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Braking device travel automatic adjustment mechanism

A braking device and automatic adjustment technology, which can be used in slack regulators, transportation and packaging, elevators in buildings, etc., and can solve problems such as decreased braking force, weakened pressing force, and increased noise

Active Publication Date: 2020-06-12
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, corresponding to the part where the lining is worn, the stroke of the lining is increased, and the elongation of the spring pressing the lining is increased, so the pressing force is weakened, and the braking force is reduced.
In addition, due to the worn part of the lining, the gap between the disc or cylinder and the lining increases when the brake is released, so the stroke of the lining increases, and the noise at the time of clamping increases.

Method used

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  • Braking device travel automatic adjustment mechanism
  • Braking device travel automatic adjustment mechanism
  • Braking device travel automatic adjustment mechanism

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0024] use Figure 1 to Figure 5 An automatic stroke adjustment mechanism according to an embodiment of the present invention will be described. figure 1 is a diagram showing the overall structure of the brake, figure 2 is a diagram showing the displacement member 20, image 3 is a diagram showing the stroke adjustment member 30 . and, Figure 4 shown in figure 1 The state of the lining 3 in the brake before wear, Figure 5 The state of the lining 3 after wear is shown.

[0025] exist figure 1 In this case, the lining 3 is held by the holding member 10 and connected to the stroke adjustment member 30 . The stroke adjustment member 30 has a first external thread portion 40 , and the first external thread portion 40 is screwed to the first internal thread portion 41 of the armature 1 . The friction surface 5 of the lining 3 and the braking surface of the brake disc 2 can be adjusted by rotating the first external thread portion 40 of the stroke adjustment member 30 in t...

Embodiment approach 2

[0035] Figure 9 It is the automatic stroke adjustment mechanism of Embodiment 2 of this invention. The automatic stroke adjustment mechanism of the second embodiment includes a displacement member 23 , a first bevel gear 80 , a second bevel gear 81 meshing with the first bevel gear 80 , and a stroke adjustment member 32 .

[0036] An engaging portion 82 that engages with an engaged portion 83 of the first bevel gear 80 is provided at the front end of the displacement member 23 , and the second bevel gear 81 is fixed to the stroke adjustment member 32 . Furthermore, the stroke adjustment member 32 is provided with a second external thread portion 44 which is screwed into the second internal thread portion 45 provided on the holding member 12 .

[0037] When the lining 3 is worn, the displacement member 23 is displaced, and the engaging portion 82 provided at the tip of the displacement member 23 rotates the first bevel gear 80 through the engaged portion 83 provided on the fi...

Embodiment approach 3

[0040] Figure 10 It is the automatic stroke adjustment mechanism of Embodiment 3 of this invention. Such as Figure 10 As shown, the automatic stroke adjustment mechanism of Embodiment 3 has a displacement member 24 , a stroke adjustment member 33 and a gear 90 .

[0041] The gear 90 can only rotate in one direction, so that the stroke adjustment member 33 can only move in the direction of the brake disc 2 . The displacement member 24 has a first comb 91 that meshes with a gear 90 , and the stroke adjustment member 33 has a second comb 92 that meshes with a gear 90 . Furthermore, the first comb blade 91 and the second comb blade 92 are engaged with the gear 90 so as to face each other.

[0042]When the brake works and the friction surface 5 of the lining 3 is pressed by the braking surface 4 of the brake disc 2, the stroke adjustment member 33 has a force to move the stroke adjustment member 33 to the armature 1 side, but since the gear 90 does not rotate , and thus will ...

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Abstract

This automatic stroke adjustment mechanism in a brake apparatus is provided with: an armature (1) that moves in a direction closer to or more away from a braking surface (4); a stroke adjustment member (30), one side of which is supported by the armature (1) so as to be movable relative to the armature (1); a holding member (10) that is supported by the other side of the stroke adjustment member (30); a friction member (3) that is held by the holding member (10), and brought into contact with or separated from the braking surface (4) in accordance with the movement of the armature (1); and a displacement member (20) that is brought into contact with or separated from the braking surface (4) together with the friction member (3), and that is displaced to the armature (1) side relative to the friction member (3) depending on the amount of wear of the friction member (3). The displacement member (20) is displaced to the armature (1) side, thereby displacing the friction member (3) to the braking surface (4) side.

Description

technical field [0001] The invention relates to an automatic stroke adjustment mechanism of a braking device in an elevator. Background technique [0002] The traction machine that winds up the ropes of the elevator is equipped with a braking device. In an emergency, the lining of the braking device is brought into contact with the disk or cylinder of the rotating traction machine, and the friction force generated by each other is used to make the The elevator stops. When the brakes are used, the surface of the lining wears due to friction. In this way, the stroke of the lining increases corresponding to the worn part of the lining, and the elongation of the spring pressing the lining increases, so that the pressing force is weakened and the braking force is reduced. In addition, due to the worn part of the lining, the gap between the disc or cylinder and the lining increases when the brake is released, so the stroke of the lining increases, and the noise at the time of cl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16D65/54B66B11/08
CPCB66B11/08F16D65/54
Inventor 品川知洋
Owner MITSUBISHI ELECTRIC CORP
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