Double-helix precise conveyor
By employing the double-helix design and speed control of the double-helix precision conveyor, the compatibility problem of conveying boron carbide and polyethylene was solved, achieving efficient mixed discharge and safe conveying.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-19
- Publication Date
- 2026-03-31
AI Technical Summary
Existing screw conveyors are difficult to adapt to the different physical and chemical properties of boron carbide and polyethylene at the same time, resulting in low conveying efficiency and easy clogging and wear of the equipment.
The device employs a double-helix design, using a large screw and a small screw in the first and second conveying pipes respectively. The screw speed is controlled by a motor and a reducer to achieve precise conveying of boron carbide and polyethylene, which are then mixed and discharged in the discharge hopper.
It improves conveyor adaptability and accuracy, prevents blockages and wear, provides a convenient mixing and discharge process, and enhances safety.
Smart Images
Figure CN224061803U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of conveyor technology, and in particular to a double-helix precision conveyor. Background Technology
[0002] A screw conveyor is a mechanical device that uses a motor to drive a spiral blade to rotate, thereby pushing materials to achieve the purpose of conveying. It has the advantages of simple structure, small cross-sectional area, good sealing, convenient operation and easy maintenance. It is suitable for conveying materials in horizontal, inclined or vertical directions. As two materials with different properties, boron carbide and polyethylene do require screw designs of different sizes and thicknesses in the conveying process of screw conveyors.
[0003] Boron carbide is a grayish-black powder with a hardness second only to diamond and cubic boron nitride. It has high density, high melting point, excellent thermal properties and semiconductor conductivity, stable chemical properties, and resistance to acid and alkali corrosion. Polyethylene, on the other hand, is a non-toxic, odorless white powder or granules with a milky-white appearance and a waxy feel. It has low water absorption and good water resistance, and is resistant to a variety of chemicals at room temperature, although nitric acid and sulfuric acid have a strong destructive effect on it. Due to the differences in particle size, flowability, viscosity, and other physical and chemical properties between boron carbide and polyethylene, different sizes and coarseness of screws are required to ensure conveying efficiency and prevent material blockage and equipment wear. The hardness and high melting point of boron carbide require screws with stronger wear resistance and corrosion resistance, while the particle characteristics and chemical stability of polyethylene require screws with appropriate helix angles and blade profiles to ensure smooth material conveying. In the existing technology, screw conveyors are generally single-screw structures, which are difficult to adapt to the need for separate conveying and mixing of boron carbide and polyethylene for plate making. Therefore, this utility model proposes a double-screw precision conveyor to solve the problems existing in the prior art. Utility Model Content
[0004] To address the aforementioned problems, this utility model proposes a double-helix precision conveyor. This double-helix precision conveyor adopts a double-helix design, using a large screw and a small screw adapted to transport boron carbide and polyethylene materials respectively in the first and second conveying pipes. This facilitates precise conveying, improves adaptability, and then conveys the materials to the discharge hopper. The materials are then discharged through the lower discharge port for easy mixing, thus providing convenience for production.
[0005] To achieve the purpose of this utility model, the utility model is implemented through the following technical solution: a double helix precision conveyor, including a motor support and a discharge bin, a first conveying pipe and a second conveying pipe are connected between the motor support and the discharge bin, a feeding hopper is provided on one side above the first conveying pipe and the second conveying pipe, and a large screw and a small screw are respectively rotatably provided inside the first conveying pipe and the second conveying pipe, and a drive assembly for driving the large screw and the small screw to rotate is provided on the motor support;
[0006] One end of the first conveying pipe and the second conveying pipe are connected to the discharge hopper, and the bottom of the discharge hopper is provided with a discharge port.
[0007] A further improvement is that the drive assembly includes a first assembly and a second assembly. The first assembly includes a motor, a reducer, and a first coupling. The reducer is mounted on a motor bracket. The output end of the motor is connected to the reducer, and the output end of the reducer is connected to the first coupling. The first coupling is connected to one end of a large screw.
[0008] A further improvement is that the second component includes a geared motor and a second coupling. The geared motor is mounted on a motor bracket, and the output end of the geared motor is connected to the second coupling, which is connected to a small screw.
[0009] A further improvement is that: one end of the motor bracket is provided with a bearing seat, and an inner bearing is provided above the inside of the discharge hopper; the two ends of the large screw and the small screw are rotatably installed through the bearing seat and the inner bearing.
[0010] A further improvement is that a safety cover is provided on the outside of the motor bracket, and the safety cover covers the reducer and the geared motor.
[0011] A further improvement is that one end of the discharge hopper is provided with an end plate, and the end plate is provided with a handle.
[0012] A further improvement is that the inside of the feeding hopper is provided with two sets of compartments, and the two sets of compartments are respectively connected to the first conveying pipe and the second conveying pipe. The feeding hopper is provided with a feeding port at the top, and a first connecting plate is provided on the feeding port. The discharging port is provided with a second connecting plate below. Fixing holes are provided on both the first connecting plate and the second connecting plate.
[0013] The beneficial effects of this utility model are as follows:
[0014] 1. This utility model adopts a double helix design, in which large screws and small screws adapted to boron carbide and polyethylene are respectively conveyed in the first conveying pipe and the second conveying pipe, which facilitates accurate conveying, improves adaptability, and then conveys to the discharge hopper. After passing through the discharge port below, it is convenient to mix and discharge, which provides convenience for production.
[0015] 2. This utility model uses a motor and a reducer to control the speed of the large screw, and the speed of the small screw is controlled by the reducer motor. This facilitates the separate control of raw materials, improves the conveying accuracy, and the reducer, reducer motor and motor bracket are covered with a safety cover to improve safety. Attached Figure Description
[0016] Figure 1 This is the front view of the present invention;
[0017] Figure 2 This is a side view of the present invention;
[0018] Figure 3 This is a top view of the present invention.
[0019] The components are as follows: 1. Motor bracket; 2. First conveying pipe; 3. Second conveying pipe; 4. Discharge hopper; 5. Feed hopper; 6. Large screw; 7. Small screw; 8. Motor; 9. Reducer; 10. First coupling; 11. Gear motor; 12. Second coupling; 13. Bearing housing; 14. Inner bearing; 15. Safety guard; 16. End plate; 17. First connecting plate; 18. Second connecting plate. Detailed Implementation
[0020] To deepen the understanding of this utility model, the following detailed description will be provided in conjunction with embodiments. These embodiments are only used to explain this utility model and do not constitute a limitation on the scope of protection of this utility model.
[0021] Example 1
[0022] according to Figure 1 , 2 As shown in Figure 3, this embodiment proposes a double-helix precision conveyor, including a motor support 1 and a discharge bin 4. A first conveying pipe 2 and a second conveying pipe 3 are connected between the motor support 1 and the discharge bin 4. A feed hopper 5 is provided on one side above the first conveying pipe 2 and the second conveying pipe 3. A large screw 6 and a small screw 7 are respectively rotatably provided inside the first conveying pipe 2 and the second conveying pipe 3. A drive assembly for driving the large screw 6 and the small screw 7 to rotate is provided on the motor support 1.
[0023] One end of the first conveying pipe 2 and the second conveying pipe 3 is connected to the discharge hopper 4, and the bottom of the discharge hopper 4 is provided with a discharge port. In use, the material is fed into the first conveying pipe 2 and the second conveying pipe 3 through the feeding hopper 5. The drive assembly drives the large screw 6 and the small screw 7, which are adapted to boron carbide and polyethylene, to rotate, and the materials are conveyed in the first conveying pipe 2 and the second conveying pipe 3 respectively, which facilitates accurate conveying and improves adaptability. The materials are then conveyed to the discharge hopper 4 and discharged through the discharge port below, which facilitates mixed discharge and provides convenience for production.
[0024] The drive assembly includes a first component and a second component. The first component includes a motor 8, a reducer 9, and a first coupling 10. The reducer 9 is mounted on a motor bracket 1, and the output end of the motor 8 is connected to the reducer 9, which in turn is connected to the first coupling 10. The first coupling 10 is connected to one end of the large screw 6. The second component includes a geared motor 11 and a second coupling 12. The geared motor 11 is mounted on the motor bracket 1, and its output end is connected to the second coupling 12, which is connected to the small screw 7. In use, the motor 8, in conjunction with the reducer 9, drives the first coupling 10 to rotate, controlling the speed of the large screw 6. The geared motor 11 drives the small screw 7 to rotate, controlling its speed. This allows for convenient control of different raw materials, improving conveying accuracy.
[0025] One end of the motor bracket 1 is provided with a bearing seat 13, and an inner bearing 14 is provided above the inside of the discharge hopper 4. The two ends of the large screw 6 and the small screw 7 are rotatably mounted through the bearing seat 13 and the inner bearing 14. In use, the two ends of the large screw 6 and the small screw 7 are supported by the bearing seat 13 and the inner bearing 14, allowing the two ends of the large screw 6 and the small screw 7 to rotate for conveying.
[0026] A safety cover 15 is provided on the outside of the motor bracket 1, and the safety cover 15 covers the reducer 9 and the geared motor 11. In use, the safety cover 15 covers the reducer 9, the geared motor 11 and the motor bracket 1 to improve safety.
[0027] The feed hopper 5 has two sets of compartments inside, which are respectively connected to the first conveying pipe 2 and the second conveying pipe 3. A feed inlet is located at the top of the feed hopper 5, and a first connecting plate 17 is provided on the feed inlet. A second connecting plate 18 is located below the discharge outlet. Both the first connecting plate 17 and the second connecting plate 18 have fixing holes. In use, materials can be fed into the first conveying pipe 2 and the second conveying pipe 3 through the two compartments of the feed hopper 5. The drive assembly rotates the large screw 6 and the small screw 7, which are adapted to boron carbide and polyethylene, respectively, and the materials are conveyed in the first conveying pipe 2 and the second conveying pipe 3 for convenient and accurate conveying and improved adaptability. The materials are then conveyed to the discharge bin 4 and discharged through the discharge outlet below for easy mixing. The feed inlet is easily connected to the feeding equipment via the first connecting plate 17 and fixing holes, and the discharge outlet is easily connected to the processing equipment via the second connecting plate 18 and fixing holes.
[0028] Example 2
[0029] according to Figure 1 , 2As shown in Figure 3, this embodiment proposes a double-helix precision conveyor, including a motor support 1 and a discharge bin 4. A first conveying pipe 2 and a second conveying pipe 3 are connected between the motor support 1 and the discharge bin 4. A feed hopper 5 is provided on one side above the first conveying pipe 2 and the second conveying pipe 3. A large screw 6 and a small screw 7 are respectively rotatably provided inside the first conveying pipe 2 and the second conveying pipe 3. A drive assembly for driving the large screw 6 and the small screw 7 to rotate is provided on the motor support 1.
[0030] One end of the first conveying pipe 2 and the second conveying pipe 3 is connected to the discharge hopper 4, and the bottom of the discharge hopper 4 is provided with a discharge port. In use, the material is fed into the first conveying pipe 2 and the second conveying pipe 3 through the feeding hopper 5. The drive assembly drives the large screw 6 and the small screw 7, which are adapted to boron carbide and polyethylene, to rotate, and the materials are conveyed in the first conveying pipe 2 and the second conveying pipe 3 respectively, which facilitates accurate conveying and improves adaptability. The materials are then conveyed to the discharge hopper 4 and discharged through the discharge port below, which facilitates mixed discharge and provides convenience for production.
[0031] One end of the discharge hopper 4 is provided with an end plate 16, and the end plate 16 is provided with a handle. In use, the end plate 16 can be opened by operating the handle, which facilitates maintenance of the inside of the discharge hopper.
[0032] The feed hopper 5 has two sets of compartments inside, which are respectively connected to the first conveying pipe 2 and the second conveying pipe 3. A feed inlet is located at the top of the feed hopper 5, and a first connecting plate 17 is provided on the feed inlet. A second connecting plate 18 is located below the discharge outlet. Both the first connecting plate 17 and the second connecting plate 18 have fixing holes. In use, materials can be fed into the first conveying pipe 2 and the second conveying pipe 3 through the two compartments of the feed hopper 5. The drive assembly rotates the large screw 6 and the small screw 7, which are adapted to boron carbide and polyethylene, respectively, and the materials are conveyed in the first conveying pipe 2 and the second conveying pipe 3 for convenient and accurate conveying and improved adaptability. The materials are then conveyed to the discharge bin 4 and discharged through the discharge outlet below for easy mixing. The feed inlet is easily connected to the feeding equipment via the first connecting plate 17 and fixing holes, and the discharge outlet is easily connected to the processing equipment via the second connecting plate 18 and fixing holes.
[0033] This double-helix precision conveyor adopts a double-helix design. The large screw 6 and small screw 7, adapted to transport boron carbide and polyethylene materials respectively, convey them through the first conveying pipe 2 and the second conveying pipe 3, facilitating precise conveying and improving adaptability. The materials are then conveyed to the discharge hopper 4 and discharged through the lower outlet for easy mixing, providing convenience for production. Furthermore, this product uses a motor 8 and a reducer 9 to control the speed of the large screw 6, and a geared motor 11 to control the speed of the small screw 7, allowing for separate control of the raw materials and improving conveying accuracy. Fifteen safety guards are installed to house the reducer 9, the geared motor 11, and the motor bracket 1, enhancing safety.
[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A double helix precision conveyor comprising a motor support (1) and a discharge bin (4), characterized in that: The motor support (1) and the discharge bin (4) are connected with a first conveying pipe (2) and a second conveying pipe (3), one side above the first conveying pipe (2) and the second conveying pipe (3) is provided with a feeding hopper (5), and the inside of the first conveying pipe (2) and the second conveying pipe (3) is respectively provided with a large screw rod (6) and a small screw rod (7), and the motor support (1) is provided with a driving assembly for driving the large screw rod (6) and the small screw rod (7) to rotate; One end of the first conveying pipe (2) and the second conveying pipe (3) is communicated with the discharge bin (4), and the bottom of the discharge bin (4) is provided with a discharge port.
2. The double helix precision conveyor of claim 1, wherein: The driving assembly comprises a first assembly and a second assembly, the first assembly comprises a motor (8), a speed reducer (9) and a first coupling (10), the speed reducer (9) is installed on the motor support (1), the output end of the motor (8) is connected with the speed reducer (9), and the output end of the speed reducer (9) is connected with the first coupling (10), and the first coupling (10) is connected with one end of the large screw rod (6).
3. A double helix precision conveyor as claimed in claim 2, wherein: The second assembly comprises a speed reduction motor (11) and a second coupling (12), the speed reduction motor (11) is installed on the motor support (1), the output end of the speed reduction motor (11) is connected with the second coupling (12), and the second coupling (12) is connected with the small screw rod (7).
4. The double helix precision conveyor of claim 3, wherein: One end of the motor support (1) is provided with a bearing seat (13), the inside of the discharge bin (4) is provided with an inner bearing (14), and the two ends of the large screw rod (6) and the small screw rod (7) are rotatably installed through the bearing seat (13) and the inner bearing (14).
5. A double helix precision conveyor as claimed in claim 4, wherein: The outer side of the motor support (1) is provided with a safety shield (15), and the safety shield (15) covers the speed reducer (9) and the speed reduction motor (11).
6. The double helix precision conveyor of claim 1, wherein: One end of the discharge bin (4) is provided with an end plate (16), and the end plate (16) is provided with a handle.
7. The dual helix precision conveyor of claim 1, wherein: The inside of the feeding hopper (5) is provided with two groups of compartments, and the two groups of compartments are respectively communicated with the first conveying pipe (2) and the second conveying pipe (3), the upper side of the feeding hopper (5) is provided with a feeding port, and the feeding port is provided with a first connecting plate (17), the lower side of the discharge port is provided with a second connecting plate (18), and the first connecting plate (17) and the second connecting plate (18) are both provided with fixing holes.