11results about How to "Small selection" patented technology

The utility model discloses a safety protection device for a laser head, which relates to the technical field of welding equipment and comprises a protective cover I, an annular air knife, a protective cover II, a hold-down device, a spring floating mechanism and a sealing cover, the upper end of the first protective cover is fixedly connected with the laser fusion welding head, the annular air knife is fixedly connected between the first protective cover and the second protective cover and is sealed, the lower end of the second protective cover extends to the inner side of the sealing cover, and a dust removal pipeline communicated with the second protective cover is further arranged on the side wall of the second protective cover. The pressing device is fixed to the outer side of the second protective cover, and the sealing cover and the pressing device are in floating connection through a spring floating mechanism to form a movable sealing cavity, so that the sealing cover and the workpiece are sealed in real time. According to the laser protection room, the floatable sealing cover is arranged, the lower end of the second protection cover extends to the inner side of the sealing cover, the first protection cover, the sealing cover and the second protection cover jointly form a completely-sealed working environment, laser leakage is avoided, and the design and manufacturing cost of the laser protection room can be greatly reduced.

The utility model discloses an energy-saving and consumption-reducing system for a biomass carbonization furnace coupling incineration system, which comprises a carbonization furnace, a combustion chamber, a waste heat boiler, a bag-type dust collector, a tail gas fan and a chimney, a material forms a carbonized material and combustible gas through a high-temperature environment in the carbonization furnace, and the combustible gas is combusted through the combustion chamber to generate high-temperature flue gas; and then the gas is discharged after being treated by a waste heat boiler, a bag-type dust collector, a tail gas fan and a chimney. An outlet pipeline of the bag-type dust collector is connected with two branch pipes, one branch pipe is sequentially connected with the carbonization furnace through a second buffer tank, a first internal circulation fan, a first flue gas preheater and a second flue gas preheater by pipelines to form a first-stage flue gas internal circulation system, and the other branch pipe is sequentially connected with the combustion chamber through a first buffer tank and a second internal circulation fan by pipelines to form a second-stage flue gas internal circulation system. According to the flue gas double-internal-circulation structure, the running temperature, low-oxygen-content running and low-flue-gas-amount running in the carbonization furnace are guaranteed, and it is guaranteed that the biomass carbonization furnace coupling incineration system can run safely and stably for a long time.

The utility model relates to a kind of injection pump hardware limit protection circuit, including, power supply control part, the power supply control part includes P type MOS tube Q7, N type triode Q6, resistance R7 and resistance R6, the both ends of resistance R6 are respectively with the grid and source electrode of P type MOS tube Q7 connection, the grid of P type MOS tube Q7 connects the collector of N type triode Q6, the emitter of N type triode Q6 is grounded, resistance R7 one end is connected with the base of N type triode Q6;Direction control part, the direction control part includes positive limit branch, reverse limit branch and P type triode Q10, the positive limit branch and reverse limit branch one end is connected with the base of N type triode Q6, the positive limit branch and reverse limit branch other end is connected with P type triode Q10;The utility model relies on circuit structure to judge to execute operating state with application condition, adopt small signal control large current, device is more small and exquisite, meet the space limit requirement of product, device selection is also relatively cheap.

The utility model discloses a kind of wire high collection degree racks, belong to electrical engineering technical field, including the rack main body for placing wire, one end of rack main body is equipped with material receiving slope, rack main body and the bottom of material receiving slope are symmetrically equipped with supporting leg, converging platform is installed on rack main body, converging platform and material receiving slope butt joint connection, one side of rack main body is equipped with converging cylinder, the output end of converging cylinder is equipped with converging baffle, the other side of rack main body in supporting leg inner side is equipped with material blocking cylinder, the output end of material blocking cylinder is equipped with piston rod, the outer end of piston rod is swing and is equipped with material blocking baffle, the power of the present application is adopted cylinder to reduce overall weight, save motor selection, reduce design difficulty, realize one drive multiple linkage, realize low energy consumption, more stable function, connect multiple material blocking mechanisms, better synchronism when equipment runs, increase equipment stability.

The invention relates to the field of flue gas purification and discloses a flue gas coupling regeneration system and a low-temperature flue gas adsorption system. The regeneration system comprises a regeneration tower, a heat exchanger, a heating device and a heating outer pipe. High-temperature flue gas input into the heat exchanger from the economizer exchanges heat with a heat exchange medium on the cold side of the heat exchanger so as to heat the heat exchange medium and then input the heated heat exchange medium into the first medium flow channel to preheat an adsorbent in the preheating section, the heating outer pipe communicates with the second medium flow channel to form a heating loop, and the temperature rising device is arranged on the heating outer pipe and used for heating the heat exchange medium in the heating loop. According to the flue gas coupling regeneration system, heat of high-temperature flue gas before cooling is used for preheating the adsorbent, a heating device does not need to be arranged, and heating energy consumption is reduced. And the cooling section directly utilizes the adsorbed low-temperature flue gas for cooling, so that the stability is better. The heat exchange medium of the heating section is not used for heating of the preheating section any more, and energy consumption can be reduced.

The present invention provides a method for recovering cobalt precipitate from the liquid after iron and aluminum removal from copper-cobalt ore. The method comprises: step S1, mixing the liquid after iron and aluminum removal with a first alkaline solution for precipitation reaction, and concentrating and separating the obtained precipitation slurry to obtain a cobalt precipitation overflow and a cobalt precipitation underflow; step S2, dividing the underflow into two parts, adding a second alkaline solution to the first underflow for activation and conversion, returning the obtained activated ore slurry to step S1 to replace the first alkaline solution, and filtering and washing the second underflow; step S3, mixing the first cobalt precipitation overflow with the first alkaline solution, and performing precipitation reaction, concentrating and separating the precipitation slurry obtained by the precipitation reaction to obtain a cobalt precipitation underflow; step S4, dividing the cobalt precipitation underflow into two parts, adding a third alkaline solution to the first underflow for activation and conversion, returning the obtained activated ore slurry to step S3 to replace the first alkaline solution, and filtering and washing the second underflow. The product has large particle size and low water content.

The application discloses a kind of full-automatic carrying robot of potted flower flowerpot, including walking and moving mechanism, flowerpot clamping mechanism, sensing and positioning system, navigation system and flowerpot placing system;Walking and moving mechanism is used to drive robot to move and adapt to topography fluctuation;Flowerpot clamping mechanism includes mechanical arm and clamping device, for performing the grabbing, lifting and releasing operation to flowerpot;Sensing and positioning system includes camera and laser radar, for identifying and positioning target flowerpot;Flowerpot placing system is electrically connected with walking and moving mechanism, flowerpot clamping mechanism and sensing and positioning system respectively, for controlling walking and moving mechanism and flowerpot clamping mechanism according to the information of sensing and positioning system, complete the autonomous grabbing and placing of flowerpot;Navigation system combines boundary line identification to carry out path planning and decision-making, realize the autonomous navigation of robot.The application realizes the full autonomous identification, grabbing, transport and placing of potted flower flowerpot by multi-sensor fusion and visual navigation technology.

The utility model discloses a kind of radio frequency transceiving architecture and navigation equipment, it is related to radio frequency communication technical field, including array antenna module, radio frequency front-end Sip chip, transceiver chip and anti-interference baseband;Array antenna module is used to receive satellite navigation signal;Radio frequency front-end Sip chip integration finite amplifier, low-noise amplifier and acoustic surface filter, for processing satellite navigation signal to obtain pre-processing radio frequency signal;Transceiver chip integration has down-conversion module and up-conversion module;Down-conversion module converts pre-processing radio frequency signal into intermediate frequency signal;Anti-interference baseband is output to up-conversion module after intermediate frequency signal is handled by anti-interference algorithm;Up-conversion module converts intermediate frequency signal into radio frequency navigation signal and is output to navigation receiver.This scheme can solve the technical problems of numerous component models, high equipment cost, not conducive to miniaturization and light weight, high power consumption of existing navigation anti-interference equipment transceiving architecture.

The utility model relates to the technical field of liquid storage devices, in particular to a liquid storage device capable of heating a certain volume of liquid, which comprises an upper cover, a middle layer and a bottom. The upper cover and the bottom are configured to be in completely detachable connection, the upper cover is provided with at least part of a platform, the middle layer is provided with a retainer and a sealing element, the retainer and part of the sealing element are configured to be connected and sealed with the bottom, part of the sealing element is configured to be in contact and sealed with the platform of the upper cover, and the retainer, the part of the sealing element and the platform jointly form a cavity capable of containing a certain volume of liquid. The bottom is provided with a heating piece used for conducting heat.

The invention discloses a fully-sealed electromagnetic brake for offshore wind power generation, relates to the technical field of electromagnetic brakes, and aims to solve the technical problem that a rotor assembly of the electromagnetic brake cannot automatically reset when an existing motor is vertically mounted. In the offshore wind power generation fully-sealed electromagnetic brake, a coil framework is assembled in a stator shell, and an electromagnetic wire is wound on the coil framework; the stator shell is provided with a spring hole, a compression spring is embedded in the spring hole, the other end of the compression spring is in contact with one side of the armature, a hollow pin penetrates through the armature, and the hollow pin is connected with the stator shell; the two friction plates are bonded to the two sides of the cast-aluminum rotor respectively, the cast-aluminum rotor is connected with the spline housing through a spline, and the spline housing is installed on the motor shaft; the other two sides of the two friction plates make contact with the armature and one side of the flange plate correspondingly, and a U-shaped groove is formed in the surface of the side, close to the friction plates, of the flange plate. An outer spigot is formed in the other side of the flange plate, an annular groove is formed in the outer spigot, and a second O-shaped ring is contained in the annular groove.

The invention relates to a cycloidal-pin wheel planetary transmission device capable of improving torque density and machine equipment. The cycloidal-pin wheel planetary transmission device comprises a machine shell, a roller pin, a first bearing, a second bearing, a first supporting disc, a second supporting disc, a middle supporting disc, an input shaft, a cycloidal wheel and a force transmission column. The first supporting disc comprises a first disc body and a first boss, and the first disc body is provided with a first supporting hole and a first center hole; the second supporting disc comprises a second disc body and a second boss, and the second disc body is provided with a second supporting hole and a second center hole; the middle supporting disc is provided with a third supporting hole, and the first boss and the second boss abut against the middle supporting disc. The two ends of the force transmission column are supported in the first bearing hole and the second bearing hole respectively, the two ends of the force transmission column are supported in the third bearing hole, and the first bearing disc, the second bearing disc and the middle bearing disc jointly support the force transmission column. According to the cycloidal-pin wheel planetary transmission device, the torque density can be improved, and then miniaturization of the transmission device is achieved.