CN201810740U - Planet shaft difference-adjustment differential mechanism - Google Patents
Planet shaft difference-adjustment differential mechanism Download PDFInfo
- Publication number
- CN201810740U CN201810740U CN2010205342604U CN201020534260U CN201810740U CN 201810740 U CN201810740 U CN 201810740U CN 2010205342604 U CN2010205342604 U CN 2010205342604U CN 201020534260 U CN201020534260 U CN 201020534260U CN 201810740 U CN201810740 U CN 201810740U
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- left half
- gear
- difference
- half axle
- shaft
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- Expired - Fee Related
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Abstract
The utility model relates to a planet shaft difference-adjustment differential mechanism which is characterized in that two degrees of output freedom of the differential mechanism are input to two interlocked planet gear sets through a planet gear frame so as to control the two planet gear sets to adjust the rotating speed difference of the two degrees of output freedom. A constant speed driving shaft and a worm (1) are used for directly driving a constant speed driving worm wheel (2), and the constant speed driving worm wheel (2) and a differential mechanism gear frame (3) are integrated into a whole; and a differential mechanism planet gear (4), a right-half shaft bevel gear (5) and a left-half bevel gear (6) are installed in the differential mechanism frame (3) to form the difference mechanism. The difference-adjustment differential mechanism designed skillfully can control the speed difference of two rotating wheels effectively, and can realize completely constant-speed and accurately controllable rotating speed difference and further realize stable linear movement and accurate turning.
Description
Technical field
The utility model belongs to vehicle and uses the differential art field, relate in particular to a kind of planet axis 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, then realize stably straight line motion and turn to accurately, be applied to the driving of wheelchair class runner especially.
Background technique
The two-wheel of present similar wheelchair one class drives the double sports equipment that turns to, generally adopt double dynamical two runners that drive respectively, realize seesawing and turning to by 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, snakelike advancing often occur and turn to radius of turn is unsettled, the motion control of wheelchair kind equipment is relatively poor.
Summary of the invention
The purpose of this utility model is the deficiency at above-mentioned existence, design a kind of planet axis 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.Realize that the technological scheme that the purpose of this utility model is taked is: two output degrees of freedom of differential mechanism are input to two groups of planetary gear set that lock mutually by planetary carrier, then realize that by controlling two planetary gear set regulating two exports speed discrepancy freely, utilize constant velocity driving shaft and worm screw directly to drive constant speed and drive worm gear, constant speed driving worm gear and differential gear frame are as a whole; Differential pinion gear, right axle shaft umbrella gear and left half axle umbrella gear are installed in and form differential mechanism in the differential gear frame; The planetary gear carrier that left half axle umbrella gear and left half axle first driving gear and left half axle carry is coaxial, and left half axle first driving gear is meshed and transmitted to left half axle by left half axle second driving gear, left half axle transmission shaft, left half axle the 3rd driving gear and left half axle the 4th driving gear; The planetary gear carrier coaxial line that right axle shaft umbrella gear and right axle shaft carry forms right axle shaft: left half axle transfers difference planet wheel and right axle shaft to transfer the difference planet wheel to transfer external toothing in the difference, right axle shaft to transfer in the difference and mesh in the external toothing with left half axle respectively; Left half axle accent difference planet wheel and right axle shaft transfer poor planet wheel to mesh with shared sun wheel respectively: the poor interior external toothing of external toothing and right axle shaft accent drives worm screw and constant speed counter-rotating driving worm drive by differential respectively in the left half axle accent difference.
The utility model can effectively be controlled the speed difference of two runners by the accent difference differential mechanism of ingenious design, can realize complete constant speed and accurate controlled speed discrepancy, realizes stably straight line motion then and turns to accurately.
Description of drawings
Accompanying drawing is a theory structure schematic representation of the present utility model.
Among the figure, 1, constant velocity driving shaft and worm screw, 2, constant speed drives worm gear, 3, the differential gear frame, 4, differential pinion gear, 5, the right axle shaft umbrella gear, 6, the left half axle umbrella gear, 7, right axle shaft, 8, left half axle first driving gear, 9, left half axle second driving gear, 10, the left half axle transmission shaft, 11, left half axle the 3rd driving gear, 12, left half axle the 4th driving gear, 13, left half axle, 14, axle bearing, 15, casing, 16, the planetary gear carrier that left half axle carries, 17, the planetary gear carrier that right axle shaft carries, 18, left half axle is transferred the difference planet wheel, 19, right axle shaft is transferred the difference planet wheel, 20, shared sun wheel, 21, left half axle is transferred external toothing in the difference, 22, right axle shaft is transferred external toothing in the difference, 23, differential drives worm screw, 24, the constant speed counter-rotating drives worm screw.
Embodiment
With reference to accompanying drawing, of the present utility modelly be characterised in that it is that two output degrees of freedom with differential mechanism are input to two groups of planetary gear set that lock mutually by planetary carrier that this planet axis is transferred difference differential mechanism, then realize that by controlling two planetary gear set regulating two exports speed discrepancy freely, utilize constant velocity driving shaft and worm screw 1 directly to drive constant speed and drive worm gear 2, constant speed driving worm gear 2 and differential gear frame 3 are as a whole; Differential pinion gear 4, right axle shaft umbrella gear 5 and left half axle umbrella gear 6 are installed in and form differential mechanism in the differential gear frame 3; The planetary gear carrier 16 that left half axle umbrella gear 6 and the left half axle first biography driving gear 8 and left half axle carry is coaxial, and left half axle first driving gear 8 is meshed and transmitted to left half axle 13 by left half axle second driving gear 9, left half axle transmission shaft 10, left half axle the 3rd driving cog 11 and left half axle the 4th driving gear 12; Planetary gear carrier 17 coaxial lines that right axle shaft umbrella gear 5 and right axle shaft carry form right axle shaft 7; Left half axle transfers difference planet wheel 18 and right axle shaft to transfer difference planet wheel 19 to transfer external toothing 21 in the difference, right axle shaft to transfer engagement in the external toothing 22 in the difference with left half axle respectively; Left half axle transfers difference planet wheel 18 and right axle shaft to transfer difference planet wheel 19 to mesh with shared sun wheel 20 respectively; The poor interior external toothing 22 of external toothing 21 and right axle shaft accent drives worm screw 23 and 24 drivings of constant speed counter-rotating driving worm screw by differential respectively in the left half axle accent difference.
Working principle of the present utility model is as follows:
Transfer the difference differential mechanism to drive constant speed and drive worm gear 2 by constant velocity driving shaft and worm screw 1, drive differential gear frame 3 and differential pinion gear 4, right axle shaft umbrella gear 5 and left half axle umbrella gear 6, the constant speed rotation is outputed to left half axle 13 and right axle shaft 7 respectively, and wherein the rotation of left half axle 13 need be passed through left half axle first driving gear 8, left half axle second driving gear 9, left half axle transmission shaft 10, left half axle the 3rd driving gear 11 and left half axle the 4th driving gear 12 and be transferred to left half axle 13.The planetary gear carrier 16 that left half axle carries in the transmittance process, the planetary gear carrier 17 that right axle shaft carries transfer difference planet wheel 18 and right axle shaft to transfer difference planet wheel 19 in center and 26 engagements of shared sun wheel by left half axle respectively, transfer external toothing 21 in the difference, right axle shaft to transfer external toothing 22 engagements in the difference in periphery and left half axle; Left half axle transfers external toothing 21 in the difference, right axle shaft to transfer external toothing 22 in the difference to be subjected to differential to drive the locking that worm screw 23 and constant speed counter-rotating drive worm screw 24, can only be static or wait oppositely speed rotation.Promptly drive worm screw 24 when static when differential drives worm screw 23 and constant speed counter-rotating, left half axle 13 and right axle shaft 7 are subjected to the restriction of two groups of synchronous planetary gear set, can not produce speed discrepancy, can only constant speed rotate.When differential drives worm screw 23 and constant speed counter-rotating and drives the counter-rotating of worm screw 24 constant speed with two groups of planetary gear set of constant speed reverse direction actuation, then with equal and opposite in direction, the rotation of switched in opposite has been added on left half axle 13 and the right axle shaft 7, has realized that the controlled left and right half differential of rotating speed difference rotates.When constant velocity driving shaft and worm screw 1 are static, the return motion that left half axle 13 and right axle shaft 7 will be exported constant speed.Constant speed and differential drive in this differential mechanism have independence, and two kinds of driving moments and rotating speed all can not influence each other and disturb.
Work characteristics and the scope of application:
Drive to rotate by transferring poor differential mechanism constant speed to decompose constant speed, constant speed has oppositely been decomposed differential and is driven and rotate simultaneously, and constant speed and differential gearing in the differential mechanism have independence and additivity, and two kinds of driving moments and rotating speed all can not influence each other and disturb. Realized that accurately controlled constant speed is rotated distribution and differential rotates distribution. Replenish open differential and freely decomposed output driving rotation, can not decompose the characteristics of given rotating speed difference. Be applicable to that constant speed drives the mechanism that at any time adjusts speed discrepancy or phase difference simultaneously. Avoided independent two driving power equivalently not work and the unmanageable problem of difference.
Claims (1)
1. a planet axis is transferred the difference differential mechanism, two output degrees of freedom that it is characterized in that differential mechanism are input to two groups of planetary gear set that lock mutually by planetary carrier, then realize that by controlling two planetary gear set regulating two exports speed discrepancy freely, utilize constant velocity driving shaft and worm screw (1) directly to drive constant speed and drive worm gear (2), constant speed driving worm gear (2) and differential gear frame (3) are as a whole; Differential pinion gear (4), right axle shaft umbrella gear (5) and left half axle umbrella gear (6) are installed in and form differential mechanism in the differential gear frame (3); The planetary gear carrier (16) that left half axle umbrella gear (6) and left half axle first driving gear (8) and left half axle carry is coaxial, and left half axle first driving gear (8) is meshed and transmitted to left half axle (13) by left half axle second driving gear (9), left half axle transmission shaft (10), left half axle the 3rd driving cog (11) and left half axle the 4th driving gear (12); Planetary gear carrier (17) coaxial line that right axle shaft umbrella gear (5) and right axle shaft carry forms right axle shaft (7); Left half axle transfers difference planet wheel (18) and right axle shaft to transfer difference planet wheel (19) to transfer external toothing (21) in the difference, right axle shaft to transfer engagement in the external toothing (22) in the difference with left half axle respectively; Left half axle transfers difference planet wheel (18) and right axle shaft to transfer difference planet wheel (19) to mesh with shared sun wheel (20) respectively; The poor interior external toothing (22) of external toothing (21) and right axle shaft accent drives worm screw (23) and constant speed counter-rotating driving worm screw (24) driving by differential respectively in the left half axle accent difference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205342604U CN201810740U (en) | 2010-09-19 | 2010-09-19 | Planet shaft difference-adjustment differential mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205342604U CN201810740U (en) | 2010-09-19 | 2010-09-19 | Planet shaft difference-adjustment differential mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201810740U true CN201810740U (en) | 2011-04-27 |
Family
ID=43893682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205342604U Expired - Fee Related CN201810740U (en) | 2010-09-19 | 2010-09-19 | Planet shaft difference-adjustment differential mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201810740U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101949440A (en) * | 2010-09-19 | 2011-01-19 | 张维国 | Planetary shaft difference adjusting differential mechanism |
-
2010
- 2010-09-19 CN CN2010205342604U patent/CN201810740U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101949440A (en) * | 2010-09-19 | 2011-01-19 | 张维国 | Planetary shaft difference adjusting differential mechanism |
| CN101949440B (en) * | 2010-09-19 | 2013-01-23 | 张维国 | Planetary shaft difference adjusting differential mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110427 Termination date: 20130919 |