CN109080616A - Guide's braking system for move vehicle safety traffic - Google Patents
Guide's braking system for move vehicle safety traffic Download PDFInfo
- Publication number
- CN109080616A CN109080616A CN201811104849.8A CN201811104849A CN109080616A CN 109080616 A CN109080616 A CN 109080616A CN 201811104849 A CN201811104849 A CN 201811104849A CN 109080616 A CN109080616 A CN 109080616A
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- chamber
- brake body
- brake
- hydraulic oil
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- 239000010720 hydraulic oil Substances 0.000 claims abstract description 86
- 230000007246 mechanism Effects 0.000 claims abstract description 73
- 239000003921 oil Substances 0.000 claims description 58
- 238000013016 damping Methods 0.000 claims description 18
- 239000002828 fuel tank Substances 0.000 claims description 16
- 238000010992 reflux Methods 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 5
- 241000222712 Kinetoplastida Species 0.000 claims description 2
- 238000004891 communication Methods 0.000 description 7
- 239000012530 fluid Substances 0.000 description 7
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 230000008676 import Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/66—Electrical control in fluid-pressure brake systems
- B60T13/68—Electrical control in fluid-pressure brake systems by electrically-controlled valves
- B60T13/686—Electrical control in fluid-pressure brake systems by electrically-controlled valves in hydraulic systems or parts thereof
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
- Regulating Braking Force (AREA)
Abstract
The invention discloses a kind of guide's braking systems for move vehicle safety traffic, comprising: brake disc is set on the wheel hub of move vehicle；Force application mechanism, guide's brake body of the main brake body with plate-like and plate-like are braked, the main brake body and guide's brake body form certain interval with the actuator dial；Brake treadle mechanism comprising pedal and control unit, the control unit trample state locating for pedal for detecting；Hydraulic pressure supply mechanism tramples state according to locating for pedal detected by the control unit and provides hydraulic oil to braking force application mechanism；Wherein: when the pedal, which switches to, tramples state, the braking force application mechanism makes guide's brake body movement speed be greater than the movement speed of the main brake body so that guide's brake body is implemented to activate prior to the main brake body to the brake disc using hydraulic oil provided by the hydraulic pressure supply mechanism.
Description
Technical field
The present invention relates to the braking technology field of move vehicle, in particular to a kind of elder generation for move vehicle safety traffic
Lead braking system.
Background technique
The braking system of move vehicle is to guarantee the core of vehicle driving safety.Currently, car (one kind of move vehicle)
Braking system mostly use hydraulic braking.Specifically, the braking system of car includes: brake disc, brake treadle mechanism, hydraulic confession
To mechanism (including hydraulic pump, hydraulic oil container and relevant control valve etc.) and braking force application mechanism.Wherein, brake disc is set to
On the wheel hub of vehicle；Braking force application mechanism generally includes a hydraulic cylinder and a brake block, and brake block is arranged in hydraulic oil
On the piston rod of cylinder, and the setting opposite with brake disc interval；Brake treadle mechanism includes pedal and control unit (control
Component is for detecting the depth that pedal is trampled), the pedal trampled passes through control unit to control hydraulic pressure supply mechanism, so that
Hydraulic pressure supply mechanism provides hydraulic oil for hydraulic cylinder, and then keeps piston rod mobile towards brake disc, so that brake block is tight against system
Moving plate, with by be formed by between brake disc friction power limit disc rotation, and then make vehicle remain stationary state or
Person stops the vehicle of traveling.
It is readily appreciated that ground, vehicle be in low temperature environment (e.g., vehicle in winter) or vehicle is chronically at idle state, use
Become larger in the viscosity for the hydraulic oil for providing fluid power, for example, in winter, long-time parked vehicle is hydraulic when just starting starting
The oil temperature of oil is lower, and viscosity increases.If in winter, long-time parked vehicle just travels and passes through after just starting starting
It tramples brake pedal and is braked (in fact, most drivers so drive vehicle), since the viscosity of hydraulic oil is larger,
At this point, in the unit time hydraulic pump supply hydraulic cylinder hydraulic oil amount be less than viscosity it is normal when amount, this is bound to cause
The movement speed of piston rod is smaller, cause brake block move to brake disc time extend, this meeting so that vehicle braking time
Extend, it is therefore, totally unfavorable to the safety traffic of vehicle, in particular, the viscosity (oil temperature) for hydraulic oil is still lower, and vehicle
Travel speed with larger situation, easily occur braking time extend and braking distance increase.
Summary of the invention
For the above-mentioned technical problems in the prior art, the embodiment provides one kind to be used for move vehicle
Guide's braking system of safety traffic.
In order to solve the above technical problems, the embodiment of the present invention the technical solution adopted is that:
A kind of guide's braking system for move vehicle safety traffic, comprising:
Brake disc is set on the wheel hub of move vehicle；
Brake force application mechanism, guide's brake body of the main brake body with plate-like and plate-like, the main brake body and elder generation
It leads brake body and forms certain interval with the actuator dial；
Brake treadle mechanism comprising pedal and control unit, the control unit are stepped on locating for pedal for detecting
Step on state；
Hydraulic pressure supply mechanism tramples state according to locating for pedal detected by the control unit and applies to braking
Force mechanisms provide hydraulic oil；Wherein:
When the pedal, which switches to, tramples state, the braking force application mechanism is provided using the hydraulic pressure supply mechanism
Hydraulic oil make guide's brake body movement speed be greater than the movement speed of the main brake body so that guide brake body is first
The brake disc is implemented to activate in the main brake body.
Preferably, the braking force application mechanism further include:
Cylinder body；
Piston is set in the cylinder body, and the cylinder interior is divided into first chamber and second chamber；
Piston rod, first end are connected to the piston, and second end passes through the second chamber to stretch out the cylinder body,
The main brake body is set to the second end of the piston rod, opens up slide opening from the piston to main brake body direction；
Slide core is set in the slide opening and can slide along the slide opening；
Guide's push rod, first end are connected to the slide core, and second end wears the slide opening and stretches to the main brake
Body, guide's brake body are set to the second end of guide's push rod；
Hydraulic damping mechanism is used to limit the flow of the hydraulic oil flowed out from the second chamber, when described hydraulic
When feed mechanism provides hydraulic oil to the first chamber, provided hydraulic oil pushes against the slide core and is greater than its speed and pushes away
Speed to the piston.
Preferably, the difference of area of the piston towards the first chamber and the area towards second chamber is less than described
Area of the slide core towards the first chamber.
Preferably, the hydraulic pressure supply mechanism includes:
Fuel tank is used to hold hydraulic oil；
Hydraulic pump is connected to fuel tank,
Solenoid directional control valve is connected to hydraulic pump, and the solenoid directional control valve, which has, makes hydraulic oil enter first chamber, and makes
The first state of hydraulic oil reflux fuel tank in second chamber；And hydraulic oil is made to enter second chamber, and make in first chamber
Hydraulic oil reflux fuel tank the second state；Wherein:
When pushes pedals, the control unit control solenoid directional control valve switches to first state, and when pedal rebound,
The control unit controls the solenoid directional control valve and switches to the second state.
Preferably, reset spring is also arranged on guide's push rod.
Preferably, the hydraulic damping mechanism is set to the pipeline between the second chamber and the solenoid directional control valve
On.
Preferably,
Pipeline between the second chamber and the solenoid directional control valve is formed with the first pipeline and the second pipeline；
The hydraulic damping mechanism is throttle valve, and the throttle valve is set on first pipeline；
Check valve is provided on second pipeline, the outlet of the individual event valve is connected to the second chamber.
Compared with prior art, the beneficial effect of guide's braking system disclosed by the invention for move vehicle safety traffic
Fruit is the present invention by adding guide's brake body, and produced under unit displacement compared to main brake body using guide's brake body
The bigger feature of displacement, when encounter because the viscosity of hydraulic oil is big be brake the hydraulic oil that force application mechanism provides flow it is smaller
The case where when, the provided less hydraulic oil by drive needed for flow it is less can realize fast move guide braking
Body is also capable of the fast braking of complete brake disc, to improve the traveling peace of the vehicle under low temperature environment and starting time short situation
Quan Xing.
Detailed description of the invention
Fig. 1 is that the structure provided by the embodiment of the present invention for guide's braking system of move vehicle safety traffic is shown
It is intended to (pedal is in and does not trample state).
Fig. 2 is the enlarged view of the local A of Fig. 1.
Fig. 3 is that the structure provided by the embodiment of the present invention for guide's braking system of move vehicle safety traffic is shown
It is intended to (pedal is in state of trampling, and guide's brake body arrives at brake disc, and main brake body does not arrive at brake disc).
Fig. 4 is the enlarged view of the local B of Fig. 3.
Fig. 5 is that the structure provided by the embodiment of the present invention for guide's braking system of move vehicle safety traffic is shown
(pedal is in and tramples state intention, and guide's brake body and main brake body arrive at brake disc and applied enough brakings
Power).
Fig. 6 is the enlarged view of the Local C of Fig. 5.
Fig. 7 is that the structure provided by the embodiment of the present invention for guide's braking system of move vehicle safety traffic is shown
It is intended to (pedal is in rebound state).
In figure:
10- brake disc；20- brakes force application mechanism；21- cylinder body；211- first chamber；212- second chamber；22- piston；
221- piston rod；23- slide core；231- guide's push rod；24- slide opening；25- main brake body；26- guide's brake body；27- resets bullet
Spring；28- hydraulic damping mechanism；The first retaining ring of 291-；The second retaining ring of 292-；30- hydraulic pressure supply mechanism；31- hydraulic pump；32- electricity
Magnetic reversal valve；33- check valve；The first pipeline of 341-；The second pipeline of 342-；35- fuel tank；40- brake treadle mechanism；41- pedal；
42- control unit；50- means of communication；51- valve body；52- valve chamber；53- spool；54- preloading spring；60- electromagnetic switch valve；70-
Power mitigates mechanism；71- crosses oil body；The first oil duct of 711-；The second oil duct of 712-；713- third oil duct；The 4th oil duct of 714-；
The 5th oil duct of 715-；716- first compares chamber；717- second compares chamber；718- slides chamber；719- necking；72- slip ratio is to core；
73- compares spring.
Specific embodiment
Technical solution in order to enable those skilled in the art to better understand the present invention, with reference to the accompanying drawing and specific embodiment party
Formula elaborates to the present invention.
The embodiment of the present invention discloses a kind of guide's braking system for move vehicle safety traffic, guide's braking system
System is especially suitable for passenger car, e.g., pony car.Guide's braking system use hydraulic braking, brake fluid (namely:
Hydraulic oil) temperature is lower, braking effect is especially prominent in the biggish situation of viscosity.
As shown in Fig. 1 to 7, which includes brake disc 10, braking force application mechanism 20,41 mechanism of brake pedal
40 and hydraulic pressure supply mechanism 30.
Brake disc 10 is set on the wheel hub of move vehicle, and the disk of the brake disc 10 is arranged to wear-resisting and with higher
Coefficient of friction.Guide's brake body 26 of main brake body 25 and plate-like of the force application mechanism 20 including driving part and plate-like is braked,
When vehicle is not braked, makes the main brake body 25 and guide's brake body 26 and brake disc 10 relatively and form certain interval；
When needing to brake vehicle, driving part for drive main brake body 25 and guide brake towards brake disc 10 move with
It is contacted with brake disc 10 and forms friction to brake to brake disc 10.Hydraulic pressure supply component is used to provide liquid for driving part
Pressure oil, so that hydraulic oil driving main brake body 25 and guide's brake body 26 (it should be understood that can be according to being provided for driving part
Oil circuit is different and main brake body 25 and guide's brake body 26 is driven to form different moving directions, that is to say, hydraulic pressure supply component
Main brake body 25 and guide's brake body 26 can also be made towards the side far from brake disc 10 by providing hydraulic oil for driving part
It moves up and contacts the braking to brake disc 10 to separate with brake disc 10).41 mechanism 40 of brake pedal includes being set to drive
Indoor brake pedal 41 and control unit 42 are sailed, the control unit 42 is for detecting the state that brake pedal 41 is trampled
(that is, control unit 42 is for detecting whether brake pedal 41 is trampled), the control unit 42 is according to brake pedal 41
Whether by trampling the hydraulic oil of different oil circuits is provided to control hydraulic pressure supply mechanism 30 as driving part, to obtain following control
As a result: when pedal 41 is trampled, hydraulic oil provided by hydraulic pressure supply mechanism 30 makes main brake body 25 and guide's brake body
26 realize the braking to brake disc 10 towards brake disc 10 is mobile finally to contact with brake disc 10；When pedal 41 reset or
Pedal 41 is in and does not trample state, and the oil circuit of hydraulic oil provided by hydraulic pressure supply mechanism 30 makes main brake body 25 and guide's system
Kinetoplast 26 releases the braking to brake disc 10 far from brake disc 10.In the present embodiment, braking force application mechanism 20 utilizes hydraulic
The driving main brake body 25 of hydraulic oil following manner provided by feed mechanism 30 and guide's brake body 26: make hydraulic oil variety of priority driven
The speed of guide's brake body 26 and driving guide's brake body 26 is greater than main brake body 25, so that guide's brake body 26 contacts system first
Moving plate 10 is to brake brake disc 10, and main brake body 25 lags behind guide's brake body 26 and contacts brake disc 10.In this reality
It applies in example, needs to make flow of 10 Moving Unit of guide's brake disc apart from required hydraulic oil lower than main brake disk 10.In this way, if will
Main brake body 25 is compared to brake block in the prior art (to be only had a brake block to make brake disc 10 in the prior art
It is dynamic), then the time of the arrival brake disc 10 of guide's brake body 26 is just shorter than main brake body 25.
The present invention utilizes guide's brake body 26 compared to main brake body 25 in unit position by adding guide's brake body 26
Move it is lower caused by the bigger feature of displacement, when encountering, because the viscosity of hydraulic oil is big, to be that braking force application mechanism 20 provides hydraulic
When the lesser situation of flow of oil, which can realize quick shifting by the way that flow is less needed for driving
Dynamic guide's brake body 26 is also capable of the fast braking of complete brake disc 10, to improve in low temperature environment and starting time short feelings
The driving safety of vehicle under condition.
As depicted in figs. 1 and 2, a preferred embodiment of the present invention, which provides, a kind of can be realized the upper of two brake bodies
The braking force application mechanism 20 of acting characteristic is stated, the driving part in the braking force application mechanism 20 includes: cylinder body 21, piston 22, lives
Stopper rod 211, slide core 23, guide's push rod 231, reset spring 27 and hydraulic damping mechanism 28.In the present embodiment, hydraulic pressure supply
Mechanism 30 includes fuel tank 35, hydraulic pump 31, solenoid directional control valve 32 and other control elements.
As depicted in figs. 1 and 2, in braking force application mechanism 20: cylinder body 21 is arranged on vehicle suspension or wheel hub；Piston
22 are set in cylinder body 21 and cylinder body 21 are divided into first chamber 211 and second chamber 212；The first end one of piston rod 211
It is body formed on cylinder body 21 or being threadedly connected on cylinder body 21, the second end of the piston rod 211, which passes through second chamber 212, (to be made
Obtain second chamber 212 and be formed as rod chamber) and stretch out outside cylinder body 21 and (stretched out towards 10 direction of brake disc), main brake body 25 is fixed
In the second end of cylinder body 21；From the end face towards first chamber 211 of piston 22 to main brake body 25 towards brake disc 10
End face opens up slide opening 24, and can accommodate the receipts of guide's brake body 26 in one end setting that slide opening 24 is located at main brake body 25
Cavity；Slide core 23 is arranged in slide opening 24 and forms sealing cooperation with slide opening 24, it is readily appreciated that, it is hydraulic in first chamber 211
Oil can apply fluid power to slide core 23 so to push slide core 23 mobile towards 10 direction of brake disc；The first end of guide's push rod 231 is solid
It is scheduled in slide core 23, the second end of guide's push rod 231 wears slide opening 24 and extends to main brake body 25, and guide's brake body 26 is fixed first
Lead the second end of push rod 231；One the first retaining ring 291 is set relative to the position of 23 certain distance of slide core in slide opening 24, is resetted
Spring 27 is set on guide's push rod 231 and between slide core 23 and the first retaining ring 291, in this way, in first chamber 211
When hydraulic oil not yet constructs certain pressure, spring pushing and pressing slide core 23 is located at the second end of slide opening 24, and guide's brake body 26 is stored
It is flushed in accommodating chamber, and with main brake body 25；Slide core 23 towards being provided on the slide opening 24 on the direction of first chamber 211
Second retaining ring 292, second retaining ring 292 limitation slide core 23 skid off slide opening 24.Hydraulic damping mechanism 28 and second chamber 212 connect
Logical, the effect of the hydraulic damping mechanism 28 is: for limiting the flow of the hydraulic oil flowed out from second chamber 212, and then limiting
Hydraulic oil pushing and pressing piston 22 in first chamber 211 and so that piston rod 211 is driven the too fast movement of main brake body 25, meanwhile, make
Enter slide opening 24 into the hydraulic oil in first chamber 211 to push against slide core 23, and then makes guide's brake body 26 towards brake disc 10
Mobile speed is greater than main brake body 25.
