148 results about "Shear testing" patented technology

The invention relates to the field of material testing, and particularly discloses a shear box for simulating lunar soil ring shear testing and a testing device.The shear box comprises a lower box body, an upper box body, an axial loading assembly, a vacuum air channel and a shear seam adjusting mechanism; the testing device comprises a ring shear apparatus and a shear box, the ring shear apparatus comprises a torsional shear measurement and control module, an axial loading measurement and control module and a sensing module, and the sensing module comprises a temperature sensing assembly, an acoustic emission sensor and the like. According to the invention, multi-field coupled lunar soil environment simulation including vacuum, temperature, mechanical loading and the like can be provided, and multi-field collaborative analysis and cross-scale research of lunar soil mechanical behaviors are realized.

The invention discloses an on-line monitoring and fault early warning system for the running state of a dynamic compression-shear testing machine, belongs to the technical field of fault diagnosis, and aims to solve the problems of poor adaptability to multiple motion modes, lagging fault early warning and fuzzy fault positioning in the prior art. According to the system, core collaborative link fault sensitive point monitoring parameters are matched according to a current motion mode, a dynamic threshold value is generated to construct a fault judgment threshold value system, real-time data subjected to cyclic division are collected and loaded to generate a time sequence data set, a reference candidate range state is judged based on the threshold value, and a fault judgment reference library is constructed; and executing deviation analysis prediction trend through the reference library, generating a compensation instruction, identifying potential faults in combination with a threshold value, an actual value and a prediction value, calculating a link fault probability, and completing diagnosis. According to the invention, monitoring adaptability and accuracy can be improved, compensation in advance and accurate fault early warning are realized, and stable operation and test accuracy of equipment are guaranteed.

The invention discloses a battery adhesive testing method, system and equipment, and the method comprises the steps: constructing a multi-layer composite test sample containing a to-be-tested adhesive based on the structure position of the to-be-tested adhesive in a battery, and carrying out the tensile test and shear test of the multi-layer composite test sample, obtaining a tensile test force-displacement curve and a shear test force-displacement curve; obtaining a tensile property parameter of the adhesive to be tested according to the tensile test force-displacement curve, and obtaining a shear property parameter of the adhesive to be tested according to the shear test force-displacement curve; constructing a cohesive force model corresponding to the to-be-tested adhesive according to the tensile property parameters and the shear property parameters, and performing failure simulation on the to-be-tested adhesive according to the cohesive force model; the rigidity damage coefficient and the fracture energy of the to-be-tested adhesive are calculated according to the failure simulation, the failure test result of the to-be-tested adhesive is obtained according to the rigidity damage coefficient and the fracture energy, and the failure test accuracy is improved.

The invention discloses a calibration structure and a calibration method for a large-tonnage force value measurement system of a compression-shear tester, a calibration device is arranged in the large-tonnage force value measurement system of the compression-shear tester, the calibration device records parameters in the large-tonnage force value measurement system of the compression-shear tester, and the load borne by the calibration device is calculated according to the recorded parameters. Therefore, the large-tonnage force value measurement system of the compression-shear testing machine is calibrated and metered, and the measurement accuracy of the large-tonnage force value measurement system of the compression-shear testing machine is ensured. And calibration devices with various structures are arranged to cope with different working conditions of the compression-shear testing machine, so that calibration and metering work under various working conditions are realized, and the calibration problem of the compression-shear testing machine under various different conditions is solved.

The utility model provides a single-sided direct shear test device for a soil sample, which relates to the technical field of direct shear test devices and comprises two support frames, a workbench is fixedly mounted between the tops of the two support frames, and two fixing blocks are fixedly mounted at the top of the workbench. According to the utility model, the positions of the two hydraulic cylinders can be adjusted through the operation of the motor, so that the hydraulic cylinders can be vertical to the soil sample, and the hydraulic cylinders operate to apply pressure to the soil sample, so that the automation degree is high, the control is simple and reliable, the complexity and uncertainty of manual operation are greatly reduced, and the accuracy and efficiency of the test are improved; meanwhile, the pressure received by the soil sample can be observed in real time through the pressure gauge, and the value of the pressure applied to the soil sample by the hydraulic cylinder can be directly displayed, so that a tester can grasp the change condition of the pressure in real time and adjust the pressure output of the hydraulic cylinder as required, and the accurate and stable pressure is applied to the soil sample; the device has the advantages of being high in automation degree, uniform and stable in applied pressure and high in adaptability.

