CN107606004A - A kind of abrasion alarm mechanism for drum brake assembly - Google Patents
A kind of abrasion alarm mechanism for drum brake assembly Download PDFInfo
- Publication number
- CN107606004A CN107606004A CN201711119308.8A CN201711119308A CN107606004A CN 107606004 A CN107606004 A CN 107606004A CN 201711119308 A CN201711119308 A CN 201711119308A CN 107606004 A CN107606004 A CN 107606004A
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- China
- Prior art keywords
- metab
- hole
- wire
- friction plate
- alarm mechanism
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Abstract
The invention provides a kind of abrasion alarm mechanism for drum brake assembly, including coaxially offer the metab of ladder through hole, the wire being arranged in metab and the thermosetting plastics cap for wire one end being fixed on metab；Wire be bent into it is U-shaped be arranged in thermosetting plastics cap and be fixed on metab carry externally threaded end；The screwed hole and counter sink for fixing metab are processed on brake-shoe, friction plate center is machined with the through hole to be alignd with screwed hole axle center and is riveted on the brake-shoe end face relative with counter sink；Thermosetting plastics cap is placed in the through hole of friction plate and the slightly below upper surface of friction plate.The present invention solves the problems, such as the problem of friction plate causes brake drum to damage and cause waste of material because changing in advance because of excessive wear, sound, Guang Deng signal alarms mechanism can also be connected simultaneously, driver's more renewal of facing renewal is reminded in time, improves the operating efficiency of driver.
Description
Technical field
The present invention relates to a kind of drum brake assembly field, and in particular to a kind of abrasion alarm of drum brake assembly
Mechanism.
Background technology
At present, the abrasion condition of the medium and heavy commercial car drum brake of most domestic is watched by dust cover peep hole
Friction disc wear situation, during vehicle use, it is often necessary to which driver is by visually inspecting friction plate at dust cover peep hole
Residual thickness judges whether to need to change, therefore can not quick and precisely determine whether friction plate reaches the limit of wear, so exists
During vehicle use, in fact it could happen that friction plate excessive wear, cause rivet and brake drum to contact friction, and then in brake drum
Rubbing surface causes the infringement such as scuffing, have impact on the braking ability of brake and the service life of brake drum, is also possible that simultaneously
Because friction plate excessive wear causes stopping power to decay or lose so as to trigger traffic accident；Friction plate may also occur not reach
Situation about being changed in advance to the limit of wear, causes friction plate material to waste.In addition, driver needs often to get off inspection, this
The working strength of driver is also increased to a certain extent.
The content of the invention
It is an object of the invention to provide a kind of drum-like brake structure with limit of wear alarm mechanism, it is intended that is
Solve the problems, such as that friction plate causes brake drum to damage or change in advance and cause waste of material because of excessive wear.
The present invention uses following technical scheme：A kind of abrasion alarm mechanism for drum brake assembly, including it is coaxial
Offer the metab of ladder through hole, the wire being arranged in the metab and for described wire one end to be fixed
Thermosetting plastics cap on the metab, the wire other end connect a connection-peg；
Described metab one end is provided with external screw thread, and the metab other end is provided with hexagonal end；
The wire, which is bent into, U-shaped passes the ladder through hole into thermosetting plastics cap and by the thermosetting plastics
Cap is fixed on the metab and carries externally threaded end；
The drum brake assembly mainly includes brake-shoe and friction plate, is processed on the brake-shoe for fixing the gold
Belong to the screwed hole and counter sink of base, the external thread part of the metab is threadedly coupled with the screwed hole, the friction plate
Center is machined with the through hole to be alignd with the screwed hole axle center, the friction plate by rivet the brake-shoe with it is described
On the relative end face of counter sink；
The thermosetting plastics cap is placed in the through hole of the friction plate and the upper surface of slightly below described friction plate.
The thermosetting plastics cap is higher by the metab upper surface 2mm~5mm, is placed in the thermosetting plastics cap
The termination of the wire in portion is higher by the 10~15mm of metab upper surface.
The screwed hole and the counter sink are located on the outside of the gusset of the brake-shoe and at dust cover；The countersunk head
The bottom surface in hole is 7mm away from the height between the brake-shoe and the friction plate binding face.
The through-hole diameter of the friction plate is more bigger than the thermosetting plastics cap size.
The abrasion alarm mechanism also includes limit assembly, the limit assembly include rubber stopper body, holding seat and
Connect the rubber stopper body and keep the connecting line of seat, offer on the dust cover of the drum brake wire punched out and
Seat fixing hole is kept, the rubber stopper body is arranged in the wire punched out, and the holding seat is filled in the holding seat and consolidated
Determine in hole；Central through hole is offered on the rubber stopper body, limiting stand is provided with the wire, the limiting stand includes set
The cylindrical portion being located on the wire and the boss for being arranged on the cylindrical portion both ends, the cylindrical portion are fastened on the center and led to
At hole, two boss are located at rubber stopper both sides respectively.
The wire punched out and the holding seat fixing hole are all slightly larger than abrasion alarm mechanism head and connection-peg foreign steamer
Wide size, in order to dismount wear alarm device head.
The limiting stand is quality of rubber materials.
The beneficial effects of the invention are as follows：The present invention does not change to drum brake body, only to brake-shoe, friction
Piece and dust cover are processed it is achieved that strong applicability；The present invention can be prevented effectively after friction plate excessive wear to system
The damage of drum is moved, is prevented after friction plate excessive wear to the adverse effect of vehicle safety；The present invention can also be with sound, light
Connected Deng signal alarm mechanism, make driver's i.e. discernable alarm signal in driver's cabin, remind driver to be changed in time
Friction plate, reduce the labor intensity of driver.
Brief description of the drawings
Fig. 1 is brake shoe assembly structural representation of the present invention.
Fig. 2 is present invention abrasion alarm mechanism schematic diagram.
Fig. 3 is the structural representation of thermosetting plastics cap of the present invention and metab.
Fig. 4 is dust cover structure schematic diagram of the present invention.
Fig. 5 is rubber plug structure schematic diagram of the present invention.
Fig. 6 is rubber stopper of the present invention and dust cover assembling schematic diagram.
Fig. 7 is present invention abrasion alarm mechanism and brake-shoe, dust cover attaching structure schematic diagram.
Wherein, reference is：Wherein, 1- brake shoe assemblies, 1a- brake-shoes, 1b- friction plates, 1c- rivets, 2- are dust-proof
Cover, 3- abrasions alarm mechanism, 3a- metabs, 3b- thermosetting plasticses cap, 3c- wires, 3d- connection-pegs, 3e- limiting stands, 4-
Rubber stopper, 4a- rubber stoppers body, 4b- keep seat, 4c- connecting lines.
Embodiment
In order to more clearly illustrate the technical characterstic of this programme, below by embodiment, this programme is carried out
Illustrate.
As shown in Figures 2 and 3, the present invention uses following technical scheme：A kind of abrasion report for drum brake assembly
Alert mechanism, including coaxially offer the metab 3a of ladder through hole, the wire 3c being arranged in metab 3a and be used for
Thermosetting plastics cap 3b, wire the 3c other end wire 3c one end being fixed on metab 3a connect a connection-peg 3d；
Metab 3a one end is provided with external screw thread, and the metab 3a other ends are provided with hexagonal end；
Wire 3c is bent into the U-shaped ladder through hole that passes and enters in thermosetting plastics cap 3b and fixed by thermosetting plastics cap 3b
Externally threaded end is carried in metab 3a；
As shown in Figure 1 and Figure 7, drum brake assembly 1 mainly includes brake-shoe 1a and friction plate 1b, is processed on brake-shoe 1a
For fixing metab 3a screwed hole and counter sink, metab 3a external thread part is threadedly coupled with screwed hole, friction
Piece 1b centers are machined with the through hole to be alignd with screwed hole axle center, and friction plate 1b is riveted on the brake-shoe 1a with sinking by rivet 1c
On the relative end face of head bore；
The thermosetting plastics cap 3b is placed in friction plate 1b through hole and slightly below friction plate 1b upper surface.
Thermosetting plastics cap 3b is higher by metab 3a upper surface 2mm~5mm, is placed in leading inside thermosetting plastics cap 3b
Line 3c termination is higher by metab 3a 10~15mm of upper surface.
