CN105711577B - A kind of braking automobile auxiliary hydraulic device and separating valve - Google Patents
A kind of braking automobile auxiliary hydraulic device and separating valve Download PDFInfo
- Publication number
- CN105711577B CN105711577B CN201610270429.1A CN201610270429A CN105711577B CN 105711577 B CN105711577 B CN 105711577B CN 201610270429 A CN201610270429 A CN 201610270429A CN 105711577 B CN105711577 B CN 105711577B
- Authority
- CN
- China
- Prior art keywords
- telescopic rod
- wheel cylinder
- valve
- oil
- push
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- 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
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/04—Arrangements of piping, valves in the piping, e.g. cut-off valves, couplings or air hoses
-
- 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
- B60T15/00—Construction arrangement, or operation of valves incorporated in power brake systems and not covered by groups B60T11/00 or B60T13/00
-
- 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
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/08—Brake cylinders other than ultimate actuators
-
- 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
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/08—Brake cylinders other than ultimate actuators
- B60T17/088—Mounting arrangements
-
- 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
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/18—Safety devices; Monitoring
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The present invention provides a kind of braking automobile auxiliary hydraulic device and separating valves, belong to brake gear technical field, including high-pressure pipeline, the first oil return pipe, three-way change-over valve, separating valve, high pressure trapped fuel bucket and wheel cylinder；High-pressure pipeline is provided with delivery valve；High pressure trapped fuel bucket includes fixed seat, hydraulic cylinder, telescopic rod and compressed spring；The both ends of first oil return pipe are connect with the oil return opening of the fuel tank of automobile braking device and three-way change-over valve respectively；The oil inlet of three-way change-over valve is connect with the oil outlet of the oil inlet of hydraulic cylinder and high-pressure pipeline respectively by connecting tube, and the oil inlet of high-pressure pipeline is connect by hydraulic pump with fuel tank；The oil outlet of three-way change-over valve and the oil inlet of separating valve connect, and the oil outlet of separating valve is connected with corresponding wheel cylinder.The braking automobile auxiliary hydraulic device can not only complete parking braking work；Moreover, after automobile braking device is out of control, still controllable wheel cylinder works and completes brake.
Description
Technical field
The present invention relates to brake gear technical fields, in particular to a kind of braking automobile auxiliary hydraulic device and divide
Fuel tap.
Background technology
Automobile is deep into daily life more and more widely as a kind of traffic and cargo conveyance
In；Meanwhile a kind of guarantee of the automobile braking device as vehicle safety travel, it is indispensable.
But after automobile braking device is out of control, the occurrence of coping with this without other safeguards, by serious shadow
Ring the life security and cargo transportation security of passengers inside the car.
Invention content
To solve the above-mentioned problems, the purpose of the present invention is to provide a kind of braking automobile auxiliary hydraulic device and point oil
Valve, when encountering the situation of automobile braking device failure, wheel cylinder can be controlled and complete to brake, support personnel and goods
Object safety.
The technical solution adopted in the present invention is：
A kind of braking automobile auxiliary hydraulic device comprising high-pressure pipeline, the first oil return pipe, three-way change-over valve, point oil
Valve, high pressure trapped fuel bucket and wheel cylinder；The high-pressure pipeline is provided with delivery valve；
The high pressure trapped fuel bucket includes fixed seat, hydraulic cylinder, telescopic rod and compressed spring；The fixed seat is provided with gear
Plate, the baffle plate setting have through-hole；The hydraulic cylinder is fixedly installed in the fixed seat；One end of the telescopic rod and institute
Hydraulic cylinder connection is stated, the other end of the telescopic rod is located at the through hole, and coordinates with the via clearance；It is described flexible
The lateral wall of bar is provided with block, and the compressed spring is sheathed on the outside of the telescopic rod, and is located at the baffle and the gear
Between block；One end of the compressed spring resists the baffle, and the other end of the compressed spring resists the block；
The both ends of first oil return pipe oil return opening with the fuel tank of automobile braking device and the three-way change-over valve respectively
Connection；The oil inlet of the three-way change-over valve by connecting tube respectively with the oil inlet of the hydraulic cylinder and the high pressure oil transportation
The oil outlet of pipe connects, and the oil inlet of the high-pressure pipeline is connect by hydraulic pump with the fuel tank；The three-way change-over valve
Oil outlet connect with the oil inlet of the separating valve, the oil outlet of the separating valve and the corresponding wheel cylinder connect.
As a kind of preferred embodiment of fixed seat, the fixed seat includes the first fixed plate and the second fixed plate, and described the
One fixed plate and second fixed plate are respectively arranged with first baffle and second baffle, and shape is respectively inverted " t " type；It is described
First baffle and the second baffle are in opposite position, and the first baffle is provided with through-hole, and the second baffle is set
It is equipped with mounting hole；The hydraulic cylinder is fixedly connected by mounting hole with the second baffle, one end of the telescopic rod and institute
Hydraulic cylinder connection is stated, the other end of the telescopic rod is located at the through hole of the first baffle.
Wherein it is preferred to which the fixed seat further includes at least three screw rods, the both ends of the screw rod are respectively at described first
Baffle is connected with second baffle, and is fixed by corresponding nut；The screw rod forms fence, and the compressed spring is located at fence
It is interior.
