Cable sample preparation device and cable combustion test equipment

Abstract

The utility model provides a cable sample preparation device which comprises a rotating shaft, a control motor used for driving the rotating shaft to rotate, a plurality of cable supporting pieces arranged on the rotating shaft in a circumferential array mode, and a cutting piece used for cutting cables. Each cable supporting piece comprises two telescopic rods arranged at intervals in the axial direction of the rotating shaft, a supporting rod arranged at the ends, away from the rotating shaft, of the telescopic rods and deviation preventing plates arranged at the two ends of the supporting rod in the axial direction, the supporting rod is used for winding a cable, the telescopic rods are arranged in a telescopic mode, and the deviation preventing plates are arranged at the two ends of the supporting rod in the axial direction. The supporting rod is provided with at least two positions with different distances from the rotating shaft, and the size of the anti-deviation plate is larger than the axial size of the supporting rod so that the cable can be limited. According to the cable sample preparation device and the cable combustion test equipment, automatic cutting of a specific number and length of cable sections can be realized, the accuracy of an experimental result is improved, and the labor intensity of personnel is reduced.

Description

Technical Field

[0001] This utility model relates to a cable sample preparation device and a cable combustion test equipment. Background Technology

[0002] The cable bundle burning test is an experiment conducted by vertically bundling sections of cable onto a burning rack and placing them in a burning chamber for combustion. This test aims to simulate the flame-retardant properties of wires and cables under burning conditions, ensuring that the products do not burn completely in a fire and quickly char to extinguish the flame.

[0003] The testers need to calculate the number of cables required for the bundled combustion test based on the cable specifications and the proportion of metal content inside. They then cut 2.5m or 3.5m long samples, arrange them on the combustion rack according to the test standard requirements, and subsequently adjust the propane and air flow to conduct the combustion test.

[0004] Currently, there is no suitable cable bundling and burning segmentation device, and it relies on the individual operation of inspection personnel. In particular, the number of samples for cable bundling tests for rail transit vehicles is basically 200, which is extremely time-consuming and labor-intensive, and can easily lead to occupational diseases.

[0005] In view of this, it is necessary to improve the existing cable sample preparation equipment to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a cable sample preparation device to solve the problems of time-consuming and labor-intensive manual cable cutting and potential errors in length and quantity.

[0007] To achieve the above objectives, this utility model provides a cable sample preparation device. The cable sample preparation device includes a rotating shaft, a control motor for driving the rotating shaft to rotate, a plurality of cable support members arranged in a circumferential array on the rotating shaft, and a cutting member for cutting the cable. Each cable support member includes two telescopic rods spaced apart along the axial direction of the rotating shaft, a support rod disposed at one end of the telescopic rod away from the rotating shaft, and anti-deviation plates disposed at both ends of the support rod along the axial direction. The support rod is used to wind the cable. The telescopic rod is telescopically oriented so that the support rod has at least two positions at different distances from the rotating shaft. The anti-deviation plate is larger than the axial dimension of the support rod to limit the cable.

[0008] As a further improvement of this utility model, the anti-deviation plate is a circular plate, and the anti-deviation plate is coaxially arranged with the support rod, and the diameter of the anti-deviation plate is larger than the diameter of the support rod.

[0009] As a further improvement of this utility model, the support rod has two different positions along the radial direction.

[0010] As a further improvement of this utility model, the number of cable support members is greater than or equal to four.

[0011] As a further improvement of this utility model, the cutting element is positioned below the rotating shaft.

[0012] As a further improvement of this utility model, the cutting component includes a lifting unit and a cutting wheel. The cutting wheel is disposed on the lifting unit, and the lifting unit is used to drive the cutting wheel to rise and fall.

[0013] As a further improvement of this utility model, the cable sample preparation device further includes a mounting base and two protective plates extending upward from the mounting base. The cutting element is disposed on the mounting base, the rotating shaft is rotatably connected to the protective plates, and the cutting element is located between the two protective plates.

[0014] As a further improvement of this utility model, the cable sample preparation device also includes a control unit, which is electrically connected to the control motor and the cutting component.

[0015] This utility model also provides a cable burning test device, which includes a combustion chamber and a cable sample preparation device as described above. The cable sample preparation device is used to cut the cable into cable segments of equal length, and the combustion chamber is provided with a combustion rack for fixing the cable segments.

[0016] The beneficial effects of this utility model are: the cable sample preparation device and cable combustion test equipment of this utility model can realize the automated cutting of specific quantities and lengths of cable segments, eliminate errors caused by human operation through automation, ensure that the length and quantity of cable segments meet the requirements, improve the accuracy of experimental results, and reduce the labor intensity of personnel. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0018] Figure 1 This is a schematic diagram of the cable sample preparation device of this utility model. Detailed Implementation

[0019] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0022] like Figure 1 As shown, the cable combustion test equipment of this utility model includes a combustion chamber and a cable sample preparation device 100.

[0023] The combustion chamber contains a combustion rack for securing cable segments. The cable bundle combustion test is conducted by vertically bundling cable segments onto the combustion rack and placing them inside the combustion chamber for combustion. This test aims to simulate the flame-retardant properties of wires and cables under combustion conditions, ensuring that the products do not burn completely in a fire and quickly char to extinguish the flame.

[0024] The cable sample preparation device 100 is used to cut the cable into segments of equal length. Existing combustion chambers can generally perform combustion tests on cable segments of 2.5m and 3.5m.

[0025] The cable sample preparation device 100 includes a rotating shaft 1, a drive motor 2 for driving the rotating shaft 1 to rotate, multiple cable support members 3 arranged in a circular array on the rotating shaft 1, a cutting member 4 for cutting the cable, a mounting base 5, two protective plates 6 extending upward from the mounting base 5, and a control unit 7.

[0026] The cutting component 4 is mounted on the mounting base 5, the rotating shaft 1 is rotatably connected to the protective plate 6, and the cutting component 4 is located between the two protective plates 6.

[0027] In this embodiment, the mounting base 5 is rectangular and mainly serves as a support. The protective plate 6 is triangular in shape, with its bottom end fixed to the mounting base 5 and its top end supporting the rotating shaft 1. The protective plate 6 shields the cutting piece 4 from both sides to prevent it from injuring workers.

[0028] The rotating shaft 1 is rotatable relative to the protective plate 6. The drive motor 2 is used to drive the rotating shaft 1 to rotate. In this embodiment, the drive motor can control the direction and angle of rotation of the rotating shaft 1.

[0029] The number of cable support members 3 is greater than or equal to four, and in this embodiment, it is eight. The cable support members 3 are used to support the cable and drive its rotation. The length of the cable rotation can be controlled according to the rotation angle of the rotating shaft 1. In this embodiment, by setting greater than or equal to four cable support members 3, it can be applied to the cutting of large cables, avoiding the inability to control the actual length of large cables due to their bending nature. By setting more cable support members 3, the gap can be reduced, allowing large cables to fit better onto the cable support members 3, thus improving cutting accuracy.

[0030] Each of the cable support members 3 includes two telescopic rods 32 spaced apart along the axial direction of the rotation axis 1, a support rod 31 disposed at the end of the telescopic rod 32 away from the rotation axis 1, and anti-deviation plates 33 disposed at both ends of the support rod 31 along the axial direction.

[0031] The support rod 31 is used to wind the cable. In this embodiment, the axis of the support rod 31 is parallel to the axis of the rotating shaft 1.

[0032] The telescopic rod 32 is extendable, allowing the support rod 31 to have at least two positions at different distances from the rotating shaft 1. In this embodiment, the support rod 31 has two different positions radially. When the distance between the support rod 31 and the rotating shaft 1 is small, it can be used to cut a 2.5m long cable; when the distance is large, it can be used to cut a 3.5m long cable. In this embodiment, only two cable lengths are needed, therefore the telescopic rod 32 is only provided with two telescopic lengths, reducing calculation errors.

[0033] The telescopic rod 32 can be telescopically extended or retracted, or it can be telescopically extended or retracted manually or by mechanical limiting.

[0034] The anti-deviation plate 33 is larger than the axial dimension of the support rod 31 to limit the cable.

[0035] In this embodiment, the anti-deviation plate 33 is a circular plate, and the anti-deviation plate 33 is coaxially arranged with the support rod 31. The diameter of the anti-deviation plate 33 is larger than the diameter of the support rod 31.

[0036] The cutting component 4 is positioned below the rotating shaft 1.

[0037] The cutting component 4 includes a lifting unit 42 and a cutting wheel 41. The cutting wheel 41 is mounted on the lifting unit 42, and the lifting unit 42 is used to drive the cutting wheel 41 to rise and fall.

[0038] In this embodiment, a cutting wheel 41 is used for cutting, which can achieve the cutting of multiple small cables or the cutting of large cables.

[0039] The control unit 7 is electrically connected to the drive motor 2 and the cutting component 4.

[0040] The cable sample preparation device 100 and cable combustion test equipment of this utility model are used as follows: The length and quantity of the cable segments to be tested are determined according to the experimental requirements. The control unit 7 or the operator adjusts the length of the telescopic rod 32 accordingly. The control unit 7 controls the drive motor 2 to work, causing the rotating shaft 1 and the cable support 3 to rotate a set number of times. The control unit 7 controls the lifting unit 42 to lift and controls the cutting wheel 41 to rotate, thereby cutting the cable to obtain the corresponding number and length of cable segments. The cable segments are then transferred by the operator or automated equipment, and then vertically bound to the combustion rack and placed in the combustion chamber for combustion.

[0041] The cable sample preparation device 100 and cable combustion test equipment of this utility model can realize the automated cutting of specific quantities and lengths of cable segments. By automating, the errors caused by human operation are eliminated, ensuring that the length and quantity of cable segments meet the requirements, improving the accuracy of experimental results, and reducing the labor intensity of personnel.

[0042] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0043] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A cable sample preparation apparatus, characterized in that: The cable sample preparation device includes a rotating shaft, a control motor for driving the rotating shaft to rotate, a plurality of cable support members arranged in a circumferential array on the rotating shaft, and a cutting member for cutting the cable. Each cable support member includes two telescopic rods spaced apart along the axial direction of the rotating shaft, a support rod disposed at one end of the telescopic rod away from the rotating shaft, and anti-deviation plates disposed at both ends of the support rod along the axial direction. The support rod is used to wind the cable. The telescopic rod is telescopically oriented so that the support rod has at least two positions at different distances from the rotating shaft. The anti-deviation plate is larger than the axial dimension of the support rod to limit the cable.

2. The cable sample preparation apparatus according to claim 1, characterized in that: The anti-deviation plate is a circular plate, and the anti-deviation plate is coaxially arranged with the support rod. The diameter of the anti-deviation plate is larger than the diameter of the support rod.

3. The cable sample preparation apparatus according to claim 1, characterized in that: The support rod has two different positions along the radial direction.

4. The cable sample preparation apparatus according to claim 1, characterized in that: The number of cable support components is greater than or equal to four.

5. The cable sample preparation apparatus according to claim 1, characterized in that: The cutting component is positioned below the rotating shaft.

6. The cable sample preparation apparatus according to claim 5, characterized in that: The cutting component includes a lifting unit and a cutting wheel. The cutting wheel is mounted on the lifting unit, which is used to raise and lower the cutting wheel.

7. The cable sample preparation apparatus according to claim 6, characterized in that: The cable sample preparation device further includes a mounting base and two protective plates extending upward from the mounting base. The cutting component is disposed on the mounting base, and the rotating shaft is rotatably connected to the protective plates. The cutting component is located between the two protective plates.

8. The cable sample preparation apparatus according to claim 1, characterized in that: The cable sample preparation device also includes a control unit, which is electrically connected to the control motor and the cutting component.

9. A cable burning test device, characterized in that: The cable combustion test equipment includes a combustion chamber and a cable sample preparation device as described in any one of claims 1-8. The cable sample preparation device is used to cut the cable into cable segments of equal length, and the combustion chamber is provided with a combustion rack for fixing the cable segments.

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