Brake for elevator and a replacement method of damper of the brake for elevator

Patent metadata

Field	Value
Publication number	US-10288135-B2
Application number	US-201715437637-A
Country	US
Kind code	B2
Filing date	Feb 21, 2017
Priority date	Feb 22, 2016
Publication date	May 14, 2019
Grant date	May 14, 2019

Abstract

The present invention provides an elevator brake and a cushion replacement method of the elevator brake, and relates to the field of elevator braking technologies. The elevator brake of the present invention includes a first block and a second block that collide with each other during braking, and a cushion located between the first block and the second block, and further includes a cushion support detachably mounted on the first block or the second block, where the cushion is disposed on the cushion support. A cushion of the elevator brake in the present invention can be replaced without disassembling the whole elevator brake.

First claim

What is claimed is:

1. An elevator brake, comprising an electromagnetic coil, a first block and a second block that collide with each other when the electromagnetic coil is electrified, and a cushion located between the first block and the second block, and further comprising a cushion support detachably mounted on the first block, the cushion being disposed on the cushion support;
wherein the cushion support comprises a cushion receiving portion and a fixed mounting portion, the fixed mounting portion is perpendicularly bent with respect to the cushion receiving portion, the cushion receiving portion is disposed between the first block and the second block, and the fixed mounting portion is disposed in an exposed manner on an exposed surface of the first block;
wherein the cushion support is detachably mounted on the first block and the first block is a static plate, and wherein the static plate is provided with a groove, and the groove is used for receiving and fixing the cushion support;
wherein the groove comprises a first part of the groove disposed on a collision surface of the static plate and a second part of the groove disposed on an exposed surface of the static plate;
wherein the collision surface of the static plate faces the second block, and the exposed surface is perpendicular to the collision surface, the first part of the groove is used for receiving the cushion receiving portion of the cushion support, and the second part of the groove is used for receiving and fixing the fixed mounting portion of the cushion support.

2. The elevator brake according to claim 1 , wherein the cushion receiving portion is provided with one or more receiving holes for mounting the cushion.

3. The elevator brake according to claim 2 , wherein the cushion is an O ring or a cylinder, and an aperture of the receiving hole is set to be smaller than a diameter of the cushion such that the cushion is firmly mountable on the cushion support.

4. The elevator brake according to claim 2 , wherein the receiving hole is of a stepped hole structure penetrating through the fixed mounting portion, or a recessed hole structure not penetrating through the fixed mounting portion.

5. The elevator brake according to claim 1 , wherein the fixed mounting portion is provided with a threaded hole, and a screw penetrates through the threaded hole to detachably fasten the cushion support on the first block or the second block.

6. The elevator brake according to claim 1 , wherein the static plate is of a cuboid structure, and the groove is disposed at a central position in a length direction of the cuboid-structure static plate.

7. The elevator brake according to claim 1 , wherein the static plate is of a cuboid structure, and the groove is disposed at a central position in a width direction of the cuboid-structure static plate.

8. The elevator brake according to claim 1 , wherein the second block is a movable plate, the elevator brake is further provided with a guiding component, and the guiding component is used for limiting a movement direction of the movable plate with respect to the static plate.

9. The elevator brake according to claim 8 , wherein the elevator brake is provided with a brake lining and an intermediate block, the brake lining and the intermediate block are disposed on a same side as the movable plate and synchronously move with the movable plate.

10. The elevator brake according to claim 1 , wherein the elevator brake is further provided with a release component.

11. The elevator brake according to claim 1 , wherein two or more cushion supports are provided.

12. A cushion replacement method of the elevator brake according to claim 1 , comprising:
detaching the cushion support from the elevator brake without detaching at least the first block or second block of the elevator brake;
replacing the cushion mounted on the cushion support; and
mounting and fixing the cushion support back to the elevator brake.

13. The cushion replacement method according to claim 12 , wherein the detaching the cushion support is performed in the case that the elevator brake is not powered on, and in this case, the first block and the second block are disengaged.

14. An elevator system, using the elevator brake according to claim 1 .

Assignees

• Otis Elevator Co

Inventors

• Li Yatao
• Ren Yafei
• Gao Guochen

Classifications

• F16D65/095 Primary

  Pivots or supporting members therefor · CPC title

• F16D2121/22

  for releasing a normally applied brake · CPC title

• F16D2121/14

  Mechanical · CPC title

• B66D5/30

  electrical · CPC title

• F16D2250/0084

  Assembly or disassembly · CPC title