CN207496664U - A kind of electronic double loop braking valve unit of commercial car - Google Patents
A kind of electronic double loop braking valve unit of commercial car Download PDFInfo
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- CN207496664U CN207496664U CN201721243308.4U CN201721243308U CN207496664U CN 207496664 U CN207496664 U CN 207496664U CN 201721243308 U CN201721243308 U CN 201721243308U CN 207496664 U CN207496664 U CN 207496664U
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- electric pushrod
- braking valve
- mandril
- housing
- push rod
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Abstract
The utility model discloses a kind of electronic double loop braking valve unit of commercial car, wherein described device includes housing, braking valve assembly, electric pushrod, mandril, motor, end cap and installation lever, axis pin, ball screw assembly, bearing and the shaft coupling inside housings mounted on the upper part of the housing；The upper end of ball screw assembly, is fixed on by bearing on the end cap of housing, and lower end is connected by shaft coupling with the motor；The middle part of lever is mounted on by axis pin on housing, and can be rotated around axis pin, and one end of lever is connect with electric pushrod, and the other end is connect with ball screw assembly,；Braking valve assembly is located at the lower part of housing and is connect with shell flange, the lower part outer wall of mandril extends radially outward to form the shaft shoulder, more than the mandril shaft shoulder inside for being partially installed on electric pushrod and with electric pushrod clearance fit, in the groove inside partial insertion braking valve assembly below the mandril shaft shoulder.The apparatus structure is simple, manufacture is at low cost, suitable for commercial car from primary brake system.
Description
Technical field
The utility model belongs to automobile brake technical field, and in particular to a kind of electronic double loop brake valve dress of commercial car
It puts.
Background technology
Autonomous emergency braking (AEB) system is a kind of automobile active safety technology, mainly by range finder module, data analysis mould
Block and actuator module are formed.AEB systems using radar or visual sensor measure with front truck or other barriers away from
From, then using data analysis module by the distance measured and alarm distance, safe distance is compared.Less than alarm distance then
Alarm sounds；If be further less than safe distance, even if driver does not have enough time stepping on brake pedal, AEB systems
It can start from main brake, so as to avoid the generation of rear-end collision (also including the collision with other barriers) or mitigate its injury.
At present, the domestic Innovation Input for AEB systems with America and Europe compared to and it is little, the AEB systems of domestic vehicle are not yet
It is universal.The high-end vehicle of only part brand is equipped, but quantity is few.Independent brand enterprise and research institutions are to AEB
Systematic research is then at the early-stage, still rests on the primary stage of basic theory and research and development, while also zero external by some
Restriction of the part enterprise in terms of product patent.Therefore, there are larger gaps with American-European technical merit.
In terms of passenger car, now domestic there are also the related patents from main brake, such as Publication No.
The Chinese invention patent " pedal simulator for being used for active brake system " of " CN104554200A ", discloses a kind of for actively
The pedal simulator of braking system, the pedal simulator are mounted at master cylinder, to receive the pedal effort corresponding to driver
Hydraulic pressure and to driver provide pedal sense, the device mainly by brake fluid driving, suitable for small passenger car.
In commercial car field, it can implement mainly have electric brake system (EBS) from the relevant technologies and device of main brake.
Often there are friction facing abrasion, conventional braking systems in braking system to react the problems such as slow, in order to improve the system of lorry
Dynamic performance, the EBS based on ANTI LOCK ABS and Anti-slip regulation ASR have also been developed.German Wei Baike companies and gram
Knoll Inc. is that most important EBS suppliers, EBS integrate the basic function of control for brake, ABS and ASR to one in the world
In a electronic system, advantage is in response to the time and braking distance is shorter, so as to improve the safety of road traffic.EBS can
All auxiliary braking system of vehicle are automatically controlled, and AEB emergency braking systems can be increased on the basis of EBS, are realized
From main brake.Since commercial car EBS or AEB systems in the prior art are using two proportion relay valves, each ratio servo
Valve all contains the components such as high-speed electromagnetic valve or proportion electro-magnet, pressure sensor, cause it is complicated, manufacture it is of high cost, until
The present is all popularized far away in the area of outside Europe.Therefore, one kind can be implemented from main brake expecting most of commercial car market and
Cost is again low from main breaking zone device.
Invention content
In order to solve the above-mentioned problems of the prior art, the purpose of this utility model is to propose that a kind of commercial car is electronic double
Circuit braking valve unit, to solve the problems, such as complicated, manufacture cost height of the existing autonomous brake system structure of commercial car etc..
To achieve these goals, the utility model uses following technical scheme：
A kind of electronic double loop braking valve unit of commercial car, including housing, braking valve assembly, electric pushrod, mandril, electricity
Machine, the end cap mounted on the upper part of the housing and the lever mounted on the enclosure interior, axis pin, ball screw assembly, bearing
And shaft coupling；
The upper end of the ball screw assembly, is fixed on by the bearing on the end cap of the housing, and lower end passes through described
Axis device is connected with the motor；
The middle part of the lever is installed on the housing by the axis pin, and can be rotated around axis pin, the lever
One end is connect with the electric pushrod, and the other end is connect with the ball screw assembly,；
The braking valve assembly is located at the lower part of the housing and is connect with shell flange, the lower part outer wall edge of the mandril
It extends radially outwardly to form the shaft shoulder, the inside for being partially installed on the electric pushrod more than mandril shaft shoulder and between electric pushrod
Gap coordinates, in the groove described in the partial insertion below the mandril shaft shoulder inside braking valve assembly.
Preferably, push rod, push rod connection flange and spring are further included；The push rod connection flange is installed on the housing
On end cap, the top of the electric pushrod is mounted in push rod connection flange；The lower end of the push rod is installed on the push rod connection
In acting flange centre bore, push rod is solid cylinder, there is a groove at bottom center, for installing the upper end of the mandril；
The spring pocket is mounted in the top of the electric pushrod, and the upper end top is mounted in the lower face of the push rod, and lower end top is mounted in institute
It states on radially inwardly extending the formed boss of lower inner wall of push rod connection flange.
Preferably, the ball screw assembly, includes ball-screw and screw, and one end of the lever is connect with the screw.
Preferably, the both ends of the lever respectively form a slot hole, and two guide blots are each extended into after a slot hole respectively
It is connect with electric pushrod and screw.
Preferably, the electric pushrod and push rod connection flange and the housing connect with electric pushrod by copper sheathing respectively
It connects, for being oriented to and lubricating to electric pushrod.
It is further preferred that in the case where having been triggered from main brake, the motor work, the ball-screw turns
Dynamic, the screw moves upwards and the lever is driven to be rotated counterclockwise around axis pin, so as to which the electric pushrod be driven to push institute
It states mandril to move downward, there are an axial gaps between the upper end of mandril and the push rod at this time.
It is further preferred that it is described braking valve assembly include two air inlets and two gas outlets, inside have return spring
Device.
Due to the utilization of above-mentioned technical proposal, the utility model has following advantages：
1. the electronic double loop braking valve unit of the utility model can realize double-circuit braking system from main brake control
System, and not only can independently implement with manual braking, but also can implement simultaneously if necessary from main brake；
2. according to the needs of brake safe, the motor of the electronic double loop braking valve unit of the utility model can be in manpower
Apply additional brake force during braking, implement braking auxiliary, to shorten braking distance；
3. the electronic Double-loop braking device of the utility model only needs an electrodynamic braking valve, you can implement from main brake,
Electrodynamic braking valve is used it for AEB and is adaptively patrolled using servo motor and ball-screw simple in structure and that manufacture is at low cost
Boat (ACC) is when driving assistance systems are from main brake with larger cost advantage.
Description of the drawings
Fig. 1 is the main structure diagram of the electronic double loop braking valve unit of the utility model commercial car；
Fig. 2 is the backsight structural representation of the electronic double loop braking valve unit of the utility model commercial car.
In figure：
1- push rod 2- push rod connection flange 3- spring 4- end caps
5- housing 6- electric pushrod 7- mandril 8- copper sheathings
9- flanges 10- brakes valve assembly 11- bearing cap 12- bearings
13- ball-screw 14- screw 15- shaft coupling 16- motors
17- guide blot 18- lever 19- axis pins
A1- air inlets I connect gas receiver A2- air inlets II, connect gas receiver
B1- gas outlets I connect brake chamber B2- gas outlets II, connect brake chamber
Specific embodiment
A kind of electronic braking valve unit in commercial car double loop of the utility model is made below in conjunction with the accompanying drawings further detailed
Explanation.
As depicted in figs. 1 and 2, including push rod 1, push rod joins the electronic braking valve unit in commercial car double loop of the utility model
Acting flange 2, spring 3, end cap 4, housing 5, electric pushrod 6, mandril 7, copper sheathing 8, flange 9, braking valve assembly 10, bearing cap 11,
Bearing 12, ball-screw 13, screw 14, shaft coupling 15, motor 16, guide blot 17, lever 18 and axis pin 19.
End cap 4 is mounted on the top of housing 5, and lever 18, ball-screw 13, screw 14, shaft coupling 15 and axis pin 19 are installed
In the inside of housing 5；Motor 16 and ball-screw 13 are connected by shaft coupling 15, and leading screw 13 is fixed on housing by bearing 12
On, lever 18 is fixed on by axis pin 19 on housing, and is rotated around axis pin 19, and is passed through guide blot 17 and connected electric pushrod 6
With screw 14.
Mandril 7 is installed together across 6 clearance fit of electric pushrod, and mandril 7 has a shaft shoulder to support electric pushrod 6, copper
Set 8 mainly plays a part of to lubricate and be oriented to, and braking valve assembly 10 is fixed on the lower part of housing 5 by flange 9；Mandril 7 is direct
It acts on braking valve assembly 10, is manual braking's state when only mandril 7 moves downward.
Push rod 1 is directly connect with pedal, spring 3 be mounted on push rod connection flange 2 inside, be used to support push rod 1, make its
From main brake when be held in place putting constant, and corresponding pedal sense can be simulated.
The utility model both can be used for conventional manual braking, can be used for from main brake.Below for both shapes
Formula specifically introduces its implementation process.
When the device needs to implement from main brake, motor 16 rotates, and 13 turns of ball-screw is driven by shaft coupling 15
Dynamic, then screw 14 moves upwards, and the guide blot 17 on screw 14 drives lever 18 to rotate, so as to drive electric pushrod 6 to
Lower movement；Electric pushrod 6 can force mandril 7 to move downward, and the dual-chamber brake braked in valve assembly 10 is opened, i.e. air inlet I
It is respectively turned on gas outlet I, air inlet II and gas outlet II, so as to send the compressed air in gas receiver to the control of relay valve
Mouth is fed directly to brake chamber.Motor 16 is stopped when releasing braking, and the return spring in braking valve assembly 10 is (in figure not
Show) 7 counter motion of mandril can be made, and drive the also counter motion of electric pushrod 6, the transmission parts of motor 16 are stopped.
From main brake when, push rod 1 will not move down under the supporting role of 3 elastic force of spring, that is, not interfere with the position of pedal.Autonomous
In the case that braking is triggered, an axial gap is reserved between mandril 7 and push rod 1；If driver steps on braking and steps at this time
Plate, push rod 1 are moved down compressed spring 3, and so as to which driver will not feel to make a misstep brake pedal, i.e. spring 3 can obtain driver
Corresponding pedal sense.
When driver applies manual braking, motor 16 does not work under normal circumstances, and corresponding pedal force is amplified through pedal
After act on push rod 1, push rod 1 moves down and mandril 7 is driven to move downward, and is opened so as to brake the dual-chamber brake in valve assembly 10
It opens, implements manual braking.In manual braking, the position of electric pushrod 6 is not moved down by mandril 7 to be influenced, so will not
Motor and its transmission device is caused to form manual braking due to position changes to hinder.But in the situation of manual braking
Under, if detecting, driver is carrying out panic braking (if the braking that brake pedal is hurriedly stepped on and manual braking generates
Power is smaller, then is considered as panic braking), then motor 16 also assists in work, i.e., implements braking by applying additional brake force
Auxiliary.
Above-described embodiment is only the technical concepts and features for illustrating the utility model, and its object is to allow be familiar with technique
Personage can understand the content of the utility model and implement according to this, can not the scope of protection of the utility model be limited with this.
All equivalent change or modifications made according to the utility model, should be covered within the scope of the utility model.
Claims (7)
1. a kind of electronic double loop braking valve unit of commercial car, it is characterised in that：Described device include housing, braking valve assembly,
Electric pushrod, mandril, motor, the end cap mounted on the upper part of the housing and the lever mounted on the enclosure interior, axis pin,
Ball screw assembly, bearing and shaft coupling；
The upper end of the ball screw assembly, is fixed on by the bearing on the end cap of the housing, and lower end passes through the shaft coupling
It is connected with the motor；
The middle part of the lever is installed on the housing by the axis pin, and can be rotated around axis pin, one end of the lever
It is connect with the electric pushrod, the other end is connect with the ball screw assembly,；
The braking valve assembly is located at the lower part of the housing and is connect with shell flange, and the lower part outer wall of the mandril is radially
Extend outward to form the shaft shoulder, the inside for being partially installed on the electric pushrod more than mandril shaft shoulder is simultaneously matched with electric pushrod gap
It closes, in the groove described in the partial insertion below the mandril shaft shoulder inside braking valve assembly.
2. the electronic double loop braking valve unit of commercial car according to claim 1, it is characterised in that：It further includes push rod, push away
Bar connection flange and spring；
The push rod connection flange is installed on the end cap of the housing, and the top of the electric pushrod is mounted on push rod attached method
In orchid；
The lower end of the push rod is installed in the centre bore of the push rod connection flange, and push rod is solid cylinder, in bottom end
There is a groove at the heart, for installing the upper end of the mandril；
The spring pocket is mounted in the top of the electric pushrod, and the upper end top is mounted in the lower face of the push rod, lower end top dress
On radially inwardly extending the formed boss of lower inner wall of the push rod connection flange.
3. the electronic double loop braking valve unit of commercial car according to claim 1 or 2, it is characterised in that：The ball wire
Thick stick pair includes ball-screw and screw, and one end of the lever is connect with the screw.
4. the electronic double loop braking valve unit of commercial car according to claim 3, it is characterised in that：The both ends of the lever
A slot hole is respectively formed, two guide blots are connect after each extending into a slot hole with electric pushrod and screw respectively.
5. the electronic double loop braking valve unit of commercial car according to claim 4, it is characterised in that：The electric pushrod and
Push rod connection flange and the housing are connect with electric pushrod by copper sheathing respectively, for being oriented to and lubricating to electric pushrod.
6. the electronic double loop braking valve unit of commercial car according to claim 5, it is characterised in that：From main brake
In the case of triggering, the motor work, the ball screw turns, the screw moves upwards and drives the lever around pin
Axis rotates counterclockwise, and so as to drive the electric pushrod that the mandril is pushed to move downward, the upper end of mandril is pushed away with described at this time
There are an axial gaps between bar.
7. the electronic double loop braking valve unit of commercial car according to claim 6, it is characterised in that：The braking valve assembly
Including two air inlets and two gas outlets, inside have return spring device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721243308.4U CN207496664U (en) | 2017-09-26 | 2017-09-26 | A kind of electronic double loop braking valve unit of commercial car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721243308.4U CN207496664U (en) | 2017-09-26 | 2017-09-26 | A kind of electronic double loop braking valve unit of commercial car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207496664U true CN207496664U (en) | 2018-06-15 |
Family
ID=62499443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721243308.4U Active CN207496664U (en) | 2017-09-26 | 2017-09-26 | A kind of electronic double loop braking valve unit of commercial car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207496664U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110065484A (en) * | 2019-04-19 | 2019-07-30 | 株洲华越轨道科技有限公司 | A kind of electricity powered main brake valve structure |
-
2017
- 2017-09-26 CN CN201721243308.4U patent/CN207496664U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110065484A (en) * | 2019-04-19 | 2019-07-30 | 株洲华越轨道科技有限公司 | A kind of electricity powered main brake valve structure |
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