32results about How to "No jumping phenomenon" patented technology

The invention relates to a steel wire sealing type smokeless pickling line. The pickling line comprises a wire inlet water curtain groove, at least one pickling groove and a wire outlet water curtain groove, wherein the wire inlet water curtain groove, the pickling groove and the wire outlet water curtain groove are arranged sequentially along a steel wire routing direction. The pickling line is characterized in that a wire inlet sealing device and a wire outlet sealing device are respectively arranged at two ends of the cover plate of the pickling groove, steel wires can penetrate through the wire inlet sealing device and the wire outlet sealing device, the wire inlet sealing device and the wire outlet sealing device can prevent pickling solutions in the pickling groove from volatilizing from two ends, a pickling working groove is arranged inside the pickling groove, a pickling solution chamber is arranged at the rear end of the pickling working groove and connected with a liquid outlet of a steam heating acid pump box through an acid inlet pipe, a liquid inlet of the steam heating acid pump box is communicated with the interior of the pickling groove through an acid drawing pipe, and the upper surface of the pickling working groove is provided with a plurality of turbulent flow retaining bars. The pickling line is ingenious and reasonable in structure, steel wires can work stably in the pickling solutions, a jumping phenomenon cannot occur, the cleaning effect is good, the acid consumption is low, and the pickling line is environment-friendly and beneficial to improvement of product quality.

The invention discloses an improved solar heat exchange water storage tank, which relates to a heat exchange water storage tank and solves the technical problem of flashover or sealing-off in the machining or transportation of the conventional water storage tank. The improved solar heat exchange water storage tank comprises a hollow tank body, and is characterized in that: the upper and lower ends of the tank body are provided with an upper end cover and a lower end cover respectively; the upper and lower end covers are inwards sunken and matched with the upper and lower surfaces of the tank body to form an upper cavity and a lower cavity respectively; the upper and lower cavities are communicated with each other through at least one heat exchange tube passing through the tank body; and each of the upper and lower end covers is provided with a connecting pipe orifice communicated with own cavity. In the improved solar heat exchange water storage tank, the arrangement of a fluid reservoir is canceled, and a heat transfer medium is diffused into vertical fixed heat exchange tubes which are highly stationary, thereby avoiding potential safety hazards such as the flashover, sealing-off and the like which may be caused in mounting or transportation in the tank body; and the improved solar heat exchange water storage tank is convenient to mount and low in cost.

The invention relates to the technical field of grinding equipment for tungsten steel rods, and discloses a cylindrical grinding equipment for tungsten steel rods, including a machine table, a grinding wheel frame, a grinding wheel, a guide wheel frame, a guide wheel, a fixed frame, plate, tungsten steel rod to be polished, the side of the machine table is fixedly connected with two positioning horizontal shafts located outside the guide wheel frame, and the two positioning horizontal shafts are provided with moving blocks, and the moving blocks can move laterally. The outer cylindrical grinding equipment for tungsten steel rods uses the limit roller to limit the position of the tungsten steel rods to be polished, so as to ensure that the tungsten steel rods will not jump when grinding, and ensure that the grinding parts are always in contact with the grinding wheel, effectively guaranteeing The grinding quality of the outer circle of the tungsten steel bar is improved, and at the same time, the cold water evenly flowing out of the water hole of the limit roller is used to cool down, so as to ensure that the tungsten steel bar is cooled evenly during grinding, and there will be no local overheating of the grinding wheel, which effectively improves the grinding wheel. service life.

The invention relates to a closed electrolytic pickling machine set which comprises an inlet wire water curtain groove, at least one electrolytic pickling grooves and an outlet wire water curtain groove which are arranged in sequence along the wiring direction of a steel wire. The closed electrolytic pickling machine set is characterized in that two ends of cover plates of the electrolytic pickling grooves are provided with inlet wire sealing devices and outlet wire sealing devices respectively, the inlet wire sealing devices and the outlet wire sealing devices can be penetrated by the steel wire, and can prevent pickling solutions in the electrolytic pickling grooves from escaping from two ends; positive work grooves and negative work grooves are arranged in the electrolytic pickling grooves, the steel wire penetrates above the positive work grooves and the negative work grooves, positive plates are mounted in positive work grooves, and negative plates are mounted in the negative work grooves; and the positive work grooves and the negative work grooves are connected with a liquid outlet of an acid pump box through an acid inlet pipe respectively, and a liquid inlet of the acid pump box is communicated with the interiors of the electrolytic pickling grooves through an acid pimping pipe. The closed electrolytic pickling machine set has the advantages of being ingenious and reasonable in structure, good in sealing performance, free of pickling solution leakage, and environment friendly.

The invention relates to a reticulated shell-annular truss frame-irregular-shaped combination column combined support spherical tank system capable of slightly moving. The system comprises combined spherical tanks, reticulated shell-annular truss frame-irregular-shaped combination column combined supports, a rubber ball-damper shock-absorbing energy consumption device, wherein annular truss frames are encircled outside the reticulated shells, and are connected with the irregularly-shaped combination columns; the combined spherical tanks are arranged on the reticulated shell-annular truss frame-irregularly-shaped combination column combined supports; the rubber ball-damper shock-absorbing energy consumption device is arranged between the reticulated shell pitch points and the combined spherical tanks; the rubber ball- damper shock-absorbing energy consumption device is composed of dampers and rubber balls; the rubber balls are arranged at one ends of the dampers; concave slide tracks are arranged on the outer walls of the combined spherical tanks; the rubber balls are positioned in the concave slide tracks; the other ends of the dampers are fixed with the pitch points of the reticulated shells; the irregularly-shaped combination columns are composed of solid-web section steel and reinforced concrete; the solid-web section steel is placed in the reinforced concrete; an L-shaped support seat is arranged at the top ends of the combination columns. The system can move slightly in any direction under the strong shock or the strong wind, and has excellent energy consumption shock-absorbing performance and wing resistance.

The invention provides a driving beam of a segmental turnout. The driving beam comprises a main beam body 9, a main beam upper flange plate 10, a main beam F-rail 1 located above the main beam upper flange plate 10, an adjusting rail 3, an F-rail mounting plate 2, a mounting plate 5 and an adjusting component 4. The adjusting rail 3 is used for flatly connecting the main beam F-rail 1 and a moving end butt beam F-rail 6 located above a moving end butt beam upper flange plate 8. The driving beam allows a turnout beam to be switched in place, with left-right and vertical degrees of freedom both limited, the moving end F-rail and a fixed end F-rail are flatly connected, and no leap occurs when a train passes by. Compared with the prior positioning techniques, the driving beam has the advantages that complex positioning connectors for use at the moving end of the F-rail of the turnout are omitted, a weak and fragile link is omitted, safety is improved at the premise of ensuring service performance; the whole turnout beam structure is simplified, fewer parts of fewer varieties are used, mounting is simplified, and manufacturing cost and construction cost are saved.

The invention discloses a rotational damping buffering lifting wheel which comprises a guide rail sectional material, a buffering rack device, a buffering gear and a lifting wheel body. The guide railsectional material is provided with the buffering rack device. The buffering rack device comprises a body providing a containing inner cavity for an elastic unit and a sliding part which forms pulling moving through the elastic unit, a rack part formed on the body or connected to the body, and a cover plate part. The buffering gear is arranged on the lifting wheel body, and the buffering gear ismatched with the rack part. The lifting wheel body is provided with a wheel and a protruding part, the wheel moves in the guide rail sectional material so that the protruding part can abut against thesliding part and the buffering gear can be engaged with the rack part for transmission to make the wheel decelerated slowly. The rotational damping buffering lifting wheel has the beneficial effectsthat the structure is simple, the manufacturing cost is low, the appearance is attractive and elegant, installation is convenient, deformation is not likely to be caused, the jumping phenomenon cannothappen to engaging transmission buffering, in addition, due to the fact that an elastic sliding block is additionally arranged for abutting, the buffering transmission action is stable. Thus, the rotational damping buffering lifting wheel is a product having excellent performance in economy efficiency and technicality.

The invention discloses a vertical force floating powder spreading scraper device for metal additive manufacturing, which solves the technical problems in the prior art that the scraper avoids surface defects in selected areas of laser sintering and spheroidizes bumps, and the main points of the technical scheme It includes a scraper bracket with an external drive source and a scraper connected between the scraper bracket and the powder bed. A floating knife holder is arranged on the scraper bracket near the scraper. The scraper is rotatably connected to the floating knife holder. When the sintering defect bump is reached, the floating knife holder drives the central axis of the upper end surface of the scraper to swing around the sintering defect bump, so that the scraper rotates to avoid the bump on the powder bed, and there is no direct collision between the scraper and the sintering defect bump. Cutting and other moving components that are destructive to the structure function eliminate the fatal defects of uneven powder spreading, loose powder bed, and backward transfer of defects in other forms of scraper powder spreading. The product yield rate is greatly improved, and the mechanism is simple and takes up space. Small technical effect.

The invention relates to a method for manufacturing a high-speed grinding bit used for processing precise small holes. The method comprises: a grinding wheel connecting part, a transition rod of carbide and a motor connecting part are assembled into a grinding wheel lengthening shaft; one end of the transition rod of carbide is connected with the motor connecting part through hot extrusion, whilethe other end is connected with the grinding wheel through welding; after manufacturing the grinding wheel lengthening shaft, the motor connecting part of the grinding wheel lengthening shaft is connected with the output end of a drive motor; and the grinding wheel connecting part is connected with the grinding wheel through a grinding wheel nail. The method has the advantages of improving the rigidity of the grinding wheel lengthening shaft and saving the resetting and balancing working procedure. The high-speed grinding bit manufactured by the method comprises the drive motor, the grinding wheel lengthening shaft, the grinding wheel nail and the grinding wheel; the grinding wheel lengthening shaft consists of the transition rod of carbide, the motor connecting part and the grinding wheel connecting part; and one end of the transition rod of carbide is welded with the grinding wheel connecting part, while the other end is connected with an accommodating hole of the transition rod on the motor connecting part through the hot extrusion. The high-speed grinding bit has the advantages of improving the grinding quality of the precise small holes and improving the grinding production efficiency.

The invention discloses an F-track movable end positioning and connection device for a medium-and-low-speed magnetic suspension turnout. The F-track movable end positioning and connection device comprises two sections of F-track movable ends which are symmetrical left and right. A movable hinged support is fixedly connected with the lower part of the rear end of each of the two sections of F-track movable ends which are symmetrical left and right; each movable hinged support consists of a pair of ear plates, an upper connection plate, a front side plate and a pin roll; the upper connection plate is fixedly connected with the upper ends of the pair of the ear plates and the lower part of the F-track movable end, and the front side plate is fixedly connected with the front end of the pair of the ear plates and the lower part of the upper connection plate; and the pair of the ear plates are inserted into two sides of an extension end of a turnouttrack web of the turnout and are hinged with two sides of the extension end of the turnouttrack web of the turnout through the pin roll, each front side plate is provided with an adjusting screw and the front end of the adjusting screw is pressed against the extension end of the turnouttrack web of the turnout. The left and right freedom degree of the F-track movable end positioning and connection device is limited on the premise that thevertical freedom degree of the device is limited, and the turnout is prevented from swinging left and right and jumping in a vertical direction.

The invention discloses a driving safety test system on a high-speed railway bridge under an earthquake, relates to the field of train safety performance testing, and includes a driving test system. The driving test system includes an acceleration section, a test section and a deceleration section connected in sequence; A model train is placed; a data acquisition system is arranged on one side of the test section, and the data acquisition system and the driving test system are respectively connected to a synchronous control system; the acceleration section can accelerate the model train to a test speed greater than 20m / s. Speed; the test section can use a shaking table to input seismic excitation; the deceleration section can decelerate the model train to a standstill. The invention can realize the functions of short-distance acceleration of model trains to test speed, high-speed driving test on bridges, synchronous reproduction of earthquake excitation and short-distance deceleration and braking in the laboratory, and has the advantages of millisecond-level synchronous control and millimeter-level configuration control, etc. .

A connection apparatus used between an active beam (8) and a buttress beam (7) of a turnout, comprising: two moving F rails transversely symmetrically arranged along a track; a connecting crossbeam (10) fixedly arranged on the lower surfaces, close to the buttress beam (7) end, of the two moving F rails along the track line direction, used for connecting the two moving F rails; and an angle adjusting mechanism disposed at the other end, opposite to the connecting crossbeam (10), of the two moving F rails, used for properly adjusting a relative deflection angle of the moving F rails and the active beam (8) of the turnout; and further comprising a supporting beam (1) disposed at the bottom of the connecting crossbeam (10), one end of the supporting beam being fixed to a supporting beam base (5) which is mounted on the active beam (8) of the turnout, the other end of the supporting beam extending toward one side of the crossbeam (10), and the extending end being fixed to the bottom of the connecting crossbeam (10). The connection apparatus can improve the vertical stiffness of the connecting apparatus between the active beam (8) and the buttress beam (7), and improve the stability of the connecting apparatus of the turnout.

The invention discloses a knee joint later-period rehabilitation training chair which comprises a base, two guide grooves, two lifting devices, a base plate, assisting armrests and a backrest. The two guide grooves are fixed to the upper side face of the base. The left side and the right side of the upper side face of the base are each provided with a row of lead screw fixing holes at equal intervals. Two long slots transversely distributed in parallel are formed in the middle of the upper side face of the base. The guide grooves and the long slots are distributed in a crossed mode. Four corners of the lower side face of the base are each provided with an antiskid leg. Each lifting device comprises a nut type ball screw and a transmission rod. The two lifting devices are connected through the transmission rods. The base plate is located on the base. Insert connection is adopted for the backrest, the two sides of the backrest are provided with metal rods, and the two metal rods penetrate through penetrating holes of the base plate and are inserted in backrest fixing holes in the base. The knee joint later-period rehabilitation training chair has the advantages of being user-friendly in design, simple in structure, easy to operate, low in price and the like and is suitable for a patient who rests at home and has a knee joint bending problem.

The invention discloses a rotating pipe feed positioning mechanism for large-caliber pipes. The rotating pipe feed positioning mechanism for the large-caliber pipes comprises machine legs and a mounting rack. The mounting rack is sequentially provided with a rotating pipe mechanism and a rotating pipe feed limiting mechanism. A pipe pressing mechanism is arranged on one side of the rotating pipe mechanism, the pipe pressing mechanism extends upwards to the position above the rotating pipe mechanism, so that the rotating pipe mechanism, the rotating pipe feed limiting mechanism and the pipe pressing mechanism are in a triangle shape to fix the pipes. A three-point positioning mode is used in the rotating pipe feed positioning mechanism for large-caliber pipes, adjusting is flexible, reliable and stable, and the large-caliber pipes can be conveniently machined on the mechanism.