Special permanent magnet direct drive motor for pulper

Abstract

The utility model discloses a special permanent magnet direct drive motor for a pulper, which comprises a drive motor body, and is characterized in that an output shaft of the drive motor body is connected with an input shaft of the pulper through a coupler, a waterproof assembly for waterproofing the drive motor body is arranged on the surface of the coupler, and the drive motor body is arranged in the waterproof assembly. The driving motor body is a permanent magnet direct drive motor, the power density of the motor is higher, compared with a traditional three-phase asynchronous motor, the size of the motor is much smaller, equipment is lighter, the rack cost is saved, a transmission device and intermediate links of the motor are reduced, and the permanent magnet direct drive motor is simpler in structure, more stable in operation, smaller in operation loss and lower in noise. Compared with the prior art, the direct-drive motor has the advantages that the motor efficiency is higher, meanwhile, the energy conversion efficiency is higher, energy waste is reduced, the purposes of energy conservation and emission reduction are achieved, in addition, the simple structure means lower maintenance cost, and the direct-drive motor has higher economic benefits.

Description

Technical Field

[0001] The utility model belongs to the technical field of driving motor body equipment, and in particular relates to a permanent magnet direct-drive motor dedicated to a pulper. Background Art

[0002] Pulper is an important pulping equipment, which is widely used in papermaking, textile, chemical industry and other industries. Its main function is to crush, mix and disperse the raw materials to obtain pulp suitable for subsequent process treatment. In addition, in the textile industry, pulper is also used to prepare textile pulp. In the chemical industry, pulper can be used to prepare various chemical pulps, such as coatings, paints, etc. The working principle of pulper is to use high-speed rotating blades to crush the raw materials, and at the same time, the crushed pulp is mixed and dispersed through the disperser.

[0003] A pulper is usually composed of main components such as a motor, a coupling, a rotor and a container.

[0004] Commonly used transmission devices are pulleys, chains or gears, which have low transmission efficiency, difficult and high maintenance costs, and large equipment installation volume. Utility Model Content

[0005] The utility model aims to provide a permanent magnet direct drive motor dedicated to a pulper, so as to solve the technical defects of low transmission efficiency, high maintenance and installation cost and large occupied space proposed in the background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A permanent magnet direct drive motor for a pulper comprises a drive motor body, an output shaft of the drive motor body is connected to an input shaft of the pulper via a coupling, and a waterproof component for waterproofing the drive motor body is arranged on the surface of the coupling.

[0008] As a further solution of the utility model, the waterproof component includes two groups of semi-disc-shaped water-shedding covers, the two groups of water-shedding covers are provided with coupling surfaces and are connected by bolts, and the output shaft surface of the drive motor body is provided with a water-shedding disk.

[0009] As a further solution of the utility model, a front flange is fixedly mounted on the outer circumferential surface of the driving end of the driving motor body, and the front flange is fixedly mounted to the flange of the pulper by fixing bolts.

[0010] As a further solution of the utility model, the drive motor body is a permanent magnet direct drive motor, and the output shaft of the drive motor body is a round head shaft with a keyway.

[0011] Compared with the prior art, the permanent magnet direct drive motor for pulping machine provided by the utility model has the following beneficial effects:

[0012] 1. The utility model sets a driving motor body, wherein the driving motor body is a permanent magnet direct-drive motor. The motor has a higher power density and is much smaller in size than a traditional three-phase asynchronous motor. The equipment is lighter and saves frame costs. The motor reduces transmission devices and intermediate links. The permanent magnet direct-drive motor has a simpler structure, smoother operation, smaller motor operation loss, lower noise, higher motor efficiency and higher energy conversion efficiency, which reduces energy waste and is conducive to achieving the goal of energy conservation and emission reduction. In addition, the simple structure also means lower maintenance costs, making the direct-drive motor have higher economic benefits.

[0013] 2. The utility model uses the arrangement of the water-throwing cover and the front flange. Even if oil or water leaks from the front section of the pulper, it will be discharged through the coupling water-throwing cover. The remaining water or oil will be discharged through the drainage groove on the front flange of the motor and will not reach the motor position, thereby ensuring that the motor has a safe working environment and extending the life of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings required for use in the embodiment will be briefly introduced below. Obviously, the drawings described below are only examples of the embodiment of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0016] Figure 2 It is a schematic cross-sectional structural diagram of a driving motor in an embodiment of the utility model.

[0017] Reference numerals:

[0018] 1. Drive motor body; 2. Coupling; 3. Bolts; 4. Water-sprinkling cover; 5. Screws; 6. Water-sprinkling tray; 7. Front flange; 8. O-ring. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the embodiment of the utility model more clear, the embodiment of the utility model is further described in detail below in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0020] In the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the embodiments of the present invention.

[0021] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, an integral connection, or a detachable connection; it can be the internal connection of two components; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0022] See attached Figure 1-2 As shown, an embodiment of the utility model is a permanent magnet direct drive motor dedicated to a pulper, comprising a drive motor body 1, wherein the output shaft of the drive motor body 1 is connected to the input shaft of the pulper via a coupling 2, a surface of the coupling 2 is provided with a waterproof component for waterproofing the drive motor body 1, the drive motor body 1 is a permanent magnet direct drive motor, the output shaft of the drive motor body 1 is a round head shaft with a keyway, wherein a temperature sensor PT100 is provided inside the drive motor body 1, and a signal output end of the temperature sensor PT100 is connected to a signal input end of a control system of the drive motor body 1 via a wire.

[0023] When the temperature of the drive motor body 1 rises to a temperature it can withstand, the power supply is automatically disconnected to protect the safe operation of the motor stator and extend the service life of the motor. Through the setting of the drive motor body 1, in which the drive motor body 1 uses a permanent magnet direct-drive motor, the motor has a higher power density and is much smaller in size than a traditional three-phase asynchronous motor. The equipment is lighter and saves frame costs. The motor reduces the transmission device and intermediate links. The permanent magnet direct-drive motor has a simpler structure and runs more smoothly. The motor has less operating loss and lower noise. The motor is more efficient and has higher energy conversion efficiency, which reduces energy waste and is conducive to achieving the goal of energy conservation and emission reduction. In addition, the simple structure also means lower maintenance costs, making the direct-drive motor have higher economic benefits.

[0024] The waterproof assembly includes two sets of semi-disc-shaped water-spinning covers 4, which are sleeved on the surface of the coupling 2 and connected by bolts 3. The surface of the output shaft of the drive motor body 1 is sleeved with a water-spinning plate 6. Even if oil or water leaks from the front section of the pulper, it will be discharged through the coupling 2 water-spinning cover 4.

[0025] A front flange 7 is fixedly installed on the outer cylindrical surface of the driving end of the driving motor body 1, and an O-ring 8 is arranged between the front flange 7 and the driving motor body 1. The front flange 7 is fixedly installed with the flange of the pulper by fixing bolts 3, wherein a drainage groove is opened on the surface of the front flange 7, and if the water-throwing cover 4 is not successfully thrown out, water or oil will be discharged through the drainage groove on the front flange 7 of the motor and will not reach the motor position, thereby ensuring that the motor has a safe working environment and extending the life of the motor.

[0026] The front flange 7 of the motor is installed on the connecting flange of the pulper through the front flange 7 connecting the fixing screws 5, mainly for installing the coupling 2 and the coupling 2 water-spinning cover 4. Even if there is oil or water leakage in the front section of the pulper, it will be discharged through the coupling 2 water-spinning cover 4, and the remaining water or oil will be discharged through the drainage groove on the front flange 7 of the motor and will not reach the motor position, ensuring that the motor has a safe working environment and extending the life of the motor. In order to ensure the stability of the connection with the coupling 2 and the reliability of the transmission, the shaft head of the output shaft of the permanent magnet synchronous motor is designed as a round head shaft with a keyway.

[0027] The above shows and describes the basic principles of the present invention. The above are only preferred embodiments of the present invention and are not intended to limit the present invention. The above embodiments and descriptions in the specification are only intended to illustrate the principles of the present invention. Without departing from the scope of the present invention, any modifications, equivalent substitutions and improvements made within the spirit and scope of the present invention should be included in the protection scope of the present invention.

Claims

1. A permanent magnet direct drive motor for a pulper, comprising a drive motor body (1), characterized in that: The output shaft of the driving motor body (1) is connected to the input shaft of the pulper via a coupling (2); a waterproof component for waterproofing the driving motor body (1) is provided on the surface of the coupling (2).

2. A permanent magnet direct drive motor for a pulper according to claim 1, characterized in that: The waterproof assembly comprises two sets of semi-disc-shaped water-spinning covers (4), the two sets of water-spinning covers (4) being sleeved on the surface of the coupling (2) and connected via bolts (3), and a water-spinning disc (6) being sleeved on the surface of the output shaft of the drive motor body (1).

3. A permanent magnet direct drive motor for a pulper according to claim 2, characterized in that: A front flange (7) is fixedly mounted on the outer circumferential surface of the driving end of the driving motor body (1); the front flange (7) is fixedly mounted to the flange of the pulper via fixing bolts (3).

4. A permanent magnet direct drive motor for pulping machine according to claim 3, characterized in that: The drive motor body (1) is a permanent magnet direct drive motor, and the output shaft of the drive motor body (1) is a round head shaft with a keyway.

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