A grain elevator

Abstract

The utility model discloses a kind of grain elevators, including elevator main body, elevator main body includes lifting frame, the top of lifting frame is equipped with discharge pipe, bottom is equipped with feed tank, filter screen is equipped on feed tank, fixed roller and moving roller are equipped on lifting frame, conveying belt is equipped between fixed roller and moving roller, conveying box is arrayed on conveying belt, driving motor is equipped on lifting frame, motor shaft of driving motor and fixed roller are all equipped with driving sprocket, driving chain is equipped between driving sprocket, the outside of lifting frame is equipped with protective box, support frame is equipped on protective box, support box is equipped on support frame, support wheel is rotatably equipped on support box, lubricating oil is arranged in support box, feeding filtration function guarantees smooth conveying, double tensioning adjustment structure improves transmission stability, and automatic lubrication design prolongs equipment life.

Description

Technical Field

[0001] This utility model relates to the field of grain processing technology, and more specifically, to a grain elevator. Background Technology

[0002] In agricultural production and grain processing, grains (such as wheat, rice, and corn) require frequent "low-to-high" transfers from harvesting and drying to storage and processing. For example, farms need to transport dried grains into granaries, grain processing plants need to lift raw grains into screening equipment, and storage centers need to transfer grains from transport vehicles to elevated grain bins.

[0003] In existing technologies, when grains are lifted, large particles mixed in with the raw materials can easily clog the feed inlet or jam the conveyor structure; the conveyor belt can loosen after long-term use, causing grain conveying to slip and reduce efficiency; the drive chain and sprocket lack continuous lubrication, wear out quickly and are prone to jamming; manually adjusting the tension of the conveyor belt is cumbersome and requires frequent shutdowns for lubrication maintenance. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the problems existing in the prior art, this utility model provides a grain elevator to solve the technical problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a grain elevator, comprising an elevator body, the elevator body including an elevator frame, a discharge pipe at the top of the elevator frame and a feed box at the bottom, a filter screen on the feed box, a fixed roller and a movable roller on the elevator frame, a conveyor belt between the fixed roller and the movable roller, conveyor boxes arrayed on the conveyor belt, a drive motor on the elevator frame, drive sprockets on the motor shaft of the drive motor and the fixed roller, a drive chain between the drive sprockets, a protective box on the outside of the elevator frame, a support frame on the protective box, a support box on the support frame, a support wheel rotatably mounted on the support box, and lubricating oil inside the support box.

[0008] The present invention is further configured such that the support box is symmetrically provided with support rods, the support rods are slidably provided with support blocks, the support box and the support blocks are provided with support springs, and the support wheel is rotatably provided on the support block, so as to facilitate upward support of the support wheel and tension of the transmission chain.

[0009] The present invention is further configured such that limiting rings are provided on both sides of the support wheel, and a brush is provided between the limiting rings. The limiting rings prevent misalignment of the connection between the transmission chain and the support wheel, and the brush is convenient for applying lubricating oil to the transmission chain.

[0010] The present invention is further configured such that a support ring is provided inside the brush, and the support height of the support ring is slightly lower than the height of the brush, so as to prevent the transmission chain from completely damaging the brush.

[0011] The present invention is further configured such that the support frame is hollow inside and communicates with the support box, and an oil filling tank is provided on one side of the support frame, and an oil filling pipe is provided on the oil filling tank to facilitate the injection of lubricating oil into the lubrication tank.

[0012] The present invention is further configured such that movable frames are provided on both sides of the movable roller, the movable frames are rotatably connected to the movable roller through bearings, and the lifting frame is provided with a movable groove that cooperates with the movable roller, so as to facilitate the adjustment of the position of the movable roller and make the conveyor belt in a taut state.

[0013] The present invention is further configured such that a fixed plate is provided on the lifting frame, and a rotating screw is threadedly connected to the fixed plate. One end of the rotating screw is rotatably connected to the moving frame, which facilitates the adjustment of the position of the moving frame.

[0014] The present invention is further configured such that the lifting frame is provided with a moving track that cooperates with the moving frame, thereby restricting the moving direction of the moving frame.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, the present invention provides a grain elevator with the following advantages:

[0017] 1. Feed filtration function ensures smooth conveying: When grain is added to the feed box, the filter screen can pre-screen out large particles of impurities (such as stones and weeds) to prevent impurities from clogging the conveyor box or jamming the conveyor belt, reduce the number of equipment downtime, ensure continuous and efficient grain conveying, adapt to the scenario of raw grain with a small amount of impurities, and reduce subsequent cleaning costs.

[0018] 2. Dual tension adjustment structure improves transmission stability: Rotating the screw can drive the moving frame to move along the track, adjust the height of the moving roller, and quickly tension the slack conveyor belt to prevent slippage during grain transportation; the support wheel, together with the support spring, always contacts the drive chain upward, and automatically compensates for the slack of the chain through the spring force, ensuring that the chain and sprocket are tightly engaged, avoiding transmission deviation or jamming, eliminating the need for frequent manual adjustment, and making it suitable for long-term continuous lifting operations.

[0019] 3. Automatic lubrication design extends equipment life: Lubricating oil is injected into the support box through the oil tank. When the chain rotates, it drives the brush to pick up the lubricating oil and apply it to the contact point between the chain and the sprocket, so as to achieve continuous lubrication of the transmission components and reduce wear. The support ring plays an auxiliary supporting role for the chain, preventing the chain from directly damaging the brush, extending the service life of the brush, reducing the frequency of lubrication maintenance, and ensuring long-term stable operation of the equipment. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a grain elevator according to the present invention;

[0021] Figure 2 This is a schematic diagram of the internal structure of a grain elevator according to the present invention;

[0022] Figure 3 for Figure 1 A magnified schematic diagram of a portion of the structure of A in the diagram;

[0023] Figure 4 for Figure 2 A magnified schematic diagram of a portion of the structure of B;

[0024] Figure 5 This is a schematic diagram of the cooperative structure of the protective box, drive motor, drive sprocket and drive chain in this utility model;

[0025] Figure 6 This is a cross-sectional view of the support box and the oil filling tank in this utility model.

[0026] In the diagram: 1. Elevator body; 2. Elevator frame; 3. Discharge pipe; 4. Feed box; 5. Filter screen; 6. Fixed roller; 7. Moving roller; 8. Conveyor belt; 9. Conveyor box; 10. Drive motor; 11. Drive sprocket; 12. Drive chain; 13. Protective box; 14. Support frame; 15. Support box; 16. Support wheel; 17. Support rod; 18. Support block; 19. Support spring; 20. Limiting ring; 21. Brush; 22. Support ring; 23. Oil tank; 24. Oil pipe; 25. Moving frame; 26. Moving groove; 27. Fixed plate; 28. Rotating screw; 29. ​​Moving track. Detailed Implementation

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0029] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0030] Please see Figures 1-6 A grain elevator includes an elevator body 1, which includes an elevator frame 2. The top of the elevator frame 2 has a discharge pipe 3, and the bottom has a feed box 4. A filter screen 5 is provided on the feed box 4. The elevator frame 2 has fixed rollers 6 and moving rollers 7. A conveyor belt 8 is provided between the fixed rollers 6 and the moving rollers 7. Conveyor boxes 9 are arrayed on the conveyor belt 8. A drive motor 10 is provided on the elevator frame 2. Drive sprockets 11 are provided on both the motor shaft of the drive motor 10 and the fixed rollers 6. A drive chain 12 is provided between the drive sprockets 11. A protective box 13 is provided on the outside of the elevator frame 2 to prevent... The protective box 13 is provided with a support frame 14, the support frame 14 is provided with a support box 15, the support box 15 is provided with a rotatable support wheel 16, the support box 15 is provided with lubricating oil, the two sides of the moving roller 7 are provided with moving frames 25, the moving frames 25 and the moving roller 7 are rotatably connected by bearings, the lifting frame 2 is provided with a moving groove 26 that cooperates with the moving roller 7, the lifting frame 2 is provided with a fixed plate 27, the fixed plate 27 is threadedly connected with a rotating screw 28, one end of the rotating screw 28 is rotatably connected to the moving frame 25, and the lifting frame 2 is provided with a moving track 29 that cooperates with the moving frame 25.

[0031] In this embodiment, during use, grains are added to the feed box 4 and sieved through the filter screen 5 to prevent large particles of impurities from entering the feed box 4. The drive motor 10 is started, and the drive motor 10 drives the fixed roller 6 to rotate through the cooperation of the drive sprocket 11 and the drive chain 12. The fixed roller 6 rotates through the conveyor belt 8 and the moving roller 7. The moving roller 7 and the fixed roller 6 convey the grains through the conveyor belt 8 and the conveyor box 9, and the grains are lifted and discharged through the discharge pipe 3. By rotating the rotating screw 28, the moving frame 25 is moved along the moving track 29. The moving frame 25 drives the moving roller 7 to move vertically, so that the conveyor belt 8 is in a taut state.

[0032] Please see Figures 5-6As one embodiment of the lubrication mechanism: support rods 17 are symmetrically arranged on the support box 15, support blocks 18 are slidably arranged on the support rods 17, support springs 19 are arranged between the support box 15 and the support blocks 18, support wheels 16 are rotatably arranged on the support blocks 18, limit rings 20 are arranged on both sides of the support wheels 16, brushes 21 are arranged between the limit rings 20, support rings 22 are arranged inside the brushes 21, the support height of the support rings 22 is slightly lower than the height of the brushes 21, the support frame 14 is hollow inside and connected to the support box 15, an oil filling tank 23 is connected to one side of the support frame 14, and an oil filling pipe 24 is arranged on the oil filling tank 23.

[0033] More specifically, oil is injected into the oil tank 23 through the oil injection pipe 24 and flows into the support box 15 through the support frame 14. The support wheel 16 abuts against the bottom of the drive chain 12. The support wheel 16 drives the support block 18 to slide downward along the support rod 17 on the support box 15 and presses down the support spring 19, so that the support wheel 16 has an upward elastic force to support the drive sprocket 11, thereby making the drive chain 12 rotate under tension. At the same time, when the drive chain 12 rotates, it drives the brush 21 and the support wheel 16 to rotate. The support wheel 16 dips into the lubricating oil through the brush 21 and applies it to the drive chain 12 as the support wheel 16 rotates, which facilitates lubrication between the drive sprocket 11 and the drive chain 12. The position of the drive chain 12 on the support wheel 16 is restricted by the limiting ring 20, and the drive chain 12 is supported by the support ring 22 to prevent the drive chain 12 from completely damaging the brush 21 and improve the service life of the support wheel 16.

[0034] In summary, during the use or operation of the entire equipment: When in use, grains are added to the feed box 4 and screened through the filter screen 5 to prevent large particles of impurities from entering the feed box 4. The drive motor 10 is started, and the drive motor 10 drives the fixed roller 6 to rotate through the cooperation of the drive sprocket 11 and the drive chain 12. The fixed roller 6 rotates through the conveyor belt 8 and the moving roller 7. The moving roller 7 and the fixed roller 6 convey the grains through the conveyor belt 8 and the conveyor box 9, and the grains are lifted and discharged through the discharge pipe 3. By rotating the rotating screw 28, the moving frame 25 is moved along the moving track 29. The moving frame 25 drives the moving roller 7 to move vertically, so that the conveyor belt 8 is in a taut state.

[0035] Oil is injected into the oil tank 23 through the oil injection pipe 24 and flows into the support box 15 through the support frame 14. The support wheel 16 abuts against the bottom of the drive chain 12. The support wheel 16 drives the support block 18 to slide downward along the support rod 17 on the support box 15 and presses down the support spring 19, so that the support wheel 16 has an upward elastic force to support the drive sprocket 11, thereby making the drive chain 12 rotate under tension. At the same time, when the drive chain 12 rotates, it drives the brush 21 and the support wheel 16 to rotate. The support wheel 16 dips into the lubricating oil through the brush 21 and applies it to the drive chain 12 as the support wheel 16 rotates, which facilitates lubrication between the drive sprocket 11 and the drive chain 12. The position of the drive chain 12 on the support wheel 16 is restricted by the limiting ring 20. The support ring 22 supports the drive chain 12 and prevents the drive chain 12 from completely damaging the brush 21, thereby improving the service life of the support wheel 16.

[0036] All other parts of this utility model that are not described in detail belong to the prior art, and therefore will not be described in detail here.

[0037] In all the solutions mentioned above, the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although the embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

[0038] In all the solutions mentioned above, those involving the operation of electrical components, unless otherwise specified, are controlled by a controller. Since the devices matched with the controllers are common devices, their control principles and circuit connections are existing, well-known, and mature technologies, and their electrical connection relationships and specific circuit structures will not be elaborated here.

[0039] Of all the solutions mentioned above, those involving motors can be combined with reducers if necessary. The connection structure and working principle between the motor and the reducer are existing known technologies, and this utility model will not elaborate on them.

Claims

1. A grain elevator, comprising an elevator body (1), characterized in that: The main body (1) of the elevator includes an elevator frame (2), a discharge pipe (3) is provided at the top of the elevator frame (2), a feed box (4) is provided at the bottom, a filter screen (5) is provided on the feed box (4), a fixed roller (6) and a moving roller (7) are provided on the elevator frame (2), a conveyor belt (8) is provided between the fixed roller (6) and the moving roller (7), a conveyor box (9) is arranged in an array on the conveyor belt (8), a drive motor (10) is provided on the elevator frame (2), a drive sprocket (11) is provided on the motor shaft of the drive motor (10) and the fixed roller (6), a drive chain (12) is provided between the drive sprockets (11), a protective box (13) is provided on the outside of the elevator frame (2), a support frame (14) is provided on the protective box (13), a support box (15) is provided on the support frame (14), a support wheel (16) is rotatably provided on the support box (15), and lubricating oil is provided inside the support box (15).

2. A grain elevator according to claim 1, characterized in that: The support box (15) is symmetrically provided with support rods (17), and a support block (18) is slidably provided on the support rods (17). A support spring (19) is provided between the support box (15) and the support block (18), and the support wheel (16) is rotatably provided on the support block (18).

3. A grain elevator according to claim 2, characterized in that: The support wheel (16) is provided with limiting rings (20) on both sides, and a brush (21) is provided between the limiting rings (20).

4. A grain elevator according to claim 3, characterized in that: The brush (21) has a support ring (22) inside, and the support height of the support ring (22) is slightly lower than the height of the brush (21).

5. A grain elevator according to claim 4, characterized in that: The support frame (14) is hollow inside and connected to the support box (15). An oil filling tank (23) is connected to one side of the support frame (14), and an oil filling pipe (24) is provided on the oil filling tank (23).

6. A grain elevator according to claim 1, characterized in that: The movable roller (7) is provided with movable frames (25) on both sides. The movable frames (25) are rotatably connected to the movable roller (7) through bearings. The lifting frame (2) is provided with a movable groove (26) that cooperates with the movable roller (7).

7. A grain elevator according to claim 6, characterized in that: The lifting frame (2) is provided with a fixed plate (27), and a rotating screw (28) is threadedly connected to the fixed plate (27). One end of the rotating screw (28) is rotatably connected to the moving frame (25).

8. A grain elevator according to claim 7, characterized in that: The lifting frame (2) is provided with a moving track (29) that cooperates with the moving frame (25).

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