CN205489879U - Improvement nature two -speed motor - Google Patents

Abstract

The utility model discloses an improvement nature two -speed motor, including the motor casing, be provided with the stator slot on the electricity inner surface of shell, it has X winding, Y winding and Z winding to twine in proper order in the stator slot, motor casing axis location department is provided with the main shaft, the outer neck of bearing is installed with the seat hole cooperation on the motor casing, just X winding, Y winding and Z winding move with equilateral triangle mode and first contactor and close switch moving contact and be connected, first contactor moves to run jointly and closes the static contact and be connected with three phase current, and X winding, Y winding and Z winding move with star mode and second contactor and close switch moving contact and be connected, the second contactor move run jointly close action that static contact and three phase current be connected whole device in by the controller control circuit control, do not need plus any mechanical reduction gears, basically need not change the input power of motor, simple structure, the two -speed motor cost has been practiced thrift to the convenient operation high efficiency.

Description

A kind of property improved double-speed motor

Technical field

This utility model relates to technical field of motors, is specially the one property improved double-speed motor.

Background technology

In machining apparatus, in the case of input power is constant, it is sometimes desirable to main shaft can provide high rotating speed, little torsion Square, occasionally wants to main shaft can provide high pulling torque, the slow-speed of revolution as carried out boring, as carried out tapping, in traditional mechanism generally It is to be matched the incompatible switching completing two kinds of rotating speeds by a motor and variator, but this mechanism can make machining apparatus tie Structure complicates, and makes equipment volume relatively big, and manufacturing cost is higher, or inputs original double power to realize the regulation of speed, But would generally exceed motor and bear the limit of peak power, to this end, it is proposed that a kind of property improved double-speed motor.

Utility model content

The purpose of this utility model is to provide a kind of property improved double-speed motor, to solve proposition in above-mentioned background technology Problem.

For achieving the above object, this utility model following technical scheme of offer: a kind of improvement property double-speed motor, including motor Shell, described motor casing inner surface is provided with stator slot, is wound with X winding, Y winding and Z winding, institute in described stator slot successively State and at motor casing axial location, be provided with main shaft, be provided with outside described main shaft at rotor windings, and described main shaft two ends axle journal Coordinating and be provided with bearing, the outer neck of described bearing coordinates installation, and described X winding, Y winding and Z winding with the bore on motor casing Be connected with the first catalyst dynamic circuit connector switch movable contact in equilateral triangle mode, described first catalyst dynamic circuit connector switch static contact with Three phase mains connects, and is provided with overload protective device, X winding, Y winding and Z between the first catalyst dynamic circuit connector switch and three phase mains Winding is connected with the second catalyst dynamic circuit connector switch movable contact in a star fashion, described second catalyst dynamic circuit connector switch static contact and three Phase power supply connects, and is provided with overload protective device, and described first catalyst between the second catalyst dynamic circuit connector switch and three phase mains Dynamic circuit connector switch and the second catalyst dynamic circuit connector switch electrically connect with the first catalyst and the second catalyst respectively, described first catalyst It is connected in parallel with the second catalyst and the 3rd catalyst, described first catalyst and speed-sensitive switch, low speed switch and shutdown switch Be connected in series, described second catalyst and the 3rd catalyst dynamic circuit connector switch be connected in series, and described shutdown switch, low speed switch and Speed-sensitive switch is each attached on controller, and described controller is positioned on motor casing lateral surface.

Preferably, the quantity of described stator slot is six, and the quantity of stator slot is the integral multiple of three, and six stator slots are put down It is distributed on motor casing inner surface.

Preferably, described motor casing axis overlaps with main-shaft axis and bearing axis.

Preferably, described speed-sensitive switch is mechanical linkage switch.

Preferably, it is provided with air switch between described overload protective device and three phase mains.

Compared with prior art, the beneficial effects of the utility model are: this improvement double-speed motor is fixed by changing motor The connected mode of sub-winding changes the magnetic pole logarithm of stator rotating excitation field, so that motor speed is changed, whole dress The action put is controlled by control circuit in controller, it is not necessary to additional any mechanical reduction gear, substantially need not change Become power input to a machine, simple in construction, easy to operate efficiently, saved double-speed motor cost.

Accompanying drawing explanation

Fig. 1 is this utility model structural representation；

Fig. 2 is this utility model stator winding schematic diagram；

Fig. 3 is this utility model control circuit schematic diagram.

In figure: 1 motor casing, 2 X phase windings, 3 stator slots, 4 controllers, 5 shutdown switches, 6 low speed switch, 7 speed-sensitive switches, 8 Y phase windings, 9 bearings, 10 main shafts, 11 rotor windings, 12 Z phase windings, 13 three phase mains, 14 second catalyst dynamic circuit connectors switch, 15 overload protective devices, 16 first catalyst dynamic circuit connector switches, 17 the 3rd catalyst dynamic circuit connector switches, 18 first catalysts, 19 second connect Tentaculum, 20 the 3rd catalysts.

Detailed description of the invention

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

Referring to Fig. 1-3, this utility model provides one technical scheme: one improves property double-speed motor, including motor casing 1, motor casing 1 inner surface is provided with stator slot 3, the quantity of stator slot 3 is six, and the quantity of stator slot 3 is the integral multiple of three, And six stator slots 3 are evenly distributed on motor casing 1 inner surface, be wound with successively in stator slot 3 X winding 2, Y winding 8 and Z around Group 12, is provided with main shaft 10 at motor casing 1 axial location, main shaft 10 is outside is provided with rotor windings 11, and main shaft 10 two end axles Coordinating at neck and be provided with bearing 9, the outer neck of bearing 9 coordinates installation, motor casing 1 axis and main shaft 10 axle with the bore on motor casing 1 Line and bearing 9 dead in line, prevent the main shaft 10 Fast Wearing in running, improves electrical machinery life and efficiency, and X winding 2, Y winding 8 and Z winding 12 switchs 16 moving contacts in equilateral triangle mode with the first catalyst dynamic circuit connector and is connected, the first catalyst Dynamic circuit connector switchs 16 static contacts and is connected with three phase mains 13, is provided with between the first catalyst dynamic circuit connector switch 16 and three phase mains 13 Carry protector 15, between overload protective device 15 and three phase mains 13, be provided with air switch, X winding 2, Y winding 8 and Z winding 12 Switching 14 moving contacts with the second catalyst dynamic circuit connector in a star fashion to be connected, the second catalyst dynamic circuit connector switchs 14 static contacts and three-phase electricity Source 13 connects, and is provided with overload protective device 15, prevents motor in mistake between the second catalyst dynamic circuit connector switch 14 and three phase mains 13 Carry and damage under ruuning situation, and the first catalyst dynamic circuit connector switch 16 and the second catalyst dynamic circuit connector switch 14 respectively with the first catalyst 18 and second catalyst 19 electrically connect, the first catalyst 18 is connected in parallel with the second catalyst 19 and the 3rd catalyst 20, first Catalyst 18 is connected in series with speed-sensitive switch 7, low speed switch 6 and shutdown switch 5, and speed-sensitive switch 7 switchs for mechanical linkage, and second Catalyst 19 is connected in series with the 3rd catalyst dynamic circuit connector switch 17, and shutdown switch 5, low speed switch 6 and speed-sensitive switch 7 are the most fixing On controller 4, controller 4 is positioned on motor casing 1 lateral surface, can directly control by low speed switch 6 and speed-sensitive switch 7 One catalyst dynamic circuit connector switch 16 and the closed and disconnected of the second catalyst dynamic circuit connector switch 14, it is achieved the connection of winding in stator slot 3 The change of mode, thus realize the double speed output of motor, whole apparatus structure is simple, it is to avoid the loaded down with trivial details device of mechanical reduction, Easy to operate, double rotating speed and the output of double torque can be realized in the case of basic invariable power, reduce motor cost.

Embodiment the most of the present utility model, for the ordinary skill in the art, It is appreciated that in the case of without departing from principle of the present utility model and spirit and these embodiments can be carried out multiple change, repair Changing, replace and modification, scope of the present utility model is defined by the appended claims and the equivalents thereof.

Claims (5)

1. the property an improved double-speed motor, including motor casing (1), it is characterised in that: it is provided with on described motor casing (1) inner surface Stator slot (3), is wound with X winding (2), Y winding (8) and Z winding (12), described motor casing (1) successively in described stator slot (3) Being provided with main shaft (10) at axial location, described main shaft (10) is outside is provided with rotor windings (11), and described main shaft (10) two Coordinating at end-journal and be provided with bearing (9), described bearing (9) outer neck coordinates installation, and described X with the bore on motor casing (1) Winding (2), Y winding (8) and Z winding (12) are in equilateral triangle mode with first catalyst dynamic circuit connector switch (16) moving contact even Connecing, described first catalyst dynamic circuit connector switch (16) static contact is connected with three phase mains (13), the first catalyst dynamic circuit connector switch (16) And between three phase mains (13), it being provided with overload protective device (15), X winding (2), Y winding (8) and Z winding (12) are in a star fashion It is connected with second catalyst dynamic circuit connector switch (14) moving contact, described second catalyst dynamic circuit connector switch (14) static contact and three phase mains (13) connect, between the second catalyst dynamic circuit connector switch (14) and three phase mains (13), be provided with overload protective device (15), and described First catalyst dynamic circuit connector switch (16) switchs (14) with the second catalyst dynamic circuit connector and contacts with the first catalyst (18) and second respectively Device (19) electrically connects, and described first catalyst (18) is connected in parallel with the second catalyst (19) and the 3rd catalyst (20), described First catalyst (18) is connected in series with speed-sensitive switch (7), low speed switch (6) and shutdown switch (5), described second catalyst (19) it is connected in series with the 3rd catalyst dynamic circuit connector switch (17), and described shutdown switch (5), low speed switch (6) and speed-sensitive switch (7) being each attached on controller (4), described controller (4) is positioned on motor casing (1) lateral surface.

A kind of property improved double-speed motor the most according to claim 1, it is characterised in that: the quantity of described stator slot (3) is Six, the integral multiple that quantity is three of stator slot (3), and six stator slots (3) are evenly distributed on motor casing (1) inner surface.

A kind of property improved double-speed motor the most according to claim 1, it is characterised in that: described motor casing (1) axis and master Axle (10) axis and bearing (9) dead in line.

A kind of property improved double-speed motor the most according to claim 1, it is characterised in that: described speed-sensitive switch (7) is machinery Gang switch.

A kind of property improved double-speed motor the most according to claim 1, it is characterised in that: described overload protective device (15) and three Phase power supply is provided with air switch between (13).