Explosion-proof permanent magnet integrated machine with replaceable fan

Abstract

The utility model provides a kind of explosion-proof permanent magnet integrated machine of interchangeable fan, including pivot, rotor core and interchangeable fan, rotor core is equipped with pivot, interchangeable fan is detachably connected with rotor core by stud bolt, rotor core is stacked with stud bolt, interchangeable fan includes fan body, fan blade and mounting hole, mounting hole is set up on fan body, stud bolt is detachably fixed fan body with rotor core by mounting hole, fan blade is fixedly equipped in fan body.The utility model reduces the mechanical loss of motor, improves motor operating efficiency under the condition that fan plays the heat dissipation condition, meets user and market energy efficiency requirement.

Description

Technical Field

[0001] This utility model relates to the field of explosion-proof permanent magnet integrated machine production technology, and in particular to an explosion-proof permanent magnet integrated machine equipped with a replaceable fan that meets the requirements of high-efficiency and energy-saving motor. Background Technology

[0002] The government guides enterprises to upgrade key energy-consuming equipment such as motors, prioritizing the use of high-efficiency and energy-saving motors and accelerating the elimination of outdated and inefficient motors that do not meet current national energy efficiency standards. Efforts are being intensified to apply high-efficiency and energy-saving motors, with detailed consideration of load characteristics and different operating conditions, encouraging the use of motors with energy efficiency ratings of level two or higher. Explosion-proof permanent magnet integrated motors have a unique structure and need to meet user and market demands, posing a significant challenge to their efficiency. These motors must contend with harmonic losses from frequency converters, as well as copper losses, iron losses, stray losses, and mechanical losses inherent in permanent magnet motors. To address this, methods must be found to reduce losses in each component. Utility Model Content

[0003] The purpose of this invention is to provide an explosion-proof permanent magnet integrated machine equipped with a replaceable fan.

[0004] An explosion-proof permanent magnet integrated machine equipped with a replaceable fan includes a rotating shaft, a rotor core, and a replaceable fan. The rotor core is fitted with the rotating shaft, and the replaceable fan is detachably connected to the rotor core by double-ended bolts. The rotor core is stacked using double-ended bolts. The replaceable fan includes a fan body, fan blades, and mounting holes. Mounting holes are provided on the fan body, and double-ended bolts are used to detachably fix the fan body to the rotor core through the mounting holes. The fan blades are fixedly fitted to the fan body.

[0005] Preferably, the number of mounting holes matches the number of double-ended bolts, the number of mounting holes is not less than 3, and the mounting hole members are arranged circumferentially on the fan body.

[0006] Preferably, the number of fan blades is not less than 3, and the fan blade members are arranged in a circle around the fan body.

[0007] Preferably, the fan blades are axial flow fan blades or discrete fan blades.

[0008] This invention utilizes double-ended bolts to stack the rotor core, with pre-drilled mounting holes for a replaceable fan. These holes allow for tightening with the double-ended bolts. Different replaceable fans can be used to test the rotor, monitoring the temperature and efficiency of the explosion-proof permanent magnet integrated motor. This allows for the identification of the most suitable fan for the motor. The type of replaceable fan can be expanded to include the number and size of the fan blades, which also affect motor efficiency and temperature rise. Each time, simply disassemble different types of replaceable fans from the double-ended bolts and reassemble another replaceable fan for testing. This effectively solves the problem of using different types of fans with different explosion-proof permanent magnet integrated motors. Thus, this invention, while ensuring the fan provides heat dissipation, reduces motor mechanical losses, improves motor operating efficiency, and meets the energy efficiency requirements of users and the market. Attached Figure Description

[0009] Figure 1 A schematic diagram of the structure of an explosion-proof permanent magnet integrated machine equipped with a replaceable fan; Figure 2 This is a schematic diagram of an axial flow fan structure; Figure 3 This is a schematic diagram of the axial flow fan structure from a side view. Figure 4 This is a schematic diagram of a discrete fan structure; Figure 5 Schematic diagram of the side view structure of a discrete fan In the diagram: 1. Rotor shaft; 2. Rotor core; 3. Replaceable fan; 3-1. Axial fan; 3-1-1. Axial fan body; 3-1-2. Axial fan blade; 3-1-3. Axial mounting hole; 3-2. Discrete fan; 3-2-1. Discrete fan blade; 3-2-2. Discrete mounting hole; 4. Double-ended bolt. Detailed Implementation

[0010] To make the technical solution of this utility model easier to understand, the technical solution of this utility model will now be clearly and completely described in conjunction with the accompanying drawings and specific embodiments.

[0011] Please see Figure 1 The explosion-proof permanent magnet integrated unit equipped with a replaceable fan includes a rotating shaft 1, a rotor core 2, and a replaceable fan 3. The rotor core 2 is fitted to the rotating shaft 1. The replaceable fan 3 is detachably connected to the rotor core 2 via double-ended bolts 4. The rotor core 2 is stacked using the double-ended bolts 4. The replaceable fan 3 includes a fan body, fan blades, and mounting holes. Mounting holes are provided on the fan body. The double-ended bolts 4 detachably fix the fan body to the rotor core 3 through the mounting holes. The fan blades are fixedly fitted to the fan body. The number of mounting holes matches the number of double-ended bolts 4, and there are no fewer than three mounting holes arranged circumferentially around the fan body. There are no fewer than three fan blades arranged circumferentially around the fan body.

[0012] This utility model provides two embodiments: Example 1, please also refer to Figure 2 and Figure 3 The replaceable fan 3 is an axial fan 3-1, including an axial fan body 3-1-1, an axial fan blade 3-1-2, and an axial mounting hole 3-1-3. The axial fan 3-1 is fixed to the rotor core 2 by double-headed bolts 4, and the cooling air is axial air a.

[0013] Example 2, please also refer to Figure 4 and Figure 5 The replaceable fan 3 is a discrete fan 3-2, including a discrete fan body 3-2-1, discrete fan blades 3-2-2, and discrete mounting holes 3-2-3. The discrete fan 3-2 is fixed to the rotor core 2 by double-headed bolts 4, and the cooling air is discrete longitudinal air b.

[0014] This invention utilizes double-ended bolts to stack the rotor core, with pre-drilled mounting holes for a replaceable fan. These holes allow for tightening with the double-ended bolts. Different replaceable fans can be used to test the rotor, monitoring the temperature and efficiency of the explosion-proof permanent magnet integrated motor. This allows for the identification of the most suitable fan for the motor. The type of replaceable fan can be expanded to include the number and size of the fan blades, which also affect motor efficiency and temperature rise. Each time, simply disassemble different types of replaceable fans from the double-ended bolts and reassemble another replaceable fan for testing. This effectively solves the problem of using different types of fans with different explosion-proof permanent magnet integrated motors. Thus, this invention, while ensuring the fan provides heat dissipation, reduces motor mechanical losses, improves motor operating efficiency, and meets the energy efficiency requirements of users and the market.

[0015] It should be noted that the embodiments described herein are only some embodiments of this utility model, and not all implementations of this utility model. These embodiments are merely illustrative and are intended only to provide a more intuitive and clear way of understanding the content of this utility model, not to limit the technical solutions described herein. All other implementation methods that can be conceived by those skilled in the art without creative effort, as well as other simple substitutions and variations of the technical solutions of this utility model, without departing from the concept of this utility model, are within the protection scope of this utility model.

Claims

1. An explosion-proof permanent magnet integrated machine equipped with a replaceable fan, characterized in that: The explosion-proof permanent magnet integrated machine equipped with a replaceable fan includes a shaft, a rotor core, and a replaceable fan. The rotor core is fitted with the shaft, and the replaceable fan is detachably connected to the rotor core by double-headed bolts. The rotor core is stacked using double-headed bolts. The replaceable fan includes a fan body, fan blades, and mounting holes. Mounting holes are provided on the fan body, and double-headed bolts are used to detachably fix the fan body to the rotor core through the mounting holes. The fan blades are fixedly fitted to the fan body.

2. The explosion-proof permanent magnet integrated machine equipped with a replaceable fan as described in claim 1, characterized in that: The number of mounting holes matches the number of double-ended bolts, and the number of mounting holes is no less than 3. The mounting hole members are arranged around the fan body.

3. The explosion-proof permanent magnet integrated machine equipped with a replaceable fan as described in claim 2, characterized in that: The number of fan blades is no less than 3, and the fan blade members are arranged in a circle around the fan body.

4. The explosion-proof permanent magnet integrated machine equipped with a replaceable fan as described in claim 3, characterized in that: The fan blades are either axial flow fan blades or discrete fan blades.

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