Anti-cracking test device

Abstract

The anti-cracking test device comprises a bottom plate, a vertical frame, a lifting mechanism, two sets of clamps, a cylinder, an adjusting sleeve and a limiting ring, the vertical frame is vertically arranged on the bottom plate, the two sets of clamps are oppositely arranged on the two sides of the inner wall of the vertical frame, the lifting mechanism is connected with the clamps and controls the two sets of clamps to ascend and descend synchronously, and the cylinder is fixedly installed on the surface of the inner wall of the vertical frame. The adjusting sleeve is sleeved on the cylinder; the two ends of the cooled cable are installed in the corresponding clamps respectively, then the clamps are matched with the lifting mechanism to drive the clamps to move downwards, the cable is made to make contact with the cylinder, the cable is bent under the action of the cylinder, and therefore the cable low-temperature bending anti-cracking test is achieved, and when the bending radius needs to be adjusted, the adjusting sleeve with the corresponding radius is arranged on the cylinder in a sleeving mode. And then the limiting ring is screwed, and the installed adjusting sleeve is fixed, so that the test requirements of different bending radiuses are met, and the device is simple in structure, flexible and convenient to use and suitable for large-scale popularization and application.

Description

TECHNICAL FIELD

[0001] The utility model relates to cable anti -cracking test field especially relates to a kind of anti -cracking test device. BACKGROUND

[0002] When cable mechanical energy low-temperature bending anti-cracking test, cable sample needs to be taken out from low-temperature box, and bending test is carried out quickly under the bending radius specified, for example, for general power cable, the bending radius can be 10 times of cable outer diameter. Special bending test device can be used to operate, cable is wound on bending cylinder, bending angle is usually 180 °, after bending, check whether cable surface has cracking phenomenon, can be directly observed by naked eye, or can be carefully checked by the aid of magnifying glass etc. If crack is found, record the position, length and quantity etc. of crack, in the field of cable low-temperature bending anti-cracking test, it is crucial to accurately evaluate the anti-cracking performance of cable under different working conditions, and the existing test device can only meet the test demand of single bending radius, when needing to simulate the various bending radius working conditions encountered by cable in actual laying and installation process, the existing device is often difficult to perform. SUMMARY

[0003] (One) technical problem to be solved

[0004] In order to solve the above problems of prior art, the utility model provides a kind of anti -cracking test device.

[0005] (Two) technical scheme

[0006] In order to achieve the above purpose, the main technical scheme adopted by the utility model includes:

[0007] A kind of anti -cracking test device, including bottom plate, stand, lifting mechanism, clamp, cylinder, adjusting sleeve and limit ring;

[0008] The stand is vertically arranged on the bottom plate;

[0009] The clamp is provided with two groups, and is oppositely arranged on the inner wall of the stand two sides;

[0010] The lifting mechanism is connected with the clamp, and controls two groups of clamps to lift synchronously;

[0011] The cylinder is fixedly installed on the inner wall surface of the stand;

[0012] The adjusting sleeve is sleeved on the cylinder, and the end of the cylinder is provided with external thread;

[0013] The limit ring is threadedly connected to the end of the cylinder.

[0014] Preferably, the lifting mechanism comprises a driving assembly, a lead screw and a lifting block;

[0015] The inner walls of the two sides of the stand are provided with lifting grooves;

[0016] The lead screw is vertically installed in the lifting groove;

[0017] The lifting block is threadedly connected in the lifting groove, and the lifting block is fixedly connected with the corresponding clamp; the groove wall of the lifting groove is provided with a lifting hole corresponding to the lifting track of the clamp.

[0018] Preferably, the driving assembly comprises a motor, a driving shaft, a first rotating disc, a second rotating disc, a third rotating disc and a fourth rotating disc;

[0019] The motor is installed on the top of the stand;

[0020] One end of the driving shaft is connected with the motor, and the other end of the driving shaft is sequentially connected with the first rotating disc and the second rotating disc;

[0021] The third rotating disc and the fourth rotating disc are respectively connected with the top end of two lead screws;

[0022] The first rotating disc and the third rotating disc and the second rotating disc and the fourth rotating disc are connected by synchronous belts.

[0023] Preferably, the clamp comprises a clamp seat, one side of the clamp seat is provided with a fixed clamp groove, a clamping plate is installed in the fixed clamp groove, a fixed screw is threadedly connected on the top of the clamp seat, and one end of the bottom of the fixed screw is rotatably connected with the clamping plate.

[0024] (Three) beneficial effects

[0025] The beneficial effects of the utility model lie in that the above technical scheme is adopted, the two ends of the cooled cable are respectively installed in the corresponding clamps, then the lifting mechanism is driven to drive the clamps to move downward, so that the cable is in contact with the cylinder, and under the action of the cylinder, the cable is bent, so that the cable low-temperature bending anti-cracking test is realized; when it is necessary to adjust the bending radius, the adjusting sleeve corresponding to the radius is sleeved on the cylinder, and the limiting ring is tightened, so that the installed adjusting sleeve is fixed, thereby meeting the test requirements of different bending radii; the structure of the utility model is simple, flexible and convenient to use, and is suitable for large-scale popularization and use. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a structural schematic view of an anti-cracking test device;

[0027] Figure 2 It is a main view structural schematic view of an anti-cracking test device;

[0028] Figure 3 For Figure 2 Enlarged schematic view of middle A part;

[0029] Figure 4 For a use state structural schematic view of anti-cracking test device.

[0030]

Explanation of reference numerals

[0031] 1, bottom plate;

[0032] 2, stand;

[0033] 3, lifting mechanism;

[0034] 31, motor; 32, first turntable; 33, second turntable; 34, third turntable; 35, fourth turntable; 36, screw rod; 37, lifting block;

[0035] 4, clamp;

[0036] 41, clamping seat; 42, clamping plate; 43, fixing screw rod;

[0037] 5, cylinder;

[0038] 6, adjusting sleeve;

[0039] 7, limiting ring. DETAILED DESCRIPTION

[0040] In order to better explain the utility model, so as to facilitate understanding, the following will be combined with the specific embodiments, the utility model is described in detail.

[0041] Please refer to Figures 1 to 4 The utility model provides a kind of anti-cracking test device, including bottom plate 1, stand 2, lifting mechanism 3, clamp 4, cylinder 5, adjusting sleeve 6 and limiting ring 7;

[0042] The stand 2 is vertically arranged on the bottom plate 1;

[0043] The clamp 4 is provided with two groups, and is oppositely arranged on the inner wall of the stand 2 two sides;

[0044] The lifting mechanism 3 is connected with the clamp 4, and controls two groups of the clamp 4 synchronous lifting;

[0045] The cylinder 5 is fixedly installed on the inner wall surface of the stand 2;

[0046] The adjusting sleeve 6 is sleeved on the cylinder 5, and the end of the cylinder 5 is provided with external thread;

[0047] The limiting ring 7 is threadedly connected at the end of the cylinder 5;

[0048] In use, the cooled cable is installed in the corresponding clamp 4, and the lifting mechanism 3 drives the clamp 4 to move downward, so that the cable is in contact with the cylinder 5, and the cable is bent under the action of the cylinder 5, thereby realizing the low-temperature bending and cracking resistance test of the cable. When the bending radius needs to be adjusted, the adjusting sleeve 6 corresponding to the radius is sleeved on the cylinder 5, and the limiting ring 7 is tightened to fix the installed adjusting sleeve 6, thereby meeting the test requirements of different bending radii. The structure is simple, flexible and convenient to use, and is suitable for large-scale popularization and use.

[0049] In this embodiment, the lifting mechanism 3 comprises a driving assembly, a lead screw 36 and a lifting block 37;

[0050] The inner walls of the two sides of the stand 2 are provided with lifting grooves;

[0051] The lead screw 36 is vertically installed in the lifting groove;

[0052] The lifting block 37 is threadedly connected in the lifting groove, and the lifting block 37 is fixedly connected with the corresponding clamp 4. The groove wall of the lifting groove is provided with a lifting hole corresponding to the lifting track of the clamp 4; the driving assembly comprises a motor 31, a driving shaft, a first rotating disc 32, a second rotating disc 33, a third rotating disc 34 and a fourth rotating disc 35;

[0053] The motor 31 is installed on the top of the stand 2;

