Search

CN-224205670-U - Layered curved surface forming non-uniform cultivation rotary tillage assembly

CN224205670UCN 224205670 UCN224205670 UCN 224205670UCN-224205670-U

Abstract

The utility model discloses a layer-by-layer curved surface forming non-uniform cultivation rotary tillage assembly, which comprises a driving belt wheel, rotary tillage blades, a drill bit, rotary tillage blade supports, a roll shaft and a support shaft neck, wherein the rotary tillage blade supports are arranged on the circumferential outer surface of the roll shaft, the length of the rotary tillage blades gradually decreases from the driving belt wheel end to the drill bit layer by layer, and a section of a rotary body shaft formed by rotation of the rotary tillage blades and the drill bit is a concave groove with a reversed parabolic section, so that non-uniform cultivation of a field is realized. The multi-layer vertical rotary tillage blade has the beneficial effects that the multi-layer vertical rotary tillage blade with decreasing length only cultivates crop planting rows, the rotary tillage is not carried out on two sides of the planting rows, solid soil layers are reserved, non-uniform cultivation with no cultivation layers and cultivation layer intervals integrally formed after rotary tillage in a field is realized, compared with the traditional horizontal and vertical integrated rotary tillage, the energy consumption is greatly reduced, when the rainfall in the growing period of crops occurs, the dredged and permeated rainwater is collected at the root of the crops along the solid no-cultivation layer walls, the crop growth is promoted, the rainwater utilization rate can be effectively improved compared with the integrated rotary tillage, and the yield increase of crops in a drought region is facilitated.

Inventors

  • HOU JUNCAI
  • TANG XINQI
  • HE GUILIN
  • ZHANG FAN

Assignees

  • 西北农林科技大学

Dates

Publication Date
20260508
Application Date
20250610

Claims (5)

  1. 1. A layer-transfer type curved surface forming non-uniform cultivation rotary tillage assembly is characterized by comprising a driving belt wheel (1), rotary tillage blades (2), a drill bit (3), a rotary tillage blade support (4), a roll shaft (5) and a support shaft neck (6), wherein the length of each rotary tillage blade (2) is gradually decreased from top to bottom, the gradually decreasing gradient is about 3 cm to 5cm per 10cm of roll shaft height, a concave groove with a reverse parabolic section is formed in an underground rotary tillage layer after cultivation, the depth of the groove bottom is 15 cm to 40cm, the longest blade at the top of each rotary tillage blade (2) is 20 cm to 30cm, and the shortest blade at the bottom is 5cm to 10cm.
  2. 2. The laminated curved surface forming non-uniform cultivation rotary tillage assembly according to claim 1, wherein the cone angle of the drill bit (3) is 50-70 degrees, the vertical distance between the spiral cutting edge of the drill bit and the rotary tillage blade (2) at the bottom end of the roll shaft (5) is 5-10cm, and the surface of the drill bit (3) is coated with wear-resistant materials.
  3. 3. The laminated curved surface forming non-uniform cultivation rotary tillage assembly according to claim 1, wherein the supporting shaft neck (6) is matched with a bearing, and is fixedly arranged on a supporting bearing seat on a vertical rotary cultivator frame to form a revolute pair.
  4. 4. The laminated curved surface forming non-uniform cultivation rotary tillage assembly according to claim 1, wherein the driving belt wheel (1) is fixedly connected to the top end of the roller shaft (5) through a key, and the laminated curved surface forming non-uniform cultivation rotary tillage assembly is singly or multiply arranged at the front end of the vertical rotary cultivator.
  5. 5. The laminated curved surface forming non-uniform cultivation rotary tillage assembly according to claim 1, wherein the row spacing of the roller shafts (5) is configured at 50-80cm intervals through adjustable cross beams.

Description

Layered curved surface forming non-uniform cultivation rotary tillage assembly Technical Field The utility model belongs to the technical field of agricultural cultivation machinery, and particularly relates to a layered curved surface forming non-uniform cultivation rotary tillage assembly. Background The rotary cultivator is a key device for farmland cultivation, is used for crushing ground surface stubble and loosening soil, improves soil structure (solid, liquid and gas phase ratio), and creates good conditions for the next crop planting. With the modern development of agriculture, the vertical rotary cultivator is paid attention to due to the high efficiency. However, in dry farming agricultural areas, particularly areas relying on natural rainfall, the existing rotary tillage technology (comprising traditional horizontal and conventional vertical) has the obvious defects of 1 and low water utilization efficiency, and the traditional rotary tillage mode uniformly cultivates the whole land block, so that water is uniformly infiltrated in the field during irrigation or rainfall. The method not only ensures that weeds are easy to breed after the soil in non-planting areas (such as between rows) is improved, but also ensures that water cannot be effectively collected in the root system area of crops, thereby wasting precious water resources. 2. The non-efficient energy consumption is high, and for non-whole field planting modes such as row planting or ridge planting, the traditional rotary tillage mode has the effect of completely disturbing soil in a non-planting area, so that the power consumption of a tractor is obviously increased. Therefore, a need exists for a novel rotary tillage technique that can purposefully improve the soil structure of a planting area, promote efficient collection of rainwater/irrigation water to crop roots, and simultaneously reduce ineffective turbulence in non-planting areas to reduce power consumption. The improvement scheme of the existing vertical rotary cultivator is as follows: Although the cutting resistance of a rotary tillage drill rod (patent CN 216123441U) of the vertical rotary cultivator is reduced through a vertical cutter shaft, the defects that the blade layout is single, deep scarification depends on a single blade, the whole rotary tillage is performed on the land due to equal length blade operation, the rainwater is uniformly permeated, the rainwater utilization rate is low, the power consumption is high, the rotary tillage depth is shallow, the bottom of a roller shaft of the rotary cultivator is easy to wear and uneven in wear, the soil crushing effect is reduced, and the soil particle size is inconsistent are overcome. The vertical rotary cultivator drilling shaft device (patent CN 205389339U) has the advantages that the diameter of the drilling shaft is improved, the diameter of the drilling shaft is sequentially reduced from top to bottom, the effect of reducing partial power consumption is reduced, but the rotary tillage layers formed after rotary tillage are of the traditional I type and are integrally rotary tillage by the equal-length rotary tillage blades, so that the energy-saving and consumption-reducing effects of the structure are not obvious, meanwhile, rainwater is uniformly infiltrated due to the integral rotary tillage of the land, no matter how crops are planted, the moisture applied to the roots of the crops is not much, the utilization rate of rainwater by the crops is low, and the power consumption is high. And other prior art, such as a rotary tillage blade of a mini tiller (patent CN 202197507U) improves the angle of the rotary tillage blade, reduces the resistance born by the blade, and a spiral progressive plow (patent CN 2077183U) adopts spiral blades to plough the soil and crush the soil quickly, thereby improving the working efficiency. However, in the prior art, a single-length blade is still used, so that the blade is seriously worn, and the energy conservation, emission reduction and reasonable utilization of environmental resources are not possible. Aiming at the problems, the utility model designs a layer-by-layer curved surface forming non-uniform cultivation rotary tillage assembly, a soil layer subjected to rotary tillage by the device forms a concave rotary tillage layer with a reverse parabolic section, typical non-uniform cultivation is presented, and the amount of uncultivated soil far away from the center of a groove is large, so that the energy saving and consumption reduction effects of a tractor are obviously improved, the operation efficiency is greatly improved, the soil of the uncultivated layer is firm and three-phase poor, water seepage is not facilitated, and the growth of weeds is inhibited to a certain extent. Disclosure of Invention The utility model aims to provide a rotary tillage roll shaft assembly of a vertical rotary cultivator, which has strong deep tillage capability of non-uniform tillage and go