Device for continuously testing tensile strength of steel cable

Abstract

The invention discloses a steel cable tensile strength continuous testing device, and relates to the technical field of new material tension testing, the steel cable tensile strength continuous testing device comprises a base and an outer frame arranged on the base, the outer frame is provided with an adjusting plate, the adjusting plate is provided with a connecting joint, and the steel cable tensile strength continuous testing device further comprises a quick release mechanism arranged on the connecting joint; the lifting block is installed at the bottom end of the connecting joint through a quick release mechanism, a first sliding frame and a second sliding frame are installed on the lifting block in a sliding mode, and a top plate is fixedly installed on the first sliding frame and the second sliding frame; inner blocks are vertically installed in the first sliding frame and the second sliding frame in a sliding mode, and a steel cable body is arranged between the first sliding frame and the second sliding frame. And the positioning rod is vertically arranged on the first sliding frame. According to the invention, the steel cable is automatically carried and moved to the middle position of the turntable for continuous testing, and in the testing of the steel cable, manual replacement and other operations of an operator are not needed, so that the labor intensity of the operator is greatly reduced, and the testing efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of new material tensile testing technology, specifically to a continuous testing device for the tensile strength of steel cables. Background Technology

[0002] Steel cables are helical bundles of steel wires twisted around a core. Common structures include 7×7×3 and 6×6×19. The central wire of each strand is double-helical, while the remaining layers are triple-helical. They consist of steel wires, a core, and lubricant. The production process involves three steps: wire drawing, strand twisting, and rope assembly. Oiling and other processes are used to improve rust resistance.

[0003] After steel cables are manufactured, they typically undergo tensile strength testing to understand their performance and maximum tensile strength. This testing is usually conducted using a tensile testing machine, which stretches the steel cable until it breaks to test its tensile strength. However, existing testing equipment typically mounts a single steel cable onto the clamping device of the testing machine during testing, and then removes the broken cable after the test. Therefore, during the entire testing process, workers spend a significant amount of time on changing the steel cable, and the testing machine will also stop testing and become unusable when the cable is being replaced. Summary of the Invention

[0004] The purpose of this invention is to provide a continuous testing device for the tensile strength of steel cables to overcome the above-mentioned shortcomings in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a continuous tensile strength testing device for steel cables, comprising a base and an outer frame thereon, an adjusting plate mounted on the outer frame, a connecting section mounted on the adjusting plate, and further comprising: a quick-release mechanism mounted on the connecting section; a lifting block mounted on the bottom end of the connecting section via the quick-release mechanism, a first sliding frame and a second sliding frame slidably mounted on the lifting block, a top plate fixedly mounted on the first and second sliding frames; an inner block vertically slidably mounted inside each of the first and second sliding frames, and a steel cable body disposed between the first and second sliding frames; a positioning rod vertically mounted on the first sliding frame; and a turntable rotatably mounted on the outer frame, the rotation of which sequentially performs tensile strength tests on several steel cable bodies on the lifting block.

[0006] Preferably, a screw is spirally mounted on the inner block of the first slide frame, and a first limiting frame is rotatably mounted on the end of the screw near the second slide frame, while a second limiting frame is fixedly mounted on the surface of the inner block of the second slide frame.

[0007] Preferably, the quick-release mechanism includes a connecting frame fixedly installed on the lifting block, the connecting frame being L-shaped and having an installation groove.

[0008] A connecting plate is fixedly connected to the bottom end of the connecting section, and a mounting plate is fixedly connected to the bottom end of the connecting plate. Both the mounting plate and the mounting groove are T-shaped, and limit grooves are provided on both the mounting plate and the connecting frame.

[0009] Preferably, a support plate is fixedly installed on the outer frame, a connecting rod is fixedly installed on the support plate, an intermediate plate is fixedly installed on the connecting rod, a connecting strip is fixedly installed on the intermediate plate, an outer variable strip is fixedly installed on the connecting strip, a displacement strip is fixedly installed on the outer variable strip, and an outer ring is fixedly installed on the intermediate plate.

[0010] A slider is slidably mounted on the turntable along its radial direction. A circular block is fixedly mounted on the slider. A clamping frame is fixedly mounted on the circular block. A rotating frame is rotatably mounted on the circular block.

[0011] A base plate is fixedly installed at the bottom of the rotating frame, and a long strip is fixedly installed on the base plate.

[0012] Preferably, the outer ring is provided with a displacement arc edge.

[0013] Preferably, the base plate is L-shaped, and a return spring is fixedly installed between the bottom end of the base plate and the circular block.

[0014] Preferably, the inner wall of the rotating frame is provided with a number of spikes.

[0015] Preferably, the positioning rod is L-shaped, and the lifting block is provided with a first sliding groove and a second sliding groove, and a vertical groove is provided at the connection position of the first sliding groove and the second sliding groove;

[0016] The lifting block also has an inner groove.

[0017] Preferably, a second spring is fixedly installed between the top of the slider and the turntable.

[0018] Preferably, the top of the lifting block is provided with a first inclined edge, and the bottom of the first sliding frame and the second sliding frame are provided with a second inclined edge.

[0019] In the above technical solution, the present invention provides a continuous testing device for the tensile strength of steel cables, which has the following beneficial effects: When tensile strength testing is required, the operator can install several steel cables on the first and second sliding frames of the same group outside the machine while it is working, until the previous round of testing is completed. At this time, the previous group of connecting frames is removed, and then the connecting frames of the steel cables to be tested in the next round are installed on the connecting sections. At this time, several steel cables can be quickly installed on the machine, so that the testing machine can be put into use quickly without being idle for too long. Then a new round of testing begins. In the new round of testing, as the turntable rotates, the tensile strength test is first performed on the steel cable located in the middle position of the turntable until the steel cable breaks. The remaining steel cables will automatically move to the middle position of the turntable for continuous testing. In this round of testing, there is no need for manual replacement by the operator, which greatly reduces the labor intensity of the staff and improves the testing efficiency. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0021] Figure 1 This is a three-dimensional structural schematic diagram provided for an embodiment of the present invention;

[0022] Figure 2 Provided for embodiments of the present invention Figure 1 A schematic diagram of the structure of the part;

[0023] Figure 3 A schematic diagram of the bottom structure of the connecting frame provided in an embodiment of the present invention;

[0024] Figure 4 This is a partial structural diagram of the turntable provided in an embodiment of the present invention;

[0025] Figure 5 This is a partial structural diagram of the outer ring provided in an embodiment of the present invention;

[0026] Figure 6 This is a partial structural schematic diagram of the slider provided in an embodiment of the present invention;

[0027] Figure 7 This is a partial structural schematic diagram of the lifting block provided in an embodiment of the present invention;

[0028] Figure 8 Provided for embodiments of the present invention Figure 7 A schematic diagram of the structure at point A;

[0029] Figure 9This is a partial structural diagram of the first and second sliding frames provided in an embodiment of the present invention.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Base; 2. Outer frame; 3. Adjusting plate; 4. Connecting section; 51. Connecting plate; 52. Mounting plate; 53. Connecting frame; 531. Mounting groove; 54. Limiting groove; 61. Lifting block; 611. First sliding groove; 612. Second sliding groove; 613. Inner groove; 62. First sliding frame; 63. Top plate; 64. Second sliding frame; 65. Inner block; 66. Screw; 67. Positioning rod; 68. 69. First spring; 7. First limiting frame; 80. Steel cable body; 81. Support plate; 82. Turntable; 83. Connecting rod; 84. Intermediate plate; 85. Connecting strip; 86. Outer changing strip; 87. Changing strip; 88. Outer ring; 881. Changing arc edge; 91. Sliding block; 92. Round block; 93. Turning frame; 94. Clamping frame; 95. Base plate; 96. Long strip; 97. Second spring; 98. Return spring. Detailed Implementation

