CN203278715U

CN203278715U - Single-phase motor for lifting device

Info

Publication number: CN203278715U
Application number: CN 201320261254
Authority: CN
Inventors: 陈亮
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-05-15
Filing date: 2013-05-15
Publication date: 2013-11-06
Anticipated expiration: 2023-05-15

Abstract

The utility model relates to a single-phase motor for a lifting device. The single-phase motor comprises a primary winding, a secondary winding, a running capacitor, and a starting capacitor connected in series with a switch. Under the circumstances that the voltage of a power supply is not changed, an alternating-current contactor is used for changing a connecting method of a motor winding; and two work circuits of lifting and declining are provided. In the declining work circuit, the secondary winding and the main winding are connected in series and the two windings carry out voltage dividing work; and the capacitors are connected in parallel to one of the windings and thus currents of the motor winding generates a phase difference to generate a starting torque, so that the reverse work current of the motor can be substantially reduced and defects of high reverse energy consumption, heavy noise, and strong vibration due to heavy current generation can be overcome. A problem that the existing single-phase motor can not be used by a hoisting machine or a lifting machine can be solved and thus the blank in the country is filled. On the basis of the wiring method, the single-phase motor can be applied to a machine requiring that a motor can work at different powers, thereby achieving an objective of energy conservation.

Description

A kind of jacking equipment monophase machine

Technical field

The utility model relates to a kind of motor, particularly a kind of jacking equipment monophase machine.

Background technology

Present single-phase two-capacitance capacitive motor application on lifting machine or elevation and subsidence mechanical when weight rises and descend, all adopt the same mode of connection in parallel with main winding after the auxiliary winding series capacitance, when weight descends due to the effect of acceleration of gravity, the electric current of machine operation winding is raise, because the increase with electric current of the electromagnetic noise of motor and electric and magnetic oscillation increases, often cause the adverse consequencess such as motor high energy consumption, strong noise, high vibrations when descending.Limited the application of monophase machine on lifting machine.

Summary of the invention

The technical problems to be solved in the utility model is for the deficiencies in the prior art, has proposed a kind of jacking equipment monophase machine that can reach low current, low energy consumption, low noise and low vibrations when the decline inverted running.

The technical problems to be solved in the utility model is achieved through the following technical solutions, a kind of jacking equipment monophase machine, comprise main winding, auxiliary winding, operation electric capacity, the start-up capacitance of connecting with switch, be characterized in: comprise rising connection circuit and decline connection circuit

The outlet head end of main winding is set to I number lead-in wire, and the outlet tail end of main winding is set to II number lead-in wire; The outlet head end of auxiliary winding is set to III number lead-in wire, and the outlet tail end of auxiliary winding is set to IV number lead-in wire; The outlet head end of operation electric capacity is set to V number lead-in wire, and the outlet tail end of operation electric capacity is set to VI number lead-in wire; Start-up capacitance is set to VII number lead-in wire with operation Capacitance parallel connection and start-up capacitance leading-out terminal, and switch wire outlet terminal is set to VIII number lead-in wire,

The rising connection circuit forms the rising operating circuit by controlling components and parts and motor, and the rising operating circuit comprises: I, III number lead-in wire join with one of power supply after joining; IV, V number lead-in wire join; After joining, II, VI number lead-in wire joins with another of power supply;

The decline connection circuit forms the decline operating circuit by controlling components and parts and motor, and the decline operating circuit comprises: I number lead-in wire joins with one of power supply; II, III, V number lead-in wire join; After joining, IV, VI number lead-in wire joins with another of power supply.

The technical problems to be solved in the utility model can also be come further realization by the following technical programs, and described control components and parts are the A.C. contactor group.

The utility model compared with prior art, is to change the motor winding connection method in the situation that supply voltage is constant by A.C. contactor, and rising, two kinds of operating circuits of decline are provided.In the decline operating circuit, auxiliary winding is connected with main winding, make two windings produce dividing potential drop work, electric capacity is attempted by in one of them winding, make the motor winding current produce phase difference and produce starting torque, greatly reduce like this reverse operation electric current of motor, the kinetic energy that utilizes weight decline self to produce moves motor under small-power, has realized the low vibrations of low noise low energy consumption.Eliminated the shortcoming that produces reverse high energy consumption, strong noise, high vibrations because of large electric current.Solve present monophase machine and can not in the situation of lifting machine or elevation and subsidence mechanical use, fill up a domestic blank.Also can be used for this mode of connection the machinery that the requirement motor is worked under different capacity, reach energy-conservation purpose.If any load require motor power when starting larger, be operated in after electric motor starting under the little operating mode of power, can move switching to after electric motor starting under small-power, reach energy-saving effect.

Description of drawings

Fig. 1 is the schematic diagram of rising operating circuit.

Fig. 2 is the schematic diagram of decline operating circuit.

Fig. 3 is for controlling electrical schematic diagram.

Embodiment

A kind of jacking equipment monophase machine, comprise main winding 1, auxiliary winding 2, operation electric capacity 3, the start-up capacitance 4 of connecting with switch 5, comprise rising connection circuit and decline connection circuit, rising connection circuit and decline connection circuit are equipped with six normally opened contacts and a normally-closed contact

As Fig. 1, the rising connection circuit forms the rising operating circuit by controlling components and parts and motor, and the rising operating circuit comprises: I, III number lead-in wire join with one of power supply after joining; IV, V number lead-in wire join; After joining, II, VI number lead-in wire joins with another of power supply; Start-up capacitance joins with operation Capacitance parallel connection VII number lead-in wire and IV number lead-in wire and/or V number lead-in wire, and VIII lead-in wire and II, VI number lead-in wire join or direct and power line joins;

As Fig. 2, the decline connection circuit forms the decline operating circuit by controlling components and parts and motor, and the decline operating circuit comprises: I number lead-in wire joins with one of power supply; II, III, V number lead-in wire join; After joining, IV, VI number lead-in wire joins with another of power supply; The good mode of connection that can manage VII, VIII number lead-in wire of the operating state of switch do not need start-up capacitance and operation Capacitance parallel connection under this state, in the situation that can disconnect VII and/or VIII number lead-in wire yet.

Described control components and parts comprise the A.C. contactor group, but are not limited to the A.C. contactor group.Can also realize by the components and parts with switching function.

As Fig. 3, when pressing rising button SB1, A.C. contactor KM1 and KM2 adhesive, 6 normally opened contacts that A.C. contactor KM1 is corresponding with KM2 are all closed, complete the wiring of motor rising circuit, and in figure, the normally-closed contact of KM1 is opened simultaneously, make the decline circuit inoperative, when unclamping rising button SB1,6 normal battles that A.C. contactor KM1 is corresponding with KM2 all disconnect, and motor quits work.

When pressing decline button SB2, A.C. contactor KM3 and KM4 adhesive, 6 normal all closures of making war that A.C. contactor KM3 is corresponding with KM4, the normally-closed contact of KM4 disconnects simultaneously, completes the wiring of motor decline circuit, and in figure, the KM3 normally-closed contact is opened simultaneously, make the decline circuit inoperative, when unclamping decline button SB2,6 normal battles that A.C. contactor KM3 is corresponding with KM4 all disconnect, and motor quits work.

Claims

1. jacking equipment monophase machine comprises main winding, auxiliary winding, operation electric capacity, the start-up capacitance of connecting with switch, it is characterized in that: comprise rising connection circuit and decline connection circuit,

2. jacking equipment monophase machine according to claim 1, it is characterized in that: described control components and parts are the A.C. contactor group.