12results about How to "Eliminate vibration" patented technology

The application discloses a kind of robot friction stir welding force-position hybrid control method, it is related to robot welding control technical field, comprising the following steps: step S10 establishes the hybrid strategy model based on constant displacement control and constant pressure control, the trajectory deviation caused by flexible deformation is compensated by robot dynamic offset function;The constant displacement control monitors welding depth in real time by laser sensor, the laser sensor is installed in 45° oblique direction to the outer wall of motorized spindle, and the collection point is located in the front side of the welding advancing direction, to avoid the interference of flash;The constant pressure control is collected axial upset force by six-dimensional force sensor, and force feedback type impedance control strategy is adopted.The robot friction stir welding force-position hybrid control method compensates the flexible deformation of robot by dynamic offset function, combined with the hybrid strategy of constant displacement and constant pressure control, solves the problem of uneven weld forming under single control mode.

The utility model belongs to the technical field of vibrating screen, concretely is a kind of vibrating screen fixing device, including bottom plate, the bottom plate top is fixedly connected with multiple slide bars;The end portion of slide bar is slidably connected with support plate;The support plate bottom is fixedly connected with multiple compression springs;Compression spring is sleeved on the surface of slide bar, and the bottom of slide bar is provided with adjusting assembly;Adjusting assembly and compression spring are contact setting;One pair of air springs is fixedly connected between the support plate and bottom plate;Air pump is arranged in the side wall of bottom plate;Air pump and air spring are connected by air pipe;The range when vibrating screen body shakes can be limited by increasing first clamping block and second clamping block, then the transmitted vibration is absorbed by air spring and compression spring, so that it is quickly eliminated by the absorption diffusion of air spring and compression spring when vibrating, so as to reduce the shaking caused by vibration, make it more stable after placing and reduce position deviation.

This invention discloses a high-speed side-push type carton packing system in the field of packaging equipment technology, including: a frame and a feeding and conveying mechanism, a stacking mechanism, a storage mechanism, an opening mechanism, a packing mechanism, and a sealing mechanism mounted on the frame. The opening mechanism is used to pick up the packaging cartons stacked on the storage mechanism and unfold them so that the opening of the packaging carton faces horizontally. The packing mechanism includes a support and a push plate, a limiting baffle, and a first driving component mounted on the support. This invention abandons the traditional vertical gravity unloading method and instead adopts a side-push horizontal packing method. The first driving component precisely controls the push plate's movement, smoothly pushing the vertically stacked items from the side into the unfolded packaging carton, eliminating the impact and vibration generated during the free fall of materials, avoiding the risk of breakage of fragile items during packing, and ensuring the consistency and integrity of the product's posture before and after entering the carton.

This invention provides a method and system for reactive power coordination control and circulating current suppression in a wind, solar, and energy storage power plant cluster, belonging to the field of power system operation control technology. The method includes: collecting operating data from each substation and calculating a normalized circulating current index; activating a circulating current suppression mode when the index exceeds limits, obtaining the total reactive power target command for the power plant cluster, and identifying the target reactive power direction based on a dead zone threshold; dynamically clamping the upper or lower limits of reactive power output of each substation according to the target direction, generating a unidirectional blocking command to cut off the circulating current loop; and performing margin balancing control in non-suppression mode. This invention eliminates the influence of power plant capacity differences on the criteria through a normalized index, effectively solves the reactive power circulating current and control deadlock problems caused by opposite output by utilizing dynamic clamping logic based on target commands, and integrates voltage safety verification to achieve coordinated optimization of reactive power resources across multiple power plants and stable control of grid voltage.

This utility model discloses a blade structure with aerodynamic damping function in turbomachinery, belonging to the technical field of blade structure technology. It includes a blade, a swing groove, a damping block, a connecting hole, and damping air holes. The swing groove is located at the root of the blade, and the blade has a matching connector for the turbomachinery. The connecting hole is located within the connector. The damping block includes a connecting part, a swing part, and a damping part, all made of elastic material. The connecting part is inserted into the connecting hole, and the damping part is located within the swing groove. The connecting part and the damping part are connected by the swinging part, and the top of the damping part is fixed to the top of the swing groove. Multiple damping air holes are provided through the blade at positions corresponding to the swing groove. This utility model dissipates energy through the elastic swing of the damping block and the damping air holes, without affecting the structural integrity of the overall impeller in the turbomachinery, and suppresses high-order modal vibrations.

This invention provides a continuous stepless adjustment device, method, and application for electron beam based on the axial position control of the convergence point, belonging to the field of electron optics adjustment technology. The invention includes an anode body, an anode aperture, an electromagnetic focusing unit, and a fixed single-aperture main aperture, coaxially arranged along the electron beam propagation direction within the lens barrel of an electron optics system. This invention uses the axial position of the electron beam's convergence point relative to the fixed single-aperture main aperture as the control degree of freedom. The electromagnetic focusing unit continuously adjusts the displacement of the convergence point along the optical axis, achieving continuous stepless adjustment of the electron beam. By completely eliminating the mechanical moving parts of the aperture, this invention not only achieves continuous and smooth adjustment of the electron beam but also fundamentally avoids the vibration, contamination, and failure risks caused by mechanical movement. This significantly improves the reliability, repeatability, and long-term stability of the electron optics system, while simplifying the system structure and reducing manufacturing and maintenance costs.

