5 results about "Towing" patented technology

The invention discloses a derailment monitoring system of endless-rope continuous towing vehicles and a monitoring method of the derailment monitoring system. An inductance type proximity switch of the derailment monitoring system is installed on a shuttle car; the shuttle car is provided with an emitter; the emitter is connected with the inductance type proximity switch; the emitter emits detection signals of the inductance type proximity switch; a router is installed at one side of a tunnel; the router receives the detection signals emitted by the emitter and transmits the detection signals to a receiver; the receiver is connected with a PLC processor through a bus; the PLC processor is connected with a display screen; the PLC is also connected with a relay; and the relay is connected with a control switch of a winch. With the monitoring method of the derailment monitoring system adopted, the position of the shuttle car can be positioned in real time, and the operation state of the shuttle car can be judged, and if a sensor predicts derailment, alarm signals can be generated, and the motor of the winch can be locked, and therefore, major accidents can be avoided, and efficient and safe operation of a coal mine auxiliary transportation system can be ensured; and derailment prediction information and shuttle car position information can be combined together, so that fault points can be found timely, and therefore, maintenance and repair can be performed.

The invention provides a net cage model test platform which is characterized in that two platform main beams stretch across rails and move through towing of a trailer. A platform framework is formed by the platform main beams via longitudinal connecting rods and transverse connecting rods through connection. The middle of the platform frame is provided with connecting supports which are used for installing a volume measuring instrument. The four corners and the front part of the platform framework are provided with clamping plates which are used for installing photographing rods and towing rods. One side of the platform framework is provided with a lateral photographing operation rod. Waterproof cameras are adopted to act as cameras which are provided with LED lighting lamps and fixed at the bottom part of the photographing operation rod. The top part of each towing rod is provided with a tension sensor bracket which is used for placing a tension sensor, and the bottom part of each towing rod is provided with slide wheels which act as transmission devices of tension steel ropes of a model test. Multi-angle model images are transmitted to a display end by the photographing devices arranged at the four corners and the sides of the platform. Tension data are measured by the tension sensors and transmitted to the computer display end and the data are read in real time and saved. The whole platform structure is connected with the tail part of the trailer via a connecting device arranged at the front end.

The invention discloses a method and a system for controlling a cable drum. The system comprises a first detection device, a second detection device, a receiver and a controller, wherein the first detection device is installed on a traveling support of a traveling mechanism of the cable drum and used for detecting the position of the traveling mechanism of the cable drum; the second detection device is mounted on an outer support of a guide frame of the cable drum and used for detecting the state of the guide frame of the cable drum; the receiver is connected with the first detection device and the second detection device and used for receiving position signals of the traveling mechanism of the first detection device and state signals of the guide frame of the second detection device; and the controller is connected with the receiver and used for determining whether the cable drum works normally according to position signals of the traveling mechanism and state signals of the guide frame, and controlling the cable drum to execute cable winding and laying operations under the condition that the cable drum is determined to work normally. According to the method and the system, accidents such as cable towing and cable loosening can be avoided, and loading and transportation efficiencies are improved.

The invention discloses a novel rail-mounted festoon pulley system and a mounting method thereof. The system comprises a fixed pulley and moving pulleys. The moving pulleys include the head pulley and the middle pulleys. The pulleys are connected through a traction chain, meanwhile, the moving pulleys are provided with ledge mounting holes, and ledges are mounted on the head pulley and one certain middle pulley of the moving pulleys. A towing rod is mounted on an electric conduction arm of a load trolley and serves as an input power source of a festoon system. The pulley ledges serve as power source receiving devices, maximization of the operating range of the load trolley is achieved by changing the position of a drive vehicle of the moving pulleys, the problems that the span of a crane is large, and the number of the pulleys is large, consequentially the pulleys are stacked, the operating range of the trolley is narrowed, and the dispatching blind area is large are solved, it can be guaranteed that the operating range of the trolley is maximized, the workshop using blind area is narrowed, the site utilization rate is increased by about 10%, and accordingly value is created for enterprises.