Nut shelling device
By designing automated support, screening, and collection sections, the problems of low efficiency and inaccurate separation in manual shelling in existing technologies have been solved, achieving efficient and automated separation of peanut shells and peanut kernels, thus improving processing efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN YIDA AGRICULTURE CO LTD
- Filing Date
- 2025-05-22
- Publication Date
- 2026-05-15
AI Technical Summary
Existing nut shelling equipment relies on manual operation, which is inefficient, labor-intensive, and lacks an effective screening and separation mechanism, resulting in peanut shells being mixed with peanut kernels, increasing processing costs and time.
An automated nut shelling device was designed, comprising a support section, a screening section, and a collection section. The screening head is driven to rotate by a screening motor, and combined with air separation, the peanut shells and peanut kernels are automatically and accurately separated. The feed rate is controlled by a support adjustment plate to ensure the shelling quality.
It significantly improves shelling efficiency and product purity, reduces labor input and processing costs, and achieves efficient separation and rapid processing of peanut shells and peanut kernels, with a wide range of applications.
Smart Images

Figure CN224234658U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of nut processing technology, specifically a nut shelling device. Background Technology
[0002] Peanuts, an important legume crop originating in South America, are now widely cultivated globally. They are not only a crucial food resource but also possess significant economic value. In the peanut processing industry chain, shelling is a vital foundational step, and its processing efficiency and quality directly impact subsequent production and economic benefits.
[0003] Utility model patent CN221430180U discloses a nut shelling device, comprising a shelling equipment housing. Inside the housing, a crushing roller is provided, and a transmission gear is mounted on the rotating shaft of the crushing roller, with two sets of transmission gears meshing with each other. A protective shell is installed on the outside of the housing, and a grease reservoir is movably engaged with the protective shell. A rotating lubrication wheel is connected inside the grease reservoir, and the lubrication wheel is in close contact with the top of the transmission gear. A slidingly connected pressure block is also provided inside the grease reservoir. Whenever the crushing roller is driven by a motor, the transmission gear is automatically lubricated, thereby reducing the resistance and wear of the transmission gear, extending its service life, and ensuring smoother and more stable transmission. In addition, this device does not require manual addition of lubricating oil, the lubrication process is simple, and it helps to ensure the stable operation of the equipment and meet practical use requirements.
[0004] However, the existing technology relies on manual operation, which is extremely inefficient, labor-intensive, and costly. At the same time, the existing technology lacks an effective screening and separation mechanism, making it difficult to accurately distinguish between peanut shells and peanut kernels. This results in a large number of impurities in the shelled product, requiring additional screening, which not only increases processing costs but also reduces production efficiency. Utility Model Content
[0005] To address the aforementioned technical problems, this utility model provides the following technical solution: A nut shelling device, comprising a support frame, a sieving section, and a collecting section; the support section includes a supporting outer shell fixedly mounted on the support frame, a supporting inlet for feeding is provided at the top of the supporting outer shell, and multiple supporting sieving columns for discharging are spaced apart at the bottom of the supporting outer shell; the sieving section includes a second sieving shaft rotatably mounted inside the supporting outer shell, a sieving head slidably mounted on the second sieving shaft, a sieving return spring is provided between the sieving head and the second sieving shaft, a second large sieving pulley is fixedly mounted on the second sieving shaft, the second large sieving pulley is mounted on a second small sieving pulley via a second sieving belt, and the small sieving pulley is fixedly mounted on the output shaft of a sieving motor; the collecting section is located at the lower part of the supporting outer shell, the collecting section includes a collecting outer shell, a collecting inclined block is provided inside the collecting outer shell, multiple fluid holes for gas flow are provided on the collecting inclined block, a collecting fan blade is rotatably mounted below the collecting inclined block, and the collecting fan blade is fixedly mounted on the output shaft of a collecting motor.
[0006] Furthermore, a support adjustment plate for controlling the feed amount is slidably provided on the support feed inlet, and a support maintenance plate is rotatably provided on the side wall of the support housing.
[0007] Furthermore, the small screening pulley is mounted on the large screening pulley via a screening belt, the large screening pulley is fixedly mounted on the screening shaft, the screening shaft is rotatably mounted on the support, a screening eccentric wheel is fixedly mounted on the screening shaft, a screening connecting rod is rotatably mounted on the screening eccentric wheel, the other end of the screening connecting rod is rotatably mounted on the screening screen, a screening connecting piece one and a screening connecting piece two are rotatably mounted on the screening screen, the other end of screening connecting piece one is rotatably mounted on the support, and the other end of screening connecting piece two is rotatably mounted on the supporting shell.
[0008] Furthermore, the screening screen includes a filter screen and a side plate, the side plate being inclinedly disposed on the filter screen, and the filter screen being disposed on the top of the collection housing.
[0009] Furthermore, the collection box is detachably mounted on the bracket via a bottom groove, and a discharge port is provided on the side of the collection shell near the collection box.
[0010] The advantages of this utility model compared with the prior art are:
[0011] 1. High degree of automation and significantly improved processing efficiency: This device drives the screening head to rotate through the screening motor, realizing the automated operation of peanut shelling. There is no need for manual intervention in the peanut shelling process, which greatly reduces labor input and significantly improves shelling efficiency. At the same time, in conjunction with the collection motor to drive the fan blades for air separation, the whole process is continuous and efficient, which can realize the rapid processing of peanut shelling and screening, and meet the needs of large-scale production.
[0012] 2. Precise screening and separation: The shelled mixture is initially screened by a supporting screening column, allowing the broken peanut shells and peanut kernels to fall into the screening mesh. The screening mesh oscillates back and forth under the drive of the screening shaft and eccentric wheel, vibrating and screening the material. Combined with the airflow generated by the collecting fan blades, air separation is performed, using the weight difference between peanut shells and peanut kernels to accurately separate the two, effectively reducing the mixing of peanut shells and other impurities in peanut kernels, improving product purity and quality, avoiding additional screening processing, and reducing processing costs.
[0013] 3. Controllable feed rate ensures shelling quality: The device features a support adjustment plate at the feed inlet, allowing operators to flexibly adjust the channel size between the feed inlet and the outer shell to precisely control the number of peanuts entering the shell. This design prevents excessive feed from causing peanuts to squeeze against each other and resulting in insufficient shelling, ensuring that each peanut rubs against the screening head, the inner wall of the outer shell, and the screening column, thus guaranteeing stable shelling quality.
[0014] 4. Easy to maintain and use; the magnetic support inspection plate on the side wall of the supporting shell can be easily opened by the operator with the handle, which is convenient for cleaning and maintenance of the inside of the supporting shell, helps to keep the inside of the equipment clean, handle faults in a timely manner, and extend the service life of the equipment; the collection box is detachably mounted on the bracket through the bottom slide groove, which is convenient for quick replacement of the collection box after collection, and also facilitates the handling and subsequent processing of the collected peanuts. The overall structural design fully considers the convenience in actual use.
[0015] 5. Wide range of applications and flexible operation: The airflow size of this device for air separation can be directly controlled by the speed of the collecting motor. It can adjust the appropriate airflow intensity according to different varieties and conditions of peanuts to achieve the best separation effect. Compared with screening methods with fixed parameters, this device has a wider range of applications and can meet diverse production needs. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0017] Figure 2 This is a frontal view of the overall structure of this utility model.
[0018] Figure 3 This is a side view of the overall structure of this utility model.
[0019] Figure 4 This is a partial structural cross-sectional view of the collecting part of this utility model.
[0020] Figure 5 This is a partial structural diagram of the collecting part of this utility model.
[0021] Figure 6 This is a schematic diagram of a partial structure of the screening section of this utility model. Figure 1 .
[0022] Figure 7 This is a schematic diagram of a partial structure of the screening section of this utility model. Figure 2 .
[0023] Figure 8 This is a partial structural diagram of the support part of this utility model.
[0024] Figure 9 A partial cross-sectional view of the support structure of this utility model. Figure 1 .
[0025] Figure 10 A partial cross-sectional view of the support structure of this utility model. Figure 2 .
[0026] Figure 11 This is a partial structural diagram of the bracket of this utility model.
[0027] Reference numerals: 1-Collection section; 2-Screening section; 3-Support section; 4-Bracket; 101-Collection motor; 102-Collection fan blade; 103-Collection inclined block; 104-Collection outer shell; 105-Collection box; 201-Screening motor; 202-Screening small pulley; 203-Screening large pulley one; 204-Screening shaft one; 205-Screening connecting rod; 206-Screening eccentric wheel; 207-Screening screen; 208-Screening connecting piece one; 209-Screening connecting piece two; 210-Screening large pulley two; 211-Screening belt one; 212-Screening belt two; 213-Screening shaft two; 214-Screening head; 215-Screening return spring; 301-Supporting outer shell; 302-Supporting inlet; 303-Supporting adjusting plate; 304-Supporting maintenance plate; 305-Supporting screening column. Detailed Implementation
[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0029] like Figures 1 to 11 As shown, a nut shelling device includes a collecting part 1, a sieving part 2, a supporting part 3, and a bracket 4; the collecting part 1 is used to collect shelled peanuts, the sieving part 2 is used to initially sieve the peanut shells and peanuts, and the supporting part 3 cooperates with the sieving part 2 to separate the peanuts and peanut shells.
[0030] like Figures 1 to 11 As shown, the support part 3 includes a support shell 301, a support inlet 302, a support adjusting plate 303, a support maintenance plate 304, and support screening columns 305. The support shell 301 is fixedly mounted on the bracket 4. The top of the support shell 301 is provided with a support inlet 302 for feeding material. The support inlet 302 is rectangular. The bottom of the support shell 301 is provided with multiple support screening columns 305 for discharging material. The support screening columns 305 are cylindrical, and the spacing between the multiple support screening columns 305 is less than the diameter of the peanut. The support inlet... A support adjustment plate 303 for controlling the feed amount is slidably installed at the middle position of 302. The support adjustment plate 303 has a sheet-like structure and is used to control the size of the channel between the support feed inlet 302 and the support housing 301. A support maintenance plate 304 is rotatably installed on the side wall of the support housing 301. The support maintenance plate 304 and the support housing 301 are magnetically engaged. A handle is provided on the support maintenance plate 304. The operator opens the support maintenance plate 304 through the handle to facilitate cleaning and maintenance of the inside of the support housing 301.
[0031] like Figures 1 to 11 As shown, the screening unit 2 includes a screening motor 201, a small screening pulley 202, a first large screening pulley 203, a first screening shaft 204, a screening connecting rod 205, a screening eccentric wheel 206, a screening screen 207, a first screening connecting piece 208, a second screening connecting piece 209, a second large screening pulley 210, a first screening belt 211, a second screening belt 212, a second screening shaft 213, a screening head 214, and a screening return spring 215; the second screening shaft 213 is rotatably mounted inside the support housing 301, and the second screening shaft 21... A screening head 214 is slidably mounted on the 3rd section along the radial direction. The screening head 214 is provided with an arc-shaped groove to increase its friction with peanuts. The screening head 214 is made of rubber material. A screening return spring 215 is provided between the screening head 214 and the screening shaft 213. A large screening pulley 210 is fixedly mounted on the screening shaft 213. The large screening pulley 210 is mounted on the small screening pulley 202 via a screening belt 212. The small screening pulley 202 is fixedly mounted on the output shaft of the screening motor 201.
[0032] like Figures 1 to 11As shown, the screening motor 201 is fixedly mounted on the bracket 4. The small screening pulley 202 is mounted on the large screening pulley 203 via the screening belt 211. The large screening pulley 203 is fixedly mounted on the screening shaft 204. The screening shaft 204 is rotatably mounted on the bracket 4. A screening eccentric wheel 206 is fixedly mounted on the screening shaft 204. The center of the screening eccentric wheel 206 is not coaxial with the axis of the screening shaft 204. A screening connecting rod 205 is rotatably mounted on the screening eccentric wheel 206. The other end of the screening connecting rod 205 is rotatably mounted on the screening screen 207. A screening connecting piece 208 and a screening connecting piece 209 are rotatably mounted on the screening screen 207. The other end of the screening connecting piece 208 is rotatably mounted on the bracket 4, and the other end of the screening connecting piece 209 is rotatably mounted on the supporting shell 301. The screening screen 207 includes a filter screen and side plates. The side plates are inclinedly arranged on the filter screen to facilitate the peanuts, after initial shelling, to slide down onto the filter screen. The filter screen is located on top of the collection shell 104, and the diameter of the filter screen is larger than the diameter of the peanuts. The angle formed between the side plates and the filter screen is between 120 degrees and 160 degrees.
[0033] like Figures 1 to 11 As shown, the collecting part 1 is located at the lower part of the supporting housing 301. The collecting part 1 includes a collecting motor 101, a collecting fan blade 102, a collecting inclined block 103, a collecting housing 104, and a collecting box 105. The collecting inclined block 103 is provided inside the collecting housing 104. The top of the collecting housing 104 has an opening for collecting peanuts, and the bottom of the collecting housing 104 has a rectangular air inlet for air circulation. The collecting inclined block 103 has multiple fluid holes for gas circulation. The diameter of the fluid holes is smaller than the diameter of the peanuts. The inclined surface of the collecting inclined block 103 has an inclination angle of 45 degrees, allowing the peanuts to slide down the inclined surface into the collecting box 105. The collecting fan blade 102 is rotatably mounted below the collecting inclined block 103 and is fixedly mounted on the output shaft of the collecting motor 101. The collecting motor 101 is fixedly mounted on the bracket 4. The collecting box 105 is detachably mounted on the bracket 4 via a sliding groove at the bottom. The collecting housing 104 has a discharge port on the side near the collecting box 105.
[0034] like Figures 1 to 11 As shown, an outer shell can be added to the 207 to prevent peanut shells from being blown around by the airflow and increasing the difficulty of cleaning.
[0035] like Figures 1 to 11As shown, the nut shelling device disclosed in this utility model operates as follows: Peanuts to be shelled are fed into the support inlet 302. The screening motor 201 is turned on, causing the small screening pulley 202 to rotate. The rotation of the small screening pulley 202, via the second screening belt 212, drives the second screening pulley 210. The rotation of the second screening pulley 210 drives the second screening shaft 213 to rotate, which in turn drives the screening head 214 to rotate. The operator can then adjust the device by pulling the support adjustment plate 30. 3. By adjusting the size of the channel between the support feed inlet 302 and the support shell 301, the amount of peanuts entering the support shell 301 is controlled to prevent excessive peanuts from affecting the shelling quality. The peanuts entering the support shell 301 are driven by the rotating screening head 214, causing friction between the peanuts and the screening head 214, the inner wall of the support shell 301, and the support screening columns 305, thus crushing the peanut shells. The crushed peanut shells and kernels fall onto the screening mesh 207 through the gaps between the spaced support screening columns 305. Simultaneously, the rotation of the small screening pulley 202 drives the large screening pulley 203 via the screening belt 211. The rotation of the large screening pulley 203 drives the screening shaft 204, which in turn drives the screening connecting rod 205 via the screening eccentric wheel 206, pulling the screening mesh 207. This causes the screening mesh 207 to oscillate back and forth, vibrating the peanut shells and kernels falling onto it.
[0036] When the collecting motor 101 is turned on, its rotation drives the collecting fan blades 102 to rotate. As the collecting fan blades 102 rotate, air is drawn in through the air inlet at the bottom of the collecting housing 104, and then discharged through the fluid holes on the collecting inclined block 103. This air separation process separates the peanut kernels and shells on the screening screen 207. Since the broken peanut shells are lighter than the peanut kernels, the airflow from the collecting inclined block 103 and the collecting housing 104 blows them away. With the reciprocating oscillation of the screening screen 207, the peanut kernels fall from the screen onto the collecting inclined block 103 and, under gravity, slide down into the collecting box 105 for collection. This prevents broken peanut shells and other impurities from mixing with the peanut kernels, ensuring screening quality. The airflow for air separation is directly controlled by the rotation speed of the collecting motor 101, making it more widely applicable.
Claims
1. A nut shelling device, characterized in that: Including the support (4), characterized in that it further includes: Support part (3), the support part (3) includes a support shell (301) fixedly mounted on the bracket (4), the top of the support shell (301) is provided with a support feed port (302) for feeding, and the bottom of the support shell (301) is provided with a plurality of support screening columns (305) for discharging. The screening section (2) includes a screening shaft (213) rotatably disposed within a support housing (301), a screening head (214) slidably disposed on the screening shaft (213), a screening return spring (215) disposed between the screening head (214) and the screening shaft (213), a large screening pulley (210) fixedly disposed on the screening shaft (213), the large screening pulley (210) being disposed on a small screening pulley (202) via a screening belt (212), and the small screening pulley (202) being fixedly disposed on the output shaft of the screening motor (201). The collection unit (1) is located at the lower part of the support housing (301). The collection unit (1) includes a collection housing (104). A collection inclined block (103) is provided inside the collection housing (104). A plurality of fluid holes for gas flow are provided on the collection inclined block (103). A collection fan blade (102) is rotatably provided below the collection inclined block (103). The collection fan blade (102) is fixedly mounted on the output shaft of the collection motor (101).
2. The nut shelling device according to claim 1, characterized in that: A support adjustment plate (303) for controlling the feed amount is slidably provided on the support feed inlet (302), and a support maintenance plate (304) is rotatably provided on the side wall of the support housing (301).
3. The nut shelling device according to claim 2, characterized in that: The small screening pulley (202) is mounted on the large screening pulley (203) via the screening belt (211). The large screening pulley (203) is fixedly mounted on the screening shaft (204). The screening shaft (204) is rotatably mounted on the support (4). A screening eccentric wheel (206) is fixedly mounted on the screening shaft (204). A screening connecting rod (205) is rotatably mounted on the screening eccentric wheel (206). The other end of the screening connecting rod (205) is rotatably mounted on the screening screen (207). A screening connecting piece (208) and a screening connecting piece (209) are rotatably mounted on the screening screen (207). The other end of the screening connecting piece (208) is rotatably mounted on the support (4), and the other end of the screening connecting piece (209) is rotatably mounted on the supporting shell (301).
4. A nut shelling device according to claim 3, characterized in that: The screening screen (207) includes a filter screen and a side plate, the side plate being inclinedly disposed on the filter screen, and the filter screen being disposed on the top of the collection housing (104).
5. A nut shelling device according to claim 4, characterized in that: The collection box (105) is detachably mounted on the bracket (4) via a bottom groove, and the collection shell (104) has a discharge port on the side near the collection box (105).