Wheat impurity removal device

Abstract

The utility model discloses a wheat impurity removing device, which relates to the technical field of wheat impurity removing devices and comprises a grain impurity removing machine and a linkage discharging assembly, the grain impurity removing machine is composed of a machine frame body, a vibrating screen box, a rotating swing arm, a discharging hopper, a fan shell and a fan, and the linkage discharging assembly utilizes rotating force of the fan to achieve intermittent discharging of the discharging hopper. Meanwhile, the wheat throwing operation is realized. By arranging the linkage discharging assembly, intermittent efficiency of wheat can be achieved, the effect of simulating manual throwing of people can be achieved, the fallen wheat is thrown out, the wheat is more dispersed, impurities can be better separated from the wheat, meanwhile, the wheat falls off in a parabola path, the contact time of the wheat and air blowing in the air is longer, and the wheat is more uniform. In this way, more impurities can be blown out and taken away by blowing, the primary impurity removal effect is further improved, the impurities falling onto the upper-layer screen are kept in a small-amount state, and then follow-up smooth discharging is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to wheat impurity removal device technical field, specifically a kind of wheat impurity removal device. BACKGROUND

[0002] After harvesting, the wheat inevitably contains straw, stone and other impurities, so before the subsequent processing or storage of the wheat, the wheat needs to be screened to remove impurities, and the grain impurity removal machine (also known as a grain screening machine) is one of the commonly used devices for removing impurities from wheat.

[0003] The grain impurity removal machine has a two-layer screen, and the light-weight impurities or wheat straw are directly sucked away by a fan at the inlet, and the large impurities are removed by the initial screening of the upper layer screen, and the good grains (seeds) directly fall onto the lower layer screen, and the small impurities, small stones and defective grains (seeds) in the grains (seeds) are directly leaked, and the perfect grains (seeds) are screened out from the outlet.

[0004] However, in actual use, the wheat continuously falls from the inlet, and the falling trajectory is vertically downward, so the wheat has poor dispersion and short contact time with the flowing air, and many impurities or wheat straw will fall onto the upper layer screen along with the wheat, which results in weak preliminary impurity removal effect of the fan on the wheat, and the many impurities or wheat straw falling onto the upper layer screen will interfere with the screening of the upper layer screen, especially when a large amount of wheat is screened, many impurities or wheat straw will be trapped at the outlet of the upper layer screen, which will cause blockage and cannot be timely discharged. SUMMARY

[0005] The utility model aims at solving the problems in the above background, and provides a wheat impurity removal device.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a wheat impurity removal device, which comprises a grain impurity removal machine composed of a rack main body, a vibrating screen box, a rotating swing arm, a feeding hopper, a fan housing and a fan, the vibrating screen box is distributed on the inner side of the rack main body and is rotatably connected with the rack main body through the rotating swing arm, the feeding hopper and the fan housing are horizontally distributed and fixed on the inner side of the top of the rack main body, the air outlet of the fan housing is directed to the bottom of the feeding hopper, the rotating shaft of the fan is rotatably connected to the inner side of the fan housing and protrudes from the inner side of the fan housing, one side of the rotating shaft of the fan is provided with a linkage feeding assembly below the feeding hopper, and the linkage feeding assembly realizes intermittent feeding of the feeding hopper by using the rotating force of the fan, and simultaneously realizes the throwing and spreading operation of the wheat.

[0007] The linkage feeding assembly comprises an eccentric column, a second transmission arm, a second Z-shaped rotating arm and a throwing and receiving plate.

[0008] The eccentric column is fixed at an eccentric position on one side of the fan rotating shaft, the center rotating rod of the second Z-shaped rotating arm is rotatably installed on the rack main body through a bearing base and is distributed at one end of the lower hopper bottom, the throwing and receiving plate is fixed on the outside of the center rotating rod of the second Z-shaped rotating arm and is located directly below the lower hopper discharge port;

[0009] The second transmission arm is rotatably connected at both ends to the eccentric column and the eccentric rotating rod of the second Z-shaped rotating arm, the circumferential rotating force of the eccentric column is transmitted to the second Z-shaped rotating arm through the second transmission arm to realize the reciprocating rotation of the second Z-shaped rotating arm, the intermittent discharge of the lower hopper discharge port is realized through the reciprocating swing of the throwing and receiving plate, and the wheat is thrown and sprayed at the same time.

[0010] The rack main body rear end is provided with a collecting assembly for intercepting and collecting the blown impurities.

[0011] As a further scheme of the utility model: the grain impurity removing machine further includes a double-groove belt pulley, a driving motor, a driving single-groove belt pulley, a driven single-groove belt pulley, a first Z-shaped rotating arm, a first transmission arm, a first transmission arm;

[0012] The center rotating rod of the first Z-shaped rotating arm is rotatably installed on the rear end of the rack main body through a bearing base, one end of the first transmission arm is rotatably connected to the deflection rotating rod of the first Z-shaped rotating arm, and the other end of the first transmission arm is rotatably connected to one end of the vibrating screen box; the vibration operation of the vibrating screen box is realized through the transmission of the first transmission arm when the first Z-shaped rotating arm rotates.

[0013] The driving motor is installed at the bottom of the rack main body, the driving single-groove belt pulley is fixed to the output end of the driving motor, the double-groove belt pulley is fixed to one side of the fan rotating shaft away from the eccentric column, the driven single-groove belt pulley is fixed to one side of the center rotating rod of the first Z-shaped rotating arm, and the double-groove belt pulley is rotatably connected to the driving single-groove belt pulley and the driven single-groove belt pulley through two belts.

[0014] The driving motor is used to provide driving force for the rotation of the fan and the belt.

[0015] As a further scheme of the utility model: the collecting assembly includes an inverted V-shaped bottom plate, an arc-shaped grid plate, a side sealing plate and a side material blocking seat.

[0016] The inverted V-shaped bottom plate is fixed to the inner side of the rear end of the rack main body and is distributed above the vibrating screen box, the arc-shaped grid plate is fixed between the rear end of the inverted V-shaped bottom plate and the top of the rear end of the rack main body, and the side sealing plate is fixed to one side of the inverted V-shaped bottom plate and the arc-shaped grid plate; the area formed by the inverted V-shaped bottom plate, the arc-shaped grid plate and the side sealing plate is used for intercepting the blown impurities.

[0017] The side material blocking seat is symmetrically fixed on both sides of the frame body and is located on both sides of the front end of the inverted V-shaped bottom plate, and is used for intercepting the wheat falling on the inverted V-shaped bottom plate to avoid the wheat falling out.

[0018] As a further scheme of the utility model, the front end and the rear end of the inverted V-shaped bottom plate are in an inclined downward state, and the front end of the inverted V-shaped bottom plate is distributed below the material throwing and receiving plate.

[0019] As a further scheme of the utility model, the bearing base connected with the second Z-shaped rotating arm center rotating rod is installed on the top of the side material blocking seat, the rear end of the inverted V-shaped bottom plate is distributed above the first Z-shaped rotating arm and the first transmission arm, and the side sealing plate is located on the side of the frame body close to the double-groove belt pulley, the driving motor and the driven single-groove belt pulley.

[0020] Compared with the prior art, the utility model has the beneficial effects that:

[0021] By setting the linkage discharging assembly, the intermittent efficiency of the wheat can be realized, and the effect of simulating manual material throwing can be achieved, the falling wheat is thrown out, the wheat is more dispersed, the impurities can be better separated from the wheat, meanwhile, the wheat falls in a parabolic trajectory, and the contact time with the air blowing is longer in the air, so that more impurities can be blown out by the air blowing, the effect of the initial impurity removal is further improved, thereby the impurities falling on the upper layer sieve are kept in a small amount, and then the subsequent smooth discharging is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0022] Fig. 1 It is a structural schematic view of the utility model;

[0023] Fig. 2 It is a second view structural schematic view of the utility model;

[0024] Fig. 3 It is a third view structural schematic view of the utility model;

[0025] Fig. 4 It is a structural distribution view of the linkage discharging assembly and the collecting assembly of the utility model;

[0026] Fig. 5 It is a structural split view of the linkage discharging assembly of the utility model.

[0027] In the figure: 1, grain impurity removing machine; 101, machine frame main body; 102, vibrating screen box; 103, rotating swing arm; 104, lower hopper; 105, fan shell; 106, fan; 107, double-groove pulley; 108, driving motor; 109, driving single-groove pulley; 110, driven single-groove pulley; 111, belt; 112, first Z-shaped rotating arm; 113, first transmission arm; 2, linkage lower discharging assembly; 201, eccentric column; 202, second transmission arm; 203, second Z-shaped rotating arm; 204, material throwing and receiving plate; 3, collecting assembly; 301, inverted V-shaped bottom plate; 302, arc-shaped grid plate; 303, side sealing plate; 304, side material blocking seat. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0029] Please refer to Figs. 1-5 In the embodiments of the present application, a wheat impurity removing device includes a grain impurity removing machine 1 composed of a machine frame main body 101, a vibrating screen box 102, a rotating swing arm 103, a lower hopper 104, a fan shell 105, and a fan 106. The vibrating screen box 102 is distributed on the inner side of the machine frame main body 101 and is rotationally connected with the machine frame main body 101 through the rotating swing arm 103. The lower hopper 104 and the fan shell 105 are horizontally distributed and fixed on the inner side of the top of the machine frame main body 101. The air outlet of the fan shell 105 faces the bottom end below the lower hopper 104. The fan 106 is rotationally connected on the inner side of the fan shell 105, and the rotating shaft of the fan 106 protrudes from the inside of the fan shell 105 to the outside. The side of the rotating shaft of the fan 106 is provided with a linkage lower discharging assembly 2 below the lower hopper 104. The linkage lower discharging assembly 2 realizes intermittent discharging of the lower hopper 104 by using the rotating force of the fan 106, and simultaneously realizes the throwing and spreading operation of the wheat.

[0030] The linkage lower discharging assembly 2 includes an eccentric column 201, a second transmission arm 202, a second Z-shaped rotating arm 203, and a material throwing and receiving plate 204.

[0031] The eccentric column 201 is fixed at the eccentric position on the side of the rotating shaft of the fan 106. The central rotating rod of the second Z-shaped rotating arm 203 is rotationally installed on the machine frame main body 101 through a bearing base and is distributed at one end of the bottom of the lower hopper 104. The material throwing and receiving plate 204 is fixed on the outer side of the central rotating rod of the second Z-shaped rotating arm 203 and is located directly below the discharging port of the lower hopper 104.

[0032] The second transmission arm 202 is rotatably connected to the eccentric column 201 and the eccentric rotating rod of the second Z-shaped rotating arm 203 at both ends, and the circumferential rotating force of the eccentric column 201 is transmitted to the second Z-shaped rotating arm 203 through the second transmission arm 202 to realize the reciprocating rotation of the second Z-shaped rotating arm 203, and the intermittent discharge of the discharge port of the lower discharge hopper 104 is realized through the reciprocating swing of the material throwing and receiving plate 204, and the wheat is thrown and sprayed;

[0033] The rear end of the rack body 101 is provided with a collection assembly 3 for intercepting and collecting the blown impurities;

[0034] The grain impurity removing machine 1 further comprises a double-groove belt pulley 107, a driving motor 108, a driving single-groove belt pulley 109, a driven single-groove belt pulley 110, a first Z-shaped rotating arm 112, a first transmission arm 113, and the first transmission arm 113.

[0035] The central rotating rod of the first Z-shaped rotating arm 112 is rotatably installed at the rear end of the rack body 101 through a bearing base, one end of the first transmission arm 113 is rotatably connected to the deflection rotating rod of the first Z-shaped rotating arm 112, and the other end of the first transmission arm 113 is rotatably connected to one end of the vibrating screen box 102.

[0036] The driving motor 108 is installed at the bottom of the rack body 101, the driving single-groove belt pulley 109 is fixed to the output end of the driving motor 108, the double-groove belt pulley 107 is fixed to the side of the rotating shaft of the fan 106 away from the eccentric column 201, the driven single-groove belt pulley 110 is fixed to one side of the central rotating rod of the first Z-shaped rotating arm 112, and the double-groove belt pulley 107 is rotatably connected to the driving single-groove belt pulley 109 and the driven single-groove belt pulley 110 through two belts 111.

[0037] The driving motor 108 is used to provide driving force for the rotation of the fan 106 and the belt 111.

[0038] The collection assembly 3 comprises an inverted V-shaped bottom plate 301, an arc-shaped grid plate 302, a side sealing plate 303, and a side material blocking seat 304.

[0039] The inverted V-shaped bottom plate 301 is fixed to the inner side of the rear end of the rack body 101 and is distributed above the vibrating screen box 102, the arc-shaped grid plate 302 is fixed between the rear end of the inverted V-shaped bottom plate 301 and the top of the rear end of the rack body 101, and the side sealing plate 303 is fixed to one side of the inverted V-shaped bottom plate 301 and the arc-shaped grid plate 302.

[0040] The side material blocking seats 304 are symmetrically fixed on both sides of the frame body 101 and located at both sides of the front end of the inverted V-shaped bottom plate 301, and are used for intercepting the wheat falling on the inverted V-shaped bottom plate 301 to avoid the wheat from falling out.

[0041] In the embodiment, it should be noted that the upper layer screen and the lower layer screen are sequentially installed from top to bottom in the inside of the vibrating screen box 102, and the screen hole diameters of the upper layer screen and the lower layer screen are sequentially reduced. The vibrating screen box 102 is provided with three discharge ports at the front end. The structure is a conventional structure of the prior art. The structure of the fan 106 in the fan housing 105 is also a common structure of the prior art. Therefore, the structure will not be described here.

[0042] When the wheat is decontaminated and screened, the working principle is as follows:

[0043] The driving motor 108 is started to drive the fan 106 to rotate and operate through the driving single-groove pulley 109, the belt 111 and the double-groove pulley 107. The double-groove pulley 107 drives the first Z-shaped rotating arm 111 to rotate through another belt 111 and the driven single-groove pulley 110. The first Z-shaped rotating arm 111 drives the vibrating screen 102 to vibrate and operate through the first transmission arm 113.

[0044] At this time, the wheat can be poured into the inside of the lower hopper 104. The wheat falls downward through the discharge port of the lower hopper 104. The fan 106 rotates to generate wind power and blows to the lower side of the discharge port of the lower hopper 104 through the outlet of the fan housing 105. In this way, the wind power can contact the falling wheat to blow away the light impurities mixed in the wheat, so as to realize preliminary decontamination. Then, the wheat falls onto the upper layer screen in the vibrating screen box 102. The upper layer screen intercepts the large impurities to realize secondary decontamination. The wheat directly falls onto the lower layer screen through the screen hole of the upper layer screen. The small particle impurities continue to fall through the screen hole of the lower layer screen to realize third decontamination. Finally, the large impurities, the wheat and the small particle impurities are discharged through the three discharge ports, respectively.

[0045] During the above operation, when the fan 106 rotates, the eccentric column 201 rotates synchronously, the eccentric column 201 drives the second Z-shaped rotating arm 203 to reciprocating rotate through the second transmission arm 202, and the second Z-shaped rotating arm 203 drives the throwing and receiving plate 204 to swing outward. When the throwing and receiving plate 204 rotates to the highest position, the throwing and receiving plate 204 is attached to the lower surface of the hopper 104 to block the hopper 104. When the throwing and receiving plate 204 rotates downward, the hopper 104 is unblocked. Thus, intermittent feeding can be realized, and in the process of reciprocating swing of the throwing and receiving plate 204, the effect of simulating manual throwing can be achieved. The falling wheat is thrown out, which not only makes the wheat more dispersed, but also makes the impurities and the wheat better separated. At the same time, the wheat falls along a parabolic trajectory and contacts the air for a longer time in the air, so that more impurities are blown out by the air, further improving the effect of primary impurity removal, so that the impurities falling on the upper sieve remain in a small amount, thereby facilitating subsequent smooth discharge, avoiding blockage at the discharge port of the upper sieve due to too much impurities, and making the overall impurity removal operation more stable and smooth.

[0046] It should be noted that the linkage feeding assembly 2 does not require additional power and can be modified and produced on the basis of the existing grain impurity remover, which is convenient for production and promotion.

[0047] The blown impurities are intercepted by the arc-shaped grid plate 302 and fall onto the inverted V-shaped bottom plate 301, which facilitates subsequent cleaning and prevents the impurities from scattering everywhere.

[0048] Please refer to Figs. 1-4 , the front and rear ends of the inverted V-shaped bottom plate 301 are inclined downward, and the front end of the inverted V-shaped bottom plate 301 is distributed below the throwing and receiving plate 204.

[0049] The bearing base connected to the center rotating rod of the second Z-shaped rotating arm 203 is installed on the top of the side material blocking seat 304, the rear end of the inverted V-shaped bottom plate 301 is distributed above the first Z-shaped rotating arm 112 and the first transmission arm 113, and the side blocking plate 303 is located on one side of the rack main body 101 close to the double-groove pulley 107, the driving motor 108 and the driven single-groove pulley 110.

[0050] In this embodiment, the front end of the inverted V-shaped bottom plate 301 is inclined to guide the falling and thrown wheat to slide onto the vibrating sieve box 102, and the rear end of the inverted V-shaped bottom plate 301 is inclined to guide the impurities to slide close to the arc-shaped grid plate 302 for subsequent cleaning;

[0051] In addition, the inverted V-shaped bottom plate 301 and the side sealing plate 303 can avoid the contact between impurities and the transmission operation area of the double-groove belt wheel 107, the driving motor 108 and the driven single-groove belt wheel 110, so that the operation of the equipment is more stable, and the subsequent cleaning workload is reduced.

[0052] The above merely provides the preferred embodiments of the present application, and the protection scope of the present application is not limited to this. Any skilled person in the art, according to the technical scheme and the inventive concept of the present application, can make equivalent replacement or change within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A wheat impurity removal device, comprising a grain impurity removal machine (1) composed of a rack body (101), a vibrating sieve box (102), a rotating swing arm (103), a lower hopper (104), a fan housing (105), and a fan (106), wherein the vibrating sieve box (102) is distributed on the inner side of the rack body (101) and is rotationally connected with the rack body (101) through the rotating swing arm (103), the lower hopper (104) and the fan housing (105) are horizontally distributed and fixed on the inner side of the top of the rack body (101), the air outlet of the fan housing (105) is directed below the bottom end of the lower hopper (104), and the fan (106) is rotationally connected on the inner side of the fan housing (105) and the rotating shaft of the fan (106) protrudes out of the fan housing (105), characterized in that, The rotation shaft side of the fan (106) is provided with a linkage discharging assembly (2) below the lower hopper (104), the linkage discharging assembly (2) realizes intermittent discharging of the lower hopper (104) by using the rotation force of the fan (106), and meanwhile realizes the throwing operation of the wheat; The linkage discharging assembly (2) comprises an eccentric column (201), a second transmission arm (202), a second Z-shaped rotating arm (203) and a throwing and receiving plate (204); The eccentric column (201) is fixed at an eccentric position on the rotation shaft side of the fan (106), the center rotating rod of the second Z-shaped rotating arm (203) is rotatably installed on the rack main body (101) and is distributed at one end of the bottom of the lower hopper (104), and the throwing and receiving plate (204) is fixed outside the center rotating rod of the second Z-shaped rotating arm (203) and is located directly below the discharging port of the lower hopper (104); The two ends of the second transmission arm (202) are rotatably connected to the eccentric column (201) and the eccentric rotating rod of the second Z-shaped rotating arm (203), respectively, the second transmission arm (202) transmits the circumferential rotation force of the eccentric column (201) to the second Z-shaped rotating arm (203) to realize the reciprocating rotation of the second Z-shaped rotating arm (203), and the reciprocating swing of the throwing and receiving plate (204) is used to realize the intermittent discharging of the discharging port of the lower hopper (104), and at the same time, the throwing operation of the wheat is realized; The rear end of the rack main body (101) is provided with a collecting assembly (3), and the collecting assembly (3) is used for intercepting and collecting the blown impurities.

2. The wheat impurity removing device according to claim 1, characterized in that, The grain impurity removing machine (1) further comprises a double-groove belt pulley (107), a driving motor (108), a driving single-groove belt pulley (109), a driven single-groove belt pulley (110), a first Z-shaped rotating arm (112) and a first transmission arm (113); The center rotating rod of the first Z-shaped rotating arm (112) is rotatably installed at the rear end of the rack main body (101), one end of the first transmission arm (113) is rotatably connected to the deflection rotating rod of the first Z-shaped rotating arm (112), and the other end of the first transmission arm (113) is rotatably connected to one end of the vibrating screen box (102), and the first Z-shaped rotating arm (112) rotates to realize the vibrating operation of the vibrating screen box (102) through the transmission of the first transmission arm (113); The driving motor (108) is installed at the bottom of the rack main body (101), the driving single-groove belt pulley (109) is fixed to the output end of the driving motor (108), the double-groove belt pulley (107) is fixed to the side of the rotation shaft of the fan (106) away from the eccentric column (201), the driven single-groove belt pulley (110) is fixed to one side of the center rotating rod of the first Z-shaped rotating arm (112), and the double-groove belt pulley (107) is rotatably connected to the driving single-groove belt pulley (109) and the driven single-groove belt pulley (110) through two belts (111), respectively. The driving motor (108) is used to provide driving force for the rotation of the fan (106) and the belt (111).

3. The wheat impurity removing device according to claim 2, characterized in that, The collecting assembly (3) comprises an inverted V-shaped bottom plate (301), an arc-shaped grid plate (302), a side sealing plate (303), and a side material blocking seat (304). The inverted V-shaped bottom plate (301) is fixed to the inner side of the rear end of the rack main body (101) and is distributed above the vibrating screen box (102), the arc-shaped grid plate (302) is fixed between the rear end of the inverted V-shaped bottom plate (301) and the top of the rear end of the rack main body (101), and the side sealing plate (303) is fixed to one side of the inverted V-shaped bottom plate (301) and the arc-shaped grid plate (302), and the area formed by the inverted V-shaped bottom plate (301), the arc-shaped grid plate (302), and the side sealing plate (303) is used for intercepting the blown impurities. The side material blocking seat (304) is symmetrically fixed to the two sides of the rack main body (101) and is located at the front end of the inverted V-shaped bottom plate (301), and is used for intercepting the falling wheat on the inverted V-shaped bottom plate (301) to avoid the falling of the wheat.

4. The wheat impurity removing device according to claim 3, characterized in that, The front and rear ends of the inverted V-shaped bottom plate (301) are in an inclined downward state, and the front end of the inverted V-shaped bottom plate (301) is distributed below the material throwing and receiving plate (204).

5. The wheat impurity removing device according to claim 3, characterized in that, The bearing base connected with the central rotating rod of the second Z-shaped rotating arm (203) is installed on the top of the side material blocking seat (304), the rear end of the inverted V-shaped bottom plate (301) is distributed above the first Z-shaped rotating arm (112) and the first transmission arm (113), and the side sealing plate (303) is located on one side of the rack main body (101) close to the double-groove belt pulley (107), the driving motor (108), and the driven single-groove belt pulley (110).

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