CN201612025U - Air-suction precision seeder gearbox - Google Patents
Air-suction precision seeder gearbox Download PDFInfo
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- CN201612025U CN201612025U CN2010200460290U CN201020046029U CN201612025U CN 201612025 U CN201612025 U CN 201612025U CN 2010200460290 U CN2010200460290 U CN 2010200460290U CN 201020046029 U CN201020046029 U CN 201020046029U CN 201612025 U CN201612025 U CN 201612025U
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Abstract
The utility model provides an air-suction precision seeder gearbox, which relates to the technical field of seeders, and comprises a gearbox shell, a driving shaft and a driven shaft. The air-suction precision seeder gearbox is characterized in that the driving shaft is provided with more than two driving sprocket wheel groups which are connected together by sprocket wheels, the driven shaft is provided with more than two driven sprocket wheel groups which are connected by the sprocket wheels, public exchange transmission chains are arranged between the driving sprocket wheel groups and the driven sprocket wheel groups, and a chain tension and release mechanism are arranged. The air-suction precision seeder gearbox has the effective effects that the air-suction precision seeder gearbox overcomes the defect in the prior art, has simple and compact structure, small body type, convenient and rapid adjusting, operating and using and steady and reliable transmission, and can achieve more than ten transmission radios, effectively saves space, and also can avoid the faults that chains are blocked, falling or abrasion and failure because of the vibration or non-uniform force of machine tools during the operating process. The air-suction precision seeder gearbox is particularly suitable for an air-suction precision seeder.
Description
Technical field
The utility model relates to technical field of seeders.
Background technology
China is vast in territory, and agriculture requirement is different with the difference of geography; Even at areal, the user is to the also difference to some extent of requirement of sower.With regard to the crop spacing in the rows, its scope does not wait from 15cm to 35cm, and the popularization of precision planter more requires the accurate and various of its spacing in the rows.A good seeding machinary must possess the adjusting function of multiple spacing in the rows, satisfies the needs of more users.At present sower relies on mostly and changes the seed plate hole count or the drive sprocket number of teeth is regulated spacing in the rows, and operating fast is to come speed governing by a miniature gear gearbox.Thereby change meshed gears change gearratio by stirring handle.But because seeding machinary self size is less, compact conformation, the gearbox volume is restricted, thereby adjusts being limited in scope of spacing in the rows.And the processing of narrow and small gear box casing internal gear cooperation all can not be accomplished perfect itself, so occur unavoidably in the use skidding or the fault of damaging.The performance of replacing formula is relatively stable, but inconvenient operation, and influence has prolonged technology service time, has reduced tractor driver's operating efficiency.Above-mentioned two kinds all can not be satisfied the requirement that many spacing in the rows are adjusted to a greater extent.
Summary of the invention
The purpose of this utility model provides a kind of air-suction type accurate sower gearbox, and it is simple in structure, compact, build is small and exquisite, and easy to adjust quick, stable drive is reliable, can realize multiple gearratio.Be specially adapted on the air-suction type accurate sower.
Main technical schemes of the present utility model is: a kind of air-suction type accurate sower gearbox, comprise gear box casing, driving shaft and driven shaft, it is characterized in that being equipped with on the driving shaft drive sprocket set that links together by the sprocket wheel more than two, the driven chain wheels that linked together by the sprocket wheel more than two are housed on the driven shaft, be provided with public interchangeable driving chain between drive sprocket set and driven chain wheels, and be provided with chain tension and release mechanism.
Described chain tension and release mechanism are that chain elastic tension and release mechanism are better.Elastic pulling force tensioning driving chain, this soft readjustment mode can avoid vibrations of facility in the operation process or unbalance stress to cause the chain clamping stagnation, come off or the fault of wear out failure.
The structure of described chain tension and release mechanism can be inside and outside regulating wheel lever-type structure, and balance pivot is on the two-wheel axial connecting line or outside the axial connecting line, and is provided with rotary type chain tension and release construction.The structure of chain tension and release mechanism also can be other structures, as single or multiple regulating wheel lever-type structures etc.
Described inside and outside regulating wheel lever-type structure can be: have isosceles triangle steel plate frame, the position that balance pivot is selected in close summit, triangle waist limit is good, and it is eccentric that it is formed, and is promptly rotatable by deadweight; Inside and outside regulating wheel axle center is respectively in leg-of-mutton two footing positions.
Described rotary type tensioning and release construction are that chain elastic tension and release mechanism can be: gear box casing is provided with jockey sprocket, the tension chain is walked around jockey sprocket, the triangular apex position of one end and isosceles triangle steel plate frame is connected to good, the other end links to each other with tensioning spring, the other end of tensioning spring is connected on the lever tensioning handle, and is provided with lever tensioning handle locking block.Make spring tension produce a moment and drive the rotation of two-wheel assembly, realize the tensioning of driving chain the two-wheel tension assembly.Jockey sprocket changes the spring tension direction, has effectively saved the space; The guiding chain can change the contact point with directive wheel immediately in the pulling force that transmits tensioning spring, guarantee that elastic force is suitable, can make driving chain be in optimum state all the time.
