CN203015402U - Novel speed control system of double-speed rotary cultivator - Google Patents
Novel speed control system of double-speed rotary cultivator Download PDFInfo
- Publication number
- CN203015402U CN203015402U CN 201220727301 CN201220727301U CN203015402U CN 203015402 U CN203015402 U CN 203015402U CN 201220727301 CN201220727301 CN 201220727301 CN 201220727301 U CN201220727301 U CN 201220727301U CN 203015402 U CN203015402 U CN 203015402U
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- engaging sleeve
- gear
- travelling gear
- transmission shaft
- hole
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Abstract
The utility model relates to a novel speed control system of a double-speed rotary cultivator. The novel speed control system comprises a transmission shaft, a coulter transmission gear I sleeved on the transmission shaft, an engagement sleeve in spline fit with the transmission shaft, and a coulter transmission gear II sleeved on the transmission shaft, wherein the engagement sleeve is positioned between the coulter transmission gear I and the coulter transmission gear II; the two end surfaces of the engagement sleeve are respectively provided with a plurality of engagement sleeve teeth at intervals in a circumferential direction; a plurality of teeth of a gear I are arranged on the end surface of the coulter transmission gear I, opposite to the engagement sleeve, at intervals in a circumferential direction and can be engaged with the engagement sleeve teeth; a plurality of teeth of a gear II are arranged on the end surface of the coulter transmission gear II, opposite to the engagement sleeve, at intervals in a circumferential direction and can be engaged with the engagement sleeve teeth; and a circle of shifting rod slot vertical to the axis of the engagement sleeve is formed in the outer surface of the engagement sleeve. According to the novel speed control system, the speed control is realized by engagement and disengagement of the teeth, and the rotary cultivator can be subjected to speed control in a loaded state, so that the damage of the gears is avoided, and unnecessary economic losses are reduced.
Description
Technical field
The utility model relates to a kind of transmission case, relates in particular to a kind of double-speed rotary tiller Novel variable speed system.
Background technology
at present, all and 121, the double-speed rotary tiller top gear of 151 type walking tractor matching is all to use a kind of engaging sleeve with gear, when rotovator uses the slow block operation, engaging sleeve is by handling the engagement of driving lever and colter travelling gear, when farm work need to become high speed by low speed with rotovator, usually tractor driver directly separates engaging sleeve with handling driving lever with the colter travelling gear, through neutral, idler gear by double speed engaging sleeve gear and gear box of tractor meshes again, and be that the gear of on-load is meshed at this moment, very easily damage gear, cause the probability of damage of these two kinds of gears quite high.
This moment, the operation principle of tractor chassis was, as long as clutch is in the position of closing, even gearbox is in neutral position state, the gear that colter travelling gear and I are reversed gear is all the time in operating condition, if with clutch separation, again double-speed rotary tiller is changed into top gear (namely making the unloaded lotus engagement of double speed engaging sleeve gear and idler gear) recurrence step operation, to walk so simultaneously, high speed rotary tillage process again, the excess load of moment must cause tractor flame-out, or the damage of some parts, this does not meet the machine work principle, demonstrates technical immature.
Summary of the invention
In order to address the above problem, the utility model provides a kind of double-speed rotary tiller Novel variable speed system, adopts this speed change system, rotovator can be under the state of on-load speed change, the clutch by dental inlay comes speed change, thereby has avoided the damage of gear.
For achieving the above object, concrete scheme of the present utility model is:
a kind of double-speed rotary tiller Novel variable speed system, comprise power transmission shaft, be placed in the colter travelling gear one on power transmission shaft, also comprise the engaging sleeve that coordinates with splined driveshaft, be placed in the colter travelling gear two on power transmission shaft, described engaging sleeve is between colter travelling gear one and colter travelling gear two, the edge circumferentially is distributed with the engaging sleeve dental inlay of a plurality of spaces respectively on the both ends of the surface of described engaging sleeve, the edge circumferentially is furnished with gear one dental inlay a plurality of spaces and that can be meshed with the engaging sleeve dental inlay on described colter travelling gear one end face relative with engaging sleeve, the edge circumferentially is furnished with gear two dental inlays a plurality of spaces and that can be meshed with the engaging sleeve dental inlay on described colter travelling gear two end face relative with engaging sleeve, outer surface at described engaging sleeve has a circle driving lever groove vertical with the engaging sleeve axis.
one section splined shaft is arranged on described power transmission shaft, inner ring at described engaging sleeve has internal spline, the internal spline of described engaging sleeve matches with the splined shaft of power transmission shaft, one through hole that radially arranges along splined shaft is arranged between two adjacent teeth of the spline of described splined shaft, the screw that is connected with through hole whorl is housed in described through hole, be placed in the elastic component on screw, be placed in the steel ball on elastic component, half ball body of described steel ball is positioned at outside through hole, be evenly equipped with vertically the annular groove of a plurality of spaces at the inner ring of described engaging sleeve, the axle center of described annular groove is concentric with the axle center of internal spline, half ball body that described steel ball is positioned at outside through hole can be matched with annular groove.Here steel ball to be designed to half ball body and to be positioned at that to be matched with annular groove outside through hole be to run helter-skelter about engaging sleeve is not when moving transmission (namely not working) in order preventing, also the security consideration for rotovator designs.
At the bottom land of described driving lever groove, one assembling through hole is set, described assembling through hole communicates with through hole on described splined shaft.The purpose that this assembling through hole is set here is to consider the convenience of fit on, is convenient to install location elastic component and steel ball.
Colter travelling gear one on described power transmission shaft is meshed with I reverse gear in the gearbox of the tractor that is connected rotovator, idler gear in the gearbox of described colter travelling gear two and described tractor is meshed, described tractor comprises operating mechanism, and the tail end of the control crank of described operating mechanism is placed in the driving lever groove of described engaging sleeve.
In a side of described colter travelling gear one and a side of colter travelling gear two, the packing ring that is stuck on power transmission shaft is arranged respectively.
Described elastic component is spring.
The utility model comes speed change by the clutch of dental inlay, rotovator can be under the state of on-load speed change, avoided the damage of gear, reduced unnecessary economic loss.
Description of drawings
Fig. 1 is the structural representation that the utility model is matched with the gearbox of tractor;
Fig. 2 is the A-A cutaway view of removing in Fig. 1 after operating mechanism, control crank;
Fig. 3 is the B-B cutaway view in Fig. 2.
In figure: power transmission shaft 1, splined shaft 1-1, tooth 1-2, through hole 1-3, colter travelling gear 1, gear one dental inlay 2-1, engaging sleeve 3, engaging sleeve dental inlay 3-1, driving lever groove 3-2, internal spline 3-3, annular groove 3-4, assembling through hole 3-5, colter travelling gear 24, gear two dental inlay 4-1, screw 5, elastic component 6, steel ball 7, packing ring 8, gearbox 9, I reverse gear 10, idler gear 11, operating mechanism 12, control crank 13.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described.
Referring to accompanying drawing 1～accompanying drawing 3, a kind of double-speed rotary tiller Novel variable speed system, comprise power transmission shaft 1, be placed in colter travelling gear 1 on power transmission shaft 1, with the engaging sleeve 3 of power transmission shaft 1 spline fitted, be placed in the colter travelling gear 24 on power transmission shaft 1.
One section splined shaft 1-1 is arranged on power transmission shaft 1, inner ring at engaging sleeve 3 has the internal spline 3-3 that matches with splined shaft 1-1, the one through hole 1-3 that radially arranges along splined shaft 1-1 is arranged between two adjacent tooth 1-2 of the spline of splined shaft 1-1, the screw 5 that is threaded with through hole 1-3 is housed in through hole 1-3, is placed in elastic component 6 on screw 5, is placed in the steel ball 7 on elastic component 6, the present embodiment elastic component 6 is spring; Half ball body of steel ball 7 is positioned at outside through hole 1-3, the present embodiment is evenly equipped with the annular groove 3-4 of three spaces vertically at the inner ring of engaging sleeve 3, the axle center of annular groove 3-4 is concentric with the axle center of internal spline 3-3, and half ball body that steel ball 7 is positioned at outside through hole 1-3 can be matched with annular groove 3-4.
At the bottom land of driving lever groove 3-2, the one assembling through hole 3-5 that communicates with through hole 1-3 on splined shaft 1-1 is arranged.When assembling engaging sleeve 3 on power transmission shaft 1, at first screw 5 is screwed in through hole 1-3 on splined shaft 1-1 by spanner, then engaging sleeve 3 being loaded on splined shaft 1-1 by spline fitted, is then spring with elastic component 6(), steel ball 7 is put in through hole 1-3 through assembling through hole 3-5 successively.
The utility model speed change system coordinates with the gearbox of tractor, colter travelling gear 1 on power transmission shaft 1 is meshed with I reverse gear 10 in the gearbox 9 of the tractor that is connected rotovator, idler gear 11 in the gearbox 9 of colter travelling gear 24 and tractor is meshed, tractor comprises operating mechanism 12, and the tail end of the control crank 13 of operating mechanism 12 is placed in the driving lever groove 3-2 of engaging sleeve 3.when wishing the operation of rotovator slow block, the operator makes it stir engaging sleeve 3 left by the control crank 13 of stirring operating mechanism 12, the steel ball 7 that is positioned at splined shaft 1-1 through hole 1-3 moves down compression elastic piece 6 under the compressing of the spline tooth of the engaging sleeve 3 on the annular groove 3-4 right side at its place, engaging sleeve 3 can be moved to the left to the position that engaging sleeve dental inlay 3-1 is meshed with the gear one dental inlay 2-1 of colter travelling gear 1, because colter travelling gear 1 is meshed with I reverse gear 10 always, colter travelling gear 1 drives engaging sleeve 3 slow rotation together by gear one dental inlay 2-1, 3 of engaging sleeves drive power transmission shaft 1 slow rotation together by spline, make rotovator operation at a slow speed by transmission mechanism, when wishing the operation of rotovator fast block, the operator makes it stir engaging sleeve 3 to the right by the control crank 13 of stirring operating mechanism 12, engaging sleeve 3 is through middle apron, move to the right side again until the position that engaging sleeve dental inlay 3-1 is meshed with the gear two dental inlay 4-1 of colter travelling gear 24, because colter travelling gear 24 is meshed with idler gear 11 always, colter travelling gear 24 drives engaging sleeve 3 quick rotation together by gear two dental inlay 4-1, 3 of engaging sleeves drive power transmission shaft 1 quick rotation together by spline, make the rotovator sharp work by transmission mechanism, if wish that rotovator stops operation, operation also makes it stir engaging sleeve 3 by stirring control crank 13, mediate, half ball body being positioned at outside through hole 1-3 of steel ball 7 is matched with annular groove 3-4, prevents from running helter-skelter about engaging sleeve 3 is not when moving transmission (namely not working).
Claims (6)
1. double-speed rotary tiller Novel variable speed system, comprise power transmission shaft, be placed in the colter travelling gear one on power transmission shaft, it is characterized in that: also comprise the engaging sleeve that coordinates with splined driveshaft, be placed in the colter travelling gear two on power transmission shaft, described engaging sleeve is between colter travelling gear one and colter travelling gear two, the edge circumferentially is distributed with the engaging sleeve dental inlay of a plurality of spaces respectively on the both ends of the surface of described engaging sleeve, the edge circumferentially is furnished with gear one dental inlay a plurality of spaces and that can be meshed with the engaging sleeve dental inlay on described colter travelling gear one end face relative with engaging sleeve, the edge circumferentially is furnished with gear two dental inlays a plurality of spaces and that can be meshed with the engaging sleeve dental inlay on described colter travelling gear two end face relative with engaging sleeve, outer surface at described engaging sleeve has a circle driving lever groove vertical with the engaging sleeve axis.
2. double-speed rotary tiller Novel variable speed according to claim 1 system, it is characterized in that: one section splined shaft is arranged on described power transmission shaft, inner ring at described engaging sleeve has internal spline, the internal spline of described engaging sleeve matches with the splined shaft of power transmission shaft, one through hole that radially arranges along splined shaft is arranged between two adjacent teeth of the spline of described splined shaft, the screw that is connected with through hole whorl is housed in described through hole, be placed in the elastic component on screw, be placed in the steel ball on elastic component, half ball body of described steel ball is positioned at outside through hole, be evenly equipped with vertically the annular groove of a plurality of spaces at the inner ring of described engaging sleeve, the axle center of described annular groove is concentric with the axle center of internal spline, half ball body that described steel ball is positioned at outside through hole can be matched with annular groove.
3. double-speed rotary tiller Novel variable speed according to claim 2 system, it is characterized in that: the bottom land at described driving lever groove arranges an assembling through hole, and described assembling through hole communicates with through hole on described splined shaft.
4. double-speed rotary tiller Novel variable speed according to claim 3 system, it is characterized in that: the colter travelling gear one on described power transmission shaft is meshed with I reverse gear in the gearbox of the tractor that is connected rotovator, idler gear in the gearbox of described colter travelling gear two and described tractor is meshed, described tractor comprises operating mechanism, and the tail end of the control crank of described operating mechanism is placed in the driving lever groove of described engaging sleeve.
5. double-speed rotary tiller Novel variable speed according to claim 4 system, is characterized in that: in a side of described colter travelling gear one and a side of colter travelling gear two, the packing ring that is stuck on power transmission shaft is arranged respectively.
6. double-speed rotary tiller Novel variable speed according to claim 2 system, it is characterized in that: described elastic component is spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220727301 CN203015402U (en) | 2012-12-26 | 2012-12-26 | Novel speed control system of double-speed rotary cultivator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220727301 CN203015402U (en) | 2012-12-26 | 2012-12-26 | Novel speed control system of double-speed rotary cultivator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203015402U true CN203015402U (en) | 2013-06-26 |
Family
ID=48639430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220727301 Expired - Fee Related CN203015402U (en) | 2012-12-26 | 2012-12-26 | Novel speed control system of double-speed rotary cultivator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203015402U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108167398A (en) * | 2018-01-25 | 2018-06-15 | 中铁二院工程集团有限责任公司 | A kind of rack rails train dynamics switching device |
-
2012
- 2012-12-26 CN CN 201220727301 patent/CN203015402U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108167398A (en) * | 2018-01-25 | 2018-06-15 | 中铁二院工程集团有限责任公司 | A kind of rack rails train dynamics switching device |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130626 Termination date: 20161226 |