41results about How to "Guarantee the reliability of use" patented technology

The invention provides an aeroengine pipeline vibration testing device and an aeroengine pipeline vibration testing method. The aeroengine pipeline vibration testing device comprises a vibration excitation device, a pipeline clamping device and a vibration test analysis device, wherein the vibration excitation device is used for conducting vibrating excitation on an aeroengine pipeline; the pipeline clamping device is used for clamping the aeroengine pipeline and is connected with the vibration excitation device; and the vibration test analysis device is used for performing vibration signal detection analysis on the aeroengine pipeline during the vibration testing process. The aeroengine pipeline vibration testing device and the aeroengine pipeline vibration testing method realize the effect of simulating actual assembly condition of the engine pipeline, realizes the inherent frequency and dynamic stress tests of the pipeline under multi-order resonance excitation, and realize vibration stress monitoring and test analysis of key points of the pipeline under different assembly structures. The aeroengine pipeline vibration testing device and the aeroengine pipeline vibration testing method realize the multi-order resonance excitation of the engine pipeline in an integral assembly state by utilizing the vibration excitation device and the pipeline clamping device, realizes vibration response test and analysis of the aeroengine pipeline vibration under an adjustable assembly structure by utilizing the vibration test analysis device and an assembly position measuring device, and provide data support for optimizing pipeline assembly quality and verifying reasonability of piping assembly.

The invention discloses a full-digital proportion integration differentiation (PID) controlled light-emitting diode (LED) light source driver, comprising a control processing unit, a user interface unit, an LED driving unit, an LED light source and a power supply management unit, wherein the control processing unit comprises a central processing unit (CPU) processing system, a PID control system, a pulse-width modulation (PWM) system and a feedback information quantification system which are integrated in a single chip microcomputer; and an output end of the LED driving unit is connected with the feedback information quantification system of the control processing unit through a feedback sampling unit. In the practical application, compared with traditional light source driving scheme which is set up through an analogue integrated circuit, the full-digital PID controlled LED light source diver disclosed by the invention is greatly improved in stability, service life, economical efficiency, and convenience and effectiveness of size or control. In addition, the full-digital PID controlled LED light source diver conveniently performs quantification management, is easy to develop and strong in applicability, and has strong market competitiveness.

The invention provides a tissue clamping device for endoscope, comprising: a clamp with at least two clamp legs; a control line detachably connected to the perforation at the proximal end of the clamp; an axial sheath arranged around the control line; a sleeve detachably connected to the distal end of the axial sheath is used for accommodating the proximal end of the clamp; a retainer used to maintain the connection between the sleeve, and used to detach the axial sheath from the sleeve through the deformation of the retainer under the action of the control line; a control mechanism connectedto the proximal end of the axial sheath and the proximal end of the control line; and the control line can control at least two clamp legs of the clamp to open or close through the control mechanism.According to the invention, besides the function of rotating and multiple opening and closing, the tissue clamping device for endoscope has advantages of simplified structure, low cost in production and quality control, and the use stability and reliability of the tissue clamping device are guaranteed.

The invention provides a single-output-shaft hub-type DC brushless motor. The single-output-shaft hub-type DC brushless motor includes a rotor, a stator, a connection shaft, bearings, a Hall element, a Hall element mounting frame, an oil seal, a dustproof ring and an O-shaped seal ring. The rotor includes a first shell, a second shell and a steel magnet. The steel magnet is connected with a rim fixedly. The first shell includes the rim, spokes and a bearing sleeve, wherein the rim and the spokes are formed integrally. The Hall element mounting frame is fixed arranged on the stator. The Hall element is fixedly mounted on the Hall mounting frame. The connection shaft is a hollow shaft. According to the invention, the rotor is convenient in assembly, high in precision and good in adaptability. The single-output-shaft hub-type DC brushless motor is good in use safety and reliability and quick and convenient in maintenance and repair.

The invention discloses a method for preventing drop and hoisting of a single hanging ring. The method comprises the steps that a, a drop preventing mechanism of a system for preventing drop and hoisting of the single hanging ring is opened and made to be in an unlocking state; b, when one of the hanging rings is mounted in the position, on one side of an elevator, of a lug hole of a lifting lug, an induction part of a drop preventing part sends a signal, after receiving the signal, a controller forbids moving of a runner wagon, the runner wagon is in a stop state, and after the hanging ring enters the lug hole, the drop preventing mechanism is in a locking state, and the hanging ring is blocked in the lug hole; and c, and the other hanging ring is mounted in the position, on the other side of the elevator, inside the lug hole of the lifting lug, the induction part of the drop preventing part sends a signal, and after receiving the signal, the controller allows the runner wagon to move. It can be effectively guaranteed that the two hanging rings both enter the lug hole, so that single hanging ring hoisting is avoided. Through the joint effect of the drop preventing mechanism and the drop preventing part, the hanging rings can be blocked firmly in the lug hole, slipping is avoided, the working stability and reliability of the elevator are improved, and the safety accident is eradicated.

The invention relates to the technical field of mechanical devices, and particularly discloses a grabbing device for intelligent manufacturing of engineering equipment. The device comprises a transverse rail, an electric appliance cabinet and a grabbing mechanism, a moving beam is arranged above the transverse rail, a walking motor is installed at the rear end face of the moving beam, a power gear is connected to the lower end of an output shaft of the walking motor, a gear rack meshed with the power gear is connected to the outer side face of the transverse rail, and a lead screw motor is arranged on the front side face of the moving beam; a moving groove is formed in the lower surface of the moving beam, a lead screw is arranged in the moving groove, a moving block is arranged in the moving groove, a connecting column extending out of the moving groove is connected to the moving block, and the lower end of the connecting column is connected with the grabbing mechanism; and according to the grabbing device, accurate position adjustment and accurate grabbing of an object can be achieved, it is effectively guaranteed that slipping does not occur when the object is grabbed, damage to the object due to too large clamping force is prevented, and the use reliability of the grabbing device is effectively guaranteed.

The invention discloses an antenna interconnection structure with good grounding, and belongs to the field of radar communication. The structure comprises a multi-layer microwave plate and an antenna array, and is characterized in that the structure also comprises a first gold bonding wire, a second gold bonding wire and a heat dissipation cavity; a chip is bonded on the multi-layer microwave plate, the multi-layer microwave plate is provided with a via hole and a coaxial ground hole, the multilayer microwave plate is provided with a microstrip line and an insulator, one end of the insulator passes through a via hole of the multilayer microwave plate and is connected with the microstrip line on the multilayer microwave plate through a first bonding gold wire, the other end of the insulator passes through the heat dissipation cavity and is welded with the antenna array, and the chip is connected with the microstrip line through a second bonding gold wire; the insulator is provided with a welding point, the antenna array is welded on the welding point, and the upper end face of the insulator and the microstrip line are located on the same horizontal plane. According to the invention, signal energy loss can be greatly reduced, and signal transmission stability and use reliability are effectively guaranteed.

The invention discloses a dust cleaning device for quartz clock assembly, and belongs to the technical field of quartz clock production. The device comprises a base, a workbench is arranged over the base. Stand columns are vertically arranged between the workbench and the four corners of the base. Protruding blocks are fixedly connected to the left sides and the right sides of the front side walland the rear side wall of the workbench. Polish rods parallel front and back are fixedly connected between a left protruding block and a right protruding block. A dust suction box and a dust blowing box are arranged on the left side and the right side of the upper portion of the workbench correspondingly. The dust suction box and the dust blowing box are each provided with an opening, and the openings are close to each other. The bottoms of the dust blowing box and the dust blowing box are fixedly connected with sliding blocks capable of being in sliding connection with the front polished rodand the rear polished rod. The invention is suitable for quartz clock assembling and dust removing. A clamping disc is driven by ta motor to rotate, a worker can conveniently conduct position conversion when assembling a quartz clock, the flexibility is high, and therefore the working efficiency of the worker can be improved.

The invention provides a cooking device and a control method thereof, and relates to the technical field of kitchen electrical appliances. The cooking device comprises a device body with one side open, a door body covering the open end of the device body, a camera assembly and a driving assembly, wherein the device body is provided with an inner liner; the door body comprises a door frame, an inner door plate arranged in the door frame, and an outer door plate arranged in the door frame; the inner door plate and the outer door plate are arranged in a spaced manner; a cavity is formed between the inner door plate and the outer door plate; the inner door plate is made of a transparent material; the camera assembly is arranged in the cavity, and can shoot foods in the cooking cavity through the inner door plate; and the driving assembly is used for driving the camera assembly to ascend and descend so as to change the height of the camera assembly. Through adoption of the cooking device, the problems that the working reliability of a camera is adversely affected and early damage of the camera is caused easily since the camera is arranged in the cooking cavity and the cooking cavity hashigh temperature and high humidity and is often accompanied by oil fume, vapor and the like in the cooking device are relieved.

The invention discloses a method for improving the axial temperature distribution uniformity of a stator, and belongs to the technical field of generators. The method is characterized by comprising the steps of a, installing a stator axial temperature distribution uniformity device on a wind driven generator; b, installing and arranging a stator pressing plate I, a stator pressing plate II, an axial annular plate, a circumferential annular plate and a stator core of the stator axial temperature distribution uniformity device, setting an included angle between the circumferential annular plateand the axial annular plate to be 85-95 degrees, and forming a back space of the stator core; and c, setting an air flow circulating in the back space of the stator core to be the same in flow rate and opposite in flow direction with an air flow circuiting in the clearance between the stator and the rotor at the same axial position. According to the invention, the static pressure difference can bemaintained at a fixed value, the axial wind speed of a stator wind channel is relatively uniform, the operation is simple, the adjustment is easy, the axial temperature difference between the statorcoil and the iron core can be effectively reduced, and the reliability and the stability of the generator are guaranteed.

The invention discloses a single-hoisting-ring hoisting prevention device and belongs to the technical field of oil drilling equipment. The single-hoisting-ring hoisting prevention device comprises stopping blocks arranged in lower slots of hoisting lugs, and is characterized in that the stopping blocks are fixed in the lower slots through first rotating shafts and provided with sensing components for monitoring the positions of hoisting rings, and trigger blocks are arranged on the inner walls of the lower slots; and the device further comprises a single-hoisting prevention component which comprises a controller, and the controller is connected with the sensing components in a radio mode and used for receiving signals sent by the sensing components to control starting and stopping of traveling blocks. The device can accurately judge whether hoisting rings on the two sides of a lift sub enter hoisting lug holes or not and then send commands for hoisting or non-hoisting, single-hoisting-ring hoisting can be effectively prevented, and hoisting safety is improved.

The invention discloses a disengagement prevention and single suspension ring prevention lifting system, and belongs to the field of oil drilling equipment. The system comprises a disengagement prevention component, the disengagement prevention component comprises a stop block and a lock block, the stop block is in locked connection with the lock block, a sensing component is arranged on the stop block, and a trigger block is arranged on the inner wall of a lower notch; the system further comprises a single suspension prevention component and a disengagement prevention mechanism, the single suspension prevention component comprises a controller, the controller is in wireless electric connection with the sensing component, the disengagement prevention mechanism comprises a locking block and a baffle block, the locking block is in locking connection with the baffle block, the locking block comprises a latch hook portion and a stress portion, the baffle block performs pendulum motion around a rotating shaft, the baffle block swings clockwise and is locked with a latch hook portion of the locking block, the baffle block swing anticlockwise and is unlocked with the locking block, the baffle block comprises a locking portion and a disengagement prevention portion, the locking portion is located inside the upper notch of a suspension lug, and the disengagement prevention portion is located inside a lug hole of the suspension lug. A suspension ring can be firmly blocked into the lug hole, and the using stability of the whole lifting system is ensured; lifting of the single suspension ring can be avoided, and potential safety hazards are eradicated.

A fluidized bed semi-dry desulfurization system and method, comprising a pre-dust removal device connected to a desulfurization tower and a bag filter; the pre-dust removal device comprises a hollow shell, and both sides of the inner surface of the hollow shell are provided with Guide rails, the number of the guide rails is a pair, and the other pair of the guide rails are mirrored by the vertical center line of the hollow shell as a mirror image line, and the upper end and the lower end of the inner surface of the guide rail are fixedly connected A guide column is attached to the guide column, a guide plate is sleeved on the guide column, and a disc-shaped body is fixedly connected between the other pair of the guide plates. Combined with other structures or methods, the defects of the prior art that the adsorption tank body is not conducive to replacement in the pre-dust removal device, the pre-dust removal performance of the pre-dust removal device after a long period of use is not good, and the dedusting effect of the pre-dust removal device are effectively avoided.

The invention discloses a method for recording the service time of a device, and belongs to the field of automatic control. The method comprises the following steps: a, an intelligent module is mounted on the device, and when a ferromagnetic object approaches the intelligent module, a magnet in the intelligent module moves and contacts a conductor under the action of magnetic force; b, a chip in the intelligent module identifies the communication of the conductor, and starts to record the service time of the device; and c, when the ferromagnetic object moves away from the intelligent module, the magnet resets under the elastic force of a spring in the intelligent module, and is separated from the conductor, and the chip identifies the disconnection of the conductor, and ends the recordingof the service time of the device. The method can automatically and effectively monitor and record the working time of the device without regular manual recording, so the use reliability and the use safety of the device are guaranteed, and the labor intensity of maintenance personnel is reduced.

The embodiment of the invention provides a space-based network data security processing center device. The space-based network data security processing center device comprises a public platform, a computing unit, a network security unit and an interconnection and interworking load unit, wherein the public platform is electrically connected with the computing unit, the network security unit and the interconnection and interworking load unit respectively; the public platform is used for providing power supply for the computing unit, the network security unit and the interconnection and interworking load unit; and the public platform is respectively connected with the computing unit, the network security unit and the interconnection and interworking load unit in a loose coupling connection mode. According to the space-based network data security processing center device, safe and reliable operation of space-based networking is guaranteed, and the use reliability and security of the space-based network data security processing center device are guaranteed to the greatest extent.

The invention discloses a method for preventing drop and hoisting of a single hanging ring. The method comprises the steps that a, a drop preventing mechanism of a system for preventing drop and hoisting of the single hanging ring is opened and made to be in an unlocking state; b, when one of the hanging rings is mounted in the position, on one side of an elevator, of a lug hole of a lifting lug, an induction part of a drop preventing part sends a signal, after receiving the signal, a controller forbids moving of a runner wagon, the runner wagon is in a stop state, and after the hanging ring enters the lug hole, the drop preventing mechanism is in a locking state, and the hanging ring is blocked in the lug hole; and c, and the other hanging ring is mounted in the position, on the other side of the elevator, inside the lug hole of the lifting lug, the induction part of the drop preventing part sends a signal, and after receiving the signal, the controller allows the runner wagon to move. It can be effectively guaranteed that the two hanging rings both enter the lug hole, so that single hanging ring hoisting is avoided. Through the joint effect of the drop preventing mechanism and the drop preventing part, the hanging rings can be blocked firmly in the lug hole, slipping is avoided, the working stability and reliability of the elevator are improved, and the safety accident is eradicated.

The invention discloses an intelligent module, and belongs to the technical field of automatic control equipment. The intelligent module comprises a chip and is characterized by further comprising a bracket, the bracket is internally provided with a mounting hole, a first wire channel and a second wire channel, a plug is arranged above the mounting hole, a step is arranged below the mounting hole,and a limiting piece and a magnet are mounted in the mounting hole; the outer side of the magnet is sleeved with a spring, one end of the spring makes contact with the step, and the other end of thespring makes contact with the limiting piece; and the first wire channel is internally provided with a first wire, and the second wire channel is provided with a second wire, the first wire channel communicates with the mounting hole, one end of the first wire is connected with the chip, the other end of the first wire is located below the magnet, one end of the second wire is connected with the spring, and the other end of the second wire is connected with the chip. The intelligent module can automatically monitor and record the working time of the equipment, periodical manual recording is not required, using reliability and safety of the equipment can be ensured, and the working intensity of maintenance personnel can be reduced.

The invention discloses an oil groove sealing structure, and belongs to the technical field of bearings of power generation equipment. The oil groove sealing structure comprises a sealing cover and asealing tooth matched with a rotating part, wherein a sealing gap is formed between the sealing tooth and the rotating part; and the sealing tooth is in clearance fit with the sealing cover. The oil groove sealing structure is characterized in that an adjusting piece is arranged on the sealing cover; a screw rod is connected onto the adjusting piece in a penetrating mode; the screw rod is sleevedwith a nut; a notch is formed in the end of the screw rod; the sealing tooth is connected with the adjusting piece through the screw rod in a fastened mode; a groove is formed in the sealing tooth; areinforcing screw plug is embedded in the groove; one end of the screw rod stretches into the reinforcing screw plug and makes contact with the bottom wall of the groove; and the other end of the screw rod is sleeved with the nut. According to the oil groove sealing structure provided by the invention, the sealing gap between the sealing tooth and the rotating part can be rapidly and flexibly adjusted according to the actual operation condition, so that the lasting sealing performance can be kept, and the sealing reliability and the sealing effect are improved.