63 results about "Pull off test" patented technology

The utility model discloses a pipe seam type anchor rod drawing force testing device, which is characterized in that a gasket sleeved on a pipe seam type anchor rod and clamped with an anchor rod baffle ring is of a two-section structure, the two sections are combined to form a cylinder body with a gasket flange at the end part, and the outer side of the cylinder body is bound and fixed through an iron wire. And the inner end of the small sleeve is provided with a clamping ring for clamping the flange of the gasket from the inner side. The outer end of the small sleeve is fixedly connected with a small sleeve rod body. The inner end of the large sleeve is open, and the outer end of the large sleeve is provided with an end plate with a center hole. The small sleeve rod body penetrates through the center hole outwards, and the outer end of the small sleeve rod body is connected with a nut used for tightly jacking the hollow jack towards the inner side. The gasket not only has the characteristic of being convenient to assemble, but also can adapt to rod bodies with different thicknesses and is tightly matched with the anchor rod. By utilizing the device, the anchor rods with different sizes can be subjected to drawing test, and the coaxiality adjustment difficulty of related parts of the device is reduced.

The utility model provides a drawing test tool, which belongs to the technical field of energy storage battery manufacturing and testing equipment.The drawing test tool comprises a test bench, a clamping assembly, a gantry support, a first locking assembly, a drawing test assembly and a second locking assembly, the clamping assembly is arranged on the test bench, the gantry support is arranged on the gantry support, and the second locking assembly is arranged on the gantry support. The object to be tested only needs to be clamped and positioned on the test rack through the clamping assembly, the gantry support is slidably arranged on the test rack in the first direction, and the drawing test assembly is slidably arranged on the gantry support in the second direction, so that the drawing test assembly can perform two-dimensional movement on the plane parallel to the test plane of the object to be tested; therefore, the drawing test assemblies can be moved to different test positions on the same surface of the to-be-tested object respectively without moving and adjusting the position of the to-be-tested object on the test bench or reloading the to-be-tested object, and the tensile mechanical properties of the to-be-tested object at different test positions can be tested quickly, accurately and efficiently.

The invention relates to the field of electronic device drawing test equipment, in particular to drawing test equipment which comprises a carrier plate, a pressing assembly, a pulling assembly and an adjusting assembly. The adjusting assembly comprises a first adjusting air cylinder and a second adjusting air cylinder, the output end of the first adjusting air cylinder is connected with the downward-pressing air cylinder, and the output end of the second adjusting air cylinder is connected with the upward-pulling air cylinder. Through the arrangement of the adjusting assembly, when the part locking position and the pulling force applying position deviate due to the size change of the panel, the first adjusting air cylinder and the second adjusting air cylinder are matched, so that the position change of the part is caused by the size change of the panel; the positions of the downward pressing air cylinder and the upward pulling air cylinder can change according to the size of the panel, so that the position of the downward pressing air cylinder and the position of the upward pulling air cylinder always correspond to the position of a part on the panel, panels of different sizes are adapted, the influence of size change on a test result is reduced, and the accuracy of the test result is improved.

The present invention relates to the field of pull-out testing technology, and in particular to an anchor cable and anchor rod pull-out testing device. Its technical solution includes: a loading rate adjustment member, including an outer cylinder, an arc-shaped clamp, a first tooth plate, a first gear, a first flow valve, and a hydraulic clamp. The inner portion of the outer cylinder is slidably connected to a plurality of arc-shaped clamps. The outer arc surface of the arc-shaped clamp is provided with a hydraulic clamp through a round rod. The bottom of the hydraulic clamp is provided with a first tooth plate. The inner wall of the outer cylinder is fixedly installed with a first flow valve. The end of the first flow valve is fixedly installed with a first gear meshing with the first tooth plate. The present invention slows down the loading rate of the hydraulic jack for anchor rod bodies with smaller diameters and relatively lower strength, preventing the anchor rod body from being damaged and unable to accurately obtain its ultimate pull-out force. For anchor rod bodies with larger diameters and higher strength, the present invention speeds up the loading rate of the hydraulic jack and improves detection efficiency.

The utility model belongs to the technical field of winding wire detection devices, and particularly relates to a winding wire anti-drawing test device which comprises a workbench, a protection assembly is arranged on the workbench, a drawing test assembly is arranged on the workbench in the protection assembly, and the drawing test assembly comprises an electric push rod. A movable plate is fixed to the telescopic end of the electric push rod, the movable plate is in sliding connection with a sliding groove formed in the workbench, a fixed block is fixed to the portion, away from one side of the electric push rod, of the workbench, the height of the fixed block is consistent with that of the movable plate, and clamping pieces are fixed to the fixed block and the movable plate respectively. The winding wire testing device has the beneficial effects that the whole structure is simple, a worker can quickly install a winding wire on the testing device, the operation is simple and quick, time and labor are saved, the testing efficiency of the winding wire is improved, the arranged clamping pieces are simple in whole structure, the two ends of the winding wire are clamped firmly, and the operation is easy.

The invention relates to the technical field of concrete detection, in particular to new and old concrete bonding strength detection equipment which comprises a first mounting frame, a second mounting frame, a second electric air cylinder, a connector, a first partition plate and the like. A mounting frame II is arranged beside the two mounting frames I; a second electric air cylinder is fixedly connected to the second mounting frame; the telescopic end of the second electric cylinder is fixedly connected with a connector, and a tension sensor is arranged at the joint of the second electric cylinder and the connector. The two first mounting frames are jointly in sliding connection with two first partition plates which are symmetrically arranged front and back. A plurality of inserting holes are reserved in new concrete through the first protruding rod, during detection, the second protruding rod is inserted into the inserting holes in the new concrete, the new concrete is drawn through the second protruding rod, high-viscosity glue does not need to be used for adhering the drawing jig to the upper side of the new concrete, operation is simpler, and detection efficiency is improved. And the problem that the drawing jig is separated from new concrete is avoided, and the drawing test is prevented from being influenced.

This utility model provides a pull-out testing fixture with a clamping mechanism, relating to the field of pull-out testing technology. It includes a base, with a rectangular seat fixed to the upper end of the base. Clamping blocks are movably mounted on the four inner walls of the rectangular seat. A driving assembly is located at the lower end of the rectangular seat. The driving assembly includes movably mounted connecting rods and connecting rings. The upper end of each connecting rod is integrally formed with the lower end of a clamping block. The four connecting rods are sleeved with the connecting rings. Each connecting rod has a ramp on its outer surface, and the ramp abuts against the inner wall of the connecting ring. This utility model uses an electric telescopic rod to flexibly raise and lower the connecting rings. After the connecting rings move upwards, they slide from the lower end of the ramp to the upper end, causing each connecting rod to simultaneously move towards the axis of the rectangular seat. This allows the connecting rods to drive each clamping block to move synchronously, clamping the material simultaneously, ensuring uniform force on the material, simplifying the operation process, and improving testing efficiency.

The application provides a 20kV cable accessory test detection platform and a detection method, and belongs to the technical field of cable accessory detection. The platform comprises a workbench and a detection mechanism. The detection mechanism comprises a hydraulic oil cylinder fixed on the top of the workbench through a support. The telescopic end of the hydraulic oil cylinder is fixed with a tension sensor. The top of the workbench and the bottom of the tension sensor are both rotationally connected with flat-nose pliers. The application is provided with a guide ring and a magnifying glass. The adjustable guide ring and the embedded magnifying glass on the side plate realize the magnified observation of the crimping position of the wire nose after the pull test. The detection personnel can accurately determine whether the crimping position produces a small crack. The guide ring can move vertically along the side plate to observe the crimping position at different heights. The wire nose can rotate in the horizontal direction to effectively observe the crimping position at different positions in the horizontal direction, thereby greatly improving the detection accuracy of the wire nose pull test.

This utility model provides an automatic pull-out testing device, belonging to the technical field of automatic pull-out testing equipment. It includes a workbench, with a display screen fixedly connected to the rear left side of the top of the workbench. A six-station correction group is fixedly connected to the front left side of the top of the workbench. A station template feeding group is located in front of the station correction group, and station detection and operation indicator lights are located in front of the station template feeding group. This utility model achieves efficient multi-station testing through the cooperation of the dual six-station system, the XYZ three-axis conveying mechanism, and the pull-out testing head group. It can perform multiple testing tasks simultaneously. When station one is testing, station two can be prepared for material feeding simultaneously, significantly shortening the overall testing cycle and greatly improving testing efficiency. Furthermore, the alternating operation mode of the dual stations fully utilizes the equipment's operating time, reducing idle waiting time, and significantly increasing production capacity compared to traditional single-station equipment.

The utility model discloses a top cover test fixture. The top cover test fixture comprises a fixture upper cover and a fixture lower cover which are sequentially arranged from top to bottom, a first area for accommodating a battery cell top cover is arranged in the clamp lower cover; the clamp upper cover and the clamp lower cover are arranged from top to bottom to form a spatial layer, a first area of the clamp lower cover is used for accommodating a battery cell top cover, a second area of the clamp upper cover is used for passing through a pole upper section, and the length and the width of the second area of the clamp upper cover are smaller than those of the battery cell top cover, so that a physical limiting boundary is formed at the edge of the clamp upper cover; the electric core top cover can be fixed and limited during the drawing test, the electric core top cover is ensured not to be influenced by the drawing test to generate displacement and cause test deviation during the test, the test result difference caused by the manual test method is further reduced, and the accuracy and repeatability of the test data are improved. In addition, the top cover test fixture is simple in overall structural design, easy to process and suitable for batch production.

The utility model discloses an anti-pulling auxiliary test device for a foundation pile. The anti-pulling auxiliary test device comprises a main body structure; the main body structure comprises a first base and a second base which are separately arranged; a testing mechanism; the testing mechanism comprises a lifting plate and jacks, the lifting plate is used for lifting the foundation pile to carry out a drawing test, the number of the jacks is two, the two jacks are fixedly installed on the surface of the first base and the surface of the second base respectively and used for lifting the lifting plate, and a hook is arranged in the center of the bottom of the lifting plate. Carrying out an anti-pulling test by combining the hook with the steel wire rope binding foundation pile; a guide assembly is further included. The device is simple in structure and convenient to use, through the split type design, the distance between the first base and the second base can be adjusted according to the diameter of a foundation pile when the foundation pile is subjected to an anti-pulling test, the foundation piles of different specifications can be subjected to the anti-pulling test, the application range of the device is greatly widened, and the device has high practicability.

The utility model relates to the technical field of clamps, in particular to a terminal post drawing force test clamp, which comprises a mounting seat and a terminal post, the terminal post is arranged on the mounting seat, the mounting seat is provided with a fixing assembly matched with the terminal post, the mounting seat is provided with a drawing assembly, and the drawing assembly is arranged on the mounting seat. The drawing assembly is arranged outside the pole in a sleeving manner, a drawing hole is formed in the drawing assembly, the fixing assembly comprises a fixing plate, a mounting groove is formed in the fixing plate, the pole is arranged in the mounting groove, a pressing plate is arranged on the fixing plate, a through hole matched with the pole is formed in the pressing plate, and the fixing plate is arranged in the mounting groove. The pole penetrates through the through hole to be connected with the drawing assembly, the pole is fixed by arranging the fixing assembly, the pole is prevented from being separated from the fixing plate during drawing, the pole is clamped and fixed by arranging the drawing assembly, and a drawing test can be performed on the pole by pulling the drawing assembly upwards, so that convenience and rapidness are achieved.

This invention relates to an apparatus and method for measuring the bonding strength of multilayer D2W hybrid bonded chips, belonging to the field of semiconductor packaging technology. It addresses one of the problems of inaccurate and large errors in measuring the bonding strength of multilayer, small, and thin D2W hybrid bonded chips. The method of this invention uses the centripetal force generated during the chip's high-speed rotation to replace the tensile force applied during the pulling process. Since the centripetal force always acts perpendicularly towards the center of rotation, it is always uniformly applied to the bonding interface, avoiding stress concentration. The test is conducted under vacuum conditions, avoiding the influence of air resistance on the test structure's side surface on the uneven distribution of centripetal force under high-speed rotation. Extensive testing revealed that a correction factor α needs to be added to the calculation of bonding strength. This correction factor was obtained through comparison with currently widely accepted pull-out tests and is highly representative.

