1172results about How to "Avoid collision damage" patented technology

The invention relates to a novel air purification and automatic sweeping integrated machine. The integrated machine comprises an air purifier. The air purifier comprises a shell and an electric control device. The integrated machine further comprises an automatic walking sweeping robot used in combination with the air purifier. A containing chamber for containing the automatic walking sweeping robot is formed in the bottom of the shell. A storage battery is arranged on the sweeping robot. A charging socket allowing the sweeping robot to be charged is arranged on the shell. The sweeping robot and the charging socket are connected through a separable electric connector. The electric control device comprises a controlled module arranged on the sweeping robot and a master control module arranged on the air purifier. The master control module and the controlled module are in wireless communication. The novel air purification and automatic sweeping integrated machine has the advantages of being convenient to use and capable of saving energy.

The invention belongs to the field of detection and control technologies of washing machines and provides a roller washing machine and an unbalance detection method and device of the roller washing machine. The method comprises the steps that when a roller operates at a low uniform velocity, the torque of the roller is detected, and the average value of torque ripple is acquired; afterwards, when the roller operates in a constant-acceleration mode, the torque ripple values of the roller are acquired in real time, and whether dynamic unbalance happens on the roller or not is judged according to the average value of torque ripple and the torque ripple values; if yes, the roller is controlled to stop accelerated operation, and whether the frequency of shake scattering operations executed by the roller is larger than a preset frequency value or not is judged; if yes, the roller is controlled to stop operation; if not, the roller is controlled to execute shake scattering operations and then operates at a low velocity, and static unbalance detection is performed on the roller during low-velocity operation of the roller; accordingly, there is no need to adopt sensors for unbalance detection, so that the cost and detection difficulty are lowered; besides, the problem that dynamic unbalance detection is performed during high-velocity operation of the roller, so that mechanical parts are collided and damaged is avoided.

The invention discloses an automatic press-fitting device for a motor end cover and a bearing. The device at least comprises an end cover loading mechanism, a bearing loading mechanism and a bearing press-fitting mechanism. The end cover loading mechanism is used for placing a motor end cover on a circulation board. The bearing loading mechanism is used for placing a bearing on the motor end coverof the circulation board. The bearing press-fitting mechanism is used for realizing the press-fitting of the bearing and the motor end cover. The end cover loading mechanism is composed of an end cover pushing and separating mechanism and an end cover picking and placing mechanism. The end cover pushing and separating mechanism comprises an end cover fixing plate, an end cover guide plate and anend cover pushing block. The end cover pushing block is in linkage with the output end of a first linear motion device. A left end cover limiting block and a right end cover limiting block are fixedlyarranged on the end cover fixing plate. The end cover guide plate is fixed on the upper side of an end cover fixing block. An end cover accommodating groove penetrating up and down is formed in the end cover guide plate. The motor end cover is vertically stacked and arranged in the end cover accommodating groove, and a cushion block is arranged between adjacent motor end covers.

A land grid array connector (10) for electrically connecting a CPU package to a printed circuit board includes a housing (30) having a top surface (320) and a number of terminals received in passageways (31) of the housing. Each of the terminals has a retention portion (52), a spring arm (54) extending from the retention portion beyond the top surface. A contacting portion (58) is formed on a topmost part of the spring arm for electrically mating with a corresponding pad formed on a bottom of the CPU package. A plurality of protrusions (324) is formed on the top surface for protect the terminals from being accidental damaged, A common supporting surface (326) is formed cooperatively by the protrusions, above the contacting portion in a direction perpendicular to the top surface. This can protect the contacting portion of the terminal from being collided. As a result reliable electrical connection between the package and contacts of the land grid array connector is secured.

