CN110829721A

CN110829721A - Auxiliary equipment used during motor starting

Info

Publication number: CN110829721A
Application number: CN201911285487.1A
Authority: CN
Inventors: 刘艳康
Original assignee: Dongyang Wulun Electronic Technology Co Ltd
Current assignee: Dongyang Wulun Electronic Technology Co Ltd
Priority date: 2019-12-13
Filing date: 2019-12-13
Publication date: 2020-02-21

Abstract

The invention discloses auxiliary equipment for starting a motor, which comprises an installation box body which can be fixedly installed on the ground, wherein a transformer is fixedly arranged in the installation box body, when the auxiliary motor is started, the auxiliary motor drives a third gear to rotate, the third gear can drive a first gear to rotate, so that an output shaft of the motor in an installation space rotates, the used motor can be installed in a sealed environment, the motor is ensured not to be interfered by other external environments when running, the situation that the motor is blocked due to overcoming of self inertia and self-induction phenomenon when the motor is started can be reduced, the situation that the motor is burnt due to overlarge current of an inner coil after the motor is blocked can be prevented, and the service life of the motor is ensured.

Description

Auxiliary equipment used during motor starting

Technical Field

The invention relates to the field of motors, in particular to auxiliary equipment used for starting a motor.

Background

Motors are used in a large number of industrial fields on a large scale, and in places where heavy-load and high-speed operation is needed, the mass and the volume of the motor are generally large, but when the motor is just started, not only the inertia of the motor needs to be overcome, but also the motor may be stuck after being electrified, and the phenomenon may burn out an internal coil of the motor, influence the service life of the motor, and may cause a fire.

Disclosure of Invention

The object of the present invention is to provide an auxiliary device for starting a motor, which overcomes the above-mentioned drawbacks of the prior art.

According to the embodiment of the invention, the auxiliary equipment for starting the motor comprises an installation box body which can be fixedly installed on the ground, a transformer is fixedly arranged in the installation box body, an installation space for installing and placing the motor is arranged in the installation box body, a first gear space is arranged on the left side of the installation space, a first belt wheel space is arranged on the left side of the first gear space, a driving mechanism which can drive a rotating shaft of the motor installed in the installation space to rotate is arranged in the first belt wheel space and the first gear space, the driving mechanism comprises an auxiliary motor which is fixedly installed in the inner wall of the right side of the first belt wheel space, the transformer is in electric signal connection with the auxiliary motor, a first gear is fixedly installed on a motor output shaft in the installation space, and the auxiliary motor can drive the first gear to rotate, so as to drive the motor in the installation space to pre-move when starting, a timer capable of timing is arranged in the installation box body, the timer can stop the auxiliary motor after the motor in the installation space rotates for three seconds, a second gear space is arranged on the right side of the installation space, a thumb wheel space is arranged on the upper side of the second gear space, a thumb wheel is rotatably arranged in the thumb wheel space, a switch space is arranged on the upper side of the thumb wheel, and a control mechanism capable of controlling the motor movement in the installation space is arranged in the thumb wheel space and the switch space,

control mechanism includes fixed mounting and is in the second gear on the output shaft of motor in the installation space, the thumb wheel space with it is equipped with the push rod to slide between the switch space, the push rod with sliding connection between the thumb wheel, the first contactor of fixed mounting on the top surface in switch space, sliding mounting sliding contactor on the switch space, be equipped with on the diapire in switch space with the second contactor of the power transmission mouth of motor in the installation space, the second gear can drive the thumb wheel rotates, and the thumb wheel drives the thumb wheel upward movement makes first contactor with sliding contactor is linked together, with control motor in the installation space rotates.

On the basis of the technical scheme, the driving mechanism further comprises a first gear shaft which is rotatably installed between the first belt wheel space and the first gear space, a third gear is fixedly installed on the first gear shaft and is meshed with the first gear, a first belt wheel is fixedly installed on the first gear shaft and positioned in the first belt wheel space, a second belt wheel is fixedly installed on a left output shaft of the auxiliary motor, a first belt is installed between the second belt wheel and the first belt wheel in a transmission manner, a hinge rod is hinged and installed on the right inner wall of the first belt wheel space, a first guide wheel is rotatably installed on the hinge rod, the first guide wheel is connected with the first belt, a torsion spring is fixedly installed on the right inner wall of the first belt wheel space, a first permanent magnet is fixedly installed on the hinge rod, and a first electromagnet is fixedly installed on the right inner wall of the first belt wheel space, the first electromagnet is in signal connection with the timer.

On the basis of the technical scheme, the control mechanism further comprises a gear groove which is arranged on the bottom wall of the second gear space and communicated with the second gear space, a second belt wheel space is arranged on the right side of the gear groove, a second gear shaft is rotatably arranged between the gear groove and the second belt wheel space, a fourth gear is fixedly arranged on the second gear shaft and meshed with the second gear, a belt wheel shaft is rotatably arranged between the second belt wheel space and the shifting wheel space, a third belt wheel is fixedly arranged on the belt wheel shaft, a fourth belt wheel is fixedly arranged on the second gear shaft, and a second belt is rotatably arranged between the fourth belt wheel and the third belt wheel.

On the basis of the technical scheme, a sliding seat is fixedly installed on the inner wall of the right side of the second belt wheel space, a second electromagnet is fixedly installed in the sliding seat, sliding rods are symmetrically and slidably installed in the sliding seat in a front-back mode, second permanent magnets are symmetrically and fixedly installed on the sliding rods in a front-back mode, a second guide wheel is rotatably installed on the sliding rods, and the second guide wheel is in contact with the second belt.

On the basis of the technical scheme, the left side of the axial direction of the belt wheel extends through the dial wheel space, the belt wheel shaft is fixedly connected with the dial wheel, a fixed pin is fixedly arranged on the dial wheel, the fixed pin is slidably arranged with the push rod, a first spring is fixedly arranged between the bottom surface of the sliding contactor and the bottom wall of the switch space, third electromagnets are fixedly arranged on the top wall of the switch space in a bilateral symmetry manner, the third electromagnets are electrically connected with the transformer, the sliding contactor can be made of magnetized materials, the third electromagnets can attract the sliding contactor, magnet spaces communicated with the switch space are symmetrically arranged on the left inner wall and the right inner wall of the switch space in the bilateral symmetry manner, ejector rods are slidably arranged in the magnet space in the bilateral symmetry manner, an extrusion sliding plate is fixedly arranged on the ejector rods, and a very large friction force exists between the extrusion sliding plate and the sliding contactor, a fourth electromagnet is fixedly installed in the inner wall of one side of the magnet space and is connected with the transformer through an electric signal, a third permanent magnet is fixedly installed on one side face of the ejector rod, and a second spring is fixedly installed between the third permanent magnet and the fourth electromagnet.

The invention has the beneficial effects that: the motor can be arranged in a sealed environment, the motor can be ensured not to be interfered by other external environments when running, the motor can be driven by the auxiliary motor to rotate after the knife switch is switched on when the motor is started, the motor is controlled to switch on the three-phase power switch connected with the motor to work when rotating, the condition that the motor is blocked due to the fact that inertia of the motor and self-inductance are overcome when the motor is started can be reduced, the condition that the motor is burnt due to overlarge current of an internal coil after the motor is blocked can be prevented, the service life of the motor is ensured, and the motor is worthy of popularization.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic sectional view taken along the line A-A in FIG. 1;

FIG. 3 is an enlarged schematic view of the structure at B in FIG. 1;

FIG. 4 is a schematic cross-sectional view taken along line C-C in FIG. 1;

FIG. 5 is a schematic sectional view of the structure of FIG. 2 taken along the direction D-D;

fig. 6 is a schematic view of the structure in the direction E in fig. 3.

Detailed Description

The invention will now be described in detail with reference to fig. 1-6, wherein for ease of description the orientations described hereinafter are now defined as follows: the up, down, left, right, front and rear directions described below correspond to the front, back, left, right, top and bottom directions of the view direction of fig. 1, fig. 1 is a front view of the apparatus of the present invention, and the directions shown in fig. 1 correspond to the front, back, left, right, top and bottom directions of the apparatus of the present invention.

Referring to fig. 1 to 6, an auxiliary device for starting a motor according to an embodiment of the present invention includes a mounting box 10 that can be fixedly installed on the ground, a transformer 20 is fixedly installed in the mounting box 10, an installation space 11 in which a motor can be installed and placed is installed in the mounting box 10, a first gear space 12 is installed on the left side of the installation space 11, a first pulley space 15 is installed on the left side of the first gear space 12, a driving mechanism that can drive a rotating shaft of the motor installed in the installation space 11 to rotate is installed in the first pulley space 15 and the first gear space 12, the driving mechanism includes an auxiliary motor 36 that is fixedly installed in the inner wall of the right side of the first pulley space 15, the transformer 20 is electrically connected to the auxiliary motor 36, a first gear 13 is fixedly installed on an output shaft of the motor in the installation space 11, the auxiliary motor 36 can drive the first gear 13 to rotate so as to drive the motor in the installation space 11 to perform pre-movement when starting, a timer 37 capable of timing is arranged in the installation box 10, the timer 37 can stop the auxiliary motor 36 after the motor in the installation space 11 rotates for three seconds, a second gear space 22 is arranged on the right side of the installation space 11, a dial wheel space 40 is arranged on the upper side of the second gear space 22, a dial wheel 43 is rotatably arranged in the dial wheel space 40, a switch space 46 is arranged on the upper side of the dial wheel 43, and a control mechanism capable of controlling the motor movement in the installation space 11 is arranged in the dial wheel space 40 and the switch space 46,

control mechanism includes fixed mounting and is in the epaxial second gear 23 of output of the motor in installation space 11, thumb wheel space 40 with it is equipped with push rod 41 to slide between the cubical switchboard space 46, push rod 41 with sliding connection between the thumb wheel 43, the first contactor 45 of fixed mounting on cubical switchboard space 46's the top surface, sliding connection sliding contact 53 on cubical switchboard space 46, be equipped with on cubical switchboard space 46's the diapire with the second contactor 55 of the power transmission mouth of the motor in installation space 11, second gear 23 can drive thumb wheel 43 rotates, and thumb wheel 43 drives thumb wheel 43 upward movement makes first contactor 45 with sliding contact 53 is linked together, with control motor in installation space 11 rotates.

In addition, in one embodiment, the driving mechanism further includes a first gear shaft 14 rotatably installed between the first pulley space 15 and the first gear space 12, a third gear 18 is fixedly installed on the first gear shaft 14, the third gear 18 is engaged with the first gear 13, a first pulley 16 is fixedly installed on the first gear shaft 14 in the first pulley space 15, a second pulley 35 is fixedly installed on a left output shaft of the auxiliary motor 36, a first belt 31 is installed between the second pulley 35 and the first pulley 16 in a transmission manner, an articulated rod 32 is hinged on a right inner wall of the first pulley space 15, a first guide pulley 33 is rotatably installed on the articulated rod 32, the first guide pulley 33 is connected with the first belt 31, a torsion spring 58 is fixedly installed on the rod 32 and the right inner wall of the first pulley space 15, the hinge rod 32 is fixedly provided with a first permanent magnet 56, the inner wall of the right side of the first belt wheel space 15 is fixedly provided with a first electromagnet 57, the first electromagnet 57 is in signal connection with the timer 37, when the auxiliary motor 36 is started, the auxiliary motor 36 drives the second belt wheel 35 to rotate, the first electromagnet 57 is controlled to be electrified, the first electromagnet 57 attracts the first permanent magnet 56, the hinge rod 32 rotates, the first guide wheel 33 can tightly support the first belt 31, the second belt wheel 35 rotates to drive the first belt wheel 16 to rotate, the first belt wheel 16 rotates to drive the third gear 18 to rotate, the third gear 18 rotates to drive the first gear 13 to rotate, and the output shaft of the motor in the installation space 11 rotates.

In addition, in one embodiment, the control mechanism further includes a gear groove 29 disposed on the bottom wall of the second gear space 22 and communicating with the second gear space 22, a second pulley space 28 is disposed on the right side of the gear groove 29, a second gear shaft 25 is rotatably mounted between the gear groove 29 and the second pulley space 28, a fourth gear 24 is fixedly mounted on the second gear shaft 25, the fourth gear 24 is engaged with the second gear 23, a pulley shaft 38 is rotatably mounted between the second pulley space 28 and the dial wheel space 40, a third pulley 39 is fixedly mounted on the pulley shaft 38, a fourth pulley 26 is fixedly mounted on the second gear shaft 25, a second belt 27 is rotatably mounted between the fourth pulley 26 and the third pulley 39, when the output shaft of the motor in the mounting space 11 is driven by the auxiliary motor 36 to rotate, the second gear 23 can be driven to rotate, the second gear 23 rotates to drive the fourth belt pulley 26 to rotate, and the fourth belt pulley 26 rotates to drive the third belt pulley 39 to rotate.

In one embodiment, a sliding seat 59 is fixedly installed on the right inner wall of the second pulley space 28, a second electromagnet 60 is fixedly installed in the sliding seat 59, sliding rods 61 are symmetrically and longitudinally installed in the sliding seat 59, second permanent magnets 62 are symmetrically and fixedly installed on the sliding rods 61, a second guide pulley 30 is rotatably installed on the sliding rods 61, the second guide pulley 30 is in contact with the second belt 27, and when the second electromagnet 60 is controlled to be energized, the second electromagnet 60 sucks the second permanent magnets 62, so that the second permanent magnets 62 and the sliding rods 61 retract into the sliding seat 59, and the second guide pulley 30 tensions the second belt 27.

In addition, in one embodiment, the pulley shaft 38 extends through the pulley space 40 to the left, the pulley shaft 38 is fixedly connected with the pulley 43, a fixing pin 42 is fixedly installed on the pulley 43, the fixing pin 42 is slidably installed between the push rod 41, a first spring 54 is fixedly installed between the bottom surface of the sliding contactor 53 and the bottom wall of the switch space 46, a third electromagnet 44 is fixedly installed on the top wall of the switch space 46 in a bilateral symmetry manner, the third electromagnet 44 is electrically connected with the transformer 20, the sliding contactor 53 may be a magnetizable material, the third electromagnet 44 may attract the sliding contactor 53, the magnet spaces 52 communicated with the switch space 46 are arranged on the left and right inner walls of the switch space 46 in a bilateral symmetry manner, the push rods 48 are slidably installed in the magnet spaces 52 in a bilateral symmetry manner, an extrusion sliding plate 47 is fixedly installed on the ejector rod 48, a large friction force exists between the extrusion sliding plate 47 and the sliding contactor 53, a fourth electromagnet 50 is fixedly installed in the inner wall of one side of the magnet space 52, the fourth electromagnet 50 is in electrical signal connection with the transformer 20, a third permanent magnet 49 is fixedly installed on one side surface of the ejector rod 48, a second spring 51 is fixedly installed between the third permanent magnet 49 and the fourth electromagnet 50, when the power supply is switched on, the fourth electromagnet 50 is controlled to be electrified, the fourth electromagnet 50 pushes the third permanent magnet 49 and the ejector rod 48 to move to extrude towards the sliding contactor 53, the third electromagnet 44 is controlled to be electrified, the sliding contactor 53 can be constantly sucked by the third electromagnet 44, when the third belt wheel 39 rotates to drive the belt wheel shaft 38 to rotate, the belt wheel shaft 38 rotates to drive the dial wheel 43 to rotate, the dial wheel 43 rotates to drive the push rod 41 to slide up and down, when the push rod 41 moves upward, the sliding contactor 53 is pushed upward to contact the first contactor 45, so that the power of the motor in the installation space 11 is turned on, and the motor in the installation space 11 is rotated.

Installing a motor needing auxiliary starting in the installation space 11, meshing the first gear 13 with the third gear 18, meshing the second gear 23 with the fourth gear 24, controlling to pull a three-phase circuit knife switch, controlling to start the auxiliary motor 36 after the voltage is pressed by the transformer 20, driving the second belt wheel 35 to rotate by the auxiliary motor 36, controlling to electrify the first electromagnet 57, attracting the first permanent magnet 56 by the first electromagnet 57, rotating the hinge rod 32, tightening the first belt 31 by the first guide wheel 33, driving the first belt wheel 16 to rotate by the second belt wheel 35, driving the third gear 18 to rotate by the first belt wheel 16, driving the first gear 13 to rotate by the third gear 18, rotating the output shaft of the motor in the installation space 11, timing control on the auxiliary motor 36 and the first electromagnet 57 by the timer 37, stopping the auxiliary motor 36 after the timer 37 times three seconds, the first electromagnet 57 is de-energized,

when the output shaft of the motor in the installation space 11 is driven by the auxiliary motor 36 to rotate, the second gear 23 can be driven to rotate, the second gear 23 rotates to drive the fourth belt wheel 26 to rotate, the transformer 20 can control the second electromagnet 60 to be electrified, the second electromagnet 60 absorbs the second permanent magnet 62, the second permanent magnet 62 and the sliding rod 61 retract into the sliding seat 59, the second guide wheel 30 tensions the second belt 27, the fourth belt wheel 26 rotates to drive the third belt wheel 39 to rotate, the timer 37 counts four seconds, the power of the second permanent magnet 62 is cut off, the second belt 27 is loosened, the third belt wheel 39 cannot drive the fourth belt wheel 26 to rotate,

when the power is switched on, the fourth electromagnet 50 is controlled to be electrified, the fourth electromagnet 50 pushes the third permanent magnet 49 and the ejector rod 48 to move to extrude the sliding contactor 53, the third electromagnet 44 is controlled to be electrified, the third electromagnet 44 can suck the sliding contactor 53 all the time, the fourth electromagnet 50 and the third electromagnet 44 are not controlled by the timer 37, when the knife switch is switched on, the third electromagnet 44 is always in an electrified state, when the third belt wheel 39 rotates to drive the belt wheel shaft 38 to rotate, the belt wheel shaft 38 rotates to drive the thumb wheel 43 to rotate, the thumb wheel 43 rotates to drive the push rod 41 to slide up and down, when the push rod 41 moves upwards, the sliding contactor 53 is pushed upwards to contact with the first contactor 45, the power of the motor in the installation space 11 is switched on, the motor in the installation space 11 rotates to work, if the knife switch is switched on for four seconds, the motor cannot be started normally, the knife switch is re-closed and re-activated.

It will be apparent to those skilled in the art that various modifications may be made to the above embodiments without departing from the general spirit and concept of the invention. All falling within the scope of protection of the present invention. The protection scheme of the invention is subject to the appended claims.

Claims

1. The utility model provides an auxiliary assembly for when motor starts, includes can the subaerial installation box of fixed mounting which characterized in that: a transformer is fixedly arranged in the installation box body, an installation space for installing and placing a motor is arranged in the installation box body, a first gear space is arranged on the left side of the installation space, a first belt wheel space is arranged on the left side of the first gear space, a driving mechanism capable of driving a rotating shaft of the motor arranged in the installation space to rotate is arranged in the first belt wheel space and the first gear space, the driving mechanism comprises an auxiliary motor fixedly arranged in the inner wall of the right side of the first belt wheel space, the transformer is in electric signal connection with the auxiliary motor, a first gear is fixedly arranged on a motor output shaft in the installation space, the auxiliary motor can drive the first gear to rotate so as to drive the motor in the installation space to pre-move when the motor is started, and a timer capable of timing is arranged in the installation box body, the timer can stop the auxiliary motor after the motor in the installation space rotates for three seconds, a second gear space is arranged on the right side of the installation space, a thumb wheel space is arranged on the upper side of the second gear space, a thumb wheel is rotatably arranged in the thumb wheel space, a switch space is arranged on the upper side of the thumb wheel, and a control mechanism capable of controlling the movement of the motor in the installation space is arranged in the thumb wheel space and the switch space,

2. An auxiliary device for use in starting a motor according to claim 1, wherein: the driving mechanism further comprises a first gear shaft which is rotatably installed between the first belt wheel space and the first gear space, a third gear is fixedly installed on the first gear shaft, the third gear is meshed with the first gear, a first belt wheel is fixedly installed on the first gear shaft and positioned in the first belt wheel space, a second belt wheel is fixedly installed on a left output shaft of the auxiliary motor, a first belt is installed between the second belt wheel and the first belt wheel in a transmission manner, a hinge rod is hinged and installed on the right inner wall of the first belt wheel space, a first guide wheel is rotatably installed on the hinge rod, the first guide wheel is connected with the first belt, a torsion spring is fixedly installed on the right inner wall of the first belt wheel space and the hinge rod, a first permanent magnet is fixedly installed on the hinge rod, and a first electromagnet is fixedly installed on the right inner wall of the first belt wheel space, the first electromagnet is in signal connection with the timer.

3. An auxiliary device for use in starting a motor according to claim 1, wherein: the control mechanism further comprises a gear groove which is formed in the bottom wall of the second gear space and communicated with the second gear space, a second belt wheel space is formed in the right side of the gear groove, a second gear shaft is rotatably installed between the gear groove and the second belt wheel space, a fourth gear is fixedly installed on the second gear shaft and meshed with the second gear, a belt wheel shaft is rotatably installed between the second belt wheel space and the shifting wheel space, a third belt wheel is fixedly installed on the belt wheel shaft, a fourth belt wheel is fixedly installed on the second gear shaft, and a second belt is installed between the fourth belt wheel and the third belt wheel in a transmission mode.

4. An auxiliary device for use in starting a motor according to claim 1, wherein: the right side inner wall in second band pulley space is gone up fixed mounting sliding seat, fixed mounting second electro-magnet in the sliding seat, symmetry slidable mounting slide bar around in the sliding seat, symmetry fixed mounting second permanent magnet around on the slide bar, rotate the installation second guide pulley on the slide bar, the second guide pulley with contact between the second belt.

5. An auxiliary device for use in starting a motor according to claim 1, wherein: the left side of the axial direction of the belt wheel extends through the space of the shifting wheel, the shaft of the belt wheel is fixedly connected with the shifting wheel, a fixed pin is fixedly arranged on the shifting wheel, the fixed pin is slidably arranged with the push rod, a first spring is fixedly arranged between the bottom surface of the sliding contactor and the bottom wall of the switch space, third electromagnets are fixedly arranged on the top wall of the switch space in a bilateral symmetry manner, the third electromagnets are electrically connected with the transformer, the sliding contactor can be made of magnetized materials, the third electromagnets can attract the sliding contactor, magnet spaces communicated with the switch space are arranged on the left and right inner walls of the switch space in a bilateral symmetry manner, ejector rods are slidably arranged in the magnet spaces in a bilateral symmetry manner, an extrusion sliding plate is fixedly arranged on the ejector rods, and a very large friction force exists between the extrusion sliding plate and the sliding contactor, a fourth electromagnet is fixedly installed in the inner wall of one side of the magnet space and is connected with the transformer through an electric signal, a third permanent magnet is fixedly installed on one side face of the ejector rod, and a second spring is fixedly installed between the third permanent magnet and the fourth electromagnet.