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3327 results about "Support point" patented technology

Systems and methods of monitoring and control for trailer dynamics

Detection of trailer dynamic parameters is provided. A vehicle can receive a geometry of a plurality of points of support disposed along a longitudinal axis of the trailer. The vehicle can determine a center of mass of the trailer based on the plurality of points of support and weights bearing down thereupon. The vehicle can bound or otherwise determine, based on the geometry of the plurality of points of support and the center of mass, a moment of inertia of the trailer about at least one of the plurality of points of support. The vehicle can perform a navigational action based on the moment of inertia or center of mass.
Owner:TORC ROBOTICS INC

Continuous rigid frame bridge construction monitoring method

The invention discloses a continuous rigid frame bridge construction monitoring method which comprises the following steps: before cantilever casting construction, arranging linear monitoring points along the longitudinal axis direction of a bridge according to the spacing of 8-12 meters, and respectively arranging stress monitoring points on a top plate and a bottom plate of the root section of each section; synchronously acquiring three-dimensional coordinate data of the linear monitoring points and real-time strain data of the stress monitoring points in the process of pouring each section in a cantilever manner; the collected linear data and stress data are input into a finite element model for collaborative analysis, and when a linear deviation value exceeds + / -5% of a designed pre-camber value and the deviation between a stress measured value and a theoretical calculation value exceeds + / -8%, an adjustment instruction is automatically generated; according to the adjusting instruction, the elevation of the front fulcrum of the hanging basket is adjusted through the hydraulic jack during construction of the next section; after initial setting of the adjusted segment concrete, linear data and stress data are collected, and the actually measured data and a finite element model prediction value are compared and verified. The method can help to guarantee the safety and durability of the continuous rigid frame bridge.
Owner:CHINA ROAD & BRIDGE

Operation platform in caisson and mounting method for shaft wall formwork

The present invention relates to the technical field of construction of caissons. Disclosed are an operation platform in a caisson and a mounting method for a shaft wall formwork. The caisson platform consists of a platform base plate, a vertical rod assembly, a first horizontal support assembly and a second horizontal support assembly, wherein the rod assembly consists of a plurality of outer-ring vertical rods, a plurality of inner-ring vertical rods and central vertical rods; and the first horizontal support assembly and the second horizontal support assembly have the same structure, and each of the first horizontal support assembly and the second horizontal support assembly consists of a plurality of long diagonal support rods, a plurality of connecting rods and a plurality of short support rods. The present invention can provide supporting points for fixing inner formwork boards and, in combination with outer-ring reinforcing steel bars for outer formwork boards, can overcome impact force and lateral static pressure during concrete pouring, without needing to fix the formwork boards by using tie bolts. In addition, in a formwork assembly stage, the platform base plate can provide a working face for mounting the formwork. Thus, the present invention is convenient to operate, does not require assembly and disassembly, and can be directly hoisted and installed for use as a whole, thereby saving on time and labor.
Owner:ECOLOGICAL ENG CO LTD OF CCCC FIRST HARBOR ENG CO LTD +1

Optimization design method for multi-fulcrum elastic ring supporting structure of aero-engine rotor system

The invention relates to an optimization design method for a multi-fulcrum elastic ring supporting structure of an aero-engine rotor system, and belongs to the technical field of aero-engine vibration control and rotor dynamics simulation. Firstly, a finite element or lumped unit model is adopted to establish a coupling kinetic equation of a rotor and an elastic ring, and fluid-solid coupling factors such as inner and outer oil films of the elastic ring and orifice flow are considered; then, through critical rotating speed and vibration harmonic response analysis, sensitivity evaluation is carried out on rigidity and damping characteristics of different supporting positions, and target vibration reduction modes corresponding to all fulcrums are identified; then, coupling simulation and multi-objective optimization are carried out around the number of bosses of the elastic ring, the height of the bosses, the damping aperture, the thickness of a thin wall and other key structure parameters, and the optimal design meeting the vibration reduction requirement of a rotor system and the strength reliability requirement of the elastic ring is obtained through iteration; and finally, an optimization result is applied to structure manufacturing and assembling. The method can effectively reduce the vibration amplitude of the rotor when the rotor crosses the multi-order critical rotating speed.
Owner:BEIHANG UNIV

