CN205190599U - A electronic parking brake device for drum brake - Google Patents
A electronic parking brake device for drum brake Download PDFInfo
- Publication number
- CN205190599U CN205190599U CN201520981809.7U CN201520981809U CN205190599U CN 205190599 U CN205190599 U CN 205190599U CN 201520981809 U CN201520981809 U CN 201520981809U CN 205190599 U CN205190599 U CN 205190599U
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- China
- Prior art keywords
- gear
- brake
- housing
- lead screw
- direct current
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Abstract
The utility model relates to an electronic parking brake device for drum brake fixes on the stopper chassis to with the hydraulic braking piston position symmetry, the device comprises direct current motor, star -wheel mechanism, reduction gears, screw drive mechanism and the shells assembly of going, direct current motor is through going star -wheel mechanism, reduction gears connection screw drive mechanism, screw drive mechanism includes integral key shaft, lead screw axle, tappet, the spline groove of the spline segment of integral key shaft and the gear wheel of the reduction gears sliding connection that matches, the cylindrical section terminal surface and the tappet contact of integral key shaft front end, threaded connection lead screw axle is passed through to the integral key shaft rear end, and the lead screw axle is connected with the slider cooperation of fixing on the casing, lead screw axle rear end is equipped with to rotate connects the tappet, and the two left and right lamellas of brake shoe are connected respectively to two tappets, and along with the rotation of gear wheel, integral key shaft and lead screw axle move or mutually unlucky moving make the brake shoe open and realize that parking or closure realize parking release.
Description
Technical field
The utility model relates to a kind of electronic brake device being applicable to drum brake, uses when this cover motor drive unit is mainly used in parking.
Background technique
The electronic brake system (EPB) that modern vehicle is assembled mainly contains two kinds of forms, and one is boom guy type EPB, and another kind is caliper type EPB.Wherein boom guy type EPB drives brake pulling wire to make the drum-type electronic brake system of parking braking system work by parking braking actuating motor.The parking brake part of boom guy type EPB instead traditional parking brake, also needs to arrange bracing wire and various fixed support simultaneously, occupies larger interior space and the car external space, too increase manufacture cost.And parking braking actuating motor is installed on the brake caliper of trailing wheel both sides by caliper type EPB, controls brake caliper by parking braking actuating motor and move.The complex structure of caliper type EPB, need special brake caliper and relevant parking brake actuator, thus cost is relatively high simultaneously.
At present, most of limousine has electronic brake system, because its manufacture cost is high, expensive, electronic brake system does not generally use on low and middle-grade car and buggy.In existing technology, no matter be traditional hand-braking system or electronic brake system, the braking system used during parking is all attached on Service Brake.If install Liang Tao actuator on the brake, a kind of is hydraulic braking sytem in driving conditions, another kind of simple for motor driven systems during parking, so this device adds parking function while not affecting service brake performance, when emergent, parking braking system can also auxiliary hydraulic pressure braking system be braked, to greatly improve the braking ability of automobile, and increase the Security of automobile.Improve vehicle modeling simultaneously, save interior space and the car external space.
Summary of the invention
Technical problem to be solved in the utility model is for above-mentioned the problems of the prior art, a kind of electronic brake device for drum brake is provided, this apparatus design is reasonable, cost of investment is low and use easy and simple to handle, traditional mechanical type parking braking system can be replaced, integrated a set of motor drive unit on existing hydraulic drum brake, can realize parking, release, auxiliary emergency brake function, Brake shoe clearance adjustment function.
For realizing above-mentioned model utility object, the technical solution of the utility model is: a kind of electronic brake device for drum brake, be fixed in brake chassis, and it is symmetrical with hydraulic braking piston position, this device is made up of direct current generator, planetary wheeling mechanism, reducing gear, lead screw transmission mechanism and frame set, it is characterized in that: described direct current generator is by planetary wheeling mechanism, reducing gear connection wire rod driving mechanism; Described lead screw transmission mechanism comprises splined shaft, screw axis, tappet, the spline of the spline segment of described splined shaft and the gearwheel of reducing gear matches and is slidably connected, the cylindrical section end face of described splined shaft front end contacts with tappet, described splined shaft rear end is threaded connection screw axis, screw axis and the slide block be fixed on housing are connected, and two described tappets connect left and right two lobes of brake shoe respectively.
Described frame set comprises housing, housing lid, electrical machinery cover, be provided with the internal gear in planetary wheeling mechanism, the supporting structure of gearwheel, the supporting structure of screw axis in described housing, in described housing lid, be provided with the pin shaft structure of the supporting structure of gearwheel, fixing middle transition gear; Described housing installs direct current generator.
Described planetary wheeling mechanism comprises central gear, planet wheel, planet carrier and support base plate, described central gear is fixed on the output shaft of direct current generator, central gear is connected with three equally distributed planet wheel outer gearings, three planet wheels are connected with the internal gear internal messing of housing, and described three planet wheels and planet carrier are rotationally connected.
Described reducing gear comprises small gear, middle transition gear and gearwheel, and small gear is fixedly connected with planet carrier central shaft, and the pin shaft structure in two middle transition gears and housing lid is rotationally connected, and small gear and the gearwheel line of centres are arranged symmetrically with.
The beneficial effects of the utility model are: the utility model is made up of direct current generator, planetary wheeling mechanism, reducing gear, lead screw transmission mechanism and frame set.Direct current generator is by planetary wheeling mechanism transport velocity and torque, small gear in drive deceleration mechanism, small gear is by middle transition gear, drive the bull gear drive with internal spline, bull gear drive drives splined shaft to rotate together, splined shaft drives screw axis to move left and right, and simultaneously splined shaft and screw mandrel opposing motion can promote brake shoe and open and realize parking, and move toward one another makes that brake shoe hoof is closed to be realized parking and discharge.
The utility model under the prerequisite not affecting hydraulic braking sytem, can realize parking easily, release, auxiliary emergency brake function, Brake shoe clearance adjustment function.Improve the braking ability of automobile, and increase the Security of automobile, improve vehicle modeling simultaneously, save interior space and the car external space.
Accompanying drawing explanation
Fig. 1 is the three-dimensional exploded view of the electronic brake device for drum brake of the present utility model;
Fig. 2 is the mounting point schematic diagram of the electronic brake device for drum brake of the present utility model;
Fig. 3 is Fig. 2 front view;
Fig. 4 is frame set sectional view;
Fig. 5 is planetary wheeling mechanism gear distribution map;
Fig. 6 is reducing gear gear distribution map.
Embodiment
Below in conjunction with drawings and Examples, model utility is further described.
As shown in Figure 1 to Figure 3, for an electronic brake device for drum brake, comprise tappet 1, splined shaft 2, housing lid 3, middle transition gear 4, small gear 5, planet carrier 6, planet wheel 7, support base plate 8, central gear 9, housing 10, direct current generator 11, electrical machinery cover 12, screw axis 13, gearwheel 14, brake chassis 15, brake shoe 16, hydraulic braking piston 17.
Electronic parking device 18 of the present utility model, is made up of direct current generator 11, planetary wheeling mechanism, reducing gear, lead screw transmission mechanism, frame set.
Lead screw transmission mechanism comprises splined shaft 2, screw axis 13, tappet 1, drive the position of the working position of actuator and hydraulic braking piston 17 in a center of symmetry relative to brake chassis 15, splined shaft 2 comprises interior threaded hole, spline segment, cylindrical section and screw hole, the spline of spline segment and gearwheel 14 matches, and splined shaft 2 is set on gearwheel 14 spline by spline segment; Screw axis 13 comprises external thread section, slide block section, tappet section, and tappet 1 one end is enclosed within the cylindrical section of splined shaft, connects between them with screw, and the other end is connected with brake shoe 16; Splined shaft 2 and screw axis 13 are threaded connection.The slide block section of screw axis 13 is fixed on the slideway of housing, and restriction screw axis can only move left and right, and the tappet section of screw axis 13 is connected with brake shoe 16.Along with the rotation of gearwheel 14, splined shaft 2 and screw axis 13 move toward one another or opposing motion.Brake shoe 16 is opened and realizes parking, move toward one another makes brake shoe 16 close and realizes parking release.
As shown in Fig. 1,4, frame set comprises housing lid 3, housing 10, electrical machinery cover 12, an inner gear structure is comprised in its middle shell 10, housing 10 is fastened in brake chassis 15 by four bolts, housing lid 3 and electrical machinery cover 12 are separately fixed at the both sides of housing 10, and direct current generator 8 is installed on the housing 10.
As Fig. 1, shown in 5, planetary wheeling mechanism comprises central gear 9, planet wheel 7, planet carrier 6 and planet carrier base plate 8, central gear 9 is fixed on the output shaft of direct current generator 11 by Spielpassung, planet wheel 7 is outer gearing and internal messing with the internal gear segments mesh form of central gear 9, housing 10 respectively, the planet wheel 5 of this form is evenly arranged three, and can detour carrier 6 freely.
As Fig. 1, shown in 6, reducing gear comprises small gear 5, middle transition gear 4 and gearwheel 14, the type of belt drive of these three gears is outer gearing, small gear 5 is fixed on planet carrier 6 by Spielpassung, middle transition gear 4 to be fixed in housing lid 3 and can to rotate freely around stationary axle, wherein middle transition gear 4 has two, and be arranged symmetrically with at small gear 5 and gearwheel 14 line of centres, gearwheel 14 center is provided with spline, four keyways are symmetrically arranged with, with lead screw transmission mechanism spline joint in spline.
The utility model under the prerequisite not affecting hydraulic braking sytem, can realize parking easily, release, auxiliary emergency brake function, Brake shoe clearance adjustment function.
Claims (4)
1. the electronic brake device for drum brake, be fixed in brake chassis (15), and with hydraulic braking piston (17) positional symmetry, this device is made up of direct current generator (11), planetary wheeling mechanism, reducing gear, lead screw transmission mechanism and frame set, it is characterized in that: described direct current generator (11) is by planetary wheeling mechanism, reducing gear connection wire rod driving mechanism, described lead screw transmission mechanism comprises splined shaft (2), screw axis (13), tappet (1), the spline of the spline segment of described splined shaft (2) and the gearwheel (14) of reducing gear matches and is slidably connected, cylinder end face and the tappet (1) of described splined shaft (2) front end pass through plane contact, described splined shaft (2) rear end is threaded connection screw axis (13), screw axis (13) and the slide block be fixed on housing are connected, described screw axis (13) rear end is provided with and is rotationally connected tappet (1), two described tappets (1) connect brake shoe (16) left side respectively, right two lobes.
2. the electronic brake device for drum brake according to claim 1, is characterized in that:
Described frame set comprises housing (10), housing lid (3), electrical machinery cover (12), be provided with the internal gear in planetary wheeling mechanism, the supporting structure of gearwheel (14), the supporting structure of screw axis (13) in described housing (10), in described housing lid (3), be provided with the pin shaft structure of the supporting structure of gearwheel (14), fixing middle transition gear (4); Described housing (10) is installed direct current generator (11).
3. the electronic brake device for drum brake according to claim 1, it is characterized in that: described planetary wheeling mechanism comprises central gear (9), planet wheel (7), planet carrier (6) and support base plate (8), described central gear (9) is fixed on the output shaft of direct current generator (11), central gear (9) is connected with the outer gearing of three equally distributed planet wheels (7), three planet wheels (7) are connected with the internal gear internal messing of housing (10), and described three planet wheels (7) and planet carrier (6) are rotationally connected.
4. the electronic brake device for drum brake according to claim 1, is characterized in that:
Described reducing gear comprises small gear (5), middle transition gear (4) and gearwheel (14), small gear (5) is fixedly connected with planet carrier (6) central shaft, two middle transition gears (4) are rotationally connected with the pin shaft structure in housing lid (3), and small gear (5) and gearwheel (14) line of centres are arranged symmetrically with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520981809.7U CN205190599U (en) | 2015-12-01 | 2015-12-01 | A electronic parking brake device for drum brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520981809.7U CN205190599U (en) | 2015-12-01 | 2015-12-01 | A electronic parking brake device for drum brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205190599U true CN205190599U (en) | 2016-04-27 |
Family
ID=55783593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520981809.7U Expired - Fee Related CN205190599U (en) | 2015-12-01 | 2015-12-01 | A electronic parking brake device for drum brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205190599U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105299105A (en) * | 2015-12-01 | 2016-02-03 | 潍坊埃锐制动系统有限公司 | Electronic parking brake device used for drum brake |
| CN110617286A (en) * | 2019-10-17 | 2019-12-27 | 吉林大学 | Electronic parking brake drum brake |
| CN112211924A (en) * | 2020-10-15 | 2021-01-12 | 安徽理工大学 | Electronic mechanical drum brake integrating traveling and parking braking functions |
| CN115339428A (en) * | 2022-08-29 | 2022-11-15 | 四川野马汽车股份有限公司 | Parking braking device for drum brake |
-
2015
- 2015-12-01 CN CN201520981809.7U patent/CN205190599U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105299105A (en) * | 2015-12-01 | 2016-02-03 | 潍坊埃锐制动系统有限公司 | Electronic parking brake device used for drum brake |
| CN110617286A (en) * | 2019-10-17 | 2019-12-27 | 吉林大学 | Electronic parking brake drum brake |
| CN112211924A (en) * | 2020-10-15 | 2021-01-12 | 安徽理工大学 | Electronic mechanical drum brake integrating traveling and parking braking functions |
| CN112211924B (en) * | 2020-10-15 | 2022-02-08 | 安徽理工大学 | Electronic mechanical drum brake integrating traveling and parking braking functions |
| CN115339428A (en) * | 2022-08-29 | 2022-11-15 | 四川野马汽车股份有限公司 | Parking braking device for drum brake |
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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 |
Granted publication date: 20160427 Termination date: 20201201 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |