CN206775354U

CN206775354U - A kind of threephase asynchronous

Info

Publication number: CN206775354U
Application number: CN201720510368.1U
Authority: CN
Inventors: 金杰
Original assignee: Shanghai Tengyu Energy Saving Technology Co Ltd
Current assignee: Shanghai Tengyu Energy Saving Technology Co Ltd
Priority date: 2017-05-09
Filing date: 2017-05-09
Publication date: 2017-12-19
Anticipated expiration: 2027-05-09

Abstract

The utility model discloses a kind of threephase asynchronous, including motor casing, the side of the motor casing is fixedly connected with drive end bearing bracket, side of the drive end bearing bracket away from motor casing is connected with rotating shaft, and one end of rotating shaft sequentially passes through drive end bearing bracket and motor casing and extends to the inside of motor casing, the opposite side of the motor casing is connected with rear end cap, the preceding surface of the motor casing is provided with radiating ribs, the preceding surface of the motor casing is also fixedly connected with terminal box, the bottom of the terminal box is from left to right connected with the first connector lug in turn, second connector lug and the 3rd connector lug, the side of the terminal box is connected with interface.The threephase asynchronous, the use of terminal box, the first connector lug, the second connector lug and the 3rd connector lug that terminal box is provided with, the mode of connection and the extraction of motor winding can be changed, the power of motor can be adjusted, solve the problems, such as that motor power (output) is low.

Description

A kind of threephase asynchronous

Technical field

Motor technology field is the utility model is related to, specially a kind of threephase asynchronous.

Background technology

The rotating speed of three-phase asynchronous motor rotor is less than the rotating speed of rotating excitation field, and rotor windings are because there is phase between magnetic field Electromotive force and electric current are produced to motion, and electromagnetic torque is produced with magnetic field interaction, realizes energy conversion.

Compared with monopole asynchronous motor, threephase asynchronous runnability is good, and can save various materials.By rotor The difference of structure, threephase asynchronous can be divided into two kinds of cage and Wound-rotor type.The Induction Motor Structure of cage rotor is simple, It is reliable, in light weight, cheap, it is widely used, its major defect is speed governing difficulty.Wound-rotor type is phase asynchronous The rotor and stator of motor are equally also provided with three-phase windings and are connected by slip ring, brush with outside rheostat.Regulation becomes Resistance device resistance can improve the starting performance of motor and the rotating speed of regulation motor.

Existing threephase asynchronous power is relatively small, relatively slow in terms of braking, it is impossible to timely carries out Work, reduces operating efficiency, while existing threephase asynchronous structure is not firm enough, at work, event easily occurs Barrier, adds maintenance cost.

Utility model content

(1) technical problem solved

In view of the shortcomings of the prior art, the utility model provides a kind of threephase asynchronous, solves phase asynchronous The problem of electric motor operation efficiency is low.

(2) technical scheme

To realize object above, the utility model is achieved by the following technical programs：A kind of threephase asynchronous, Including motor casing, the side of the motor casing is fixedly connected with drive end bearing bracket, and the drive end bearing bracket is away from motor casing Side be connected with rotating shaft, and one end of rotating shaft sequentially passes through drive end bearing bracket and motor casing and extends to the interior of motor casing Portion, the opposite side of the motor casing are connected with rear end cap, and the preceding surface of the motor casing is provided with radiating ribs, the electricity The preceding surface of motivation shell is also fixedly connected with terminal box, and the bottom of the terminal box is from left to right connected with the first wiring in turn Head, the second connector lug and the 3rd connector lug, the side of the terminal box are connected with interface, and the top of the motor casing is fixed Suspension ring are connected with, the side of the rear end cap is connected with key axle by the first bolt thread.

Preferably, side of the terminal box away from motor casing is fixedly connected with connector cover by the second bolt, And the second bolt is distributed in the corner of connector cover.

Preferably, the drive end bearing bracket is threadedly coupled by the 3rd bolt with the side of motor casing, and the 3rd bolt The surface of drive end bearing bracket is distributed in a manner of annular array.

Preferably, the both sides of the rear end cap are brought into close contact by the 4th bolt.

Preferably, the surface of the rear end cap offers ventilating opening.

(3) beneficial effect

The utility model provides a kind of threephase asynchronous.Possesses following beneficial effect：

(1), the threephase asynchronous, by the use of terminal box, the first connector lug that terminal box is provided with, second connect The end of a thread and the 3rd connector lug, the mode of connection and the extraction of motor winding can be changed, the power of motor can be adjusted, solved The problem of motor power (output) is low, ensure that the braking of motor is quick, improves the operating efficiency of motor, pass through drive end bearing bracket With the use of rear end cap, the sound construction of motor is ensure that, reduces maintenance cost, the motor has pole-changing windingses and had Level speed change and power match rationally, can fast braking, be accurately positioned and brake reliable, sound construction, working service conveniently etc. Advantage, suitable for tower crane jib lubbing mechanism and all kinds of plant equipment for requiring reciprocating operation, frequently playing braking.

(2), the threephase asynchronous, by the setting of radiating ribs and ventilating opening, the radiating of motor is facilitated, ensured The temperature of motor interior keeps stable, can allow electric motor normal working, improves the operating efficiency of motor, facilitates The use of motor.

Brief description of the drawings

Fig. 1 is the utility model structure diagram；

Fig. 2 is the utility model structural side view.

In figure：1 motor casing, 2 rotating shafts, 3 drive end bearing brackets, 4 rear end caps, 5 radiating ribs, 6 terminal boxes, 7 first connector lugs, 8 Second connector lug, 9 the 3rd connector lugs, 10 interfaces, 11 suspension ring, 12 first bolts, 13 key axles, 14 second bolts, 15 connector covers, 16 the 3rd bolts, 17 the 4th bolts, 18 ventilating openings.

Embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made The every other embodiment obtained, belong to the scope of the utility model protection.

Fig. 1-2 is referred to, the utility model provides a kind of technical scheme：A kind of threephase asynchronous, including motor Shell 1, the side of motor casing 1 are fixedly connected with drive end bearing bracket 3, and drive end bearing bracket 3 passes through the 3rd bolt 16 and motor casing 1 Side is threadedly coupled, and the 3rd bolt 16 is distributed in the surface of drive end bearing bracket 3 in a manner of annular array, and drive end bearing bracket 3 is away from electricity The side of motivation shell 1 is connected with rotating shaft 2, and one end of rotating shaft 2 sequentially passes through drive end bearing bracket 3 and motor casing 1 and extended to The inside of motor casing 1, the opposite side of motor casing 1 are connected with rear end cap 4, and the both sides of rear end cap 4 pass through the 4th bolt 17 are brought into close contact, and the effect of the 4th bolt 17 is to allow the both sides of rear end cap 4 to clamp, because rear end face is an entirety, be for It is set in above motor, it is therefore desirable to the both sides of rear end cap 4 are clamped by the 4th bolt 17, the energy of rear end cap 4 is allowed with this It is enough tightly to wrap motor, and will not fall off, it ensure that rear end cap 4 can protect motor, the surface of rear end cap 4 Ventilating opening 18 is offered, ventilating opening 18 is for divulging information, and the preceding surface of motor casing 1 is provided with radiating ribs 5, radiating ribs 5 Effect is motor can be allowed quickly to radiate, and ensure that the constant of motor interior temperature, and motor can be allowed prolonged Normal work, the preceding surface of motor casing 1 are also fixedly connected with terminal box 6, and terminal box 6 can be used for changing the wiring of winding Mode and extraction, side of the terminal box 6 away from motor casing 1 are fixedly connected with connector cover 15 by the second bolt 14, and And second bolt 14 be distributed in the corner of connector cover 15, the bottom of terminal box 6 is from left to right connected with the first connector lug in turn 7th, the second connector lug 8 and the 3rd connector lug 9, the first connector lug 7, the second connector lug 8 and the 3rd connector lug 9 can change motor The mode of connection of winding and extraction, can adjust the power of motor, and the side of terminal box 6 is connected with interface 10, outside motor The top of shell 1 is fixedly connected with suspension ring 11, and the side of rear end cap 4 is threaded with key axle 13, key axle 13 by the first bolt 12 Effect be key connection assembling in, key axle 13 be for connection to parts on shaft and they are served it is circumferentially fixed, to reach Transmit a kind of machine components of moment of torsion.

In summary, the threephase asynchronous, by the use of terminal box 6, the first connector lug that terminal box 6 is provided with 7th, the second connector lug 8 and the 3rd connector lug 9, the mode of connection and the extraction of motor winding can be changed, motor can be adjusted Power, solve the problems, such as that motor power (output) is low, ensure that the braking of motor is quick, improve motor work effect Rate, by the use of drive end bearing bracket 3 and rear end cap 4, the sound construction of motor is ensure that, reduces maintenance cost；The motor With pole-changing windingses and step speed change and power match rationally, can fast braking, be accurately positioned and brake that reliable, structure is firm Gu, working service the advantages that facilitating, suitable for tower crane jib lubbing mechanism and it is all kinds of require reciprocating operation, the machinery for frequently playing braking is set It is standby.

Meanwhile by the setting of radiating ribs 5 and ventilating opening 18, the radiating of motor is facilitated, ensure that motor interior Temperature keep stable, can allow electric motor normal working, improve the operating efficiency of motor, facilitate making for motor With.

It should be noted that herein, such as first and second or the like relational terms are used merely to a reality Body or operation make a distinction with another entity or operation, and not necessarily require or imply and deposited between these entities or operation In any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to Nonexcludability includes, so that process, method, article or equipment including a series of elements not only will including those Element, but also the other element including being not expressly set out, or it is this process, method, article or equipment also to include Intrinsic key element.In the absence of more restrictions.By sentence " including one ... the key element limited, it is not excluded that Other identical element in the process including the key element, method, article or equipment also be present ".

While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art, It is appreciated that these embodiments can be carried out with a variety of changes in the case where not departing from principle of the present utility model and spirit, repaiied Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.

Claims

1. a kind of threephase asynchronous, including motor casing (1), it is characterised in that：The side of the motor casing (1) Drive end bearing bracket (3) is fixedly connected with, side of the drive end bearing bracket (3) away from motor casing (1) is connected with rotating shaft (2), and rotating shaft (2) one end sequentially passes through drive end bearing bracket (3) and motor casing (1) and extends to the inside of motor casing (1), described electronic The opposite side of machine shell (1) is connected with rear end cap (4), and the preceding surface of the motor casing (1) is provided with radiating ribs (5), described The preceding surface of motor casing (1) is also fixedly connected with terminal box (6), and the bottom of the terminal box (6) from left to right connects successively The first connector lug (7), the second connector lug (8) and the 3rd connector lug (9) are connected to, the side of the terminal box (6) is connected with interface (10) suspension ring (11), are fixedly connected with the top of the motor casing (1), the side of the rear end cap (4) passes through the first spiral shell Bolt (12) is threaded with key axle (13).

A kind of 2. threephase asynchronous according to claim 1, it is characterised in that：The terminal box (6) is away from electronic The side of machine shell (1) is fixedly connected with connector cover (15) by the second bolt (14), and the second bolt (14) is distributed in The corner of connector cover (15).

A kind of 3. threephase asynchronous according to claim 1, it is characterised in that：The drive end bearing bracket (3) passes through the 3rd Bolt (16) is threadedly coupled with the side of motor casing (1), and the 3rd bolt (16) is distributed in a manner of annular array The surface of drive end bearing bracket (3).

A kind of 4. threephase asynchronous according to claim 1, it is characterised in that：The both sides of the rear end cap (4) lead to The 4th bolt (17) is crossed to be brought into close contact.

A kind of 5. threephase asynchronous according to claim 1, it is characterised in that：Open on the surface of the rear end cap (4) Provided with ventilating opening (18).