CN202294734U - Automobile central parking braking device - Google Patents
Automobile central parking braking device Download PDFInfo
- Publication number
- CN202294734U CN202294734U CN2011202788726U CN201120278872U CN202294734U CN 202294734 U CN202294734 U CN 202294734U CN 2011202788726 U CN2011202788726 U CN 2011202788726U CN 201120278872 U CN201120278872 U CN 201120278872U CN 202294734 U CN202294734 U CN 202294734U
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- China
- Prior art keywords
- brake
- drum
- transmission shaft
- bearing
- automobile central
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses an automobile central parking braking device which is characterized by comprising drum brakes, a central shaft (2) and a bearing (7), wherein the two ends of the central shaft (2) are respectively provided with the drum brake; the central shaft (2) is arranged on a bracket (1) by the bearing (7); the outer side of the bearing (7) is provided with an oil seal (9); each drum brake comprises a brake drum (4), a friction shoe (5) and a brake back plate (8); each drum brake is provided with an operating stay wire (10); the brake drum (4) is provided with a transmission shaft (11); and the brake drum (4) is connected with the transmission shaft (11) by a connecting plate (3), and the connecting plate (3) is connected with the central shaft (2) by a spline, so that the central shaft (2), the brake drum (4) and the transmission shaft (11) can be transmitted at the same time. The automobile central parking braking device has the advantages of being convenient in installation, small in volume, large in brake moment and the like, and is obvious in real car using effect.
Description
Technical field
The utility model relates to brake equipment, specifically, relates to central holding brake device.
Background technology
The automobile parking braking performance is an important indicator of automobile, and international and domestic standard all has clear and definite and compulsory requirement to different classes of automobile.
The mode that realizes Parking in the industry mainly contains three types, the one, utilize driving Parking one car side brake, same secondary ferrodo (piece) is used in braking during standstill and service brake.Modal is in the air braking system of widespread use on large-tonnage trucks, and the spring thrust that utilizes spring brake cylinder under deflated state, to produce forces brake friction pair to produce friction force, realizes brake action; Second type also is to be contained in the car side brake, but is to use the independently drg of ferrodo (piece).This Parking structure is modal to be drum structure in the dish; The 3rd type is to use central Parking Brake, is installed on transmission output shaft or the transmission shaft, finally affacts through transmission of torque and realizes Parking on the wheel.
For first kind Parking mode, requiring under the very big situation of braking during standstill moment, the design-calculated parking control mechanism will be comparatively complicated, and oad is big, and this has caused difficulty for the installation of drg on real vehicle; For second type of Parking mode; Service brake and braking during standstill use independently ferrodo (piece); The service brake size is little relatively for the used ferrodo (piece) of braking during standstill, and the braking moment also lock torque than driving is little, and its value is difficult to satisfy the sloping requirement of staying than steep gradient; For the 3rd type of Parking mode, for satisfying the sloping requirement of staying of heavy grade, the oad of drg is little can not to meet the demands, and large-sized drum brake mechanism can cause difficulty to layout again.
The utility model content
The purpose of the utility model is; Above-mentioned defective to the prior art existence; A kind of automobile central holding brake device is provided; This device provides a kind of Parking Brake mounting structure that is connected in series on the transmission shaft, has advantages such as easy for installation, that volume is little, lock torque is big, and the real vehicle result of use is obvious.
A kind of automobile central holding brake device that the utility model provides, its improvements are to comprise drum brake mechanism, center shaft and bearing; The two ends of said center shaft are respectively equipped with a drum brake mechanism, and said center shaft passes through bearing installation to mounting bracket; The outside of said bearing is provided with oil sealing; Said drum brake mechanism comprises brake wheel, friction shoe plate and brake support plate, and drum brake mechanism is provided with stear drawing line; Said brake wheel is provided with transmission shaft; Said brake wheel is connected with transmission shaft through terminal pad, and said terminal pad is connected with center shaft through spline, thereby realizes that center shaft, brake wheel (4) and transmission shaft rotate together.
The first preferred automobile central holding brake device that the utility model provides, the said brake support plate of its improvements is connected with mounting bracket through the location seal ring.
The second preferred automobile central holding brake device that the utility model provides, said terminal pad, location seal ring, brake support plate and mounting bracket are fixed.
The 3rd preferred automobile central holding brake device that the utility model provides, said transmission shaft is connected on the brake wheel through bolt of rear end plate.
The 4th preferred automobile central holding brake device that the utility model provides, the synchronous unitary rotation of said brake wheel and transmission shaft.
The 5th preferred automobile central holding brake device that the utility model provides, said location seal ring is provided with and is bearing grease oil sealed mounting hole, the connecting bore of brake support plate and support and oil sealed dismounting auxiliary hole.
Center shaft passes through bearing installation to mounting bracket; Drum brake mechanism is that market is directly bought; Comprise brake wheel, friction shoe plate and brake support plate etc.; Drum brake mechanism installs and fixes the center shaft two ends, and transmission shaft is connected on the brake wheel through bolt of rear end plate, and mode connects whole Parking Brake into driving system thus; Stear drawing line is set, bearing arranged outside oil sealing on the drum brake mechanism of brake wheel and the formation of friction shoe plate.
Compared with prior art, a kind of central holding brake device that provides of the utility model has the following advantages:
1, the drg radial dimension is little, is convenient to arrange onboard;
2, lock torque is the twice of single brake torque, and lock torque can be enough big;
3, erection support is fixed on the vehicle frame, when two backguys are strained simultaneously, can realizes that less installing space satisfies the needs of bigger lock torque;
4, increased a drum brake mechanism, it has correspondingly increased the parts that are connected with drum brake mechanism, makes this device satisfy the sloping requirement of staying than steep gradient easily.
Description of drawings
Fig. 1 is: the cutaway view of a kind of automobile central holding brake device that the utility model provides;
Fig. 2 is: the birds-eye view of the cutaway view of Fig. 1 of a kind of automobile central holding brake device that the utility model provides;
Fig. 3 is: the drum brake mechanism of a kind of automobile central holding brake device that the utility model provides and the annexation figure of stear drawing line;
Fig. 4 is: the left view of the location seal ring of a kind of automobile central holding brake device that the utility model provides;
Fig. 5 is: the cutaway view of the location seal ring of a kind of automobile central holding brake device that the utility model provides;
Among the figure: 1, mounting bracket; 2, center shaft; 3, terminal pad; 4, brake wheel; 5, friction shoe plate; 6, location seal ring; 7, bearing; 8, brake support plate; 9, oil sealing; 10, stear drawing line; 11, transmission shaft.
The specific embodiment
Below a kind of automobile central holding brake device of the utility model being provided through accompanying drawing and embodiment do further more detailed explanation;
The automobile central holding brake device of present embodiment shown in Fig. 1-5, comprises drum brake mechanism, center shaft 2 and bearing 7; The two ends of center shaft 2 are respectively equipped with a drum brake mechanism, and center shaft 2 is installed on the mounting bracket 1 through bearing 7; The outside of bearing 7 is provided with oil sealing 9; Drum brake mechanism comprises brake wheel 4, friction shoe plate 5 and brake support plate 8, and drum brake mechanism is provided with stear drawing line 10; Brake wheel 4 is provided with transmission shaft 11; Brake wheel 4 is connected with transmission shaft 11 through terminal pad 3, and terminal pad 3 is connected with center shaft 2 through spline, thereby realizes that center shaft 2, brake wheel 4 and transmission shaft 11 rotate together.
Parking Brake is fixed on the vehicle frame through mounting bracket 1, and the Parking Brake both sides connect transmission shaft, and the transmission shaft of a side is connected on change speed gear box or the part-time case, and the transmission shaft of an other side is connected to the vehicle bridge input end.When normal driving, there is not pulling force on the stear drawing line 9, gapped between brake wheel 4 and the friction shoe plate 5, do not produce friction force, the power on the transmission shaft is through center shaft 2 free of losses transmission.When needing Parking after the parking, be applied on the stear drawing line 9 through pulling force such as Parking handle or spring cylinders, through the mechanism in the shoe plate; Impel between brake wheel 4 and the friction shoe plate 5 and fit; Produce friction force, the rotation of brake wheel 4 is limited, and is limited with 10 rotations of brake wheel 4 bonded assembly transmission shafts; Produce Parking moment, realize Parking.
