CN201944224U - Antiskid differential of automobile - Google Patents
Antiskid differential of automobile Download PDFInfo
- Publication number
- CN201944224U CN201944224U CN2011200183926U CN201120018392U CN201944224U CN 201944224 U CN201944224 U CN 201944224U CN 2011200183926 U CN2011200183926 U CN 2011200183926U CN 201120018392 U CN201120018392 U CN 201120018392U CN 201944224 U CN201944224 U CN 201944224U
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- differential
- gear transmission
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Abstract
The utility model relates to an antiskid differential of an automobile. The antiskid differential comprises a pair of planetary gear transmission pairs and a housing of the planetary gear transmission pair, wherein the pair of planetary gear transmission pairs consists of sun gears and a plurality of planetary gears; the two planetary gear transmission pairs are arranged at the left side and the right side in the housing in parallel, and the sun gears of the two planetary gear transmission pairs are respectively connected with two half shafts of an automobile driving wheel; the planetary gears extend out of a section of worm, planetary gear worms respectively belonging to the left planetary gear transmission pair and the right planetary gear transmission pair are alternately staggered and arranged on the same circumference in an opposite way, a worm gear is arranged between two neighboring worms and together meshed with the two worms, the worm gears are together driven to rotate by the two neighboring worms and are free bodies which can synchronously revolve around the sun along with the planetary gears. Each planetary gear transmission pair comprises three planetary gears which are uniformly arranged on the circumference. Three worm gears are uniformly arranged on the circumference. After used, the antiskid differential has no antiskid response time and obvious antiskid effect; and the antiskid differential has the advantages of compact structure, convenient processing and low cost, and is suitable for serving as a differential between steering drive axle gears.
Description
Technical field
The utility model relates to a kind of differential mechanism, relates in particular to a kind of vehicle skidproof differential mechanism that promotes automobile passability, Security, belongs to automobile-used differential art field.
Background technique
According to the Vehicular turn ride characteristic, each automobile all will be equipped with differential mechanism, and the structural type of the differential mechanism that uses has multiple, modal is common symmetric type cone planetary gear differential mechanism, its mainly by differential casing, a pair ofly be symmetricly set in the differential casing sun gear (differential gear) that axially links to each other, a pair of subtend and be installed in planetary pinion between the sun gear of the left and right sides perpendicular to sun gear with two semiaxis of automobile driving wheel.Its effect is to regulate vehicle turning to when travelling the speed discrepancy that wheel produced that links to each other with left and right sides semiaxis, vehicle is turned to smoothly travel.But its deficiency is: when a side wheel skids or dallies, because of the reason on its differential design makes non-slip opposite side wheel can not get the power that enough powered vehicle are travelled, and the wheel of the side of skidding consumes driving force in vain, cause vehicle to get rid of poverty and move ahead, influence the passing ability of vehicle.
At present, for improving the passing capacity of automobile on bad road, the multiple differential mechanism that can prevent wheel-slip or idle running has appearred on the market.As: torque sensing formula limited-slip differential is representative with the Torsen differential mechanism again, and it is that three pair planetary pinions, six roots of sensation planet pin and the differential casing of straight-tooth form for the differential gear of worm screw, intermediate section for the worm gear two ends by two.Each partly is meshing with each other to the straight-tooth with two ends between the planetary pinion, and the mode that the worm gear of intermediate section part is spent with alternating axis 90 is the differential gear engagement of worm screw with two respectively, the three pairs of planetary pinions are evenly arranged in around the differential gear with same engagement system, and this differential mechanism can be realized anti-slip function.The deficiency that exists is: its induction be the friction torque of worm and gear reversing drive, anti-slip effect is bad, and only when the two-semiaxle speed discrepancy is little, could realize differential, and therefore be not suitable for the inter-wheel differential of steering drive axle, slide in limit and do that driving force transfers to the end semiaxis that trackslips earlier in the process, be passed to the zero slip end again via the worm and gear self-locking, do not accomplish not have the response time, do not have basic solving to trackslip, and complex structure is not compact from ground, volume is big, and manufacture cost is also high.
Summary of the invention
The purpose of this utility model is intended to overcome deficiency of the prior art, and a kind of do not have response time, on-slip degree height, compact structure, vehicle skidproof differential mechanism with low cost are provided.
The technical solution of the utility model is:
A kind of vehicle skidproof differential mechanism, comprise a pair of by sun gear, planetary pinion transmission and shell thereof that a plurality of planet wheels are formed, two planetary pinion transmissions are a left side in the enclosure, the right side is arranged in juxtaposition, the sun gear of two planetary pinion transmissions connects two semiaxis of automobile driving wheel respectively, described planet wheel extends one section worm screw, adhere to a left side separately, the planet wheel worm screw of right lateral star gear driving pair in opposite directions, alternate interlaced arrangement on same circumference, between adjacent two worm screws, worm gear is arranged, cooperate jointly with two worm screws, drive the worm gear rotation jointly by adjacent two worm screws, this worm gear is a free body, can revolve round the sun around sun gear synchronously with planet wheel.
Planet wheel in described each planetary pinion transmission is three, is circumferentially evenly to arrange.
Described worm gear is three, is circumferentially evenly to arrange.
There is housing end plug at the two ends of described shell, are bolted on the shell by one group.
Compared with prior art, the beneficial effects of the utility model are:
1. because worm screw and planet wheel are designed to overall structure, worm gear is a free body, and worm gear revolves round the sun around sun gear synchronously with planet wheel, all in differential casing, turn round in separately the cavity, do not have structures such as support, bearing, realized non-maintainingly, and compact structure, volume are little; 2. when automobile one side drive wheel adhesion reduces (skid or dally), after losing the additional force that can force the differential mechanism differential, power will be transferred to the driving wheel that opposite side has good adhesion before the generation of skidding, and can shift 100% power at most, accomplished the no response time, so anti-slip effect significantly improves; 3. not high to required precision, be convenient to processing and assembling, manufacture cost is also low, and can be suitable for and make the steering drive axle inter-wheel differential.
Description of drawings
Fig. 1 is the utility model example structure decomposing schematic representation;
Fig. 2 is the utility model embodiment planetary pinion transmission and worm gear mesh schematic representation;
Fig. 3 is the utility model embodiment's an axial sectional view;
Fig. 4 is the A-A sectional view of Fig. 3 among the utility model embodiment;
Fig. 5 is the B-B sectional view of Fig. 4 among the utility model embodiment.
Code name is represented among the figure: 1-sun gear, 2-planet wheel, 3-worm gear, 4-shell, 5-housing end plug, 6-semiaxis, 7-bolt.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
Referring to Fig. 1 to Fig. 5: this vehicle skidproof differential mechanism, comprise a pair of by sun gear 1, three planetary pinion transmission and shells 4 thereof that are planet wheel 2 compositions of circumferentially evenly arranging, two planetary pinion transmissions are a left side in shell 4, the right side is arranged in juxtaposition, the sun gear 1 of two planetary pinion transmissions connects two semiaxis 6 of left and right vehicle wheel side drive wheel respectively, described planet wheel 2 extends one section worm screw, adhere to a left side separately, the planet wheel worm screw of right lateral star gear driving pair in opposite directions, alternate interlaced arrangement on same circumference, between adjacent two worm screws, worm gear 3 is arranged, cooperate jointly with two worm screws, drive worm gear 3 rotations jointly by adjacent two worm screws, this worm gear 3 is free bodies, can be with planet wheel 2 synchronously around sun gear 1 revolution.Described worm gear 3 is three, is circumferentially evenly to arrange.There is housing end plug 5 at the two ends of described shell 4, are fixed on the housing 4 by one group of bolt 7.
