CN111289364B - Tension test equipment and method for carrying out steel wire rope tension test by using same - Google Patents
Tension test equipment and method for carrying out steel wire rope tension test by using same Download PDFInfo
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- CN111289364B CN111289364B CN202010176606.6A CN202010176606A CN111289364B CN 111289364 B CN111289364 B CN 111289364B CN 202010176606 A CN202010176606 A CN 202010176606A CN 111289364 B CN111289364 B CN 111289364B
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- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0003—Steady
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0017—Tensile
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/005—Electromagnetic means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/026—Specifications of the specimen
- G01N2203/0262—Shape of the specimen
- G01N2203/0278—Thin specimens
- G01N2203/028—One dimensional, e.g. filaments, wires, ropes or cables
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0682—Spatial dimension, e.g. length, area, angle
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Abstract
The invention discloses a tensile test device and a method for carrying out a steel wire rope tensile test, wherein a tensile rod is arranged, a clamping block is arranged at one end of the tensile rod, the clamping block and a clamping sleeve are clamped and fixed through a clamping groove, a transition block applies acting force to the clamping sleeve through a fixed shaft when the tensile test is carried out, so that the clamping sleeve applies acting force to a connecting rod through a connecting block, the acting force is transmitted to a first bracket through the connecting rod, so that tensile force is provided for a steel wire rope, through the clamping connection of the clamping sleeve and the clamping block, the connection mode between the clamping sleeve and the clamping block is not hard contact any more, when the clamping sleeve transmits the tensile force, the steel wire rope deforms under the action of the tensile force, the instant tensile force of the steel wire rope can be buffered through the clamping connection mode between the clamping sleeve and the clamping block, when the steel wire rope is stretched, the instant acting force on the steel wire rope cannot, and further, the tensile test result of the steel wire rope is more accurate.
Description
Technical Field
The invention relates to the field of test equipment, in particular to tensile test equipment and a method for performing a steel wire rope tensile test by using the tensile test equipment, and belongs to the technical field of application of tensile test equipment.
Background
The tensile resistance test of the material mainly aims to measure the tensile property of the material, and the tensile property can be detected through a tensile test. In the tensile test (stress-strain test), both ends of a material sample are generally clamped between two clamps spaced apart from each other at a predetermined distance, the two clamps are separated at a predetermined speed to stretch the sample, and the change in stress on the sample is measured until the sample breaks. The tensile test is one of the most widely used methods for researching the mechanical strength of materials, and when the existing steel wire rope tensile test equipment is used for carrying out the tensile test, a steel wire rope is mainly clamped and fixed through a clamp of the tensile test, so that when the steel wire rope is stressed and deformed, the clamp force between the clamp and the steel wire rope is unstable, the clamp and the steel wire rope are easy to loosen, the tensile test result is influenced, and the use requirement cannot be met.
Disclosure of Invention
The invention aims to provide tension test equipment and a method for performing a steel wire rope tension test by using the same, and the tension test equipment and the method are used for solving the technical problems that when the conventional steel wire rope tension test equipment is used for performing a tension test, a steel wire rope is clamped and fixed mainly by a clamp of the tension test, so that when the steel wire rope is stressed and deformed, the clamp and the steel wire rope are easy to loosen due to unstable clamping force between the clamp and the steel wire rope, the tension test result is influenced, and the use requirement cannot be met.
The purpose of the invention can be realized by the following technical scheme:
a tension test device and a method for performing a steel wire rope tension test thereof comprise: the clamping wheel is used for clamping and fixing a steel wire rope, the connecting shaft is used for fixedly supporting the clamping wheel, and the driving motor is used for driving the first support to move so as to drive the steel wire rope to stretch;
the upper end of the second bracket is symmetrically provided with a positioning rod through a mounting hole, one end of the positioning rod is fixedly connected with the first bracket through the mounting hole, make first support pass through locating lever and second support fixed connection, the bottom of second support is provided with solid fixed ring, gu fixed ring's bottom is fixed with the cassette joint through the draw-in groove, the cassette passes through bolt and chassis fixed connection, gu fixed ring's top an organic whole is connected with the ring that is used for fixed wire rope, there is the connecting rod on the top of second support through bolt fixed mounting, the top of connecting rod runs through first support and upwards extends, mounting hole and connecting block fixed connection are passed through on the top of connecting rod, screw hole and tension bar fixed connection are passed through on the top of connecting block, the top an organic whole of tension bar is connected with the fixture block, the fixture block is spherical structure, the one end and the cutting ferrule joint of fixture block are fixed, the one end of cutting ferrule is.
As a further scheme of the invention, one end of the clamping sleeve is provided with a matching hole, and the clamping sleeve is fixedly connected with the fixed shaft through the matching hole.
As a further scheme of the invention, one end of the fixed shaft is fixedly connected with the transition block through the mounting hole, and the transition block is fixedly connected with the movable plate through the bolt.
As a further scheme of the invention, the sliding blocks are symmetrically arranged at one end of the moving plate and fixedly connected with the moving plate through bolts, and one end of each sliding block is connected with a linear guide rail in a sliding manner.
As a further scheme of the invention, the linear guide rail is fixedly connected with the support plate through a bolt, and the bottom end of the support plate is fixedly connected with the underframe through a bolt.
As a further scheme of the invention, the bottom end of the movable plate is fixedly provided with a movable block through a bolt, one end of the movable block is movably connected with a screw rod through a threaded hole, one end of the screw rod is rotatably connected with a driving motor through a bearing, and the driving motor is fixedly connected with the supporting plate through a bolt.
The method for carrying out the steel wire rope tension test by the tension test equipment specifically comprises the following steps:
the method comprises the following steps that firstly, sliding blocks are symmetrically arranged at one end of a moving plate, so that the sliding blocks are fixedly connected with the moving plate through bolts, one end of each sliding block is connected with a linear guide rail in a sliding mode, the linear guide rail is fixedly connected with a supporting plate through a bolt, a movable block is fixedly installed at the bottom end of the moving plate through a bolt, one end of each movable block is movably connected with a screw rod through a threaded hole, one end of each screw rod is rotatably connected with a driving motor through a bearing, and the driving motor is fixedly connected with the supporting;
secondly, the top end of the connecting rod is fixedly connected with the connecting block through a mounting hole, the top end of the connecting block is fixedly connected with the tension rod through a threaded hole, one end of the clamping block is fixedly clamped with the clamping sleeve, the clamping sleeve is fixedly connected with the fixed shaft through a matching hole, one end of the fixed shaft is fixedly connected with the transition block through the mounting hole, and the transition block is fixedly connected with the movable plate through a bolt;
thirdly, symmetrically arranging the clamping wheels at one end of the connecting shaft, enabling the clamping wheels to be rotationally connected with the connecting shaft through keys, fixedly connecting the two ends of the connecting shaft with the fixed seat through the mounting holes, fixedly connecting the fixed seat with the second support through bolts, fixedly installing a supporting rod at the bottom end of the fixed seat through a threaded hole, fixedly connecting the bottom end of the supporting rod with the base through the bolts, and fixedly connecting the base with the second support through the bolts;
and fourthly, fixing one end of a steel wire rope on a connecting shaft between the two clamping wheels, fixing the other end of the steel wire rope on a circular ring arranged at the top end of the fixing ring, starting a driving motor, driving a screw rod to rotate by the driving motor, driving a movable block to move along the length direction of the screw rod by the screw rod, driving a movable plate to move along the length direction of the linear guide rail by the movable block, driving a transition block to move by the movable plate, driving a connecting block to move by a tension rod, driving a first support to move upwards along the length direction of the linear guide rail by the connecting block, driving the steel wire rope to move upwards, and driving the steel wire rope to generate.
The invention has the beneficial effects that:
1. by arranging the tension rod, arranging the clamping block at one end of the tension rod, clamping and fixing the clamping block and the clamping sleeve through the clamping groove, applying an acting force on the clamping sleeve through the fixing shaft by the transition block when a tension test is carried out, applying an acting force on the connecting rod through the connecting block by the clamping sleeve, transmitting the acting force to the first bracket through the connecting rod so as to provide a drawing force for the steel wire rope, and clamping the clamping sleeve and the clamping block, wherein when the drawing force is applied to the steel wire rope, the connecting mode between the clamping sleeve and the clamping block is not hard contact any more, so that when the clamping sleeve transmits the drawing force, the steel wire rope deforms under the action of the tension force, the instantaneous drawing force of the steel wire rope can be buffered through the clamping mode between the clamping sleeve and the clamping block, the instantaneous acting force applied to the steel wire rope can not be overlarge when the steel wire rope is, and further, the tensile test result of the steel wire rope is more accurate.
