39results about How to "Guarantee the stability of transportation" patented technology

The invention discloses a through tied arch bridge and a construction method thereof. The through tied arch bridge is composed of two single-piece arch rib units. Each single-piece arch rib unit comprises an arch rib and a tie beam, wherein a hanger rod is arranged between the arch rib and the tie beam. The two arch ribs are connected as a whole through transverse supports. The two tie beams are connected as a whole through transverse beams. A bridge deck slab is erected on the transverse beams. Each arch rib is formed by connecting arch rib sections, each tie beam is formed by connecting tie beam sections, and the arch-shaped arch rib sections and the tie beam sections are arranged correspondingly. Each transverse support is formed by connecting two transverse support sections, wherein the two transverse support sections are fixedly connected on the arch ribs of the two single-piece arch rib units correspondingly. Each transverse beam is formed by connecting two transverse beam sections, wherein the two transverse beam sections are fixedly connected on the tie beams of the two single-piece arch rib units correspondingly. By connecting each group of transverse beam sections and each group of transverse support sections on bridge location construction site, the erection work of a bridge main body can be completed, so that the construction period is shortened effectively, capital investment is reduced, and the construction method is especially suitable for bridge construction of crossing important riverways or important lines.

The invention provides a sheet metal part elastic absorbing device with a latch. The sheet metal part elastic absorbing device with the latch comprises a fixing rack, a lifting seat and an absorbing head, wherein a supporting rod and guiding rods which are connected with the fixing rack are arranged on the lifting seat; the supporting rod is positioned in the center of the lifting seat and is connected with the fixing rack; the guiding rods are distributed on the periphery of the supporting rod and are matched with guide holes in the fixing rack; a damping spring is further arranged on each guiding rod in a matched manner; the absorbing head is arranged on the fixing rack and is axially parallel to the supporting rod; a limiting rod which is parallel to the absorbing head is further arranged on the fixing rack and is in threaded connection with the fixing rack; supporting ends which are perpendicular to end surfaces of the fixing rack are further arranged at two ends of the fixing rack; and a groove matched with a sheet metal part is formed in the bottom of each supporting end.

The invention relates to a flame-retardant conveyor belt with an aramid fabric skeleton used in coal mines, which includes a belt body made of neoprene; the belt body includes an upper covering rubber layer, an A transition rubber layer, a B transition rubber layer and a lower covering layer sequentially arranged from outside to inside. Layer rubber, the thickness of the upper cover layer rubber is 4-12mm, and the thickness of the lower cover layer rubber is 3-6mm; there is a skeleton layer between the A transition rubber layer and the B transition rubber layer; the skeleton layer is composed of a layer of aramid canvas and It is composed of a dipping layer wrapped on the outer surface of aramid canvas, and the thickness of the skeleton layer is 2.5-6mm; the raw material components of the upper cover rubber and the lower cover rubber contain flame retardants; the flame retardants are chlorinated paraffin, One or more of antimony oxide, zinc borate, and ammonium polyphosphate. The flame-retardant conveyor belt with aramid fiber fabric skeleton for coal mines of the present invention can transport materials in high-strength, long-distance, and large-capacity occasions, is suitable for use in the harsh environment of coal mine underground operations, and has high heat resistance and fire resistance. .

The invention provides a mechanical conveying device convenient and fast to use, and relates to the field of machinery. The mechanical conveying device comprises a driving box, the top end of the driving box is provided with a conveying belt, the outer side of the conveying belt is provided with a plurality of sets of friction grooves, the top end of the driving box is fixedly provided with a center rod, and the center rod is located on the inner side of the conveying belt. A plurality of sets of rotating shafts are installed on the outer side of the center rod, linkage rods are installed on the outer sides of the rotating shafts and are movably connected with the center rod through the rotating shafts, reset rods are installed on the outer sides of the linkage rods, one ends of the reset rods are fixedly connected with the outer side of the center rod, and driving shafts are installed on the inner sides of the two ends of the conveying belt. The inner side of each linkage rod is hollowed, a swing rod is installed on the inner side of each linkage rod, and a swing block is installed at one end of each swing rod. By adoption of the mechanical conveying device, the problem that in the moving process of the conveying belt, goods can fall off due to the fact that the goods are gradually deviated due to placement at will or vibration of the conveying belt is effectively solved.

The invention provides a wagon body for a railway wagon. The wagon body comprises a middle underframe, two opposite sides of the middle underframe are respectively provided with a side wall, and the two side walls and the middle underframe jointly form an accommodating cavity for accommodating a road wagon, wherein two ends of each side wall are respectively used for being connected with a bogie of the railway wagon. Compared with wagon bodies in the prior art, the wagon body for the railway wagon of the invention has the following advantages: on one hand, the wagon body provides the accommodating cavity for the road wagon, so that the road wagon loaded with goods can be stably loaded on the railway wagon; and on the other hand, in the cargo transportation process of the wagon body, the process of unloading cargoes on the railway wagon to the road wagon can be omitted, so that the transportation time is shortened, and the transportation efficiency is improved.

The invention relates to an intelligent control system for open-pit mining, which includes an ore pre-selection module, a crushing module, a transmission module, a reloading module, and a discharge field; Equipment, select the most suitable mining equipment, reduce costs and improve mining efficiency. Correspondingly, in the crushing stage, different crusher strengths are adopted according to different ore types and needs, and then the crushed ore fragments are loaded into different compartments , after measuring its weight density, it is released to the conveyor belt, and the crushed ore is classified to facilitate subsequent processing. The conveying speed of the conveyor belt is adjusted in real time according to its load, and the load is calculated in real time to ensure the conveying efficiency and stability of the conveyor belt. The module puts the ore fragments on the conveyor belt into different discharge yards according to different densities and diameters to meet different needs, reduce labor costs and improve efficiency.

The invention discloses a multi-functional emergency rescue and disaster relief vehicle, which comprises a carrier vehicle chassis and a driver's cab and a carriage on the chassis. A backpack hydraulic oil tank and a fire extinguisher are arranged in the gap between the driver's cab and the carriage. Chassis power take-off hydraulic power station connected with the hydraulic oil tank; there are power generation compartment, equipment compartment and tool compartment in the compartment, vehicle-mounted generator set and hidden vehicle-mounted lifting and rotating lighting device are installed in the power generation compartment, and vehicle-mounted Cantilever crane, the other side is equipped with a hydraulic saw and a hydraulic pick through the bracket, and a cable winch, an integrated vehicle cleaning machine and a telescopic ladder are hoisted at the bottom of the compartment. In a limited space, through a reasonable and compact layout design, it integrates many functions. The generator set is installed at the front of the carriage, which is the center of gravity of the vehicle's load, thus effectively ensuring the transportation stability of the vehicle. , more effectively guarantee the driving safety of the car.

The invention provides a material conveying system and a material conveying method. The material conveying system comprises a material conveying robot and a vertical conveyer. The material conveying robot is provided with a telescopic platform assembly. A second sliding platform used for holding materials can completely extend out of a robot body. Two supporting seats are arranged on a lifting platform of the vertical conveyer. An insertion station is arranged between the two supporting seats. The material conveying method comprises the steps that the material conveying robot obtains materialcarriers, the second sliding platform and the material carriers extend out of the body and extend into the first lifting space from an overall opening, and the second sliding platform is located in the insertion station; the lifting platform rises, the supporting seats bear the material carrier, and the material carrier leaves the second sliding platform. The material conveying robot can achieve carrier handover without entering the vertical conveyer; the lifting platform achieves conveyance of the multiple material carriers, the multiple material carriers enter the material conveying robot orare recycled at the same time, so that the work frequency of the material conveying robot is lowered, and the conveyance capacity is increased; and conveyance is stable, the applicability is high, and the work efficiency is high.