24results about How to "Avoid mechanical wear" patented technology

The invention discloses a porous gas thrust bearing with an elastic ring type squeeze film damper, and belongs to the technical field of mechanical bearings. Comprising a bearing base internally provided with a damper mounting groove, an elastic ring, a grading ring, an oil seal and a fan-shaped transmission element which are sequentially arranged in the damper mounting groove from bottom to top, a bearing cover arranged on the outer side of the damper mounting groove and connected to the end face of the bearing base, and a tilting pad and a porous mass block which are arranged on the outer side of the bearing cover. T-shaped connecting plates are connected to the outer end faces of the fan-shaped transmission elements through flexible pivots, T-shaped grooves are formed in the inner end faces of the tilting pads, and the T-shaped connecting plates of the fan-shaped transmission elements are connected with the molded surfaces of the T-shaped grooves in a matched mode through penetrating rectangular holes formed in the outer side faces of the bearing covers in a penetrating mode. The T-shaped groove is connected with the T-shaped connecting plate in a matched mode, elastic bending deformation is generated through the flexible pivot to drive the tilting pad to swing in a self-adaptive mode, the bearing structure is simplified, the service life of the bearing is prolonged, and the reliability of the bearing is improved.

The utility model discloses an adjusting device and three-dimensional printing equipment, which mainly applies external force to a rotating wheel assembly by arranging a force applying piece, so that the external force applied to a transmission belt by the rotating wheel assembly is within a preset range, the tensioning degree of the transmission belt is moderate, and the transmission performance is ensured. According to the main technical scheme of the utility model, the adjusting device comprises a fixing piece and a fixing piece, wherein the fixing piece is fixed with the position of a main body of the three-dimensional printing equipment; the rotating wheel assembly is used for being connected with a transmission belt; the force applying piece is connected with the fixing piece and the rotating wheel assembly, and the force applying piece is used for applying external force to the rotating wheel assembly; and the fastening piece is used for being connected with the fixing piece and the rotating wheel assembly and used for locking the relative position of the fixing piece and the rotating wheel assembly. The tensioning device is mainly used for tensioning the transmission belt.

The utility model provides a kind of etching liquid's acid-base waste gas spray tower, including tower body, water outlet pipe being passed in tower body, the top of tower body is equipped with exhaust port, tower body is sequentially provided with the aeration device for being used to pass into waste gas and carry out aeration, the purification device for purifying waste gas and the spray device for spraying from below to top in it, the bottom of tower body is formed with water storage pool, and aeration device is located in water storage pool;Purification device includes the partition plate being arranged in tower body, the purification piece being arranged on partition plate, partition plate is equipped with mounting groove, the bottom of mounting groove is equipped with through hole, and through hole is through in partition plate and is communicated with mounting groove;Purification piece includes the mesh enclosure being arranged in mounting groove, the adsorption ball being arranged in mesh enclosure and the cover plate being arranged on mesh enclosure, and adsorption ball is filled in mesh enclosure, cover plate is arranged on the top of mesh enclosure, and micro gap is formed between cover plate and partition plate.The utility model has the advantages of low energy consumption and high purification performance.

The utility model relates to a butterfly wing needle cap-shaped waterproof application which comprises a water absorption sponge mat and a cap-shaped application cover, a butterfly wing needle containing cavity is formed in the application cover, a cap brim part is arranged on the periphery of an opening of the application cover, gluing layers are arranged on the lower side face of the cap brim part and the bottom face of the water absorption sponge mat, a waterproof film is attached to the upper surface of the application cover, and a butterfly wing needle containing cavity is formed in the cap-shaped application cover. A needle penetrating hole is formed in the middle of the water absorption sponge cushion. The butterfly wing needle cap-shaped waterproof application effectively isolates direct contact between the butterfly wing needle and the skin through the water absorption sponge pad, avoids mechanical abrasion, is not prone to displacement and falling off, and is easy and convenient to replace. The butterfly wing needle can be well fixed and is not adhered, the risk that the butterfly wing needle is pulled out does not exist during replacement, and potential damage is avoided; a waterproof film is attached to the whole application cover, the butterfly wing needle can be isolated from the outside, and the waterproof effect is good.

