CN201502682U - Automobile main reducer assembly - Google Patents
Automobile main reducer assembly Download PDFInfo
- Publication number
- CN201502682U CN201502682U CN2009203085326U CN200920308532U CN201502682U CN 201502682 U CN201502682 U CN 201502682U CN 2009203085326 U CN2009203085326 U CN 2009203085326U CN 200920308532 U CN200920308532 U CN 200920308532U CN 201502682 U CN201502682 U CN 201502682U
- Authority
- CN
- China
- Prior art keywords
- bevel gear
- bearing
- drive bevel
- driving bevel
- automobile
- 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.)
- Expired - Lifetime
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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
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- 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
- F16H2048/423—Constructional details characterised by features of the input shafts, e.g. mounting of drive gears thereon characterised by bearing arrangement
Abstract
The utility model provides an automobile main reducer assembly, which relates to an automobile reducer, which comprises a main reducing shell, a driving bevel gear, a driving bevel gear support bearing, a flange, a cylindrical roller bearing, a differential mechanism and a driven bevel gear assembly, wherein the driving bevel gear support bearing is a diallel cylindrical roller bearing, an inner ring of the diallel cylindrical roller bearing is matched with a shaft neck of the driving bevel gear, an outer ring is matched with a bearing seat, is closely pressed through a bearing which is connected on the bearing seat, and the bearing seat is fixed on the main reducing shell through a connecting piece. The shaft neck of the driving bevel gear is a linear optical shaft. The length of the driving bevel gear is short, thereby being capable of reducing the mounting height of the automobile main reducer assembly, leading a rotating shaft to be easily mounted and arranged, being favorable to reduce noise and abnormal sound. The automobile reducer further simplifies the mounting adjust process of the driving bevel gear support bearing, reduces the adjusting difficulty, can be assembled with a higher powered engine and a retarder with bigger torque, and is suitable to be arranged on a medium bus of a 8-10m postpositive engine.
Description
[technical field]:
The utility model relates to a kind of car deceleration device, particularly a kind of automobile main reducer assembly that is used for the middle bus vehicle bridge.
[background technique]:
The vehicle bridge that existing common middle bus is used, its load rating is generally below 9.5t, output torque is all less than 25000N.m, and the drive bevel gear of its main gearbox assembly all adopts traditional bearing support structure, promptly be to adopt former and later two drive bevel gear spring bearings, and between these two drive bevel gear spring bearings, separating long distance, bearing clearance will be adjusted by selecting pad.Adopt the drive bevel gear length of this structure longer, lug height is also higher, thereby cause the main gearbox assembly excessive height, when being installed in the vehicle of 8～10m rear engine, too high main gearbox assembly not only causes the installing space deficiency of transmission shaft, also easily causes equivalent angle excessive, and causes angular acceleration to increase, master, driven gear are produced exciting, thereby produce main reducing gear resonance abnormal sound.Simultaneously because the position that the axle journal of drive bevel gear promptly cooperates with the drive bevel gear spring bearing is multistage multidiameter shaft, its intensity a little less than, twist off easily when being equipped with retarder.The dynamic load rating of traditional in addition drive bevel gear spring bearing is also not enough, and tapering is less, can't bear the axial force that retarder brings.
[model utility content]:
The technical problems to be solved in the utility model is: the automobile main reducer assembly of program and difficulty is adjusted in the installation that provides a kind of and be more convenient for being installed on 8～10m rear-engine bus, simplified the drive bevel gear spring bearing.
Further technical problem to be solved in the utility model is: the motor of high-power reaches the more retarder of high pulling torque to make this automobile main reducer assembly can be equipped with more.
The technological scheme that solves the problems of the technologies described above is: a kind of automobile main reducer assembly, comprise and main subtract housing, drive bevel gear, drive bevel gear spring bearing, oil sealing, bead, roller bearing, differential mechanism and by the dynamic bevel gear assembly, described drive bevel gear spring bearing is a double-row conical bearing, the inner ring of this double-row conical bearing cooperates with the axle journal of drive bevel gear, the outer ring cooperates with bearing support, and compress by the bearing cap that is connected on the bearing support, bearing support is fixed in main subtracting on the housing by link.
Further technological scheme of the present utility model is: the axle journal of described drive bevel gear is the straight line optical axis.
Another technological scheme of the present utility model is: described double-row conical bearing by the outer ring, be positioned at two row tapered rollers of outer ring, two inner rings and two retainers jointly and form; The endoporus of described two inner rings matches with the axle journal of drive bevel gear, and the cylindrical of outer ring cooperates with bearing support.