More advantage, the telescopic rod include piston rod and sleeve；One end of the piston rod connects with the hydraulic cylinder
It connects, the other end of the piston rod is provided with circular bead surface；The sleeve is sheathed on the outside of piston rod, and the sleeve is far from described
One end of hydraulic cylinder is provided with through-hole, and forms the anchor ring to match with the circular bead surface, and the circular bead surface resists the ring
Face；The block is set to the sleeve on the outside of the port of one end of the hydraulic cylinder, and is in along sleeve circumferential distribution
Annular.
Further, the separating valve includes valve body and seal chamber；Sealing piston is respectively arranged in the seal chamber, and
It is separated to form first annular seal space room and the second sealed chamber；The first annular seal space room is connected to the oil inlet of the valve body；Institute
It states the second sealed chamber and is provided with oil outlet for connecting the wheel cylinder；The seal chamber and the wheel cylinder are one by one
It is corresponding；It is provided with the resetting spring for resetting the sealing piston in second sealed chamber, the two of the resetting spring
End is connect with the inner wall of the sealing piston and second sealed chamber respectively.
Further, the both ends of the surface of the sealing piston are respectively arranged with the first sealing cup.
Further, the separating valve is one point of four separating valve, and the quantity of the seal chamber of one point of four separating valve is four.
Further, the braking automobile auxiliary hydraulic device further includes the second oil return pipe, air conditioning system for aircraft cabin and pressure
The both ends of sensor, second oil return pipe are connect with the fuel tank and the high-pressure pipeline respectively, and second oil return
Pipe is provided with pressure regulator valve；The pressure sensor is set to the high pressure trapped fuel bucket, and passes through the air conditioning system for aircraft cabin and institute
State pressure regulator valve electrical connection.
Further, the wheel cylinder include protecgulum, it is rear cover, hydraulic telescopic rod, push rod, push-plate, return spring, second close
Strip of paper used for sealing bowl；The protecgulum and rear cover are tightly connected by clamp, and surround a seal operation room；Second sealing cup is set
It is placed in the seal operation room, and is separated to form the first seal operation room and the second seal operation room；One end of the push rod
It is set in first seal operation room, and be fixedly connected with the push-plate；The return spring is sheathed on outside the push rod
Side, and in the first seal operation room, and one end of the return spring resists the push-plate, the return spring it is another
End resists the inner wall of the protecgulum；The telescopic end of the hydraulic telescopic rod is set in second seal operation room, and described
The end face of telescopic end and the stress surface of the push-plate position that be located at the both sides of the second sealing cup opposite；Described
Two sealing cups are affixed with the push-plate, and with push-plate synchronizing moving；The rear cover is provided with stomata, and the stomata with it is described
Second seal operation room is connected to.
Wherein it is preferred to which the end face diameter of the telescopic end is 30-40mm.
Further, the hydraulic telescopic rod includes：Cylinder body, wheel cylinder telescopic rod, telescopic rod return spring, hydraulic cylinder piston and
Telescopic rod sealing ring；The cylinder body is provided with the outlet of wheel cylinder telescopic rod, and the hydraulic cylinder piston is set in the cylinder；It is described
One end of wheel cylinder telescopic rod is connect with the hydraulic cylinder piston, and the other end of the wheel cylinder telescopic rod passes through the wheel cylinder telescopic rod
Outlet is located at outside the cylinder body；The telescopic rod sealing ring is set to wheel cylinder telescopic rod exit；The telescopic rod return
Spring is located in the cylinder body, and is sheathed on outside the wheel cylinder telescopic rod, and one end of the telescopic rod return spring resists institute
Hydraulic cylinder piston is stated, the other end of the telescopic rod return spring is butted on wheel cylinder telescopic rod exit.
Wherein it is preferred to which the hydraulic cylinder piston is provided with third sealing skin on the end face of the cylinder body oil inlet
Bowl.
Further, the one side of second sealing cup towards the push-plate is concave surface, and the concave surface and the push-plate
Match, the push-plate is located in the concave surface.
Further, the wheel cylinder further includes for monitoring the stroke sensor of the push-plate displacement distance, alarm control
Device and alarm processed；The stroke sensor is set to position corresponding with the push-plate in first seal operation room
It sets, and is electrically connected with the alarm by the alarm controller.
The present invention also provides a kind of separating valves comprising：Valve body and seal chamber；It is respectively arranged in the seal chamber
Sealing piston, and it is separated to form first annular seal space room and the second sealed chamber；The first annular seal space room and the valve body into
Hydraulic fluid port is connected to；Second sealed chamber is provided with the oil outlet for connecting the wheel cylinder；The seal chamber with it is described
Wheel cylinder corresponds；The resetting spring for resetting the sealing piston is provided in second sealed chamber, it is described
The both ends of resetting spring are connect with the inner wall of the sealing piston and second sealed chamber respectively.
Above-mentioned three-way change-over valve, pressure regulator valve and delivery valve are the prior art, are not described in detail to its structure, the present invention
It is set to corresponding position with certain connection relation；Telescopic rod forms the machine similar to hydraulic telescopic rod with hydraulic cylinder
Structure.
Beneficial effects of the present invention：
Braking automobile auxiliary hydraulic device and separating valve provided by the present invention, after automobile braking device is out of control, still
Controllable wheel cylinder works and completes brake, has ensured the safety of personnel and cargo.
