528results about "Bearing cooling" patented technology

A bearing and flywheel system can include a first bearing portion having an opening of a first dimension there through and a central longitudinal axis, a second bearing portion having a second dimension, the second dimension being smaller than the first dimension, and a flywheel coupled to the second bearing portion. The bearing portions can include high-temperature superconductor(s) and / or magnets. The second bearing portion can be disposed at least partially within the opening through the first bearing portion. A gap can exist between an outer surface of the second bearing portion and an inner surface of the first bearing portion. The second bearing portion can be configured to rotate relative to the first bearing portion.

The invention relates to the technical field of bearing structures, and discloses a lightweight thin-wall crossed roller bearing for a high-precision industrial robot, the lightweight thin-wall crossed roller bearing comprises a mounting seat, an outer ring, an inner ring and a crossed roller set, the outer ring is fixed in the mounting seat, the inner wall of the outer ring is provided with a first V-shaped channel, the outer wall of the inner ring is provided with a second V-shaped channel, and the crossed roller set is fixed in the mounting seat; the first V-shaped channel and the second V-shaped channel are combined to form a roller path for accommodating the crossed roller group, and a sealing ring is arranged at an annular gap between the two end surfaces of the outer ring and the inner ring; the lubricating assembly comprises a valve cavity formed in the outer ring, a lubricating flow channel communicating with the valve cavity and a distributor located at an outlet of the lubricating flow channel, and a valve element is arranged in the valve cavity. By arranging the lubricating assembly, lubricating oil can be supplied to the crossed roller set in a self-adaptive mode according to the working temperature of the bearing, the surface of the crossed roller set is evenly covered with the seepage holes in the distributor in an infiltration mode, and an oil film is formed to achieve lubrication and heat dissipation.

The invention discloses a non-contact mechanical sealing device for a rolling bearing, and relates to the technical field of non-contact sealing, the non-contact mechanical sealing device comprises a sealing end shell, a mounting flange, a connecting end shell and a rotating shaft, the sealing end shell is internally provided with a sealing mechanism for realizing sealing of a connecting structure of the sealing end shell and the rotating shaft; a lubricating mechanism for promoting liquid in the sealing end shell to flow back and forth is arranged on the side face of the sealing mechanism. An outer liquid sealing mechanism used for supplementing lubricating oil in the sealing end shell in real time is installed on the front side of the sealing end shell, and a liquid conveying port is formed in the outer surface of the outer liquid sealing mechanism. The sealing mechanism comprises an inner sealing ring, an annular sealing structure is additionally arranged at the joint of the side face of the sealing end shell and the rotating shaft through the side sealing ring groove and the side wedge ring, a multi-stage sealing defense line is formed by the annular sealing structure and a main sealing interface, and the overall sealing reliability between the inner wall of the sealing end shell and the rotating shaft in the axial direction and the radial direction is further improved.

The invention belongs to the field of rotating machinery bearing engineering and magnetic circuit design, and discloses a bearing bush and magnetic circuit integrated structure with radial and axial composite vortex suppression slots. The partition magnetic conduction embedded blocks are embedded into the bearing bush body in an annular multi-sector array and are symmetrically arranged between the left end face and the right end face of the bearing bush body in the axial direction; the vortex suppression slits are arranged at equal intervals along the circumferential direction of the bearing bush body; the partition water paths are respectively arranged on the back sides of the partition magnetic guide embedded blocks; the compliant thin-wall area is a liquid film area arranged between the bearing bush body and the partitioned magnetic conduction insert block; the magnetic flux gathering windows are magnetic path areas with small magnetic resistance in the bearing bush body, and each partition magnetic conduction embedded block correspondingly forms one magnetic flux gathering window and is distributed in the bearing bush body on the back side of the partition magnetic conduction embedded block. The adjustable shielding sheet is parallel to the surface of the bearing bush body and arranged in the axial center area of the bearing bush body.

