CN205244357U - Parking braking executor - Google Patents
Parking braking executor Download PDFInfo
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- CN205244357U CN205244357U CN201520923418.XU CN201520923418U CN205244357U CN 205244357 U CN205244357 U CN 205244357U CN 201520923418 U CN201520923418 U CN 201520923418U CN 205244357 U CN205244357 U CN 205244357U
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- gear
- link
- motor
- parking braking
- plug assembly
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Abstract
The utility model relates to a auto electric braking technology field specifically discloses a parking braking executor, mutually supports through holder and first installation cavity and second installation cavity in the casing, injects the relative position between motor and the planet gear jointly, guarantees that the interval between motor and the planet gear is invariable, and the central axis is parallel to each other to make the structural strength of executor bigger, move more stably. It is further, planet gear's ring gear structure, the two -stage that has integrateed internal gear, structural strength is big, simple to operate, positioning accuracy is high, joint mode simple structure between mounting and the ring gear, the installation effectiveness is high higher with the installation accuracy, and installation intensity is reliable, under the circumstances of broken outer fastener and trip, can not become loose naturally or break away from the joint, first order sun gear and driven pulley integrated into one piece's planet gear input structural strength is big, simple to operate, and the driven pulley cover locates the mode on the ring gear, has saved installation space.
Description
Technical field
The utility model relates to motorcar electric braking technology field, is specifically related to a kind of parking braking actuator.
Background technology
Electronic brake (ElectricalParkingBrake, EPB), refers to the technology that is realized stopping brake by electronic control mode. Electric parking brake generally includes actuator, and the effect of this actuator is to produce moment of torsion, and the power of braking is provided. In prior art, normally produce moment of torsion by electric notor, increase moment of torsion, reduce rotating speed by least one gear stage, and be finally converted into the rectilinear motion of braking mandrel. At present, although the configurations of electronic brake actuator, most of actuator has the defect that existence and stability is poor, noise is large.
Summary of the invention
The technical problems to be solved in the utility model is to provide the parking braking actuator that a kind of structural strength is large, stable, noise is less.
In order to solve the problems of the technologies described above, the technical scheme that the utility model provides is as follows: a kind of parking braking actuator, comprising:
Housing;
Planetary reduction gear, the input of this planetary reduction gear is provided with driven pulley;
Motor, the output of this motor is provided with drive pulley;
Belt, this belt is used for connecting drive pulley and driven pulley;
In described housing, be provided with for the first installation cavity of mounted motor with for the second installation cavity of planetary reduction gear is installed;
Also comprise:
Retainer, this retainer has for the first link of fixed electrical machinery upper end with for fixing the second link of planetary reduction gear upper end;
Motor pressing cover, between described the first link and motor pressing cover, be provided with the plug assembly that at least two groups are mated mutually, between described motor pressing cover and the first link, be formed for holding the cavity of drive pulley, described belt passes two adjacent groups plug assembly and is connected with drive pulley;
Positioning core axle, this positioning core axle is passed the upper surface of described driven pulley and is matched with the locating hole on retainer the second link by the center of planetary reduction gear.
Further, described plug assembly at least comprises the first plug assembly of being located at the closed-loop both sides that are made up of described belt, and this first plug assembly comprises the latch of being located at the first link lower surface and the slot of being located at described motor pressing cover upper surface.
Further, described plug assembly also comprises the second plug assembly, this second plug assembly comprises by the first link edge to the insert-connecting plate of downward-extension with by the upwardly extending arc block plate of motor pressing cover, is provided with the inserting groove matching with described insert-connecting plate on this arc block plate.
Further, the upper surface of described retainer the first link is provided with some projections, and the upper surface of described retainer the second link is provided with locating dowel.
Further, also comprise the lid matching with described housing, this lid is determined installation site by locating dowel and projection, between described retainer and lid inwall, is also provided with beam.
Further, the lower end of described motor contacts with housing by damper element, and the upper surface of described motor is provided with locating slot, and the lower surface of described motor pressing cover is provided with the locating piece matching with quantity and the structure of described locating slot.
Further, described planetary reduction gear is two stage reducer, at least comprise first order sun gear, first order planetary gear, first order planet-wheel carrier, second level sun gear, second level planetary gear, output panel and ring gear and fixture, described ring gear inside comprises first order internal gear and second level internal gear, described fixture is provided with the delivery outlet for output panel is installed, described fixture and described ring gear clamping.
Further, the circumferencial direction of described ring gear is provided with some fixture blocks, and the second installation cavity inwall of described housing is provided with the chute that quantity and structure and described fixture block match, and described fixture block is made up of vibration-absorptive material.
Further, described driven pulley lower surface is provided with the cavity for holding first order internal gear place ring gear, and described first order sun gear is located in described cavity.
Further, described positioning core axle is fixedly arranged in first order planet-wheel carrier, one end of described positioning core axle is provided with first order sun gear and is connected with the locating hole on retainer the second link through driven pulley, and the other end of described positioning core axle is provided with second level sun gear and is connected with the center of output panel.
Parking braking actuator of the present utility model, cooperatively interact by the first installation cavity in retainer and housing and the second installation cavity, the common relative position limiting between motor and planetary reduction gear, ensure the constant gap between motor and planetary reduction gear, central axis is parallel to each other, thereby make the structural strength of actuator larger, move more stable. The ring gear structure of planetary reduction gear, integrated two-stage internal gear, structural strength is large, easy for installation, and positioning precision is high; Snap fit between fixture and ring gear is simple in structure, and installation effectiveness is high, and installation accuracy is also higher, and installation strength is reliable, outside broken, fastener and snap fit in the situation that, can naturally do not fluff or depart from clamping; The integrated planetary reduction gear input end structure intensity of first order sun gear and driven pulley is large, easy for installation, and driven pulley is sheathed on the mode on ring gear, has saved installing space.
Brief description of the drawings
Fig. 1 is the structural representation of the present embodiment parking braking actuator;
Fig. 2 is the structural representation of the present embodiment housing;
Fig. 3 is the blast view of the present embodiment retainer;
Fig. 4 is the structural representation of the present embodiment retainer;
Fig. 5 is the installation site schematic diagram of the present embodiment retainer and motor;
Fig. 6 is the structural representation of the present embodiment planetary reduction gear;
Fig. 7 is the blast status architecture schematic diagram of the present embodiment planetary reduction gear.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated. Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
In description of the present utility model, it will be appreciated that, term " on ", orientation or the position relationship of the instruction such as D score, 'fornt', 'back', " interior ", " outward " be based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, construct and operation with specific orientation, therefore can not be interpreted as restriction of the present utility model.
In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and for example, can be to be fixedly connected with, connect integratedly, can be also to removably connect; It can be the connection of two element internals; Can be to be directly connected, also can indirectly be connected by intermediary, for the ordinary skill in the art, can concrete condition understand the concrete meaning of above-mentioned term in the utility model.
Figure 1 shows that the structural representation of the present embodiment parking braking actuator, wherein lid 200 is half-sectioned state. As shown in Figure 1, this sub-parking braking actuator, comprise housing 100 and lid 200, planetary reduction gear 400 and motor 500 are installed in its housing 100, be connected with drive pulley 510 at the output of motor 500, be connected with driven pulley 10 at the input of planetary reduction gear 400, between drive pulley and driven pulley, connect by belt 600. As preferably, the belt 600 in the present embodiment is cog belt, and drive pulley 510 and driven pulley 10 are toothed wheel. Certainly, non-cog belt and non-toothed wheel form the embodiment that is equal to of the present embodiment equally.
As the improvement of the present embodiment, as shown in Figure 2, in its housing 100, be provided with for the first installation cavity 110 of mounted motor with for the second installation cavity 120 of planetary reduction gear is installed, position near the first installation cavity 110 arranges inlet wire groove 130, and this first installation cavity 110 and the second installation cavity 120 are for limiting the spacing between motor 500 and planetary reduction gear 400. Accordingly, also comprise the retainer 300 shown in Fig. 3, Fig. 4, this retainer 300 has for the first link of fixed electrical machinery 500 upper ends with for fixing the second link of planetary reduction gear 400 upper ends, this retainer 300 cooperatively interacts with the first installation cavity 110 and the second installation cavity 120 in housing 100, the common relative position limiting between motor 500 and planetary reduction gear 400, ensure the constant gap between motor 500 and planetary reduction gear 400, central axis is parallel to each other, thereby make the structural strength of actuator larger, move more stable.
As shown in Figure 3, Figure 4, the retainer 300 in the present embodiment has for the first link of fixed electrical machinery upper end with for fixing the second link of planetary reduction gear upper end. Wherein the first link coordinates motor pressing cover 330 to complete fixing motor 500, between the first link and motor pressing cover 330, be provided with the plug assembly that at least two groups are mated mutually, and between motor pressing cover 330 and the first link, be formed for holding the cavity of drive pulley 510, and belt 600 is through two adjacent groups plug assembly and be connected with drive pulley 510.
Further, the plug assembly in the present embodiment comprises 2 group of first plug assembly being located at the closed-loop both sides that are made up of belt 600, between this 2 group of first plug assembly, forms and holds the gap 370 that belt 600 passes. Above-mentioned the first plug assembly comprises the latch 340 of being located at the first link lower surface and the slot 332 of being located at motor pressing cover upper surface. Wherein the outer wall of slot 332 is provided with some flutings, and forms the material of slot 332 and have certain elasticity, inserts in the process of slot 332 at latch 340, plays the effect of guiding and correction position, is inserted at the end, interfixes.
In the present embodiment, above-mentioned plug assembly also comprises the second plug assembly, this second plug assembly comprises by the first link edge to the insert-connecting plate 350 of downward-extension with by the upwardly extending arc block plate 334 of motor pressing cover, is provided with the inserting groove 333 matching with insert-connecting plate 350 on this arc block plate 334. Under the acting in conjunction of the first plug assembly and the second plug assembly, retainer 300 is relative with motor pressing cover fixing.
Further, as shown in Figure 5, the upper surface of motor 500 is provided with at least 1 locating slot 530 to the mounting means of motor pressing cover 330 and motor 500, and the lower surface of motor pressing cover 330 is provided with the locating piece 335 matching with quantity and the structure of locating slot 530. On motor pressing cover 330, be provided with and hold in through hole 331. installation processes that motor output shaft 520 passes, first motor 500 is installed in the first installation cavity 110 of housing, then motor pressing cover 330 is buckled on motor 500, more then retainer 300 is buckled on motor pressing cover 330.
The structure of the planetary reduction gear 400 of the present embodiment as shown in Figure 6, Figure 7, comprise first order sun gear 13, be 3 first order planetary gears 40, the first order planet-wheel carrier 50 of circumferential arrangement, be provided with the wheel shaft 1 for first order planetary gear 40 is installed at the upper surface of its first order planet-wheel carrier 50, first order sun gear 13 is positioned at first order planet-wheel carrier 50 center and all engages with 3 first order planetary gears 40. Be provided with second level sun gear 53 in the lower surface of its first order planet-wheel carrier 50, second level sun gear 53 all engages with 4 second level planetary gears 60, and wherein 4 second level planetary gears 60 are installed on the wheel shaft 2 71 on output panel 70. Be fixedly installed output spline 73 in the lower end of above-mentioned output panel 70.
It should be noted that, above-mentioned two-stage gear reduction is all installed in ring gear 20. As the improvement of the present embodiment, above-mentioned ring gear 20 inside comprise first order internal gear 21 and second level internal gear 22, and wherein 3 first order planetary gears 40 all engage with first order internal gear 21, and 4 second level planetary gears 60 all engage with second level internal gear 22. The ring gear structure of the present embodiment, integrated two-stage internal gear, structural strength is large, easy for installation, and positioning precision is high.
Further, the planetary reduction gear of the present embodiment also comprises fixture 30, is provided with the delivery outlet 31 for output panel 70 is installed on this fixture 30, above-mentioned fixing piece 30 and ring gear 20 clampings. A kind of preferred structure, is provided with some fixture blocks 23 at the circumferencial direction of ring gear 20, and this fixture block 23 is provided with draw-in groove 24. Accordingly, be provided with the fastener 32 matching with the quantity of draw-in groove 24 on its fixture 30, the free end of this fastener 32 is provided with snap fit 33. It should be noted that, above-mentioned fastener 32 is elastic component, and snap fit 33 is extended radially outward by the outer surface of fastener 32. When installation, snap fit 33 is through in the process of draw-in groove 24, fastener 32 along fixture 30 radially to internal strain, to snap fit 33, thorough through after draw-in groove 24, fastener 32 returns to reset condition, realizes the clamping of snap fit 33 and fixture block 23.
It should be noted that, after snap fit 33 completes with the clamping of fixture block 23, the upper surface of the lower surface of ring gear 20 and fixture 30 fits tightly. This kind of snap fit is simple in structure, and installation effectiveness is high, and installation accuracy is also higher, and installation strength is reliable, outside broken, fastener and snap fit in the situation that, can naturally do not fluff or depart from clamping.
Another place as the present embodiment improves, be provided with driven pulley 10 at the input of its planetary reduction gear, the lower surface of this driven pulley 10 is provided with the cavity 12 for holding first order internal gear place ring gear, and first order sun gear 13 is located in cavity 12, as preferably, first order sun gear 13 is one-body molded with driven pulley 10. The planetary reduction gear input end structure intensity of this structure is large, easy for installation, and driven pulley is sheathed on the mode on ring gear, has saved installing space. Wherein driven pulley 10 can be belt pulley, sprocket wheel or gear etc., in the present embodiment, is preferably toothed belt wheel 11.
Further, in order to install and accurate positioning, in its first order planet-wheel carrier 50, be also provided with positioning core axle 51, one end of this positioning core axle 51 is through first order sun gear 13 and to extend to the end face of driven pulley 10 outer and match with the locating hole 380 on retainer the second link, and the other end is provided with second level sun gear 54 and is connected with output panel 70 center.
Based on reducing the demand of noise, in the present embodiment, the upper surface of retainer 300 first links is provided with some protruding 360, and the upper surface of retainer 300 second links is provided with locating dowel 310. Installing when lid 200, above-mentioned protruding 360 and locating dowel 310 not only play positioning action, also for beam 320 is installed. Further, the lower end of motor 500 contacts with housing by damper element 540; Be provided with some fixture blocks 23 at the circumferencial direction of ring gear 20, the second installation cavity 120 inwalls of housing 100 are provided with the chute 121 that quantity and structure and described fixture block match, and fixture block 23 is made up of vibration-absorptive material.
In a word; the foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model, all any amendments of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (10)
1. a parking braking actuator, comprising:
Housing (100);
Planetary reduction gear (400), the input of this planetary reduction gear is provided with driven pulley (10);
Motor (500), the output of this motor is provided with drive pulley (510);
Belt (600), this belt is used for connecting drive pulley and driven pulley;
It is characterized in that, in described housing, be provided with for first installation cavity (110) of mounted motor with for second installation cavity (120) of planetary reduction gear is installed;
Also comprise:
Retainer (300), this retainer has for the first link of fixed electrical machinery upper end with for fixing the second link of planetary reduction gear upper end;
Motor pressing cover (330), between described the first link and motor pressing cover, be provided with the plug assembly that at least two groups are mated mutually, between described motor pressing cover and the first link, be formed for holding the cavity of drive pulley, described belt passes two adjacent groups plug assembly and is connected with drive pulley;
Positioning core axle (51), this positioning core axle is passed the upper surface of described driven pulley and is matched with the locating hole (380) on retainer the second link by the center of planetary reduction gear.
2. according to parking braking actuator claimed in claim 1, it is characterized in that, described plug assembly at least comprises the first plug assembly of being located at the closed-loop both sides that are made up of described belt, and this first plug assembly comprises the latch (340) of being located at the first link lower surface and the slot (332) of being located at described motor pressing cover upper surface.
3. according to parking braking actuator claimed in claim 2, it is characterized in that, described plug assembly also comprises the second plug assembly, this second plug assembly comprises by the first link edge to the insert-connecting plate (350) of downward-extension with by the upwardly extending arc block plate of motor pressing cover (334), is provided with the inserting groove (333) matching with described insert-connecting plate on this arc block plate.
4. according to parking braking actuator claimed in claim 1, it is characterized in that, the upper surface of described retainer the first link is provided with some projections (360), and the upper surface of described retainer the second link is provided with locating dowel (310).
5. according to parking braking actuator claimed in claim 4, it is characterized in that, also comprise the lid (200) matching with described housing, this lid is determined installation site by locating dowel and projection, is also provided with beam (320) between described retainer and lid inwall.
6. according to parking braking actuator claimed in claim 1, it is characterized in that, the lower end of described motor contacts with housing by damper element (540), the upper surface of described motor is provided with locating slot (530), and the lower surface of described motor pressing cover is provided with the locating piece (335) matching with quantity and the structure of described locating slot.
7. according to the parking braking actuator described in claim 1-6 any one, it is characterized in that, described planetary reduction gear is two stage reducer, at least comprise first order sun gear (13), first order planetary gear (40), first order planet-wheel carrier (50), second level sun gear (53), second level planetary gear (60), output panel (70), ring gear (20) and fixture (30), described ring gear inside comprises first order internal gear (21) and second level internal gear (22), described fixture is provided with the delivery outlet (31) for output panel is installed, described fixture and described ring gear clamping.
8. according to parking braking actuator claimed in claim 7, it is characterized in that, the circumferencial direction of described ring gear is provided with some fixture blocks (23), the second installation cavity inwall of described housing is provided with the chute (121) that quantity and structure and described fixture block match, and described fixture block is made up of vibration-absorptive material.
9. according to parking braking actuator claimed in claim 7, it is characterized in that, described driven pulley lower surface is provided with the cavity (12) for holding first order internal gear place ring gear, and described first order sun gear is located in described cavity.
10. according to the parking braking actuator described in claim 8 or 9, it is characterized in that, described positioning core axle is fixedly arranged in first order planet-wheel carrier, one end of described positioning core axle is provided with first order sun gear and is connected with the locating hole on retainer the second link through driven pulley, and the other end of described positioning core axle is provided with second level sun gear and is connected with the center of output panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520923418.XU CN205244357U (en) | 2015-11-19 | 2015-11-19 | Parking braking executor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520923418.XU CN205244357U (en) | 2015-11-19 | 2015-11-19 | Parking braking executor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205244357U true CN205244357U (en) | 2016-05-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520923418.XU Active CN205244357U (en) | 2015-11-19 | 2015-11-19 | Parking braking executor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205244357U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485330A (en) * | 2015-11-19 | 2016-04-13 | 浙江诸暨万宝机械有限公司 | Electronic parking brake actuator |
-
2015
- 2015-11-19 CN CN201520923418.XU patent/CN205244357U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485330A (en) * | 2015-11-19 | 2016-04-13 | 浙江诸暨万宝机械有限公司 | Electronic parking brake actuator |
| CN105485330B (en) * | 2015-11-19 | 2019-07-05 | 浙江诸暨万宝机械有限公司 | A kind of electronic brake actuator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 311835 Industrial Zone of Diankou Town, Zhuji City, Shaoxing City, Zhejiang Province Patentee after: Zhejiang Wanan Zhiyu Automobile Control System Co.,Ltd. Address before: 311835 Industrial Zone of Diankou Town, Zhuji City, Shaoxing City, Zhejiang Province Patentee before: ZHEJIANG ZHUJI MANPOWER MACHINERY CO.,LTD. |
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| CP01 | Change in the name or title of a patent holder |