536 results about "Slewing bearing" patented technology

The present application relates to quenching equipment technical field, specifically is related to a slewing bearing no soft band integral quenching machine tool, including base, the upper surface of base is provided with collecting groove, X axis support is equipped in collecting groove, the adjustable box that can along its installation direction horizontal sliding is equipped on X axis support, the top end of adjustable box is embedded with rotatable support cylinder, a plurality of clamping jaws are provided in the side wall of support cylinder, the clamping jaw is driven and the spacing is adjusted by the drive assembly arranged in support cylinder;The slewing bearing is clamped or released in the process of approaching or moving away each other, the rotating motor can drive the rotation of support cylinder, and then the slewing bearing clamped in the inside of clamping jaw is adjusted, when adjustable box is at different positions on X axis support, the inside or outside of different specifications of slewing bearing can be quenched.

The invention discloses a centering rotary feeding device, belongs to the technical application field of numerical control inverted lathes, and is used for solving the feeding problem of a large inverted lathe. The device comprises a rotary feeding device and a workpiece centering device, the rotary feeding device is based on a rotary base, longitudinal movement of a sliding seat is achieved through a linear rail and a driving system, a feeding table is driven to rotate by 360 degrees in cooperation with a rotary bearing with a gear ring, and the feeding table is provided with a self-adaptive material table; the workpiece centering device is based on the centering base, the left centering arm and the right centering arm are driven by the bidirectional driving system to move synchronously, and quenching pads on the inner sides of the centering arms are arranged in a V shape to achieve automatic centering of workpieces. The device is made of cast iron materials, so that the rigidity is improved, the maximum bearing capacity is 3200 Kg, the feeding stroke is not smaller than 2500 mm, self-adaptive clamping and precise centering of workpieces can be achieved, the machining auxiliary time is saved, support is provided for development of large inverted lathes, and the device can also be used for other equipment needing feeding and discharging of heavy workpieces.

The corrugated pipe fatigue testing machine comprises a base, a first rotating assembly and a deflection movement assembly, the first rotating assembly comprises a first motor, a first rotating shaft and a first tool, and the first tool is arranged at one end of the first rotating shaft and used for installing a corrugated pipe; the other end of the first rotating shaft is connected with the output end of the first motor; the deflection movement assembly comprises a deflection base, a slewing bearing and a deflection motor, the slewing bearing is arranged on the base, the deflection base is arranged on the slewing bearing and connected with the output end of the deflection motor, a second tool is arranged on the deflection base, and the second tool is rotationally connected with the deflection base and used for being matched with the first tool to fixedly install the corrugated pipe; under driving of the first motor, the first rotating shaft drives the corrugated pipe to axially rotate, and under driving of the deflection motor, the deflection base drives the corrugated pipe to deflect along the axis of the slewing bearing.

The invention discloses a slewing bearing with three rows of rollers, a detection device, a detection method and an assembly method.The slewing bearing comprises an outer upper ring, an outer lower ring and an inner ring, and multiple sets of axial long holes are formed in the inner ring; limiting components and connecting long pins are installed in the axial long holes respectively, and the limiting components and the connecting long pins in the multiple sets of axial long holes are arranged at intervals. Two groups of parallel radial holes are formed in the inner side of the inner ring, one ends of the two groups of radial holes are communicated with the axial long hole, and the other ends of the two groups of radial holes are respectively communicated with the upper retainer or the lower retainer; the limiting component comprises a positioning long bolt, and symmetrical conical sleeves are mounted on the positioning long bolt; the two groups of radial holes are arranged in parallel up and down and are respectively provided with an upper propping column and a lower propping column; the conical sleeve abuts against the upper abutting column and the lower abutting column. According to the slewing bearing with the three rows of rollers, the conical sleeves which are arranged in the circumferential direction abut against the corresponding upper abutting columns and the corresponding lower abutting columns respectively, and abut against the upper retainer or the lower retainer, so that the slewing bearing has better radial stability.

The utility model discloses a numerical control rolling ring for rolling a slewing bearing, and belongs to the technical field of slewing bearing machining equipment. A numerical control rolling ring for slewing bearing rolling comprises a base, a mounting frame is arranged at one end of the base, a positioning plate is mounted in the mounting frame, a driving motor is arranged on one side of the positioning plate, the output end of the driving motor is fixedly connected with an adjusting assembly, and a compression roller assembly and a supporting air cylinder are mounted on the adjusting assembly. According to the numerical control rolling ring for slewing bearing rolling, the positions of the driving motor and the adjusting assembly are fixed through the positioning plate, the driving motor is used for driving the sliding block to move linearly at the same time, the requirement for various rolling diameters can be met, the pressing roller assembly is installed on the sliding block, and the rolling motor drives the rotating piece to drive the rolling roller to rotate; and meanwhile, the angle of the rolling roller can be changed on the rotating piece, the rolling roller can incline under the control of the supporting air cylinder, and the requirement for rolling multiple curved surfaces of the slewing bearing is met.

The utility model belongs to the technical field of fixing of the inner wall of the end of a petrochemical pipeline, and discloses a rotary internal bracing type fixing device for the petrochemical pipeline, which is characterized in that a movable strip-shaped hole is formed in the middle of the bottom of a telescopic groove; the movable rack is mounted in the movable strip-shaped hole; the convex edge is fixedly arranged on the peripheral edge of the outer side of the upper end face of the supporting cylinder, and the fixed disc is fixedly arranged in the middle of the bottom of the supporting cylinder; the bearing is fixedly mounted in the center hole; the slewing bearing is fixedly installed on the upper end face of the tight supporting cylinder. The four vertical transmission mechanisms are symmetrically arranged in a cross shape; the rotating disc is fixedly arranged on the inner ring of the slewing bearing; the upper end of the rotating shaft penetrates through the center of the fixed disc, the center of the rotating disc and the center of the end cover and extends to the upper part of the rotating disc. The device has the advantages that the inner wall of the end face can be automatically fixed in the machining process of the petrochemical pipeline, the surface space of the end face of the pipeline is not occupied, and the fixing efficiency and convenience of the petrochemical pipeline are improved.

This invention discloses a three-point tractor with full suspension and all-wheel braking system, aiming to provide a system that improves the overall driving comfort of the three-point tractor to meet higher customer demands. It includes: a steering bracket assembly mounted on a slewing bearing of the chassis; a front wheel mounting bracket rotatably mounted on the steering bracket assembly via a pin; a front wheel damping system including a front wheel shock absorber connecting the front wheel mounting bracket and the steering bracket assembly; and a rear wheel damping system including a rubber spring and a damper mounted on the chassis. The chassis is supported on the drive axle housing by the rubber spring, and the drive axle housing has a damper connection part connected to the damper via drive axle fixing bolts.

A tower crane for performing a lifting a load includes an extendable tower assembly having a central axis and including a plurality of separate tower sections, a climbing assembly including a climbing frame positioned on the tower assembly and a latching assembly to transport the climbing assembly vertically along the tower assembly, and a boom assembly atop the tower assembly and including a crane floor, a boom supported on the crane floor, a lifting member coupled to the boom, and a slew bearing coupled to the crane floor and configured to permit the crane floor to rotate about a rotational axis, wherein the slew bearing includes a first bearing position and a second bearing position spaced from the first bearing position relative to the central axis of the tower assembly.

The application discloses a rotary bearing loading test equipment, which comprises two annular loading frames, a first loading device arranged between the two annular loading frames, a second loading device, a third loading device, a fourth loading device, a driving system and a temperature simulation device mounted on each annular loading frame, two bearings respectively installed in the annular loading frames, the driving system for driving the inner ring of the bearing to rotate relative to the outer ring, and the temperature simulation device for heating the bearing, and further comprises a control system connected with each device, which is used for controlling the operation of each device and measuring the data parameters of the bearing. The same working conditions or different working conditions of two sets of bearings of the same specification can be simultaneously studied, evaluation and analysis can be carried out during the test process, early identification and early diagnosis of the bearing to be tested are realized, and the test period and cost are saved.

The utility model discloses a surface treatment device for a slotted bolt. The surface treatment device comprises a galvanizing bath, the lifting mechanism is arranged at the bottom of the galvanizing bath; the rotating mechanism is arranged at the upper end of the lifting mechanism and comprises a supporting frame connected with the lifting mechanism, a rotating bearing frame is installed on the supporting frame through a toothless type slewing bearing, a galvanizing basket is placed on the bearing frame, a circle of annular bevel gear is arranged on the bearing frame around the galvanizing basket, and a rotating driving bevel gear is arranged on the inner wall of the galvanizing tank. The driving bevel gear is located above the annular bevel gear and corresponds to the annular bevel gear, and the driving bevel gear is driven by a motor to rotate; the limiting mechanism is arranged on the bearing frame and is connected with the galvanized basket; according to the utility model, a workpiece can be directly centrifuged in the galvanizing bath after being galvanized, so that a plating solution is prevented from being scattered everywhere when the workpiece is transferred.

The utility model relates to the technical field of mechanical part machining, in particular to a fixing device convenient to adjust and used for slewing bearing machining, and solves the problems that in the prior art, the height of a slewing bearing cannot be adjusted when the slewing bearing is fixed, and flexible operation of workers in machining operation can be reduced. A fixing device convenient to adjust and used for slewing bearing machining comprises a containing table, a fixing table is fixedly installed at the top of the containing table, and an adjusting assembly is arranged at the bottom of the fixing table; and the adjusting assembly comprises an adjusting groove, limiting stoppers, a supporting block, an adjusting sliding groove, a limiting sliding groove, an adjusting block, an adjusting rod and a pushing rod, the adjusting groove is formed in the containing table, the limiting stoppers are distributed in an annular array mode and fixedly connected to the bottom of the fixing table, and the supporting block is fixedly installed below the fixing table. According to the slewing bearing, a worker can conveniently adjust the height of the slewing bearing, the convenience of machining operation of the worker is effectively improved, and the machining efficiency of the worker is improved.

The invention discloses a cast molten iron safe transfer casting ladle with an efficient heat preservation and leakage-proof structure, and relates to the technical field of molten metal transfer equipment. Comprising a storage barrel, two pieces of U-shaped steel are symmetrically arranged on the side face of the storage barrel, a hanging assembly is arranged on the U-shaped steel, the hanging assembly comprises two mounting plates and two connecting plates, the two connecting plates are fixed to the U-shaped steel at the corresponding positions, a first connecting shaft and a second connecting shaft are fixed to the two connecting plates respectively, slewing bearings are fixed to the two mounting plates, and the two mounting plates are provided with rotating shafts; the first connecting shaft and the second connecting shaft are arranged in the slewing bearings at the corresponding positions respectively, a transverse plate is fixed to the upper portions of the two mounting plates, a lifting assembly is arranged on the two mounting plates, a heat preservation assembly is arranged below the lifting assembly, and a rotating assembly is arranged on the side face of one mounting plate. Heat loss is effectively reduced, the temperature and fluidity of molten iron are guaranteed, and the quality of the molten iron is improved; meanwhile, operation is flexible, and the requirements of different production scenes can be met.

The utility model provides a disconnected type vehicle frame and a mine truck, the disconnected type vehicle frame comprises a front vehicle frame and a rear vehicle frame, a slewing bearing is arranged between the front vehicle frame and the rear vehicle frame, the outer ring of the slewing bearing is fixedly connected to the rear end part of the front vehicle frame, and the inner ring of the slewing bearing is fixedly connected to the front end part of the rear vehicle frame; and the inner ring and the outer ring of the slewing bearing are rotationally connected. Compared with an existing integral frame vehicle, the front frame and the rear frame adopting the slewing bearing can rotate in a small range in the advancing direction, so that an axle can be in better contact with the ground, the driving force of the vehicle is increased, and the cross-country performance of the vehicle is improved; compared with an existing articulated truck that a power assembly and a transfer case are both installed on a front truck, the power assembly of the disconnected truck frame adopting the slewing bearing is installed on the front truck frame, the transfer case is installed on the rear truck frame, the size of a front overhang and a wheel base of the whole truck is small, the length of the whole truck is reduced, applicability is improved, and wide application and popularization prospects are achieved.