Description of the drawings
Fig. 1 is the structural schematic diagram of the high pressure trapped fuel bucket described in embodiment 1；
Fig. 2 is the front view of Fig. 1；
Fig. 3 is the left view of Fig. 1；
Fig. 4 is the right view of Fig. 1；
Fig. 5 is the structural schematic diagram of one point of four separating valve described in embodiment 1；
Fig. 6 is the principle schematic of the braking automobile auxiliary hydraulic device described in embodiment 1
Fig. 7 is the sectional view of the high pressure trapped fuel bucket described in embodiment 1；
Fig. 8 is the structural scheme of mechanism of the wheel cylinder described in embodiment 2；
Fig. 9 is the exploded perspective view of Fig. 8；
Figure 10 is the structural schematic diagram of the hydraulic telescopic rod described in embodiment 2；
Figure 11 is the principle schematic of the automobile hydraulic brake gear described in embodiment 2.
In figure label for：
First fixed plate 101, first baffle 102, sleeve 103, compressed spring 104, second baffle 105, block 106, the
Two fixed plates 107, screw rod 108, piston rod 109, hydraulic cylinder 110, hydraulic cylinder oil inlet 111, protecgulum 112, return spring
113, push-plate 114, clamp 115, hydraulic telescopic rod 116, cylinder body oil inlet 117, telescopic end 118, the second sealing cup 119 pushes away
Bar 120, rear cover 121, stomata 122, valve body 123, valve body oil inlet 124, first annular seal space room 125, the second sealed chamber 126,
Resetting spring 127, the second sealed chamber oil outlet 128, the first sealing cup 129, piston 130, first annular seal space room oil inlet
131, third sealing cup 132, hydraulic cylinder piston 133, telescopic rod return spring 134, telescopic rod sealing ring 135.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, below the detailed description of the embodiment of the present invention to providing in the accompanying drawings be not intended to limit it is claimed
The scope of the present invention, but be merely representative of the present invention selected embodiment.Based on the embodiments of the present invention, this field is common
The every other embodiment that technical staff is obtained without creative efforts belongs to the model that the present invention protects
It encloses.
It should be noted that：Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.
Embodiment 1
As shown in Figs 1-4, a kind of braking automobile auxiliary hydraulic device is present embodiments provided comprising high-pressure pipeline,
First oil return pipe, three-way change-over valve, high pressure trapped fuel bucket and wheel cylinder；High-pressure pipeline is provided with delivery valve.
High pressure trapped fuel bucket includes fixed seat, hydraulic cylinder 110, telescopic rod and compressed spring 104.
Fixed seat includes the first fixed plate 101 and the second fixed plate 107, and the first fixed plate 101 and the second fixed plate 107 are divided
It is not provided with first baffle 102 and second baffle 105, shape is respectively inverted " t " type.
First baffle 102 and second baffle 105 are in opposite position, and first baffle 102 is provided with through-hole, second gear
Plate 105 is provided with mounting hole；Hydraulic cylinder 110 is fixedly connected by mounting hole with second baffle 105, one end of telescopic rod and liquid
Cylinder pressure cylinder 110 connects, and the initial position of the other end of telescopic rod is located at the through hole of first baffle 102, and can be outside along through-hole
It stretches out.
The lateral wall of telescopic rod is provided with block 106, and compressed spring 104 is sheathed on the outside of telescopic rod, and is located at first gear
Between plate 102 and block 106, and one end of compressed spring 104 resists the first baffle 102, the other end of compressed spring 104
Resist the block 106.
After oil enters hydraulic cylinder 110, pushes telescopic rod flexible and telescopic rod is stretched out along the axis direction of through-hole, gear
Block 106 is moved with telescopic rod to first baffle 102, so that it is generated elastic deformation to compress compressed spring 104, therefore, is completed
It is oily and pressure to prestore.
When the compressed spring 104 in compressive state is replied, compressed spring 104 pushes block 106 far from first baffle
102, so that telescopic rod is shunk, therefore, by the oil being pre-stored in hydraulic cylinder 110 with certain pressure output.
The both ends of first oil return pipe are connect with the oil return opening of the fuel tank of automobile braking device and three-way change-over valve respectively；Threeway
The oil inlet of switching valve is connect with the oil outlet of hydraulic cylinder oil inlet 111 and high-pressure pipeline respectively by connecting tube, high pressure
The oil inlet of petroleum pipeline is connect by hydraulic pump with fuel tank；The oil outlet of three-way change-over valve is connected by connecting tube and wheel cylinder
It connects.
It can control and be set at four wheels respectively for the ease of the braking automobile auxiliary hydraulic device in the present embodiment
Wheel cylinder；Meanwhile in order to avoid influencing the normal work of other wheel cylinder because of some wheel cylinder oil leak, as this
A kind of preferred embodiment of embodiment, above-mentioned braking automobile auxiliary hydraulic device further include one point of four separating valve.
As shown in figure 5, one point of four separating valve includes valve body 123 and four seal chambers；It is respectively set in each seal chamber
There is sealing piston, and seal chamber is separated to form by first annular seal space room 125 and the second sealed chamber 126 by sealing piston；Its
In, sealing piston includes piston 130 and the first sealing cup 129 for being set to 130 two end faces of piston, passes through the first sealing
Leather cup 129 is conducive to improve the leakproofness of entire sealing piston.
Valve body 123 is provided with valve body oil inlet 124, and valve body oil inlet 124 is fuel-displaced by connecting tube and three-way change-over valve
Mouth connection.
First annular seal space room 125 is provided with first annular seal space room oil inlet 131, and is connected to valve body oil inlet 124.
