CN108718711B

CN108718711B - Spring tooth type straw clearing and blocking preventing seedbed preparation method and device for preventing stubble from returning

Info

Publication number: CN108718711B
Application number: CN201810557946.6A
Authority: CN
Inventors: 陈海涛; 史乃煜; 王星
Original assignee: Northeast Agricultural University
Current assignee: Northeast Agricultural University
Priority date: 2018-06-01
Filing date: 2018-06-01
Publication date: 2021-01-08
Anticipated expiration: 2038-06-01
Also published as: CN108718711A

Abstract

The invention belongs to agricultural machinery; the device consists of a spring tooth unit group, a transmission component and a drive component spring tooth angle control rod. The elastic tooth unit group comprises elastic teeth, an elastic tooth connecting seat, an elastic tooth connecting shaft and a control rod connecting seat; the power output shaft of the tractor transmits power through the driving part, and the elastic tooth unit groups are arranged at the outer side of the transmission part at equal intervals and move together with the transmission part; the stubble on the original stubble field is horizontally conveyed and scattered to the outside (single side or double sides) of the machine tool laterally (single side or double sides), and is uniformly covered on the surface of the sowed ground. The invention effectively reduces the residual stubble belt returning amount in the operation process of the no-tillage seeding machine, thereby realizing high-quality seedbed preparation, simultaneously reducing the soil moving amount, reducing the power consumption and providing a new idea for clearing and covering straws for the no-tillage seeding machine.

Description

Spring tooth type straw clearing and blocking preventing seedbed preparation method and device for preventing stubble from returning

Technical Field

The invention belongs to agricultural machinery, and mainly relates to a spring-tooth type straw-clearing and blockage-preventing seedbed preparation device for preventing stubble return.

Background

The protective farming technology is defined as a farming technology which adopts a few-tillage and no-tillage mode in the farmland, covers the ground surface by crop stubble, reduces soil water erosion and wind erosion, improves the organic matter content of crops, fertilizes the soil, and improves the drought resistance. The method has the advantages of environmental protection, soil fertility improvement, high efficiency, energy conservation, water storage, soil moisture conservation, cost saving, efficiency improvement and the like, and can realize sustainable development of agriculture. To realize this technology, it is necessary to design and develop a complete protective cultivation device, and among them, a no-tillage planter with reliable quality and good performance becomes important as the key of the protective cultivation. Because of the special requirement of protective cultivation, the no-tillage seeding machine needs to perform no-tillage seeding operation on the ground surface covered by a large amount of residual stubbles, thereby improving the trafficability of the seeding machine in the residual stubbles covered ground operation and ensuring the seeding quality, and the no-tillage seeding machine is the key point and the difficulty for effectively implementing the no-tillage seeding technology.

The stubble covering amount of the original stubble field in China is large, the problem of stubble blocking during operation cannot be solved by a passive anti-blocking technology, so that the stubble treatment must be carried out by adopting a power-driven anti-blocking technology, the working principle of the anti-blocking technology is that power is provided by a power output shaft of a tractor, an anti-blocking device is driven to crush, throw and the like the stubble to realize anti-blocking, when a working part throws the stubble, a stubble return belt is generated due to inertia generated by rotation operation, the returned stubble falls on a seedbed after preparation, seeding monomer blocking is easily caused after accumulation, and further development of accurate seeding and fertilization is restricted.

Therefore, a spring-tooth type straw clearing and blocking prevention seedbed preparation method and device for preventing stubble from returning are provided.

Disclosure of Invention

Aiming at the problems, the invention provides a spring-tooth type straw-cleaning anti-blocking seedbed preparation method and device for preventing stubble from returning by combining with the actual demand of no-tillage seeding of a stubble field, so that the stubble is prevented from returning on the premise of reducing the soil moving amount, high-quality seedbed preparation is realized, and simultaneously, the power consumption is saved and the overload protection is realized when the stubble is impacted.

The basic design created by the invention is as follows: when the straw cleaning device works, the elastic tooth unit groups are arranged at equal intervals outside the transmission part and move along with the transmission part to horizontally convey stubbles on the original stubble field, and then the stubbles are scattered to the side direction of the machine tool and uniformly cover the surface of the sowed ground. The elastic tooth A, the elastic tooth B and the elastic tooth C are fixedly arranged at the left part, the middle part and the right part of the elastic tooth connecting shaft through an elastic tooth connecting seat A, an elastic tooth connecting seat B and an elastic tooth connecting seat C, and form an elastic tooth unit group together with the control rod connecting seat; the elastic tooth unit group is fixedly arranged on the outer sides of the transmission component A and the transmission component B at equal intervals through the shaft seat A and the shaft seat B; the driving part A and the driving part B are connected by the transmission part A, and the driving part C and the driving part D are connected by the transmission part B; one end of the spring tooth angle control rod is hinged on the spring tooth angle control rod connecting seat of the previous spring tooth unit group, and the other end is hinged on the spring tooth connecting shaft of the next spring tooth unit group, so that the device for preventing stubble from returning to the spring tooth type straw cleaning and anti-blocking seedbed is formed.

The invention realizes high-quality seedbed preparation by preventing the returning of the stubble, reduces the soil moving amount and the power consumption, and provides a new idea for cleaning and covering straws for the cultivator-free machine.

Drawings

FIG. 1 is a schematic structural view of a straw-cleaning and anti-blocking seedbed preparation device for preventing stubble from returning with a spring tooth;

FIG. 2 is a schematic structural diagram of a latch unit group;

FIG. 3 is a schematic diagram of the motion state of the latch unit group;

FIG. 4 is a top view of the straw-cleaning and anti-blocking seedbed preparation device for preventing stubble-residue return with spring teeth;

FIG. 5 is a schematic view of a seed bed preparation device of a no-tillage planter for wide stubble field.

