CN204186961U - A kind of durable type main reducing gear of drive axle assembly - Google Patents
A kind of durable type main reducing gear of drive axle assembly Download PDFInfo
- Publication number
- CN204186961U CN204186961U CN201420576753.2U CN201420576753U CN204186961U CN 204186961 U CN204186961 U CN 204186961U CN 201420576753 U CN201420576753 U CN 201420576753U CN 204186961 U CN204186961 U CN 204186961U
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- bevel gear
- shaft
- driving gear
- driving
- gear shaft
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Abstract
The utility model discloses a kind of durable type main reducing gear of drive axle assembly, comprise housing, bevel gear pair and differential mechanism, bevel gear pair comprises drive bevel gear and driven wheel of differential, drive bevel gear comprises driving gear shaft, the positioning boss that the output terminal of driving gear shaft is provided with driving bevel gear and axially stretches out outside driving bevel gear, the input end cover of driving gear shaft is equiped with input flange, input flange and driving gear shaft are respectively equipped with intermeshing internal spline and external splines, and the input end of driving gear shaft is also provided with the locking nut for input flange being compressed location, the installation shaft bearing between described input flange and driving bevel gear is provided with in housing, installation bearing is provided with between installation shaft bearing and active input shaft, also correspondingly with positioning boss in housing be provided with positioning bearing seat, between positioning bearing seat and positioning boss, be provided with positioning bearing, on input flange and described driving gear shaft, correspondence is provided with positioning pin hole.
Description
Technical field
The utility model belongs to mechanical transmission technical field, is specifically related to a kind of durable type main reducing gear of drive axle assembly.
Background technique
Ransaxle is generally made up of main reducing gear, differential mechanism, wheel drive and driving axle housing etc., its effect is that the power transmitted by universal driving device is folded over 90 ° of angles, the direction of transfer of change power, and reduce rotating speed by main reducing gear, after increasing torque, distribute to left and right semiaxis and driving wheel through differential mechanism.
Publication number is that the Chinese patent of 203847674U discloses a kind of main reducing gear of drive axle, comprising: housing; Driving bevel gear, be installed on described enclosure interior and be provided with clutch shaft bearing and the second bearing, its shaft is connected with flange assembly by spline; It is characterized in that, the adjustment pad of described driving bevel gear is between the outer ring and housing of described clutch shaft bearing.
Although this automobile driving axle main gear box assembly has higher sealability to a certain extent, still there is the defect that transmission efficiency is lower, working life is not high, reason is as follows:
1, the gear shaft of drive bevel gear only relies on two bearing radial locations between input flange and driving bevel gear, there is the defect that positioning precision is not high, and in carrying transmission process, the active force of what driving bevel gear was subject to come from driven bevel pinion has a Moment relative to bearing locating point, the position of driving bevel gear is caused to occur skew, and then causing bevel gear pair meshing performance to reduce, acceleration cone gear pair weares and teares, and reduces the working life of main gearbox assembly;
2, the axially locating of the gear shaft of drive bevel gear only relies on a Bolt to position, after a long time use, loosening easily appears in bolt, and then cause drive bevel gear axially occurring offset deviation, also the meshing performance of bevel gear pair can be caused to reduce and premature abrasion, reduce transmission efficiency and the working life of main gearbox assembly.
Summary of the invention
In view of this, the purpose of this utility model is to provide a kind of durable type main reducing gear of drive axle assembly, effectively can guarantee bevel gear pair engagement driving under the meshing condition of setting all the time, reduce the wearing and tearing of bevel gear pair, improve its working life.
For achieving the above object, the utility model provides following technological scheme:
A kind of durable type main reducing gear of drive axle assembly, comprise housing, bevel gear pair and differential mechanism, described bevel gear pair comprises drive bevel gear and driven wheel of differential, described drive bevel gear comprises driving gear shaft, the positioning boss that the output terminal of described driving gear shaft is provided with driving bevel gear and axially stretches out outside described driving bevel gear, the input end cover of driving gear shaft is equiped with input flange, described input flange and described driving gear shaft are respectively equipped with intermeshing internal spline and external splines, and the input end of described driving gear shaft is also provided with the locking nut for described input flange being compressed location,
The installation shaft bearing between described input flange and driving bevel gear is provided with in described housing, installation bearing is provided with between described installation shaft bearing and described active input shaft, also correspondingly with described positioning boss in described housing be provided with positioning bearing seat, between described positioning bearing seat and described positioning boss, be provided with positioning bearing; On described input flange and described driving gear shaft, correspondence is provided with positioning pin hole.
Further, described external splines is provided with the location spline tooth that at least one the facewidth is greater than other external spline teeth, correspondingly with described location spline tooth on described internal spline be provided with location spline, described positioning pin hole correspondence is arranged on described location spline tooth and location spline.
Further, be welded and fixed between described locking nut and described driving gear shaft, or between described locking nut and described driving gear shaft, be provided with the chock preventing described locking nut from loosening, or between described locking nut and described driving gear shaft, be provided with the texturing zone preventing described locking nut from loosening.
Further, described differential mechanism comprises left differential casing and right differential casing, described left differential casing is fixedly connected with described driven wheel of differential respectively with right differential casing, and be provided with the cross axle with its synchronous axial system in described left differential casing and right differential casing, described cross axle is set with planetary pinion, in described left differential casing and right differential casing, is respectively equipped with the differential gear engaged with described planetary pinion.
Further, input end oil sealing is also provided with between the periphery wall of described housing and described input flange.
Further, described installation bearing is two, is provided with adjustment pad between two described bearings mounted inner rings.
The beneficial effects of the utility model are:
Durable type main reducing gear of drive axle assembly of the present utility model, by arranging positioning boss and positioning bearing, can realize accurately locating the radial direction of driving gear shaft, even if driving bevel gear receives the active force from driven wheel of differential, driving gear shaft also there will not be radial deflection; By arranging positioning pin hole between input flange and driving gear shaft, utilizing locating stud can realize the axially locating of driving gear shaft, together with locking nut, driving gear shaft can be avoided to occur axis shift after a long time use; To sum up, durable type main reducing gear of drive axle assembly of the present utility model effectively can guarantee bevel gear pair engagement driving under the meshing condition of setting all the time, reduces the wearing and tearing of bevel gear pair, improves its working life.
Accompanying drawing explanation
In order to make the purpose of this utility model, technological scheme and beneficial effect clearly, the utility model provides following accompanying drawing to be described:
Fig. 1 is the structural representation of the utility model durable type main reducing gear of drive axle assembly embodiment;
Fig. 2 is the structural representation of the supporting structure of drive bevel gear.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail, and to make those skilled in the art better can understand the utility model being implemented, but illustrated embodiment is not as to restriction of the present utility model.
As shown in Figure 1, be the structural representation of the utility model durable type main reducing gear of drive axle assembly embodiment.The durable type main reducing gear of drive axle assembly of the present embodiment, comprise housing 1, bevel gear pair and differential mechanism, described bevel gear pair comprises drive bevel gear 2 and driven wheel of differential 3, described drive bevel gear 2 comprises driving gear shaft 4, the positioning boss 6 that the output terminal of described driving gear shaft 4 is provided with driving bevel gear 5 and axially stretches out outside described driving bevel gear 5, the input end cover of driving gear shaft 2 is equiped with input flange 7, described input flange 7 and described driving gear shaft 4 are respectively equipped with intermeshing internal spline and external splines, and the input end of described driving gear shaft 4 is also provided with the locking nut 8 for described input flange 7 being compressed location.
The installation shaft bearing 9 between described input flange 7 and driving bevel gear 5 is provided with in housing 1, be provided with between described installation shaft bearing 9 and described active input shaft 4 and bearing 10 is installed, also correspondingly with described positioning boss 6 in described housing 1 be provided with positioning bearing seat 11, between described positioning bearing seat 11 and described positioning boss 6, be provided with positioning bearing 12.On described input flange 7 and described driving gear shaft 4, correspondence is provided with positioning pin hole 13, is provided with locating stud in positioning pin hole.
The described installation bearing 10 of the present embodiment is two, is provided with adjustment pad 14, can realizes the accurate location and installation of two installation bearings 10, and can support driving gear shaft 4 better between the inner ring of two described installation bearings 10.Preferably, input end oil sealing 15 is also provided with between the periphery wall of housing 1 and described input flange 7.
The durable type main reducing gear of drive axle assembly of the present embodiment, by arranging positioning boss and positioning bearing, can realize accurately locating the radial direction of driving gear shaft, even if driving bevel gear receives the active force from driven wheel of differential, driving gear shaft also there will not be radial deflection; By arranging positioning pin hole between input flange and driving gear shaft, utilizing locating stud can realize the axially locating of driving gear shaft, together with locking nut, driving gear shaft can be avoided to occur axis shift after a long time use.To sum up, the durable type main reducing gear of drive axle assembly of the present embodiment effectively can guarantee bevel gear pair engagement driving under the meshing condition of setting all the time, reduces the wearing and tearing of bevel gear pair, improves its working life.
Further, described external splines is provided with the location spline tooth that at least one the facewidth is greater than other external spline teeth, correspondingly with described location spline tooth on described internal spline be provided with location spline, described positioning pin hole 13 correspondence is arranged on described location spline tooth and location spline, the external splines of the present embodiment is provided with the location spline tooth that a facewidth is greater than other external spline teeth, be convenient to orientation assemble, realize the location of pin-and-hole on internal spline and external splines.
Further, be welded and fixed between described locking nut 8 and described driving gear shaft 4, or between described locking nut 8 and described driving gear shaft 4, be provided with the chock preventing described locking nut from loosening, or between described locking nut 8 and described driving gear shaft 4, be provided with the texturing zone preventing described locking nut from loosening.Between the locking nut 8 of the present embodiment and described driving gear shaft 4, electric welding is fixed.
Further, the differential mechanism of the present embodiment comprises left differential casing 16 and right differential casing 17, described left differential casing 16 is fixedly connected with described driven wheel of differential 3 respectively with right differential casing 17, and be provided with the cross axle 18 with its synchronous axial system in described left differential casing 16 and right differential casing 17, described cross axle 18 is set with planetary pinion 19, the differential gear 20 engaged with described planetary pinion 19 is respectively equipped with in described left differential casing 16 and right differential casing 17, and hold by outputting power to take turns with the semiaxis 21 of two differential gear 20 synchronous axial system respectively.
The above embodiment is only for absolutely proving the preferred embodiment that the utility model is lifted, and protection domain of the present utility model is not limited thereto.The equivalent alternative or conversion that those skilled in the art do on the utility model basis, all within protection domain of the present utility model.Protection domain of the present utility model is as the criterion with claims.
Claims (6)
1. a durable type main reducing gear of drive axle assembly, comprise housing, bevel gear pair and differential mechanism, it is characterized in that: described bevel gear pair comprises drive bevel gear and driven wheel of differential, described drive bevel gear comprises driving gear shaft, the positioning boss that the output terminal of described driving gear shaft is provided with driving bevel gear and axially stretches out outside described driving bevel gear, the input end cover of driving gear shaft is equiped with input flange, described input flange and described driving gear shaft are respectively equipped with intermeshing internal spline and external splines, and the input end of described driving gear shaft is also provided with the locking nut for described input flange being compressed location,
The installation shaft bearing between described input flange and driving bevel gear is provided with in described housing, installation bearing is provided with between described installation shaft bearing and described active input shaft, also correspondingly with described positioning boss in described housing be provided with positioning bearing seat, between described positioning bearing seat and described positioning boss, be provided with positioning bearing; On described input flange and described driving gear shaft, correspondence is provided with positioning pin hole.
2. durable type main reducing gear of drive axle assembly according to claim 1, it is characterized in that: described external splines is provided with the location spline tooth that at least one the facewidth is greater than other external spline teeth, correspondingly with described location spline tooth on described internal spline be provided with location spline, described positioning pin hole correspondence is arranged on described location spline tooth and location spline.
3. durable type main reducing gear of drive axle assembly according to claim 1, it is characterized in that: be welded and fixed between described locking nut and described driving gear shaft, or between described locking nut and described driving gear shaft, be provided with the chock preventing described locking nut from loosening, or between described locking nut and described driving gear shaft, be provided with the texturing zone preventing described locking nut from loosening.
4. durable type main reducing gear of drive axle assembly according to claim 1, it is characterized in that: described differential mechanism comprises left differential casing and right differential casing, described left differential casing is fixedly connected with described driven wheel of differential respectively with right differential casing, and be provided with the cross axle with its synchronous axial system in described left differential casing and right differential casing, described cross axle is set with planetary pinion, in described left differential casing and right differential casing, is respectively equipped with the differential gear engaged with described planetary pinion.
5. durable type main reducing gear of drive axle assembly according to claim 1, is characterized in that: be also provided with input end oil sealing between the periphery wall of described housing and described input flange.
6. durable type main reducing gear of drive axle assembly according to claim 1, is characterized in that: described installation bearing is two, is provided with adjustment pad between two described bearings mounted inner rings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420576753.2U CN204186961U (en) | 2014-10-08 | 2014-10-08 | A kind of durable type main reducing gear of drive axle assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420576753.2U CN204186961U (en) | 2014-10-08 | 2014-10-08 | A kind of durable type main reducing gear of drive axle assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204186961U true CN204186961U (en) | 2015-03-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420576753.2U Expired - Fee Related CN204186961U (en) | 2014-10-08 | 2014-10-08 | A kind of durable type main reducing gear of drive axle assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204186961U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108895123A (en) * | 2018-08-22 | 2018-11-27 | 明阳智慧能源集团股份公司 | A kind of universal principal and subordinate's swing type gear drive and its synchronous hunting method |
| CN110985606A (en) * | 2019-12-27 | 2020-04-10 | 徐州徐工传动科技有限公司 | Main reducer assembly and wheel loader |
-
2014
- 2014-10-08 CN CN201420576753.2U patent/CN204186961U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108895123A (en) * | 2018-08-22 | 2018-11-27 | 明阳智慧能源集团股份公司 | A kind of universal principal and subordinate's swing type gear drive and its synchronous hunting method |
| CN108895123B (en) * | 2018-08-22 | 2023-09-22 | 明阳智慧能源集团股份公司 | Universal master-slave swing type gear transmission mechanism and synchronous swing method thereof |
| CN110985606A (en) * | 2019-12-27 | 2020-04-10 | 徐州徐工传动科技有限公司 | Main reducer assembly and wheel loader |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150304 Termination date: 20151008 |
|
| EXPY | Termination of patent right or utility model |