10results about How to "Extend mechanical life" patented technology

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 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 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.

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.

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.