46results about How to "Fully lubricated" patented technology

The utility model discloses a kind of planetary reducer self-lubricating devices, belong to planetary reducer lubrication field, including base, the top of base is fixedly connected with motor main body, the output shaft of motor main body is fixedly connected with sun gear, the outside of sun gear is engaged with three planetary gears, the outside of planetary gear is equipped with the shell engaged with it, the top of shell is equipped with oil supply piece, the top of oil supply piece is threadedly connected with top cover, the top of top cover is equipped with air valve;The planetary reducer self-lubricating device, the cooperation of the walking track of planetary gear and the matching of oil supply piece upper end of resistance is used to control the discharge of lubricating oil, greatly simplify the device structure, reduce the overall cost of planetary reducer, device overall structure is relatively simple, without complex electronic components and sensing device, reduce the probability of failure occurrence, improve the reliability and stability of device, reduce maintenance cost.

The utility model discloses a planetary gear coaxial type speed reducer which comprises a shell and a planet carrier differential mechanism assembly. A cavity is formed in the shell, and the planet carrier differential assembly is arranged in the cavity. The planet carrier differential mechanism assembly comprises a planet carrier differential shell, a planet gear train and a differential mechanism, the planet carrier differential shell is rotationally supported on the inner wall of the shell, the planet gear train and the differential mechanism are integrally arranged in the planet carrier differential shell, and after external power is input into the planet gear train, the planet carrier differential shell is driven to rotate; the differential mechanism outputs power to achieve the wheel end rotating speed difference, and the input axis of the planetary gear train, the rotating axis of the planet carrier differential shell and the output axis of the differential mechanism are coaxially arranged. The integrated coaxial design is adopted in the speed reducer, so that the speed reducer is smaller in overall size, carrying arrangement on a whole vehicle is facilitated, the weight is lighter, the efficiency is higher, and lubrication is sufficient during working.

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.

The utility model relates to mechanical engineering technical field discloses a kind of transmission screw of double thread structure, including stud, the outside of stud is fixedly connected with two inner rings, the outside of inner ring is fixedly connected with thread tooth, the surface of inner ring is equipped with lubricating groove, the outside of thread tooth is movably connected with multiple ball bearings, multiple ball bearings are evenly distributed in the outer surface of thread tooth in equidistant interval mode, and extend along the helical path of thread tooth, ball bearing is steel ball bearing, and surface is polished, the radial dimension of inner ring is less than thread tooth, and the corresponding ladder groove of adaptation bolt is equipped with, axial limit is formed when the two are clamped, and the inner wall of lubricating groove is equipped with flow guide line route.In the utility model, rely on the bidirectional ladder type clamping structure of double inner ring and bolt double internal thread, can form double axial limit effect, greatly enhance the connection firmness of screw and bolt, effectively avoid the front and rear sway or deviation caused by vibration, impact during transmission.

The utility model discloses a multi-piece overlapped type lubricating pinion which comprises a plurality of gear pieces, and the gear pieces are overlapped to form a gear. When the two opposite gear pieces are attached and stacked, the two oil grooves form a closed oil channel, each gear tooth corresponds to two oil channels, and the two oil channels penetrate through different tooth surfaces of the gear tooth respectively. The gear sheet is provided with bulges at oil outlets of the oil channels; the outer wall of the shaft tube is in smooth fit and rotary fit with the circular through hole of the gear sheet; an oil cavity and an oil hole penetrating through the oil cavity are formed in the center of the shaft tube along the central axis, and when the shaft tube is sleeved with the gear piece, the oil hole corresponds to the oil channel oil inlet in position. The pinion composed of the gear pieces is not directly attached to the gear to be lubricated through the tooth surface, lubricating grease flows out through the protrusions and then is guided to flow towards the two sides of the gear to be lubricated in the thickness direction, and the lubricating gear is fully covered. When the difference is small, the gear gaskets are thin, and the thickness specification can be finely adjusted by adjusting the number of the gear gaskets.

The utility model provides a counterbalance, a motor rotor assembly and a compressor, the counterbalance comprises a counterbalance main body, the counterbalance main body extends along the circumferential direction of a motor rotor, the counterbalance main body is provided with a windward end and a leeward end, and at least the windward end is provided with a suspended flow guide body extending along the circumferential direction of the motor rotor. A suspended overflowing space is formed between the side, close to the first end face, of the suspended flow guiding body and the first end face, and the suspended flow guiding body is provided with a flow guiding radial outer side face and a flow guiding radial inner side face. The flow guide radial outer side face gradually gets close to the radial inner side of the motor rotor and / or the flow guide radial inner side face gradually gets close to the radial outer side of the motor rotor so that the cross section of the suspended flow guide body can become smaller and smaller in the circumferential direction away from the balance block body. According to the utility model, the internal flow field of the compressor is effectively prevented from being disturbed due to the pumping effect, the operation noise of the compressor is reduced, and meanwhile, the oil spitting rate and oil spitting quantity of exhaust refrigerant of the compressor are reduced.

The utility model relates to the field of hot rolling mills, and discloses a bearing for a hot rolling temper mill, which comprises a retainer and an inner ring, the inner wall of the retainer is provided with an oil storage tank, the upper side and the lower side of the retainer are fixedly provided with sealing plates through bolts, the inner ends of the two sealing plates are provided with sliding chutes, the upper end of the retainer is provided with a plurality of oil inlets, and the oil inlets are communicated with the inner ring. A plurality of oil seepage holes are formed in the inner end of the retainer, limiting plates are fixedly arranged on the upper side and the lower side of the inner ring through bolts, sliding blocks are fixedly arranged at the outer ends of the two limiting plates, and a plurality of mounting holes are formed in the inner end of the inner ring. According to the utility model, after lubricating oil is added into the oil inlet, the lubricating oil in the oil storage tank can continuously seep out to ensure that the roller is fully lubricated, so that the working efficiency is improved, the maintenance frequency is reduced, the lubricating oil can be effectively prevented from leaking due to the sealing effect of the sealing plate on the oil inlet, and the service life of the device is prolonged.

This invention discloses a novel hybrid power system, belonging to the field of engine technology, applicable to horizontally opposed engines. By optimizing the shapes of the cylinder head, intake manifold, and piston, airflow is guided to form a concentrated and powerful tumble flow. During the compression stroke, this creates a squeezing impact tumble flow, breaking it up before ignition and combustion, thus improving combustion efficiency. The crankcase has a skeleton structure, simplifying the manufacturing process and eliminating the need for mold casting. All components can be machined. The lubricating oil passages within the crankcase are formed by splicing oil passages from various components; short sections of the oil passages are easy to machine, and blockages are easily disassembled and cleared. A rocker arm simultaneously drives two intake valves, with equal distances from both valves to the rocker arm, allowing for simultaneous entry and exit of both valves. This provides good coordination, reduces wear and noise, and ensures good sealing.

The utility model relates to the technical field of roller screw rods, in particular to a compact roller screw rod of a multi-degree-of-freedom robot joint, which comprises a driving screw rod and a transmission seat in threaded connection with the outer side of the driving screw rod, and a lubricating oil filling hole communicated with the inner side of the transmission seat is arranged on one side of the transmission seat. According to the lubricating oil filling device, through the arrangement of the lubricating oil filling hole, the filling pipe, the threaded groove, the threaded block, the air inlet assembly, the piston and the compression spring, when the device is used, the threaded block is screwed out, after a proper amount of lubricating oil is added into the inner side of the filling pipe, the threaded block is screwed out, and then the lubricating oil is filled into the filling pipe. The mounting frame is pulled, the threaded block is screwed into the inner side of the threaded groove, then the mounting frame is loosened, at the moment, the compression spring continuously resets to press the lubricating oil into the inner side of the transmission seat, through the design, the space between the pin rollers in the transmission seat can be filled with the lubricating oil, lubricating is more sufficient, and dust can be prevented from entering the transmission seat.

The invention relates to the technical field of hub units, in particular to a high-integration large-load driving wheel automobile hub unit and a machining method thereof.The high-integration large-load driving wheel automobile hub unit comprises an inner ring piece and is characterized in that an outer ring piece connected with the inner ring piece in a sleeved mode is arranged at one end of the inner ring piece, a center flange plate is connected to one side of the inner ring piece, and a gear ring is installed on the center flange plate; one end of the gear ring is connected with a sensor assembly, a cavity is formed between the interior of the inner ring piece and the interior of the outer ring piece, a bearing assembly is arranged in the cavity, an upper sealing ring assembly is arranged on one side of the bearing assembly, and a lubricating assembly is installed on one side of the inner ring piece. Through cooperation of the lubricating assembly and the oil pumping assembly, lubricating oil of the replaceable oil storage soft bag can enter the space among the inner ring piece, the center flange plate and the outer ring piece through the oil injection pipe, the inner ring piece, the center flange plate and the outer ring piece are fully lubricated, and it is guaranteed that the hub unit can stably operate under the long-time large load.

