CN111537352A - Cable tensile strength detection device - Google Patents
Cable tensile strength detection device Download PDFInfo
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- CN111537352A CN111537352A CN202010649099.3A CN202010649099A CN111537352A CN 111537352 A CN111537352 A CN 111537352A CN 202010649099 A CN202010649099 A CN 202010649099A CN 111537352 A CN111537352 A CN 111537352A
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- 238000001514 detection method Methods 0.000 title claims abstract description 48
- 238000012360 testing method Methods 0.000 claims abstract description 120
- 238000009864 tensile test Methods 0.000 claims abstract description 60
- 238000009434 installation Methods 0.000 claims description 17
- 230000002457 bidirectional effect Effects 0.000 claims description 11
- 230000033001 locomotion Effects 0.000 claims description 10
- 210000000078 claw Anatomy 0.000 claims description 8
- 230000008859 change Effects 0.000 abstract description 9
- 239000010410 layer Substances 0.000 description 9
- 230000001360 synchronised effect Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
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- 230000005540 biological transmission Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000013100 final test Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0017—Tensile
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Abstract
The invention discloses a cable tensile strength detection device, which comprises a guide rod and a tensile test group, wherein the tensile test group is connected to the guide rod in a sliding manner and is used for fixing a test cable, a control device for driving the tensile test group to carry out tensile test on the test cable is arranged on one side of the tensile test group, the tensile test block comprises two tensile test blocks, at least one auxiliary test block is arranged on the two tensile test blocks, the two tensile test blocks are respectively used for clamping two ends of the test cable, when in use, a plurality of connecting pieces can be synchronously contracted through a driving device, further, the distance between the tensile test blocks and the auxiliary test blocks can be synchronously increased or reduced, and therefore, when the test cable is stretched, the tensile quantity change data between all sections of the test cable can be intuitively reflected through the offset of the auxiliary test blocks, when the cable detection device is used for detecting, the detection steps of the cable can be effectively reduced.
Description
Technical Field
The invention relates to the technical field of transmission cables, in particular to a cable tensile strength detection device.
Background
The power cable is used for transmitting and distributing electric energy, is commonly used for urban underground power grids, power station leading-out lines, power supply inside industrial and mining enterprises and underwater power transmission lines crossing the river and the sea, and is required to have excellent insulating property in order to guarantee the operation and the service life of the cable, and also takes the thermal property, the laying mode and the tensile property of the cable into consideration, so that corresponding requirements are provided for a conductive wire core, insulation, a protective layer and the like of the cable.
In order to guarantee that the produced cable meets various indexes, relevant detection is needed to be carried out on the cable when the cable leaves a factory, the mode of the current detection on the stretching of the cable is mostly detected through a cable tensile testing machine, but in the actual use process, the cable passes through two ends of the fixed cable, the stretching of the cable is detected by gradually applying force and stretching, the mode can only detect the tensile strength of the cable, the conditions of accurate detection on the stress condition and stretching quantity change of each part of the cable during stretching can not be carried out, each item of data of the cable at the test position can be completely tested only through the matching use of various devices, and the detection is complicated.
Disclosure of Invention
Therefore, the invention provides a device for detecting the tensile strength of a cable, which aims to solve the problem that the stress condition of each section of the cable and the change of the tensile quantity of each section of the cable cannot be detected by detecting the cable through the conventional cable tensile testing machine in the prior art.
In order to achieve the above purpose, the invention provides the following technical scheme:
a cable tensile strength detection device comprises a guide rod and a tensile test group which is connected to the guide rod in a sliding mode and used for fixing a test cable, wherein a control device used for controlling the tensile test group to perform tensile test on the test cable is arranged on one side of the tensile test group;
the tensile test module comprises two tensile test blocks, at least one auxiliary test block is arranged between the two tensile test blocks, the two tensile test blocks are respectively used for clamping two ends of a test cable, and the auxiliary test blocks are used for carrying out auxiliary clamping on the test cable;
the control device comprises a connecting piece and a driving device;
the connecting piece comprises connecting rod bodies which correspond to the auxiliary testing blocks one by one, each connecting rod body comprises four connecting rods, the heads and the tails of the four connecting rods are hinged through rotating shafts, so that the connecting rod bodies are quadrangular and have four hinged ends, the hinged ends of the connecting rod bodies, which are positioned at the tops, are rotatably connected with the auxiliary testing blocks, and the hinged ends, which are positioned at the side edges, of the adjacent connecting rod bodies are hinged with each other through the rotating shafts; a connecting rod is connected to a hinged shaft positioned on the outer side of the connecting rod body positioned at the two ends of the connecting piece, and the connecting rod is rotatably connected with the tensile test block;
drive arrangement is used for through the flexible tensile test piece of drive of connecting piece and supplementary test piece simultaneous movement to test the tensile detection of cable, includes:
a bidirectional screw driven by a driving motor;
the control blocks are controlled by the bidirectional screw to move oppositely or relatively, and the control blocks are connected with push blocks in a sliding manner; the hinged shafts positioned on the outer sides of the two connecting rod bodies positioned at the two ends of the connecting piece are respectively and rotatably connected with one push block;
when the connecting piece stretches out and draws back, the ejector pad slides on the control block along the direction of perpendicular to two-way screw rod.
Optionally, a sliding rod is connected between the two pushing blocks, a sliding groove is formed in the sliding rod, and the hinged end of the connecting rod body located on the side edge is slidably arranged in the sliding groove.
Optionally, the auxiliary test piece orientation the installation trench has been seted up to the one end of connecting piece the installation trench sliding connection has the detection piece, just detect the piece with the hinged end that the connecting rod body is located the top rotates to be connected, is located the one end that the auxiliary test piece kept away from the detection piece is provided with the first relative position mounting that is used for fixing the test cable.
Optionally, the both ends of detecting the piece all are provided with the positioning spring of arranging in on the installation trench lateral wall detect the piece on still seted up the constant head tank rotate on the supplementary test piece and be connected with V type stopper, V type stopper is used for fixing the position of detecting the piece with the constant head tank gomphosis.
Optionally, the auxiliary test block is provided with offset scale marks and stressed scale marks, the detection block is provided with pointers pointing to the offset scale marks and the stressed scale marks, and the offset scale marks and the stressed scale marks are respectively used for detecting the stretching amount and the stressed condition of each section of the test cable through the offset position of the detection block.
Optionally, one side of the tensile test block towards the auxiliary test block is provided with a tension sensor, and one side of the tension sensor towards the auxiliary test block is sequentially provided with a wire core fixing part and a wrapping layer fixing part which are used for fixing one end of the test cable.
Optionally, the wire core fixing piece, the wrapping layer fixing piece and the relative position fixing piece each include an installation ring and a plurality of fixing jaws movably connected to the installation ring through springs, and the plurality of fixing jaws are arranged in an annular array around a central axis of the installation ring; the mounting ring is also rotatably connected with a control ring, a control groove is formed in the control ring, the outer end of the fixed jaw is positioned in the control groove, and the fixed jaw abuts against the groove wall of the control groove; the groove depth of the control groove is gradually deepened along the circumferential direction of the control ring, when the control ring rotates, the fixed clamping jaws slide in the control groove, and the supporting action of the groove walls of the control groove enables the fixed clamping jaws to move synchronously in opposite directions or in relative motion.
Optionally, one end of the fixing jaw, which is far away from the control groove, is of an arc-shaped structure.
The invention has the following advantages:
when the cable tensile testing device is used, the connecting pieces can be synchronously contracted through the driving device, and the distance between the tensile testing block and the auxiliary testing block can be further synchronously increased or reduced, so that the tensile quantity change data among all sections of the tested cable can be intuitively reflected through the offset of the auxiliary testing block when the cable is tensile tested, the detection steps of the cable can be effectively reduced during detection, and the detection is more convenient.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.
FIG. 1 is a schematic overall structure diagram of an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of an auxiliary test block according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a relative position fixing element according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a partial structure of a tensile test block according to an embodiment of the present invention;
fig. 5 is an enlarged view of a portion a of fig. 1.
