Dust collection structure in front of the vibrating plate

Abstract

The invention provides a front dust collector structure of a vibrating plate. A dust collector section is fixed between a front material plate for guiding grains downward and a fan cover located below the front material plate. The width of the dust collector section is not less than the width of the vibrating plate surface between the front material plate and the fan cover. Two opposite edges in the transverse direction of the dust collector section correspond to the left and right walls of the frame, respectively, and are at a suitable distance. An opening communicating with the vibrating plate is surrounded by the front material plate at the upper part. The fan cover at the bottom and the left and right walls of the frame are blocked by the dust collector section, and the grain falls into the grain collection area at the bottom of the vibrating plate along the fan cover. Therefore, the grain is prevented from being thrown out of the opening and falling to the ground, resulting in waste.

Description

Dust collector structure in front of vibrating plate Technical background This invention relates to the technical field of agricultural machinery and, in particular, to the structure of a dust collector in front of a vibrating plate. Background The threshing system of the crawler combine can be divided into two types: longitudinal axial flow threshing and cleaning system and transverse axial flow threshing and cleaning system. These two types of threshing and cleaning systems are the main forms of structures currently used in the market. The existing combine harvester is divided into a threshing area, a screening area and a wind selection area from top to bottom. In the screening area, the separation and screening of residues, such as crop grains and straw, is carried out through the reciprocating vibration of the vibrating plate, which moves reciprocatingly along an elliptical vibration path. Although a front corrugated plate on the vibrating plate is inclined downward toward the end of the harvester to guide the movement of the crops, the vibrating component of the vibrating plate in the horizontal direction still causes the grains to be thrown out from the front end of the vibrating plate. In the prior art, to solve the above technical problems, a tarpaulin is placed at the front end of the vibrating plate for protection. However, the vibrating plate is continuously working when working. To adapt to the amplitude of the vibrating plate, the tarpaulin needs to have sufficient tension and cannot be fixed, so there will be gaps between the tarpaulin and the vibrating plate and between the tarpaulin and the left and right walls of the frame. During the vibration, the gaps will increase from time to time, which will lead to the crop grains leaking and falling to the ground from the front of the frame, so that the crop grains cannot be collected, which will cause waste. Summary Therefore, the technical problem to be solved by this invention lies in overcoming the grain leakage and waste of the harvester screening system in the prior art. To this end, this invention provides a dust collection structure in front of a vibrating plate, which includes the following: A dust collecting section is fixed between a front material plate and a fan cover located below the front material plate, wherein the width of the dust collecting section is not less than the width of the plate surface between the front material plate and the fan cover, and The two opposite edges in the transverse direction of the dust collector section are fixed on the left and right walls of a frame, respectively. The gaps between the two side edges of the dust collector section and the left and right walls of the frame are filled with sealant. At least one viewing window is located in the dust collector section, and a transparent viewing section is placed over the viewing window. The visual section is closed to the viewing port by a butterfly nut. The visual part is an acrylic or glass screen. The dust collector section is a dust collector plate. One end of the dust collector plate is flanged and connected to the lower surface of the front material plate, and the other end is fixed on the outer wall surface of the fan cover. The structure of the dust collector in front of the vibrating screen includes the following: The first protective section is located between the front material plate and the front plate of the vibrating plate, wherein the first protective section is a flexible section having an additional margin for the reciprocating vibration of the vibrating plate. The width of the first protective section is not smaller than the width of the vibrating plate. The structure of the dust collector in front of the vibrating screen includes the following: The second protective section, one end of which is fixed to one end of the front material plate facing the vibrating plate, and the other end is a free end and naturally falls to the surface of the vibrating plate. The first protective section and the second protective section are made of tarpaulin. The technical solution of this invention has the following advantages: The invention provides a front dust collector structure of a vibrating plate. A dust collector section is fixed between a front material plate for guiding grains downward and a fan cover located below the front material plate. The width of the dust collector section is not less than the width of the vibrating plate surface between the front material plate and the fan cover. Two opposite edges in the transverse direction of the dust collector section correspond to the left and right walls of the frame, respectively, and are spaced apart. The opening communicating with the vibrating plate is surrounded by the front material plate at the upper part. The fan cover at the lower part and the left and right walls of the frame are blocked by the dust collector section, and the crop grains fall into the grain collection area at the lower part of the vibrating plate along the fan cover. Therefore, the crop grains are prevented from being thrown out of the opening and falling to the ground, resulting in waste. Brief description of the shapes In order to more clearly illustrate specific embodiments of the invention or technical solutions in the prior art, the figures required to describe specific embodiments or prior art are briefly described below. It is obvious that the figures in the following description are part of the embodiments of the invention and that persons of ordinary skill in the art can derive other figures from these figures without creative work. Figure 1 is a schematic diagram showing the installation structure of a dust collector in an embodiment of the present invention. Figure 2 is a schematic structural diagram of a dust collector structure in front of a vibrating plate in an embodiment of the present invention. Explanations for the symbols in the following figures: H. Vibrating screen. 1. Frame; 1f. Dust collector screen; 11f. Viewing port; 2f. Front material screen; 3f. Fan cover; 4f. Visual section; 5f. Screen front plate; 6f. First protection section; 7f. Second protection section; 8f. Butterfly nut Description with details The technical solutions of this invention, in combination with the accompanying figures, are clearly and completely explained below, and it is clear that the described embodiments are part of the embodiments of this invention. Based on the embodiments of this invention, all other embodiments obtained by persons of ordinary skill in the art without any creative work are within the scope of protection of this invention. In describing this invention, it should be noted that the orientation or positional relationship indicated by terms such as “center,” “top,” “bottom,” “left,” “right,” “vertical,” “horizontal,” “inside,” “outside” is the orientation or positional relationship based on the accompanying figures. Such terms are merely for convenience in explaining this invention and simplifying the description and are not intended to indicate or imply that the device or part in question must be located in a particular orientation or must be constructed or operated in a particular orientation. Accordingly, such terms should not be construed as a limitation of this invention. Furthermore, the terms “first” and “second” are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In explaining this invention, it should be noted that unless otherwise specified and defined, terms such as "mounted", "connected" and "connection" should be understood in their broad sense, for example, the connection can be a fixed connection, a detachable connection or an integral connection, a mechanical connection or an electrical connection, a direct or indirect connection through an intermediary and a connection between two parts. For those of ordinary skill in this art, the specific meanings of the above terms in this invention can be understood with regard to the specific circumstances. Furthermore, the technical features involved in the various embodiments of this invention described below can be combined with each other as long as no conflict arises between them. Visualization 1 This embodiment presents a front dust collector structure of a vibrating plate. A front material plate 2f is provided below the threshing drum for guiding the crop grains downward. One end of the front material plate 2f is fixed to the front frame 1. The plate surface is inclined downward from the front end of the frame 1 to the end of the frame 1. The other end of the front material plate 2f is located above the vibrating plate H and within the orthographic protrusion of the vibrating plate H on the horizontal plane. As shown in Figure 1, the dust collecting section is fixed between a front material plate 2f and a fan cover 3f located under the front material plate 2f. The width of the dust collecting section is not less than the width of the vibrating plate surface H between the front material plate 2f and the fan cover 3f. The two opposite edges in the transverse direction of the dust collecting section are respectively fixed to the left and right side walls of the frame 1. In this embodiment, the dust collecting section is a dust collecting plate 1f, the upper end of the dust collecting plate 1f is flanged and connected to the lower surface of the front material plate 2f through a screw, and the lower end is fixed to the flanged end of the fan cover 3f through a screw. The gaps caused by processing errors between the two side edges of the dust collecting plate 1f and the left and right side walls of the frame 1 are filled with sealant. In this embodiment, as shown in Fig. 1 or 2, the dust collector plate 1f is curved. A portion close to the front material plate 2f is vertical, and a portion close to the fan cover 3f is inclined. Thus, an inclined surface is formed with the outer wall surface of the fan cover 3f, and thus, the product grains leaking from the vibrating plate H are guided. As shown in Fig. 1, at least one viewing port is provided in the vertical portion of the dust collector plate 1f. In this embodiment, two viewing ports are provided. Each viewing port is fixed with a viewing port 4f through a butterfly nut 8f for viewing the accumulation of products that cannot be detected by the vibrating plate H. The viewing port 4f may be a transparent acrylic plate or a glass plate, preferably an acrylic plate that is lightweight and not easily broken. The opening communicating with the vibrating plate H is closed by the front material plate 2f at the upper part. The fan cover 3f at the lower part and the left and right walls of the frame 1 are blocked by the dust collector plate 1f, and the crop grains are returned to the grain collection area at the lower part of the vibrating plate H along the fan cover 3f by blocking the dust collector plate 1f. As a result, the crop grains are prevented from falling out of the opening and falling to the ground, resulting in waste. In addition, as shown in Fig. 2, a first guard portion 6f is provided to prevent the accumulation of crop grains between the fan cover 3f and the dust collector plate 1f. One end of the first guard portion 6f is fixed to one end of the front material plate 2f above the vibrating plate H, and the other end of the first guard portion 6f is fixed to the front plate of the plate 5f at the frontmost end of the vibrating plate H. The first guard portion 6f is set at a certain angle with the surface of the vibrating plate H. The width of the first guard portion 6f is not smaller than the width of the vibrating plate H. The first guard portion 6f is a flexible member that has an additional margin for the reciprocating vibration of the vibrating plate H after its two ends are fixed so that the movement of the vibrating plate H is not affected. As shown in Figure 2, the second protective portion 7f is also fixed to one end of the first protective portion 6f on the front material plate 2f, and the other end of the second protective portion 7f is a free end and naturally falls on the surface of the vibrating screen H. The two-layer protection is realized by the two protective portions. The first protective section 6f and the second protective section 7f are made of tarpaulin. It is understood that the above described embodiments are merely examples for describing the forms and are not limited to the implementation. For those of ordinary skill in the art, other changes or developments in various forms can be made based on the above description. All embodiments herein need not and cannot be exhaustive. Changes or developments that are obvious from them still fall within the scope of the protection of this invention.

Claims

Amended Claims 1. A front sealing structure of a vibrating screen, characterized by comprising: A sealing member, fixed between a front material plate (2f) and a fan shell (3f) located below the front material plate (2f); Wherein, the width of the sealing member is not less than the width of a screen surface of the vibrating screen (H) between the front material plate (2f) and the fan shell (3f); and Two opposite side edges in the width direction of the sealing member are fixed on left and right side walls of a frame (1) respectively, The front sealing structure further comprises: A first shielding member (6f), arranged between the front material plate (2f) and a screen front plate (5f) of the vibrating screen (H); Wherein, the first shielding member (6f) is a flexible member having an extension margin for reciprocating vibration of the vibrating screen (H).

2. The front sealing structure of the vibrating screen according to claim 1, characterized in that clearances between the two side edges of the sealing member and the left and right side walls of the frame (1) are filled with sealant. 3.The front sealing structure of the vibrating screen according to claim 2, characterized in that at least one viewing opening (11f) is arranged in the sealing member; and a transparent visual member (4f) is arranged on the viewing opening (11f).

4. The front sealing structure of the vibrating screen according to claim 3, characterized in that the visual member (4f) is fastened to the viewing opening (11f) by a thumb nut (8f).

5. The front sealing structure of the vibrating screen according to claim 4, characterized in that the visual member (4f) is an acrylic or glass plate.

6. The front sealing structure of the vibrating screen according to claim 3, characterized in that the sealing member is a sealing plate (1f); one end of the sealing plate (1f) is flanged and attached to a lower plate surface of the front material plate (2f); and the other end is fixed on an outer wall surface of the fan shell (3f).

7. The front sealing structure of the vibrating screen according to claim 1, characterized in that the width of the first shielding member (6f) is not smaller than the screen face width of the vibrating screen (H).

8. The front sealing structure of the vibrating screen according to claim 1, characterized by further comprising: A second shielding member (7f), one end of which being fixed on one end of the front material plate (2f) facing the vibrating screen (H), and the other end of which being a free end and naturally drooping to the screen surface of the vibrating screen (H).

9. The front sealing structure of the vibrating screen according to claim 8, characterized in that the first shielding member (6f) and second shielding member (7f) are made of canvas.

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