CN201354007Y - Drive axle of loader - Google Patents
Drive axle of loader Download PDFInfo
- Publication number
- CN201354007Y CN201354007Y CNU2009201122015U CN200920112201U CN201354007Y CN 201354007 Y CN201354007 Y CN 201354007Y CN U2009201122015 U CNU2009201122015 U CN U2009201122015U CN 200920112201 U CN200920112201 U CN 200920112201U CN 201354007 Y CN201354007 Y CN 201354007Y
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- drive axle
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Abstract
The utility model relates to a drive axle of a loader, which mainly consists of a main reducing gear, a differential, a half shaft and a wheel reducer, wherein the wheel reducer comprises a sun wheel, a planet wheel, an internal gear ring, a planet carrier, a wheel cover, a hub and a gear ring support; the planet wheel is installed on a planet wheel spindle by a roller pin, the planet wheel spindle and the planet carrier are casted together to form a cantilever-type planet carrier, the sun wheel is installed on one end of the half shaft, and the internal gear ring is fixed with a wheel support shaft by virtue of the gear ring support; the hub is fixed with the wheel support shaft and the internal ring support by virtue of a conical roller pin bearing; the utility model changes the processing technology of a differential gear, simplifies the structural design of the wheel reducer, and enhances the fatigue strength of the differential gear; and the casting difficulty of the wheel planet carrier is lowered and the strength thereof is enhanced, the inner structure of the drive axle is compact, the assembly is simple and convenient, the production cost is reduced and the efficiency is improved.
Description
Technical field
The utility model relates to the design and the process technology of engineering truck zero, parts, relates in particular to the novel drive axle of a kind of loader.
Background technology
At present, the zl50 loader drive axle all exists certain deficiency in aspects such as portion zero, block construction design and processing technology within it.Zl50 loader drive axle differential gear generally adopts form milling processing, has milled away the outstanding triangular portions of tooth root of big end of axle side gear and planetary wheel small end, has reduced the strength at repeated alternation of gear.Used cutter, lathe and the anchor clamps of Milling Process are all fairly simple, and speed is slow, efficient is low, the accuracy of gear is poor, only suitable single-piece, short run producton.Loader differential mechanism gear demand is bigger now, so be difficult to reach production requirement with traditional Milling Process.The hub reduction apparatus structure complexity of zl50 loader drive axle in addition, wheel hub and planetary wheel carrier connect and compose wheel limit housing by rim bolt, have the position, hole that planet wheel spindle is installed on the planetary wheel carrier.Such structure increases part casting difficulty, assembling inconvenience, and the planetary wheel carrier inside face is not easy processing, and manufacturing cost is higher.
Summary of the invention
It is a kind of simple in structure, compact that the purpose of this utility model is to provide, and assembles easyly, and productive costs reduces, the drive axle of the novel loader that efficient improves.
The purpose of this utility model is finished by following technical solution, it mainly is made of main reduction gear, diff, semiaxis and wheel reduction gear, and described wheel reduction gear includes sun wheel, satellite gear, internally toothed annulus, planetary wheel carrier, wheel limit lid, wheel hub, gear ring support; Described satellite gear is installed on the planet wheel spindle by needle roller, and planet wheel spindle and planetary wheel carrier are cast in together and constitute the cantilevered planetary wheel carrier, and sun wheel is installed in an end of semiaxis, and internally toothed annulus relies on gear ring to support with wheel limit pivot shaft and fixes; Wheel hub rely on the circular cone needle bearing and with wheel limit pivot shaft and gear ring support fixation.
The housing of described wheel reduction gear and planetary wheel carrier individual cast, and wheel reduction gear housing and wheel hub cast solid, planetary wheel carrier and wheel hub pass through independently bolted connection; Periphery design at wheel hub has the flange that wheel is installed, and boring is installed wheel by rim bolt on the flange.
Described diff mainly is made up of axle side gear, bevel planet gear, center cross, differential right casing and differential left shell, the finishing bevel gear cuter of described diff to be by the precision drop forging processing that is shaped, and the big end of described axle side gear and and the small end of bevel planet gear have the tooth root outshot.
The utility model has changed the processing technology of zl50 loader drive axle differential gear, and adopted cantilevered planetary wheel carrier, changed the material of planetary wheel carrier, planet wheel spindle and wheel carrier are cast in together, planetary wheel carrier and wheel hub connection location have been changed, compare traditional loader drive axle, it is big to have the differential gear strength at repeated alternation, the tooth accuracy height, material consumption is few, characteristics such as long service life, also make the diff integral structure compact more, and under the condition that satisfies assembling and intensity, the hub reduction device has been simplified its structure design, make its compact conformation, greatly reduce part casting difficulty, assemble easylier, reduced the manufacturing cost of drive axle, improved production efficiency, for loader provides a kind of simple and practical novel drive axle.
Description of drawings
Fig. 1 is the novel drive axle cutaway view of zl50 loader.
Fig. 2 is the novel drive axle hub reduction of a zl50 loader device cutaway view.
Fig. 3 is the novel drive axle diff of a zl50 loader cutaway view.
Fig. 4 is the novel drive axle differential side gear of a zl50 loader cutaway view.
Fig. 5 is the novel drive axle diff of a zl50 loader bevel planet gear cutaway view.
The specific embodiment
In the accompanying drawing: 1, main reduction gear, 2, diff, 3, semiaxis, 4, wheel reduction gear, 5, wheel limit pivot shaft, 6, tapered roller bearing, 7, brake disc, 8, the brake disc bolt, 9, wheel hub, 10, rim bolt, 11, tapered roller bearing, 12, gear ring supports, 13, internally toothed annulus, 14, bolt, 15, planetary wheel carrier, 16, needle roller, 17, satellite gear, 18, wheel limit lid, 19, sun wheel, 20, semiaxis, 21, planet wheel spindle, 22, differential right casing, 23, bevel planet gear, 24, center cross, 25, the differential left shell, 26, axle side gear.
Loader drive axle differential gear is made up of two axle side gears and four planetary wheels, present generally adopts form milling processing to differential bevel wheel, later-model differential gear has changed processing technology, by precision drop forging shaping processing, the tooth root outshot that has kept big end of axle side gear and planetary wheel small end, thereby make the intensity that has improved differential gear, make the diff integral structure compacter.
Novel loader drive axle cantilevered planetary wheel carrier wheel reduction gear mainly is made of sun wheel, satellite gear, internally toothed annulus, planetary wheel carrier, wheel limit lid, wheel hub, gear ring support, bearing etc.Sun wheel is installed in semiaxis one end by spline, satellite gear is installed on the planet wheel spindle by needle bearing, has removed the satellite gear axis hole on original planetary wheel carrier, and planet wheel spindle and planetary wheel carrier are cast as integral body, constitute the cantilevered planetary wheel carrier, its material also becomes ZG40Cr by QT450-10.Originally wheel reduction gear housing and planetary wheel carrier cast solid, and link together by bolt and wheel hub, and this bolt effect of connection wheel of having held concurrently, design after the improvement is wheel reduction gear housing and planetary wheel carrier individual cast, and wheel reduction gear housing and wheel hub cast solid, in its periphery design the flange that wheel is installed is arranged, boring is installed wheel by rim bolt on the flange.Wheel limit lid is installed on the planetary wheel carrier by bolt, and wheel hub and cantilevered planetary wheel carrier and wheel limit lid constitute the shell of wheel reduction gear together.
Be further described below in conjunction with drawings and Examples.
As shown in Figure 1, the running part of novel loader drive axle described in the utility model mainly is made of main reduction gear 1, diff 2, semiaxis 3 and wheel reduction gear 4, and the utility model mainly is that the structure of diff 2 and wheel reduction gear 4 is carried out certain improvement.
As shown in Figure 2, wheel reduction gear described in the utility model mainly is made of sun wheel 19, satellite gear 17, internally toothed annulus 13, planetary wheel carrier 15, wheel limit lid 18, wheel hub 9, gear ring support 12 etc.Satellite gear 17 is installed on the planet wheel spindle 21 by needle roller 16, removes the hole on original planetary wheel carrier, and planet wheel spindle 21 and planetary wheel carrier 15 are cast in and constitute the cantilevered planetary wheel carrier together, and its material also becomes ZG40Cr by QT450-10.Sun wheel 19 is installed in an end of semiaxis 20, and internally toothed annulus 13 relies on gear ring support 12 fixing with wheel limit pivot shaft 5.Wheel hub 9 relies on circular cone needle bearings 6 and 11 to support 12 with wheel limit pivot shaft 5 and gear ring and fixes.Wheel reduction gear housing and planetary wheel carrier 15 individual casts, and wheel reduction gear housing and wheel hub 9 casts solid, planetary wheel carrier 15 and wheel hub 9 are connected by bolt 14 independently.In wheel hub 9 periphery designs the flange that wheel is installed is arranged, boring is installed wheel by rim bolt 10 on the flange.
As shown in Figure 3, novel loader drive axle diff mainly is made up of axle side gear 26, bevel planet gear 23, center cross 24, differential right casing 22 and differential left shell 25 etc.Axle side gear 26 and bevel planet gear 23 are its important Transmissions, and moment of torsion is delivered to wheel reduction gear by differential gear, so the overall performance of the reliability of axle side gear 26 and bevel planet gear 23 decision diff.Zl50 loader drive axle differential bevel wheel generally adopted Milling Process in the past, and this job operation has milled away the tooth root triangle outshot of axle side gear 26 big ends and bevel planet gear 23 small ends, and the intensity of gear is obviously weakened.Used cutter, lathe and the anchor clamps of Milling Process are all fairly simple, and cost is low, are fit to single-piece, small batch production, but the accuracy of gear that processes is low, and production efficiency is not high, are unfavorable for producing in enormous quantities.Later-model differential gear has changed the processing technology of finishing bevel gear cuter, adopt precision drop forging that it is processed, this gear precision forging technology has kept the tooth root triangle outshot of axle side gear 26 big ends and bevel planet gear 23 small ends, and has the advantages such as degree of utilization height, accuracy of gear height and production efficiency height of material.The bending strength of gear, contact fatigue strength and Dent resistance all are higher than the gear part of cutting, have improved the mechanical characteristics and the service life of differential bevel wheel, and are convenient to produce in enormous quantities.
The moment of torsion that sun wheel 19 on the wheel reduction gear passes over semiaxis 3 passes to satellite gear 17, satellite gear 17 passes to moment of torsion on the wheel limit housing of planetary wheel carrier 15 and wheel hub 9 formations by planet wheel spindle 21 again, on the flange of wheel limit housing periphery rim bolt 10 is housed, moment of torsion finally passes to wheel by rim bolt 10.Planet wheel spindle 21 on the wheel reduction gear originally is mounted on the planetary wheel carrier 15, original planetary wheel carrier complex structure, and the casting difficulty is big, and internal operation is difficult for, thereby has increased the manufacturing cost of part.Original in addition planetary wheel carrier is connected at rim bolt 10 places with wheel hub 9, and planetary wheel carrier becomes the housing on wheel limit.The position, hole on the planetary wheel carrier 15 has been removed in present later-model design, and planet wheel spindle 21 and planetary wheel carrier 15 are cast as one, constitutes the cantilevered planetary wheel carrier.Planetary wheel carrier 15 has also been done change with the connection location of wheel hub 9, by independently bolt 14 connections.Wheel hub 9 is cast with the wheel reduction gear housing and is in the same place, and the flange on wheel hub 9 peripheries is equipped with rim bolt 10, is used for installing wheel.As shown in Figure 4 and Figure 5, the outstanding triangular portions of tooth root of differential side gear 26 big ends and bevel planet gear 23 small ends obtains keeping, strengthened the strength at repeated alternation of tooth root mate so greatly, such improvement design simplification the structure of wheel reduction gear, changed the processing technology of differential gear, the reduction of wheel limit planetary wheel carrier casting difficulty, intensity are increased, the strength at repeated alternation of differential gear increases, guarantee the transmission stability and the safety of gear, improved diff integral body and vehicle performance.The inner structure compactness of drive axle, easy, the productive costs of assembling reduce and efficient improves.For a series of loaders provide a kind of simple and practical novel drive axle.
Claims (3)
1, a kind of loader drive axle, it mainly is made of main reduction gear (1), diff (2), semiaxis (3) and wheel reduction gear (4), it is characterized in that described wheel reduction gear includes sun wheel (19), satellite gear (17), internally toothed annulus (13), planetary wheel carrier (15), wheel limit lid (18), wheel hub (9), gear ring support (12); Described satellite gear (17) is installed on the planet wheel spindle (21) by needle roller (16), planet wheel spindle (21) and planetary wheel carrier (15) are cast in together and constitute the cantilevered planetary wheel carrier, sun wheel (19) is installed in an end of semiaxis (20), and it is fixing with wheel limit pivot shaft (5) that internally toothed annulus (13) relies on gear ring to support (12); It is fixing that wheel hub (9) relies on circular cone needle bearing (6,11) and wheel limit pivot shaft (5) and gear ring to support (12).
2, loader drive axle according to claim 1, the housing and planetary wheel carrier (15) individual cast that it is characterized in that described wheel reduction gear, and wheel reduction gear housing and wheel hub (9) cast solid, planetary wheel carrier (15) and wheel hub (9) are connected by bolt (14) independently; Periphery design at wheel hub (9) has the flange that wheel is installed, and boring is installed wheel by rim bolt (10) on the flange.
3, loader drive axle according to claim 1, it is characterized in that described diff mainly is made up of axle side gear (26), bevel planet gear (23), center cross (24), differential right casing (22) and differential left shell (25), the finishing bevel gear cuter of described diff to be by the precision drop forging processing that is shaped, and described axle side gear (26) is held greatly and and the small end of bevel planet gear (23) have the tooth root outshot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201122015U CN201354007Y (en) | 2009-01-05 | 2009-01-05 | Drive axle of loader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201122015U CN201354007Y (en) | 2009-01-05 | 2009-01-05 | Drive axle of loader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201354007Y true CN201354007Y (en) | 2009-12-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009201122015U Expired - Lifetime CN201354007Y (en) | 2009-01-05 | 2009-01-05 | Drive axle of loader |
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| CN (1) | CN201354007Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101823433A (en) * | 2010-05-21 | 2010-09-08 | 徐工集团工程机械股份有限公司科技分公司 | Wet braking drive axle and loading machine with same |
| CN102887060A (en) * | 2012-10-26 | 2013-01-23 | 泰安九洲金城机械有限公司 | Drive axle of articulated tractor |
| CN103358819A (en) * | 2013-07-13 | 2013-10-23 | 临颍县颍机机械制造有限公司 | Four-wheel drive grass grasping machine with wheel-side reducers |
| CN104401224A (en) * | 2014-11-26 | 2015-03-11 | 泰安九洲金城机械有限公司 | Double-power input crawler-type mechanical apparatus drive axle |
| CN105059056A (en) * | 2015-09-18 | 2015-11-18 | 南京创捷和信汽车零部件有限公司 | Secondary speed-reduction rear driving axle assembly |
| CN113829874A (en) * | 2021-11-04 | 2021-12-24 | 包头北奔重汽桥箱有限公司 | Two-gear speed reducer transmission mechanism matched with planetary speed reduction |
-
2009
- 2009-01-05 CN CNU2009201122015U patent/CN201354007Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101823433A (en) * | 2010-05-21 | 2010-09-08 | 徐工集团工程机械股份有限公司科技分公司 | Wet braking drive axle and loading machine with same |
| CN102887060A (en) * | 2012-10-26 | 2013-01-23 | 泰安九洲金城机械有限公司 | Drive axle of articulated tractor |
| CN103358819A (en) * | 2013-07-13 | 2013-10-23 | 临颍县颍机机械制造有限公司 | Four-wheel drive grass grasping machine with wheel-side reducers |
| CN104401224A (en) * | 2014-11-26 | 2015-03-11 | 泰安九洲金城机械有限公司 | Double-power input crawler-type mechanical apparatus drive axle |
| CN105059056A (en) * | 2015-09-18 | 2015-11-18 | 南京创捷和信汽车零部件有限公司 | Secondary speed-reduction rear driving axle assembly |
| CN113829874A (en) * | 2021-11-04 | 2021-12-24 | 包头北奔重汽桥箱有限公司 | Two-gear speed reducer transmission mechanism matched with planetary speed reduction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091202 |
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| CX01 | Expiry of patent term |