Differential screw conveyor for conveying viscous materials

Abstract

A differential screw conveyor for conveying viscous materials is characterized in that a left end plate of the conveyor is fixedly mounted at the front end of a conveyor shell, a right end plate of the conveyor is fixedly mounted at the rear end of the conveyor shell, an upper cover of the conveyor is fixedly mounted above the conveyor shell, and an end plate connecting frame and the left end plate of the conveyor are fixedly mounted together; the motor and the end plate connecting frame are directly or indirectly installed together, a feeding port is formed in the top of the conveyor upper cover and arranged in front of the conveyor upper cover, a discharging port is formed in the bottom of the conveyor shell and arranged behind the conveyor shell, a double-spiral-ribbon spiral shaft and a single-spiral-ribbon spiral shaft are arranged in the conveyor shell, and the double-spiral-ribbon spiral shaft and the single-spiral-ribbon spiral shaft are connected with the single-spiral-ribbon spiral shaft. The double-helical-ribbon spiral shaft and the single-helical-ribbon spiral shaft are arranged in parallel and are driven by a motor to rotate respectively. The double-helical-ribbon spiral shaft and the single-helical-ribbon spiral shaft are meshed through differential speed, the double helical ribbons have a cutting effect on materials, and conveying of the materials is accelerated.

Description

Technical Field

[0001] The utility model discloses a screw conveyor, in particular a differential screw conveyor for conveying viscous materials, which relates to the technical field of conveying production of viscous materials, and particularly to the technical field of conveying production of acrylonitrile-butadiene-styrene plastics, polyamides, polyformaldehydes, etc. Background Art

[0002] Existing conventional conveying screws are mostly single-axis or double-axis meshing conveyors, which have high conveying efficiency and good effect for various powdery, granular and small-block materials. However, for lumpy materials that are perishable, highly viscous and have high moisture content, the disadvantages of ordinary screw conveyors will be very obvious. Viscous materials will cause an increase in the resistance on the screw shaft, and it is easy to get stuck and break during operation, with a short service life and cumbersome replacement. Moreover, this often occurs, affecting normal production. Summary of the Invention

[0003] Aiming at the disadvantage that the screw conveyor in the above-mentioned existing technology will cause an increase in the resistance on the screw shaft when conveying viscous materials, the utility model provides a differential screw conveyor for conveying viscous materials, which is designed for lumpy materials with high viscosity and high moisture content. The double-ribbon screw shaft and the single-ribbon screw shaft are meshed through differential speed, which has a cutting effect on the materials and accelerates the conveying of the materials.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a differential screw conveyor for conveying viscous materials, the screw conveyor includes a motor, an end plate connection frame, the left end plate of the conveyor, the upper cover of the conveyor, the conveyor housing and the right end plate of the conveyor. The left end plate of the conveyor is fixedly installed at the front end of the conveyor housing, the right end plate of the conveyor is fixedly installed at the rear end of the conveyor housing, the upper cover of the conveyor is fixedly installed above the conveyor housing, the end plate connection frame is fixedly installed together with the left end plate of the conveyor, the motor is directly or indirectly installed together with the end plate connection frame. There is a feed inlet at the top of the upper cover of the conveyor, and the feed inlet is arranged in front of the upper cover of the conveyor. There is a discharge outlet at the bottom of the conveyor housing, and the discharge outlet is arranged at the rear of the conveyor housing. A double-ribbon screw shaft and a single-ribbon screw shaft are arranged in the conveyor housing, the double-ribbon screw shaft and the single-ribbon screw shaft are arranged in parallel, and the double-ribbon screw shaft and the single-ribbon screw shaft are respectively driven to rotate by the motor.

[0005] The technical solution adopted by the utility model to solve its technical problems further includes:

[0006] A speed reducer is fixedly installed on the end plate connection frame, the motor rotor is connected to the input shaft of the speed reducer, a third gear is connected to the output shaft of the speed reducer, a first gear is fixedly connected to the end of the double-ribbon screw shaft, a second gear is fixedly connected to the end of the single-ribbon screw shaft, and the third gear meshes with the first gear and the second gear respectively.

[0007] The described first gear is connected to the double - stranded spiral shaft by a key, and the second gear is connected to the single - stranded spiral shaft by a key. The rotational speed of the double - stranded spiral shaft controlled by the first gear is one - half of that of the single - stranded spiral shaft, and the double - stranded spiral shaft and the single - stranded spiral shaft rotate in the same direction.

[0008] The described double - stranded spiral shaft has a double - stranded structure. One has a starting angle of 0°, the other has a starting angle of 180°, and the lead is 1 / 2 of the pitch.

[0009] The described motor and reducer are fixedly installed at the front end of the conveyor housing through an end - plate connecting frame.

[0010] The left end - plate of the described conveyor and the right end - plate of the conveyor are respectively fixedly installed together with the conveyor housing through bolts.

[0011] The upper cover of the described conveyor is divided into three parts, which are respectively fixed to the flange of the conveyor housing by bolts. Among them, there is a feed inlet on the front part, the middle part is a pure cover plate, and there is a spare maintenance observation hole on the rear part. The spare maintenance observation hole is arranged above the discharge port.

[0012] The bottom of the described conveyor housing is fixedly installed with supports.

[0013] The beneficial effects of the present utility model are as follows: The present utility model is suitable for transporting lumpy materials that are perishable, highly viscous, and have a high water content. The double - stranded spiral shaft and the single - stranded spiral shaft in the present utility model are meshed through a differential speed. Among them, the double - stranded spiral has a cutting effect on the material, accelerating the transportation of the material. There is a pusher check device at the end of the conveying spiral shaft, accelerating the outflow of the material. The present utility model can pass hot steam inside the spiral shaft, turning it into a drying conveying spiral, playing a certain drying role on the material, and controlling the double - stranded spiral shaft and the single - stranded spiral shaft through the gear transmission of the output shaft of the reducer.

[0014] The following will further illustrate the present utility model in conjunction with the drawings and specific embodiments. Brief Description of the Drawings

[0015] Figure 1 It is a front - view structural schematic diagram of the present utility model.

[0016] Figure 2 It is a top - view (removing the upper cover) structural schematic diagram of the present utility model.

[0017] Figure 3 It is Figure 1 A - A sectional structural schematic diagram of

[0018] In the figure: 1 - motor, 2 - speed reducer, 3 - end plate connection frame, 4 - left end plate of the conveyor, 5 - feed inlet, 6 - upper cover of the conveyor, 7 - spare maintenance observation hole, 8 - right end plate of the conveyor, 9 - discharge opening, 10 - support, 11 - conveyor housing, 12 - double - spiral ribbon shaft, 13 - single - spiral ribbon shaft, 14 - first gear, 15 - second gear, 16 - third gear. Specific implementation mode

[0019] This embodiment is the preferred implementation mode of the present utility model. All other devices with the same or similar principles and basic structures as this embodiment are within the protection scope of the present utility model.

[0020] Please refer to the attached Figure 1 and the attached Figure 2 . The present utility model mainly includes a differential - speed screw conveyor for transporting viscous materials. The differential - speed screw conveyor mainly includes a motor 1, an end plate connection frame 3, a left end plate 4 of the conveyor, an upper cover 6 of the conveyor, a conveyor housing 11, and a right end plate 8 of the conveyor. The left end plate 4 of the conveyor is fixedly installed at the front end of the conveyor housing 11, the right end plate 8 of the conveyor is fixedly installed at the rear end of the conveyor housing 11, the upper cover 6 of the conveyor is fixedly installed above the conveyor housing 11, the end plate connection frame 3 is fixedly installed together with the left end plate 4 of the conveyor, and the motor 1 is directly or indirectly installed together with the end plate connection frame 3. In the present utility model, the front and rear are defined according to the advancing direction of the material. During the conveying process of the material, it is conveyed from the front to the rear. An inlet 5 is provided at the top of the upper cover 6 of the conveyor, the inlet 5 is arranged in front of the upper cover 6 of the conveyor, a discharge opening 9 is provided at the bottom of the conveyor housing 11, and the discharge opening 9 is arranged at the rear of the conveyor housing 11. In this embodiment, a double - spiral ribbon shaft 12 and a single - spiral ribbon shaft 13 are arranged in the conveyor housing 11. The double - spiral ribbon shaft 12 and the single - spiral ribbon shaft 13 are arranged in parallel, and the double - spiral ribbon shaft 12 and the single - spiral ribbon shaft 13 are respectively driven to rotate by the motor 1.

[0021] In this embodiment, a speed reducer 2 is fixedly installed on the end plate connection frame 3. The rotor of the motor 1 is connected to the input shaft of the speed reducer 2. A third gear 16 is connected to the output shaft of the speed reducer 2. The end of the double - spiral ribbon shaft 12 is fixedly connected to a first gear 14, and the end of the single - spiral ribbon shaft 13 is fixedly connected to a second gear 15. The third gear 16 meshes with the first gear 14 and the second gear 15 respectively, that is, the speed reducer 2 drives the double - spiral ribbon shaft 12 and the single - spiral ribbon shaft 13 to rotate in the same direction through the third gear 16.

[0022] In this embodiment, the second gear 15 and the third gear 16 have the same diameter (in other words, they have the same number of teeth on the gear). The diameter of the first gear 14 is twice that of the third gear 16 (in other words, the number of teeth on the first gear 14 is twice that of the third gear 16). When rotating, the rotational speed of the single - spiral ribbon shaft 13 is twice that of the double - spiral ribbon shaft 12. The third gear 16 connected to the output shaft of the speed reducer 2 serves as a control gear for one - control - two, controlling the first gear 14 and the second gear 15 respectively. The first gear 14 is connected to the double - head spiral ribbon shaft 12 by a key, and the second gear 15 is connected to the single - head spiral ribbon shaft 13 by a key. Among them, the rotational speed of the double - head spiral ribbon shaft 12 controlled by the first gear 14 is one - half of that of the single - head spiral ribbon shaft 13, and the rotation directions are the same. Moreover, the double - spiral ribbons of the double - head spiral ribbon shaft 12 have a cutting effect on the conveyed viscous material, ensuring the stable conveyance of the viscous material.

[0023] In this embodiment, the double - spiral ribbon shaft 12 has a double - spiral ribbon structure. One spiral ribbon has a starting angle of 0°, and the other has a starting angle of 180°. That is, there are two spiral ribbons on the double - spiral ribbon shaft 12, and there is one spiral ribbon on the single - spiral ribbon shaft 13. The pitch between adjacent spiral ribbons of the double - spiral ribbon shaft 12 is the same as the pitch between the spiral ribbons on the single - spiral ribbon shaft 13. The spiral ribbons of the double - head spiral ribbon shaft 12 and the single - head spiral ribbon shaft 13 are both solid spiral surfaces, and the pitches of the two sets of spirals are the same. The difference lies in the two spiral ribbons of the double - spiral 12. One spiral ribbon has a starting angle of 0°, and the other has a starting angle of 180°, and the lead is 1 / 2 of the pitch. In addition, when the two sets of spirals are installed, the installation angle is adjusted to achieve perfect meshing between them.

[0024] In this embodiment, the motor 1 and the speed reducer 2 are fixedly installed at the front end of the conveyor housing 11 through the end - plate connection frame 3. Specifically, during implementation, the motor 1 and the speed reducer 2 can also be installed at the rear end of the conveyor housing 11, or they can be installed in other types of installation methods according to the equipment space layout, not limited to the current installation position shown in the figure.

[0025] In this embodiment, the end - plate connection frame 3 protects the internal transmission gears from the impact of foreign objects, and at the same time is used to fix the shaft heads of the conveyor spiral shafts and for sealing.

[0026] In this embodiment, the left end - plate 4 of the conveyor and the right end - plate 8 of the conveyor are respectively fixedly installed together with the conveyor housing 11 through bolts.

[0027] In this embodiment, the conveyor upper cover 6 is divided into three parts, which are respectively fixed to the flanges of the conveyor housing 11 by bolts. Among them, there is a feed inlet 5 on the front part, the middle part serves as a pure cover plate, and there is a spare maintenance observation hole 7 on the rear part. The spare maintenance observation hole 7 is arranged above the discharge port 9.

[0028] In this embodiment, a support 10 is fixedly installed at the bottom of the conveyor housing 11.

[0029] When the utility model is working, the viscous material from the previous process enters the differential screw conveyor through the feed inlet 5. The double spiral ribbon shaft 12 and the single spiral ribbon shaft 13 continuously engage and cut the material, pushing the material forward. There is a scraping device at the end of the conveying screw shaft, which continuously extrudes the conveyed material towards the discharge port 9 for subsequent processing, thus completing the conveying process.

[0030] The utility model is suitable for conveying lumpy materials that are perishable, highly viscous, and have a high moisture content. The double spiral ribbon shaft and the single spiral ribbon shaft in the utility model are meshed through differential speed. Among them, the double spiral ribbon has a cutting effect on the material, accelerating the conveying of the material. There is a pushing and check device at the end of the conveying screw shaft, accelerating the outflow of the material. The utility model can pass hot steam through the inside of the screw shaft to change it into a drying conveying screw, which has a certain drying effect on the material. The double spiral ribbon shaft and the single spiral ribbon shaft are controlled by the gear transmission of the output shaft of the reducer.

Claims

1. A differential screw conveyor for conveying viscous materials, characterized in that: The screw conveyor comprises a motor (1), an end plate connecting frame (3), a left end plate (4) of the conveyor, a conveyor cover (6), a conveyor housing (11) and a right end plate (8) of the conveyor, wherein the left end plate (4) of the conveyor is fixedly mounted at the front end of the conveyor housing (11), the right end plate (8) of the conveyor is fixedly mounted at the rear end of the conveyor housing (11), the conveyor cover (6) is fixedly mounted above the conveyor housing (11), the end plate connecting frame (3) and the left end plate (4) of the conveyor are fixedly mounted together, and the motor (1) is directly or indirectly connected to the end plate connecting frame The conveyor housing (11) is provided with a double-screw spiral shaft (12) and a single-screw spiral shaft (13). The double-screw spiral shaft (12) and the single-screw spiral shaft (13) are arranged in parallel. The double-screw spiral shaft (12) and the single-screw spiral shaft (13) are respectively driven to rotate by the motor (1).

2. The differential screw conveyor for conveying viscous materials according to claim 1, characterized in that: A reducer (2) is fixedly mounted on the end plate connection frame (3); a rotor of the motor (1) is connected to an input shaft of the reducer (2); a third gear (16) is connected to an output shaft of the reducer (2); an end of the double-screw spiral shaft (12) is fixedly connected to a first gear (14); an end of the single-screw spiral shaft (13) is fixedly connected to a second gear (15); and the third gear (16) is meshed with the first gear (14) and the second gear (15), respectively.

3. The differential screw conveyor for conveying viscous materials according to claim 2, characterized in that: The first gear (14) is connected to the double-headed spiral belt screw shaft (12) via a key, and the second gear (15) is connected to the single-headed spiral belt screw shaft (13) via a key. The rotation speed of the double-headed spiral belt screw shaft (12) is half of that of the single-headed spiral belt screw shaft (13) under the control of the first gear (14), and the double-headed spiral belt screw shaft (12) and the single-headed spiral belt screw shaft (13) have the same direction of rotation.

4. The differential screw conveyor for conveying viscous materials according to claim 1, characterized in that: The double-screw spiral shaft (12) is a double-screw structure, one starting angle is 0°, the other starting angle is 180°, and the lead is 1 / 2 of the pitch.

5. The differential screw conveyor for conveying viscous materials according to claim 1, characterized in that: The motor (1) and the reducer (2) are fixedly mounted on the front end of the conveyor housing (11) via an end plate connection frame (3).

6. The differential screw conveyor for conveying viscous materials according to claim 1, characterized in that: The left end plate (4) of the conveyor and the right end plate (8) of the conveyor are fixedly mounted to the conveyor housing (11) by bolts respectively.

7. The differential screw conveyor for conveying viscous materials according to claim 1, characterized in that: The conveyor cover (6) is divided into three parts, which are fixed to the flanges of the conveyor housing (11) by bolts. The front part is provided with a feed port (5), the middle part is used as a pure cover plate, and the rear part is provided with a spare inspection and observation hole (7). The spare inspection and observation hole (7) is arranged above the discharge port (9).

8. The differential screw conveyor for conveying viscous materials according to claim 1, characterized in that: A support (10) is fixedly mounted on the bottom of the conveyor housing (11).

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