Cable tension testing device

Abstract

The utility model relates to the technical field of cable tension testing, in particular to a cable tension testing device which comprises a supporting frame, a first clamping mechanism, a tension meter fixedly connected with the first clamping mechanism and a second clamping mechanism movably arranged on the inner side of the supporting frame through a linear driving mechanism. The linear driving mechanism is used for driving the second clamping mechanism to move towards the side close to or away from the first clamping mechanism, and the first clamping mechanism and the second clamping mechanism are the same in structure. Each of the first clamping mechanism and the second clamping mechanism comprises a fixing seat, two clamping plates arranged on the two sides of the fixing seat respectively and a linear adjusting module used for driving the clamping plates to move towards the side close to or away from the fixing seat, and a receding through hole allowing a cable to penetrate is formed in the bottom end of the fixing seat in a penetrating mode; the clamping stability and the clamping speed are improved, the cable is prevented from being separated from the first clamping mechanism or the second clamping mechanism, and then the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cable tension testing, in particular to a cable tension testing device. Background Art

[0002] A cable is made of one or more mutually insulated conductors and an outer insulating protective layer. It is a wire that transmits electricity or information from one place to another. It is usually a rope-like cable made of several or several groups of conductors (at least two in each group) twisted together. After the cable is processed, it is necessary to perform a tensile test on the cable to determine whether the cable is qualified.

[0003] In the Chinese Patent Literature Library, the patent with authorization announcement number CN218787958U discloses a cable tension testing device, which clamps and fixes the two ends of the cable by setting a clamping device. During the actual testing process, the cable is clamped and fixed only by two clamps. During the pulling process, if the clamping is not firm or the pulling force is large, the cable can easily be pulled out from the middle of the clamp, affecting the measurement. Summary of the Invention

[0004] The purpose of the present invention is to provide a cable tension testing device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a cable tension testing device, comprising a support frame, a first clamping mechanism, a tension gauge fixedly connected to the first clamping mechanism, and a second clamping mechanism movably arranged on the inner side of the support frame through a linear drive mechanism, the linear drive mechanism being used to drive the second clamping mechanism to move toward or away from the first clamping mechanism, the first clamping mechanism and the second clamping mechanism being used to clamp the two free ends of the cable assembly respectively, and the first clamping mechanism and the second clamping mechanism having the same structure, the first clamping mechanism and the second clamping mechanism both comprising a fixed seat, two clamping plates respectively arranged on both sides of the fixed seat and a linear adjustment module for driving the clamping plate to move toward or away from the fixed seat, the bottom end of the fixed seat being penetrated by a makeshift through-hole for accommodating the passage of the cable.

[0006] Furthermore, the linear adjustment module includes a first threaded rod and a guide rod arranged parallel to both sides of the fixed seat, and fixed plates are provided at both ends of the first threaded rod and the guide rod in the length direction. A knob is fixed to one end of the first threaded rod, and the external threads at both ends of the first threaded rod are opposite. The clamping plates on both sides are respectively threadedly connected to the two ends of the first threaded rod. The rotation of the first threaded rod drives the clamping plates on both sides to move synchronously toward or away from the fixed seat.

[0007] Furthermore, the said giving way through hole is a strip-shaped through hole.

[0008] Furthermore, anti-slip pads are provided on one side of the two clamping plates close to the fixing seat.

[0009] Furthermore, the linear drive mechanism includes a second threaded rod installed on the inner side of the support frame, a drive motor driving the second threaded rod to rotate, and a slide threadedly connected to the second threaded rod, and the second clamping mechanism is fixedly connected to the slide.

[0010] Furthermore, the linear drive mechanism also includes a guide limiting module parallel to the second threaded rod.

[0011] Compared with the prior art, the beneficial effect of the present invention is that a fixing seat and a clamping plate are provided, and a clearance hole is provided on the fixing seat. During testing, the cable is first wrapped around the clearance hole, and then clamped and fixed synchronously by the two clamping plates, thereby improving the clamping stability and clamping speed, avoiding the cable from separating from the first clamping mechanism or the second clamping mechanism, and thereby improving the test efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the three-dimensional structure of the first clamping mechanism of the present utility model;

[0014] Figure 3 This is a structural diagram of the fixing seat in the working state of the utility model.

[0015] In the figure: 1. Support frame; 2. Tension gauge; 3. First clamping mechanism; 301. Fixed seat; 3011. Movable through hole; 302. Clamping plate; 303. Linear adjustment module; 3031. First threaded rod; 3032. Knob; 3033. Guide rod; 3034. Fixed plate; 4. Second clamping mechanism; 5. Linear drive mechanism; 501. Second threaded rod; 502. Drive motor; 503. Slide plate; 504. Guide limit module. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. In the description of the present invention, it should be noted that the terms "first", "second", etc. are only used for descriptive purposes and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" can explicitly or implicitly include at least one of the features. For the purpose of the description and claims of the present invention and the above-mentioned drawings, the terms "including" and any variations thereof are intended to cover non-exclusive inclusions.

[0017] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be a communication between the two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. In addition, in the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside" and the like indicate directions or positional relationships based on the directions 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 component referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation to the present invention.

[0018] See also Figure 1-3The utility model provides an embodiment of a cable tension testing device, comprising a support frame 1, a first clamping mechanism 3, a tension meter 2 fixedly connected to the first clamping mechanism 3, and a second clamping mechanism 4 movably arranged on the inner side of the support frame 1 through a linear drive mechanism 5. In this embodiment, the support frame 1 is a rectangular frame structure, the first clamping mechanism 3 and the second clamping mechanism 4 are respectively arranged at the upper and lower ends of the inner side of the support frame 1, and the linear drive mechanism 5 is used to drive the second clamping mechanism 4 to move toward or away from the side of the first clamping mechanism 3. Specifically, the linear drive mechanism 5 includes a second threaded rod 501 installed on the inner side of the support frame 1 and a drive motor 5 for driving the second threaded rod 501 to rotate. 02 and a slide plate 503 threadedly connected to the second threaded rod 501, the second clamping mechanism 4 is fixedly connected to the slide plate 503, the second threaded rod 501 is vertically fixed to one side of the inner part of the support frame 1, and when the driving motor 502 rotates, it drives the second threaded rod 501 to rotate, and then drives the slide plate 503 to move back and forth along the length direction of the second threaded rod 501. The linear drive mechanism 5 can also be set as an electric telescopic rod, a hydraulic telescopic rod or other structures as needed. Further, the linear drive mechanism 5 also includes a guide limit module 504 parallel to the second threaded rod 501. In this embodiment, the guide limit module 504 is specifically a combination of a linear bearing and a slide rod, and can also be set as a linear slide rail;

[0019] The first clamping mechanism 3 and the second clamping mechanism 4 are respectively used to clamp the two free ends of the cable assembly, and the first clamping mechanism 3 and the second clamping mechanism 4 have the same structure. The first clamping mechanism 3 and the second clamping mechanism 4 both include a fixed seat 301, two clamping plates 302 respectively arranged on both sides of the fixed seat 301, and a linear adjustment module 303 for driving the clamping plates 302 to move closer to or away from the fixed seat 301. The bottom end of the fixed seat 301 is penetrated by a through hole 3011 for accommodating the passage of the cable. Figure 3 When fixing, the free end of the cable can be pre-wound around the bottom end of the fixing seat 301, and then the wound cable is clamped and positioned by the two clamping plates 302, which makes the clamping more firm and reliable. In this embodiment, the giving way through hole 3011 is a strip-shaped through hole. During testing, multiple cables of different lengths can be wound and fixed at the same time. During the tension test, multiple cables can be tested in sequence, which improves work efficiency.

[0020] When the handle is turned, the cam 3032 is rotated to move the handle 3033 upwards, so that the handle 3033 can be turned to the left or right of the cam 3034. When the handle is turned, the cam 3032 is rotated to move the handle 3033 upwards, so that the handle 3033 can be turned to the right of the cam 3034.

[0021] The two clamping plates 302 are both provided with anti-slip pads on one side close to the fixing seat 301, which further improves the stability of clamping and is highly practical.

[0022] Working principle: When working, first wrap one free end of the cable to be measured around the bottom of the give way hole 3011, then rotate the knob 3032 to drive the first threaded rod 3031 to rotate, and then drive the two clamping plates 302 on both sides to move synchronously toward the side close to the fixed seat 301, clamp and fix the cable wrapped on the fixed seat 301, and similarly clamp and fix the other free end of the cable. During the tension test, the second threaded rod 501 is driven to rotate by the driving motor 502, and then the slide plate 503 and the second clamping mechanism 4 are driven to move toward the end away from the first clamping mechanism 3, and the cable is tested for tension until the cable breaks. The dynamometer 2 displays the maximum tension that the cable can withstand.

[0023] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A cable tension test device, comprising a support frame (1), a first clamping mechanism (3), a tension gauge (2) fixedly connected to the first clamping mechanism (3), and a second clamping mechanism (4) movably arranged on the inner side of the support frame (1) via a linear drive mechanism (5), wherein the linear drive mechanism (5) is used to drive the second clamping mechanism (4) to move toward or away from the first clamping mechanism (3), characterized in that: The first clamping mechanism (3) and the second clamping mechanism (4) are respectively used to clamp the two free ends of the cable assembly, and the first clamping mechanism (3) and the second clamping mechanism (4) have the same structure. The first clamping mechanism (3) and the second clamping mechanism (4) both comprise a fixed seat (301), two clamping plates (302) respectively arranged on both sides of the fixed seat (301), and a linear adjustment module (303) for driving the clamping plates (302) to move towards or away from the fixed seat (301), and a clearance through hole (3011) for accommodating the passage of the cable is provided through the bottom end of the fixed seat (301).

2. The cable tension test device according to claim 1, characterized in that: The linear adjustment module (303) comprises a first threaded rod (3031) and a guide rod (3033) which are arranged in parallel on both sides of the fixing seat (301), and fixing plates (3034) are arranged at both ends of the first threaded rod (3031) and the guide rod (3033) in the length direction, a knob (3032) is fixed to one end of the first threaded rod (3031), and the external threads at both ends of the first threaded rod (3031) are opposite, and the clamping plates (302) at both sides are respectively threadedly connected to the two ends of the first threaded rod (3031), and the first threaded rod (3031) rotates to drive the clamping plates (302) at both sides to move synchronously toward or away from the fixing seat (301).

3. The cable tension testing device according to claim 1, characterized in that: The clearance through hole (3011) is a strip-shaped through hole.

4. The cable tension testing device according to claim 1, characterized in that: Anti-slip pads are provided on one side of the two clamping plates (302) close to the fixing seat (301).

5. The cable tension testing device according to claim 1, characterized in that: The linear drive mechanism (5) comprises a second threaded rod (501) mounted on the inner side of the support frame (1), a drive motor (502) for driving the second threaded rod (501) to rotate, and a slide plate (503) threadedly connected to the second threaded rod (501), and the second clamping mechanism (4) is fixedly connected to the slide plate (503).

6. The cable tension test device according to claim 5, characterized in that: The linear drive mechanism (5) further comprises a guide limit module (504) which is parallel to the second threaded rod (501).

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