37results about How to "Extend the vibration time" patented technology

The invention provides an auxiliary device for hang-dried jujube harvest. The auxiliary device comprises a dragging and carrying support, a primary collecting transporting unit, a sorting unit, a terminal collecting unit and a storage battery. The dragging and carrying support comprises a dragging and carrying base plate, and the primary collecting transporting unit comprises two transporting mechanisms; each transporting mechanism comprises a conveyer belt, a conveyer belt support and a driving motor, and the two conveyer belt supports are hinged to the rear portion of the dragging and carrying base side by side; a first chute located in the lower side of the each conveyer belt is formed in front of each conveyer belt support, and the sorting unit comprises a sorting screen and a miniature vibrating motor; the sorting screen is located below the outlet ends of the two sorting screens, and the miniature vibrating motor is located on the bottom plane of a feeding port of the sorting screen; and the terminal collecting unit comprises a second chute, a third chute and a collecting box. Through the device, automatic collecting and primary sorting of hang-dried jujubes can be achieved, the harvest efficiency of the hang-dried jujubes is improved, and meanwhile the labor intensity of harvest is also relieved.

An improved eccentric type self-locking nut fundamentally solves the problems of looseness and the like under the working conditions of high vibration frequency, high vibration strength, long vibration period and the like in the prior art and comprises a lower body and an upper body, an eccentric boss is arranged on the upper portion of the lower body, and an eccentric hole is formed in the lower portion of the upper body. The eccentric type self-locking nut is technically characterized in that the eccentric boss of the lower body and the eccentric hole of the upper body are connectively fixed in a close fit manner through a thin-walled sleeve with a frustum, the external diameter of the eccentric boss of the lower body is as same as the internal diameter of the thin-walled sleeve with the frustum, the internal diameter of the eccentric hole of the upper body is as same as the external diameter of the thin-walled sleeve with the frustum, axial central lines of the eccentric boss, the eccentric hole and the thin-walled sleeve with the frustum as well as a thread central line of the upper body and a thread central line of the lower body deviate from a same eccentric axis when the eccentric boss, the eccentric hole and the thin-walled sleeve with the frustum are in the initial state, and an axial initial distance is set between the end of the upper body and the end of the lower body. The eccentric type self-locking nut is simple in processing technology, reasonable in bearing after being matched with a connecting bolt, convenient to mount and demount like a common nut and capable of using own looseness moment to achieve a locking function, and has the advantages of capability of remarkably improving nut looseness preventing effect, more benefit to reuse and the like.

The invention discloses a reduction belt capable of improving the deceleration effect and reducing the vibration effect. The reduction belt includes longitudinal decelerating strips and transverse anti-slip strips. The length direction of the longitudinal deceleration strips corresponds to that of the provided roadway; meanwhile, the longitudinal decelerating strips are arranged along the width direction and the length direction of the provided road. The longitudinal decelerating strips are arranged side by side along the width direction of the provided road at the same intervals; the longitudinal decelerating strips are arranged in a staggered pattern along the length direction of the provided road at the same intervals. The longitudinal decelerating strips are arranged side by side with a width of 20-50 cm; the longitudinal decelerating strips are arranged in a staggered pattern with a width of 100-200 cm. The thickness of the transverse anti-slip strips is below that of the longitudinal decelerating strips; the length direction of the transverse anti-slip strips corresponds to the width direction of the provided road. The transverse anti-slip strips are laid at the same intervals on the road provided between the longitudinal deceleration strips.

The invention provides an auxiliary device for hang-dried jujube harvest. The auxiliary device comprises a dragging and carrying support, a primary collecting transporting unit, a sorting unit, a terminal collecting unit and a storage battery. The dragging and carrying support comprises a dragging and carrying base plate, and the primary collecting transporting unit comprises two transporting mechanisms; each transporting mechanism comprises a conveyer belt, a conveyer belt support and a driving motor, and the two conveyer belt supports are hinged to the rear portion of the dragging and carrying base side by side; a first chute located in the lower side of the each conveyer belt is formed in front of each conveyer belt support, and the sorting unit comprises a sorting screen and a miniature vibrating motor; the sorting screen is located below the outlet ends of the two sorting screens, and the miniature vibrating motor is located on the bottom plane of a feeding port of the sorting screen; and the terminal collecting unit comprises a second chute, a third chute and a collecting box. Through the device, automatic collecting and primary sorting of hang-dried jujubes can be achieved, the harvest efficiency of the hang-dried jujubes is improved, and meanwhile the labor intensity of harvest is also relieved.

The invention discloses a storage tank for polymer particles, and relates to the technical field of storage of the polymer particles. The storage tank comprises a tank body and a sampling device, wherein the sampling device comprises a sampling tube vertically and glidingly connected to the bottom of the tank body; a plurality of rotary cutting blades which are spirally arranged are arranged at the top port of the sampling tube, and the rotary cutting blades are arranged at intervals and are tilted toward the center of the sampling tube; the bottom port of the sampling tube is connected with atube plug or a sample storage device; a lifting mechanism is arranged at the bottom of the tank body, and a rotating mechanism is connected on the lifting mechanism and vertically moves under the driving of the lifting mechanism; and the sampling tube is connected on the rotating part of the rotating mechanism and rotates under the driving of the rotating mechanism. The storage tank for the polymer particles solves the technical problem of complicated sampling of the polymer particles stored in the prior art, realizes the quantitative stable sampling, controls the sampling quantity accurately, and cannot affect the environment inside the tank body. The invention further provides a sampling method applying the storage tank for the polymer particles.

The embodiment of the invention relates to the field of motor control, and discloses a linear motor resonance frequency detecting method and device. The linear motor resonance frequency detecting method provided by the embodiment of the invention comprises the steps that S10 multi-frequency noise is added to a drive signal of a motor; S20 the motor is controlled to vibrate under the drive signal with the multi-frequency noise, and the characteristic physical quantity corresponding to each frequency is detected when the motor vibrates; and S30 the frequency corresponding to the detected maximumcharacteristic physical quantity is used as resonance frequency. The embodiment of the invention further discloses a linear motor resonance frequency detecting device. According to the embodiment ofthe invention, the resonance frequency of the linear motor is detected.

The invention discloses a self-powered dynamic weighing device based on a magnetostrictive material and a working method. The invention includes a base, a support plate, a load-bearing column, a guide assembly, a weighing assembly and a self-powered assembly. The weighing assembly is mounted on the base. The guide assembly is installed on the base; a crossbeam capable of sliding up and down is arranged in the guide assembly. The load-bearing column is fixed to the beam, the bottom end is against the weighing assembly, and the top end is fixed to the support plate. One or more energy supply arms are arranged on the beam. The energy supply arm is made of elastic material. The number of self-powered components corresponds to the number of powered arms. The self-powered assembly includes a pusher plate, a transmission assembly, an impeller, and a magnetostrictive energy harvesting module. The magnetostrictive energy harvesting module is installed on the base, including magnetostrictive rods, induction coils and permanent magnets. In the working method of the present invention, the time when each wheel is detected is used to measure and calculate parameters such as the speed of the vehicle, the wheelbase, the number of axles, etc., so as to realize the comprehensive data collection of road vehicles.

The invention provides a self-power supply vibration sensor. The self-power supply vibration sensor comprises a cantilever beam and a self-power supply vibration sensor element on the cantilever beam, wherein the self-power supply vibration sensor element comprises an upper electrode and a lower electrode, a dielectric layer arranged between the upper electrode and the lower electrode, and a plurality of nanostructures with a piezoelectric effect, which are positioned in the dielectric layer, wherein the nanostructures are insulated from the upper electrode and the lower electrode and are almost parallel to the upper electrode or the lower electrode. The invention further provides a self-power supply vibration sensor device and a manufacturing method of the self-power supply vibration sensor.

The invention discloses a vibration energy collector. The collector comprises a piezoelectric cantilever beam and a mass block. The piezoelectric cantilever beam comprises a main beam which is transversely arranged, a plurality of first auxiliary beams which are vertically arranged and a plurality of second auxiliary beams which are vertically arranged. One end of the main beam is a fixed end. The other end of the main beam is a free end. The mass block is fixed to the free end of the main beam. The plurality of first auxiliary beams are arranged with intervals and are fixed to one side of the main beam. The plurality of second auxiliary beams are arranged with intervals and are fixed to the other side of the main beam. By using the vibration energy collector, the main beam of the piezoelectric cantilever beam is provided with the plurality of first auxiliary beams and the plurality of second auxiliary beams; each auxiliary beam possesses a respective resonant frequency and resonant frequency points of the vibration energy collector are increased; and when each auxiliary beam generates vibration, voltage attenuation of two sides of each resonant frequency point is slow so that a bandwidth is increased. Simultaneously, through the auxiliary beams, an electricity production area is correspondingly increased, output electric energy is improved and a problem that a frequency point energy density is low is solved.