558 results about "Spherical bearing" patented technology

The invention relates to the technical field of micro-nano precision motion, and particularly discloses a micro-nano wafer processing and detection precision motion platform, which comprises a base, a rotating module and a plurality of lifting leveling modules, the lifting leveling module comprises a horizontal driver, a first wedge block, a second wedge block and a spherical bearing; the first wedge block is slidably connected with the base in the horizontal direction. The horizontal driver is arranged on the base and is connected with the first wedge block; the second wedge block is slidably connected with the base in the vertical direction and is in wedge fit with the first wedge block. The spherical bearing is arranged on the second wedge block; the rotating module comprises a carrier plate, a wafer washing disc and a linear driver; the carrier plate is arranged on the plurality of lifting leveling module spherical bearings; the wafer washing disc is rotatably arranged on the carrier plate; the linear driver is arranged on the carrier plate, connected with the wafer washing disc and used for driving the wafer washing disc to rotate through linear motion. The motion platform provided by the scheme can realize high-precision leveling and deviation correction operation in wafer processing, detection and repair.

An orthopaedic joint prosthesis assembly includes a head part of an orthopaedic joint prosthesis component and an alignment guide. The head part has a spherical bearing surface for articulation with a corresponding joint surface, and an assembly surface having a first bore formed in it for receiving a spigot on another part of the orthopaedic joint prosthesis. The bore has a first axis that extends perpendicular to the assembly surface. The alignment guide has an axial portion defining a second axis and an arm extending from the axial portion. The arm includes a distal portion which is configured to engage the assembly surface, with the axial portion being arranged to engage the bearing surface of the head part when the head part is mounted within the guide such that an impaction force applied along the second axis is directed along the first axis.

A jigsaw including a housing, a handle extending transverse from the housing in a direction along a handle axis, a battery selectively coupled to the handle, a foot plate configured to contact a workpiece during a cutting operation, a drive assembly powered by the battery and including a motor, a transmission driven by the motor, an output spindle driven by the transmission and coupled to a saw blade. The jigsaw further includes a scotch yoke mechanism to convert a rotational motion of the transmission to a reciprocating motion of the output spindle and the saw blade generally along a vertical axis that is perpendicular to the handle axis, wherein the scotch yoke mechanism includes a bushing eccentrically mounted to a driven gear of the transmission. The bushing includes a spherical bearing surface received within a laterally extending slot of the output spindle for sliding movement therewith.

An aircraft pipework assembly is disclosed including an aircraft structure; pipework; a fixture arrangement between the pipework and the aircraft structure; a tie rod connecting the pipework to the aircraft structure; a first tie rod bearing which connects the tie rod to the pipework; and a second tie rod bearing which connects the tie rod to the aircraft structure. The fixture arrangement includes a spherical bearing, the spherical bearing comprising a ball mounted to the pipework, and a housing coupled to the aircraft structure. The ball includes a convex spherical bearing surface; and the housing comprises a concave spherical bearing surface which mates with the convex spherical bearing surface of the ball. The fixture arrangement is configured to enable the pipework to translate relative to the ball in an axial direction aligned with a longitudinal axis of the pipework.

The invention relates to the technical field of heat treatment of bearing rings applied to wind power type main shafts, in particular to a heat treatment shaping process for spherical bearing rings. The outer diameter of the spherical bearing ring close to the A end face is measured, and the diameter variation SA is obtained; measuring the outer diameter of the spherical bearing ring close to the end face B to obtain a diameter variation SB; if SA and SB are both larger than the standard deformation quantity threshold value, the position for installing the top type tool is determined, the top type tool starts to be installed, and the outer diameter deformation low point is changed into the outer diameter deformation high point through tool stress; and after shaping is finished, heating and heat preservation are conducted through a tempering furnace. According to the difference value between the diameter variation of the end faces of the two sides of the large / oversize spherical bearing ring, a reasonable top form formula is determined, the shaping position and the top form degree are strictly controlled, and it is guaranteed that the diameter variation after shaping is within the allowance range through the large inversion amount.

Disclosed is a variable-A-value free bending forming device capable of processing pipe fittings of different outer diameters. The device comprises a bending forming module, clamping and fixing modules, and a spherical bearing. The bending forming module is used for clamping a bent section of a pipe blank. Multiple clamping and fixing modules on a rear side of the bending forming module are evenly distributed along the circumference of the pipe blank, and are used for clamping and limiting an unbent section of the pipe blank during a bending forming process. Clamping mechanisms of the bending forming module and the clamping and fixing module have overall radial movement freedom and circumferential movement freedom for clamping jaws, and can meet the requirements for clamping pipe fittings of different outer diameters. Each clamping and fixing module adjusts the A-value during forming by adjusting the positions of an arc-shaped limiting block and a clamping support base. The present invention enables efficient single-die, multi-pipe processing in a free bending forming device for pipe fittings, reducing the time and cost required for die changes. The variable A value expands the application range of the device and further improves the forming quality of three-dimensional bent pipes.

The utility model relates to a friction type quasi seismic isolation support, a bridge and a building body, comprising a spherical support used for forming a first plane friction pair with a building body cross beam, and further comprising an additional plane support used for being fixed on a building bottom pier and used for being supported between the spherical support and the building bottom pier; a second plane friction pair is formed between the additional plane support and the spherical support, and the friction coefficient of the second plane friction pair is larger than that of the first plane friction pair; the structure further comprises a plurality of fragile shear keys, the upper ends of the fragile shear keys are connected to the spherical support, and the fragile shear keys abut against the two opposite sides of the additional plane support in the midspan direction of the building cross beam in a limited mode. According to the utility model, the upper structure of the building body can be prevented from being easily lifted when the building body suffers from a rare earthquake, the building body is prevented from losing the shock resistance after the rare earthquake, and the controllability of the friction coefficient is stronger.

The invention relates to a trunnion device adapting to the running posture of a floating body gate, the trunnion device is used for connecting a lock wall and the floating body gate, the trunnion device comprises a fixed support, a connecting mechanism and a movable support, the fixed support is fixedly connected with the lock wall, the movable support is fixedly connected with the floating body gate, and the connecting mechanism is fixedly connected with the fixed support. The fixed support is hinged to the movable support through a connecting mechanism. The connecting mechanism comprises a vertical shaft, a horizontal shaft, a knuckle bearing and a sliding bearing, a bearing seat is fixedly arranged at one end of the horizontal shaft, the knuckle bearing is arranged in the bearing seat of the horizontal shaft, the knuckle bearing is arranged on the vertical shaft in a sleeving mode, an outer ring of the knuckle bearing is in interference fit with the bearing seat, and the sliding bearing is arranged on the bearing seat. An inner ring of the knuckle bearing is in clearance fit with the vertical shaft, the fixed support is detachably and fixedly connected with the vertical shaft, a mounting hole is formed in the movable support, the sliding bearing is arranged at the end, away from the bearing seat, of the horizontal shaft in a sleeving mode, and the sliding bearing is detachably mounted between the horizontal shaft and the mounting hole. An outer ring of the sliding bearing is in interference fit with the mounting hole, and an inner ring of the sliding bearing is in transition fit with the horizontal shaft.

The utility model discloses a waist mechanism and a robot. The waist mechanism comprises a base; the cross shaft is rotationally connected with the base, and the cross shaft rotates around a first direction relative to the base; the output assembly comprises two driving modules, the two driving modules are symmetrically arranged on the base in the first direction, each driving module comprises a driving assembly and a connecting rod assembly, one end of each connecting rod assembly is connected with the output end of the corresponding driving assembly, and the other end of each connecting rod assembly is connected with the output end of the corresponding driving assembly. The other end of the connecting rod assembly is rotationally connected with the base through a first fisheye bearing, the driving module is rotationally connected with the cross shaft, and the driving module rotates around a second direction relative to the cross shaft; the first direction intersects with the second direction. According to the technical scheme provided by the invention, the waist action of the robot can be more diversified and flexible.

The utility model provides a work fixture for rod end knuckle bearing drilling, which belongs to the technical field of rod end knuckle bearing processing and comprises a horizontally arranged fixture body, a base protruding downwards is arranged in the middle of the bottom surface of the fixture body, and a boss protruding upwards is arranged in the middle of the upper surface of the fixture body. A positioning mandrel is vertically arranged in the middle of the upper surface of the boss, the lower end of the positioning mandrel is vertically inserted into the clamp body, the upper end of the positioning mandrel is located above the boss, a through hole penetrating through the clamp body is vertically formed in the middle of the positioning mandrel, and a bolt is vertically arranged in the through hole and penetrates through the positioning mandrel to be in threaded connection with the clamp body. According to the rod end knuckle bearing drilling fixture, the problem that the rod end knuckle bearing shakes in the drilling process due to the fact that the rod end knuckle bearing cannot be well fixed in the drilling process every time can be solved, so that the percent of pass of finished products machined finally is increased, and the working efficiency is improved.

The utility model belongs to the technical field of molten steel purification, and particularly relates to an RH alloy feeding device with a dynamic feeding sealing mechanism. The device comprises an air cylinder, a material receiving box, a connector, a guide channel, a conical sealing mechanism and a bottom flange, the air cylinder is vertically connected to the upper surface of the top of the material receiving box, and a piston of the air cylinder penetrates through the upper top surface of the material receiving box, extends into the material receiving box and is connected with the conical sealing mechanism through a connector. The guide channel is fixedly connected to the inner top surface of the receiving box; the conical sealing mechanism is arranged in the guide channel and can move up and down along the inner side wall of the guide channel; and the bottom flange is hermetically connected to a discharge hole in the bottom of the receiving box. The stroke of the air cylinder is controlled according to a set value of the pressure sensor, and dynamic and reliable sealing is achieved; the air cylinder is connected with the sealing body through the knuckle bearing, so that the sealing effect is optimal, the service life of the sealing ring is prolonged, the leakproofness of all links in the feeding process is guaranteed, and the influence of leakage points on the load of a vacuum system is reduced.

The utility model discloses a double-swing thrust floating knuckle bearing which comprises a shaft seat and a shaft core, a shaft seat concave spherical surface part is formed on the upper side of the shaft seat, a shaft seat convex spherical surface part is formed on the lower side of the shaft seat, and the ball center of the shaft seat concave spherical surface part is consistent with that of the shaft seat convex spherical surface part; the shaft core vertically penetrates through the shaft seat, a shaft core convex spherical surface part and a shaft core concave spherical surface part are formed on the shaft core, the shaft core convex spherical surface part and the shaft seat concave spherical surface part are consistent in spherical radius and spherical center and are slidably attached to the shaft seat concave spherical surface part, and the shaft core concave spherical surface part and the shaft seat convex spherical surface part are consistent in spherical radius and spherical center and are slidably attached to the shaft seat convex spherical surface part; and the shaft core is spherically hinged on the shaft seat. The utility model provides an integral structure type knuckle bearing capable of bearing loads in multiple directions.

The invention discloses a knuckle bearing and a knuckle bearing state monitoring method based on friction electric signals. The knuckle bearing comprises an inner ring and an outer ring which are connected, the inner ring is rotatably arranged in the outer ring, the inner ring is provided with a first spherical surface, the outer ring is provided with a second spherical surface, and the first spherical surface is attached to the second spherical surface; the bearing further comprises a first friction layer, a second friction layer and a wire, the first friction layer is arranged on the first spherical surface, the second friction layer is arranged on the second spherical surface, the first friction layer makes contact with the second friction layer, and friction electric signals are generated between the first friction layer and the second friction layer along with relative rotation of the inner ring and the outer ring. The wire is connected with the outer ring and used for outputting friction electric signals. Friction electric signals generated between the first friction layer and the second friction layer can be utilized to directly reflect the running state of the bearing, and running state monitoring and fault diagnosis of the knuckle bearing can be achieved.

A rotor assembly for a rotary wing aircraft includes a rotor hub, a rotor blade coupling coupled to the rotor hub, a hub extender coupled to the rotor hub, and a first bearing assembly. The first bearing assembly includes a clevis coupled to the hub extender and including two arms, each arm including a clevis opening, two cylindrical bearings, each cylindrical bearing extending through one of the clevis openings, a spherical bearing positioned between the two arms and coupled to the rotor blade coupling, and a first pin extending through the two cylindrical bearings and the spherical bearing.

The invention relates to the technical field of rock-soil anchoring engineering, in particular to a variable-diameter tension-compression composite anti-floating anchor rod which comprises a water stop ring, a spiral bar, a spherical bearing body, an assembly type support, an end cap, a threaded steel bar and an isolation sleeve, and the threaded steel bar is sequentially connected with the spherical bearing body, the assembly type support and the end cap from top to bottom; an isolation sleeve is sleeved outside the twisted steel from the spherical bearing body to the orifice end of the drilling hole; the spherical bearing body comprises a ball head, a ball plate and a ball nut, the ball head is spherical, the bottom of the ball head is connected with the upper surface of the ball plate, the bottom of the ball plate is connected with the ball nut, and the spherical bearing body is provided with a rib penetrating hole penetrating through the ball head, the ball plate and the ball nut. The spherical bearing body can slide coarse particles in a drill hole or muck falling from a hole opening in time through the arc line of the ball head, the muck accumulation phenomenon on a traditional plate type bearing body is eliminated, the situation that the compression bearing capacity of a grouting body at the position of the spherical bearing body is not affected is avoided, and then cooperative bearing of the pressure-bearing anchoring section and the tension anchoring section is guaranteed in a high-quality mode.

A height adjustment device includes a lower part, an upper part, and a height adjustment unit including a first spherical plain bearing, a second spherical plain bearing, a third spherical plain bearing, a first lifter, a second lifter, and a third lifter. The height adjustment device is configured to adjust a height of the upper part with respect to the lower part by driving the first lifter, the second lifter, and the third lifter.

A quick-connect steam wand assembly for steaming beverages and more particularly to a wand that can be easily attached or detached quickly to a beverage / espresso making machine. Wherein the steam wand assembly is formed at least two parts. Wherein the second part attaches to the first part via a spherical bearing or by pair of magnets that allows quick connection or disconnection for effectively cleaning the wand without taking the machine out of commission.

The rod end knuckle bearing comprises a rod end body, an inner hole is formed in the rod end body, an inner ring is installed in the inner hole in a matched mode, an annular limiting groove is formed in the outer spherical surface of the inner ring, and a limiting pin used for being matched with the annular limiting groove in a limiting mode so as to limit the swing freedom degree of the inner ring in the designated direction is fixed to the rod end body. The limiting pin is arranged on the rod end body, meanwhile, the annular limiting groove is formed in the outer spherical surface of the inner ring, and therefore the swing freedom degree of the inner ring in the left-right direction can be limited through limiting cooperation of the inner side end of the limiting pin and the annular limiting groove; and the walking stability of the humanoid robot can be effectively improved.

The invention discloses a stamping forming machine for gold product machining, which comprises a stamping assembly, a stamping assembly, a stamping assembly and a stamping assembly, the stamping assembly comprises a bracket, a bracket table arranged on the bracket, an upper stamping part arranged on the bracket table and a lower stamping part which is arranged on the bracket table and corresponds to the upper stamping part; the stamping adjusting assembly comprises a stamping bottom plate arranged on the lower stamping part, an inner cavity formed in the stamping bottom plate, a stamping die plate arranged on the stamping bottom plate, a part containing groove formed in the stamping die plate and a spherical bearing body 205 arranged in the part containing groove, and an operator selects different shapes of the lower end faces of the detachable blocks; according to the gold stamping device, different rotation of gold during stamping is controlled by judging whether the grabbing end is in contact with gold or not and judging whether the grabbing end is in contact with the gold or not, then different patterns and shapes can be stamped on the gold, the gold stamping device is simple in structure, operation is manually controlled by an operator, operation is easy, the stamping capacity for different shapes of the gold is high, and the stamping efficiency is improved.

The invention belongs to the field of helicopter tilting mechanisms, and relates to an electric helicopter rotor tilting mechanism. Comprising a motor support (1), a tilting rocker arm (2), a tilting rotating shaft assembly (7), a universal ring assembly (8) and a lead screw speed reduction structure (5), the lead screw speed reduction structure (5) comprises a tilting motor (6), a primary gear reducer and a lead screw (4), and the lead screw speed reduction structure (5) is connected with a machine body structure (3) through the universal joint assembly (8); the output end of the tilting motor (6) is connected with the input end of the primary gear reducer; the output end of the primary gear reducer is connected with one end of a lead screw (4); a rotor wing driving motor and a rotor wing are mounted on the motor support (1); one end of the tilting rocker arm (2) is fixedly connected with the motor support (1) through a bolt; the other end of the tilting rocker arm (2) is connected with the other end of the lead screw (4) through a joint bearing (17); and the motor support (1) is hinged with the machine body structure (3) through a tilting rotating shaft assembly (7).

The invention relates to the technical field of machining monitoring, in particular to an insert bearing machining monitoring method and system. The method comprises the following steps that torque signals and axial position information of a to-be-monitored grinding spindle at each moment are collected; performing time synchronization on the torque signal and the axial position information at each moment, and confirming the torque signal and the axial position information at each moment after synchronization; analyzing the fluctuation form of the torque signal at each moment after synchronization, and comparing the fluctuation form with a preset torque fluctuation characteristic to obtain an abnormal torque signal; and on the basis of the abnormal torque signal and the axial position information at each moment, the monitoring result of the local area of the surface of the grinding wheel is confirmed. The invention aims to solve the problem that the abnormal state and the abnormal position of the local area of the surface of the grinding wheel cannot be accurately identified by the existing monitoring method.

The utility model provides a high-voltage cable joint peeling, cutting and polishing integrated device, which relates to the technical field of cable installation and construction and comprises a base, a pair of fixing plates are respectively installed on the upper end face of the base, and a guide rod and a threaded rod are respectively inserted between the pair of fixing plates. The guide rod and the threaded rod are jointly sleeved with a moving plate and an operating frame, a cavity is formed in the operating frame, a gear disc is mounted on the inner wall of the cavity through a spherical bearing seat, mounting grooves are formed in the surface of one side of the gear disc at equal intervals, and a plurality of first electric telescopic rods are mounted in the mounting grooves; and a polishing head and a cutting blade are mounted on the surface of the electric telescopic rod I. The device is novel in overall design, simple in structure and capable of rapidly peeling, cutting and effectively polishing a cable, the automatic operation process is achieved, and the overall operation efficiency of the device can be greatly improved.

The invention relates to the technical field of mixing machines, and discloses an automatic rotating vertical helical ribbon mixer which comprises a mixer body, a helical ribbon stirrer is arranged in the mixer body and comprises a rotating shaft and a helical ribbon, a spherical bearing is mounted at the top of the mixer body, and the upper end of the rotating shaft is inserted into the spherical bearing. A shell is mounted at the top of the spherical bearing, a speed reducer for driving the rotating shaft is mounted in the shell, a motor for driving the speed reducer is mounted on the outer side of the shell, an electric push rod is arranged at the top of the mixing machine body, the telescopic end of the electric push rod is rotationally connected with the shell, a limiting rod is mounted on the outer side of the rotating shaft, and an annular groove is formed in the inner wall of the mixing machine body; the ends of the limiting rods are inserted into the inner sides of the annular grooves. The motor drives the speed reducer to drive the helical ribbon stirrer to rotate, and the limiting rod and the annular groove are matched for use, so that the electric push rod drives the helical ribbon stirrer to revolve, the load of electrical connection is reduced, and the mixer body is more economical and efficient.

The invention belongs to the technical field of mechanical assembly, and particularly relates to a device and method for detecting rotation flexibility of an inner ring and an outer ring of a knuckle bearing under the action of torque, and the device comprises a base, one side of the base is fixedly connected with a support, the support is provided with a step main shaft, one end of the step main shaft is provided with a rotation unit, and the other end is sleeved with the inner ring of the knuckle bearing. The fixing unit is matched with the first step face so that the knuckle bearing inner ring can rotate along with the step main shaft, a wheel is further rotationally arranged on the step main shaft and between the knuckle bearing inner ring and the support, a directional shaft is arranged on the wheel, and a balance weight unit connected with the wheel is arranged on the base. The inner ring and the outer circle of the knuckle bearing are ingeniously integrated with elements in the detection device through the directional shaft and the fixing unit, and when the rotating unit drives the inner ring of the knuckle bearing to rotate by one circle, whether the counterweight unit leaves the base or not is observed to judge the rotation flexibility. The torque is determined by the wheels and the counterweight unit. The device is ingenious and simple in structure, convenient and easy to manufacture and detect and low in cost.

The invention discloses a self-lubricating joint bearing service life test platform which comprises an oil cylinder, a test support, a main shaft, a bottom plate and a hollow rotating platform. The self-lubricating joint bearing is placed on the bottom plate, the two spindles are located on the two sides of the self-lubricating joint bearing respectively, one end of each spindle is connected with the self-lubricating joint bearing, the other end of each spindle is coaxially connected with one end of the test support, the other end of the test support is connected with a piston of the oil cylinder, and the hollow rotating platform is located below the bottom plate. The hollow rotating platform can rotate, swing and incline, the self-lubricating joint bearing also rotates, swings and inclines along with the hollow rotating platform, the accuracy of bearing service life prediction can be improved, a scientific basis can be provided for design and application of the bearing, the working condition applicability of the bearing is expanded, and the service life of the bearing is prolonged. And a user unit is helped to optimize maintenance and replacement plans, and the method has remarkable practical value and social and economic benefits.

The utility model belongs to the technical field of bearing production equipment, and particularly relates to a spherical bearing production outer ring grinding device which comprises a bottom box, a shell is fixedly mounted at the top of the bottom box, a motor box is slidably mounted at the top of the bottom box, a clamping box is arranged on the right side of the motor box, and a first motor is fixedly mounted on the inner wall of the left side of the bottom box; a wire moving mechanism is arranged between the first motor and the bottom box, and a first seat hole is formed in the top of the bottom box; a second motor is fixedly installed on the inner wall of the left side of the motor box, an output shaft of the second motor is fixedly connected with the left side of the clamping box, and a third motor is fixedly installed on the inner wall of the left side of the clamping box. The bearing outer ring polishing device is reasonable in design, the two-way mechanism and the limiting mechanism are arranged, a bearing inner ring can be extruded and fixed through two anti-skid pads, a bearing outer ring can be prevented from being shielded, and then the purposes that the bearing outer ring polishing range can be enlarged, and the bearing outer ring can be conveniently polished can be achieved.

The bearing assembly is used for arranging a synchronizing shaft of the photovoltaic support and comprises a bearing seat and a spherical bearing. The bearing seat comprises a first seat body and a second seat body, the first seat body is provided with a first mounting hole, the second seat body is provided with a second mounting hole, and the first seat body and the second seat body are fixedly connected through a connecting structure. When the first seat body and the second seat body are in butt joint and matched, the first mounting hole and the second mounting hole are coaxial, and the hole wall of the first mounting hole and the hole wall of the second mounting hole are used for jointly supporting the spherical bearing and enabling the spherical bearing to rotate around the axis of the first mounting hole and the axis of the second mounting hole. By arranging the spherical bearing, upward supporting force can be provided for the synchronizing shaft, deflection deformation is reduced, and meanwhile the phenomenon that the synchronizing shaft is stuck is effectively improved. In addition, the split type bearing seat is adopted, a pre-tightening structure is arranged, pre-installation of the bearing assembly can be achieved, a user can achieve assembly of the bearing assembly through fewer fasteners, and installation is faster.

The utility model relates to box closing equipment for synchronously pulling and pressing a rotor ball bearing during box closing of a stator and a rotor. The box closing equipment comprises a motor shell gripping apparatus, a centralizing pulling and pressing structure, a pulling and pressing counter-force mechanism and a pulling and pressing electric cylinder, the centralizing tension-compression structure is provided with a tension-compression centralizing rod and a tension-compression pressure head; the lower end of the pulling and pressing head abuts against a bearing installed in the motor shell small assembly. The tension-compression righting rod penetrates through the tension-compression pressure head and is detachably and fixedly connected with the rotor shaft; wherein the pulling and pressing righting rod moves along with the pulling and pressing electric cylinder to drive the rotor shaft to move upwards, the mounting plate where the pulling and pressing pressing head is located is connected with a pulling and pressing counter-force plate extending in the vertical direction, and the pulling and pressing counter-force mechanism abuts against the upper end of the pulling and pressing counter-force plate to reversely press the bearing into the rotor shaft. The assembly process sequence is adjusted, the bearing is installed on the small motor shell assembly in advance, the ball bearing is synchronously pulled and pressed into the rotor shaft when the stator and the rotor are assembled, and meanwhile, the inner ring of the bearing is jacked by the pulling and pressing head, so that the bearing quality is prevented from being damaged due to the stress of the ball bearing.

A connecting device including first and second off-center rings, the second ring being positioned in the first ring. The peripheral outer surface of the first ring is frustoconical and has a smaller cross section oriented in a first direction, and the inner surface of the first ring and the outer surface of the second ring, which surfaces interact with one another, have cross sections which increase between a first cross section and a second cross section that is offset in relation to the first cross section in an opposite direction to the first direction. This arrangement makes it possible to be able to prevent the rotation of the first and second rings once their angular positioning has been adjusted.

The utility model relates to the technical field of photovoltaic equipment, and discloses a bearing assembly and a photovoltaic tracking support, the bearing assembly comprises a first spherical bearing assembly and a second spherical bearing assembly, the first spherical bearing assembly comprises a first spherical bearing and a first bearing pedestal, the first spherical bearing is provided with a first mounting space penetrating through the axial direction of the first spherical bearing, and the second spherical bearing is provided with a second mounting space penetrating through the axial direction of the second spherical bearing; and the second spherical bearing assembly comprises a second spherical bearing and a second bearing seat, and the second spherical bearing is provided with a second mounting space used for mounting a synchronizing shaft. The first bearing seat and the second bearing seat are respectively provided with a first mounting part and a second mounting part which penetrate through the axial direction, the first mounting part is used for mounting the first spherical bearing, and the second mounting part is used for mounting the second spherical bearing. According to the structural design, the bearing assembly can adapt to complex terrain changes, the stability and tracking precision of the photovoltaic tracking support are improved, and therefore the sunlight receiving efficiency of the photovoltaic module is optimized.