The utility model discloses a high-stability slewing bearing, and belongs to the technical field of engineering mechanical devices. The slewing bearing comprises a slewing bearing body and a spacer ring, the slewing bearing body is provided with a slewing bearing inner ring, an installation groove is formed in the slewing bearing inner ring, the spacer ring is installed in the middle of the installation groove, a circle of oil distribution holes are formed in the spacer ring, an oil injection groove and a circle of oil outlet groove are formed in the slewing bearing inner ring, and the oil injection groove and the oil outlet groove are located on the two sides of the spacer ring. Lubricating oil is dispersed through the oil guide grooves and the distance rings, the number of the oil nozzles is reduced to one, the structural design of the slewing bearing is greatly simplified, manufacturing complexity is lowered, later installation, maintenance and replacement are facilitated, the problem that oil injection is uneven or omission possibly occurs in a traditional multi-oil-nozzle design is solved, and the service life of the slewing bearing is prolonged. And therefore, the lubricating efficiency is improved, all parts of the bearing are fully lubricated, and the service life is prolonged.

The utility model discloses a driving module of a transport vehicle, the driving module comprises a pivotal bearing, a power assembly, a support and an angle sensor, the support is connected with the pivotal bearing and the power assembly, a mounting surface for supporting the pivotal bearing is formed on the support, and the angle sensor and the pivotal bearing are coaxially arranged; the pivotal bearing comprises a bearing inner ring and a bearing outer ring which can rotate relatively; one of the bearing inner ring and the bearing outer ring is fixedly connected with the support, the other one of the bearing inner ring and the bearing outer ring is used for being connected with a frame of the transport vehicle, and when the bearing inner ring and the bearing outer ring rotate relatively, the angle sensor measures the relative rotation angle of the bearing inner ring and the bearing outer ring. The utility model further discloses the transport vehicle comprising the driving module. The angle sensor is arranged at the geometric center of the pivotal bearing, the structures of the angle sensor and the driving module are simplified, all parts of the driving module are arranged more compactly, and the integration degree is higher.

The utility model discloses a slewing bearing structure of an excavator, which comprises a slewing bearing inner ring and a slewing bearing outer ring, the slewing bearing inner ring is connected with the slewing bearing outer ring, and an inner tooth structure is arranged on the inner side wall of the slewing bearing inner ring. The end face of the slewing bearing inner ring is provided with first installation holes which are evenly distributed on the slewing bearing inner ring, the end face of the slewing bearing outer ring is provided with a second installation hole, a third installation hole, a fourth installation hole and a fifth installation hole, and the excavator protection device achieves the functions of protecting an excavator and facilitating entering and exiting and escaping.

The invention discloses a fabricated truss structure horizontal tower crane adaptive to wind power installation, and belongs to the technical field of building construction machinery. The tower crane is arranged on one side of a wind power center and comprises a tower frame formed by splicing a plurality of assembly type modules, four trusses are arranged in a rectangular mode and connected through transverse connecting rods, and the bottom of the tower frame is designed to be in a pressing rod stress mode; the horizontal truss is fixedly mounted at the top of the tower; the horizontal walking trolley is arranged on the horizontal truss and can move horizontally; the counterweight is arranged at one end of the horizontal truss; the steel strand hydraulic lifters are arranged on the periphery of the tower in a surrounding mode and used for lifting and detaching the tower; an assembly type structure is adopted, the modularization degree is high, transportation is convenient, and cost can be remarkably reduced; through a pressing rod stress mode and a tension-free design, the overturning risk is eliminated; the invention provides two structures with rotary support and without rotary support, respectively meets the requirements of flexible operation and accurate centering, and is adaptive to hoisting of wind turbine types with the height of more than 200 meters and the height of 10 MW to 25 MW and heavy components with the height of 50 t to 400 t, thereby being suitable for hoisting of wind turbine types with the height of more than 200 meters and heavy components with the height of 50 t to 400 t.

The invention relates to the technical field of quenching equipment, in particular to automatic integral quenching equipment for a pivotal bearing, which comprises a chassis, and further comprises a control cabinet and an intermediate frequency cabinet both fixedly mounted at the top of the chassis; the quenching box is mounted at the top of the chassis; the circulating water cooling system is mounted at the top of the chassis and is used for carrying out cooling circulation on the equipment; the quenching liquid circulating system is used for recovering the quenching liquid and performing cooling circulation reutilization; the rotating table is mounted at the top of the chassis through a rail, a quenching assembly is mounted at the top of the rotating table, and the quenching assembly is used for being matched with a quenching liquid circulating system to guide quenching liquid to pass through a workpiece on the rotating table in a flowing mode for quenching; according to the device, the quenching liquid is changed from spraying to immersing the workpiece firstly and then flowing and discharging, so that the whole surface of the workpiece is instantly and completely coated by a uniform and static liquid layer, and non-uniform cooling and local steam film retention caused by non-uniform impact angle and flow of a liquid column during spraying are eliminated.

The invention discloses a ship-borne cantilever crane integrating slewing bearing and braking and a slewing braking method. The ship-borne cantilever crane comprises a stand column, a cantilever, a hoist crane arranged on the cantilever and a slewing driving mechanism used for driving the cantilever to rotate around the stand column. A rotation and brake integrated mechanism is arranged between the top end of the stand column and the root of the cantilever; the rotary braking integrated mechanism comprises an integrated rotary braking device, and the integrated rotary braking device has two working states: a rotary supporting state: the integrated rotary braking device is in an unlocking state, and the cantilever is allowed to rotate around the stand column under the driving of the rotary driving mechanism; in the rotation braking state, the integrated rotation braking device is in the locking state, braking torque is applied to the cantilever, and the cantilever is braked relative to the stand column. According to the invention, a slewing bearing function and a braking function are integrated on a mechanical structure, so that the problems of slow slewing braking response, inaccurate parking and large inertial impact of the shipborne cantilever crane are solved.

The utility model discloses a low-abrasion self-lubricating wind power yaw slewing bearing structure which comprises a variable-pitch bearing, a plurality of paddles are arranged on the outer end face of the variable-pitch bearing, a main shaft bearing is fixed to the back of the variable-pitch bearing, and the back of the main shaft bearing is connected with a slewing bearing body structure through a transverse bolt. The slewing bearing body structure comprises an outer ring, an inner ring is fixed to the inner side of the outer ring, a lubricating structure is arranged at the top of the outer ring and comprises a lubricating box, an oil filling pipe is fixed to the right end of the outer side of the lubricating box, the left side of the oil filling pipe penetrates to the inner side of the lubricating box, and an oil outlet pipe is fixed to the bottom of the lubricating box. And one end of the oil outlet pipe penetrates to the inner side of the lubricating box, and the other end of the oil outlet pipe penetrates to the interior of the outer ring, by arranging the lubricating structure, circulation of the lubricating structure in the outer lubricating channel and the inner lubricating channel is facilitated, automatic lubricating of the slewing bearing main body structure is achieved, and then the effect of reducing abrasion is achieved.

The utility model relates to a steering wheel, in particular to a steering wheel with high stability, which comprises two fixing plates, a transmission system and a steering system, the transmission system and the steering system are arranged on the two fixing plates, the transmission system comprises a walking driving motor and a wheel arranged on one side of the walking driving motor, and an input shaft is arranged on the walking driving motor. An output helical-tooth sun gear, an output helical-tooth planet gear and an output helical-tooth gear ring are sequentially arranged on the outer side of the input shaft, the output helical-tooth sun gear and the output helical-tooth planet gear are each provided with a helical-tooth structure, and the steering system comprises a steering connecting flange and a steering driving motor fixed to the lower end face of the steering connecting flange; the output end of the steering driving motor is connected with a straight tooth gear, and a slewing bearing outer ring and a slewing bearing inner ring are sequentially arranged at the end, away from the steering driving motor, of the straight tooth gear. According to the steering wheel, the two sides of the wheel are supported through the two fixing plates, so that the bearing capacity is higher, and the overall stability is improved.

This invention discloses a steering axle and its vehicle, including a steering bridge frame; steering wheels symmetrically arranged on both sides of the steering bridge frame and capable of synchronous rotation; and an electric cylinder mounted on the steering bridge frame for driving the steering wheel on one side to rotate and simultaneously rotating the steering wheel on the other side. The steering wheels on both sides are mounted on wheel frames, which are rotatably mounted at both ends of the steering bridge frame via slewing bearings. A rotating main shaft penetrating the slewing bearing and the steering bridge frame is mounted on the wheel frame. This invention uses the electric cylinder as a unique power source for steering, eliminating the need for other power systems or sharing power, effectively avoiding unnecessary energy waste. This invention discloses the use of a single-acting linkage-type electric cylinder as the power input, providing stable power input and high control precision. Furthermore, the use of mechanical transmission mechanisms such as gears and lead screws ensures high transmission precision, allowing operators to accurately control the start and stop positions of the steering wheels, resulting in high steering accuracy.

The application discloses a kind of wind power blade ultrasonic nondestructive testing equipment, it includes chassis, slewing bearing, lifting device, telescopic device, rotating device, ball screw module, ultrasonic detection component and sensor component, slewing bearing is set on chassis, lifting device is set on slewing bearing, telescopic device is set on lifting device, and telescopic device one end is fixed with rotating device, ball screw module is set on rotating device, ultrasonic detection component is fixed on ball screw module, sensor component is set on ultrasonic detection component.The application changes into automation work that artificial hand-held ultrasonic flaw detector is carried out nondestructive testing operation to wind power blade, so that the work efficiency of wind power blade detection is significantly improved, and artificial labor is reduced.Ultrasonic detection component can achieve the goal of XYZ three directions movement and rotation around vertical direction and Y axis screw module length direction in space, can fit wind power blade surface, realize accurate detection.

An outer ring of a slewing bearing of the photocuring three-dimensional printing device is fixed to a workbench, a supporting cylinder is fixed to an inner ring of the slewing bearing, a material groove is formed in the top end face of the supporting cylinder, one side of the material groove is hinged to the supporting cylinder through a hinge shaft, and the material groove can rotate around the hinge shaft; when the printing platform carries the model to move upwards, the end, away from the hinge shaft, of the trough can be driven to move upwards, and the trough inclines. A driving wheel is arranged on a ball screw of the transmission device, and a driven wheel connected with the driving wheel is arranged on the inner ring, so that the ball screw can drive the inner ring to rotate and drive the supporting barrel and the trough to rotate synchronously. The invention further discloses a photocuring three-dimensional printing method. The servo motor for driving the ball screw to rotate is also used as the motor for rotating the trough, so that the control system is simplified. And when the model moves upwards, an included angle is formed between the curing layer and the horizontal plane, so that a gap is formed between the curing layer and the release film until the curing layer is completely separated from the release film.

The utility model discloses a mechanical arm which comprises a forearm power-assisted rotating device, a wrist posture adjusting device and a finger posture adjusting device. The small arm power-assisted rotating device comprises a small arm retainer, a worm, a pivotal bearing and a rocker mechanism, and the rocker mechanism drives the worm to rotate in a reciprocating mode, so that an outer ring of the pivotal bearing is driven to rotate in a reciprocating mode, and then the small arm retainer is driven to rotate periodically; the wrist posture adjusting device comprises a controllable servo motor, a driving bevel gear I and a bevel gear II, and the controllable servo motor drives the bevel gear I and the bevel gear II to drive the wrist posture adjusting device to achieve reciprocating bending of the wrist; the finger posture adjusting device comprises a belt wheel assembly and a mechanical finger bevel gear II. The belt wheel assembly is driven by the mechanical finger bevel gear II to drive the mechanical finger to complete grabbing and opening and closing actions. According to the multi-joint rehabilitation training device, multi-joint collaborative movement of the forearm, the wrist and the fingers of a patient can be achieved, and comprehensiveness and effectiveness of rehabilitation training of the patient can be improved.

The invention discloses intelligent grinding equipment and method based on an excavator slewing bearing, and relates to the technical field of slewing bearings. Comprising a grinding machine table, a driving control box is fixedly installed on the grinding machine table, the driving control box is provided with an intelligent assembly used for controlling a grinding head, the intelligent assembly comprises a transverse guide rail, a vertical driving piece and a telescopic piece, and a driving motor is fixedly installed in the grinding machine table; the output end of the driving motor is connected with a rotating machine table, a sliding block is movably installed on the rotating machine table, a rotating wheel disc is installed in the rotating machine table, arc-shaped rail grooves are formed in the rotating wheel disc at equal angles, and connecting rods are installed in the rail grooves in a limiting and sliding mode. And through the arranged movable adjusting mechanism, the scraping plate can adapt to the grinding motion paths of different materials, meanwhile, through the clamping stabilizing mechanism, the overall grinding stability can be effectively improved, and shaking is reduced.

The invention relates to the technical field of engineering vehicles, in particular to a vehicle steering angle detection device and a vehicle. The device comprises an encoder support, an angle encoder, a deflector rod and a limiting piece, the encoder support is used for being installed on a suspension bracket of a vehicle. The angle encoder is installed in the encoder support and used for detecting the rotation angle of the angle encoder. The first end of the driving lever is rotationally mounted at the top of the angle encoder; the limiting piece is rotationally installed on the vehicle frame and located at the end, away from a vehicle slewing bearing, of the angle encoder, and the second end of the shifting rod penetrates through the limiting piece and the slewing bearing to be installed on the vehicle frame and located between the vehicle frame and the suspension frame. The angle detection device effectively solves the technical problems of complex manufacturing and mounting process, high cost and difficult maintenance caused by high mounting precision requirements of the angle detection device on the driving gear and the driven gear in the prior art.

The utility model discloses a turning-around device which comprises a lower rotating disc, an upper rotating disc, a slewing bearing, a driving device, a supporting frame, a plurality of weighing seats, a plurality of anchoring assemblies and an electrical control system, the lower rotating disc is provided with at least two groups of anchoring hole groups, each group of anchoring hole group is provided with at least three anchoring holes, and the upper rotating disc is provided with at least two groups of anchoring holes. One end of the first anchor rod assembly is fixedly installed in the anchoring hole, and the other end of the first anchor rod assembly can be fixedly connected to the box girder so that the lower rotating disc can be fixedly connected to the box girder. The slewing bearing comprises an outer ring and an inner ring which rotate relatively, the outer ring is detachably connected to the lower rotating disc, and the inner ring is located in the outer ring and detachably connected with the upper rotating disc; the driving device is arranged on the upper rotating disc, and the output end of the driving device is connected to the outer ring in a driving mode so that the outer ring and the inner ring can rotate relatively. Therefore, the U-turn construction operation of the transporting and erecting equipment can be quickly realized, the U-turn efficiency is high, and the construction cost is low.

The utility model discloses a folding interesting amusement turntable, which is applied to the technical field of amusement facilities and comprises an underframe component, the top of the underframe component is bolted with an underframe outer cover, the bottom of the underframe outer cover is provided with a slewing bearing, the inside of the slewing bearing is rotatably connected with a central column component, and the central column component is provided with a rotating shaft. The surface of the center column assembly is fixedly sleeved with a main arm connecting shaft rotationally connected with the bottom frame outer cover, and the two sides of the surface of the main arm connecting shaft are in bolted connection with a first main arm and a second main arm correspondingly. The three adjacent supporting arms and the glass fiber reinforced plastic cabin on the top are drawn close to each other, and the arm plug pins in the middle of the front three supporting arms are pulled out, so that the supporting arms and the glass fiber reinforced plastic cabin are turned upwards. And then the bolt is used for fixing. And then the other two support arms are drawn close to the middle and are fixed by using an iron pipe. And the glass fiber reinforced plastic cabin can be folded and stored, so that the occupied space of the amusement turntable is reduced, and the amusement turntable is convenient to transport and move.

The utility model belongs to the technical field of hoisting machinery, and relates to a multi-pin shaft axial limiting quick dismounting and mounting structure which comprises a limiting assembly used for fixing pin shafts, the limiting assembly comprises a circular-ring-shaped axial baffle and a fastening bolt, the plate face of the axial baffle is attached to the peripheral face of the pin shaft connecting position of a slewing bearing and a seat ring, and the fastening bolt is connected with the limiting assembly. Positioning holes and mounting holes are evenly formed in the circumferential side wall of the axial baffle, the positioning holes correspond to pin shaft holes of the slewing bearing and the seat ring, and a pin pulling bolt connected with a quick pin puller is arranged on the end face, close to the outer circumferential face of the pin shaft connecting position, of the pin shaft. The fastening bolt fixes the axial baffle to the peripheral face of the joint of the pin shaft through the mounting hole, and the axial baffle rotates clockwise and anticlockwise to achieve axial limiting unlocking or axial limiting locking of the pin shaft. And the requirement of a kiloton mobile crane for quick disassembly and assembly of axial limiting of multiple pin shafts connected with the slewing bearing and the seat ring is met.