A safety clutch, a corn header gearbox, and a harvester

Abstract

The invention provides a safety clutch. The safety clutch comprises a header operation mechanism (31), a header box body (32) connected with the header operation mechanism (31), a transmission part (33) arranged in the header box body (32) as well as a driving shaft (34), a driven connection block (35), a driving connection block (36) and a spring (37) which are connected with an external driving device, wherein an output end of the transmission part (33) can drive the header operation mechanism (31) to operate; the driven connection block (35) is fixed with an input end of the transmission part (33); the driving connection block (36) is in movable sleeve connection with the driving shaft (34); a baffle is arranged on the driving shaft (34), one end of the spring (37) is in propping connection with the baffle, and the other end of the spring (37) is in propping connection with the driving connection block (36) and can enable the driving connection block (36) to be attached to the driven connection block (35). The invention further provides a corn header gearbox and a harvester.

Description

technical field [0001] The invention relates to the field of agricultural machinery, in particular to a safety clutch, a corn header gearbox and a harvester. Background technique [0002] The self-propelled corn harvester mainly includes a header device, a lifting device, a peeling device, etc. The header of the harvester is mainly composed of a header body, a gear box, an ear rack, a pulling chain, a header guard, and a stem puller. The header is mainly used to pick corn ears. Its power is transmitted to the gearbox of the header through the engine arranged behind it, and then the gear box drives the pull chain and stem puller to complete the work. The ear of corn is picked, so the gearbox is the core part of the header work. [0003] When the header is harvesting corn, it will encounter corn stalks, debris, etc. accumulated on the header and block it, resulting in an increase in the load of the header. If the power is not separated in time at this time, the inner box of t...

AI Technical Summary

Problems solved by technology

[0003] When the header is harvesting corn, it will encounter corn stalks, debris, etc. accumulated on the header and block it, resulting in an increase in the load of the header. If the power is not separated in time at this time, the inner box of the gearbox will The damage of the gear box, such as broken teeth of the gear, the rolling key of the keyway, and the breakage of the gear shaft, etc. Corn harvesting is a job during the rush to the farm. Once the gearbox is replaced or repaired, it will be labor-intensive and time-consuming, which will affect the income of the corn machine user.

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