The utility model relates to the technical field of building blocks teaching aid, especially to a circuit module and circuit toy set, including base, the side of base is provided with the interface for inserting the power cord, the bottom of base is provided with the standardization intermate structure for inserting on building block board, and the standardization intermate structure is connecting post or connecting groove, the inside rotation of base is provided with magnetic attraction component and the driving device of driving magnetic attraction component rotation, at least partly transparent liquid storage cylinder body, detachably installed on the base, the bottom of liquid storage cylinder body is equipped with magnetic rotation component, wherein, when liquid storage cylinder body installs to base, magnetic rotation component is located in the magnetic field action range of magnetic attraction component, when driving device drives magnetic attraction component rotation, through magnetic field coupling drives magnetic rotation component synchronous rotation, makes the liquid in liquid storage cylinder body form whirlpool, this scheme has the advantages of non -contact transmission to avoid mechanical wear and tear, high modular degree and convenient maintenance.

The utility model relates to the technical field of aerospace and mechanical and electrical product assembly, in particular to a civil aircraft cable laying quality evaluation device, which comprises a shell, a bottom plate, a high-resolution camera and a switch, a CPU (central processing unit) processor and a battery are arranged in the shell, the bottom plate is arranged at the bottom of the shell, the high-resolution camera is mounted on one side of the bottom plate, and the switch is arranged at the left lower part of the shell. The front side and the rear side of the shell are each provided with a plurality of symmetrically-arranged heat dissipation holes. According to the utility model, the hidden hinged handle is linked with the clamping block, the compression spring and the limiting frame to realize one-hand operation adaptability, and the high-resolution camera and the processor are integrated to acquire cable point cloud data in real time and generate a three-dimensional model; the hinged dust cover is combined with diversified interfaces to guarantee interface protection and multi-equipment expansion capability, and the light supplementing lamp can be adaptively adjusted according to ambient light and is matched with the protective cover to improve the adaptability to complex illumination scenes; the symmetrical heat dissipation layout and the anti-skid cushion cooperatively suppress operation vibration, and the operation stability in a narrow space is ensured.

The utility model discloses a Hall sensor circuit for cabinet door state detection, and belongs to the field of sensor circuits. Comprising a Hall sensor module, a filtering module, a voltage protection module, a current limiting module, a state indication module and a signal output interface module. The Hall sensor module is used for sensing a magnetic field signal generated by the position change of the cabinet door and outputting a corresponding level signal; the filtering module is composed of a pi-type filtering circuit composed of a capacitor and an inductor and is used for suppressing high-frequency interference of a power supply and improving power supply stability. The voltage protection module adopts a transient voltage suppression diode to realize input surge suppression; the current limiting module is composed of a plurality of resistors and is used for limiting output current and realizing signal level voltage division conditioning; the state indication module indicates the state of the cabinet door in real time through a light-emitting diode; and the signal output interface module is used for transmitting the processed signal to a control system. The circuit has the advantages of simple structure, strong anti-interference capability, high adaptability and good detection reliability.

The utility model discloses a pressure cleaning shower nozzle, including connecting pipe and water outlet subassembly, connecting pipe: inside right end is installed with filter component, the circumferential surface of connecting pipe is installed with support component, the right end of support component is installed with fixed component, water outlet subassembly: contain sleeve, water outlet head, clamping plate and distance sensor, the right end of connecting pipe circumferential surface is set up and is evenly distributed clamping groove, the inside joint of clamping groove has clamping plate, all clamping plate's surface is fixed with sleeve, the right end fixed with water outlet head in the inside of sleeve, the left end in the inside of sleeve is installed in the right end of filter component, fixed component is linked with all clamping plate, the right end of sleeve is seted up and has recess, the inside installation of recess has distance sensor, distance sensor and outside's PLC controller two -way electricity is connected, the circumferential surface of connecting pipe is fixed with fixed ring, can dismantle fast.

