Trackless rubber wheel shuttle car for short wall mining

Large-span self-adaption traction-type self-moving belt reversed loader for mining

The invention belongs to the technical field of efficient fast post-tunneling matching equipment and relates to a large-span self-adaption traction-type self-moving belt reversed loader for mining. The large-span self-adaption traction-type self-moving belt reversed loader solves the problem that the existing reversed loader cannot satisfy efficient fast tunneling requirements. The large-span self-adaption traction-type self-moving belt reversed loader comprises a discharging part, an inclined section, a horizontal section, a loading part and a hopper, and the discharging part, the inclined section, the horizontal section, the loading part and the hopper are orderly connected. Parts of the inclined section, the horizontal section and the loading part contacting with the ground are respectively provided with multiple suspended supporting wheels. Each one of the suspended supporting wheels comprises a suspended supporting arm assembly, a supporting wheel connection assembly and a supporting ...

General type test board

The invention provides a general type test board. The general type test board at least comprises a board body which is provided with a first surface and a second surface. The first surface is provided with a first butting member which is butted with a test machine table. The second surface is provided with a second butting member which is butted with at least one type of chips to be tested of a first packaging type, and an expansion butting member which is used for being butted with a conversion board. Besides, the first butting member is electrically connected with the second butting member and the expansion butting member respectively. Advantages of the general type test board are that: performance of the chips of different packaging types can be tested without changing the board body so that test cost of the chips is effectively reduced and enterprise economic benefit is enhanced.

Flame-proof type water-cooling apparatus for electric power electron power element

The invention relates to a flame-proof water cooling device of a power electronic power element, which is mainly composed of a flame-proof electric control main case body, an upper case body, a case base, a power element mounting cooling plate, a flame-proof flange plate, a cooling protective plate, a water inlet valve, a water outlet valve and a square-hole water cooling pipe, wherein a transitional connection plate, the flame-proof flange plate, the power element mounting cooling plate and the cooling protective plate are arranged on the outer side of the electric control main case body; a power element plate is arranged on the front surface of the power element mounting cooling plate, and a cooling device for the square-hole water cooling pipe is arranged on the back surface to form water circulation cooling and heat dissipating outside the case body; the water cooling pipe adopts a square-hole bending shape, thereby increasing the cold scattering area, reducing the heat of the power ...

Control system and method of multi-arm automatic anchor cable drilling rig for coal mine

The invention belongs to the technical field of coal mine underground excavation roadway supporting equipment control, provides a control system and method of a multi-arm automatic anchor cable drilling rig for a coal mine, and solves the problem that the prior art lacks a control system and method for operation of an automatic anchor cable drilling carriage. The PLC transmits a received oil cylinder pressure signal, a motor rotating speed signal or a position signal of the feeding mechanism to the man-machine interaction interface unit, the man-machine interaction interface unit is used for displaying drilling rig state information and setting corresponding parameters, and the remote control transmitter is used for transmitting an equipment action instruction signal. The remote control receiver transmits an equipment action instruction signal to the PLC, and the PLC transmits the equipment action instruction signal to the digital quantity output module and the analog quantity output module ...

Flame-proof type water-cooling apparatus for electric power electron power element

The invention relates to a flame-proof water cooling device of a power electronic power element, which is mainly composed of a flame-proof electric control main case body, an upper case body, a case base, a power element mounting cooling plate, a flame-proof flange plate, a cooling protective plate, a water inlet valve, a water outlet valve and a square-hole water cooling pipe, wherein a transitional connection plate, the flame-proof flange plate, the power element mounting cooling plate and the cooling protective plate are arranged on the outer side of the electric control main case body; a power element plate is arranged on the front surface of the power element mounting cooling plate, and a cooling device for the square-hole water cooling pipe is arranged on the back surface to form water circulation cooling and heat dissipating outside the case body; the water cooling pipe adopts a square-hole bending shape, thereby increasing the cold scattering area, reducing the heat of the power ...

Complete equipment intelligent centralized control center in double-roadway tunneling closed area

The invention belongs to the technical field of coal mine underground tunneling equipment, provides an intelligent centralized control center for complete equipment in a double-roadway tunneling closed area, and solves the problem that remote control equipment for accurately and cooperatively controlling the speed and the direction of wheel type equipment is lacked in a coal mine. The electronic steering wheel transmits a signal to an equipment operation setting interface of the upper computer through a USB serial port, and the equipment operation setting interface transmits the signal to the main controller in a Modbus TCP communication mode; output resistance signals of the accelerator pedal and the brake pedal are transmitted to the GS8589 module, the GS8589 module converts the resistance signals into voltage signals and transmits the voltage signals to the EL3068 module, and the EL3068 module transmits the signals to the main controller in an EtherCAT communication mode; the main controller ...

Trackless rubber wheel shuttle car for short wall mining

The invention relates to a short wall mining trackless rubber tire shuttle car, which comprises a feeding part, a discharging part, a steering device, a scraper transport mechanism, a running mechanism, a steering mechanism, a cable taking in and off mechanism, a hydraulic transmission mechanism and an electric control mechanism. The invention adopts the electrical & mechanical integration explosion proof design and utilizes a connecting rod steering structure and a walking variable structure; the front and rear wheels adopt a wheelside speed reducing structure; a high voltage cable takes in and off automatically; the turning radius of the entire car is small and is 7.5m. The invention turns and walks freely, and solves the problem of difficult turning and walking of the equipments, and automatically finishes the scraper transport. The equipment is compact in structure, safe and reliable, is suitable for the narrow severe environment operation under the coal mine, high in production efficiency ...

Underground continuous tunnelling machine

The present invention relates to a coal mine underground continuous excavating machine. Its main mechanism includes the following several portions: main machine frame, rear machine frame, cutting mechanism, scooping plate mechanism, conveying mechanism, dust-removing mechanism, traveling mechanism, driving mechanism, hydraulic mechanism, electric control circuit and stable mechanism. Said invention also provides the connection mode of all the above-mentioned portions, and also provides the working principle of said excavating machine and its operation method.

Open coal mine continuous transportation walking elevating conveyor

The utility model belongs to a technical field of open -air coal mine transportation equipment specifically is an open coal mine continuous transportation walking elevating conveyor, has solved the current open -air problem that the elevating conveyor exists for the coal mining. Receive material portion, main frame, a main part of unloading is the welded bathtub construction, has upper and lower chain way to by a round pin articulated defeated coal chain way that constitutes whole equipment together, the scraper chain is arranged wherein, runs through whole chain way, and the cochain way is equipped with pressure chain piece, and transportation driving sprocket and tail guiding axle are arranged respectively to the scraper chain both ends, and couple with the scraper chain meshing, and scraper chain driving sprocket axle couples with the transportation drive division that the left and right sides was arranged, transportation driving part do not is equipped with transportation drive division ...