CN2708610Y

CN2708610Y - Weeder with shallow ripping shovel

Info

Publication number: CN2708610Y
Application number: CN 200420112778
Authority: CN
Inventors: 李洪文; 李问盈; 王兆卫; 王晓燕
Original assignee: China Agricultural University
Current assignee: China Agricultural University
Priority date: 2004-08-19
Filing date: 2004-11-15
Publication date: 2005-07-13
Anticipated expiration: 2014-11-15

Abstract

The utility model discloses a weeder with shallow ripping shovels and is used and matched with a tractor. The technical proposal is that the utility model comprises a frame (5), a depth wheel (3) arranged on the frame (5), shallow ripping shovels, and a pressing wheel (9). The weeder with shallow ripping shovels is characterized in that the number of the shallow ripping shovels is three; on the top view of the frame (5), the shallow ripping shovels which are in the small-sized structure are arranged in the form of the isosceles triangle. Because of adopting the shallow ripping shovels which are in the small-sized structure and arranged in the form of the isosceles triangle, the utility model has favorable block preventing performance, simple structure, small desired dynamic force, small traction resistance, and less ground breaking quantity. Consequently, the utility model satisfies essentially the requirement of the protective cultivation for the soil.

Description

The shovel shallow ripping weeder

Technical field

The utility model relates to a kind of shovel shallow ripping weeder that uses with tractor, belongs to agricultural machinery technological field.

Background technology

China actively promotes the Mechanized Conversation Tillage technology at northern area in recent years, requires the face of land to keep a large amount of crops straws and covers, and sows with no-tillage seeding machine.No-tillage plot also can cause sower to stop up because facility roll etc., and face of land unit weight is bigger when the stalk overlay capacity is too high in addition, influence seeding quality.In conservation tillage, to show native operation in case of necessity,, improve the no-tillage seeding quality, and reach weeding by machine's purpose with loose table soil.

Disk harrow or shallow revolving are generally adopted in the native operation of table at present, and the amount of breaking ground and power consumption are big, and complex structure, and cost is higher.Shallow loose machine is a kind of novel table soil work tool that uses in the conservation tillage, can reach loosen the soil, purposes such as weeding, whole ground, also can be used for the intertill and clean tillage operation.During the shallow loose machine operation of existing big arrow spade type, soil and stalk lateral displacement are big, and the amount of breaking ground is also bigger, and soil layer may overturn up and down, stays the ditch of broad on the face of land, and stalk is at face of land skewness, and coverage rate is lower, and often clogging occurs.

Summary of the invention

The purpose of this utility model provide a kind of can be applicable to the nonirrigated farmland conservation tillage broadcast before the native operation of table, reach loosen the soil, the small-sized shovel shallow ripping weeder of weeding, whole ground purpose.Characteristics such as that this machine should have is simple in structure, required drive is little, operation quality is reliable and stable, and the lateral displacement of soil and stalk is little, and anti-blocking performance is good.

Comprise frame 5 in order to reach the technical scheme that this purpose takes, be installed in the gauge wheel 3 on the frame 5, shallow pine shovel, press wheel 9, it is characterized in that shallow pine shovel has three, is the isosceles triangle setting on the vertical view of frame 5.

In the above-mentioned shovel shallow ripping weeder, described shallow pine shovel is small-scale structure, and each shallow pine shovel fabric width is that B is 400～450mm; Open angle 2 γ values are relevant with the soil texture, 50～58 ° of clays, and 60～78 ° of medium loams, sand are got 70～80 °; Basil i gets 12～15 °; 7～10 ° of clearance angle ε values; Cutting angle β ₀=i+ ε, 19～25 °; Approach angle β value is not more than 15 °; Penetrating angle α=arctan β * sin γ; The wide b of the shovel wing ₁Be 60～65mm; b ₂=2b ₁/ 3, the shovel high h=b in the edge of a wing ₂Sin β; Material thickness δ ₀4～6mm.

In the above-mentioned shovel shallow ripping weeder, described shallow pine shovel comprises spear 1 and spade 4, and they connect by screw 2, can change the parts of wearing and tearing flexibly.

In the above-mentioned shovel shallow ripping weeder, described press wheel 9 adopts and rolls roll-type, comprises that suppressing wheel shaft 10 rolls 11 with rolling, and is installed in the frame rear.

In the above-mentioned shovel shallow ripping weeder, described gauge wheel 3 is two, by the two up and down the adjustable affixed device 6 in relative fixed position respectively symmetry be fixed on frame 5 both sides, thereby can adjust the height up and down of the shallow relatively pine shovel 1 of gauge wheel, promptly can adjust pine soil depth.

The utility model is owing to adopted the shallow pine shovel of small-scale structure; and be the isosceles triangle setting; so have advantages such as anti-blocking performance is good, simple in structure, required drive is little, tractive resistance is little, the amount of breaking ground is little; add shallow pine shovel Parameter Optimization; this machine of making is applicable to that the dry farming conservation tillage broadcasts preceding operation; has good herbicide effect; can improve the grading degree significantly; reduce the native unit weight of table; not remarkable to covering of root stubble and soil moisture influence, satisfied the requirement of conservation tillage substantially to soil.

Description of drawings

Fig. 1 looks schematic diagram for shovel shallow ripping weeder master;

Fig. 2 is a shovel shallow ripping weeder schematic top plan view;

Fig. 3 is shallow pine shovel structural representation.

Specific embodiments

Be described below in conjunction with accompanying drawing 1, accompanying drawing 2 and 3 couples of embodiment of the present utility model of accompanying drawing:

As shown in Figure 1,1 is the spear of shallow pine shovel, and 4 is the spade of shallow pine shovel, and 2 is screw, and 3 is gauge wheel, and 5 is frame, and 6 is the fixed device of gauge wheel, and 7 is the fixed device of press wheel, and 8 is the fixed device of spade of shallow pine shovel, and 9 for adopting the press wheel that rolls roll-type.

The wherein main parts that weed with a hoe are shallow pine shovel, are formed by connecting by screw 2 by spear 1 and spade 4, can change the parts of wearing and tearing flexibly.Spear 1 is little arrow spade type, and its major parameter comprises (as shown in Figure 3): open angle 2 γ, basil i, clearance angle ε, cutting angle β ₀, approach angle β, penetrating angle α, fabric width B, the wide b of the shovel wing ₁And b ₂, the shovel high h in the edge of a wing and material thickness δ ₀Deng.For guarantee that shallow pine shovel power consumption is little, the little and good herbicide effect of lateral displacement of soil and stalk, need be optimized each parameter.In the above-mentioned shovel shallow ripping weeder, described shallow pine shovel is small-scale structure, and each shallow pine shovel fabric width is that B is 400～450mm, gets 430mm; Open angle 2 γ values are relevant with the soil texture, 50～58 ° of clays, and 60～78 ° of medium loams, sand are got 70～80 °, get 2 γ=68 ° by medium loam; Basil i gets 12～15 °, gets 12 °; 7～10 ° of clearance angle ε values are got 10 °; Cutting angle β ₀=i+ ε, gets 22 ° by 19～25 °; Approach angle β value is not more than 15 °, gets 10 °; Penetrating angle α=arctan β * sin γ gets 6 °; The wide b of the shovel wing ₁Be 60～65mm, get 60mm, b ₂=2b ₁/ 3, get 40mm, the shovel high h=b in the edge of a wing ₂Sin β gets 7mm; Material thickness δ ₀4～6mm gets 6mm.

As shown in Figure 2, three shallow pine shovels are isosceles triangle and distribute, and on two row's housiung separators 5, respectively shovel spacing thereby increased before and after being fixed on by affixed device 8 respectively, have both guaranteed the quality of shallow pine, weeding, prevent phenomenons such as obstruction again.Among the figure, 10 are the suppression wheel shaft, and 11 roll for hollow rolling, and 10 and 11 etc. form press wheel 9, are installed in the frame rear, and the soil behind the shallow pine is carried out compacting, roll during work to roll and sway, hollow stronger stubble-cleaning, whole and the suppression ability of rolling of rolling.

Gauge wheel 3 is used for controlling the degree of depth of shallow pine, and symmetry is fixed on the both sides of frame 5, by regulate gauge wheel 3 on affixed device 6 restraint location or the position of installing hole, can adjust the height up and down of the shallow relatively pine shovel of gauge wheel, thereby adjust pine soil depth.

During operation, under the traction of tractor, gauge wheel is made land wheel simultaneously and is supported machine, and shallow pine shovel carries out shallow pine to soil, carries out compacting and smooth by the soil of press wheel after to shallow pine then, finishes the task of shallow pine, weeding.

It should be noted last that, above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the spirit and scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.

Claims

1, a kind of shovel shallow ripping weeder comprises frame (5), is installed in the gauge wheel (3) on the frame (5), shallow pine shovel, press wheel (9), it is characterized in that shallow pine shovel has three, is the isosceles triangle setting on the vertical view of frame (5).

2, shovel shallow ripping weeder according to claim 1 is characterized in that, described shallow pine shovel is small-scale structure, and each shallow pine shovel fabric width is that B is 400～450mm; Open angle 2 γ values are relevant with the soil texture, 50～58 ° of clays, and 60～78 ° of medium loams, sand are got 70～80 °; Basil i gets 12～15 °; 7～10 ° of clearance angle ε values; Cutting angle β ₀=i+ ε, 19～25 °; Approach angle β value is not more than 15 °; Penetrating angle α=arctan β * sin γ; The wide b of the shovel wing ₁Be 60～65mm; b ₂=2b ₁/ 3, the shovel high h=b in the edge of a wing ₂Sin β; Material thickness δ ₀4～6mm.

3, shovel shallow ripping weeder according to claim 1 and 2 is characterized in that, described shallow pine shovel comprises spear (1) and spade (4), and they connect by screw (2).

4, shovel shallow ripping weeder according to claim 1 and 2 is characterized in that, described press wheel (9) adopts and to roll roll-type, comprises suppression wheel shaft (10) and rolls and roll (11), is installed in the frame rear.

5, shovel shallow ripping weeder according to claim 1 and 2 is characterized in that, described gauge wheel (3) is two, by the two up and down the adjustable affixed device (6) in relative fixed position respectively symmetry be fixed on frame (5) both sides.