Roller type walnut shell cracking device

Abstract

The utility model discloses a roller type walnut shell breaking device which comprises a shell breaking box, a grading box, a first fruit screening frame, a second fruit screening frame and a third fruit screening frame, the grading box is fixedly installed on one side of the shell breaking box, and three sets of shell breaking shafts are symmetrically installed in the shell breaking box. A first rolling roller, a second rolling roller and a third rolling roller are fixedly installed on the three sets of hull breaking shafts correspondingly, three feeding ports are formed between an inner cavity of the hull breaking box and an inner cavity of the grading box, and vibration springs are installed between the bottom faces of the first fruit screening frame, the second fruit screening frame and the third fruit screening frame and the bottom faces of the feeding ports; three fixing bases are fixedly installed on the inner wall of the grading box, and rotating shafts are installed on the fixing bases. The walnut shell breaking machine has the advantages that the walnut shell breaking machine is provided with the grading box, the shell breaking box, the first fruit screening frame, the second fruit screening frame and the third fruit screening frame, unified shell breaking and shell breaking treatment can be conducted on all graded and classified walnuts at a time, operation is easy and convenient, the walnut processing efficiency is further improved, and practicability is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of walnut processing, in particular to a roller-type walnut shell cracking device. Background Art

[0002] Walnut is a kind of nut food, which is the seed kernel fruit of the walnut plant. Walnut kernel is rich in protein, fat and carbohydrates, and contains a variety of trace elements and minerals such as calcium, phosphorus, iron and other trace elements and minerals necessary for the human body, as well as a variety of vitamins such as carotene and riboflavin. It has the functions of benefiting the heart, enhancing brain function and improving the digestive system function. During the processing of walnuts, it is necessary to crack the shell and take out the kernel. For this purpose, a roller-type walnut shell cracking device is needed.

[0003] The prior art discloses a roller-type walnut shelling and kernel extraction device with publication number CN219352975U, comprising a collection box, a second support frame fixedly connected to the bottom of the collection box, a plurality of collection trays fixedly connected to the inner wall of the collection box at equal intervals, a second motor fixedly connected to the bottom of the inner wall of the collection box, a first rotating rod fixedly connected to the output end of the second motor, the top of the first rotating rod sequentially passing through the plurality of collection trays, a plurality of rotating plates fixedly connected to the outer wall of the first rotating rod at equal intervals, and a hole provided at the bottom of each of the plurality of collection trays. In this utility model, the baffle is driven downward by the engagement of a gear with a rack, and when the push rod slides downward, the rocker swings, and the rocker drives the slide bar to slide leftward, thereby driving the circular roller to move leftward. When the right circular roller moves leftward, the distance between the two circular rollers becomes smaller, so that the circular rollers on both sides fit the walnuts more closely, greatly improving the efficiency of walnut shelling and the quality of walnut kernels.

[0004] When the above-mentioned utility model is in use, it is necessary to first use multiple collecting plates to grade and classify walnuts of different sizes, and then the graded and classified walnuts are successively introduced into the rolling rollers for shell cracking and breaking. When introducing walnuts of different sizes, the spacing between the rollers needs to be adjusted accordingly to prevent the walnuts from being over-crushed or unable to be crushed. Whether it is to grind walnuts in batches one by one or to adjust the spacing between the rollers, the operation is relatively cumbersome, which affects the further improvement of work efficiency and has general practicality. Utility Model Content

[0005] (1) Technical problems solved

[0006] In response to the shortcomings of the existing technology, the utility model provides a roller-type walnut shell cracking device, which can uniformly crack and break the shells of all graded and classified walnuts at one time. It is simple and convenient to operate, further improves the walnut processing efficiency, and has the advantages of greater practicality, thereby solving the problems in the above-mentioned background technology.

[0007] (2) Technical solution

[0008] In order to achieve the above-mentioned advantage of being able to uniformly crack and shell all graded and classified walnuts at one time, the operation is simple and convenient, the walnut processing efficiency is further improved, and the practicality is stronger, the specific technical scheme adopted by the utility model is as follows: a roller-type walnut shell cracking device, comprising a shell cracking box, a grading box, a first fruit screening rack, a second fruit screening rack and a third fruit screening rack, a grading box is fixedly installed on one side of the shell cracking box, three groups of shell cracking shafts are symmetrically installed in the shell cracking box, and the first rolling roller, the second rolling roller and the third rolling roller are fixedly installed on the three groups of shell cracking shafts, three feed ports are opened between the inner cavity of the shell cracking box and the inner cavity of the grading box, the first fruit screening rack, the second fruit screening rack and the third fruit screening rack are fixedly installed, and the first fruit screening rack, the second fruit screening rack and the third fruit screening rack are fixedly installed. A vibration spring is installed between the bottom surfaces of the fruit screening rack and the third fruit screening rack and the bottom surface of the feed port. Three fixing seats are fixedly installed on the inner wall of the grading box, and a rotating shaft is installed on the fixing seat. Several connecting blocks are welded at one end of the first fruit screening rack, the second fruit screening rack and the third fruit screening rack, and the connecting block is installed on the rotating shaft. A fixed plate is symmetrically welded on the outer wall of one side of the shell breaking box. A worm is installed between the two fixed plates, and the top of the worm is connected to the output end of the servo motor. A worm wheel is fixedly installed at one end of the shell breaking shaft on one side, and the worm wheel and the worm cooperate with each other. Transmission gears are symmetrically fixedly installed at one end of the horizontally adjacent shell breaking shafts, and the horizontally adjacent transmission gears are engaged with each other.

[0009] Furthermore, the first fruit screening rack, the second fruit screening rack and the third fruit screening rack are symmetrically welded with extension plates on one side of the inner cavity of the shell breaking box, and a knocking hemisphere is fixedly installed on the bottom surface of the extension plate, and a knocking rod is symmetrically fixedly installed on the shell breaking shaft on one side, and the knocking rod is located below the knocking hemisphere.

[0010] Furthermore, a plurality of first holes are evenly opened on the bottom surface of the first fruit screening rack, a plurality of second holes are evenly opened on the bottom surface of the second fruit screening rack, and a plurality of third holes are evenly opened on the bottom surface of the third fruit screening rack. The diameter of the first hole is larger than the diameter of the second hole, and the diameter of the second hole is larger than the diameter of the third hole.

[0011] Furthermore, the distance between the two first laminating rollers is greater than the distance between the two second laminating rollers, and the distance between the two second laminating rollers is greater than the distance between the two third laminating rollers.

[0012] Furthermore, three partitions are fixedly installed in the inner cavity of the shell breaking box, and a material guide inclined plate is fixedly installed on the top surface of the partition, and a discharge pipe installed on the side wall of the shell breaking box is provided on the lower end of the material guide inclined plate.

[0013] Furthermore, a defective fruit outlet pipe is installed on one side of the bottom of the inner cavity of the grading box.

[0014] Furthermore, a control panel is installed on the side wall of the grading box, and the control panel is electrically connected to the servo motor.

[0015] Furthermore, a support frame is welded to the bottom surface of the grading box and the shell breaking box.

[0016] (3) Beneficial effects

[0017] Compared with the prior art, the present invention provides a roller-type walnut shell cracking device, which has the following beneficial effects:

[0018] (1) The utility model is provided with a grading box and a shell breaking box, a grading box is fixedly installed on one side of the shell breaking box, three groups of shell breaking shafts are symmetrically installed in the shell breaking box, and the three groups of shell breaking shafts are fixedly installed with the first rolling roller, the second rolling roller and the third rolling roller in sequence, and the grading box is provided with a first fruit screening frame, a second fruit screening frame and a third fruit screening frame, the connecting blocks fixedly installed on one side of the first fruit screening frame, the second fruit screening frame and the third fruit screening frame are all installed on the rotating shaft installed on the fixed seat, and the other sides of the first fruit screening frame, the second fruit screening frame and the third fruit screening frame are plugged into the corresponding feed port, and the bottoms of the first fruit screening frame, the second fruit screening frame and the third fruit screening frame are fixedly ... A vibration spring is connected and installed between the surface and the bottom surface of the feed port, a first hole is provided on the first sieve frame, a second hole is provided on the second sieve frame, and a third hole is provided on the third sieve frame. When the walnut material is poured into the first sieve frame, the walnuts with a diameter larger than the first hole stay on the first sieve frame and slide along the first sieve frame to between the two first rolling rollers, the walnuts with a diameter smaller than the first hole but larger than the second hole stay on the second sieve frame and slide along the second sieve frame to between the two second rolling rollers, the walnuts with a diameter smaller than the second hole but larger than the third hole stay on the third sieve frame and slide along the third sieve frame The fruit rack slides between the two third crushing rollers, and the walnuts with a diameter smaller than the third hole are inferior fruits and can be discharged from the inferior fruit outlet pipe. A fixed plate is symmetrically welded on one side of the shelling box, and a worm is installed between the two fixed installations, and a servo motor is connected to the top of the worm. A worm wheel is fixedly installed at one end of the shelling shaft set on one side, and the worm wheel cooperates with the worm, so when the servo motor drives the worm to rotate, it can drive the shelling shaft on one side to rotate in the same direction. Because the adjacent shelling shafts are symmetrically fixed with transmission gears at one end, and the adjacent transmission gears are engaged with each other, the horizontally adjacent shelling shafts can rotate relatively. Due to the gap between the two first crushing rollers, the shelling shafts can rotate relatively. The distance is greater than the distance between the two second rolling rollers, and the distance between the two second rolling rollers is greater than the distance between the two third rolling rollers, so that the graded and classified walnuts can be cracked and broken into shells by utilizing the rotating first rolling roller, the second rolling roller and the third rolling roller. The inner cavity of the shell cracking box is fixedly provided with three partitions, and the top surface of the partition is fixedly provided with a material guide inclined plate, which can make the shelled walnuts slide along the material guide inclined plate to the discharge pipe for discharge, so that a roller-type walnut shell cracking device can perform uniform shell cracking and breaking on all graded and classified walnuts at one time, which is simple and convenient to operate, further improves the walnut processing efficiency, and is more practical.

[0019] (2) The utility model is provided with a first fruit screening frame, a second fruit screening frame and a third fruit screening frame. The first fruit screening frame, the second fruit screening frame and the third fruit screening frame are located on one side of the inner cavity of the shell breaking box, and the two ends of the first fruit screening frame, the second fruit screening frame and the third fruit screening frame are symmetrically welded with extension plates, and the bottom surface of the extension plate is fixedly installed with a knocking hemisphere, and the two ends of the shell breaking shaft near the feed port are symmetrically welded with knocking rods. When the shell breaking shaft rotates, the knocking rods can be driven to continuously knock the knocking hemispheres. At the same time, the vibration spring and the rotating shaft can be used to drive the first fruit screening frame, the second fruit screening frame and the third fruit screening frame to be in a vibrating state, so that the first fruit screening frame, the second fruit screening frame and the third fruit screening frame can be used to carry out multi-stage screening and classification of walnuts without installing or cooperating with additional electric equipment, which is beneficial to reducing the manufacturing cost of the device and the power consumption during use, and can prevent walnuts from being stuck in the first hole, the second hole and the third hole, and is more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 This is a structural schematic diagram of a roller-type walnut shell cracking device according to an embodiment of the utility model;

[0022] Figure 2 This is a front view of a roller-type walnut shell cracking device according to an embodiment of the utility model;

[0023] Figure 3 This is a rear view of a roller-type walnut shell cracking device according to an embodiment of the utility model;

[0024] Figure 4 This is a side sectional view of a shell cracking box portion of a roller-type walnut shell cracking device according to an embodiment of the utility model;

[0025] Figure 5 According to the embodiment of the present utility model Figure 1 A magnified view of point A;

[0026] Figure 6 It is a stereoscopic diagram of the shell-breaking shaft of a roller-type walnut shell-cracking device according to an embodiment of the utility model.

[0027] In the picture:

[0028] 1. Outlet pipe for inferior fruits; 2. Support frame; 3. Grading box; 4. Shell breaking box; 5. Shell breaking shaft; 6. Outlet pipe; 7. First fruit screening rack; 8. Fixed seat; 9. Second fruit screening rack; 10. Connecting block; 11. Third fruit screening rack; 12. Rotating shaft; 13. First hole; 14. Second hole; 15. Third hole; 16. Servo motor; 17. First crushing roller; 18. Guide ramp; 19. Second crushing roller; 20. Partition; 21. Third crushing roller; 22. Fixed plate; 23. Worm; 24. Worm gear; 25. Control panel; 26. Transmission gear; 27. Feed port; 28. Vibration spring; 29. Extension plate; 30. Knocking hemisphere; 31. Knocking rod. DETAILED DESCRIPTION

[0029] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. By referring to these contents, ordinary technicians in this field should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0030] According to an embodiment of the present utility model, a roller-type walnut shell cracking device is provided.

[0031] The present invention will now be further described with reference to the accompanying drawings and specific embodiments. Figure 1-6As shown, according to a roller-type walnut shell cracking device of an embodiment of the present invention, it includes a shell breaking box 4, a grading box 3, a first fruit screening frame 7, a second fruit screening frame 9 and a third fruit screening frame 11. The grading box 3 is fixedly installed on one side of the shell breaking box 4, and three groups of shell breaking shafts 5 are symmetrically installed in the shell breaking box 4. The three groups of shell breaking shafts 5 are respectively fixedly installed with a first rolling roller 17, a second rolling roller 19 and a third rolling roller 21. Three feeding ports 27 are opened between the inner cavity of the shell breaking box 4 and the inner cavity of the grading box 3. A vibration spring 28 is installed between the bottom surface of the first fruit screening frame 7, the second fruit screening frame 9 and the third fruit screening frame 11 and the bottom surface of the feeding port 27. Three fixing seats 8 are fixedly installed on the inner wall of the grading box 3, and a rotating shaft 12 is installed on the fixing seat 8. The first fruit screening frame 7, Several connecting blocks 10 are welded to one end of the second fruit screening frame 9 and the third fruit screening frame 11, and the connecting block 10 is installed on the rotating shaft 12. A fixed plate 22 is symmetrically welded to the outer wall of one side of the shell breaking box 4. A worm 23 is installed between the two fixed plates 22, and the top of the worm 23 is connected to the output end of the servo motor 16. A worm gear 24 is fixedly installed at one end of the shell breaking shaft 5 on one side, and the worm gear 24 and the worm 23 cooperate with each other. Transmission gears 26 are symmetrically fixedly installed at one end of the horizontally adjacent shell breaking shaft 5, and the horizontally adjacent transmission gears 26 are engaged with each other, which enables a roller-type walnut shell cracking device to perform unified shell cracking and shell breaking processing on all graded and classified walnuts at one time. The operation is simple and convenient, which further improves the walnut processing efficiency and is more practical.

[0032] In one embodiment, the first fruit screening rack 7, the second fruit screening rack 9 and the third fruit screening rack 11 are symmetrically welded with an extension plate 29 on one side of the inner cavity of the shell breaking box 4, and a knocking hemisphere 30 is fixedly installed on the bottom surface of the extension plate 29. A knocking rod 31 is symmetrically fixedly installed on one side of the shell breaking shaft 5, and the knocking rod 31 is located below the knocking hemisphere 30, which can realize the multi-stage screening and classification of walnuts by driving the first fruit screening rack 7, the second fruit screening rack 9 and the third fruit screening rack 11 without installing additional electric equipment, which is beneficial to reducing the manufacturing cost of the device and the power consumption during use, and can prevent walnuts from being stuck in the first hole 13, the second hole 14 and the third hole 15, and is more practical.

[0033] In one embodiment, a plurality of first holes 13 are evenly opened on the bottom surface of the first sieve frame 7, a plurality of second holes 14 are evenly opened on the bottom surface of the second sieve frame 9, and a plurality of third holes 15 are evenly opened on the bottom surface of the third sieve frame 11. The diameter of the first hole 13 is larger than the diameter of the second hole 14, and the diameter of the second hole 14 is larger than the diameter of the third hole 15, thereby achieving multi-stage screening of walnuts of different sizes.

[0034] In one embodiment, the spacing between the two first rolling rollers 17 is greater than the spacing between the two second rolling rollers 19, and the spacing between the two second rolling rollers 19 is greater than the spacing between the two third rolling rollers 21, which allows walnuts of three sizes to be cracked and broken simultaneously.

[0035] In one embodiment, three partitions 20 are fixedly installed in the inner cavity of the shell breaking box 4, and a material guide inclined plate 18 is fixedly installed on the top surface of the partition 20, and a discharge pipe 6 installed on the side wall of the shell breaking box 4 is provided on the lower end side, which serves to discharge the walnuts after cracking and shelling through the discharge pipe 6.

[0036] In one embodiment, a poor quality fruit outlet pipe 1 is installed on one side of the bottom of the inner cavity of the grading box 3 to discharge the unqualified poor quality fruits that have been screened out.

[0037] In one embodiment, a control panel 25 is installed on the side wall of the grading box 3, and the control panel 25 is electrically connected to the servo motor 16, playing a role in controlling the normal operation of the device.

[0038] In one embodiment, a support frame 2 is welded to the bottom surface of the grading box 3 and the shell breaking box 4 to provide a fixed support.

[0039] Working principle: The utility model is provided with a grading box 3 and a shell breaking box 4, and the grading box 3 is fixedly installed on one side of the shell breaking box 4. Three groups of shell breaking shafts 5 are symmetrically installed in the shell breaking box 4, and the three groups of shell breaking shafts 5 are fixedly installed with the first rolling roller 17, the second rolling roller 19 and the third rolling roller 21 in sequence. The grading box 3 is provided with a first fruit screening frame 7, a second fruit screening frame 9 and a third fruit screening frame 11. The connecting blocks 10 fixedly installed on one side of the first fruit screening frame 7, the second fruit screening frame 9 and the third fruit screening frame 11 are all installed on the rotating shaft 12 installed on the fixed seat 8, and the other sides of the first fruit screening frame 7, the second fruit screening frame 9 and the third fruit screening frame 11 are plugged into the corresponding feed port 27, and the bottom surfaces of the first fruit screening frame 7, the second fruit screening frame 9 and the third fruit screening frame 11 are aligned with the feed port 27. A vibration spring 28 is connected and installed between the bottom surfaces of the material opening 27. A first hole 13 is provided on the first sieve frame 7, a second hole 14 is provided on the second sieve frame 9, and a third hole 15 is provided on the third sieve frame 11. When the walnut material is poured into the first sieve frame 7, the walnuts with a diameter larger than the first hole 13 stay on the first sieve frame 7 and slide along the first sieve frame 7 to between the two first rolling rollers 17. The walnuts with a diameter smaller than the first hole 13 but larger than the second hole 14 stay on the second sieve frame 9 and slide along the second sieve frame 9 to between the two second rolling rollers 19. The walnuts with a diameter smaller than the second hole 14 but larger than the third hole 15 stay on the third sieve frame 11 and slide along the third sieve frame 11 to the two Between the third crushing rollers 21, the walnuts with a diameter smaller than the third hole 15 are inferior fruits and can be guided out from the inferior fruit outlet pipe 1. A fixed plate 22 is symmetrically welded on one side of the shelling box 4, and a worm 23 is installed between the two fixed installations, and the top of the worm 23 is connected to a servo motor 16, and one end of the shelling shaft 5 set on one side is fixedly installed with a worm gear 24, and the worm gear 24 cooperates with the worm 23, so when the servo motor 16 drives the worm 23 to rotate, it can drive the shelling shaft 5 on one side to rotate in the same direction. Because the adjacent shelling shafts 5 are symmetrically fixed with transmission gears 26 at one end, and the adjacent transmission gears 26 are meshed with each other, the horizontally adjacent shelling shafts 5 can rotate relative to each other. Since the spacing between the two first crushing rollers 17 is greater than that between the two second crushing rollers 19 The spacing between the two second rolling rollers 19 is greater than the spacing between the two third rolling rollers 21, so that the graded and classified walnuts can be cracked and shelled by rotating the first rolling roller 17, the second rolling roller 19 and the third rolling roller 21. The inner cavity of the shell breaking box 4 is fixedly installed with three partitions 20, and the top surface of the partition 20 is fixedly installed with a guide inclined plate 18, which can make the shelled walnuts slide along the guide inclined plate 18 to the discharge pipe 6 for discharge, so that a roller-type walnut shell cracking device can uniformly crack and shell all graded and classified walnuts at one time, which is simple and convenient to operate, further improves the walnut processing efficiency, and is more practical. In addition, the utility model is provided with a first fruit screening rack 7, a second fruit screening rack 9 and a third fruit screening rack 11.The first, second and third sieve racks 7, 9 and 11 are symmetrically welded with extension plates 29 at both ends on one side of the inner cavity of the shell breaking box 4, and a knocking hemisphere 30 is fixedly installed on the bottom surface of the extension plate 29. The shell breaking shaft 5 near the feeding port 27 has knocking rods 31 symmetrically welded at both ends. When the shell breaking shaft 5 rotates, the knocking rods 31 can be driven to continuously knock the knocking hemisphere 30. At the same time, the vibration spring 28 and the rotating shaft 12 can drive the first, second and third sieve racks 7, 9 and 11 to vibrate. In this way, the first, second and third sieve racks 7, 9 and 11 can be driven to perform multi-stage screening and classification of walnuts without installing or cooperating with additional electric equipment, which is beneficial to reducing the manufacturing cost of the device and the power consumption during use, and can prevent walnuts from being stuck in the first hole 13, the second hole 14 and the third hole 15, making it more practical.

[0040] In the present invention, unless otherwise clearly stipulated and limited, the terms "install", "set", "connect", "fix", "screw" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A roller-type walnut shell cracking device, comprising a shell breaking box (4), a grading box (3), a first fruit screening frame (7), a second fruit screening frame (9) and a third fruit screening frame (11), characterized in that: A grading box (3) is fixedly installed on one side of the shell-breaking box (4), and three groups of shell-breaking shafts (5) are symmetrically installed in the shell-breaking box (4). The three groups of shell-breaking shafts (5) are respectively fixedly installed with a first rolling roller (17), a second rolling roller (19) and a third rolling roller (21). Three feed ports (27) are opened between the inner cavity of the shell-breaking box (4) and the inner cavity of the grading box (3). A vibration spring (28) is installed between the bottom surface of the first fruit screening rack (7), the second fruit screening rack (9) and the third fruit screening rack (11) and the bottom surface of the feed port (27). Three fixed seats (8) are fixedly installed on the inner wall of the grading box (3), and a rotating shaft (12) is installed on the fixed seat (8). A plurality of connecting blocks (10) are welded to one end of the first fruit screening frame (7), the second fruit screening frame (9) and the third fruit screening frame (11), and the connecting blocks (10) are mounted on the rotating shaft (12). A fixing plate (22) is symmetrically welded to the outer wall of one side of the shell breaking box (4). A worm (23) is mounted between the two fixing plates (22), and the top of the worm (23) is connected to the output end of the servo motor (16). A worm wheel (24) is fixedly mounted on one end of each shell breaking shaft (5), and the worm wheel (24) and the worm wheel (23) cooperate with each other. Transmission gears (26) are symmetrically fixedly mounted on one end of the horizontally adjacent shell breaking shafts (5), and the horizontally adjacent transmission gears (26) are meshed with each other.

2. A roller-type walnut shell cracking device according to claim 1, characterized in that: The first fruit screening frame (7), the second fruit screening frame (9) and the third fruit screening frame (11) are symmetrically welded with an extension plate (29) on one side of the inner cavity of the shell breaking box (4), and a knocking hemisphere (30) is fixedly installed on the bottom surface of the extension plate (29). A knocking rod (31) is symmetrically fixedly installed on the shell breaking shaft (5) on one side, and the knocking rod (31) is located below the knocking hemisphere (30).

3. A roller-type walnut shell cracking device according to claim 1, characterized in that: The bottom surface of the first fruit screening frame (7) is uniformly provided with a plurality of first holes (13), the bottom surface of the second fruit screening frame (9) is uniformly provided with a plurality of second holes (14), and the bottom surface of the third fruit screening frame (11) is uniformly provided with a plurality of third holes (15), wherein the diameter of the first holes (13) is larger than the diameter of the second holes (14), and the diameter of the second holes (14) is larger than the diameter of the third holes (15).

4. The roller-type walnut shell cracking device according to claim 1, characterized in that: The distance between the two first laminating rollers (17) is greater than the distance between the two second laminating rollers (19), and the distance between the two second laminating rollers (19) is greater than the distance between the two third laminating rollers (21).

5. The roller-type walnut shell cracking device according to claim 1, characterized in that: Three partitions (20) are fixedly installed in the inner cavity of the shell crushing box (4), and a material guide inclined plate (18) is fixedly installed on the top surface of the partition (20), and a discharge pipe (6) installed on the side wall of the shell crushing box (4) is provided on one side of the lower end of the material guide inclined plate (18).

6. The roller-type walnut shell cracking device according to claim 1, characterized in that: One side of the bottom of the inner cavity of the grading box (3) is connected to and installed with a poor quality fruit outlet pipe (1).

7. The roller-type walnut shell cracking device according to claim 1, characterized in that: A control panel (25) is installed on the side wall of the grading box (3), and the control panel (25) is electrically connected to the servo motor (16).

8. The roller-type walnut shell cracking device according to claim 1, characterized in that: A support frame (2) is welded to the bottom surfaces of the grading box (3) and the shell breaking box (4).

Images