2. The cross section of connecting axle is long waist type structure, make the junction of connecting axle and fixing base no longer be regular circular port, and then make connecting axle and fixing base pass through mounting hole fixed connection back, be difficult for producing relative rotation between connecting axle and the fixing base, and then make the card wheel can not produce relative rotation along with between connecting axle and the fixing base, make behind the joint wire rope between the card wheel, wire rope can not produce relative rotation between the card wheel, thereby improved the stability of wire rope in carrying out the tensile test in-process greatly, make wire rope can not appear the condition such as pine take off in carrying out the tensile test in-process, and then improved wire rope and carried out tensile test's accuracy.
3. The base is fixedly connected with the second support through a bolt, a compression spring is installed on the supporting rod, the top end of the compression spring is fixedly welded with the fixed seat, when the steel wire rope is stressed to move upwards, the steel wire rope transmits pulling force to the fixed seat through the connecting shaft, so that the fixed seat transmits acting force to the base through the supporting rod, when the steel wire rope is stressed to move upwards, the steel wire rope applies downward acting force to the connecting shaft, so that the connecting shaft applies downward acting force to the fixed seat through the supporting rod, when the connecting shaft is stressed too much, the fixed seat transmits the acting force to the compression spring, the compression spring can buffer the acting force applied to the fixed seat through the elastic deformation force of the compression spring, so that the fixed seat can not generate overlarge deformation amount when being stressed, further, the connecting shaft can not have overlarge deformation amount when supporting the steel wire rope, and further, the steel, and then when the steel wire rope is subjected to a tension test, the test result is less influenced by the deformation of the connecting shaft, and the accuracy of the tension test of the steel wire rope is improved.
4. The cassette passes through bolt and chassis fixed connection, gu fixed ring's top an organic whole is connected with the ring that is used for fixed wire rope, and then when carrying out wire rope tensile test, fix wire rope's one end on the connecting axle between two card wheels, the wire rope other end is fixed on the ring that solid fixed ring top set up, make wire rope when carrying out tensile test, no longer with traditional tensile test the same centre gripping through anchor clamps fixed, make wire rope when carrying out tensile test, the fixed power at both ends is more stable, when having avoided carrying out tensile test, the condition that the pine takes off appears in the clamping-force between wire rope and the anchor clamps.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
Fig. 1 is an overall installation schematic of the present invention.
Fig. 2 is a schematic view of the installation of the first bracket of the present invention.
Fig. 3 is a schematic view of the installation of the second bracket of the present invention.
Fig. 4 is a schematic view of the installation of the moving plate of the present invention.
Fig. 5 is a schematic view of the installation of the driving motor of the present invention.
Fig. 6 is a schematic view of the installation of the tension bar of the present invention.
In the figure: 1. a chassis; 2. a support plate; 3. a linear guide rail; 4. moving the plate; 5. a drive motor; 6. a screw; 7. a first bracket; 8. a connecting rod; 9. a second bracket; 10. positioning a rod; 11. a fixed seat; 12. a connecting shaft; 13. a card holder; 14. a fixing ring; 15. a base; 16. a support bar; 17. a compression spring; 18. clamping the wheel; 19. a transition block; 20. a tension bar; 21. connecting blocks; 22. a movable block; 23. a slider; 24. a fixed shaft; 25. a clamping block; 26. a card sleeve; 27. a mating hole.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, a tensile testing apparatus comprising: the clamping wheel 18 is used for clamping and fixing a steel wire rope, the connecting shaft 12 is used for fixedly supporting the clamping wheel 18, and the driving motor 5 is used for driving the first support 7 to move so as to drive the steel wire rope to stretch, the clamping wheel 18 is symmetrically arranged at one end of the connecting shaft 12, the clamping wheel 18 is rotatably connected with the connecting shaft 12 through a key, two ends of the connecting shaft 12 are fixedly connected with the fixed seat 11 through mounting holes, the fixed seat 11 is fixedly connected with the second support 9 through bolts, the cross section of the connecting shaft 12 is of a long waist-shaped structure, so that the joint of the connecting shaft 12 and the fixed seat 11 is not a regular round hole any more, after the connecting shaft 12 is fixedly connected with the fixed seat 11 through the mounting holes, relative rotation between the connecting shaft 12 and the fixed seat 11 is not easy to generate, further, the clamping wheel 18 cannot generate relative rotation with the connecting shaft 12 and the fixed seat 11, and after the, therefore, the stability of the steel wire rope in the process of the tensile test is greatly improved, the steel wire rope cannot be loosened in the process of the tensile test, and the accuracy of the steel wire rope in the tensile test is further improved.
The bottom end of the fixed seat 11 is fixedly provided with a supporting rod 16 through a threaded hole, the bottom end of the supporting rod 16 is fixedly connected with a base 15 through a bolt, the base 15 is fixedly connected with the second bracket 9 through a bolt, the supporting rod 16 is provided with a compression spring 17, the top end of the compression spring 17 is fixedly welded with the fixed seat 11, then when the steel wire rope is stressed to move upwards, the steel wire rope transmits the pulling force to the fixed seat 11 through the connecting shaft 12, so that the fixed seat 11 transmits the acting force to the base 15 through the supporting rod 16, when the steel wire rope is stressed to move upwards, the steel wire rope applies a downward acting force to the connecting shaft 12, so that the connecting shaft 12 applies a downward acting force to the fixed seat 11 through the supporting rod 16, when the connecting shaft 12 is stressed to be overlarge, the fixed seat 11 transmits the acting force to the, make fixing base 11 can not produce too big deformation when the atress, and then make connecting axle 12 when providing the support to wire rope, can not have too big deformation, and then make wire rope when carrying out tensile test bigger holding power, and then make wire rope when tensile test, the test result receives the deformation of connecting axle 12 to influence lessly, and then has improved wire rope's tensile test accuracy.
The upper end of the second support 9 is symmetrically provided with a positioning rod 10 through a mounting hole, and one end of the positioning rod 10 is fixedly connected with the first support 7 through the mounting hole, so that the first support 7 is fixedly connected with the second support 9 through the positioning rod 10.
The bottom of second support 9 is provided with solid fixed ring 14, solid fixed ring 14's bottom is passed through the draw-in groove and is fixed with cassette 13 joint, cassette 13 passes through bolt and chassis 1 fixed connection, gu fixed ring 14's top an organic whole is connected with the ring that is used for fixed wire rope, and then when carrying out the wire rope tensile test, fix wire rope's one end on connecting axle 12 between two calorie of wheels 18, the wire rope other end is fixed on the ring that solid fixed ring 14 top set up, make wire rope when carrying out tensile test, no longer fixed through the centre gripping of anchor clamps with traditional tensile test is the same, make wire rope when carrying out tensile test, the fixed power at both ends is more stable, when having avoided carrying out tensile test, the condition that the pine takes off appears in the clamping-force between wire.
The top end of the second bracket 9 is fixedly provided with a connecting rod 8 through a bolt, the top end of the connecting rod 8 penetrates through the first bracket 7 and extends upwards, the top end of the connecting rod 8 is fixedly connected with a connecting block 21 through a mounting hole, the top end of the connecting block 21 is fixedly connected with a tension rod 20 through a threaded hole, the top end of the tension rod 20 is integrally connected with a clamping block 25, the clamping block 25 is of a spherical structure, one end of the clamping block 25 is fixedly clamped with a clamping sleeve 26, one end of the clamping sleeve 26 is provided with a clamping groove, the structure of the clamping groove is matched with that of the clamping block 25, one end of the clamping sleeve 26 is provided with a matching hole 27, the clamping sleeve 26 is fixedly connected with a fixed shaft 24 through the mounting hole, one end of the fixed shaft 24 is fixedly connected with a transition block 19 through a bolt, the transition block 19 is fixedly connected with a transition block 4 through a bolt, the tension, when a tension test is carried out, the transition block 19 applies acting force to the clamping sleeve 26 through the fixed shaft 24, so that the clamping sleeve 26 applies acting force to the connecting rod 8 through the connecting block 21, and then transmits the acting force to the first bracket 7 through the connecting rod 8 to provide a tensile force to the wire rope, by clamping the clamping sleeve 26 and the clamping block 25, when tensile force is applied to the steel wire rope, the clamping sleeve 26 and the clamping block 25 are not in hard contact any more, when the clamping sleeve 26 transmits the tensile force and the steel wire rope deforms under the action of the tensile force, the instantaneous tensile force of the steel wire rope is buffered in a clamping mode between the clamping sleeve 26 and the clamping block 25, so that the instantaneous acting force on the steel wire rope is not too large when the steel wire rope is stretched, therefore, the damage of the material performance caused by overlarge acting force at the moment of stress of the steel wire rope is avoided, and the tensile test result of the steel wire rope is more accurate.
The movable plate 4 is provided with the slider 23 in one end symmetry, and the slider 23 passes through bolt and movable plate 4 fixed connection, and the one end sliding connection of slider 23 has linear guide 3, and linear guide 3 passes through bolt and backup pad 2 fixed connection, and the bottom of backup pad 2 passes through bolt and chassis 1 fixed connection.
The bottom end of the moving plate 4 is fixedly provided with a moving block 22 through a bolt, one end of the moving block 22 is movably connected with the screw rod 6 through a threaded hole, one end of the screw rod 6 is rotatably connected with the driving motor 5 through a bearing, the driving motor 5 is fixedly connected with the supporting plate 2 through a bolt, when a steel wire rope tensile test is carried out, the driving motor 5 is started, the driving motor 5 drives the screw rod 6 to rotate, the screw rod 6 drives the moving block 22 to move along the length direction of the screw rod 6, the moving block 22 drives the moving plate 4 to move along the length direction of the linear guide rail 3, the moving plate 4 drives the transition block 19 to move, the connecting block 21 is driven by the tension rod 20 to move, the connecting block 21 drives the first support 7 to move upwards along the length direction of the linear guide rail 3 through the connecting rod 8, the steel wire rope, through starting driving motor 5, driving motor 5 drives the rotation of screw rod 6 to make movable block 22 accomplish the removal of drive movable plate 4, through the transmission of screw rod 6, make movable plate 4 remove more stably along linear guide 3's length direction, and driving motor 5 start with stop controllable, and then make wire rope receive the pulling force controllable along the range of motion of vertical direction, and then make wire rope's tensile test process more nimble.
The method for carrying out the steel wire rope tension test by the tension test equipment specifically comprises the following steps:
firstly, symmetrically arranging sliders 23 at one end of a movable plate 4, enabling the sliders 23 to be fixedly connected with the movable plate 4 through bolts, enabling one ends of the sliders 23 to be in sliding connection with linear guide rails 3, enabling the linear guide rails 3 to be fixedly connected with a support plate 2 through bolts, fixedly installing movable blocks 22 at the bottom end of the movable plate 4 through bolts, enabling one ends of the movable blocks 22 to be movably connected with a screw rod 6 through threaded holes, enabling one end of the screw rod 6 to be rotatably connected with a driving motor 5 through a bearing, and enabling the driving motor 5 to be fixedly connected with the support plate 2 through bolts;
secondly, the top end of the connecting rod 8 is fixedly connected with the connecting block 21 through a mounting hole, the top end of the connecting block 21 is fixedly connected with the tension rod 20 through a threaded hole, one end of the clamping block 25 is clamped and fixed with the clamping sleeve 26, the clamping sleeve 26 is fixedly connected with the fixed shaft 24 through the matching hole 27, one end of the fixed shaft 24 is fixedly connected with the transition block 19 through the mounting hole, and the transition block 19 is fixedly connected with the moving plate 4 through a bolt;
thirdly, the clamping wheels 18 are symmetrically arranged at one end of the connecting shaft 12, so that the clamping wheels 18 are rotatably connected with the connecting shaft 12 through keys, two ends of the connecting shaft 12 are fixedly connected with the fixed seat 11 through mounting holes, the fixed seat 11 is fixedly connected with the second support 9 through bolts, the bottom end of the fixed seat 11 is fixedly provided with a supporting rod 16 through a threaded hole, the bottom end of the supporting rod 16 is fixedly connected with the base 15 through bolts, and the base 15 is fixedly connected with the second support 9 through bolts;
fourthly, one end of a steel wire rope is fixed on the connecting shaft 12 between the two clamping wheels 18, the other end of the steel wire rope is fixed on a circular ring arranged at the top end of the fixing ring 14, the driving motor 5 is started, the driving motor 5 drives the screw rod 6 to rotate, the screw rod 6 drives the movable block 22 to move along the length direction of the screw rod 6, the movable block 22 drives the movable plate 4 to move along the length direction of the linear guide rail 3, the movable plate 4 drives the transition block 19 to move, the connecting block 21 is driven to move through the tension rod 20, the connecting block 21 drives the first support 7 to move upwards along the length direction of the linear guide rail 3 through the connecting rod 8, the steel wire rope is driven to move upwards, and the steel wire rope tension.
