CN103216553B - A kind of automatic adjustment mechanism for gap being applied to air-pressure disc brake - Google Patents
A kind of automatic adjustment mechanism for gap being applied to air-pressure disc brake Download PDFInfo
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- CN103216553B CN103216553B CN201310136089.XA CN201310136089A CN103216553B CN 103216553 B CN103216553 B CN 103216553B CN 201310136089 A CN201310136089 A CN 201310136089A CN 103216553 B CN103216553 B CN 103216553B
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- rotating shaft
- shifting block
- gap
- adjustment mechanism
- automatic adjustment
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Abstract
The invention discloses a kind of automatic adjustment mechanism for gap being applied to air-pressure disc brake, including main modulation mandrel, self-regulated rotating shaft and shifting block cover, described self-regulated rotating shaft is arranged on described main modulation mandrel, is provided with the actuating device of the mutually laminated structure of compression between described self-regulated rotating shaft and described shifting block cover.Described actuating device is made up of spacing pad and rotation pad, is embedded with rotating shaft cover, described spacing pad and rotation pad and is arranged in described rotating shaft cover outside described self-regulated rotating shaft.The present invention to prevent end wear and transmission torque stability improve a lot.The present invention uses technique scheme, has had and be greatly improved in terms of assembly technology, quality control and product reliability.Meanwhile, present configuration is simple, it is ensured that after brake wear, compensation and the brake component automatically of brake clearance bear suitable moment of torsion, thus protect brake parts and smoothly adjust brake clearance amount.<!--1-->
Description
Technical field
The invention belongs to motor vehicle braking systems manufacturing technology field, specifically, relate to a kind of automatic adjustment mechanism for gap being applied to air-pressure disc brake.
Background technology
At present, in motor vehicle braking systems manufacturing technology field, the application of air-pressure disc brake is quite varied, and air-pressure disc brake is as the safety component of motor vehicles, and its effect is particularly important.
Existing motor vehicle braking systems air-pressure disc brake, generally comprises pressure arm, supports seat, push-rod assembly, brake pad, braking clamp body etc..The braking procedure of existing vapour-pressure type disk brake is as follows: is driven by pressure arm and supports the seat axial displacement of generation, thus is advanced brake pad to be pressed against the floating of brake disc band moving caliper from the push-rod assembly coordinated with it and realize braking；
Clearance automatic compensation mechanism mostly it is provided with on existing gas disk brake.The push rod of air-pressure disc brake and the gap width of brake block are referred to as the working clearance, working clearance is preset by the gap of pressure arm shift fork with adjustor moving tooth, and when working clearance value is braking, pressure arm starts with adjustor moving tooth to nibble the displacement that in merga pass adjustor drive adjustment pipe rotation process, push rod advances with support seat from original position to shift fork；After brake pad and brake disc wear, push rod is worth more than the working clearance with the gap of brake pad, now needs to adjust forward the position of push rod.
In prior art, for above-mentioned technical problem, realized by the automatic adjustment mechanism for gap of air-pressure disc brake, but automatic gap adjustment device of the prior art exist following many technical problems:
1, in the automatic adjustment mechanism for gap of prior art air-pressure disc brake, self-regulated rotating shaft drives shifting block cover to rotate with by steel ball or ball, it is achieved self-adjusting；
During automobile braking, the pressure arm shift fork of brake contacts engagement and drives adjustor to rotate with adjustor moving tooth, adjustor drives self-regulated axis of rotation by unilateral bearing, self-regulated rotating shaft drives shifting block cover to rotate by ball, shifting block cover rotates and drives push rod to rotate, if now push rod is not in contact with brake block, shifting block cover will drive push rod relative support seat to rotate, push rod position is made to move forward, realize the wear-compensating of brake block, if push rod contacts with brake block and has certain pressure, the moment causing rotating push-rod is excessive, steel ball between shifting block cover and self-regulated rotating shaft skids and interrupts transmitting moment of torsion.
The form using steel ball in prior art between self-regulated rotating shaft and shifting block cover plays overload protective function when braking torque is excessive；But there is also technological deficiency, when the process of adjustment, steel ball structure easilys lead to steel ball climbing phenomenon and inclined-plane return action, causes excess adjustment, makes brake clearance too small, drags moment and increases, and car load fuel consumption increases.
2, in prior art, the automatic adjustment mechanism for gap of air-pressure disc type brake also uses outer directly by self-regulated rotating shaft and shifting block cover end face or conical surface attachment structure, but these structures have some shortcomings: use self-regulated rotating shaft and shifting block cover end face or conical surface friction structure, after oil enters contact surface, coefficient of friction diminishes, adjustment moment of torsion is less than normal, when causing brake clearance bigger than normal with shifting block cover end face or conical surface serious wear, spring pressure diminishes, frictional force diminishes therewith, cannot realize from conditioning function, causes brake normally to work.
Summary of the invention
The technical problem to be solved is, in the automatic adjustment mechanism for gap of prior art air-pressure disc brake, the mode of steel ball or ball is used to be connected between self-regulated rotating shaft with shifting block cover, when the process of adjustment, steel ball structure easilys lead to steel ball climbing phenomenon and inclined-plane return action, causes excess adjustment, makes brake clearance too small, dragging moment to increase, car load fuel consumption increases；Prior art uses self-regulated rotating shaft and shifting block cover end face or conical surface friction structure, after oil enters contact surface, coefficient of friction diminishes, adjustment moment of torsion is less than normal, when causing brake clearance bigger than normal with shifting block cover end face or conical surface serious wear, spring pressure diminishes, and frictional force diminishes therewith, cannot realize from conditioning function, or cause brake normally to work, etc. technical problem, and provide a kind of automatic adjustment mechanism for gap being applied to air-pressure disc brake.
The technology design of the present invention is, in the automatic mechanism of existing air-pressure disc brake, in order to solve steel ball or roll structure between self-regulated rotating shaft and shifting block cover, steel ball climbing phenomenon and inclined-plane return action, thus cause excess adjustment, make brake clearance too small, drag moment and increase, make car load fuel consumption increase；Or self-regulated rotating shaft is connected with shifting block cover end face or conical surface friction, when causing shifting block cover end face or conical surface serious wear, gap is bigger than normal, or cannot realize from conditioning function, etc. technical problem, and provide a kind of new technology to conceive, present inventive concept is on the basis of existing automatic adjustment mechanism for gap, arrange multiple-piece construction in self-regulated rotating shaft with shifting block cover to be connected, specifically, mutually friction lamellar body structure is set, airtight oil pocket is set inside and outside described lamellar body structure simultaneously and lubricates, stable moment of torsion can be transmitted, thus solve above-mentioned technical problem.
Technical scheme provided by the present invention is, a kind of automatic adjustment mechanism for gap being applied to air-pressure disc brake, including main modulation mandrel, self-regulated rotating shaft and shifting block cover, described self-regulated rotating shaft is arranged on described main modulation mandrel, is provided with the actuating device of the mutually laminated structure of compression between described self-regulated rotating shaft and described shifting block cover.
Described actuating device is made up of spacing pad and rotation pad, is embedded with rotating shaft cover, described spacing pad and rotation pad and is arranged in described rotating shaft cover outside described self-regulated rotating shaft.
Being provided with oil storage hole in described spacing pad, described spacing pad and rotating pad sheet are externally provided with protective cover, and described rotation pad transmits moment of torsion through main modulation mandrel and described spacing pad by friction pair.
Described automatic adjustment mechanism for gap also includes positioning plate assembly, unilateral bearing, unilateral bearing stationary bushing, adjustor, main shifting block, and described main modulation mandrel top couples described positioning plate assembly by rubber blanket and pressing plate.
Being provided with plain washer in described positioning plate assembly, described positioning plate assembly is connected with described unilateral bearing stationary bushing end contact.
Described unilateral bearing stationary bushing and described self-regulated rotating shaft interference fit.
Described self-regulated rotating shaft couples adjustor by described unilateral bearing.
The adjustor spring of taper it is provided with between described positioning plate assembly and described adjustor.
Described main modulation mandrel one end couples described main shifting block by connecting pin, and described connecting pin is arranged in described main shifting block.
Described main shifting block is arranged in described shifting block cover, and described main shifting block slides axially in described shifting block cover, and and described shifting block cover between be provided with shifting block spring.
Use technical scheme provided by the present invention, can effectively solve the problem that the present invention is in the automatic mechanism of existing air-pressure disc brake, in order to solve steel ball or roll structure between self-regulated rotating shaft and shifting block cover, steel ball climbing phenomenon and inclined-plane return action, thus cause excess adjustment, make car load fuel consumption increase；Or self-regulated rotating shaft is connected with shifting block cover end face or conical surface friction, causing shifting block cover end face or conical surface serious wear, gap is bigger than normal, or cannot realize from conditioning function, etc. technical problem；Technical scheme provided by the present invention, wherein rotate pad and transmit moment of torsion through main modulation mandrel and spacing pad by friction pair, have multiple oil storage hole in spacing pad, have outward protective cover, a large amount of lubricating oil can be stored, improve a lot to preventing end wear and transmission torque stability.The present invention uses technique scheme, has had and be greatly improved in terms of assembly technology, quality control and product reliability.Meanwhile, present configuration is simple, it is ensured that after brake wear, compensation and the brake component automatically of brake clearance bear suitable moment of torsion, thus protect brake parts and smoothly adjust brake clearance amount.
Accompanying drawing explanation,
In conjunction with accompanying drawing, the present invention is described further:
Fig. 1 is present configuration schematic diagram；
Wherein, 1 is main modulation mandrel；2 is rubber blanket；3 is pressing plate；4 is positioning plate assembly；5 is adjustor spring；6 is adjustor；7 is unilateral bearing；8 is self-regulated rotating shaft；9 is rotating shaft cover；10 is spacing pad；11 for rotating pad；12 is shifting block cover；13 is shifting block spring；14 is main shifting block；15 is connecting pin；16 is plain washer；17 is unilateral bearing stationary bushing.
Detailed description of the invention
As shown in Figure 1, a kind of automatic adjustment mechanism for gap being applied to air-pressure disc brake provided by the present invention, including main modulation mandrel 1, self-regulated rotating shaft 8 and shifting block cover 12, described self-regulated rotating shaft 8 is arranged on described main modulation mandrel 1, is provided with the actuating device of the mutually laminated structure of compression between described self-regulated rotating shaft 8 and described shifting block cover 12.Described actuating device is made up of spacing pad 10 and rotation pad 11, is embedded with rotating shaft cover 9 outside described self-regulated rotating shaft 8, and described spacing pad 10 and rotation pad 11 are arranged in described rotating shaft cover 9.
A kind of multiple-piece guiding mechanism being applied to air-pressure disc brake of the present invention, including main modulation mandrel 1, rubber blanket 2, pressing plate 3, positioning plate assembly 4, adjustor spring 5, adjustor 6, unilateral bearing 7, self-regulated rotating shaft 8, rotating shaft cover 9, spacing pad 10, rotate pad 11, shifting block cover 12, shifting block spring 13, main shifting block 14, connecting pin 15, plain washer 16, unilateral bearing stationary bushing 17；Wherein main modulation mandrel 1 top couples positioning plate assembly 4 by rubber blanket 2 and pressing plate 3, be provided with in positioning plate assembly 4 plain washer 16 and with unilateral bearing stationary bushing 17 end contact, unilateral bearing stationary bushing 17 and self-regulated rotating shaft 8 interference fit are to limit unilateral bearing 7 axially-movable, self-regulated rotating shaft 8 couples adjustor 6 by unilateral bearing 7, the adjustor spring 5 of taper it is provided with between positioning plate assembly 4 and adjustor 6, main modulation mandrel 1 other end couples main shifting block 14 connecting pin 15 by connecting pin 15 and is placed in main shifting block 14, main shifting block 14 can slide axially in being placed in shifting block cover 12, and and shifting block cover 12 between be provided with shifting block spring 13, self-regulated rotating shaft 8 outer rotating shaft cover 9, spacing pad 10 is placed in rotating shaft cover 9；Rotating pad 11 and transmit moment of torsion through main modulation mandrel 1 and spacing pad 10 by friction pair, the pressure arm of parts of tooth and brake that this multiple-piece guiding mechanism is mainly adjusted by device 6 has engaged gap automatic regulating function；Self-regulated rotating shaft 8 outer rotating shaft cover 9, spacing pad 10 is placed in rotating shaft cover 9；Rotate pad 11 and transmit moment of torsion through main modulation mandrel 1 and spacing pad 10 by friction pair；There is multiple oil storage hole in spacing shim 10, have outward protective cover, a large amount of lubricating oil can be stored, improve a lot to preventing end wear and transmission moment stability.The present invention uses technique scheme, has had and be greatly improved in terms of assembly technology, quality control and product reliability.Meanwhile, present configuration is simple, it is ensured that after brake wear, compensation and the brake component automatically of brake clearance bear suitable moment of torsion, thus protect brake parts and smoothly adjust brake clearance amount.
Claims (8)
1. the automatic adjustment mechanism for gap being applied to air-pressure disc brake, including main modulation mandrel (1), self-regulated rotating shaft (8) and shifting block cover (12), described self-regulated rotating shaft (8) is arranged on described main modulation mandrel (1), it is characterized in that, between described self-regulated rotating shaft (8) and described shifting block cover (12), be provided with the actuating device of the mutually laminated structure of compression；Described laminated structure is the lamellar body structure that mutually rubs；Described actuating device is made up of spacing pad (10) and rotation pad (11), is embedded with rotating shaft cover (9), described spacing pad (10) and rotation pad (11) and is arranged in described rotating shaft cover (9) outside described self-regulated rotating shaft (8)；Being provided with oil storage hole in described spacing pad (10), described spacing pad (10) and described rotation pad (11) are externally provided with protective cover, and described rotation pad (11) transmits moment of torsion through main modulation mandrel (1) and described spacing pad (10) by friction pair.
A kind of automatic adjustment mechanism for gap being applied to air-pressure disc brake the most according to claim 1, it is characterized in that, described automatic adjustment mechanism for gap also includes positioning plate assembly (4), unilateral bearing (7), unilateral bearing stationary bushing (17), adjustor (6), main shifting block (14), and described main modulation mandrel (1) top couples described positioning plate assembly (4) by rubber blanket (2) and pressing plate (3).
A kind of automatic adjustment mechanism for gap being applied to air-pressure disc brake the most according to claim 2, it is characterized in that, being provided with plain washer (16) in described positioning plate assembly (4), described positioning plate assembly (4) is connected with described unilateral bearing stationary bushing (17) end contact.
A kind of automatic adjustment mechanism for gap being applied to air-pressure disc brake the most according to claim 3, it is characterised in that described unilateral bearing stationary bushing (17) and described self-regulated rotating shaft (8) interference fit.
A kind of automatic adjustment mechanism for gap being applied to air-pressure disc brake the most according to claim 4, it is characterised in that described self-regulated rotating shaft (8) couples adjustor (6) by described unilateral bearing (7).
A kind of automatic adjustment mechanism for gap being applied to air-pressure disc brake the most according to claim 5, it is characterised in that be provided with the adjustor spring (5) of taper between described positioning plate assembly (4) and described adjustor (6).
A kind of automatic adjustment mechanism for gap being applied to air-pressure disc brake the most according to claim 6, it is characterized in that, described main modulation mandrel (1) one end couples described main shifting block (14) by connecting pin (15), and described connecting pin (15) is arranged in described main shifting block (14).
A kind of automatic adjustment mechanism for gap being applied to air-pressure disc brake the most according to claim 7, it is characterized in that, described main shifting block (14) is arranged in described shifting block cover (12), described main shifting block (14) slides axially in described shifting block cover (12), and and described shifting block cover (12) between be provided with shifting block spring (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310136089.XA CN103216553B (en) | 2013-04-18 | 2013-04-18 | A kind of automatic adjustment mechanism for gap being applied to air-pressure disc brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310136089.XA CN103216553B (en) | 2013-04-18 | 2013-04-18 | A kind of automatic adjustment mechanism for gap being applied to air-pressure disc brake |
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| Publication Number | Publication Date |
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| CN103216553A CN103216553A (en) | 2013-07-24 |
| CN103216553B true CN103216553B (en) | 2016-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310136089.XA Active CN103216553B (en) | 2013-04-18 | 2013-04-18 | A kind of automatic adjustment mechanism for gap being applied to air-pressure disc brake |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485224B (en) * | 2016-01-14 | 2017-08-01 | 枣庄泰德机械有限公司 | Brake clearance automatic mechanism assembly |
| DE102016105611B4 (en) * | 2016-03-24 | 2023-08-17 | Bpw Bergische Achsen Kg | Adjusting device for a vehicle disc brake and cardanic pivot bearing and coupling ring for this |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5325949A (en) * | 1991-07-25 | 1994-07-05 | Ti Interlock Limited | Brake or clutch unit wear adjustment means |
| US5520267A (en) * | 1992-05-05 | 1996-05-28 | Lucas Industries Public Limited Company | Actuating device with automatic readjustment of disc brakes, especially for trucks and buses |
| CN2747408Y (en) * | 2004-05-26 | 2005-12-21 | 段昌金 | Automatic adjustment system |
| EP1820992B1 (en) * | 2006-02-20 | 2011-04-06 | BPW Bergische Achsen KG | Wheel brake and pressure plate for wheel brake |
| CN102384191A (en) * | 2011-07-06 | 2012-03-21 | 隆中控股集团有限公司 | Regulator of clearance self-regulating mechanism in automobile disc brake |
| CN202628896U (en) * | 2012-06-01 | 2012-12-26 | 芜湖伯特利汽车安全系统有限公司 | Clearance self-adjustment and overload protection mechanism applied to air pressure disc brake |
| CN203257949U (en) * | 2013-04-18 | 2013-10-30 | 芜湖伯特利汽车安全系统有限公司 | Automatic gap adjusting mechanism applied to air disc brake |
-
2013
- 2013-04-18 CN CN201310136089.XA patent/CN103216553B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5325949A (en) * | 1991-07-25 | 1994-07-05 | Ti Interlock Limited | Brake or clutch unit wear adjustment means |
| US5520267A (en) * | 1992-05-05 | 1996-05-28 | Lucas Industries Public Limited Company | Actuating device with automatic readjustment of disc brakes, especially for trucks and buses |
| CN2747408Y (en) * | 2004-05-26 | 2005-12-21 | 段昌金 | Automatic adjustment system |
| EP1820992B1 (en) * | 2006-02-20 | 2011-04-06 | BPW Bergische Achsen KG | Wheel brake and pressure plate for wheel brake |
| CN102384191A (en) * | 2011-07-06 | 2012-03-21 | 隆中控股集团有限公司 | Regulator of clearance self-regulating mechanism in automobile disc brake |
| CN202628896U (en) * | 2012-06-01 | 2012-12-26 | 芜湖伯特利汽车安全系统有限公司 | Clearance self-adjustment and overload protection mechanism applied to air pressure disc brake |
| CN203257949U (en) * | 2013-04-18 | 2013-10-30 | 芜湖伯特利汽车安全系统有限公司 | Automatic gap adjusting mechanism applied to air disc brake |
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| CN103216553A (en) | 2013-07-24 |
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Address after: 241009 Wuhu economic and Technological Development Zone, Anhui, No. 19 Taishan Road Applicant after: WUHU BOTELI AUTOMOBILE SAFETY SYSTEM CO., LTD. Address before: 241009 Wuhu economic and Technological Development Zone, Anhui, No. 19 Taishan Road Applicant before: Wuhu Bethel Automotive Secure Systems Ltd. |
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Effective date of registration: 20160906 Address after: 063500 economic and Technological Development Zone, West Ring Road, Luannan County, Hebei, Tangshan City Patentee after: Tangshan Bethel Automotive Safety System Co., Ltd. Address before: 241009 Wuhu economic and Technological Development Zone, Anhui, No. 19 Taishan Road Patentee before: WUHU BOTELI AUTOMOBILE SAFETY SYSTEM CO., LTD. |