阅读说明：本技术 八键花键轴九条螺旋线除草齿辊 (Eight-key spline shaft nine-helix weeding tooth roller ) 是由 付雅晶 张亚华 黄清忠 佟永丰 张修春 于 2020-07-17 设计创作，主要内容包括：八键花键轴九条螺旋线除草齿辊属于农业机械；在八槽花键套的外部上沿圆周方向顺时针均布依次安装第一、二、三、四、五、六、七、八、九除草齿,第一除草齿的径向中心线与八槽花键套上的定位槽径向中心线重合,在八键花键轴上沿圆周方向顺时针均布依次设置第一、二、三、四、五、六、七、八键齿,在八键花键轴上从左至右沿圆周方向相互交叉错位的依次套配固装九个八槽花键套,构成在圆周方向和轴向方向上均布且相互平行的九条除草齿螺旋线；本辊结构新颖、独特、合理,除草作业质量好,动力消耗少,机具运行平稳。(Nine spiral weeding tooth rollers of an eight-key spline shaft belong to agricultural machinery; the eight-groove spline housing is characterized in that first, second, third, fourth, fifth, sixth, seventh, eighth and ninth weeding teeth are sequentially and uniformly distributed on the outer part of the eight-groove spline housing along the circumferential direction in a clockwise manner, the radial center line of the first weeding teeth is overlapped with the radial center line of a positioning groove on the eight-groove spline housing, first, second, third, fourth, fifth, sixth, seventh and eighth weeding teeth are sequentially and uniformly distributed on the eight-key spline shaft along the circumferential direction in a clockwise manner, and the nine eight-groove spline housings are fixedly sleeved on the eight-key spline shaft in a mutually crossed and staggered manner along the circumferential direction from left to right to form nine weeding tooth spiral lines which are uniformly distributed in the circumferential direction and in the axial direction and are parallel to each other; the roller has novel, unique and reasonable structure, good weeding operation quality, less power consumption and stable operation of machines.)

1. The utility model provides an eight key integral key shaft nine helices weeding fluted rollers which characterized in that: the eight-groove spline housing is characterized in that a first weeding tooth (2-1), a second weeding tooth (2-2), a third weeding tooth (2-3), a fourth weeding tooth (2-4), a fifth weeding tooth (2-5), a sixth weeding tooth (2-6), a seventh weeding tooth (2-7), an eighth weeding tooth (2-8) and a ninth weeding tooth (2-9) are sequentially and uniformly distributed on the outer part of the eight-groove spline housing (2) along the circumferential direction in a clockwise manner, and the radial center line of the first weeding tooth (2-1) is coincided with the radial center line of a positioning groove (3) on the eight-groove spline housing (2); the eight-key spline shaft (1) is uniformly and clockwise provided with a first key tooth (1-1), a second key tooth (1-2), a third key tooth (1-3), a fourth key tooth (1-4), a fifth key tooth (1-5), a sixth key tooth (1-6), a seventh key tooth (1-7) and an eighth key tooth (1-8) along the circumferential direction; nine eight-groove spline sleeves (2) are sequentially sleeved and fixedly arranged on the eight-key spline shaft (1) from left to right, wherein a positioning groove (3) on the first eight-groove spline sleeve (2) from left to right is clamped and sleeved with first key teeth (1-1) on the eight-key spline shaft (1), a positioning groove (3) on the second eight-groove spline sleeve (2) is clamped and sleeved with fifth key teeth (1-5) on the eight-key spline shaft (1), a positioning groove (3) on the third eight-groove spline sleeve (2) is clamped and sleeved with second key teeth (1-2) on the eight-key spline shaft (1), a positioning groove (3) on the fourth eight-groove spline sleeve (2) is clamped and sleeved with sixth key teeth (1-6) on the eight-key spline shaft (1), a positioning groove (3) on the fifth eight-groove spline sleeve (2) is sheathed and sleeved with third key teeth (1-3) on the eight-key spline shaft (1), the positioning groove (3) on the sixth eight-groove spline housing (2) is clamped and sleeved with the seventh key teeth (1-7) on the eight-key spline shaft (1), the positioning groove (3) on the seventh eight-groove spline housing (2) is clamped and sleeved with the fourth key teeth (1-4) on the eight-key spline shaft (1), the positioning groove (3) on the eighth eight-groove spline housing (2) is clamped and sleeved with the eighth key teeth (1-8) on the eight-key spline shaft (1), the positioning groove (3) on the ninth eight-groove spline housing (2) is clamped and assembled with the fifth key teeth (1-5) on the eight-key spline shaft (1), and nine weeding tooth spiral lines which are uniformly distributed in the circumferential direction and the axial direction and are parallel to each other are formed.

Technical Field

The invention belongs to agricultural machinery, and mainly relates to a weeding toothed roller used on a mechanical weeding machine.

Background

In recent years, with the gradual implementation of the policies of 'three reduction' and 'three exemptions' on the use amount of fertilizers, pesticides and chemical herbicides in China, the production of green organic agricultural products is ensured, and mechanical intertillage weeding machines are popularized and used in agricultural production operation. The cultivator-herbicide, in which the weeding roller formed by connecting, combining and assembling the toothed bar and the disc in series is used as a part for cultivating and weeding, is one of the currently used models. However, since the ratch line continuously formed by the plurality of ratch disks on the ratch disk combined weeding roller is a straight line parallel to the axial lead of the weeding roller, the tips of the plurality of ratches simultaneously enter the soil to perform weeding operation during weeding operation, and a plurality of technical problems of high seedling damage rate, increased power consumption, poor running stability of machines and tools and the like need to be solved.

Disclosure of Invention

Aiming at the problems in the prior art, the invention researches and designs an eight-key spline shaft nine spiral line weeding toothed roller by combining the actual requirements of intertillage weeding operation on the use of mechanical intertillage weeding machines, thereby achieving the purposes of low seedling injury rate of mechanical intertillage weeding, reduced power consumption and stable operation of machines.

The purpose of the invention is realized as follows: the eight-groove spline housing is characterized in that a first weeding tooth, a second weeding tooth, a third weeding tooth, a fourth weeding tooth, a fifth weeding tooth, a sixth weeding tooth, a seventh weeding tooth, an eighth weeding tooth and a ninth weeding tooth are sequentially and uniformly arranged on the outer part of the eight-groove spline housing along the circumferential direction in a clockwise manner, and the radial center line of the first weeding tooth is superposed with the radial center line of a positioning groove on the eight-groove spline housing; the eight-key spline shaft is uniformly and clockwise provided with a first key tooth, a second key tooth, a third key tooth, a fourth key tooth, a fifth key tooth, a sixth key tooth, a seventh key tooth and an eighth key tooth along the circumferential direction; nine eight-groove spline sleeves are sequentially sleeved and fixedly mounted on the eight-key spline shaft from left to right, wherein a positioning groove on the first eight-groove spline sleeve from left to right is clamped and sleeved with a first key tooth on the eight-key spline shaft, a positioning groove on the second eight-groove spline sleeve is clamped and sleeved with a fifth key tooth on the eight-key spline shaft, a positioning groove on the third eight-groove spline sleeve is clamped and sleeved with a second key tooth on the eight-key spline shaft, a positioning groove on the fourth eight-groove spline sleeve is clamped and sleeved with a sixth key tooth on the eight-key spline shaft, a positioning groove on the fifth eight-groove spline sleeve is clamped and sleeved with a third key tooth on the eight-key spline shaft, a positioning groove on the sixth eight-groove spline sleeve is clamped and sleeved with a seventh key tooth on the eight-key spline shaft, a positioning groove on the seventh eight-groove spline sleeve is clamped and sleeved with a fourth key tooth on the eight-key spline shaft, the locating slot on the eighth spline housing and the eighth spline tooth on the eight-key spline shaft are clamped into a sleeving fit, the locating slot on the ninth spline housing and the fifth spline tooth on the eight-key spline shaft are clamped into an assembling fit, nine weeding tooth spiral lines which are uniformly distributed in the circumferential direction and the axial direction and are parallel to each other are formed, and the nine weeding tooth rollers with the eight-key spline shaft and the nine spiral lines are formed.

The eight-key spline shaft and the eight-groove spline sleeve with nine weeding teeth are adopted, and the nine eight-groove splines are sleeved on the eight-key spline shaft in a sequentially fixed sleeving manner in a mutually crossed and staggered manner along the circumferential direction to form the nine spiral line weeding tooth rollers of the eight-key spline shaft.

Drawings

FIG. 1 is a schematic view of the overall structure of an eight-key spline shaft nine-helix weeding tooth roller;

FIG. 2 is a right side view of FIG. 1;

FIG. 3 is a schematic structural view of an eight-key spline shaft;

FIG. 4 is a schematic view of an eight-groove spline housing assembled with nine weeding teeth;

FIG. 5 is a three-dimensional schematic diagram of the overall structure of an eight-key spline shaft nine-helix weeding tooth roller.

Description of part numbers in the figures:

1. eight-key spline shaft, 1-1, first key tooth, 1-2, second key tooth, 1-3, third key tooth, 1-4, fourth key tooth, 1-5, fifth key tooth, 1-6, sixth key tooth, 1-7, seventh key tooth, 1-8, eighth key tooth, 2, eight-groove spline sleeve, 2-1, first weeding tooth, 2-2, second weeding tooth, 2-3, third weeding tooth, 2-4 fourth weeding tooth, 2-5, fifth weeding tooth, 2-6, sixth weeding tooth, 2-7, seventh weeding tooth, 2-8, eighth weeding tooth, 2-9, ninth weeding tooth, 3 and positioning groove.

Detailed Description

The following detailed description of the inventive embodiments is provided in connection with the accompanying drawings. A nine-helix weeding toothed roller for an eight-key spline shaft is characterized in that a first weeding tooth 2-1, a second weeding tooth 2-2, a third weeding tooth 2-3, a fourth weeding tooth 2-4, a fifth weeding tooth 2-5, a sixth weeding tooth 2-6, a seventh weeding tooth 2-7, an eighth weeding tooth 2-8 and a ninth weeding tooth 2-9 are sequentially and uniformly distributed on the outer part of an eight-spline shaft 2 along the circumferential direction, and the radial center line of the first weeding tooth 2-1 is superposed with the radial center line of a positioning groove 3 on the eight-spline shaft 2; the eight-key spline shaft 1 is uniformly and clockwise provided with a first key tooth 1-1, a second key tooth 1-2, a third key tooth 1-3, a fourth key tooth 1-4, a fifth key tooth 1-5, a sixth key tooth 1-6, a seventh key tooth 1-7 and an eighth key tooth 1-8 along the circumferential direction; nine eight-groove spline sleeves 2 are sequentially sleeved and fixedly mounted on the eight-key spline shaft 1 from left to right, wherein a positioning groove 3 on the first eight-groove spline sleeve 2 from left to right is clamped and sleeved with a first key tooth 1-1 on the eight-key spline shaft 1, a positioning groove 3 on the second eight-groove spline sleeve 2 is clamped and sleeved with a fifth key tooth 1-5 on the eight-key spline shaft 1, a positioning groove 3 on the third eight-groove spline sleeve 2 is clamped and sleeved with a second key tooth 1-2 on the eight-key spline shaft 1, a positioning groove 3 on the fourth eight-groove spline sleeve 2 is clamped and sleeved with a sixth key tooth 1-6 on the eight-key spline shaft 1, a positioning groove 3 on the fifth eight-groove spline sleeve 2 is clamped and sleeved with a third key tooth 1-3 on the eight-key spline shaft 1, a positioning groove 3 on the sixth eight-groove spline sleeve 2 is clamped and sleeved with a seventh key tooth 1-7 on the eight-key spline shaft 1, the positioning groove 3 on the seventh eight-groove spline housing 2 is clamped and sleeved with the fourth key teeth 1-4 on the eight-key spline shaft 1, the positioning groove 3 on the eighth eight-groove spline housing 2 is clamped and sleeved with the eighth key teeth 1-8 on the eight-key spline shaft 1, and the positioning groove 3 on the ninth eight-groove spline housing 2 is clamped and assembled with the fifth key teeth 1-5 on the eight-key spline shaft 1 to form nine weeding tooth spiral lines which are uniformly distributed in the circumferential direction and the axial direction and are parallel to each other.

During operation, the output rotary power synchronously drives the nine eight-groove spline sleeves 2 to rotate through the eight-key spline shafts 1, and the key teeth on the nine spiral lines sequentially contact with soil, so that intertillage weeding operation is completed in rotary motion.