CN102022515A - Central differential speed reducer - Google Patents
Central differential speed reducer Download PDFInfo
- Publication number
- CN102022515A CN102022515A CN2010106049013A CN201010604901A CN102022515A CN 102022515 A CN102022515 A CN 102022515A CN 2010106049013 A CN2010106049013 A CN 2010106049013A CN 201010604901 A CN201010604901 A CN 201010604901A CN 102022515 A CN102022515 A CN 102022515A
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- gear
- speed reducer
- differential speed
- external
- ring gear
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Abstract
The invention relates to a central differential speed reducer. The central differential speed reducer comprises a sun gear, a planetary wheel, an annular gear and a planet carrier, and is characterized in that the excircle surface of the annular gear is provided with external teeth, thus forming an external gear; and the two sides of the annular gear are respectively fixedly provided with a stand. The invention has the beneficial effects that the annular gear and the external gear are combined into one part, the integral body of the annular gear and the external gear ensures more accurate transmission, and is simultaneously fixed by two stands, thus the structure is simplified, lubrication can be carried out conveniently, a plurality of lubricating points can be lubricated simultaneously, and transmission is smoother and steadier.
Description
Technical field
The invention belongs to retarder, relate in particular to a kind of concentrated differential speed reducer.
Background technique
The poor concentration speed reducer is mainly by sun gear, and planet wheel, ring gear and planet carrier constitute, and tooth-like relocation mechanism is adopted in its three planet wheel load uniform distribution, and promptly sun gear or planet carrier float, or sun gear is unsteady simultaneously with planet carrier.Gear in the retarder is the straight-tooth involute cylindrical gear, and it has in light weight, and volume is little, and transmission efficiency height, transmission range be big, operate steadily, low noise advantages.Present concentrated differential speed reducer, sun gear and axle key connect, and ring gear and external gear are connected into integral body by bolt and pin, and ring gear rotates by external gear, and sun gear and ring gear rotate the drive planet wheel simultaneously, and planet wheel is passed to output shaft by bearing pin.This structure can realize concentrating differential, in external toothing be split, get up to transmit steady inadequately again by bearing pin and Bolt Connection, be difficult for the location.And the difficult lubricated meeting of this in-house gear influence transmission effect.The shortcoming of poor concentration speed reducer, structure are complicated, required precision is high, make difficulty, and manufacture cost was higher when separate unit was produced.
Summary of the invention
The present invention is in order to overcome deficiency of the prior art, a kind of concentrated differential speed reducer to be provided, change the structural design that tradition is concentrated differential mechanism " ring gear connects with pin by bolt with external toothing ", can make designs simplification, conveniently processing, and is favourable lubricated; This structure can be lubricated a plurality of lubricating points simultaneously, makes the differential mechanism transmission more steady.
The present invention is achieved through the following technical solutions for achieving the above object, a kind of concentrated differential speed reducer, comprise sun gear, planet wheel, ring gear and planet carrier is characterized in that: the outer round surface of described ring gear is provided with external tooth and constitutes external gear, and described ring gear both sides are fixed with support respectively.
Beneficial effect: ring gear and external gear are combined into a part, and it is more accurate that ring gear and external gear close as a whole transmission, fixes with two supports simultaneously.Structure is just simplified, convenient lubricated, can lubricate a plurality of lubricating points simultaneously, transmission is more steady.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the structural representation of former concentrated differential speed reducer.
Embodiment
Below in conjunction with preferred embodiment, to details are as follows according to embodiment provided by the invention: see accompanying drawing for details, a kind of concentrated differential speed reducer, comprise sun gear 1, planet wheel 2, ring gear 3 and planet carrier 4, the outer round surface of described ring gear is provided with external tooth and constitutes external gear 5, and described ring gear both sides are fixed with support 6 respectively.Support is divided into lower bracket 6A and support 6B.
Working principle:
The differential planet gear transmission has the planetary pinion transmission of two degrees of freedom, be that it is to have three movable outer connection member (sun gears, ring gear and planet carrier) planetary gear train for the differential planet gear transmission, after the motion that must given two structures, the athleticism of all the other members is determined.
Sun gear of the present invention is to rotate by the drive of axle, and ring gear is to drive by external gear to rotate, and sun gear and ring gear rotate the drive planet wheel simultaneously, and planet wheel is delivered to planet carrier by bearing pin, thereby makes its rotation.Ring gear and external gear are combined into a part, and it is more accurate that ring gear and external gear close as a whole transmission, fixes with two supports simultaneously.Structure is just simplified, convenient lubricated, can lubricate a plurality of lubricating points simultaneously, transmission is more steady.
The above only is preferred embodiment of the present invention, is not structure of the present invention is done any pro forma restriction.Every foundation technical spirit of the present invention all still belongs in the scope of technological scheme of the present invention any simple modification, equivalent variations and modification that above embodiment did.
Claims (1)
1. a concentrated differential speed reducer comprises sun gear, and planet wheel, ring gear and planet carrier is characterized in that: the outer round surface of described ring gear is provided with external tooth and constitutes external gear, and described ring gear both sides are fixed with support respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106049013A CN102022515A (en) | 2010-12-24 | 2010-12-24 | Central differential speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106049013A CN102022515A (en) | 2010-12-24 | 2010-12-24 | Central differential speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102022515A true CN102022515A (en) | 2011-04-20 |
Family
ID=43864152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010106049013A Pending CN102022515A (en) | 2010-12-24 | 2010-12-24 | Central differential speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102022515A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102494102A (en) * | 2011-12-19 | 2012-06-13 | 大连理工大学 | Hydraulic-control limited rotational speed difference differential |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2281443Y (en) * | 1996-12-26 | 1998-05-13 | 杭州南方齿轮减速机工业公司 | Differential planet four dividing central driving gear box |
| CN201909008U (en) * | 2010-12-24 | 2011-07-27 | 天津君晟成套设备有限公司 | Centralized differential reducer |
-
2010
- 2010-12-24 CN CN2010106049013A patent/CN102022515A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2281443Y (en) * | 1996-12-26 | 1998-05-13 | 杭州南方齿轮减速机工业公司 | Differential planet four dividing central driving gear box |
| CN201909008U (en) * | 2010-12-24 | 2011-07-27 | 天津君晟成套设备有限公司 | Centralized differential reducer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102494102A (en) * | 2011-12-19 | 2012-06-13 | 大连理工大学 | Hydraulic-control limited rotational speed difference differential |
| CN102494102B (en) * | 2011-12-19 | 2013-12-25 | 大连理工大学 | Hydraulic-control limited rotational speed difference differential |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110420 |