1944results about "Engine lubrication" patented technology

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 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 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.

The present disclosure provides a kind of injection valve, belongs to automatic lubrication system technical field.The injection valve includes valve body, valve core structure and injection structure, the inside of the valve body has communication channel, oil inlet channel, air inlet channel, oil injection channel and jet channel, the first end of the oil inlet channel, the first end of the air inlet channel, the first end of the oil injection channel, the first end of the jet channel are communicated with the communication channel, the second end of oil injection channel is used to spray out grease, the second end of the jet channel is used to spray out compressed air;Valve core structure is movably located in the communication channel, the above injection valve can be introduced into grease, while introducing compressed air into injection valve at the same time to spray out grease, to avoid the waste of compressed air.

The utility model belongs to the field of curved block processing equipment, and particularly provides a parameter-controllable curved block bionic treading and rubbing device which comprises a power device used for driving a lifting assembly to lift up and down, the lifting assembly comprises a lifting platform, and the lifting platform is connected with a treading and rubbing support through a connecting rib plate. A plurality of treading and kneading lifting guide sleeves for guiding the treading and kneading connecting device are arranged on the treading and kneading support, a treading and kneading assembly is arranged on the lifting assembly, the treading and kneading assembly comprises an excitation power device for driving an eccentric shaft assembly, the eccentric shaft assembly comprises a power shaft, a plurality of eccentric bearings are arranged on the power shaft, and the upper end of an output sleeve rod is connected with the eccentric bearings; the treading and kneading connecting rod device comprises a loading connecting rod hinged to the supporting hinged support, the upper end of the tolerance connecting rod is hinged to the loading connecting rod, the lower end of the tolerance connecting rod is hinged to the treading and kneading connecting device, and the lower end of the treading and kneading connecting device is connected with the treading and kneading mold. The device simulates manual treading of the flexing block with feet for multiple times, improves the production efficiency and reduces the labor intensity.

The utility model discloses a multiphase flow intelligent control mixed transportation system which comprises a suction and extraction tank, a separation pressurization mixed transportation tank, an intelligent control cabinet, a pump body, a variable frequency motor, a transmission mechanism and at least one group of continuous suction and extraction units, an inlet and a plurality of outlets are formed in the surface of the pump body, and the suction and extraction tank is connected with the inlet of the pump body through a first pipeline; the separation pressurization mixed conveying tank is connected with a plurality of outlets of the pump body through a plurality of second pipelines, the intelligent control cabinet is electrically connected with the variable frequency motor, the continuous suction and extraction unit comprises two suction and extraction assemblies, and the variable frequency motor is connected with the continuous suction and extraction unit through a transmission mechanism; and when one of the suction and extraction assemblies discharges the medium into the separation and pressurization mixed transportation tank, the other suction and extraction assembly sucks and extracts the medium in the suction and extraction tank when the other suction and extraction assembly discharges the medium into the separation and pressurization mixed transportation tank. The device is simple and reliable in structure, can realize efficient and continuous conveying of gas, solid and liquid mixtures, and can be used for absorption and recovery as well as reinjection.

The invention relates to the field of cranes, in particular to a crane traveling wheel set with a track cleaning function, which comprises a track frame and a traveling wheel set arranged on the track frame, a retracting part is arranged at the front part of the upper end of the traveling wheel set, and the end part of the retracting part is connected with a lubricating oil tank; two brush bodies are symmetrically and obliquely installed at the lower end of the lubricating oil tank, the ends of the brush bodies are attached to the rail frame, a plurality of oil outlet holes are formed in the position, between the two brush bodies, of the lower end of the lubricating oil tank in a linear array penetrating mode, and a V-shaped shovel head is fixedly installed on the lower portion of the front end of the lubricating oil tank and attached to the rail frame. The labor intensity of workers is reduced, the working efficiency is improved, meanwhile, the phenomena that a V-shaped shovel head damages a lubricating oil layer and lubricating oil is continuously discharged to cause waste are avoided, and the phenomenon that the lubricating oil is polluted when the brush body is used for smearing is prevented.

The invention relates to the technical field of linear motors, in particular to a T-shaped mover linear motor with a self-lubricating function, which comprises a rack and a mover motor, a load platform is mounted at the top of the mover motor, and guide blocks which are symmetrically distributed are fixed on the inner wall of the load platform; guide grooves which are symmetrically distributed and matched with the guide blocks are formed in the side wall of the rack, oil storage cavities which are symmetrically distributed are formed in the load platform, oil outlet holes are formed in the guide blocks in a penetrating mode, one end of each oil outlet hole is communicated with the corresponding oil storage cavity, and an oil storage tank is arranged on one side of the rack and connected with an automatic oil supplementing mechanism. Wherein an oil supply mechanism is arranged in the oil storage cavity; according to the linear motor, in the reciprocating motion process of the rotor, the oil supply mechanism can continuously discharge the lubricant in the oil storage cavity from the oil outlet hole and uniformly smear the lubricant on the surface of the guide groove to achieve self-lubrication, the automatic oil supplementing mechanism automatically supplements the lubricant to the oil storage cavity, manual intervention is not needed in the whole process, and the stability and maintenance-free performance of equipment operation are remarkably improved.

The invention discloses an automatic assembling device and method for an O-shaped ring in an oil injector hole of an engine cylinder cover, and relates to the technical field of engine cylinder covers. The feeding mechanism comprises a feeding base, and a vibrating screen mechanism, a stop block mechanism and a jacking mechanism which are connected to the feeding base; the vibrating screen mechanism is used for sequentially conveying a plurality of O-shaped rings into the mounting positions of the stop block mechanism; a supporting claw connected with an O-shaped ring is arranged in an installation position of the check block mechanism, and an opening and closing baffle assembly is arranged at the top of the installation position. The jacking mechanism is provided with a jacking plate and a jacking device, and the jacking device can jack the jacking plate to enable the O-shaped ring on the supporting claw to be ejected out. The assembling mechanism comprises a conveying mechanism, an assembling base, a driving device and a grabbing and clamping mechanism; the assembling base is movably connected to the conveying mechanism; the driving device is connected to the assembling base; the driving device drives the grabbing and clamping mechanism to move so as to grab the O-shaped ring on the supporting claw, and the O-shaped ring is pressed into an oil spraying hole of the cylinder cover.

The invention discloses an oil-lubricated vertical roller end shaft sleeve, and belongs to the technical field of transmission of metal rolling equipment. An inner cavity used for containing a roller flat head is formed in a shaft sleeve body of the shaft sleeve, an oil storage cavity is formed in the bottom of the inner cavity, an oil inlet hole is formed in the shaft sleeve body and communicated with the oil storage cavity, and a quick connector is arranged on the oil inlet hole. The lining plate is fixed to the inner cavity wall of the shaft sleeve body, the outer centering sleeve is fixed to the inserting end of the shaft sleeve body, and the inner centering sleeve is fixed to the connecting end of the shaft sleeve body. A first sealing groove for mounting a first oil seal is formed in the inner wall of the outer centering sleeve; a second sealing groove for mounting a second oil seal is formed in the inner wall of the inner centering sleeve; the lining plate is provided with a matching surface and a mounting surface opposite to the matching surface, the mounting surface is provided with an oil inlet groove extending to the lower end part, and the matching surface is provided with an oil storage groove; and the quick-plug connector, the oil storage cavity, the oil inlet groove, the oil storage groove, the inner cavity of the inner centering sleeve and the inner cavity of the outer centering sleeve form a closed oil way.

The invention discloses a workpiece transportation turnover machine for whole vehicle manufacturing of a new energy vehicle, and relates to the technical field of turnover machines for transportation. The device comprises a conveying module and supporting legs, the supporting legs are fixedly installed on the four edges of the bottom face of a U-shaped bottom plate of the conveying module, the device further comprises a turnover device, the turnover device is arranged in the middle of the bottom face of the U-shaped bottom plate of the conveying module, and the turnover device comprises a U-shaped frame plate, two rotating rods, a limiting rotating plate and a driving device; the U-shaped frame plate is fixed to the middle of the bottom face of a U-shaped bottom plate of the conveying module, the two rotating rods penetrate through and are rotationally installed at the top of the inner wall of the U-shaped frame plate, the limiting rotating plate is fixed to the opposite faces of the two rotating rods, the limiting rotating plate is arranged above a conveying belt of the conveying module, and the driving device is located at the top of the front face of the U-shaped frame plate. Goods are driven to turn over rightwards through the limiting rotating plate, and the situation that the goods fall off when turned over due to the fact that the bottom of the turnover machine is not stressed when the goods are turned over is avoided.

The invention provides a four-direction intelligent directional forward-going and backward-going perforation auxiliary cutting mechanism which comprises a protection shell, a cutting mechanism, a cutting mechanism, a cutting mechanism, a cutting mechanism, a cutting mechanism and a cutting mechanism, and is characterized in that a mounting cavity is formed in the protection shell, and a rear end cover is arranged at the rear end of the mounting cavity; the driving piece is arranged in the mounting cavity of the protective shell and is mounted on the inner end surface of the rear end cover; the eccentric block is mounted at the output end of the driving part; an inclined inner hole is formed in the end, away from the driving piece, of the eccentric block. An included angle exists between the axis of the inclined inner hole and the axis of the eccentric block. And the oscillating cutting part comprises a connecting shaft and an oscillating cutting head located at the front end of the connecting shaft, the connecting shaft is movably installed in the inclined inner hole, the end, away from the connecting shaft, of the oscillating cutting head extends out of the installation cavity, and a plurality of cutting blades are arranged on the circumference of the outer surface of the oscillating cutting head. Wherein the driving piece rotates to drive the eccentric block to rotate, and the eccentric block rotates to drive the oscillating cutting part to cyclically swing periodically, so that the cutting blade mills coal rocks. The problems that cutting resistance is large, cutting blades are seriously abraded, the dust yield is high, hard rock cutting efficiency is low, and energy consumption is large are solved.

The invention relates to the field of petroleum and natural gas exploration and development, in particular to a combined sealing structure and a telescopic pipe column system for oil field production, which comprise a combined sealing ring, and the combined sealing ring comprises a V-PAC sealing ring and a pre-cooling expansion sealing ring which are arranged in parallel; the outer circumferential face of the V-PAC sealing ring and the outer circumferential face of the pre-cooling expansion sealing ring are both coated with hydrogel. A cavity is formed in the precooling expansion sealing ring, and the cavity is filled with gallium-based liquid metal; the inner pipe is used for transmitting media, and the outer pipe plays a role in protection and supporting. The inner pipe is sleeved with the outer pipe, sliding fit is formed, stretching is achieved through sliding, and the effect of compensating for the length change of the pipe column is achieved. The inner pipe and the outer pipe are connected into a whole through the connected flanges and the connecting rods, and meanwhile the connecting rods play a sliding guiding and limiting role. The sealing ring combination is arranged between the inner pipe and the outer pipe, so that the sealing performance of the telescopic pipe column system is ensured.

The utility model is applicable to the technical field of engine parts, and provides a steel connecting rod, which comprises a connecting rod body and a connecting rod tile cover, the connecting rod body is detachably connected with the connecting rod tile cover, one end of the connecting rod body far away from the connecting rod tile cover is provided with a small end hole, and the other end of the connecting rod body is connected with the connecting rod tile cover to form a large end hole. A shaft sleeve is arranged in the small-end hole, a bearing bush is arranged in the large-end hole, and an oil throwing spoon is detachably installed on the connecting rod bush cover. The shaft sleeve and the bearing bush are respectively arranged at the small-end hole and the large-end hole of the connecting rod, so that the abrasion can be effectively reduced, the maintenance cost is reduced, the split type oil throwing spoon is simple and reliable to install, and the oil throwing spoon is detachably installed and fixed by using a stamping structural member, so that engine oil can be effectively lubricated, the strength of connecting rod parts damaged by welding is also avoided, and the service life of the connecting rod is prolonged. And the risk is greatly reduced.

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

The utility model relates to the technical field of hardware tools, in particular to a double-opening wrench with a lubricating function, which comprises a double-opening wrench body, a reserved opening is arranged on the surface of the double-opening wrench body, mounting grooves are arranged at two ends of the reserved opening, and oil absorption cotton blocks are inserted into the mounting grooves. Oil seepage grooves are formed in openings in the two ends of the double-opening wrench body, oil seepage holes are formed in the surfaces of the oil seepage grooves, and the oil seepage holes communicate with the mounting groove; the lubricating oil supply device has the beneficial effects that by pushing the push rod, the piston plate extrudes the oil absorption cotton block, absorbed lubricating oil seeps into the oil seepage groove through the oil seepage hole, and automatic supply of the lubricating oil is achieved. In this way, operation is easy and convenient, it can be guaranteed that the wrench is always kept in a good lubricating state in the using process, and therefore the working efficiency is improved.

