36results about How to "Solve the limit problem" patented technology

A spacing device of equipment for delivering welding workpieces in a circulating manner is used for solving the spacing problem of a slipping bracket during the operation of the equipment, is mounted on the equipment provided with a slipping workbench rack and a lifting workbench rack, and comprises a slipping spacing mechanism, a lifting spacing mechanism and a spacing stop block, wherein the slipping spacing mechanism comprises a spacing component and an unlocking piece; the spacing component is hinged to the slipping workbench rack of the equipment, and is matched with the unlocking block to control a slipping bracket; and the unlocking block is fixed on the lifting workbench rack of the equipment. The spacing device has the advantages that the structure is simple; the conception is ingenious; the performance is stable; the investment cost is low; the welding workpieces can be positioned reliably during a delivering process; automatic control of spacing and releasing is realized; the workpiece delivering efficiency is improved; and the shape precision and the position precision of the workpieces during follow-up processing are guaranteed.

The invention discloses a limiting device for a guide frame, which is used for guiding and limiting a crane. The limiting device for the guide frame consists of the crane, a limit stop, guiding shafts and balance weight blocks, wherein the limit stop is positioned at the topmost end of the guide frame device; the two symmetrical guiding shafts in a vertical direction are arranged on two sides of the limiting device for the guide frame; two balance weight blocks are arranged at the bottom of the two sides of the two limiting devices for the guide frame; and the crane is connected with the guiding shafts through a linear bearing. The device has the advantages that: the problems of guiding and limiting function of the crane are solved effectively; the safety factor is greatly increased; continuous and stable production is ensured; and the device has a simple structure and is easy to manufacture.

The invention discloses a curtain wall mounting structure. The mounting structure comprises a curtain wall panel, a hanging weight and a supporting plate, wherein the hanging weight is connected withthe curtain wall panel, a notch is formed in the hanging weight, the supporting plate is connected to a building, the supporting plate is provided with a clamping strip matched with the notch, the hanging weight is connected to the clamping strip of the supporting plate in a hung mode through the notch, and the hanging weight can slide on the clamping strip in the first direction. The structure has the beneficial effects that hanging connection of a hollowed-out UHPC art panel is achieved.

The invention discloses a tensile resistant limiting device used for a friction pendulum support shock isolation layer. The tensile resistant limiting device for the friction pendulum support shock isolation layer comprises anchoring steel frames, pressure bearing plates, a sliding block and a spiral spring. The upper anchoring steel frame is embedded in a bottom beam of the shock isolation layer through pouring in advance, and the lower anchoring steel frame is anchored in an independent base column. The upper pressure bearing plate is welded to the lower anchoring steel frame, and a stiffening rib is welded for fixing. The lower pressure bearing plate is welded to the upper anchoring steel frame, and the stiffening rib is welded for fixing. A hole is reserved in the lower pressure plate to ensure that a lower end sleeve of the sliding block can be tightly inserted into the hole. An upper end plate of the sliding block is in contact with the upper pressure bearing plate, and the lower end sleeve penetrates through the spiral spring and the lower pressure bearing plate reserved hole. The inside of the lower bearing pressure plate reserved hole, the sliding block, and the lower bottom surface of the upper pressure bearing plate are all made of non-bonded low carbon steel, and thus smooth sliding is ensured. When the friction pendulum shock isolation structure is subjected to strong seismic oscillation action and the shock isolation layer and a base are about to be separated, the upper pressure plate and lower pressure bearing plate compress the spiral spring to produce pressure, so that the tensile resistant effect of the shock isolation layer is achieved through the effect that the upper anchor and lower anchor steel frame interact to prevent a friction pendulum from breaking away.

The invention provides a setting treatment device for a turnout snow-melting fixture. The setting treatment device comprises a support; a support panel is provided with a guide groove; one side of the guide groove is provided with a first positioning pin; the other side of the guide groove is provided with a second positioning pin; a plurality of limiting holes are disposed between the first positioning pin and the second positioning pin; the limiting holes are detachably provided with limiting pins; the guide groove penetrates through two side surfaces of the support panel; the first positioning pin, the second positioning pin and the limiting holes are all disposed at one side of the support panel; the other side of the support panel is provided with a force-applying mechanism; the force-applying mechanism is provided with a roller shaft at the end close to the guide groove; and the roller shaft is vertical to the support panel and penetrates through the guide groove. The setting treatment device is simple in operation and low in cost and can realize setting treatment for a plurality of turnout snow-melting fixtures. Besides, the setting treatment is convenient for mechanism installation and adjustment, is suitable for large-scale production and can realize the setting treatment of the turnout snow-melting fixture and guarantee the quality of the fixture.

A spacing device of equipment for delivering welding workpieces in a circulating manner is used for solving the spacing problem of a slipping bracket during the operation of the equipment, is mounted on the equipment provided with a slipping workbench rack and a lifting workbench rack, and comprises a slipping spacing mechanism, a lifting spacing mechanism and a spacing stop block, wherein the slipping spacing mechanism comprises a spacing component and an unlocking piece; the spacing component is hinged to the slipping workbench rack of the equipment, and is matched with the unlocking block to control a slipping bracket; and the unlocking block is fixed on the lifting workbench rack of the equipment. The spacing device has the advantages that the structure is simple; the conception is ingenious; the performance is stable; the investment cost is low; the welding workpieces can be positioned reliably during a delivering process; automatic control of spacing and releasing is realized; the workpiece delivering efficiency is improved; and the shape precision and the position precision of the workpieces during follow-up processing are guaranteed.

The invention provides a clutch. The clutch comprises a supporting piece connected with a rotating shaft, two clutch assemblies and elastic pieces cooperating with the clutch assemblies, each clutch assembly comprises two clutch blocks which are arranged in the axial direction, the four clutch blocks of the two clutch assemblies are arranged symmetrically relative to the axial arrangement direction of the clutch blocks and the clutch movement direction correspondingly, and the four clutch blocks are the same in structure. Therefore, when the clutch is manufactured, mold making only needs to be performed for one clutch block, then the four same clutch blocks can be configured as one clutch, so that molds are simplified, the mold cost is saved, and then the manufacturing cost of the clutch is reduced; and the clutch blocks provided by the clutch each have a hollow structure and a cavity portion so that the clutch blocks can be made into various complex structures to be applied to different occasions, the supporting piece is clamped between the upper clutch block and the lower clutch block of each clutch assembly, so that limiting of the supporting piece in the up-down direction is facilitated, and a quite good safety protection effect is achieved.

The invention discloses a method and device for die vehicle steering. According to the method, a rotating platform is utilized to load a die vehicle to rotate to perform quarter turn traveling between working sections, it is guaranteed that upstream working sections are orderly linked up with downlink working sections, and the production site is fully saved. The device comprises the rotating platform, an uplink track, a downlink track, the die vehicle and a friction wheel. The die vehicle runs smoothly on a right-angle-shaped production line, the contradiction between the production development and site insufficiency is solved, the production cost is reduced, and production efficiency is improved.

The invention discloses a distributed battery energy storage system dispatching operation method of considering voltage regulation. The method comprises the following steps of (1) carrying out data collection; (2) judging whether bus voltage V<bus> is over the limit or not, if the bus voltage is greater than a maximum voltage reference value V<ref-max>, entering the step (3), and if the bus voltage is smaller than a minimum voltage reference value V<ref-min> or the system is in a peak load condition Peak-Load=1, entering the step (4); (3) carrying out an overvoltage regulation process; (4) carrying out low voltage regulation and peak load reduction processes; (5) carrying out an instruction sending link of a controller, sending a control instruction to voltage regulating equipment or a battery energy storage system by the controller and enabling the voltage regulating equipment or the battery energy storage system to start a corresponding action; and (6) returning to the step (1) and observing the control effect of the bus voltage. The bus voltage is regulated through battery energy storage charging and discharging dispatching, the out-of-limit problem of the bus voltage is solved, and mutual optimization of the voltage regulating equipment and the battery energy storage system and a photovoltaic power generation system is achieved.

The invention discloses a distributed photovoltaic grid-connected collaborative control method and system for preventing voltage from exceeding the limit. Back-to-back converters are used to control the reactive power of the local load at the grid-connected point of the distributed photovoltaic power generation system, and the photovoltaic grid-connected inverter is controlled. The working status of the system limits the output power of distributed photovoltaic power generation, and the braking control link is set to form a coordinated control system to adjust the voltage of photovoltaic grid-connected points. When the voltage exceeds the limit, the local load reactive power control of photovoltaic grid-connected points takes effect first, avoiding the consumption of photovoltaic power generation by the distribution network ability impact. The invention can effectively solve the voltage limit problem of distributed photovoltaic grid-connected points, and maximize the ability of the distribution network to accommodate photovoltaic power generation.

The invention discloses a lifting limit device of a marine pneumatic hoist hook, which comprises a winch, a pneumatic motor, a three position four-way hand-directional valve, a two position two-way pneumatic operated directional valve, a two position three-way pneumatic operated directional valve and a two position three-way pneumatic operated directional valve control mechanism, wherein the two output ends of a three position four-way pneumatic reversing valve are respectively connected with the two ends of the pneumatic motor; the output end of an air source is connected with the input end of the three position four-way pneumatic reversing valve through the two position two-way pneumatic operated directional valve; the output end of the air source is also connected with the input end of the two position three-way pneumatic operated directional valve; the output end of the two position three-way pneumatic operated directional valve is connected with the pneumatic control end of the two position two-way pneumatic operated directional valve, and the two position three-way pneumatic operated directional valve control mechanism is arranged on the upper side of a hook. The invention has the advantages of simple structure and low manufacturing cost, and the two position three-way pneumatic operated directional valve control mechanism consisting of a transmission steel wire rope and a hoisting block is adopted for limiting the hoist hook lifting, so the limiting problem when the marine pneumatic hoist hook is used for lifting under an explosion-proof environment is solved, and the lifting limit device can be applied to a movable type pneumatic hoist.

The invention discloses a self-locking adjusting device and a method for using the same. The self-locking adjusting device mainly comprises a lever arm and a top seat. The lever arm comprises two mutually parallel support plates and three pins connected with the two support plates, the lower portions of the support plates are bent inwards, pin holes are arranged on the upper portions, at bent positions and on the lower portions of the support plates respectively, and the three pins penetrate into the pin holes of the two support plates respectively and are integrally welded with the support plates. The top seat comprises a bottom plate and two connecting plates parallelly arranged on the bottom plate, notches matched with the pins penetrating into the pin holes on the upper portions of the support plates are arranged on one side of each connecting plate, and the pins penetrating into the notches of the two connecting plates and the pin holes of the two support plates are integrally welded. The method for using the self-locking adjusting device includes: mounting the pins on the lower portions of the support plates in a T-shaped groove of a worktable; tightly attaching the bent positions of the pins to the surface of the worktable to realize self-locking; and driving a workpiece to move along the T-shaped groove of the worktable by the aid of a jack serving as power to adjust micro-displacement of the workpiece.

The invention belongs to the technical field of uranium enrichment, and particularly relates to a worm gear structure concurrently serving as a limiting mechanism. The left half part and the right half part of a box are each of a hollow cylindrical structure and are staggered by 90 degrees in space, the upper portion of the left half part is connected with an end cover, the left half part of the box is provided with a worm gear, the right half part of the box is provided with a worm, and the worm gear and the worm are in a meshed state; the front outer wall and the back outer wall of the high portion in the center of the worm gear on the upper portion of the left half part of the box each extend outwards to form a boss plane tangent to the cylindrical structure, that is to say, the two boss planes protrude in the cylindrical structure; the two boss planes are each provided with an adjusting bolt, the height of the centers of the adjusting bolts is consistent with the thickness of the center of the worm gear, that is to say, the adjusting bolts can touch the worm gear when the worm gear rotates, the rotating angle of the worm gear is limited by the positions of the adjusting bolts, and then limiting on the valve opening and closing angle is achieved. According to the worm gear structure, valve opening and closing can be effectively achieved, the transmission requirement is met, and the problem about limiting of the opening and closing angle is solved.