190 results about "Face seal" patented technology

The utility model belongs to the technical field of thermal management, and discloses a runner plate structure, a cooling system and an automobile, the runner plate structure comprises a runner plate assembly, the runner plate assembly is an injection molding element, the runner plate assembly comprises a runner plate body and a water valve body, the runner plate body is provided with a first connecting port, and the water valve body is provided with a second connecting port. The water valve body is provided with a second connecting port, and the second connecting port is communicated with the first connecting port. The water valve body and the runner plate body are integrally formed in an injection molding mode, the connection sealing performance of the water valve body and the runner plate body is improved, leakage of cooling liquid in the circulation process between the water valve body and the runner plate body is avoided, the connection between the water valve body and the runner plate body does not need a radial sealing ring, an end face sealing ring and a bolt any more, and therefore the sealing performance of the water valve body and the runner plate body is improved. Therefore, the problem of leakage of the cooling liquid caused by mismatching of the sizes of the end face sealing ring, the radial sealing ring and the bolt is avoided.

The utility model discloses a quick connecting structure for metal pipe fittings, which relates to the technical field of metal pipe fitting connecting equipment and comprises a first connecting pipe and a second connecting pipe. The quick connecting mechanism is arranged on the outer side of the first connecting pipe and the outer side of the second connecting pipe; according to the utility model, one-key quick connection is realized through the insertion matching of the connecting insertion plate and the connecting insertion groove and the mechanical locking design that the round head jacking column is automatically clamped into the positioning hole under the driving of the spring, and the threaded matching of the locking ring and the second connecting sleeve further limits the displacement of the round head jacking column, so that the mounting efficiency and reliability are obviously improved; in a connection state, the two groups of sealing rubber plugs are separated from the fixed annular plate under the action of the extrusion ejection block, so that the pipeline is communicated, meanwhile, the connection sealing ring is pressed to deform to form end face sealing, double sealing of an internal channel and a connection interface is achieved, the sealing rubber plugs automatically reset to block medium flow during separation, and the leakage risk after disassembly is effectively prevented.

The utility model belongs to tank body plugging technical field discloses a kind of tank body end face plugging device, including fixed subassembly, sealing assembly and locking assembly, fixed subassembly includes fixed band and at least two positioning locks, two positioning locks are respectively abutted in the opposite sides of the radial direction of the cylindrical outer lateral wall of tank body, fixed band is encircled in the circumferential of the cylindrical outer lateral wall of tank body and passes through positioning lock;Sealing assembly includes sealing band and flexible sealing block, sealing band is respectively connected with two positioning locks, flexible sealing block is connected on sealing band, and the side surface of flexible sealing block covers the leakage point on the end face of tank body;Locking assembly is provided with two groups, and fixed band and sealing band are respectively connected with a group of locking assembly, so that locking assembly is tensioned to make positioning lock abut tightly cylindrical outer lateral wall, and locking assembly is tensioned to make sealing band drive flexible sealing block plugging leakage point.The device structure is simple, easy to operate, and can effectively realize the plugging of tank body end face.

The application discloses a pipe end face sealing equipment, which comprises a sealing unit, and the sealing unit comprises a pipe end face cutting device, a pipe end face forming device and a visual detection device. The pipe end face cutting device is used for cutting the pipe end face. The pipe end face forming device is used for heating and forming the pipe end face after being cut by the pipe end face cutting device, so as to seal the pipe end face. The visual detection device is used for acquiring image information of the pipe end face after being cut by the pipe end face cutting device and / or acquiring image information of the pipe end face after being heated and formed by the pipe end face forming device. The pipe end face sealing equipment can be seamlessly connected with a preceding cutting machine, can automatically convey the pipe for processing, can improve the processing efficiency, and can acquire the pipe end face image information through the visual detection device, so that whether the forming is successful can be known, and remedial measures can be taken, and the shaping effect is improved.

The invention discloses a high-speed end face sealing testing device and a testing method thereof. The high-speed end face sealing testing device comprises a machine base, a driving system installed on the machine base, a load simulation system, a medium system, a multi-physics field coupling system, a high-precision measuring system and a data collecting and processing system. Meanwhile, the tested sealing element is installed in the testing cavity, a moving ring part of the tested sealing element is connected with an output shaft of the driving system, and a static ring part of the tested sealing element is installed on an end cover of the testing cavity. By integrating the driving system, the load simulation system, the medium system and the multi-physical-field coupling system, extreme working conditions from a steady state to a transient state, from a normal temperature to cryogenic / high temperature and from a single load to multi-field coupling can be simulated, and full-spectrum working conditions of high-end equipment such as an aero-engine and the like are covered.

The utility model relates to the technical field of pharmaceutical equipment, and discloses a sealing, scraping and guiding combined device and a dry type granulator, the sealing, scraping and guiding combined device comprises: an end face sealing device, which encloses a pre-pressing space, a main compaction space and a discharge space with the outer peripheral surfaces of a first compression roller and a second compression roller; the scraping and guiding device comprises a first scraper and a second scraper, the first scraper and the second scraper are suitable for shoveling, scraping and removing materials adhered to the peripheral surfaces of the first compression roller and the second compression roller, a guiding space is formed between the first scraper and the second scraper, and an outlet of the guiding space is communicated with an inlet of the granulating cavity. According to the sealing, scraping and guiding combined device provided by the utility model, the first scraper and the second scraper are arranged to scrape and remove materials adhered to the peripheral surface of the compression roller, and the materials are guided to the granulating cavity through the guiding space between the first scraper and the second scraper, so that the scraping and guiding device integrates a material scraping function and a material guiding function; therefore, the structure of the sealing scraper combination device is more compact, and the requirement for small and exquisite appearance of equipment is met.

The invention discloses a Dewar flask upper end face sealing structure for a physical adsorption instrument, which comprises triangular cake structures capable of being spliced into a cylinder, each triangular cake structure is provided with an upper functional layer, a middle functional layer and a lower functional layer, the upper functional layer is a weight applying layer, the middle functional layer is an anti-leakage layer, the lower functional layer is a porous fixed supporting layer, and the sections of triangular cakes are the same. And two radiuses corresponding to the central angles of the fan-shaped structures of the upper functional layer, the middle functional layer and the lower functional layer are respectively provided with an inward semicircular gap. The blocking structure between the Dewar flask and the sample tube for the physical adsorption instrument is simple in structure, during working, low-temperature nitrogen volatilized and released from the Dewar flask condenses gas water in air in gaps into ice, the gaps are automatically filled with the ice, the periphery of the outer side of the sample tube can be blocked, loss of liquid nitrogen in a liquid nitrogen container is effectively reduced, and the service life of the sample tube is prolonged. The sustainable testing time after one-time liquid nitrogen adding is prolonged, and the testing effect is guaranteed.

The utility model discloses a charging port semi-finished product airtightness test tool, and relates to the technical field of charging port testing. The charging port semi-finished product airtightness test tool comprises a box body, an alternating current plugging structure, a first sealing structure, a second sealing structure, a third sealing structure and a fourth sealing structure, and two groups of product cavities which are distributed left and right are fixedly installed on the box body. According to the air tightness test tool for the semi-finished charging port, traditional multi-process detection is integrated into an integrated test process through structural innovation, the number of processes is reduced, the process flow is shortened, and the detection efficiency is remarkably improved; a waterproof pad end face sealing structure is adopted, the lower die is provided with a profiling gun inserting head and a silica gel pad sealing assembly, the high working condition reduction degree is achieved, the detection accuracy is remarkably improved, meanwhile, the requirement for operators is reduced due to detection procedure integration, the production cost is reduced, the number of tools is reduced due to the integrated design, and the production efficiency is improved. And the investment cost of equipment is reduced, and the practicability of the tool is improved.

The utility model relates to the technical field of printing machinery, in particular to a multi-face turnover seal which comprises a base. The shell is arranged on the base in a sliding mode, and the shell can slide relative to the base in the vertical direction; the spring is arranged between the base and the shell and is used for providing reset elastic force; the sensor is arranged on the shell and is used for detecting the position of the shell relative to the base; the multi-face seal penetrates through the base and is rotationally arranged in the shell; and the multi-surface seal can be automatically overturned to another seal surface after the seal operation is completed by pressing the shell. The inconvenience of frequently replacing stamps or carrying a plurality of stamps is avoided, and the office and operation efficiency is greatly improved. The seal template is ensured to be accurately positioned after being overturned each time, so that high-precision and high-efficiency automatic overprinting is realized.

The utility model provides an end face sealing structure of a screw air compressor, which relates to the technical field of screw air compressors and comprises a machine body and a sealing structure. An end cover is fixedly connected to one end of the machine body, an inlet is formed in the top of the end cover, an outlet is formed in the bottom of the machine body, a sealing structure is arranged at the end of the machine body, and the sealing structure comprises a connecting protruding column fixedly connected to the end of the machine body, and an assembling ring groove is formed in the inner side wall of the connecting protruding column; the fixed inner ring is fixedly connected into the assembly ring groove, mounting carrying grooves are formed in the two sides of the assembly ring groove, through the arrangement of the sealing structure, the attaching shaft ring and the rotating belt shaft are made of special materials, the sealing contact faces of the attaching shaft ring and the rotating belt shaft can be tightly attached after precision machining, leakage of compressed air is effectively reduced, and the service life of the rotating belt shaft is prolonged. Meanwhile, under the action of the elastic piece, the pre-tightening force can be automatically adjusted according to the abrasion condition of the sealing face, it is guaranteed that the sealing face is tightly attached all the time, and the sealing performance is greatly improved.

A kind of water turbine movable guide vane end face sealing system and method, including guide vane end face sealing structure, guide vane end face sealing structure is respectively installed on the top cover and bottom ring of water turbine, guide vane end face sealing structure is used to form water seal with the end face of movable guide vane when movable guide vane is closed, guide vane end face sealing structure includes sealing block, top cover and bottom ring are respectively provided with sealing groove, sealing block sliding seal is installed in sealing groove, the bottom of sealing groove is provided with pressure hole, pressure hole is connected with pressure supply system by pressure supply pipeline, the outside of movable guide vane is also provided with pressure measuring hole, pressure measuring hole is connected with pressure supply system by pressure measuring pipeline, pressure supply system controls the on-off of pressure supply pipeline by the pressure in pressure measuring pipeline.The on-off of pressure supply pipeline is controlled by the water pressure of the outside of movable guide vane, so that pressure supply pipeline can be self-adaptively started, the control of pressure supply pipeline and the problem of sealing leakage are solved.

The utility model relates to a release bearing unit with a rubber sleeve with end face sealing and aligning functions, which belongs to the technical field of release bearing structures and comprises an inner ring, a central sleeve is arranged in the inner ring, a clamp spring sleeved with the central sleeve in a clamping and embedding manner is arranged on the outer circle of the front end of the central sleeve, an outer ring sleeved with the inner ring is arranged on the inner ring, and the rubber sleeve is sleeved with the outer ring. A retainer is arranged between the outer ring and the inner ring, a plurality of steel balls which are annularly distributed and are nested with the retainer in a sliding manner are arranged on the retainer, and an end surface sealing ring which is nested with the outer ring is arranged between the end surface of the outer ring and the inner ring. The device has the characteristics of compact structure, good operation stability and long service life. And through the special design of the rubber sleeve, the product is well sealed, excessive frictional resistance is not generated, and the service life is prolonged. And the problem of poor sealing is avoided.

The invention relates to the technical field of material precision machining equipment, and discloses an ultra-high-speed cutting type precision grinding machine which comprises a rack, a driving device, a grinding cavity provided with a feeding port and a discharging port, and a rotary movable cutter assembly and a fixed static cutter assembly which are arranged in the grinding cavity and driven by a main shaft. And a combined sealing structure is arranged at a relative motion interface between the rotary moving cutter assembly and the fixed static cutter assembly and comprises a non-contact labyrinth seal and a contact mechanical seal which are sequentially arranged in the potential leakage direction of materials. Through the combined sealing design of labyrinth sealing and mechanical sealing, multiple barriers are arranged on a key material leakage path, the labyrinth sealing dissipates material kinetic energy in advance and blocks most materials, and the mechanical sealing provides final reliable end face sealing, so that the leakage rate is reduced, coarse and fine materials are effectively prevented from being mixed, and the sealing effect is improved. And extremely high particle size uniformity and consistency of the ground product are ensured.

The invention discloses a movable guide vane, system and method for eliminating end face leakage and application, and belongs to the technical field of water turbines.The movable guide vane comprises a guide vane body, a circular pressure cavity and a groove are formed in the guide vane body, the circular pressure cavity is communicated with the groove, a reset spring and an end face sealing block are arranged in the groove, and the end face sealing block is connected with the circular pressure cavity. One end of the reset spring is connected with the guide vane body, the other end of the reset spring is connected with the end face sealing block, the guide vane body is provided with a main pressure channel and an auxiliary pressure channel, one end of the auxiliary pressure channel is communicated with the circular pressure cavity, and the other end of the auxiliary pressure channel is communicated with the main pressure channel. The end face sealing block is specifically arranged on the movable guide vane, the movable guide vane cannot generate any sliding friction with the end face sealing block in the opening and closing process, both the end face sealing block and the movable guide vane cannot generate frictional wear, and the sealing reliability is greatly guaranteed.

The invention belongs to the technical field of ship wind power boosting, and relates to a rotary drum sail deicing system based on a fluid rotary joint and a control method. According to the system, waste heat generated by ship main engine cylinder sleeve water or an exhaust gas boiler is used as a heat source, and a fluid medium is converted into a fluid medium through a closed circulation loop; the multi-channel fluid is guided into a spiral coil pipe or an interlayer flow channel in a rotating cylinder rotating at a high speed through a multi-channel fluid rotating connector, uniform heating of the surface of the cylinder wall is achieved, the system adopts a coaxial rotating connector structure of'inner pipe inflow and outer pipe backflow ', a balanced end face seal and an O-shaped ring are matched, and leakage-free transmission is ensured; and an environment temperature and humidity sensor, an infrared cylinder wall temperature sensor and a vibration sensor are integrated, and an anti-icing mode, a deicing mode and a shutdown purging mode are intelligently switched through a PLC. A high-energy-consumption electric heating slip ring is abandoned, zero extra power consumption, intrinsically safe and high-reliability ice prevention and removal are achieved, the ship energy efficiency index is remarkably increased, and the system is suitable for cold region navigation scenes such as oil tankers and polar region ships.

The utility model relates to a sprayer for sucking and spraying liquid in a container, comprising: a spray gun body; an attachment member for attaching the spray gun body to the container; a connecting member, the connecting member is provided with a flange part formed by protruding radially outward, in the state that the spray gun body is attached to the container, the flange part is clamped between the attachment member and the periphery of the mouth of the container, thereby fixing the connecting member to the container, a rotating area is provided on the flange part, which allows the spray gun body to rotate freely relative to the attachment member. The connecting member of the sprayer has a dual-purpose flange part: firstly, it is clamped between the attachment member and the periphery of the mouth of the container, thereby fixing the connecting member to the container; secondly, the flange part is provided with a rotating area that allows the spray gun body to rotate freely relative to the attachment member, which can form a static end face seal on the one hand, and on the other hand, can also avoid the problem of liquid leakage during rotation caused by only having an end face seal.

The application provides a pressure chamber for rock mechanics testing, and relates to the technical field of rock mechanics experimental equipment.The pressure chamber for rock mechanics testing comprises a protective outer cylinder, one end of which is a closed end and the other end is an open end; a pressurizing inner cylinder coaxially arranged in the protective outer cylinder and in sealed sliding fit with the protective outer cylinder, the pressurizing inner cylinder having an axially-through pressurizing cavity, one end of the pressurizing inner cylinder being in abutment with the closed end, and an end face sealing device being arranged between the closed end and the end face of the pressurizing inner cylinder; a pressurizing pull rod comprising a pressurizing protective head and a first lifting mechanism, the pressurizing protective head being arranged in sealed sliding fit in the pressurizing cavity, the first lifting mechanism being connected with the pressurizing protective head and driving the pressurizing protective head to reciprocate along the axis of the pressurizing inner cylinder; and a second lifting mechanism connected with the pressurizing inner cylinder and the protective outer cylinder and driving the pressurizing inner cylinder to reciprocate along the axis of the protective outer cylinder. The pressure chamber for rock mechanics testing can be conveniently opened and closed while having good sealing effect.

The utility model discloses a waterproof and dustproof deep groove ball bearing which comprises a bearing outer ring and a bearing inner ring, a retainer and rolling bodies are arranged between the bearing outer ring and the bearing inner ring, the rolling bodies are uniformly distributed on the retainer, and a sealing ring is further arranged between the bearing inner ring and the bearing outer ring. A first clamping groove is formed in the inner side wall of the bearing outer ring; a second clamping groove is formed in the outer side wall of the bearing inner ring; the bearing outer ring is provided with the special limiting end face and the avoiding end face, and the mounting part of the sealing ring is provided with the special limiting structure; the sealing ring limiting mechanism is matched with the special limiting end face and the avoiding end face of the bearing outer ring, so that the axial limiting capacity of the sealing ring is improved, and the sealing ring is prevented from being separated from the bearing due to long-time work.

The present application relates to the field of sealing, in particular to an end face sealing structure of a plug valve and a manufacturing method thereof. The end face sealing structure of the plug valve of the present application mainly comprises a detachable connecting structure, an end face sealing ring, a sealing cover plate, an O-shaped sealing ring and a sealing base plate. The sealing cover plate is fixed on the sealing base plate through the detachable connecting structure on the inner side, and the sealing cover plate and the sealing base plate are sealed through the O-shaped sealing ring; the outer side of the sealing cover plate is provided with the end face sealing ring. The fusion of the end face sealing ring is realized by laser heating, the side surface of the end face sealing ring is fused first, and then the bottom surface of the end face sealing ring is fused, and the local non-uniform heating mode is adopted to ensure that no internal stress is generated in the laser fusion process, so that the deformation of the sealing ring caused by stress release can be prevented, and the sealing effect is affected. The present application can be applied to the end face sealing of a vacuum plug valve.

The application discloses a kind of star soil conveying and heating extraction device, including sealed drive module, station conversion module and frame module, the frame module includes frame, hearth and hopper, the station conversion module includes station conversion drive assembly, U-shaped frame assembly, sample assembly, the sample assembly includes sample seat, with sample seat connection sample tray, end face sealing assembly, wherein, the sample tray is integrated with heating sheet and temperature sensor, the sample tray moves horizontally in frame, with right end sample site, left end sealing site and rotating site in the middle, the sample tray is inserted into hearth when in sealing site and end face sealing assembly is sealed with hearth cooperation, and in the sealing site, the heating sheet in the sample tray heats sample according to set control condition, and volatile component in the sample is transported to external detection equipment by pipeline.The structure is reasonable and compact, with sample discarding function, can work continuously without stop.

The utility model belongs to warehouse equipment technical field discloses a kind of intelligent steel net management cabinet with adjustable warehouse width, including cabinet, several layers steel net placing assembly, width adjustment and separation component and intelligent induction and indicating component;Cabinet is constituted by aluminium profile frame assembly and side face sealing plate, and steel net placing assembly includes steel net placing sheet metal assembly, and width adjustment and separation component includes internal force crossbeam, plastic steel wire support and barrier steel wire, and the steel net warehouse position with adjustable width can be formed by adjusting the position of barrier steel wire, and intelligent induction and indicating component includes grating induction assembly and front end indicating lamp strip assembly, for detecting steel net storage state and giving indication.The utility model has the advantages of flexible adjustable warehouse width, strong adaptability, intelligent management, modular design, etc., can be compatible with multiple steel nets, improve management efficiency and space utilization.

The application relates to the technical field of medical devices, and discloses a disposable sheath for an endoscope, which comprises an isolation sleeve, an elastic sealing sleeve and an isolation sheath, the isolation sleeve comprises a front end face and a connecting pipe, the connecting pipe is internally provided with an instrument channel and an endoscope channel which are separated from each other, the front end face seals the front end of the endoscope channel, the front end sealing sleeve is arranged on the outer side wall of the connecting pipe, the rear end of the elastic sealing sleeve extends in a direction away from the front end face, the front end of the isolation sheath is sealed and connected to the endoscope channel, and the rear end of the isolation sheath extends in a direction away from the front end face, and the front end face is a transparent structure. The disposable sheath has the advantages of good observation effect.

The utility model provides an insert structure for an injection molding pipe fitting, and belongs to the technical field of connection of plastic pipes and injection molding pipe fittings. The embedded section is embedded into a pipeline on one side, and the connecting section is connected with a pipeline on the other side; the interiors of the embedded section and the connecting section are respectively provided with communicated channels, the embedded section is provided with a group of through grooves for preventing rotation and separation, and a separation-preventing groove is formed between the embedded section and the connecting section; the outer side of the connecting section is provided with an external thread structure used for guaranteeing the connecting strength between the connecting section and the pipeline, and a shoulder structure used for improving the end face sealing effect is arranged in the connecting section. Based on the optimized design of the structure, the anti-rotation and anti-falling performance of the insert is improved, the bonding strength of plastic and the insert is improved, the plastic can be filled in the insert, the insert cannot make direct contact with a medium, the situation of water seepage is avoided, and the sealing effect of the end face can be improved.

The invention provides an electrochemical in-situ reaction device for time-resolved XAFS (X-ray fluorescence spectroscopy) testing, which relates to the field of spectral analysis testing and comprises a reaction tank body, a liquid layer thickness adjusting mechanism and a visualization mechanism, the end face sealing mechanism is arranged on the side, away from the first through hole, of the second through hole and is provided with a sample mounting position; an optical window hermetically extending into the reaction tank body is formed at one end of the visualization mechanism, and the liquid layer thickness adjusting mechanism adjusts the distance between the optical window and the second through hole; when the end face sealing mechanism is hermetically connected to the reaction tank body, the sample mounting position faces the interior of the tank body. According to the invention, the distance between the optical window and the second through hole is precisely adjusted through the liquid layer thickness adjusting mechanism to precisely adjust the thickness of the liquid layer, so that the application of the millisecond-level time-resolved XAFS technology in the electrochemical liquid phase reaction direction is realized, and a high-precision in-situ reaction device is provided.

The utility model discloses a rotary easy -open cover, including cover body, sealing body and handle, the middle of cover body is equipped with an opening through -hole, and sealing body includes connecting portion, elastic part and sealing part, and sealing part is connected with connecting portion through elastic part, and connecting portion is fixedly connected the lower end surface of cover body, and sealing body corresponds opening through -hole, and one end of handle is equipped with the stirring part, and the other end is equipped with the clamping part, and the middle part of handle and the middle position of sealing part form rotatable connection, and sealing part is equipped with a circle soft sealing convex part, when the clamping part is clamped in the upper end surface of cover body by rotating handle, the soft sealing convex part on sealing part seals opening through -hole, and the clamping part falls into opening through -hole by rotating handle, and elastic part drives sealing part away from cover body to open opening through -hole. The utility model discloses still adopt the packing jar of above -mentioned easy -open cover, and its jar body is convenient to open and seal switch, and secondary sealing performance is good, and the use range is wider.

The invention relates to the technical field of mechanical seals, in particular to a double-end-face split type mechanical seal which comprises a split type upper flange, a split type lower flange, a split type middle shell, a split type transmission base, a split type medium moving ring, a split type medium static ring, a split type atmosphere moving ring and a split type atmosphere static ring. The transmission seat is fixed on the rotating shaft, the transmission seat is sleeved with the middle shell, and the upper flange and the lower flange are connected to the two ends of the middle shell respectively; the atmospheric static ring and the upper flange are mounted, and the medium static ring and the lower flange are mounted; the medium moving ring and the atmosphere moving ring are in transmission connection to the two axial sides of the transmission seat, and a containing space is reserved between the medium moving ring and the transmission seat so that an elastic element can be arranged to provide axial pressing force for the moving rings, and the moving rings are pushed to be attached to the end faces of the corresponding static rings to form a double-end-face sealing pair; the middle shell, the upper flange, the lower flange and the double-end-face sealing pair jointly form a sealing cavity. At least one of the middle shell, the upper flange and the lower flange is provided with a fluid connector communicated with the sealing cavity. The mechanical seal is simple in structure and convenient to install.

The present application relates to a kind of detection tool for testing the leakage of parts, detection tool includes standard sealing ball, connecting joint, booster assembly, the gas path is opened in the connecting joint, the gas path one end is communicated with the booster assembly, the other end is provided with mounting groove, the opening of the gas path one end is equipped with standard sealing ball limit slot between the mounting groove, the standard sealing limit slot is matched with the standard sealing ball, and is provided with the air passage of the mounting groove and the gas path, so that when the outer edge of the mounting groove and the end surface of the part to be detected provided with the opening are sealed and contacted, the two ends of the standard sealing ball are respectively contacted with the sealing surface and the standard sealing ball limit slot, the mounting groove is kept in communication with the gas path by air passage, and the booster assembly can be inflated and pressurized in the mounting groove and the gas path.Compared with the prior art, the present application has the advantages of high detection efficiency, easy to use, improve rework efficiency, etc.

The utility model discloses a light waterproof slewing bearing, which relates to the technical field of mechanical equipment, and comprises an inner ring and an outer ring which are coaxially arranged, an annular raceway is formed between the inner ring and the outer ring, and a steel ball and a retainer are arranged in the annular raceway; inner and outer diameter end face sealing grooves extending in the axial direction are formed in the end face of the inner side of the outer ring, inner and outer diameter end face sealing grooves extending in the radial direction are formed in the corresponding position of the inner ring, and the two sets of inner and outer diameter end face sealing grooves jointly form a continuous waterproof structure. A waterproof sealing ring is embedded in the inner and outer diameter end face sealing groove; a lip-shaped sealing ring is arranged on the inner side of the outer ring; and mounting holes are formed in the outer ring. According to the double-lip sealing ring, the flow guide fins quickly guide sputtered water flow to the outer side, and accumulated water permeation is avoided; the oil storage micropores of the engineering plastic retainer can continuously release the lubricating grease, so that the grease supplementing period is prolonged, the volume of the middle oil storage groove can automatically compensate the abrasion of the sealing surface, and the leakage of the lubricating grease caused by sealing failure is avoided.

The utility model discloses a bearing chamber sealing structure for a roller cage shoe. The bearing chamber sealing structure comprises a wheel shaft, a dynamic sealing assembly, a tapered roller bearing, a bearing sleeve and a static sealing assembly. The bearing has the advantages that the dynamic sealing assembly and the static sealing assembly are integrated at the inner end and the outer end of the bearing chamber through the multi-sealing collaborative design, and axial protection and radial protection are formed. Compared with a single labyrinth seal, the radial sealing rigidity is strengthened through interference fit of the rigid sleeve and the main shaft, meanwhile, axial unbalance loading is counteracted through symmetrical arrangement of the framework oil seals, and the dynamic sealing reliability is remarkably improved; the annular groove and the sealing table are additionally arranged at the static sealing end, stepped end face sealing is formed by the static sealing end and the outer end face of the bearing sleeve, and compared with plane end face sealing, slurry particles can be effectively intercepted, and the abrasion rate of a sealing interface is reduced.