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33results about How to "Automatic reset" patented technology

Controllable intelligent magnetorheological pulse generator

The present invention relates to a controllable intelligent magnetorheological pulse generator. The generator comprises an upper chamber A, a lower chamber B, a piston (22) and an elastic body (23) which are located inside the chambers respectively; the housing (21) and the piston (22) of the chamber B (20) are formed by solidifying magnetizers (17) and a plurality of magnetic separation bodies (18); a gap between the chamber B (20) and the piston (22) is filled with a magnetorheological fluid; the housing (21) outside the chamber B (20) is wound with an electromagnetic coil (19) which is connected with alternating current; a magnetic field generated by the electromagnetic coil (19) passes through vertically a gap between the top of the chamber B (20) and the piston (22); the elastic body(23) is located in the chamber A (10); and one end of the elastic body (23) is connected with the upper end portion of the piston (22), and the other end of the elastic body (23) is connected with thetop of the chamber A (10). According to the controllable intelligent magnetorheological pulse generator of the invention, the strength of the magnetic field can be changed through changing the magnitude of current, so that the stiffness and damping of the magnetorheological fluid can be changed, and the top output waveforms of the chamber A can be controlled to be pulse waveforms.
Owner:WUHAN UNIV OF TECH

Bush stubble stumping machine with automatic reset safe hood

The invention relates to a bush stubble stumping machine with an automatic reset safe hood, which relates to a bush stubble stumping machine. The bush stubble stumping machine with an automatic reset safe hood solves the problem that most of the traditional bush stubble stumping machine is not provided with a safe protection hood, and thus operating personnel are seriously hurt when the stubble stumping saw blade is broken. The bush stubble stumping machine comprises a saw blade, a driving motor and an underframe, wherein the driving motor is arranged in the underframe; the axis of the outputshaft of the driving motor is vertical to a horizontal plane; the saw blade is sheathed on the output shaft of the driving motor; and the saw blade is positioned below the underframe. The bush stubble stumping machine also comprises a safe hood, a rotor, a steel wire rope and a resetting mechanism, wherein the rotor is sheathed on the output shaft of the driving motor, the rotor is positioned between the lower surface of the underframe and the saw blade, the safe hood is connected with the edge of the rotor, the safe hood is positioned at the front end of the underframe, one end of the steel wire rope is fixedly connected with the edge of the rotor, the other end of the steel wire rope is connected with the resetting mechanism, and the resetting mechanism is arranged in the underframe. The bush stubble stumping machine disclosed by the invention is used for the bush stubble stumping operation.
Owner:HARBIN RES INST OF FORESTRY MACHINERY CHINA MIN OF FORESTRY

Efficient rail repairing device for rail vehicle

InactiveCN112080970AAchieve dredging activitiesUnblock reachRailway track constructionEngineeringStructural engineering
The invention discloses an efficient rail repairing device for a rail vehicle. The device comprises a first mold and anti-blocking devices. According to the rail repairing device, the anti-blocking devices are arranged on the left side and the right side of the first mold and a second mold correspondingly, pull rods are pulled outwards to enable connecting rods to move, and ejector rods are drivento be inserted into discharging openings to conduct dredging movement under the cooperation of auxiliary rods, so that advantages of dredging the discharging openings and ensuring the discharging efficiency are achieved, reset mechanisms are arranged on the right sides of the upper ends of the pull rods, when the pull rods are pulled, sliding blocks arranged at the upper ends of the pull rods stretch tension springs, then when the pull rods are pulled, the tension springs pull back to drive the pull rods to reset, advantages of automatic reset of the pull rods and usability enhancement are achieved, by arranging removing mechanisms on the right sides of the lower ends of shells, when the ejector rods move back and return, removing rings in mounting grooves in one sides of connecting pipescan clean the ejector rods, molten metal is prevented from being attached to the outer portions of the ejector rods, and then beneficial effects of cleaning the outer surfaces of the ejector rods andguaranteeing usability of the ejector rods are achieved.
Owner:邱朝兴

Erosion-resistant normally-open type inner blowout prevention valve

The invention discloses an erosion-resistant normally-open type inner blowout prevention valve which comprises a valve body and further comprises an upper valve seat and a lower valve seat which are fixed in the valve body, a sliding sleeve arranged in the upper valve seat in a sliding fit mode and a valve element fixed to the lower portion of the sliding sleeve. A first elastic piece is arranged between the top of the sliding sleeve and the top face in the upper valve seat, a second elastic piece is arranged between the bottom of the valve element and the top of the lower valve seat, a plurality of drainage channels are formed in the side wall of the sliding sleeve, a first sealing face is arranged at the bottom of the inner side wall of the upper valve seat, and a second sealing face matched with the first sealing face is arranged on the outer wall of the valve element. The second sealing surface is positioned below the drainage channel; when no external force exists, the first sealing face does not make contact with the second sealing face. One of the technical problems solved by the invention is that the sealing surface of the existing inner blowout prevention valve is easy to damage and lose efficacy, and the aims of reducing the erosion degree of the sealing surface and prolonging the service life of the inner blowout prevention valve are fulfilled on the premise of ensuring the normally open work of the inner blowout prevention valve.
Owner:SOUTHWEST PETROLEUM UNIV

Safety protection door for diamond cone numerical control lathe

The invention discloses a safety protection door for a diamond cone numerical control lathe, and relates to the technical field of numerical control machine tool equipment. The safety protection doorcomprises a machine shell, a door plate and a movable plate, wherein an operation opening is formed in the left side of the front face of the machine shell, T-shaped plates are fixed to the upper sideand the lower side of the front face of the machine shell, limiting plates are fixed to the right sides of the positions, corresponding to the operation opening, of the T-shaped plates, T-shaped grooves are formed in the positions, corresponding to the T-shaped plates, of the back face of the door plate, clamp grooves are formed in the positions, corresponding to the operation opening, of the T-shaped plates, first supporting plates are arranged at the upper end and the lower end of the front face of the movable plate, second supporting plates are arranged on the back faces of the other endsof the first supporting plates, baffles are fixed to the middles of the front faces of the second supporting plates, limiting blocks are arranged below the baffles, and springs are fixed between the baffles and the limiting blocks. According to the safety protection door for the diamond cone numerical control lathe, the door plate is more convenient to disassemble through the second supporting plates and the clamping grooves, and automatic reset is achieved when the door plate moves through the arrangement of the limiting blocks, the baffles and the springs.
Owner:苏州志纳精密科技有限公司

Convenient and efficient corrugated board creasing device

PendingCN113103666ATo achieve the effect of four-sided alignmentAchieve separationPaper-makingBox making operationsEngineeringStructural engineering
The invention discloses a convenient and efficient corrugated board creasing device, and relates to the technical field of corrugated board creasing. The convenient and efficient corrugated board creasing device comprises a table body, the middle part of the bottom in the table body is movably connected with a sliding groove shaft, the outer side of the middle part of the sliding groove shaft is sleeved with a lantern ring, and the middle part of the surface of the lantern ring is connected with a sliding shaft in a penetrating manner. One end of the sliding shaft is slidably connected with the sliding groove shaft, the top of the outer side of the lantern ring is sleeved with a rotating ring, hollow blocks are fixedly connected to the four edges of the interior of the table body at equal intervals, movable blocks are slidably connected to the interiors of the hollow blocks, and moving blocks are fixedly connected to the tops of the movable blocks. One side of each movable block is fixedly connected with the rotating ring through a pull rope, linkage rods are fixedly connected to the two sides of the lantern ring correspondingly, one end of each linkage rod is sleeved with a hydraulic telescopic rod, a movable plate is connected to the top of each hydraulic telescopic rod in a penetrating mode, and sliding creasing blocks are slidably connected to the outer sides of the two ends of each movable plate correspondingly. The effect of aligning the four edges of the corrugated board is achieved.
Owner:天津秋缘纸制品股份有限公司

Counting and packaging integration machine for zippers

The invention provides a counting and packaging integration machine for zippers, belongs to the technical field of machinery, and solves the technical problems that the existing zipper counter is not provided with a packaging device, and a worker needs to pack the zippers after the zippers are counted, so that the production efficiency is low. The counting and packaging integration machine for the zippers comprises a stander, wherein a workbench is fixed on the stander; a counting device and a packing device are arranged on the workbench; the counting device comprises a bracket, a swinging rod and a counter; the bracket is fixedly connected to the workbench through an adjustment mechanism; the swinging rod is hinged to the bracket; a travel switch which can be in contact with the upper end of the swinging rod is fixed on the bracket and is connected with the counter through a line; the packing device comprises a material receiving piece and a push plate; the material receiving piece is arranged on the workbench; a through material chute is formed in the upper part of the material receiving piece; when outer force is applied, the zippers cross the counting device and fall into the material chute; the push plate is arranged on the workbench. The counting and packaging integration machine has the advantages of high production efficiency and high universality.
Owner:ZHEJIANG JKJ ZIPPER TECH CO LTD

A controllable and intelligent magnetorheological pulse generator

The present invention relates to a controllable intelligent magnetorheological pulse generator. The generator comprises an upper chamber A, a lower chamber B, a piston (22) and an elastic body (23) which are located inside the chambers respectively; the housing (21) and the piston (22) of the chamber B (20) are formed by solidifying magnetizers (17) and a plurality of magnetic separation bodies (18); a gap between the chamber B (20) and the piston (22) is filled with a magnetorheological fluid; the housing (21) outside the chamber B (20) is wound with an electromagnetic coil (19) which is connected with alternating current; a magnetic field generated by the electromagnetic coil (19) passes through vertically a gap between the top of the chamber B (20) and the piston (22); the elastic body(23) is located in the chamber A (10); and one end of the elastic body (23) is connected with the upper end portion of the piston (22), and the other end of the elastic body (23) is connected with thetop of the chamber A (10). According to the controllable intelligent magnetorheological pulse generator of the invention, the strength of the magnetic field can be changed through changing the magnitude of current, so that the stiffness and damping of the magnetorheological fluid can be changed, and the top output waveforms of the chamber A can be controlled to be pulse waveforms.
Owner:WUHAN UNIV OF TECH

An erosion-resistant normally open internal blowout preventer

The invention discloses an erosion-resistant normally open internal blowout prevention valve, comprising a valve body, an upper valve seat and a lower valve seat fixed in the valve body, a sliding sleeve slidingly fitted in the upper valve seat, and a sliding sleeve fixed in the upper valve seat. The valve core under the sliding sleeve, the upper valve seat and the lower valve seat both have flow passages, a first elastic piece is arranged between the top of the sliding sleeve and the inner top surface of the upper valve seat, and a first elastic piece is arranged between the bottom of the valve core and the top of the lower valve seat The second elastic member, the side wall of the sliding sleeve is provided with a number of leakage channels, the bottom of the inner side wall of the upper valve seat is provided with a first sealing surface, the outer wall of the valve core is provided with a second sealing surface matching the first sealing surface, and the second sealing surface is located in the drain Below the flow channel; when there is no external force, the first sealing surface is not in contact with the second sealing surface. One of the technical problems solved by the present invention is that the sealing surface of the existing inner blowout preventer is easily damaged and fails, so that the erosion degree of the sealing surface can be reduced and the inner blowout preventer can be extended under the premise of ensuring the normally open operation of the inner blowout preventer. purpose of service life.
Owner:SOUTHWEST PETROLEUM UNIV

Bush stubble stumping machine with automatic reset safe hood

The invention relates to a bush stubble stumping machine with an automatic reset safe hood, which relates to a bush stubble stumping machine. The bush stubble stumping machine with an automatic reset safe hood solves the problem that most of the traditional bush stubble stumping machine is not provided with a safe protection hood, and thus operating personnel are seriously hurt when the stubble stumping saw blade is broken. The bush stubble stumping machine comprises a saw blade, a driving motor and an underframe, wherein the driving motor is arranged in the underframe; the axis of the outputshaft of the driving motor is vertical to a horizontal plane; the saw blade is sheathed on the output shaft of the driving motor; and the saw blade is positioned below the underframe. The bush stubble stumping machine also comprises a safe hood, a rotor, a steel wire rope and a resetting mechanism, wherein the rotor is sheathed on the output shaft of the driving motor, the rotor is positioned between the lower surface of the underframe and the saw blade, the safe hood is connected with the edge of the rotor, the safe hood is positioned at the front end of the underframe, one end of the steel wire rope is fixedly connected with the edge of the rotor, the other end of the steel wire rope is connected with the resetting mechanism, and the resetting mechanism is arranged in the underframe. The bush stubble stumping machine disclosed by the invention is used for the bush stubble stumping operation.
Owner:HARBIN RES INST OF FORESTRY MACHINERY CHINA MIN OF FORESTRY

Clapper type relay

The invention relates to a clapper-type relay which comprises an electromagnetic assembly and a contact assembly, the electromagnetic assembly comprises a yoke and an armature, the contact assembly comprises a movable reed, a wire inlet pin and a wire outlet pin, the wire outlet pin is provided with a static contact I and a static contact II, and the static contact I and the static contact II are arranged on the movable reed. A movable contact I is arranged at the position, corresponding to the fixed contact I, of the movable reed, a movable contact II is arranged at the position, corresponding to the fixed contact II, of the movable reed, the fixed contact I and the movable contact I are made of tungsten materials, and the fixed contact II and the movable contact II are made of silver materials. By adopting the technical scheme, the clapper type relay provided by the invention adopts a clapper type structure to realize opening and closing of the movable contact and the static contact, so that the movable contact and the static contact made of the tungsten material are contacted firstly, the movable contact and the static contact made of the silver material are contacted later, the movable contact and the static contact made of the tungsten material are disconnected firstly, and the movable contact and the static contact made of the silver material are disconnected later; a double-breakpoint output function and impact resistance are realized, and the service life of the contact is prolonged.
Owner:浙江正泰汽车科技有限公司
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