main valve 3 includes:
a first braking chamber 31, the first braking chamber 31 being located between the upper cover 1 and the upper body 11;
a second braking chamber 32, wherein the second braking chamber 32 is positioned at the lower end of the upper body 11;
a third brake chamber 33, wherein the third brake chamber 33 is positioned at the lower end of the second brake chamber 32, and the first brake chamber 31 and the second brake chamber 32 are separated by the brake member 4;
the fourth brake cavity 34 is positioned below the third brake cavity 33 and is separated from the third brake cavity 33 by a diaphragm, and an air outlet is formed in the left side of the fourth brake cavity 34;
the first brake cavity 31, the second brake cavity 32, the third brake cavity 33 and the fourth brake cavity 34 are communicated through an air passage on the side surface of the electromagnetic valve 6;
when the pneumatic brake is used, when air enters the main valve 3 through the air inlet pipe at the upper end of the upper cover 1, the air enters the first brake cavity 31 at first, the air in the first brake cavity 31 enters the second brake cavity 32, the third brake cavity 33 and the fourth brake cavity 34 through the air passage on the electromagnetic valve 6 in sequence, when the air is in the first brake cavity 31, the air extrudes the brake piece 4 in the first brake cavity 31, the air enters the second brake cavity 32, the air in the second brake cavity 32 continuously extrudes the brake piece 4, the air enters the third brake cavity 33, and the third brake cavity 33 continuously extrudes the brake piece 4 on the basis of the first brake cavity 31 and the second brake cavity 32, so that the braking efficiency of the brake piece 4 is improved.
As an embodiment of the present invention, the braking member 4 includes:
the piston cylinder 41 is positioned below the fourth brake cavity 34, the upper end of the piston cylinder 41 is fixedly connected with a first spring 421, and an air hole is formed in the outer ring of the piston cylinder 41;
a connecting rod 42; said connecting rod 42 is located inside said main valve 3, said connecting rod 42 separating the second braking chamber 32 from the third braking chamber 33; the upper end of the connecting rod 42 is located in the first brake chamber 31, the lower end of the connecting rod 42 is located in the piston cylinder 41, and the connecting rod 42 is connected with the first spring 421;
the valve cylinder 43 is positioned inside the piston cylinder 41, the bottom of the valve cylinder 43 is provided with an exhaust hole, the bottom of the valve cylinder 43 is provided with an auxiliary unit 5, and the upper end of the valve cylinder 43 is sleeved with a second spring 431;
the valve body 44 is slidably connected in the valve cylinder 43, the upper end of the valve body 44 is fixedly connected with the lower end of the connecting rod 42, and the valve body 44 is connected with the second spring 431; when the valve body 44 moves downward, the fourth brake chamber 34 communicates with the interior of the piston cylinder 41;
when the gas enters the first brake chamber 31, the gas extrudes the upper end of the connecting rod 42 in the first brake chamber 31, when the connecting rod 42 moves downwards, the connecting rod 42 pushes the valve body 44 downwards to move towards the inside of the valve cylinder 43, when the valve body 44 moves downwards, the fourth brake chamber 34 is communicated with the inside of the piston cylinder 41, the gas entering the second gas inlet 121 enters the inside of the piston cylinder 41 through the gas hole on the outer side of the piston cylinder 41, enters the inside of the fourth brake chamber 34 along with the gas entering, and then the gas in the fourth brake chamber 34 enters the brake chamber through the gas outlet, so that the brake is realized, when a driver lifts off a brake pedal, the gas in the first brake chamber 31, the second brake chamber 32 and the third brake chamber 33 is exhausted from the gas pipe on the upper end of the upper cover 1, the connecting rod 42 pushes the connecting rod 42 to move upwards under the pressure of the gas in the fourth brake chamber 34 and the elastic force of the first spring 421, the valve body 44 moves upward under the elastic force of the second spring 431, the valve body 44 moves upward to close the piston cylinder 41, the connecting rod 42 continues to move upward, the connecting rod 42 is separated from the valve body 44, and the gas in the fourth brake chamber 34 flows out from the gas pipe at the lower end of the valve cylinder 43 through the cavity inside the valve body 44, thereby completing braking.
