8results about How to "Improved vibration stability" patented technology

The utility model discloses a self-locking spring, and belongs to the technical field of springs. Aiming at the problem that a spring in the prior art is not easy to self-lock, the self-locking spring disclosed by the utility model greatly breaks through the limitation of a traditional spring through collaborative innovation of a built-in hinge type locking mechanism and traction unlocking: firstly, a movable rod realizes full-angle unfolding by virtue of gravity or a manual push rod, so that the problem of locking failure in a non-vertical state is thoroughly solved; the movable rod can be folded in a linkage mode only by slightly pressing the spring and then lifting the pull wire, and unlocking operation is obviously simplified; thirdly, the steel multi-hinge structure keeps strong locking force in a vibration environment, and the vibration resistance stability is comprehensively improved; a locking mechanism is completely arranged in a spring cavity, the space utilization rate is increased, the whole device is lighter and more compact, and revolutionary technical support is provided for medical and vehicle-mounted dynamic scenes and the like.

This invention belongs to the field of pile foundation blasting safety protection technology. Addressing the problems of prominent blind spots and cumbersome disassembly and assembly in existing protective devices, it discloses a wellhead flyrock protection device and method for pile foundation blasting, including a mounting frame, a protective body, and a ground nail shell. The protective body is located in the middle of the mounting frame and is filled with a filling layer that hardens rapidly under the action of the blasting shock wave. It has a protective cavity, a transmission slide rod, a piston plate, and a slide rail. The inner wall of the protective cavity is fitted with the blasting material, and the outer wall is made of aramid fiber. The ground nail shell is detachably connected to the mounting frame. Its internal reinforcement structure, through a linkage assembly, drives a claw structure to embed into the ground, improving stability. The bottom baffle of the mounting frame is equipped with a steel mesh, and the outer side is hinged to a side plate. The side plate is linked to the transmission slide rod through an angle adaptive adjustment mechanism, allowing dynamic adjustment of the protection angle. This invention, through graded protection and deep reinforcement design, achieves interception of blasting flyrock under different working conditions, effectively ensuring the safety of pile foundation blasting operations.

The utility model relates to a kind of multi-partition washing machines, including frame and the upper cylinder, lower cylinder being located in frame, small partition structure is also provided between upper cylinder and lower cylinder, the top of frame is provided with the first reinforcing plate connected with upper cylinder by first damping member, the bottom of frame is provided with the second reinforcing plate connected with lower cylinder by second damping member, small partition structure is drawer type cleaning assembly with top drop-off mouth, the middle part of frame is provided with third reinforcing plate, which can be used for installing drawer type cleaning assembly slide rail assembly and can be connected with upper cylinder and lower cylinder through damping structure respectively. Upper reinforcing structure is used for connecting damping member of upper cylinder, lower reinforcing structure is used for connecting damping member of lower cylinder, middle reinforcing structure is used for installing slide rail assembly of drawer type cleaning assembly while being used for connecting upper and lower cylinder reinforcing structure, so as to utilize the mounting structure of drawer type cleaning assembly to reinforce whole machine in the middle part of frame, improve the installation strength, vibration stability of whole machine.

The application belongs to the technical field of nuclear power plant reactor coolant pump driving equipment, and discloses a main pump motor of a nuclear power unit, which comprises an integrated base, a stator, a rotor, a base, an upper bearing assembly and a lower guide bearing; wherein the upper bearing assembly is installed on the upper end of the base, is an integrated bidirectional thrust bearing and an upper guide bearing, and is used for bearing bidirectional axial load; a flywheel is arranged below the rotor iron core and above the lower guide bearing, i.e. between the two side guide bearings; the base is a four-corner support integrated welded structure, and the shape is an unequal octagon. The application improves the maintenance accessibility by arranging the thrust bearing upward, reduces the gravity center of the motor and the vibration of the whole machine by arranging the flywheel downward and between the two side bearings, and improves the assembly precision and load envelope by the integrated base.

The application discloses a kind of highland barley threshing material separation cleaning device, belong to agricultural machinery technical field.The cleaning device includes frame and integrated on it, feeding and detection device, dust absorption and dust removal device, three-stage vibration sieve device, sieve box excitation device, automatic leveling device and automation control system.Feeding and detection device real-time detection material flow, form and moisture content;Three-stage vibration sieve device uses one-stage long waist type sieve, two-stage variable size sieve and three-stage circular sieve, screen size, vibration frequency and sieve plate inclination angle can be self-adaptive adjustment;Dust absorption and dust removal device has independently adjustable double air duct, carries out secondary airflow cleaning.The application is through compound cleaning mode and automation control, significantly improves the cleaning efficiency of highland barley threshing material and grain cleanliness, reduces loss rate, and has automatic leveling function, adapts to plateau uneven ground, realizes the full mechanization operation of highland barley cleaning.

The invention discloses a moving coil supporting and connecting mechanism and a high-frequency vibration testboard comprising the same. The moving coil supporting and connecting mechanism comprises a first supporting and connecting piece and a second supporting and connecting piece, the first supporting and connecting piece comprises a first connecting plate made of a carbon fiber material, the size of the first connecting plate in the circumferential direction of a vibration table top is d11, the size of the first connecting plate in the axial direction of the vibration table top is d12, and d11 is larger than d12; the second supporting connecting piece and the first supporting connecting piece are arranged on the outer side of the moving coil in a staggered mode, the second supporting connecting piece comprises a second connecting plate made of rubber, the size of the second connecting plate in the circumferential direction of the vibration table top is d21, the size of the second connecting plate in the axial direction of the vibration table top is d22, d21 is smaller than d22, and d11 is larger than d21. The vibration table has extremely high vibration stability during high-frequency vibration, and the harmonic distortion degree of the vibration table is also greatly reduced through tests.

This invention relates to the field of shock absorber piston rods, and more particularly to a carbon fiber reinforced hollow spiral rib automotive shock absorber piston rod. The shock absorber piston rod is assembled onto the vehicle body via a mounting component located at its bottom. Assembly mechanisms are provided at the corners of the mounting component. Each assembly mechanism includes a main screw, a slanted post, and a secondary screw. The main screw passes vertically through the mounting component to achieve a fixed assembly with the vehicle body. The slanted post passes obliquely through the main screw to lock it in place. The secondary screw passes through the slanted post to fix it in place. In this invention, the shock absorber piston rod effectively reduces vehicle vibration. The multi-stage locking assembly mechanism, consisting of the main screw, slanted post, and secondary screw, solves the problem of traditional bolts easily loosening under vibration, providing multiple anti-loosening guarantees for the main screw. This improves the vibration resistance stability of the connection point between the shock absorber piston rod and the vehicle body, thereby ensuring vehicle handling safety.