Three-phase asynchronous motor with good noise reduction effect

Abstract

The utility model discloses a three-phase asynchronous motor with a good noise reduction effect, and belongs to the technical field of motor equipment. Comprising a motor shell, a junction box and a fan shell, the junction box is arranged at the top of the motor shell, the fan shell is arranged on the back face of the motor shell, a power shaft hole is formed in the front face of the motor shell, and a fan shaft hole is formed in the back face of the motor shell; the stabilizing device is arranged on the surface of the fan shell, the stabilizing device downwards presses the surface of the fan shell through the material pressing base and the gasket which are connected in a sleeved mode, meanwhile, the stability is improved through the design of the gasket, the inserting bases are arranged at the front ends of the thickened parts on the two sides of the material pressing base, and the inserting bases are connected with one sides of the supporting legs in an inserted mode. The matched positioning bolts are inserted into the longitudinal inserting holes in the supporting legs, meanwhile, the matched positioning plug pins are inserted into the transverse inserting holes, the front ends of the positioning bolts penetrate through the middle sections of the positioning plug pins to be in threaded connection with the positioning plug pins, and therefore the whole material pressing base is prevented from sliding out backwards.

Description

Technical Field

[0001] The utility model belongs to the technical field of motor equipment, and in particular relates to a three-phase asynchronous motor with good noise reduction effect. Background Art

[0002] The three-phase asynchronous motor is a type of induction motor. It is a type of motor that is powered by a 380V three-phase alternating current. Because the rotor and stator rotating magnetic fields of the three-phase asynchronous motor rotate in the same direction and at different speeds, there is a slip rate, so it is called a three-phase asynchronous motor.

[0003] During the actual operation of the motor, the rotation of the internal motor will affect the external shell for a long time, causing abnormal noise in the entire structure. Utility Model Content

[0004] The utility model mainly solves the technical problems existing in the above-mentioned prior art and provides a three-phase asynchronous motor with good noise reduction effect.

[0005] The above-mentioned technical problems of the utility model are mainly solved by the following technical solutions: a three-phase asynchronous motor with good noise reduction effect, comprising a motor housing, a junction box and a fan housing, the junction box is arranged on the top of the motor housing, and the fan housing is arranged on the back of the motor housing, characterized in that: a power shaft hole is arranged on the front of the motor housing, a fan shaft hole is arranged on the back of the motor housing, and supporting feet are arranged on the left and right sides of the bottom of the motor housing, and foot pads are sleeved on the supporting feet, a forward longitudinal plug hole is opened on the rear side of the supporting foot, a transverse plug hole communicating with the longitudinal plug hole is opened on one side of the supporting foot, a stabilizing device is plugged into the surface of the fan housing, and the front side of the stabilizing device and the back side of the supporting foot are plugged into each other.

[0006] Preferably, a cavity is provided in the motor housing, a valve is plugged into one side of the front of the motor housing, and the cavity is filled with oil.

[0007] Preferably, the foot pad comprises a transverse portion and plug-in portions on both sides, the transverse portion connects the plug-in portions on both sides, the plug-in portions are plugged into the two ends of the supporting leg, and a threaded hole communicating with the supporting leg is provided on the top of the plug-in portion.

[0008] Preferably, the stabilizing device includes a press seat, a gasket, a thickened portion, a positioning bolt, a plug-in seat and a positioning pin, the press seat is sleeved on the surface of the fan casing, the gasket is located between the press seat and the fan casing, and the thickened portion is arranged at the top of both sides of the press seat, and the plug-in seat is arranged on the front side of the thickened portion and is plugged into the support foot forward.

[0009] Preferably, the positioning bolt is inserted into the back side of the thickened part, and penetrates the thickened part forward and is plugged into the longitudinal socket, the positioning pin is inserted into the transverse socket, and the middle section of the positioning pin is threadedly connected to the positioning bolt, and a reverse support block is arranged between the two legs, and the reverse support block is plugged into the bottom of the positioning pins on both sides.

