CN201156880Y

CN201156880Y - Seed shaft speed-adjusting gear of seed-sowing machine

Info

Publication number: CN201156880Y
Application number: CNU2007201167178U
Authority: CN
Inventors: 王作平; 宋文明
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-08-02
Filing date: 2007-08-02
Publication date: 2008-12-03
Anticipated expiration: 2017-08-02

Abstract

The utility model relates to a seeder seed shaft speed governing device which is composed of a main drive shaft, a drive sprocket, a driven shaft, a driven sprocket and a gear change mechanism, wherein, the gear change mechanism is composed of a clutch, a drill key, a connecting bar, a teleflex, a teleflex shaft and a hand handle, and the clutch is composed of a driving brake gear sleeve, a driven brake gear sleeve, a speed change sprocket wheel, a pin roll and a spring. The seeder seed shaft speed governing device is characterized in that the regulation of the seeding quality can be conducted without stopping, and the seeding quantity is conveniently regulated according to the difference of earthiness in an operating plot, thereby ensuring the dependable crop and the high yielding of crops.

Description

Sower seed shaft speed adjusting gear

Affiliated technical field

The utility model relates to a kind of sower seed shaft speed adjusting gear, especially a kind of sower seed shaft speed adjusting gear of adjusting seed shaft rotating speed control seeding quantity.

Background technology

Known Seeder for crops is when seeding operation, be according to the amount of seed metering sowing of setting, seeding quantity is constant, as everyone knows, looking the soil property difference amount of sowing just should be different, for example, when having the situation of two kinds of different soil properties in the operation plot, adjust the seeding quantity gear that changes the outfit that must stop, to reach the purpose of adjusting seeding quantity, because of it adjusts the seeding quantity inconvenience,, therefore there is necessary shut-down operation when adjusting seeding quantity according to the seeding quantity sowing of setting, inconvenient operation, prolong the seeding operation time, can not look the difference of soil property, adjusted the deficiency of the amount of sowing at any time.

Summary of the invention

In order to overcome the necessary shut-down operation of adjustment seeding quantity that prior art exists, inconvenient operation has prolonged the seeding operation time, can not look the difference of soil property, adjusts the deficiency of the amount of sowing at any time.The utility model provides a kind of sower seed shaft speed adjusting gear, and this sower seed wheel speed adjusting gear is not only sowed evenly, must shut-down operation when adjusting seeding quantity, look the difference of soil property, and adjust the amount of sowing easily.

The technical scheme in the invention for solving the technical problem is: it is by driving shaft, drive sprocket, driven shaft, driven sprocket and speed change gear are formed, driving shaft, bearing inner ring tight fit in watt seat on driven shaft two ends and the sower, a grade platform is arranged on the driven shaft, two drive sprocket centre bores cooperate with driving shaft external diameter key, the driven sprocket centre bore cooperates with driven shaft 21 external diameter keys, driven sprocket is a click sprocket wheel, its center is porose, and cooperate with driven shaft external diameter key, speed change gear is by clutch, drift, connecting rod, pivoted housing, pivoted housing axle and handle are formed, clutch is by active clutch tooth cover, this cover of driven clutch, speed-changing chain, bearing pin, spring is formed, initiatively clutch tooth cover is an one with speed-changing chain, and cooperate with the driven shaft external diameter, solid in the spacing ring washer through cooperate jackscrew to push up with speed-changing chain side and driven shaft external diameter, driven clutch tooth is with a slotted hole, driven clutch tooth cover internal diameter and driven shaft external diameter are slidingly matched, hole tight fit on alignment pin and the driven shaft, and the slotted hole that puts with driven clutch tooth is slidingly matched, spring inside diameter cooperates with the driven shaft external diameter, its two ends cooperate with driven clutch tooth cover end face and shelves platform respectively, initiatively clutch tooth cover and driven clutch tooth cover have the drift slide unit respectively, be slidingly matched between drift and drift slide unit, connecting rod one end cooperates solid welding with the narrow end of drift, connecting rod one end cooperates solid welding with pivoted housing, hole coordination hinge on the twisted axis and the connecting rod other end, warp is rotatably assorted with pivoted housing axle external diameter in the pivoted housing, pivoted housing axle two ends cooperate solid welding, drive sprocket and speed-changing chain with pivoted housing axis fixing plate on the sower frame, drive sprocket and driven sprocket, cooperate transmission with chain between driven sprocket and feed shaft sprocket wheel.

The beneficial effects of the utility model are: must shut-down operation when adjusting seeding quantity, can in an operation plot, look the difference of soil property, and adjust the amount of sowing easily, guarantee the crop stable and high yields.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is the utility model released state structural front view;

Fig. 2 is that the utility model is clutch state structure C-C cutaway view of Fig. 1;

Fig. 3 is the utility model engagement structural front view;

Fig. 4 is the engagement D-D sectional structure front view of the utility model Fig. 3;

Fig. 5 is that the utility model is the A-A ratchet chain sprocket structure view of Fig. 1;

Fig. 6 is that the utility model is the B-B sectional structure view of Fig. 1;

Embodiment

Embodiment of the present utility model is: with reference to Fig. 1, it is by driving shaft 13, drive

sprocket

12,18, driven shaft 21, driven

sprocket

19,20 and speed change gear form, driving shaft 13, bearing inner ring tight fit in watt seat on driven shaft 21 two ends and the sower, grade platform 4 is arranged on the driven shaft 21, with reference to Fig. 1, Fig. 5, two

drive sprockets

12,18 centre bores cooperate with driving shaft 13 external diameter keys, driven sprocket 20 centre bores cooperate with driven shaft 21 external diameter keys, with reference to Fig. 1, Fig. 5 driven sprocket 19 is a click sprocket wheel, its center is porose, and cooperate with driven shaft 21 external diameter keys, with reference to Fig. 1 Fig. 2 speed change gear by clutch, drift 7, connecting

rod

11,16, pivoted housing 14, pivoted housing axle 15 and handle 10 are formed, overlap 22 with reference to Fig. 1 clutch by active clutch tooth, driven clutch tooth cover 17, speed-changing chain 9, bearing pin 6, spring 5 is formed, initiatively clutch tooth cover 22 is an one with speed-changing chain 9, and cooperate with driven shaft 21 external diameters, solid in the spacing ring washer 25 through cooperate jackscrew to push up with speed-changing chain 9 sides and driven shaft 21 external diameters, clutch tooth cover 17 has a slotted hole, driven clutch tooth overlaps 17 internal diameters and driven shaft 21 external diameters are slidingly matched, with reference to Fig. 6, hole tight fit on alignment pin 6 and the driven shaft 21, and be slidingly matched with the slotted hole on the clutch tooth cover 17, spring 5 internal diameters cooperate with driven shaft 21 external diameters, its two ends overlap 17 end faces with driven clutch tooth respectively and shelves platform 4 cooperates, initiatively clutch tooth cover 22 and driven clutch tooth cover 17 have drift slide unit 8 respectively, 23, drift 7 and

drift slide unit

8,23 are slidingly matched, connecting rod 11 1 ends cooperate solid welding with drift 7 narrow ends, connecting rod 16 1 ends cooperate solid welding with pivoted housing 14, twisted axis 24 and connecting rod 11, hole coordination hinge on 16 other ends, warp is rotatably assorted with pivoted housing axle 15 external diameters in the pivoted housing 14, pivoted housing axle 15 two ends cooperate solid welding with pivoted housing axis fixing plate on the sower frame, drive sprocket 12 and speed-changing chain 9, drive sprocket 18 and driven

sprocket

19,2 on driven sprocket 20 and feed shaft sprocket wheel cooperate transmission with chain, with reference to Fig. 1, Fig. 2, principle is during its work of Fig. 3 Fig. 4, when normal seeding operation, move handle 10 counterclockwise, pivoted housing 14 rotates counterclockwise on pivoted housing axle 15, connecting

rod

11,16 and twisted axis 22 pulling drifts 7 at

drift slide unit

8,23 are slided, at this moment drift 7 wide ends and

drift slide unit

8,23 cooperations, clutch tooth cover 17 prolongs alignment pin 6 and driven shaft 21 slides, spring 5 compressions, clutch separation, at this moment clutch tooth cover 22 and speed-changing chain 9 idle running, drive sprocket 18 and driven sprocket 19, driven sprocket 20 and feed shaft sprocket wheel 2 are through chain drive, feed shaft 1 rotates, the seed wheel that drives in the feed up 3 rotates seeding, with reference to Fig. 3, when Fig. 4 improves feed shaft 1 rotating speed when needs, move handle 10 clockwise, pivoted housing 14 clockwise rotates,

footpath connecting rod

16,11 and hinge 22 promote drifts 7 and move ahead, spring 5 is upspring,

clutch tooth cover

17 and 22 engagements of clutch tooth cover, at this moment drift 7 narrow ends and

drift slide unit

8,23 cooperations, speed-changing chain 9 rotations, driven shaft 21 rotations, rotating speed increases and overcomes stage clip 27 tension force, ratchet in the driven sprocket 19 cooperates slip with ratchet, driven sprocket 19 idle running, driven sprocket 21 drives seeding sprocket wheel 2 and feed shaft 1 rotation through chain, increases amount of seed metering.

Claims

1, the utility model relates to a kind of sower seed shaft speed adjusting gear, it is by driving shaft, drive sprocket, driven shaft, driven sprocket and speed change gear are formed, it is characterized in that: driving shaft, bearing inner ring tight fit in watt seat on driven shaft two ends and the sower, a grade platform is arranged on the driven shaft, two drive sprocket centre bores cooperate with driving shaft external diameter key, the driven sprocket centre bore cooperates with driven shaft (21) external diameter key, driven sprocket is a click sprocket wheel, its center is porose, and cooperate with driven shaft external diameter key, initiatively clutch tooth cover is an one with speed-changing chain, and cooperate with the driven shaft external diameter, spacing ring washer internal diameter cooperates the jackscrew top solid with speed-changing chain side and driven shaft external diameter, driven clutch tooth is with a slotted hole, driven clutch tooth cover internal diameter and driven shaft external diameter are slidingly matched, hole tight fit on alignment pin and the driven shaft, and the slotted hole that puts with driven clutch tooth is slidingly matched, spring inside diameter cooperates with the driven shaft external diameter, its two ends cooperate with driven clutch tooth cover end face and shelves platform respectively, initiatively clutch tooth cover and driven clutch tooth cover have the drift slide unit respectively, be slidingly matched between drift and drift slide unit, connecting rod one end cooperates solid welding with the narrow end of drift, connecting rod one end cooperates solid welding with pivoted housing, hole coordination hinge on the twisted axis and the connecting rod other end, pivoted housing internal diameter and pivoted housing axle external diameter are rotatably assorted, pivoted housing axle two ends cooperate solid welding, drive sprocket and speed-changing chain with pivoted housing axis fixing plate on the sower frame, drive sprocket and driven sprocket, cooperate transmission with chain between driven sprocket and feed shaft sprocket wheel.