19 results about "Hydraulic seal" patented technology

The invention relates to the technical field of underground water recharging, and particularly discloses a deep foundation pit underground water pumping and recharging balanced vacuum pressure type recharging device which comprises a basic hardware system, a sealing isolation system, a dynamic regulation and control system and a monitoring feedback system. The sealing isolation system comprises a vacuum well lid; according to the pipeline sealing assembly, a hydraulic drive sealing ring is arranged at the joint of a dewatering well water outlet pipe and a recharge well water inlet pipe, the sealing ring automatically expands to fill gaps during water injection, and air permeation is thoroughly isolated; through triple air isolation formed by water pumping pipe head immersion, vacuum well lid sealing and hydraulic sealing rings, contact between underground water and air is reduced to the maximum extent, oxidation reaction is reduced from the source, and the precipitation amount of iron and manganese oxides is reduced by 60% or above; meanwhile, bubbles and sediments can be effectively removed, more than 90% of bubbles and sediments can be actively removed through a periodic back raising and silt pumping mechanism, the anti-blocking performance of the recharge well is remarkably improved, and therefore the service life of the recharge well is prolonged.

The utility model discloses a hydraulic sealing plug, including sealing cap and plug, the sealing cap one end is with the sealing end cap of sealing, the other end is open, the inside cavity is cylindrical, and the outside is polygon, the plug is located the inside cavity of sealing cap, and is fixed in sealing end cap inboard middle part, and the plug includes the straight plug of upper portion and the reducing plug of lower portion, the reducing plug outer wall is surrounded and is provided with the screw thread, the straight plug and the reducing plug junction are equipped with the sealing ring, the sealing ring is equipped with between the sealing ring of sealing end cap below and the plug of sealing cap inner wall, simple structure, convenient to use, have good sealing performance, and have longer life.

The invention relates to the technical field of hydraulic elements, in particular to an assembling and positioning device for a high-precision hydraulic element. The invention discloses a precise assembling and positioning device for a high-precision hydraulic element. The precise assembling and positioning device comprises a barrel body and a cylinder body which are connected; the cylinder body comprises a cylinder body and cylinder body preassembly positioning sensor which is embedded in the bottom of the cylinder body and corresponds to the cylinder body and cylinder body preassembly center position, a one-way pressure release valve fixed to one side of the bottom of the cylinder body, and a hydraulic sealing detection sensor embedded in the side wall of the cylinder body. On one hand, the hydraulic element assembling control module accurately controls preassembling and assembling of the barrel and the cylinder body, accurate assembling of hydraulic elements by workers is facilitated, and reusability of the hydraulic elements is guaranteed; and on the other hand, the barrel body and the cylinder body in the hydraulic element are accurately matched, so that the problems of repeated assembly, assembly errors and influence on the assembly precision are avoided, and the product performance and quality of the hydraulic element are greatly improved.

This invention discloses a non-contact hydraulic sealing device based on the hydrodynamic effect of spiral grooves, aiming to solve the problem of dry friction damage between the spiral groove surface and the smooth surface of the stationary ring during the start-up and shutdown phases of pump equipment. The device includes a rotating ring, a stationary ring, a secondary ring, and a locking mechanism. During initial startup, the secondary ring rotates under the viscous shear force of the rotating ring, effectively transferring mechanical friction to a preset wear-resistant surface, protecting the core spiral groove from high temperature and wear. When the rotational speed reaches a preset threshold, the locking mechanism is hydraulically or electromagnetically driven, braking through a piston and locking block, causing the secondary ring to transition from a rotating state to a stationary locked state. At this time, a momentary speed jump occurs between the rotating ring and the secondary ring, guiding the spiral groove to quickly establish a high-rigidity liquid film, achieving stable and reliable non-contact operation. This invention, by introducing a secondary ring and coordinating with locking and braking control, achieves friction transfer, protects the core working surface, and achieves a protective effect on the core hydraulic sealing structure.

This invention belongs to the field of shock absorber technology and relates to a large-size wellbore axial shock absorber, including an upper connector, a housing, and a lower connector. The housing is fitted onto the outer wall of the upper connector, and a receiving cavity is formed between the inner wall of the housing and the outer wall of the upper connector. A disc spring shock absorber assembly is installed in the receiving cavity. A hydraulic shock absorber assembly is connected to the bottom of the housing, and the lower connector is connected to the bottom of the hydraulic shock absorber assembly. The hydraulic shock absorber assembly includes a hydraulic shell, a piston, and a hydraulic sealing seat. The hydraulic shell is fitted onto the bottom of the housing, and the hydraulic sealing seat communicates with the bottom of the hydraulic shell and forms a hydraulic cavity inside. The piston slides through the hydraulic sealing seat and is slidably disposed in the hydraulic cavity. The piston has a hydraulic through hole, and an electromagnetic proportional valve is connected to the hydraulic through hole. This invention improves the problem of existing technology's single shock absorber element and fixed parameters, which are difficult to adapt to the vibration characteristics of large-size wellbores, by combining disc spring and hydraulic shock absorption, adaptive stiffness of shape memory alloy adjustment plate, and active adjustment by electromagnetic proportional valve.

The invention discloses a brake caliper maintenance method which comprises the following steps: S1, placing a brake caliper to be maintained in an operation area, disassembling and decomposing the brake caliper by using a tool assembly, and shooting the disassembling and decomposing process of the brake caliper through an image acquisition module; s2, the decomposed brake caliper parts are put into an ultrasonic cleaning machine to be cleaned; s3, the cleaned brake caliper parts are transferred into a drying device to be dried; s4, the dried brake calipers are assembled in an operation area, the assembling process is shot through an image acquisition module, and the assembled brake calipers are installed on a hydraulic sealing detection tool; s5, a corresponding brake caliper type is selected through a software interface of the control system, and sealing performance test parameters are set; s6, starting the hydraulic sealing detection tool, carrying out a pressurization test on the brake caliper, and shooting the test process through an image acquisition module; s7, the control system collects and displays test data in real time, and automatically generates a test result report after the test is completed; and S8, judging whether the sealing performance of the brake calipers is qualified or not according to the test result report.

The invention discloses a universal hydraulic sealing element reliability test platform, system and method, and the test platform comprises a hydraulic pump station which is connected with a hydraulic machine through a hydraulic pipeline, and the hydraulic pump station is provided with a first pressure adjustment unit, a first flow adjustment unit and a temperature adjustment unit. And the display and control console is respectively connected with the hydraulic pump station, the hydraulic machine and the hydraulic pipeline through cables, and the display and control console is provided with a stroke control unit, a temperature control unit, a pressure control unit and a speed control unit. And a displacement sensor is arranged on a piston rod of the hydraulic machine. And the hydraulic pipeline is connected with the hydraulic pump station and the hydraulic machine, and a second pressure adjusting unit and a second flow adjusting unit are arranged on the hydraulic pipeline. According to the invention, the reliability test problem of hydraulic sealing elements with series sizes under multiple factors such as oil medium, movement speed, environment temperature, oil pressure and large stroke is solved, and the reliability of the hydraulic sealing elements under different factor conditions can be effectively tested.

The invention relates to the technical field of oil exploitation downhole tools, in particular to a spherical gyro shock absorber, and aims to solve the technical problems that the shock absorption effect is reduced and the equipment performance is damaged due to the fact that a spring and a sealing piece are aged because the spherical gyro shock absorber is difficult to adapt to a complex downhole environment in the prior art. The spherical gyroscope shock absorber comprises a shell and a shock absorption component, wherein the shock absorption component comprises a spherical gyroscope and a gravity adjusting assembly. The spherical gyroscope is rotationally connected to the gravity adjusting assembly. The pumped drilling fluid can drive the spherical gyroscope to rotate along a fixed axis. According to the spherical gyroscope shock absorber, the vibration effect is counteracted through the fixed shaft stability generated when the spherical gyroscope rotates at a high speed, quick-wear parts such as mechanical springs or hydraulic sealing parts are not used, and the risk that the shock absorption performance is damaged due to the fact that the parts are aged and fail when used in the underground environment is avoided. The technical problems that due to the fact that an existing shock absorber is difficult to adapt to the complex underground environment, a spring and a sealing piece are aged, the shock absorption effect is reduced, and then the equipment performance is damaged are solved.

The utility model discloses a hydraulic unblocking packer, which relates to the technical field of oil and gas exploitation equipment, and comprises a packing component, an outer sheath, a transportation component and a pipeline transportation component, the inner wall of the outer sheath is fixedly provided with a hydraulic sealing piece, the surface of the outer sheath is provided with a storage groove, and the pipeline transportation piece is arranged in the packing component. A feeding piece is fixed to the top of the pipeline conveying piece, and a fracturing jetting piece is fixed to the surface of the pipeline conveying piece. The device has the advantages that through cooperation of the second feeding pipe, the hollow pipe, the oil and gas conveying pipe, the annular spraying pipe and the pressurizing spraying head, the fluid conveying purity and the working efficiency are remarkably improved, the problems of cross contamination and conveying disorder are effectively solved, the chemical stability of different media is guaranteed, and the working efficiency is improved. And meanwhile, efficient flow dividing control in a limited space is achieved, and the safety of oil and gas exploitation and the process reliability are greatly improved.

The present application relates to a kind of impact device and its control method and engineering machinery and its operation method, belong to the technical field of impact operation machinery such as impact breaking hammer, rock drilling, pile driving, deep-sea pile driving, dynamic compaction, metal forming etc..The existing problems of impact device, such as cylinder piston easy to be damaged, hydraulic impact of emptying, piston and cylinder wear and tear, etc.are solved.The main fixed connecting seat for connecting carrier, ram, hydraulic cylinder and ram guide part connected with the main fixed connecting seat are included, the cylinder body of hydraulic cylinder is connected with the main fixed connecting seat, and the piston of hydraulic cylinder is slidingly installed in the cylinder body;Ram is located outside the cylinder body, ram guide part is used for axially guiding and radially limiting ram, piston rod is used for driving ram to do axial reciprocating impact motion along ram guide part, and ram does not bear the hydraulic seal of hydraulic cylinder.The present application is used for impact breaking hammer, rock drilling, pile driving, deep-sea pile driving, dynamic compaction and metal forming etc.impact operation.

The invention provides an autonomous leveling system and method for an underwater base platform. The autonomous leveling system for the underwater base platform comprises a hydraulic control module, hydraulic telescopic supporting legs, an inertial navigation module and an autonomous leveling master control module. The hydraulic control module comprises a hydraulic sealed cabin and an external pressure compensation device, the hydraulic telescopic supporting legs are provided with displacement and pressure sensors, the inertial navigation module feeds back platform attitude data, and the autonomous leveling master control module achieves data interaction and instruction issuing through an industrial personal computer and a switch. According to the method, a platform coordinate system is established, front and back coordinate changes of the base are combined, the expansion amount of the supporting legs is calculated through a rotation translation matrix, and the state estimation precision is improved through adaptive robust control until the platform meets the angle, pressure and stability conditions. According to the invention, autonomous leveling of the unmanned underwater vehicle recovery platform under different working conditions can be realized, and stable docking of the unmanned underwater vehicle is ensured.

A universal closure device for drain plugs for washbasins, bidets, bathtubs, showers and kitchen sinks, the universal closure device comprising: an opening and closing mechanism having a hollow central body adapted to be secured to an associated drain plug; and a hollow accommodating body coaxial with the central body and axially movable in a vertical direction relative to the central body by means of a bouncing device to stably turn from an open or raised configuration to a closed or lowered configuration; an adapter mechanically connected to the containment body of the opening and closing mechanism and externally equipped with an annular gasket configured to form a hydraulic seal against an inner peripheral edge of a drain plug of an associated washbowl, bidet, bathtub, shower and kitchen sink in a closed configuration. The device also includes a cap that is removably associated with the adapter and is located on a side opposite the opening and closing mechanism to form a top cover for the adapter.

The utility model discloses a multi-stage sealing hydraulic sealing element which comprises a multi-stage sealing outer base ring, an inner attaching sealing ring is embedded in the middle of the inner side of the multi-stage sealing outer base ring, a supporting inner ring is embedded in the middle of the interior of the multi-stage sealing outer base ring, and an outer attaching sealing ring is embedded in the middle of the outer side of the multi-stage sealing outer base ring. According to the multi-stage sealing structure, the multi-stage sealing outer base ring, the inner attaching sealing ring and the outer attaching sealing ring are arranged, the multi-stage sealing outer base ring serves as a main body frame, the inner attaching sealing ring and the outer attaching sealing ring conduct sealing from the inner side and the outer side respectively, multiple sealing defensive lines are formed, and the sealing effect is good. The multi-stage sealing structure is simpler and lower in cost, and the inner attaching sealing ring and the outer attaching sealing ring can be conveniently replaced.

The present application relates to the well logging fishing is used closed fishing device, especially relates to a kind of injection well closed fishing wellhead device.The device includes wellhead sealing locking gate, variable-diameter positioning fishing short circuit and hydraulic sealing short circuit;Wellhead sealing locking gate includes main body, sealing clamping elastic gate, gate hand wheel;The upper end of main body is connected to blowout preventer, and its lower end is connected to hydraulic sealing short circuit;Variable-diameter positioning fishing short circuit includes heavy rod connector, variable-diameter positioning short circuit, fishing head;Heavy rod connector connects variable-diameter positioning short circuit;Variable-diameter positioning short circuit can be detachably connected to fishing head;Hydraulic sealing short circuit includes: steel sleeve, rubber tube, pressurizing connector, first piston, second piston and spring;Injection well closed fishing wellhead device provided by the present application maximizes the success rate of fishing, meets the requirements of safety and environmental protection standards, realizes the goal of zero overflow and zero pollution on site.

The application relates to the technical field of butterfly valves, in particular to a manual butterfly valve with a hydraulic sealing structure, which comprises a butterfly valve body, a fluid channel in the butterfly valve body is blocked by cooperation of a hard ring body and a butterfly plate rotatable in the hard ring body, the hard ring body is fixed on the inner wall of the fluid channel of the butterfly valve body, a valve rod is arranged in the butterfly valve body to drive the butterfly plate to rotate, the butterfly plate comprises a disc-shaped butterfly plate eccentrically fixed on one side of the valve rod, a soft ring plate and a hard ring cylinder movably sleeved outside the disc-shaped butterfly plate, a door disc arranged on the disc-shaped butterfly plate and facing the fluid, a core rod axially movable at the position of the axis in the valve rod and a pressure-changing ring arranged on the disc-shaped butterfly plate and facing away from the fluid, the hard ring cylinder moves, the hard ring cylinder and the disc-shaped butterfly plate cooperate to clamp the soft ring plate, the soft ring plate is gradually flattened, the contact pressure between the periphery of the soft ring plate and the hard ring body is increased, and the hydraulic sealing performance of the butterfly valve is improved.

The invention relates to the technical field of slurry pump control valves, and discloses a hydraulic flat plate type slurry pump control valve which comprises a control valve body, an extension cover, a gate plate, an extension valve body, a valve deck, an oil cylinder, a piston and a hydraulic electric cabinet. The valve cover is mounted at the upper end of the extending valve body through a bolt; the piston is arranged in the oil cylinder, the gate plate is installed at the bottom of the piston and downwards penetrates through and is connected with the valve deck, the extending valve body, the control valve body and the extending cover, and multiple sets of hydraulic sealing structures are arranged at the two ends of the inner side of the extending valve body and the two ends of the inner side of the extending cover. The inner side end of the hydraulic electric cabinet is connected with a cylinder cover oil pipe and a cylinder base oil pipe, and the hydraulic electric cabinet is connected to the side portion of the oil cylinder and the outer end of the hydraulic sealing structure through oil pipes. By means of the design of multiple sealing structures, the sealing performance of the valve is greatly improved, leakage of slag slurry media can be effectively prevented, pollution to the environment and corrosion to equipment are reduced, and multiple protection barriers are formed.

The utility model provides hydraulic sealing piece multistation detection platform relates to sealing piece detection platform technical field, including work bench, support block and slide rail, the back side symmetry fixed connection of work bench top has the slide rail, the top of slide rail is connected with the positioning block of sliding, one side of positioning block is equipped with the clamping mechanism, and the top of work bench is equipped with the sealing detection mechanism, the utility model places hydraulic sealing piece on the top of support block, two clamping blocks are connected with the output end of pneumatic cylinder as an organic whole through the connecting plate, and the output end of pneumatic cylinder can drive two clamping blocks to move to one side of hydraulic sealing piece, and connecting plate drives guide rod to move simultaneously, and guide rod extrudes positioning block through guide groove, drives positioning block to move to the other side of hydraulic sealing piece, and clamping block cooperates with positioning block and clamps the both sides of hydraulic sealing piece, fixes two hydraulic sealing pieces on the top of work bench, to solve the problem that single test station in the prior art can not check test test accuracy and the comparability of lower.

The utility model relates to the technical field of hydraulic seal, specifically disclose a kind of sealing failure detection device, including hydraulic actuator body, its side surface is equipped with shaft seal flange body, the lower end side surface of shaft seal flange body is fixedly connected with installation support plate, the side surface between the side surface of hydraulic actuator body and shaft seal flange body is fixedly installed with actuator seal, the side surface of shaft seal flange body is equipped with installation connecting cavity, the inner wall of installation connecting cavity is fixedly installed with sealing failure probe.The sealing failure detection device is provided with sealing failure probe and failure sensor electronic element, which realizes the identification of equipment seal failure before the leakage of hydraulic oil can be detected outside the equipment, helps equipment user to prevent a trouble in the bud, realizes safe production, identifies risk before risk occurs, helps to realize lean equipment maintenance, thereby effectively saves cost.

The invention relates to a rotary actuator. A rotary actuator includes a manifold block and a rotor assembly including a rotor shaft and a plurality of arcuate pistons attached to the rotor shaft, each arcuate piston curved at a set radial distance from the rotor shaft, and each piston attached to the rotor shaft via a crank arm. A pressure chamber assembly coupled to the manifold block defines a plurality of piston pressure chambers that receive and at least partially surround each arcuate piston, including a plurality of gland seals disposed adjacent an inlet of each piston pressure chamber to create a seal between an inner surface of the pressure chambers and an arcuate piston outer surface. Each gland seal includes an inner seal that engages a piston surface of the arcuate piston and a plurality of outer seals that engage an inner surface of the piston pressure chamber, thereby forming a hydraulic seal.