CN108019448A - One kind wheel side electric drive retarder parking brake - Google Patents
One kind wheel side electric drive retarder parking brake Download PDFInfo
- Publication number
- CN108019448A CN108019448A CN201711335718.6A CN201711335718A CN108019448A CN 108019448 A CN108019448 A CN 108019448A CN 201711335718 A CN201711335718 A CN 201711335718A CN 108019448 A CN108019448 A CN 108019448A
- Authority
- CN
- China
- Prior art keywords
- parking
- piston
- cylinder body
- stroke block
- return spring
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2121/00—Type of actuator operation force
- F16D2121/02—Fluid pressure
- F16D2121/04—Fluid pressure acting on a piston-type actuator, e.g. for liquid pressure
Abstract
The invention discloses one kind to take turns side electric drive retarder parking brake, it is characterised in that the parking brake includes：One cylinder body, a piston, a return spring, a piston shaft, one end of the piston shaft are connected with the piston, and the return spring acts on the piston so that the piston shaft parallel motion；One parking stroke block, the parking stroke block are connected with the other end of the piston shaft, and the parking stroke block is under the parallel motion of the piston shaft so that the switch opening and closing of the parking stroke block；One electrodynamic pump, the electrodynamic pump are connected with the cylinder body.Solve of the prior art since two kinds of parking braking patterns can not all meet steering and driving axle in the prior art and single bridge drives or the technical problem of electric drive automobile, realize full electric drive Off-road vehicle transmission system parking braking, it is compact-sized, efficiently use space, the technique effect of effective collection vehicle information.
Description
Technical field
The present invention relates to special car technical field, more particularly to a kind of wheel side electric drive retarder parking brake.
Background technology
At present, parking braking has two kinds of patterns, and a kind of is the wheel drag that same service braking system shares, for entirety
Formula drive axle or divided axle hub for vehicle wheel and brake assembly；One kind is centre brake, it is ad hoc in power train
Holding brake device in system, is typically mounted at the input shaft end of transmission output shaft end or drive axle, its brake force produced
Square is acted on transmission shaft.
But present inventor has found the above-mentioned prior art extremely during technical solution in realizing the embodiment of the present application
Have the following technical problems less：
Since two kinds of parking braking patterns have limitation in the prior art, so as to cause the same service braking system of former
Shared wheel drag occupied space is big, is not suitable for steering and driving axle, latter centre brake be not suitable for the driving of single bridge or
The technical problem of electric drive automobile.
The content of the invention
An embodiment of the present invention provides one kind to take turns side electric drive retarder parking brake, to solve in the prior art
Two kinds of parking braking patterns can not all meet steering and driving axle and the technical problem of single bridge driving or electric drive automobile, realize complete
Electric drive Off-road vehicle transmission system parking braking, it is compact-sized, efficiently use space, the technology of effective collection vehicle information
Effect.
To solve the above-mentioned problems, in a first aspect, an embodiment of the present invention provides one kind wheel side electric drive retarder with staying
Car brake, the parking brake include：
One cylinder body, the cylinder body have an accommodating space；
One piston, the piston are arranged in the accommodating space；
One return spring, the return spring are arranged in the accommodating space, and, the return spring and the piston
Connection；
One piston shaft, one end of the piston shaft are connected with the piston, and the return spring acts on the piston,
So that the piston shaft parallel motion；
One parking stroke block, the parking stroke block are connected with the other end of the piston shaft, and the parking stroke block
Under the parallel motion of the piston shaft so that the switch opening and closing of the parking stroke block；
One electrodynamic pump, the electrodynamic pump are connected with the cylinder body, and, the electrodynamic pump provides hydraulic pressure and inputs into the cylinder body
It is interior.
Preferably, the parking brake further includes：Parking braking control valve, the parking braking control valve and the electricity
Dynamic pump connection, the parking braking control valve control the electrodynamic pump to provide hydraulic pressure to the cylinder body.
Preferably, the parking brake further includes：Parking indicator light, the parking indicator light and the parking stroke block
Connection, and the switch opening and closing of the parking stroke block is consistent with the opening and closing of parking indicator light.
Preferably, the parking brake further includes：It is hydraulic control in the cylinder body.
Preferably, the parking brake further includes：The return spring is disc spring.
Second aspect, an embodiment of the present invention provides a kind of full electric drive offroad vehicle, the offroad vehicle includes a parking system
Dynamic device, wherein, the parking brake includes：
One cylinder body, the cylinder body have an accommodating space；
One piston, the piston are arranged in the accommodating space；
One return spring, the return spring are arranged in the accommodating space, and, the return spring and the piston
Connection；
One piston shaft, one end of the piston shaft are connected with the piston, and the return spring acts on the piston,
So that the piston shaft parallel motion；
One parking stroke block, the parking stroke block are connected with the other end of the piston shaft, and the parking stroke block
Under the parallel motion of the piston shaft so that the switch opening and closing of the parking stroke block；
One electrodynamic pump, the electrodynamic pump are connected with the cylinder body, and, the electrodynamic pump provides hydraulic pressure and inputs into the cylinder body
It is interior.
Preferably, the parking brake further includes：Parking braking control valve, the parking braking control valve and the electricity
Dynamic pump connection, the parking braking control valve control the electrodynamic pump to provide hydraulic pressure to the cylinder body.
Preferably, the parking brake further includes：Parking indicator light, the parking indicator light and the parking stroke block
Connection, and the switch opening and closing of the parking stroke block is consistent with the opening and closing of parking indicator light.
Preferably, the parking brake further includes：It is hydraulic control in the cylinder body.
Preferably, the parking brake further includes：The return spring is disc spring.
Said one or multiple technical solutions in the embodiment of the present invention, at least have following one or more technology effects
Fruit：
1st, an embodiment of the present invention provides one kind to take turns side electric drive retarder parking brake, the parking brake bag
Include：One cylinder body, the cylinder body have an accommodating space；One piston, the piston are arranged in the accommodating space；One return bullet
Spring, the return spring are arranged in the accommodating space, and, the return spring is connected with the piston；One piston shaft, institute
The one end for stating piston shaft is connected with the piston, and the return spring acts on the piston so that the piston shaft is parallel
Movement；One parking stroke block, the parking stroke block are connected with the other end of the piston shaft, and the parking stroke block is in institute
Under the parallel motion for stating piston shaft so that the switch opening and closing of the parking stroke block；One electrodynamic pump, the electrodynamic pump and the cylinder
Body connects, and, the electrodynamic pump provides hydraulic pressure and inputs into the cylinder body.Solve of the prior art due in the prior art two
Kind parking braking pattern can not all meet steering and driving axle and the technical problem of single bridge driving or electric drive automobile, realize full electricity
Off-road vehicle transmission system parking braking is driven, it is compact-sized, efficiently use space, the technology effect of effective collection vehicle information
Fruit.
2nd, by parking braking control valve, the parking braking control valve is connected the present invention with the electrodynamic pump, described to stay
Car brake control valve controls the electrodynamic pump to provide hydraulic pressure to the cylinder body.Solve of the prior art due in the prior art two
Kind parking braking pattern can not all meet steering and driving axle and the technical problem of single bridge driving or electric drive automobile, can using hydraulic pressure
Realize gapless driving, stable movement, device volume is small, efficiently uses the technique effect in space.
3rd, the present invention is by parking indicator light, and the parking indicator light is connected with the parking stroke block, and the parking
The switch opening and closing of stroke block is consistent with the opening and closing of parking indicator light.Solve it is of the prior art due in the prior art two kinds stay
Car braking pattern can not all meet steering and driving axle and the technical problem of single bridge driving or electric drive automobile, further reach effective
Parking information is gathered, and with the technique effect for reminding feedback.
