31results about How to "Guaranteed anti-vibration performance" patented technology

The invention discloses a semiconductor refrigerating device which comprises a semiconductor refrigerating plate, an insulation structure, a metal plate, a group of heat tubes, and a group of radiating fins. The semiconductor refrigerating plate is provided with a heating effect side and a cooling effect side. The heating effect and cold effect sides of the semiconductor refrigerating plate are isolated by the insulation structure. The upper surface of the metal plate is tightly attached to the cooling effect side of the semiconductor refrigerating plate. The lower surface of the metal plate contacts with liquid to be cooled. The first end of every heat tube is attached to the heating effect side of the semiconductor refrigerating plate, and the second end of every heat tube extends out of the insulation structure. The radiating fins are mounted at the second ends of the heat tubes. The heating effect and cooling effect sides of the semiconductor refrigerating plate of the semiconductor refrigerating device are fully isolated, heat is transmitted out from the closed hot ends of the heat tubes and is dissipated by the external radiating fins, and accordingly refrigerating efficiency of the semiconductor refrigerating device is increased greatly. In addition, the made cover structure is convenient to apply to vessels with the either end opened.

The invention relates to a NdFeB permanent magnet material suitable for a magnetic suspension system and a preparation method thereof. This material is prepared by adoping of 0.5%-5.0%high entropy alloy in the main alloy of RExFe100-x-yBy, so that the alloy of the invention can realize demagnetization coupling through the high entropy alloy. Moreover, since the high entropy alloy doped in the material has a single solid solution nanostructure, the invention can also restrain the alloy grain growth in the sintering process through the high entropy alloy, refine the grain, make the alloy component structure more uniform and uniform, and effectively improve the comprehensive magnetic properties of the NdFeB permanent magnet material. The magnetic performance of the NdFeB permanent magnet material is improved, and further the strength and toughness, the vibration resistance and the corrosion resistance of the material are improved, so that the material is suitable for application environments such as magnetic levitation and the like, which have more restrictions on the working conditions.

Provided is an active optical cable connector assembly. The active optical cable connector assembly comprises a tail sleeve, a connector socket shell, a plug, a left half tail back-up ring and a right half tail back-up ring positioned in the tail sleeve after merging, and an upper layer optical module and a lower layer optical module electrically connected with a high-speed electric connector via flexible printed circuit boards, the left half tail back-up ring and the right half tail back-up ring are both provided with slots capable of clamping the flexible printed circuit boards, the connector socket shell is fixedly provided with a seat core provided with two optical module upper slots and two optical module lower slots in a pasted manner, the tail sleeve is connected with the connector shell, the upper layer optical module and the lower layer optical module are both positioned in the connector socket shell, and the connector socket shell and the plug are connected by employing a four-channel LC plug-pull type structure. The active optical cable connector assembly is advantageous in that the integration is realized, the size is small, the weight is low, anti-electromagnetic interference is provided, the reliability is high, the installation and the debugging are simple and convenient, the problems of fiber coiling of conventional pigtail optical modules and easy break of the optical fibers can be thoroughly solved, the spatial size of a manned space system can be greatly reduced, and the active optical cable connector assembly is very applicable to data transmission application in the manned space systems.

The invention discloses a highly-shake-resisting gas density relay. The highly-shake-resisting gas density relay comprises a sealed gas chamber, a signal mechanism and an indicating value display mechanism. The signal mechanism and the indicating value display mechanism are located in the sealed gas chamber. The signal mechanism comprises a corrugated tube and a microswitch. The microswitch is controlled to be turned on or off by the corrugated tube. The indicating value display mechanism comprises a display terminal base, a display bourdon tube, a core, a pointer and a dial. One end of the display bourdon tube is connected with the display terminal base. The core, driven by the display bourdon tube of the indicating value display mechanism, is mounted on a base plate. The pointer is located on the core. The highly-shake-resisting gas density relay has the advantages that compensation gases are arranged in the sealed gas chamber and play a role in temperature compensation and shake resistance, the accuracy of the gas density relay is improved, and production cost and product weight are reduced.

The invention relates to a high-rigidity lifting device for ultra-precision machining. The lifting device is provided with a base and a lifting panel, a lower wedge-shaped block with an upward inclined plane is arranged on the base, an upper wedge-shaped block with an inclined plane oppositely matched with the lower wedge-shaped block is fixed to the bottom surface of the lifting panel, and a first friction guide rail is fixed to the inclined plane of the upper wedge-shaped block; the inclined plane of the lower wedge-shaped block is in sliding fit with the first friction guide rail, a secondfriction guide rail is fixed to the base, the bottom face of the lower wedge-shaped block is in sliding fit with the second friction guide rail, a trapezoidal lead screw is rotationally arranged in the lower wedge-shaped block, and a trapezoidal nut rotationally matched with the trapezoidal lead screw is fixedly connected to the lower wedge-shaped block; and the height of the device is adjusted through the lifting effect under the wedge-shaped motion effect of the translation of the lower wedge-shaped block on the upper wedge-shaped block, and sliding friction is adopted to replace rolling friction motion used by a traditional lifting device, so that the overall rigidity and precision of the device are improved, and the guiding precision in the lifting process and the anti-vibration effectin the machining process are guaranteed.

The invention discloses a 1200-watt high-speed motor controller which comprises a base and an upper PCB. A lower PCB is arranged above the base, a positioning hexagonal stud is in threaded connection with the upper portion of the lower PCB, and an exhaust groove is formed at the upper portion of the hexagonal stud; a copper terminal is arranged above the exhaust groove, a copper terminal pressing plate is arranged above the upper PCB, and the upper PCB is located above the copper terminal; the left side and the right side of the copper terminal pressing plate are in threaded connection with the copper terminal pressing plate fastening screws, and the lower portions of the copper terminal pressing plate fastening screws are sleeved with insulating sleeves. Compared with an existing common motor controller, the 1200-watt high-speed motor controller has the advantages that the copper terminals are not prone to displacement in the welding process, non-concentricity of the terminals and the terminal holes of a shell in the overall assembling process is avoided, the 1200-watt high-speed motor controller is sealed through a filling sealant, so that the waterproof grade of the controller is further improved, and meanwhile, breakage of the PCB due to generated vibration in the assembling or moving process is avoided.

The invention discloses a robust equilibrium design method for dynamic characteristics of a key component structure of complex equipment. The method comprises the following steps: establishing a robust equilibrium design model for the dynamic characteristics of the key component structure of the complex equipment; sampling by adopting a Latin superposing method, obtaining sample points through a co-simulation technology, and establishing a Kriging model of each dynamic characteristic index value of a key component structure of complex equipment in a prediction target and a constraint function;performing iterative optimization by utilizing an interval angle coincidence coefficient based on a constraint performance approximate interval and a given interval constant and a genetic algorithm of an overall steady deviation distance, and directly obtaining a design scheme for enabling the dynamic characteristics of the key component structure of the complex equipment to be steady and balanced. According to the method, a set composed of a key component structure target and a constraint performance robustness coefficient is established, the overall robust deviation distance is defined through the minimum robustness coefficient in the set, and robust equilibrium design of the dynamic characteristics of the key component structure of the complex equipment under the mixed uncertain condition is achieved.

The invention relates to the technical field of engine protection, in particular to an engine hydraulic suspension system and a method for achieving suspension vibration resistance through the engine hydraulic suspension system. The engine hydraulic suspension system comprises three hydraulic suspension mechanisms, wherein the two hydraulic suspension mechanisms are symmetrically mounted on the two sides of the front end above an engine assembly; the third hydraulic suspension mechanism is mounted at the middle section of the rear end above the engine assembly; the three hydraulic suspension mechanisms are distributed in an isosceles triangle shape in a three-point supporting mode to support the engine assembly; and through connecting pieces, the three hydraulic suspension mechanisms are fixedly connected with a vehicle rack at the tops of the hydraulic suspension mechanisms and the engine assembly at the bottoms of the hydraulic suspension mechanisms in a bolted mode respectively. According to the engine hydraulic suspension system, by adopting three hydraulic suspension mechanism, the efficient vibration reduction effect on a vehicle and the engine assembly can be effectively achieved under various working conditions, and meanwhile, effective dynamic and static load supporting of the engine assembly can be effectively achieved.

The invention discloses a rotatable displayer support for a ship. The rotatable displayer support comprises a displayer frame used for containing a displayer, a fixed support and an internal connecting rod, two movable supports are fixedly connected to the back of the displayer frame, mounting holes are formed in the movable supports; the bottom of the fixed support is fixed to a ship body, two grooves correspondingly used for containing one end of each movable support are formed in the top of the fixed support, screw holes penetrating through the grooves are formed in the fixed support; and the internal connecting rod penetrates through the screw holes of the displayer frame and the mounting holes of the movable supports at the same time, and the section, making contact with the mountingholes of the movable supports, of the internal connecting rod is a smooth section. According to the rotatable displayer support, in actual use, the movable supports are rotated, so that a displayer has the angle adjusting function, and the rotatable displayer support has the advantages of being convenient to install, good in vibration resistance, capable of improving the visual effect and the like.

The invention discloses a mechanical shell of voice transmission equipment arranged on an aircraft. The mechanical shell of the voice transmission equipment comprises a light guide plate (1), a left cover (2), a frame body (3), an upper cover (4), a PCB (printed circuit board) (5), a locking block assembly (6), a connector (7), a bottom plate (8), a heat dissipation cover (9) and a lower cover (10). The mechanical shell of the voice transmission equipment is of a frame structure, and the size of each frame column is a minimum size after screws are connected with a required space. In this way,the weight of the mechanical shell of the voice transmission equipment is as low as possible. All cover plates are connected to the frame through screws to realize the closed state of the mechanical shell, so that the requirement on the environment of the sea is met. The locking block assembly is provided with a stressed part and a pulling-out supporting point which can be used for pulling out. Asa result, the easy maintainability and the vibration resistance of a board card during the pulling-out and inserting process are ensured.

The invention relates to a fast-insertion wear alarm mechanism and an assembly method thereof. The fast-insertion wear alarm mechanism comprises a brake shoe; a brake lining is arranged above the brake shoe; a through hole I is formed in the brake lining; a through hole II is formed in the brake shoe; an alarm line assembly is embedded into the through hole I and passes through the through hole II, and is connected onto the brake shoe in a clamping manner through a clip hook; the alarm line assembly comprises an assembly body through which a wiring harness penetrates; and the wiring harness and a vehicle circuit system are connected and form a loop. According to the fast-insertion wear alarm mechanism and the assembly method thereof, the alarm line assembly is installed onto the brake shoeand the brake lining through the clip hook on an elastic clip, and the wear condition of the brake lining is judged in real time through make and break of the wiring harness; and the mechanism is simple in structure, fast and convenient to operate, easy to replace later and reliable in flexible locking, and has anti-seismic property.

The invention discloses a power transmission line pre-twisted vibration damper, which comprises a wire clamp, a connecting rod, a steel strand and a damper body, the wire clamp is installed on the upper portion of the connecting rod, first connectors are arranged at the two ends of the wire clamp, a flaring cover is arranged at one end of each first connector, a plurality of second elastic pieces are arranged on the inner wall of each flaring cover, one end of the steel strand is fixedly connected with the first connectors, the steel strand is located in the middle of each second elastic piece, and the other end of the steel strand is connected with the hammer body. The first connectors are arranged at the two ends of the connecting rod, the flaring covers are arranged at one ends of the first connectors, the multiple sets of second elastic pieces are arranged on the inner walls of the flaring covers, the second elastic pieces are used for absorbing vibration when the steel strand vibrates, and vibration of the wire is relieved.

The invention relates to a T-shaped steel machining making table. The T-shaped steel machining making table comprises a profiling base, a web, a flange slab and a clamp set; the profiling base comprises a flat plate base and L-shaped steel plates, the L-shaped steel plates are symmetrically arranged on the flat plate base in parallel in the vertical direction in a shape of an inverted L shape, a web containing groove corresponding to the boundary dimension of the web is formed, the web is embedded in the web containing groove, holes used for punching plug welding are formed in the flange slab,and the flange slab is fixed to the top of the web through the clamp set. Compared with the prior art, the making table has the beneficial effects of being high in welding precision, safe in operation, high in finished product yield rate, good in attractiveness and the like.