CN206265016U - A kind of fail safe decoupling type arrestment mechanism - Google Patents
A kind of fail safe decoupling type arrestment mechanism Download PDFInfo
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- CN206265016U CN206265016U CN201621312728.9U CN201621312728U CN206265016U CN 206265016 U CN206265016 U CN 206265016U CN 201621312728 U CN201621312728 U CN 201621312728U CN 206265016 U CN206265016 U CN 206265016U
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- decoupling
- brake
- master cylinder
- tooth bar
- sleeve
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Abstract
The utility model discloses a kind of fail safe decoupling type arrestment mechanism；Including hydraulic tank, master cylinder, hydraulic regulating device, wheel cylinder, brake pedal, brake pushrod, transmission mechanism and external power source；External power source is used to provide rotating torque to transmission mechanism；Transmission mechanism includes turbine with the gear, tooth bar that are coaxial therewith installing and the decoupling sleeve being sleeved on outside tooth bar；The upper tooth meshing gear of tooth bar；The left end of tooth bar is provided with rack displacement sensor, for measuring tooth bar and decoupling the distance between sleeve lining, so as to will not be come in contact between brake pushrod and transmission mechanism during external power source normal work, so as to realize braking decoupling；Mechanism sets emergent fail-safe mechanism on the basis of mobile decoupling of the brake pedal with master cylinder is realized, while with preferably control flexibility, the effective safety and reliability for ensureing vehicle braking.
Description
Technical field
The utility model is related to automobile decoupling brake apparatus, more particularly to a kind of fail safe decoupling type arrestment mechanism.
Background technology
Traditional vacuum-assisted brake and electric booster braking system are using the power-assisted of pedal force and power source as input power
It is common to promote master cylinder, the decoupling of braking is not realized.Be coupled to pedal force in master cylinder by this force aid system, greatly
The big complexity that increased mechanical structure.And this system is also stricter to the control strategy of power-assisted.When driver misses
When stepping on brake pedal, pedal force can be also delivered in master cylinder, obvious braking effect occur, and driver does not brake now
It is intended to.
The content of the invention
The purpose of this utility model is the shortcoming and defect for overcoming above-mentioned prior art, there is provided a kind of simple structure,
The fail safe decoupling type arrestment mechanism of good braking effect；It has that safe and reliable, noise is small, braking effect is stable and energy-conservation
The advantages of.
The utility model is achieved through the following technical solutions：
A kind of fail safe decoupling type arrestment mechanism, including hydraulic tank 9, master cylinder 5, hydraulic regulating device 8 and wheel cylinder 7；Institute
State two oil supplying holes 56,57 of two outlet difference pipeline connection master cylinders 5 of hydraulic tank 9,64,65 points of two outage of the master cylinder 5
Tong Guo not the connection wheel cylinder 7 of hydraulic regulating device 8；The fail safe decoupling type arrestment mechanism, also including brake pedal 1, braking
Push rod 2, transmission mechanism 3 and external power source 4；
The external power source 4 is used to provide rotating torque to transmission mechanism 3, and the brake pedal 1 is flexibly connected braking
Push rod 2；
The transmission mechanism 3 includes the gear 39 that turbine 38 and being coaxial therewith installs, tooth bar 36 and is sleeved on outside tooth bar 36
The decoupling sleeve 31 in portion；The upper tooth meshing gear 39 of the tooth bar 36；The left end of the tooth bar 36 is provided with rack displacement sensing
Device 361, for measuring tooth bar 36 and decoupling the distance between inwall of sleeve 31, so as to be braked during external 4 normal work of power source
Will not be come in contact between push rod 2 and transmission mechanism 3, so as to realize braking decoupling；
The left end connection brake pushrod 2 of the decoupling sleeve 31；The right-end openings of the decoupling sleeve 31, the master of master cylinder 5
Cylinder push rod 37 connects tooth bar 36 through the opening；
When the brake pedal 1 also includes a braking, the back-moving spring 22 of sense is trampled for simulating；
The side of the brake pedal 1 is provided with the pedal displacement sensor 11 for judging total braking force demand.
