CN-224205703-U - Automatic row spacing adjusting device of pneumatic high-speed corn precision planter

CN224205703UCN 224205703 UCN224205703 UCN 224205703UCN-224205703-U

Abstract

The utility model discloses a row spacing automatic adjusting device of a pneumatic high-speed corn precision seeder, which relates to the technical field of seeding in agricultural machinery and comprises a seeder frame, a fertilizing furrow opener, a U-shaped bolt, a sliding beam, a motor, a gear rack structure, an electromagnetic brake, rollers and a connecting plate, wherein the fertilizing furrow opener is vertically fixed at the front end of the sliding beam through the U-shaped bolt and is kept parallel to the central line of the sliding beam, the rollers are fixed on the upper end surface, the lower end surface and the side end surface of the sliding beam, the motor is fixed on the upper end surface of the sliding beam and is connected with the gear through a motor shaft, the electromagnetic brake is fixed between the motor and the gear, the heights of the transverse beams at the two sides of the seeder frame are different, the racks are welded on the transverse beam at one side with the lower height of the seeder frame and are meshed with the gear, and the connecting plate is fixed at the rear end of the sliding beam.

Inventors

CAO ZHIXING
WANG JIAZHONG
GE JINGGANG
Kang Weiye
XING JIALE

Assignees

河北农业大学

Dates

Publication Date: 20260508
Application Date: 20250610

Claims (1)

1. The automatic row spacing adjusting device of the pneumatic high-speed corn precision planter is characterized by comprising a planter frame, a fertilizing furrow opener, a U-shaped bolt, a sliding cross beam, a motor, a gear rack structure, an electromagnetic brake, rollers and a connecting plate, wherein the fertilizing furrow opener is vertically fixed at the front end of the sliding cross beam through the U-shaped bolt and is parallel to the central line of the sliding cross beam, the rollers are fixed on the upper end face, the lower end face and the side end face of the sliding cross beam, the motor is fixed on the upper end face of the sliding cross beam and is connected with the gear through a motor shaft, the electromagnetic brake is fixed between the motor and the gear, the cross beams at two sides of the planter frame are different in height, the racks are welded on the cross beam at one side with the lower height of the planter frame and are meshed with the gear, and the connecting plate is fixed at the rear end of the sliding cross beam.

Description

Automatic row spacing adjusting device of pneumatic high-speed corn precision planter Technical Field The utility model belongs to the field of agricultural machinery, and relates to a row spacing automatic adjusting device of a pneumatic high-speed corn precision planter. Background In recent years, the agricultural production in China is accelerated to change to an intensive direction, and the high-standard farmland scale is gradually enlarged. So the requirements for agricultural machinery are getting higher and higher. Aiming at sowing machinery, the development trend of the current corn sowing machine is in the directions of high speed, precision, electric control and the like, and the purpose is to sow a larger area in unit time rapidly and efficiently. According to agronomic requirements, different corn varieties and different areas have different line spacing requirements, so the line spacing adjustment process for the corn planter before sowing is very important. The row spacing adjustment of the traditional corn planter still requires manual operation, has low efficiency and is difficult to meet the requirements of precision sowing and quick sowing. And the line spacing requirements for corn planting in various places are different, and a novel planting mode (such as wide and narrow line planting) appears, so that each sowing monomer of the corn planter is required to be accurately and flexibly adjusted. In the prior art, a Chinese patent with the name of 'a row spacing adjusting device of a multi-row seeder' is disclosed, the name is CN 117598075A, the publication date is 2024.02.27, the Chinese patent comprises a machine base and four seat bodies which are arranged on the machine base and are used for installing ditching and sowing mechanisms, an adjusting mechanism used for changing the spacing between the seat bodies is further arranged on the machine base, the adjusting mechanism comprises a motor, a first driving gear and racks which are connected with the seat bodies, a second seat body is a reference seat body, other seat bodies can move in a translational mode relative to the reference seat body, first movable racks are respectively fixed on the first seat body and the third seat body, the two first movable racks are respectively arranged on the two sides of the center of the first driving gear and are meshed with the first driving gear, the adjusting mechanism further comprises a driven gear which can move along with the first movable racks corresponding to the third seat body, the two sides of the center of the driven gear are respectively provided with a first fixed rack meshed with the second movable rack, and the second movable rack is connected with the fourth seat body. The device adopts a motor to change the row spacing of four seeding monomers, but the structure is comparatively complicated, and the device adjusts the row spacing and is four seeding monomers synchronous movement, and is different to the agronomic requirements in each place, like wide and narrow row planting mode etc. can't adjust. Therefore, the automatic row spacing adjusting device of the pneumatic corn precision planter is provided for overcoming the defects. Disclosure of Invention The utility model aims to provide a row spacing automatic regulating device of a pneumatic high-speed corn precision seeder, which can automatically regulate the row spacing according to agronomic requirements before seeding, reduces the time for regulating the row spacing, and is beneficial to quickly regulating the row spacing requirements of various places and the wide and narrow rows of corn in a new planting mode at present. In order to achieve the above purpose, the present utility model adopts the following technical scheme: The automatic row spacing adjusting device of the pneumatic high-speed corn precision planter comprises a planter frame, a fertilizing furrow opener, U-shaped bolts, a sliding cross beam, a motor, a gear rack structure, an electromagnetic brake, rollers and a connecting plate, wherein the fertilizing furrow opener is vertically fixed at the front end of the sliding cross beam through the U-shaped bolts and is parallel to the central line of the sliding cross beam, the rollers are fixed on the upper end face, the lower end face and the side end face of the sliding cross beam, the motor is fixed on the upper end face of the sliding cross beam and is connected with the gear through a motor shaft, the electromagnetic brake is fixed between the motor and the gear, the heights of the cross beams at the two sides of the planter frame are different, the racks are welded on the cross beam at one side with the lower height of the planter frame and are meshed with the gear, and the connecting plate is fixed at the rear end of the sliding cross beam. The utility model has the beneficial effects that in the utility model, the motor is adopted to drive the gear-rack structure and the self-locking is carried out throug