Taiyuan University of Technology

Pingdingshan Tianan Coal Mining Co., Ltd

Taiyuan Boshitong Machinery, Electricity and Hydraulic Engineering Co., Ltd.

Guiyang Plateau Machinery Company Limited

Guiyang Plateau Mining Machinery Company Limited

Yandong Wang

Ziming Kou

Juan Wu

Zhensheng Wang

Deling Xie

Lipeng Zhu

Li'nan Zhang

Waiwen Zhang

Jiabao Xue

Aiming Cheng

Linan Zhang

Jian Lin

Zhigang Li

Huaxin Chen

Jun Yang

Bo Huang

Xinyu Shen

Xiaoniu Zhang

Xingzi Tu

Yinru Bai

Keliang Zhu

A rope replacement apparatus includes: a rope conveying mechanism, used for driving a first rope to move along a moving path of a second rope, so as to replace the second rope; a first detection part, used for detecting a first moving speed Vof the first rope output by the rope conveying mechanism; the first detection part being installed on the rope conveying mechanism; a second detection part, used for detecting a second moving speed Vof the second rope outside the rope conveying mechanism; the second detection part being installed on the moving path of the second rope; a control part, used for adjusting Vaccording to the difference between Vand V; the first detection part and the second detection part being both in communication connection with the control part. The rope replacement apparatus improves rope replacement efficiency and slipping can be reduced.

Rope replacement apparatus

The present invention discloses a multi-channel impact-resistant intelligent-constant-deceleration hydraulic braking system, and relates to the field of safety braking control for mine hoist systems. A technical point of the braking system is that the braking system includes a braking circuit formed by a constant-deceleration hydraulic system, a constant-deceleration electrical closed-loop control system, and a detection and feedback apparatus. The constant-deceleration hydraulic system is provided with N+1 independent complete oil return channels, where N is a positive integer greater than or equal to 3. The oil return channels are disposed in parallel to form parallel independent braking circuits, that is, are 'multi-channel' and do not have a “common output point”. The oil return channel includes a backup oil source, an electro-hydraulic signal conversion and amplification component, an operating mode switching apparatus, and an execution component that are sequentially connected. The oil return channels include one backup channel and N working channels. Functions such as constant-deceleration braking, impact and vibration limiting, rope slip prevention, derailing prevention, and overwinding prevention can be safely and reliably achieved when a mine hoist system normally stops, performs operation braking or performs safety braking, thereby greatly reducing an accident rate.

Multi-channel impact-resistant intelligent-constant-deceleration hydraulic braking system

A double-drum linkage winding type hoisting system includes a first hoisting drum and a second hoisting drum. The first hoisting drum and the second hoisting drum are engaged and linked through engagement structures on outer circumferences of the first hoisting drum and the second hoisting drum or are linked through a linkage intermediate member. A first hoisting rope is wound around the first hoisting drum. A second hoisting rope is wound around the second hoisting drum. The first hoisting rope and the second hoisting rope are not connected with each other.

Double-drum intermediate gear linkage winding type hoisting system

A mine explosion-isolating hoisting device with a built-in type permanent magnet motor includes a spindle fixed on the ground; a permanent magnet motor stator fixed on the spindle; a drum rotating relative to the spindle, the drum surrounding the spindle circumferentially; and a permanent magnet motor external rotor fixed by a spoke plate and rotating relative to the spindle; the drum is connected to the permanent magnet motor external rotor via an isolating disc; and a radial distance between an outer circumferential surface of the permanent magnet motor external rotor and an inner wall of the drum is greater than a preset value.

Mine explosion-isolating hoisting device with built-in type permanent magnet motor

Growing community of inventors

Taiyuan, China

Yandong Wang