Cable performance test clamping device
By designing a cable performance test clamping device including arc clamping plates, servo reducer motors and springs, the serious problem of cable deformation in the prior art is solved, and a more accurate and efficient cable tensile testing is achieved.
Patent Information
- Application Number
- CN202420741055.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-11
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-04-11
AI Technical Summary
The existing cable tensile test clamping device causes serious cable deformation during the clamping process and the test is inaccurate.
A cable performance test clamping device including arc clamping plates, servo reducer motors and springs is designed. The contact area between the arc clamping plates and the cable is larger. The servo reducer motor automatically controls the clamping force, and the spring buffering avoids excessive clamping.
The uniform clamping of the cable is achieved, which reduces cable deformation and improves the accuracy and efficiency of tensile resistance testing.
Smart Images
Figure CN222689534U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a cable performance test clamping device. Background Art
[0002] Cables need to be sampled and tested after production. The test items include fire resistance test, tensile test, torsion resistance test, etc.
[0003] Among them, tensile resistance is one of the most important indicators. The reason is that after the cable is erected in the air, it is mainly subjected to tensile force, and during the laying process, it is mainly subjected to traction tension.
[0004] In the prior art, when testing the tensile strength of a cable, one end is clamped and the other end is pulled by a tensile testing machine to detect the tensile force of the cable when it breaks, so as to determine whether the cable meets the standard.
[0005] In the prior art, the cable is clamped by a simple jaw clamp. During the clamping process, the cable is subjected to a planar pressure, and the cable is round. This planar clamping force can cause serious deformation of the cable. When subjected to tension, the cable breaks at the clamping position, resulting in relatively inaccurate testing.
[0006] To this end, we designed a cable performance test clamping device with uniform clamping force. Utility Model Content
[0007] The technical problem to be solved by the utility model is to provide a cable performance test clamping device with uniform clamping force.
[0008] The utility model is realized by the following technical solutions:
[0009] A cable performance test clamping device includes a bottom plate, a base is arranged on the upper part of the bottom plate, a transverse channel is arranged on the top of the base, clamping devices are symmetrically arranged at the front and rear of the channel, a through slot is arranged on the side of the base below the channel, a screw is longitudinally arranged inside the base, the screw is rotatably connected to the base, a servo reduction motor for driving the screw to rotate is installed on the bottom plate, the screw has two threaded parts with opposite rotation directions, a slide structure is cooperated through the threaded parts, a vertical slot connected to the through slot is arranged at the bottom of the channel, the clamping device corresponds to the vertical slot, and the clamping device cooperates with the slide structure.
[0010] Preferably, a positioning wheel is rotatably provided near the two sections of the channel, and an annular groove is provided on the outer side of the positioning wheel, and the clamped cable is positioned through the annular groove.
[0011] Preferably, the sliding seat structure includes a sliding seat, a threaded hole matching the threaded part is penetrated at the end face of the sliding seat, a slider is arranged on the top of the sliding seat, the slider fits the vertical groove and slides longitudinally along the vertical groove, a groove is arranged on the top of the slider, a guide shaft is detachably installed inside the groove, a spring is arranged on the guide shaft, the clamping device fits in the groove and slides along the guide shaft, and the clamping device is acted on by the spring.
[0012] Preferably, the clamping device includes an arc-shaped clamping plate, a slide plate is arranged at the bottom of the clamping plate, the slide plate is inserted into the groove, the guide shaft passes through the slide plate, the spring acts on the slide plate, and under the action of the spring, the slide plate moves toward the middle of the channel.
[0013] Preferably, a guide shaft is provided at the outer end surface of the clamping plate, the guide shaft passes through the base, and a linear bearing matching the guide shaft is installed on the outside of the base.
[0014] Preferably, an anti-slip rack is provided on the inner arc surface of the clamping plate, the anti-slip rack is arc-shaped, and the thickness of the anti-slip rack gradually decreases in the direction away from the inner wall of the clamping plate.