Second sealed chamber 126 is provided with the second sealed chamber oil outlet 128, and passes through connecting tube and corresponding brake point
Pump connection；It is additionally provided with the resetting spring 127 for resetting sealing piston in second sealed chamber 126, the two of resetting spring 127
End is butted on the inner wall of sealing piston and the second sealed chamber 126 respectively, and the setting direction of resetting spring 127 and sealing piston are past
The direction moved again is consistent.
After oil is exported from the oil outlet of three-way change-over valve, pass through connecting tube, valve body oil inlet 124 and first annular seal space
Room oil inlet 131 enters first annular seal space room 125, and sealing piston is pushed to be moved to the second sealed chamber oil outlet 128, to
Oil in second sealed chamber 126 is pressed into corresponding wheel cylinder by the second sealed chamber oil outlet 128 and connecting tube, is made
Wheel cylinder works and realizes brake；Resetting spring 127 compresses simultaneously.
After unclamping parking brake, wheel cylinder is completed work and is replied, into the oil in wheel cylinder then in the work of wheel cylinder
It is passed back into the second sealed chamber 126 by connecting tube and the second sealed chamber oil outlet 128 with lower, sealing piston is flowing back
Oil pressure and resetting spring 127 restoring force under the action of to first annular seal space room oil inlet 131 move and be returned to
Initial position, in order to lower task.
Moreover, when oil leak occurring at some wheel cylinder, second to be connected with the wheel cylinder that this breaks down is close
The oil pressure sealed in chamber 126 reduces, and sealing piston is then moved because of pressure difference, and is got lodged at the second sealed chamber oil outlet 128,
And ensures the braking automobile auxiliary hydraulic device and control the normal work of other wheel cylinder.
As shown in fig. 6, for the operation principle schematic diagram of the braking automobile auxiliary hydraulic device；When automobile carries out parking braking
When, the oil in fuel tank flows to high pressure trapped fuel bucket and three-way change-over valve respectively by hydraulic pump, high-pressure pipeline and delivery valve；Three
The oil outlet and oil return opening of cross valve are in closed state, to make the oil into high pressure trapped fuel bucket that high pressure trapped fuel bucket be made to work
And complete oily and pressure prestore.Then, the oil in pipeline flows into one point by the oil outlet and connecting tube of three-way change-over valve
Four separating valves, and pushed respectively close in each seal chamber in one point of four separating valve by the shunting function of one point of four separating valve
Piston motion is sealed, and the oil pressure in the second sealed chamber 126 is entered into corresponding wheel cylinder, to control wheel cylinder work,
Realize parking braking and brake function.
Therefore, automobile braking device co- controlling wheel cylinder can be coordinated to work, enhance the brake of automobile braking device
Vehicle effect.
Meanwhile when automobile braking device failure, brake point can be still controlled by the braking automobile auxiliary hydraulic device
Pump work equally reaches braking effect.
After completing brake, the oil for flowing into wheel cylinder passes back into the second sealed chamber 126, oil of the sealing piston in reflux
Pressure and the reply force effect of resetting spring 127 arrive initial position again next time, and will be in first annular seal space room 125 and pipeline
In oil flowed back in fuel tank by the oil return opening of three-way change-over valve and the first oil return pipe, in order to lower task.
Moreover, during parking braking, when the oil pressure in pipeline is insufficient suddenly, be pre-stored in high pressure trapped fuel bucket oil and
Pressure is released, and the oil in pipeline can be pushed to continue towards one point of four separating valve, wheel cylinder is made to work on and complete parking
Braking.
For the ease of the installation and/or dismounting of telescopic rod and hydraulic cylinder 110 and fixed seat, it is preferable that as shown in fig. 7,
Telescopic rod includes piston rod 109 and sleeve 103；Sleeve 103 is sheathed on 110 outside of hydraulic cylinder, and between hydraulic cylinder 110
Gap coordinates；Piston rod 109 is located in sleeve 103.
One end of piston rod 109 is connect with hydraulic cylinder 110, and the other end of piston rod 109 is provided with circular bead surface；Sleeve
103 one end far from hydraulic cylinder 110 are provided with through-hole, and form the anchor ring to match with circular bead surface, and the platform of piston rod 109
Shoulder face end and the anchor ring end of sleeve 103 resist, and initial position is located at the through hole of first baffle 102, and can be along through-hole direction
It stretches out；Block 106 is set to sleeve 103 on the outside of the port of one end of hydraulic cylinder 110, and is in ring along sleeve circumferential distribution
Shape.
By above structure, the length of telescopic rod can be reduced, its structure is made to become short skilful.
Compressed spring 104 is sheathed on 103 outside of sleeve, and between first baffle 102 and block 106；Compressed spring
104 one end resists first baffle 102, and the other end of compressed spring 104 resists block 106.
The central axis position of hydraulic cylinder 110, piston rod 109, sleeve 103, compressed spring 104, mounting hole and through-hole
In on the same line, and piston rod 109 is flexible along the central axial direction of through-hole with moving sleeve 103.
In order to protect compressed spring 104, increase the fixed stability of fixed seat, it is preferable that above-mentioned fixed seat further includes four
The both ends of root screw rod 108, every screw rod 108 are connect with the first baffle 102 and second baffle 105 respectively, and by corresponding
Nut fix；Four screw rods 108 form fence and are distributed in 104 surrounding of compressed spring, to play guarantor to compressed spring 104
Shield acts on, and improves the fixed stability of entire fixed seat.
