2106 results about "Strength testing" patented technology

The invention relates to the technical field of strength detection, and discloses radiator strength detection equipment and a detection method. The method comprises the following steps: carrying out adaptive wavelet denoising and structural association mapping on collected multi-scale structural feature data and multi-environment coupling material feature data of a radiator to be detected, and carrying out multi-dimensional feature extraction, space-time alignment and interactive mapping on an obtained fusion data set to obtain a multi-physical field coupling data matrix; carrying out physical field control equation set separation iteration solution and heat dissipation cyclic load and environmental action calculation on the coupling data matrix to obtain a damage evolution state; and performing multi-dimensional damage sensitive area identification based on the damage evolution state, generating a risk distribution map, performing failure comparison and life calculation based on historical failure data of the same type of radiators, and generating an intensity comprehensive detection result. Through multi-physical field coupling analysis and multi-dimensional damage evaluation, accurate detection of the strength state of the radiator is realized, and the accuracy of structural reliability evaluation is improved.

The invention provides a solid waste filling material ratio optimization method of a magnesium slag-steel slag composite cementing material, and relates to the technical field of solid waste filling. The method comprises the following steps: mixing magnesium slag, steel slag, desulfurized gypsum and mineral slag to prepare a cementing material, and carrying out pretreatment and physicochemical property analysis on raw materials by taking tailings and waste rocks as filling aggregates; then designing a cementing material proportioning scheme and carrying out strength test to obtain an optimal ratio of the cementing material; then considering different slurry concentrations and plastic-to-bone ratios, and carrying out an all-solid waste filling slurry rheological test and an all-solid waste cementitious body strength test; and finally, according to the two test results, establishing a multi-objective optimization model taking the on-way resistance and the filling material cost as optimization objectives and taking the strengths of cementitious bodies at different ages as constraint conditions, and determining optimal parameters of the full-solid waste filling material. According to the invention, resource utilization of the metallurgical solid waste and the mine solid waste is realized, the bottlenecks of high carbon emission and high cost of a cement-based filling material are broken through, and a solution is provided for co-processing of the mine solid waste.

The invention discloses a multi-linkage combined load synchronous application strength testing device. The technical problems that in the prior art, the load applying mode is single, and the combined load cannot be synchronously applied are solved. The device comprises a connecting mechanism and a load applying mechanism, wherein the load applying mechanism comprises a torsional load applying structure, a load transmitting structure and a multi-linkage testing structure. The load transmission structure comprises a special-shaped stress plate and a torsional load transmission assembly, and the torsional load transmission assembly comprises a connecting chuck and a torque plug-in. By controlling the rotation of the torsion load transmission assembly, a pure torsion load applying mode or a conversion mode of converting torsion motion into radial load can be selectively realized, and multi-directional load detection is realized. The invention further provides a combined load synchronous applying function, the single driving source synchronously activates the torsion load path and the radial load path by adjusting the geometric positions of the torque plug-in and the load adjusting plate on the connecting chuck, and synchronous applying of the torsion load and the radial load is achieved.

The invention relates to the technical field of pipe bracket testing, in particular to a thermal insulation pipe bracket overall strength displacement overload testing device and method.The thermal insulation pipe bracket overall strength displacement overload testing device comprises a bearing base and further comprises a pipe bracket base arranged on the upper side of the bearing base, a connecting pipe bracket is installed at the upper end of the pipe bracket base, a clamping plate is clamped to the upper side of the bearing base, and a rotating shaft is arranged on the clamping plate in a penetrating mode; the bottom end of the rotating shaft is clamped and connected with a connecting gear, and an annular groove is formed in the edge of the upper side of the bearing base. According to the invention, the axial and radial strength of the pipe bracket can be tested in the displacement overload test process, the use limitation is low, the automation degree is high, the test efficiency of the heat insulation pipe bracket is obviously improved, the situation that the pipe bracket is broken to injure people due to broken objects in the displacement overload test process of the pipe bracket can be avoided, and the test efficiency is improved. The displacement overload test structure has a good safety protection function, is high in use safety, and also realizes a step-by-step disassembly function of the displacement overload test structure, so that barrier-free maintenance of the test structure is facilitated.

