4025results about "Engine lubrication" patented technology

The invention discloses a self-lubricating gasket capable of intelligently monitoring wear, the gasket comprises a substrate, a wear-resistant layer and a monitoring part, one side of the substrate is adhered to the inner side of a bearing outer ring, and the wear-resistant layer is arranged on the other side of the substrate; the multiple monitoring parts are arranged around the base in the circumferential direction and comprise conductive wear pieces and resistance sensors, the conductive wear pieces are embedded in the surface of the side, close to the wear-resistant layer, of the base, the resistance sensors are arranged in the base, and the conductive wear pieces are connected with the resistance sensors through positive and negative wires; and the substrate, the wear-resistant layer and the conductive wear sheet are all self-lubricating gaskets. When the self-lubricating gasket is used for a self-lubricating bearing, on the premise that the antifriction and abrasion resistance of the self-lubricating gasket is not affected, the resistance value change of the gasket on the bearing can be monitored, the abrasion loss of the gasket is monitored through the resistance value change, shutdown or equipment disassembly is not needed, the detection efficiency is improved, and the labor cost is reduced; errors caused by manual measurement are avoided, and the intelligent monitoring effect is achieved.

The invention discloses an energy-saving stage lamp moving and steering control adjusting device and a using method, and relates to the technical field of wastewater treatment.The energy-saving stage lamp moving and steering control adjusting device comprises a mounting base, a rotating base is arranged at the top of the mounting base, a lamp is arranged in the rotating base, and a rotating rod is fixedly connected to the bottom of the rotating base; according to the scheme, the memory metal wire can be lengthened along with the change of the temperature, so that the amplitude of rotation of the insulation cover driven by the traction piece is changed along with the change of the temperature; therefore, when the temperature is higher, the exposed area of a through groove formed in the outer side of the insulating cover and a groove formed in the inner side of the fixing ring is larger, the magnetic force borne by the first magnetic plate is larger, then the amount of liquid sprayed by the lubricating assembly is larger, and automatic adaptive adjustment is carried out.

A hybrid lubricating module includes a housing and an assembly which consists of at least two elements and has an axial hole run through by a shaft. At least one of the elements has one set of multiple notches on one end surface communicating with the axle hole. The housing has a through axial cavity to encase the assembly. The outer wall surface of the assembly and the inner wall surface of the housing are assembled to each other to form at least one storage chamber to store lubricating media. The multiple notches on at least one adjacent element form at least one set of fine flow passages communicating with the axial hole and the storage chamber.

The invention discloses a plug plugging and unplugging test device, and relates to the technical field of plug plugging and unplugging test.The plug plugging and unplugging test device comprises an operation table with an operation panel, a driving box, a fixing block and an auxiliary assembly, a mounting frame is fixedly arranged on the operation table, a first clamping plate and a second clamping plate are arranged on the two sides of the mounting frame respectively, and the driving box is fixedly arranged in the mounting frame; a supporting seat is fixedly arranged on the side, away from the driving box, of the interior of the mounting frame, a supporting plate is fixedly arranged at the bottom of the supporting seat, a second clamping assembly is arranged in the supporting seat, the fixing blocks are symmetrically arranged in the mounting frame, and symmetrically-distributed positioning rods are fixedly arranged on the outer side of the mounting seat. The fixing blocks are symmetrically arranged on the upper side and the lower side of the positioning rod, the first clamping plate for clamping a plug and the second clamping plate for clamping a socket are fixed at the same time through the mounting frame, then the positioning rod slides between the fixing blocks to accurately move the plug into the plug, and the situation that the plug is plugged in and out in a staggered mode due to vibration when the plug is plugged in and pulled out is prevented.

The utility model discloses a cable stranding device, which relates to the technical field of cable processing, and comprises a bottom frame, the top of the bottom frame is fixedly connected with a first fixing plate, the interior of the first fixing plate is fixedly connected with an oil brushing disc, the interior of the oil brushing disc is provided with a plurality of mounting holes, the interior of the oil brushing disc is provided with an oil brushing assembly, and the oil brushing assembly is fixedly connected with the bottom of the bottom frame. A first fixing plate is fixedly connected to the top of the bottom frame, a second fixing plate is fixedly connected to the top of the bottom frame, a twisting assembly is arranged in the second fixing plate, a supporting rod is fixedly connected to the top of the bottom frame, a collecting ring is fixedly connected to the top of the supporting rod, a fixing frame is fixedly connected to the top of the first fixing plate, and an oil storage tank is fixedly connected to the interior of the fixing frame. According to the utility model, the lubricating oil can be uniformly coated on the surface of the cable through the oil brushing assembly, so that the friction between the cable and the through hole and the collecting ring can be reduced, the cable is prevented from being damaged, and the abrasion of the through hole and the collecting ring is also reduced.

The invention relates to the technical field of vibration measurement, and particularly discloses a guide plate online dynamic amplitude anti-deviation laser monitoring device which comprises a fixing frame, a mounting groove is formed in the outer surface of the upper end of the fixing frame, a movable rod used for supporting a guide plate is fixedly connected to the inner side of the mounting groove, and a limiting assembly is arranged on the outer side of the movable rod. The limiting assembly comprises a notch formed in the outer surface of the guide plate, a limiting sleeve is fixedly connected to the outer surface of the movable rod, a pressing crack is formed in the outer surface of the limiting sleeve, and the limiting sleeve penetrates into the notch. By arranging the limiting assembly, when the position of the guide plate deviates, a limiting sleeve can play a role in correcting the deviation of the guide plate, so that the position of the guide plate is always in a proper position, and the influence of the position deviation of the guide plate on the measurement precision of the vibration amplitude of the guide plate can be reduced to a certain extent; and the monitoring error can be reduced to improve the monitoring precision.

A lubrication system for a chainsaw, the lubrication system including a reservoir housing a lubricant, a fluid conduit extending between the reservoir and a location adjacent to a chain of the chainsaw, a pump configured to move lubricant from the reservoir to the location adjacent to the chain, and a valve disposed along the fluid conduit. The valve has a lubricant inlet that receives lubricant from the reservoir, an air inlet, and an outlet that provides lubricant to the location adjacent to the chain. The valve is movable between an open position whereby lubricant passes from the lubricant inlet to the outlet and a closed position whereby the outlet is in fluid communication with the air inlet. The valve moves between the open and closed positions in response to a user input.

The invention discloses an electric capstan with multiple safety protections.The electric capstan comprises a capstan assembly, the capstan assembly comprises a cable body, two first protection assemblies are arranged at the bottom of the capstan assembly, and a second protection assembly is arranged between the outer surfaces of the two first protection assemblies; and two first protection assemblies. According to the electric capstan with the multiple safety protections, when a laser scanner detects that a certain position of the cable body is damaged, the upper portion of the damaged position is clamped and fixed through the four clamping blocks located on the upper portion, and then the four clamping blocks located on the lower portion are moved to the position below the damaged position to clamp and fix the cable body; multiple protection of the cable body in the electric capstan is achieved, and the problem that in the prior art, when a heavy object is lifted by a cable in the electric capstan, a certain section of the cable is damaged, the cable is broken, and the heavy object falls off is solved.

The invention relates to the technical field of grinding structures, in particular to a ball head pipe end grinding structure which comprises a supporting structure used for supporting a ball head body, a fixing mechanism for fixing the ball head body is installed above the supporting structure, and a grinding structure and a lubricating mechanism for machining the ball head body are installed on the fixing mechanism. The supporting structure comprises a base, a supporting rod welded to the upper surface of the base and a supporting cylinder detachably installed on the outer surface of the supporting rod. The fixing mechanism comprises a mounting cylinder fixedly mounted at the top end of the supporting rod; a transmission structure connected with the pump body is mounted on the mounting frame; an annular guide groove is formed in the outer surface of the top end of the supporting cylinder. The grinding device has the advantages of efficient grinding, intelligent lubrication, accurate control, high adaptability and simplicity and convenience in operation, the grinding effect of the ball head body can be remarkably improved, the service life of a tool can be remarkably prolonged, the labor intensity of operators is reduced, and the production efficiency is improved.

The invention discloses a vortex air inner-cooling and inner-lubricating grinding wheel which comprises a hot shaft assembly, a rotating seat assembly, a rotating main shaft, a fan-shaped spray head, a grinding wheel mounting disc assembly and a grinding wheel disc. A hot shaft in the hot shaft assembly, the fan-shaped spray head and a grinding wheel installation disc in the grinding wheel installation disc assembly are sequentially connected with a rotating main shaft through threads, and the grinding wheel disc and the grinding wheel installation disc are fastened through bolts. During machining, compressed air is introduced into one side of the grinding wheel, high-speed airflow generates vortexes through an internal vortex pipeline structure, cold airflow and hot airflow are separated out, and the cold airflow is separated towards the grinding wheel disc side. And meanwhile, lubricating liquid is introduced into the other side of the grinding wheel, cold air and the lubricating liquid converge and enter a grinding wheel disc cavity through a fan-shaped spray head, and then flow out through a grinding wheel hole to cool and lubricate a grinding area. The grinding force and the grinding heat during grinding are effectively reduced, the production cost is reduced, the grinding quality is improved, and green machining is achieved.

The invention discloses an electric drive lubricating and cooling system and a vehicle. The electrically-driven lubricating and cooling system comprises a shell assembly, a controller, a motor, a speed reducer, an oil pump and an oil cooler, the shell assembly is provided with a motor installation cavity, a controller installation cavity, a water cooling cavity, a speed reducer installation cavity and an oil storage cavity, the speed reducer installation cavity and the oil storage cavity are communicated, and a plurality of oil channels and a plurality of water channels are arranged in the box wall of the shell assembly. The oil pump, the oil cooler, the stator mounting cavity and the speed reducer mounting cavity are sequentially communicated through oil ducts to form an electric drive lubricating and cooling loop; the oil cooler communicates with the water cooling cavity through a water channel. And the stator core and the stator winding are immersed in the circulating oil liquid for heat dissipation, so that the cooling efficiency is high. Lubricating oil and cooling liquid for cooling the controller circulate in the box wall of the shell assembly, an oil pipe and a water pipe do not need to be additionally arranged in the whole electrically-driven lubricating and cooling system, and the structure of the electrically-driven lubricating and cooling system is more compact.

The invention relates to a repeatedly detachable magnetic composite water lubricated bearing and a maintenance method thereof.The water lubricated bearing comprises a cylindrical bearing seat surrounding a ship stern shaft and a permanent magnet assembly detachably connected with the bearing seat, a cylindrical sliding bearing is arranged on the inner side of the bearing seat, a notch is formed in the outer side face of the sliding bearing, and the permanent magnet assembly is detachably connected with the bearing seat; the notch penetrates through the sliding bearing in the axis direction of the sliding bearing, a containing groove used for containing the permanent magnet assembly is defined between the notch and the inner side wall of the bearing seat, when the water lubrication bearing is arranged on the outer side of the ship tail shaft in a sleeving mode, the containing groove is located over the ship tail shaft, and the permanent magnet assembly is in sliding fit with the containing groove in the axis direction of the sliding bearing. According to the scheme, the permanent magnet is configured to be in a detachable form, and the permanent magnet can be conveniently maintained after being demagnetized, so that the maintenance cost of the water-lubricated bearing is reduced, and the load of the water-lubricated bearing can be reduced for a long time.

The utility model discloses an air cylinder facilitating lubrication of a piston rod, and relates to the technical field of air cylinders. The air cylinder comprises an air cylinder body. The air cylinder body is started to drive the extrusion assembly to move, lubricating oil in the extrusion assembly can be pushed in the retraction process of the extrusion assembly, and then when the lubricating oil in the extrusion assembly is pushed into the lubricating assembly, the lubricating oil makes contact with the outer surface of a piston rod in the air cylinder body; then the lubricating oil enters the backflow assembly, under the action of the backflow assembly, the lubricating oil in the backflow assembly can be slowly pushed to enter the lubricating assembly, the lubricating oil in the backflow assembly flows into the extrusion assembly, and in the flowing process, the lubricating oil can make full contact with a piston rod in the air cylinder body; and therefore, the air cylinder can be fully lubricated and is prevented from being abraded to influence the use of the air cylinder body.

The invention discloses an active lubrication brake cylinder for a railway wagon and the railway wagon, and relates to the field of railway wagon control systems.The active lubrication brake cylinder comprises a fixed gear ring arranged at the bottom of a spinning cylinder body, and a piston is arranged in the spinning cylinder body; the matching gear ring and the fixed gear ring are arranged in parallel, and the side, facing the fixed gear ring, of the matching gear ring is a convex tooth surface; the projection of the S-shaped spiral elastic pieces in the axial direction of the piston is in a circular arc shape, one ends of the S-shaped spiral elastic pieces are connected with the side, away from the fixed gear ring, of the matched gear ring, the S-shaped spiral elastic pieces are symmetrically arranged in the circumferential direction of the matched gear ring, and the other ends of the S-shaped spiral elastic pieces are connected with a base of the piston; the brake cylinder structure meets the modification of the existing brake cylinder, is simple in structure and low in modification cost, and also has good manufacturability and maintainability.

The utility model discloses a tension-compression-resistant long-service-life ball pin assembly for a heavy truck swing arm, and relates to the technical field of ball pin assemblies. The ball pin comprises a ball pin seat, a connecting plate is mounted at the top of the ball pin seat, a ball pin body is arranged in the ball pin seat, a dust cover is mounted at the top of the connecting plate, lubricating oil channels are symmetrically and obliquely formed in the ball pin seat, and connecting assemblies are symmetrically mounted on one side of the ball pin seat. According to the split type ball pin assembly, the ball pin base, the connecting plate, the ball pin body and the connecting assembly are arranged, the ball pin base and the connecting plate are connected and fixed through the connecting assembly, so that the ball pin base is in split type connection, and at the moment, the ball pin body is taken out and inserted into the ball pin base to complete assembly connection; the connection between the ball pin seat and the connecting plate can be quickly released by operating the connecting assembly, and then the ball pin body is taken out for replacement, so that the maintenance cost and potential safety hazards are greatly reduced.

The invention discloses a battery pack water connector automatic assembling machine and assembling method, the battery pack water connector automatic assembling machine comprises a conveying device, and the conveying device is sequentially provided with a base feeding station used for placing a base provided with a spring; the detection station is used for identifying the base and detecting whether a spring is mounted or not; a material distributing device, an oil brushing device and a moving device are arranged on the connector feeding station, the material distributing device is used for moving the two connectors to a first position and a second position correspondingly, and the oil brushing device is used for brushing oil on the clamped parts of the connectors and the base; the moving device is used for grabbing the connector to move to the oil brushing device for oil brushing and then moving and placing the connector on the base, and the rotating device is installed on the moving device. The pressing station is used for pressing the joint on the base; and the discharging station is used for discharging. Therefore, automatic assembly is achieved, the assembly precision and the assembly efficiency are improved, and meanwhile the problem that springs are prone to being omitted during manual assembly is solved.

The invention discloses a rotor assembly and a motor using the rotor assembly, and the rotor assembly comprises a rotor injection molding body which is internally provided with a hollow cavity penetrating through the two axial ends of the rotor injection molding body; an output shaft is integrally formed at one axial side end of the rotor injection molding body through injection molding; a shaft hole used for being connected with a rotor supporting shaft in a matched mode is formed between the output shaft and the hollow cavity in a penetrating mode. A magnet ring injection-molded on the outer peripheral side of the rotor injection-molded body; the fixing plug is suitable for being inserted into the hollow cavity from the end, away from the output shaft, of the rotor injection molding body. A through hole which is coaxially communicated and matched with the shaft hole is formed in the fixing plug; wherein the hollow cavity and / or the fixed plug are at least provided with a section of suspension interval which is not completely contacted with the outer wall surface of the rotor support shaft.

The invention provides sealing ring assembling equipment and an assembling system for assembling a pressure cap of an automobile water tank, which are characterized in that a sealing ring assembling mechanism comprises a sealing ring feeding unit for storing and outputting directionally arranged sealing rings; the sealing ring detection unit is used for carrying out visual detection on the sealing ring and judging whether the sealing ring has defects or not; the sealing ring oiling unit is used for oiling the sealing ring; the sealing ring assembling unit is used for sleeving the oil-coated sealing ring on the semi-finished product of the automobile water tank pressure cap; and the sealing ring carrying unit is used for carrying the sealing rings without defects from the sealing ring feeding unit to the sealing ring oiling unit and carrying the oiled sealing rings from the sealing ring oiling unit to the sealing ring assembling unit, and the grabbing mechanism is used for carrying the semi-finished automobile water tank pressure caps. In conclusion, the equipment and the system can achieve efficient and accurate assembly of the sealing ring.

The invention belongs to the technical field of metal plate wire drawing machines, and discloses a tension-adjustable aluminum gusset plate wire drawing machine which comprises a conveying plate, two supporting plates fixedly arranged on the two symmetric sides of the top of the conveying plate and mounting boxes fixedly mounted on the tops of the supporting plates, and moving grooves are formed in the two symmetric sides of the interior of the conveying plate; the wire drawing mechanism is located in the center of the top of the conveying plate, and the wire drawing mechanism is used for conducting wire drawing machining on the aluminum gusset plate; the lubricating mechanism is arranged in the mounting box and is used for lubricating the wire drawing mechanism; according to the aluminum gusset plate wire drawing machine, through cooperation of the wire drawing mechanism, the lubricating mechanism and other structures, uniform lubrication of the wire drawing roller is conveniently achieved, and the problems that in the wire drawing process of an existing aluminum gusset plate wire drawing machine through a guide roller, due to insufficient lubrication, uneven lubrication and low efficiency, the roller surface is scratched, and the guide roller is abraded are solved; therefore, the problem of tension imbalance detection distortion is solved.

The present invention discloses a grease injection system for a plug valve and a fracturing device. The grease injection system is used to inject grease into the plug valve. The grease injection system includes a power mechanism and a flow control valve group. The power mechanism includes a driving motor, a hydraulic pump, and a hydraulic oil tank. The driving motor is connected to the hydraulic pump. The hydraulic pump has an oil inlet and a plurality of oil outlets. The oil inlet is communicated with the hydraulic oil tank. The flow control valve group includes a valve body and a control valve. The valve body has a first oil passage port, a second oil passage port, and a third oil passage port. The first oil passage port is communicated with the second oil passage port. The second oil passage port and the third oil passage port are communicated with one or more of the oil outlets. A control valve is arranged between the first oil passage port and the third oil passage port to control the communication or disconnection between the first oil passage port and the third oil passage port. The above solution can solve the problem of great difficulty in injecting grease into the plug valve.

The invention discloses a device and a method for detecting wrong winding of a crane winding drum steel wire rope, and relates to the technical field of cranes. The device comprises a mounting platform, a control end is arranged at the bottom of the mounting platform, a sliding groove is formed in the top of the mounting platform, a moving motor is fixedly mounted in the sliding groove, and a threaded rod is rotationally connected into the sliding groove. When the lifting motor is started to drive the rotating shaft and the winding drum to rotate to wind or unwind the steel wire ropes to drive the lifting hook to ascend and descend, the winding motor can be started to drive the rotating rod and the unwinding roller to rotate, so that the lifting block and the lifting hook ascend and descend synchronously; when the lifting hook is lifted, a signal can be sent to the output end through cooperation of the extrusion plate, the compression spring, the sensor and other assemblies, an operator is reminded to stop lifting of the lifting hook and drive a lifted object to descend slowly, operation is conducted after the lifted object is stable, and safety is effectively improved.

The invention relates to the technical field of universal joint transmission, in particular to a universal joint transmission shaft assembly which comprises a cross shaft, four bearing sleeves are connected to the cross shaft, roller pins are arranged between the bearing sleeves and the cross shaft, oil seals are installed on one sides of the bearing sleeves and make contact with the surface of the cross shaft, and an oil injection pipeline is arranged in the cross shaft. According to the design, the driving assembly is arranged on the cross shaft, a worker can control the second circular ring to move through the driving assembly, and the second circular ring can pull the oil seal on the side where waste oil is completely discharged so that the oil seal can be better attached to the cross shaft; when oil is injected, waste oil can be discharged from the position between the oil seal on the side with the smaller gap and the cross shaft, so that the amount of fresh oil flowing out of the cross shaft during oil injection is reduced, waste of the fresh oil is avoided, the situation that the waste oil cannot be discharged from the oil seal on the side with the smaller gap is avoided, the lubricating effect is ensured, and the service life is prolonged.

The invention provides an automobile water tank pressure cap assembling system which is characterized by comprising rubber pad assembling equipment, a pressure cap assembling device, a pressure cap assembling device, a pressure cap assembling device and a pressure cap assembling device, and the rubber pad assembling equipment is used for assembling a rubber pad in a shell to obtain an automobile water tank pressure cap semi-finished product; the sealing ring assembling equipment is used for assembling a sealing ring on the semi-finished automobile water tank pressure cap; the automatic feeding equipment is used for providing rubber pads and shells for the rubber pad assembling equipment and providing sealing rings for the sealing ring assembling equipment; the finished product stacking equipment is used for stacking a plurality of finished automobile water tank pressure caps and placing the finished automobile water tank pressure caps at preset storage positions; the conveying equipment is used for enabling the semi-finished products of the automobile water tank pressure caps to circulate among the stations; and the general control equipment is used for controlling the rubber pad assembling equipment, the sealing ring assembling equipment, the automatic feeding equipment, the finished product stacking equipment and the conveying equipment, and assembling and storing of the automobile water tank pressure caps are achieved. In short, the system can realize highly automatic assembly of the pressure cap of the automobile water tank.

The invention provides an impact rotary drilling hydraulic control system of a dinting machine, which belongs to the technical field of hydraulic control systems and comprises a variable pump, a pilot oil source control valve group, a proportional multi-way valve, a shuttle valve I, a one-way pressure reducing valve, a shuttle valve II, a drilling machine pilot handle group, an impact rotary drilling machine, a bidirectional hydraulic lock and a drilling machine feeding oil cylinder. According to the hydraulic control system for percussive rotary drilling of the dinting machine, the percussive rotary drilling machine can perform stepless speed regulation between two speeds, high-frequency percussive or low-frequency percussive operation can be flexibly used according to rock stratum and geological working conditions, the application range of equipment is greatly widened, and the hydraulic control system can be used for rock stratums with high hardness, weathered rock stratums and hard and brittle geology. And during low-frequency impact operation, one-key linkage operation can be realized, namely, the functions of feeding, rotating and impacting of the drilling machine can be completed by operating the impact pilot handle.

A transport system for containers in the beverage industry, with a first container conveyor including a conveyor belt for conveying the containers, and a lubrication system including an applicator for applying a lubricant to the conveyor belt of the first container conveyor, wherein the transport system comprises a second container conveyor with a further conveyor belt for conveying the containers, and the lubrication system includes a mobile robot which has the applicator arranged thereon and a floor-supported undercarriage, for applying the lubricant in an automated selectively to the conveyor belt of the first container transporter or the conveyor belt of the second container conveyor.

The invention relates to the technical field of cable processing, in particular to wire and cable skin stripping and recycling equipment which comprises a traction frame, a fixing plate is fixed to the middle of the interior of the traction frame, a first hole groove is formed in the fixing plate, a stripping and recycling mechanism is installed in the first hole groove, and two second hole grooves are symmetrically formed in the two sides of the traction frame. Four fixing seats are fixed in the second hole groove at equal intervals, and first springs are fixed in the fixing seats; the stripping and recycling mechanism is used for cutting and recycling the cable skin, the cutting knife is used for cutting the cable skin, and meanwhile, lubricating oil is smeared on the surface of the cutting knife, so that overall smooth cutting is guaranteed, and the situation that the cutting knife is adhered to the cable skin due to overheating caused by excessive friction is avoided; and by means of the sliding connection effect between the movable block and the L-shaped sliding groove, the effects of stability during cutting and rapid replacement after cutting are achieved, and therefore the overall stripping and recycling efficiency is improved.

The utility model provides an anti-wear protective sleeve for a cable in a wind driven generator tower, which relates to the field of cable anti-wear and comprises a limiting outer sheath, a limiting inner ring block and a wind driven generator cable, and the inner side of the limiting outer sheath is slidably connected with the wind driven generator cable through the limiting inner ring block. The inner side face of the limiting outer sheath is attached to the outer arc face of the limiting inner ring block through an arc-shaped sliding groove, the groove face of the arc-shaped sliding groove is filled with a solid oil block, a sealing oil cover is pressed on the outer surface of the limiting outer sheath, the inner side face of the sealing oil cover is connected with an arc-shaped pressing plate through a supporting spring, and the solid oil block is tightly attached to the side face of the arc-shaped pressing plate. According to the utility model, the problem that the anti-wear service life is short due to the fact that the convex rotating beads of the protective sleeve are easy to damage after being impacted and collided in the prior art is solved.

The utility model discloses a stainless steel pipe inner wall polishing device, which belongs to the technical field of stainless steel pipe inner wall polishing devices, and adopts the technical scheme that the stainless steel pipe inner wall polishing device comprises a machining table, a sliding groove is formed in the top of the machining table, supporting plates are fixedly connected to the two sides of the machining table, and polishing assemblies are arranged at the tops of the supporting plates; the polishing assembly comprises a placing plate bolted to the top of the supporting plate, a clamping assembly is arranged on the front side of the machining table, and the problems that an existing stainless steel pipe inner wall polishing device cannot stably clamp a stainless steel pipe conveniently, so that the steel pipe shakes or displaces in the polishing process, the polishing precision and quality are affected, and the polishing efficiency is improved can be solved. And lubricating oil is not convenient to add in the process of polishing the long stainless steel pipe, so that the friction coefficient between the polishing head and the inner wall of the stainless steel pipe is increased, the inner wall of the stainless steel pipe is locally overheated to deform, and the size precision and the surface smoothness of subsequent machining are influenced.

The main shaft mechanism comprises a main shaft body, a belt pulley is arranged at one end of the main shaft body, a core long hole is formed in the middle of the main shaft body in a penetrating mode, a connecting piece is detachably arranged at the end, close to the belt pulley, of the main shaft body, and the connecting piece is communicated with the core long hole. And the oil injection nozzle is arranged on the connecting piece. According to the scheme, the main shaft mechanism of the air compressor is improved, the oil injection channel structure is improved, and the oil injection nozzle of the main shaft mechanism of the air compressor is designed outside the whole air compressor, so that the oil injection operation is very convenient, and a guarantee is provided for subsequent machine head maintenance work.

The utility model discloses a running belt supporting plate applied to a running machine, which comprises a base plate and a wear-resistant layer, the wear-resistant layer is combined and fixedly connected to the upper end face of the base plate, the upper end face of the wear-resistant layer is provided with a plurality of grooves, and each groove is filled with a waxy lubricating material. The waxy lubricating material lubricates a friction pair formed between the inner ring surface of a running belt of the treadmill and the upper end surface of the wear-resistant layer in a solid or liquid manner; furthermore, the waxy lubricating material filled in each groove protrudes out of the groove, and all the waxy lubricating materials protruding out of the groove are connected with one another to form a waxy lubricating layer covering the upper end face of the wear-resistant layer. The lubricating effect between the running belt and the running belt supporting plate is effectively improved, friction resistance is reduced, and the service life of the running machine is prolonged; therefore, the running belt can smoothly move for a long time in a fast and slow state, and a better experience effect of a sporter is ensured.