The invention relates to an image display device, and particularly discloses an adjustable holographic fan, which comprises a machine body, a rotating seat, a first slip ring and a second slip ring sleeve, a plurality of first light-emitting blades are fixed on the rotating seat, the first slip ring and the second slip ring can move back and forth along the rotating seat, a first butt joint terminal and a first combination part are fixed on the first slip ring, and a second butt joint terminal is fixed on the second slip ring. The first butt joint terminal is connected with the light-emitting control module through a flexible flat cable. The second slip ring is located on the rear side of the first slip ring, a plurality of second light-emitting blades are fixed to the first slip ring, a second butt-joint terminal and a second combination part are installed on the first slip ring, and the second butt-joint terminal is electrically connected with the second light-emitting blades; the second sliding ring is rotationally connected with a traction base, a threaded hole is formed in the traction base and matched with a screw rod, and the screw rod is driven by a position adjusting motor. According to the adjustable holographic fan, the visual effect is remarkably improved based on cooperation of the second light-emitting blades and the first light-emitting blades, and the adjustable holographic fan is scientific and reasonable in structure, low in implementation cost and compact in structure.

The utility model relates to a kind of rubber product hooking protection devices, including bottom plate, guiding piece being set on the bottom plate, pickup arm sliding on the guiding piece, mobile device with the pickup arm moves, protection device and hooking device being set on the pickup arm;The mobile device is set on the bottom plate;The protection device is connected in the action end of the mobile device;The hooking device is set on the pickup arm.Solve the traditional hooking device without buffering feedback, fragile products and components.

The invention relates to the technical field of traffic control boxes, in particular to a traffic control modular intelligent case and a control method and system thereof. The method comprises the following steps: monitoring various state parameters and environmental parameters of the case in real time, wherein the state parameters comprise a physical safety state and an electrical state; when it is monitored that the state parameters are abnormal, alarm information is generated; sending the alarm information to a monitoring platform through a selected communication mode; according to the monitored temperature and / or humidity state, an environment adjusting device is controlled to adjust the temperature and / or humidity in the case; and when the commercial power is cut off, the standby power supply is automatically switched. The system comprises a case body, a plurality of functional units freely matched on a standard guide rail, a lightning protection device and a temperature adjusting device. According to the invention, comprehensive intelligent monitoring and active operation and maintenance of the case state are realized, and the reliability, the safety and the maintainability of the traffic control system are obviously improved.

The utility model discloses a granule stirring workstation, wherein the granule stirring workstation comprises a base, a stirring drum and a material changing trolley, the base is provided with a lifting platform and a driving part, the stirring drum is arranged on the lifting platform, the stirring drum is rotatably connected with a stirring rod, one end of the stirring rod is detachably connected with the driving part, the driving part is used for driving the stirring rod to rotate, and the outer peripheral wall of the stirring drum is provided with a clamping part. The material changing trolley comprises a supporting frame, the lifting platform is lifted, the material changing trolley can be moved to the stirring drum, the supporting frame is driven to move to the clamping part and the lifting platform, the lifting platform is lowered, the clamping part is clamped on the supporting frame, and the material changing trolley can drive the stirring drum to separate from the lifting platform. The lifting platform can facilitate the material changing trolley to load and unload the stirring drum, thereby avoiding mechanical abrasion of the stirring drum chassis and the mixer base caused by carrying the stirring drum, greatly facilitating the carrying and feeding work of the stirring drum, and improving production efficiency.

