CN106050995A - Power reversing transmission automobile brake power execution assembly - Google Patents
Power reversing transmission automobile brake power execution assembly Download PDFInfo
- Publication number
- CN106050995A CN106050995A CN201610587166.7A CN201610587166A CN106050995A CN 106050995 A CN106050995 A CN 106050995A CN 201610587166 A CN201610587166 A CN 201610587166A CN 106050995 A CN106050995 A CN 106050995A
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- China
- Prior art keywords
- gear
- worm
- commutation
- power
- shift fork
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- 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
- F16D2121/00—Type of actuator operation force
- F16D2121/14—Mechanical
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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
- F16D2125/00—Components of actuators
- F16D2125/18—Mechanical mechanisms
- F16D2125/44—Mechanical mechanisms transmitting rotation
- F16D2125/46—Rotating members in mutual engagement
- F16D2125/52—Rotating members in mutual engagement with non-parallel stationary axes, e.g. worm or bevel gears
Abstract
The invention discloses a power reversing transmission automobile brake power execution assembly which comprises a motor, a first-stage input worm gear, a first-stage transmission mechanism, a shifting fork, an electromagnetic control mechanism, a two-stage transmission mechanism and an output worm wheel; a motor output shaft is coaxially and fixedly connected with the first-stage input worm gear, the first-stage input worm gear is connected with the first-stage transmission mechanism, the first-stage transmission mechanism is connected with the electromagnetic control mechanism by the shifting fork, the first-stage transmission mechanism outputs power through the two-stage transmission mechanism and the output worm wheel. The new transmission mechanism is adopted, the way of the traditional brake power execution assembly that the output direction of torque is adjusted by the positive and negative rotation of the motor is changed, the service life of the power execution assembly is prolonged, and the reaction speed is quickened.
Description
Technical field
The present invention relates to a kind of automobile brake powered actuation mechanism, specifically say the automobile brake of a kind of power commutation transmission
Power performs assembly, belongs to electric automobile servo brake field.
Background technology
Along with developing rapidly of electric automobile, various forms of modes of braking get more and more, traditional hydraulic machinery driving
Braking and stay-supported machinery parking, develop into electric mechanical parking, then the development to electronics service brake, and automobile brake mode is more
Coming the most, convenient degree is more and more higher, it also avoid the environmental problem caused with brake fluid simultaneously.So electric mechanical parking and
Electric mechanical service brake is a developing direction, and electronic parking also has begun to popularize.In electric mechanical parking to electronics
Machinery service brake aspect, power resources usually from motor.Step up owing to Motor Vehicle Braking Procedure is divided into and unclamps two processes, electricity
Machine needs frequent positive and negative rotation, causes motor to be greatly reduced service life, has directly influenced the safety of brakes with steady
Qualitative.
The powered actuation mechanism of the electric mechanical parking that market today exists mainly has: synchronous pulley coordinates epicyclic gearbox
Mode and Worm Wheel System formula.The direction of its output torque is determined by motor output torque direction.If causing motor
Being to work as powered actuation mechanism in service braking operation, the frequent rotating of motor can be substantially reduced the braking of its aging effects
Safety, and the speed of response is not enough.So current automobile brake powered actuation mechanism is served only for automobile parking aspect mostly.
Summary of the invention
In order to solve problem present in background technology, the purpose of the present invention is to propose to the automobile of a kind of power commutation transmission
Brake power perform assembly, may be implemented in motor output torque direction single in the case of realize output torque commutation, from
And independently control braking and the release of conventional brake.
The present invention uses the worm-and-wheel gear with auto-lock function, and independent brake power actuating mechanism controls can
Expansive approach in terms of vehicle steadily braking control system, ramp assist the even aspect such as intelligent driving.
The present invention includes that the one-level that the one-level input gear on worm that motor coordinates with motor engages with gear on worm passes
Motivation structure, the plectrum engaged with the meshing gear that commutates in primary transmission mechanism, the Electromagnetic Control mechanism engaged with plectrum and one-level
Secondary drive mechanism that on gear pin, two bevel gears are the most at a fully engaged and the output at a fully engaged with secondary drive mechanism
Worm gear.
Specifically, technical scheme is as follows:
The present invention includes that motor, one-level input gear on worm, primary transmission mechanism, shift fork, Electromagnetic Control mechanism, two grades of biographies
Motivation structure and output worm gear；Motor output shaft is fixedly and coaxially connected with one-level input gear on worm, and one-level input gear on worm is even
Meeting primary transmission mechanism, primary transmission mechanism is connected with Electromagnetic Control mechanism through shift fork, and primary transmission mechanism is through secondary transmission machine
Structure and output worm gear.
Described motor output shaft is provided with annular knurl, and input gear on worm is enclosed within motor output shaft with interference, and passes through
Annular knurl and input gear on worm interference fit.
Described one-level input gear on worm includes being positioned at the worm spiral tooth of outside and being positioned at the axis hole at center, input
The axis hole of gear on worm and the annular knurl interference fit of motor.
Described primary transmission mechanism includes axis body, worm-gear toothing, left synchromesh gear, two one-level bevel gears, right synchronizations
Gear and commutation meshing gear, left spline and right spline coaxial fixed cover respectively on the two ends, left and right of axis body, worm-gear toothing wheel case
On left spline, worm-gear toothing and axis body coaxial rotating, worm-gear toothing is made to be connected engagement with described one-level input gear on worm；Change
Be enclosed within right spline to meshing gear, make commutation meshing gear with axis body synchronous axial system, in the middle part of commutation meshing gear through shift fork with
Electromagnetic Control mechanism connects, and controls commutation meshing gear by Electromagnetic Control mechanism and moves axially along axis body；Right spline both sides
It is cased with on axis body outside the circumference left synchromesh gear of moving rotary and right synchromesh gear, left synchromesh gear and right synchromesh gear all passing through
Key is socketed with one-level bevel gear interference and engages, the cone flank of tooth of two one-level bevel gears all towards right spline and be symmetrically installed,
Two one-level bevel gears are connected with secondary drive mechanism, and commutation meshing gear rotarily drives the synchromesh gear of wherein side and is rotated into
And it is delivered to secondary drive mechanism by one-level bevel gear.
Described left synchromesh gear and right synchromesh gear respectively and are matched in clearance between axis body, around axis body optical axis portion certainly
By rotating.
Described commutation meshing gear sidewall week Middle face is provided with cannelure, and cannelure is connected with one end of shift fork, commutation
Meshing gear axially has through hole, and through hole hole wall is provided with spline, spline and right spline gaps and coordinates so that commutation engaging tooth
Wheel can be in the smooth and easy movement of right spline segment of axis body；The two ends end face of commutation meshing gear is provided with for same with left synchromesh gear and the right side
The chaste tree gear of step gear engagement.
Described left synchromesh gear and right synchronous gear structure are essentially identical, pacify with right spline place AnchorPoint centrosymmetry
Dress, right synchromesh gear axially has hole endoporus, and big end end face is machined with for coordinating, with commutation meshing gear, the ratchet installed, little
Being machined with key on the outer peripheral face of end, outer peripheral face is by key and described one-level bevel gear interference fit.
Described one-level bevel gear center has through hole, and the hole wall of through hole is machined with keyway, described left synchromesh gear or
The small end of the right synchromesh gear of person is enclosed within the outer peripheral face of small end, and key is embedded in keyway.
Described Electromagnetic Control mechanism includes dynamic ferrum, coil, guide pin bushing, determines ferrum and back-moving spring, determines ferropexy and is arranged on and leads
In set, determining ferrum end face and be connected with dynamic ferrum through back-moving spring, guide pin bushing is outside around there being coil, and coil is fixed with housing, a dynamic ferrum part
Being enclosed within guide pin bushing and move axially along guide pin bushing, dynamic ferrum stretches out the side face of guide pin bushing part and is provided with for recessed with the annular of shift fork fit
Groove.
When Electromagnetic Control mechanism no power state, dynamic ferrum stretches out naturally due to back-moving spring, shift fork drive commutation to nibble
Closing gear to engage with the synchronous cone gear of side, when controlling organization energising work, move ferrum and determine ferrum adhesive, dynamic ferrum moves to right, through dialling
Fork drives commutation meshing gear to engage with the synchronous cone gear on right side.
