CN101626190B - Anti-rotation device of cylindrical linear motor and method thereof - Google Patents

Abstract

An anti-rotation device and method thereof for a cylindrical linear motor. The cylindrical linear motor includes: a cylindrical motor stator and a motor mover that moves linearly in the motor stator. The anti-rotation device includes: A fixed block matched with the motor stator and a fixed shaft matched with the fixed block, wherein the motor mover is provided with a longitudinal slot, and the fixed block is provided with a first hole and a second hole opposite to each other, After the fixed shaft passes through the third hole, passes through the slot, and then enters the first hole. In the present invention, by adding a fixed block and a fixed shaft matched with the fixed block, a longitudinal slot is provided on the motor mover, and the fixed shaft passes through the slot to the fixed block, thereby preventing the motor mover from It rotates relative to the stator of the motor to meet the requirements of special industries for cylindrical linear motors to be relatively stationary in the circumferential direction.

Description

Anti-rotation device and method for cylindrical linear motor

【Technical field】

The invention relates to an anti-rotation device and method for preventing a motor mover from rotating in a motor stator on a cylindrical linear motor.

【Background technique】

Cylindrical linear motors include motor stators and motor movers that move linearly in the motor stators, but since the motor stators and motor movers of cylindrical linear motors are both in the shape of circular shafts, their motion in the linear direction is Its basic function, but the motor mover is not fixed in the circumferential direction of the motor stator. Under many working conditions, the motor mover cannot move in the circumferential direction of the motor stator, such as rotation, but the existing cylindrical linear motor There is no anti-rotation feature.

【Content of invention】

The technical problem to be solved by the present invention is to provide an anti-rotation device and method for preventing a cylindrical linear motor from being relatively static in the circumferential direction.

The technical solution adopted in the present invention is to provide an anti-rotation device for a cylindrical linear motor. The cylindrical linear motor includes: a cylindrical motor stator and a motor mover that moves linearly inside the motor. The anti-rotation device includes: a fixed block matched with the motor stator, and a fixed shaft matched with the fixed block, wherein, the motor mover is provided with a longitudinal slot, and the fixed block is provided with an opposite second A hole and a second hole, the fixed shaft passes through the slot after passing through the second hole, and then enters the first hole.

Another technical solution adopted by the present invention is to provide an anti-rotation method for a cylindrical linear motor, the method comprising the following steps:

The first step: provide a cylindrical linear motor, the linear motor includes: a cylindrical motor stator, and a motor mover that moves linearly in the motor stator, and the motor mover is provided with a longitudinal slot;

The second step: provide an anti-rotation device, the anti-rotation device includes: a fixed block matched with the motor stator, and a fixed shaft matched with the fixed block, the fixed block is provided with a first hole opposite with the second hole;

Step 3: After the fixed shaft passes through the second hole of the fixed block, passes through the slot, and then enters the first hole.

In the present invention, by adding a fixed block and a fixed shaft matched with the fixed block, a longitudinal slot is provided on the motor mover, and the fixed shaft passes through the slot to the fixed block, thereby preventing the motor mover from It rotates relative to the stator of the motor to meet the requirements of special industries for cylindrical linear motors to be relatively stationary in the circumferential direction.

【Description of drawings】

The present invention will be further described below with reference to the accompanying drawings and embodiments.

Fig. 1 is a partial schematic diagram of a cylindrical linear motor;

Fig. 2 is the schematic diagram of the fixed block of anti-rotation device;

Fig. 3 is a schematic diagram of the fixed shaft of the anti-rotation device.

【Detailed ways】

As shown in Figure 1, it is a partial view of the cylindrical linear motor. The cylindrical linear motor 1 includes: a cylindrical motor stator 10, and a cylindrical motor mover that moves linearly in the motor stator 10 20. The motor mover 20 is provided with a longitudinal slot 21, and a fixed end cover 30 is installed on the motor stator 10, and the fixed end cover 30 is fixed on the motor stator 10.

Referring to FIG. 2 and FIG. 3 at the same time, an anti-rotation device 2 is fixed on the cylindrical linear motor 1 , which includes: an anti-rotation fixed block 40 and a fixed shaft 50 matched with the anti-rotation fixed block 40 .

Wherein, the anti-rotation fixing block 40 is a hollow column, and the anti-rotation fixing block 40 is provided with a first hole 41 and a second hole 42 opposite to each other. The centers of the first hole 41 and the second hole 42 are on a straight line. And the diameter of the first hole 41 is smaller than the diameter of the second hole 42 .

As shown in FIG. 3 , the fixed shaft 50 can be an optical shaft, or a ball bearing or a tubular part can be put on the optical shaft. After the fixed shaft 50 penetrates through the second hole 42 of the anti-rotation fixed block 40, it passes through the slot 21 of the motor mover 20, and then enters the first hole 41, thereby preventing the motor mover 20 from contacting the motor stator in the circumferential direction. 10 for relative rotation.

Wherein, the fixed shaft 50 is provided with a first shaft segment 51 with an unstable diameter and a second shaft segment 52 connected to the first shaft segment 51, wherein the diameter of the first shaft segment 51 is smaller than the diameter of the first hole 41, and the second shaft segment 51 is connected to the first shaft segment 51. The diameter of the shaft section 52 is smaller than the diameter of the second bore 42 .

As shown in Fig. 1, wherein, the anti-rotation fixing block 40 is fixed on the fixed end cover 30, wherein, the anti-rotation fixing block 20 is provided with a fixing hole 43 corresponding to the end cover hole 31 of the fixed end cover 30, and the screw pin (not shown in the figure) pass through the fixing hole 43 and the end cover hole 31 in sequence, and fix the anti-rotation fixing block 20 on the fixed end cover 30 .

When working, firstly, the motor mover 20 is assembled in the motor stator 10, and then the anti-rotation fixed block 40 is fixed on the fixed end cover 30 of the motor stator 10; then, the first shaft section 51 of the fixed shaft 50 is fixed from the anti-rotation The second hole 42 of the block 40 penetrates through the slot 21 of the motor mover 20, the second shaft section 52 of the fixed shaft 50 and then enters the second hole 42 of the anti-rotation fixed block 40, and then blocks the anti-rotation with an object The second hole 42 of the fixing block 40 fixes the fixing shaft 50 .

The present invention also discloses an anti-rotation method for a cylindrical linear motor, the method comprising the following steps:

The first step: provide a cylindrical linear motor 1, the linear motor 1 includes: a cylindrical motor stator 10, and a motor mover 20 that moves linearly in the motor stator 10, the motor mover 20 is provided with a longitudinal long slot 21;

The second step: provide an anti-rotation device 2, the anti-rotation device 2 includes: a fixed block 40 matched with the motor stator 10, and a fixed shaft 50 matched with the fixed block 40, the fixed block 40 There are opposite first holes 41 and second holes 42;

Step 3: the fixing shaft 50 passes through the second hole 42 of the fixing block, passes through the slot 21 , and then enters the first hole 41 .

In the present invention, by adding a fixed block and a fixed shaft matched with the fixed block, a longitudinal slot is provided on the motor mover, and the fixed shaft passes through the slot to the fixed block, thereby preventing the motor mover from It rotates relative to the stator of the motor to meet the requirements of special industries for cylindrical linear motors to be relatively stationary in the circumferential direction.

Claims (5)

1. the anti-rotation device of a cylindrical linear, cylindrical linear comprises: motor stator cylindraceous, and in this motor stator the electric mover of moving linearly, it is characterized in that: described anti-rotation device is positioned on the linear electric motors, comprise: a fixed block that matches with described motor stator, and the fixed axis that cooperates with this fixed block, wherein, electric mover offers the fluting of a lengthwise, described fixed block is provided with the first relative hole and second hole, after described fixed axis penetrates from second hole, pass described fluting, enter first hole again.

2. the anti-rotation device of cylindrical linear as claimed in claim 1, it is characterized in that: the diameter in described first hole is less than the diameter in second hole, second shaft part that described fixed axis is provided with first shaft part and is connected with this first shaft part, the diameter of described first shaft part is different with the diameter of second shaft part, wherein, the diameter of first shaft part is less than the diameter in first hole, and the diameter of second shaft part is less than the diameter in second hole.

3. the anti-rotation device of cylindrical linear as claimed in claim 1, it is characterized in that: described cylindrical linear also is provided with and is fixed on fixedly end cap of one on the motor stator, and described fixed block is fixed on this stiff end and covers.

4. the anti-rotation method of a cylindrical linear is characterized in that, this method comprises the steps:

The first step: a cylindrical linear is provided, and these linear electric motors comprise: motor stator cylindraceous, and in this motor stator the electric mover of moving linearly, electric mover offers the fluting of a lengthwise;

Second step: an anti-rotation device is provided, and this anti-rotation device comprises: a fixed block that matches with described motor stator, and the fixed axis that cooperates with this fixed block, and described fixed block is provided with the first relative hole and second hole;

The 3rd step: described fixed axis passes described fluting after penetrating from second hole of fixed block, enters first hole again.

5. the anti-rotation method of cylindrical linear as claimed in claim 4, it is characterized in that: the diameter in described first hole is less than the diameter in second hole, second shaft part that described fixed axis is provided with first shaft part and is connected with this first shaft part, the diameter of described first shaft part is different with the diameter of second shaft part, wherein, the diameter of first shaft part is less than the diameter in first hole, and the diameter of second shaft part is less than the diameter in second hole.

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