4th, the present invention is disc spring by the return spring.Solve of the prior art due to two kinds of parkings in the prior art
Braking pattern can not all meet steering and driving axle and the technical problem of single bridge driving or electric drive automobile, and the disc spring has load
Greatly, the characteristics of stroke is short, and required space is small, ensure that the requirement of the big accurate hoisting machinery of load, realizes full electric drive
The technique effect of Off-road vehicle transmission system parking braking.
5th, an embodiment of the present invention provides a kind of full electric drive offroad vehicle, the offroad vehicle to include a parking brake, its
In, the parking brake includes：One cylinder body, the cylinder body have an accommodating space；One piston, the piston are arranged on described
In accommodating space；One return spring, the return spring are arranged in the accommodating space, and, the return spring with it is described
Piston connects；One piston shaft, one end of the piston shaft are connected with the piston, and the return spring acts on the work
Plug so that the piston shaft parallel motion；One parking stroke block, the other end of the parking stroke block and the piston shaft connect
Connect, and the parking stroke block is under the parallel motion of the piston shaft so that the switch opening and closing of the parking stroke block；One electricity
Dynamic pump, the electrodynamic pump are connected with the cylinder body, and, the electrodynamic pump provides hydraulic pressure and inputs into the cylinder body.Solve existing
It can not all meet steering and driving axle and single bridge driving or electric drive due to two kinds of parking braking patterns in the prior art in technology
The technical problem of automobile, realizes full electric drive Off-road vehicle transmission system parking braking, compact-sized, efficiently uses sky
Between, parking braking information is effectively gathered, the technique effect with pressure alarm protective device.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention,
And can be practiced according to the content of specification, and in order to allow above and other objects of the present invention, feature and advantage can
Become apparent, below especially exemplified by the embodiment of the present invention.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, drawings in the following description are this hairs
Some bright embodiments, for those of ordinary skill in the art, without creative efforts, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is a kind of operation principle schematic diagram for taking turns side electric drive retarder parking brake in the embodiment of the present invention；
Fig. 2 is a kind of cross-sectional view of the structure for taking turns side electric drive retarder parking brake in the embodiment of the present invention.
Description of reference numerals：
1- parking braking control valves；2- electrodynamic pumps；3- cylinder bodies；4- pistons；5- return springs；6- piston shafts；7- parking rows
Cheng Kaiguan；8- parking indicator lights；9- parking braking disks；10- park tooth sets；11- brake pads；12- sender sets；13- parking springs；
14- lubricating oil pipes.
Embodiment
An embodiment of the present invention provides one kind take turns side electric drive retarder parking brake, solve it is of the prior art by
It can not all meet steering and driving axle and the technology of single bridge driving or electric drive automobile in two kinds of parking braking patterns in the prior art
Problem, realizes full electric drive Off-road vehicle transmission system parking braking, compact-sized, efficiently uses space, effectively collection
The technique effect of information of vehicles.
Technical solution in the embodiment of the present invention, overall structure are as follows：One cylinder body, the cylinder body have an accommodating space；
One piston, the piston are arranged in the accommodating space；One return spring, the return spring are arranged on the accommodating space
It is interior, and, the return spring is connected with the piston；One piston shaft, one end of the piston shaft are connected with the piston, and institute
State return spring and act on the piston so that the piston shaft parallel motion；One parking stroke block, the parking stroke block with
The other end connection of the piston shaft, and the parking stroke block is under the parallel motion of the piston shaft so that the parking
The switch opening and closing of stroke block；One electrodynamic pump, the electrodynamic pump are connected with the cylinder body, and, the electrodynamic pump provides hydraulic pressure input
Into in the cylinder body.Solve of the prior art since two kinds of parking braking patterns in the prior art can not all meet to turn to driving
Bridge and the technical problem of single bridge driving or electric drive automobile, realize full electric drive Off-road vehicle transmission system parking braking,
It is compact-sized, efficiently use space, the technique effect of effective collection vehicle information.
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical solution in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
All other embodiments obtained without making creative work, belong to the scope of protection of the invention.
Embodiment one
An embodiment of the present invention provides one kind to take turns side electric drive retarder parking brake, please refers to Fig.1 and Fig. 2, institute
Stating parking brake includes：
One cylinder body 3, the cylinder body 3 have an accommodating space；
One piston 4, the piston 4 are arranged in the accommodating space；
One return spring 5, the return spring 5 are arranged in the accommodating space, and, the return spring 5 with it is described
Piston 4 connects；
Further, the parking brake further includes：It is hydraulic control in the cylinder body 3, the return spring 5 is dish
Spring.
Specifically, there is an accommodating space in the cylinder body 3, the piston 4, institute is set in the accommodating space
It is hydraulic control to state in cylinder body 3, has the characteristics that light-weight, small, motional inertia is small using hydraulic control, the return bullet
Spring 5 is arranged in the accommodating space, and, the return spring 5 is connected with the piston 4, and piston 4 passes described in hydraulic control
It is dynamic, and pressure is applied to the return spring 5.Wherein, the return spring 5 is disc spring, and the piston 4 can be helped to return to original
Beginning operating position, the disc spring has the characteristics of load is big, and stroke is short, and required space is small, ensure that the big accurate heavy-duty machine of load
The requirement of tool, realizes the technique effect of full electric drive Off-road vehicle transmission system parking braking.The disc spring is with staying
Car brake disc 9 is connected by brake pad 11, increases drag friction resistance, in the appearance surface cover park tooth of the parking braking disk 9
Set 10, further increases the frictional resistance in parking braking, and when preventing that vehicle from braking, locking occurs in the parking braking disk 9,
Lose brake force.
One piston shaft 6, one end of the piston shaft 6 are connected with the piston 4, and the return spring 5 act on it is described
Piston 4 so that 6 parallel motion of piston shaft；
One parking stroke block 7, the parking stroke block 7 is connected with the other end of the piston shaft 6, and the parking stroke
Block 7 is under the parallel motion of the piston shaft 6 so that the switch opening and closing of the parking stroke block 7；
One electrodynamic pump 2, the electrodynamic pump 2 are connected with the cylinder body 3, and, the electrodynamic pump 2 provides hydraulic pressure and inputs into described
In cylinder body 3.
Further, the parking brake further includes：
Parking braking control valve 1, the parking braking control valve 1 are connected with the electrodynamic pump 2, the parking braking control
Valve 1 controls the electrodynamic pump 2 to provide hydraulic pressure to the cylinder body 3.
Specifically, one end of the piston shaft 6 is connected with the piston 4, the parking braking control valve 1 and the electricity
The dynamic connection of pump 2, hydraulic pressure is provided by electrodynamic pump 2 described in the open and close controlling of the parking braking control valve 1 to the cylinder body 3.For
The work of the cooperation electrodynamic pump 2 uses, and lubricating oil pipe 14 is connected on the working output shaft of the electrodynamic pump 2.The electricity
Dynamic pump 2 is connected with the cylinder body 3, and, the offer of electrodynamic pump 2 hydraulic pressure is inputted into acting on the piston 4 in the cylinder body 3,
And the return spring 5 acts on the piston 4 so that 6 parallel motion of piston shaft.The parking stroke block 7 with it is described
The other end connection of piston shaft 6, and the parking stroke block 7 is under the parallel motion of the piston shaft 6 so that the parking row
The switch opening and closing of journey block 7, the switch of the parking stroke block 7 belong to normally closed type switch.The cylinder body 3 also connects with parking spring 13
Connect, for buffering reaction force of the parking braking to cylinder body, have the function that to protect parking brake.
Further, the parking brake further includes：
Parking indicator light 8, the parking indicator light 8 are connected with the parking stroke block 7, and the parking stroke block 7
Switch opening and closing is consistent with the opening and closing of parking indicator light 8.
Specifically, the parking indicator light 8 is connected with the parking stroke block 7, sender set 12 and the parking stroke
Block 7 is connected by the piston shaft 6, and the switch opening and closing of the parking stroke block 7 is consistent with the opening and closing of parking indicator light 8,
The sender set 12 has the function that to protect circuit, while can send parking brake signals to the parking stroke block 7, and
The parking indicator light 8 is acted on, there is alarm and protection.