[0032] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0033] Please see Figures 1-9 A continuous tensile strength testing device for steel cables includes a base 1 and an outer frame 2 mounted thereon. An adjusting plate 3 is installed on the outer frame 2, and a connecting section 4 is installed on the adjusting plate 3. The device also includes a quick-release mechanism mounted on the connecting section 4; a lifting block 61, which is installed at the bottom end of the connecting section 4 via the quick-release mechanism; a first sliding frame 62 and a second sliding frame 64 are slidably mounted on the lifting block 61; a top plate 63 is fixedly mounted on the first sliding frame 62 and the second sliding frame 64; an inner block 65 is vertically slidably mounted inside both the first sliding frame 62 and the second sliding frame 64; and a steel cable body 7 is disposed between the first sliding frame 62 and the second sliding frame 64.

[0034] The positioning rod 67 is vertically mounted on the first sliding frame 62;

[0035] Turntable 82 is mounted on the outer frame 2, and the rotation of turntable 82 will sequentially test the tensile strength of several steel cable bodies 7 on the lifting block 61.

[0036] In another embodiment of the present invention: a screw 66 is spirally mounted on the inner block 65 of the first slide frame 62, and a first limiting frame 69 is rotatably mounted on one end of the screw 66 near the second slide frame 64, while a second limiting frame is fixedly mounted on the surface of the inner block 65 on the second slide frame 64.

[0037] The first limiting frame 69 and the second limiting frame are both semi-circular. When the steel cable body 7 is placed between the first limiting frame 69 and the second limiting frame, the first limiting frame 69 can be moved closer to the second limiting frame by rotating the screw 66. At this time, the first limiting frame 69 and the second limiting frame will clamp one end of the steel cable.

[0038] In another embodiment of the present invention: the quick-release mechanism includes a connecting frame 53 fixedly installed on the lifting block 61. The connecting frame 53 is L-shaped and has an installation groove 531.

[0039] A connecting plate 51 is fixedly connected to the bottom end of the connecting section 4, and a mounting plate 52 is fixedly connected to the bottom end of the connecting plate 51. The mounting plate 52 and the mounting groove 531 are both T-shaped, and a limit groove 54 is provided on both the mounting plate 52 and the connecting frame 53.

[0040] A tension sensor is installed between the connecting section 4 and the adjusting plate 3. When the intermediate plate 84 pulls the steel cable, the force on the connecting section 4 will be displayed by the tension sensor. The adjusting plate 3 can be slidably installed on the outer frame 2 and its position can be fixed by screws and other limiting mechanisms so that its height can be adjusted.

[0041] The T-shaped mounting groove 531 and the mounting plate 52 cooperate to install the connecting frame 53 at the bottom of the connecting plate 51, thereby enabling quick installation and disassembly. The limiting groove 54 can be threaded to connect the connecting frame 53 and the connecting plate 51 with screws to prevent slippage between them. When testing the steel cable, several steel cables can be pre-installed between several sets of first sliding frames 62 and second sliding frames 64 of the lifting block 61. Then, several steel cable bodies 7 can be quickly installed directly at the bottom of the connecting section 4 through the connecting frame 53.

[0042] In another embodiment of the present invention: a support plate 81 is fixedly installed on the outer frame 2, a connecting rod 83 is fixedly installed on the support plate 81, an intermediate plate 84 is fixedly installed on the connecting rod 83, a connecting strip 85 is fixedly installed on the intermediate plate 84, an outer variable strip 86 is fixedly installed on the connecting strip 85, a displacement strip 87 is fixedly installed on the outer variable strip 86, and an outer ring 88 is fixedly installed on the intermediate plate 84.

[0043] A slider 91 is slidably mounted on the turntable 82 along its radial direction. A circular block 92 is fixedly mounted on the slider 91. A clamping frame 94 is fixedly mounted on the circular block 92. A rotating frame 93 is rotatably mounted on the circular block 92.

[0044] A base plate 95 is fixedly installed at the bottom of the rotating frame 93, and a long strip 96 is fixedly installed on the base plate 95;

[0045] When testing is required, several steel cable bodies 7 are installed on the lifting block 61 via the first limiting frame 69 and the second limiting frame. Then, the lifting block 61 is installed below the connecting section 4 via a quick-release mechanism. At this time, the steel cable bodies 7 fall down due to gravity. The steel cable located in the middle of the lifting block 61 will fall into the middle of the turntable 82. A servo motor is installed on the outer frame 2, and the turntable 82 is driven by the servo motor to rotate. After the steel cable is installed, the servo motor can be started, driving the turntable 82 to rotate. As the turntable 82 rotates, it will drive the slider 91 on its surface to rotate. (Refer to...) Figure 2 and Figure 5 At this time, the turntable 82 rotates counterclockwise. As the turntable 82 rotates counterclockwise, the slider 91 rotates from the thin position of the outer ring 88 to the thick position. At this time, the slider 91 will move outward along the radial direction of the turntable 82, so that the strip 96 on the base plate 95 and the displacement strip 87 come into contact. At this time, the strip 96 will be pressed and move towards the center of the turntable 82. At the same time, as the strip 96 moves, it will drive the rotating frame 93 to rotate towards the clamping frame 94, so that the rotating frame 93 and the clamping frame 94 cooperate to clamp the steel cable.

[0046] Initially, the clamping frame 94 and the rotating frame 93 are in an open or closed state, which facilitates the rotating frame 93 passing over the bottom end of the steel cable in the middle of the turntable 82. As the rotating frame 93 passes over the bottom end of the steel cable, the slider 91 is pushed by the outer ring 88 and moves, thereby causing the rotating frame 93 to rotate. At the same time, the clamping frame 94 will also move closer to the right side of the steel cable and continuously fit together, so that when the rotating frame 93 rotates closer to the clamping frame 94, it will clamp the left side of the steel cable. Then, as the turntable 82 continues to rotate, the clamped steel cable will be continuously pulled downward to conduct a tensile strength test until it breaks after reaching the maximum tensile strength.

[0047] In another embodiment of the present invention: a displacement arc edge 881 is provided on the outer ring 88;

[0048] The outer ring 88 has a thin position and a thick position, and a displacement arc edge 881 is provided on the outer surface of the outer ring 88 to make the slider 91 move more smoothly from the thin position to the thick position of the outer ring 88.

[0049] In another embodiment of the present invention: the base plate 95 is L-shaped, and a return spring 98 is fixedly installed between the bottom end of the base plate 95 and the circular block 92;

[0050] Among them, reference Figure 5When the slider 91 is squeezed by the upper displacement arc edge 881 and moves outward along the radial direction of the turntable 82, the slider 91 will drive the round block 92, the clamping frame 94 and the rotating frame 93 to move outward. At this time, the long strip 96 will also approach the displacement strip 87, and as the turntable 82 rotates, the long strip 96 will also move towards the center position of the turntable 82 due to the displacement strip 87. At this time, since the base plate 95 is L-shaped and the long strip 96 is on the right side of the rotating frame 93's axis, as the long strip 96 moves downward, the rotating frame 93 will rotate to the right through the axis position, thereby cooperating with the clamping frame 94 to clamp the steel cable. The return spring 98 causes the long strip 96 and the outer displacement strip 86 to separate and push the rotating frame 93 to open again.

[0051] When the long strip 96 is attached to the outer strip 86 via the displacement strip 87, the outer strip 86 will ensure that the rotating frame 93 always clamps the steel cable.

[0052] In another embodiment of the present invention: the inner wall of the rotating frame 93 is provided with a plurality of spikes;

[0053] The spikes allow the rotating frame 93 and clamping frame 94 to better clamp the steel cable after they are combined.

