Air exhaust device for winnowing machine

Abstract

The utility model provides an exhaust device for a winnowing machine, which comprises a mounting frame, a plurality of blowers arranged in the mounting frame, a protective screen plate arranged on the front side surface of the mounting frame, a connecting plate arranged at the upper end of the mounting frame, and a guide post arranged between the connecting plate and the mounting frame, a cleaning brush making contact with the protective net plate is arranged on the outer arc face of the guide column in a sliding mode, and a driving mechanism for driving the cleaning brush to move is arranged on the top wall of the connecting plate. By means of the air exhaust device for the winnowing machine, materials and impurities accumulated on the protective screen plate can be automatically and rapidly cleaned, manual cleaning can be conducted without shutdown, the shutdown time is shortened, and the winnowing efficiency of the materials is indirectly improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of winnowing machine, especially relates to a winnowing machine exhaust device. BACKGROUND

[0002] The winnowing machine is a kind of equipment for separating materials of different densities or sizes by using air flow, and is widely used in agriculture, food processing, pharmaceutical industry and other industries.The exhaust device is an important component of the winnowing machine, and its main function is to control the flow and direction of the discharged air to ensure that the materials can be effectively separated.

[0003] The existing winnowing machine exhaust device generates air by a blower to realize the winnowing separation of materials of different densities or sizes.A protective mesh is usually provided to prevent materials from entering the interior of the blower.However, the protective mesh will inevitably accumulate a large amount of materials and impurities after a long time of use, and personnel need to periodically disassemble, clean and install it, which not only increases the workload, but also causes the interruption of material winnowing due to the shutdown during the disassembly and cleaning process, thereby affecting the continuity and overall efficiency of the production line. SUMMARY

[0004] Therefore, the utility model provides a winnowing machine exhaust device that can automatically and quickly clean the materials and impurities accumulated on the protective mesh without stopping for manual cleaning, thereby indirectly improving the material winnowing efficiency.

[0005] To solve the above technical problems, the utility model adopts the technical scheme of a winnowing machine exhaust device, which comprises a mounting frame, a plurality of blowers arranged inside the mounting frame, a protective mesh arranged on the front side of the mounting frame, a connecting plate arranged at the upper end of the mounting frame, a guide column arranged between the mounting frame and the connecting plate, a cleaning brush in sliding contact with the protective mesh arranged on the outer arc surface of the guide column, a driving mechanism arranged on the top wall of the connecting plate to drive the cleaning brush to move, two sliding frames arranged on the top wall of the connecting plate, the left and right positions of the two sliding frames corresponding to each other, a cavity frame slidingly arranged inside each of the two sliding frames, a rotating frame arranged at the lower end of each of the two cavity frames, a connecting rod rotatably arranged inside each of the two rotating frames, two rotating seats arranged at the upper end of the cleaning brush, the lower end of each of the two connecting rods rotatably connected to the interior of the adjacent rotating seat, a screw rod rotatably arranged inside each of the two sliding frames, the left and right positions of the two screw rods corresponding to each other, and the screw thread directions of the two screw rods opposite to each other, the two cavity frames threadedly connected to the adjacent screw rods, and a driving unit arranged on the top wall of the connecting plate to drive the screw rod to rotate.

[0006] The driving unit comprises a double-shaft motor arranged on the top wall of the connecting plate, and the output shafts on the left and right sides of the double-shaft motor are connected with the inner side ends of the two lead screws through couplings.

[0007] As a further improvement of the utility model, the upper end of the connecting plate is provided with a control panel, and the double-shaft motor and the blower are electrically connected with the control panel.

[0008] As a further improvement of the utility model, the rear side of the mounting frame is provided with a filter plate, and the filter plate is located at the rear side of the blower.

[0009] As a further improvement of the utility model, the left and right sides of the mounting frame are provided with mounting assemblies, the mounting assembly comprises two mounting plates arranged on the left and right sides of the mounting frame respectively, the mounting frame and the mounting plate are fixed through welding, and a plurality of mounting holes are formed in the interiors of the two mounting plates.

[0010] Compared with the prior art, the utility model has the beneficial effects as follows:

[0011] Firstly, the double-shaft motor is controlled to be turned on through the control panel, so that the cleaning brush on the rotating seat moves downward under the limitation of the guide column to scrape off the materials and impurities accumulated on the protective net plate, the materials and impurities accumulated on the protective net plate can be automatically and quickly cleaned, manual cleaning is not needed during shutdown, the shutdown time is reduced, and the winnowing efficiency of the materials is indirectly improved.

[0012] Secondly, when the blower rotates to blow air, the filter plate can filter the external air and blow the filtered air into the interior of the winnower to separate the materials in the interior, so that the materials in the interior are prevented from being polluted by external impurities, and the winnowing quality of the materials is effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] The utility model will be further described in detail in combination with the drawings and specific embodiments.

[0014] Figure 1 It is a structural schematic view of the air exhausting device of the winnower of the utility model;

[0015] Figure 2 It is a front view and sectional view structural schematic view of the utility model;

[0016] Figure 3 It is an enlarged structural schematic view of A of the utility model;

[0017] Figure 4 It is a rear view and exploded structural schematic view of the utility model.

[0018] In the diagram: 101, mounting frame; 102, protective mesh plate; 103, mounting plate; 104, blower; 105, filter plate; 201, connecting plate; 202, sliding frame; 203, cavity frame; 204, connecting rod; 205, guide column; 206, rotating seat; 207, cleaning brush; 208, lead screw; 209, dual-axis motor; 210, rotating frame; 301, control panel. Detailed Implementation

[0019] To better understand this utility model, the following embodiments further illustrate its content, but the scope of protection of this utility model is not limited to the embodiments described below. Numerous specific details are set forth in the following description to provide a more thorough understanding of this utility model. However, it will be apparent to those skilled in the art that this utility model can be practiced without one or more of these details.

[0020] like Figure 1 , 2 As shown, an exhaust device for an air separator includes a mounting frame 101. Multiple blowers 104 are installed inside the mounting frame 101. A protective mesh plate 102 is installed on the front side of the mounting frame 101. A connecting plate 201 is installed at the upper end of the mounting frame 101. A guide post 205 is installed between the connecting plate 201 and the mounting frame 101. A cleaning brush 207, which contacts the protective mesh plate 102, is slidably installed on the outer arc surface of the guide post 205. A driving mechanism for moving the cleaning brush 207 is installed on the top wall of the connecting plate 201. Mounting components are installed on the left and right sides of the mounting frame 101. Each mounting component includes two mounting plates 103 respectively installed on the left and right sides of the mounting frame 101. The left and right positions of the two mounting plates 103 correspond, and multiple mounting holes are opened inside each of the two mounting plates 103.

[0021] like Figure 1 , 2As shown in Figure 3, the driving mechanism includes two sliding frames 202 mounted on the top wall of the connecting plate 201. A cavity frame 203 is slidably mounted inside each of the two sliding frames 202. A rotating frame 210 is mounted at the lower end of each of the two cavity frames 203. A connecting rod 204 is rotatably mounted inside each of the two rotating frames 210. Two rotating seats 206 are mounted at the upper end of the cleaning brush 207, with their left and right positions corresponding. The lower ends of the two connecting rods 204 are rotatably connected to the interior of the adjacent rotating seats 206. Lead screws 208 are rotatably mounted inside each of the two sliding frames 202, with opposite thread directions. The two cavity frames 203 are threadedly connected to the adjacent lead screws 208. A driving unit for driving the lead screws 208 to rotate is mounted on the top wall of the connecting plate 201. The driving unit includes a dual-axis motor 209 mounted on the top wall of the connecting plate 201. The output shafts on the left and right sides of the dual-axis motor 209 are connected to the inner ends of the two lead screws 208 via couplings.

[0022] like Figure 1 As shown, a control panel 301 is provided at the upper end of the connecting plate 201, and the dual-axis motor 209 and the blower 104 are both electrically connected to the control panel 301.

[0023] The exhaust device is installed on the air separator through the mounting holes on the mounting plate 103. Then, the blower 104 is turned on and started through the control panel 301. Then, the personnel add the material to be air-separated into the air separator. The blower 104 blows out air by rotating the impeller, thereby achieving air separation of materials of different densities and sizes. The protective mesh plate 102 can also ensure that the material will not fall into the blower 104 and cause damage during the air separation process.

[0024] When the protective mesh plate 102 has too much material or impurities and needs to be cleaned, the dual-axis motor 209 is turned on by the control panel 301. The output shaft drives the lead screws 208 on both sides to rotate. Since the lead screws 208 on both sides have opposite thread directions, the rotating frames 210 on the hollow frames 203 on both sides move closer to each other under the restriction of the sliding frame 202. This causes the connecting frame inside to rotate and retract, so that the cleaning brush 207 on the rotating seat 206 moves downward under the restriction of the guide column 205 to scrape off the material and impurities accumulated on the protective mesh plate 102.

[0025] According to another embodiment of the present invention, such as Figure 4 As shown, a filter plate 105 is provided on the rear side of the mounting frame 101. When the blower 104 rotates to exhaust air, the filter plate 105 can filter the external air and then blow it into the air separator to sort the internal materials, thus preventing the internal materials from being contaminated by external impurities.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. An exhaust device for an air separator, comprising a mounting frame (101), wherein a plurality of blowers (104) are disposed inside the mounting frame (101), and a protective mesh plate (102) is disposed on the front side of the mounting frame (101), characterized in that: A connecting plate (201) is provided at the upper end of the mounting frame (101). A guide post (205) is provided between the connecting plate (201) and the mounting frame (101). A cleaning brush (207) that contacts the protective mesh plate (102) is slidably provided on the outer arc surface of the guide post (205). A driving mechanism for driving the cleaning brush (207) to move is provided on the top wall of the connecting plate (201).

2. The exhaust device for an air separator as described in claim 1, characterized in that: The driving mechanism includes two sliding frames (202) mounted on the top wall of the connecting plate (201). A cavity frame (203) is slidably mounted inside each of the two sliding frames (202). A rotating frame (210) is mounted at the lower end of each of the two cavity frames (203). A connecting rod (204) is rotatably mounted inside each of the two rotating frames (210). Two rotating seats (206) are mounted at the upper end of the cleaning brush (207). The lower ends of the two connecting rods (204) are rotatably connected to the interior of adjacent rotating seats (206). A lead screw (208) is rotatably mounted inside each of the two sliding frames (202), and the threads of the two lead screws (208) are opposite in direction. The two cavity frames (203) are threadedly connected to adjacent lead screws (208). A driving unit for driving the lead screws (208) to rotate is mounted on the top wall of the connecting plate (201).

3. The exhaust device for an air separator as described in claim 2, characterized in that: The drive unit includes a dual-axis motor (209) mounted on the top wall of the connecting plate (201). The output shafts on the left and right sides of the dual-axis motor (209) are connected to the inner ends of two lead screws (208) via couplings.

4. The exhaust device for an air separator as described in claim 1, characterized in that: A filter plate (105) is provided on the rear side of the mounting frame (101).

5. The exhaust device for an air separator as described in claim 1, characterized in that: Mounting components are provided on the left and right sides of the mounting frame (101).

6. The exhaust device for an air separator as described in claim 5, characterized in that: The mounting assembly includes two mounting plates (103) respectively disposed on the left and right sides of the mounting frame (101), and each mounting plate (103) has multiple mounting holes inside.

7. The exhaust device for an air separator as described in claim 3, characterized in that: The upper end of the connecting plate (201) is provided with a control panel (301), and the dual-axis motor (209) and the blower (104) are both electrically connected to the control panel (301).

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