1030 results about "Spring steel" patented technology

The invention discloses an automatic spring steel wire forming device with a guide structure and a use method thereof, and relates to the technical field of spring forming, the automatic spring steel wire forming device comprises a wire feeding mechanism, a pre-straightening and online detection module, an active flexible guide module, a force feedback forming module and a central control system; the pre-straightening and on-line detection module, the active flexible guide module and the force feedback forming module are sequentially connected in series along a feeding path of a steel wire and are electrically connected with the central control system; a precise actuator controlled by the central control system is arranged in the active flexible guide module; and the force feedback forming module comprises a forming part and a force sensor connected with the forming part, and the force sensor is used for feeding back the real-time forming force in the forming process to the central control system. Through closed-loop control of online sensing, active guiding and force feedback, intelligent adaptation to steel wire parameter changes is achieved, the spring forming precision and consistency are remarkably improved, the equipment reliability is remarkably improved, and the service life of the equipment is remarkably prolonged.

The invention discloses a production method for reducing slag runners in a spring steel square billet casting process, which specifically comprises the following steps: the superheat degree of continuous casting molten steel is 20-40 DEG C, slag is automatically added into a continuous casting square billet, and casting powder is conveyed into a crystallizer by taking compressed air as a carrier, so that a high-concentration compressed air atmosphere at an upper opening of the crystallizer is ensured, and the casting quality is improved. And a combustion-supporting effect is achieved on the casting powder, so that the melting effect of the casting powder is improved. And the insertion depth of the submersed nozzle is 70-80mm, so that the higher temperature of molten steel on the meniscus of the crystallizer is ensured, and the slag surface melting effect is improved. The slag line is not changed in the casting process; the crystallizer uses vibration parameters with high vibration frequency and high amplitude, so that the negative slippage time and the vibration advance amount of the crystallizer are improved, the inflow of liquid casting powder in an air gap between a steel billet and a copper pipe is facilitated, and the slag runner phenomenon in the casting process of the casting blank is avoided.

The invention discloses steel belt winding equipment and a winding forming method thereof. The steel belt winding equipment comprises a controller, an unwinding device, a correcting device, an annealing device, a pushing device, a machining device, a winding device and a discharging and conveying device, the machining device comprises a guide sleeve and a plurality of machining telescopic mechanisms, and the telescopic end of each machining telescopic mechanism is provided with a cutter mechanism, an upper clamping mechanism, a lower clamping mechanism and a pre-bending mechanism. According to the steel belt winding equipment and the winding forming method thereof, all the devices are controlled to work cooperatively through the controller, integration of all the working procedures is achieved, the production efficiency of spring steel is effectively improved, the consistency of products is ensured, and continuous assembly line work from the steel belt to the formed spring steel is achieved.

The invention provides an online detection and compensation method for local decarburization of a high-strength spring steel band, which comprises the following steps: arranging an oxygen content sensor in a continuous annealing furnace to monitor oxygen concentration in real time, and marking a potential decarburization risk section; scanning the risk section steel strip by adopting infrared thermal imaging, and generating a carbon distribution map to position a decarburization area; pulse laser heating is conducted on the decarburization area, and methane-argon mixed gas is introduced to achieve in-situ carburization; and finally, local thermal stress is eliminated through high-frequency induction heating. According to the method, decarburization risk dynamic early warning, defect accurate positioning, local efficient carbon supplementation and stress homogenization control are achieved, and the surface quality and fatigue performance of the steel strip are remarkably improved.

The invention provides a spring steel wire tension detection device capable of being quickly disassembled and assembled, which belongs to the technical field of steel wire detection and comprises a tensile machine, a buffer mechanism, a fixing mechanism, a locking mechanism and a triggering mechanism. The tensile machine comprises two clamps, and each clamp comprises a buffer mechanism arranged on the tensile machine and used for providing buffer force for a spring steel wire; the fixing mechanism is connected with the buffering mechanism, and the fixing mechanism is matched with the buffering mechanism to clamp and fix the spring steel wire; the locking mechanism is arranged on the buffering mechanism, and the fixing mechanism is limited and locked by the locking mechanism; and the triggering mechanism is arranged on the buffering mechanism, and the buffering mechanism triggers the triggering mechanism to move so as to relieve limiting of the locking mechanism to the fixing mechanism. According to the device, limiting can be automatically relieved after the spring steel wire is broken, an operator does not need to manually conduct complex unlocking operation, the spring steel wire can be rapidly pulled away, rapid dismounting of the spring steel wire is achieved, and the working efficiency is remarkably improved.

The invention discloses a reinforcement learning-based spring steel wire drawing control method, which comprises the following steps of: acquiring real-time process parameters to form a process state data sequence; inputting the process state data sequence into the state space model, and constructing a virtual working condition sample; based on the virtual working condition sample, pre-training a reinforcement learning controller and outputting an initial control strategy; inputting the initial control strategy into a lower-layer strategy network, and outputting a wire drawing speed adjusting instruction; the current process state and the wire drawing speed adjusting instruction serve as synchronous input, and an implicit context vector is generated; extracting control strategy characteristics in the edge controller, performing compressed encoding and forming control strategy representation; uploading the control strategy representation to a cloud server, and outputting a unified global control strategy model; and carrying out anomaly detection on the current process state, and if a detected state reconstruction error exceeds an anomaly judgment threshold, triggering safety control logic. The spring steel wire drawing control device realizes spring steel wire drawing control.

The utility model discloses a printing ink blocking mechanism for preventing ink splashing, and relates to the technical field of gravure printing machines, including a base, an ink tank fixedly installed on the top of the base, a wedge-shaped mounting block fixedly installed on one side of the ink tank, and a sliding plate slidably installed in the wedge-shaped mounting block. The utility model inserts a spring steel sheet into the sliding plate, and then fixes it by bolts, and then inserts the sliding plate as a whole into the wedge-shaped mounting block, and limits the position by the block, because the spring steel sheet has elasticity, at this time, the upper end of the spring steel sheet contacts the scraper, and when the scraper needs to be adjusted, the spring steel sheet can always contact the lower end of the scraper, and the ink splashed from the ink transfer roller will be blocked by the guide slope of the spring steel sheet, and then flow back into the ink tank through the guide slope, and because the sliding plate is slidably installed on the wedge-shaped mounting block, when the gravure printing machine is stopped, the sliding plate can be slid out as a whole, and then the spring steel sheet can be wiped, and cleaning is also more convenient.

The invention relates to large-specification alloy spring steel and a production method thereof. The control process comprises the steps of steelmaking, bloom continuous casting, heating cogging, coping flaw detection, anti-decarburization segmented spraying, small square billet heating, high-speed wire controlled rolling, stelmor wire controlled cooling and coil collecting and packaging. And the surface quality and the structure property uniformity of the wire rod are effectively improved by combining segmented spraying of the anti-decarburization coating with a refined controlled rolling and controlled cooling process, and the wire rod can be used for preparing the large-size high-strength automobile suspension spring.

The invention discloses high-temperature-resistant high-carbon alloy spring steel and a manufacturing method of a hot-rolled coil plate of the high-temperature-resistant high-carbon alloy spring steel. The high-temperature-resistant high-carbon alloy spring steel comprises, by weight, 0.58%-0.66% of C, 1.60%-2.00% of Si, 0.60%-0.90% of Mn, 0.015%-0.060% of Al, smaller than or equal to 0.015% of P, smaller than or equal to 0.010% of S, 0.30%-0.50% of Cr, 0.15%-0.25% of Ni, 0.02%-0.05% of Nb, smaller than or equal to 0.080% of Cu and the balance Fe and inevitable impurities. The manufacturing method of the high-temperature-resistant high-carbon alloy spring steel hot-rolled coil plate comprises the steps of molten iron pretreatment, converter smelting, LF refining, RH refining, slab continuous casting, slab hot rolling, heat treatment and the like. A high-temperature-resistant spring made of the high-temperature-resistant high-carbon alloy spring steel hot-rolled coil plate has the characteristics of high purity, high precision, high-temperature resistance, high yield point, high elastic limit, excellent toughness, fatigue resistance, corrosion resistance and hardenability, meets the use requirements of users on high-temperature-resistant spring steel, can completely replace imported springs, and has wide application prospects. And the technical blank in the field in China is filled.

The invention discloses a multi-stage damping semi-active magnetoelectric damper capable of recycling energy. Relates to the technical field of engineering structure shock-absorbing dampers, and comprises a transmission mechanism, the transmission mechanism comprises a spring box, power springs, steel wires and a rotor, the spring box is provided with an upper part and a lower part, the steel wires and the power springs are respectively arranged in the upper part and the lower part of the spring box, the rotor is arranged in the middle of the spring box, and one ends of the two steel wires are connected and wound on the rotor; lug rings are arranged at the other ends of the two steel wires, the inner ring ends of the two power springs are fixed to the rotor in a penetrating mode, and the other ends of the two power springs are connected with the spring box; the buffer mechanism comprises a first-stage buffer unit, a second-stage buffer layer and a third-stage buffer unit, and the first-stage buffer unit, the second-stage buffer layer and the third-stage buffer unit are sequentially arranged on the two spring boxes; by means of the novel damper capable of achieving multi-order mixed control over acceleration, speed and displacement, an engineering structure can meet the self-adaptive damping requirement during vibration.

The invention provides an anti-extrusion cable and a cable connection structure, and relates to the technical field of cables.The anti-extrusion cable comprises a cable body, the cable body comprises a middle sheath, a shielding layer, a plurality of guide cores, a filling layer and an inner insulating sheath, the guide cores are evenly arranged on the inner side of the middle sheath, and the shielding layer is arranged on the inner side of the middle sheath; the guide cores, the inner insulating sheaths and the shielding layers are arranged in a one-to-one correspondence manner, the inner insulating sheaths tightly wrap the outer sides of the guide cores, the shielding layers tightly wrap the outer sides of the inner insulating sheaths, and the filling layers are filled in gaps between the shielding layers and the middle sheath; a middle sheath of a cable main body is made of chloroprene rubber materials and provides stable support for an internal structure, a spiral spring steel wire fixedly sleeved on the outer side of the middle sheath can effectively disperse external extrusion acting force and improve the overall anti-extrusion performance of the cable, and a silicone rubber layer coated on the outer side of the steel wire is tightly attached to the steel wire and extends to the outer wall of the middle sheath to be in hot melting connection, so that the service life of the cable is prolonged. And extrusion impact can be buffered in an auxiliary manner.

The invention relates to the technical field of spring steel treatment, and particularly discloses an ultrahigh-strength spring steel quenching and tempering treatment process, which is characterized in that a temperature monitoring system is arranged for monitoring a temperature rise stage in spring steel quenching and tempering treatment; the method specifically comprises the following steps that firstly, real-time temperature data of the temperature rising stage in spring steel quenching and tempering treatment are obtained, and analysis and judgment are conducted; according to the method, the temperature data in the temperature rising stage are obtained in real time, the deviation between the temperature data and the standard temperature is calculated, namely the temperature deviation value, the temperature deviation value is compared with the first temperature deviation threshold value and the second temperature deviation threshold value, and a temperature normal signal, a to-be-analyzed signal or a temperature abnormal signal is recognized and generated; therefore, abnormal conditions in the heating process can be found in time and processed, and meanwhile, the to-be-analyzed signals can be further processed and analyzed, so that parameters in the heating process are optimized, and the processing effect is improved.

The steel comprises the following chemical components in percentage by mass: 0.40 to 0.55 percent of C, 0.80 to 1.20 percent of Si, 0.80 to 1.60 percent of Mn, 0.90 to 1.25 percent of Cr, less than or equal to 0.020 percent of P, less than or equal to 0.015 percent of S, less than or equal to 0.15 percent of Cu, less than or equal to 0.08 percent of V and less than or equal to 0.20 percent of Nb, 0.0005 to 0.0050 percent of B, 0.015 to 0.025 percent of N, less than or equal to 0.15 percent of Ni, less than or equal to 0.05 percent of Mo, 0.04 to 0.10 percent of Ti, less than or equal to 0.001 percent of Ca, less than or equal to 0.0008 percent of [O] and the balance of Fe and inevitable impurity elements. After heat treatment, the tensile strength of the steel is 1800 MPa or above, the yield strength is 1620 MPa or above, the ductility is 10% or above, the area reduction rate is 40% or above, and the yield ratio is 0.90 or above; and the boundary dimension precision is that the dimension precision of phi 45 to phi 60 is less than or equal to + / -0.05 mm, and the surface has no defect. According to the invention, key procedures are optimized, researched and controlled, so that the high-performance spring steel for the stabilizer bar of the commercial vehicle has ultrahigh purity, high strength and high yield ratio, and is superior to the existing spring steel for the stabilizer bar of the commercial vehicle.

The present invention discloses a production method for reducing slag grooves during the casting process of spring steel billets, specifically: the superheat degree of the continuous casting molten steel is between 20 and 40°C, slag is automatically added to the continuous casting billet, and the protective slag is transported to the crystallizer through compressed air as a carrier, thereby ensuring a relatively high concentration of compressed air atmosphere at the upper mouth of the crystallizer, which has a combustion-supporting effect on the protective slag, thereby improving the melting effect of the protective slag. The insertion depth of the submerged nozzle is 70‑80mm, which ensures a relatively high temperature of the molten steel on the meniscus of the crystallizer, thereby improving the melting effect of the slag surface. The slag line remains unchanged during the casting process; the crystallizer uses high-frequency and high-amplitude vibration parameters to increase the negative slip time and the crystallizer vibration advance, which is beneficial to the inflow of liquid protective slag into the air gap between the billet and the copper tube, thereby avoiding the slag groove phenomenon during the billet casting process.

The utility model discloses a magnetic door lock which comprises a shell, a spring bolt, an unlocking mechanism and an external lock groove, the spring bolt is rotationally arranged in the shell, a spring bolt hole is formed in the position, corresponding to the tongue end of the spring bolt, of the shell, and the interior of the lock groove is in magnetic attraction fit with the tongue end; the unlocking mechanism comprises a rotor, a shifting block and a reset torsion spring, the two ends of the rotor are in running fit with the shell, the shifting block is arranged on the periphery of the rotor in a sleeving mode and is in transmission fit with the rotor, one end of the shifting block is provided with a shifting arm used for touching the root end of the spring bolt, the reset torsion spring is round and is arranged outside the rotor in a sleeving mode, and the two ends of a spring steel wire of the reset torsion spring are provided with clamping feet. The two clamping feet abut against the shifting block and the shell respectively so as to provide acting force for driving the shifting arm to leave the tongue root end. The unlocking mechanism of the magnetic door lock is driven by the rotor, the two ends of the rotor abut against the front side and the rear side of the shell, a better supporting effect is achieved, and rotation is more stable and reliable; meanwhile, the unlocking mechanism does not have a linkage relation with other mechanisms and acts independently, transmission resistance is reduced, and operation is more labor-saving and reliable.

The automobile seat front-back adjusting waist rest structure comprises a foundation bottom plate, a limiting rod is arranged on one side of the foundation bottom plate, a displacement mechanism is arranged at the center of the outer wall of the limiting rod, a control unit is arranged on one side of the displacement mechanism, a displacement plate is arranged on one side of the displacement mechanism, and a connecting through hole is formed in the outer wall of the displacement plate. The displacement plate is connected with the foundation bottom plate through the combination of the connecting through holes and the limiting rods, a fixed waist rest is arranged on one side of the displacement plate, a non-contact capacitive sensing array is arranged on the outer wall of the fixed waist rest, and the non-contact capacitive sensing array is arranged on the outer wall of the fixed waist rest through cooperative control of the four-dimensional limiting rods and the sliding rail displacement mechanism. Dynamic fitting of a waist supporting curved surface is achieved by combining a pressure distribution standard deviation algorithm, a spring steel plate composite displacement mechanism can be compatible with installation of seats of various vehicle types, meanwhile, the pressure difference of the upper waist, the middle waist and the lower waist is monitored in real time, millimeter-level displacement adjustment is triggered, and the driving comfort is remarkably improved while driving safety is guaranteed.

The utility model relates to the technical field of spring and steel ball assembling equipment, in particular to a spring and steel ball assembling device which is used for assembling springs and steel balls on products and is high in automation degree, assembling precision and assembling efficiency. The product feeding mechanism, the spring assembling mechanism, the steel ball feeding mechanism, the steel ball riveting mechanism, the steel ball detecting mechanism and the product discharging mechanism are arranged around the rotating disc. Spring feeding and assembling and steel ball feeding and assembling are sequentially carried out, and the assembling precision is improved through mechanical automatic assembling; meanwhile, a turntable structure is adopted, the product rotating speed can be increased, and the production efficiency is improved.

The utility model belongs to the technical field of spring machining equipment, and particularly relates to a spring machining feeding device which comprises a base and a lifting plate. A first side plate and a third side plate are installed on the two sides of the lower surface of the lifting plate respectively. A first connecting shaft and a third connecting shaft are installed in a bearing on the outer wall of the first side plate and a bearing on the outer wall of the third side plate correspondingly, and a second side plate and a fourth side plate are installed on the two sides of the upper surface of the base correspondingly. A second connecting shaft and a fourth connecting shaft are installed in a bearing on the outer wall of the second side plate and a bearing on the outer wall of the fourth side plate correspondingly, and U-shaped connecting plates are installed at one end of the first connecting shaft, one end of the second connecting shaft, one end of the third connecting shaft and one end of the fourth connecting shaft correspondingly. Straight-strip-shaped spring steel materials with different outer diameters can be conveyed in a limited mode, the situation that the straight-strip-shaped spring steel materials deflect in the conveying process is avoided, and practicability is high.

The invention belongs to the technical field of mechanical manufacturing equipment, and particularly relates to a deformation control machining method for an aircraft alloy steel structural part and a self-adaptive clamping device. The device comprises a bottom plate (1), a spring steel sheet (2) and a plurality of process laps (3), the bottom plate (1) is a rectangular base, mounting grooves (10) are distributed in the upper end face of the bottom plate in an equally-spaced matrix array mode, and the spring steel sheets (2) are mounted in the mounting grooves (10). Threaded holes (4) and positioning pin holes (5) are distributed in the upper end face of the bottom plate at equal intervals in an array mode. A plurality of process laps are connected to the periphery of the structural part to be machined, two of the process laps (3) are installed on the positioning pin holes (5) located in the same straight line to form a machining reference axis, and the other process laps (3) are distributed on the two sides of the reference axis; the process lap (3) is provided with a groove (6) in the thickness direction of the blank, a pressing plate is clamped in the groove, and the pressing plate is locked and fixed to the bottom plate through a bolt.

The invention discloses ultra-high-strength spring steel with the tensile strength larger than or equal to 2100 MPa for a large-specification spring of engineering machinery and a preparation method of the ultra-high-strength spring steel, and relates to the technical field of steel production. 1.50% to 2.00% of Si; 0.80% to 1.50% of Mn; 0.90% to 1.50% of Cr; 0.10% to 0.40% of Mo; 0.40% to 0.80% of Ni; 0.10% to 0.40% of W; 0.08% to 0.15% of V; ti: 0.015% to 0.035%; b: 0.0008% to 0.0035% of the total weight of the P: less than or equal to 0.012%; s: < = 0.006%; o < = 0.0015%; and the balance of Fe and inevitable impurities. The prepared ultrahigh-strength spring steel has the advantages of being excellent in hardenability, high in strength, good in plasticity and toughness and the like.

The utility model relates to the field of drilling tools for wells, in particular to a self-adaptive rotary steering drilling tool which comprises a drill bit body and a damping column, a plurality of blades are sequentially arranged on the crown portion of the drill bit body in the circumferential direction, the cutting faces of the blades are fixedly connected with a plurality of cutting teeth, and mounting holes are formed in the outer side faces of the blades. Steel sleeves are fixedly arranged in the mounting holes, the damping columns are movably inserted in the steel sleeves, the ends, located in the steel sleeves, of the damping columns are fixedly connected with connecting bases, adjusting plates are arranged between the connecting bases and the bottoms of the steel sleeves, and outer-layer low-rigidity spiral springs are connected between the adjusting plates and the connecting bases. An inner layer high-rigidity conical spring is arranged on the inner side of the outer layer low-rigidity spiral spring, and an adjusting assembly for adjusting the adjusting plate and the bottom of the steel sleeve is arranged on the steel sleeve. The drill bit can better adapt to different pressure requirements, and the drill bit is prevented from bearing overlarge impact force, so that the cutting teeth are protected, and the service life of the drill bit is prolonged.

The utility model discloses a durable sealing type lampshade of an automobile headlamp, and relates to the technical field of automobile lampshades. The LED lamp comprises a lampshade heat dissipation end cover and a transparent lampshade, an installation protruding ring is fixedly installed on the end face of the transparent lampshade, and elastic sealing assemblies used for sealing the lampshade heat dissipation end cover and the transparent lampshade are arranged on the end face of the transparent lampshade and the end face of the lampshade heat dissipation end cover. According to the LED lamp, the bolts are in threaded insertion with the surfaces of the mounting convex ring, the elastic sealing assembly and the lampshade heat dissipation end cover, so that the transparent lampshade and the lampshade heat dissipation end cover are fixed, and the elastic sealing assembly is compressed; the gap between the transparent lampshade and the lampshade heat dissipation end cover is sealed through the elastic sealing assembly, a C-shaped structure is formed by the arc-shaped sealing ring on the top face of the first sealing ring and the arc-shaped spring steel strip in the arc-shaped sealing ring, and a C-shaped opening faces the outside, so that rainwater and the like can be drained.

The invention discloses a heating process for reducing surface decarburization of spring steel, which is characterized in that during billet heating, peak temperature intervals such as 800 DEG C and 1100 DEG C which are easy to cause intensification of a decarburized layer are avoided, the heating temperature is controlled between 950 DEG C and 1050 DEG C, the heating rate is adjusted according to production requirements, the spring steel quickly passes through a two-phase region, the retention time in the region is reduced, and the surface decarburization of the spring steel is reduced. The formation of a grain boundary ferrite fully decarburized layer is inhibited; the heat preservation time is controlled within 1.5-2 hours; after heating is completed, the steel billet is rapidly taken out and cooled to the room temperature in an air cooling mode; the spring steel is made of W55SiCrC steel for high-end automobiles. The method for optimizing the heating temperature, rapidly passing through the two-phase region and reasonably setting the heat preservation time is utilized, the thickness and structure uniformity of a decarburized layer on the surface of the spring steel are remarkably improved, and therefore the anti-fatigue performance of the spring steel is remarkably improved, and the service life of the spring steel is remarkably prolonged.

To provide a stretch cord that can be easily attached to various parts of the body. [Solution] A stretch cord (10) has a composite spring structure (3) in which a spring steel wire (1) is threaded through a tube member (2), and a main tube portion (5) connected to ring members (4) at both ends, and can be wrapped around the body to provide pressure, acupressure, and stretching. When the stretch cord (10) is wrapped around the body, the elasticity of the spring steel wire (1) applies pressure to the muscles and tendons, preventing them from being pushed outward. When the body is moved with the stretch cord (10) worn, the elasticity of the spring steel wire (1) stimulates the muscles and tendons, providing acupressure and relieving stiffness. When the stretch cord (10) is wrapped around the body in a spiral, the return force of the spring steel wire (1) stretches the muscles and tendons, preventing them from contracting.

The invention relates to the technical field of rubber hoses, in particular to a pressure-resistant and oil-resistant rubber hose and a preparation method thereof.The preparation method comprises the following steps that S1, nitrile rubber, chloroprene rubber, chlorosulfonated polyethylene, chlorinated polyethylene, sulfur, an accelerant and an anti-aging agent are added into an internal mixer to be evenly mixed, the temperature is controlled for mixing, sheet discharging is conducted, a pipe blank is extruded through an extruder, and the pipe blank is obtained; a combined rubber layer is obtained; s2, the combined rubber layer, the woven copper-plated steel wire layer, the reinforcing layer, the spiral zinc-plated spring steel wire layer, the reinforcing layer, the woven copper-plated steel wire layer and the combined rubber layer are subjected to interlayer bonding in sequence, and the assembled hose is obtained; and S3, the assembled hose is put into a vulcanizing tank to be subjected to vulcanizing treatment. By adopting the seven-layer composite structure design, the rubber hose disclosed by the invention can be in contact with a strong corrosive medium for a long time without internal corrosion, so that the service life of the hose is prolonged, and the safety of the hose in the use process is also improved.

The invention relates to the technical field of track vibration reduction, in particular to a vibration isolation track based on multiple negative stiffness mechanisms, which comprises a floating slab track bed and a railway track arranged on the top surface of the track bed, two symmetrical vertical rigidity variable vibration isolation supports are arranged at the bottom of the floating slab ballast bed; the vertical rigidity variable type vibration isolation support comprises an outer sleeve, an inner sleeve with a clamping opening, a belleville spring, a steel spring and a shaft rod. A motorized negative stiffness hinge mechanism is arranged in the center of the bottom of the ballast bed; the motorized negative stiffness hinge mechanism is formed by hinging a plurality of connecting rod pieces through a plurality of hinge points; elastic buffer assemblies are symmetrically arranged on the side edges of the ballast bed; the elastic buffer assembly is arranged between the ballast bed and the inner wall of the tunnel; and the elastic buffer assembly comprises an inclined pre-bent steel plate, an inclined pre-tensioning steel spring and a horizontal pre-pressing steel spring, so that the whole ballast bed has a relatively large negative stiffness effect, the natural vibration frequency of the whole system is further reduced, and a very obvious vibration isolation effect is provided.

The invention relates to the technical field of oiling devices, and discloses a spring steel wire oiling device which comprises an oiling device body, the oiling device body comprises a shell, a control device is installed in front of the shell, a control module is arranged in the control device, and a base is installed at the edge of the bottom of the shell. An oil recovery device is installed on the right side of the bottom of the shell, an oiling mechanism is installed in the middle of the top of the shell, a conveying device is arranged in the shell, the shell and the shell are located on the same plane, a gas conveying mechanism is installed on the left side of the top of the shell, and a cleaning mechanism is installed on the inner wall of the right side of the shell. By arranging the gas conveying mechanism and the cleaning mechanism, hot air generated by the gas conveying mechanism can be conveyed to the surface of the water absorption plate through the gas groove and the spray gun, the dewatering efficiency of the water absorption plate is improved, and whether the surface of the spring steel wire meets the production standard or not can be analyzed by the control module through real-time air pressure data changes.

The invention discloses a production method of a low-cost carbon spiral spring steel wire rod, the chemical components of the steel grade do not contain precious alloy elements, the production process comprises the steps of converter top and bottom combined blowing smelting, LF refining, 6 # small square billet continuous casting, slow cooling and rolling in a wire factory, and the use requirements of users can be met without VD refining furnace production.

The utility model discloses a swing type self-resetting bridge pier structure provided with belleville springs, belongs to the field of bridge engineering, and solves the problems of how to improve the anti-seismic property of a bridge and ensure self-resetting and repairability of a bridge pier after an earthquake. A bridge pier base is arranged at the bottom of a bridge pier and arranged on a bearing platform, the bridge pier base and the bearing platform are connected through a swing type self-resetting device, the swing type self-resetting device comprises a steel bar and a belleville spring, the steel bar vertically penetrates through the bridge pier base and downwards extends into the bearing platform, and an anchoring end is arranged at the lower end of the steel bar. The anchoring end is located in the bearing platform, a fastening end is arranged at the upper end of the steel bar, and the belleville spring is arranged on the steel bar in a sleeving mode and located between the fastening end and the pier base. In a normal use state, the pier base after the fastening force is applied bears the bending moment of the bottom of the pier, and the pier base does not slide and does not deform at a corner; when the pier swings under the action of an earthquake, the belleville springs are stretched and compressed in a reciprocating manner, and self-resetting force is provided for the pier.

The utility model discloses a vertical vibration reduction support based on piezoelectric energy consumption for bridge engineering, which comprises a base plate, a lower seat plate arranged in the base plate, a middle seat plate arranged on the lower seat plate, an upper seat plate arranged on the middle seat plate, and a vibration reduction disc arranged in the base plate and used for vertical vibration reduction. The upper end of the damping disc makes contact with the lower seat plate, a piezoelectric energy dissipation assembly is arranged between the damping disc and the base plate, the damping disc is in an arch shape, the arc face of the damping disc is connected with the pressure bearing block, and the plane of the lower end of the pressure bearing block is connected with the piezoelectric energy dissipation assembly. The vibration reduction disc is made of a spring steel material and adopts an arch-shaped structure, so that stable vertical support can be provided for an upper structure under the action of static force. Vibration reduction and energy consumption of the vertical support are achieved through the piezoelectric energy consumption assembly, the piezoelectric energy consumption assembly converts high-frequency vibration mechanical energy of the support into electric energy through the two piezoelectric ceramic plates, the energy consumption efficiency is high, the working temperature range is wide, and the adaptive capacity is high.