The invention provides an ultrasonic rebound comprehensive detection method and system for bridge pier column concrete strength, and relates to the technical field of structure nondestructive testing, and the method comprises the following steps: obtaining ultrasonic propagation velocity data of a to-be-detected part of a bridge pier column; obtaining springback value data of a to-be-detected part of the bridge pier column; performing coupling processing on the ultrasonic propagation speed data and the rebound value data, and determining the concrete strength of the to-be-detected part by combining the pouring bedding direction of the bridge pier column concrete and the strength increasing coefficient corresponding to the curing age. And the accuracy and the stability of bridge pier column concrete strength detection are obviously improved.

The invention discloses a cable tensile strength testing device and a testing process thereof, and relates to the technical field of cable tensile detection.The cable tensile strength testing device comprises a main body and a hydraulic cylinder fixed to the top of the main body, a stress sensor module is fixed to the output end of the hydraulic cylinder, and the top of the main body is slidably connected with an adjusting plate and a stretching frame; the adjusting plate is fixed to one end of the stress sensor module, a rotating shaft is movably connected to the interior of the stretching frame, and gears are fixed to the two sides of the exterior of the rotating shaft. According to the cable tensile strength detection device, the hydraulic cylinder stretches out to drive the two sets of fastening plates to clamp and fasten a cable firstly, then when the clamping force of the two sets of fastening plates to the cable reaches a set value, the hydraulic cylinder continues to stretch out to drive the stretching frame to move through the adjusting plate, and therefore the tensile strength of the cable can be detected; the cable does not need to be manually clamped and fixed, so that the problem that the precision is influenced by loosening of the cable due to insufficient cable clamping force caused by manual clamping of the cable is effectively avoided.

The invention discloses a method for testing the connection strength of a bolt fastener, and relates to the technical field of fastening mechanical analysis. The bolt fastener connection strength testing method comprises the following steps: acquiring bolt data through a built-in sensor in an electric wrench, analyzing, classifying and transmitting the bolt data to a relay station to obtain corresponding response bolt data, then sequencing the response bolt data according to priorities, and uploading the response bolt data to a cloud platform according to network conditions; prompting operation is carried out through the cloud platform and is fed back to the relay station; the effect of improving the accuracy of the connection strength test of the bolt fastener is achieved, and the problem that the accuracy of the connection strength test of the bolt fastener is low due to discontinuous signals in the prior art is solved.

A hydraulic mechanical component strength testing apparatus and a testing method, relating to the technical field of mechanical component strength testing, for use in performing strength testing on mechanical components with different temperatures. The testing apparatus comprises a frame and a clamping assembly; the clamping assembly comprises two clamping plates and a clamping drive mechanism; a vertically-arranged hydraulic rod is arranged at the top of the frame; a placement platform fixedly connected to the bottom of the frame is arranged below the hydraulic rod; the two clamping plates are located above the placement platform; a placement seat for supporting a mechanical component is arranged between the two clamping plates; a hydraulic sensor for measuring the pressure borne by the placement seat is arranged between the placement seat and the placement platform; the placement platform is further provided with a display in signal connection with the hydraulic sensor; and the clamping plates are each provided with a heating assembly used for heating the mechanical component. The present invention can perform strength testing on mechanical components with different temperatures.

The application relates to the field of concrete testing, in particular to a concrete seamless floor strength testing device and an operating method thereof. The concrete seamless floor strength testing device comprises a mounting frame, a moving driving part one, a connecting table one and a dynamic rebound apparatus; the upper end of the mounting frame is provided with the moving driving part one; the driving end of the moving driving part one is provided with the connecting table one, and the moving driving part one controls the up-down movement of the connecting table one; three dynamic rebound apparatuses are arranged on the connecting table one; the device further comprises a moving driving part two, a connecting table two and a cylinder; the connecting table one is provided with the moving driving part two; the driving end of the moving driving part two is provided with the connecting table two; three cylinders are arranged on the connecting table two; three groups of concrete seamless floor strength data are collected by the three dynamic rebound apparatuses for parallel comparison, so that the error is reduced, and the test area of the dynamic rebound apparatus is protected by the cylinder.

The invention relates to the technical field of pipe strength detection, and particularly provides a PEXA pipe strength detection table which comprises a base, a constant temperature box, a water injection detection mechanism, a supporting plate and an adjusting simulation mechanism. The end, connected with the moving plate, of the pipe is adjusted through cooperation of the rotary locking part, the telescopic part and the plugging locking part, the bending angle of the pipe is adjusted, the bending angle of the pipe is simulated through cooperation with the water injection detection mechanism, and different bending angles are adjusted. Therefore, the hydrostatic strength detection of the pipe in the bending state and the hydrostatic strength detection of the pipe in different bending states are realized, the hydrostatic strength of the pipe is comprehensively evaluated, the strength detection of the pipe is more comprehensive, accurate and reliable, and the problem that the detection is qualified in the linear state but fails in actual bending use is avoided.

The invention relates to the technical field of wood strength detection, in particular to a strength testing device for a wood composite board and a detection method.The strength testing device comprises a base table and a driving base fixed to the base table, and is characterized by further comprising symmetrical supporting mechanisms; a driving mechanism is arranged in the driving base so as to drive the two sets of supporting frames to be close to or away from each other. A centering roller and first pressure sensor cooperation mechanism of the transverse centering mechanism is adopted, a roller driving mechanism is combined to drive a driving roller to rotate, a plate is driven to transversely move through friction force, two sets of first pressure sensors detect the pressure bearing value of the roller in real time, and rotation is stopped when the numerical values on the two sides are equal; the transverse center of the plate is aligned with the axis of the driving roller, and personal errors are eliminated.

The invention relates to the technical field of material physical property testing, and discloses an injectable hydrogel wound dressing tensile strength testing method, which comprises: establishing a correlation model of the mass and the maximum fracture load of a standard sample at different temperatures, and the correlation model of the initial rigidity and the temperature; measuring the mass and the actual maximum fracture load of the to-be-measured sample, and determining the actual initial rigidity of the to-be-measured sample; according to the method, the actual initial stiffness is calculated, the equivalent temperature of the test is converted by utilizing the actual initial stiffness, the standard theoretical maximum fracture load is calculated in combination with the sample mass and the corresponding model, and the performance is judged by comparing the two, so that the measurement of the geometric dimension of an irregular sample is avoided by constructing the correlation between the mass and the mechanical performance; the quality control problem of an in-situ forming material is solved, and the reliability of a judgment result in an industrial environment is further ensured by utilizing mechanical response data of the same test through an integrated temperature self-adaptive calibration mechanism.

The present invention relates to the technical field of testing equipment, and specifically discloses a prestressed steel strand performance testing device, comprising a machine body and an adjustable test bench mounted on the top of the machine body via an inclination adjustment unit. The top of the adjustable test bench is also provided with a continuous impact unit, a guide unit, and two left-right symmetrical multi-stage clamping units, wherein the multi-stage clamping units include a primary bending clamping assembly, a bending control assembly, and a secondary circumferential clamping assembly. The present invention can perform tensile strength testing and fatigue strength performance testing on the steel strand in a horizontal state, and can also perform tensile strength testing and fatigue strength performance testing on the steel strand in an inclined state; the present invention performs multi-stage clamping and fixing of the steel strand by cooperating with the primary bending clamping assembly and the secondary circumferential clamping assembly, thereby achieving multi-point and multi-directional clamping, ensuring that the steel strand is subjected to uniform clamping force in multiple directions, and preventing the steel strand from sliding during the tensile strength test.

The invention provides a method for testing the strength of powder for spraying based on ultrasonic pulverization, which comprises the following steps: selecting spraying powder to be tested, and uniformly mixing with water to obtain a test raw material; performing ultrasonic cell crushing on the test raw material to obtain a crushed sample; and testing the particle size distribution of the crushed sample, calculating the powder crushing degree according to the particle size distribution, and evaluating the powder strength according to the powder crushing degree. According to the powder strength testing method provided by the invention, the process condition is closer to the actual working condition of a dynamic impact environment in the powder spraying process, the overall strength state of the powder is accurately evaluated, the operation is simpler and more convenient, the testing efficiency is high, the strength evaluation is accurate, and the method has great engineering application value.

The utility model provides a cable tensile strength testing device, and relates to the technical field of deep shale gas horizontal well fracturing. The first clamping and fixing mechanism is used for clamping and fixing a ferrule structure of the tested cable, and the ferrule structure is formed by bending one end of the cable into an arc-shaped closed loop; the rope sleeving column is transversely connected to the base in a sliding mode, and the loop structure can be connected to the rope sleeving column in a sleeving mode; the tension detection mechanism comprises a tension detector, one end of the tension detector is connected with the rope sleeving column, and the other end of the tension detector is connected with the base; the winding mechanism comprises a winding roller and a driving motor which are in transmission connection, the winding roller is installed on the base, and a containing groove is formed in the side wall of the winding roller; and the second clamping mechanism is arranged in the accommodating groove and is used for clamping and fixing the other end of the cable. And through the arrangement of the winding roller, the cable can be pulled, and the device can adapt to cables with different lengths.

The invention belongs to the technical field of electrics, and particularly relates to a cable tensile strength testing device which comprises a testing platform; the cable testing device comprises a testing platform, two groups of inner side clamping mechanisms are symmetrically distributed above the testing platform and used for clamping and fixing a cable from the inner side of the cable, each inner side clamping mechanism comprises a supporting disc, the center position of each supporting disc is rotatably connected with a first lead screw, and each first lead screw is in threaded connection with a movable sleeve. The detection reliability is improved through internal and external cooperative clamping, the inner side clamping mechanism drives multiple sets of clamping plates to synchronously contract centripetally through a first lead screw, the outer side clamping mechanism adjusts the clamping force through the magnetic field intensity by means of the rheological characteristic of magnetorheological fluid, the outer side clamping mechanism flexibly wraps the outer wall of a cable, the clamping force is guaranteed, skin damage is avoided, and the detection efficiency is improved. The stress of the cable in the stretching process is more uniform, and the detection data is closer to the real tensile strength.

The invention provides a method and a system for testing the bonding strength of a laser cladding layer. According to the method, mechanical change data and energy release data at the crack tip are collected through a laser measurement device and a sound signal detection device, and a map is generated after alignment according to time. A laser distance measuring device is arranged to adjust the measuring frequency, and the multi-angle image shooting and three-dimensional scanning technologies are combined to record the three-dimensional path and the three-dimensional shape change. And calculating a minimum energy value based on the atlas and the three-dimensional path, inputting the minimum energy value and the position information into an intelligent decision model, and outputting a loading direction adjustment angle and a pressure change amplitude. And then the moving path of the bending test head is corrected, the output force of the hydraulic device is regulated and controlled, and the reliability reduction index is calculated in combination with three-dimensional data. According to the invention, accurate evaluation of the reliability of the laser cladding layer material and efficient control of crack propagation are realized.

The invention discloses a textile tensile strength testing device based on artificial intelligence, the textile tensile strength testing device comprises a workbench, hydraulic rods and force measuring sensors, the hydraulic rods are symmetrically fixed on the workbench left and right, and the force measuring sensors are fixed at the output ends of the hydraulic rods. According to the textile tensile strength testing device based on artificial intelligence, the clamping and limiting mechanism is adopted, a textile can be clamped and fixed, so that the stability of the textile is guaranteed, the textile can be straightened in the clamping and fixing process of a placed object in cooperation with the linkage tensioning mechanism, the smoothness of the two ends of the textile is guaranteed, and the tensile strength of the textile is improved. In the detection process, the middle position of the textile fabric can be smoothed in cooperation with a linked smoothing mechanism, so that the flatness of the textile fabric is effectively guaranteed, the accuracy of detection data is further guaranteed, and in cooperation with a protection mechanism, limiting can be achieved when the textile fabric is broken, and the situation that workers are hurt due to the fact that the textile fabric is broken and popped up is avoided; therefore, the use safety of the device is ensured.

The present invention discloses a fully automatic free-body hydrostatic strength detection device for fire extinguisher cylinders, which includes a frame, a low-pressure water pump, a high-pressure water pump, an inlet ball valve, a check valve, an exhaust ball valve, an inlet air valve, a pressure sensor, a warning light, a drain ball valve, a positioning tooling, a free-body clamping device, an air delivery pipe, a water tank, an oil tank, a vane pump, a control box and an operation panel. Workbenches and a box body shell are respectively arranged on the left and right sides of the frame. An operation panel is arranged on one side of the box body shell, and a control box is arranged beside the operation panel. An exhaust ball valve and an inlet air valve are arranged beside one side of the control box, and a pressure sensor is arranged between the exhaust ball valve and the inlet air valve. An inlet ball valve and a drain ball valve are respectively arranged beside both sides of the exhaust ball valve and the inlet air valve. The operation of the present invention is convenient, suitable for mass production on a production line, with a high degree of automation, no need to detect one by one, improving work efficiency, greatly reducing the labor intensity of operators, and improving the detection quality, and having relatively high safety.

The invention relates to the technical field of heat exchanger pipeline strength testing, and particularly provides a shell-and-tube heat exchanger pipeline strength testing device which comprises a base, a fixed feeding mechanism, a water pressure conveying connecting mechanism and a width adjusting mechanism. The fixed feeding mechanism is used for carrying out bearing, conveying and feeding and end fixing on the U-shaped pipe, so that the two ends of the U-shaped pipe horizontally move to be aligned and connected with a joint pipe in the water pressure conveying and connecting mechanism, and the connecting accuracy of the U-shaped pipe and the joint pipe is improved; then the joint between the U-shaped pipe and the joint pipe is wrapped and sealed through the sealing pressing set, the sealing effect of the joint between the U-shaped pipe and the joint pipe is improved, leakage of the joint between the U-shaped pipe and the joint pipe is avoided, axial limiting of the arc-shaped clamping plate is achieved, and the sealing effect of the joint between the U-shaped pipe and the joint pipe is greatly improved when the water pressure strength is tested. And the sealing effect and the connection stability of the U-shaped pipe and the joint pipe are improved.

The present invention discloses a high-strength and high-conductivity alloy material tensile testing device, and relates to the technical field of material tensile testing equipment. The present invention includes a gantry with columns and upper and lower beams, a load sensor, a hydraulic cylinder, and a control host. The hydraulic cylinder is installed at the upper beam of the gantry and the load sensor is installed at the extended end of the hydraulic cylinder. A clamp for clamping a high-voltage line sample is installed at the lower beam of the gantry and on the load sensor. The loading rack is arranged so that it reciprocates in the middle of the gantry under the action of a first electric push rod, so that the clamp can clamp the high-voltage line sample material when the first electric push rod is extended, and then perform tensile testing. When the first electric push rod is shortened, it is convenient to batch clamp the next batch of high-voltage line sample materials, thereby solving the problem that the tensile strength testing machine of the prior art does not have the function of batch testing tensile materials.

The invention discloses a textile fabric tensile strength detection device, and belongs to the field of textile fabric detection.The textile fabric tensile strength detection device comprises a fixed base, a connecting plate is fixedly mounted on the fixed base, a clamping structure is mounted on the side wall of the connecting plate, and a fixed frame is slidably connected to the side wall of the connecting plate; a detection clamping plate is mounted on the fixed frame through an adjusting structure, and a force sensor is fixedly mounted on the detection clamping plate; and the smoothing structure comprises a moving plate which is connected to the inner wall of the fixed frame in a sliding mode, the side wall of the moving plate is fixedly connected with a sliding block, and the inner wall of the fixed frame is provided with a sliding groove corresponding to the sliding block. According to the cloth flattening device, cloth is flattened before detection, the cloth is kept flat, wrinkles on the cloth are avoided, therefore, during detection, detection data are more accurate, detection errors are reduced, meanwhile, the flattening roller is rotated in the moving process, and the flattening effect of the flattening roller is improved.

The invention provides a universal assembling and testing method for a bipropellant attitude and orbit control liquid rocket engine. The assembling and testing method provided by the invention comprises 27 process steps, the method specifically comprises the steps of part collection, laser marking, cleaning, assembly assembling, strength testing, engine outer leakage rate detection, electrical performance detection, control valve inner leakage rate detection, mechanical testing, liquid flow testing, pore plate debugging, alcohol replacement, nitrogen purging, vacuum drying, purging, dew point testing, metering, assembling before warehousing, multimedia recording, engine final inspection and warehousing. Wherein the leakage rate detection and the electrical performance test are carried out for multiple times according to specific installation and test requirements. The attitude and orbit control engine assembling and testing method has the advantages that the assembling and testing effect of the attitude and orbit control engine is tested from multiple dimensions, generalization and standardization are achieved, and reliable work of the attitude and orbit control engine can be guaranteed.

The invention belongs to the technical field of concrete testing, and particularly provides mechanical property testing equipment and a detection method for recycled aggregate concrete. The mechanical property testing equipment for the recycled aggregate concrete comprises a machine body, a reversing unit, a pressure testing unit and two tension testing units, the pressure testing unit is arranged in the vertical direction, and the two tension testing units are arranged in the horizontal direction and do not interfere with each other in spatial position. The reversing unit can clamp a test piece and drive the test piece to move between the vertical direction and the horizontal direction, the placement state of the recycled aggregate concrete test piece is switched and changed in real time, and the flexibility of the equipment during mechanical property testing is improved; the recycled aggregate concrete test piece can meet the requirements of two different test items of compressive strength test and tensile strength test.

The invention discloses a liquid crystal curved screen strength testing device, and relates to the technical field of liquid crystal curved screen detection, the liquid crystal curved screen strength testing device comprises a detection table and a detection clamp, the detection clamp comprises two groups of symmetrically arranged sliding positioning tools, the detection clamp further comprises a butt clamping mechanism and a top pressing mechanism, and the butt clamping mechanism comprises a top pushing plate and a driving mechanism used for transversely moving the top pushing plate; and the jacking and pressing mechanism comprises a jacking and pressing ball and a linkage sliding mechanism for driving the jacking and pressing ball to transversely move. The driving mechanism drives the two pushing and ejecting plates to oppositely clamp towards the middle, extrusion from the edges of the two sides of the curved screen is achieved, transverse bending strength detection is achieved, and when the driving mechanism drives the two pushing and ejecting plates to reset, the pushing and ejecting plates act on the distributed one-way baffles through the arranged linkage plates in an extrusion mode. The corresponding supporting sliding plates are driven by the one-way baffles to slide, so that the top pressing balls complete bending strength detection in the vertical direction, bending strength detection in different directions can be rapidly completed, and the detection efficiency and the operation convenience are improved.

The invention discloses a material tensile strength testing device suitable for a high-humidity and high-salt environment, the material tensile strength testing device comprises a box body, two connecting plates are fixedly connected to the rear side, close to the top, of an inner cavity of the box body, the two connecting plates are arranged in a bilateral symmetry mode, and two concentric-square-shaped frames are jointly and fixedly connected between the two connecting plates; through mutual cooperation of a driving gear, a concave mounting plate, an A-shaped mounting plate, a driving motor, a cleaning gear, an inner gear ring and the like, the outer surface of a reinforcing steel bar can be pretreated, and the situation that a test result is affected by corrosion of the surface of the reinforcing steel bar is prevented; through mutual cooperation of a component moving motor, a connecting plate, a double-thread lead screw, a moving block, a salt spray test box, a linkage rod, absorption cotton and other components, when a steel bar is tested in a continuous salt spray environment, salt spray liquid drops are attached to the outer surface of the steel bar, so that the surface of a sample is condensed; a local electrolyte membrane can be prevented from being formed on the surface of the steel bar to accelerate pitting corrosion or galvanic corrosion.