The external power source 4 includes the worm screw 41 of controller 42, motor 43 and the power output of motor 43；The worm screw
41 engagement turbines 38, when worm screw 41 rotates, output power to turbine 38, rotate turbine 38；The controlled motor of controller 42
43 operation, the pedal displacement sensor 11 and the difference telecommunication connection controller 42 of rack displacement sensor 361；Controller 42
Rotated according to the displacement of pedal displacement sensor 11, and then motor 43, and turbine is output torque to by worm screw 41
38, rotate turbine 38.
The specific installation site of the back-moving spring 22 is set on master cylinder push rod 37, its one end with decoupling the outer wall of sleeve 31
Offset, the other end is mutually of use with transmission mechanism 3, sense is trampled when back-moving spring 22 is used for simulating brake；When back and forth trampling braking
During pedal 1, brake pushrod 2 can drive the decoupling axially reciprocating of sleeve 31.
The specific installation site of the back-moving spring 22 is set on brake pushrod 2, its one end be arranged on brake pushrod 2
The baffle plate 23 at middle part is connected, and the other end offsets with the right side limiting plate of brake pushrod 2；Baffle plate 23 is not contacted or sliding with brake pushrod 2
Dynamic contact；When back and forth brake pedal 1 is trampled, brake pushrod 2 can drive the decoupling axially reciprocating of sleeve 31.
The specific installation site of the back-moving spring 22 is that one end offsets with the inwall of decoupling sleeve 31, and the other end stretches out decoupling
The right-end openings of sleeve 31, and offseted with the master cylinder shell 51 of master cylinder 5；When back and forth brake pedal 1 is trampled, brake pushrod 2 can
Drive the decoupling axially reciprocating of sleeve 31.
The turbine 38 and the common rotation of gear 39 for being coaxial therewith installing, there is identical corner.
The master cylinder 5 also includes the first feed flow chamber 52, the first brake chamber 54, first piston that are arranged in master cylinder shell 51
60th, the second feed flow chamber 53, the second brake chamber 55, second piston 61.
The left end of the brake pushrod 2 is arranged with the fairlead 21 for providing guide effect for it.
Under normal circumstances, the utility model brake pedal force can't be delivered in master cylinder, the power output of external power source
Master cylinder is promoted as sole power.It forms three times faster than conventional system of the speed of brake pressure.Decoupled by braking, Ke Yishi
Present active brake, then under coordinating correlation displacement sensor, it is possible to achieve the additional function such as self-actuating brake, automatic parking.Pass through
The output power of external power source is adjusted, preferable brake pedal sense can be attained by various vehicles.Decoupling braking system
The brakes united as a new generation, will have the advantages that Conventional braking systems, while overcoming many Conventional braking systems
Shortcoming, with efficiency and faster response speed higher, can realize the actively additional function such as brake, while also having higher
Reliability and security.
In sum, the utility model at least possesses following advantage：Under normal circumstances, between brake pedal and master cylinder not
Contact, so the transmission without power, realizes decoupling.
The utility model uses external power source, and response is rapid, by adjusting external power source power output, can be in difference
Preferable brake pedal sense is reached in vehicle.
The utility model can in case of emergency realize actively brake by the decoupling between brake pedal and master cylinder,
The sensors such as radar for backing car can also be coordinated to realize the functions such as automatic parking.
The utility model increased the fail-safe mechanism of external power source.In the case where external power source fails, drive
The person of sailing continues brake pedal, and brake pushrod promotes decoupling sleeve to advance, and when decoupling sleeve continues side shifting to the left, and overcomes
After gap between tooth bar contacts, the inwall for now decoupling sleeve promotes tooth bar to advance, and is set up by master cylinder push rod and led
Cylinder pressure.Therefore, the power of brake pedal can be still delivered in master cylinder by transmission mechanism.
