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

The present invention discloses a production method of ceramsite lightweight concrete battens (wallboards) by using a non-autoclaved technology. The ceramsite concrete includes the following components: a cementitious material, fine aggregate, coarse aggregate, a water-reducing agent, a foaming agent and water, wherein the bulk density of the concrete is 1000-1400 kg / m3, the amount of the cementitious material is 300-400 kg / m3, the fine aggregate is a mixture of one or more of river sand, artificial sand and ceramic sand with a amount of 300-600 kg / m3, the coarse aggregate is artificial lightweight ceramsite with a amount of 500-700 L / m3, the water-binder ratio is 0.30-0.40, the usage amount of the foaming agent after mechanical foaming is 200-280 L / m3, and the mixing amount of the water-reducing agent (solid content) is 0.1-1.2% of the weight of the cementitious material. The invention also discloses the preparation method for the ceramsite lightweight concrete battens (wallboards). The method uses the non-autoclaved technology for production, and at the same time can promote the durability and other performances of the ceramsite lightweight concrete battens (wallboards) under the premise of realization of ceramsite lightweight concrete battens (wallboards) non-autoclaved production.

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.

The invention discloses a three-stage repairing process for a municipal railway vehicle. The process comprises the following steps: detecting a wheelset pantograph after a train is collected and enters a yard; performing thorough cleaning on the vehicle; performing preparation and repair on the train; unmarshalling the vehicle body, decomposing the unmarshalled vehicle body into a vehicle body, atraction and electric braking system, an air braking and air source system, a coupler and a bogie, and continuing to decompose the bogie, and overhauling the decomposed components of the vehicle body,the traction and electric braking system and the air source system, the coupler and the bogie; assembling the vehicle body, the traction and electric braking system, the air braking and air source system and the coupler; assembling the overhauled bogie components to form an overhauled bogie; dropping off the overhauled vehicle to form a single vehicle; performing a single-vehicle test on the single vehicle; carry out marshalling static commissioning; performing dynamic commissioning; static vehicle delivery, and on-line operation after parking and waiting duty. The overhaul process is suitable for the characteristics of the municipal railway vehicles, and the process is comprehensive and reasonable.

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 detachable movable like-ice and real-ice field ground structure which comprises an original soil ground. An ice field peripheral frame is arranged on the periphery of the upper surface of the original soil ground. An anti-seepage layer, a sand cushion layer, a thermal insulation plate, a waterproof layer and an auxiliary refrigeration layer are sequentially laid on the upper surface of the original soil ground from bottom to top. The periphery of the waterproof layer extends upwards and is fixed to the inner side outer wall of the ice field peripheral frame so that the auxiliary refrigeration layer can be wrapped in the waterproof layer. The auxiliary refrigeration layer comprises keels at intervals and refrigeration plates laid between every two adjacent keels. Adetachable stone material plate is laid on the upper surface of the auxiliary refrigeration layer. A like-ice field is formed when the stone material plate is laid. When the stone material plate is removed, water is injected into the ice field peripheral frame and condensed into ice under the effect of the refrigeration plates, and the real-ice field is formed. The field is used for multiple purposes, and the field can also have excellent anti-cracking, anti-seepage and anti-freeze-thawing durability.

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 relates to the technical field of mine ventilation equipment, in particular to an automatic openable air door for metallurgy and an underground mine ventilation system. The automatic openable air door for the metallurgy comprises a driving device, a first connecting-rod mechanism and a first door body; the first connecting-rod mechanism comprises a first connecting rod and a second connecting rod, one end of the first connecting rod is hinged to the first door body, the other end of the second connecting rod is hinged to one end of the first connecting rod, and a linkage mechanism is arranged between the other end of the first connecting rod and the driving device; the driving device is used for enabling the first connecting rod to rotate around a first set axis through the linkage mechanism so that the first connecting rod can pull the second connecting rod to move to make the first door body to be open and closed. The underground mine ventilation system includes the automatic openable air door for the metallurgy. By means of the automatic openable air door for the metallurgy and the underground mine ventilation system, the equipment investment of the air door can bereduced, the space required for installation is reduced, the air door is easy to disassemble, assemble and transport and convenient to maintain and install, the maintenance links are reduced, and thetransmission efficiency is improved.

The invention discloses a multi-port intelligent microgrid energy switch and a control method and system thereof. The energy switch comprises a photovoltaic chopper, at least two energy storage choppers, an output chopper, a host inverter, a slave inverter and a control chip. One end of the photovoltaic chopper is connected with one end of the host inverter, one end of one energy storage chopper is connected with one end of the slave inverter, and one end of the other energy storage chopper is connected with one end of the output chopper; the other end of the host inverter is connected with the other end of the slave inverter to generate three paths of alternating current ports and a first path of direct current port, and the other end of the output chopper generates a second path of direct current port; and the other ends of the photovoltaic choppers are externally connected with a photovoltaic power station, and the other ends of the two energy storage choppers are respectively connected with an external energy storage device. According to the invention, new energy grid connection is realized, the occupied area of the system is reduced, the investment cost is reduced, and the construction work of the energy internet is facilitated.

The invention relates to a forged and synthesized main shaft for a biomass particle granulating machine, comprising a shaft rod (1), a first shaft head (8) and a second shaft head (8'), wherein the first shaft head (8) and the second shaft head (8') are arranged on a roller atticbase (2) and extrude. The invention is characterized in that the shaft rod (1), the roller atticbase (2), the first shaft head (8) and the second shaft head (8') form an integrated forging piece; the roller atticbase (2) is circular; and the sections of the first shaft head (8) and the second shaft head (8') are fan-shaped. The two shaft heads of the forged and synthesized main shaft for the biomass particle granulating machine of the invention have large connection surfaces with the roller atticbase; the root part of each shaft head is in a circular arc shape and is subjected to an even force, and a large stress is not generated in local parts, thereby ensuring that the two shaft heads can simultaneously transmit moments all the time, so that the two rollers are subject to uniform forces; and since the rollers are subjected to more uniform forces, the damage of machine elements can be greatly reduced.

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 provides a corrosion-resistant renovation method for a lining titanium plate for a steel cylinder of a chimney. The corrosion-resistant renovation method comprises following operation steps: surface processing, keel production, installation of unit keels and welding of the titanium plate. The corrosion-resistant renovation method for the lining titanium plate for the steel cylinder of the chimney has following beneficial effects: fine corrosion-resistant performance is obtained; high heat resistance is achieved; great wear-resisting and anti-scouring performance is possessed; the period is shortened; service lifetime is prolonged; maintenance risks are reduced; cost is decreased; and power is increased.

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 relates to a method for assembling components of a combined boiling-free roasted-coffee making machine. The components of the combined boiling-free roasted-coffee making machine comprise a filtering cup, food filtering paper and a measuring spoon, wherein the filtering cup can be used together with a common domestic cup; the food filtering paper and the measuring spoon can be used together with the filtering cup; and the filtering cup, the food filtering paper and the measuring spoon as well as ground roasted-coffee powder are packaged in the same packaging box. When the consumer spends money to make coffee, the food filtering paper is put on the filtering cup, a proper amount of roasted-coffee powder is spooned and put on the food filtering paper, the filtering cup is rightly put on the common domestic cup whose rim matches with the rim of the filtering up, a proper amount of boiled water is poured into the roasted-coffee powder, and the boiled water is filtered and enters the common domestic cup, thus a cup of delicious coffee with the original flavor is made. The combined boiling-free roasted-coffee making machine has the advantages of low cost, convenient use and low technical difficulty, can ensure that the consumer drinks a cup of roasted-coffee with the original flavor and can be presented as a high-grade gift.

The invention discloses a ferris wheel main shaft support structure, which comprises mounting seats arranged on the left and right sides of the ferris wheel support and a main shaft arranged at the center of the circular turntable of the ferris wheel, and the two ends of the main shaft are rotatably mounted on the mounting seats Above, a magnetic levitation slewing support device is provided vertically between the main shaft and the mounting seat, and the magnetic levitation slewing support device includes a vertical annular outer ring and a vertical annular inner ring, and the vertical annular inner ring is placed In the vertical annular outer ring and separated from it, a magnetic levitation device is provided between the vertical annular inner ring and the vertical annular outer ring to form a magnetic levitation force between them, and the vertical annular inner ring and the vertical An axial positioning device for preventing the axial displacement of the vertical annular inner ring is also provided between the annular outer rings. The invention has the advantages of simple structure, convenient maintenance, permanent magnetic suspension and 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 discloses movable nitrogen and liquid filling equipment, and belongs to the field of aviation mechanical equipment. The movable nitrogen and liquid filling equipment comprises a transfer trolley, and a draw bar is arranged at one end of the transfer trolley. A liquid nitrogen tank, a first solution tank, a second solution tank, a mixed liquid tank, a pressure increasing valve and a nitrogen filling tank are arranged on the transfer trolley. The liquid nitrogen tank comprises an inner shell and an outer shell, a vacuum sandwich layer is arranged between the inner shell and the outer shell, and the first solution tank and the second solution tank are each provided with a drain valve and communicate with the mixed liquid tank. Hand valves are arranged at the positions, communicating with the mixed liquid tank, of the first solution tank and the second solution tank. The mixed liquid tank and the nitrogen filling tank are connected with the pressure increasing valve. The nitrogen filling tank is provided with a gas input port and a gas output port. By means of the scheme, the movable nitrogen and liquid filling equipment can widely meet the on-site requirements of large machines such as an airplane for liquid nitrogen, high-pressure nitrogen and cooling liquid, and inconvenience of daily maintenance caused by geographic positions of nitrogen stations is effectively avoided.

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 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 end of 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 relates to the technical field of agricultural machinery, in particular to a tensioning structure of chains for a garlic harvesting equipment conveyor. Multiple tensioning chain wheel assemblies are alternately arranged left and right, wherein a tensioning chain wheel of the left tensioning chain wheel assembly rightwards presses the right side of a left chain under the elastic force action of a tensioning chain wheel spring, so that the right side of a section of the left chain and the left side of a section of the right chain abut against each other. A tensioning chain wheel of the right tensioning chain wheel assembly leftwards presses the left side of the right chain under the elastic force effect of a tensioning chain wheel spring, and therefore the left side of the section of the right chain and the right side of the left chain abut against each other. The left chain or the right chain is provided with a horizontal sheet-shaped soft cushion, a bent-angle-shaped soft cushion or a vertical sheet-shaped soft cushion, garlic stems are prevented from being pinched off, and garlic heads are protected. According to the tensioning structure, the size specifications of the chains and the chain wheels can be reduced, the requirement for rigidity of a conveyor rack is also reduced, used mechanical materials can be reduced, the weight of equipment is reduced, the manufacturing cost is reduced, and the equipment is small in size, compact in structure and light in weight.

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 belongs to the field of building materials, and relates to a concrete column and a preparation method thereof. The column consists of a column reinforcing steel bar skeleton, concrete filling and wrapping the reinforcing steel bar skeleton and a waterproof coating layer, wherein the surface of the reinforcing steel bar skeleton is covered with a uniformly distributed anticorrosive coating. The column is prepared by four steps: preparation of the reinforcing steel bar skeleton, preparation of concrete, preparation of the concrete column and anticorrosive treatment of the concretecolumn surface. The performance of the obtained column meets the requirements of practical application, the purpose of greatly reducing the production cost is achieved based on guaranteeing and improvement of the performance of the concrete column and the handling efficiency of a template, the requirements of energy saving, emission reduction and environmental protection are put forward by the state, and the concrete column has good economic and social benefits.

The invention discloses a shot-slag separation device. The shot-slag separation device comprises a spiral conveyor, a screen drum, a slag feeding opening, a material guiding assembly, a separation bin, a separation plate, a shot opening and a slag opening. According to the shot-slag separation device, a shot curtain is constructed, separation is achieved through winnowing, in addition, screening is conducted through the screen drum at the preceding stage, and the number of separation links is small but the separation effect is relatively good based on the shot-slag separation device.

The invention discloses a vertical and axial suspension supporting structure. The vertical and axial suspension supporting structure comprises a stand column arranged vertically. Rotating discs capable of rotating horizontally are installed on the stand column. Installing bases are arranged on the outer wall of the stand column. Magnetic levitation rotation supporting devices arranged horizontally are arranged between the installing bases and the rotating discs. Each magnetic levitation rotation supporting device comprises a transverse annular lower ring fixedly connected with the corresponding installing base and a transverse annular upper ring fixedly connected with the corresponding rotating disc. Magnetic levitation devices are arranged between the transverse annular lower rings and the transverse annular upper rings and capable of forming magnetic levitation acting force between the transverse annular lower rings and the transverse annular upper rings. Radial positioning devices capable of preventing the transverse annular upper rings from shifting in the radial direction are further arranged between the transverse annular lower rings and the transverse annular upper rings. The radial positioning devices comprise transverse annular guide rails arranged on the transverse annular lower rings and / or the transverse annular upper rings. A plurality of limiting balls are arranged in the transverse annular guide rails. The vertical and axial suspension supporting structure is simple in structure, convenient to maintain, permanent in magnetic levitation and small in power consumption.

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.