In the figure:
1-a guide bar; 2-tensile test group; 3-a control device; 4-tensile test block; 5-a connector; 6-auxiliary test block; 7-a drive device;
401-a tension sensor; 402-a core retainer; 403-wrapping layer fixing piece; 404-a mounting ring; 405-a fixed jaw; 406-control loop; 407-control slot;
601-installing a slot position; 602-a detection block; 603-relative position fixing member; 604-a positioning spring; 605-a positioning groove; 606-a V-shaped stop block; 607-a pointer; 608-offset tick marks; 609-force scale mark;
701-a bidirectional screw; 702-a control block; 703-a push block; 704-a sliding bar; 705-sliding groove.
Detailed Description
The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 5, the present invention provides a cable tensile strength detection apparatus, which includes a guide bar 1 and a tensile testing group 2 slidably connected to the guide bar 1 and used for fixing a test cable, wherein a control apparatus 3 for driving the tensile testing group 2 to perform a tensile test on the test cable is disposed at one side of the tensile testing group 2.
The 2 blocks of tensile test group include two tensile test pieces 4, are located and are provided with an auxiliary test piece 6 between two tensile test pieces 4 at least, and two tensile test pieces 4 are used for the both ends of centre gripping test cable respectively, and auxiliary test piece 6 is used for carrying out supplementary centre gripping to the test cable.
Tensile test piece 4 is mainly for carrying out the mounting fixed to the test cable, fixes the back to the test cable promptly, makes two tensile test pieces 4 carry out progressively and keeps away from the motion mutually, then can realize the tensile detection to the test cable.
The actual quantity that sets up of auxiliary test piece 6 can set up according to the test cable length that detects, guarantees when using, can realize the size of the atress size of each section of more accurate detection test cable and the size of each section tensile strength through a plurality of auxiliary test pieces 6.
The connecting piece 5 of the control device 3 comprises connecting rod bodies which correspond to the auxiliary testing blocks 6 one by one, each connecting rod body comprises four connecting rods, the heads and the tails of the four connecting rods are hinged through rotating shafts, so that each connecting rod body is quadrangular and is provided with four hinged ends, the hinged end of each connecting rod body at the top is rotatably connected with the auxiliary testing block 6, and the hinged ends of the adjacent connecting rod bodies at the side edges are hinged with each other through the rotating shafts; and in the connecting rod bodies positioned at the two ends of the connecting piece 5, a connecting rod is connected on the articulated shaft positioned at the outer side, and the connecting rod is rotatably connected with the tensile testing block 4.
a bidirectional screw 701 driven by a driving motor;
the control blocks 702 are positioned at two ends of the bidirectional screw 701, the control blocks 702 are controlled by the bidirectional screw 701 to move oppositely or relatively, and the control blocks 702 are connected with push blocks 703 in a sliding way; of the two connecting rod bodies positioned at the two ends of the connecting piece 5, the hinge shaft positioned at the outer side is respectively and rotatably connected with a push block 703;
when the connecting member 5 is extended and contracted, the push block 703 slides on the control block 702 in a direction perpendicular to the bidirectional screw 701.
After a plurality of connecting rod body links together, can make the connecting piece constitute the flexible structure of a similar flexible door, in order to realize the end position that a plurality of connecting rod body phase rotate and connect, can carry out synchronous shrink or expansion, test cable is when stretching promptly, its ideal state carries out equivalent extension for each section, and after making tensile test piece 4 and auxiliary test piece 6 fix the test cable end to heart, make tensile test piece 4 and auxiliary test piece 6 carry out synchronous shrink and extension, can effectual simulation test cable is tensile under the ideal state, further the change condition of accessible auxiliary test piece 6 for the position that dehumidifies, come the change condition of each section tensile volume of reaction test cable.
Because two adjacent articulated one ends of connecting piece mutually rotate with tensile test piece 4 or supplementary test piece 6 and be connected, and tensile test piece 4 and supplementary test piece 6 all sliding connection are on guide bar 1, consequently when connecting piece 5 contracts, the central point position of the connecting rod body changes, connecting piece 5 sliding connection is on control piece 702, can cushion the position change of connecting rod body central point, consequently when making control piece 702 carry out opposite or relative motion through two-way screw 701, can be through the cooperation of connecting piece 5 with control piece 702, realize the normal flexible of connecting piece 5.
