CN203472826U - Built-in wet-type brake wheel-side-assemble type drive axle - Google Patents
Built-in wet-type brake wheel-side-assemble type drive axle Download PDFInfo
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- CN203472826U CN203472826U CN201320600243.XU CN201320600243U CN203472826U CN 203472826 U CN203472826 U CN 203472826U CN 201320600243 U CN201320600243 U CN 201320600243U CN 203472826 U CN203472826 U CN 203472826U
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Abstract
Provided is a built-in wet-type brake wheel-side-assemble type drive axle. A planet carrier supports a planet pinion shaft with planet gears, inner gear rings are arranged on the outer sides of the planet gears, an output shaft is connected to the planet carrier, a cartridge seal is mounted on a mounting seam allowance arranged between the outer side of a brake shell and the inner side of a hub, two 20-degree tilted troughs are formed in the position, close to the cartridge seal, of the inner side of the hub, driving sheets and driven sheets are arranged between a pressure plate and a piston in the axial direction in sequence at intervals, arc lugs and square lugs are evenly distributed in the circumferential direction on the outer edges of the driven sheets, and notches matched with the lugs are formed in the inner wall of a brake hub body. The built-in wet-type brake wheel-side-assemble type drive axle has the advantages that the structure is simple, the hub with low brake rotating speed reduces brake heat generating greatly, and the reliability of the drive axle is improved; detection holes are formed, the abrasion situations of the driving sheets and the driven sheets can be detected at any time, timely replacement can be carried out, and driving safety of a vehicle is guaranteed; a planetary reducer is an assembled type and is convenient to machine and good in maintainability, and the problem that maintenance cannot be carried out due to the fact that no special tool is available in remote areas is solved.
Description
Technical field
The utility model relates to a kind of construction machinery and equipment drive axle, is specifically related to a kind of built-in wet braking wheel limit build-up type drive axle.
Background technology
At present, the applying working condition of most of construction machinery and equipment is relatively severe, frequently converts in the course of the work the operations such as gear and forward-reverse, makes brake system loss seriously and can produce amount of heat; Weight, the volume of wheel limit assembly all parts are relatively large, are difficult for processing, and maintainability is poor, particularly in remote districts, lacks special tool, disassembles with maintenance difficulty larger.Oil-immersed multi-disk brake is compared to dry brake, has long, the advantage such as brake safe is reliable of good heat dissipation effect, service life, in existing construction machinery and equipment, is widely used.The several larger parts that limit assembly is taken turns by tradition in build-up type wheel limit are divided into a plurality of small parts and assemble, and are easy to processing, and maintainability is better.
In the prior art, wet-type braking driving axle also has many application both at home and abroad, as a kind of " wet-type braking driving axle " of external certain company's exploitation, this drive axle mainly includes axle case assy, main gearbox assembly (comprising diff), wheel reduction gear assembly and oil-immersed multi-disk brake, semiaxis, oil pipe assembly etc. and partly forms.Semiaxis one end is connected with main reduction gear, and the other end is connected with the sun wheel of wheel reduction gear, between internally toothed annulus and planetary wheel carrier, is connected with oil-immersed multi-disk brake.
Oil-immersed multi-disk brake is comprised of piston, friction pair, braking housing, platen etc., and braking housing and axle housing link together, planetary wheel carrier and wheel hub spline joint, piston-ring slot and brake the work chamber that forms brake-pressure oil between housing.When the oil inlet of hydraulic oil by braking housing enters after inner chamber, under the effect of oil pressure, promoting piston axially moves, make compacting mutually between friction pair, between braking housing and planetary wheel carrier, form friction drag apart from the rotation of restriction wheel hub, and then complete braking.The planetary wheel carrier of this drive axle be four planet axis and output shaft as a solid forging, require to have higher FMT; The Geometrical Tolerance Principle such as right alignment of four planet axis of this pinion carrier are very high, process very difficult; Planetary wheel carrier weight reaches six or seven ten kilograms, and very heavy, detachable maintaining needs corresponding tool, especially in remote districts, has maintained certain difficulty.
Summary of the invention
The purpose of this utility model is to provide a kind of built-in wet braking wheel limit build-up type drive axle that is easy to processing, convenient for maintaining maintenance and can effectively reduces braking heating.
The technical solution of the utility model is: main gearbox assembly is placed in axle case assy, main gearbox assembly fifth wheel side reducer assembly, wheel reduction gear assembly comprises semiaxis, planetary reduction gear, brake hub body, braking housing, oil-immersed multi-disk brake, wheel hub, on semiaxis, cover has planetary reduction gear, semiaxis one end connects main gearbox assembly, the output shaft of other end connecting band wheel hub, the brake hub body that band detects hole is fixedly connected with axle case assy, oil-immersed multi-disk brake is arranged at braking housing, in the inner chamber forming between brake hub body and planetary reduction gear, it is characterized in that: planetary reduction gear comprises output shaft, satellite gear, planet axis, planetary wheel carrier assembly, internally toothed annulus, planetary wheel carrier assembly is comprised of planetary wheel carrier and planetary wheel carrier end cap, the planet axis of planetary wheel carrier support belt satellite gear, there is internally toothed annulus in the outside of satellite gear, output shaft is connected with planetary wheel carrier, on the installation seam arranging between braking hull outside and wheel hub inner side, box-type oil seal is installed, wheel hub inner side offers the skewed slot of two 20 ° near box-type oil seal place, oil-immersed multi-disk brake comprises piston, platen, rotating plate, driven disc, return is folded spring, piston is arranged in braking housing, between piston and braking housing, be provided with the folded spring of return, platen one end abuts against on internally toothed annulus, rotating plate and driven disc are arranged at intervals between platen and piston vertically successively, the female splines of rotating plate and output shaft spline joint, the outer of driven disc is circumferentially evenly equipped with circular arc and square ear seat, on brake hub body inwall, be provided with the breach matching with this ear seat.
The medial extremity of braking housing has first shaft shoulder and second shaft shoulder extending vertically, first shaft shoulder is supported on output shaft by clutch shaft bearing, second shaft shoulder is by the second bearings on wheel hub, and the housing oil hole in braking housing is connected with the hub body oil hole in brake hub body.
The utility model has the advantages that: the ingenious wheel reduction gear assembly inner space that utilizes of oil-immersed multi-disk brake, simple in structure, and the lower wheel hub of braked speed, greatly reducing braking heating, drive axle reliability improves; Have and detect hole, can detect at any time rotating plate and driven disc wear pattern, change in time rotating plate and driven disc, guarantee vehicle driving safety; The planetary reduction gear of wheel reduction gear assembly is build-up type, and planetary reduction gear is divided into several widgets, and processing is convenient, and maintainability is good, has solved the problem that cannot keep in repair without special tool from far-off regions.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is the A portion enlarged drawing of Fig. 1.
1 main gearbox assembly in figure, Bridge 2 housing assy, 21 axle housings, 3 wheel reduction gear assemblies, 31 semiaxis, 32 planetary reduction gears, 33 brake hub bodies, 34 oil-immersed multi-disk brakes, 35 braking housings, 36 wheel hubs, 37 end caps, 38 clutch shaft bearings, 39 second bearings, 321 output shafts, 322 planetary wheel carriers, 323 planet axis, 324 internally toothed annuluss, 325 satellite gears, 326 planetary wheel carrier end caps, 331 detect hole, 332 plug screws, 333 brake hub body oil holes, 341 pistons, 342 rotating plates, 343 driven discs, 344 platens, 345 returns are folded spring, 351 first shaft shoulders, 352 second shaft shoulders, 353 braking housing oil holes, 361 box-type oil seals, 362 jam nuts, skewed slot 363.
The specific embodiment
Embodiment: the axle housing 21 of axle case assy 2 is integral axle housing, main gearbox assembly 1 is placed in axle case assy 2, main gearbox assembly 1 fifth wheel side reducer assembly 3, wheel reduction gear assembly 3 comprises semiaxis 31, planetary reduction gear 32, brake hub body 33, braking housing 35, oil-immersed multi-disk brake 34, wheel hub 36, on semiaxis 31, cover has planetary reduction gear 32, semiaxis 31 one end connect main gearbox assembly 1, other end fifth wheel side reducer assembly 3, the brake hub body 33 that band detects hole 331 is fixedly connected with axle case assy 2, oil-immersed multi-disk brake 34 is arranged at braking housing 35, in the inner chamber forming between brake hub body 33 and planetary reduction gear 32, planetary reduction gear 32 comprises output shaft 321, satellite gear 325, planet axis 323, planetary wheel carrier assembly, internally toothed annulus 324, planetary wheel carrier assembly is comprised of planetary wheel carrier 322 and planetary wheel carrier end cap 326, the planet axis 323 of planetary wheel carrier 322 support belt satellite gears 325, there is internally toothed annulus 324 in the outside of satellite gear 325, output shaft 321 is connected with planetary wheel carrier 322, on the installation seam arranging between braking housing 35 outsides and wheel hub 36 inner sides, box-type oil seal 361 is installed, wheel hub 36 inner sides offer the skewed slot 363 of two 20 ° near box-type oil seal 361 places, oil-immersed multi-disk brake 34 comprises piston 341, platen 344, rotating plate 342, driven disc 343, return is folded spring 345, piston 341 is arranged in braking housing 35, between piston 341 and braking housing 35, be provided with the folded spring 345 of return, platen 344 one end abut against on internally toothed annulus 324, rotating plate 342 and driven disc 343 are arranged at intervals between platen 344 and piston 341 vertically successively, the female splines of rotating plate 342 and output shaft 321 spline joints, the outer of driven disc 343 is circumferentially evenly equipped with circular arc and square ear seat, on brake hub body 33 inwalls, be provided with the breach matching with this ear seat.
The medial extremity of braking housing 35 has first shaft shoulder 351 and second shaft shoulder 352 extending vertically, first shaft shoulder 351 is supported on output shaft 321 by clutch shaft bearing 38, second shaft shoulder 352 is supported on wheel hub 36 by the second bearing 39, and the brake hub body oil hole 333 in brake hub body 33 is connected with the braking housing oil hole 353 in braking housing 35.
This drive axle comprises axle case assy 2, main gearbox assembly 1, wheel reduction gear assembly 3, the outputting power of main gearbox assembly 1 exports wheel reduction gear assembly 3 to through semiaxis 31, wheel reduction gear assembly 3 outputting powers are to wheel hub 36, be placed in the oil-immersed multi-disk brake 34 of wheel reduction gear assembly 3, be arranged between brake hub body 33 and output shaft 321, brake hub body 33 is fixedly connected with axle case assy 2, the external tooth of the some driven discs 343 of oil-immersed multi-disk brake 34 is embedded in braking axle housing 35 grooves, the internal tooth of some rotating plates 342 and output shaft 321 spline joints, output shaft 321 and wheel hub 36 spline joints, oil-immersed multi-disk brake 34 braking output shafts 321 and then brake hub 36 complete drive axle braking.
In the rotating plate 342 of oil-immersed multi-disk brake 34 and the cavity between driven disc 343 sides and internally toothed annulus 324, be provided with platen 344, in cavity between rotating plate 342 and driven disc 343 another sides and braking housing 35, be provided with the piston 341 with annular groove, between piston 341 and braking housing 35, be provided with the folded spring 345 of return, on brake hub body 33, offer the brake hub body oil hole 333 of brake-pressure oil, braking housing and brake hub body have the oil inlet passage of pressure oil, so that entering piston 341 annular grooves, pressure oil promotes piston axial motion, compress rotating plate 342 and driven disc 343 to platen 344, brake hub 36 completes braking.
Wheel reduction gear assembly 3 is specially planetary reduction gear, semiaxis 31 is that power input part, output shaft 321 are power output part, internally toothed annulus 324 male spliness are connected with brake hub body 33 female spliness, output shaft 321 adopts 10 bolts to be fixedly connected with 8 screws with planetary wheel carrier 322, form planet output block, output shaft 321 and wheel hub 36 spline joints.
Planetary wheel carrier assembly is divided into two large parts, by planetary wheel carrier 322, adopts 4 bolts to be fixedly connected with planetary wheel carrier end cap 326, and four planet axis 323 adopt screw to be fixedly connected with planetary wheel carrier 322.
The brake hub body 33 of the oil-immersed multi-disk brake 34 being connected with axle housing 21 offers the detection hole 331 being communicated with inside braking cavity volume, and the outer end of detecting hole 331 is provided with detouchable plug screw 332.Under normal condition, plug screw 332 screws in and detects in hole 331, stops that extraneous dust greasy dirt enters, maintainer can screw out plug screw 332 at any time, detect interval or the length of two adjacent driven discs 343, understand friction pair wear pattern, and change in time friction pair according to actual conditions.
As shown in Figure 1, this drive axle comprises axle case assy 2, main gearbox assembly 1, wheel reduction gear assembly 3, wheel reduction gear assembly 3 comprises semiaxis 31, planetary reduction gear 32, brake hub body 33, braking housing 35, oil-immersed multi-disk brake 34, wheel hub 36, end cap 37, drive axle is the symmetrical structure centered by the line of centers of main gearbox assembly 1, therefore only represented wheel reduction gear assembly 3 structures on one side in figure.Main gearbox assembly 1 is placed in axle case assy 2, semiaxis 31 one end and the main finishing bevel gear cuter spline joint that subtracts output; Center cross is split type, by four bearing pins and differential gear box, is fixedly connected with differential action, and in addition, the annexation of differential design principle and its both sides semiaxis is same as the prior art, no longer describes in detail here.
The axle housing 21 of axle case assy 2 is integral axle housing, master subtracts assembly 1 and is placed in axle case assy 2, as shown in Figure 1, axle housing 21 two ends adopt bolt to be fixedly connected with pin with brake hub body 33, semiaxis 31 other ends are processed with gear, and making semiaxis 31 and sun wheel is an integral structure, and semiaxis 31 also plays the effect of sun wheel, describedly be connected with the planetary wheel of planetary reduction gear 32, planetary reduction gear 32 outputting powers are to wheel hub 36.
Wheel reduction gear assembly 1 structure, output shaft 321 and planetary wheel carrier 322 are separated, wherein, planetary wheel carrier 322 is also split-type structural, has solved the problem of processing difficulties, guaranteed working accuracy, and traditional bulky elements is divided into several widgets, and maintainability is better, if certain part or a few damage of components, can only change these damage parts, commonality is also better.
Braking housing 35 is fixedly connected with brake hub body 33, the medial extremity of braking housing 35 has first shaft shoulder 351 and second shaft shoulder 352 extending vertically, first shaft shoulder 351 is supported on output shaft 321 by clutch shaft bearing 38, second shaft shoulder 352 is supported on wheel hub 36 by the second bearing 39, piston 341 is arranged on braking housing 35 inside, inner walls and piston 341 grooves form closed inner chamber, brake-pressure oil enters in enclosed cavity by brake hub body oil hole 333 and the braking housing oil hole 353 of brake hub body 33 and braking housing 35 inside, promote piston 341 pressing frictions secondary, complete braking.
At braking housing 35, in the inner chamber forming between brake hub body 33 and planetary reduction gear 32, be equipped with oil-immersed multi-disk brake 34, oil-immersed multi-disk brake 34 is by piston 341, rotating plate 342, driven disc 343, the folded spring 345 of platen 344 and return forms, piston 341 is arranged in braking housing 35, between piston and braking housing, be provided with the folded spring 345 of return, the folded spring of return one end is near on piston cavity, the other end is with bolts on braking housing, platen 344 one end abut against on internally toothed annulus 324, some rotating plates 342 and some driven discs 343 are arranged at intervals between platen 344 and piston 341 vertically successively.Some rotating plates 342 have female splines, and with output shaft 321 spline joints, the outer of some driven discs 343 is circumferentially evenly equipped with circular arc and square ear seat, is provided with the breach matching with this ear seat on brake hub body 33 inwalls.
On brake hub body 33 position corresponding with rotating plate 342 and driven disc 343, offer and detect hole 331, the external side end that detects hole 331 is provided with detouchable plug screw 332.Under normal circumstances, plug screw 332 is tightened on and detects in hole 331, prevents that external dust greasy dirt from entering; When maintainer needs repairing maintenance drive axle, plug screw 332 can be screwed out, measure the distance between adjacent two driven discs or measure the total length of some driven discs, and compare with theoretical value, determine friction pair wear pattern, change in time rotating plate 342 and driven disc 343, guarantee vehicle driving safety.
Between braking housing 35 outsides and wheel hub 36 inner sides, be provided with installation seam, cartridge seal 361 is installed, prevent from taking turns limit oil seepage phenomena, wheel hub 36 inner sides offer the skewed slot of two 20 ° near oil sealing place, play the effect of a kind of labyrinth, can effectively stop external dust and the infringement of greasy dirt to cartridge seal.
The adjusting of the preload of clutch shaft bearing 38 and the second bearing 39 is completed by jam nut 362, and jam nut 362 screws in the outside thread of output shaft 341 by negative thread, compresses wheel hub 36 and then compresses clutch shaft bearing 38 and the second bearing 39.
Claims (2)
1. a built-in wet braking is taken turns limit build-up type drive axle, main gearbox assembly is placed in axle case assy, main gearbox assembly fifth wheel side reducer assembly, wheel reduction gear assembly comprises semiaxis, planetary reduction gear, brake hub body, braking housing, oil-immersed multi-disk brake, wheel hub, on semiaxis, cover has planetary reduction gear, semiaxis one end connects main gearbox assembly, the output shaft of other end connecting band wheel hub, the brake hub body that band detects hole is fixedly connected with axle case assy, oil-immersed multi-disk brake is arranged at braking housing, in the inner chamber forming between brake hub body and planetary reduction gear, it is characterized in that: planetary reduction gear comprises output shaft, satellite gear, planet axis, planetary wheel carrier assembly, internally toothed annulus, planetary wheel carrier assembly is comprised of planetary wheel carrier and planetary wheel carrier end cap, the planet axis of planetary wheel carrier support belt satellite gear, there is internally toothed annulus in the outside of satellite gear, output shaft is connected with planetary wheel carrier, on the installation seam arranging between braking hull outside and wheel hub inner side, box-type oil seal is installed, wheel hub inner side offers the skewed slot of two 20 ° near box-type oil seal place, oil-immersed multi-disk brake comprises piston, platen, rotating plate, driven disc, return is folded spring, piston is arranged in braking housing, between piston and braking housing, be provided with the folded spring of return, platen one end abuts against on internally toothed annulus, rotating plate and driven disc are arranged at intervals between platen and piston vertically successively, the female splines of rotating plate and output shaft spline joint, the outer of driven disc is circumferentially evenly equipped with circular arc and square ear seat, on brake hub body inwall, be provided with the breach matching with this ear seat.
2. a kind of built-in wet braking according to claim 1 is taken turns limit build-up type drive axle, it is characterized in that: the medial extremity of braking housing has first shaft shoulder and second shaft shoulder extending vertically, first shaft shoulder is supported on output shaft by clutch shaft bearing, second shaft shoulder is by the second bearings on wheel hub, and the housing oil hole in braking housing is connected with the hub body oil hole in brake hub body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320600243.XU CN203472826U (en) | 2013-09-27 | 2013-09-27 | Built-in wet-type brake wheel-side-assemble type drive axle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320600243.XU CN203472826U (en) | 2013-09-27 | 2013-09-27 | Built-in wet-type brake wheel-side-assemble type drive axle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203472826U true CN203472826U (en) | 2014-03-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320600243.XU Withdrawn - After Issue CN203472826U (en) | 2013-09-27 | 2013-09-27 | Built-in wet-type brake wheel-side-assemble type drive axle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203472826U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103496356A (en) * | 2013-09-27 | 2014-01-08 | 徐工集团工程机械股份有限公司科技分公司 | Assembly type drive axle of built-in wet type brake wheel edge |
| CN106740745A (en) * | 2017-02-06 | 2017-05-31 | 莱州亚通重型装备有限公司 | A kind of scraper wet-type braking driving axle |
-
2013
- 2013-09-27 CN CN201320600243.XU patent/CN203472826U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103496356A (en) * | 2013-09-27 | 2014-01-08 | 徐工集团工程机械股份有限公司科技分公司 | Assembly type drive axle of built-in wet type brake wheel edge |
| CN103496356B (en) * | 2013-09-27 | 2016-03-02 | 徐州徐工传动科技有限公司 | Built-in wet braking wheel limit build-up type drive axle |
| CN106740745A (en) * | 2017-02-06 | 2017-05-31 | 莱州亚通重型装备有限公司 | A kind of scraper wet-type braking driving axle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: XUZHOU XUGONG TRANSMISSION TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: TECHNOLOGY BRANCH OF XCMG ENGINEERING MACHINERY CO., LTD. Effective date: 20141231 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20141231 Address after: 221004 No. 8, Mount Blue Road, Xuzhou economic and Technological Development Zone, Jiangsu, Xuzhou Patentee after: Xuzhou Xu work transmission Science and Technology Ltd. Address before: 221004 No. 8, Mount Blue Road, Xuzhou Economic Development Zone, Jiangsu, China Patentee before: Technology Branch of XCMG Engineering Machinery Co., Ltd. |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20140312 Effective date of abandoning: 20160302 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20140312 Effective date of abandoning: 20160302 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |