Paddy rice separator with pre-screening mechanism
By introducing a pre-screening device and a rocking rod vibration conduction in the gravel separator, the problem of powdered debris being mixed into the material is solved, and higher material purity and cost-effectiveness are achieved.
Patent Information
- Application Number
- CN202422125270.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-30
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-08-30
AI Technical Summary
When screening with existing grain separators, powdered debris such as rice flour and dust are easily mixed into the screened material, affecting the purity of the material.
A gravel separator with a pre-screening mechanism is designed, including a pre-screening device and a vibration screening box. The powdered debris is screened out before the material enters the vibration screening box through the pre-screening device, and vibration is conducted using a shaker to replace a separate vibration motor to reduce costs.
Effectively prevent powdered materials from being mixed into the screened materials, improving the purity of the materials, reducing costs and improving resource utilization efficiency.
Smart Images
Figure CN223249828U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of grain machinery, in particular to a grain and rough grain separator with a pre-screening mechanism. Background Art
[0002] The rice bran separator is a device that separates materials based on weight and size differences. It is widely used in fields such as farmland, farms, and grain processing companies. Through the coordinated action of screens, rotating drums, vibrating screens, wind screens, gravity screens and other components, it can efficiently separate different materials such as brown rice, white rice, bran, broken rice, etc. in rice, thereby improving the efficiency and quality of rice processing. The gravity screen is a device that places the material to be screened on an inclined screen plate. Due to the different gravity of each material, different products can be obtained through vibration screening.
[0003] However, when the current rice-rough separator is screening, the material to be screened often contains a large amount of powdery debris (such as rice flour, dust, smaller rice husks, etc. produced by shelling). After entering the rice-rough separator, part of this material will adhere to the screen plate, and the other part will be mixed into the screened material. Utility Model Content
[0004] In order to solve the problem in the above background technology that powdered impurities are mixed into the material after screening, the purpose of the present utility model is to provide a rice-rough separator with a pre-screening mechanism.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a rice-rough separator with a pre-screening mechanism, comprising a bracket, on which two relatively arranged vibrating screening boxes are movably mounted, a feed hopper is mounted on the bracket, a distribution hopper is mounted on the bracket, and a grain elevator is mounted on the bracket, wherein the grain elevator is located between the feed hopper and the distribution hopper, a rotating shaft is mounted on one side of the bracket, one end of the rotating shaft is mounted on a driving wheel, a driving motor is mounted on the bracket, and the driving motor is connected to the driving wheel through a corresponding pulley and a belt drive, an articulated mounting seat is mounted on one side of the vibrating screening box, a connecting rod is articulated on the articulated mounting seat, an eccentric wheel is mounted on one end of the connecting rod, and the eccentric wheel is mounted on the rotating shaft;
[0006] It also includes a pre-screening device, which includes a mounting frame and several rocking rods. The mounting frame is installed on the material distribution hopper. The mounting frame is installed with a pre-screening slot through several supporting springs. The first universal joint and the second universal joint are respectively provided at both ends of the rocking rod. The first universal joint is fixedly installed on the pre-screening slot, and the second universal joint is magnetically fixed on the corresponding vibration screening box.
[0007] Preferably, a plurality of universal wheels are mounted on the lower side of the bracket, and a plurality of fixed legs are also mounted on the lower side of the bracket.
[0008] Preferably, the distribution hopper is located above the feed hopper, the lifting point of the grain elevator is located in the feed hopper, and the discharge point of the grain elevator is located on the distribution hopper.
[0009] Preferably, a first support rod is installed in the bracket, one end of the first support rod is hingedly installed on the bracket, and an adjusting rod is hingedly installed on the other end of the first support rod, one end of the adjusting rod passes through the bracket and is movably connected with it, two second support rods are hingedly installed on the first support rod, and the upper end of each second support rod is hingedly installed on the lower side of the vibration screening box.
[0010] Preferably, a plurality of collecting frames are installed on one side of the vibration screening box, and each of the collecting frames is arranged in conjunction with a corresponding vibration screening box.
[0011] Preferably, two partitions are installed in the collection frame, and three discharge openings are opened on the lower side of the collection frame. The two partitions divide the collection frame into three spaces, and the three spaces are arranged one by one opposite to the three discharge openings.
[0012] Preferably, a distribution bin is installed on the upper side of the bracket, and a brown rice discharge trough, a return trough and a rice discharge trough are provided on the distribution bin. The brown rice discharge trough, the return trough and the rice discharge trough are respectively arranged opposite to the corresponding discharge ports, and the discharge end of the return trough is arranged in cooperation with the feed hopper.
[0013] Preferably, the rocking rod is made of multiple sections of non-metallic rods connected end to end by springs, the pre-screening slot is located above the distribution hopper, a pre-screening net is installed in the pre-screening slot, and a dust collection pipe is also installed on the lower side of the pre-screening slot.
[0014] When the utility model is in use, the material to be screened will first be pre-screened by the pre-screening device before entering the vibrating screening box. The pre-screening device can screen out powdered impurities (such as rice flour, dust, smaller rice husks, etc. produced by shelling) in the material to be screened, effectively preventing the powdered material from mixing into the screened material, thereby improving the purity of the screened material.
[0015] When the utility model is in use, the first universal joint at the upper end of the rocking rod is fixed on the pre-screening trough, and the second universal joint at the lower end of the rocking rod is on the vibration screening box. The vibration is transmitted to the pre-screening trough for vibration screening of materials through the rocking rod, which saves the need for a separately installed vibration motor, effectively reduces costs, and improves resource utilization efficiency.
[0016] When in use, the utility model can also adjust the length of the adjustment rod extending out of the bracket, and then can be used for the angle between the first support rod and the horizontal plane, so that the height difference between the highest point and the lowest point of the vibration screening box is increased, and then the gravity screening effect can be effectively adjusted according to different material ratios, effectively improving the applicability. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The drawings that constitute part of this application are used to provide a further understanding of this application. The schematic drawings and their descriptions are used to explain this application and do not constitute an improper limitation on this application. In the drawings:
[0018] Figure 1 This is a basic structural diagram of a rice-rough separator with a pre-screening mechanism according to the present invention.
[0019] Figure 2 This utility model is a rice roughness separator with a pre-screening mechanism Figure 1 main view.
[0020] Figure 3 This is a schematic diagram of the installation positions of the first support rod and the second support rod of a rough grain separator with a pre-screening mechanism of the present invention.
[0021] Figure 4 This is a schematic diagram of the installation position of an eccentric wheel of a rice-rough separator with a pre-screening mechanism according to the present invention.
[0022] Figure 5 This is a schematic diagram of a rice-rough separator with a pre-screening mechanism installed on a distribution hopper according to the present invention.
[0023] Figure 6 This utility model is a rice roughness separator with a pre-screening mechanism Figure 5 Another perspective of the picture.
[0024] Figure 7 This utility model is a rice roughness separator with a pre-screening mechanism Figure 5 main view.
[0025] Figure 8 This is a schematic diagram of the installation position of a pre-screening net of a rough grain separator with a pre-screening mechanism according to the present invention.
[0026] The above drawings include the following reference numerals:
[0027] 101. Bracket; 102. Universal wheel; 103. Fixed support leg; 104. Grain elevator; 105. Feed hopper; 106. Vibrating screening box; 107. Feed hopper; 108. Partition; 109. Feed outlet; 110. Feed bin; 111. Brown rice discharge trough; 112. Return trough; 113. Rice discharge trough; 114. Driving wheel; 115. Rotating shaft; 116. Articulated mounting base; 117 , connecting rod; 118, eccentric wheel; 119, collecting frame; 120, first support rod; 122, second support rod; 123, adjusting rod; 124, driving motor; 200, pre-screening device; 201, mounting frame; 202, pre-screening trough; 203, pre-screening net; 205, dust collection pipe; 206, shaking rod; 207, first universal joint; 208, second universal joint; 209, supporting spring. DETAILED DESCRIPTION
[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0029] like Figures 1-8 As shown, the present embodiment provides a rice-rough separator with a pre-screening mechanism, including a bracket 101, on which two relatively arranged vibration screening boxes 106 are movably mounted, and a plurality of parallel screen plates are installed in the vibration screening box 106. Materials of different weights fall on the screen plates and are screened by vibration. The principle is similar to that of dustpan screening. A feed hopper 107 is mounted on the bracket 101, a distribution hopper 105 is mounted on the bracket 101, and a grain elevator 104 is also mounted on the bracket 101. The grain elevator 104 is located above the feed hopper. Between 107 and the distribution hopper 105, a rotating shaft 115 is installed on one side of the bracket 101, and a driving wheel 114 is installed on one end of the rotating shaft 115. A driving motor 124 is installed on the bracket 101, and the driving motor 124 is connected to the driving wheel 114 through a corresponding pulley and a belt drive. A hinged mounting seat 116 is installed on one side of the vibration screening box 106, and a connecting rod 117 is hingedly installed on the hinged mounting seat 116. An eccentric wheel 118 is installed on one end of the connecting rod 117, and the eccentric wheel 118 is installed on the rotating shaft 115.
[0030] When this embodiment is in use, the driving motor 124 can be used to control the rotation of the driving wheel 114, so that the rotating shaft 115 drives the eccentric wheel 118 to rotate. The eccentric wheel 118 will pull the vibration screening box to shake left and right, and then complete the gravity vibration screening operation of the material through the vibration screening box.
[0031] It also includes a pre-screening device 200, which includes a mounting frame 201 and a plurality of rocking rods 206. The mounting frame 201 is mounted on the distribution hopper 105, and a pre-screening slot 202 is mounted on the mounting frame 201 through a plurality of supporting springs 209. A first universal joint 207 and a second universal joint 208 are respectively provided at both ends of the rocking rod 206. The first universal joint 207 is fixedly mounted on the pre-screening slot 202, and the second universal joint 208 is magnetically fixedly mounted on the corresponding vibration screening box 106. The rocking rod 206 is made of multiple sections of non-metallic rods connected end to end by springs. The pre-screening slot 202 is located above the distribution hopper 105, and a pre-screening net 203 is installed in the pre-screening slot 202. A dust collection pipe 205 is also installed on the lower side of the pre-screening slot 202.
[0032] When this embodiment is in use, the material to be screened will first be pre-screened by the pre-screening device 200 before entering the vibration screening box. The pre-screening device can screen out powdered impurities (such as rice flour, dust, smaller rice husks, etc. produced by shelling) in the material to be screened, effectively preventing the powdered material from mixing into the screened material, thereby improving the purity of the screened material, and can transmit the vibration to the pre-screening slot 202 for vibration screening of the material through the shaking rod 206, saving a separately installed vibration motor, effectively reducing costs, and improving resource utilization efficiency. The dust collection pipe 205 can be directly connected to the negative pressure dust removal chamber for dust removal. The dust removal chamber is not shown in the figure.
[0033] Moreover, the pre-screening device 200 in this embodiment can be directly installed on the current gravity screening machine. During installation, the installation frame 201 is directly fixed in the corresponding distribution hopper 105 and then fixed with bolts to complete the installation operation of the pre-screening device 200 in this embodiment.
[0034] In this embodiment, 46 sieve plates are provided in the vibrating screening box 106 (forming 23 screening layers), the size of the sieve plates is 850-1400, the power of the drive motor 124 is 5.5KW-6 level (vibration), the power of the grain elevator 104 is 1.5KW, the output is 30-35t / h, and the overall length, width and height are 3200*2200*5800 (unit: mm).
[0035] Several universal wheels 102 are installed on the lower side of the bracket 101, and several fixed legs 103 are also installed on the lower side of the bracket 101. The distribution hopper 105 is located above the feed hopper 107, the lifting point of the grain elevator 104 is located in the feed hopper 107, and the discharging point of the grain elevator 104 is located on the distribution hopper 105. A first support rod 120 is installed in the bracket 101, and one end of the first support rod 120 is hingedly installed on the bracket 101, and the other end of the first support rod 120 is hingedly installed with an adjusting rod 123, one end of the adjusting rod 123 passes through the bracket 101 and is movably connected with it. Two second support rods 122 are hingedly installed on the first support rod 120, and the upper end of each second support rod 122 is hingedly installed on the lower side of the vibration screening box 106.
[0036] When in use, this embodiment can also adjust the length of the adjustment rod 123 extending out of the bracket 101, and then can be used for the angle between the first support rod 120 and the horizontal plane, so that the height difference between the highest point and the lowest point of the vibration screening box is increased, and then the gravity screening effect can be effectively adjusted according to different material ratios, effectively improving the applicability.
[0037] In this embodiment, refer to Figure 2 、 Figure 3 and Figure 4 The vibration screening box 106 is installed at an angle. Point A in the figure is the highest point on the upper surface of the vibration screening box 106, and point B is the lowest point on the upper surface of the vibration screening box 106. When the angle between the first support rod 120 and the horizontal plane is adjusted, the height difference between the highest point A and the lowest point B can be changed.
[0038] Several collecting frames 119 are installed on one side of the vibrating screening box 106. Each collecting frame 119 is set in conjunction with the corresponding vibrating screening box 106. Two partitions 108 are installed in the collecting frame 119. Three discharge ports 109 are opened on the lower side of the collecting frame 119. The two partitions 108 divide the collecting frame 119 into three spaces. The three spaces are arranged one by one opposite to the three discharge ports 109. A sub-bin 110 is installed on the upper side of the bracket 101. The sub-bin 110 is provided with a brown rice discharge trough 111, a return trough 112 and a rice discharge trough 113. The brown rice discharge trough 111, the return trough 112 and the rice discharge trough 113 are respectively arranged opposite to the corresponding discharge ports 109, and the discharge end of the return trough 112 is arranged in conjunction with the feed hopper 107.
[0039] It should be noted that, when in use, the material to be screened is put into the feed hopper 107, and the material in the feed hopper 107 is sent to the sub-hopper 105 through the elevator. The sub-hopper 105 is provided with two outlets corresponding to the vibrating screening box. After the material passes through the sub-hopper 105 and enters the vibrating screening box, the driving motor 124 controls the eccentric wheel 118 to rotate, thereby driving the vibrating screening box to shake, and screening the material while shaking. After screening, it is divided into three gears. The lighter gear is discharged through the brown rice discharge trough 111, and the mixture of brown rice and paddy enters the feed hopper 107 again through the waste trough for screening again, and the heavier gear is discharged through the rice discharge trough 113. When the utility model is in use, the material to be screened will first be pre-screened by the pre-screening device 200 before entering the vibrating screening box. The pre-screening device can screen out powdery impurities (such as shelling) in the material to be screened. The rice flour, dust, smaller rice husks, etc. produced are screened out, effectively preventing powdered materials from mixing into the screened materials, thereby improving the purity of the screened materials. When the present invention is in use, the first universal joint 207 at the upper end of the rocking rod 206 is fixed on the pre-screening slot 202, and the second universal joint 208 at the lower end of the rocking rod 206 is on the vibration screening box 106. The vibration is transmitted to the pre-screening slot 202 for vibration screening of materials through the rocking rod 206, which saves the need for a separately installed vibration motor, effectively reduces costs, and improves resource utilization efficiency. When in use, the present invention can also adjust the length of the adjustment rod 123 extending from the bracket 101, and then can be used for the angle between the first support rod 120 and the horizontal plane, so that the height difference between the highest point and the lowest point of the vibration screening box is increased, and then the gravity screening effect can be effectively adjusted according to different material ratios, effectively improving applicability.
[0040] It should be further noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0041] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A rice-rough separator with a pre-screening mechanism, characterized in that: The invention comprises a bracket (101), two vibration screening boxes (106) arranged opposite to each other are movably mounted on the bracket (101), a feed hopper (107) is mounted on the bracket (101), a distribution hopper (105) is mounted on the bracket (101), a grain elevator (104) is mounted on the bracket (101), and the grain elevator (104) is located between the feed hopper (107) and the distribution hopper (105). A rotating shaft (115) is mounted on one side of the bracket (101), and the rotating shaft (115) is mounted on the bracket (101). 5) is cooperatively mounted on one end thereof with a driving wheel (114), a driving motor (124) is cooperatively mounted on the bracket (101), the driving motor (124) is connected to the driving wheel (114) through a corresponding pulley and a belt drive, a hinged mounting seat (116) is cooperatively mounted on one side of the vibration screening box (106), a connecting rod (117) is hingedly mounted on the hinged mounting seat (116), an eccentric wheel (118) is cooperatively mounted on one end of the connecting rod (117), and the eccentric wheel (118) is cooperatively mounted on the rotating shaft (115); The invention also includes a pre-screening device (200), the pre-screening device (200) including a mounting frame (201) and a plurality of rocking rods (206), the mounting frame (201) being mounted on the material distribution hopper (105), the mounting frame (201) being mounted on the pre-screening slot (202) via a plurality of supporting springs (209), a first universal joint (207) and a second universal joint (208) being respectively provided at both ends of the rocking rod (206), the first universal joint (207) being fixedly mounted on the pre-screening slot (202), and the second universal joint (208) being magnetically fixedly mounted on the corresponding vibration screening box (106).
2. The rice-rough separator with a pre-screening mechanism according to claim 1, characterized in that: A plurality of universal wheels (102) are mounted on the lower side of the bracket (101), and a plurality of fixed legs (103) are mounted on the lower side of the bracket (101).
3. The rice-rough separator with a pre-screening mechanism according to claim 1, characterized in that: The distribution hopper (105) is located above the feed hopper (107), the material lifting point of the grain elevator (104) is located in the feed hopper (107), and the material discharge point of the grain elevator (104) is located on the distribution hopper (105).
4. The rice-rough separator with a pre-screening mechanism according to claim 1, characterized in that: A first support rod (120) is installed in the bracket (101), one end of the first support rod (120) is hingedly installed on the bracket (101), and an adjustment rod (123) is hingedly installed on the other end of the first support rod (120), one end of the adjustment rod (123) passes through the bracket (101) and is movably connected thereto, and two second support rods (122) are hingedly installed on the first support rod (120), and the upper end of each second support rod (122) is hingedly installed on the lower side of the vibration screening box (106).
5. The rice-rough separator with a pre-screening mechanism according to claim 1, characterized in that: A plurality of collecting frames (119) are mounted on one side of the vibration screening box (106), and each collecting frame (119) is arranged in conjunction with a corresponding vibration screening box (106).
6. The rice-rough separator with a pre-screening mechanism according to claim 5, characterized in that: Two partitions (108) are installed in the collection frame (119), and three discharge openings (109) are opened on the lower side of the collection frame (119). The two partitions (108) divide the collection frame (119) into three spaces, and the three spaces are arranged one by one opposite to the three discharge openings (109).
7. The rice-rough separator with a pre-screening mechanism according to claim 6, characterized in that: A feed bin (110) is mounted on the upper side of the bracket (101). A brown rice discharge trough (111), a return trough (112), and a rice discharge trough (113) are provided on the feed bin (110). The brown rice discharge trough (111), the return trough (112), and the rice discharge trough (113) are respectively arranged opposite to corresponding feed ports (109). The discharge end of the return trough (112) is arranged in cooperation with the feed hopper (107).
8. The rice-rough separator with a pre-screening mechanism according to claim 1, characterized in that: The rocking rod (206) is made of multiple sections of non-metallic rods connected end to end by springs. The pre-screening slot (202) is located above the material distribution hopper (105). A pre-screening net (203) is installed in the pre-screening slot (202). A dust collection pipe (205) is also installed on the lower side of the pre-screening slot (202).