Under the situation that two backguys of drg are strained simultaneously, two side brakes play brake action simultaneously, satisfy the needs of bigger lock torque.
Two drum brake mechanisms link together through a center shaft and bearing, and the friction pair of two drgs can produce friction moment simultaneously under the effect of handling external force, plays the Parking effect.Be connected in series on the transmission shaft, the lock torque that Parking Brake produces can produce bigger braking effect on wheel after the vehicle bridge speed reduction gearing amplifies.
Bearing and drum brake mechanism are installed in center shaft two ends, this drum brake mechanism brake wheel and the synchronous unitary rotation of transmission shaft, and brake support plate and mounting bracket are fixed;
Terminal pad is set the brake wheel and the transmission shaft of drum brake mechanism linked together, terminal pad is connected through spline with center shaft, thereby realizes that center shaft, brake wheel and transmission shaft rotate together;
The location seal ring links together brake support plate and support, and the location seal ring plays location and leak free effect simultaneously.
Should be noted that at last: above embodiment only in order to the explanation the utility model technical scheme but not to its restriction; Although the utility model has been carried out detailed explanation with reference to the foregoing description; Under the those of ordinary skill in field be to be understood that: technical personnel is read after the present specification still and can made amendment or be equal to replacement the specific embodiment of the utility model, does not await the reply within the claim protection domain but these modifications or change all break away from the utility model application.
Claims (5)
1. an automobile central holding brake device is characterized in that comprising drum brake mechanism, center shaft (2) and bearing (7); The two ends of said center shaft (2) are respectively equipped with a drum brake mechanism, and said center shaft (2) is installed on the mounting bracket (1) through bearing (7); The outside of said bearing (7) is provided with oil sealing (9); Said drum brake mechanism comprises brake wheel (4), friction shoe plate (5) and brake support plate (8), and drum brake mechanism is provided with stear drawing line (10); Said brake wheel (4) is provided with transmission shaft (11); Said brake wheel (4) is connected with transmission shaft (11) through terminal pad (3), and said terminal pad (3) is connected with center shaft (2) through spline, thereby realizes that center shaft (2), brake wheel (4) and transmission shaft (11) rotate together.
2. automobile central holding brake device according to claim 1 is characterized in that said brake support plate (8) is connected with mounting bracket (1) through location seal ring (6).
3. automobile central holding brake device according to claim 1 is characterized in that said terminal pad (3), location seal ring (6), brake support plate (8) and mounting bracket (1) are fixing.
4. automobile central holding brake device according to claim 1 is characterized in that said transmission shaft (11) is connected on the brake wheel (4) through bolt of rear end plate.
5. automobile central holding brake device according to claim 1 is characterized in that said location seal ring (6) is provided with and is bearing grease oil sealed mounting hole, the connecting bore of brake support plate and support and oil sealed dismounting auxiliary hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202788726U CN202294734U (en) | 2011-07-26 | 2011-07-26 | Automobile central parking braking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202788726U CN202294734U (en) | 2011-07-26 | 2011-07-26 | Automobile central parking braking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202294734U true CN202294734U (en) | 2012-07-04 |
Family
ID=46363685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202788726U Expired - Fee Related CN202294734U (en) | 2011-07-26 | 2011-07-26 | Automobile central parking braking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202294734U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112460171A (en) * | 2020-12-09 | 2021-03-09 | 湖北航天技术研究院特种车辆技术中心 | Drum-type parking brake assembly for electric wheel and electric wheel vehicle |
-
2011
- 2011-07-26 CN CN2011202788726U patent/CN202294734U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112460171A (en) * | 2020-12-09 | 2021-03-09 | 湖北航天技术研究院特种车辆技术中心 | Drum-type parking brake assembly for electric wheel and electric wheel vehicle |
| CN112460171B (en) * | 2020-12-09 | 2021-12-28 | 湖北航天技术研究院特种车辆技术中心 | Drum-type parking brake assembly for electric wheel and electric wheel vehicle |
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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: 20120704 Termination date: 20170726 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |