30results about How to "Reduce maintenance links" patented technology

The invention discloses a high-performance corrosion-resisting concrete pile and a preparation method thereof. The concrete comprises cementitious material, fine aggregate, coarse aggregate, water reducer and water, wherein the amount of the cementitious material is 350-550 kg / m<3>, the weight of the water reducer (content of solids) is 1.0-4.0 % of the weight of the cementitious material, the water cement ratio is 0.2-0.35, the sand ratio is 30-44 %, and the cementitious material is a mixture of cement and an active synergist or a mixture of cement, mineral admixtures and an active synergist. According to the invention, the performance of the prepared concrete pile can be consistent with the national standards only under the conditions of normal pressure steam curing, and the prepared concrete pile has better durability and strength than the prior art, thus the production cycle and the cost are greatly reduced, and the invention has huge economic benefit and social benefit.

A plastic flat filament winding machine comprises a panel, a three-phase asynchronous motor, a sliding shuttle, a bobbin, a supporting rod and a swing arm. The three-phase asynchronous motor drives the bobbin through the matching of a driving disk and a driven disk, the bobbin is arranged on the panel through a bearing, the supporting rod is installed at the upper end of the bobbin, the sliding shuttle is installed on the supporting rod, the three-phase asynchronous motor is connected with a reciprocating screw rod through a gear, the reciprocating screw rod is connected with the sliding shuttle, the swing arm is connected with a motor adjusting rod fixedly installed on the panel through a bearing, the motor adjusting rod is connected with the three-phase asynchronous motor through a connecting rod, the panel is provided with a guide rod, and a flat filament performs reciprocating sliding on the guide rod. The plastic flat filament winding machine is fewer in faults and convenient to maintain, maintenance steps are reduced, the cost is reduced, and tension is adjustable and can be kept stable; by utilizing the plastic flat filament winding machine to performing winding, the plastic flat filament winding machine not only enables the flat filament to be formed flatly and enables the rejection rate to be low, but also enables the new material flat filament to be wound more conveniently; and the plastic flat filament winding machine has the advantages of being simple in structure, convenient to maintain, low in processing cost and high in production efficiency.

The invention belongs to the field of construction materials and relates to a concrete pole and a preparation method thereof. The concrete pole comprises a pole steel reinforcement framework, concretefor filling and wrapping the steel reinforcement framework and a waterproof coating. The surface of the steel reinforcement framework is coated with corrosion-resistant layers in uniform distribution. The concrete pole is prepared by steps of steel reinforcement framework preparation, concrete preparation, concrete pole preparation and concrete pole surface corrosion-resistant treatment. Performances of the obtained concrete pole meet requirements of GB / T 4623-2014, production cost is sharply reduced on the basis that formwork transfer efficiency and performances of the concrete pole are guaranteed and improved, the national requirements on energy saving, emission reduction and environmental protection are met, and high economic benefits and social benefits are achieved.

The invention relates to the field of machinery, and provides a retractable main landing frame for small aircrafts. A joint at the upper end of a retraction actuating cylinder is articulated on a support of a body of an aircraft through a bolt, and the lower end of the retraction actuating cylinder is provided with a joint with a knuckle bearing; the joint with the knuckle bearing is installed on a shaft of a buffer strut; two ends of the upper part of the buffer strut are provided with concentric hollow shafts connected with the body of the aircraft through connection flange discs; a cylindrical inner cylinder at the lower end of the buffer strut is matched with a hole of a half wheel fork; a dual-fork ear at the upper end of an upper torsion-prevention arm is matched with a dual-ear sheet at the middle part of the buffer strut; a dual-fork ear at the lower end of a lower torsion-prevention arm is matched with a dual-ear sheet at the upper part of the half wheel fork; a single-fork ear at the lower end of the upper torsion-prevention arm is matched with a dual-fork ear at the upper end of the lower torsion-prevention arm; one end of an wheel shaft of the aircraft is installed in the hole in the lower end of the half wheel fork; braking aircraft wheels and tires are installed at the other end of the aircraft wheel shaft. The retractable main landing frame for the small aircrafts plays a very good buffering effect in the aircraft landing and sliding processes, and is suitable for the small aircrafts.

The invention relates to a double-layer ring die in interference fit connection for a biomass particle granulator, comprising an inner-layer ring die (1) and an outer-layer ring die (2). The outer-layer ring die (2) is in a circular sleeve structure and is made of non-quenching steel bars and provided with outer die holes (4) corresponding to inner die holes (3) in the inner-layer ring die (1) which is arranged in the outer-layer ring die (2), and the contact surfaces of the inner-layer ring die (1) and the outer-layer ring die (2) are in the interference fit connection. The invention can greatly enhance the fatigue strength of the ring die under the operation conditions of wood particle pressure and other heavy loads so as to avoid being discarded beforehand due to breaks.

The invention discloses a vertical axial suspension support structure, which comprises a vertical column, a turntable capable of horizontal rotation is installed on the column, and a mounting seat is provided on the outer wall of the column. There is a magnetic levitation slewing support device arranged horizontally between them. This device includes a transverse annular lower ring fixedly connected with the mounting base and a transverse annular upper ring fixedly connected with the turntable. The transverse annular lower ring and the transverse annular upper ring A magnetic levitation device is provided between them to form a magnetic levitation force between them, and a radial positioning device for preventing the radial displacement of the transverse annular upper ring is also provided between the transverse annular lower ring and the transverse annular upper ring. The radial positioning device includes a transverse annular guide track arranged on the transverse annular lower ring and / or the transverse annular upper ring, and a number of limit balls are arranged in the transverse annular guide track. The present invention has simple structure, convenient maintenance, permanent magnetic levitation, Low power consumption.

The invention discloses a sky wheel pod suspension self-adaptation system. The system comprises a rotary table hanging bracket mounted on a round sky wheel rotary table. A plurality of cylindrical pods which are transversely placed are evenly mounted on the rotary table hanging bracket in the circumferential direction. Each pod comprises a pod outer ring and a pod inner ring which is used as a pod cylinder framework. The pod outer rings are fixedly connected with the rotary table hanging bracket. The pod inner rings are arranged in the pod outer rings and separated from the pod outer rings, and a suspension device is arranged between each pod outer ring and the corresponding pod inner ring. A non-magnet-conductive intermediate ring is arranged on the outer wall of each pod inner ring in a sleeving mode. Each suspension device comprises an annular inner ring suspension track fixed to the corresponding intermediate ring and an annular outer ring suspension track fixed to the corresponding pod outer ring. After each inner ring suspension track is arranged in the corresponding outer ring suspension track in a non-contact mode, suspension acting force is formed between each inner ring suspension track and the corresponding outer ring suspension track. The sky wheel pod suspension self-adaptation system is simpler and more reasonable in structure, lower in production and using cost and convenient to maintain.

The invention discloses a hot runner system for processing and manufacturing a main runner and a branch runner from one block of a material and relates to the technical field of hot runners, in particular to the hot runner system for processing and manufacturing the main runner and the branch runner from one block of the material. A main nozzle is arranged at the center of the upper end of a hot runner panel, two splitting columns same in structure are arranged at the bottom of the hot runner panel, the hot runner panel and the two splitting columns are integrally connected, a hot injector isarranged at the bottom of each splitting column, heating pipes are arranged on the side walls of front and back ends of the hot runner panel and are placed along the edge of the side wall of the hot runner panel and the edges of the side walls of the splitting columns, the branch runner is arranged on the inner side of the hot runner panel, two ends of the branch runner are separately connected tothe hot injector along the inner sides of the splitting columns, the main runner is arranged in the middle position of the upper end of the branch runner, and the main runner communicates to the maininjector. By adopting the technical scheme, the hot runner system has the beneficial effects that the hot runner system is integrally processed and mounted, a glue leaking link is cancelled, and thework efficiency is high.

The invention provides a metal-reinforced corrosion-resistant cable composite coiled tubing. The metal-reinforced corrosion-resistant cable composite coiled tubing comprises a lining layer, a reinforcing layer, a sliding wear-resistant layer, an outer protective layer, an insulating interlayer and a transmission line. A metal-reinforced corrosion-resistant cable composite continuous oil pipe replaces a nonmetal cable composite continuous oil pipe, the tensile capacity and the external pressure resistance are improved on the basis of solving corrosion, scaling and wax precipitation, meanwhile, a cable is arranged in a pipe body to protect the cable, external oil gas erosion and abrasion damage during tripping operation are prevented, and the service life of the cable is prolonged. Downhole tools and ground equipment are communicated through data lines such as optical fibers, cables and signal cables which are arranged in the pipe body, so that collection of information and data at the bottom of a well is achieved, production operation conditions are observed and monitored in real time, and safe, efficient and stable production is achieved.

The invention discloses a multifunctional convertible movable ice rink which comprises a rink structure, a fence structure and a refrigeration device, wherein the fence structure is arranged on the periphery of the rink structure, is of a hollow structure, and comprises fence upright posts and baffle plate assemblies; the fence upright posts are arranged at intervals in the transverse direction and the longitudinal direction of the rink structure; a bottom cross beam of an upper part square framework is fixedly connected with the rink structure; lower part support legs are arranged at the bottoms of outer side upright posts of the upper part square framework; the lower part support legs are located on a foundation ground; the baffle plate assemblies are arranged between the adjacent fenceupright posts; the refrigeration device comprises a refrigeration front-mounted structure and a refrigeration rear-mounted structure; and the refrigeration front-mounted structure and the refrigeration rear-mounted structure are respectively arranged at the two ends of the longitudinal direction of the rink structure and are respectively arranged in hollow structures, arranged at the two ends of the longitudinal direction of the rink structure and are arranged in the transverse direction, of the fence structure. The multifunctional convertible movable ice rink has the advantages that the multifunctional convertible movable ice rink realizes the multifunction of one rink; meanwhile, the safety degree is improved; the energy is saved; and the efficiency is improved, and the like.

The invention provides a moveable intelligent voltage sensor cart device. The device is characterized in that an intelligent voltage sensor module with an upper layer tube and a lower layer tube arranged in I shape is fixedly arranged in front side of a frame by a screw for integrative arrangement, and is fixed on a movable cart; a divider resistor is arranged in the upper layer tube, a front endof the divider resistor is equipped with a conductive connection rod, a rear end of the divider resistor is equipped with a discharge tube, and a lower copper current conducting rod is arranged in the lower layer tube; the conductive connection rod is electrically connected with the lower current conducting rod by a centrally embedded conductive copper rod between the upper layer tube and the lower layer tube, the upper layer tube and the lower layer tube are molded for integration by vacuum epoxy resin molding, front ends of the upper layer tube and the lower layer tube are respectively equipped with an upper layer plum blossom contact and a lower layer plum blossom contact. The device has the advantages of simple structure, integrated effect of the movable voltage sensor device, convenient mounting, stable performance, high mechanical reliability, and convenient overhaul, maintenance and management.

The invention discloses an automatic air distribution mechanism applied to paper pulp molding forming. The automatic air distribution mechanism comprises a machine base and a main shaft used for driving a mold to rotate, the main shaft is provided with a main gear, the machine base is further provided with a cam meshed with the main gear, the cam is provided with a compression air distributor assembly, the compression air distributor assembly comprises an air valve control rod facing the cam, and the air valve control rod is sleeved with a spring. The novel adjustable mechanical automatic control linkage air distribution mechanism is stable in work and safe and reliable in structure, the failure rate of a whole control system is lowered, repair links of whole equipment are reduced, and thework stability of the whole compression air control system is improved, so that regarding high-speed rotation type paper pulp molding forming equipment, the two links of transferring a product and placing the product on a drying equipment delivering link plate are more accurate and more reliable; meanwhile, the installation of an electrical circuit and a pneumatic angle seat valve control air path pipeline is reduced, and the cost is saved and lowered.

The invention discloses a high-performance corrosion-resisting concrete pile and a preparation method thereof. The concrete comprises cementitious material, fine aggregate, coarse aggregate, water reducer and water, wherein the amount of the cementitious material is 350-550 kg / m<3>, the weight of the water reducer (content of solids) is 1.0-4.0 % of the weight of the cementitious material, the water cement ratio is 0.2-0.35, the sand ratio is 30-44 %, and the cementitious material is a mixture of cement and an active synergist or a mixture of cement, mineral admixtures and an active synergist. According to the invention, the performance of the prepared concrete pile can be consistent with the national standards only under the conditions of normal pressure steam curing, and the prepared concrete pile has better durability and strength than the prior art, thus the production cycle and the cost are greatly reduced, and the invention has huge economic benefit and social benefit.