Modularized fan for hot air circulation rotary screen drying machine

Abstract

The utility model discloses a modular fan for a hot air circulation rotary screen drying machine, and belongs to the technical field of hot air box equipment. The motor is fixedly mounted on one side face of the mounting plate, the fan impeller is arranged on the other side face of the mounting plate and is in direct drive connection with the motor, a motor mounting platform is formed on the side, where the motor is mounted, of the mounting plate, the motor is fixed to the motor mounting platform, a connecting hole is formed in the mounting plate, and a transmission disc penetrates through the connecting hole; one end of the transmission disc is connected with the motor, the other end of the transmission disc is connected with the fan impeller, and a flange edge is formed around the mounting plate and used for being fixed to a machine box of the hot air circulation rotary screen drying machine. The fan has the advantages that the fan impeller and the motor are mounted on the mounting plate to form a modular structure, so that the fan can be integrally disassembled, and disassembly, assembly and maintenance are facilitated; due to the fact that the fan impeller and the motor direct drive structure are adopted, transmission efficiency loss is eliminated, the number of transmission accessories is reduced, and production cost is saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of hot air box equipment, and in particular relates to a modular fan for a hot air circulation rotary screen drying machine. Background Art

[0002] In the textile industry, hot air circulation rotary screen dryers are frequently used to dry fabrics, especially non-woven fabrics processed by hydroentanglement. The fan impeller is an essential component for hot air circulation. The fan impeller is typically installed inside a housing, facing the rotary screen drum. The impeller shaft extends out of the housing and is driven by a motor and belt mounted there. However, this system has the following drawbacks: 1. Belt drive not only suffers from low transmission efficiency, slippage, and a short belt life, but also requires numerous accessories such as pulleys, tensioners, and belts. The entire hot air circulation rotary screen dryer requires multiple sets of fan impellers, resulting in high overall costs. 2. During repair and routine maintenance, the fan impeller and its power components are relatively loosely mounted on the housing, requiring individual removal for inspection and repair, making this operation cumbersome, labor-intensive, and time-consuming.

[0003] In view of the above situation, it is necessary to design a fan impeller structure for a hot air circulation rotary screen dryer that is simple in structure, low in cost, has no transmission efficiency loss, and can form a modular disassembly structure. To this end, the applicant has made a useful design, and the technical solution to be introduced below was developed in this context. Utility Model Content

[0004] The task of the utility model is to provide a modular fan for a hot air circulation rotary screen drying machine, which helps to improve the connection and installation structure of the fan impeller and the transmission device, making the overall modular and easy to disassemble and repair, thereby eliminating transmission efficiency loss and saving production costs.

[0005] The task of the utility model is accomplished in this way: a modular fan for a hot air circulation rotary screen dryer includes a mounting plate, a motor fixedly mounted on one side of the mounting plate, and a fan impeller arranged on the other side of the mounting plate and directly connected to the motor. A motor mounting platform is formed on the side where the mounting plate and the motor are mounted. The motor is fixed on the motor mounting platform. A connecting hole is provided on the mounting plate. A transmission disk is passed through the connecting hole. One end of the transmission disk is fixedly connected to the motor, and the other end is fixedly connected to the fan impeller. A flange edge is formed around the mounting plate, and the flange edge is used to be fixed to the chassis of the hot air circulation rotary screen dryer.

[0006] In a specific embodiment of the present invention, the upper surface of the motor mounting platform is perpendicular to the mounting plate and a motor fixing hole is provided on the upper surface of the motor mounting platform. The motor is fixed to the motor fixing hole through a motor seat and screws.

[0007] In another specific embodiment of the present invention, one side of the motor mounting platform is welded and fixed to the mounting plate, and a reinforcing plate is welded on both sides of the motor mounting platform respectively. One side of the reinforcing plate is welded to the mounting plate and forms an inverted trapezoidal structure with the motor mounting platform.

[0008] In another specific embodiment of the present invention, a motor shaft is formed at the position of the motor opposite to the connecting hole, a connecting shaft is formed in the middle of the transmission disk, a connecting shaft hole is opened on the connecting shaft, the connecting shaft passes through the connecting hole and is sleeved on the motor shaft through the connecting shaft hole, and the two are connected by a flat key, the connecting shaft hole is formed with a fixed step at a position close to the end of the motor shaft, a pressure plate is provided at the position of the fixed step, and the pressure plate is fixed to the end of the motor shaft by a pressure plate screw.

[0009] In another specific embodiment of the present invention, a group of impeller blades are arranged at intervals around the fan impeller, a circle of fan impeller fixing screws are arranged at intervals on a side of the fan impeller facing the transmission disk, and the transmission disk is provided with transmission disk threaded holes at positions corresponding to the fan impeller fixing screws. The fan impeller is connected and fixed to the transmission disk by screwing the fan impeller fixing screws and the transmission disk threaded holes.

[0010] In another specific embodiment of the present invention, an insulation layer is fixed at a position between the transmission disk and the mounting plate. The insulation layer is welded and fixed to the mounting plate and a gap is formed between the transmission disk. The insulation layer has an insulation layer through hole for the connecting shaft to pass through at a position corresponding to the connecting hole.

[0011] In a further specific embodiment of the present invention, a sealing ring, a sealing ring pressure plate and a heat sink are sequentially sleeved on the connecting shaft from left to right, and the sealing ring, sealing ring pressure plate and heat sink are respectively arranged at positions between the mounting plate and the motor, and the sealing ring is tightly fitted with the connecting shaft, and there is a gap between the sealing ring pressure plate and the connecting shaft, and the sealing ring is pressed against the mounting plate by a set of sealing ring pressure plate fixing screws, and the heat sink is fixed to the connecting shaft in the form of a clamp.

[0012] In a more specific embodiment of the present invention, a protective cover is further provided between the mounting plate and the motor. The protective cover is provided around the connecting hole and is fixed to the mounting plate with screws.

[0013] After adopting the above structure, the utility model has the following beneficial effects: first, since the fan impeller and the motor are installed on the mounting plate to form a modular structure, they can be disassembled as a whole, which effectively reduces the difficulty of disassembly and assembly, and is very convenient for disassembly and maintenance; second, since the fan impeller and the motor are directly driven, the transmission efficiency loss is effectively eliminated, the number of transmission accessories is reduced, and the production cost is saved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of an embodiment of the present utility model.

[0015] In the figure: 1. Mounting plate, 11. Motor mounting platform, 111. Motor fixing hole, 12. Connecting hole, 13. Reinforcement plate, 14. Flange; 2. Motor, 21. Motor base, 22. Motor shaft; 3. Fan impeller, 31. Fan impeller fixing screw, 32. Impeller blade; 4. Drive plate, 41. Connecting shaft, 42. Connecting shaft hole, 43. Fixing step, 44. Pressure plate, 441. Pressure plate screw, 45. Drive plate threaded hole; 5. Insulation layer, 51. Insulation layer through hole; 6. Sealing ring; 7. Sealing ring pressure plate, 741. Sealing ring pressure plate fixing screw; 8. Heat sink; 9. Protective cover. DETAILED DESCRIPTION

[0016] The specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings. However, the description of the embodiments does not limit the technical solution. Any changes in form rather than substance based on the concept of the present invention should be regarded as within the scope of protection of the present invention.

[0017] In the following description, all concepts related to directionality or orientation, such as up, down, left, right, front and back, are based on Figure 1 The positions shown are for reference only and should not be understood as a special limitation on the technical solution provided by the present invention.

[0018] See also Figure 1 The utility model relates to a modular fan for a hot air circulation rotary screen dryer, comprising a mounting plate 1, a motor 2 fixedly mounted on one side of the mounting plate 1, and a fan impeller 3 arranged on the other side of the mounting plate 1 and directly connected to the motor 2. A motor mounting platform 11 is formed on one side of the mounting plate 1 where the motor 2 is mounted. The motor 2 is fixed on the motor mounting platform 11. A connecting hole 12 is provided on the mounting plate 1. A transmission disk 4 is passed through the connecting hole 12. One end of the transmission disk 4 is fixedly connected to the motor 2, and the other end is fixedly connected to the fan impeller 3. A flange edge 14 is formed around the mounting plate 1, and the flange edge 14 is used to be fixed to the chassis of the hot air circulation rotary screen dryer.

[0019] Furthermore, the upper surface of the motor mounting platform 11 is perpendicular to the mounting plate 1 and is provided with a motor fixing hole 111. The motor 2 is screwed to the motor fixing hole 111 via a motor base 21. One side of the motor mounting platform 11 is welded to the mounting plate 1. A reinforcement plate 13 is welded to each side of the motor mounting platform 11. One side of the reinforcement plate 13 is welded to the mounting plate 1, forming an inverted ladder-shaped structure with the motor mounting platform 11.

[0020] Furthermore, the motor 2 is provided with a motor shaft 22 at a position opposite to the connecting hole 12, and a connecting shaft 41 is provided in the middle of the transmission disk 4. A connecting shaft hole 42 is provided on the connecting shaft 41. The connecting shaft 41 passes through the connecting hole 12 and is sleeved on the motor shaft 22 through the connecting shaft hole 42. The two are connected by a flat key. The connecting shaft hole 42 is provided with a fixed step 43 at a position close to the end of the motor shaft 22. A pressure plate 44 is provided at the position of the fixed step 43. The pressure plate 44 is fixed to the end of the motor shaft 22 by a pressure plate screw 441. A sealing ring 6, a sealing ring pressure plate 7 and a heat sink 8 are sequentially sleeved on the aforementioned connecting shaft 41 from left to right. The aforementioned sealing ring 6, sealing ring pressure plate 7 and heat sink 8 are respectively arranged at the positions between the mounting plate 1 and the motor 2. The aforementioned sealing ring 6 is tightly fitted with the connecting shaft 41. There is a gap between the aforementioned sealing ring pressure plate 7 and the connecting shaft 41, and the sealing ring 6 is pressed against the mounting plate 1 by a set of sealing ring pressure plate fixing screws 71. The aforementioned heat sink 8 is fixed to the connecting shaft 41 in the form of a hoop.

[0021] In this embodiment, a group of impeller blades 32 are arranged at intervals around the aforementioned fan impeller 3, and a circle of fan impeller fixing screws 31 are arranged at intervals on the side of the aforementioned fan impeller 3 facing the transmission disk 4. The aforementioned transmission disk 4 is respectively provided with transmission disk threaded holes 45 at positions corresponding to the fan impeller fixing screws 31. The aforementioned fan impeller 3 is connected and fixed to the transmission disk 4 by screwing the fan impeller fixing screws 31 and the transmission disk threaded holes 45.

[0022] Furthermore, an insulation layer 5 is fixed at a position between the aforementioned transmission disk 4 and the mounting plate 1. The aforementioned insulation layer 5 is welded and fixed on the mounting plate 1 and a gap is formed between the transmission disk 4. The aforementioned insulation layer 5 has an insulation layer through hole 51 for the connecting shaft 41 to pass through at a position corresponding to the connecting hole 12.

[0023] A protective cover 9 is further provided between the aforementioned mounting plate 1 and the motor 2 . The aforementioned protective cover 9 is provided around the connecting hole 12 and is fixed to the mounting plate 1 with screws.

[0024] Please continue reading Figure 1The aforementioned fan impeller 3 and motor 2 are completely modularly integrated on the aforementioned mounting plate 1. When maintenance is required, they can be directly removed from the chassis of the hot air circulation rotary screen dryer through the flange edge 14 on the aforementioned mounting plate 1. After removal, each component can be inspected and repaired. The operation is convenient and fast, saving labor and time, and high efficiency. When hot air circulation is required through the aforementioned fan impeller 3, the aforementioned motor 2 is driven to work, and the aforementioned motor shaft 22 directly drives the aforementioned fan impeller 3 to rotate through the connecting shaft 41 and the transmission disk 4. The aforementioned connecting shaft 41 is sealed with the sealing ring 6 during rotation to prevent hot air from overflowing from the connecting hole 12. The heat on the aforementioned connecting shaft 41 is dissipated through the heat sink 8 to effectively prevent the heat from causing adverse effects on the motor 2. The aforementioned thermal insulation layer 5 isolates the heat in the chassis of the hot air circulation rotary screen dryer from the mounting plate 1, thereby preventing heat from overflowing and affecting the motor.

Claims

1. A modular fan for a hot air circulation rotary screen drying machine, characterized by: The invention comprises a mounting plate (1), a motor (2) fixedly mounted on one side of the mounting plate (1), and a fan impeller (3) arranged on the other side of the mounting plate (1) and directly connected to the motor (2); a motor mounting platform (11) is formed on the side where the mounting plate (1) and the motor (2) are mounted; the motor (2) is fixed on the motor mounting platform (11); a connecting hole (12) is provided on the mounting plate (1); a transmission disc (4) is passed through the connecting hole (12); one end of the transmission disc (4) is fixedly connected to the motor (2) and the other end is fixedly connected to the fan impeller (3); a flange edge (14) is formed around the mounting plate (1); the flange edge (14) is used to be fixed to the chassis of the hot air circulation rotary screen drying machine.

2. The modular fan for a hot air circulation rotary screen drying machine according to claim 1, characterized in that: The upper surface of the motor mounting platform (11) is perpendicular to the mounting plate (1) and a motor fixing hole (111) is provided on the upper surface of the motor mounting platform (11). The motor (2) is fixed to the motor fixing hole (111) via a motor seat (21) with screws.

3. The modular fan for a hot air circulation rotary screen drying machine according to claim 1, characterized in that: One side of the motor mounting platform (11) is welded to the mounting plate (1), and a reinforcing plate (13) is welded to both sides of the motor mounting platform (11). One side of the reinforcing plate (13) is welded to the mounting plate (1) to form an inverted ladder-shaped structure with the motor mounting platform (11).

4. The modular fan for a hot air circulation rotary screen drying machine according to claim 1, characterized in that: The motor (2) is provided with a motor shaft (22) at a position opposite to the connecting hole (12), and a connecting shaft (41) is provided in the middle of the transmission disc (4). A connecting shaft hole (42) is provided on the connecting shaft (41). After passing through the connecting hole (12), the connecting shaft (41) is sleeved on the motor shaft (22) through the connecting shaft hole (42). The two are connected by a flat key. The connecting shaft hole (42) is provided with a fixing step (43) at a position close to the end of the motor shaft (22). A pressure plate (44) is provided at the position of the fixing step (43). The pressure plate (44) is fixed to the end of the motor shaft (22) through a pressure plate screw (441).

5. The modular fan for a hot air circulation rotary screen drying machine according to claim 1, characterized in that: A group of impeller blades (32) are arranged at intervals around the fan impeller (3); a circle of fan impeller fixing screws (31) are arranged at intervals on a side of the fan impeller (3) facing the transmission disc (4); the transmission disc (4) is provided with transmission disc threaded holes (45) at positions corresponding to the fan impeller fixing screws (31); the fan impeller (3) is connected and fixed to the transmission disc (4) by screwing the fan impeller fixing screws (31) and the transmission disc threaded holes (45).

6. The modular fan for a hot air circulation rotary screen drying machine according to claim 4, characterized in that: A thermal insulation layer (5) is fixed at a position between the transmission disc (4) and the mounting plate (1); the thermal insulation layer (5) is welded and fixed to the mounting plate (1) and forms a gap with the transmission disc (4); and the thermal insulation layer (5) has a thermal insulation layer through hole (51) for the connecting shaft (41) to pass through at a position corresponding to the connecting hole (12).

7. The modular fan for a hot air circulation rotary screen drying machine according to claim 4, characterized in that: A sealing ring (6), a sealing ring pressing plate (7) and a heat sink (8) are sequentially sleeved on the connecting shaft (41) from left to right. The sealing ring (6), the sealing ring pressing plate (7) and the heat sink (8) are respectively arranged at positions between the mounting plate (1) and the motor (2). The sealing ring (6) is tightly matched with the connecting shaft (41). There is a gap between the sealing ring pressing plate (7) and the connecting shaft (41). The sealing ring (6) is pressed against the mounting plate (1) by a set of sealing ring pressing plate fixing screws (71). The heat sink (8) is fixed to the connecting shaft (41) in the form of a hoop.

8. The modular fan for a hot air circulation rotary screen drying machine according to claim 1, characterized in that: A protective cover (9) is also provided between the mounting plate (1) and the motor (2); the protective cover (9) is provided around the connection hole (12) and is fixed to the mounting plate (1) with screws.

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