The utility model discloses an adhesive shear testing device capable of adjusting shear load coaxiality, which relates to the technical field of shear testing and comprises an upper base material, a lower base material, an upper U-shaped connecting piece and a lower U-shaped connecting piece, positioning holes are formed in the two sides of the upper U-shaped connecting piece and the two sides of the lower U-shaped connecting piece correspondingly, positioning adjusting knobs are connected to the inner walls of the positioning holes through threads, pin holes are formed in the middles of the surfaces of the positioning adjusting knobs, and bearing pins are inserted into the inner walls of the pin holes; the upper bearing pin and the lower bearing pin penetrate through the upper base material and the lower base material respectively and extend to the other sides of the upper U-shaped connecting piece and the lower U-shaped connecting piece. According to the utility model, the shearing force is limited in the same plane of the adhesive surface, the torque of the Y axis is avoided, and the test accuracy is improved.

The invention discloses a calibration method of a shock isolation device compression shear testing machine based on a three-way force sensor, and solves the technical problem of low accuracy of an existing calibration method. A multi-component force measurement system based on a three-direction force sensor is adopted to obtain force value measurement data, the complex stress condition of the compression-shear testing machine of the shock isolation device is converted into a six-dimensional force representation form including three-direction component forces and three-direction moments, the compression-shear testing process of the compression-shear testing machine is simulated, and the three-dimensional force representation form of the compression-shear testing machine is obtained. The eccentric position and the real-time stress of a stress point are determined by executing a two-stage measurement process, in the first stage, a vertical static load is pre-added through a vertical actuator, the collection result and the position coordinate information of each single three-way force sensor are obtained, and the eccentric position of the stress point is calculated and determined, and in the second stage, the real-time stress of each single three-way force sensor is obtained. The horizontal actuator is used for applying shear displacement to carry out a compression-shear test, a real-time acquisition result of the three-way force sensor is obtained, real-time stress is calculated, the compression-shear testing machine of the shock isolation device is calibrated, and the accuracy of force value calibration of the compression-shear testing machine is improved.

The invention discloses a vane shear test method, which comprises the following steps of: drilling at a test point, lowering a central rotating shaft with an outer sleeve and a shoe and a vane head to the bottom of a hole, and pressing the central rotating shaft after the vane head reaches the bottom of the hole, so that the vane head enters a soil body; mounting the vane shear apparatus, connecting the central rotating shaft with the torque sensor, and rotating the locking handle to lock the outer sleeve; power is supplied to the vane shear apparatus, and the vane shear apparatus is started through the operation keyboard; a project name, a drilling number and a test depth are input, a test start button is clicked to start a vane shear test, the rotating speed of a motor is adjusted to be preset through a speed reducer, the vane shear test is performed on undisturbed soil and remolded soil respectively, and the sensitivity of the vane shear test depth is calculated after the test is finished; after the vane shear test is completed, data are exported, and test data are imported into a storage device; the locking handle is unscrewed, and the connection between the central rotating shaft and the torque sensor is removed.

The invention provides a dynamic load-oriented brazed diamond bonding strength testing device and method. The dynamic load-oriented brazed diamond bonding strength testing device comprises a base, a test framework, a self-adaptive sample holding unit, a data acquisition unit and a visual auxiliary alignment unit, the self-adaptive sample holding unit realizes stable clamping and angle adjustment of a sample through a rotatable platform, a translation bottom table, a hydraulic clamping cylinder and an angle adjusting piece; the data acquisition unit acquires a shear force-displacement curve by using a fiber bragg grating sensor, and a high-speed camera records a fracture process; and the vision-assisted alignment unit (high-resolution industrial camera) is used for calibrating the positions of the sample and the pressure head. The method comprises the steps of intelligent pre-characterization clamping, variable load dynamic shear testing, in-situ fracture mode judgment, multi-mode effective fracture area measurement and multi-dimensional strength characterization. According to the invention, the sample positioning and clamping stability is improved, the loading interference is reduced, the interface bonding strength is quantitatively and reliably represented under the dynamic load, and the test accuracy and repeatability are guaranteed.