The utility model provides a watch escapement wheel convenient to replace, belongs to the technical field of clocks, and relates to the watch escapement wheel convenient to replace. The escape wheel comprises a main body, a quick release device and an anti-vibration device. A quick release device is movably connected below the main body, and a shockproof device is movably connected below the quick release device in a sleeving manner. The quick release device is composed of a quick release block, a limiting ball, a sliding ring, a protective pad, a receiving block, a receiving spring, a receiving limiting ring, a butt joint block, a spring and a butt joint limiting ring, and quick disassembly and assembly of the escape wheel are achieved through cooperation of a spring linkage structure and a limiting component. The anti-vibration device comprises a fixing cylinder, a bearing and a base, external impact is absorbed through a bearing sleeving structure, and the operation stability is improved. According to the utility model, the replacement process is simplified through the modularized quick-release design, the maintenance cost is reduced, meanwhile, the shockproof structure ensures accurate travel time, and the mechanism is suitable for optimizing and upgrading the mechanical watch movement.

The invention belongs to the technical field of hoisting machinery safety monitoring and protection, and discloses a bridge crane steel wire rope anti-disengaging mechanical limiting protection device which comprises a rack, and a monitoring mechanism used for capturing the posture of a steel wire rope and an executing mechanism used for implementing emergency braking are integrated on the rack; the monitoring mechanism comprises a floating self-adaption assembly, a multi-dimensional detection assembly and a main falling-off detection assembly which are in transmission connection in sequence. According to the invention, magnetic flux change caused by rotation of the permanent magnet ring is sensed through the Hall sensor, and the micro deflection trend of the steel wire rope as low as 0.1 degree can be accurately analyzed in combination with a differential voltage algorithm, so that the system can intervene in advance when the steel wire rope is not really separated from the groove but is in a dangerous posture; normal operation swing and dangerous slot separation premonition can be distinguished, common-mode interference is eliminated through a software algorithm, the false alarm rate is greatly reduced, and the continuity and safety of crane operation are improved.

The invention discloses a folding device for a movable X-ray photography support, and belongs to the technical field of medical instruments.The folding device for the movable X-ray photography support comprises a movable bottom frame, a folding support body is arranged on one side of the top of the movable bottom frame, and a folding limiting mechanism is arranged on the top of the movable bottom frame; according to the folding support, through the arranged folding limiting mechanism, when a user needs to fold the folding support body, the user can rotate the folding support body and place the folding support body at the top end of the movable bottom frame, then the user loosens a lifting handle, and at the moment, a reset spring pushes a limiting plate to enable a locking plate to be inserted into a stabilizing groove in the inner side of a mounting sleeve; in the process of transporting the folding X-ray photography device body, when the movable bottom frame shakes due to the uneven road surface, the movable bottom frame transmits vibration to the damping springs, and the damping springs can effectively absorb and buffer vibration caused by the uneven road surface or other external force.

The utility model provides a total water consumption rechecking device for a water resource planning area, which relates to the technical field of agricultural water consumption statistics and comprises a detection vehicle body arranged on one side of a water pipe. According to the utility model, by detecting the movement of the vehicle body in each irrigation interval and arranging the instrument at the edge position in the irrigation interval, when the vehicle body is detected to move to the position close to the instrument, the position of the signal transmitter corresponds to the position of the signal receiver, and the control system starts the capturing device to capture the reading on the surface of the instrument; instruments in two adjacent sections of one channel are arranged on the opposite sides, water in the two sections can be captured at the same time through capturing devices on the two sides when the detection vehicle body stops at a single time, the total water amount in the total area can be calculated by integrating data, and the total water amount is checked with a water meter of a total water source; the effect of rechecking the total amount of water is achieved, and the problem of waste caused by water leakage in the pipeline is solved.

This invention discloses a gradient frustum array type multi-degree-of-freedom omnidirectional piezoelectric power generation device, belonging to the field of marine wave energy power generation devices. It includes a floating shell, a gradient frustum array skeleton unit, orthogonally arranged vibration energy harvesters, and a power management module. Through key technologies such as gradient frustum wideband adaptation, orthogonal energy harvesting array omnidirectional capture, magnetic coupling displacement amplification and limiting, and d33 mode piezoelectric conversion, it simultaneously captures multi-directional wave energy, adapts to 0.5-5Hz wideband waves, amplifies piezoelectric deformation, and achieves overload protection. It solves the problems of narrow energy harvesting bandwidth, low conversion efficiency, and weak environmental adaptability of existing devices, achieving efficient wave energy harvesting and in-situ power supply, and improving the device's service life and adaptability to the marine environment.

This utility model provides a motor for preventing bearing electrolytic corrosion, belonging to the field of motor technology. It includes a grounded motor housing, a rotatable shaft inside the housing, a front cover and a rear cover at both ends of the housing, each containing a bearing. The shaft passes through two sets of bearings at both ends. An isolation cover is provided on one side of the rear cover corresponding to the shaft, and a conductive component is located within the isolation cover. The conductive component includes a rotatable conductive roller, a wear-resistant conductive sleeve at one end of the shaft, and one side of the conductive roller making rolling contact with the wear-resistant conductive sleeve. The bottom of the conductive roller is grounded to the rear cover via an elastic wire. The rolling contact between the conductive roller and the wear-resistant conductive sleeve replaces the sliding friction of the carbon brush, avoiding mechanical wear during long-term operation. The conductive roller makes movable contact with the wear-resistant conductive sleeve via a spring, maintaining good contact between them. An insulating sleeve fitted on the bearing blocks the current on the shaft, keeping the bearing electrically isolated.

The present invention belongs to the technical field of prestressed steel frame building structure, and specifically relates to a prestressed frame structure for buildings; the main beam, the auxiliary beam and the column are arranged into a parallel four-bar linkage mechanism, and a prestressed anchor cable is arranged between the main beam and the auxiliary beam; the four-bar linkage mechanism can produce deformation during vibration to avoid rigid damage, and the prestressed anchor cable can keep the frame stable under static conditions and can drive the frame to reset after the frame is deformed; since the prestressed anchor cable is arranged between the main beam and the auxiliary beam, as long as the two produce relative displacement, the prestressed anchor cable can be stretched to resist lateral loads, and is not restricted by the tilt direction of the frame, thereby fully utilizing the load capacity of the anchor cable; in addition, the present invention uses a hydraulic damper instead of a mechanical damper, the damping size is easier to control, and the mechanical wear of the damper is avoided, thereby increasing the service life.

This invention discloses an energy-saving control method for new energy substations based on digital management, belonging to the field of power system automation and energy management technology. The method includes: constructing a multi-source data fusion sensing layer to collect data such as main transformer operating parameters, reactive power compensation status, auxiliary system load, and ambient temperature and humidity; establishing a dynamic energy efficiency evaluation model with the goal of minimizing comprehensive energy consumption, integrating main transformer losses, reactive power switching losses, auxiliary system energy efficiency, and ambient temperature correction factors; generating a coordinated control strategy for main transformer tap positions, reactive power switching, and cooling system start / stop using a rolling optimization algorithm, and verifying safety boundaries and action frequency constraints; executing closed-loop control and online correction strategies based on deviation feedback; and adaptively updating model parameters using the recursive least squares method, combined with an energy efficiency knowledge base to improve response speed. This invention achieves accurate modeling of the entire substation's energy consumption and multi-factor coordinated optimization, significantly reducing the substation's electricity consumption while ensuring safety and new energy consumption.

The invention belongs to the technical field of clutches, and particularly relates to a heat dissipation type fan clutch assembly capable of avoiding dust accumulation. The tops of the driving shafts at the two ends are fixedly connected with a driving plate, the driving shafts are rotationally sleeved with a rear cover, the driving plate is contained in a space between the rear cover and a front cover which are connected in a sealed mode, an oil storage cavity is defined by the top face of the driving plate and the inner wall of the front cover, and multiple concentric circular ring teeth are arranged on the end face, close to the outer edge, of the driving plate. The circular ring teeth on the upper end face and the lower end face are contained in the corresponding front cover tooth grooves and the corresponding rear cover tooth grooves and define meshing cavities, an oil inlet channel communicated with the meshing cavities is formed in the driving plate, and an oil return channel communicated with the meshing cavities and the oil storage cavity is formed in the front cover. According to the invention, accumulated dust and greasy dirt at the joint of the shell and the rear cover body can be automatically cleaned in real time; the rotating stability of the driving shaft can be improved; and oil pollution and tooth groove blockage caused by entering of external impurities can be reduced.

The invention discloses a gear shifting control method, device and equipment of an electric bicycle, a medium and a product. The gear shifting control method of the electric bicycle comprises the steps that whether the electric bicycle executes gear shifting operation or not is judged according to gear shifting parameters detected by a gear shifting control sensor; when the electric bicycle executes the gear shifting operation, the motor is controlled to stop power output, and the rotating speed of a rear wheel of the electric bicycle at the current moment and a pedaling frequency signal of the electric bicycle at the current moment are obtained; determining a gear at the current moment according to the rotating speed of the rear wheel at the current moment and the pedaling frequency signal at the current moment; and controlling the electric bicycle to execute gear shifting operation according to the gear at the current moment. When the electric bicycle is subjected to gear shifting operation, the motor is firstly controlled to stop power output, then the gear shifting operation is executed according to the gear at the current moment, mechanical abrasion of a transmission system of the electric bicycle in the gear shifting process can be prevented on the basis that gear shifting is achieved, and then the service life of the transmission system can be prolonged.

The utility model relates to a quick -setting cement production equipment, concretely is a concrete mixing box of preventing quick -setting cement block, to solve the technical problem that cement slurry is easy to block the support end of stirring shaft and lead to the jamming of stirring shaft in the process of discharging that quick -setting cement, sand and gravel, mixed material etc. are mixed and output in the existing concrete mixing box, the utility model discloses a box body, stirring shaft and sealing device, sealing device includes wear -resistant bottom plate, spacer ring, inner sealing plate and seal ring, wear -resistant bottom plate, spacer ring, inner sealing plate are connected in turn and are pressed tightly in the inside of box body front end board, wear -resistant bottom plate is set in the outside of stirring shaft medium diameter section, spacer ring and inner sealing plate all are set in the outside of stirring shaft large diameter section, and wear -resistant bottom plate, inner sealing plate form clearance seal between medium diameter section and large diameter section respectively, inner sealing plate, wear -resistant bottom plate, large diameter section and spacer ring form a passageway, and seal ring sets up in the passageway, and its inner periphery and large diameter section between seal solid link, and one side is pressed tightly on wear -resistant bottom plate.

The application discloses a rare earth synergic electric flocculation fluorine removal system, a control method and application, and an anode plate is composed of a metal material doped with rare earth elements. The application adopts a pneumatic flushing unit for non-contact removal on the surface of the anode plate, and adopts a flexible cleaning unit for contact cleaning on the surface of a cathode plate, so that differential cleaning of the anode plate and the cathode plate is realized. The pneumatic flushing unit sprays gas to the surface of the anode plate through a gas spraying assembly, and uses bubble turbulence to exert a flushing and stripping effect on a rare earth fluoride deposition layer on the surface of the anode plate, so that the deposition layer is effectively removed, and mechanical wear of the expensive rare earth anode plate is completely avoided. The application effectively solves the problem that the surface of the anode plate is passivated due to rapid accumulation of the rare earth fluoride deposition layer in the process of electric flocculation fluorine removal of the rare earth doped anode plate, and long-term stability of fluorine removal efficiency of the system is ensured.