Described shift fork is respectively arranged at two ends with little shift fork mouth and big shift fork mouth, and shift fork requires by higher hardness and wearability
Template material make, little shift fork mouth and big shift fork mouth are half mounting hole, and big shift fork muzzle is embedded in described commutation meshing gear
Cannelure at；Little shift fork muzzle is embedded in the dynamic iron hoop connected in star of described Electromagnetic Control mechanism.Shift fork requires by higher hard
The template material of degree and wearability is made.
Described secondary drive mechanism includes worm shaft and two grades of bevel gears, and two grades of bevel gears are enclosed within worm shaft and pass through
Key interference fit, worm shaft one end is machined with key, and the keyway of key and two grades of bevel gear centre bores coordinates, and is provided with use in the middle part of worm shaft
In the worm spiral tooth that output worm gear connects.
The gear teeth of described output worm gear and the worm spiral tooth good engagement of secondary drive mechanism so that output worm gear is only
Can the smooth and easy rotation around axle center, output worm gear center to two ends the axially extending boss that is provided with, boss is provided with central through hole, central through hole
It is machined with spline.
The invention has the beneficial effects as follows:
The present invention has abandoned traditional braking power and has performed assembly dependence motor positive and inverse dynamic regulation torque outbound course, promotes
Power performs life-span and the reaction rate of assembly, and the exploitation for the most electronic clamp anti-lock braking system provides a kind of new knot
Structure.
The output worm gear of the present invention has auto-lock function, in the cold operating mode of motor with the worm gear pair of secondary drive mechanism
The brake force of brake can be retained down.
One changement of the primary transmission mechanism upper set of the present invention, can when motor constant output torque, soon
The torque steer of speed control output end, is greatly improved the service life of motor, it is ensured that brake power actuator reliable
Property, perform as service brake actuating unit for brake power actuator and realize automobile anti-lock braking function and provide possibility
Property.
The present invention can be used for the service brake actuating unit of new-energy automobile, can realize energy regenerating at braking procedure.?
In new-energy automobile braking procedure, when when energy regenerating, generation braking moment disclosure satisfy that brake request, this brake power is held
Row mechanism is not involved in work, gets involved braking when brake force deficiency again and provides brake force.
Owing to each brake power executor is separate, can control each driving wheel is independent, can be as vehicle body
Stabilisation systems and the actuator unit work of other advanced actively braking functions.
Accompanying drawing explanation
Fig. 1 is the front elevational schematic that the overall structure of the present invention comprises portion of external housing related constraint feature；
Fig. 2 is the schematic top plan view that Fig. 1 of the present invention comprises portion of external housing related constraint feature；
Fig. 3 is motor shaft side schematic diagram of the present invention；
Fig. 4 is worm tooth wheel shaft side of the present invention schematic diagram；
Fig. 5 is the structural representation of primary transmission mechanism of the present invention；
Fig. 6 is that the present invention commutates the structural representation of meshing gear；
Fig. 7 is one-level bevel gear of the present invention and the structural representation of synchromesh gear；
Fig. 8 is shift fork axle side of the present invention schematic diagram；
Fig. 9 is Electromagnetic Control mechanism of the present invention structural representation；
Figure 10 is secondary drive mechanism assembly of the present invention and part schematic diagram；
Figure 11 is the axle side schematic diagram that the present invention exports worm gear；
Figure 12 is conventional sense lower gear of the present invention engagement situation and the front view of power transmission；
Figure 13 is conventional sense lower gear of the present invention engagement situation and the top view of power transmission；
Figure 14 is duty lower gear of the present invention engagement situation and the front view of power transmission；
Figure 15 is duty lower gear of the present invention engagement situation and the top view of power transmission.
In figure: motor 1, annular knurl 11, electrode pin 12, fixing groove 13；One-level input gear on worm 2, axis hole 21, worm screw spiral shell
Rotation tooth 22；Primary transmission mechanism 3, axis body 31, worm-gear toothing 32, left synchromesh gear 33, one-level bevel gear 34, keyway 341, hole wall
342, right synchromesh gear 35, key 351, ratchet 352, hole endoporus 353, outer peripheral face 354, commutation meshing gear 36, chaste tree tooth 361, ring
Shape groove 362, spline 363, right spline 37, left spline 38；Shift fork 4, little shift fork mouth 41, big shift fork mouth 42；Electromagnetic Control mechanism
5, move ferrum 51, coil 52, guide pin bushing 53, determine ferrum 54, back-moving spring 55；Secondary drive mechanism 6, key 621, worm spiral tooth 622；Defeated
Go out worm gear 7, the gear teeth 71, boss cylindrical 72, spline 73.
