CN205350157U - Drum brake in convenient adjustment and compensation brake clearance - Google Patents
Drum brake in convenient adjustment and compensation brake clearance Download PDFInfo
- Publication number
- CN205350157U CN205350157U CN201620099687.3U CN201620099687U CN205350157U CN 205350157 U CN205350157 U CN 205350157U CN 201620099687 U CN201620099687 U CN 201620099687U CN 205350157 U CN205350157 U CN 205350157U
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- Prior art keywords
- brake
- lid shell
- braking gap
- shoe
- compensate
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Abstract
The utility model discloses a drum brake in convenient adjustment and compensation brake clearance, it includes: brake rim, braking lid, two shoe pieces and brake cam axle, the head end of brake cam axle be one be the cuboid form flat, the one end of two shoe pieces is articulated each other, and the head end clamp of brake cam axle is located between the other end of two shoe pieces, it still includes: two lid shells, each locates the other end of a shoe piece with gliding mode cover around can two lid shells, and every lid shell is locked by a locking mechanism, front end of every lid shell is provided with one and presss from both sides the baffle between the head end of the other end of locating the shoe piece and brake cam axle, and the compensation gasket, establish the compensation gasket and come compensation brake clearance through pressing from both sides between the other end of shoe piece and the baffle. The utility model discloses a lid shell sets up the compensation gasket in the tip of shoe piece and comes compensation brake clearance, and the easy dismounting and the installation of compensation gasket are firm reliable.
Description
Technical field
This utility model relates to drum brake field, particularly to a kind of convenient drum brake adjusted and compensate braking gap.
Background technology
Vehicle is Modern Traffic most convenient, applies maximum means of transports, and brake is most important safety member on vehicle, and the braking ability of vehicle directly affects the driving safety of vehicle.Drum brake low cost and meet traditional design, it is widely used, it includes brake rim, shoe piece, fulcrum post, return spring and brake camshaft etc., and it controls shoe piece by brake camshaft and is flared out, to be realized brake by the friction facing friction brake drum on shoe piece.After brake rim or friction facing are worn, braking gap can be formed, owing to brake camshaft rotational angle is limited in, it rotates in the angular range of regulation, it is fixing for producing effective braking offset, for there is friction facing and the brake rim of abrasion, it cannot increase friction facing outwardly distance further to compensate braking gap.Therefore, once there is braking gap, if changing brake rim or friction facing not in time, brake failure will be easily caused quick, thus there is potential safety hazard when causing needing brake hard.Frequently change friction facing or brake rim will necessarily increase use cost.
China Patent Publication No. is in an application for a patent for invention of CN103742563, disclose a kind of drum brake, it includes brake camshaft, shoe piece and brake rim, two big planes of flat piece of the head end of brake camshaft are each provided with the transition cover plate of a U-shape, it compensates pad increase thickness and the catercorner length of flat piece by adding in transition cover plate such that it is able to repaid brake rim or friction facing be worn after the braking gap that formed.Although this drum brake can effective compensation braking gap, but, owing to transition cover plate and compensation pad are disposed on the head end of brake camshaft, its dismounting is cumbersome, and transition cover plate and compensation pad need constantly along with brake camshaft rotates, getting loose or shifting easily occur in transition cover plate and compensation pad, thus affecting the use of drum brake.And transition cover plate is fixed by sunk screw, no matter sunk screw is with flat recess or cross recess or wabbler, the corner of sunk screw groove all easy to wear, causes that sunk screw difficulty splits out.Further, since when needing not compensate for braking gap, it is distinct for compensating pad with shoe piece, it is easy to cause the loss compensating pad, when needs use, it is difficult to find compensation pad, make troubles thus compensating pad also to interpolation.
It is disclosed in the information of this background section and is merely intended to increase the understanding to general background of the present utility model, and be not construed as admitting or imply in any form that this information structure is for prior art that persons skilled in the art are known.
Utility model content
The purpose of this utility model is in that to provide a kind of convenient drum brake adjusted and compensate braking gap, thus overcoming the dismounting compensating pad of existing drum brake cumbersome and compensating the shortcoming that getting loose or shifting easily occur in pad.
For achieving the above object, this utility model provides a kind of convenient drum brake adjusted and compensate braking gap, comprising: brake rim, brake cover, two shoe pieces and brake camshaft, the head end of described brake camshaft is one is rectangular-shaped flat piece；One end of two described shoe pieces is hinged, and the head end of described brake camshaft is located between the other end of two described shoe pieces；Wherein, also including: two lid shells, two these lid shells are respectively can be sheathed on the other end of a described shoe piece in the way of slide anteroposterior, and this lid shell each is locked by a retaining mechanism；The front end of this lid shell each is provided with the baffle plate between the other end being located in described shoe piece and the head end of described brake camshaft；And compensation pad, compensate braking gap by this compensation pad of sandwiched between the other end and the described baffle plate of described shoe piece.
Preferably, in technique scheme, the front portion of described lid shell is one be provided with the lid shell head that the hollow of opening is rectangular-shaped in rear end, and described lid shell is by described lid shell head can be sheathed on the other end of described shoe piece in the way of slide anteroposterior, and the header board of described lid shell head is described baffle plate.
Preferably, in technique scheme, described retaining mechanism includes: tailgate, and the rear portion of described lid shell is provided with this tailgate of two distributions symmetrical above and below, and this tailgate each offers an elongated hole along the longitudinal direction；Crossing nail, itself and described elongated hole are arranged in correspondence with in the other end of described shoe piece；Lock-screw, its elongated hole passing two described tailgates and described nail excessively；And locking nut, it is engaged being connected with described lock-screw.
Preferably, in technique scheme, described compensation pad is provided with the specification of different-thickness.
Preferably, in technique scheme, the thickness specification of described compensation pad includes 0.5mm, 1mm, 2mm, 3mm, 4mm.
Preferably, in technique scheme, the other end of described shoe piece is provided with the graduation mark corresponding with described tailgate.
Preferably, in technique scheme, the inner side of described shoe piece is provided with one for depositing the cavity of described compensation pad.
Preferably, in technique scheme, the centre of described compensation pad is provided with through hole, can be fixed within described cavity by screw.
Preferably, in technique scheme, the sidewall of described cavity takes the shape of the letter U shape.
Preferably, in technique scheme, also include one for detecting the angle detection device of the rotational angle of described brake camshaft.
Preferably, in technique scheme, described shoe piece is provided with the alarming sign for pointing out the limit of wear.
Compared with prior art, this utility model has the advantages that
1, this utility model is arranged at compensation pad by lid shell the end of shoe piece, thus before brake camshaft rotates and struts two shoe pieces, just two shoe pieces are made outwards to have strutted certain distance in advance to compensate braking gap, compensate pad and be installed on the end of shoe piece by lid shell, its easy accessibility and install solid and reliable, will not produce to get loose or shifting phenomena.
2, this utility model further advantage is that the compensation pad being provided with different-thickness specification, carries out corresponding braking gap compensation with the different wear stages for friction shim and brake rim.
3, the inner side that further advantages in that shoe piece of the present utility model is provided with one for depositing the cavity of described compensation pad, so that compensation pad can be made to deposit with car, not easily loses.
4, the angle detection device of the rotational angle that further advantages in that by being arranged to detection brake camshaft of the present utility model, when there is braking gap, in braking procedure, brake camshaft just can turn to the position that oversteps the extreme limit, after angle detection device detects that brake camshaft rotates more than extreme position, control system will remind user to change compensation pad or shoe piece in time.
Accompanying drawing explanation
Fig. 1 is the perspective view according to the convenient drum brake adjusting and compensating braking gap of this utility model.
Fig. 2 is the decomposition texture schematic diagram according to the convenient drum brake adjusting and compensating braking gap of this utility model.
Fig. 3 is the left view according to Fig. 1 of the present utility model.
Main Reference Numerals illustrates:
1-shoe piece, 11-friction facing, 12-cavity, 13-crosses nail, 14-graduation mark, and 15-warns groove；2-brake camshaft, 21-head end, 22-detects groove；3-lid shell, 31-lid shell head, 32-tailgate, 33-elongated hole；4-compensates pad, 41-through hole；5-lock-screw；6-locking nut；7-sensor.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in detail, it is to be understood that protection domain of the present utility model is not by the restriction of detailed description of the invention.
Explicitly indicate that unless otherwise other, otherwise in entire disclosure and claims, term " includes " or its conversion will be understood to comprise the element or ingredient stated at such as " comprising " or " including " etc., and does not get rid of other element or other ingredient.
Fig. 1 to Fig. 3 shows the structural representation of a kind of convenient drum brake adjusting and compensating braking gap according to this utility model preferred implementation, this convenience adjusts and compensates the drum brake of braking gap and includes brake rim (figure does not look), brake cover (figure does not look), two shoe pieces 1, brake camshaft 2, lid shell 3 and compensation pad 4, with reference to Fig. 1 and Fig. 2, brake rim, brake cover, shoe piece 1 is the same with the structure of the structure of brake camshaft 2 and fit system and conventional drum brake and fit system, the head end 21 of brake camshaft 2 is one is rectangular-shaped flat piece, the material of shoe piece 1 is aluminum matter or ferrum matter, the arranged outside of shoe piece 1 has friction facing 11.One end of two shoe pieces 1 is hinged, and the head end 21 of brake camshaft 2 is located between the other end of two shoe pieces 1, when brake camshaft 2 rotates, just can pass through head end 21 and strut two shoe pieces 1, shoe piece 1 is flared out contacting with brake rim with the friction facing 11 being arranged on, thus reaching the purpose of braking.
With reference to Fig. 1 and Fig. 2, two lid shells 3 are each can be sheathed on the other end of a shoe piece 1 in the way of slide anteroposterior, and each lid shell 3 is locked by a retaining mechanism, after lid shell 3 is adjusted suitable position, just can not be slided by retaining mechanism tightening cover shell 3.The front end of each lid shell 3 is provided with the baffle plate between the other end being located in shoe piece 1 and the head end 21 of brake camshaft 2, compensates pad 4 by sandwiched and compensate braking gap between the other end and the baffle plate of shoe piece 1.This utility model is on the basis of existing drum brake, compensate pad 4 by 3, lid shell and be arranged at the end of shoe piece 1, thus before brake camshaft 2 rotates and struts two shoe pieces 1, just two shoe pieces 1 are made outwards to have strutted certain distance in advance to compensate braking gap, compensate pad 4 and be installed on the end of shoe piece 1 by lid shell 3, its easy accessibility and install solid and reliable, will not produce to get loose or shifting phenomena.This utility model makes friction facing 11 be fully used by compensating pad 4, after friction facing 11 major part abrasion, just needs to change friction facing 11, thus saving use cost.
Preferably, with continued reference to Fig. 1 and Fig. 2, the front portion of lid shell 3 is one be provided with the lid shell head 31 that the hollow of opening is rectangular-shaped in rear end, and lid shell 3 is by lid shell head 31 can be sheathed on the other end of shoe piece 1 in the way of slide anteroposterior, and the header board of lid shell head 31 is baffle plate.Installing when compensating pad 4, compensate pad 4 and be enclosed in lid shell head 31, lid shell head 31 and compensate the impact that pad 4 all will not be subject to the rotation of brake camshaft 2, it is firm that its position consolidates, and more impossible gets loose and shifting phenomena.Further preferably, retaining mechanism includes tailgate 32, cross nail 13, lock-screw 5 and locking nut 6, the rear portion of lid shell 3 is provided with the tailgate 32 of two distributions symmetrical above and below, each tailgate 32 offers an elongated hole 33 along the longitudinal direction, cross nail 13 and be arranged in correspondence with in the other end of shoe piece 1 with elongated hole 33, lock-screw 5 passes the elongated hole 33 of two tailgates 32 and crosses nail 13, locking nut 6 is engaged being connected with lock-screw 5, after adjusting the position of lid shell 3, it is fixed on shoe piece 1 by locking nut 6 and 5 two tailgates 32 of lock-screw, just can tightening cover shell 3.Can arrange in arc-shaped outside tailgate 32 or inclined plane shape, to keep the outside of the non-bulging shoe piece 1 of tailgate 32, thus avoiding interfering with brake rim.Two tailgates 32 being arranged at after lid shell 3 are fixed by this utility model by lock-screw, thereby through the fixing lid shell 3 in side, can be easy to dismounting, and avoid lock-screw 5 and locking nut 6 that the rotation of brake camshaft 2 is interfered.Further preferably, with reference to Fig. 3, the other end of shoe piece 1 is provided with the graduation mark 14 corresponding with tailgate 32, with by graduation mark 14 as a reference to adjust the front and back position of lid shell 3, and check the thickness compensating pad 4 of installation whether suitable.
Preferably, compensate pad 4 and be provided with the specification of different-thickness.It is further preferred that the thickness specification compensating pad 4 includes 0.5mm, 1mm, 2mm, 3mm, 4mm, each compensation pad 4 is marked with thickness mark or numbering, to facilitate identification.This utility model is provided by the compensation pad 4 of different-thickness specification, carries out corresponding braking gap compensation with the different wear stages for friction shim 11 and brake rim.And the compensation pad 4 of different-thickness specification can combine use, to reach suitable compensation thickness.
Further, with continued reference to Fig. 1 and Fig. 2, the inner side of shoe piece 1 is provided with one for depositing the cavity 12 compensating pad 4.This utility model is by arranging cavity 12 in the inner side of shoe piece 1 such that it is able to makes compensation pad 4 deposit with car, not easily loses.Compensate pad 4 to be put in cavity and can be fixed in cavity 12 by lid or other fixed mechanisms, to avoid vibrations to drop.Preferably, the centre compensating pad 4 is provided with through hole 41, and being fixed within cavity 12 by screw, the bottom of cavity 12 is provided with the screwed hole with screw fit.The shape it is further preferred that the sidewall of cavity 12 takes the shape of the letter U, to facilitate compensation pad 4 of taking.
Further, with continued reference to Fig. 1 and Fig. 2, this utility model also includes one for detecting the angle detection device of the rotational angle of brake camshaft 2.This utility model is arranged to the angle detection device of the rotational angle of detection brake camshaft 2, when there is braking gap, in braking procedure, brake camshaft 2 just can turn to the position that oversteps the extreme limit, after angle detection device detects that brake camshaft 2 rotates more than extreme position, control system will remind user to change compensation pad or shoe piece in time.Alerting pattern can be through buzzer to carry out audible alarm or carries out light prompting by alarm lamp.Preferably, angle detection device includes arc groove 22 and sensor 7, and arc groove 22 is circumferentially distributed along brake camshaft 2, and the brake cover of drum brake is provided with a sensor 7 corresponding with arc groove 22.When rotating camshaft 2 and rotating in prescribed limit, sensor 7 only detects arc groove 22, and signal will not change.When rotating camshaft 2 rotational angle beyond prescribed limit, sensor 7 will detect the surface of brake camshaft 2, thus can determine whether out to be present in braking gap, control system will remind user.
Further, shoe piece 1 is provided with the alarming sign for pointing out the limit of wear, for instance can the recessed warning groove 15 in limit of wear place of friction facing 11 on shoe piece 1, and a warning groove 15 is painted red using as alarming sign.When the friction facing 11 on shoe piece 1 weares and teares in time warning groove 15, just can not be further continued for using, it is necessary to change shoe piece 1 or friction facing 11 in time.
This utility model can pass through to compensate pad 4 stably and firmly compensate braking gap, and compensates pad 4 and deposit with car, not easily loses, its simple in construction and easy to use.
The aforementioned description to specific illustrative embodiment of the present utility model illustrates that and the purpose of illustration.These describe and are not wishing to be defined to this utility model disclosed precise forms, and it will be apparent that according to above-mentioned instruction, it is possible to carry out much changing and change.Purpose exemplary embodiment selected and describe is in that to explain certain principles of the present utility model and practical application thereof, so that those skilled in the art is capable of and utilizes various different exemplary of the present utility model and various different selection and change.Scope of the present utility model is intended to be limited by claims and equivalents thereof.
Claims (10)
1. the convenient drum brake adjusted and compensate braking gap, comprising: brake rim, brake cover, two shoe pieces and brake camshaft, the head end of described brake camshaft is one is rectangular-shaped flat piece；One end of two described shoe pieces is hinged, and the head end of described brake camshaft is located between the other end of two described shoe pieces；It is characterized in that, also include:
Two lid shells, two these lid shells are respectively can be sheathed on the other end of a described shoe piece in the way of slide anteroposterior, and this lid shell each is locked by a retaining mechanism；The front end of this lid shell each is provided with the baffle plate between the other end being located in described shoe piece and the head end of described brake camshaft；And
Compensate pad, between the other end and the described baffle plate of described shoe piece, compensate braking gap by this compensation pad of sandwiched.
2. the convenient drum brake adjusted and compensate braking gap according to claim 1, it is characterized in that, the front portion of described lid shell is one be provided with the lid shell head that the hollow of opening is rectangular-shaped in rear end, described lid shell is by described lid shell head can be sheathed on the other end of described shoe piece in the way of slide anteroposterior, and the header board of described lid shell head is described baffle plate.
3. the convenient drum brake adjusted and compensate braking gap according to claim 2, it is characterised in that described retaining mechanism includes:
Tailgate, the rear portion of described lid shell is provided with this tailgate of two distributions symmetrical above and below, and this tailgate each offers an elongated hole along the longitudinal direction；
Crossing nail, itself and described elongated hole are arranged in correspondence with in the other end of described shoe piece；
Lock-screw, its elongated hole passing two described tailgates and described nail excessively；And
Locking nut, it is engaged being connected with described lock-screw.
4. the convenient drum brake adjusted and compensate braking gap according to claim 3, it is characterised in that described compensation pad is provided with the specification of different-thickness；And the thickness specification of described compensation pad includes 0.5mm, 1mm, 2mm, 3mm, 4mm.
5. the convenient drum brake adjusted and compensate braking gap according to claim 4, it is characterised in that the other end of described shoe piece is provided with the graduation mark corresponding with described tailgate.
6. the convenient drum brake adjusted and compensate braking gap according to claim 1, it is characterised in that the inner side of described shoe piece is provided with for depositing the cavity of described compensation pad.
7. the convenient drum brake adjusted and compensate braking gap according to claim 6, it is characterised in that the centre of described compensation pad is provided with through hole, can be fixed within described cavity by screw.
8. the convenient drum brake adjusted and compensate braking gap according to claim 7, it is characterised in that the sidewall of described cavity takes the shape of the letter U shape.
9. the convenient drum brake adjusted and compensate braking gap according to claim 1, it is characterised in that also include for detecting the angle detection device of the rotational angle of described brake camshaft.
10. the convenient drum brake adjusted and compensate braking gap according to claim 1, it is characterised in that be provided with the alarming sign for pointing out the limit of wear on described shoe piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620099687.3U CN205350157U (en) | 2016-02-01 | 2016-02-01 | Drum brake in convenient adjustment and compensation brake clearance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620099687.3U CN205350157U (en) | 2016-02-01 | 2016-02-01 | Drum brake in convenient adjustment and compensation brake clearance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205350157U true CN205350157U (en) | 2016-06-29 |
Family
ID=56178100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620099687.3U Withdrawn - After Issue CN205350157U (en) | 2016-02-01 | 2016-02-01 | Drum brake in convenient adjustment and compensation brake clearance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205350157U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105508476A (en) * | 2016-02-01 | 2016-04-20 | 张斌 | Drum brake convenient for adjusting and compensating brake clearance |
| CN110100111A (en) * | 2016-12-20 | 2019-08-06 | 福乐尼·乐姆宝公开有限公司 | The device being adjusted for the gap to drum brake |
-
2016
- 2016-02-01 CN CN201620099687.3U patent/CN205350157U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105508476A (en) * | 2016-02-01 | 2016-04-20 | 张斌 | Drum brake convenient for adjusting and compensating brake clearance |
| CN110100111A (en) * | 2016-12-20 | 2019-08-06 | 福乐尼·乐姆宝公开有限公司 | The device being adjusted for the gap to drum brake |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160629 Effective date of abandoning: 20171107 |
|
| AV01 | Patent right actively abandoned |