CN203057890U

CN203057890U - Concave plate sieve of combined-harvester

Info

Publication number: CN203057890U
Application number: CN 201320019054
Authority: CN
Inventors: 刘永会
Original assignee: SUIZHOU SHUANGLI AGRICULTURAL MACHINERY MANUFACTURING Co Ltd
Current assignee: SUIZHOU SHUANGLI AGRICULTURAL MACHINERY MANUFACTURING Co Ltd
Priority date: 2013-01-15
Filing date: 2013-01-15
Publication date: 2013-07-17
Anticipated expiration: 2023-01-15

Abstract

The utility model provides a concave plate sieve of a combined-harvester. The concave plate sieve of the combined-harvester is of an arc-shaped net structure and is composed of vertical baffles plate and crosswise steel wires. The concave plate sieve of the combined-harvester is characterized in that the diameter of the crosswise steel wire is Phi 1.5 mm- Phi 3 mm, and a gap between two adjacent crosswise steel wires is 6 mm-10 mm. Due to the fact that the diameter of the crosswise steel wires is smaller than the diameter of the crosswise steel wires of an existing concave plate sieve, the gap between the two adjacent crosswise steel wires is small, thick and big grain leaf stems cannot be leaked from mesh openings of the concave plate sieve along with grains and fall on a vibrating screen on the lower portion. Meanwhile, due to the fact that the gap between the two adjacent crosswise steel wires is small, the grains and thin leaf stems fall to the vibrating screen from the feeding opening end of the concave plate sieve, and the grains and the thin leaf stems on the vibrating sieve are even. The concave plate sieve of the combined-harvester is beneficial for screening the grains by the vibrating screen, and the screened grains are clean. The screening effects to the grains are good. The concave plate sieve of the combined-harvester is good in screening effect to the grains.

Description

The combine concave grate

Technical field

The utility model relates to a kind of combine, particularly relates to a kind of combine concave grate.

Background technology

The concave grate of combine is the parts in the combine shelling chamber, its effect is that the cereal after the threshing is screened, grain and tiny cereal leaf bar leak down to fall within the vibratory sieve of below from the mesh of concave grate, and thick cereal leaf bar is thrown out of from the grass outlet of concave grate.

The patent No. is a kind of combine combined type concave grate of 201220114168.1, comprise two sub-concave grates, each sub-concave grate comprises that one is gone up engage a gear plate and overhead gage, overhead gage one side connects one group of curved baffle, the end of curved baffle connects a lower baffle plate, uniform one group of transverse steel wire between overhead gage and the lower baffle plate, uniform one group of longitudinal baffle constitutes screen cloth on the steel wire, lower baffle plate is provided with at least two connecting holes, after the connecting hole alignment of two sub-concave grate lower baffle plates, by connector two sub-concave grates are linked as semicircular combination concave grate.This combine combined type concave grate manufacture difficulty is low, is convenient to the location, is easy to guarantee the overall dimensions of concave grate, the efficiency of assembling height, and convenient disassembly is beneficial to maintenance.

But the patent No. is 201220114168.1 combined type concave grate, and in actual applications, the diameter of transverse steel wire is set to Φ 4mm～Φ 6mm more, and the spacing of two adjacent transverse steel wire is 12mm～20mm.Because the diameter of transverse steel wire is big, the spacing of two adjacent transverse steel wire is also bigger, thicker cereal leaf bar also together leaks down to fall within the vibratory sieve of below from the mesh of concave grate with grain, filter out clean grain to vibratory sieve and brought difficulty, influences the cereal screening effect.

Summary of the invention

The purpose of this utility model provides a kind of combine concave grate, and this combine concave grate is good to the screening effect of cereal.

In order to achieve the above object, combine concave grate of the present utility model is the arc network structure, be made up of longitudinal baffle structure and transverse steel wire, it is characterized in that: the diameter of transverse steel wire is Φ 1.5mm～Φ 3mm, and the spacing of two adjacent transverse steel wire is 6mm～10mm.

Because the diameter of the transverse steel wire of concave grate is Φ 1.5mm～Φ 3mm, the spacing of two adjacent transverse steel wire is 6mm～10mm, diameter than the transverse steel wire of existing concave grate is little, the spacing of two adjacent transverse steel wire is also little, and thicker cereal leaf bar can not leak down to fall within the vibratory sieve of below with grain from the mesh of concave grate; Simultaneously, can be not big because of the spacing of two adjacent transverse steel wire, grain and spire bar are all fallen on the vibratory sieve from the feed inlet end of concave grate, make grain and spire bar on the vibratory sieve even, be conducive to vibratory sieve to the screening of cereal, the cereal that filters out is cleaner, and the screening effect of cereal is good.

Described combine concave grate is characterized in that: the diameter of transverse steel wire is Φ 2mm, and the spacing of two adjacent transverse steel wire is 8mm.

The utility model combine concave grate is good to the screening effect of cereal.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment.

Fig. 2 is that the K of Fig. 1 is to view.

Fig. 3 is the axle side shaft of Fig. 1.

Embodiment

The description of symbols of Fig. 1: horizontal edge plate 1, transverse steel wire 2, longitudinal baffle 3, longitudinal edge plate 4, grass outlet 5, charging aperture 6.

Referring to Fig. 1, the embodiment of the utility model combine concave grate is the arc network structure, formed by longitudinal baffle 3 structures and transverse steel wire 2, be provided with horizontal edge plate 1 at the axial two ends of arc network structure, be provided with longitudinal edge plate 4 in the circumferential both sides of arc network structure, two ends, end at discharging opening is provided with grass outlet 5, is provided with charging aperture 6 at the other end of discharging opening.

Among the embodiment, the diameter of transverse steel wire 2 is Φ 2mm, and the spacing of two adjacent transverse steel wire 2 is 8mm.

Because the diameter of the transverse steel wire of concave grate 2 is littler than the diameter of the transverse steel wire 2 of existing concave grate, the spacing of two adjacent transverse steel wire 2 is also little, and thicker cereal leaf bar can not leak down to fall within the vibratory sieve of below with grain from the mesh of concave grate; Simultaneously, can be not big because of the spacing of two adjacent transverse steel wire 2, grain and spire bar are all fallen on the vibratory sieve from charging aperture 6 ends of concave grate, make grain and spire bar on the vibratory sieve even, be conducive to vibratory sieve to the screening of cereal, the cereal that filters out is cleaner, and the screening effect of cereal is good.

The utility model combine concave grate, good to the screening effect of cereal, applying of it has positive meaning to screening effect, the raising grain header efficient that improves combine cereal.

Claims

1. the combine concave grate is the arc network structure, is made up of longitudinal baffle structure and transverse steel wire, it is characterized in that: the diameter of transverse steel wire is Φ 1.5mm～Φ 3mm, and the spacing of two adjacent transverse steel wire is 6mm～10mm.

2. combine concave grate according to claim 1, it is characterized in that: the diameter of transverse steel wire is Φ 2mm, the spacing of two adjacent transverse steel wire is 8mm.