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One-way speed limiter with automatic resetting pawl

An automatic reset and speed limiter technology, which is applied in the direction of elevators, transportation and packaging, etc., can solve the problem of no way to use the speed limiter, etc.

Inactive Publication Date: 2015-06-17
XJ SCHINDLER XUCHANG ELEVATOR +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a one-way speed limiter with automatic reset of the pawl to solve the problem that the speed limiter in the prior art cannot be used in machine-room-less elevators

Method used

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  • One-way speed limiter with automatic resetting pawl
  • One-way speed limiter with automatic resetting pawl

Examples

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Embodiment Construction

[0021] An embodiment of a one-way speed limiter that can automatically reset the pawl, in Figure 1~7 In the case, the base 1 is coaxially rotatably assembled with a rope wheel 2 and a ratchet wheel 3, and a wire rope is wound on the rope wheel 2. The diameter of the ratchet wheel 3 is smaller than the diameter of the rope wheel 2. A ratchet 4 is mounted on the wheel surface of the rope wheel 2 to rotate. A torsion spring is arranged between the ratchet 4 and the rope wheel 2. The torsion spring gives the ratchet 4 a torsion force so that the ratchet The rotation of the pawl 4 always has a tendency to engage with the slot of the ratchet wheel 3. When the pawl 4 is in a free state, the pawl 4 and the ratchet wheel 3 will be in a locked state, and a pawl is also rotated on the sheave 2 Positioning structure 6. The pawl positioning structure 6 has a pressing end which is pressed against the pawl 4 so that the pawl 4 is in a normal state where the ratchet wheel 3 is released. The p...

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PUM

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Abstract

The invention discloses a one-way speed limiter with an automatic resetting pawl. A rope wheel and a ratchet wheel are coaxially and rotationally assembled on a base of the one-way speed limiter, wherein a pawl is rotationally assembled on one side of the surface of the rope wheel; a pawl torsion spring for enabling a pawl steering ratchet wheel to be matched with a clamping groove of the ratchet wheel is arranged between the pawl and the rope wheel; a pawl positioning structure is also rotationally assembled on the surface of the rope wheel; a positioning torsion spring is arranged between the pawl positioning structure and the rope wheel; a jacking end of the pawl positioning structure is in elastic jacking fit with the pawl; two gravity hammers are also rotationally assembled on the other side of the surface of the rope wheel; a disk is coaxially and fixedly arranged on the surface, far away from the gravity hammers, of the ratchet wheel; thrust teeth of which the inclination directions are consistent with those of wheel teeth of the ratchet wheel are distributed on the outer edge of the disk; a resetting device is fixedly arranged on the pawl, and comprises a reset inclined plane which is in sliding thrust fit with the thrust teeth when the ratchet wheel reversely rotates after being locked by the pawl, so that the pawl resets. The pawl and the pawl positioning structure disclosed by the invention do not need to be manually reset, and can be applied to an elevator without a machine room.

Description

[0001] One-way speed limiter with pawl resetting automatically. Technical field [0002] The invention relates to a speed limiter for limiting the running speed of an elevator, in particular to a one-way speed limiter with a pawl that can automatically reset. Background technique [0003] The speed limiter is a key component of elevator safety. In the prior art, there is such a speed limiter, which includes a base on which a rope wheel and a ratchet wheel are coaxially rotated, and a wire rope is wound on the rope wheel. The diameter of the ratchet wheel is smaller than the diameter of the rope wheel. A ratchet is mounted on the wheel surface of the rope wheel to rotate. A torsion spring is arranged between the ratchet and the rope wheel. The torsion spring gives the ratchet torsion force so that the rotation of the ratchet always has When the pawl is in a free state, the pawl and the ratchet wheel will be in a tightly locked state. A pawl positioning structure is also provide...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66B5/02B66B5/16
CPCB66B5/02B66B5/16
Inventor 孙红亮范良勇易小红
Owner XJ SCHINDLER XUCHANG ELEVATOR