CN211240814U - Seed metering power clutch device based on traction-type no-tillage planter - Google Patents

Abstract

A seed-metering power clutch device based on a traction-type no-tillage seeder belongs to agricultural machinery; a driving jaw and a driven jaw are installed at the joint of a ground wheel transmission shaft, the driving jaw is matched with a clutch outer sleeve through a shaft sleeve, one end of the clutch outer sleeve is provided with an annular boss, the other end of the clutch outer sleeve is uniformly provided with three long grooves which are matched with a guide sleeve, a return spring is installed inside the guide sleeve, the outer circumference of the guide sleeve is welded with a connecting rod, the connecting rod is fastened on a ground wheel support arm, one end of the driven jaw is jointed with the driving jaw, the other end of the driven jaw is axially limited by a deep groove ball bearing fixedly connected on a support plate, a joint bearing is fixedly installed; the seed-metering power clutch device controls the connection and the separation of the clutch jaw through the lifting of the land wheel support arm, and has the advantages of no change of the integral gravity center position of the machine tool, little influence from the working environment, convenient operation, safe and reliable use and the like.

Description

Seed metering power clutch device based on traction-type no-tillage planter

Technical Field

The utility model belongs to agricultural machinery, and mainly relates to a seed metering power clutch device based on a traction-type no-tillage planter.

Background

In recent years, protective farming techniques are developed rapidly, and no-tillage seeding techniques are popularized and applied in a wide range. The no-tillage seeder can be divided into two types of suspension and traction type according to the mode of articulating, and the during operation generally uses the land wheel and provides seed metering power, nevertheless need cut off power in order to avoid wrong seed metering when transportation and land head turn, and wherein suspension type seeder makes the land wheel liftoff cut off seed metering power through promoting the organism when transportation and land head turn, and traction type seeder mainly adopts following two kinds of modes: one method is that the seed sowing is stopped by lifting a driving wheel which is added independently of the no-tillage planter off the ground through a hydraulic device, at the moment, a land wheel is not used for driving, the complexity of a driving structure is increased by the method, the distance between a single body and the driving wheel is limited by additionally arranging the driving wheel among seeding single bodies, stubbles are easy to block the single bodies, the implementation of the seeding operation is influenced, and meanwhile, the power consumption of a tractor is increased to a certain extent; the other mode is that an electromagnetic clutch device is additionally arranged on a transmission mechanism, the mode needs to provide electric support for the clutch through a tractor power supply, the no-tillage seeding operation environment is complex, dust and vibration are large, and the performance of the electromagnetic clutch is easily influenced by the working environment.

Disclosure of Invention

The utility model aims at solving the problems existing in the prior art, designing a seed metering power clutch device based on a traction-type no-tillage planter, completing the connection and separation of the seed metering power of the traction-type no-tillage planter through mechanical linkage, and having simple operation, high reliability and low cost.

The utility model discloses a basic design is: a driving jaw and a driven jaw are arranged at the joint of the land wheel transmission shaft, the driving jaw is matched with the clutch outer sleeve through a shaft sleeve, one end of the clutch outer sleeve is provided with an annular boss, a transition inclined plane is arranged between the boss and the plane, three long grooves are uniformly distributed at the other end, matched with the guide sleeve, a return spring is arranged in the guide sleeve, a connecting rod is welded on the outer circumference of the guide sleeve, the connecting rod is fastened on the ground wheel support arm, one end of the driven jaw is jointed with the driving jaw, the other end is axially limited by a deep groove ball bearing fixedly connected on the support plate, the supporting plate is fixedly provided with a joint bearing which keeps tangential contact with the annular end surface of the clutch outer sleeve, the support plate is fixed on a frame auxiliary beam of the straw clearing device through a clamp, and a transmission chain wheel is installed at the right end of the deep groove ball bearing, so that the seed sowing power clutch device based on the traction type no-tillage seeding machine is formed.

The utility model discloses a connecting rod changes the lift of towed no-tillage seeder land wheel support arm into the rotation of separation and reunion overcoat, makes laminating bearing control the joint and the separation of separation and reunion jaw along the terminal surface boss motion of separation and reunion overcoat to whether the function of seed metering is realized controlling. The device adopts pure mechanical linkage control, is not limited by a hydraulic system and a circuit system, and has the characteristics of no change of the integral gravity center position of the machine tool, little influence of the working environment, convenient operation, and safe and reliable use.

Drawings

FIG. 1 is a front view of a traction type no-tillage planter;

FIG. 2 is an isometric view of a traction type no-tillage planter;

FIG. 3 is an isometric view of the ground wheel portion;

FIG. 4 is a front view of the power clutch device for seed metering;

FIG. 5 is a sectional view of the power clutch device for seed metering.

Description of part numbers in the figures:

1. the device comprises a ground wheel assembly, 2, a seeding unit, 3, a fertilizer box assembly, 4, a straw clearing device, 5, a traction device, 6, a seed sowing power clutch device, 7, a hydraulic cylinder, 8, a ground wheel support arm, 9, a connecting rod, 10, a guide sleeve, 11, a return spring, 12, a clutch outer sleeve, 13, a driving jaw, 14, a driven jaw, 15, a clamp, 16, a support plate, 17, a transmission chain wheel, 18, a joint bearing, 19, a deep groove ball bearing, 20 and a shaft sleeve.

Detailed Description

The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. A seed sowing power clutch device based on a traction-type no-tillage planter is characterized in that a driving jaw (13) and a driven jaw (14) are installed at the joint of a land wheel transmission shaft, the driving jaw (13) is matched with a clutch outer sleeve (12) through a shaft sleeve (20), an annular boss is arranged at one end of the clutch outer sleeve (12), a transition inclined plane is arranged between the boss and the plane, three long grooves are uniformly distributed at the other end of the boss and matched with a guide sleeve (10), a return spring (11) is installed inside the guide sleeve (10), a connecting rod (9) is welded on the outer circumference of the guide sleeve (10), the connecting rod (9) is fastened on a land wheel support arm (8), one end of the driven jaw (14) is jointed with the driving jaw (13), the other end of the driven jaw is axially limited by a deep groove ball bearing (19) fixedly connected on a support plate (16), a joint bearing (18) is fixedly installed on the support plate (16), and the joint bearing (18, the support plate (16) is fixed on a rack auxiliary beam of the straw cleaning device (4) through a clamp (15), and a transmission chain wheel (17) is installed at the right end of the deep groove ball bearing (19).

Before operation, firstly, the land wheel (1) is adjusted to determine the sowing depth, during operation, the tractor drives the no-tillage sowing machine to advance through the traction device (5), the straw cleaning device (4) throws out the residual stubbles laterally in the advancing process to arrange a clean seed bed suitable for sowing, the land wheel (1) transmits power to the sowing single body (2) and the fertilizer box portion (3) through the transmission mechanism and the seed sowing power clutch device (6) arranged on the transmission mechanism, the attaching bearing (18) is positioned on the plane of the lower portion of the end surface boss of the clutch outer sleeve (12), the driving jaw (13) and the driven jaw (14) are in a joint state, and the power is transmitted to the transmission system of the no-tillage sowing machine through the transmission chain wheel (17).

When in transportation and turning at the ground, a driver controls the land wheel hydraulic cylinder (7) to extend, so that the straw cleaning device (4) is lifted relative to the land wheel (1), the land wheel support arm (8) swings anticlockwise and enables the guide sleeve (10) to rotate in the same direction through the connecting rod (9), the guide sleeve (10) drives the clutch outer sleeve (12) to rotate through the three uniformly distributed elongated slots, because the laminating bearing (18) is fixedly arranged on the supporting plate (16), the supporting plate (16) is fixed on a frame secondary beam of the straw cleaning device (4) through the fixture (15), at the moment, the laminating bearing (18) moves to the boss along the transition inclined plane of the end surface of the clutch outer sleeve (12) to force the reset spring (11) to be compressed, the clutch outer sleeve (12) and the shaft sleeve (20) drive the driving jaw (13) to be separated from the driven jaw (14), so that the transmission chain wheel (17) is in unpowered transmission to a no-tillage seeder transmission system, and power is cut off.

Claims (1)

1. The utility model provides a seed metering power clutch based on towed no-tillage seeder which characterized in that: a driving jaw (13) and a driven jaw (14) are arranged at the joint of a ground wheel transmission shaft, the driving jaw (13) is matched with a clutch outer sleeve (12) through a shaft sleeve (20), an annular boss is arranged at one end of the clutch outer sleeve (12), a transition inclined plane is arranged between the boss and the plane, three long grooves are uniformly distributed at the other end of the clutch outer sleeve and matched with a guide sleeve (10), a reset spring (11) is arranged in the guide sleeve (10), a connecting rod (9) is welded at the outer circumference of the guide sleeve, the connecting rod (9) is fastened on a ground wheel supporting arm (8), one end of the driven jaw (14) is jointed with the driving jaw (13), the other end of the driven jaw is axially limited by a deep groove (19) fixedly connected on a supporting plate (16), a joint bearing (18) is fixedly arranged on the supporting plate (16), and the joint bearing (18) keeps tangential contact with the annular, the support plate (16) is fixed on a rack auxiliary beam of the straw cleaning device (4) through a clamp (15), and a transmission chain wheel (17) is installed at the right end of the deep groove ball bearing (19).

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