Unlock instant, AI-driven research and patent intelligence for your innovation.

Speed governor device of elevator

A technology of speed limiter and elevator, applied in the directions of transportation, packaging, elevator, etc., can solve the problems such as the inability to realize the miniaturization of the buffer, the inability to realize the reduction of the size of the top height, and the increase of the size of the top height.

Inactive Publication Date: 2007-05-09
MITSUBISHI ELECTRIC CORP
View PDF1 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, even when the car moves at the upper and lower parts of the hoistway where the speed of the car is usually low, the speed governor cannot be activated until the speed of the car reaches a very high speed.
Therefore, the size of the buffer for buffering the impact of the car cannot be reduced, and the depth of the hoistway pit where the buffer is installed cannot be reduced.
In addition, the roof height dimension for allowing overshooting or jumping of the car is also increased, and it is impossible to reduce the roof height dimension.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Speed governor device of elevator
  • Speed governor device of elevator
  • Speed governor device of elevator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0031] Fig. 1 is a block diagram showing an elevator apparatus according to Embodiment 1 of the present invention. In the drawing, a driving device 2 is provided on the upper part of the hoistway 1 . The drive device 2 has a drive sheave 2a. The main rope 3 is wound around the drive sheave 2a. A car 4 and a counterweight 5 are suspended in the hoistway 1 by main ropes 3 . In addition, a pair of car guide rails 6 for guiding the raising and lowering of the car 4 and a pair of counterweight guide rails (not shown) for guiding the raising and lowering of the counterweight 5 are provided in the hoistway 1 .

[0032] A pair of emergency stop devices 7 for forcibly stopping the movement of the car 4 are attached to the car 4 . In addition, a speed governor 8 is installed on the car 4, which is used to detect the overspeed of the car 4, and makes each emergency stop device 7 act; 8's neighborhood. Each emergency stop device 7 , speed governor 8 and return sheave 9 are arranged a...

Embodiment approach 2

[0086] Fig. 11 is a sectional view of main parts showing an elevator speed governor device according to Embodiment 2 of the present invention. In addition, FIG. 12 is a structural diagram showing a main part of the governor device when viewed in the radial direction of the governor sheave 15 in FIG. 11 . In the drawing, a slide pin 81 extending in the radial direction of the speed governor sheave 15 is fixed to the moving body 47 in a penetrating state. The slide pin 81 has: a first protrusion 81 a protruding from the inner peripheral surface of the moving body 47 ; and a second protrusion 81 b protruding from the outer peripheral surface of the moving body 47 .

[0087] A sheave shaft side groove portion 82 is provided on the outer peripheral surface of the sheave shaft 14 , and the first protrusion 81 a is slidably inserted into the sheave shaft side groove portion 82 . The sheave shaft side groove portion 82 is inclined with respect to the axial direction of the sheave sha...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A speed governor device of an elevator, wherein a pulley shaft is rotatably supported on a base fixed to a car. A governor pulley around which a governor rope vertically tensed in a hoistway is wrapped is installed on the base. A flyweight displaced from a normal position to a trip position by a centrifugal force caused by the rotation of the governor pulley is fitted to the governor pulley. An operation member displaceable in the axial direction of the pulley shaft is fitted to the pulley shaft. The normal position of the flyweight is adjusted by the displacement of the operation member relative to the pulley shaft. A cam member tilted to a car moving direction is installed in the hoistway. An operation force transmission member for displacing the operation member is installed in the car. The operation force transmission member comprises an engagement part engaged with the operation member in the axial direction of the pulley shaft and a driven part connected to the engagement part and guided along the cam member according to the movement of the car.

Description

technical field [0001] The present invention relates to a speed governor device of an elevator, which has a speed governor sheave that rotates with the movement of a car. Background technique [0002] In the existing speed governor for elevators, in order to detect that the speed of the car has reached a predetermined overspeed, sometimes the flying pendulum arranged on the speed governor sheave is rotated by means of the speed governor sheave. Rotation by centrifugal force. An emergency stop device is installed on the car, and the emergency stop device is used to prevent the car from falling. A speed limiter rope is wound around the speed limiter sheave, and the speed limiter rope is connected with an emergency stop device. Thus, the speed governor sheave rotates at a speed corresponding to the speed of the car. [0003] In this conventional governor for an elevator, when the rotational speed of the governor sheave reaches the first overspeed, the car stop switch is actu...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B66B5/04
CPCB66B5/044
Inventor 安藤英司
Owner MITSUBISHI ELECTRIC CORP