CN201836268U - Automatic clearance compensation piston assembly of drum brake - Google Patents
Automatic clearance compensation piston assembly of drum brake Download PDFInfo
- Publication number
- CN201836268U CN201836268U CN2010205576166U CN201020557616U CN201836268U CN 201836268 U CN201836268 U CN 201836268U CN 2010205576166 U CN2010205576166 U CN 2010205576166U CN 201020557616 U CN201020557616 U CN 201020557616U CN 201836268 U CN201836268 U CN 201836268U
- Authority
- CN
- China
- Prior art keywords
- regulating
- piston assembly
- brake
- regulating ring
- drum brake
- 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 - Lifetime
Links
Landscapes
- Braking Arrangements (AREA)
Abstract
The utility model discloses an automatic clearance compensation piston assembly of a drum brake, which comprises a regulating piston (1) arranged in a piston hole, a regulating nut (2), a regulating ring (3) and a regulating screw rod (4), wherein an elastic device (5) is arranged between the regulating ring (3) and the regulating piston (1) in a compression manner. The elastic device can enable the regulating ring to reliably complete axial movement actions of withdrawal and extension when the automatic clearance compensation piston assembly adjusts brake clearance automatically, enable the regulating nut and the regulating ring to be combined tightly and complete the brake clearance compensation action, and the automatic clearance compensation piston assembly can reliably and automatically adjust the brake clearance of the brake, improve the brake effect of the whole drum brake; furthermore, the structure is simple and the assembly is convenient.
Description
Technical field
The utility model relates to a kind of drum brake, is specifically related to the automatic backlash compensating piston assembly of drum brake.
Background technique
The applicant once developed a kind of braking executive device, comprise push rod assembly, automatic backlash compensating piston assembly and brake shoe assembly, wherein, automatic backlash compensating piston assembly comprises regulating piston, adjusting nut, regulating ring and the adjusting screw rod that is arranged in the piston hole, this regulating ring and adjusting nut are sleeved on the adjusting screw rod, and the surface of contact of regulating ring and adjusting nut is provided with the end face ratchet, pass to brake shoe assembly with the power that push rod assembly is applied by automatic backlash compensating piston assembly, thereby finish the braking of whole device.
Because braking executive device is after the work long period, can produce certain clearance unavoidably between above-mentioned regulating ring and the adjusting nut, thereby cause regulating ring to contact defective tightness with adjusting nut, reduce automatic backlash compensating piston assembly and adjust the precision of brake clearance, thereby reduce the braking effect of whole braking executive device.
The model utility content
The utility model provides a kind of automatic backlash compensating piston assembly of drum brake, and this automatic backlash compensating piston assembly is the gap between Compensation Regulation ring and the adjusting nut automatically, and the brake clearance of break is adjusted precision height, good braking effect.
The utility model is to realize by such technological scheme:
A kind of automatic backlash compensating piston assembly of drum brake comprises the regulating piston, adjusting nut, regulating ring and the adjusting screw rod that are arranged in the piston hole, and compression is provided with elastic device between described regulating ring and the regulating piston.
Because the absorbing buffer capacity of belleville spring is stronger, and the deformation-energy in the per unit volume is bigger, and it is good that described elastic device adopts belleville spring, also can adopt the elastic device of other types certainly as the case may be.
In order to adjust the combination force that compresses between regulating ring and the adjusting nut, be provided with the adjustment packing ring between described regulating ring and the elastic device.
The surface of contact of described regulating ring and adjusting nut is provided with the end face ratchet, finishes the function of automatic compensation brake clearance to realize break in braking process.
The utility model provides a kind of automatic backlash compensating piston assembly of drum brake, it compresses between regulating ring and regulating piston and is provided with elastic device, when this elastic device is adjusted brake clearance automatically at the automatic backlash compensation device, make regulating ring can finish the action that moves axially of returning, stretching out reliably, and the end face ratchet of adjusting nut and regulating ring is combined closely, make the end face ratchet of regulating ring fall into the teeth groove of the adjacent other end ratchet of adjusting nut smoothly reliably, finish the brake clearance compensating movement; In addition, because the setting of elastic device, even automatic backlash compensating piston assembly is after using the long period, when the gap between the end face ratchet of regulating ring and adjusting nut increases, regulating ring also can be adjacent to the end face ratchet of adjusting nut automatically under the effect of elastic device, thereby make whole automatic backlash compensating piston assembly realize that the gap between the end face ratchet of regulating ring and adjusting nut adjusts automatically, the automatic backlash of automatic backlash compensating piston assembly is adjusted the precision height, further improved the braking effect of break, it is simple in structure, and is easy to assembly.
Description of drawings
Fig. 1 is the automatic backlash compensating piston assembly structure chart of drum brake among the utility model embodiment.
Embodiment
In order to be expressly understood the purpose of this utility model, technological scheme and beneficial effect more, below in conjunction with accompanying drawing the utility model is described further, but protection domain of the present utility model is not limited in following examples.
As shown in Figure 1, a kind of automatic backlash compensating piston assembly of drum brake, comprise the regulating piston 1, adjusting nut 2, regulating ring 3 and the adjusting screw rod 4 that are arranged in the piston hole, and the surface of contact of described regulating ring 3 and adjusting nut 2 is provided with end face ratchet 7; Compression is provided with elastic device 5 between described regulating ring 3 and the regulating piston 1; Described elastic device 5 is a belleville spring, and when increasing because of long-term friction gap between regulating ring 3 and the adjusting nut 2, regulating ring 3 is adjacent to adjusting nut 2 automatically under the tension force effect of elastic device 5; Be provided with between described regulating ring 3 and the elastic device 5 and adjust packing ring 6,, make piston assembly can finish the adjustment action of brake clearance reliably with the combination force that compresses between the end face ratchet 7 of adjusting regulating ring 3 and adjusting nut 2.
Claims (4)
1. the automatic backlash compensating piston assembly of a drum brake, comprise the regulating piston (1), adjusting nut (2), regulating ring (3) and the adjusting screw rod (4) that are arranged in the piston hole, it is characterized in that: compression is provided with elastic device (5) between described regulating ring (3) and the regulating piston (1).
2. the automatic backlash compensating piston assembly of drum brake as claimed in claim 1, it is characterized in that: described elastic device (5) is a belleville spring.
3. the automatic backlash compensating piston assembly of drum brake as claimed in claim 1 or 2 is characterized in that: be provided with between described regulating ring (3) and the elastic device (5) and adjust packing ring (6).
4. the automatic backlash compensating piston assembly of drum brake as claimed in claim 3 is characterized in that: described regulating ring (3) is provided with end face ratchet (7) with the surface of contact of adjusting nut (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205576166U CN201836268U (en) | 2010-10-12 | 2010-10-12 | Automatic clearance compensation piston assembly of drum brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205576166U CN201836268U (en) | 2010-10-12 | 2010-10-12 | Automatic clearance compensation piston assembly of drum brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201836268U true CN201836268U (en) | 2011-05-18 |
Family
ID=44006374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205576166U Expired - Lifetime CN201836268U (en) | 2010-10-12 | 2010-10-12 | Automatic clearance compensation piston assembly of drum brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201836268U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10534029B1 (en) | 2018-12-07 | 2020-01-14 | Chicony Power Technology Co., Ltd. | Power conversion apparatus |
-
2010
- 2010-10-12 CN CN2010205576166U patent/CN201836268U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10534029B1 (en) | 2018-12-07 | 2020-01-14 | Chicony Power Technology Co., Ltd. | Power conversion apparatus |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202752053U (en) | Double roll crusher with function of presetting constant spring initial force | |
| CN201836268U (en) | Automatic clearance compensation piston assembly of drum brake | |
| CN202147174U (en) | Fixed pre-stretching device for screw stem | |
| CN104465240A (en) | Closing and opening spring connecting mechanism and adjusting tool of closing and opening spring connecting mechanism | |
| CN201696543U (en) | Damping fixing device | |
| CN203856945U (en) | Motorcycle shock absorber | |
| EP1688636A3 (en) | Vibration damping device and structure comprising such a device | |
| CN201673792U (en) | Positioning and compressing device for coil of dry-type transformer | |
| CN201908840U (en) | Slide valve regulation mechanism and screw compressor with same | |
| EP2733375A3 (en) | Clutch device | |
| CN203670419U (en) | Adjustable bolt locking mechanism | |
| CN205064522U (en) | Adjustable nut of self -adaptation | |
| CN203532670U (en) | Helical-gear anti-backlash gearbox | |
| CN201568555U (en) | Main reducing gear bearing pre-tightening force adjusting device | |
| CN208331050U (en) | A kind of hydraulic disc type brake device | |
| CN102785391A (en) | Height adjusting device | |
| AU2012100676A4 (en) | Fixing Structure for Movable Pin Operating Lever | |
| CN101439395B (en) | Adjustable buffering equipment | |
| CN205876850U (en) | Spacing regulation type buffering hydraulic pressure jar | |
| CN201745572U (en) | Support structure between front shell and back shell of through rod type booster | |
| CN203462255U (en) | Yarn trapper and large screw rod connecting structure | |
| CN202846929U (en) | Oil press reduction gearbox regulator | |
| CN205064614U (en) | Excessive pressure shaft coupling is prevented to manipulator friction -type | |
| CN202220784U (en) | Bolt | |
| CN203076013U (en) | Clearance adjusting device for ring hammer crusher |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110518 |
|
| CX01 | Expiry of patent term |