Abstract: An eccentric loading adjusting mechanism (5) and method for a parallel suspension platform. The adjusting mechanism (5) comprises a rotary platform (5-2) and a support guide frame (5-3) disposed on the rotary platform (5-2), wherein the base of the rotary platform (5-2) is fixedly connected to a suspension platform (4); a circular guide rail (5-8) is provided around the rotary platform (5-2); the support guide frame (5-3) is provided with two counterweight guide rails (5-15) and is connected to a rotary table of the rotary platform (5-2) by means of a rotary plate (5-17) on the support guide frame (5-3); and an electric drive pusher (5-6) drives a counterweight means (5-9) to move along the two counterweight guide rails (5-15), thereby eliminating eccentric loading.

Abstract: A chain fault diagnosis system and a chain fault diagnosis method for a scraper conveyor are provided. The diagnosis system includes a strain rosette attached on a top end surface of each sprocket tooth of the scraper conveyor. The strain rosette is connected to a signal gathering unit fixed on a scraper conveyor roller through a shielded conductor, the signal gathering unit sends a gathered signal to a wireless receiving device by means of wireless transmission, and the wireless receiving device transmits the gathered signal obtained thereby to an industrial control computer through a USB interface. The diagnosis method includes the following three steps: chain dislocation/skip fault judgment, chain breakage fault judgment and chain seizure fault judgment.

Abstract: A chain fault diagnosis system and a chain fault diagnosis method for a scraper conveyor are provided. The diagnosis system includes a strain rosette attached on a top end surface of each sprocket tooth of the scraper conveyor. The strain rosette is connected to a signal gathering unit fixed on a scraper conveyor roller through a shielded conductor, the signal gathering unit sends a gathered signal to a wireless receiving device by means of wireless transmission, and the wireless receiving device transmits the gathered signal obtained thereby to an industrial control computer through a USB interface. The diagnosis method includes the following three steps: chain dislocation/skip fault judgment, chain breakage fault judgment and chain seizure fault judgment.

Abstract: A traction rope adjustment apparatus includes a traction rope pressing device, and a traction rope pulley apparatus. The traction rope lifting apparatus prevents the traction rope sagging, the traction rope pressing apparatus prevents the traction rope drifting, and the traction rope pulley apparatus enables a car and the counterweight to smoothly pass through the traction rope pressing apparatus, thereby implementing forced guidance of the traction rope and the reliable and smooth running of the car and counterweight. The apparatus can meet the demands of variable gradients and can implement reliable running of an inclined running container in variable gradients, such that the traction rope adapts to the different gradients, solving the challenge of the development of an inclined running container that self-adapts to gradients.

Abstract: An intelligent charger with a diagnostic function and a charging method. The intelligent charger includes a control module, a diagnosis module, a charging module, a multi-path switch and a detection module. The control module is sequentially connected to the diagnosis module, the charging module and the multi-path switch; and the detection module is sequentially connected to an external connection terminal of a battery, the multi-path switch and the fault diagnosis module. The charging method includes a charging mode and a diagnosis mode; the diagnosis mode includes a two part function, namely fault diagnosis and lifetime detection; the fault diagnosis is detecting a fault problem which can occur in the battery and providing a prompt; and the lifetime detection is detecting the current capacity of a battery, and determining current battery life through the ratio of current capacity to rated capacity.

Abstract: Provided is a breakage detection system and method for a scraper conveyor, wherein a speed measurement device of the detection system and a sprocket assembly of the scraper conveyor are coaxially installed. Encoders are installed on speed measurement gears of the speed measurement device. An output end of the speed measurement device is connected to an input end of a programmable logic controller (PLC). An output end of the PLC is electrically connected to an automatic alarm device and a digital display module. A power supply module is used for supplying power to the whole system.

Abstract: A resistance-welding type storage rack layer plate having a first taper sleeve (1), a second taper sleeve (2), a third taper sleeve (3), a fourth taper sleeve (4), a first frame assembly (5), a second frame assembly (6), a third frame assembly (7) and a fourth frame assembly (8); a fitting and welding part (11) is respectively arranged on the two ends of a first metal connecting rod (9) and a second metal connecting rod (10) of each frame assembly, the fitting and welding part (11) is bended inwards, and the inner side surface of the fitting and welding part (11) fits with and is connected with the outer walls of the first taper sleeve (1), the second taper sleeve (2), the third taper sleeve (3) and the fourth taper sleeve (4). The fitting and welding part (11) also may be designed to be bended outwards.

Abstract: A hydraulic elevating platform having no guide rails and an elevating method. A hydraulic power pack drives three parallel hydraulic cylinders to work synchronously, thereby implementing the rising and falling of an elevating platform; when the elevating platform reaches a predetermined floor, an upper electric pushrod pushes a pedal assembly out, and then the pedal assembly drives a pedal to rise by means of a pedal elevating system until the pedal is flush with the surface of a loading table of the elevating platform; outward-swinging doors between the elevating platform and a floor open to form pedal guardrails; then sliding doors open and a man can step onto a stair via the pedal assembly. An eccentric loading adjusting means eliminates eccentric loading to achieve balance about the center of gravity, thereby eliminating the eccentric loading of the platform. The elevating platform is simple in structure, safe, reliable, and easy to maintain.

Abstract: A lap joint platform of a large-load lifting container, comprising a machine frame (18), a rocker arm platform (14), a rear rocker arm platform (17), a locking device and lifting devices. The rocker arm platform (14) is hinged with the top of the machine frame (18) through a shaft set (15) and is provided with mine car rails (24) and a rubber-tired vehicle support face (26). The rear rocker arm platform (17) is fixed with the top of the machine frame (18) through bolts. The locking device is arranged below the rocker arm platform (14) and comprises a locking lower sliding block cover plate (7), a locking lower sliding block (9), a locking upper sliding block (10), a locking oil cylinder front support (11), a locking lower sliding block guide rail (12), a locking inclined rail (13) and a locking oil cylinder (16).

Abstract: A lap joint platform of a large-load lifting container includes a machine frame, a rocker arm platform, a rear rocker arm platform, locking and loading devices. The lap joint platform is stable in loading and unloading processes.

Abstract: A fracture detection system and method for a dumbbell pin of a scraper conveyor. The system comprises a scraper conveyor, a wireless ranging apparatus (2), a wireless communication device, a support controller and a monitoring center. The wireless ranging apparatus (2) is mounted on a ramp plate ledge of a scraper conveyor chute (1), and has a laser range finder and a reflection target plate (24) for detecting a relative displacement between any two adjacent chutes. The wireless communication device realizes communication between the wireless ranging apparatus (2) and the support controller, and transmits the displacement of the laser range finder to the support controller in a wireless transmission manner. The support controller controls an action of the scraper conveyor chute (1). A monitoring center is electrically connected to the support controller, and can perform storage processing on relative displacement data of any adjacent chutes.

Abstract: The present invention relates to a horizontally movable vertical shaft rope guide and a regulating method thereof, which are suitable for guiding of hoisting containers in vertical shafts. The vertical shaft rope guide comprises a hoisting rope, and two hoisting containers suspended from the tail ends of the hoisting rope, wherein, cage guide ropes are led through guide cage lugs arranged on the two sides respectively, a tensioner arranged on the ground at the shaft top is connected to the upper end of each cage guide rope, and a connector arranged under a steel slot at the shaft bottom is connected to the lower end of each cage guide rope; a hydraulic cylinder is connected at the other side of each tensioner and the corresponding connector, and the hydraulic cylinder is connected to the tensioner or connector.

Abstract: A coal dropping impact energy buffer monitoring device and method for a coal mine belt conveying system. The device comprises a buffer belt roller group, a buffer bracket, buffer springs, impact energy collecting dampers, a signal converting and sending device, and an installation bottom board, the buffer belt roller group being fixed to the buffer bracket, the upper ends and the lower ends of the buffer springs and the impact energy collecting dampers being respectively connected to the buffer bracket and the installation bottom board, and the impact energy collecting dampers being connected to the signal converting and sending device fixed to the installation bottom board through guide lines.

Abstract: Disclosed is a method for estimating tension of a chain of a scraper conveyor, belonging to a method for estimating chain tension. The method comprises the following steps: embedding strain sensors in a plurality of scrapers of a scraper conveyor to measure the tension of weak coupling points between the scrapers and chains, converting acquired sensor signals into data signals through an A/D conversion unit, transmitting the data signals to a data control center using a wireless transmission module, further processing the tension data information of the weak coupling points through the data control center, establishing a chain tension distribution model, and determining an the estimated tension of the chain of the scraper conveyor. The method provided by the present invention is simple, efficient and practical, and the estimation of tension of the whole continuous moving chain is completed by the tension measurement at limited positions of the chain.

Abstract: A shock-absorbing and energy-collecting roller cage shoe including a base, a main energy-collecting module, two auxiliary energy-collecting modules, and a roller is provided. The base is provided with three containing spaces for containing the main energy-collecting module and the two auxiliary energy-collecting modules. In the three containing spaces, the main energy-collecting module and the two auxiliary energy-collecting modules are respectively connected fixedly to the base through wire rope shock absorbers, the main energy-collecting module and the two auxiliary energy-collecting modules are respectively pressed on the left side, the upper side and the lower side of the roller, and the right side of the roller is pressed on a cage guide. The energy-collecting modules collect vibrational energy generated by vibration in the operation process of a lifting container, and convert the vibrational energy into collectable piezoelectric energy.

Abstract: A device for monitoring tension equalization and displacement adjustment states of steel wire ropes of a multi-rope hoister includes a displacement sensor mounted on a steel wire rope tension equalization device, a signal acquisition transmitter designed to store and transmit signals of the displacement sensor, a barometric altimeter designed to detect the depth of a mine shaft where a hoisting container is located, and a wireless receiving and processing system arranged at the well mouth of the mine shaft.

Abstract: A coal dropping impact energy buffer monitoring device and method for a coal mine belt conveying system. The device comprises a buffer belt roller group, a buffer bracket, buffer springs, impact energy collecting dampers, a signal converting and sending device, and an installation bottom board, the buffer belt roller group being fixed to the buffer bracket, the upper ends and the lower ends of the buffer springs and the impact energy collecting dampers being respectively connected to the buffer bracket and the installation bottom board, and the impact energy collecting dampers being connected to the signal converting and sending device fixed to the installation bottom board through guide lines.

Abstract: An energy supply method and device for a monitoring wireless sensor node of a roller. A node energy supply device (2) is arranged on a roller web (1). The node energy supply device (2) comprises a generator (2-1), a disc rail (2-3), an input shaft (2-4), a swing link (2-5), a swing wheel (2-8) and an energy collection module (2-10). The generator (2-1) is driven to rotate using the rotation motion of the roller, the mechanical energy is converted into electric energy by the generator (2-1), and power is supplied to a monitoring wireless sensor node by the energy collection module (2-10). After rectification, filtering and voltage stabilization are conducted on the electric energy generated by cutting a magnetic induction line when the generator (2-1) operates, the energy collection module (2-10) uses the electric energy for charging an internal battery of the monitoring wireless sensor node.