CN216669798U - Wire and cable cross-linking test detection device - Google Patents
Wire and cable cross-linking test detection device Download PDFInfo
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- CN216669798U CN216669798U CN202122099629.4U CN202122099629U CN216669798U CN 216669798 U CN216669798 U CN 216669798U CN 202122099629 U CN202122099629 U CN 202122099629U CN 216669798 U CN216669798 U CN 216669798U
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Abstract
The utility model discloses a wire and cable crosslinking test detection device. The detection device includes: the heating plate is positioned on one side of the control console, and the control console controls the temperature of the heating plate; the outer shield comprises a side wall and a top which are arranged around the heating plate; the force application assembly comprises a sample fixing rod, a load supporting rod and a load tray, the load supporting rod penetrates through the top, one end of the load supporting rod is connected with the sample fixing rod, the other end of the load supporting rod is connected with the load tray, the sample fixing rod and the load supporting rod form a T shape, and the sample fixing rod is positioned between the heating plate and the top; the supporting component is located one side of the top far away from the heating plate, the supporting component comprises a connecting rod, a supporting structure and a rotating structure, one end of the connecting rod is bent, the other end of the connecting rod is connected with the supporting structure and the rotating structure, the supporting structure supports the connecting rod, the rotating structure is rotated through the rotating connecting rod, and the force application component moves in the direction perpendicular to the heating plate. The detection device is used for carrying out a cross-linking test, and the test result is accurate and easy to operate.
Description
Technical Field
The utility model relates to the field of wire and cable performance testing, in particular to a wire and cable crosslinking test detection device.
Background
At present, the requirements of the automobile industry on the performances of temperature resistance, oil resistance and the like of the wire and the cable are higher and higher, and the performances of temperature resistance, oil resistance and the like of the wire and the cable can be improved by an irradiation means. The crosslinking degree of the irradiated wire and cable can be rapidly detected through a crosslinking test, so that the performance of the irradiated wire and cable can be rapidly evaluated. The current cross-linking test procedure is as follows: heating the electric soldering iron to a preset temperature, then holding the heat insulation end of the electric soldering iron by hand, enabling the heating end of the electric soldering iron to be in insulation contact with the electric wire and cable for a preset time, and evaluating the cross-linking degree of the electric wire and cable by observing whether a contact area has cracks or not and whether a conductor is exposed or not.
SUMMERY OF THE UTILITY MODEL
The inventors found that the following problems exist with the current crosslinking test: acting force is applied to the electric wire and cable through the handheld electric soldering iron, the magnitude of the acting force cannot be determined, the consistency of the acting force applied to the electric wire and cable in multiple tests of the same kind cannot be guaranteed, and the accuracy of a test result is affected. Therefore, it is highly desirable to develop a cross-linking test detection device with accurate test results and easy operation.
Aiming at the problems, the utility model provides a wire and cable crosslinking test detection device. The wire and cable crosslinking test detection device comprises: the heating plate is positioned on one side of the console, and the console controls the temperature of the heating plate; the outer shield comprises two side walls and a top, the two side walls are arranged around the heating plate in an opposite mode, and the top is located on one side, away from the console, of the heating plate; the force application assembly comprises a sample fixing rod, a load supporting rod and a load tray, the load supporting rod penetrates through the top, one end of the load supporting rod is connected with the sample fixing rod, the other end of the load supporting rod is connected with the load tray, the sample fixing rod and the load supporting rod form a T-shaped structure, the sample fixing rod is located between the heating plate and the top, the orthographic projection of the load supporting 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 for placing a load with a preset weight; the supporting component is located the top is kept away from one side of hot plate, the supporting component includes connecting rod, bearing structure and revolution mechanic, connecting rod one end is crooked, the other end with bearing structure with revolution mechanic links to each other, bearing structure is used for supporting the connecting rod, the supporting component is configured as through rotatory the connecting rod can drive revolution mechanic is rotatory, so that the perpendicular to is taken place to the application of force subassembly the removal of hot plate direction, the application of force subassembly with the component material of supporting component includes the stainless steel.
Furthermore, the supporting structure comprises 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 plates are arranged in a right-to-right mode, the two first circular plates are fixedly arranged on the top, the connecting rod penetrates through the first circular plates and the second circular plates, the connecting rod can rotate in the two first circular plates, the connecting rod is fixedly arranged in the second circular plate, the lowest points of the first circular plates and the second circular plates, which are close to one side of the top, are located on the same straight line, and the orthographic projection of the second circular plates on the heating plate is located in the orthographic projection range of the load tray on the heating plate.
Furthermore, the diameter of the second circular plate is consistent with the diameters of the two first circular plates, the diameter of the second circular plate is 30-40mm, the diameter of the connecting rod is 5-6mm, the connecting rod is located on one side, away from the top, of the circle center of the second circular plate on the plane where the second circular plate is located, a connecting line between the circle center of the connecting rod and the circle center of the second circular plate is perpendicular to the top, and the distance L between the circle center of the connecting rod and the circle center of the second circular plate is equal to the distance L between the circle center of the second circular plate and the circle center of the second circular plate1Is 0.4 to 0.6 times the radius of the second circular plate, and the sample fixing lever is in contact with the heating plate when the second circular plate is not rotated.
Further, the distance X between the highest point of the side of the second circular plate far away from the top and the load tray is 0-6 mm.
Further, on the plane where the second circular plate is located, a distance between the circle center of the connecting rod and the lowest point of the second circular plate on the side close to the top is H, a distance between the circle center of the connecting rod and the highest point of the second circular plate on the side far away from the top is H, and H, H and X satisfy the following conditions: H-H-X is more than or equal to 12 mm.
Furthermore, the diameter of the second circular plate is larger than that of the first circular plate, the diameter of the second circular plate is 40-55mm, the diameter of the connecting rod is 5-6mm, the connecting rod is located on one side, close to the top, of the circle center of the second circular plate on the plane where the second circular plate is located, a connecting line between the circle center of the connecting rod and the circle center of the second circular plate is perpendicular to the top, and the distance L between the circle center of the connecting rod and the circle center of the second circular plate is equal to that L between the circle center of the connecting rod and the circle center of the second circular plate2The radius of the second circular plate is 0.3-0.7 times of the radius of the second circular plate, when the second circular plate does not rotate, the load tray is in contact with the second circular plate, the distance Y between the sample fixing rod and the heating plate is more than 0mm, the diameter difference Z between the second circular plate and the first circular plate is more than or equal to Y, the top is provided with a first through hole, and the orthographic projection of the second circular plate on the top is positioned in the first through hole.
Furthermore, the distance Y between the sample fixing rod and the heating plate is more than or equal to 12 mm.
Further, the force application assembly further comprises at least one pair of connecting plates, the connecting plates are fixed on the load tray, each pair of connecting plates are located on two sides of the load tray in the direction of the intersecting line of the top and the side wall, each connecting plate is provided with a long-strip-shaped hollow part, each connecting plate is provided with a pair of limiting parts, the limiting parts can slide on the connecting plates, two ends of an electric wire can respectively penetrate through the hollow parts of the connecting plates and are fixed through the limiting parts, and the electric wire is bent by a preset angle around the sample fixing rod.
Further, the force application assembly further comprises a balance support rod, one end of the balance support rod is connected with the load tray, the other end of the balance support rod penetrates through the top, and the balance support rod is located on one side, far away from the support assembly, of the load support rod.
Further, the console includes a timer.
The wire and cable crosslinking test detection device has the following advantages:
1. the size of the acting force applied to the electric wire and the electric cable can be determined, the acting force applied to the same electric wire and the electric cable in each time in multiple tests can be ensured to be consistent, the accuracy of the test result is improved, and the operation is easy;
2. the control console is provided with the timer, the integration level of the detection device is high, and the accuracy of the test result can be further improved by timing through the timer in the control console.
Drawings
FIG. 1 shows a schematic front view of a wire and cable cross-linking test detection device according to an embodiment of the present invention;
FIG. 2 shows a schematic top view (FIG. (a)) and a schematic side view (FIG. (b)) of a portion of a force application assembly in accordance with one embodiment of the present invention;
FIG. 3 illustrates a schematic front view of a limiting member and a connecting plate according to an embodiment of the utility model;
FIG. 4 shows a schematic front view of a wire and cable crosslinking test detection device according to another embodiment of the present invention;
FIG. 5 shows a schematic front view (FIG. (a)) and a schematic side view (FIG. (b)) of a support assembly according to one embodiment of the utility model;
FIG. 6 is a schematic front view of a wire and cable crosslinking test detection device according to yet another embodiment of the present invention;
FIG. 7 is a schematic front view showing a wire and cable crosslinking test detecting apparatus according to an embodiment of the present invention in a state where a sample-fixing lever is lifted;
FIG. 8 is a schematic front view showing a cross-linking test detecting apparatus for electric wire and cable according to an embodiment of the present invention, after the electric wire and cable is put in, and the electric wire and cable is not in contact with a heating plate;
FIG. 9 is a schematic front view of a cross-linking test detecting apparatus for electric wire and cable according to an embodiment of the present invention in a cross-linking test state of the electric wire and cable;
FIG. 10 shows a schematic front view of a wire and cable cross-linking test detection apparatus according to yet another embodiment of the present invention;
FIG. 11 shows a schematic front view (FIG. (a)) and a schematic side view (FIG. (b)) of a support assembly according to yet another embodiment of the utility model;
FIG. 12 is a schematic front view showing a cross-linking test detecting apparatus for electric wire and cable according to still another embodiment of the present invention, after the electric wire and cable is put in, and the electric wire and cable is not in contact with a heating plate;
FIG. 13 is a schematic front view of a wire and cable crosslinking test detecting apparatus according to still another embodiment of the present invention in a state of performing a crosslinking test on a wire and cable;
fig. 14 shows a schematic flow chart of a method for using the wire and cable crosslinking test detection device according to an embodiment of the utility model.
Description of reference numerals:
10: a console; 11: heating the column; 20: heating plates; 31: a side wall; 32: a top portion; 33: a bottom portion; 34: a first through hole; 41: a sample fixing rod; 42: a load support bar; 43: a load tray; 44: a connecting plate; 45: a hollow-out section; 46: a limiting member; 47: balancing the supporting rod; 48: a nut; 51: a first circular plate; 52: a second circular plate; 53: a connecting rod; 60: a load; 70: a wire cable; 1: a guide rail; 2: a limiting block; 3: a screw; 4: the intersection of the top and sidewalls.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
The utility model provides a wire and cable cross-linking test detection device. In some embodiments of the present invention, referring to fig. 1, the wire and cable crosslinking test detection apparatus comprises: console 10, hot plate 20, outer guard, application of force subassembly and supporting component. Wherein, hot plate 20 is located one side of control cabinet 10, and control cabinet 10 control hot plate 20's temperature, and the outer jacket is including two lateral walls 31 and the top 32 that encircle hot plate 20 setting, and two lateral walls 31 are just to setting up, and top 32 is located hot plate 20 and keeps away from one side of control cabinet 10. The force application assembly includes a sample fixing rod 41, a load supporting rod 42 and a load tray 43, the load supporting rod 42 penetrates the top 32, one end of the load supporting rod 42 is connected with the sample fixing rod 41, the other end is connected with 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 positioned between the heating plate 20 and the top 32, the orthographic projection of the load supporting rod 42 on the heating plate 20 is positioned in the central area of the orthographic projection of the load tray 43 on the heating plate 20, and the load tray 43 is used for placing a load with a preset weight. The support assembly is located on a side of the top portion 32 away from the heating plate 20, the support assembly includes a connecting rod 53, a support structure (e.g., a first circular plate 51 shown in fig. 1) and a rotation structure (e.g., a second circular plate 52 shown in fig. 1), one end of the connecting rod 53 is bent, the other end of the connecting rod 53 is connected to the support structure and the rotation structure, the support structure is used for supporting the connecting rod 53, the support assembly is configured to rotate the rotation structure by rotating the connecting rod 53, so that the force application assembly moves in a direction perpendicular to the heating plate 20, and the force application assembly and the support assembly are made of stainless steel.
The working process of the wire and cable crosslinking test detection device is as follows:
the load 60 of a predetermined weight is put in the load tray 43, the electric wire 70 is put between the sample fixing lever 41 and the heating plate 20 (refer to fig. 8), the connecting rod 53 is rotated to drive the rotation structure to rotate, the force application component is moved in a direction perpendicular to the heating plate 20, the distance between the sample fixing lever 41 and the heating plate 20 is adjusted, after the distance between the sample fixing lever 41 and the heating plate 20 is made to be consistent with the outer diameter of the electric wire 70, the connecting rod 53 is continuously rotated to make the rotation structure not to contact with the load tray 43 (refer to fig. 9), and the timing is started to make the electric wire 70 contact with the heating plate 20 for a predetermined time. It should be noted that, after the distance between the sample fixing lever and the heating plate is matched with the outer diameter of the electric wire cable, the two steps of "continuing to rotate the connecting lever" and "starting timing" are performed simultaneously.
The rotating structure does not contact the load tray when the wire cable contacts the heating plate, and thus, the force applied to the wire cable is the sum of the weight of the force application assembly and the weight of the load. The weight of the known force application assembly can determine the magnitude of the acting force applied to the electric wire and cable by selecting the load with the preset weight, and the force applied to the electric wire and cable in the same type can be ensured to be consistent each time in multiple tests, so that the accuracy of the test result is improved, and the operation is easy.
The following describes the details of the parts of the wire and cable crosslinking test detecting device according to the specific embodiment of the present invention:
in some embodiments of the present invention, referring to fig. 1, the console 10 and the heating plate 20 may be connected through a 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 a predetermined temperature. The console 10 has a temperature control section for inputting a predetermined temperature value and displaying an actual temperature of heating, and a heating button. When heating, the preset temperature value is input in the temperature control area, and the heating button is turned on, when the actual temperature displayed in the temperature control area is the preset temperature value, the heating plate is heated to the preset temperature. The temperature accuracy of the console 10 is 0.1 ℃. The specific structure of the console is not particularly limited as long as the heating panel can be controlled to a predetermined temperature and the above accuracy is satisfied.
In some embodiments of the present invention, the working surface of the heating plate 20 may be a quadrangle or a circle. More specifically, the working surface of the heating plate 20 may be a square having a side length of at least 150 mm. The "working surface of the heating plate" refers to a surface of the heating plate for contacting with the electric wire.
In some embodiments of the present invention, the outer shield includes two sidewalls 31 and a top 32 disposed around the heating plate 20, which can provide support for the force application component and the support component, and can reduce the risk of scalding the experimenter. In some embodiments of the present invention, referring to fig. 1, the outer shield may further include a bottom 33, and the sidewall 21, the top 32, and the bottom 33 define a receiving space in which the console 10 and the heating panel 20 are located.
In some embodiments of the present invention, the sample holding rod 41 may be a test bar with a diameter of 6 mm. In the test process, an experimenter can intercept a wire and cable with a proper length (such as 600mm), hold one end of the wire and cable, penetrate the other end of the wire and cable through a gap between the sample fixing rod and the heating plate, then fix the two ends of the wire and cable, enable the wire and cable to be in a U shape, and bend around the sample fixing rod by a preset angle.
In some embodiments of the present invention, referring to fig. 2 (a) is a schematic top view of a partial structure of a force application assembly, and fig. 2 (b) is a schematic side view of the partial structure of the force application assembly), the force application assembly further includes at least one pair of connection plates 44 (only one pair of connection plates is shown in the figure), the connection plates 44 are fixed on the load tray 43, each pair of connection plates 44 is respectively located on both sides of the load tray 43 in a direction of an intersection line 4 of the top portion 32 and the side wall 31, the connection plates 44 have an elongated hollow portion 45, and each connection plate 44 has a pair of limiting members 46, the limiting members 46 can slide on the connection plates 44, both ends of the electric wire can respectively pass through the hollow portions 45 of the connection plates 44, and are fixed by the limiting members 46, so that the electric wire can be bent around the sample fixing rod 41 by a predetermined angle. Therefore, the electric wire and the electric cable can be fixed on the detection device, and the fixed electric wire and the electric cable are U-shaped and are bent by a preset angle around the sample fixing rod. The locating part can slide on the connecting plate, consequently, through the position of adjusting the locating part, the crooked angle of adjustable wire and cable around sample dead lever to satisfy different test requirements. The multiple pairs of connecting plates are arranged, so that the multiple wires and cables with the same outer diameter can be tested simultaneously, and the testing efficiency is improved. The width of the hollowed-out portion 45 may be not less than 8mm, thereby facilitating accommodation of wires and cables of different cross sections.
The specific structure of the stopper is not particularly limited as long as the stopper can slide on the connection plate and can fix the electric wire and the cable. For example, referring to fig. 3, the limiting member may include a limiting block 2 and a screw 3, a side surface of the connecting plate 44 may have a guide rail 1 (as shown in (b) of fig. 2), a longitudinal section of the connecting plate 44 is made to be an i-shaped structure, the limiting block 2 covers a T-shaped region of the connecting plate 44 and is clamped in the guide rail 1 of the connecting plate 44 (as shown in fig. 3), and an inner surface of the limiting block 2 and the T-shaped region of the connecting plate 44 have a gap so that the limiting block 2 slides on the connecting plate 44, and the screw 3 may fix the limiting block 2 on the connecting plate 44, thereby fixing the electric wire and cable. The "vertical cross section of the connecting plate" is a vertical cross section taken from a region other than the hollow portion in a front view direction.
In some embodiments of the present invention, the load support rod 42 extends through the top portion 32 of the outer shield, and the top portion 32 limits the load support rod 42 from moving in a direction perpendicular to the heater plate 20. In other embodiments of the present invention, referring to fig. 4, the load support rod 42 further extends through a nut 48A, the nut 48A is fixed on a side of the top portion 32 away from the heating plate 20, and the nut 48A and the top portion 32 cooperate to 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 application assembly during movement.
In some embodiments of the present invention, referring to fig. 4, the force application assembly further comprises a balance support rod 47, one end of the balance support rod 47 is connected to the load tray 43, the other end extends through the top 32, and the balance support rod 47 is located on a side of the load support rod 42 away from the support assembly. Therefore, the force application component has good balance when moving, and the risk of the load tray inclining can be reduced when the support component enables the force application component to move. In this embodiment, one end of the balance support rod 47 near the heating plate 20 may be suspended, or may be connected to the sample fixing rod 41.
In other embodiments of the present invention, referring to fig. 4, the balance support rod 47 further extends through a nut 48B, the nut 48B is fixed to a side of the top portion 32 away from the heating plate 20, and the nut 48B and the top portion 32 cooperate to restrict the balance support rod 47 from moving in a direction perpendicular to the heating plate 20.
It should be noted that, when the force application assembly includes the connection plate, the limiting member and the balance support rod, the acting force applied to the electric wire and the electric cable is the total weight of the load, the load tray, the load support rod, the sample fixing rod, the connection plate, the limiting member and the balance support rod. Those skilled in the art will appreciate that the weight of the nuts 48A and 48B is not applied to the wire cable because the nuts 48A and 48B are fixed to the top 32.
In some embodiments of the present invention, in the supporting assembly, one end of the connecting rod 53 is bent, and the other end of the connecting rod 53 is connected to the supporting structure and the rotating structure, so that an experimenter can hold the bent end of the connecting rod 53 to rotate the rotating structure by rotating the connecting rod 53, thereby moving the force applying assembly in a direction perpendicular to the heating plate.
In some embodiments of the present invention, referring to fig. 1, the supporting structure may include two first circular plates 51, 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 is opposite to the first circular plates 51, the two first circular plates 51 are fixed on the top portion 32, the connecting rod 53 penetrates through the first circular plates 51 and the second circular plates 52, the connecting rod 53 is rotatable 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 plates 51 and the second circular plates 52 on the sides close to the top portion 32 are located on the same straight line, and 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 take place to rotate in two first plectanes, and two first plectanes play the supporting role to the connecting rod, and the connecting rod sets firmly in the second plectane, and from this, when rotatory connecting rod, the connecting rod can drive the second plectane and rotate. The orthographic projection of the second circular plate on the heating plate is positioned in the orthographic projection range of the load tray on the heating plate, so that the second circular plate which rotates can be ensured to be in contact with the load tray, and the force application component can move along the direction vertical to the heating plate.
According to some preferred embodiments of the present invention, referring to fig. 1, the diameter of the second circular plate 52 may correspond to two first circlesThe diameters of the plates 51 are the same, the diameter of the second circular plate 52 may be 30-40mm, such as 30mm, 32mm, 35mm, 38mm, 40mm, the diameter of the connecting rod 53 may 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 away from the top portion 32, and the connecting line between the center of the connecting rod 53 and the center of the second circular plate 52 is perpendicular to the top portion 32 (refer to (b) in fig. 5, the first circular plate is not shown in fig. 5), and the distance L between the center of the connecting rod 53 and the center of the second circular plate 52 is not shown in fig. 5, and L1(as shown in fig. 5) is 0.4-0.6 times, such as 0.4 times, 0.5 times, 0.6 times the radius of the second circular plate 52, and when the second circular plate 52 is not rotated, the sample fixing lever 41 is in contact with the heating plate 20 (as shown in fig. 1, 4, and 6). Through setting up the connecting rod in the first half of second plectane, the second plectane rotates with certain point of its first half as the center promptly, and in rotatory process, the second plectane is close to the space between one side and the top of top and increases gradually, and the one side that the second plectane kept away from the top rises gradually, and rotatory second plectane and load tray contact to can drive the load tray and rise, drive the whole application of force subassembly and rise promptly (refer to fig. 7). The second circular plate rotates around the circle center of the connecting rod to rotate the L1Setting the radius of the second circular plate 52 to 0.4-0.6 times facilitates forming a proper distance between the sample fixing rod and the heating plate.
The distance X (shown in fig. 1) between the highest point of the second circular plate 52 on the side away from the top 32 and the load tray 43 may be 0-6 mm. When the distance between the highest point of the second circular plate 52 on the side away from the top 32 and the load tray 43 is 0mm, that is, the second circular plate 52 contacts the load tray 43 (as shown in fig. 6), the second circular plate 52 directly lifts the load tray 43 when rotating. When there is a gap between the highest point of the second circular plate 52 far from the top 32 and the load tray 43 (as shown in fig. 1), the second circular plate 52 rotates a certain angle to contact the load tray 43, and then the second circular plate 52 continues to rotate to drive the load tray 43 to ascend.
On the plane of the second circular plate 52, the distance between the center of the connecting rod 53 and the lowest point of the second circular plate 52 on the side close to the top portion 32 is H (as shown in fig. 5), the distance between the center of the connecting rod 53 and the highest point of the second circular plate 52 on the side far from the top portion 32 is H (as shown in fig. 5), H, H and X described above satisfy: H-H-X is more than or equal to 12 mm. That is, the maximum distance (the maximum distance between the sample fixing lever and the heating plate) by which the sample fixing lever is lifted by rotating the second circular plate is not less than 12mm, whereby the test apparatus can perform a cross-linking test on the electric wire and cable having a small cross-section and a large cross-section without being limited by the cross-section of the electric wire and cable, and the above distance can prevent the electric wire and cable from contacting the heating plate when the electric wire and cable passes through the gap between the sample fixing lever and the heating plate. It should be noted that two first circular plates can be fixed on the top by welding, and since the second circular plate and the first circular plate are on the same straight line on the side close to the top, the welding will make a certain gap between the second circular plate and the top, and the gap can be 1-2mm, which is convenient for the second circular plate to rotate.
According to other embodiments of the present invention, referring to fig. 10, the diameter of the second circular plate 52 may be larger than the diameter of the first circular plate 51, the diameter of the second circular plate 52 may be 40-55mm, such as 40mm, 42mm, 45mm, 48mm, 50mm, 52mm, 55mm, the diameter of the connection rod 53 may 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 connection rod 53 is located at one side of the center of the second circular plate 52 close to the top portion 32, and the line between the center of the connection rod 53 and the center of the second circular plate 52 is perpendicular to the top portion 32 (refer to (b) in fig. 11, the first circular plate is not shown in fig. 11), and the distance L between the center of the connection rod 53 and the center of the second circular plate 52 is perpendicular to the top portion 32 (refer to (b) in fig. 11), the first circular plate is not shown in fig. 11), and the distance L between the center of the connection rod 53 and the center of the second circular plate 522(as shown in FIG. 11) is 0.3-0.7 times, such as 0.3 times, 0.4 times, 0.5 times, 0.6 times, 0.7 times the radius of the second circular plate 52, when the second circular plate 52 is not rotated, the load tray 43 contacts the second circular plate 52, the distance Y (as shown in FIG. 10) between the sample fixing rod 41 and the heating plate 20 is greater than 0mm, and the diameter difference Z (as shown in FIG. 11A) between the second circular plate 52 and the first circular plate 51 is ≧ Y, the top portion 32 has the first through hole 34, and the orthographic projection of the second circular plate 52 on the top portion 32 is located in the first through hole 34.
Wherein, the connecting rod 53 is located the centre of a circle of second plectane 52 and is close to one side of top 32, through setting up the connecting rod in the lower half of second plectane, and the second plectane rotates with certain point of its lower half as the center promptly, and in rotatory process, one side that the second plectane is close to the top rotates gradually to first through-hole in, and one side that the top was kept away from to the second plectane descends gradually, rotatory second plectane and load tray contact, and there is the space between sample dead lever and the hot plate, thereby can drive the load tray and descend, drive whole application of force subassembly to descend promptly (refer to fig. 12).
The distance Y between the sample fixing lever 41 and the heating plate 20 is greater than 0mm, and further, Y is not less than 12mm, whereby the inspection apparatus can perform a cross-linking test on electric wires and cables of small cross-section as well as large cross-section without being limited by the cross-section of the electric wires and cables, and the above distance can prevent the electric wires and cables from contacting the heating plate when the electric wires and cables pass through the gap between the sample fixing lever and the heating plate.
The diameter difference Z between the second circular plate 52 and the first circular plate 51 is larger than or equal to Y, so that the maximum distance for the sample fixing rod to descend is ensured to be Y, namely, the load tray does not contact with the first circular plate in the process of descending the sample fixing rod, in other words, the first circular plate does not block the descending of the load tray, and further the descending of the sample fixing rod is not blocked.
The top portion 32 has a first through hole 34, and an orthographic projection of the second circular plate 52 on the top portion 32 is located in the first through hole 34, so that the first through hole can provide a containing space for the second circular plate during the rotation of the second circular plate.
The second circular plate rotates around the circle center of the connecting rod to rotate the L2The radius of the second circular plate 52 is set to be 0.3 to 0.7 times, which is beneficial to forming a proper distance between the sample fixing rod and the heating plate.
It should be noted that, in addition to the above structures, the structure of "the rotating structure can be driven to rotate by rotating the connecting rod so as to move the force application component along the direction perpendicular to the heating plate" is all within the scope of the present invention.
In some embodiments of the present invention, the console 10 further includes a timer. Therefore, the detection device is high in integration level, and the accuracy of the test result can be further improved by timing through the timer in the console. Specifically, the console may have a time button, and the time button may be turned on when the time needs to be counted.
For ease of understanding, the following is a brief description of the method of use of the detection device of the present invention:
referring to fig. 14, the method includes:
s100: heating the heating plate to a predetermined temperature by using a control console
In the step, firstly, a power switch of the console is turned on, then a preset temperature value is input in a temperature control area of the console, finally, a heating button is turned on to start heating, and when the actual temperature displayed in the temperature control area reaches the preset temperature value, the heating plate is heated to the preset temperature.
S200: placing a load of a predetermined weight in a load tray
In this step, a load (e.g., a weight) having a weight is selected according to the test requirement, and the sum of the weight of the load and the weight of the force application member may be a value required for the test.
It should be noted that the sequence of steps S100 and S200 is not particularly limited, and the heating plate may be heated first and then the load is placed, or the load may be placed first and then the heating plate is heated.
S300: cross-linking test of wire and cable
In this step, the connecting rod is rotated to rotate the rotary structure so that the force application assembly moves in a direction perpendicular to the direction of the heating plate, the electric wire and the cable are placed between the sample fixing rod and the heating plate, the distance between the sample fixing rod and the heating plate is adjusted to be consistent with the outer diameter of the electric wire and the cable, the connecting rod is continuously rotated to keep the rotary structure out of contact with the load tray, timing is started, and the electric wire and the cable are in contact with the heating plate for a predetermined time. The operation process is simple, the magnitude of the acting force applied to the electric wire and the electric cable can be determined, the acting force applied to the electric wire and the electric cable in the same kind can be ensured to be consistent every time in multiple tests, and the accuracy of the test result is improved.
S400: rotating the connecting rod to make the distance between the sample fixing rod and the heating plate greater than the outer diameter of the wire and cable, and taking out the wire and cable
In this step, the connecting rod 53 is rotated to make the distance between the sample fixing rod 41 and the heating plate 20 larger than the outer diameter of the electric wire 70, the electric wire 70 is taken out, and the surface state of the contact area of the electric wire 70 and the heating plate 20, that is, whether the contact area has cracks and whether the conductor is exposed, is observed.
The following detailed description of the process of performing the cross-linking test on the electric wire and cable according to the specific embodiment of the present invention:
the connecting rod is positioned at the upper half part of the second circular plate, the diameters of the second circular plate and the first circular plate are consistent, and when the second circular plate is not rotated, the sample fixing rod is contacted with the heating plate, and the load tray is not contacted with the second circular plate (as shown in figure 1): first, the connecting rod 53 is rotated to drive the second circular plate 52 to rotate, the gap between the top portion 32 and the side of the second circular plate 52 close to the top portion 32 is gradually increased, the side of the second circular plate 52 far from the top portion 32 is gradually raised, the rotated second circular plate 52 contacts with the load tray 43, the load tray 43 is gradually raised by the continuous rotation of the second circular plate 52, and further the sample fixing rod 41 is raised, so that a gap is generated between the sample fixing rod 41 and the heating plate 20 (as shown in fig. 7).
Then, one end of the electric wire or cable is held by hand, and the other end of the electric wire or cable passes through a gap between the sample fixing rod 41 and the heating plate 20, and then both ends of the electric wire or cable pass through the hollow portions of the connecting plates on both sides, and the both ends of the electric wire or cable are fixed by the position limiting members, so that the electric wire or cable is in a U shape, and the electric wire or cable is bent around the sample fixing rod 41 by a predetermined angle by adjusting the position of the position limiting members. (as shown in fig. 8, fig. 8 shows only a portion of the electric wire 70 between the sample-fixing rod 41 and the heating plate 20, and the other portions are not shown).
Subsequently, the connection lever 53 is continuously rotated to adjust the distance between the sample fixing lever 41 and the heating plate 20 so that the distance between the sample fixing lever 41 and the heating plate 20 is identical to the outer diameter of the electric wire cable 70, the connection lever 53 is continuously rotated to keep the second circular plate 52 out of contact with the load tray 43 (as shown in fig. 9), and the timer button is turned on to start timing so that the electric wire cable 70 is in contact with the heating plate 20 for a predetermined time.
Finally, the connecting rod 53 is rotated to make the distance between the sample fixing rod 41 and the heating plate 20 larger than the outer diameter of the electric wire 70, the electric wire 70 is taken out, and the surface state of the contact area of the electric wire 70 and the heating plate 20, that is, whether the contact area has cracks or not and whether the conductor is exposed or not, is observed.
A structure in which the connection rod is located on the lower half portion of the second circular plate, the diameter of the second circular plate is larger than that of the first circular plate, and when the second circular plate is not rotated, the sample fixing rod does not contact the heating plate, and the load tray contacts the second circular plate (as shown in fig. 10): firstly, one end of the electric wire and cable is held by hand, the other end of the electric wire and cable penetrates through a gap between the sample fixing rod 41 and the heating plate 20, then the two ends of the electric wire and cable respectively penetrate through the hollow parts of the connecting plates at the two sides, the two ends of the electric wire and cable are fixed by using the limiting part, the electric wire and cable is made to be U-shaped, and the electric wire and cable is bent by a preset angle around the sample fixing rod 41 by adjusting the position of the limiting part.
Subsequently, the connecting rod 53 is rotated to rotate the second circular plate 52, the side of the second circular plate 52 close to the top portion 32 is gradually rotated into the first through hole 34, the side of the second circular plate 52 far from the top portion 32 is gradually lowered to lower the load tray 43, and further, the sample fixing lever 41 is lowered (as shown in fig. 12, fig. 12 shows only a portion of the electric wire cable 70 between the sample fixing lever 41 and the heating plate 20, and other portions are not shown), the distance between the sample fixing lever 41 and the heating plate 20 is adjusted to make the distance between the sample fixing lever 41 and the heating plate 20 coincide with the outer diameter of the electric wire cable 70, and the connecting rod 53 is continuously rotated to make the second circular plate 52 not contact with the load tray 43 (as shown in fig. 13), and the timer button is turned on to start timing, and the electric wire cable 70 is made to contact with the heating plate 20 for a predetermined time.
Finally, the connecting rod 53 is rotated to make the distance between the sample fixing rod 41 and the heating plate 20 larger than the outer diameter of the electric wire 70, the electric wire 70 is taken out, and the surface state of the contact area of the electric wire 70 and the heating plate 20, that is, whether the contact area has cracks or not and whether the conductor is exposed or not, is observed.
In the description of the present invention, the terms "upper", "lower", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention but do not require that the present invention must be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description herein, references to the description of "one embodiment," "another embodiment," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment is included in at least one embodiment of the utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction. In addition, it should be noted that the terms "first" and "second" in this specification are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to imply that the number of indicated technical features is high.