When the invention is used, the bottom end of the fixed seat 11 is fixedly provided with the supporting rod 16 through the threaded hole, the bottom end of the supporting rod 16 is fixedly connected with the base 15 through the bolt, the base 15 is fixedly connected with the second bracket 9 through the bolt, the supporting rod 16 is provided with the compression spring 17, the top end of the compression spring 17 is welded and fixed with the fixed seat 11, further, when the steel wire rope is stressed to move upwards, the steel wire rope transmits the pulling force to the fixed seat 11 through the connecting shaft 12, so that the fixed seat 11 transmits the acting force to the base 15 through the supporting rod 16, when the steel wire rope is stressed to move upwards, the steel wire rope applies a downward acting force to the connecting shaft 12, so that the connecting shaft 12 applies a downward acting force to the fixed seat 11 through the supporting rod 16, when the connecting shaft 12 is stressed too much, the fixed, the acting force on the fixing seat 11 can be buffered, so that the fixing seat 11 cannot generate an overlarge deformation amount when stressed, the connecting shaft 12 cannot generate an overlarge deformation amount while supporting the steel wire rope, the steel wire rope has a larger supporting force when a tension test is carried out, the test result is less influenced by the deformation amount of the connecting shaft 12 when the steel wire rope is subjected to the tension test, and the accuracy of the tension test of the steel wire rope is improved; the cross section of the connecting shaft 12 is of a long waist-shaped structure, so that the joint of the connecting shaft 12 and the fixing seat 11 is not a regular circular hole any more, after the connecting shaft 12 and the fixing seat 11 are fixedly connected through the mounting hole, relative rotation is not easy to generate between the connecting shaft 12 and the fixing seat 11, and then the clamping wheel 18 cannot generate relative rotation with the connecting shaft 12 and the fixing seat 11, after the steel wire rope is clamped between the clamping wheels 18, the steel wire rope cannot generate relative rotation between the clamping wheels 18, so that the stability of the steel wire rope in the process of tensile test is greatly improved, the steel wire rope cannot be loosened in the process of tensile test, and the accuracy of the steel wire rope in the tensile test is further improved; the clamping seat 13 is fixedly connected with the underframe 1 through a bolt, the top end of the fixing ring 14 is integrally connected with a circular ring for fixing a steel wire rope, one end of the steel wire rope is fixed on the connecting shaft 12 between the two clamping wheels 18 when a steel wire rope tension test is carried out, the other end of the steel wire rope is fixed on the circular ring arranged at the top end of the fixing ring 14, so that the steel wire rope is not clamped and fixed through a clamp like the traditional tension test any more when the steel wire rope tension test is carried out, the fixing force at the two ends is more stable when the steel wire rope tension test is carried out, and the situation that the clamping force between the steel wire rope and the clamp is loosened when the tension; by arranging the tension rod 20 and arranging the clamping block 25 at one end of the tension rod 20, the clamping block 25 and the clamping sleeve 26 are clamped and fixed through the clamping groove, and further when a tension test is carried out, the transition block 19 applies acting force to the clamping sleeve 26 through the fixing shaft 24, so that the clamping sleeve 26 applies acting force to the connecting rod 8 through the connecting block 21, and further the acting force is transmitted to the first bracket 7 through the connecting rod 8 so as to provide tension for a steel wire rope, through the clamping connection between the clamping sleeve 26 and the clamping block 25, when the tension is applied to the steel wire rope, the connection mode between the clamping sleeve 26 and the clamping block 25 is not hard contact any more, when the clamping sleeve 26 transmits the tension, the steel wire rope is deformed under the action of the tension, the instant tension of the steel wire rope can be buffered through the clamping connection mode between the clamping sleeve 26 and the clamping block 25, and when, therefore, the damage of the material performance caused by overlarge acting force at the moment of stress of the steel wire rope is avoided, and the tensile test result of the steel wire rope is more accurate; the driving motor 5 drives the screw rod 6 to rotate, the screw rod 6 drives the movable block 22 to move along the length direction of the screw rod 6, the movable block 22 drives the movable plate 4 to move along the length direction of the linear guide rail 3, the movable plate 4 drives the transition block 19 to move, the tension rod 20 further drives the connecting block 21 to move, the connecting block 21 drives the first support 7 to move upwards along the length direction of the linear guide rail 3 through the connecting rod 8, the steel wire rope is driven to move upwards, the tensile force of the steel wire rope is deformed, the driving motor 5 drives the screw rod 6 to rotate by starting the driving motor 5, so that the movable block 22 finishes the movement of the driving movable plate 4, the movable plate 4 moves more stably along the length direction of the linear guide rail 3 through the transmission of the screw rod 6, the starting and stopping of the driving motor 5 are controllable, and the movement range of the steel wire rope along the vertical direction under, and further the tensile test process of the steel wire rope is more flexible.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (7)
1. A tensile testing apparatus, comprising: a clamping wheel (18) used for clamping and fixing a steel wire rope, a connecting shaft (12) used for fixedly supporting the clamping wheel (18) and a driving motor (5) used for driving a first support (7) to move so as to drive the steel wire rope to stretch, the clamping wheel (18) is symmetrically arranged at one end of the connecting shaft (12), the clamping wheel (18) is rotatably connected with the connecting shaft (12) through a key, two ends of the connecting shaft (12) are fixedly connected with a fixed seat (11) through mounting holes, the fixed seat (11) is fixedly connected with a second support (9) through bolts, the cross section of the connecting shaft (12) is of a long waist-shaped structure, a supporting rod (16) is fixedly arranged at the bottom end of the fixed seat (11) through a threaded hole, the bottom end of the supporting rod (16) is fixedly connected with a base (15) through bolts, the base (15) is fixedly connected with the second support (9) through bolts, and, the top end of the compression spring (17) is welded and fixed with the fixed seat (11);
the upper end of the second bracket (9) is symmetrically provided with a positioning rod (10) through a mounting hole, one end of the positioning rod (10) is fixedly connected with the first bracket (7) through the mounting hole, so that the first bracket (7) is fixedly connected with the second bracket (9) through the positioning rod (10), the bottom end of the second bracket (9) is provided with a fixing ring (14), the bottom end of the fixing ring (14) is clamped and fixed with a clamping seat (13) through a clamping groove, the clamping seat (13) is fixedly connected with the chassis (1) through a bolt, the top end of the fixing ring (14) is integrally connected with a circular ring for fixing a steel wire rope, the top end of the second bracket (9) is fixedly provided with a connecting rod (8) through a bolt, the top end of the connecting rod (8) penetrates through the first bracket (7) and extends upwards, the top end of the connecting rod (8) is fixedly connected with a connecting block (21) through the mounting hole, and, a clamping block (25) is integrally connected to the top end of the tension rod (20), the clamping block (25) is of a spherical structure, one end of the clamping block (25) is fixedly clamped with a clamping sleeve (26), one end of the clamping sleeve (26) is provided with a clamping groove, and the structure of the clamping groove is matched with that of the clamping block (25);
one end of the clamping sleeve (26) is provided with a matching hole (27), the clamping sleeve (26) is fixedly connected with the fixed shaft (24) through the matching hole (27), and one end of the fixed shaft (24) is fixedly connected with the transition block (19) through the mounting hole;
when carrying out the tensile test, transition piece (19) pass through fixed axle (24) and exert effort to cutting ferrule (26) for cutting ferrule (26) pass through connecting block (21) and exert effort to connecting rod (8), and then provide the tensile force through connecting rod (8) with effort transmission to first support (7).
2. The tensile testing apparatus according to claim 1, wherein one end of the cutting sleeve (26) is provided with a matching hole (27), and the cutting sleeve (26) is fixedly connected with the fixed shaft (24) through the matching hole (27).
3. The tensile testing apparatus according to claim 2, wherein one end of the fixed shaft (24) is fixedly connected with the transition block (19) through a mounting hole, and the transition block (19) is fixedly connected with the movable plate (4) through a bolt.
4. The tensile test equipment according to claim 3, wherein the sliding blocks (23) are symmetrically arranged at one end of the moving plate (4), the sliding blocks (23) are fixedly connected with the moving plate (4) through bolts, and one end of each sliding block (23) is connected with the linear guide rail (3) in a sliding manner.
5. A tensile test equipment according to claim 4, wherein the linear guide rail (3) is fixedly connected with the supporting plate (2) through a bolt, and the bottom end of the supporting plate (2) is fixedly connected with the chassis (1) through a bolt.
6. The tensile test equipment according to claim 4, wherein the bottom end of the movable plate (4) is fixedly provided with a movable block (22) through a bolt, one end of the movable block (22) is movably connected with the screw rod (6) through a threaded hole, one end of the screw rod (6) is rotatably connected with the driving motor (5) through a bearing, and the driving motor (5) is fixedly connected with the support plate (2) through a bolt.
7. A method for performing a steel wire rope tension test by using the tension test equipment as claimed in any one of claims 1 to 6, wherein the test method of the tension test equipment specifically comprises the following steps:
the method comprises the following steps that firstly, sliding blocks (23) are symmetrically arranged at one end of a moving plate (4) to enable the sliding blocks (23) to be fixedly connected with the moving plate (4) through bolts, one end of each sliding block (23) is connected with a linear guide rail (3) in a sliding mode, the linear guide rails (3) are fixedly connected with a supporting plate (2) through bolts, a moving block (22) is fixedly installed at the bottom end of the moving plate (4) through bolts to enable one end of the moving block (22) to be movably connected with a screw rod (6) through a threaded hole, one end of the screw rod (6) is rotatably connected with a driving motor (5) through a bearing, and the driving motor (5) is fixedly connected with the supporting plate;
secondly, the top end of the connecting rod (8) is fixedly connected with the connecting block (21) through a mounting hole, the top end of the connecting block (21) is fixedly connected with the tension rod (20) through a threaded hole, one end of the clamping block (25) is clamped and fixed with the clamping sleeve (26), the clamping sleeve (26) is fixedly connected with the fixed shaft (24) through a matching hole (27), one end of the fixed shaft (24) is fixedly connected with the transition block (19) through the mounting hole, and the transition block (19) is fixedly connected with the movable plate (4) through a bolt;
thirdly, the clamping wheels (18) are symmetrically arranged at one end of the connecting shaft (12), so that the clamping wheels (18) are rotatably connected with the connecting shaft (12) through keys, two ends of the connecting shaft (12) are fixedly connected with the fixing seat (11) through mounting holes, the fixing seat (11) is fixedly connected with the second support (9) through bolts, a supporting rod (16) is fixedly mounted at the bottom end of the fixing seat (11) through a threaded hole, the bottom end of the supporting rod (16) is fixedly connected with the base (15) through bolts, and the base (15) is fixedly connected with the second support (9) through bolts;
and fourthly, fixing one end of a steel wire rope on a connecting shaft (12) between two clamping wheels (18), fixing the other end of the steel wire rope on a circular ring arranged at the top end of a fixing ring (14), starting a driving motor (5), driving the screw rod (6) to rotate by the driving motor (5), driving the movable block (22) to move along the length direction of the screw rod (6) by the screw rod (6), driving the movable block (4) to move along the length direction of the linear guide rail (3) by the movable block (22), driving the transition block (19) to move by the movable block (4), driving the connecting block (21) to move by the tension rod (20), driving the first support (7) to move upwards along the length direction of the linear guide rail (3) by the connecting rod (8) by the connecting block (21), driving the steel wire rope to move upwards, and enabling the tensile force of the steel wire rope to generate deformation.
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| CN112964552B (en) * | 2021-02-05 | 2022-03-08 | 湖北特种设备检验检测研究院 | Elevator wire rope testing arrangement |
| CN113533027B (en) * | 2021-08-12 | 2022-11-08 | 重庆久坤电子有限公司 | FFC flat cable tension tester |
| CN115420609B (en) * | 2022-11-04 | 2023-03-28 | 江苏亚星锚链股份有限公司 | Anchor chain tension test equipment |
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