CN111693373A - High-voltage cable tensile property test system - Google Patents
High-voltage cable tensile property test system Download PDFInfo
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- CN111693373A CN111693373A CN202010734064.XA CN202010734064A CN111693373A CN 111693373 A CN111693373 A CN 111693373A CN 202010734064 A CN202010734064 A CN 202010734064A CN 111693373 A CN111693373 A CN 111693373A
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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
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
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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
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0044—Pneumatic means
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Abstract
The invention relates to the technical field of high-voltage cables, in particular to a system and a method for testing tensile property of a high-voltage cable, which comprises a workbench, a controller, a load sensor, a cable, a support assembly, a peeling mechanism, a clamping mechanism and a translational stretching mechanism, wherein the controller is fixedly arranged at one end of the top of the workbench, the load sensor is arranged on the workbench beside the controller, the support assembly consists of two groups of support frames, the peeling mechanism is arranged at the tops of the two groups of support frames, the clamping mechanism consists of a first base and two groups of clamping devices, the cable is arranged between the two groups of clamping devices, the two groups of support frames are fixedly and symmetrically arranged on the workbench at two sides of the two groups of clamping devices, and the translational stretching mechanism is arranged on the workbench, convenient operation, it is safe high-efficient, greatly improved the efficiency to high-voltage cable tensile test.
Description
Technical Field
The invention relates to the technical field of high-voltage cables, in particular to a system and a method for testing tensile property of a high-voltage cable.
Background
The high-voltage cable is a kind of power cable, generally used for transmitting power between 1kv and 1000kv, and is widely applied to power transmission and distribution, and the high-voltage cable comprises, from inside to outside: conductor, insulation, inner sheath, armor, outer insulation; the armored high-voltage cable is mainly used for being buried underground, can resist the high-strength compression on the ground, and can prevent other external force from damaging.
In the actual use process, the high-voltage cable is installed at high altitude or in a buried mode, and the parameters and the reaching level of the mechanical and electrical performance of the high-voltage cable are particularly critical due to the fact that the high-voltage cable bears the highest-level electric energy transmission. The main means of the mechanical properties measured by tensile tests on corresponding cables is the main basis of the design of strong structure and stiffness, and the tensile property indexes such as elongation, elastic modulus, proportional limit, area reduction, tensile strength, yield point, yield strength and the like are determined by measuring data under the condition of bearing axial tensile load, so that the tensile property indexes are used for checking whether the tensile property indexes meet the specified standards and researching the properties of materials.
The production of cable is through being the inner core transposition, outsourcing multilayer cladding layer structure forms the cable assembly, because the manual work of producing the line is handled or semi-automatization, the easy problem that appears has insulating off-centre, insulation shield thickness is inhomogeneous, there is impurity in the insulation, interior outer shield has protrudingly, the degree of crosslinking is inhomogeneous, the sheath is sealed badly etc. some condition is more serious probably to break down in completing the experiment or soon after the commissioning, most exists with the defect form in the cable system, cause serious hidden danger to the long-term safe operation of cable, the inside heart yearn of high tension cable is generally more than three, the ubiquitous error of present traditional tensile test appearance test easily causes the influence.
Disclosure of Invention
The invention aims to provide a high-voltage cable tensile property testing system which comprises a workbench, a controller, a load sensor, a cable, a supporting component, a peeling mechanism, a clamping mechanism and a translational stretching mechanism, wherein the controller is fixedly arranged at one end of the top of the workbench, the load sensor is arranged on the workbench beside the controller, the supporting component is composed of two groups of supporting frames with the same structure and size, the peeling mechanism is arranged at the tops of the two groups of supporting frames, the clamping mechanism is composed of a first base and two groups of clamping devices with the same structure and size, the cable is arranged between the two groups of clamping devices, the two groups of supporting frames are fixedly and symmetrically arranged on the workbench at two sides of the two groups of clamping devices, the translational stretching mechanism is arranged on the workbench, and the translational stretching mechanism is positioned at the bottom of the supporting component.
Further, two sets of support frames pass through bolt symmetry fixed the setting in the both sides of workstation, and the top of the relative one side of two sets of support frames all is equipped with the bar groove, peeling mechanism includes slide bar, support plate, first cylinder, diaphragm, first step motor, screw bull stick, a pair of horizontal pole and a pair of guide bar and flexible clamping jaw device, a pair of horizontal pole symmetry fixed the setting in the both sides of two sets of support frames, the slide bar is located between two sets of support frame tops, and the both ends of slide bar are through corresponding bar groove and two sets of support frame sliding connection, the support plate is fixed the setting in the middle part of slide bar, first cylinder is handstand form fixed the setting on the support plate, and the output shaft of first cylinder passes the support plate, the diaphragm passes through bolt fixed the setting in one side of corresponding horizontal pole, first step motor is fixed the setting on the.
