Double-roller vibration combined cleaning sieve

Abstract

The utility model provides a double-roller vibration combined cleaning sieve, and relates to the technical field of grain processing. The double-roller vibration combined cleaning sieve comprises a mounting frame, a first motor, a rotating shaft, a roller, a driver, an outer roller, an inner roller, a placement frame, a feeding groove, a lower fixing frame, an upper fixing frame, a guide rod, a lead screw, a second motor, a material receiving groove, a fixing seat, a through hole, a threaded hole, a guide rail, a baffle, a clamping groove, a movable plate, a fixing plate, a fixing rod and a stop block, according to the device, grains can be thrown into the inner roller through the material receiving groove, so that the grains can be prevented from moving too far in the inner roller due to too large throwing force, it is ensured that impurities in the grains can be screened by the inner roller and the outer roller within sufficient time, meanwhile, the operation difficulty of grain throwing is reduced, and the grain throwing efficiency is improved. And through arrangement of a material guide cylinder, the feeding position of the grains can be further restrained, so that the screening effect of the grains is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of grain processing, in particular to a double-drum vibration combined cleaning screen. Background Art

[0002] The drum cleaning screen can be used to separate grains from impurities such as grain husks. When the existing cleaning screen is in use, the height of the feed port is generally high. When feeding into the drum, the force is not well controlled and the grains can easily be fed to a position close to the lower end of the drum, thereby reducing the processing time of the grains in the drum and affecting the screening effect of the grains. Utility Model Content

[0003] The purpose of the utility model is to provide a double-drum vibrating combined cleaning screen, aiming to solve the problems mentioned in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: the double-drum vibration combination cleaning screen comprises a mounting frame, a first motor is arranged on the mounting frame, rotating shafts are arranged on both sides of the upper surface of the mounting frame, rollers are arranged on both ends of the rotating shafts, transmission devices are arranged on both sides of the first motor, and the first motor drives the rotating shaft to rotate through the transmission, outer drums are placed on the two rotating shafts, the outer drums are arranged obliquely, an inner drum is installed inside the outer drum, a placing frame is arranged on one side of the mounting frame, a feeding trough is arranged on the placing frame, a feeding end of the feeding trough extends into the interior of the inner drum, lower fixing frames are arranged on both sides of the mounting frame, upper fixing frames are arranged on both sides of the feeding trough, and guides are symmetrically arranged between the upper fixing frame and the lower fixing frame. The cam is provided with a second motor for driving the screw rod to rotate, and the cam is provided with a second motor for driving the screw rod to rotate. The cam also includes a material receiving groove, and the outer surface of the material receiving groove is provided with a fixing seat which cooperates with the guide rod and the screw rod. A through hole is provided on the fixing seat which cooperates with the guide rod, and a threaded hole is provided on the fixing seat which cooperates with the screw rod. The material receiving groove has an opening at one end close to the mounting bracket, and the outer surface of the material receiving groove is symmetrically provided with guide rails, and also includes a baffle, and both ends of the baffle are provided with card grooves which are slidably connected to the guide rails. The bottom of the baffle is provided with a movable plate, and the bottom of the guide rail is provided with a fixed plate, and the bottom of the movable plate is provided with a fixed rod, and a block is provided at the bottom end of the fixed rod, and a spring is sleeved on the fixed rod, and the spring is located between the movable plate and the fixed plate.

[0005] Preferably, the outer surfaces of the outer drum and the inner drum are both provided with meshes, and the aperture of the meshes on the inner drum is larger than the aperture of the meshes on the outer drum.

[0006] Preferably, the length of the outer drum is the same as that of the inner drum, and both ends of the outer drum and the inner drum are aligned with each other.

[0007] Preferably, a material guide cylinder is provided at the lower end of the feed chute.

[0008] Preferably, the inclination angle of the feeding trough is equal to the inclination angle of the receiving trough.

[0009] The beneficial effects of the utility model are:

[0010] The device can put grain into the inner drum through the material receiving trough, thereby preventing the grain from moving too far in the inner drum due to excessive putting force, ensuring that impurities in the grain can be screened by the inner and outer drums in a relatively sufficient time, while reducing the operational difficulty of grain putting in, and through the provided material guide cylinder, the putting position of the grain can be further constrained to ensure the screening effect of the grain. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of a specific embodiment of the utility model.

[0012] Figure 2 It is a top view of the outer drum of a specific embodiment of the utility model.

[0013] Figure 3 It is a schematic diagram of the installation of the outer drum and the inner drum of the specific embodiment of the utility model.

[0014] Figure 4 It is a structural schematic diagram of a material receiving trough in a specific embodiment of the utility model.

[0015] In the figure: 1. mounting frame; 2. first motor; 3. rotating shaft; 4. roller; 5. transmission device; 6. outer roller; 7. inner roller; 8. placement frame; 9. feeding trough; 10. lower fixing frame; 11. upper fixing frame; 12. guide rod; 13. screw rod; 14. second motor; 15. receiving trough; 16. fixing seat; 17. guide rail; 18. baffle; 19. movable plate; 20. fixing plate; 21. fixing rod; 22. block; 23. spring; 24. material guide barrel. DETAILED DESCRIPTION

[0016] The specific implementation of the utility model is further described below in conjunction with the accompanying drawings.

[0017] like Figure 1-4As shown, a double-drum vibration combined cleaning screen comprises a mounting frame 1, on which a first motor 2 is arranged, on both sides of the upper surface of the mounting frame 1 are respectively arranged shafts 3, at both ends of the shafts 3 are respectively arranged rollers 4, on both sides of the first motor 2 are respectively arranged transmission devices 5, the first motor 2 drives the shafts 3 to rotate through the transmission devices 5, outer rollers 6 are placed on the two shafts 3, the outer rollers 6 are inclined, and inner rollers 7 are installed inside the outer rollers 6, a placing frame 8 is arranged on one side of the mounting frame 1, on which a feeding trough 9 is arranged, and the unloading end of the feeding trough 9 extends into the interior of the inner roller 7, lower fixing frames 10 are respectively arranged on both sides of the mounting frame 1, upper fixing frames 11 are arranged on both sides of the feeding trough 9, guide rods 12 are symmetrically arranged between the upper fixing frame 11 and the lower fixing frame 10, and a screw rod 13 is also arranged between the upper fixing frame 11 and the lower fixing frame 10, and the lower fixing frame A second motor 14 for driving the screw rod 13 to rotate is provided at the bottom of 10, and also includes a material receiving trough 15. The outer surface of the material receiving trough 15 is provided with a fixing seat 16 that matches the guide rod 12 and the screw rod 13. A through hole is provided on the fixing seat 16 that matches the guide rod 12, and a threaded hole is provided on the fixing seat 16 that matches the screw rod 13. The material receiving trough 15 has an opening at one end close to the mounting frame 1, and the outer surface of the material receiving trough 15 is symmetrically provided with guide rails 17, and also includes a baffle 2218, and both ends of the baffle 2218 are provided with card grooves that are slidably connected to the guide rails 17, and the bottom of the baffle 2218 is provided with a movable plate 19, and the bottom of the guide rail 17 is provided with a fixed plate 20, and the bottom of the movable plate 19 is provided with a fixed rod 21, and the bottom end of the fixed rod 21 is provided with a block, and the fixed rod 21 is sleeved with a spring 23, and the spring 23 is located between the movable plate 19 and the fixed plate 20.

[0018] The first motor 2 controls the rotation of the two shafts 3 at the same time through the transmission devices 5 on both sides. The interior of the transmission device 5 is composed of two mutually meshing bevel gears and a roller shaft. The roller 4 rotates synchronously with the shaft 3. The rotation directions of the two shafts 3 are the same. Outer retaining rings are respectively provided at both ends of the outer surface of the outer drum 6. The two outer retaining rings are located between the two rollers 4 on the same shaft 3 to prevent the outer drum 6 from slipping on the shaft 3. The outer drum 6 and the inner drum 7 are fixed together by steel plate welding or bolt connection. When the outer drum 6 rotates, the inner drum 7 is driven to rotate. The outer surfaces of the outer drum 6 and the inner drum 7 are both provided with meshes. The aperture of the mesh on the drum 7 is larger than the aperture of the mesh on the outer drum 6. The inner drum 7 can separate impurities with larger particle sizes from the grain, and the separated grain can be separated again by the outer drum 6 to reduce the screening pressure of a single drum. The length of the outer drum 6 is the same as that of the inner drum 7. Both ends of the outer drum 6 and the inner drum 7 are aligned with each other. The impurities separated by the outer drum 6 and the impurities screened by the inner drum 7 are discharged to the outside through their respective lower ends. The impurities screened in the inner drum 7 will not enter the outer drum 6. At the same time, a conveyor belt can be set under the outer drum 6 to transport the grain after the second screening.

[0019] Since it is necessary to set up enough space under the outer drum 6 to facilitate the installation of the conveyor belt and the transfer of grain, the height of the feed chute 9 is relatively high. When it is necessary to put grain into the inner drum 7 through the feed chute 9, the grain is first loaded into the receiving chute 15. After a proper amount of grain is loaded into the receiving chute 15, the second motor 14 is controlled to drive the screw rod 13 to rotate. Through the cooperation of the screw rod 13 and the fixed seat 16, and the cooperation of the guide rod 12 and the fixed seat 16, the receiving chute 15 can be controlled to move upward. During the upward movement of the receiving chute 15, the upper end of the baffle 2218 will contact the lower surface of the feed chute 9. The baffle 2218 is unable to move further as the receiving trough 15 continues to move upward, and the Shudie baffle 2218 squeezes the spring 23 on the fixed rod 21 through the movable plate 19. The inclination angle of the feeding trough 9 is equal to the inclination angle of the receiving trough 15. When the lower surface of the receiving trough 15 is in the same plane as the lower surface of the feeding trough 9, the second motor 14 stops working, and before the second motor 14 stops working, the food in the receiving trough 15 can enter the feeding trough 9 under the action of gravity. The lower end of the feeding trough 9 is provided with a material guide cylinder 24, and is transported to the inside of the inner drum 7 through the material guide cylinder 24.

[0020] After the grain is put into the trough 15, the second motor 14 is controlled to rotate in reverse to drive the trough 15 to move downward. Under the action of the spring 23, the baffle 2218 is pushed to close one end of the trough 15, so as to facilitate the feeding of grain into the trough 15.

[0021] When the stopper abuts against the fixed plate 20 , the upper end surface of the receiving trough 15 and the upper end surface of the baffle 2218 are in the same plane.

[0022] The device can put grain into the inner drum 7 through the receiving trough 15, thereby preventing the grain from moving too far in the inner drum 7 due to excessive putting force, ensuring that impurities in the grain can be screened by the inner drum 7 and the outer drum 6 in a relatively sufficient time, while reducing the difficulty of grain putting in operation, and by providing a material guide cylinder 24, the putting position of the grain can be further constrained to ensure the screening effect of the grain.

[0023] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A double-drum vibrating combined cleaning screen, characterized in that: The invention comprises a mounting frame (1), wherein a first motor (2) is arranged on the mounting frame (1), rotating shafts (3) are arranged on both sides of the upper surface of the mounting frame (1), rollers (4) are arranged on both ends of the rotating shaft (3), transmission devices (5) are arranged on both sides of the first motor (2), the first motor (2) drives the rotating shaft (3) to rotate through the transmission devices (5), outer rollers (6) are placed on the two rotating shafts (3), the outer rollers (6) are arranged obliquely, an inner roller (7) is arranged inside the outer roller (6), and the mounting frame (1) is provided with a plurality of rollers (4) arranged on the inner surface of the rotating shaft (3). A placing frame (8) is arranged on one side of the frame (1), and a feeding trough (9) is arranged on the placing frame (8), and the unloading end of the feeding trough (9) extends into the interior of the inner drum (7), and lower fixing frames (10) are arranged on both sides of the mounting frame (1), and upper fixing frames (11) are arranged on both sides of the feeding trough (9), and guide rods (12) are symmetrically arranged between the upper fixing frame (11) and the lower fixing frame (10), and a screw rod (13) is also arranged between the upper fixing frame (11) and the lower fixing frame (10), and the lower fixing frame (10) is provided with a plurality of guide rods (12) arranged between the upper fixing frame (11) and the lower fixing frame (10). ) is provided at the bottom of the guide rod (12) with a second motor (14) for driving the screw rod (13) to rotate, and also includes a material receiving trough (15), the outer surface of which is provided with a fixing seat (16) which is matched with the guide rod (12) and the screw rod (13), the fixing seat (16) which is matched with the guide rod (12) is provided with a through hole, and the fixing seat (16) which is matched with the screw rod (13) is provided with a threaded hole, the material receiving trough (15) is opened at one end close to the mounting frame (1), and the outer surface of the material receiving trough (15) is symmetrically provided with guide rails (17) , further comprising a baffle (22) (18), wherein both ends of the baffle (22) (18) are provided with slots slidably connected to the guide rail (17), a movable plate (19) is provided at the bottom of the baffle (22) (18), a fixed plate (20) is provided at the bottom of the guide rail (17), a fixed rod (21) is provided at the bottom of the movable plate (19), a stopper is provided at the bottom end of the fixed rod (21), a spring (23) is sleeved on the fixed rod (21), and the spring (23) is located between the movable plate (19) and the fixed plate (20).

2. The double-drum vibrating combined cleaning screen according to claim 1 is characterized in that: The outer surfaces of the outer drum (6) and the inner drum (7) are both provided with meshes, and the aperture of the meshes on the inner drum (7) is larger than the aperture of the meshes on the outer drum (6).

3. The double-drum vibrating combined cleaning screen according to claim 2 is characterized in that: The length of the outer drum (6) is the same as that of the inner drum (7), and both ends of the outer drum (6) and the inner drum (7) are aligned with each other.

4. The double-drum vibrating combined cleaning screen according to claim 1 is characterized in that: A material guide cylinder (24) is provided at the lower end of the material feeding trough (9).

5. The double-drum vibrating combined cleaning screen according to any one of claims 1 to 4, characterized in that: The inclination angle of the feeding trough (9) is equal to the inclination angle of the receiving trough (15).

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