As a specific embodiment of the present invention, the auxiliary unit 5 includes: an air bag 51, an L-shaped groove 52, a through hole 53 and an elastic rubber sheet 54, wherein the air bag 51 is arranged at the bottom of the valve cylinder 43, the L-shaped groove 52 is arranged inside the valve cylinder 43, and one end of the L-shaped groove 52 is communicated with the air bag 51; the through hole 53 is formed in the inner wall of the L-shaped groove 52, the L-shaped groove 52 is communicated with the outside through the through hole 53, and the elastic rubber sheet 54 is fixedly connected inside the through hole 53;
when the valve body 44 moves downwards, the valve body 44 moves towards the bottom of the valve cylinder 43, the valve body 44 extrudes the air bag 51, the air bag 51 is extruded, air in the air bag 51 enters the L-shaped groove 52, the air flows outwards from the through hole 53 in the side wall of the L-shaped groove 52, the through hole 53 is sealed by the elastic rubber sheet 54, the elastic rubber sheet 54 is expanded by the air pressure in the L-shaped groove 52, the expanded elastic rubber sheet 54 extrudes the outer ring of the valve body 44 when the valve body 44 moves downwards in the valve cylinder 43, the valve body 44 is extruded by the elastic rubber sheet 54, the friction force generated when the valve body 44 moves upwards is increased, the valve body 44 is difficult to move upwards, and the braking effect of the valve body 44 and the valve cylinder 43 is increased.
As a specific embodiment of the present invention, the side wall of the valve body 44 is uniformly provided with a first groove 45;
the first groove 45 is arranged with a spherical inner wall;
the cross section of each through hole 53 is a right trapezoid, the right-angle side of each right trapezoid is positioned at the upper end of each through hole 53, an iron ball 46 is arranged in each through hole 53, and each iron ball 46 is blocked by each through hole 53 and cannot enter the L-shaped groove 52;
when the valve body 44 moves downwards, the valve body 44 extrudes the air bag 51 to expand the elastic rubber sheet 54 in the L-shaped groove 52, and the expanded elastic rubber sheet 54 enters the first groove 45, so that the contact area between the elastic rubber sheet 54 and the outer ring of the valve body 44 is increased, the friction force between the elastic rubber sheet 54 and the valve body 44 is increased, and the braking effect of the valve body 44 is further improved; by arranging the inner wall of the first groove 45 as a spherical surface, after the elastic rubber sheet 54 enters the first groove 45, the inner part of the first groove 45 is arranged as a spherical surface, thereby preventing the elastic rubber piece 54 from being worn by the edge of the first groove 45, thereby causing breakage of the elastic rubber piece 54, and by making the through hole 53 in a right trapezoid shape, an iron ball 46 is arranged in the through hole 53, when the valve body 44 extrudes the air bag 51, the air in the air bag 51 enters the L-shaped groove 52, the elastic rubber sheet 54 expands, the iron ball 46 rolls downwards under the action of the inclined edge of the through hole 53, so that after the elastic rubber sheet 54 is expanded and enters the first groove 45, the iron ball 46 rolls into the first groove 45, when the valve body 44 is moved upward, the iron ball 46 blocks the valve body 44, and the frictional force when the valve body 44 is moved upward is increased, thereby improving the braking effect of the valve body 44.