[0015] The beneficial effects of the utility model are:
[0016] This equipment adopts an arc-shaped clamping plate, and the cable is clamped by the opposite movement of two armor plates. After clamping, the contact area with the cable is larger, which will not cause excessive deformation of the cable, making the cable tensile performance test more effective. In addition, this equipment is driven by a servo reduction motor, and no manual operation is required. The cable clamping efficiency is higher, and the spring is used for buffering to avoid cable deformation caused by excessive clamping. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0018] Figure 1 It is a top view of the utility model;
[0019] Figure 2 It is a side view of the utility model;
[0020] Figure 3 It is a side view of the utility model after the positioning wheel is removed;
[0021] Figure 4 It is a structural schematic diagram of the slide;
[0022] Figure 5 It is a schematic diagram of the slide and the clamping device after coordination. DETAILED DESCRIPTION
[0023] All features disclosed in this specification, or steps in all methods or processes disclosed, except mutually exclusive features and / or steps, can be combined in any manner.
[0024] Any feature disclosed in this specification (including any additional claims, abstract and drawings), unless otherwise stated, may be replaced by other equivalent or alternative features with similar purposes. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.
[0025] In the description of the present invention, it should be understood that the terms "one end", "the other end", "outside", "upper", "inside", "horizontal", "coaxial", "center", "end", "length", "outer end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0026] In addition, in the description of the present invention, “plurality” means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0027] In the present invention, unless otherwise clearly specified and limited, the terms "set", "socket", "connect", "penetrate", "plug in" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0028] like Figure 1 , Figure 2 and Figure 3A cable performance test clamping device shown in the figure includes a bottom plate 1, a base 2 is arranged on the upper part of the bottom plate 1, a transversely penetrating channel 21 is arranged on the top of the base 2, a clamping device 3 is symmetrically arranged at the front and rear of the channel 21, a through groove 22 is arranged on the side of the base 2 below the channel 21, a screw 23 is longitudinally arranged inside the base 2, the screw 23 is rotatably connected to the base 2, and the rotational connection is supported by a bearing, a servo reduction motor 24 for driving the screw 23 to rotate is installed on the bottom plate 1, the screw 23 has two sections of threaded parts 231 with opposite rotation directions, and a slide structure 4 is cooperated through the threaded part 231, and a vertical groove 25 connected to the through groove 22 is arranged at the bottom of the channel 21, the clamping device 3 corresponds to the vertical groove 25, and the clamping device 3 cooperates with the slide structure 4.
[0029] In the above technical solution, the two clamping devices 3 are clamped or loosened by controlling the forward and reverse rotation of the servo reduction motor 24 .
[0030] The contact area between the clamping device 3 and the clamped cable is large, and it is not easy to get loose when the cable tensile test is performed, and it is relatively stable and reliable.
[0031] See also Figure 1 As shown, a positioning wheel 232 is rotatably provided near the two sections of the channel 21 , and an annular groove 242 is provided on the outer side of the positioning wheel 232 , and the clamped cable is positioned through the annular groove 242 .
[0032] In the above technical solution, the positioning wheel 232 can achieve the technical effect of laying cables. The positioning wheels 232 at both ends provide support so that the cables are exactly in the center of the channel, and the clamping devices 3 on both sides move toward the middle to clamp the cables.
[0033] See also Figure 1 and Figure 4 As shown, the slide structure 4 includes a slide 41, and a threaded hole 42 matching the threaded part is penetrated at the end face of the slide 41, and a slider 43 is arranged on the top of the slide 41, and the slider 43 fits the vertical groove 25 and slides longitudinally along the vertical groove 25. A groove 44 is arranged on the top of the slider, and a guide shaft 45 is detachably installed inside the groove 44, and a spring 46 is arranged on the guide shaft 45, and the clamping device 3 is fitted in the groove 44 and slides along the guide shaft 45, and the clamping device 3 is acted on by the spring 46.
