CN108995640A - A kind of vehicle, braking force distribution system and its sense carry deformation enlarger - Google Patents
A kind of vehicle, braking force distribution system and its sense carry deformation enlarger Download PDFInfo
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- CN108995640A CN108995640A CN201811045555.2A CN201811045555A CN108995640A CN 108995640 A CN108995640 A CN 108995640A CN 201811045555 A CN201811045555 A CN 201811045555A CN 108995640 A CN108995640 A CN 108995640A
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- spiral arm
- sense
- enlarger
- deformation
- vehicle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T15/00—Construction arrangement, or operation of valves incorporated in power brake systems and not covered by groups B60T11/00 or B60T13/00
- B60T15/02—Application and release valves
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Hydraulic Control Valves For Brake Systems (AREA)
Abstract
The sense that the present invention discloses a kind of braking force distribution system carries deformation enlarger, including being connected on vehicle body bottom frame and the mounting bracket extended, the pull rod, the first spiral arm being rotatably connected in mounting bracket, the second spiral arm for being rotatably connected in mounting bracket and rotating synchronously with the first spiral arm that are connected on drive axle and extend upward downward；The end of first spiral arm is connected on pull rod, and to rotate under its pulling function, the end of the second spiral arm is connected to sense and carries on the bottom end of spring, and the brachium of the second spiral arm is greater than the brachium of the first spiral arm.So, after the end of second spiral arm with the first spiral arm by rotating synchronously, it is equivalent to and the end vertical deviation amount of the first spiral arm has been subjected to a certain proportion of amplification, so that the deformation quantity for making sense carry spring is bigger, improve the brake pressure distribution precision and braking pressure control effect of inductive proportional valve.Invention additionally discloses a kind of braking force distribution system and a kind of vehicle, its advantages are as described above.
Description
Technical field
The present invention relates to Vehicle Engineering technical field, in particular to the sense of a kind of braking force distribution system carries deformation enlarger
Structure.The invention further relates to a kind of braking force distribution system including above-mentioned sense load deformation enlarger and a kind of vehicles.
Background technique
With the development of Chinese mechanical industry, more and more mechanical equipments have been used widely.
In auto industry field, different types of vehicle has put into production use.There are many type of vehicle, can be divided mainly into
Passenger car, commercial vehicle and engineering truck.Wherein engineering truck includes towing vehicle (trailer or trailer etc.), pump truck, crane, mixes again
All kinds of Construction traffics such as solidifying soil transport vehicle.By taking towing vehicle as an example, towing vehicle is to be drawn between headstock and railway carriage by tool
Large-sized truck or semitrailer, be frequently used in workshop or between workshop big shipments transport, as auto manufacturing warehouse to
Transport, the luggage traffic on airport of assembly line etc..
The operating condition of towing vehicle is more special, since it is based on draw, it is desirable that and the adhesive force of driving wheel is big, thus before
Rear axle load, wheel gauge difference are larger, and front wheel brake is smaller, and brake force allowable is low, and rear wheel brake is larger, system allowable
Power is high.Also, for towing vehicle in unloaded and fully loaded progress towage, the variation of front and back axle load is very big, adds vehicle
The thrusting action of body inertia and traction cargo, for towing vehicle in braking, the variation of front and back axle load is more significant.
Currently, be generally provided with four-wheel braking pipe-line system on towing vehicle, be broadly divided into single-line braking system system and
Dual-line braking system.Wherein, the inside of single-line braking system system interconnects, and generally master cylinder is exported by threeway or four-way
Brake fluid distributes to four brakes, and the pressure of each brake is identical.Single-line braking system is united because not backing up, when wherein one
After a point leakage, whole system pressure can all be affected, until pressure is zero, lead to brake entirely ineffective, security level
Low, application is fewer and fewer.And dual-line braking system is made of two pipe-line systems, two systems are independent from each other, when it
In a thrashing when will not influence another system, security level is high, and application is more and more wider.
Dual-line braking system is divided to two kinds of dual-line braking system of isobaric dual-line braking system and partial pressure again, wherein etc.
The characteristics of pressing dual-line braking system is: each pipeline is assigned to two brakes, since forward and backward brake pressure is identical, braking
Pressure maximum allows pressure no more than brake, i.e., provides by the small value of brake pressure allowable, meanwhile, to prevent wheel from beating
Sliding, no more than the adhesive force of wheel, the two gets the small value brake force, and brake pressure is low, cannot make full use of the adhesive force of wheel,
Cause vehicle brake force small, braking distance is long, thus causes isobaric dual circuit system using fewer and fewer.And divide dual circuit system
Dynamic system meets brake to different allowable pressure requirements, can also utilize vehicle as far as possible since system can provide different pressure
The adhesive force of wheel obtains preferable braking effect, therefore divides dual circuit system using more and more.
To solve the problems, such as that braking force distribution existing for partial pressure dual circuit system mismatches vehicle front-rear axle load, existing skill
Inductive proportional valve can be generally added in art on vehicle, by inductive proportional valve to the induction effect of front-rear axle load, and is utilized
The spool that vehicle-mounted leaf spring and sense carry the deformation quantity control inductive proportional valve of spring is mobile, to reasonably distribute the real-time of front-rear axle
Brake pressure guarantees that wheel is non-slip, vehicle not whipping.However, the rigidity of vehicle-mounted leaf spring is generally large, and muti-piece leaf spring is mutual
It mutually stacks integrally, even if vehicle is when occurring severe load variation, the amount of elastic deformation of vehicle-mounted leaf spring is also very small, and then leads
The deformation quantity for causing sense to carry spring is equally very small, and the stress variation of spool control-rod is slight, so will be unable to satisfaction and carries ratio
The example valve demand for control mobile to spool, causes that the brake pressure distribution ratio of inductive proportional valve is inaccurate, braking pressure control
Insensitive, the inapparent problem of control effect.
Therefore, how suitably to increase sense carry spring deformation quantity, improve inductive proportional valve brake pressure distribution precision and
Braking pressure control effect is those skilled in the art's technical problem urgently to be resolved.
Summary of the invention
The object of the present invention is to provide a kind of senses of braking force distribution system to carry deformation enlarger, can suitably increase sense
The deformation quantity for carrying spring, improves the brake pressure distribution precision and braking pressure control effect of inductive proportional valve.Of the invention is another
One purpose is to provide a kind of braking force distribution system and a kind of vehicle.
In order to solve the above technical problems, the sense that the present invention provides a kind of braking force distribution system carries deformation enlarger, packet
Include the mounting bracket for being connected on vehicle body bottom frame and the extending downward, pull rod for being connected on drive axle and extending upward, rotatable
The first spiral arm that ground is connected in the mounting bracket, be rotatably connected in the mounting bracket and with first spiral arm
The second spiral arm rotated synchronously；The end of first spiral arm is connected on the pull rod, to be rotated under its pulling function, institute
The end for stating the second spiral arm is connected to sense and carries on the bottom end of spring, and the brachium of second spiral arm is greater than first spiral arm
Brachium.
Preferably, the head end of first spiral arm is plugged in the mounting hole of the mounting bracket by jackshaft.
Preferably, the head end of second spiral arm is connected on the jackshaft.
Preferably, the pull rod vertically extends towards the inductive proportional valve.
Preferably, it is provided with bolt on the end of first spiral arm, and the top of the pull rod is threaded through the bolt
On through-hole in.
Preferably, the top of the pull rod is provided with the adjusting nut for carrying the pretightning force of spring for adjusting the sense.
The present invention also provides a kind of braking force distribution system, including be set on vehicle body bottom frame inductive proportional valve, setting
In on drive axle leaf spring, be connected to the inductive proportional valve spool control-rod on sense carry spring, and with the sense load
The connected sense of spring carries deformation enlarger, wherein it is specially sense described in any of the above embodiments that the sense, which carries deformation enlarger,
Carry deformation enlarger.
The present invention also provides a kind of vehicles, including car body and the braking force distribution system being set on the car body, wherein
The braking force distribution system is specially braking force distribution system described in the next item up.
Preferably, the vehicle is specially industrial vehicle.
The sense of braking force distribution system provided by the present invention carries deformation enlarger, mainly include mounting bracket, pull rod,
First spiral arm and the second spiral arm.Wherein, mounting bracket is connected on vehicle body bottom frame, and is extended downward, i.e., prolongs towards drive axle
It stretches.Pull rod setting extends on drive axle, and upward, i.e., extends towards bracket.The head end of first spiral arm is connected to installation branch
On frame, and it can be rotated in mounting bracket, and the end of the first spiral arm is connected on pull rod, it can be under the pulling function of pull rod
It is rotated clockwise or counterclockwise.The head end of second spiral arm is again connected in mounting bracket, and can be in mounting bracket
Rotation, it is important that the second spiral arm with the rotation of the first spiral arm be it is synchronous, in other words, the first spiral arm band during rotation
Dynamic second spiral arm synchronizes rotation, and the angular speed for being equivalent to the first spiral arm is equal with the angular speed of the second spiral arm.Meanwhile second
The end of spiral arm is connected to sense and carries on the bottom end of spring, and when the rotation of the second spiral arm, the bottom end of spring can be carried with dynamic to it
It is stretched, to increased or decrease its amount of tension.Also, the brachium of the second spiral arm is greater than the brachium of the first spiral arm, therefore, the
The end vertical deviation amount of two spiral arms is greater than the end vertical deviation amount of the first spiral arm.Wherein, the end of the first spiral arm is by pull rod
It is driven, therefore vertical between vehicle body bottom frame and drive axle when the end vertical deviation amount of the first spiral arm is load change
Spacing variation.And the end vertical deviation amount of the second spiral arm is equivalent to after rotating synchronously with the first spiral arm by the first spiral arm
End vertical deviation amount carried out a certain proportion of amplification, for sense carry spring for, the variation of deformation quantity is amplified,
It would be even more beneficial to improve the brake pressure distribution precision and braking pressure control effect of inductive proportional valve.In conclusion of the invention
The sense of provided braking force distribution system carries deformation enlarger, can suitably increase the deformation quantity that sense carries spring, improves sense
Carry the brake pressure distribution precision and braking pressure control effect of proportioning valve.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is a kind of overall structure diagram of specific embodiment provided by the present invention.
Wherein, in Fig. 1:
Vehicle body bottom frame -1, drive axle -2, inductive proportional valve -3, spool control-rod -301, leaf spring -4, sense carry bullet
Spring -5, mounting bracket -6, pull rod -7, the first spiral arm -8, the second spiral arm -9, jackshaft -10, bolt -11 adjust spiral shell
Mother -12.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to FIG. 1, Fig. 1 is a kind of overall structure diagram of specific embodiment provided by the present invention.
In a kind of specific embodiment provided by the present invention, the sense of braking force distribution system carries deformation enlarger master
It to include mounting bracket 6, pull rod 7, the first spiral arm 8 and the second spiral arm 9.
Wherein, mounting bracket 6 is connected on vehicle body bottom frame 1, and is extended downward, i.e., extends towards drive axle 2.Pull rod 7
Setting extends on drive axle 2, and upward, i.e., extends towards bracket.
The head end of first spiral arm 8 is connected in mounting bracket 6, and can be rotated in mounting bracket 6, and the first spiral arm 8
End be connected on pull rod 7, can be rotated clockwise or counterclockwise under the pulling function of pull rod 7.
The head end of second spiral arm 9 is again connected in mounting bracket 6, and can be rotated in mounting bracket 6, important
Be, the second spiral arm 9 with the rotation of the first spiral arm 8 be it is synchronous, in other words, the first spiral arm 8 drives the second rotation during rotation
Arm 9 synchronizes rotation, and the angular speed for being equivalent to the first spiral arm 8 is equal with the angular speed of the second spiral arm 9.
Meanwhile second spiral arm 9 end be connected to sense carry spring 5 bottom end on, when the second spiral arm 9 rotation when, can band
The bottom end that innervation carries spring 5 stretches it, to increased or decrease its amount of tension.Also, the brachium of the second spiral arm 9 is greater than
The brachium of first spiral arm 8, therefore, the end vertical deviation amount of the second spiral arm 9 are greater than the end vertical deviation amount of the first spiral arm 8.
Wherein, the end of the first spiral arm 8 is driven by pull rod 7, therefore the end vertical deviation amount of the first spiral arm 8 is
Vertical spacing variation when load change between vehicle body bottom frame 1 and drive axle 2.And the end vertical deviation amount of the second spiral arm 9, lead to
It crosses after being rotated synchronously with the first spiral arm 8, is equivalent to and the end vertical deviation amount of the first spiral arm 8 has been subjected to a certain proportion of put
Greatly, for sense carries spring 5, the variation of deformation quantity is amplified, and would be even more beneficial to the braking pressure for improving inductive proportional valve 3
Power assignment accuracy and braking pressure control effect.
In conclusion the sense of braking force distribution system provided by the present embodiment carries deformation enlarger, can suitably increase
Loading carries the deformation quantity of spring, improves the brake pressure distribution precision and braking pressure control effect of inductive proportional valve.
As shown, in its natural state, end distance of the spool control-rod 301 away from the first spiral arm 8 is H1, spool control-rod
The 301 end distances away from the second spiral arm 9 are H2, and when generating load change, the first spiral arm 8 is under the pulling function of pull rod 7
It rotates upwardly and downwardly, while generating the displacement on vertical, is i.e. diagram Δ H1.Then, turn since the second spiral arm 9 is synchronous with the first spiral arm 8
It is dynamic, therefore when the end of the first spiral arm 8 generates the vertical deviation of Δ H1, the end of the second spiral arm 9 will generate the vertical of Δ H2
Displacement.Obviously, Δ H2=L2/L1 × Δ H1, since L2 is greater than L1, Δ H2 is the several times of Δ H1, that is, by first
The displacement that 8 end of spiral arm generates amplifies several times.
About in a kind of preferred embodiment of the first spiral arm 8 and the second spiral arm 9, the head end of first spiral arm 8 can lead to
It crosses jackshaft 10 and mounting bracket 6 is rotatablely connected.Specifically, the jackshaft 10 can be mounted on by welding or remaining connector
It fills on bracket 6, for example the both ends of jackshaft 10 can be respectively welded between two blocks of face side plates being arranged in mounting bracket 6.And
The head end of first spiral arm 8 and the second spiral arm 9 can be rotated around jackshaft 10, for example, can be on the periphery of jackshaft 10
It is arranged rotatable casing, the head end of the first spiral arm 8 and the second spiral arm 9 is then passed through into welding or remaining connector is connected to
On the casing, that is, the first spiral arm 8 and the second spiral arm 9 may make to carry out coaxial synchronous rotation with jackshaft 10 for shaft.
In a kind of preferred embodiment about pull rod 7, one end of the pull rod 7 can vertically erect the table in drive axle 2
On face, while the length direction of the pull rod 7 can be vertical, the i.e. vertically upward toward extension of inductive proportional valve 3.In general, the drawing
Bar 7 can face inductive proportional valve 3 and be arranged on drive axle 2.
The first spiral arm 8 and the second spiral arm 9 is smoothly driven to carry out coaxial synchronous rotation, the present embodiment for convenience of by pull rod 7
In, the mountable root cutting pin 11 in the end surface of the first spiral arm 8, the bolt 11 is generally in horizontally disposed (vertical as shown
In paper direction), while through-hole is vertically offered in the outer end position of the bolt 11, and the top of pull rod 7 passes through this
Through-hole extends to 11 top of bolt.Also, it is connected through a screw thread on the top of pull rod 7 and is arranged with adjusting nut 12, by this
The locking effect of adjusting nut 12 can prevent pull rod 7 from deviating from from the through-hole of bolt 11.So set, the top of pull rod 7 is single
To being connected on the first spiral arm 8.
Specifically, when axle load moves back, 4 compressed sinking of leaf spring when, pull rod 7, which synchronizes, to be moved down, and right by adjusting nut 12
The downward abutting pressure of 11 upper end of bolt pulls the first spiral arm 8 counterclockwise rotated as shown, and then drive the
Two spiral arms 9 rotate synchronously, and sense is carried spring 5 and is stretched.Conversely, pull rod 7 is same when axle load Forward, leaf spring 4 are relaxed rising
Step rises, but due to unidirectionally connecting with the first spiral arm 8, the first spiral arm 8 can not directly be driven to carry out as shown side clockwise at this time
To being rotated；However sense at this time carries spring 5 and is relaxed in the rising of pull rod 7, sense carries 5 bottom of spring retraction, drives second to revolve
Arm 9 carries out as shown rotationally clockwise, and then the first spiral arm 8 is driven to rotate synchronously, until the bolt 11 on the first spiral arm 8
Until disappearing with the gap of the adjusting nut 12 on 7 top of pull rod, pull rod 7 can reduce to remaining part in enlarger with this
Impact.
In addition, by turning operation, the maximum of also manually adjustable pull rod 7 on 7 top of pull rod to adjusting nut 12
Upper and lower displacement amount, and then adjust pretightning force and deformation quantity that sense carries spring 5.
The present embodiment also provides a kind of braking force distribution system, and main includes that the sense being arranged on vehicle body bottom frame 1 carries ratio
Valve 3, the leaf spring 4 being arranged on drive axle 2, the sense being connected on the spool control-rod 301 of inductive proportional valve 3 carry spring 5, and
Carry the sense that is connected of spring 5 with sense and carry deformation enlarger, wherein the particular content of sense load deformation enlarger to it is above-mentioned related
Content is identical, and details are not described herein again.
The present embodiment also provides a kind of vehicle, the main braking force distribution system including car body and setting on the car body,
In, the particular content of the braking force distribution system is identical as above-mentioned related content, and details are not described herein again.
It should be noted that vehicle described in the present embodiment, refers specifically to industrial vehicle, such as towing vehicle etc., when
So if the engineering truck of remaining type, can similarly use.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (9)
1. a kind of sense of braking force distribution system carries deformation enlarger, which is characterized in that including being connected on vehicle body bottom frame (1)
And extend downward mounting bracket (6), be connected on drive axle (2) and extend upward pull rod (7), be rotatably connected to institute
State the first spiral arm (8) on mounting bracket (6), be rotatably connected on the mounting bracket (6) and with first spiral arm
(8) the second spiral arm (9) rotated synchronously；The end of first spiral arm (8) is connected on the pull rod (7), in its pulling
The lower rotation of effect, the end of second spiral arm (9) are connected to sense and carry on the bottom end of spring (5), and second spiral arm (9)
Brachium is greater than the brachium of first spiral arm (8).
2. sense according to claim 1 carries deformation enlarger, which is characterized in that the head end of first spiral arm (8) is logical
Jackshaft (10) is crossed to be plugged in the mounting hole of the mounting bracket (6).
3. sense according to claim 2 carries deformation enlarger, which is characterized in that the head end of second spiral arm (9) connects
It connects on the jackshaft (10).
4. sense according to claim 1-3 carries deformation enlarger, which is characterized in that the pull rod (7) is along vertical
Extend to towards the inductive proportional valve (3).
5. sense according to claim 4 carries deformation enlarger, which is characterized in that on the end of first spiral arm (8)
It is provided with bolt (11), and the top of the pull rod (7) is threaded through in the through-hole on the bolt (11).
6. sense according to claim 5 carries deformation enlarger, which is characterized in that the top of the pull rod (7) is provided with
The adjusting nut (12) for carrying the pretightning force of spring (5) for adjusting the sense.
7. a kind of braking force distribution system, including be set on vehicle body bottom frame (1) inductive proportional valve (3), be set to drive axle
(2) leaf spring (4) on, the sense being connected on the spool control-rod (301) of the inductive proportional valve (3) carry spring (5), Yi Jiyu
The sense carries spring (5) connected sense and carries deformation enlarger, which is characterized in that it is specially to weigh that the sense, which carries deformation enlarger,
Benefit requires the described in any item senses of 1-6 to carry deformation enlarger.
8. a kind of vehicle, including car body and the braking force distribution system being set on the car body, which is characterized in that the braking
Power distribution system is specially braking force distribution system as claimed in claim 7.
9. vehicle according to claim 8, which is characterized in that the vehicle is specially industrial vehicle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811045555.2A CN108995640B (en) | 2018-09-07 | 2018-09-07 | Vehicle, braking force distribution system and load sensing deformation amplifying mechanism thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811045555.2A CN108995640B (en) | 2018-09-07 | 2018-09-07 | Vehicle, braking force distribution system and load sensing deformation amplifying mechanism thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108995640A true CN108995640A (en) | 2018-12-14 |
| CN108995640B CN108995640B (en) | 2023-07-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811045555.2A Active CN108995640B (en) | 2018-09-07 | 2018-09-07 | Vehicle, braking force distribution system and load sensing deformation amplifying mechanism thereof |
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| Country | Link |
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| CN (1) | CN108995640B (en) |
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| DE3119827A1 (en) * | 1981-05-19 | 1982-12-16 | Robert Bosch Gmbh, 7000 Stuttgart | BRAKE FORCE REGULATOR |
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| DE3119827A1 (en) * | 1981-05-19 | 1982-12-16 | Robert Bosch Gmbh, 7000 Stuttgart | BRAKE FORCE REGULATOR |
| DE3541833A1 (en) * | 1985-11-27 | 1987-06-04 | Teves Gmbh Alfred | Brake system with traction control |
| JPH08113126A (en) * | 1994-10-17 | 1996-05-07 | Akebono Brake Ind Co Ltd | Load sensing proportioning valve |
| JPH08216849A (en) * | 1995-02-17 | 1996-08-27 | Mitsubishi Motors Corp | Load sensing valve device |
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| Publication number | Publication date |
|---|---|
| CN108995640B (en) | 2023-07-07 |
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