328 results about "Spring steel" patented technology

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 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 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.

The utility model relates to the technical field of aircraft power supply connection, in particular to a two-way elastic clamping jaw double-locking anti-falling battery connector, which comprises an upper elastic sheet, a lower elastic sheet, a first clamping jaw and a second clamping jaw, first clamping jaws are fixedly connected to the front end faces of the upper elastic piece and the lower elastic piece, first clamping grooves are formed in the first clamping jaws, a plurality of evenly-arranged first anti-skid teeth are fixedly connected to the inner walls of the first clamping grooves, second clamping jaws are fixedly connected to the rear end faces of the upper elastic piece and the lower elastic piece, and second clamping grooves are formed in the second clamping jaws. The inner wall of the second clamping groove is fixedly connected with a plurality of second anti-skid teeth which are uniformly arranged; the connecting device is suitable for different temperatures through the double-piece spring steel clamping jaw made of stainless steel, the clamping force and the clamping angle of the clamping jaw can be flexibly adjusted, and the universality and the adaptability of the connecting device are greatly improved.

A safe valve can work stably in high and low temperature environment. It relates to the field of safe valve. The existing safe valve causes the steel ball to be stuck due to unreasonable structure, which seriously affects the normal operation of the lubricating oil system. The utility model discloses a safe movable shell, a nut, a sealing ring, a spring, a steel ball, a spring seat, an oil inlet and an oil outlet. The safe movable shell is provided with an oil inlet and an oil outlet respectively. The safe movable shell is fixedly connected with the nut. The sealing ring is arranged between the safe movable shell and the nut. The spring seat is arranged on the end of the nut close to the steel ball. The spring seat is connected with the safe movable shell and the nut respectively. The spring is arranged between the spring seat and the steel ball. The steel ball is assembled in the oil inlet of the safe movable shell through clearance fit and between the spring. The steel ball is pushed by the lubricating oil pressure. The steel ball pushes the spring to compress the spring. The opening and closing of the oil inlet by the steel ball are realized. The utility model is applied to the field of safe valve of lubricating oil system.

The utility model discloses a kind of flap mechanisms, including box, box cover, baffle, hinge, sheet metal support, spring steel wire and pulley;Box top is equipped with box cover, baffle is fixedly connected in box outer wall one end, hinge is located at baffle both ends, sheet metal support is fixedly installed in baffle one end, spring steel wire rotation is connected in sheet metal support lower side both ends, pulley rotation is connected in one end of spring steel wire.The utility model is compared with prior art's advantage lies in: the utility model utilizes the spring steel wire and the elasticity and torsional force of repeatedly contact cooperation between hinge to promote hinge, when hinge moves back, hinge profile promotes pulley movement, box cover is in open state at this time, the angle of opening and closing is locked by limiting screw and cam limiting boss between pulley and hinge simultaneously, it is convenient to open and close box cover stably, and the present mechanism does not need gas spring, service life is long, the stability when box door cover opens and closes is improved.

The utility model discloses a sealing structure of a steering gear oil cylinder, which belongs to the technical field of sealing of steering gear oil cylinders and comprises a shaft steel wire baffle ring, an oil cylinder oil seal iron sleeve, a sealing rubber ring, a supporting sleeve, a high-pressure framework oil seal, a rack assembly and a steering gear assembly. The device is novel in design and ingenious, the annular groove is formed in the inner wall of the steering engine in advance, then a spring steel structure is adopted to be connected with the annular groove in a clamped mode, and therefore the aluminum blocking structure at the end of the steering engine oil cylinder shell is effectively locked, meanwhile, the high-pressure oil seal is additionally arranged on the other side of the blocking structure, and the sealing effect is good. The outer wall of the blocking structure is sleeved with the two sets of sealing rubber rings to enhance the sealing effect on oil, the two sets of sealing rubber rings and the high-pressure oil seal can achieve the purposes of shock absorption and noise reduction, the oil sealing performance of the steering engine oil cylinder shell is improved, the machining difficulty of the steering engine shell is reduced, the production and installation efficiency is improved, and the service life of the steering engine oil cylinder shell is prolonged. Therefore, the purpose of prolonging the service life of the steering engine can be achieved.

The utility model discloses a modularized high-adaptation flexible floating thin-wall drill rod positioning and centering device which comprises a floating flange plate (1), a pressing plate (2), an upper protective shell (3), a floating disc (4), a groove body (5), a sleeve base (6), a reset disc (7), a compression spring (8), a steel ball (9), a fastening bolt (10), a hinge bolt (11) and a lower protective shell (12). A steel ball is placed in a groove body and then placed in a pressing plate groove, then a pressing plate is placed in an upper (lower) protective shell, a compression spring is placed between the pressing plate and a floating disc, a floating flange plate is placed to penetrate through the upper (lower) protective shell to be in close contact with the floating disc and then is connected with a reset disc through a fastening bolt, and a sleeve base is connected with the upper (lower) protective shell through the fastening bolt. And finally, the upper (lower) protective shell is connected through a hinge bolt. The utility model particularly relates to a flexible floating drill rod connecting device which has the functions of floating self-centering of a floating disc, modularization adaptation to different drill rod diameters, impact flexible compensation and rapid displacement connection. The drill rod connecting efficiency can be effectively improved, and damage to a thin-wall drill rod is relieved.

The invention discloses a method for controlling the internal quality of a spring steel casting blank. In the continuous casting process, the pulling speed is controlled to be 0.45-0.55 m / min, the specific water flow is 0.09-0.13 / kg, the superheat degree of a tundish is controlled to be 18-25 DEG C through induction heating of the tundish, the total rolling reduction of a pressing device is controlled to be 25-35 mm, and 2-6 pulling-straightening rollers are put. According to the method, the tundish is heated through induction, and the internal quality of the spring steel is improved through combination of crystallizer electromagnetic stirring and tail end electromagnetic stirring processes and a light and heavy pressing process; according to the spring steel casting blank manufactured through the method, the center porosity is greatly improved, the center porosity is smaller than or equal to 0.5 level, the center shrinkage cavity is smaller than or equal to 0.5 level, the center crack is smaller than or equal to 0.5 level, and the number of inclusions is smaller than or equal to 218 / 100 mm < 2 > (larger than or equal to 6 micrometers).

The application provides a SiMn spring steel without a full decarburization layer and a manufacturing method thereof, and the manufacturing method comprises the following steps: blank loading, heating treatment, dephosphorization treatment and rolling treatment; the heating treatment comprises a preheating section, a first heating section, a second heating section and a soaking section; the temperature of the preheating section is 600-800 DEG C; the temperature of the first heating section is 1000-1100 DEG C; the temperature of the second heating section is 1050-1200 DEG C; and the temperature of the soaking section is 1150-1250 DEG C. The SiMn spring steel prepared by the manufacturing method has a full decarburization layer thickness of 0, a total decarburization layer thickness meeting the requirement of GB standard, and a yield rate of greater than or equal to 95%.

A wire rod for spring steel and a wire made therefrom. The wire rod for spring steel contains, in addition to Fe and inevitable impurities, the following chemical elements in percentage by mass: C: 0.52-0.60%, Si: 1.60-1.80%, Mn: 0.50-0.70%, Cr: 0.60-0.80%, V: 0.05-0.09%, Ce: 0.002-0.005%, Y: 0.006-0.009%, and 0<Al≤0.002%. The wire rod for spring steel has good strength and toughness and good fatigue performance.

The utility model provides a multifunctional rocking chair for children, which comprises a rocking bar and a seat frame mounted on the rocking bar, a seat is mounted on the seat frame, a rotatable rear leg is mounted at the tail of the rocking bar, a spring steel bar is arranged between the rocking bar and the seat frame for connection, and a locking piece is arranged at the joint of the rocking bar and the seat frame. One side of the locking piece is connected with the rocker or the seat frame, and the other side of the locking piece can abut against the seat frame or the rocker so as to prevent the spring steel strip from deforming. The rocking bar and the seat frame are connected through the spring steel bar, the rocking chair is endowed with the function of bouncing through the elastic deformation of the spring steel bar, and the limitation that a traditional rocking chair can only swing or be fixed is expanded; and the locking piece directly acts on the rocking bar or the seat frame, so that the spring steel bar can be prevented from swinging, the seat frame cannot bounce and shake when a rocking chair or a common seat is seated, and the functions of the rocking chair, an elastic chair and the common seat can be flexibly and accurately switched.