[0034] In the above technical solution, the sliding block 34 cooperates with the vertical groove 25 to achieve the movement and guiding effect on the sliding seat 41, and the sliding seat 41 is prevented from rotating when the screw rod rotates.
[0035] The spring 46 is used for buffering. When the servo reduction motor starts to run, the spring is in a relaxed state and pushes the clamping device 3 to hold the tested cable. Then the servo reduction motor continues to operate, causing the spring to be compressed, and the clamping force of the clamping device 3 on the cable gradually increases until the cable is completely held.
[0036] See also Figure 3 , Figure 4 and Figure 5 As shown, the clamping device 3 includes an arc-shaped clamping plate 31, a slide plate 32 is arranged at the bottom of the clamping plate 31, the slide plate 32 is inserted into the groove 44, the guide shaft 45 passes through the slide plate 32, and the spring 46 acts on the slide plate 32. Under the action of the spring 46, the slide plate 32 moves toward the middle of the channel.
[0037] See also Figure 3 As shown, a guide shaft 331 is provided at the outer end surface of the clamping plate 31 , and the guide shaft 331 passes through the base 2 . A linear bearing 332 matching the guide shaft 331 is installed outside the base 2 .
[0038] This technical solution can play a role in guiding the displacement of the clamping plate 31 .
[0039] See also Figure 5 As shown, an anti-skid rack 3333 is provided on the inner arc surface of the clamping plate 31 , and the anti-skid rack 3333 is arc-shaped, and the thickness of the anti-skid rack 3333 gradually decreases in the direction away from the inner wall of the clamping plate 31 .
[0040] When the technical solution is in use, the anti-slip rack 3333 can be embedded in the armor layer of the cable to increase the fixing effect of the cable.
[0041] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that are not conceived through creative work should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope defined in the claims.
Claims
1. A cable performance test clamping device, characterized in that: It includes a bottom plate, a base is arranged on the upper part of the bottom plate, a transverse channel is arranged on the top of the base, clamping devices are symmetrically arranged at the front and rear of the channel, a through slot is arranged on the side of the base below the channel, a screw is longitudinally arranged inside the base, the screw is rotatably connected to the base, a servo reduction motor for driving the screw to rotate is installed on the bottom plate, the screw has two threaded parts with opposite rotation directions, a sliding seat structure is cooperated through the threaded parts, a vertical slot connected to the through slot is arranged at the bottom of the channel, the clamping device corresponds to the vertical slot, and the clamping device cooperates with the sliding seat structure.
2. The cable performance test clamping device according to claim 1, characterized in that: A positioning wheel is rotatably arranged at a position close to the two sections of the channel, and an annular groove is provided on the outer side of the positioning wheel, and the clamped cable is positioned through the annular groove.
3. The cable performance test clamping device according to claim 1, characterized in that: The slide structure includes a slide, a threaded hole matching the threaded part is penetrated at the end face of the slide, a slider is arranged on the top of the slide, the slider fits the vertical groove and slides longitudinally along the vertical groove, a groove is arranged on the top of the slider, a guide shaft is detachably installed inside the groove, a spring is arranged on the guide shaft, the clamping device fits in the groove and slides along the guide shaft, and the clamping device is acted on by the spring.
4. The cable performance test clamping device according to claim 3, characterized in that: The clamping device includes an arc-shaped clamping plate, a slide plate is arranged at the bottom of the clamping plate, the slide plate is inserted into the groove, the guide shaft passes through the slide plate, the spring acts on the slide plate, and under the action of the spring, the slide plate moves toward the middle of the channel.
5. The cable performance test clamping device according to claim 4, characterized in that: A guide shaft is arranged at the outer end surface of the clamping plate, and the guide shaft passes through the base. A linear bearing matching the guide shaft is installed outside the base.
6. The cable performance test clamping device according to claim 4, characterized in that: An anti-skid rack is arranged on the inner arc surface of the clamping plate. The anti-skid rack is arc-shaped, and the thickness of the anti-skid rack gradually decreases in the direction away from the inner wall of the clamping plate.