21results about How to "Guaranteed constancy" patented technology

The invention discloses a method for improving the compactness of square steel for deep drawing, which adopts tundish induction heating and tundish temperature control within a reasonable range to ensure that the pulling speed is kept constant during casting and continuous casting at a lower degree of superheat, and adopts a continuous casting heavy pressure technology to improve the center porosity and shrinkage cavity of a casting blank; a BD cogging mill is adopted for large rolling reduction rolling, and the maximum single-pass rolling reduction is 100 mm; and isothermal operation is carried out in front of the fourth continuous rolling mill, only temperature measurement is needed, and the method is simple and easy to implement. According to the 154 mm deep drawing square steel produced through the technical scheme, the center porosity is smaller than or equal to 0.5 grade, the general porosity is 0 grade, the ingot segregation is 0 grade, and the residual shrinkage cavity is 0 grade, that is, no ingot segregation and residual shrinkage cavity exist, and ultrasonic flaw detection reaches A grade or above; and the high compactness requirement of the steel for deep drawing is met.

The invention discloses a constant-current reclaiming control method and system for a circular coal yard stacker-reclaimer in a coal yard partition, and relates to the technical field of constant-current reclaiming control. The constant-current reclaiming control method comprises the steps that data in a circular coal yard are collected, and data preprocessing is carried out; the method comprises the following steps: dividing a circular coal yard into three different stockpiling areas at intervals of 120 degrees by using an encoder and positioning equipment; each divided material stacking area is coded, and position calibration is conducted through an encoder installed on the material stacking and taking machine; according to the preprocessed data and the position calibration information, the operation parameters of the material taking machine are adjusted to adapt to the physical characteristics of the coal pile; and the current feedback data of the reclaimer is monitored and analyzed by using the information of the stacking area, the operation parameters are further adjusted in real time, and the flow is constant in the reclaiming process under the conditions of different areas and different coal types. The operation precision and efficiency of the circular coal yard stacker-reclaimer are improved, adaptive management of physical characteristics of coal piles is achieved, and flow constancy in the reclaiming process is ensured.

According to the optical fiber laser constant-current driving circuit and the optical fiber laser, through the combined design of the front-stage BUCK voltage reduction module and the rear-stage linear constant-current control module, the working efficiency of a driving power supply can be effectively improved, and ripples in output current can be remarkably reduced. The preceding stage BUCK voltage reduction module realizes efficient voltage reduction through switch control, ensures voltage stability, and reduces energy loss at the same time. And the backward-stage linear constant-current control module keeps the constancy of the current by accurately adjusting the output current, so that the current ripple is further reduced, and the high requirement of the fiber laser on constant-current driving is met. The design ensures that the circuit outputs stable and low-ripple constant current while efficiently converting voltage, and the performance and reliability of the fiber laser driving power supply are greatly improved.

The reinforcing steel bar tensile strength detection device comprises a first clamping part and a second clamping part which are arranged on two sides of a reinforcing steel bar, the first clamping part is arranged on the fixing support, and the second clamping part is arranged on the force application stretcher. The force application stretcher comprises a force application piston cylinder, a force application piston rod extends out of the force application piston cylinder, and the second clamping part is arranged on the force application piston rod. The reinforcing steel bar is clamped between the first clamping part and the second clamping part which are arranged in a matched mode, then the reinforcing steel bar is stretched through the force application stretcher, the force applied by stretching and the deformation or change condition are recorded, and operation is very easy and convenient.

The utility model discloses a constant temperature and humidity device for laboratory breeding, which comprises a water tank, a box body is arranged above the water tank, a heating groove is arranged above the box body, a partition plate is arranged on one side in the box body, and a plurality of support plates which are arranged at equal intervals are arranged on one side, close to the box body, of the partition plate. A seedling raising plate is arranged between the two supporting plates located on the same horizontal plane, a seedling raising groove is formed in the middle of the upper end of the seedling raising plate, a humidity sensor is arranged on the side wall of one side in the seedling raising groove, a plurality of atomizing nozzles arranged in a matrix mode are arranged below a water spraying disc, and an air inlet is formed in the upper end of a heating groove. A fan is arranged below the air inlet of the heating tank, and an electric heating tube is arranged below the fan of the heating tank. The constant temperature and humidity device is simple in structure and high in intelligent degree, the temperature and humidity in the device are convenient to adjust, and constancy of the temperature and humidity in the seed breeding process is effectively guaranteed.