[0054] When the rotating frame 93 and clamping frame 94 clamp the bottom end of the steel cable, as the turntable 82 rotates, the slider 91 follows the turntable 82 in a circular motion. As the turntable 82 rotates counterclockwise, the clamping frame 94 and rotating frame 93 will continuously tilt. At this time, the clamping frame 94 and rotating frame 93 will also pull the bottom end of the clamped steel cable to bend. After the steel cable bends, the pressure it exerts on the clamping frame 94 is greater, making it more difficult for it to detach.

[0055] In another embodiment of the present invention: the positioning rod 67 is L-shaped, and a first sliding groove 611 and a second sliding groove 612 are provided on the lifting block 61, and a vertical groove is provided at the connection position of the first sliding groove 611 and the second sliding groove 612.

[0056] An inner groove 613 is also provided on the entire block 61;

[0057] The first groove 611 and the second groove 612 form an N-shape through the vertical groove, while the inner groove 613 facilitates the vertical end of the positioning rod 67 to enter the lifting block 61.

[0058] Among them, reference Figures 7-8When the first sliding frame 62 and the second sliding frame 64 clamp the steel cable and place it into the lifting block 61, the vertical long arm end of the positioning rod 67 will enter the lifting block 61 through the inner groove 613, while the short arm end of the positioning rod 67 will first enter through the first sliding groove 611. As the short arm end of the positioning rod 67 moves to the leftmost end of the first sliding groove 611, the positioning rod 67 will restrict the position of the first sliding frame 62 and the second sliding frame 64 on it, so that the steel cable on it is located in the middle position of the turntable 82, until the turntable 93 and the clamping frame 94 cooperate to pull the middle steel cable. When the steel cable moves, it will cause the inner block 65 on the first sliding frame 62 and the second sliding frame 64 on the left to move down. At the same time, the positioning rod 67 on the first sliding frame 62 will be pressed down. At this time, the short arm end of the positioning rod 67 located in the vertical groove will move down into the second sliding groove 612. When the steel cable body 7 under test is broken, the first sliding frame 62 on the left will not be restricted by the positioning rod 67 on it, and will continue to move to the left. At this time, the second first sliding frame 62 on the left will slide towards the middle position of the lifting block 61, so that the steel cable on it moves to the middle position of the turntable 82.

[0059] The inner bottom walls of the first sliding frame 62 and the second sliding frame 64 can be provided with circular grooves, and the first spring 68 can be set in the circular grooves, so that when the inner block 65 moves down, the first spring 68 is compressed and enters the circular grooves, thereby not restricting the contact between the inner block 65 and the inner bottom wall of the first sliding frame 62.

[0060] In another embodiment of the present invention: a second spring 97 is fixedly installed between the top end of the slider 91 and the turntable 82;

[0061] Among them, reference Figure 5 When the slider 91 moves to the thin position of the outer ring 88, the second spring 97 will pull the slider 91 to move towards the center position of the turntable 82. At the same time, the long strip 96 will also move away from the surface of the outer strip 86. At this time, the reset spring 98 will pull the base plate 95 to move, thereby causing the rotating frame 93 to rotate and open.

[0062] In another embodiment of the present invention: the top end of the lifting block 61 is provided with a first inclined edge, and the bottom ends of the first sliding frame 62 and the second sliding frame 64 are provided with second inclined edges;

[0063] When the positioning rod 67 moves from the surface of the vertical groove to the second slide groove 612, the positioning rod 67 will no longer restrict the first slide frame 62 and the second slide frame 64 to slide to the left, so that the subsequent steel cable will automatically move forward when the previous steel cable is broken, so as to facilitate automatic and continuous tensile testing.

[0064] The positioning rod 67 is vertically slidably installed in the first sliding frame 62. When it enters the lifting block 61, the height of the short arm end is located in the first sliding groove 611. When the positioning rod 67 is in the first sliding frame 62, the friction between the positioning rod 67 and the first sliding frame 62 prevents the positioning rod 67 from sliding down freely due to gravity. It will only slide down into the second sliding groove 612 when the inner block 65 is pressed down.

[0065] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A continuous tensile strength testing device for steel cables, comprising a base (1) and an outer frame (2) disposed thereon, wherein an adjusting plate (3) is installed on the outer frame (2), and a connecting section (4) is installed on the adjusting plate (3), characterized in that, Also includes: A quick-release mechanism is provided on the connecting section (4); The lifting block (61) is installed at the bottom of the connecting section (4) via a quick-release mechanism. A first sliding frame (62) and a second sliding frame (64) are slidably installed on the lifting block (61). A top plate (63) is fixedly installed on the first sliding frame (62) and the second sliding frame (64). The first slide frame (62) and the second slide frame (64) are each vertically slidably installed with an inner block (65), and a steel cable body (7) is provided between the first slide frame (62) and the second slide frame (64). The positioning rod (67) is vertically mounted on the first sliding frame (62); The turntable (82) is mounted on the outer frame (2), and the rotation of the turntable (82) will take turns to test the tensile strength of several steel cable bodies (7) on the lifting block (61).

2. The continuous tensile strength testing device for steel cables according to claim 1, characterized in that, A screw (66) is spirally installed on the inner block (65) of the first slide frame (62), and a first limiting frame (69) is rotatably installed on one end of the screw (66) near the second slide frame (64), while a second limiting frame is fixedly installed on the surface of the inner block (65) of the second slide frame (64).

3. The continuous tensile strength testing device for steel cables according to claim 1, characterized in that, The quick-release mechanism includes a connecting frame (53) fixedly installed on the lifting block (61). The connecting frame (53) is L-shaped and has an installation groove (531). The bottom end of the connecting section (4) is fixedly connected to a connecting plate (51), and the bottom end of the connecting plate (51) is fixedly connected to a mounting plate (52). The mounting plate (52) and the mounting groove (531) are both T-shaped, and the mounting plate (52) and the connecting frame (53) are both provided with limit grooves (54).

4. The continuous tensile strength testing device for steel cables according to claim 1, characterized in that, A support plate (81) is fixedly installed on the outer frame (2), a connecting rod (83) is fixedly installed on the support plate (81), an intermediate plate (84) is fixedly installed on the connecting rod (83), a connecting strip (85) is fixedly installed on the intermediate plate (84), an outer variable strip (86) is fixedly installed on the connecting strip (85), a displacement strip (87) is fixedly installed on the outer variable strip (86), and an outer ring (88) is fixedly installed on the intermediate plate (84). A slider (91) is slidably mounted on the turntable (82) along its radial direction. A circular block (92) is fixedly mounted on the slider (91). A clamping frame (94) is fixedly mounted on the circular block (92). A rotating frame (93) is rotatably mounted on the circular block (92). A base plate (95) is fixedly installed at the bottom of the rotating frame (93), and a long strip (96) is fixedly installed on the base plate (95).

5. The continuous tensile strength testing device for steel cables according to claim 4, characterized in that, The outer ring (88) is provided with a displacement arc edge (881).

6. The continuous tensile strength testing device for steel cables according to claim 4, characterized in that, The base plate (95) is L-shaped, and a return spring (98) is fixedly installed between the bottom end of the base plate (95) and the round block (92).

7. The continuous tensile strength testing device for steel cables according to claim 4, characterized in that, The inner wall of the rotating frame (93) is provided with several spikes.

8. The continuous tensile strength testing device for steel cables according to claim 1, characterized in that, The positioning rod (67) is L-shaped, and a first sliding groove (611) and a second sliding groove (612) are provided on the lifting block (61), and a vertical groove is provided at the connection position of the first sliding groove (611) and the second sliding groove (612); The lifting block (61) is also provided with an inner groove (613).

9. The continuous tensile strength testing device for steel cables according to claim 4, characterized in that, A second spring (97) is fixedly installed between the top of the slider (91) and the turntable (82).

10. The continuous testing device for the tensile strength of steel cables according to claim 1, characterized in that, The top of the lifting block (61) is provided with a first inclined edge, and the bottom of the first sliding frame (62) and the second sliding frame (64) are provided with a second inclined edge.

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