318results about How to "Wide range of changes" patented technology

The invention discloses an alternating current induction motor control system based on a self-immunity to interference control. On basis of the prior art, according to ambiguity compensation, a known part, i.e., the ambiguity compensation sc of the rotation speed working characteristics of the alternating current induction motor is input to an expanded state observer, a sum action quantity Omega 3 of a variety of interference of an actual rotation speed Omega of the motor is an estimation of an unknown part instead of an overall rotation speed, thus burdens of the expanded state observer are relieved, meanwhile a variation scope of a parameter adapting object is enlarged, and the estimation precision of the expanded state observer is increased. By the adoption of the control system, better control effects compared with that of the alternating induction motor system based on the traditional self-immunity to interference control are obtained, the robustness and the immunity to interference are stronger, and the dynamic quality is improved.

The invention provides an electroluminescent element driving circuit, a driving method thereof and a display device. The electroluminescent element driving circuit comprises a first switch tube and ischaracterized by further comprising at least two driving circuit units, wherein the driving circuit units are mutually connected in parallel, the driving circuit units are connected with a first electrode of the first switch tube, a grid electrode of the first switch tube is connected with a turn-on control signal, a second electrode of the first switch tube is connected with an anode of an electroluminescent element, and a cathode of the electroluminescent element is connected with a first potential terminal; and the driving circuit units are used for driving the electroluminescent element to emit light according to a write-in data signal. The driving circuit can realize simultaneous and concurrent driving of the at least two driving circuit units for the electroluminescent element, thereby increasing the variation range of driving current of the electroluminescent element, thus increasing the brightness adjustment range of the electroluminescent element, and expanding the application scenario range of an organic electroluminescent display product adopting the driving circuit.

The invention provides a liquid metal-based air-control deformable antenna. The liquid metal-based air-control deformable antenna comprises a flexible runner, liquid metal, an airbag and an air pump, wherein the liquid metal and the airbag are both arranged in the flexible runner; and the air pump is arranged on the exterior of the flexible runner and used for air inflation or air suction for the airbag. By inflating the airbag to expand the airbag, movement of the liquid metal in the flexible runner is pushed to form a specific shape; by inflating different airbags, volumes and shapes are changed, so that changes of the liquid metal antenna position, changes of the antenna diameter, changes of the antenna lengths, and changes of antenna tilted angle can be realized; the diameter and length of the air-control are relatively large in a changeable range, so that a relatively wide frequency band can be provided; and in addition, liquid metal material has mobility, so that cracking of the antenna can be prevented, and self recovery capability is achieved.

A wide-range input direct-current rectification filter circuit comprises an over-current protection circuit, an overvoltage protection circuit, a filter circuit, a voltage reducing circuit, a voltage boosting circuit and an output circuit, wherein an output end of the over-current protection circuit is connected with an input end of the overvoltage protection circuit, an output end of the overvoltage protection circuit is connected with an input end of the filter circuit, an output end of the filter circuit is connected with an input end of the voltage reducing circuit, an output end of the voltage reducing circuit is connected with an input end of the voltage boosting circuit, an input end of the output circuit and a feedback input end of the voltage reducing circuit are connected with an output end of the voltage boosting circuit. The voltage reducing circuit and the voltage boosting circuit are automatically started according to the size of the input voltage, the variance range of the input power source is wide, the self power consumption of the power device is small, the work efficiency is high, the circuit work mode is simple, the perimeter device is less and the reliability is high.

The invention creatively provides a novel base conversion editing system for the first time. The function of a single-base gene editing system is reserved, which is characterized in that the conversion from C / G to T / A of a single base at a specified site is realized; the conversion from A / T to G / C and the conversion from C / G to T / A and from A / T to G / C at the specified site can be also realized. The novel base conversion editing system comprises sgRNA, nuclease for targeted recognition of DNA sequence, cytosine deaminase, adenosine deaminase and an uracil glycosidase inhibitor. The invention also provides a composition or a kit comprising the novel base conversion editing system, and an applications of the composition or the kit in gene editing, cytosine deaminase activity detection, adenosine deaminase activity detection and other aspects. According to the invention, the technical limitation that only single-type base conversion can be carried out in the prior art is broken through, DNA base change in a larger range can be realized, and a base editing tool box is further enriched.

The invention discloses a pitching-in-free collapse-free flexible cable arranging device which comprises a cable storage drum, a second speed reducer and a second direct current servo motor, wherein the cable storage drum, the second speed reducer and the second direct current servo motor are sequentially connected. The pitching-in-free collapse-free flexible cable arranging device is characterized by further comprising a PLC, a first optical-electricity encoder, a first direct current servo motor, a first speed reducer, a cable arranging mechanism and a second optical-electricity encoder, wherein the cable arranging mechanism comprises a traveling mechanism, a one-way one-head cable arranging lead screw and a linear speed diameter measurer. The pitching-in-free collapse-free flexible cable arranging device has the advantages of being large in arranged-cable diameter variation range, high in automatic adjustment capacity, reliable in reversing, free of extrusion, pitching and collapse, safe and the like.

A detection system and method of lithography machine projection lens odd chromatic aberration based on two-stage illumination are disclosed, wherein the invention uses the two-stage illumination mode to replace the conventional illumination model so as to optimize the periodic parameter of the phase-shifting grating as the detection in two-stage illumination mode; the detection mark is used for detecting the wave aberration of the lithography machine projection lens; the detection precision is obviously improved.

The invention belongs to the field of recycling of valuable materials of waste lithium-ion batteries and particularly discloses a method for efficiently cleaning and recycling valuable metal in a waste ternary lithium-ion battery. The method comprises the following steps that (1) the waste ternary LNCM lithium-ion battery is subjected to short-circuit discharging, disassembly, stripping through abinding agent and smashing screening to obtain an electrode active material; the electrode active material is subjected to reduction-acid leaching, and solid-liquid separation is conducted to obtain acarbon material and an acid leachate containing Li+, Ni2+, Co2+, Mn2+, Fe3+, Al3+ and Cu2+; (2) the pH of the acid leachate is regulated and controlled within 3-5, and Fe3+ and Al3+ in the acid leachate are precipitated; then through solid-liquid separation, impurity-removal filtrate with Li+, Ni2+, Co2+ and Mn2+ is obtained; (3) the pH of the impurity-removal filtrate is adjusted to 1-6, then the filtrate is used as an electrolyte and subjected to rotational flow electrolysis, Cu / Co-Ni alloy composite film is collected at a negative electrode, and MnO2 is collected at a positive electrode. According to the method, a rotational flow electrolysis mode is innovatively adopted, and effective components in the leachate is efficiently recycled.

The invention provides a method and a device for separating lithium from a lithium-containing solution. The method comprises the following steps: dividing an electrolytic cell into an anode chamber, an organic phase chamber and a cathode chamber by adopting an ion exchange membrane; and transferring lithium ions in the lithium-containing solution inside the anode chamber to a lithium enrichment solution inside the cathode chamber by virtue of an organic phase in the organic phase chamber under the effect of an external voltage, wherein the organic phase is an organic reagent which can selectively have chemical reaction with the lithium ions in the lithium-containing solution; the device comprises the electrolytic cell; the electrolytic cell is divided into the anode chamber, the organic phase chamber and the cathode chamber by adopting the iron exchange membrane; and the organic phase chamber is positioned between the anode chamber and the cathode chamber. Compared with the prior art which has low separation efficiency on the lithium irons and the other metal irons in the lithium-containing solution, the method and the device for separating the lithium from the lithium-containing solution, provided by the invention, can be used for treating a lithium-containing solution which has a relatively high magnetism to lithium ratio.

