46results about How to "Avoid pressure loss" patented technology

The application discloses a soil and water loss prevention and control interception device, and belongs to the field of soil and water loss prevention and control.The interception device comprises an anchor mechanism, an interception net and a gasket.The anchor mechanism is buried in soil, which can improve the anti-aging, anti-corrosion and anti-wear performance, avoid damage of components caused by natural environment erosion in long-term outdoor use, prolong the service life, reduce the maintenance and replacement cost, enhance the fixing effect of the anchor mechanism on the interception net, provide stronger pulling force for the spiral anchor, prevent the interception net from shifting, guarantee the interception reliability of the slope main body soil and water loss, improve the installation and dismounting convenience of the inner hexagonal groove, and avoid damage of the interception net caused by the gasket.

This utility model provides a motor lifting base, including a base plate and a top plate. A translation bracket is slidably connected to the top plate, and a support foot is fixedly connected to the top of the translation bracket. The support foot is used to install motor components. Translation drive components are connected to both sides of the translation bracket via screws and nuts. An adjusting rod one is rotatably connected to one side of the translation bracket via an extension rod, and an adjusting rod two is rotatably connected to the top of the base plate. The inner wall of adjusting rod one is slidably connected to the outside of adjusting rod two. The drive motor drives the synchronous component to drive the adjusting screws on both sides, realizing the synchronous and stable movement of the translation bracket. This facilitates the formation of an open installation platform in confined spaces. At the same time, adjusting rod one and adjusting rod two adopt a slanted platform compression and spring reset structure. A linear motor drives the compression slanted platform to push the positioning pin into the positioning hole, realizing rapid locking of length and angle, enhancing lateral support strength and improving adjustment efficiency, and avoiding damage to the bracket structure during motor installation.

The utility model belongs to motor, fan manufacturing technical field, concretely for coil motor pin and whole board PCBA automatic crest soldering, cutting device, including first rack, the upper side of first rack is fixed with whole board combination carrier, the upper side of first rack is fixed with welding finished product transfer horizontal movement module group in the upper end of whole board combination carrier, the present application improves traditional solid tin wire and synchronous soldering mode of electric soldering iron, uses liquid tin furnace crest spraying type soldering, ensures product soldering and so on soldering leakage, cold welding, false welding and other defect problems, special carrier design, whole board PCBA and stator enter line positioning combination, add spring buckle force positioning again, and the assembly product positioning is firm, and the quality risk caused by the unrealized combination of spare parts will not appear.

The application discloses a kind of inductor full-automatic production device, including rack, the shell conveying assembly for conveying is equipped on the rack, along the direction of movement of the conveying assembly, the capacitor loading assembly for loading capacitor band is sequentially equipped on the rack, the resistance loading assembly for loading resistance band and the IC band loading assembly for loading IC band are sequentially equipped on the rack, the welding assembly for welding the capacitor band, resistance band and IC band on the shell is further equipped on the rack.The beneficial effects of the application mainly include:high degree of automation, realize full-automatic capacitor, resistance and IC band cutting bending forming and welding, without manual operation throughout, so as to improve processing efficiency when mass production, at the same time, the technical effects of reducing labor cost, processing cost and labor intensity can make enterprises effectively utilize human resources, and collection is convenient.

This utility model discloses a clamping and rotating module for cosmetic appearance inspection, relating to the field of cosmetic appearance inspection technology. It includes a support plate and a moving assembly. A support frame is mounted on one side of the support plate, and the moving assembly is located on one side of the support plate. The moving assembly includes a first motor, a gearbox, a forward and reverse threaded screw, a first slide, and a second slide. The first motor is mounted on one side of the support frame, and the output shaft of the first motor is connected to the gearbox. The output end of the gearbox is connected to the forward and reverse threaded screw. Through the moving assembly, when an external robotic arm places an open cosmetic bottle upside down between the first and second slides, the first motor drives the forward and reverse threaded screw to rotate via the gearbox. At this time, the support frame restricts the rotation direction of the first and second slides, allowing the upper and lower clamps to move centrally, thereby automatically clamping the cosmetic bottle through the pressure head and support block.

