CN202200836U - Upward-offset through type driving axle - Google Patents
Upward-offset through type driving axle Download PDFInfo
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- CN202200836U CN202200836U CN 201120327890 CN201120327890U CN202200836U CN 202200836 U CN202200836 U CN 202200836U CN 201120327890 CN201120327890 CN 201120327890 CN 201120327890 U CN201120327890 U CN 201120327890U CN 202200836 U CN202200836 U CN 202200836U
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- differential
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- offset
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Abstract
The utility model discloses an upward-offset through type driving axle which comprises an upward-offset through type main speed reducer connected to the middle part of an axle housing, wherein, an inter-gear differential is arranged on a front housing of the upward-offset through type main speed reducer; an inter-shaft differential is arranged in a back housing of the upward-offset through type main speed reducer and connected with one end of a through shaft assembly in a spline fit manner; the other end of the through shaft assembly is matched and connected with the axle housing; a drive small bevel gear is connected to the inter-shaft differential through a spline; a driven hyperboloidal bevel gear is connected to the inter-gear differential; the drive small bevel gear is meshed with the driven hyperboloidal bevel gear, so as to form an upward-offset gear pair; and the drive small bevel gear is a hyperboloidal bevel gear which is provided with leftward rotating teeth, is mounted in an upward-offset manner and rotates clockwise. The upward-offset through type driving axle has the advantages that the transmission manner of the through type driving axle is simplified, the manufacturing cost is reduced, the transmission efficiency is improved, the noise is effectively reduced, the cooling state and the lubrication state are improved, and the use reliability and the economy of the whole vehicle are improved.
Description
Technical field
The utility model relates to the heavy motor vehicle parts, is specifically related to a kind of multiaxis (more than three and three) heavy motor vehicle upper offset through-drive axles that join drive axle that are used for more.
Background technology
Present domestic multi-axle heavy type automobile for designs simplification, is simplified the layout of transmission shaft in design and manufacturing, the parts commonality is good and be convenient to form series of products, often adopts through-drive axle.The transmission shaft of two drive axles is series connected, and transmission shaft leads to another drive axle from from the nearer drive axle of part-time case, passing, and in this arrangement, transmission shaft must pass from drive axle, and this drive axle is called through-drive axle.The through main reduction gear structure that domestic multi-axle heavy type automobile through-drive axle is commonly used; Form by input shaft, shaft space difference speed latch mechanism, spline housing, active cylindrical wheel, passive cylindrical wheel, interaxle differential, thru shaft, thru shaft finishing bevel gear cuter, active spiral bevel, passive spiral bevel and differential assembly; Wherein the spline of input shaft through two ends respectively with input end flange and interaxle differential in the interaxle differential center cross connect; The initiatively bevel gear part of cylindrical wheel and the planetary wheel in interaxle differential engagement; Initiatively the cylindrical wheel of cylindrical wheel part and passive cylindrical wheel mesh; Passive cylindrical wheel connects with the active spiral bevel through spline; Initiatively spiral bevel and passive spiral bevel and differential assembly engagement, the planetary wheel engagement in thru shaft finishing bevel gear cuter and the interaxle differential, thru shaft connects with the thru shaft finishing bevel gear cuter through spline.The power of through-drive axle is by the input shaft input of through main reduction gear; Divide two line transmission through interaxle differential again, one through cylindrical wheel initiatively, passive cylindrical wheel, initiatively spiral bevel, passive spiral bevel and differential assembly and semiaxis be to the wheel transmission; Another thru shaft finishing bevel gear cuter in interaxle differential, thru shaft are to the rear driving axle transmission.Initiatively the end face tooth of cylindrical wheel through with the engagement of the end face tooth of spline housing, separate, realize locking, the differential of interaxle differential.This through-drive axle has the effect of power distribution preferably and transmission of power in how coherent general formula drive axle, but the through main reduction gear of this kind structure need be through cylindrical wheel adjutant thru shaft biasing, so that let thru shaft pass through.Therefore, have complex structure, manufacturing cost is high, and driving efficiency is low, and cooling and lubricating is bad, and volume is big, quality heavily waits problem.
Summary of the invention
The purpose of the utility model provides a kind of upper offset through-drive axle, and its compact conformation, low cost of manufacture, driving efficiency are high, cooling and lubricating is good, can improve the car opertion economy, keep the good crossing ability of automobile simultaneously.
The utility model utilizes the large and small gear axis line of hyperboloidal bevel gear set vertical but non-intersect each other, has the characteristics of certain offset, has designed the through main reduction gear of a kind of upper offset, replaces original through main reduction gear.
Usually the hand of spiral of biased direction, rotation direction and the gear of hyperboloidal bevel gear set is to stipulate like this: looked to its flank of tooth by the large conical gear vertex of a cone; And make small conical gear be in the right side; When at this moment if small conical gear is above the large conical gear horizontal center line; Then be upper offset, if small conical gear below the large conical gear horizontal center line time, then is a below-center offset.When the rotation direction of judgement gear is cw or conter clockwise, look to the back side of gear.When judging the hand of spiral of gear, be to look to its flank of tooth by the vertex of a cone of gear, if the bending direction of the gear teeth from its small end to holding greatly when moving towards for cw, then be called right-hand teeth, then be called left-hand teeth when conter clockwise moves towards.During below-center offset, small conical gear is that left-hand teeth, large conical gear are that right-hand teeth clockwise rotates; During upper offset, small conical gear is that right-hand teeth, large conical gear are that left-hand teeth rotates counterclockwise.This be because small conical gear as driving wheel, the concave surface of the gear teeth is a driving surface, the axial force that two conical gears bear during engagement all points to big end separately, gear clearance has the trend of increase, the gear teeth can be not stuck, relatively safety.General automotive engine rotation direction is certain (being clickwise), therefore, adopts the hyperboloidal bevel gear set through-coupling, can only be left-hand teeth as the small conical gear of input end, and below-center offset is arranged.But when automotive transmission is arranged, be connected in gearbox output end position on the driving engine, and the input end position is lower when being used to logical bridge input end and adopting below-center offset, will certainly cause the transmission shaft true joint angle that connects input end, mouth bigger so all than higher.Generally when automotive transmission designed, the transmission shaft universal-joint angle of cut must not be greater than 6 degree.Therefore, small conical gear is a left-hand teeth, and the general formula vehicle bridge of being used to that below-center offset is arranged is inapplicable for most of vehicles.Concrete technical scheme is following:
The described a kind of upper offset through-drive axle of the utility model comprises axle housing, is connected in the through main reduction gear of upper offset at axle housing middle part; On the front case of the through main reduction gear of upper offset, be provided with an inter-wheel differential; The left half axle and the end of right axle shaft that are located in the axle housing cooperate connection respectively with inter-wheel differential, the other end of left half axle and right axle shaft connects with the wheel reduction gear that is installed in the axle housing right ends respectively; In the rear housing of the through main reduction gear of upper offset, be provided with an interaxle differential, this interaxle differential connects with an end spline fitted of thru shaft assembly, and the other end of thru shaft assembly cooperates connection with axle housing; It is characterized in that: on said interaxle differential, one active small conical gear is arranged through splined; On said inter-wheel differential, be connected with a passive double curved surface conical gear; Initiatively small conical gear and passive double curved surface conical gear engagement constitutes the upper offset gear pair; Initiatively small conical gear is the double curved surface finishing bevel gear cuter, left-hand teeth, and upper offset is installed, and clockwise rotates.Like this; The axial force that two conical gears bear when both having satisfied engagement all points to separately big end, the gear teeth can be not stuck, safe requirement relatively; Make again that to be used to general formula vehicle bridge input end position higher, can effectively reduce the transmission shaft universal-joint angle of cut, satisfy the requirement of car transmissions design arrangement.
Described a kind of upper offset through-drive axle also comprises the drg that is connected in the axle housing both ends respectively.
Described a kind of upper offset through-drive axle; Its said interior interaxle differential of rear housing that is located at the through main reduction gear of upper offset; The planetary wheel that comprise with input shaft be the differential gear box of one, connect through bolt and differential gear box differential cover, cooperates the center cross that is connected in the differential gear box, cooperation is connected in cross-member ends respectively, be located on the differential cover and with planetary wheel ingear drive bevel gear and thru shaft finishing bevel gear cuter; Drive bevel gear connects with the axle journal spline fitted of active small conical gear; One end of thru shaft assembly passes from active small conical gear interstitial hole; Stretch in the differential gear box and connects with thru shaft finishing bevel gear cuter spline fitted, the thru shaft finishing bevel gear cuter meshes with planetary wheel, and input shaft passes through bearing and cooperates connection with rear housing; Also comprise cooperating the input end flange that is connected in input shaft, this input end flange is installed on the rear housing through oil seal seat, oil sealing and flange jam nut.
Described a kind of upper offset through-drive axle is provided with the shaft space difference speed lock set of controlling interaxle differential on rear housing.
Described a kind of upper offset through-drive axle, the two ends of its said active small conical gear are connected on the bearing seat and front case between front case and the rear housing through first group of tapered roller bearing cooperation.
Described a kind of upper offset through-drive axle, its said passive double curved surface finishing bevel gear cuter connects with inter-wheel differential through bolt.
Described a kind of upper offset through-drive axle, its said inter-wheel differential two ends are installed on the front case through second group of tapered roller bearing, are provided with differential locking-device assembly between the wheel of controlling inter-wheel differential at front case.
The utility model utilizes the characteristics that the large and small gear axis line of double curved surface bevel-gear pair is vertical but non-intersect each other, have certain offset, lets the thru shaft assembly pass from the driver pinion interstitial hole, makes interaxle differential, driver pinion and thru shaft assembly coaxial rotation; And let the thru shaft assembly pass through from the semiaxis top; Thereby simplified the type of drive of through-drive axle, reduced manufacturing cost, improved driving efficiency; Effectively reduce noise; Improve the cooling and lubricating situation, realized the lightweight of through-drive axle assembly, improved car load reliability of service and economy.
Description of drawings
Fig. 1 is the profile scheme drawing of the utility model;
Fig. 2 is the birds-eye view of Fig. 1;
Fig. 3 is the structural representation of the utility model;
Fig. 4 is the B-B rotation amplification view of Fig. 3;
Fig. 5 is existing multi-axle heavy type automobile through main reduction gear structural representation commonly used.
The specific embodiment
Specify the structure of the utility model below in conjunction with accompanying drawing:
Referring to Fig. 1, Fig. 2, Fig. 3 and a kind of upper offset through-drive axle shown in Figure 4, comprise the through main reduction gear 3 of the upper offset that is connected in axle housing 1 middle part; On the front case 6 of the through main reduction gear of upper offset, be provided with an inter-wheel differential 27; The left half axle 24 and the end of right axle shaft 29 that are located in the axle housing cooperate connection with inter-wheel differential 27 respectively, and the other end of left half axle and right axle shaft connects with the wheel reduction gear that is installed in the axle housing right ends 2 respectively; In the rear housing 8 of the through main reduction gear of upper offset, be provided with an interaxle differential, this interaxle differential connects with an end spline fitted of thru shaft assembly 5, and the other end of thru shaft assembly cooperates connection with axle housing;
On said interaxle differential, through splined one active small conical gear 22 is arranged, on said inter-wheel differential 27, be connected with a passive double curved surface conical gear 26, initiatively small conical gear and passive double curved surface conical gear engagement constitutes the upper offset gear pair; Initiatively small conical gear 22 is the double curved surface finishing bevel gear cuter, left-hand teeth, and upper offset is installed, and clockwise rotates.Like this; The axial force that two conical gears bear when both having satisfied engagement all points to separately big end, the gear teeth can be not stuck, safe requirement relatively; Make again that to be used to general formula vehicle bridge input end position higher, can effectively reduce the transmission shaft universal-joint angle of cut, satisfy the requirement of car transmissions design arrangement.
Further, also comprise the drg 4 that is connected in axle housing 1 both ends respectively.
Further; Interaxle differential in the said rear housing that is located at the through main reduction gear 3 of upper offset 8; The planetary wheel 16 that comprise the differential cover 19 that connects for the differential gear box of one, through bolt and differential gear box with input shaft 13, cooperates the center cross 17 that is connected in the differential gear box, cooperation is connected in cross-member ends respectively, be located on the differential cover 19 and with planetary wheel ingear drive bevel gear 18 and thru shaft finishing bevel gear cuter 15; Drive bevel gear 18 connects with the axle journal spline fitted of active small conical gear 22; One end of thru shaft assembly 5 passes from active small conical gear 22 interstitial holes; Stretch in the differential gear box and connects with thru shaft finishing bevel gear cuter 15 spline fitted, the thru shaft finishing bevel gear cuter meshes with planetary wheel 16, and input shaft 13 passes through bearing 9 and cooperates connection with rear housing 8; Also comprise cooperating the input end flange 12 that is connected in input shaft 13, this input end flange is installed on the rear housing 8 through oil seal seat 10, oil sealing 11 and flange jam nut 14.
Further, on rear housing 8, be provided with the shaft space difference speed lock set 7 of control interaxle differential.
Further, the two ends of said active small conical gear 22 are connected on the bearing seat 20 and front case 6 between front case 6 and the rear housing 8 through 21,23 cooperations of first group of tapered roller bearing.
Further, said passive double curved surface finishing bevel gear cuter 26 connects with inter-wheel differential 27 through bolt.
Further, said inter-wheel differential 27 two ends are installed on the front case 6 through second group of tapered roller bearing 25,28, are provided with differential locking-device assembly 30 between the wheel of controlling inter-wheel differential 27 at front case 6.
The utility model has been simplified drive mechanism owing to reduced the cylindrical gear pair in the present through main reduction gear structure, can make whole bridge weight lighter, improves its economy; Because input shaft, thru shaft assembly and initiatively small conical gear coaxial line rotation, input shaft will no longer bear the effect of axial force and diametral load, can effectively improve its service life; Because active small conical gear helical angle less (having only usually about 20 degree), suffered axial component is also less, can prolong the service life of its backup bearing; If middle back axle all adopts this upper offset structure, the transmission shaft in can making between back axle is on the same horizon, helps the work and the layout of transmission shaft.
Referring to existing multi-axle heavy type automobile through-drive axle shown in Figure 5 through main reduction gear structure commonly used; Mainly form by input shaft 5-6, shaft space difference speed latch mechanism 5-5, spline housing 5-7, active cylindrical wheel 5-8, passive cylindrical wheel 5-4, interaxle differential 5-9, thru shaft 5-11, thru shaft finishing bevel gear cuter 5-10, active spiral bevel 5-3, passive spiral bevel and differential assembly 5-2 etc.; Wherein the spline of input shaft 5-6 through two ends respectively with input end flange and interaxle differential 5-9 in the interaxle differential center cross connect bevel gear part and the interaxle differential 5 of active cylindrical wheel 5-8
-Planetary wheel engagement in 9; Initiatively the cylindrical wheel of cylindrical wheel 5-8 part and passive cylindrical wheel 5-4 mesh; Passive cylindrical wheel 5-4 connects with active spiral bevel 5-3 through spline; Initiatively spiral bevel 5-3 and passive spiral bevel and differential assembly 5-2 engagement, the planetary wheel engagement among thru shaft finishing bevel gear cuter 5-10 and the interaxle differential 5-9, thru shaft 5-11 connects with thru shaft finishing bevel gear cuter 5-10 through spline.The power of through-drive axle is by the input shaft 5-6 input of through main reduction gear; Divide two line transmission through interaxle differential 5-9 again, one through cylindrical wheel 5-8 initiatively, passive cylindrical wheel 5-4, initiatively spiral bevel 5-3, passive spiral bevel and differential assembly 5-2 and semiaxis be to the wheel transmission; Another thru shaft finishing bevel gear cuter 5-10 in interaxle differential 5-9, thru shaft 5-11 are to the rear driving axle transmission.Initiatively the end face tooth of cylindrical wheel 5-8 through with the engagement of the end face tooth of spline housing 5-7, separate, realize locking, the differential of interaxle differential.
Claims (7)
1. upper offset through-drive axle comprises axle housing (1), is connected in the through main reduction gear of upper offset (3) at axle housing (1) middle part; On the front case (6) of the through main reduction gear of upper offset (3), be provided with an inter-wheel differential (27); The left half axle (24) and the end of right axle shaft (29) that are located in the axle housing (1) cooperate connection with inter-wheel differential (27) respectively, and the other end of left half axle (24) and right axle shaft (29) connects with the wheel reduction gear (2) that is installed in axle housing (1) right ends respectively; In the rear housing (8) of the through main reduction gear of upper offset (3), be provided with an interaxle differential, this interaxle differential connects with an end spline fitted of thru shaft assembly (5), and the other end of thru shaft assembly (5) cooperates connection with axle housing (1); It is characterized in that: on said interaxle differential, one active small conical gear (22) is arranged through splined; On said inter-wheel differential (27), be connected with a passive double curved surface conical gear (26); Initiatively small conical gear (22) and passive double curved surface conical gear (26) engagement constitute the upper offset gear pair; Initiatively small conical gear (22) is the double curved surface finishing bevel gear cuter, left-hand teeth, and upper offset is installed, and clockwise rotates.
2. a kind of upper offset through-drive axle according to claim 1 is characterized in that: also comprise the drg (4) that is connected in axle housing (1) both ends respectively.
3. a kind of upper offset through-drive axle according to claim 1 and 2; It is characterized in that: the said interior interaxle differential of rear housing (8) that is located at the through main reduction gear of upper offset (3); Comprise the differential cover (19) that connects for the differential gear box of one, through bolt and differential gear box with input shaft (13), cooperates the center cross (17) that is connected in the differential gear box, cooperate the planetary wheel (16) that is connected in cross-member ends respectively, be located on the differential cover (19) and with planetary wheel ingear drive bevel gear (18) and thru shaft finishing bevel gear cuter (15); Drive bevel gear connects with the axle journal spline fitted of active small conical gear (22); One end of thru shaft assembly (5) passes from active small conical gear (22) interstitial hole; Stretch in the differential gear box and and connect with thru shaft finishing bevel gear cuter (15) spline fitted; Thru shaft finishing bevel gear cuter and planetary wheel (16) engagement, input shaft (13) cooperates connection through bearing (9) with rear housing (8); Also comprise cooperating the input end flange (12) that is connected in input shaft (13), this input end flange is installed on the rear housing (8) through oil seal seat (10), oil sealing (11) and flange jam nut (14).
4. according to claim 1,2 or 3 described a kind of upper offset through-drive axles, it is characterized in that: the shaft space difference speed lock set (7) that on rear housing (8), is provided with the control interaxle differential.
5. according to claim 1,2 or 3 described a kind of upper offset through-drive axles, it is characterized in that: the two ends of said active small conical gear (22) are connected on the bearing seat (20) and front case (6) between front case (6) and the rear housing (8) through first group of tapered roller bearing (21,23) cooperation.
6. according to claim 1,2 or 3 described a kind of upper offset through-drive axles, it is characterized in that: said passive double curved surface finishing bevel gear cuter (26) connects with inter-wheel differential (27) through bolt.
7. according to claim 1,2 or 3 described a kind of upper offset through-drive axles; It is characterized in that: said inter-wheel differential (27) two ends are installed on the front case (6) through second group of tapered roller bearing (25,28), are provided with differential locking-device assembly (30) between the wheel of controlling inter-wheel differential (27) at front case (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120327890 CN202200836U (en) | 2011-09-02 | 2011-09-02 | Upward-offset through type driving axle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120327890 CN202200836U (en) | 2011-09-02 | 2011-09-02 | Upward-offset through type driving axle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202200836U true CN202200836U (en) | 2012-04-25 |
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ID=45964972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120327890 Expired - Lifetime CN202200836U (en) | 2011-09-02 | 2011-09-02 | Upward-offset through type driving axle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202200836U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102358175A (en) * | 2011-09-02 | 2012-02-22 | 重庆大江工业有限责任公司 | Upper-offset through type driving axle |
| CN103057406A (en) * | 2012-12-30 | 2013-04-24 | 重庆大江工业有限责任公司 | Direct through type single-stage reduction drive axle |
-
2011
- 2011-09-02 CN CN 201120327890 patent/CN202200836U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102358175A (en) * | 2011-09-02 | 2012-02-22 | 重庆大江工业有限责任公司 | Upper-offset through type driving axle |
| CN103057406A (en) * | 2012-12-30 | 2013-04-24 | 重庆大江工业有限责任公司 | Direct through type single-stage reduction drive axle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190509 Address after: 401321 Fenghua Road, Yudong, Banan District, Chongqing, 901 Patentee after: Chongqing Dajiang Cheqiao Co., Ltd. Address before: 401321 Dajiang Industrial Park, Yudong Town, Banan District, Chongqing Patentee before: Chongqing Dajiang Industrial Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120425 |
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| CX01 | Expiry of patent term |