The invention discloses a mechanical sealing device for magnetofluid lubricating and an adaptive sealing control method, and belongs to the technical field of sealing. The mechanical seal is characterized by comprising a movable ring and a fixed ring, wherein a micron-level deep spiral groove is formed in one end face of the movable ring, and the fixed ring is matched with the movable ring. Under a working state, magnetofluid is injected between the end faces of the movable ring and the fixed ring through a through hole, which is close to the outer diameter, of the fixed ring; under the action of the spiral groove, the magnetofluid flows to the inner diameter direction from the outer diameter of a sealing end face, and a hydrodynamic effect is generated; pressure on a magnetofluid film is increased, and the two end faces are pushed away, so that lubrication on the fluid on the end faces is realized. An adaptive sealing property control system judges whether the sealing property of the mechanical seal meets the requirement by comparing the pressure of a liquid film with the pressure of a sealed medium; if the rotating speed of the movable ring or the pressure of the sealed medium is changed, the system can adjust the voltage of a magnetic field generator according to a preset strategy to adjust the pressure of the liquid film and correspondingly adjust the input flow of ferrofluid, so that the sealing effect of the mechanical seal is guaranteed.

The invention discloses an electric field electrorheological jet polishing device. The electrorheological jet polishing device comprises a work chamber, a rotary table, a machine tool, a jetting device, a filter, a stirring tank, a cooling device, a boosting device, flow guide pipes and an electrorheological polishing liquid. The machine tool does three-dimensional linear movement; the jetting device is fixed on a horizontal moving shaft driving device and faces the object carrying tabletop of the rotary table; the jetting device and the object carrying table of the rotary table are sealed by the work chamber; the filter is arranged between the work chamber and the stirring tank; the cooling device is arranged on the outer wall of the stirring tank; a boosting system is arranged between the jetting device and the stirring tank; and all parts of a system are connected through the flow guide pipes to form a liquid loop. When the electrorheological jet polishing device is in work, the electrorheological polishing liquid is boosted by the boosting device, input into the electrified jetting device, shaped by the jetting device and subjected to an electrorheological effect to form stable standard straight jets for polishing a workpiece; and waste liquid can be recycled for use after treatment. The electric field electrorheological jet polishing device combines an electrorheological polishing technology and a jet polishing technology and belongs to the domain of optical fine machining.

A magnetic sensor including a first resource (3) for the creation of a magnetic field, oriented along a first axis in the direction of the axis of movement, and a second resource (6) for the creation of a magnetic field, oriented along a second axis in the direction of the axis of movement, opposed to the first direction. The first and second field-creation resources are mounted opposite to each other in order to form, between them, a magnetic measuring gap in which the measuring element that is sensitive to the value of the magnetic flux generated by the first and second field-creation resources is located, with the measuring element or the first and second field-creation resources being linked to the mobile object.

The invention relates to the field of flood discharge buildings and provides an aeration facility with a downward-bent base slab. The aeration facility at least comprises an aerator, vent holes, a base slab downward-bent section and an ogee section and is characterized in that the aerator, the base slab downward-bent section and the ogee section are sequentially arranged to form a whole, and the spliced whole is one part of a base slab; the vent holes are formed on the two downstream sides of the aerator and are communicated with a ventilation shaft and a ventilation corridor or directly communicated with the air; the aerator is combined by a flip bucket and a drop sill; the base slab downward-bent section is one section of arc curve and has a radius of 80-150 meters and a central angle of 6-10 degrees, the upper part of the base slab downward-bent section is connected with the lower part of the aerator, and the lower part of the base slab downward-bent section is connected with the upper part of the ogee section; and the radius value of the ogee section is three-six times of the water depth of the cross section. The aeration facility is not only suitable for spillage buildings with gradual base slopes, but also is suitable for steep base slopes, so that an excellent water flow state can be kept in various depths.

The invention provides an adjustable pressurization system of serial-parallel boilers of big and small turbochargers, comprising a high-pressure stage turbine by-pass pipeline by-pass valve, a high-pressure stage turbine by-pass pipeline, a high-pressure stage turbine, a high-pressure and low-pressure turbine connection pipeline flow rate switching control valve, a high-pressure and low-pressure turbine connection pipeline, a low-pressure stage turbine by-pass pipeline, a low-pressure stage turbine, a steam output pipe system, a main steam turbine, a fume purification device, a high-pressure stage compressor by-pass pipeline by-pass valve, a high-pressure stage compressor by-pass pipeline, a high-pressure stage compressor, a high-pressure and low-pressure compressor connection pipeline flow rate switching control valve, a high-pressure and low-pressure compressor connection pipeline, a low-pressure stage compressor by-pass pipeline, an auxiliary steam turbine, a speed changing mechanism 1, a speed changing mechanism 2, a fuel oil supply system, a boiler water supply mechanism, an air conditioning baffle plate and a low-pressure stage compressor. The variation range of the equivalent weight circulation area of the turbine is wider, thereby the operation matching of a booster set and the boiler is improved and the purpose of optimizing the economy of the boiler is achieved.

The invention relates to the field of manufacturing and design of high-voltage switches and discloses an arc extinguish chamber structure for lifting an arc voltage. The structure comprises a fixed piston and a pull rod moving in an inner hole of the piston; a relative position of an air current channel is designed to realize staged blocking and opening; and simultaneously the structure has an extended moving arc contact surface, so that the variation range of an arc length is enlarged. The structure can increase the amplitude and jump of the arc voltage and fulfills the aim of enhancing the breaking direct current, the volume and the sensitive small-current breaking capacity of a circuit breaker.

The invention discloses a shape memory alloy temperature control current switch, comprising a left rack, a right rack, a guide rod, a slide bar assembly and a porcelain cylinder. The guide rod and the slide bar assembly are located on upper parts of the left rack and the right rack; the porcelain cylinder is located on lower parts of the left rack and the right rack; one side of the guide rod is provided with a brush slid wire; the slide bar assembly comprises a slide bar, a pyriform connecting block, a slide plate and a brush wafer; a biasing spring is arranged between the pyriform connecting block and the left rack; a shape memory alloy spring is arranged between the pyriform connecting block and the right rack; two ends of the porcelain cylinder are respectively fixed to the lower parts of the left rack and the right rack through screws; the porcelain cylinder is wound with a resistance wire. The shape memory alloy temperature control current switch has the characteristics of fast response speed and wide change scope, and can realize a plurality of work conditions.

The invention discloses a gas-containing coal similar material and a preparation method thereof. The similar material is prepared by the preparation method comprising the following steps: selecting coal powder with certain particle size distribution and a sodium humate aqueous solution as raw materials, wherein the coal powder is used as an aggregate and the sodium humate aqueous solution is used as a cementing agent; weighing the coal powder with the certain particle size distribution, water and sodium humate strictly according to proportions, fully stirring uniformly, pouring the well mixed and stirred mixture into a steel mold, and performing pressure molding on the mixture by using a certain pressure under a press machine; and separating the mold, taking out a molded test piece, and drying at normal temperature or in a drying box. A physical mechanical parameter test shows that the volume weight and porosity of the similar material are equivalent to those of raw coals, the adsorptivity of the similar material is very close to that of the raw coals, and the similar material has the advantages of high uniaxial compressive strength, wide mechanical parameter variation range and the like, and also has the advantages of simple material manufacturing process, stable performance, low price, no toxic or side effect and the like.

The invention discloses a piezoelectric power generation device which is formed by a turbine rotor assembly, a piezoelectric ring assembly and a pin roller assembly. The turbine rotor assembly comprises turbine blades and a rotary shaft, wherein the turbine blades rotate to drive the rotary shaft to rotate and are fixed at one end of the rotary shaft. A flexible piezoelectric ring serves as a bearing type outer ring and can deform under the extrusion of a pin roller. When the number of piezoelectric unit is increased continuously, output voltage fluctuation can be decreased, accordingly, stable standard direction current output can be achieved without rectification and filtering, and the problem that the device utilizing centrifugal force to provide impact loses efficacy due to generating overlarge centrifugal force under the effect of high-speed fluid to be tightly attached onto a piezoelectric vibrator is solved.

The invention discloses a compliance adjusting method for a suspension clearance and a control current of an electromagnetic magnetic suspension train. The invention induces a set point adjustor for a working point in a magnetic suspension control unit; the set point adjustor for the working point is internally provided with a control curve function; an input value is calculated according to the control curve function and then is output; the control curve function is designed by a specific method which can realize to reduce the suspension clearance and simultaneously increase the control current when the suspension weight is increased as well as can increase the suspension clearance and simultaneously reduce the control current when the suspension weight is reduced; but a total suspension force can just balance the weight of a suspension body and the suspension clearance can be monotonously changed with the change of the control current; therefore, the method of the invention can be more flexibly compromised on optimizing requirements so as to achieve a better property index.

The invention discloses an adjustable constant flow source driving circuit for an LED (light-emitting diode). The driving circuit comprises an operation amplifier, a transistor and a single chip system, wherein the positive phase input end of the operation amplifier is connected with a reference voltage circuit, the grid electrode of the transistor is coupled with the output end of the operation amplifier through a resistor R4, the LED is connected between the drain electrode of the transistor and the reference voltage circuit, the single chip system is connected with the positive phase input end of the operation amplifier, the source electrode of the transistor is connected with the negative phase input end of the operation amplifier to form a current-series negative feed-back system, a grounded voltage sampling resistor R6 is connected between the source electrode of the transistor and the negative phase input end of the operation amplifier, nodes A are formed between the source electrode of the transistor and a voltage sampling resistor R6, the single chip system is used for adjusting the control voltage of the positive phase input end of the operation amplifier according to the voltage signals acquired from the nodes A, and a grounded divider resistor R5 is connected between the resistor R4 and the grid electrode of the transistor. The driving circuit is controlled by the single chip system, thus current change can be steadily and continuously controlled when the voltage on the positive phase input end of the operation amplifier is adjusted.

The invention provides a fatigue test device for an equal-thickness pavement structure on the basis of MTS. The fatigue test device comprises a subgrade and pavement model and an MTS loading device, and is characterized in that a loading head is fixed at the lower end of an MTS acting head; the lower surface of the loading head is arc-shaped; a rubber layer which is consistent to a tire of an automobile is fixed on the loading head; the MTS acting head applies an acting force with corresponding frequency and load to the subgrade and pavement model; and a sensor is arranged in the subgrade and pavement model. A fatigue test method comprises the following steps of (a) constructing the subgrade and pavement model; (b) hoisting a model case; (c) mounting the MTS acting head; (d) connecting the loading head; (e) setting a loading model; (f) acquiring data; (g) stopping loading; (h) continuing testing; and (i) analyzing data. Compared with special accelerating and loading equipment, the fatigue testing device and the fatigue testing method have the advantages of low cost, short loading period, reasonable test data and low test cost, have obvious beneficial effects, and are convenient to popularize and use.

The invention discloses a fuel cell system output voltage control method. The method includes: acquiring the real-time output voltage of a fuel cell system; inputting an expected voltage value and a measured voltage value into a constant-voltage control operation unit to obtain a negative electrode pressure value and an excess coefficient correction value respectively; using a feed-forward table to find out a corresponding excess coefficient according to the input currents of the fuel cell system; adding the excess coefficient correction value outputted by the constant-voltage control operation unit to the found excess coefficient; inputting the excess coefficient into a converter to obtain mass air flow; inputting two variables including the mass air flow and negative electrode pressure into a multivariable closed-loop control operation unit to obtain air compressor rotating speed and counterbalance valve openness; inputting the air compressor rotating speed and counterbalance valve openness serving as input parameters into the fuel cell system to obtain fuel cell output voltage, mass air flow and negative electrode pressure; feeding fuel cell output parameters to control units toform closed-loop control.

The invention relates to a tab type piezoelectric generation device and method, belonging to the fields of wind power generation or hydraulic power generation. The generation device is composed of a turbine rotor assembly, a rotor tab assembly and a piezoelectric vibrator assembly, wherein the turbine rotor assembly is composed of a circular ring (2), a rotating shaft (5) mounted in the center position of the circular ring (2) and turbine blades (1) mounted at one end of the rotating shaft (5); the rotor tab assembly comprises a rotor (6) mounted at one end of the rotating shaft (5) and multiple tabs (7) fixedly mounted on the rotor (6) along the circumferential direction; the piezoelectric vibrator assembly is composed of multiple piezoelectric vibrators (3) of which one end is fixed at the inner side of the circular ring (2) along the circumferential direction and the other end is free; and an elastic ball (4) is arranged in a cavity formed by two adjacent tabs (7) and the piezoelectric vibrators (3). Under dynamic action of fluid, a turbine drives the tabs (7) to rotate and push the elastic balls (4) so as to impact the piezoelectric vibrators (3), so that the piezoelectric vibrators (3) vibrate, thereby ensuring that the piezoelectric units generate periodic deformation and output charge so as to realize electromechanical energy conversion.

The invention provides an automatic gain control (AGC) device based on a data chain terminal machine. The AGC device comprises a comparator, a variable gain amplifier (VGA) and a peak detector, wherein the selection of the VGA includes the aspects of effective range of control voltage, variable gain range, working frequency range and frequency response of the VGA, and the like; a functional relationship between the gain of the VGA and the control voltage is linear, exponential, logarithmic and the like; the gain of the VGA based on the exponential functional relationship has a relatively wide change range in comparison with that of the VGA based on the linear functional relationship. According to the AGC device, the VGA realizing AGC adopts a method combining exponential and linear gain characteristics, as the VGA with the linear gain characteristics can enable a small signal to be better amplified, the VGA with the exponential gain characteristics can enable a large signal to be in an amplitude limiting region, and then the dynamic range of AGC can be greatly expanded.

The invention discloses a high efficiency piezoelectricity power-generating device. The high efficiency piezoelectricity power-generating device is composed of a turbine rotor component, a spring sliding block component, a bending knocking rod component, and a piezoelectric vibrator component, wherein the turbine rotor component comprises turbine blades, a rotating shaft and a cam; the spring sliding block component comprises an installation cylinder, a pushing rod, an installation cylinder cover, a spring, a sliding block pushing rod and a supporting disc; the bending knocking rod component is composed of a round ring, a knocking rod, a rotating sliding block, a second pin and a supporting frame; and the piezoelectric vibrator component is composed of a piezoelectric material, a first electrode, a second electrode, a first guide wire and a second guide wire. According to the high efficiency piezoelectricity power-generating device, a mechanical cam connection rod mechanism and a sliding block mechanism are adopted, and the accuracy of part knocking each time can be guaranteed, so that more stable and efficient electric energy is generated; and the disadvantage that a device of providing knocking by centrifugal force is tightly adhered onto the piezoelectric vibrator because the centrifugal force is over high under the action of a high speed fluid and then is in failure.

The invention discloses a test method and a test device for high-light intensity and large-scale solar cell illumination linearity, which can accurately test short-circuit current or open circuit voltage illumination linearity when the light intensity variation scale is more than three orders of magnitude and especially under the high light intensity of thousands of solar constants, measurement can be continuously carried out, and light intensity intervals can be freely set. The test device comprises a test light source and a test darkroom, wherein the test light source can generate light pulse; the test darkroom is provided with an orifice window; a light spectrum regulation light filter is arranged behind the orifice window; a beam splitter is aslant arranged; a tested solar cell and a standard solar cell are arranged on the light path of the transmission light of the beam splitter by one group of vertically-arranged neutral attenuation light filters which can be independently movedin or out of the light path; the light path of the reflected light of the beam splitter is provided with a monitoring solar cell through the attenuation light filters; the tested solar cell and the standard solar cell are both fixed on a temperature-control test bench; and the temperature-control test bench is arranged on a guide rail which can cause the temperature-control test bench to move from back and front along the light axis of the light source.

The invention provides a construction method of a novel base conversion editing system. According to the constructed editing system, the function of a single-base gene editing system is reserved, which is characterized in that conversion from C / G to T / A of a single base at a specified site is realized, the conversion from specific sites A / T to G / C, and the conversion from the specific sites C / G toT / A and A / T to G / C can be also realized. The basic group conversion editing system comprises sgRNA, nuclease for targeted recognition of DNA sequence, cytosine deaminase, adenosine deaminase and an uracil glycosidase inhibitor. The invention also provides a product prepared by the method and related application. According to the invention, the technical limitation that only single-type base conversion can be carried out in the prior art is broken through, DNA base change in a larger range can be realized, and a base editing tool box is further enriched.

The invention discloses an air conditioner capable of realizing intelligent dual-mode switching, which can realize intelligent automatic switching between the constant frequency mode and the variable frequency mode. The air conditioner comprises a man-machine interface, a variable frequency compressor, a variable frequency compressor drive module and an intelligent control module. The intelligent control module can intelligently select a variable frequency or constant frequency operation control unit by detecting the temperature different of the operating environment. The technical scheme realizes smooth transition between air-conditioning energy saving and comfortable operating.

The invention discloses a device and a method for disassembling square lithium ion batteries of multiple specifications. The device comprises a control system and an assembly line type disassembling system. The assembly line type disassembling system comprises an intermittent feeding device (1), a first automatic edge cutting device (2), a station conversion device (3), a second automatic edge cutting device (4) and a separating and core taking device (5). The control system controls all parts of the disassembling system to conduct the assembly line type operation. The intermittent feeding device conveys waste lithium ion batteries to the first automatic edge cutting device to complete the edge cutting operation on the two symmetrical sides of the batteries. The station switching device rotates the cut batteries by 90 degrees and conveys the cut batteries to the second automatic edge cutting device to complete the edge cutting operation on the other two sides of the batteries. The separating and core taking device separates and collects upper and lower meter shells and battery cells. The lithium ion battery disassembling device is high in automation degree and high in adaptability.The discharging and safety problems in the lithium ion battery disassembling process are effectively guaranteed in a knife-cutting disassembling mode. The separation of a battery cell and a battery shell is achieved to the maximum extent.

The invention relates to a double-cylinder by-pass type magnetorheological vibration damper. The vibration damper comprises a working cylinder barrel, a liquid storage cylinder barrel, a piston and apiston rod, wherein the piston rod penetrates through a guide ring, and the guide ring is connected with a liquid storage cylinder body together; a magnetorheological effect valve and the whole vibration damper are installed together by the guide ring; a magnetic conductive sleeve connected with the magnetorheological effect valve by a magnetic insulation gasket is sequentially provided with an upper magnetic conductive plate, a magnetic insulation washer, a middle magnetic conductive plate, a magnetic insulation washer and a lower magnetic conductive plate along the inner axial direction; electromagnetic coils are sleeved on the circumferences of the upper magnetic conductive plate, the middle magnetic conductive plate and the lower magnetic conductive plate by magnetic insulation sleeves; the middle parts of the upper magnetic conductive plate and the lower magnetic conductive plate are provided with axial through holes communicated with a liquid discharge hole and a press plate oilduct; and three arc grooves are uniformly distributed at the circumference of the middle magnetic conductive plate. When the piston rod moves, magnetorheological fluid flows among a working cylinder,the magnetorheological effect valve and a liquid storage cylinder. The invention can ensure a larger stroke and be beneficial to dissipating the heat of the electromagnetic coils; and the flow of themagnetorheological fluid in the coils not only can generate large damping force but also ensure portable integration.