CN209191922U - A kind of hydraulic main pump and brake fluid system - Google Patents
A kind of hydraulic main pump and brake fluid system Download PDFInfo
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- CN209191922U CN209191922U CN201821858794.5U CN201821858794U CN209191922U CN 209191922 U CN209191922 U CN 209191922U CN 201821858794 U CN201821858794 U CN 201821858794U CN 209191922 U CN209191922 U CN 209191922U
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Abstract
The utility model relates to braking technology fields, and in particular to a kind of hydraulic main pump and brake fluid system.Hydraulic main pump provided by the utility model includes valve body, pressure exerting arrangement and pressure regulating device；Valve body has liquid storage chamber and pressure regulating cavity, and liquid storage chamber is connected to pressure regulating cavity by gas vent；Liquid storage chamber has the first oil outlet, and pressure regulating cavity has the second oil outlet；Pressure exerting arrangement is configured to the hydraulic oil into liquid storage chamber and applies pressure.Pressure regulating device is set in pressure regulating cavity, and pressure regulating device is configured to adjust size or the time of the hydraulic oil output in pressure regulating cavity.Apply pressure by hydraulic oil of the pressure exerting arrangement into liquid storage chamber, a part of hydraulic oil is exported by the first oil outlet, and another part hydraulic oil flows into pressure regulating cavity, by the adjusting of pressure regulating device, is exported from the second oil outlet.
Description
Technical field
The utility model relates to brake field of mechanical technique, and in particular to a kind of hydraulic main pump and brake fluid system.
Background technique
Braking system is one of travel safety ensuring system of vehicle, and importance causes the great attention of people.It is existing
Linked braking system is all used in many motorcycles.But if front and back wheel is braked simultaneously, identical brake force is generated, it is preceding
Brake force can not be reconciled afterwards, and it will cause in low attached road surface braking process, locking occurs in advance for front-wheel；Or there is vehicle braking
Situations such as power is unbalanced, and brake force is insufficient seriously affects the security performance of braking.
Utility model content
To solve the above problem in the prior art, the purpose of this utility model is to provide a kind of hydraulic main pumps.
The another object of the utility model is to provide a kind of brake fluid system with above-mentioned hydraulic main pump.
The embodiments of the present invention are achieved in that
A kind of hydraulic main pump comprising valve body, valve body, the valve body have liquid storage chamber and pressure regulating cavity, the liquid storage
Chamber is connected to the pressure regulating cavity by gas vent；The liquid storage chamber has the first oil outlet, and the pressure regulating cavity has second
Oil outlet；Pressure exerting arrangement, the pressure exerting arrangement are set in the liquid storage chamber, and the pressure exerting arrangement is configured to the liquid storage
Intracavitary hydraulic oil applies pressure；Pressure regulating device, the pressure regulating device are set in the pressure regulating cavity, and the pressure regulating device is constructed
At the hydraulic oil output size or time adjusted in the pressure regulating cavity.
In one embodiment of the utility model:
The pressure exerting arrangement includes main pump piston portion and pressure unit, and the main pump piston portion matches with liquid storage chamber sliding
It closes, pushes the main pump piston portion for changing the pressure of hydraulic oil in the liquid storage chamber；The pressure unit is configured to institute
State main pump piston portion apply pressure, make the main pump piston portion along axial direction the Slideslip into the liquid storage chamber.
In one embodiment of the utility model:
The main pump piston portion includes piston head, piston rod, ring baffle, first seal and piston reset spring；
The piston head and the ring baffle are set to the both ends of the piston rod, and the first seal is set to the piston
End face of the head far from the piston rod；Described piston reset spring one end is connected to the first seal, and the other end is connected to
The liquid storage chamber.
In one embodiment of the utility model:
The liquid storage cavity wall is provided with logical hydraulic fluid port, when the piston reset spring is in original state, the logical oil
Mouth is placed in the first seal close to the piston reset spring side.
In one embodiment of the utility model:
The pressure regulating device includes delay piston piece and delay spring, the delay piston piece and the delay spring
It is all set in the pressure regulating cavity；The delay spring is configured to make the delay piston piece to have to move to the gas vent
Trend.
In one embodiment of the utility model:
The delay piston piece includes delay piston head, delay piston rod, delay sealing ring and delay piston return spring；
One end of the delay piston rod is arranged in the delay piston head；The delay sealing ring is set in the delay piston rod
On, and the delay sealing ring has interval, the tune between delay piston rod and the side wall of the pressure regulating cavity respectively
Press chamber that the end of the pressure input mouth is provided with annular convex platform；The delay spring is set in the delay piston rod
On, one end is abutted with the delay sealing ring, and the other end is connected to the pressure regulating cavity, will postpone sealing ring be connected to it is described
On annular convex platform；The one end of the delay piston rod far from the delay piston head is arranged in the delay piston return spring,
So as to have interval between the piston head and the delay sealing ring；The elastic force of the delay spring is greater than the delay piston
The elastic force of return spring.
In one embodiment of the utility model:
Delay spring pedestal is provided in the pressure regulating cavity, the delay piston rod slidably extends through the delay spring
Pedestal, the delay spring one end are connected to the delay sealing ring, and the other end is connected to the delay spring pedestal.
In one embodiment of the utility model:
The pressure regulating device includes proportional piston bar, proportional piston head, proportional spring, ring shaped stopper；The pressure regulating cavity
The pressure output port is provided with ratio sealing ring；The proportional piston bar, the proportional piston head, the ratio bullet
Spring and the ring shaped stopper are all set in the pressure regulating cavity；The proportional piston bar slidably extends through the ratio sealing
One end of the proportional piston bar is arranged in circle, the proportional piston head, and the ring shaped stopper is located on the proportional piston bar
And it is concentric with the proportional piston bar, the proportional piston head and the ring shaped stopper are set to the ratio sealing ring two
Side；The proportional spring is sheathed on the proportional piston bar, and described proportional spring one end is connected to the ring shaped stopper, the other end
It is connected to the pressure regulating cavity；When the proportional spring is in original state, the ring shaped stopper and the proportional piston head are equal
There is interval with the ratio sealing ring；End of the proportional piston bar far from the proportional piston head and the pressure regulating cavity have
Have prepsetting gap.
In one embodiment of the utility model:
Proportional spring pedestal is provided in the pressure regulating cavity, the proportional piston bar slidably extends through the proportional spring
Pedestal, described proportional spring one end are connected to the ring shaped stopper, and the other end is connected to the proportional spring pedestal.
A kind of brake fluid system comprising the hydraulic main pump of any one of the above.
The beneficial effect of the utility model embodiment is:
The hydraulic main pump provided in the embodiments of the present invention includes valve body, valve body, and the valve body has liquid storage chamber
And pressure regulating cavity, the liquid storage chamber are connected to the pressure regulating cavity by gas vent；The liquid storage chamber has the first oil outlet, institute
It states pressure regulating cavity and has the second oil outlet；Pressure exerting arrangement, the pressure exerting arrangement are set in the liquid storage chamber, the pressure exerting arrangement
It is configured to the hydraulic oil into the liquid storage chamber and applies pressure；Pressure regulating device, pressure regulating device are set in pressure regulating cavity, pressure regulating device
It is configured to adjust size or the time of the hydraulic oil output in pressure regulating cavity.In braking process, by pressure exerting arrangement to liquid storage
Intracavitary hydraulic oil applies pressure, and a part of hydraulic oil is exported by the first oil outlet, and another part hydraulic oil flows into pressure regulating cavity
It is interior, by the adjusting of pressure regulating device, exported from the second oil outlet.Hydraulic main pump provided by the utility model, can will be defeated at one
Enter to become hydraulic output at two, and output hydraulic pressure is different at two, can be effectively prevented from linkage braking and cause front brake power excessive
The problem of, so that forward and backward braking distribution ratio is more suitable, braking is more steady, more quickly.
Brake fluid system provided by the utility model, including above-mentioned hydraulic main pump, therefore also with above-mentioned beneficial
Effect.
Detailed description of the invention
It is to be used attached to being needed in embodiment below for the clearer technical solution for illustrating the utility model embodiment
Figure is briefly described.It should be appreciated that the following drawings illustrates only the certain embodiments of the utility model, it is not construed as pair
The limitation of the scope of the utility model.To those skilled in the art, without creative efforts, Neng Gougen
Other accompanying drawings are obtained according to these attached drawings.
Fig. 1 is the overall structure diagram for the hydraulic main pump that the utility model embodiment 1 provides；
Fig. 2 is the cross-sectional view of A-A in Fig. 1；
Fig. 3 is the overall structure diagram for the brake fluid system that the utility model embodiment 2 provides.
Icon: the hydraulic main pump of 10-；100- valve body；110- liquid storage chamber；The first oil outlet of 112-；120- pressure regulating cavity；122-
Second oil outlet；130- gas vent；200- pressure exerting arrangement；210- main pump piston portion；211- piston head；212- piston rod；213-
Ring baffle；214- first seal；215- second seal；216- piston reset spring；300- pressure regulating device；310- delay
Piston piece；311- postpones piston head；312- postpones piston rod；313- postpones sealing ring；314- postpones piston return spring；320-
Postpone spring；400- pressure unit；410- piston push rod；420- main pump piston dirt-proof boot；20- brake fluid system.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Usually here in attached drawing description and
The component of the utility model embodiment shown can be arranged and be designed with a variety of different configurations.
Therefore, requirement is not intended to limit to the detailed description of the embodiments of the present invention provided in the accompanying drawings below
The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the range of the utility model protection.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the utility model embodiment, it should be noted that if there is term " on ", "lower", "inner", "outside"
The orientation or positional relationship of equal instructions is to be based on the orientation or positional relationship shown in the drawings or the utility model product uses
When the orientation or positional relationship usually put, be merely for convenience of describing the present invention and simplifying the description, rather than indicate or
It implies that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as
Limitations of the present invention.If being only used for distinguishing in addition, occurring term " first ", " second " etc. in the description of the utility model
Description, is not understood to indicate or imply relative importance.
In the description of the utility model embodiment, it is also necessary to which explanation is unless specifically defined or limited otherwise, if
Term " setting ", " connection " occur shall be understood in a broad sense, for example, it may be fixedly connected, may be a detachable connection or one
Connect to body；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, it can also be indirect by intermediary
It is connected, can be the connection inside two elements.For the ordinary skill in the art, on being understood with concrete condition
State the concrete meaning of term in the present invention.
Embodiment 1:
It please refers to Fig. 1 and combines Fig. 2, the present embodiment provides a kind of hydraulic main pumps 10 comprising valve body 100, the valve body
100 have liquid storage chamber 110 and pressure regulating cavity 120, and the liquid storage chamber 110 is connected with the pressure regulating cavity 120 by gas vent 130
Logical, the liquid storage chamber 110 has the first oil outlet 112, and the pressure regulating cavity 120 has the second oil outlet 122；Pressure exerting arrangement
200, the pressure exerting arrangement 200 is set in the liquid storage chamber 110, and the pressure exerting arrangement 200 is configured to the liquid storage chamber
Hydraulic oil applies pressure in 110；Pressure regulating device 300, the pressure regulating device 300 are set in the pressure regulating cavity 120, the pressure regulation
Mechanism 300 is configured to adjust hydraulic in the pressure regulating cavity 120.
In the present embodiment, the pressure exerting arrangement 200 includes main pump piston portion 210 and pressure unit 400, the main pump
Piston portion 210 and the liquid storage chamber 110 slide axially cooperation, push the main pump piston portion 210 for changing the liquid storage
The pressure of hydraulic oil in chamber 110；The pressure unit 400 is configured to apply pressure to the main pump piston portion 210, makes described
The Slideslip into the liquid storage chamber 110 along axial direction of main pump piston portion 210.
It should be noted that not being defined here to the concrete mechanism form of pressure exerting arrangement 200, in other specific implementations
In example, booster etc. can also be set by pressure exerting arrangement 200 according to the demand of user.
