456 results about "Trunnion" patented technology

Apparatuses, systems, and methods are disclosed for use in or with firearms. A firearm receiver includes an elongated channel machined or 3D printed from a metallic material, and has a front end and a rear end. The firearm also includes a front trunnion having a rear portion coupled to the front end of the elongated channel and having a front portion configured to couple to a handguard. Also includes is a rear trunnion coupled to the rear end and configured to receive an accessory adapter.

The utility model relates to an automatic slag ladle tipping system, which comprises a foundation, a slag transporting vehicle, a trolley, a tipping device and a control mechanism, the slag transporting vehicle can transport a slag ladle to walk on the foundation, the trolley can move to a ladle placing position and a tipping racking position on the foundation, the trolley can bear the slag ladle, and the tipping device is arranged on the control mechanism. The tipping device comprises a fixing base, a tipping supporting frame, a shaft supporting base, a locking mechanism and a tipping driving mechanism, the tipping supporting frame is installed on the fixing base in a turnover mode, the shaft supporting base is fixed to the tipping supporting frame, the locking mechanism can lock a trunnion located on the shaft supporting base, and the tipping driving mechanism drives the trunnion to rotate. The tipping driving mechanism can drive the tipping support frame to forwards overturn to a dumping position or backwards overturn to an upper tank position, and when the tipping support frame is located at the upper tank position, a slag tank frame on the trolley located at the tipping upper frame position is placed on the tipping support frame; and the control mechanism is in control connection with the trolley, the locking mechanism and the tipping driving mechanism respectively.

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 utility model provides a novel structure trunnion and grinding roller device, which comprises a grinding roller head and two trunnions respectively arranged on two sides of the grinding roller head, a connecting sleeve is arranged on each grinding roller head, and the trunnions are inserted into the connecting sleeves; in other words, the grinding roller head and the trunnion adopt a socket and spigot type flexible connection structure, so that the bearing capacity requirement of the trunnion and the grinding roller head in the operation working state is met, and the problems that the joint of the grinding roller head and the trunnion is cracked and a bolt is easy to break in the prior art are thoroughly solved; the trunnion and the grinding roller head can be directly mounted and used and can be universally exchanged with other parts, so that the requirements on safety performance and economic performance are met; the bushing is arranged between the trunnion and the grinding roller head to serve as a damping structure, and the bushing is made of a high-temperature-resistant and wear-resistant flexible material, so that the grinding roller head and the trunnion are connected more stably, the matching degree is higher, and the service life is greatly prolonged; even, the service life of the product can be greatly prolonged, the replacement period of spare parts of the coal mill is greatly prolonged, and the operation and maintenance cost of the coal mill can be obviously reduced.

The present application is directed a Joint Revision Surgery Apparatus which includes a surgical knife blade guide block which has a plurality of rearward blade guide slots, a central cavity and a large forward slot having an adjustable knife blade guide pressure plate. The surgical knife blade guide block central cavity houses a stem trunnion securing member and is positioned over the trunnion end of the existing prosthesis to be removed and secured to the prothesis. The guide blade block is secured to the trunnion of the prosthesis to be extracted using a stem trunnion securing member housed within the guide block. Straight, curved and compound curved knife blades are guided by the blade guide slots to cut the prothesis free. The Joint Revision Surgery Apparatus facilitates rapid, efficient and complete removal of an existing prosthesis during joint revision surgery, and significantly increases positive medical outcomes for joint revision procedures.

The invention provides a crown block operation monitoring method and system, relates to the technical field of remote monitoring of crown blocks, is applied to ground monitoring equipment, and specifically comprises the following steps: acquiring crown block position information of a target crown block from crown block control equipment; target information of target operation executed by the target crown block is determined according to the crown block position information, the target operation comprises ladle hanging operation and / or ladle removing operation, the ladle hanging operation is operation of hanging a plate hook of the target crown block into a trunnion of a target steel ladle, and the ladle removing operation is operation of removing the plate hook from the trunnion; the target information is sent to the crown block control equipment, so that the crown block control equipment controls the target crown block to enter a target range to execute the target operation; when it is determined that the target crown block enters the target range, first identification information and second identification information are obtained, the first identification information is obtained by monitoring the target crown block through a two-dimensional identification technology, and the second identification information is obtained by monitoring the target crown block through a three-dimensional identification technology; and monitoring whether the target crown block successfully executes the target operation or not according to the first identification information and the second identification information.

