58results about How to "Improve transition efficiency" patented technology

The invention provides a full-scale-movement linear circulating accelerated loading test system. The full-scale-movement linear circulating accelerated loading test system comprises a machine frame, a guide rail, two or more rolling wheel sets and two chain transmission pairs, wherein a front walking and guiding wheel and a back walking wheel are fixed to the lower part of the machine frame through a lifting mechanism; the guide rail is arranged on the machine frame; the upper loading surface of the guide rail is a linear section; the lower loading surface of the guide rail is shaped like a boat bottom; the two ends of the upper loading surface and the lower loading surface are connected in smooth transition through curved sections; the guide rail adopts a box-type structure and is internally filled with a shock-absorbing material; each rolling wheel set comprises two loading wheels and a rolling wheel; the rolling wheel is positioned between the two loading wheels and is coaxial with the loading wheels. The full-scale-movement linear circulating accelerated loading test system adopts a design scheme that the chain transmission pairs drive the rolling wheel sets, a chain and the rolling wheel sets are assembled together through chain pin shafts and connecting components, and the axes of wheel axles of the rolling wheel sets are vertical to and intersected with the longitudinal centerline of the chain; the full-scale-movement linear circulating accelerated loading test system is simple in structure, high in reliability and low in using cost and maintenance cost; the distance from the loading wheel to the rolling wheel is small, the stress condition is good, noise is low, and the efficiency is high.

A multiphoton absorption functional material including one of: fine particles of metal, and fine particles partly coated with the metal, the metal generating enhanced surface plasmon field on a metal surface, wherein the fine particles or the fine particles partly coated with the metal are dispersed in a multiphoton absorption material, and wherein the multiphoton absorption functional material is a bulk body.

The invention discloses an LED epitaxial growth method, which sequentially comprises the steps of processing a substrate, growing a low-temperature GaN buffer layer, growing a non-doped GaN layer, growing a Si-doped N-type GaN layer, growing a multi-quantum well layer, growing an AlGaN electronic barrier layer, growing a Mg-doped P-type GaN layer, and cooling. Wherein the growth of the multi-quantum well layer sequentially comprises the steps of In-doped pretreatment, InGaN well layer growth, Ga2O3 pre-growth, Ga2O3 layer growth, annealing treatment, GaN gradient layer growth and GaN barrier layer growth. According to the method, the problems of low quantum well growth quality and low quantum well radiation recombination efficiency in the existing LED epitaxial growth method are solved, so that the luminous efficiency of the LED is improved.

The invention discloses a folding arm support for a truss arm crawler crane. The folding arm support comprises an upper arm section and a lower arm section which are connected with each other through a middle section, wherein the middle section comprises an upper part and a lower part which are rotatably connected with each other; the upper arm section and the lower arm section are fixedly connected with the upper part and the lower part of the middle section respectively; connection structures between the upper arm section and a platform as well as the lower arm section and the platform at least comprise a first pulling plate arranged between the upper arm section and the platform and a second pulling plate arranged between the lower arm section and the platform; the lower ends of the first pulling plate and the second pulling plate are connected with a main variable-amplitude steel rope respectively; and the first pulling plate comprises an upper part internal pulling plate and a lower part internal pulling plate which are connected with each other. The folding arm support can successfully realize folding after working, so the gravity center is reduced, running of the whole arm support is realized, the arm support can be folded without being landed, running stability is enhanced, safety during transferring is guaranteed and transferring efficiency is improved.

The invention discloses a crane boom structure, and belongs to the technical field of cranes. The crane boom structure comprises a crane body and a telescopic main arm hinged to the rear side of the crane body. A derricking cylinder I is hinged between the front side surface of the first section of the lower portion of the telescopic main arm and the crane body. A superlift is further hinged to the front side surface of the first section of the lower portion of the telescopic main arm. A superlift derricking cylinder II is hinged between the superlift and the first section of the lower portionof the telescopic main arm. The upper end of the telescopic main arm is hinged to a tower arm. The front side of the tower arm is hinged to a tower arm supporting frame. A sway bar is connected between the tower arm supporting frame and the tower arm. A winch is installed on the superlift. The crane body is connected with a derricking steel wire rope. The other end of the derricking steel wire rope sequentially winds around the outer end of the superlift and the outer end of the tower arm supporting frame and then is connected to the winch. Through the foldable crane boom structure, the procedures of detaching and installing a derricking jig, lifting and lowering the derricking jig, detaching and installing a hook and penetrating the steel wire rope and using an auxiliary conveying vehicle are omitted in the transferring process, the transferring cost is greatly lowered, and the transferring efficiency is improved.

The invention relates to a quick-detachable pin shaft structure for connecting a guide holder with a pedestal of a large-size drilling machine. The quick-detachable pin shaft structure comprises a base, a screw shaft and a male seat connected with the guide holder. The male seat is located inside the base. The screw shaft transversely penetrates through an inner hole of the base and an inner hole of the male seat. A female connector shaft sleeve is installed in the inner hole of the base and located on the two sides of the male seat. A male connector shaft sleeve is installed in the inner hole of the male seat. Threads in the different directions are arranged in outer circle faces of the two ends of the screw shaft, and nut shaft sleeves with the outer sides being tightly attached to the female connector shaft sleeve and the male connector shaft sleeve are symmetrically connected to the outer circle faces of the two ends of the screw shaft through the threads. The outer side wall of each nut shaft sleeve is in a conical shape. The inner circle face of the female connector shaft sleeve and the inner circle face of the male connector shaft sleeve are provided with conical faces matched with the nut shaft sleeves. The quick-detachable pin shaft structure for connecting the guide holder with the pedestal of the large-size drilling machine is reasonable and ingenious in structure, capable of being locked through the inclined faces, convenient to dismantle and not prone to rusting.

The invention discloses an LED epitaxial wafer manufacturing method suitable for a small-spacing display screen. The method sequentially comprises the steps of: treating a substrate, growing a low-temperature GaN buffer layer, growing a non-doped GaN layer, growing a Si-doped N-type GaN layer, growing a multi-quantum well layer, growing an AlGaN electron blocking layer, growing a Mg-doped P-type GaN layer, and carrying out cooling. The step of growing the multi-quantum well layer sequentially comprises the steps of introducing a TMIn source, growing an MQWs1 and growing an MQWs2, the step of growing the MQWs1 comprises the steps of sequentially growing an InGaN well layer and an In<x>Al<y>Mg<1-x-y> layer, and the step of growing the MQWs2 comprises the steps of sequentially growing a GaO layer and a GaN barrier layer. The wavelength blue shift is reduced and the brightness of an LED is improved by adopting a novel LED epitaxial wafer manufacturing method, and the method is particularly suitable for manufacturing a small-spacing display screen.

The invention discloses a bridge erecting machine transition system. The system comprises a bridge erecting machine and a transportation device. The bridge erecting machine comprises a main guide beam, front supporting legs, a middle support, a rear support, rear supporting legs and a crown block, the front supporting legs, the rear support, the middle support and the rear supporting legs are sequentially installed on the main guide beam, and the crown block is arranged at the top of the main guide beam. The transportation device comprises a main beam transporting vehicle and an auxiliary beam transporting vehicle, the middle support is borne on the main beam transporting vehicle, and the front supporting legs are borne on the auxiliary beam transporting vehicle. The invention further discloses a bridge erecting machine transition method. According to the bridge erecting machine transition system and the bridge erecting machine transition method, the whole bridge erecting machine is slowly transported to the destination through the power of the main beam transporting vehicle and the auxiliary beam transporting vehicle, the bridge erecting machine does not need to be disassembled and then assembled, the bridge erecting machine assembling and disassembling risk can be reduced, and the transition efficiency is improved.

The present invention discloses an all-terrain walking structure based on a 10kV hot-line work platform, which comprises a traction structure and an auxiliary structure. The traction structure comprises a pressure bearing box, a pressure bearing plate, a crawler walking structure, two storage racks, a clamping rod, two limiting frames and two moving motors, and the crawler walking structure is fixedly arranged at the bottom of the outer wall of the pressure bearing box. The working ports are formed in the two sides of the outer wall of the pressure bearing box. In the invention, through the traction structure, stable assistance of the crawler walking structure can be realized by arranging the pressure bearing plate. In the subsequent special field process, due to a complicated working environment, auxiliary traction is quickly realized and the transition efficiency is improved in a mountainous region and a working environment with a relatively large slope. In the subsequent use process, when efficient steering is needed, the pressure bearing box is assisted to steer through the rotating plate, the telescopic air cylinder and the rotating motor, and the use convenience is improved.

The invention discloses a rotary drilling rig. The rotary drilling rig comprises a drill rod and masts, the drill rod is arranged on the mast, two connecting parts of two ends of the drill rod and themasts are separately close to the first ends and the second ends of the masts; the masts comprises the first mast and the second mast, the end of the first mast and the end of the second mast are rotatably connected, the first mast and the second mast rotate relatively to enable the first mast to be in straight line butt-joint with the second mast, and the height of the first ends and the secondends can be reduced to achieve the reduction of height of the drill rod. According to the rotary drilling rig, the drill rod is not required to be disassembled in the transition process, the workloadof the transition is reduced, the efficiency of the transition is improved, a plurality of transport vehicles are not required to transport the rotary drilling rig, and the transportation cost is reduced.

The embodiment of the invention provides a carrying device, a site transfer control method, electronic equipment and a storage medium, and relates to the technical field of building equipment. The device comprises a navigation positioning module and a chassis control mechanism, wherein the navigation positioning module is used for planning a walking path according to received map point cloud datato conduct navigating and positioning according to the walking path, the chassis control mechanism comprises a vehicle body frame, a steering control unit, a driving unit and a walking unit, and the steering control unit, the driving unit and the walking unit are arranged below the vehicle body frame; and the steering control unit is used for steering control according to the walking path, and thedriving unit is used for providing power for driving the walking unit and conducting site transfer according to the walking path. The device can be used for carrying a building robot and other devices and assisting the building robot to achieve site transfer, so that the problem that an existing building robot cannot achieve stie transfer automatically, and the problems of low automation degree,low transportation efficiency and additional labor cost caused by adopting artificial site transfer are solved.