20results about How to "Extended structural life" patented technology

The application discloses a top-opening drum washing machine inner drum positioning method and a washing machine. The method comprises the following steps: after setting a washing program, the inner drum is controlled to rotate at a preset low speed; the rotation angle of the inner drum is collected and the deviation of the rotation angle from a target angle is calculated; the motor speed is controlled by PID closed-loop regulation with feedforward compensation based on the deviation, wherein the feedforward compensation amount is calculated according to the load weight, the speed fluctuation and / or the deviation change rate; when the deviation is less than a preset threshold, segmented braking is performed until the inner drum is locked at the target angle position; if the locking fails, the inner drum is reversely rotated to a preset angle, and the segmented braking is retried with corrected braking parameters. The application combines PID regulation with feedforward compensation and segmented braking, introduces a failure retry and parameter self-adaptive correction mechanism, and realizes high-precision, impact-free and high-reliability positioning of the inner drum.

The utility model discloses a kind of magnetic shaft structures that can sound, including base, the upper cover being set on base, the guide core being movably set between base and upper cover, and the elastic member being sleeved between base and guide core, further including the magnet being sleeved on the bottom of the guide core, the lower end of guide core is formed with magnetic installation groove, the middle part of magnetic installation groove is formed with the sound column extending towards base direction;Magnet is overall circular ring column shape, it is embedded in the magnetic installation groove, wherein hollow part is sleeved on the periphery of sound column;The lower end of sound column penetrates through magnet lower end surface and continues to extend downward, and its downward extending portion is impacted base to sound under the action of external force.The utility model provides a kind of magnetic shaft structures that can sound, guide core is impacted on base when being pressed and moved downward, magnet is sleeved on guide core, so as to realize good sound effect in the case where magnet is not damaged and the transmission accuracy is guaranteed, improve the use experience of user.

The utility model discloses a conveying belt deviation rectifying device and a belt conveyor. The conveying belt deviation rectifying device comprises two catch wheel sets arranged on the two sides of a conveying belt respectively, a deviation rectifying assembly arranged on one side of the conveying belt and an adjusting roller arranged on a conveying frame. The deviation rectifying assembly is connected with the catch wheel set and the adjusting roller, the catch wheel set abuts against the conveying belt to be used for detecting the deflection condition of the conveying belt, and the deviation rectifying assembly adjusts the angle of the adjusting roller to offset deflection of the conveying belt when the conveying belt deflects. The deflection condition of the conveying belt is detected through the catch wheel set, the posture of the deviation rectifying assembly is adjusted to offset the deflection of the conveying belt when the conveying belt deflects, and therefore it is guaranteed that the conveying belt does not collide with the machine frame, conveying equipment is kept in a stable running state, and the tobacco material conveying efficiency is guaranteed.

An arm assembly and humanoid robot, the arm assembly comprising a first housing, a first driving mechanism, a second housing, a second driving mechanism and a first cable, the first housing comprising a main body shell, a first cantilever and a second cantilever, the main body shell having a first space, the first cantilever and the second cantilever being connected with the main body shell; the first driving mechanism comprising a first driving member, the first driving member being accommodated in the first space; the second housing being rotatably connected with the first cantilever, the second cantilever and the first driving mechanism, the second housing having a second space; the second driving mechanism comprising a second driving member, the second driving member being accommodated in the second space; the first cable being connected with the first driving member and the second driving member, a first wire channel of the first cantilever being in communication with the first space, a second wire channel of the second housing being in communication with the second space and the first wire channel, the first cable being arranged in the first wire channel and the second wire channel, so as to avoid the first cable from affecting the freedom of movement of the arm.

The utility model discloses an offshore navigation mark, including buoy main part, metal frame structure and tail cylinder, buoy main part is cylindrical tank body, and its top fixedly connected metal frame structure, metal frame structure adopts the lattice design, and the top is equipped with solar panel frame and navigation mark lamp, and the inside of buoy main part is equipped with at least two and is arranged in the upper and lower through -going accommodating cavity, and the fixed welding of each accommodating cavity has data acquisition equipment cabin, and the bottom of data acquisition equipment cabin is more than the bottom surface of buoy main part, and the bottom welding of buoy main part tail cylinder, and the tail cylinder end is connected through the flange bolt counterweight ring, forms the layered bearing structure from top to bottom. The utility model discloses utilize cylindrical buoy main part to provide even force shell, and the standardized interface in data acquisition equipment cabin supports multi -type sensor plug and play. The lattice design of metal frame evenly transmits top equipment load to main base, prolongs the structure life, and improves structural layout rationality.

This utility model discloses a sound absorption and noise reduction structure for a vacuum cleaner, including an airflow channel pipe. One end of the airflow channel pipe is snapped into a vacuum cleaner connector. Dust chamber shell one and dust chamber shell two are respectively attached to both sides of the airflow channel pipe. The mating surfaces of dust chamber shell one and dust chamber shell two are snapped into each other, and a handle ring is snapped into the outer side of the dust chamber shell one near the vacuum cleaner connector end, and a limit ring is snapped into the outer side of the dust chamber shell one away from the handle ring end. A dust chamber shell cover is snapped into the top of dust chamber shell one and dust chamber shell two. Heat dissipation holes are opened on the bottom side of each dust chamber shell one and dust chamber shell two, and a motor assembly is fixedly connected inside the corresponding heat dissipation holes. Through the integrated design of airflow channel optimization, vibration isolation, composite noise reduction and efficient heat dissipation, the acoustic performance of the vacuum cleaner is improved while ensuring heat dissipation efficiency and structural reliability, achieving a comprehensive technical effect of low noise and high stability.

The utility model relates to medical nursing equipment technical field, especially a medical bed leg part bed surface lifting structure. Including a push rod, a support sheet, in this structure, push rod sets up at the two sides of the thigh part bed surface place and is between the lug and drive motor, through the edge department waist type hole and lug articulates, through the edge department connecting hole and drive motor's output end connection, and the one side of support sheet and push rod pin joint, the other side and thigh part bed surface articulate, then the edge department waist type hole and middle part waist type hole between push rod, support sheet and thigh part bed surface between constitute a triangle structure, structure is more stable, leg part bearing is more excellent, can through drive motor push -and -pull push rod and adjust triangle size, to realize bed surface lifting. Install push rod and support sheet in the two sides of the thigh part bed surface place, and the space utilization is high, has reduced the space waste below the bed surface, has set up the bed surface more lowly while improved the security of medical bed.

This utility model discloses a rainproof structure for a specially designed refrigerated container. The rainproof structure is installed on the threshold outside the bottom plate of the container. The structure includes a pad on the threshold and a rainproof plate covering the pad. The rainproof plate and the top surface of the threshold form a slope, making the inner height of the container higher than the outer height. The rainproof plate works in conjunction with the sealing strip of the container door to form a sealed structure, preventing rainwater from entering the container. The advantages of this utility model are: the composite slope design and sealing strip of this technical solution achieve zero leakage in heavy rain conditions, solving the problem of rainwater backflow in traditional side-opening refrigerated containers.

A non-movement clamp for tensile testing of ultra-high strength steel bars includes an upper clamping block structure and a lower clamping block structure with similar structures. The upper clamping block structure includes an upper clamping block, an upper clamping shaft, an upper shaft cap, and an upper combined ring. The upper clamping block includes two semi-circular clamping blocks, and a combined ring step is provided on the outer side of the lower end of the semi-circular clamping blocks. The upper combined ring is fitted onto the outer side of the upper clamping block and contacts the combined ring step. The interior of the semi-circular clamping block has a sample mounting area and an upper clamping shaft mounting area that are connected vertically. One end of the sample is clamped in the sample mounting area. The lower end of the upper clamping shaft and the upper shaft cap are threaded together and clamped in the upper clamping shaft mounting area. The upper shaft cap contacts the end of the sample. The other end of the upper clamping shaft is connected to the wedge clamping end of the tensile testing machine. This utility model uses a combined ring to fix the clamping blocks together. The clamping block body has no structural damage. The sample limiting device composed of the upper and lower clamping shafts and the upper and lower shaft caps can limit the position according to the position of the sample, and has high applicability.

This invention relates to a two-dimensional electro-hydraulic servo valve driven directly by an eccentric shaft motor, comprising a spool valve assembly, a motor fixed to the top right side of the spool valve assembly, and a fork fixed to the right end of the valve core inside the spool valve assembly. The output shaft of the motor is an eccentric shaft, which is inserted into the valve body of the spool valve assembly, and the end of the eccentric shaft is embedded in a spherical bearing. The outer spherical surface of the spherical bearing is fitted into a groove on the upper part of the fork. This invention allows axial displacement caused by valve core rotation, preventing valve core jamming; it can generate a large valve core torque with a small torque input, exhibiting high response and long lifespan; the motor and linear displacement sensor are plug-in, facilitating installation.

The invention relates to the technical field of aerospace transportation, in particular to a vertical take-off and landing single-stage injection repeatable heaven and earth back-and-forth carrying method which comprises the following steps: preparing for vertical boosting launching, and simultaneously finishing all preparations before rocket launching; the vertical boosting launching device releases stored energy and boosts the rocket to accelerate; after boosting launching is completed, the rocket engine is ignited to take off and leave the boosting device; the rocket continuously accelerates to the orbit injection speed and then enters a preset orbit; the rocket is adjusted to be in a tail windward configuration needed by reentry, and the rocket is decelerated to enter a reentry window; a rocket enters the atmosphere with the tail nozzle taper plug outsole as a windward side, and the thermal protection capacity of the taper plug outsole is enhanced through a regeneration cooling structure in the taper plug outsole structure. And the rocket vertically lands to the original boosting launching rack and waits for a re-launching task at the original position. According to the invention, by constructing an integrated vertical take-off and landing, single-stage orbit injection, orbit reentry and in-situ recovery process, high-frequency, low-cost and flight-based operation of a sky-ground back-and-forth carrying task is realized.

The utility model discloses a kind of road reconstruction broadening reinforcement structures, including road along connecting plate, multiple horizontal positioning bolts are horizontally arranged on the road along connecting plate, the top of the road along connecting plate is rotatably installed with broadening plate, multiple bufferings are provided between the broadening plate and road along connecting plate, the bottom of the broadening plate is provided with multiple support reinforcement mechanism, the buffering includes semicircular metal piece and two inclined struts, two inclined struts are fixedly installed at the both ends of semicircular metal piece, two inclined struts are fixedly installed with broadening plate and road along connecting plate respectively, semicircular metal piece has arc-shaped buffer support force.The device has multistage cooperative reinforcement effect, vertical support: support mechanism bears vertical load, oblique reinforcement: buffering provides lateral support force, transverse fixation: horizontal bolt anchors road along, forms three-dimensional stress network, disperses load to road along and foundation, reduces local failure risk.

The application provides a track slab arching analysis method and system based on strength stability comprehensive theory, and relates to the technical field of health monitoring of high-speed railway ballastless track structure. The method comprises the following steps: obtaining track slab geometric dimensions, material properties and initial arching parameters; establishing a spatial mechanics model considering lateral block transverse constraint; applying equivalent temperature rise load to simulate temperature stress field and deformation field; calculating transverse constraint reaction force and equivalent temperature stress; inputting a strength stability comprehensive theory model to calculate comprehensive factors and strength stability factors; and combining critical condition to judge the arching critical state. The application introduces the strength stability comprehensive theory, integrates the strength failure of the track slab and the structural instability into the same analysis framework, and realizes the precise evaluation of the high-temperature arching critical state.

The invention relates to a blast furnace hydrogen-rich blowing tuyere small sleeve structure which comprises a tuyere small sleeve body, a tuyere is arranged in the tuyere small sleeve body in a penetrating mode, the tuyere comprises a basic section and an expansion section which are sequentially arranged from an inlet to an outlet, and the starting end of the expansion section is located at the end position where a hydrogen-rich gas spray gun and the center line of the tuyere intersect. A first included angle is formed between the side wall of the upper part of the expansion section and the side wall of the upper part of the foundation section and is inclined outwards; a second included angle is formed between the side wall of the lower portion of the expansion section and the side wall of the lower portion of the foundation section and inclines outwards. According to the position of the hydrogen-rich gas spray gun, the expansion area is arranged to be of the expansion structure suitable for volume change, the tuyere diameter expansion operation and the diameter change operation are achieved at the same time, high adaptability can be achieved, the influence of volume increase on tuyere corrosion after hydrogen-rich gas injection is thoroughly avoided, and the service life of the blast-furnace tuyere small sleeve is greatly prolonged.

The utility model relates to a steel structure engineering technical field discloses a kind of large-span complex steel structure node connecting device, including bottom plate, the outer wall top of bottom plate is provided with buffer mechanism, the outer wall of bottom plate is fixedly connected with first steel piece, the outer wall of first steel piece is provided with fixed mechanism, the buffer mechanism includes first flange plate, the outer wall bottom of first flange plate is fixedly connected in the outer wall top of bottom plate, the outer wall top of first flange plate is fixedly connected with outer column, the outer wall top of outer column is fixedly connected with column cover, the inner wall slidingly connected with inner column of outer column. In the utility model, buffer mechanism contains first flange plate, upper connection outer column forms closed sleeve, outer column top installs detachable column cover, it is convenient to overhaul spring and lubricating component, maintains component alignment relationship, prevents sliding deflection, oil tank stores greases and reduces friction loss, relieves stress concentration phenomenon, improves structural safety and service life.

This utility model discloses a telescopic device comprising a telescopic arm and a drive mechanism. The telescopic arm includes several sequentially nested mechanical arms, with adjacent mechanical arms slidably connected. The outermost mechanical arm has a positioning part on its end face, and the innermost mechanical arm has a stop adapted to the positioning part. The output end of the drive mechanism is fixedly connected to the innermost mechanical arm, driving it to move away from the outermost mechanical arm. Under the action of the positioning part and the stop, it sequentially drives adjacent mechanical arms to slide in the same direction, thereby extending the telescopic arm. The drive mechanism also drives the innermost mechanical arm to move towards the outermost mechanical arm, and under the action of the positioning part and the stop, it sequentially drives adjacent mechanical arms to slide in the same direction, thereby retracting the telescopic arm. This utility model has the advantages of compact structure, long service life, adaptability to complex forces under heavy-load conditions, high structural strength, low power transmission loss, and smooth telescopic operation.

The utility model discloses an electric passenger car auxiliary filter screen frame which comprises a fixed frame (1), a detachable frame (2) and a middle layer filter screen (3), the middle layer filter screen (3) is arranged between the fixed frame (1) and the detachable frame (2), an indexing pin (4) is installed on the fixed frame (1) in a welding mode, and an indexing pin head (5) used for fixing / detaching the detachable frame (2) is arranged on the indexing pin (4). At least one indexing pin stopper (7) matched with the indexing pin (4) on the fixed frame (1) for use is mounted at the corresponding position of the detachable frame (2); the utility model has the beneficial effects that the filter cotton frame and the pressing plate structure are optimized and reformed on the premise that the overall basic function requirement of the filter screen frame is met by taking the independent research design as the main part: the indexing pin structure is used for replacing a bolt structure for locking and fixing, and the filter screen frame is first in the industry, completely original, reliable in structure, high in durability, capable of being operated by a single person, and quick to disassemble and assemble; and the method is convenient to popularize.

The application relates to the technical field of gas filtration, in particular to a honeycomb filter which comprises a box body, a wind guide pipe and a filter body in communication with the wind guide pipe, a cladding shell is arranged on the filter body, a plurality of heat exchange cavities are arranged between the cladding shell and the filter body, sealing plates are rotationally arranged at air inlet positions of the plurality of heat exchange cavities, a temperature control protection unit connected with the sealing plates and the heat exchange cavities is arranged in the box body. When the honeycomb filter is used, the plurality of heat exchange cavities between the cladding shell and the filter body are arranged, and a pure mechanical temperature control protection unit driven by a temperature sensing bag is matched, the number of heat exchange cavities participating in heat exchange can be automatically adjusted according to the change of tail gas temperature, accurate dynamic regulation and control of the working temperature of the filter body is realized, thereby effectively avoiding the thermal expansion and thermal stress accumulation of the filtering medium caused by continuous heat action, and micro cracks or sintering deformation of the honeycomb ceramic body is prevented.

The utility model relates to the technical field of wind power generation equipment, in particular to a clutch type carbon brush slip ring device for cable twisting prevention of a wind generating set, which comprises an upper turntable assembly, a lower turntable assembly, a clutch mechanism, a slip ring structure and a carbon brush assembly, the clutch mechanism comprises a guide assembly and a shaft sleeve capable of moving axially, when the upper rotating shaft rotates by a certain angle, the upper rotating shaft is meshed with the shaft sleeve through the guide assembly, the shaft sleeve is meshed with the lower rotating shaft through the guide assembly, and a complete torque transmission path can be formed between the upper rotating shaft and the lower rotating shaft. The binding post is electrically connected with the carbon brush assembly through a flexible wire, the arrangement mode of the flexible wire allows relative rotation of the upper rotating disc assembly and the lower rotating disc assembly, and under the condition that a torque transmission path is not formed between the upper rotating shaft and the lower rotating shaft, the upper rotating shaft does not drive the lower rotating shaft to rotate when rotating. The carbon brush assembly and the slip ring structure are kept relatively static, so that rotation friction between the carbon brush assembly and the slip ring structure can be reduced, and maintenance frequency and cost are reduced.

The application relates to a part posture adjusting machine facilitating construction operation and relates to the technical field of part posture adjusting machines. The part posture adjusting machine comprises a base, the top end of the base is provided with a machine body, the surface of the machine body is limited to slide with an adjusting frame, the side end of the adjusting frame is provided with a mounting plate, and the side end of the mounting plate is rotationally connected with a placing frame. The fixing plate, the limiting table and the anti-deviation correction assembly are arranged, stable support resistance is formed in the limiting table at the side end of the mounting plate when the workpiece parts are placed in the placing frame, the inclination force caused by additional weight is effectively offset, and the inclination and misplacement between the placing frame and the mounting plate are avoided. Even if the volume of the parts in the placing frame is increased and the total weight is increased, the structure can also synchronously expand the support resistance range in the limiting table, so that the placing plate and the mounting frame are always kept in a vertical and regular state.