CN101881322A - Series-connection type small tooth number difference speed-change mechanism - Google Patents
Series-connection type small tooth number difference speed-change mechanism Download PDFInfo
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- CN101881322A CN101881322A CN2009100506582A CN200910050658A CN101881322A CN 101881322 A CN101881322 A CN 101881322A CN 2009100506582 A CN2009100506582 A CN 2009100506582A CN 200910050658 A CN200910050658 A CN 200910050658A CN 101881322 A CN101881322 A CN 101881322A
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Abstract
The invention relates to a series-connection type small tooth number difference speed-change mechanism capable of stably carrying out step speed change (power shift) during full-load or no-load running and simultaneously completing the clutch of speed reduction with high speed ratio and power. The series-connection type small tooth number difference speed-change mechanism comprises multiple rows of gear pairs with small tooth number difference and different gear ratios, an eccentric shaft, a few of balance sheets and inner gear brakes of the gear pairs. The invention has the advantages of simple structure, convenient manufacture, high speed ratio, efficiency, carrying capacity and low cost and is suitable for occasions needing frequent power clutch and the step speed change with stable high speed ratio.
Description
Technical field
The present invention relates to a kind of series-connection type small tooth number difference speed-change mechanism, is a kind ofly can not interrupt power, on-stream step change reposefully (power gear shifting), and can finish simultaneously that large speed ratio slows down and the gear of the clutch of power.The different gear with small teeth difference of a plurality of gear ratios on the same eccentric shaft sends to the compositor by being serially connected in, the internal gear break of several balancing patch and each gear pair is formed.
Background technique
Existing planet speed change mechanism all is the structural type that adopts 2K-H negative sign planetary mechanism, and each planet row is made up of sun gear, several planet wheel, planet carrier and internal gear, and complex structure, number of gears are many.
Its shortcoming is:
1, complete machine structure complexity, manufacture difficulty height, cost height.
2, in step change, can not realize that large speed ratio slows down, can only realize less reduction speed ratio.
Summary of the invention:
The objective of the invention is to design and a kind ofly can not interrupt the on-stream step change reposefully of power (power shfit), can finish simultaneously again that large speed ratio slows down and the clutch of power, and, simple in structure, be easy to make, small tooth number difference speed-change mechanism that cost is low.
Task of the present invention is achieved through the following technical solutions:
By the gear with small teeth difference that many rows gear ratio is different pay, the internal gear break of an eccentric shaft, several balancing patch and each gear pair forms a series-connection type small tooth number difference speed-change mechanism.
Each arranges that gear with small teeth difference pays is that coaxial line is arranged, every row forms by an internal gear and with a planetary pinion of its engagement, and each arranges the gear ratio difference of gear pair.
One eccentric shaft is arranged, and shared for each row's gear pair, each planetary pinion all is serially connected on the eccentric shaft by bearing, can rotate relative to eccentric shaft, and several balancing patches are housed on the eccentric shaft, connects firmly with eccentric shaft, and the two ends of eccentric shaft are bearing on the frame by bearing.
On each planetary side, all be processed with the tooth inserted tooth, after the assembling, the tooth inserted tooth all engages, and can guarantee that each planetary pinion is all with identical rotational speed.
Each internal gear all is bearing on the frame by bearing, can rotate relative to frame, on each internal gear, is equipped with break as required, and with the rotation of control internal gear or fixing, each internal gear all can be used as output, and the needs during by design are selected for use.
Power is imported from eccentric shaft during work.Selected some rows' internal gear is drawn power as output, simultaneously as required, brakes another row's internal gear, make it to maintain static, and other each rows' internal gear break all unclamps.Then gear is just by the row who is braked and as the row who exports, and these two few tooth difference rows' synthetic speed ratios are exported, and other each internal gears of arranging all dally, and are irrelevant with output.
As select the different few tooth difference row's of other gear ratios internal gear to brake, can obtain both new synthetic speed ratio output of this row who is newly chosen and output row.
Be braked then gear complete machine braking, stall as output inner gear.
All unclamp then gear idle running as the break on output inner gear and other each rows' the internal gear.
Outside the output inner gear other are respectively arranged the some processes that is braked in the internal gear, are exactly the process that gear power is connected, the process that the process of unclamping is separated, disconnected with regard to power.
When needing velocity transformation, the internal gear break that this rotating speed that control is being turned round is relevant, unclamp gradually, simultaneously, control back one and want the relevant internal gear break of the rotating speed that enters, braking is stopped tight gradually, both cooperate suitably, can steadily transform to a back rotating speed from this rotating speed that is turning round, do not interrupt power during speed change, realize power shfit.
Advantage of the present invention is:
1, number of gears is few, structure is simplified significantly, volume is little, be easy to manufacturing, cost is low.
2, in realizing the unbroken running of power, in the clutch of steady speed change and power, can realize that large speed ratio slows down, compare that speed ratio can be greatly several times to tens times with the planet speed change mechanism of existing 2K-H negative sign planetary mechanism form.
The invention will be further described below in conjunction with embodiment.
Accompanying drawing 1 is the structure diagram of one 4 fast type small tooth number difference speed-change mechanism.
Accompanying drawing 2 is structure diagrams of one 3 fast type small tooth number difference speed-change mechanism.
Accompanying drawing 3 is structure diagrams of a two-speed type small tooth number difference speed-change mechanism.
The main member implication of each numbering is as follows in the accompanying drawing:
1-tooth inserted tooth 2-tooth inserted tooth 3-tooth inserted tooth 4-tooth inserted tooth
5-balancing patch 6-break 7-internal gear 8-planetary pinion
9-break 10-internal gear 11-planetary pinion 12-break
13-internal gear 14-planetary pinion 15-break 16-internal gear
17-planetary pinion 18-break 19-internal gear 20-planetary pinion
21-balancing patch 22-eccentric shaft
Embodiment 1:
Shown in Figure 1 is the structure diagram of one 4 fast type series-connection type small tooth number difference speed-change mechanism, and being sent to the compositor to be connected in series by 5 gear with small teeth difference forms, and eccentric shaft 22 is in internal gear 13 outputs of respectively arranging the neutral position from the right axle head input.The outer garden of internal gear 13 is processed with external tooth on week, with the gear engagement in the external world, outputting power.
On each planetary side, all be processed with the tooth inserted tooth, after each planetary pinion assembled vertically, the tooth inserted tooth all engaged, and (shown in the tooth inserted tooth 1,2,3,4 after engaging among Fig. 1) can guarantee that each planetary pinion is all with identical rotational speed.
Each internal gear all is bearing on the frame by bearing, can rotate relative to frame.Be equipped with break 18 on the internal gear 19, the rotation of may command internal gear 18 or fixing similarly, is furnished with break 15 on the internal gear 16, be furnished with break 12 on the internal gear 13, is furnished with break 9 on the internal gear 10, is furnished with break 6 on the internal gear 7.
During work, as braking internal gear 19, other 4 breaks all unclamp, and then just with gear pair 13,14 these two synthetic speed ratio outputs of arranging gear pairs of gear pair 19,20 and output row, other each rows' internal gear all dallies gear, has nothing to do with output.
As selecting internal gear 16,10,7 brakings respectively, other internal gears unclamp simultaneously, and then gear is respectively with gear pair 16,17 and 13,14; Gear pair 10,11 and 13,14; Gear pair 7,8 and 13,14 synthetic speed ratio output.
Like this, can obtain 4 kinds of different speed ratio outputs.
As output inner gear 13 brakings, then gear complete machine braking, stall.
All unclamp then gear idle running as the break on each row's gear pair.
Some processes that is braked in the internal gear 19,16,10,7 are exactly the process that power is connected, and the process of unclamping is exactly the process that power separates, disconnects.
When needing velocity transformation, unclamp the relevant internal gear break of this rotating speed that is turning round gradually, simultaneously, braking is stopped tight back one and is wanted the relevant internal gear break of rotating speed that enters gradually, cooperate suitably, can steadily transform to a back rotating speed from this rotating speed that is turning round, not interrupt power, realize power shfit.
Embodiment 2:
Fig. 2 is the structure diagram of one 3 fast type small tooth number difference speed-change mechanism, and being sent to the compositor to be connected in series by 4 gear with small teeth difference forms.Power is in the spindle nose output of the internal gear 7 of leftward position from the right axle head input of eccentric shaft 22.
This embodiment's constituted mode and working principle are identical with embodiment 1, and difference is that gear with small teeth difference sends to the compositor and lacked one, so output speed also lacked one grade, totally 3 grades, in addition, have selected to be in the spindle nose output of the internal gear 7 of leftward position.
Embodiment 3:
Fig. 3 is the structure diagram of one 2 fast type small tooth number difference speed-change mechanism, and being sent to the compositor to be connected in series by 3 gear with small teeth difference forms, and gear with small teeth difference sends to the compositor and lacked one as different from Example 2, and therefore, output speed has also lacked one grade, totally 2 grades.
Claims (1)
1. series-connection type small tooth number difference speed-change mechanism, can step change reposefully (power shfit) in fully loaded or no-load running, and can finish simultaneously that large speed ratio slows down and the clutch of power, by the gear with small teeth difference that many rows gear ratio is different pay, the internal gear break of an eccentric shaft, several balancing patch and each gear pair forms.
It is characterized in that:
(1) the many rows gear with small teeth difference with coaxial line serial connection is paid, and every row forms the gear ratio difference of every row's gear pair by an internal gear and with a planetary pinion of its engagement;
(2) have an eccentric shaft, shared for each row's gear pair, each planetary pinion all is contained on the eccentric shaft by bearing housing, can rotate relative to eccentric shaft, and several balancing patches are housed on the eccentric shaft, connects firmly with eccentric shaft, and the two ends of eccentric shaft are bearing on the frame by bearing;
(3) on each planetary side, all be processed with the tooth inserted tooth, after the assembling, the tooth inserted tooth all engages, and can guarantee that each planetary pinion is all with identical rotational speed;
(4) each internal gear all is bearing on the frame by bearing, can rotate relative to frame, on each internal gear, is equipped with break as required, with the rotation of control internal gear or fixing.Each internal gear all can be used as output, and the needs during by design are selected for use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100506582A CN101881322A (en) | 2009-05-06 | 2009-05-06 | Series-connection type small tooth number difference speed-change mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100506582A CN101881322A (en) | 2009-05-06 | 2009-05-06 | Series-connection type small tooth number difference speed-change mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN101881322A true CN101881322A (en) | 2010-11-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100506582A Pending CN101881322A (en) | 2009-05-06 | 2009-05-06 | Series-connection type small tooth number difference speed-change mechanism |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108488335A (en) * | 2018-07-04 | 2018-09-04 | 郑州大学 | A kind of speed changer based on small teeth number difference planet gear |
| CN109185402A (en) * | 2018-09-28 | 2019-01-11 | 江苏荣圣汽车零部件有限公司 | One shaft type two-stage multi gear planetary transmission |
-
2009
- 2009-05-06 CN CN2009100506582A patent/CN101881322A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108488335A (en) * | 2018-07-04 | 2018-09-04 | 郑州大学 | A kind of speed changer based on small teeth number difference planet gear |
| CN108488335B (en) * | 2018-07-04 | 2020-01-31 | 郑州大学 | speed variator based on small tooth difference planetary gear |
| CN109185402A (en) * | 2018-09-28 | 2019-01-11 | 江苏荣圣汽车零部件有限公司 | One shaft type two-stage multi gear planetary transmission |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20101110 |