78 results about "Composite cylinder" patented technology

The invention relates to a local washout test method for a single-column composite barrel type foundation under an actual wave current condition. The method comprises the following steps: acquiring basic data of a target wind power plant area; determining a scale, and constructing a reduced scale physical model water tank according to similar conditions; parameters of the first two-way pump, the second two-way pump and the wave maker are determined through adjustment and measurement; excavating a test scour area, installing a reduced-scale single-column composite cylindrical foundation, and laying model sand; and carrying out a scouring test until scouring is balanced, recording the scouring depth and the scouring range, and converting the scouring depth and the scouring range into prototype quantities. According to the method, the superposition effect of actual rotating tidal current and waves in a sea area can be well simulated, the scouring form conforming to the sea area site is simulated, and therefore the local scouring condition of the single-column composite barrel type foundation under the actual wave current condition can be accurately judged.

The invention is suitable for the technical field of tapered-straight composite shell ring processing, and provides a processing method of an integrated tapered-straight composite shell ring, which comprises the following steps: S1, cutting and blanking a steel plate according to the size of the tapered-straight composite shell ring, and cutting out a plate material; s2, preparation work before machining is conducted on the plate material, wherein the preparation work at least comprises groove machining, two-side edge pre-bending and generatrix, symmetric center line and step line drawing; s3, according to the drawn step line, pressing forming is conducted on the plate through a top pressing type plate bending machine, and a formed workpiece is of a composite structure of a semi-cylindrical pipe section and a semi-conical pipe section; s4, the formed workpiece is shaped; and S5, the two shaped workpieces are folded and welded, and the conical and straight composite shell ring is formed. Therefore, not only is the specific process problem of the integrated cone-straight composite shell ring in the bending forming process solved, but also the core advantages of no annular weld joint, high continuity and high performance pursued by the integrated design are achieved by guaranteeing the manufacturing precision and consistency of the integrated cone-straight composite shell ring.

The invention discloses a crankshaft all-fiber bending and upsetting forming device and an upsetting method using the crankshaft all-fiber bending and upsetting forming device. The crankshaft all-fiber bending and upsetting forming device comprises a loading main machine structure and an upsetting structure. The loading main machine structure comprises a main machine top base, a main machine base, a movable cross beam and a movable workbench. The main machine base and the main machine top base form a vertically-layered loading structure through the machine body stand columns. The loading structure is used for mounting a composite cylinder body mechanism for upsetting driving and locking; a piston rod at the front end of the upsetting cylinder is connected with the movable cross beam to form a die assembly transmission structure; and a double-toggle-rod force amplifying mechanism is mounted in the movable cross beam. Carrying out upsetting operation loading treatment; carrying out positioning die assembly and die locking treatment on the forge piece; and the upsetting treatment is assisted by the double-toggle-rod force amplifying mechanism. According to the method, the application range is wide, high-precision one-time heating rapid upsetting forming can be conducted through the light bar blank, continuity and completeness of a crankshaft metal fiber flow line are reserved, the forge piece machining allowance is small, the metal utilization rate and the machining efficiency are improved, the crankshaft internal structure density is high, and the method can be used for upsetting blanks of shafts, flanges and other parts.

The invention discloses a large-size rotary cylinder and a preparation method thereof, the large-size rotary cylinder comprises an outer wall and an inner wall of a wing-shaped section cylindrical structure, two groups of corresponding ends of the outer wall and the inner wall are connected, the outer wall is provided with a fixed base joint, and the inner wall is provided with a flow guide support arm joint; a part of the area, corresponding to the joint of the fixed base, on the outer wall is a solid composite material wall, and part or all of the rest areas are of a sandwich structure formed by wrapping a foam core material with a composite material skin; a part of the inner wall corresponding to the joint of the flow guide support arms is a solid composite material wall, and part or all of the rest areas are of a sandwich structure formed by wrapping a foam core material with a composite material skin. The device is applied to the technical field of composite material barrel forming, so that the barrel has high structural strength and axial deformation resistance, other auxiliary supporting devices are not needed except that the bottom of the barrel needs to be supported by a fixed base, the occupied space is greatly saved, and the assembly difficulty is reduced.

The invention relates to a novel isostatic pressing interference fit joint in which the assembly chamber has two diameters, one is a part S1 and the other is a narrower part S2, the part S2 forms part of a cylinder, and the cylinder is composed of a plurality of cylinders with interference fit joints. As the assembly chamber must be loaded with a cylinder which is adapted to the S1 part and not adapted to the narrower S2 part, the cylinder has two diameters. Then, once the assembly chamber is closed, the pressure is increased, the diameter of the assembly chamber is increased, especially the diameter of the S2 part is increased, and when the pressure is released, the composite chamber enters and is assembled with the S2 part. In order to facilitate assembly, the assembly chamber is preferably operated vertically, the S1 part is located at the top, and when the pressure is increased, the composite air cylinder falls into the S2 part under the action of self weight. It is then detached, as a result of which the composite cylinder is in interference fit with the other cylinder, the other S2 part must be included in the assembly chamber for reuse.

The application provides an electric loader distributed hydraulic system using an electro-hydraulic composite cylinder. Mainly includes steering drive subsystem, first pumping device, bucket distributed valve group, bucket electro-hydraulic composite cylinder, second sending device, boom distributed valve group, boom electro-hydraulic composite cylinder, whole vehicle controller, control handle, steering wheel, proportional electromagnetic on-off valve and hydraulic accumulator. By decoupling the steering, boom and bucket devices of the traditional loader, independent and efficient driving of each part is realized. The bypass throttling loss is effectively reduced, the overall machine efficiency is greatly improved, each actuator is not disturbed, the system control difficulty is reduced, the response time is shortened, and the control performance is enhanced. The advantages of electric drive and hydraulic drive are effectively combined, and the performance requirements of the overall vehicle economy and power are effectively improved.

This invention discloses a nearshore water sampler and its usage method, relating to the technical field of water environment monitoring and marine survey equipment. The sampler comprises a composite cylinder consisting of a transparent plexiglass body and corrosion-resistant metal end caps. The metal end caps achieve a reliable seal with the cylinder flange via a widened buffer sealing platform. The upper end cap uses a damping hinge and a miniature flange to achieve stable suspension after sampling, facilitating direct insertion of the water quality probe for detection. The lower end cap has an opening at a specific angle and a flow guide groove, forming an efficient water flow channel with the upper opening to ensure thorough water exchange. This invention integrates automatic trigger sampling, in-situ detection, and convenient liquid collection functions, and features a dedicated handle with an anti-slip structure, a protective vertical bar for the cylinder body, and buffer support protrusions, improving operational convenience, stability, and overall durability of the equipment in field environments.

Disclosed in the present invention are a lightweight, high-strength and multipurpose container made of laminated bamboo lumber, and a method for manufacturing same. The container consists of corner posts made of laminated bamboo lumber, side posts, longitudinal side beams, transverse short beams made of laminated bamboo lumber or glass fiber and steel, longitudinal middle beams made of laminated bamboo lumber or glass fiber and steel, corner member-glass fiber-steel plate-steel sleeve-bolt integrated connectors, diagonal braces made of laminated bamboo lumber, glass fiber-steel composite cylinders for a forklift, glass fiber-steel sleeve bolted connectors, glass fiber-steel bolted connectors, oblique T-shaped glass fiber-steel filler plate bolted connectors, portal-shaped steel plate integrated welding connectors, doors, a K-shaped structural system and enclosure panels. The container of the present invention has the advantages of being lightweight, having high strength, safe and reliable structure, corrosion resistance, impact resistance, fatigue resistance, freezing resistance, etc. Moreover, the present invention reduces the use of mineral materials such as steel and aluminum alloy, and is low-carbon and environmentally-friendly.

The invention discloses an auxiliary spraying tool for an inner cavity of a composite cylinder section, and belongs to the technical field of surface machining. The device is suitable for spraying the surface of the inner cavity of the composite material cylinder section, high-precision and high-stability rapid spraying of the inner surface of the large-size long and narrow cavity cylinder section of the composite material is achieved, the sprayed inner cavity surface coating is continuous and uniform and has no obvious surface defects such as particles, sagging, flowing, pinholes and bubbles, the spraying speed of the inner cavity of the cylinder section is high, and operation is easy.

The invention relates to the field of solid carbon dioxide preparation and forming processing, and discloses a device for efficiently preparing high-density dry ice.The device comprises a base, a device body is arranged at the top of the base, a feeding assembly is arranged in the device body, and a temperature control assembly is arranged in the device body; a blanking assembly is arranged outside the device body, the blanking assembly is combined with the pressing assembly to make the granular dry ice into dry ice blocks, an air injection assembly is arranged at the top of the base and used for cleaning the interior of the pressing assembly, and a radiator is arranged at the top of the device body. And through the arrangement of a heat blocking composite cylinder body structure with a heat exchange runner, thermal isolation of a low-temperature snow making environment in the pressing cavity and a wall surface micro-temperature regulation and control environment is achieved. According to the structural design, input of heat is concentrated on an inner wall contact interface, invalid heat transfer loss is reduced, and the low-temperature stability of the overall structure of the device body is maintained while the gas film generation efficiency is guaranteed.

The present invention discloses a composite cylinder relative motion control mechanism and its use method, comprising an outer cylinder, an inner cylinder, a locking pin, a locking pin spring, an end cap, a manipulator, a push rod, and a manipulator spring. The end cap is connected to the inner cylinder, and the manipulator step surface abuts the inner end surface of the locking pin, causing the locking pin to remain in a resilient state and to be stuck on the outer cylinder step, thereby locking the inner and outer cylinders. When the push rod pushes the manipulator, the locking pin presses down to unlock the inner and outer cylinders, thereby pushing the inner cylinder out. When the inner cylinder's pushing stroke is completed, the push rod pulls the inner cylinder back through the locking pin. After the inner cylinder is reset, the locking pin springs up, relocking the inner and outer cylinders. The present invention achieves the pushing, pulling, and locking of the inner cylinder through the locking pin control mechanism and the push rod. It has a compact structure, requires little push and pull force on the push rod, and provides reliable locking. It can be applied to a split-type mortar shell automatic assembly system to improve projectile assembly speed and operational reliability.

The present application relates to an outer box structure of a composite cylinder-type dual-path underground gas pressure regulating box, including: an outer shell box, a pressure regulating pipeline and a pressure-bearing connecting pipe. The pressure regulating pipeline is two arranged in parallel, including a main cylinder and an auxiliary cylinder. The upper part of the main cylinder is open, and there is a high-pressure chamber inside, which is connected to the inlet pipeline. The bottom of the main cylinder is provided with a connecting hole. The auxiliary cylinder is arranged on one side and outside the bottom of the main cylinder, and there is a low-pressure chamber inside, which is connected to the high-pressure chamber through the connecting hole. The low-pressure chamber is connected to the outlet pipeline. The outer shell box covers the two pressure regulating pipelines. There are two pressure-bearing connecting pipes. The upper end of the pressure-bearing connecting pipe is fixedly connected to the upper top plate of the outer shell box, and the lower end matches the opening of the main cylinder and is fixedly connected. The upper top plate of the outer shell box is located on the pressure-bearing connecting pipe and is suitable for installing a pressure regulating core. By using the pressure-bearing connecting pipe to bear the weight of the integrated pressure regulating core to be installed, the problem of the two main cylinders not being able to meet the welding requirements and the poor structural strength is solved.

The utility model provides a composite cylinder gasket flanging die, and relates to the technical field of flanging dies. A composite cylinder gasket flanging die comprises an upper die plate, a lower die plate, a positioning block and a limiting assembly, the positioning block is arranged on the face, facing the upper die plate, of the lower die plate, a plurality of connecting grooves are formed in the side face of the positioning block, the limiting assembly is connected with the inner walls of the connecting grooves, the outer wall of the positioning block is attached to the inner wall of a protective ring, and the outer wall of the limiting assembly is connected with the inner wall of the protective ring. The positioning block and the cylinder opening are correspondingly arranged; the limiting assembly comprises a connecting frame, a spring and a connecting piece, the connecting frame is connected with the inner wall of the connecting groove, the spring is arranged in the connecting frame, and the two ends of the spring are fixedly connected with the inner wall of the connecting frame and the connecting piece respectively. The flanging device has the advantages that the stainless steel protective ring with the warping phenomenon can be effectively pressed, the position of the protective ring can be further limited, the flatness of the protective ring is effectively guaranteed, and then the effect that the flanging procedure is accurate is guaranteed.

The invention relates to the technical field of manufacturing of metal composite materials, and discloses a corrosion-resistant and wear-resistant bimetal composite cylinder liner which is prepared through the following steps that the inner wall of an outer-layer matrix steel pipe is pretreated and coated with an interface activation flux; raw materials containing waste steel, ferrochrome and the like are molten, ferrotitanium and ferroboron are sequentially added for alloying, then ferric oxide powder and metal yttrium are added for modification treatment, and inner-layer alloy liquid is obtained; the preheated outer-layer matrix steel pipe is placed in a rotating state, and the inner-layer alloy liquid is poured; and after the to-be-solidified pipe fitting is cooled to the room temperature, the pipe fitting is heated to the austenitizing temperature, heat preservation is conducted, and then isothermal quenching treatment is conducted. According to the method, interface oxides are effectively removed and firm metallurgical bonding is promoted by utilizing the interface activation flux; a core is formed through in-situ reaction of metal yttrium and ferric oxide so as to refine grains; and a lower bainite and retained austenite mixed structure is obtained through isothermal quenching, the comprehensive mechanical property of the cylinder sleeve is improved, and the service life of the cylinder sleeve is prolonged.

The invention relates to the technical field of three-cylinder dryers, and discloses an environment-friendly three-cylinder dryer which comprises a base plate and a composite cylinder, the composite cylinder is arranged above the base plate, a driving rotating assembly is arranged between the base plate and the composite cylinder, an end cover is arranged at the front end of the composite cylinder, and a feeding pipe opening is formed in the center of the end cover; the end cover is provided with an air inlet feeding mechanism through a feeding pipe opening, and an air guide discharging mechanism is arranged at the end, away from the air inlet feeding mechanism, of the composite barrel. According to the environment-friendly three-cylinder drying machine, the air guiding and discharging mechanism is arranged, a material can be effectively limited and blocked through a material baffle with holes, it is guaranteed that airflow can pass through the air guiding and discharging mechanism, air can be further effectively filtered through a filter screen plate, it is guaranteed that the air exhausted to the outside reaches the emission standard, and after long-time use, the environment-friendly three-cylinder drying machine is not prone to falling off. The perforated striker plate and the filter screen plate can be effectively taken out by rotating the opening knob and pulling the handle, cleaning and maintenance are convenient, and time and labor are saved.

The invention provides a small-size composite material barrel and a forming device and method thereof, and belongs to the technical field of composite material forming. The problems that when a small-size composite material barrel is formed through metal mold matching, due to the fact that the internal structure is complex, demolding is difficult, products are prone to being damaged, and the precision is difficult to guarantee are solved. The forming device comprises a metal core mold, a water-soluble block, a sectioning mold, a pressurizing frame, an upper cover plate, a lower cover plate and a reinforcing area mold block, the metal core mold is sleeved with the water-soluble block, the surface of the water-soluble block is provided with a groove and boss structure, and the groove and boss structure is matched with grid ribs in a composite material cylinder. The sectioning mold comprises a plurality of arc-shaped modules, the arc-shaped modules are spliced and connected in the circumferential direction, the sectioning mold is sleeved with the pressurizing frame, the upper cover plate is connected with the upper portion of the pressurizing frame through screws, and the lower cover plate is connected with the lower portion of the pressurizing frame through screws. The forming die is mainly used for forming small-size composite material barrels.

This invention discloses a method for preparing a titanium-copper explosive composite cylinder for a high-conductivity cathode roller, belonging to the field of electrolytic copper foil production equipment. The method includes the following steps: preparing TA1 industrial pure titanium plates and T2 industrial pure copper plates; performing staggered explosive composite welding on the TA1 titanium plate and T2 copper plate; rolling the titanium-copper explosive composite plate into a circle; welding the opening of the rolled titanium-copper explosive composite plate, wherein the internal copper weld is performed using gas metal arc welding (GMAW) and the external titanium weld is performed using friction stir welding; and the external titanium weld is subjected to local laser heating treatment to achieve uniformity between the titanium weld and the base material. The preparation method provided by this invention achieves a stable connection between titanium and copper, which are dissimilar and incompatible metals, simplifies the production process of the titanium cylinder for the cathode roller, improves production efficiency, reduces the amount of machining waste for the titanium cylinder for the cathode roller, and lowers the material cost in the cathode roller manufacturing process.

The application discloses a method and device for determining design parameters of a composite cylinder type of an offshore wind farm, comprising obtaining and analyzing physical characteristics and mechanical characteristics of soil samples, combining environmental parameters to establish an engineering geological environment evaluation model, inputting the design parameters of the composite cylinder type into the engineering geological environment evaluation model to calculate actual design values of the composite cylinder type, and judging whether the design parameters meet construction conditions. The method for determining the design parameters of the composite cylinder type of the offshore wind farm according to the embodiment of the application comprehensively considers the physical characteristics and mechanical characteristics of the soil samples of the installation site, so that the optimization process of the design parameters of the composite cylinder type is more flexible, comprehensive, accurate and efficient, and the safety and stability during the operation of the wind turbine are ensured.

The present invention relates to a novel hydrostatic interference fit joint, in which an assembly chamber has two diameters: a section S1 and another, thinner section S2, which forms part of a cylinder composed of several cylinders with an interference fit joint. The chamber needs to be loaded with a cylinder that fits snugly into section S1 but does not fit into the thinner section S2, so the cylinder has two diameters. Then, when the assembly chamber is closed and pressure is increased, the diameter of the assembly chamber, particularly the diameter of section S2, increases, and when the pressure is released, the composite chamber is assembled with section S2. For ease of assembly, the assembly chamber is preferably operated upright with section S1 on top so that when pressure is increased, the composite cylinder falls inside section S2 under its own weight. This is then disassembled, resulting in a composite cylinder with another cylinder joined by an interference fit. For reuse, another section S2 needs to be installed in the assembly chamber.

The invention relates to an electro-hydraulic vibration icebreaking composite oil cylinder with an avoiding function. The composite oil cylinder comprises an avoiding oil cylinder and a vibration oil cylinder, the avoiding oil cylinder and the vibration oil cylinder are both single-rod oil cylinders. According to the invention, the hydraulic cylinders with two functions of hydraulic vibration and avoidance are combined together, so that the engineering problem of avoiding when encountering obstacles while efficiently breaking ice is perfectly solved. Vibration impact deicing is adopted instead of traditional rolling type icebreaking, too heavy equipment dead weight is not needed, generally, the weight is only a fraction of that of traditional icebreaking equipment, and the flexibility of equipment operation and transition can be greatly improved; vibration impact energy is concentrated, so that a hard road ice layer can be crushed more easily, and the ice breaking efficiency is improved while the energy consumption of equipment is reduced; two or more ice-breaking composite oil cylinders can be used in pairs in a combined mode and alternately impact the road surface, the counter-acting force influence of impact on equipment can be reduced, and the vibration ice-breaking effect can be better achieved.

The present application relates to a kind of straight cone composite cylinder integrated forming die and its forming method, belong to precision hot forming processing technical field, solve the problems such as existing straight cone composite cylinder process complex, long cycle, processing difficulty, poor product precision, high cost.The die includes sequentially connected from bottom to top base, bulging core, pressing plate, and by bottom to top sleeve set on the bulging core closing die and pad ring;The bulging core can simultaneously realize the closing, flaring and bulging process of part;The base is used as the positioning reference of bulging core, and the bulging core is fixed with the pressing plate;The closing die is used for the closing forming of composite cylinder;The pad ring is used for transmitting external pressure to closing die.The forming die of the present application can realize the overall forming process of straight cone composite cylinder closing, flaring and bulging, simplify the processing procedure of existing straight cone composite cylinder, shorten processing cycle, reduce processing difficulty and cost, improve product size precision.

The utility model belongs to the field of detection devices, and particularly relates to a large-size composite material barrel hydraulic pressure airtight tool which comprises a pair of supporting bases, each supporting base comprises a saddle seat and an upper support, the upper supports are installed above the saddle seats, and the upper supports are connected with the saddle seats. A plurality of sets of mounting holes are evenly formed in the side walls of the saddle seats on the two sides and the upper support, connecting rods are mounted in the mounting holes, a front end cover is fixed to one end of each connecting rod, a rear end cover is fixed to the other end of each connecting rod, and exhaust pipes are fixed to the front end covers and the rear end covers respectively. Second high-pressure ball valves are fixed to the ends of the exhaust pipes on the two sides, a water inlet pipe is further fixed to the front end cover, and a first high-pressure ball valve is fixed to the end of the water inlet pipe. The tool is simple in manufacturing process, low in manufacturing cost, short in construction period, capable of being repeatedly used, and suitable for the water pressure airtight test of the large-size composite material barrel.

The invention provides a lightweight stackable fiber composite material cylinder and a forming method, and belongs to the field of fiber composite material design and manufacturing. The problems of light weight, rigidity, straightness and column loading stability of the large-length-diameter-ratio cylinder and the problems of storage and transportation turnover during batch demand are solved, the light weight of the large-length-diameter-ratio cylinder is achieved, the problem of integral forming of the large-length-diameter-ratio stackable fiber composite material cylinder is solved, column loading is stable, cost is reduced, efficiency is improved, and the large-length-diameter-ratio stackable fiber composite material cylinder is suitable for large-length-diameter-ratio stackable fiber composite material cylinders. And the requirements of batch storage and transportation are met. The fiber composite material cylinder comprises a fiber composite material cylinder body and a plurality of reinforcing frames, the periphery of the fiber composite material cylinder body is sleeved with the reinforcing frames, the outer walls, in the four perpendicular directions, of the reinforcing frames are planes, and the planes are stacking faces. The large-length-diameter-ratio cylinder is formed through the fiber composite material, the reinforcing frame is designed at the weak supporting position, and the rigidity and straightness of the large-length-diameter-ratio cylinder are guaranteed.

The utility model provides a plug structure with a water flow adjusting function, which relates to the technical field of engines and comprises an upper-layer water jacket, a plug, a lower-layer water jacket and a composite cylinder cover. The upper-layer water jacket and lower-layer water jacket combined type cylinder cover is cast in an integrated structure, a mounting hole for communicating the upper-layer water jacket and the lower-layer water jacket is formed in the outer side of the combined type cylinder cover, the plug is detachably mounted in the mounting hole, and an adjusting water hole in the radial position is formed in the plug. Part of cooling water enters the upper-layer water jacket from the lower-layer water jacket through the adjusting water hole in the plug. A traditional integrated water hole is replaced by the adjusting water hole in the detachable plug, the plug can be detached, the adjusting water hole can be conveniently cleaned, it is guaranteed that the water feeding amount is accurately adjusted, and then the cooling efficiency of the whole engine is guaranteed.

The present invention relates to a heavy-duty support passive movement device and a movement method thereof, belonging to the field of fiber composite material manufacturing equipment. The device comprises a pair of mining wheel with bearing bushes, a base plate, a linear guide rail, a transmission seat, a lead screw, a handwheel, and a polyurethane support wheel. The device is suitable for supporting heavy core molds of various sizes, so that they do not rely on rotating equipment or dual crane equipment for rotation and movement, thus avoiding the long-term occupation of the crane. The device meets the requirements of circumferential coordinated rotation and axial stable coordinated movement of heavy core molds during operation and processing, and realizes stable and safe removal of the core mold during the demolding of the fiber composite cylinder.

The utility model relates to the field of cable tension, especially a constant tension device for wharf mooring cable, including composite cylinder mechanism and first gas cylinder, the composite cylinder mechanism includes the outer jar and the inner jar in the outer jar, the cavity is left between the outer jar and the inner jar, the outer jar is equipped with the outer piston in the cavity, the outer piston will the cavity divide into liquid cavity and gas cavity, the inner jar is equipped with the adjusting assembly, the adjusting assembly includes the inner piston and the piston rod connected with the inner piston, the inner piston will the inner jar inside part divide into the rod cavity and the rod cavity, the liquid cavity and the rod cavity are filled with liquid, and the liquid cavity and the rod cavity are communicated, the first gas cylinder and the gas cavity are communicated. Adopt the utility model, keep the cable tension relative constant at the same time, simple structure, small, portable.

The invention relates to the technical field of mechanical manufacturing, and discloses a multi-station rotary table necking machine structure which comprises a supporting frame, a high-thrust composite air cylinder is fixedly installed at the top of the supporting frame, a sliding plate is fixedly installed at the telescopic end of the high-thrust composite air cylinder, and a feeding assembly is arranged on the outer wall of the supporting frame. The inner wall of the supporting frame is rotationally connected with a rotating disc, and a protective shell is fixedly installed at the bottom of the supporting frame. Materials are moved to the telescopic end of a feeding air cylinder through matched transmission of a washboard feeding device and a first conveying channel, the materials with unqualified postures are pushed back into a hopper through matched use of a first detection device and a pushing air cylinder, and the materials are pushed to the position above a posture adjusting device through the feeding air cylinder; the posture of the materials is adjusted through the posture adjusting device, at the moment, the materials are pushed to the position above the second conveying channel through the feeding air cylinder, and the materials are pushed into the third conveying channel through the second conveying channel.

The application relates to the technical field of strength detection, and discloses a breathing apparatus winding composite gas cylinder strength detection device and a manufacturing process, wherein the breathing apparatus winding composite gas cylinder strength detection device comprises a test table, a rack arranged on the test table, a pulley lifting unit, a sliding seat and a hammer head, further comprises an ejection mechanism, the ejection mechanism comprises a cavity arranged in the hammer head, a bottom cylinder fixed at the bottom of the cavity and a sleeve slidingly sleeved outside the bottom cylinder, a partition plate is fixed in the sleeve, the partition plate divides the inner cavity of the sleeve into a first chamber and a second chamber from top to bottom in sequence, a channel is arranged through the partition plate, an impact rod is arranged through the channel, and the bottom end of the impact rod extends into the second chamber and is used for performing secondary impact detection. The ejection mechanism is arranged, the impact rod is ejected at high speed from the ejection port by triggering, the same area of the gas cylinder which has been impacted is punctured and hit, and the composite impact load that the gas cylinder may suffer in an actual accident can be effectively simulated.

The utility model discloses an internal combustion engine composite cylinder gasket reliable in installation, and belongs to the technical field of engine sealing. The internal combustion engine composite cylinder gasket reliable in installation comprises a composite gasket body, a plurality of cylinder holes and a plurality of bolt holes are formed in the composite gasket body, bolt hole gaskets are arranged in the bolt holes, and the bolt hole gaskets are wrapped by bolt hole protection rings and limited on the composite gasket body. According to the composite cylinder gasket of the internal combustion engine, the bolt hole gasket is arranged in the bolt hole of the composite gasket body through the bolt hole protective ring, the compressive strength of the bolt hole is enhanced through the bolt hole protective ring and the gasket, the periphery of the composite gasket body is supported and limited, and when a bolt is used for locking, locking force acts on the bolt hole protective ring and the gasket, so that the locking effect is good. Deformation of the cylinder body or the cylinder cover is prevented, the problems that the composite cylinder gasket is damaged due to extrusion of the bolt and the bolt is prone to loosening are solved, the service life of the composite cylinder gasket is prolonged, and sealing reliability is improved.

The present invention provides a special fixture for axial compression testing of composite cylinders, which relates to the field of test fixture technology. The fixture comprises: multiple flexible fixture groups and a base. Each flexible fixture group includes two oppositely positioned flexible fixtures. When clamping a composite cylinder, one flexible fixture in each flexible fixture group is located inside the composite cylinder, while the other is located outside. The two flexible fixtures can move toward each other to clamp the composite cylinder. The flexible fixture groups are slidably arranged on the base around the circumference and in the radial direction of the circumference. The solution provided by the present invention is simple in structure, easy to use, and can accommodate composite cylinders of various diameters.