CN1441882A - Brake with lining wear indicator - Google Patents
Brake with lining wear indicator Download PDFInfo
- Publication number
- CN1441882A CN1441882A CN 01812714 CN01812714A CN1441882A CN 1441882 A CN1441882 A CN 1441882A CN 01812714 CN01812714 CN 01812714 CN 01812714 A CN01812714 A CN 01812714A CN 1441882 A CN1441882 A CN 1441882A
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- CN
- China
- Prior art keywords
- liner
- hole
- brake
- iron parts
- brake disc
- 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
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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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The present invention relates to a brake for automobile, in relation to a disc brake device having a iron piece, a brake pad having a lining attached to said iron piece, and a disc, wherein said brake is made by inserting a writing unit at said iron piece so that the end thereof is positioned at the wear limit of said lining, in which the position of insertion of said writing unit is at the end of said iron piece, in the direction of rotation of said disc while an automobile is advancing forward.
Description
Technical field
The present invention relates to a kind of automotive brake, particularly, the present invention relates to a kind of braking device that includes an indicator, this indicator is used to indicate the wear limit of brake lining, and the driver just can in use check the abrasion condition of the described liner of brake pad voluntarily like this.
Background of invention
People by proposing many new inventions and improvement at being convenient to the various auxiliary devices that automobile uses and use safely, and make automotive engineering obtain stable development behind the invention automobile.In these inventions, although what too big variation the citation form of braking device does not have, occurred many at braking device form and the various inventions and the improvement that propose.
Particularly, with regard to the hydraulic brake system on being used for automobile, when the driver steps down on the brake petal, the pressure of hydraulic oil can be raise by a master cylinder, this master cylinder is also by the double control force of doing of the suction pressure that utilizes motor, and the pressure in the master cylinder will be passed to the oil hydraulic cylinder that is installed on drum-type or the disk type braker.By this operation, the piston that is installed in the oil hydraulic cylinder can be released.If the employing drum brake, the brake shoe that is installed in so in the automotive wheel will compress on the brake drum along the main direction of break, thereby produces friction on brake drum.If the employing disk type braker, it can be constructed by following mode so: make brake pad effectively compress the both sides of the brake disc that is made into integration with wheel.Like this, will between the surface of brake lining and brake disc, produce friction, thereby when kinetic energy is converted into heat energy, finish brake operating.
In the brake structure of these types, if carry out brake operating continuously, the liner of brake pad will be because of producing continuous wearing and tearing with the friction of brake drum or brake disc so.If this wearing and tearing continue, after liner was ground off fully, brake drum or brake disc will be impaired, cause brake failure the most at last so.Therefore,, a wear limit should be set,, brake pad wherein should be changed so if abrasion condition moves closer to wear limit for preventing the appearance of brake failure problem.
Therefore, the user must make regular check on the abrasion condition of brake pad.In the conventional method of checking abrasion condition, a kind of method of determining abrasion condition by the oil mass in the inspection braking fuel tank is arranged, in this method, the replacing time of brake pad is identified as under the prerequisite that does not have the leakage of oil problem in the wheel braking cylinder, the moment that the oil mass of brake oil is very low.But there are some defectives in these methods.Because it is this method relates to the hood of opening automobile, therefore very inconvenient; In addition, because the degree of wear is directly controlled by oil mass, therefore reduced validity to a certain extent.
In addition, also have a kind of operational circumstances that utilizes manual brake to finish the method for inspection.This method relate to the hand brake bar from driver's seat during pull-up by determining that oil hammer (oil hammer) quantity that has taken place determines the degree of wear.But this method is not direct inspection, if think and abnormal conditions occurred, so just needs with the naked eye directly to check, and finally also needs to pull down wheel, and is so just more inconvenient.
