CN2246886Y

CN2246886Y - Rotary cultivator with arc-shaped harrow bar

Info

Publication number: CN2246886Y
Application number: CN 96203584
Authority: CN
Inventors: 甄子健
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-02-29
Filing date: 1996-02-29
Publication date: 1997-02-12
Anticipated expiration: 2006-02-28

Abstract

The utility model relates to a rotating cultivator which can make cultivated soil form a multilayer granularity gradient structure with fine soil on upper layers and rough soil on lower layers. One set of harrow strips which are tilted forwards in a one-way arc protrusion mode or in an upper and lower opposite arc protrusion mode is arranged between rotating cultivating space and a rear dragging plate along rotating cultivating width. Soil furrows which are thrown up by rotating cultivating blades are sieved, touched, raked and divided, which make big blocks of soil and plant roots pressed on the lower layers, and a hierarchical oil structure which is suitable for seeding is formed. The stubble elimination effect of rotating cultivation is also increased. The utility model has the characteristics of easy fabrication and application, large popularization potential, etc. In addition, the utility model can be used for improving the existing common rotating cultivators.

Description

The rotovator of band arc-shaped harrow bar

The utility model relates to a kind of rotovator, especially a kind ofly has arc-shaped harrow bar so that soil forms the transverse horizontal cutter shaft rotovator of up-thin-low-thick layering granularity structure after rotary tillage.

In recent years, along with improvement of Manufacturing Technology and agrotechnical development, the various rotovators that can adapt to the requirement of different dynamic machine and dry land paddy field each side have obtained increasing popularization and application; Simultaneously also constantly there is the new integration of operation machine that has the rotary tillage function to come into operation.

In farmland operations such as sowing, the soil that requirement is got ready should have receives the up-thin-low-thick stratified soil granularity structure that is pressed in the lower soil with bigger soil block and plant roots and stems, yet after utilizing existing rotary tillage technology to carry out the rotary tillage operation, can only form the same soil structure of granularity up and down, this soil ground block structure can not the fine requirement that must adapt to seeding operation.

The purpose of this utility model is to provide a kind of rotovator that has arc-shaped harrow bar, by its with the bumping of arc-shaped harrow bar, sieve, harrow, the branch effect, make the soil after the rotary tillage form up-thin-low-thick stratified soil granularity structure, soil block that will be bigger and plant roots and stems are embedded in the darker soil layer.

Task of the present utility model is finished in the following manner, between rotovator rear base plate and the rotary tillage space that forms by rotary blade, be provided with one group of arc that leans forward of arranging along the rotary tillage width and harrow the bar group in order to sieve, to bump, to harrow, to divide the Tu Fa that throws by rotary blade, the upper end removable mounting of forming the arc-shaped harrow bar of rake bar group is fixed on the top or the frame close with it of rear base plate, the installation site is adjustable up and down, and the lower end of arc-shaped harrow bar stretches into that the planker of soil drags under the whole upper surface after the rotary tillage.

Like this, the Tu Fa that is also thrown backward by the rotary blade rotary tillage in the operation is directly thrown to be beaten on the rake bar group of arranging along the rotary tillage width, after the rake bar bumps, sieves, fly after the inter-lobe clearance that the less soil block of granularity sees through rake bar tooth continues, after it further breaks up, fall running into rear base plate, form and be fit to sowing and wait going up of operation to show the fine earth layer; Soil block that granularity is bigger and plant roots and stems are then blocked, are pressed in the darker soil layer by its rake by arc-shaped harrow bar.Respectively harrow the rake bar group substructures such as following elongation of bar by adjusting rake bar group, can obtain up-thin-low-thick soil grades structure two-layer, three layers even multilayer different parameters.

The utility model will be further described below with reference to accompanying drawing.

Fig. 1 is the work schematic diagram of a kind of concrete structure of the utility model.

With reference to Fig. 1, the utility model comprises rotary tillage actuating unit (15), (68) (69) are hung in traction, frame (70), rotary tillage end plate (77), rotary ploughing cutter shaft (17), rotary blade (66), keep off native bent plate (14), gauge wheel (10), rear base plate (49) and the arc that leans forward rake bar group (48) etc., the rotary tillage actuating unit (15) that wherein is positioned at frame front is the used actuating unit of existing rotovator or the related transmission device of utility model patent " the interchangeable rotary tillage actuating unit that turns to " of separate case application on the same day, and this system passes to rotary ploughing cutter shaft (17) by chain with rotary power.

With reference to Fig. 1, there is being one group of rake of arranging along the rotary tillage width that bumps in order to sieve to divide the Tu Fa that thrown by rotary blade (66), make the soil of ploughing after whole form the arc rake bar group (48) that leans forward of up-thin-low-thick stratified soil granularity structure between rear base plate (49) and the rotary tillage space (61) that forms by rotary blade (66), top or the frame (70) close with it that the upper end removable mounting of forming the arc-shaped harrow bar (1) of rake bar group is fixed on rear base plate (49) goes up, the installation site is adjustable up and down, and the lower end of arc-shaped harrow bar (1) stretches into that the planker of soil drags under the whole upper surface after the rotary tillage.The main effect one of rake bar group (48) is to strengthen the throwing of rotary tillage to break up the soil effect; The 2nd, by the throwing sieve effect on its top and the rake building effect of bottom, only allow the soil particle of tiny diameter pass through, the fine earth layer is shown in going up of the suitable sowing of formation etc., and large diameter slightly soil block and plant roots and stems are harrowed pressure-controlled in darker soil layer.

When arc-shaped harrow bar (1) is when being fixed on the top of rear base plate (49), this rear base plate (49) has rigidity shaping or the bigger elastic floating shaping jockey of elastic force pressure, to support the rotation operational forces of arc-shaped harrow bar.

With reference to Fig. 1, when the rotary tillage of this machine partly carry out be the counter-rotating rotary tillage opposite that provides by the interchangeable rotary tillage actuating unit (15) that turns to common rotovator the time, the direction of motion on rotary blade (66) summit on the revolution circumference is to point to arc-shaped harrow bar (1) backward, at this moment throwing the rake hack by rake bar group (48), to form the effect of stratified soil granularity structure best, but the application that will decide the counter-rotating rotary tillage according to the power and the soil actual conditions of mating power machine is big because the counter-rotating rotary tillage expends power in actual applications.When the agricultural machinery user utilizes the art of this patent that own used rotovator is transformed, just can not consider to reduce owing to the layered effect that the restriction that turned to by rotovator brings.

With reference to Fig. 1, according to the agronomy needs, the rake bar group (48) of general layering rotovator commonly used has neat two layers of branch soil structure, each arc-shaped harrow bar (1) lower end down and stretches into the planker of soil and drag the degree of depth under the whole upper surface identical, and the planker of soil is stretched into after the rotary tillage in arc-shaped harrow bar (1) lower end, and to drag the degree of depth under the whole upper surface be in the such scope of 3cm to 15cm that meets agriculture requirements such as sowing, cultivation.This neat two layers of hierarchy down of rake bar group have simply, practical characteristics.

With reference to Fig. 1, sometimes in order to adapt to some specific (special) requirements, also can make rake bar group (48) have down irregular three layers or multilayer branch soil structure, each arc-shaped harrow bar (1) has a short tooth or does on this basis repeatedly and extend every the long tooth of tooth every a tooth.For making rotovator have three layers of branch soil function, the irregular structure that a short tooth is arranged every a tooth should be made in the bottom of rake each arc-shaped harrow bar of bar group (48) (1) in other words; Divide native function for rotovator is had more than three layers multilayer, just should on the basis of one short one long structure of three layers of branch soil, further do repeatedly, make the bottom of harrowing each arc-shaped harrow bar of bar group (48) form compound irregular structure every the long tooth lengthening of tooth.

With reference to Fig. 1, arc-shaped harrow bar (1) is that the protruding bank of as shown in the figure arc in the same way is in conjunction with the arc arc-shaped harrow bar generally speaking.And when being used for many plant roots and stems plot or special soil structure plot, arc-shaped harrow bar (1) is to be convenient to bulk soil and plant roots and stems receipts are pressed in the arc arc-shaped harrow bar that the each point tangent line in the lower soil leans forward, it is made up of the tangent arc of two groups of rounding ofves up and down, on organize arc length and arc convex direction roughly with the back upper place that last arc body arc is identical, the each point tangent line is positioned at arc of rear base plate (49); Organize the front lower place that the arc convex direction is opposite with last group, the each point tangent line is positioned at arc of arc down, its length comprises sub-fraction and the following part of native face before arc-shaped harrow bar buries.

Utilize the improved rotovator of the utility model under the prerequisite that does not increase structural complexity, not only increased very useful layered soil function, and obviously strengthened rotary tillage stubble-cleaning effect, easy manufacturing is implemented, promotion potential is big.The utility model technology also can be used for the transformation of existing common rotovator.

Claims

1, a kind ofly have arc-shaped harrow bar so that soil forms the transverse horizontal cutter shaft rotovator of up-thin-low-thick layering granularity structure after rotary tillage, it comprises rotary tillage actuating unit (15), (68) (69) are hung in traction, frame (70), rotary tillage end plate (77), rotary ploughing cutter shaft (17), rotary blade (66), keep off native bent plate (14) and rear base plate (49) etc., it is characterized in that between rear base plate (49) and the rotary tillage space (61) that forms by rotary blade (66), having one group to bump rake in order to sieve and divide the Tu Fa that is thrown by rotary blade (66) along what the rotary tillage width was arranged, make the soil of ploughing after putting in order form the arc rake bar group (48) that leans forward of up-thin-low-thick stratified soil granularity structure, the upper end removable mounting of forming the arc-shaped harrow bar (1) of rake bar group is fixed on the top or the frame (70) close with it of rear base plate (49), the installation site is adjustable up and down, and the lower end of arc-shaped harrow bar (1) stretches into that the planker of soil drags under the whole upper surface after the rotary tillage.

2, the rotovator of band arc-shaped harrow bar according to claim 1 is characterized in that harrowing bar group (48) and has neat two layers of branch soil structure, each arc-shaped harrow bar (1) lower end down and stretch into the planker of soil and drag the degree of depth under the whole upper surface identical.

3, the rotovator of band arc-shaped harrow bar according to claim 2, it is characterized in that stretching into after the rotary tillage planker of soil in arc-shaped harrow bar (1) lower end, to drag the degree of depth under the whole upper surface be in the such scope of 3cm to 15cm that meets agriculture requirements such as sowing, cultivation.

4, the rotovator of band arc-shaped harrow bar according to claim 1 is characterized in that harrowing bar group (48) and has down irregular three layers or multilayer branch soil structure, each arc-shaped harrow bar (1) and one short tooth is arranged or do on this basis repeatedly and extend every the long tooth of tooth every a tooth.

5, the rotovator of band arc-shaped harrow bar according to claim 1, it is characterized in that seeing from the side, arc-shaped harrow bar (1) is to be convenient to bulk soil and plant roots and stems receipts are pressed in the arc arc-shaped harrow bar that the each point tangent line in the lower soil leans forward, it is made up of the tangent arc of two groups of rounding ofves up and down, on organize arc length and arc convex direction roughly with the back upper place that last arc body arc is identical, the each point tangent line is positioned at arc of rear base plate (49); Organize the front lower place that the arc convex direction is opposite with last group, the each point tangent line is positioned at arc of arc down, its length comprise arc-shaped harrow bar before burying sub-fraction and the part under the native face.

6, the rotovator of band arc-shaped harrow bar according to claim 1, it is characterized in that when arc-shaped harrow bar (1) be when being fixed on the top of rear base plate (49), this rear base plate (49) has rigidity shaping or the bigger elastic floating shaping jockey of elastic force pressure.