CN105402291A - Abrasion displayer for drum brake friction plate - Google Patents
Abrasion displayer for drum brake friction plate Download PDFInfo
- Publication number
- CN105402291A CN105402291A CN201511014077.5A CN201511014077A CN105402291A CN 105402291 A CN105402291 A CN 105402291A CN 201511014077 A CN201511014077 A CN 201511014077A CN 105402291 A CN105402291 A CN 105402291A
- Authority
- CN
- China
- Prior art keywords
- camshaft
- display device
- under casing
- input gear
- abrasion
- 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.)
- Granted
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D66/00—Arrangements for monitoring working conditions, e.g. wear, temperature
- F16D66/02—Apparatus for indicating wear
- F16D66/021—Apparatus for indicating wear using electrical detection or indication means
- F16D66/022—Apparatus for indicating wear using electrical detection or indication means indicating that a lining is worn to minimum allowable thickness
Abstract
The invention provides an abrasion displayer for a drum brake friction plate. The abrasion displayer comprises a fixed indicator arranged on a camshaft support of a brake, an initial installation indicator and an abrasion limit indicator, wherein the initial installation indicator and the abrasion limit indicator are arranged on a camshaft of the brake. When the camshaft is installed, the fixed indicator and the initial installation indicator are located on the same plane; when the brake friction plate is abraded to the outer end surface of the head of a rivet, the abrasion limit indicator and the fixed indicator are located on the same plane. The abrasion displayer has the advantages that use is convenient, the rotation angle of the camshaft namely the abrasion degree of the friction plate can be accurately displayed, when the friction plate is abraded to the outer end surface of the head of the rivet, a pointer of a dial plate rotates to the abrasion limit indicator, and therefore the abrasion degree of the friction plate can be accurately displayed, and the phenomenon that the friction plate is excessively abraded and parts such as the drum brake is damaged or the friction plate is replaced early can be avoided.
Description
This case is divisional application, and the denomination of invention of original application is: a kind of drum type brake friction pad wear display unit, and the applying date of original application is: 2014-02-24, and the application number of original application is: 201410060504.2.
Technical field
The present invention relates to drum type brake technical field, particularly relate to a kind of drum type brake friction pad wear display device.
Background technique
At present, the friction disc wear situation of the medium and heavy commercial car drum brake of most domestic all watches friction disc wear situation by dust-proof cover peep hole, judge whether to need to change by estimation friction plate residual thickness, accurately cannot determine whether friction plate reaches wear limit.So in use, easily occur that friction disc wear is excessive on the one hand, may wear on rivet, and then cause rivet to contact with brake drum, scuffing etc. is caused to brake drum inner friction surface, affect the life-span of braking ability and brake drum; Likely friction plate does not reach wear limit and changes in advance on the other hand, causes waste.
Summary of the invention
The object of the present invention is to provide a kind of drum type brake friction pad wear display device that accurately can show friction plate abrasion degree.
The present invention is realized by following measure: a kind of drum type brake friction pad wear display device, comprise be arranged on described break camshaft stand on fixing sign, the initial installation be arranged on the camshaft of described break indicates and wear limit indicates; Install camshaft time, described fixing sign and described initial install indicate in the same plane; When described brake bush may wear to rivet head exterior edge face, described wear limit indicates with described fixing sign in the same plane.
Described wearing and tearing display device also comprises the pointer display device that can show described camshaft angle of swing.
Described pointer display device comprises under casing and is fixed on the dial plate of described under casing upper surface, described under casing is fixedly connected with the camshaft stand of described break, the camshaft being positioned at the described break of described under casing is fixedly installed input gear, in described dial plate, is provided with the output gear engaged with described input gear and the pointer tightly joined with described output gear;
Described dial plate is provided with scale, and the initial wear limit of installing sign and described brake bush that described scale at least can demonstrate described brake-toggle shaft indicates.
Described input gear is C shape gear, described input gear two ends are provided with retaining ring by connecting bridge, described retaining ring comprises C type ring and is positioned at the locking ear at described C type ring two ends, and described retaining ring is fastened on described camshaft and is also connected with described camshaft by the bolt through described locking ear.
Described under casing comprises front panel, rear sidewall, left side wall and right side wall, and described front panel and described rear sidewall are symmetrically arranged with inverted U breach, and described left side wall and/or described right side wall are provided with the handle hole corresponding with described locking ear position.
Described under casing is provided with fixing ear, and described under casing is connected with described camshaft stand by the bolt through described fixing ear.
The connecting frame of cuboid is provided with between described input gear and described output gear, described connecting frame upper end is provided with through hole, described through hole passes described through hole through the rotating shaft of described output gear, described connecting frame lower end is provided with the ball retainer with ball, and the internal surface of described input gear is provided with the groove used with described ball engagement.
In order to better realize foregoing invention object, present invention also offers a kind of drum type brake friction pad wear display device, comprise be arranged on described break camshaft stand on fixing sign, the initial installation be arranged on the camshaft of described break indicates and wear limit indicates; Install camshaft time, described fixing sign and described initial install indicate in the same plane; When described brake bush may wear to rivet head exterior edge face, described wear limit indicates with described fixing sign in the same plane.
Described wearing and tearing display device also comprises the pointer display device that can show described camshaft angle of swing.Described pointer display device comprises the cam be arranged on described brake-toggle shaft, described brake toggle bracing strut is provided with fixing rod, described fixing rod is provided with the pointer that can rotate, described cam and described pointer contact and described pointer can be stirred;
Described brake toggle bracing strut is provided with scale, and the initial wear limit of installing sign and described brake bush that described scale at least can demonstrate described brake-toggle shaft indicates.
Also torsion spring is provided with between described fixing rod and described pointer; Described torsion spring can drive indicators turn, and sense of rotation is contrary with the direction that described cam stirs described pointer.
Beneficial effect of the present invention is: adopt display device of the present invention, accurately can demonstrate the angle of swing of camshaft and the degree of wear of friction plate, when friction disc wear is to rivet head exterior edge face, pointer turns to wear limit and indicates, accurately can indicate the degree of wear of friction plate like this, avoid occurring friction plate excessive wear and damage the phenomenon of the component such as brake drum or in advance more renewal of facing renewal; Under casing not only plays the effect be fixedly connected with camshaft stand, also plays dust-proof effect; Connecting frame plays the effect of spacing input gear and output gear position relationship; When initial installation camshaft, be arranged on by display list on camshaft and camshaft stand, when camshaft rotates, input gear rotates under the drive of camshaft, input gear drives output gear and pointer to rotate, and pointer indicates the degree of friction disc wear.
Accompanying drawing explanation
Fig. 1 is the structural representation I of the embodiment of the present invention 1.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the structural representation II of the embodiment of the present invention 1.
Fig. 4 is the structural representation of connecting frame in the embodiment of the present invention 1.
Fig. 5 is the structural representation of the embodiment of the present invention 2.
Fig. 6 is the right elevation of Fig. 5.
Wherein, reference character is: 1, handle hole; 2, fixed hole; 3, fixing ear; 4, under casing; 5, scale; 6, dial plate; 7, pointer; 8, output gear; 9, connecting frame; 10, input gear; 11, retaining ring; 12, connecting bridge; 13, bolt; 14, ear is locked; 15, glass outer; 16, U-shaped breach; 17, camshaft; 18, through hole; 19, ball; 20, camshaft stand; 21, pointer; 22, fixing rod; 23, cam; 24, camshaft.
Embodiment
For the technical characterstic of this programme can be clearly demonstrated, below by embodiment, this programme is set forth.
Embodiment 1
Embodiments provide a kind of drum type brake friction pad wear display device, comprise the fixing sign be arranged on the camshaft stand of break, the initial installation be arranged on the camshaft of break indicates and wear limit indicates; When camshaft is installed, fixing indicate with initially install indicate in the same plane; When brake bush may wear to rivet head exterior edge face, wear limit indicate with fixing indicate in the same plane.
See Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the drum type brake friction pad wear display device of the embodiment of the present invention also comprises the pointer display device that can show camshaft angle of swing, comprise under casing 4 and the dial plate 6 being fixed under casing 4 upper surface, the camshaft 17 that under casing 4 is placed in break is fixedly connected with the camshaft stand of break, the camshaft 17 being positioned under casing 4 is fixedly installed input gear 10, in dial plate 6, is provided with the output gear 8 engaged with input gear 10 and the pointer 7 tightly joined with output gear 8; Dial plate 6 is provided with scale, and the initial wear limit of installing sign and brake bush that scale can show or reflect brake-toggle shaft indicates.
Input gear 10 is C shape gear, input gear 10 two ends are provided with retaining ring 11 by connecting bridge 12, retaining ring 11 is positioned at the inside of input gear 10 and concentric with input gear 10, retaining ring 11 comprises C type ring and is positioned at the locking ear 14 at C type ring two ends, and retaining ring 11 is fastened on camshaft 17 also by being connected with the camshaft 17 of break through the locking bolt 13 of ear 14; Under casing 4 comprises front panel, rear sidewall, left side wall and right side wall, and front panel and rear sidewall are symmetrically arranged with the inverted U breach 16 corresponding with camshaft 17 position, left side wall is provided with the handle hole 1 corresponding with locking ear 14 position; The left side wall of under casing 4 and right side wall are symmetrically arranged with the fixing ear 3 with fixed hole 2, under casing 4 is connected with camshaft stand by the bolt through fixed hole 2; The connecting frame 9 of cuboid is provided with between input gear 10 and output gear 8, connecting frame 9 upper end is provided with through hole 18, the rotating shaft of output gear 8 is through through hole 18, connecting frame 9 lower end is provided with the ball retainer with ball 19, the internal surface of input gear 10 be provided with ball 19 with the use of groove.Wherein, ball retainer is prior art, does not repeat them here; Dial plate 6 is provided with glass outer 15.
Rivet head thickness (scope is between 0.8 ~ 1.5mm) and described friction plate rivet hole place thickness (scope is between 3 ~ 4mm) on described brake bush is checked by calculating, calculate the rotation angle of (scope is between 3.8 ~ 5.5mm) camshaft when brake shoe assembly may wear to rivet head exterior edge face, corresponding scale such as wear limit is set on dial plate according to the rotation angle of camshaft and indicates.
When initial installation camshaft 17, under casing 4 of the present invention is placed on the camshaft 17 of camshaft stand, and by bolt, under casing 4 is fixed on camshaft stand, rotate and regulate input gear 10 when pointer 7 points to initial position, screw under casing 4 internal locking ear 14 and input gear 10 is fixed on camshaft 17.Scale 5 on dial plate 6, when being by calculating brake shoe assembly and may wear to rivet head exterior edge face, the rotation angle of camshaft 17 draws.When friction plate weares and teares gradually, camshaft 17 rotates, and drive input gear 10 to rotate, input gear 10 drives output gear 8 and pointer 7 to rotate, and pointer 7 indicates the degree of friction disc wear.
Embodiment 2
See Fig. 5 and Fig. 6, embodiments provide a kind of drum type brake friction pad wear display device, the camshaft stand 20 of break is provided with and fixes sign, the camshaft 24 of break is provided with initial installation and indicates and wear limit sign; When camshaft 24 is installed, fixing indicate with initially install indicate in the same plane; When brake bush may wear to rivet head exterior edge face, wear limit indicate with fixing indicate in the same plane.
The wearing and tearing display device of the embodiment of the present invention also comprises pointer display device, pointer display device comprises the cam 23 be arranged on brake-toggle shaft 24, brake toggle bracing strut 20 is provided with fixing rod 22, fixing rod 22 is provided with the pointer 21 that can rotate, cam 23 contacts with pointer 21 and can stir pointer 21;
Brake toggle bracing strut 20 is provided with scale, and the initial wear limit of installing sign and brake bush that scale at least can demonstrate brake-toggle shaft 24 indicates; Also torsion spring is provided with between fixing rod 22 and pointer 21; Torsion spring can drive pointer 21 to rotate, and sense of rotation is contrary with the direction that cam 23 stirs pointer 21.
Rivet head thickness (scope is between 0.8 ~ 1.5mm) and friction plate rivet hole place thickness (scope is between 3 ~ 4mm) on brake bush is checked by calculating, calculate the rotation angle of (scope is between 3.8 ~ 5.5mm) camshaft when brake shoe assembly may wear to rivet head exterior edge face, calculate according to the rotation angle of camshaft 24 angle of swing that cam 23 stirs pointer 21.
Pointer 21 amplitude of fluctuation of the wearing and tearing display device of the embodiment of the present invention is large, can be perfectly clear and directly see the abrasion condition of friction plate.
The present invention can pass through without the technical characteristics described or adopt existing techniques in realizing; do not repeat them here; certainly; above-mentioned explanation is not limitation of the present invention; the present invention is also not limited in above-mentioned citing; the change that those skilled in the art make in essential scope of the present invention, remodeling, interpolation or replacement, also should belong to protection scope of the present invention.
Claims (7)
1. a drum type brake friction pad wear display device, is characterized in that, comprise be arranged on described break camshaft stand on fixing sign, the initial installation be arranged on the camshaft of described break indicates and wear limit indicates; Install camshaft time, described fixing sign and described initial install indicate in the same plane; When described brake bush may wear to rivet head exterior edge face, described wear limit indicates with described fixing sign in the same plane.
2. drum type brake friction pad wear display device according to claim 1, is characterized in that, also comprise the pointer display device that can show described camshaft angle of swing.
3. drum type brake friction pad wear display device according to claim 2, it is characterized in that, described pointer display device comprises under casing and is fixed on the dial plate of described under casing upper surface, described under casing is fixedly connected with the camshaft stand of described break, the camshaft being positioned at the described break of described under casing is fixedly installed input gear, in described dial plate, is provided with the output gear engaged with described input gear and the pointer tightly joined with described output gear;
Described dial plate is provided with scale, and the initial wear limit of installing sign and described brake bush that described scale at least can demonstrate described brake-toggle shaft indicates.
4. the drum type brake friction pad wear display device according to Claims 2 or 3, it is characterized in that, described input gear is C shape gear, described input gear two ends are provided with retaining ring by connecting bridge, described retaining ring comprises C type ring and is positioned at the locking ear at described C type ring two ends, and described retaining ring is fastened on described camshaft and is also connected with described camshaft by the bolt through described locking ear.
5. the drum type brake friction pad wear display device according to any one of claim 2-4, it is characterized in that, described under casing comprises front panel, rear sidewall, left side wall and right side wall, described front panel and described rear sidewall are symmetrically arranged with inverted U breach, described left side wall and/or described right side wall are provided with the handle hole corresponding with described locking ear position.
6. the drum type brake friction pad wear display device according to any one of claim 2-5, is characterized in that, described under casing is provided with fixing ear, and described under casing is connected with described camshaft stand by the bolt through described fixing ear.
7. the drum type brake friction pad wear display device according to any one of claim 2-6, it is characterized in that, the connecting frame of cuboid is provided with between described input gear and described output gear, described connecting frame upper end is provided with through hole, described through hole passes described through hole through the rotating shaft of described output gear, described connecting frame lower end is provided with the ball retainer with ball, and the internal surface of described input gear is provided with the groove used with described ball engagement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511014077.5A CN105402291B (en) | 2014-02-24 | 2014-02-24 | A kind of drum type brake friction pad wear display |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410060504.2A CN103775546B (en) | 2014-02-24 | 2014-02-24 | A kind of drum type brake friction pad wear display unit |
| CN201511014077.5A CN105402291B (en) | 2014-02-24 | 2014-02-24 | A kind of drum type brake friction pad wear display |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410060504.2A Division CN103775546B (en) | 2014-02-24 | 2014-02-24 | A kind of drum type brake friction pad wear display unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105402291A true CN105402291A (en) | 2016-03-16 |
| CN105402291B CN105402291B (en) | 2017-12-05 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511014077.5A Active CN105402291B (en) | 2014-02-24 | 2014-02-24 | A kind of drum type brake friction pad wear display |
| CN201410060504.2A Active CN103775546B (en) | 2014-02-24 | 2014-02-24 | A kind of drum type brake friction pad wear display unit |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410060504.2A Active CN103775546B (en) | 2014-02-24 | 2014-02-24 | A kind of drum type brake friction pad wear display unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN105402291B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106091887A (en) * | 2016-05-31 | 2016-11-09 | 宝鸡石油机械有限责任公司 | A kind of dish is stopped brake pad device for dynamically detecting |
| CN109382804A (en) * | 2017-08-07 | 2019-02-26 | 株式会社大福 | The workpiece support device of lifting freely |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2379796A (en) * | 1942-10-01 | 1945-07-03 | Chester H Shively | Brake operating mechanism |
| US2522903A (en) * | 1948-02-19 | 1950-09-19 | Roy H Shively | Brake operating and adjusting mechanism |
| DE2754900C2 (en) * | 1977-12-09 | 1986-10-23 | Fried. Krupp Gmbh, 4300 Essen | Disc brake adjustment device |
| WO1993020365A1 (en) * | 1992-03-27 | 1993-10-14 | Robert John Prince | Brake lining wear indicator gauge |
| US5441128A (en) * | 1994-07-22 | 1995-08-15 | Hoyt; Gordon C. | Reference bracket means for brake stroke length adjustment gauge |
| US5477945A (en) * | 1994-04-14 | 1995-12-26 | Bpw Bergische Achsen Kommanditgesellschaft | Drum brake arrangement for vehicle axles |
| US5535854A (en) * | 1992-04-27 | 1996-07-16 | Prince; Robert J. | Brake lining wear indicator gauge |
| CN2612835Y (en) * | 2003-04-11 | 2004-04-21 | 赵必清 | Automobile brake gap automatic regulator having brake gasket abrasion warning device |
| CN1920325A (en) * | 2006-09-15 | 2007-02-28 | 中国第一汽车集团公司 | Mechanical wear indicator for commercial vehicle brake friction lining |
| CN103443497A (en) * | 2011-03-25 | 2013-12-11 | 哈尔德克斯制动产品股份公司 | Drum brake assembly and wear monitoring device for such an assembly |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB477021A (en) * | 1935-03-23 | 1937-12-20 | Ver Eisenbahn Signalwerke Gmbh | Improvements in or relating to devices for use in controlling the speed during braking of vehicles, particularly, although not essentially, railway vehicles |
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2014
- 2014-02-24 CN CN201511014077.5A patent/CN105402291B/en active Active
- 2014-02-24 CN CN201410060504.2A patent/CN103775546B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2379796A (en) * | 1942-10-01 | 1945-07-03 | Chester H Shively | Brake operating mechanism |
| US2522903A (en) * | 1948-02-19 | 1950-09-19 | Roy H Shively | Brake operating and adjusting mechanism |
| DE2754900C2 (en) * | 1977-12-09 | 1986-10-23 | Fried. Krupp Gmbh, 4300 Essen | Disc brake adjustment device |
| WO1993020365A1 (en) * | 1992-03-27 | 1993-10-14 | Robert John Prince | Brake lining wear indicator gauge |
| US5535854A (en) * | 1992-04-27 | 1996-07-16 | Prince; Robert J. | Brake lining wear indicator gauge |
| US5477945A (en) * | 1994-04-14 | 1995-12-26 | Bpw Bergische Achsen Kommanditgesellschaft | Drum brake arrangement for vehicle axles |
| US5441128A (en) * | 1994-07-22 | 1995-08-15 | Hoyt; Gordon C. | Reference bracket means for brake stroke length adjustment gauge |
| CN2612835Y (en) * | 2003-04-11 | 2004-04-21 | 赵必清 | Automobile brake gap automatic regulator having brake gasket abrasion warning device |
| CN1920325A (en) * | 2006-09-15 | 2007-02-28 | 中国第一汽车集团公司 | Mechanical wear indicator for commercial vehicle brake friction lining |
| CN103443497A (en) * | 2011-03-25 | 2013-12-11 | 哈尔德克斯制动产品股份公司 | Drum brake assembly and wear monitoring device for such an assembly |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106091887A (en) * | 2016-05-31 | 2016-11-09 | 宝鸡石油机械有限责任公司 | A kind of dish is stopped brake pad device for dynamically detecting |
| CN106091887B (en) * | 2016-05-31 | 2018-11-06 | 宝鸡石油机械有限责任公司 | A kind of disc brake brake pad device for dynamically detecting |
| CN109382804A (en) * | 2017-08-07 | 2019-02-26 | 株式会社大福 | The workpiece support device of lifting freely |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105402291B (en) | 2017-12-05 |
| CN103775546A (en) | 2014-05-07 |
| CN103775546B (en) | 2016-02-03 |
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