Semi-automatic impurity removing machine
By designing a semi-automatic grain removal machine and adopting a motor and reducer drive system and control circuit, efficient and precise grain screening was achieved. This solved the problems of high labor intensity, low efficiency and equipment complexity of traditional manual grain removal, and improved the adaptability and grain removal effect of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU WUJIANG GRAIN RESERVE MANAGEMENT CO LTD
- Filing Date
- 2025-01-17
- Publication Date
- 2026-05-01
AI Technical Summary
Traditional grain impurity removal methods are labor-intensive, costly in terms of manpower and resources, incomplete in removal, inefficient, and environmentally unfriendly. Existing automated equipment is complex in structure, has high maintenance costs, insufficient screening efficiency and precision, and poor adaptability.
A semi-automatic impurity removal machine was designed, which adopts a drive system combining a motor and a reducer. The rotary motion is converted into the reciprocating motion of the screen mechanism through a fisheye joint and an eccentric wheel structure. Combined with a reasonable control circuit, efficient screening is achieved.
It improves the efficiency and accuracy of impurity removal, reduces labor intensity and noise pollution, reduces maintenance costs, and is highly adaptable to screening different types of grains.
Smart Images

Figure CN224181296U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of grain impurity removal technology, specifically a semi-automatic impurity removal machine. Background Technology
[0002] Traditional grain impurity removal methods rely primarily on manual operation, typically requiring two people. One person pours the grain into the screening equipment, while the other shakes or vibrates the equipment to separate impurities. This method has the following significant limitations:
[0003] High manpower and material costs: Manual impurity removal is not only labor-intensive but also requires two people to work together, increasing labor costs. At the same time, the operation and maintenance of the screening equipment also require additional material investment.
[0004] Incomplete impurity removal: Due to the limitations of manual operation and the simplicity of screening equipment, traditional impurity removal methods often fail to completely separate fine impurities in grains, affecting the impurity removal effect.
[0005] Low work efficiency: The speed of manual impurity removal is limited, making it difficult to meet the needs of large-scale grain processing. With the increase in grain production, the efficiency problem of traditional impurity removal methods has become increasingly prominent.
[0006] Poor working environment: Long hours of manual operation can easily lead to operator fatigue, and the dust and noise generated during the screening process pose a potential threat to the health of operators.
[0007] Although some highly automated grain cleaning equipment has emerged on the market, these devices still have some shortcomings in practical applications. For example, some equipment has a complex structure and high maintenance costs; while some equipment can achieve automated cleaning, the screening efficiency and accuracy still need to be improved; in addition, some equipment has poor adaptability to different types of grains, limiting its application range.
[0008] Therefore, a semi-automatic impurity removal machine is needed, especially suitable for grain impurity removal. This equipment achieves efficient and precise grain screening by optimizing the design of the screen mechanism and combining it with a reasonable drive system and control circuit. Utility Model Content
[0009] To address the problems of the prior art, this utility model provides a semi-automatic impurity removal machine.
[0010] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: a semi-automatic impurity removal machine, including a frame, a screen mechanism movably connected to the inner side of the top of the frame, a transmission mechanism provided at one end of the frame, a mounting frame fixedly connected to the inner side of the frame, a motor and a reducer fixedly connected to the top of the mounting frame, the output end of the motor and the input end of the reducer fixedly connected, a main shaft fixedly connected to the output end of the reducer, a first transmission wheel fixedly connected to the center of one end of the main shaft, and a belt drivingly connected to the outer wall of the first transmission wheel;
[0011] The transmission mechanism consists of a driven shaft, a bearing housing, a fisheye connector, and a second transmission wheel. The driven shaft is rotatably connected to the bearing housing, and the outer side of the bearing housing is fixedly connected to the frame. The second transmission wheel is fixedly connected to the center of one end of the driven shaft. A belt is connected to the outer wall of the second transmission wheel, and the second transmission wheel is connected to the first transmission wheel through the belt. A fisheye connector is connected to the center of the driven shaft, and one end of the fisheye connector is fixedly connected to one end of the screen mechanism to drive the screen mechanism to reciprocate.
[0012] In this design, the frame serves as the supporting structure for the entire impurity removal machine, bearing the weight of components such as the screen mechanism, transmission mechanism, and motor. It provides a stable operating platform, ensuring the machine will not shake or collapse during operation. Welding enhances the overall strength and stability of the frame. The transmission mechanism transmits the motor's power to the driven shaft via a belt, which in turn drives the screen mechanism in reciprocating motion through a fisheye joint. The fisheye joint enables this reciprocating motion, and the eccentric wheel and outer ring structure convert rotational motion into reciprocating motion. Rubber rollers limit the reciprocating motion of the screen mechanism, preventing it from shifting during operation. Each component and material plays a crucial role, collectively achieving the screening and impurity removal functions. Through reasonable material selection and structural design, the stability and durability of the impurity removal machine are ensured, improving work efficiency and screening quality.
[0013] In some specific implementations, the screen mechanism consists of a screen frame and a bottom screen frame, with the screen frame located at the top of the bottom screen frame and the two fixedly connected.
[0014] In some specific implementations, a screen is fixedly connected to the bottom inner side of the screen frame, and the screen is set with 10*10mm mesh.
[0015] In some specific implementations, a shaft is fixedly connected to the bottom end of the bottom screen frame, and a hanging rod is rotatably connected to both ends of the shaft. The hanging rod is rotatably connected to the outer side of the top of the frame. A material guide trough is fixedly connected to one end of the bottom screen frame for discharging the material through the screen frame. A connecting seat is fixedly connected to the other end of the bottom screen frame. A connecting screw is rotatably connected to one side of the connecting seat. One end of the connecting screw is fixedly connected to one end of the fisheye connector.
[0016] The outer wall of the connecting screw is threaded with a nut, which is used to adjust the distance between the connecting seat and the fisheye connector.
[0017] In some specific implementations, the fisheye connector consists of an eccentric wheel and an outer ring. The driven shaft is fixedly connected to the eccentric wheel at its center, the inner wall of the outer ring is rotatably connected to the eccentric wheel, and one side of the outer ring is fixedly connected to the connecting screw.
[0018] In some specific implementations, casters are fixedly connected to the bottom of the frame, allowing it to be moved or fixed in place.
[0019] In some specific implementations, a rubber roller is fixedly connected to one end of the frame to limit the reciprocating motion of the screen mechanism, prevent deviation, and reduce friction.
[0020] In some specific implementations, the frame is welded from 6# channel steel, the screen frame is welded from a support and side plates, the support is welded from 60*40*2 square tubes, the side plates are made of 2mm thick iron plates, the feed trough is welded from 2mm thick iron plates, and the whole is welded from 2mm thick iron plates.
[0021] In some specific implementations, a control circuit is also included for controlling the motor's start, stop, and speed regulation functions.
[0022] The beneficial effects of this utility model are as follows:
[0023] This invention employs a drive system combining a motor and a reducer, providing stable and continuous power to ensure efficient reciprocating motion of the screen mechanism, thereby accelerating material screening and increasing overall production capacity. The fisheye connector design allows for adjustment of the distance between the connecting screw and nut, altering the amplitude and frequency of the screen mechanism's reciprocating motion to adapt to different material screening needs, thus improving the equipment's flexibility and applicability. The rubber rollers effectively reduce noise and friction during the screen mechanism's reciprocating motion, minimizing noise pollution and mechanical vibration injuries to operators. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the overall structure of the front of this utility model.
[0025] Figure 2 This is a schematic diagram of the overall structure of the back of this utility model.
[0026] Figure 3 This is a schematic diagram of the motor transmission structure of this utility model.
[0027] Figure 4 This is a schematic diagram of the transmission mechanism structure of this utility model.
[0028] Figure 5 This is a schematic diagram of the screen mechanism of this utility model.
[0029] Figure 6 This is an exploded structural diagram of the screen mechanism of this utility model.
[0030] Figures 1 to 6 Components: 1. Frame; 2. Motor; 3. Transmission mechanism; 4. Screening mechanism; 11. Rubber roller; 12. Caster; 13. Mounting bracket; 21. Reducer; 22. Main shaft; 23. First transmission wheel; 24. Belt; 31. Driven shaft; 32. Bearing seat; 33. Fish eye joint; 34. Second transmission wheel; 41. Screen frame; 411. Screen; 42. Bottom screen frame; 421. Shaft; 4211. Hanging rod; 422. Guide trough; 423. Connecting seat; 4231. Connecting screw. Detailed Implementation
[0031] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.
[0032] like Figures 1 to 6 The image shows a semi-automatic cleaning machine.
[0033] Equipment Composition Overview
[0034] The semi-automatic cleaning machine in this embodiment mainly includes a frame 1, a screen mechanism 4, a transmission mechanism 3, a drive system consisting of a motor 2 and a reducer 21, and a control circuit.
[0035] Functions and connection methods of each component
[0036] Frame 1: Serving as the supporting structure for the entire equipment, it is welded from No. 6 channel steel to ensure the stability and durability of the equipment. Casters 12 are installed at the bottom of the frame for easy movement or securing of the equipment; rubber rollers 11 are installed at one end for limiting the reciprocating motion of the screen mechanism 4 and reducing friction.
[0037] Screening mechanism 4: Composed of screen frame 41 and bottom screen frame 42, with screen frame 41 located above and fixedly connected to bottom screen frame 42. Screen 411 is fixed to the bottom inner side of screen frame 41, with a screen aperture size of 10*10mm, used for screening materials. Bottom screen frame 42 is rotatably connected to frame 1 via shaft 421 and hanging rod 4211, with a guide trough 422 at one end to discharge the screened material. The other end is fixedly connected to the fisheye joint 33 of transmission mechanism 3 via connecting seat 423 and connecting screw 4231, with a nut used to adjust the connection distance.
[0038] Transmission mechanism 3 consists of a driven shaft 31, a bearing housing 32, a fisheye connector 33, and a second transmission wheel 34. The driven shaft 31 is fixedly connected to the frame 1 via the bearing housing 32, and one end is equipped with the second transmission wheel 34, which is connected to the first transmission wheel 23 driven by the motor 2 via a belt 24. The fisheye connector 33 is connected to the driven shaft 31, and through the structure of the eccentric wheel and the outer ring, it converts the rotary motion into the reciprocating motion of the screen mechanism 4.
[0039] Motor 2 and reducer 21: Motor 2 serves as a power source, with its output end fixedly connected to the input end of reducer 21. The output end of reducer 21 is connected to main shaft 22, and the first transmission wheel 23 on main shaft 22 drives transmission mechanism 3 through belt 24.
[0040] Control circuit: Used to control the start, stop and speed adjustment of motor 2, ensuring that the equipment can work as required.
[0041] Overall Workflow
[0042] Start the equipment: Start the motor 2 through the control circuit. The motor 2 drives the reducer 21. The reducer 21 drives the belt 24 to rotate through the main shaft 22 and the first transmission wheel 23.
[0043] Transmission mechanism operation: Belt 24 transmits power to the second transmission wheel 34, causing the driven shaft 31 to rotate. The fisheye joint 33 converts the rotational motion of the driven shaft into the reciprocating motion of the screen mechanism 4.
[0044] Screening mechanism for material screening: The screen mechanism 4 reciprocates under the drive of the fish-eye joint 33. The material is poured in from above the screen and screened by the screen 411. The material larger than the screen mesh falls through the screen holes into the bottom screen frame 42 and is finally discharged through the guide trough 422; the material smaller than the screen mesh remains above the screen and is discharged from one end by vibration.
[0045] Speed adjustment and shutdown: The speed of motor 2 can be adjusted by the control circuit to change the reciprocating frequency of the screen mechanism 4, thus adapting to the screening requirements of different materials. After the work is completed, motor 2 is stopped by the control circuit, and the equipment stops working.
[0046] Equipment movement and fixation: As needed, the equipment can be moved to a designated location via casters 12, and the casters can be locked via fixing devices to ensure the stability of the equipment during operation.
[0047] Through the above workflow, the semi-automatic impurity removal machine in this embodiment can efficiently and stably complete the screening and impurity removal of materials.
[0048] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A semi-automatic cleaning machine, comprising a frame (1), characterized in that: A screen mechanism (4) is movably connected to the inner side of the top of the frame (1). A transmission mechanism (3) is provided at one end of the frame (1). A mounting frame (13) is fixedly connected to the inner side of the frame (1). A motor (2) and a reducer (21) are fixedly connected to the top of the mounting frame (13). The output end of the motor (2) is fixedly connected to the input end of the reducer (21). A main shaft (22) is fixedly connected to the output end of the reducer (21). A first transmission wheel (23) is fixedly connected to the center of one end of the main shaft (22). A belt (24) is connected to the outer wall of the first transmission wheel (23). The transmission mechanism (3) consists of a driven shaft (31), a bearing seat (32), a fisheye connector (33), and a second transmission wheel (34). The driven shaft (31) is rotatably connected to the bearing seat (32). The outer side of the bearing seat (32) is fixedly connected to the frame (1). The second transmission wheel (34) is fixedly connected to the center of one end of the driven shaft (31). The outer wall of the second transmission wheel (34) is connected to a belt (24). The second transmission wheel (34) is connected to the first transmission wheel (23) through the belt (24). The center of the driven shaft (31) is connected to the fisheye connector (33). One end of the fisheye connector (33) is fixedly connected to one end of the screen mechanism (4) to drive the screen mechanism (4) to reciprocate.
2. The semi-automatic impurity removal machine according to claim 1, characterized in that: The screen mechanism (4) consists of a screen frame (41) and a bottom screen frame (42), with the screen frame (41) located at the top of the bottom screen frame (42) and the two fixedly connected.
3. A semi-automatic impurity removal machine according to claim 2, characterized in that: The inner bottom of the screen frame (41) is fixedly connected to a screen (411), and the screen (411) is set with a screen hole of 10*10mm.
4. A semi-automatic impurity removal machine according to claim 2, characterized in that: The bottom end of the bottom screen frame (42) is fixedly connected to a shaft (421), and both ends of the shaft (421) are rotatably connected to a hanging rod (4211). The hanging rod (4211) is rotatably connected to the outer side of the top of the frame (1). One end of the bottom screen frame (42) is fixedly connected to a guide trough (422) for discharging material from the screen frame (41). The other end of the bottom screen frame (42) is fixedly connected to a connecting seat (423). One side of the connecting seat (423) is rotatably connected to a connecting screw (4231). One end of the connecting screw (4231) is fixedly connected to one end of the fisheye connector (33). The outer wall of the connecting screw (4231) is threaded with a nut, which is used to adjust the distance between the connecting seat (423) and the fisheye connector (33).
5. A semi-automatic impurity removal machine according to claim 4, characterized in that: The fisheye connector (33) consists of an eccentric wheel and an outer ring. The center of the driven shaft (31) is fixedly connected to the eccentric wheel. The inner wall of the outer ring is rotatably connected to the eccentric wheel. One side of the outer ring is fixedly connected to the connecting screw (4231).
6. A semi-automatic impurity removal machine according to claim 1, characterized in that: The bottom of the frame (1) is fixedly connected to casters (12), which can be moved or fixed.
7. A semi-automatic impurity removal machine according to claim 1, characterized in that: One end of the frame (1) is fixedly connected to a rubber roller (11) for limiting the reciprocating motion of the screen mechanism (4), preventing deviation and reducing friction.
8. A semi-automatic impurity removal machine according to claim 4, characterized in that: The frame (1) is made of 6# channel steel welded as a whole. The screen frame (41) is made of a support and a side plate welded together. The support is made of 60*40*2 square tube welded together. The side plate is made of 2mm thick iron plate. The guide trough (422) is made of 2mm thick iron plate welded together. The (42) is made of 2mm thick iron plate welded together as a whole.
9. A semi-automatic impurity removal machine according to claim 1, characterized in that: It also includes a control circuit for controlling the start, stop and speed regulation of the motor (2).