Description of part numbers in the figures:

1. axle seat B2, driving part D3, elastic tooth angle control rod 4, transmission part B5, driving part C6, driving part B7, transmission part A8, driving part A9, axle seat A10, elastic tooth A11, elastic tooth B12, elastic tooth C13, elastic tooth connecting seat C14, elastic tooth connecting shaft 15, elastic tooth connecting seat B16, control rod connecting seat 17, elastic tooth connecting seat A18, driven shaft A19, bearing seat A20, bearing seat B21, driving shaft A22, bearing seat C23, driven sprocket B24, driving shaft B25, bearing seat D26, driven shaft B27, wide frame 28, chain B29, spline transmission box 30, chain A31, driven sprocket A23

Detailed Description

The following detailed description of the inventive embodiments is provided in connection with the accompanying drawings. A spring tooth type seedbed preparation device for preventing stubble from returning is characterized in that a spring tooth A (10), a spring tooth B (11) and a spring tooth C (12) are fixedly arranged at the left, middle and right parts of a spring tooth connecting shaft (14) through a spring tooth connecting seat A (17), a spring tooth connecting seat B (15) and a spring tooth connecting seat C (13) to form a spring tooth unit group together with a control rod connecting seat (16); the elastic tooth unit group is fixedly arranged on the outer sides of the transmission component A (7) and the transmission component B (4) at equal intervals through the shaft seat A (9) and the shaft seat B (1); the driving part A (8) and the driving part B (6) are connected by a transmission part A (7), and the driving part C (5) and the driving part D (2) are connected by a transmission part B (4); one end of the elastic tooth angle control rod (3) is hinged to the control rod connecting seat (16) of the previous elastic tooth unit group, and the other end is hinged to the elastic tooth connecting shaft (14) of the next elastic tooth unit group.

When the elastic teeth move horizontally to carry out horizontal conveying operation on the stubble, as shown in fig. 3: the elastic tooth angle control rod connecting seat part of the elastic tooth unit group, the elastic tooth angle control rod and the parts between the two elastic tooth connecting seats form a stable triangular structure, and the elastic teeth are always vertical to the ground when not stressed. When the elastic tooth unit group does circular motion along with the driving part to carry out lateral throwing operation on the stubble, the linear distance between the two elastic tooth connecting seats is shortened, the elastic tooth unit group rotates clockwise for a certain angle around a shaft under the pushing of the elastic tooth angle control rod, the deflection angle between the elastic tooth and the gravity direction is reduced, the phenomenon of stubble returning can be effectively reduced, and therefore a good seedbed is prepared on the original stubble ground, and a foundation is laid for accurate seeding and fertilization.

The seedbed preparation device matched with the wide original stubble land no-tillage seeder is characterized in that a spline transmission case (29), bearing seats A (19), B (20), C (22) and D (25) are fixedly mounted on a wide frame (27), the device for preventing stubble from returning to the seedbed in claim 1 is symmetrically arranged on the wide frame (27) through a driving shaft A (21), a driving shaft B (24) and driven shafts A (18) and B (26), driven sprockets A (31) and B (23) are respectively arranged at one ends of the driving shafts A (21) and B (24), the spline transmission case (29) is connected with the driven sprocket A (31) through a chain A (30), and the spline transmission case (29) is connected with the driven sprocket B (23) through a chain B (28).

When the device operates, the power output shaft of the tractor provides power, the driven chain wheel is driven to rotate by the spline transmission case, the symmetrically juxtaposed elastic tooth type no-tillage seeding machines prevent the stubble from being returned to the belt and uniformly cover the stubble on the two sides of the frame by the seedbed preparation device, high-quality seedbed preparation is completed, wide-width operation of the no-tillage seeding machines is realized, and a foundation is laid for high-efficiency seeding and fertilizing.

Claims

1. A spring tooth type seedbed preparation device for preventing stubble from returning is characterized in that a spring tooth A (10), a spring tooth B (11) and a spring tooth C (12) are fixedly arranged at the left, middle and right parts of a spring tooth connecting shaft (14) through a spring tooth connecting seat A (17), a spring tooth connecting seat B (15) and a spring tooth connecting seat C (13) to form a spring tooth unit group together with a control rod connecting seat (16); the elastic tooth unit group is fixedly arranged on the outer sides of the transmission component A (7) and the transmission component B (4) at equal intervals through the shaft seat A (9) and the shaft seat B (1); the driving part A (8) and the driving part B (6) are connected by a transmission part A (7), and the driving part C (5) and the driving part D (2) are connected by a transmission part B (4); one end of the elastic tooth angle control rod (3) is hinged to the control rod connecting seat (16) of the previous elastic tooth unit group, and the other end of the elastic tooth angle control rod is hinged to the elastic tooth connecting shaft (14) of the next elastic tooth unit group; a spline transmission case (29) and bearing seats A (19), B (20), C (22) and D (25) are fixedly arranged on a wide frame (27), the stubble-residue-return-belt elastic-tooth type seedbed preparation device is symmetrically arranged on the wide frame (27) through a driving shaft A (21) and a driving shaft B (24) and driven shafts A (18) and B (26), driven chain wheels A (31) and B (23) are arranged at one ends of the driving shaft A (21) and the driving shaft B (24) respectively, the spline transmission case (29) is connected with the driven chain wheels A (31) through a chain A (30), and the spline transmission case (29) is connected with the driven chain wheels B (23) through a chain B (28).