CN212258741U - Frequency-conversion speed-regulation three-phase asynchronous motor - Google Patents

Abstract

The utility model discloses a three-phase asynchronous motor with frequency conversion and speed regulation, which comprises a base and a high-voltage three-phase asynchronous motor. cavity. The three-phase asynchronous motor with variable frequency speed regulation can drive the straight rack to move forward by moving the handle to the front side, thereby driving the gear to rotate to the rear side, which can drive the baffle to turn over, so as to open the filter screen and make the air flow. circulation, improve the heat dissipation effect of the bottom end of the motor, the vibration of the outside world or itself can be absorbed by the spring, and the stability of the high-voltage three-phase asynchronous motor during operation can be improved. The device can improve the heat dissipation effect of the bottom of the high-voltage three-phase asynchronous motor Avoid long-term work of the motor to easily damage the high-voltage three-phase asynchronous motor, and ensure that the high-voltage three-phase asynchronous motor can work normally.

Description

A three-phase asynchronous motor with variable frequency speed regulation

technical field

The utility model relates to the technical field of frequency conversion speed regulation motors, in particular to a frequency conversion speed regulation three-phase asynchronous motor.

Background technique

The high-voltage three-phase asynchronous motor is a new energy-saving product jointly designed by the Ministry of Electrical and Mechanical Engineering. Its main technical and economic indicators have been greatly improved compared with JS series and JR series motors. BBC company level.

However, when the existing three-phase asynchronous motor with frequency conversion and speed regulation is used, the heat dissipation and moisture-proof effect is poor, and the main body of the motor is easily damaged when working for a long time, resulting in a shortening of the life of the motor.

Utility model content

The purpose of the utility model is to provide a three-phase asynchronous motor with frequency conversion and speed regulation, so as to solve the problem that when the three-phase asynchronous motor of frequency conversion and speed regulation in the prior art is used, the heat dissipation and moisture-proof effect is poor, and the main body of the motor is easily damaged after long-term work, causing the motor body to be damaged. The problem of shortened lifespan.

In order to achieve the above purpose, the utility model provides the following technical solutions: a three-phase asynchronous motor with frequency conversion and speed regulation, comprising a base and a high-voltage three-phase asynchronous motor, the top of the base is provided with a high-voltage three-phase asynchronous motor, and also includes,

The heat dissipation mechanism is installed in the inner cavity of the base.

Preferably, the heat dissipation mechanism includes a filter screen, a round rod, a baffle plate, a gear, a straight rack, a handle, a first permanent magnet and a second permanent magnet, a filter screen is installed on the top of the base, and an inner part of the base is installed. Round rods are installed at the front and rear ends of the cavity along the left and right sides through bearings. The inner ring of the bearing is in interference fit with the outer wall of the round rod. The outer ring of the bearing is fixedly installed with the inner wall of the base. The outer wall of the round rod A baffle plate matched with a filter screen is installed on the rear side, a gear is installed on the left end of the outer wall of the round rod, a spur gear meshing with the gear is installed at the bottom end of the inner cavity of the base, and the left side of the spur gear rack is installed. A handle is installed at the rear end, and the left side of the handle extends out of the base, a first permanent magnet is installed on the front and rear ends of the left side of the base, and a second permanent magnet is installed at the top of the handle.

Preferably, the area of the filter screen and the high-voltage three-phase asynchronous motor are located on the same vertical line.

Preferably, a chute is provided along the front-rear direction on the left side of the bottom end of the inner cavity of the base, a matching sliding block is embedded in the inner cavity of the chute, and the top end of the sliding block is clamped with the straight rack.

Preferably, springs are installed at four corners of the inner cavity of the base.

Compared with the prior art, the beneficial effect of the present utility model is: the three-phase asynchronous motor with variable frequency speed regulation can drive the straight rack to move forward by moving the handle to the front side, thereby driving the gear to rotate to the rear side, which can Drive the baffle to turn over, so as to open the filter, so that the air can be circulated, and the heat dissipation effect of the bottom end of the motor can be improved. Improve the heat dissipation effect, prevent the motor from being easily damaged by long-term operation, and ensure that the motor can work normally.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the base structure schematic diagram of the utility model of Fig. 1;

Fig. 3 is the left side sectional structure schematic diagram of the utility model of Fig. 2;

FIG. 4 is a schematic view of the enlarged structure of part A of the present invention in FIG. 2 .

In the picture: 1. Base, 2. High-voltage three-phase asynchronous motor, 3. Cooling mechanism, 31. Filter screen, 32, Round rod, 33, Baffle plate, 34, Gear, 35, Spur rack, 36, Handle, 37 , The first permanent magnet, 38, the second permanent magnet, 4, the spring, 5, the chute, 6, the slider.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

1-4, the present utility model provides a technical solution: a three-phase asynchronous motor with frequency conversion and speed regulation, comprising a base 1 and a high-voltage three-phase asynchronous motor 2, and a high-voltage three-phase asynchronous motor 2 is installed on the top of the base 1, The high-voltage three-phase asynchronous motor 2 is an existing technology, and can be adapted to the device without special model requirements. It also includes that the heat dissipation mechanism 3 is installed in the inner cavity of the base 1, and the high-voltage three-phase asynchronous motor 2 can be treated by the heat dissipation mechanism 3. for heat dissipation or moisture protection.

As a preferred solution, the heat dissipation mechanism 3 includes a filter screen 31, a round rod 32, a baffle 33, a gear 34, a straight rack 35, a handle 36, a first permanent magnet 37 and a second permanent magnet 38, and the top of the base 1 is installed with a filter The net 31 is used to dissipate heat from the bottom end of the high-voltage three-phase asynchronous motor 2 through the filter net 31. Round rods 32 are installed on the front and rear ends of the inner cavity of the base 1 along the left and right sides through bearings. The outer wall is interference fit, the outer ring of the bearing is fixedly installed with the inner wall of the base 1, and the rear side of the outer wall of the round rod 32 is installed with a baffle 33 that matches the filter 31. The baffle 33 can seal the filter 31 to avoid moisture. Affecting the high-voltage three-phase asynchronous motor 2, a gear 34 is installed on the left end of the outer wall of the round rod 32, and a spur gear 35 meshing with the gear 34 is installed at the bottom end of the inner cavity of the base 1. The spur gear 35 moves forward to drive the gear 34 rotates, a handle 36 is installed on the left rear end of the straight rack 35, and the left side of the handle 36 extends out of the base 1, and the straight rack 35 can be easily driven to move by the handle 36. A first permanent magnet 37 is installed, and the top of the handle 36 is installed with a second permanent magnet 38 , and the handle 36 can be fixed by attracting the first permanent magnet 37 and the second permanent magnet 38 .

As a preferred solution, the area of the filter screen 31 and the high-voltage three-phase asynchronous motor 2 are located on the same vertical line, so that the filter screen 31 can dissipate heat from the bottom end of the high-voltage three-phase asynchronous motor 2 .

As a preferred solution, the left side of the bottom end of the inner cavity of the base 1 is provided with a chute 5 along the front-rear direction, the inner cavity of the chute 5 is embedded with a matching sliding block 6, and the top of the sliding block 6 is installed with the straight rack 35. Then, by sliding the slider 6 in the inner cavity of the chute 5, the spur gear 35 can be more stable when moving.

As a preferred solution, springs 4 are installed at the four corners of the inner cavity of the base 1, and the vibrations generated by the high-voltage three-phase asynchronous motor 2 and the outside can be absorbed by the springs 4.

The detailed connection means are known in the art. The following mainly introduces the working principle and process, and the specific work is as follows.

When the high-voltage three-phase asynchronous motor 2 works, it will generate heat, and only the current heat dissipation can not achieve a good heat dissipation effect. When the heat dissipation effect needs to be improved, hold the handle 36 by hand and move it forward to promote the second permanent magnet 38 It is separated from the first permanent magnet 37 on the rear side to ensure that the handle 36 can move normally, and the straight rack 35 moves forward, which can drive the gear 34 to move to the rear side, and the shutter 33 can be opened. At the same time, the second permanent magnet 38 It is attracted to the first permanent magnet 37 on the rear side, and the handle 36 is fixed. When the baffle 33 is opened, the air circulation in the inner cavity of the base 1 can dissipate heat to the bottom end of the high-voltage three-phase asynchronous motor 2. When the moisture is too heavy When the filter screen 31 needs to be closed, the reverse operation can be performed according to the above principle. The spring 4 can absorb the vibration generated by the operation of the high-voltage three-phase asynchronous motor 2 or the vibration generated by the outside world, so as to avoid the impact of the high-voltage three-phase asynchronous motor during vibration. The motor 2 works normally, the device has a simple structure and is easy to use, the filter can be quickly opened or closed to deal with heat dissipation and moisture-proof conditions, and part of the vibration can be absorbed, which is beneficial to the promotion and use of the device.

In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", " The orientation or positional relationship indicated by "top", "inside", "front", "center", "both ends", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description , rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation; at the same time, unless otherwise expressly specified and limited, the terms "snap connection", "shaft connection", "plug connection" ", "set", "installation" and other terms should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrated; it can be a mechanical connection or an electrical connection; it can be a direct connection, It can also be indirectly connected through an intermediate medium, which can be the internal communication between two elements or the interaction relationship between the two elements. Unless otherwise clearly defined, those of ordinary skill in the art can understand the above terms according to specific circumstances. The specific meaning in this utility model.

Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes and modifications can be made to these embodiments without departing from the principles and spirit of the present invention , alternatives and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (5)

1. The utility model provides a variable frequency speed governing three-phase asynchronous motor, includes three asynchronous high-voltage three asynchronous motor (2) of base (1) and high pressure, three asynchronous high-voltage three asynchronous motor (2) of high pressure are installed to the top of base (1), its characterized in that: also comprises the following steps of (1) preparing,

and the heat dissipation mechanism (3) is arranged in the inner cavity of the base (1).

2. The variable-frequency speed-regulating three-phase asynchronous motor according to claim 1, characterized in that: the heat dissipation mechanism (3) comprises a filter screen (31), a round rod (32), a baffle (33), a gear (34), a spur rack (35), a handle (36), a first permanent magnet (37) and a second permanent magnet (38), the filter screen (31) is installed on the top of the base (1), the round rod (32) is installed on the left side and the right side of the inner cavity of the base (1) at the front end and the rear end of the inner cavity of the base along the left side and the right side, the inner ring of the bearing is in interference fit with the outer wall of the round rod (32), the outer ring of the bearing is fixedly installed on the inner wall of the base (1), the baffle (33) matched with the filter screen (31) is installed on the rear side of the outer wall of the round rod (32), the gear (34) is installed at the left end of the outer wall of the round rod (32), the spur rack (35) meshed with the gear (34) is installed at the bottom of the inner, and the left side of handle (36) extends base (1), first permanent magnet (37) are all installed at both ends around the left side of base (1), the top of handle (36) is installed with second permanent magnet (38).

3. The variable-frequency speed-regulating three-phase asynchronous motor according to claim 2, characterized in that: the area of the filter screen (31) and the high-voltage three-phase asynchronous motor (2) are positioned on the same vertical line.

4. A variable frequency speed-regulating three-phase asynchronous motor according to claim 1 or 2, characterized in that: base (1) inner chamber bottom left side has seted up spout (5) along the fore-and-aft direction, the inner chamber of spout (5) is embedded to have assorted slider (6), and the top ann of slider (6) and spur rack (35) joint.

5. The variable-frequency speed-regulating three-phase asynchronous motor according to claim 1, characterized in that: and springs (4) are arranged at four corners of the inner cavity of the base (1).

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