CN102189523A - Opening method and special opening tool for drum brake - Google Patents
Opening method and special opening tool for drum brake Download PDFInfo
- Publication number
- CN102189523A CN102189523A CN201110089385XA CN201110089385A CN102189523A CN 102189523 A CN102189523 A CN 102189523A CN 201110089385X A CN201110089385X A CN 201110089385XA CN 201110089385 A CN201110089385 A CN 201110089385A CN 102189523 A CN102189523 A CN 102189523A
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- drum brake
- cap
- brake
- card base
- type card
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Abstract
The invention provides an opening method and a special opening tool for a drum brake. The opening method is executed by the following steps of: a, dismantling a tyre nut and a side cap bolt of a fixed side cap down by using a wrench, taking a tyre and the fixed side cap down; b, drawing a half axle gear and a half axle out; c, unlocking a lock plate; d, dismantling a nut of a fixed connecting plate, taking the fixed connecting plate down; and e, clamping an external screw cap and an internal screw cap by a U-shaped clamp pin by using a special opening tool for the drum brake, sleeving sleeving heads of the U-shaped clamp pin by using the wrench for rotatably dismantling, when the outer edge of the external screw cap supports against a wheel planetary gear in a dismantling process, outwards moving the connecting disk, a shaft head, a reducer shell and the drum brake simultaneously; and f, when the outer edge of a taper sleeve supports against the internal screw cap, repeating the step e and completing the opening of the drum brake.
Description
Technical field:
The present invention relates to drum brake, specifically a kind of open method and special opening instrument of drum brake of the heavy-duty off-road vehicle that has a hub reduction gear.
Background technology:
Brake is commonly called as brake, lock.Be to make automobile in traveling process, need the total member that slows down or stop.Brake is divided into running brake (service brake), EPB (parking brake).The service brake parking braking system of unifying is that each automobile is all prerequisite.The used friction brake of automobile can be divided into drum-type and disc type two big classes at present.For heavy goods vehicles, because the speed of a motor vehicle generally is not very high, the durable degree of brake shoe is also than disk brake height, low cost and meet traditional design, and therefore many heavy goods vehicles are still used the design of four-wheel drum-type so far.Drum brake also is block brake, compresses on braked wheel by brake block and realizes braking.Now the main flow of drum brake is an internal expanding type, and its brake block (brake shoe) is positioned at the braked wheel inboard, and brake block outwards opens in brake, and the inboard of friction catch wheel reaches the purpose of brake.The drum brake of heavy-duty off-road vehicle is added with hub reduction gear usually, increases by deceleration and turns round, the ability that the reinforcement vehicle passes through at complicated highway section.
The equipment of western exploration mostly is heavy-duty off-road vehicle, construction environment complexity and very severe, and vehicle often operates in desert, Gobi desert, marsh, therefore can cause the corrosion of tire bolt and brake drum; Drum brake is poor because of heat dispersion, can assemble a large amount of heats in braking procedure, causes brake block and wheel hub that very complicated distortion easily takes place under temperatures involved, is easy to generate fading of brake and the phenomenon that flutters, and causes that retardation efficiency descends; In addition, drum brake in use for some time, want the space of regular adjustment brake shoe, even will split out whole brake rim, the brake powder in cleaning is accumulated in, greasy filth and change bearing because of the seal of aging, damage and serious wear, oil sealing seat ring etc.But in the middle of the operation process of maintenance, maintenance drum brake, run into the problem that is difficult to unlatching through regular meeting.Use existing maintenance technique, usually adapted gas welding of operation field not only causes potential safety hazard, and disassembles the part parts that get off and can not reuse, and not only cause waste on material, and maintenance cycle is longer, and the human and material resources of employing are also bigger.
Be example now with the husky top wagon drill of WTC5120TSM back axle brake.Mainly form: brake assembly (Fig. 2) and hub reduction gear assembly (Fig. 3) by the two large divisions.Speed reducer assembly is installed in the brake drum.The step of disassembling according to original technology: lug nut → boss bolt → wheel hub → limit bonnet bolt → limit lid → jump ring → axle shaft gear → semiaxis → decelerator bolt → decelerator → colored outward cap → locking plate → interior colored cap → tapered sleeve → fluted disc → spindle nose.Can use the eave tile spanner when disassembling colored cap.But because tire bolt and wheel hub screw and decelerator screw are interference fit, working environment extremely badly causes the part corrosion in addition, causes wheel hub normally to disassemble, and follow-up work also just can't normally be carried out.Therefore employing gas welding usually disassembles by force.How to increase work efficiency, avoid disassembling the damage of parts in the process, reducing maintenance cost to greatest extent is our urgency problems to be solved.
Summary of the invention:
The present invention is intended to overcome the deficiency that prior art exists, and one of purpose provides a kind of open method of drum brake, and what solve that the prior art open method exists causes damage of components and the high problem of maintenance cost; Two of purpose provides the employed special opening instrument of this open method, solves the problem of the special opener that lacks drum brake of prior art existence, can dismantle the flower cap under the situation of not disassembling wheel hub and decelerator.
One of purpose of the present invention can realize by following technical measures:
This open method carries out as follows:
A, pull down with lug nut and with the limit bonnet bolt of fixed edge lid, take off tire and fixed edge lid with spanner;
B, extraction axle shaft gear and semiaxis;
C, with the locking plate release;
D, the nut of fixedly connected dish is pulled down, taken off fixedly connected dish;
The special opening instrument of e, use drum brake, U type card base is blocked outer flower cap and interior colored cap simultaneously, pulloverly be rotated dismounting with what spanner entangled U type card base again, in the unloading process when outside the outer rim of flower cap when withstanding wheel limit planetary gear, terminal pad, spindle nose, reducer shell, brake drum are outwards moved simultaneously;
F, flower repeats the e step during cap again in the outer rim of tapered sleeve is withstood, and finishes the unlatching of drum brake.
Two of purpose of the present invention can realize by following technical measures:
The structure of this opener is the inner U type card base of offering Ka Tai, in the non-openend arranged outside of U type card base be convenient to that spanner puts and screws pullover is arranged.
Two of purpose of the present invention also can realize by following technical measures:
Flower cap diameter in the Ka Tai that establishes in the described U type card base is fit near inner width, the width of close external margin are fit to outer flower cap diameter; Described U type card base length is greater than 2 times of outer flower cap thickness.
The present invention compared with prior art has following beneficial effect:
The present invention by special use U type card base opener and use this opener to open drum brake, and adopt new disassembling method: lug nut → limit bonnet bolt → limit lid → semiaxis → locking plate (release) → terminal pad nut → flower cap.Effectively solve drum brake common unlatching difficult problem in the maintenance operation.Not only shortened the cycle of maintenance in time, and saved human and material resources, and be in disassembling process, parts are excellent also can to come into operation once more, reduces maintenance cost to greatest extent, and has stopped the potential safety hazard of operation field.
Description of drawings:
Fig. 1 is an opening device plane of the present invention;
Fig. 2 is the STRUCTURE DECOMPOSITION schematic diagram of the hub reduction gear assembly that is connected with drum brake;
Fig. 3 is the STRUCTURE DECOMPOSITION schematic diagram of drum brake assembly.
The specific embodiment:
Get off and the present invention is elaborated with reference to accompanying drawing.
Among the figure: 1-terminal pad nut, 2-terminal pad, 3-brake drum, 4-brake drum screw, 5-limit bonnet bolt, 6-limit lid, 7-reducer shell, 8-reducer shell screw, 9-axle shaft gear, 10-tapered sleeve, 11-fluted disc, 12-wheel limit outer bearing, 13-spindle nose screw, 14-spindle nose, 15-lug nut, 16-tire bolt, 17-wheel limit inner bearing, 18-wheel limit oil sealing, 19-wheel limit planetary gear, 20-spend flower cap, 23-semiaxis in cap, 21-locking plate, the 22-outward.
Embodiment 1:
This open method of the open method of this drum brake carries out as follows
A, at first pull down with lug nut 15 and with the limit bonnet bolt 5 of fixed edge lid 6 with spanner; This moment, the dismounting of tire and fixed edge lid finished; Because tire bolt 16 is an interference fit with brake drum screw 4, reducer shell screw 8 and spindle nose screw 13, because of reasons such as corrosions, brake drum 3 lags behind and dismantles;
B, extract axle shaft gear 9 and semiaxis 23 out then;
C, with locking plate 21 releases;
The nut 1 of d, the fixedly connected dish 2 of dismounting is pulled down fixedly connected dish;
E, use U type card base opening device block outer flower cap 20 (having locking effect) and interior colored cap 22 (compressing the gap that fluted disc 11 is adjusted wheel limit outer bearings 12 and wheel limit inner bearing 17 by tapered sleeve 10) simultaneously with card base, pulloverly be rotated dismounting with what spanner entangled U type card base again, in the unloading process when outside the outer rim of flower cap 20 when withstanding wheel limit planetary gear 19, terminal pad 2, spindle nose 14 (wheel limit inner bearing 17 is embedded on the spindle nose 14 simultaneously with wheel limit oil sealing 18), reducer shell 7, brake drum 3 are outwards moved simultaneously;
F, flower repeats the e step during cap 22 again in the outer rim of tapered sleeve 10 is withstood, and also finally finishes the unlatching of drum brake until the dismounting that is hub reduction gear assembly and drum brake of two total members.
Embodiment 2:
The special opening instrument of this drum brake, its structure is the inner U type card base of offering Ka Tai, adopts Dao Yici b/F8L413F/W valve, valve is welded into " U " type, in the non-openend arranged outside of U type card base be convenient to that spanner puts and screws pullover arranged, be convenient to operation.Flower cap diameter in the Ka Tai that establishes in the described U type card base is fit near inner width, the width of close external margin are fit to outer flower cap diameter; Described U type card base length is greater than 2 times of outer flower cap thickness.Be convenient to two flowers and emit dismounting (material therefor is the waste and old spare and accessory parts that change) simultaneously.
The above embodiment is a kind of of the more preferably concrete embodiment of the present invention, and common variation that those skilled in the art carries out in the technical solution of the present invention scope and replacement all should be included in protection scope of the present invention.
Claims (3)
1. the open method of a drum brake is characterized in that this open method carries out as follows:
A, pull down with lug nut and with the limit bonnet bolt of fixed edge lid, take off tire and fixed edge lid with spanner;
B, extraction axle shaft gear and semiaxis;
C, with the locking plate release;
D, the nut of fixedly connected dish is pulled down, taken off fixedly connected dish;
The special opening instrument of e, use drum brake, U type card base is blocked outer flower cap and interior colored cap simultaneously, pulloverly be rotated dismounting with what spanner entangled U type card base again, in the unloading process when outside the outer rim of flower cap when withstanding wheel limit planetary gear, terminal pad, spindle nose, reducer shell, brake drum are outwards moved simultaneously;
F, flower repeats the e step during cap again in the outer rim of tapered sleeve is withstood, and finishes the unlatching of drum brake.
2. the special opening instrument of a drum brake is characterized in that the structure of this opener is the inner U type card base of offering Ka Tai, in the non-openend arranged outside of U type card base be convenient to that spanner puts and screws pullover is arranged.
3. the special opening instrument of a kind of drum brake according to claim 2 is characterized in that the Ka Tai that establishes in the described U type card base spends the cap diameter in being fit near inner width, and the width of close external margin is fit to outer flower cap diameter; Described U type card base length is greater than 2 times of outer flower cap thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110089385 CN102189523B (en) | 2011-04-11 | 2011-04-11 | Opening method and special opening tool for drum brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110089385 CN102189523B (en) | 2011-04-11 | 2011-04-11 | Opening method and special opening tool for drum brake |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102189523A true CN102189523A (en) | 2011-09-21 |
| CN102189523B CN102189523B (en) | 2012-12-19 |
Family
ID=44598840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110089385 Expired - Fee Related CN102189523B (en) | 2011-04-11 | 2011-04-11 | Opening method and special opening tool for drum brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102189523B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4831904A (en) * | 1988-01-19 | 1989-05-23 | Ron Agins | Disc brake tool |
| CN2059914U (en) * | 1989-12-28 | 1990-08-01 | 李飞 | Opener for bottle cap |
| JPH08216036A (en) * | 1995-02-21 | 1996-08-27 | Fukumitsu Kk | Spanner for opening/closing battery plug |
| JPH0941766A (en) * | 1995-08-01 | 1997-02-10 | Takeshi Takahama | Security type front door opening means |
| CN201287308Y (en) * | 2008-09-25 | 2009-08-12 | 上海宝钢设备检修有限公司 | Valve rod of coal gas flow control valve and valve end assembling-disassembling tool |
| CN201500962U (en) * | 2009-08-21 | 2010-06-09 | 上海宝钢汽车检测修复有限公司 | Quick disassembling device of large vehicle brake drum |
-
2011
- 2011-04-11 CN CN 201110089385 patent/CN102189523B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4831904A (en) * | 1988-01-19 | 1989-05-23 | Ron Agins | Disc brake tool |
| CN2059914U (en) * | 1989-12-28 | 1990-08-01 | 李飞 | Opener for bottle cap |
| JPH08216036A (en) * | 1995-02-21 | 1996-08-27 | Fukumitsu Kk | Spanner for opening/closing battery plug |
| JPH0941766A (en) * | 1995-08-01 | 1997-02-10 | Takeshi Takahama | Security type front door opening means |
| CN201287308Y (en) * | 2008-09-25 | 2009-08-12 | 上海宝钢设备检修有限公司 | Valve rod of coal gas flow control valve and valve end assembling-disassembling tool |
| CN201500962U (en) * | 2009-08-21 | 2010-06-09 | 上海宝钢汽车检测修复有限公司 | Quick disassembling device of large vehicle brake drum |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102189523B (en) | 2012-12-19 |
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Granted publication date: 20121219 Termination date: 20130411 |