CN105465237A - Drum brake with automatic alarm function - Google Patents
Drum brake with automatic alarm function Download PDFInfo
- Publication number
- CN105465237A CN105465237A CN201510953322.2A CN201510953322A CN105465237A CN 105465237 A CN105465237 A CN 105465237A CN 201510953322 A CN201510953322 A CN 201510953322A CN 105465237 A CN105465237 A CN 105465237A
- Authority
- CN
- China
- Prior art keywords
- brake
- brake shoe
- drum
- friction plate
- push rod
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 abstract description 4
- 238000005299 abrasion Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 6
- 230000000875 corresponding Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
Classifications
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- 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
- F16D51/00—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like
- F16D51/16—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like shaped as brake-shoes pivoted on a fixed or nearly-fixed axis
- F16D51/18—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like shaped as brake-shoes pivoted on a fixed or nearly-fixed axis with two brake-shoes
- F16D51/20—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like shaped as brake-shoes pivoted on a fixed or nearly-fixed axis with two brake-shoes extending in opposite directions from their pivots
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- 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
- F16D65/00—Parts or details
- F16D65/02—Braking members; Mounting thereof
- F16D65/04—Bands, shoes or pads; Pivots or supporting members therefor
- F16D65/08—Bands, shoes or pads; Pivots or supporting members therefor for internally-engaging brakes
-
- 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
-
- 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
- F16D2121/00—Type of actuator operation force
- F16D2121/02—Fluid pressure
- F16D2121/04—Fluid pressure acting on a piston-type actuator, e.g. for liquid pressure
Abstract
The invention discloses a drum brake with the automatic alarm function. The drum brake comprises a brake drum; a first brake shoe and a second brake shoe are arranged on the two sides of the inner wall of the brake drum respectively and are connected through an ejection rod; an air cylinder is arranged on one side of the first brake shoe, a first friction plate is arranged on the other side of the first brake shoe, and the first brake shoe is provided with two first protrusions symmetrically; the second brake shoe is provided with a second friction plate and two second protrusions, and the other side, matched with the ejection rod, of the second brake shoe is hinged to an external machine frame. According to the scheme, by arranging the protrusions with the alarm function on the brake shoes, when abrasion of the friction plates reaches the maximum allowable value, the protrusions protrude out of the friction plates and make contact with the brake drum firstly in the next braking process, then the brake makes special sounds for reminding drives to replace the friction plates, and therefore the driving safety of vehicles is effectively guaranteed.
Description
Technical field
The present invention relates to drum brake, be specially a kind of drum brake with auto-alarm function.
Background technique
Automobile has certain kinetic energy when travelling with certain speed of a motor vehicle, along with improving constantly of automobile driving speed, make the car deceleration in traveling or parking, just compulsoryly must apply a power contrary with vehicle traveling direction to automobile, this power is braking force, and brake system of car is exactly the device producing braking force.
Brake system of car generally comprises energy supplying device, control gear, transmission device and break etc., and break conventional on automobile at present is generally divided into drum brake and the large class of disk type braker two.
Drum brake is for working surface with the inner cylindrical surface of brake drum, it widely uses on Hyundai Motor, the drum brake of current use is when braking, friction plate and brake drum press, the braking effect of brake drum is realized under the effect of frictional force, the friction plate of this drum brake will there will be wearing and tearing in use for some time, and friction plate may wear to a certain degree after its performance will decline to a great extent, if the replacing of friction plate now can not be carried out timely, the braking force of vehicle in braking process may be made not enough, there is very large potential safety hazard.
Summary of the invention
The invention is intended to provide a kind of when friction disc wear to a certain extent time, break can send the drum brake with auto-alarm function of chimes of doom prompting driver more renewal of facing renewal automatically.
The drum brake with auto-alarm function in this programme, comprise brake drum, the first brake shoe and the second brake shoe is respectively equipped with in the inwall both sides of brake drum, connected by push rod between first brake shoe and the second brake shoe, the side of the first brake shoe is provided with cylinder, the opposite side of the first brake shoe is provided with the first friction plate, the one side that first brake shoe coordinates with the first friction plate is arranged with two first projections, first friction plate is arranged with two the first grooves, second brake shoe place is also provided with the second friction plate, the one side that second brake shoe coordinates with the second friction plate is arranged with two second projections, second friction plate is arranged with two the second grooves, the opposite side that second brake shoe coordinates with push rod and external rack hinged.
The principle of this programme is: when braking, ventilate in cylinder, the piston of cylinder outwards moves and offsets with the first brake shoe, piston continuous action also gives the first brake shoe one near the active force of brake drum inwall, under this active force, first brake shoe is close to brake drum inwall around itself and the push rod place that offsets, until the inwall laminating of the first friction plate and brake drum, meanwhile, onesize force transmission is given the second brake shoe by push rod, second brake shoe will along close to brake shoe inwall with frame hinged place under the active force of push rod, until the inwall laminating of the second friction plate and brake drum, under the frictional force effect of the first brake shoe and the second brake shoe and brake drum, realize the braking action to brake drum.
Appearance is worn and torn by the first friction plate and the second friction plate in use for some time, when the first friction disc wear protrudes from the first friction plate to the first projection, or second friction disc wear when protruding from the second friction plate to the second projection, again brake, first projection or the second projection will be fitted prior to the inwall of the first friction plate or the second friction plate and brake drum respectively, and now break will send special sound prompting driver more renewal of facing renewal.
The effect of this programme is: by arranging the projection that can realize warning function on brake shoe, when friction disc wear is to maximum permissible value, projection will protrude from friction plate and first contact with brake drum when again braking, now break will send special sound prompting driver more renewal of facing renewal, thus effectively ensure that the driving safety of vehicle.
Further, in order to improve the first brake shoe and powerdriven reliability between the second brake shoe and push rod, push rod two ends are provided with the identical circular arc of radius, first brake shoe and the push rod place of offseting are provided with first arc groove identical with the radius of arc of push rod, and the second brake shoe and the push rod place of offseting are provided with second arc groove identical with the radius of arc of push rod.
Further, also extension spring is provided with between first brake shoe and the second brake shoe, extension spring one end and the first brake shoe offset, the extension spring the other end and the second brake shoe offset, when after end of braking, first brake shoe and the second brake shoe automatically reset under the effect of extension spring, and the first friction plate is separated with the inwall of brake drum with the second friction plate, ensure that brake drum can work normally when not braking.
Further, in order to make the first friction plate and the second friction plate produce maximum braking force when braking between energy and the inwall of brake shoe, the outer arc radius of the first friction plate and the second friction plate equals the inwall radius of arc of brake drum.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention.
Embodiment
Below by embodiment, the present invention is further detailed explanation:
Reference character in Figure of description comprises: brake drum 1, first brake shoe 2, first projection 3, first friction plate 4, second brake shoe 5, second projection 6, second friction plate 7, cylinder 8, push rod 9, extension spring 10, bearing pin 11.
Embodiment is substantially as shown in Figure 1: the drum brake with auto-alarm function, comprise brake drum 1, brake drum 1 is a boring structure, the both sides that the first brake shoe 2 and the second brake shoe 5, first brake shoe 2 and the second brake shoe 5 lay respectively at the hollow-core construction of brake drum 1 are provided with in the boring structure of brake drum 1.
Be the first brake shoe 2 in the left side of brake drum 1 boring structure, cylinder 8 is provided with on the right side of the first brake shoe 2, the right side of cylinder 8 is fixedly connected with external rack, the left side of cylinder 8 is provided with piston, cylinder 8 is when ventilating, the piston of cylinder 8 can offset with the first brake shoe 2, is also arranged with two the first projections 3 up and down, is provided with the first arc groove in the downside of the first brake shoe 2 in the left side of the first brake shoe 2.
The first friction plate 4 is provided with in the left side of the first brake shoe 2, the right flank of the first friction plate 4 is provided with the first groove with the first protruding 3 corresponding positions, when carrying out the installation of the first friction plate 4, the first groove on first friction plate 4 is corresponding with the first projection 3, the left side radius of arc of the first friction plate 4 equals the radius of arc of brake body inwall, when braking, the first friction plate 4 can be fitted with brake shoe inwall comprehensively, improves Braking efficiency.
Be the second brake shoe 5 on the right side of brake drum 1 hollow-core construction, second brake shoe 5 is class crescent shape structure, wherein the upside of the second brake shoe 5 is provided with pin-and-hole, second brake shoe 5 is connected with external rack by the bearing pin 11 being positioned at pin-and-hole place, be arranged with two the second projections 6 on the right side of the second brake shoe 5, be also provided with the second arc groove in the downside of the second brake shoe 5.
The second friction plate 7 is also provided with on the right side of the second brake shoe 5, on the left surface of the second friction plate 7,6 corresponding positions protruding with second are provided with the second groove, when carrying out the installation of the second friction plate 7, second groove of the second friction plate 7 is corresponding with the second projection 6, and the right flank radius of arc of the second friction plate 7 equals the radius of arc of brake drum 1 inwall.
Push rod 9 is provided with between first arc groove and the second arc groove of the second brake shoe 5 of the first brake shoe 2, push rod 9 is the cylindrical posts of two end band circular arcs, the radius of arc at push rod 9 two ends is identical, and the radius of arc at push rod 9 two ends also equals the radius of arc of the first arc groove and the second arc groove simultaneously.
Also be provided with extension spring 10 in the upside of the first brake shoe 2 and the second brake shoe 5, extension spring 10 left end is connected with the first brake shoe 2, and extension spring 10 right-hand member is connected with the second brake shoe 5.
Above-described is only embodiments of the invention, and in scheme, the general knowledge such as known concrete structure and characteristic does not do too much description at this.Should be understood that; for a person skilled in the art, under the prerequisite not departing from structure of the present invention, some distortion and improvement can also be made; these also should be considered as protection scope of the present invention, and these all can not affect effect of the invention process and practical applicability.The protection domain that this application claims should be as the criterion with the content of its claim, and the embodiment in specification etc. record the content that may be used for explaining claim.
Claims (4)
1. one kind has the drum brake of auto-alarm function, it is characterized in that: comprise brake drum, the first brake shoe and the second brake shoe is respectively equipped with in the inwall both sides of described brake drum, connected by push rod between described first brake shoe and described second brake shoe, the side of described first brake shoe is provided with cylinder, the opposite side of described first brake shoe is provided with the first friction plate, described first brake shoe and described first friction plate fitting surface are arranged with two first projections, described first friction plate is arranged with two the first grooves, described second brake shoe place is also provided with the second friction plate, described second brake shoe and described second friction plate fitting surface are also arranged with two second projections, described second friction plate is arranged with two the second grooves, the opposite side that described second brake shoe coordinates with described push rod and external rack hinged.
2. the drum brake with auto-alarm function according to claim 1, it is characterized in that: described push rod two ends are provided with the identical circular arc of radius, described first brake shoe is provided with first arc groove identical with the radius of arc of described push rod with the described push rod place of offseting, and described second brake shoe is provided with second arc groove identical with the radius of arc of described push rod with the described push rod place of offseting.
3. the drum brake with auto-alarm function according to claim 2, it is characterized in that: between described first brake shoe and described second brake shoe, be also provided with extension spring, described extension spring one end and described first brake shoe offset, and the described extension spring the other end and described second brake shoe offset.
4. the drum brake with auto-alarm function according to claim 3, is characterized in that: the outer arc radius of described first friction plate and described second friction plate equals the inwall radius of arc of described brake drum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510953322.2A CN105465237A (en) | 2015-12-20 | 2015-12-20 | Drum brake with automatic alarm function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510953322.2A CN105465237A (en) | 2015-12-20 | 2015-12-20 | Drum brake with automatic alarm function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105465237A true CN105465237A (en) | 2016-04-06 |
Family
ID=55603263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510953322.2A Pending CN105465237A (en) | 2015-12-20 | 2015-12-20 | Drum brake with automatic alarm function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105465237A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105402282A (en) * | 2015-12-15 | 2016-03-16 | 重庆亘宇园林景观工程有限公司 | Self-reinforcing drum brake with ventilating and cooling device |
| CN105972123A (en) * | 2016-07-28 | 2016-09-28 | 肇庆高新区凯盈顺汽车设计有限公司 | Drum brake |
| CN108061113A (en) * | 2017-12-27 | 2018-05-22 | 朱宗华 | A kind of drum brake lining of city for facilitating installation |
| CN109404441A (en) * | 2018-12-31 | 2019-03-01 | 河北百龙汽车配件制造有限公司 | A kind of anticreep brake shoe |
| CN110953275A (en) * | 2019-12-24 | 2020-04-03 | 合肥美桥汽车传动及底盘系统有限公司 | Brake friction plate thickness early warning system |
| CN111536173A (en) * | 2020-05-06 | 2020-08-14 | 一汽解放汽车有限公司 | Brake shoe mechanism and brake device |
-
2015
- 2015-12-20 CN CN201510953322.2A patent/CN105465237A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105402282A (en) * | 2015-12-15 | 2016-03-16 | 重庆亘宇园林景观工程有限公司 | Self-reinforcing drum brake with ventilating and cooling device |
| CN105972123A (en) * | 2016-07-28 | 2016-09-28 | 肇庆高新区凯盈顺汽车设计有限公司 | Drum brake |
| CN108061113A (en) * | 2017-12-27 | 2018-05-22 | 朱宗华 | A kind of drum brake lining of city for facilitating installation |
| CN109404441A (en) * | 2018-12-31 | 2019-03-01 | 河北百龙汽车配件制造有限公司 | A kind of anticreep brake shoe |
| CN109404441B (en) * | 2018-12-31 | 2021-01-15 | 河北百龙汽车配件股份有限公司 | Anti-drop brake shoe |
| CN110953275A (en) * | 2019-12-24 | 2020-04-03 | 合肥美桥汽车传动及底盘系统有限公司 | Brake friction plate thickness early warning system |
| CN111536173A (en) * | 2020-05-06 | 2020-08-14 | 一汽解放汽车有限公司 | Brake shoe mechanism and brake device |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |