CN203627616U - Gap self-adjusting mechanism of disc brake - Google Patents
Gap self-adjusting mechanism of disc brake Download PDFInfo
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- CN203627616U CN203627616U CN201320754770.6U CN201320754770U CN203627616U CN 203627616 U CN203627616 U CN 203627616U CN 201320754770 U CN201320754770 U CN 201320754770U CN 203627616 U CN203627616 U CN 203627616U
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- cam lever
- sleeve
- brake
- screwed pipe
- adjusting mechanism
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Abstract
The utility model provides a gap self-adjusting mechanism of a disc brake. The gap self-adjusting mechanism comprises an inner semi-circular bearing, a cam lever, an outer semi-circular bearing and two sets of linkage mechanisms, wherein the inner semi-circular bearing, the cam lever and the outer semi-circular bearing are assembled on an end cover assembly in sequence. The linkage mechanisms are symmetrically assembled on the two sides of the cam lever, and respectively meshed with a main drive gear on the cam lever, and the linkage mechanisms and the main drive gear run synchronously. The gap self-adjusting mechanism of the disc brake has the advantages that the structure is simple, assembling is quite convenient and fast, response is fast, the brake reaction time is short, and traveling is safer; the gap is accurately adjusted, and braking is more sensitive; a torsional spring type overload clutch is arranged, the comfort of a driver during braking can be improved, damage caused when stress is concentrated due to brake reactive force can not be produced on the interior of the brake, the service life of the a brake disc is effectively ensured, a high-precision one-way bearing is adopted in a one-way clutch, procurement is convenient, and repair and maintenance are facilitated.
Description
Technical field
The utility model vehicle brake technology field, refers in particular to a kind of disk brake clearance self-regulating mechanism.
Background technique
The break pattern being applied at present on visitor, lorry mainly comprises: two kinds of drum brake and disk type brakers.Because disk type braker has advantages of compact structure, thermal diffusivity is good, braking is steady, environmental protection, approved by domestic Ge great automobile vendor, city bus solar obligation disk type braker at present, commercial car has also started to apply.
In Disk Brake process, its friction plate and brake disc can wear and tear, and cause its brake clearance to become large, directly affect the braking effect of automobile.Therefore, on disk type braker, just need add clearance self-regulating mechanism, automatically to eliminate the gap producing because of friction catch, make braking more safe and reliable.Can say that automodulation actuation mechanism is exactly the core of disk type braker.There is gap adjusting structure complexity in existing disk type braker, gap adjustment is unstable, working life is short, component required precision is high, high in cost of production problem.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of simple in structure, stable disk type braker self-adjustment structure is provided.
For achieving the above object, technological scheme provided by the utility model is: a kind of disk brake clearance self-regulating mechanism, it includes interior half circular journal bearing, cam lever, outer half circular journal bearing that are assemblied in successively on end cap assembly, it also includes two groups of linking mechanisms, two groups of linking mechanism symmetries are assemblied in cam lever both sides, and the run-in synchronism that is meshed with the main drive gear on cam lever respectively; Described linking mechanism includes adjusting sleeve, unilateral bearing, inner sleeve, and wherein, adjusting sleeve is provided with breach, and finger one end is inserted in the breach of adjusting sleeve, and the other end is connected on cam lever; A unilateral bearing cylindraceous is housed in adjusting sleeve, between unilateral bearing and adjusting sleeve, be interference fit, inner sleeve is housed in unilateral bearing, in inner sleeve, be pressed with rectangular torsional, rectangular torsional external application interference fit is pressed with friction sleeve, and friction sleeve adopts oval hole to coordinate with main screwed pipe corresponding position; Rectangular torsional and friction sleeve and inner sleeve adopt respectively the interference fit of different magnitude of interference.
Described friction sleeve adopts oval hole to coordinate with main screwed pipe corresponding position, and is connected with the screw rod in main screwed pipe by multiple thread, and main screwed pipe is assemblied on end cap assembly by support, and screw rod lower end is connected with push pedal through end cap assembly.
Described screw rod bottom is set with driving gear, and driving gear is meshed and is synchronized with the movement with the driving gear on cam lever.
The utility model has the advantage of: simple in structure, it is very convenient to assemble, rapidly, braking reflecting time is short, drives a vehicle safer in response; Accurate to gap adjustment, brake sensitivity more; Be provided with torsional spring type overload clutch, can improve the travelling comfort of driver in the time of brake, guarantee that brake inside can not cause the concentrated destruction producing of stress because of braking reaction force, brake disc can effectively be guaranteed working life, overrunning clutch adopts high-precision unilateral bearing, purchases conveniently, is convenient to maintenance and maintenance.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model.
Fig. 2 is cam lever of the present utility model and adjusting sleeve work schematic diagram.
Fig. 3 is inner sleeve schematic diagram of the present utility model.
Embodiment
Below in conjunction with institute's drawings attached, the utility model is described in further detail, preferred embodiment of the present utility model is: referring to accompanying drawing 1 to accompanying drawing 3, disk brake clearance self-regulating mechanism described in the present embodiment includes interior half circular journal bearing 1, cam lever 2, outer half circular journal bearing 3 that are assemblied in successively on end cap assembly 7, it also includes two groups of linking mechanisms, two groups of linking mechanism symmetries are assemblied in cam lever 2 both sides, and the run-in synchronism that is meshed with the main drive gear on cam lever 2 respectively; Described linking mechanism includes adjusting sleeve 11, unilateral bearing 12, inner sleeve 13, and wherein, adjusting sleeve 11 is provided with breach, and finger 16 one end are inserted in the breach of adjusting sleeve 11, and the other end is connected on cam lever 2; A unilateral bearing 12 cylindraceous is housed in adjusting sleeve 11, between unilateral bearing 12 and adjusting sleeve 11, it is interference fit, inner sleeve 13 is housed in unilateral bearing 12, in inner sleeve 13, be pressed with rectangular torsional 14, rectangular torsional 14 external application interference fit are pressed with friction sleeve 15, and friction sleeve 15 adopts oval hole to coordinate with main screwed pipe 10 corresponding positions; Rectangular torsional 14 and friction sleeve 15 and inner sleeve 13 adopt respectively the interference fit of different magnitude of interference, friction sleeve 15 adopts oval hole to coordinate with main screwed pipe 10 corresponding positions, and be connected with the screw rod 6 in main screwed pipe 10 by multiple thread, main screwed pipe 10 is assemblied on end cap assembly 7 by support 4, and screw rod 6 lower ends are connected with push pedal 8 through end cap assembly 7.Screw rod 6 bottoms are set with driving gear 9, and driving gear 9 is meshed and is synchronized with the movement with the driving gear on cam lever 2.
When the break of the present embodiment dispatches from the factory, the gap between brake slipper and brake disc is by pre-set, brake disc is braked piece brake completely after, within the scope of the breach of finger in adjusting sleeve, move.But when making after the gap change greatly between brake slipper and brake disc because there is frictional loss between brake slipper and brake disc, when braking brake slipper moved need to continue behind predefined gap to brake disc against time, finger will be stirred adjusting sleeve, adjusting sleeve drives unilateral bearing to rotate together, and drive inner sleeve, Rectangular Spring to rotate together by unilateral bearing, moment of torsion is passed to friction sleeve, and then drive main screwed pipe to rotate, thereby make screw rod produce straight-line displacement, drive push pedal to promote brake slipper and move elimination friction gap.Be pressed in after brake disc when brake slipper pushes up completely, screwed pipe, screw rod linking mechanism axial dimension can not be elongated, and screwed pipe, screw rod linking mechanism inside can not occur relatively to rotate in a circumferential direction, and just make friction sleeve circumferentially static with respect to inner sleeve yet.Now, inner sleeve still can obtain moment of torsion from unilateral bearing, will there is skidding in inside in overload clutch, to put acquisition moment of torsion in eliminating, travelling comfort when raising vehicle driver brakes, and can eliminate braking reaction force and some frictional resistance moments that braking system inside produces, avoid concentrating the destruction producing, the working life of having improved vehicle motor vehicle braking system because of excessive stresses.
Turn back in initial position process at brake slipper, finger is stirred adjusting sleeve, adjusting sleeve counterrotating, and drive unilateral bearing counterrotating.Now, overrunning clutch and inner sleeve are in separated state, overrunning clutch dallies with respect to inner sleeve, thereby screwed pipe, screw rod linking mechanism just can not obtain reactive torque, screwed pipe, the axial dimension of screw rod linking mechanism still remains on the state after elongation, therefore the gap variation occurring because of frictional loss between brake slipper and brake disc has obtained compensation, guarantee that the gap between brake disc and both sides brake slipper remains in predefined size, effectively guarantee the life-span of brake disc, guarantee the sensitivity of break in braking process, guarantee the safety of driving, and compact structure, simply, it is convenient to assemble, long service life, maintenance aspect, adjustment to gap is accurate.
The embodiment of the above is only the preferred embodiment of the utility model, not limits practical range of the present utility model with this, therefore the variation that all shapes according to the utility model, principle are done all should be encompassed in protection domain of the present utility model.
Claims (3)
1. a disk brake clearance self-regulating mechanism, it includes interior half circular journal bearing (1), cam lever (2), outer half circular journal bearing (3) that are assemblied in successively on end cap assembly (7), it is characterized in that: it also includes two groups of linking mechanisms, two groups of linking mechanism symmetries are assemblied in cam lever (2) both sides, and the run-in synchronism that is meshed with the main drive gear on cam lever (2) respectively; Described linking mechanism includes adjusting sleeve (11), unilateral bearing (12), inner sleeve (13), and wherein, adjusting sleeve (11) is provided with breach, and finger (16) one end is inserted in the breach of adjusting sleeve (11), and the other end is connected on cam lever (2); A unilateral bearing cylindraceous (12) is housed in adjusting sleeve (11), between unilateral bearing (12) and adjusting sleeve (11), it is interference fit, inner sleeve (13) is housed in unilateral bearing (12), in inner sleeve (13), be pressed with rectangular torsional (14), rectangular torsional (14) external application interference fit is pressed with friction sleeve (15), and friction sleeve (15) adopts oval hole to coordinate with main screwed pipe (10) corresponding position; Rectangular torsional (14) and friction sleeve (15) and inner sleeve (13) adopt respectively the interference fit of different magnitude of interference.
2. a kind of disk brake clearance self-regulating mechanism according to claim 1, it is characterized in that: friction sleeve (15) adopts oval hole to coordinate with main screwed pipe (10) corresponding position, and be connected with the screw rod (6) in main screwed pipe (10) by multiple thread, it is upper that main screwed pipe (10) is assemblied in end cap assembly (7) by support (4), and screw rod (6) lower end is connected with push pedal (8) through end cap assembly (7).
3. a kind of disk brake clearance self-regulating mechanism according to claim 2, is characterized in that: screw rod (6) bottom is set with driving gear (9), and driving gear (9) is meshed and is synchronized with the movement with the driving gear on cam lever (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320754770.6U CN203627616U (en) | 2013-11-27 | 2013-11-27 | Gap self-adjusting mechanism of disc brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320754770.6U CN203627616U (en) | 2013-11-27 | 2013-11-27 | Gap self-adjusting mechanism of disc brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203627616U true CN203627616U (en) | 2014-06-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320754770.6U Expired - Fee Related CN203627616U (en) | 2013-11-27 | 2013-11-27 | Gap self-adjusting mechanism of disc brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203627616U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104019163A (en) * | 2014-06-28 | 2014-09-03 | 枣庄泰德机械有限公司 | Chassis type automatic brake gap adjusting mechanism of commercial vehicle |
| CN105465248A (en) * | 2015-12-22 | 2016-04-06 | 武汉元丰汽车零部件有限公司 | Brake gap adjusting device and air pressure disc type brake |
| US10975927B2 (en) | 2018-08-17 | 2021-04-13 | Otis Elevator Company | Brake device for elevator and an elevator system |
-
2013
- 2013-11-27 CN CN201320754770.6U patent/CN203627616U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104019163A (en) * | 2014-06-28 | 2014-09-03 | 枣庄泰德机械有限公司 | Chassis type automatic brake gap adjusting mechanism of commercial vehicle |
| CN105465248A (en) * | 2015-12-22 | 2016-04-06 | 武汉元丰汽车零部件有限公司 | Brake gap adjusting device and air pressure disc type brake |
| US10975927B2 (en) | 2018-08-17 | 2021-04-13 | Otis Elevator Company | Brake device for elevator and an elevator system |
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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: 20140604 Termination date: 20201127 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |