147 results about "Trunnion" patented technology

The invention discloses a welding slag ladle for containing copper slag and a design method. The welding slag ladle is suitable for containing, cooling and inverted placing procedures of high-temperature copper slag. The cinder ladle comprises a cylinder body, a ladle bottom, rib plates, trunnions and supporting legs, the cylinder body and the ladle bottom are formed by welding high-temperature-resistant and high-strength rolled plates, the thickness of the cylinder body is 70-100 mm, and the thickness of the ladle bottom is 80-120 mm; setting an inclination angle beta of 11.5-21 degrees relative to the center line of the bus of the cylinder body, and controlling the roughness of the inner wall to be less than or equal to 12.5 microns so as to reduce the separation resistance after the copper slag is cooled; thickness combination, stress distribution, deformation and rib plate arrangement are optimized through structural mechanical simulation, and it is ensured that the structural strength meets the requirements under high temperature and thermal cycle loads; full penetration weld joints are adopted, nondestructive testing is carried out, and the welding reliability is guaranteed; compared with a traditional casting cinder ladle, the mass of the cinder ladle is reduced by 10%-15%, the deslagging efficiency is improved, the service life is prolonged to more than two times of the original service life, and the cinder ladle has the advantages of being light in structure, high in bearing capacity, high in deformation resistance and good in maintainability.

The application discloses a double-safety-redundant tilting actuator of a tilt-rotor unmanned aerial vehicle, which comprises a ball screw mechanism and lug connections and trunnion connections installed on the ball screw mechanism; the lug connections are fixed on the wing ribs of a wing, and the trunnion connections are fixed on a nacelle; the ball screw mechanism is configured to drive the nacelle to rotate correspondingly synchronously with extension and retraction actions of the ball screw mechanism; wherein the ball screw mechanism comprises two-stage serial ball screws and two independent driving mechanisms; the two driving mechanisms are configured to independently control the two-stage serial ball screws to complete all extension and retraction actions, so that the operation of the aircraft is safer and more reliable; when any one-stage ball screw is damaged or stuck at a certain angle to cause the ball screw to be unable to retract, the other one-stage ball screw can still normally operate, the nacelle can still rotate within a certain angle, the function of aircraft landing and taxiing can be realized, and the aircraft can be safely landed.

The invention provides a rotor turnover device, and relates to the technical field of gas turbine equipment. The rotor overturning device comprises a supporting platform which comprises a first support, a second support and a third support; the two rotating shaft limiting assemblies are respectively fixed on the first bracket and the second bracket; two trunnions are arranged on the switching disc and are respectively embedded into the two rotating shaft limiting assemblies; the transfer hanging ring is fixedly connected with a front journal of the rotor; the limiting rotary supporting plate is fixedly arranged on the third bracket; and a front journal of the rotor is embedded into the limiting rotary supporting plate. The rotor turnover device can perform multi-degree-of-freedom turnover on the gas compressor rotor, one lifting point is reduced compared with a traditional turnover mode, the requirement for the operation ability of operators is weakened, the possibility of risk generation in the rotor turnover process is reduced, and reliable and safe multi-degree-of-freedom turnover work of the gas compressor rotor is achieved. And therefore, the overturning efficiency and safety are improved, and the stability of multi-degree-of-freedom and multi-angle overturning of the gas compressor rotor is improved.

The application discloses a vertical kneader facilitating discharging, which is applied to the technical field of vertical kneaders and comprises a cross beam, a lower barrel body, a base, a stand and a material containing barrel, wherein the bottom surface of the cross beam is provided with a camera at the front part, one side of the stand is fixedly provided with a control center, the front surface of the stand is fixedly provided with a mechanical arm at the middle part, the top structure of the mechanical arm is in the shape of a hammer, support frames are threadedly connected to the two sides of the stand, a turnover assembly is arranged on the support frame, and a groove is formed in the front end of the support frame. The application drives the turnover assembly, so that the turnover output rod drives the trunnion, the trunnion drives the lower barrel body to turn over, the slurry is conveniently poured out, the reinforcing ring provided with a vibrator is arranged, the vibration makes the residual slurry on the inner wall of the lower barrel body flow down, the mechanical arm is arranged to knock the bottom of the lower barrel body, and the residual slurry on the inner bottom of the lower barrel body flows down. The device solves the problem that the kneader is inconvenient to discharge.

The invention provides a hydraulic servo oil cylinder trunnion positioning and repairing method and a positioning device, which are used for carrying out in-situ welding and repairing on a fractured oil cylinder trunnion, and the method comprises the following control conditions: (1) heating an oil cylinder barrel before welding and carrying out heat preservation on the oil cylinder barrel after welding; (2) the tensile strength of the selected welding rod is higher than that of an oil cylinder barrel matrix; and (3) the welding rod is baked and heated before welding.

The invention discloses a cutting device for refractory material processing, and relates to the technical field of building block manufacturing, and the cutting device comprises an adjustable cutting assembly. According to the cutting device for refractory material machining, the cutting head only makes contact with materials in the advancing process and is automatically lifted and separated in the return stroke, scraping damage to a notch in the returning process can be eliminated, the ineffective stroke can be effectively shortened, the service life of a cutter can be effectively prolonged, and when a user needs to adjust the cutting angle to achieve oblique cutting, the cutting head can be automatically lifted and separated. The movable plate can be driven to adjust the cutting angle within the arc range of the angle adjusting plate only by pulling out the plug pin, driving the movable plate to rotate with the trunnion as the axis and re-inserting the plug pin into the partition gap of the corresponding angle, so that the cutting angle can be adjusted within a certain range, and the cutting efficiency is improved. Angle deviation of the movable plate is achieved through simple and convenient operation, switching between vertical cutting and oblique cutting is achieved, and the machining requirements of different notch angles of refractory materials are met.

The present invention relates to an agricultural machine comprising at least one working tool and a hitch frame by which it is connected to a tractor and which includes a crossbar and two levers, each lever carrying a respective trunnion intended to be attached to a respective lower arm of the tractor and capable of moving vertically relative to the crossbar, each lever being associated with a return device capable of exerting a force on the associated lever when the respective trunnion moves vertically relative to the crossbar, the machine being able to occupy a working configuration in which the tool or tools are close to the surface and at least one transport configuration, in which the tool or tools are further from the surface than in the working configuration, each return device comprising a hydraulic return cylinder fixed to the respective lever on one side and to the crossbar on the other side.Each return cylinder is hydraulically connected to a hydraulic reservoir in the working configuration. Figure to be published with the abbreviation: Fig. 1,

The utility model relates to the technical field of circuit protection, in particular to an energy-saving explosion-proof leadless resistor fusing device, which comprises a base mechanism, the base mechanism comprises a high-strength insulator, the lower end of the high-strength insulator is fixedly connected with a trunnion used for connection, the lower end of the trunnion is fixedly connected with a trunnion sleeve, the trunnion sleeve is rotatably connected with a fusing mechanism, and the fusing mechanism is connected with the high-strength insulator. The fusing mechanism comprises a fuse tube, the fuse tube is hollow, quartz sand is arranged in the fuse tube, the lower end of the fuse tube is fixedly connected with a lower metal hoop, the lower metal hoop is rotationally connected with the trunnion sleeve, an exhaust channel is arranged in the lower metal hoop, a groove is formed in the upper surface of the lower metal hoop, wood alloy is connected in the groove in a sleeved mode, and the wood alloy is arranged in the groove. According to the energy-saving anti-explosion leadless resistor fusing device, special anti-explosion structures and materials are adopted, and when the energy-saving anti-explosion leadless resistor fusing device is fused, rising of the internal pressure can be dredged, the shell is prevented from being broken and exploded, and the safety of surrounding personnel and equipment is ensured.

The present application relates to the technical field of metallurgical equipment, and discloses a conveying device for slag treatment, a main hook assembly connected to a first hoisting chain and a secondary hook connected to a second hoisting chain are arranged on a hoisting vehicle, the main hook assembly comprises a hoisting plate connected to the first hoisting chain, a first side plate and a second side plate are arranged in a hinged manner opposite to the hoisting plate, a hook plate and the first side plate form a hook cavity, a disengaging clamp cavity penetrating up and down is formed between the second side plate and a third side plate, and an inlet clamp cavity is formed between the third side plate and the hook plate. Through the structure design of the exquisite buckle plate, guide plate and counterweight plate in the main hook assembly, automatic hooking and automatic unhooking of the trunnion are realized. The whole process does not need manual intervention and can be completed by only controlling the lifting of the hoisting chain, so that the workers are completely liberated from the high-temperature and high-risk unhooking operation, and the safety and automation level of the operation are greatly improved.

A fan assembly for a gas turbine engine includes a fan actuation system, a fan blade hub, a plurality of fan blades, and a counterweight system arranged disconnected from the plurality of fan blades. The counterweight system includes a counterweight hub, and a plurality of counterweight levers each having a counterweight trunnion rotationally connected to the counterweight hub, a cantilever arm with a counterweight connected thereto. The fan blades are rotationally connected to the fan blade hub and to the fan actuation system, and the counterweight levers are rotationally connected to the counterweight hub and to the fan actuation system. The fan actuation system is arranged to correspondingly rotate each of the plurality of fan blades about a respective fan blade pitch change axis, and each of the plurality of counterweight levers about a counterweight lever rotational axis in unison.

Rifle systems and methods of making the same are provided. The rifle system is made using alternative manufacturing methods, such as advanced additive manufacturing ("AM") techniques, also referred to as 3D printing. Further included are an improved trigger housing, an improved bolt retention mortise system configured for bilateral operation, an improved magazine well, an improved trunnion, and a bilateral operation release assembly.

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.

Disclosed is a tank that retains a large amount of fluid in a safe manner. The tank can be easily and rapidly constructed and disassembled for subsequent use. A liner has lifting straps that are lifted by winch booms connected to booms. Exterior securing straps are used to hold the liner in place. Connecting plates are secured to trunnions on each of the panels. Pressure pins allow the connector plates to flex so that the panels can form a round or oval tank. The panels are constructed in a curved fashion to create the round or oval tank wall.

The invention relates to the technical field of molten metal feeding devices, discloses a molten metal feeding device for continuous casting of aluminum alloy plates, and aims at solving the problem that after molten metal on one side of the molten metal feeding device is poured out, torque of supporting structures on the two sides is unbalanced, and consequently a base is abraded unevenly. When the melt barrel is placed, the trunnions of the melt barrel extrude the limiting arc blocks, and the positions of the balancing weights are adjusted according to the gravity of the melt barrel borne by the limiting arc blocks and the supporting springs, so that the torque of the supporting arms on the two sides of the base to the base is adjusted, and the torque of the supporting arms on the two sides to the base is balanced; uneven abrasion during operation of the base caused by unbalanced torque on the two sides of the base is prevented; when a limiting arc block moves downwards, a spiral strip is driven to rotate, the spiral strip pushes an elastic fixing block to extrude towards the outer side wall of a melt barrel, and therefore the elastic fixing block extrudes and fixes the outer side wall of the melt barrel, and the situation that when a base rotates, the melt barrel on a supporting arm shakes around a trunnion, and consequently melt in the melt barrel is splashed is prevented.

The application relates to a reliable and convenient small cutter suction dredger bridge frame trunnion connection method, wherein a main float tank is connected with a main bridge frame of a bridge frame system through a trunnion structure; step one, main float tank reinforcing structures are welded on the two sides corresponding to the connection between the main float tank and the bridge frame system, main float tank sleeves are welded on each main float tank reinforcing structure; bridge frame reinforcing structures are welded on the two sides corresponding to the connection between the main bridge frame of the bridge frame system and the main float tank, bridge frame sleeves are welded on each bridge frame reinforcing structure, and sliding bearings are installed in the bridge frame sleeves; a bearing end cover and a small handle are sequentially welded at one end of the trunnion to form a combination; step two, the bridge frame system is hoisted to the main float tank through hoisting equipment, the combination of the trunnion is inserted into the main float tank sleeve and the bridge frame sleeve, and is fixed through bolts, and the bridge frame connection is completed. The application is simple in operation, convenient in use and installation, strong in reliability, easy to maintain and disassemble, can guarantee the connection strength, and can meet the requirements of normal ship construction.

This invention discloses a dual-circuit cooling system for converter rings and its control method, relating to the field of metallurgical equipment cooling technology. The dual-circuit cooling system includes a dual-path independent water supply network, comprising a dedicated line to the furnace mouth, a dedicated line to the furnace chamber, and a dynamic balancing valve group. The control method for the dual-circuit cooling system specifically includes the following steps: the furnace mouth loop uses ambient temperature water, with the water temperature ≤35℃, to achieve rapid cooling of the high heat load area; simultaneously, the furnace chamber loop uses a heat exchanger for pre-cooling, with the pre-cooling temperature ≤60℃, to prevent high-temperature return water from impacting the rings. This invention utilizes existing pipe supports to lay new pipelines, achieving zero additional land occupation. Furthermore, the high-temperature return water from the furnace mouth does not flow through the furnace chamber, reducing the system heat load by 40%, resulting in better thermodynamic optimization. Through dual-path independent metering and closed-loop control, the inlet flow rate of the rings is stabilized at 50±2 m³ / h, achieving precise flow rate regulation.

The utility model discloses a die blowing cooling lubrication device for a die forging hydraulic press, which comprises a spray head, a support, a hydraulic cylinder and a guide pillar, the spray head is mounted on the support and positioned above the support, the hydraulic cylinder is fixed on a centering device through a fixed support, and the telescopic end of the hydraulic cylinder is connected with the support through a pin shaft. The guide pillar is fixed on the centering device through a trunnion support, and one end of the guide pillar is fixedly mounted on the bracket; the spray head is of a circular ring structure and comprises at least one liquid pipeline and at least one gas pipeline which are concentrically arranged, the two pipelines are in one-to-one correspondence, and when a plurality of liquid pipelines and a plurality of gas pipelines are arranged, the liquid pipelines are communicated, and the gas pipelines are communicated; a plurality of liquid path nozzles are uniformly arranged on the two sides of each liquid pipeline respectively, and a plurality of gas path nozzles are uniformly arranged on the two sides of each gas pipeline respectively. Abrasion and fatigue of the surface of the die can be reduced, the problems of die purging, cooling and lubricating are solved, working efficiency is improved, and the service life of the die is prolonged.

The present application relates to a kind of adjustable output angle ball screw pair servo mechanism and its adjusting method, belong to servo drive system technical field, solve the problem that the stroke of ball nut is difficult to limit and the volume of ball nut is large in prior art.The ball screw pair servo mechanism of the present application is cooperated with guide rail by the lug on the ball nut, and the ball nut is made to slide along the guide rail;When the trunnion on the ball nut moves, it can drive the output shaft to rotate.The displacement stroke of ball nut is limited by adjusting the position of the two limiting structures on the guide rail, and finally the maximum deflection angle of the output shaft is limited.The present application can avoid the problems of ball deformation or deviation from raceway, ball nut jamming and unable to return to zero or rudder out of control caused by the movement range of ball nut exceeding the maximum stroke.

This utility model discloses a highly stable spider car hydraulic cylinder, including a cylinder barrel, a piston rod, and a stabilizing and limiting assembly. The piston rod is located on one side of the cylinder barrel, and trunnions are fixed to both the tail end of the cylinder barrel and the front end of the piston rod. A stabilizing and limiting assembly is installed on the outer side of the piston rod and cylinder barrel. The stabilizing and limiting assembly includes an outer ring sleeve, a fixing block, guide rods, a limiting block, an infrared transmitter, and an infrared receiver. By setting up the stabilizing and limiting assembly, this utility model drives the outer ring sleeve to move synchronously during the extension and retraction of the piston rod, thereby driving the fixing block and guide rods to extend and retract. This allows the three guide rods to slide within the guide frame, providing guidance and limiting the piston rod's sway, making the piston rod movement more stable. Furthermore, the three guide rods provide multi-dimensional support, thereby distributing the radial load on the cylinder barrel and piston rod.

The utility model relates to a hydraulic oil cylinder with external protection structure belongs to hydraulic oil cylinder technical field, including hydraulic oil cylinder main part, spiral reinforced telescopic cover, honeycomb guard, hydraulic oil cylinder main part is provided with piston rod, hydraulic oil cylinder main part and piston rod all are installed with trunnion, the both ends of spiral reinforced telescopic cover are connected through screw with hydraulic oil cylinder main part and piston rod respectively, hydraulic oil cylinder main part evenly fixedly installed has dovetail groove, honeycomb guard is inserted in dovetail groove, and the limiting bottom plug is inserted in dovetail groove and is positioned through screw. The utility model, set up honeycomb guard compared with traditional solid steel plate or plastic guard can have better impact resistance, and the weight is lighter, adopts split type design to facilitate the damaged piece to disassemble and replace, honeycomb structure attenuates vibration energy, improves the anti -vibration performance, and the honeycomb guard shell can effectively resist the rigid impact to the oil cylinder, especially suitable for mine, metallurgy, engineering machinery and other severe environment.

Provided is a horizontal machine tool including a trunnion table and capable of being divided. The horizontal machine tool includes: a main frame; a spindle moving device disposed on the main frame; a spindle head supported by the spindle moving device in a movable manner in an X-axis direction, a Y-axis direction and a Z-axis direction, the spindle head having a spindle extending horizontally; a front frame disposed in front of the main frame; a trunnion table disposed on the front frame in a movable manner in a W-axis direction parallel to the Z-axis direction, the trunnion table rotatable about an A-axis parallel to the X-axis direction; and a connection block connecting the main frame and the front frame.

The utility model relates to robot technical field, concretely relates to a compound robot with the function of carrying goods, include: the robot body with the function that travels and install the grabbing manipulator on its upper surface one end, the top of robot body is connected with rotating component, the top of rotating component is connected with the bearing platform frame of rectangle, the both sides of robot body are connected with the inclined swing type support leg mechanism respectively, the inclined swing type support leg mechanism includes the inclined mounting seat and the inclined swing rod, the side surface of inclined mounting seat is connected with the side of robot body, the side surface of inclined mounting seat is connected with the limit stop, the inclined swing rod's oblique upper end is connected through the trunnion between the inclined mounting seat, and the oblique lower end is connected with the support leg rod body, still include the telescopic drive part of driving the swing of inclined swing rod, the utility model discloses reasonable in structure, has strengthened use safety and use convenience.

Title: Quick coupler device in two connecting parts, intended for attaching a tool to the end of the arm of a machine. Quick coupler device, intended for attaching a tool, such as a bucket, to the end of the arm of a machine, such as a hydraulic excavator or similar, comprising a first connecting part intended to be attached to the bucket and a second connecting part intended to be attached to the arm, the first part comprising a base plate having a front edge and a rear edge, a coupling trunnion, or hook, respectively, extending from the underside of the base plate and a locking hook extending from the upper side of the base plate, the second part comprising a hook, or trunnion, respectively, intended to couple to the coupling trunnion, or hook, respectively, of the first part and a slidingly mounted locking plate preloaded by spring-like means.The locking hook of the first part, intended to pass through a through opening formed in the sliding locking plate of the second part, to hook onto an edge of the opening after the locking plate slides to ensure the locking of the quick-release fastener device, is characterized in that the front edge of the base plate of the first part defines a notch, in particular of flared shape. Figure for the abbreviation: Fig. 1,

The utility model relates to a special tool for treating steel wire rope out of groove belongs to metallurgical industry crane equipment technical field. Technical scheme is: U type clamping plate (1) is one, screw rod (2), hook (3), turnover bracket (4), nut (5) and shaft sleeve (6) are two, and turnover bracket (4) is the integral structure of the middle supporting ring (8) and two side trunnions (7) welding, screw rod (2) passes through in the middle supporting ring (8) movably, nut (5) is welded on hook (3), nut (5) is connected on screw rod (2), shaft sleeve (6) is welded on both sides of U type clamping plate (1), and the shaft sleeve (6) of both sides of U type clamping plate (1) is sleeved on the trunnion (7) in turnover bracket (4), and the whole is left-right symmetrical arrangement. The utility model has the beneficial effects that: the steel wire rope can be conveniently and quickly handled from the out of groove failure in the pulley, and will not cause harm to the steel wire rope.

Animal containment barrier, consisting of a side panel with a frame comprising longitudinal members (20, 23) and at least one upright (22), the barrier comprising an access gate mounted via a hinged system on the frame, the hinged system providing two possible axes of pivot, namely a first pivot with a horizontal axis (X1) parallel to the side panel and a second pivot with a vertical axis (Z1), the hinged system comprising an intermediate shaft, mounted to pivot with a horizontal axis on the frame, in a vertical position when the access gate is closed, wherein the frame is equipped with a bearing configured to receive a latch rod or a trunnion, connected to the access gate, at a distance from the intermediate shaft, and wherein the access gate is mounted to pivot relative to the intermediate shaft. Figure 8

The utility model relates to the technical field of forging processing, and discloses a forging device of a trunnion forge piece, which comprises a forging table, two material guide chutes are arranged in the forging table, and top channel openings of the two material guide chutes are positioned on the top plane of the forging table; two mounting grooves are formed in the forging table, and a collecting box with an upward box opening is mounted in each of the two mounting grooves; the two collecting boxes are in one-to-one correspondence with the two material guide chutes, and a bottom chute opening of each material guide chute is communicated with the corresponding collecting box; a scraping plate is slidably mounted on the top table top of the forging table, and top channel openings of the two material guiding chutes are located on the sliding track of the scraping plate. A movable seat is mounted at the top of the forging table, and a clamping and overturning assembly is mounted on the movable seat; a power piece for driving the movable base to move up and down is installed on the forging table, and the scraper is in transmission fit with the movable base through a linkage assembly. Manual participation is not needed, the automation degree is high, meanwhile, the safety risk is reduced, and the machining efficiency is improved.

The utility model discloses a geological radar antenna support for tunnel detection, which comprises a mounting table, the mounting table is fixed at the top of an extension frame, the extension frame is inserted into a lifting frame, the lifting frame is inserted into a rotating frame, the rotating frame is rotatably connected with a top frame through trunnions on two sides, the top frame is provided with four supporting legs, the supporting legs are of telescopic structures and are arranged on a base, and the base is provided with a base. And universal wheels are arranged below the base. The geological radar antenna can be conveniently driven to lift and incline, geological detection work can be conveniently carried out on the top and the side wall in a tunnel, the structure is simple, operation is stable and safe, operation is convenient and fast, the device can be suitable for geological detection work of tunnels of different types and different sizes, and the application range is wide. The device not only improves the convenience of the detection work, but also reduces the risk of accidents caused by manual operation, improves the safety of the detection work, saves time, labor and cost, and is safe and reliable.

This invention relates to the field of hydraulic mud gun technology, specifically to a novel hydraulic mud gun with visualized mud output and its working principle. It includes an adjustment structure, a mud gun structure, and a display structure positioned between the adjustment structure and the mud gun structure. The adjustment structure includes two sets of base frames, a fixed base and a deflection base mounted on the top base frame, a deflection arm mounted on the deflection base, and a support arm fixed to the end of the deflection arm. The top of the fixed base is fixedly connected to a mounting plate in the display structure. The mud gun structure includes a mud gun tube and a connecting arm fixed to the outer wall of the mud gun tube. An external power device is precisely matched with a drive rod via a single-sided trunnion to ensure stable power transmission. The outer thread of the drive rod engages with two sets of positioning block threads with opposite rotation directions, precisely converting the rotation of the drive rod into the axial relative movement of the positioning blocks, thereby driving the deflection arm, support arm, and connecting plate in linkage to achieve precise adjustment of the mud gun tube's posture.

A constant velocity joint spider and constant velocity joint therewith, wherein the constant velocity joint spider has an annular body with a through bore extending along a central axis and a plurality of trunnions. Each trunnion has an outer surface extending radially outwardly from the annular body to a free end. Each outer surface defines at least one running surface. Each free end has a first portion having a first radius and at least one second portion having a second radius, the at least one second portion extends between the first portion and the at least one running surface. The first radius is greater than the second radius.

This invention relates to the field of metallurgical technology and discloses a high-efficiency, energy-saving, and safe 150-ton converter, comprising a converter body, a support ring, a lower suspension device, a tilting device, a slag-blocking skirt, a sliding plate slag-blocking device, trunnion bearings and supports, a bottom blowing system, a thin oil lubrication system, furnace body piping, and an infrared slag detection instrument. The converter has a furnace volume ratio greater than 1, and the bottom blowing system is equipped with 10 bottom blowing elements. The converter body is connected to the support ring via a lower suspension device, which is a connection device between the converter body and the support ring formed by three sets of vertical linkage mechanisms, two sets of horizontal linkage mechanisms, and a baffle device. This high-efficiency, energy-saving, and safe 150-ton converter reduces the number and amount of slag splashing, reduces the amount of slag entering the molten steel, saves cooling water consumption, increases the tilting speed, and increases the bottom blowing intensity, thereby improving the efficiency and quality of steel smelting.