As shown in Figure 1, in hydraulic pressure supply mechanism 30: fuel tank 35 is set in vehicle and for holding hydraulic oil and recycling
Hydraulic oil；Hydraulic pump 31 is to 35 draw oil of fuel tank and as the first chamber 211 and the supply of second chamber 212 to cylinder body 21
The power source of hydraulic oil；Solenoid directional control valve 32 have the import being connect with hydraulic pump 31, the oil return opening that is connect with fuel tank 35 and
Two working holes being connected to respectively with first chamber 211 and second chamber 212；There are two the shapes that works for the solenoid directional control valve 32 tool
State, which is: first state, as shown in figure 3, for making hydraulic oil provided by hydraulic pump 31 enter the first chamber
Room 211, and make the hydraulic oil reflux fuel tank 35 in second chamber 212；Second state, as shown in Figure 1, for making 31 institute of hydraulic pump
The hydraulic oil of offer enters second chamber 212, and makes the hydraulic oil reflux fuel tank 35 in first chamber 211.Two states by
The control system of switching on or off electricity of electromagnetic coil in the solenoid directional control valve 32.In the present embodiment, the control in 41 mechanism 40 of brake pedal
Component 42 is used to control the power on/off of electromagnetic coil, so that changing electromagnetism by control unit 42 when pedal 41 is trampled
Switch to first state to valve 32, and when pedal 41 spring back or in do not trample state when, electricity is made by control unit 42
Magnetic reversal valve 32 switches to the second state.In a preferred embodiment of this embodiment, solenoid directional control valve 32 and the second chamber are connected
Branch there are two being formed on pipeline between room 212, it may be assumed that the first branch and the second branch.Hydraulic damping mechanism 28 is set to
On one pipeline 341, a check valve 33 is set on the second pipeline 342, so that the outlet of the check valve 33 and second chamber 212
Connection, it is preferable that select a throttle valve as hydraulic damping mechanism 28.
The course of work of guide's braking system disclosed in above-described embodiment is as follows:
When needing to brake the vehicle of traveling, as shown in Figure 3 and Figure 4, driver's pushes pedals 41, control unit
42 control solenoid directional control valves 32 switch to first state, and hydraulic oil will feed first chamber 211 by solenoid directional control valve 32, and enter
Hydraulic oil in first chamber 211 applies fluid power to piston 22 and slide core 23 simultaneously, and since hydraulic damping mechanism 28 limits
The discharge of the hydraulic oil of second chamber 212, and since the section that the section of first chamber 211 is greater than slide opening 24 (makes in this way
The amount of hydraulic oil required for 22 Moving Unit of piston is displaced is greater than hydraulic oil required for 23 Moving Unit of slide core is displaced
Amount), in this way, it is mobile into the hydraulic oil variety of priority driven slide core 23 in first chamber 211, and speed is greater than piston 22, and then makes
It obtains guide's brake body 26 and contacts brake disc 10 first, then, as shown in Figure 5 and Figure 6, main brake body 25 contacts brake disc immediately
10.It is braked in this way, guide's brake body 26 in a short time applies brake disc 10.
It should be noted that: although hydraulic damping mechanism 28 carries out the discharge of the hydraulic oil in second chamber 212
Limitation, still, the time that this limitation will not make main brake body 25 of the invention arrive at brake disc 10 are significantly longer than now
There is the brake block in technology to arrive at the time of brake disc 10, this is because bronze drum hydraulic pump 31 feeds the amount of the indoor hydraulic oil of chamber
The inadequate sufficient rate of inlet is also small due to viscosity is larger, even if being not provided with hydraulic damping mechanism 28, the movement speed of piston 22
It will not be very fast.
When needing to release braking, driver, which decontrols pedal 41, controls component controls electromagnetic switch as shown in Figure 1 and Figure 7
Valve 32 makes solenoid directional control valve 32 switch to the second state, and hydraulic oil provided by hydraulic pump 31 passes through solenoid directional control valve 32, unidirectional
Valve 33 (few a part of hydraulic oil also passes through throttle valve) feeds second chamber 212, the hydraulic oil pushing and pressing of fed second chamber 212
Piston 22 and make piston 22 mobile towards first chamber 211, and then drive main brake body 25 far from brake disc 10, and first chamber
Hydraulic oil in 211 fuel tank 35 that flows back by solenoid directional control valve 32, at the same time, compressed reset spring 27 is answered
Position so that slide core 23 and guide's push rod 231 are mobile towards first chamber 211, and then makes guide's brake body 26 also far from brake disc
10, and finally it is accommodated in accommodating chamber.
The advantage of above-described embodiment is:
1, the present invention is cleverly driven main brake body 25 and guide's brake body 26 by the hydraulic oil for entering an oil cylinder
It is dynamic, so that total is compact.
2, the present invention is by setting hydraulic damping mechanism 28 come so that the realization of guide's brake body 26 is faster than main brake body 25
It is differential, so that brake disc 10 can obtain brake force within the shorter time.
3, throttle valve and check valve 33 is respectively set on the first pipeline 341 and the second pipeline 342, is not only able to utilize section
Stream valve makes guide's brake body 26 can be realized the fast braking to brake disc 10, moreover, needing to release the system to brake disc 10
When dynamic, using check valve 33 to the characteristic of the smaller damping of hydraulic oil, so that hydraulic oil can smoothly enter into second chamber 212 to drive work
22 reverse movement of plug, and then smoothly main brake body 25 is cancelled to the brake force of brake disc 10.
4, guide's brake body 26 and its its guide's push rod 231 and total mobile inertia of slide core 23 is driven to be less than main brake
Body 25 and its piston rod 211 and piston 22 for driving him, so that the movement response of guide's brake body 26 compares main brake body
25 is sensitiveer, and then further shortens the actuation time of guide's brake body 26.
In a preferred embodiment of the invention, as shown in Figure 3 and Figure 4, in first chamber 211 and second chamber 212
Between be additionally provided with conduit, electromagnetic switch valve 60 and means of communication 50 are provided on conduit.The electromagnetic switch valve 60 is by making
Control unit 42 in dynamic 41 mechanism 40 of pedal controls the electromagnetic coil power on/off in electromagnetic switch valve 60 and controls electromagnetic switch
The on-off of valve 60, so that control unit 42 controls electromagnetic switch valve 60 and opens when pedal 41 is trampled, and pedal 41 is sprung back
When, control unit 42 controls electromagnetic switch valve 60 and closes.Means of communication 50 includes valve body 51, spool 53 and preloading spring 54.
Valve chamber 52 is formed in valve body 51, spool 53 is set in valve chamber 52 and can slide along valve chamber 52, and the first end of valve chamber 52 is logical
It crosses conduit to be connected to second chamber 212, preloading spring 54 is used for certain pretightning force pushing and pressing spool 53 so that 53 plugging valve of spool
The first end of chamber 52；The middle part of valve chamber 52 is connected to by conduit with first chamber 211, in this way, when hydraulic oil forces spool 53 to make
After the first end of valve chamber 52 is opened, hydraulic oil enters valve chamber 52, and enters first chamber 211 by valve chamber 52 and conduit.
The work that the electromagnetic switch valve 60 and means of communication 50 of guide's braking system provided by above-described embodiment are played
With as follows:
It is appreciated that the purpose of setting hydraulic damping mechanism 28 is not intended to allow the speed of piston 22 and main brake body 25
Movement speed lowers, but for making slide core 23 and 26 speed of guide's brake body be greater than piston 22 and main brake body 25, also
To say, when guide's brake body 26 will or and arrive at brake disc 10 when, it is desirable to main brake body 25 also can be supported timely
Up to brake disc 10.And electromagnetic switch valve 60 and means of communication 50 are played the role of just being this.
When guide's brake body 26 has arrived at brake disc 10, at this point, the hydraulic oil in first chamber 211 is mainly used for pushing and pressing work
Plug 22 is mobile, at this point, the pressure of the hydraulic oil in second chamber 212 can increase, when pressure rise to a certain extent when, hydraulic oil
It forces the spool 53 in means of communication 50 to be opened, and then makes the hydraulic oil in second chamber 212 by conduit (at this point, electromagnetism is opened
Pass is also at opening state) enter first chamber 211, the entrance of section hydraulic oil is increased into first chamber 211
The amount of hydraulic oil, and then the movement speed of piston 22 can be accelerated.
The advantage of above-described embodiment is: first chamber 211 is connected to by conduit with second chamber 212 and is set on conduit
Main brake body 25 can be improved after guide's brake body 26 arrives at brake disc 10 by setting electromagnetic switch valve 60 and means of communication 50
Movement speed, and then main brake body 25 is made also quickly to arrive at brake disc 10.
In a preferred embodiment of the invention, piston 22 towards first chamber 211 area with towards second chamber
The difference of 212 area is less than area of the slide core 23 towards first chamber 211.That is, making hydraulic oil to the fluid power of piston 22
Poor (or fluid power is reasonable) is less than hydraulic oil to the fluid power of slide core 23, so guide's brake body 26 can be made compared to main brake
Body 25 faster arrives at brake disc 10.
Guide's brake body 26 and main brake body 25 towards both in 10 moving process of brake disc, need to wish with it is the smallest when
Between arrive at brake disc 10, and then reduce brake response apply, and when both arrival brake disc 10 after, if without restriction makes two
Person is continued mobile towards brake disc 10 with original speed, and the increase of brake force is not only not too large, and thus caused by make to brake
The deformation of disk 10 and brake disc 10 can be dramatically increased with vibration caused by brake body relative friction, this certainly will be harmful to braking
's.
For this purpose, in a preferred embodiment of the invention, as shown in Figures 1 to 6, being changed in first chamber 211 with electromagnetism
Mechanism 70 is mitigated to a power is arranged between valve 32, it included oil body, slip ratio to core 72, comparison which, which mitigates mechanism 70,
Spring 73 and multiple oil ducts.Wherein, it crosses in oil body 71 and offers sliding chamber 718, slip ratio is set in sliding chamber 718 simultaneously core 72
Sliding chamber 718 is divided into the first comparison chamber 716 and second and compares chamber 717.Multiple oil ducts include the first oil duct 711, the second oil duct
712, third oil duct 713, the 4th oil duct 714, the 5th oil duct 715.Wherein, the first oil duct 711 is from the perforation of oil body outside is crossed to cunning
To form import in chamber 718, solenoid directional control valve 32 is connected to the first oil duct 711；Second oil duct 712 is connected to from the external of oil body is crossed
Into sliding chamber 718 to form oil outlet, which is connected to first chamber 211；First oil of the connection of third oil duct 713
Road 711 and first compares chamber 716；4th oil duct 714 connection the second oil duct 712 and second compares chamber 717.Spring 73 is compared to be located at
Second compares in chamber 717, and slip ratio changes the aperture of oil inlet or oil outlet to core 72 by mobile；Compare spring 73, warp
The hydraulic oil in chamber 716 is compared by the entrance of third oil duct 713 first, is entered in the second comparison chamber 717 via the 4th oil duct 714
Hydraulic oil makes slip ratio maintain a metastable position to core 72；Five-channel is for being connected to 711 He of the first oil duct
Second oil duct 712, and a shrinkage cavity is set to limit the flow of the hydraulic oil by Five-channel in Five-channel.
In the initial stage for implementing braking, as shown in Figure 3 to Figure 4, the hydraulic oil flowed out from solenoid directional control valve 32 is most of
Successively by the first oil duct 711, sliding chamber 718 and the second oil duct 712 enter first chamber 211 (due to necking 719 limit it is hydraulic
The flow of oil, and the aperture of the oil outlet of the oil inlet of the first oil duct 711 and the second oil duct 712 is larger, therefore, hydraulic oil only has
Minute quantity passes through the 5th oil duct 715), at this point, the flow of hydraulic oil will not be affected because mitigating mechanism 70 by power, into
And two brake bodies are made quickly to arrive at brake disc 10, and apply certain pressure to brake disc 10.
And when being applied to certain pressure to brake disc 10 and be enough to make to brake brake disc 10, accordingly, first chamber
The pressure rise of hydraulic oil in 211 simultaneously can be transferred to the second oil duct 712, and be transferred to the second comparison by the 4th oil duct 714
Chamber Room 717, so that the hydraulic oil in the second comparison chamber 717 increases and drives slip ratio to move up core 72 to close import and go out
Mouthful, and then separate the first oil duct 711 and the second oil duct 712.At this point, the hydraulic oil from solenoid directional control valve 32 only passes through the 5th
The necking 719 of oil duct 715 enters first chamber 211, necking 719 make the flow of the hydraulic oil entered in first chamber 211 compared with
It is few, just effectively inhibit the movement speed of piston 22 in this way, smaller main brake body 25 is generated because of mobile impact to brake disc 10
Deformation, and reduce simultaneously because of larger vibration caused by excessive friction.
Above embodiments are only exemplary embodiment of the present invention, are not used in the limitation present invention, protection scope of the present invention
It is defined by the claims.Those skilled in the art can within the spirit and scope of the present invention make respectively the present invention
Kind modification or equivalent replacement, this modification or equivalent replacement also should be regarded as being within the scope of the present invention.
Claims (7)
1. a kind of guide's braking system for move vehicle safety traffic characterized by comprising
Brake disc is set on the wheel hub of move vehicle；
Brake force application mechanism, guide's brake body of the main brake body with plate-like and plate-like, the main brake body and guide's system
Kinetoplast forms certain interval with the actuator dial；
Brake treadle mechanism comprising pedal and control unit, the control unit trample shape locating for pedal for detecting
State；
Hydraulic pressure supply mechanism, trample state according to locating for pedal detected by the control unit and to braking force machine
Structure provides hydraulic oil；Wherein:
When the pedal, which switches to, tramples state, the braking force application mechanism utilizes liquid provided by the hydraulic pressure supply mechanism
Pressure oil make guide's brake body movement speed be greater than the main brake body movement speed so that guide's brake body prior to institute
It states main brake body and the brake disc is implemented to activate.
2. guide's braking system according to claim 1 for move vehicle safety traffic, which is characterized in that the system
Dynamic force application mechanism further include:
Cylinder body；
Piston is set in the cylinder body, and the cylinder interior is divided into first chamber and second chamber；
Piston rod, first end are connected to the piston, and second end passes through the second chamber to stretch out the cylinder body, described
Main brake body is set to the second end of the piston rod, opens up slide opening from the piston to main brake body direction；
Slide core is set in the slide opening and can slide along the slide opening；
Guide's push rod, first end are connected to the slide core, and second end wears the slide opening and stretches to the main brake body, institute
State the second end that guide's brake body is set to guide's push rod；
Hydraulic damping mechanism is used to limit the flow of the hydraulic oil flowed out from the second chamber, to work as the hydraulic pressure supply
When mechanism provides hydraulic oil to the first chamber, provided hydraulic oil pushes against the slide core and its speed is made to be greater than pushing and pressing institute
State the speed of piston.
3. guide's braking system according to claim 2 for move vehicle safety traffic, which is characterized in that the work
The difference for filling in the area towards the first chamber and the area towards second chamber is less than the slide core towards the first chamber
Area.
4. guide's braking system according to claim 2 for move vehicle safety traffic, which is characterized in that the liquid
Pressure feed mechanism include:
Fuel tank is used to hold hydraulic oil；
Hydraulic pump is connected to fuel tank,
Solenoid directional control valve is connected to hydraulic pump, and the solenoid directional control valve, which has, makes hydraulic oil enter first chamber, and makes second
The first state of the indoor hydraulic oil reflux fuel tank of chamber；And hydraulic oil is made to enter second chamber, and make the liquid in first chamber
Second state of pressure oil reflux fuel tank；Wherein:
When pushes pedals, the control unit control solenoid directional control valve switches to first state, and when pedal rebound, it is described
Control unit controls the solenoid directional control valve and switches to the second state.
5. guide's braking system according to claim 2 for move vehicle safety traffic, which is characterized in that the elder generation
It leads and is also arranged with reset spring on push rod.
6. guide's braking system according to claim 4 for move vehicle safety traffic, which is characterized in that the liquid
Pressure damping mechanism is set on the pipeline between the second chamber and the solenoid directional control valve.
7. guide's braking system according to claim 1 for move vehicle safety traffic, which is characterized in that
Pipeline between the second chamber and the solenoid directional control valve is formed with the first pipeline and the second pipeline；
The hydraulic damping mechanism is throttle valve, and the throttle valve is set on first pipeline；
Check valve is provided on second pipeline, the outlet of the individual event valve is connected to the second chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811104849.8A CN109080616B (en) | 2018-09-21 | 2018-09-21 | Pilot brake system for safe driving of mobile vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811104849.8A CN109080616B (en) | 2018-09-21 | 2018-09-21 | Pilot brake system for safe driving of mobile vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109080616A true CN109080616A (en) | 2018-12-25 |
| CN109080616B CN109080616B (en) | 2020-02-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811104849.8A Expired - Fee Related CN109080616B (en) | 2018-09-21 | 2018-09-21 | Pilot brake system for safe driving of mobile vehicle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109882522A (en) * | 2019-01-17 | 2019-06-14 | 廊坊天龙意航汽车部件有限公司 | Power combining mechanism |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101451583A (en) * | 2007-12-06 | 2009-06-10 | 株式会社日立制作所 | Disk type electromagnetic brake |
| CN103144622A (en) * | 2013-03-23 | 2013-06-12 | 牛国亮 | Automobile hydraulic braking device |
| US20150112565A1 (en) * | 2011-12-27 | 2015-04-23 | Advics Co., Ltd. | Brake control apparatus for vehicle |
| CN105465245A (en) * | 2015-12-20 | 2016-04-06 | 重庆泽田汽车部件有限责任公司 | Quick response type floating caliper disc brake |
| CN205331278U (en) * | 2015-12-03 | 2016-06-22 | 北京汽车研究总院有限公司 | Parking braking system and car |
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2018
- 2018-09-21 CN CN201811104849.8A patent/CN109080616B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101451583A (en) * | 2007-12-06 | 2009-06-10 | 株式会社日立制作所 | Disk type electromagnetic brake |
| US20150112565A1 (en) * | 2011-12-27 | 2015-04-23 | Advics Co., Ltd. | Brake control apparatus for vehicle |
| CN103144622A (en) * | 2013-03-23 | 2013-06-12 | 牛国亮 | Automobile hydraulic braking device |
| CN205331278U (en) * | 2015-12-03 | 2016-06-22 | 北京汽车研究总院有限公司 | Parking braking system and car |
| CN105465245A (en) * | 2015-12-20 | 2016-04-06 | 重庆泽田汽车部件有限责任公司 | Quick response type floating caliper disc brake |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109882522A (en) * | 2019-01-17 | 2019-06-14 | 廊坊天龙意航汽车部件有限公司 | Power combining mechanism |
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| Publication number | Publication date |
|---|---|
| CN109080616B (en) | 2020-02-14 |
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