32results about How to "Guaranteed replaceability" patented technology

The invention discloses an energy dissipation body structure of an elevated single-column station. The energy dissipation body structure comprises energy dissipation pier studs, a bottom layer anti-buckling supporting frame, in-axillary additional anti-buckling supporting cantilever transfer girders and a two-layer shearing coupling beam eccentric supporting frame which are all used for providingadditional rigidity when the earthquake magnitude is smaller than or equal to the preset earthquake magnitude and enter a yield state from an elastic state to plastically deform so as to consume partof input energy of an earthquake independently or in freedom cooperation with one another when the earthquake magnitude is larger than the preset earthquake magnitude. The energy dissipation body structure is suitable for the elevated single-column station; for the same type of irregular structure, some energy dissipation sub-structure in the energy dissipation body structure can also be adopted in the similar anti-seismic weak link, and therefore the anti-seismic performance and after-disaster restorability of the energy dissipation body structure are improved, and the energy dissipation bodystructure has good popularization prospects.

The invention discloses a hydraulic type clamp used for machining antenna brackets of a tablet personal computer. The hydraulic type clamp comprises a left supporting seat, a right supporting seat, a fixing plate, a locating plate, a clamping head and a pressure mechanism; the two ends of the fixing plate are fixedly connected with the left supporting seat and the right supporting seat correspondingly; the locating plate is fixedly connected with the fixing plate; a hydraulic oil hole is formed in one side surface of the pressure mechanism; one face, provided with clamping teeth, of a rack faces an arc-shaped clamping claw, the arc-shaped clamping claw is installed on the lower surface of a movable plate, and the front end of the arc-shaped clamping claw is embedded in the clamping teeth of the rack; a vertical clamping groove is formed in the inner side surface of a sliding block, and the sliding block is connected with a guiding strip through the vertical clamping groove in a clamping mode and is fixedly connected with the rack; and the lower end of a limiting screw rod penetrates through a pushing block from top to bottom and then is embedded in a center through hole of a pushing rod of a top plate air cylinder, and the limiting screw rod is sleeved with a limiting nut. According to the hydraulic type clamp used for machining the antenna brackets of the tablet personal computer, the stroke of the top plate air cylinder can be limited by arranging a limiting stud and the limiting nut, so that the rising stoke of the movable plate is in accordance with need, each rising stroke of the movable plate is fixedly consistent, and the machining precision is ensured.

The invention relates to the field of monorail traffic engineering, and discloses a connection structure and method of a track beam and a shield segment. The connection structure comprises a pedestalarranged at the bottom of the track beam, two supports arranged on the pedestal separately, and a plurality of embedded members embedded in the shield segment; the two ends of the track beam are detachably connected with the two supports respectively; a plurality of pedestal main ribs are arranged in the pedestal, each pedestal main rib is provided with an extension part which extends out of the end, in butt joint with the shield segment, of the pedestal, and each extension part corresponds to one embedded member and is in threaded fit insertion connection with the corresponding embedded member. By means of the connection structure and method of the track beam and the shield segment, connection of the track beam and the shield segment can be realized, the requirements for strength, rigidity and stability under load transfer of a vehicle and the track beam are met, linear adjustment, maintenance and replacement of the track beam are facilitated, construction is convenient, and the construction cost is low.

The invention discloses a condenser cleaning device based on an impeller turbulent flow effect. The device consists of torsion spring tripods at two ends for fixing with the inner wall of a heat exchange pipe, and an impeller set in middle for reinforcing turbulent flow. The torsion spring tripods consist of cylinder bases and torsion springs; the torsion springs are mounted on outer bosses of the cylinder bases to form triangular structures with the same included angles; and impellers are mounted in inner bosses of the cylinder bases through shafts and bearings. The middle impeller set is formed by serially connecting multiple impellers by a shaft; and the shaft and the impellers are connected by fastening screws. The shaft consists of two sections; and the two sections of shaft are fixedly connected through a connecting shaft bolt. The shaft and the torsion spring tripods at two ends are connected by bearings. The device can realize online cleaning of a condenser, and is simple in structure, low in cost, high in stability, convenient to install and suitable for other tubular heat exchange equipment.

