CN112503156A - End transmission system for a front drive axle of an amphibious vehicle and front drive axle - Google Patents
End transmission system for a front drive axle of an amphibious vehicle and front drive axle Download PDFInfo
- Publication number
- CN112503156A CN112503156A CN202010913799.9A CN202010913799A CN112503156A CN 112503156 A CN112503156 A CN 112503156A CN 202010913799 A CN202010913799 A CN 202010913799A CN 112503156 A CN112503156 A CN 112503156A
- Authority
- CN
- China
- Prior art keywords
- gear
- planetary gear
- shaft
- tail end
- ring
- 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
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 54
- 230000000903 blocking effect Effects 0.000 claims abstract description 8
- 230000007246 mechanism Effects 0.000 claims description 29
- 238000006073 displacement reaction Methods 0.000 claims description 9
- 125000006850 spacer group Chemical group 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Images
Classifications
-
- 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
- F16H—GEARING
- F16H48/00—Differential gearings
- F16H48/06—Differential gearings with gears having orbital motion
- F16H48/08—Differential gearings with gears having orbital motion comprising bevel gears
-
- 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
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
- F16B39/24—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by means of washers, spring washers, or resilient plates that lock against the object
-
- 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
- F16H—GEARING
- F16H48/00—Differential gearings
- F16H48/38—Constructional details
-
- 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
- F16H—GEARING
- F16H48/00—Differential gearings
- F16H48/38—Constructional details
- F16H48/42—Constructional details characterised by features of the input shafts, e.g. mounting of drive gears thereon
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Arrangement And Driving Of Transmission Devices (AREA)
- Retarders (AREA)
Abstract
The invention provides a tail end transmission system for a driving front axle of an amphibious working machine. The knuckle housing includes a main body portion having a central bore through which the end drive shaft passes and a first outer surface. The first outer surface is provided with a first abutting surface and a second abutting surface. The front hub shell is provided with a first mounting surface, and a third abutting surface and a fourth abutting surface which are positioned on the first mounting surface. The gear ring seat comprises a gear ring seat limiting part, a gear ring seat blocking part and a gear ring seat fixing part, wherein the gear ring seat limiting part, the gear ring seat blocking part and the gear ring seat fixing part are arranged between the first mounting surface and the first outer surface, and the end surface of the gear ring seat limiting part is in contact with the second abutting surface. The first bearing and the second bearing are arranged between the first mounting surface and the first outer surface, and the first bearing is axially arranged between the first abutting surface and the third abutting surface. The second bearing is axially arranged between the fourth abutting surface and the gear ring seat blocking part.
Description
Technical Field
The invention relates to the technical field of agricultural machinery, and particularly provides a tail end transmission system with a gear ring seat for a front drive axle of an amphibious machine and the front drive axle.
Background
In the prior art, a bearing preload adjusting mechanism of a final drive system for driving a front axle mostly adjusts a torque through a lock nut, and fixes a front hub shell, a hub bearing, a gear ring and an adjusting shim to a knuckle shell. In order to apply a certain locking force, the locking nut is usually torque-set by setting a pretension with a torque wrench. This operation requires an additional tool to set the pretension in advance, which is cumbersome in process.
Disclosure of Invention
The invention aims to provide a drive front axle tail end transmission system capable of preventing the locking force of a bearing from being overlarge.
According to another aspect of the invention, the invention provides a differential assembly with a shaft sleeve connected with a tail end planet gear shaft.
The present invention provides an end drive system for an amphibious work machine drive front axle, comprising:
the tail part of the tail end transmission shaft is provided with gear teeth;
the steering knuckle shell comprises a main body part, wherein the main body part is provided with a central hole for a tail end transmission shaft to pass through and a first outer surface, and the outer first surface is provided with a first abutting surface and a second abutting surface;
the front hub shell is provided with a first mounting surface facing the first outer surface, and a third abutting surface and a fourth abutting surface which are positioned on the first mounting surface;
the gear ring seat comprises a gear ring seat limiting part, a gear ring seat blocking part and a gear ring seat fixing part, wherein the gear ring seat limiting part, the gear ring seat blocking part and the gear ring seat fixing part are arranged between a first mounting surface and a first outer surface;
the end cover comprises an end cover connecting part fixed on the front hub shell and a bottom end, and the end cover is connected with the front hub shell through the end cover connecting part to form an accommodating cavity;
the first bearing is arranged between the first mounting surface and the first outer surface and is axially arranged between the first abutting surface and the third abutting surface;
the second bearing is arranged between the first mounting surface and the first outer surface and is axially arranged between the fourth abutting surface and the inner surface of the gear ring seat blocking part;
and the locking nut fixes the gear ring seat, the first bearing, the second bearing and the front hub shell to the steering knuckle shell.
Preferably, the gear ring seat limiting part is connected with the steering knuckle shell through a spline.
Preferably, the tail end of the steering knuckle housing is provided with threads, and the lock nut is fixed on the steering knuckle housing through the tail end threads of the steering knuckle housing.
Furthermore, the end cover also comprises an end cover extension part extending from the bottom end of the end cover to the first bearing direction, and an end part mounting hole is formed in the axial direction of the end cover extension part.
Further preferably, the tail end transmission system further comprises a limiting mechanism, the limiting mechanism comprises a spacer ring, a lock ring, a check ring for a shaft and a tail end limiting block, the tail end transmission shaft controls axial displacement of the tail end transmission shaft through the spacer ring, the lock ring, the check ring for the shaft and the tail end limiting block at the gear ring, the spacer ring, the lock ring and the check ring for the shaft are sequentially arranged to limit axial displacement of the tail end transmission shaft to the inner side of the center of the front axle, the tail end limiting block is located in the front wheel hub shell to limit axial displacement of the tail end transmission shaft to the outer sides of two ends of the front axle, the limiting mechanism is simple and compact in structure, the inner space of the axle housing is utilized to the maximum extent, and the.
Furthermore, the tail end transmission system comprises a tail end planetary gear, a tail end planetary gear shaft, a gear ring and a fixing piece, wherein the tail end planetary gear is connected with the tail end planetary gear shaft, the tail end planetary gear is respectively meshed with the gear ring and the gear teeth of the tail end transmission shaft, and the tail end planetary gear shaft is fixed on the end cover.
Furthermore, the tail end of the tail end planet gear shaft is provided with a mounting hole, and the tail end planet gear shaft is fixed on the surface of the end cover through a liquid nitrogen cooling technology.
Further preferably, the ring gear is connected with the ring gear holder fixing portion.
It is worth to say that the planetary gear fixing part is a fixing bolt, a gasket and a fixing pin shaft, and the fixing bolt and the gasket are fixed on the planetary gear shaft through an end mounting hole in the end cover extension part.
It should be noted that the planet gear shaft and the gasket are also provided with positioning holes, and the fixed pin shaft fixes the gasket on the planet gear shaft through the positioning holes, so that the gasket is prevented from rotating along with the rotation of the bolt.
The other technical scheme applied by the invention is as follows:
the tractor drive front axle includes a final drive system and a central drive system including a differential system.
Preferably, the differential system includes a differential case, and a planetary gear mechanism, a shaft sleeve, a side gear and a transmission half shaft which are arranged inside the differential case, the planetary gear mechanism includes a planetary gear, a planetary gear shaft, and a planetary gear fixing pin, the planetary gear shaft is connected with the differential case, the planetary gear is engaged with the side gear, and the planetary gear shaft is connected through the shaft sleeve.
Further, the differential case is internally provided with four planetary wheel mechanisms, each planetary wheel shaft comprises two short shafts and a long shaft, the long shafts and the short shafts are fixed on the differential case through planetary gear fixing pins, and the long shafts, the short shafts and the differential case are correspondingly provided with pin holes for installation and fixation.
It should be noted that the shaft sleeve is cylindrical, and is respectively provided with an axial mounting hole and a radial mounting hole for mounting the tail end planet gear shaft along the axial direction and the radial direction;
two short shafts are respectively installed along two ends of the axial installation hole, a long shaft is installed along the radial installation hole, and two chamfer surfaces are arranged at two ends of the axial installation hole.
