258results about How to "Avoid uniformity" patented technology

The invention discloses a method for preventing a high-carbon tool steel hot rolled steel coil from being flattened, which comprises the following steps of: providing a continuous casting slab which comprises the following components in percentage by mass: 0.65 to 1.35 weight percent of C, 0 to 1.6 weight percent of Si, 0 to 1.2 weight percent of Mn, 0 to 1.2 weight percent of Cr, less than or equal to 0.030 weight percent of P, less than or equal to 0.030 weight percent of S and the balance of iron and inevitable impurities; the charging temperature of the continuous casting sheet billet is larger than or equal to 300 DEG C, the continuous casting sheet billet is fed into a heating furnace to be heated, the discharging temperature of the continuous casting sheet billet is 1150-1250 DEG C, and a first sheet billet is obtained; the first plate blank is subjected to rough rolling, the rough rolling and finish rolling temperature ranges from 1050 DEG C to 1150 DEG C, and an intermediate blank is obtained; the intermediate billet is subjected to finish rolling, the finish rolling temperature of finish rolling is 800-950 DEG C, and finish rolled steel is obtained; laminar cooling is conducted on the finish-rolled steel in a front-section centralized cooling mode, final fine adjustment water and front and rear side spraying of laminar cooling are closed, the temperature of the finish-rolled steel is reduced to the first target temperature to the phase transformation point, and cooled steel is obtained; and the cooled steel is coiled at the temperature of 590-690 DEG C, the coiling tension is increased by 10%-20% in the coiling process, and a hot rolled steel coil of the high-carbon tool steel is obtained.

The invention provides a cable insulation performance detecting and repairing device and method. The cable insulation performance detecting and repairing device comprises a cable laying device, a detecting mechanism, a repairing mechanism and a cable collecting device. The cable laying device is used for stably releasing a to-be-detected cable. The detection mechanism is used for detecting cable insulation performance and comprises a detection ring, a first driving device and an electric leakage detection device, and insulation defects are positioned by rotating the detection ring and acquiring electric leakage current signals; the repairing mechanism comprises a gluing mechanism and a drying box, the gluing mechanism is used for coating glue to the cable through the glue injection device and the gluing device after the damage point is detected, and the drying box accelerates repairing and solidifies the glue; and the cable take-up device is used for taking up the repaired cable. The automatic and cooperative work of all mechanisms in the whole device greatly improves the speed and quality of cable insulation performance detection and repair, avoids the problem of uneven repair or leak detection caused by misoperation or low efficiency in traditional manual operation, and remarkably improves the safety, reliability and construction efficiency before cable construction.

The invention relates to the technical field of cement-based anticorrosive materials, and particularly discloses a modified magnesium phosphate cement anticorrosive material as well as a use method and application thereof. The anticorrosive material comprises the following components in parts by weight: 100 parts of modified magnesium phosphate cement, 3-15 parts of a retarder, 1-10 parts of an epoxy resin glue solution, 0.5-5 parts of metakaolin and 15-20 parts of water. The modified magnesium phosphate cement comprises dead burned magnesium oxide and modified phosphate in a mass ratio of (1-4): 1. The modified phosphate is prepared from the following raw materials: nano aluminum oxide, sodium citrate and phosphate in a mass ratio of (0.5-1.5): (0.5-1.5): (20-25). The epoxy resin glue solution comprises uncured epoxy resin glue and a curing agent. The anti-corrosion material provided by the invention has the technical advantages of strong adhesive property and excellent anti-corrosion property, and can better provide protection for a steel structure serving in a marine environment.

The invention relates to the technical field of magnesium powder passivation, and particularly discloses a magnesium powder heating and passivating device which comprises a reaction cylinder, a heating mechanism and a spraying mechanism, a mounting cylinder is rotationally connected in the reaction cylinder, a plurality of material distributing plates are arranged on the mounting cylinder in the circumferential direction of the mounting cylinder, part of the material distributing plates extend to form stopping plates, and a driving assembly for driving the mounting cylinder to rotate is arranged on the reaction cylinder; a plurality of intercepting toothed plates are arranged on the mounting cylinder in the circumferential direction of the mounting cylinder, the intercepting toothed plates are rotationally connected with the mounting cylinder, and a force storage part is arranged at the rotating joint; a guide structure is arranged on the reaction cylinder, when the interception toothed plate is in contact with the guide structure, the guide structure drives the interception toothed plate to rotate to store force, and when the interception toothed plate is separated from the guide structure, the force storage piece drives the interception toothed plate to throw magnesium powder cakes to the material distribution plate. According to the magnesium powder heating and passivating device, magnesium powder can be divided into a plurality of parts, passivating agents are sprayed below the spraying mechanism, the magnesium powder can be caked, impacted and dispersed, and the mixing uniformity of the magnesium powder and the passivating agents is improved.

The invention relates to an efficient heat exchanger for petrochemical engineering, and relates to the technical field of heat exchangers. The device comprises a heat exchange shell, a corrosion inhibition box fixed to the heat exchange shell, a plurality of heat exchange pipes and two baffle plates which are rotationally arranged on the heat exchange shell, a processing mechanism for conducting scraping, brushing, fracture detection and marking on the heat exchange pipes correspondingly, and a rotating assembly for conducting rotating driving on the heat exchange pipes. The translation assembly is used for carrying out translation driving on the two baffle plates; the test assembly is used for carrying out deformation detection on the inner wall of the heat exchange shell; the corrosion inhibition box is used for storing a corrosion inhibitor, and a control assembly used for controlling the release amount of the corrosion inhibitor is arranged on the heat exchange shell. The purpose of heat exchange between the petroleum raw material and the heat medium can be achieved, the petroleum raw material can be guided to be evenly distributed in the tube pass, the phenomenon that the petroleum raw material forms laminar flow or uneven flow in the tube pass is avoided, heat stress caused by uneven heating of the heat exchange tube is prevented, and deformation and cracking of the heat exchange tube due to the heat stress are prevented.

The invention discloses a graded weighing type movable flow-state solidified soil mixer truck, and belongs to the technical field of flow-state solidified soil mixers.The graded weighing type movable flow-state solidified soil mixer truck comprises a mixer truck body, a speed reducer is arranged on the side, facing a truck head, of a mixing box body, and a second supporting frame is arranged below the speed reducer and located on the top face of an L-shaped chassis; the speed reducer is connected with a stirring shaft in an inner cavity of the stirring box through a motor, a first supporting frame is arranged on the side, back on to the vehicle head, of the stirring box and located on the top face of the L-shaped chassis, a front end buffering assembly is arranged between a second supporting frame and a longitudinal vertical plate of the L-shaped chassis, and a tail end buffering assembly is arranged between the first supporting frame and the top face of the tail end of the L-shaped chassis. A first hydraulic damper is connected between the first supporting frame and the stirring box body, and when the stirring vehicle body moves forwards or backwards, raw materials in an inner cavity of the stirring box body tend to be in a stable state under multiple buffering and damping of the front end buffering assembly, the tail end buffering assembly and the first hydraulic damper, so that the stirring box body is buffered and damped.

The invention discloses a multi-cluster interlayer / in-fracture temporary plugging diversion fracturing process and a product preparation method, and particularly relates to the technical field of petroleum and natural gas exploitation, the fracturing process comprises the steps of dividing fracturing sections according to the physical property of a horizontal section reservoir of a coal-bed gas well, monitoring and automatically adjusting parameters during drifting, injecting prepad fluid to form a main fracture, and injecting sand adding fluid in a stepped mode. Preparing and injecting a temporary plugging material, injecting prepad fluid again to form a new crack, injecting sand-adding fluid into the new crack, replacing the sand-carrying fluid with clear water after fracturing, discharging the fluid and monitoring. The preparation method of the temporary plugging material comprises the steps of raw material mixing, extrusion granulation, drying, secondary extrusion granulation and the like, and the performance of the temporary plugging material is ensured through the measures of a specially designed screw structure, accurate control of temperature and humidity, addition of an auxiliary agent and the like. According to the method, the longitudinal crack coverage rate and the oil and gas recovery rate are increased, accurate control is achieved, the formation damage rate and the accident rate are reduced, it is ensured that the quality of the temporary plugging material is stable, and the formation permeability recovery rate is increased.

The invention discloses an enzyme-assisted pine needle flavone extraction device, which comprises an enzyme supply assembly for putting an enzyme solution into an extraction tank body, and a feeding pipe for putting pine needle powder is fixedly inserted into the extraction tank body. A dispersing mechanism for dispersing pine needle powder introduced by the feeding pipe to different height positions is arranged in the extraction tank body, and a driving motor for enabling the pine needle powder fed at the different height positions to be distributed in a circumferential dispersing manner when the dispersing mechanism is driven to rotate is mounted at the top of the extraction tank body; the dispersing mechanism comprises a middle shaft rod in transmission connection with the driving motor and a guide assembly fixedly arranged on the outer surface of the middle shaft rod in a sleeving mode, and a cavity is formed in the middle shaft rod. According to the invention, multi-depth-level all-directional feeding can be realized, the dispersity is improved, single-point accumulation and floating phenomena are reduced, the flowing and mixing of extract liquor are facilitated, and the extraction is more uniform and thorough.

The invention discloses a logistics warehouse management system based on big data, and belongs to the technical field of logistics management. The method is used for solving the technical problems that the warehousing states of different warehousing positions cannot be supervised and analyzed according to each batch of logistics warehousing and data expansion and utilization of different dimensions cannot be implemented in the existing scheme. The warehousing states of different warehousing positions are supervised and analyzed according to each batch of logistics warehousing storage, so that periodic local warehousing state supervision can be implemented on different warehousing positions in a logistics warehouse; reliable local data support can be provided for subsequent adjustment management analysis of different storage positions and overall saturation condition analysis of the logistics warehouse; according to the method, the periodic local storage state supervision results of different storage positions in the early stage are expanded and utilized, and reliable data support can be provided for subsequent dynamic management prompts of different storage positions while the overall filling stability conditions of the different storage positions can be analyzed and classified.

The invention belongs to the technical field of polyester production, and relates to a production method of polyester FDYs (fully drawn yarns), which comprises the following steps of: interlacing tows between a second hot box and a winding roller by using an interlacing device in a spinning process, and applying friction force to the tows between the second hot box and the interlacing device by using a tensioning yarn guide rod so as to counteract part of tension borne by the tows; and thus, the network pressure during network addition is reduced. On the premise that the product quality is guaranteed, the network air pressure and the air consumption in the production process of the polyester FDY are reduced during network adding.

The present invention discloses a grinding device for processing a brake disc, which relates to the technical field of brake disc processing, and comprises a box body and a brake disc body. A placing table is rotatably installed on the top of the box body, and the brake disc body is installed on the top of the placing table. A fixed frame is fixedly installed on one side of the box body, and a mobile frame is arranged on the fixed frame. A first cross bar is arranged on one side of the mobile frame, and a grinding component for grinding the upper and lower surfaces of the brake disc body is arranged on the first cross bar. The grinding device for processing a brake disc realizes reciprocating and uniform grinding of the brake disc body by a surface grinding piece through a series of mechanical linkage structures driven by a driving motor. This mechanized grinding method is more accurate and stable than manual operation, and effectively improves the grinding efficiency and quality.

The invention relates to the technical field of wire cutting, in particular to a cutting device for prestressed steel strand production. Comprising a bottom frame which is in sliding connection with a movable frame; the motor is mounted on the moving frame, and an output shaft of the motor is fixedly connected with a saw blade; the mounting frame is fixedly connected to the bottom frame, the mounting frame is provided with supporting frames which are arranged at intervals, the supporting frames are fixedly connected with fixing belts, the fixing belts are used for hooping the steel strands so as to ensure the stability of the steel strands in the cutting process, and the supporting frames are slidably connected with L-shaped plates. According to the steel strand cutting device, the steel strand is tightly hooped through the folded fixing belts, so that in the cutting process of the steel strand, external force exists to overcome the force which interferes with the normal shape of the steel strand and is brought by cutting of a high-speed rotating saw blade, the cutting area of the steel strand is prevented from being scattered, the cutting quality is improved, and the danger caused by jumping of the steel strand is avoided.

The invention discloses an X65MOS-grade seabed acid-resistant pipeline steel plate and a manufacturing method thereof. The X65MOS-grade seabed acid-resistant pipeline steel plate comprises the following chemical components in percentage by weight: 0.01-0.05% of C, 0.05-0.35% of Si, 1.21-1.55% of Mn, less than or equal to 0.010% of P, less than or equal to 0.0015% of S, less than or equal to 0.3% of Cu, less than or equal to 0.3% of Ni, 0.1-0.5% of Cr, 0.02-0.09% of Mo, 0.02-0.049% of Nb, 0.005-0.015% of Ti, 0.001-0.004% of Ca, 0.01-0.05% of Alt, less than or equal to 0.0004% of B, less than or equal to 0.0002% of H, less than or equal to 0.0025% of O and the balance of Fe Alt-Als is less than or equal to 0.008%, and Ca / Alt is more than or equal to 0.1. The thickness of the steel plate reaches 15-40 mm, the yield strength Rt0.50 of the steel plate is larger than or equal to 450 MPa, the tensile strength Rm of the steel plate is larger than or equal to 535 MPa, the yield ratio Rt0.50 / Rm of the steel plate is smaller than or equal to 0.92, the Charpy impact energy at the temperature of-25 DEG C is higher than 250 J, the DWTT test SA% at the temperature of-15 DEG C is larger than or equal to 85%, and the CTOD characteristic value delta m at the temperature of-25 DEG C is larger than or equal to 0.35 mm.

The utility model provides equipment for wet cleaning and etching. The equipment comprises a liquid conveying pipeline, a box body, a heating device and a spraying device, one end of the liquid conveying pipeline is connected with a chemical solution supply device, the other end of the liquid conveying pipeline is connected with the box body, and the chemical solution supply device conveys a chemical solution into the box body through the liquid conveying pipeline; the heating device is used for heating the chemical solution in the box body; and the spraying device is connected with the box body and is used for spraying the heated chemical solution to the wafer. According to the utility model, the box body is arranged between the spraying device and the liquid conveying pipeline to store the chemical solution, and the heating device is utilized to heat the chemical solution in the box body, so that the chemical solution sprayed to the wafer by the spraying device reaches a set temperature value, the rate of chemical reaction is guaranteed, and the chemical reaction efficiency is improved. And the condition of non-uniform etching or incomplete cleaning is avoided.

The utility model relates to a fired mold cooling device which comprises a cooling tank body, a chilling block and a casting mold part, cooling liquid is placed in the cooling tank body, the chilling block is placed in the cooling tank body, and one end of the chilling block is in contact with the cooling liquid; and the other end of the chilling block is in contact with the large plane of the casting mold. One end of the chilling block is in direct contact with the cooling liquid, and the other end of the chilling block is in contact with the large plane of the casting mold, so that the large plane of the casting mold is rapidly cooled, directional solidification of cooling the casting mold from the lower cooling liquid to the upper cooling liquid is formed, and the metal crystallization direction of the casting is controlled in a certain direction; and the bulging defect, the structure non-uniform defect, the puncture defect and the like of a traditional cooling process are avoided, and the casting performance and quality are effectively improved.

The invention discloses raw material crushing equipment for dry-type transformer silica powder production and processing, and relates to the technical field of crushing equipment.The raw material crushing equipment comprises a positioning ring, the inner wall of a shell is slidably connected with a limiting ring, the diameter of the inner side of the limiting ring and the diameter of the inner side of the positioning ring are increased from top to bottom, and the outer side of a rotating shaft is fixedly connected with a conical block; the raw material crushing equipment comprises a conical block and a limiting ring, the conical block is located in the limiting ring, a flow guide groove is formed in the outer side of the conical block, the diameter of the flow guide groove is gradually decreased from top to bottom, the diameter of the discharging position of the flow guide groove is increased, and a positioning groove is formed in the outer side of the conical block. The diameter of the discharge part of the diversion trench is large, the crushed materials are prevented from blocking the discharge gap and influencing the working efficiency, and meanwhile, the diameter is gradually reduced from top to bottom, so that the materials with different sizes can be guided to stay in the crushing cavity, the insufficient crushing of part of the materials is avoided, and the working efficiency is effectively improved.