Detailed description of the invention
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
As depicted in figs. 1 and 2, the present invention include motor 1, one-level input gear on worm 2, primary transmission mechanism 3, shift fork 4,
Electromagnetic Control mechanism 5, secondary drive mechanism 6 and output worm gear 7；Motor 1 output shaft is coaxially fixed with one-level input gear on worm 2
Connecting, one-level input gear on worm 2 connects primary transmission mechanism 3, and primary transmission mechanism 3 is through shift fork 4 with Electromagnetic Control mechanism 5 even
Connecing, primary transmission mechanism 3, through secondary drive mechanism 6 and output worm gear 7, is exported power by output worm gear 7.
As it is shown on figure 3, motor 1 output shaft is provided with annular knurl 11, input gear on worm 2 is enclosed within motor 1 output shaft with interference
On, and by annular knurl 11 and input gear on worm 2 interference fit, annular knurl 11 carries out interference with the hole 21 inputting worm-gear toothing 2 and joins
Closing, the ability improving worm-gear toothing 2 output torque prevents from skidding.The end face of motor 1 is provided with electrode pin 12, motor 1 end face week
Enclose and be provided with circumferentially fixed for the motor 1 fixing groove 13 to prevent it from rotating so that motor 1 is placed in the external shell of whole mechanism
Internal see the radially, axially play and the movement of other degree of freedom prevented along motor output shaft.Motor 1 is as power intake
Being retrained by external shell, motor pin 12 draws external shell, rotates and can drive input gear on worm 2 turns after electrical power
Dynamic.
As shown in Figure 4, one-level input gear on worm 2 includes the worm spiral tooth 22 being positioned at outside and is positioned at the axle at center
Hole 21, the axis hole 21 of input gear on worm 2 and annular knurl 11 interference fit of motor 1.
As shown in Fig. 5～Fig. 7, primary transmission mechanism 3 includes axis body 31, worm-gear toothing 32, left synchromesh gear 33, two
Level bevel gear 34, right synchromesh gear 35 and commutation meshing gear 36, left spline 38 and right spline 37 coaxial fixed cover respectively are at axle
On the two ends, left and right of body 31, worm-gear toothing 32 is enclosed within left spline 38, and worm-gear toothing 32 is watered with left spline 38 by highstrenghtpiston
Injection forming, left spline 38 acts the effect strengthening peripheral force transmission, makes worm-gear toothing 32 and axis body 31 coaxial rotating, worm-gear toothing 32
It is connected engagement with the worm spiral tooth 22 of described one-level input gear on worm 2；Commutation meshing gear 36 is enclosed within right spline 37, changes
Can horizontally slip to meshing gear 36 and independently engage with side synchronous cone gear, make commutation meshing gear 36 with axis body 31
Synchronous axial system.It is connected with Electromagnetic Control mechanism 5 through shift fork 4 in the middle part of commutation meshing gear 36, controls to change by Electromagnetic Control mechanism 5
Move axially along axis body 31 to meshing gear 36.The left synchronous gear of circumference moving rotary it is cased with on the axis body 31 of right spline 37 both sides
Wheel 33 and right synchromesh gear 35, left synchromesh gear 33 and right synchromesh gear 35 are outer is all socketed with one-level bevel gear 34 also mistake by key
Being full of joint so that synchromesh gear and one-level bevel gear 34 rotate coaxially, synchronous cone gear can only be at axis body through external shell constraint
The dash area constraint of upper smooth and easy rotation such as accompanying drawing 1.The cone flank of tooth of two one-level bevel gears 34 is all towards right spline 37 and right
Claim to install, axially by external shell, synchronous cone gear is being carried out axial limiting, to ensure the distance between synchromesh gear.Two
Individual one-level bevel gear 34 is connected with secondary drive mechanism 6, and commutation meshing gear 36 rotarily drives the synchromesh gear rotation of wherein side
Rotate into and be delivered to secondary drive mechanism 6 by one-level bevel gear 34.
Left synchromesh gear 33 and right synchromesh gear 35 respectively and are matched in clearance between axis body 31, around axis body 31 optical axis certainly
By rotating, axial direction is carried out spacing by external shell, but the rotation smoothness of synchronous cone gear to be ensured.So that one-level
Drive mechanism 3 by external shell spacing after can only pivoting and smooth and easy.
As shown in Figure 6, commutation meshing gear 36 monnolithic case is an axle sleeve, commutation meshing gear 36 sidewall week Middle face
Being provided with cannelure 362, cannelure 362 is connected with one end of shift fork 4, and commutation meshing gear 36 axially has through hole, through hole hole wall
It is provided with spline 363, spline 363 and right spline 37 matched in clearance so that commutation meshing gear 36 can be at the right flower of axis body 31
37 sections of smooth and easy movements of key；The two ends end face of commutation meshing gear 36 is provided with for nibbling with left synchromesh gear 33 and right synchromesh gear 35
The chaste tree gear 361 closed, the chaste tree gear 361 at two ends is with the AnchorPoint centrosymmetry at cannelure 362 place, the chaste tree gear of this symmetry
The left and right tooth of 361 requires can be with corresponding left and right synchromesh gear good engagement.
As it is shown in fig. 7, left synchromesh gear 33 is identical with right synchromesh gear 35 structure, with AnchorPoint center, right spline 37 place
Being symmetrically installed, only illustrate right synchromesh gear 35 at this, right synchromesh gear 35 monnolithic case is a step axle sleeve, right same
Step gear 35 axially has hole endoporus 353, and the internal diameter of hole endoporus 353 is slightly larger than the diameter of axis body 31 so that between both are formed
Gap coordinates；Big end end face is machined with for coordinating the ratchet 352 installed, on the outer peripheral face 354 of small end with commutation meshing gear 36
Being machined with key 351, outer peripheral face 354 is by key 351 and the keyway 341 of described one-level bevel gear 34 and hole wall 342 interference fit shape
Become synchronous cone gear.
As it is shown in fig. 7, one-level bevel gear 34 center has through hole, the hole wall 342 of through hole is machined with keyway 341, described
The small end of left synchromesh gear 33 or right synchromesh gear 35 is enclosed within the outer peripheral face 354 of small end, and key 351 is embedded in keyway 341
Make left synchromesh gear 33 or corresponding one-level bevel gear 34 coaxial rotating of right synchromesh gear 35；
As it is shown in figure 9, Electromagnetic Control mechanism 5 includes dynamic ferrum 51, coil 52, guide pin bushing 53, determines ferrum 54 and back-moving spring 55, fixed
Ferrum 54 is fixedly mounted in guide pin bushing 53, determines ferrum 54 end face and is connected with dynamic ferrum 51 through back-moving spring 55, and guide pin bushing 53 is outside around there being coil
52, coil 52 is fixed with housing, and dynamic ferrum 51 part is enclosed within guide pin bushing 53 and moves axially along guide pin bushing 53, it is ensured that dynamic ferrum can be suitable
Smooth slip in guide pin bushing, the side face that dynamic ferrum 51 stretches out guide pin bushing 53 part is provided with for the ring with little shift fork mouth 41 fit of shift fork 4
Connected in star, stretches out the outer end of guide pin bushing at dynamic ferrum at a fully engaged according to synchromesh gear 33 and commutation meshing gear 36 by external shell
Cooperation position carry out axial limiting.
When Electromagnetic Control mechanism 5 is energized, the dynamic ferrum of electronic controller 5 with determine ferrum adhesive, dynamic ferrum moves to right, and drives through shift fork 4
Commutation meshing gear 36 engages with the synchronous cone gear on right side.
As shown in Figure 8, shift fork 4 is respectively arranged at two ends with little shift fork mouth 41 and big shift fork mouth 42, and shift fork 4 requires by higher hard
The template material of degree and wearability is made, and little shift fork mouth 41 and big shift fork mouth 42 are half mounting hole, and big shift fork mouth 42 is embedded in
At the cannelure 362 of described commutation meshing gear 36, the semicircle radius of big shift fork mouth 42 is than the cannelure of commutation meshing gear 36
The radius of 362 is big, and the thickness of shift fork 4 is slightly less than the width of cannelure 362, so that commutation meshing gear 36 rotates smooth and easy；
Little shift fork mouth 41 is embedded in dynamic ferrum 51 annular groove of described Electromagnetic Control mechanism 5, the semicircle radius requirement of little shift fork mouth 41
Bigger than the dynamic iron hoop shape groove radius of Electromagnetic Control mechanism 5, the thickness of shift fork 4 is slightly less than the width of dynamic ferrum cannelure, it is ensured that shift fork
Can be in the dynamic medium and small intermittent motion of ferrum cannelure.
As shown in Figure 10, secondary drive mechanism 6 includes worm shaft 62 and two grades of bevel gears 61, and two grades of bevel gears 61 are enclosed within snail
On bar axle 62 and by key interference fit, two grades of bevel gears 61 are at a fully engaged with one-level bevel gear, and worm shaft 62 one end is machined with
Key 621, key 621 coordinates with the keyway of two grades of bevel gear 61 centre bores, is provided with for exporting worm gear 7 cooperation even in the middle part of worm shaft 62
The worm spiral tooth 622 connect, secondary drive mechanism 6 by external shell carry out spacing after can only pivoting.Secondary drive mechanism
Bevel gear be rigidly connected with secondary drive mechanism axis body, secondary drive mechanism axis body has one section of worm spiral tooth, two grades of biographies
Motivation structure by external shell carry out spacing after can only pivoting.
As shown in figure 11, the gear teeth 71 of output worm gear 7 and secondary transmission machine worm spiral tooth 622 and the wheel exporting worm gear 7
Tooth 71 engages, and the axial plane 72 of output worm gear can only be around output worm gear axis rotation after being retrained by external shell.The worm screw of structure 6
Helical tooth 622 good engagement so that output worm gear 7 can only the smooth and easy rotation around axle center, output worm gear 7 center axially extending to two ends
Being provided with boss, boss cylindrical 72 carries out spacing with external shell, and boss is provided with central through hole, and central through hole is machined with spline
73.This spline 73 can engage with the spiral handspike spindle nose spline in the auger mechanism in the brake piston of brake, when
The push rod that can drive brake during output worm gear wheel rotates thus the braking of control brake or release.
The implementation process of the present invention is as follows:
Shown in accompanying drawing 2,5,9,12, the present invention is in conventional sense.Braking procedure, motor 1 energising output torque, as attached
Direction shown in Figure 12 and Figure 13.Torque is via worm-gear toothing 32 engaged transmission of gear on worm 2 with primary transmission mechanism 3, band
Dynamic primary transmission mechanism 3 rotates.Right spline 38 is had to connect with the keyway of commutation meshing gear 36 on primary transmission mechanism 3 axis body 31
Connect, commutation meshing gear 36 can be driven to rotate so axis body 31 rotates.Left and right synchronous cone gear in primary transmission mechanism 3 with
The combination of the axis body 31 of primary transmission mechanism 3 is revolute pair, so axis body 31 rotates will not drive synchronous cone pinion rotation.
Electromagnetic Control mechanism 5 off-position, now commutation meshing gear 36 is driven through shift fork 4 by dynamic ferrum 5 and engages with left synchronous cone gear.
Torque will be passed to left synchronous cone gear, left synchronous cone gear and secondary drive mechanism 6 by axis body 31 by commutation meshing gear
Bevel gear 62 engagement drive secondary drive mechanism 6 to rotate, torque is transmitted by the helical worm tooth 32 of secondary drive mechanism 6 again
Give the output worm gear 7 being engaged with.Torque finally exports the spiral in the brake piston to brake device via spline 73
Spiral handspike in pushing mechanism.
Shown in accompanying drawing 2,5,9,13, the present invention is in running order.Release process, motor 1 energising output torque, as attached
Direction shown in Figure 14 and Figure 15.Torque drive path such as conventional sense.But owing to Electromagnetic Control mechanism 5 is in "on" position,
Dynamic ferrum with determine ferrum adhesive, the meshing gear 36 that now commutates is driven through shift fork 4 by dynamic ferrum 5 and engages with left and right synchronous cone gear.Torque
The cone of right synchronous cone gear, right synchronous cone gear and secondary drive mechanism 6 will be passed to by commutation meshing gear by axis body 31
Gear 62 engagement drives secondary drive mechanism 6 to rotate, so since, just complete the commutation of torque.Torque is again by two grades of biographies
The helical worm tooth 32 of motivation structure 6 passes to the output worm gear 7 being engaged with.Torque finally exports to brake via spline 73
The spiral handspike in auger mechanism in the brake piston of brake.
As can be seen here, the present invention has abandoned traditional braking power and has performed the dynamic regulation torque output of assembly dependence motor positive and inverse
Direction, improves power and performs life-span and the reaction rate of assembly, have prominent significant technique effect.
Claims (10)
1. the automobile brake power of a power commutation transmission performs assembly, it is characterised in that: include that motor (1), one-level input
Gear on worm (2), primary transmission mechanism (3), shift fork (4), Electromagnetic Control mechanism (5), secondary drive mechanism (6) and output worm gear
(7)；Motor (1) output shaft is fixedly and coaxially connected with one-level input gear on worm (2), and one-level input gear on worm (2) connects one
Level drive mechanism (3), primary transmission mechanism (3) is connected with Electromagnetic Control mechanism (5) through shift fork (4), primary transmission mechanism (3) warp
Secondary drive mechanism (6) and output worm gear (7).
The automobile brake power of a kind of power the most according to claim 1 commutation transmission performs assembly, it is characterised in that: institute
Motor (1) output shaft stated is provided with annular knurl (11), and input gear on worm (2) is enclosed within interference on motor (1) output shaft, and leads to
Cross annular knurl (11) and input gear on worm (2) interference fit.
The automobile brake power of a kind of power the most according to claim 2 commutation transmission performs assembly, it is characterised in that: institute
One-level input gear on worm (2) stated includes being positioned at the worm spiral tooth (22) of outside and is positioned at the axis hole (21) at center, defeated
Enter the axis hole (21) of gear on worm (2) and annular knurl (11) interference fit of motor (1).
The automobile brake power of a kind of power the most according to claim 1 commutation transmission performs assembly, it is characterised in that: institute
The primary transmission mechanism (3) stated includes axis body (31), worm-gear toothing (32), left synchromesh gear (33), two one-level bevel gears
(34), right synchromesh gear (35) and commutation meshing gear (36), left spline (38) and right spline (37) are coaxially processed at axle respectively
On the two ends, left and right of body (31), worm-gear toothing (32) is fixed on left spline (38), makes worm-gear toothing (32) and axis body (31) same
Axle rotates, and worm-gear toothing (32) is connected engagement with described one-level input gear on worm (2)；
Commutation meshing gear (36) is enclosed within right spline (37), makes commutation meshing gear (36) with axis body (31) synchronous axial system, changes
It is connected with Electromagnetic Control mechanism (5) through shift fork (4) to meshing gear (36) middle part, controls commutation by Electromagnetic Control mechanism (5)
Meshing gear (36) moves axially along axis body (31)；A left side for circumference moving rotary it is cased with on the axis body (31) of right spline (37) both sides
Synchromesh gear (33) and right synchromesh gear (35), left synchromesh gear (33) and right synchromesh gear (35) are the most all socketed with one by key
Level bevel gear (34) interference engage, and the cone flank of tooth of two one-level bevel gears (34) is all towards right spline (37) and symmetrical peace
Dress, two one-level bevel gears (34) are connected with secondary drive mechanism (6), and the meshing gear (36) that commutates rotarily drives wherein side
Synchromesh gear rotates and then is delivered to secondary drive mechanism (6) by one-level bevel gear (34).
The automobile brake power of a kind of power the most according to claim 4 commutation transmission performs assembly, it is characterised in that: institute
State left synchromesh gear (33) and right synchromesh gear (35) respectively and is matched in clearance between axis body (31), around axis body (31) optical axis
Part is freely rotatable.
The automobile brake power of a kind of power the most according to claim 4 commutation transmission performs assembly, it is characterised in that: institute
Commutation meshing gear (36) the sidewall week Middle face stated is provided with cannelure (362), and cannelure (362) connects with one end of shift fork (4)
Connecing, commutation meshing gear (36) axially has through hole, and through hole hole wall is provided with spline (363), spline (363) and right spline
(37) matched in clearance so that commutation meshing gear (36) can be in the smooth and easy movement of right spline (37) section of axis body (31)；Commutation engagement
The two ends end face of gear (36) is provided with for ratchet upper with left synchromesh gear (33) and right synchromesh gear (35) mating engagement respectively
Ratchet (361)；
Described left synchromesh gear (33) is identical with right synchromesh gear (35) structure, and ratchet is in opposite direction, with right spline (37) institute
Installing at AnchorPoint centrosymmetry, right synchromesh gear (35) axially has endoporus (353), big end end face be machined with for commutation
Meshing gear (36) coordinates the ratchet (352) installed, and the outer peripheral face (354) of small end is machined with key (351), outer peripheral face (354)
By key (351) and described one-level bevel gear (34) interference fit；
Described one-level bevel gear (34) center has through hole, and the hole wall (342) of through hole is machined with keyway (341), a described left side
The outer peripheral face of synchromesh gear (33) or right synchromesh gear (35) and hole wall (342) interference fit, key (351) is embedded into key simultaneously
In groove (341).
The automobile brake power of a kind of power the most according to claim 1 commutation transmission performs assembly, it is characterised in that: institute
The Electromagnetic Control mechanism (5) stated includes dynamic ferrum (51), coil (52), guide pin bushing (53), determines ferrum (54) and back-moving spring (55), determines ferrum
(54) being fixedly mounted in guide pin bushing (53), determine ferrum (54) end face and be connected with dynamic ferrum (51) through back-moving spring (55), guide pin bushing (53) is outward
Portion is wound with coil (52), and coil (52) is fixed with housing, and dynamic ferrum (51) part is enclosed within guide pin bushing (53) and along guide pin bushing (53) axle
To movement, dynamic ferrum (51) stretches out the side face of guide pin bushing (53) part and is provided with for the annular groove with shift fork (4) fit.
8. perform assembly, its feature according to the automobile brake power of a kind of power commutation transmission described in claim 1,4 or 6
Being: described shift fork (4) is respectively arranged at two ends with little shift fork mouth (41) and big shift fork mouth (42), shift fork (4) requires by high intensity
Making with the template material of wearability, little shift fork mouth (41) and big shift fork mouth (42) are half mounting hole, and big shift fork mouth (42) is overlapped
It is embedded in cannelure (362) place of described commutation meshing gear (36)；Little shift fork mouth (41) is embedded in described Electromagnetic Control mechanism (5)
Dynamic ferrum (51) annular groove in.
The automobile brake power of a kind of power the most according to claim 1 commutation transmission performs assembly, it is characterised in that: institute
The secondary drive mechanism (6) stated includes worm shaft (62) and two grades of bevel gears (61), and two grades of bevel gears (61) are enclosed within worm shaft
(62), on and by key interference fit, worm shaft (62) one end is machined with in key (621), key (621) and two grades of bevel gears (61)
The keyway of central hole coordinates, and worm shaft (62) middle part is provided with for exporting the worm spiral tooth (622) that worm gear (7) is connected.
The automobile brake power of a kind of power the most according to claim 1 commutation transmission performs assembly, it is characterised in that:
The gear teeth (71) of described output worm gear (7) and worm spiral tooth (622) good engagement of secondary drive mechanism (6) so that defeated
Go out worm gear (7) can only the smooth and easy rotation around axle center, output worm gear (7) center to two ends the axially extending boss that is provided with, during boss is provided with
Heart through hole, central through hole is machined with spline (73).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610587166.7A CN106050995A (en) | 2016-07-22 | 2016-07-22 | Power reversing transmission automobile brake power execution assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610587166.7A CN106050995A (en) | 2016-07-22 | 2016-07-22 | Power reversing transmission automobile brake power execution assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106050995A true CN106050995A (en) | 2016-10-26 |
Family
ID=57416876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610587166.7A Pending CN106050995A (en) | 2016-07-22 | 2016-07-22 | Power reversing transmission automobile brake power execution assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106050995A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113991936A (en) * | 2021-10-26 | 2022-01-28 | 中国地质大学（北京） | High-pressure-resistant driver for deep water |
| CN116752940A (en) * | 2023-08-23 | 2023-09-15 | 克拉玛依市圣起钻采设备有限责任公司 | Beam-free mechanical reversing type pumping unit |
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| CN113991936A (en) * | 2021-10-26 | 2022-01-28 | 中国地质大学（北京） | High-pressure-resistant driver for deep water |
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| CN116752940A (en) * | 2023-08-23 | 2023-09-15 | 克拉玛依市圣起钻采设备有限责任公司 | Beam-free mechanical reversing type pumping unit |
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Application publication date: 20161026 |