CN215267886U

CN215267886U - Pole-changing speed-regulating three-phase asynchronous motor

Info

Publication number: CN215267886U
Application number: CN202120614743.3U
Authority: CN
Inventors: 陈小标; 陈玉飞; 谢百锋; 顾豪杰
Original assignee: Shaoxing Jinying Machinery Manufacturing Co ltd
Current assignee: Shaoxing Jinying Machinery Manufacturing Co ltd
Priority date: 2021-03-25
Filing date: 2021-03-25
Publication date: 2021-12-21
Anticipated expiration: 2031-03-25

Abstract

The utility model discloses a pole-changing speed-regulating three-phase asynchronous motor, which comprises a body, a motor shaft arranged on the body, a fan arranged on the motor shaft, an inner fan cover arranged on the body, an outer fan cover arranged on the body and a rainproof mechanism arranged on the body; the rain-proof mechanism comprises a supporting rod, a supporting spring arranged on the supporting rod, a rain receiving assembly arranged on the supporting rod and a rain shielding assembly arranged on the inner wind shield.

Description

Pole-changing speed-regulating three-phase asynchronous motor

Technical Field

The utility model belongs to the technical field of, especially, relate to a change pole speed governing three-phase asynchronous motor.

Background

The three-phase asynchronous motor is one kind of induction motor, and is one kind of motor powered by 380V three-phase AC power source (120 deg phase difference), and is called three-phase asynchronous motor because the rotating magnetic fields of the rotor and the stator rotate in the same direction and at different rotation speeds and have slip ratio.

When the three-phase asynchronous motor works outdoors, if the three-phase asynchronous motor runs into wind and rain weather, rainwater can enter the motor through the air inlet fence on the fan cover, so that the service life of the motor is shortened or the motor circuit is short-circuited to burn the motor.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an overcome prior art not enough, provide a change pole speed governing three-phase asynchronous motor.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a pole-changing speed-regulating three-phase asynchronous motor comprises a body, a motor shaft arranged on the body, a fan arranged on the motor shaft, an inner fan cover arranged on the body, an outer fan cover arranged on the body and a rainproof mechanism arranged on the body; the rain-proof mechanism comprises a supporting rod, a supporting spring arranged on the supporting rod, a rain receiving component arranged on the supporting rod and a rain shielding component arranged on the inner wind shield; in non-rainy days, the supporting rod supports the rain receiving assembly through the supporting spring; when raining, collect the rainwater through connecing the rain subassembly, when the pressure of rainwater is greater than supporting spring's holding power, connect rain subassembly to move down, drive the subassembly that keeps off the rain and move, make it block the rainwater that gets into from outer wind shield, can not get into from interior wind shield, play the effect that keeps off the rain.

Further, the rain collecting assembly comprises a sponge box, a water discharging hole formed in the sponge box, sponge arranged on the sponge box, a cleaning component arranged on the sponge box, a rain collecting box arranged on the sponge box, a rain leaking groove formed in the sponge box and a water leaking component arranged on the rain collecting box; the sponge sucks the rainwater into the sponge box, and the rainwater collecting speed can be accelerated by the rainwater collecting box and enters the sponge in the sponge box through the rainwater leaking groove.

Further, the cleaning component comprises a cleaning plate, an inner plate arranged on the cleaning plate, a deflector rod arranged on the inner plate, an inner plate chute arranged on the cleaning plate, an inner plate spring arranged on the inner plate and a deflector rod chute arranged on the sponge box; the cleaning plate can extrude water absorbed by sponge in the sponge box after rain through the drain holes, the deflector rod slides in the transverse groove of the 7-shaped deflector rod sliding groove to the uppermost end of the vertical groove, the inner plate can be pulled out, the protruding part at the upper end of the sponge is compressed, the sponge slides to the lower end of the vertical groove, and the water in the sponge can be extruded from the drain holes.

Further, the water leakage component comprises a sliding rod, a sliding rod groove arranged on the sponge box, a baffle arranged on the rain receiving box, a baffle torsional spring arranged on the baffle and a mandril arranged on the baffle; when the deflector rod moves in the vertical groove of the 7-shaped deflector rod sliding groove, the deflector rod is in contact with the sliding rod, the sliding rod moves the ejector rod on the baffle plate downwards, and then water stored in the rain receiving box can flow down from the opening of the baffle plate.

Furthermore, the rain shielding part comprises a rotating shaft, a water baffle arranged on the rotating shaft, a flanging arranged on the water baffle, a first connecting rod arranged on the sponge box, a second connecting rod arranged on the first connecting rod and a water leakage groove arranged on the outer wind shield; the pressed sponge box drives the end part of the second connecting rod to move downwards through the first connecting rod, so that the rotating shaft rotates, and each water baffle is aligned to each vertical vent hole of the outer fan cover; rainwater adhered to the water baffle can flow downwards along the flanging and flows out of the water leakage groove.

To sum up, the utility model discloses a sponge box with connect the rain box to store the rainwater, the gravity through the rainwater of storing drives the breakwater and rotates, will keep off on the breakwater from the rainwater that outer wind cowl got into, the turn-ups flows down, flows out from the basin that leaks.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a front view of the present invention.

Fig. 3 is a cross-sectional view taken at a-a of fig. 2.

Fig. 4 is a sectional view taken at B-B of fig. 2.

Fig. 5 is a sectional view at C-C of fig. 2.

Fig. 6 is a cross-sectional view taken at D-D of fig. 2.

Fig. 7 is a rear view of the present invention.

Detailed Description

As shown in fig. 1-7, a pole-changing speed-regulating three-phase asynchronous motor comprises a body 1, a motor shaft 10, a fan 11, an inner wind shield 12, an outer wind shield 13 and a rainproof mechanism; the fan 11 can rotate in the inner fan cover 12 at the rear part of the body 1; the outer fan housing 13 is positioned on the outer wall of the inner fan housing 12; the vent holes of the inner wind cover 12 and the outer wind cover 13 are arranged in the longitudinal row and the circumference and are in one-to-one correspondence.

Specifically, the rain-proof mechanism comprises a support rod 2, a support spring 20, a rain receiving component and a rain shielding component; the bottom of the support rod 2 is fixed at the back of the top of the body 1; the supporting spring 20 is sleeved on the supporting rod 2, one end of the supporting spring is fixedly connected to the bottom of the body 1, and the other end of the supporting spring is fixedly connected to the bottom surface of the sponge box 3; the rain collecting assembly comprises a sponge box 3, a water discharging hole 30, a sponge 31, a cleaning component, a rain collecting box 32, a rain leaking groove 33 and a water leaking component; the bottom of the sponge box 3 can slide on the supporting rod 2; the sponge 31 is arranged in the sponge box, and the drain hole 30 is positioned at the bottom of the sponge box 3; the rain receiving box 32 is fixed on two side walls of the sponge box 3; the rain leaking groove 33 is positioned at the bottom of the side wall of the sponge box 3; the cleaning component comprises a cleaning plate 4, a deflector rod 40, an inner plate 41, an inner plate sliding groove 42, an inner plate spring 43 and a deflector rod sliding groove 34; the cleaning plate 4 is positioned at the top of the sponge box 3; the inner plate 41 can slide in an inner plate sliding groove 42 in the middle of the cleaning plate 4; the deflector rod 40 is positioned on the rear wall of the inner cleaning plate 41; one end of an inner plate spring 43 is fixedly connected to the inner plate 41, and the other end is fixedly connected to the cleaning plate 4; the deflector rod chute 34 is positioned on the rear wall of the sponge box 3 and is a 7-shaped chute; the water leakage component comprises a sliding rod 5, a sliding rod groove 35, a baffle 50, a baffle torsion spring 51 and a mandril 52; the sliding rod 5 can slide up and down in a sliding rod groove 35 on the rear wall of the sponge box 3; one end of the baffle 50 can rotate at the bottom of the rain receiving box 32, one end of the baffle torsional spring 51 is fixedly connected to the baffle 50, and the other end is fixedly connected to the side wall of the rain receiving box 32; the top rod 52 is fixed on the rear wall of the baffle 50, and the top part of the top rod is contacted with the sliding rod 5; the rain shielding part comprises a rotating shaft 6, a water baffle 60, a flanging 61, a first connecting rod 62, a second connecting rod 63 and a water leakage groove 14; the rotating shaft 6 can rotate in the middle of the inner fan cover 12; the water baffles 60 are uniformly and circumferentially arranged on the rotating shaft 6, each water baffle 60 corresponds to each vent hole in each longitudinal row, and the flanges 61 are positioned at two sides of each water baffle 60; one end of the first connecting rod 62 is fixedly connected to the sponge box 3, and the other end is hinged with the second connecting rod 63; the other end of the second connecting rod 63 is hinged with the rotating shaft 6; the water leakage groove 4 is positioned at the bottom of the outer fan cover 13.

The working principle is as follows: in non-rainy days, the supporting rod 2 supports the sponge box 3 through the supporting spring 20; in rainy days, rainwater can be collected through the sponge 31, when the pressure of the rainwater is greater than the supporting force of the supporting spring 20, the sponge box 3 moves downwards, the pressed sponge box 3 drives the end part of the second connecting rod 63 to move downwards through the first connecting rod 62, so that the rotating shaft 6 rotates, and each water baffle 60 is aligned to each vertical vent hole of the outer fan housing 13; the rainwater entering from the outer wind shield 13 is blocked and cannot enter from the inner wind shield 12, so that the effect of keeping off the rain is achieved; rainwater adhered to the water baffle 60 can flow downwards along the flange 61 and flow out of the water leakage groove 14.

The cleaning plate 4 can extrude water absorbed by the sponge 31 in the sponge box 3 after rain through the drain hole 30, the deflector rod 40 slides in the transverse groove of the deflector rod sliding groove 34 in a shape like a Chinese character '7' to the uppermost end of the vertical groove, the inner plate 41 can be pulled out, the protruding part at the upper end of the sponge 31 is pressed, the inner plate slides to the lower end of the vertical groove, and the water in the sponge 31 can be extruded from the drain hole 30; when the deflector rod 40 is in contact with the slide rod 5 in the process of moving in the vertical slot of the deflector rod chute 34 in the shape of the '7', the slide rod 5 moves the ejector rod 52 on the baffle 50 downwards, and then water stored in the rain receiving box 32 can flow down from the opening of the baffle 50.

Claims

1. A pole-changing speed-regulating three-phase asynchronous motor comprises a body (1), a motor shaft (10) arranged on the body, a fan (11) arranged on the motor shaft, an inner fan cover (12) arranged on the body, an outer fan cover (13) arranged on the body and a rainproof mechanism arranged on the body; the method is characterized in that: the rain-proof mechanism comprises a supporting rod (2), a supporting spring (20) arranged on the supporting rod, a rain receiving component arranged on the supporting rod and a rain shielding component arranged on the inner wind shield.

2. The pole-changing speed-regulating three-phase asynchronous motor according to claim 1, characterized in that: the rain collecting assembly comprises a sponge box (3), a drain hole (30) arranged on the sponge box, a sponge (31) arranged on the sponge box, a cleaning component arranged on the sponge box, a rain collecting box (32) arranged on the sponge box, a rain leaking groove (33) arranged on the sponge box and a water leaking component arranged on the rain collecting box.

3. The pole-changing speed-regulating three-phase asynchronous motor according to claim 2, characterized in that: the cleaning component comprises a cleaning plate (4), an inner plate (41) arranged on the cleaning plate, a shifting lever (40) arranged on the inner plate, an inner plate sliding groove (42) arranged on the cleaning plate, an inner plate spring (43) arranged on the inner plate and a shifting lever sliding groove (34) arranged on the sponge box.

4. The pole-changing speed-regulating three-phase asynchronous motor according to claim 2, characterized in that: the water leakage component comprises a sliding rod (5), a sliding rod groove (35) arranged on the sponge box, a baffle (50) arranged on the rain receiving box, a baffle torsional spring (51) arranged on the baffle and a push rod (52) arranged on the baffle.

5. The pole-changing speed-regulating three-phase asynchronous motor according to claim 1, characterized in that: the rain shielding component comprises a rotating shaft (6), a water baffle (60) arranged on the rotating shaft, a flanging (61) arranged on the water baffle, a first connecting rod (62) arranged on the sponge box, a second connecting rod (63) arranged on the first connecting rod and a water leakage groove (14) arranged on the outer wind shield.