The quantity of screw rod 108 in the present embodiment can also be three, five or six roots of sensation etc..But in order to form fence,
Its quantity cannot be less than three.
It should be noted that the three-way change-over valve in the present embodiment is existing three-way change-over valve, the braking automobile hydraulic pressure
Auxiliary device is added to existing three-way change-over valve according to its operation principle, and is positioned in appropriate position to realize phase
The function answered.
Wherein, one point of four separating valve in the present embodiment can also be one-to-two separating valve or one point of six separating valve, root
It is divided according to sealed chamber or the wheel cylinder number of control.For example, when only wheel cylinder is arranged at two driving wheels in automobile,
One-to-two separating valve may be used accordingly.
Embodiment 2
Present embodiments provide a kind of braking automobile auxiliary hydraulic device comprising high-pressure pipeline, the first oil return pipe, three
Cross valve, high pressure trapped fuel bucket, one point of four separating valve and wheel cylinder；High-pressure pipeline is provided with delivery valve.
High pressure trapped fuel bucket includes fixed seat, hydraulic cylinder 110, telescopic rod and compressed spring 104.
Fixed seat includes the first fixed plate 101 and the second fixed plate 107, and the first fixed plate 101 and the second fixed plate 107 are divided
It is not provided with first baffle 102 and second baffle 105, shape is respectively inverted " t " type.
First baffle 102 and second baffle 105 are in opposite position, and first baffle 102 is provided with through-hole, second gear
Plate 105 is provided with mounting hole；Hydraulic cylinder 110 is fixedly connected by mounting hole with second baffle 105, one end of telescopic rod and liquid
Cylinder pressure cylinder 110 connects, and the initial position of the other end of telescopic rod is located at the through hole of first baffle 102, and can be outside along through-hole
It stretches out.
The lateral wall of telescopic rod is provided with block 106, and compressed spring 104 is sheathed on the outside of telescopic rod, and is located at first gear
Between plate 102 and block 106, and one end of compressed spring 104 resists the first baffle 102, the other end of compressed spring 104
Resist the block 106.
One point of four separating valve includes valve body 123 and four seal chambers；It is respectively arranged with sealing piston in each seal chamber,
And seal chamber is separated to form by first annular seal space room 125 and the second sealed chamber 126 by sealing piston；Sealing piston includes living
Plug 130 and the first sealing cup 129 for being set to 130 two end faces of piston.
Valve body 123 is provided with valve body oil inlet 124, and valve body oil inlet 124 is fuel-displaced by connecting tube and three-way change-over valve
Mouth connection.
First annular seal space room 125 is provided with first annular seal space room oil inlet 131, and is connected to valve body oil inlet 124.
Second sealed chamber 126 is provided with the second sealed chamber oil outlet 128, and passes through connecting tube and corresponding brake point
Pump connection；It is additionally provided with the resetting spring 127 for resetting sealing piston in second sealed chamber 126, the two of resetting spring 127
End is connect with the inner wall of sealing piston and the second sealed chamber 126 respectively, and the setting direction and sealing piston of resetting spring 127
The direction of reciprocating motion is consistent.
The both ends of first oil return pipe are connect with the oil return opening of the fuel tank of automobile braking device and three-way change-over valve respectively；Threeway
The oil inlet of switching valve is connect with the oil outlet of hydraulic cylinder oil inlet 111 and high-pressure pipeline respectively by connecting tube, high pressure
The oil inlet of petroleum pipeline is connect by hydraulic pump with fuel tank；The oil outlet of three-way change-over valve passes through connecting tube and one point of four separating valve
Valve body oil inlet 124 be connected to, four the second sealed chamber oil outlets 128 of one point of four separating valve pass through connecting tube and phase respectively
The four wheel cylinder connection answered.
As shown in Figure 8 and Figure 9, above-mentioned wheel cylinder include protecgulum 112, rear cover 121, hydraulic telescopic rod 116, push rod 120,
Push-plate 114, return spring 113, the second sealing cup 119.
Protecgulum 112 and rear cover 121 are tightly connected by clamp 115, and surround a seal operation room；Second sealing cup
119 are set in seal operation room, and seal operation room is separated to form the first seal operation room by the second sealing cup 119
With the second seal operation room.
One end of push rod 120 is set in the first seal operation room, and is fixedly connected with push-plate 114；113 sets of return spring
Set on 120 outside of push rod, and in the first seal operation room, and one end of return spring 113 resists push-plate 114, return bullet
The other end of spring 113 resists the inner wall of protecgulum 112.
The telescopic end 118 of hydraulic telescopic rod 116 is set in the second seal operation room, and the end face of telescopic end 118 with push away
The stress surface of disk 114 is located at the opposite position in both sides of the second sealing cup 119；Rear cover 121 is provided with stomata 122, and
Stomata 122 is connected to the second seal operation room；The cylinder body oil inlet 117 of hydraulic telescopic rod 116 then passes through connecting tube and one point four
Corresponding one the second sealed chamber oil outlet 128 connection in separating valve.
The wheel cylinder pushes the second sealing cup 119 and push-plate 114 by hydraulic telescopic rod 116 by drives push rod
120 mobile workings realize brake.
