CN200959543Y

CN200959543Y - Speed-variable motor

Info

Publication number: CN200959543Y
Application number: CN 200620131377
Authority: CN
Inventors: 黄式彬; 黄祥益
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-08-23
Filing date: 2006-08-23
Publication date: 2007-10-10
Anticipated expiration: 2016-08-23

Abstract

The utility model discloses a variable speed motor, one shell is provided with multilayer containers which are different in diameter and arranged in a concentric step-shaped, one end of the container is a closed end, the other end is an opening end, the closed end is arranged with a shaft hole for axis penetrating, a bearing is provided in the shaft hole; a multi-group coil, which is motor coil, is arranged in each container of the shell; an axis, which is disposed in the center of the shell, one end of which runs through the bearing reserved by the shell; a multi-plate rotary table, which is made of adiabatic magnetic material, the lateral side of each plate is provided with a magnet with different diameter, is connected with the axis by unidirectional bearings and arranged in a step-shaped, and is respectively combined with each container mutually correspondingly, so each coil corresponded to the magnet of each plate rotary table, the rotary table of the container drives the axis to rotate by controlling the movement of each coil; a shell cover, which is used to cover the container opening of the shell, is arranged with a bearing in the position of axis penetrating.

Description

Variable speed driver

Technical field

The utility model relates to a kind of variable speed driver, relates in particular to a kind of being reached by speed change and takes into account high torsion of low speed and the very fast variable speed driver of high commentaries on classics.

Background technology

General motor is controlled the rotating speed of axle center of motor by current strength, if and described motor walking-replacing tool, for example steam turbine car, motor treadmill or machine-tool, during as the power core of lathe, drilling machine, milling machine etc., the speed change gear that needs to arrange in pairs or groups is brought into play maximum efficient more, and speed change gear is speed-changing gear box or belt continuous variable speed or the like usually.

Secondly, the variable speed driver that tradition is common, shown in TaiWan, China patent announcement No. 318635 " coaxial gear motor ", it is mainly with the motor of the single output of an internal rotary type, cooperate a train of reduction gears to form, it utilizes the rotating speed control of motor frequency conversion to cooperate the fixing speed reducing ratio of train of reduction gears, and the power of required rotating speed is provided.

Above-mentioned problem is that the gear mechanism in the gearbox need come lubricating maintenance with gear oil, also can produce the noise of certain degree during running, and the belt continuous variable speed also has the shortcoming of belt slack or fracture and the abrasion of other speed change part, therefore, how to develop efficient variable speed driver, just become this novel main purpose.

Secondly, above-mentioned coaxial gear motor has following shortcoming in operation, be respectively:

1. the change complete set of variable speed driver output shaft rotating speed utilizes the frequency conversion mode directly to control by single motor, so when output shaft changes rotating speed, can't smooth-going conversion rate.

2. the train of reduction gears speed reducing ratio of variable speed driver is fixing, and by single motor Direct Conversion control output shaft rotating speed, so little between its output shaft rotating speed variable region, thus its speed reducing ratio scope is more narrow.

3. variable speed driver utilizes single motor directly to control the output shaft rotating speed, so during output shaft low speed, motor need be and then with low-speed running, takes place so easily produce the problem points that moment of torsion control is difficult for during motor starting.

Therefore,, how to solve the shortcoming of above-mentioned coaxial variable speed driver, just become this novel problem points that overcomes of looking forward in view of above-mentioned.

The utility model content

Main purpose of the present utility model is to provide a kind of variable speed driver, and this motor output shaft can smooth-going ground speed change, can enlarge the speed increasing ratio scope, and can be easy to multinomial functions such as driving.

The utility model is to adopt following technological means to realize:

A kind of variable speed driver, it comprises: a housing, inside have the different room of multilayer diameter and are concentric stepped arrangement, then are provided with bearing at the axle center through part; Coil, for motor coil promptly: stator, the ring be located in each layer room of above-mentioned housing;

One axle center is positioned at the central authorities of housing, and an end is in the default bearing of above-mentioned housing;

The multi-disc rotating disk, made for cutting off the magnetic material, every outer ring is provided with magnet and diameter difference, all be coupling and stepped arrangement with unilateral bearing and axle center, and respectively with the mutual corresponding matching of each layer room so that each layer line circle corresponds respectively to the magnet on each sheet rotating disk, by the action of each layer line circle of control so that be positioned at the rotating disk of this layer room and drive the axle center and rotate; And

One cap in order to the room opening of closure casing, and is provided with bearing in the axle center through part.

According to above-mentioned variable speed driver, wherein, the blind end of housing can be with cap sealing, and the axis hole of these cap central authorities then is provided with bearing.

The utility model compared with prior art has following remarkable advantages and beneficial effect:

Driving the axle center by the rotating disk that changes different-diameter rotates, speed when high torsion in the time of can taking into account low the commentaries on classics simultaneously and high the commentaries on classics, more can see through reducing gear or machine-tool direct and electric walk instead instrument or any palpus speed change: the power transmission shaft as lathe, milling machine, drilling machine etc. is connected, can make walking-replacing tool or machine-tool have the function of multistage speed change again by the cooperation of relevant control circuit, to replace traditional speed-changing gear box or belt drive system.

The change of variable speed driver output shaft rotating speed can be driven the axle center by the rotating disk of different-diameter and rotate control, the smooth-going conversion rate of energy when making output shaft change rotating speed; Again, variable speed driver is not to use the gear train speed change, thus when directly controlling the output shaft rotating speed by motor, unrestricted between output shaft rotating speed variable region, thus its variator ratio range is extensive; Moreover variable speed driver is directly controlled the output shaft rotating speed, can not be difficult for taking place to start difficulty because of moment of torsion control when motor starting.

Description of drawings

Fig. 1 is the three-dimensional exploded view of the utility model variable speed driver;

Fig. 2 is the three-dimensional combination figure of the utility model variable speed driver;

Fig. 3 is the full sectional view of the utility model variable speed driver.

Embodiment

Below in conjunction with accompanying drawing specific embodiment of the utility model is illustrated:

As shown in Figure 1, be three-dimensional exploded view of the present utility model, by among the figure as can be known variable speed driver 10 comprise a housing 1, organize coil 2 more, an axle center 3, organize more rotating disk 4, and a cap 5 is formed, the outward appearance after it makes up as shown in Figure 2, section is then as shown in Figure 3.

In above-mentioned, this housing 1 inside has the different room of multilayer diameter 11 and is concentric stepped arrangement, and 3 through parts are provided with bearing 12 in the axle center, and 2 of described coils are located in each layer room 11.Again, rotating disk 4 has multi-disc, its sheet number equates with the number of plies of room 11, but every outer ring is provided with magnet 42 and diameter difference, all be coupling and stepped arrangement with unilateral bearing 41 and axle center 3, and respectively with each layer room 11 mutual corresponding matching so that aforementioned each layer line circle 2 corresponds respectively to the magnet 42 on each sheet rotating disk 4, action by each layer of control room coil 2 drives axle center 3 rotations so that be positioned at the rotating disk 4 of this layer room, reach the effect of multistage speed change, wherein the speed change gear is decided on the number of plies of room 11.Secondly, rotating disk 4 is made by exhausted magnetic material, can prevent rotating disk 41 mutual interference mutually of magnet 42 with the different layers of different layers, magnet 42 then can by bind, spiral shell is solid ... or the like generally the known mode of industry be fixed on the rotating disk 41.Moreover, 5 room openings of cap in order to closure casing 1, and in the axle center 3 through parts are provided with bearing 51.

In above-mentioned, housing 1 one ends are closed, and end is the opening shape in addition; Only except aforesaid state, housing 1 also can be implemented by following structure, is all opening-like (not shown) in two ends, so housing 1 is as the straight tube of circle, the one end combines with housing 1 locking with bolt as above-mentioned cap 5, combines and hold in addition to remain with cap 5 and housing 1 locking; Execution mode can be beneficial to the manufacturer combination is installed thus.

To sum up institute is old, variable speed driver 10 then can be controlled gear shifting operation with manual or computer by the interlock circuit design, with this power core as electric walk instead instrument or machine-tool, it can overcome many conventional gears gearboxes or bel-drivenn problem points, as noise, maintenance, durability etc.

It should be noted that at last: above embodiment only in order to the explanation the utility model and and the described technical scheme of unrestricted the utility model; Therefore, although this specification has been described in detail the utility model with reference to each above-mentioned embodiment,, those of ordinary skill in the art should be appreciated that still and can make amendment or be equal to replacement the utility model; And all do not break away from the technical scheme and the improvement thereof of the spirit and scope of utility model, and it all should be encompassed in the middle of the claim scope of the present utility model.

Claims

1, a kind of variable speed driver (10) comprising: a housing, organize coil, an axle center and a cap more; It is characterized in that:

A described housing (1), inside have the different room of multilayer diameter (11) and are concentric stepped arrangement, and the one end is a blind end, are openend in addition, an axis hole that supplies axle center (3) to run through is set at the blind end place, and bearing (12) is set in the axis hole;

Described many group coils (2) are motor coil, and ring is located in each layer room (11) of above-mentioned housing (1);

A described axle center (3) is positioned at the central authorities of housing (1), and an end is in the default bearing (12) of above-mentioned housing (1); And

Multi-disc rotating disk (4), made for cutting off the magnetic material, every outer ring is provided with magnet (42) and diameter difference, all be coupling and stepped arrangement with unilateral bearing (41) and axle center (3), and respectively with each layer room (11) mutually corresponding matching drive axle center (3) rotation by the action of each layer line circle (2) of control so that be positioned at the rotating disk (4) of this layer room (11) so that each layer line circle (2) corresponds respectively to the magnet (42) on each sheet rotating disk (4);

A described cap (5), in order to room (11) opening of closure casing (1), and in the axle center (3) through part is provided with bearing (51).

2, variable speed driver as claimed in claim 1 (10) is characterized in that: the blind end of housing (1) can be with cap sealing, and the axis hole of these cap central authorities then is provided with bearing (12).