The utility model provides a device capable of measuring underpressure and overpressure of an elastic sealing gasket at a flange joint, a pressure stress test hole is arranged on the outer surface of the edge of the elastic sealing gasket, and a pressure stress test plate matched with the inner wall of the pressure stress test hole is arranged in the pressure stress test hole. The pressure stress test plate in the pressure stress test hole is parallel to the pressed surface of the elastic sealing gasket; the end part, extending out of the pressure stress testing hole, of the pressure stress testing plate is provided with a wiring part, and the wiring part is connected with an under-voltage testing rope and an over-voltage testing rope. When a drawing test is carried out, the under-pressure test rope and the over-pressure test rope respectively correspond to the condition that the under-pressure test rope and the over-pressure test rope are broken or intact, so that whether the actual pressure stress borne by the elastic sealing gasket meets the requirement relative to a specified value or not can be timely, simply, conveniently and effectively judged, and the under-pressure and over-pressure conditions are avoided; therefore, the safe sealing performance and effectiveness of the elastic sealing gasket are guaranteed.

The invention discloses a method for measuring loosening damage of an anchoring interface of an anchor rod in a roadway circulating tunneling disturbance process. A test drill hole is constructed in a top plate of a to-be-supported area; a tunneling vibration sensor is installed in the test drill hole; in the tunneling operation process, a tunneling vibration sensor is used for collecting vibration signals and storing the vibration signals; receiving and storing the vibration signal by using a wireless collector; receiving the vibration signal by using an industrial computer and analyzing and processing the vibration signal to obtain vibration excitation data; a steel pipe full-anchor test piece is manufactured under the laboratory condition; a low-frequency vibration simulation test system is adopted, vibration excitation is carried out on a steel pipe full-anchor test piece according to vibration excitation data, then an electro-hydraulic servo mechanical test system is used for carrying out a drawing test, drawing stress, displacement data and acoustic emission monitoring data in the drawing test process are integrated, and finally the loosening damage rule of the anchoring interface of the anchor rod is obtained through analysis. The method is accurate in monitoring and analysis result, and the loosening damage rule of the anchoring interface of the anchor rod can be accurately and effectively analyzed.

The present invention discloses a drawing device for measuring the diameter of a large-aperture diamond wire drawing die. With the help of a hollow hydraulic cylinder structure, a quick positioning mechanism, a connector and a positioning plate of the mold to be tested, a drawing test is performed on the large-aperture diamond wire drawing die. By manually applying continuous pressure, the piston movement of the hollow hydraulic cylinder drives the threaded pull rod to move to the side away from the positioning plate of the mold to be tested, so that the test rod passes through the aperture of the mold to be tested, and the pressure value display shows the corresponding pressure value. The above-mentioned drawing device for measuring the diameter of a large-aperture diamond wire drawing die can realize convenient and quick clamping of workpieces, firmly and reliably pull samples, and ensure the drawing capacity required when measuring the aperture of a large-aperture diamond wire drawing die; it can be used for drawing tests on large-aperture and super-large-aperture diamond wire drawing dies with a diameter of more than 7 mm, and there will be no "unable to get stuck" or "unable to pull" phenomena. The present invention also provides a method for measuring the diameter of a large-aperture diamond wire drawing die.

The utility model provides a kind of clamp fixing device and drawing equipment, it is related to mechanics detection device technical field.The clamp fixing device includes the fixed assembly and clamping assembly of cooperative action, the stable fixing of clamp body can be realized, to effectively solve the technical problem that clamp is difficult to be fixed stably in drawing test process.Specifically, fixed assembly includes fixed frame, fixing piece and positioning piece.Fixing piece is connected with fixed frame, to avoid the swing of the head of clamp, to provide a stable clamping basis for clamp.Positioning piece is connected with fixed frame, to pass through the gap between the two handles of clamp, and with the handle inboard of clamp abut, to realize the transverse limiting and support of clamp, ensure that clamp maintains stable posture during testing.And clamping assembly is located below fixed assembly, and it is used to clamp the sleeve of clamp, ensure that it maintains stable during drawing, so as to accurately evaluate the tensile strength of sleeve.

The utility model relates to the technical field of connectors, and discloses a welding structure for improving the reliability of a connector, which comprises a PCB (printed circuit board) and the connector, a plurality of welding grooves are arranged on the PCB, the longitudinal section of each welding groove is in the shape of a right trapezoid, a plurality of pins are connected onto the connector, each pin is provided with an inclined plane, and the pins can be placed in the welding grooves. According to the technical scheme of the utility model, the welding reliability can be improved, the situations of continuous welding, insufficient welding and the like can be prevented, and meanwhile, the risks of falling off, deformation and failure of the connector can be reduced in the drawing test process.

The present application belongs to the field of testing technology, and relates to an anchor bolt pulling test device and a test method. The anchor bolt pulling test device includes a bracket and a linear power cylinder, the linear power cylinder includes a cylinder body and a piston rod, the cylinder body is fixed on the bracket, the piston rod is arranged on the cylinder body, and can reciprocate along the vertical direction of the cylinder body, a detection component capable of detecting the movement of the piston rod is arranged between the piston rod and the cylinder body, a pulling rod is arranged along the vertical direction of the piston rod, the lower end of the pulling rod is detachably connected to a mounting seat, the lower end of the mounting seat is provided with a mounting groove for the anchor bolt connecting block to be embedded, the anchor bolt connecting block is provided with a threaded hole capable of being threadedly connected with the anchor bolt, a positioning component is arranged at the bottom of the bracket, the positioning component can abut against the anchor bolt to be tested to form a positioning, and has the advantages of high testing accuracy.

The utility model discloses a toughness drawing test device for processing a polyamide heat insulation strip, and relates to the technical field of toughness detection. The device comprises a device main body, a groove and a heat insulation strip, wherein a displacement mechanism is arranged in the groove; according to the utility model, through the arrangement of the arc-shaped plate, the cylindrical rod, the clamping plate and the electric push rod, before a test, a heat insulation strip is tightly attached to the outer side of the arc-shaped plate and the outer side of the cylindrical rod to surround the arc-shaped plate and the outer side of the cylindrical rod, and the electric push rod is started; the displacement mechanism is used for driving the heat insulation strip to be continuously pulled towards the two sides, the heat insulation strip is subjected to outward pulling force, the pressing force generated when the electric push rod pushes the clamping plate faces the outer side, and the friction force between the arc-shaped plate and the cylindrical rod and the heat insulation strip is buffered, so that compared with the mode that the heat insulation strip is directly pressed, the heat insulation strip is not prone to falling off. In this way, the situation that the heat insulation strip slips off in the test can be well avoided.

A method for determining the length of the anchoring and bonding section of a rock bolt to adapt to the disturbance of cyclic tunneling, a test borehole is constructed on the roof; a fixed monitoring device is installed in the test borehole; during the tunneling operation, the fixed monitoring device is used to collect and store vibration signals; a portable acquisition terminal is used to receive and store the vibration signals; an industrial computer is used to receive the vibration signals and analyze and process them to obtain vibration excitation data; an anchoring test piece is made; a low-frequency vibration simulation test system is used to obtain vibration signal data according to the similarity ratio, and the anchoring test piece is subjected to vibration excitation according to the vibration signal data; then, an electro-hydraulic servo mechanics test system is used for pull-out testing; and finally, the loosening damage degree of the anchoring interface corresponding to different bonding lengths of the anchoring test piece is analyzed by comprehensively analyzing the pull-out stress, displacement data and acoustic emission monitoring data during the pull-out test. The method can effectively determine the length of the anchoring and bonding section of the rock bolt to adapt to the disturbance of cyclic tunneling.

The invention discloses a grouting-free water-swelling anchor rod anchoring performance test device which comprises a reaction container, an elastic constraint assembly, a spiral anchor rod, a data acquisition assembly and an anchoring connection assembly. The reaction container is of a hollow cylinder structure with variable volume, and an openable cover plate is arranged at one end of the reaction container; the elastic constraint assembly is circumferentially arranged along the inner wall of the reaction container, and the rigidity of the elastic constraint assembly is adjustable to simulate different rock-soil body constraint conditions; the spiral anchor rod penetrates through the axial center of the reaction container and comprises a water injection channel and a stirring structure; the data acquisition assembly is arranged below the cover plate assembly and is used for monitoring reaction expansion force; the anchoring connection assemblies are arranged at the bottom of the reaction container and the top of the spiral anchor rod respectively and used for being connected with a testing machine for drawing testing. The rigidity-adjustable rubber spring inner wall and the variable container volume design are arranged for the water swelling material test, so that different environmental conditions are simulated, complex working conditions such as rock-soil cracks and crushing are dynamically reproduced, and the test result is close to a real anchoring scene.

The utility model belongs to the technical field of power station engineering, and particularly relates to a photovoltaic spiral steel pile drawing simple test device which comprises a base and a support, the support is installed on the base, a drawing instrument is detachably connected to the upper portion of the support, the drawing end of the drawing instrument penetrates through the support, the drawing instrument is used for drawing a steel pile, and the steel pile is located in the base. The periphery of the steel pile is detachably connected with a clamping ring, the clamping ring is detachably connected with the end of the drawing instrument through a steel wire rope, and a displacement detection mechanism is arranged on the base. Compared with the prior art, the steel pile pull-out test device is simple in structure, not only can realize a pull-out test on a steel pile, but also can be directly assembled on site to avoid the situation that the pull-out test device is pre-checked in advance and reduce the manufacturing cost, and can adjust the position of the cross arm to enable the pointer end part of the dial indicator to be flush with the upper surface of the steel pile; and the displacement change of the steel pile in the drawing process can be detected.

The invention provides a device and a method for an in-situ drawing test of an underwater rock mass, and belongs to the field of marine geological survey. The device comprises a core drilling machine, a core drilling rod, a tightening device, a hydraulic jack, a vibrating wire dynamometer and a data acquisition instrument, the core drilling machine is used for controlling the core drilling rod to move or rotatably drill a target rock mass, the core drilling rod is vertically arranged, the top of the core drilling rod is connected with the core drilling machine, and the tightening device is arranged at the end, close to the bottom, of the core drilling rod. The tightening device is used for locking a drilled target rock mass, the hydraulic jack and the vibrating wire type dynamometer are arranged on the rock core drill rod in a sleeving manner, the hydraulic jack is used for providing drawing force for the rock core drill rod, the vibrating wire type dynamometer is used for measuring the drawing force of the hydraulic jack, and the data acquisition instrument is in signal connection with the vibrating wire type dynamometer. By adopting the device and the method for the in-situ drawing test of the underwater rock mass, provided by the embodiment of the invention, the problem of relatively low accuracy of drawing test data in the prior art can be solved.

The invention relates to the technical field of drawing testing, in particular to an anchor cable and anchor rod drawing testing device. According to the technical scheme, the loading rate adjusting part comprises an outer cylinder, arc-shaped clamping plates, a first toothed plate, a first gear, a first flow valve and a hydraulic clamp part, the multiple arc-shaped clamping plates are slidably connected into the outer cylinder, the hydraulic clamp part is arranged on the outer arc surfaces of the arc-shaped clamping plates through round rods, the first toothed plate is arranged at the bottom of the hydraulic clamp part, and the first gear is arranged on the first toothed plate. A first flow valve is fixedly installed on the inner wall of the outer cylinder, and a first gear connected with the first toothed plate in an engaged mode is fixedly installed at the end of the first flow valve. For an anchor rod body with a small diameter and relatively low strength, the loading rate of the hydraulic jack is reduced, and the situation that the limit drawing force of the anchor rod body cannot be accurately obtained due to the fact that the anchor rod body is damaged is prevented; for an anchor rod body with a large diameter and high strength, the loading rate of the hydraulic jack is increased, and the detection efficiency is improved.

The utility model relates to the field of non-metallic composite material drawing tests, and provides a non-destructive non-metallic composite material pipe drawing test tool which comprises a flange assembly, an upper fixing disc, a lower fixing disc, an upper sliding block structure, a lower sliding block structure and a chuck. The upper flange and the lower flange are symmetrically mounted on the upper side and the lower side of the pipe, the upper fixing disc and the upper sliding block structure form a first mounting cavity, and the upper flange is fixed in the first mounting cavity; the lower flange is fixed on the test platform through the lower fixing disc and the lower sliding block structure, the chuck is installed at the central position of the upper fixing disc, and the test machine conducts drawing test on the pipe by clamping the chuck. According to the non-destructive drawing test tool for the non-metal composite material pipe, the pipe cannot be damaged during test, the drawing test of the non-metal composite material pipe can be realized, and the test method has the advantages of high reliability and accurate measured data.

The invention relates to the technical field of buckle drawing testing, in particular to a novel nylon buckle matching strength testing device for an anti-falling protection device and a testing method of the novel nylon buckle matching strength testing device. Comprising a test platform, and a protective shell is arranged at the top of the test platform; and a multi-angle stress application mechanism is arranged in the protective shell. Stable pulling force is applied to the buckled nylon buckle through the circulating drawing mechanism, then the multi-angle force applying mechanism is controlled to apply force in different directions to the buckled nylon buckle, and the multi-angle force applying mechanism can simulate working conditions such as high temperature and humidity which are easily encountered by the nylon buckle outdoors. Meanwhile, when the nylon buckle reaches the working limit and is damaged, the cyclic drawing mechanism can be quickly switched to a new nylon buckle, so that temperature strength tests in different environments can be carried out, the situation that the test work lacks continuity due to manual buckle replacement is avoided, and the efficiency of the test work is also improved under the condition that the test precision of the test device is improved.

The application discloses a method for matching the oxide skin state and the shot blasting performance of Q355 grade engineering machinery steel, which comprises the following steps: S1, taking two samples with the same size, measuring the residual area S1 of the oxide skin of the A sample by using a 3D profile measuring instrument, measuring the total measurement area S0, and testing the adhesion F of the B sample by using an adhesion pull tester; S2, cutting a metallographic analysis sample from the A sample, polishing and polishing the cross section, and then corroding the cross section by using 4% nitric acid-alcohol metallographic liquid, observing the cross section morphology by using a metallographic microscope, and measuring the total thickness T of Fe3O4 and FeO; S3, comprehensively analyzing the shot blasting performance of the oxide skin according to the residual area S1 of the oxide skin, the adhesion F and the thickness T of the oxide skin, and selecting a proper shot blasting process according to the analysis result. The method has the advantages that the shot blasting performance of the oxide skin can be quantitatively evaluated, the evaluation result is matched with the shot blasting pellet size, and the shot blasting effect of the oxide skin is greatly improved.

The utility model discloses a putty powder drawing test device, which belongs to the technical field of putty powder detection and comprises a bottom plate, a detection plate and a transverse plate, a plurality of detection cylinders are fixedly mounted at the bottom of the transverse plate, springs are fixedly mounted below the interiors of the detection cylinders, and sliding plates are mounted on the top surfaces of the springs. A pull rod is fixedly mounted at the bottom of the sliding plate and extends to the outer side of the detection cylinder, and an insertion rod is fixedly mounted on the side wall of the pull rod; a strip-shaped hole is longitudinally formed in the side wall of the detection cylinder, a graduated scale is longitudinally embedded in the outer wall of the detection cylinder, and a pointer is fixedly installed on the side wall of the sliding plate, extends to the outer side of the strip-shaped hole and points to the graduated scale; the detection plate is slidably arranged on the top surface of the bottom plate, a drawing plate is arranged on the top surface of the detection plate, a vertical plate with an insertion hole is mounted on the top surface of the drawing plate, and the insertion hole is matched with the insertion rod. Compared with the prior art, the device can test the adhesion strength of various different putty powder at the same time, so that the test efficiency of the putty powder is greatly improved.