CN109515418A - A kind of mechanical actuating mechanism of electronic hydraulic brake system - Google Patents
A kind of mechanical actuating mechanism of electronic hydraulic brake system Download PDFInfo
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- CN109515418A CN109515418A CN201811491711.8A CN201811491711A CN109515418A CN 109515418 A CN109515418 A CN 109515418A CN 201811491711 A CN201811491711 A CN 201811491711A CN 109515418 A CN109515418 A CN 109515418A
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- cylinder
- gear
- actuating mechanism
- mechanical actuating
- brake system
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Classifications
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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
- 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
- B60T13/12—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 the fluid being liquid
-
- 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
- B60T13/662—Electrical control in fluid-pressure brake systems characterised by specified functions of the control system components
Abstract
The invention patent discloses a kind of mechanical actuating mechanism of electronic hydraulic brake system, including deceleration torque increase mechanism, movement conversion mechanism, clearance adjustment mechanism, subdivision sandwich type element, hydraulic cylinder and motor；The present invention using planetary gear train as deceleration torque increase mechanism, will motor torque increase after pass to cylinder, four gradually smaller circular arc type tracks of slope from top to bottom, upper and lower two orbital planes band constant slope are opened up on cylinder；Rotary table rolling element is placed in arc-shaped rail；It is rotated in a circumferential direction by cylinder, driving rotary table rolling element lowest part in arc-shaped rail lower railway face from cylinder scrolls up along orbital plane, it pushes bracket, push rod and push plate to generate axial displacement, further piston is pushed to move up, generate the hydraulic coupling acted on wheel cylinder.Electronic hydraulic brake system mechanical actuating mechanism disclosed by the invention has many advantages, such as that braking is reliable, gap is adjustable, fast response time.
Description
Technical field
The present invention relates to automobile brake-by-wire fields, relate more specifically to a kind of electronic hydraulic brake system field.
Background technique
With being constantly progressive for science and technology and being continuously increased for car ownership, people want vehicle safety performance
Ask growing day by day.Excellent braking ability and integrated chassis Comprehensive Control Technology are that one of Hyundai Motor safety is important
Evaluation index.Although traditional motor vehicle braking system is able to satisfy requirements of the existing brake legislation about braking ability, but also
There are brake efficiencies low, low-response, the disadvantages of structure is complicated, maintenance difficult, brake fluid pollution environment.For this purpose, there has been proposed
It is expected to solve the line control system of problem above, line control brake system comes into being.
Line control brake system is broadly divided into two classes: electromechanical braking system and electronic hydraulic brake system.
Electromechanical braking system mainly by power supply, motor, deceleration torque increase mechanism, movement transforming device, sensor and
Electronic control unit composition.When braking, driver's brake pedal, pedal pressing force sensor and pedal displacement sensor will be stepped on
Plate power and pedal displacement signal pass to electronic control unit.Electronic control unit inputs corresponding electricity by calculating, to motor
Flow control motor exports certain revolving speed and torque, and revolving speed is reduced torque by deceleration torque increase mechanism and increased by the revolving speed and torque
After pass to movement conversion mechanism, the rotational motion from motor is converted to translational motion by movement conversion mechanism, further
Friction plate and brake disc is pushed to generate braking.Electric mechanical braking, due to being carried out by the way of electronics and mechanical bond
Braking, in terms of energy transmission, has casted off traditional fluid pressure line and train brake once and for all, uses motor as the driving of braking
Mechanism has the characteristics that light weight, braking are rapid.Electromechanical braking system was once considered as the master of the following braking execution system
Form is wanted, but there is still a need for many critical issues such as the vehicle-mounted 42V power supply of solution, reliability, fault-tolerance, anti-interference, therefore always
Less than extensive use
Electronic hydraulic brake system is grown up on the basis of traditional liquid braking device, and electronic hydraulic brake system is
It is made of brake pedal unit, hydraulic drive unit, sensor, brake execution unit, electronic control unit.When braking, drive
Member's brake pedal, pedal unit generate counter-force, simulate pedal sense.Pedal pressing force sensor and pedal displacement sensor will
Pedal force and pedal displacement signal pass to electronic control unit, and electronic control unit controls hydraulic drive unit by calculating
Corresponding hydraulic coupling is generated, action of hydraulic force generates braking effect in brake execution unit.Hydraulic drive unit generates hydraulic
Scheme there are two types of power is usual provides master by the high-pressure energy of high pressure accumulator one is hydraulic pump+high pressure accumulator is used
Cylinder pressure or pressure of wheel braking cylinder.One is motor+deceleration mechanisms, and torque is converted on straight-line motion mechanism by motor
Thrust is to push master cylinder or hydraulic cylinder piston to generate brake pressure.Electro-hydraulic brake has compact-sized, improvement braking effect
Energy, noise are small and have better pedal sense.
Electronic hydraulic brake system is as a kind of relatively new type braking system, and development time is shorter, but development prospect
Very wide, major automobile vendor and research institution are all in this system of active development.Electro-hydraulic system is in original liquid
Grow up in pressure braking system, thus on the market it is more using hydraulic pump+high pressure accumulator as hydraulic-driven power
Source.Additional high-voltage power supply, hydraulic lag are needed using hydraulic pump+high pressure accumulator scheme electronic hydraulic brake system
Characteristic is difficult to embody the response quickly of system of line control brake system completely.For this purpose, major colleges and universities have started new model electro-hydraulic system
The correlative study of dynamic system.For example, Yu Zhuoping team, Tongji University has developed a kind of electro-hydraulic with novel decoupling mode
Braking system has applied for related patents.Such as application number: 201510123264.0, which uses the brake pedal with bolt, will
The sliding slot cooperation of the braking intention input control unit of driver, bolt and screw rod is realized mechanically decoupled.Push rod with sliding slot leads to
Articulated manner is crossed to connect with the screw rod mechanism of ball-screw.Ball-screw screw rod pushes master cylinder piston to generate brake force.Tsing-Hua University is big
It learns team among king and has developed one kind for automobile distribution electronic hydraulic brake system, applied for related patents.Such as application number
201110095263.1, for the patent using direct current generator as driving source, the rotary motion of motor shaft passes through ball-screw subband
Piston movement, piston generate brake pressure and are acted on wheel cylinder by pipeline.
Summary of the invention
The purpose of the invention is to overcome the shortcomings of prior art, a kind of machinery of electronic hydraulic brake system is proposed
Executing agency.
In order to achieve the above purpose, the present invention adopts the following technical scheme that:
A kind of mechanical actuating mechanism of electronic hydraulic brake system, including deceleration torque increase mechanism, movement conversion mechanism, gap adjustment
Mechanism, subdivision sandwich type element, hydraulic cylinder and motor；Deceleration torque increase mechanism is used to reduce the revolving speed of motor and torque increases big, packet
Include a sun gear, three mafor planet gears, three small planetary gears, planet carrier and gear ring；Movement conversion mechanism is by motor
Rotary motion is converted to linear motion, the rotary table rolling element and bracket including cylinder, with Small Taper；Clearance adjustment mechanism is for adjusting
Initial position of the whole piston in hydraulic cylinder, including shaft coupling, push rod and push plate；Subdivision sandwich type element is for protecting internal mechanical knot
Structure.Hydraulic cylinder is full of brake fluid, and brake fluid enters brake, hydrodynamic force by brake piping under the promotion of piston.
The sun gear of deceleration torque increase mechanism is directly connected with motor shaft, and sun gear is engaged with three mafor planet gears, and three
Mafor planet gear is with the distribution of central axis isogonism, and mafor planet gear revolves around sun gear, while rotation；Three mafor planet gears with
Three small planetary gears are respectively fixedly connected with, mafor planet gear and small planetary gear revolving speed having the same and direction of rotation；Three
A small planetary gear is engaged with gear ring；Gear ring is fixed on subdivision sandwich type element；Planet carrier is used to support mafor planet gear and small row
Star gear follows mafor planet gear and small planetary gear to rotate, and rotation speed and mafor planet gear and small planetary gear revolve fast
It spends identical；Planet carrier drives cylinder circumferentially to turn close to the lower end of the cylinder of one end of small planetary gear insertion movement conversion mechanism
It is dynamic, a thrust ball bearing is installed, for offsetting braking counter-force between planet carrier and motor.
Four gradually smaller arc-shaped rails of slope from top to bottom, four tracks are opened up on the cylinder of movement conversion mechanism
Through cylinder inner wall and with central axis, circumferentially isogonism is distributed, and two orbital plane bands are centainly oblique up and down for further each track
Degree, inclined direction is inwards；Rotary table rolling element is placed in arc-shaped rail, and outwardly, small end is inwardly for roll body big end；Rotary table rolling element
Taper size and upper and lower two orbital planes gradient size it is numerically consistent；Rotary table rolling element both ends using pin connection type with
Pedestal lower end is connected.
Further, push rod upper end is formed with one section of fine pitch screw thread, and push rod upper end neck is screwed in advance in two nuts.It pushes away
The threaded hole being formed on plate, threaded hole are matched with push rod threaded upper ends, and push rod upper end screws in threaded hole and runs through push plate.It screws off
Two nuts of push plate upper end neck, can lock push rod and push plate.Push rod lower end is polished rod, passes through shaft coupling and pedestal upper end phase
Even,
Further, four are disposed with fixed frame between pedestal upper end and shaft coupling, prevent bracket from generating pendulum in braking process
It is dynamic, improve the stability of mechanical actuating mechanism.
Being symmetrically arranged on the split surface of further subdivision sandwich type element respectively, there are five threaded holes, pass through outer-hexagonal articulation
Hole bolt is located by connecting, and is combined into overall housing.
Further, piston is fixed in push plate, the semi-circular recesses that circumferentially isogonism is distributed of push plate edge four,
The half circular track clearance fit of the semi-circular recesses dissection type case protrusion, anti-thrust plate circumferentially rotate.The semicircle
Shape guide rail top offers threaded hole, and hydraulic cylinder is bolted on subdivision sandwich type element.
Beneficial effects of the present invention: mechanical actuating mechanism of the present invention is using planetary gear train as deceleration torque increase mechanism, phase
Than in using the gear to reduce mechanical actuating mechanism radial dimension as deceleration torque increase mechanism, at the same time, planetary gear train transmission
Have the advantages that transmission ratio is big, high-efficient, preferable deceleration torque increase effect can be reached；Movement conversion mechanism utilizes rotary table rolling element
It is rolled offering in the gradually smaller circular arc type track of slope from top to bottom, generates axial displacement, realize braking function；Into one
Step, slope gradually becomes smaller track from top to bottom, and rotary table rolling element generates larger in the larger energy of braking initial stage track slope
Axial displacement, brake lining is not yet contacted with brake disc at this time, and brake drag is small, is conducive to quickly to eliminate brake lining and system
Gap between dynamic pincers；As rotary table rolling element continues to roll, the slope of orbital plane is gradually become smaller, and axial force gain effect becomes
Greatly, the brake force of generation increases；Contact of the rotary table rolling element with orbital plane contacts for line, can improve fatigue strength；The length of automobile
Time uses, and brake pad wear causes braking ability to decline, push plate and push rod by the way of the thread connection of fine pitch,
Piston is adjusted in the relative position of hydraulic cylinder by adjusting push rod, restores braking ability.
Detailed description of the invention
Fig. 1 is the schematic diagram of the section structure of mechanical actuating mechanism in the embodiment of the present invention.
Fig. 2 is the planetary gear train scheme of installation of mechanical actuating mechanism in the embodiment of the present invention.
Fig. 3 is the subdivision sandwich type element of mechanical actuating mechanism in the embodiment of the present invention.
Fig. 4 is the push plate of mechanical actuating mechanism in the embodiment of the present invention.
Fig. 5 is the hydraulic cylinder of mechanical actuating mechanism in the embodiment of the present invention.
Fig. 6 is the push rod of mechanical actuating mechanism in the embodiment of the present invention.
Fig. 7 is the fixed frame of mechanical actuating mechanism in the embodiment of the present invention.
Fig. 8 is the bracket of mechanical actuating mechanism in the embodiment of the present invention.
Fig. 9 is the cylinder of mechanical actuating mechanism in the embodiment of the present invention.
Figure 10 is the rotary table rolling element of mechanical actuating mechanism in the embodiment of the present invention.
In figure: 1- motor；6- subdivision sandwich type element；21- sun gear；22- mafor planet gear；25- small planetary gear；46- connection
Axis device；42- push plate；31- bracket；5- hydraulic cylinder；51- piston；52- sealing ring；44- push rod；13- nut；43- fixed frame；33-
Cylinder；32- rotary table rolling element；23- gear ring；24-planet carriers；7- thrust ball bearing.
Specific embodiment
The present invention will be further explained with reference to the accompanying drawing and explanation:
Embodiment 1, as shown in Figure 1, include deceleration torque increase mechanism 2, movement conversion mechanism 3, clearance adjustment mechanism 4, caliper 5,
Subdivision sandwich type element 6 and motor 1；Deceleration torque increase mechanism 2 is used to reduce the revolving speed of motor 1 and torque increases, including a sun
Take turns 21, three mafor planet gears, 22, three small planetary gears 25, planet carrier 24 and gear ring 23；Movement conversion mechanism 3 is in the future
Linear motion is converted to from the rotary motion of motor 1, the rotary table rolling element 32 and bracket 31 including cylinder 33, with Small Taper；Between
Gap adjustment mechanism 4 is pushed away for adjusting brake lining 51 in the initial position of braking clamp body 52, including push rod 44, push plate 42 and cylinder
Block 41；Caliper 5 is the executing agency for generating braking, including braking clamp body 52 and brake lining 51；Subdivision sandwich type element 6 is for protecting
Protect internal mechanical structure.
Deceleration torque increase mechanism 2 is mainly made of planetary gear train, and the scheme of installation of planetary gear train is as shown in Figure 2.Sun gear
21 are directly connected with the axis of motor 1, and sun gear 21 is engaged with three mafor planet gears 22, and three mafor planet gears 22 are with central axis
The distribution of line isogonism, mafor planet gear 22 is around the revolution of sun gear 21 rotation simultaneously；Three mafor planet gears 22 and three asteroid teeth
Wheel 25 is respectively fixedly connected with；It is formed with one of groove on 6 inner wall of subdivision sandwich type element, gear ring is placed in groove, and fixed；Planet carrier 24
It is used to support mafor planet gear 22 and small planetary gear 25, mafor planet gear 22 and small planetary gear 25 is followed to rotate, rotation speed
It spends identical as the revolution speed of mafor planet gear 22 and small planetary gear 25；Planet carrier 24 is embedding close to one end of small planetary gear 25
Enter the lower end of the cylinder 33 of movement conversion mechanism 3, cylinder 33 is driven to circumferentially rotate；One is equipped between planet carrier 24 and motor 1
A thrust ball bearing 19, for offsetting braking counter-force.
33 structure of cylinder of the present invention is as shown in figure 9, open up four gradually smaller circular arcs of slope from top to bottom on cylinder 33
Shape track, four tracks run through 33 inner wall of cylinder, and circumferentially isogonism is distributed with central axis, above and below further each track
Two orbital planes band constant slope, inclined direction is inwards；Rotary table rolling element 32 is placed in arc-shaped rail, and rotary table rolling element 32 is big
Outwardly, small end is inwardly at end；The taper size of rotary table rolling element 32 and upper and lower two orbital planes gradient size are numerically consistent；Rotary table
32 both ends of rolling element are connected using pin connection type with 31 lower end of bracket.
44 structure of push rod of the present invention is as shown in fig. 6,44 upper end of push rod is formed with one section of fine pitch screw thread, 44 upper end neck of push rod
It screws in two nuts 13 in advance.The threaded hole being formed in push plate 42, threaded hole are matched with 44 threaded upper ends of push rod, push rod 44
Upper end screws in threaded hole and runs through push plate 42.By the relative position for adjusting the adjustable piston 51 of precession amount of push rod 44.It adjusts
After the completion of section, push rod 44 upper end neck, two nuts are screwed off, push rod 44 and push plate 42 can be locked.44 lower end of push rod is polished rod,
It is connected by shaft coupling 46 with 31 upper end of bracket, cylinder pushing block is fixed in push plate 42.
32 structure of rotary table rolling element of the present invention is as shown in Figure 10, since rotary table rolling element 32 has certain taper.When braking,
Inside moment of flexure will be generated.When releasing braking, outside moment of flexure will be generated.In order to eliminate moment of flexure, between bracket and shaft coupling
It is provided with fixed frame 43, moment of flexure is offset, while preventing bracket from generating swing in braking process, improves electromechanical brake
Stability.
The present invention using subdivision sandwich type element 6,6 structure of subdivision sandwich type element as shown in figure 3, subdivision sandwich type element 6 subdivision
Being symmetrically arranged on face, there are five threaded holes, are located by connecting by outer-hexagonal articulation hole nut, are combined into overall housing.
Plate pushing structure of the present invention as shown in figure 4,42 edge four of push plate circumferentially isogonism distribution semi-circular recesses,
Raised semi arch orbit gap cooperates on semi-circular recesses and brake caliper 10, and the anti-generation of thrust plate 42 circumferentially rotates.
Further, piston 5 is fixed in push plate 7, and the semi-circular recesses of 7 edge of push plate, four isogonism distribution cut open
Half circular track is provided on 2 inner wall of fraction shell, anti-thrust plate 7 circumferentially rotates.The half circular track top offers spiral shell
Pit, hydraulic cylinder 9 are bolted on subdivision sandwich type element 2.
The working principle of the invention: motor 1 drives sun gear 21 to rotate, while driving three mafor planet gears being meshed
22 revolve around sun gear 21.Three mafor planet gears 22 are fixedly connected with three small planetary gears 25, i.e., mafor planet gear 22 with
The revolving speed having the same of small planetary gear 25 and direction of rotation.Small planetary gear 25 is engaged with gear ring 23, and gear ring 23, which is fixed on, to be cutd open
On fraction shell 6, cylinder 33 and planet carrier 24 are fixed, circumferentially rotate together in company with planet carrier 24.It realizes 1 power output of motor
Square is increased to be transmitted on cylinder 33.When planet carrier 24 drives cylinder 33 to circumferentially rotate, drive rotary table rolling element 32 from cylinder
The lowest part in the lower railway face of arc-shaped rail scrolls up along orbital plane on 33.Due to 42 upper half circular groove of push plate with cut open
The raised track clearance fit of fraction shell, therefore push plate 42, push rod 44 and bracket 43 will not circumferentially rotate.Bracket 43
Lower end connects 32 both ends of rotary table rolling element, and the rolling of rotary table rolling element 32 pushes bracket 43 to generate axial displacement, the axial displacement
It is acted in push plate 42 by push rod 44, push plate 42 pushes piston 51 to generate brake pressure again.Due to track slope from top to bottom
It gradually becomes smaller, rotary table rolling element 32 can generate biggish axial displacement in the braking initial stage, be conducive to quickly eliminate braking lining
The gap of piece and brake disc.As rotary table rolling element 32 continues to roll, the slope of orbital plane is gradually become smaller, and axial displacement is slack-off,
Axial force gain effect becomes larger, and the hydraulic coupling of generation increases.
When braking, by adjusting the input current and duty ratio of motor 1, the output torque of motor 1 is controlled.The torsion of motor 1
Square passes to cylinder 33, and then rotary table of the drive arrangement in the arc-shaped rail on cylinder 33 by the amplification of deceleration torque increase mechanism
Rolling element 32 is rolled to corresponding position, generates certain axial displacement, thus adjusts the hydraulic coupling of wheel cylinder.
When releasing braking, control motor 1 is rotated backward, and output torque passes to cylinder 33 after amplification, and cylinder 33 is anti-
It to rotation, drives rotary table rolling element 32 to roll along the upper rail face that cylinder 32 gets on the right track, bracket 31 is retracted, further will
Push plate 42 and piston 51 retract, pressure of wheel braking cylinder decline.
In order to more succinct in description, the above implementation method takes exemplary reality only for expression the principle of the present invention
Mode is applied, the present invention is not limited thereto.For the ordinary skill in the art, do not depart from spirit of the invention and
Improvement of the present invention under the premise of essence is also considered as within the scope of the present invention.
Claims (7)
1. a kind of mechanical actuating mechanism of electronic hydraulic brake system, it is characterised in that: including deceleration torque increase mechanism (2), movement
Switching mechanism (3), clearance adjustment mechanism (4), subdivision sandwich type element (6), hydraulic cylinder (5) and motor (1)；Deceleration torque increase mechanism (2)
Increase for reducing the revolving speed of motor (1) with torque, including a sun gear (21), three mafor planet gears (25), three
Small planetary gear (25), planet carrier (24) and gear ring (23)；Movement conversion mechanism (3) will turn from the rotary motion of motor (1)
It is changed to linear motion, the rotary table rolling element (23) and bracket (31) including cylinder (33), with Small Taper；Clearance adjustment mechanism (4)
For adjusting piston (51) in the initial position of hydraulic cylinder (5), including shaft coupling (46), push rod (44), push plate (42) and piston
(51)；Subdivision sandwich type element (6) is for protecting internal mechanical structure；Hydraulic cylinder (5) is full of brake fluid, and brake fluid is in piston (51)
Brake is entered by brake piping under pushing, hydrodynamic force.
2. a kind of mechanical actuating mechanism of electronic hydraulic brake system as described in claim 1, it is characterised in that: deceleration torque increase
Sun gear (21) axis of mechanism (2) is directly connected with the axis of motor (1), and sun gear (21) is nibbled with three mafor planet gears (25)
It closes, three mafor planet gears (25) are revolved with the distribution of central axis isogonism, mafor planet gear (25) around sun gear (21), while from
Turn；Three mafor planet gears (25) are respectively fixedly connected with three small planetary gears (25), mafor planet gear (25) and asteroid
Gear (25) revolving speed having the same and direction of rotation；Three small planetary gears (25) are meshed with gear ring (23)；Gear ring (23)
It is fixed on subdivision sandwich type element (6)；Planet carrier (24) is used to support mafor planet gear (25) and small planetary gear (25), follows big
Planetary gear (25) and small planetary gear (25) rotation, the public affairs of rotation speed and mafor planet gear (25) and small planetary gear (25)
Rotary speed is identical；The cylinder (33) of one end insertion movement conversion mechanism (3) of planet carrier (24) close small planetary gear (25)
Lower end drives cylinder (33) to circumferentially rotate；One thrust ball bearing is installed, for supporting between planet carrier (24) and motor (1)
Disappear braking counter-force.
3. a kind of mechanical actuating mechanism of electronic hydraulic brake system as described in claim 1, it is characterised in that: movement conversion
Four are opened up on the cylinder (33) of mechanism (3), and the gradually smaller arc-shaped rail of slope, four tracks run through cylinder from top to bottom
(33) inner wall, and circumferentially isogonism is distributed with central axis, further each track up and down incline with constant slope by two orbital planes
Tilted direction is inwards；Rotary table rolling element (23) is placed in arc-shaped rail, and outwardly, small end is inwardly for roll body big end；Rotary table rolling element
(23) taper size and upper and lower two orbital planes gradient size are numerically consistent；Rotary table rolling element (23) both ends are connected using pin
Mode is connect to be connected with bracket (31) lower end.
4. a kind of mechanical actuating mechanism of electronic hydraulic brake system as described in claim 1, it is characterised in that: further
, push rod (44) upper end is formed with one section of fine pitch screw thread, and push rod (44) upper end neck is screwed in advance in two nuts；Push plate (42)
On the threaded hole that is formed with, threaded hole matches with push rod (44) threaded upper ends, and push rod (44) upper end screws in threaded hole and through pushing away
Plate (42)；Push plate (42) upper end two nuts (45) of neck are screwed off, it can be locked by push rod (44) and push plate (42)；Under push rod (44)
End is polished rod, is connected by shaft coupling (46) with bracket (31) upper end.
5. a kind of mechanical actuating mechanism of electronic hydraulic brake system as described in claim 1, it is characterised in that: four brackets
(31) it is disposed between upper end and shaft coupling (46) fixed frame (43), prevents bracket (31) from generating swing in braking process, mention
The stability of high mechanical actuating mechanism.
6. a kind of mechanical actuating mechanism of electronic hydraulic brake system as described in claim 1, it is characterised in that: dissection type shell
Being symmetrically arranged on the split surface of body (6), there are five threaded holes, are located by connecting, are combined into whole by outer-hexagonal articulation hole nut
Body shell body.
7. a kind of mechanical actuating mechanism of electronic hydraulic brake system as described in claim 1, it is characterised in that: cylinder pushing block
It is fixed on push plate (42), the semi-circular recesses that circumferentially isogonism is distributed of push plate (42) edge four, subdivision sandwich type element (6)
The half circular track being provided with, anti-thrust plate (42) circumferentially rotate；The half circular track top offers threaded hole, hydraulic cylinder
(5) it is bolted on subdivision sandwich type element (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811491711.8A CN109515418B (en) | 2018-12-07 | 2018-12-07 | Mechanical actuating mechanism of electronic hydraulic braking system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811491711.8A CN109515418B (en) | 2018-12-07 | 2018-12-07 | Mechanical actuating mechanism of electronic hydraulic braking system |
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| Publication Number | Publication Date |
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| CN109515418A true CN109515418A (en) | 2019-03-26 |
| CN109515418B CN109515418B (en) | 2021-07-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811491711.8A Active CN109515418B (en) | 2018-12-07 | 2018-12-07 | Mechanical actuating mechanism of electronic hydraulic braking system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111605532A (en) * | 2020-06-01 | 2020-09-01 | 长沙理工大学 | Connecting rod type power-assisted brake assembly |
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|---|---|---|---|---|
| US5667283A (en) * | 1996-04-15 | 1997-09-16 | General Motors Corporation | Variable screw-driven system |
| CN201162795Y (en) * | 2008-03-11 | 2008-12-10 | 浙江亚太机电股份有限公司 | Vehicle electronic-mechanical braking system actuating mechanism |
| CN104071142A (en) * | 2014-07-08 | 2014-10-01 | 清华大学 | Driven-by-wire brake system for electric automobile |
| CN104787021A (en) * | 2014-01-17 | 2015-07-22 | 日信工业株式会社 | Electric actuator and vehicle brake system |
| CN106402315A (en) * | 2015-07-31 | 2017-02-15 | 罗伯特·博世有限公司 | Rotation/translation converter gear unit |
-
2018
- 2018-12-07 CN CN201811491711.8A patent/CN109515418B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5667283A (en) * | 1996-04-15 | 1997-09-16 | General Motors Corporation | Variable screw-driven system |
| CN201162795Y (en) * | 2008-03-11 | 2008-12-10 | 浙江亚太机电股份有限公司 | Vehicle electronic-mechanical braking system actuating mechanism |
| CN104787021A (en) * | 2014-01-17 | 2015-07-22 | 日信工业株式会社 | Electric actuator and vehicle brake system |
| CN104071142A (en) * | 2014-07-08 | 2014-10-01 | 清华大学 | Driven-by-wire brake system for electric automobile |
| CN106402315A (en) * | 2015-07-31 | 2017-02-15 | 罗伯特·博世有限公司 | Rotation/translation converter gear unit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111605532A (en) * | 2020-06-01 | 2020-09-01 | 长沙理工大学 | Connecting rod type power-assisted brake assembly |
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|---|---|
| CN109515418B (en) | 2021-07-02 |
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