When motor turning, because outboard wheel has sliding trend of dragging, nearside wheel has the trend of trackslipping, and two side drive wheel will produce the opposite additional force of both direction this moment, and are reflected on the connected sun gear (differential gear) by the left and right sides semiaxis of automobile driving wheel, force planetary pinion to produce rotation, make outside semiaxis faster rotational speed, inboard semiaxis rotating speed slows down, and causes the rotating speed difference of two sidecar wheels, destroy three's equilibrium relation, thereby realized the difference of both sides vehicle wheel rotational speed.
The working procedure of the utility model differential mechanism: when motor turning, the distance of two processes that side drive wheel is travelled is not isometric, this moment is because traction can feed back to the opposite additional force of differential mechanism both direction, thereby force the planetary pinion rotation in the differential mechanism, automobile differential begins differential thus.The utility model makes full use of this differential principle, when two semiaxis 6 of automobile two side drive wheel feed back to the opposite additional force of sun gear (differential gear) 1 both direction, will force by a pair of by sun gear 1, three planet wheel 2 rotations that are in the planetary pinion transmission that the planet wheel 2 circumferentially evenly arranged forms, and planet wheel 2 extended one section worm screw, adhere to a left side separately, the planet wheel worm screw of right lateral star gear driving pair in opposite directions, alternate interlaced arrangement on same circumference, between adjacent two worm screws, worm gear 3 is arranged, with face two worm screws mutually and mesh jointly, rotated by the common worm gear 3 that drives that transmits two rightabout power of two adjacent worm screws, differential mechanism is begun differential.
When automobile has a mid-wheel drive wheel to skid or dally, just do not have and feed back to the opposite additional force of differential mechanism both direction by traction, power just is passed on the sun gear 1 of the side of not skidding by differential mechanism shell 4, institute's connection wheel is because of vehicle driving resistance and least energy consumption principle on the sun gear 1 of this side (good adhesion one side is arranged), sun gear 1 just has the trend of not rotating with shell 4, the rotation of differential mechanism shell 4 will be held planet wheel 2 rotations with forcing not skid, thereby extended worm screw drives worm gear 3 rotations again on the planet wheel 2, and the rotation of worm gear 3 drives skidding star-wheel 2 rotations of skidding again.And from said structure, respectively with worm screw part and worm gear 3 engagements, by the worm and gear self-lock mechanism, planet wheel 2 can drive worm gear 3 and rotate to planet wheel 2 for each, and worm gear 3 can not drive planet wheel 2 rotations.So driving skidding star gear 2 rotations of skidding, worm gear 3 rotations just are false, worm gear 3 and planet wheel 2 just all can not rotation, power is just got back on the sun gear 1 of the side of not skidding again, driving wheel gets rid of poverty vehicle, and power is not passed to the idle end semiaxis, and when the idle running beginning, just obtain restriction, accomplished not lose power and no response time.
After the idle end semiaxis has recovered good adhesion, have the opposite additional force of both direction after, can drive left and right sides planet wheel 2 and force worm gear 3 rotations, this differential mechanism just can begin differential again, meets differential principle in the vehicle driving fully.
Claims (3)
1. vehicle skidproof differential mechanism, comprise a pair of by sun gear, planetary pinion transmission and shell thereof that a plurality of planet wheels are formed, two planetary pinion transmissions are a left side in the enclosure, the right side is arranged in juxtaposition, the sun gear of two planetary pinion transmissions connects two semiaxis of automobile driving wheel respectively, it is characterized in that: described planet wheel extends one section worm screw, adhere to a left side separately, the planet wheel worm screw of right lateral star gear driving pair in opposite directions, alternate interlaced arrangement on same circumference, between adjacent two worm screws, worm gear is arranged, cooperate jointly with two worm screws, drive the worm gear rotation jointly by adjacent two worm screws, this worm gear is a free body, can revolve round the sun around sun gear synchronously with planet wheel.
2. vehicle skidproof differential mechanism according to claim 1 is characterized in that: the planet wheel in described each planetary pinion transmission is three, is circumferentially evenly to arrange.
3. vehicle skidproof differential mechanism according to claim 1 is characterized in that: described worm gear is three, is circumferentially evenly to arrange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200183926U CN201944224U (en) | 2011-01-20 | 2011-01-20 | Antiskid differential of automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200183926U CN201944224U (en) | 2011-01-20 | 2011-01-20 | Antiskid differential of automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201944224U true CN201944224U (en) | 2011-08-24 |
Family
ID=44471567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200183926U Expired - Fee Related CN201944224U (en) | 2011-01-20 | 2011-01-20 | Antiskid differential of automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201944224U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104482164A (en) * | 2014-12-23 | 2015-04-01 | 吴秋民 | Limited slip differential |
| CN104859438A (en) * | 2015-03-25 | 2015-08-26 | 魏家斌 | Locking worm and gear drive axle with universal joint |
| CN106763637A (en) * | 2016-12-21 | 2017-05-31 | 贵州大学 | The real-time limited-slip differential of double rotational directions screw rod and the vehicle with the differential mechanism |
| CN106801736A (en) * | 2017-04-02 | 2017-06-06 | 凌子龙 | A kind of differential mechanism |
| CN106838202A (en) * | 2017-04-02 | 2017-06-13 | 凌子龙 | A kind of limited-slip differential |
| CN108240449A (en) * | 2016-12-27 | 2018-07-03 | 比亚迪股份有限公司 | Differential mechanism and vehicle |
| WO2018148857A1 (en) * | 2017-02-15 | 2018-08-23 | 范淼冰 | Adaptive locking differential |
| CN108458083A (en) * | 2018-02-07 | 2018-08-28 | 营山县臻安机电科技研究所 | Active assisted diversion formula differential gear |
| CN112178152A (en) * | 2020-10-16 | 2021-01-05 | 魏家斌 | Bevel gear differential mechanism |
-
2011
- 2011-01-20 CN CN2011200183926U patent/CN201944224U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104482164A (en) * | 2014-12-23 | 2015-04-01 | 吴秋民 | Limited slip differential |
| CN104482164B (en) * | 2014-12-23 | 2017-02-22 | 吴秋民 | Limited slip differential |
| CN104859438A (en) * | 2015-03-25 | 2015-08-26 | 魏家斌 | Locking worm and gear drive axle with universal joint |
| CN106763637A (en) * | 2016-12-21 | 2017-05-31 | 贵州大学 | The real-time limited-slip differential of double rotational directions screw rod and the vehicle with the differential mechanism |
| CN108240449A (en) * | 2016-12-27 | 2018-07-03 | 比亚迪股份有限公司 | Differential mechanism and vehicle |
| CN108240449B (en) * | 2016-12-27 | 2019-12-20 | 比亚迪股份有限公司 | Differential and vehicle |
| WO2018148857A1 (en) * | 2017-02-15 | 2018-08-23 | 范淼冰 | Adaptive locking differential |
| CN106838202A (en) * | 2017-04-02 | 2017-06-13 | 凌子龙 | A kind of limited-slip differential |
| CN106801736A (en) * | 2017-04-02 | 2017-06-06 | 凌子龙 | A kind of differential mechanism |
| CN106801736B (en) * | 2017-04-02 | 2023-01-10 | 凌子龙 | Differential mechanism |
| CN108458083A (en) * | 2018-02-07 | 2018-08-28 | 营山县臻安机电科技研究所 | Active assisted diversion formula differential gear |
| CN112178152A (en) * | 2020-10-16 | 2021-01-05 | 魏家斌 | Bevel gear differential mechanism |
| CN112178152B (en) * | 2020-10-16 | 2023-02-21 | 魏家斌 | Bevel gear differential mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Antiskid differential of automobile Effective date of registration: 20150108 Granted publication date: 20110824 Pledgee: Youxian District of Mianyang City, the rural credit cooperatives of Changxin branch Pledgor: Shi Kai Registration number: 2015510000002 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110824 Termination date: 20180120 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |