CN207080529U - A kind of self-locking electro-mechanical brake apparatus - Google Patents
A kind of self-locking electro-mechanical brake apparatus Download PDFInfo
- Publication number
- CN207080529U CN207080529U CN201720982358.8U CN201720982358U CN207080529U CN 207080529 U CN207080529 U CN 207080529U CN 201720982358 U CN201720982358 U CN 201720982358U CN 207080529 U CN207080529 U CN 207080529U
- Authority
- CN
- China
- Prior art keywords
- motor
- casing
- lead screw
- rolling ball
- screw pair
- 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.)
- Expired - Fee Related
Links
Landscapes
- Braking Arrangements (AREA)
Abstract
The utility model provides a kind of self-locking electro-mechanical brake apparatus, is made up of casing, the first motor, planetary gear mechanism, lead screw shaft, the second motor, rolling ball screw pair screw nut, spring, friction plate and brake disc；First motor is arranged on casing, the sun gear of planetary gear mechanism is arranged on motor output shaft, gear ring is fixed in casing, planet carrier is coaxially connected with lead screw shaft, install to form lead screw pair with the second rotor in the middle part of lead screw shaft, the second motor stator is fixedly mounted on box inside, and the other end and the rolling ball screw pair screw nut of lead screw shaft are installed to form ball-screw pair, rolling ball screw pair screw nut passes through casing, and spring is arranged between rolling ball screw pair screw nut and casing；Two friction plates are separately mounted on the dividing plate on the outside of rolling ball screw pair screw nut and casing, and brake disc is arranged between two frictional disks.The utility model can effectively save brake apparatus volume shared in arrangement, and can stablize and realize auto-lock function.
Description
Technical field
The utility model belongs to brake system of car technical field.More specifically, it the utility model is related to a kind of self-locking
Formula electro-mechanical brake apparatus.
Background technology
Traditional brake system of car generally use hydraulic brake system, its shortcoming are to need a number of pipeline and valve
Class component so that whole device is complicated, and quality is big.Because the pipeline of hydraulic brake system is grown, so brake pressure produces
Slowly, braking retardation is also easy to produce, elimination brake clearance is obtained the time elongated, causes security to reduce；If it is intended to obtain faster
Braking response, hydraulic brake system must just use high performance hydraulic pressure valve components, that is, add the cost of brakes in itself.
With the overall high speed development of current automobile industry, people propose higher to the braking ability and cost of automobile
Requirement, electric mechanical braking (EMB) system gradually come into the visual field of people.Due to electric mechanical braking (EMB) system
Subordination is completed by mechanical structure completely in electro-mechanical system, its course of work, is rung so it can obtain good braking
Should, it and can avoid polluting caused by the fluid of hydraulic system pipeline, meet the total demand of current auto industry and new
The industry requirement of energy automobile.
Electric mechanical braking (EMB) service system mainly implements electric current control by electronic control unit to braking motor
System, makes braking motor output torque, by the mechanical transmission mechanism in system, the output torque of braking motor is converted into effect
Brake force on the brake.
Parts itself is more due to its brake apparatus for existing electro-mechanical brake apparatus, and structure optimization is not reasonable,
Cause that the volume of electro-mechanical brake apparatus is larger, and integrated level is relatively low, be unfavorable for requirement of the emerging automobile industry to high integration；
In addition, lack independent self-locking mechanism in current electro-mechanical brake apparatus, it is difficult to which braking when meeting automobile parking will
Ask.
The content of the invention
For defect present in above-mentioned prior art, the utility model provides a kind of self-locking electric mechanical braking dress
Put, can effectively save brake apparatus volume shared in arrangement, and can stablize and realize auto-lock function.With reference to saying
Bright book accompanying drawing, the technical solution of the utility model are as follows：
A kind of self-locking electro-mechanical brake apparatus, by casing, the first motor, planetary gear mechanism, lead screw shaft,
Two motors, rolling ball screw pair screw nut, spring, friction plate and brake disc composition；
First motor 1 is arranged on the outer end of casing, and the sun gear of planetary gear mechanism is arranged on motor output shaft 2
On, gear ring is fixed in casing, and planet carrier 8 is connected with one end coaxial transmission of lead screw shaft 19, the middle part of lead screw shaft 19 and the second motor
Rotor 18 is coaxially connected to form lead screw pair, and the second motor stator 15 is fixedly mounted on box inside, lead screw shaft 19 it is another
End and the coaxially connected formation ball-screw pair of rolling ball screw pair screw nut 20, the rear end of the rolling ball screw pair screw nut 20 passes through case
Body, spring 21 are arranged between head end outer end face and the cabinet wall of rolling ball screw pair screw nut 20；Two friction plates are pacified respectively
On the rear end face of rolling ball screw pair screw nut 20 and on the dividing plate on the outside of casing, brake disc 26 is arranged on two frictional disks
Between；
Under the driving of the first motor 1, power is transferred to lead screw shaft 19, ball screw assembly, spiral shell through planetary gear mechanism
Mother 20 moves out under the drive of lead screw shaft 19 realizes friction catch, when the second motor stator and the second rotor are powered
Afterwards, the second rotor is displaced outwardly along lead screw shaft 19 and acts against the head end outer end of the rolling ball screw pair screw nut 20 in outside
On face and the holding of brake force is realized in self-locking.