Specifically, in the present embodiment, the pressure unit 400 includes that main pump piston push rod 410 and main pump piston are dust-proof
Set 420；The main pump piston push rod 410 is connected to the ring baffle 213 in the main pump piston portion 210, and the main pump piston pushes away
410 end of bar is set as dome-type, and the ring baffle 213 is provided with the arc groove with the dome-type matching ends.
In applying press process, by pushing main pump piston push rod 410 to push main pump piston portion 210 to liquid storage
110 direction of chamber is mobile.
In the present embodiment, the main pump piston portion 210 includes piston head 211, piston rod 212, ring baffle 213, the
One sealing element 214 and piston reset spring 216；The piston head 211 and the ring baffle 213 are set to the work
The both ends of stopper rod 212, the first seal 214 are set to end face of the piston head 211 far from the piston rod 212；Institute
It states 216 one end of piston reset spring and is connected to the first seal 214, the other end is connected to the liquid storage chamber 110.
Specifically, in the present embodiment, first seal 214 is set as Y type.
Specifically, in the present embodiment, the main pump piston portion 210 includes second seal 215, the second seal
215 are sheathed on the piston rod 212, and described 215 one end of second seal is connected to the ring baffle 213.
Specifically, in the present embodiment, the second seal 215 is set as Y type.
It should be noted that applied pressure in main pump piston portion 210, and after hydraulic oil outflow, the piston reset spring
216 can push piston rod 212 to revert to initial position, convenient for pressing next time.
In the present embodiment, 110 inner wall of liquid storage chamber is provided with logical hydraulic fluid port, when the piston reset spring 216 is in
When original state, the logical hydraulic fluid port is placed in the first seal 214 close to 216 side of piston reset spring.
In course of exerting pressure, main pump piston portion 210 continues the pressure that presses, so that piston head to 110 medial movement of liquid storage chamber
211 cross logical hydraulic fluid port, and then keep generation system in liquid storage chamber 110 hydraulic.Hydraulic oil a part is defeated by the first oil outlet 112
Out, another part flows into pressure regulating cavity 120, by the adjusting of pressure regulating device 300, changes the outflow of 122 hydraulic oil of the second oil outlet
Pressure or outflow mode.
In the present embodiment, the pressure regulating device 300 includes delay piston piece 310 and postpones spring 320, described to prolong
Slow piston piece 310 and the delay spring 320 are all set in the pressure regulating cavity 120；The delay spring 320 is constructed
To make the delay piston piece 310 that there is the trend moved to the gas vent 130.
It should be noted that in the present embodiment, the mechanism for having delayed-action is set by the pressure regulating device 300,
Delay the output of the brake power of the second oil outlet 122 of pressure regulating cavity 120.
In the present embodiment, the delay piston piece 310 is close including delay piston head 311, delay piston rod 312, delay
Seal 313 and delay piston return spring 314；One end of the delay piston rod 312 is arranged in the delay piston head 311；
The delay sealing ring 313 is set on the delay piston rod 312, and the delay sealing ring 313 respectively with the delay
There is interval, the pressure regulating cavity 120 is close to the pressure input mouth between piston rod 312 and the side wall of the pressure regulating cavity 120
End be provided with annular convex platform；The delay spring 320 is set on the delay piston rod 312, and one end is prolonged with described
Slow sealing ring 313 abuts, and the other end is connected to the pressure regulating cavity 120, will postpone sealing ring 313 and be connected to the annular convex platform
On；The one end of the delay piston rod 312 far from the delay piston head 311 is arranged in the delay piston return spring 314,
So as to have interval between the piston head 211 and the delay sealing ring 313；The elastic force of the delay spring 320 is greater than institute
State the elastic force of delay piston return spring 314.
In braking process, through gas vent 130 input hydraulic pressure oil, when delay piston head 311 is by the direction pressure regulating cavity
When the pressure in 120 directions is greater than the elastic force of delay piston return spring 314, delay piston piece 310 starts to move, until delay is lived
The end face of chock plug 311 is contacted with delay sealing ring 313, and pressure input mouth and pressure regulating cavity 120 separate at this time, continues growing pressure
The pressure of input port, namely rear input pressure continue to increase, when the pressure that delay 311 end face of piston head is subject to is greater than delay bullet
When 320 elastic force of spring, the delay piston head 311, which compresses the delay spring 320, to be continued to 120 medial movement of pressure regulating cavity,
It is penetrated through to gas vent 130 and the second oil outlet 122, delay releases at this time.
Also it should be noted that the hydraulic main pump 10 provided in the present embodiment can apply motorcycle, automobile or other
It needs to brake, in the machinery of rate restraint.
In the present embodiment, delay spring pedestal (not shown) is provided in the pressure regulating cavity 120, the delay is lived
Stopper rod 312 slidably extends through the delay spring pedestal, and described 320 one end of delay spring is connected to the delay sealing ring
313, the other end is connected to the delay spring pedestal.
The hydraulic main pump 10 provided in the embodiments of the present invention includes valve body 100, pressure exerting arrangement 200 and pressure regulation
Mechanism 300, the valve body 100 have liquid storage chamber 110 and pressure regulating cavity 120, the liquid storage chamber 110 and the pressure regulating cavity 120
It is connected to by gas vent 130；The liquid storage chamber 110 has the first oil outlet 112, and the pressure regulating cavity 120 has second and goes out
Hydraulic fluid port 122.The pressure exerting arrangement 200 is set in the liquid storage chamber 110, and the pressure exerting arrangement 200 is configured to the storage
Hydraulic oil applies pressure in sap cavity 110.The pressure regulating device 300 is set in the pressure regulating cavity 120, the pressure regulating device 300
It is configured to adjust hydraulic in the pressure regulating cavity 120.In braking process, through pressure exerting arrangement 200 into liquid storage chamber 110
Hydraulic oil applies pressure, and a part of hydraulic oil is exported by the first oil outlet 112, and another part hydraulic oil flows into pressure regulating cavity 120
It is interior, by the adjusting of pressure regulating device 300, change the pressure of 122 hydraulic oil of the second oil outlet outflow or the mode of outflow.This is practical
Input at one can be become hydraulic output at two by the hydraulic main pump 10 of novel offer, and output hydraulic pressure is different at two, can be effective
Ground avoids the problem for causing front brake power excessive in linkage braking, so that forward and backward braking distribution ratio is more suitable, braking is more flat
Surely, more quickly.
Embodiment 2:
In the present embodiment, the pressure regulating device 300 includes proportional piston bar, proportional piston head, proportional spring, cyclic annular gear
Block (not shown)；The pressure regulating cavity 120 is provided with ratio sealing ring close to the pressure output port；The ratio is living
Stopper rod, the proportional piston head, the proportional spring and the ring shaped stopper are all set in the pressure regulating cavity 120；It is described
Proportional piston bar slidably extends through the ratio sealing ring, and the one of the proportional piston bar is arranged in the proportional piston head
End, the ring shaped stopper are located on the proportional piston bar and concentric with the proportional piston bar, the proportional piston head with
The ring shaped stopper is set to ratio sealing ring two sides；The proportional spring is sheathed on the proportional piston bar, the ratio
Example spring one end is connected to the ring shaped stopper, and the other end is connected to the pressure regulating cavity 120；When the proportional spring is in initial
When state, the ring shaped stopper and the proportional piston head have interval with the ratio sealing ring；The proportional piston bar
End and the pressure regulating cavity 120 far from the proportional piston head have prepsetting gap.
In braking process, with the pressure increase in liquid storage chamber 110, so that hydraulic oil flows into pressure regulating cavity 120,
So that proportional piston head and ring shaped stopper are greater than the elastic force of the proportional spring by the pressure for being directed toward 120 direction of pressure regulating cavity
When, the proportional piston head is to 120 medial movement of pressure regulating cavity, until the proportional piston head and the contact of ratio sealing ring, make
Gas vent 130 and pressure regulating cavity 120 separate, pressure that the second oil outlet 122 exports is determined by the elastic force of proportional spring at this time.
