33results about How to "Protective seal" patented technology

The invention relates to a continuous annealing furnace bottom cover plate quick disassembling and assembling device and disassembling and assembling method, and belongs to the technical field of cold-rolling strip steel production equipment in the metallurgical industry. According to the technical scheme, the periphery of a furnace shell (15) is fixedly and uniformly provided with four clamping grooves (14), each clamping groove (14) is provided with a corresponding fastening bolt (5), a corresponding screw of each fastening bolt (5) is in threaded connection with the corresponding clamping groove (14), hooks (6) are arranged on the bolt heads of the fastening bolts (5) correspondingly, a corresponding guide chain (2) is hung on the corresponding hook (6) of each fastening bolt (5), the lower ends of the guide chains (2) are connected to a fixing support (3), the fixing support (3) is fixed to a furnace bottom cover plate (1), and a reverse jackscrew (9) is in threaded connection withthe furnace shell (15) close to the furnace bottom cover plate (1). The device has the beneficial effects that the furnace bottom cover plate can be quickly disassembled and assembled, the time losscaused by furnace bottom cover plate disassembling and assembling is reduced, and the accident or maintenance treating time is shortened.

The invention relates to excavating and mining of large-slope coal mine tunnels, in particular to a forced lubrication system for the cutting speed reducer of a tunneller and solves the problem that when a traditional tunneller works at a slope of above 23 degrees, the bearing at the high-speed end or the low-speed end of the cutting speed reducer cannot be lubricated. Through the adoption of the forced lubrication system, the bearing at the high-speed end or the low-speed end of the cutting speed reducer can be lubricated above the level of lubricating oil. In a large-slope tunnel, when the tunneller goes up a slope to cut a roof, the bearing at the low-speed end of the cutting speed reducer is below the level of lubricating oil and thus cannot be lubricated; when the tunneller goes down the slope and the cutting head performs bottom sweeping, the bearing at the high-speed end of the cutting speed reducer is below the level of the lubricating oil and thus cannot be lubricated. A lubricating pump is driven by the hydraulic motor of a hydraulic system; when a cutting arm goes up and down, or rotates, lubricating oil at the bottom of the cutting speed reducer is pumped to the bearing cavities at the high-speed end and the low-speed end of the cutting speed reducer so as to provide forced lubrication for the bearings at the high-speed end and the low-speed end.

The present invention relates to a coupling device, in particular to a waterproof coupling device, comprising an inserter, a coupler, a sealing cover, a data bridge module, a live wire bridge module and a neutral bridge module, and the inserter is provided with a live wire insert The input terminal, the neutral line insertion terminal, the data insertion terminal and the insulating layer covering the outer surface of the live wire insertion terminal, the neutral line insertion terminal and the data insertion terminal; the coupler is divided into a coupling chamber and a sealed cavity The external matching thread outside the chamber and the sealing chamber, the coupling chamber and the sealing chamber are separated by a barrier layer provided in the coupler, and the barrier layer is provided with a live wire coupling sleeve, a neutral wire coupling sleeve, a data Coupling sleeve, data through hole, live line through hole, neutral line through hole and sliding sleeve cooperate with the extension sleeve; the invention can be used immediately after insertion, one step in place, with anti-shock design; has multiple waterproof effects, can be used in water, and adopts Modular design for easy repair and replacement parts.

The invention discloses a hydraulic continuous drawing machine. The hydraulic continuous drawing machine comprises a framework, a left trolley, a right trolley, two left drawing hydraulic cylinders and two right drawing hydraulic cylinders, wherein the framework is of a vertical structure and is provided with a feeding channel and a discharging channel; the feeding channel is provided with a product drawing mould; each left drawing hydraulic cylinder body is mounted on the left part of the framework; each right drawing hydraulic cylinder body is mounted on the right part of the framework; the left trolley is internally provided with a left clamp; each of the upper part and the lower part of the left clamp is in a wedged shape and is in sliding fit with the left trolley; the left trolley is provided with a left pressing hydraulic cylinder; the right trolley is internally provided with a right clamp; each of the upper part and the lower part of the right clamp is in a wedged shape and is in the sliding fit with the right trolley; the right trolley is provided with a right pressing hydraulic cylinder; the framework is internally provided with public guide rails. According to the hydraulic continuous drawing machine, the framework is of a vertical structure, so that a product is vertically clamped by the left clamp and the right clamp and the machining quality is guaranteed.

The application discloses a continuous drying device for iron-nickel battery slurry belt, which includes a drying furnace, the slurry belt runs through the drying furnace, and a protective gas equalization room is arranged at the intersection of the drying furnace and the slurry belt; the gas equalization room is connected with the drying furnace The dry furnace is connected and equipped with a circulating fan. The pulp belt runs through the equalization chamber, and an air-tight cavity is provided at the intersection of the equalization chamber and the pulp belt. The sealed cavity communicates with the outside world and is provided with a sealing fan. And a drying method based on the above-mentioned drying device. When the circulating fan is working, the protective gas passes through the circulation pipe, the equalization chamber, the gap between the drying furnace and the pulp belt in sequence from the drying furnace chamber, and then enters the drying furnace again. Dry the furnace chamber to create a protective gas circulation. The object of the present invention is to provide a continuous drying device and method for iron-nickel battery slurry belts in order to solve the problem that the existing drying ovens cannot meet the requirements of continuous drying of battery slurry belts in a protective gas. The drying device and method can continuously dry the battery slurry in the protective gas.

The invention discloses a guide vane angle regulating device for submersible pumps, which is convenient to regulate the guide vane angle. The guide vane angle regulating device comprises a crank, a driven ring, a driving ring and a drive plate, wherein the driven ring and the driving ring are bonded and connected, one end of the crank is connected with the driven ring in a rotating mode, the other end of the crank is used for connecting and regulating the guide vane angle, a connecting mechanism for connecting the driving ring and the drive plate is arranged between the driving ring and the drive plate, and the drive plate is connected with a drive link. The guide vane angle regulating device can be used for regulating underground or underwater guide vane angle by ground operation. In theinvention, by means of the triangular drive plate and a connecting link device, the guide vane can be freely driven to rotate clockwise or anticlockwise. Meanwhile, the application of the crank ensures that the guide vane angle can be greatly changed only when the driving ring and the driven ring rotate by small distance.

The invention relates to a bench vise with the biaxial position capable of being adjusted and controlled. An arc-shaped groove on the upper portion of a machine base matches a spherical shell, and a ball bearing is arranged at the fit connection between the arc-shaped groove on the upper portion of the machine base and the spherical housing; the spherical housing is internally provided with a maintransmission shaft arranged horizontally, and the main transmission shaft is provided with a small bevel gear and a spur gear; the front and rear ends of the main transmission shaft are both connected with the spherical housing through two bearing groups, and the main transmission shaft can slide in the axial direction of the bearing groups; the spur gear on the main transmission shaft is matchedwith an inner gear ring at the interior of the right end of the spherical housing; a sealing cover on the upper portion of the spherical housing is connected with a fixture base through a plane bearing, and a fixture assembly is mounted on the fixture base; the bottom of the fixture base is connected with a large bevel gear through a vertical rotating shaft, and the large bevel gear is matched with the small bevel gear on the main transmission shaft; and the main transmission shaft is connected with a driving motor assembly through a second coupling, a lead screw and a nut assembly are installed on the lower portion of the driving motor assembly, and the lead screw and the nut assembly are connected with a feeding system through a first coupling.

The invention belongs to discharge valves for dissimilar materials, and particularly relates to a discharge valve for a slurry bed residual oil hydrogenation device. A discharge valve for a slurry bed residual oil hydrogenation device comprises a valve body communicated with a main pipeline, a valve rod assembly is arranged in the valve body, the valve rod assembly is connected with a manual device at the top end and can be driven by the manual device to move up and down, and the valve body is provided with a hard alloy sealing face at the bottom of a middle cavity channel. A flushing opening is formed in the position, close to the middle cavity channel, of the Y-shaped outlet channel of the valve body, and a Y-shaped flushing valve is arranged at the position. The invention has the advantages that: the medium flows smoothly without residence; hard particles in the medium are prevented from damaging the plunger; medium residual oil is prevented from entering the filler; and reliable sealing of the plunger is ensured.

The invention discloses a hydraulic control system for a quick opening cylinder and an upper roll balance cylinder of a steel tube straightening machine. The hydraulic control system comprises a quick opening cylinder hydraulic control loop and an upper roll balance cylinder hydraulic control loop, wherein the quick opening cylinder hydraulic control loop comprises a high-low pressure oil source selecting device, an oil inlet throttling device, a high-pressure compensating device and an oil return throttling device; the upper roll balance cylinder hydraulic control loop comprises a first electromagnetic reserving valve connected to a rod cavity of the upper roll balance cylinder, an energy storage assembly and a three-way pressure relief valve which is selectively communicated to the rod cavity and a high-pressure oil source. The hydraulic control system for the quick opening cylinder and the upper roll balance cylinder of the steel tube straightening machine can effectively eliminate hydraulic impact of the quick opening cylinder, can prolong the service life of the quick opening cylinder, saves energy and reduces consumption, saves cost and effectively protects sealing of the quick opening cylinder.

The invention discloses a control method for achieving starting and stopping of an oil pump motor through opening and closing of a grab bucket. The positions of coils of three-position four-way solenoid valve sets for hydraulic system control are connected with time-delay relays in parallel, and outage time-delay contacts of the time-delay relays are connected into a starting-stopping loop of theoil pump motor in series. The starting and stopping of an oil pump are controlled through the opening and closing of the grab bucket. According to the control method, due to the fact that the time-delay relays are additionally arranged, the starting and stopping of the oil pump motor and the opening and closing of the grab bucket are interlocked, and the working time of the oil pump is shortened;and electric energy is saved, the hydraulic oil temperature is controlled, hydraulic system seal is protected, and the service life of hydraulic components is prolonged.