Further, the screw thread bull stick rotates and sets up between two horizontal poles, and the screw thread bull stick pass the support plate and with support plate threaded connection, the one end of screw thread bull stick is passed and is corresponded the horizontal pole and extend to the horizontal pole outside, the output shaft of first step motor passes through shaft coupling and screw thread bull stick one end fixed connection, a pair of guide bars is symmetrical to be set up in the both sides of screw thread bull stick, and the both ends of a pair of guide bars and the equal fixed connection of two horizontal poles, a pair of guide bars all pass the slide bar and with slide bar sliding connection.
Furthermore, the telescopic clamping jaw device is positioned between the carrier plate and the cable and comprises two groups of clamping components, the two groups of clamping components are symmetrically arranged on each group of clamping components and comprise a sliding sleeve, an upright post, a first hinge rod, a second hinge rod, a clamping plate and a pair of slices, one end of the hollow sliding sleeve is fixedly arranged at the bottom of the support plate, the output shaft of the first air cylinder is sleeved in the sliding sleeve, one end of the upright post is fixedly arranged on the output shaft of the air cylinder, one end of the first hinge rod is hinged at the other end of the upright post, one end of the second hinged rod is fixedly arranged on the sliding sleeve, one end of the V-shaped clamping plate is hinged at the other end of the first hinged rod, and splint top middle part is equipped with the rectangular hole, the other end of second hinge bar passes through the rectangular hole and is articulated with splint, the fixed symmetry of a pair of section sets up on the upper and lower end inner wall of splint.
Further, clamping device includes frame, second step motor, two-way threaded rod, carries on seat, fixed disc and two sets of centre gripping subassemblies that the structure size is the same, the frame is fixed to be set up on the workstation, the second step motor is fixed to be set up in the frame, shaft coupling and second step motor fixed connection are passed through to the one end of two-way threaded rod, carry on the seat and pass through bolt fastening and set up on first base, and carry on the seat and be located between two sets of centre gripping subassemblies, carry on a top middle part and be equipped with the half slot, fixed disc is fixed to be set up in the half slot.
Further, the clamping assembly comprises a clamping block, a pair of hinged seats, a support column, a limiting frame, a reset spring and a limiting plate, the pair of hinged seats are symmetrically and fixedly arranged on two sides of the first base, the middle part of the clamping block is hinged between the pair of hinged seats, the support column is positioned between the carrying seat and the pair of hinged seats, a threaded hole is formed in the side part of the support column, one end of the bidirectional threaded rod is in threaded connection with the support column through the threaded hole, the limiting frame is fixedly arranged on one side of the pair of hinged seats far away from the carrying seat, a transition hole is formed in the bottom of the clamping block, the inner diameter of the transition hole is larger than that of the bidirectional threaded rod, one end of the bidirectional threaded rod penetrates through the transition hole and the carrying frame and extends to the outer side of the carrying frame to be fixedly connected with an output shaft of the second stepping motor, the reset spring is sleeved on the bidirectional threaded, the bottom of the support column is provided with a limiting groove, the limiting plate is fixedly arranged on the first base between the hinge seat and the carrying seat, the top of the limiting plate is connected with the support column in a sliding mode through the limiting groove, and the top of the clamping block is provided with a clamping groove.
Further, translation drawing mechanism includes second base, second cylinder, tensile axle and a pair of slide, the second base is located between its corresponding clamping device and the workstation, workstation top one side is equipped with the mounting groove, the second cylinder is fixed to be set up in the mounting groove, the output shaft fixed connection of shaft coupling and second cylinder is passed through to the one end of tensile axle, and the other end and second base one side fixed connection of tensile axle, a pair of slide passes through the bolt fastening symmetry and sets up in the clamping mechanism both sides, and just one side that a pair of slide is relative is equipped with the spout, the both sides of second base are all fixed and are equipped with the slide rail, two slide rails are through corresponding spout and a pair of slide sliding connection.
Further, controller one side is equipped with the signal case, load sensor is located the signal case, and load sensor and second cylinder electric connection, the controller top is equipped with the display screen.
Furthermore, the controller is electrically connected with the first stepping motor, the second stepping motor, the first cylinder, the second cylinder, the load sensor and the display screen.
According to the improvement of the invention, the invention also provides a test method of the high-voltage cable tensile property test system, which comprises the following steps:
the method comprises the following steps: firstly, a high-voltage cable to be tested is pulled between clamping blocks of two groups of clamping devices;
step two: the controller starts second stepping motors on the two groups of clamping devices, an output shaft of each second stepping motor drives a bidirectional threaded rod to rotate, the bidirectional threaded rods are matched with the two limiting plates to drive the two abutting columns to move back to back, the abutting columns abut against the bottoms of the corresponding clamping blocks and push the clamping blocks, so that the two clamping blocks clamp the high-voltage cable, the corresponding reset springs are compressed by the clamping blocks, and then the second stepping motors are turned off by the controller;
step three: the controller starts the first air cylinder, an output shaft of the first air cylinder drives the two stand columns to stretch, the two stand columns drive the two first hinge rods to stretch, the two first hinge rods are matched with the two second hinge rods to drive the two clamp plates to be pressed, the two clamp plates drive the four slices on the two clamp plates to cut into a shell of the cable, the maximum length of the slices is smaller than the thickness of the shell of the cable, it is guaranteed that an inner core wire is not cut, and then the first air cylinder is closed;
step four: the controller starts a first stepping motor, an output shaft of the first stepping motor drives a threaded rotating rod to rotate, the threaded rotating rod is matched with two guide rods and a pair of strip-shaped grooves to drive a support plate and a sliding column to synchronously translate, and the support plate drives a first air cylinder and a sliding sleeve to translate, so that an outer shell armor insulating layer of the high-voltage cable is peeled off;
step five: the controller starts the second cylinder, the output shaft of second cylinder drives tensile axle tensile, thereby tensile axle cooperation slide rail slides in the spout and drives second base translation, the second base drives and corresponds a set of clamping device translation, thereby clamping device drives the slow tensile of high tension cable, signal transmission such as tensile dynamics and test speed of second cylinder to load sensor, the sensor is with signal transmission to controller, the controller handles the gravity of presetting a set of clamping device and second base to get rid of, thereby the controller will test length, the width, cross sectional area and experimental speed show carry on the display screen.
The invention has the advantages that the automatic and rapid tensile property detection and test system for the high-voltage cable is provided, the test and presentation of the width, the cross section area and the experiment speed of the cable can be realized, and the process control is simple and convenient; meanwhile, the high-voltage cable to be detected can be subjected to tensile test by drawing the high-voltage cable and controlling the high-voltage cable to be detected, so that the tensile test device is convenient to operate, safe and efficient, and greatly improves the efficiency of the tensile test of the high-voltage cable.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings in the embodiments of the present invention are briefly described below.
FIG. 1 is a schematic diagram of a test system according to the present invention;
FIG. 2 is a schematic perspective view of the support assembly and skinning mechanism of the present invention;
FIG. 3 is a schematic illustration of the first cylinder and telescopic jaw apparatus of the present invention shown disassembled;
FIG. 4 is a schematic perspective view of the first base and the clamping device of the present invention;
FIG. 5 is a schematic view of the first base and the clamping device of the present invention shown disassembled;
FIG. 6 is a perspective view of the telescoping jaw assembly and cable of the present invention;
fig. 7 is a schematic perspective view of the support post and the limiting plate according to the present invention;
FIG. 8 is a schematic diagram of the signal box and load cell of the present invention shown disassembled;
FIG. 9 is a schematic disassembled view of the translating and stretching mechanism of the present invention;
FIG. 10 is an enlarged schematic view at A in FIG. 3;
FIG. 11 is an enlarged schematic view at B of FIG. 5;
FIG. 12 is an enlarged schematic view at C of FIG. 9;
in the figure: the device comprises a workbench 1, a mounting groove 10, a controller 2, a signal box 20, a display screen 21, a load sensor 3, a cable 4, a support assembly 5, a support frame 50, a strip-shaped groove 51, a peeling mechanism 6, a sliding rod 60, a support plate 61, a first air cylinder 62, a transverse plate 63, a first stepping motor 64, a threaded rotating rod 65, a transverse rod 66, a guide rod 67, a telescopic clamping jaw device 68, a clamping assembly 680, a sliding sleeve 6800, a stand 6801, a first hinged rod 6802, a second hinged rod 6803, a clamping plate 6804, a slice 6805, a rectangular hole 6806, a clamping mechanism 7, a first base 70, a clamping device 71, a rack 710, a second stepping motor 711, a bidirectional threaded rod 712, a carrying seat 713, a semicircular groove 7130, a fixed disc 714, a clamping assembly 715, a clamping block 7150, a hinged seat 7151, a support column 7152, a limiting frame 7153, a return spring 7154, a limiting plate 7155, a threaded hole 7156, a transition hole 7157, a limiting groove 7158, a clamping groove 7159, second base 80, slide rail 800, second cylinder 81, tensile axle 82, slide 83, spout 830.
Detailed Description
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; to better illustrate the embodiments of the present invention, some components of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product.
Referring to fig. 1 to 12, the system for testing the tensile property of the high-voltage cable comprises a workbench 1, a controller 2, a load sensor 3, a cable 4, a support assembly 5, a peeling mechanism 6, a clamping mechanism 7 and a translational stretching mechanism 8.
The controller 2 is implemented as an STM-series microcontroller or a PLC controller, preferably also provided with buttons or a control panel for controlling the driving components of the motor, cylinder, hydraulic cylinder, etc. Wherein, controller 2 optionally fixed setting is in workstation 1 top one end, and load sensor 3 sets up on the workstation 1 of controller 2 side.
The supporting component 5 is composed of two groups of supporting frames 50 with the same structure size, the peeling mechanism 6 is arranged at the top of the two groups of supporting frames 50, the clamping mechanism 7 is composed of a first base 70 and two groups of clamping devices 71 with the same structure size, the cable 4 is arranged between the two groups of clamping devices 71, the two groups of supporting frames 50 are fixedly and symmetrically arranged on the workbench 1 on two sides of the two groups of clamping devices 71, the translation and stretching mechanism 8 is arranged on the workbench 1, and the translation and stretching mechanism 8 is positioned at the bottom of the supporting component 5.
As shown in the figure, two sets of support frames 50 are symmetrically fixed on two sides of the workbench 1 by bolts, and the top of one side of the two sets of support frames 50 opposite to each other is provided with a strip-shaped groove 51.
Preferably, the peeling mechanism 6 comprises a sliding rod 60, a carrier plate 61, a first cylinder 62, a cross plate 63, a first stepping motor 64, a threaded rotating rod 65, a pair of cross rods 66, a pair of guide rods 67 and a telescopic clamping jaw device 68, wherein the pair of cross rods 66 are symmetrically and fixedly arranged at two sides of the two groups of support frames 50.
The sliding rod 60 is located between the tops of the two sets of supporting frames 50, and two ends of the sliding rod 60 are slidably connected with the two sets of supporting frames 50 through corresponding strip-shaped grooves 51, the supporting plate 61 is fixedly arranged in the middle of the sliding rod 60, the first cylinder 62 is fixedly arranged on the supporting plate 61 in an inverted state, and an output shaft of the first cylinder 62 passes through the supporting plate 61.
The cross plate 63 is fixedly installed at one side of the corresponding cross bar 66 by bolts, and the first stepping motor 64 is fixedly installed at the cross plate 63. So, after the high-voltage cable is clamped tightly, start first step motor 64, the output shaft of first step motor 64 drives screw rotating rod 65 and rotates, and screw rotating rod 65 drives support plate 61 translation, because support plate 61 and sliding column fixed connection, sliding column cooperation both sides strip-shaped groove 51 and two guide bars 67 at the top of support frame 50 drive first cylinder 62 and the sliding sleeve 6800 translation of support plate 61 bottom to four sections 6805 peel off the high-voltage cable shell armor.
As shown in the figure, the screw rotating rod 65 is rotatably disposed between the two cross rods 66, the screw rotating rod 65 penetrates through the carrier plate 61 and is in threaded connection with the carrier plate 61, one end of the screw rotating rod 65 penetrates through the corresponding cross rod 66 and extends to the outside of the cross rod 66, and an output shaft of the first stepping motor 64 is fixedly connected with one end of the screw rotating rod 65 through a coupler.
The pair of guide rods 67 are symmetrically arranged on two sides of the threaded rotating rod 65, two ends of the pair of guide rods 67 are fixedly connected with the two cross rods 66, the pair of guide rods 67 penetrate through the sliding rod 60 and are slidably connected with the sliding rod 60, the transverse plate 63 is provided with a carrier by the first stepping motor 64, the carrier plate 61 is provided with a carrier by the first cylinder 62, and the pair of guide rods 67 play a role in limiting the sliding columns.
As shown in fig. 3, the telescopic jaw arrangement 68 is located between the carrier plate 61 and the cable.
The telescopic clamping jaw device 68 comprises two sets of clamping assemblies 680, and the two sets of clamping assemblies 680 are symmetrically arranged on each set of clamping assemblies 680, and each set of clamping assemblies 680 comprises a sliding sleeve 6800, a stand 6801, a first hinge rod 6802, a second hinge rod 6803, a clamping plate 6804 and a pair of slices 6805.
One end of a hollow sliding sleeve 6800 is fixedly arranged at the bottom of the support plate 61, an output shaft of the first air cylinder 62 is sleeved in the sliding sleeve 6800, one end of the upright 6801 is fixedly arranged on the output shaft of the air cylinder, one end of the first hinge rod 6802 is hinged at the other end of the upright 6801, and one end of the second hinge rod 6803 is fixedly arranged on the sliding sleeve 6800.
One end of the V-shaped clamping plate 6804 is hinged to the other end of the first hinge rod 6802, a rectangular hole 6806 is formed in the middle of the top end of the clamping plate 6804, and the other end of the second hinge rod 6803 is hinged to the clamping plate 6804 through the rectangular hole 6806.
A pair of slices 6805 is fixed and symmetrically arranged on the inner walls of the upper end and the lower end of the clamping plate 6804.
In combination with the drawing, the output shaft of the first cylinder 62 drives the two upright posts 6801 to be stretched, the two upright posts 6801 drive the two first hinge rods 6802 to be stretched, the two first hinge rods 6802 are matched with the two second hinge rods 6803 to drive the two clamping plates 6804 to be pressed, the two clamping plates 6804 drive the four slices 6805 thereon to be cut into the shell of the cable, the maximum length of each slice 6805 is smaller than the thickness of the shell of the cable, and the inner core wires are guaranteed not to be cut.
As shown, the clamping device 71 includes a frame 710, a second stepping motor 711, a bidirectional threaded rod 712, a carrying seat 713, a fixed disk 714, and two sets of clamping assemblies 715 with the same structure and size. The frame 710 is fixedly disposed on the table 1.
As shown, the clamping assembly 715 includes a clamping block 7150, a pair of hinge bases 7151, a prop 7152, a limiting shelf 7153, a return spring 7154, and a limiting plate 7155.
The pair of hinged seats 7151 are symmetrically and fixedly arranged on two sides of the first base 70 through bolts, the middle of the clamping block 7150 is hinged between the pair of hinged seats 7151, the abutting column 7152 is located between the carrying seat 713 and the pair of hinged seats 7151, the side portion of the abutting column 7152 is provided with a threaded hole 7156, one end of the bidirectional threaded rod 712 is in threaded connection with the abutting column 7152 through the threaded hole 7156, and the limiting frame 7153 is fixedly arranged on one side of the pair of hinged seats 7151 far away from the carrying seat 713.
Preferably, a transition hole 7157 is formed in the bottom of the clamping block 7150, the inner diameter of the transition hole 7157 is larger than that of the bidirectional threaded rod 712, one end of the bidirectional threaded rod 712 penetrates through the transition hole 7157 and the carrying frame and extends to the outer side of the carrying frame to be fixedly connected with an output shaft of the second stepping motor 711, the return spring 7154 is sleeved on the bidirectional threaded rod 712 in the carrying frame, and two ends of the return spring 7154 are welded with the clamping block 7150 and the carrying frame.
Preferably, the bottom of the prop 7152 is provided with a limiting groove 7158, the limiting plate 7155 is fixedly disposed on the first base 70 between the hinge seat 7151 and the carrying seat 713, the top of the limiting plate 7155 is slidably connected with the prop 7152 through the limiting groove 7158, and the top of the clamping block 7150 is provided with a clamping groove 7159.
Therefore, the output shaft of the second stepping motor 711 can drive the bidirectional threaded rod 712 to rotate, the bidirectional threaded rod 712 cooperates with the two limiting plates 7155 to drive the two abutting columns 7152 to move back to back, the abutting columns 7152 abut against the bottoms of the corresponding clamping blocks 7150 and push the clamping blocks 7150, so that the tops of the two clamping blocks 7150 clamp the high-voltage cable 4, at the moment, the clamping blocks 7150 compress the corresponding return springs 7154, and the clamping grooves 7159 are used for preventing the high-voltage cable from falling.
Preferably, the translating and stretching mechanism 8 comprises a second base 80, a second cylinder 81, a stretching shaft 82 and a pair of slides 83, the second base 80 being located between its corresponding gripping device 71 and the table 1.
One side of the top of the workbench 1 is provided with a mounting groove 10, and the second cylinder 81 is fixedly arranged in the mounting groove 10.
One end of the stretching shaft 82 is fixedly connected with an output shaft of the second air cylinder 81 through a coupler, the other end of the stretching shaft 82 is fixedly connected with one side of the second base 80, the pair of sliding seats 83 are symmetrically arranged on two sides of the clamping mechanism 7 through bolt fixing, and a sliding groove 830 is arranged on one side, opposite to the pair of sliding seats 83, of the pair of sliding seats 83.
Both sides of second base 80 all are fixed and are equipped with slide rail 800, and two slide rails 800 are through corresponding spout 830 and a pair of slide 83 sliding connection.
Combining the figure, the output shaft of the second cylinder 81 drives the stretching shaft 82 to stretch, the stretching shaft 82 is matched with the sliding rail 800 to slide in the sliding groove 830 so as to drive the second base 80 to translate, the second base 80 drives the corresponding group of clamping devices 71 to translate, and therefore the clamping devices 71 drive the high-voltage cables to stretch slowly.
In combination with the figure, one side of the controller 2 is provided with a signal box 20, the load sensor 3 is located in the signal box 20, the load sensor 3 is electrically connected with the second cylinder 81, and the top of the controller 2 is provided with a display screen 21. When the clamping device 71 for clamping the high-voltage cable 4 is driven to stretch by the second air cylinder 81, signals such as the stretching force and the test speed of the second air cylinder 81 are transmitted to the load sensor 3, the sensor transmits the signals to the controller 2, the controller 2 processes preset gravity elimination of a group of clamping devices 71 and the second base 80, and therefore the controller 2 displays the test length, the test width, the test cross-sectional area and the test speed on the loading display screen 21.
The controller 2, the first stepping motor 64, the second stepping motor 711, the first air cylinder 62, the second air cylinder 81, the load sensor 3 and the display screen 21 are electrically connected, the electrical connection operation is simple, convenience and rapidness are achieved, and the tensile test efficiency of the high-voltage cable is improved.
In combination with the illustration, the operation process of the high voltage cable tensile property testing system shown in fig. 1 includes:
the method comprises the following steps: firstly, the high-voltage cable 4 to be tested is drawn between the clamping blocks 7150 of the two groups of clamping devices 71;
step two: the controller 2 starts the second stepping motors 711 on the two groups of clamping devices 71, an output shaft of the second stepping motors 711 drives the bidirectional threaded rod 712 to rotate, the bidirectional threaded rod 712 cooperates with the two limiting plates 7155 to drive the two abutting columns 7152 to move back and forth, the abutting columns 7152 abut against the bottoms of the corresponding clamping blocks 7150 and push the clamping blocks 7150, so that the two clamping blocks 7150 clamp the high-voltage cable 4, at the moment, the clamping blocks 7150 compress the corresponding return springs 7154, and then the controller 2 closes the second stepping motors 711;
step three: the controller 2 starts the first air cylinder 62, an output shaft of the first air cylinder 62 drives the two upright posts 6801 to stretch, the two upright posts 6801 drive the two first hinge rods 6802 to stretch, the two first hinge rods 6802 are matched with the two second hinge rods 6803 to drive the two clamping plates 6804 to be pressed, the two clamping plates 6804 drive the four slices 6805 on the two first hinge rods to cut into a shell of the cable, the maximum length of each slice 6805 is smaller than the thickness of the shell of the cable, it is guaranteed that an internal core wire is not cut, and then the first air cylinder 62 is closed;
step four: the controller 2 starts the first stepping motor 64, an output shaft of the first stepping motor 64 drives the threaded rotating rod 65 to rotate, the threaded rotating rod 65 is matched with the two guide rods 67 and the pair of strip-shaped grooves 51 to drive the carrier plate 61 and the sliding column to synchronously translate, and the carrier plate 61 drives the first air cylinder 62 and the sliding sleeve 6800 to translate, so that the armored insulating layer of the shell of the high-voltage cable 4 is peeled off;
step five: controller 2 starts second cylinder 81, the output shaft of second cylinder 81 drives tensile axle 82 tensile, thereby tensile axle 82 cooperates slide rail 800 to slide in spout 830 and drive the translation of second base 80, second base 80 drives and corresponds a set of clamping device 71 translation, thereby clamping device 71 drives the slow tensile of high-voltage cable, signal transmission such as tensile dynamics and test speed of second cylinder 81 is to load sensor 3, the sensor is with signal transmission to controller 2, controller 2 handles that preset gets rid of the gravity of a set of clamping device 71 and second base 80, thereby controller 2 will test length, the width, cross sectional area and experimental speed show on carrying display screen 21.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the invention. Therefore, the protection scope of the present invention should be determined by the appended claims.
Claims (9)
1. A high-voltage cable tensile property test system is characterized by comprising a workbench (1), a controller (2), a load sensor (3), a cable (4), a support assembly (5), a peeling mechanism (6), a clamping mechanism (7) and a translational stretching mechanism (8);
the controller (2) is fixedly arranged at one end of the top of the workbench (1), and the load sensor (3) is arranged on the workbench (1) beside the controller (2);
the supporting component (5) consists of two groups of supporting frames (50) with the same structure and size;
the peeling mechanism (6) is arranged at the top of the two groups of supporting frames (50); the two groups of supporting frames (50) are symmetrically and fixedly arranged on two sides of the workbench (1), and the tops of opposite sides of the two groups of supporting frames (50) are provided with strip-shaped grooves (51);
the clamping mechanism (7) is composed of a first base (70) and two groups of clamping devices (71) with the same structure and size, and the cable (4) is arranged between the two groups of clamping devices (71); the two groups of supporting frames (50) are fixedly and symmetrically arranged on the workbench (1) at two sides of the two groups of clamping devices (71);
the translation stretching mechanism (8) is arranged on the workbench (1), and the translation stretching mechanism (8) is positioned at the bottom of the support component (5); the translation stretching mechanism (8) comprises a second base (80), a second air cylinder (81), a stretching shaft (82) and a pair of sliding seats (83), the second base (80) is located between the corresponding clamping device (71) and the workbench (1), an installation groove (10) is formed in one side of the top of the workbench (1), and the second air cylinder (81) is fixedly arranged in the installation groove (10);
the output shaft fixed connection of shaft coupling and second cylinder (81) is passed through to the one end of tensile axle (82), and the other end and second base (80) one side fixed connection of tensile axle (82), a pair of slide (83) set up in fixture (7) both sides through bolt fastening symmetry, and one side is equipped with spout (830) relatively in a pair of slide (83).
2. The high-voltage cable tensile property test system according to claim 1, wherein the peeling mechanism (6) comprises a sliding rod (60), a carrier plate (61), a first air cylinder (62), a transverse plate (63), a first stepping motor (64), a threaded rotating rod (65), a pair of cross rods (66), a pair of guide rods (67) and a telescopic clamping jaw device (68), the pair of cross rods (66) are symmetrically and fixedly arranged at two sides of the two groups of support frames (50), the sliding rod (60) is positioned between the tops of the two groups of support frames (50), two ends of the sliding rod (60) are slidably connected with the two groups of support frames (50) through corresponding strip-shaped grooves (51), the carrier plate (61) is fixedly arranged at the middle part of the sliding rod (60), the first air cylinder (62) is fixedly arranged on the carrier plate (61) in an inverted state, and an output shaft of the first air cylinder (62) passes through the carrier plate (61), the transverse plate (63) is fixedly arranged on one side of the corresponding transverse rod (66) through bolts, and the first stepping motor (64) is fixedly arranged on the transverse plate (63).
3. The high-voltage cable tensile property testing system of claim 3, wherein the threaded rotating rod (65) is rotatably disposed between two cross rods (66), the threaded rotating rod (65) penetrates through the carrier plate (61) and is in threaded connection with the carrier plate (61), one end of the threaded rotating rod (65) penetrates through the corresponding cross rod (66) and extends to the outer side of the cross rod (66), the output shaft of the first stepping motor (64) is fixedly connected with one end of the threaded rotating rod (65) through a coupler, the pair of guide rods (67) are symmetrically disposed on two sides of the threaded rotating rod (65), two ends of the pair of guide rods (67) are fixedly connected with the two cross rods (66), and the pair of guide rods (67) penetrate through the sliding rod (60) and are in sliding connection with the sliding rod (60).
4. The high voltage cable tensile testing system of claim 3, wherein the telescoping jaw arrangement (68) is located between the carrier plate (61) and the cable, the telescoping jaw arrangement (68) comprising two sets of clamping assemblies (680).
5. The high-voltage cable tensile property testing system of claim 1, wherein the clamping device (71) comprises a rack (710), a second stepping motor (711), a bidirectional threaded rod (712), a carrying seat (713), a fixed disc (714) and two groups of clamping components (715) with the same structure and size, the second stepping motor (711) is fixedly arranged on the rack (710), one end of the bidirectional threaded rod (712) is fixedly connected with the second stepping motor (711) through a coupler, the carrying seat (713) is fixedly arranged on the first base (70) through bolts, the carrying seat (713) is located between the two groups of clamping components (715), a semicircular groove (7130) is formed in the middle of the top end of the carrying seat (713), and the fixed disc (714) is fixedly arranged in the semicircular groove (7130).
6. The high-voltage cable tensile property testing system of claim 5, wherein the clamping device (71) comprises a frame (710), a second stepping motor (711), a bidirectional threaded rod (712), a carrying seat (713), a fixed disc (714) and two groups of clamping components (715) with the same structure and size, the second stepping motor (711) is fixedly arranged on the frame (710), and one end of the bidirectional threaded rod (712) is fixedly connected with the second stepping motor (711) through a coupler; the clamping assembly (715) comprises a clamping block (7150), a pair of hinged seats (7151), a resisting column (7152), a limiting frame (7153), a reset spring (7154) and a limiting plate (7155), the pair of hinged seats (7151) are symmetrically and fixedly arranged on two sides of the first base (70) through bolts, the middle part of the clamping block (7150) is hinged between the pair of hinged seats (7151), the resisting column (7152) is positioned between the carrying seat (713) and the pair of hinged seats (7151), a threaded hole (7156) is formed in the side part of the resisting column (7152), one end of the bidirectional threaded rod (712) is in threaded connection with the resisting column (7152) through the threaded hole (7156), and the limiting frame (7153) is fixedly arranged on one side of the pair of hinged seats (7151) far away from the carrying seat (713).
7. The high-voltage cable tensile property test system of claim 6, wherein a transition hole (7157) is formed in the bottom of the clamping block (7150), the inner diameter of the transition hole (7157) is larger than that of the bidirectional threaded rod (712), one end of the bidirectional threaded rod (712) penetrates through the transition hole (7157) and the carrying frame and extends to the outer side of the carrying frame to be fixedly connected with the output shaft of the second stepping motor (711), and the reset spring (7154) is sleeved on the bidirectional threaded rod (712) in the carrying frame.
8. The high-voltage cable tensile property test system of claim 6, wherein a limiting groove (7158) is formed in the bottom of the support pillar (7152), the limiting plate (7155) is fixedly arranged on the first base (70) between the hinge seat (7151) and the carrying seat (713), the top of the limiting plate (7155) is slidably connected with the support pillar (7152) through the limiting groove (7158), and a clamping groove (7159) is formed in the top of the clamping block (7150).
9. The high-voltage cable tensile property test system according to claim 1, wherein two sliding rails (800) are fixedly arranged on two sides of the second base (80), and the two sliding rails (800) are slidably connected with the pair of sliding seats (83) through corresponding sliding grooves (830).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010734064.XA CN111693373A (en) | 2020-07-27 | 2020-07-27 | High-voltage cable tensile property test system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010734064.XA CN111693373A (en) | 2020-07-27 | 2020-07-27 | High-voltage cable tensile property test system |
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| Publication Number | Publication Date |
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| CN111693373A true CN111693373A (en) | 2020-09-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010734064.XA Withdrawn CN111693373A (en) | 2020-07-27 | 2020-07-27 | High-voltage cable tensile property test system |
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| CN (1) | CN111693373A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112146982A (en) * | 2020-09-23 | 2020-12-29 | 游丰盛 | Prestressed tendon elongation tensile detection device capable of removing surface skin |
| CN112228039A (en) * | 2020-10-09 | 2021-01-15 | 贵州航天凯山石油仪器有限公司 | Test cable control device |
| CN112305148A (en) * | 2020-11-30 | 2021-02-02 | 广西顺业线缆有限公司 | Cable quality detection system for urban rail |
| CN112305147A (en) * | 2020-11-30 | 2021-02-02 | 广西顺业线缆有限公司 | Fireproof cable combustion test device |
| CN113917292A (en) * | 2021-09-14 | 2022-01-11 | 西安理工大学 | Insulation performance simulation detection device of high-voltage direct-current transmission line |
| CN114200270A (en) * | 2021-12-16 | 2022-03-18 | 江苏威伦智能电气设备有限公司 | Cable welding inspection device |
| CN114486482A (en) * | 2020-11-12 | 2022-05-13 | 无锡市天成线缆有限公司 | Strength detection device and detection method for armored cable production |
| CN117147303A (en) * | 2023-11-01 | 2023-12-01 | 陕西榆扬金纬电缆制造有限公司 | Cable tensile property testing device |
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2020
- 2020-07-27 CN CN202010734064.XA patent/CN111693373A/en not_active Withdrawn
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112146982A (en) * | 2020-09-23 | 2020-12-29 | 游丰盛 | Prestressed tendon elongation tensile detection device capable of removing surface skin |
| CN112228039A (en) * | 2020-10-09 | 2021-01-15 | 贵州航天凯山石油仪器有限公司 | Test cable control device |
| CN114486482A (en) * | 2020-11-12 | 2022-05-13 | 无锡市天成线缆有限公司 | Strength detection device and detection method for armored cable production |
| CN112305148A (en) * | 2020-11-30 | 2021-02-02 | 广西顺业线缆有限公司 | Cable quality detection system for urban rail |
| CN112305147A (en) * | 2020-11-30 | 2021-02-02 | 广西顺业线缆有限公司 | Fireproof cable combustion test device |
| CN112305148B (en) * | 2020-11-30 | 2021-09-07 | 广西顺业线缆有限公司 | Cable quality detection system for urban rail |
| CN113917292A (en) * | 2021-09-14 | 2022-01-11 | 西安理工大学 | Insulation performance simulation detection device of high-voltage direct-current transmission line |
| CN113917292B (en) * | 2021-09-14 | 2024-04-26 | 西安理工大学 | Insulation performance simulation detection device for high-voltage direct-current transmission line |
| CN114200270A (en) * | 2021-12-16 | 2022-03-18 | 江苏威伦智能电气设备有限公司 | Cable welding inspection device |
| CN114200270B (en) * | 2021-12-16 | 2024-05-24 | 江苏威伦智能电气设备有限公司 | Cable welding inspection device |
| CN117147303A (en) * | 2023-11-01 | 2023-12-01 | 陕西榆扬金纬电缆制造有限公司 | Cable tensile property testing device |
| CN117147303B (en) * | 2023-11-01 | 2024-03-08 | 陕西榆扬金纬电缆制造有限公司 | Cable tensile property testing device |
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Application publication date: 20200922 |