Existing wheel cylinder generally uses spring assembly that the second sealing cup 119 and push-plate 114 is pushed to move, with
The difference of 114 shift position of second sealing cup 119 and push-plate, the deformation quantity of spring element is also different, so as to cause spring
Component acts on the second sealing cup 119 and the active force of push-plate 114 is unstable, accordingly, it is possible to be unfavorable for the parking of push rod 120
Work.
It is directed to the above problem, it is preferable that it is close with promotion second that the wheel cylinder in the present embodiment uses hydraulic telescopic rod 116
Strip of paper used for sealing bowl 119 and push-plate 114 move, even if the second sealing cup 119 and push-plate 114 are moved to different positions, hydraulically extensible
The active force of bar 116 is constant, is smoothly worked to be conducive to push rod 120.
Preferably, the second one side of the sealing cup 119 towards push-plate 114 is concave surface, and concave surface matches with push-plate 114,
Second sealing cup 119 is buckled in by concave surface on push-plate 114, and with 114 synchronizing moving of push-plate, in this way, being conducive to the second sealing
Leather cup 119 is in the synchronizing moving of push-plate 114.
Wherein, in order to avoid due to the stress surface of the second sealing cup 119 is smaller by the telescopic end of hydraulic telescopic rod 116
118 burstings, therefore, the end face diameter of the telescopic end 118 of hydraulic telescopic rod 116 is 30-40mm, to improve the second sealing skin
The area of the stress surface of bowl 119 is conducive to avoid the second sealing cup 119 damaged.
As a kind of preferred embodiment of the present embodiment, as shown in Figure 10, above-mentioned braking automobile auxiliary hydraulic device further includes：
Second oil return pipe, air conditioning system for aircraft cabin and pressure sensor.
The both ends of second oil return pipe are connect with fuel tank and high-pressure pipeline respectively, and the second oil return pipe is provided with pressure regulator valve；
Pressure sensor is set to high pressure trapped fuel bucket, and is electrically connected with pressure regulator valve by air conditioning system for aircraft cabin.
By the oil pressure in pressure sensor monitoring high pressure trapped fuel bucket, air conditioning system for aircraft cabin receives pressure sensor monitoring number
According to, and the opening/closing of pressure regulator valve is controlled according to the pressure that sensor is monitored, to lead to/closing for the second oil return pipe of control, to control
Oil pressure in high pressure trapped fuel bucket processed avoids damaging because the oil pressure in high pressure trapped fuel bucket is higher, is conducive to entire braking automobile liquid
Press the normal work of auxiliary device.
When the oil pressure in the high pressure trapped fuel bucket of Sensor monitoring is less than the threshold value of air conditioning system for aircraft cabin, air conditioning system for aircraft cabin
Receive the data of Sensor monitoring and control pressure regulator valve closure, to make the second oil return pipe be closed, the oil in high-pressure pipeline is logical
It crosses out, and is delivered to high pressure trapped fuel bucket, so that the oil pressure in high pressure trapped fuel cylinder is increased, and reach the requirement for the oil pressure that prestores.
When the oil pressure in the high pressure trapped fuel bucket of Sensor monitoring reaches the threshold value of air conditioning system for aircraft cabin, air conditioning system for aircraft cabin
Receive the data of Sensor monitoring and control pressure regulator valve opening, to make the second oil return pipe be connected to, and makes in high-pressure pipeline
Oil through the second oil return pipe flow back to fuel tank, avoid continuing towards high pressure trapped fuel bucket by delivery valve because of the oil in high-pressure pipeline,
And the pressure of high pressure trapped fuel bucket is made to be more than threshold value, be conducive to the normal work of entire braking automobile auxiliary hydraulic device.
Meanwhile in order to efficiently control wheel cylinder, it is preferable that above-mentioned wheel cylinder further includes：It is moved for monitoring push-plate 114
Stroke sensor, alarm controller and the alarm of distance；Stroke sensor is set in the first seal operation room and push-plate
114 corresponding positions, and be electrically connected with alarm by alarm controller.
114 displacement distance of push-plate is monitored by stroke sensor, alarm controller receives the monitoring data of stroke sensor,
And alarm work is controlled according to the monitoring data of stroke sensor, avoid the telescopic end 118 because of hydraulic telescopic rod 116 from excessively pushing away
Dynamic push-plate 114 and push rod 120 move and push-plate 114 are caused to resist protecgulum 112, cause brake failure.
The preferred structure of wheel cylinder as the present embodiment, as shown in Figure 10, upper hydraulic telescopic rod includes：Cylinder body, wheel cylinder are stretched
Contracting bar, telescopic rod return spring 134, hydraulic cylinder piston and telescopic rod sealing ring；Cylinder body is provided with the outlet of wheel cylinder telescopic rod, hydraulic pressure
The cylinder piston 133 is set in cylinder body；One end of wheel cylinder telescopic rod is connect with hydraulic cylinder piston 133, the other end of wheel cylinder telescopic rod
(telescopic end 118) is exported across wheel cylinder telescopic rod, is located at outside cylinder body；Telescopic rod sealing ring 135 is set to the outlet of wheel cylinder telescopic rod
Place, and it is in sealing contact in the lateral wall of wheel cylinder telescopic rod；Telescopic rod return spring 133 is located in cylinder body, and is sheathed on wheel cylinder and stretches
Outside contracting bar, and one end of telescopic rod return spring 134 resists hydraulic cylinder piston 133, and the other end of telescopic rod return spring is butted on
Wheel cylinder telescopic rod exit.