The invention relates to a plugboard, in particular to a safety sealing coupling plugboard, which comprises a plugboard shell and one or more detachable waterproof sealing coupling devices, and is characterized in that each detachable waterproof sealing coupling device consists of an embedded installation coupling kit and an embedded device; the embedded installation coupling kit is composed of acoupler and a sealing cover. The coupler is composed of a ground wire bridging module, a live wire bridging module and a zero wire bridging module. The plugboard can be used after being inserted in one step, and has an anti-electric shock design; the waterproof device has multiple waterproof effects, can be used in water, adopts a modular design, and is convenient to maintain and replace parts.

The invention relates to a forging machine with return cylinder anti-unbalance-loading mechanisms and an assembling method and a using method of the forging machine. The forging machine comprises a main machine frame, an upper fixed beam, a pre-stressed pull rod, a movable beam, a return cylinder, a plunger piston cylinder, a guiding device, a mobile working table, a transverse moving anvil, an upper anvil and a lower anvil. The return cylinder comprises a return cylinder body and a return cylinder plunger piston, wherein the return cylinder body and the return cylinder plunger piston are matched with each other. The anti-unbalance-loading mechanisms are respectively arranged between the upper end of the return cylinder plunger piston and the upper fixed beam and between the lower end of the return cylinder body and the main machine frame, wherein spherical surfaces of the anti-unbalance-loading mechanisms contact each other, and the anti-unbalance-loading mechanisms are displaced relatively. The forging machine with the return cylinder anti-unbalance-loading mechanisms and the assembling method and the using method of the forging machine have the advantages that the upper end and the lower end of the return cylinder are both provided with the anti-unbalance-loading mechanisms, and therefore when the return cylinder receives unbalance loading, the return cylinder plunger piston is guaranteed to move freely and cannot suppress strength, and the service life of the return cylinder plunger piston is prolonged. The return cylinder plunger piston sealing and each part of sealing inside an inner cavity are protected, and the service life of a sealing element and a copper bush is prolonged. The anti-unbalance-loading capacity of a return cylinder plunger piston structure is strengthened, and the stationarity of forging machine running is strengthened.

The invention provides a structure for preventing an oil cylinder from unbalance loading, and relates to the technical field of hydraulic oil cylinders. The oil cylinder is fixed to a base and can push a load to reciprocate, the structure for preventing the oil cylinder from unbalance loading comprises a first unbalance loading prevention assembly and a second unbalance loading prevention assembly, the first unbalance loading prevention assembly is arranged between the oil cylinder and the base, and the second unbalance loading prevention assembly is arranged between the oil cylinder and the load. The structure for preventing the oil cylinder from unbalance loading can effectively prevent the oil cylinder from unbalance loading, and oil cylinder sealing is protected.

The invention discloses a forging machine with plunger type cylinder unbalance loading resistant structures. The forging machine with the plunger type unbalance loading resistant structures comprises a main rack, an upper fixed beam, a prestress draw bar, a movable cross beam, a plunger type cylinder, a guide device and a movable workbench, and is characterized in that the plunger in the plunger type cylinder is fixed on the upper fixed cross beam through a T-shaped draw bar in a hanging mode, and unbalance loading resistance structures with spherical surfaces contacted with each other and shifting relatively are arranged between the upper end of the upper fixed beam and the tail end of the T-shaped draw bar and between the bottom portion of the plunger and the T-shaped head of the T-shaped draw bar. The forging machine with the plunger type cylinder unbalance loading resistance structures has the advantages that when a main cylinder bears unbalance loading force, the two unbalance loading structures with the spherical surfaces contacted with each other and shifting relatively can eliminate the unbalance loading acting on the cylinder body of the plunger type cylinder, the plunger of the plunger type cylinder is enabled not to be blocked, the service life of the plunger is prolonged, a seal is protected, the service lives of the seal and a copper sleeve are prolonged, the unbalance loading capacity of the plunger type cylinder is enhanced, and working efficiency is improved.

The invention discloses a self-priming water pump with a filter device. The self-priming water pump comprises a water pump body, wherein a water inlet is formed in one side of the water pump body, and a water outlet is formed in the top of the water pump body; the filter device is arranged on one side of the water inlet and comprises a filter cover, and a sealing ring is arranged in the filter cover; a filter, a filter cup and a water outlet connecting piece are successively arranged at the bottom of the filter cover, and a buckling groove and a buckling hook are respectively arranged the bottom of the filter and the top of the filter cup and are matched with each other. As the self-priming water pump is provided with the filter cup, in the process that a worker cleans the filter, sand cannot drop out from the surface of the filter to enter an impeller again so as to damage a sealing piece, and the service life of the water pump is prolonged. The filter cup with a simple structure can effectively prevent sand from entering the impeller and protect the sealing of the water pump, and the service life of the self-priming water pump is prolonged.