27results about How to "Extend mechanical life" patented technology

The invention relates to the technical field of non-electrical variable control or regulation systems, and discloses an exhaust gas aftertreatment flow channel back pressure dynamic regulation method, which comprises the following steps: acquiring a supply source phase reference signal and establishing cyclic mapping; a fluid channel pressure signal pulse range change rate is extracted to determine a feed-forward factor; determining a pressure signal trough interval as an action window; determining a reference amplitude based on the feedback deviation and using a feed-forward factor for compensation to determine a target adjustment instruction; the adjusting mechanism is driven to move in the action window, so that the response peak value is locked in the trough interval, the adjusting action is locked in the low-energy phase, kinetic energy intervention of fluid pulses on the adjusting mechanism is avoided, and mechanical abrasion is reduced; pulse characteristic feed-forward compensation is utilized to enable an adjusting instruction to sense the trend of a flow field, the response speed is increased while a signal is smoothed, and pressure balance under the transient working condition is maintained.

This invention discloses a magnetic connector portable hard drive with magnetic field guidance function, relating to the field of portable storage device technology. It includes a hard drive housing, a magnetic connector body movably disposed at the bottom of the hard drive housing, and further includes a pressing and pulling mechanism movably disposed on both sides inside the hard drive housing, a first self-locking mechanism disposed at the bottom of the pressing and pulling mechanism, and a second self-locking mechanism disposed on both sides of the magnetic connector body. Through the pressing and pulling mechanism and the linkage protection mechanism, the magnetic connector body can be automatically retracted into the hard drive housing when disconnection is required, achieving "non-destructive disconnection" of the interface. This avoids the need for users to shake the hard drive housing left and right to pull out the magnetic connector body due to friction between the magnetic force and the components, fundamentally avoiding damage to the port springs and solder joints by lateral forces, greatly improving the mechanical life of the interface, thereby ensuring long-term stability of data transmission and reducing the failure rate and maintenance costs of the device.

The utility model discloses a kind of multi-grade adjustment rotary switches, including base, shell cover, rotating handle and contact assembly, rotating handle rotationally arranged between base and shell cover, and drive rod extending along its radial direction is provided;Contact assembly includes the multiple elastic structure's moving contact bridge of the shaft center of rotating handle as center annularly arranged in installation cavity, and multiple static contact pieces are arranged in base and respectively opposite multiple moving contact bridges, multiple moving contact bridges are connected and respectively located on the movement path of drive rod, drive rod respectively drives multiple moving contact bridges and multiple static contact pieces contact in rotating handle rotating process, by the mechanism of the wheel contact formed by drive rod and multiple moving contact bridges, operation pressure is significantly dispersed, avoid single moving contact bridge sustained stress, greatly reduce the mechanical load and fatigue degree of moving contact bridge, reduce the probability of heating, reduce wear and risk of fusion welding, extend mechanical service life.

The application provides a dynamic walking exoskeleton control method and system based on human-computer complementary optimization, comprising the following steps: defining the step height of the contact point, the normal contact force, constructing the nonlinear complementary problem constraint and model; defining the centroid position tracking of the contact point, the centroid linear velocity tracking, the foot yaw angle alignment, the frame attitude tracking, the base quaternion derivative regularization, the contact force regularization, the joint regularization, the swing height control, the contact control regularization, 9 types of motion task quantization targets, and establishing a multi-task objective function; coupling the static nonlinear complementary problem with the exoskeleton continuous dynamics to construct a coupled system; solving the optimization objective function by using a neural dynamics algorithm to obtain the optimal control input of the exoskeleton-human system; and mapping and converting the control input obtained by optimization into the driving instructions of the robot executor to complete the motion control closed loop. The application can more accurately adapt to the complex motion requirements under the human-robot strongly coupled constraint interaction.

The application relates to the technical field of relays, in particular to a novel magnetic latching relay which comprises a shell, a contact mechanism fixedly installed in the shell, the contact mechanism comprising a first static foot and a second static foot, the first static foot and the second static foot being fixedly installed on one side in the shell, a first static contact being fixedly installed on the first static foot, a second static contact being fixedly installed on the second static foot, a rotating mechanism being rotatably connected to one side in the shell and located between the first static foot and the second static foot, two dynamic contacts being fixedly installed on the rotating mechanism and used for cooperating with the first static contact and the second static contact to realize circuit on-off, a pushing assembly being fixedly installed in the shell and used for driving the rotating mechanism to rotate, and an electromagnetic assembly being fixedly installed in the shell and used for driving the pushing assembly, through rotation of the rotating mechanism, the two dynamic contacts on the rotating mechanism are respectively attached to the first static contact and the second static contact, the single-contact stroke is shortened, and the working efficiency of the device is improved.

The utility model relates to the technical field of mechanical engineering, and discloses a multifunctional elastic steel pad which comprises a nut, the top of the nut is fixedly connected with a screw, the outer portion of the screw is rotationally connected with a nut, the outer portion of the nut is rotationally connected with a buffering assembly, and the buffering assembly comprises a first gasket. The bottom of the first gasket is movably connected to the top of the nut, a first rubber pad is fixedly connected to the outer portion of the first gasket, and a spring is fixedly connected to the outer portion of the first rubber pad. According to the utility model, the rubber pad I and the rubber pad II can effectively absorb vibration generated during mechanical operation by utilizing the high elasticity and damping characteristics of the rubber pad I and the rubber pad II, avoid looseness of the nut and the screw cap due to vibration and elastic deformation of the spring when the spring is pressed, store and release energy, continuously provide buffering force and reduce rigid impact among parts; the first gasket and the second gasket enhance the structural stability, so that the buffering assembly can adapt to various working conditions, and the mechanical service life is prolonged.

This utility model relates to the field of cable technology, and in particular to a highly flexible and bend-resistant special cable, comprising a cable body, which includes, from the inside out, a conductor, an insulation layer, a shielding layer, a filler layer, and a composite sheath layer; the conductor is made of multiple strands of tinned copper wire twisted together, with the diameter of the tinned copper wire being 0.05-0.15mm; the insulation layer is made of modified silicone rubber material, with protrusions on the inner side of the insulation layer that fit into grooves on the outer surface of the conductor; the shielding layer includes an aluminum-plastic composite tape wrapping layer and a tinned copper wire braided layer, with a braiding density of ≥90%; the filler layer is made of highly elastic polyurethane foam material with a foaming density of 80-120kg / m³; the composite sheath layer is a multi-layer co-extruded structure, including, from the inside out, a nylon inner sheath layer, a glass fiber middle sheath layer, and a TPU outer sheath layer; this utility model, through structural design and optimization, exhibits excellent performance in terms of flexibility, bend resistance, anti-interference, wear resistance, and service life, meeting application requirements.

The invention provides a communication terminal structure, which comprises a terminal shell, and is characterized in that a plurality of groups of mutually independent channel units are arranged in the terminal shell; a conduction component and an elastic contact component can be embedded in each group of channel units, the conduction component comprises a fixed part matched with the terminal shell and a front end part extending into the channel units, and the elastic contact component is arranged in the terminal shell in front of the conduction component and partially extends out of the terminal shell; the front end portion of the conductive member is adjustable to achieve mutual electrical connection or mutual electrical separation with the elastic contact member. According to the communication terminal, multi-channel free configuration of the communication terminal under the same structure is realized, and universality, reliability and assembly convenience are considered.

A molded case circuit breaker comprises an operating mechanism, a contact mechanism and an interlocking mechanism, an operating handle drives a moving contact to move through the operating mechanism, the interlocking mechanism comprises an interlocking piece and an interlocking spring, and the interlocking spring is used for driving the interlocking piece to lock the moving contact in a state that the moving contact cannot be in contact with a static contact. In the process that the operating handle moves from the opening position to the closing position, when the operating handle moves to the interlocking position, the operating handle or the operating mechanism drives the interlocking piece to unlock the moving contact, the operating handle is driven by the energy storage spring to move to the opening position and the closing position, and when the operating mechanism is not closed in place, the interlocking piece is driven by the energy storage spring to unlock the moving contact. According to the technical scheme, pilot connection between the moving contact and the static contact can be avoided, an operator can be helped to judge the working state of a product, misjudgment is avoided, potential safety hazards are reduced, when the operating handle moves to the action position, the closing force of the energy storage spring is larger, the moving contact can be driven to make contact with the static contact rapidly, and the rapid closing function is achieved.

The application discloses a spring operating mechanism and method for a circuit breaker, and belongs to the technical field of circuit breakers, which comprises a clamp plate type frame, an energy storage to position clutch, a closing holding and a manual closing soft interlocking device, the clamp plate type frame is fixedly connected by opposite first and second side plates through a supporting piece; an energy storage motor of an energy storage transmission device is connected with an energy storage shaft through a transmission assembly, a cam is arranged on the shaft, and an energy storage holding buckle is arranged; the energy storage to position clutch device is a one-way clutch assembly connecting the transmission assembly and the energy storage shaft; the closing holding device comprises a hinged opening release assembly, a reset elastic piece and a linked output shaft; the manual closing soft interlocking device comprises a sliding manual operating assembly, a closing trigger piece and an interlocking assembly, and is matched with the energy storage holding buckle; the problems of the existing spring operating mechanism for the circuit breaker, such as the reliability, structure, cost or precision related defects of the energy storage clutch device, the manual closing mechanical interlocking, the closing holding structure and the modular mechanism cooperation are solved.

A kind of pull wire clamp mechanism with taper lead-in and chain includes left end gear set mounting seat, right end gear set mounting seat, chain device and slidable pull wire clamp device;Left end gear set is installed in left end gear set mounting seat;Right end gear set is installed in right end gear set mounting seat;Driven chain is installed on left end gear set and right end gear set;Chain drive motor includes rotating shaft;Driving gear is installed fixed on rotating shaft;Driving chain is installed on left end gear set and driving gear;Sliding base plate is installed on slide bar;Driven chain is installed fixed to sliding base plate;Wire clamping fixed block is installed fixed on sliding base plate;Taper wire guide block is installed fixed on wire clamping fixed block, wire hole is opened in taper wire guide block, and inclined wire face is opened around wire hole.The utility model is simple to operate, accurate and rapid threading, improves work efficiency, and long service life of dirty-resistant machine can adapt to all application occasions.

The utility model discloses a good stability power grid primary and secondary fusion equipment special magnetic latching relay. Adopted technical scheme includes: base, contact system and electromagnetic system of being established in the base, the electromagnetic system includes framework, the iron core of being established in the framework, riveting armature and magnetic steel assembly of being established between the iron core two ends of the iron core, the magnetic steel assembly includes iron sheet support, two iron sheets of integrally forming in the iron sheet support and with the iron sheet support connection push piece, the left and right ends integrally formed with first pivot of iron sheet support, the lower end integrally formed with push rod, the second pivot of push rod lower end integrally formed, the rear end of push piece is equipped with the axle slot of being connected with second pivot, and the front end is equipped with the stopper, one end of axle slot is equipped with closed shaft sleeve, and the other end is equipped with open shaft sleeve, and the end of stopper is equipped with the clamping groove.

The application discloses airtight pneumatic switch, which comprises a switch integral part, a shell covering the switch integral part, and a first sealing washer arranged between the switch integral part and the shell. The switch integral part comprises a pneumatic assembly, a push rod assembly arranged on the pneumatic assembly, and two groups of combined contacts with the same specification. The switch has long service life, high temperature resistance, convenient assembly and debugging, small size, light weight, and good circuit connection performance. The application further discloses a use method of the airtight pneumatic switch.

The protection structure comprises an inflation valve, the vacuum arc-extinguishing chamber comprises an arc-extinguishing chamber shell, a movable end cover plate, a movable conducting rod, the corrugated pipe and a conducting seat, the conducting seat comprises a medium-voltage cavity and an inflation connector, the conducting seat is fixed at the outer end of the movable end cover plate, an opening of the medium-voltage cavity faces the movable end cover plate, and the movable end cover plate is fixed on the movable end cover plate. The connection part of the conductive seat and the movable end cover plate comprises a sealing ring; the movable conducting rod penetrates through the medium-voltage cavity and the guide hole of the conducting seat, a conducting ring is arranged in an annular groove in the hole wall of the guide hole, and the inner wall of the conducting ring is in sliding contact with the movable conducting rod; the inflation connector is located on the outer wall of the conductive base and comprises an inflation hole, and the inflation valve is installed on the inflation connector. According to the utility model, the middle-pressure gas is filled into the middle-pressure cavity of the conductive seat, so that the pressure difference inside and outside the arc extinguishing chamber can be reduced. The corrugated pipe is uniform in stress, the mechanical life is prolonged, an additional static corrugated pipe does not need to be added, the structure is simplified, and the machining difficulty and cost are reduced.

This utility model discloses a latching type wire end connector, including a plastic plug with a plug end and a fixed end. The top outer side of the plastic plug is provided with a cantilever latch with a locking block and a pressing part, and also has an anti-touch ridge. The inner side of the anti-touch ridge is provided with a reinforcing part, which enhances the strength of the anti-touch ridge. The thickness of the upper part of the anti-touch ridge can be reduced, but it can still play an anti-touch role, thereby expanding the pressing and accommodating space and improving the user's comfort when unlocking. When the pressing part is pressed and the locking block is unlocked, the reinforcing part can provide feedback at the end of the press, avoiding plastic deformation or breakage of the latch due to excessive pressure, which significantly improves the mechanical life of the connector. At the same time, the rectangular hole and lug provided at the fixed end form a strong fixing effect with the cured injection molding material, so that the bonding strength between the plastic end cap and the plastic plug is much higher than that of traditional adhesive or snap-fit ​​methods, and can withstand more frequent cable bending and pulling.

The utility model discloses a globoidal cam grinding numerical control rotary table which comprises a rotary table mechanism, a driving mechanism and a lubricating mechanism, and the rotary table mechanism comprises a shell, a rotary table movably embedded in the top of the shell and the driving mechanism. The driving mechanism comprises a worm gear connected with the bottom of the rotating disc, a worm meshed with one side of the worm gear and a motor connected between the shell and the worm, and the worm gear is movably connected with the bottom of an inner cavity of the shell. According to the lubricating device, the oil pump is started, then lubricating oil in the box body enters the oil pipe and flows out through the oil dripping holes, the lubricating oil dripping position belongs to the meshing position of the worm gear and the worm so that the worm gear and the worm can be coated with the lubricating oil, and then when the lubricating oil and dregs falling from the worm gear and the worm fall, the lubricating oil and the dregs are attracted by the magnet to prevent the dregs from flowing. And the lubricating effect is improved, and the mechanical service life is prolonged.

The utility model provides a four-station five-axis machining center, belongs to the technical field of numerical control machining equipment, and aims to solve the problem that the machining efficiency of workpieces is affected due to the fact that the existing multiple stations only realize partial overlapping of clamping auxiliary time and machining time. Comprising a machining center body, a workbench body, a station suction cup base, a Z-axis sliding-down part, a machining main shaft part, a machining driving mechanism and a machining dustproof mechanism. The workbench body is slidably connected to the lower portion of the inner side of the machining center body. The station suction cup bases are fixedly connected to the upper portion of the workbench body. The Z-axis sliding part is connected to the upper portion of the interior of the machining center body in a sliding mode. The machining main shaft pieces are rotationally connected to the lower portions of the Z-axis sliding-down pieces correspondingly. The machining driving mechanism is arranged on the inner side of the machining center body. The machining dustproof mechanism is arranged on the outer side of the machining center body, synchronous machining of four stations is achieved, and the machining efficiency of workpieces is improved.

The application relates to the technical field of non-electric variable control or regulation systems, and discloses a kind of exhaust gas aftertreatment flow channel back pressure dynamic regulation method, comprising: obtaining supply source phase reference signal and establishing cycle mapping;Extracting fluid channel pressure signal pulse range change rate to determine feedforward factor;The pressure signal trough interval is determined as the action window;Determine the target regulation instruction based on the reference value determined by the feedback deviation and compensate using the feedforward factor;Drive the regulating mechanism to displace within the action window, so that the response peak is locked in the trough interval, the application locks the regulating action in the low-energy phase, avoids the kinetic energy intervention of fluid pulse on the regulating mechanism, and reduces mechanical wear;Using pulse characteristic feedforward compensation makes the regulation instruction perceive the flow field trend, while smoothing the signal, improves the response speed, and maintains the pressure balance under transient operating conditions.

The utility model relates to a kind of circuit breaker transmission device and circuit breaker system, the device includes operating mechanism;First elbow arm mechanism, first elbow arm mechanism is rotatably connected with operating mechanism, first elbow arm mechanism can be driven by operating mechanism and rotate around first direction;Insulating pull rod, one end of insulating pull rod is rotatably connected with first elbow arm mechanism;Guide mechanism, guide mechanism includes guide seat and with the guide rod assembly being movably arranged in guide seat, one end of guide rod assembly is connected with insulating pull rod;Second elbow arm mechanism, one end of second elbow arm mechanism is rotatably connected with guide rod assembly, the other end is used to be rotatably connected with the compression chamber connecting plate of circuit breaker, second elbow arm mechanism can be driven by guide rod assembly and rotate around second direction.The device can solve the problem that elbow arm mechanism rotating shaft direction is inconsistent, overcome the torsional force impact of large rotational inertia to rotating insulating pull rod, greatly improve the mechanical performance of transmission system, significantly improve the mechanical life of transmission system.

The invention discloses an anti-interference flexible circuit board, method and device of an audio device with a camera shooting function. The flexible circuit board is of an integrated strip-shaped multi-layer circuit structure, and an outer conducting layer is provided with a differential signal line group for transmitting digital videos and a main clock circuit and is covered by an electromagnetic shielding film to form a shielding cavity. In addition, the flexible circuit board is also integrated with an analog audio drive line group and an independent microphone ground wire, the ground wire is physically isolated from the main ground network and is electrically connected only at the terminal part or the bonding pad, and a packaging body is arranged to provide outer layer protection. Through layered wiring and shielding isolation design, common-ground interference of hybrid transmission of high-speed digital signals and analog signals in a narrow and limited space is effectively reduced, and the signal quality is greatly improved.

This application relates to the field of motor control and electrical technology, and in particular to an intelligent control method and system for a high-speed brushless motor for vacuum cleaners. The method is applied to a high-speed brushless motor system, which includes a processor and a frequency-selective damping ring fitted onto the motor stator core. The inner wall or end face of the frequency-selective damping ring has multiple radial slots arranged at preset intervals. The method is executed by the processor and includes: acquiring a torque trend term characterizing the change trend of the motor load torque and an angular acceleration term characterizing the change trend of the motor rotor kinetic energy; calculating a real-time phase offset based on the torque trend term and the angular acceleration term; identifying the degree to which the real-time phase offset deviates from a preset dynamic threshold to determine whether the motor has entered a surge bud state; and outputting an overmodulation control signal when a surge bud state is detected to drive the motor stator windings to generate an excitation current containing high-frequency harmonic cluster components.

The utility model provides a novel wheel box structure of a stacker, which relates to the technical field of logistics equipment and comprises a driving wheel and a driving wheel shaft, the driving wheel shaft is inserted in the center of the driving wheel in a penetrating manner, the joint of the driving wheel and the driving wheel shaft is in conical surface connection, and square covers are respectively sleeved on two sides of the driving wheel and positioned on the driving wheel shaft. The novel wheel box structure applied to the stacking machine is novel in overall design and simple in structure, and compared with a traditional stacking machine wheel box structure, the novel wheel box structure applied to the stacking machine has the advantages that the overall design is novel, the structure is simple, and the practicability is high. And a spline connection mode between the driving wheel and the driving wheel shaft is replaced by conical surface combination, so that the connection is more stable, and the device is worthy of wide popularization and use.

The utility model relates to a kind of ring structure temperature compensation contact, it includes the insertion hole extending along the axial direction, the insertion hole front end is used to the contact hole side of the insertion needle of suitable end insertion and is equipped with split groove, the split groove extends along the axial direction of insertion hole and is connected with the inside and outside of contact hole, the outer periphery of the contact hole front end is equipped with ring groove, the ring piece of positioning assembly in the ring groove can provide the contact hole with the elastic force of its clamping suitable insertion needle.The insertion hole of the ring structure temperature compensation contact of the utility model is set with split groove on one side, so that it has radial deformation ability, it can be opened when suitable insertion needle is inserted, and the ring piece is provided outside the insertion hole, the radial holding force is provided for the insertion hole by the ring piece, so as to ensure the reliable contact of insertion needle and insertion hole.

The application provides a lever transmission type moment increasing driving motor with a flywheel for stabilizing moment, and relates to the technical field of permanent magnet synchronous motors. The lever transmission type moment increasing driving motor with a flywheel for stabilizing moment comprises a base, an inner stator fixed on the base, a coil structure arranged in a winding slot of the inner stator, an outer rotor rotatably sleeved on the outer side of the inner stator, a central output shaft and a flywheel, and further comprises a lever transmission mechanism, wherein the lever transmission mechanism comprises an inner core, an outer rotor right side plate and a transmission protruding column, the inner core is coaxially fixed at the central position of the inner stator, and the inner hole of the inner core supports the central output shaft through a bearing. In the application, the outer rotor drives the flywheel to rotate through the transmission protruding column, the lever principle that the power arm is greater than the resistance arm is used to realize speed reduction and moment increase, and the rotational inertia of the flywheel is used to suppress the dead point torque fluctuation, so that the stable output of large torque is realized under the premise of compact structure.

This invention discloses a telescopic fitting for sliding support and current diversion of a busbar, belonging to the field of busbar connector technology. It is assembled between a busbar and an equipment terminal and includes a busbar clamp, an equipment clamp, a support rod assembly, a steering block, and telescopic wires. The busbar clamp is fixedly installed at the end of the busbar, and the equipment clamp is fixedly installed at the end of the equipment terminal. The two ends of multiple telescopic wires are respectively fixedly installed on the busbar clamp and the equipment clamp. The outer end of the equipment clamp is rotatably assembled to one end of the steering block. The support rod assembly is movable and assembled inside the busbar. This invention, through the design of separating mechanical support and electrical current diversion, avoids the phenomenon of excessive current in the support rod causing overheating under special environments due to skin effect, electromagnetic interference, and other factors. Simultaneously, all metal parts of the telescopic fitting can be connected to the charged body, avoiding floating potential and preventing floating discharge under high voltage.

The invention discloses a thermoelectric refrigerating unit with a mixed single-stage and multi-stage structure and a manufacturing method of the thermoelectric refrigerating unit, relates to the technical field of thermoelectric refrigerating units, and aims to solve the problem that an existing thermoelectric refrigerating unit cannot process uneven heat flux density. The thermoelectric refrigerating unit comprises substrates arranged on the two sides and a mixed refrigerating structure arranged between the substrates on the two sides, the mixed refrigerating structure comprises a multi-stage refrigerating area arranged in the center area and a single-stage refrigerating area around the multi-stage refrigerating area, and the multi-stage refrigerating area comprises a plurality of layers of multi-stage structure semiconductor particles. The single-stage refrigeration area comprises single-stage structure semiconductor particles, and the height of the single-stage structure semiconductor particles is flush with the height of the multi-stage refrigeration area; the invention further discloses a corresponding manufacturing method. According to the invention, high-intensity cooling of local hot spots and uniform temperature control of the whole base surface can be realized on the same device.