CN110486394A - A kind of self energizing effort brake-by-wire device - Google Patents
A kind of self energizing effort brake-by-wire device Download PDFInfo
- Publication number
- CN110486394A CN110486394A CN201910710210.2A CN201910710210A CN110486394A CN 110486394 A CN110486394 A CN 110486394A CN 201910710210 A CN201910710210 A CN 201910710210A CN 110486394 A CN110486394 A CN 110486394A
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- CN
- China
- Prior art keywords
- brake
- connecting rod
- piston
- braking
- clamp body
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
- F16D55/02—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members
- F16D55/22—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads
- F16D55/224—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members
- F16D55/225—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads
- F16D55/226—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads in which the common actuating member is moved axially, e.g. floating caliper disc brakes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/38—Slack adjusters
- F16D65/40—Slack adjusters mechanical
- F16D65/52—Slack adjusters mechanical self-acting in one direction for adjusting excessive play
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2121/00—Type of actuator operation force
- F16D2121/02—Fluid pressure
- F16D2121/04—Fluid pressure acting on a piston-type actuator, e.g. for liquid pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2121/00—Type of actuator operation force
- F16D2121/18—Electric or magnetic
- F16D2121/24—Electric or magnetic using motors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2123/00—Multiple operation forces
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2127/00—Auxiliary mechanisms
- F16D2127/06—Locking mechanisms, e.g. acting on actuators, on release mechanisms or on force transmission mechanisms
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The present invention relates to a kind of self energizing effort brake-by-wire device, including motor, transmission mechanism, swingle, the connecting rod with wedge-shaped regulating mechanism, big piston, small piston, elastic positioning devices etc..Motor drives swingle movement by transmission mechanism, the movement of the connecting rod with wedge-shaped regulating mechanism is driven by swingle movement, big piston and braking clamp body is driven to move in the opposite direction, friction plate is compressed from brake disc two sides with identical power, it realizes efficient self energizing effort braking effect, while avoiding mistake caused by other factors from main brake.The configuration of the present invention is simple, reliable operation, braking efficiency is high, can automatically adjust brake clearance, and compensation is influenced as caused by friction disc wear, the design of simplified control system can be used for service brake and parking braking.
Description
Technical field
The present invention relates to brake fields, existing floating caliper type disc liquid braking device can be specifically replaced, with automatically controlled machine
The mode of tool realizes that friction plate clamps brake disc from two sides with identical pressure, while it is adjustable to may be implemented brake clearance, braking
The adjustable line traffic control mechanical brake of intensity, refers in particular to a kind of self energizing effort brake-by-wire device.
Background technique
Brake-by-wire technology is a kind of novel braking technology occurred in recent years, between brake and brake pedal not
It is realized by the information control motor work of control system receiving sensor for automobile by mechanical or fluid power connection
Reliable and stable control for brake.Mainly there are electro-hydraulic formula braking system (EHB) and mechanical type brake system electric at present
(EMB) two kinds.Line control brake system is conducive to the optimization of braking performance of vehicle, can be easily other with ABS, ASR, ESP etc.
Electronic control system combines, therefore has wide development space.
For electro-hydraulic formula braking system (EHB) from traditional brake fluid system transformation, braking process is rapider,
Stablize, improves the braking safety and comfort of automobile, but due to remaining hydraulic unit, do not have complete brake-by-wire system
The all advantages of system are often viewed as the earlier product of one kind of mechanical type brake system electric (EMB).
Mechanical type brake system electric (EMB) realizes braking process by motor drive machinery mechanism, enormously simplifies system
The structure of dynamic system, makes brake more easily arrange, assemble and overhauls.But existing mechanical type brake system electric due to
Part brake often lacks the function of brake clearance automatic adjustment, makes brake in external environmental change and friction disc wear
In the case where cause brake actuator efficiency change indefinite problem, thus to brake efficiency control bring certain difficulty.Together
When, the problems such as that there are structures is more complicated for most of brake, and installation dimension is larger.
Current electromechanical brake is all based on greatly disk brake and designs, and introduces in electromechanical brake
Wedge-type mechanism can produce the effect of self energizing effort, by lesser motor driving force, obtain biggish brake efficiency.Disc type system
The free clearance very little of dynamic device, when being contacted due to impurity, unevenness etc. between friction plate and brake disc, due to wedge
The self energizing effort characteristic of formula mechanism, it is easy to the case where mistake braking occur.
Summary of the invention
It is an object of the invention to propose a kind of self energizing effort brake-by-wire device.The present invention has structure simple, reliable operation
The advantages that, it can be realized the automatic adjustment of brake clearance, while by the cooperation of big piston and mounting hole, wedge-type mechanism being avoided to produce
While being born from reinforcement effect, there is the case where accidentally braking.
Realize that the technical solution of the object of the invention is as follows:
A kind of self energizing effort brake-by-wire device includes motor, transmission mechanism, wedge-shaped regulating mechanism, swingle, connecting rod, bullet
Property positioning device, big piston, small piston, braking clamp body, brake disc, friction plate；It is characterized by: the friction plate has two
Piece is arranged symmetrically in the brake disc two sides, and one is mounted on the big piston, and one is mounted on the caliper
On body；The big piston is mounted in the mounting hole on the braking clamp body via the elastic positioning device；It is described
Elastic positioning device a part be fixedly mounted on the braking clamp body, another part has larger with the big piston space
Frictional force, when having relative displacement between the big piston and the braking clamp body, due to frictional force effect make it is described
Elastic positioning device in generate elastic potential energy；The power input element of the motor connection transmission mechanism；It is described
Transmission mechanism the power output element connection swingle, the swingle and the small piston/braking clamp body
Between connected using the connecting rod；The wedge-shaped regulating mechanism is mounted in the connecting rod, including wedge block and
Actuation mean can make the connection pole length change when wedge block moves under actuation mean effect；Described
Small piston is mounted on the braking clamp body, and one end is connect with the connecting rod, and the other end includes having certain slope
Curved-surface structure；Big piston one end installation friction plate, the curved surface knot of the other end setting and the small piston
The corresponding curved-surface structure of structure；The curved end of the big piston constitutes with the cooperation of the curved end of the small piston and contacts song
Face.
There is gap between mounting hole on the big piston and the braking clamp body, this gap size is greater than braking work
From friction plate and brake disc to deflection when generating maximum brake efficiency in big piston and small piston contact surface in work
On feedback, less than feedback of the free clearance between friction plate and brake disc on big piston and small piston contact surface.That is,
When braking operation, friction plate and brake disc produce on the curved surface between big piston and small piston since frictional force is acted on
Raw relative movement, realizes self energizing effort effect, when reaching maximum severity of braking, big piston is not contacted with mounting hole.When due to rubbing
When impurity or unevenness between pad and brake disc etc. contact the two, it can also be generated on the curved surface between big small piston
Relative movement, before free clearance is completely eliminated, big piston is contacted with mounting hole, because without self energizing effort effect.
The connecting rod is divided into left side section and right side section, the wedge block and the connection by the wedge block
There is location feature in the junction of bar, connects the left side section of the connecting rod and right side section reliably by the wedge block
Together, left side section can only move in the axial direction relative to the right side section, the phase in other directions can not occur
To movement, the wedge block can only move in the connecting rod along the motivator direction of the actuation mean, can not
The movement or rotation in other directions are realized, to improve Assembly stability and functional reliability.
Connection between the connecting rod and the swingle/small piston/braking clamp body, can pass through the company
Position when relative motion between extension bar and the swingle/small piston/braking clamp body meets brake operation between component
Variation, can also pass through the flexible deformation of junction between the connecting rod and the swingle/small piston/braking clamp body
Change in location when meeting brake operation between component.
When the transmission link for being zero without reverse efficiency in the transmission mechanism, the motor is realized using lockable mechanism
Parking braking under power blackout situation, the lockable mechanism use electromagnetic brake or electric-controlled mechanical brake apparatus, can be logical
It is disconnected when electric, actuated element when power-off in fixed conveyor link keeps pressure between the friction plate and the brake disc
Size, realize parking braking function；When being provided with the transmission link that reverse efficiency is zero in the transmission mechanism, Ke Yili
Realize parking braking with the lockable mechanism, also can use reverse efficiency is zero, power and movement can not back transfer, realize
Parking braking under the motor power blackout situation.
It further include that the swingle is supported on the braking clamp body, only in the small piston and the rotation
The connecting rod is set between bar；Or the swingle is supported on the small piston, only in the caliper
The connecting rod is set between body and the swingle.
It further include being rubbed in the position that the big piston and the small piston curved surface cooperate using roller mechanism with reducing
Wipe resistance.
It further include the setting friction limiting device between the small piston and the braking clamp body, the friction limit
Position device a part is fixedly mounted on the braking clamp body, there is biggish friction between another part and the small piston
Power, when having relative displacement between the small piston and the braking clamp body, since frictional force effect makes the friction
Elastic potential energy is generated in limiting device；When small piston and big piston move together, the axial bullet of big piston elastic positioning device
Power is less than the axial elastic force of small piston friction limiting device.
Contact surface between the big piston and the small piston can be inclined-plane, arc surface, hyperbola face, throw
The combination of the curved surfaces such as object line face or above-mentioned curved surface.
The wedge block is mounted on can be self-locking in the connecting rod, i.e., along the pitman shaft to pressing force
The wedge block can not be made mobile relative to the connecting rod.
Detailed description of the invention
Fig. 1 is a kind of main view of the embodiment one of self energizing effort brake-by-wire device of the invention.
Fig. 2 is a kind of main view of the embodiment two of self energizing effort brake-by-wire device of the invention.
Fig. 3 is that a kind of wedge block of self energizing effort brake-by-wire device of the invention and a kind of location feature in connecting rod junction show
It is intended to.
Explanation: the big piston 5- mandrel 6- connecting rod 7- of 1- braking clamp body 2- swingle 3- worm gear 4- is marked in attached drawing
Worm screw 8- wedge block 9- locking wheel 10- motor 11- motor shaft 12- electromagnetic brake 13- large sealing packing ring 14- small piston
The oblique spring 19- driven gear 20- electromagnetic coil 21- return spring of 15- friction plate 16- brake disc 17- frustum snap ring 18-
22- lock pin 23- small sealing ring 24- driving gear 25- snap ring 26- spring 27- actuates spring 28- locating slide sleeve
Specific embodiment
With reference to attached drawing 1, one embodiment of the present of invention is described in detail.
As shown in Figure 1, a kind of self energizing effort brake-by-wire device includes a braking clamp body (1), in the jaw of braking clamp body (1)
Have brake disc (16), the two sides of brake disc (16) have friction plate (15), and one is mounted on braking clamp body (1), and one mounted in big living
Fill on (4), big piston (4) by large sealing packing ring (13) on braking clamp body (1), large sealing packing ring (13) and big piston (4)
There is biggish frictional force between contact surface, it is big close when the displacement of big piston (4) is in the regime of elastic deformation of large sealing packing ring (13)
Without relative motion between seal (13) and the contact surface of big piston (4).The other end of big piston (4) has inclined-plane, has tiltedly with same
The small piston (14) in face is coupled, and small piston (14) is through snap ring (25) on braking clamp body (1), and snap ring (25) is by spring
(26) push the side far from brake disc (16) to, spring (26) is mounted on braking clamp body (1).Snap ring (25) and small piston (14)
Contact surface between have biggish frictional force, when the displacement of small piston (14) is in the regime of elastic deformation of spring (26), snap ring
(25) without relative motion between the contact surface of small piston (14).The other side of small piston (14) has swingle (2), connecting rod (6)
Hinge connects the one end of swingle (2) and the other end and braking clamp body (1) of small piston (14) and swingle (2), swingle
(2) center and mandrel (5) is fixedly mounted, and mandrel (5) is fixedly connected with worm gear (3), the worm screw with worm gear (3) cooperating
(7) it is driven by motor (10).Equipped with wedge-shaped regulating mechanism in connecting rod (6), wedge block (8) and spring (27), wedge block are actuated
(8) connecting rod (6) is divided into two sections, the left side section and right side section of wedge block (8), the two sides of wedge block (8) respectively with left side section
It is combined with right side section with location feature-T-shape slot, keeps the left side section of connecting rod (6) and right side section reliable by wedge block (8)
It links together, left side section can only move in the axial direction relative to right side section, the relative motion in other directions can not occur, protect
Demonstrate,prove the Assembly stability and functional reliability of connecting rod (6).Wedge block (8) can only be transported along the motivator direction for actuating spring (23)
It is dynamic.When left side section moves in the axial direction relative to right side section, make between connecting rod (6) and the contact surface of wedge block (8) between appearance
When gap, actuating spring (23) keeps wedge block (8) mobile to small end, to compensate gap.Between wedge block (8) and connecting rod (6)
Pressing contact face is self-locking, i.e., when applying active force compression wedge block (8) along the axis direction of connecting rod (6), wedge block (8) and company
Extension bar (6) is opposing stationary.
When braking operation, motor (10) drives swingle (2) to rotate by worm gear mechanism, the both ends of swingle (2)
It moves round about respectively, drives connecting rod (6) movement, push braking clamp body (1) to move right, big piston (4)/small piston
(14) it moves downward, i.e., big piston (4)/small piston (14) and braking clamp body (1) move in the opposite direction, when friction plate (15)
It is contacted with brake disc (16), when generating frictional force, due to the curved surface effect between frictional force and big small piston, makes big piston (4)
It is mobile relative to small piston (14), realize self energizing effort effect.When reaching maximum severity of braking, big piston (4) and mounting hole are not connect
Touching.At this point, flexible deformation occurs for large sealing packing ring (13), elastic potential energy, the contact surface of large sealing packing ring (13) and big piston (4) are stored
Between without relative motion, meanwhile, snap ring (25) and small piston (14) move together, compressed spring (26), spring (26) occur elasticity
Deformation stores elastic potential energy, also without relative motion between snap ring (25) and the contact surface of small piston (14).When releasing braking operation,
Motor (10) drives swingle (2) and connecting rod (6) to rotate backward together by worm gear mechanism, make large sealing packing ring (13) and
The elastic potential energy release of spring (26) storage, big piston (4)/small piston (14) and braking clamp body (1) relative motion, all elements
Restore initial position.
When friction plate (15) are worn, after thickness is thinning, when braking operation, motor (10) drives rotation by worm gear mechanism
Bull stick (2) rotation, pushes big piston (4)/small piston (14) and braking clamp body (1) relative motion, large sealing packing ring (13) and spring
(26) when elastic deformation amount reaches maximum, since friction plate (15) are worn, braking effect is bad, and motor (10) continues to drive at this time
Dynamic swingle (2) rotation, i.e., big piston (4)/small piston (14) and braking clamp body (1) continue relative motion, therefore, large sealing packing ring
(13) and spring (26) keeps maximum flexibility deflection, and big piston (4) overcomes the frictional force between large sealing packing ring (13), small
Piston (14) overcomes the frictional force between snap ring (25), is matched with new contact surface, i.e., big piston (4)/small piston (14)
It is greater than the maximum flexibility deflection of large sealing packing ring (13)/spring (26) relative to the displacement of braking clamp body (1).When releasing braking,
Motor (10) drives worm gear mechanism reversion, drives swingle (2) to reversely rotate, large sealing packing ring (13)/spring (26) bullet
Property potential energy release, make big piston (4)/small piston (14) and braking clamp body (1) relative motion, at this time large sealing packing ring (13) and greatly work
It fills in (4), snap ring (25) and small piston (14) to position with new contact surface cooperation, when large sealing packing ring (13)/spring (26) elasticity
After potential energy discharges completely, the position of big piston (4)/small piston (14) and braking clamp body (1) is remained stationary, and motor (10) drives rotation
Bull stick (2) and the hinged part on it of connecting rod (6) continue to move, and to be returned to initial position, and connecting rod (6) is hinged on
Part on small piston (14) and braking clamp body (1) then remains stationary, therefore between the left side section and right side section of connecting rod (6)
Distance becomes larger, and gap occurs between connecting rod (6) and the contact surface of wedge block (8), and actuating spring (27) makes wedge block (8) Xiang little Duan
It is mobile, gap is compensated, so that the length of connecting rod (6) be made to increase.Big piston (4)/small piston (14) and braking clamp body (1) at this time
Return displacement be still the maximum flexibility deflection of spring (26), therefore it is identical as before abrasion to maintain brake clearance, real
The adjust automatically of brake clearance is showed.
When needing parking braking, so that motor (10) driving friction plate (15) is compressed brake disc (16), reach parking braking
It is required that realizing the parking braking under motor (10) power blackout situation using the Worm and worm-wheel gearing that reverse efficiency is zero.Or benefit
Parking braking function is realized with lockable mechanism.
With reference to attached drawing 2, another embodiment of the invention is described.
The embodiment of attached drawing 2 and the embodiment main distinction of attached drawing 1 are as follows:
Transmission mechanism is different, is driven in attached drawing 1 using worm gear mechanism, and the mandrel (5) being fixedly connected with worm gear (3) is
The power output element of transmission mechanism is fixedly connected with swingle (2)；Gear mechanism transmission is used in attached drawing 2, with driven gear
(19) mandrel (5) being fixedly connected is the power output element of transmission mechanism, is fixedly connected with swingle (2).
Elastic positioning device is different, realizes flexibly positioned function using large sealing packing ring (13) in attached drawing 1, utilizes large sealing packing ring
(13) flexible deformation stores elastic potential energy；Flexibly positioned function is realized using oblique spring (18) and frustum snap ring (17) in attached drawing 2
Can, flexible deformation, which is generated, using oblique spring (18) stores elastic potential energy.
The limiting device that rubs is different, realizes the friction limit of small piston (14) in attached drawing 1 using snap ring (25) and spring (26)
Bit function realizes friction limit function using small sealing ring (23) in attached drawing 2.
The mode that parking braking function is realized is different,, can when using reverse efficiency as zero worm gear mechanism in attached drawing 1
Directly worm gear mechanism to be utilized to realize parking braking function, also can use lockable mechanism, i.e., the electromagnetic brake,
Electric-controlled mechanical brake apparatus etc. realizes parking braking function；In attached drawing 2, illustrates and discharged when being powered using electromagnetic brake (12)
Motor shaft (11), locking motor shaft (11) realizes the parking braking mode under motor (10) power blackout situation when power-off, also illustrates
Using the parking braking mode of electric-controlled mechanical brake apparatus, when electromagnetic coil (20) is powered, lock pin (22) by electromagnetic force,
Compression retracteding position spring (21) makes lock pin (22) be not in contact with each other with locking wheel (9), and the braking or release to brake be not any
It influences；When needing parking braking, motor (10) drives friction plate (15) to compress brake disc (16), reaches parking braking requirement,
Then electromagnetic coil (20) powers off, and lock pin (22) is inserted into the tooth of locking wheel (9) under the elastic force effect of return spring (21),
Parking braking effect is kept, the parking braking function under motor (10) power blackout situation can be realized.
The connection type of connecting rod is different, connecting rod (6) and swingle (2)/small piston (14)/braking clamp body in attached drawing 1
(1) connection type between is hinge connection, and the job requirement of system is met by hinge movement.Connect in the embodiment of attached drawing 2
Connection type between extension bar (6) and swingle (2) is that hinge is connect, and the connection type between small piston (14) is that elasticity connects
It connects, during braking operation and releases in braking process, the opposite fortune between each component is met by the flexible deformation of junction
It is dynamic to require.
Structure is different from movement characteristic, in attached drawing 1, connecting rod (6) connect swingle (2) one end and small piston (14) with
And the other end and braking clamp body (1) of swingle (2), the installation positioning of swingle (2) and motion state and braking clamp body (1)
Be it is relatively independent, be independent of each other；In attached drawing 2, connecting rod (6) only connects one end and the small piston (14) of swingle (2), rotation
Bar (2) is fixedly mounted on mandrel (5), is supported on braking clamp body (1) by mandrel (5), in the course of work, swingle (2)
In addition to the movement around own axes, also moved together with braking clamp body (1).
Location feature is different, and the location feature of the wedge block (8) in attached drawing 1 uses T-shape slot, the wedge block in attached drawing 2
(8) location feature uses dovetail groove.
Wedge-shaped regulating mechanism is different, and wedge-shaped regulating mechanism uses two wedge blocks (8) in attached drawing 1, is symmetrically mounted on connection
In bar (6), actuates spring (27) and be mounted between wedge block (8)；Wedge-shaped regulating mechanism uses a wedge block (8) in attached drawing 2,
It actuates spring (27) one end to be connected with the small end of wedge block (8), the other end is fixed on connecting rod (6).In addition, wedge block (8)
Shape it is also different.
As shown in Fig. 2, there is brake disc (16) in the jaw of braking clamp body (1), there are friction plate in the two sides of brake disc (16)
(15), one is mounted on braking clamp body (1), and one is mounted on big piston (4), and big piston (4) is mounted in by frustum snap ring (17)
On braking clamp body (1), frustum snap ring (17) pushes the side far from brake disc (16), oblique spring (18) installation to by oblique spring (18)
On braking clamp body (1).There is biggish frictional force between frustum snap ring (17) and the contact surface of big piston (4), when big piston (4)
When displacement is in the regime of elastic deformation of oblique spring (18), without opposite fortune between frustum snap ring (17) and the contact surface of big piston (4)
It is dynamic.The other end of big piston (4) has inclined-plane, cooperates with equally having bevelled small piston (14), small piston (14) passes through small close
Seal (23) is mounted on braking clamp body (1), and the other side of small piston (14) has swingle (2), and connecting rod (6) connects swingle
(2) one end and small piston (14), swingle (2) are fixedly mounted on mandrel (5), and mandrel (5) is supported on braking clamp body (1)
On, it can only be fixedly connected around own axis, mandrel (5) with driven gear (19), driven gear (19) and driving gear
(24) it engages, driving gear (24) is fixedly mounted on motor shaft (11).Equipped with wedge-shaped regulating mechanism, wedge shape in connecting rod (6)
It block (8) and actuates spring (27), connecting rod (6) is divided into two sections by wedge block (8), the left side section and right side section of wedge block (8), wedge
The two sides of shape block (8) are combined respectively with left side section and right side section with location feature-dovetail groove, make the left side section of connecting rod (6) with
Right side section is reliably linked together by wedge block (8), guarantees the Assembly stability and functional reliability of connecting rod (6).Wedge
Shape block (8) can only be moved along the motivator direction for actuating spring (27).
When braking operation, motor (10) drives driving gear (24) rotation, drives driven gear (19) rotation, i.e. mandrel
(5) it rotates, drives swingle (2) rotation, drive connecting rod (6) that big piston (4)/small piston (14) is pushed to move downward, meanwhile,
Swingle (2), mandrel (5) and braking clamp body (1) move right together, drive corresponding friction plate (15) from two sides with identical
It forces to brake disc (16), the self energizing effort braking effect of high efficient and reliable is realized by the contact surface between big small piston.At this point,
Frustum snap ring (17) and big piston (4) move together, and compress oblique spring (18), and flexible deformation occurs for oblique spring (18), store bullet
Property potential energy, without relative motion between frustum snap ring (17) and the contact surface of big piston (4), meanwhile, small sealing ring (23) occur elasticity
Deformation stores elastic potential energy, also without relative motion between small sealing ring (23) and the contact surface of small piston (14).Release braking operation
When, motor (10) drives driven gear (19) to rotate backward, and swingle (2) and connecting rod (6) also counter motion make oblique spring
(18) it is transported relatively with the elastic potential energy release of small sealing ring (23) storage, big piston (4)/small piston (14) and braking clamp body (1)
Dynamic, all elements restore initial position.
When friction plate (15) are worn, after thickness is thinning, when braking operation, motor (10) drives swingle by gear mechanism
(2) it rotates, pushes big piston (4)/small piston (14) and braking clamp body (1) relative motion, oblique spring (18) and small sealing ring
(23) when elastic deformation amount reaches maximum, since friction plate (15) are worn, braking effect is bad, the rotation of motor (10) driving at this time
Bull stick (2) continues to rotate, and oblique spring (18) and small sealing ring (23) keep maximum flexibility deflection, and big piston (4) overcome with
Frictional force between frustum snap ring (17), small piston (14) overcomes the frictional force between small sealing ring (23), with new contact
Face matches.When releasing braking, motor (10) drives gear mechanism reversion, drives swingle (2) reversion, oblique spring (18) and small
The elastic potential energy of sealing ring (23) discharges, and makes big piston (4)/small piston (14) and braking clamp body (1) relative motion, small at this time close
Seal (23) and small piston (14) are cooperated with new contact surface to be positioned, and the spring (27) that actuates in wedge-shaped regulating mechanism makes wedge block
(8) mobile to small end, the length of connecting rod (6) increases, to compensate change in size caused by friction plate (15) abrasion, return displacement
Amount is still the maximum flexibility deflection of small sealing ring (23), thus maintain brake clearance with abrasion before it is identical, realize system
The adjust automatically in dynamic gap.
It has been described in detail, has been not repeated herein before the implementation of parking braking function.In this embodiment, electric-controlled mechanical system
Dynamic device, which can also act directly on, can be obtained similar parking braking effect on driving gear (4) or on driven gear (19)
Fruit.
In the embodiment of attached drawing 1 and attached drawing 2, it can also work, take using only the elastic positioning device on big piston (4)
The friction limiting device to disappear on small piston (14).
Attached drawing 3 is a kind of schematic diagram of location feature.Location feature in attached drawing 1 is T-shape slot, the positioning in attached drawing 2
Feature is dovetail groove, and location feature is all on wedge block (8) and the faying face of connecting rod (6).Location feature in attached drawing 3 is
Locating slide sleeve (28) is coated on the outer surface of connecting rod (6), and the left side section and right side section that connection is separated by wedge block (8) are kept
The integral rigidity of connecting rod (6), meanwhile, the left side section and right side section of connecting rod (6) can be along axis in locating slide sleeve (28)
Direction sliding, meets the job requirement of system, guarantees the Assembly stability and functional reliability of connecting rod (6).
Transmission mechanism can also use chain conveyer, V belt translation, dead axle in addition to using worm gear mechanism, planetary gear mechanism
The combination of other kinds of drive such as gear drive, lever drive, drag-line transmission or the above-mentioned kind of drive, elastic positioning device/rub
Similar function, locking can also be achieved using other structures in addition to using sealing ring, spring/snap ring by wiping limiting device
Lock pin can also be acted on the dedicated latch ratchet on other gears or with gear one, or pacified on motor shaft by mechanism
The dress modes such as ratchet and pawl arrangement realize latch functions, and the quantity of wedge block can also be three or more in wedge-shaped regulating mechanism
More, the shape of wedge block can also be there are many variation, and the location feature of wedge block, which removes, uses T-shape slot, dovetail groove, locating slide sleeve
It outside, can also be using other structures forms such as boss, flat keys, with reinforced assembly stability and functional reliability.Obviously, described
Embodiment be only a part of the embodiments of the present invention, instead of all the embodiments, based on the embodiments of the present invention, this
Those of ordinary skill in field other all embodiments obtained under the premise of no progress creative work, belong to
Protection scope of the present invention.
The present invention is exemplarily described above in conjunction with attached drawing, it is clear that the present invention implements not by aforesaid way
Limitation, as long as using the various improvement that the inventive concept and technical scheme of the present invention carry out, or not improved direct application
It is within the scope of the present invention in other occasions.
Claims (10)
1. a kind of self energizing effort brake-by-wire device includes motor, transmission mechanism, wedge-shaped regulating mechanism, swingle, connecting rod, elasticity
Positioning device, big piston, small piston, braking clamp body, brake disc, friction plate；It is characterized by: the friction plate has two panels,
The brake disc two sides are arranged symmetrically in, one is mounted on the big piston, and one is mounted on the braking clamp body
On；The big piston is mounted in the mounting hole on the braking clamp body via the elastic positioning device；Described
Elastic positioning device a part is fixedly mounted on the braking clamp body, and another part has biggish with the big piston space
Frictional force, when having relative displacement between the big piston and the braking clamp body, due to frictional force effect make it is described
Elastic potential energy is generated in elastic positioning device；The power input element of the motor connection transmission mechanism；Described
The power output element connection of the transmission mechanism swingle, the swingle and the small piston/braking clamp body it
Between connected using the connecting rod；The wedge-shaped regulating mechanism is mounted in the connecting rod, including wedge block and rush
Dynamic element can make the connection pole length change when wedge block moves under actuation mean effect；Described is small
Piston is mounted on the braking clamp body, and one end is connect with the connecting rod, and the other end includes with certain slope
Curved-surface structure；Big piston one end installation friction plate, the curved-surface structure of the other end setting and the small piston
Corresponding curved-surface structure；The curved end of the big piston and the cooperation of the curved end of the small piston constitute contact surface.
2. a kind of self energizing effort brake-by-wire device according to claim 1, it is characterised in that: the big piston and described
There is gap between mounting hole on braking clamp body, this gap size is greater than in braking operation from friction plate and brake disc to production
Feedback of the deflection on big piston and small piston contact surface when raw maximum brake efficiency, be less than friction plate and brake disc it
Between feedback of the free clearance on big piston and small piston contact surface.
3. a kind of self energizing effort brake-by-wire device according to claim 1, it is characterised in that: the wedge block will be described
Connecting rod is divided into left side section and right side section, and there are location feature in the wedge block and the junction of the connecting rod, makes described
Connecting rod left side section and right side section reliably linked together by the wedge block, the left side section is relative to institute
The right side section stated can only move in the axial direction, the relative motion in other directions can not occur, the wedge block is described
It can only be moved along the motivator direction of the actuation mean in connecting rod, cannot achieve the movement or rotation in other directions.
4. a kind of self energizing effort brake-by-wire device according to claim 1, it is characterised in that: the connecting rod and described
Connection between swingle/small piston/braking clamp body can pass through the connecting rod and the swingle/small piston/system
Change in location when relative motion between moving caliper meets brake operation between component, can also by the connecting rod with
The position when flexible deformation of junction meets brake operation between the swingle/small piston/braking clamp body between component
Variation.
5. a kind of self energizing effort brake-by-wire device according to claim 1, it is characterised in that: when nothing in the transmission mechanism
When the transmission link that reverse efficiency is zero, the parking braking under the motor power blackout situation is realized using lockable mechanism, it is described
Lockable mechanism uses electromagnetic brake or electric-controlled mechanical brake apparatus, can disconnect when being powered, fixed conveyor link when power-off
In actuated element, keep the size of pressure between the friction plate and the brake disc, realize parking braking function；Work as institute
When being provided with the transmission link that reverse efficiency is zero in the transmission mechanism stated, it can use the lockable mechanism and realize parking system
Dynamic, also can use reverse efficiency is zero, power and movement can not back transfer, realize the parking under the motor power blackout situation
Braking.
6. a kind of self energizing effort brake-by-wire device according to claim 1, it is characterised in that: further include the swingle branch
It holds on the braking clamp body, the connecting rod is only set between the small piston and the swingle；Or
The swingle is supported on the small piston, only between the braking clamp body and the swingle described in setting
Connecting rod.
7. a kind of self energizing effort brake-by-wire device according to claim 1, it is characterised in that: further include in the big piston
Roller mechanism is used with the position that the small piston curved surface cooperates.
8. a kind of self energizing effort brake-by-wire device according to claim 1, it is characterised in that: further include in the small piston
Setting friction limiting device, described friction limiting device a part are fixedly mounted on described between the braking clamp body
On braking clamp body, there is biggish frictional force between another part and the small piston, when the small piston and the braking
When having relative displacement between caliper, since frictional force effect makes to generate elastic potential energy in the friction limiting device；When small work
When plug and big piston move together, the axial elastic force of big piston elastic positioning device is less than the axial direction of small piston friction limiting device
Elastic force.
9. a kind of self energizing effort brake-by-wire device according to claim 1, it is characterised in that: the big piston and described
Contact surface between small piston can be the group of the curved surfaces such as inclined-plane, arc surface, hyperbola face, parabola face or above-mentioned curved surface
It closes.
10. a kind of electric mechanical brake-by-wire device according to claim 1, it is characterised in that: the wedge block installation
Can be self-locking in the connecting rod, i.e., along the pitman shaft to pressing force can not make the wedge block relative to
The connecting rod is mobile.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910710210.2A CN110486394B (en) | 2019-07-27 | 2019-07-27 | Self-energizing wire control actuator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910710210.2A CN110486394B (en) | 2019-07-27 | 2019-07-27 | Self-energizing wire control actuator |
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| CN110486394A true CN110486394A (en) | 2019-11-22 |
| CN110486394B CN110486394B (en) | 2021-01-15 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113323972A (en) * | 2021-06-03 | 2021-08-31 | 哈尔滨工程大学 | Braking device for large-diameter gear equipment |
| CN114382802A (en) * | 2022-03-09 | 2022-04-22 | 浙江师范大学 | Wire control actuator |
| CN114396439A (en) * | 2022-03-09 | 2022-04-26 | 浙江师范大学 | Wire control actuator |
| CN114483822A (en) * | 2022-03-09 | 2022-05-13 | 浙江师范大学 | Wire control actuator |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996684A (en) * | 2011-09-13 | 2013-03-27 | 陈坤 | High-reinforcement disk brake |
| CN103343788A (en) * | 2013-07-16 | 2013-10-09 | 吉林大学 | Wedge-shaped automobile brake device based on proportional electromagnet driving |
| DE102014202189A1 (en) * | 2014-02-06 | 2015-08-06 | Robert Bosch Gmbh | Brake device and method for operating a braking device for an automatic parking brake |
| CN205689645U (en) * | 2016-04-07 | 2016-11-16 | 金华职业技术学院 | A kind of dual-wedge formula automobile electromechanical brake |
| CN107035790A (en) * | 2016-12-19 | 2017-08-11 | 金华职业技术学院 | A kind of self-boosting type automobile electromechanical brake |
| CN108591306A (en) * | 2017-12-29 | 2018-09-28 | 浙江师范大学 | A kind of electric mechanical brake-by-wire device |
-
2019
- 2019-07-27 CN CN201910710210.2A patent/CN110486394B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996684A (en) * | 2011-09-13 | 2013-03-27 | 陈坤 | High-reinforcement disk brake |
| CN103343788A (en) * | 2013-07-16 | 2013-10-09 | 吉林大学 | Wedge-shaped automobile brake device based on proportional electromagnet driving |
| DE102014202189A1 (en) * | 2014-02-06 | 2015-08-06 | Robert Bosch Gmbh | Brake device and method for operating a braking device for an automatic parking brake |
| CN205689645U (en) * | 2016-04-07 | 2016-11-16 | 金华职业技术学院 | A kind of dual-wedge formula automobile electromechanical brake |
| CN107035790A (en) * | 2016-12-19 | 2017-08-11 | 金华职业技术学院 | A kind of self-boosting type automobile electromechanical brake |
| CN108591306A (en) * | 2017-12-29 | 2018-09-28 | 浙江师范大学 | A kind of electric mechanical brake-by-wire device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113323972A (en) * | 2021-06-03 | 2021-08-31 | 哈尔滨工程大学 | Braking device for large-diameter gear equipment |
| CN114382802A (en) * | 2022-03-09 | 2022-04-22 | 浙江师范大学 | Wire control actuator |
| CN114396439A (en) * | 2022-03-09 | 2022-04-26 | 浙江师范大学 | Wire control actuator |
| CN114483822A (en) * | 2022-03-09 | 2022-05-13 | 浙江师范大学 | Wire control actuator |
| CN114382802B (en) * | 2022-03-09 | 2023-06-30 | 浙江师范大学 | Linear control actuator |
| CN114396439B (en) * | 2022-03-09 | 2023-06-30 | 浙江师范大学 | Linear control actuator |
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