The invention discloses an organic working medium turbine axial force supporting component which comprises a hydraulic thrust disc, thrust pads, oil sprayers, a thrust base ring and a clamping ring, the multiple thrust pads are evenly distributed in the circumferential direction and supported on the thrust base ring through protruding edges at the bottoms of the thrust pads, and the oil sprayers are fastened to the thrust base ring and located between the thrust pads. A plurality of middle oil injection holes for supplying lubricating oil to the middles of the pads are formed in the top of the oil injector in the radial direction, inclined planes are arranged on the two sides of the oil injector, outer inclined plane oil injection holes and inner inclined plane oil injection holes for supplying cooling oil are formed in the inclined planes, end discharge grooves are formed in the positions, close to the inner diameter, of the thrust pads, and oil blocking dams are formed between the end discharge grooves and the inner diameter of the thrust pads in the radial direction. And the end discharge chute is communicated with a cooling hole arranged in the thrust pad. The stirring loss of lubricating oil gathered between the inner diameter of the thrust pad and the rotating shaft is avoided, the high-temperature area of the thrust pad is cooled through low-temperature lubricating oil discharged along the inner diameter end of the thrust pad, and the bearing capacity of the axial force supporting component of the organic working medium turbine is improved.

The invention discloses a rotor bearing cooperative temperature control method, which comprises the following steps of: acquiring rotor bearing end face hot spot region information, millimeter-level spatial resolution local temperature field distribution information and vibration spectrum and local temperature information, and fusing to generate rotor bearing global temperature field model information; according to the rotor bearing global temperature field model information, a double closed-loop control system is operated or a phase change microcapsule coolant is triggered; when the double-closed-loop control system is operated, the viscosity and the flow of lubricating oil are adjusted, and / or the flow of cooling water is dynamically distributed through a variable nozzle array, and operation data of the double-closed-loop control system are output; when the phase change microcapsule coolant is triggered, the rotor bearing is subjected to point-shaped cooling; and running data of the double-closed-loop control system is subjected to deep reinforcement learning dynamic optimization and fault mode knowledge graph pre-judgment and then is transmitted back to the double-closed-loop control system. The operation reliability and the service life of the rotor bearing can be remarkably improved.

The utility model relates to a tilting-pad sliding bearing of a steam turbine. The tilting-pad sliding bearing comprises a pad body, a pad block and an oil retainer, the multiple tile blocks are evenly distributed on the inner ring of the tile body in the circumferential direction, and the oil retaining rings are arranged on the two axial sides of the tile body. Two adjacent tiles are provided with mounting spaces in the circumferential direction of the inner rings of the tile bodies, shaft lubricating assemblies used for supplying oil to the positions between the tiles and the rotor are arranged in the mounting spaces, oil spraying holes are formed in the shaft lubricating assemblies, and the oil spraying holes are formed towards inlets in the oil inlet sides of the tiles; a jacking shaft device is arranged on the tile block at the bottom of the tile body inner ring and used for supporting the rotor; and the jacking shaft device adopts a one-way valve to supply oil to a jacking shaft oil bag through a tile block side wall channel. The bearing provided by the utility model can enhance the cooling effect of the pads, the temperature of an oil film is easier to adjust and control, and collision and abrasion caused by sudden loss of jacking oil pressure in the starting process can be avoided.

The invention discloses a rail transit bearing with self-adaptive lubrication and efficient heat dissipation. The rail transit bearing comprises a shape memory alloy valve, a bearing body and a cooling sleeve, wherein a cooling flow channel is formed in the cooling sleeve; the cooling sleeve is arranged on the periphery of an outer ring of the bearing, an oil supplementing ring is arranged between the outer ring and an inner ring of the bearing, the shape memory alloy valve is fixed to the oil supplementing ring, an oil storage cavity and an oil outlet communicated with the oil storage cavity are defined by the shape memory alloy valve and the oil supplementing ring, and the oil outlet is opposite to a roller of the bearing. When the internal temperature of the bearing is not higher than a first threshold value, the shape memory alloy valve is in a closed state, and the oil outlet hole is closed; and when the internal temperature of the bearing is not lower than a second threshold value, the shape memory alloy valve is in an open state, and the oil outlet is opened at the moment. Lubricating grease is stored through the oil storage cavity, and oil supply is controlled through opening and closing of the shape memory alloy valve. Heat exchange is carried out through the cooling sleeve and the bearing, heat accumulation is avoided, it is guaranteed that the bearing can operate within a proper temperature range, and normal operation of the bearing is guaranteed from the two aspects of lubrication and heat dissipation.

The utility model is suitable for the technical field of bearing seats, and provides a durable automobile bearing seat forge piece which comprises an outer ring. The retainer is arranged in the outer ring, a plurality of balls are arranged on the retainer, and the balls are in contact with the inner wall of the outer ring; the inner ring is assembled in the retainer; the heat dissipation mechanism is arranged on the outer ring and is used for dissipating heat in the outer ring; and the lubricating mechanism is arranged on the outer ring and is used for lubricating the balls. The durable automobile bearing seat forge piece provided by the scheme is good in heat dissipation effect, the failure rate caused by the poor heat dissipation effect on the whole is reduced, and therefore the whole durability is enhanced.

The application discloses a high-applicability adjustable bearing seat and relates to the field of bearing seats.The bearing seat body is provided with an external reserved butt joint at the upper end;an internal liquid storage cavity is formed in the inner side of the upper end of the bearing seat body;the upper end of the inner wall of the bearing seat body is provided with a reserved supply channel, and the reserved supply channel and the inner side of the internal liquid storage cavity are connected with each other;and the upper end surface of the bearing seat body is provided with a supply reserved pipe.The high-applicability adjustable bearing seat is provided with an auxiliary guiding structure, the internal lubrication state of the bearing seat body is adaptively controlled through the auxiliary guiding structure, and along with the high-speed operation state of the equipment, the oil liquid stored in the internal liquid storage cavity is adaptively used for self-lubricating treatment in cooperation with the opening and closing state of the reserved supply channel;in the process that the end bearing is conducted at a high speed, the high-heat abrasion is avoided, and the speed of bearing transmission in the equipment is not affected.

The utility model provides a bearing lubricating and cooling device which comprises a bearing assembly, a bearing seat used for installing a bearing is arranged in the bearing assembly, and a group of bearing grooves are formed in the rear side face of the bearing seat in a vertical penetrating mode. The two lubricating and cooling assemblies are symmetrically mounted on the front side and the rear side of the bearing seat, lubricating oil is guided into the two lubricating and cooling assemblies and sprayed out to the rotating part of the bearing through the multiple lubricating holes, and a cooling medium is guided into the two lubricating and cooling assemblies through the cooling guide pipe and guided out through the cooling annular groove to cool an inner ring of the bearing. And a cooling medium is guided into the cooling transfer groove and transmits and cools the mounting position of the bearing outer ring through the cooling communication groove, so that the lubricating and cooling effects can be improved, the bearing assembly is additionally arranged, lubricating oil is collected through the collecting groove after being used, and therefore auxiliary recycling of the lubricating oil can be achieved.

The cryogenic expansion turbine system (10) includes a turboexpander (12) configured to receive and expand a cryogenic gas supply stream (24). A rotating shaft (16) operatively connects the turboexpander to a compressor (14) or a resistance device, such as a braking device. A bearing housing (18) has a bearing cooling fluid inlet port and a bearing cooling fluid outlet port. Electromagnetic bearings (22) are disposed within the bearing housing and rotatably support the rotating shaft. A bearing cooling circuit (72) directs a flow of bearing cooling fluid (62) through the bearing cooling fluid inlet port and into the bearing housing, thereby cooling the electromagnetic bearings, and the resulting warmed bearing cooling fluid (68) exits the bearing housing through the cooling fluid outlet port.

The application discloses an organic working medium turbine axial force supporting component, which comprises a hydraulic thrust disc, thrust pads, an oil sprayer, a thrust base ring and a snap ring, the thrust pads are uniformly distributed in the circumferential direction and are supported on the thrust base ring through the convex edges at the bottom of the thrust pads, the oil sprayer is fastened on the thrust base ring and is located between the thrust pads, a plurality of middle oil injection holes for supplying oil for lubricating the middle part of the thrust pads are formed in the top of the oil sprayer in the radial direction, the two sides of the oil sprayer are provided with inclined surfaces, and outer inclined surface oil injection holes and inner inclined surface oil injection holes for supplying cooling oil are arranged on the inclined surfaces, end leakage grooves are arranged at the position close to the inner diameter of the thrust pads, an oil dam is formed between the end leakage grooves and the inner diameter of the thrust pads in the radial direction, and the end leakage grooves are communicated with the cooling holes arranged in the thrust pads. The application avoids the stirring loss of the lubricating oil accumulated between the inner diameter of the thrust pads and the rotating shaft, realizes the cooling of the high-temperature area of the thrust pads by using the low-temperature lubricating oil leaked from the inner diameter end of the thrust pads, and improves the carrying capacity of the organic working medium turbine axial force supporting component.

The utility model belongs to the technical field of linear sliding rails, and particularly relates to a high-stability linear guide rail ball sliding block which comprises a bearing sliding block and a ball arranged on the inner wall of the bearing sliding block, runway type ball double-sliding sealers are arranged on the two sides of the bearing sliding block, each runway type ball double-sliding sealer comprises an internal area and an external area, and the internal area and the external area are arranged on the bearing sliding block. The balls are contained in the runway type ball double-sliding sealer through a rotary fixator, and the balls in the built-in area make contact with a sliding rail. A runway type ball double-sliding sealer is adopted, a rotary fixator serves as a positioner of balls, when the balls expand, the rotary fixator is driven to rotate to replace the balls by means of the friction force relation between the balls and the fixator, the heated balls are located on the outer side, a high-speed sliding block and fins are combined for cooling, and along with adding of wind power cooling, the temperature of the high-speed sliding block is lowered. The heat dissipation burden of the lubricating oil is reduced, the problem of rotation resistance caused by thermal expansion is solved, and the use amount of the lubricating oil is reduced.

The utility model relates to the technical field of bearing boxes, in particular to a bearing box with a cooling fan, which comprises a shell, a bearing main body is mounted on the shell, a coupler is arranged in the shell, shaft covers are symmetrically mounted at two ends of the coupler, fan seats are mounted between the shaft covers and the coupler, and the fan seats are mounted on the bearing main body. Fan blades used for heat dissipation are evenly installed on the fan base, threaded rods are symmetrically and fixedly installed on the coupler, and nuts are installed on the threaded rods in a threaded mode. When the centrifugal pump is used, the motor drives the input shaft of the centrifugal pump to rotate through the shaft cover and the coupler, in the process, the fan base can be driven to rotate, the fan base can drive the fan blades to rotate, the fan blades can drive air to flow, the fan blades are provided with inwards-gathered cambered surfaces, and therefore when the fan blades drive the air to flow, the air can be promoted to be gathered inwards and blown to the bearing body, and the fan blades are prevented from being damaged. And the bearing main body is cooled, so that the effect of reducing the equipment failure rate is achieved.

The invention discloses a radial and thrust combined sliding bearing for a gear transmission device, and relates to the technical field of bearings. The problems that a common sliding bearing can only bear force in a single direction, radial and thrust bearings need to be arranged at the same time, and light weight and integration of a device are not facilitated are solved. The bearing comprises a bearing body, the bearing body is installed in a bearing box, the bearing body is made of carbon structural steel, a radial positioning piece and an axial positioning piece are arranged between the bearing body and the bearing box, lubricating oil flows to the bearing body through a first channel and flows to a thrust pad through a second channel, and under the action of a rotating gear shaft, the bearing body is driven to rotate. According to the bearing, dynamic pressure liquid friction is established, the effects of radial supporting and axial positioning are achieved, the thrust pads on the two sides of the bearing body can bear axial stress in two directions, radial and thrust bearings do not need to be arranged at the same time, the axial size can be effectively reduced under the condition that the axial space of a gearbox is limited, and integration is better.

The utility model relates to the technical field of fiber processing, in particular to automatic lubricating equipment which comprises a box body, an oil outlet pipeline system, an oil return pipeline system and a cooling and filtering system, and the interior of the box body is divided into an oil storage cavity and an oil purification cavity by a partition plate; the oil outlet pipeline comprises at least one oil outlet pipeline, and the oil outlet pipeline is communicated with the oil purifying cavity and an inlet of the bearing seat; the oil return pipeline comprises at least one oil return pipeline which is communicated with an outlet of the bearing seat and the oil storage cavity; the cooling and filtering system is used for cooling and filtering oil in the oil storage cavity and then conveying the oil to the oil purification cavity; in the horizontal direction, the inlet and the outlet are oppositely formed in the two sides of the bearing seat. According to the design, the inlet and the outlet which are oppositely formed in the bearing seat can guarantee that lubricating oil makes full contact with the bearing for cooling, oil in the oil storage cavity flows back to the oil purification cavity after being filtered and cooled, the cooling effect of the lubricating oil is guaranteed, and the raw material cost is saved through recycling.

The utility model relates to the technical field of bearing pedestals, and provides a bearing protection system which comprises a first lantern ring, a second lantern ring and a third lantern ring, the first lantern ring is used for being arranged on a bearing in a sleeving mode, and the first lantern ring is provided with a first channel; a first air inlet and at least two air outlets are formed in the side wall of the first channel and are divided into two sets, and the two sets of air outlets are located in the two axial ends of the bearing correspondingly and face the middle of the first lantern ring. By means of the technical scheme, the technical problems that in the prior art, dust particles easily enter the bearing, abrasion is aggravated, and normal operation of the bearing is affected are solved.

The utility model discloses a metal composite bushing, which relates to the technical field of composite bushings and comprises an outer connecting ring component, an inner bushing component arranged on the inner side of the outer connecting ring component, a bushing tube component arranged on the inner side of the inner bushing component, and an outer connecting ring body, the outer connecting ring assembly comprises an outer connecting ring body, multiple sets of first heat dissipation holes distributed in the circumferential direction are formed in the outer end of the outer connecting ring body, the neck bush assembly comprises a neck bush body, multiple installation grooves distributed in the circumferential direction are formed in the inner end of the neck bush body, the inner wall of each installation groove is rotationally connected with a follow-up shaft through a bearing, and a rolling shaft is fixedly installed at the outer end of each follow-up shaft. By means of the outer connecting ring body, the first heat dissipation holes, the neck bush body, the second heat dissipation holes and the installation groove, the follow-up shaft can be rolled to conveniently install the neck bush assembly into the outer connecting ring body, meanwhile, the end of the follow-up shaft which is used for a long time can be directly cooled, and the service life of the follow-up shaft is prolonged.

Bearing arrangement (1), comprising a bearing journal (5) for rotationally fixed arrangement on a first housing part (3). The invention further relates to a side channel compressor (27) and a fuel cell system (2) with a bearing arrangement (1) according to the invention.

An eccentric shaft assembly includes a first eccentric shaft including an interior surface forming a recess therein, an exterior surface, at least one first fluid inlet extending between the interior surface and the exterior surface, at least one first fluid outlet extending between the interior surface and the exterior surface. The eccentric shaft assembly further includes a second eccentric shaft disposed in the recess of the first eccentric shaft that includes a second bearing surface engaging the first bearing subassembly opposite the first bearing surface and at least one first fan blade for rotating about an axis of rotation to force a fluid to enter the recess through the first fluid inlet(s) and exit the recess through the first fluid outlet(s), to lubricate and / or cool a bearing subassembly disposed between the first eccentric shaft and the second eccentric shaft.

The utility model discloses a self-adaptive lubricating and cooling device for a cutting arm of a coal mine heading machine, and relates to the technical field of lubricating and cooling devices. The connecting cylinder is rotatably arranged outside the cutting main shaft in a sleeving manner; the front bearing is mounted between the inner wall of the front end of the connecting cylinder and the cutting main shaft; the rear bearing is mounted between the inner wall of the rear end of the connecting cylinder and the cutting main shaft; the oil storage cavity is formed among the inner wall of the connecting cylinder, the outer wall of the cutting main shaft and the axial end surfaces of the front bearing and the rear bearing; the communicating piece is arranged in the middle of the oil storage cavity; the communicating piece comprises an annular sealing ring and a communicating pipe; the annular sealing ring is arranged in the middle of the oil storage cavity and divides the oil storage cavity into a front cavity and a rear cavity; according to the utility model, partial flow and distribution of lubricating oil in the front chamber and the rear chamber are realized through the communicating pipe, so that the front bearing and the rear bearing can still be fully lubricated even if the cutting main shaft is in a complex posture of lifting or downward cutting, and a lubricating blind area is avoided.

This application provides a motor with distributed oil-passing on a motor shaft, a powertrain, and an electric vehicle. The motor includes a motor end cover, a motor rotor, a motor bearing, and a motor shaft. The motor end cover and the motor rotor are spaced from each other along an axial direction of the motor. The motor end cover includes a motor shaft hole. The motor shaft hole is configured to accommodate the motor bearing and a part of the motor shaft. The motor bearing is sleeved on the motor shaft. The motor shaft is rotatably connected to the motor end cover through the motor bearing, so that the motor shaft can rotate relative to the motor end cover. The motor shaft includes a motor shaft cavity and at least one motor bearing lubricating oil hole. Along the axial direction of the motor, the motor shaft hole penetrates the motor end cover, and the motor shaft cavity penetrates the motor shaft. Along a radial direction of the motor, the motor bearing lubricating oil hole penetrates the motor shaft. Along the axial direction of the motor, the motor bearing lubricating oil hole, the motor bearing and the motor rotor are spaced from each other. In this application, cooling oil in the motor shaft cavity can lubricate the motor bearing through the motor bearing lubricating oil hole, to avoid a failure of the motor bearing and ensure normal operation of the motor.

The objective is to provide a bearing cooling control system for a rotating machine that can appropriately estimate the inner ring temperature even if the rotating machine does not have special equipment for measuring the inner ring temperature, and even if the inner ring temperature and outer ring temperature are in a non-steady state, and that can appropriately control the cooling state of the bearing by the cooling device based on the estimation result. [Solution] The inner ring temperature is measured in relation to the load of the motor 9, the rotational speed of the spindle 7, and the elapsed time t after the change in the rotational speed of the spindle 7. N And the elapsed time t after the change in the operating state of the cooling device 14. C And the outer ring temperature T measured by the outer ring temperature measuring unit 6 out Based on this, one or more inner ring temperature estimation models corresponding to the operating state of the cooling device 14 are used to estimate the inner ring temperature T in The estimated inner ring temperature T in The outer ring temperature T is measured as out Based on this, the operating state of the cooling device 14 or the operating state of the spindle 7 is controlled.

The utility model discloses a high-speed oil-cooled motor capable of cooling a bearing. The high-speed oil-cooled motor comprises a cylindrical shell, a front end cover and a rear end cover. And a barrel shell channel is arranged on the barrel shell. The front end cover is provided with a front bearing cooling channel which is communicated with the cylindrical shell channel. The rear end cover is provided with a rear bearing cooling channel which is communicated with the cylindrical shell channel. According to the high-speed oil cooling motor capable of cooling the bearing, after the cooling liquid enters the motor, the cooling liquid sequentially flows through the front bearing cooling channel, the barrel shell channel and the rear bearing cooling channel to cool the bearing, the bearing does not need to be provided with an additional cooling device and does not make direct contact with the cooling liquid, the risk that the cooling liquid leaks from the bearing cavity is completely eradicated, and the service life of the bearing is prolonged. The bearing can be lubricated through grease lubrication or lifelong lubrication, a circulating oil lubrication or oil-gas lubrication system does not need to be arranged, the sealing requirement of a bearing cavity is lowered, the system structure is simplified, the reliability of the system is improved, and the complexity and cost of the system are lowered.

This invention relates to the field of marine propulsion technology, specifically to an auxiliary propulsion structure for electric ships. The structure includes a ship hull, a propeller mounted on the bottom of the hull, and rotating rods fixedly connected to both sides of the hull. An auxiliary propeller is mounted on each rotating rod. Through an idling cooling mechanism, when the water inlet is above the water surface, causing the drive rod to drive the auxiliary propeller to idle, the idling cooling mechanism opens an emergency water path. This allows pre-stored cooling water from the tank to be precisely delivered via drip pipes to the junction of the drive rod and the bearing. This directional dripping forms a water film at the friction interface, providing immediate lubrication and drag reduction, as well as rapid heat absorption and cooling, preventing high-temperature wear, deformation, or sintering of components. Compared to traditional unprotected designs, this mechanism is fast-responding and highly targeted, minimizing damage to core components during idling and ensuring reliable operation of the auxiliary propeller in complex waters.

The utility model provides a double-row four-point contact ball turntable bearing, and relates to the field of bearings. A groove is formed in the outer side of the internal assembly, annular and evenly-arranged guide pieces are fixed to the top end of the internal assembly through a connecting plate assembly, the two sides of the bottom of each guide piece are of an inclined structure, side plate assemblies are fixed to the side edges of the connecting plate assembly, and the outer ends of the side plate assemblies which are obliquely arranged are of a wedge-shaped structure. The internal assembly drives the connecting plate assembly, the guide piece and the side plate assembly to rapidly rotate together, air guiding circulation is controlled, the air passes through the bottom of the guide piece, the two sides of the guide piece are of an inclined structure, the air is controlled to enter the heat dissipation holes, the air passes through the interior of the internal assembly, the heat dissipation effect and the heat dissipation strength of the internal assembly are improved, and the heat dissipation efficiency is improved. The service life is prolonged, and the problem that the service life of a common double-row four-point contact ball turntable bearing is affected due to the fact that the temperature is high and the heat dissipation efficiency is limited after long-time operation is solved.

The invention provides a bearing oil cooling structure and an oil cooling motor, relates to the technical field of oil cooling motors, and can improve the heat dissipation effect of a bearing. The bearing oil cooling structure comprises a bearing plate, a bearing and a bearing bush, a bearing mounting groove is formed in the surface of one side of the bearing plate, the bearing plate is further provided with an oil inlet channel, and an opening in one end of the oil inlet channel is located in the groove wall of the bearing mounting groove; the bearing comprises an outer ring and an inner ring; the bearing bush is installed in the bearing installation groove and arranged on the periphery of the bearing in a sleeving mode. One part of the inner circumferential surface of the bearing bush is matched with one part of the outer circumferential surface of the outer ring of the bearing to define a cooling cavity; the bearing bush is provided with an oil way channel, and the oil way channel communicates with the oil inlet channel and the cooling cavity. The bearing bush is provided with an oil outlet hole, an opening in one end of the oil outlet hole is located in the surface, facing the groove bottom wall of the bearing installation groove, of the bearing bush, and an opening in the other end of the oil outlet hole communicates with the cooling cavity.

The utility model relates to the technical field of machine manufacturing, in particular to a stable-performance bearing axle box which comprises a box body, a motor is arranged on the left side wall of the box body, a liquid inlet pipe is arranged on the right side wall of the box body, an upper shell is arranged on the top of the outer wall of the box body, and a lower shell is arranged on the top end wall of the upper shell. A top seat is arranged on the outer wall of the lower shell, a filter screen is arranged at the bottom of the outer wall of the box body, a connecting seat is arranged on the bottom end wall of the filter screen, an oil tank is arranged on the bottom end wall of the connecting seat, an oil pump is arranged on the left side wall of the oil tank, and one end of a liquid drainage pipe is arranged at the output end of the oil pump. The bearing axle box has the remarkable beneficial effects of improving the utilization efficiency of lubricating oil, guaranteeing the stable performance of the bearing axle box, improving the overall working quality of equipment, enhancing the filtering and heat dissipation effects and the like, and a series of problems caused by the fact that the lubricating oil cannot be recycled in the prior art can be effectively solved.