CN205154982U - Electronic parking brake power assembly drive mechanism - Google Patents
Electronic parking brake power assembly drive mechanism Download PDFInfo
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- CN205154982U CN205154982U CN201520872927.4U CN201520872927U CN205154982U CN 205154982 U CN205154982 U CN 205154982U CN 201520872927 U CN201520872927 U CN 201520872927U CN 205154982 U CN205154982 U CN 205154982U
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- gear
- assembly
- motor
- parking brake
- planet
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- 230000007246 mechanism Effects 0.000 title claims abstract description 46
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 16
- 239000002184 metal Substances 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 abstract description 16
- 230000009467 reduction Effects 0.000 description 5
- 230000007423 decrease Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000002788 crimping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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Abstract
The utility model relates to an electronic parking brake power assembly drive mechanism, including motor, base, drive mechanism, drive mechanism includes motor gear, transmission gear assembly, sun gear assembly, planet wheel assembly, the transmission gear assembly includes first gear wheel and first pinion, first gear wheel and motor gear intermeshing, the sun gear assembly includes second largest gear and second pinion, second largest gear and first pinion intermeshing, planet wheel assembly includes planet carrier, four planet wheels, set up the central through hole on the planet carrier, take turns intermeshing in the second pinion embedding central through hole and with four planets, opposite side embedding or an organic whole of central through hole set up the output unit. Electronic parking brake power assembly drive mechanism guaranteeing that whole speed reducing ratio does not become under the circumstances, simplified drive mechanism's structure by a wide margin, reduced spare part quantity.
Description
Technical field
The utility model relates to electric parking brake technical field, is specifically related to a kind of electric parking brake power assembly driving mechanism.
Background technique
Electric parking brake also claims electronics parking brake, refers to and the provisional braking in driving conditions and the long time property braking function after stopping is combined, and realize the technology of stopping brake by electronic control mode.The actuator of electric parking brake generally comprises motor and driving mechanism, and driving mechanism is generally used for the output speed reducing motor, and raising output torque passes to brake calipers and realizes parking function simultaneously.Existing driving mechanism can adopt the multiple kind of drive, as tape handler, worm gearing, cylindrical gear drive, planetary gear mechanism etc.Generally, in order to obtain specific reduction speed ratio, Multi-stage transmission can also be adopted.
Fig. 1 is the structural representation of electric parking brake power assembly driving mechanism common at present.As shown in Figure 1, electric parking brake power assembly driving mechanism comprises motor 1, and the downstream of motor 1 sets gradually takes turns by electrical machine belt pulley 2, Timing Belt 3, large synchronous pulley assembly 4, primary planet wheel assembly, secondary planet the driving mechanism always formed.Wherein, primary planet wheel assembly comprises first order planetary pinion 5 and first order planet carrier 9.Secondary planet wheel assembly comprises second level planetary pinion 7 and second level planet carrier 8.First order planetary pinion 5, second level planetary pinion 7 engage each other with outside gear ring 6 respectively.When electronics change trains or buses the motor 1 of break work time, motor 1 rotates and drives electrical machine belt pulley 2 to rotate, the rotation of electrical machine belt pulley 2 successively by Timing Belt 3, large synchronous pulley assembly 4, primary planet wheel assembly, secondary planet wheel assembly finally to be exported by output block 10, thus realizes parking function.
Substituting as traditional Parking Brake, mainly there is following defect in this kind of common electric parking brake power assembly driving mechanism: the toothed belt transmission 1, existed in transmission system, and V belt translation is for gear transmission, and reliability ground, cost is higher.2, in transmission system, need two-stage planet to slow down, component are more, and manufacture cost is high, and during motion, noise is large, and transmission efficiency is low.
Model utility content
Technical problem to be solved in the utility model is: ensureing under the prerequisite that the overall reduction speed ratio of electric parking brake driving mechanism is constant, there is provided a kind of and adopt all-gear drive, significantly simplify drive mechanism, reduce the electric parking brake power assembly driving mechanism of amount of parts.
The utility model solves the problems of the technologies described above adopted technological scheme: a kind of electric parking brake power assembly driving mechanism, comprise motor, pedestal, be arranged at the driving mechanism in motor downstream, described driving mechanism comprises motor gear, transfer gear assembly, sun gear assembly, planet wheel assembly
Described motor gear is arranged at the output terminal of motor;
Described transfer gear assembly comprises first gear, and described first gear support body center arranges the first small gear, and described first gear and motor gear engage each other;
Described sun gear assembly comprises second largest gear, and described second largest gear support body center arranges the second small gear, and the first small gear of described second largest gear and transfer gear assembly engages each other;
Described planet wheel assembly comprises planet carrier, four planet wheels be uniformly distributed on planet carrier, described planet carrier arranges central through bore, second small gear of described sun gear assembly to embed in central through bore and engages each other with four planet wheels, and the opposite side of described central through bore embeds or is wholely set output block;
Described motor is arranged on pedestal, and the pedestal corresponding with described planet wheel assembly arranges external toothing, and described external toothing can engage each other with the planet wheel rotated.
In electric parking brake power assembly driving mechanism described in the utility model, when machine operation, motor shaft rotates and drive motor pinion rotation, the rotation of the rotating drive transfer gear assembly intermeshing with it of motor gear, the rotation of the rotating drive sun gear assembly intermeshing with it of transfer gear assembly, planet wheel assembly is driven by sun gear assembly and realizes rotation and revolution, and the final planet carrier that drives rotates, and is exported by moment of torsion.
As preferably, each described planet wheel is fixed on planet carrier by hollow metal pivot pin, and the both sides end face of described hollow metal pivot pin is equal with the end face of planet carrier.Adopt hollow metal pivot pin to be fixed on planet carrier by planet wheel, contribute to the oeverall quality reducing planet wheel assembly.
As preferably, described output block is gear, exports spline or output shaft.
As preferably, the end face of described planet carrier and output block homonymy is provided with at least two symmetrical lug bosses, and described lug boss is used for contacting with other structure member surface when planet wheel general assembly.Described lug boss the area of contact that can reduce carrier main-body and other structure member is set, thus reduce kinetic friction, reduce noise.
As preferably, described transfer gear assembly supports fixing by the back shaft be arranged on pedestal.
The utility model compared with the existing technology has the following advantages and effect:
1, electric parking brake power assembly driving mechanism described in the utility model completes reduction motor speed by motor gear, transfer gear assembly, sun gear assembly, planet wheel assembly successively, and the transmission process of output torque.Compared with the driving mechanism of common electric parking brake, complex structure, reliability ground and the higher toothed belt transmission of preparation cost is replaced with simple gear transmission, not only simplify the structure of driving mechanism, decrease amount of parts needed for transmission, and reduce the preparation cost of whole electric parking brake power assembly.
2, compared with the driving mechanism of common electric parking brake, electric parking brake power assembly driving mechanism described in the utility model only need adopt primary planet wheel assembly, and coordinate transfer gear assembly, sun gear assembly, specific reduction speed ratio can be obtained, then simplify transmission progression, decrease due to transmission progression more and produce noise.
3, planet wheel assembly realizes revolving round the sun and driving planet carrier to rotate necessary external toothing and be integrally formed on pedestal by the utility model, and then further simplify the assembling of planet wheel assembly, decreases the use of component, reduces manufacturing cost.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is existing common electric parking brake power assembly driving mechanism structural representation.
Fig. 2 is electric parking brake power assembly driving mechanism structural representation described in the utility model.
Fig. 3 is driving gear assembly structure schematic diagram described in the utility model.
Fig. 4 is sun gear assembly structure schematic diagram described in the utility model.
Fig. 5 is planet wheel assembly structure schematic diagram described in the utility model.
Fig. 6 is the structural representation of pedestal described in the utility model.
Label declaration: 1, motor; 2, electrical machine belt pulley; 3, Timing Belt; 4, large synchronous pulley assembly; 5, first order planetary pinion; 6, outside gear ring; 7, second level planet wheel gear; 8, the second planet carrier; 9, the first row carrier; 10, output block; 11, transfer gear assembly; 12, sun gear assembly; 13, planet wheel assembly; 14, pedestal; 15, upper cover; 16, first gear; 17, the first small gear; 18, axis hole; 19, second largest gear; 20, the second small gear; 21, motor gear; 22, planet wheel; 23, hollow metal pivot pin; 24, lug boss; 25, external toothing; 26, planet carrier.
Embodiment
Be described in further detail the utility model below in conjunction with embodiment, following examples are that the utility model is not limited to following examples to explanation of the present utility model.
Embodiment 1: as shown in Figures 2 to 6, a kind of electric parking brake power assembly driving mechanism, comprise motor 1, pedestal 14, upper cover 15, be arranged at the driving mechanism in motor 1 downstream, described driving mechanism comprises motor gear 21, transfer gear assembly 11, sun gear assembly 12, planet wheel assembly 13
Described motor gear 21 is arranged at the output terminal of motor 1, and described motor gear 21 adopts crimping mode to be connected with the motor shaft being arranged at motor 1 inside, and drives rotation by motor shaft;
Described transfer gear assembly 11 comprises first gear 16, and described first gear 16 support body center arranges the first small gear 17, and described first gear 16 engages each other with motor gear 21;
Described sun gear assembly 12 comprises second largest gear 19, and described second largest gear 19 support body center arranges the second small gear 20, and described second largest gear 19 engages each other with the first small gear 17 of transfer gear assembly 11;
Described planet wheel assembly 13 comprises planet carrier 26, four planet wheels 22 be uniformly distributed on planet carrier 26, described planet carrier 21 arranges central through bore, second small gear 20 of described sun gear assembly 12 to embed in central through bore and engages each other with four planet wheels 22, the opposite side of described central through bore is wholely set or embeds output block 10, and described output block 10 is for exporting spline or gear or output shaft;
Described motor 1 is arranged on pedestal 14, and the pedestal 14 corresponding with described planet wheel assembly 13 arranges external toothing 25, and described external toothing 25 can engage each other with the planet wheel 22 rotated.
In the present embodiment 1, transfer gear assembly 11 cooperatively interacts to realize supporting fix by being arranged at axis hole on the first small gear 17 18 and the back shaft be arranged on pedestal 14.
In the present embodiment 1, planet carrier 26 is uniformly distributed four circular holes, four circular holes are all concentric with the center hole of four planet wheels 22 during assembling.In concrete assembly process, riveting technique can be adopted to be fixed on planet carrier 26 by hollow metal pivot pin 23 by four planet wheels 22, and make the end face of hollow metal pivot pin 23 equal with the both sides end face of planet carrier 26.
In the present embodiment 1, described output block 10 can adopt with planet carrier 26 mode be wholely set, and then can simplify the assembly process of driving mechanism further.In addition, fix planet wheel 22 by hollow metal pivot pin 23, effectively can reduce the total quality of planet wheel assembly 13.
Embodiment 2: as shown in Figures 2 to 6, and a kind of electric parking brake power assembly driving mechanism, is with the difference of embodiment 1, and described planet carrier 26 and the end face of output block 10 homonymy are provided with at least two symmetrical lug bosses 24.Multiple described lug boss 24 is for contacting with other structure member surface when planet wheel assembly 13 assembles.Described lug boss 24 the area of contact that can reduce planet carrier 26 main body and other structure member is set, thus reduce kinetic friction, reduce noise.
In the electric parking brake power assembly driving mechanism described in the present embodiment 1, embodiment 2, when motor 1 works, motor shaft rotates and drives motor gear 21 to rotate, motor gear 21 rotates and drives transfer gear 11 to rotate, transfer gear 11 drives sun gear assembly 12 to rotate by the first small gear 17, sun gear assembly 12 drives 4 planet wheels 22 to realize rotation by the second small gear 20 and the revolution that is the center of circle with the geometrical center of planet carrier 26, then drive whole planet carrier 26 to rotate, and finally exported by output block 10.
The present embodiment 1 or the electric parking brake power assembly driving mechanism described in embodiment 2 are compared with common electric parking brake power assembly driving mechanism, under the overall reduction speed ratio of guarantee does not become situation, significantly simplify the structure of driving mechanism, decrease amount of parts.Due to the minimizing of amount of parts, manufacture cost significantly reduces, overall weight also has and reduces by a relatively large margin, and the minimizing of transmission progression, such that rotational noise reduces, energy loss reduces, and improves overall transmission efficiency.
In addition, it should be noted that, the specific embodiment described in this specification, the shape, institute's title of being named etc. of its parts and components can be different.All equivalences of doing according to structure, feature and the principle described in the utility model inventional idea or simple change, be included in the protection domain of the utility model patent.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment; only otherwise depart from structure of the present utility model or surmount this scope as defined in the claims, protection domain of the present utility model all should be belonged to.
Claims (5)
1. an electric parking brake power assembly driving mechanism, comprise motor (1), pedestal (14), be arranged at the driving mechanism in motor (1) downstream, it is characterized in that, described driving mechanism comprises motor gear (21), transfer gear assembly (11), sun gear assembly (12), planet wheel assembly (13)
Described motor gear (21) is arranged at the output terminal of motor (1);
Described transfer gear assembly (11) comprises first gear (16), described first gear (16) support body center arranges the first small gear (17), and described first gear (16) and motor gear (21) engage each other;
Described sun gear assembly (12) comprises second largest gear (19), described second largest gear (19) support body center arranges the second small gear (20), and described second largest gear (19) engages each other with first small gear (17) of transfer gear assembly (11);
Described planet wheel assembly (13) comprises planet carrier (26), four planet wheels (22) be uniformly distributed on planet carrier (26), (26) arrange central through bore to described planet carrier, second small gear (20) of described sun gear assembly (12) to embed in central through bore and engages each other with four planet wheels (22), and the opposite side of described central through bore embeds or is wholely set output block (10);
Described motor (1) is arranged on pedestal (14), the pedestal (14) corresponding with described planet wheel assembly (13) arranges external toothing (25), and described external toothing (25) can engage each other with the planet wheel (22) rotated.
2. electric parking brake power assembly driving mechanism according to claim 1, it is characterized in that, each described planet wheel (22) is fixed on planet carrier (26) by hollow metal pivot pin (23), and the both sides end face of described hollow metal pivot pin (23) is equal with the end face of planet carrier (26).
3. electric parking brake power assembly driving mechanism according to claim 1, is characterized in that, described output block (10) is gear, exports spline or output shaft.
4. electric parking brake power assembly driving mechanism according to claim 1, it is characterized in that, described planet carrier (26) and the end face of output block (10) homonymy are provided with at least two symmetrical lug bosses (24).
5. electric parking brake power assembly driving mechanism according to claim 1, is characterized in that, described transfer gear assembly (11) supports fixing by the back shaft be arranged on pedestal (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520872927.4U CN205154982U (en) | 2015-11-04 | 2015-11-04 | Electronic parking brake power assembly drive mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520872927.4U CN205154982U (en) | 2015-11-04 | 2015-11-04 | Electronic parking brake power assembly drive mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205154982U true CN205154982U (en) | 2016-04-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520872927.4U Expired - Fee Related CN205154982U (en) | 2015-11-04 | 2015-11-04 | Electronic parking brake power assembly drive mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205154982U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105257741A (en) * | 2015-11-04 | 2016-01-20 | 浙江万向精工有限公司 | Electronic parking brake power assembly transmission mechanism |
| FR3104662A1 (en) * | 2019-12-12 | 2021-06-18 | Foundation Brakes France | Planet carrier comprising at least one journal mounted floating in the body of the planet carrier |
-
2015
- 2015-11-04 CN CN201520872927.4U patent/CN205154982U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105257741A (en) * | 2015-11-04 | 2016-01-20 | 浙江万向精工有限公司 | Electronic parking brake power assembly transmission mechanism |
| FR3104662A1 (en) * | 2019-12-12 | 2021-06-18 | Foundation Brakes France | Planet carrier comprising at least one journal mounted floating in the body of the planet carrier |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160413 Termination date: 20211104 |