CN201513488U - Electric disc brake - Google Patents
Electric disc brake Download PDFInfo
- Publication number
- CN201513488U CN201513488U CN2009202394479U CN200920239447U CN201513488U CN 201513488 U CN201513488 U CN 201513488U CN 2009202394479 U CN2009202394479 U CN 2009202394479U CN 200920239447 U CN200920239447 U CN 200920239447U CN 201513488 U CN201513488 U CN 201513488U
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- nut
- screw
- differential
- main shaft
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- Expired - Fee Related
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Abstract
The utility model discloses an electric disc brake which comprises a brake caliper body; the brake caliper body is provided with a motor capable of realizing normal rotation and reverse rotation and a differential-motion screw nut mechanism, wherein the differential-motion screw nut mechanism consists of a differential-motion screw rod, a fixed nut and a movable nut; the fixed nut is fixedly connected with the brake caliper body; one side of the fixed nut is provided with the movable nut; the movable nut is provided with a limiting device; a pressure plate is arranged outside the movable nut; the pressure plate is provided with a friction sheet; the motor is provided with a spindle; the spindle is connected with the differential-motion screw rod; and the differential-motion screw rod can move along the axial direction of the spindle and rotates along with the spindle. The electric disc brake has the advantages of dispensing with a brake master pump; and a brake controller can directly control the electric brake devices on all wheels to realize braking action, thus improving the brake response speed and the traveling safety. Therefore, even one brake device does not work, the electric brake devices on other wheels can be used for braking, thereby improving the safety, etc.
Description
Technical field
The utility model relates to a kind of brake device for car, specifically is a kind of disk brake actuator.
Background technique
Braking system is an important component part of automobile.The braking device of existing most of automobile is hydraulic braking.During braking, the driver through the vacuum booster pressurization, is sent to the brake cylinder of each wheel with the hydraulic pipe line mode by pedal control hydraulic braking master cylinder, and disk type braker is carried out hydraulic braking.The retardation pressure height of hydraulic braking, braking force can satisfy the brake needs.But also there are a lot of problems in hydraulic braking sytem, for example: easy oil leakage, low-response, Security is easily gone wrong, in case hydraulic braking master cylinder or oil-way system are malfunctioning, can cause full car to brake, the pipeline setting and the fluid weight of hydraulic system also can cause adverse effect to car load and external environment simultaneously.
Summary of the invention
The purpose of this utility model is to provide a kind of electrical braking device, it can solve the problem that exists in the known technology, adopted motor-differential screw-nut body to implement automobile brake, brak control unit (ECU) is controlled the braking motor enforcement automobile brake of each wheel according to vehicle speed signal and each vehicle wheel rotational speed signal synthesis, improve retardation efficiency greatly, solved the problem of speed of response, highly sensitive, list simple for structure, safe and reliable.
The utility model for achieving the above object, be achieved through the following technical solutions: a kind of disk brake actuator, comprise braking clamp body, install on the braking clamp body and can realize the motor and the differential screw-nut body that rotate and reverse, differential screw-nut body is by differential leading screw, set screw nut and traveling nut are formed, set screw nut is fixedlyed connected with braking clamp body, set screw nut one side is provided with traveling nut, limit stoper is set on the traveling nut, limit stoper can only move traveling nut along differential leading screw axial direction, the traveling nut outside is installed on the platen platen friction plate is installed, main shaft is installed on the motor, main shaft is connected with differential leading screw, and differential leading screw can move and with the main shaft co-rotation along the main shaft axial direction, first section screw thread of differential leading screw one end arranged outside, first section thread pitch is T1, second section screw thread of differential leading screw the other end arranged outside, second section thread pitch is T2, the screw-internal thread fit of first section screw thread and set screw nut, the screw-internal thread fit of second section screw thread and traveling nut, first section thread pitch T1 is greater than second section thread pitch T2.
Described limit stoper is a directional post, offers first pilot hole on the set screw nut, offers second pilot hole on the traveling nut, in first pilot hole and second pilot hole directional post is set.
Described main shaft one end section is an orthohexagonal, and differential leading screw inside is provided with spacing cavity, the orthohexagonal of spacing cavity cross section for matching with main shaft one end section, and main shaft one end is positioned at the spacing cavity of differential leading screw.
Described braking clamp body is the floating brake caliper.
Described motor is disc type torque motor or split blade type torque motor.
Advantage of the present utility model is: cancelled braking overall pump, brake monitor can directly be controlled electrical braking device realization braking maneuver on each wheel, braking response speed and travel safety have been improved, even the situation that single braking device breaks down occurs, also can realize braking, improve Security by the electrical braking device of other wheels; Can be connected with manual braking device by the main shaft that the retarder reducer shell is stretched out in employing, for implementing emergency braking usefulness, the Security that improves automobile brake; Can under abs mode, work, realize the braking anti-lock function of car load; Used motor is realized slowing down by differential screw-nut body, need not to use speed reducer, has reduced the break volume, is easy to install; The direct push-and-pull traveling nut of motor realizes that platen moves, and the platen rate of travel has only 0.3mm-0.5mm, the sensitivity height, and working life is of a specified duration; The utility model also has simple for structure reasonable; In light weight; Low cost of manufacture; Be convenient to install and use; Advantage such as easy to maintenance.
Description of drawings
Accompanying drawing 1 is a plan view of the present utility model; Accompanying drawing 2 is differential screw-nut body schematic representation; Accompanying drawing 3 is A-A cross-sectional view in the accompanying drawing 2.
Embodiment
The contrast accompanying drawing is described further the utility model:
The utility model agent structure has braking clamp body 4, installs on the braking clamp body 4 and can realize the motor 1 and the differential screw-nut body that rotate and reverse.Described differential screw-nut body is made up of differential leading screw 3, set screw nut 12 and traveling nut 8, and wherein set screw nut 12 is fixedlyed connected with braking clamp body 4, and in use, set screw nut 12 is maintained fixed motionless.In set screw nut 12 1 sides traveling nut 8 is set, on the traveling nut 8 guiding device is set, guiding device can only move traveling nut 8 at differential leading screw 3 axial directions, described differential leading screw 3 axial directions are the substantially horizontal shown in the accompanying drawing 1, promptly in use, traveling nut 8 can move horizontally on differential leading screw 3, but can't rotate around differential leading screw 3.Described traveling nut 8 one sides are installed platen 5, and friction plate 6 is installed on the platen 5, and friction plate 6 is corresponding with brake disc 7.Main shaft 10 is installed on the described motor 1, and main shaft 10 is connected with differential leading screw 3, and differential leading screw 3 can move and with main shaft 10 co-rotation, described main shaft 10 axial directions are the substantially horizontal in the accompanying drawing 1 along main shaft 10 axial directions.
First section screw thread of described differential leading screw 3 one end arranged outside, first section thread pitch is T1, second section screw thread of differential leading screw 3 the other end arranged outside, second section thread pitch is T2, first section screw thread cooperates with set screw nut 12 inside threads, second section screw thread cooperates with traveling nut 8 inside threads, first section thread pitch T1 is greater than second section thread pitch T2, during braking, motor 1 drives main shaft 10 just to be changeed, and main shaft 10 drives differential leading screw 3 and rotates, because set screw nut 12 can't move and rotate, so the effect allowance below nominal size movable wire thick stick 3 at first section screw thread moves towards the direction of brake disc 7, establish this displacement distance and be: S1; Because traveling nut 12 can't rotate, so under the effect of second section screw thread, traveling nut 12 moves towards the direction away from brake disc 7, establish this displacement distance and be: S2.Because first section thread pitch T1 is greater than second section thread pitch T2, therefore the movement direction of platen 5 is towards brake disc 7 at this moment, and the displacement distance distance is S1-S2, realizes deceleration and braking to motor 1.Illustrate: if adopt following parameter: T1=2.6mm, T2=2.5mm, motor 1 is just changeing five circles when then braking, can realize that platen 5 moves 0.5mm, the sensitivity height, displacement distance is short, can improve the utility model working life, and need not other gear reducers etc., reduced installation volume
The utility model is easy to install and use.During the cancellation braking, 1 counter-rotating of control motor gets final product, and its concrete steps no longer describe in detail.
Described motor 1 is connected by lead with control gear, just changes rapidly, reverses and realize braking by control gear control motor 1.Motor 1 described in the utility model can be the various motors that just changeing or reversing can realized, preferably adopts disc type torque motor or split blade type torque motor, and above-mentioned two kinds of motors 1 take up room little, be easy to install, output power is big, and the locked rotor current influence is little, and it is little to generate heat.
Motor 1 described in the utility model can be used circlip for hole 16 axial limitings, and also available caliper step is spacing; On the described braking clamp body 4 reducer shell 15 is set, motor 1 is fixed on the reducer shell 15 by 3～4 stop screws.Main shaft 10 can stretch out reducer shell 15 and be connected with manual braking device, for implementing emergency braking usefulness, the Security that improves automobile brake.
In the above-described embodiments, described guiding device can be the limiting stopper or the restraining groove of traveling nut 8 outsides, the utility model discloses a kind of simple for structure, easy for installation, the limit stoper of good limit effect, on set screw nut 12, offer first pilot hole 14, offer second pilot hole 13 on the traveling nut 8, in first pilot hole 14 and second pilot hole 13 directional post 11 is set, set screw nut 12 positions are maintained fixed, thereby the position of first pilot hole 14 is maintained fixed, spacing by directional post 11, second pilot hole 13 can't rotate, and traveling nut 8 can only move along the axial direction of directional post 11, i.e. substantially horizontal as shown in Figure 1.
Braking clamp body 4 is floating brake calipers.On the braking clamp body 4 floating installation is arranged, the wearing and tearing in order to friction compensation sheet 6 and platen 5 increase working life of the present utility model.
Claims (6)
1. disk brake actuator, comprise braking clamp body (4), it is characterized in that: braking clamp body (4) is gone up installation can realize the motor (1) and the differential screw-nut body that rotate and reverse, differential screw-nut body is by differential leading screw (3), set screw nut (12) and traveling nut (8) are formed, set screw nut (12) is fixedlyed connected with braking clamp body (4), set screw nut (12) one sides are provided with traveling nut (8), traveling nut is provided with limit stoper on (8), limit stoper can only move traveling nut (8) along differential leading screw (3) axial direction, platen (5) is installed in traveling nut (8) outside, platen (5) is gone up friction plate (6) is installed, motor (1) is gone up main shaft (10) is installed, main shaft (10) is connected with differential leading screw (3), and differential leading screw (3) can move and with main shaft (10) co-rotation along main shaft (10) axial direction, first section screw thread of differential leading screw (3) one end arranged outside, first section thread pitch is T1, second section screw thread of differential leading screw (3) the other end arranged outside, second section thread pitch is T2, the screw-internal thread fit of first section screw thread and set screw nut (12), the screw-internal thread fit of second section screw thread and traveling nut (8), first section thread pitch T1 is greater than second section thread pitch T2.
2. a kind of disk brake actuator according to claim 1, it is characterized in that: limit stoper is directional post (11), offer first pilot hole (14) on the set screw nut (12), offer second pilot hole (13) on the traveling nut (8), in first pilot hole (14) and second pilot hole (13) directional post (11) is set.
3. a kind of disk brake actuator according to claim 1, it is characterized in that: main shaft (10) one end sections are orthohexagonal, differential leading screw (3) inside is provided with spacing cavity, the orthohexagonal of spacing cavity cross section for matching with main shaft (10) one end sections, main shaft (10) one ends are positioned at the spacing cavity of differential leading screw (3).
4. a kind of disk brake actuator according to claim 1 is characterized in that: braking clamp body (4) is the floating brake caliper.
5. a kind of disk brake actuator according to claim 1 is characterized in that: motor (1) is disc type torque motor or split blade type torque motor.
6. a kind of disk brake actuator according to claim 1 is characterized in that: main shaft (10) is connected with the manual brake control gear by transmission device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202394479U CN201513488U (en) | 2009-10-13 | 2009-10-13 | Electric disc brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202394479U CN201513488U (en) | 2009-10-13 | 2009-10-13 | Electric disc brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201513488U true CN201513488U (en) | 2010-06-23 |
Family
ID=42484896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202394479U Expired - Fee Related CN201513488U (en) | 2009-10-13 | 2009-10-13 | Electric disc brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201513488U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107917157A (en) * | 2017-11-13 | 2018-04-17 | 孟川 | The brake apparatus and method of a kind of automobile |
-
2009
- 2009-10-13 CN CN2009202394479U patent/CN201513488U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107917157A (en) * | 2017-11-13 | 2018-04-17 | 孟川 | The brake apparatus and method of a kind of automobile |
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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: 20100623 Termination date: 20141013 |
|
| EXPY | Termination of patent right or utility model |