Novel permanent magnet variable frequency tension winch

Abstract

The utility model relates to winch technical field especially relates to a new permanent magnet frequency conversion tension winch, including base and reel, the one side of base is provided with the explosion -proof housing, the explosion -proof housing includes the first casing and second casing of integral connection, be provided with drive assembly in first casing and second casing, drive assembly includes the motor of installation in first casing, the drive end fixed mounting of motor has output shaft, be provided with speed reducer on output shaft, install electromagnetic brake in second casing. The utility model electromagnetic brake and permanent magnet motor adopt integral type arrangement, and the electromagnetic brake is installed in the tail shaft end opposite of motor output shaft, is closed in the explosion -proof housing, and the electromagnetic brake adopts magnetic force and is attracted and is disconnected, instantaneous response, action has no delay, no external speed reducer, and the permanent magnet motor is directly connected to the reel, and transmission efficiency greatly increases, can make winch rope or rope release speed reach maximization.

Description

Technical Field

[0001] This utility model relates to the field of winch technology, and in particular to a novel permanent magnet variable frequency tensioning winch. Background Technology

[0002] With the continuous development of society and the continuous progress of science and technology, the technology related to winches is also constantly improving. In the existing technology, the permanent magnet variable frequency tensioning winch only relies on the motor and the external reducer to be connected through the coupling. The external drum brake is installed around the coupling and acts on the output shaft of the motor, which reduces the transmission efficiency. The reducer and the winch drum are connected in an "L" shape. This arrangement is large in size and occupies a lot of space. The drum brake uses an electro-hydraulic actuator to realize the functions of opening and holding the brake. There is a time delay in opening and holding the brake, resulting in a sluggish response. The external reducer causes the winch to be slow in winding or unwinding the rope. Utility Model Content

[0003] The purpose of this utility model is to solve the following shortcomings in the prior art. In the prior art, the permanent magnet variable frequency tensioning winch only relies on the motor and the external reducer to be connected through the coupling. The external drum brake is installed around the coupling and acts on the output shaft of the motor, which reduces the transmission efficiency. The reducer and the winch drum are connected in an "L" shape. This arrangement is large in size and occupies a lot of space. The drum brake uses an electro-hydraulic actuator to realize the functions of opening and holding the brake. There is a time delay in opening and holding the brake, resulting in a sluggish response. The external reducer causes the winch to have a slow rope winding or unwinding speed. Therefore, a new type of permanent magnet variable frequency tensioning winch is proposed.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A novel permanent magnet variable frequency tensioning winch includes a base and a drum. An explosion-proof housing is provided on one side of the base. The explosion-proof housing includes a first housing and a second housing integrally connected. A drive assembly is provided inside the first housing and the second housing. The drive assembly includes a motor installed in the first housing. An output shaft is fixedly installed on the drive end of the motor. A reducer is provided on the output shaft. An electromagnetic brake is installed inside the second housing.

[0005] Preferably, the output end of the reducer is connected to the drum via multiple first bolts, and the output end of the reducer has multiple through holes for connecting the first bolts.

[0006] Preferably, a bracket is fixedly connected to the first housing, and the bracket is connected to the base by a plurality of second bolts. The base has a plurality of mounting holes for connecting the second bolts.

[0007] Preferably, the electromagnetic brake is installed at the tail end opposite to the output shaft, and the electromagnetic brake is engaged and disengaged by magnetic force.

[0008] Preferably, a plurality of heat dissipation fins are fixedly installed on the outside of the first housing, and the plurality of heat dissipation fins are arranged in a ring array.

[0009] Preferably, two anti-slip pads are fixedly installed on the bottom of the base, and each anti-slip pad is provided with anti-slip texture.

[0010] Compared with the prior art, the beneficial effects of this utility model are: 1. The electromagnetic brake and permanent magnet motor are integrated into one unit. The electromagnetic brake is installed at the tail end of the motor output shaft and is enclosed in an explosion-proof housing. The electromagnetic brake uses magnetic attraction and disengagement, with instantaneous response and no delay in action. 2. No external reducer is required. The permanent magnet motor is directly connected to the winding, which greatly increases the transmission efficiency and allows the winch to maximize the speed of rope winding or unwinding. The fastest speed can reach three times the speed of existing frequency conversion winches. 3. The integrated winch adopts an integrated layout, without external reducer or external brake, with a compact structure, small size, and small space occupation, making it more suitable for the narrow space occupied by tensioning devices for belt conveyors. 4. The permanent magnet variable frequency winch has a fast response speed for opening or holding the brake, and a fast rope winding or unwinding speed. It can make the belt conveyor operate under the lowest tension, reduce the wear and aging of other structures of the entire belt conveyor, and greatly extend the service life of each structure. When the belt conveyor starts under heavy load, the tension drops sharply and can quickly absorb the tension to ensure the smooth and reliable operation of the belt conveyor. When the belt conveyor stops under heavy load, if the tension is too high, it can quickly release the tension to ensure production safety. Attached Figure Description

[0011] Figure 1 This is a front structural diagram of a novel permanent magnet variable frequency tensioning winch proposed in this utility model; Figure 2 This is a partial frontal internal structure diagram of a novel permanent magnet variable frequency tensioning winch proposed in this utility model; Figure 3 This is a side internal structure diagram of a novel permanent magnet variable frequency tensioning winch proposed in this utility model; Figure 4 This is a partial side view of the internal structure of a novel permanent magnet variable frequency tensioning winch proposed in this utility model. Figure 5 This is a partial internal structural diagram of the first and second shells in this utility model.

[0012] In the diagram: 1. Base, 2. First housing, 3. Drum, 4. Second housing, 5. Electromagnetic brake, 6. Reducer, 7. First bolt, 8. Through hole, 9. Second bolt, 10. Bracket, 11. Heat dissipation fins, 12. Output shaft, 13. Anti-slip pad. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0014] The terms used in this utility model, such as "upper", "lower", "left", "right", "middle" and "one", are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model.

[0015] Reference Figures 1-5 A novel permanent magnet variable frequency tensioning winch includes a base 1 and a drum 3. An explosion-proof housing is provided on one side of the base 1. The explosion-proof housing includes a first housing 2 and a second housing 4 integrally connected. A drive assembly is provided inside the first housing 2 and the second housing 4. The drive assembly includes a motor installed in the first housing 2. An output shaft 12 is fixedly installed on the drive end of the motor. A reducer 6 is provided on the output shaft 12. An electromagnetic brake 5 is installed inside the second housing 4.

[0016] The output end of the reducer 6 is connected to the drum 3 by multiple first bolts 7. The output end of the reducer 6 has multiple through holes 8 for connecting the first bolts 7. The drum 3 and the reducer 6 are connected together by the first bolts 7, so that the subsequent power can be transmitted from the reducer 6 to the drum 3, driving the drum 3 to rotate.

[0017] A bracket 10 is fixedly connected to the first housing 2. The bracket 10 is connected to the base 1 by multiple second bolts 9. The base 1 has multiple mounting holes for connecting the second bolts 9. The multiple second bolts 9 are used to achieve a stable installation of the explosion-proof housing and the base 1.

[0018] The electromagnetic brake 5 is installed at the tail end opposite to the output shaft 12. The electromagnetic brake 5 uses magnetic force to engage and disengage. Multiple heat dissipation fins 11 are fixedly installed on the outside of the first housing 2. The multiple heat dissipation fins 11 are arranged in a ring array. The multiple heat dissipation fins 11 are used for heat dissipation when the motor is working to ensure the normal operation of the motor.

[0019] Two anti-slip pads 13 are fixedly installed on the bottom of the base 1. Each anti-slip pad 13 is provided with anti-slip texture. The anti-slip texture of the anti-slip pad 13 can enhance the stability of the winch when it is placed and prevent it from sliding.

[0020] In this invention, when the motor starts, the power of the motor is transmitted to the reducer 6 through the output shaft 12. After the reducer 6 reduces speed and increases torque, the power is transmitted from the output end of the reducer 6 to the drum 3 through the first bolt 7, driving the drum 3 to rotate, thereby realizing the action of winding or unwinding the rope.

[0021] The electromagnetic brake 5 is installed at the tail end of the output shaft 12 and works by magnetic attraction and disengagement. When braking is required, the electromagnetic brake 5 uses magnetic force to quickly brake the output shaft 12, thereby stopping the drum 3 from rotating. When braking is required, the electromagnetic brake 5 disconnects the magnetic force, and the output shaft 12 can rotate normally, driving the drum 3 to work.

[0022] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "connection", "linking", "fixing", etc., should be interpreted broadly. For example, they can refer to fixed connection, detachable connection, or integral connection; they can refer to mechanical connection or electrical connection; they can refer to direct connection or indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0023] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A novel permanent magnet variable frequency tensioning winch, comprising a base (1) and a drum (3), characterized in that, An explosion-proof housing is provided on one side of the base (1). The explosion-proof housing includes a first housing (2) and a second housing (4) that are integrally connected. A drive assembly is provided inside the first housing (2) and the second housing (4). The drive assembly includes a motor installed inside the first housing (2). An output shaft (12) is fixedly installed on the drive end of the motor. A reducer (6) is provided on the output shaft (12). An electromagnetic brake (5) is installed inside the second housing (4).

2. The novel permanent magnet variable frequency tensioning winch according to claim 1, characterized in that, The output end of the reducer (6) is connected to the drum (3) by a plurality of first bolts (7), and the output end of the reducer (6) is provided with a plurality of through holes (8) for connecting the first bolts (7).

3. The novel permanent magnet variable frequency tensioning winch according to claim 1, characterized in that, A bracket (10) is fixedly connected to the first housing (2). The bracket (10) is connected to the base (1) by a plurality of second bolts (9). The base (1) has a plurality of mounting holes for connecting the second bolts (9).

4. A novel permanent magnet variable frequency tensioning winch according to claim 1, characterized in that, The electromagnetic brake (5) is installed at the tail end opposite to the output shaft (12), and the electromagnetic brake (5) is engaged and disengaged by magnetic force.

5. A novel permanent magnet variable frequency tensioning winch according to claim 1, characterized in that, Multiple heat dissipation fins (11) are fixedly installed on the outside of the first housing (2), and the multiple heat dissipation fins (11) are arranged in a ring array.

6. A novel permanent magnet variable frequency tensioning winch according to claim 1, characterized in that, Two anti-slip pads (13) are fixedly installed on the bottom of the base (1), and each anti-slip pad (13) is provided with anti-slip texture.

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