Shifting fork type mechanism for stopping transplanting in backward movement and rice transplanter

Abstract

The invention discloses a shifting fork type mechanism for stopping transplanting in backward movement. The shifting fork type mechanism comprises a shifting fork component, a rice transplanting powerinput shaft, a rice transplanting input gear, a clutch and a spring. The shifting fork component is connected with a gear change hand lever, the rice transplanting power input shaft is connected witha rice transplanting mechanism, the rice transplanting input gear is connected with an advancing portion gear, and the rice transplanting input gear, the clutch and the spring sequentially sleeve therice transplanting power input shaft. The rice transplanting input gear is in clearance sleeve connection with the rice transplanting power input shaft, and the clutch and the rice transplanting power input shaft are in transmission connection and slide fit. The rice transplanting power input shaft is provided with a limiting portion, the rice transplanting input gear is positioned between the limiting portion and the clutch, ends of the rice transplanting input gear and the clutch are provided with matched meshed teeth, two ends of the spring are abutted against the clutch and a gearbox respectively, the clutch is provided with a shifting portion, and the shifting fork component is positioned between the shifting portion and the rice transplanting input gear. The invention further discloses a rice transplanter with the shifting fork type mechanism for stopping transplanting in backward movement. The rice transplanter and the shifting fork type mechanism for stopping transplanting inbackward movement have advantages of low fault rate and high reliability.

Description

technical field [0001] The invention relates to the field of agricultural machinery, in particular to a fork-type reversing non-transplanting mechanism and a rice transplanter. Background technique [0002] The rice transplanter is a kind of agricultural machinery for implanting rice seedlings into the rice field. The rice transplanter includes a traveling part and a rice transplanting part. The rice transplanting part is connected to the rear end of the traveling part. The traveling part drives the transplanting part to move. During the working process, when the traveling part drives the rice transplanting part forward, the rice transplanting part performs rice transplanting, and when the traveling part drives the rice transplanting part backwards, the rice transplanting part stops working and does not perform rice transplanting. In order to achieve this purpose, the existing rice transplanter uses a one-way clutch bearing Connect the traveling power output shaft and the ri...

AI Technical Summary

Problems solved by technology

[0002] The rice transplanter is a kind of agricultural machinery for implanting rice seedlings into the rice field. The rice transplanter includes a traveling part and a rice transplanting part. The rice transplanting part is connected to the rear end of the traveling part. The traveling part drives the transplanting part to move. During the working process, when the traveling part drives the rice transplanting part forward, the rice transplanting part performs rice transplanting, and when the traveling part drives the rice transplanting part backwards, the rice transplanting part stops working and does not perform rice transplanting. In order to achieve this purpose, the existing rice transplanter uses a one-way clutch bearing Connect the traveling power output shaft and the rice transplanting power input shaft, so that when the traveling part moves forward, the power output by the traveling power output shaft can be transmitted to the rice transplanting power input shaft through the one-way clutch bearing to provide power for the rice transplanting part to perform rice transplanting. When the traveling part is reversed, The one-way clutch bearing is idling, and the power of the traveling power output shaft cannot be transmitted to the rice planting power input shaft through the one-way clutch bearing, and there is no power input to the rice planting part

[0003] The method of using the one-way clutch bearing to connect the driving power output shaft and the rice transplanting power input shaft mainly has the following problems: First, after the gearbox is used for a long time, the internal oil becomes dirty and there are impurities in the oil, which will affect the one-way clutch bearing Rotation, the one-way clutch bearing will produce poor rotation such as insufficient locking force of the ball or slipping; second, when the engine rotates at high speed, the forward and reverse switching is frequent, and frequent switching will cause the one-way clutch to heat up and cause sintering and other failures; It is to cut off the power of the rice transplanting part and ensure that the rice transplanting part does not transplant rice seedlings when the whole machine is reversed. The one-way clutch bearings are all assembled inside the gearbox. When the one-way clutch bearings with limited bearing capacity fail, the workload of replacement and maintenance will be large.

[0004] The existing one-way clutch bearing is used to connect the traveling power output shaft and the rice transplanting power input shaft to ensure that the rice transplanter is reversed without planting rice. inconvenient

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