CN2199883Y - Rear drive axle for light truck - Google Patents
Rear drive axle for light truck Download PDFInfo
- Publication number
- CN2199883Y CN2199883Y CN 94209957 CN94209957U CN2199883Y CN 2199883 Y CN2199883 Y CN 2199883Y CN 94209957 CN94209957 CN 94209957 CN 94209957 U CN94209957 U CN 94209957U CN 2199883 Y CN2199883 Y CN 2199883Y
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- axle
- gear
- drive
- bevel gear
- housing
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Abstract
The utility model relates to a rear drive axle for light trucks, which has a flange for connecting with a driving shaft of a corresponding light truck, a gear speed reducer, a gear differential mechanism, and a half shaft and an axle housing for connecting with a wheel hub. The utility model is characterized in that the utility model is reformed in a limited mode on the basis of the structure of the rear drive axle of the Beijing 130 type light truck which is general in China (is equivalent to the capacity of 3 tons). The capacity of the rear axle is improved to five tons, the output torque is enlarged and the driving performance is improved by improving drive and driven gear pitch diameters, changing the cantilever type drive bevel gear into the cross type, changing the separate planetary cross gear into the integral type, changing the driving spline type specification, and changing the tubular axle shell into the square tubular shape. The utility model is suitable for being matched with the light truck with the loading capacity of 2.5 to 3.5 tons.
Description
The utility model relates to the lilliput car rear driving axle that broad applicability is arranged that is used for 2.5～3.5 tonnes of lorries and manned vehicle.The utility model is that the basis improves with current domestic long-term widely used Beijing 130 type lilliput car rear driving axle structures (referring to accompanying drawing 1).The load carrying ability of current domestic public Beijing 130 type lilliput cars is generally 1.5～2 tons (being equivalent to 3 tons of rear driving axle capacity), but in the long-term use process, find that its rear driving axle exists following point: the driving gear shaft of main reduction gear is the beam type supporting structure, the rigidity deficiency, cause mesh tooth face easy to wear, and be subjected to the restriction of transfer torque; Match with the driving gear shaft rectangular spline at place of the flange that links to each other with transmission shaft is easy to wear, and is prone to the impact phenomenon when starting; The dimensions of semiaxis invoice serration is less than normal, the transfer torque scarce capacity; Connect two pairs of planetary cross oblique crank Zs and be by two in-line axles overlap joints and form, thereby the working accuracy of every in-line axle and Technology for Heating Processing require then higher.Beijing 130 type lilliput cars of current domestic positive widespread production and recent lilliput car from external imported technology, its load carrying ability is generally between 1.5～2 tons, and load carrying ability is the lilliput car of 2.5～3.5 tons (being equivalent to 5 tonnes of rear driving axle capacity), also be in space state basically, this has proposed further requirement with regard to the improvement of giving this rear driving axle.Therefore, the utility model improves its load-carrying capacity except requiring, and it is reached outside 5 tons of capacity level levels, also requires significantly to improve its transmission performance.
The purpose of this utility model is: the novel rear driving axle that volume is less, quality is little that is transformed into 5 tons of capacity level on the basis of former 3 tons of capacity level rear driving axle structures, make its lead time shorter, and be that 2.5～3.5 tonnes various lorries (comprising agricultural ore deposit automobile for building) and manned vehicle is supporting reliably.By to the structural development of former rear driving axle, improve component structural intensity and accuracy of manufacture simultaneously, thereby improve the transmission performance of rear driving axle, reach that output torque is big, driving efficiency is high, operate steadily, the purpose of long service life.
Technical solution of the present utility model is: have a flange (1) that connects corresponding lilliput car transmission shaft, this flange links to each other by the drive bevel gear (2) of spline (A) with main reduction gear, the axial region of its gear is supported in the antifriction-bearing box, driven wheel of differential (3) is installed on the flange of differential casing (4), two pairs of planetary wheels (5) are connected on the differential casing (4) by the cross oblique crank Z, two pairs of planetary wheels (5) are meshed with two semi-axle bevel gears (6), bevel housing (11) and axle housing lid (9) contain main reduction gear and diff wherein, axle side gear (6) links to each other with an end of semiaxis (10) by invoice serration (B), the same wheel hub of the other end (14) of semiaxis (10) links to each other, on the preceding ring stiffener of the axle housing (12) that is welded into by the steel plate punching press bevel housing (11) is installed, axle housing lid (9) is being welded at the rear portion, and weld mutually with axle tube (13) at two ends, the axle housing left and right sides.Feature of the present utility model is: change cantilever beam bearing drive bevel gear (2) into the formula load-carrying construction that bridges, the tapered roller bearing pedestal (15) of drive bevel gear (2) is separated with bevel housing (11), the pitch diameter of the same driven wheel of differential of drive bevel gear (2) (3) is increased and the base ratio raising, the separation type criss-cross transmission shaft (7 that will connect two pairs of planetary wheels (5), 8) change one-piece construction (16) into, with φ 35 * 12(tooth top diameter (the mm) * number of teeth on flange (1) and the drive bevel gear (2)) rectangular spline (A) changes the involute form into, the dimensions of φ 36 * 16 invoice serrations (B) of two semiaxis (10) and two axle side gears (6) is increased, φ 105 * 6(external diameter * wall thickness (mm) with rear-axle casing (12)) the garden pipe cross-section changes square tube shape into, axle housing (12) is gone up the opening diameter φ 235(mm that main reduction gear is installed) increase.
Drive bevel gear axle of the present utility model (2) is changed to the form of the formula load-carrying construction that bridges, and can set up a pedestal (C) that supports its geared end bearing in bevel housing (11) inside.
Drive bevel gear pitch diameter of the present utility model can increase the 42.9(mm for φ), the driven wheel of differential pitch diameter can increase the 250.25(mm for φ).
The reduction ratio of driving and driven bevel gear pair of the present utility model (2,3) can increase to the 41/7(flower wheel number of teeth/driving wheel number of teeth).
Criss-cross compensating-gear shaft of the present utility model (16) can be whole punching block forging structure.
The dimensions of the invoice serration (A) on flange of the present utility model (1) and the drive bevel gear (2) can be φ 31 * 17(tooth top diameter (mm) * number of teeth).
The dimensions of the invoice serration (B) on two semiaxis of the present utility model (10) and two axle side gears (6) can increase to φ 38 * 23(tooth top diameter (mm) * number of teeth).
The square tube shape plane of weakness size of rear-axle casing of the present utility model (12) can be 106 * 106 * 6(length of side * length of side * wall thickness (mm)).
Difference on the rear-axle casing of the present utility model (12) subtracts assembly mounting hole diameter can be φ 274(mm).
Advantage of the present utility model and effect are: realize improving its load-carrying capacity and the target of improving its transmission performance because the utility model is the way of taking public rear driving axle structure to be carried out limited transformation, therefore it is compared with the brand-new design process and with former rear driving axle structure, then have tangible advantage and effect, it can keep the original design advantage and overcome its shortcoming, shorten the lead time, be easy to again reach and improve its load-carrying capacity and improve transmission performance, be the supporting purpose of lilliput car of 2.5～3.5 tons of load-carryings.
Description of drawings:
Fig. 1 is the cutaway view of former Beijing 130 type lilliput car rear driving axles.
Fig. 2 is the cutaway view of the utility model rear driving axle.
Fig. 3 is the front view of the integral type criss-cross compensating-gear shaft of the utility model rear driving axle.
Embodiment of the present utility model:
As Fig. 1, Fig. 2 and shown in Figure 3, with the continuous flange (1) of corresponding lilliput car transmission shaft, by by φ 35 * 12(tooth top diameter (mm) * number of teeth) rectangular spline improves φ 31 * 17 invoice serrations (A) that come and links to each other with hypoid drive bevel gear (2), thereby improve its driving torque and start stationarity.The front end of above-mentioned drive bevel gear axle is supported in a pair of tapered roller bearing of installing in opposite directions, and the rear end is supported in the roller bearing cup (C), thereby constitutes the load-carrying construction of the formula of bridging, and than former beam type load-carrying construction, its bending strength and accuracy of mesh are higher.The pedestal (15) that drive bevel gear (2) tapered roller bearing is installed is separated with bevel housing (11), thereby has simplified the processing technology of former unitized housing.Hypoid driven wheel of differential (3) is installed on the flange of bevel housing (4), and same drive bevel gear (2) is meshed, the main driven gear pitch diameter increases to φ 42.9 and φ 250.25(mm respectively), its engagement reduction ratio increases to the 41/7(flower wheel number of teeth/driving wheel number of teeth by former 35/6), thus the load-carrying capacity of its gear improved.Intermeshing two pairs of planetary wheels (5) and two axle side gears (6) are housed in the differential casing (4), and when the left and right wheels rotating speed was inconsistent, this engagement just can be played differential action.Above-mentioned two pairs of planetary wheels (5) are fitted on the integral type criss-cross compensating-gear shaft (16), and this integral type punching block forging structure (16) is all more superior than the torsional strength and the processing technology of former separation type criss-cross compensating-gear shaft (7,8).Two axle side gears (6) that are installed in the differential casing (4) link to each other with an end of two semiaxis (10) by φ 38 * 23 invoice serrations (B), and this spline is higher than the torsional strength of former φ 36 * 16 invoice serrations.The same wheel hub of the other end of semiaxis (14) links to each other.On the preceding ring stiffener of the rear-axle casing (12) that is welded into by the steel plate punching press final drive casing (11) is installed, axle housing lid (9) is being welded in the rear end.The axle housing body that stretches to two ends, the left and right sides is that sectional dimension is 106 * 106 * 6(length of side * length of side * wall thickness (mm)) square tube shape structure, this is than former φ 105 * 6(external diameter * wall thickness (mm)) the bending strength of garden tubular-shaped structures high.The same axle tubes in axle housing two ends (13) weld mutually.The main reduction gear mounting hole increasing diameter of rear-axle casing is φ 274(mm greatly).
Claims (8)
1, the lilliput car rear driving axle that broad applicability is arranged that is used for lorry and manned vehicle, has a flange (1) that connects corresponding lilliput car transmission shaft, this flange links to each other by the front end of spline (A) with the drive bevel gear (2) of main reduction gear, the axial region of its gear is supported in the antifriction-bearing box, the same driven wheel of differential of this drive bevel gear (2) (3) is meshed, this driven wheel of differential (3) is installed on the flange of differential casing (4), orthogonal two pairs of planetary wheels (5) are by cross oblique crank Z (7 in the diff, 8) be connected on the differential casing (4), the planetary wheel of two pairs of crossing distribution (5) is meshed with two axle side gears (6), bevel housing (11) and axle housing lid (9) contain main reduction gear and diff wherein, axle side gear (6) links to each other by an end of the same semiaxis of invoice serration (B) (10), the same wheel hub of the other end (14) of semiaxis (10) links to each other, on the preceding ring stiffener of the axle housing (12) that is welded into by the steel plate punching press bevel housing (11) is installed, axle housing lid (9) is being welded in the rear end, the same axle tube of axle housing body (13) that stretches to two ends, the left and right sides welds mutually, feature of the present utility model is: change beam type drive bevel gear axle (2) into the formula supporting structure that bridges, the bearing seat (15) of drive bevel gear (2) is separated with bevel housing (11), the pitch diameter and the reduction ratio (35/6) of the same driven wheel of differential of drive bevel gear (2) (3) are increased, the separation type criss-cross compensating-gear shaft (7 that will connect two pairs of planetary wheels (5), 8) change one-piece construction (16) into, change the φ 35 * 12 on flange (1) and the drive bevel gear (2) (tooth top diameter (the mm) * number of teeth) rectangular spline (A) into invoice serration, the dimensions of φ 36 * 16 invoice serrations (B) on semiaxis (10) and the axle side gear (6) is increased, change φ 105 * 6 (external diameter * wall thickness (mm)) the tubular plane of weakness in garden of rear-axle casing (12) into square tube shape, the opening diameter φ 235 (mm) that main reduction gear is installed on the rear-axle casing is increased.
2, drive axle according to claim 1 is characterized in that: drive bevel gear axle (2) is changed to the formula supporting structure form that bridges, and is to set up a pedestal (C) that supports its geared end bearing in bevel housing (11) inside.
3, drive axle according to claim 1 is characterized in that: the pitch diameter of driving and driven finishing bevel gear cuter (2,3) increases to φ 42.9 and φ 250.25(mm respectively) and base ratio increase to the 41/7(flower wheel number of teeth/driving wheel number of teeth).
4, drive axle according to claim 1 is characterized in that: criss-cross compensating-gear shaft (16) is whole punching block forging structure.
5, drive axle according to claim 1 is characterized in that: the dimensions of the invoice serration (A) on flange (1) and the drive bevel gear (2) is φ 31 * 17(tooth top diameter (mm) * number of teeth).
6, drive axle according to claim 1 is characterized in that: the dimensions of the invoice serration (B) on semiaxis (10) and the axle side gear (6) increases to φ 38 * 23(tooth top diameter (mm) * number of teeth).
7, drive axle according to claim 1 is characterized in that: the square tube shape plane of weakness of rear-axle casing (12) is of a size of 106 * 106 * 6(length of side * length of side * wall thickness (mm)).
8, drive axle according to claim 1 is characterized in that: the mounting hole diameter that rear-axle casing (12) is gone up main reduction gear is φ 274(mm).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94209957 CN2199883Y (en) | 1994-04-23 | 1994-04-23 | Rear drive axle for light truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94209957 CN2199883Y (en) | 1994-04-23 | 1994-04-23 | Rear drive axle for light truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2199883Y true CN2199883Y (en) | 1995-06-07 |
Family
ID=33827498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94209957 Expired - Fee Related CN2199883Y (en) | 1994-04-23 | 1994-04-23 | Rear drive axle for light truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2199883Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102000967A (en) * | 2010-09-07 | 2011-04-06 | 电子科技大学 | Adaptor device for synchronous butt joint of main cone nut and flange of automobile drive axle assembly |
| CN101701624B (en) * | 2009-11-27 | 2015-09-09 | 青特集团有限公司 | A kind of method changing speed ratio of main reducer of middle axle of automobile |
| CN105398289A (en) * | 2015-11-20 | 2016-03-16 | 葛强林 | Axle spherical shell protection device |
| CN107314099A (en) * | 2017-07-24 | 2017-11-03 | 泸州开士乐工程技术有限责任公司 | A kind of multipurpose main reducing gear |
-
1994
- 1994-04-23 CN CN 94209957 patent/CN2199883Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101701624B (en) * | 2009-11-27 | 2015-09-09 | 青特集团有限公司 | A kind of method changing speed ratio of main reducer of middle axle of automobile |
| CN102000967A (en) * | 2010-09-07 | 2011-04-06 | 电子科技大学 | Adaptor device for synchronous butt joint of main cone nut and flange of automobile drive axle assembly |
| CN102000967B (en) * | 2010-09-07 | 2013-01-09 | 电子科技大学 | Adaptor device for synchronous butt joint of main cone nut and flange of automobile drive axle assembly |
| CN105398289A (en) * | 2015-11-20 | 2016-03-16 | 葛强林 | Axle spherical shell protection device |
| CN107314099A (en) * | 2017-07-24 | 2017-11-03 | 泸州开士乐工程技术有限责任公司 | A kind of multipurpose main reducing gear |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |