Circuit board test needle bed from dynamic positioning device

The utility model provides a circuit board test needle bed from dynamic positioning device. The device includes: needle bed driving motor, screw rod, go up backup pad, needle bed board, probe, guide arm, board recess, locking device, micromatic setting, base await measuring. Wherein, the screw rod is connected with last backup pad, and the needle bed board is fixed in last backup pad, and needle bed driving motor passes through the upper and lower displacement of screw rod control needle bed board, the accurate location of guarantee to await measuring circuit board and probe is used in the cooperation of locking device and micromatic setting. The utility model discloses the effectively measuring accuracy and the efficiency of software testing of improved circuit board.

Preparation method of grape seed fermented rice wine

The invention discloses a preparation method of a grape seed fermented rice wine. The method comprises the following steps: 1. grape seed powder: (1) pretreatment of grape seed; (2) low-temperature baking; (3) grinding; 2. glutinous rice: (1) pretreatment of glutinous rice; (2) steaming; (3) cooling; 3. rice wine: (1) early fermentation of grape seed powder, steamed glutinous rice, edible red koji and distilled water (the ratio of the rice to the grape seed powder to the monscuspurpureus is 8:2:1, the rice, grape seed powder and monscuspurpureus are generally called dry matters, and the ratio of the distilled water to the dry matters is 1:1); (2) later fermentation of filtrate (gauze filtration) and activated alcohol yeast (accounting 0.1-0.5% of the total mass) to generate alcohol; and 4. blending: 80-85% of raw juice (grape seed powder fermented wine raw liquor), 0.5-1.0% of grape condensed juice (fresh grape condensed juice), 0.1-0.5% of citric acid and 6-8% of sucrose (the ratio of ...

Method for determining aging degree of composite insulator by using swellbility

The invention relates to a method for determining aging degree of a composite insulator by using swellbility, which comprises the following steps: acquiring a composite insulator umbrella skirt sample; immersing the composite insulator umbrella skirt sample in an organic solvent, measuring the mass after fully immersing; fully drying the composite insulator umbrella skirt sample after measuring the mass, and then measuring the mass again; calculating the swellbility of the composite insulator; and determining the aging degree of composite insulator according to the swellbility. According to the invention, the design is reasonable, the composite insulator umbrella skirt is immersed in the organic solvent, change condition of organic polymer content is evaluated according to the mass increasing degree after immersing the composite insulator umbrella skirt, furthermore the aging degree of composite insulator material can be determined, effective assessment function of the aging degree of composite ...

Crosslinking polyethylene-insulated cable insulation diagnostic apparatus

The invention discloses a cross-linked polyethylene cable insulation diagnostic apparatus for diagnosing the insulation property of a cross-linked polyethylene cable, comprising a box body and a main circuit; the invention is characterized in that: the main circuit is composed of a voltage select circuit, a high-voltage voltage transformation circuit, a polarity select circuit, a function select circuit, a measurement range select circuit, a high-voltage accumulator, a current sensing circuit, a high-voltage output interface, a charging and discharging circuit, a battery cell power supply, a high interference resistant amplifier circuit, an ammeter, a voltage sampling circuit and a voltmeter; the high-voltage circuits of the main circuit are connected with coaxial cables earthed for shielding, which eliminates the metering error caused by leakage current generated in the loops of the cables and the influence of the leakage current outside the cables on the measuring accuracy; with the DC ...

Movable type irrigation deep-fertilization device

A movable type irrigation deep-fertilization device includes three parts: a fertilization liquid container, a fertilization liquid controller, and a fertilization hole puncher. The bottom of the interior of the fertilizer container is provided with the fertilization liquid quantitative controller; the fertilization liquid quantitative controller comprises a storage battery, a pump, an electromagnetic valve and a timing controller; the fertilization hole puncher is provided with a handle, a fertilizer output rod, a fertilizer outlet, a punching drill and other structures. Through the timing controller and the fertilization hole puncher, water-fertilizer variable accurate quantification and accurate positioning fertilization are achieved, the fertilization working time is effectively saved, the fertilizer utilization rate and the agricultural crop yield and quality are improved, and the movable type irrigation deep-fertilization device has relatively high economic and social benefits.

Water-fertilizer precise-quantity application device

A water-fertilizer precise-quantity application device is provided. A fertilizer quantitative controller is arranged at the bottom of the interior of a fertilizer container, and comprises a storage battery, a pump, an electromagnetic valve and a timing controller; power supplies of the pump and the timing controller are connected onto the storage battery, the pump is connected with a fertilizer conveying pipe provided with the electromagnetic valve, and the electromagnetic valve is connected with the timing controller. With adopting of the water-fertilizer precise-quantity application device, the electromagnetic valve opening time is controlled by adjusting a control adjusting switch of the timing controller so as to control the each-time fertilizer flow quantity, and water-fertilizer variable accurate quantitative application is achieved.

Method for determining service life of composite insulator based on color difference

The invention relates to a method for determining the service life of a composite insulator based on color difference. The method is technically characterized by comprising the following steps: collecting a composite insulator umbrella skirt sample; photographing the composite insulator umbrella skirt sample and quantitatively obtaining RGB (Red, Green, Blue) color vectors of the composite insulator umbrella skirt sample; with the RGB color vectors of the inner side of the composite insulator umbrella skirt sample as a base vector, subsequently subtracting the RGB color vector of the upper surface and the RGB color vector of the lower surface of the umbrella skirt sample from the base vector to obtain a differential vector, and representing a color difference value by a modulus of the differential vector; and determining the service life of the composite insulator according to the color difference value. With the adoption of a color difference analyzing method, the color difference between ...

Flue-cured tobacco wide-narrow row high-low ridge planting method

The invention provides a flue-cured tobacco wide-narrow row high-low ridge planting method. According to the method, plants are distributed alternatively in wide and narrow rows and high and low ridges and plant distance is determined, wherein the row distance of the wide rows is 110-120 cm, the row distance of the narrow rows is 75-95 cm, the height of wide row ridges is 25-30 cm, the width of the ridge surfaces of the wide row ridges is 60-80 cm, the height of narrow row ridges is 10-20 cm, and the width of the ridge surfaces of the narrow row ridges is 30-40 cm. The aim of optimizing flue-cured tobacco group structures is achieved, ventilation and light-permeable conditions of tobacco leaves on the upper portion and on the lower portion are improved, temperature and humidity conditions of soil are adjusted, and disease and pest infection of flue-cured tobacco is effectively prevented.

Phase position check method of high voltage cable frogging interconnected system

The invention discloses a phase position check method of a high voltage cable frogging interconnected system. The method includes the steps that first, a detection person performs wiring on the first segment of a high voltage cable; second, the detection person goes to a first connector box of the high voltage cable to check the phase position of the frogging interconnected system; third, the detection person goes to a second connector box of the high voltage cable to check the phase position of the frogging interconnected system; fourth, the steps are repeated till all the phase position check work of the frogging interconnected system is completed. According to the method, an existing phase position check method of the high voltage cable frogging interconnected system is improved, and in other words, under the condition that no person is located at the opposite end for cooperation with the detection person, the phase position check work can be completed fast and efficiently just through ...

Repairing liquid injection system for cross-linked cable

Automatic detection apparatus for railway system signal circuit board

The utility model relates to a detection area of circuit board especially relates to an automatic detection apparatus for railway system signal circuit board. Include: control box, needle bed driving motor, screw rod, guide pillar, last backup pad, needle bed board, probe, locking device, base, pick -up plate, pick -up plate backup pad, pick -up plate driving motor and power cord, needle bed driving motor and pick -up plate driving motor pass through power cord and control box and link to each other, and the needle bed board is fixed in last backup pad, is equipped with test probes on the needle bed board, and the backup pad reciprocates through the guide pillar in the control of needle bed driving motor, and locking device is used for the fixed target board, and messenger's target board does not take place to squint in test procedure. The pick -up plate is fixed in the pick -up plate backup pad, removes about pick -up plate driving motor control detection board backup pad. This frock can ...

Crosslinking polyethylene-insulated cable insulation diagnostic apparatus

Wind power generation heat accumulation system

The utility model discloses a wind power generation heat accumulation system, it includes: wind generator system, power switch control system, electric boiler heat accumulation control system and heating system. Wind generator system passes through dc -to -ac converter access transmission line by the electric energy that aerogenerator sent, provides the electric energy of standard voltage grade for electric boiler, power switch control module cut -offs according to PLC's command control power switch's, electric boiler heat accumulation system utilizes electricity that aerogenerator the sent water in to the electric boiler to heat, sets for the temperature and rolls off the production line on, produces signal control power switch's state, heating system passes through the heat supply pipeline and is user's heat supply. This system can improve this locality ability of dissolving of wind -powered electricity generation, lightens the outer pressurization pressure of electric wire netting. Especially ...

Pesticide/fertilizer applying device

A pesticide/fertilizer applying device comprises a pesticide/fertilizer container, a pesticide/fertilizer conveying pump, a conveying pipe, a pesticide/fertilizer applying switch, a pesticide/fertilizer applying rod, a pesticide/fertilizer applying nozzle and a quantitative pesticide/fertilizer applying control circuit module, wherein the whole device is powered by a storage battery mounted at the bottom of a pesticide barrel; the quantitative pesticide/fertilizer applying control circuit module controls start, stop and rotating speed of a miniature diaphragm pump according to a preset work mode; a water pump is connected with the conveying pipe and the nozzle, and different spraying effects can be realized by replacing different nozzles so as to adapt to different spraying applications. With adoption of the pesticide/fertilizer applying device, application of rooting fertilizer water, a fertilizer solution, pesticide and a bud inhibitor can be integrated, the device is portable, simple ...

Portable precise topdressing device

A portable precise topdressing device is composed of two parts of a fertilization container and a fertilization device; the fertilization container is provided with straps, and one fertilizer delivery pipe at the bottom of the fertilization container is connected to the fertilization device; the fertilization device is composed of a handle, a depth limiting plate, an upper material control bin, a lower material control bin, a hole puncher and a material discharge bin. By adopting the structure, with adjustment and control of the fertilizing amount by the upper material control bin, the lower material control bin and the depth limiting plate, and with positioning cooperation of the hole puncher, uniform precise positioning fertilization can be achieved, the fertilization working time is saved, the fertilizer utilization rate is increased, the yield and quality of agricultural crops are increased, and relatively large economic and social benefits are achieved.

Health-care wood bits pigeon's nest

A health-care dove nest is made of wood bits, urea-formaldehyde resin and ammonium chloride through mixing them together in the ratio of 10 : 3 : 0.5, stirring, die pressing at 100-120 deg.C and under the pressure not lower than 15 tons to form the dove nest and laying the Dalmatian chrysanthemum and stemona root on the surface of dove nest for killing pests and bacteria.

Rear protection device of truck

The utility model provides a rear protection device of a truck. Wherein one end of each connecting plate is welded with the rear bumper, the other end of each connecting plate is fixedly connected with a truck longitudinal beam bolt, the two sides of the rear part of the truck are fixedly connected with two connecting plates respectively, a stop plate is arranged at the rear end part of the trucklongitudinal beam, the section of the stop plate is L-shaped, the stop plate clings to the bottom surface and the rear end surface of the truck longitudinal beam, and the side surface is welded with the connecting plates; according to the utility model, the stress condition of the longitudinal beam connecting bolt is improved, the impact load is transmitted to the truck longitudinal beam through the stop plate, and the stress of a bolt group is reduced; and the rigidity of the connecting plate is increased, and distortion of the connecting plate is reduced during collision.

Precast concrete with filling heat preservation externally -hanging wallboard connecting piece and supplementary mounting tool thereof

The utility model provides a precast concrete with filling heat preservation externally -hanging wallboard connecting piece and supplementary mounting tool thereof. Precast concrete with filling heatpreservation externally -hanging wallboard connecting piece is including thermal -insulated rubber locating part, stainless steel adapting piece, stainless steel adapting piece includes public linkageunit bolt and female linkage unit nut, supplementary mounting tool includes spacing bolt and steel sheet work platform. The utility model provides a precast concrete with filling heat preservation externally -hanging wallboard connecting piece is fixed in externally -hanging wallboard outside concrete layer, runs through heat preservation and anchor in inboard concrete layer through supplementarymounting tool, makes the interior outside of externally -hanging wallboard form the whole combined action of structure, under the the same conditions, can reduce wall plate thickness and weight, reduces ...