Cable bending strength testing device

Abstract

The utility model provides a cable bending strength testing device, which comprises an electric cylinder I, a cable main body, a force application seat, a tension sensor and a connecting cable, a group of limiting seats for limiting the outer side of the electric cylinder I is arranged on the outer side of the electric cylinder I, and the right side of the electric cylinder I is a telescopic end; a set of connectors used for limiting the position of the chuck are arranged on the right side of the telescopic end of the first electric cylinder, external threads are arranged on the outer side of the right end of the first electric cylinder, internal thread grooves are formed in the connectors, and the cross section of the front side view of each connector is of an isosceles trapezoid structure. Compared with the prior art, the cable bending detection device has the following beneficial effects that cable main bodies with different lengths are supported by using the electric cylinder I and the electric cylinder II, the left side and the right side of the to-be-detected cable main body can be firmly fixed by using the chucks, and the supporting force can be always kept in the cable bending process; therefore, accurate data of the bending strength of the cable main body is obtained.

Description

Technical Field

[0001] This utility model belongs to the field of cable bending test technology and relates to a cable bending strength test device. Background Technology

[0002] The main shortcomings of existing cable bending tests in terms of cable pressure bending are that they cannot fully simulate the stress state in actual use environments, the testing of cable material properties is not comprehensive enough, and the repeatability of test results is poor. First, cables are subjected to a variety of complex stresses in actual applications, including tension, compression, torsion, and bending, while traditional bending tests often only focus on a single bending stress, which cannot comprehensively reflect the overall performance of cables in actual use.

[0003] Conventional solutions include increasing the number of tests and optimizing test procedures to improve accuracy and repeatability. However, these methods often require significant investment, including purchasing more advanced testing equipment and increasing manpower and resources. Therefore, there is an urgent need for a cable bending strength testing device to address these issues. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a cable bending strength testing device to solve the problems mentioned in the background technology.

[0005] This utility model is achieved through the following technical solution: a cable bending strength testing device, comprising: an electric cylinder and a connecting cable, wherein a set of limiting seats for limiting the outer side of the electric cylinder is provided, and the right side of the electric cylinder is a telescopic end;

[0006] The electric cylinder has a set of connectors on the right side of its telescopic end for limiting the position of the chuck. The electric cylinder has an external thread on the outer side of its right end, and an internal thread groove is opened inside the connector. The front cross-section of the connector is an isosceles trapezoidal structure.

[0007] The connector has a set of clamps on the right side for holding the left side of the cable. The connector is screwed into the right side of the telescopic rod to keep the clamps fixed. The right side of the cable body also has a set of clamps, connectors, telescopic rod II, limit seat and electric cylinder II. The clamps, connectors, telescopic rod II, limit seat and electric cylinder II are arranged in the same positional combination as electric cylinder I, limit seat, telescopic rod I, connectors and clamps. They are symmetrically arranged with the middle position of the cable body as the center. Electric cylinder I and electric cylinder II can be used to support cable bodies of different lengths. At the same time, the clamps are used to ensure that the left and right sides of the cable body to be tested can be firmly fixed and that the support force can be maintained at all times during the bending process of the cable, so as to obtain accurate data on the bending strength of the cable body.

[0008] In a preferred embodiment, a set of force-applying seats for improving bending strength and pressure is provided on the upper outer sides of both the left and right ends of the cable body. The force-applying seats have a hook-shaped structure, and the distance between the two sets of force-applying seats and the center position of the cable body is the same.

[0009] In a preferred embodiment, the force-applying seat is clamped and fixed to the cable body. Each set of force-applying seats has a set of tension cables at its lower end for tension support. The lower end of each tension cable has a set of winding grooves for winding the lower end of the tension cable. The pressure of the two sets of tension cables can be controlled by a motor to provide a uniform downward force to the outside of the cable body to meet the load-bearing bending strength under different assumed conditions.

[0010] In a preferred embodiment, two sets of transmission rods are provided on the outer side of the tape groove, and a transmission rod is provided on the outer side of the two sets of tape grooves for synchronously applying winding pressure to the two sets of cables. A motor is provided on the left side of the transmission rod for applying power to it.

[0011] In a preferred embodiment, a set of limiting bearings for limiting the position of the transmission rod is provided on the outer sides of the left and right ends of the transmission rod, and a set of base plates for connecting and fixing the lower ends of the two sets of limiting bearings is provided at the lower ends of the transmission rod.

[0012] In a preferred embodiment, the lower end of each of the two sets of limiting seats is provided with a platform for fixing and supporting the lower end thereto, and each set of cables is provided with two sets of tension sensors for detecting the applied pressure at the middle position.

[0013] In a preferred embodiment, two sets of connecting cables for maintaining the tension of the cable are provided between the two sets of tension sensors. The two sets of connecting cables are connected to the pressure detection ends of the tension sensors. By using two sets of tension sensors, the pressure of the cable on the cable body can be detected, so as to provide external pressure data support for the detection of cable bending degree, thereby more closely matching the actual use status and accurate data of the cable body in the actual use environment.

[0014] After adopting the above technical solution, the beneficial effects of this utility model are as follows: By using electric cylinder one and electric cylinder two to support cable bodies of different lengths, and by using clamps to ensure that the left and right sides of the cable body to be tested can be firmly fixed, and the supporting force can be maintained at all times during the cable bending process, thereby obtaining accurate data on the bending strength of the cable body; by using a motor to control the pressure of the two sets of cables to provide a uniform downward force on the outside of the cable body to meet the load bending strength under different assumed conditions; and by using two sets of tension sensors to detect the pressure of the cables on the cable body, providing external pressure data support for the cable bending degree detection, thus more closely conforming to the actual use state and accurate data of the cable body in the actual use environment. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a top view of the front structure of a cable bending strength testing device according to the present invention;

[0017] Figure 2 This is a top view of the right oblique front side of the cable bending strength testing device of this utility model;

[0018] Figure 3 This is a top view of the motor and transmission rod in the cable bending strength testing device of this utility model;

[0019] Figure 4 This is a front view structural diagram showing the positions of two sets of tensile force sensors in a cable bending strength testing device according to this utility model;

[0020] In the diagram: 100-Electric cylinder 1, 110-Limit seat, 120-Telescopic rod 1, 130-Connector, 140-Clamp, 150-Cable body, 160-Force application seat, 170-Cable, 180-Tabletop, 190-Door body, 200-Pressure chamber, 210-Motor, 220-Transmission rod, 230-Waist groove, 240-Limit bearing, 250-Tension sensor, 260-Connecting cable. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-4 A cable bending strength testing device includes: an electric cylinder 100, a cable body 150, a force application seat 160, a tension sensor 250, and a connecting cable 260. The electric cylinder 100 is provided with a set of limiting seats 110 for limiting its outer side, and the electric cylinder 100 is extended to the right side.

[0023] The electric cylinder 100 has a set of connectors 130 on the right side of the telescopic end for limiting the position of the chuck 140. The outer side of the right end of the electric cylinder 100 has an external thread, and the connector 130 has an internal thread groove. The front cross-section of the connector 130 is an isosceles trapezoidal structure.

[0024] Inside the right side of the connector 130, there is a set of clamps 140 for clamping the left side of the cable. After the connector 130 is screwed into the right side of the telescopic rod 120, the clamps 140 are fixed. The right side of the cable body 150 is also provided with a set of clamps 140, connectors 130, telescopic rod 2, limit seat 110 and electric cylinder 2. The clamps 140, connectors 130, telescopic rod 2, limit seat 110 and electric cylinder 2 are arranged in the same positional combination structure as electric cylinder 100, limit seat 110, telescopic rod 120, connectors 130 and clamps 140, and are symmetrically arranged with the middle position of the cable body 150 as the center.

[0025] Each of the left and right ends of the cable body 150 is provided with a set of force-applying seats 160 for improving bending strength and pressure. The force-applying seats 160 have a hook-shaped structure. The two sets of force-applying seats 160 are equidistant from the center of the cable body 150.

[0026] The force-applying seat 160 is clamped and fixed to the cable body 150. Each set of force-applying seats 160 has a set of tension cables 170 at its lower end for tension support. The lower end of the tension cables 170 has a set of winding grooves 230 for winding the lower end of the tension cables 170. The pressure of the two sets of tension cables 170 can be controlled by the motor 210 to provide a uniform downward force to the outside of the cable body 150 to meet the load-bearing bending strength under different assumed conditions.

