CN205371387U - Drum brake with automatic alarm function - Google Patents
Drum brake with automatic alarm function Download PDFInfo
- Publication number
- CN205371387U CN205371387U CN201521061773.7U CN201521061773U CN205371387U CN 205371387 U CN205371387 U CN 205371387U CN 201521061773 U CN201521061773 U CN 201521061773U CN 205371387 U CN205371387 U CN 205371387U
- Authority
- CN
- China
- Prior art keywords
- brake
- shoe
- drum
- friction plate
- brake shoe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a drum brake with automatic alarm function, including the brake drum, be equipped with first brake shoe and second brake shoe respectively in the inner wall both sides of brake drum, connect through the ejector pin between first brake shoe and the second brake shoe, one side of first brake shoe is equipped with the cylinder, the opposite side of first brake shoe is equipped with first friction disc, the symmetry is equipped with two first archs on the first brake shoe, second brake shoe department still is equipped with the second friction disc, be equipped with two second archs on the second brake shoe, second brake shoe and ejector pin complex opposite side and outside hinged rack. The utility model discloses an effect is: through set up the arch that can realize alarming function on the brake shoe, when the friction disc weares and teares to maximum permissible value, the arch will bulge in the friction disc and when brakeing once more earlier with the brake drum contact, the stopper will send special sound warning driver and change the friction disc this moment to the effectual safety of traveling of having guaranteed the vehicle.
Description
Technical field
This utility model relates to drum brake, is specially a kind of drum brake with auto-alarm function.
Background technology
Automobile has certain kinetic energy when travelling with certain speed, along with improving constantly of automobile driving speed, make the car deceleration in traveling or parking, it is necessary for compulsory to automobile one power contrary with vehicle traveling direction of applying, this power is brake force, and brake system of car is exactly the device producing brake force.
Brake system of car generally comprises power supply device, controls device, actuating device and brake etc., and brake conventional on automobile at present is generally divided into drum brake and the big class of disk brake two.
Drum brake is with the inner cylinder face of brake drum for work surface, it widely uses on Hyundai Motor, currently used drum brake 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 is in use for some time it would appear that wear and tear, 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, it is likely to, so that vehicle brake force in braking procedure is not enough, there is very big potential safety hazard.
Utility model content
This utility model be intended to provide a kind of when friction disc wear to a certain extent time, brake can automatically send chimes of doom and remind the drum brake with auto-alarm function of driver's more renewal of facing renewal.
The drum brake with auto-alarm function in this programme, including brake drum, inwall at brake drum is respectively provided on two sides with the first brake-shoe and the second brake-shoe, it is attached 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 and the first friction plate coordinate is arranged with two first projections, first friction plate is arranged with two the first grooves, second brake-shoe place is additionally provided with the second friction plate, the one side that second brake-shoe and the second friction plate coordinate 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 is hinged with external rack.
The principle of this programme is: when being braked, ventilate in cylinder, the piston of cylinder moves out 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 its place that offsets with push rod, until the inwall laminating of the first friction plate and brake drum, meanwhile, an equal amount of active force is passed to 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, at the first brake-shoe and the second brake-shoe under the frictional force effect with brake drum, realize the braking action to brake drum.
First friction plate and the second friction plate will appear from abrasion 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 to the second projection protrude from the second friction plate time, again it is braked, first is protruding or the second projection will be fitted prior to the inwall of the first friction plate or the second friction plate with brake drum respectively, and now brake 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 to maximum permissible value, projection will protrude above friction plate and first contacts with brake drum when again braking, now brake will send special sound prompting driver more renewal of facing renewal, thus being effectively guaranteed the driving safety of vehicle.
Further, in order to improve powerdriven reliability between the first brake-shoe and the second brake-shoe and push rod, push rod two ends are provided with the circular arc that radius is identical, first brake-shoe is provided with first arc groove identical with the arc radius of push rod with the push rod place of offseting, and the second brake-shoe is provided with second arc groove identical with the arc radius of push rod with the push rod place of offseting.
Further, it is additionally provided with extension spring between first brake-shoe and the second brake-shoe, extension spring one end and the first brake-shoe offset, the extension spring 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 make the first friction plate and the second friction plate separate with the inwall of brake drum, it is ensured that brake drum can work normally when not being braked.
Further, in order to make the first friction plate and the second friction plate produce maximum brake 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 is equal to the inwall arc radius of brake drum.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model embodiment.
Detailed description of the invention
Below by detailed description of the invention, this utility model is described in further detail:
Accompanying drawing labelling in Figure of description includes: brake drum the 1, first brake-shoe the 2, first projection the 3, first friction plate the 4, second brake-shoe the 5, second projection the 6, second friction plate 7, cylinder 8, push rod 9, extension spring 10, bearing pin 11.
