CN102720820A - Difference-adjusting differential for wheelchair - Google Patents
Difference-adjusting differential for wheelchair Download PDFInfo
- Publication number
- CN102720820A CN102720820A CN201110077688XA CN201110077688A CN102720820A CN 102720820 A CN102720820 A CN 102720820A CN 201110077688X A CN201110077688X A CN 201110077688XA CN 201110077688 A CN201110077688 A CN 201110077688A CN 102720820 A CN102720820 A CN 102720820A
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- gear
- differential
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- worm
- sun
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Abstract
The invention relates to a difference-adjusting differential for a wheelchair The differential is characterized in that two planetary gear sets sharing a sun gear are disposed coordinate with a same axis. A left planetary gear set is composed of a sun driving gear (2), left planetary gears (3), a left gear ring (5), a left half shaft (12), and a left planetary-gear support (7). A right planetary gear set is composed of the sun driving gear (2), right planetary gears (4), a right gear ring (6), a right half shaft (13), and a right planetary-gear support (8). The two gear sets share the sun driving gear (2). Through a differential-drive bevel gear (9), the differential-drive bevel gear (9) and a worm gear (14) simultaneously engage with the left gear ring (5) and the right gear ring (6) of the two planetary gear sets. A differential-drive worm (15) engages with the differential-drive bevel gear (9) and the worm gear (14), and the differential-drive bevel gear (9) and the worm gear (14) are driven by the differential-drive worm (15) and a differential power-input shaft (10) of the differential-drive worm (15). A uniform-speed drive gear (16) engages with the sun driving gear, and the sun driving gear (2) is driven by the uniform-speed drive gear (16) and a uniform-sppeed power-input shaft (11) of the uniform-speed drive gear (16). All the components are disposed inside a differential housing (1) through bearings.
Description
Technical field
The invention belongs to vehicle and use the differential art field, relate in particular to the wheelchair accent difference differential mechanism that a kind of wheelchair differential is advanced and turned to.
Background technique
The double equipment that turns to of the differential motion that present similar wheelchair is a type generally adopts double dynamical two runners that drive respectively, realizes seesawing and turning to through the rotating speed of controlling two runners; But be based on the open loop control characteristic of hybrid power system, two runners can not realize well that constant speed rotates or accurately turn to, and snakelike advancing often occur and turn to radius of turn is unsettled; Equipment moving controlled relatively poor; The present invention can effectively control the speed difference of two runners through the accent difference differential mechanism of ingenious design, can realize complete constant speed and accurate controlled speed discrepancy; Then realize stably straight line motion and turn to accurately, obviously improve the handling of this kind equipment.
Summary of the invention
The objective of the invention is deficiency to above-mentioned differential mechanism existence; Design a kind of wheelchair and transfer the difference differential mechanism; Can effectively control the speed difference of two runners; Can realize complete constant speed and accurate controlled speed discrepancy, realize stably straight line motion then and turn to accurately, obviously improve the handling of this type of vehicle.Realize that the technological scheme that the present invention taked is: it is to be arranged by the planetary gear set of two shared sun gears coaxial line arranged side by side that this wheelchair is transferred the characteristic of difference differential mechanism; Form left row star gear train by sun actuation gear, left side planetary pinion, left side gear ring, left half axle and left lateral star-wheel support; Left half axle and left lateral star-wheel support constitute one; Form the right side planetary gear set by sun actuation gear, right side planetary pinion, right side gear ring, right axle shaft and right lateral star-wheel support; Right axle shaft and right lateral star-wheel support constitute one, two shared sun actuation gears of gear train; Left side gear ring, right side gear ring have the side angular wheel respectively; Differential drives umbrella gear and worm gear and meshes simultaneously through umbrella gear and left side gear ring, right side gear ring in two planetary gear set, and differential drives umbrella gear and worm gear drives worm screw and the driving of differential-speed dynamic input shaft thereof by the differential with its engagement; Sun actuation gear is driven by wait speed drive gear and the constant speed power input shaft thereof with its engagement.Differential drives umbrella gear and worm gear constitutes one, and differential drives worm screw and the differential-speed dynamic input shaft constitutes one, waits speed drive gear and constant speed power input shaft thereof to constitute one.All parts all through Bearing Installation in the differential mechanism enclosure.
The present invention can effectively control the speed difference of two runners, can realize complete constant speed and accurate controlled speed discrepancy, realizes stably straight line motion then and turns to accurately, can be applied to the driving of wheelchair class runner or be used as differential lock.
Description of drawings
Fig. 1 is the profile of structural representation of the present invention;
Fig. 2 is the cross section of structural representation of the present invention.
Among the figure, 1, the differential mechanism shell, 2, sun actuation gear, 3, the left side planetary pinion, 4, the right side planetary pinion; 5. left side gear ring, 6, the right side gear ring, 7, left lateral star-wheel support, 8, right lateral star-wheel support; 9, differential drives umbrella gear, and 10, the differential-speed dynamic input shaft, 11, the constant speed power input shaft, 12, left half axle; 13, right axle shaft, 14, worm gear, 15, differential drives worm screw, 16, etc. speed drive gear.
Embodiment:
With reference to accompanying drawing; It is to be arranged by the planetary gear set of two shared sun gears coaxial line arranged side by side that this wheelchair is transferred the characteristic of difference differential mechanism; Form the left side planetary gear set by sun actuation gear 2, left side planetary pinion 3, left side gear ring 5, left half axle 12 and left lateral star-wheel support 7; Left half axle 12 and left lateral star-wheel support 7 constitute one; Form the right side planetary gear set by sun actuation gear 2, right side planetary pinion 4, right side gear ring 6, right axle shaft 13 and right lateral star-wheel support 8, right axle shaft 13 and right lateral star-wheel support 8 constitute one, two shared sun actuation gears 2 of gear train; Left side gear ring 5, right side gear ring 6 have the side angular wheel respectively; Differential drives umbrella gear 9 and worm gear 14 and drives umbrella gear 9 through differential and mesh simultaneously with left side gear ring 5, right side gear ring 6 in two planetary gear set, differential drive umbrella gear 9 and worm gear 14 by with the differential driving worm screw 15 and 10 drivings of differential-speed dynamic input shaft thereof of its engagement; Sun actuation gear 2 is driven by wait speed drive gear 16 and the constant speed power input shaft 11 thereof with its engagement.Differential drives umbrella gear 9 and worm gear 14 constitutes one, and differential drives worm screw 15 and differential-speed dynamic input shaft 10 constitutes one, waits speed drive gear 16 and constant speed power input shaft 11 thereof to constitute one.All parts all through Bearing Installation in differential mechanism shell 1 inside.
Working principle of the present invention is following:
By sun actuation gear 2 input craspedodrome power and rotations, thereby under the static situation of gear ring, drive planetary pinion and the support constant speed is rotated in the same way; Drive umbrella gear by worm and gear and drive two gear rings simultaneously, let gear ring obtain the constant speed return motion, thereby under the static situation of sun gear, drive planetary pinion and support constant speed backward rotation thereof.When sun gear and gear ring rotate simultaneously, can obtain the to keep straight on stack of motion and turning motion of planetary set and support thereof.When waiting speed drive gear 16 and constant speed power input shaft 11 thereof to rotate; Sun actuation gear 2 can be driven in rotation; Thereby driving left side planetary pinion 3 rotates with right side planetary pinion 4; This moment, left half axle 12 and planetary carrier 7 can constant speed rotate with right axle shaft 13 and planetary carrier 8 in the same way; If not waiting, left half axle 12 and planetary carrier 7 and right axle shaft 13 and planetary carrier 8 rotating speeds will certainly not cause the left side gear ring 5 that is engaged with and the variable speed rotation of right side gear ring 6; Then cause differential to drive umbrella gear 9 and worm gear 14 rotations,, cause left half axle 12 and planetary carrier 7 and right axle shaft 13 and planetary carrier 8 constant speed to rotate in the same way because differential driving umbrella gear 9 and worm gear 14 receive differential to drive the self-locking action of worm screw 15 and differential-speed dynamic input shaft 10 thereof and can not rotate; Promptly realize the motion of keeping straight on, it is infinitely great that turning diameter equals.When differential drives worm screw 15 and 10 rotations of differential-speed dynamic input shaft thereof; Differential drives umbrella gear 9 and worm gear 14 can be driven and rotate; Then drive with the left side gear ring 5 of its both sides engagement and make the constant speed backward rotation with right side gear ring 6; Keep under the static situation in kept straight on drive system control of sun actuation gear 2, left side planetary pinion 3 is made the constant speed backward rotation with right side planetary pinion 4, and left half axle 12 and planetary carrier 7 can be made the constant speed backward rotation simultaneously with right axle shaft 13 and planetary carrier 8; This moment, equipment can be realized the pivot turn campaign, and turning diameter equals zero.When driving worm screw 15 and differential-speed dynamic input shaft 10 thereof at sun actuation gear 2 and differential and all rotate; Left side planetary pinion 3 and right side planetary pinion 4 can be done the stack that constant speed backward rotation and constant speed are rotated in the same way; Left half axle 12 and planetary carrier 7 can be done the stack that constant speed backward rotation and constant speed are rotated in the same way simultaneously with right axle shaft 13 and planetary carrier 8, realize that turning diameter is not equal to zero turning motion.When differential drove umbrella gear 9 and worm gear 14 drive parts and is function with the braking, this differential mechanism was the differential mechanism of a controlled band differential lock.
Claims (1)
1. a wheelchair is transferred the difference differential mechanism; It is characterized in that arranging by the planetary gear set of two shared sun gears coaxial line arranged side by side; Form the left side planetary gear set by sun actuation gear (2), left side planetary pinion (3), left side gear ring (5), left half axle (12) and left lateral star-wheel support (7); Left half axle (12) and left lateral star-wheel support (7) constitute one; Form the right side planetary gear set by sun actuation gear (2), right side planetary pinion (4), right side gear ring (6), right axle shaft (13) and right lateral star-wheel support (8); Right axle shaft (13) and right lateral star-wheel support (8) constitute one, two shared sun actuation gears of gear train (2); Left side gear ring (5), right side gear ring (6) have the side angular wheel respectively; Differential drives umbrella gear (9) and worm gear (14) and drives umbrella gear (9) through differential and mesh simultaneously with left side gear ring (5), right side gear ring (6) in two planetary gear set, and differential drives umbrella gear (9) and worm gear (14) drives worm screw (15) and differential-speed dynamic input shaft (10) driving thereof by the differential with its engagement; Sun actuation gear (2) is driven by wait speed drive gear (16) and the constant speed power input shaft (11) thereof with its engagement; Differential drives umbrella gear (9) and worm gear (14) constitutes one; Differential drives worm screw (15) and differential-speed dynamic input shaft (10) constitutes one; Constitute one Deng speed drive gear (16) and constant speed power input shaft (11) thereof, all parts all through Bearing Installation in differential mechanism shell (1) inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110077688XA CN102720820A (en) | 2011-03-30 | 2011-03-30 | Difference-adjusting differential for wheelchair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110077688XA CN102720820A (en) | 2011-03-30 | 2011-03-30 | Difference-adjusting differential for wheelchair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102720820A true CN102720820A (en) | 2012-10-10 |
Family
ID=46946656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110077688XA Pending CN102720820A (en) | 2011-03-30 | 2011-03-30 | Difference-adjusting differential for wheelchair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102720820A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106763636A (en) * | 2017-03-01 | 2017-05-31 | 周献生 | Differential mechanism |
| CN106838282A (en) * | 2016-12-26 | 2017-06-13 | 张玉国 | Planetary gear external member |
| CN106931132A (en) * | 2015-12-14 | 2017-07-07 | 丰田自动车株式会社 | Power transmission |
| CN107100981A (en) * | 2016-08-29 | 2017-08-29 | 雷仲升 | Energy on-slip is controlled by front-wheel steer angle and has the differential mechanism of gear reversing function |
| CN108042276A (en) * | 2017-11-30 | 2018-05-18 | 定远县中林机械技术有限公司 | One kind has multi-functional disabled people-aiding electric wheelchair |
| CN108852671A (en) * | 2018-04-24 | 2018-11-23 | 恩比尔(厦门)机械制造有限公司 | wheelchair fast steering device |
| CN110296195A (en) * | 2018-03-23 | 2019-10-01 | 纬创资通股份有限公司 | Mobile carrier and drive assembly |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004025005A1 (en) * | 2004-05-21 | 2005-09-29 | Audi Ag | Drive unit for vehicle, comprising lay shafts with two sets of toothed gears to be joined to outer gear and output shaft |
| EP1867515A1 (en) * | 2006-06-12 | 2007-12-19 | Deere & Company | Axle driving device having dual planetary reduction |
| DE102008022240A1 (en) * | 2008-05-06 | 2009-11-12 | Schaeffler Kg | Gearbox assembly, with a double clutch unit, has a spur gear differential gearing |
| US7618340B2 (en) * | 2006-08-30 | 2009-11-17 | Tai-Her Yang | Electric damp controlled three-end shaft differential transmission |
| CN101660597A (en) * | 2008-08-29 | 2010-03-03 | 李国铭 | Limited slip differential for cylindrical gear set |
| US20100205931A1 (en) * | 2007-10-04 | 2010-08-19 | Aircelle | Double-acting telescopic linear actuator with single-motor drive system |
| DE102009034509A1 (en) * | 2009-07-24 | 2011-01-27 | Bayerische Motoren Werke Aktiengesellschaft | Axle transmission i.e. direct motor driven clutchless axle transmission, for motor vehicle, has drive machines producing torque in preset operating conditions, where differential torque is produced between output shafts of transmission |
| CN201963836U (en) * | 2011-03-30 | 2011-09-07 | 张维国 | Wheel chair differential adjustment differential mechanism |
-
2011
- 2011-03-30 CN CN201110077688XA patent/CN102720820A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004025005A1 (en) * | 2004-05-21 | 2005-09-29 | Audi Ag | Drive unit for vehicle, comprising lay shafts with two sets of toothed gears to be joined to outer gear and output shaft |
| EP1867515A1 (en) * | 2006-06-12 | 2007-12-19 | Deere & Company | Axle driving device having dual planetary reduction |
| US7618340B2 (en) * | 2006-08-30 | 2009-11-17 | Tai-Her Yang | Electric damp controlled three-end shaft differential transmission |
| US20100205931A1 (en) * | 2007-10-04 | 2010-08-19 | Aircelle | Double-acting telescopic linear actuator with single-motor drive system |
| DE102008022240A1 (en) * | 2008-05-06 | 2009-11-12 | Schaeffler Kg | Gearbox assembly, with a double clutch unit, has a spur gear differential gearing |
| CN101660597A (en) * | 2008-08-29 | 2010-03-03 | 李国铭 | Limited slip differential for cylindrical gear set |
| DE102009034509A1 (en) * | 2009-07-24 | 2011-01-27 | Bayerische Motoren Werke Aktiengesellschaft | Axle transmission i.e. direct motor driven clutchless axle transmission, for motor vehicle, has drive machines producing torque in preset operating conditions, where differential torque is produced between output shafts of transmission |
| CN201963836U (en) * | 2011-03-30 | 2011-09-07 | 张维国 | Wheel chair differential adjustment differential mechanism |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106931132A (en) * | 2015-12-14 | 2017-07-07 | 丰田自动车株式会社 | Power transmission |
| CN107100981A (en) * | 2016-08-29 | 2017-08-29 | 雷仲升 | Energy on-slip is controlled by front-wheel steer angle and has the differential mechanism of gear reversing function |
| CN106838282A (en) * | 2016-12-26 | 2017-06-13 | 张玉国 | Planetary gear external member |
| CN106838282B (en) * | 2016-12-26 | 2019-01-29 | 张玉国 | Planetary gear external member |
| CN106763636A (en) * | 2017-03-01 | 2017-05-31 | 周献生 | Differential mechanism |
| CN108042276A (en) * | 2017-11-30 | 2018-05-18 | 定远县中林机械技术有限公司 | One kind has multi-functional disabled people-aiding electric wheelchair |
| CN110296195A (en) * | 2018-03-23 | 2019-10-01 | 纬创资通股份有限公司 | Mobile carrier and drive assembly |
| CN110296195B (en) * | 2018-03-23 | 2021-02-02 | 纬创资通股份有限公司 | Mobile carrier and transmission assembly |
| CN108852671A (en) * | 2018-04-24 | 2018-11-23 | 恩比尔(厦门)机械制造有限公司 | wheelchair fast steering device |
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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: 20121010 |