CN104482164A - Limited slip differential - Google Patents
Limited slip differential Download PDFInfo
- Publication number
- CN104482164A CN104482164A CN201410802189.6A CN201410802189A CN104482164A CN 104482164 A CN104482164 A CN 104482164A CN 201410802189 A CN201410802189 A CN 201410802189A CN 104482164 A CN104482164 A CN 104482164A
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- CN
- China
- Prior art keywords
- gear
- worm
- changeover part
- worm screw
- axle shaft
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- 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.)
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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
- F16H48/00—Differential gearings
- F16H48/20—Arrangements for suppressing or influencing the differential action, e.g. locking devices
- F16H48/28—Arrangements for suppressing or influencing the differential action, e.g. locking devices using self-locking gears or self-braking gears
- F16H48/285—Arrangements for suppressing or influencing the differential action, e.g. locking devices using self-locking gears or self-braking gears with self-braking intermeshing gears having parallel axes and having worms or helical teeth
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
- Gear Transmission (AREA)
Abstract
The invention discloses a limited slip differential, which comprises a casing, a left output half shaft and a right output half shaft, wherein the left output half shaft and the right output half shaft are assembled at the left end and the right end of the casing, and a left conversion part and a right conversion part are assembled in the casing and are correspondingly engaged; the left conversion part comprises at least one group of worm and worm gear and a first gear, a third gear is arranged on the worm and is engaged with a second gear of the left output half shaft, the worm wheel is assembled in the casing through a shaft rod, and is engaged with the worm of the corresponding group, and the first gear and the worm wheel are coaxially assembled on the same shaft rod; the right conversion part comprises at least one group of worm and worm gear and a fourth gear, a sixth gear is arranged on the worm and is engaged with a fifth gear of the right output half shaft, the worm wheel is assembled in the casing through a shaft rod, and is engaged with the worm of the corresponding group, the fourth gear and the worm wheel are coaxially assembled on the same shaft rod, and the fourth gear is engaged with the first gear of the left conversion part. The limited slip differential can realize the limited slip and corrosion-resistant functions.
Description
Technical field
The present invention relates to mechanical transmission box of tricks, specifically a kind of limited slip differential.
Background technique
Differential mechanism is mainly used on car transmissions, open differential is made up of parts such as planetary pinion, planetary wheel carrier (housing), differential gears, the power of motor enters differential mechanism through transmission shaft, Direct driver planetary wheel carrier, left and right semiaxis is driven again by planetary wheel carrier, drive left and right wheels respectively, when automobile is kept straight on, left and right wheels is equal with planetary wheel carrier three rotating speed, keeps state of equilibrium, during automobile turning, balance is broken, and outboard wheel rotating speed increases, and nearside wheel rotating speed reduces, realize speed difference, accomplish automatic adjustment.But running into rugged, heavy road condition, skidding is dallied even completely to drive wheel to occur, whole driving force can be wasted on the wheel of skidding by differential mechanism, and driving power cannot be acted on effective wheel.
Chinese patent literature discloses one " differential mechanism " (patent No. CN201010264710.7 day for announcing: 2010.12.1), this differential mechanism can provide a kind of with the diverse pure machinery type of prior art thinking, can the non-slip again differential mechanism of differential, solve the problem in limited-slip differential inner worm and gear working life simultaneously, but inner body is more, require to coordinate closely, mechanism easily weares and teares, if abrasion condition is different, part likely produces mutual interference, affect using effect, working life is shorter.If use special material, price can uprise, and technological requirement also raises.
Summary of the invention
The object of the invention is to: for above-mentioned the deficiencies in the prior art, a kind of anti-skidding, anti abrasive limited slip differential is provided.
The technical solution used in the present invention is, a kind of limited slip differential, comprise housing, left output axle shaft and right output axle shaft, described left and right output axle shaft is assemblied in the left and right two ends of housing, it is characterized in that: be equipped with the left changeover part of corresponding engagement and right changeover part in described housing; Described left changeover part is primarily of at least one group of worm screw, worm gear and the first gear composition, described worm screw is provided with the 3rd gear of the second gear on the left output axle shaft of engagement, described worm gear to be assemblied in housing by axostylus axostyle and worm gear is meshed with corresponding group of worm screw, and described first gear and worm gear are assemblied on same axostylus axostyle with coaxial manner; Described right changeover part is primarily of at least one group of worm screw, worm gear and the 4th gear composition, described worm screw is provided with the 6th gear of the 5th gear on the right output axle shaft of engagement, described worm gear to be assemblied in housing by axostylus axostyle and worm gear is meshed with corresponding group of worm screw, described 4th gear and worm gear are assemblied on same axostylus axostyle with coaxial manner, and described 4th gear is meshed with the first gear of left changeover part.
The worm screw of described left changeover part is two groups, often organizes two worm screws.
Further, on the axostylus axostyle of the worm gear of the first arrangement of gears between two groups of worm screws of described left changeover part.
The worm screw of described right changeover part is two groups, often organizes two worm screws.
Further, on the axostylus axostyle of the worm gear of the 4th arrangement of gears between two groups of worm screws of described right changeover part.
Described enclosure interior has at least two relatively independent cavitys, and left side cavity is for assembling left changeover part, right side cavity for assembling right changeover part.
The invention has the beneficial effects as follows:
1. with CN201010264710.7 contrastingly, the present invention utilizes worm gear, the left and right of worm screw and straight-tooth gear is arranged and coordinated, ensure that differential mechanism complete locking automatically, ensure that the mutual noninterference of differential mechanism two output axle shaft, inside when avoiding turning, the oscillation phenomenon that produces of the speed discrepancy of outboard wheel, when unsettled, slippery road surface travel, well solve wheel-slip idle running, have the single wheel of driving force relatively to slow down by differential casing;
2. with CN201010264710.7 contrastingly, add working life, organize worm gear, worm screw conbined usage more, reduce in single part the frictional force of bearing, the frictional force of bearing is divided equally on each part, makes it wear and tear and greatly reduces;
3. be all standardization, industrialization for worm gear, worm screw, angular wheel, straight-tooth gear and output axle shaft, accuracy of manufacturing and manufacture process requirement difficulty low.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further illustrated.
Fig. 1 is front view of the present invention.
Fig. 2 is plan view of the present invention.
Fig. 3 is partial left side view of the present invention.
Code name implication in figure: 1-housing; 2-left output axle shaft; 201-the second gear; 3-right output axle shaft; 301-the five gear; 4-left changeover part; 401-worm screw; 402-worm gear; 403-the first gear; 404-the three gear; 5-right changeover part; 501-worm screw; 502-worm gear; 503-the four gear; 504-the six gear; 6-bearing support; 7-angular wheel.
Embodiment
embodiment 1
Shown in Fig. 1, Fig. 2, Fig. 3: a kind of limited slip differential, comprise housing 1, left output axle shaft 2 and right output axle shaft 3.
Wherein, housing 1 inside has at least two relatively independent cavitys.Left side cavity is for assembling left changeover part 4, and right side cavity is for assembling right changeover part 5.Left output axle shaft 2 is assemblied in the left end of housing 1, and is connected with the left changeover part 4 assembled in housing 1, and right output axle shaft 3 is assemblied in the right-hand member of housing 1, and is connected with the right changeover part 5 assembled in housing 1.
Left changeover part 4 is primarily of two groups, the worm screw 401(often organizing two is at least a group, often group is the worm screw 401 of, but in order to ensure the stability of transmission, generally select symmetrical two groups, due to the increase of worm screw 401 radical, the part of other correspondence is caused to increase together, each part increased is in a symmetrical arrangement again, thus ensure that the wearing and tearing that each part evenly bears frictional force and brings, improve the wear-resisting property of differential mechanism entirety, by actual conditions select often to organize worm screw 401 radical and for other part coordinated together, it is two needs that just can meet reality that worm screw 401 is often organized in general selection), worm gear 402 and the first gear 403 form, described worm screw 401 is provided with the 3rd gear 404 of the second gear 201 on the left output axle shaft 2 of engagement, described worm gear 402 is assemblied in housing 1 by axostylus axostyle, and worm gear 402 is meshed with corresponding group of worm screw 401, described first gear 403 is assemblied on same axostylus axostyle with worm gear 402 with coaxial manner, simultaneously, first gear 403 of left changeover part 4 is arranged on the axostylus axostyle of the worm gear 402 between two groups of worm screws 401, further ensure that the stability of transmission, more reasonable structure,
Right changeover part 5 is mainly two groups, the worm screw 501(often organizing two is at least a group, often group is the worm screw 501 of, but in order to ensure the stability of transmission, generally select symmetrical two groups, due to the increase of worm screw 501 radical, the part of other correspondence is caused to increase together, each part increased is in a symmetrical arrangement again, thus ensure that the wearing and tearing that each part evenly bears frictional force and brings, improve the wear-resisting property of differential mechanism entirety, by actual conditions select often to organize worm screw 501 radical and for other part coordinated together, it is two needs that just can meet reality that worm screw 501 is often organized in general selection), worm gear 502 and the 4th gear 503 form, described worm screw 501 is provided with the 6th gear 504 of the 5th gear 301 on the right output axle shaft 3 of engagement, described worm gear 502 is assemblied in housing 1 by axostylus axostyle, and worm gear 502 is meshed with corresponding group of worm screw 501, described 4th gear 503 is assemblied on same axostylus axostyle with worm gear 502 with coaxial manner, 4th gear 503 of described right changeover part 5 is arranged on the axostylus axostyle of the worm gear 502 between two groups of worm screws 501, further ensure that the stability of transmission, more reasonable structure,
Above-mentioned 4th gear 503 is meshed with the first gear 403 of above-mentioned left changeover part 2, realizes neutralization during two wheel friction speed situations, counteracting.
An above-mentioned left side, the left changeover part 4 that right two cavitys are corresponding, in right changeover part 5, one-tenth is symmetrically arranged each other, this left output axle shaft 2, right output axle shaft 3 and left changeover part 4, the worm screw 401 of right changeover part 5 correspondence wherein, worm screw 501, corresponding worm gear 402, worm gear 502 and the 3rd gear 404 and the 6th gear 504 are all supported by bearing support 6, ensure that each axle can rotate along each axostylus axostyle is axially normal, this left output axle shaft 2, the axis of right output axle shaft 3 respectively with this corresponding worm screw 401, the axis being parallel of worm screw 501, corresponding and this first gear 403 respectively, the axes normal of the 4th gear 503, wherein, left changeover part 4, worm gear 402 corresponding in right changeover part 5, worm gear 502 and corresponding worm screw 401, the axis of worm screw 501 can be orthogonal, also can out of plumb, this does not affect for this difference device.
The transmission that worm gear 402 and worm screw 401, worm gear 502 and worm screw 501 coordinate, add that differential mechanism inside is symmetrically arranged each other with the 3rd gear 404, the 6th gear 504 engagement place, make left output axle shaft 2, right output axle shaft 3 mutual noninterference, when housing 1 is motionless, left output axle shaft 2, right output axle shaft 3 still can relative movement, and under normal circumstances, the angular wheel 7 on housing 1 outer wall receives power input source, vehicle starts to travel
When the traveling of vehicle is normal straight-ahead operation, left and rightly takes turns, rotational velocity stressed with housing 1 and keep balanced synchronization, housing 1 and left output axle shaft 2, right output axle shaft 3 and housing 1 internal structure all rotate with identical speed, do not produce differential motion;
When the traveling of vehicle is turning driving, the trend that nearside wheel (connecting side output axle shaft) has relative housing 1 to slow down, spin down, outboard wheel (connecting opposite side output axle shaft) has the trend relative to housing 1 speedup, faster rotational speed, the speed discrepancy that inner side, outboard wheels produce is passed to neutralization on the first gear 403, the 4th gear 503 by differential mechanism inside, is offset, and realizes the difference of both sides vehicle wheel rotational speed, can not exist and turn to phenomenon that is dry and astringent, vibration;
When vehicle travels, to run into special road conditions (such as rugged, muddy grade is easily skidded road conditions) time, if one of them wheel runs out of steam (as: wheel-slip or unsettled etc.), because wheel loses the effect of outer friction power, worm screw 401 in differential mechanism and worm gear 402, worm screw 501 and worm gear 503 realize automatic locking, ensure that whole driving force can not be wasted on the wheel of skidding by differential mechanism, more there will not be and drive power cannot act on effective wheel (wheel do not run out of steam), the wheel of driving force can not be slowed down by differential casing 1 relatively, and the wheel losing earth-grasping force also can not dally.
embodiment 2
Other structure of the present embodiment is identical with embodiment 1, and difference is: the enclosure interior of this invention does not divide left and right two cavitys, but the housing be made up of a cavity, by left and right two changeover parts in it.
embodiment 3
Other structure of the present embodiment and embodiment 2, embodiment 3 are identical, difference is: in the left and right changeover part of this invention, left changeover part is one group of worm screw and a worm gear, right changeover part is the unsymmetrical arrangement of two groups of worm screws and two worm gear compositions, wherein, often organizing worm and gear is one, specifically determines according to actual conditions.
embodiment 4
Other structure of the present embodiment and embodiment 2, embodiment 3 are identical, difference is: in the left and right changeover part of this invention, left changeover part is two groups of worm screws and two worm gears, right changeover part is the unsymmetrical arrangement of one group of worm screw and a worm gear composition, wherein, often organizing worm and gear is one, specifically determines according to actual conditions.
The concrete technological scheme of each embodiment is only in order to illustrate the present invention above, is not intended to limit.
Claims (6)
1. a limited slip differential, comprise housing (1), left output axle shaft (2) and right output axle shaft (3), described left output axle shaft (2), right output axle shaft (3) are assemblied in the left and right two ends of housing (1), it is characterized in that: the left changeover part (4) and the right changeover part (5) that are equipped with corresponding engagement in described housing (1), described left changeover part (4) is primarily of at least one group of worm screw (401), worm gear (402) and the first gear (403) composition, described worm screw (401) is provided with the 3rd gear (404) of engagement left output axle shaft (2) upper second gear (201), described worm gear (402) to be assemblied in housing (1) by axostylus axostyle and worm gear (402) is meshed with corresponding group of worm screw (401), and described first gear (403) and worm gear (402) are assemblied on same axostylus axostyle with coaxial manner, described right changeover part (5) is primarily of at least one group of worm screw (501), worm gear (502) and the 4th gear (503) composition, described worm screw (501) is provided with the 6th gear (504) of engagement right output axle shaft (3) upper 5th gear (301), described worm gear (502) is assemblied in housing (1) by axostylus axostyle, and worm gear (502) is meshed with corresponding group of worm screw (501), described 4th gear (503) and worm gear (502) are assemblied on same axostylus axostyle with coaxial manner, described 4th gear (503) is meshed with first gear (403) of left changeover part (2).
2. limited slip differential according to claim 1, is characterized in that: the worm screw (401) of described left changeover part (4) is two groups, often organizes two worm screws (401).
3. limited slip differential according to claim 2, is characterized in that: first gear (403) of described left changeover part (4) is arranged on the axostylus axostyle of the worm gear (402) between two groups of worm screws (401).
4. limited slip differential according to claim 1, is characterized in that: the worm screw (501) of described right changeover part (5) is two groups, often organizes two worm screws (501).
5. limited slip differential according to claim 4, is characterized in that: the 4th gear (503) of described right changeover part (5) is arranged on the axostylus axostyle of the worm gear (502) between two groups of worm screws (501).
6. limited slip differential according to claim 1, it is characterized in that: described housing (1) inside has at least two relatively independent cavitys, left side cavity is for assembling left changeover part (4), right side cavity for assembling right changeover part (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410802189.6A CN104482164B (en) | 2014-12-23 | 2014-12-23 | Limited slip differential |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410802189.6A CN104482164B (en) | 2014-12-23 | 2014-12-23 | Limited slip differential |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104482164A true CN104482164A (en) | 2015-04-01 |
| CN104482164B CN104482164B (en) | 2017-02-22 |
Family
ID=52756742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410802189.6A Active CN104482164B (en) | 2014-12-23 | 2014-12-23 | Limited slip differential |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104482164B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2754868A1 (en) * | 1996-10-21 | 1998-04-24 | Heghe Roger Gustave Frederic V | Motor vehicle drive differential |
| CN101900194A (en) * | 2010-08-27 | 2010-12-01 | 魏家斌 | Differential |
| CN201944224U (en) * | 2011-01-20 | 2011-08-24 | 史凯 | Antiskid differential of automobile |
| CN203670672U (en) * | 2013-10-22 | 2014-06-25 | 马佳准 | Differential mechanism |
| CN204344861U (en) * | 2014-12-23 | 2015-05-20 | 吴秋民 | Limited slip differential |
-
2014
- 2014-12-23 CN CN201410802189.6A patent/CN104482164B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2754868A1 (en) * | 1996-10-21 | 1998-04-24 | Heghe Roger Gustave Frederic V | Motor vehicle drive differential |
| CN101900194A (en) * | 2010-08-27 | 2010-12-01 | 魏家斌 | Differential |
| CN201944224U (en) * | 2011-01-20 | 2011-08-24 | 史凯 | Antiskid differential of automobile |
| CN203670672U (en) * | 2013-10-22 | 2014-06-25 | 马佳准 | Differential mechanism |
| CN204344861U (en) * | 2014-12-23 | 2015-05-20 | 吴秋民 | Limited slip differential |
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| Publication number | Publication date |
|---|---|
| CN104482164B (en) | 2017-02-22 |
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Effective date of registration: 20180726 Address after: 618000 office building, 703 Jinsha Jiangxi Road, Deyang, Sichuan Patentee after: Mechanical industry first Construction Company Limited of China Address before: 618000 China Construction, 703 Jinsha Jiangxi Road, Jingyang District, Deyang, Sichuan Patentee before: Wu Qiumin |
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| TR01 | Transfer of patent right |