The utility model discloses a five-pointed star type high-temperature-resistant hydrogen sulfide-resistant screw pump sealing impact device, the main body structure of the five-pointed star type high-temperature-resistant hydrogen sulfide-resistant screw pump sealing impact device is a lower sealing occlusion ring and an upper sealing occlusion ring which are occluded up and down, and the five-pointed star type high-temperature-resistant hydrogen sulfide-resistant screw pump sealing impact device comprises the lower sealing occlusion ring and the upper sealing occlusion ring, a pentagram-shaped occlusion groove is formed in the bottom surface of the upper sealing occlusion ring, the pentagram-shaped occlusion groove and the pentagram-shaped occlusion convex teeth are mutually occluded and clamped, and newly synthesized difluoro vulcanized phenyl silicone rubber is adopted as a main body material. Through the arrangement of the lower sealing occlusion ring and the upper sealing occlusion ring, close fit of the lower sealing occlusion ring and the upper sealing occlusion ring can be achieved, the occlusion surface is of a five-pointed star-shaped three-dimensional structure distributed in the radial direction, the structure has good impact resistance and scouring resistance, the overall structure is simple in process, installation is convenient, the service life is long, and the service life is long. The stable sealing performance of the sealing device in a high-temperature and hydrogen sulfide environment is ensured, and medium leakage is prevented.

The utility model provides a square cell sealing nail welding with anchor clamps, including bottom plate, and set up in the bottom plate's benchmark fixed plate, floating fixed plate, intermediate fixed plate, long side fixed plate and cushion block, wherein: benchmark fixed plate with floating fixed plate opposite setting, intermediate fixed plate with long side fixed plate opposite setting, floating fixed plate at least partial can be close to or far from benchmark fixed plate, long side fixed plate at least partial can be close to or far from intermediate fixed plate, cushion block is used for supporting the battery, and the cushion block is between intermediate fixed plate and long side fixed plate, first guide shaft is configured on the cushion block, first guide shaft with bottom plate sliding connection is established, and first buffer spring is configured between the cushion block and bottom plate. The utility model discloses cushion block floating assembly, can avoid welding plate and battery hard contact, and can eliminate the longitudinal assembly error of battery simultaneously.

The utility model discloses a biomass circulating fluidized bed boiler return feeder adjusting device which comprises a return feeder body, the return feeder body is composed of two air chamber parts with independent functions, each air chamber part comprises a fluidization air chamber and a return air chamber, and a discharge inclined pipe of the return feeder body is fixedly connected with a circulating fluidized bed boiler. A vertical pipe on the material returning device body is connected with a cyclone separator, the material returning device body comprises a driving adjusting structure, the driving adjusting structure comprises a fluidization air pipe and a material returning air pipe which are connected with the fluidization air chamber and the material returning air chamber respectively, and the driving adjusting structure further comprises an independent side blowing pipe bypass. The independent side blowing pipe bypass is fed into the material returning device body from the side face of the fluidization air pipe, and the fluidization air pipe and the material returning air pipe are led into the material returning device body from the bottom of the material returning device body and are respectively connected with an external fan.

This utility model provides an automatic positioning and suction bag device for large roll paper packaging bags, relating to the field of packaging bag suction technology. It includes a base plate, a support seat mounted on the top of the base plate, a lifting mechanism on the inner side of the support seat, a first mounting frame mounted above the support seat, a feeding chamber mounted above the first mounting frame, a pressure plate mounted on the inner side of the feeding chamber, and a discharging mechanism below the first suction cup and connecting frame. The device uses a suction bag assembly to replace traditional mechanical gripping. The first and second suction cups use negative pressure to suction the edge of the packaging bag opening, avoiding bag damage or detachment caused by improper gripping force, significantly reducing the packaging bag breakage rate. Simultaneously, the combined action of a laser sensor and a second hydraulic cylinder ensures minimal deviation in the bag picking position, guaranteeing precise alignment of the bag opening with the large roll paper conveying path, greatly reducing the bag-fitting defect rate and subsequent sealing leakage problems.

This utility model discloses a fully automatic riveting and dispensing device, including a frame with a carrier for supporting the workpiece on the frame. A movable block, movable vertically relative to the carrier, is located directly above the carrier. A column is fixed to the bottom of the movable block, and a magnet is fixed to the bottom of the column. The bottom of the magnet has a receiving groove adapted to the head of the rivet. A through groove is formed on the column, one end of which connects to an inlet on the movable block, and the other end connects to an outlet on the magnet. The diameter of the outlet is smaller than the diameter of the rivet head. The advantages of this utility model are mainly reflected in its ingenious design. The magnet attracts the rivet, preventing accidental drop during riveting and improving riveting accuracy. After riveting, the workpiece is dispensed with glue through the inlet, through groove, and outlet. This dispensing method is simple and convenient, eliminating the need to transfer the workpiece and improving work efficiency.

The invention belongs to the technical field of blast furnace blast, and relates to blast furnace uniform blast equipment and method for changing the inclination angle of a hot air branch pipe. The hot air branch pipes are evenly distributed in the circumferential direction of the bustle pipe, meanwhile, the inclined included angle alpha is formed between the axis of the straight pipe section of each hot air branch pipe and the radial plane of the bustle pipe, and due to the design, right-angle turning in the hot air flowing process is structurally reduced, pressure loss and vortex dissipation caused by the right-angle turning are reduced, and the heat exchange efficiency is improved. The main guide direction of the original tangential flow speed of hot air in the hot air bustle pipe is maintained, it is guaranteed that the air quantity entering all the branch pipes is basically consistent, the air quantity distribution uniformity of all the tuyeres of the blast furnace is remarkably improved, and good flow stability and adaptability are achieved. Numerical simulation verifies that the comprehensive blast uniformity is optimal under the working condition that the hot air branch pipe is inclined by 75 degrees. The blast furnace can effectively improve blast uniformity, reduce airflow deviation and energy loss and improve the stability and smelting efficiency of the blast furnace, and has good industrial application value.

The utility model relates to antenna technology field of attaching, and specifically disclose a kind of antenna automatic attaching fixture, antenna automatic attaching fixture includes pedestal, first telescopic mechanism, floating component, first shaping block, second telescopic mechanism and second shaping block, the bottom of pedestal is provided with first suction hole, first telescopic mechanism is located in pedestal, first telescopic mechanism is connected with floating component to make floating component movable arrangement in first direction, floating component is connected with first shaping block to make first shaping block movable arrangement in second direction, first direction is perpendicular to second direction, second telescopic mechanism is located in pedestal, and second telescopic mechanism is offset setting relative to first telescopic mechanism, second telescopic mechanism is connected with second shaping block to make second shaping block movable arrangement in third direction, the bottom of second shaping block is provided with second suction hole, third direction and first direction and second direction intersect;The above scheme can realize the constraint and extension of antenna three-dimensional structure, so that antenna has the characteristics of good consistency of attaching precision and high attaching operation efficiency when attaching to mobile phone shell.

The utility model relates to rock wool production and processing equipment technical field, concretely refers to a kind of rock wool cross cutting equipment, including workbench, cutting saw, drive mechanism, lifting mechanism and limiting mechanism;Workbench top is fixedly connected with mounting frame, and slidingly set up movable box in mounting frame;Cutting saw is movably arranged in mounting frame, and the top of cutting saw is slidably connected with the bottom of movable box;Drive mechanism is set on movable box, and one end of drive mechanism is connected with cutting saw for driving cutting saw movement;Lifting mechanism is set on mounting frame;Limiting mechanism is set on movable box, and limiting mechanism is provided with two groups, and two groups of limiting mechanism are located at the two sides of cutting saw respectively.The utility model is set between drive mechanism and lifting mechanism by cooperation, and driving motor works drives cutting saw edge to move downward reciprocating motion, realizes the cutting operation of saw blade to rock wool, optimizes the structure of equipment, reduces the production cost and the maintenance cost of equipment.

This utility model discloses a slide drying plate for improving loading safety, belonging to the technical field of pathological laboratory equipment. It includes: a slide drying plate body, the top surface of which is a slide placement surface and has at least one row of slide drying slots; a baffle separating adjacent rows of slide drying slots; a flexible pad disposed in the slide drying slots, its shape matching the slide drying slots and the inner walls of both fitting together; each side of the flexible pad has protruding limiting posts on its inner wall, which, when a slide is placed in the slide drying slot, utilizes the elastic deformation of the limiting posts to achieve an "interference fit" clamping of the slide, effectively preventing the slide from slipping out or falling off during handling, tilting, or vibration, thus improving loading safety; a recessed slide retrieval slot is provided on the side of the baffle facing the slide drying slot, located at the end of the slide drying slot and connected to it, allowing the operator to insert their fingers to retrieve the slide clamped between the limiting posts, solving the problem of "difficult to remove" after secure clamping.

The lithium battery pack terminal comprises a first line bank, a second line bank, a connecting assembly, a protection assembly and a clamping seat assembly, the first line bank is electrically connected to the positive electrode of a group of lithium batteries, and the second line bank is electrically connected to the negative electrode of the group of lithium batteries; the connecting assembly is used for connecting positive and negative electrodes of adjacent row groups of lithium batteries, the protection assembly is arranged outside the lithium batteries, the protection assembly is used for shielding a joint of the connecting assembly, the clamping seat assembly is arranged outside the lithium batteries, and the clamping seat assembly is also used for clamping and limiting the protection assembly. According to the utility model, the lithium battery, the first line bank, the second line bank, the connecting assembly and the clamping seat assembly are used in a matched manner, and the binding cap can be clamped outside the screw cap of the connecting assembly and can limit the protective frame, so that the protective frame and the protective pad can protect the side of the lithium battery, and the service life of the lithium battery is prolonged. And the lithium battery is prevented from being damaged by pressure at the bolt joint of the connecting assembly.

The invention discloses a liquid ammonia and aviation kerosene dual-fuel hybrid turbofan engine combined with a fuel cell for power generation, which belongs to the technical field of aero-engines and comprises a traditional turbofan core machine, a liquid ammonia fuel subsystem, an aviation kerosene fuel subsystem and a fuel cell power supply subsystem, and the liquid ammonia fuel subsystem, the aviation kerosene fuel subsystem and the fuel cell power supply subsystem are integrated. Liquid ammonia is conveyed to the liquid ammonia preheater through the fuel pump, absorbs heat of air from an outlet of the low-pressure compressor and is vaporized, and cooling of air at an inlet of the high-pressure compressor is achieved; vaporized ammonia gas enters an ammonia gas decomposition hydrogen production device which annularly sleeves the outer wall of the exhaust nozzle, and is catalytically decomposed into hydrogen gas by utilizing waste heat of the exhaust nozzle; high-temperature mixed gas generated by decomposition enters an aviation fuel preheater for preheating aviation fuel and then is conveyed to an anode of the proton exchange membrane fuel cell; and meanwhile, part of the air cooled by the liquid ammonia preheater is conveyed to the cathode of the fuel cell through a pressure reducing valve. The thrust loss caused by extracting power from the main shaft of the engine is avoided, and the energy comprehensive utilization efficiency of the whole engine is remarkably improved.

The utility model relates to the technical field of battery assembly tools, in particular to a multi-module assembly positioning device for a battery pack, which comprises an assembly panel, a left support frame and a right support frame are fixedly mounted on the upper surface of a plate body at the rear end of the assembly panel, and a pressing component is arranged on the two support frames. The downward pressing assembly comprises first air cylinders fixedly installed on a top plate body of the supporting frame, the tail ends of telescopic shafts of the two first air cylinders are detachably connected with a guide plate, downward pressing beams are fixedly installed on the front side faces of plate bodies at the two ends of the guide plate, the guide plate is slidably connected with a plurality of rectangular sleeves, and positioning plates are fixedly installed on the front side faces of the rectangular sleeves. A U-shaped frame is fixedly installed on the top face of the guide plate, a limiting assembly is arranged on the U-shaped frame and comprises a second air cylinder fixedly installed on a top plate body of the U-shaped frame, and a downward pressing limiting plate is arranged at the tail end of a telescopic shaft of the second air cylinder. According to the utility model, the size adjustment and positioning operation are convenient, and the use is convenient.

The invention belongs to the technical field of machining clamps, and particularly relates to a machining clamp for an outboard engine crankcase, which comprises a bottom plate and a support arranged on the bottom plate, the support is provided with a placing plate for placing the crankcase, and the placing plate is provided with a sliding rod along the vertical direction in a sliding manner; the upper end of the sliding rod extends out of the containing plate to be hinged to a pressing block, the lower end of the sliding rod extends out of the containing plate to be connected with a linkage plate, a pressing plate used for being arranged on the linkage plate in a pressing mode is arranged on the bottom plate, the crankcase is placed on the containing plate, the sliding rod is moved upwards, the pressing block extends out of a piston hole of the crankcase and then extends into the crankcase from a crankshaft hole of the crankcase to be adjusted to be in a horizontal state, and the linkage plate is arranged on the linkage plate. The pressing plate presses the linkage plate to drive the pressing block to be pressed on the upper surface of the piston hole. A coating on the outer surface of the crankcase can be effectively prevented from being damaged by pressing or scratched, the appearance quality of a product is good, and the service life is long.

The utility model relates to battery manufacturing field especially relates to a dust collector of battery heat insulation sheet, including first mounting seat, first mounting seat right part both sides are all set up first mounting panel, and the front side of first mounting panel front side is provided with two drive motors, and first mounting seat left part is provided with conveying assembly, and the drive motor of left side is used for driving conveying assembly, and two auxiliary rollers are rotatably connected between first mounting panel, and two first sticky rollers are rotatably connected between first mounting panel, and the drive motor of right side is connected with one of first sticky roller. The utility model discloses through the cooperation of flow guide mechanism and flow guide roller and ensures material transmission stability, avoids the phenomenon of deviation, and two -stage dust -sticking system adopts the combination of rotary first sticky roller and elastic second sticky roller of pressing, realizes efficient comprehensive dust removal and avoids material pressure loss, and the overall device has the remarkable advantages that dust removal effect is good, adaptability is wide, operation is safe, and maintenance is simple.

This invention discloses a mother-daughter type drainage vehicle pipeline synchronous retrieval system, method, and mother-daughter type drainage vehicle. The system includes a hydraulic winch device, a hydraulic drive device, and a control device. The winch drive mechanism of the hydraulic winch device is mounted on the mother vehicle and has a hydraulic pipeline wound around it. The hydraulic valve group of the mother vehicle of the hydraulic drive device can drive the winch drive mechanism to unwind or wind up the hydraulic pipeline. The hydraulic valve group of the daughter vehicle is connected to the daughter vehicle drive mechanism and the hydraulic pipeline and drives the daughter vehicle forward or backward. Upon receiving a synchronous retrieval confirmation command, the control device controls the mother vehicle hydraulic valve group to drive the winch drive mechanism to wind up the hydraulic pipeline and controls the daughter vehicle hydraulic valve group to drive the daughter vehicle backward. The winding speed of the hydraulic pipeline is greater than the backward speed of the daughter vehicle, so that the hydraulic pipeline is always in a taut state during the synchronous retrieval process, which significantly improves the retrieval efficiency of the hydraulic pipeline and avoids the phenomenon of the hydraulic pipeline being damaged by the daughter vehicle.

The application discloses a kind of single-path hydraulic rotary joints of multiple oil chambers, comprising: swing hydraulic cylinder, oil chamber connecting assembly, servo valve, valve guide, magnetic scale, first adapter plate, first support plate, second adapter plate, second support plate;The single-path hydraulic rotary joint of multiple oil chambers described in the application is characterized in that the output shaft hits axial blind hole and radial through-hole reduces the inertia of working shaft while forming oil circuit with auxiliary oil cylinder, so that the oil pipe and the support plate are relatively static, avoiding the influence of random swing of oil pipe on movement and interference, simplifying the oil pipe in multi-working-condition working space, avoiding the influence of excessive or excessive length of oil pipe on joint movement to improve efficiency, multiple dynamic and static sealing structure design ensures the sealing of multiple oil cylinders, with the advantages of simple structure, good sealing, high efficiency, long service life, high safety, etc.

This invention discloses a laser cutting machine for precision workpiece machining, capable of automatically positioning the workpiece. It relates to the field of precision workpiece machining technology and includes a worktable and a positioning assembly. A support roller is rotatably connected to the center of the worktable, and a waste bin is located below the worktable. A three-axis slide module is installed at the rear of the worktable, and the output end of the three-axis slide module is connected to a laser cutting head. During positioning, the drive motor first drives the two slide blocks to move synchronously towards each other via positive and negative threaded screws. A buffer spring pushes the roller frame and its rollers to contact the workpiece. The buffer spring, with its low elastic coefficient, ensures a gentle contact force. After initial positioning, the slide blocks continue to move, compressing the buffer spring. The drive slotted plate, through rollers, drives the positioning seat and positioning plate to complete the final rigid clamping. This process of first guiding and then locking can complete high-precision automatic centering within seconds, resulting in high positioning accuracy.

This invention proposes a pressure-compensated mineral processing three-product heavy medium cyclone separator, relating to the field of ore separation. The separator includes: a first-stage cyclone separator with a first feed inlet, a first cyclone chamber, a first overflow outlet, and a first underflow outlet; the first cyclone chamber includes a first cylindrical section and a first conical section connected together, the larger end of the first conical section connected to the first cylindrical section, the first underflow outlet located at the smaller end of the first conical section, and the first feed inlet connected to the first cylindrical section; a second-stage cyclone separator with a second feed inlet, a second cyclone chamber, a second overflow outlet, and a second underflow outlet, the second feed inlet connected to the first underflow outlet; the second cyclone chamber includes a second cylindrical section and a second conical section connected together, the larger end of the second conical section connected to the second cylindrical section, and the second feed inlet connected to the second cylindrical section; and a first pressurization channel connected to the first cylindrical section. This application solves the core technical defects of traditional equipment, such as low and fluctuating self-weight feeding pressure and insufficient and unstable centrifugal force field.

This invention relates to the field of micro-power generation technology, and more particularly to an integrated micro permanent magnet direct-drive generator. The generator includes: a duct housing, a turbine, a permanent magnet power generation unit, a flow field monitoring module, and a control unit. This invention designs the inner wall of the duct as a composite curved surface with a specific helical waveform and axial contraction, precisely matching its key shape parameters with the aerodynamic design point of the turbine. This allows the airflow to be accelerated by the Venturi effect as it passes through the duct, and further endowed with tangential momentum consistent with the turbine's rotation direction by a controllable helical bulge structure. Simultaneously, based on real-time monitoring of the outlet swirl intensity and load closed-loop control, the optimal aerodynamic matching state is dynamically maintained. Furthermore, monitoring of characteristic pressure distribution enables early warning of duct performance degradation, effectively solving the problem of reduced power generation efficiency caused by mutual interference of airflows due to the use of multiple parallel independent flow guiding mechanisms.

The invention relates to the field of explosive processing, in particular to an optimal design of a step explosion assembly in a mounting and processing link. According to the installation equipment suitable for the step explosion assembly comprising the anti-side pieces, the push block mechanism capable of moving in the radial direction is arranged, the anti-side pieces are actively embraced and restrained from the side direction, accurate guiding and supporting are formed, and therefore the restrained explosion body is stably pressed into a casting pipe. Hard friction between the anti-side pieces and the inner wall of the casting pipe is avoided, and scratches and deformation of the surfaces of the anti-side pieces and the inner wall of the casting pipe are fundamentally eliminated.

This utility model provides a welding device for steel scaffolding platforms, relating to the technical field of welding devices. The device includes a welding main unit with a handle fixedly connected to its top. Symmetrically distributed heat sinks are fixedly installed on both side walls of the welding main unit. A grounding cable and a welding torch cable are symmetrically arranged on one side wall of the welding main unit, both electrically connected to the internal circuitry. A control panel and adjustment knob are embedded in the front of the welding main unit, electrically connected to the control panel. A set of cable assemblies is also fixedly installed on each of the two outer side walls of the welding main unit. This utility model effectively solves the problem of storing the grounding cable and welding torch cable by installing cable assemblies on both sides of the welding main unit. The winding rod allows for orderly winding of the cables, preventing them from tangling and ensuring safety and neatness during use.

This invention provides a geostress testing device and method based on sleeve-induced fracturing, belonging to the field of rock mass engineering monitoring technology. The device includes a sleeve fixing frame, a piezoelectric ceramic acoustic transducer, a shielding wire, sleeve rubber, an annular plug, a hose, a sleeve support, a mounting rod, an angle disc, a high-pressure hand pump, an oscilloscope, and an acoustic drive board. Waveform signals are emitted through the acoustic drive board and one piezoelectric ceramic acoustic transducer, while the other transducers receive the waveform signals. Pressure is slowly increased by the high-pressure hand pump, and the pressure gauge value and the waveform information displayed on the oscilloscope are recorded in real time. By analyzing the changes in the amplitude parameters of the transducer waveform information and the pressure gauge value, the initial fracturing pressure and the fracturing re-tension pressure of the rock mass are determined. After fracturing, the changes in the amplitude parameters of the waveform information are measured again by rotating the device by a certain angle each time. The location of the fracturing can be determined based on the received waveform signals at different angles, and the presence or absence of rock mass fracturing can be determined by the changes in the waveform signal amplitude.

The utility model relates to cutting device technical field, and disclose a kind of cutting device for bar wire rod rolling processing, including workbench, workbench bottom is fixedly connected with support leg, and support leg bottom is provided with support footing;Workbench top side is provided with first telescopic link, and the end of first telescopic link is fixedly installed with T plate, and T plate is threadedly covered with bolt, and the bottom end of bolt is fixedly installed with resist pressure block, and the top surface of workbench is fixedly installed with U-shaped frame.The cutting device for bar wire rod rolling processing is stably supported by the threaded connection of support leg and support footing, and the stability is further enhanced by anti-skid pattern;The resist pressure block of rubber material can avoid workpiece damage when fixing bar wire rod;Spring in buffer assembly can buffer impact force when cutting, and the cutting knife of high-strength alloy blade ensures cutting effect and durability;Knob is convenient for operating and fixing, and cutting knife moves smoothly driven by air cylinder, and the stability, safety and efficiency of cutting operation are improved as a whole.