The utility model relates to steel plate spring cooling equipment, and belongs to the technical field of steel plate spring production, the steel plate spring cooling equipment comprises a cooling seat, a driving motor is arranged on the right side of the cooling seat, and a rotating roller located in the cooling seat is arranged at an output shaft of the driving motor, and the other end of the rotating roller penetrates through the cooling seat; a plurality of net bag storage seats are symmetrically arranged on the left and right sides of the outer part of the rotating roller at equal intervals, and the outer part of the rotating roller communicates with a plurality of air pipes surrounding the outer parts of the net bag storage seats; according to the steel plate spring cooling equipment, a steel plate is firstly subjected to water cooling and then subjected to airflow blowing, water evaporation and surface drying can be accelerated, a water film is prevented from hindering heat exchange, the overall heat dissipation efficiency is improved, local high-temperature areas on the surface of the steel plate can be helped to be taken away through airflow discharge, and heat accumulation is avoided; and by stirring the cooling liquid and blowing air into the cooling liquid, rapid cooling of the cooled cooling liquid is accelerated, and compared with the prior art, cooling of the spring steel plate is accelerated.

The steel bar bending construction device with the angle measuring function comprises a base and a steel pipe welded to the side face of the base, a to-be-bent steel bar extends out of the steel pipe, and the steel bar bending construction device further comprises a protractor arranged at the end of the base; the spring steel is arranged on the base; the spring steel is provided with the first extending end, and the to-be-bent steel bar part abuts against the spring steel; the arc-shaped groove is formed in the protractor, and the first extending end partially extends out of the arc-shaped groove; the spring steel is provided with a second extending end connecting base; and the first scales are arranged on the protractor. One constructor can bend the to-be-bent steel bar while reading the bending angle of the to-be-bent steel bar in real time, and the bending efficiency is effectively improved. And the influence of rebound of the to-be-bent steel bar on the bending precision is reduced through the compensation value, and the bending precision of the to-be-bent steel bar is effectively improved.

A vibration friction welding amplitude positioning device comprises an upper pressing plate; the vibration spring steel is arranged below the upper pressing plate, the vibration spring steel is configured to generate reciprocating vibration through magnetic force driving, a plurality of sets of X-shaped holes are formed in the vibration spring steel, and each X-shaped hole is composed of two inclined holes which intersect with each other; the mold plate is arranged on the lower wall of the vibration spring steel; and the limiting mechanism is arranged on the upper pressing plate, is matched with the end part of the vibration spring steel and is used for limiting the vibration limit position of the vibration spring steel. Through the X-shaped hole structure arranged in an array mode, directional optimization of the mechanical property of the spring steel is achieved, in the left-right vibration process, the crossed inclined holes form a bidirectional stress guide path, vibration resistance is effectively dispersed and reduced, and rigidity adjustment is more accurate.

The utility model relates to the technical field of wire rod production, in particular to a spring steel wire shelling processing structure which comprises a bottom plate provided with a pair of compression roller sets for rolling and shelling spring steel wires, brush disc motors movably connected are further arranged on the two sides of the bottom plate in the rolling and discharging direction of the spring steel wires, brush discs are arranged at the output ends of the brush disc motors, and the brush discs are arranged on the bottom plate. And rubber bristles in contact with the spring steel wires are arranged on the brush disc. According to the utility model, impurities such as an oxide layer on the surface of the spring steel wire are stripped through mechanical rolling and brush disc friction in sequence, so that the strength of mechanical rolling can be reduced, secondary fine shelling treatment is provided through subsequent brush disc friction, and on the basis of ensuring the shelling effect, the possible mechanical damage to the steel wire is reduced.

The utility model relates to the technical field of clamps, in particular to an anti-deformation clamp for bearing machining, which comprises a base plate, a magnetic plate, a bearing body and a driving component, the top end of the base plate is fixedly connected with the driving component through a bolt, one side of the driving component is fixedly connected with a clamping component, the driving component comprises a casing, and a rail groove is formed in the inner side of the casing. A hydraulic rod is fixedly connected to the inner side of the machine shell, one end of the hydraulic rod is fixedly connected with a rail plate, one side of the rail plate is fixedly connected with a first toothed plate, the clamping and fixing assembly comprises a steel sheet, the vertical outer side of the steel sheet is fixedly connected with a direction sliding block, the horizontal outer side of the steel sheet is fixedly connected with a linear spring, and one side of the steel sheet is fixedly connected with a second toothed plate. The device can adapt to clamping and fixing of bearing workpieces with different diameters, an arc-shaped plate or other parts do not need to be replaced, the flexibility of the clamp is improved, the use range of the clamp is widened, meanwhile, deformation of the bearing in the clamping and fixing process is effectively prevented, and the machining quality is improved.

The high-resilience type spring steel wire structure comprises a left-handed outer cylindrical spiral spring and a right-handed inner cylindrical spiral spring, the left-handed outer cylindrical spiral spring and the right-handed inner cylindrical spiral spring are formed by winding high-carbon steel wires, and the right-handed inner cylindrical spiral spring is arranged in the left-handed outer cylindrical spiral spring in a sleeved mode and fixedly welded to form a high-resilience type spiral spring unit. The two ends of the left-handed outer cylindrical spiral spring are flush with the two ends of the right-handed inner cylindrical spiral spring correspondingly, the wire diameter of the right-handed inner cylindrical spiral spring is smaller than that of the left-handed outer cylindrical spiral spring, and the high-resilience type spiral spring units are arranged in a matrix mode to form a high-resilience type spring steel wire structure. The adjacent high-resilience spiral spring units are fixed together through steel wires. The spring steel wire structure is optimized, so that the spring steel wire structure has high resilience force, is not easy to deform after being repeatedly compressed for a long time, inhibits local collapse, eliminates abnormal sound, and is better in durability.

This application provides a method for preparing hot-rolled wide coils of 60Si2Mn spring steel with anti-strip breakage properties, and the hot-rolled wide coils thereof. The method includes: heating a 60Si2Mn spring steel slab to obtain a heated slab; hot-rolling the heated slab to obtain a hot-rolled wide strip steel with a width of 900-1500 mm; subjecting the hot-rolled wide strip steel to laminar flow cooling to obtain laminar flow cooled hot-rolled wide strip steel, wherein the laminar flow cooling consists of a pre-stage non-water cooling treatment and a post-stage rapid cooling treatment, with a target temperature of 760-800℃ for the pre-stage non-water cooling treatment and a cooling rate of 10-20℃ / s for the rapid cooling treatment; and coiling and cooling the laminar flow cooled hot-rolled wide strip steel to obtain hot-rolled wide coils of 60Si2Mn spring steel with anti-strip breakage properties. Using the embodiments of this application, hot-rolled wide coils of 60Si2Mn spring steel with anti-strip breakage properties can be produced, and they will not break during subsequent processing steps.

The utility model relates to the field of machining, in particular to a spring steel riveting tool which comprises a product placing seat, a rivet pushing device and a feeding device, the rivet pushing device is arranged on the side face of the product placing seat and comprises a rivet pushing seat and a rivet pushing air cylinder, the rivet pushing air cylinder is in transmission connection with the rivet pushing seat, and the rivet pushing seat is provided with a positioning pin facing the product placing seat; a feeding device is arranged on the lower side of the rivet pushing seat, a jacking mechanism and a moving mechanism are arranged on the feeding device, spring steel is placed on the jacking mechanism, and the moving mechanism transfers the spring steel on the jacking mechanism to the rivet pushing seat; and through cooperation of the rivet pushing device and the feeding device, the riveting efficiency is improved. Spring steel is jacked through the jacking mechanism of the feeding device, then the spring steel is moved and transferred to a positioning pin of the rivet pushing base through the moving mechanism, and finally the rivet pushing base is driven by the rivet pushing air cylinder to move towards the product containing base and push and rivet the spring steel to a placed product. By means of the design, automatic rivet pushing operation can be achieved, and machining efficiency is greatly improved.

The utility model relates to a pin pusher safety structure with fault safety and mistake proofing characteristics, and belongs to the technical field of fuses. Comprising a fault safety pin (1), a support lug (2), a pin pusher (3), a spring (4), a steel ball (5), a safety pin (6) and an explosion-proof piece (7), through the characteristic that the safety pin protrudes out of an outer circle after safety is released and the characteristic that the explosion-proof piece is limited in an explosion-proof position after electric safety is accidentally released in advance, the mechanism can achieve safety state recognition, the possibility that a fuse is assembled to be in a safety releasing state is avoided, and the safety performance of the fuse is improved. Meanwhile, ballistic safety can be guaranteed when the circuit function is abnormal after interference, and the safety of the product is improved.

The application discloses a buried pipeline monitoring sensor and a sensing method and inversion evaluation method thereof, and belongs to the technical field of buried pipeline monitoring. The buried pipeline monitoring sensor comprises a sensor base body, a special fixture, a bellows and an optical fiber. The special fixture is arranged at one end of the sensor base body. An arc-shaped groove is arranged below the special fixture. The bellows is sleeved outside the sensor base body. The optical fiber is attached to the upper and lower surfaces of the sensor base body. The optical fiber is connected with an OFDR demodulator device. The sensor base body is a spring steel sheet. The monitoring sensor is fixed to the outer surface of the buried pipeline. The monitoring sensor can be used for precise positioning of the buried pipeline and inversion strain evaluation of the operation state of the pipeline.

The utility model relates to the technical field of electromagnetic clutches, and discloses a canine tooth type electromagnetic clutch jaw disc integrated with a torsion damper, the canine tooth type electromagnetic clutch jaw disc comprises a damper disc, one side of the damper disc is sequentially provided with a driving disc hub, a wave-shaped spring steel sheet and a canine tooth type jaw disc, the wave-shaped spring steel sheet is arranged at an opening of the driving disc hub, and the canine tooth type jaw disc is arranged on the other side of the damper disc. Fastening mechanisms are arranged in the inner walls of the shock absorber disc, the driving disc hub, the wave-shaped spring steel sheets and the canine tooth type tooth embedding disc, and after the shock absorber disc, the driving disc hub, the shock absorber springs, the wave-shaped spring steel sheets and the canine tooth type tooth embedding disc assembly is assembled, the shock absorber disc, the driving disc hub, the wave-shaped spring steel sheets and the canine tooth type tooth embedding disc are connected in a fastened mode through the fastening mechanisms. Wherein the wave-shaped spring steel sheet can enable the canine tooth type jaw disc to obtain axial elasticity, the clutch joint softness can be improved, the shock absorber spring is assembled in the shock absorber disc, the driving disc hub and the canine tooth type jaw disc, and torsional vibration and impact borne by a transmission system can be reduced.

The utility model discloses a spring telescopic variable-diameter reinforcement cage which comprises a reinforcement cage body. Comprising a fixed end plate in a horizontal state, an axial reinforcing steel bar rod perpendicular to the circle center position of the fixed end plate, fixed reinforcing steel bars perpendicular to the round edge position of the fixed end plate and distributed circumferentially, and telescopic spring reinforcing steel bars spirally wound on the outer sides of the fixed reinforcing steel bars distributed circumferentially from the bottom end to the top end. The limiting assembly comprises a stable round plate welded to the outer side of the bottom end of the axial steel bar rod and limiting spring steel bar rings evenly distributed on the stable round plate, and one end of each limiting spring steel bar ring is provided with a limiting insertion column penetrating through the round edge of the stable round plate; the spring telescopic variable-diameter steel reinforcement cage is provided with a design for limiting the deflection of the steel reinforcement columns, through the designed limiting spring steel reinforcement rings, the bottom ends of the fixed steel reinforcements are limited, the top ends of the fixed steel reinforcements are limited by the guide rings, the fixed steel reinforcements shake in the guide rings within a certain range in the set direction, and large-amplitude deflection is avoided.

The utility model discloses a coil holder device for spring steel wire production. The coil holder device comprises a support; the three supporting legs are annularly arranged on the lower side wall of the support; the fixed cylinder is fixedly arranged on the support; the lifting supporting column is arranged in the fixed cylinder in a sliding manner; the fixed seat is fixedly arranged at the upper end of the lifting supporting column; and the fixed disc is fixedly arranged on the outer wall of the upper side of the fixed seat. Compared with the prior art, through the arrangement of the height adjusting mechanism, the height of the wire winding rod can be flexibly adjusted, the wire frame device can better adapt to various production scenes, and the coordination and adaptability of the whole production process are improved; and through the arranged limiting mechanism, the steel wire coil can be limited after winding is finished, the steel wires are effectively prevented from falling off, and disorder of the steel wires is avoided.

A fastening assembly comprises a spring steel sheet and two bolts, a connecting groove is formed in the outer wall of a connecting pipe, the spring steel sheet is installed in the connecting groove, two fixing holes are formed in the outer wall of the spring steel sheet, threaded holes are formed in the outer walls of the two steel pipe rods respectively, and the threaded holes are connected with the connecting pipe. Two bolts penetrate through the corresponding fixing holes and then are in threaded connection with the corresponding threaded holes. According to the steel pipe pole connecting and fastening device, a spring steel sheet can be additionally arranged in the fastening piece. When the bolt is fastened, the spring steel sheet can generate elastic deformation to apply continuous radial pressure to the steel pipe pole, so that a gap between a steel pipe and the fastening piece can be eliminated, additional clamping force can be provided, and connection is firmer and more reliable.

The utility model discloses a top sealing device for a drying furnace, which belongs to the technical field of drying furnace sealing, a first sealing piece comprises a C-shaped steel structure, a cavity is arranged on the side wall of the C-shaped steel structure, an aluminum silicate wool layer is arranged on the inner wall of the C-shaped steel structure, a plurality of inserting holes are arranged on the end face of the C-shaped steel structure, and the inserting holes are communicated with the cavity. An inserting hole is formed in the top of the C-shaped steel structure, an L-shaped fastening rod is inserted and connected into the inserting hole, a threaded part is arranged at the lower end of the L-shaped fastening rod, a first fastening head and a second fastening head are mounted at the threaded part, and the C-shaped steel structure is hermetically connected with the top of the drying furnace through the L-shaped fastening rod, the threaded part and the fastening heads. The aluminum silicate wool layer is laid on the inner wall of the C-shaped steel structure to provide high-temperature-resistant and heat-insulating functions, heat loss is reduced, and safety and stability of the device are enhanced. The design of the L-shaped fastening rod and the fastening head ensures firm sealing connection between the C-shaped steel structure and the top of the drying furnace. The spring steel plate replaces a rubber plate, the sealing effect of the power and free chain and the hoist conveying structure is improved, the maintenance cost is reduced, and the product quality is improved.

The utility model provides a kind of spring steel wire oiling device, belong to spring steel wire technical field.A kind of spring steel wire oiling device, characterized by, including device body, oil tank is fixedly connected in the device body middle, first support wheel is rotatably connected in the oil tank, the left side of device body above the oil tank is rotatably connected with second support wheel, the right side of device body above the oil tank is rotatably connected with third support wheel, support frame is fixedly connected on the device body between first support wheel and third support wheel, recovery mechanism is equipped on the support frame, and winding mechanism is equipped in the right side of device body.The utility model has spring steel wire and oil contact in oil tank, carries out dip coating, avoids the situation that steel wire outer surface is missed coating, after spring steel wire leaves oil tank, recovery mechanism carries out recovery to the excess oil of spring steel wire surface, avoids the advantage of causing waste.

This invention provides a fatigue-resistant high-strength spring steel and its preparation method. By synergistically designing the chemical composition of the iron-based alloy, the low-hydrogen clean molten steel intermediate, the hot rolling controlled cooling, and the quenching-partitioning heat treatment, the steel after stress relief treatment includes tempered martensite and 4-12 vol% retained austenite, and contains nano-precipitates. This results in a fatigue-resistant high-strength spring steel with a tensile strength of 2050-2250 MPa, an elongation after fracture of 8-12%, a reduction of area of ​​30-45%, and a rotational bending fatigue strength of 800-950 MPa. This invention solves the problem of balancing ultra-high strength and long-life fatigue resistance, and the difficulty in achieving both cold-rolling forming processing window and post-stress relief microstructure and dimensional stability. It is suitable for the preparation of high-load spring components.