After the proportional piston and ratio sealing ring contact, the pressure of the pressure regulating cavity 120 continues to increase, when described
The pressure moment that ratio sealing ring is subject to is greater than proportional piston head and ring shaped stopper by the pressure for being directed toward 120 direction of pressure regulating cavity
When, the proportional piston moment return, pressure output port and 120 moment of pressure regulating cavity penetrate through, but are immediately returned to proportional piston
Head and ring shaped stopper individually by be directed toward 120 direction of pressure regulating cavity pressure situation, the proportional piston head again momentary reset,
It is contacted with the ratio sealing ring, separates gas vent 130 and pressure regulating cavity 120, proportional piston is always in next work
In switching equilibrium state.
Proportional spring pedestal (not shown) is provided in the pressure regulating cavity 120, the proportional piston bar is slideably
Through the proportional spring pedestal, described proportional spring one end is connected to the ring shaped stopper, and the other end is connected to the ratio
Spring pedestal.
It should be noted that the pressure regulating device 300 is not limited to two kinds of specific structures in embodiment 1 and embodiment 2,
Other structures can be set by pressure adjusting structure according to the actual demand of user.
Embodiment 3:
Fig. 3 is the overall structure diagram for the brake fluid system 20 that the utility model embodiment 2 provides.Referring to figure 3.,
The present embodiment provides a kind of brake fluid system 20, the brake fluid system 20 includes the hydraulic main pump 10 of above-mentioned any one.
In implementation process, apply input power F on pedal, pedal power output P, power output P are converted into hydraulic by hydraulic main pump 10
P1 and hydraulic output P2 is exported, and hydraulic output (P1 and P2) be not identical at two, and then realizes the difference of front and back brake force, enhancing
Brake stability.
Brake fluid system 20 provided by the utility model including above-mentioned hydraulic main pump 10, therefore also has above-mentioned
Beneficial effect.
Obviously, the above embodiments of the present invention is used for the purpose of clearly illustrating examples for clearly illustrating the present invention, and
It is not limitations of the embodiments of the present invention.For those of ordinary skill in the art, in above description
On the basis of can also make other variations or changes in different ways.There is no need and unable to give all embodiments
Exhaustion.Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention etc., should be included in
Within the protection scope of the utility model claims.
Claims (10)
1. a kind of hydraulic main pump, which is characterized in that the hydraulic main pump includes:
Valve body, the valve body have liquid storage chamber and pressure regulating cavity, and the liquid storage chamber is connected to the pressure regulating cavity by gas vent,
The liquid storage chamber has the first oil outlet, and the pressure regulating cavity has the second oil outlet；
Pressure exerting arrangement, the pressure exerting arrangement are set in the liquid storage chamber, and the pressure exerting arrangement is configured to the liquid storage chamber
Interior hydraulic oil applies pressure；
Pressure regulating device, the pressure regulating device are set in the pressure regulating cavity, and the pressure regulating device is configured to adjust the pressure regulation
Intracavitary hydraulic oil output size or time.
2. hydraulic main pump according to claim 1, which is characterized in that the pressure exerting arrangement includes main pump piston portion and applies
Splenium, the main pump piston portion are slidably matched with the liquid storage chamber, push the main pump piston portion for changing the liquid storage chamber
The pressure of interior hydraulic oil；The pressure unit is configured to apply pressure to the main pump piston portion, makes main pump piston portion edge
The axial Slideslip into the liquid storage chamber.
3. hydraulic main pump according to claim 2, which is characterized in that the main pump piston portion include piston head, piston rod,
Ring baffle, first seal and piston reset spring；The piston head and the ring baffle are set to the piston
The both ends of bar, the first seal are set to end face of the piston head far from the piston rod；The piston reset spring
One end is connected to the first seal, and the other end is connected to the liquid storage chamber.
4. hydraulic main pump according to claim 3, which is characterized in that the liquid storage cavity wall is provided with logical hydraulic fluid port, works as institute
When stating piston reset spring and being in original state, the logical hydraulic fluid port is placed in the first seal close to the piston reset spring
Side.
