24results about How to "Reduce momentary impact" patented technology

The utility model relates to unmanned aerial vehicle detection technical field especially, it relates to a steel structure unmanned aerial vehicle detection device, including detection platform, the surface of detection platform places unmanned aerial vehicle, the surface fixed connection of unmanned aerial vehicle has detection device, the inside buffering assembly of detection platform is provided with, buffering assembly includes device groove, the utility model discloses through the setting of detection platform and buffering assembly, when unmanned aerial vehicle landing, its impact kinetic energy can drive landing plate compression first spring to high -efficiently convert the elastic potential energy of spring for the impact force, realize smooth buffering, this process can effectively attenuate the instantaneous impact that unmanned aerial vehicle and detection device bear, greatly promoted the landing security, after the end of buffering, the device can lock quickly, provides a stable rigid platform for subsequent detection task.

This invention relates to the field of meat cutting technology and discloses a meat cutting device for food production, comprising: a rotating cutting blade in the shape of a grid cylinder with a cutting edge on the outer ring side; a base that partially surrounds the lower side and a horizontal side of the cutting blade; an arc-shaped surface located inside the base and corresponding to the cutting blade, with the distance between the lower end of the arc-shaped surface and the cutting blade gradually decreasing upwards; the meat to be cut enters through the gap between the lower end of the arc-shaped surface and the cutting blade, moves around the outside of the cutting blade, and gradually enters the inner side of the cutting blade grid to be cut into meat pieces; a pressing component located above the cutting blade, pressing down on the grid corresponding to the cutting blade, causing the meat pieces within the grid to pass through the cutting blade and fall; this invention utilizes the rotation of the cutting blade to bring the meat to be cut into the gap between its outer side and the arc-shaped surface, the arc-shaped surface causing the meat to gradually enter the inner side of the grid to be cut into meat pieces, and the pressing component to separate the meat pieces from the cutting blade, achieving one-time cutting into pieces, with the characteristics of no obvious impact and a stable cutting output process.

The utility model discloses an urban river channel revetment structure integrating landscape and ecological functions, and relates to the technical field of river channel revetments, the urban river channel revetment structure comprises a slope body and green plant modules, a plurality of supporting structures are uniformly arranged on two sides of the slope body along the slope direction, and the top surfaces of the supporting structures are horizontally arranged; the two ends of the bottom wall of each green plant module are erected on the top walls of the two supporting structures at the same height correspondingly. The device has the advantages that the diversity and adaptability of a plant-rock-soil body system in the conventional technology can be improved, and the challenges faced by the plant survival rate and the landscape effect in different water level stages (the wet season, the flat season and the dry season) of a river are effectively solved. And meanwhile, the problem of local water flow accumulation caused by rain wash in a heavy rainfall season and the phenomenon of unstable growth of bank slopes and green plants caused by the problem can be effectively solved.

The invention discloses a crankshaft belt pulley structure, an engine and an automobile, and relates to the technical field of automobiles, the crankshaft belt pulley structure comprises a first wheel body, a second wheel body and a first buffer piece, the second wheel body and the first wheel body are arranged on the same axis, a first connecting part is arranged on one end face, opposite to the first wheel body, of the second wheel body, and a second connecting part is arranged on the other end face of the second wheel body; the first buffer piece is arranged on the end face, corresponding to the second wheel body, of the first wheel body, and a second connecting part used for being connected with the first connecting part is arranged on one side of the first buffer piece. According to the technical scheme, a traditional integral crankshaft belt pulley structure is arranged to be a split type installation structure, the structure is compact and reliable, meanwhile, later replacement and maintenance work is facilitated, the later maintenance cost can be effectively reduced, compared with a traditional integral structure, the buffering effect of the crankshaft belt pulley is excellent, and the service life of the crankshaft belt pulley is prolonged. The method has good application value.

The invention discloses a blanking device of a belt conveyor, which relates to the technical field of belt conveyors and comprises a first conveying belt. A protective cover is arranged at the upper part of the first conveying belt; the bottom end surface of the protective cover is fixedly connected with a blanking pipe; the bottom end face of the blanking pipe is fixedly connected with a three-way blanking frame; the left lower part of the three-way blanking frame is fixedly connected with a first articulated chute; and the right lower part of the three-way blanking frame is fixedly connected with a second articulated chute. Through the arrangement of the first material blocking steel rail and the second material blocking steel rail, a material accumulation area can be formed on the first mounting steel plate or the second mounting steel plate, vibration generated when materials are impacted is absorbed, and the vibration generated when the materials are impacted is further absorbed through the first buffer block and the second buffer block; the problem that bulk materials with large particle sizes contain huge kinetic energy, when falling onto a baffle plate, the bulk materials are prone to generating large impact on the baffle plate, the baffle plate vibrates, and then large noise is generated is solved.

The invention relates to the technical field of image processing, in particular to an efficient image compression and decompression method based on an FPGA (Field Programmable Gate Array), which comprises the following steps: S1, preprocessing and blocking image data: dividing the image data into a plurality of size-adjustable sub-blocks; s2, initializing a distributed compression task: initializing the distributed compression task; s3, distributed compression scheduling based on current switching frequency optimization: monitoring the current switching frequency in an FPGA chip in real time, and dynamically adjusting a scheduling scheme of a distributed compression task; s4, fault-tolerant data verification and redundancy detection: automatically completing error marking and correction operations; s5, performing distributed data decompression and synchronous output: performing distributed decompression operation on the compressed image data; according to the invention, the instantaneous impact of high-frequency current switching on the power supply is reduced, and the problem of local overload is avoided, so that the stability of the system under a high-load condition is guaranteed.

A bridge rectifier capable of improving insulation and voltage endurance capability relates to the technical field of semiconductors. Comprising a positive frame, a negative frame and an alternating-current frame, through the design of the frame structure and the layout, a plurality of uniformly distributed long round holes are formed in the area close to the glue inlet, the hole edges of the long round holes are of semicircular angle structures, the hole long axis direction is perpendicular to the main flow direction of a plastic package material, and the hole structures form a transverse turbulent flow barrier, so that stress can be guided to be transmitted in multiple directions; and compared with uniform radial diffusion of a circular hole, concentrated impact force can be decomposed into multiple strands of vortexes more effectively, and instantaneous impact on the frame is reduced. And meanwhile, the right-angle edge easily causes the molding compound to be cured in advance to form an insufficient filling area, the hole edge fillet design can reduce backflow of the molding compound, local pressure sudden change is avoided, and the filling uniformity is improved. On the premise that the thickness of the frame is not increased, the risks of deformation and insulation failure caused by plastic packaging stress are reduced.

The utility model discloses a novel electric energy meter or collection terminal is with intelligent charging circuit, including voltage reducing module U4 and load VCAP, voltage reducing module U4 is provided with input terminal pin VIN, output terminal pin SW and feedback terminal pin FB, output terminal pin SW electric connection has energy storage inductance L5, energy storage inductance L5 is connected with access point VCC through the conducting wire, energy storage inductance L5 and access point VCC between have filter capacitor C30, filter capacitor C16 and filter capacitor EC8 in proper order, be provided with diode D25 between charging resistance and load VCAP. The utility model is provided with triode Q5, forms the clamping circuit through, and utilizes the VEB constant voltage difference of triode when power on, makes U4 output voltage be clamped and always exist fixed voltage difference with farad capacitor, and the power supply circuit is protected in the power-on instant, prevents charging current overload, guarantees the stable reliable normal operation of product, reduces the instantaneous impact to power grid simultaneously, makes the product effectively restrain the interference or influence to power grid.

The invention provides a pit digging mechanism, pit digging equipment and a pit digging method for a floor support plate. The pit digging mechanism comprises one or more pit digging assemblies. The pit digging assembly comprises a first pit digging disc and a second pit digging disc; the floor support plate comprises a bending line; the first pit digging disc and the second pit digging disc correspond to the inner side and the outer side of the bending line respectively, the first pit digging disc comprises a plurality of pit digging columns which are arranged at intervals in the circumferential direction, the second pit digging disc comprises a plurality of pit digging recesses which are arranged at intervals in the circumferential direction, and when the bending line passes through the passing space in the feeding direction, the first pit digging column and the second pit digging recess are separated from each other. The first pit digging disc and the second pit digging disc rotate oppositely, and the multiple pit digging columns and the multiple pit digging recesses are sequentially and correspondingly embedded so that multiple pits can be stretched out of the bending lines between the multiple pit digging columns and the multiple pit digging recesses. By applying the technical scheme, the pit digging mechanism, the pit digging equipment and the pit digging method of the floor support plate can be provided, and an accurate pit structure can be formed at the bending line of the floor support plate.

The present invention discloses a front door ring for an automobile, comprising: an automobile A-pillar including an upper section of an A-pillar and a lower section of an A-pillar, wherein the upper section of the A-pillar has a first soft zone for welding with a roof cross beam; an automobile B-pillar including an upper section of a B-pillar and a lower section of a B-pillar; a front door sill whose front and rear ends are respectively fixed to the rear side of the lower part of the lower section of the A-pillar and the front side of the lower part of the B-pillar; a rear door sill fixed to the rear side of the lower section of the B-pillar; the upper section of the A-pillar except the first soft zone, the lower section of the A-pillar, the upper section of the B-pillar, the front door sill and the rear door sill are all hard zones, and the lower section of the B-pillar is a second soft zone. The present invention also discloses a manufacturing method of the above automobile front door ring and an automobile including the above automobile front door ring. The automobile front door ring, the manufacturing method thereof and the automobile provided by the present invention have the advantages that the automobile A-pillar and the roof cross beam are not prone to cracking, the front door ring has good buffering performance, can shrink and absorb energy when impact occurs, and can control the deformation of the front door ring, which is beneficial to protecting the heads of drivers and passengers, and has good safety.

The present application belongs to the general vehicle technical field, specifically relates to the device for monitoring brake system, especially relates to the gas tank pressure sensor for tractor and working method thereof, wherein one kind of gas tank pressure sensor for tractor includes: connecting assembly, including: positioning disc, is communicated with gas tank through air hole, first adjusting plate and second adjusting plate all extend along the positioning disc radially, and are oppositely arranged, and the first adjusting plate is suitable for inserting into the second adjusting plate, linkage is rotatably arranged on the side wall of positioning disc, and is suitable for driving the first adjusting plate and the second adjusting plate to move apart or close, air passage is arranged in the inside of positioning disc, first adjusting plate and second adjusting plate, for communicating gas tank and pressure sensor, wherein the linkage is driven to move apart when the first adjusting plate and the second adjusting plate when forward rotation, to make air hole and air passage communicate, the linkage is driven to move close when the first adjusting plate and the second adjusting plate when reverse rotation, to make air hole and air passage disconnect.

The novel piston rod of the hydraulic cylinder comprises a piston rod body matched with a cylinder body of the hydraulic cylinder, a hydraulic damper is fixedly arranged at the end, located outside the cylinder body, of the piston rod body, and a connecting lug ring is fixedly arranged on a telescopic rod of the hydraulic damper. A telescopic rod of the hydraulic damper and the end, located outside the cylinder body, of the piston rod body are jointly sleeved with a buffering sleeve, one end of the buffering sleeve is fixedly connected with the peripheral wall of the telescopic rod of the hydraulic damper, and the other end of the buffering sleeve is of an opening structure. And a buffer spring is arranged on the peripheral wall of the hydraulic damper in the buffer sleeve in a sleeving manner. A telescopic corrugated protective cover is arranged at the position, located between the cylinder body and the buffering sleeve, of the piston rod body in a sleeving mode. The hydraulic cylinder can prevent the piston rod from deforming instantly during working, and the service life of the piston rod and the service life of the whole hydraulic cylinder can be prolonged.

The utility model discloses a permanent magnetic ferrite magnetic shoe forming die capable of inhibiting generation of invisible cracks, which comprises an upper die, a middle die and a lower male die, a base is arranged on the bottom surface of the lower male die, a buffer block is arranged between the lower male die and the base, a through hole is arranged in the buffer block, a first spring is arranged in the through hole, and a second spring is arranged in the first spring. The two ends of the first spring are fixed to the lower male die and the base correspondingly. The buffer block and the first spring are arranged below the lower male die, so that when the upper die is pressed downwards, the buffer block and the first spring can absorb impact and relieve instant impact of forming pressure on a magnetic tile blank, stress concentration caused by rigid contact is avoided, and invisible cracks in the magnetic tile blank are reduced. The limiting columns are arranged to limit the deformation quantity of the buffer blocks and the first springs, normal forming of the magnetic shoe is prevented from being influenced by excessive deformation, and meanwhile, the elastic pads are arranged below the limiting columns to prevent the limiting columns from causing impact when making contact with the base to influence forming of the magnetic shoe.

The automatic punching equipment for producing and machining the automobile shock absorber comprises a left side plate, supporting rods are connected to the top and the bottom of the right side of the left side plate in a bolted mode, a sliding rod is fixedly sleeved with the supporting rods, connecting rods A are connected to the front end and the rear end of the bottom of the sliding rod in a bolted mode, and a sliding sleeve is slidably connected to the rear end of the surface of the sliding rod in a sleeved mode. A limiting groove is slidably connected to the back face of the limiting block; a threaded sleeve is bolted to the back face of the limiting groove; a threaded rod is in threaded connection with the interior of the threaded sleeve; clamping plates are bolted to the back face of the connecting rod A and the front face of the connecting rod B, and a protection mechanism is arranged at the bottom of the left side plate. According to the automobile shock absorber punching device, the quality, efficiency and safety of punching machining of an automobile shock absorber are improved, and meanwhile the comprehensive production cost is reduced; high-frequency vibration energy in equipment operation can be absorbed, instantaneous impact can be buffered, fatigue loss of key components such as a drill bit, a guide rail and a bearing is reduced, and the overall service life of equipment is prolonged.

The application relates to the technical field of injection molds, in particular to a high-efficiency and high-speed injection mold and a use method thereof, and solves the problem that products are attached to a fixed mold or a movable mold after injection by a general plastic injection mold, a demolding mechanism needs to be installed on the fixed mold and the movable mold, a ejector pin is generally used for demolding, the ejector pin is rubbed with the mold for a long time, wear is caused, a gap is caused between the ejector pin and the mold, and the overall shape of a product is affected. The injection mold comprises an injection system, a screw extruder, and raw material melting equipment, the raw material melting equipment is used for melting raw materials and extruding injection into a mold cavity, the injection mold body comprises an upper mold plate and a lower mold plate, a fixed mold fixing plate and a movable mold fixing plate are arranged between the upper mold plate and the lower mold plate. The ejection module needs to be installed in at least one of the fixed mold or the movable mold, the product can be stably adsorbed to the fixed mold or the movable mold, subsequent demolding is facilitated, and the manufacturing cost of the equipment is reduced.

This utility model discloses a heavy-duty guide rail anti-friction performance testing device, belonging to the technical field of testing equipment. It includes a guide rail rod, with both sides of the guide rail rod assembled with a testing base fixed to the ground. A slider is slidably mounted on the guide rail rod. The device also includes: a cavity seat located at the upper part of the testing base at the end of the guide rail rod; a baffle located at the front end of the cavity seat; and a pneumatic plate located inside the cavity seat. When the slider, carrying a weight, slides horizontally along the guide rail rod track and collides with the baffle, the baffle, through a connecting rod, drives the pneumatic plate to squeeze the rear chamber of the cavity seat. Air sealing plates fixed to both sides of the baffle move synchronously with the rubber plates. The air sealing plates block the air ports on both sides of the cavity seat, and gas flows into the inner cavity of the rubber plates fixed to both sides of the cavity seat through the air guide pipes on the air sealing plates. Through the synergistic effect of the three-stage buffer, damage to the sensor element due to collision is effectively avoided, ensuring that the sensor can work stably and reliably throughout the entire testing process.

The invention belongs to the technical field of extracorporeal circulation control, and discloses an artificial heart-lung machine multi-pump cooperative control system which comprises a main circulation loop, an auxiliary recovery loop, a pump set, a parameter acquisition unit and a control unit. The control unit is used for determining the target single-time feedback amount and controlling the recycling pump to perform feedback for several times according to the perfusion flow, the drainage flow, the venous pressure, the blood storage liquid level and the recycling liquid level, collecting parameters again after feedback, judging feedback conditions again, and entering a limited safety mode when collection is abnormal. The system is used for multi-pump cooperative control in the extracorporeal circulation process of the artificial heart-lung machine.

This application discloses a flexible guardrail device for new energy vehicles, belonging to the field of flexible guardrails. It includes: a mounting frame with a rectangular frame structure; a crossbar fixed in the middle section of the mounting frame; a buffer plate installed below the mounting frame; a sealed cavity inside the buffer plate; an embedded plate protruding from the bottom of the mounting frame, embedded within the sealed cavity; a buffer spring installed within the sealed cavity; a flexible buffer air cushion installed at the bottom of the buffer plate; fixing components installed at the four corners of the top of the mounting frame; and fixing components symmetrically installed on the crossbar. The beneficial effect of this application is that it provides a flexible guardrail device for new energy vehicles, effectively preventing deformation or damage to the battery box due to localized stress, achieving multi-directional impact absorption, providing progressive buffering during collisions, reducing instantaneous impact on the bottom of the battery box, and protecting the delicate internal structure of the battery.

The application discloses a paint spraying and scraping robot and a control method thereof. The method comprises the following steps: before a first scraper performs scraping on a construction surface, a mechanical arm and the first scraper are controlled to be in a working state in which an elastic member forms a preset compression amount, so that the elastic member can be elastically supported during the scraping; during the scraping of the first scraper on the construction surface, force data of the elastic member is continuously acquired, and a state change of the elastic member is determined according to the force data; the state change is compared with a preset condition, and according to a comparison result, the mechanical arm drives the first scraper to move on the construction surface or drives the first scraper to move away from the construction surface. The application can form a pre-pressing buffer by using the elastic member, and dynamically adjust the movement of the mechanical arm based on the force change, so that the contact impact caused by the ups and downs of the construction surface and the accumulation of the paint and the control lag influence are reduced, and the contact stability, continuity and construction quality in the scraping process are improved.

The utility model relates to the field of floating type sealing assemblies, and particularly discloses a floating type sealing assembly which comprises a sealing body, the sealing body comprises a mounting cavity, a first opening and a second opening, the first opening and the second opening are respectively provided with a first sealing piece, and a second sealing piece is arranged in the mounting cavity. The outer wall of the second sealing piece abuts against the inner wall of the mounting cavity, the second sealing piece is in sliding fit with the inner wall of the mounting cavity, the second sealing piece is provided with a hollow cavity of an annular structure, the axis of the hollow cavity coincides with the axis of the second sealing piece, and drainage grooves are formed in the positions, located on the two sides of the second sealing piece, of the sealing body and communicate with the mounting cavity. The sealing body is connected with the working equipment through the second opening, the first sealing piece at the second opening can effectively reduce instantaneous impact of lubricating oil, the lubricating oil in the working equipment can enter and exit from the mounting cavity through the drainage groove, the instantaneous impact of the lubricating oil can be further reduced, and the stability of the working environment in the working equipment can be effectively enhanced.

The invention relates to the technical field of file box conveying, in particular to a positioning, guiding, deviation rectifying and buffering mechanism of an automatic file box warehousing conveying line, which comprises a conveying belt and a conveying motor arranged on one side of the conveying belt, and the conveying motor is used for driving the conveying belt to rotate and convey; the positioning and screening assembly is arranged on one side of the conveying belt, and the positioning and screening assembly comprises a positioning and guiding module and a waste screening module; and the deviation rectifying and buffering assembly is arranged at one end of the conveying belt. Compared with the prior art, by arranging the deviation rectifying and buffering assembly, a rotating roller is supported through a positioning wheel, and a rotating motor drives the rotating roller to rotate, so that a plurality of sets of buffering flow guide plates circularly receive file boxes, and a second centering limiting block is matched for secondary centering limiting and accelerated guiding of an inclined section of the top of a conveying face; and the posture before warehousing is more stable, the impact is smaller, and continuous discharging is more reliable.

This invention discloses a material discharge device for a belt conveyor, relating to the field of belt conveyor technology. It includes a first conveyor belt; a protective cover is provided on the upper part of the first conveyor belt; a material discharge pipe is fixedly connected to the bottom end face of the protective cover; a three-way material discharge frame is fixedly connected to the bottom end face of the material discharge pipe; a first chute is fixedly connected to the lower left part of the three-way material discharge frame; and a second chute is fixedly connected to the lower right part of the three-way material discharge frame. The arrangement of the first and second material-blocking rails creates a material accumulation area on the first or second mounting steel plate, absorbing the vibration generated during material impact. Furthermore, the first and second buffer blocks further absorb the vibration generated by the impact, solving the problem that large-particle bulk materials contain enormous kinetic energy, easily causing significant impact on the barrier plate when falling onto it, leading to vibration and thus significant noise.

The present application provides a cylinder control method, system and device based on a reversing valve, which calculates the difference between the real-time position of the cylinder before the cylinder is triggered and the preset reference position as the first control deviation value, and then compares it with the reference value, and then supplies power to the reversing valve and controls the cylinder to rise or fall according to the power supply result; and calculates the difference between the real-time position of the cylinder in the cylinder trigger state and the preset reference position as the second control deviation value to compare with the first cylinder switch line, and closes the reversing valve according to the comparison result to control the cylinder movement speed to zero; finally, obtains the static deviation value, and calculates the second cylinder switch line based on the static deviation value, and replaces the first cylinder switch line with the second cylinder switch line, so that the static deviation value at the next moment is less than the current moment. The present application can ensure that the static deviation value when the cylinder movement speed is zero becomes smaller and smaller by iterative learning of the cylinder switch line, thereby improving the accuracy of the cylinder positioning control system.

The utility model discloses a stamping die for a television back plate, which comprises a base, a supporting seat is fixedly mounted at the center of the bottom in the base, a damping pad is fixedly connected to the upper end of the supporting seat, a fixed die is fixedly connected to the top of the damping pad, a protective cover is arranged outside the fixed die, and the protective cover is fixedly connected to the upper end of the supporting seat. A rack is fixedly installed in the center of one side of the protective cover, and the lower end of one side of the rack is connected with a gear in an engaged mode. According to the stamping die for the television backboard, through the design of a protective cover, a gear, a motor, a rack, a sliding rail and a sliding piece, the motor drives the gear to rotate, through meshing of the gear and the rack, the rack drives the protective cover to move up and down along with rotation of the gear, and in the stamping operation process, the protective cover can rapidly ascend to a working area; and a punching area which may generate danger is effectively shielded, so that potential safety hazards such as cracking and fragment splashing are avoided, the safety of operators is ensured, and the risk of industrial accidents is further reduced.