[0010] The utility model has the beneficial effects: a stabilizing device is arranged on the surface of the fan casing, and the stabilizing device presses the surface of the fan casing downwards through the sleeved pressing seat and gasket, and at the same time the design of the gasket increases stability, plug-in seats are arranged at the front ends of the thickened parts on both sides of the pressing seat, the plug-in seat and one side of the support leg are plugged into each other, and the matching positioning bolts are plugged into the longitudinal sockets on the support legs, and at the same time the matching positioning pins are plugged into the transverse sockets, the front end of the positioning bolts passes through the middle section of the positioning pins and is threadedly connected with them, thereby preventing the entire pressing seat from sliding backwards, and then a foot pad is inserted into one side of the support leg, the foot pad can increase the tightness and stability of the connection between the entire support leg and the equipment, thereby reducing the abnormal sound of vibration between the support leg and the equipment, and at the same time the inner cavity inside the shell is filled with a large amount of oil, which is discharged in cooperation with the front valve, and at the same time the cavity and the oil increase the sound insulation effect on the rotation of the internal motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a three-dimensional structural schematic diagram of the front side of the utility model;

[0012] Figure 2 It is a three-dimensional structural schematic diagram of the back of the utility model;

[0013] Figure 3 This is a schematic diagram of a split structure of the stabilizing device of the utility model;

[0014] Figure 4 It is a cross-sectional structural schematic diagram of the utility model;

[0015] Figure 5 yes Figure 3 A schematic diagram of an enlarged structure at A in the middle.

[0016] In the figure: 1. Motor housing; 11. Junction box; 12. Support foot; 121. Longitudinal jack; 122. Horizontal jack; 13. Fan housing; 14. Power shaft hole; 15. Fan shaft hole; 2. Stabilizing device; 21. Pressing seat; 22. Washer; 23. Thickening part; 24. Positioning bolt; 25. Plug seat; 26. Positioning pin; 3. Foot pad; 31. Horizontal part; 32. Plug-in part; 33. Threaded hole; 4. Cavity; 41. Valve; 5. Reverse support block. DETAILED DESCRIPTION

[0017] The technical solution of the utility model is further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0018] Embodiment: A three-phase asynchronous motor with good noise reduction effect, such as Figure 1-Figure 5 As shown, it includes a motor housing 1, a junction box 11 and a fan housing 13, the junction box 11 is arranged on the top of the motor housing 1, the fan housing 13 is arranged on the back of the motor housing 1, and the two are connected to each other by bolts. A power shaft hole 14 is arranged on the front of the motor housing 1, and a fan shaft hole 15 is arranged on the back of the motor housing 1. Support feet 12 are arranged on the left and right sides of the bottom of the motor housing 1, and foot pads 3 are sleeved on the support feet 12. A forward longitudinal plug hole 121 is opened on the rear side of the support foot 12, and a transverse plug hole 122 communicating with the longitudinal plug hole 121 is opened on one side of the support foot 12. A stabilizing device 2 is plugged into the surface of the fan housing 13, and the front side of the stabilizing device 2 is plugged into the back of the support foot 12.

[0019] A cavity 4 is provided in the motor housing 1, a valve 41 is inserted on the front side of the motor housing 1, and the cavity 4 is filled with oil. At the same time, a large amount of oil is filled in the inner cavity of the housing, which is discharged in conjunction with the valve 41 on the front side. At the same time, the cavity 4 and the oil increase the sound insulation effect on the rotation of the internal motor.

[0020] The foot pad 3 includes a transverse portion 31 and plug-in portions 32 on both sides, the transverse portion 31 connects the plug-in portions 32 on both sides, the plug-in portions 32 are plugged into the two ends of the support leg 12, and a threaded hole 33 communicating with the support leg 12 is opened on the top of the plug-in portion 32. The stabilizing device 2 includes a press seat 21, a washer 22, a thickened portion 23, a positioning bolt 24, a plug-in seat 25 and a positioning pin 26. The press seat 21 is sleeved on the surface of the fan housing 13, the washer 22 is located between the press seat 21 and the fan housing 13, and the thickened portion 23 is arranged on the top of both sides of the press seat 21, and the plug-in seat 25 is arranged The front side of the thickened portion 23 is plugged with the support leg 12 forward, the positioning bolt 24 is plugged into the back of the thickened portion 23, and penetrates the thickened portion 23 forward to be plugged with the longitudinal plug hole 121, the positioning pin 26 is plugged into the transverse plug hole 122, and the middle section of the positioning pin 26 is threadedly connected with the positioning bolt 24, and a reverse support block 5 is arranged between the two support legs 12, the reverse support block 5 is made of a highly elastic material, and the bottom of the reverse support block 5 is lower than the bottom of the support leg 12, and the bottom of the reverse support block 5 and the positioning pins 26 on both sides are plugged into each other;

[0021] A stabilizing device 2 is provided on the surface of the fan casing, and the stabilizing device 2 presses the surface of the fan casing downward through the sleeved pressing seat 21 and the gasket 22. At the same time, the design of the gasket 22 increases stability. Connecting seats 25 are provided at the front ends of the thickened portions 23 on both sides of the pressing seat 21. The connecting seats 25 are plugged into one side of the leg, and the positioning bolts 24 are plugged into the longitudinal sockets 121 on the leg. At the same time, the positioning pins 26 are plugged into the transverse sockets 122. The front end of the positioning bolts 24 passes through the middle section of the positioning pins 26 and is threadedly connected thereto, thereby preventing the entire pressing seat 21 from sliding backwards. Then, a foot pad 3 is plugged into one side of the support leg 12. The foot pad 3 can increase the tightness and stability of the connection between the entire support leg 12 and the equipment, thereby reducing the abnormal sound of vibration between the support leg 12 and the equipment.

[0022] Finally, it should be pointed out that the above embodiments are only representative examples of the present utility model. Obviously, the present utility model is not limited to the above embodiments, and there are many variations. Any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present utility model should be considered to belong to the protection scope of the present utility model.

Claims

1. A three-phase asynchronous motor with good noise reduction effect, comprising a motor housing (1), a junction box (11) and a fan housing (13), wherein the junction box (11) is arranged on the top of the motor housing (1), and the fan housing (13) is arranged on the back of the motor housing (1), characterized in that: The front of the motor housing (1) is provided with a power shaft hole (14), the back of the motor housing (1) is provided with a fan shaft hole (15), the left and right sides of the bottom of the motor housing (1) are provided with supporting feet (12), the supporting feet (12) are sleeved with foot pads (3), the rear side of the supporting feet (12) is provided with a forward longitudinal plug hole (121), one side of the supporting feet (12) is provided with a transverse plug hole (122) communicated with the longitudinal plug hole (121), the surface of the fan housing (13) is plugged with a stabilizing device (2), and the front side of the stabilizing device (2) is plugged with the back side of the supporting feet (12).

2. A three-phase asynchronous motor with good noise reduction effect according to claim 1, characterized in that: A surrounding cavity (4) is provided in the motor housing (1), a valve (41) is plugged into one side of the front of the motor housing (1), and the cavity (4) is filled with oil.

3. A three-phase asynchronous motor with good noise reduction effect according to claim 1, characterized in that: The foot pad (3) comprises a transverse portion (31) and plug-in portions (32) on both sides, the transverse portion (31) connects the plug-in portions (32) on both sides, the plug-in portions (32) are plugged into the two ends of the support leg (12), and a threaded hole (33) communicating with the support leg (12) is provided at the top of the plug-in portion (32).

4. A three-phase asynchronous motor with good noise reduction effect according to claim 1, characterized in that: The stabilizing device (2) comprises a material pressing seat (21), a washer (22), a thickened portion (23), a positioning bolt (24), a plug-in seat (25) and a positioning latch (26); the material pressing seat (21) is sleeved on the surface of the fan housing (13); the washer (22) is located between the material pressing seat (21) and the fan housing (13); the thickened portion (23) is arranged at the top of both sides of the material pressing seat (21); the plug-in seat (25) is arranged at the front side of the thickened portion (23) and is plugged into the support leg (12) forwardly.

5. A three-phase asynchronous motor with good noise reduction effect according to claim 4, characterized in that: The positioning bolt (24) is inserted into the back side of the thickened portion (23) and penetrates the thickened portion (23) forward and is inserted into the longitudinal insertion hole (121). The positioning pin (26) is inserted into the transverse insertion hole (122), and the middle section of the positioning pin (26) is threadedly connected to the positioning bolt (24). A reverse support block (5) is provided between the two supporting legs (12), and the reverse support block (5) is inserted into the bottom of the positioning pins (26) on both sides.

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