CN102946166A

CN102946166A - Alternative current asynchronous motor with built-in electromagnetic clutch

Info

Publication number: CN102946166A
Application number: CN2012104848519A
Authority: CN
Inventors: 徐东旭; 徐东升; 张润禄; 徐东山; 时海建; 董崇民; 牛华强
Original assignee: 徐东旭
Priority date: 2012-11-11
Filing date: 2012-11-11
Publication date: 2013-02-27

Abstract

The invention provides an alternative current asynchronous motor with a built-in electromagnetic clutch. A power output shaft of the motor extending out of a machine body is divided into a rotor rotating shaft and a power driving shaft extending out of the machine body, and the electromagnetic clutch specially designed, connected through electromagnetic effect and used for driving to transmit power is added between the rotor rotating shaft and the power driving shaft. The alternative current asynchronous motor is equal to a combined body of a motor shortened in output shaft and an electromagnetic clutch, output of powder is controlled by means of connection and disconnection of a direct current coil power source, an opportunity of power output can be delayed during starting of the motor, and the alternative current asynchronous motor with the built-in electromagnetic clutch is particularly suitable for environments poor in power supply lines in rural areas and greatly reduces requirements on the lines caused by motor loading.

Description

The AC asynchronous motor of built-in electromagnetic arrangement of clutch

Technical field:

The present invention relates to a kind of AC asynchronous motor of built-in electromagnetic arrangement of clutch.

Background technology:

The motor of the various structures of modern market supply all is the output shaft that directly utilizes rotor without exception, drives various plant equipment by multi-form transmission mechanism.

The motor of the direct outputting power of this integral body can satisfy the needs of general production, but such as some specific environments such as remote countrysides, and is special in the process that on-load directly starts, and causes the problems such as difficulty in starting because circuit or condition of power supply are poor.

In addition, built-in electromagnetic clutch device among the present invention has been used existing electromagnetic clutch technology.

Summary of the invention:

Purpose of the present invention provides on a kind of electric machinery needing directly to start than heavy load, realizes the AC asynchronous motor of buffer starting.

Realize the technical measures of goal of the invention, it is the power output shaft that motor is stretched out body, be decomposed into the rotor shaft and the Power Available Shaft two parts that stretch out body of shortening, between the two an additional electromagnetic clutch device custom-designed, that power is transmitted in dependence electromagnetic action connection driving.Version roughly can be described as simply shortening the motor of output shaft and electromagnetic clutch device and combine closely and be complete one; Motor front end cover and arrangement of clutch shell are an overall structure, the input of the direct driving clutch of rotor shaft; The output of arrangement of clutch is the power output shaft of motor (Fig. 1) as a whole.

Fig. 2 is the structural principle schematic diagram of the electromagnetic clutch device of electric machine built-in of the present invention.From the electromagnetic structure Principle Study, clutch outer 1 and driving shaft 2 among the figure can be regarded as the circular electromagnets of entire combination for driven by direct current (electricity) coil 3 merely; Inquire into from the meaning of mechanical movement, driving shaft 2 is to rotate freely at 1 center; Can be subjected to magneticaction in coil 3 "on" positions along rotor of output shaft axle 5 clutch armature 4 in axial sliding, with 5 with the driving shaft 2 adhesives overall operation that is coupled as one; During coil 3 outage, the driving that driving shaft 2 breaks away from rotor of output shaft axle 5 links, and motor internal carries out the dry run of no-output power.(omitting the bearing arrangement that is embodied among Fig. 3 for simplifying the principle explanation).

Such structure, control the output of power with the break-make of dc coil power supply, can delay at motor start-up procedure the opportunity of power output, the advantage that possesses at the motor start-up procedure of large electric current heavy load is apparent, be particularly suitable for using at the relatively poor environment of remote countryside supply line, because the idling lotus starts the starting current that has reduced motor, greatly reduce motor load to the requirement of circuit.

Description of drawings:

Fig. 1 is the structural representation block diagram that motor main body and built-in electromagnetic clutch device are combined as a whole.

Fig. 2 is the structural principle schematic diagram of built-in electromagnetic arrangement of clutch part of the present invention.

Fig. 3 is the integrally-built rough schematic view of the motor of built-in electromagnetic arrangement of clutch.

Among Fig. 1: the motor of output shaft is shortened in the D representative; Z is the output shaft of its shortening; L represents electromagnetic clutch device; S is the power output shaft of the rear integrated motor of combination; Arrow line among the figure between D and the L, the structure that both essence are integrated before and after the expression.

Other each map logo Unified number is as follows:

1 is clutch outer; 2 is driving shaft; 3 is dc coil; 4 are clutch armature; 5 is rotor of output shaft axle; 6 is the electric motor end cap in conjunction with clutch outer; 7 is spring bearing; 8 is the spring bearing chamber at end cap 6 centers supporting 7; 9 is intershaft bearing; 10 is the spline matching part.

Embodiment: further introduce the specific embodiment of the present invention below in conjunction with accompanying drawing.

Embodiment one: be simplified illustration, omitted the irrelevant parts of stator module and other and summary of the invention, among Fig. 3 of simplified schematic, the arrangement of clutch center that is combined as a whole with electric motor end cap 6 studs with spring bearing 7; The driving shaft 2 that studs with intershaft bearing 9 inserts in 7, with clutch outer 1 and the coil 3 common circular electromagnets that form; The rotor of output shaft axle 5 of equipped clutch armature 4 is inserted in the intershaft bearing 9, and clutch armature 4 can slide along the axial trace of rotor of output shaft axle 5 with spline 10 guiding.

In integrated motor, take rotor as the main rotating parts combination that forms, be to be inserted in the combination that links driving shaft 2 and rotor of output shaft axle 5 between the two end cap spring bearing 7, with intershaft bearing 9.When coil 3 energising, rotor of output shaft axle 5 is combined as a whole because of clutch armature 4 with driving shaft 2; Both separate during coil 3 outage, and intershaft bearing 9 substitutes the spring bearing 7 of driving shaft 2, and rotor partly breaks away from the voluntarily dry run of no-output power of driving shaft 2.

The structure of electromagnetic clutch device of the present invention comes from the electromagnetic clutch technology of background, be not described in detail driving shaft for example 2 self the magnetic pole isolation, with overcoat 1 between the gap of relative running, and with the problems such as material of armature 4 contact-making surfaces.

Claims

1. the AC asynchronous motor of a built-in electromagnetic arrangement of clutch is characterized in that: the motor that shortens output shaft and electromagnetic clutch device are combined closely is complete one; Motor front end cover and arrangement of clutch shell are an integral body; The direct driving clutch input of rotor of output shaft axle; Arrangement of clutch is output as the power output shaft of integrated motor.

2. the AC asynchronous motor of described built-in electromagnetic arrangement of clutch according to claim 1, the built-in electromagnetic arrangement of clutch is characterised in that: the circular electromagnets that is formed by clutch outer (1), driving shaft (2) and dc coil (3), and can be along rotor drive shaft (5) the common composition of clutch armature (4) in axial sliding.

3. the AC asynchronous motor of described built-in electromagnetic arrangement of clutch according to claim 1, it is characterized in that: at the spring bearing (7) of inlaying in conjunction with electric motor end cap (6) center of clutch, insertion studs with the driving shaft (2) of intershaft bearing (9), forms circular electromagnets with coil (3); The rotor of output shaft axle (5) of the equipped clutch armature (4) of band spline (10) is inserted in the intershaft bearing (9).