Embodiment two
An embodiment of the present invention provides a kind of full electric drive offroad vehicle, please refers to Fig.1 and Fig. 2, the offroad vehicle include one
Parking brake.
Wherein, by wheel side electric drive retarder and the integrated design of parking brake, the wheel side electric drive retarder
Containing unilateral each a set of input/output port, per side mechanism with parking braking function, parking brake is arranged on to be connected with driving motor
The input terminal connect.
Wherein, the parking brake includes：
One cylinder body 3, the cylinder body 3 have an accommodating space；
One piston 4, the piston 4 are arranged in the accommodating space；
One return spring 5, the return spring 5 are arranged in the accommodating space, and, the return spring 5 with it is described
Piston 4 connects；
Further, the parking brake further includes：It is hydraulic control in the cylinder body 3, the return spring 5 is dish
Spring.
One piston shaft 6, one end of the piston shaft 6 are connected with the piston 4, and the return spring 5 act on it is described
Piston 4 so that 6 parallel motion of piston shaft；
One parking stroke block 7, the parking stroke block 7 is connected with the other end of the piston shaft 6, and the parking stroke
Block 7 is under the parallel motion of the piston shaft 6 so that the switch opening and closing of the parking stroke block 7；
One electrodynamic pump 2, the electrodynamic pump 2 are connected with the cylinder body 3, and, the electrodynamic pump 2 provides hydraulic pressure and inputs into described
In cylinder body 3.
Further, the parking brake further includes：
Parking braking control valve 1, the parking braking control valve 1 are connected with the electrodynamic pump 2, the parking braking control
Valve 1 controls the electrodynamic pump 2 to provide hydraulic pressure to the cylinder body 3.
Further, the parking brake further includes：
Parking indicator light 8, the parking indicator light 8 are connected with the parking stroke block 7, and the parking stroke block 7
Switch opening and closing is consistent with the opening and closing of parking indicator light 8.
A kind of specific connection mode of wheel side electric drive retarder parking brake in earlier figures 1, Fig. 2 embodiments 1
A kind of full electric drive offroad vehicle of the present embodiment is equally applicable to instantiation, is slowed down by foregoing to one kind wheel side electric drive
The detailed description of device parking brake, those skilled in the art are clear that in the present embodiment that a kind of full electric drive is got over
Wild car includes the implementation of a parking brake, so in order to illustrate the succinct of book, this will not be detailed here.
Embodiment three
An embodiment of the present invention provides it is a kind of take turns side electric drive retarder parking brake parking braking control principle,
Please refer to Fig.1.
When parking braking control valve 1 is off, hydraulic pressure is zero in system, living under the action of return spring 5
The drive piston shaft 6 of plug 4 is compressed into the left end of diagram cylinder body 3, and piston shaft 6 is separated with parking stroke block 7, the parking stroke block
7 switches of parking indicator light 8 connected are opened, and are now in the state of parking braking；When connecting parking braking control valve 1,
Electrodynamic pump 2 provides hydraulic pressure and enters in cylinder body 3, in system under hydraulic action, overcomes the compression stress of return spring 5 and promotes piston
4 drive piston shaft 6 mobile to diagram right side, when piston shaft 6 touches parking stroke block 7, what the parking stroke block 7 was connected
The switch of parking indicator light 8 is closed, and completes to release the operation of parking braking.
The technical solution provided in the embodiment of the present application, has at least the following technical effects or advantages：
1st, an embodiment of the present invention provides one kind to take turns side electric drive retarder parking brake, the parking brake bag
Include：One cylinder body, the cylinder body have an accommodating space；One piston, the piston are arranged in the accommodating space；One return bullet
Spring, the return spring are arranged in the accommodating space, and, the return spring is connected with the piston；One piston shaft, institute
The one end for stating piston shaft is connected with the piston, and the return spring acts on the piston so that the piston shaft is parallel
Movement；One parking stroke block, the parking stroke block are connected with the other end of the piston shaft, and the parking stroke block is in institute
Under the parallel motion for stating piston shaft so that the switch opening and closing of the parking stroke block；One electrodynamic pump, the electrodynamic pump and the cylinder
Body connects, and, the electrodynamic pump provides hydraulic pressure and inputs into the cylinder body.Solve of the prior art due in the prior art two
Kind parking braking pattern can not all meet steering and driving axle and the technical problem of single bridge driving or electric drive automobile, realize full electricity
Off-road vehicle transmission system parking braking is driven, it is compact-sized, efficiently use space, the technology effect of effective collection vehicle information
Fruit.
2nd, by parking braking control valve, the parking braking control valve is connected the present invention with the electrodynamic pump, described to stay
Car brake control valve controls the electrodynamic pump to provide hydraulic pressure to the cylinder body.Solve of the prior art due in the prior art two
Kind parking braking pattern can not all meet steering and driving axle and the technical problem of single bridge driving or electric drive automobile, can using hydraulic pressure
Realize gapless driving, stable movement, device volume is small, efficiently uses the technique effect in space.
3rd, the present invention is by parking indicator light, and the parking indicator light is connected with the parking stroke block, and the parking
The switch opening and closing of stroke block is consistent with the opening and closing of parking indicator light.Solve it is of the prior art due in the prior art two kinds stay
Car braking pattern can not all meet steering and driving axle and the technical problem of single bridge driving or electric drive automobile, further reach effective
Parking information is gathered, and with the technique effect for reminding feedback.
4th, the present invention is disc spring by the return spring.Solve of the prior art due to two kinds of parkings in the prior art
Braking pattern can not all meet steering and driving axle and the technical problem of single bridge driving or electric drive automobile, and the disc spring has load
Greatly, the characteristics of stroke is short, and required space is small, ensure that the requirement of the big accurate hoisting machinery of load, realizes full electric drive
The technique effect of Off-road vehicle transmission system parking braking.
5th, an embodiment of the present invention provides a kind of full electric drive offroad vehicle, the offroad vehicle to include a parking brake, its
In, the parking brake includes：One cylinder body, the cylinder body have an accommodating space；One piston, the piston are arranged on described
In accommodating space；One return spring, the return spring are arranged in the accommodating space, and, the return spring with it is described
Piston connects；One piston shaft, one end of the piston shaft are connected with the piston, and the return spring acts on the work
Plug so that the piston shaft parallel motion；One parking stroke block, the other end of the parking stroke block and the piston shaft connect
Connect, and the parking stroke block is under the parallel motion of the piston shaft so that the switch opening and closing of the parking stroke block；One electricity
Dynamic pump, the electrodynamic pump are connected with the cylinder body, and, the electrodynamic pump provides hydraulic pressure and inputs into the cylinder body.Solve existing
It can not all meet steering and driving axle and single bridge driving or electric drive due to two kinds of parking braking patterns in the prior art in technology
The technical problem of automobile, realizes full electric drive Off-road vehicle transmission system parking braking, compact-sized, efficiently uses sky
Between, parking braking information is effectively gathered, the technique effect with pressure alarm protective device.
Although preferred embodiments of the present invention have been described, but those skilled in the art once know basic creation
Property concept, then can make these embodiments other change and modification.So appended claims be intended to be construed to include it is excellent
Select embodiment and fall into all change and modification of the scope of the invention.
Obviously, those skilled in the art can carry out the embodiment of the present invention various modification and variations without departing from this hair
The spirit and scope of bright embodiment.In this way, if these modifications and variations of the embodiment of the present invention belong to the claims in the present invention
And its within the scope of equivalent technologies, then the present invention is also intended to comprising including these modification and variations.