The invention provides a bearing pre-tightening mechanism of a tail end transmission system and a differential assembly of a shaft sleeve connected with a tail end planet gear shaft, which can bring at least one of the following beneficial effects:
through providing lock nut in this scheme with preceding wheel hub casing, wheel hub bearing, ring gear fixed to the knuckle casing. The gear ring seat is provided with a gear ring seat limiting part, and the gear ring seat limiting part is in contact with the steering knuckle shell, so that the function of adjusting the bearing pre-tightening force is achieved, the assembly is simple and efficient, and the assembly manufacturability is effectively improved.
Drawings
The invention is described in further detail below with reference to the following figures and detailed description:
figure 1 is a schematic view of the structure of a front drive axle of an amphibious work machine;
FIG. 2 is a schematic diagram of a central drive system;
FIG. 3 is a schematic illustration of the differential system of the present invention;
FIG. 4 is a partial perspective view of the differential system;
FIG. 5 is a cross-sectional view of the bushing;
FIG. 6 is a schematic view of the end drive system driving the right side of the front axle
FIG. 7 is an enlarged view taken at "A" in FIG. 6;
fig. 8 is an enlarged view of fig. 6 at "B".
The reference numbers illustrate:
1-left end drive system; 2-a central transmission system; 21-central drive large bevel gear; 21A-central drive small bevel gear; 22-left drive half shaft; 23-right drive half shaft; 24-a differential housing; 25-a differential system; no. 251-1 planetary gear; planetary gear No. 252-2; no. 253-3 planetary gear; no. 254-4 planetary gear; 2541-1 planetary gear body; 2542-1 number planet gear fixing pin; 2543-1 planetary gear shaft; 255-shaft sleeve; 2551-first chamfer; 2552-second chamfer; 2553-axial mounting holes; 2554-radial mounting holes; 26-right drive half shaft bearing; 27-central drive first bearing; 27A-central drive second bearing; 28-box type oil seal; 3-right side end drive system; 30-a fixing member; 301-fixing bolts; 302-a shim; 303-fixing the pin shaft; 31-a front hub shell; 31A-end system drive shaft; 311A-first gear tooth; 31B-a first mounting surface; 311-a third holding surface; 312-a fourth holding surface; 32-end caps; 321-end cap bottom end; 322-end cap connection; 323-end cap extension; 3231-end mounting holes; 33-needle bearings; 34-end planet gear; 34A-end planet gear shaft; 34B-gear ring; 35-a gear ring seat; 351-a gear ring seat fixing part; 352-ring gear seat connection; 353, a gear ring seat limiting part; 354-ring gear seat stop; 36-a hub bearing; 361-a first bearing; 362-a second bearing; 37-a locking nut; 38-a limiting mechanism; 381-spacer ring; 382-a locking ring; 383-a shaft collar; 384-end stopper; 39-knuckle housing; 39A-a first outer surface; 391-a knuckle housing fixed part; 392-a knuckle housing connection part; 393-a knuckle housing body portion; 394-first abutment surface; 395-a second holding surface; 4-universal transmission cross axle seat; 5-box type oil seal; 6-upper king pin; 7-lower king pin
Detailed Description
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
For the sake of simplicity, the drawings only schematically show the parts relevant to the present invention, and they do not represent the actual structure as a product. In addition, in order to make the drawings concise and understandable, components having the same structure or function in some of the drawings are only schematically illustrated or only labeled. In this document, "one" means not only "only one" but also a case of "more than one".
It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.
In this context, it is to be understood that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, in the description of the present application, the terms "first", "second", and the like are used only for distinguishing the description, and are not intended to indicate or imply relative importance.
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following description will be made with reference to the accompanying drawings. It is obvious that the drawings in the following description are only some examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be derived from them without inventive effort.
Embodiments of the present invention are described in further detail below with reference to the accompanying drawings of the specification.