The invention relates to a cutter suction dredger complex section accurate excavation control method and system, and the method comprises the steps: firstly constructing a design section based on geological survey data or construction scheme parameters, and collecting the data of high-precision positioning equipment and related sensors in real time; comprise ship positioning latitude and longitude coordinates, a bridge angle, trunnion draft, a tide level, a compass direction, a trolley stroke and a transverse moving winch cable speed, and the digging depth, the coordinates, the lifting and lowering speed and the transverse moving speed of the reamer are calculated by combining ship type parameters; the method comprises the following steps: firstly, acquiring a reamer coordinate, then acquiring a slope ratio, a sideline coordinate and a design depth of a current design section through the reamer coordinate, calculating a deviation between the reamer position and the design section in real time, and finally, automatically adjusting motion parameters of a reamer through a system built-in control model in a set excavation mode to ensure that an excavation track of the reamer accurately follows the design section. The efficient, accurate and uniform excavation effect is achieved, and the construction accuracy and efficiency of complex section excavation can be remarkably improved.

The invention discloses a design method of an ultra-large-span tide gate with a self-stabilizing structure. The tide gate comprises gate foundations arranged on the two sides of a riverway estuary, and each gate foundation is provided with an arc-shaped guide groove and a spherical supporting hinge; the spherical trunnions are connected with one ends of the water retaining gates, the other ends of the water retaining gates make contact with each other to be in a closed state when storm surge comes, and the closing point of the water retaining gates is located on the open sea side of the connecting line of the two spherical trunnions. An arc-shaped stability maintaining piece matched with the arc-shaped guide groove is arranged in the arc-shaped guide groove, one end of the arc-shaped stability maintaining piece is fixedly connected with the water retaining gate, and the other end of the arc-shaped stability maintaining piece is connected with the hoist. Navigation and the hydrological river regime of the original river channel are not affected in the processes of structural design, manufacturing, processing, transportation, installation, overhaul and maintenance and the like, and the influence on the original river channel can be reduced to the maximum extent.

A trunnion bar locker assembly for a rear load refuse vehicle for use when dumping a refuse container having a trunnion bar, includes a pair of spaced apart locking assemblies, each locking assembly further including a base frame to be connected to the refuse vehicle, a trunnion bar receiver connected to the base frame, a locker door connected to the base frame and having an open position wherein the trunnion bar receiver removably receives an end of the trunnion bar of the refuse container, and a closed position wherein the pivotable locker door confines the end of the trunnion bar in the receiver, an electrically powered actuator coupled to the base frame and to the pivotable locker door, and a controller connected to each respective locking assembly to control the actuator to move the pivotable locker door between the open and closed positions.

A blancher includes a tank and auger. The tank has a wall defining an interior space at least partially cylindrical with end walls. The auger is in the interior space and has flights Each flight has a circumferential edge in close proximity to the wall. The flights move food product from one end to the other as the augur is turned. The auger is preferably supported by a trunnion ring extending through the end wall and as the trunnion ring turns the augur and of flights are turned. An inlet is preferably located at one end wall and located along a center line of the augur. An outlet is preferably a discharge chute extending through the other end wall. The auger preferably includes at least one lifting flight between the plurality of flights and the end, such that the lifting flight lifts the food product to the discharge chute.

The invention discloses a ship lift accident safety mechanism thread pair gap detection device and method. The device mainly comprises a laser gap detection assembly and a via hole electric slip ring assembly. The laser gap detection assembly comprises a hoop, the hoop is mounted on the spherical trunnion, a spiral support supporting surface is mounted at the upper end of the hoop, a plurality of laser sensors are mounted on the spiral support supporting surface, and the plurality of laser sensors are spirally distributed and have the same lead angle as the safety screw; the plurality of laser sensors emit laser in the radial direction of the spherical trunnion, and the laser is vertically emitted to the nut column 1; the via hole electric slip ring assembly comprises a stator and a rotor. The lower end of the stator is mounted on the upper guide frame, the rotor is mounted on the spherical trunnion, a conducting ring is embedded in the rotor, an electric brush is embedded in the stator, and the conducting ring is in contact with the brush; the via hole electric slip ring assembly is used for supplying power to the laser sensor; meanwhile, the via hole electric slip ring assembly transmits data detected by the laser sensor to the PLC. According to the ship lift accident safety mechanism thread pair gap detection device and method, real-time detection of the thread pair gap can be achieved.

The utility model discloses a locking type hydraulic cylinder for a supporting platform of an under-pressure operation machine, which comprises a cylinder body and a Tr tooth piston rod slidably connected in the cylinder body, one end of the Tr tooth piston rod is connected with a ball head and a locking trunnion assembly, the ball head is connected with a supporting assembly, and the Tr tooth piston rod is connected with a locking trunnion assembly. The inner wall of the end, arranged in the cylinder body, of the Tr tooth piston rod is connected with an inner guide sleeve, the inner guide sleeve is fixed to the end of the Tr tooth piston rod through an inner gland, the inner guide sleeve and the inner gland are both arranged on the inner piston rod in a sliding and sleeving mode, one end of the inner piston rod is fixed to the cylinder body, and the other end of the inner piston rod is connected with an inner piston. The inner piston is connected to the inner wall of the Tr tooth piston rod in a sliding mode, two oil ports are formed in the cylinder body, a lower platform supporting block is installed on the outer wall of the cylinder body, and the cylinder body is connected with the supporting platform through the lower platform supporting block. The hydraulic locking device is simple in structure, can be mechanically locked after being lifted to a proper position, does not need to maintain hydraulic pressure, is high in reliability, and has simple requirements on a hydraulic system.

The present application is directed a Joint Revision Surgery Apparatus which includes a surgical knife blade guide block which has a plurality of rearward blade guide slots, a central cavity and a plurality of guide slots having a two-way adjustable L-shaped guide plate. The surgical knife blade guide block central cavity houses a stem trunnion securing member and is positioned over the trunnion end of the existing prosthesis to be removed and secured to the prothesis. The guide blade block is secured to the trunnion of the prosthesis to be extracted using a stem trunnion securing member housed within the guide block. Straight, curved and compound curved knife blades are guided by the blade guide slots to cut the prothesis free. The Joint Revision Surgery Apparatus facilitates rapid, efficient and complete removal of an existing prosthesis during joint revision surgery, and significantly increases positive medical outcomes for joint revision procedures.

A swirl recovery vane (SRV) includes a trunnion configured to pivotally connect to an exterior surface of an inner platform of an SRV structure system. The SRV includes a body extending radially from the trunnion to an unshrouded distal vane tip of the vane. The SRV includes a heat exchanger that includes a gas inlet configured to couple a bleed air valve of a compressor section of a gas generator to a gas channel. The heat exchanger includes the gas channel adapted to: enable gas to flow into the gas inlet as cool gas and out through a gas outlet as warm gas; and extend into the body of the vane to enable heat transfer from a heat source within the vane to the cool gas. The heat exchanger includes the gas outlet configured to output the warm gas from the channel to an ambient environment outside of the vane.

A multipod joint having an outer joint part with a first longitudinal axis and a cavity which runs parallel to the first longitudinal axis and which has an open end. At least two recesses running parallel to the first longitudinal axis are distributed along a circumferential direction, which extends around the first longitudinal axis. The joint has a joint inner part with a second longitudinal axis, comprising at least one central body on which at least two trunnions are formed with trunnion axes extending radially from the second longitudinal axis. A roller body rotatable at least about the trunnion axis is arranged on each trunnion.

A stator vane assembly (10) and a method for assembling a stator vane assembly (10) of a turbomachine, the stator vane assembly (10) including a plurality of variable stator vanes (11) whose stator vane platform (12) has a stator vane trunnion (13) that is mounted in a receiving opening (14) of a casing (15) of the turbomachine; a stator vane head (16) of the stator vane (11) having a bearing trunnion that is mounted on an inner ring (19) disposed on a rotor (119) of the turbomachine. In the method, a stator vane trunnion (13) disposed on a stator vane platform (12) of a stator vane (11) is inserted into a receiving opening (14) of a casing (15), which receiving opening (14) is disposed radially with respect to a rotor axis of the turbomachine, and an inner ring (19) is provided on a rotor (119) of the turbomachine.

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 discloses a crown block safety monitoring system based on YOLO V5 and Wincc, belongs to the field of monitoring systems, and aims to solve the problems that a crown block monitoring system mainly depends on manual judgment and is easily influenced by experience and judgment of an operator, and the operation risk is increased. The system comprises a data acquisition module, an image vision module, a hoisting state judgment module and an abnormity alarm module, the data acquisition module is used for acquiring variable point locations of the crown block PLC in real time; the method comprises the following steps: reading a variable point location in a PLC (Programmable Logic Controller) through KepServerEX software; the image vision module is used for recording a steel ladle trunnion position working image in real time from the front angle through n high-definition network cameras mounted on the two sides of a crown block working area and transmitting the steel ladle trunnion position working image to the hoisting state judgment module; the hoisting state judgment module is used for receiving the steel ladle trunnion position working image transmitted from the image vision module; and performing visual image identification on the steel ladle trunnion position working image based on a YOLO V5 algorithm, and identifying whether a lifting lug of the steel ladle and a lifting hook of the crown block are in safe positions or not.

A universal joint bearing includes a trunnion, a cup, rolling elements rotatably supporting the cup relative to the trunnion, and at least one seal for sealing a space between the trunnion and the cup. The cup has a substantially cylindrical surface, which is a part of a radially outer surface of the universal joint bearing. All of the rolling elements of the universal joint bearing are arranged in a certain number of rows of rolling elements. A sum of the maximum axial lengths of all the rows of rolling element divided by the sum of the maximum axial length of the substantially cylindrical surface and the maximum axial length of a radially outer surface of the at least one seal, which is another part of the radially outer surface of the universal joint bearing, is between 0.6 and 0.75.

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.

A customizable firearm system includes a chassis. A barrel assembly is disposed in the chassis. The barrel assembly including a trunnion and a barrel nut assembly. The barrel nut assembly includes an outer barrel nut sleeve and an inner barrel nut sleeve receiving a barrel. The barrel nut assembly is removably disposed in the trunnion. A bolt carrier assembly is disposed in the chassis. The bolt carrier assembly includes a backplate assembly and a pair of guide rods. Each of the guide rods have a first end disposed in the backplate assembly, and a second end disposed in the trunnion. A bolt carrier slidably disposed on the guide rod.

The invention discloses a gear transmission type electric cylinder trunnion supporting device, and relates to the technical field of electrotechnic.The gear transmission type electric cylinder trunnion supporting device comprises a device base, a groove is formed in the device base, and a swing adjusting structure is arranged in the groove of the device base; a rotary clamping structure is arranged on the upper surface of the side, away from the swing adjusting structure, of the device base, and a maintaining and cleaning structure is arranged on the side, close to the swing adjusting structure, of the device base. According to the electric cylinder trunnion supporting device, through cooperation of the first servo motor and the second servo motor, precise positioning and clamping are achieved, and the machining precision and efficiency are improved; a third servo motor is used for driving swing adjustment, the swing amplitude and angle are accurately controlled, stability and reliability are improved, an electric telescopic rod is used for starting and driving a maintenance and cleaning structure, cleaning and maintenance of the interior of the device are achieved, the service life of the device is prolonged, stable operation under various working conditions is ensured, and powerful guarantee is provided for production.

The invention relates to the field of dock gate mounting equipment, and particularly discloses a dumping type dock gate mounting structure and a mounting method.The mounting structure is characterized in that wall sealing structures are arranged at black ridges of a dock gate, winches, first pulley blocks and winches are arranged on shores on the left side and the right side, and the dumping type dock gate is pulled to be subjected to posture adjustment on the sea surface; a trunnion at the bottom of the dumping type dock gate is connected into the hinged support bearing seat, so that the sealing performance of the dock gate is checked after the dock gate is installed. The horizontal precast block and the vertical precast block are installed and adjusted correspondingly, and the precision of the embedded part is improved; meanwhile, the dumping type dock gate is transported from the sea surface, the posture of the dumping type dock gate is adjusted through a winch, a first pulley block and a winch, the dock gate is smoothly installed on a hinged support bearing seat, and overall installation is completed; the device is not limited by the size of the toppling dock gate, the installation precision is high, and the construction efficiency is guaranteed.

An actuating mechanism for a fluid displacement and pressuring device where the actuating mechanism comprises a pivotable component which has two pivot points - an upper pivot point provided by trunnions integral with a unitary link lever, and a lower pivot point provided by stub pins which are integral with either the housing of the device or a carrier component thereof. Preferably, the number of parts is reduced, assembly is easier, and the overall reliability of the device is increased.

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 present invention discloses a drum gear coupling, which includes a roller end sleeve assembly, an inner gear ring, a slewing support frame assembly, and an outer gear sleeve II; the roller end sleeve assembly includes an outer gear sleeve I, and the left short inner teeth and the right long inner teeth of the inner teeth are respectively meshed with the outer teeth on the outer gear sleeve I and the outer gear sleeve II, and the slewing support frame assembly is installed at the connecting end of the inner gear ring and the outer gear sleeve II. The drum gear coupling of the present invention realizes telescopic movement through a gear pair, which greatly improves its bearing capacity. The present invention also discloses a quick roller changing device, which includes a base, a support, a toggle assembly, and a moving assembly; the toggle assembly includes a toggle plate, a handle, a small shaft I, and a small shaft II, and the moving assembly includes a positioning plate; the handle, the support, and the toggle plate are connected through the small shaft I and the small shaft II; the toggle plate is connected to the front and rear ear shafts in the slewing support frame, and the raised guide rail on the upper part of the positioning plate cooperates with the axial groove of the slewing support frame. The quick roller changing device of the present invention can realize quick roller changing.

The present disclosure relates to a landing gear retraction link mechanism. A landing gear comprises: an outer barrel rotatably coupled to a frame of an aircraft around a trunnion rotation axis; a shock strut assembly movably coupled to the outer barrel so as to reciprocate along a longitudinal axis of the outer barrel; and a retraction mechanism, the retraction mechanism comprising: a first retraction link member pivotally coupled to the outer barrel; a second retraction link member coupling the first retraction link member to the shock strut assembly; a crank member pivotally coupled to the outer barrel; a follower member coupling the crank member to a walking beam (also called a retraction actuator beam) of a landing gear retraction mechanism; and a follower member coupling the crank member to the first retraction link member.

A magnetic bearing hub (21) for a vacuum pump comprises a base element (24) to be connected to the housing (10) of the vacuum pump, and a trunnion (20) extending from the base element (24), where the trunnion (20) is configured to receive a static magnetic element of the magnetic bearing (18), where the trunnion (20) has a predetermined breaking point (28).

The utility model provides a cradle structure for a machine gun weapon station. The cradle adopts a double-trunnion-hole groove-shaped structure, a trunnion hole is formed in the side wall of one end, and a guide rail is fixedly connected to the other end in a groove. The sliding base is installed on the guide rail and can slide along the guide rail, weapon installation structures are arranged at the first end and the second end of the sliding base respectively, the first end is closer to the trunnion hole of the cradle than the second end, and the protruding block in the middle of the guide rail is located between the first end and the second end. One end of the buffer rod is connected to the bump of the guide rail, and the other end is connected to the second end of the sliding seat. The buffer spring can buffer forward impact and recoil force generated when a weapon is shot, and the buffer rod is sleeved with the portion, between the protruding block and the second end, of the buffer spring. The buffering device is compact in structure, the buffering device can be provided for a small-caliber weapon without an external buffering device, so that the weapon rushes forwards and sits backwards in the shooting process, meanwhile, the spring buffers the impact load, and the stress of the trunnion and the bracket can be reduced to protect the trunnion and the bracket.