Rotor assembly of variable frequency starting synchronous magnetic group motor

Abstract

The utility model discloses a rotor assembly of a frequency conversion starting synchronous magnetic group motor, which comprises a power mechanism, a shaping mechanism and a sealing mechanism, and is characterized in that the power mechanism comprises a motor shell, a notch formed in one side of the motor shell, a rotor shaft transversely penetrating through the motor shell and the notch, and the shaping mechanism; the shaping mechanism comprises a rubber ring and a steel hoop, the rubber ring is movably embedded in the notch, the steel hoop is installed in the rubber ring, the rubber ring is connected to the outer side of the rotor shaft in a sleeving mode, and the sealing mechanism comprises a ring body installed in the steel hoop. In the utility model, under the influence of the steel hoop, the outer wall of the rubber ring is tightly attached to the inner wall of the notch, then the inner wall of the rubber ring is tightly attached to the outer wall of the rotor shaft, the rubber pad is sleeved on the outer side of the rotor shaft, then the pressing sheet is pressed, and the bulge on the inner side of the pressing sheet extrudes the rubber pad, so that the rubber pad is seamlessly attached to the ring body; and the sealing performance of the device is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rotor assemblies, and particularly to a rotor assembly of a variable-frequency starting synchronous magnetic group motor. Background Technique

[0002] An electric motor refers to an electromagnetic device that realizes the conversion or transmission of electrical energy based on the law of electromagnetic induction, or converts electrical energy in one form into electrical energy in another form.

[0003] The rotor assembly is usually used in cooperation with the motor. During use, there is a probability that dust will enter between the two, and then cause component wear. In order to reduce the motor damage rate, a sealing ring is sleeved outside the rotor shaft, but it can only reduce the entry of dust, so the sealing effect needs to be improved. Content of the Utility Model

[0004] The utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0005] For this reason, the technical solution adopted by the utility model is as follows:

[0006] A rotor assembly of a variable-frequency starting synchronous magnetic group motor includes a power mechanism, a shaping mechanism and a sealing mechanism. The power mechanism includes a motor housing, a notch opened on one side of the motor housing, and a rotor shaft horizontally penetrating through the motor housing and the notch. The shaping mechanism includes a rubber ring movably embedded in the notch and a steel hoop installed inside the rubber ring. The rubber ring is sleeved outside the rotor shaft. The sealing mechanism includes a ring body installed inside the steel hoop, a rubber pad attached to one side of the motor housing, and a plurality of pressing pieces connected to the motor housing. The inner end of the pressing piece is in interference fit with the inner edge of the rubber pad.

[0007] By adopting the above technical solution, under the influence of the steel hoop, the outer wall of the rubber ring is closely attached to the inner wall of the notch, then the inner wall of the rubber ring is closely attached to the outer wall of the rotor shaft, then the rubber pad is sleeved outside the rotor shaft, and then the pressing piece is pressed. The protrusion on the inner side of the pressing piece squeezes the rubber pad, so that the rubber pad is seamlessly attached to the ring body. Under double sealing, the sealing performance of the device is greatly improved.

[0008] The utility model can be further configured in a preferred example as follows: the outer edge of the rubber ring is set as an arc surface, and the arc surface is close to the outer wall of the rotor shaft.

[0009] The utility model can be further configured in a preferred example as follows: the steel hoop is made of a metal material, and the production material of the ring body is the same as that of the steel hoop.

[0010] In a preferred embodiment, the present utility model can be further configured as follows: the diameter of the inner edge of the rubber pad is equal to the diameter of the ring body, and the thickness of the rubber pad is set to 0.1 - 0.3 cm.

[0011] In a preferred embodiment, the present utility model can be further configured as follows: a plurality of pressing plates are arranged at equal intervals in a circular arrangement, and the inner ends of the pressing plates are provided with protrusions.

[0012] By adopting the above technical solution, the beneficial effects achieved by the present utility model are:

[0013] In the present utility model, under the influence of the steel hoop, the outer wall of the rubber ring is closely attached to the inner wall of the notch, then the inner wall of the rubber ring is closely attached to the outer wall of the rotor shaft, then the rubber pad is sleeved outside the rotor shaft, and then the pressing plate is pressed. The protrusion on the inner side of the pressing plate squeezes the rubber pad, making the rubber pad fit seamlessly with the ring body. Under the double seal, the sealing performance of the present device is greatly improved. Description of the Drawings

[0014] Figure 1 It is a three-dimensional view of the overall structure of the present utility model;

[0015] Figure 2 It is a schematic diagram of the power mechanism of the present utility model;

[0016] Figure 3 It is an assembly schematic diagram of the shaping mechanism of the present utility model;

[0017] Figure 4 It is a disassembly schematic diagram of the shaping mechanism of the present utility model;

[0018] Figure 5 It is a schematic diagram of the sealing mechanism of the present utility model.

[0019] Reference Numerals:

[0020] 100, power mechanism; 110, motor housing; 120, notch; 130, rotor shaft;

[0021] 200, shaping mechanism; 210, rubber ring; 220, steel hoop;

[0022] 300, sealing mechanism; 310, ring body; 320, rubber pad; 330, pressing plate. Detailed Description of the Invention

[0023] To make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below in conjunction with the specific embodiments and with reference to the accompanying drawings. It should be noted that, without conflict, the embodiments of the present utility model and the features in the embodiments can be combined with each other.

[0024] It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the present utility model.

[0025] The following describes a rotor assembly of a variable-frequency starting synchronous magnetic group motor provided by some embodiments of the present utility model in conjunction with the accompanying drawings.

[0026] Embodiment 1:

[0027] Combined Figures 1-5 As shown, a rotor assembly of a variable-frequency starting synchronous magnetic group motor provided by the present utility model includes a power mechanism 100, a shaping mechanism 200, and a sealing mechanism 300. The power mechanism 100 includes a motor housing 110, a notch 120 opened on one side of the motor housing 110, and a rotor shaft 130 horizontally penetrating through the motor housing 110 and the notch 120;

[0028] The shaping mechanism 200 includes a rubber ring 210 movably embedded inside the notch 120 and a steel hoop 220 installed inside the rubber ring 210. The rubber ring 210 is sleeved outside the rotor shaft 130;

[0029] The sealing mechanism 300 includes an annular body 310 installed inside the steel hoop 220, a rubber pad 320 attached to one side of the motor housing 110, and a plurality of pressing pieces 330 connected to the motor housing 110. The inner ends of the pressing pieces 330 are in interference fit with the inner edge of the rubber pad 320.

[0030] Furthermore, the outer edge of the rubber ring 210 is set as an arc surface, and the arc surface is close to the outer wall of the rotor shaft 130. With this shape design, the rubber ring 210 can be seamlessly attached to the outer wall of the rotor shaft 130, effectively preventing dust from entering between the motor housing 110 and the rotor shaft 130.

[0031] Furthermore, the diameter of the inner edge of the rubber pad 320 is equal to the diameter of the annular body 310, and the thickness of the rubber pad 320 is set to 0.1 - 0.3 cm. With this size design, it is ensured that the rubber pad 320 can be pressed into the inside of the steel hoop 220, and then the rubber pad 320 is attached to the annular body 310, further preventing dust from entering.

[0032] Embodiment 2:

[0033] Combined Figures 1-5 As shown, on the basis of Embodiment 1, the steel hoop 220 is made of a metal material, and the manufacturing material of the annular body 310 is the same as that of the steel hoop 220. The steel hoop 220 and the annular body 310 made of the metal material are not easily deformed, ensuring the service life of both.

[0034] Embodiment 3:

[0035] Combined Figure 5As shown, in the above embodiment, a plurality of pressing plates 330 are arranged at equal intervals in a circular shape. The inner ends of the pressing plates 330 are provided with protrusions. By providing the protrusions, the pressing plates 330 can tightly press the rubber pad 320, and then the rubber pad 320 can be firmly attached to the ring body 310.

[0036] Working principle and usage process of the present utility model: When the device is put into actual use, under the influence of the steel hoop 220, the outer wall of the rubber ring 210 is closely attached to the inner wall of the notch 120. Then, the inner wall of the rubber ring 210 is closely attached to the outer wall of the rotor shaft 130. Then, the rubber pad 320 is sleeved outside the rotor shaft 130. Then, the pressing plate 330 is pressed, and the protrusion on the inner side of the pressing plate 330 squeezes the rubber pad 320, so that the rubber pad 320 is seamlessly attached to the ring body 310. Under double sealing, the sealing performance of the device is greatly improved.

[0037] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of the present utility model. The scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A rotor assembly of a variable-frequency starting synchronous magnetic group motor, characterized in that, Comprising: A power mechanism (100), the power mechanism (100) includes a motor housing (110), a notch (120) opened on one side of the motor housing (110), and a rotor shaft (130) horizontally penetrating through the motor housing (110) and the notch (120); A shaping mechanism (200), the shaping mechanism (200) includes a rubber ring (210) movably embedded in the notch (120), and a steel hoop (220) installed inside the rubber ring (210), and the rubber ring (210) is sleeved on the outer side of the rotor shaft (130); A sealing mechanism (300), the sealing mechanism (300) includes a ring body (310) installed inside the steel hoop (220), a rubber pad (320) attached to one side of the motor housing (110), and a plurality of pressing pieces (330) connected to the motor housing (110), and the inner ends of the pressing pieces (330) are in interference fit with the inner edge of the rubber pad (320).

2. The rotor assembly of a variable-frequency starting synchronous magnetic group motor according to claim 1, wherein, The outer edge of the rubber ring (210) is set as an arc surface, and the arc surface is close to the outer wall of the rotor shaft (130).

3. The rotor assembly of a variable-frequency starting synchronous magnetic group motor according to claim 1, characterized in that, The steel hoop (220) is made of a metal material, and the production material of the ring body (310) is the same as that of the steel hoop (220).

4. The rotor assembly of a variable-frequency starting synchronous magnetic group motor according to claim 1, characterized in that, The diameter of the inner edge of the rubber pad (320) is equal to the diameter of the ring body (310), and the thickness of the rubber pad (320) is set to 0.1 - 0.3 cm.

5. The rotor assembly of a variable-frequency starting synchronous magnetic group motor according to claim 1, characterized in that The plurality of pressing pieces (330) are arranged at equal intervals in a ring shape, and the inner ends of the pressing pieces (330) are convexly provided.

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