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Non-excitation action brake

A brake and action technology, applied in the direction of brake actuators, gear transmission mechanisms, mechanical equipment, etc., can solve the problem of uncertain external force in the air gap

Inactive Publication Date: 2018-03-23
OGURA CLUTCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in this prior art, there may be a problem that the value of the air gap is not constant with respect to the external force in the direction of narrowing the distance between the field core and the side plate.

Method used

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  • Non-excitation action brake
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  • Non-excitation action brake

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0023] Such as figure 1 As shown, the non-excitation action brake 1 of the first embodiment includes: an excitation core 10 with a built-in electromagnetic coil 12, a side plate 20 fixed to the excitation core 10 by screws 40, a The collar 30a between 20, the brake disk 60 arranged between the field core 10 and the side plate 20 and connected to the rotation shaft 70, and the brake disc 60 is movably arranged on the field core 10 and the brake disk along the axis of the rotation shaft 70. The armature 50 between the disks 60 and the compression coil spring 14 bias the armature 50 toward the side plate 20 .

[0024] The field core 10 is formed in an annular shape from a magnetic material such as carbon steel. An electromagnetic coil 12 is housed in an annular space formed in the field core 10 . On the outer diameter side of the electromagnetic coil 12 of the field core 10 , screw holes 11 are provided at respective positions divided into three equal portions in the circumfere...

no. 2 approach

[0049] Second, refer to Figure 6 and Figure 7 , the second embodiment of the present invention will be described focusing on differences from the first embodiment.

[0050] Figure 6 and Figure 7 The non-excitation actuation brake 1b shown differs only in the point of using the collar 30b which differs in shape from the collar 30a used in 1st Embodiment, Others are the same as 1st Embodiment.

[0051] The collar 30b of the present embodiment is a cylindrical member, and the inner wall surface is bored from a portion slightly in the middle of the contact end with the side plate 20 toward the middle portion to form a thin portion 31b. That is, the collar 30b has a recessed portion formed over the entire circumference on a part of the inner side wall surface of the side wall.

[0052] In the assembly process of the non-excitation operating brake of this embodiment, when the screw 40 is tightened, the collar 30b receives a mutual opposing force from the field core 10 and th...

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PUM

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Abstract

The invention provides a non-excitation action brake, wherein a collar (30a) for adjusting spacers is arranged between an excitation core (10) and a side plate (20), and they are assembled into one body with screws (40). A part (31a) of the side plate side of the collar (30a) can be plastically deformed by tightening the screw (40). Since the amount of plastic deformation of the collar (30a) can be adjusted by adjusting the tightening degree of the screw (40), the air gap G of the non-excitation action brake (1) can be effectively set without enlarging the device.

Description

technical field [0001] The present invention relates to non-excitation operating brakes. Background technique [0002] In a general non-excited operating brake, an armature is disposed between an exciter core forming the frame of the device and a side plate, and a brake disc connected to a rotating shaft is disposed between the armature and the side plate. . The armature is biased toward the side plate by a compression coil spring. If the electromagnetic coil built in the excitation core is energized, the above-mentioned armature is attracted to the above-mentioned excitation core by the magnetic attraction force generated by the electromagnetic coil, and the brake is released. On the other hand, when the excitation is cut off, the above-mentioned armature The brake is actuated by being pressed against the brake disc by the elastic force of the compression coil spring. In this way, the armature is a mechanical element that reciprocates along the axis of the above-mentione...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16D65/16F16D121/20
Inventor 松本益幸周东信行
Owner OGURA CLUTCH CO LTD