The utility model simple structure, it is not necessary to change existing master cylinder arrangement.
The utility model technological means is simple and easy to do, possesses small noise, braking effect stabilization, energy-conservation, response rapidly, safely
Efficiently the advantages of.
Brief description of the drawings
Fig. 1 is full decoupled type brakes principle schematic of the utility model with fail safe.
Fig. 2 is the utility model fail safe decoupling type arrestment mechanism structural representation one.
Fig. 3 is the utility model fail safe decoupling type arrestment mechanism structural representation two.
Fig. 4 is the utility model fail safe decoupling type arrestment mechanism structural representation three.
The coordinate of pedal displacement sensor 11 and displacement transducer 311 when Fig. 5 in the utility model control process to decouple
Figure.
Fig. 6 is pedal displacement sensor 11 and displacement transducer when external power source fails in the utility model control process
311 coordinate diagrams.
Specific embodiment
The utility model is more specifically described in detail with reference to specific embodiment.
Embodiment 1
As shown in Figures 1 to 6.The utility model discloses a kind of fail safe decoupling type arrestment mechanism, including hydraulic tank 9,
Master cylinder 5, hydraulic regulating device 8 and wheel cylinder 7；Two oil supplying holes 56 of two outlet difference pipeline connection master cylinders 5 of the hydraulic tank 9,
57, two outages 64,65 of the master cylinder 5 connect wheel cylinder 7 by hydraulic regulating device 8 respectively；The fail safe decoupling type
Arrestment mechanism, also including brake pedal 1, brake pushrod 2, transmission mechanism 3 and external power source 4；
The external power source 4 is used to provide rotating torque to transmission mechanism 3, and the brake pedal 1 is flexibly connected braking
Push rod 2；
The transmission mechanism 3 includes the gear 39 that turbine 38 and being coaxial therewith installs, tooth bar 36 and is sleeved on outside tooth bar 36
The decoupling sleeve 31 in portion；The upper tooth meshing gear 39 of the tooth bar 36；The left end of the tooth bar 36 is provided with rack displacement sensing
Device 361, for measuring tooth bar 36 and decoupling the distance between inwall of sleeve 31, so as to be braked during external 4 normal work of power source
Will not be come in contact between push rod 2 and transmission mechanism 3, so as to realize braking decoupling；
The left end connection brake pushrod 2 of the decoupling sleeve 31；The right-end openings of the decoupling sleeve 31, the master of master cylinder 5
Cylinder push rod 37 connects tooth bar 36 through the opening；
When the brake pedal 1 also includes a braking, the back-moving spring 22 of sense is trampled for simulating；
The side of the brake pedal 1 is provided with the pedal displacement sensor 11 for judging total braking force demand.
The external power source 4 includes the worm screw 41 of controller 42, motor 43 and the power output of motor 43；The worm screw
41 engagement turbines 38, when worm screw 41 rotates, output power to turbine 38, rotate turbine 38；The controlled motor of controller 42
43 operation, the pedal displacement sensor 11 and the difference telecommunication connection controller 42 of rack displacement sensor 361；Controller 42
Rotated according to the displacement of pedal displacement sensor 11, and then motor 43, and turbine is output torque to by worm screw 41
38, rotate turbine 38.
The specific installation site of the back-moving spring 22 is set on master cylinder push rod 37, its one end with decoupling the outer wall of sleeve 31
Offset, the other end is mutually of use with transmission mechanism 3, sense is trampled when back-moving spring 22 is used for simulating brake；When back and forth trampling braking
During pedal 1, brake pushrod 2 can drive the decoupling axially reciprocating of sleeve 31.
The turbine 38 and the common rotation of gear 39 for being coaxial therewith installing, there is identical corner.
The master cylinder 5 also includes the first feed flow chamber 52, the first brake chamber 54, first piston that are arranged in master cylinder shell 51
60th, the second feed flow chamber 53, the second brake chamber 55, second piston 61.
The left end of the brake pushrod 2 is arranged with the fairlead 21 for providing guide effect for it.
Utility model works principle is as follows：According to pedal displacement sensor 11 and displacement transducer 361 to external power
Source 4 applies control；1) during normal work, when driver's brake pedal, controller 42 controls the output of external power source 4
Power size causes the numerical value consistently greater than numerical value of pedal displacement sensor 11, i.e. brake pushrod 2 and driver of displacement transducer 361
Structure 3 keeps certain gap, and brake pedal force is not transferred in master cylinder 5, realizes braking decoupling；Increase external power source 4
Power output so that when the slope of curve of displacement transducer 361 is more than 11 slope of curve of pedal displacement sensor, less pedal force is just
The larger pressure of master cylinder 5 can be obtained, the comfortableness of braking is realized；Reduce the power output of external power source 4 so that displacement sensing
The slope of curve of device 361 be less than 11 slope of curve of pedal displacement sensor when, it is necessary to larger pedal force just can obtain identical
Master cylinder pressure, realizes the brake pedal sense of " hard "；2) when external power source 4 is because of malfunction and failure, driver's brake pedal
When, brake pushrod is moved toward the direction of transmission mechanism 3, and transmission mechanism 3 is motionless；When tooth bar 36 is overcome between decoupling sleeve 31
During gap, brake pushrod 2 promotes tooth bar 36 to move ahead by decoupling sleeve 31, and then promotes transmission mechanism 3 to move together, sets up master
Cylinder pressure.
The decoupling method of the utility model fail safe decoupling type arrestment mechanism, can be achieved by the steps of：
The step of when external 4 normal work of power source：
Brake pedal 1, brake pushrod 2 promotes decoupling sleeve 31 to advance, between decoupling sleeve 31 and master cylinder shell 51
The decoupling sleeves 31 of back-moving spring 22 pairs produce reaction forces, trample sense during for simulating brake；Controller 42 is according to pedal
Displacement transducer 11 draws the power requirement that external power source 4 should produce and drives worm screw 41, slows down by turbine 38, gear 39
After increasing square, tooth bar 36 is imparted power to, moment of torsion is converted into tooth bar 36 is axially moved power, and promotes master cylinder push rod 37；
Master cylinder push rod 37 promotes first piston 60 and second piston 61, and then compresses the first feed flow chamber 52 and the second feed flow chamber
53 so that set up master cylinder pressure；
Hydraulic oil in hydraulic tank 9 flows into wheel cylinder 7 and is braked by two outages 64,65 by hydraulic regulating device 8；
Due to having gap between decoupling sleeve 31 and tooth bar 36, external power source 4 is moved, caused together with carry-over bar 36
The power of brake pedal 1 is not transferred on tooth bar 36, full decoupled between brake pedal 1 and master cylinder 5 so as to realize.
In addition, according to the requirement of relevant regulations, brakes must account for generation and some parts of failure conditions
When breaking down, it is also necessary to which the power that driver can be allowed to step on brake pedal is transferred in brakes, is braked.Therefore when outer
Power source 4 is put to hinder for some reason when failing to produce torque drive worm screw 41, turbine 38, gear 39 and tooth bar 36；Driver after
Continuous brake pedal 1, brake pushrod 2 promotes decoupling sleeve 31 to advance, and when decoupling sleeve 31 continues side shifting to the right, and overcomes
After being contacted with the gap between tooth bar 36, the inwall for now decoupling sleeve 31 promotes tooth bar 36 to advance, by master cylinder push rod
37 set up master cylinder pressure.
Embodiment 2
The present embodiment is in addition to following characteristics, and other features are same as Example 1.
The specific installation site of the back-moving spring 22 is set on brake pushrod 2, its one end be arranged on brake pushrod 2
The baffle plate 23 at middle part is connected, and the other end offsets with the right side limiting plate of brake pushrod 2；Baffle plate 23 is not contacted or sliding with brake pushrod 2
Dynamic contact；When back and forth brake pedal 1 is trampled, brake pushrod 2 can drive the decoupling axially reciprocating of sleeve 31.
Embodiment 3
The present embodiment is in addition to following characteristics, and other features are same as Example 1.
The specific installation site of the back-moving spring 22 is that one end offsets with the inwall of decoupling sleeve 31, and the other end stretches out decoupling
The right-end openings of sleeve 31, and offseted with the master cylinder shell 51 of master cylinder 5；When back and forth brake pedal 1 is trampled, brake pushrod 2 can
Drive the decoupling axially reciprocating of sleeve 31.
As described above, just can preferably realize the utility model.
Implementation method of the present utility model is simultaneously not restricted to the described embodiments, and other are any without departing from of the present utility model
Spirit Essence and the change, modification, replacement made under principle, combine, simplify, should be equivalent substitute mode, being included in
Within protection domain of the present utility model.
Claims (8)
1. a kind of fail safe decoupling type arrestment mechanism, including hydraulic tank (9), master cylinder (5), hydraulic regulating device (8) and wheel cylinder
(7)；Two oil supplying holes (56,57) of two outlets difference pipeline connection master cylinder (5) of the hydraulic tank (9), the two of the master cylinder (5)
Outage (64,65) connects wheel cylinder (7) by hydraulic regulating device (8) respectively；It is characterized in that：
The fail safe decoupling type arrestment mechanism, also including brake pedal (1), brake pushrod (2), transmission mechanism (3) and outer
Put power source (4)；
For providing rotating torque to transmission mechanism (3), the brake pedal (1) is flexibly connected system to the external power source (4)
Dynamic push rod (2)；
Gear (39) that the transmission mechanism (3) is installed including turbine (38) and being coaxial therewith, tooth bar (36) and it is sleeved on tooth bar
(36) outside decoupling sleeve (31)；The upper tooth meshing gear (39) of the tooth bar (36)；The left end of the tooth bar (36) is installed
There is tooth bar displacement transducer (361), for measuring tooth bar (36) and decoupling the distance between sleeve (31) inwall, so that external dynamic
Will not be come in contact between brake pushrod (2) and transmission mechanism (3) during power source (4) normal work, so as to realize braking decoupling；
The left end of decoupling sleeve (31) connects brake pushrod (2)；The right-end openings of decoupling sleeve (31), master cylinder (5)
Master cylinder push rod (37) through the opening connect tooth bar (36)；
When the brake pedal (1) also includes a braking, the back-moving spring (22) of sense is trampled for simulating；
The side of the brake pedal (1) is provided with the pedal displacement sensor (11) for judging total braking force demand.
2. fail safe decoupling type arrestment mechanism according to claim 1, it is characterised in that：External power source (4) bag
Include the worm screw (41) of controller (42), motor (43) and motor (43) power output；The worm screw (41) engages turbine (38),
When worm screw (41) rotates, output power and give turbine (38), rotate turbine (38)；Controller (42) controlled motor (43)
Telecommunication connects controller (42) respectively for operation, the pedal displacement sensor (11) and rack displacement sensor (361)；Controller
(42) according to the displacement of pedal displacement sensor (11), and then motor (43) is rotated, and by worm screw (41) by moment of torsion
Export and give turbine (38), rotate turbine (38).
3. fail safe decoupling type arrestment mechanism according to claim 2, it is characterised in that the back-moving spring (22) is specific
Installation site is set on master cylinder push rod (37), and its one end offsets with decoupling sleeve (31) outer wall, the other end and transmission mechanism
(3) mutually it is of use, sense is trampled when back-moving spring (22) is for simulating brake；When back and forth brake pedal (1) is trampled, brake pushrod
(2) decoupling sleeve (31) axially reciprocating can be driven.
4. fail safe decoupling type arrestment mechanism according to claim 2, it is characterised in that the back-moving spring (22) is specific
Installation site is set on brake pushrod (2), and its one end is connected with the baffle plate 23 being arranged in the middle part of brake pushrod (2), another
End offsets with brake pushrod (2) right side limiting plate；Baffle plate 23 is not contacted or sliding contact with brake pushrod (2)；Trampled when back and forth
During brake pedal (1), brake pushrod (2) can drive decoupling sleeve (31) axially reciprocating.
5. fail safe decoupling type arrestment mechanism according to claim 2, it is characterised in that the back-moving spring (22) is specific
Installation site is one end and the inwall of decoupling sleeve (31) offsets, and the other end stretches out the right-end openings of decoupling sleeve (31), and with
The master cylinder shell (51) of master cylinder (5) offsets；When back and forth brake pedal (1) is trampled, brake pushrod (2) can drive decoupling sleeve
(31) axially reciprocating.
6. the fail safe decoupling type arrestment mechanism according to any one of claim 1 to 5, it is characterised in that：The turbine
(38) and be coaxial therewith install gear (39) common rotation, have identical corner.
7. fail safe decoupling type arrestment mechanism according to claim 6, it is characterised in that：The master cylinder (5) also includes setting
Put the first feed flow chamber (52), the first brake chamber (54), first piston (60), the second feed flow chamber in master cylinder shell (51)
(53), the second brake chamber (55), second piston (61).
8. fail safe decoupling type arrestment mechanism according to claim 6, it is characterised in that：A left side for the brake pushrod (2)
End is arranged with the fairlead (21) for providing guide effect for it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621312728.9U CN206265016U (en) | 2016-12-02 | 2016-12-02 | A kind of fail safe decoupling type arrestment mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621312728.9U CN206265016U (en) | 2016-12-02 | 2016-12-02 | A kind of fail safe decoupling type arrestment mechanism |
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| CN206265016U true CN206265016U (en) | 2017-06-20 |
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| CN201621312728.9U Active CN206265016U (en) | 2016-12-02 | 2016-12-02 | A kind of fail safe decoupling type arrestment mechanism |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106740752A (en) * | 2016-12-02 | 2017-05-31 | 华南理工大学 | A kind of fail safe decoupling type arrestment mechanism and control method |
| CN107458358A (en) * | 2017-07-03 | 2017-12-12 | 清华大学苏州汽车研究院（相城） | A kind of built-in braking PTS device |
| CN109138399A (en) * | 2018-09-28 | 2019-01-04 | 浙江广安建设有限公司 | A kind of exterior wall finishing hanging basket |
| CN112428968A (en) * | 2020-11-30 | 2021-03-02 | 汪金洋 | Foot brake device capable of preventing accidental touch opening |
-
2016
- 2016-12-02 CN CN201621312728.9U patent/CN206265016U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106740752A (en) * | 2016-12-02 | 2017-05-31 | 华南理工大学 | A kind of fail safe decoupling type arrestment mechanism and control method |
| CN106740752B (en) * | 2016-12-02 | 2024-02-06 | 华南理工大学 | Failure protection decoupling type braking mechanism and control method |
| CN107458358A (en) * | 2017-07-03 | 2017-12-12 | 清华大学苏州汽车研究院（相城） | A kind of built-in braking PTS device |
| CN107458358B (en) * | 2017-07-03 | 2024-04-09 | 清华大学苏州汽车研究院（相城） | Built-in brake pedal stroke sensor device |
| CN109138399A (en) * | 2018-09-28 | 2019-01-04 | 浙江广安建设有限公司 | A kind of exterior wall finishing hanging basket |
| CN112428968A (en) * | 2020-11-30 | 2021-03-02 | 汪金洋 | Foot brake device capable of preventing accidental touch opening |
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