The invention discloses a vertical beam falling-off prevention system. The system comprises three parts: the first part are square mesh energy consumption falling-off prevention beams placed and connected between a beam bottom and a capping beam, the second part are sliding cylinder connecting rod devices connected with two side surfaces of a bridge end above a pier and abutment, and a third part are anti-collision pieces placed at connection parts of bridge web boards. The invention relates to a vertical limit energy consumption beam falling-off prevention protective device for a bridge under earthquake. The protective device is simple in manufacturing, convenient to assemble and light in self weight. During normal operation, the device can be freely stretched out and drawn back along with the structure, under the action of the earthquake, the square mesh energy consumption falling-off prevention beams and sliding connecting rods drive shape memory alloy wires to be stretched for bearing force and wasting energy so as to effectively absorb earthquake destroy energy, and can limit the bridge to generate large displacement, so that under the action of strong shock, the damage due to the falling off of beams is effectively prevented, and the anti-collision pieces at the beam end can prevent the beam from collision. The system provided by the invention can effectively solve the problem that vertical displacement safety, continuous energy consumption capacity and falling off beam capacities of railway bridges under earthquake can not be ensured.

The invention relates to a path planning obstacle avoidance control method for an autonomous underwater vehicle in a large-scale continuous obstacle environment. The invention relates to the technicalfield of underwater robot path obstacle avoidance planning, and the method comprises the steps: building a large-scale continuous obstacle simulation training environment, building the state and action of a deep reinforcement learning neural network through employing obstacle avoidance sensor information as the input and the navigation speed and yaw angular speed as the output, for a multi-targetstructure of a motion planning obstacle avoidance control process, performing modular design on a reward function, and in order to avoid system instability caused by sparse rewards, setting continuous rewards are set in combination with an artificial potential field method. According to the method, obstacle avoidance training is carried out on the autonomous underwater vehicle by utilizing an improved depth deterministic strategy gradient algorithm, and an obstacle avoidance strategy obtained by training is written into a robot lower computer control system; when the autonomous underwater vehicle runs in an underwater canyon, obstacle avoidance is carried out by using an obstacle avoidance strategy learned by training, and the autonomous underwater vehicle safely reaches a target area.

The invention discloses a storage-battery anti-shock crashproof structure, aims at solving the disadvantages that when a conventional storage battery is installed and used, a battery group is easily extruded and injured because of shaking of a battery pack, and thus the battery pack is injured and has faults. The structure comprises a storage batter housing, the storage battery housing is inside provided with separation plates dividing the storage battery housing into multiple cell unit installation grooves; each cell unit installation groove is inside provided with a battery group unit; the bottom surface outside the storage battery housing is provided with transverse ribs and longitudinal ribs, and is coated with a vibration-damping pad which covers the transverse ribs and the longitudinal ribs; and the outer lateral walls at periphery of the storage battery housing are all provided with vertically-arranged sidewall ribs, and are all coated with crashproof pads which cover the sidewall ribs.

The invention discloses a washing machine and imbalance testing method and device thereof, the operation of the washing machine comprises the steps of controlling a washing barrel to operate at an accelerated speed according to a preset acceleration speed; in the process of accelerated operation of the washing barrel, detecting on a real time basis the electric current of the working of an electric engine, and calculating the capacity rate of the electric engine according to the electric current of the working of the electric engine; obtaining the capacity rates of more than one electric engine within the time per rotation circle of the washing barrel, and calculating the average value of the capacity rate of the electric engine according to the capacity rates of more than one electric engine, as well as the average value of the capacity rates of stored electric power; obtaining the lowest value of the average of the capacity rates of the stored electric power, and comparing the current average value of the capacity rates of the electric engine obtained from the calculation with the obtained lowest value to judge whether the washing barrel is in a dynamically imbalanced state. The method can achieve the detection of the dynamically imbalanced state of the washing barrel with no necessity of adopting a sensor, effectively brings down the cost of the detection and the degree of difficulty for detection, and avoids the problems brought by collisions and damages of machinery parts when carrying out the detection of the dynamically imbalanced state in the process of accelerated operation of the washing barrel.

A method and apparatus for providing a collision warning for a driver-controlled vehicle comprising:a) storing data relating to the geometry of a side of the vehicle; b) receiving data from at least one sensor for detecting an obstacle in the proximity of the vehicle; c) storing a position of the detected obstacle relative to the vehicle; d) measuring or inferring the instantaneous steering angle; e) predicting the trajectory of the side of the vehicle based on the geometry of the side of the vehicle and the instantaneous steering angle; f) determining whether the vehicle will collide with the detected obstacle based on the predicted trajectory and the stored position of the detected obstacle; g) calculating a position of a predicted collision zone on at least one of: the side of the vehicle and on the detected obstacle; h) providing a visual indication to a driver of the vehicle of the trajectory of the vehicle relative to the detected obstacle; and i) if the predicted trajectory of the side of the vehicle will result in a collision, providing a visual indication of the position of the predicted collision zone on at least one of: the side of the vehicle and position of the predicted collision zone on the detected obstacle.

The invention discloses a water detection type guide rail bottle straightening machine for beer bottles, which comprises a positive direction conveying belt, a negative direction conveying belt, and rollers and an electric speed reducer for driving the conveying belts, wherein a beer bottle inlet is provided with a bottle limited-quantity bottle-equalizing antiskid conveying belt; the tail end ofthe bottle limited-quantity bottle-equalizing antiskid conveying belt is connected with a hydraulic bottle conveying circulating water tank and a jetting circulating water pipe; the bottom of the hydraulic bottle conveying circulating water tank is provided with a broken bottle sediment removal scraper elevator conveying belt; a deep water area of the hydraulic bottle conveying circulating water tank is connected with a bottle collecting bucket; the tail end of the bottle collecting bucket is connected with a bottle positioning conveying guide rail consisting of positioning grooves and straightening guide blocks on the positive and negative direction conveying belts; and an outlet end of the bottle positioning conveying guide rail is connected with a downhill water-pouring conveying belt.By using the water detection type guide rail bottle straightening machine, the bottles are uniformly fed with limited quantity to avoid stacking impact failures of glass bottles, the high-low position water flowage cleans broken bottles and separates sundries, the bottle collecting bucket collects floating bottles, and an uphill inclined plane moving in parallel in positive and negative directions ensures that the glass bottles are positioned by changing the direction of bottle mouths by grooves and guide plates of a positive-negative direction driving chain in the upward moving process so asto enter the next production line.

The invention provides a medical device cleaning device with a circulation function and belongs to the technical field of medical cleaning and disinfecting. A speed reducer is arranged on the upper surface of a rotating shaft, and a rotating table is fixedly arranged at the upper end of the rotating shaft. A heat dissipation window is formed in the upper surface of a cover plate. The right end ofa circulation pump is connected with a cleaning tank through a water extracting pipe. The upper end of the circulation pump is connected with a purifying and sterilizing tank through a water extracting pipe. The right end of the purifying and sterilizing tank is connected with the cleaning tank through a water extracting pipe. A protection cover is arranged on the outer side of an ultraviolet sterilizer. A constant-temperature hot air blower is arranged on the upper surface of a supporting plate. By means of the medical device cleaning device with the circulation function, screwing devices arearranged on the two sides of a magnetic cleaning net and have the function of further fixing the magnetic cleaning net; the upper end of the circulation pump is connected with the purifying and sterilizing tank through the water extracting pipe so that the function of purifying waste water obtained after cleaning and recycling the waste water can be achieved; and the medical device cleaning device has the beneficial effects that the manufacturing technology is simple, practicability is high, and the cleaning and disinfecting treatment effect is good.

The invention discloses an installation device, relating to the technical field of mechanical assembly. The installation device is used for installing a shaft in a shaft hole of a shaft hole part and comprises a shaft hole part fixing device, a shaft fixing device and a support seat, wherein the shaft hole part fixing device is used for horizontally fixing the shaft hole part; the shaft fixing device is used for horizontally fixing the shaft; and the support seat is used for supporting the shaft hole part fixing device and the shaft fixing device; and the shaft hole center line of the shaft hole part fixed by the shaft hole part fixing device is aligned with the center line of the shaft fixed by the shaft fixing device. The shaft fixing device moves along the horizontal direction under the drive of a driving device. The installation device can accurately assemble the shaft and the shaft hole part and prevent collisions and gouges between the shaft and the shaft hole part in the installation process.

A fabric membrane texture and manufacturing method thereof explores a texture of fabric membrane comprising of 3D fabric. An upper and a lower fiber texture layers of the 3D fabric membrane are stretched to build up an air sandwich through plural middle connecting fibers. The 3D fabric enables to execute the functions of anti-bump, thermal insulating, thermal conductivity, air permeability and elastic strength. Additionally, a polymer membrane is used to adhere to at least one of the 3D fabric to build up a better function of shielding, insulating, or the capacity of ambiance impedance. Besides, this polymer membrane adheres to the 3D fabric using the process of low-pressure fixation that is applied to the product enables to obtain the better distance of spacer.

The invention relates to a clamping tool, in particular relates to a pipeline clamping tool, and belongs to the technical field of clamping tool design. The pipeline clamping tool comprises two hanging ropes and two hanging buckets, wherein a hanging ring is arranged on the outer wall of an opening of each hanging bucket; each hanging rope is wound on the corresponding hanging ring; a buffer layer is arranged in each hanging bucket; each hanging bucket is in welding connection or threaded connection with the corresponding hanging ring. The pipeline clamping tool is reasonable and simple in structure, and easy to produce and manufacture. Compared with an existing hoisting mode, the pipeline clamping tool has the advantages that the cost can be reduced, and the installation efficiency of a pipeline is improved.

The invention provides a multi-groove type medical cleaning and drying device comprising a box and a box door. A left holding plate, a heating cavity, a water discharging pipe, a right holding plate and a rotating motor are arranged on the box. The left holding plate is fixed to the left end of the box in a welded manner. A water tank is arranged on the left holding plate. The heating cavity is arranged inside the left end of the box. A partition plate is arranged at the right end of the heating cavity. The heating cavity is defined by the partition plate and the left end wall of the box. A heating wire is arranged in the heating cavity. The right holding plate is fixed to the right end of the box in a welded manner and located above the water discharging pipe. A drying device is arranged on the right holding plate and comprises an air blower, an air blow channel and an electric heating cabinet. The rotating motor is arranged at the upper end of the box. A rotating shaft is arranged at the lower end of the rotating motor. The box door is formed in the front face of the box. A handle is arranged on the box door. The multi-groove type medical cleaning and drying device has the dual purposes of cleaning and disinfection, is convenient to use, integrates cleaning and drying and has high efficiency; and warm water is used for cleaning, cleaning is complete, and the multi-groove type medical cleaning and drying device can clean multiple instruments at the same time.

The invention belongs to the field of assembly using a repair workshop, and particularly discloses an intelligent assembly system and intelligent assembly method using a repair workshop robot. The system comprises an intelligent AGV, an integrated operation module, a tray material module, a material port and a control module, wherein the integrated operation module comprises a grabbing and assembling robot, an automatic nail feeding device, a tightening robot and a fastening bolt marking robot; and the control module is used for planning an operation track according to the operation type, andcontrolling the intelligent AGV, the integrated operation module, the tray material module and the material port to work cooperatively according to the operation track. The method comprises the following steps of planning a movement path of the intelligent AGV, grabbing mounting materials, mounting fasteners on fastening holes of the mounting materials and fastening, and marking the fastened fasteners. According to the intelligent assembly system and intelligent assembly method using the repair workshop robot, an automatic assembly process of parts, an automatic screwing process of screws andan automatic anti-loose marking process of the fastened screws are combined, so that the labor is reduced, and the operation efficiency is improved.

The invention discloses an electric power equipment transportation fixing device comprising a bottom plate. Two symmetrical first sliding grooves are formed in the upper surface of the bottom plate. Afirst sliding block matched with each first sliding groove is clamped inside the first sliding groove, and the middle of the upper surface of each first sliding block is fixedly connected with a first connecting block. Two symmetrical groove plates are placed on the upper surface of the bottom plate. According to the electric power equipment transportation fixing device, the groove plates can better slide and can be better driven through operation of electric push rods to move, and accordingly, an electric power equipment body is fixed in a clamped mode and taken out; and the electric power equipment body can be better clamped through moving of the groove plates, can be better subjected to buffer protection through tension of springs and can be better compressed and fixed through operation of the electric hydraulic push rods, and the capability of the device for protecting electric power equipment and the safety of the device are improved.

A collision protection system is provided for a parked motor vehicle. That collision protection system includes a warning device, a sensor for detecting an approaching motor vehicle and a controller. The controller is configured to activate the warning device in response to a signal from the sensor indicating that the approaching motor vehicle is within a predetermined distance of the parked motor vehicle. A related method is also provided.

The invention discloses a rolling pad intelligent nursing system combining a bed and a chair. The nursing system comprises a rolling bed pad nursing bed and a rolling chair pad nursing chair, the rolling bed pad nursing bed comprises a bed frame, a supporting transmission pad is arranged at the top of the bed frame and connected with a horizontal rotating and driving mechanism in a transmission manner, the rolling chair pad nursing chair comprises a backrest portion, a pedal portion and a cushion portion, the backrest portion and the pedal portion are rotatably connected with the cushion portion, a chair pad transmission pad is arranged at the top of the cushion portion and connected with the chair pad horizontal rotating and driving mechanism in a transmission manner, and the rolling bedpad nursing bed and the rolling chair pad nursing chair can be mutually detachably combined. According to the nursing system, a horizontal human body is transferred onto the nursing chair from the nursing bed or the nursing bed from the nursing chair, the disabled does not need to be carried, strength is effectively saved, dependence on nursing staff is reduced, and collision damage to the disabled is effectively avoided when the disabled is carried.

The invention provides a shock-resisting downhole screw type pulse generator which comprises an outer shell, a lock nut, a gland nut, an upper thrust bearing, a lower thrust bearing, a flexible rod, a stator rubber tube, a hollow rotor, a movable valve disk and a fixed valve disk. The flexible rod is arranged on the inner side of the outer shell and comprises a disk-shaped structure; a plurality of tap holes are formed in the disk-shaped structure; the lower thrust bearing is arranged below the disk-shaped structure; the upper thrust bearing is arranged on the disk-shaped structure; the gland nut is arranged on the upper thrust bearing; the lock nut is arranged on the gland nut; the hollow rotor is arranged on the inner side of the stator rubber tube; the lower end of the flexible rod is fixed to the hollow rotor; and the movable valve disk is located below the hollow rotor. The interval between the movable valve disk and the fixed valve disk of the shock-resisting downhole screw type pulse generator can be adjusted, and installation and adjustment of the whole machine are facilitated.

The invention relates to a button motor automatic pressing machine, which includes a frame, on which a feeding mechanism and a pressing mechanism that cooperate with each other are arranged, and the feeding mechanism includes an upper cover arranged on the frame in front of the pressing mechanism The feeding track and the feeding and conveying device set on the right side of the pressing mechanism to cooperate with the feeding track of the upper cover, the feeding carrier of the upper cover is placed on the feeding track of the upper cover, and the right side of the pressing mechanism is provided. Pressing device, the pressing device includes a pressing lifting cylinder vertically arranged on the pressing mechanism, the lower end of the push rod of the pressing lifting cylinder is connected with a pressing seat, and the lower part of the pressing seat is vertically arranged to cooperate with the feeding carrier of the upper cover. The pressing rod of the press-fitting servo motor drives the press-fit lifting seat to slide up and down, and the press-fit lifting seat drives the shell pressing device to cooperate with the carrier, and the upper cover and the bottom shell of the button motor are pressed tightly together. Realize the automatic pressing of the button motor, improve the stability of the product, and improve the production efficiency.

The invention discloses a plucking device for citrus. The plucking device for citrus comprises a sleeve and a clamping jaw, the front end of the sleeve is a taper hole while the rear end of the sleeve is the material feeding channel, the clamping jaw comprises clamping heads, a connection rod, a pushing ring, a locating ring and a reset spring, the front end of one clamping head is provided with a left cutting knife while the front end of the other clamping head is provided with a right cutting knife propping against the left cutting knife, the right cutting knife bends downward and the angle between the right cutting knife and the cutting line of the front end is 20-35 degrees; one end of the connection rod is connected with the clamping head while the other end thereof is connected with the pushing ring, the pushing ring is connected with the inner wall of the sleeve in a sliding mode, the locating ring is located below the pushing ring and the locating ring is fixedly connected with the inner wall of the sleeve, one end of the reset spring is connected with the pushing ring while the other end of the reset spring is connected with the locating ring; the bottom of the sleeve is provided with a storing box connected with the material feeding channel. The plucking device for citrus is simple in structure and high in efficiency, can avoid the mutual damage for the citruses and solves the defects of the existing technology for plucking the citrus via the scissors that the operation is trouble, the efficiency is low and the citruses are easy to damage.

The invention discloses a medical instrument storage device which comprises a box, wherein a medical identifier is fixedly connected with the front side of the box; a box cover is moveably connected with the top of the rear side of the box through a hinge; first fixing blocks are fixedly connected with the two sides of the bottom of the inner wall of the box; second fixing blocks are fixedly connected with the two sides at the bottom of the inner chambers of the first fixing blocks; first moveable rods are moveably connected with the tops of the second fixing blocks. According to the invention, the first fixing blocks, second fixing blocks, first moveable rods, third fixing blocks, moveable plates, tension springs, second moveable rods and a cushion are used together for solving the problem that the present medical instrument storage device has no damping function. The medical instrument storage device has the advantage of damping function, is capable of preventing the medical instruments in the box from being collided and damaged, is capable of effectively protecting the medical instruments, is capable of accelerating the rescuing for the wounded personnel and saving the life of the wounded personnel and is worthy of popularization and application.

An embodiment of the invention provides a front-loading washing machine, a dewatering control method and device thereof and a machine readable storage medium and belongs to the technical field of washing machine control. The method includes: when a drum rotates at first rotation speed, at least determining the first acceleration fluctuation value in the radial direction of the drum; selecting second rotation speed associated with the first acceleration fluctuation value from a preset dewatering rotation speed set, and controlling the drum to rotate at the second rotation speed; when the drum rotates at the second rotation speed, at least determining a second acceleration fluctuation value in the radial direction; when the second acceleration fluctuation value is larger than a first preset threshold, controlling the drum to stop dewatering. By the method, reasonable drum rotation speed can be set in the dewatering process of the front-loading washing machine, vibration and noise of the front-loading washing machine in the dewatering process are prevented, the washing machine is controlled to stop the dewatering process during severe imbalance through the threshold so as to prevent the collision damage of the internal mechanical parts of the washing machine, and the service life of the washing machine is prolonged.

The invention discloses an automatic punching device for fastening pieces. The automatic punching device comprises a working table, a feeding mechanism, a transferring mechanism, a positioning mechanism and a punching mechanism, wherein the feeding mechanism comprises a feeding support, a feeding chute and a temporary storage tank; the fastening pieces are fed into the feeding chute through a vibrating feeding disc and further fed into the temporary storage tank through a first pushing cylinder; a second pushing cylinder pushes the fastening pieces out to be transferred; the positioning mechanism comprises a positioning seat, a clamping disc and a positioning sleeve rod; the clamping disc can effectively fix the positioning sleeve rod; the transferring mechanism comprises a transferring frame, a grabbing cylinder and a grabbing component; the transferring frame drives the grabbing component to perform vertical or horizontal movement; and the grabbing cylinder drives the grabbing component to grab or release the fastening pieces. According to the automatic punching device for fastening pieces, the structure is compact, the degree of automation is high, the fastening pieces can be effectively punched, the punching efficiency is high, and the punching quality is good.

The invention discloses a vehicle-mounted air purifier with good shock absorption effect, which comprises a fixing seat, the bottom of the inner wall of the fixing seat is symmetrically and fixedly connected with a support plate, and a connecting plate is arranged inside the fixing seat, and the connecting plate Both sides of the connecting block are fixedly connected with a connecting block, and the side of the connecting block away from the connecting plate is slidingly connected with the support plate, and the front surface of the connecting plate is fixedly connected with a fixing plate. The present invention is provided with a fixed seat, a support plate, a connecting plate, a connecting block, a fixed plate, a bump, a cylindrical iron, an air purifier body, a partition, a first positioning block, a connecting plate, a first spring, a second positioning block, The third positioning block, the limit block, the telescopic rod and the second spring solve the problem that the existing vehicle-mounted air purifier does not have a shock-absorbing effect, and the air purifier body is shock-absorbed, avoiding the use of the air purifier body. Sometimes damage occurs due to vibration, which reduces the economic loss of users.

The invention discloses a radial rotary sealing device for magnetic liquid and belongs to the field of mechanical engineering sealing. By means of the radial rotary sealing device for the magnetic liquid, the problems that when an existing sealing device is in use, it is difficult to add or replace magnetic liquid, and machining accuracy and assembly accuracy are too high due to the fact that the axial length is large are solved. According to the sealing device for the magnetic liquid, radial sealing is adopted, the axial dimension is reduced by increasing the radial dimension, a first magnetic disc is connected with a shell through screws, and detachment is convenient. Moreover, the invention provides a novel mode for designing the rotary sealing device for the magnetic liquid.

Aiming at the problems that time and labor are wasted when female and male silkworm eggs with different egg colors are separated and the requirement of production of silkworm seeds on time schedule is difficult to meet, the invention provides an instrument for automatically and accurately separating female and male silkworm eggs at a high speed, and the instrument is labor-saving and ensures thatthe silkworm eggs are not damaged. The separator for female and male silkworm eggs, provided by the invention, takes the characteristic that different sexual silkworm eggs have different egg colors as a design characteristic for recognizing and distinguishing the female and male silkworm eggs and focuses on overcoming the physiological property of the silkworm eggs that the silkworm eggs is not favorable for mechanical and automatic control. Through applying technologies such as turnplate type obliquely scraping egg transportation, and the like and using devices such as a single-channel prearranged counting and number control egg supply device, a multi-channel coil shunting and spaced radiation state sorting device, a respectively independent color sensor photoelectric recognition and electromagnetic egg pocketing device separation device, an obliquely scrapping, egg collecting and separately storing device and the like, high-speed and precise female and male silkworm egg separation is realized, the purposes of not damaging the silkworm eggs and maintaining the activity of the silkworm eggs are achieved, and labor is also greatly reduced.

The invention discloses a process for improving the corrosion-resisting property of magnesium alloy by utilizing subzero treatment. The process comprises solution treatment, aging treatment and subzero treatment. Compared with the prior art, the invention adopts the magnesium alloy subzero treatment process to realize the purpose of improving the corrosion-resisting property of magnesium alloy base metal, and avoids the defects that the bonding force is poor, coating is damaged and the like when surface coating treatment is adopted.