Embodiment is substantially as shown in Figure 1: have the drum brake of auto-alarm function, including brake drum 1, brake drum 1 is a boring structure, being provided with the first brake-shoe 2 and the second brake-shoe 5 in the boring structure of brake drum 1, the first brake-shoe 2 and the second brake-shoe 5 lay respectively at the both sides of the hollow-core construction of brake drum 1.
It is the first brake-shoe 2 in the left side of brake drum 1 boring structure, it is provided with cylinder 8 on the right side of the first brake-shoe 2, the right side of cylinder 8 is fixing with external rack to be connected, the left side of cylinder 8 is provided with piston, cylinder 8 is when ventilation, the piston of cylinder 8 can offset with the first brake-shoe 2, also symmetrical above and below in the left side of the first brake-shoe 2 is provided with two the first projections 3, is provided with the first arc groove in the downside of the first brake-shoe 2.
It is provided with the first friction plate 4 in the left side of the first brake-shoe 2, the right flank of the first friction plate 43 corresponding positions protruding with first are provided with the first groove, when carrying out the installation of the first friction plate 4, by corresponding with the first projection 3 for the first groove on the first friction plate 4, the left side arc radius of the first friction plate 4 is equal to the arc radius of brake body inwall, when braking, the first friction plate 4 can be fitted with brake-shoe inwall comprehensively, improves brake efficiency.
It is the second brake-shoe 5 on the right side of brake drum 1 hollow-core construction, second brake-shoe 5 is class crescent structure, wherein the upside of the second brake-shoe 5 is provided with pin-and-hole, second brake-shoe 5 is attached with external rack by being positioned at the bearing pin 11 at pin-and-hole place, it is arranged with two the second projections 6 on the right side of the second brake-shoe 5, is additionally provided with the second arc groove in the downside of the second brake-shoe 5.
It is additionally provided with the second friction plate 7 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 arc radius of the second friction plate 7 is equal to the arc radius of brake drum 1 inwall.
It is provided with push rod 9 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 two ends cylindrical posts with circular arc, the arc radius at push rod 9 two ends is identical, and the arc radius at push rod 9 two ends is also simultaneously equal to the first arc groove and the arc radius of the second arc groove.
Being additionally provided with extension spring 10, extension spring 10 left end and the first brake-shoe 2 in the upside of the first brake-shoe 2 and the second brake-shoe 5 to connect, extension spring 10 right-hand member and the second brake-shoe 5 connect.
Above-described is only embodiment of the present utility model, 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 premise without departing from this utility model structure, it is also possible to make some deformation and improvement; these also should be considered as protection domain of the present utility model, and these are all without affecting effect and the practical applicability that this utility model is implemented.The protection domain that this application claims should be as the criterion with the content of its claim, and the detailed description of the invention in description etc. records the content that may be used for explaining claim.
Claims (4)
- null1. a drum brake with auto-alarm function，It is characterized in that: include brake drum，Inwall at described brake drum is respectively provided on two sides with the first brake-shoe and the second brake-shoe，It is attached 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 mating surface are arranged with two first projections，Described first friction plate is arranged with two the first grooves，Described second brake-shoe place is additionally provided with the second friction plate，Described second brake-shoe and described second friction plate mating 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 is hinged with external rack.
- 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 circular arc that radius is identical, described first brake-shoe is provided with first arc groove identical with the arc radius 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 arc radius 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 additionally provided with extension spring, described extension spring one end and described first brake-shoe offset, and the described extension spring other end and described second brake-shoe offset.
- 4. the drum brake with auto-alarm function according to claim 3, it is characterised in that: the outer arc radius of described first friction plate and described second friction plate is equal to the inwall arc radius of described brake drum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521061773.7U CN205371387U (en) | 2015-12-20 | 2015-12-20 | Drum brake with automatic alarm function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521061773.7U CN205371387U (en) | 2015-12-20 | 2015-12-20 | Drum brake with automatic alarm function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205371387U true CN205371387U (en) | 2016-07-06 |
Family
ID=56259304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521061773.7U Expired - Fee Related CN205371387U (en) | 2015-12-20 | 2015-12-20 | Drum brake with automatic alarm function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205371387U (en) |
Cited By (2)
| 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 |
| CN105465237A (en) * | 2015-12-20 | 2016-04-06 | 重庆泽田汽车部件有限责任公司 | Drum brake with automatic alarm function |
-
2015
- 2015-12-20 CN CN201521061773.7U patent/CN205371387U/en not_active Expired - Fee Related
Cited By (2)
| 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 |
| CN105465237A (en) * | 2015-12-20 | 2016-04-06 | 重庆泽田汽车部件有限责任公司 | Drum brake with automatic alarm function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160706 Termination date: 20161220 |