21results about How to "Offset the impact" patented technology

This utility model relates to the field of nonwoven fabric processing technology, and in particular to a continuous punching device for nonwoven fabric processing. It includes a worktable, with supports fixedly connected to the upper left and upper right sides of the worktable. An unwinding roller and a take-up roller are respectively installed in the upper part of the two supports. A guide adjustment and limiting structure is fixedly connected to the upper left side of the worktable. Several through-holes for punching are opened in the middle of the upper part of the worktable. This continuous punching device for nonwoven fabric processing achieves continuous conveying of nonwoven fabric through the unwinding and take-up rollers. Utilizing the guide adjustment and limiting structure, punching drive device, and tension roller, it precisely controls the movement and punching process of the nonwoven fabric, effectively solving problems such as easy fabric shifting and wrinkling, easy slippage during punching, and low punching accuracy in traditional punching devices. Overall, it improves punching efficiency and nonwoven fabric processing quality, and enhances the applicability and stability of the equipment.

The utility model discloses a kind of buried garbage can foot switch devices, including protective shell, the protective shell is provided with cover, second fixed pin shaft is provided on protective shell, protective shell is rotatably connected with support by second fixed pin shaft, support upper end is fixedly connected on cover by bolt, switch assembly for separating cover and protective shell is provided on protective shell;When user downwardly treads pedal, pedal drives rotating rod to swing upwards around first fixed pin shaft (movable slot forms limit guide to rotating rod), rotating rod is pushed to move upwards by lower connector by fixing frame, and then drive uncover link to lift upwards;Uncover link is pulled to rotate upwards around second fixed pin shaft by support by upper connector, finally realize the opening of cover, in this process, when fixing frame swings upwards, the piston rod of pneumatic spring will be compressed by second rotating rod, and then make pneumatic spring work, at this time, pneumatic spring provides boost for foot opening cover.

The application discloses a train anti-climbing energy-absorbing device filled with a deformable aluminum foam capsule and belongs to the technical field of anti-climbing energy-absorbing devices. The anti-climbing mechanism comprises a shell, the inside of the shell is provided with a back plate, the end face of the back plate is provided with a first pressure sensor, the end face of the back plate is connected with a hexagonal alloy buffer group, the end face of the hexagonal alloy buffer group is connected with an anti-climbing plate, the end face of the anti-climbing plate is provided with four anti-climbing teeth, the inside of the hexagonal alloy buffer group is provided with a porous aluminum foam, the buffer mechanism comprises a back shell and two elastic capsules, and the inner wall of the back shell is provided with two side shells. When impact occurs, the hexagonal alloy buffer group and the porous aluminum foam cooperate to extrude and buffer, the sliding fit of the clamping shell and the contact plate is achieved, the friction of the moving plate is increased, the alloy cutter head performs a cutting action on the cutting block, kinetic energy is converted into other energy, and the impact force generated by the collision is reduced through multiple structures.

The invention relates to the technical field of asphalt processing, in particular to a drying cylinder material lifting blade anti-abrasion mechanism and a using method. Comprising a drying cylinder body, a plurality of material lifting blade bodies fixedly connected to the inner wall of the drying cylinder body, a plurality of guide plates fixedly connected to the inner wall of the drying cylinder body and self-cleaning units fixedly installed on the material lifting blade bodies. Scraping asphalt which is not completely dried and adhered to the outer wall of the material lifting blade main body; when the multiple chains swing, the knocking balls at the ends of the chains can synchronously move along with swing of the chains, the knocking balls intermittently collide with the outer wall of the material lifting blade body when moving, the completely dried and adhered asphalt on the material lifting blade body can be broken and fall off through collision, and self-cleaning operation on the surface of the material lifting blade body is completed.

The application relates to a drilling technology, in particular to a design method of an elliptical drilling device and a drilling head based on gear transmission control, wherein the drilling device comprises an outer cover structure, an upper end cover is arranged at the upper end opening of a lower outer cover shell, a lower end cover bottom support is arranged at the lower end opening of the outer cover structure, the upper end cover and the lower end cover bottom support enclose the inside of the lower outer cover shell to form a movable cabin; a main transmission rod is arranged in the movable cabin, a drilling head is arranged at the lower end of the main transmission rod, and a transmission structure matched with the main transmission rod is arranged in the movable cabin; under the action of the transmission structure, when the drilling head rotates, the center of the drilling head moves in a reverse revolution motion, and the revolution period is the same as the revolution period. The device can drill an elliptical hole, can better release pressure, and can realize directional pre-splitting. In addition, the device can also drill an elliptical hole, a circular hole, a square hole with four arc chamfered corners, a rectangular hole, a rhombic hole and other double-axial symmetrical smooth curve-shaped holes in one step.

This invention relates to a device and method for measuring the depth of the center hole of a large bearing, belonging to the field of bearing inspection technology. It includes a coordinate measuring instrument with guide rails on both sides. A sliding seat is mounted on the outside of the two guide rails. A first cylinder is mounted at the lower end of the sliding seat, and a fixed base is fixedly connected to the output end of the first cylinder. A rotary motor is mounted at the center of the bottom end of the fixed base, and a rotating disk is fixedly connected to the output end of the rotary motor. Industrial cameras are fixedly connected to the bottom ends of both sides of the fixed base. A centering component is mounted at the bottom of the rotating disk, which positions the center of the bearing using probes. A roundness measuring component is mounted on one side of the centering component, used to detect the roundness of the bearing. This invention achieves automatic calculation and calibration of the center position by using the centering component and dual probes for coordinated positioning, combined with the data analysis function of the coordinate measuring instrument.

According to the rotor position data calculation method of the magnetic drive conveying system and the related equipment, the magnetic drive conveying system comprises a stator and a rotor, the stator is provided with a transmitting assembly and a receiving assembly, and the rotor is provided with an induction component. Controlling the emission assembly to emit an excitation signal at the initial emission power, wherein the excitation signal is used for making the induction part generate an induction magnetic field; acquiring real-time air gap state data generated by induction of the induction magnetic field by the receiving assembly; the real-time transmitting power of the transmitting assembly is adjusted based on the real-time air gap state data, so that the amplitude of the induction electric signal output by the receiving assembly is maintained in a preset linear interval; and the position data of the rotor is calculated based on the induction electric signal in the preset linear interval, so that the data accuracy of the rotor position data acquired in real time in actual operation of the magnetic drive conveying system is improved.

The invention provides a mirror image-based IQ calibration method and system for an integrated tester, and the method comprises the following steps: carrying out the IQ imbalance calibration: enabling the integrated tester to calibrate the IQ imbalance of the integrated tester based on an IQ method, and obtaining a calibration result of the IQ imbalance; and signal compensation: when the comprehensive tester analyzes the actual signal, compensating the received and transmitted signal based on the calibration result so as to counteract the influence of the mirror image IQ of the comprehensive tester on the signal. The method has the beneficial effects that the received signal can be compensated when the comprehensive tester analyzes the actual signal, and the effect of counteracting the influence of the mirror image IQ of the local oscillator on the signal is achieved.

The utility model relates to the technical field of power pipelines, in particular to a power cable conduit with a pipe orifice protection structure, which comprises a cable conduit body and a protector, the end part of the cable conduit body is movably sleeved with the protector, the protector internally comprises two fixing frames, and the fixing frames are fixed on the cable conduit body. The two fixing frames are symmetrically distributed about the central axis of the cable tube body. Through a buffer structure composed of the first compression-resistant air bag, the second compression-resistant air bag, the air inlet hole, the ball plug and the exhaust hole, when the first compression-resistant air bag on the outer layer is impacted, air in the air bag rushes against the ball plug to enable the ball plug to be separated from the air inlet hole and enter the second compression-resistant air bag through the vent hole and the air inlet hole, so that the interior of the second compression-resistant air bag is in a pressurized state; and after the impact force disappears, the pressure-resistant air bag II recovers the positive pressure, so that the air slowly returns to the pressure-resistant air bag I through the exhaust hole for the next impact, and the effect of buffering in time is achieved.

This invention provides a seat, a vehicle comfort system, and a vehicle, relating to the field of vehicle seats. The seat includes: a seat panel and a seat base; multiple seat supports are fixed to the bottom of the seat panel, each seat support having a pulley at its bottom; the seat base has multiple transverse tracks on its concave surface; the pulleys are slidably connected to the multiple transverse tracks; a central pulley is slidably connected to the central track, and the central pulley is positioned within a concave area under preset conditions; the top of the central seat support is fixedly connected to the center of the bottom of the seat panel via an elastic device. When the centrifugal force is large, the pulley slides towards the direction of the centrifugal force, causing the seat panel to make a small circular motion. The seat base applies a lateral force to the seat panel opposite to the direction of the centrifugal force, attenuating or even offsetting the adverse effects of centrifugal force on occupants, reducing the probability of personal injury. The seat as a whole achieves vibration reduction in lateral, vertical, and centrifugal forces.

The application discloses a push-pull hydrophone, which comprises an inner elastic base cylinder sleeved on an optical cable, the inner wall of the inner elastic base cylinder is attached to the outer wall of the optical cable; an outer elastic base cylinder is nested on the inner elastic base cylinder, the inner elastic base cylinder and the outer elastic base cylinder are connected through a support rod, and a gap for seawater flowing through is formed between the inner elastic base cylinder and the outer elastic base cylinder; the outer wall of the inner elastic base cylinder and the outer wall of the outer elastic base cylinder are both axially wound with sensing optical fibers, the sensing optical fibers are connected with an external demodulator, the outer side of the outer elastic base cylinder is covered with a shell, and an air cavity is formed between the shell and the outer wall of the outer elastic base cylinder. The hydrophone can be matched with the existing submarine optical cable based on the existing submarine optical cable, and the hydrophone does not need to be separately connected into an array.

This invention relates to the field of milling equipment technology, and discloses a milling device for processing automotive parts, including a processing table, and further including: a milling mechanism installed on the top of the processing table, the milling mechanism including a tool holder, the milling mechanism being used to install and fix milling cutters; and pre-pressing components installed on both sides of the milling mechanism, the pre-pressing components including guide plates; in this invention, when the lifting cylinder drives the tool holder to feed downwards, the tool holder drives the pre-pressing components on both sides to descend synchronously, and the pressure block will contact the peripheral top surface of the processing position of the automotive sheet metal part one step in advance. Under the elastic pre-tightening action of the compression spring, the pressure block tightly presses the periphery of the processing position against the top surface of the base, completing the top pre-pressing positioning before milling. In this way, when the milling cutter head feeds the workpiece, it can effectively avoid the slight vibration displacement of the milling position caused by the impact force of the tool feed, ensuring the processing accuracy of groove milling.

The utility model discloses a kind of blasting safety protection buffer baffle, including fixed seat, protection assembly and buffer assembly, protection assembly is arranged at the side of fixed seat, buffer assembly is arranged inside the fixed seat.The function of the utility model is that removable protection baffle is replaced, after the service life of baffle is reached by flying rock impact and causes baffle breakage, the replacement of protection baffle is facilitated, simple and convenient;While providing support for protection baffle, the damage degree of protection baffle is reduced, the service life of protection baffle is prolonged, and telescopic rod can produce elastic buffer to connecting place, reduce the hard friction damage of connecting place, increase the service life of device whole.

The invention discloses a device for detecting the spraying quality of a steel structure, and the device comprises a tail end telescoping mechanism which is used for adjusting the vertical position of a tail end actuator; the stand column rope outlet mechanisms are evenly distributed on the outer side of the tail end telescopic mechanism, the flexible rope ends of the stand column rope outlet mechanisms are connected with the top end of the tail end telescopic mechanism, and the stand column rope outlet mechanisms are used for adjusting the horizontal position of the tail end actuator; the tail end anti-swing mechanisms are uniformly distributed and fixedly arranged at the top end of the tail end telescopic mechanism, so that the flexible cable always keeps a certain pre-tensioning force in the pulling process; the tail end posture adjusting mechanism is used for adjusting the circumferential posture and the pitching posture of the tail end actuator; the camera is used for performing phase detection on the to-be-detected part; and the gravity compensation mechanism is used for outputting elastic compensation force matched with the gravitational torque generated by the tail end posture adjusting mechanism. The device can give consideration to large output torque, high motion precision and environmental interference resistance, so that the end effector is light in load and more flexible in attitude adjustment, and efficient and stable detection is realized.

The invention discloses an unmanned aerial vehicle surveying device for surveying and mapping geographic information, and belongs to the field of unmanned aerial vehicle surveying. Comprising an unmanned aerial vehicle body, and a monitoring mechanism is arranged at the bottom of the unmanned aerial vehicle body; a plurality of supporting mechanisms are arranged at the bottom of the unmanned aerial vehicle body and located on the outer side of the monitoring mechanism. A floating mechanism is arranged between the two supporting mechanisms which are opposite front and back; the monitoring mechanism comprises a monitoring camera, and the top of the monitoring camera is in threaded installation with the bottom of the unmanned aerial vehicle body through a bolt; a guide rail is arranged on the left side of the monitoring camera; in order to solve the problem that the surveying and mapping camera is exposed for a long time, an openable and closable closed protection structure is additionally arranged, the camera can be completely closed during non-surveying and mapping operation, dust, water vapor, chippings and other sundries are effectively prevented from adhering to or eroding a lens, the lens abrasion and fouling probability is greatly reduced, the high-definition precision of aerial survey images is guaranteed, the service life of the camera is prolonged, and the working efficiency is improved. The equipment maintenance cost is reduced.

This application discloses a baffle-adjustable metal cutting machine, relating to the field of cutting machines. It includes a base, a cutting component, a depth control component, and an angle control component. When adjusting the angle, simply rotating the gripper plate moves the extrusion column upwards to release the extrusion. Then, the fixed toothed ring is lifted by the protrusions on both sides of the fixed toothed ring, allowing the adjustment plate to be moved. When vibration during cutting causes the extrusion column to loosen its pressure on the abutment plate, the fixed toothed ring is limited by the action of the compression spring and the counterweight, thus preventing the abutment plate from rotating. When the vibration of the workpiece causes the threaded rod to loosen, resulting in axial movement of the threaded rod, the connecting sleeve moves the insertion plate synchronously. The movement of the insertion plate, through the toothed grooves on its outer surface, causes the limiting plate to move laterally. Under the action of the compression spring, the limiting plate is reset, thereby resetting the insertion plate. This achieves the counteracting of the vibration's effects and prevents loosening of the workpiece due to vibration during cutting.

The present application belongs to the field of optical spectrum interference displacement measurement, and discloses a spectrum interference displacement measurement system and method with adjustable working distance based on a fiber double Fizeau structure. The system comprises a light source, a first fiber circulator, a second fiber circulator, a first light path, a second light path, a spectrometer and a computer. The first light path is provided with a first fiber collimator, a first flat beam splitter and a mirror, and the mirror is installed on a manual linear displacement stage. The second light path is provided with a second fiber collimator, a second flat beam splitter and a measured sample. The interference light generated by the two Fizeau structures converges at the second fiber circulator, and the change of the optical path caused by the change of the working distance of the second light path is compensated by adjusting the position of the mirror, so that the working distance is flexibly adjusted. The present application has the advantages of arbitrary adjustment of the working distance, strong anti-interference ability of the common light path, small volume and low cost of the all-fiber structure.

The utility model relates to the technical field of aluminum alloy plates, and discloses an aluminum alloy battery tray which comprises an aluminum alloy tray body, and a partition plate and a limiting plate are welded and fixed in a cavity of the aluminum alloy tray body. A bottom plate; buffering plates are fixedly installed on the two sides in the aluminum alloy tray cavity, and the side face energy absorption assembly is arranged between the buffering plates and the inner side face of the aluminum alloy tray cavity. And the protection assembly comprises a circular ring, a push rod and a push column. The partition plate and the limiting plate are arranged in the cavity of the aluminum alloy tray, limiting installation of the battery pack is facilitated, the rigidity of the aluminum alloy tray is further improved, and the side face energy absorption assembly is arranged between the buffer plate and the inner side face of the cavity of the aluminum alloy tray and used for energy absorption protection during collision. The battery is prevented from being damaged after the side edge of the aluminum alloy tray is damaged, and then spontaneous combustion of the battery is caused, the battery is further protected by arranging the protection assembly, the protection upper limit of a product is improved, and the safety requirement of a vehicle is met.

This utility model discloses a voltage measuring device for subway power transmission, relating to the technical field of voltage measuring devices. To address the problem that high humidity in subway tunnels leads to oxidation of the metal pins of Hall sensors over time, increasing contact resistance by 2-10 times and causing signal output attenuation, potentially resulting in an open circuit, a terminal is provided at the middle of the lower end of the Hall sensor body. A terminal connection end is provided on the front side of the lower end of the terminal, and a locking screw adjustment end is provided on the upper end of the terminal. A first sealing cover is rotatably mounted on the front side of the terminal connection end via a hinge, and a second sealing cover is rotatably mounted on the upper end of the locking screw adjustment end via a hinge. A wire groove is formed at the middle of one end of the first sealing cover near the center of the terminal connection end. A sealing rubber ring is fixedly fitted to the inner wall of the wire groove. Buckles are provided at both ends of the connection between the two first sealing covers, located on both sides of the wire groove.

Embodiments of the present application provide a fingerprint identification sensor and a driving method thereof, and a display device, and relate to the technical field of display, to improve the accuracy of fingerprint identification. The fingerprint identification sensor comprises a fingerprint identification circuit, the fingerprint identification circuit comprises a first node, a photosensitive element and a control module, the photosensitive element is electrically connected with the first node and a common voltage structure respectively, the common voltage structure is used for providing a common voltage signal, the control module is electrically connected with a control signal line, and the control module is further coupled with the first node; when the control signal provided by the control signal line jumps from a non-enabled voltage to an enabled voltage, the common voltage signal jumps from a first voltage to a second voltage, (Ve-Vne)×(V2-V1) < 0, Vne is the voltage value of the non-enabled voltage, Ve is the voltage value of the enabled voltage, V1 is the voltage value of the first voltage, and V2 is the voltage value of the second voltage.

The invention relates to the technical field of industrial automation control simulation, and discloses an autonomous and controllable domestic DCS simulation method, which comprises the steps of building a comparison verification platform, selecting a typical industrial scene for analysis, evaluating simulation precision, adjusting model parameters and performing iterative optimization, and optimizing engine scheduling to guarantee real-time performance. According to the method, the modularized simulation model is constructed and comprises the controller, the IO module, the field equipment and the communication link simulation sub-model, and the feedforward compensation amount is introduced, so that the influence of parameter fluctuation on simulation output is effectively counteracted, and the real-time performance and the stability of simulation are remarkably enhanced. Besides, due to integrated application of an independently researched and developed multi-thread parallel resolving engine and a domestic communication chip, bidirectional real-time interaction with DCS hardware is achieved, simulation precision evaluation and model parameter iterative optimization are carried out by building a comparison verification platform and selecting a typical industrial scene, the applicability of a simulation model is improved, and engine scheduling is optimized.