Although embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are exemplary and not to be construed as limiting the present invention, and that changes, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. The utility model provides a wire and cable cross-linking test detection device which characterized in that includes:
the heating plate is positioned on one side of the console, and the console controls the temperature of the heating plate;
the outer shield comprises two side walls and a top, the two side walls are arranged around the heating plate in an opposite mode, and the top is located on one side, away from the console, of the heating plate;
the force application assembly comprises a sample fixing rod, a load supporting rod and a load tray, the load supporting rod penetrates through the top, one end of the load supporting rod is connected with the sample fixing rod, the other end of the load supporting rod is connected with the load tray, the sample fixing rod and the load supporting rod form a T-shaped structure, the sample fixing rod is located between the heating plate and the top, the orthographic projection of the load supporting 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 for placing a load with a preset weight;
the supporting component is located the top is kept away from one side of hot plate, the supporting component includes connecting rod, bearing structure and revolution mechanic, connecting rod one end is crooked, the other end with bearing structure with revolution mechanic links to each other, bearing structure is used for supporting the connecting rod, the supporting component is configured as through rotatory the connecting rod can drive revolution mechanic is rotatory, so that the perpendicular to is taken place to the application of force subassembly the removal of hot plate direction, the application of force subassembly with the component material of supporting component includes the stainless steel.
2. The wire and cable crosslinking test detection apparatus of claim 1, wherein the support structure comprises two first circular plates, the rotation 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 plates are disposed opposite to each other, the two first circular plates are fixed on the top, the connecting rod penetrates through the first circular plates and the second circular plates, 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 plates and the second circular plates on the sides close to the top 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 apparatus for testing crosslinking test of electric wire and cable according to claim 2, wherein the diameter of said second circular plate is identical to the diameter of said two first circular plates, the diameter of said second circular plate is 30-40mm, the diameter of said connecting rod is 5-6mm,
on the plane where the second circular plate is located, the connecting rod is located on one side, away from the top, of the circle center of the second circular plate, a connecting line between the circle center of the connecting rod and the circle center of the second circular plate is perpendicular to the top, and the distance L between the circle center of the connecting rod and the circle center of the second circular plate1Is 0.4 to 0.6 times the radius of the second circular plate, and the sample fixing lever is in contact with the heating plate when the second circular plate is not rotated.
4. The apparatus of claim 3, wherein the distance X between the highest point of the second circular plate far away from the top and the load tray is 0-6 mm.
5. The wire and cable crosslinking test detection device of claim 4, wherein on the plane of the second circular plate, the distance between the center of the connecting rod and the lowest point of the second circular plate on the side 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 on the side far from the top is H, H, H and X satisfy: H-H-X is more than or equal to 12 mm.
6. The wire and cable crosslinking test detecting device of claim 2, wherein 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,
on the plane where the second circular plate is located, the connecting rod is located on one side, close to the top, of the circle center of the second circular plate, a connecting line between the circle center of the connecting rod and the circle center of the second circular plate is perpendicular to the top, and the distance L between the circle center of the connecting rod and the circle center of the second circular plate2Is a stand forThe radius of the second circular plate is 0.3-0.7 times, when the second circular plate is not rotated, the load tray is contacted with the second circular plate, the distance Y between the sample fixing rod and the heating plate is more than 0mm, and the diameter difference Z between the second circular plate and the first circular plate is more than or equal to Y,
the top portion has a first through hole, and an orthographic projection of the second circular plate on the top portion is located in the first through hole.
7. The wire and cable crosslinking test detection device of claim 6, wherein the distance Y between the sample fixing rod and the heating plate is not less than 12 mm.
8. The apparatus of claim 1, wherein the force applying assembly further comprises at least a pair of connecting plates, the connecting plates are fixed on the load tray, each pair of connecting plates are respectively located at two sides of the load tray in the direction of the intersection line of the top and the side wall, the connecting plates have an elongated hollow portion, and each connecting plate has a pair of stoppers thereon, the stoppers are slidable on the connecting plate, two ends of the wire and cable can respectively pass through the hollow portion of the connecting plate and are fixed by the stoppers, so that the wire and cable can be bent around the sample fixing rod by a predetermined angle.
9. The apparatus of claim 1, wherein the force applying assembly further comprises a balance support rod, one end of the balance support rod is connected to the load tray, the other end of the balance support rod penetrates through the top, and the balance support rod is located on a side of the load support rod away from the support assembly.
10. The apparatus of claim 1, wherein the console comprises a timer.
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| CN202122099629.4U CN216669798U (en) | 2021-09-01 | 2021-09-01 | Wire and cable cross-linking test detection device |
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| CN202122099629.4U CN216669798U (en) | 2021-09-01 | 2021-09-01 | Wire and cable cross-linking test detection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113758959A (en) * | 2021-09-01 | 2021-12-07 | 北京斯普乐电线电缆有限公司 | Wire and cable crosslinking test detection device and use method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113758959A (en) * | 2021-09-01 | 2021-12-07 | 北京斯普乐电线电缆有限公司 | Wire and cable crosslinking test detection device and use method thereof |
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