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Tooth-toe type rotary tillage knife

A technology of rotary tiller and knife handle, applied in the field of tooth-toe rotary tiller, can solve the problems of high soil cutting resistance and high power consumption of the rotary tiller, and achieves the reduction of soil cutting resistance, strong anti-grass entanglement ability, and low power consumption. The effect of soil entry resistance

Inactive Publication Date: 2018-01-09
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a tooth-toe rotary tiller with bionic structure characteristics in order to solve the problems of large soil cutting resistance and high power consumption of the rotary tiller of the existing drive type tillage machinery

Method used

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  • Tooth-toe type rotary tillage knife
  • Tooth-toe type rotary tillage knife
  • Tooth-toe type rotary tillage knife

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] like figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 and Image 6 As shown, this example tooth-toe type rotary cultivator is made up of handle 1 and cutter body 2; Its figure 1 In the outline of the front view, the line abcla is the handle 1, where ab, bc, cl, and la are straight lines; the line cdefghijklc is the knife body 2, where cd is the curve, de is the curve, hi is the curve H, ij Curve I, jk are curves, di, ef, fg, gh, kl, lc are straight lines, and the corresponding points of curve cd and curve I gradually increase to 45mm at the initial distance of 30mm, and curve de is the extension line of curve cd, Curve jk is the extension line of curve I, point m is located on the connecting line of di, the side tangent plane 3 is inside the cdmijklc connecting line, and the tangent plane 4 is inside the defghimd connecting line. r 0 =30mm bending, the bending angle α is 110°-130°, the side cutting edge 5 is inside the ijklmi connection line, wherein lm is...

Embodiment 2

[0065] like figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 and Figure 7 As shown, the tooth-toe type rotary cultivator of this example is different from Example 1 in that: there are 5 toes 8 in the tangent plane 4, and the direction from point i to point h is named as the first toe, the second toe, and the third toe. toe, fourth toe, fifth toe. The toe 8, toe length L i with toe width W i meet L i =m×W i , where m is the size factor, its value is 3; the distance between the i+1 toe and the i toe is S i , where S i =p×L i , p is the size factor, its value is 0.5; the distance between the first toe and the straight line di is S 0 , where S 0 =q×L 1 , q is the size factor, its value is 0.77; the toes are free to transition through arc curves; the toe width W 1 =10mm, toe width W i Decrease successively with the difference d as an arithmetic sequence, where d satisfies:

[0066]

[0067] Among them: L 0 is the horizontal length of the projected curve...

Embodiment 3

[0070] like figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 and Figure 8 As shown, the tooth-toe type rotary tiller of this example is different from Example 1 in that: there are 7 toes 8 in the tangent plane 4, and the direction from point i to point h is named as the first toe, the second toe, and the third toe. toe, fourth toe, fifth toe, sixth toe, seventh toe. The toe 8, toe length L i with toe width W i Satisfy:

[0071] L i =m×W i

[0072] Among them: m is the size factor, its value is 4;

[0073] The distance between the i+1 toe and the i toe is S i , where S i =p×L i

[0074] Among them: p is the size factor, its value is 0.6;

[0075] The distance from the first toe to the straight line di is S 0 , where S 0 =q×L 1

[0076] Among them: q is the size factor, its value is 0.42;

[0077] Free transition between the toes through arc curves;

[0078] Toe width W 1 =5mm, toe width W i Decrease successively with the difference d as an arithm...

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Abstract

The invention provides a tooth-toe type rotary tillage knife and belongs to the technical field of agricultural machines. The tooth-toe type rotary tillage knife is composed of a knife handle and a knife body. The knife body comprises a lateral cutting surface and a front cutting surface, the lateral cutting surface is provided with a lateral cutting edge of a trapezoidal toothed structure, the front cutting surface is provided with a front cutting edge of a multi-toe structure, each toe is rectangular, the ratio of length to width is 2-6, the toe widths are sequentially declined in an arithmetic sequence, the toe tip structure is trapezoidal, and every two toes are in transitional connection through an arc. According to the tooth-toe type rotary tillage knife, on the premise that the normal work of the rotary tillage knife is ensured, the penetration resistance of knife blades can be reduced, the anti-grass-winding capacity is high, the soil cutting mode of the front cutting surface is changed into a multi-narrow-blade combined synergistic soil cutting mode from a wide-blade soil cutting mode, the soil failure form is transformed into a combined crescent failure form from a wedge-shaped failure form, and the size of the toe-type structure can be changed according to different soil viscosities, so that the soil cutting resistance is effectively reduced, and the aims of resistance reduction and consumption reduction of the rotary tillage knife are achieved.

Description

technical field [0001] The invention belongs to the technical field of agricultural machinery, and in particular relates to a tooth-toe type rotary tiller. Background technique [0002] Driven tillage machinery has been widely used in modern agricultural machinery. During the operation, the working parts rotate and advance with the machine to continuously cut and loosen the soil. This machine has the advantages of reducing the number of times that agricultural machinery goes to the ground, preempting the farming time, fully crushing the soil, leveling the ground surface after plowing, and giving full play to the power of the tractor. 6 times. Moreover, as the key working part of the rotary tiller - the rotary tiller, the power consumption of the interaction with the soil accounts for 60% to 70% of the total power consumption of the whole machine. Therefore, the drag reduction design of the rotary tiller is to reduce the The key to job power consumption. [0003] Chinese ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01B33/10
Inventor 佟金杨玉婉孙霁宇李默马云海陈东辉
Owner JILIN UNIV
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