CN103375569A - Light speed reducer assembly - Google Patents

Light speed reducer assembly Download PDF

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Publication number
CN103375569A
CN103375569A CN2012101178093A CN201210117809A CN103375569A CN 103375569 A CN103375569 A CN 103375569A CN 2012101178093 A CN2012101178093 A CN 2012101178093A CN 201210117809 A CN201210117809 A CN 201210117809A CN 103375569 A CN103375569 A CN 103375569A
Authority
CN
China
Prior art keywords
bearing
speed reducer
reducer shell
mounting
bevel gear
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.)
Pending
Application number
CN2012101178093A
Other languages
Chinese (zh)
Inventor
张步良
朱锐
凌志峰
陈辉
陈卫星
王小召
曹定础
刘志英
唐建颖
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dongfeng Dana Axle Co Ltd
Original Assignee
Dongfeng Dana Axle Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Dongfeng Dana Axle Co Ltd filed Critical Dongfeng Dana Axle Co Ltd
Priority to CN2012101178093A priority Critical patent/CN103375569A/en
Publication of CN103375569A publication Critical patent/CN103375569A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a light speed reducer assembly. The light speed reducer assembly is characterized in that steps which are used for mounting bearings are directly cast on a speed reducer shell, the bearings are directly assembled on the speed reducer shell, a driving bevel gear is directly assembled in holes of the bearings, a plane of a through hole for mounting a guide bearing is omitted on a mounting surface of the speed reducer shell, holes which are used for mounting a first bearing and a second bearing are formed at two ends of a differential mechanism in the speed reducer shell, the size of the first bearing is different from that of the second bearing, and an oil inlet groove and oil outlet grooves are cast on the speed reducer shell. The light speed reducer assembly has the advantages that a speed reducer is light and is low in cost, and the driving bevel gear is high in mounting precision and mesh accuracy; space can be saved for designing driving and driven gears, a spatial foundation is provided for designing tooth surfaces of the gears, and a high-power-density design concept of the speed reducer can be eventually implemented; the differential mechanism is provided with the left bearing and the right bearing which have different sizes, so that the cost can be effectively reduced while the sufficient supporting strength is guaranteed.

Description

A kind of light reducing system device assembly
Technical field
The present invention relates to field of automobile, is a kind of light car axle speed reducer assembly specifically.
Background technique
Bevel housing is one of kernel component in the axle assembly, and its structure and intensity directly have influence on the performance and used life of whole retarder.Common retarder, larger to the spatial requirement of retarder, quality is also larger; The bearing lubrication of speed reducer assembly main cone is not enough, occurs easily burning to death the damage of the bearing such as peeling off; The identical meeting of differential bearing specification makes one of them bearing life higher and cause high expensive.
As shown in Figure 1, the existing position of reducer shell in speed reducer assembly, and the component that are connected with reducer shell: sequence number 1 is reducer shell, sequence number 2 is drive bevel gear, sequence number 3 is by dynamic bevel gear, sequence number 4, sequence number 5 are respectively to support fore bearing and the rear bearing of drive bevel gear 2, sequence number 6 is to support the guide bearing of drive bevel gear 2, sequence number 7 is to support the bearing support of drive bevel gear front and back bearings, bearing support 7 is connected on the reducer shell 1 by bolt 9, sequence number 8 is differential mechanisms, and main support is by dynamic bevel gear 3; Be furnished with the position number 10 that guide bearing 6 is installed in the reducer shell 1, need simultaneously to arrange the position of the bolt 9 of installation shaft bearing, width sequence number 11 to gear teeth face has certain limitation, spatial requirement to retarder is larger, and the differential bearing that specification is identical can make one of them bearing life higher and cause high expensive, is suitable for the larger structure of heavy axle self Dimensions.The overall dimensions specification is little, cost is low, quality is light, the high support and the retarder of Light-duty Vehicle requires, and existing retarder can not meet the demands.
Summary of the invention
For overcome existing light car axle quality large, occupy that the space is large, cost is high and the defective such as lack of lubrication, goal of the invention of the present invention is to provide a kind of light reducing system device assembly, connect by the nut that reduces bearing support, increase the power density of active and passive gear, adopt different differential bearings, to increase the main cone bearing to the supporting degree of drive bevel gear, make that retarder overall dimensions specification is less, lighter weight, power density be larger, increase the lubricated of drive bevel gear by big or small wheel location casting in subtracting shell into and out of oil groove.
For achieving the above object, the present invention directly casts front step and the backward step that fore bearing and rear bearing are installed on reducer shell, band is useful on fore bearing hole and the rear bearing hole of assembling fore bearing and rear bearing in the reducer shell, fore bearing and rear bearing directly are assemblied on the reducer shell, and drive bevel gear directly is assemblied in the hole of fore bearing and rear bearing; The attachment face of reducer shell is without the plane of the through hole that guide bearing is installed; The hole of reducer shell is interior, the two ends band of differential mechanism is useful on the installation different size bearing one with bearing two; Be cast with oil-feed tank and go out oil groove at reducer shell.
The present invention compared with prior art has the following advantages:
1, because the drive bevel gear bearing is directly installed on the reducer shell, make the retarder quality lighter, cost is lower; The installation precision of drive bevel gear is guaranteed, thereby guarantees the accuracy of mesh of drive bevel gear.
2, owing to adopting into and out of oil groove, so that main cone is lubricated more abundant.
3, owing to do not adopt guide bearing to support drive bevel gear, be that design main, driven gear saves the space, for the flank of tooth design of gear provides space basis, finally realize the design concept of the high power density of retarder.
4, the bearing that varies in size about the differential mechanism employing when realizing support strength, can effectively reduce cost.
Description of drawings
Fig. 1 is the structure diagram of existing speed reducer assembly;
Fig. 2 is structure diagram of the present invention.
As shown in Figure 2, the present invention directly casts front step 14 and the backward step 15 that fore bearing 4 and rear bearing 5 are installed on reducer shell 1, cast out the oil-feed tank 19 that lubricates for drive bevel gear 2 and go out oil groove 20, reducer shell 1 interior band is useful on fore bearing hole 16 and the rear bearing hole 17 of assembling fore bearing 4 and rear bearing 5, fore bearing 4 and rear bearing 5 directly are assemblied on the reducer shell 1, drive bevel gear 2 directly is assemblied in the hole of fore bearing 4 and rear bearing 5, there be not being connected of bearing support and reducer shell 1 in the speed reducer assembly, increased the master, the design space of the driven gear flank of tooth, improved the installation precision of drive bevel gear 2, reduced the outside dimensions of speed reducer assembly, reduce quality, reduced cost; The present invention is the mounting point of shaping-orientation bearing not, the attachment face of reducer shell 1 is without the plane 18 of the through hole that guide bearing is installed, do not use guide bearing, there has not been guide bearing, can be drive bevel gear 2 and saved the design space by the design of dynamic bevel gear 3, the wide flank of tooth 11 can reach more than 17% of pitch circle, can increase power density; In the reducer shell 1, the two ends band of differential mechanism 8 is useful on the hole of bearing 1 with the bearing 2 13 of installation different size, and the differential bearing 1 and the bearing 2 13 that vary in size can provide enough supports, and reduce cost.

Claims (2)

1. light reducing system device assembly, it is characterized in that: front step (14) and backward step (15) that fore bearing (4) and rear bearing (5) are installed in the upper directly casting of reducer shell (1), band is useful on fore bearing hole (16) and rear bearing hole (17) of assembling fore bearing (4) and rear bearing (5) in the reducer shell (1), fore bearing (4) and rear bearing (5) directly are assemblied on the reducer shell (1), and drive bevel gear (2) directly is assemblied in the hole of fore bearing (4) and rear bearing (5); The attachment face of reducer shell (1) is without the plane (18) of the through hole that guide bearing is installed; In the reducer shell (1), the two ends band of differential mechanism (8) is useful on the hole of bearing one (12) with the bearing two (13) of installation different size.
2. a kind of light reducing system device assembly according to claim 1 is characterized in that: be cast with oil-feed tank (19) and go out oil groove (20) at reducer shell (1).
CN2012101178093A 2012-04-21 2012-04-21 Light speed reducer assembly Pending CN103375569A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012101178093A CN103375569A (en) 2012-04-21 2012-04-21 Light speed reducer assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012101178093A CN103375569A (en) 2012-04-21 2012-04-21 Light speed reducer assembly

Publications (1)

Publication Number Publication Date
CN103375569A true CN103375569A (en) 2013-10-30

Family

ID=49461169

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2012101178093A Pending CN103375569A (en) 2012-04-21 2012-04-21 Light speed reducer assembly

Country Status (1)

Country Link
CN (1) CN103375569A (en)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2199072Y (en) * 1994-06-22 1995-05-31 周春耕 Driving bridge for automobile
US20030144107A1 (en) * 2002-01-31 2003-07-31 Orr Brian Christian Differential gear assembly
JP2005225255A (en) * 2004-02-10 2005-08-25 Tochigi Fuji Ind Co Ltd Support structure for driving shaft
CN101220850A (en) * 2008-01-15 2008-07-16 重庆渝安创新科技(集团)有限公司 Front speed reducer assembly of micro-car
CN201096184Y (en) * 2007-09-08 2008-08-06 辽宁曙光汽车集团股份有限公司 Main reducing gear assembly automobile drive bridge assembly for establishing bearing pretightening
CN201129441Y (en) * 2007-12-25 2008-10-08 北泰汽车悬架制造(北京)有限公司 Regulating mechanism of vehicle main reducing gear assembly
CN201461950U (en) * 2009-07-18 2010-05-12 东风汽车有限公司设备制造厂 Semi-axis sealing mechanism of main speed reducer
CN201461925U (en) * 2009-02-28 2010-05-12 东风德纳车桥有限公司 Reducing gear shell suitable for different lubricating methods of front axle and rear axle
CN201884615U (en) * 2010-11-29 2011-06-29 济南福安达重汽零部件制造有限公司 Axle main reducing gear casing and axle main reducing gear assembly
CN202545757U (en) * 2012-04-21 2012-11-21 东风德纳车桥有限公司 Light-weighted speed reducer assembly

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2199072Y (en) * 1994-06-22 1995-05-31 周春耕 Driving bridge for automobile
US20030144107A1 (en) * 2002-01-31 2003-07-31 Orr Brian Christian Differential gear assembly
JP2005225255A (en) * 2004-02-10 2005-08-25 Tochigi Fuji Ind Co Ltd Support structure for driving shaft
CN201096184Y (en) * 2007-09-08 2008-08-06 辽宁曙光汽车集团股份有限公司 Main reducing gear assembly automobile drive bridge assembly for establishing bearing pretightening
CN201129441Y (en) * 2007-12-25 2008-10-08 北泰汽车悬架制造(北京)有限公司 Regulating mechanism of vehicle main reducing gear assembly
CN101220850A (en) * 2008-01-15 2008-07-16 重庆渝安创新科技(集团)有限公司 Front speed reducer assembly of micro-car
CN201461925U (en) * 2009-02-28 2010-05-12 东风德纳车桥有限公司 Reducing gear shell suitable for different lubricating methods of front axle and rear axle
CN201461950U (en) * 2009-07-18 2010-05-12 东风汽车有限公司设备制造厂 Semi-axis sealing mechanism of main speed reducer
CN201884615U (en) * 2010-11-29 2011-06-29 济南福安达重汽零部件制造有限公司 Axle main reducing gear casing and axle main reducing gear assembly
CN202545757U (en) * 2012-04-21 2012-11-21 东风德纳车桥有限公司 Light-weighted speed reducer assembly

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Application publication date: 20131030