The invention discloses a bridge type hoisting device for hoisting large equipment, and relates to the field of hoisting devices.The bridge type hoisting device comprises two movable sliding rails, a mounting sliding rail is slidably mounted on the two movable sliding rails, a hoisting trolley is mounted on the mounting sliding rail, and a hoisting motor, a steel cable winding drum and a speed reducer are mounted on the hoisting trolley; and a motor shaft is mounted on the hoisting motor. It needs to be explained that in the embodiment of the invention, when the hoisting trolley hoists large equipment, the dustproof box and the two bottom side sealing plates are synchronously opened for heat dissipation, and when hoisting is completed, the dustproof box and the two bottom side sealing plates are synchronously closed, so that the problem that the equipment on the hoisting trolley is corroded due to dust accumulation or long-term exposure is avoided; the safety of each device on the hoisting trolley is ensured; in addition, the hoisting steel cable can be automatically lubricated during use, and when the hoisting trolley stops using, the lubricating head is sealed through the lubricating sealing plate, so that the purpose of automatically opening and closing the lubricating head is achieved, and waste of lubricating oil is avoided.

The invention discloses a visual inspection four-station riveting work station, relates to the technical field of automatic manufacturing equipment, and aims to solve the problems of low efficiency, unstable quality and insufficient detection precision in traditional brake pad riveting production. The four-station rotary table drives products to sequentially complete feeding, riveting, detecting and discharging procedures, the servo riveting mechanism ensures riveting quality through precise driving and pressure feedback, the visual detection mechanism accurately recognizes characteristic parameters of the products to screen unqualified products, the automatic oil dispensing mechanism solves the problem of rivet paint falling, the control system overall plans the action time sequence of all the mechanisms, and the riveting quality is guaranteed. According to the workstation, manual intervention is reduced through automatic integrated design, production efficiency and quality stability are improved by means of precise control and high-precision detection, meanwhile, the workstation has multi-model product adaptation capacity, supports rapid remodeling and data tracing, and is suitable for large-scale riveting production scenes in the fields of automobile parts and the like.

The utility model discloses a socket device for connecting a main rudderstock and a detachable flap type rudder blade of a ship, which comprises a lubricating component, a connecting component and a connecting component, and the lubricating component comprises a main rudderstock body, a lubricating tank, an oil leakage hole, a ball and an upper oil pipe; the lubricating tank penetrates through the upper end of the outer surface of the main rudderstock body, the oil leakage hole is formed in the inner wall of the lubricating tank, the ball is movably installed in the oil leakage hole, the upper oil pipe is connected to one side of the upper surface of the lubricating tank, the sealing cover is installed at the upper end of the outer surface of the upper oil pipe, and the fixing plate is fixed to the lower end of the outer surface of the lubricating tank. Fixing holes are formed in the outer surface of the fixing plate. Through the arrangement of the lubricating assembly, the problems that in the background technology, if an existing main rudderstock is not properly lubricated, due to the fact that direct contact and friction between metal are increased, abrasion of parts is accelerated, and due to excessive abrasion, not only is the service life of the rudderstock shortened, but also the service life of the rudderstock is shortened are solved. The function of the rudderstock may fail at the key sailing moment, and the maneuverability and safety of the ship are affected.

The utility model relates to the technical field of electric actuators, and discloses an anti-surge electric actuator with an anti-jamming mechanism, which comprises a front control seat, the rear end of the front control seat is connected with a rear control seat, a main shaft is inserted into the top of the rear control seat, a hand wheel is mounted at the top of the main shaft, and the anti-jamming mechanism is mounted on the hand wheel. A separable sleeve shaft is installed in the rear control base, and an auxiliary worm wheel is arranged outside the separable sleeve shaft. According to the utility model, the anti-locking structure is arranged, so that the rotating motor in the rear protective cover drives the auxiliary rotating wheel and the rotating worm to rotate during use, and the rotating worm drives the auxiliary worm gear outside the separable sleeve shaft to be engaged; before and after use, grease can be injected into the oil storage box through the conveying pipe via the rubber plug at the rear end of the rear control seat, then the grease in the oil storage box is immersed into the oil absorption cotton layer and then drips between the rotating worm and the auxiliary worm gear, the lubricity between the auxiliary worm gear and the rotating worm is improved, and therefore the anti-jamming function is achieved.

The utility model provides a bearing oil circulation lubricating device which comprises a main positioning seat and a sealing outer lining, a set of fixing bases used for supporting the lower end of the main positioning seat are arranged at the lower end of the main positioning seat, and a set of rear positioning shells used for positioning the rear side of a bearing to be lubricated are arranged on the rear side of the main positioning seat. Compared with the prior art, the lubricating bearing positioning device has the advantages that the front sealing plate and the rear sealing plate are fixedly connected with the corresponding sealing linings through the bolts, so that the lubricating bearing positioning device is simple in structure and convenient to use, and the service life of the lubricating bearing positioning device is prolonged. And meanwhile, the rear sealing embedding seat is tightly attached to the rear side of the front sealing plate to enhance the sealing performance, during lubricating operation, lubricating oil is injected from an oil inlet, oil liquid is evenly diffused to a bearing raceway through an oil guide cavity, the inner embedded positioning ring ensures that an oil way is smooth, the sealing outer lining and the sealing inner lining act synergistically to prevent the oil liquid from leaking, and redundant oil liquid flows back to a circulating system from an oil outlet.

The invention provides a double-pipe self-locking type gas spring and relates to the technical field of double-pipe self-locking type gas springs, the double-pipe self-locking type gas spring comprises a sleeve, a lubricating structure, a connecting structure and a safety structure, a sliding rod is installed on the inner wall of the sleeve, a connecting piece is arranged at the end, away from the sliding rod, of the sleeve, and a connecting piece is arranged at the end, away from the sleeve, of the sliding rod; the connecting piece and the joining piece are connected with the sliding rod and the sleeve respectively through connecting structures, and a lubricating structure is arranged at the upper end of the sleeve. The problems that when a double-pipe self-locking type spring is used, a lubricating device is arranged in the double-pipe self-locking type spring, but in the actual using process, lubricating oil is troublesome to add and replace, continuous and stable lubrication of sliding parts in the double-pipe self-locking type spring is difficult to achieve, and the service life of the double-pipe self-locking type spring is affected are solved. The problem that the normal use and the service life of the double-tube self-locking spring are affected due to the fact that the sliding rod and the sleeve are prone to being blocked and even abraded due to the fact that friction is too large is solved.

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

The utility model provides a self-lubricating fixed winch, which relates to the technical field of winches, and comprises a base, an elastic extrusion plate and a wire guide plate, a left baffle plate and a right baffle plate are respectively fixed at the left part and the middle part of the upper end surface of the base, a winding roller is rotatably connected between the left baffle plate and the right baffle plate, and a rotating shaft is fixed at the right end of the winding roller; the right end of the rotating shaft is installed at the front end of the motor, a wire plate is installed between the front portions of the left baffle and the right baffle, an elastic extrusion plate is installed between the rear portions of the left baffle and the right baffle, an oil storage tank is installed on the right portion of the upper end face of the base and located on the right side of the motor, and a right fixing plate is arranged at the right end of the base. A rope is wound on the winding roller, and one end of the rope penetrates through the wire guide plate. Lubricating oil can be conveniently, evenly and automatically smeared on the rope in a large area, so that the toughness of the rope is better maintained, the wound rope is accurately and stably guided, and the rope winding device is safer and more practical.

The utility model relates to the technical field of engine oil pan, especially a leakage-proof structure of in-line piston engine, an engine and an aircraft, including setting in the oil pan of engine crankcase body subassembly lower part, the oil pan forms a basin -like structure of one inner bottom surface basically level, the inner bottom surface of oil pan is concave downward and forms the oil storage groove that the structure is further outward protruding relative to the outer bottom surface of oil pan, the outer bottom surface of oil pan and the outside wall between oil storage groove smooth transition, the sealing edge contact surface of oil pan and engine crankcase body subassembly connection is wide side design, and is installed on the sealing edge contact surface with wide -side sealing pad, and the width of wide -side sealing pad is greater than the width of sealing edge contact surface, the utility model simplifies the structure, makes can adapt to the large inclination angle of aircraft ±45 DEG movement, greatly reduces the oil leakage risk simultaneously.

The invention belongs to the technical field of fluid braking equipment, and particularly relates to a safety limiting device for a pull rope oil cylinder, which comprises a fixed frame, a sliding base and a hydraulic oil cylinder, the device further comprises a stable transmission mechanism. On one hand, in the stretching and retracting process of the hydraulic oil cylinder, the sliding base is driven to move in the mode that the fixed pulley pushes the transmission steel cable, and in the moving process, due to the fact that the fixed pulley and the transmission steel cable are symmetrically distributed on the upper side and the lower side of the hydraulic oil cylinder, tension of the transmission steel cable on a connecting piece is more balanced; on the other hand, due to the arrangement of the fixed pulley and the sliding base, under the condition that the stroke of the sliding base is fixed, the stroke of the hydraulic oil cylinder is halved, the requirement for the rigidity of the hydraulic oil cylinder is lowered, and the bending probability of the hydraulic oil cylinder is lowered; the stability of the hydraulic oil cylinder for driving the sliding base to move is further enhanced.

The invention relates to the technical field of thin coal seam mining equipment, in particular to a thin coal seam mining machine with separated cavities. The thin seam mining machine arranged in the separated cavities comprises a machine body, a cover plate assembly and a lubricating assembly, the machine body comprises a first shell, a transmission shell and a third shell which are sequentially arranged at intervals in the extending direction of the machine body, the first shell is provided with a first cavity, the transmission shell is provided with a transmission cavity, the third shell is provided with a third cavity, and the cover plate assembly comprises a plurality of cover plates. The first shell, the transmission shell and the third shell are each provided with a detachably-connected cover plate, the cover plates are used for opening or sealing the corresponding first cavity, the transmission cavity or the third cavity, the lubricating assembly comprises a plurality of lubricating pumps, the cover plates are provided with liquid passing oil ways, and the output ends of the lubricating pumps communicate with inlets of the liquid passing oil ways of the cover plates. Outlets of the liquid passing oil ways of the cover plates face the directions corresponding to the bottoms of the first cavity, the transmission cavity and the third cavity. According to the thin seam coal mining machine arranged in the divided cavities, the oil way of the coal mining machine can be conveniently cleaned, and the running stability of the coal mining machine is improved.

An engine oil pan capable of being installed on a front axle relates to the technical field of oil pans and comprises an oil pan body, the oil pan body comprises a shallow box part extending in the longitudinal direction, one end of the shallow box part is fixedly connected with a deep box part which extends in the transverse direction and is communicated with the shallow box part, and the top of the shallow box part and the top of the deep box part are jointly provided with a top installation edge. A plurality of engine cylinder block mounting holes are formed in the top mounting edge in a shape-following parallel penetrating mode, an end mounting edge is arranged at the end, away from the deep box part, of the shallow box part, and an engine cylinder block connecting plate mounting hole and a flywheel shell mounting hole are formed in the end mounting edge. The utility model solves the problems in the prior art that the space utilization rate of an oil pan is low, the occupied space below a chassis is large due to the independent installation of a front axle and the oil pan, the ground clearance of a vehicle, the layout of a front bracket and the minimum turning radius are limited, and the trafficability and practicability of the vehicle are influenced.

The utility model relates to the technical field of plastic uptake product edge cutting, in particular to a forming edge cutting mechanism of a plastic uptake product, which comprises an edge cutting machine, a movable frame is connected to the outer side of the edge cutting machine in a sliding mode, a telescopic air cylinder drives a cutting knife to reset through arrangement of a movable assembly, so that a connecting block pushes a trigger rod and drives a telescopic rod to contract, and the edge cutting machine is used for cutting the plastic uptake product. At the moment, a fixing strip slides in an inclined groove formed in the surface of a connecting plate so as to abut against the connecting plate to move towards the surface close to the cutting knife, when a rotating shaft rotates, a movable shaft, a threaded rod, a sliding block and a toothed plate at the bottom can be driven to move downwards through a belt, and when the toothed plate moves downwards, a gear engaged with the surface and a grinding disc can be driven to rotate; according to the edge cutting device for the plastic uptake product, the used cutting knife is polished, the situation that in the edge cutting process of the plastic uptake product, the cutting knife makes frequent contact with the plastic product and cuts the plastic product, a cutting edge is gradually abraded, and the sharpness is reduced is prevented, the edge cutting quality and precision are improved, and the edge cutting efficiency is improved.

The running belt supporting plate comprises a base plate and a wear-resisting layer, the wear-resisting layer is fixedly connected to the upper end face of the base plate in a combined mode, a plurality of grooves are formed in the upper end face of the wear-resisting layer, 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. The invention further discloses a preparation method of the running belt supporting plate, industrialized production is conveniently achieved, and the production efficiency is improved.