The invention provides a replacement structure of the existing bracket of a cantilever beam bridge and a construction method. The problem of further development of bracket crack diseases can be fundamentally solved, the cost can be saved, and popularization and implementation are facilitated. The replacement structure of the existing bracket of the cantilever beam bridge comprises an upper bracketend with the cantilever beam bridge and a lower bracket end with the cantilever beam bridge, a steel box beam bracket is installed at the lower bracket end through a high-strength pull rod anchoringsystem and anchoring bolts, a support body is installed on the steel box beam bracket, and the support body makes contact with the beam bottom of the upper bracket end and the beam bottom of the lowerbracket end.

The invention discloses a traction motor. The traction motor comprises a bearing outer oil seal, a bearing and a bearing inner oil seal, wherein the bearing outer oil seal, the bearing and the bearinginner oil seal are sequentially arranged in the axial direction, an outer oil seal oil storage chamber is formed in the bearing outer oil seal, and an inner oil seal oil storage chamber is formed inthe bearing inner oil seal. The traction motor further comprises an annular grease pocket, wherein the annular grease pocket comprises an annular groove which is coaxially formed with the bearing anda control piece which is used for driving the annular groove to move to be in contact with the bearing in the axial direction or move to be away from the bearing in the axial direction; the annular groove is arranged in the outer oil seal oil storage chamber or the inner oil seal oil storage chamber; the end, close to the bearing, of the annular groove in the axial direction is open; the end, awayfrom the bearing, of the annular groove in the axial direction is sealed, and a grease supplement opening is formed in the side, close to the annular grease pocket, of the bearing. Old grease in thebearing of the traction motor can be completely replaced during grease supplement maintenance. The invention further discloses a rail vehicle comprising the traction motor, wherein the old lubricatinggrease in the bearing of the traction motor can be completely replaced during grease supplement maintenance.

The invention discloses a coal mining machine traveling wheel bearing convenient to maintain. The inner ring of the coal mining machine traveling wheel bearing is connected with a traveling rotating shaft in an axial limiting and radial limiting mode, and the inner ring of the coal mining machine traveling wheel bearing and the traveling rotating shaft are arranged in a clamped mode, so that the bearing can be conveniently disassembled, and the maintenance and replacement capacity is improved. The invention further provides a convenient-to-disassemble mounting mechanism for the coal mining machine traveling wheel bearing convenient to maintain. The convenient-to-disassemble mounting mechanism can effectively guarantee the mounting convenience and the replacement performance of the bearing,meanwhile, even if a bearing seat is damaged, the bearing seat is convenient to replace, the modular performance is guaranteed, the maintenance performance of a coal mining machine is effectively improved, and the maintenance cost of the coal mining machine is reduced.

The invention discloses a clamping fixture for ultra-thin mobile phone vibration motor machining. The clamping fixture comprises a left support, a right support, a fixed plate, a positioning plate, clamping heads and a pressure mechanism; the clamping heads are located on the side away from the center, stepped holes running through avoidance through holes are formed in the surfaces of the two sides of the fixed plate, hydraulic oil holes are communicated with T-shaped blind holes respectively, a movable plate is provided with at least two mounting through holes, at least two guide columns penetrate through the mounting through holes of the movable plate, the upper ends of the guide columns are connected with the fixed plate, the lower ends of the guide columns are connected with a left base plate of the left support and a right base plate of the right support respectively, self-locking cylinders are arranged on the side surface of the movable plate, the self-locking cylinders are fixedly installed on the outer side surfaces of connecting blocks, and piston rods of the self-locking cylinders penetrate through the connecting blocks, are located below the movable plate and are in contact connection with the outer side surfaces of the guide columns. Accordingly, by means of a spring on the piston rod, the pressure of the clamping head at the tail end of the piston rod has certain toughness, elastic compression on a to-be-machined material is achieved, the phenomenon that the to-be-machined material is pressed to be damaged is avoided, and the quality of products is guaranteed.

