CN204493512U - Heavy band parking brake drive unit - Google Patents
Heavy band parking brake drive unit Download PDFInfo
- Publication number
- CN204493512U CN204493512U CN201520147168.5U CN201520147168U CN204493512U CN 204493512 U CN204493512 U CN 204493512U CN 201520147168 U CN201520147168 U CN 201520147168U CN 204493512 U CN204493512 U CN 204493512U
- Authority
- CN
- China
- Prior art keywords
- output shaft
- front case
- bonnet
- friction plate
- middle shell
- 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
Heavy band parking brake drive unit, comprise bonnet, middle shell, front case, piston, output shaft, disc spring, friction plate, couple axle, it is characterized in that being provided with middle shell between bonnet and front case, bonnet, middle shell, front case is bolted, front case two ends adopt single-row tapered roller bearing I, output shaft is fixed on front case by single-row tapered roller bearing II, the front end of described output shaft is stretched out outside front case, the rear end of output shaft extends to bonnet position, described output shaft rear end offers the keyway matched with couple axle two ends spline, the beneficial effects of the utility model are that output shaft is by single-row tapered roller bearing I, single-row tapered roller bearing II is fixed on front case, make output shaft on the same axis, operate steadily, transmission efficiency is high, and pulling down bonnet and middle shell, directly can to take down friction plate detachable maintaining convenient, and can not impact output shaft in detachable maintaining process.
Description
Technical field
The utility model relates to hydraulic brake technology field, is more particularly a kind of heavy band parking brake drive unit.
Background technique
Brake mainly has the couple axle for transmission that power is sent to output shaft, and then outputed power by output shaft, the patent No. is: " 201320818716.3 ", patent name is: in the model utility of complete-disc wet-type hydraulic brake, by being arranged on, bearing on bonnet and housing is rotatable is fixed on housing axial location to output shaft, because the front end of output shaft and rear end are separately fixed on bonnet and housing, the front end of output shaft and rear end will be caused not on the same axis in installation process, cause operation not steady, transmission efficiency is low, because the friction plate of static friction sheet and movable friction plate composition is arranged on the inside of housing, when keeping in repair friction plate, bonnet is needed to disassemble, in the process of detachable maintaining, also can relate to the dismounting of output shaft and reinstall, make maintenance trouble, and the impact of installation again of output shaft runs not steady, reduce transmission efficiency low.
Summary of the invention
For solving the problem, the utility model devises a kind of output shaft and is fixed on same housing, operate steadily, transmission efficiency is high, detachable maintaining is convenient, and can not from the new heavy type band parking brake drive unit installing output shaft, its technological scheme is: described heavy type band parking brake drive unit comprises bonnet, middle shell, front case, piston, output shaft, disc spring, friction plate, couple axle, is characterized in that being provided with middle shell between bonnet and front case, bonnet, middle shell, front case is bolted, and front case two ends adopt single-row tapered roller bearing I, output shaft is fixed on front case by single-row tapered roller bearing II, the front end of described output shaft is stretched out outside front case, the rear end of output shaft extends to bonnet position, described couple axle two ends are provided with spline, described output shaft rear end offers the keyway matched with couple axle two ends spline, one end of couple axle is placed in the keyway of output shaft rear end, described output shaft rear end is provided with friction plate, described friction plate comprises movable friction plate and static friction sheet, friction plate one side is near bonnet, one end of friction plate another side and piston offsets, and is provided with disc spring between the other end of piston and front case, described middle shell, front case, piston surrounds enclosed space jointly, front case has and middle shell, front case, piston surrounds the oilhole that confined space communicates jointly.
Bonnet described in the utility model has the through hole being connected to friction plate, through hole entry position is provided with the plug screw sealed.
Piston described in the utility model is respectively arranged with 0 RunddichtringO near the inner ring of front case and outer ring, and piston is also provided with 0 RunddichtringO near middle shell position, and position, piston three place is provided with 0 RunddichtringO guiding, more steady in running.
Output shaft described in the utility model is also provided with the shaft block ring moved axially for limiting single-row tapered roller bearing I, output shaft is arranged between single-row tapered roller bearing I, single-row tapered roller bearing II has star seal ring for what seal with front case.
Spacer is provided with between bonnet described in the utility model and friction plate.
The beneficial effects of the utility model are that heavy band parking brake drive unit output shaft is fixed on front case by single-row tapered roller bearing I, single-row tapered roller bearing II; make output shaft on the same axis; operate steadily; transmission efficiency is high; and pulling down bonnet and middle shell, directly can to take down friction plate detachable maintaining convenient, and can not impact output shaft in detachable maintaining process.
accompanying drawing illustrates:
Accompanying drawing 1 is structural representation of the present utility model, in accompanying drawing 1:
1. bonnet, 2. middle shell, 3. front case, 4. piston, 5. single-row tapered roller bearing I, 6. single-row tapered roller bearing II, 7. star seal ring, 8. output shaft, 9. disc spring, 10.O RunddichtringO, 11. static friction sheets, 12. spacers, 13. plug screws, 14. movable friction plates, 15. couple axles, 16. shaft block rings, 17. bolts.
embodiment:
Describe in further detail the utility model by reference to the accompanying drawings, so that the public grasps implementation methods of the present utility model better, the utility model specific embodiment is: described heavy type band parking brake drive unit comprises bonnet 1, middle shell 2, front case 3, piston 4, output shaft 8, disc spring 9, friction plate, couple axle 15, is provided with middle shell 2 between described bonnet 1 and front case 3, bonnet 1, middle shell 2, front case 3 is fixed by bolt 17, and front case 3 two ends adopt single-row tapered roller bearing I 5, output shaft 8 is fixed on front case 3 by single-row tapered roller bearing II 6, the front end of described output shaft 8 is stretched out outside front case 3, the rear end of output shaft 8 extends to bonnet 1 position, described couple axle 15 two ends are provided with spline, described output shaft 8 rear end offers the keyway matched with couple axle 15 two ends spline, one end of couple axle 15 is placed in the keyway of output shaft 8 rear end, described output shaft 8 rear end is provided with friction plate, described friction plate comprises movable friction plate 14 and static friction sheet 11, friction plate one side is near bonnet 1, one end of friction plate another side and piston 4 offsets, disc spring 9 is provided with, described middle shell 2 between the other end of piston 4 and front case 3, front case 3, piston 4 surrounds enclosed space jointly, front case 3 has and middle shell 2, front case 3, piston 4 surrounds the oilhole that confined space communicates jointly.
Described bonnet 1 has the through hole being connected to friction plate, and through hole entry position is provided with the plug screw 13 sealed.
Described piston 4 is respectively arranged with 0 RunddichtringO 10 near the inner ring of front case 3 and outer ring, and piston 4 is also provided with 0 RunddichtringO near middle shell 2 position, and position, piston three place is provided with 0 RunddichtringO guiding, more steady in running.
Described output shaft 8 is also provided with the shaft block ring 16 moved axially for limiting single-row tapered roller bearing I 5, output shaft 8 is arranged between single-row tapered roller bearing I 5, single-row tapered roller bearing II 6 has star seal ring 7 for what seal with front case 3.
Spacer 12 is provided with between described bonnet 1 and friction plate.
The beneficial effects of the utility model are that heavy band parking brake drive unit output shaft 8 is fixed on front case by single-row tapered roller bearing I 5, single-row tapered roller bearing II 6; make output shaft 8 on the same axis; operate steadily; transmission efficiency is high; and pulling down bonnet 1 and middle shell 2, directly can to take down friction plate detachable maintaining convenient, and can not impact output shaft 8 in detachable maintaining process.
Claims (5)
1. heavy band parking brake drive unit, comprise bonnet (1), middle shell (2), front case (3), piston (4), output shaft (8), disc spring (9), friction plate, couple axle (15), it is characterized in that being provided with middle shell (2) between bonnet (1) and front case (3), bonnet (1), middle shell (2), front case (3) is fixed by bolt (17), front case (3) two ends adopt single-row tapered roller bearing I (5), output shaft (8) is fixed on front case (3) by single-row tapered roller bearing II (6), front case (3) outside is stretched out in the front end of described output shaft (8), the rear end of output shaft (8) extends to bonnet (1) position, described couple axle (15) two ends are provided with spline, described output shaft (8) rear end offers the keyway matched with couple axle (15) two ends spline, one end of couple axle (15) is placed in the keyway of output shaft (8) rear end, described output shaft (8) rear end is provided with friction plate, described friction plate comprises movable friction plate (14) and static friction sheet (11), friction plate one side is near bonnet (1), one end of friction plate another side and piston (4) offsets, disc spring (9) is provided with between the other end of piston (4) and front case (3), described middle shell (2), front case (3), piston (4) surrounds enclosed space jointly, front case (3) has and middle shell (2), front case (3), piston (4) surrounds the oilhole that confined space communicates jointly.
2. heavy type band parking brake drive unit according to claim 1, it is characterized in that described bonnet (1) has the through hole being connected to friction plate, through hole entry position is provided with the plug screw (13) sealed.
3. heavy type band parking brake drive unit according to claim 1; it is characterized in that inner ring and the outer ring of the close front case (3) of described piston (4) are respectively arranged with O RunddichtringO (10), piston (4) is also provided with O RunddichtringO near middle shell (2) position.
4. heavy type band parking brake drive unit according to claim 1; it is characterized in that described output shaft (8) being also provided with the shaft block ring (16) moved axially for limiting single-row tapered roller bearing I (5), arranging between the upper single-row tapered roller bearing I (5) of output shaft (8), single-row tapered roller bearing II (6) has star seal ring (7) for what seal with front case (3).
5. heavy type band parking brake drive unit according to claim 1, is characterized in that being provided with spacer (12) between described bonnet (1) and friction plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520147168.5U CN204493512U (en) | 2015-03-16 | 2015-03-16 | Heavy band parking brake drive unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520147168.5U CN204493512U (en) | 2015-03-16 | 2015-03-16 | Heavy band parking brake drive unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204493512U true CN204493512U (en) | 2015-07-22 |
Family
ID=53572832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520147168.5U Expired - Fee Related CN204493512U (en) | 2015-03-16 | 2015-03-16 | Heavy band parking brake drive unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204493512U (en) |
-
2015
- 2015-03-16 CN CN201520147168.5U patent/CN204493512U/en not_active Expired - Fee Related
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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: 20150722 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |