Agricultural threshing device for plant shells

Abstract

The utility model discloses an agricultural threshing device for plant shells, which belongs to the field of agriculture and comprises a huller composed of an extrusion component and a screening component, and the extrusion component comprises an upper shell cover, a lower shell, an extrusion roller connected with the lower shell through a bearing and a hulling blocking net located below the extrusion roller, and the upper shell cover and the lower shell are detachable. Compared with the prior art, the extrusion roller has the advantages that the shaft rods on the two sides of the extrusion roller are designed to be the detachable pin rods, when the extrusion roller needs to be detached, the extrusion roller body can be taken and placed only by pulling out the detachable pin rods, and due to the fact that the detachable pin rods are fixed between the upper shell cover 111 and the lower shell body, the extrusion roller body can be detached conveniently. Therefore, after the extrusion roller is installed, the position of the extrusion roller can be conveniently fixed.

Description

Technical Field

[0001] This utility model relates to the agricultural field, specifically to a threshing device for plant husks in agriculture. Background Technology

[0002] Many existing crops require hulling, such as wheat, sorghum, corn, and peanuts. To hull these crops more quickly, appropriate threshing devices are usually used to remove the skin from the plants. However, the equipment used varies depending on the crop. Peanuts, as a commonly used oil-producing plant, are frequently used in various food processing and side dishes due to their large oil yield and high utilization rate. Peanuts have thicker shells and are larger in volume than wheat, so the threshing device with relatively larger gaps is required.

[0003] The existing peanut shelling machine consists of an extrusion assembly and a screening assembly. The extrusion assembly is composed of an upper shell cover and a lower shell, with extrusion rollers and a shelling screen installed inside the two shells. The rotation of the extrusion rollers causes the peanuts to rub against the shelling screen and the extrusion rollers, thus separating the peanut kernels from the shells. The separated peanut kernels and shell fragments fall into the screen below. A concave movable rod on one side of the screen causes the screen to move back and forth in the upper limit slider groove of the support seat, thus separating the lighter shells from the peanut kernels. Both the concave movable rod and the extrusion rollers are driven by motors.

[0004] While existing peanut shelling machines can quickly shell peanuts, different peanut varieties require different models for shelling. However, most of the current extrusion rollers and shelling screens are difficult to disassemble and replace. This means that when replacing the extrusion rollers and shelling screens, the upper and lower shells need to be completely disassembled, making it difficult for the shelling machine to quickly adjust the extrusion rollers and shelling screens according to the general size of the peanuts. Utility Model Content

[0005] The technical problem this invention aims to solve is that existing agricultural threshing devices for plant husks are difficult to quickly replace with different models of extrusion rollers and peeling nets.

[0006] To solve the above-mentioned technical problems, the technical solution provided by this utility model is: an agricultural plant hulling threshing device, comprising a hulling machine composed of an extrusion assembly and a screening assembly, wherein the extrusion assembly comprises a detachable upper shell cover and a lower shell, an extrusion roller connected to the lower shell via a bearing, and a hulling screen located below the extrusion roller;

[0007] The screening assembly includes a screen located below the lower housing, a concave movable rod located on one side of the screen, and a motor for driving the concave movable rod. The concave movable rod is connected to the side wall of the screen through several auxiliary connecting rods. Support seats are welded on both sides of the lower housing, and limiting sliders passing through the support seats are provided on both sides of the screen.

[0008] Both the extrusion roller and the peeling screen are detachable structures. The extrusion roller is connected to the top surface of the lower shell through a detachable pin, and the detachable pin is connected to the extrusion roller through a connecting key. The detachable pin is located between the upper shell cover and the lower shell. The peeling screen has positioning baffles on both sides that pass through the front and rear sides of the top surface of the lower shell, and the left and right sides of the lower shell have fixing plates that support the positioning baffles.

[0009] As an improvement, the positioning baffle and the fixing plate, as well as the upper shell cover and the lower shell, are all connected by bolts.

[0010] As an improvement, both the concave movable rod and the detachable pin are connected to the output shaft of the motor via pulleys.

[0011] As an improvement, the top surface of the upper shell cover is provided with a material storage trough for easy feeding.

[0012] As an improvement, the bottom surface of the lower housing is provided with a conical discharge port located above the screen.

[0013] As an improvement, a discharge port is provided on the opposite side of the concave movable rod on one side of the screen.

[0014] The advantages of this utility model compared with the prior art are as follows:

[0015] 1. The shafts on both sides of the extrusion roller are designed as detachable pins. This allows the extrusion roller body to be removed and placed simply by pulling out the detachable pins when it needs to be disassembled. Furthermore, since the detachable pins are fixed between the upper cover 111 and the lower cover, the extrusion roller can be easily fixed in position after installation.

[0016] 2. When it is necessary to replace the peeling screen, since the peeling screen has positioning baffles on both sides and a fixing plate inside the lower housing to support the positioning baffles, it can be quickly calibrated and fixed directly below the extrusion roller, regardless of the type of peeling screen selected. Attached Figure Description

[0017] Figure 1 This is a general structural diagram of an agricultural plant husk threshing device according to the present invention.

[0018] Figure 2 This is a front sectional view of the overall structure of an agricultural plant husk threshing device according to this utility model.

[0019] Figure 3This is a left sectional view of the overall structure of an agricultural plant husk threshing device according to this utility model.

[0020] Figure 4 This is an exploded view of the overall structure of a threshing device for agricultural plant husks according to this utility model.

[0021] As shown in the figure: 1. Shelling machine; 11. Extrusion assembly; 111. Upper shell cover; 1111. Storage tank; 112. Lower shell; 1121. Conical discharge port; 113. Extrusion roller; 114. Shelling screen; 1141. Positioning baffle; 1142. Fixing plate; 115. Detachable pin; 12. Screening assembly; 121. Screen; 1211. Discharge port; 122. Concave movable rod; 123. Motor; 124. Auxiliary connecting rod; 125. Support base; 126. Limiting slider; 2. Pulley. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings.

[0023] As per the instruction manual Figure 1 , 2 As shown in Figures 3 and 4, the commonly used peanut shelling machine 1 includes an extrusion assembly 11 and a screening assembly 12. The extrusion assembly 11 includes a detachable upper shell cover 111 and a lower shell 112, an extrusion roller 113 connected to the lower shell 112 via bearings, and a shelling screen 114 located below the extrusion roller 113. To facilitate the disassembly and assembly of the extrusion roller 113 and the shelling screen 114, both the extrusion roller 113 and the shelling screen 114 are designed as detachable structures, rather than traditional welded structures. For stability, the shell mesh 114 is generally welded to the side wall of the lower shell 112. The extrusion roller 113 is connected to the top surface of the lower shell 112 via a detachable pin 115. The detachable pin 115 is connected to the extrusion roller 113 via a connecting key. To facilitate the disassembly of the detachable pin 115, the detachable pin 115 is located between the upper shell cover 111 and the lower shell 112, and a bearing is fitted above the detachable pin 115 to facilitate its rotation.

[0024] Similarly, the peeling net 114 is provided with positioning baffles 1141 on both sides, passing through the front and rear sides of the top of the lower housing 112. The positions of the peeling net 114 and the extrusion roller 113 are calibrated by the sliding grooves of the positioning baffles 1141 on the front and rear sides of the lower housing 112. The left and right sides of the lower housing 112 are provided with fixing plates 1142 to support the positioning baffles 1141, which are used to reinforce the connection between the peeling net 114 and the lower housing 112 and prevent the peeling net 114 from falling due to overweight. The positioning baffles 1141 and fixing plates 1142, as well as the upper housing cover 111 and the lower housing 112, are all connected by bolts. The peeling net 114 is a semi-circular arc structure formed by welding multiple cylindrical rods with the same spacing according to the arc surface of the extrusion roller 113.

[0025] To sift out kernels and peels, the screening assembly 12 includes a screen 121 located below the lower housing 112, a concave movable rod 122 located on one side of the screen 121, and a motor 123 driving the concave movable rod 122. The concave movable rod 122 is composed of multiple concave movable rod sub-rods spliced ​​together, making it act like irregular cams to drive the screen 121 to reciprocate. The concave movable rod 122 is connected to the side wall of the screen 121 through several auxiliary connecting rods 124. The bottom surface of the concave movable rod 122 and the ear plate on one side of the screen 121 are connected by a pin structure. In order to restrict the movement direction of the screen 121, the lower housing 112 is fixed above the screen 121. The lower housing 112 is welded with support seats 125 on both sides, and the screen 121 is provided with limiting sliders 126 passing through the support seats 125 on both sides, so that the limiting sliders 126 on both sides of the screen 121 can move back and forth in the sliding groove of the limiting slider 126 on the inner side of the bottom surface of the support seat 125.

[0026] To facilitate the quick separation of peanut shells from peanut kernels after separation, a blower or similar device can be installed on one side of the screen 121. Utilizing the light weight of the peanut shells, the shells are blown away from the screen 121. Then, based on the sieving motion of the screen 121, the peanut kernels are moved to the outlet 1211 of the screen 121. The plane on which the screen 121 is placed is a gentle slope to facilitate the unidirectional displacement of the peanut kernels.

[0027] To save on the driving power source, the concave movable rod 122 and the detachable pin rod 115 are both connected to the output shaft of the motor 123 via pulley 2, and the size of the pulley 2 is selected according to the requirements.

[0028] To ensure that the shelled peanut kernels fall onto the sieve 121, the bottom surface of the lower shell 112 is provided with a conical discharge port 1121 located above the sieve 121. Similarly, the top surface of the upper shell cover 111 is provided with a storage trough 1111 for convenient feeding.

[0029] In a specific implementation of this invention, peanuts are placed into the storage trough 1111, and then the motor 123 is started, causing the extrusion roller 113 to squeeze the peanuts. After being squeezed, the separated peanut kernels and shells flow out from the gaps in the shelling screen 114, and then fall into the screen 121 from the conical discharge port 1121. After continuous sieving by the screen 121, the peanut kernels and peanut shells are separated. Then, under the action of gravity, the peanut kernels flow continuously to the discharge port 1211. During the separation, a blower can be used to blow the peanut shells away, so that the peanut shells are completely separated from the peanut kernels, ensuring the purity of the peanut kernels.

[0030] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. An agricultural plant hulling threshing device, comprising a hulling machine (1) consisting of a pressing assembly (11) and a screening assembly (12), wherein the pressing assembly (11) includes a detachable upper shell cover (111) and a lower shell (112), a pressing roller (113) connected to the lower shell (112) via a bearing, and a hulling screen (114) located below the pressing roller (113); The screening assembly (12) includes a screen (121) located below the lower housing (112), a concave movable rod (122) located on one side of the screen (121), and a motor (123) for driving the concave movable rod (122). The concave movable rod (122) is connected to the side wall of the screen (121) through several auxiliary connecting rods (124). Support seats (125) are welded on both sides of the lower housing (112), and limiting sliders (126) passing through the support seats (125) are provided on both sides of the screen (121). The characteristic feature is that: The extrusion roller (113) and the shell-peeling net (114) are both detachable structures. The extrusion roller (113) is connected to the top surface of the lower housing (112) through a detachable pin (115), and the detachable pin (115) is connected to the extrusion roller (113) through a connecting key. The detachable pin (115) is located between the upper housing cover (111) and the lower housing (112). The shell-peeling net (114) has positioning baffles (1141) on both sides that pass through the front and rear sides of the top surface of the lower housing (112), and the left and right sides of the lower housing (112) have fixing plates (1142) that support the positioning baffles (1141).

2. The threshing device for agricultural plant husks according to claim 1, characterized in that: The positioning baffle (1141) and the fixing plate (1142), as well as the upper shell cover (111) and the lower shell (112), are all connected by bolts.

3. The threshing device for agricultural plant husks according to claim 1, characterized in that: The concave movable rod (122) and the detachable pin (115) are both connected to the output shaft of the motor (123) via a pulley (2).

4. The threshing device for agricultural plant husks according to claim 1, characterized in that: The top surface of the upper cover (111) is provided with a material storage trough (1111) for easy feeding.

5. The threshing device for agricultural plant husks according to claim 1, characterized in that: The bottom surface of the lower housing (112) is provided with a conical discharge port (1121) located above the screen (121).

6. The agricultural plant husk threshing device according to claim 1, characterized in that: The screen (121) has a discharge port (1211) on the opposite side of the concave movable rod (122) on one side.

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