[0027] Two sets of transmission rods 220 are provided on the outer side of the tape groove 230, and a transmission rod 220 is provided on the outer side of the two sets of tape grooves 230 for synchronously applying winding pressure to the two sets of cables 170. A motor 210 is provided on the left side of the transmission rod 220 for applying power to it.

[0028] The transmission rod 220 has a set of limiting bearings 240 on the outer sides of its left and right ends to limit the position of the transmission rod 220. Both sets of limiting bearings 240 have a set of base plates at their lower ends for connecting and fixing their lower ends.

[0029] The lower end of each of the two sets of limiting seats 110 is provided with a platform 180 for fixing and supporting the lower end of the seat. Each set of cables 170 is provided with two sets of tension sensors 250 in the middle position for detecting the applied pressure.

[0030] Two sets of connecting cables 260 are provided between the two sets of tension sensors 250 to maintain the tension of the cable 170. The two sets of connecting cables 260 are connected to the pressure detection ends of the tension sensors 250 evenly.

[0031] Please see Figures 1-4 As the first embodiment of this utility model: When the operator needs to conduct a cable bending test, the cable body 150 to be tested is first placed inside the two sets of clamps 140. The operator determines the placement point of the center of the cable body 150 based on the center point between the two sets of clamps 140. Then, the electric cylinders 100 and 2 are extended simultaneously, and the electric cylinders 100 and 2 drive the two sets of clamps 140 to clamp and fix the left and right sides of the cable body 150 to be tested. Then, the operator can simultaneously extend and retract the electric cylinders 100 and 2 to detect the number of bends of the cable body 150 until the outer sheath of the cable body 150 is cracked. When it is necessary to test the cable body 150... During load bending testing, two sets of force-applying seats 160 are evenly clamped on the outside of the cable body 150. Then, the transmission rod 220 is rotated by the motor 210 to wind up the cable 170. During this process, the tension sensor 250 can detect the real-time tension, thereby measuring the weight load data of the cable body 150. Then, a bending test is performed. During this process, electric cylinders 100 and 2 are used to support the cable body 150 of different lengths. At the same time, the clamps 140 are used to ensure that the left and right sides of the cable body 150 under test can be firmly fixed and that the support force can be maintained throughout the bending process, thereby obtaining accurate data on the bending strength of the cable body 150.

[0032] Please see Figures 1-4As a second embodiment of this utility model: based on the description in the above embodiments, further, two sets of connecting cables 260 for maintaining the tension of the cable 170 are provided between the two sets of tension sensors 250. The two sets of connecting cables 260 are connected to the pressure detection ends of the tension sensors 250. It is possible to use the two sets of tension sensors 250 to detect the pressure of the cable 170 on the cable body 150, so as to provide external pressure data support in the detection of cable bending degree, thereby better conforming to the actual use state and accurate data of the cable body 150 in the actual use environment.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cable bend strength testing apparatus comprising: The utility model provides an electric cylinder (100), cable body (150), force seat (160), tension sensor (250) and connecting cable (260), its characterized in be: the utility model discloses one group of limiting seat (110) for the outside limiting of electric cylinder (100) outside, the utility model discloses the right side of electric cylinder (100) is telescopic end, The utility model discloses a telescopic end right side of electric cylinder (100) is equipped with one group of connecting head (130) for the position of chuck (140) is defined, the utility model discloses the right end outside of electric cylinder (100) is equipped with female screw groove, the utility model discloses the front side of connecting head (130) is the cross section of an isosceles trapezoidal structure, The utility model discloses a telescopic end right side of electric cylinder (100) is equipped with one group of chuck (140) for the left clamping of cable, the utility model discloses the right side screwing of connecting head (130) and telescopic rod one (120) keeps chuck (140) fixed, the utility model discloses the right side of cable body (150) is also equipped with one group of chuck (140), connecting head (130), telescopic rod two, limiting seat (110) and electric cylinder two, and chuck (140), connecting head (130), telescopic rod two, limiting seat (110) and electric cylinder two with the position combination structure mode of electric cylinder (100), limiting seat (110), telescopic rod one (120), connecting head (130) and chuck (140) is identical, and with cable body (150) central position symmetry arrangement.