As a specific embodiment of the present invention, the pressure regulating device 7 includes a chute 71, a third spring 72, and a slider 73; the sliding groove 71 is formed in the middle body 12, the sliding groove 71 is communicated with the second air inlet 121, the third spring 72 is arranged in the sliding groove 71, the sliding block 73 is fixedly connected with the third spring 72, and the sliding block 73 is connected in the sliding groove 71 in a sliding manner;
during the use, when gaseous through No. two air inlets 121 entering solenoid valve 6, the gas that gets into through No. two air inlets 121 need pass through regulator 7, when gaseous entering regulator 7, it is gaseous to the slider 73 extrusion, slider 73 is extrudeed and is slided to spout 71 inside, when slider 73 is not when carrying out the shutoff to the gas circuit on solenoid valve 6, gaseous through intake pipe and spout 71 entering solenoid valve 6 in, when the gaseous stop of No. two air inlets 121 is led in, slider 73 is reset by the extrusion of No. three spring 72, the atmospheric pressure size of admitting air in through No. two air inlets 121 of control, can be used to control the opening size of slider 73 to gas circuit on the solenoid valve 6, thereby control gaseous how much of getting into the inside gas of solenoid valve 6, thereby make braking effect controllable.
As a specific embodiment of the present invention, the electromagnetic valve 6 is connected in series with the inductive component 8;
the weight sensing assembly 8 is arranged on the vehicle body, and the weight sensing assembly 8 is used for detecting the load of the vehicle body; the weight sensing assembly 8 comprises an insulating fixed support 81, a pressure lever 82 and a weight sensing switch 83, wherein the pressure lever 82 is connected in the insulating fixed support 81 in a sliding manner through a spring, the weight sensing switch 83 is positioned in the insulating fixed support 81, and when the pressure lever 82 moves downwards, the pressure lever 82 is sequentially contacted with the weight sensing switch 83;
when the electromagnetic valve is used, the electromagnetic valve 6 is connected with the weight sensing assembly 8 in series, so that the weight sensing assembly 8 can react quickly when the electromagnetic valve 6 works, and further the electromagnetic valve 6 is matched with the weight sensing assembly 8, so that the braking efficiency is high, the quick reaction can be realized, and the braking effect is improved; when the electromagnetic valve 6 and the weight sensing assembly 8 are started, the pressure rod 82 moves towards the inside of the lower insulating fixed support 81, when the pressure rod 82 moves downwards, the pressure rod 82 sequentially contacts with the two weight sensing switches 83, the movement of the two weight sensing switches 83 is controlled by controlling the downward movement distance of the pressure rod 82, so that the load difference of the vehicle is detected, and the braking efficiency of the electric control auxiliary braking of the relay valve is increased by controlling the weight sensing switches 83.
The specific working process is as follows:
when the electric control system works normally, the electric control system is divided into three states according to the difference of vehicle-mounted weight: in the first state, when the weight of the brake pedal does not reach 30% of the full load weight, the sensing component 8 is not switched on, the two electromagnetic valves 6 are not switched on with the brake lamp circuit, when a driver steps on the brake pedal, gas enters the main valve 3 through the gas supply pipe on the upper cover 1, the gas acts on the brake component 4, and the gas enters the brake gas chamber through the brake component 4 and the gas control unit 2, so that the aim of braking is fulfilled; in the second state, when the trailer is loaded with cargo 30% -70% of full load, the weight sensing assemblies 8 are communicated, one of the electromagnetic valves 6 is communicated, the brake pedal is used, the communicated electromagnetic valve 6 starts to work, the upper end of the communicated electromagnetic valve 6 is closed, the lower end of the communicated electromagnetic valve 6 is opened, gas passes through the pressure regulating device 7 through the second gas inlet 121, enters the communicated electromagnetic valve 6, enters the main valve 3 through the side gas path of the communicated electromagnetic valve 6, the gas entering the main valve 3 brakes the braking piece 4, then passes through the gas control unit 2, enters the brake chamber for braking, after about 0.4 second, the control gas enters the main valve 3 through the gas inlet pipe at the upper end of the upper cover 1, and because one of the electromagnetic valves 6 does not work, the upper end of the non-working electromagnetic valve 6 is opened, the gas at the lower end enters the non-working electromagnetic valve 6 from the upper end of the non-working electromagnetic valve 6, the gas enters the main valve 3 through the gas circuit on the side surface of the solenoid valve 6 which does not work, the gas entering the main valve 3 continuously applies pressure to the braking part 4, and the braking force is increased; when the trailer is loaded with more than 70% of full load, the sensing assembly 8 is switched on, the two electromagnetic valves 6 are simultaneously communicated, when the brake pedal is stepped, the two electromagnetic valves 6 simultaneously work, the upper ends of the valve cores of the electromagnetic valves 6 are closed, the lower ends of the valve cores of the electromagnetic valves 6 are opened, gas in the gas storage cylinder passes through the pressure regulating device 7 through the gas inlet and simultaneously enters the electromagnetic valves 6 and enters the main valve 3 through the side gas circuit, the gas in the main valve 3 excessively extrudes the braking member 4 to brake the vehicle, high-pressure gas in the gas storage cylinder enters the main valve 3 through the second gas inlet 121 and flows to the brake chamber through the gas control unit 2 to brake, the control gas enters the main valve 3 through the opening in the upper end of the upper cover 1 after about 0.4 second, the gas in the main valve 3 continuously pushes the braking member 4 to brake, the braking force is greatly increased, and the high-pressure gas after the pressure regulation of the gas storage cylinder, compared with the work of one electromagnetic valve, the work of the other electromagnetic valve is avoided, the braking effect is better, and the good braking effect can be achieved on the heavy vehicle.
Front, back, left, right, up and down are all based on figure 1 in the attached drawings of the specification, according to the standard of the observation angle of a person, the side of the device facing an observer is defined as front, the left side of the observer is defined as left, and the like.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.
Finally, it should be pointed out that: the above examples are only for illustrating the technical solutions of the present invention, and are not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention. All other embodiments obtained by a person skilled in the art without making any inventive step are within the scope of protection of the present invention.
Claims (10)
1. An electronic control auxiliary braking system of an ABS relay valve comprises an upper cover (1), an upper body (11), a middle body (12), a lower body (13) and a lower cover (14); upper cover (1) and upper part of the body (11) upper end threaded connection, lower part of the body (13) and well body (12) lower extreme spiro union, lower cover (14) are connected its characterized in that through jump ring and lower part of the body (13), include:
the gas control unit (2), the gas control unit (2) is positioned inside the relay valve, and the gas control unit (2) is used for controlling the circulation of gas inside the relay valve;
the main valve (3) is positioned inside the relay valve, and the main valve (3) is used for controlling the connection or disconnection of an air passage inside the air control unit (2);
the braking piece (4), the braking piece (4) is located inside the main valve (3), and gas inside the main valve (3) is used for controlling the braking piece (4) to brake.
The electromagnetic valves (6) are positioned in the upper body (11), air passages on the electromagnetic valves (6) are communicated with the air control unit (2), the number of the electromagnetic valves (6) is two, and the electromagnetic valves (6) are connected with the weight sensing assembly (8);
pressure regulating device (7), pressure regulating device (7) quantity be two just pressure regulating device (7) are located inside well body (12), pressure regulating device (7) upper end pass through the gas circuit with solenoid valve (6) intercommunication, pressure regulating device (7) with No. two air inlets (121) of well body (12) one side intercommunication.
2. An ABS relay valve electric control auxiliary brake system according to claim 1, characterized in that: the main valve (3) comprises:
a first braking chamber (31), said first braking chamber (31) being located between said upper cover (1) and said upper body (11);
a second brake chamber (32), the second brake chamber (32) being located at a lower end of the upper body (11);
a third brake chamber (33), wherein the third brake chamber (33) is positioned at the lower end of the second brake chamber (32), and the first brake chamber (31) and the second brake chamber (32) are separated by the brake member (4);
the fourth brake cavity (34) is positioned below the third brake cavity (33) and is separated from the third brake cavity (33) through a diaphragm, and an air outlet is formed in the left side of the fourth brake cavity (34);
the first brake cavity (31), the second brake cavity (32), the third brake cavity (33) and the fourth brake cavity (34) are communicated through air passages on the side face of the electromagnetic valve (6).
3. An ABS relay valve electric control auxiliary brake system according to claim 1, characterized in that: the braking member (4) comprises:
the piston cylinder (41) is positioned below the fourth brake cavity (34), the upper end of the piston cylinder (41) is fixedly connected with a first spring (421), and an air hole is formed in the outer ring of the piston cylinder (41);
a connecting rod (42); the connecting rod (42) being located inside the main valve (3), the connecting rod (42) separating the second brake chamber (32) and the third brake chamber (33); the upper end of the connecting rod (42) is positioned in the first brake cavity (31), the lower end of the connecting rod is positioned in the piston cylinder (41), and the connecting rod (42) is connected with the first spring (421);
the valve cylinder (43) is positioned inside the piston cylinder (41), the bottom of the valve cylinder (43) is provided with an exhaust hole, the bottom of the valve cylinder (43) is provided with an auxiliary unit (5), and the upper end of the valve cylinder (43) is sleeved with a second spring (431);
the valve body (44) is connected in the valve barrel (43) in a sliding mode, the upper end of the valve body (44) is fixedly connected with the lower end of the connecting rod (42), and the valve body (44) is connected with the second spring (431); when the valve body (44) moves downward, the fourth brake chamber (34) communicates with the interior of the piston cylinder (41).
4. An ABS relay valve electric control auxiliary brake system according to claim 3, characterized in that: the auxiliary unit (5) comprises: the valve cylinder comprises an air bag (51), an L-shaped groove (52), a through hole (53) and an elastic rubber sheet (54), wherein the air bag (51) is arranged at the bottom of the valve cylinder (43), the L-shaped groove (52) is formed in the valve cylinder (43), and one end of the L-shaped groove (52) is communicated with the air bag (51); the through hole (53) is formed in the inner wall of the L-shaped groove (52), the through hole (53) enables the L-shaped groove (52) to be communicated with the outside, and the elastic rubber sheet (54) is fixedly connected inside the through hole (53).
5. An ABS relay valve electric control auxiliary brake system according to claim 4, characterized in that: a first groove (45) is uniformly formed in the side wall of the valve body (44).
6. An ABS relay valve electric control auxiliary brake system according to claim 5, characterized in that: the first groove (45) is arranged with a spherical inner wall.
7. An ABS relay valve electric control auxiliary brake system according to claim 6, characterized in that: the cross section of each through hole (53) is a right trapezoid, the right-angle side of each right trapezoid is located at the upper end of the through hole (53), an iron ball (46) is arranged in each through hole (53), and each iron ball (46) can be blocked by the through hole (53) and cannot enter the inside of the L-shaped groove (52).
8. An ABS relay valve electric control auxiliary brake system according to claim 1, characterized in that: the pressure regulating device (7) comprises a sliding groove (71), a third spring (72) and a sliding block (73); the utility model discloses a slide block, including middle part of the body (12), spout (71), No. two air inlets (121), No. three spring (72) set up inside spout (71), slider (73) with No. three spring (72) link firmly just slider (73) sliding connection be in spout (71).
9. An ABS relay valve electric control auxiliary brake system according to claim 8, characterized in that: the electromagnetic valve (6) is connected with the weight sensing assembly (8) in series.
10. An ABS relay valve electric control auxiliary brake system according to claim 8, characterized in that: the weight sensing assembly (8) is arranged on the vehicle body, and the weight sensing assembly (8) is used for detecting the load of the vehicle body; sense heavy subassembly (8) including insulating fixed bolster (81), depression bar (82) and sense heavy switch (83), depression bar (82) through spring sliding connection in insulating fixed bolster (81), sense heavy switch (83) are located in insulating fixed bolster (81), when depression bar (82) downstream, depression bar (82) contact with sense heavy switch (83) in proper order.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111175992.8A CN113968204B (en) | 2021-10-09 | 2021-10-09 | Automatically controlled auxiliary braking system of ABS relay valve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111175992.8A CN113968204B (en) | 2021-10-09 | 2021-10-09 | Automatically controlled auxiliary braking system of ABS relay valve |
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| CN113968204A true CN113968204A (en) | 2022-01-25 |
| CN113968204B CN113968204B (en) | 2022-11-04 |
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| CN202111175992.8A Active CN113968204B (en) | 2021-10-09 | 2021-10-09 | Automatically controlled auxiliary braking system of ABS relay valve |
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Citations (7)
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|---|---|---|---|---|
| GB1506005A (en) * | 1974-06-17 | 1978-04-05 | Gen Signal Corp | Brake system for a light rail vehicle |
| US6206481B1 (en) * | 1996-03-09 | 2001-03-27 | Knorr-Bremse | Trailer control valve for a compressed air brake system for motor vehicles |
| JP2002145033A (en) * | 2000-11-13 | 2002-05-22 | Komatsu Ltd | Vehicular braking device |
| US6431208B1 (en) * | 2000-09-01 | 2002-08-13 | Delphi Technologies Inc. | Combined full function ABS valve |
| CN101372223A (en) * | 2007-08-20 | 2009-02-25 | 淄博龙达金山汽车部件有限公司 | Electric-controlled load sensing proportion valve |
| CN208585232U (en) * | 2018-03-22 | 2019-03-08 | 瑞立集团瑞安汽车零部件有限公司 | A kind of trailer relay valve |
| CN113500990A (en) * | 2021-08-26 | 2021-10-15 | 山东康健汽车配件科技股份有限公司 | Electric control auxiliary braking system of relay valve |
-
2021
- 2021-10-09 CN CN202111175992.8A patent/CN113968204B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1506005A (en) * | 1974-06-17 | 1978-04-05 | Gen Signal Corp | Brake system for a light rail vehicle |
| US6206481B1 (en) * | 1996-03-09 | 2001-03-27 | Knorr-Bremse | Trailer control valve for a compressed air brake system for motor vehicles |
| US6431208B1 (en) * | 2000-09-01 | 2002-08-13 | Delphi Technologies Inc. | Combined full function ABS valve |
| JP2002145033A (en) * | 2000-11-13 | 2002-05-22 | Komatsu Ltd | Vehicular braking device |
| CN101372223A (en) * | 2007-08-20 | 2009-02-25 | 淄博龙达金山汽车部件有限公司 | Electric-controlled load sensing proportion valve |
| CN208585232U (en) * | 2018-03-22 | 2019-03-08 | 瑞立集团瑞安汽车零部件有限公司 | A kind of trailer relay valve |
| CN113500990A (en) * | 2021-08-26 | 2021-10-15 | 山东康健汽车配件科技股份有限公司 | Electric control auxiliary braking system of relay valve |
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|---|---|
| CN113968204B (en) | 2022-11-04 |
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Address after: 272000 No.8 Huayu Road, Quanpu Industrial Park, Liangshan County, Jining City, Shandong Province Patentee after: Shandong Kangjian Automobile Technology Co.,Ltd. Address before: 272613 No. 8, Huayu Road, industrial park, quanpu Town, Liangshan County, Jining City, Shandong Province Patentee before: SHANDONG KANGJIAN AUTO PARTS TECHNOLOGY Co.,Ltd. |
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Denomination of invention: An ABS relay valve electronic control assisted braking system Effective date of registration: 20230328 Granted publication date: 20221104 Pledgee: Shandong Liangshan Rural Commercial Bank Co.,Ltd. Pledgor: Shandong Kangjian Automobile Technology Co.,Ltd. Registration number: Y2023980036179 |
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