Loosening device for hardened soil formed during wheat sowing

Abstract

The invention provides a loosening device for hardened soil formed during wheat sowing, aiming to reduce production cost and improve working efficiency. The loosening device comprises supports, adjusting members and a loosening member. Each support comprises a cross beam and a sleeve, and the sleeves are welded at the rear ends of the cross beams. Each adjusting mechanism comprises an upper pin, a compression spring, a middle pin, an upper spring column, a lower pin and a lower spring column, the upper portions of the compression springs are sleeved on the upper spring columns, and the lower portions of the compression springs are sleeved on the lower spring columns. The upper pins are inserted at the upper ends of the upper spring columns and are positioned above the sleeves. The middle pins are inserted on the lower portions of the upper spring columns and cling to the upper ends of the compression springs. The lower pins are inserted on the middle-lower portions of the lower spring columns. The loosening member comprises a front transverse plate, a rear transverse plate, round bar steel, three longitudinal plates and a plurality of loosening claws. The upper ends of the lower spring columns are welded with the front transverse plate, and each loosening claw is of a pair of bent rebars. One end of each loosening claw is welded on the front transverse plate while the other end of the same is welded on the rear transverse plate. The loosening claws are welded on the front transverse plate and the rear transverse plate. The left end, the middle and the right end of the round bar steel are welded with the longitudinal plates respectively.

Description

technical field [0001] The invention relates to a hardening and loosening device for wheat sowing. Background technique [0002] Before the 1990s, the pre-sowing, sowing, and post-sowing suppression of wheat in my country were mostly carried out step by step. In the mid-to-late 1990s, with the emergence of the rotary tillage, sowing and suppression integrated machine, the sowing of wheat has transitioned from the previous step-by-step single implementation to the compound operation, that is, rotary tillage (soil preparation before sowing), sowing and post-sowing suppression are completed at one time. The earth improves the operation efficiency and reduces the production cost of the wheat field, which is welcomed by the majority of farmers. However, judging from the sowing and emergence effects of the wheat rotary tillage, sowing and suppression integrated machine in recent years, it is found that there are problems such as low seedling emergence rate or delayed seedling eme...

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