2. A cable bend strength testing apparatus according to claim 1, wherein: The utility model discloses a telescopic end right side of electric cylinder (100) is equipped with one group of chuck (140) for the left clamping of cable, the utility model discloses the right side screwing of connecting head (130) and telescopic rod one (120) keeps chuck (140) fixed, the utility model discloses the right side of cable body (150) is also equipped with one group of chuck (140), connecting head (130), telescopic rod two, limiting seat (110) and electric cylinder two, and chuck (140), connecting head (130), telescopic rod two, limiting seat (110) and electric cylinder two with the position combination structure mode of electric cylinder (100), limiting seat (110), telescopic rod one (120), connecting head (130) and chuck (140) is identical, and with cable body (150) central position symmetry arrangement.

3. A cable bend strength testing apparatus as claimed in claim 2, wherein: The utility model discloses a telescopic end right side of electric cylinder (100) is equipped with one group of chuck (140) for the left clamping of cable, the utility model discloses the right side screwing of connecting head (130) and telescopic rod one (120) keeps chuck (140) fixed, the utility model discloses the right side of cable body (150) is also equipped with one group of chuck (140), connecting head (130), telescopic rod two, limiting seat (110) and electric cylinder two, and chuck (140), connecting head (130), telescopic rod two, limiting seat (110) and electric cylinder two with the position combination structure mode of electric cylinder (100), limiting seat (110), telescopic rod one (120), connecting head (130) and chuck (140) is identical, and with cable body (150) central position symmetry arrangement.

4. A cable bend strength testing apparatus as claimed in claim 3, wherein: The utility model discloses a telescopic end right side of electric cylinder (100) is equipped with one group of chuck (140) for the left clamping of cable, the utility model discloses the right side screwing of connecting head (130) and telescopic rod one (120) keeps chuck (140) fixed, the utility model discloses the right side of cable body (150) is also equipped with one group of chuck (140), connecting head (130), telescopic rod two, limiting seat (110) and electric cylinder two, and chuck (140), connecting head (130), telescopic rod two, limiting seat (110) and electric cylinder two with the position combination structure mode of electric cylinder (100), limiting seat (110), telescopic rod one (120), connecting head (130) and chuck (140) is identical, and with cable body (150) central position symmetry arrangement.

5. A cable bend strength testing apparatus as claimed in claim 4, wherein: The utility model discloses a telescopic end right side of electric cylinder (100) is equipped with one group of chuck (140) for the left clamping of cable, the utility model discloses the right side screwing of connecting head (130) and telescopic rod one (120) keeps chuck (140) fixed, the utility model discloses the right side of cable body (150) is also equipped with one group of chuck (140), connecting head (130), telescopic rod two, limiting seat (110) and electric cylinder two, and chuck (140), connecting head (130), telescopic rod two, limiting seat (110) and electric cylinder two with the position combination structure mode of electric cylinder (100), limiting seat (110), telescopic rod one (120), connecting head (130) and chuck (140) is identical, and with cable body (150) central position symmetry arrangement.

6. A cable bend strength testing apparatus as claimed in claim 4, wherein: The utility model discloses a telescopic end right side of electric cylinder (100) is equipped with one group of chuck (140) for the left clamping of cable, the utility model discloses the right side screwing of connecting head (130) and telescopic rod one (120) keeps chuck (140) fixed, the utility model discloses the right side of cable body (150) is also equipped with one group of chuck (140), connecting head (130), telescopic rod two, limiting seat (110) and electric cylinder two, and chuck (140), connecting head (130), telescopic rod two, limiting seat (110) and electric cylinder two with the position combination structure mode of electric cylinder (100), limiting seat (110), telescopic rod one (120), connecting head (130) and chuck (140) is identical, and with cable body (150) central position symmetry arrangement.

7. A cable bend strength testing apparatus as claimed in claim 6, wherein: Two groups of the tension sensor (250) between the two groups are provided with two groups of connecting cable (260) for keeping the tension cable (170) stretching, two groups of the connecting cable (260) are uniformly connected with the pressure detection end of the tension sensor (250).

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