This invention relates to the field of multi-split air conditioning system technology, specifically to a disturbance control method for the outer loop electronic expansion valve of an air conditioning system. The problem this invention addresses is how to actively eliminate oil and refrigerant blockage and reduce exhaust temperature during defrosting or oil return processes through forced disturbance control of the outer loop electronic expansion valve. To solve this problem, this invention provides a control method comprising: acquiring the operating status parameters of the air conditioning system; determining whether the air conditioning system has triggered a disturbance program based on the status parameters; correcting the reference setting based on the exhaust temperature, compressor return superheat, and oil separator return oil temperature during the execution of the disturbance mode; determining whether to exit the disturbance program based on the exhaust temperature and the execution duration of the disturbance program during defrosting and oil return modes; and automatically exiting the disturbance program when the air conditioning system exits the defrosting or oil return mode.

This utility model belongs to the field of lubrication technology for screw presses, specifically disclosing a lubrication device for the transmission screw pair of a screw press, including: a main oil inlet pipe, a distributor, a branch oil inlet pipe, a slide return oil pipe, and a gland return oil pipe; one end of the main oil inlet pipe is connected to an oil pump station, and the other end is connected to the oil inlet on the distributor; the distributor is detachably mounted on one side of the slide and is also provided with multiple oil outlets; one end of the branch oil inlet pipe is connected to the oil outlet of the distributor, and the other end is connected to a first oil inlet passage provided on the slide; the main nut is provided with a second oil inlet passage connected to the first oil inlet passage; one end of the slide return oil pipe is connected to the first oil return passage provided on the side wall of the slide cavity; one end of the gland return oil pipe is connected to the second oil return passage provided on the gland; the dual oil return path design achieves efficient, continuous, and cyclical lubrication of the friction pair between the main screw and the main nut, significantly improving the reliability of equipment operation.

The utility model provides a full-automatic double-piece connection box pasting machine, which relates to the technical field of paper box processing and comprises a workbench, a first support frame is fixedly mounted at one end of the top of the workbench, a lubricating component is arranged at the top of the first support frame, and a rotating component is arranged on one side of the lubricating component. And telescopic rods are fixedly installed on the two sides of the top of the workbench, and pressing plates are fixedly installed at the bottoms of the telescopic rods. According to the device, on one hand, glue residues on the surface of the device are effectively cleaned through the cleaning plate, the glue is prevented from dripping on a workbench, and the quality of paper boxes is prevented from being affected. Meanwhile, the cleaning plate is cleaned in time through the cleaning assembly, and glue residues are avoided; and on the other hand, by arranging the lubricating assembly, sufficient lubrication is continuously provided for the rotating assembly, friction is reduced, and the phenomena of jamming and stagnation in the long-term use process are prevented.

The utility model relates to rolling mill technical field discloses a kind of rolling mill positioning pin, including, positioning pin main body, the positioning pin main body is cylindrical structure, one end of the positioning pin main body is machined with two mutually parallel grooves to form three parallel positioning teeth, at least two oil holes are vertically provided in the other end of the positioning pin main body and respectively penetrate two The groove;Pin cover, the pin cover includes cylindrical main part, one side of the main part is provided with the circular groove matching with the diameter of the positioning pin main body, and the main part is sleeved on the positioning pin main body away from the groove one end by the circular groove. The utility model increases the contact area of positioning pin and copper nut, improves the body strength of positioning pin. In addition, the design of oil eye makes the lubricating grease more effectively penetrate to rolling mill bearing seat and pressure ball pad bottom, significantly reduces the wear of bearing seat and pressure ball pad, improves the overall performance and service life of rolling mill.

This invention relates to the field of shaft lubrication technology, and discloses a shaft structure for a self-lubricating turbocharger ball bearing. The turbocharger includes a bearing housing, a compressor volute, an oil seal cap, a turbine housing, a rotor shaft, an impeller, and a backplate assembly. The backplate assembly includes a backplate that mates with the compressor volute. The turbine housing is connected to the compressor volute. The air inlet of the compressor volute is embedded in the outer periphery of the bearing housing. An oil reservoir is formed between the oil seal cap, the bearing housing, and the compressor volute, and the pressure within the oil reservoir is balanced with the ambient pressure. The shaft structure includes a sleeve portion located at the central shaft of the bearing housing. The rotor shaft and impeller are assembled and inserted into the sleeve portion, forming a bearing housing cavity between the rotor shaft and the inner wall of the sleeve portion. A bearing assembly is provided on the shaft section of the rotor shaft inserted into the sleeve portion. A channel for lubricating oil delivery is provided between the bearing housing cavity and the oil reservoir. By setting up the oil reservoir and opening the channel, the slight negative pressure environment of the bearing housing cavity ensures that lubricating oil is automatically delivered along the channel to lubricate the shaft structure.

This utility model relates to the field of double-ended stud bolt technology and discloses a wear-resistant double-ended stud bolt, including a double-ended stud bolt body. The double-ended stud bolt body includes a nut integrally formed along its axial direction. A through groove is formed along the axial direction of the double-ended stud bolt body. Rubber plugs are interference-fitted to both ends of the through groove. A set of oil injection grooves is formed on the outer circumferential surface of both ends of the double-ended stud bolt body. This wear-resistant double-ended stud bolt is equipped with an oil injection mechanism that can apply pressure to the lubricating oil in the compression groove when the rotating block rotates slightly. This pushes the lubricating oil in the through groove to be evenly distributed through multiple oil injection grooves and flow to the meshing point between the double-ended stud bolt body and the external connecting parts. This ensures that all parts at the meshing point are adequately lubricated, thereby effectively reducing the friction coefficient between the double-ended stud bolt body and the external connecting parts, reducing wear, and improving the performance and service life of the double-ended stud bolt body.

This utility model discloses a raceway temperature-controlled slewing bearing and a lubrication fixture, relating to the field of temperature-controlled slewing bearing technology. It includes an outer ring and an inner ring, with rolling elements installed between them. A countersunk hole is formed in the outer ring, and a temperature sensor is installed within the countersunk hole, with the sensor's detection end facing the rolling element. A 2mm metal layer is provided between the sensor's detection end and the rolling element. A dust cover is installed on the side of the temperature sensor facing away from the rolling element; the dust cover is detachably mounted on the outer ring and restricts the temperature sensor within the countersunk hole. A sealing strip assembly is also installed between the outer and inner rings, symmetrically distributed on the upper and lower sides of the rolling element. This invention addresses the technical problem of uneven grease distribution within the raceway when the slewing bearing operates on a slope, causing a rapid temperature rise in unlubricated sections of the raceway, leading to carbonization of the separator blocks, raceway corrosion, and other damage to the raceway.

This utility model relates to the field of crane technology and discloses an explosion-proof European-style wire rope electric hoist, including a base, a winding reel rotatably connected inside the base, and a wire rope wound on the winding reel. It also includes: a guide plate slidably connected to the base along the length of the winding reel; a control component connected to the guide plate inside the base; and a lubrication wheel rotatably connected to the guide plate. One end of the wire rope extends out of the winding reel and passes through the guide plate. A limit groove is formed in the center of the lubrication wheel, and the end of the wire rope extending out of the winding reel slides into the limit groove. A lubrication unit is provided on one side of the guide plate, connected to the lubrication wheel, to apply lubricating oil to the surface of the lubrication wheel. This improves the lubrication and protection effect on the wire rope and reduces the friction between the wire rope and the guide plate.

This invention provides a reciprocating piston compressor and a refrigeration device. The reciprocating piston compressor includes: a cylinder seat with a cylinder bore; a piston located within the cylinder bore and sliding reciprocally within the cylinder bore under the drive of a crankshaft; an annular groove is provided around the outer circumference of the cylinder bore within the cylinder seat; and an oil-pressing structure is constructed on the region of the cylinder seat adjacent to the cylinder bore. The oil-pressing structure can deliver a portion of the lubricating oil splashed during crankshaft rotation into the annular groove. This invention, through the oil-pressing structure, delivers a portion of the lubricating oil splashed during crankshaft rotation into the annular groove surrounding the outer circumferential wall of the cylinder bore. The lubricating oil entering the annular groove can reliably dissipate heat and cool the bore wall, thereby effectively reducing the temperature of the piston's outer wall.

The utility model discloses a kind of ultra-high temperature resistant metal bellows double-end mechanical seal structure, it is related to mechanical seal technical field, including main shaft and the mechanical seal assembly of being installed on main shaft, the quenching cavity for filling quenching liquid and the isolation cavity for filling isolation liquid are further had in mechanical seal assembly, isolation cavity is located outside quenching cavity, and the medium side of mechanical seal assembly is further equipped with the cooling assembly for filling cooling liquid, and cooling assembly is sleeved on main shaft. In the utility model, through the cooperation of quenching cavity, isolation cavity and cooling assembly, the inside and outside of its mechanical seal structure can be fully cooled, lubricated and reduced conduction heat.

Turbocharger device based on high bearing high-speed rotor shaft structure relates to the technical field of internal combustion engine supercharging device, including bearing body, rotor shaft, floating bearing, thrust sleeve, thrust bearing and shaft seal; floating bearing is arranged in bearing body, rotor shaft is rotatably sleeved on floating bearing, shaft seal and thrust sleeve are axially and parallelly sleeved on rotor shaft, and thrust bearing is located between shaft seal and thrust sleeve; Two inner ring support surfaces are symmetrically arranged in floating bearing, each inner ring support surface includes inner ring support surface one and inner ring support surface two which are arranged axially and in parallel, and an included angle is arranged between inner ring support surface one and inner ring support surface two.The invention is used to solve the problem that in the traditional technology, when the rotor is deflected, usually only 1-2 effective oil wedge surface bearing areas can be formed, the remaining oil wedge surface bearing areas cannot maintain enough pressure support due to the increase of oil film gap, resulting in the decrease of overall bearing capacity.

This utility model discloses a marine lifeboat lowering and launching device with remote oil delivery lubrication, belonging to the field of marine equipment technology. The key technical points are: it includes a support base with an inclined slide corresponding to the lifeboat; a boom rotatably connected to the support base; a winch at the lower end of the boom; a hydraulic cylinder rotatably mounted on the support base; the output end of the hydraulic cylinder rotatably connected to the middle of the boom; a movably mounted cable on the boom, connected to the winch; a crossbeam device for suspending the lifeboat connected to the end of the cable; several rollers rotatably mounted on the boom; the cable sequentially passes over these rollers; two guide wheels rotatably mounted on the boom; and an oil delivery assembly on the boom for delivering lubricating oil to the connection points of the rollers and the two guide wheels. This lowering and launching device significantly improves the efficiency of lubrication operations by delivering lubricating oil to these connection points through the oil delivery assembly.

The utility model discloses a transmission assembly with novel oil way structure, transmission assembly includes: first casing, install the hydraulic torque converter in first casing, for connecting the power input from engine, the first casing is opened with first oil inlet and first oil outlet with first oil inlet intercommunication of hydraulic torque converter, second casing is connected with first casing, install transmission gear group in second casing, transmission gear group is connected with the drive of hydraulic torque converter, transmission gear group is away from the one end of hydraulic torque converter and is the power output end of transmission assembly, second casing has the open type oil storage cavity below transmission gear group, still open with second oil inlet with first oil inlet intercommunication in second casing.

The utility model discloses a power tool turret cooling structure which comprises an air inlet pipe and an oil inlet pipe which penetrate through a tool turret body, and the air inlet pipe and the oil inlet pipe penetrate through the tool turret body and then extend into a bevel gear transmission cavity. A waste gas exhaust pipe is arranged in the middle of the bevel gear transmission cavity, and the gas inlet pipe and the oil inlet pipe are arranged on the two sides of the waste gas exhaust pipe in the bevel gear transmission cavity respectively. The waste gas exhaust pipe abuts against a cavity of the coupler in the tool turret body, an external waste gas exhaust pipe penetrates through the cavity of the coupler and extends out of a shell of the tool turret body, and the waste gas exhaust pipe in the tool turret body is communicated with the external waste gas exhaust pipe. The air inlet pipe is communicated with an external air inlet pipe on the shell of the tool turret body, and the oil inlet pipe is communicated with an external oil inlet pipe on the shell of the tool turret body. The external air inlet pipe is connected with an air blowing pipe on a machine tool, and the inlet end of the external air inlet pipe is connected with an oil inlet pump. The utility model has strong practicability.

The utility model discloses an oil-containing wear-resistant bearing with stepped oil groove distribution, and particularly relates to the technical field of bearings, the oil-containing wear-resistant bearing comprises a small collar, one end of the small collar is provided with a stepped end lubricating assembly, the stepped end lubricating assembly comprises a middle collar and one end fixedly mounted on the small collar, one end of the middle collar is fixedly connected with a small end ring, and the other end of the middle collar is fixedly connected with the small end ring. The outer wall of the small end ring is fixedly connected with a middle shaft ring; and the large end ring is fixedly connected to one end part of the middle shaft ring. The stepped shaft end lubricating assembly is adopted, a stepped shaft can be inserted into the large shaft ring, a large amount of oil is stored in a plurality of hole bodies in the small end ring, the stored oil flows out through a plurality of oil holes in the large end ring, the small end ring and the large end ring can fully lubricate the two ends of the stepped shaft, and the service life of the stepped shaft is prolonged. And meanwhile, multi-point-position distributed uniform lubrication can be achieved, double distributed lubrication is achieved at the ends of the steps, and the lubrication effect is better.

The utility model discloses a slitting cutter blade moistening frame which comprises a fixed seat frame, a movable supporting frame connected to the inner side of the fixed seat frame in a sliding mode, a lubricating mechanism arranged in the movable supporting frame, an air cylinder fixedly connected to the middle of the fixed seat frame, a connecting block arranged at one end of the back face of the lubricating mechanism, and an adjusting mechanism arranged at the lower end of the inner side of the movable supporting frame. Oil is pumped from the oil box through the oil pump, the oil quantity of the oil box can be observed through the transparent window, oil is added, lubricating oil is conveyed to the curved pipe through the oil pipe and sprayed to the blade after being atomized by the micro atomization spray head, the contact area is increased, lubrication is more uniform and effective, and friction between the blade and an aluminum strip is reduced; the sliding base slides to enable the spray head to move left and right and then to be fixed, the optimal lubricating position can be kept along with blade position adjustment, the air cylinder pushes the movable supporting frame to move up and down, up-down position adjustment of the blade lubricating frame is achieved, and the flexible adjustment mode can accurately adapt to shapes, sizes and installation positions of various blades.

The utility model provides an oil lubrication structure which can fully lubricate a bearing after a vehicle is just started. An oil lubrication structure is provided with: a bearing that rotatably supports a rotor shaft; an oil pump that circulates oil; a lubrication pipe for supplying the oil from the oil pump to the bearing; and an oil storage part which is located between the lubrication pipe and the bearing and stores the oil.

The utility model discloses an oil liquid guiding and collecting device relates to sealed technical field, including support spare, support spare is equipped with the dustproof seal of resistance to the outer circumferential wall of main shaft, is equipped with the first oil return hole in support spare, and the end cover is equipped with the second oil return hole, and the passage for intercommunication of both is equipped between the first oil return hole and the second oil return hole, and the oil liquid of leakage can return to the bearing from the first oil return hole, the passage and the second oil return hole, thereby avoiding the oil liquid and reducing because of leakage, ensure that the bearing gets fully lubricated, thereby promote the operation life of bearing. First oil return hole is equipped with the first screen, and the second oil return hole is equipped with the second screen, can filter the dust or impurity of outside entry, avoid the impurity and enter the bearing, reduce the wear and tear of bearing. The one end of passage is away from the end cover and is screwed with strong magnetic bolt, can adsorb metal scrap, avoid bearing damage, and convenient artificial cleaning.

The utility model discloses a centrifugal spraying injection gun for lubricating grease, and aims to overcome the defect that the uniformity of lubrication is difficult to maintain in the conventional lubrication mode. The hollow shaft is rotationally connected with the hollow shaft motor, the tube shell is arranged outside the hollow shaft motor, the abutting plate is detachably connected with the top end face of the hollow shaft, a plurality of spraying holes are formed in the position, close to the abutting plate, of the side wall of the hollow shaft, and the bottom end face of the hollow shaft is rotationally connected with a flexible tube for supplying lubricating grease. Uniform spraying lubricating grease is provided in a centrifugal rotation mode, and sufficient lubrication of workpieces is guaranteed on the premise that the using amount of the lubricating grease is controlled.

The utility model discloses a kind of compressor refrigeration system quick oil return device and refrigeration system, including compressor, gas-liquid separation tank, still including oil temporary storage tank;The liquid outlet of gas-liquid separation tank is communicated with oil temporary storage tank by liquid outlet pipeline;Oil temporary storage tank is communicated with the suction port of compressor by oil return pipeline;Oil temporary storage tank and compressor outlet are communicated by power line;First control assembly is set on the power line, second control assembly is set on the liquid outlet pipeline.The utility model increases the process of temporary storage tank flow, power line by in compressor refrigeration system, realize the quick backflow of lubricating oil in pipeline, avoid screw compressor long-term low oil level operation, ensure that compressor normal operation.