The utility model provides a liquid injection device of an assembling machine, which comprises a working table, an index plate is arranged on the working table, and a plurality of capacitor clamps for placing capacitors are arranged on the index plate. A feeding mechanism, an element assembly mechanism, a liquid dispensing mechanism, an aluminum shell assembly mechanism, a rubber plug detection assembly and a discharging mechanism are sequentially arranged in the circumferential direction of the index plate. The liquid dispensing mechanism is used for positioning the capacitors and injecting electrolyte to each capacitor at the same time, the liquid dispensing mechanism is connected with the liquid storage tank through the liquid conveying mechanism, and the liquid storage tank is used for storing the electrolyte. According to the utility model, the electrolyte dripping mechanism is additionally arranged in the assembly machine, and the injection amount of the electrolyte can be accurately controlled through the electrolyte dripping mechanism, so that the problems of non-uniform distribution and residual electrolyte are avoided. Meanwhile, the liquid dispensing mechanism can reduce the usage amount of electrolyte, and the production cost and the environmental pollution risk are reduced.

The invention belongs to the technical field of selenium-rich blueberry planting, and particularly relates to a selenium-rich blueberry cultivation method which comprises the following steps: S1, selecting a proper variety according to climate conditions of a planting field; s2, selecting a place with loose soil, rich organic matters and good drainage for planting; s3, the selected soil is subjected to impurity removal, and meanwhile protection facilities are built around the soil; s4, planting pre-selected high-quality nursery stocks in the planting furrows or holes between autumn without drought in winter and early spring germination; the invention innovatively proposes that in the early stage, the middle stage and the later stage of selenium-rich blueberry growth, the selenium absorption of blueberry leaves is realized by accurately spraying an inorganic selenium solution. And the cost is low. Meanwhile, the selenium content of the blueberries is rapidly increased. According to the method, the problems of enrichment nonuniformity and low absorptivity possibly caused by soil selenium application are solved. Therefore, the selenium content of the selenium-rich blueberries is greatly increased, and the overall quality and yield of the blueberries are remarkably improved.

The application discloses a gallium oxide vertical device and a preparation method thereof. The gallium oxide vertical device comprises an epitaxial structure, a cathode and an anode matched with the epitaxial structure, the epitaxial structure comprises a heavily doped n-type Ga2O3 substrate, a lightly doped n-type Ga2O3 drift region, an interlayer and a p-type nitride epitaxial layer which are sequentially stacked, the lightly doped n-type Ga2O3 drift region, the interlayer and the p-type nitride epitaxial layer form a p-i-n structure, the cathode forms an ohmic contact with the heavily doped n-type Ga2O3 substrate, and the anode forms an ohmic contact with the p-type nitride epitaxial layer, wherein the material of the interlayer is an Al-containing compound, and the surface layer region of the lightly doped n-type Ga2O3 drift region close to the interlayer also has Al elements, the Al elements are diffused into the lightly doped n-type Ga2O3 drift region in the bonding process under high pressure.

The invention discloses welding equipment for part machining, and relates to the technical field of mechanical part welding, the welding equipment comprises a machining table and further comprises a clamping device, a placing frame is fixedly mounted at the top of the machining table, a placing hole is formed in the top of the placing frame, a welding device is arranged in the placing hole, a supporting groove is formed in the top of the machining table, and a clamping device is arranged in the supporting groove. A supporting rod is fixedly installed on the inner wall of the supporting groove, a displacement device is slidably installed on the circumferential face of the supporting rod, a supporting frame is fixedly installed on the top of the machining table, a supporting plate is fixedly installed on the surface of the displacement device, and the two cambered surface plates move oppositely to make contact with the inner wall of the tubular workpiece and extrude and fix the inner wall of the tubular workpiece. The inner wall of the tubular workpiece is fixed, so that the stability of the position of the tubular workpiece in the welding process can be ensured, and the problem of weld joint deviation or non-uniform quality caused by the unstable position of the tubular workpiece in the welding process can be solved.

This invention provides a battery activator and its preparation method, an activation film, a negative electrode, a battery, a battery pack, and an electrical device. The battery activator includes a shell and a slow-release material encapsulated within the shell. The slow-release material includes additives required for forming an SEI film. The shell includes a first polymer layer adjacent to the slow-release material and a second polymer layer away from the slow-release material. The first polymer layer includes a plurality of first micropores, and the second polymer layer includes a plurality of second micropores. The second polymer layer includes a cross-linked polymer formed by cross-linking C-C unsaturated polymers. The pore size of the first micropores is not greater than 0.2 μm, and the pore size of the second micropores is not less than 0.5 μm. The battery activator of this invention can continuously provide the additives required for forming an SEI film in the battery cell, thereby ensuring the capacity utilization and cycle stability of the battery cell.

The utility model relates to the technical field of printing ink processing, in particular to a UV printing ink heating device. The UV printing ink heating device provided by the utility model is high in heating efficiency, convenient to clean and simple to operate. A UV printing ink heating device comprises a rod base, a printing ink bin, a motor, a belt, stirring rods and the like, the printing ink bin is connected to the upper portion of the rod base, the motor is connected to the left portion of the printing ink bin, the three stirring rods are rotationally connected into the printing ink bin, the left portions of the stirring rods are all connected with transmission wheels, and the transmission wheels are connected with the belt. And the belt is wound between the transmission wheels. The belt and the transmission wheel rotate to further drive the stirring rods on the front side and the rear side to rotate, the stirring rods stir ink, so that solvents and solid components in the ink are fully mixed, the ink is prevented from being precipitated and solidified unevenly, it is guaranteed that the ink keeps good fluidity and printing performance in the heating process, the ink bin is convenient to clean, and the printing efficiency is improved. The use degree of the ink is improved, and ink waste is prevented.

The utility model relates to the related technical field of biscuit processing machines, and one embodiment of the utility model provides a multifunctional integrated biscuit processing machine which comprises a base and a stirring container, the stirring container is arranged on the base, a moving table is arranged on the base, a driving motor is arranged on one side of the base, and a connecting moving assembly is arranged between the base and the moving table. The telescopic air cylinder is fixed to the base, the stable stirring assembly is arranged on the base and the telescopic air cylinder, the connecting and moving assembly comprises a connecting base, the connecting base is arranged on the surface of the moving table, the stirring container is installed in the connecting base, a control motor is installed in the moving table, and the output end of the control motor is connected with the stirring container. By means of the technical scheme, the technical problems that in the prior art, vibration is prone to being generated in the stirring process, stability is poor, and cleaning is inconvenient are solved.

According to the grinding disc and the grinding device, at least one grinding disc is assembled in the grinding device provided with a power source, each grinding disc comprises a connecting part and at least two dispersing parts, the connecting part is in transmission connection with the power source, and the dispersing parts are fixedly connected with the connecting part and distributed in the circumferential direction of the connecting part. A dispersing space is defined by the opposite side faces of every two adjacent dispersing parts and the circumferential side face of the connecting part, each dispersing part is provided with a movement track rotating in the circumferential direction of the connecting part, and each dispersing space is used for transferring the position where grinding materials in the grinding device are located. The dispersion spaces provide accommodating positions for grinding materials in the grinding device, the grinding disc is driven to rotate along with the power source, each dispersion space also rotates, part of the grinding materials are accommodated in the dispersion spaces, and the grinding materials are driven to be dispersed in the grinding cavity; the problems of non-uniform abrasion and poor machining effect caused by excessive concentration of grinding materials in a specific area are solved, and the grinding uniformity and machining stability of the grinding device can be improved.

The present invention relates to the field of precision polishing, and in particular to an intelligent anti-damage precision polishing brush system and method. It includes: scanning and collecting height data of each contact point on the surface to be polished, calculating the average height of the surface to be polished, and calculating the overall roughness and local roughness of the surface to be polished; using an intelligent polishing force distribution algorithm to calculate the local polishing force, and using a contact time dynamic control algorithm to dynamically adjust the polishing time of each contact point during the polishing process; using a polishing brush motion trajectory optimization algorithm to optimize the polishing brush motion trajectory; using a comprehensive damage assessment algorithm to calculate the comprehensive damage degree, and deciding whether to end the polishing process based on the judgment of the comprehensive damage degree and the maximum damage threshold and the roughness difference. It solves the technical problem that in traditional polishing technology, only the overall roughness is relied on for surface quality assessment, and the difference in local microscopic features of the surface cannot be captured, resulting in the inability to accurately identify defects or uneven areas.

The invention discloses a road sweeper fluted disc meshing transmission front wheel with a nitrogen damping function, and relates to the technical field of vehicle engineering, the road sweeper fluted disc meshing transmission front wheel comprises a front fork weldment, deep groove ball bearings III are mounted on the two sides of the front fork weldment, and crank weldments are connected to the outer sides of the deep groove ball bearings III in a sleeving manner; nitrogen buffer shock-proof modules are installed at the bottom of the front fork weldment and the top of the crank weldment and used for reducing shock of the sweeper in the running process. The nitrogen buffer shock-proof module comprises spring seats installed at the bottom of the front fork weldment and the top of the crank weldment, and a nitrogen shock absorber is installed between the lower set of spring seats and the upper set of spring seats. Through the nitrogen buffering and shock-absorbing module, the problems that the vehicle is difficult to control and the sweeping operation quality is affected due to bumpy road surfaces can be solved, and the continuity and high efficiency of sweeping operation are guaranteed.

This utility model belongs to the technical field of drip irrigation tape production equipment. Specifically, it discloses a raw material mixing device for drip irrigation tape production. The bottom of the screening box is connected to the screening box through a first discharge port. The top of the screening box is provided with several inlets. A vibrating screen is inclinedly arranged in the upper part of the inner part and a U-shaped filter tank is fixedly connected in the lower part. An agitator is rotatably connected in the U-shaped filter tank. A drive shaft is rotatably connected in the mixing tank. A conical material distribution plate is fixedly connected in the upper part of the drive shaft, an agitator blade is fixedly connected in the middle part, and an inclined scraper is fixedly connected in the lower part through a connecting rod. A second discharge port is opened at the bottom of the mixing tank. By setting up a screening box, this utility model can select large particles and lumpy raw materials, avoid clogging of the discharge pipe, and make the mixing more uniform.

The invention aims at providing surveying equipment for hydrogeological survey, and relates to the technical field of measuring equipment, the surveying equipment comprises an electrode bar assembly, the electrode bar assembly comprises a pole, a pole cap and a drilling rod, and the electrode bar assembly is used for being connected with soil and measuring the resistivity of the soil; the driving assembly comprises a battery pack, a threaded sleeve, a shaft sleeve and a motor and is used for driving the electrode bar assembly to insert underground; the compaction assembly comprises a pressing rod, a first pressing plate and a second pressing plate, and it can be guaranteed that soil is attached to the electrode bar assembly. And the straightening assembly comprises a third mounting plate, a laser range finder, a measuring plate, a lens and a developing plate, plays an auxiliary role in insertion of the electrode bar assembly, ensures that the electrode bar assembly is linearly distributed, and solves the problems that the measurement position is deviated and the accuracy and the reliability of measurement data are influenced due to the fact that the electrode bar is easily inclined when being manually inserted in the prior art.

The utility model relates to welding equipment technical field, concretely relates to a kind of intelligent gantry submerged arc automatic welding machine, it includes: piece platform, top is equipped with multiple piece grooves along length direction, and both sides are equipped with machine tool track respectively;Welding machine tool, welding machine tool is transversely placed above piece platform, and two ends are respectively equipped with with machine tool track cooperation walking mechanism, welding machine tool top is respectively equipped with welding machine power supply corresponding each piece groove;Movable crossbeam, movable crossbeam is horizontally arranged in welding machine tool middle part, and movable crossbeam is equipped with with each piece groove corresponding cross slide;Telescopic arm, respectively with each cross slide corresponding each cross slide connection, bottom end is respectively equipped with welding torch, welding torch is connected with corresponding welding machine power supply;Controller, controller is set in one side of welding machine tool, and walking mechanism, telescopic arm, welding machine power supply and welding torch are respectively electrically connected with controller.The utility model is integrated, and automation design has significantly improved the efficiency and quality of I-shaped steel structure welding.