This invention discloses a vibration-damping check valve, belonging to the field of check valve technology, which solves the problem of large opening and closing vibration in traditional swing check valves. The invention includes a valve body, a main valve cover, an inlet chamber, an outlet chamber, a valve seat, a rocker arm, and a valve disc. A liftable baffle is provided on the left side of the valve seat, and a media-driven drive structure is installed on the upper left of the valve body. The drive structure includes a drive chamber, a drive plate, an anti-rotation drive rod, a drive sleeve with a helical drive groove, a gear pair, and a screw. The linear motion of the drive rod is converted into rotational motion by the drive sleeve, driving the baffle to rise and fall smoothly. A buffer plate is hinged to the lower part of the baffle, forming a buffer mechanism with a buffer cone and a buffer spring. An overflow check valve is provided at the upper end of the valve seat, connecting the closed chamber and the outlet chamber. This invention, through baffle flow control, multi-stage buffering, and overflow pressure relief, slows down the opening and closing speed of the valve disc, eliminates vibration and water hammer, prevents loosening of connecting parts, improves sealing reliability and service life, and is suitable for backflow prevention scenarios in large-diameter, high-pressure pipelines.

This utility model discloses a dual-station winding embedded internal pressure roller mechanism. The internal pressure roller mechanism includes a rodless cylinder, a mounting arm, a drive motor, and a pressure roller. The mounting arm is mounted on the rodless cylinder, and the drive motor and the rotatable pressure roller are fixedly mounted on the mounting arm. The rodless cylinder is positioned corresponding to the first and second winding shafts, and upon startup, it drives the mounting arm to move towards the first or second winding shaft, causing the pressure roller to press against the material on the first or second winding shaft. The drive motor connects to the pressure roller, thus driving the pressure roller to rotate actively upon startup. This utility model pre-drives the pressure roller with the drive motor, synchronizing the pressure roller with the winding speed before pressing, eliminating surface abrasion caused by speed differences. After stable pressing, the power to the pressure roller is removed, eliminating vibration between the pressure roller and the drive motor structure, which is more conducive to obtaining ideal crushing and winding effects, and also achieves energy saving.

This invention discloses a diesel engine throttle control device and a diesel engine. The throttle control device includes a transmission sleeve and a transmission shaft. The transmission sleeve is fitted onto the transmission shaft, and a torsion spring is provided between the transmission sleeve and the transmission shaft. One end of the torsion spring is located on the transmission sleeve, and the other end is located on the transmission shaft. A throttle handle travel hole is provided on the transmission sleeve. The transmission shaft is fixedly connected to a control handle, which extends out of the transmission sleeve through the throttle handle travel hole and can swing within the throttle handle travel hole. An input rocker arm is fixedly connected to the transmission sleeve, and an output rocker arm is fixedly connected to the transmission shaft. The throttle control device of this invention has both automatic and manual throttle control functions. In emergency situations, it can quickly switch to manual control of the diesel engine throttle, is easy to operate, and has a simple structure, thereby simplifying the structure of the diesel engine and reducing its cost.

The application discloses a machining tool for an aircraft landing gear wheel axle mounting seat, and is specially designed for the U-shaped structure of the aircraft landing gear wheel axle mounting seat and the specific layout of the axle holes in the two side walls of the U-shaped structure, a machining tool specially matched with the U-shaped structure and the specific layout of the axle holes in the two side walls is designed, and through the cooperation of a tool bar, a tool disc, an adjusting device and a shoulder guide sleeve, the precise machining of the bushing end face of the specific component is realized, and the technical blank of the special tool in the field is filled up. The manual driving mode is adopted instead of the machine tool power driving, the operator can adjust the feeding speed and the cutting force in real time and steplessly according to the machining state, and the vibration caused by the periodic cutting force fluctuation is avoided. Meanwhile, the guide section with the shoulder guide sleeve is inserted into the axle hole of the mounting seat, rigid support of the tool bar adjacent to the cutting point is provided, and the cutting force arm is shortened. The above-mentioned double effects basically eliminate the phenomena of tool vibration and tool biting in the machining process.

This utility model discloses a double-topped shaft tube synchronous positioning mechanism, including a positioning component, a fixed base, and a feeding component. The positioning component comprises a sliding shaft cylinder and a sliding base. The sliding base is installed on the right side of the fixed base, and the sliding shaft cylinder is slidably installed within the sliding base. The feeding component is installed on the left side of the fixed base. The beneficial effects of this utility model are: by pressing the cutting shaft with the sliding shaft cylinder, axial movement during the cutting process is effectively suppressed; the feeding component presses the paper tube end face circumferentially, eliminating workpiece displacement or vibration, ensuring a clean, burr-free cut, and providing rapid response, achieving good coordination and high efficiency.

The utility model discloses an automatic polishing device of automobile crankshaft, including work table, the rear side of work table is rotatoryly installed with first drive screw rod, is screw -threaded to be installed with mobile seat on first drive screw rod, is rotatoryly installed with polishing machine on mobile seat, the polishing machine is connected with first telescopic cylinder, the front side of work table is rotatoryly installed with second drive screw rod, is screw -threaded to be installed with mounting bracket on second drive screw rod, is rotatoryly installed with adjusting box on mounting bracket, the adjusting box is connected with second telescopic cylinder, is rotatoryly installed with adjusting screw rod in adjusting box, is screw -threaded to be installed with adjusting seat on adjusting screw rod, the adjusting seat is connected with connecting frame, the connecting frame is connected with auxiliary support, is rotatoryly installed with auxiliary pressure wheel on auxiliary support, the utility model discloses set up auxiliary pressure wheel on the other side of polishing machine, and auxiliary pressure wheel carries out dynamic abutment to the polishing position to eliminate the deflection and vibration of crankshaft because of unilateral stress.