In addition, also has a kind of method that a metal parts is connected to brake pad one side.In the method, if the degree of wear of the liner on the brake pad arrives wear limit gradually, metal parts will contact and produce metallic noise with brake disc or brake drum so.But this method only just can produce this metallic noise in carrying out brake operation course, and obviously, driver or machine repair personnel can not always carry out continuous inspection to noise.If do not having to use break under the situation about changing continuously, when surpassing wear limit, brake disc or brake drum will damage so, and this is a very problem of trouble.
At last,, must pull down wheel for can accurately determining the abrasion condition of brake lining, then pull down braking device after, with the naked eye directly check.This method is not only consuming time, and cost is also higher.Specifically, for example for truck and the bus, this inconvenience is more obvious for large vehicle, so people will avoid this inspection inevitably, like this will be owing to potential danger appears in the generation that can not prevent fault.
Summary of the invention
The present invention is intended to solve the above-mentioned defective that exists in the prior art.Technical purpose of the present invention is to provide a kind of braking device, this braking device allows the driver in use directly to check the abrasion condition of the liner of brake pad, and driver or machine repair personnel need not to pull down braking device, and whether the liner that wherein said braking device allows with the naked eye to determine brake pad has reached wear limit.
For realizing above-mentioned technical purpose, for the disk type braker that is provided with iron parts, a brake pad (this brake pad is provided with a liner that is connected with described iron parts) and a brake disc, the present invention includes: a writing unit is inserted in the described iron parts, so that its end is positioned on the wear limit position of described liner, like this, when automobile was advanced forward, the plug-in mounting position of said write unit just was arranged on the end of described iron parts along the sense of rotation of described brake disc.
In addition, for described Disk brake apparatus, the present invention is equipped with described writing unit, this writing unit is a conductor, this device relates to and electric power is applied to respectively on brake disc and the writing unit and when writing unit and brake disc are in contact with one another, makes the warning light that is installed on the instrument panel luminous.
For being provided with a pair of brake shoe and drum brake system that is installed in the described brake shoe, the present invention includes: a plurality of through holes and a plurality of stopper that is used to seal described through hole are set on the front of described brake drum, and operator can see brake shoe by these holes.
In addition, for including the disk type braker that iron parts, are provided with the brake pad of a liner that is connected with described iron parts and a brake disc, the present invention includes: form the hole that iron parts are passed in a back from iron parts, the degree of depth maximum in hole can be the wear limit of described liner, when liner arrives wear limit, just can see the surface of brake disc like this by this hole.
Description of drawings
Fig. 1 is the planimetric map according to the embodiment 1 of braking device of the present invention;
Fig. 2 is the erection drawing according to the embodiment 2 of braking device of the present invention;
Fig. 3 is the front elevation according to the embodiment 3 of braking device of the present invention;
Fig. 4 is the front elevation according to the embodiment 4 of braking device of the present invention;
Fig. 5 is the sectional view according to the embodiment 5 of braking device of the present invention;
Fig. 6 is the sectional view according to the embodiment 6 of braking device of the present invention, there is shown the state of liner before wearing and tearing.
Detailed description to most preferred embodiment
To the embodiment according to braking device of the present invention be described in detail below.
Fig. 1 shows the disk type braker among the embodiment 1.For disk type braker, it generally adopts two brake pads.In Fig. 1, a writing unit 20 is inserted in the iron parts 10 of outside brake pad.
For the type of writing unit 20, there is not any special restriction, as long as it can be painted on the surface of metal dish 12, for example writing unit can be a slate pencil or an oil pike (oil pen).The height of the end of writing unit 20, perhaps the height from iron parts 10 to end should be concordant with the height of the wear limit (L) of brake lining 11.
