CN208915147U - A kind of new E PB parking structure - Google Patents
A kind of new E PB parking structure Download PDFInfo
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- CN208915147U CN208915147U CN201821222073.5U CN201821222073U CN208915147U CN 208915147 U CN208915147 U CN 208915147U CN 201821222073 U CN201821222073 U CN 201821222073U CN 208915147 U CN208915147 U CN 208915147U
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- self
- caliper
- alley
- swivel nut
- seat
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Abstract
The utility model discloses a kind of new E PB parking structures.Worm and gear power head is mounted on outside caliper and own sleeve structure and self-adjusting axis are coaxially connected, self-adjusting axis is extend into behind caliper inside with self-regulated seat by connecting with angled alley structure, self-regulated seat and swivel nut are coaxially connected, swivel nut and screw flight suit connection, screw rod is packed in piston inner hole, piston is equipped with interior friction block, and caliper is equipped with external friction block；Fixed frame is fixed on the caliper outside swivel nut, and swivel nut is equipped with return spring, and return spring is connected respectively on the outward flange step and fixed frame of swivel nut；The second hole retaining ring is fixed in piston inner hole, screw rod is equipped with step, and volute spring is sleeved between screw rod and piston, and volute spring both ends are connected to screw rod step and the second hole retaining ring.The utility model pushes piston Forward to realize parking by force-increasing mechanism, carries out clearance self-regulating using self-adjusting mechanism, can reduce the input torque of EPB in equally under the conditions of in slope, shorten the parking response time.
Description
Technical field
The utility model relates to a kind of EPB structures, more particularly, to a kind of new E PB (Electr omechanica
L Parking Brake Caliper, abbreviation EPB, electronic brake pincers) parking structure.
Background technique
Motor integrated form EPB parking brake caliper has been widely used for medium-to-high grade passenger vehicle at present.Traditional passenger car is dynamic
Power drive uses fuel engines, and in starting, power, which is output to wheel from engine, a time difference.With electric car
Universal, the passing time base between motor and wheel is synchronous, and parking pincers release lag occurs not anti-when stepping on dynamoelectric accelerograph when starting to walk
Jiggly problem of answering or start to walk displays.
Conventional EPB is that piston is pushed by screw thread pair, and (piston moves forward 1.2mm need to rotate 1 to screw pitch about 1.2mm or so
Circle), motor power actuator does not have force-increasing mechanism to piston space.Motor only has low speed that could generate large torque, and actuator only has
Improve motor speed using the amplification transmission ratio such as gear pair, V belt translation to shorten and clamp release time, and by screw thread pair from
The stabilization of power when lock feature realizes parking.The shortcomings that this structure be need EPB input large torque, and the parking response time compared with
It is long.
Utility model content
In order to solve the problems, such as background technique, the utility model proposes a kind of new E PB halting mechanisms, can be real
Screw rod and piston clearance self-regulated are realized in now light reinforcement parking, shorter, same compared to the parking response time with traditional EPB brake
Input torque needed for the parking power of sample is smaller.
The technical solution adopted in the utility model is:
The utility model includes worm and gear power head and the piston being mounted on inside caliper, interior friction block, brake disc, outer
Friction block, caliper and clearance self-regulating mechanism, clearance self-regulating mechanism include self-adjusting axis, self-regulated seat, fixed frame, return spring and taper
Spring；Worm and gear power head is mounted on outside caliper, and worm and gear power head output end is tube-in-tube structure, and tube-in-tube structure passes through
Spline is coaxially connected with self-adjusting axis, and self-adjusting axis passes through with self-regulated seat one end with angled alley structure after extending into caliper inside
Connection, the self-regulated seat other end and swivel nut one end are coaxially connected, and the swivel nut other end and the suit connection of screw rod threaded one end, screw rod are another
End is fixedly mounted in piston inner hole, and piston end surface is equipped with interior friction block, and the open mouth tongs portion medial surface of caliper is equipped with external friction block,
Brake disc is between interior friction block and external friction block；Fixed frame is fixed on the pincers of swivel nut outside by the first hole with retaining ring
Body, swivel nut are set with return spring, and return spring one end is connected on the outward flange step that swivel nut one end is equipped with, and return spring is another
One end is connected to fixed frame；The second hole retaining ring is fixed in piston inner hole, the screw rod other end is equipped with step, volute spring suit
Between screw rod and piston, and volute spring both ends are connected to screw rod other end step and the second hole retaining ring.
Described includes the alley that self-adjusting axis end is equipped with and the ball that self-regulated seat end is equipped with angled alley structure
Road and steel ball, self-adjusting axis extend into the end inside caliper equipped with outward flange, open that there are three circumferentially on the end face of outward flange
The axis arc alley of arrangement, self-regulated seat are opened on the end face opposite with self-adjusting axis there are three the seat arc alley circumferentially arranged,
A corresponding seat arc alley face of one axis arc alley arranges to form complete alley, and places in complete alley
One steel ball, the bottom surface gradient of complete alley are 2.5-4.5 degree.
Three axis arc alleys of the self-adjusting axis and three seat arc alleys of self-regulated seat constitute three complete balls
Road, the gradient inclined direction of complete alley is along same along counterclockwise identical.
Angle of circumference shared by the complete alley of described one is 80-110 °.
The self-regulated seat is radially, circumferentially immovably mounted in caliper, i.e. self-regulated seat outer diameter and caliper bore inner diameter
Coincide installation.
Protrusion is equipped with outside the self-regulated seat, the caliper circumferential surface is equipped with axially disposed strip groove, and protrusion is embedded in
It is moved in strip groove and along strip groove, so that self-regulated seat and caliper are radially fixed.
The swivel nut is radially, circumferentially immovably installed on self-regulated seat.
The swivel nut end is equipped with outward flange, and outward flange outer peripheral surface is equipped with groove, on the inner peripheral surface of the self-regulated seat inner hole
Equipped with multiple circumferentially spaced uniformly distributed convex blocks, the outward flange end of swivel nut is mounted in self-regulated seat inner hole and makes convex block and recessed
Slot is mutually embedded in, so that swivel nut and self-regulated seat are radially fixed.
The utility model pushes piston Forward to realize and stays using worm and gear power head as power source by force-increasing mechanism
Vehicle；It is self-locking using the progress of worm screw worm screw power head after parking；When screw rod and piston are there are behind gap, between being carried out using self-adjusting mechanism
Gap self-regulated.
The utility model motor drives scroll bar rotation driving worm gear rotation, transfers torque to the axis in alley pair by key,
On axis three at it is uniformly distributed with the angled alley synchronous rotary that can only at most rotate 120 degree, by steel ball transmitting thrust to ball
Seat in road pair, seat can only carry out axial displacement by position-limit mechanism on caliper, push equally can only axial displacement swivel nut
Lead-screw clamping piston generates clamping force, the final purpose for realizing braking.
The utility model removes pivoted arm, the bracing wire seat of conventional parking integrated form IPB, using worm and gear in normal EPB system
Dynamic pincers are increased in piston assembly using newly-increased self-adjusting axis and self-regulated seat with alley on the basis of rule screw rod swivel nut transmission force
Add clearance self-regulating mechanism, realize the function of motor parking integrated form EPB, there is large transmission ratio, low speed transmitting large torque, self-locking
Feature.
The utility model converts axial movement for radial motion by alley, and using the gradient of alley, piston is to Forward
Dynamic 1.2mm only needs 45 ° or so of rotation, shortens the response time；Using the force-increasing mechanism of alley, compensate for existing for conventional EPB
Clamping force low current is big, clamps the problem of release time length.
The beneficial effects of the utility model are:
1, guarantee the power stability of clamped condition by the self-lock mechanism of worm and gear；
2, by the alley with angle, the angle rotated needed for motor when reducing parking shortens and steps up the time, simultaneously
Realize wedge-type reinforcement；Clamping force is improved in the case of same motor input current compared with conventional EPB；
3, mechanical clearance self-adjusting mechanism is had, the stability in control gap is improved；It is practical in equally under the conditions of in slope
Novel shortening clamping, release time, reduce the input current of EPB, shorten the parking response time.For synthesis, this is practical
The screw rod swivel nut of the novel double thread using specific structure, improves that screw-driven is high-efficient, reduces the abrasion of screw rod swivel nut,
The advantages that not only improving response time, parking efficiency, but also improve service life, reducing oil consumption.
Detailed description of the invention
Fig. 1 is that EPB electronic brake clamps sectional structure chart.
Fig. 2 is the axonometric drawing of self-adjusting axis, self-regulated seat and swivel nut.
Fig. 3 is self-regulated seat and caliper limit method structural schematic diagram.
Fig. 4 is self-regulated seat and swivel nut limit method structural schematic diagram.
Fig. 5 is self-regulated seat and self-regulated seat limit method structural schematic diagram.
Fig. 6 is the angled alley of the utility model band (containing steel ball) structural schematic diagram.
Fig. 7 is the alley structural schematic diagram of the utility model self-regulated seat end face.
Fig. 8 is an alley structural section enlarged drawing in Fig. 7 at B-B.
In figure: 1, worm and gear power head, 2, self-adjusting axis, 3, self-regulated seat, 4, swivel nut, 5, screw rod, 6, piston, 7, inside rubs
Cleaning block, 8, brake disc, 9, outboard friction block, 10, caliper, 11, volute spring, 12, steel ball, the 13, first hole retaining ring, 14, return
Position spring, 15, fixed frame, 16, rectangular seal, the 17, second hole retaining ring, 18, groove, 19, convex block, 20, protrusion, 21, item
Shape slot.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing.
As shown in Figure 1, the utility model includes worm and gear power head 1 and the piston 6 being mounted on inside caliper 10, interior rubs
Cleaning block 7, brake disc 8, external friction block 9, caliper 10 and clearance self-regulating mechanism, clearance self-regulating mechanism include self-adjusting axis 2, self-regulated seat 3,
Fixed frame 15, return spring 14 and volute spring 11.
As shown in Figure 1, worm and gear power head 1 is mounted on outside caliper 10,1 output end of worm and gear power head is sleeve
Structure, tube-in-tube structure is coaxially connected by spline and self-adjusting axis 2, and self-adjusting axis 2 is extend into behind 10 inside of caliper and 3 one end of self-regulated seat
By connecting with angled alley structure, 3 other end of self-regulated seat and 4 one end of swivel nut are coaxially connected, 4 other end of swivel nut and screw rod
The suit connection of 5 threaded one ends, 5 other end of screw rod are fixedly mounted in 6 inner hole of piston, and piston 6 is mounted in caliper 10, and living
It is tightly connected between plug 6 and 10 inner wall of caliper by rectangular seal 16,6 end face of piston is equipped with interior friction block 7, caliper 10
Open mouth tongs portion medial surface is equipped with external friction block 9, and brake disc 8 is between interior friction block 7 and external friction block 9；Fixed frame 15 passes through
First hole retaining ring 13 is fixed on the caliper 10 of 4 outside of swivel nut, and swivel nut 4 is set with return spring 14,14 one end of return spring
It is connected on the outward flange step that 4 one end of swivel nut is equipped with, 14 other end of return spring is connected to fixed frame 15；In 6 inner hole of piston
It is fixed with the second hole retaining ring 17,5 other end of screw rod is equipped with step, and volute spring 11 is sleeved between screw rod 5 and piston 6,
And 11 both ends of volute spring are connected to 5 other end step of screw rod and the second hole retaining ring 17.
It as depicted in figs. 1 and 2, include 3 end of alley and self-regulated seat that 2 end of self-adjusting axis is equipped with angled alley structure
The alley and steel ball 12 that portion is equipped with, self-adjusting axis 2 extend into the end inside caliper 10 equipped with outward flange, on the end face of outward flange
It opens there are three the axis arc alley circumferentially arranged, self-regulated seat 3 opens that there are three circumferentially cloth on the end face opposite with self-adjusting axis 2
The seat arc alley set, a corresponding seat arc alley face of an axis arc alley arrange to form complete alley, and
A steel ball 12, the corresponding seat arc alley of an axis arc alley are placed in complete alley；The bottom surface slope of complete alley
Degree is 3.5 °, i.e., complete alley one end depth to other end depth is in gradual transition, one end depth to other end depth transition
Camber line and be the gradient perpendicular to the angle formed between the plane of 3 axis of self-adjusting axis 2 and self-regulated seat.
As shown in fig. 6, three axis arc alleys of self-adjusting axis 2 and three seat arc alleys of self-regulated seat 3 constitute three
Complete alley, the gradient inclined direction of complete alley is along same along counterclockwise identical, i.e., three complete alley one end depth
It is identical in the direction of gradual transition to other end depth.
In specific implementation, as shown in Figure 7 and Figure 8, there are three arc alley, a complete arcs on self-adjusting axis and self-regulated seat
Angle of circumference shared by shape alley is 90-120 °, and each arc alley gradient is 3.5 °, maximum rotatable 91 ° of ramp.
As shown in figure 3, self-regulated seat 3 is radially, circumferentially immovably mounted in caliper 10, i.e. 3 outer diameter of self-regulated seat and pincers
10 bore inner diameter of body, which coincide, to be installed.3 outside circumferential surface of self-regulated seat be equipped with protrusion 20,10 circumferential surface of caliper be equipped with for protrusion 20
The axially disposed strip groove 21 of cooperation, protrusion 20 are inlaid in strip groove 21 and move along strip groove 21, protrusion 20 and item
The cooperation of shape slot is embedded in so that 3 location and installation of self-regulated seat is in caliper 10, and self-regulated seat 3 and caliper 10 are radially fixed, and self-regulated seat 3 is only capable of
It is moved axially along caliper 10.
As shown in Figure 4 and Figure 5,4 end of swivel nut is equipped with outward flange, and outward flange outer peripheral surface is equipped with groove 18,3 inner hole of self-regulated seat
Inner peripheral surface be equipped with multiple circumferentially spaced uniformly distributed convex blocks 19 for cooperating with groove 18, the outward flange end of swivel nut 4
It is mounted in 3 inner hole of self-regulated seat and convex block 19 is mutually embedded in groove 18, so that swivel nut 4 and self-regulated seat 3 are radially fixed.
The implementation process of the utility model is as follows:
Parking: as shown in Figure 1,1 output shaft of worm and gear power head is connect by spline with self-adjusting axis 2, worm gear rotates forward band
Dynamic self-adjusting axis 2 rotates, and self-adjusting axis 2 is rotated on self-regulated seat 3 by steel ball 12, by pushing self-regulated with angled alley structure
Seat 3 is moved axially towards 8 direction of brake disc.
Due to self-regulated seat and caliper is radially fixed sees Fig. 2, in self-adjusting axis rotary course under the action of alley, self-regulated seat 3
It pushes swivel nut 4 mobile to brake disc, is fixed on caliper 10, is returned by the first hole retaining ring 13 due to fixed frame 15 at this time
Position spring 14 is compressed, while 4 lead-screw 5 of swivel nut, and screw rod 5 pushes piston 6 to move to brake disc.Rectangular seal 16 at this time
It is deformed, piston 6 pushes interior friction block 7, and inboard brake block is pressed in brake disc 8, and the reaction force of generation will pass through fixation
Self-adjusting axis 2 on caliper is transferred to caliper 10.The movement of caliper draws external friction block 9 to move against brake disc, brake disc two sides
Identical brake force is generated, ensure that the stability of clamping force.
Release: the reversion of power head worm gear, alley pair return to original position, and axial force disappears, and compressed return spring 14 generates
Deboost returns to swivel nut under the action of the thrust in situ, and piston returns under rectangular seal effect, brake release.
Axis in alley pair is shown in that Fig. 4 current of electric is mutated when contacting when returning with the positive stop lug boss on seat, control program sends instructions electricity
Machine stops working, and guarantees that the axial distance of alley pair is minimum, prevents to drag clamping force.
Piston self-regulated: after the abrasion of the friction material of interior friction block 7 and external friction block 9, between existing between screw rod 5 and piston 6
Gap, gap carry out self-regulated by self-adjusting mechanism self-regulated, particular by the volute spring 11 in piston
Return after piston is released, while the also return of screw rod 5, screw rod 5 and piston 6 be there may be axial gap, as shown in figure 1 institute
Show.After return, the axial force that the compression of volute spring 11 generates is greater than screw rod 5 and swivel nut 4 forms the axial friction of screw pair, spiral shell
Bar and swivel nut generate rotation, and screw rod 5 is moved to brake disc direction, and axial gap is eliminated.
Claims (8)
1. a kind of new E PB parking structure, it is characterised in that: including worm and gear power head (1) and be mounted in caliper (10)
Piston (6), interior friction block (7), brake disc (8), external friction block (9), caliper (10) and the clearance self-regulating mechanism in portion, clearance self-regulating
Mechanism includes self-adjusting axis (2), self-regulated seat (3), fixed frame (15), return spring (14) and volute spring (11)；Worm and gear is dynamic
Power head (1) is mounted on caliper (10) outside, and worm and gear power head (1) output end is tube-in-tube structure, and tube-in-tube structure passes through spline
Coaxially connected with self-adjusting axis (2), self-adjusting axis (2) passes through with self-regulated seat (3) one end with angled after extending into caliper (10) inside
Alley structure connection, self-regulated seat (3) other end and swivel nut (4) one end are coaxially connected, swivel nut (4) other end and screw rod (5) one
Thread set connection is held, screw rod (5) other end is fixedly mounted in piston (6) inner hole, and piston (6) end face is equipped with interior friction block
(7), the open mouth tongs portion medial surface of caliper (10) is equipped with external friction block (9), and brake disc (8) is located at interior friction block (7) and external friction
Between block (9)；Fixed frame (15) is fixed on the caliper (10) of swivel nut (4) outside, swivel nut (4) by the first hole with retaining ring (13)
It is set with return spring (14), return spring (14) one end is connected on the outward flange step that swivel nut (4) one end is equipped with, return bullet
Spring (14) other end is connected to fixed frame (15)；The second hole retaining ring (17) is fixed in piston (6) inner hole, screw rod (5) is another
End is equipped with step, and volute spring (11) is sleeved between screw rod (5) and piston (6), and volute spring (11) both ends are connected to spiral shell
Bar (5) other end step and the second hole are with retaining ring (17).
2. a kind of new E PB parking structure according to claim 1, it is characterised in that: described with angled alley
Structure includes the alley that self-adjusting axis (2) end is equipped with and alley and steel ball (12) that self-regulated seat (3) end is equipped with, self-adjusting axis
(2) it extend into the internal end of caliper (10) and is equipped with outward flange, open that there are three the axis arcs circumferentially arranged on the end face of outward flange
Shape alley, self-regulated seat (3) are opened on the end face opposite with self-adjusting axis (2) there are three the seat arc alley circumferentially arranged, and one
A corresponding seat arc alley face of axis arc alley arranges to form complete alley, and one is placed in complete alley
Steel ball (12), the bottom surface gradient of complete alley are 2.5-4.5 degree.
3. a kind of new E PB parking structure according to claim 1, it is characterised in that: three of the self-adjusting axis (2)
Three seat arc alleys of axis arc alley and self-regulated seat (3) constitute three complete alleys, the gradient inclination side of complete alley
To along same identical along counter clockwise direction.
4. a kind of new E PB parking structure according to claim 1, it is characterised in that: the complete alley of described one institute
The angle of circumference accounted for is 80-110 °.
5. a kind of new E PB parking structure according to claim 1, it is characterised in that: the self-regulated seat (3) is radial, all
To being immovably mounted in caliper (10), i.e., self-regulated seat (3) outer diameter and caliper (10) bore inner diameter, which coincide, installs.
6. a kind of new E PB parking structure according to claim 5, it is characterised in that: be equipped with outside the self-regulated seat (3)
Protrusion (20), caliper (10) circumferential surface are equipped with axially disposed strip groove (21), and protrusion (20) is inlaid in strip groove
(21) in and mobile along strip groove (21), so that self-regulated seat (3) and caliper (10) are radially fixed.
7. a kind of new E PB parking structure according to claim 1, it is characterised in that: the swivel nut (4) is radially, circumferentially
Immovably it is installed on self-regulated seat (3).
8. a kind of new E PB parking structure according to claim 7, it is characterised in that: swivel nut (4) end is equipped with outer
Flange, outward flange outer peripheral surface are equipped with groove (18), and the inner peripheral surface of self-regulated seat (3) inner hole is equipped with multiple circumferentially spaced equal
The convex block (19) of cloth, the outward flange end of swivel nut (4) are mounted in self-regulated seat (3) inner hole and make convex block (19) and groove (18)
It is mutually embedded in, so that swivel nut (4) and self-regulated seat (3) are radially fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821222073.5U CN208915147U (en) | 2018-07-31 | 2018-07-31 | A kind of new E PB parking structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821222073.5U CN208915147U (en) | 2018-07-31 | 2018-07-31 | A kind of new E PB parking structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208915147U true CN208915147U (en) | 2019-05-31 |
Family
ID=66701564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821222073.5U Active CN208915147U (en) | 2018-07-31 | 2018-07-31 | A kind of new E PB parking structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN208915147U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108839646A (en) * | 2018-07-31 | 2018-11-20 | 浙江亚太机电股份有限公司 | New E PB parking structure |
| CN112377539A (en) * | 2020-10-13 | 2021-02-19 | 东风汽车集团有限公司 | Brake device and vehicle |
-
2018
- 2018-07-31 CN CN201821222073.5U patent/CN208915147U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108839646A (en) * | 2018-07-31 | 2018-11-20 | 浙江亚太机电股份有限公司 | New E PB parking structure |
| CN112377539A (en) * | 2020-10-13 | 2021-02-19 | 东风汽车集团有限公司 | Brake device and vehicle |
| CN112377539B (en) * | 2020-10-13 | 2021-11-30 | 东风汽车集团有限公司 | Brake device and vehicle |
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