5. hydraulic main pump according to claim 1, which is characterized in that the pressure regulating device includes delay piston piece and prolongs
Slow spring, the delay piston piece and the delay spring are all set in the pressure regulating cavity；The delay spring is constructed
To make the delay piston piece that there is the trend moved to the gas vent.
6. hydraulic main pump according to claim 5, which is characterized in that the delay piston piece includes delay piston head, prolongs
Slow piston rod, delay sealing ring and delay piston return spring；The one of the delay piston rod is arranged in the delay piston head
End；The delay sealing ring is set on the delay piston rod, and the delay sealing ring respectively with the delay piston rod
There is interval between the side wall of the pressure regulating cavity, the pressure regulating cavity is provided with annular close to the end of the pressure input mouth
Boss；The delay spring is set on the delay piston rod, and one end is abutted with the delay sealing ring, and the other end abuts
In the pressure regulating cavity, sealing ring will be postponed and be connected on the annular convex platform；The delay piston return spring is arranged in institute
The one end of delay piston rod far from the delay piston head is stated, so that between having between the piston head and the delay sealing ring
Every；The elastic force of the delay spring is greater than the elastic force of the delay piston return spring.
7. hydraulic main pump according to claim 6, which is characterized in that delay spring pedestal is provided in the pressure regulating cavity,
The delay piston rod slidably extends through the delay spring pedestal, and the delay spring one end is connected to the delay sealing
Circle, the other end are connected to the delay spring pedestal.
8. hydraulic main pump according to claim 1, which is characterized in that the pressure regulating device includes proportional piston bar, ratio
Piston head, proportional spring, ring shaped stopper；The pressure regulating cavity is provided with ratio sealing ring close to the pressure output port；Institute
Proportional piston bar, the proportional piston head, the proportional spring and the ring shaped stopper is stated to be all set in the pressure regulating cavity；
The proportional piston bar slidably extends through the ratio sealing ring, and the proportional piston bar is arranged in the proportional piston head
One end, the ring shaped stopper are located on the proportional piston bar and, the proportional piston head concentric with the proportional piston bar
Ratio sealing ring two sides are set to the ring shaped stopper；The proportional spring is sheathed on the proportional piston bar, described
Proportional spring one end is connected to the ring shaped stopper, and the other end is connected to the pressure regulating cavity；When the proportional spring is in initial
When state, the ring shaped stopper and the proportional piston head have interval with the ratio sealing ring；The proportional piston bar
End and the pressure regulating cavity far from the proportional piston head have prepsetting gap.
9. hydraulic main pump according to claim 8, which is characterized in that proportional spring pedestal is provided in the pressure regulating cavity,
The proportional piston bar slidably extends through the proportional spring pedestal, and described proportional spring one end is connected to the cyclic annular gear
Block, the other end are connected to the proportional spring pedestal.
10. a kind of brake fluid system, which is characterized in that the brake fluid system includes claim 1 to 9 any one institute
The hydraulic main pump stated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821858794.5U CN209191922U (en) | 2018-11-12 | 2018-11-12 | A kind of hydraulic main pump and brake fluid system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821858794.5U CN209191922U (en) | 2018-11-12 | 2018-11-12 | A kind of hydraulic main pump and brake fluid system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209191922U true CN209191922U (en) | 2019-08-02 |
Family
ID=67411158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821858794.5U Active CN209191922U (en) | 2018-11-12 | 2018-11-12 | A kind of hydraulic main pump and brake fluid system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209191922U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109204273A (en) * | 2018-11-12 | 2019-01-15 | 湖北航特科技有限责任公司 | A kind of hydraulic main pump and brake fluid system |
-
2018
- 2018-11-12 CN CN201821858794.5U patent/CN209191922U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109204273A (en) * | 2018-11-12 | 2019-01-15 | 湖北航特科技有限责任公司 | A kind of hydraulic main pump and brake fluid system |
| CN109204273B (en) * | 2018-11-12 | 2024-04-26 | 湖北航特科技有限责任公司 | Hydraulic main pump and hydraulic braking system |
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