CN104380861A

CN104380861A - Corn seedling stage stabbing tooth type soil loosening mechanism

Info

Publication number: CN104380861A
Application number: CN201410545396.8A
Authority: CN
Inventors: 周福君; 赵玮; 李沐桐
Original assignee: Northeast Agricultural University
Current assignee: Northeast Agricultural University
Priority date: 2014-09-29
Filing date: 2014-09-29
Publication date: 2015-03-04
Anticipated expiration: 2034-09-29
Also published as: CN104380861B

Abstract

The invention provides a corn seedling stage stabbing tooth type soil loosening mechanism, belonging to agricultural machinery. An elastic suspension type rack assembly is fixedly provided with a standard shaft; the standard shaft is rotationally provided with a wheel disc; an eccentric cam is fixedly mounted on the standard shaft; a plurality of stabbing teeth are mounted on the wheel disc and the inner end parts of the stabbing teeth are hinged to pulleys; the pulleys are in contact match with the eccentric cam; pressure springs are arranged on the stabbing teeth in a sleeving manner and the inner ends of the pressure springs are positioned in the axial direction of the stabbing teeth; the outer ends of the pressure springs are in contact match with the wheel disc; the whole outer outline of the eccentric cam is sequentially composed of an extending stroke circular arc surface, a near stopping circular arc surface, a far stopping circular arc surface, an upper transition circular arc surface, a return stroke circular arc surface and a lower transition circular arc surface, which are in smooth connection. The corn seedling stage stabbing tooth type soil loosening mechanism has a novel design, a reasonable whole structure, good soil loosening work effect, high working efficiency, small working resistance and less power consumption; the corn seedling stage stabbing tooth type soil loosening mechanism works cleanly and is easy to clean.

Description

Maize at Seedling Stage pricks tooth-like loosing earth mechanism

Technical field

The invention belongs to agricultural machinery, relate generally to a kind of Maize at Seedling Stage cultivating equipment product.

Background technology

For more effectively keeping soil nutrient, improve output and ensure the balance between revenue and expenditure of soil, while Maize at Seedling Stage ridging, need loosen the soil to soil intertillage, to improve the compensation of the soil organic matter, and the harm of the stirring to topsoil soils should be reduced as possible, avoid large dynamic work to increase energy consumption simultaneously, realize the operation of high accuracy effect.The parts such as bow hoe, wing plough and deep soil loosing shovel that the many employings of used Maize at Seedling Stage cultivating equipment are traditional, operation quality and operation effectiveness have much room for improvement.

Summary of the invention

Object of the present invention is exactly for above-mentioned prior art Problems existing, in conjunction with actual needs, a kind of Maize at Seedling Stage of research and design pricks tooth-like loosing earth mechanism, by changing mode of loosening the soil, and the object reaching the recovery that increases fertility of land, ensure operation effectiveness, reduce operation resistance, reduce power consumption.

The object of the present invention is achieved like this: Maize at Seedling Stage is pricked tooth-like loosing earth mechanism and comprised resilient hanger open frame assembly, described resilient hanger open frame assembly bottom is fixedly mounted with reference axis, rotating installation wheel disc on reference axis, eccentric cam is packed on reference axis; The uniform cooperation of multiple bundle tooth expandable movement is arranged on wheel disc, described bundle tooth inner end portion is hinged and installs pulley, described pulley contacts with eccentric cam and coordinates, and pressure spring set fits over to be pricked on tooth, described compression spring is inner is pricking axial location on tooth, and its outer end coordinates with sheave contact; The overall outline of described eccentric cam successively by rise arc surface, closely stop arc surface, far to stop arc surface, upper transition circle cambered surface, backhaul arc surface and lower transition circle cambered surface is round and smooth connects and composes, with the centre bore central point O of eccentric cam for benchmark, O is put, radius R centered by the center of circle of described rise arc surface ₈it is 130 millimeters; The centre point O of the described arc surface that closely stops ₉be positioned at 10 millimeters, 50 millimeters, left point of intersection below central point O, its radius R ₉it is 80 millimeters; The centre point O of the described arc surface that far stops ₁₀be positioned at 60 millimeters, 120 millimeters, left point of intersection below central point O, its radius R ₁₀it is 165 millimeters; The centre point O of described upper transition circle cambered surface ₁₁be positioned at 15 millimeters, central point O right, 4.6 millimeters, top point of intersection, its radius R ₁₁it is 15 millimeters; The centre point O of described backhaul arc surface ₁₂be positioned at 224 millimeters, central point O right, 45 millimeters, below point of intersection, its radius R ₁₂it is 200 millimeters; The centre point O of described lower transition circle cambered surface ₁₃be positioned on the direction straight line of 15 millimeters, central point O right, its radius R ₁₃be 15 millimeters, lower transition circle cambered surface respectively with rise arc surface and backhaul arc surface tangent.

The present invention is novel in design, and general structure is reasonable, and the operation effectiveness that loosens the soil is good, operating efficiency is high, and stability is strong, can avoid twining careless clay phenomenon in field conditions operation, power consumption is few, and the clean also easy to clean of facility work, effectively improves field machinery degree.

Accompanying drawing explanation

Fig. 1 is that Maize at Seedling Stage pricks tooth-like loosing earth mechanism general structure schematic diagram;

Fig. 2 is eccentric cam structural representation.

In figure, piece number illustrates:

1, resilient hanger open frame assembly 2, wheel disc 3, eccentric cam 4, prick tooth 5, pulley 6, compression spring 7, reference axis 8, rise arc surface 9, closely stop arc surface 10, far to stop arc surface 11, upper transition circle cambered surface 12, backhaul arc surface 13, lower transition circle cambered surface 14, centre bore

Embodiment

Below in conjunction with accompanying drawing, embodiment of the present invention is described in detail.

A kind of Maize at Seedling Stage pricks tooth-like loosing earth mechanism, and comprise resilient hanger open frame assembly 1, described resilient hanger open frame assembly 1 bottom is fixedly mounted with reference axis 7, rotating installation wheel disc 2 on reference axis 7, eccentric cam 3 is packed on reference axis 7; The uniform cooperation of multiple bundle tooth 4 expandable movement is arranged on wheel disc 2, described bundle tooth 4 inner end portion is hinged pulley 5 is installed, described pulley 5 contacts with eccentric cam 3 and coordinates, compression spring 6 cover fits over to be pricked on tooth 4, described compression spring 6 the inner is axial location on bundle tooth 4, and its outer end contacts with wheel disc 2 and coordinates; The overall outline of described eccentric cam 3 successively by rise arc surface 8, closely stop arc surface 9, far to stop arc surface 10, upper transition circle cambered surface 11, backhaul arc surface 12 and lower transition circle cambered surface 13 is round and smooth connects and composes, with the centre bore 14 central point O of eccentric cam 3 for benchmark, O is put, radius R centered by the center of circle of described rise arc surface 8 ₈it is 130 millimeters; The centre point O of the described arc surface 9 that closely stops ₉be positioned at 10 millimeters, 50 millimeters, left point of intersection below central point O, its radius R ₉it is 80 millimeters; The centre point O of the described arc surface 10 that far stops ₁₀be positioned at 60 millimeters, 120 millimeters, left point of intersection below central point O, its radius R ₁₀it is 165 millimeters; The centre point O of described upper transition circle cambered surface 11 ₁₁be positioned at 15 millimeters, central point O right, 4.6 millimeters, top point of intersection, its radius R ₁₁it is 15 millimeters; The centre point O of described backhaul arc surface 12 ₁₂be positioned at 224 millimeters, central point O right, 45 millimeters, below point of intersection, its radius R ₁₂it is 200 millimeters; The centre point O of described lower transition circle cambered surface 13 ₁₃be positioned on the direction straight line of 15 millimeters, central point O right, its radius R ₁₃be 15 millimeters, lower transition circle cambered surface 13 respectively with rise arc surface 8 and backhaul arc surface 12 tangent.

Loosen the soil operation time, utilize resilient hanger open frame assembly 1 by single unit system of the present invention on cultivating equipment with machine travel, carry out loosening the soil operation in furrow both sides, field simultaneously, prick tooth 4 and go deep into soil, the bundle tooth 4 that the reaction force of soil causes circumference array drives wheel disc 2 to rotate, the bundle tooth 4 of its top moves in the process of lowermost end, compression spring 6 applies pressure to the bundle tooth 4 that pulley 5 is housed all the time, remain that static eccentric cam 3 continues bundle tooth 4 reaction force giving to coordinate pulley 5 simultaneously, bundle tooth 4 is forced to extend, cause it and penetrate stirring in soil, be positioned at the bundle tooth 4 at lowermost end place, along with wheel disc 2 is about to the moment leaving upper soll layer, eccentric cam 3 surface increases with the spacing of wheel disc 2 inwall, compression spring 6 is made to return relaxed state rapidly by tensioning state, make bundle tooth 4 farthest snapback, prick tooth 2 pairs of quick toggle action of Zinc fractions, improve the effect and technique effect of intertilling and loosening the soil.And by the clay carried secretly in the process of loosening the soil and weeds from wheel disc 2 with prick tooth 4 and remove, so far complete single circumference and to loosen the soil operation.

Claims

1. a Maize at Seedling Stage pricks tooth-like loosing earth mechanism, comprise resilient hanger open frame assembly (1), it is characterized in that: on described resilient hanger open frame assembly (1) bottom, be fixedly mounted with reference axis (7), the upper rotating installation wheel disc (2) of reference axis (7), eccentric cam (3) is packed on reference axis (7); The uniform cooperation of multiple bundle tooth (4) expandable movement is arranged on wheel disc (2), described bundle tooth (4) inner end portion is hinged pulley (5) is installed, described pulley (5) contacts with eccentric cam (3) and coordinates, compression spring (6) cover fits over to be pricked on tooth (4), described compression spring (6) is inner in the upper axial location of bundle tooth (4), and its outer end contacts with wheel disc (2) and coordinates; Described eccentric cam (3) overall outline successively by rise arc surface (8), closely stop arc surface (9), far to stop arc surface (10), upper transition circle cambered surface (11), backhaul arc surface (12) and lower transition circle cambered surface (13) is round and smooth connects and composes, with the centre bore of eccentric cam (3) (14) central point O for benchmark, O is put, radius R centered by the center of circle of described rise arc surface (8) ₈it is 130 millimeters; The centre point O of the described arc surface (9) that closely stops ₉be positioned at 10 millimeters, 50 millimeters, left point of intersection below central point O, its radius R ₉it is 80 millimeters; The centre point O of the described arc surface (10) that far stops ₁₀be positioned at 60 millimeters, 120 millimeters, left point of intersection below central point O, its radius R ₁₀it is 165 millimeters; The centre point O of described upper transition circle cambered surface (11) ₁₁be positioned at 15 millimeters, central point O right, 4.6 millimeters, top point of intersection, its radius R ₁₁it is 15 millimeters; The centre point O of described backhaul arc surface (12) ₁₂be positioned at 224 millimeters, central point O right, 45 millimeters, below point of intersection, its radius R ₁₂it is 200 millimeters; The centre point O of described lower transition circle cambered surface (13) ₁₃be positioned on the direction straight line of 15 millimeters, central point O right, its radius R ₁₃be 15 millimeters, lower transition circle cambered surface (13) respectively with rise arc surface (8) and backhaul arc surface (12) tangent.