CN215683480U

CN215683480U - Harvester threshing teeth top cap

Info

Publication number: CN215683480U
Application number: CN202121798876.7U
Authority: CN
Inventors: 刘军兴; 董献华; 邱文良
Original assignee: Jiangxi Liantian Agricultural Machinery Co ltd
Current assignee: Jiangxi Liantian Agricultural Machinery Co ltd
Priority date: 2021-08-03
Filing date: 2021-08-03
Publication date: 2022-02-01
Anticipated expiration: 2031-08-03

Abstract

The utility model provides a top cover of a threshing chamber of a harvester, which comprises a top cover, an adjusting handle, a pull rod and a plurality of adjustable grass guiding mechanisms which are uniformly distributed in the top cover at intervals, wherein the section of the top cover comprises a first arc edge, a vertical edge, a transverse edge and a second arc edge which are sequentially connected, the radius of the first arc edge is smaller than that of the second arc edge, the length of the vertical edge is smaller than that of the transverse edge, the vertical edge is arranged on the outer side of the first arc edge, and the grass guiding mechanisms are tightly attached to the vertical edge, the transverse edge and the second arc edge.

Description

Harvester threshing teeth top cap

Technical Field

The utility model relates to a threshing device of a harvester, in particular to a top cover of a threshing chamber of the harvester.

Background

The grain threshing machine body is a main component of the harvester, and the threshing and cleaning cleanness directly influences the performance of the whole harvester. The existing combine harvester usually comprises a threshing cylinder and a threshing chamber top cover above the threshing cylinder, the structural design of the threshing chamber top cover of the threshing cylinder plays a crucial role in threshing, for example, the Chinese utility model 'a harvester threshing chamber top cover' with the authorization notice number CN213603284U of my department, wherein the top cover is designed into a complete circular arc shape (for convenient observation, the cross section of the top cover is shown as shown in figure 1), a baffle (15) is welded inside the top cover, the baffle (15) is welded to be convenient for fixing a straw guide mechanism (4), grains flow through the top cover (1), need to firstly impact the baffle (15) and then enter the straw guide mechanism (4), grains enter the threshing chamber in the early stage, because the grains are extremely numerous, the baffle (15) blocks the grains and the straws to be extruded into a whole, the grains have poor fluidity in the cylinder, the threshing efficiency is low, and the grains are especially more prominent when the grain feeding amount is large, at this time, more power consumption is required to separate grains for increasing threshing efficiency, and the service life of the top cover (1) is shortened due to the impact of the grains.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model aims to provide a top cover of a threshing chamber of a harvester, which can effectively save power consumption and is beneficial to prolonging the service life of the top cover by optimizing the structure of the top cover under the condition of ensuring the same threshing efficiency. In order to achieve the purpose, the utility model adopts the following technical scheme:

(II) technical scheme

The utility model provides a harvester threshing teeth top cap, includes that top cap, adjustment handle, pull rod and a plurality of even interval distribution install lead careless mechanism with adjustable in the top cap, the cross-section of top cap is including the first circular arc limit that connects gradually, erect limit, horizontal limit and second circular arc limit, the radius on first circular arc limit is less than the radius on second circular arc limit, the length on perpendicular limit is less than the length on horizontal limit just erect the limit setting and be in the first circular arc limit outside, it closely laminates to lead careless mechanism erect limit, horizontal limit and the setting of second circular arc limit.

Further, the other ends of the first arc edge and the second arc edge are bent.

(III) advantageous effects

Compared with the prior art, the top cover structure has obvious advantages and beneficial effects, and particularly, the baffle is reduced through optimizing the top cover structure, so that no resistance is generated for blocking grains and straws once the grains and the straws enter the top cover, the grains and the straws cannot be extruded into a cluster, the later threshing efficiency is higher, the power consumption can be effectively saved under the condition of ensuring the same threshing efficiency, and meanwhile, the service life of the top cover is favorably prolonged.

Drawings

FIG. 1 is a cross-sectional view of a front overcap;

FIG. 2 is a cross-sectional view of the present invention;

fig. 3 is a perspective view of the present invention.

The reference numbers illustrate:

1. top cover 11, first arc edge 12 and vertical edge

13. Transverse edge 14, second arc edge 15 and baffle plate

2. Adjusting handle 3, pull rod 4 and grass guiding mechanism

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

The utility model is further described with reference to the following detailed description and accompanying drawings.

Referring to fig. 2 to 3, a top cover of a threshing chamber of a harvester comprises a top cover 1, an adjusting handle 2, a pull rod 3 and a plurality of adjustable grass guiding mechanisms 4 which are uniformly distributed in the top cover 1 at intervals, wherein the pull rod 3 is connected with the grass guiding mechanisms 4, the adjusting handle 2 is used for controlling the inclination of the grass guiding mechanisms 4, the grass guiding mechanisms 4 are designed to be two-section split arc-shaped structures, the cross section of the top cover 1 comprises a first arc edge 11, a vertical edge 12, a transverse edge 13 and a second arc edge 14 which are sequentially connected, the radius of the first arc edge 11 is smaller than that of the second arc edge 14, the length of the vertical edge 12 is smaller than that of the transverse edge 13, the vertical edge 12 is arranged on the outer side of the first arc edge 11, the grass guiding mechanisms 4 are tightly attached to the vertical edge 12, the transverse edge 13 and the second arc edge 14, so that grains can smoothly enter the grass guiding mechanisms 4 after flowing through the first arc edge 11 in the top cover 1, no blocking exists in the way, grains and straws cannot be extruded into a ball, and the threshing efficiency is higher under the same power consumption.

In order to facilitate the fixed installation of the two sides of the top cover 1, the other ends of the first arc edge 11 and the second arc edge 14 are bent.

According to the utility model, by optimizing the structure of the top cover, compared with the prior art, the baffle is reduced, so that no resistance is generated for blocking grains and straws when the grains and the straws enter the top cover, the grains and the straws cannot be extruded into a cluster, the later threshing efficiency is higher, the power consumption can be effectively saved under the condition of ensuring the same threshing efficiency, and the service life of the top cover is prolonged.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any minor modifications, equivalent changes and modifications made to the above embodiment according to the technical spirit of the present invention are within the technical scope of the present invention.

Claims

1. The utility model provides a harvester threshing teeth top cap, includes that top cap, adjustment handle, pull rod and a plurality of even interval distribution install lead careless mechanism with adjustable in the top cap, its characterized in that: the cross-section of top cap is including the first circular arc limit that connects gradually, erect limit, horizontal limit and second circular arc limit, the radius on first circular arc limit is less than the radius on second circular arc limit, the length on perpendicular limit is less than the length on horizontal limit just erect the limit setting and be in the first circular arc limit outside, it closely laminates to lead grass mechanism erect limit, horizontal limit and second circular arc limit setting.

2. The harvester threshing chamber roof of claim 1, wherein: and the other ends of the first arc edge and the second arc edge are bent.