Wire and cable cross-linking test detection device and use method thereof
The wire and cable cross-linking test detection device addresses the inconsistency in force application using a control console, heating plate, and rotating structure to enhance test accuracy and ease of use.
Patent Information
- Application Number
- CN202111018993.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2021-09-01
- Publication Date
- 2024-12-06
- Estimated Expiration
- 2041-09-01
AI Technical Summary
Current cross-linking tests for wires and cables fail to determine the magnitude of the force applied by a handheld electric soldering iron, which affects the accuracy of the test results. The device is the ability to ensure that the force applied by a handheld electric soldering iron, which affects the accuracy of the test results. The device is the ability to ensure that the force applied by a handheld electric soldering iron, which affects the accuracy of the test results.
A wire and cable cross-linking test detection device with a control console, heating plate, force-applying assembly, and support assembly, which includes a sample fixing rod, load support rod, and rotating structure to apply a consistent force and ensure accurate test results.
The device ensures consistent force application in each test, improving the accuracy of cross-linking test results and facilitating easy operation by integrating a timer for precise timing.
Smart Images
Figure CN113758959B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of wire and cable performance testing, and in particular to a wire and cable cross-linking test detection device and a use method thereof. Background Art
[0002] At present, the automotive industry has increasingly higher requirements for the heat resistance and oil resistance of wires and cables. Irradiation can improve the heat resistance and oil resistance of wires and cables. The cross-linking test can quickly detect the degree of cross-linking of wires and cables after irradiation, so as to quickly evaluate the performance of wires and cables after irradiation. The current cross-linking test process is as follows: heat the electric soldering iron to a predetermined temperature, then hold the heat-insulating end of the electric soldering iron, and make the heated end of the electric soldering iron contact with the insulation of the wires and cables for a predetermined time, and evaluate the degree of cross-linking of the wires and cables by observing whether there are cracks in the contact area and whether the conductor is exposed. Summary of the invention
[0003] The inventors found that the current cross-linking test has the following problems: the force applied to the wires and cables by a handheld electric soldering iron cannot determine the magnitude of the force, nor can it ensure that the force applied each time in multiple tests on the same wires and cables is consistent, which affects the accuracy of the test results. Therefore, it is urgent to develop a cross-linking test detection device that has accurate test results and is easy to operate.
[0004] In view of the above problems, the present invention proposes a wire and cable cross-linking test detection device. The wire and cable cross-linking test detection device comprises: a control console and a heating plate, wherein the heating plate is located on one side of the control console, and the control console controls the temperature of the heating plate; an outer protective cover, wherein the outer protective cover comprises two side walls and a top arranged around the heating plate, wherein the two side walls are arranged opposite to each other, and the top is located on the side of the heating plate away from the control console; a force-applying assembly, wherein the force-applying assembly comprises a sample fixing rod, a load support rod and a load tray, wherein the load support rod passes through the top, and one end of the load support rod is connected to the sample fixing rod, and the other end is connected to the load tray, wherein the sample fixing rod and the load support rod form a T-shaped structure, and the sample fixing rod Located between the heating plate and the top, the orthographic projection of the load support rod on the heating plate is located in the central area of the orthographic projection of the load tray on the heating plate, and the load tray is used to place a load of a predetermined weight; a support assembly, the support assembly is located on the side of the top away from the heating plate, the support assembly includes a connecting rod, a supporting structure and a rotating structure, one end of the connecting rod is bent, and the other end is connected to the supporting structure and the rotating structure, the support structure is used to support the connecting rod, and the support assembly is configured to drive the rotating structure to rotate by rotating the connecting rod, so as to cause the force-applying assembly to move in a direction perpendicular to the heating plate.
[0005] Furthermore, the supporting structure includes two first circular plates, the rotating structure is a second circular plate, the second circular plate is located between the two first circular plates, the second circular plate and the first circular plate are arranged opposite each other, the two first circular plates are fixed on the top, the connecting rod passes through the first circular plate and the second circular plate, the connecting rod can rotate in the two first circular plates, the connecting rod is fixed in the second circular plate, the lowest points of the first circular plate and the second circular plate close to the top side are located on the same straight line, and the orthographic projection of the second circular plate on the heating plate is located within the orthographic projection range of the load tray on the heating plate.
[0006] Furthermore, the diameter of the second circular plate is consistent with the diameter of the two first circular plates, the diameter of the second circular plate is 30-40 mm, the diameter of the connecting rod is 5-6 mm, and on the plane where the second circular plate is located, the connecting rod is located on the side of the center of the second circular plate away from the top, and the line between the center of the connecting rod and the center of the second circular plate is perpendicular to the top, and the distance L1 between the center of the connecting rod and the center of the second circular plate is 0.4-0.6 times the radius of the second circular plate, and when the second circular plate is not rotated, the sample fixing rod is in contact with the heating plate.
[0007] Furthermore, a distance X between the highest point of the second circular plate away from the top and the load tray is 0-6 mm.
[0008] Furthermore, on the plane where the second circular plate is located, the distance between the center of the connecting rod and the lowest point of the second circular plate close to the top is H, and the distance between the center of the connecting rod and the highest point of the second circular plate away from the top is h, and H, h and X satisfy: HhX≥12mm.
[0009] Furthermore, the diameter of the second circular plate is larger than the diameter of the first circular plate, the diameter of the second circular plate is 40-55mm, the diameter of the connecting rod is 5-6mm, and on the plane where the second circular plate is located, the connecting rod is located on the side of the center of the second circular plate close to the top, and the line between the center of the connecting rod and the center of the second circular plate is perpendicular to the top, and the distance L2 between the center of the connecting rod and the center of the second circular plate is 0.3-0.7 times the radius of the second circular plate. When the second circular plate is not rotating, the load tray is in contact with the second circular plate, the distance Y between the sample fixing rod and the heating plate is greater than 0mm, and the diameter difference Z≥Y between the second circular plate and the first circular plate, and the top has a first through hole, and the orthographic projection of the second circular plate on the top is located in the first through hole.
[0010] Furthermore, the distance Y between the sample fixing rod and the heating plate is ≥12 mm.
[0011] Furthermore, the force-applying assembly further includes at least one pair of connecting plates, which are fixed on the load tray. In the direction of the intersection line of the top and the side wall, each pair of connecting plates are respectively located on both sides of the load tray, and the connecting plates have a long hollow portion, and each connecting plate has a pair of limiting members, which can slide on the connecting plates. Both ends of the wires and cables can respectively pass through the hollow portions of the connecting plates and be fixed by the limiting members, so that the wires and cables are bent around the sample fixing rod at a predetermined angle.
[0012] Furthermore, the force-applying assembly further comprises a balancing support rod, one end of which is connected to the load tray and the other end of which passes through the top, and the balancing support rod is located on a side of the load support rod away from the supporting assembly.
[0013] Furthermore, the console includes a timer.
[0014] The wire and cable cross-linking test detection device of the present invention has the following advantages:
[0015] 1. It can determine the magnitude of the force applied to the wires and cables, and ensure that the force applied each time in multiple tests of the same wires and cables is consistent, thereby improving the accuracy of the test results and being easy to operate;
[0016] 2. The console is equipped with a timer. The detection device has a high degree of integration. Timing through the timer in the console can further improve the accuracy of the test results.
[0017] In another aspect of the present invention, the present invention proposes a method for using the aforementioned wire and cable cross-linking test detection device. The method includes: using the console to control the heating plate to heat to a predetermined temperature; placing a load of a predetermined weight in the load tray; performing a cross-linking test on the wire and cable: rotating the connecting rod to rotate the rotating structure so that the force-applying component moves in a direction perpendicular to the heating plate, placing the wire and cable between the sample fixing rod and the heating plate, adjusting the distance between the sample fixing rod and the heating plate so that the distance between the sample fixing rod and the heating plate is consistent with the outer diameter of the wire and cable, and continuing to rotate the connecting rod so that the rotating structure does not contact the load tray, and starting the timing so that the wire and cable are in contact with the heating plate for a predetermined time; rotating the connecting rod so that the distance between the sample fixing rod and the heating plate is greater than the outer diameter of the wire and cable, and taking out the wire and cable. In this way, the magnitude of the force applied to the wire and cable can be determined, and the force applied each time in multiple tests of the same wire and cable can be guaranteed to be consistent, thereby improving the accuracy of the test results and being easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It shows a front view schematic diagram of a wire and cable cross-linking test detection device according to one embodiment of the present invention;
[0019] Figure 2 A schematic top view (Fig. (a)) and a schematic side view (Fig. (b)) of a partial structure of a force-applying assembly according to an embodiment of the present invention are shown;
[0020] Figure 3 A schematic front view of a stopper and a connecting plate according to an embodiment of the present invention is shown;
[0021] Figure 4 It shows a front view schematic diagram of a wire and cable cross-linking test detection device according to another embodiment of the present invention;
[0022] Figure 5 A schematic front view (Fig. (a)) and a schematic side view (Fig. (b)) of a support assembly according to an embodiment of the present invention are shown;
[0023] Figure 6 A schematic front view of a wire and cable cross-linking test detection device according to another embodiment of the present invention is shown;
[0024] Figure 7 It shows a front view schematic diagram of a wire and cable cross-linking test detection device according to one embodiment of the present invention when the sample fixing rod is in a raised state;
[0025] Figure 8A schematic front view of a wire and cable cross-linking test detection device according to an embodiment of the present invention is shown after the wire and cable are placed therein and the wire and cable are not in contact with the heating plate;
[0026] Fig. 9 A schematic front view of a wire and cable cross-linking test detection device according to an embodiment of the present invention is shown in a state where a cross-linking test is performed on a wire and cable;
[0027] Fig.10 A schematic front view of a wire and cable cross-linking test detection device according to another embodiment of the present invention is shown;
[0028] Fig.11 A schematic front view (Fig. (a)) and a schematic side view (Fig. (b)) of a support assembly according to yet another embodiment of the present invention are shown;
[0029] Fig.12 A schematic front view of a wire and cable cross-linking test detection device according to another embodiment of the present invention is shown after the wire and cable are placed therein and the wire and cable are not in contact with the heating plate;
[0030] Fig.13 A schematic front view of a wire and cable cross-linking test detection device according to another embodiment of the present invention is shown in a state of performing a cross-linking test on a wire and cable;
[0031] Fig.14 A schematic flow chart of a method for using a wire and cable cross-linking test detection device according to an embodiment of the present invention is shown.