Further, the sun gear of the planetary gear mechanism is the gear shaft processed on motor output shaft 2, institute
The gear ring for stating planetary gear mechanism is the circle internal tooth processed on box inside wall, the row of the planetary gear mechanism
Star gear 7 install planet carrier 8 on, and respectively with inner ring and sun gear engaged transmission.
Further, the main body of the planet carrier 8 is sleeve axle construction, the inner surface of the rear end quill of planet carrier 8 with
The outer surface key connection of lead screw shaft 19；The front end of planet carrier 8 is provided with outer, and the outer end face circumferencial direction in front end is evenly distributed with
Three cylinders, the planetary gear 7 is corresponding to be arranged on three cylinders, and in the inner surface of planetary gear 7 and the appearance of cylinder
A bearing shell 6 is respectively mounted between face, cover plate 5 is installed with the anterior end surface of planet carrier 8；The end of motor output shaft 2 and planet
Deep groove ball bearing 9 is installed between on the inside of the quill of frame 8.
Further, second motor by the second motor stator 15, stator winding 16, the second rotor 18 and turns
Sub- yoke 17 is formed, and the second motor stator 15 is fixedly mounted on cabinet wall described in two groups, and stator winding 16 is arranged on two groups
Between second motor stator 15, second rotor 18 and lead screw shaft 19 coordinate installation to form lead screw pair, described turn
Sub- yoke 17 is arranged on the outer surface of the second rotor 18, and magnetic line of force transmission is carried out in magnetic circuit.
Further, the rotor 18 of lead screw shaft 19 and second installation forms trapezoidal lead screw pair.
Further, on the outside of the rear end quill of the planet carrier 8 between cabinet wall along being reversely provided with two circular cones
Roller bearing.
Further, the rolling ball screw pair screw nut 20 is the tubular that head end is provided with outer and rear end back cover, in ball wire
Sliding block is uniformly provided with the outer circumference side of thick stick pair nut 20, chute, sliding block peace are provided with cabinet wall corresponding with sliding block
In chute, under the guide effect of chute, rolling ball screw pair screw nut 20 linearly slides along cabinet wall.
Further, the casing is made up of case lid 3, preceding casing 4, middle housing 11 and rear box 24, and the case lid 3 is pacified
Mounted in whole casing front end, the first motor 1 is fixedly mounted on the case lid 3, the case lid 3, preceding casing 4, middle housing 11
With rear box 24 successively bolt connection, sealing ring 23 is installed in rear box 24 and the rear end junction of rolling ball screw pair screw nut 20.
Compared with prior art, the beneficial effects of the utility model are：
1st, a kind of self-locking electro-mechanical brake apparatus described in the utility model by by brake apparatus in itself machinery zero
Part is integrated in a brake apparatus with latching member, and uses planetary gear mechanism so that the volume of whole device
Smaller, integrated level is higher, and the Highgrade integration is designed to the volume that effectively saving brake apparatus is shared in arrangement,
Convenient arrangement.
2nd, a kind of self-locking electro-mechanical brake apparatus described in the utility model realizes self-locking by lead screw pair,
To adapt to requirement of the current braking strategy to pressurize operating mode, brake apparatus volume base shared in arrangement is effectively being saved
On plinth, auto-lock function can be more stably realized
3rd, a kind of self-locking electro-mechanical brake apparatus described in the utility model is operated in parking braking in brakes
During operating mode, worked, can be realized to brake from lock control by the first motor and the second motor coordination, its parking performance compared with
It is good, security can be effectively improved.
4th, a kind of self-locking electro-mechanical brake apparatus described in the utility model its by motor control, can reach good
Good braking response, it can apply to current orthodox car field and emerging electric automobile field, and it brakes stable
Property is good, and application prospect is relatively broad.
Brief description of the drawings
Fig. 1 is the elevational cross-sectional view of self-locking electro-mechanical brake apparatus described in the utility model；
Fig. 2 is the top view of self-locking electro-mechanical brake apparatus described in the utility model；
Fig. 3 is the A-A sectional views of self-locking electro-mechanical brake apparatus described in the utility model；
Fig. 4 is the B directions view of self-locking electro-mechanical brake apparatus described in the utility model；
Fig. 5 is the structural representation of the planet carrier in self-locking electro-mechanical brake apparatus described in the utility model；
Fig. 6 is that the structure of the rolling ball screw pair screw nut in self-locking electro-mechanical brake apparatus described in the utility model is shown
It is intended to.
In figure：
1. the first motor, 2. motor output shafts, 3. case lids, casing before 4.,
5. cover plate, 6. bearing shells, 7. planetary gears, 8. planet carriers,
9. deep groove ball bearing, 10. first taper roll bearings, 11. middle housings, 12. second taper roll bearings,
13. flat key, 14. bushings, 15. second motor stators, 16. stator winding,
17. rotor rim, 18. second rotors, 19. lead screw shaft, 20. rolling ball screw pair screw nuts,
21. spring, 22. ball screw assembly, balls, 23. sealing rings, 24. rear box,
25. the first friction plate, 26. brake discs, 27. second friction plates.
Embodiment
Further clearly to illustrate the technical solution of the utility model, with reference to Figure of description, tool of the present utility model
Body embodiment is as follows：
As shown in figure 1, the utility model provides a kind of self-locking electro-mechanical brake apparatus, mainly by the first motor 1,
Motor output shaft 2, case lid 3, preceding casing 4, cover plate 5, bearing shell 6, planetary gear 7, planet carrier 8, deep groove ball bearing 9, the first circular cone
Roller bearing 10, middle housing 11, the second taper roll bearing 12, flat key 13, bushing 14, stator core 15, stator winding 16,
Rotor rim 17, the second rotor 18, lead screw shaft 19, rolling ball screw pair screw nut 20, spring 21, ball screw assembly, ball 22,
Sealing ring 23, rear box 24, the first friction plate 25, the friction plate 27 of brake disc 26 and second form.
First motor 1 selects DC Brushless Motor, as shown in figure 4, the rear end ring flange and case lid of the first motor 1
It is assembled together between 3 by four groups of bolt and nut connectors, to ensure that relative position keeps constant at work for the two；Such as figure
Shown in 2, the preceding casing 4 is the sleeve-shaped that rear and front end is annular flange dish, case lid 3 and the loop method of the preceding front end of casing 4
Blue disk is assembled together by four screw connections, to ensure that relative position is kept not case lid 3 at work with preceding casing 4
Become；The middle housing 11 be front side excircle on and rear end face on carry annular flange dish sleeve-like configuration, intermediate box
The fore-end of body 11 is inserted before in the rear end sleeve of casing 4, the annular flange dish of the preceding rear end of casing 4 by six screws with
Ring flange connection on the excircle of middle housing 11, with casing before guarantee 4 and middle housing 11, relative position is kept at work
It is constant.
The centre position of the inner surface of preceding casing 4 is also machined with a circle internal tooth, forms gear ring structure；
The planet carrier 8 is located in preceding casing 4, as shown in figure 5, the main body of the planet carrier 8 is sleeve axle construction, planet
Flat key groove is machined with the inner surface of the rear end quill of frame 8, the front end of planet carrier 8 is provided with outer, the outer end face circumference in front end
Direction is evenly distributed with three cylinders, and the diameter parallel of the axis of cylinder and planet carrier 8, at the outer face center of each cylinder
Be machined with a tapped blind hole, each cylinder it is upper be set with a planetary gear 7, planetary gear 7 inner surface with
A bearing shell 6 is respectively mounted between the outer surface of cylinder, the effect of bearing shell 6 is to reduce the mill between planetary gear 7 and the boss of planet carrier 8
Damage, improves its service life；The front end of the bearing shell 6 is provided with outer, and the outer rear end face of bearing shell 6 acts against planetary gear 7
On front end face, the rear end face of planetary gear 7 is leaned on the front end outer rear end face of planet carrier 8, to realize the axle of planetary gear 7
To positioning；The cover plate 5 is oblate column, is machined with centre bore in the center of cover plate 5, adds in the circumferencial direction of cover plate 5
Work has three uniform through holes, and the center of the through hole corresponds on planet carrier 8 in the tapped blind hole of three cylinders respectively
The heart, the through hole of cover plate 5 are assembled together with the tapped blind hole of the cylindrical center of planet carrier 8 by three screws, with ensure cover plate 5 with
Relative position is kept constant during planet carrier 8 works.
The motor output shaft 2 is three sections of stepped gear axles, is worn after the leading portion of motor output shaft 2 connects the first motor 1
The centre bore of cover plate 5 is crossed, is machined with the gear teeth on the interlude axle of motor output shaft 2, forms gear shaft, after motor output shaft 2
Section is stretched into the front end sleeve of planet carrier 8, and deep groove ball bearing 9, the zanjon are provided between motor output shaft 2 and planet carrier 8
Ball bearing 9 selects the type deep groove ball bearing of model 6002, and deep groove ball bearing 9, which is sleeved on motor output shaft 2, the outside of section, zanjon
The outer circumference surface of ball bearing 9 is in contact with the inner surface of the tube-in-tube structure of planet carrier 8, the inner ring front end of deep groove ball bearing 9 and motor
The shaft shoulder of output shaft 2 is in contact, and the outer ring rear end of deep groove ball bearing 9 is in contact with the inner face of the sleeve of planet carrier 8, deep-groove ball axle
The effect for holding 9 is to ensure rotating freely and playing a supporting role for motor output shaft 2.
As shown in figure 3, the gear ring of the inner surface of preceding casing 4 is nibbled with the outside of three planetary gears 7 installed on planet carrier 8
Close, the inner side of three planetary gears 7 is engaged with the gear shaft of the interlude of motor output shaft 2, makes the gear ring, OK of the preceding inner surface of casing 4
One entire run of composition of the gear shaft (i.e. sun gear) of 8, three planetary gears 7 of carrier and the interlude of motor output shaft 2
Planetary gear mechanism, its effect is that the power that the first motor 1 exports is defeated by the gear shaft of the interlude of motor output shaft 2
Enter, after slow down and increasing and turn round, then externally exported by planet carrier 8.
As shown in figure 1, the lead screw shaft 19 is three sections of ladder lead screw shaft, the diameter of axle of its leading portion optical axis is minimum, lead screw shaft 19
Leading portion optical axis installation planet carrier 8 rear end quill inside, the front end of the shaft shoulder on rear side of the leading portion optical axis of lead screw shaft 19
One bushing 14 is housed, the bushing 14 is a ring-shape accessory, plays shaft shoulder positioning between the rear end face of face and planet carrier 8
Effect；
The quill of the rear end of planet carrier 8 extends the front end of middle housing 11, the planet carrier 8 and middle housing 11 it
Between be equipped with two taper roll bearings, the first taper roll bearing 10 and the second taper roll bearing 12 select model
7006C taper roll bearing, the first taper roll bearing 10 are opposite with the assembly direction of the second taper roll bearing 12.Assembling
When, the inner ring of the first taper roll bearing 10 is in contact installation with the shaft shoulder on front side of the quill of the rear end of planet carrier 8, and the second circular cone rolls
The outer ring of sub- bearing 12 is in contact installation with the outer ring of the first taper roll bearing 10, after the inner ring of the second taper roll bearing 12
Hold the installation that is in contact with the front end of bushing 14.
A flat key groove, keyway size and the rear end of planet carrier 8 are machined with the excircle of the leading portion optical axis of lead screw shaft 19
It is suitable that flat key groove size is machined with the inner surface of quill, passes through flat key between lead screw shaft 19 and the rear end quill of planet carrier 8
13 connections, to realize that planet carrier 8 passes through power transmission of the flat key 13 to lead screw shaft 19；The stage casing lead screw axle of lead screw shaft 19
The diameter of axle it is maximum, the outer surface of lead screw axle is machined with helical form dovetail groove；The back segment ball-screw axle of the lead screw shaft 19
The diameter of axle between the diameter of axle of leading portion optical axis and stage casing lead screw axle, and the outer surface of back segment ball-screw axle is machined with spiral shell
Revolve shape deep-slotted chip breaker.
The described ring flange of the rear end of middle housing 11 is connected with the front end flange disk of rear box 24 by six groups of bolt and nuts
Fitting is assembled together, to ensure that relative position keeps constant to middle housing 11 at work with rear box 24.The rear box
24 middle inner surface circumferencial directions are machined with four rectangle elongated slots, and one is additionally provided with the outside of the casing of the rear end of the rear box 24
For installing the dividing plate of friction plate.
Described stator core 15 is arranged on middle housing 11 and the casing of the junction of rear box 12 with stator winding 16
Inwall, stator winding 16 collectively constitute the stationary part of the second motor between two groups of stator cores 15, by stator around
Group 16 is powered, and the stationary part of the second motor is produced the magnetic field of change, to drive the second rotor 18 to rotate；Described second
Rotor 18 is tubulose, is machined with helical form dovetail groove in the inner surface of the second rotor 18, the second rotor 18 is located at
Inside the stationary part of second motor, and on the stage casing lead screw axle of the lead screw shaft 9, in the second rotor 18
The helical form dovetail groove size on surface matches with the stage casing lead screw axial screw shape dovetail groove size of lead screw shaft 9, is formed and slided
Dynamic leading screw auxiliary structure, ensureing the power of the second rotor 18 can be transferred in lead screw shaft 9, and due to lead screw it is secondary from
Lock function, the axial slip motion of second rotor of the meeting locking of lead screw shaft 9 18, so as to realize that brake apparatus is kept in parking
Brake force.The rotor rim 17 is arranged on the outer surface of the second rotor 18, and the effect of rotor rim 17 is in magnetic circuit
Middle progress magnetic line of force transmission.Second rotor 18 is located inside the stationary part of the second motor, and with the stator of the second motor
Certain interval is maintained between part, to ensure the normal rotation of the second rotor 18.
As shown in fig. 6, described rolling ball screw pair screw nut 20, which is one end, is provided with outer, the other end is provided with the tubular of back cover,
Four rectangular shaped sliders, four rectangular shaped sliders and rear cabinet are uniformly provided with the outer circumference side of rolling ball screw pair screw nut 20
Four rectangle elongated slots of 24 middle inner surface of body are slidably connected, in rear box 24 under the guide effect of rectangle elongated slot, ball wire
Thick stick pair nut 20 grows groove sliding along the rectangle in rear box 24, realizes rolling ball screw pair screw nut 20 in rear box 24
Smooth sliding；
As shown in figure 1, rolling ball screw pair screw nut 20 is sleeved on the back segment ball-screw axle of the lead screw shaft 19, ball wire
The front end outer end face of thick stick pair nut 20 is in contact with the rear end face of the second rotor 18；In the interior table of rolling ball screw pair screw nut 20
Face is machined with helical form deep-slotted chip breaker, the helical form deep-slotted chip breaker on rolling ball screw pair screw nut 20 and the back segment ball-screw of lead screw shaft 19
Helical form deep-slotted chip breaker on axle outer circumference surface matches, and rolling ball screw pair screw nut 20 is assembled together to form spiral with lead screw shaft 19
Raceway, the spiral rolling track is interior to be provided with ball screw assembly, ball 22, the rolling ball screw pair screw nut 20, lead screw shaft 19 and ball wire
Thick stick pair ball 22 forms ball-screw auxiliary structure, to ensure the rotary motion of lead screw shaft 19 being converted to rolling ball screw pair screw nut 20
Rectilinear movement.The back cover end of the rolling ball screw pair screw nut 20 passes through the Backside support wall of rear box 24, in rear box 24
Sealing ring is housed, to ensure the sealing in brake apparatus casing between Backside support wall and rolling ball screw pair screw nut 20；Rolling
Spring 21 is installed between the rear end face of the outer of ballscrew pair nut 20 and the Backside support wall of rear box 24.
As shown in figure 1, the first friction plate 25 is connected on the outer face at back cover end of rolling ball screw pair screw nut 20, second rubs
Pad 27 is connected on the dividing plate in the outside of rear box 24, brake disc 26 between the first friction plate 25 and the second friction plate 27,
When brake apparatus is not started working, between keeping certain between the friction plate 25 of brake disc 26 and first and the second friction plate 27
Gap, to ensure that brake apparatus will not interfere when not working with motor racing.
Self-locking electro-mechanical brake apparatus described in the utility model obtains operation principle and the course of work is as follows：
1. the service brake course of work：
When driver steps on brake pedal in driving conditions, vehicle ECU control units control the first motor 1 to start to rotate forward,
Motor output shaft 2 starts to rotate, due to the tooth on the gear shaft on motor output shaft 2, planetary gear 7, planet carrier 8, preceding casing 4
Circle composition planetary gears, because preceding casing 4 keeps fixing in brake apparatus, therefore the gear ring on preceding casing 4 is also fixed.
Due to the effect of planetary gears, power is inputted by the gear shaft on motor output shaft 2, is slowed down to increase via planetary gear 7 and is turned round,
Exported from planet carrier 8, make planet carrier 8 start to rotate forward, planet carrier 8 drives lead screw shaft 19 to start to rotate forward by flat key 13.
Now, the second motor stator core 15 and stator winding 16 are in off-position, and the second rotor 18 is in silk
Rotated freely on thick stick axle 19 and be not involved in being driven；Lead screw shaft 19 starts to rotate forward, lead screw shaft 19, rolling ball screw pair screw nut 20 and ball
The rotary motion for the ball-screw adjutant lead screw shaft 9 that lead screw pair ball 22 is formed is converted to rolling ball screw pair screw nut 20 backward
(outside) rectilinear movement, rolling ball screw pair screw nut 20 promote the first friction plate 25 to be moved rearwards.Because the second friction plate 27 is connected
Remained stationary on the dividing plate in the outside of rear box 24, the first friction plate 25 overcomes its gap with brake disc 26, promotes
Brake disc 26 is moved back, until brake disc 26 overcomes its gap between the second friction plate 27, now the first friction plate 25 with
Second friction plate 27 is in contact with brake disc 26, by rubbing action, brake disc 26 is started braking deceleration, realizes driving work
Braking procedure under condition.
2. the parking braking course of work：
When driver needs parking braking, vehicle ECU control units control the first motor 1 to start to rotate forward, motor output
Axle 2 starts to rotate, because the gear ring on the gear shaft on motor output shaft 2, planetary gear 7, planet carrier 8, preceding casing 4 forms row
Star gear mechanism, because preceding casing 4 keeps fixing in brake apparatus, therefore the gear ring on preceding casing 4 is also fixed.Due to planet
The effect of gear mechanism, power are inputted by the gear shaft on motor output shaft 2, are slowed down to increase via planetary gear 7 and are turned round, from planet carrier
8 are exported, and make planet carrier 8 start to rotate forward, and planet carrier 8 drives lead screw shaft 19 to start to rotate forward by flat key 13.
Now, the second motor stator core 15 and stator winding 16 are in off-position, and the second rotor 18 is in silk
Rotated freely on thick stick axle 19 and be not involved in being driven；Lead screw shaft 19 starts to rotate forward, lead screw shaft 19, rolling ball screw pair screw nut 20 and ball
The rotary motion for the ball-screw adjutant lead screw shaft 9 that lead screw pair ball 22 is formed is converted to rolling ball screw pair screw nut 20 backward
(outside) rectilinear movement, rolling ball screw pair screw nut 20 promote the first friction plate 25 to be moved rearwards.Because the second friction plate 27 is connected
Remained stationary on the dividing plate in the outside of rear box 24, the first friction plate 25 overcomes its gap with brake disc 26, promotes
Brake disc 26 is moved back, until brake disc 26 overcomes its gap between the second friction plate 27, now the first friction plate 25 with
Second friction plate 27 is in contact with brake disc 26, by rubbing action, brake disc 26 is started braking deceleration, realizes driving work
Braking procedure under condition.
When acting on the brake force in brake disc 26 and reaching parking braking demand, vehicle ECU controls the first motor 1 to be powered
But the holding position that stops operating is constant, and the second motor stator core 15 is powered with stator winding 16, because the second motor is determined
Sub- iron core 15 and stator winding 16 form the second motor stator portion, and the second motor stator portion produces change in the presence of electric current
The magnetic field of change, the magnetic field rotate forward the second rotor 18, due to the second rotor 18 and the composition lead screw of lead screw shaft 9
Pair, the second rotor 18 produce axial displacement backward relative to lead screw shaft 9, until the rear end face of the second rotor 18 withstands rolling
The front end face of ballscrew pair nut 20, now, vehicle ECU control the power-off of the second motor stator portion, the second motor is stopped work
Make, after the second motor is stopped, vehicle ECU controls the power-off of the first motor 1 to be stopped.Now, because the second motor turns
The self-locking action secondary with the lead screw that lead screw shaft 9 forms of son 18, the axial direction of second rotor of the meeting locking of lead screw shaft 9 18 are sliding
Move, brake force holding effect during so as to realize brake apparatus parking, realize insensitivity during parking braking.
Claims (8)
- A kind of 1. self-locking electro-mechanical brake apparatus, it is characterised in that：By casing, the first motor, planetary gear mechanism, lead screw shaft, the second motor, rolling ball screw pair screw nut, spring, friction Piece and brake disc composition；First motor (1) is arranged on the outer end of casing, and the sun gear of planetary gear mechanism is arranged on motor output shaft (2) On, gear ring is fixed in casing, and planet carrier (8) is connected with lead screw shaft (19) one end coaxial transmission, with the in the middle part of lead screw shaft (19) Two rotors (18) are coaxially connected to form lead screw pair, and the second motor stator (15) is fixedly mounted on box inside, leading screw The other end of axle (19) and the coaxially connected formation ball-screw pair of rolling ball screw pair screw nut (20), the rolling ball screw pair screw nut (20) rear end passes through casing, spring (21) be arranged on rolling ball screw pair screw nut (20) head end outer end face and cabinet wall it Between；Two friction plates are separately mounted on the rear end face of rolling ball screw pair screw nut (20) and on the dividing plate on the outside of casing, system Moving plate (26) is arranged between two frictional disks；Under the driving of the first motor (1), power is transferred to lead screw shaft (19), ball screw assembly, spiral shell through planetary gear mechanism Female (20) move out under the drive of lead screw shaft (19) realizes friction catch, when the second motor stator and the second rotor lead to After electricity, the second rotor is displaced outwardly along lead screw shaft (19) and acts against the head end of the rolling ball screw pair screw nut (20) in outside On the end face of outer and the holding of brake force is realized in self-locking.
- A kind of 2. self-locking electro-mechanical brake apparatus as claimed in claim 1, it is characterised in that：The sun gear of the planetary gear mechanism is the gear shaft processed on motor output shaft (2), the planetary gear The gear ring of transmission mechanism is that one processed on box inside wall encloses internal tooth, the planetary gear (7) of the planetary gear mechanism Install on planet carrier (8), and respectively with inner ring and sun gear engaged transmission.
- A kind of 3. self-locking electro-mechanical brake apparatus as claimed in claim 2, it is characterised in that：The main body of the planet carrier (8) is sleeve axle construction, inner surface and the lead screw shaft (19) of planet carrier (8) rear end quill Outer surface key connection；Planet carrier (8) front end is provided with outer, and the outer end face circumferencial direction in front end is evenly distributed with three circles Post, the planetary gear (7) is corresponding to be arranged on three cylinders, and in the inner surface of planetary gear (7) and the outer surface of cylinder Between be respectively mounted a bearing shell (6), be installed with cover plate (5) in planet carrier (8) anterior end surface；Motor output shaft (2) end Deep groove ball bearing (9) is installed between the quill inner side of planet carrier (8).
- A kind of 4. self-locking electro-mechanical brake apparatus as claimed in claim 1, it is characterised in that：Second motor is by the second motor stator (15), stator winding (16), the second rotor (18) and rotor rim (17) form, the second motor stator (15) is fixedly mounted on cabinet wall described in two groups, and stator winding (16) is arranged on two groups Between second motor stator (15), second rotor (18) coordinates installation to form lead screw pair with lead screw shaft (19), The rotor rim (17) is arranged on the outer surface of the second rotor (18), and magnetic line of force transmission is carried out in magnetic circuit.
- A kind of 5. self-locking electro-mechanical brake apparatus as described in claim 1 or 4, it is characterised in that：The lead screw shaft (19) forms trapezoidal lead screw pair with the second rotor (18) installation.
- A kind of 6. self-locking electro-mechanical brake apparatus as claimed in claim 1, it is characterised in that：Along being reversely provided with two taper roll bearings between cabinet wall on the outside of planet carrier (8) rear end quill.
- A kind of 7. self-locking electro-mechanical brake apparatus as claimed in claim 1, it is characterised in that：The rolling ball screw pair screw nut (20) is the tubular that head end is provided with outer and rear end back cover, in rolling ball screw pair screw nut (20) Outer circumference side on be uniformly provided with sliding block, be provided with chute in cabinet wall corresponding with sliding block, sliding block is arranged in chute, Under the guide effect of chute, rolling ball screw pair screw nut (20) linearly slides along cabinet wall.
- A kind of 8. self-locking electro-mechanical brake apparatus as described in claim 1,2,4,6 or 7, it is characterised in that：The casing is made up of case lid (3), preceding casing (4), middle housing (11) and rear box (24), case lid (3) installation In whole casing front end, the first motor (1) is fixedly mounted on the case lid (3), the case lid (3), preceding casing (4), centre Casing (11) and rear box (24) bolt connection successively, pacify in rear box (24) and rolling ball screw pair screw nut (20) rear end junction Equipped with sealing ring (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720982358.8U CN207080529U (en) | 2017-08-08 | 2017-08-08 | A kind of self-locking electro-mechanical brake apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720982358.8U CN207080529U (en) | 2017-08-08 | 2017-08-08 | A kind of self-locking electro-mechanical brake apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207080529U true CN207080529U (en) | 2018-03-09 |
Family
ID=61425174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720982358.8U Expired - Fee Related CN207080529U (en) | 2017-08-08 | 2017-08-08 | A kind of self-locking electro-mechanical brake apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207080529U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109515423A (en) * | 2018-12-05 | 2019-03-26 | 上海六辔机电科技有限公司 | Electromechanical checking cylinder and braking method |
| CN111452824A (en) * | 2020-04-14 | 2020-07-28 | 南京中车浦镇海泰制动设备有限公司 | Electronic mechanical driving mechanism |
| CN113675993A (en) * | 2020-05-13 | 2021-11-19 | 博泽沃尔兹堡汽车零部件欧洲两合公司 | Vehicle, electronic brake booster thereof and motor system |
| CN114110049A (en) * | 2021-12-06 | 2022-03-01 | 上海思源高压开关有限公司 | High-voltage switch mechanism braking device |
-
2017
- 2017-08-08 CN CN201720982358.8U patent/CN207080529U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109515423A (en) * | 2018-12-05 | 2019-03-26 | 上海六辔机电科技有限公司 | Electromechanical checking cylinder and braking method |
| CN109515423B (en) * | 2018-12-05 | 2024-02-02 | 北京天佑新辔高新技术有限公司 | Electromechanical brake cylinder and braking method |
| CN111452824A (en) * | 2020-04-14 | 2020-07-28 | 南京中车浦镇海泰制动设备有限公司 | Electronic mechanical driving mechanism |
| CN113675993A (en) * | 2020-05-13 | 2021-11-19 | 博泽沃尔兹堡汽车零部件欧洲两合公司 | Vehicle, electronic brake booster thereof and motor system |
| CN114110049A (en) * | 2021-12-06 | 2022-03-01 | 上海思源高压开关有限公司 | High-voltage switch mechanism braking device |
| CN114110049B (en) * | 2021-12-06 | 2023-07-25 | 上海思源高压开关有限公司 | Braking device of high-voltage switch mechanism |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107289043A (en) | A kind of self-locking electro-mechanical brake apparatus | |
| CN207080529U (en) | A kind of self-locking electro-mechanical brake apparatus | |
| US11358468B2 (en) | Two-speed transmission system integrated with inner rotor hub motor and electric vehicle using same | |
| CN107444380B (en) | A kind of integrated form line traffic control hydraulic brake system | |
| CN107878664B (en) | Through shaft type miniature hub motor of electric bicycle | |
| CN207166295U (en) | A kind of high reduction-ratio hub motor of high pulling torque | |
| CN103447872A (en) | Self-adapting tapping machine with retractable motor inner shaft | |
| CN212447100U (en) | Double-motor driving device of electric automobile | |
| CN111497596A (en) | Double-motor driving device of electric automobile | |
| CN110385979B (en) | Driving motor assembly for electric vehicle | |
| CN108233607A (en) | A kind of electric motor of automobile driving equipment | |
| CN207191038U (en) | A kind of integrated form line traffic control hydraulic brake system | |
| CN110985619B (en) | Integrated planetary mechanism two-gear transmission | |
| CN107017733B (en) | Miniature hub motor | |
| CN110071597B (en) | Unpowered interruption inner rotor hub motor two-gear speed change system and electric automobile | |
| CN203813597U (en) | Gear motor for elevating appliance of stereo garage | |
| CN216185077U (en) | Electronic mechanical brake device capable of realizing self-locking | |
| CN1674413A (en) | Wheel hub electric machine | |
| CN103986275A (en) | Slowdown motor for stereo garage lifting mechanism | |
| CN201557008U (en) | Electric bicycle hub motor | |
| CN201268382Y (en) | Drive apparatus of electric bicycle | |
| CN108561510B (en) | Dual-speed output planetary gear speed reducing machine | |
| CN203739604U (en) | Gear motor for battery electric vehicle | |
| CN105539134B (en) | Assemble vehicle bridge retarder easy to maintenance | |
| CN216200207U (en) | Single-support one-stage transmission planetary gear reducer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180309 Termination date: 20190808 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |