CN203686009U - Multistage speed-changing device - Google Patents
Multistage speed-changing device Download PDFInfo
- Publication number
- CN203686009U CN203686009U CN201320886235.6U CN201320886235U CN203686009U CN 203686009 U CN203686009 U CN 203686009U CN 201320886235 U CN201320886235 U CN 201320886235U CN 203686009 U CN203686009 U CN 203686009U
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- gear
- stepped gear
- driven
- input shaft
- power input
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Abstract
The utility model relates to the technical field of mechanical transmission, specifically a multistage speed-changing device. The device comprises a power input shaft, a central transmission body, and a power output shaft. The power input shaft is provided with a driving stepped gear. The power output shaft is provided with a driven stepped gear which is matched with the driving stepped gear. One driving gear of the driving stepped gear is correspondingly engaged to and rotates with one driven gear of the driven stepped gear through the transmission body. The central transmission body comprises a transmission shaft which can move axially. The transmission shaft is fixedly equipped with a transmission gear. The axis of the power input shaft, the axis of the transmission shaft and the axis of the power output shaft are parallel to each other. The device provided by the utility model is simple in structure, is stable in transmission, is lower in cost, and is convenient to control.
Description
Technical field
The utility model relates to mechanical transmissioning technology field, concrete is a kind of multi-change speed mechanism.
Background technique
at present, various gear shifts and device, the general gear that adopts moves along its axis, the engagement that realizes gear with separate, to realize the adjustment of different drive ratios, as all adopting the speed change gear of said structure, said apparatus, the gear shift device on the transportation machineries such as current boats and ships, vehicle there is complex structure, operation inconvenience, volume is large, cost is high defect.
Multi-change speed mechanism also can adopt planetary gear construction, planetary gear construction is to make planetary pinion in different engagements by actuator mostly, to obtain different velocity ratios, for the used planetary pinion that achieves the above object, its structure need be made up of multiple planet rows and numerous gearshift final controlling element, make the structure of gear become complicated, manufacture maintenance technology require high, the deficiencies in the prior art part that Here it is.
Model utility content
Technical problem to be solved in the utility model, is exactly for the existing deficiency of prior art, and a kind of multi-change speed mechanism of simple in structure, stable drive is provided.
This programme is achieved by the following technical measures: a kind of multi-change speed mechanism, it comprises power input shaft, intermediate transmission body and pto＝power take-off, on described power input shaft, be provided with initiatively stepped gear, on described pto＝power take-off, be provided with the driven stepped gear mating with active stepped gear, a driving gear in described active stepped gear is by intermediate transmission body and a driven gear engagement driving corresponding in driven stepped gear.
Above-mentioned intermediate transmission body comprises the transmission shaft that can move radially, and on described transmission shaft, is fixedly connected with driving gear, and the axis of described power input shaft, transmission shaft and pto＝power take-off is parallel.The two ends of described transmission shaft are connected with inside and are provided with the bearing support of bearing, and bearing support drives by hydraulic rod, cylinder or leading screw, thereby drive transmission shaft to move radially.
As preferably, technical characteristics of the present utility model also comprises: above-mentioned active stepped gear is stack gear train or integrated formed structure, and described driven stepped gear is stack gear train or integrated formed structure.The gear parameter of the different layers of described active stepped gear and driven stepped gear is identical, and just number of teeth difference, can normally engage with driving gear.
The gear parameter that the gear quantity of above-mentioned active stepped gear and driven stepped gear equates and position is corresponding is identical, and above-mentioned active stepped gear and driven stepped gear successively successively decrease from large end to small end radius, and decrement is identical.
The position relationship of above-mentioned active stepped gear and driven stepped gear can be two kinds of situations below:
(1) the active large end of stepped gear and the large end of driven stepped gear are positioned at the homonymy of driving gear.The axial motion opposite direction of active stepped gear and driven stepped gear while carrying out speed change.
(2) the active large end of stepped gear and the large end of driven stepped gear are positioned at the both sides of driving gear.While carrying out speed change, the axial motion direction of active stepped gear and driven stepped gear is identical.
Above-mentioned power input shaft coordinates mounting type to have following two kinds with active stepped gear:
(1) on above-mentioned power input shaft, be provided with feather key, described active stepped gear coordinates installation with power input shaft by feather key, fix by bearing at this mounting type medium power input shaft two ends, initiatively stepped gear is slippage stepped gear, is driven and can be made initiatively stepped gear slide on power input shaft along feather key by oil hydraulic cylinder, cylinder or leading screw.
(2) above-mentioned active stepped gear be fixedly connected on can axially movable power input shaft on, this mounting type medium power input shaft under drive unit along moving axially, drive initiatively stepped gear to move axially, power input shaft two ends are connected with inside and are provided with the bearing support of bearing, and oil hydraulic cylinder, cylinder or leading screw live axle bearing can make power input shaft move axially and drive initiatively stepped gear to move axially.
The same with the mode that initiatively stepped gear cooperation is installed with power input shaft, the mounting type of above-mentioned pto＝power take-off and driven stepped gear also has following two kinds:
(1) on above-mentioned pto＝power take-off, be provided with feather key, described driven stepped gear coordinates installation with pto＝power take-off by feather key, fix by bearing at this mounting type medium power output shaft two ends, driven stepped gear is slippage stepped gear, is driven and can be made driven stepped gear slide on pto＝power take-off along feather key by oil hydraulic cylinder, cylinder or leading screw.
(2) above-mentioned driven stepped gear be fixedly connected on can axially movable pto＝power take-off on, this mounting type medium power output shaft under drive unit along moving axially, drive driven stepped gear to move axially, pto＝power take-off two ends are connected with inside and are provided with the bearing support of bearing, and oil hydraulic cylinder, cylinder or leading screw live axle bearing can make pto＝power take-off move axially and drive driven stepped gear to move axially.
The beneficial effects of the utility model can be learnt from above-mentioned technological scheme: a kind of multi-change speed mechanism, initiatively in stepped gear, the driving gear of different size can be realized multiple velocity ratio by driving gear with driven gear engagement corresponding in driven stepped gear, by controlling moving axially and the adjustment that can realize different drive ratios that moves radially of transmission shaft of initiatively stepped gear and driven stepped gear, it is simple in structure, stable drive, reduce assembly technology complexity and technical, cost is lower, convenient control.
As can be seen here, the utility model compared with prior art, have substantive distinguishing features and progress, the beneficial effect of its enforcement is also apparent.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the plan structure schematic diagram of the utility model embodiment;
Fig. 3 be the utility model lowest speed than time structural representation;
Fig. 4 be the utility model the most at a high speed than time structural representation;
Initial configuration schematic diagram when Fig. 5 is the utility model speed change;
Fig. 6 is structural representation Fig. 1 of the utility model process of rising speed change;
Fig. 7 is structural representation Fig. 2 of the utility model process of rising speed change;
Fig. 8 is structural representation Fig. 3 of the utility model process of rising speed change;
Fig. 9 is structural representation Fig. 1 of the utility model process of falling speed change;
Figure 10 is structural representation Fig. 2 of the utility model process of falling speed change;
Figure 11 is structural representation Fig. 3 of the utility model process of falling speed change.
1-power input shaft in figure, 2-is stepped gear initiatively, 3-transmission shaft, 4-driving gear, 5-pto＝power take-off, the driven stepped gear of 6-, 7-motor, 8-coupling, 9-leading screw I, 10-nut, 11-bearing support I, 12-leading screw II, 13-bearing bracket, 14-bearing support II, 15-leading screw III.
Embodiment
For clearly demonstrating the technical characterstic of this programme, below by embodiment, and in conjunction with its accompanying drawing, this programme is set forth.
As depicted in figs. 1 and 2: a kind of multi-change speed mechanism, it comprises power input shaft 1, intermediate transmission body and pto＝power take-off 5, on described power input shaft 1, be provided with initiatively stepped gear 2, on described pto＝power take-off 5, be provided with the driven stepped gear 6 mating with active stepped gear 2, a driving gear in described active stepped gear 2 carries out transmission by intermediate transmission body with a driven gear engagement corresponding in driven stepped gear 6.
Above-mentioned intermediate transmission body comprises the transmission shaft 3 that can move radially, and on described transmission shaft 3, is provided with driving gear 4, and described power input shaft 1, transmission shaft 3 are parallel with the axis of pto＝power take-off 5.Wherein, the moving radially structure and can realize by following structure of transmission shaft: the two ends of described transmission shaft are connected with inside and are provided with the bearing support of bearing, and bearing support drives by hydraulic rod, cylinder or leading screw, thereby drives transmission shaft to move radially.
The two ends of described transmission shaft 3 are fixedly connected with by bearing, and bearing is fixed on bearing support, and bearing support drives by oil hydraulic cylinder, cylinder or leading screw.In the present embodiment, the bearing support at transmission shaft 3 two ends is fixed on bearing bracket 13, and motor 7 drives the medium position of leading screw II driving bearing seat support 13 to realize moving radially of transmission shaft 3.
Described active stepped gear 2 large ends and the large end of driven stepped gear 6 are positioned at homonymy or the heteropleural of driving gear 4, and in the present embodiment, described active stepped gear 2 large ends and the large end of driven stepped gear 6 are positioned at the homonymy of driving gear 4.
Described active stepped gear 2 is stack gear train or integrated formed structure, and described driven stepped gear 6 is stack gear train or integrated formed structure, in the present embodiment, and described active stepped gear 2 structure that is formed in one, driven stepped gear 6 structure that is formed in one.
Described active stepped gear 2 is identical with the gear parameter of the different layers of driven stepped gear 6, and just number of teeth difference, can normally engage with driving gear 4.
The gear parameter that the gear quantity of described active stepped gear 2 and driven stepped gear 6 equates and position is corresponding is identical, and described active stepped gear 2 and driven stepped gear 6 successively successively decrease from large end to small end radius, and decrement is identical.
Above-mentioned power input shaft 1 coordinates mounting type to have following two kinds with active stepped gear 2:
(1) on above-mentioned power input shaft 1, be provided with feather key, described active stepped gear 2 coordinates installation by feather key with power input shaft 1, fix by bearing at this mounting type medium power input shaft 1 two ends, initiatively stepped gear 2 is slippage stepped gear, is driven and can be made initiatively stepped gear 2 slide on power input shaft 1 along feather key by oil hydraulic cylinder, cylinder or leading screw.
(2) above-mentioned active stepped gear 2 be fixedly connected on can axially movable power input shaft 1 on, this mounting type medium power input shaft 1 under drive unit along moving axially, drive initiatively stepped gear 2 to move axially, power input shaft 1 two ends are connected with inside and are provided with the bearing support of bearing, and bearing support can coordinate under driving and move axially at oil hydraulic cylinder, cylinder or feed screw nut.In the present embodiment, initiatively stepped gear 2 be fixedly connected on can axially movable power input shaft 1 on, described power input shaft 1 two ends are connected with inside and are provided with the bearing support I 11 of bearing, bearing support I 11 drives the leading screw I 9 coordinating with nut 10 to drive by motor 7, and nut 10 is fixedly connected with bearing support I 11.
The same with the mode that initiatively stepped gear 2 cooperations are installed with power input shaft 1, above-mentioned pto＝power take-off 5 also has following two kinds with the mounting type of driven stepped gear 6:
(1) on above-mentioned pto＝power take-off 5, be provided with feather key, described driven stepped gear 6 coordinates installation by feather key with pto＝power take-off 5, fix by bearing at this mounting type medium power output shaft 5 two ends, driven stepped gear 6 is slippage stepped gear, and it can slide along feather key on pto＝power take-off 5.
(2) above-mentioned driven stepped gear 6 be fixedly connected on can axially movable pto＝power take-off 5 on, this mounting type medium power output shaft 5 under drive unit along moving axially, drive driven stepped gear 6 to move axially, pto＝power take-off 5 two ends are connected with inside and are provided with the bearing support of bearing, and bearing support can move axially under oil hydraulic cylinder, cylinder or leading screw drive.In the present embodiment, driven stepped gear 6 be fixedly connected on can axially movable pto＝power take-off 5 on, described pto＝power take-off 5 two ends are connected with inside and are provided with the bearing support I 11 of bearing, bearing support I 11 drives the leading screw II 15 coordinating with nut 10 to drive by motor 7, and nut 10 is fixedly connected with bearing support I 11.
As shown in Figure 3, initiatively the minimum driving gear in stepped gear 2 engages with the maximum driven gear in driven stepped gear 6 by driving gear 4, and output speed is minimum, and speed ratio is minimum.
As shown in Figure 4, initiatively the maximum driving gear in stepped gear 2 engages with the minimum driven gear in driven stepped gear 6 by driving gear 4, output speed maximum, and speed ratio is the highest.
The speed-change process of multi-change speed described in the utility model mechanism is divided into and rises speed change and fall speed change.
As shown in Fig. 5, Fig. 6, Fig. 7 and Fig. 8, rising the process of speed change is: engage with driving gear 4 disengagings driven stepped gear 6 one or more gears position that declines, transmission shaft 3 is with nutating gear 4 to move radially to pto＝power take-off 5 directions, driving gear 4 engages with the driven gear in new driven stepped gear 6, the initiatively stepped gear 2 gear position that declines identical with driven stepped gear 6 of rising, realize initiatively stepped gear 3 and engage with driving gear 4, complete and rise speed-change process.
As shown in Fig. 5, Fig. 9, Figure 10, Figure 11, the process of falling speed change is: initiatively engage with driving gear 4 disengagings stepped gear 2 one or more gears position that declines, transmission shaft 3 is with nutating gear 4 to move radially to power input shaft 1 direction, driving gear 4 engages with the driving gear in new active stepped gear 2, the gear position that driven stepped gear 6 rises with initiatively stepped gear 2 declines identical, realize driven stepped gear 6 and engage with driving gear 4, complete and fall speed-change process.
In the utility model, the large end of above-mentioned active stepped gear 2 and the large end of driven stepped gear 6 can also be positioned at the both sides of driving gear 4.While carrying out speed change, initiatively stepped gear 2 is identical with the axial motion direction of driven stepped gear 6, does not repeat them here.
In the utility model, can pass through or adopt existing techniques in realizing without the technical characteristics of describing; do not repeat them here; certainly; above-mentioned explanation is not to restriction of the present utility model; the utility model is also not limited in above-mentioned mode of execution; variation, remodeling, interpolation or replacement that those of ordinary skill in the art makes in essential scope of the present utility model, also should belong to protection domain of the present utility model.
Claims (9)
1. a multi-change speed mechanism, it is characterized in that: it comprises power input shaft, intermediate transmission body and pto＝power take-off, on described power input shaft, be provided with initiatively stepped gear, on described pto＝power take-off, be provided with the driven stepped gear mating with active stepped gear, a driving gear in described active stepped gear is by intermediate transmission body and a driven gear engagement driving corresponding in driven stepped gear.
2. multi-change speed according to claim 1 mechanism, is characterized in that: described intermediate transmission body comprises the transmission shaft that can move radially, and on described transmission shaft, is fixedly connected with driving gear, and the axis of described power input shaft, transmission shaft and pto＝power take-off is parallel.
3. multi-change speed according to claim 2 mechanism, is characterized in that: the described active stepped gear structure that is formed in one, the described driven stepped gear structure that is formed in one.
4. multi-change speed according to claim 2 mechanism, is characterized in that: described active stepped gear is stack gear train, and described driven stepped gear is stack gear train.
5. according to the multi-change speed mechanism described in claim 3 or 4, it is characterized in that: described active stepped gear is identical with the gear parameter that gear quantity equates and position is corresponding of driven stepped gear, described active stepped gear and driven stepped gear successively successively decrease from large end to small end radius, and decrement is identical.
6. multi-change speed according to claim 2 mechanism, is characterized in that: the large end of described active stepped gear and the large end of driven stepped gear are positioned at the homonymy of driving gear.
7. multi-change speed according to claim 2 mechanism, is characterized in that: the large end of described active stepped gear and the large end of driven stepped gear are positioned at the both sides of driving gear.
8. multi-change speed according to claim 1 and 2 mechanism, it is characterized in that: on described power input shaft and pto＝power take-off, be separately installed with feather key, described active stepped gear and driven stepped gear coordinate installation by feather key with power input shaft and pto＝power take-off respectively.
9. multi-change speed according to claim 1 and 2 mechanism, is characterized in that: described active stepped gear be fixed on can axially movable power input shaft on, described driven stepped gear be fixed on can axially movable pto＝power take-off on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320886235.6U CN203686009U (en) | 2013-12-31 | 2013-12-31 | Multistage speed-changing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320886235.6U CN203686009U (en) | 2013-12-31 | 2013-12-31 | Multistage speed-changing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203686009U true CN203686009U (en) | 2014-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320886235.6U Expired - Fee Related CN203686009U (en) | 2013-12-31 | 2013-12-31 | Multistage speed-changing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203686009U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103758948A (en) * | 2013-12-31 | 2014-04-30 | 胥祥朋 | Multistage speed changing device |
| CN104149298A (en) * | 2014-07-29 | 2014-11-19 | 孙小平 | PTFE pushing machine |
| CN109139880A (en) * | 2018-09-27 | 2019-01-04 | 建科机械（天津）股份有限公司 | A kind of multi gear speed change drawbench |
| CN113153986A (en) * | 2021-01-11 | 2021-07-23 | 高隆习 | High-efficiency automobile speed change system |
-
2013
- 2013-12-31 CN CN201320886235.6U patent/CN203686009U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103758948A (en) * | 2013-12-31 | 2014-04-30 | 胥祥朋 | Multistage speed changing device |
| CN103758948B (en) * | 2013-12-31 | 2016-09-14 | 胥祥朋 | A kind of step by-step variable gear |
| CN104149298A (en) * | 2014-07-29 | 2014-11-19 | 孙小平 | PTFE pushing machine |
| CN104149298B (en) * | 2014-07-29 | 2017-05-31 | 孙小平 | PTFE extruding machines |
| CN109139880A (en) * | 2018-09-27 | 2019-01-04 | 建科机械（天津）股份有限公司 | A kind of multi gear speed change drawbench |
| CN109139880B (en) * | 2018-09-27 | 2024-02-27 | 建科机械（天津）股份有限公司 | Multi-gear variable-speed drawing machine |
| CN113153986A (en) * | 2021-01-11 | 2021-07-23 | 高隆习 | High-efficiency automobile speed change system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140702 Termination date: 20151231 |
|
| EXPY | Termination of patent right or utility model |