Special high-voltage permanent magnet synchronous motor for direct-drive pulper

Abstract

The utility model discloses a special high-voltage permanent magnet synchronous motor for a direct-drive pulper, which comprises a protection assembly, a high-voltage permanent magnet synchronous motor body is mounted on the protection assembly, and an output shaft of the high-voltage permanent magnet synchronous motor body is fixedly connected with a rotor at the bottom of a pulper groove body; wherein the protection assembly is installed on the supporting component, an output shaft of a high-voltage permanent magnet synchronous motor body is directly and fixedly connected with a rotor at the bottom of a pulper groove body, the motor directly drives the rotor to rotate blades of a stirrer, the running loss of the motor is smaller, transmission loss caused by a traditional transmission device can be reduced, and the energy utilization rate is increased; the high-voltage permanent magnet synchronous motor is simple in installation, reduces transmission parts, reduces the probability of mechanical faults, is convenient to maintain, reduces the production cost, and further improves the use safety and stability of the high-voltage permanent magnet synchronous motor body through arranging the motor base between the motor fixing plate and the high-voltage permanent magnet synchronous motor body.

Description

Technical Field

[0001] The utility model belongs to the technical field of motors for pulpers, and in particular relates to a high-voltage permanent magnet synchronous motor dedicated to a direct-drive pulper. Background Art

[0002] A pulper is a traditional pulping machine, primarily used for disintegrating waste paper and pulp sheets. It is widely used in the papermaking, textile, and chemical industries. When the pulper is operating, the motor is started, the impeller begins to rotate, and the pulp in the trough is drawn in along the axis and ejected from the circumference at high speed, forming a violent turbulent circulation. The tearing of the impeller blades and the interaction of pulp layers at different speeds create a tremendous friction effect, which strongly decomposes and separates the fibers in the wet state. Simultaneously, the fiber bundles rub against each other in the gap between the impeller and the screen plate, increasing the fiberization effect.

[0003] High-pressure pulpers are usually composed of main components such as electric motors, transmission devices, agitator blades and containers. The commonly used transmission device is a reducer, which has low transmission efficiency, high unit energy consumption, large equipment installation volume, and is difficult to maintain. The production cost is high, especially when it comes to gears and reducers, which have a short service life. Utility Model Content

[0004] In order to solve the above technical problems, the purpose of the present utility model is to provide a high-voltage permanent magnet synchronous motor dedicated to a direct-drive pulper, so as to solve the technical defects of the existing transmission device with low transmission efficiency, large equipment installation volume, complicated maintenance and high production cost when it is a belt drive.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a high-voltage permanent magnet synchronous motor dedicated to a direct-drive pulper, comprising a protective component, on which a high-voltage permanent magnet synchronous motor body is mounted, and the output shaft of the high-voltage permanent magnet synchronous motor body is fixedly connected to the rotor at the bottom of the pulper trough; wherein the protective component is mounted on a supporting component; and an oil and water-proof part is mounted on the high-voltage permanent magnet synchronous motor body.

[0006] As a further solution of the present utility model, the protective assembly includes a protective shell, a front flange is fixedly installed on the upper part of the protective shell, a rear flange is fixedly installed on the lower part of the protective shell, the high-voltage permanent magnet synchronous motor body is arranged inside the protective shell and fixedly installed on the front flange, and the output shaft of the high-voltage permanent magnet synchronous motor body passes through the front flange and extends to the outside of the protective shell;

[0007] A bearing is fixedly mounted on the front flange, and the output shaft of the high-voltage permanent magnet synchronous motor body is fixedly mounted in the inner ring of the bearing.

[0008] As a further solution of the present invention, the supporting component is a motor base, the protective shell is detachably mounted on the top of the motor base, a motor fixing plate is welded to the lower end of the motor base, and the motor fixing plate is detachably mounted on the mounting platform.

[0009] As a further solution of the present invention, the rear flange is fixedly connected to the top of the motor base by a first mounting screw; and the motor fixing plate is fixedly mounted on the top of the mounting platform by a second mounting screw.

[0010] As a preferred solution of the present invention, the oil and water prevention component is a water-swinging plate, which is fixedly mounted on the output shaft of the high-voltage permanent magnet synchronous motor body and is located above the bearing.

[0011] As a further preferred embodiment of the present invention, the center points of the output shaft of the high-voltage permanent magnet synchronous motor body, the pulper tank bottom rotor, the front flange, the rear flange and the motor base are all located on the same central axis.

[0012] Compared with the prior art, the high-voltage permanent magnet synchronous motor for a direct-drive pulper provided by the present invention has the following beneficial effects:

[0013] 1. In the utility model, the output shaft of the high-voltage permanent-magnet synchronous motor body is directly fixedly connected to the rotor at the bottom of the pulper tank, and the motor directly drives the rotor to rotate the agitator blades. The original three-stage transmission is optimized and improved to a one-stage transmission, and the motor operation loss is smaller, which can reduce the transmission loss caused by the traditional transmission device and improve the energy utilization rate. In addition, the installation is simple, the transmission part is reduced, the probability of mechanical failure is reduced, the service life is increased, and maintenance is convenient, which reduces the production cost. In addition, a motor base is provided between the motor fixing plate and the high-voltage permanent-magnet synchronous motor body, thereby further increasing the safety and stability of the high-voltage permanent-magnet synchronous motor body.

[0014] 2. The utility model can prevent oil or water from leaking into the high-voltage permanent magnet synchronous motor body through the water-slinging plate, thereby ensuring a safe working environment for the high-voltage permanent magnet synchronous motor body and extending the service life of the high-voltage permanent magnet synchronous motor body.

[0015] 3. The protective shell in the utility model can protect the high-voltage permanent magnet synchronous motor body to avoid damage from external collisions. A bearing is provided on the front flange, and the output shaft of the high-voltage permanent magnet synchronous motor body is fixedly installed in the inner ring of the bearing, further increasing the output stability of the high-voltage permanent magnet synchronous motor body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only examples of the embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 This is a schematic diagram of the installation structure of the high-voltage permanent magnet synchronous motor body in an embodiment of the present utility model;

[0018] Figure 2 for Figure 1 A magnified schematic diagram of the structure of part A in the middle;

[0019] Figure 3 for Figure 1 Enlarged schematic diagram of the structure of part B in the middle.

[0020] Reference numerals:

[0021] 1. Protective housing; 2. Front flange; 3. Rear flange; 4. High-voltage permanent magnet synchronous motor body; 5. Water-slinging plate; 6. First mounting screw; 7. Motor base; 8. Motor fixing plate; 9. Second mounting screw; 10. Mounting platform; 11. Pulper tank. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clearly understood, the embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0023] In the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0024] 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.

[0025] See attached Figure 1-Figure 3 As shown, an embodiment of the utility model is a high-voltage permanent magnet synchronous motor dedicated to a direct-drive pulper, including a protective component, on which a high-voltage permanent magnet synchronous motor body 4 is installed, and the output shaft of the high-voltage permanent magnet synchronous motor body 4 is fixedly connected to the rotor at the bottom of the pulper trough 11; wherein the protective component is installed on the supporting component; and an oil and water-proof part is installed on the high-voltage permanent magnet synchronous motor body 4.

[0026] The output shaft of the high-voltage permanent-magnet synchronous motor body 4 is directly fixedly connected to the rotor at the bottom of the pulper tank 11. The high-voltage permanent-magnet synchronous motor body 4 directly drives the rotor to rotate the agitator blades. The motor has low operating loss, can reduce the transmission loss caused by traditional transmission devices, improve energy utilization, and is simple to install, reduces the transmission part, reduces the probability of mechanical failure, and is also convenient for maintenance, reducing production costs.

[0027] The protective assembly includes a protective shell 1, a front flange 2 is fixedly installed on the upper part of the protective shell 1, a rear flange 3 is fixedly installed on the lower part of the protective shell 1, a high-voltage permanent magnet synchronous motor body 4 is arranged inside the protective shell 1 and fixedly installed on the front flange 2, and the output shaft of the high-voltage permanent magnet synchronous motor body 4 passes through the front flange 2 and extends to the outside of the protective shell 1; wherein, a bearing is fixedly installed on the front flange 2, and the output shaft of the high-voltage permanent magnet synchronous motor body 4 is fixedly installed in the inner ring of the bearing.

[0028] The protective shell 1 can protect the high-voltage permanent magnet synchronous motor body 4 to avoid damage from external collisions. A bearing is set on the front flange 2, and the output shaft of the high-voltage permanent magnet synchronous motor body 4 is fixedly installed in the inner ring of the bearing to increase the output stability of the high-voltage permanent magnet synchronous motor body 4.

[0029] The supporting component is a motor base 7 , and the protective shell 1 is detachably mounted on the top of the motor base 7 . A motor fixing plate 8 is welded to the lower end of the motor base 7 , and the motor fixing plate 8 is detachably mounted on the mounting platform 10 .

[0030] The motor base 7 can effectively support the high-voltage permanent magnet synchronous motor body 4 and increase the output stability of the high-voltage permanent magnet synchronous motor body 4.

[0031] The rear flange 3 is fixedly connected to the top of the motor base 7 by means of a first mounting screw 6 ; the motor fixing plate 8 is fixedly mounted on the top of the mounting platform 10 by means of a second mounting screw 9 .

[0032] The first mounting screws 6 facilitate disassembly and assembly of the protective housing 1 and the motor base 7 , and facilitate maintenance and replacement. The second mounting screws 9 facilitate installation of the motor base 7 on the mounting platform 10 , and facilitate maintenance and replacement.

[0033] The oil and water prevention component is a water-slinging plate 5 , which is fixedly mounted on the output shaft of the high-voltage permanent magnet synchronous motor body 4 and is located above the bearing.

[0034] The water-slinging plate 5 prevents oil or water from leaking to the high-voltage permanent-magnet synchronous motor body 4, thereby ensuring a safe working environment for the high-voltage permanent-magnet synchronous motor body 4 and extending the service life of the high-voltage permanent-magnet synchronous motor body 4.

[0035] The output shaft of the high-voltage permanent magnet synchronous motor body 4, the rotor at the bottom of the pulper tank 11, the front flange 2, the rear flange 3, and the motor base 7 are all centered on the same central axis, increasing the overall assembly strength and further improving the output stability of the high-voltage permanent magnet synchronous motor body 4.

[0036] It is worth noting that a PT100 is provided inside the high-voltage permanent magnet synchronous motor body 4 to protect the safe operation of the motor stator and increase the service life of the motor.

[0037] When the present invention is working, the motor base 7 and the motor fixing plate 8 are first leveled and centered together and installed on the installation platform 10, and then the high-voltage permanent magnet synchronous motor body 4 is fixedly installed on the top of the motor base 7, so that the output shaft of the high-voltage permanent magnet synchronous motor body 4 is fixedly connected to the rotor at the bottom of the pulper tank body 11, and the water-stripping plate 5 is pre-installed on the output shaft of the high-voltage permanent magnet synchronous motor body 4. By starting the high-voltage permanent magnet synchronous motor body 4, the rotor impeller at the bottom of the pulper tank body 11 is driven to rotate, so that the pulp in the pulper tank body 11 is sucked in along the center of the axis and thrown out at high speed from the circumference, forming a violent turbulent circulation.

[0038] The above shows and describes the basic principles of the present invention. The above is only a preferred embodiment of the present invention and is not intended to limit the present invention. The above embodiments and descriptions in the specification are only 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 scope of protection of the present invention.

Claims

1. A high-voltage permanent magnet synchronous motor for a direct-drive pulper, characterized by: It comprises a protection component, on which a high-voltage permanent-magnet synchronous motor body (4) is mounted, and an output shaft of the high-voltage permanent-magnet synchronous motor body (4) is fixedly connected to a bottom rotor of a pulper tank body (11); wherein the protection assembly is mounted on the support member; An oil and water proof component is installed on the high-voltage permanent magnet synchronous motor body (4).

2. The high-voltage permanent magnet synchronous motor for a direct-drive pulper according to claim 1, characterized in that: The protective assembly comprises a protective shell (1), a front flange (2) is fixedly mounted on the upper portion of the protective shell (1), a rear flange (3) is fixedly mounted on the lower portion of the protective shell (1), the high-voltage permanent-magnet synchronous motor body (4) is arranged inside the protective shell (1) and fixedly mounted on the front flange (2), and the output shaft of the high-voltage permanent-magnet synchronous motor body (4) passes through the front flange (2) and extends to the outside of the protective shell (1); A bearing is fixedly mounted on the front flange (2), and the output shaft of the high-voltage permanent magnet synchronous motor body (4) is fixedly mounted in the inner ring of the bearing.

3. The high-voltage permanent magnet synchronous motor for a direct-drive pulper according to claim 2, characterized in that: The supporting component is a motor base (7), the protective housing (1) is detachably mounted on the top of the motor base (7), a motor fixing plate (8) is welded to the lower end of the motor base (7), and the motor fixing plate (8) is detachably mounted on the mounting platform (10).

4. The high-voltage permanent magnet synchronous motor for a direct-drive pulper according to claim 3, characterized in that: The rear flange (3) is fixedly connected to the top of the motor base (7) via a first mounting screw (6); The motor fixing plate (8) is fixedly mounted on the top of the mounting platform (10) via a second mounting screw (9).

5. The high-voltage permanent magnet synchronous motor for a direct-drive pulper according to claim 2, characterized in that: The oil and water prevention component is a water-swing plate (5), which is fixedly mounted on the output shaft of the high-voltage permanent magnet synchronous motor body (4) and is located above the bearing.

6. The high-voltage permanent magnet synchronous motor for a direct-drive pulper according to claim 4, characterized in that: The output shaft of the high-voltage permanent magnet synchronous motor body (4), the bottom rotor of the pulper tank (11), the front flange (2), the rear flange (3) and the center points of the motor base (7) are all located on the same central axis.

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