The utility model provides a kind of coating feeding equipment, comprising: first feeding system, for adding high viscosity coating;Second feeding system, for adding low viscosity coating;And the output end of the first feeding system and the output end of the second feeding system are respectively communicated with mixed output port;Wherein, the first feeding system includes the first material bucket for containing high viscosity coating, the first heating device for heating the first material bucket and the first output device for outputting the high viscosity coating from the first material bucket. The feeding process of high, low viscosity two materials can be effectively coordinated, and the output flow of two sets of feeding systems can be stably matched, so as to ensure the accuracy and constancy of the final mixed material ratio.

The utility model relates to the technical field of oxygen supply devices, and particularly discloses a constant-temperature oxygen supply device which comprises a shell, an oxygen generator is placed in the shell, an oxygen supply machine is fixedly connected to the top of the oxygen generator, a connecting pipe is fixed to the output end of the oxygen supply machine, a heating pipe can be assembled and connected to the lower portion of the connecting pipe, and the heating pipe is connected to the lower portion of the connecting pipe. Heating rods which are arranged in a staggered and spaced mode are fixed in the heating pipe, a heating ring is fixed to the position, located above the heating pipe, in the connecting pipe, a first electromagnetic valve is fixed to the position, located above the heating ring, of the connecting pipe, a valve is fixed to the position, located below the heating ring, of the connecting pipe, and one side of the connecting pipe communicates with a U-shaped heat preservation pipe; the input end of the U-shaped heat preservation pipe is connected to the lower portion of the valve, and the output end of the U-shaped heat preservation pipe is connected to the upper portion of the first electromagnetic valve. According to the utility model, the temperature difference between the initial stage and the later stage of oxygen supply can be kept within a certain range, and the use comfort of a patient is improved.

The invention discloses composite liquid metal with low surface tension and a preparation method, and the composite liquid metal with low surface tension comprises a liquid metal component and an organic silicon treating agent. The treating agent for changing the surface tension is mixed and added into the liquid metal, the surface tension of the liquid metal can be effectively reduced, the prepared composite liquid metal has good blade coating performance, blade coating can be conducted on the smooth metal surface through a simple scraper and a screen printing plate, and the operation efficiency during application is improved.

The utility model provides a steel wire conveying mechanism and a brush making machine, and the steel wire conveying mechanism comprises a mounting plate which extends along the vertical direction and is mounted on a mounting reference; the steel wire clamping assembly is provided with a first steel wire clamping part and a second steel wire clamping part; the first steel wire clamping part and the second steel wire clamping part are both used for clamping a steel wire; the steel wire bending assembly is arranged on the mounting plate, and the steel wire bending assembly and the steel wire clamping assembly are arranged in a spaced mode in the extending direction of the mounting plate; the motor driving assembly is arranged on the mounting plate, the motor driving assembly is arranged on one side of the steel wire clamping assembly, the motor driving assembly is used for driving the second steel wire clamping part to move so as to drive the steel wire to move, the steel wire conveying speed can be controlled by adjusting the rotating speed, and intermittent pause of steel wire conveying through an air cylinder is avoided; and the steel wire conveying time is shortened, so that the brush manufacturing efficiency is improved.

The application discloses a retired power battery pack disassembling industrial robot operation device and method thereof, and belongs to the technical field of new energy automobile battery recycling, and comprises the following steps: S1, an industrial robot, a Z-direction flexible floating connection mechanism and an air floating ultrasonic composite cutter head assembly are arranged, wherein the Z-direction flexible floating connection mechanism is located below a terminal flange interface of the industrial robot; the air floating ultrasonic composite cutter head assembly and the Z-direction flexible floating connection mechanism are arranged, and a physical self-adaptive system based on fluid statics is constructed; when the cutter head driven by the industrial robot encounters a battery bump, the suspension gap is compressed, the flow resistance effect of airflow in the narrow gap causes the static pressure in the air film to rise exponentially, the aerodynamic repulsive force generated in the instant directly breaks the mechanical balance model, overcomes the pre-tightening force set by the Z-direction flexible floating connection mechanism, and drives the cutter head assembly to physically give way along the Z-axis direction within milliseconds.

The utility model relates to the technical field of selective laser melting metal 3D printing, in particular to a substrate and powder bed constant-temperature heating system based on SLM, which comprises a printing forming chamber, a liftable substrate assembly arranged in the printing forming chamber, a first heating pipeline arranged in the printing forming chamber, a second heating pipeline arranged in the substrate assembly, and a third heating pipeline arranged in the second heating pipeline. The constant-temperature heating system further comprises a heating circulation assembly and a temperature control system, the temperature control system is electrically connected with the heating circulation assembly, and the heating circulation assembly is communicated with the first heating pipeline and the second heating pipeline and used for providing constant-temperature heating hot water for the first heating pipeline and the second heating pipeline. And the substrate and the powder bed are heated around the forming chamber, so that rapid and uniform constant-temperature heating is realized.

The utility model discloses a high-efficiency and stable water supply control system, which comprises a power supply module, a power distribution module, an indicator light module and a water supply control module, the output end of the power supply module is connected with the power distribution module and the water supply control module, and the output end of the power distribution module is connected with the indicator light module and an electric control switch module. In the aspect of user life water supply, a one-to-three frequency converter connection mode is adopted, namely, a single frequency converter controls three water pumps, the constancy of water supply pressure is ensured, meanwhile, the operation conditions of the water pumps are observed according to an indicator light module, maintenance or adjustment can be conducted according to the actual conditions, and therefore the water supply stability is ensured.

The invention discloses a cooking robot self-powered system and a control method, the self-powered system comprises a cooking module, the cooking module comprises a hearth, the bottom of the hearth is provided with a combustor, the top of the hearth is provided with a pot, any side of the pot is provided with a stirring assembly, and the stirring assembly is connected with the combustor. The boiler further comprises an oil supply module, a water supply module, a power supply module and a central controller, the oil supply module is connected with the combustor, the hearth comprises a first cavity and a second cavity arranged on the periphery of the first cavity, a circulating water jacket is arranged between the first cavity and the second cavity, the water supply module is connected with the circulating water jacket, and the power supply module is connected with the central controller. The power supply module comprises a thermoelectric power generation set, a rectifier, an inverter and a storage battery. The thermoelectric power generation set is located between the first cavity of the hearth and the circulating water jacket. The control method is based on the self-power-generation system, power generation can be automatically controlled, and the constancy of electric energy output is guaranteed.

This invention discloses a testing device for a gearbox differential in the field of differential testing technology. It includes a fixed fixture, on the top of which a differential is press-fitted with a mounting bracket. The differential also includes an input shaft positioned at the front and output half-shafts positioned on the left and right sides. Limit rings and splines are fixedly fitted onto the outer surfaces of both the output half-shafts and the input shaft. Connectors are fitted to the outer surfaces of the splines. Torque and speed sensors and a test motor are fixedly connected to the output half-shafts and the input shaft respectively via connectors. Test chambers are provided on both the left and right sides of the fixed fixture. This invention utilizes a compressed second spring, in conjunction with a movable plate, to drive a turntable to rotate. Through frictional engagement with a friction arc plate, it simulates the load on a vehicle during travel in a real-world scenario. By using motion to simulate stillness, it effectively simulates the actual load conditions of the differential, improving testing accuracy.

A motor disclosed by the present invention comprises a base, a stator assembly, a rotor assembly and a heat dissipation assembly, the base is internally provided with a first cavity, a second cavity and a ventilation duct, the second cavity and the ventilation duct are both located at the outer side of the first cavity, the first cavity is communicated with the second cavity, and the first cavity and the second cavity are both isolated from the ventilation duct; the stator assembly is installed in the first cavity. The rotor assembly is rotationally connected with the base and is in clearance fit with the stator assembly; the heat dissipation assembly comprises a heat dissipation piece, a first blowing part and a second blowing part, the heat dissipation piece is installed in the ventilation channel, the first blowing part is installed on the machine base, one side of the ventilation channel is communicated with the external environment of the machine base in the first direction, the other side of the ventilation channel is communicated with the first blowing part, and the second blowing part is connected with the rotor assembly and located in the first cavity. The problems that the heat dissipation effect of the motor is poor, and the ventilation and heat dissipation capacity is bottleneck are solved.

The utility model discloses a device for improving the germination rate of cryptomeria japonica seeds and raising seedlings, comprising: a germination box, a light-shielding top cover detachably connected to the top end of the germination box; a heat preservation mechanism, the heat preservation mechanism comprising four groups of heat preservation water tanks, the outer wall of the heat preservation water tank being detachably connected with a heat preservation pad; a seedling bed, the seedling bed comprising a water storage tank fixed to the bottom of the germination box, the top of the water storage tank being fixedly connected with a perforated plate, and the top surface of the perforated plate being paved with a sponge; a humidifying mechanism, the humidifying mechanism being arranged on the bottom surface of the light-shielding top cover, the humidifying mechanism and the heat preservation water tank being fixedly communicated through a connecting pipe, and a water pump being installed on the connecting pipe; a temperature and humidity monitoring mechanism, the temperature and humidity monitoring mechanism being electrically connected with a host computer; a visual monitoring assembly, the visual monitoring assembly being installed in the germination box. The utility model connects the heat preservation mechanism and the humidifying mechanism, uses constant-temperature water heating, and the humidifying mechanism directly extracts the water of the heat preservation water tank for atomization, so as to avoid the influence of water mist on the temperature in the germination box.

The present invention provides an atomizing device, a humidifying air conditioner, a gardening sprayer and a space atomizing device, wherein the atomizing device comprises an atomizing nozzle, wherein the atomizing nozzle is provided with a liquid absorption layer, a liquid separation layer and an atomizer, wherein the liquid absorption layer is used to provide the atomizer with liquid of uniform pressure, wherein the liquid separation layer is provided between the atomizer and the liquid absorption layer, wherein the liquid separation layer is used to stabilize the flow and perform secondary pressure division on the liquid supplied from the liquid absorption layer, wherein the atomizing nozzle is further provided with a liquid inlet, wherein the liquid inlet is connected to an external liquid supply source, and wherein the liquid inlet supplies liquid to the liquid absorption layer. The present invention effectively solves the technical defects in the prior art that the atomizing nozzle has unstable atomization output and the spraying amount of each nozzle is inconsistent when multiple nozzles are provided.

The invention belongs to the technical field of high-precision grinding machining of mandrels of large extrusion granulation units, and discloses a novel involute spline mandrel fan-shaped supporting device and a using method thereof. Locking pressing plates are installed on the two sides of the bottom of the fan-shaped supporting body and located on the sliding rails. The side supporting adjusting device adjusts the telescopic amount of the side supporting column. The lower supporting adjusting device adjusts the telescopic amount of the lower supporting column. The other end of the lower supporting column is connected with a fan-shaped supporting tile body; the fan-shaped supporting tile body is made of nylon; the fan-shaped arc of the fan-shaped supporting tile body is in an interval; one end of the spherical positioning rod is connected with the fan-shaped supporting tile body, and the other end of the spherical positioning rod is clamped in two semicircular grooves in the 10-degree inclined face of the front end of the side supporting column. The problem that high-precision and stable machining supporting cannot be achieved after hobbing of the high-precision involute spline mandrel is solved, the high-precision grinding machining effect is achieved, and the high-precision grinding machining problem of high-precision involute spline parts is comprehensively solved.

The utility model relates to the technical field of dryers, in particular to a fourdrinier dryer with a waste heat recovery function. An air inlet is formed in the top of the dryer, an automatic air valve is installed on the air inlet, a metal radiator is arranged at the upper end of the automatic air valve, a water inlet pipe is installed on one side of the metal radiator and connected with a drain valve through a pipeline, and a water outlet pipe is installed on the other side of the metal radiator and connected with a water tank through a pipeline. A hole is formed in the top of the drying machine and additionally provided with an air inlet, an automatic air valve, a metal heat exchanger and a metal primary filter are sequentially arranged above the air inlet, when the drying machine discharges moisture, the automatic air valve is opened, external cold air passes through the primary filter and then is heated by a metal heat radiator and enters the drying machine, and the drying machine discharges moisture. External cold air is heated through heat exchange of condensate water discharged by the original drain valve, and waste heat utilization is achieved.

The embodiment of the invention relates to the technical field of heat exchangers, and particularly discloses a plate heat exchanger which comprises a shell, a heat exchanger and a heat exchanger, the heat exchange unit comprises a heat exchange shell and a heat exchange piece, the heat exchange shell is arranged in the containing cavity, a first heat exchange flow channel extending in the first direction is arranged in the heat exchange shell, and the heat exchange piece is arranged in the first heat exchange flow channel; at least part of the partition plate is movably connected to the interior of the containing cavity of the shell so as to divide the containing cavity into a first sub-cavity and a second sub-cavity, and the second sub-cavity communicates with the first heat exchange runner; and the first driver is connected to the shell, and the power output end of the first driver is in transmission connection with the partition plate. According to the application, the temperature of the first fluid at the outlet of the shell is adjusted in real time, the constancy of the temperature of the first fluid at the outlet of the shell is ensured, the outlet temperature can smoothly reach the standard, and the subsequent normal use of the first fluid is ensured.

The present invention relates to the field of cell culture technology, and in particular to a low-energy laser-assisted cell culture and online monitoring device, comprising a cell culture box, a control center, a light source body and a functional body; wherein the cells to be cultured are placed in the functional body, and the control center controls the light source body to emit LED light and all low-energy lasers to the functional body, and the LED light and all low-energy lasers simultaneously complete the illumination and radiation culture of the cells to be cultured; the functional body photographs the cells to be cultured, and transmits the photographed cell images to the control center. The device provided by the present invention can automatically use low-energy lasers of multiple bands in a cell culture box to irradiate cells and monitor cells online during the entire growth process, and can complete long-term culture, irradiation and observation of cells without manually taking out the cells, avoiding changes in the cell growth environment, thereby facilitating the exploration of optimal culture conditions, improving the success rate of cell culture, and reducing the complexity of experiments.