[0054] One end of the driving shaft is connected with the motor 31, and the other end of the driving shaft is sequentially connected with the first rotating disc 32 and the second rotating disc 33;

[0055] The third rotating disc 34 and the fourth rotating disc 35 are respectively connected with the top end of the two lead screws 36;

[0056] The first rotating disc 32 and the third rotating disc 34, and the second rotating disc 33 and the fourth rotating disc 35 are connected by synchronous belts;

[0057] In use, the motor 31 drives the first rotating disc 32 and the second rotating disc 33 to rotate through the driving shaft. Under the action of the synchronous belt, the third rotating disc 34 and the fourth rotating disc 35 rotate synchronously, so that the two lead screws 36 rotate synchronously, and the lifting block 37 on the lead screw 36 rises and falls synchronously, thereby driving the clamp 4 to move synchronously.

[0058] In this embodiment, the clamp 4 comprises a clamp seat 41, one side of the clamp seat 41 is provided with a fixed clamp groove, a clamping plate 42 is installed in the fixed clamp groove, a fixed screw 43 is threadedly connected on the top of the clamp seat 41, and one end of the bottom of the fixed screw 43 is rotatably connected with the clamping plate 42;

[0059] In use, the end of the cable enters the fixed slot, and the end of the cable is fixed between the clamping plate 42 and the fixed slot by rotating the fixing screw 43.

[0060] The working principle of the utility model is as follows:

[0061] The two ends of the cooled cable are respectively installed in the corresponding clamps 4, and the lifting mechanism 3 is driven to drive the clamps 4 to move downwards, so that the cable is in contact with the cylinder 5, and under the action of the cylinder 5, the cable is bent, so that the cable low-temperature bending anti-cracking test is realized, when it is necessary to adjust the bending radius, the adjusting sleeve 6 of the corresponding radius is sleeved on the cylinder 5, and the limiting ring 7 is tightened, the installed adjusting sleeve 6 is fixed, so that the test demand of different bending radii is met, the structure of the utility model is simple, flexible and convenient to use, and is suitable for large-scale popularization and use.

[0062] The circuit and electronic components and modules are all prior art, and those skilled in the art can realize them without further description, and the content protected by the utility model does not involve improvement of software and methods.

[0063] The above is only an embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent transformation or direct or indirect application in related technical fields by using the contents of the utility model specification and drawings is also included in the patent protection range of the utility model.

[0064] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be properly combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An anti-cracking test device characterized by, The base plate, the stand, the lifting mechanism, the clamp, the cylinder, the adjusting sleeve and the limiting ring are included. The stand is vertically arranged on the base plate. The clamp is arranged with two groups and oppositely arranged on the inner walls of the stand. The lifting mechanism is connected with the clamp and controls the synchronous lifting of the two groups of clamps. The cylinder is fixedly installed on the inner wall surface of the stand. The adjusting sleeve is sleeved on the cylinder, and the end of the cylinder is provided with external threads. The limiting ring is threadedly connected to the end of the cylinder.

2. An anti-cracking test device according to claim 1, characterized in that The lifting mechanism includes a driving assembly, a lead screw and a lifting block. The inner walls of the two sides of the stand are provided with lifting grooves. The lead screw is vertically installed in the lifting groove. The lifting block is threadedly connected in the lifting groove, and the lifting block is fixedly connected with the corresponding clamp.

3. An anti-cracking test device according to claim 2, wherein The driving assembly includes a motor, a driving shaft, a first rotating disc, a second rotating disc, a third rotating disc and a fourth rotating disc. The motor is installed on the top of the stand. One end of the driving shaft is connected with the motor, and the other end of the driving shaft is sequentially connected with the first rotating disc and the second rotating disc. The third rotating disc and the fourth rotating disc are respectively connected with the top end of two lead screws. The first rotating disc and the third rotating disc and the second rotating disc and the fourth rotating disc are connected with synchronous belts.

4. An anti-cracking test device according to claim 1, wherein The clamp includes a clamp seat, a fixing clamp groove is formed on one side of the clamp seat, a clamping plate is installed in the fixing clamp groove, a fixing screw is threadedly connected to the top of the clamp seat, and one end of the bottom of the fixing screw is rotatably connected with the clamping plate.

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