As shown in figure 4, the screwed hole and the counter sink are located on the outside of brake-shoe 1a gusset and close to dust cover 2
Place；The bottom surface of the counter sink is 7mm away from the height between brake-shoe 1a and friction plate 1b binding faces.
Friction plate 1b through-hole diameter is more bigger than thermosetting plastic cap 3b sizes.
As shown in Figure 5 and Figure 6, abrasion alarm mechanism 3 also includes limit assembly, and limit assembly is included by rubber stopper body 4a
With the rubber stopper 4 and the connection rubber stopper body 4a and connecting line 4c for keeping seat 4b for keeping seat 4b to form, drum brake
Wire 3c punched out is offered on dust cover 2 and keeps seat fixing hole, rubber stopper body 4a is arranged in wire 3c punched out, is protected
A 4b is held to fill in holding seat fixing hole；Central through hole is offered on rubber stopper body 4a, limiting stand 3e is provided with wire 3c,
Limiting stand 3e includes the cylindrical portion being set on wire 3c and the boss for being arranged on cylindrical portion both ends, and cylindrical portion is fastened on center and led to
At hole, both ends boss is located at the both sides of rubber stopper 4 respectively.
The wire punched out and the holding seat fixing hole are all slightly larger than abrasion alarm mechanism head and connection-peg foreign steamer
Wide size, in order to dismount wear alarm device head.
The course of work of the present invention：
Original state：The mechanism is "on" position.
State of wear：During operator brake, brake drum contacts close to brake-shoe 1a and with friction plate 1b gradually, when being arranged on
After friction plate 1b on brake-shoe 1a may wear to calculating size, the thermosetting plastics cap 3b ends in friction plate 1b centers hole position
Friction is contacted with brake drum, because thermosetting plastics cap 3b and the wire 3c strengths of materials and hardness are far below brake drum, so working as
During the brake drum wear that wire 3c is rotated, brake drum abrasion still without exception, when wire 3c is not yet rubbed completely, abrasion alarm
Mechanism is still "on" position.
Alarm condition：With the continuous feeding of brake drum, the wire 3c being fixed in thermosetting plastics cap 3b is worn disconnected
Split, abrasion alarm mechanism is powered off and alarmed, and now alarm signal is informed driver by system, reminds driver to carry out friction plate 1b
Check and change.
The present invention makes driver at any time can be with the change of perceived friction piece, no by wearing the alarm of alarm mechanism
Only avoid friction plate causes brake drum to damage because of excessive wear, and it also avoid causing material because shifting to an earlier date more renewal of facing renewal
The problem of material wastes, while the operating efficiency of driver is also improved, the generation to avoid traffic accident.
Technical characteristic of the invention without description can be realized by or using prior art, will not be repeated here, certainly,
It is limitation of the present invention that described above, which is not, and the present invention is also not limited to the example above, the ordinary skill of the art
The variations, modifications, additions or substitutions that personnel are made in the essential scope of the present invention, it should also belong to the protection model of the present invention
Enclose.
Claims (7)
1. a kind of abrasion alarm mechanism for drum brake assembly, it is characterised in that offer ladder insertion including coaxial
The metab in hole, the wire being arranged in the metab and for described wire one end to be fixed on into the metab
On thermosetting plastics cap, the wire other end connects a connection-peg；
Described metab one end is provided with external screw thread, and the metab other end is provided with hexagonal end；
The wire, which is bent into, U-shaped passes the ladder through hole into thermosetting plastics cap and by the thermosetting plastics
Cap is fixed on the metab and carries externally threaded end；
The drum brake assembly mainly includes brake-shoe and friction plate, is processed on the brake-shoe for fixing the gold
Belong to the screwed hole and counter sink of base, the external thread part of the metab is threadedly coupled with the screwed hole, the friction plate
Center is machined with the through hole to be alignd with the screwed hole axle center；
The thermosetting plastics cap is placed in the through hole of the friction plate and the upper surface of slightly below described friction plate.
2. the abrasion alarm mechanism according to claim 1 for drum brake assembly, it is characterised in that the thermosetting
Property plastic cap is higher by the metab upper surface 2mm~5mm, the end for the wire being placed in inside the thermosetting plastics cap
Head height goes out the 10~15mm of metab upper surface.
3. the abrasion alarm mechanism for drum brake assembly according to claim any one of 1-2, it is characterised in that
The screwed hole and the counter sink are located on the outside of the gusset of the brake-shoe and at dust cover；The bottom surface of the counter sink
It is 7mm away from the height between the brake-shoe and the friction plate binding face.
4. the abrasion alarm mechanism for drum brake assembly according to claim any one of 1-3, it is characterised in that
The through-hole diameter of the friction plate is more bigger than the thermosetting plastics cap size.
5. the abrasion alarm mechanism for drum brake assembly according to claim any one of 1-4, it is characterised in that
Also include limit assembly, the limit assembly includes rubber stopper body, keeps seat and the connection rubber stopper body and holding
The connecting line of seat, wire punched out is offered on the dust cover of the drum brake and keeps seat fixing hole, the rubber stopper
Body is arranged in the wire punched out, and the holding seat is filled in the holding seat fixing hole；On the rubber stopper body
Central through hole is offered, limiting stand is provided with the wire, the limiting stand includes the cylindrical portion being set on the wire
With the boss for being arranged on the cylindrical portion both ends, the cylindrical portion is fastened at the central through hole, two boss difference
Positioned at rubber stopper both sides.
6. the abrasion alarm mechanism for drum brake assembly according to claim any one of 1-5, it is characterised in that
The wire punched out and the holding seat fixing hole are all slightly larger than abrasion alarm mechanism head and connection-peg outer profile size.
7. the abrasion alarm mechanism for drum brake assembly according to claim any one of 1-6, it is characterised in that
The limiting stand is quality of rubber materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711119308.8A CN107606004A (en) | 2017-11-14 | 2017-11-14 | A kind of abrasion alarm mechanism for drum brake assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711119308.8A CN107606004A (en) | 2017-11-14 | 2017-11-14 | A kind of abrasion alarm mechanism for drum brake assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107606004A true CN107606004A (en) | 2018-01-19 |
Family
ID=61086495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711119308.8A Pending CN107606004A (en) | 2017-11-14 | 2017-11-14 | A kind of abrasion alarm mechanism for drum brake assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107606004A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111998019A (en) * | 2020-09-27 | 2020-11-27 | 唐荣富 | Tread brake device convenient to wearing and tearing discernment |
Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4183012A (en) * | 1977-08-02 | 1980-01-08 | Sumitomo Electric Industries, Ltd. | Abrasion alarm device for disk brake |
| US4201974A (en) * | 1977-08-29 | 1980-05-06 | Jumpak Products Inc. | Brake apparatus with air actuated remote wear indicator |
| EP0140241A1 (en) * | 1983-10-14 | 1985-05-08 | LUCAS INDUSTRIES public limited company | Drum brake with conductor for indicating wear |
| DE3917125A1 (en) * | 1989-05-26 | 1990-11-29 | Teves Gmbh Alfred | PARTIAL PAD DISC BRAKE |
| DE69400448D1 (en) * | 1993-02-08 | 1996-10-10 | Sumitomo Wiring Systems | Pad wear sensor and method for its production |
| JPH10309913A (en) * | 1997-05-12 | 1998-11-24 | Fujio Inoue | Chassis having power relay mechanism, tire embedded with heating element, and heating element built in tire |
| US6033261A (en) * | 1993-06-14 | 2000-03-07 | Sumitomo Wiring Systems, Ltd. | Rubber plug for waterproof connector |
| JP2001013555A (en) * | 1999-06-25 | 2001-01-19 | Olympus Optical Co Ltd | Flashing device |
| GB2355291A (en) * | 1997-05-27 | 2001-04-18 | Sanford Acquisition Company | Brake wear sensor system with mounting clip |
| DE202004000580U1 (en) * | 2004-01-16 | 2004-04-08 | Cherkasky, Yakiv, Dipl.-Ing. | Signaling system for warning vehicle driver of critical wear of brake shoes in drum brake has electric wires put under tension by separation of brake shoes and incorporating switch opening under tension |
| CN201285297Y (en) * | 2008-08-29 | 2009-08-05 | 重庆前卫仪表厂 | Embedded valve gas meter |
| CN202001534U (en) * | 2011-01-28 | 2011-10-05 | 石家庄五龙制动器股份有限公司 | Brake shoe abrasion monitoring switch |
| CN102287461A (en) * | 2011-07-29 | 2011-12-21 | 安徽江淮汽车股份有限公司 | Brake shoe with abrasion alarming mechanism |
| CN203130872U (en) * | 2013-02-04 | 2013-08-14 | 湖北华夏弘景车桥股份有限公司 | Brake structure |
| CN204041799U (en) * | 2014-08-12 | 2014-12-24 | 山东泰丰制动系统科技股份有限公司 | A kind of automobile brake friction plate thickness automatic Testing Alarm System |
| CN105024331A (en) * | 2014-04-29 | 2015-11-04 | 张伟 | Anti-slip pre-twisted damping type spacer |
| CN207378011U (en) * | 2017-11-14 | 2018-05-18 | 中国重汽集团济南动力有限公司 | A kind of abrasion alarm mechanism for drum brake assembly |
-
2017
- 2017-11-14 CN CN201711119308.8A patent/CN107606004A/en active Pending
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4183012A (en) * | 1977-08-02 | 1980-01-08 | Sumitomo Electric Industries, Ltd. | Abrasion alarm device for disk brake |
| US4201974A (en) * | 1977-08-29 | 1980-05-06 | Jumpak Products Inc. | Brake apparatus with air actuated remote wear indicator |
| EP0140241A1 (en) * | 1983-10-14 | 1985-05-08 | LUCAS INDUSTRIES public limited company | Drum brake with conductor for indicating wear |
| DE3917125A1 (en) * | 1989-05-26 | 1990-11-29 | Teves Gmbh Alfred | PARTIAL PAD DISC BRAKE |
| DE69400448D1 (en) * | 1993-02-08 | 1996-10-10 | Sumitomo Wiring Systems | Pad wear sensor and method for its production |
| US6033261A (en) * | 1993-06-14 | 2000-03-07 | Sumitomo Wiring Systems, Ltd. | Rubber plug for waterproof connector |
| JPH10309913A (en) * | 1997-05-12 | 1998-11-24 | Fujio Inoue | Chassis having power relay mechanism, tire embedded with heating element, and heating element built in tire |
| GB2355291A (en) * | 1997-05-27 | 2001-04-18 | Sanford Acquisition Company | Brake wear sensor system with mounting clip |
| JP2001013555A (en) * | 1999-06-25 | 2001-01-19 | Olympus Optical Co Ltd | Flashing device |
| DE202004000580U1 (en) * | 2004-01-16 | 2004-04-08 | Cherkasky, Yakiv, Dipl.-Ing. | Signaling system for warning vehicle driver of critical wear of brake shoes in drum brake has electric wires put under tension by separation of brake shoes and incorporating switch opening under tension |
| CN201285297Y (en) * | 2008-08-29 | 2009-08-05 | 重庆前卫仪表厂 | Embedded valve gas meter |
| CN202001534U (en) * | 2011-01-28 | 2011-10-05 | 石家庄五龙制动器股份有限公司 | Brake shoe abrasion monitoring switch |
| CN102287461A (en) * | 2011-07-29 | 2011-12-21 | 安徽江淮汽车股份有限公司 | Brake shoe with abrasion alarming mechanism |
| CN203130872U (en) * | 2013-02-04 | 2013-08-14 | 湖北华夏弘景车桥股份有限公司 | Brake structure |
| CN105024331A (en) * | 2014-04-29 | 2015-11-04 | 张伟 | Anti-slip pre-twisted damping type spacer |
| CN204041799U (en) * | 2014-08-12 | 2014-12-24 | 山东泰丰制动系统科技股份有限公司 | A kind of automobile brake friction plate thickness automatic Testing Alarm System |
| CN207378011U (en) * | 2017-11-14 | 2018-05-18 | 中国重汽集团济南动力有限公司 | A kind of abrasion alarm mechanism for drum brake assembly |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111998019A (en) * | 2020-09-27 | 2020-11-27 | 唐荣富 | Tread brake device convenient to wearing and tearing discernment |
| CN111998019B (en) * | 2020-09-27 | 2021-12-31 | 东营信义制动系统有限公司 | Tread brake device convenient to wearing and tearing discernment |
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