Referring to fig. 1 to 2, the present invention provides a tractor drive front axle comprising a central transmission system 2, a left end transmission system 1, a right end transmission system 3 (for the sake of simplicity, only the right end transmission system 3 will be described hereinafter) and an axle housing 7. The central transmission system 2 comprises a differential system 25, a central transmission large bevel gear 21 and a central transmission small bevel gear 21A. The central transmission large bevel gear 21 is meshed with the central transmission small bevel gear 21A.
Referring to fig. 2, 3 and 4, the differential system 25 includes a differential case 24, and planetary gear mechanisms (251, 252, 253, 254) disposed inside the differential case 24, a shaft sleeve 255, a left side gear 22A, a left drive axle shaft 22, a right side gear 23A and a right drive axle shaft 23. The left side gear 22A is connected with the left transmission half shaft 22, and the right side gear 23A is connected with the right transmission half shaft 23. The planetary gear mechanisms (251, 252, 253, 254) are engaged with the left side gear 22A and the right side gear 23A.
Referring to fig. 2, a central drive bevel pinion 21A extends into the differential case 24, and the central drive bevel pinion 21A is rotatably connected to the differential case 24.
The central transmission bevel pinion 21A is sequentially sleeved with a central transmission first bearing 27, a central transmission second bearing 27A and a box-type oil seal 28. The center drive first bearing 27 and the center drive second bearing 27A are connected to the inside of the differential case 24, and the cassette oil seal 28 is sealingly connected to the differential case 24.
Power is transmitted to the central transmission big bevel gear 21 from the central transmission small bevel gear 21A, and the central transmission big bevel gear 21 is transmitted to the left end transmission system 1 and the right end transmission system 3 through the differential system 25 and the universal transmission cross shaft seat 4 respectively so as to realize the transmission of torque.
Referring to fig. 2, 3, 4 and 5, the differential case 24 of the present embodiment includes four planetary wheel structures, namely, a first planetary wheel mechanism 251, a second planetary wheel mechanism 252, a third planetary wheel mechanism 253 and a fourth planetary wheel mechanism 254. The planetary gear mechanism (251, 252, 253, 254) includes a planetary gear (2511, 2521, 2531, 2541), a planetary gear shaft (2523, 2533, 2543), a planetary gear fixing pin (2512, 2522, 2532, 2542), and a sleeve 255. The distal planetary gear shafts (2523, 2533, 2543) include two stub shafts (2523, 2533) and a long shaft 2543, and the long shaft 2543 and the stub shafts (2523, 2533) are connected by a sleeve 255 and fixed to the differential case 24 by planetary gear fixing pins (2512, 2522, 2532, 2542). The long shaft 2543, the short shafts (2523 and 2533) and the differential case 24 are correspondingly provided with pin holes for mounting and fixing, and the structure is simple, high in strength and simple to machine.
As shown in fig. 5, in the differential gear system 25 of the present embodiment, the sleeve 255 is cylindrical, and is provided with an axial mounting hole 2553 and a radial mounting hole 2554 for mounting the end planet pin in the horizontal and vertical directions, respectively.
Two short shafts (2523 and 2533) are respectively installed at two ends of the shaft sleeve 255 along the axial installation hole 2554, and a long shaft 2543 is installed along the radial installation hole 2553. The end of the axial mounting hole 2554 is provided with a first chamfer surface 2551 and a second chamfer surface 2552.
Referring to fig. 6 to 8, the present embodiment provides an end drive system for a tractor driving front axle, which includes an end drive shaft 31A, a knuckle housing 39, a front hub housing 31, a ring gear holder 35, an end cover 32, a first bearing 361, and a second bearing 362. The tail of the end transmission shaft 31A is provided with a first gear 311A.
The knuckle housing 39 includes a knuckle main body portion 393, a fixing portion 391, and a connecting portion 392 connecting the fixing portion 391 and the main body portion 393. The knuckle body portion 393 is provided with a center hole through which the end drive shaft 31A passes and a first outer surface 39A surrounding the center hole. The first outer surface 39A is provided with a first contact surface 394 and a second contact surface 395. The first contact surface 394 and the second contact surface 395 are disposed in parallel and perpendicular to the central axis of the end drive shaft 31A. The distal end of the knuckle body portion 393 is threaded.
The ring gear 35 includes a ring gear seat stopper 353 interposed between the front hub shell 31 and the first outer surface 39A, a ring gear seat stopper 354, a ring gear seat fixing portion 351, and a ring gear seat connecting portion 352 connecting the ring gear seat stopper 354 and the ring gear seat fixing portion 351. The front end of the gear ring seat limiting portion 353 is in contact with the second abutting surface 395. The first outer surface 39A is stepped. The ring gear seat stopper 353 is spline-connected to the knuckle housing 39, so that the ring gear seat 35 and the knuckle housing 39 can be rotated in synchronization.
The front hub shell 31 has a first mounting surface 31B facing the first outer surface 39A, and a third abutting surface 311 and a fourth abutting surface 312 on the first mounting surface 31B. The third abutting surface 311 and the fourth abutting surface 312 are both parallel to the first abutting surface 394. The first bearing 361 is fixed between the first contact surface 394 and the third contact surface 311, and the second bearing 362 is fixed between the fourth contact surface 312 and the side surface of the ring gear seat stop 354. The first mounting surface 31B is stepped.
The first bearing 361 is provided between the first mounting surface 31B and the first outer surface 39A, and the first bearing 361 is axially interposed between the first abutting surface 394 and the third abutting surface 311. The second bearing 362 is disposed between the first mounting surface 31B and the first outer surface 39A, and the second bearing 362 is disposed between the fourth abutting surface 312 and the surface of the ring gear seat stopper 354 in the axial direction. Specifically, the first bearing 361 and the second bearing 362 are tapered roller bearings. The tapered roller bearing can bear radial load and unidirectional axial load. When the first bearing 361 is loaded radially, an axial component is generated, so that a second bearing 362, which can bear an axial force in the opposite direction, is required for balancing.
The front drive axle end drive system also includes a lock nut 37. The lock nut 37 fixes the ring gear holder 35, the first bearing 361, the second bearing 362, and the front hub shell 31 to the knuckle shell 39. According to the invention, the front end surface of the gear ring seat limiting part 353 is abutted against the second abutting surface 395, so that the locking nut 37 is prevented from being further locked, and the function of adjusting the bearing pre-tightening force can be achieved. The lock nut 37 is screwed to the end of the knuckle housing 39.
The front drive axle end drive system also includes a cartridge oil seal 5. The cartridge type oil seal 5 is interposed between the knuckle housing 39 and the front hub housing 31 to exert a sealing effect.
In this embodiment, the first abutting surface, the second abutting surface, the third abutting surface and the fourth abutting surface are disposed in parallel, but in other embodiments, the abutting surfaces may also be disposed in non-parallel.
The front drive axle end drive system also includes an end cap 32. The end cap 32 includes an end cap attachment portion 322 fixed to the front hub shell 31 and an end cap bottom end 321. The end cap 32 is connected with the front hub shell 31 through the end cap connecting portion 322 to form an accommodating cavity. The cap 32 further includes a cap extension 323 extending from the cap bottom end 321 in a direction toward the first bearing 361. The end cap extension 323 is axially bored with an end mounting hole 3231.
As shown in fig. 6, the tractor drive front end driveline 3 further includes an upper kingpin 61 connected to the knuckle housing 39 and a lower kingpin 62 connected to the knuckle housing. The knuckle housing fixing portion 391 is connected to the transaxle case 7 via the upper kingpin 61 and the lower kingpin 62. The knuckle housing body portion 393 is provided with a center hole through which the end drive shaft 31A passes. The knuckle housing connecting portion 392 is connected with the front hub housing 31, and the front hub housing 31 is connected with the end cover 32 to form an accommodating cavity.
As shown in fig. 6, 7 and 8, the present embodiment provides a tractor drive front axle end transmission system 3, which includes end planetary gears 34, end planetary gear shafts 34A, a ring gear 34B and a fixing member 30. The end planetary gear 34 is connected to an end planetary gear shaft 34A, and the end planetary gear 34A is engaged with the ring gear 34B and the end transmission shaft gear teeth 311A, respectively. The end planet pin 34A is fixed to the end cap bottom end 321. The ring gear 34B is fixedly connected to the ring gear holder fixing portion 351.
The tail end of the tail end planet gear shaft 34A is provided with a mounting hole, and the tail end planet gear shaft 34A is fixed at the bottom end 321 of the end cover through a liquid nitrogen cooling technology. The fixing member 30 includes a fixing bolt 301 and a spacer 302. The fixing bolt 301 and the spacer 302 fix the planetary gear 34 to the end planetary gear shaft 34A through the end mounting hole 3231 of the end cover extension 323. The end transmission system further comprises a gasket rotation preventing structure, and the gasket rotation preventing structure comprises a fixed pin shaft 303 and positioning holes arranged on the planetary gear shaft 34A and the gasket 302. The fixing pin shaft 303 fixes the gasket 302 on the planet gear shaft 34A through the positioning hole, and prevents the gasket 302 from rotating with the planet gear shaft to cause the fixing bolt 301 to loosen.
In other embodiments, the anti-following structure of the gasket may be arranged in other manners, for example, a convex portion is arranged on the gasket 320, and a concave portion corresponding to the convex portion is arranged on the end planet gear shaft, so as to achieve the anti-following effect.
The present embodiment also provides an end drive system limiting mechanism 38. The limiting mechanism 38 includes a spacer 381, a locking ring 382, a shaft retainer 383, and a distal end limiting block 384. The axial displacement of the tail end transmission shaft is controlled by a spacing ring 381, a locking ring 382, a shaft retaining ring 383 and a tail end limiting block 384 at the gear ring 34B, and the spacing ring 381, the locking ring 382 and the shaft retaining ring 383 are sequentially arranged to limit the axial displacement of the tail end transmission shaft 31A towards the inner side of the center of the front axle. End stops 384 are located within front hub shell 31 to limit axial displacement of end drive shaft 31A outwardly of the ends of the front axle. The limiting mechanism 38 is simple and compact in structure, the internal space of the axle housing 7 is utilized to the maximum extent, and the difficulty in mechanism disassembly is reduced while the reliability of the limiting mechanism structure 38 is ensured.
The rotation of the tail end transmission shaft drives the planetary gear to rotate through the matching of the gears, and then the gear ring is driven to rotate. Because the gear ring seat is fixed on the gear ring, the rotation of the gear ring drives the gear ring seat to rotate. The rotation of the gear ring seat further drives the steering knuckle shell to rotate, so that the purpose of steering is achieved. Because the planetary gear is arranged, the technical effect of speed reduction can be achieved.
It should be noted that various modifications and variations can be made to the above-described exemplary embodiments of the present invention without departing from the spirit and scope of the invention, as will be apparent to those skilled in the art. Thus, it is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.
Claims (12)
1. An end drive system for an amphibious work machine drive front axle, comprising:
the tail part of the tail end transmission shaft is provided with gear teeth;
the steering knuckle shell comprises a main body part, wherein the main body part is provided with a central hole for a tail end transmission shaft to pass through and a first outer surface surrounding the central hole, and the first outer surface is provided with a first abutting surface and a second abutting surface;
the front hub shell is provided with a first mounting surface facing the first outer surface, and a third abutting surface and a fourth abutting surface which are positioned on the first mounting surface;
the gear ring seat comprises a gear ring seat blocking part, a gear ring seat fixing part and a gear ring seat limiting part arranged between the first mounting surface and the first outer surface, and the end surface of the gear ring seat limiting part is contacted with the second abutting surface;
the end cover comprises an end cover connecting part fixed on the front hub shell and an end cover bottom end, and the end cover is connected with the front hub shell through the end cover connecting part to form an accommodating cavity;
the first bearing is arranged between the first mounting surface and the first outer surface and is axially arranged between the first abutting surface and the third abutting surface;
the second bearing is arranged between the first mounting surface and the first outer surface and is axially arranged between the fourth abutting surface and the gear ring seat blocking part;
and the locking nut fixes the gear ring seat, the first bearing, the second bearing and the front hub shell to the steering knuckle shell.
2. The end drive system of claim 1, wherein:
the gear ring seat limiting part is connected with the steering knuckle shell through a spline.
3. The end drive system of claim 1, wherein:
the tail end of the main body part of the steering knuckle shell is provided with threads, and the locking nut is fixed on the steering knuckle shell through the threads of the main body part of the steering knuckle shell.
4. The end drive train of claim 1, wherein:
the limiting mechanism comprises a spacer ring, a locking ring, a shaft check ring and a tail end limiting block, the tail end transmission shaft controls axial displacement of the tail end transmission shaft through the spacer ring, the locking ring, the shaft check ring and the tail end limiting block at the gear ring, the spacer ring, the locking ring and the shaft check ring are sequentially arranged to limit axial displacement of the tail end transmission shaft to the inner side of the center of the front axle, and the tail end limiting block is located in the front hub shell to limit axial displacement of the tail end transmission shaft to the outer sides of two ends of the front axle.
5. The end drive system of claim 1, wherein:
the gear ring is characterized by further comprising a tail end planetary gear, a tail end planetary gear shaft and a gear ring, wherein the tail end planetary gear is connected with the tail end planetary gear shaft, the tail end planetary gear is meshed with the gear ring and a tail end transmission shaft gear respectively, and the tail end planetary gear shaft is fixed on the end cover.
6. The end drive train of claim 5, wherein:
the end cover further comprises an end cover extension part extending from the bottom end of the end cover to the first bearing direction, an end part mounting hole is formed in the end cover extension part in the axial direction, and the tail end planetary gear shaft is arranged in the end part mounting hole.
7. The end drive system of claim 5, wherein:
the tail end planet gear shaft is fixed on the end cover through a liquid nitrogen cooling technology.
8. The end drive system of claim 5, wherein:
the gear ring is connected with the gear ring seat fixing part.
9. The end drive system of claim 5, wherein:
still include the planetary gear mounting, terminal planetary gear axle tip is opened has the mounting hole that is used for installing the planetary gear mounting, the planetary gear mounting includes fixing bolt and gasket, fixing bolt, gasket pass through planetary gear axle tip mounting hole and fix on the planetary gear axle.
10. The end drive system as defined in claim 9, wherein:
the planetary gear fixing piece further comprises a fixing pin shaft, positioning holes are further formed in the planetary gear shaft and the gasket, and the fixing pin shaft fixes the gasket on the planetary gear shaft through the positioning holes.
11. A front drive axle of an amphibious working machine is characterized in that:
comprising a central drive train comprising a differential system and an end drive system according to claims 1-10.
12. The front drive axle of an amphibious vehicle as claimed in claim 11 wherein:
differential system includes the differential mechanism casing and all sets up inside planetary gear mechanism, axle sleeve, side gear and the transmission semi-axis of differential mechanism casing, planetary gear mechanism includes planetary gear and planet gear shaft, planet gear shaft with the differential mechanism casing is connected, planetary gear with the side gear meshing, planetary gear mechanism is four, planet gear shaft includes two minor axises and a major axis, major axis and minor axis are fixed on the differential mechanism casing, major axis, minor axis pass through the axle sleeve and are connected together, the axle sleeve is cylindrically, is equipped with axial mounting hole and the radial mounting hole that is used for installing terminal planetary gear shaft respectively along axial and radial, installs two minor axises respectively along axial mounting hole both ends, along a major axis of radial mounting hole installation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010913799.9A CN112503156A (en) | 2020-09-05 | 2020-09-05 | End transmission system for a front drive axle of an amphibious vehicle and front drive axle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010913799.9A CN112503156A (en) | 2020-09-05 | 2020-09-05 | End transmission system for a front drive axle of an amphibious vehicle and front drive axle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112503156A true CN112503156A (en) | 2021-03-16 |
Family
ID=74953499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010913799.9A Pending CN112503156A (en) | 2020-09-05 | 2020-09-05 | End transmission system for a front drive axle of an amphibious vehicle and front drive axle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112503156A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206111962U (en) * | 2016-08-31 | 2017-04-19 | 徐州美驰车桥有限公司 | Car axle wheel limit planetary reducer constructs |
| CN206217508U (en) * | 2016-08-22 | 2017-06-06 | 潍坊谷合传动技术有限公司 | A kind of new final drive structure front drive axle of tractor |
| CN210397532U (en) * | 2019-04-28 | 2020-04-24 | 浙江金道科技股份有限公司 | Drive axle and input assembly thereof |
| CN111152607A (en) * | 2020-03-09 | 2020-05-15 | 徐州科源液压股份有限公司 | Motor transverse hydraulic flat-bed transport vehicle axle |
| CN210553944U (en) * | 2019-09-30 | 2020-05-19 | 江苏常发农业装备股份有限公司 | Stop gear, knuckle shock-absorbing structure and tractor front drive axle |
-
2020
- 2020-09-05 CN CN202010913799.9A patent/CN112503156A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206217508U (en) * | 2016-08-22 | 2017-06-06 | 潍坊谷合传动技术有限公司 | A kind of new final drive structure front drive axle of tractor |
| CN206111962U (en) * | 2016-08-31 | 2017-04-19 | 徐州美驰车桥有限公司 | Car axle wheel limit planetary reducer constructs |
| CN210397532U (en) * | 2019-04-28 | 2020-04-24 | 浙江金道科技股份有限公司 | Drive axle and input assembly thereof |
| CN210553944U (en) * | 2019-09-30 | 2020-05-19 | 江苏常发农业装备股份有限公司 | Stop gear, knuckle shock-absorbing structure and tractor front drive axle |
| CN111152607A (en) * | 2020-03-09 | 2020-05-15 | 徐州科源液压股份有限公司 | Motor transverse hydraulic flat-bed transport vehicle axle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2450598B1 (en) | Helical gear differential | |
| US6863634B2 (en) | Tandem axle power divider assembly with inboard slip driveshaft connection | |
| US7837588B2 (en) | Pre-load mechanism for helical gear differential | |
| RU2446325C2 (en) | All wheel drive system | |
| EP3372434A1 (en) | Axle assembly having a drive pinion support bearing and a method of assembly | |
| US4723464A (en) | Differential gear assembly for motor vehicles | |
| JP3286810B2 (en) | Helical differential gearing including lubrication distribution means | |
| US3310999A (en) | Differential gearing and axle assembly for an automotive vehicle driveline | |
| JP2001074124A (en) | Combination of bearing assembly with bearing adjusting ring, automobile differential unit, and differential bearing assembly adjusting method | |
| US20060219037A1 (en) | Support structure and gear mechanism having the same | |
| JP4583033B2 (en) | Cross pin holding device for differential device | |
| US20120285276A1 (en) | Power takeoff unit for automobile | |
| KR20140069451A (en) | Coupling structure of propeller shaft in vehicle | |
| US4557157A (en) | Vehicle steering differential | |
| CN210553944U (en) | Stop gear, knuckle shock-absorbing structure and tractor front drive axle | |
| CN112503156A (en) | End transmission system for a front drive axle of an amphibious vehicle and front drive axle | |
| WO2005005863A1 (en) | Tamdem axle carrier structural rib | |
| CN213954293U (en) | End transmission system of driving front axle of amphibious working machine and driving front axle | |
| US10612637B2 (en) | Driveline component having differential assembly with differential gearset configured to limit inboard thrust of side gears | |
| US6957710B2 (en) | Tandem drive axle assembly | |
| WO2004009392A1 (en) | Inter-axle differential having improved bearing arrangement | |
| JP2015183830A (en) | in-wheel motor drive device | |
| CN114714813A (en) | Axle assembly with drive pinion and preload nut and method of assembly | |
| US5662544A (en) | Side gear retention of pinion mates | |
| CN112673194B (en) | Axle system for a vehicle and installation process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |