CN202926991U - Sliding gear type differential mechanism - Google Patents
Sliding gear type differential mechanism Download PDFInfo
- Publication number
- CN202926991U CN202926991U CN 201220632421 CN201220632421U CN202926991U CN 202926991 U CN202926991 U CN 202926991U CN 201220632421 CN201220632421 CN 201220632421 CN 201220632421 U CN201220632421 U CN 201220632421U CN 202926991 U CN202926991 U CN 202926991U
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- China
- Prior art keywords
- sliding gear
- roller
- turning rolls
- shaft
- pto
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Abstract
The utility model discloses a sliding gear type differential mechanism, which comprises a sliding gear, rollers, roller shafts, roller carriers, a spring, a roller shaft hoop, a supporting shaft and a power output shaft, wherein the supporting shaft is positioned and supported through a circular hole in the inner end of the power output shaft; the sliding gear is arranged on the supporting shaft; the rollers are arranged on the roller carriers through the roller shafts to form roller transmission components; the roller transmission components are symmetrically arranged relative to the sliding gear; bosses are uniformly distributed along the circumferential direction of the two ends of the sliding gear; the rollers are arranged at positions which are half of grooves of the bosses; when the resistance moments of two ends of the power output shaft are the same, the sliding gear is positioned in the middle of the two roller carriers, and the power output shaft rotate in the same direction at an equal speed; and when the resistance moments of the two ends of the power output shaft are different, the sliding gear moves towards one end with small moment, the driving rotating speed of the end with small moment is increased and the rotating speed of the end with large moment is decreased; and when the resistance moments of two ends differ to a certain extent, the power of the end of large moment is interrupted, and power transfer of the end of small moment is kept, so that differential speed is realized.
Description
Technical field
The utility model belongs to farm machinery speed changer differential mechanism, is specifically related to the wheeled differential mechanism of a kind of slide teeth.
Background technique
The distance that during automobile running, left and right wheels rolls across in does not at one time wait usually, if the left and right wheels of ransaxle is rigidly connected, inevitably can produce driving wheel slippage or trackslip on the road surface when travelling, not only can aggravate the consumption of tire wear and power and fuel, and may cause turning to operating characteristics and worsen, institute thinks and prevents that these phenomenons from occuring, and all is equipped with inter-wheel differential between vehicle right and left wheel.But travel when automobile cross-country run or on muddy, ice and snow road, when the coefficient of attachment on one side drive wheel and ground was very little, although there is good adhering on opposite side wheel and ground, its driving torque also reduced thereupon, can't bring into play potential tractive force, so that make the automobile stagnation of movement.In order to guarantee automobile running, offroad vehicle adopts differential lock and limited slip differential usually, and the common more complicated of these structures is not suitable for farm machinery and does the differential use.
In the farm machinery drive system, differential mechanism is not installed usually, so more difficult when turning to, for the narrow ditching machine of wheelspan, garden supervisor etc., utilizing manpower to reverse by force machinery when turning to makes the left and right wheels of machinery occur relative sliding on ground and substantially can realize turning to, but for the relatively wide transplanter of wheelspan, transplanter etc., reverse machinery by manpower and substantially can not turn to.So usually adopt castellated steering clutch in drive system, by separating the jaw clutch of this side, cut off the transmission of power of this side, and the power of an other side is not cut off and continues to travel when turning to, realized that large wheelspan farm machinery turns to.Can satisfy above-mentioned requirements although jaw clutch turns to, this mechanism operation is complicated, and steering flexibility is poor, and clutch gear has impact.
The model utility content
The utility model is for existing jaw clutch steering equipment complicated operation, steering flexibility is poor, clutch gear has impact, the non-limited-slip differential of using on automobile can not satisfy transferring power requirement after the farm machinery differential, limited-slip differential is complex structure again, expensive, being not suitable for farm machinery adopts, provide a kind of slide teeth wheeled differential mechanism, this differential mechanism can guarantee to have at least a pto＝power take-off in motion in differential, thus transmission of drive force square reliably, this mechanism structure is simple, need not independent operation, easy to use, practical.
the utility model adopts following technological scheme to realize: the wheeled differential mechanism of a kind of slide teeth, comprise pto＝power take-off, turning rolls, end cap, bearing, casing, back shaft, spring, sliding sleeve and with the sliding gear of the power input gear of power input shaft engagement, described sliding gear empty set is at the middle part of back shaft, described sliding gear can moving axially along described back shaft, the both sides of described back shaft are fixed with respectively described turning rolls, the two ends of described back shaft are arranged in the endoporus of described pto＝power take-off by described sliding sleeve, described pto＝power take-off is positioned on described end cap by bearing, described end cap is fixed on casing, one end of described pto＝power take-off is the outputting power end, the other end is connected with described turning rolls, the bi-side of described sliding gear are symmetrically arranged with around the equally distributed a plurality of boss in described sliding gear axle center, the roller body assembly corresponding with boss on described sliding gear is installed on described turning rolls, described sliding gear drives described turning rolls rotation by described roller body assembly, described back shaft is set with spring between described turning rolls and sliding gear, when the resisting moment of described roller body assembly at described pto＝power take-off two ends changes, push the boss on described sliding gear, make described sliding gear slide to the little direction of torsion.
Described roller body assembly comprises roller shaft, roller and roller shaft clip, described roller is arranged on turning rolls by roller shaft, described roller shaft clip is installed on outside roller shaft, and described roller can be around described roller shaft rotation, and described roller is arranged on the boss working surface of described sliding gear.
Described pto＝power take-off is provided with the oil guiding hole that can lubricate sliding sleeve in described sliding sleeve position.
Oil sealing is arranged on the outer end of described end cap upper bearing (metal).
Described pto＝power take-off is connected by spline with described turning rolls.
Described roller body assembly is evenly arranged six places at described turning rolls circumferencial direction.
Described sliding gear is provided with the spring seat of depression, and described spring fitting is in described spring seat.
owing to adopting said structure, the utility model is applied on slow-moving vehicle and farm machinery power, adopt the boss on roller body assembly and sliding gear to coordinate, because the rotating speed of sliding gear is not high, therefore utilize the roller extruding boss on the roller body assembly, when pto＝power take-off two ends resisting moment is identical, sliding gear is positioned at the centre of two turning rollss, pto＝power take-off is constant speed rotation in the same way, when pto＝power take-off two ends power-assisted square not simultaneously, sliding gear moves to the little end of moment, little moment end drives faster rotational speed, the disconnected rotating speed of high-torque reduces, when two ends power-assisted square differs to a certain degree, high-torque end power interruption, little moment end keeps transmission of power, realize differential, make like this steering equipment simple to operate, turn to flexibly, the transmission of drive force square is reliable, need not independent operation, easy to use, practical.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the utility model pto＝power take-off scheme of installation;
Fig. 3 is assembly schematic diagram of the present utility model;
Fig. 4 is the structural representation of sliding gear convex platform;
Fig. 5 is the power transmission schematic diagram of turning rolls and boss;
Fig. 6 is structure explosive view on the left of the utility model;
The position view of sliding gear when Fig. 7 is the utility model straight-line travelling;
Position signal and the force analysis figure of sliding gear when Fig. 8 (a) turns left to travel for the utility model;
Sliding gear further position signal and force analysis figure when Fig. 8 (b) turns left to travel for the utility model;
Position signal and the force analysis figure of sliding gear when Fig. 9 (a) travels for the utility model right-hand rotation;
Sliding gear further position signal and force analysis figure when Fig. 9 (b) travels for the utility model right-hand rotation.
Embodiment
Below in conjunction with accompanying drawing, further describe the embodiment of this patent.
Referring to Fig. 1, the wheeled differential mechanism of a kind of slide teeth comprises pto＝power take-off 1, turning rolls 2, roller shaft clip 3, roller shaft 4, roller 5, back shaft 6, bolt 7, end cap 8, oil sealing 9, bearing 10, casing 11, power input shaft 12, power input gear 13, sliding gear 14, spring 15, sliding sleeve 16;
Referring to Fig. 1 and Fig. 2, described end cap 8 is fixed on casing 11 by bolt 7, and pto＝power take-off 1 is positioned on end cap 8 by bearing 10, and oil sealing 9 is arranged on the outer end of end cap 8; Be designed with step a-3 and a-6 on pto＝power take-off 1, its width equates with step a-4 and a-5 on end cap 8,10 1, bearing is arranged on step a-3 and step a-4, another is arranged on step a-5 and step a-6 place, this structure axle 1 that can output power is fixed on certain position in the axial direction, and is free to rotate at circumferencial direction; Described pto＝power take-off 1 is designed with the internal spline a-1 of turning rolls 2 external splines engagements with for processing the tool withdrawal groove a-2 of internal spline a-1; Described pto＝power take-off 1 is designed with oil guiding hole a-7, its lubricated effect that is arranged on the sliding sleeve 16 on supported hole a-8; Described pto＝power take-off 1 is positioned on end cap 8 by bearing 10, can not move in the axial direction, and pto＝power take-off 1 one ends are done outputting power, and the other end is connected by the external splines of internal spline with turning rolls 2, does the power input; Oil sealing 9 is arranged on the outer end of end cap 8, the lubricant oil in the sealing speed changer;
Referring to Fig. 1,2,3,5, described back shaft 6 two ends are arranged on the supported hole a-8 of pto＝power take-off 1 by sliding sleeve 16, sliding gear 14 is arranged on back shaft 6, spring 15 is arranged between the spring seat b-4 and turning rolls 2 of sliding gear 14, its fixing spring circumferential position of spring seat b-4 and prevent the effect that spring is beated in work; Described back shaft 6 is by pto＝power take-off 1 location at two ends, back shaft 6 can not move in axial and radial direction, but can freely rotate at circumferencial direction, sliding gear 14 is arranged on back shaft 6, when not needing differential, under the effect of two ends spring 15, sliding gear 14 is positioned at two turning rolls 2 center positions, and sliding gear 14 can move the arbitrary position between two turning rollss 2 when differential; Described roller 5 is arranged on turning rolls 2 by roller shaft 4, roller 5 and roller shaft 4 form the roller body assembly, be evenly arranged 6 places at turning rolls 2 circumferencial directions, roller shaft clip 3 is stuck in turning rolls 2 and roller shaft 4 center positions, prevents roller shaft 4 landing from turning rolls 2 under the effect of gravity or rotary centrifugal force; Described turning rolls 2 one ends are by pto＝power take-off 1 location, and the other end is compressed by spring 15, can not move axially; Be pressed in half position of the boss b-3 of sliding gear 14 during described roller 5 transferring power, boss b-3 provides rotating power to turning rolls 2; Be designed with on described turning rolls 2 with the external splines b-1 of pto＝power take-off 1 internal spline engagement with for processing the tool withdrawal groove b-2 of external splines b-1;
Referring to Fig. 1 to Fig. 6; Described boss b-3 is comprised of interior table top c-1, forward gears working surface c-2, boss end face c-3, reverse gear working surface c-4, boss bottom surface c-5 and outer table top c-6.Advancing at machinery, roller 5 compresses the boss end face c-3 of forward gears working surface c-2 to half position of boss bottom surface c-5 when travelling differential not, because the resisting moment of left and right sides driving wheel is identical, under the effect of two ends spring 15, sliding gear 14 is positioned at two turning rolls 2 center positions; Advance when travelling differential at machinery, turn to interior side wheel 5 to move to boss end face c-3 and continue from the boss end face c-3 of forward gears working surface c-2 to boss bottom surface c-5 half position and slide into boss bottom surface c-5 along reverse gear working surface c-4, interior side drive wheel rotating speed slightly descends or skidding, turn to outer side wheel 5 to move forward to boss bottom surface c-3 from the boss end face c-3 of forward gears working surface c-2 to boss bottom surface c-5 half position, outer side drive wheel rotating speed occurs and slightly rises and this side power of sustained delivery, and the differential that machinery is completed the gear that advances drives and turns to; Identical with above-mentioned principle during with differential when should rolling-back of car travelling not differential, the transmission of power face is transferred to reverse gear working surface c-4 by forward gears working surface c-2.
Referring to Fig. 1 to Fig. 9, advance take mechanical differential and introduce in detail the working procedure of the wheeled differential mechanism of slide teeth as example.If the distance on axial centre line-spacing roller 5 borders of sliding gear 14 is L.Sliding gear 14 is positioned at the position, bosom by the spring 15 at two ends when initial the installation, this moment, the border of roller 5 was x/2 apart from boss bottom surface c-5, when the non-differential of straight line travels, under the effect of the axial thrust load of forward gears working surface c-2 and spring force, remain at above-mentioned position at roller 5.When left steering, theoretical according to motor turning, turn to the interior distance of passing by of taking turns shorter than foreign steamer.When left steering, moment of torsion as little in the driver reverses machinery, is equivalent at moment of torsion M of sliding gear 14 central role
1Due to moment of torsion M
1The effect left side roller 5-a axial thrust load that acts on forward gears working surface c-2 act on the axial thrust load of forward gears working surface c-2 greater than right side roller 5-b, establishing this component is F
1, work as F
1Component less than the right side spring at the x/2 covert Hooke power F in position
2The time, at F
1The effect lower slider gear 14 beginning position t less than x/2 that slides to the left, make simultaneously a left side roller 5-a mobile segment distance b backward, right side roller 5-b moves forward one section same distance b, thereby the path length difference of passing by of two-wheeled occurred, has realized turning to by a small margin differential; When driver's high pulling torque reverses machinery, moment of torsion M
1Increase component F
1Increase.As component F
1Greater than the right side spring at the x/2 covert Hooke power F in position
2The time, sliding gear 14 slides into the right side limit position, makes simultaneously left side roller 5-a move backward distance b
1Also continue to move to the forward gears working surface c-2 of next boss downwards to boss end face c-3, left side roller 5-a moves backward, and the left side driving force is skidded in this position, until component F
1Less than the right side spring at the x/2 covert Hooke power F in position
2The time, stopping skidding, right side roller 5-b has moved forward distance b simultaneously
2, right side roller 5-b continues to keep straight-line travelling, and the path length difference of passing by of both sides motive power wheel strengthens, and has realized significantly turning to differential or spot turn, F
2Be the coupling mechanism force of this differential mechanism.In like manner can realize turning right to.
Claims (7)
1. wheeled differential mechanism of slide teeth, comprise pto＝power take-off (1), turning rolls (2), end cap (8), bearing (10), casing (11), back shaft (6), spring (15), sliding sleeve (16) and with the sliding gear (14) of the power input gear (13) of power input shaft (12) engagement, it is characterized in that: described sliding gear (14) empty set is at the middle part of back shaft (6), described sliding gear (14) can in axial direction move on described back shaft (6), the both sides of described back shaft (6) are separately installed with described turning rolls (2), the two ends of described back shaft (6) are arranged in the endoporus of described pto＝power take-off (1) by described sliding sleeve (16), described pto＝power take-off (1) is positioned on described end cap (8) by bearing (10), described end cap (8) is fixed on casing (11), one end of described pto＝power take-off (1) is the outputting power end, the other end is connected with described turning rolls (2), the bi-side of described sliding gear (14) are symmetrically arranged with around the equally distributed a plurality of boss in described sliding gear (14) axle center, the roller body assembly corresponding with boss on described sliding gear (14) is installed on described turning rolls (2), described sliding gear (14) drives described turning rolls (2) rotation by described roller body assembly, described back shaft (6) is set with spring (15) between described turning rolls (2) and sliding gear (14), when the resisting moment of described roller body assembly at described pto＝power take-off (1) two ends changes, push the boss on described sliding gear (14), make described sliding gear (14) slide to the little direction of torsion.
2. the wheeled differential mechanism of slide teeth according to claim 1, it is characterized in that: described roller body assembly comprises roller shaft (4), roller (5) and roller shaft clip (3), described roller (5) is arranged on turning rolls (2) by roller shaft (4), described roller shaft clip (3) is installed on outside roller shaft (4), described roller (5) can be around described roller shaft (4) rotation, and described roller (5) is arranged on the boss working surface of described sliding gear (14).
3. the wheeled differential mechanism of slide teeth according to claim 2 is characterized in that: described pto＝power take-off (1) is provided with the oil guiding hole that can lubricate sliding sleeve (16) in described sliding sleeve (16) position.
4. the wheeled differential mechanism of slide teeth according to claim 2, it is characterized in that: oil sealing (9) is arranged on the outer end of described end cap (8) upper bearing (metal).
5. the wheeled differential mechanism of slide teeth according to claim 2, it is characterized in that: described pto＝power take-off (1) is connected by spline with described turning rolls (2).
6. the wheeled differential mechanism of slide teeth according to claim 2, it is characterized in that: described roller body assembly is evenly arranged six places at described turning rolls (2) circumferencial direction.
7. the wheeled differential mechanism of slide teeth according to claim 1, it is characterized in that: described sliding gear (14) is provided with the spring seat of depression, and described spring (15) is arranged in described spring seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220632421 CN202926991U (en) | 2012-11-26 | 2012-11-26 | Sliding gear type differential mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220632421 CN202926991U (en) | 2012-11-26 | 2012-11-26 | Sliding gear type differential mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202926991U true CN202926991U (en) | 2013-05-08 |
Family
ID=48216953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220632421 Withdrawn - After Issue CN202926991U (en) | 2012-11-26 | 2012-11-26 | Sliding gear type differential mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202926991U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102943860A (en) * | 2012-11-26 | 2013-02-27 | 湖南农业大学 | Sliding gear type differential device |
-
2012
- 2012-11-26 CN CN 201220632421 patent/CN202926991U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102943860A (en) * | 2012-11-26 | 2013-02-27 | 湖南农业大学 | Sliding gear type differential device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130508 Effective date of abandoning: 20150722 |
|
| RGAV | Abandon patent right to avoid regrant |