7results about How to "Large deformation range" patented technology

The invention relates to the technical field of industrial guide pipe linings, in particular to a guide pipe polytetrafluoroethylene lining connecting piece with an adjustable expansion structure, which comprises a main piece part, the outer sides of the two ends of the main piece part are movably connected with connecting parts, and the outer sides of the connecting parts are in close contact with a guide pipe lining. The main part comprises a first rigid pipe, a second rigid pipe and a stainless steel corrugated pipe, the opposite sides of the first rigid pipe and the second rigid pipe are fixedly connected with clamping rings, and the two ends of the stainless steel corrugated pipe are fixedly connected with the two clamping rings respectively. According to the guide pipe polytetrafluoroethylene lining connecting piece with the adjustable expansion structure, the length can be adjusted through cooperation of the main piece part and the connecting part, and the stainless steel corrugated pipe and the modified fluororubber hose section of the main piece part are combined to compensate for different axis deviations of a pipeline; the corrugated hollow sealing pipe sleeve of the connecting part can be tightly attached to the guide pipe lining to prevent media from making contact with the inner wall of the pipeline, and the advantage of being stably fixed to the outer pipe of the guide pipe is achieved.

The invention relates to an empennage device for adaptive adjustment of a pneumatic center of an aircraft and the aircraft, and the empennage device comprises a sliding support, an empennage and an empennage driver which are arranged on two sides of the sliding support, and a support driver and reset assembly which is connected with the sliding support; the empennage drive is connected with the empennage and used for adjusting the posture of the empennage; the support driving and resetting assembly is connected with the two opposite ends of the sliding support in the sliding direction of the sliding support. The support drive comprises a driver and a controller electrically connected with the driver. The resetting assembly comprises a restorer and a tension sensor connected with the restorer; and the controller is electrically connected with the tension sensor so as to control the sliding driving force of the driver to the sliding support based on an output signal of the tension sensor.

The invention discloses a periscopic motor and a camera module, and relates to the field of electronic devices. A periscopic motor comprises a shell, a connecting carrier and an anti-shake carrier used for bearing a prism. The connecting carrier and the anti-shake carrier are both arranged in the shell; the connecting carrier comprises a fixing piece, a connecting piece and a mounting piece, the fixing piece is connected with the inner wall of the shell, the connecting piece is arranged between the fixing piece and the mounting piece, and at least part of the connecting piece can deform so that the mounting piece can move relative to the fixing piece; and the anti-shake carrier is connected with the mounting piece. The motor can solve the problem that a current motor cannot meet the requirements of large lens rotation angle and small occupied space at the same time.

The utility model provides an argon protective cover suitable for a small-diameter workpiece, which relates to an argon arc welding protective cover and comprises a protective cover shell, a front baffle and a rear baffle are respectively mounted at two ends of the protective cover shell, and thickened high-temperature-resistant fireproof cloth is mounted on the side walls of the front baffle and the rear baffle through rivets. A flexible copper net is installed between the inner walls of the protective cover shell, a gas dispersing pipe is arranged above the flexible copper net, a red copper gas inlet pipe is installed on one side of the gas dispersing pipe in an inserted mode, and one end of the red copper gas inlet pipe penetrates through the side wall of the protective cover shell and extends to the outer wall of the protective cover shell. And the argon arc welding can be better facilitated, the welding effect is improved, and therefore the argon arc welding device is worthy of wide application and popularization.

The invention discloses a linear output rotary motion actuator based on a two-way shape memory alloy, which comprises a cylindrical sleeve, a hollow cylindrical driven arm is coaxially arranged in the cylindrical sleeve, a shape memory alloy spring is arranged between the bottom of the driven arm and the bottom of the cylindrical sleeve, a cylindrical cam is arranged in the driven arm, and the cylindrical cam is arranged in the cylindrical sleeve. The cylindrical cam is matched with the two rollers, and the two rollers are installed on the two opposite sides of the driven arm respectively. By utilizing the characteristics that the two-way memory effect can memorize the shapes of an austenite phase and a martensite phase and can spontaneously deform along with the temperature, the defect that the one-way shape memory effect needs external force for auxiliary work is avoided; and the problems of poor control precision and high control difficulty caused by a nonlinear deformation rule of the shape memory alloy are solved through a cylindrical cam mechanism.

The invention relates to the technical field of cable detection, and discloses cable tensile strength detection equipment which comprises a main support, a first supporting ring, a second supporting ring and a clamp, the first supporting ring and the second supporting ring are arranged on the upper side and the lower side of the main support correspondingly, and the first supporting ring and the second supporting ring jointly rotate and are connected with the clamp in a sleeving mode; the two ends of a to-be-tested cable are clamped and wound by the clamps on the upper side and the lower side of the main support respectively, and the two clamps rotate reversely at the same time to stretch the to-be-tested cable. Compared with the prior art, the device has the advantages that the larger the tensile force is, the tighter the clamping is, the self-locking clamping is formed, the slipping problem is avoided, the upper clamp and the lower clamp synchronously and reversely rotate to wind a cable, axial uniform stress is achieved, cable damage is avoided, cable stretching is conducted through winding, and the device has a large deformation range; winding stretching and clamp retracting and releasing are driven by the same power source, equipment is simple, samples are convenient to take and place, and use is easy.

This invention discloses a linear displacement actuator based on a single-pass shape memory alloy, comprising a housing, within which a movable cam is disposed. An auxiliary spring and a shape memory alloy spring are respectively disposed on opposite sides of the movable cam. Electrode plate I and electrode plate II are respectively disposed at both ends of the shape memory alloy spring. An output rod is connected to the movable cam via rollers. This invention solves the problem of difficulty in achieving high-precision deformation control in existing actuators due to the nonlinear deformation characteristics of shape memory alloys.