Vibration cleaning sieve for production of selected rice

Abstract

The utility model discloses a vibration cleaning sieve for producing selected rice, which relates to the technical field of selected rice screening, and comprises a separation tank, a sealing cover is arranged at the top of the separation tank, the separation tank is connected with the sealing cover, a separation stirring cavity is arranged in the separation tank, and a separation device is arranged in the separation stirring cavity. The separation device comprises an anti-adhesion separation unit and a vibration screening unit, the anti-adhesion separation unit comprises an asynchronous motor, a driving shaft is arranged at the top of the asynchronous motor, a middle gear is arranged on the driving shaft, side gears are symmetrically distributed at the left end and the right end of the middle gear and located on a precise lead screw, and a threaded nut is arranged on a threaded part of the precise lead screw. The outer wall of the threaded nut is connected with a connecting rod, and the bottom of the connecting rod is provided with a scraping ring. According to the utility model, the anti-adhesion separation unit is arranged, so that the stirring operation and the wall scraping operation can be simultaneously carried out through one motor, the stirring operation and the wall scraping operation do not interfere with each other, an external device is not needed, and the cost is reduced while the subsequent maintenance burden is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of selected rice screening, in particular to a vibration cleaning screen for selected rice production. Background Art

[0002] Rice is a finished product made from paddy rice after processes such as cleaning, husking, milling and finishing. It contains nearly 64% of the nutrients in rice and more than 90% of the nutrients needed by the human body. It is also the staple food for people in most parts of China.

[0003] Rice generally needs to be screened to remove large particles of impurities, stone chips, etc. Traditionally, rice generally needs to be screened with a vibrating screen, but the screen needs to be cleaned regularly during the screening process, which is inconvenient, time-consuming and laborious, and dust will float during the screening process, affecting people's health. Therefore, it is necessary to provide a vibrating cleaning screen for rice processing to solve the above technical problems.

[0004] For example, a vibrating cleaning screen for rice processing disclosed in Chinese patent publication number CN212216199U starts a first motor, and the hopper drives the rice inside to shake and screen it. When unloading is required, the second motor is started, and the second connecting shaft drives the hopper to rotate, so that the remaining impurities on the filter screen are dumped out, which is more time-saving and labor-saving. During the screening process, excessive dust will be generated, and the fan can be started. After further filtering through the dustproof net, the dust in the air is reduced, protecting human health.

[0005] The existing technology has the following problems:

[0006] However, in the actual screening process, because the surface of rice may contain moisture and be sticky, it is easy to cause the initial screening to fail, and the wet rice is easy to stick to the inner wall of the screening chamber, resulting in food waste. Utility Model Content

[0007] The utility model provides a vibrating cleaning screen for selecting rice for production, so as to solve the problems raised in the above-mentioned background technology.

[0008] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0009] A vibrating cleaning screen for selected rice production comprises a separation tank, a sealing cover is provided on the top of the separation tank, the separation tank is connected to the sealing cover, a separation stirring chamber is provided in the separation tank, a separation device is provided in the separation stirring chamber, the separation device comprises an anti-adhesion separation unit and a vibration screening unit, the anti-adhesion separation unit comprises an asynchronous motor, a driving shaft is provided on the top of the asynchronous motor, a middle gear is provided on the driving shaft, side gears are symmetrically distributed at left and right ends of the middle gear, the side gears are located on a precision screw rod, a threaded nut is provided on a threaded portion of the precision screw rod, a connecting rod is connected to an outer wall of the threaded nut, and a scraping ring is provided at the bottom of the connecting rod.

[0010] The technical solution adopted by the utility model for scraping off the rice adhered to the inner wall of the separation tank is that the asynchronous motor rotates the driving shaft. Because the driving shaft is keyed to the middle gear and the middle gear is meshed with the side gear, the side gear starts to rotate, causing the precision screw to rotate. Finally, the threaded nut causes the connecting rod to rise and fall in the separation stirring chamber due to the threaded connection, and finally the scraping circle scrapes off the rice on the inner wall to stir it. The advantage of the technical solution adopted by the utility model is that the lifting and lowering of the scraping circle will not affect the normal operation of the stirring, and the two shafts of the asynchronous motor can make the stirring and wall scraping be carried out simultaneously without the aid of external devices, thereby reducing the subsequent maintenance burden and reducing costs.

[0011] A further improvement of the technical solution of the utility model is that in order to transmit power, the utility model adopts that the asynchronous motor is connected to the drive shaft through a coupling, the drive shaft is connected to the middle gear key, the middle gear is meshed with the side gears at both ends, the side gears are connected to the precision screw key, and the precision screw is vertically rotatably installed on the sealing cover through a bearing.

[0012] A further improvement of the technical solution of the utility model is that in order to enable the scraping ring to be raised and lowered after the asynchronous motor is started without the need for external device to drive it, the precision screw is threadedly connected to the threaded nut through an external thread, the threaded nut is welded to the connecting rod, the connecting rod is slidably connected to the sealing cover, the connecting rod is fixedly connected to the scraping ring, and the scraping ring is slidably connected to the separation tank.

[0013] A further improvement of the technical solution of the utility model is that: a stirring shaft is provided at the other end of the asynchronous motor, a sealing member is provided at the connection between the stirring shaft and the sealing cover, and a stirring blade is provided on the axis of the stirring shaft, the stirring shaft is rotatably connected to the sealing cover, the stirring shaft is fixedly connected to the stirring blade, and the stirring shaft does not contact the inner wall of the scraping circle.

[0014] A further improvement of the technical solution of the utility model is that the vibration screening unit includes a guide discharge plate, two groups of the guide discharge plates are provided and symmetrically distributed in the separation stirring chamber, the ends of the two guide discharge plates close to each other form a discharge channel, a discharge pipe is provided at the bottom of the separation tank, a screening mixed flow pump is provided in the discharge pipe, an outlet pipe is provided at the other end of the discharge pipe, a rotating shaft is provided in the closed space formed by the guide discharge plate and the inner wall of the separation tank, one end of the rotating shaft is connected to a driving motor, and a vibrating screen wheel is provided on the rotating shaft.

[0015] A further improvement of the technical solution of the utility model is that: the guide discharge plate is fixedly installed in the separation stirring chamber, the discharge pipe is fixedly installed at the bottom of the separation tank, the outlet pipe is fixedly connected to the discharge pipe, the rotating shaft is rotatably connected to the separation tank and the rotating shaft is connected to the driving motor through a coupling, the rotating shaft is fixedly connected to the vibrating screen wheel, and the vibrating screen wheel is slidably connected to the guide discharge plate.

[0016] In order to avoid the situation of blockage when the rice is discharged, the utility model drives the rotating shaft to rotate by a driving motor, and then the vibrating screen wheel hits the guide discharge plate to generate vibration and deformation, so that the rice adhered to the guide discharge plate oscillates, enters the discharge pipe or close to the discharge pipe, and is then extracted by a screening mixed flow pump.

[0017] A further improvement of the technical solution of the utility model is that in order to prevent the guide blanking plate from being too rigid so that the vibration screen wheel will not deform or vibrate when it hits the guide blanking plate during rotation, the guide blanking plate is an aluminum alloy profile.

[0018] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0019] 1. The utility model provides a vibrating cleaning screen for selected rice production. By setting an anti-adhesion separation unit, stirring operation and wall scraping operation can be performed simultaneously by one motor, and stirring and wall scraping do not interfere with each other, and no external device is needed, so as to avoid a large amount of rice sticking to the inner wall, and ensure the normal operation of subsequent screening and separation.

[0020] 2. The utility model provides a vibrating cleaning screen for selected rice production. The vibrating screening unit prevents the stirred and separated rice from being blocked during the feeding process, thereby enabling the screening to operate normally and greatly improving the practicability of the overall device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 3 It is a structural schematic diagram of the anti-adhesion separation unit of the utility model;

[0024] Figure 4 It is a structural schematic diagram of the vibration screening unit of the utility model.

[0025] In the figure: 1, separation tank; 2, sealing cover; 301, asynchronous motor; 302, drive shaft; 303, middle gear; 304, side gear; 305, precision screw; 306, threaded nut; 307, connecting rod; 308, scraper ring; 309, stirring shaft; 310, stirring blade; 401, guide discharge plate; 402, discharge channel; 403, discharge pipe; 404, screening mixed flow pump; 405, outlet pipe; 406, rotating shaft; 407, drive motor; 408, vibrating screen wheel. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-Figure 4 , the utility model provides a technical solution:

[0028] Embodiment 1:

[0029] A vibrating cleaning screen for selected rice production comprises a separation tank 1, a sealing cover 2 is arranged on the top of the separation tank 1, the separation tank 1 is connected to the sealing cover 2, a separation stirring chamber is opened in the separation tank 1, a separation device is arranged in the separation stirring chamber, and the separation device comprises an anti-adhesion separation unit and a vibration screening unit; the anti-adhesion separation unit comprises an asynchronous motor 301, a driving shaft 302 is arranged on the top of the asynchronous motor 301, a middle gear 303 is arranged on the driving shaft 302, side gears 304 are symmetrically distributed on the left and right ends of the middle gear 303, the side gears 304 are located on a precision screw rod 305, a threaded nut 306 is arranged on the threaded portion of the precision screw rod 305, a connecting rod 307 is connected to the outer wall of the threaded nut 306, and a scraping ring 308 is arranged at the bottom of the connecting rod 307.

[0030] The technical solution adopted by the utility model for scraping the rice adhered to the inner wall of the separation tank 1 is that the asynchronous motor 301 rotates the drive shaft 302. Since the drive shaft 302 is key-connected with the middle gear 303 and the middle gear 303 is meshed with the side gear 304, the side gear 304 starts to rotate, causing the precision screw 305 to rotate. Finally, the threaded nut 306 makes the connecting rod 307 rise and fall in the separation and stirring chamber due to the threaded connection, and finally the scraping circle 308 scrapes the rice on the inner wall to stir it. The advantage of the technical solution adopted by the utility model is that the lifting and lowering of the scraping circle 308 will not affect the normal operation of stirring, and the two shafts of the asynchronous motor 301 can make stirring and scraping the wall simultaneously, avoiding a large amount of rice adhering to the inner wall, and ensuring the normal operation of subsequent screening and separation.

[0031] In order to transmit power, the utility model adopts that the asynchronous motor 301 is connected to the drive shaft 302 through a coupling, the drive shaft 302 is key-connected to the middle gear 303, the middle gear 303 is meshed with the side gears 304 at both ends, the side gears 304 are key-connected to the precision screw 305, and the precision screw 305 is vertically rotatably installed on the sealing cover 2 through a bearing.

[0032] In order to enable the scraping ring 308 to be raised and lowered after the asynchronous motor 301 is started without the need for external driving, the precision screw 305 is threadedly connected to the threaded nut 306 through an external thread, the threaded nut 306 is welded to the connecting rod 307, the connecting rod 307 is slidingly connected to the sealing cover 2, the connecting rod 307 is fixedly connected to the scraping ring 308, and the scraping ring 308 is slidingly connected to the separation tank 1.

[0033] A stirring shaft 309 is provided at the other end of the asynchronous motor 301. A seal is provided at the connection between the stirring shaft 309 and the sealing cover 2, and a stirring blade 310 is provided on the axis of the stirring shaft 309. The stirring shaft 309 is rotatably connected to the sealing cover 2, the stirring shaft 309 is fixedly connected to the stirring blade 310, and the stirring shaft 309 does not contact the inner wall of the scraping circle 308.

[0034] Embodiment 2:

[0035] On the basis of Example 1: the vibration screening unit includes a guide discharge plate 401, two groups of guide discharge plates 401 are provided and symmetrically distributed in the separation stirring chamber, and the ends of the two guide discharge plates 401 close to each other form a discharge channel 402, a discharge pipe 403 is provided at the bottom of the separation tank 1, a screening mixed flow pump 404 is provided in the discharge pipe 403, and an outlet pipe 405 is provided at the other end of the discharge pipe 403. A rotating shaft 406 is provided in the closed space formed by the guide discharge plate 401 and the inner wall of the separation tank 1, one end of the rotating shaft 406 is connected to a driving motor 407, and a vibrating screen wheel 408 is provided on the rotating shaft 406.

[0036] The guide discharge plate 401 is fixedly installed in the separation stirring chamber, the discharge pipe 403 is fixedly installed at the bottom of the separation tank 1, the outlet pipe 405 is fixedly connected to the discharge pipe 403, the rotating shaft 406 is rotatably connected to the separation tank 1 and the rotating shaft 406 is connected to the driving motor 407 through a coupling, the rotating shaft 406 is fixedly connected to the vibrating screen wheel 408, and the vibrating screen wheel 408 is slidably connected to the guide discharge plate 401.

[0037] In order to avoid blockage when the rice is discharged, the utility model drives the rotating shaft 406 to rotate by driving the motor 407, and then the vibrating screen wheel 408 hits the guide discharge plate 401 to generate vibration and deformation, so that the rice adhered to the guide discharge plate 401 oscillates, enters the discharge pipe 403 or near the discharge pipe 403, and is then extracted by the screening mixed flow pump 404.

[0038] Embodiment three:

[0039] Based on the second embodiment:

[0040] In order to prevent the guide blanking plate 401 from being too rigid and causing the vibration screen wheel 408 to rotate and hit and cause the guide blanking plate 401 to deform or vibrate, the guide blanking plate 401 is made of aluminum alloy.

[0041] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A vibrating cleaning screen for selected rice production, comprising a separation tank (1), a sealing cover (2) is provided on the top of the separation tank (1), the separation tank (1) is connected to the sealing cover (2), and a separation stirring chamber is provided in the separation tank (1), characterized in that: A separation device is provided in the separation stirring chamber, and the separation device includes an anti-adhesion separation unit and a vibration screening unit; The anti-adhesion separation unit comprises an asynchronous motor (301), a driving shaft (302) is provided on the top of the asynchronous motor (301), a middle gear (303) is provided on the driving shaft (302), side gears (304) are symmetrically distributed on the left and right ends of the middle gear (303), the side gears (304) are located on a precision screw (305), a threaded nut (306) is provided on the threaded portion of the precision screw (305), a connecting rod (307) is connected to the outer wall of the threaded nut (306), and a scraping ring (308) is provided at the bottom of the connecting rod (307).

2. The vibrating cleaning screen for selected rice production according to claim 1, characterized in that: The asynchronous motor (301) is connected to the driving shaft (302) via a coupling, the driving shaft (302) is key-connected to the middle gear (303), the middle gear (303) is meshed with the side gears (304) at both ends, the side gears (304) are key-connected to the precision screw (305), and the precision screw (305) is vertically rotatably mounted on the sealing cover (2) via a bearing.

3. The vibrating cleaning screen for selected rice production according to claim 2, characterized in that: The precision screw rod (305) is threadedly connected to the threaded nut (306) via an external thread, the threaded nut (306) is welded to the connecting rod (307), the connecting rod (307) is slidably connected to the sealing cover (2), the connecting rod (307) is fixedly connected to the scraping ring (308), and the scraping ring (308) is slidably connected to the separation tank (1).

4. The vibrating cleaning screen for selected rice production according to claim 1, characterized in that: The other end of the asynchronous motor (301) is provided with a stirring shaft (309), a sealing member is provided at the connection between the stirring shaft (309) and the sealing cover (2), and a stirring blade (310) is provided on the axis of the stirring shaft (309), the stirring shaft (309) is rotatably connected to the sealing cover (2), the stirring shaft (309) and the stirring blade (310) are fixedly connected, and the stirring shaft (309) does not contact the inner wall of the scraping ring (308).

5. The vibrating cleaning screen for selected rice production according to claim 1, characterized in that: The vibration screening unit comprises a guide discharge plate (401), wherein two groups of the guide discharge plates (401) are provided and symmetrically distributed in the separation stirring chamber, and the ends of the two guide discharge plates (401) close to each other form a discharge channel (402), a discharge pipe (403) is provided at the bottom of the separation tank (1), a screening mixed flow pump (404) is provided in the discharge pipe (403), and an outlet pipe (405) is provided at the other end of the discharge pipe (403), and a rotating shaft (406) is provided in the closed space formed by the guide discharge plates (401) and the inner wall of the separation tank (1), one end of the rotating shaft (406) is connected to a driving motor (407), and a vibration screen wheel (408) is provided on the rotating shaft (406).

6. The vibrating cleaning screen for selected rice production according to claim 5, characterized in that: The guide discharge plate (401) is fixedly installed in the separation stirring chamber, the discharge pipe (403) is fixedly installed at the bottom of the separation tank (1), the outlet pipe (405) is fixedly connected to the discharge pipe (403), the rotating shaft (406) is rotationally connected to the separation tank (1) and the rotating shaft (406) is connected to the driving motor (407) through a coupling, the rotating shaft (406) is fixedly connected to the vibration screen wheel (408), and the vibration screen wheel (408) is slidably connected to the guide discharge plate (401).

7. The vibrating cleaning screen for selected rice production according to claim 5, characterized in that: The guide blanking plate (401) is an aluminum alloy profile.

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