阅读说明：本技术 一种并联运动的组合波浪筛式玉米籽粒清选机构 (Parallel-motion combined wave screen type corn grain cleaning mechanism ) 是由 王立军 李懿航 王后升 王英帅 于锟蒙 于 2020-11-03 设计创作，主要内容包括：一种并联运动的组合波浪筛式玉米籽粒清选机构属于农业机械；在框架总成上分别安装驱动轴,曲轴,“V”形固定板,在驱动轴上依次固装主动锥齿轮和驱动带轮,在曲轴上固装从动锥齿轮,主动锥齿轮和从动锥齿轮啮合,在两个“V”形固定板上固装一根连接轴,两个波浪筛片铰链,并套装在上述连接轴,四个短连杆的一端与曲轴套装,另一端与销轴铰接,所述销轴与波浪筛片铰链,本机构通过曲轴带动组合波浪筛运动,既实现了组合波浪筛沿连接轴平动和绕连接轴转动的多自由度运动,又实现了玉米籽粒的多维透筛,当清选机构中物料喂入量较大,或含水率较高时,本机构能够提高其分散效率,具有结构设计新颖、合理、清选能力强等特点。(A parallel moving combined wave sieve type corn grain cleaning mechanism belongs to agricultural machinery; a driving shaft, a crankshaft and a V-shaped fixing plate are respectively arranged on the frame assembly, a driving bevel gear and a driving belt wheel are sequentially and fixedly arranged on the driving shaft, a driven bevel gear is fixedly arranged on the crankshaft, the driving bevel gear is meshed with the driven bevel gear, a connecting shaft and two wavy sieve sheet hinges are fixedly arranged on the two V-shaped fixing plates, and is sleeved on the connecting shaft, one end of each short connecting rod is sleeved with the crankshaft, the other end of each short connecting rod is hinged with the pin shaft, the pin shaft is hinged with the wave sieve sheet, the mechanism drives the combined wave sieve to move through the crankshaft, thereby not only realizing multi-degree-of-freedom movement of the combined wave sieve along the translation of the connecting shaft and around the connecting shaft, but also realizing multi-dimensional sieving of corn grains, when the feeding amount of materials in the cleaning mechanism is larger, or when the moisture content is higher, this mechanism can improve its dispersion efficiency, has characteristics such as structural design is novel, reasonable, cleaning ability reinforce.)

1. The utility model provides a mechanism is cleaned to parallel motion's combination wave sieve formula maize seed grain which characterized in that: a rotatable driving shaft (10) is arranged in the middle of the outer portion of the left side or the right side of a frame assembly (1), two driving bevel gears (8) are fixedly arranged at two ends of the driving shaft (10), a driving belt wheel (9) is fixedly arranged at one end of the driving shaft (10), two crankshafts (5) are arranged at the front position and the rear position of the frame assembly (1), two driven bevel gears (7) are fixedly arranged on the same side of the two crankshafts (5) respectively and are meshed with the two driving bevel gears (8) on the driving shaft (10) respectively. The upper ends of the front position and the rear position of the frame assembly (1) are fixedly provided with a V-shaped fixing plate (2), the center of the fixing plate (2) is fixedly connected with a connecting shaft (11), and two wave sieve sheets (12) are hinged and sleeved on the connecting shaft (11). Two short connecting rods (4) which can move horizontally and rotate around the crankshafts (5) are respectively sleeved at the crank throw positions of the front crankshaft (5) and the rear crankshaft (5), the other ends of the four short connecting rods (4) are hinged with two pin shafts (3), the pin shafts (3) are hinged with two sieve sheets (12), and the material receiving box (6) is arranged at the bottom of the frame assembly (1).

Technical Field

The invention belongs to agricultural machinery, and mainly relates to a combined wave screen type corn grain cleaning mechanism with parallel motion

Background

The motion form of the existing corn grain cleaning mechanism is mostly reciprocating vibration in a plane, the motion form is single, the screen surface is mostly a plane screen, the one-dimensional sieve penetration of the corn grains can only be realized, the material feeding amount in the middle of the cleaning mechanism is large, or the water content is high, the material is not easy to disperse, the sieve mesh blockage is caused by easy accumulation, the operation efficiency is not high, and the cleaning effect and the cleaning quality are poor.

Disclosure of Invention

The invention aims to solve the technical problems, develop a combined wave sieve type corn grain cleaning mechanism with parallel motion, and realize multi-degree-of-freedom motion of a sieve surface and multi-dimensional sieve penetration of corn grains, thereby achieving the purposes of improving the corn grain cleaning work efficiency and the operation quality.

The invention aims to realize the purpose that the combined wave sieve type corn kernel cleaning mechanism with parallel motion is characterized in that: the frame assembly is characterized in that a rotatable driving shaft is arranged outside the left side or the right side of the frame assembly, two driving bevel gears are fixedly arranged at two ends of the driving shaft, one driving belt wheel is fixedly arranged at one end of the driving shaft, two crankshafts are arranged at the front position and the rear position of the frame assembly, and two driven bevel gears are respectively fixedly arranged on the same side of the two crankshafts and are respectively meshed with the two driving bevel gears on the driving shaft. The upper ends of the front position and the rear position of the frame assembly are fixedly provided with a V-shaped fixed plate, the central position of the fixed plate is fixedly connected with a connecting shaft, and the two wave sieve sheets are hinged and sleeved on the connecting shaft. Two short connecting rods which can horizontally move and rotate around the crankshafts are respectively sleeved at the crank throws of the front crankshaft and the rear crankshaft, the other ends of the four short connecting rods are hinged with two pin shafts, the pin shafts are hinged with two sieve sheets, and the material receiving box is arranged at the bottom of the frame assembly, so that the combined wave sieve type corn grain cleaning mechanism with parallel motion is formed.

According to the technical scheme, the two wave sieve sheets reciprocate forwards and backwards along the connecting shaft and rotate around the connecting shaft, when the mechanism works, the two wave sieve sheets vibrate fed materials, due to the fact that the wave sieve surfaces have groove structures, the handling capacity of the materials can be improved, corn grains can be screened in the grooves in multiple dimensions in the vertical and horizontal directions, the screened corn grains are rapidly dispersed and screened and are moved forwards, and the effect of combining the multidimensional movement and the multidimensional screening is achieved. Has the characteristics of novel and reasonable structural design, good dispersion effect, high operation efficiency, strong cleaning capability and the like.

Drawings

FIG. 1 is a schematic diagram of the general structure of a combined wave screen type corn kernel cleaning mechanism with parallel motion

FIG. 2 is a front view of FIG. 1

FIG. 3 is a top view of FIG. 1

FIG. 4 is a schematic structural view of a combined wave screen

FIG. 5, FIG. 6 and FIG. 7 are schematic diagrams of three motion states of the combined wave screen

Description of part numbers in the figures:

1. frame assembly, 2, V-shaped fixing plate, 3, pin shaft, 4, short connecting rod, 5, crankshaft, 6, material receiving box, 7, driven bevel gear, 8, driving bevel gear, 9, driving belt wheel, 10, driving shaft, 11, connecting shaft, 12, wave sieve sheet, 13, material blocking plate, 14, pin shaft connecting hole, 15, groove, 16 and connecting shaft hole

Detailed Description

The embodiment of the invention is described in detail by combining the attached drawings, and the combined wave screen type corn kernel cleaning mechanism with parallel motion is characterized in that a rotatable driving shaft 10 is arranged outside the left side or the right side of a frame assembly 1, two driving bevel gears 8 are fixedly arranged at two ends of the driving shaft 10, a driving belt wheel 9 is fixedly arranged at one end of the driving shaft 10, two crankshafts 5 are arranged at the front position and the rear position of the frame assembly 1, and two driven bevel gears 7 are respectively fixedly arranged at the same side of the two crankshafts 5 and are respectively meshed with the two driving bevel gears 8 on the driving shaft 10. The upper ends of the front position and the rear position of the frame assembly 1 are fixedly provided with a V-shaped fixed plate 2, the central position of the fixed plate 2 is fixedly connected with a connecting shaft 11, two wave sieve sheets 12 are hinged and sleeved on the connecting shaft 11, two short connecting rods 4 which can translate and rotate around the crankshaft 5 are respectively sleeved at the crank throw positions of the front crankshaft 5 and the rear crankshaft 5, the other ends of the four short connecting rods 4 are hinged with two pin shafts 3, then the pin shafts 3 are hinged with the two sieve sheets 12, and a material receiving box 6 is arranged at the bottom of the frame assembly 1, so that the combined wave sieve type corn kernel cleaning mechanism with parallel motion is formed.

During operation, external input power passes through the driving belt wheel 9, the driving shaft 10, the two driving bevel gears 8 and the two driven bevel gears 7 to respectively drive the two crankshafts 5 at the front end and the rear end of the frame assembly 1 to rotate, and the front crankshaft 5 and the rear crankshaft 5 respectively drive the wave screen piece 12 to make the wave screen piece perform combined motion of translation along the connecting shaft 11 and rotation around the connecting shaft 11 through the four short connecting rods 4 and the pin shaft 3.

The situation of fig. 5, 6, 7 occurs because the two undulating screen segments 12 are hinged. When the two wave sieve plates 12 are in the state shown in fig. 6, the materials on the sieve quickly diffuse to the two sides of the connecting shaft hole 16 and are uniformly distributed in each wave groove 15. The materials fall from the right above the frame assembly 1, and the processing capacity in the middle of the combined wave sieve 12 is larger, so that the wave structure of the wave sieve 12 is designed to be in a gradual change form, the depth of the wave groove 15 is gradually reduced from the middle to two sides, corn grains can be uniformly distributed under the motion of the wave sieve 12, and the working efficiency of the mechanism is further improved; when the two wave sieve sheets are in the state shown in the figure 7, the materials on the sieve are vibrated and gathered towards the center, under the coordination of a fan (not shown in the figure), corn grains and impurities are separated and continuously moved towards the rear part of the mechanism, the size structure of the crankshaft 5 is changed according to the operation requirement, the connecting position of the short connecting rod 4 and the pin shaft connecting hole 14 on the wave sieve 12 is adjusted, and the amplitude and the rotating angle of the motion of the wave sieve 12 can be changed so as to meet and adapt to the requirements of different conditions.