4135 results about "Pull force" patented technology

The invention relates to the field of wafer processing, and discloses a wafer grinding and polishing adjustment control system based on a tension sensor, which comprises a processing pressure acquisition module for acquiring the gravity of a heavy object, acquiring the tension of an electric cylinder in real time based on the tension sensor, calculating the processing pressure through a formula, and acquiring grinding state parameters of a wafer in real time; the processing pressure stability analysis module comprises a first analysis unit and a second analysis unit; the first analysis unit is used for calculating the accumulated variable quantity of the processing pressure in a preset monitoring period, comparing the accumulated variable quantity with a change threshold value and sending out an alarm signal; the second analysis unit inputs the grinding state parameters into a grinding state model to analyze a grinding state value, and reversely evaluates the state of the grinding disc; the adjusting control module adjusts the pulling force of the electric cylinder based on the first analysis unit and judges whether the grinding disc is replaced based on the second analysis unit. Accurate monitoring and stability control of the machining pressure are achieved, the state of the grinding disc can be effectively evaluated, and the wafer grinding and polishing quality and efficiency are improved.

The invention discloses a state transition pump shaft simulation load run-out detection system which comprises a pump, a dial indicator and a pull and push dynamometer. The pump shaft is provided with a driving disc and a stress disc, and the driving disc, the pump shaft and the stress disc are located on the same central axis. The dial indicator can be selectively configured in a radial run-out detection state by adjusting the position of the dial indicator and the direction of a measuring head, wherein the measuring head is perpendicular to the central axis and abuts against the outer circumferential surface of the pump shaft; in the axial run-out detection state, the measuring head is overlapped or parallel to the central axis and abuts against the axial end face of the pump shaft; the push-pull dynamometer can be selectively configured in a radial force application state by adjusting the position of the push-pull dynamometer and the direction of a force application end, wherein the force application end is perpendicular to the central axis and abuts against the outer circumferential surface of the stress disc, and a radial simulation load is applied; in the axial force application state, the force application end is parallel to the central axis and abuts against the disc end face of the stress disc, and an axial simulation load is applied. Through the state conversion of the same detection and force application device, the radial and axial runout integrated detection of the pump shaft under the simulated load is realized.

The utility model relates to a foldable propeller and a cross-medium aircraft with the same, the foldable propeller comprises a propeller hub controlled to rotate, a limiting structure arranged at the end part of the propeller hub and a plurality of blades uniformly arranged around the axis of the propeller hub, and each blade is hinged with the propeller hub; the hinged axis between the paddle and the propeller hub is perpendicular to the rotating axis of the propeller hub, and the limiting structure is located at the front end of the propeller hub in the direction of the pulling force generated when the paddle rotates along with the propeller hub; when the propeller hub rotates, the blades hinged to the propeller hub rotate and unfold under the action of centrifugal force to abut against the limiting structure. When the propeller hub stops rotating, the blades hinged to the propeller hub are folded to be close to the rotating axis of the propeller hub due to self weight or fluid resistance in the underwater flight process. The propellers are configured to be of a foldable structural form, so that the propellers are not prone to being impacted by water flow and damaged, meanwhile, turbulent flow generated when the water flow passes through the propellers is reduced, and the speed and stability of the cross-medium aircraft in the underwater flight process are improved.

The invention relates to the technical field of machine tool cross beams, in particular to a numerical control gantry machine tool cross beam anti-deformation device which comprises a cross beam, two symmetrically-distributed top connecting pieces are rotationally installed at the top of an inner cavity of the cross beam, and two symmetrically-distributed bottom connecting pieces are rotationally installed at the bottom of the inner cavity of the cross beam. The distance between the two bottom connecting pieces is smaller than that between the two top connecting pieces, tensioning assemblies with adjustable tightness are installed between the bottom connecting pieces and the adjacent top connecting pieces, the two top connecting pieces are located at the two ends of the cross beam, and the two bottom connecting pieces are located in the middle of the cross beam. According to the invention, through the top connecting piece, the bottom connecting piece and the tensioning assembly, an obliquely upward pulling force is applied to the cross beam, the pulling force is decomposed into a vertically upward force and a horizontal force, and the vertical force can offset the gravity of the middle part of the cross beam, so that the downward bending deformation of the cross beam is reduced, and the purpose of reversible deformation is achieved.

The invention provides a rotary table bearing-torque motor thermal vibration coupling modeling method, and relates to the technical field of machine tool reliability analysis. Comprising the steps of calculating bearing restoring force, torque and elastic rigidity; giving a dynamic balance equation of the main shaft system; unbalanced magnetic pulling force and unbalanced mass excitation are calculated; a displacement field is solved, and load changes caused by the displacement field are transmitted to the thermal model; the contact force borne by the bearing is updated by considering the load effect related to displacement, and the friction heat generation of the bearing and the heat generation of each part of the motor are calculated; calculating thermal deformation and thermal displacement of the bearing; thermal resistance among nodes is calculated, and a temperature field equilibrium equation is given through a thermal resistance network to achieve rapid thermal-mechanical coupling analysis; the thermal equilibrium equation is solved to calculate temperature response; importing the latest temperature into the kinetic model; lubricating grease viscosity and bearing thermal deformation are updated; and repeating the steps to finally obtain the main shaft displacement field and temperature field response. The method is high in accuracy, high in universality, low in test cost and high in test efficiency.

The invention provides a system and method for testing the shear resistance of an anchoring structural plane under water-force coupling, and the system comprises a prestress loading device which provides a prestress for an anchoring body sample, so that the structural plane is provided with a water flow channel with controllable opening degree; the shearing device is used for applying shearing force to the anchoring body sample to enable the structural surface to slide so as to damage the mortar protective layer; the high-pressure corrosion device is used for providing an osmotic pressure environment for the anchoring body sample so that a corrosion solution permeates into the structural surface to corrode the anchor cable, and the data acquisition device is used for monitoring sliding displacement, shearing force, pulling force, water pressure and ion concentration of the structural surface; the anchor cable corrosion damage coefficient calculation device is used for obtaining an anchor cable corrosion damage coefficient in the anchoring structure surface; the residual shear strength calculating device is used for obtaining the residual shear strength of the anchored structural surface after corrosion; and the anchoring body safety evaluation device is used for evaluating the safety state of the anchoring body. The method solves the problem of testing the residual shear strength of the anchoring structural surface considering the corrosion damage of the anchor cable under the synergistic effect of multiple factors.

The invention relates to the technical field of insertion and extraction force testing, and discloses a detection device and method for automobile exterior trimming part assembling, and the device comprises a bottom frame, a tension testing assembly, a vibration mechanism, and an extrusion mechanism, the vibration mechanism comprises a gear-missing column, a moving plate, a first electric push rod, a placing plate, and a vibration spring, and the bottom frame is provided with a sliding groove. The moving plate is slidably connected into the sliding groove, the first electric push rod is fixedly installed in the sliding groove, the output end of the first electric push rod is fixedly connected with the side wall of one end of the moving plate, one end of the vibration spring is fixedly connected to the bottom frame, the placing plate is fixedly connected to the other end of the vibration spring, and a mounting block is arranged on the bottom frame. According to the device, the vibration mechanism and the extrusion mechanism are matched, so that the bumper support on the placement plate continuously shakes, various road surface vibrations borne by an automobile in the driving process are simulated, and the reliability of the buckle under long-term vibration is accurately evaluated.

The invention relates to the technical field of welding equipment, in particular to an adjusting device for steel structure welding. Comprising a base, a clamp is installed on the base, the device further comprises a measuring mechanism, the measuring mechanism comprises a U-shaped plate, the clamp is installed on the top face of the U-shaped plate, the U-shaped plate is arranged on the upper side of the base, a swing frame is hinged to the front side of the U-shaped plate, a first torsion spring is arranged between the swing frame and the U-shaped plate, a rectangular plate is fixedly connected to the top of the swing frame, and a universal shaft is fixedly connected to one side of the rectangular plate. According to the invention, through the design of the measuring mechanism, in the process of placing the I-shaped steel, the inclined surface of the I-shaped steel is contacted with and extrudes the rear side surface of the contact plate, so that the contact plate can rotate by taking the joint of the universal shaft as the circle center, and tension or thrust is applied to the telescopic ends of the first telescopic rod and the second telescopic rod; therefore, the inclined plane of the I-shaped steel is measured, the angle of the I-shaped steel can be adjusted subsequently, and the I-shaped steel can be welded more conveniently.

The invention provides a spring steel wire tension detection device capable of being quickly disassembled and assembled, which belongs to the technical field of steel wire detection and comprises a tensile machine, a buffer mechanism, a fixing mechanism, a locking mechanism and a triggering mechanism. The tensile machine comprises two clamps, and each clamp comprises a buffer mechanism arranged on the tensile machine and used for providing buffer force for a spring steel wire; the fixing mechanism is connected with the buffering mechanism, and the fixing mechanism is matched with the buffering mechanism to clamp and fix the spring steel wire; the locking mechanism is arranged on the buffering mechanism, and the fixing mechanism is limited and locked by the locking mechanism; and the triggering mechanism is arranged on the buffering mechanism, and the buffering mechanism triggers the triggering mechanism to move so as to relieve limiting of the locking mechanism to the fixing mechanism. According to the device, limiting can be automatically relieved after the spring steel wire is broken, an operator does not need to manually conduct complex unlocking operation, the spring steel wire can be rapidly pulled away, rapid dismounting of the spring steel wire is achieved, and the working efficiency is remarkably improved.

The utility model discloses a crane lifting rope limiting device in the technical field of crane lifting hooks, which comprises an anti-falling mechanism, the anti-falling mechanism comprises a hook, the hook comprises a connecting end and a hook body, the tail end of the hook body is fixedly connected with the lower end of the connecting end, an assembly groove is formed in the hook in a penetrating manner, a winding disc is rotatably arranged in the assembly groove, and the winding disc is fixedly connected with the hook body. A rotating shaft is movably inserted into the winding disc, the two ends of the rotating shaft are sleeved with anti-disengaging pieces, the head end of the hook body is fixedly connected with a limiting block, and the ends, away from the rotating shaft, of the anti-disengaging pieces abut against the limiting block. The limiting mechanism comprises a torsional spring arranged on the winding disc in a sleeving manner; during use, when the torsion spring drives the winding disc and the anti-disengaging piece to deflect upwards, a steel cable is unwound, at the moment, the limiting piece loses tension, meanwhile, the limiting piece is pushed to move upwards through the first spring, at the moment, the lifting rope is conveniently limited through the limiting piece, the possibility that the lifting rope continuously shakes in the hook body is reduced, and the lifting rope is more convenient to limit.

The invention discloses a bolt guarantee load testing method based on ultrasonic waves, which comprises the following steps: pasting a ceramic patch on the head of a bolt, and measuring the length change of the bolt before and after loading by using the ultrasonic waves to judge whether the bolt meets the guarantee load requirement, and comprises the following steps: firstly, measuring the initial length L0 of the bolt; a guarantee load is applied according to the GB / T3098.1 standard and kept for 15 seconds, the length L1 of the bolt is measured again after unloading, and if the difference value of L1 and L0 is within the range of + / -5 microns, the bolt is judged to be qualified; otherwise, increasing 3% of the load for retesting; according to the method, the contact error of traditional mechanical measurement is avoided, the measurement precision is improved, and a more accurate and convenient technical means is provided for quality control of high-requirement fasteners.

The invention relates to the technical field of six-dimensional force sensor calibration, in particular to a high-precision six-dimensional force sensor calibration device and calibration method. The invention provides a high-precision six-dimensional force sensor calibration device which comprises a base, a calibration platform, a cross force application frame, an S-shaped tension sensor and a fixed pulley. The calibration platform is arranged on the base and is used for fixing the six-dimensional force sensor; the center point of the cross force application frame is connected to the six-dimensional force sensor, a plurality of fixed pulleys are arranged on the calibration platform, a plurality of S-shaped tension sensors are arranged on the cross force application frame, and loads are applied to the S-shaped tension sensors or directly applied to the cross force application frame through connection of a weight set and a rope and guidance of the fixed pulleys. Therefore, a single-dimensional force, a single-dimensional torque, a composite force or a composite torque is applied to the six-dimensional force sensor. Accurate loading of the six-dimensional force sensor is achieved, the device is simple in structure and convenient to operate, independent calibration of single-dimensional force / torque can be achieved, and combined loading can also be conducted.

The invention relates to the technical field of prestressed structures, in particular to a fully parameterized prestressed steel beam model construction method and system.The fully parameterized prestressed steel beam model construction method comprises the following steps that stage vertical displacement data are obtained, abnormal values are screened out, a stage data set is obtained, node data are selected according to the steel beam path relation, and differences are calculated and sorted; the method comprises the steps of dynamically monitoring node displacement, correcting node tension values in combination with friction resistance and anchorage device slippage, screening support node abnormity, finely adjusting node positions, extracting temperature data, adjusting node tension parameters and obtaining a full-parameterization steel beam layout data set, and in the method, node displacement is dynamically monitored, the displacement difference of starting and ending nodes of a steel beam path is adjusted, node tension force is corrected in real time, and a full-parameterization steel beam layout data set is obtained. And a full-parameterization steel beam layout data set is obtained by combining the support node displacement and the temperature change and optimizing the tension parameters, so that the structure is matched with the dynamic change in the construction process, and the adaptability and the long-term reliability of the structure are enhanced.

The invention relates to the technical field of chip welding strength detection, and discloses a welding wire push-pull force detection machine and a detection method for welding wire push-pull force, the welding wire push-pull force detection machine comprises a rack, a test bin, a clamp, a test disc, a speed reduction control mechanism and an elastic force reversing transmission mechanism, the test bin can vertically ascend and descend relative to the rack, and the clamp can horizontally move relative to the rack; the test disc and the speed reduction control mechanism are both mounted in the test bin; according to the welding wire push-pull force detection machine, through cooperation of the speed reduction control mechanism and the elastic force reversing transmission mechanism, when the test bin moves downwards, the contact plate firstly makes contact with the clamp, and the induction assembly monitors the position of the contact plate so as to reduce the descending speed of the test bin; the lever pushes the reset spring to stretch to the maximum length and then automatically shrinks, and the contact plate is pulled to move upwards to be separated from the clamp. An additional control structure is not needed, the contact plate is prevented from hindering detection, the problem that the testing head moves downwards rapidly and is prone to collision is solved, and smooth detection is guaranteed.

The invention discloses a concrete cantilever structure pull-up formwork construction method which is characterized by comprising the following steps: load calculation and component model selection; pre-burying the U-shaped bolts; pre-burying the upper-section pull rod; i-shaped steel end connecting plates are welded, and double-layer angle steel connecting plates are welded to the cantilever ends of the I-shaped steel; i-shaped steel cantilever girders are installed; assembling a pull rod system; the pull rods are fastened and leveled with a system, the two pull rods are synchronously fastened, the double rods are ensured to simultaneously advance and retreat during adjustment of an adjusting device, and a level gauge is used for observation and leveling after initial adjustment; the formwork frame and the safety enclosure are installed; pull rod pre-tensioning and deflection monitoring are carried out, pre-tension force is applied through an adjusting device, the deflection of the cantilever end is detected, monitoring points are arranged, and a deformation early warning mechanism is established; regulating and controlling concrete pouring; and removing the mold and recycling. The overhanging structure is high in anti-overturning capacity and suitable for large-span and special-shaped overhanging structures, and the safety is remarkably improved.

The utility model provides a test device for a ceiling clothes airing machine. The test device comprises a rack; the left test pull rope is used as a test pull rope for providing vertical upward pulling force for the first airing rod steel wire rope; the right test pull rope is used as a test pull rope for providing vertical upward pulling force for the second airing rod steel wire rope; the two ends of the cross rod are detachably connected with the wire outlet tail end of the first airing rod steel wire rope and the wire outlet tail end of the second airing rod steel wire rope respectively during testing; the two end parts of the cross rod are fixedly connected with one end part of the left test pull rope and one end part of the right test pull rope respectively; the pre-mounting piece device is used for providing vertically upward pulling force for the cross rod through the gravity of the pre-mounting piece device; the weighted mounting piece device is used for carrying out load pressing on the pre-mounting piece device during testing; and the lifting assembly is used for lifting and lifting the weight-increasing mounting piece device. According to the utility model, the steel wire rope of the suspended ceiling clothes airing machine can be accurately and efficiently detected in a load-bearing state in a manpower-saving manner.

The invention relates to a clamping device for plugging detection of an automobile joint system, which comprises a multi-direction vibration table, the multi-direction vibration table comprises a workbench, a track strip, an arc-shaped boss, a turntable, a threaded rod and a sliding plate, the sliding plate is provided with a rotary clamping mechanism, and the rotary clamping mechanism comprises a lifting plate, a rotary seat and a worm transmission mechanism. A rotating angle limiting mechanism is arranged on one side of the lifting plate, a connector body is fixed to the rotating base and connected with a butt joint wire harness, and an inserting and pulling force adjusting mechanism is installed on the rear side of the workbench and used for applying adjustable upward pulling force. Multi-direction vibration simulation is achieved through composite motion of the sliding plate and the lifting plate, clamping direction adjustment is achieved through the worm and the rotating seat structure, angle changes in the vibration process are effectively limited through the rotating angle limiting mechanism, the pulling-out force is flexibly controlled through the inserting and pulling force adjusting mechanism, and the clamping direction is adjusted. The simulation performance of the detection environment, the clamping stability and the detection precision can be improved.

The invention discloses a cable mechanical property testing device and method, and relates to the technical field of cable detection.The cable mechanical property testing device comprises a clamping mechanism, a tension applying mechanism, a torsion applying mechanism and a bending mechanism, the pulling force applying mechanism comprises two force applying moving frames and a pulling force driving assembly; the torsion applying mechanism comprises two torsion driving assemblies installed on the two swing seats correspondingly, and the two torsion driving assemblies are used for driving the two clamps to rotate correspondingly. The bending mechanism comprises a bending abutting assembly located between the two clamps and a bending driving assembly in transmission connection with the bending abutting assembly. The tensile property test, the distortion resistance test and the bending resistance test can be continuously completed through one-time clamping of the cable, different actual installation and use scenes of the cable can be simulated, and the accuracy of tensile property, distortion resistance and bending resistance test results of the cable is improved.

The present invention relates to a five-degree-of-freedom ultra-high-speed bearingless permanent magnet motor. Both ends of a cylindrical solid permanent magnet are respectively connected to a rotating shaft. A casing is installed outside the cylindrical solid permanent magnet. A stator core is fixedly installed on the casing. A set of torque windings is embedded in the bottom layer of the stator core, and two sets of suspension windings are embedded in the upper layer of the stator core. End covers are fixedly installed on both sides of the casing. Auxiliary bearings are installed between the end covers and the rotating shaft. Passive permanent magnet bearings are nested on both the end covers and the rotating shaft. The present invention is reasonably designed, integrating a magnetic suspension bearing and a permanent magnet motor into one. While the motor generates an electromagnetic torque capable of driving the rotor to rotate, it can also generate a radial suspension force to overcome the rotor gravity and unilateral magnetic pull force, simplifying the motor structure and shortening the axial length of the motor. The double suspension windings and the axial passive permanent magnet magnetic bearing achieve five-degree-of-freedom control, increasing the rotor stiffness and critical speed of the ultra-high-speed motor, and improving the operation stability and anti-disturbance ability.

The invention belongs to the technical field of welding platforms, and particularly relates to an immersed tube overwater welding operation platform which comprises a floating box, a welding supporting mechanism and a plurality of pipeline locking mechanisms, and the inner wall of the floating box is divided into nine air floating chambers through partition plates. The pipeline can float on the water surface to complete welding butt joint, butt joint of pipelines of different lengths is adapted, and the quality efficiency is guaranteed by monitoring the inclination state of the floating box and the welding platform in real time and adjusting the balance weight to prevent tipping and create a stable welding environment; stable fixed tension is provided, wind power and water flow influences are resisted, position deviation is prevented, reverse compensation force can be provided in cooperation with a propeller when large driving force is applied in one direction, fatigue damage of a traction rope due to continuous impact force is avoided, rapid water supply and drainage of the buoyancy tank are achieved, water is rapidly injected to increase the overall weight when large impact force is applied, and the tensile force of the traction rope is improved in a matched mode; the water flow pushing efficiency is reduced, the resistance stability is improved, and the positioning effect is optimized.

The utility model discloses a drawing instrument capable of monitoring the displacement amount of an anchor rod in real time, which comprises a counter-force gasket, a sleeve, a tension oil cylinder, a steel wire type spring displacement meter and a connecting rod, the counter-force gasket, the sleeve and the tension oil cylinder are sequentially arranged in a contact mode, one end of the connecting rod penetrates through the tension oil cylinder and the sleeve and then is in threaded connection with the exposed end of the anchor rod, and the other end of the connecting rod is in threaded connection with the steel wire type spring displacement meter. The other end penetrates through the tension oil cylinder and then is in threaded connection with a locking nut; the steel wire type spring displacement meter is arranged on the counter-force gasket and the tension oil cylinder and is fixed through elastic force of the steel wire type spring displacement meter. The drawing instrument provided by the utility model can measure and record the displacement of the anchor rod in real time in the drawing process of the anchor rod, simultaneously generates an anchor rod displacement-time whole-process curve, observes the displacement change trend of the anchor rod, and can export data in the later period, so that engineers can comprehensively evaluate the performance of the anchor rod.

The invention belongs to the technical field of simulation analysis, and particularly relates to an electric spindle multi-physics field coupling simulation method. The motorized spindle multi-physics field coupling simulation method comprises the following steps that S100, a multi-physics field coupling model is established through finite element software, wherein the steps of geometric model importing, material setting, rotor dynamics module setting, solid heat transfer module setting and grid division are included; and S200, solving through the finite element software: carrying out multi-physics field coupling on the bearing nonlinear restoring force model, the motor unbalanced magnetic pulling force model and the main shaft thermal model with the motorized main shaft rotor model, and solving to obtain the dynamic performance. By using the simulation model for motorized spindle dynamic characteristic research in the technical scheme, the dynamic characteristic research requirement of the motorized spindle under the actual complex working condition can be met.

The utility model relates to the technical field of well drilling coring, and discloses an elastic self-driven pressure maintaining coring tool which comprises a shell, a coring drill bit is fixedly arranged at the front end of the shell, an inner barrel and a coring assembly are sequentially and coaxially arranged in the shell, the rear end of the inner barrel is closed and fixedly connected with the shell, and a pressure maintaining device is arranged at the front end of the inner barrel. The coring assembly comprises a main spring, a positioning cylinder, a coring cylinder, a footage rod and a locking device, the main spring is used for providing pulling force towards the rear end of the inner cylinder for the positioning cylinder, one end of the coring cylinder is rotatably connected with the front end of the positioning cylinder, and the locking device is used for limiting the positioning cylinder to move towards the rear end of the inner cylinder; the footage rod penetrates through the front end of the positioning cylinder and is in sliding connection with the positioning cylinder, the footage rod is matched with the locking device, and when the footage rod slides towards the rear end of the positioning cylinder, limiting of the locking device to the position between the positioning cylinder and the inner cylinder can be relieved; according to the tool, the coring barrel can automatically return to the inner barrel when the footage is in place, and pressure-maintaining and fidelity coring of a deep rock stratum can be achieved.

The invention relates to the technical field of ship mooring, and discloses a mooring device for a ship, the mooring device for the ship comprises a base and a winch assembly arranged on one side of the base, synchronous movement is achieved through a dynamic rope adjusting structure, the diameter is automatically adjusted through a horn-shaped guide part according to the thickness of a mooring rope, and when the ship is affected by stormy waves, the mooring rope is automatically adjusted. The diameter of the arc plate can be automatically adjusted according to the tensile force of the cable, unwinding buffering and rolling of the balls are achieved, cable abrasion is effectively reduced, the damage risk of stormy waves to the cable is reduced, the service life and safety of the cable under complex working conditions are guaranteed, in addition, bidirectional self-adaptive steering can be conducted along with ship swinging, excessive deflection is limited while ship swinging is allowed, and the service life of the cable is prolonged. It is ensured that the mooring rope is evenly and stably stressed, and the safety, reliability and operation efficiency of ship mooring are greatly improved.

The invention relates to the technical field of optical cable traction equipment, in particular to optical cable laying traction equipment. The device comprises a traction machine, a plurality of pipelines and a plurality of supporting units, a plurality of optical cable bodies can be laid at the same time, and the optical cable bodies and the steel cables are separated by arranging the supporting discs and the supporting rings, so that the problem of abrasion caused by mutual friction between the optical cable bodies and the steel cables and between the optical cable bodies and pipelines in the traction process is solved. Besides, as the optical cable bodies and the steel cable are clamped by the supporting disc and the supporting ring, the pulling force of the traction machine is equally distributed to the multiple optical cable bodies in the laying process, compared with the prior art, the traction force borne by the optical cable bodies is smaller, in addition, the structure can only pull the steel cable, and the operation is convenient. The optical cable body is only clamped by the supporting disc and the supporting ring and is not subjected to extra traction force of a traction machine, the problem that the optical cable body is damaged due to too large traction force is solved, the integrity of laid cables is guaranteed, and the laying effect is guaranteed.

The invention belongs to the technical field of cable installation, and particularly relates to a cable installation suspension device which comprises an installation plate, an installation mechanism is fixed to the rear side of the installation plate, a telescopic adjusting mechanism is fixed to the front side of the installation plate, a transverse plate is fixed to the lower end of the telescopic adjusting mechanism, and evenly-distributed insertion grooves are formed in the lower side of the transverse plate. The device comprises a fixing rod, a U-shaped block, a first guide wheel, an insertion plate and a second guide wheel, the left end and the right end of the fixing rod are provided with an insertion groove, a limiting plate is inserted into the insertion groove, cavities are formed in the upper ends of the left side and the right side of the limiting plate correspondingly, and limiting mechanisms are arranged in the cavities correspondingly. A limiting rod, a limiting block, a first spring, a fixing rod, a U-shaped block, a first guide wheel, an insertion plate and a second guide wheel are fixed to the front side of the limiting plate in a matched mode; in the using process, when the cable is subjected to pulling force, external force is buffered through the first spring, so that the buffering effect of the cable is improved, the cable is prevented from being damaged due to pulling, and the service life of the cable is prolonged.

The utility model relates to the technical field of workpiece clamping, and provides a clamping system and a machine tool, and the clamping system comprises a main shell, a rotating main body, a driving motor, a first bearing and a second bearing. Wherein an accommodating space is formed in the main shell; the rotating main body is rotationally arranged in the accommodating space along the axial direction of the rotating main body; the driving motor is connected with the rotating main body; the first bearing and the second bearing are both arranged on the rotating body in a sleeving mode. According to the clamping system, the first bearing and the second bearing are arranged between the rotating body and the main shell to support the main shell in a matched mode, so that the main shell and the rotating body can be connected into a whole and can rotate, it is guaranteed that all structural components do not affect each other when the system works, the structure of the clamping system is simplified, and the working efficiency is improved. The dependence on the technical level of installation personnel is reduced, and the maintenance difficulty is reduced; and the first bearing and the second bearing are arranged between the rotating main body and the main shell, so that the bearings can be prevented from being damaged under the action of pulling force.

The invention discloses a quality detection device for a steel structure frame, and belongs to the technical field of quality detection, the quality detection device comprises a tension testing machine, and also comprises a support plate arranged on the tension testing machine; the feeding mechanism is arranged above the supporting plate and is used for feeding the sample; the moving mechanism is connected with the supporting plate, and a locking mechanism is connected to the moving mechanism; the moving mechanism is used for driving the locking mechanism and the sample to horizontally move, and the locking mechanism is used for clamping or loosening the sample under the moving cooperation of the moving mechanism; according to the scheme, only the sample needs to be placed in the feeding mechanism, the sample is automatically clamped and fixed and is subsequently released and unloaded in the process of driving the locking mechanism to move through the moving mechanism, the automation degree is high, manual active operation is not needed, the operation difficulty is reduced, a large amount of labor force and time are saved, and the working efficiency is improved. The detection efficiency is obviously improved, the subsequent detection work is facilitated, and the practicability is relatively high.

This invention provides a testing device and method for corrosion and wear testing of sliding guide rails under corrosive environments. The device includes a support module, a drive module, a guide rail, a test slider, a tension sensor, a pull rod, and a test tank module. The test slider is slidably mounted on the guide rail and contains a counterweight to simulate a load. The drive module drives the pull rod to slide along the length of the guide rail. The tension sensor is connected between the pull rod and the test slider. The test tank module holds the test solution to simulate a corrosive environment. This invention features a compact overall structure, simple component installation, and a simple slider force transmission method. It can realistically simulate the corrosion and wear phenomena of the sliding guide rail moving pair under seawater conditions. Furthermore, the adjustable counterweight and replaceable test solution enable this invention to conduct corrosion and wear tests on moving pairs under different load conditions and corrosive environments.