In addition, when automobile was advanced forward, writing unit 20 can be positioned at (that is direction indicated by the arrow in Fig. 1) on the end along the sense of rotation of described dish 12.In Fig. 1, this writing unit is positioned at the left side of iron parts 10.If this writing unit 20 is arranged on side shown in Figure 1 and goes up in the opposite direction, working as liner 11 so is worn, and when surpassing wear limit, writing unit 20 will be made mark on the surface of brake disc 12, but this mark will be wiped owing to the friction between liner 11 and the brake disc 12.Therefore, writing unit should be provided with in the following manner: after the surperficial mutual friction mutually of liner 11 and brake disc 12, writing unit still can be made a mark on brake disc 12 surfaces.
Therefore, if loss is to wear limit (L) owing to use for a long time for brake lining 11, the end of writing unit 20 will contact with the surface of brake disc 12 so, so just forms an annular strip on the surface of brake disc 12.For the Disk brake apparatus of routine, even tire is in place, also 12 surface from the visual observation to the brake disc at an easy rate.Like this, under above-mentioned situation, just can utilize the abrasion condition that is observed visually brake lining 11.
Fig. 2 shows the embodiment 2 of Disk brake apparatus.In this embodiment, writing unit 20 is inserted in the sleeve pipe 31, and the excircle of described sleeve pipe 31 is provided with screw thread.By making this sleeve pipe and described iron parts 10 improve join strength between writing unit 20 and the iron parts 10 in the interconnective mode of screw thread.In this embodiment, this device is according to following design: in the high speed rotating process of wheel, prevent that the foreign that writing unit 20 is splashed from destroying.
With regard to above-mentioned two embodiments, writing unit 20 is preferably taper.For taper writing unit 20, the diameter of its cross section is broadening on the direction of iron parts 10 gradually.Like this, along with liner 11 is worn gradually, the lip-deep band that appears at brake disc 12 also can be more and more thicker, like this, just can easily be checked through the wearing and tearing progress.
In addition, the above embodiments also can be provided with an electronics indicating device.Because brake disc 12 is connected with car body, so brake disc is a negative pole.By making writing unit 20, the electric power from battery (+) is acted on the writing unit, and this writing unit can be connected with a warning light that is installed on the instrument panel with conductive material.In above-mentioned circuit, can install one and when brake petal is operated, can form the switch that conduction connects.In the process that liner 11 is worn gradually, when writing unit 20 contacted with the surface of brake disc 12, if the driver steps on brake petal, so above-mentioned circuit just was under the coupled condition, will make the warning light that is installed on the instrument panel luminous like this.
By described circuit is connected with brake petal, just can prevent the fault that causes owing to short circuit.When automobile when advancing in the rain, the surface of writing unit 20 and brake disc 12 will be conducted electricity by modes such as short circuits and will be connected.In this case, even liner does not reach wear limit (L), warning light also can be luminous.By described circuit and brake petal are linked together, just can make the warning light only just can be luminous when the driver contacts break.In other words, because brake disc 12 and writing unit 20 are linked together, therefore just need the another one condition just can make warning light luminous, this condition requires the driver to step down on the brake petal exactly.Like this, just improved the reliability of this device.
Fig. 3 shows the embodiment 3 of drum brake system.Different with Disk brake apparatus, drum brake system be provided with one with brake drum 41 on liner 11 part of mutual friction mutually, the profile of this part does not illustrate in the drawings.Therefore, for can directly with the naked eye checking abrasion condition, just need get out two through holes 42, and wheel just is installed in (as shown in Figure 3) on the brake drum 41 in the front of brake drum 41.
In Fig. 3, wheel fixes with bolt, and the liner 11 in order to see brake shoe 40, and needs are provided with through hole 42 respectively on the position of the sidewall that is close to brake drum 41.In Fig. 3, be formed with two through holes 42.A plurality of stoppers that cover described through hole 42 preferably are installed, to prevent in driving procedure, having foreign matter to enter brake drum 41.
Generally speaking, in case the cover plate of wheel is in place, a plurality of visible apertures will appear in the side of wheel.Therefore, when tire is fixed when putting in place, these through holes 42 can be aimed at these apertures.Like this, need not unload tire, just can check the abrasion condition of liner 11 by simply pulling down stopper.If the side at wheel is not provided with such aperture, can take off the mode of stopper then and check abrasion condition by pulling down wheel so.
Fig. 4 shows the embodiment 4 of Disk brake apparatus of the present invention.In this embodiment, be provided with the hole (50,51,52) that a plurality of rear sides from iron parts 10 extend to the inside of liner 11.Described each hole has the different degree of depth respectively.The degree of depth in the most shallow hole 50 extends to the wear limit (L) of liner 11 from the rear side of iron parts 10.Hole 51 is provided with by following mode: make the degree of depth of its degree of depth greater than hole 50, hole 52 is then darker.
Therefore, along with the wearing and tearing gradually of liner 11, liner will at first arrive the top in hole 52.Because there has not been liner 11 in the top in hole 52 because of wearing and tearing gradually, therefore can directly see the surface of brake disc by hole 52, like this, just can know the abrasion condition of liner 11.After this, if liner 11 continues wearing and tearing, so just can observe the surface of brake disc by two holes (51 and 52) that keep; Like this, just can little by little observe the abrasion condition of liner 11.Therefore, if can observe the surface of brake disc by all three holes, liner 11 just has been worn down to wear limit (L) so, and this just illustrates must change brake pad at once.
In addition, these holes are respectively taper.Like this, even in driving procedure, there is foreign matter to enter the inside in described hole, also can easily foreign matter be discharged in the hole by the turbulent flow on the brake pad outer surface.
Fig. 5 shows the embodiment 5 of Disk brake apparatus.In this embodiment, be provided with the hole 62 of a taper, the degree of depth in this hole extends to more than from iron parts 10 on the position of wear limit (L) of liner 11.On the bottom surface in described hole 64, but layering is provided with the different pigment of multiple color (61,62,63).
These pigment are filled to the position at wear limit (L) place from the bottom surface in described hole 64.Like this, if liner 11 produces wearing and tearing, the pigment 61 of the given color of clitellum shape will appear on the surface of brake disc 12 so.Along with the continuous wearing and tearing of liner, the band of different colours will appear on the surface of brake disc 12.By this method, just make the driver can determine the abrasion condition of liner 11 according to change in color.At last,, so just can directly see the surface of brake disc, thereby just show now more renewal of facing by described hole 64 if liner 11 is worn down on the position at wear limit (L) place.
Fig. 6 shows the embodiment 6 of Disk brake apparatus.In this embodiment, be provided with a hole 70, the iron parts 10 of brake pad are passed in this hole.The degree of depth in described hole 70 extends to the position at the wear limit place of liner from the rear side of iron parts.
In hole 70, be fitted with the Steel Support 72 of a T shape.Be formed with a flange 71 on the top of described T shape Steel Support 72.The top of flange 71 is provided with a projection, and the bottom of described T shape Steel Support 72 is connected with liner.
A spring 73 is installed between flange 71 and liner 11.In Fig. 6, this spring is the pushing tow flange in the upward direction.
In addition, on the top in described hole 70 retainer 74 is installed also.The certain distance of bulge clearance on this retainer 74 and the flange.One end of described retainer is fixed on the iron parts, and the part on the coverage hole 70.
Along with the wearing and tearing gradually of liner 11, if liner is worn down to the limit position of wearing and tearing, so the surface of the liner that links together with the bottom of T shape Steel Support also can be polished, and disappears.Then, the bottom of described spring 73 will contact with the surface of brake disc 12.Because the surface of supporting T shape Steel Support is worn away, so this Steel Support will move up under the resilient force of spring, and will be last, and the projection of retainer and flange are in contact with one another.
Therefore, the user can be by this way by checking that whether retainer contacts to determine the abrasion condition of liner with flange.Current supply line (74,75) preferably is connected with a side of described retainer 74 and the top of flange 71 respectively.The warning light that is connected with described lead can be installed on the instrument panel of pilot set.Like this, if retainer and flange are in contact with one another, the warning light that is installed in so on the instrument panel will be lighted, therefore can be from driver's the seat the direct abrasion condition of inspection liner.
Industrial applicibility
The present invention who describes by top embodiment allows with the naked eye directly to check liner 11 Abrasion condition, and need not brake apparatus is disassembled, this point is from time and economic angle Consider all highly beneficial. Therefore, the present invention prevents accident by the abrasion condition of accurate judgement liner The generation of event.
In addition, the present invention is by utilizing the different layer of a plurality of holes or a plurality of color with progressive mode table The abrasion condition of liner 11 is shown, makes the driver can know the replacing time of liner 11. Therefore, The driver just can determine replacing time of liner 11 in spare time, and therefore, the present invention has safety The effect of driving.
In addition, when liner was worn down to the position at the limit of wear (L) place, abrasion condition can lead to Cross the alarm lamp driver that is installed on the instrument board. Like this, the present invention utilizes simple structure Provide convenience for the inspection abrasion condition, for example can know abrasion condition from driver's seat.
Claims (13)
1, a kind of Disk brake apparatus, it comprises: iron parts 10; A brake pad that is provided with a liner 11, this liner 11 is connected with described iron parts 10; And brake disc; Wherein, described device comprises: a writing unit 20 is inserted in the described iron parts 10 in the following manner: the wear limit (L) that makes its end be positioned at described liner 11 is located, when automobile was advanced forward, the plug-in mounting position of said write unit 20 was positioned at the end of described iron parts 10 along the sense of rotation of described brake disc 12.
2, according to the Disk brake apparatus of claim 1, it comprises: a threaded hole 30 is set in described iron parts 10; Said write unit 20 is inserted in this hole; Thereby a sleeve pipe 31 is connected on the excircle in described hole 30 by screw thread.
3, according to the Disk brake apparatus of claim 1 or 2, it is characterized in that: said write unit 20 is for cylindrical.
4, according to the Disk brake apparatus of claim 1 or 2, it is characterized in that: said write unit 20 is conductors, it comprises electric power is acted on respectively on described brake disc 12 and the writing unit 20, thereby when writing unit 20 being contacted with brake disc 12, make the warning light that is installed on the instrument panel luminous owing to wearing and tearing.
5, a kind of drum brake system, it comprises: a pair of brake shoe 40 and a brake drum 41, described brake shoe 40 is installed in the described brake drum 41, this braking device comprises: a plurality of through holes 42 are set on the front surface of described brake drum 41, can see the brake shoe 40 that is installed in the device by described through hole; Installation is used to seal the stopper of described through hole 42.
6, a kind of Disk brake apparatus, it comprises: iron parts 10; A brake pad that is provided with a liner 11, this liner 11 is connected with described iron parts 10; A brake disc; Wherein, described device comprises: a hole 50 is set, and these iron parts 10 are passed in this hole from the rear surface of described iron parts 10, and the degree of depth in this hole upwards reaches the wear limit (L) of described liner 11; And directly see the surface of brake disc.
If 7 liners are worn down to wear limit (L), so just can directly see the surface of brake disc by described hole.
8, according to the Disk brake apparatus of claim 6, it comprises: in the more than one at least hole of the periphery setting in described first hole 50, the degree of depth in described hole is different or different with the degree of depth in described first hole 50; Like this, just can reach wear limit (L) and express abrasion condition in progressive mode before at liner 11.
9, according to the Disk brake apparatus of claim 6, it is characterized in that: the degree of depth in described hole 64 is greater than the wear limit (L) of liner 11, and it comprises the degree that is filled to pigment 61 on the bottom surface in described hole and reaches the surface that connects liner 11 and iron parts 10; Like this, if liner 11 is worn down on the position of bottom surface in described hole 64, the surface that will make described pigment 61 pollute brake discs 12.
10, Disk brake apparatus according to Claim 8, it comprises: the pigment (61,62,63) that two-layer at least color is different is filled on the bottom surface in described hole 64 and reaches the degree on the surface that liner 11 and iron parts 10 are linked together; Like this, just can color dye (61,62,63) be coated onto on the surface of brake disc 12 according to the degree of wear of liner 11.
11, according to claim 6,7, one of 8 or 9 Disk brake apparatus, it is characterized in that: described hole (50,51,52,64) are respectively cylindrical, accumulate in the described hole to prevent foreign matter.
12, a kind of Disk brake apparatus, it comprises: iron parts 10; A brake pad that is provided with a liner 11, this liner 11 is connected with described iron parts 10; A brake disc; Wherein, described device comprises: pass described iron parts 10 hole 70 is set, this hole extends to the position at the wear limit place of liner 11; A T shape Steel Support 72 is inserted to the inside in described hole 70; The bottom of described T shape Steel Support 72 is connected with liner surface, and described T shape Steel Support also is provided with a flange 71 at the top; One spring 73 is inserted between described flange 71 and the liner; The top that a retainer 74 is installed in described hole 70 has on the position of certain intervals distance; Thereby when gasket wear arrives wear limit, under the effect of spring 73, T shape Steel Support 72 is contacted with retainer 74 by T shape Steel Support 72 is thrown off with liner surface.
13, according to the Disk brake apparatus of claim 11, it comprises: respectively to described flange 71 and retainer 74 power supplies; If flange 71 is in contact with one another with retainer 74, will make the warning light on the instrument panel that is installed in pilot set luminous.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20000040358 | 2000-07-13 | ||
| KR2000/40358 | 2000-07-13 | ||
| KR2001/27589 | 2001-05-21 | ||
| KR10-2001-0027589A KR100436282B1 (en) | 2000-07-13 | 2001-05-21 | Brake with lining wear indicator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1441882A true CN1441882A (en) | 2003-09-10 |
Family
ID=26638217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01812714 Pending CN1441882A (en) | 2000-07-13 | 2001-07-12 | Brake with lining wear indicator |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN1441882A (en) |
| AU (1) | AU2001271102A1 (en) |
| WO (1) | WO2002006691A2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109083954A (en) * | 2017-06-13 | 2018-12-25 | 派德森（京山）汽车零部件有限公司 | Drum brake brake-lining wear-indicator |
| CN110446877A (en) * | 2017-03-23 | 2019-11-12 | 克诺尔商用车制动系统有限公司 | Disk brake for commercial vehicle |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5842665Y2 (en) * | 1977-09-20 | 1983-09-27 | 住友電気工業株式会社 | Mounting structure of brake pad wear detector |
| KR19980016823U (en) * | 1996-09-19 | 1998-06-25 | 김영귀 | Indicator for replacing brake lining of car |
| JP3533919B2 (en) * | 1998-01-13 | 2004-06-07 | 住友電装株式会社 | Mounting structure of brake pad wear detection probe |
-
2001
- 2001-07-12 CN CN 01812714 patent/CN1441882A/en active Pending
- 2001-07-12 WO PCT/KR2001/001201 patent/WO2002006691A2/en active Application Filing
- 2001-07-12 AU AU2001271102A patent/AU2001271102A1/en not_active Abandoned
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110446877A (en) * | 2017-03-23 | 2019-11-12 | 克诺尔商用车制动系统有限公司 | Disk brake for commercial vehicle |
| CN109083954A (en) * | 2017-06-13 | 2018-12-25 | 派德森（京山）汽车零部件有限公司 | Drum brake brake-lining wear-indicator |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2002006691A3 (en) | 2002-06-20 |
| AU2001271102A1 (en) | 2002-01-30 |
| WO2002006691A2 (en) | 2002-01-24 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |