667results about How to "Reduce distortion" patented technology

The invention belongs to the technical field of talc, and provides a method for detecting fluorescent substances in talc raw ore, which comprises the following steps: S1, carrying out ball milling on the talc raw ore in a ball mill, sieving to obtain sieved powder, and adding deionized water into the sieved powder to obtain slurry; s2, adding the slurry into the mixture to enable the pH value of the slurry to be 5, stirring, and standing in a water bath for 2-3 hours to obtain a first precipitate; s3, adding a thiourea-ascorbic acid solution into the first precipitate to obtain a second precipitate; and S4, carrying out secondary ball milling on the second precipitate, and spreading the second precipitate in an enamel plate to detect whether the talc raw ore contains the fluorescent substances or not. The hydrochloric acid can dissolve quartz and mica to avoid generation of background fluorescence or quenching effect, and the nonionic surfactant polyethylene glycol can be adsorbed on the surface of the mineral to reduce interfacial tension, so that the hydrochloric acid is easier to infiltrate tiny pores, the pit defect caused by local over-corrosion is reduced, the pickling uniformity is improved, and the detection sensitivity is improved.

The utility model provides a kind of viscous damper mounting structure, including first mounting beam and second mounting beam, the first mounting beam is equipped with accommodating space, the inboard of accommodating space is equipped with viscous damper, the upper of second mounting beam is provided with first embedded part, the bottom of first embedded part is fixedly installed with fixed frame.The utility model is through the setting of first connecting rod, mounting sleeve, second connecting plate and connecting mechanism, when using, the cylinder barrel of viscous damper and fixed frame branch can be movably connected, the movable connection of both can also realize the movable connection of cylinder barrel of viscous damper and mounting beam, allow cylinder barrel to be multi-directional displacement with building structure in earthquake and not be restrained, while avoiding that cylinder barrel bears too large bending moment and torque, reduce the problem that cylinder barrel appears deformation or damage, to effectively guarantee the performance and durability of viscous damper.

The utility model discloses a corrugated case convenient to carry, including corrugated case body, the lower end fixed mounting of corrugated case body has supported device, the upper end of corrugated case body inserts and installs corrugated box lid. The utility model discloses a corrugated case convenient to carry, through still being provided with corrugated core in the corrugated case body, double -decked corrugated paperboard can provide double -decked support, and the compressive strength and the side pressure intensity not only are significantly higher than single corrugated paperboard, and double -decked structure also can reduce the deformation caused by humidity change, and further improve the use effect and service life of corrugated case, and the one side board on the corrugated box lid can be bent down, and the clamping block on the one side board can be inserted into the first slot and the second slot, avoid the corrugated case body when transporting external dust can enter its through the slot, in addition, through the pull -plate and raise the one side board, at this time, people can conveniently take up and carry the corrugated case body through the slot.

The application discloses a groove cutter for machining a turbocharger shell annular groove and a turbocharger shell, the groove cutter comprising a first cutter body, a second cutter body and a cutting edge. The stable clamping of the first cutter body lays a foundation for machining precision, avoiding machining errors caused by clamping deviation; the design of the chip removal angle A and the support angle B of the second cutter body not only solves the problem of chip removal, but also enhances the strength of the groove cutter, reduces cutting heat and groove cutter deformation; the cutting edge comprises a straight edge section and a semicircular edge, which controls the cutting contact area, reduces the cutting force and vibration, and protects the edge. The joint action of these designs not only makes the machining precision of the annular groove meet the assembly and use requirements of the shell, but also improves the service life of the groove cutter, reduces the number and time of tool replacement, reduces the machining cost, improves the overall machining efficiency, and fully meets the batch production requirements of the new energy automobile turbocharger shell.

This utility model discloses a self-locking intermediate tensioning device for installing bridge housing parts, relating to the technical field of workpiece processing auxiliary devices. It includes a worktable, fixed seats, a fixed frame, fixed plates, a tensioning mechanism, and a fixing mechanism. Two symmetrically distributed fixed seats are fixedly connected to the upper surface of the worktable, and a fixed frame is fixedly connected between the two fixed seats. Two symmetrically distributed fixed plates are fixedly connected to the inner end face of the fixed frame. The fixed plates are fixedly connected to the upper surface of the worktable, and a tensioning mechanism is provided between the two fixed plates. The tensioning mechanism includes a hydraulic cylinder, a wedge-shaped tensioning plate, a moving block, and a central tensioning plate. This utility model features a tensioning mechanism where the hydraulic cylinder drives the wedge-shaped tensioning plate. Through the guidance of the T-shaped groove and the T-shaped plate, the vertical movement is converted into the horizontal expansion of the moving block and the central tensioning plate, thereby applying an adjustable tensioning force to the inner hole of the workpiece. This effectively ensures the dimensional stability and accuracy of the workpiece during subsequent processing such as press-fitting.

The utility model discloses a reinforcing device for an underneath pass railway turnout zone. The reinforcing device comprises a supporting and splicing assembly, a bottom plate arranged on the supporting and splicing assembly, a lower guide beam installed on the top of the bottom plate and main lower beams symmetrically distributed. The utility model has the beneficial effects that through the supporting and splicing assembly, a stable foundation is provided for the whole device, and soil pressure and vehicle load transmitted from the side surface and the top can be effectively supported; the stability is further enhanced through structures such as a lower guide beam, a main lower beam, a guide beam stand column and a main beam stand column, and the shield top plate and all components work cooperatively, so that the complex stress condition of a railway turnout zone can be better dealt with; the steel structure sub-shield is combined with the reinforced concrete lattice, and the steel structure sub-shield and the reinforced concrete lattice are integrally poured with the frame main body, so that the overall strength and stability of the structure are greatly improved; the rigidity of the reinforced concrete lattice is increased, the reinforced concrete lattice and the frame body form a whole, large external loads can be borne, and the requirement for strict settlement control of a railway turnout zone is met.

This invention discloses a differential VGA signal decoding and display device, relating to the display field. It includes a signal input module, an ESD protection module, a differential receiving module, a synchronization separation module, an image decoding driver module, a display module, an audio processing module, and a control module. These modules are interconnected and work together to decode, process, and display differential VGA signals. This differential VGA signal decoding and display device solves the problems of short transmission distance, weak anti-interference capability, limited resolution, and high power consumption associated with traditional VGA interfaces. It also achieves full compatibility with traditional VGA devices, integrating audio processing, local playback, intelligent signal enhancement, and remote monitoring and management functions. It achieves reliable conversion from analog to differential signals, supports high-definition display, and has a transmission distance of up to 50 meters, while maintaining full compatibility with traditional VGA devices. This technology is particularly suitable for professional fields such as industrial automation and medical imaging, meeting the diverse display and intelligent operation and maintenance needs of professional scenarios.

This utility model relates to the technical field of flexible circuit board manufacturing and processing equipment, specifically to an integrated dual-purpose chip mounting and rolling mechanism, including a rolling assembly, a first driving component, and a support platform with mounting grooves. Under the action of the first driving component, the rolling assembly moves to align with the support platform, and the rolling assembly rolls a flexible heat sink along a preset trajectory on the surface of the support platform. A chip platform is detachably installed on the top of the support platform, and the chip platform cooperates with the rolling assembly to roll the chip onto the feed strip. The surface of the support platform is provided with a working area and a padding area. The padding area is located around the working area and is covered with flexible padding to support the flexible heat sink placed in the working area. This utility model provides a modular and detachable support platform and chip platform, which can be used in two ways: rolling chips and flexible heat sinks attached to feed strips. By setting mounting grooves, chip damage and deformation are reduced, and by setting flexible padding, deformation of the flexible heat sink is reduced, ensuring product quality.

This application provides a fixture and method for clamping and machining thin-walled welded parts, relating to the field of fixture and tooling technology. The fixture includes a base mechanism, a central positioning mechanism, an angular positioning structure, an auxiliary support mechanism, and a clamping mechanism. The base mechanism uses a disc and multiple circumferentially arranged elongated plates to form a support surface; the central positioning mechanism mates with the positioning inner hole of the part to achieve central positioning; the angular positioning structure mates with the angular hole of the part to achieve angular positioning; the auxiliary support mechanism is set for each lug to be machined, using V-shaped supports and lateral limiting components to provide auxiliary support and limit the lugs to be machined; the clamping mechanism clamps the part to the clamping reference surface. This solution can improve the clamping stability, positioning accuracy, and local rigidity during machining of thin-walled welded parts, reduce vibration and lateral displacement of the lugs to be machined, and reduce the risk of cracking at the weld joint.

The invention relates to the technical field of manufacturing and processing of marine turbochargers, in particular to a method and a device for processing a ring thrust bearing of a marine supercharger, which are characterized in that after a set of preparation process including rough turning, heat treatment, semi-finish turning and inner hole accurate grinding is adopted, a special taper mandrel for grinding is used for clamping the bearing, and the bearing is clamped by a conical mandrel for grinding; the taper mandrel for grinding has the precise taper of 1: 5000, high surface quality and rigid design matched with the length of a bearing, accurate grinding of all outer circles and end faces is completed through one-time clamping of double tips of a numerical control grinding machine, and online detection is achieved in cooperation with a special auxiliary detection tool. The problem that the form and position precision is difficult to guarantee due to clamping deformation and repeated positioning errors in traditional machining is effectively solved, and therefore high-precision (such as roundness, coaxiality and parallelism are in the micron level), low-deformation, efficient and stable machining is achieved at the same time in the manufacturing process of the large thin-wall annular thrust bearing.

This utility model discloses a hole-opening device for a double-sided aluminum substrate, applied in the field of hole-opening device technology. It includes a base plate, a support plate fixedly connected to the bottom of a hydraulic cylinder, a hole-opening assembly at the bottom of the support plate, a placement plate slidably connected to the top of the base plate, a clamping assembly at the top of the placement plate, a connecting plate welded to the rear side of the support, a drive gear fixedly connected to the output end of a second motor, and two rotating rods rotatably connected to the front side of the vertical surface of the connecting plate via bearings. Each of the two rotating rods has a driven gear meshing with the drive gear on its surface, and a fan fixedly connected to the other end of each of the two rotating rods. This utility model, by incorporating a second motor, drive gear, rotating rods, driven gear, and fan, can reduce the temperature of the hole-opening head during the hole-opening process, thereby reducing deformation of the double-sided aluminum substrate or aging of the insulation layer, and extending the service life of the double-sided aluminum substrate.

This invention proposes a chaotic speech encryption method based on a time-frequency dual-track system, belonging to the field of speech encryption technology. The method includes: preprocessing the original speech data to obtain a mono-channel filtered speech signal; extracting parameter features and calculating normalized speech energy as input to the chaotic system; generating a chaotic sequence and performing multi-step enhancement to obtain an enhanced key stream; generating a scrambling index after Fourier transforming the speech signal; scrambling and reshaping the real and imaginary components in the frequency domain and performing XOR diffusion; recombining the encrypted frequency domain matrix and inversely transforming it back to the time domain; and obtaining the final ciphertext through index permutation and fusion of speech feature parameters. This invention uses a frequency-domain dual-track scrambling-diffusion mechanism combined with an attractorless six-dimensional conservative hyperchaotic system to generate an enhanced key stream, thus avoiding speech distortion in time-domain encryption, triggering a global avalanche effect, and simultaneously improving the algorithm's resistance to various attacks, ensuring both the security of speech encryption and the fidelity of speech restoration.

The utility model relates to a wheel technology field, concretely relates to a detachable wheel, including tyre, the inner ring of tyre is equipped with wheel cover, and tyre and wheel cover outer circle seal setting form a plenum, and the inner ring of wheel cover is evenly arranged with countersunk mounting hole along the circumference, and wheel cover is equipped with detachable wheel hub, and detachable wheel hub includes wheel hub outer circle cooperation installation with the inner ring of wheel cover, and wheel hub outer circle is equipped with wheel hub hub core, and the between wheel hub outer circle and wheel hub hub core along the circular center radiation spreads apart a plurality of spoke, and the between two adjacent spokes is equipped with detachable assembly cooperation with countersunk mounting hole. Independent plenum, will not leak in the wheel cover and wheel hub dismounting process. Wheel hub is through detachable assembly and realizes detachable, when wheel hub outer circle, wheel hub hub core or spoke etc. component appears damage, need not to replace whole wheel, only need to dismount and replace damaged wheel hub part, dismount convenient, greatly shorten the maintenance cost and maintenance time short.

This invention provides a QPQ surface strengthening method for flexible and rigid wheels in harmonic reducers, comprising the following steps: after machining the flexible or rigid wheel, it is sequentially degreased, cleaned, dried, and preheated; the preheated flexible or rigid wheel is nitrided to form a nitrided layer on its surface; the surface of the flexible or rigid wheel is treated mechanically or by tumbling; the polished flexible or rigid wheel is placed in molten oxide salt for oxidation treatment to form an oxide layer on the surface of the nitrided layer; after the oxidized flexible or rigid wheel is air-cooled, it is immediately rinsed with clean water and dried with hot air, and then coated with anti-rust oil. Compared with the prior art, this invention uses low-temperature salt bath nitriding and oxidation treatment, the QPQ process is short, has fewer process steps and is easy to control, and the salt bath can be recycled. The surface hardness of the workpiece reaches 800-850 HV, and the wear rate is reduced by more than 70% compared with the traditional tempering process, significantly extending the service life of the workpiece.

Methods of manufacturing semiconductor devices, assemblies for use, and corresponding semiconductor devices are disclosed. A leadframe includes a pattern of electrically conductive structures with one or more sacrificial connection structures bridging between a pair of the electrically conductive structures. The sacrificial connection structure or structures are formed at one of a first surface and a second surface of the leadframe and have a thickness between the first surface and the second surface that is less than a thickness of the leadframe. A fill of electrically insulative material is molded between the electrically conductive structures of the leadframe, with the electrically insulative material being molded between the connection structure and the other of the surfaces of the leadframe. The sacrificial connection structure counteracts deformation and displacement of components during formation and pre-molding of the leadframe.

The utility model provides a heliostat mirror frame, include: main girder, set up first support layer on main girder, the second support layer who is configured for bearing sub mirror, second support layer includes a plurality of second support frame interval setting on first support layer, and at least two second support frames form a sub mirror mounting area for bearing sub mirror, at least part second support frame's length is different, and / or, at least part second support frame's extension direction is different to form different sub mirror mounting area. The utility model provides technical scheme to design to a plurality of second support frame length and extension direction, make a plurality of sub mirror mounting area formed by a plurality of second support frame have at least part difference, and then make a plurality of sub mirror mounting area can be according to actual demand and splice the heliostat of different contour and install splice out different shape contour, be favorable to according to actual environment and other factors more accurately design and control the focusing effect of heliostat, improve photo-thermal conversion efficiency.

The present application relates to the ultraviolet and visible light co-aperture zoom system of alpha particle visual detection, belongs to optical device technical field, solves the problem that existing detection equipment cannot synchronously carry out ultraviolet and visible light imaging and the observation field is fixed. The system includes first fixed lens group, variable power lens group, compensation lens group, light splitting prism, second fixed lens group and third fixed lens group, each fixed lens group is fixedly arranged, variable power lens group and compensation lens group move along the optical axis direction to realize zoom, the light splitting prism divides the light beam into two paths of ultraviolet and visible light, and the second fixed lens group and the third fixed lens group are used for imaging on the corresponding image sensor. The present application can realize continuous zooming and ultraviolet and visible light imaging under different fields of view by adopting co-aperture and the collaborative movement of variable power lens group and compensation lens group, and the distortion degree is small, and high-quality imaging effect can be stably output.

The application discloses a yacht side plate structure and a manufacturing method thereof. The yacht side plate structure comprises an outer side plate and an inner side plate. The bottom end of the outer side plate is connected with a yacht deck. The top end of the outer side plate is provided with a side gutter. The inner side plate is connected between the top end side gutter of the outer side plate and the yacht deck. The outer side plate, the side gutter of the outer side plate, the inner side plate and the yacht deck form a closed side cavity. The inner plate surface of the inner side plate is integrally provided with a reinforcing part. The welding amount is reduced, the surface of the inner side plate is kept flat, and the appearance of the yacht is improved.

The application provides a telescopic supporting clamp for milling off to 90-degree machining and a profile machining device, which is applied to the technical field of profile machining and is arranged in a sawing area of the profile machining device. The profile machining device further comprises at least a feeding area and a discharging area. After being machined in the sawing area, the profile workpiece is sent to the discharging area for discharging. The supporting clamp comprises a Z-axis clamping module arranged on the side of a 90-degree saw blade and used for clamping the profile workpiece when the 90-degree saw blade mills off; and a Y-axis driving module connected with the Z-axis clamping module and used for driving the Z-axis clamping module to telescopically extend in the Y-axis direction. By additionally arranging a clamp capable of telescopically extending in the Z-axis direction on the side of the 90-degree saw blade, the clamp extends out to clamp the profile when the 90-degree saw blade cuts off, thereby playing an auxiliary supporting and fixing role, reducing the deformation of the workpiece during machining and improving machining precision.

The utility model relates to a kind of high trapezoidal multi-hole high cavity reinforced structure wall pipe, including pipeline main body, reinforcing rib is formed with spiral winding in pipeline main body outer end face, it is hollow, and cross-sectional shape is set to trapezoidal;Reinforcing rib outer end face spiral winding is formed with reinforcing pipe, reinforcing pipe is hollow tubular structure, its cross-sectional shape is circular, the outer diameter of reinforcing pipe is not greater than the maximum width of reinforcing rib;Reinforcing frame is arranged in the cavity of reinforcing rib, and it is tightly arranged with the inner wall of reinforcing rib, corrugated pipe is arranged in reinforcing pipe, and it is tightly arranged with the inner wall of reinforcing pipe.Compared with the defect that existing circular reinforcing rib is prone to depression, cracking under asymmetric load, the structure wall pipe is designed through trapezoidal cross-section reinforcing rib, utilizes the advantage that trapezoidal structure stress dispersion is uniform, lateral pressure resistance is strong, efficiently transfers external force such as soil pressure, ground load to pipeline main body, avoids local stress concentration.

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.

The utility model discloses a gradient cooling system for injection molding, which belongs to the technical field of cooling equipment and comprises a forming die, a cooling-water machine and a mixing box, the forming die is provided with a quick cooling channel and a slow cooling channel, a cooling water outlet of the cooling-water machine is provided with a main water inlet pipeline, and the main water inlet pipeline is communicated with the quick cooling channel through a first branch water inlet pipeline. The main water inlet pipeline is communicated with the slow cooling channel through a second branch water inlet pipeline, a main water return pipeline is arranged at a water return port of the cooling-water machine, the main water return pipeline is communicated with the rapid cooling channel through a first branch water return pipeline, and the main water return pipeline is communicated with the slow cooling channel through a second branch water return pipeline. The mixing box is further communicated with the first branch water return pipeline through a second mixing water inlet pipeline, the mixing box is communicated with the second branch water inlet pipeline through a mixing water outlet pipeline, and a water pump is arranged on the pipeline. And due to the partition cooling design, product deformation is effectively reduced, heat energy is utilized, and energy consumption is reduced.

An apparatus and method for reinforcing a nonwoven fabric comprising at least one layer of unreinforced nonwoven fabric and / or one layer of loose fibers, the apparatus having at least one transport platform configured for transporting the unreinforced nonwoven fabric and / or loose fiber layer, the transport platform having a circulating conveyor belt having a first horizontal section, followed by a second downwardly sloping section along the material transport direction, having a first cylinder with at least two water jet beams along the material transport direction, and a second cylinder with at least two water jet beams disposed above the first cylinder. The invention is characterized in that the first cylinder for receiving the nonwoven fabric or loose fiber layer cooperates with the downwardly sloping section of the transport platform such that the upper side of the unreinforced nonwoven fabric or the upper side of the loose fiber layer is located on the cylinder surface.

The invention belongs to the technical field of brazing, and particularly discloses a vacuum brazing method for chromium-zirconium-copper and stainless steel, a brazing joint and application, and the method comprises the following steps: cutting chromium-zirconium-copper and stainless steel base materials into round bars: preparing a Ni coating on the surface of the stainless steel after the stainless steel base material is pretreated; the Ag15CuP brazing filler metal is preset on a to-be-welded interface and placed in a vacuum brazing furnace, vacuumizing and heating are conducted, and then the Ag15CuP brazing filler metal is cooled to the room temperature; and low-temperature stress relief annealing is conducted on a brazed finished product, and furnace cooling is conducted to the room temperature. According to the vacuum brazing method for the chromium-zirconium-copper and the stainless steel, the brazing joint and the application, the novel silver-saving brazing filler metal Ag15CuP is selected as the brazing filler metal, efficient and reliable connection of the chromium-zirconium-copper and the stainless steel is achieved through the synergistic process scheme of stainless steel surface nickel plating modification, gradient temperature control vacuum brazing and low-temperature annealing, and the service life of the chromium-zirconium-copper and the stainless steel is prolonged. The obtained brazed joint is excellent in high-temperature and low-temperature cycle resistance, and can meet the service requirements of key components such as an airspace engine combustion chamber and a heat exchanger.

The utility model relates to related technical field of PE pipe production equipment, concretely to a kind of PE pipe section cutting fixing device, it include: machine case;The top of the machine case is provided with pipe body, the bottom of the pipe body both sides is uniformly provided with transmission roller, the centre of the transmission roller is fixedly connected with first rotation axis. The utility model can control PE pipe to rotate at uniform speed while cutting PE pipe by the cooperation of machine case, pipe body, transmission roller, first rotation axis, fixed block, portal frame, transmission mechanism and cutting mechanism, so that PE pipe material is uniformly stressed, unilateral stress concentration is avoided, burr, crack or deformation is reduced, the existing PE pipe section cutting fixing device can be fixed and cut PE pipe, but PE pipe cannot be controlled to rotate while cutting, leading to uneven stress of PE pipe, unilateral stress concentration, leading to not only more burr at PE pipe cutting place, but also prone to crack or deformation.

This utility model relates to the field of bearing technology, and in particular to a high-efficiency, high-temperature resistant bearing, comprising an outer ring, an inner ring disposed within the outer ring, and a plurality of rolling elements disposed between the inner and outer rings. A front protective plate is movably connected to the front end of the outer ring, and a rear protective plate is movably connected to the rear end of the outer ring. A ceramic coating is fixedly connected to the rear end of the rear protective plate and the front end of the front protective plate. Four oil injection holes are equidistantly distributed on the outer surface of the outer ring. An extension ring is fixedly connected to the front end of the rear protective plate and the rear end of the front protective plate, and a retaining strip is fixedly connected to the outer surface of each of the two extension rings. This high-efficiency, high-temperature resistant bearing, by having a ceramic coating on both the rear end of the rear protective plate and the front end of the front protective plate, with the front protective plate shielding the front end of the outer ring and the rear protective plate shielding the rear end of the outer ring, and with the ceramic coating acting as a barrier, improves the overall high-temperature resistance of the bearing.

This invention discloses an integrated method and system for hoisting, positioning, and welding of steel tower segments for bridges, relating to the field of bridge engineering construction technology. The method includes: setting multiple hoisting points on the steel tower segment; real-time acquisition of cable stiffness, vertical acceleration, and wind speed and direction; calculating the target command tension at each hoisting point and issuing it to the hydraulic system; after hoisting, acquiring the peak residual stress and the initial six-degree-of-freedom positioning error, encapsulating them into a first state transfer vector; using the first vector as input, iteratively adjusting the six-degree-of-freedom positioning mechanism; iterating until all degree-of-freedom errors converge to within the design tolerance; and finally, encapsulating the final positioning error and the current residual stress into a second state transfer vector; using the second vector as input, calculating an adaptive heat input for each weld pass, including bevel depth heat input adjustment, positioning error attenuation correction, and thermo-mechanical coordinated adjustment, acting on the reference heat input to drive the welding power source to perform welding pass by pass, from the bottom of the slope to the top.

The utility model relates to agricultural harvesting machinery technical field, concretely relates to the anti-injury excavating shovel structure of konjak harvester, including shovel body support, the bottom fixed mounting of shovel body support is horizontally arranged horizontal beam, the bottom fixed mounting of horizontal beam has a plurality of linear equidistance arrangement vertical beam along horizontal beam length direction, the bottom rod body of vertical beam is provided with angle adjustable excavating shovel, the end head position of excavating shovel is provided with arc blade mouth, the back central position of excavating shovel is integrally formed with reinforcing rib, and the first compression support rod and second compression support rod for resisting compression support are arranged between vertical beam and reinforcing rib. The utility model discloses firm structure can reduce the injury of konjak, reaches the effect of protecting the integrity of konjak.

A small-radius curve joint insulation device with guard rails comprises a spacer block lapped between two butt-joint steel rail interfaces, an insulation inner clamping plate is arranged between the spacer block and a steel rail, an insulation outer clamping plate opposite to the insulation inner clamping plate is arranged on the outer side of the steel rail, and a spacer piece is arranged between the butt-joint steel rail interfaces; the I-shaped section insulation is combined with the spacer block and the groove-shaped insulation, so that the problems of pulling deformation and insulation failure caused by uneven stress of double-section insulation are solved; the insulation assembly can be better attached to a track structure, stress is effectively dispersed, the impact resistance is improved, long-term stable operation is ensured, and the requirements of high-load and high-frequency train operation are met. According to the device, the mechanical strength of the insulation assembly is improved, the problems of deformation and aging caused by long-term use are reduced, the service life of equipment is prolonged, the stability and reliability of a track circuit are further improved, and safe and efficient operation of railway transportation is ensured.

The utility model discloses casting slag ladle manufacturing equipment which comprises a ladle body, a trunnion, a ladle body reinforcing rib, a tank car fixing lug and a ladle bottom radian, the ultrasonic flaw detection percent of pass of the trunnion reaches 100% through an accurate trunnion pre-embedding device and a reasonable sand mould manufacturing process, and the structural strength and rigidity are enhanced through unique ladle body design and reinforcing rib layout. The bearing capacity is improved, deformation is reduced, and the service life is prolonged. In the aspect of the production process, the sand mold manufacturing mold is split by the horizontal center line of the tank car fixing lug, and sand mold manufacturing is efficiently and accurately completed; the box closing device is matched with the pouring system, smooth box closing pouring is guaranteed, the rejection rate is reduced, the production period is shortened, and the efficiency is improved. In the aspect of cost control, the equipment process is optimized, the yield is improved, the waste loss is reduced, meanwhile, equipment such as a sand mold manufacturing mold is durable, the maintenance cost is reduced, the safety accident risk caused by slag ladle faults during steelmaking slag conveying is effectively reduced, and the personnel safety and the production order are guaranteed.