Elevator device
A technology for elevators and monitoring devices, applied in transportation, packaging, elevators, etc., can solve problems such as broken ropes, inability to detect slow rope slippage, shortened rope life, etc.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment approach 1
[0018] figure 1 It is a block diagram showing the elevator apparatus according to Embodiment 1 of the present invention. In the drawing, a hoisting machine 1 is provided above the hoistway. The traction machine 1 has a motor 2 , a traction sheave 3 rotated by the motor 2 , and a traction machine brake 4 that brakes the rotation of the traction sheave 3 . In this example, the traction sheave 3 is directly connected to the rotating shaft of the electric motor 2 and rotates together with the rotor of the electric motor 2 . During normal operation, the traction machine brake 4 maintains their stopped state (stationary hold) when the rotation of the motor 2 and the traction sheave 3 stops.
[0019] The hoisting machine 1 is provided with a first speed detector 5 that generates a signal corresponding to the rotational speed of the hoisting machine 1 , that is, the rotational speed of the traction sheave 3 . For the first speed detector 5, for example, an encoder (a traction machi...
Embodiment approach 2
[0045] under, Figure 4 It is a block diagram showing main parts of an elevator apparatus according to Embodiment 2 of the present invention. In Embodiment 2, the emergency stop operation command device 19 calculates the slip distance of the suspension body 7 relative to the traction sheave 3 as a slip degree value. And, when the slip distance of the suspension body 7 exceeds the first distance threshold (first threshold), the emergency stop operation instruction device 19 stops the car 8 at a predetermined floor through the traction machine 1 . Also, when the slip distance of the suspension body 7 exceeds a second distance threshold (second threshold) greater than the first distance threshold, the emergency stop operation command device 19 outputs an actuation signal to the emergency stop drive unit 11a.
[0046] In addition, the emergency stop operation command device 19 has a slippage distance calculation unit 23 and a slippage determination unit 21 . The slippage distanc...
Embodiment approach 3
[0064] under, Figure 6 It is a block diagram showing main parts of an elevator apparatus according to Embodiment 3 of the present invention. In Embodiment 3, the emergency stop operation command device 19 calculates the slip distance and slip speed of the suspension body 7 relative to the traction sheave 3 as the slip degree value. And, when the slip distance of the suspension body 7 exceeds the distance threshold (first threshold), the emergency stop operation instruction device 19 stops the car 8 at a predetermined floor via the traction machine 1 . Moreover, when the slippage speed of the suspension body 7 exceeds a speed threshold value (2nd threshold value), the emergency stop operation command device 19 outputs an operation signal to the emergency stop drive part 11a.
[0065] Here, the speed threshold is set to correspond to a degree of slippage greater than the distance threshold. That is, the speed threshold is set to be larger than the numerical value obtained by ...
PUM
![No PUM](https://static-eureka.patsnap.com/ssr/23.2.0/_nuxt/noPUMSmall.5c5f49c7.png)
Abstract
Description
Claims
Application Information
![application no application](https://static-eureka.patsnap.com/ssr/23.2.0/_nuxt/application.06fe782c.png)
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap