Nut shell breaking device

Abstract

The utility model discloses a nut shell breaking device which mainly comprises a power motor, a left roller and a right roller, wherein the left roller and the right roller are driven by the power motor and rotate synchronously in opposite directions. The left roller and the right roller are arranged on the base in parallel through a left roller shaft and a bearing and a right roller shaft and a bearing respectively; hole cavities are formed in the symmetrical positions of the left roller and the right roller correspondingly, and extrusion heads are installed in the hole cavities. According to the device, the two rolling wheels which are provided with the hole cavities and are symmetrically arranged in parallel synchronously rotate in the opposite directions, and an extrusion cavity is formed between the left hole cavity and the right hole cavity which are matched correspondingly, so that nuts to be husked conveniently enter the extrusion cavity to be extruded and broken, and husked nuts and husks are discharged. The nut picker has the advantages of being simple in principle, ingenious in structure, convenient to use and the like, a plurality of nuts can be processed simultaneously when the roller rotates by a circle, and working efficiency is improved; according to the size of nuts, the size of the extrusion cavity can be controlled by adjusting the extrusion head to adapt to the nuts of various sizes; in addition, in order to further improve the productivity, a plurality of roller units can be stacked, and the large-scale production requirement is met.

Description

Technical Field

[0001] The utility model belongs to the technical field of nut agricultural product processing, and in particular relates to a nut shelling device. Background Art

[0002] With the development of China's economy, the output and market demand of nuts and oil tea fruits are increasing. Both fruits have a hard shell that needs to be removed when eaten or processed. At present, the process of shelling or breaking nuts can be done manually or with a simple shelling machine. However, the efficiency of manual shelling is very low and the labor cost is very high; and when using traditional simple shelling machines, the kernel breakage rate is high and the loss is also large, making it difficult to achieve the ideal effect. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a nut shelling device which has simple principle, ingenious structure, convenient use and good effect.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] A nut shelling device mainly comprises a power motor and a left roller and a right roller driven by the motor and rotating synchronously in opposite directions; the left roller and the right roller are symmetrically arranged on a base through a left roller shaft and a bearing, and a right roller shaft and a bearing respectively; holes are arranged at symmetrical positions on the left roller and the right roller respectively, and extrusion heads are installed in the holes.

[0006] The extrusion head is a cross-shaped extrusion head with a concave middle and convex periphery.

[0007] The outer wall of the extrusion head is provided with external threads, and the wall of the hole cavity is provided with matching internal threads. The extrusion head is rotatably installed in the hole cavity through the matching external threads and internal threads (the depth is accurately adjusted by screwing in or out);

[0008] Three cavities are evenly arranged on the circumferential outer side walls of the left roller and the right roller, and the centers of adjacent cavities are spaced 120 degrees apart.

[0009] A nut guide chute is arranged above the left roller and the right roller, and a nut kernel and shell separation device is arranged below.

[0010] The power motor is arranged below between the left roller and the right roller, and a right speed reduction driving gear is arranged on the rotating shaft of the power motor.

[0011] A right reduction driven gear is installed at the driving end of the right roller shaft. The right reduction driven gear is located on the right side of the right reduction driving gear and is meshed and connected with the right reduction driving gear and driven by the right reduction driving gear.

[0012] A left driving wheel shaft is arranged in parallel on the left side of the power motor, and the left driving wheel shaft is arranged on the base through a left driving wheel bearing.

[0013] The driving end of the left roller shaft is equipped with a left reduction driven gear, and the driving end of the left driving wheel shaft is equipped with a left reduction driving gear. The left reduction driving gear is located on the left side of the right reduction driving gear and is meshed and connected with it to be driven by it. The left reduction driven gear is located on the left side of the left reduction driving gear and is meshed and connected with it to be driven by it.

[0014] The left roller or the right roller is a roller group composed of at least two roller units connected in series, and all roller units in the same roller group share the same roller shaft in series; or a pair of left rollers and right rollers constitute a roller unit, and multiple roller units are arranged in parallel on the left and right, and each roller unit has its own roller shaft.

[0015] In view of the shortcomings of the current nut shelling or shelling operation, the inventor has designed a nut shelling device, which mainly includes a power motor and a left roller and a right roller driven by the motor and rotating synchronously in opposite directions; the left roller and the right roller are arranged on the base in parallel through the left roller shaft and bearing, the right roller shaft and bearing respectively; the left roller and the right roller are provided with holes at symmetrical positions, and an extrusion head is installed in the hole. The device forms an extrusion cavity between the matching left and right holes through two rollers provided with holes and symmetrically arranged in parallel, and the opening changes from large to small and then from small to large, so that the nuts to be shelled can enter the extrusion cavity for extrusion and shelling and discharge the kernels and shells after shelling. The utility model has the characteristics of simple principle, ingenious structure, and convenient use. The roller can process multiple nuts at the same time when it rotates one circle, which improves the work efficiency; according to the size of the nut, the size of the extrusion cavity can also be controlled by adjusting the extrusion head to adapt to nuts of various sizes; in addition, in order to further improve the production capacity, multiple roller units can be stacked to meet the needs of large-scale production. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is one of the schematic diagrams (front view) of the structure and use state of the nut shelling device of the utility model.

[0017] Figure 2 This is the second schematic diagram (top view) of the structure and use status of the nut shelling device of the utility model.

[0018] Figure 3 This is the third schematic diagram of the structure and use status of the nut shelling device of the utility model (right view).

[0019] Figure 4 It is a structural schematic diagram of an extrusion chamber in a nut shelling device of the utility model.

[0020] Figure 5 It is a structural schematic diagram of an extrusion head in a nut shelling device of the utility model, wherein: a is the front of the extrusion head, b is the AA section of the extrusion head, and c is the BB section of the extrusion head.

[0021] Figure 6 It is a schematic diagram of the structure and use status of another embodiment of the nut shelling device of the utility model.

[0022] In the figure: 1 left roller, 2 left roller bearing, 3 left driving wheel bearing, 4 extrusion head, 5 right roller bearing, 6 right roller, 7 base, 8 right reduction driven gear, 9 right reduction driving gear, 10 power motor, 11 left driving wheel shaft, 12 left reduction driving gear, 13 left reduction driven gear, 14 nut guide chute, 15 nut, 16 left roller shaft, 17 right roller shaft, 18 cavity. DETAILED DESCRIPTION

[0023] 1. Basic structure

[0024] like Figures 1 to 5 As shown, the nut shelling device of the utility model mainly includes a power motor 10 and a left roller 1 and a right roller 6 driven by the power motor 10 and rotating synchronously in opposite directions. The left roller and the right roller are symmetrically arranged on the base 7 through a left roller shaft 16 and a left roller bearing 2, and a right roller shaft 17 and a right roller bearing 5, respectively.

[0025] Three cavities 18 are evenly arranged on the circumferential outer wall of the left roller and the right roller, the centers of adjacent cavities are spaced 120 degrees apart, and the corresponding cavities on the left roller and the right roller are symmetrical to each other. An extrusion head 4 is installed in the cavity. The extrusion head is a cross-shaped extrusion head with a concave middle and a convex periphery. The outer wall of the extrusion head is provided with an external thread, and the cavity wall is provided with a matching internal thread. The extrusion head is rotatably installed in the cavity through the matching external thread and internal thread, and its depth can be accurately adjusted by screwing in or out.

[0026] The power motor (such as a domestic 220V / 0.75KW asynchronous AC motor) is arranged below the left roller and the right roller, and a right reduction driving gear 9 is arranged on the rotating shaft of the power motor. The driving end of the right roller shaft is equipped with a right reduction driven gear 8, which is located on the right side of the right reduction driving gear and is meshed and connected with it and driven by it. The left driving wheel shaft 11 is arranged in parallel on the left side of the power motor, and the left driving wheel shaft is arranged on the base through the left driving wheel bearing 3. The driving end of the left roller shaft is equipped with a left reduction driven gear 13, and the driving end of the left driving wheel shaft is equipped with a left reduction driving gear 12, which is located on the left side of the right reduction driving gear and is meshed and connected with it and driven by it, and the left reduction driven gear is located on the left side of the left reduction driving gear and is meshed and connected with it and driven by it.

[0027] A nut guide chute 14 is arranged above the left roller and the right roller, and a nut kernel and shell separation device can be arranged below.

[0028] 2. Working Principle

[0029] The core components of the utility model are two symmetrical rollers, each of which has three holes drilled equidistantly on the central circumference, and the diameter of the hole is slightly larger than the maximum diameter of the nut to be shelled. The cross-shaped extrusion head in the hole can be adjusted in depth by rotating the extrusion head to adapt to nuts of different sizes.

[0030] During assembly, the corresponding holes of the left and right rollers must be aligned to ensure synchronous rotation in opposite directions during operation. When the rollers rotate to a suitable angle, the symmetrical holes of the left and right rollers form an extrusion cavity with a larger opening on the top and a smaller opening on the bottom. At this time, the nut 15 falls into the extrusion cavity through the chute above the center of the roller (the chute has baffles on both sides to ensure that the nut falls accurately into the extrusion cavity) under the action of gravity and rotates synchronously with the roller. When the horizontal distance in the extrusion cavity is smaller than the diameter of the nut, the cross-shaped extrusion head in the hole begins to squeeze the nut; the roller continues to rotate, the horizontal distance of the extrusion cavity continues to decrease, and the nut is subjected to increasing pressure until the left and right extrusion cavities are at the same horizontal position and the extrusion strength reaches the maximum; the roller continues to rotate, the horizontal distance of the extrusion cavity begins to gradually increase, and the nut kernel and the crushed shell fall into the kernel and shell separation device below under the action of gravity for kernel and shell separation, thereby completing the automatic nut shelling production process.

[0031] During operation, the size of the extrusion chamber cannot be adjusted. In order to accommodate nuts of different sizes, the nuts can be graded in advance according to the requirements. Nuts of the same grade are sent to the device of the corresponding caliber level for shelling.

[0032] To ensure the integrity of the kernels, the distance between the two cross extrusion heads can be adjusted so that the hard shell can be crushed without damaging the kernels.

[0033] In order to improve work efficiency and meet the needs of industrial-scale production, multiple roller units can be stacked to achieve simultaneous processing of multiple nuts. Figure 6 As shown, the left roller / right roller is a roller group composed of four roller units connected in series, and all roller units in the same roller group share the same roller axis in series (i.e., four roller units connected in series on the left side and four roller units connected in series on the right side). Of course, they can also be stacked in parallel, such as a pair of left and right rollers forming a roller unit, and multiple roller units are arranged in parallel left and right (i.e., left roller 1-right roller 1-left roller 2-right roller 2-left roller 3-right roller 3-left roller 4-right roller 4...), and each roller unit has its own roller axis.

Claims

1. A nut shelling device, characterized in that It mainly includes a power motor and a left roller and a right roller driven by the motor and rotating synchronously in opposite directions; the left roller and the right roller are symmetrically arranged on the base through a left roller shaft and a bearing, and a right roller shaft and a bearing respectively; holes are arranged at symmetrical positions on the left roller and the right roller respectively, and extrusion heads are installed in the holes.

2. The nut shelling device according to claim 1, characterized in that: The extrusion head is a cross-shaped extrusion head with a concave middle and convex periphery.

3. The nut shelling device according to claim 2, characterized in that: The outer wall of the extrusion head is provided with external threads, and the wall of the hole cavity is provided with matching internal threads. The extrusion head is rotatably installed in the hole cavity through the matching external threads and internal threads, and the depth is accurately adjusted by screwing in or out.

4. The nut shelling device according to claim 1, characterized in that: Three cavities are evenly arranged on the circumferential outer side walls of the left roller and the right roller, and the centers of adjacent cavities are spaced 120 degrees apart.

5. The nut shelling device according to claim 1, characterized in that: A nut guide chute is arranged above the left roller and the right roller, and a nut kernel and shell separation device is arranged below.

6. The nut shelling device according to claim 1, characterized in that: The power motor is arranged below between the left roller and the right roller, and a right speed reduction driving gear is arranged on the rotating shaft of the power motor.

7. The nut shelling device according to claim 6, characterized in that: The driving end of the right roller shaft is provided with a right reduction driven gear, which is located on the right side of the right reduction driving gear and is meshed and connected with the right reduction driving gear and driven by the right reduction driven gear.

8. The nut shelling device according to claim 1, characterized in that: A left driving wheel shaft is arranged in parallel on the left side of the power motor, and the left driving wheel shaft is arranged on the base through a left driving wheel bearing.

9. The nut shelling device according to claim 8, characterized in that: The driving end of the left roller shaft is equipped with a left reduction driven gear, and the driving end of the left driving wheel shaft is equipped with a left reduction driving gear. The left reduction driving gear is located on the left side of the right reduction driving gear and is meshed and connected with it to be driven by it. The left reduction driven gear is located on the left side of the left reduction driving gear and is meshed and connected with it to be driven by it.

10. The nut shelling device according to claim 1, characterized in that: The left roller or the right roller is a roller group composed of at least two roller units connected in series, and all roller units in the same roller group are connected in series and share the same roller shaft; or a pair of left rollers and right rollers constitute a roller unit, and multiple roller units are arranged in parallel on the left and right, and each roller unit has its own roller shaft.

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