223results about How to "Effectively cut off" patented technology

The invention discloses a seawater factory-style circulating water fish farming treatment method which comprises, removing the residual bait and excrement from the seawater flowing out of the fish pond through full-automatic conduit pipe filter apparatus, entering foam separate tank from the circulating pump to remove part of the suspended matter and protein, then removing ammonia nitrogen through biological cleaning tank, adjusting water temperature and pH, disinfecting through ultraviolet rays, oxygenation, charging the detected water into the fish pond again, thus completing a circulation.

The invention relates to a phase shift soft switch high frequency isolation photovoltaic grid-connected inverter which comprises a main circuit, a DSP control circuit, an ARM control circuit, and an auxiliary switch power supply circuit. The invention firstly provides a full digitalization control photovoltaic grid-connected generating system, wherein a high frequency full bridge phase shift circuit combined with a high and low frequency full bridge inverter circuit is main circuit structure, and high speed embedded digital signal processor DSPTMS320F2808 is a core. Maximal power point tracking of solar cell panel output power and isolation of photovoltaic direct current and electrical network alternating current are realized, software realizes phase-locked loop control, perfect grid-connected and islanding protection functions are provided, and the whole system can operate safely and reliably.

The purpose of the present invention is to provide a wafer-processing tape that does not result in displacement at the interface between the adhesive layer and the sticky agent layer due to expansion, that has uniform expansion properties suitable for a step for dividing the adhesive layer, and that has excellent pickup performance. In the present invention, the wafer-processing tape is characterized by comprising: a substrate film; a sticky agent layer formed on the substrate film; and an adhesive layer formed on the sticky agent layer; the shear force of the sticky agent layer and the adhesive layer at 25 DEG C being no less than 0.2 N/mm2, and the peeling force between the sticky agent layer and the adhesive layer at a peeling angle of 180 DEG and a peeling speed of 300 mm/min in a standard state compliant with JIS-Z0237 after being irradiated by an energy beam of 200 mJ/cm2 being no greater than 0.3 N/25 mm.

The invention provides a drive control device used for a proportional valve, comprising a drive unit, a drive feedback unit, a logic processing unit and a power supply and protective unit, wherein, the drive unit is used for receiving the input of control signals, converting the control signals into drive signals, and controlling the opening of the proportional valve according to the drive signal; the drive feedback unit is connected with the drive unit, and is used for monitoring the drive signals of the drive unit, and providing a monitoring signal; the logic processing unit is connected with the drive feedback unit, is used for processing the monitoring signal output by the drive feedback unit, and providing a protective signal; and the power supply and protective unit is connected between the logic processing unit and the proportional valve, and is used for executing the protective operation of the proportional valve according to the protective signal output by a logic processing component. The drive control device can enable the proportional valve to have high accuracy and safety.

A cutter for woven belts includes a handle having two ends respectively defined to be a first end and a second end. The handle has a circumferential side provided with a cutting opening located close to the first end, extended in a direction from the second end toward the first end and having an opposite sealed end connected with two guide grooves. A blade deposited in the handle is exposed in the cutting opening. Thus, when a woven belt is being cut by the cutter, the cut-off portion of the woven belt will be guided by the guide grooves to be separated from the original woven belt so that the woven belt cut apart can be prevented from being accumulated at the cutting opening or being hindered by a user's hand, enabling the cutter to effectively cut off woven belts for facilitating sequent work of removing the woven belts from goods.

The invention discloses a safety control device of an electric vehicle. A high-voltage battery control module cuts off a first control end of a high-voltage relay and/or a whole vehicle control module cuts off a second control end of the high-voltage relay through an emergency power-off module to make the high-voltage relay cut off, and thus a high-voltage power supply loop of all components of the whole vehicle is cut off. The invention further discloses a safety control method of the electric vehicle. By means of the safety control method and device of the electric vehicle, the high-voltage electricity of the whole vehicle can be effectively cut off in time when a collision occurs, and thus electric shock of people can be avoided; when a slight collision occurs or no electric leakage risk exists, the dynamic property of the whole vehicle can be maintained, and thus the vehicle can quickly leave a dangerous area; the structure is simplified, and safety and reliability are achieved.

The invention discloses an operation safety control system of a crane; the control system comprises a power supply, a get-off control unit and a get-on control unit; the power supply is connected with a power supply input end of an engine electronic control unit by a first power supply circuit, and is connected with a flameout signal input end and a get-on controller of the engine electronic control unit by a second power supply circuit; and the get-on control unit comprises a scram switch and a scram control device. The scram control device controls the on-off of the first and the second power supply circuits according to a scram gear or a restore gear on which the scram switch is located. Therefore, when an emergency situation happens in the get-on operation process of the crane, an operator can cut off the power supply of the engine ECU (electronic control unit) by using the scram control device, to enable the engine to be flamed-out, thereby effectively and completely cutting off the power system in time, and ensuring the safety of people, apparatuses and surrounding operation environments. On the above basis, the invention further provides an operation safety control method of the crane and the crane having the above control system.

The invention discloses a preparation method for odorless regenerated rubber. The preparation method is characterized in that tread rubber powder, an environment-friendly activator, a vegetable oil softener and water are added in the chemical desulfuration process; the environment-friendly activator is prepared from the following components in parts by weight: 3-3.5 parts of persulfate and 7-6.5 parts of aliphatic acid; the amount of the environment-friendly activator is 0.18%-0.29% of the mass of the tread rubber powder; the vegetable oil softener is prepared from cottonseed oil, colophony, pine tar oil, rap oil, drainage oil and olive oil; the amount of the cottonseed oil, the colophony, the pine tar oil, the rap oil, the drainage oil and the olive oil is 3.6%-4.6%, 0.6%-1%, 1.3%-1.9%, 1%-1.5%, 0.8%-1.4% and 0.7%-1.3% of the mass of the tread rubber powder respectively; the added quantity of water is 17%-20% of the mass of the tread rubber powder. According to the invention, products obtained through the preparation method are odorless without containing benzene compounds, are high in tensile strength, great in elongation and moderate in mooney point, and can reach the national-level standard of regenerated rubber; the products such as shoe soles produced from rubber prepared through the preparation method have no color migration.

The invention discloses a reinforced concrete pile crusher, and mainly relates to the field of building machinery. The reinforced concrete pile crusher comprises a plurality of crushing devices, wherein each crushing device comprises a top steel plate, a bottom steel plate, a device housing welded between the top steel plate and the bottom steel plate, a servo hydraulic cylinder, a slide motor base and a servo motor; the crushing devices are fixed with one another end to end; a device cavity is arranged on the inner part of the device housing; the slide motor bases are in horizontal sliding connection in the device cavity; the output shafts of the servo motors are connected with power rotary shafts; the tail ends of the power rotary shafts get out of the device housing, and are equipped with drill bits; and each crushing device is fixedly arranged at the top end of a big arm of an excavator through a chain, and the corresponding servo hydraulic cylinder works through a hydraulic systemon an excavator. The reinforced concrete pile crusher has the beneficial effects that a reinforced concrete pile can be effectively cut off and cut up, so that reinforcement can be separated from a concrete pile to the greatest extent for recycling the reinforcement.

The invention discloses a steel sheet pile support construction method for building an underground garage open caisson to reduce the construction complexity and improve the construction efficiency during open caisson building and reduce the building expenditure for the open caisson. According to the construction method, open caisson construction is carried out in an area defined by a steel sheet wall, wherein building of a wall of the open caisson is carried out in a manner of segment-by-segment construction from bottom to top. The building method comprises the steps that steel sheet piles are sunk, and the continuous steel sheet pile wall is formed; a certain of earthwork is excavated in the area defined by the steel sheet pile wall, then, a pile block enclosure purlin is erected on the top of the steel sheet pile wall, and horizontal braces are built on the inner side of the pile block enclosure purlin; and then, open caisson building is finished through a method that earthwork is excavated segment by segment, the wall is poured segment by segment and sinking is carried out.

The invention discloses a device for cutting auxiliary roots of wheat, which comprises a shovel handle and is characterized in that the lower side of the shovel handle is connected with a shovel tip, the upper side of the shovel tip is provided with a front cutting edge, and the lower side is provided with a rear cutting edge, and the front cutting edge and the rear cutting edge are vertical to the same plane. The device can effectively cut the partial auxiliary roots between every two wheat lines, has a certain loosening function, little advancing resistance and high working efficiency, needs not to dig, keeps the upper soil layer and the lower soil layer orderly to reduce the dispersion of soil moisture content, and can play the role of removing grass.

The present invention discloses a separation membrane and a preparation method thereof, and a lithium ion battery using the separation membrane. The separation membrane comprises a porous separation membrane substrate and a composite coating coated on at least a surface of the separation membrane substrate, wherein the composite coating comprises a polymer wax coated and modified ultra-fine glass fibers and an aqueous emulsion, and the melting point of the polymer wax for coating the ultra-fine glass fibers is 80-160 DEG C. The preparation method is used for preparing the separation membrane. Compared with the separation membrane in the prior art, the separation membrane of the present invention has advantages of high thermal stability, strong mechanical property, strong liquid absorbent ability, good safety and the like, such that the cycle performance and the safety of the lithium ion battery can be effectively improved.

The invention discloses a sharp blade double-level replaceable trepanning drill for fiber enhanced composite hole making, belongs to the field of machining tools, and relates to a sharp blade double-level replaceable trepanning drill for fiber enhanced composite hole making, wherein the sharp blade double-level replaceable trepanning drill is suitable for high-quality machining of composite holes with the large hole diameter through the single procedure. A drill bit comprises five parts including a sharp blade cutting mechanism, a sharp blade connecting ring, a broaching cutting area, a diameter changing area and a clamping area. The drill bit is provided with a double-level structure, the first level is a trepanning drill body with a sharp blade structure, and the trepanning drill body is fixed to a tool through a positioning locking block and an L-shaped positioning groove and can be rapidly replaced; and the second level is a twisted type structure in which a piece embedding area is formed through coping, a replaceable transition blade is installed in a transition area of the second level and the first level, and a plurality of replaceable broaching blades are arranged in the direction of a spiral groove. The drill bit can effectively cut out fiber through a sharp blade, the machining damage is reduced through the double-level structure, and the machining quality is improved; and the tool durability is improved through the replaceable mechanism and the replaceable blades, and the sharp blade double-level replaceable trepanning drill is suitable for machining large fiber enhanced composite holes.

The invention relates to a straw fixed-length cutting device with a controllable length. The straw fixed-length cutting device is characterized by comprising a machine frame, a power transmission device, a feeding device, a clamping roller squeezing and shearing device, a fixed-length cutting device body, a guide and protection device and a straw collecting device, wherein all the devices are installed on the machine frame, the feeding device is installed at the lower end of one side of the machine frame, the clamping roller squeezing and shearing device is installed at the tail end of the feeding device, the fixed-length cutting device body is installed at the discharging end of the clamping roller squeezing and shearing device, the straw collecting device is installed at the discharging end of the fixed-length cutting device, the guide and protection device is installed at the upper ends of the feeding device, the clamping roller squeezing and shearing device and the fixed-length cutting device body, the power transmission device provides power for the other devices, and the rotation speed of the fixed-length cutting device can be controlled by adjusting the power transmission device so that the cutting length of the straw can be adjusted.

The invention relates to a self-positioning waste PCB board milling cutter handle recovery cutting device and method, which includes a base, a first slide rail and a second slide rail are fixed on the base, and the first slide rail is slidably fitted with a second slide rail. A sliding seat, a clamping device for clamping and rotating the waste milling cutter is installed on the first sliding seat; a cutting device for cutting the bar is installed in sliding fit on the second slide rail; The top of the clamping device is provided with a discharge funnel; the side of the clamping device is equipped with a centering mechanism for positioning and aligning the waste milling cutter; the lower side of the clamping device is provided with a The unloading mechanism for unloading; the bottom end of the clamping device is located at the position of the unloading mechanism and is provided with a collection box. This knife handle recycling and cutting equipment can be used for automatic cutting of PCB board milling cutter handles, and can be automatically positioned to ensure its cutting length, and finally realize its fixed-length cutting.

The invention discloses a novel heat insulation structure for a segmented cabin body and the segmented cabin body with the novel heat insulation structure. The cabin-segment heat insulation structure consists of a cabin-segment inner cabin and a cabin-segment outer cabin, wherein the cabin-segment inner cabin consists of an inner cabin left side plate, an inner cabin base plate, an inner cabin right side plate and an inner cabin top plate, each of which consists of plywoods, inner cabin frameworks, inner cabin inner skins, flameproof hard polyurethane foaming plastic, inner cabin outer skins,asbestos cloth and rivets. By adoption of the novel heat insulation structure, a heat transmission way can be effectively cut off and the heat insulation property and the safety of the cabin body aregreatly improved; furthermore, the manufacturing process is simple; and cost and resources are saved.

The invention discloses a low-cost insulating rubber cable material and a preparation technology thereof. The low-cost insulating rubber cable material consists of the following components in parts by weight: 8-14 parts of chlorinated polyethylene, 15-21 parts of ethylene-octylene copolymer elastomer, 15-31 parts of modified calcination pottery clay, 5-8 parts of 80# paraffin base rubber oil, 0.5-1 part of active magnesium oxide, 4-7 parts of superfine talcum powder, 1-2 parts of active zinc oxide, 0.3-0.6 part of environment-friendly stabilizer, 1-2 parts of microcrystalline wax, 0.5-1 part of titanium dioxide, 0.5-0.8 part of 4,4' bis(alpha, alpha dimethyl benzyl) diphenylamine, 1-2 parts of dicumyl peroxide and 1-1.5 parts of triallyl cyanurate, wherein the mass fraction of the octylene monomer in the ethylene-octylene copolymer elastomer exceeds 20%. By adopting the low-cost insulating rubber cable material and preparation technology thereof disclosed by the invention, the inorganic powder is uniformly added, the technological range is wide, relatively high elongation at break is still kept when the continuous vulcanization temperature is 190-210 DEG C, and the cost is greatly reduced.

To provide a device for cutting an article being stitched by a sewing machine, which can cut from any position on the article being stitched regardless of whether or not stitching is present. A device (20) for cutting an article being stitched by a sewing machine comprises a fixed frame (41) attached to a sewing machine main body (21b), and a mobile frame (42) which is movably attached to the fixed frame (41). A rotary blade (34) is rotatably provided on the mobile frame (42). The fixed frame (41) is provided with a drive means (37) for driving the rotary blade (34) by way of a power transmission part (36), and an operation means (43) for operating the mobile frame (42) in such a way that the rotary blade (34) is moved from a position (P1) of not cutting the article being stitched to a position (P2) of cutting the article being stitched. A throat plate (32) provided on a bed part (22) side where the sewing machine main body (21b) is fixed is provided with a fixed blade (38) which cooperates with the rotary blade (34) in order to cut the article being stitched.

The invention discloses an explosion prevention and fire extinction testing device for a lithium ion battery. The device comprises a base 2 and a protective shell 9, and is improved in a way that a battery 1 is arranged between the base 2 and a cavity of the protective shell 9, and the cathode and the anode 14 of the battery are connected with testing terminals 12 on charging and discharging test lines 3; the base 2 is provided with a temperature controlled switch 4 which comprises a temperature sensor 6 and a signal line 5; the temperature sensor 6 is connected with the lithium ion battery 1. According to the explosion prevention and fire extinction testing device for the lithium ion battery, a high-temperature abnormal phenomenon can be timely sensed, a circuit can be timely, rapidly and effectively broken to reduce the temperature of the battery, and meanwhile, inert gas can be emitted to isolate the battery, so that the lithium ion battery can be prevented from being exploded and burnt due to high temperature.

The present invention relates to a standby power shut-off device for automatically shutting off standby power depending on whether an electronic product power source is on or off, and to a control method therefor. The present invention provides an electronic product which employs the standby power shut-off device and the control method therefor, and thus makes it possible to efficiently shut-off standby power using common types of power socket of the prior art rather than using a power socket with extra functionality added. Also, the present invention maximises convenience to the user since standby power is automatically shut off when the electronic product power source is off, without unplugging from the power source.