Internal and external galvanizing equipment for special pressure container

The invention discloses internal and external galvanization equipment for a special pressure vessel, and belongs to the technical field of pressure vessel galvanization, the internal and external galvanization equipment for the special pressure vessel comprises a placing mechanism for galvanization of the pressure vessel, the placing mechanism comprises a bottom plate and a lifting frame, and six connecting rods are fixedly mounted on the lifting frame; each connecting rod is provided with two taking and placing mechanisms used for clamping the pressure container to be galvanized. According to the invention, through the arrangement of the multi-station synchronous operation putting-in mechanism, the automatic lifting, translation and descending of the pressure container are realized, so that the galvanizing, unloading and loading processes are continuously carried out, and the production efficiency is greatly improved; according to the pick-and-place mechanism, through alternate driving of a driving triangular wheel and a driven triangular wheel, supporting points of a clamping rod are switched in a staged mode in the galvanization process, it is guaranteed that connecting lugs of a pressure container are not fixedly shielded, and galvanization blind areas are avoided; through cooperation of the compression spring and the lower friction ring, the passive triangular wheel is kept fixed in a non-driving state, and accidental rotation is prevented.
Owner:SHAANXI ZHONGZHENG SPECIAL EQUIPMENT SAFETY INSPECTION & TESTING CO LTD

Intelligent arrangement system and method for building construction engineering formwork supporting frames

The invention belongs to the technical field of intelligent construction, and provides an intelligent arrangement system and method for building construction engineering formwork supporting frames. A data input module; the intelligent arrangement algorithm module is used for analyzing the stress condition of the building structure, determining the position and the number of supporting points, selecting the type and the specification of a supporting frame and optimizing the position of the supporting frame; the three-dimensional simulation module is used for generating a three-dimensional model of the template support frame, simulating the mounting process of the support frame and evaluating the stability and safety of the support frame; the safety checking module is used for performing static analysis and dynamic analysis on the three-dimensional model of the support frame; the real-time monitoring module is used for monitoring the stress, deformation and inclination conditions of the supporting frame in real time; by integrating an intelligent algorithm, real-time dynamic analysis and a three-dimensional simulation technology, the design and layout of the formwork supporting frame are optimized, the construction efficiency and safety are improved, and efficient utilization of resources is achieved.
Owner:CHINA XINXING BAOXIN CONSTR CORP

Balancing device and method for monitoring walking of hanging basket

The invention discloses a balancing device and method for monitoring walking of a hanging basket, and relates to the technical field of constructional engineering construction.The balancing device comprises the hanging basket, walking rails and a double-shaft inclination sensor are arranged on the two sides of the hanging basket, and the double-shaft inclination sensor is installed at a node of the hanging basket and used for measuring the inclination angle of the hanging basket in the two perpendicular directions in real time; the pressure sensors are installed at walking wheels or supporting points of the hanging basket and used for measuring pressure borne by all the points, and the displacement sensors are installed beside walking rails on the two sides of the hanging basket and used for monitoring transverse displacement and longitudinal displacement of the hanging basket relative to the walking rails; according to the balancing device and method for monitoring the walking of the hanging basket, the monitoring capacity of the balance of the hanging basket is remarkably improved, accurate control in the construction process is guaranteed, the unbalanced state of the hanging basket is effectively prevented, and the construction risk is reduced.
Owner:POWERCHINA RAILWAY CONSTR +3

Inner supporting device and using method thereof

The invention provides an inner supporting device and a using method thereof, and relates to the technical field of inner supporting, the inner supporting device comprises three foot supports, four supporting rods and a locking rod; the three foot supports and one end of the lock rod are sequentially connected through the four supporting rods to form a closed structure in a surrounding mode. The rod end of each supporting rod is rotationally arranged on the corresponding foot support or the corresponding lock rod. When the two supporting rods connected with one section of the lock rod are collinear, the inner supporting device forms a triangular supporting structure with the three foot supports as supporting points, and the triangular supporting structure is used for being supported in a target structure. The locking rod is a telescopic rod, the other end of the locking rod is used for being supported on the target structure in a jacking mode so that the triangular supporting structure supported in the target structure can be kept stable, and dismounting operation on a reinforcing hoop of the column reinforcement cage is easy.
Owner:CHINA RAILWAY WUHAN BRIDGE ENG CONSULTING SUPERVISION CO LTD