The utility model discloses a closed-loop servo control system of a dynamic compression-shear testing machine, which belongs to the technical field of electrical control of testing machines and comprises a controller and a servo actuator, and the servo actuator is provided with an electro-hydraulic servo valve, a displacement sensor and a load sensor. The displacement sensor is connected with an input port X7 of the controller through a displacement sensor amplification conditioning circuit; the load sensor is connected with an input port X14 of the controller through a load sensor amplification conditioning circuit; and the electro-hydraulic servo valve is connected with an output port X18 of the controller through a servo valve driving circuit. According to the utility model, the axial controller, the horizontal controller and the corner controller are used for controlling the corresponding loading oil cylinders, and the displacement sensor and the load sensor in the servo actuator are used for carrying out position detection and pressure detection on a controlled unit, so that more accurate position control and force control are obtained; therefore, errors generated in the transmission process between the hydraulic station and the oil cylinder are eliminated, and the working precision of equipment is improved.

The invention discloses a system and a method for testing low-temperature characteristics of magnetorheological fluid, and belongs to the technical field of magnetorheological fluid. The system comprises a shearing device, a low-temperature cooling device, a supporting device, a transmission mechanism and a lifting mechanism, the shearing device and the inner wall of a shearing cylinder form an annular test gap through a shearing column, and a magnet exciting coil cooperates with a magnetic circuit structure to generate a uniform magnetic field; the low-temperature cooling device is arranged in the shearing device, and the transmission mechanism and the lifting mechanism respectively drive the shearing column to rotate and lift. The test method comprises the steps of low-temperature environment establishment, magnetic field loading, shear test and multi-parameter calculation, derivation of a shear yield stress formula based on a Bingham model and an infinitesimal method, calculation of coolant flow increment in combination with a heat production power and heat dissipation power balance model, and guarantee of low temperature constancy. The magnetorheological fluid low-temperature characteristic testing device fills the blank of magnetorheological fluid low-temperature characteristic testing, has the advantages of being high in testing precision, high in environment controllability, compact in structure, easy to maintain and the like, and provides reliable experimental data for application of magnetorheological fluid in a low-temperature scene.

The utility model discloses an in-situ shear test device, which relates to the technical field of in-situ testing, and comprises a movable frame, an arc-shaped clamping plate, a limiting screw rod and a sampling sleeve, the movable frame comprises two connecting lug plates, the two arc-shaped clamping plates are located between the two connecting lug plates, and the inner arc sides of the two arc-shaped clamping plates are oppositely arranged; the two limiting screw rods are in threaded connection with the corresponding connecting lug plates respectively; a clamping groove is formed in the outer wall of the sampling sleeve in the circumferential direction, one end of each limiting screw rod penetrates through the corresponding connecting lug plate and can push the two arc-shaped clamping plates to move relatively, and the inner arc sides of the two arc-shaped clamping plates can abut against the clamping groove; and a cutting knife assembly is arranged on the outer arc side of the arc-shaped clamping plate. The in-situ shear test device disclosed by the utility model can reduce contamination, is convenient to disassemble and clean, and improves the test efficiency.

The present invention belongs to the technical field of bolt shear force testing, and discloses a bolt limiting mechanism, a bolt shear test device and a method. The bolt limiting mechanism includes a support component and a limiting component, and the limiting component includes two limiting members, each support component is rotatably provided with a limiting member, and each limiting member is provided with at least two limiting holes with different apertures, and the two limiting members can overlap each other so that at least one group of limiting holes with the same aperture is aligned to pass the bolt. By rotating the two limiting members, the limiting holes with the same aperture can be aligned, and there is no need to replace the bolt limiting mechanism, which simplifies the operation steps and improves the efficiency of the bolt shear test. The bolt shear test device includes a universal testing machine and a bolt limiting mechanism, and the universal testing machine applies force to the support member to drive the two limiting members to apply shear force to the bolt, thereby improving the efficiency of the bolt shear test. The bolt shear test method adopts a bolt shear device to improve the efficiency of the bolt shear test.

This invention provides a multi-field coupled shear testing device, including a test host, a pressure chamber, a power distribution cabinet, and a water supply device. The test host is supported by a workbench. The confining pressure chamber, together with the vertical, horizontal, and longitudinal loading systems, applies a three-dimensional static load. Within the horizontal loading system, an impact transmission rod connects to a nitrogen high-pressure emission chamber to achieve impact loading. The sealed high-temperature chamber has a vacuum glass window on the outside, and the internal shear box chassis is raised and equipped with water channels. A membrane is used to wrap the specimen to prevent leakage. The vertical loading system has a built-in cooling device, and an acoustic emission probe is installed on the pressure rod to monitor damage in real time. This device achieves multi-field coupling of high temperature, high pressure, seepage, and impact through modular design, offering high loading accuracy and convenient operation. It solves the functional conflicts and monitoring lag problems of traditional equipment and is suitable for multi-field mechanical property testing of geotechnical materials.

A bidirectional constant stiffness constraint rock shear testing device includes; a base 1; a fixed component, including an L-shaped shearing plate 2 and a fixed pressure head 8 connected with each ot

The invention belongs to the technical field of rock-soil and ecological engineering experiments, and particularly relates to a double-sided shear tester for the shear strength of root soil and an experimental method. The sample shearing mechanism is used for placing a sample obtained by in-situ culture of a target soil body; the sample shearing mechanism is arranged in the middle of the main body frame; the sample shearing mechanism comprises a lower fixing ring and an upper fixing ring which are fixed with the main body frame, and a shearing ring which is in horizontal sliding fit with the main body frame, the shearing ring is positioned between the lower fixing ring and the upper fixing ring, the lower fixing ring and the upper fixing ring are coaxially arranged, and when the shearing ring and the lower fixing ring are coaxial, the shearing ring and the upper fixing ring are coaxially arranged. The inner sides of the lower fixing ring, the shearing ring and the upper fixing ring form a cavity for placing a sample; a counter-force unit is arranged in the lower fixing ring, and a pressurizing unit is arranged in the upper fixing ring; one side of the shearing ring is in transmission fit with the movable end of the telescopic mechanism, and a sensor is arranged on the shearing ring; the moving direction of the shearing ring is parallel to the radial direction of the lower fixing ring. The invention further discloses a testing method using the device.

This invention discloses an in-situ self-reaction force testing device and method for transverse shearing of pre-embedded channels. The device includes a reaction beam, two reaction fixed supports, two force transmission rods, a force sensor, a force transmission box, a sleeve, a displacement sensor, a connecting rod, and a force application mechanism. The sleeve is fixed to the shearing test point of the pre-embedded channel. The force transmission box is sleeved outside the sleeve. The force sensor is connected to the force transmission box and the connecting rod. The connecting rod is slidably connected to the reaction beam and fixedly connected to the force application mechanism, and is driven by the force application mechanism to move relative to the reaction beam. The two reaction fixed supports are symmetrically arranged on both sides of the shearing test point and fixedly connected to the pre-embedded channel. The two force transmission rods are symmetrically arranged on both sides of the connecting rod. One end of each force transmission rod is fixedly connected to the reaction beam, and the other end abuts against the pre-embedded channel. The displacement sensor is used to measure the movement distance of the transverse shearing test point. This testing device has a wide range of applications, few components, is easy to assemble and disassemble, is small in size and light in weight, and is easy to carry.

The utility model relates to the technical field of engineering detection equipment, in particular to a fiber reinforced rib anti-shearing clamp for hydraulic engineering detection, which comprises a fiber reinforced rib anti-shearing clamp body for hydraulic engineering detection, the fiber reinforced rib anti-shearing clamp body for hydraulic engineering detection comprises a bottom plate, and a top plate is arranged on the upper side of the bottom plate. And a sleeve column is fixedly mounted on the bottom plate. According to the shearing test fixture, a lower blade is omitted and replaced by two identical upper blades, the upper blades are limiting blades and jointly act with the stabilizing seat arranged on the bottom plate to fix the rod body, and meanwhile, the limiting blades cannot interfere with the shearing acting force of the shearing blade, so that the shearing effect of the shearing blade is greatly improved. And meanwhile, the stabilizing seat, the shearing blade and the limiting blade in the clamp mechanism can be disassembled and assembled, combinations with different inner diameters can be replaced to meet the detection work of rod bodies with different nominal diameters, and the application range is widened.

This invention discloses a method for obtaining the strength of a pillar considering friction factors, comprising: preparing rock samples with different aspect ratios and configuring contact surface materials with different tribological properties; determining the cohesion and friction coefficient of each contact surface material through shear testing, conducting compressive strength tests on rock samples with different contact surface materials to obtain rock sample strength data under different friction levels and aspect ratios; selecting a pillar strength calculation formula corresponding to the actual contact conditions between the pillar and the surrounding rock, calculating the strength of the target pillar under design conditions, and calculating the load on the pillar itself based on the pillar area bearing theory; calculating the pillar safety factor based on the pillar strength and the load, and optimizing the pillar design accordingly.

This invention belongs to the field of testing technology, specifically relating to a dynamic shear test device and method for a flexible connection assembly of an aircraft fuel system. The test device includes a reciprocating assembly, a clamping assembly, and a loading assembly. A second push block in the reciprocating assembly is connected to a first locking block in the clamping assembly. The loading assembly is located on one side of the clamping assembly. The reciprocating assembly applies a shear load to the flexible connection assembly. The clamping assembly is responsible for clamping and fixing the test tube. The loading assembly injects pressure into the test tube. By connecting two test tubes using the flexible connection assembly, and controlling the pressurization module in the loading assembly to pressurize the test tube and the electric cylinder in the reciprocating assembly to apply thrust to the test tube, the internal working pressure and external shear load of the flexible connection assembly are tested. This provides standard equipment and methods for conducting life testing research on flexible connection assemblies, and also provides a reference for the selection of flexible connection assemblies.

The invention provides a portable multifunctional rock mechanics testing machine and method, and relates to the technical field of rock mechanics tests. According to the portable multifunctional rock mechanics testing machine, an expansion test assembly, a uniaxial compression test assembly, a point load test assembly, an indentation test assembly or a compression-shear test assembly are selectively arranged between a telescopic rod of a loading oil cylinder and / or a force transducer. The testing machine disclosed by the invention is simple and light in structure, and can be conveniently carried to an engineering site to carry out a rock mechanical test, so that on-site loading and data acquisition of a rock sample are realized; the tester can accurately control stress and strain conditions and can realize stable and uniform loading and unloading on site so as to obtain a reliable test result; the testing machine integrates multifunctional testing, and different testing assemblies are matched with an expansion test, a uniaxial compression test, a point load test, an indentation test or a compression-shear test, so that multi-parameter testing is realized aiming at different rock sample conditions.

The invention discloses a high-speed ring shear test device and a use method thereof, and belongs to the technical field of high-speed ring shear tests. According to the high-speed ring shear test device provided by the invention, a composite structure system with high-speed rotation driving and controllable axial loading is constructed, so that high-speed dynamic simulation of mechanical behaviors of a soil sample is realized. According to the upper rotation driving system, a first servo motor is matched with a low-friction bearing to drive an upper shearing cover plate, the stability of high-speed rotation around a shaft is guaranteed by reducing mechanical transmission resistance, and therefore the speed limit of a traditional ring shearing device is broken through; the shearing execution cavity and the inner ring of the shearing cavity form a stepped shearing cavity through an annular groove with increasing diameter at the bottom of the upper shearing cover plate, so that effective constraint of a soil sample in the high-speed shearing process is ensured, and the shearing area is maintained to be constant through an annular cavity structure. The lower axial loading system is linked with the lower shearing device through a shearing box supporting disc, so that the axial stress loading condition can be accurately controlled, and the stress states of different depths in the actual landslide can be simulated.

The utility model provides a kind of LNG bubble piece shearing test workpiece's glue removing device, including bottom plate, driving mechanism, cutter and limiting assembly are provided on the bottom plate, the cutter is set in the movement output end of driving mechanism, the driving mechanism is used to drive cutter to reciprocate, the limiting assembly forms the glue removing station of limiting shearing test workpiece movement, shearing test workpiece is placed in the glue removing station, the glue removing station is located directly below the movement path of cutter, the movement path of the cutter tip is the plane parallel to the plane where glue removing station is located;According to the structure characteristics and cleaning requirement of shearing test workpiece are fixed, ensure that there is no deviation, no shaking in cleaning process;By simple electrical control driving cutter reciprocation, the residual bubble piece on shearing test workpiece is cleaned, cleaning speed is fast, effectively guaranteeing fixture rapid turnover reuse;Simple structure, easy to maintain;High degree of automation, effectively save time and labor cost.

The present application relates to a kind of laboratory concrete early strength blade shear test device, comprising: test table, shear test system and data monitoring system;The shear test system is arranged on the test table, to detect the sample on the test table;The data monitoring system is arranged on the shear test system to collect test data;The shear test system and the data monitoring system are connected with the computer control in laboratory.The concrete early strength blade shear test device provided by the present application realizes the automatic control of cross plate penetration, shear, and the real-time continuous intelligent monitoring of shear parameters, avoids the influence of human subjective factors, so the evaluation result is more reliable, ensures the accuracy of test result.

The utility model relates to the field of flying shears, in particular to a resettable metallurgical flying shear testing machine which comprises a torque sensor tool module. The device further comprises a two-stage speed reducer module, a rack module, a conveying module and a shearing module. The rear end of the torque sensor tool module is provided with the two-stage speed reducer module, the rear end of the two-stage speed reducer module is provided with the rack module, the conveying module is arranged in the rack module, and the shearing module is arranged on the right side of the conveying module. According to the utility model, the resettable aluminum alloy section bar is assembled to form the resettable aluminum alloy section bar, so that the whole resettable aluminum alloy section bar is lighter, students can independently construct and disassemble the resettable aluminum alloy section bar, and the resettable aluminum alloy section bar can be matched with an internet of things measurement and control system and corresponding sensors (a force sensor, an encoder, a displacement sensor and a torque sensor) to carry out statics and kinematics experiments; students can know the mechanical knowledge more intuitively, so that the metallurgical flying shear can be subjected to motion analysis and optimization design.

The utility model provides a computer servo tension testing machine which comprises a base, a mounting frame, a transmission part and a detection mechanism, the mounting frame is composed of a stand column and a cross beam, the detection mechanism comprises a bearing seat, a tension detection assembly and a shearing detection assembly, and a rotating lead screw in the transmission part is mounted in the stand column and connected with the bearing seat; the tensile force detection assembly and the shearing detection assembly are located on the two sides of the bearing seat respectively, a fixed clamp and a movable clamp in the tensile force detection assembly are located on the bearing seat and the cross beam respectively, and a movable included angle is made to be close to or away from the fixed clamp by moving the bearing seat so that tensile force detection can be conducted on materials. The two clamping parts are arranged and move in the sliding grooves of the mounting base respectively, and when the clamping parts clamp materials and are matched with the rotating lead screw, the cutting edge part on the bearing base cuts off the materials, so that detection of the shearing performance is achieved, and multiple detections can be completed on the tension testing machine.

The invention discloses a rock-fill particle cyclic shear test system and test method, and relates to the technical field of shear tests, the rock-fill particle cyclic shear test system comprises a test frame, a shear box assembly, a vertical loading device, a horizontal shear device and a data acquisition system. By adopting a rolling shaft structure, friction interference can be reduced, constant vertical stress can be accurately applied by combining the synergistic effect of a high-precision hydraulic pusher and a force transmission plate in the vertical loading device, and the horizontal shearing device can be used for shearing a workpiece through a second hydraulic pusher and a third hydraulic pusher. Dynamic simulation of a horizontal cyclic shear load under a complex stress path is realized, mechanical response of a rockfill body in an actual working condition is completely restored, a data acquisition system integrates a three-dimensional shear force sensor, a laser displacement sensor and a high-speed camera unit, a stress-displacement evolution process and particle motion mesoscopic characteristics can be synchronously captured, and the mechanical response of the rockfill body in the actual working condition is completely restored. And multi-dimensional coupling analysis can be realized in cooperation with a data processing terminal.

The invention relates to the technical field of shearing test devices, and discloses a nuclear power anchor bolt anti-shearing test platform and a test method.The nuclear power anchor bolt anti-shearing test platform comprises a base, the base is provided with a mounting area and a sliding area, and the mounting area is fixedly provided with a test rack; the testing device comprises a mounting area and further comprises sliding rails, a rack assembly, a position adjusting assembly, a testing assembly, a pressing assembly and a moving assembly, sliding areas are arranged on the two sides of the mounting area, the sliding areas on the two sides are symmetrically and fixedly provided with the two sliding rails, the rack assembly is mounted on the sliding rails of the two sliding areas, the position adjusting assembly is mounted on the rack assembly, and the testing assembly is mounted on the rack assembly. The pressing assembly is installed on the upper portion of the rack assembly, and the moving assembly is arranged on the testing rack, so that the problems that in the prior art, due to the fact that the positions of anchor bolts and a base material go wrong, the stress loading direction goes wrong, and shearing resistance data are difficult to obtain accurately are solved.

In-situ vane shear test device for deep sea and method for analyzing strengths of different shear planes of sediments, belonging to the technical field of submarine sediment strength testing. The device includes a bottom-mounted carrier platform, a connecting rod, an operation control cable, a data transmission cable, a pressure sensor, a torque sensor, an intelligent control motor, a speed reducer, a telescopic probe, a connection port and a vane probe. The device enables the coordinated and efficient operation of the pressure sensor and the torque sensor, achieving the ability to simultaneously measure the penetration resistance of the vane probe along the penetration depth and the torque at a specified depth with a single penetration. The device and its sediment strength analysis method achieve the efficient testing and accurate analysis of the undrained shear strengths of the horizontal and vertical shear planes of submarine sediments at different depths, especially solving the problems of discontinuous test data and overly rough strength analysis faced by existing vane shear test technologies, and having significant advantages in the field of in-situ strength testing and application of submarine sediments.