9results about How to "Good work reliability" patented technology

This invention provides a triboelectric nanogenerator and its fabrication method. The generator operates in a vertical contact-separation mode, with a positive friction layer of PET film and a negative friction layer of PDMS composite film with a single layer of dense SiO₂ microspheres inserted on its surface. The fabrication process employs a two-step spin-coating method: first, a PDMS solution is spin-coated onto a substrate; then, a suspension of SiO₂ microspheres is spin-coated onto the uncured surface. After heating and curing, a composite negative friction layer is formed, which is then assembled with electrodes and a support structure. This invention significantly increases the triboelectric contact area and enhances charge trapping capability by constructing the SiO₂ microsphere insertion layer, thereby greatly improving output performance. Furthermore, the fabrication process is simple and low-cost, making it suitable for powering microelectronic devices and self-powered sensing applications.

A tunnel MJS construction method foundation reinforcing device and a method for using the same, the reinforcing device comprising a rack, a grouting machine, an infrared emitter, an infrared receiver, a first mounting assembly, a second mounting assembly, the infrared emitter being rotatably connected to one side of a grouting rod on the grouting machine through the first mounting assembly, the infrared emitter being coaxial with the grouting rod on the grouting machine when the first mounting assembly is rotated to a first position, the second mounting assembly comprising a positioning disc, a gear and a plurality of support rods, the infrared receiver and the gear being coaxially arranged on the positioning disc, the support rod comprising a fixed rod and a rack, one end of the rack being engaged with the gear, and the other end of the rack being fixedly connected to one end of the fixed rod, the gear being used to drive the plurality of fixed rods to synchronously extend until the other end face of the fixed rod is in contact with the inner wall of the grouting hole. The design realizes the alignment of the grouting hole and the grouting hole through the matching of the infrared emitter and the infrared receiver, and has small alignment error and good precision.

This invention provides a laser tube cutting chuck, comprising a front cover, four grippers, two sets of drive devices (two sets in each set) for correspondingly driving the movement of the four grippers, a rear cover, a connecting seat for fixing the front and rear covers together, a frame, a rotary drive mechanism mounted on the frame for driving the rotation of the four grippers, and two sets of rack and pinion synchronization mechanisms fixedly mounted at the rear end of the front cover for rigidly constraining the motion synchronization of the two sets of drive devices in the same set of the two sets of drive devices. The synchronization mechanism includes two synchronous drive racks fixedly connected to the two sets of drive devices in the same set, two synchronous gears rotatably mounted on the front cover and correspondingly meshing with the two synchronous drive racks, and synchronous connectors at both ends meshing with the two synchronous gears. This chuck enables precise synchronization during the movement of the two sets of grippers (up / down and left / right), and the drive devices and synchronization mechanisms operate smoothly without interference, ensuring reliable operation.

The utility model provides an airborne multifunctional partial discharge detection device. The airborne multifunctional partial discharge detection device comprises an ultrasonic detection unit; the three-axis holder is connected with the unmanned aerial vehicle; the first shell is connected with the three-axis holder, the electromagnetic wave detection unit is arranged in the first shell and connected with the first antenna, and the ultrasonic detection unit is arranged on the first side wall of the first shell; the plurality of interfaces are arranged on the second side wall of the first shell, and the sealing unit surrounds the plurality of interfaces and is attached to the second side wall. The device has the advantages of being good in applicability and the like.

The application discloses a kind of automobile towing tow hook devices, it is related to automobile tow hook technical field;And the present application includes U-shaped main plate, cover plate, tow hook seat and bottom supporting plate, the tow hook seat is rotatably connected to one end of U-shaped main plate, the cover plate is connected at the end of U-shaped main plate and cover plate, the bottom supporting plate is slidably connected to the middle of U-shaped main plate;The middle of the lower end of the two sides of U-shaped main plate is provided with horizontal sliding slot, the middle of the lower end of the two sides of U-shaped main plate is provided with inclined sliding slot on one side, the other side of the lower end of the two sides of U-shaped main plate is provided with inner rotating hole, the outer side of two the inner rotating hole is provided with outer rotating hole;The present application is slid by adopting the sliding piece lever sliding linkage structure, cooperates with sliding slot guide transmission, by poking sliding piece can realize tow hook unfolding and storage, discard traditional hidden tow hook thread rotation disassembly mode, can effectively avoid the jamming, rust death phenomenon caused by thread rust, opening and closing switch simple labor-saving, emergency use efficiency is high.

The utility model discloses a gear shifting system and agricultural machinery. An output shaft of a driving part of the gear shifting system is in transmission connection with a driving shaft of a first pump; an output shaft of the hydraulic motor is in transmission connection with an input shaft of the gearbox; two first communication ports of the hydraulic motor are communicated with two oil ports of the first pump in a one-to-one correspondence manner; the switch control valve, the hydraulic motor and the first pump are arranged in parallel; two second communication ports of the switch control valve are communicated with two oil ports of the first pump in a one-to-one correspondence manner; the output shaft of the driving part is further in transmission connection with a driving shaft of the second pump, an oil inlet of the second pump is communicated with the oil tank, an oil outlet of the second pump is communicated with a loop formed by the hydraulic motor and the first pump to supplement oil to the loop, and the oil outlet of the second pump is further communicated with a gear shifting oil inlet of the hydraulic gear shifting assembly to be used for driving gear shifting so as to enable the gearbox to shift gears. The gear shifting system is simple in structure, low in production cost, good in collaboration, good in working stability and reliability and capable of rapidly and efficiently shifting gears and prolonging the service life of the gear shifting gear ring.

A material distributing and conveying device with a metal screening function comprises a shredder, the shredder is connected with a conveyor, a metal detector is installed on the conveyor, a material distributing device is installed at the output end of the conveyor, the material distributing device is provided with a first output port and a second output port, the first output port is connected with a pulverizer, and the second output port is connected with a metal receiving hopper. When a plastic product conveyed by the conveyor contains metal, a metal detector sends out a signal to be transmitted to a pneumatic electromagnetic valve of the material distributing device, the switching work of a first output port and a second output port in the material distributing device is switched by starting an air cylinder to work, and when a blade blocks the first output port, the part with the metal can be discharged from a specified channel; according to the method, the machine does not need to be stopped, manual selection is not needed, the productivity is increased, manpower is saved, the cost is saved, and the working efficiency is improved.

The utility model belongs to the technical field of power equipment, and discloses an interlocking device and switch equipment. The interlocking device comprises an operation panel, a shielding plate, a lock rod and an elastic piece. The operation panel is provided with an operation hole and a first long-strip-shaped hole. The first long-strip-shaped hole comprises a locking part and a sliding part. The shielding plate is arranged on the inner side of the operation panel in a sliding mode, and a connecting hole corresponding to the first long-strip-shaped hole is formed in the shielding plate; the lock rod comprises a locking section and an unlocking section, one end of the unlocking section is connected with the locking section, and the other end of the unlocking section slidably penetrates through the first long-strip-shaped hole and the connecting hole in the axial direction of the unlocking section. The locking section is used for being matched with the locking part to enable the shielding plate to be kept at the position for shielding the operation hole, the locking rod is pulled to enable the locking section to be separated from the locking part, and the unlocking section can slide in the sliding part to drive the shielding plate to be away from the operation hole; the elastic piece is configured to always have the trend of pulling the locking section to be close to the operation panel. According to the interlocking device, locking and unlocking of the shielding plate can be realized, so that the reliability of shielding the operation hole by the shielding plate is ensured.

The application relates to a valve timing system of a V-type two-cylinder four-valve engine. The application comprises cylinder blocks arranged in a V type, cylinder heads arranged on two sides of the cylinder blocks respectively, two intake valves and two exhaust valves arranged on each cylinder head respectively, a combustion chamber of the cylinder head being a pinnacled combustion chamber, an air inlet of the cylinder head being arranged at the front end of the engine, an exhaust port of the cylinder head being arranged at the rear end of the engine, and a space for accommodating a valve timing system being formed in the middle of the engine; the valve timing system comprises a camshaft arranged in the middle of the cylinder block and driven to rotate by a crankshaft, four cams arranged on the camshaft in the axial direction, four tappets, four push rods, one end of each push rod being movably connected with a corresponding tappet, and a rocker arm mechanism comprising two rocker arm seats oppositely arranged on each cylinder head and intake rocker arms and exhaust rocker arms rotatably arranged on each rocker arm seat. Under the premise of meeting various requirements of the vehicle level, high performance, small size and low cost of the engine are realized.