Taiyuan University of Technology

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

Pingdingshan Tianan Coal Mining Co., Ltd

Guiyang Plateau Machinery Company Limited

Guiyang Plateau Mining Machinery Company Limited

Shanxi Dedicated Measurement Control Co., Ltd.

Shanxi Lingxuda Technology Co., Ltd

Juan Wu

Ziming Kou

Jing Zhang

Guijun Gao

Yandong Wang

Jiabao Xue

Jianwei Yang

Aiming Cheng

Waiwen Zhang

Deling Xie

Zhensheng Wang

Li'nan Zhang

Lipeng Zhu

Peng Zhang

Haiqing Wang

Ting Li

Jing Liu

Gongjun Cui

Yanfei Kou

Yongcun Guo

Liangji Zhao

Shaoni Jiao

Yujin Li

Sijia Meng

Linan Zhang

Jun Yang

Zhigang Li

Xin Li

Wei Zhang

Xinyu Shen

Qingshan Niu

Yanwei Peng

Buwen Zhang

Lijun Zhang

Xinjie Fan

Yongyong Dong

Qichao Ren

Feng Yan

Hulin Wang

Sheng Li

Yufei Xue

Xingzi Tu

Xiaoniu Zhang

Huaxin Chen

Bo Huang

Jian Lin

Yinru Bai

Keliang Zhu

Tengyu Li

Dingkui Tian

Baofu Kou

Shaokai Kou

Xin Xing

Shanrong Da

Jin Wei

Fen Yang

Shuyun Fan

Yaocheng Wei

Ning Guo

Xiaoli Zhao

Shuai Huang

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

An ultrasonic generation device and a concrete forming system are provided. The ultrasonic generation device includes a housing, a rotary vibration member, and a shaft body. The housing is provided with an air inlet. The rotary vibration member is disposed in the housing. The shaft body is relatively fixed to the housing, the rotary vibration member is sleeved on the shaft body, and the rotary vibration member and the shaft body are rotatable relative to each other. The shaft body is provided with a main air passage and a jet hole, a first end of the main air passage is in communication with the air inlet and a second end of the main air passage is in communication with the jet hole, the jet hole is provided in the shaft body at a position corresponding to the rotary vibration member.

Ultrasonic generation device and concrete forming system

An inspection robot system, including one or more detection devices, a rail, a traction device, one or more connecting devices, and a multi-axis manipulator. The detection devices are configured to at least obtain environmental image information. The rail is suspended in an air. The traction device includes a steel cable and a steel cable drive assembly. The steel cable drive assembly is connected to the steel cable and is configured to drive the steel cable to move along an axial direction of the steel cable. The connecting devices are slidably connected to the rail. The detection devices are respectively arranged on the connecting devices. The connecting devices are connected to the steel cable and are configured to move along the rail under a traction of the steel cable. At least one of the connecting devices is/are each provided with the multi-axis manipulator.

Inspection robot system

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 method and device for preventing impact vibration of a lift system include: acquiring a load weight in a lift container; obtaining preset basic parameters of a lift system; according to the load weight in the lift container and the basic parameters of the lift system, determining a fundamental wave vibration period of a lifting rope when the lift system starts; according to the fundamental wave vibration period and preset calculation parameters of the lift system, determining time-varying simulation parameters of an acceleration of the lift system during a lifting process; according to determined time-varying simulation parameters of the acceleration, lifting the lift container.

Method and device for preventing impact vibration of lift 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

An overwinding buffer device and method are employed for a vertical hoisting system including a derrick and a hoisting container. A hydraulic buffer device is disposed on the derrick, the hydraulic buffer device including at least one buffering hydraulic cylinder and buffering pressure rollers disposed corresponding to the buffering hydraulic cylinders; the buffering hydraulic cylinders are disposed on the derrick; piston rods of the buffering hydraulic cylinders are disposed horizontally and outer ends of the piston rods face towards the hoisting container; the buffering pressure rollers are horizontally fixed on an outer side wall of the hoisting container and arced surfaces of the buffering pressure rollers face towards the piston rods of the buffering hydraulic cylinders.

Overwinding buffer device and method for vertical hoisting system

This invention discloses a hoisting sheave shaft, a hoisting sheave and a lubricating device thereof, where the hoisting sheave shaft is provided with a first oil injection channel extending axially; an oil inlet of the first oil injection channel is arranged on an end surface of the hoisting sheave shaft; the hoisting sheave shaft is also radially provided with at least one second oil injection channel; the second oil injection channel intersects with the first oil injection channel; and an oil outlet of the second oil injection channel is arranged on an outer circular surface of the hoisting sheave shaft.

Hoisting sheave shaft, hoisting sheave and lubricating device thereof

A rubber belt retracting and deploying device for a belt conveyor includes a base, mounting frames, an upper caterpillar disk, a middle caterpillar disk and a lower caterpillar disk, wherein the lower caterpillar disk is fixedly connected between the symmetric mounting frames, and the middle caterpillar disk is movably connected between the symmetric mounting frames, and may longitudinally slide along the symmetric mounting, frames, such that the lower caterpillar disk and the middle caterpillar disk form a first clamping device; the upper caterpillar disk is movably connected between the symmetric mounting frames, and may longitudinally slide along the symmetric mounting frames, such that the upper caterpillar disk and the middle caterpillar disk form a second clamping device; each of the upper caterpillar disk, the middle caterpillar disk and the lower caterpillar disk is provided with a driving part.

Rubber belt retracting and deploying device for belt conveyor

The present disclosure provides a two-stage blade adjusting device for a counter-rotating axial flow fan. A blade adjusting operation shaft is adjusted to drive a pair of bevel gears to transfer power to a threaded pair coaxial with a transmission shaft, the threaded pair transforms rotary motion of the bevel gears into linear motion to push thrust discs in hubs, the blade installation angle of a first impeller is thus adjusted, and a spacer bush transfers the power to adjust the blade installation angle of a second impeller, so that synchronous adjustment of two-stage blade installation angles is realized. The device is simple and compact in structure and low in manufacturing and maintenance cost, and can be widely applied to large, medium and small counter-rotating axial flow fans.

Two-stage blade adjusting device for counter-rotating axial flow fan

The present invention relates to a wire rope suspension device, control method and multi-rope friction lift system, the device comprising: a first beam () and a second beam () which are passed by a wire rope () and fixed to the wire rope (); a suspension joint (), for connecting a lifting container (); a suspension cylinder (), having two ends respectively connected to the second beam () and the suspension joint (); a wedge joint (), being disposed in an accommodating chamber provided inside the second beam (); and a wire rope bias limiting mechanism, being disposed between the wedge joint () and the second beam (), for driving the wedge joint () to lock a wire rope section on one side of the wedge joint () itself and releasing movement restriction of a wire rope section on the other side of the wedge joint (), when the second beam () has a displacement with respect to the first beam () in a predetermined direction. The present invention allows a convenient rope adjustment operation.

Wire rope suspension device, control method thereof and multi-rope friction lifter

There is provided a ventilation apparatus with counter-rotating impellers driven by long shaft, wherein an electric motor and a gearbox are placed outside the air duct by using a long shaft with an internally disposed slim shaft extending therefrom, and are connected with the first stage impeller and second stage impeller inside the air duct by using the long shaft and slim shaft extending therefrom. In this ventilation apparatus with counter-rotating impellers, the components of the ventilation apparatus are placed inside and outside the air duct respectively by using the transmission shaft, which is convenient for maintenance and operation. By remotely arranging the impellers at an axial distance, the hub of the impellers will no longer be affected by an internally disposed electric motor, so as to reduce the ventilation resistance to ventilation. The impellers can be switched between the single impeller rotation and the counter rotation of two impellers.

Ventilation apparatus with counter-rotating impellers driven by long shaft

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Taiyuan, China

Juan Wu