Wherein, hydraulic cylinder piston 133 is provided with third sealing cup 132 on the end face of cylinder body oil inlet 117.
Pass through the telescopic rod return spring 134 being sheathed on wheel cylinder telescopic rod, after wheel cylinder completes work, telescopic rod return
Spring 134 is conducive to wheel cylinder telescopic rod backing into initial position, and makes the end face and the of the telescopic end 118 of wheel cylinder telescopic rod
Two sealing cups 119 detach, and avoid causing the second sealing due to the end face of telescopic end 118 and the second sealing cup 119 still contact
The abrasion of leather cup 119.
Meanwhile it can be effectively prevented from wheel cylinder telescopic rod and the reply of third sealing cup by telescopic rod sealing ring 135
When to initial position, the gas of the second seal operation room is blowed back by the outlet of wheel cylinder telescopic rod in cylinder body.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any made by repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of braking automobile auxiliary hydraulic device, which is characterized in that including high-pressure pipeline, the first oil return pipe, threeway conversion
Valve, separating valve, high pressure trapped fuel bucket and wheel cylinder；The high-pressure pipeline is provided with delivery valve；
The high pressure trapped fuel bucket includes fixed seat, hydraulic cylinder, telescopic rod and compressed spring；The fixed seat is provided with baffle,
The baffle plate setting has through-hole；The hydraulic cylinder is fixedly installed in the fixed seat；One end of the telescopic rod with it is described
Hydraulic cylinder connects, and the other end of the telescopic rod is located at the through hole, and coordinates with the via clearance；The telescopic rod
Lateral wall be provided with block, the compressed spring is sheathed on the outside of the telescopic rod, and is located at the baffle and the block
Between；One end of the compressed spring resists the baffle, and the other end of the compressed spring resists the block；
The both ends of first oil return pipe are connect with the oil return opening of the fuel tank of automobile braking device and the three-way change-over valve respectively；
The oil inlet of the three-way change-over valve by connecting tube respectively with the oil inlet of the hydraulic cylinder and the high-pressure pipeline
Oil outlet connects, and the oil inlet of the high-pressure pipeline is connect by hydraulic pump with the fuel tank；The three-way change-over valve goes out
Hydraulic fluid port is connect with the oil inlet of the separating valve, and the oil outlet of the separating valve is connected with the corresponding wheel cylinder.
2. braking automobile auxiliary hydraulic device according to claim 1, which is characterized in that the separating valve include valve body with
And seal chamber；It is respectively arranged with sealing piston in the seal chamber, and is separated to form first annular seal space room and the second sealed chamber；
The first annular seal space room is connected to the oil inlet of the valve body；Second sealed chamber is provided with for connecting the brake
The oil outlet of wheel cylinder；The seal chamber is corresponded with the wheel cylinder；It is provided in second sealed chamber for multiple
The resetting spring of the position sealing piston, the both ends of the resetting spring respectively with the sealing piston and second seal chamber
The inner wall of room connects.
3. braking automobile auxiliary hydraulic device according to claim 2, which is characterized in that the both ends of the surface of the sealing piston
It is respectively arranged with the first sealing cup.
4. braking automobile auxiliary hydraulic device according to claim 3, which is characterized in that the separating valve is one point four points
The quantity of fuel tap, the seal chamber of one point of four separating valve is four.
5. according to claim 1-4 any one of them braking automobile auxiliary hydraulic devices, which is characterized in that further include second time
Oil pipe, air conditioning system for aircraft cabin and pressure sensor, the both ends of second oil return pipe respectively with the fuel tank and the high pressure
Petroleum pipeline connects, and second oil return pipe is provided with pressure regulator valve；The pressure sensor is set to the high pressure trapped fuel bucket,
And it is electrically connected with the pressure regulator valve by the air conditioning system for aircraft cabin.
6. braking automobile auxiliary hydraulic device according to claim 5, which is characterized in that before the wheel cylinder includes
Lid, rear cover, hydraulic telescopic rod, push rod, push-plate, return spring, the second sealing cup；The protecgulum and rear cover are sealed by clamp
Connection, and surround a seal operation room；Second sealing cup is set in the seal operation room, and is separated to form
First seal operation room and the second seal operation room；One end of the push rod is set in first seal operation room, and with
The push-plate is fixedly connected；The return spring is sheathed on the outside of the push rod, and in the first seal operation room, and described
One end of return spring resists the push-plate, and the other end of the return spring resists the inner wall of the protecgulum；The hydraulic pressure is stretched
The telescopic end of contracting bar is set in second seal operation room, and the stress surface point of the end face of the telescopic end and the push-plate
Not Wei Yu second sealing cup the opposite position in both sides；Second sealing cup is affixed with the push-plate, and with pushing away
Disk synchronizing moving；The rear cover is provided with stomata, and the stomata is connected to second seal operation room.
7. braking automobile auxiliary hydraulic device according to claim 6, which is characterized in that the hydraulic telescopic rod includes：
Cylinder body, wheel cylinder telescopic rod, telescopic rod return spring, hydraulic cylinder piston and telescopic rod sealing ring；The cylinder body is provided with wheel cylinder and stretches
Contracting bar exports, and the hydraulic cylinder piston is set in the cylinder；One end of the wheel cylinder telescopic rod and the hydraulic cylinder piston
The other end of connection, the wheel cylinder telescopic rod is exported across the wheel cylinder telescopic rod, is located at outside the cylinder body；The telescopic rod is close
Seal is set to wheel cylinder telescopic rod exit；The telescopic rod return spring is located in the cylinder body, and is sheathed on described
Outside wheel cylinder telescopic rod, and one end of the telescopic rod return spring resists the hydraulic cylinder piston, the telescopic rod return spring
The other end be butted on wheel cylinder telescopic rod exit.
8. braking automobile auxiliary hydraulic device according to claim 7, which is characterized in that second sealing cup face
It is concave surface to the one side of the push-plate, and the concave surface matches with the push-plate, the push-plate is located in the concave surface.
9. braking automobile auxiliary hydraulic device according to claim 6, which is characterized in that the wheel cylinder further includes using
In the stroke sensor, alarm controller and the alarm that monitor the push-plate displacement distance；The stroke sensor is set to
Position corresponding with the push-plate in first seal operation room, and pass through shown alarm controller and alarm electricity
Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610270429.1A CN105711577B (en) | 2016-04-27 | 2016-04-27 | A kind of braking automobile auxiliary hydraulic device and separating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610270429.1A CN105711577B (en) | 2016-04-27 | 2016-04-27 | A kind of braking automobile auxiliary hydraulic device and separating valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105711577A CN105711577A (en) | 2016-06-29 |
| CN105711577B true CN105711577B (en) | 2018-07-24 |
Family
ID=56161799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610270429.1A Expired - Fee Related CN105711577B (en) | 2016-04-27 | 2016-04-27 | A kind of braking automobile auxiliary hydraulic device and separating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105711577B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109050503A (en) * | 2018-09-26 | 2018-12-21 | 齐世勇 | Numerical control hydraulic brake gear |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2044854B (en) * | 1979-02-28 | 1983-04-20 | Deacon G | Brake actuator particularly for agricultural trailers |
| JPS598556A (en) * | 1982-07-05 | 1984-01-17 | Nippon Air Brake Co Ltd | Hydraulic brake circuit |
| JPS60222356A (en) * | 1984-04-17 | 1985-11-06 | Honda Motor Co Ltd | Brake hydraulic pressure control valve device for vehicle |
| CN2405823Y (en) * | 1999-12-01 | 2000-11-15 | 王文标 | Safety device for hydraulic braking of vehicles |
| CN200952633Y (en) * | 2006-04-13 | 2007-09-26 | 立晏企业有限公司 | Safety automatic circulating oil-changing structure |
| CN202482016U (en) * | 2012-03-14 | 2012-10-10 | 安徽合力股份有限公司 | Diesel fork lift truck hydraulic system with safety protection mechanism |
| CN202812735U (en) * | 2012-09-10 | 2013-03-20 | 郑州奥特科技有限公司 | Liquid distribution valve |
| CN102923118B (en) * | 2012-11-22 | 2016-06-01 | 四川制动科技股份有限公司 | A kind of locomotive distribution valve and method of work thereof |
| CN205601823U (en) * | 2016-04-27 | 2016-09-28 | 齐世勇 | Automobile brake hydraulic pressure auxiliary device and branch fuel tap |
-
2016
- 2016-04-27 CN CN201610270429.1A patent/CN105711577B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN105711577A (en) | 2016-06-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103994163A (en) | Hydraulic anti-lock brake wheel cylinder and braking system | |
| CN105952698B (en) | A kind of solution-air pressurized cylinder | |
| CN106536311A (en) | Arrangement for hydraulic motor vehicle brake system, and brake system having arrangement of said type | |
| CN106043258A (en) | Breaker pump and applications thereof on loaders | |
| CN103373331A (en) | Pressure damping device for brake system | |
| CN105711577B (en) | A kind of braking automobile auxiliary hydraulic device and separating valve | |
| DE102013225785A1 (en) | Slip-controlled hydraulic vehicle brake system and combination of a pressure vibration damper and a check valve for such a vehicle brake system | |
| CN208669569U (en) | A kind of boosting reciprocating pump fluid end structure | |
| CN205601823U (en) | Automobile brake hydraulic pressure auxiliary device and branch fuel tap | |
| GB1387194A (en) | Hydraulic servo unit for automotive braking system | |
| CN102803665B (en) | Air motor | |
| CN202690555U (en) | Booster cylinder | |
| CN205655963U (en) | Automobile -used cylinder shroud assembly test equipment | |
| CN102079302B (en) | Air booster pump of engineering machinery brake system | |
| CN109050503A (en) | Numerical control hydraulic brake gear | |
| CN207089283U (en) | A kind of oil-gas separated-type master cylinder | |
| CN105673594A (en) | Hydraulic integrated manifold block device | |
| CN208881772U (en) | Numerical control hydraulic brake gear | |
| CN205737512U (en) | Automobile brake oil pipe protection device | |
| CN102673532B (en) | The sealant container unit of the valve with improvement for inflatable articles being placed under repair and inflate | |
| CN101402358A (en) | Hydraulic reinforcement brake controller of automobile | |
| CN207131565U (en) | Efficient high-pressure power plunger pump | |
| CN103161725A (en) | Piston-type pressure pump | |
| CN208778389U (en) | A kind of reach oil cylinder front and back buffer structure | |
| CN110341674A (en) | A kind of hydraulic control unit giving young employees remedial-courses in general knowledge and vocational skills liquid check valve tandem redundancy structure and improve structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180724 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |