9results about How to "No instability" patented technology

The invention relates to the technical field of Ti2AlNb-based alloy welding, in particular to a diffusion welding process of a large-area hollow-structure Ti2AlNb alloy component, which comprises the following steps of: prefabricating a welding boss on a welding surface of a hollow reinforcing rib area of a part; the parts are assembled on a welding tool according to technological requirements; the welding tool and the part are put into a vacuum diffusion welding furnace, the temperature is increased to the first temperature, first pressure is applied, heat preservation is conducted for first preset time, then pressure is unloaded, the temperature is continuously increased to the second temperature, second pressure is applied, heat preservation is conducted for second preset time, then pressure is unloaded, and then the furnace temperature is reduced to the third temperature for aging treatment; and preserving heat for a third preset time and then cooling along with the furnace. The diffusion welding process of the large-area hollow-structure Ti2AlNb alloy component aims at solving the problem that the connection reliability of a hollow Ti2AlNb component with a complex welding section is poor.

The utility model provides an intelligent electric baking pan with an improved handle, which comprises an electric baking pan body, a sealing cover is mounted at the top of the electric baking pan body, and the intelligent electric baking pan is characterized in that fixing rods are mounted on two sides of the electric baking pan body; the grip is mounted at the top of the fixing rod, and an anti-scald rubber sleeve is glued on the grip; and the mounting plate is mounted on the side face of the electric baking pan body, and two sets of fixing plates are symmetrically mounted at the top of the mounting plate. According to the electric baking pan, the two sets of first connecting plates are installed on the poison thorns on the two sides of the electric baking pan body, the two sets of fixing rods are fixedly installed on the side faces of the first connecting plates, the grips are installed on the tops of the two sets of fixing rods, the four sets of fixing rods and the two sets of grips are symmetrically installed on the two sides of the electric baking pan body, and the electric baking pan can be conveniently moved through the two sets of grips; and meanwhile, the anti-scald rubber sleeve is arranged on the grip, so that a user can be well prevented from being scalded.

This invention relates to a hysteretic loading test system for small-tonnage dampers, belonging to the field of vibration control technology. It includes a steel main frame, H-beams, a lifting system, a guiding device, a loading system, a data acquisition system, and a damper connection device. The steel main frame includes a top plate, a bottom plate, and a platform plate on the same plane of symmetry; the lifting system includes a worm gear lift, a lead screw, an AC motor, and eccentric blocks; the guiding device includes two spaced linear optical axes; the loading system includes a servo electric cylinder, a servo driver, a braking resistor, and a PLC module; the data acquisition system includes a data acquisition instrument, sensor connectors, spoke-type tension / compression sensors, synchronization bolts, and wire-type displacement gauges; the damper connection device includes a force transmission support and a damper connection conversion platform. This invention can be applied to hysteretic loading tests of small-tonnage dampers, testing the mechanical properties of dampers, and can also be applied to other mechanical tests.

The utility model belongs to the technical field of harvester, concretely relates to a kind of harvester turnover cab limiting locking mechanism, including harvester main body platform, the side of the harvester main body platform is rotatably connected with two electric telescopic rods, two the electric telescopic rod between fixedly connected with harvester cab, the side of the harvester cab is provided with cab curtain, the side of the harvester cab is provided with safety door, the side of the harvester cab is provided with locking device, the locking device includes rotating pressure plate, the side of the rotating pressure plate is fixedly connected on the side of harvester cab. The side of the rotating pressure plate close to harvester cab is fixedly connected on the side of harvester main body platform. The utility model solves the problem that the existing cab turnover mechanism cannot be position limited after turnover is completed, leading to the rebound reset of cab, to ensure the safety of staff.

The utility model discloses a high-altitude construction platform unloading block supporting device, and relates to the technical field of building construction auxiliary equipment. The device comprises a first trapezoidal hollow steel wedge block, wherein a second trapezoidal hollow steel wedge block is arranged at the top end of the first trapezoidal hollow steel wedge block, and the first trapezoidal hollow steel wedge block and the second trapezoidal hollow steel wedge block form a box body; through the arrangement of the finish rolling screw rod and the high-strength bolt, when the high-strength bolt and the finish rolling screw rod are tightened and pulled oppositely, the inclined surfaces on the first trapezoidal hollow steel wedge block and the second trapezoidal hollow steel wedge block slide towards the middle, so that the purpose of adjusting the elevation is achieved, and the first trapezoidal hollow steel wedge block and the second trapezoidal hollow steel wedge block are fixed together; meanwhile, the cross-core rods are inserted into the corresponding round holes, so that the inclined falling blocks are installed on the pier columns more firmly and are meshed tightly, the instability phenomenon is avoided, safety and reliability are achieved, operation is easy, work efficiency is high, turnover utilization is convenient, and cost is saved.

The utility model discloses a tool magazine of a numerical control machine tool. The tool magazine comprises a mounting frame, a protective cover, a motor, a cutter head, a cutter groove and a clamping structure. Through the arrangement of the clamping structure, when the push rod is pressed on the surface of the fixing plate, the push rod can drive the rack to enable the connecting teeth to rotate, when the connecting teeth rotate, the rotating clamping arm can be driven to rotate, and at the moment, the rotating clamping arm can be unfolded in a rotating mode; and at the moment, the push rod can slide along the surface of the fixing plate under the action of the torsional spring, and then the rotary clamping arm clamps and fixes the cutter in the cutter groove, so that after the cutter is placed in the cutter groove, the phenomenon that the cutter falls off is avoided, and the situation that the cutter is unstable in the cutter groove due to loss after being used for a long time is avoided.

The utility model discloses a full-automatic tray wrapping machine for a warehouse, which comprises a tray base, a lifting mechanism is arranged on one side of the tray base, a transverse mounting plate is arranged at the upper end of the lifting mechanism, a rotating mechanism is arranged on the mounting plate, a rotating shaft of the rotating mechanism extends downwards, and a transverse rod is mounted at the shaft end of the rotating shaft. The transverse rod rotates along with the rotating shaft under the action of the rotating mechanism, a sliding groove is formed in the transverse rod, a sliding two-way lead screw is installed in the sliding groove, internal thread sliding blocks are correspondingly installed at the two ends of the sliding two-way lead screw, one side end of the sliding two-way lead screw extends out of the sliding groove and is correspondingly provided with a rotating wheel, and a limiting mechanism is correspondingly installed at the position of the rotating wheel. According to the device, the sliding groove is formed in the transverse rod, the double-end lead screw is installed in the sliding groove, and the distance between the rotary drums on the two sides can be correspondingly adjusted through the structural design of the double-end lead screw, so that the width of a product during wrapping can be adjusted, the application range is wider, and the working efficiency is effectively improved.

This invention provides a negative Poisson's ratio honeycomb structure for aero-engines, relating to the field of aerospace technology, to address the technical problem of poor impact intrusion resistance in existing aero-engine structures. The honeycomb structure includes a ring structure formed by multiple sub-cells arranged circumferentially. Each sub-cell is surrounded by two mirror-symmetrical first faces and two mirror-symmetrical bent faces. The two bent faces bend in a direction approaching each other, and each bent face is formed by two mirror-symmetrical second faces. Each first and second face is triangular in shape and shares a common first vertex. The second vertices of each first and second face are located on the same cylindrical surface, and the central axis of the cylindrical surface coincides with the central axis of the ring structure. The second vertex refers to any vertex of each first and second face other than the first vertex. This honeycomb structure improves the impact intrusion resistance of traditional structures.

This invention discloses a construction method for a small-sized aluminum formwork disc-lock system for high-rise non-residential buildings. The construction steps include seven major steps: construction preparation, determination of the aluminum-wood combination scheme, construction of wall and column reinforcement formwork, erection of disc-lock scaffolding, construction of beam and slab reinforcement formwork, concrete pouring, and dismantling of the formwork frame. The beneficial effects of this invention are: It uses 400mm×1000mm small-sized standard aluminum formwork, optimizes the main structure through a 50mm modular design, and uses special connecting angle aluminum and tie plates to achieve a reliable aluminum-wood combination for irregular parts. Combined with disc-lock scaffolding, it forms a stable support and early dismantling system, increasing the utilization rate of aluminum formwork in non-standard buildings to over 90%, effectively ensuring the quality of concrete forming, significantly reducing construction costs and time, and is suitable for the construction of high-rise non-residential building structures such as commercial complexes, hospitals, and schools.