CN204041795U - Worm screw oblique worm gear disc type electric parking brake - Google Patents
Worm screw oblique worm gear disc type electric parking brake Download PDFInfo
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- CN204041795U CN204041795U CN201420477645.XU CN201420477645U CN204041795U CN 204041795 U CN204041795 U CN 204041795U CN 201420477645 U CN201420477645 U CN 201420477645U CN 204041795 U CN204041795 U CN 204041795U
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Abstract
The utility model discloses a kind of worm screw oblique worm gear disc type electric parking brake, comprise actuation gear and brake caliper assy, actuation gear comprises the housing be fixed on the braking clamp body of brake caliper assy, is provided with the oblique Worm wheel transmission mechanism of worm screw in housing; Wherein tiltedly the worm wheel symmetrical center line of worm gear dish is relative to the axis tilt several angle of worm-wheel shaft, and worm-wheel shaft outer end is inserted in described braking clamp body; Be provided with drive motor in housing side and be connected with worm screw one end, by lock-nut adjustment screw in hull outside one screw, adjusting screw the inner leans the interior edge face top of described oblique worm gear dish, for transmitting the reaction force of driving mechanism.Beneficial effect is: can reduce driver's physical output, simplify park braking system for automobile, realize clearance self-regulating, deceleration increasing turned round, motion conversion function and the reverse auto-lock function of machinery, power consumption during long-time parking can be reduced, and it is low to transform processing cost, manufacture process and technological process inheritance good.
Description
Technical field
The utility model relates to the actuator in a kind of park braking system for automobile, or rather, and particularly a kind of worm screw oblique worm gear disc type electric parking brake.
Background technique
Current conventional truck parking braking system controls the form of mechanical drag-line to implement parking braking mainly through parking brake handle grip, although structure is simple, cost is low, but there is many shortcomings, such as consume driver's muscle power, uphill starting complex operation, be difficult to realize clearance self-regulating, Security is lower.Along with the development of automotive electronic technology, there is X-by-wire on Automobile in field of automobile control, and then occur Automotive By-Wire Control Technology.Electronic brake system EPB (Electric Park Brake) is a class of Automotive By-Wire Control Technology.
Electronic brake system EPB forms primarily of electric parking brake and electronic control unit.Wherein electric parking brake is converted into the translation of brake slipper the stability of rotation of motor, can be slowed down the brake clearance increasing and turn round auto-compensation and produce due to long-term work simultaneously, and volume is little, compact structure, it is very important constituent element in whole electronic brake system EPB.
Existing electric parking brake generally comprises the parts such as direct current generator, driving mechanism (being generally made up of reducing gear and movement conversion mechanism), brake calipers and brake disc.The solution of current reducing gear is more, has the planetary gear reducing mechanism of Tian He company of the U.S. abroad, the domestic few teeth difference compound planet gear mechanism having the dynamo-electric Co., Ltd in Asia-Pacific, Zhejiang.The current kind of movement conversion mechanism is less, is generally ball screw, bolt and nut mechanism.
Summary of the invention
The purpose of this utility model is to provide a kind of worm screw oblique worm gear disc type electric parking brake, this break can realize clearance self-regulating, deceleration increasing is turned round, motion conversion function and the reverse auto-lock function of machinery, further goal of the invention reduces driver's physical output, simplify park braking system for automobile, power consumption during long-time parking can be reduced, and it is low to transform processing cost, manufacture process and technological process inheritance good.
For achieving the above object, the utility model adopts following technological scheme:
A kind of worm screw oblique worm gear disc type electric parking brake, comprise actuation gear and brake caliper assy, described actuation gear comprises:
Housing, away from brake slipper one end on the braking clamp body being fixed on brake caliper assy;
Driving mechanism, is arranged in housing for promoting brake caliper assy action;
Worm screw, is arranged on housing by the bearing support at its two ends, and worm screw main body is positioned at housing;
Oblique worm gear, be made up of worm-wheel shaft and oblique worm gear dish, oblique worm gear dish is positioned at housing and bottom and worm meshing, the worm wheel symmetrical center line of oblique worm gear dish relative to the axis tilt several angle α of worm-wheel shaft, for realizing moving axially of oblique worm gear under the support of adjusting screw; Worm-wheel shaft outer end is inserted in the braking clamp body of brake caliper assy, promotes the brake slipper action be positioned in brake caliper assy on the right side of brake disc for transferring power;
Drive motor, is arranged on housing side by a motor cover for seat, and is connected with worm screw one end, for drive transmission device action;
Adjusting screw, it to be screwed in hull outside one screw and is fixed by lock-nut, adjusting screw the inner leans the interior edge face top of described oblique worm gear dish, for transmitting the reaction force of driving mechanism, thus the braking clamp body being promoted brake caliper assy by housing is moved with the brake slipper be positioned on the left of brake disc.
As preferred further, the deflection angle α between the worm wheel symmetrical center line of described oblique worm gear dish and worm-wheel shaft axis is 5-10 degree.
As preferred further, described drive motor is DC servo motor and is fixed in motor cover for seat by a retaining washer, and drive motor output shaft is inserted worm screw one end and also connected by key.
As further preferably, be symmetrically installed with two setting sleeves on the housing by interference fit, described housing and described braking clamp body are located by setting sleeve and affixed by the attachment bolt running through setting sleeve.
As preferred further, described brake caliper assy comprises braking clamp body, brake-caliper support, two brake slipper, piston and clearance self-regulating mechanisms, described braking clamp body is symmetrically fixed with two guide fingers by clamping bolt, and by guide finger and brake-caliper support grafting; Described two brake slipper to be stuck on brake-caliper support respectively by stopper spring and to be positioned at brake disc both sides; Described piston and clearance self-regulating mechanism are located in the cavity portion of braking clamp body, the brake slipper of homonymy is close in described piston exterior edge face, piston is connected with the cavity portion inner end of braking clamp body by clearance self-regulating mechanism, and the cavity portion that braking clamp body is inserted in described worm-wheel shaft outer end is interior also successively by clearance self-regulating mechanism and piston promotion brake slipper realization braking.
As further preferably, be provided with a piston packing be enclosed within by interference fit on piston outer wall, to reset after auxiliary piston braking at the cavity portion inwall of described braking clamp body.
As preferred further, described clearance self-regulating mechanism comprises the self-regulated nut assembly and self-regulated screw arbor assembly that are threaded connection.
As preferred further, described self-regulated nut assembly comprises self-regulated nut, self-regulated nut is set with thrust ball bearing, colored shape sheet, waveform elastic sheet and self-regulated nut back-up ring that two structures are identical successively, and described self-regulated nut assembly is stuck in piston by self-regulated nut back-up ring.
As preferred further, described self-regulated screw arbor assembly comprises self-regulated screw rod, self-regulated screw rod one end screws in self-regulated nut, pressure spring, spring shield and copper backing is respectively installed with at the self-regulated screw rod the other end, described spring shield is enclosed within the outside of pressure spring and is stuck in the cavity portion inner end of described braking clamp body by circlip, leans self-regulated screw rod in the cavity portion that described worm-wheel shaft outer end is inserted into described braking clamp body by copper backing.
As preferred further, in the cavity portion external port of described braking clamp body, be provided with the O RunddichtringO, spacer and the bellows that are enclosed within worm-wheel shaft successively, described bellows outer end protrude from braking clamp body cavity portion external port and with oblique worm gear dish end contact.
The beneficial effects of the utility model are:
1, worm screw described in the utility model oblique worm gear disc type electric parking brake makes parking brake handle grip replaced, simplified further relative to conventional truck parking braking system control gear, save cab space, reduce physical output during driver's parking.
2, owing to adopting worm screw oblique worm gear engagement transmission mechanism, therefore compact structure, velocity ratio are large, and can realize deceleration increasing simultaneously and turn round function and motion conversion function, and the rotation by worm gear is converted to the translation of worm-wheel shaft, and stable drive is reliable.
3, owing to adopting the oblique worm gear engagement transmission mechanism of worm screw, mechanical reverse self-locking can therefore be realized, therefore power consumption when can reduce long-time parking.
4, due to the utility model be original with Curve guide impeller on the disk brake assembly basis of parking and braking mechanism, therefore there is clearance self-regulating function, and transformation processing cost is low, manufacture process and technological process inheritance good.
Accompanying drawing explanation
Fig. 1 is structure sectional view of the present utility model.
Fig. 2 is the A-A partial sectional view of Fig. 1.
Fig. 3 is the decomposing type axonometric projection graph of actuation gear of the present utility model and brake caliper assy position relationship.
Fig. 4 is the decomposing type axonometric projection graph of actuation gear structure of the present utility model composition.
Fig. 5 is the decomposing type axonometric projection graph of the oblique Worm wheel transmission mechanism of worm screw of the present utility model.
Fig. 6 is the decomposing type axonometric projection graph of brake caliper assy of the present utility model.
In figure: braking clamp body 1, caliper part 101, cavity portion 102, brake slipper 2, brake disc 3, piston dust cover 4, piston 5, piston packing 6, self-regulated nut 7, thrust ball bearing 8, flower shape sheet 9, waveform elastic sheet 10, self-regulated nut back-up ring 11, self-regulated screw rod 12, big disk 1201, spring shield 13, notch 1301, pressure spring 14, copper backing 15, O RunddichtringO 16, bellows 17, oblique worm gear 18, oblique worm gear dish 1801, worm-wheel shaft 1802, housing 19, lock-nut 20, adjusting screw 21, spacer 22, worm screw 23, circlip 24, bearing support 25, bearing sealed ring 26, bearing 27, motor cover for seat 28, drive motor 29, anti-vibration sleeve 30, retaining washer 31, brake caliper assy 32, actuation gear 33, setting sleeve 34, attachment bolt 35, guide finger 36, brake-caliper support 37, screw 38, bolt 39, stopper spring 40, clamping bolt 41.
Embodiment
As Figure 1-Figure 5, a kind of worm screw oblique worm gear disc type electric parking brake involved by the utility model, comprises actuation gear 33 and brake caliper assy 32.Described actuation gear 33 comprises a housing 19, is provided with the driving mechanism for promoting brake caliper assy 32 action in housing 19, is provided with drive motor 29, housing 19 is provided with adjusting screw 21 in housing 19 side.
Described housing 19 is the integrative-structures be made up of the uncovered hollow box body of one side and the Special-shaped flange that is located at the uncovered side of casing, away from brake slipper 2 one end on the braking clamp body 1 that housing 19 is fixed on brake caliper assy 32, the Special-shaped flange of described housing 19 is installed with two setting sleeves 34 by interference fit symmetry, and described housing 19 and described braking clamp body 1 are located by setting sleeve 34 and affixed by the attachment bolt 35 running through setting sleeve 34.Described driving mechanism comprises a worm screw 23 and oblique worm gear 18, described worm screw 23 two ends are run through respectively by bearing support 25 and bearing 27 and are arranged on bottom in housing 19, worm screw 23 main body is positioned at housing 19, bearing support 25 is inserted respectively and is fixed on the front and rear sides of housing 19 by bolt 39, is respectively installed with bearing sealed ring 26 outside the bearing 27 being positioned at bearing support 25 at worm screw 23 two ends.Described oblique worm gear 18 is made up of the worm-wheel shaft 1802 be connected as a single entity and oblique worm gear dish 1801, oblique worm gear dish 1801 is positioned at housing 19 and bottom is engaged with worm screw 23, the worm wheel symmetrical center line of oblique worm gear dish 1801 is relative to the axis tilt several angle α of worm-wheel shaft 1802, as preferably, the deflection angle α between the worm wheel symmetrical center line of described oblique worm gear dish 1801 and worm-wheel shaft 1802 axis is 5-10 degree.Be provided with the cylindrical boss of an one in oblique worm gear dish 1801 outer end, the exterior edge face of cylindrical boss is vertical plane.Oblique worm gear dish 1801 all adopts evolvent type structure with the profile of tooth of worm screw 23, and tiltedly worm gear dish 1801 is equal with Normal pressure angle with the normal module of worm screw 23, the angle of lead of worm screw 23 is equal with the helix angle of oblique worm gear dish 1801, the rotation direction of worm screw 23 is identical with the rotation direction of oblique worm gear dish 1801, and the transverse module of worm screw 23 is equal with the transverse module of oblique worm gear dish 1801.In addition because the worm wheel symmetrical center line of oblique worm gear dish 1801 and the spin axis of its worm-wheel shaft 1802 exist differential seat angle, therefore worm screw 23 center line not at oblique worm gear dish 1801 along on separated time in facewidth direction.
Described drive motor 29 is by a motor cover for seat 28 and be bolted on the bearing support 25 of housing 19 side, and be coaxially connected with worm screw 23 one end, described drive motor 29 is DC servo motor and is fixed in motor cover for seat 28 by a retaining washer 31 and screw 38, drive motor 29 output shaft to be inserted in worm screw 23 one end center hole and is connected by key, for drive transmission device action.Anti-vibration sleeve 30 is provided with, to protect motor between motor cover for seat 28 the inner and drive motor 29.
It is interior and fixing by lock-nut 20 that described adjusting screw 21 screws in housing 19 outer upper one screw, outside housing 19, corresponding described screw place is provided with a counter sink, adjusting screw 21 is positioned at counter sink and the inner is that semicircle is spherical, it to screw in housing 19 and leans the interior edge face top of described oblique worm gear dish 1801, by the axial mounting point of the adjustable adjusting screw of lock-nut 20 21, for transmitting the reaction force of driving mechanism, thus promote the braking clamp body 1 of brake caliper assy 32 by housing 19 and the brake slipper 2 be positioned on the left of brake disc 3 moves.
As shown in Fig. 1, Fig. 3 and Fig. 6, described brake caliper assy 32 is the floating caliper brake that existing car generally adopts, and it can double as parking brake actuator while as service brake actuator.Described brake caliper assy 32 comprises braking clamp body 1, brake-caliper support 37, two brake slipper 2, piston 5 and clearance self-regulating mechanisms.Two bolts hole that wherein brake-caliper support 37 passes its both sides, lower end by bolt are fixed on the knuckle of wheel steering system, described braking clamp body 1 is the integral structure be made up of a caliper part 101 and a cavity portion 102, caliper part 101 both sides of braking clamp body 1 upper end are symmetrically fixed with two guide fingers 36 by clamping bolt 41, and to be inserted respectively in jack corresponding to two, brake-caliper support 37 upper end by guide finger 36 and for being slidably matched, braking clamp body 1 can be slid axially along guide finger 36.Described two brake slipper 2 to be stuck on brake-caliper support 37 respectively by stopper spring 40 and to be positioned at brake disc 3 both sides, brake slipper 2 can be moved axially but can not play up and down, outside the brake slipper 2 that the trapezoid boss being attached to by trapezoid boss that in the caliper part 101 of described braking clamp body 1, corresponding brake slipper 2 one end is provided with one is positioned on the left of brake disc 3.Described piston 5 and clearance self-regulating mechanism are located in the cavity portion 102 of braking clamp body 1, the brake slipper 2 of homonymy is close in described piston 5 exterior edge face, piston 5 is connected with cavity portion 102 inner end of braking clamp body 1 by clearance self-regulating mechanism, also promotes brake slipper 2 by clearance self-regulating mechanism and piston 5 successively and realize braking in the cavity portion 102 of described worm-wheel shaft 1802 outer end insertion braking clamp body 1.
As shown in Figure 1, two annular grooves are provided with near its inner port place at cavity portion 102 inwall of described braking clamp body 1, in described two annular grooves, piston packing 6 and piston dust cover 4 are housed respectively, described piston packing 6 is enclosed within piston 5 outer wall by interference fit, brakes rear reset to help piston 5.Described piston dust cover 4 is made for rubber material and to be positioned at outside piston packing 6 and to be stuck in piston 5 outer end.
As shown in figures 1 to 6, described clearance self-regulating mechanism comprises the self-regulated nut assembly and self-regulated screw arbor assembly that are threaded connection.Described self-regulated nut assembly comprises a self-regulated nut 7, self-regulated nut 7 outer wall is stepped cylindrical body and the annular boss diameter being positioned at middle part is greater than the cylindrical section external diameter of its both sides, the annular boss shaft shoulder of self-regulated nut 7 is along the circumferential direction evenly equipped with six through holes, so that brake fluid flowing during service brake.Thrust ball bearing 8, two structures identical colored shape sheet 9, waveform elastic sheet 10 and self-regulated nut back-up ring 11 is set with successively outside the annular boss that self-regulated nut 7 is positioned at wherein portion, described waveform elastic sheet 10 is clipped between two colored shape sheets 9, described self-regulated nut assembly is stuck in the shoulder hole of piston 5 by self-regulated nut back-up ring 11, the conical surface cooperatively interacted is processed with, to guarantee the axial motion of self-regulated nut 7 to pass to piston 5 between the annular boss and piston 5 endoporus ladder card edge of self-regulated nut 7.
Described colored shape sheet 9 is an along the circumferential direction uniform annular flake processing six grooves, thus the power that can play the self-regulated nut back-up ring 11 being stuck in piston 5 inside groove is subject to passes to waveform elastic sheet 10 and self-regulated nut 7, do not hinder again the flowing of hydraulic oil during service brake.Described waveform elastic sheet 10 is an annular flake and stamps out a circle circular arc projection, can produce axial deformation.
Described self-regulated screw arbor assembly comprises self-regulated screw rod 12, self-regulated screw rod 12 one end is processed with outside thread and screws in self-regulated nut 7, pressure spring 14 is respectively installed with at self-regulated screw rod 12 the other end, spring shield 13 and copper backing 15, described spring shield 13 is cup tubular and is enclosed within the outside of pressure spring 14, the cup of spring shield 13 is stuck in cavity portion 102 inner end of described braking clamp body 1 by circlip 24 along one end, the big disk 1201 of one is provided with at the other end of described self-regulated screw rod 12, described big disk 1201 to insert in spring shield 13 and snaps in symmetry by the symmetrical boss be located in its outer rim and is located at the cup of spring shield 13 along in the notch 1301 on the barrel of one end, the length of described notch 1301 is greater than the thickness of described boss, described pressure spring 14 is stuck at the bottom of the cup of spring shield 13 and between described big disk 1201.Described copper backing 15 is enclosed within the central shaft heads of described self-regulated screw rod 12 the other end, described worm-wheel shaft 1802 outer end passed by housing 19 be inserted into described braking clamp body 1 cavity portion 102 in and lean self-regulated screw rod 12 by copper backing 15, promote brake slipper 2 action be positioned in brake caliper assy 32 on the right side of brake disc 3 for transferring power.
As shown in Figure 1, O RunddichtringO 16, spacer 22 and the bellows 17 for being enclosed within worm-wheel shaft 1802 is provided with successively in cavity portion 102 external port of described braking clamp body 1, described bellows 17 outer end protrude from braking clamp body 1 cavity portion 102 external port and with the cylindrical boss end contact of oblique worm gear dish 1801, described worm-wheel shaft 1802 outer end leans on copper backing 15 through after bellows 17, spacer 22 and O RunddichtringO 16 successively.
During non-parking braking, the tooth mesh regional of worm screw 23 and oblique worm gear dish 1801 is at worm screw 23 center line right-hand member.During parking braking, drive motor 29 drives worm screw 23 to rotate, worm screw 23 by with oblique worm gear dish 1801 engage transmission of torque give oblique worm gear dish 1801, due to the inclination of oblique worm gear dish 1801 symmetrical center line, therefore oblique worm gear dish 1801 is while rotating around its worm-wheel shaft 1802 axis, under the contact of adjusting screw 21 is spacing, oblique worm gear dish 1801 will move axially left.The mesh regional of oblique worm gear dish 1801 and worm screw 23 is also moved to the left along worm-wheel shaft 1802 line direction, and remains engagement driving.And then tiltedly worm gear dish 1801 promotes copper backing 15, self-regulated screw rod 12, self-regulated nut 7 and piston 5 successively by worm-wheel shaft 1802 and is moved to the left, the final brake slipper 2 promoted on the right side of brake disc 3 moves to left close brake disc 3; Simultaneously, because the worm wheel symmetrical center line of oblique worm gear dish 1801 is relative to the axis tilt several angle of worm-wheel shaft 1802, therefore rotate at oblique worm gear dish 1801 and promote braking clamp body 1 by adjusting screw 21 simultaneously and move right, and drive the brake slipper 2 be positioned on the left of brake disc 3 to move to right near brake disc 3 by the trapezoid boss on braking clamp body 1, thus produce braking force.
During brake off, drive motor 29 reverses and drives worm screw 23 to rotate backward, in like manner tiltedly worm gear dish 1801 and worm screw 23 mesh regional move right, the worm-wheel shaft 1802 of oblique worm gear 18 no longer promotes clearance self-regulating mechanism, and then under the effect of pressure spring 14, make clearance self-regulating mechanism move to right reset, buffer shock-absorbing effect can be played when self-regulated nut 7 return by waveform elastic sheet 10, thus reduce noise; Be positioned at piston packing 6 distortion when braking on piston 5, now just restore to the original state, make piston 5 return, brake caliper assy 32 brake off, the brake slipper 2 being positioned at brake disc 3 both sides resets respectively under the effect of stopper spring 40.Because general Disk Brake gap is probably 0.2mm, so the worm wheel symmetrical center line tiltedly in worm gear dish 1801 just can ensure within differing 10 degree with the axis of its worm-wheel shaft 1802 oblique worm gear dish 1801 rotate be no more than 120 degree time, the axial displacement of oblique worm gear dish 1801 just can meet brake request.
If brake slipper 2 weares and teares and produces a small amount of excessive gaps in using process, when then braking, piston 5 is by an opposing pistons seal ring 6 slippage left segment distance, because self-regulated nut assembly can not be separated by being connected with piston 5, so now self-regulated nut 7 can relatively rotate by screw thread the identical distance that moves forward with self-regulated screw rod 12 under the effect of thrust ball bearing 8, thus realize the automatic adjustment of brake clearance.
Although embodiment of the present utility model is open as above, but it is not restricted to listed in specification and mode of execution utilization, it can be applied to various applicable field of the present utility model completely, for those skilled in the art, can easily realize other amendment, therefore do not deviating under the universal that claim and equivalency range limit, the utility model is not limited to specific details and illustrates here and the legend described.
Claims (10)
1. a worm screw oblique worm gear disc type electric parking brake, comprises actuation gear and brake caliper assy, it is characterized in that: described actuation gear comprises:
Housing, away from brake slipper one end on the braking clamp body being fixed on brake caliper assy;
Driving mechanism, is arranged in housing for promoting brake caliper assy action;
Worm screw, is arranged on housing by the bearing support at its two ends, and worm screw main body is positioned at housing;
Oblique worm gear, be made up of worm-wheel shaft and oblique worm gear dish, oblique worm gear dish is positioned at housing and bottom and worm meshing, the worm wheel symmetrical center line of oblique worm gear dish relative to the axis tilt several angle α of worm-wheel shaft, for realizing moving axially of oblique worm gear under the support of adjusting screw; Worm-wheel shaft outer end is inserted in the braking clamp body of brake caliper assy, promotes the brake slipper action be positioned in brake caliper assy on the right side of brake disc for transferring power;
Drive motor, is arranged on housing side by a motor cover for seat, and is connected with worm screw one end, for drive transmission device action;
Described adjusting screw to be screwed in hull outside one screw and is fixed by lock-nut, adjusting screw the inner leans the interior edge face top of described oblique worm gear dish, for transmitting the reaction force of driving mechanism, thus the braking clamp body being promoted brake caliper assy by housing is moved with the brake slipper be positioned on the left of brake disc.
2. worm screw according to claim 1 oblique worm gear disc type electric parking brake, is characterized in that: the deflection angle α between the worm wheel symmetrical center line of described oblique worm gear dish and worm-wheel shaft axis is 5-10 degree.
3. worm screw according to claim 1 and 2 oblique worm gear disc type electric parking brake, it is characterized in that: described drive motor is DC servo motor and is fixed in motor cover for seat by a retaining washer, drive motor output shaft is inserted worm screw one end and is connected by key.
4. worm screw according to claim 1 oblique worm gear disc type electric parking brake, it is characterized in that: be symmetrically installed with two setting sleeves by interference fit on the housing, described housing and described braking clamp body are located by setting sleeve and affixed by the attachment bolt running through setting sleeve.
5. the oblique worm gear disc type of the worm screw according to claim 1 or 4 electric parking brake, it is characterized in that: described brake caliper assy comprises described braking clamp body, brake-caliper support, two brake slipper, piston and clearance self-regulating mechanisms, described braking clamp body is symmetrically fixed with two guide fingers by clamping bolt, and by guide finger and brake-caliper support grafting; Described two brake slipper to be stuck on brake-caliper support respectively by stopper spring and to be positioned at brake disc both sides; Described piston and clearance self-regulating mechanism are located in the cavity portion of braking clamp body, the brake slipper of homonymy is close in described piston exterior edge face, piston is connected with the cavity portion inner end of braking clamp body by clearance self-regulating mechanism, and the cavity portion that braking clamp body is inserted in described worm-wheel shaft outer end is interior also successively by clearance self-regulating mechanism and piston promotion brake slipper realization braking.
6. worm screw according to claim 5 oblique worm gear disc type electric parking brake, is characterized in that: be provided with a piston packing be enclosed within by interference fit on piston outer wall at the cavity portion inwall of described braking clamp body, to reset after auxiliary piston braking.
7. worm screw according to claim 5 oblique worm gear disc type electric parking brake, is characterized in that: described clearance self-regulating mechanism comprises the self-regulated nut assembly and self-regulated screw arbor assembly that are threaded connection.
8. worm screw according to claim 7 oblique worm gear disc type electric parking brake, it is characterized in that: described self-regulated nut assembly comprises self-regulated nut, self-regulated nut is set with thrust ball bearing, colored shape sheet, waveform elastic sheet and self-regulated nut back-up ring that two structures are identical successively, and described self-regulated nut assembly is stuck in piston by self-regulated nut back-up ring.
9. worm screw according to claim 7 oblique worm gear disc type electric parking brake, it is characterized in that: described self-regulated screw arbor assembly comprises self-regulated screw rod, self-regulated screw rod one end screws in self-regulated nut, pressure spring, spring shield and copper backing is respectively installed with at the self-regulated screw rod the other end, described spring shield is enclosed within the outside of pressure spring and is stuck in the cavity portion inner end of described braking clamp body by circlip, leans self-regulated screw rod in the cavity portion that described worm-wheel shaft outer end is inserted into described braking clamp body by copper backing.
10. the oblique worm gear disc type of the worm screw according to claim 1 or 6 electric parking brake, it is characterized in that: in the cavity portion external port of described braking clamp body, be provided with the O RunddichtringO, spacer and the bellows that are enclosed within worm-wheel shaft successively, described bellows outer end protrude from braking clamp body cavity portion external port and with oblique worm gear dish end contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420477645.XU CN204041795U (en) | 2014-08-20 | 2014-08-20 | Worm screw oblique worm gear disc type electric parking brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420477645.XU CN204041795U (en) | 2014-08-20 | 2014-08-20 | Worm screw oblique worm gear disc type electric parking brake |
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| CN204041795U true CN204041795U (en) | 2014-12-24 |
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| CN201420477645.XU Active CN204041795U (en) | 2014-08-20 | 2014-08-20 | Worm screw oblique worm gear disc type electric parking brake |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104196929A (en) * | 2014-08-20 | 2014-12-10 | 吉林大学 | Worm and inclined-worm-gear-disc type electronic parking brake |
| CN105773020A (en) * | 2016-05-31 | 2016-07-20 | 孙卫香 | Multifunctional welding tractor |
| CN107882901A (en) * | 2017-12-27 | 2018-04-06 | 嘉兴盛鼎机械有限公司 | Brake chamber with self-locking halting mechanism |
| CN108223624A (en) * | 2016-12-22 | 2018-06-29 | 比亚迪股份有限公司 | Electrodynamic type brake and with its vehicle |
| CN110425236A (en) * | 2019-07-27 | 2019-11-08 | 浙江师范大学 | A kind of self energizing effort brake-by-wire device |
| CN110486392A (en) * | 2019-07-27 | 2019-11-22 | 浙江师范大学 | A kind of self energizing effort brake-by-wire device |
-
2014
- 2014-08-20 CN CN201420477645.XU patent/CN204041795U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104196929A (en) * | 2014-08-20 | 2014-12-10 | 吉林大学 | Worm and inclined-worm-gear-disc type electronic parking brake |
| CN104196929B (en) * | 2014-08-20 | 2017-01-25 | 吉林大学 | Worm and inclined-worm-gear-disc type electronic parking brake |
| CN105773020A (en) * | 2016-05-31 | 2016-07-20 | 孙卫香 | Multifunctional welding tractor |
| CN108223624A (en) * | 2016-12-22 | 2018-06-29 | 比亚迪股份有限公司 | Electrodynamic type brake and with its vehicle |
| CN107882901A (en) * | 2017-12-27 | 2018-04-06 | 嘉兴盛鼎机械有限公司 | Brake chamber with self-locking halting mechanism |
| CN107882901B (en) * | 2017-12-27 | 2023-08-08 | 嘉兴盛鼎机械有限公司 | Brake chamber with self-locking parking mechanism |
| CN110425236A (en) * | 2019-07-27 | 2019-11-08 | 浙江师范大学 | A kind of self energizing effort brake-by-wire device |
| CN110486392A (en) * | 2019-07-27 | 2019-11-22 | 浙江师范大学 | A kind of self energizing effort brake-by-wire device |
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