The invention discloses a hydraulic clamping fixture for intelligent displayer accessory machining. The hydraulic clamping fixture comprises a left support, a right support, a fixed plate, a positioning plate, a clamping head and a pressure mechanism; the two ends of the fixed plate are fixedly connected with the left support and the right support respectively, the positioning plate is fixedly connected with the fixed plate, the two side surfaces of the fixed plate are provided with stepped holes communicated with avoidance through holes, hydraulic oil holes are connected with oil pumps through hydraulic oil tubes, two guide pillars located on the same side in four guide pillars are anti-skid guide columns, a trapezoidal section is arranged on the side, close to the exterior, of each anti-skid guide column, the upper portions of connecting blocks are fixedly connected with the side surface of a movable plate, self-locking cylinders are fixedly installed on the outer side surfaces of the connecting blocks, and piston rods of the self-locking cylinders penetrate through the connecting blocks, are located on the lower portion of the movable plate and are in contact connection with theouter side surface of the guide columns. Accordingly, by means of the anti-skid guide columns and the trapezoidal sections, the lower portions of the anti-skid guide columns are thicker than the upper portions of the anti-skid guide columns, the movable plate can be clamped, gliding of the movable plate is prevented, the stability of a to-be-machined material in the machining process is guaranteed, and the machining precision is guaranteed.

The invention relates to an open-end spinning rotor (1 a, 1 b, 1 c) comprising a rotor shaft (4a, 4b, 4c), a rotor cup (2, 2c) and a coupling device (3a, 3b, 3c). The rotor shaft (4a, 4b, 4c) and the rotor cup (2, 2c) are releasbly connected together by means of the coupling device (3a, 3b, 3c). The coupling device (3a, 3b, 3c) is provided with a locking means (5, 6) for the axial arresting of the rotor cup (2, 2c), a transmission means (9, 10, 11, 12) for positively transmitting a torque from the rotor shaft (4a, 4b, 4c) to the rotor cup (2, 2c), and a centering means used for aligning the rotor shaft (4a, 4b, 4c) with the rotor cup (2, 2c). The centering means comprises a cylindrical bore part (8, 8C) and a corresponding guide extension part (7, 7c) to be guided into the cylindrical bore part (8, 8C). According to the invention, the cylindrical bore part (8, 8C) and the guide extension part (7, 7c) are in clearance fit with each other. The centerin means comprises elastic arrangements (13, 14, 15B, 15c) arranged between the cylindrical bore part (8, 8C) and the guide extension part (7, 7c).

The invention discloses a hydraulic clamping fixture for intelligent displayer accessory machining. The hydraulic clamping fixture comprises a left support, a right support, a fixed plate, a positioning plate, clamping heads and pressure mechanisms; the two ends of the fixed plate are fixedly connected with the left support and the right support respectively, the positioning plate is fixedly connected with the fixed plate, the clamping heads are located on the side away from the center, T-shaped blind holes corresponding to stepped holes are uniformly formed in the inner side surfaces of the pressure mechanisms, each hydraulic oil hole is connected with an oil pump through a hydraulic oil tube, the lower ends of guide pillars are connected with a left substrate of the left support and a right substrate of the right support respectively, two guide pillars located on the same side in the four guide pillars are anti-skid guide columns, a trapezoidal section is arranged on the side, closeto the exterior, of each anti-skid guide column, an included angle exists between each trapezoidal section and a vertical face, and the upper bottom of the trapezoidal section is shorter than the lower bottom. Accordingly, by means of knurling, the frictional force of the anti-skid guide columns is increased, the phenomenon that a movable plate slides downwards is effectively prevented, the stability of a to-be-machined material in the machining process is guaranteed, and the machining precision is guaranteed.

The invention relates to a spring plate for supporting a vehicle support spring, having a surface (1), which faces the vehicle support spring, and at least one supporting point (2), wherein the springplate has a region (3) which is set out from the surface (1) in the direction of the vehicle support spring and which forms the supporting point (2), and wherein a sheet metal element (4) acting as acorrosion protection element is fastened to the set-out region (3) and is in contact with the vehicle support spring in all operating states.

The invention discloses a hydraulic fixed fixture for ultra-thin fan metal piece machining. The hydraulic fixed fixture comprises a left support, a right support, a fixed plate, a positioning plate, clamping heads and pressure mechanisms; the two ends of the fixed plate are fixedly connected with the left support and the right support respectively, the positioning plate is fixedly connected with the fixed plate, each oil seal sleeves a piston rod and is located between a flange portion and a switching surface of a T-shaped blind hole, at least two mounting through holes are formed in a movableplate, each telescopic cylinder is fixedly connected with the rear end surface of a shell, a piston rod of each telescopic cylinder penetrates through a connecting hole of the shell, each end, connected with a connecting rod, of a connecting block is provided with a connecting groove, a T-shaped part of each connecting rod is embedded into the corresponding connecting groove, and the flange of each T-shaped part is clamped with a clamping part of the corresponding connecting groove. According to the fixture, by arranging a telescopic mechanism, after all ejection operations are completed, anarc-shaped clamping jaw is pulled down backwards through the telescopic cylinder, so that a movable plate falls to the bottom surface, and loading is conducted again for the next round of machining;the structure is simple, operation is conducted conveniently and automatically, manpower and time are saved, and the work efficiency is improved.

The invention provides a device for automatically replacing edge clamping strips and expansion strips of a cathode plate. The device comprises a feeding platform, a dismounting platform, an edge clamping strip mounting platform and an expansion strip mounting platform, wherein the platforms are connected through a conveyor belt and communicate with a controller; the top surface of the dismountingplatform is provided with a dismounting fixing frame, a pressing block and a dismounting mechanism; and the dismounting mechanism is arranged below the dismounting fixing frame and comprises a plurality of dismounting claws, and the two sides of the edge clamping strip mounting platform are provided with positioning and clamping mechanisms, feeding mechanisms, taking mechanisms, CCD cameras and mounting mechanisms. The taking mechanisms are provided with turnover taking claws, the turnover adjustment can be carried out before and after taking through matching with the CCD cameras, consequently, the consistency of the orientation of the edge clamping strips is guaranteed, and one ends of the edge clamping strips are firstly pressed into a stainless steel plate through matching of an edge clamping strip opening block and a pressing roller, and then are sequentially pressed into the cathode plate by the pressing roller, so that the installation of the edge clamping strips is achieved, anddamage to the edge clamping strips is avoided without knocking, and the stability in the electrolysis process is guaranteed.

The invention relates to an exhalation acquisition device for liver disease patients and a photo-acoustic detection method for ammonia and methyl mercaptan in exhalations, and belongs to the field of exhalation acquisition in order to solve the problems that a mask can be connected to or used by different exhalation acquisition devices, ensures sanitary requirements, and achieves the front-end filtering of exhalation acquisition. The exhalation acquisition device for liver disease patients includes a breathing mask and an exhalation acquisition device, wherein the breathing mask is an ear-hooked mask; the front surface of the mask has an air outlet; two air inlet valves are arranged on both sides of the air outlet; the mask is made of a polyvinyl chloride material; the air outlet is connected to a first air pipeline; the first air pipeline is provided with an one-way valve; the one-way valve is located inside a mask end; the first air pipeline is provided therein with a molecular sieve; the first air pipeline is in communication with the second air pipeline, and a joint is sealed by a spiral fixing hoop; and the second air pipeline is in communication with the exhalation acquisition device, and a joint is sealed by a spiral fixing hoop. The exhalation acquisition device for liver disease patients can be quickly replaced and ensures the sanitary requirements.

The invention discloses a coiler. The coiler comprises a fixing shaft, a roller and a guide wheel, wherein the roller is used for winding a pipeline, the guide wheel is used for winding a steel wire rope, the guide wheel and the roller are both rotatably arranged on the fixing shaft in a sleeve mode, and the guide wheel and the roller are detachably connected. According to the coiler, the guide wheel and the roller can be connected in a detachable manner and can be separated, so that the relative fixation of the guide wheel and the roller is guaranteed, and the guide wheel and the roller can rotate synchronously; the replacement performance of the guide wheel is also ensured, so that replacement with a new guide wheel is only needed after the local guide wheel is damaged, the whole rollerdoes not need to be replaced, the material cost is saved, the labor intensity is reduced, and the maintenance time is shortened; and in a preferred embodiment, the coiler is provided with a top anti-collision structure, and in another embodiment, the coiler can prevent the steel wire rope from falling off the guide wheel. The invention further discloses a drill jumbo with the coiler.