Claims (10)
1. one kind wheel side electric drive retarder parking brake, it is characterised in that the parking brake includes：
One cylinder body, the cylinder body have an accommodating space；
One piston, the piston are arranged in the accommodating space；
One return spring, the return spring are arranged in the accommodating space, and, the return spring connects with the piston
Connect；
One piston shaft, one end of the piston shaft are connected with the piston, and the return spring acts on the piston so that
The piston shaft parallel motion；
One parking stroke block, the parking stroke block are connected with the other end of the piston shaft, and the parking stroke block is in institute
Under the parallel motion for stating piston shaft so that the switch opening and closing of the parking stroke block；
One electrodynamic pump, the electrodynamic pump are connected with the cylinder body, and, the electrodynamic pump provides hydraulic pressure and inputs into the cylinder body.
2. parking brake as claimed in claim 1, it is characterised in that the parking brake further includes：
Parking braking control valve, the parking braking control valve are connected with the electrodynamic pump, the parking braking control valve control
The electrodynamic pump provides hydraulic pressure to the cylinder body.
3. parking brake as claimed in claim 1, it is characterised in that the parking brake further includes：
Parking indicator light, the parking indicator light are connected with the parking stroke block, and the switch opening and closing of the parking stroke block
It is consistent with the opening and closing of parking indicator light.
4. parking brake as claimed in claim 1, it is characterised in that the parking brake further includes：
It is hydraulic control in the cylinder body.
5. parking brake as claimed in claim 1, it is characterised in that the parking brake further includes：
The return spring is disc spring.
A kind of 6. full electric drive offroad vehicle, it is characterised in that the offroad vehicle includes a parking brake, wherein, the parking
Brake includes：
One cylinder body, the cylinder body have an accommodating space；
One piston, the piston are arranged in the accommodating space；
One return spring, the return spring are arranged in the accommodating space, and, the return spring connects with the piston
Connect；
One piston shaft, one end of the piston shaft are connected with the piston, and the return spring acts on the piston so that
The piston shaft parallel motion；
One parking stroke block, the parking stroke block are connected with the other end of the piston shaft, and the parking stroke block is in institute
Under the parallel motion for stating piston shaft so that the switch opening and closing of the parking stroke block；
One electrodynamic pump, the electrodynamic pump are connected with the cylinder body, and, the electrodynamic pump provides hydraulic pressure and inputs into the cylinder body.
7. full electric drive offroad vehicle as claimed in claim 6, it is characterised in that the parking brake further includes：
Parking braking control valve, the parking braking control valve are connected with the electrodynamic pump, the parking braking control valve control
The electrodynamic pump provides hydraulic pressure to the cylinder body.
8. full electric drive offroad vehicle as claimed in claim 6, it is characterised in that the parking brake further includes：
Parking indicator light, the parking indicator light are connected with the parking stroke block, and the switch opening and closing of the parking stroke block
It is consistent with the opening and closing of parking indicator light.
9. full electric drive offroad vehicle as claimed in claim 6, it is characterised in that the parking brake further includes：
It is hydraulic control in the cylinder body.
10. full electric drive offroad vehicle as claimed in claim 6, it is characterised in that the parking brake further includes：
The return spring is disc spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711335718.6A CN108019448A (en) | 2017-12-14 | 2017-12-14 | One kind wheel side electric drive retarder parking brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711335718.6A CN108019448A (en) | 2017-12-14 | 2017-12-14 | One kind wheel side electric drive retarder parking brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108019448A true CN108019448A (en) | 2018-05-11 |
Family
ID=62073719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711335718.6A Pending CN108019448A (en) | 2017-12-14 | 2017-12-14 | One kind wheel side electric drive retarder parking brake |
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| Country | Link |
|---|---|
| CN (1) | CN108019448A (en) |
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| CN106015406A (en) * | 2016-07-11 | 2016-10-12 | 中车戚墅堰机车车辆工艺研究所有限公司 | Transmission and braking integrated device for vehicle |
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| CN106594124A (en) * | 2015-10-16 | 2017-04-26 | 李德 | Hydraulic driving system used for brake and composed of motor, deceleration mechanism, screw rod and oil cylinder |
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