The invention discloses a tensile detection device for a high-strength and high-conductivity alloy material, and relates to the technical field of material tensile detection equipment. The device comprises a door frame with stand columns, an upper cross beam and a lower cross beam, a load sensor, a hydraulic cylinder and a control host, the hydraulic cylinder is installed on the upper cross beam of the door frame, the load sensor is installed at the extension end of the hydraulic cylinder, and clamps used for clamping high-voltage wire samples are installed on the lower cross beam of the door frame and the load sensor. By arranging the material carrying frame to reciprocate in the middle of the portal frame under the action of the first electric push rod, the clamp can clamp high-voltage wire sample materials when the first electric push rod extends, then stretching detection is carried out, batch clamping of the high-voltage wire sample materials of the next batch can be conveniently carried out when the first electric push rod is shortened, and the working efficiency is improved. Therefore, the problem that a tensile strength testing machine in the prior art cannot detect tensile materials in batches is solved.

The invention relates to a rock tensile strength testing device and method. The rock tensile strength testing device comprises a bottom plate and guide columns which are mounted on the bottom plate and are symmetrically arranged, and a top plate is arranged at the ends of the guide columns; the distance adjusting and controlling assemblies are arranged on the bottom plate and the top plate correspondingly and connected with the guide columns, and lifting plates which are symmetrically arranged are connected to the distance adjusting and controlling assemblies; the supporting mechanism is arranged on the lifting plate, an arc-shaped plate is connected to the supporting mechanism, a clamping and releasing mechanism is arranged on the supporting mechanism, and clamping plates which are symmetrically arranged are connected to the clamping and releasing mechanism; the gradual change pressure applying mechanism is arranged on the lifting plate and connected with the supporting mechanism, the gradual change pressure applying assembly can drive the arc-shaped plate and the clamping and releasing mechanism to move through the supporting mechanism so as to control the clamping plate to execute the clamping or releasing action, and the tensile strength of the rock can be measured in a bidirectional pressure applying mode.

The invention discloses cement strength detection equipment for railway engineering detection based on an intelligent sensor, and relates to the technical field of cement strength detection. The cement strength detection equipment for railway engineering detection based on the intelligent sensor comprises a base, the top of the base is fixedly connected with a table board, and the top of the table board is fixedly connected with an electric hydraulic cylinder; an L-shaped rotating block; the bottom of the electric hydraulic cylinder is rotationally connected with an L-shaped rotating block through a first rotating shaft, a first fixing block is fixedly connected to the right face of the front side of the L-shaped rotating block, the bottom of the first fixing block is movably connected with a first hydraulic block through a first pushing block, and the top of the first hydraulic block is fixedly connected with the side face of the electric hydraulic cylinder through a second fixing block. The first hydraulic block is fixedly connected with a second hydraulic block through a first hose, and the top of the second hydraulic block is movably connected with a lifting block through a second push block. According to the cement strength detection equipment for railway engineering detection based on the intelligent sensor, when the equipment is used, the L-shaped rotating block is rotated to drive the lifting block to ascend, so that manual operation is reduced when a detection mode is changed.

The invention relates to the technical field of cable testing equipment, and discloses a cable protection tube axial tensile strength testing device and a testing method.The cable protection tube axial tensile strength testing device comprises a mounting base, the top of the mounting base is fixedly connected with a rack, the inner side of the rack is provided with a movable cross beam, the movable cross beam can move on the inner side of the rack, and the movable cross beam can move on the inner side of the rack. Mounting and fixing mechanisms are arranged on one side of the mounting base and one side of the movable cross beam, a flexible clamping mechanism is arranged on one side of each mounting and fixing mechanism, the mounting and fixing mechanisms facilitate replacement of the flexible clamping mechanisms, and the flexible clamping mechanisms are used for flexibly clamping a cable protection pipe. Air pressure is provided through the air pressure supply mechanism, flexible clamping is achieved through the flexible clamping mechanism, the clamping end is prevented from being damaged, clamping stability can be improved through the air pressure supply mechanism by means of internal and external extrusion air bags, slippage of a cable protection tube sample is avoided, meanwhile, the end of a cable protection tube is protected against damage, and therefore an accurate numerical value can be tested; the test precision is improved.