[0032] Description of reference numerals:
[0033] 10: control console; 11: heating column; 20: heating plate; 31: side wall; 32: top; 33: bottom; 34: first through hole; 41: sample fixing rod; 42: load support rod; 43: load tray; 44: connecting plate; 45: hollow part; 46: limiter; 47: balance support rod; 48: nut; 51: first circular plate; 52: second circular plate; 53: connecting rod; 60: load; 70: wire and cable; 1: guide rail; 2: limit block; 3: screw; 4: intersection line of top and side wall. DETAILED DESCRIPTION
[0034] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.
[0035] The present invention provides a wire and cable cross-linking test detection device. In some embodiments of the present invention, reference Figure 1 The wire and cable cross-linking test detection device comprises: a console 10, a heating plate 20, an outer shield, a force-applying assembly and a support assembly. The heating plate 20 is located on one side of the console 10, and the console 10 controls the temperature of the heating plate 20. The outer shield comprises two side walls 31 and a top 32 arranged around the heating plate 20, the two side walls 31 are arranged opposite to each other, and the top 32 is located on the side of the heating plate 20 away from the console 10. The force-applying assembly comprises a sample fixing rod 41, a load supporting rod 42 and a load tray 43, the load supporting rod 42 passes through the top 32, and one end of the load supporting rod 42 is connected to the sample fixing rod 41, and the other end is connected to the load tray 43, the sample fixing rod 41 and the load supporting rod 42 form a T-shaped structure, the sample fixing rod 41 is located between the heating plate 20 and the top 32, the positive projection of the load supporting rod 42 on the heating plate 20 is located in the central area of the positive projection of the load tray 43 on the heating plate 20, and the load tray 43 is used to place a load of a predetermined weight. The support assembly is located on the side of the top 32 away from the heating plate 20, and the support assembly includes a connecting rod 53, a support structure (such as Figure 1 The first circular plate 51 shown in FIG. Figure 1 The second circular plate 52 is shown in the figure, one end of the connecting rod 53 is bent, and the other end is connected to the supporting structure and the rotating structure. The supporting structure is used to support the connecting rod 53. The supporting assembly is configured to drive the rotating structure to rotate by rotating the connecting rod 53, so that the force-applying assembly moves in a direction perpendicular to the heating plate 20.
[0036] The working process of the wire and cable cross-linking test detection device is as follows:
[0037] A load 60 of a predetermined weight is placed in the load tray 43, and the wire cable 70 is placed between the sample fixing rod 41 and the heating plate 20 (refer to Figure 8 ), rotate the connecting rod 53 to drive the rotating structure to rotate, so that the force-applying component moves in a direction perpendicular to the heating plate 20, adjust the distance between the sample fixing rod 41 and the heating plate 20, and make the distance between the sample fixing rod 41 and the heating plate 20 consistent with the outer diameter of the wire and cable 70, and then continue to rotate the connecting rod 53 so that the rotating structure is no longer in contact with the load tray 43 (refer to Fig. 9 ), and start timing, so that the wire and cable 70 is in contact with the heating plate 20 for a predetermined time. It should be noted that after the distance between the sample fixing rod and the heating plate is consistent with the outer diameter of the wire and cable, the two steps of "continue to rotate the connecting rod" and "start timing" are performed simultaneously.
[0038] When the wires and cables are in contact with the heating plate, the rotating structure is not in contact with the load tray, so the force applied to the wires and cables is the sum of the weight of the force-applying component and the weight of the load. Knowing the weight of the force-applying component and selecting a load of a predetermined weight, the magnitude of the force applied to the wires and cables can be determined, and the force applied each time in multiple tests of the same wire and cable can be guaranteed to be consistent, thereby improving the accuracy of the test results and facilitating operation.
[0039] The following is a detailed description of each part of the wire and cable cross-linking test detection device according to a specific embodiment of the present invention:
[0040] In some embodiments of the present invention, reference Figure 1 The console 10 and the heating plate 20 can be connected through the heating column 11, and the console 10 transfers heat to the heating plate 20 through the heating column 11 to control the heating plate 20 to reach a predetermined temperature. The console 10 has a temperature control area and a heating button. The temperature control area can input a predetermined temperature value and can display the actual temperature of heating. When heating, enter a predetermined temperature value in the temperature control area and turn on the heating button. When the actual temperature displayed in the temperature control area is the predetermined temperature value, the heating plate is heated to the predetermined temperature. The temperature accuracy of the console 10 is 0.1°C. There is no special restriction on the specific structure of the console, as long as the heating plate can be controlled to reach a predetermined temperature and meet the above-mentioned accuracy.
[0041] In some embodiments of the present invention, the working surface of the heating plate 20 may be a quadrilateral or a circle. More specifically, the working surface of the heating plate 20 may be a square with a side length of at least 150 mm. It should be noted that the "working surface of the heating plate" refers to the surface of the heating plate that is used to contact the wires and cables.
[0042] In some embodiments of the present invention, the outer shield includes two side walls 31 and a top 32 arranged around the heating plate 20, which can provide support for the force-applying component and the supporting component on the one hand, and reduce the risk of burns to the experimenter on the other hand. Figure 1 The outer shield may further include a bottom 33 , and the side wall 21 , the top 32 and the bottom 33 define an accommodation space, and the console 10 and the heating plate 20 are located in the above accommodation space.
[0043] In some specific embodiments of the present invention, the sample fixing rod 41 can be a test rod with a diameter of 6 mm. During the test, the experimenter can cut a wire and cable of a suitable length (such as 600 mm), hold one end of the wire and cable, pass the other end of the wire and cable through the gap between the sample fixing rod and the heating plate, and then fix the two ends of the wire and cable to make the wire and cable U-shaped and bend around the sample fixing rod at a predetermined angle.
[0044] In some embodiments of the present invention, reference Figure 2 ( Figure 2 (a) is a top view schematic diagram of the partial structure of the force-applying component. Figure 2 (b) in the figure is a side view schematic diagram of the partial structure of the force-applying assembly, the force-applying assembly further includes at least one pair of connecting plates 44 (only one pair of connecting plates is shown in the figure), the connecting plates 44 are fixed on the load tray 43, in the direction of the intersection line 4 of the top 32 and the side wall 31, each pair of connecting plates 44 is respectively located on both sides of the load tray 43, the connecting plates 44 have a long hollow portion 45, and each connecting plate 44 has a pair of limiters 46, the limiters 46 can slide on the connecting plates 44, the two ends of the wires and cables can pass through the hollow portions 45 of the connecting plates 44 respectively, and be fixed by the limiters 46, so that the wires and cables are bent around the sample fixing rod 41 at a predetermined angle. In this way, the wires and cables can be fixed on the detection device, and the fixed wires and cables are U-shaped and bent around the sample fixing rod at a predetermined angle. The limiter can slide on the connecting plate, so by adjusting the position of the limiter, the bending angle of the wires and cables around the sample fixing rod can be adjusted to meet different test requirements. By providing multiple pairs of connecting plates, multiple wires and cables with the same outer diameter can be tested simultaneously, thereby improving the test efficiency. The width of the hollow portion 45 can be no less than 8 mm, thereby accommodating wires and cables with different cross-sections.
[0045] The specific structure of the stopper is not particularly limited, as long as the stopper can slide on the connecting plate and fix the wires and cables. Figure 3 The limiting member may include a limiting block 2 and a screw 3, and the side of the connecting plate 44 may have a guide rail 1 (such as Figure 2 As shown in (b) in the figure), the longitudinal section of the connecting plate 44 is an "I"-shaped structure, the limit block 2 covers the T-shaped area of the connecting plate 44 and is clamped in the guide rail 1 of the connecting plate 44 (as shown in Figure 3 As shown), there is a gap between the inner surface of the stopper 2 and the T-shaped area of the connecting plate 44, so that the stopper 2 can slide on the connecting plate 44, and the screw 3 can fix the stopper 2 on the connecting plate 44, thereby fixing the wires and cables. It should be noted that the above-mentioned "longitudinal section of the connecting plate" refers to the longitudinal section cut from the area outside the hollow part in the direction of front view.
[0046] In some embodiments of the present invention, the load support rod 42 passes through the top 32 of the outer shield, and the top 32 can limit the load support rod 42 to move in a direction perpendicular to the heating plate 20. Figure 4 The load support rod 42 further passes through the nut 48A, and the nut 48A is fixed on the side of the top 32 away from the heating plate 20. The nut 48A and the top 32 jointly limit the movement of the load support rod 42 in a direction perpendicular to the heating plate 20, thereby improving the stability of the force-applying component when it moves.
[0047] In some embodiments of the present invention, reference Figure 4 The force-applying assembly further includes a balancing support rod 47, one end of which is connected to the load tray 43, and the other end of which passes through the top 32, and the balancing support rod 47 is located on the side of the load support rod 42 away from the support assembly. As a result, the force-applying assembly has good balance when moving, and the risk of the load tray tilting can be reduced when the support assembly moves the force-applying assembly. In this embodiment, one end of the balancing support rod 47 close to the heating plate 20 can be suspended, or connected to the sample fixing rod 41.
[0048] In other embodiments of the present invention, reference Figure 4 The balance support rod 47 further passes through the nut 48B, and the nut 48B is fixed on the side of the top 32 away from the heating plate 20. The nut 48B and the top 32 jointly limit the movement of the balance support rod 47 in a direction perpendicular to the heating plate 20.
[0049] It should be noted that when the force-applying assembly includes a connecting plate, a stopper and a balance support rod, the force applied to the wires and cables is the total weight of the load, the load tray, the load support rod, the sample fixing rod, the connecting plate, the stopper and the balance support rod. It can be understood by those skilled in the art that since the nuts 48A and 48B are fixed on the top 32, the weight of the nuts 48A and 48B is not applied to the wires and cables.
[0050] In some embodiments of the present invention, in the support assembly, one end of the connecting rod 53 is bent, and the other end is connected to the support structure and the rotating structure. The experimenter can hold the bent end of the connecting rod 53 and rotate the connecting rod 53 to drive the rotating structure to rotate, thereby causing the force-applying assembly to move in a direction perpendicular to the heating plate.
[0051] In some embodiments of the present invention, reference Figure 1The supporting structure may include two first circular plates 51, and the rotating structure is a second circular plate 52. The second circular plate 52 is located between the two first circular plates 51. The second circular plate 52 and the first circular plate 51 are arranged opposite to each other. The two first circular plates 51 are fixed on the top 32. The connecting rod 53 passes through the first circular plate 51 and the second circular plate 52. The connecting rod 53 can rotate in the two first circular plates 51. The connecting rod 53 is fixed in the second circular plate 52. The lowest points of the first circular plate 51 and the second circular plate 52 close to the top 32 are located on the same straight line. The orthographic projection of the second circular plate 52 on the heating plate 20 is located within the orthographic projection range of the load tray 43 on the heating plate 20. The connecting rod can rotate in the two first circular plates. The two first circular plates support the connecting rod. The connecting rod is fixed in the second circular plate. Therefore, when the connecting rod is rotated, the connecting rod can drive the second circular plate to rotate. The orthographic projection of the second circular plate on the heating plate is within the orthographic projection range of the load tray on the heating plate, thereby ensuring that the rotating second circular plate can contact the load tray, thereby enabling the force-applying component to move in a direction perpendicular to the heating plate.
[0052] According to some preferred embodiments of the present invention, Figure 1 The diameter of the second circular plate 52 can be consistent with the diameter of the two first circular plates 51, the diameter of the second circular plate 52 can be 30-40 mm, such as 30 mm, 32 mm, 35 mm, 38 mm, 40 mm, the diameter of the connecting rod 53 can be 5-6 mm, such as 5 mm, 5.2 mm, 5.5 mm, 5.8 mm, 6 mm, on the plane where the second circular plate 52 is located, the connecting rod 53 is located on the side of the center of the second circular plate 52 away from the top 32, and the line between the center of the connecting rod 53 and the center of the second circular plate 52 is perpendicular to the top 32 (reference Figure 5 (b) in Figure 5 (b) in FIG. 1 shows the first circular plate), the distance L1 between the center of the connecting rod 53 and the center of the second circular plate 52 (as shown in FIG. Figure 5 As shown in FIG. 1 ) is 0.4-0.6 times, such as 0.4 times, 0.5 times, and 0.6 times, of the radius of the second circular plate 52. When the second circular plate 52 is not rotating, the sample fixing rod 41 is in contact with the heating plate 20 (such as Figure 1 , Figure 4 and Figure 6 By setting the connecting rod at the upper half of the second circular plate, that is, the second circular plate rotates with a certain point of its upper half as the center, during the rotation process, the gap between the side of the second circular plate close to the top and the top gradually increases, and the side of the second circular plate away from the top gradually rises, and the rotating second circular plate contacts the load tray, thereby driving the load tray to rise, that is, driving the entire force-applying assembly to rise (refer to Figure 7). The second circular plate rotates around the center of the connecting rod, and L1 is set to 0.4-0.6 times the radius of the second circular plate 52, which is conducive to forming a suitable distance between the sample fixing rod and the heating plate.
[0053] The distance X between the highest point of the second circular plate 52 away from the top 32 and the load tray 43 (eg Figure 1 When the distance between the highest point of the second circular plate 52 away from the top 32 and the load tray 43 is 0 mm, that is, the second circular plate 52 is in contact with the load tray 43 (as shown in FIG. Figure 6 As shown in FIG. 1 , when the second circular plate 52 rotates, it directly drives the load tray 43 to rise. When there is a gap between the highest point of the second circular plate 52 away from the top 32 and the load tray 43 (as shown in FIG. 1 ), the load tray 43 is lifted up. Figure 1 As shown in the figure, the second circular plate 52 can only contact with the load tray 43 after rotating a certain angle. After contact, the load tray 43 is driven to rise under the continuous rotation of the second circular plate 52.
[0054] On the plane where the second circular plate 52 is located, the distance between the center of the connecting rod 53 and the lowest point of the second circular plate 52 close to the top 32 is H (eg Figure 5 The distance between the center of the connecting rod 53 and the highest point of the second circular plate 52 away from the top 32 is h (as shown in FIG. Figure 5 As shown), H, h and the X described above satisfy: HhX ≥ 12mm. That is, the highest distance that the sample fixing rod is lifted by rotating the second circular plate (the maximum distance between the sample fixing rod and the heating plate) is not less than 12mm. Therefore, the detection device can perform cross-linking tests on small-section and large-section wires and cables without being restricted by the cross-section of the wires and cables, and when the wires and cables pass through the gap between the sample fixing rod and the heating plate, the above distance can prevent the wires and cables from contacting the heating plate. It should be noted that the two first circular plates can be fixed on the top by welding. Since the second circular plate and the side of the first circular plate close to the top are on the same straight line, welding will cause a certain gap between the second circular plate and the top. The gap can be 1-2mm, which is convenient for the rotation of the second circular plate.
[0055] According to some other embodiments of the present invention, Fig.10 , the diameter of the second circular plate 52 can be greater than the diameter of the first circular plate 51, the diameter of the second circular plate 52 can be 40-55mm, such as 40mm, 42mm, 45mm, 48mm, 50mm, 52mm, 55mm, the diameter of the connecting rod 53 can be 5-6mm, such as 5mm, 5.2mm, 5.5mm, 5.8mm, 6mm, on the plane where the second circular plate 52 is located, the connecting rod 53 is located on the side of the center of the second circular plate 52 close to the top 32, and the line between the center of the connecting rod 53 and the center of the second circular plate 52 is perpendicular to the top 32 (reference Fig.11 (b) in Fig.11 (b) in FIG. 1 shows the first circular plate), the distance L2 between the center of the connecting rod 53 and the center of the second circular plate 52 (as shown in FIG. Fig.11 ) is 0.3-0.7 times of the radius of the second circular plate 52, such as 0.3 times, 0.4 times, 0.5 times, 0.6 times, and 0.7 times. When the second circular plate 52 is not rotating, the load tray 43 is in contact with the second circular plate 52, and the distance Y between the sample fixing rod 41 and the heating plate 20 (such as Fig.10 ) is greater than 0 mm, and the diameter difference Z between the second circular plate 52 and the first circular plate 51 (as shown Fig.11 As shown in (a) in FIG. 1 ), the top 32 has a first through hole 34 , and the orthographic projection of the second circular plate 52 on the top 32 is located in the first through hole 34 .
[0056] The connecting rod 53 is located on the side of the center of the second circular plate 52 close to the top 32. By arranging the connecting rod at the lower half of the second circular plate, that is, the second circular plate rotates with a certain point of the lower half as the center, during the rotation process, the side of the second circular plate close to the top gradually rotates into the first through hole, and the side of the second circular plate away from the top gradually descends. The rotating second circular plate contacts the load tray, and there is a gap between the sample fixing rod and the heating plate, so that the load tray can be driven to descend, that is, the entire force-applying assembly can be driven to descend (refer to Fig.12 ).
[0057] The distance Y between the sample fixing rod 41 and the heating plate 20 is greater than 0 mm, and further, Y is not less than 12 mm. Thus, the detection device can perform cross-linking tests on wires and cables with small and large cross sections without being restricted by the cross-section of the wires and cables. When the wires and cables pass through the gap between the sample fixing rod and the heating plate, the above distance can prevent the wires and cables from contacting the heating plate.
[0058] The diameter difference Z between the second circular plate 52 and the first circular plate 51 is ≥ Y, thereby ensuring that the maximum distance that the sample fixing rod descends is Y, that is, during the descent of the sample fixing rod, the load tray will not contact the first circular plate. In other words, the first circular plate will not block the descent of the load tray, and further will not block the descent of the sample fixing rod.
[0059] The top 32 has a first through hole 34 , and the orthographic projection of the second circular plate 52 on the top 32 is located in the first through hole 34 , so that during the rotation of the second circular plate, the first through hole can provide an accommodating space for the second circular plate.
[0060] The second circular plate rotates around the center of the connecting rod, and L2 is set to be 0.3-0.7 times the radius of the second circular plate 52, which is conducive to forming a suitable distance between the sample fixing rod and the heating plate.
[0061] It should be noted that, in addition to the above structures, any structure that satisfies the requirement of "the rotating structure can be driven to rotate by rotating the connecting rod so as to cause the force-applying component to move in a direction perpendicular to the heating plate" is within the scope of the present invention.
[0062] In some embodiments of the present invention, the material constituting the force applying assembly and the supporting assembly includes stainless steel.
[0063] In some embodiments of the present invention, the console 10 further includes a timer. Thus, the detection device has a high degree of integration, and the accuracy of the test results can be further improved by timing with the timer in the console. Specifically, the console can have a timing button, and when timing is required, the timing button can be turned on.
[0064] In another aspect of the present invention, the present invention provides a method for using the aforementioned wire and cable crosslinking test detection device. Fig.14 , the method comprising:
[0065] S100: Use the console to control the heating plate to heat to a predetermined temperature
[0066] In this step, first turn on the power switch of the console, then enter the predetermined temperature value in the temperature control area of the console, and finally turn on the heating button to start heating. When the actual temperature displayed in the temperature control area reaches the predetermined temperature value, the heating plate is heated to the predetermined temperature.
[0067] S200: Place a load of a predetermined weight in the load tray
[0068] In this step, a load with a certain weight (such as a weight) is selected according to the test requirements, and the sum of the weight of the load and the weight of the force-applying component is the value required by the test.
[0069] It should be noted that the order of steps S100 and S200 is not particularly limited, that is, the heating plate is heated first and then the load is placed, or the load is placed first and then the heating plate is heated.
[0070] S300: Cross-linking test for wires and cables
[0071] In this step, the connecting rod is rotated to rotate the rotating structure so that the force-applying component moves in a direction perpendicular to the heating plate, and the wires and cables are placed between the sample fixing rod and the heating plate, and the distance between the sample fixing rod and the heating plate is adjusted so that the distance between the sample fixing rod and the heating plate is consistent with the outer diameter of the wires and cables, and the connecting rod is continued to be rotated so that the rotating structure does not contact the load tray, and the timing is started so that the wires and cables are in contact with the heating plate for a predetermined time. The above operation process is simple, and the magnitude of the force applied to the wires and cables can be determined, and the force applied each time in multiple tests of the same wires and cables can be guaranteed to be consistent, thereby improving the accuracy of the test results.
[0072] S400: Rotate the connecting rod to make the distance between the sample fixing rod and the heating plate larger than the outer diameter of the wire and cable, and take out the wire and cable.
[0073] In this step, the connecting rod 53 is rotated so that the distance between the sample fixing rod 41 and the heating plate 20 is greater than the outer diameter of the wire and cable 70. The wire and cable 70 is taken out and the surface condition of the contact area between the wire and cable 70 and the heating plate 20 is observed, that is, whether there are cracks in the contact area and whether there is any exposed conductor.
[0074] The following describes in detail the process of cross-linking test of wires and cables according to a specific embodiment of the present invention:
[0075] For a structure in which the connecting rod is located in the upper half of the second circular plate, the diameters of the second circular plate and the first circular plate are the same, and when the second circular plate is not rotating, the sample fixing rod is in contact with the heating plate, and the load tray is not in contact with the second circular plate (such as Figure 1 As shown in FIG. 1 ): First, the connecting rod 53 is rotated to drive the second circular plate 52 to rotate, and the gap between the side of the second circular plate 52 close to the top 32 and the top 32 gradually increases, and the side of the second circular plate 52 away from the top 32 gradually rises, and the rotating second circular plate 52 contacts the load tray 43. The continued rotation of the second circular plate 52 drives the load tray 43 to gradually rise, and then drives the sample fixing rod 41 to rise, so that a gap is generated between the sample fixing rod 41 and the heating plate 20 (as shown in FIG. 1 ). Figure 7 shown).
[0076] Then, hold one end of the wire and cable, pass the other end through the gap between the sample fixing rod 41 and the heating plate 20, and then pass the two ends of the wire and cable through the hollow parts of the connecting plates on both sides, and use the limiter to fix the two ends of the wire and cable to make the wire and cable U-shaped. By adjusting the position of the limiter, the wire and cable are bent around the sample fixing rod 41 at a predetermined angle. (For example, Figure 8 As shown, Figure 8 Only the portion of the electric wire and cable 70 between the sample fixing rod 41 and the heating plate 20 is shown, and the other portions are not shown).
[0077] Then, the connecting rod 53 is rotated continuously to adjust the distance between the sample fixing rod 41 and the heating plate 20 so that the distance between the sample fixing rod 41 and the heating plate 20 is consistent with the outer diameter of the wire and cable 70, and the connecting rod 53 is rotated continuously so that the second circular plate 52 is not in contact with the load tray 43 (such as Fig. 9 As shown), and turn on the timing button to start timing, so that the wire cable 70 is in contact with the heating plate 20 for a predetermined time.
[0078] Finally, rotate the connecting rod 53 so that the distance between the sample fixing rod 41 and the heating plate 20 is larger than the outer diameter of the wire and cable 70, take out the wire and cable 70, and observe the surface condition of the contact area between the wire and cable 70 and the heating plate 20, that is, observe whether there are cracks in the contact area and whether there is any exposed conductor.
[0079] The connecting rod is located at the lower half of the second circular plate, the diameter of the second circular plate is larger than the diameter of the first circular plate, and when the second circular plate is not rotating, the sample fixing rod is not in contact with the heating plate, and the load tray is in contact with the second circular plate (such as Fig.10 As shown): First, hold one end of the wire and cable, and pass the other end through the gap between the sample fixing rod 41 and the heating plate 20, and then pass the two ends of the wire and cable through the hollow parts of the connecting plates on both sides respectively, and use the limiters to fix the two ends of the wire and cable to make the wire and cable U-shaped, and by adjusting the position of the limiters, the wire and cable can be bent around the sample fixing rod 41 at a predetermined angle.
[0080] Then, the connecting rod 53 is rotated to drive the second circular plate 52 to rotate, and the side of the second circular plate 52 close to the top 32 gradually rotates into the first through hole 34, and the side of the second circular plate 52 away from the top 32 gradually descends, thereby lowering the load tray 43 and further lowering the sample fixing rod 41 (such as Fig.12 As shown, Fig.12 Only the portion of the wire and cable 70 between the sample fixing rod 41 and the heating plate 20 is shown, and the other portions are not shown). The distance between the sample fixing rod 41 and the heating plate 20 is adjusted to make the distance between the sample fixing rod 41 and the heating plate 20 consistent with the outer diameter of the wire and cable 70, and the connecting rod 53 is continuously rotated to make the second circular plate 52 not in contact with the load tray 43 (such as Fig.13 As shown), and turn on the timing button to start timing, so that the wire cable 70 is in contact with the heating plate 20 for a predetermined time.
[0081] Finally, rotate the connecting rod 53 so that the distance between the sample fixing rod 41 and the heating plate 20 is larger than the outer diameter of the wire and cable 70, take out the wire and cable 70, and observe the surface condition of the contact area between the wire and cable 70 and the heating plate 20, that is, observe whether there are cracks in the contact area and whether there is any exposed conductor.
[0082] In the description of the present invention, the orientation or position relationship indicated by the terms "upper" and "lower" etc. is based on the orientation or position relationship shown in the drawings and is only for the convenience of describing the present invention rather than requiring the present invention to be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on the present invention.
[0083] In the description of this specification, the description with reference to the terms "one embodiment", "another embodiment", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment are included in at least one embodiment of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory. In addition, it should be noted that in this specification, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated.
[0084] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.
Claims
1. A wire and cable cross-linking test detection device, characterized in that: include: A control console and a heating plate, wherein the heating plate is located at one side of the control console, and the control console controls the temperature of the heating plate; An outer shield, the outer shield comprising two side walls and a top arranged around the heating plate, the two side walls being arranged opposite to each other, and the top being located at a side of the heating plate away from the console; A force-applying assembly, the force-applying assembly comprising a sample fixing rod, a load supporting rod and a load tray, the load supporting rod passing through the top, one end of the load supporting rod being connected to the sample fixing rod, and the other end being connected to the load tray, the sample fixing rod and the load supporting rod forming a T-shaped structure, the sample fixing rod being located between the heating plate and the top, the orthographic projection of the load supporting rod on the heating plate being located at the center area of the orthographic projection of the load tray on the heating plate, and the load tray being used to place a load of a predetermined weight; A support assembly, wherein the support assembly is located on a side of the top away from the heating plate, the support assembly comprises a connecting rod, a supporting structure and a rotating structure, one end of the connecting rod is bent, and the other end is connected to the supporting structure and the rotating structure, the supporting structure is used to support the connecting rod, and the support assembly is configured to drive the rotating structure to rotate by rotating the connecting rod, so as to cause the force-applying assembly to move in a direction perpendicular to the heating plate.
2. The wire and cable cross-linking test detection device according to claim 1, characterized in that: The supporting structure includes two first circular plates, and the rotating structure is a second circular plate. The second circular plate is located between the two first circular plates. The second circular plate and the first circular plate are arranged opposite to each other. The two first circular plates are fixed on the top. The connecting rod passes through the first circular plate and the second circular plate. The connecting rod can rotate in the two first circular plates. The connecting rod is fixed in the second circular plate. The lowest points of the first circular plate and the second circular plate close to the top side are located on the same straight line, and the orthographic projection of the second circular plate on the heating plate is located within the orthographic projection range of the load tray on the heating plate.
3. The wire and cable cross-linking test detection device according to claim 2, characterized in that: The diameter of the second circular plate is consistent with the diameter of the two first circular plates, the diameter of the second circular plate is 30-40 mm, and the diameter of the connecting rod is 5-6 mm. On the plane where the second circular plate is located, the connecting rod is located on the side of the center of the second circular plate away from the top, and the line between the center of the connecting rod and the center of the second circular plate is perpendicular to the top, and the distance L1 between the center of the connecting rod and the center of the second circular plate is 0.4-0.6 times the radius of the second circular plate, and when the second circular plate is not rotated, the sample fixing rod is in contact with the heating plate.
4. The wire and cable cross-linking test detection device according to claim 3, characterized in that: A distance X between the highest point of the second circular plate away from the top and the load tray is 0-6 mm.
5. The wire and cable cross-linking test detection device according to claim 4, characterized in that: On the plane where the second circular plate is located, the distance between the center of the connecting rod and the lowest point of the second circular plate close to the top is H, and the distance between the center of the connecting rod and the highest point of the second circular plate away from the top is h, and H, h and X satisfy: HhX≥12mm.
6. The wire and cable cross-linking test detection device according to claim 2, characterized in that: The diameter of the second circular plate is greater than that of the first circular plate, the diameter of the second circular plate is 40-55 mm, and the diameter of the connecting rod is 5-6 mm. On the plane where the second circular plate is located, the connecting rod is located on a side of the center of the second circular plate close to the top, and the line between the center of the connecting rod and the center of the second circular plate is perpendicular to the top, the distance L2 between the center of the connecting rod and the center of the second circular plate is 0.3-0.7 times the radius of the second circular plate, when the second circular plate is not rotating, the load tray is in contact with the second circular plate, the distance Y between the sample fixing rod and the heating plate is greater than 0 mm, and the diameter difference Z between the second circular plate and the first circular plate is greater than or equal to Y, The top has a first through hole, and the orthographic projection of the second circular plate on the top is located in the first through hole.
7. The wire and cable cross-linking test detection device according to claim 6, characterized in that: The distance Y between the sample fixing rod and the heating plate is ≥12 mm.
8. The wire and cable cross-linking test detection device according to claim 1, characterized in that: The force-applying assembly further includes at least one pair of connecting plates, which are fixed on the load tray. In the direction of the intersection line of the top and the side wall, each pair of connecting plates are respectively located on both sides of the load tray. The connecting plates have a long hollow portion, and each connecting plate has a pair of limiting members, which can slide on the connecting plates. Both ends of the wires and cables can respectively pass through the hollow portions of the connecting plates and be fixed by the limiting members, so that the wires and cables are bent around the sample fixing rod at a predetermined angle.
9. The wire and cable cross-linking test detection device according to claim 1, characterized in that: The force-applying assembly further comprises a balancing support rod, one end of which is connected to the load tray and the other end of which passes through the top. The balancing support rod is located on a side of the load support rod away from the supporting assembly.
10. The wire and cable cross-linking test detection device according to claim 1, characterized in that: The console includes a timer.
11. A method for using the wire and cable cross-linking test detection device according to any one of claims 1 to 10, characterized in that: include: Using the control console to control the heating plate to heat to a predetermined temperature; placing a load of a predetermined weight in the load tray; Performing a cross-linking test on the wires and cables: rotating the connecting rod to rotate the rotating structure so that the force-applying assembly moves in a direction perpendicular to the heating plate, placing the wires and cables between the sample fixing rod and the heating plate, adjusting the distance between the sample fixing rod and the heating plate so that the distance between the sample fixing rod and the heating plate is consistent with the outer diameter of the wires and cables, and continuing to rotate the connecting rod so that the rotating structure does not contact the load tray, and starting timing so that the wires and cables are in contact with the heating plate for a predetermined time; The connecting rod is rotated to make the distance between the sample fixing rod and the heating plate larger than the outer diameter of the wire and cable, and the wire and cable are taken out.