CN104763777A - Main speed reducer assembly - Google Patents
Main speed reducer assembly Download PDFInfo
- Publication number
- CN104763777A CN104763777A CN201510049244.3A CN201510049244A CN104763777A CN 104763777 A CN104763777 A CN 104763777A CN 201510049244 A CN201510049244 A CN 201510049244A CN 104763777 A CN104763777 A CN 104763777A
- Authority
- CN
- China
- Prior art keywords
- differential
- speed reducer
- differential casing
- tooth
- main
- 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
Links
- 239000003638 chemical reducing agent Substances 0.000 title abstract description 13
- 238000000034 method Methods 0.000 abstract description 4
- 238000003754 machining Methods 0.000 abstract 2
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000306 component Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
Classifications
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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
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
- F16H1/20—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members
- F16H1/22—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
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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
- F16H48/40—Constructional details characterised by features of the rotating cases
-
- 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
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
-
- 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
- F16H2700/00—Transmission housings and mounting of transmission components therein; Cooling; Lubrication; Flexible suspensions, e.g. floating frames
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
Abstract
The invention relates to a main speed reducer assembly which comprises a speed reducer (1). The lower portion of the speed reducer is in matched connection with a differential (2), a driving gear (4) is connected inside the speed reducer through an input shaft (3), a driven gear (5) meshed with the driving gear is connected to the differential, and the differential comprises a first differential housing (2a) and a second differential housing (2b) which are connected in a matched mode. The main speed reducer assembly is characterized in that the first differential housing (2a) and the second differential housing form a symmetric structure, the driven gear is connected between the first differential housing and the second differential housing in a matched mode, and the driving gear and the driven gear are gradual contractile gears. The main speed reducer assembly has the advantages that a left housing and a right housing of the differential of the main speed reducer assembly are of same structures, appropriate bearings are matched on the two housing according to the demand, accordingly the purpose of reducing product weight is achieved, a product machining and assembling process is simplified, the product machining and assembling efficiency is improved, and the driving gear is the gradual contractile gear so that the service life of the gear is prolonged.
Description
Technical field
The present invention relates to a kind of automobile component, particularly a kind of main gearbox assembly.
Background technique
Main gearbox assembly is the core component of ransaxle, and it is in the end of power transmission system, and its fundamental function increases the torque transmitted by transmission shaft or speed changer, reduces the rotating speed that it transmits, and power is reasonably distributed to left and right driving wheel.Tradition is main subtracts differential mechanism shell that device assembly uses by a left side, the parts composition of right two different structures, and adding man-hour, about it, the blank of two housings is also different, assemble time first with bolt by a left side, right two poor shells connect together, poor housing assy will be assembled to by tooth with bolt again to get on, it also exists processing technology complexity, assemble loaded down with trivial details, and the shortcoming such as differential casing is heavier, and the master that present stage uses, contour gear is all adopted by gear, make its working life short, for solving above-mentioned shortcoming, through extensively retrieval, not yet find ideal technological scheme.
Summary of the invention
The object of the invention is to exist to solve present stage automobile main reducer assembly, processing technology be complicated, assemble loaded down with trivial details, main, by shortcomings such as service life of gear are short, and a kind of main gearbox assembly proposed.
To achieve these goals, present invention employs following technological scheme:
A kind of main gearbox assembly, comprise retarder, be connected differential mechanism below retarder, main tooth is connected by input shaft in retarder, differential mechanism connect with main tooth intermeshing by tooth, described differential mechanism comprises the first differential casing and second differential casing of corresponding matching connection, it is characterized in that:
A, described first differential casing and the second differential casing are symmetrical structure, the first flange plate is provided with in the inner side of the first differential casing, first ring-shaped step is provided with in the outside of the first flange plate inner side surface, the second flange plate is provided with in the inner side of the second differential casing, second ring-shaped step is provided with in the outside of the second flange plate inner side surface, described first ring-shaped step and the second ring-shaped step corresponding matching form an annular opening groove, are connected described by tooth in opening slot.
B, described main tooth and all adopted convergent gear by tooth.
On the basis of technique scheme, following further technological scheme can be had:
The outside of described first differential casing and the second differential casing is all connected bearing cap, described bearing cap comprises two symmetrically arranged half lids, described half lid comprises semicircular clamp, in clamp, be provided with bearing mounting groove, be provided with a connecting plate in the centre of the clamp of bearing mounting groove opening side, both sides are respectively equipped with a stiffening plate.
A stiffening plate is equipped with between each described stiffening plate and clamp.
Be optimized design, left and right poor shell uses identical blank to process, use when assembling bolt will by tooth, left and right poor shell is disposable connects together, design of part is optimized, production technology simplifies
The invention has the advantages that: the left and right shell of the differential mechanism of this device adopts identical structure, suitable bearing is being coordinated as required on two shells, thus reach the object alleviating product weight, and simplify Product processing and assembly technology, improve processing and the efficiency of assembling of product, main by tooth employing convergent gear, improve the working life of gear.
Accompanying drawing explanation
Fig. 1 is basic structure schematic diagram of the present invention;
Fig. 2 is half cover body structure schematic diagram of bearing cap.
Embodiment
In order to make the present invention clearly understand, describe in detail this device below in conjunction with accompanying drawing, specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
As shown in Figure 1, a kind of main gearbox assembly provided by the invention, comprise retarder 1, be connected differential mechanism 2 below retarder 1, described retarder 1 comprises reducer shell 1b, reducer shell 1b is provided with bearing support 1a, cavity 1c is provided with in reducer shell 1b, bearing support 1a by two bearings of input shaft 12 be rotatably assorted connect input shaft 3, a main tooth 4 is fixed by socket at input shaft 3, described differential mechanism 2 comprises the first differential casing 2a and the second differential casing 2b of two corresponding matching, differential mechanism 2 is bolted an annular be meshed with main tooth 4 by tooth 5, also be connected on speed reducer housing 1b respectively by differential bearing 7 in differential mechanism 2 both sides, be connected respectively an output axle shaft 6 in the first differential casing 2a and the second differential casing 2b, a differential gear 9 is connected in the inner side of each output axle shaft 6, it is characterized in that:
Described first differential casing 2a and the second differential casing 2b is symmetrical structure, the first flange plate 2c is provided with in the inner side of the first differential casing 2a, a first ring-shaped step 2e is provided with in the outside of the first flange plate 2c inner side surface, the second flange plate 2d is provided with in the inner side of the second differential casing 2b, a second ring-shaped step 2f is provided with in the outside of the second flange plate 2d inner side surface, described first ring-shaped step 2e and the second ring-shaped step 2f corresponding matching form an annular opening groove, are connected described by tooth 5 in opening slot.
Described main tooth 4 and all adopted convergent gear by tooth 5.
All be connected outside described first differential casing 2a and the second differential casing 2b a differential bearing 7, suitable bearing 7 is selected according to actual conditions, save cost, each differential bearing 7 is all connected in corresponding bearing cap 6, described bearing cap 6 comprises two symmetrical half lid 6a connected, described half lid 6a comprises semicircular clamp 6b, a semicircular bearing mounting groove 6c is provided with in clamp 6b, be provided with for assembling corresponding differential bearing 7 at bearing mounting groove 6c, bearing mounting groove 6c is provided with in clamp 6b, step 6g is provided with in bearing mounting groove 6c, a through hole 6h is equipped with in the both sides of clamp 6b opening, a connecting plate 6d is provided with in the centre of the clamp 6b of bearing mounting groove 6c opening side, both sides are respectively equipped with a stiffening plate 6e, a stiffening plate 6f is equipped with between each described stiffening plate 6e and clamp 6b.After assembling, be that small―gap suture coordinates between seam under the end face of described stiffening plate 6e and axle housing, when reality uses and between axle housing, play the effect mutually supported, substantially increase the main rigidity subtracting assembly integral, and then play minimizing operating noise and increase the main effect in working life subtracting assembly.
Claims (3)
1. a main gearbox assembly, comprise retarder (1), be connected differential mechanism (2) below retarder (1), main tooth (4) is connected by input shaft (3) in retarder (1), intermeshing by tooth (5) with main tooth (4) in the upper connection of differential mechanism (2), described differential mechanism (2) comprises the first differential casing (2a) and second differential casing (2b) of corresponding matching connection, it is characterized in that:
A, described first differential casing (2a) and the second differential casing (2b) are symmetrical structure, the first flange plate (2c) is provided with in the inner side of the first differential casing (2a), first ring-shaped step (2e) is provided with in the outside of the first flange plate (2c) inner side surface, the second flange plate (2d) is provided with in the inner side of the second differential casing (2b), second ring-shaped step (2f) is provided with in the outside of the second flange plate (2d) inner side surface, described first ring-shaped step (2e) and the second ring-shaped step (2f) corresponding matching form an annular opening groove, be connected in opening slot described by tooth (5),
B, described main tooth (4) and all adopted convergent gear by tooth (5).
2. a kind of main gearbox assembly according to claim 1, it is characterized in that: the outside of described first differential casing (2a) and the second differential casing (2b) is all connected bearing cap (6), described bearing cap (6) comprises two symmetrically arranged half lids (6a), described half lid (6a) comprises semicircular clamp (6b), in clamp (6b), be provided with bearing mounting groove (6c), be provided with a connecting plate (6d) in the centre of the clamp (6b) of bearing mounting groove (6c) opening side, both sides are respectively equipped with a stiffening plate (6e).
3. a kind of main gearbox assembly according to claim 2, is characterized in that: be equipped with a stiffening plate (6f) between each described stiffening plate (6e) and clamp (6b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510049244.3A CN104763777A (en) | 2015-01-31 | 2015-01-31 | Main speed reducer assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510049244.3A CN104763777A (en) | 2015-01-31 | 2015-01-31 | Main speed reducer assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104763777A true CN104763777A (en) | 2015-07-08 |
Family
ID=53645791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510049244.3A Pending CN104763777A (en) | 2015-01-31 | 2015-01-31 | Main speed reducer assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104763777A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106523638A (en) * | 2016-08-31 | 2017-03-22 | 苏州东风精冲工程有限公司 | Half box type new energy vehicle reducer |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2546969A (en) * | 1947-07-24 | 1951-04-03 | Timken Axle Co Detroit | Collars to prevent broken axle shaft fragments entering axle center section |
| US4821602A (en) * | 1986-11-04 | 1989-04-18 | Toyota Jidosha Kabushiki Kaisha | Support structure of differential gear unit |
| CN2531177Y (en) * | 2002-02-28 | 2003-01-15 | 陈耀裕 | Differential device driven by light power |
| CN1459580A (en) * | 2002-05-24 | 2003-12-03 | 达纳公司 | Mechanism for operating and locking external ring of rolling bearing with screw |
| CN101332823A (en) * | 2008-08-06 | 2008-12-31 | 永济新时速电机电器有限责任公司 | 20-ton narrow-track mine electric locomotive reduction gear |
| CN201836346U (en) * | 2010-08-26 | 2011-05-18 | 陕西汉德车桥有限公司 | Differential housing |
| CN202674222U (en) * | 2012-04-25 | 2013-01-16 | 江西江铃底盘股份有限公司 | Differential device bearing cover |
| CN203847656U (en) * | 2014-04-10 | 2014-09-24 | 东风德纳车桥有限公司 | Mounting distance variable differential assembly |
| CN204114073U (en) * | 2014-09-19 | 2015-01-21 | 中国第一汽车股份有限公司 | A kind of Novel drive axle final drive casing body structure |
| CN204459009U (en) * | 2015-01-31 | 2015-07-08 | 合肥美桥汽车传动及底盘系统有限公司 | A kind of main gearbox assembly |
-
2015
- 2015-01-31 CN CN201510049244.3A patent/CN104763777A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2546969A (en) * | 1947-07-24 | 1951-04-03 | Timken Axle Co Detroit | Collars to prevent broken axle shaft fragments entering axle center section |
| US4821602A (en) * | 1986-11-04 | 1989-04-18 | Toyota Jidosha Kabushiki Kaisha | Support structure of differential gear unit |
| CN2531177Y (en) * | 2002-02-28 | 2003-01-15 | 陈耀裕 | Differential device driven by light power |
| CN1459580A (en) * | 2002-05-24 | 2003-12-03 | 达纳公司 | Mechanism for operating and locking external ring of rolling bearing with screw |
| CN101332823A (en) * | 2008-08-06 | 2008-12-31 | 永济新时速电机电器有限责任公司 | 20-ton narrow-track mine electric locomotive reduction gear |
| CN201836346U (en) * | 2010-08-26 | 2011-05-18 | 陕西汉德车桥有限公司 | Differential housing |
| CN202674222U (en) * | 2012-04-25 | 2013-01-16 | 江西江铃底盘股份有限公司 | Differential device bearing cover |
| CN203847656U (en) * | 2014-04-10 | 2014-09-24 | 东风德纳车桥有限公司 | Mounting distance variable differential assembly |
| CN204114073U (en) * | 2014-09-19 | 2015-01-21 | 中国第一汽车股份有限公司 | A kind of Novel drive axle final drive casing body structure |
| CN204459009U (en) * | 2015-01-31 | 2015-07-08 | 合肥美桥汽车传动及底盘系统有限公司 | A kind of main gearbox assembly |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106523638A (en) * | 2016-08-31 | 2017-03-22 | 苏州东风精冲工程有限公司 | Half box type new energy vehicle reducer |
| CN106523638B (en) * | 2016-08-31 | 2019-03-08 | 苏州东风精冲工程有限公司 | Half box type new energy vehicle retarder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150708 |
|
| RJ01 | Rejection of invention patent application after publication |