CN220268259U - One-way clutch of seeder - Google Patents

Abstract

The utility model relates to a one-way clutch of a seeder, which comprises a clutch sprocket and a mounting shell, wherein a first end face ratchet wheel is concentrically fixed on one side of the clutch sprocket, a through hole is arranged in the mounting shell, a hollow rotating shaft is rotatably connected to the through hole, a second end face ratchet wheel is slidingly connected to the hollow rotating shaft, the second end face ratchet wheel is matched with the first end face ratchet wheel, a spring is fixed on one side of the second end face ratchet wheel far away from the first end face ratchet wheel, a limit ring is fixed on one side of the spring, the limit ring is slidingly connected in the mounting shell, the central position of the clutch sprocket is rotatably connected to the hollow rotating shaft through a second bearing, clamping grooves are respectively formed at two ends of the hollow rotating shaft, opening clamp springs are arranged in the clamping grooves, and two groups of opening clamp springs are respectively attached to the clutch sprocket and the mounting shell; the design of the first end face ratchet wheel, the second end face ratchet wheel and the hollow rotating shaft can avoid that the land wheel drives the hollow rotating shaft to rotate during non-operation, and the transmission mode is simple, reliable and stable.

Description

One-way clutch of seeder

Technical Field

The utility model relates to the technical field of seeders, in particular to a one-way clutch of a seeder.

Background

The planter uses crop seeds as planting machines for planting certain types or crops, and is often called crop type names, such as grain drill, corn hill planter, cotton planter, pasture spreader, etc.

The clutch structure for connecting the land wheel and the poking plate in the seed storage box in the current seeder generally acts through a manual operation designated operating lever, needs to be operated in time when reversing the direction, is easy to cause the error sowing of seeds in the seed storage box, has certain requirements on the driving technology of operators by adopting the manual operation mode, is relatively complex in transmission mechanism, and is difficult to overhaul once damaged.

Disclosure of Invention

The utility model aims to solve the problems in the prior art and aims to provide a one-way clutch of a seeder, which aims to solve the technical problems in the background art.

In order to solve the problems, the utility model adopts the following technical scheme.

The utility model provides a one-way clutch of seeder, includes clutch sprocket and installation shell, clutch sprocket rotates to be connected one side of installation shell, one side that clutch sprocket is close to the installation shell is fixed with first end ratchet with one heart, be provided with the through-hole in the installation shell, be connected with hollow pivot through first bearing rotation in the through-hole, it has the second end ratchet to follow its length direction sliding connection in the hollow pivot, second end ratchet and first end ratchet cooperation set up, and one side that first end ratchet was kept away from to the second end ratchet is fixed with the spring, one side of spring is fixed with the spacing collar, in spacing collar sliding connection installation shell, clutch sprocket's central point put through the second bearing rotation connection in the hollow pivot, and the draw-in groove has been seted up respectively at hollow pivot's both ends, be provided with the opening jump ring in the draw-in groove, two sets of the opening jump ring is laminated with clutch sprocket and installation shell respectively.

Preferably, the hollow rotating shaft is provided with a sliding groove along the length direction, the axis position of the second end face ratchet wheel is provided with a sliding hole, the position in the sliding hole corresponding to the sliding groove is fixed with a sliding block, one end of the spring is axially fixed on the second end face ratchet wheel, and the spring is sleeved on the hollow rotating shaft.

Further, a ring-shaped mounting groove is formed in the mounting shell at a position corresponding to the hollow rotating shaft, a plane bearing is arranged in the ring-shaped mounting groove, and the limit ring is slidably connected to the plane bearing.

Further, two groups of sliding grooves are formed in the sliding groove.

Preferably, the number of the ratchet teeth of the first end face ratchet wheel and the second end face ratchet wheel is positive integer multiple of 4, and the number of the ratchet teeth of the first end face ratchet wheel and the second end face ratchet wheel is 16-24 teeth.

Preferably, a hexagonal prism-shaped cavity is arranged in the hollow rotating shaft.

Compared with the prior art, the utility model has the advantages that:

according to the utility model, the device is arranged on a hexagonal prism type driving shaft at a seed outlet of a seeder, so that the hexagonal prism type driving shaft penetrates through the hollow rotating shaft, and a land wheel is in transmission connection with a clutch sprocket through a chain.

Drawings

FIG. 1 is a schematic view of the overall structure of a one-way clutch of a planter in accordance with the present utility model;

FIG. 2 is a schematic structural view of a clutch sprocket;

FIG. 3 is a schematic diagram of a connection structure of the second end ratchet and the spring;

FIG. 4 is a schematic structural view of a hollow shaft;

fig. 5 is a schematic structural view of the mounting case.

The reference numerals in the figures illustrate:

1. a clutch sprocket; 2. a mounting shell; 3. a first end face ratchet; 4. a hollow rotating shaft; 5. a second end ratchet; 6. a spring; 7. a limit ring; 8. a clamping groove; 9. opening a clamp spring; 401. a chute; 501. a slide hole; 201. a ring-shaped mounting groove; 202. a planar bearing; 402. hexagonal prism type cavity.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model; it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present utility model are within the protection scope of the present utility model.

Examples:

referring to fig. 1 to 5, a one-way clutch of a seeding machine includes a clutch sprocket 1 and a mounting case 2, wherein the clutch sprocket 1 is rotatably connected to one side of the mounting case 2, and is characterized in that: a first end face ratchet wheel 3 is concentrically fixed on one side of the clutch sprocket 1, which is close to the mounting shell 2, a through hole is arranged in the mounting shell 2, a hollow rotating shaft 4 is rotationally connected in the through hole through a first bearing, a second end face ratchet wheel 5 is slidingly connected on the hollow rotating shaft 4 along the length direction of the hollow rotating shaft, the second end face ratchet wheel 5 is matched with the first end face ratchet wheel 3, a spring 6 is fixed on one side of the second end face ratchet wheel 5, which is far away from the first end face ratchet wheel 3, a limit ring 7 is fixed on one side of the spring 6, the limit ring 7 is slidingly connected in the mounting shell 2, the central position of the clutch sprocket 1 is rotationally connected on the hollow rotating shaft 4 through a second bearing, clamping grooves 8 are respectively formed in two ends of the hollow rotating shaft 4, and two groups of opening clamping springs 9 are respectively attached to the clutch sprocket 1 and the mounting shell 2;

the device is arranged on a hexagonal prism type driving shaft at a seed outlet of a seeder, the hexagonal prism type driving shaft penetrates through a hollow rotating shaft 4, a land wheel is in transmission connection with a clutch sprocket 1 through a chain, when the land wheel rotates normally, the clutch ratchet 1 is driven to rotate through the chain, the clutch ratchet 1 drives the hollow rotating shaft 4 and the hexagonal prism type driving shaft in the hollow rotating shaft through a first end face ratchet 3 and a second end face ratchet 5, thereby driving a shifting sheet on the hexagonal prism type driving shaft to convey seeds in a seed storage box into a seeding pipe, when the land wheel rotates reversely, the first end face ratchet 3 utilizes ratchets on the first end face ratchet to extrude the second end face ratchet 5, a spring 6 contracts, the hollow rotating shaft 4 does not rotate along with the land wheel at this time, ratchet transmission is adopted, the land wheel drives the hollow rotating shaft 4 to rotate when non-operation (such as reversing adjustment direction) can be avoided, compared with a transmitted clutch, a transmission mode is simple, reliable and stable, the quantity of ratchets on the ratchet is customized according to the quantity of shifting sheets, and the use is more flexible.

In this embodiment, a sliding groove 401 is formed in the hollow rotating shaft 4 along the length direction thereof, a sliding hole 501 is formed in the axial center position of the second end face ratchet wheel 5, a sliding block 502 is fixed in the sliding hole 501 corresponding to the sliding groove 401, one end of a spring 6 is axially fixed on the second end face ratchet wheel 5, and the spring 6 is sleeved on the hollow rotating shaft 4; by means of the design of the sliding groove 401, the second end face ratchet wheel 5 can be guaranteed to slide along the hollow rotating shaft 4 all the time in the use process, and the second end face ratchet wheel 5 is prevented from rotating relative to the hollow rotating shaft 4.

In the embodiment, a ring-shaped mounting groove 201 is formed in the mounting shell 2 at a position corresponding to the hollow rotating shaft 4, a plane bearing 202 is arranged in the ring-shaped mounting groove 201, and a limit ring 7 is inserted into the ring-shaped mounting groove 201 and is connected to the plane bearing 202 in a sliding manner; due to the design of the plane bearing 202, when the hollow rotating shaft 4 rotates relative to the mounting shell 2, the friction force between the limit ring 7 and the mounting shell 2 can be reduced through the plane bearing 202, so that the hollow rotating shaft 4 rotates more stably.

In the present embodiment, the sliding grooves 401 are provided with two groups; due to the design of the two groups of sliding grooves 401, the two groups of sliding grooves 401 enable the hollow rotating shaft 4 and the second end face ratchet wheel 5 to be stressed more reasonably, and shaking in the using process is reduced.

In the embodiment, the number of the ratchets of the first end face ratchet wheel 3 and the second end face ratchet wheel 5 is positive integer multiple of 4, and the number of the ratchets of the first end face ratchet wheel 3 and the second end face ratchet wheel 5 is 16-24 teeth; the first end face ratchet wheel 3 and the second end face ratchet wheel 5 are designed, so that the first end face ratchet wheel 3 and the second end face ratchet wheel 5 can be locked by small displacement of the land wheel, the formation is shorter, and the running is smoother.

In the present embodiment, a hexagonal prism-shaped cavity 402 is provided in the hollow rotating shaft 4; the external hexagonal prism-shaped driving shaft can be directly inserted into the prism-shaped cavity 402 in the hollow rotating shaft 4 for connection, and the operation is simple and convenient.

The working process of the utility model is as follows:

the operator can install the device on the hexagonal prism type drive shaft of the play kind mouth department of seeder, make hexagonal prism type drive shaft pass hollow pivot 4, and pass through the chain with the land wheel and be connected with clutch sprocket 1 transmission, when the land wheel normally rotates, drive clutch ratchet 1 through the chain and rotate, clutch ratchet 1 drives hollow pivot 4 and its interior hexagonal prism type drive shaft rotation through first terminal surface ratchet 3 and second terminal surface ratchet 5, thereby drive the plectrum on the hexagonal prism type drive shaft and will deposit the seed in the seed case and carry into the seeding pipe, and when the land wheel counter-rotating, first terminal surface ratchet 3 utilizes ratchet on it to extrude second terminal surface ratchet 5, spring 6 shrink, hollow pivot 4 is not rotated at this moment with the land wheel, adopt ratchet transmission, when can avoid non-operation (like the adjustment direction of backing), the land wheel drives hollow pivot 4 rotation, compared with the clutch of transmission, the transmission mode is simple reliable stable, can customize ratchet quantity on the ratchet according to the quantity of plectrum, use more nimble.

The above description is only of the preferred embodiments of the present utility model; the scope of the utility model is not limited in this respect. Any person skilled in the art, within the technical scope of the present disclosure, may apply to the present utility model, and the technical solution and the improvement thereof are all covered by the protection scope of the present utility model.

Claims (6)

1. The utility model provides a one-way clutch of seeder, includes clutch sprocket (1) and installation shell (2), clutch sprocket (1) rotate to be connected in one side of installation shell (2), its characterized in that: the clutch sprocket (1) is close to one side of installation shell (2) and is concentric to be fixed with first end ratchet (3), be provided with the through-hole in installation shell (2), be connected with hollow pivot (4) through first bearing rotation in the through-hole, be provided with second end ratchet (5) along its length direction sliding connection on hollow pivot (4), second end ratchet (5) and first end ratchet (3) cooperation setting, and one side that first end ratchet (3) was kept away from to second end ratchet (5) is fixed with spring (6), one side of spring (6) is fixed with spacing collar (7), in spacing collar (7) sliding connection installation shell (2), the central point of clutch sprocket (1) is put through second bearing rotation and is connected on hollow pivot (4), and draw-in groove (8) have been seted up respectively at the both ends of hollow pivot (4), be provided with opening jump ring (9) in draw-in groove (8), two sets of opening (9) laminating with clutch sprocket (1) and installation shell (2) respectively.

2. A one-way clutch of a planter as claimed in claim 1, wherein: sliding grooves (401) are formed in the hollow rotating shaft (4) along the length direction of the hollow rotating shaft, sliding holes (501) are formed in the shaft center positions of the second end face ratchet wheels (5), sliding blocks (502) are fixed in the sliding holes (501) corresponding to the sliding grooves (401), one ends of the springs (6) are axially fixed to the second end face ratchet wheels (5), and the springs (6) are sleeved on the hollow rotating shaft (4).

3. A one-way clutch of a planter as claimed in claim 2, wherein: annular mounting grooves (201) are formed in the mounting shell (2) at positions corresponding to the hollow rotating shafts (4), planar bearings (202) are arranged in the annular mounting grooves (201), and the limiting rings (7) are inserted into the annular mounting grooves (201) and are connected to the planar bearings (202) in a sliding mode.

4. A one-way clutch of a planter as claimed in claim 2, wherein: the sliding grooves (401) are provided with two groups.

5. A one-way clutch of a planter as claimed in claim 1, wherein: the number of the ratchets of the first end face ratchet wheel (3) and the second end face ratchet wheel (5) is a positive integer multiple of 4, and the number of the ratchets of the first end face ratchet wheel (3) and the second end face ratchet wheel (5) is 16-24 teeth.

6. A one-way clutch of a planter as claimed in claim 1, wherein: a hexagonal prism-shaped cavity (402) is arranged in the hollow rotating shaft (4).