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17results about How to "High limit accuracy" patented technology
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Single-pole eight-throw coaxial switch
PendingCN119560749AEnsure consistencyincrease contactWaveguide type devicesMicrowave cavityCoaxial transmission line
The invention discloses a single-pole eight-throw coaxial switch, and belongs to the technical field of microwaves. According to the 67GHz single-pole eight-throw coaxial switch, the 1.85 mm coaxial transmission line and the edge line transmission line are adopted to form a microwave transmission system of the 67GHz single-pole eight-throw coaxial switch, and the 67GHz single-pole eight-throw coaxial switch is realized; a 7-shaped microwave transmission system is adopted, and a single-pole eight-throw coaxial switch with a load is realized on the premise that the size of the coaxial switch is not increased; the transmission reed and the push rod form a push rod assembly, the push rod assembly is limited by a pin on the cover plate, and the friction position of the push rod in the moving process is transferred out of the microwave cavity, so that poor contact caused by transfer to the contact position after redundancy generated by friction is avoided; the push rod assembly is limited by the pin, so that the limiting precision is high; the load of the on-load single-pole eight-throw coaxial switch is realized by adopting a load sheet, and the load sheet has the advantages of simple structure, high working frequency, good standing wave, low cost and the like; and coaxial loading can also be adopted, so that assembly and disassembly are facilitated.
Owner:CHINA ELECTRONIS TECH INSTR CO LTD
Precise adjustable travel switch for winch type gate hoist
The utility model relates to a precise adjustable travel switch for a winch type gate hoist, which comprises a mounting seat, a lead screw connected onto the mounting seat, a cam slider connected onto the lead screw, a limit rod arranged above or below the lead screw and used for limiting rotation of the cam slider, and scales arranged on two sides of the lead screw respectively. A plurality of verniers are arranged on the two scales, an upper limiting switch, a locking switch, a locking switch, an unlocking switch and a lower limiting switch which can be matched with the cam sliding block are arranged on the verniers respectively, and the locking switch and the locking switch are located between the upper limiting switch and the lower limiting switch and used for limiting the opening and closing height of the gate; wherein the vernier of the upper limit switch, the vernier of the locking switch and the vernier of the locking switch are arranged on the scale on one side of the lead screw, and the vernier of the lower limit switch and the vernier of the unlocking switch are arranged on the scale on the other side of the lead screw. The precise adjustable travel switch has the advantages of being convenient to adjust, high in limiting precision, reliable to use and the like.
Owner:SOUTH TO NORTH WATER SHANDONG LINE CORP
Automatic steel plate feeding device and limiting structure thereof
InactiveCN119115282Aavoid liftingAvoid Accuracy ImpactLaser beam welding apparatusClassical mechanicsStructural engineering
The invention relates to a limiting structure for an automatic steel plate feeding device and further relates to the automatic steel plate feeding device. The limiting structure for the automatic steel plate feeding device comprises a driving assembly and a limiting assembly. The driving assembly is arranged above a steel plate feeding path and is orthogonal to the steel plate feeding path, the limiting assemblies are oppositely arranged at the two ends of the driving assembly and located below the driving assembly, and the limiting assemblies are used for driving the limiting assemblies to move in the same direction or away from each other. The limiting assembly comprises a lower limiting wheel and an upper limiting wheel used for limiting the steel plate in the vertical direction, and the upper limiting wheel and the lower limiting wheel are oppositely arranged in the vertical direction and can get close to or get away from each other. And the side limiting wheel is used for laterally limiting the steel plate. Under the driving of the driving assembly, the limiting assemblies can be automatically and relatively close to or away from each other so as to be suitable for limiting the steel plates with different widths in the vertical direction and the two sides, manual cooperative operation is not needed, time and labor are saved, and the limiting precision can be improved.
Owner:GUANGZHOU INST OF RAILWAY TECH
Reactor core fuel outer sleeve welding positioning device and friction stir welding method thereof
PendingCN119216757Aavoid misalignmentImprove carrying capacityNon-electric welding apparatusStructural engineeringMechanical engineering
The invention provides a reactor core fuel outer sleeve welding positioning device and a friction stir welding method thereof.The positioning device comprises a first clamping block and a second clamping block, the opposite side faces of the first clamping block and the second clamping block are provided with a first V-shaped groove and a second V-shaped groove correspondingly, and when a reactor core fuel outer sleeve is in a welding state, the first V-shaped groove and the second V-shaped groove are clamped; the first V-shaped groove and the second V-shaped groove can jointly clamp the side wall, in the welding direction, of the hexagonal pipe and the side wall, in the welding direction, of the hexagonal adapter. The welding positioning device further comprises two axial limiting assemblies. The axial limiting assemblies are located at the ends of the reactor core fuel outer sleeve respectively and connected with the first clamping block and the second clamping block so that axial movement of the reactor core fuel outer sleeve can be limited. When the reactor core fuel outer sleeve is welded in a friction stir welding mode, it is guaranteed that the outer sleeve is reliably limited in all directions, dislocation or cracking of all components is prevented, and the welding quality is guaranteed.
Owner:INST OF METAL RESEARCH - CHINESE ACAD OF SCI +1
Infrared self-locking sensor
The utility model relates to the technical field of sensor equipment, and discloses an infrared self-locking sensor which comprises a limiting sensor used for sending out a limiting signal and a locking device used for locking a mechanical arm, and an infrared sensor used for detecting the position of the mechanical arm is arranged between the limiting sensor and the locking device. The locking device, the infrared sensor and the limiting sensor are sequentially arranged in the moving direction of the mechanical arm. The limiting precision of the mechanical arm is effectively improved, and then the working efficiency of the mechanical arm is improved.
Owner:YUANHUIJI (CHONGQING) TECHNOLOGY CO LTD
Quantum noise compression type laser gyroscope
ActiveCN119492367AIncreasing the thicknessWeight increaseSagnac effect gyrometersResonant cavityGyroscope
The invention provides a quantum noise compression type laser gyroscope. The laser gyroscope comprises a microcrystalline glass cavity, a cavity length adjusting mechanism, a mechanical shaking wheel, an output mirror and a reflecting mirror, a mirror mounting surface and a cavity length adjusting mechanism mounting surface are arranged on the side surface of the glass ceramic cavity, the reflecting mirror and the output mirror are respectively arranged on the mirror mounting surface, and the cavity length adjusting mechanism is arranged on the cavity length adjusting mechanism mounting surface; the microcrystalline glass cavity is supported on the machine shaking wheel through the shaking wheel mounting hole; an inner cavity of the glass ceramic cavity is a resonant cavity, and a plurality of layers of annular light paths are formed in the resonant cavity. According to the quantum noise compression type laser gyroscope provided by the invention, the light path length can be multiplied under the condition that the thickness and the weight of the laser gyroscope are slightly increased, and the luminous flux can be increased at the same time, so that the limit precision of the laser gyroscope is improved.
Owner:NAT UNIV OF DEFENSE TECH
Hard disk fixing frame
ActiveCN222337556UGuarantee stabilityensure safetyDigital processing power distributionMechanical engineeringPhysics
The utility model discloses a hard disk fixing frame, which comprises a plurality of fixing plates, a plurality of supporting plates and a plurality of fixing plates, and every two fixing plates positioned in the same horizontal direction are arranged in one group; the multiple penetrating holes are formed in the four corners of each fixing plate correspondingly; the multiple bolts are connected to the multiple penetrating and inserting holes in a screwed mode correspondingly; wherein the fixing plates are arranged in multiple groups and are oppositely arranged, the hard disk is located between the two fixing plates, and the multiple bolts penetrate through penetrating holes in the two fixing plates respectively to be in threaded connection with the two ends of the hard disk. The stability and safety of the hard disk are ensured, and the hard disk is effectively prevented from shaking and being damaged in the transportation or use process. And through the clamping mechanism and the elastic pressure assembly, the plurality of hard disks can be mounted and dismounted quickly and conveniently, and the working efficiency is improved.
Owner:宁飞灵
Positioning device for mobile phone manufacturing
ActiveCN224059659UGuaranteed stabilityImprove operational convenienceWork holdersControl engineeringControl theory
The utility model belongs to the technical field of mobile phone manufacturing, and discloses a positioning device for mobile phone manufacturing, which comprises a bottom plate, one end of the bottom plate is fixedly provided with a positioning mechanism, the other end of the bottom plate is fixedly provided with a limiting mechanism, the upper surface of the bottom plate is fixedly provided with an object placing table, the upper surface of the object placing table is provided with a mobile phone workpiece, and the mobile phone workpiece is arranged on the object placing table. The limiting mechanism comprises a limiting frame, one side of the limiting frame is fixedly matched with one end of the bottom plate, a rotating frame is fixedly arranged on one side of the limiting frame, a handle is rotationally arranged at the lower end of the rotating frame, and the two sides of the handle are jointly rotationally connected with a pull rod; the pull rod is driven to move by rotating the handle, and then the limiting block is driven to slide on the bottom plate, so that the mobile phone workpiece is rapidly and accurately limited, the production efficiency and the product quality are improved, and the defective rate caused by inaccurate positioning or workpiece displacement is reduced.
Owner:SHENZHEN QIAOSEN TECH CO LTD
A position limiting mechanism for polishing a motor stator
ActiveCN224390798URealize clamping limitbest contact pressurePolishing machinesGrinding drivesElectric machinePolishing
The utility model relates to motor stator polishing processing technical field, the utility model discloses a kind of motor stator polishing processing's limiting mechanism, including mounting seat, press -fitting block, installation foot, protective frame and driving motor, protective frame top is fixedly connected on mounting seat surface, installation foot left side surface is fixedly connected on press -fitting block right side surface, driving motor surface is fixedly connected in protective frame inner wall, limiting mechanism is provided on mounting seat, auxiliary mechanism is provided below mounting seat, limiting mechanism is used to limit motor stator, auxiliary mechanism is used to fix motor stator, the utility model is provided with limiting mechanism and auxiliary mechanism, solve the current motor stator polishing processing lack of limiting mechanism, cannot be positioned according to the width, thickness and inner ring of different stator, it is easy to lead to stator displacement, vibration or eccentricity and other defects when polishing, cause polishing wheel wear, equipment operation is not stable, reduce the problem of production efficiency and yield.
Owner:CHANGZHOU HONGHUI POWER TECH
A prefabricated thermal insulation module conveyor line
Owner:宿迁市科众联新材料科技有限公司
Lead screw end position limiting and cushioning structure
PendingCN122589953Aprotection from destructionNo need to increase size
This invention belongs to the field of lead screw transmission technology and discloses a lead screw end limiting and buffering structure, including a lead screw and a limiting and buffering device. The limiting and buffering device is located at the end of the lead screw. When the nut on the lead screw moves to the end of the lead screw, the limiting and buffering device first limits the axial and rotational movement of the nut. When the limiting torque set by the limiting device is exceeded, the limiting device fails, thereby buffering. The buffer is located between the fixed part and the rotating part. The closer the distance between the fixed part and the rotating part, the greater the force exerted by the buffer on the rotating part. During normal operation, this invention achieves a reliable mechanical limiting function through the limiting pin, with high limiting accuracy. Under abnormal impact conditions, the limiting pin fails at the set torque threshold, limiting the peak instantaneous impact load below the set value, effectively protecting the lead screw, nut, and other structural components from damage, and avoiding the problem of excessive impact load generated by rigid limiting structures.
Owner:JINCHENG NANJING ELECTROMECHANICAL HYDRAULIC PRESSURE ENG RES CENT AVIATION IND OF CHINA
Novel predetermined point wireless control antenna folding and unfolding device
PendingCN119315243ASimple structureMiniaturizationAntenna supports/mountingsWireless controlControl engineering
The invention relates to the technical field of antenna systems, and discloses a novel predetermined-point wireless control antenna retracting and releasing device which can realize a function of wirelessly controlling lodging of a center-fed antenna at a fixed point, and the whole system is composed of a wireless control box and a retracting and releasing actuator, the system is designed into a small-size and light-weight curved surface type, meanwhile, the functions of software limiting, wireless control and two-way signal transmission are added in cooperation with the control box, the system is more intelligent and portable in use and is not restrained by the installation position, and the system can set the fixed-point automatic lifting function by inputting the position in advance through the control box; or after the vehicle departs, the control box is manually controlled in real time to send a lifting instruction, so that the lifting action of the antenna of the retracting and releasing actuator is controlled by transmitting a signal at a designated place.
Owner:JIANGXI NAVIGATION APP FACTORY
Sum difference network SMP sintering tool
ActiveCN222146770UEasy to installfirmly connectedCoupling parts mountingCooling/ventilation/heating modificationsMechanical engineeringMaterials science
The utility model relates to the technical field of SMP connector sintering, in particular to a sum-difference network SMP sintering tool. According to the technical scheme, the sum-difference network SMP sintering tool comprises a substrate, an SMP connector, a positioning pin, a clamping groove and a protruding block, the clamping groove is formed in the SMP connector, the positioning pin is placed in the clamping groove, and the SMP connector is placed on the substrate in a limited mode through the positioning pin. According to the utility model, the perpendicularity and the height of six SMP connectors can be solved when the SMP connectors are sintered at the same time.
Owner:西安雷远电子科技有限公司
Steel net frame installation platform lifting and limiting device
The utility model provides a kind of steel net frame installation platform lifting limiting device, belong to steel net frame installation construction technical field, for the auxiliary steel net frame installation construction, it specifically includes shell, ranging module and magnetic attraction piece.The utility model, by design magnetic attraction piece, so that it can be quickly installed in the side of hydraulic jack, the data output end of ranging module is connected with the control system communication connection of hydraulic jack, so it can measure feedback the lifting height of hydraulic jack driven steel net frame installation platform in real time, when reaching limiting distance, it can feedback in time, ensure the safety of steel net frame installation platform lifting process, compared with traditional mechanical stop block and artificial monitoring, its limiting precision is high, not dependent on user experience.
Owner:SINOHYDRO BUREAU 6 CO LTD
Limiting structure for precise installation of steel pipe column and pile foundation
ActiveCN224092723UGuaranteed verticalityHigh limit accuracyStrutsFoundation engineeringArchitectural engineeringRebar
The utility model relates to the technical field of steel pipe columns, and discloses a limiting structure for accurate installation of a steel pipe column and a pile foundation, which comprises a limiting seat arranged on a steel bar frame of the pile foundation and used for limiting a plurality of foundation bolts, the lower parts of the foundation bolts penetrate into and are fixed in the pile foundation to form a fixed section, and the fixed section is fixed on the limiting seat. The upper portion of the foundation bolt extends to the position above the pile foundation to form a connecting section connected with the steel pipe column. A plurality of lower holes allowing the connecting sections to penetrate through are formed in the lower portion of the limiting seat, a plurality of upper holes allowing the connecting sections to penetrate through are formed in the upper portion of the limiting seat, the lower holes and the upper holes are formed in the circumferential direction of the limiting seat in a surrounding mode at intervals, and the upper holes and the lower holes are formed in an up-down longitudinal alignment mode; upper and lower two-layer positioning is formed by using the upper hole and the lower hole, so that the perpendicularity of the foundation bolt is ensured, and the limiting precision is high.
Owner:SHENZHEN MUNICIPAL ENG CORP
Blow molding process for protective films
The present invention discloses a blow molding process for protective film, including a support base and a blow molding head mounted on the support base, a traction frame is arranged above the support base, two oppositely arranged fixed plates are installed on the traction frame, a second electric cylinder is installed on the outer surface of one of the fixed plates opposite to the other fixed plate, the movable end of the second electric cylinder passes through the corresponding fixed plate and is connected to the second mounting plate located on the inner side of the fixed plate; the other end of the long strip extends away from the outer side of the other second mounting plate, a mounting rod is connected to one end of the mounting shaft connected to the first worm gear, a second worm gear is installed on the movable end of the drive motor, a circular ring is slidably mounted on the fixed rod, and a support rod is also provided. The present invention can improve the limiting accuracy of the transmission belt on the film tube, avoid the friction between the transmission belt and the film tube, and protect the film tube from damage.
Owner:SUZHOU XINZHONGDE NEW MATERIAL CO LTD
Radiator, air cooling equipment and radiator manufacturing method
ActiveCN119277739AHigh limit accuracyImprove production efficiencySound producing devicesModifications using gaseous coolantsHeat spreaderPhysics
The invention discloses a radiator, air cooling equipment and a radiator manufacturing method, and is applied to the field of radiator noise reduction, the radiator comprises a radiator body, the radiator body comprises a radiator main body and a plurality of radiator fins arranged on the radiator main body, and the thickness direction of the radiator fins is perpendicular to the airflow direction of a radiating channel in the air cooling equipment; the porous noise reduction component is used for absorbing aerodynamic noise, and the porous noise reduction component is installed on the side wall, in the thickness direction, of the radiator fin and extends in the airflow direction. According to the radiator provided by the invention, the porous noise reduction part is arranged, the porous medium material is utilized, the sound absorption and noise reduction area is formed on the surface of the radiator fin, the noise reduction purpose can be achieved, meanwhile, the influence on airflow in the heat dissipation channel can be reduced by limiting the extending direction of the porous noise reduction part, and the heat dissipation efficiency is improved. Therefore, the influence on the radiating effect of the radiator body is reduced.
Owner:INSPUR SUZHOU INTELLIGENT TECH CO LTD