Described tensioning spanner is shaped better by steel plate bending.Spanner after the steel plate bending is not only elegant in appearance but also save the space, and is easy to operate.
In the middle of the sprocket piece of described drive sprocket set and driven chain wheels the pad equi-spaced apart can be arranged.
Described driving shaft and driven shaft can be used the bushing type axle, and the bearing holder (housing, cover) that cooperates with the dual face seals bearing is equipped with at bushing type axle two ends, and the dual face seals bearing all is equipped with at drive wheel assemblies and driven pulley assembly two ends, and bearing block is fixed on the gear box casing both sides.Bearing holder (housing, cover) is good with the powder metallurgy material.
Good effect of the present utility model is: overcome the deficiencies in the prior art; It is simple in structure, compact, build is small and exquisite, adjusting, operation, convenient to use, stable drive is reliable, can realize more than ten kind of gearratio, effectively save the space, also can avoid facility vibrations in the operation process or unbalance stress to cause the chain clamping stagnation, come off or the fault of wear out failure.On special application and the air-suction type accurate sower.
Be described in further detail below in conjunction with embodiment and accompanying drawing, but not as to qualification of the present utility model.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is the A-A cutaway view among Fig. 1.
Fig. 3 is that B among Fig. 1 is to view.
Fig. 4 is the partial enlarged drawing of C among Fig. 1.
Among Fig. 1～Fig. 4, each label implication is: 1. driving chain, 2. bushing type axle, 3. drive sprocket set, 4. gear shift cover, 5. lever tensioning handle, 6. tensioning spring, 7. two-wheel tension assembly, 8. gear box casing, 9. tension chain, 10. jockey sprocket, 11. driven chain wheels, 12. sprocket wheels, (13. sprocket piece) pad, 14. the dual face seals bearing, 15. bearing blocks, 16. bearing holder (housing, cover)s, 17. tensioning spanner dogbolt, 18. tensioning spanner pivot bolt, 19. nylon rollers, 20. isosceles triangle steel plate framves, 21. the guiding chain draws a little 22. (the two-wheel tension assembly) balance pivot.
Embodiment
Referring to Fig. 1～Fig. 4, this air-suction type accurate sower gearbox, comprise the gear box casing 8 that matches with the frame crossbeam, driving shaft and driven shaft, the drive sprocket set 3 that is linked together by the sprocket wheel more than two 12 is housed on the driving shaft, the driven chain wheels 11 that linked together by the sprocket wheel more than two 12 are housed on the driven shaft, 11 of drive sprocket set 3 and driven chain wheels are provided with public interchangeable driving chain 1, be provided with rotary type chain elastic tension and release construction: have isosceles triangle steel plate frame 20, balance pivot 22 is selected in the position of triangle waist limit near the summit, and inside and outside regulating wheel axle center is respectively in leg-of-mutton two footing positions; Gear box casing 8 is provided with jockey sprocket 10, tension chain 9 is walked around jockey sprocket 10, one end links to each other with the triangular apex position of isosceles triangle steel plate frame 20, the other end links to each other with tensioning spring 6, the other end of tensioning spring 6 is connected on the lever tensioning handle 5, and is provided with lever tensioning handle 5 locking blocks.Tensioning spanner 5 is shaped by steel plate bending.Pad 13 equi-spaced apart are arranged in the middle of the sprocket piece of drive sprocket set 3 and driven chain wheels 11; Driving shaft and driven shaft are bushing type axle 2, and the bearing holder (housing, cover) 16 that cooperates with dual face seals bearing 14 is equipped with at bushing type axle two ends, and dual face seals bearing 14 all is equipped with at drive wheel assemblies 3 and driven pulley assembly 11 two ends, and bearing block 15 is fixed on the gear box casing both sides.
Initiatively the two ends of wheels 3 and driven wheels 11 respectively are equipped with dual face seals bearing 14, be fixed on the gear box casing 8 by bearing block 15, (sprocket piece 12 that comprises initiatively wheels 3 and driven wheels 11 links together by bolt chain wheel set, the centre separates with sprocket wheel pad 13, avoids chain and sprocket wheel friction.Be provided with a sleeve pipe that matches with power transmission shaft 2 in the middle of the chain wheel set, the sleeve pipe two ends are provided with the bearing holder (housing, cover) 16 that not only cooperates with sleeve pipe but also cooperate with bearing, purpose is connection bearing and chain wheel set and it is installed on the gear box casing, easy accessibility and guaranteed to rotate flexibly.Tensioning spanner 5 is that fulcrum can rotate with a connecting bolt 18 of gear box casing 8, by the conversion of control tensioning spanner 5 control driving chains 1.Two-wheel tension assembly 7 can play tension to driving chain 1, and regulating wheel is provided with two, has increased the adjusting range of driving chain 1, has guaranteed the use of a plurality of sprocket pieces 12.Tensioning spring 6 can carry out soft readjustment to driving chain 1 in operation process, avoid facility vibrations to cause the chain clamping stagnation, come off or the fault of wear out failure.The housing that sealing exposed below above gear box casing 8 was designed to, this mainly is the operating environment at the no-till maize machine, and Box Cover is arranged above, prevents that dust from entering, and exposes below to prevent that the foreign material of filling in from below such as stalk can the congestion affects transmission.
During the conversion spacing in the rows, gearbox body lid 4 is opened, tensioning spanner 5 is pushed aside from dogbolt 17, two-wheel tension assembly 7 loses the control of tensioning spring 6 and rotates forward by deadweight, make driving chain 1 lax, at this moment the spacing in the rows map table that contrasts in the Box Cover is placed driving chain 1 on the one group of sprocket piece 12 that needs, press tensioning spanner 5 again, the pulling force of tensioning spring 6 acts on the two-wheel tension assembly 7 by guiding chain 9, the two-wheel tension assembly 7 tensioning driving chain 1 that rotates backward, tensioning spanner 5 is fixed on the dogbolt 17, covers Box Cover 4.Whole procedure is simple and efficient to handle, and the gearbox transmission that is provided with elastic tension mechanism is stable, and the life-span is long.
Claims (8)
1. air-suction type accurate sower gearbox, comprise gear box casing (8), driving shaft and driven shaft, it is characterized in that being equipped with on the driving shaft drive sprocket set (3) that links together by the sprocket wheel more than two (12), the driven chain wheels (11) that linked together by the sprocket wheel more than two (12) are housed on the driven shaft, be provided with public interchangeable driving chain (1) between drive sprocket set (3) and driven chain wheels (11), and be provided with chain tension and release mechanism.
2. air-suction type accurate sower gearbox according to claim 1 is characterized in that described chain tension and release mechanism are chain elastic tension and release mechanism.
3. air-suction type accurate sower gearbox according to claim 1, the structure that it is characterized in that described chain tension and release mechanism is inside and outside regulating wheel lever-type structure, balance pivot (20) is on the two-wheel axial connecting line or outside the axial connecting line, and is provided with rotary type chain tension and release construction.
4. air-suction type accurate sower gearbox according to claim 3, it is characterized in that described inside and outside regulating wheel lever-type structure has isosceles triangle steel plate frame (20), balance pivot (22) is selected in the position of triangle waist limit near the summit, and inside and outside regulating wheel axle center is respectively in leg-of-mutton two footing positions.
5. air-suction type accurate sower gearbox according to claim 1, it is characterized in that described rotary type tensioning and release construction are chain elastic tension and release mechanism: gear box casing (8) is provided with jockey sprocket (10), tension chain (9) is walked around jockey sprocket (10), one end links to each other with the triangular apex position of isosceles triangle steel plate frame (20), the other end links to each other with tensioning spring (6), the other end of tensioning spring (6) is connected on the lever tensioning handle (5), and is provided with lever tensioning handle (5) locking block.
6. air-suction type accurate sower gearbox according to claim 5 is characterized in that described tensioning spanner (5) is shaped by steel plate bending.
7. air-suction type accurate sower gearbox according to claim 1 is characterized in that there is pad (13) equi-spaced apart the sprocket piece centre of described drive sprocket set (3) and driven chain wheels (11).
8. air-suction type accurate sower gearbox according to claim 1, it is characterized in that described driving shaft and driven shaft are bushing type axle (2), the bearing holder (housing, cover) (16) that cooperates with dual face seals bearing (14) is equipped with at bushing type axle two ends, dual face seals bearing (14) all is equipped with at drive wheel assemblies (3) and driven pulley assembly (11) two ends, and bearing block (15) is fixed on the gear box casing both sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200460290U CN201612025U (en) | 2010-01-07 | 2010-01-07 | Air-suction precision seeder gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200460290U CN201612025U (en) | 2010-01-07 | 2010-01-07 | Air-suction precision seeder gearbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201612025U true CN201612025U (en) | 2010-10-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010200460290U Expired - Fee Related CN201612025U (en) | 2010-01-07 | 2010-01-07 | Air-suction precision seeder gearbox |
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| CN (1) | CN201612025U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996719A (en) * | 2012-10-09 | 2013-03-27 | 吴小杰 | Grease lubricated special planet speed reducer for roller table for bearing |
| CN104285563A (en) * | 2014-08-21 | 2015-01-21 | 乐陵市天成工程机械有限公司 | Device for adjusting plant spacing of potato seeder |
| CN109937650A (en) * | 2019-03-15 | 2019-06-28 | 华南农业大学 | A kind of pneumatic seeder |
-
2010
- 2010-01-07 CN CN2010200460290U patent/CN201612025U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996719A (en) * | 2012-10-09 | 2013-03-27 | 吴小杰 | Grease lubricated special planet speed reducer for roller table for bearing |
| CN104285563A (en) * | 2014-08-21 | 2015-01-21 | 乐陵市天成工程机械有限公司 | Device for adjusting plant spacing of potato seeder |
| CN109937650A (en) * | 2019-03-15 | 2019-06-28 | 华南农业大学 | A kind of pneumatic seeder |
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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: 20101027 Termination date: 20180107 |