7results about How to "Guaranteed displacement accuracy" patented technology

The invention discloses an integrated transformer with a dynamic magnetic flux adjusting function, and belongs to the technical field of transformers. The packaging shell is fixedly arranged on the substrate, and a sealed mounting cavity is defined by the packaging shell and the substrate; the magnetic core assembly is arranged in the sealed mounting cavity and comprises two magnetic core bodies which are oppositely arranged in the axial direction and an elastic supporting piece, the central areas of the two magnetic core bodies are oppositely combined to form a central magnetic column, a variable air gap is formed between the edge areas, and the elastic supporting piece is connected with the magnetic core bodies and the substrate or the packaging shell; the elastic reset device is used for enabling the magnetic core body to float in the axial direction and achieve elastic reset. The planar spiral coil is fixedly arranged on the substrate, is arranged between the internal gaps of the two magnetic core bodies, and is coaxially arranged around the central magnetic column; the magnetic flux adjusting mechanism is arranged on the peripheral side of the magnetic core assembly in a surrounding mode. According to the transformer, continuous dynamic adjustment of working magnetic flux can be achieved, the multiple sets of piezoelectric ceramic pieces which are evenly arranged in the circumferential direction enable the magnetic core body to be stressed in a balanced mode, movement is stable, and deflection and clamping stagnation of the magnetic core body are effectively avoided.

The utility model relates to the technical field of textile machinery manufacturing, in particular to an active rapier opening device of a rapier loom. The mobile cam mechanism includes a mobile cam and a roller follower assembly. The swing mechanism is driven by the beating-up swing shaft to slightly deflect. And the moving cam performs reciprocating linear displacement motion under the action of the traction force from the swinging mechanism. The roller driven assembly is used as an assembly foundation of the mounting seat. The rapier opening block is used for pressing the rapier receiving head of the rapier so that the rapier receiving head can release yarn and is fixed to the installation base. In the process that the roller driven assembly is controlled by the cam profile of the movable cam to execute reciprocating type linear displacement motion, the mounting base can drive the rapier opening block to be close to / away from the rapier receiving head of the rapier. Thus, on one hand, the displacement precision of the rapier opening block is guaranteed, and then the reliability and accuracy of implementation of the follow-up rapier opening action process are improved; and on the other hand, the service life of the rapier receiving head and the service life of the rapier opening block are greatly prolonged.

The present application relates to a kind of aluminum strip pneumatic feeding device for stamping, including frame and slider, be connected between frame and slider by horizontal telescopic cylinder, be provided with first vertical telescopic cylinder on frame, be provided with front pressing plate on the upper end of first vertical telescopic cylinder, be provided with second vertical telescopic cylinder on slider, be provided with rear pressing plate on the upper end of second vertical telescopic cylinder.Gas source connecting port is opened in frame, frame internal gas path that is communicated with gas source connecting port is opened in the inside of frame, slider internal gas path is opened in the inside of slider, second vertical telescopic cylinder is controlled to be connected with slider internal gas path, horizontal telescopic cylinder is hollow structure, frame internal gas path and slider internal gas path are communicated with each other by horizontal telescopic cylinder, be provided with reversing pressure rod connected with frame internal gas path on frame.The present application can realize the same aluminum strip feeding action as the operation tempo of punch press, can effectively guarantee the displacement accuracy of aluminum strip, and will not produce indentation or scratch to aluminum strip.

The utility model relates to a kind of damping platform, including including magnetic suspension damper, first connecting plate and second connecting plate, magnetic suspension damper is configured as multiple, second connecting plate is parallelly arranged with first connecting plate, and accommodating space is formed between second connecting plate and first connecting plate, and all magnetic suspension dampers are arrayed in accommodating space.The utility model can be commonly supported by multiple magnetic suspension dampers The precision equipment on top, so that the precision equipment load can be evenly distributed to each magnetic suspension damper, to improve the carrying capacity of damping platform.Meanwhile multiple magnetic suspension dampers can work cooperatively, jointly offset vibration in different directions, to realize the efficient suppression of multi-degree-of-freedom vibration.

The utility model relates to steel band width automatic measuring instrument on spiral weld pipe production line belongs to measurement technical field, solves the technical problem such as big worker workload of existing steel band width measuring instrument, width measurement precision cannot reach the requirement. Solution: steel band width automatic measuring instrument on spiral weld pipe production line, include: frame, guide unit, guide unit includes the left guide unit and right guide unit of symmetry setting in the top of frame, driving unit, driving unit includes the left driving unit and right driving unit of symmetry setting in the side of frame, measurement unit, measurement unit includes the left measurement unit and right measurement unit of symmetry setting in the top of guide unit, PLC control unit, and the electrical connection between PLC control unit and driving unit, measurement unit. Compared with prior art, the utility model has the advantages of high precision, long service life, wide applicability, low cost and the like.

The utility model relates to the technical field of seeding devices, in particular to a seeding device convenient for spacing adjustment for wild jujube planting, which comprises a machine body, support boxes are fixedly mounted on two sides of the bottom surface of the machine body, and transverse plates are fixedly connected in the support boxes. A motor mounted at the top of the transverse plate is started, and a motor output shaft drives a screw to rotate; under the cooperative guiding action of the limiting block and the limiting groove, the movable block on the screw precisely displaces in the axial direction, and meanwhile the fixed block rigidly connected with the movable block is driven to synchronously move; the fixed block transmits motion to the adjusting block through the connecting rod, and finally vertical lifting adjustment of the discharging pipe is realized, so that a traditional manual screwing adjustment mode is abandoned, the adjustment efficiency is remarkably improved, the displacement precision is ensured through screw transmission, the depths of the discharging pipes of different seeding units are kept consistent, and the working efficiency is improved. The strict requirement of precision agriculture on the seeding depth is effectively met, and meanwhile, the labor intensity of operators is greatly reduced, so that the device is convenient to use.

The present application relates to the system with fluid action generally, more particularly to the hydraulic technology field, and disclose a kind of single-cylinder hydraulic mechanism of accurate adjustment hydraulic oil supply, including cylinder, the pressure regulating part is arranged in the cylinder, the buffer part is arranged on the pressure regulating part, the oil control part is connected on the buffer part, the oil inlet part is also connected on the pressure regulating part, the anti-vibration oil supplement part is installed on the cylinder, the pressure regulating part includes inner rod, the inner rod is arranged in cylinder, one end of the inner rod is fixedly connected with piston sheet, the inner rod is slidably connected in cylinder by piston sheet, oil port one is formed in the two sides of the piston sheet, the end of the cylinder is fixedly connected with sealing disc, the double buffering design of oil control part spring, buffer sheet, buffer part guide cover, sealing ring is adopted, vibration is reduced in cooperation with hydraulic damper, eliminate the impact and cavitation risk caused by oil flow rate mutation, protect sealing element and core component.