Pea screening machine

Abstract

The utility model provides a pea screening machine which comprises a screening box and a sorting assembly arranged in the screening box, a feeding hopper is arranged at the upper end of the screening box, the lower end of the screening box is open, and a supporting table is arranged on the lower end face of the screening box. One side of the screening frame is rotationally connected into the separation box, the driving part is used for driving the screening frame to swing up and down relative to the supporting table, an opening is formed in the lower end of the screening frame, and the driving part comprises a driving part arranged on the supporting table and in transmission connection with an eccentric disc so as to drive the eccentric disc to rotate; one end of the connecting rod is movably connected with the eccentric disc through a bearing gland, and the other end of the connecting rod is movably connected with the screening frame through a hinge seat, so that the driving piece drives the screening frame to swing up and down for screening and discharge through an opening in the lower end of the screening frame, traditional manual screening is effectively replaced, the labor intensity of workers is relieved, and the screening efficiency is improved; and meanwhile, flying dust generated in the screening process is reduced, and the health of workers is protected.

Description

Technical Field

[0001] The utility model relates to the technical field of bean screening devices, in particular to a pea screening machine. Background Art

[0002] Peas are a nutritious food, particularly rich in trace elements such as copper and chromium. Copper supports hematopoiesis, bone and brain development; chromium aids sugar and fat metabolism, maintaining normal insulin function. The choline and methionine in peas help prevent arteriosclerosis. Fresh peas also contain the highest amount of vitamin C of all fresh beans. Peas are beneficial for people with diabetes, hypertension, coronary heart disease, the elderly, and children.

[0003] Peas are small, spherical peas. Farmers can profit more by sorting the peas by size and selling them individually. However, because peas are so small, manual sorting is practically impossible, forcing farmers to sell them in bulk, resulting in significant profit losses.

[0004] Chinese utility model patent application number CN201820795913.0 discloses a device for screening peas. This device can sort peas placed on a screening plate into two categories based on size, allowing the peas to be sold separately by category to increase sales profits. However, the device requires manual rotation of a rocker to drive a drive wheel, which in turn drives the screening plate via a connecting rod. Prolonged operation can cause fatigue to workers, reducing work efficiency. Furthermore, the dust generated during the screening process can affect workers' health. Utility Model Content

[0005] In response to the deficiencies in the prior art, the utility model provides a pea screening machine to solve the technical problems that the device for screening peas in the above-mentioned patent will cause workers to become tired after long-term use, thereby reducing work efficiency, and the dust generated during the screening process will also affect the health of workers.

[0006] The utility model provides a pea screening machine, comprising a screening box and a sorting assembly arranged inside the screening box, wherein the upper end of the screening box is provided with a feed hopper, the lower end of the screening box is open, and the lower end surface of the screening box is provided with a support platform, the sorting assembly comprises a screening frame rotatably connected to the inside of the screening box on one side and a driving component for driving the screening frame to swing up and down relative to the support platform, the lower end of the screening frame has an opening, and the driving component comprises:

[0007] A driving member is disposed on the supporting platform and is transmission-connected to the eccentric disk to drive the eccentric disk to rotate;

[0008] The connecting rod is movably connected to the eccentric disc at one end through a bearing gland and movably connected to the screening frame at the other end through a hinge seat.

[0009] Furthermore, a fixed rod is provided on one outer wall of the screening box. The fixed rod is connected to a rotating shaft through a connecting arm, and the rotating shaft is rotatably connected inside the screening box.

[0010] Furthermore, the output end of the driving member is coaxially connected to a driving wheel. The driving wheel is connected to a driven wheel through a belt drive, and the eccentric disc is connected to the driven wheel through a transmission shaft.

[0011] Furthermore, two bearing brackets are mirror-symmetrically arranged on the support table. The two bearing brackets are located on both sides of the eccentric disc, and the transmission shaft is rotatably installed on the two bearing brackets.

[0012] Furthermore, a first screening plate and a second screening plate are arranged up and down in the screening frame. First guide plates and second guide plates are respectively provided on the same side of the first screening plate and the second screening plate, and a first guide channel, a second guide channel, and a third guide channel are formed through the first guide plates and the second guide plates.

[0013] Furthermore, a discharge hopper is provided at the lower end of the screening frame. A first discharge channel, a second discharge channel, and a third discharge channel that are connected to the first guide channel, the second guide channel, and the third guide channel are provided in the discharge hopper; a discharge opening is provided on the support table, and the discharge ends of the first discharge channel, the second discharge channel, and the third discharge channel all face the discharge opening.

[0014] Furthermore, the screening holes in the first screening plate are larger than those in the second screening plate.

[0015] Furthermore, the first screening plate and the second screening plate have an inclined angle.

[0016] Compared with the prior art, the present utility model has the following beneficial effects:

[0017] When in use, for the pea screening machine of the present utility model, peas enter the screening box through the feeding hopper, and then the driving member is started. Through the rotation of the eccentric disc, one end of the connecting rod is driven to move, and then the other end of the connecting rod drives the screening frame to swing up and down. The up and down swing of the screening frame enables effective screening of the peas in the screening frame, and the peas are discharged through the lower opening of the screening frame. The traditional manual screening is replaced by a mechanized method, which reduces the labor intensity of workers, improves the screening efficiency, and at the same time, the enclosed screening box can reduce the dust flying generated during the screening process and protect the health of workers. Description of the Drawings

[0018] Figure 1This is a cross-sectional schematic diagram of a screening box in a pea screening machine according to an embodiment of the present invention;

[0019] Figure 2 for Figure 1 A local enlarged schematic diagram in FIG.

[0020] Figure 3 for Figure 1 The main view diagram in ;

[0021] Figure 4 This is a cross-sectional diagram of a screening frame in a pea screening machine according to an embodiment of the present invention. Figure 1 , the hopper is not shown;

[0022] Figure 5 for Figure 4 A local enlarged schematic diagram in FIG.

[0023] Figure 6 This is a cross-sectional diagram of a screening frame in a pea screening machine according to an embodiment of the present invention. Figure 2 , showing the hopper;

[0024] Figure 7 for Figure 6 A local enlarged schematic diagram in FIG.

[0025] Description of Figure Numbers:

[0026] 10. Screening box; 11. Feed hopper; 12. Support platform; 121. Discharge port;

[0027] 20. Sorting components;

[0028] 21. Screening frame; 211. First screening plate; 212. Second screening plate; 213. First material guide plate; 214. Second material guide plate; 215. First material guide channel; 216. Second material guide channel; 217. Third material guide channel;

[0029] 22. Driving component; 221. Driving member; 222. Eccentric disk; 223. Connecting rod; 224. Bearing cover; 225. Articulated seat; 226. Fixing rod; 227. Connecting arm; 228. Rotating shaft; 229. Bearing frame; 230. Driving pulley; 231. Driven pulley; 232. Belt; 233. Transmission shaft;

[0030] 23. Discharge hopper; 231. First discharge channel; 232. Second discharge channel; 233. Third discharge channel.

[0031] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and beneficial effects of the present invention more clearly understood, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0033] In the description of the present invention, it should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of the present specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by those familiar with the technology, and are not intended to limit the applicable conditions of the present invention. Therefore, they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed in the present invention without affecting the efficacy and purpose of the present invention. At the same time, terms such as "upper", "lower", "left", "right", "middle", and "one" cited in the present specification are only for the convenience of description and are not intended to limit the applicable scope of the present invention. Changes or adjustments in their relative relationships should also be considered as the applicable scope of the present invention without substantially changing the technical content.

[0034] like Figures 1 - 3 As shown, the embodiment of the present invention provides a pea screening machine, including a screening box 10 and a sorting assembly 20 arranged inside the screening box 10 and used to screen peas. The upper end of the screening box 10 is provided with a feed hopper 11 for feeding peas into the screening box 10 for screening. The lower end of the screening box 10 is open, and the lower end surface of the screening box 10 is provided with a support platform 12 for supporting the structure of the entire screening machine and providing an installation position for the sorting assembly 20. The sorting assembly 20 includes a screening frame 21 rotatably connected to the inside of the screening box 10 on one side and a mechanism for driving the screening frame. 21 is a driving component 22 that swings up and down relative to the support platform 12. The lower end of the screening frame 21 has an opening. The driving component 22 includes a driving member 221 and a connecting rod 223. The driving member 221 is arranged on the support platform 12 and has an eccentric disk 222 for transmission connection (such as a belt 232 or a chain) to drive the eccentric disk 222 to rotate. One end of the connecting rod 223 is movably connected to the eccentric disk 222 through a bearing cover 224, and the other end is movably connected to the screening frame 21 through a hinge seat 225. The driving member 221 can adopt a motor purchased from the market, which can be used after corresponding installation.

[0035] In the embodiment of the present utility model, during use, peas enter the screening box 10 through the feeding hopper 11, and then the driving member 221 is started. Through the rotation of the eccentric disk 222, one end of the connecting rod 223 is driven to move, and then the other end of the connecting rod 223 drives the screening frame 21 to swing up and down. The up and down swinging of the screening frame 21 enables effective screening of the peas within the screening frame 21, and the peas are discharged through the lower opening of the screening frame 21. The mechanized method replaces the traditional manual screening, reduces the labor intensity of workers, improves the screening efficiency, and at the same time, the enclosed screening box 10 can reduce the dust flying generated during the screening process and protect the health of workers.

[0036] Specifically, as Figures 1 - 3 shown, in the embodiment of the present utility model, a fixed rod 226 is provided on one outer wall of the screening box 10. The fixed rod 226 is connected to a rotating shaft 228 through a connecting arm 227. The rotating shaft 228 is rotatably connected inside the screening box 10. By connecting the rotating shaft 228 to the outside of the screening box 10 through the fixed rod 226 and the connecting arm 227, the support points of the screening frame 21 are increased, making the screening frame 21 more stable during swinging, and reducing shaking and deviation.

[0037] When the connecting rod 223 drives the screening frame 21 to swing, the rotating shaft 228 serves as a support point to ensure that the screening frame 21 can swing smoothly up and down inside the screening box 10.

[0038] Specifically, as Figures 1 - 3 shown, in the embodiment of the present utility model, the output end of the driving member 221 is coaxially connected to a driving wheel 230. The driving wheel 230 is drivingly connected to a driven wheel 231 through a belt 232. The eccentric disk 222 is connected to the driven wheel 231 through a transmission shaft 233. Through this design, effective power transmission can be achieved, and the structure of the driving component 22 is made more compact and efficient.

[0039] After the driving member 221 is started, the driving wheel 230 coaxially connected to its output end starts to rotate. When the driving wheel 230 rotates, it drives the driven wheel 231 to rotate through the belt 232. The belt 232 transmission can achieve gapless power transmission and can adjust the tension to ensure the transmission efficiency. The driven wheel 231 is connected to the eccentric disk 222 through the transmission shaft 233. The rotation of the driven wheel 231 drives the eccentric disk 222 to rotate through the transmission shaft 233. The rotation of the eccentric disk 222 drives the screening frame 21 to swing up and down through mechanisms such as the connecting rod 223, realizing the screening function.

[0040] Specifically, as Figures 1 - 3As shown, in the embodiment of the present utility model, the diameter of the driving wheel 230 is smaller than that of the driven wheel 231. Since the driving wheel 230 has a small diameter and the driven wheel 231 has a large diameter, the rotation speed of the driven wheel 231 will be slower, so that the driven wheel 231 has a greater torque when rotating, and thus can drive the screening frame 21 to perform screening work more effectively through the eccentric disc 222.

[0041] Specifically, as Figures 1 - 3 shown, in the embodiment of the present utility model, two bearing brackets 229 are mirror-symmetrically arranged on the support table 12. The two bearing brackets 229 are located on both sides of the eccentric disc 222. The transmission shaft 233 is rotatably installed on the two bearing brackets 229. By arranging two bearing brackets 229 on both sides of the eccentric disc 222, more stable support can be provided for the transmission shaft 233, ensuring that the transmission shaft 233 is more stable when rotating and reducing shaking and offset.

[0042] Specifically, as Figures 4 - 5 shown, in the embodiment of the present utility model, a first screening plate 211 and a second screening plate 212 are arranged up and down in the screening frame 21. First guide plates 213 and second guide plates 214 are respectively arranged on the same side of the first screening plate 211 and the second screening plate 212, and a first guide channel 215, a second guide channel 216 and a third guide channel 217 are formed through the first guide plates 213 and the second guide plates 214. By arranging the screening plates of the first screening plate 211 and the second screening plate 212, three-stage screening of peas can be realized, improving the screening efficiency and screening accuracy. When the peas pass through the first screening plate 211 and the second screening plate 212, they can be screened step by step and discharged through the corresponding first guide channel 215, second guide channel 216 and third guide channel 217.

[0043] The peas first fall on the first screening plate 211. Through the sieve holes of the first screening plate 211, the larger-sized peas remain on the first screening plate 211 and are discharged through the first guide channel 215. The smaller-sized peas pass through the sieve holes of the first screening plate 211 and fall onto the second screening plate 212. The second screening plate 212 screens the peas that have passed through the first screening plate 211 again. Through the sieve holes of the second screening plate 212, the smaller-sized peas continue to fall downward and are discharged through the third guide channel 217. The larger-sized peas remain on the second screening plate 212 and are discharged through the second guide channel 216, thus realizing three-stage screening of the peas.

[0044] Specifically, as Figures 6 - 7As shown, in the embodiment of the present utility model, a discharge hopper 23 is provided at the lower end of the screening frame 21. A first discharge channel 231, a second discharge channel 232, and a third discharge channel 233 that are communicated with the first material guiding channel 215, the second material guiding channel 216, and the third material guiding channel 217 are arranged in the discharge hopper 23. A discharge opening 121 is formed in the support table 12. The discharge ends of the first discharge channel 231, the second discharge channel 232, and the third discharge channel 233 all face the discharge opening 121. The design of the discharge channels enables the screened peas to be directly guided to the discharge opening 121, facilitating subsequent centralized collection and further processing.

[0045] Specifically, as Figures 4 - 5 shown, in the embodiment of the present utility model, the screening holes in the first screening plate 211 are larger than those in the second screening plate 212. Through hierarchical screening, peas of different sizes can be separated, and further processed or directly used according to different specification requirements, improving the utilization rate of peas.

[0046] Specifically, as Figure 3 shown, in the embodiment of the present utility model, the first screening plate 211 and the second screening plate 212 have an inclined angle to increase the residence time of the peas on the screening plate, making it easier for the peas to pass through the screening holes and improving the screening efficiency.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and not to limit them. Although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present utility model can be modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present utility model, and they should all be covered within the scope of the claims of the present utility model.

Claims

1. A pea screening machine, characterized in that, It includes a screening box and a sorting component arranged inside the screening box. An inlet hopper is provided at the upper end of the screening box. The lower end of the screening box is open, and a support platform is arranged on the lower end surface of the screening box. The sorting component includes a screening frame rotatably connected to one side inside the screening box and a driving component for driving the screening frame to swing up and down relative to the support platform. The lower end of the screening frame has an opening. The driving component includes: A driving member, arranged on the support platform and drivingly connected with an eccentric disc to drive the eccentric disc to rotate; A connecting rod, one end of which is movably connected with the eccentric disc through a bearing gland, and the other end of which is movably connected with the screening frame through a hinge seat.

2. The pea screening machine according to claim 1, characterized in that, A fixed rod is arranged on the outer wall of one side of the screening box. The fixed rod is connected with a rotating shaft through a connecting arm, and the rotating shaft is rotatably connected inside the screening box.

3. A pea screening machine according to claim 1, characterized in that, The output end of the driving member is coaxially connected with a driving wheel. The driving wheel is drivingly connected with a driven wheel through a belt, and the eccentric disc is connected with the driven wheel through a transmission shaft.

4. The pea screening machine according to claim 3, wherein Two bearing brackets are mirror-symmetrically arranged on the support platform. The two bearing brackets are located on both sides of the eccentric disc, and the transmission shaft is rotatably installed on the two bearing brackets.

5. A pea screening machine according to claim 1, characterized in that, A first screening plate and a second screening plate are arranged up and down inside the screening frame. First guide plates and second guide plates are respectively arranged on the same side of the first screening plate and the second screening plate, and a first guide channel, a second guide channel and a third guide channel are formed through the first guide plates and the second guide plates.

6. The pea screening machine according to claim 5, characterized in that, An outlet hopper is arranged at the lower end of the screening frame. First outlet channels, second outlet channels and third outlet channels communicated with the first guide channel, the second guide channel and the third guide channel are arranged inside the outlet hopper; an outlet opening is formed on the support platform, and the outlet ends of the first outlet channels, the second outlet channels and the third outlet channels all face the outlet opening.

7. A pea screening machine according to claim 5, characterized in that, The screening holes in the first screening plate are larger than the screening holes in the second screening plate.

8. The pea screening machine according to claim 5, wherein, The first screening plate and the second screening plate have an inclined angle.

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