Because adopt said structure, the automobile main reducer assembly of the utility model is compared with existing main gearbox assembly, has following beneficial effect:
1, can shorten the setting height(from bottom) of automobile main reducer assembly:
Because this automobile main reducer assembly adopts a double-row conical bearing to replace existing former and later two drive bevel gear spring bearings, and the end face of two inner rings of this double-row conical bearing is close to and is arranged, promptly the distance between two inner rings is almost nil, therefore can shorten the length of drive bevel gear greatly, thereby also shortened the setting height(from bottom) of automobile main reducer assembly, when making it to be installed on the middle bus of 8～10m rear engine, transmission shaft is easier to mounting arrangements, more helps reducing the noise abnormal sound.
2, program and difficulty are adjusted in the installation of having simplified the drive bevel gear spring bearing:
Because drive bevel gear spring bearing of the present utility model is a double-row conical bearing, the bearing clearance of this double-row conical bearing is that the pairing break-in by double-row roller bearing guarantees, not only simplified the installation of drive bevel gear spring bearing and adjusted program, also reduced it and adjusted difficulty.
3, can being equipped with more, the motor of high-power reaches the more retarder of high pulling torque:
Because the axle journal of drive bevel gear described in the utility model is the straight line optical axis that external diameter equates with the position that double-row conical bearing cooperates promptly, just the axle journal of this drive bevel gear has avoided adopting traditional multistage multidiameter shaft structure, thereby its axle journal diameter of overstriking effectively, to strengthen its axle journal intensity, the rigidity of support of drive bevel gear is greatly enhanced; In addition, because drive bevel gear spring bearing of the present utility model is a double-row conical bearing, its dynamic load rating is bigger, and tapering is also bigger, can bear the axial force that retarder brings fully, therefore, output torque of the present utility model can be brought up to 27000N.m, enables the motor of equipped more high-power and the retarder of high pulling torque more.
4, cost of production is low:
Because of the present utility model relatively simple for structure, but also program is adjusted in the installation of having simplified the drive bevel gear bearing, and therefore, this production cost of products is lower, is easy to promote the use of.
Below, the technical characteristics to the automobile main reducer assembly of the utility model is further described in conjunction with the accompanying drawings and embodiments.
[description of drawings]:
Fig. 1: the structural representation of the automobile main reducer assembly of the utility model;
Fig. 2: the structural representation of the double-row conical bearing that the utility model adopted;
The label declaration of each major part is as follows among the figure:
1-master subtracts housing, the 2-drive bevel gear, and the 201-axle journal, the 3-bearing support,
The 4-double-row conical bearing, the 401-outer ring, the 402-tapered roller, the 403-inner ring,
The 404-retainer, the 5-oil sealing, 6-bead nut, the 7-lock pin,
The 8-pad, 9-bead assembly, the 10-hex head bolt, 11-bullet pad,
12-bullet pad, the 13-bolt, the 14-bearing cap, the 15-roller bearing,
The 16-differential mechanism with by the dynamic bevel gear assembly.
[embodiment]:
Embodiment:
A kind of automobile main reducer assembly, this automobile main reducer assembly comprise and main subtract housing 1, drive bevel gear 2, drive bevel gear spring bearing, oil sealing 5, bead 9, roller bearing 15, differential mechanism and by dynamic bevel gear assembly 16.As shown in fig. 1, described roller bearing 15 outer rings subtract housing 1 with the master and cooperate, and inner ring cooperates with drive bevel gear 2; Described drive bevel gear spring bearing is a double-row conical bearing 4, this double-row conical bearing 4 by an outer ring 401, be positioned at two row tapered rollers 402 of outer ring, two inner rings 403 and two retainers 404 jointly and constitute (referring to Fig. 2), the end face of two inner rings 403 is close to and is arranged, and can guarantee the bearing play between two row tapered rollers up and down by machining accuracy; The endoporus of two inner rings 403 cooperates with the axle journal 201 of drive bevel gear 2, the cylindrical of outer ring 401 cooperates with bearing support 3, and compress by bearing cap 14, this bearing cap 14 is fixedly connected on the bearing support 3 by bullet pad 12 and bolt 13, and bearing support 3 is fixed in main subtracting on the housing 1 by link bullet pad 11 and bolt 10 again; Described oil sealing 5 is pressed in the bearing support 3, and bead 9 cooperates with drive bevel gear 2 by spline, compresses by pad 8 and bead nut 6 again, uses lock pin 7 locked then.Described differential mechanism with crossed bearing cap by dynamic bevel gear assembly logical 16 and be fixed in main subtracting on the housing 1, and make drive bevel gear 2 and meshed by dynamic bevel gear; The axle journal 201 of described drive bevel gear 2 is straight line optical axises that external diameter equates, so that its axle journal diameter of overstriking effectively, to strengthen its axle journal intensity.
Claims (3)
1. automobile main reducer assembly, comprise the main housing (1) that subtracts, drive bevel gear (2), the drive bevel gear spring bearing, oil sealing (5), bead (9), roller bearing (15), differential mechanism with by dynamic bevel gear assembly (16), it is characterized in that: described drive bevel gear spring bearing is double-row conical bearing (4), the inner ring of this double-row conical bearing (4) cooperates with the axle journal (201) of drive bevel gear (2), the outer ring cooperates with bearing support (3), and compress by the bearing cap (14) that is connected on the bearing support (3), bearing support (3) is fixed in main subtracting on the housing (1) by link.
2. automobile main reducer assembly according to claim 1 is characterized in that: the axle journal (201) of described drive bevel gear (2) is the straight line optical axis.
3. automobile main reducer assembly according to claim 1 and 2 is characterized in that: two row tapered rollers (402), two inner rings (403) and two retainers (404) that described double-row conical bearing (4) is positioned at the outer ring by outer ring (401), are jointly formed; The endoporus of described two inner rings (403) matches with the axle journal (201) of drive bevel gear (2), and the cylindrical of outer ring (401) cooperates with bearing support (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203085326U CN201502682U (en) | 2009-08-21 | 2009-08-21 | Automobile main reducer assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203085326U CN201502682U (en) | 2009-08-21 | 2009-08-21 | Automobile main reducer assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201502682U true CN201502682U (en) | 2010-06-09 |
Family
ID=42453615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203085326U Expired - Lifetime CN201502682U (en) | 2009-08-21 | 2009-08-21 | Automobile main reducer assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201502682U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103968032A (en) * | 2013-01-24 | 2014-08-06 | Zf腓特烈斯哈芬股份公司 | Drive device for the road wheels of a vehicle |
| CN104019213A (en) * | 2014-06-20 | 2014-09-03 | 方盛车桥（柳州）有限公司 | Main reducer assembly with unit bearing with integrated flange and bearing base |
| CN105539134A (en) * | 2015-12-30 | 2016-05-04 | 辽宁曙光汽车集团股份有限公司 | Conveniently assembled and maintained axle speed reducer |
| CN107061739A (en) * | 2017-03-09 | 2017-08-18 | 湖北车桥有限公司 | A kind of main tooth oil enveloping structure of rear axle reductor assembly |
| CN108916365A (en) * | 2018-05-30 | 2018-11-30 | 汽解放汽车有限公司 | A kind of vehicle bridge retarder lightweight structure |
| CN109780179A (en) * | 2019-01-08 | 2019-05-21 | 一汽解放汽车有限公司 | A kind of commercial vehicle main cone bearing pre-tightening structure and its Method of Adjustment |
-
2009
- 2009-08-21 CN CN2009203085326U patent/CN201502682U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103968032A (en) * | 2013-01-24 | 2014-08-06 | Zf腓特烈斯哈芬股份公司 | Drive device for the road wheels of a vehicle |
| CN104019213A (en) * | 2014-06-20 | 2014-09-03 | 方盛车桥（柳州）有限公司 | Main reducer assembly with unit bearing with integrated flange and bearing base |
| CN105539134A (en) * | 2015-12-30 | 2016-05-04 | 辽宁曙光汽车集团股份有限公司 | Conveniently assembled and maintained axle speed reducer |
| CN105539134B (en) * | 2015-12-30 | 2018-05-04 | 辽宁曙光汽车集团股份有限公司 | Assemble vehicle bridge retarder easy to maintenance |
| CN107061739A (en) * | 2017-03-09 | 2017-08-18 | 湖北车桥有限公司 | A kind of main tooth oil enveloping structure of rear axle reductor assembly |
| CN108916365A (en) * | 2018-05-30 | 2018-11-30 | 汽解放汽车有限公司 | A kind of vehicle bridge retarder lightweight structure |
| CN109780179A (en) * | 2019-01-08 | 2019-05-21 | 一汽解放汽车有限公司 | A kind of commercial vehicle main cone bearing pre-tightening structure and its Method of Adjustment |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100609 |