Stator of an electric machine

The invention relates to a stator of an electric machine, comprising a laminated core (3) on which stator teeth (4) and stator grooves (5) are formed. The stator teeth (4) are connected via a stator yoke (7), and a conductor (9) or a conductor bundle (10) comprising a plurality of conductors (9) is arranged in each stator groove (5) in order to form a stator winding (8), wherein each of the stator grooves (5) has a groove base (5.1) and a groove slot (5.2). Each stator groove (5) is equipped with a plurality of connection points (11) for supporting the conductor (9) or conductor bundle (10) lying in the respective stator groove (5). At least one groove gap that forms a groove gap channel (14) through which a coolant can flow along a cooling path (15) is formed between the walls of each stator groove (5) and the respective conductor (9) or conductor bundle (10), and each groove gap channel (14) is at least constricted at the connection points (11), whereinthe groove slot (5.2) of each stator groove (5) is closed by a groove closure (16),a respective bypass (18) is provided in each stator groove (5) at each of the support points (11) in order to conduct the coolant past the constricted support point (11) in the groove gap channel (14), andthe bypasses (18) at the different support points (11) of the same stator groove (5) are arranged at different radial positions such that a meandering cooling path (15) is formed in the stator groove (5).
Owner:ROBERT BOSCH GMBH

Bionic crawling device

The invention relates to the technical field of bionics, in particular to a bionic crawling device which comprises a support, a driving unit and at least one pair of crawling mechanisms, and each pair of crawling mechanisms comprises two space crank structures; a phase difference exists between actions of the two space crank structures, and the tail ends of the outer sides of the two space crank structures are located at low positions in turn to bear the support; the space crank structure comprises an inner crank, a first fulcrum and an outer crank which are sequentially connected, the driving unit is used for driving the inner crank to do conical motion, the first fulcrum is rotationally connected to the support, the inner crank is arranged in the support in a translational motion mode, and the outer crank is arranged outside the support in a translational motion mode. Each pair of crawling mechanisms can be driven to act through one driving unit, the number of driving sources is small, the production and manufacturing cost is low, the space crank structure is good in working stability and small in occupied space, use of connecting rods and exposure of unnecessary parts are reduced, the bionic crawling device can be made more refined, and the service life of the bionic crawling device is prolonged. During crawling, the fluctuation range is small, and the crawling stability is good.
Owner:DONGGUAN ORUI TECHNOLOGY CO LTD

Workpiece supporting point switching device and chemical vapor deposition furnace

The invention discloses a workpiece supporting point switching device, and relates to the technical field of chemical vapor deposition. The supporting assembly is arranged on the end socket assembly and comprises a plurality of supporting columns located above the end socket assembly, and the supporting columns are used for supporting workpieces; the position changing assembly comprises a height switching drive and a plurality of position changing parts, the position changing parts and the supporting columns are arranged in parallel, and the height switching drive can drive the position changing parts to ascend and descend synchronously. The invention further provides a chemical vapor deposition furnace, the chemical vapor deposition furnace comprises a furnace body and the workpiece supporting point switching device, the supporting assembly and the transposition assembly are located in a reaction cavity of the furnace body, and the end socket assembly is plugged at an opening of the reaction cavity. When a workpiece supporting point is replaced, time and labor are saved, and the chemical vapor deposition efficiency is improved.
Owner:NINGBO YUANWU APPLIED MATERIALS CO LTD

Large-angle zero-gravity seat damage risk assessment method

The invention provides a large-angle zero-gravity seat damage risk assessment method, and the method comprises the following steps: S1, collecting the pressure and comfort data of a dummy at different angles and under different supporting point configurations through an experiment, and building a dummy simulation model suitable for a large-angle zero-gravity seat; s2, on the basis of the dummy simulation model of the large-angle zero-gravity seat, vehicle collision and impact tests are added, acceleration and impact force data under different seat adjusting angles are obtained, a large-angle zero-gravity seat passenger injury prediction simulation model is established, and therefore a injury prediction value is obtained; and S3, calculating a damage risk score according to the damage predicted value.
Owner:CHANGCHUN AUTOMOTIVE TEST CENT

Milling machining robot follow-up series-parallel supporting structure, vibration modeling and control method of milling machining robot follow-up series-parallel supporting structure

The invention discloses a milling robot follow-up series-parallel supporting structure, a vibration modeling method and a control method thereof, and relates to the field of milling. The milling robot follow-up series-parallel supporting structure is of a three-stage series-parallel configuration; comprising a supporting point equivalent unit, a robot equivalent unit and a workpiece supported area equivalent unit. The supporting point equivalent units are firstly connected in parallel, the supporting point equivalent units connected in parallel are connected in series with the robot equivalent unit, and the supporting point equivalent units connected in series and the robot equivalent unit are connected in parallel with the workpiece supported area equivalent system; the vibration modeling comprises a vibration equation corresponding to the vibration modeling, and the control method comprises two steps of control equation decoupling and design constraint following control. According to the milling robot follow-up series-parallel supporting structure adopting the robot follow-up supporting strategy and the constraint follow-up control method of the milling robot follow-up series-parallel supporting structure, the servo requirement of vibration control can be met with high precision and low cost.
Owner:HEFEI UNIV OF TECH

Tipping risk prediction method for working machine and related equipment

The invention discloses a rollover risk prediction method for an operation machine, and the method comprises the steps: determining target attitude information corresponding to the operation machine and a target rotation angle of the operation machine around a first rollover line under the condition that the operation machine is in a bucket supporting condition, the target posture information is used for representing the supporting posture of the operation machine under the bucket supporting working condition, and the first tip-over line is a connecting line between supporting points of the operation machine under the bucket supporting working condition; determining a target stability parameter corresponding to the operation machine based on the target attitude information, the target rotation angle and a preset mapping relation; the mapping relation is used for representing the relation among the rotation angle, the attitude information and the stability parameter of the operation machine; and determining the tipping risk of the operation machine according to the stability parameter. According to the invention, the tipping risk of the operation machine can be accurately determined.
Owner:ZOOMLION EARTHMOVING MASCH CO LTD +1

Method for applying prestress through single-point multi-jack synchronous beam falling forced displacement method

The invention belongs to the technical field of bridge construction, and particularly relates to a single-point multiple-jack synchronous beam falling forced displacement method prestress applying method which comprises the steps that S1, a plurality of temporary supporting points are arranged beside a permanent support, and a self-locking type beam bearing mechanism is installed on each temporary supporting point; meanwhile, a hydraulic jack is arranged at each temporary supporting point, the multiple hydraulic jacks are connected to a PLC integrated hydraulic synchronous control system through hydraulic pipelines, and synchronous linkage mechanisms are arranged among the multiple hydraulic jacks. According to the single-point multiple-jack synchronous beam falling forced displacement method prestress applying method, when an inner jacking pipe sleeve pushes a supporting cushion block to ascend and descend, through meshing of a self-locking gear and two self-locking racks, a secondary telescopic block can be forcibly driven to move synchronously, so that continuous stretching and retracting of a bearing beam are achieved, the cushion block does not need to be manually replaced after single beam falling, and the working efficiency is improved. The system automatically adjusts the height to meet the multi-stroke circulating beam falling requirement, and the construction efficiency is improved.
Owner:CHINA COMM SECOND PUBLIC OFFICE EAST CHINA CONSTR CO LTD

Grinding machine for metal workpiece

The grinding machine for the metal workpiece comprises a machine body, a three-jaw chuck is connected to the position of a main shaft of the machine body, a linear guide rail is connected to the top of the machine body, and a tool base is connected to the top of the linear guide rail; a grinding mechanism is arranged at the top of the tool base, supporting mechanisms are arranged at the positions, located on the two sides of the grinding mechanism, of the top of the tool base, a shaft workpiece is inserted into supporting rings in a penetrating mode, then one end of the shaft workpiece is clamped through a three-jaw chuck, and the supporting rings are arranged on the two sides of a machining part of the grinding mechanism for supporting; the supporting ring coaxial with the three-jaw chuck can well support the shaft workpieces, so that when some long shaft workpieces are machined, the problem that the grinding depths of the surfaces of the workpieces are inconsistent due to the fact that the shaft workpieces deform and bend due to the fact that a supporting point is far away from the machining position can be solved.
Owner:SUZHOU NUOSAIJIN ELECTRONIC MASCH CO LTD

Side sliding door with anti-shaking function

The side sliding door with the shaking prevention function comprises a door frame and a door body, the door frame and the door body are rotationally connected through a rotating shaft rod, the door frame is provided with a first single sliding rail and a second single sliding rail which are in rolling fit with the door body, and a supporting position is defined at the lower end of the door body; when the door body is pushed to drive the supporting position of the door body to move along the second single sliding rail, the upper end of the door body moves along the first single sliding rail. Through cooperation of the first single sliding rail, the second single sliding rail, the rotating shaft rod and other structures, in the moving process of the door body, the upper end of the door body and the first single sliding rail are provided with supporting points, and a second supporting point is arranged between the lower end of the door body and the second single sliding rail, so that even if a heavy glass door is used, the door body is not prone to falling off. The phenomenon of shaking does not occur in the moving process; the first single sliding rail and the second single sliding rail do not need to be arranged to be of an existing L-shaped structure, the structure is simple, and the production cost is effectively reduced.
Owner:ZHONGSHAN YOUPU SANITARY WARE CO LTD

Long-distance cable suspension auxiliary device

The utility model provides an auxiliary device for hanging a long-distance cable. The auxiliary device comprises a rope which is fixedly connected between a fixed point I and a fixed point II, at least one auxiliary support which is supported at a fixed point III in the middle section of the rope, and a plurality of hooks which are hung on the rope and are used for hanging the cable, wherein an elastic pulley block is arranged between the hook and the rope, a shell of the elastic pulley block is a C-shaped frame with an open groove, and the open groove allows the elastic pulley block to smoothly pass through the joint of the auxiliary support and the rope in the process of sliding along the rope. And meanwhile, the supporting point does not hinder the hook to move back and forth along the rope.
Owner:LIAONING TECHNICAL UNIVERSITY

Loading and unloading equipment for transportation engineering

The invention relates to the technical field of transportation, in particular to loading and unloading equipment for transportation engineering, and solves the problems that when the loading and unloading equipment for the transportation engineering such as train double-wing loading and unloading machines is used, the end corners of a belt conveyor receive downward pressure, and the downward pressure can influence the service life of a hydraulic air cylinder, so that the service life of the hydraulic air cylinder is influenced. And the outer surface of the belt conveyor is inevitably stained with dust and impurities in the conveying process, and if the dust and the impurities are not cleaned in time, the service life of a belt on the belt conveyor is influenced. Comprising a train double-wing loading and unloading machine movable base. A supporting point can be manufactured on one side of the lower end face of the belt conveyor through the hydraulic cylinder anti-fatigue supporting mechanism, a belt located on the belt conveyor can be automatically cleaned firstly through the self-cleaning maintenance mechanism, and a protective layer is automatically sprayed on the outer surface of the belt; by means of the technical scheme, the service life of the hydraulic air cylinder and the belt conveyor is prolonged.
Owner:HEILONGJIANG COMM POLYTECHNIC

Foundation pit safety evaluation method based on deep horizontal displacement deformation area of supporting structure

The invention discloses a foundation pit safety evaluation method based on a deep horizontal displacement deformation area of a support structure, and compared with a traditional single-point displacement control method, the method adopts a parameter of a continuous deformation area, early warning can be performed through deformation area cumulative effect analysis when single-point displacement does not exceed a limit, and the safety of a foundation pit is ensured. Compared with a traditional method, the method has the advantages that the response time is advanced by 30%-50%, a key window period is reserved for engineering reinforcement, the limitation of traditional single-point control is broken through, the overall instability trend of the foundation pit is accurately recognized, and the engineering risk of local standard reaching and overall out-of-control is avoided. Meanwhile, dynamic correction and weight distribution measurement of a design threshold value and an alarm value are provided in combination with conditions such as a construction stage and geological conditions, the sensitivity of key areas (such as pit bottoms and support weak positions) can be enhanced, and the evaluation reliability in a complex scene is improved.
Owner:YELLOW RIVER ENG CONSULTING CO LTD

Binary bundle conductor spacer installation robot

The invention discloses a two-bundle conductor spacer installation robot which comprises a walking mechanism, a spacer storage mechanism, a pin shaft storage mechanism, an operation arm and a clamping mechanism. The walking mechanism comprises a front walking mechanism and a rear walking mechanism, and the front walking mechanism comprises front walking wheels and a front walking driving mechanism; the rear walking mechanism comprises two groups of rear walking wheels, two groups of rear wheel carriers and two groups of turnover driving mechanisms, each group of rear walking wheels at least comprises three rear walking wheels which are uniformly arranged in the circumferential direction, and the rear walking wheels are rotationally connected to the rear wheel carriers; in a working state, the mounting position of the spacer on the electric wire is located between the front walking wheel and the rear walking wheel. According to the mounting robot, the spacer mounting position is arranged between the supporting points, the axis of the spacer pin shaft hole is parallel to the slope where the robot is located, the pin shaft hole space posture recognition operation is omitted, and the mounting efficiency and the success rate are improved.
Owner:ANGFENG (FOSHAN) TECHNOLOGY CO LTD

Spraying device for automobile trim panel and spraying process of spraying device

The invention belongs to the technical field of spraying devices, and particularly relates to the technical field of coating spraying devices for controlling spraying areas, in particular to a spraying device for an automobile trim panel and a spraying process of the spraying device. The device comprises an operation table, at least one spraying box is arranged on the upper end face of the operation table, and a sprayer is arranged in the spraying box; the conveying chain is provided with a plurality of loading tables, and matched gears are mounted on the loading tables; the rotating chain is arranged in the spraying box; a vertical rod is arranged on the loading table in the height direction; a plurality of lifting columns are uniformly arranged in the circumferential direction of the vertical rod; a plurality of push rods are evenly arranged in the matching gear in the circumferential direction, and the outer side ends of the push rods protrude out of the tooth root of the matching gear in the radial direction. By arranging the push rod and the lifting column, the workpiece can be lifted through the lifting column to spray the edge of the bottom of the workpiece while the push rod and the lifting column are matched with the gear to rotate, different supporting points are switched by switching different lifting columns, and it is ensured that the contact part of each lifting column can also be fully sprayed with paint after the workpiece is pushed by the lifting columns.
Owner:江苏安江汽车部件有限公司

Anti-unbalance loading sliding block active deviation rectifying method for hydraulic machine sliding block

The invention discloses an anti-unbalance-loading sliding block active deviation correction method for a hydraulic machine sliding block, and the method specifically comprises the following steps: 1, unbalance loading detection: collecting displacement deviations [delta] x and [delta] y of the sliding block in X / Y directions in real time, installing a pressure sensor in a hydraulic cylinder oil path, detecting to obtain pressure data N, obtaining the pressure value of each supporting point, and calculating the deviation of the sliding block in the X / Y direction; calculating an offset center distance e and an offset load moment M according to the pressure data; the displacement deviation delta x and the displacement deviation delta y are compared with a preset threshold value, whether deviation rectification is triggered or not is judged, and if the deviation rectification is triggered, the mapping relation between the sliding block inclination angle theta and the hydraulic cylinder pressure compensation amount delta P is established through a mechanical model. According to the anti-unbalance-load active deviation correction method for the hydraulic press sliding block, displacement, pressure and dip angle data are combined, the unbalance-load recognition precision is improved, response is fast, PID parameters are adjusted in real time according to load changes, the accuracy of the position of the sliding block under different working conditions is adapted, and high-precision deviation correction is achieved.
Owner:HEFEI UNIV OF TECH

Cable snakelike laying fixing device and laying method for high-fall terrain

The invention belongs to the technical field of cable laying, and relates to a cable snakelike laying fixing device and laying method for a high-fall terrain. The cable fixing device comprises two corner pulley blocks, at least one vertical support is arranged between the two corner pulley blocks, the vertical support is connected with a cable clamp through an adjustable detachable connecting piece, and the cable clamp is used for fixing a cable on the vertical support. The vertical support serves as a supporting point for cable laying, and the cable can be stably fixed. In actual construction, the number of the vertical supports can be selected according to requirements. The adjustable detachable connecting piece enables the cable clamp to be flexibly adjusted according to laying requirements of a cable, and ensures that the cable is firmly clamped and cannot be damaged due to over-tightness or over-looseness. The direction of the cable can be flexibly adjusted through the corner pulley block, so that the cable is smoothly transited in a high-fall terrain, the snake width adjusting requirement can be met, stress concentration and abrasion caused by direct bending of the cable can be reduced, and safe operation of the cable is facilitated.
Owner:POWER RES INST OF STATE GRID SHAANXI ELECTRIC POWER CO LTD +1

Foundation pit supporting device for building construction

The utility model relates to the technical field of building construction, and discloses a building construction foundation pit supporting device which comprises a first base plate and a second base plate, the front side of the first base plate is fixedly connected with adjusting plates, the front sides of the two adjusting plates are in threaded connection with fixing bolts, the front sides of the two adjusting plates are provided with adjusting grooves, and the adjusting grooves are in threaded connection with the fixing bolts. The front sides of the two adjusting plates are slidably connected with mounting plates, the front sides of the two mounting plates are in threaded connection with adjusting bolts, and the rear ends of the two adjusting bolts penetrate through the front sides of the mounting plates and are fixedly connected with special-shaped parts. The special-shaped part is driven to be inserted into the fixing part by rotating the adjusting bolt, so that the clamping parts are fixed to the adjusting plates on the two sides of the adjusting groove, the supporting point is adjusted, the inserting plate is aligned with the mounting groove to be inserted, the clamping plate and the inserting plate are clamped, the first spring drives the clamping block to be clamped into the clamping groove, and the supporting point is adjusted. And the splicing processing is quickly completed.
Owner:刘彦泽

Low-cost full-load motor

The invention discloses a low-cost full-load motor which comprises a rotor, a stator and a hollow rotating shaft, the hollow rotating shaft is arranged on the rotor through a rotor hub and used for transmitting torque, a bearing assembly is arranged between the hollow rotating shaft and the stator in the axial direction, and floating end bearings and fixed end bearings of the assembly are arranged at intervals in the axial direction of the hollow rotating shaft. And the hollow rotating shaft is axially positioned relative to the bearing seat by the fixed end bearing supporting point. The floating end bearing supporting point can bear axial displacement generated when the distance between the two bearings is changed due to thermal expansion of the hollow rotating shaft relative to the bearing seat, and the accumulated tolerance of components influencing the distance between the two bearings is made up. The problems that a conventional motor is high in manufacturing cost, tedious in assembly and troublesome in maintenance are solved. Besides, the motor has a full-bearing function, the output end of the motor can be connected with a load end with any load direction change and operates stably, the load end does not need to be connected after a bearing structure is switched over, and the problems of large occupied space and high weight are solved.
Owner:ZHUHAI LONHUA HELICOPTERS TECH CO LTD

Automatic storage method and system for glass plate processing

The invention provides an automatic storage method and system for glass plate processing, and relates to the technical field of glass plate transfer, the method comprises the following steps: after detecting that a glass plate is in contact with a carrying frame, acquiring first pressure data detected by each supporting point in real time; if the first pressure data is smaller than or equal to the first pressure threshold value all the time, the pressure difference value between the different supporting points is calculated; after the two supporting points with the pressure difference values larger than a second pressure threshold value are determined, the glass plate is controlled to move in the direction where the supporting point with the small pressure value is located till the pressure difference values are both smaller than the second pressure threshold value; and after the carrying frame starts to move, if it is detected that the vibration amplitude is larger than a preset vibration threshold value or the second pressure data is larger than the first pressure threshold value, abrasion early warning is conducted. By implementing the method, stress concentration caused by non-uniform supporting can be reduced, so that the damage risk is reduced, and the stability and safety of the glass plate in the carrying process are effectively ensured.
Owner:GUDE PRECISION (JIANGSU) CO LTD

Balance weight difference adjusting method for hogging moment area jacking of special-shaped multi-girder steel-concrete composite beam

The invention provides a counterweight difference adjustment method for hogging moment area jacking of a special-shaped multi-girder steel-concrete composite beam, which comprises the following steps of: establishing a finite element model of the special-shaped multi-girder steel-concrete composite beam, and arranging two ends and the middle part of the special-shaped multi-girder steel-concrete composite beam on a beam column; performing jacking height simulation of different numerical values on the special-shaped multi-girder steel-concrete composite beam at the middle supporting point for many times to obtain a first bridge deck stress result at the middle supporting point; carrying out balance weight difference adjustment finite element simulation on the basis of the first bridge deck stress result, and applying a balance weight along the line type of the main beam to adjust the pre-compressive stress of the bridge deck at the middle fulcrum of the main beam so as to achieve a design target; and the concrete bridge deck is constructed on the basis of counterweight data obtained through counterweight difference adjustment finite element simulation. By establishing a finite element model and carrying out multi-group jacking height simulation and subsequent counterweight difference adjustment simulation, the stress state of the bridge deck at the middle fulcrum of each main beam under different working conditions can be accurately determined. The counter weight is applied on the basis, so that the stress nonuniformity caused by a special-shaped structure and a multi-girder system can be effectively made up, the pre-compressive stress of the bridge deck at the middle supporting point of each girder is more uniform, and the design goal is accurately achieved.
Owner:NINGBO MUNICIPAL ENG CONSTR GROUP +1

Edge searching equipment suitable for wafers of multiple specifications

The utility model discloses an edge searching device suitable for wafers of multiple specifications, which belongs to the technical field of semiconductor processing and manufacturing, and specifically comprises a base, an edge searching rotating shaft, an edge fixing assembly, a wafer frame and an adjusting assembly, and the edge searching rotating shaft is horizontally arranged on the base and can rotate on the base; the edge positioning assembly is arranged on the base and is axially provided with the wafer rack along the edge searching rotating shaft, the wafer rack is used for bearing a vertical wafer, the straight edge of the wafer can downwards extend out of the wafer rack, and the wafer rack comprises a side plate for preventing the wafer from toppling and at least one supporting point for supporting the wafer; the adjusting assembly is used for adjusting the distance between the edge fixing assembly and the topmost element line of the cross section of the edge searching rotating shaft. According to the utility model, by arranging the adjusting assembly, the distance between the edge positioning assembly and the topmost tessellation line of the cross section of the edge searching rotating shaft can be adjusted, so that the product can be applied to wafers of positioning straight lines with different lengths in the same specification or different specifications.
Owner:XINGYUHONG SEMICON TECH (SUZHOU) CO LTD

Manufacturing method of electric storage device

To provide a manufacturing method of an electric storage device, capable of correcting an accuracy necessary surface of a sealing body within a reference value by changing a correction deformation magnitude in accordance with a wrapping displacement magnitude of the sealing body.SOLUTION: The present invention provides a manufacturing method of an electric storage device 10 having a correction step S4 of correcting a sealing body 12. The manufacturing method contains: a data base formation step S1 of having an accuracy necessary surface 12S in the sealing body, and accumulating correlation graph data SKD of a wrapping displacement magnitude Q of a front and back direction (a z-direction) of an accuracy necessary surface against a support point 12K of the sealing body and a correction deformation magnitude P in which the accuracy necessary surface is corrected and deformed to front and back opposite directions to a position where an accuracy requirement surface can be recovered to a normal position SK by own elastic force; a surface modulation measurement step S2 of measuring the wrapping displacement magnitude; and a displacement magnitude determination step S3 of determining whether the wrapping displacement magnitude satisfies a reference value KJ. In the correction step, a load is applied until the correction deformation magnitude occurs when the wrapping displacement magnitude to be measured in the surface modulation measurement step to the accuracy necessary surface in a determination rejection is matched to the wrapping displacement magnitude in the correlation graph data to be released.SELECTED DRAWING: Figure 5
Owner:PRIME PLANET ENERGY & SOLUTIONS INC