# US 9,775,275 B2 · Agricultural rotary tillage machine

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- Number: US 9,775,275 B2
- Document ID: US9775275B2
- Status: Granted
- Kind: B2
- Application number: 15/035,501
- Filed: 2015-12-10
- Published: 2017-04-27
- Granted: 2017-10-03
- Earliest claimed: 2015-04-22
- Assignees: Agricultural University of Hebei; Hebei Zhongnongboyuan Agricultural Equipment Co., Ltd.
- Applicants: Agricultural University of Hebei; Hebei Zhongnongboyuan Agricultural Equipment Co., Ltd
- Inventors: Jinggang Yi; Guobin Zhang; Baojian Cui; Yazhou Xing; Honglei Wu; Yongwei Yuan; Yanjie Bai
- Web page: https://patentgrep.com/patent/US9775275B2

## CPC

- A01B 33/021: {with rigid tools}
- A01B 33/028: {of the walk-behind type (walk-type tractors B62D51/04)}
- A01B 49/022: {at least one tool being actively driven}
- A01B 49/027: {with a rotating, soil working support element, e.g. a roller}
- A01B 79/005: {Precision agriculture}
- A01B: SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL (making or covering furrows or holes for sowing, planting or manuring A01C5/00; mowers convertible to soil working apparatus or capable of soil working A01D42/04; mowers combined with soil working implements A01D43/12; soil working for engineering purposes E01, E02, E21)

## Abstract

A facility agricultural laser measure and control motor rotary tillage flattening machine includes a front axle part, a lifting equipment, a rotary tillage component, a battery pack, a rear axle steering part, a rotary flattening component and a rack. A front axle housing connects with the rack. The rotary tillage component comprises a DC motor, a gearbox and a rotary tillage blade. The DC motor connects with the gearbox through transmission. An output shaft of the gearbox connects with the rotary tillage blade. The rear axle steering part includes a rotary seat, a rotary shaft, a steering handlebar, a rear axle stand and squirrel-cage hubs. An upper end of the rotary shaft is equipped with a steering handlebar. The rear axle stand is equipped with two squirrel-cage hubs through a supporting axle. The rotary flattening component connects with the rack through an electromotive handspike and a flexible torsion bar.

## Claims

### Claim 1

An agricultural machine, comprising a front axle part including a first DC motor connected with driving wheels on left and right sides through a differential transmission system mounted inside a front axle housing, lifting equipment, a rotary tillage component, a battery pack, a rear axle steering part, a flattening component and a rack; wherein the front axle housing of the front axle part is connected with the rack through the lifting equipment; the rotary tillage component comprises a second DC motor and a gearbox which are connected with each other through a transmission of a chain, and a rotary tillage blade; an output shaft of the gearbox is connected with the rotary tillage blade; the rotary tillage component is mounted at the front of the rack fixedly through the gearbox; the rear axle steering part includes a rotary seat, a rotary shaft, a steering handlebar, a rear axle stand and two squirrel-cage hubs; the rotary seat is connected fixedly with the rack; the rotary shaft is mounted on the rotary seat; an upper end of the rotary shaft is equipped with the steering handlebar; a lower end of the rotary shaft is connected with the rear axle stand; the rear axle stand is equipped with the squirrel-cage hubs through a supporting axle; the flattening component is connected with the rack through a first electric actuator and a flexible torsion bar; the battery pack is located on the rack arranged in the front and back of the rotary tillage component.

### Claim 2 (depends on 1)

The agricultural machine of claim 1, wherein the lifting equipment comprises a crank rocker arm and a second electric actuator; a lower end of the crank rocker arm is connected with the front axle part through a U-shape connector; a middle portion of the crank rocker arm is hinged with the rack; an upper end of the crank rocker arm is hinged with the second electric actuator through a pin; a pedestal of the second electric actuator is hinged on the rack.

### Claim 3 (depends on 1)

The agricultural machine of claim 1, wherein the flattening component includes a scraper, a blade connector and a laser receiver; an upper side of the scraper is hinged with a lower end of the first electric actuator through the blade connector; a pedestal of the first electric actuator is hinged on the rack; one end of the flexible torsion bar is connected with the blade connector through a connecting sleeve; the other end of the flexible torsion bar is hinged on the rack through a connector; the laser receiver is mounted on the blade connector through a supporting rod.