Two ejector pads 703 are connected through slide bar 704, have seted up sliding tray 705 on slide bar 704, and sliding tray 705 is used for spacing the direction of motion of connecting piece 5 articulated turning point, and slide bar 704 mainly is used for making a plurality of connecting rod bodies be in synchronous horizontal position, avoids a plurality of connecting rod bodies when synchronous motion, can't realize tensile test piece 4 and supplementary test piece 6 and carry out the problem of synchronous expansion.
As shown in fig. 1, 2 and 5, an installation slot 601 is opened at one end of the auxiliary testing block 6 facing the connecting member 5, a detecting block 602 is slidably connected in the installation slot 601, and one end of the detecting block 602 hinged to the two adjacent connecting rod bodies is rotatably connected, and a first relative position fixing member 603 for fixing the testing cable is disposed at one end of the auxiliary testing block 6 away from the detecting block 602.
Detect the both ends of piece 602 and all be provided with the positioning spring 604 of arranging in on the installation trench 601 lateral wall, the elasticity coefficient of two positioning springs 604 is the same, and when no external force, detect the central point department of putting that piece 602 is in installation groove 601, still seted up constant head tank 605 on detecting piece 602, rotate on supplementary test piece 6 and be connected with V type stopper 606, V type stopper 606 is used for fixing the position of detecting piece 602 with constant head tank 605 gomphosis.
In the using process, the two ends of the test cable need to be fixed through the tensile test block 4, the tensile test block 4 is further driven to move by the driving device 7, so that the test cable is in a stretched state, and further after the auxiliary test block 6 is fixed with the test cable together, the problem that the test cable is fixed with the auxiliary test block 6 in a loose state, and a large deviation occurs in a detection result easily during tensile detection can be avoided;
the V-shaped stopper 606 is mainly used to fix the relative positions of the detection block 602 and the auxiliary test block 6 by engaging with the positioning groove 605, so as to ensure that the auxiliary test block 6 is in a state without external force after the test cable and the auxiliary test block 6 are fixed together, thereby further improving the accuracy of detection.
When detecting the test cable, tensile test piece 4 and supplementary test piece 6 carry out synchronous expansion, influence because of the material and all aspects factor of cable, lead to the test cable can't carry out equivalent flexible with the ideal state, this just causes the great problem of local tensile volume can appear in the test cable, and before tensile, loop through tensile test piece 4 and supplementary test piece 6 and fix the test cable, and then when tensile, can regard as the standard with the position that detects piece 602, the realization detects the displacement volume of supplementary detection piece, thereby the tensile volume of each section of test cable is reacted to the supplementary displacement variation who detects piece 6 of accessible, can further improvement detection precision.
The detection block 602 is provided with a pointer 607, the auxiliary test block 6 is provided with an offset scale mark 608 and a stress scale mark 609 which are matched with the pointer 607, and the offset scale mark 608 and the stress scale mark 609 are respectively used for detecting the stretching amount and the stress condition of each section of the test cable through the offset position of the detection block 602.
The pointer 607 is preferably made of a transparent material to allow the user to view the data information of the offset tick marks 608 and the force tick marks 609 through the pointer 607.
The positioning spring 604 plays a role in assisting in detecting the tension of each section of the test cable while positioning, in the actual use process, the stress scale mark 609 is made according to the elastic coefficient of the positioning spring 604, namely the stress condition of the test cable is reflected by the deformation of the positioning spring 604, so that the stress difference between each section of the test cable can be detected while the stretching amount between each section of the test cable is detected, the stress between each section of the test cable can be further calculated according to the total tension, the stress condition of the cable in use can be deduced accordingly, during use, all data of the test cable can be synchronously detected, the detection steps can be reduced, and the detection is more convenient.
As shown in fig. 1, 3 and 4, a tension sensor 401 is disposed on one side of the tensile testing block 4 facing the auxiliary testing block 6, and a core fixing member 402 and a wrapping layer fixing member 403 for fixing one end of the test cable are sequentially disposed on one side of the tension sensor 401 facing the auxiliary testing block 6.
The wire core fixing piece 402, the wrapping layer fixing piece 403 and the relative position fixing piece 603 respectively comprise an installation ring 404 and a plurality of fixing claws 405 connected to the installation ring 404 in a sliding mode through springs, the fixing claws 405 are arranged in an annular array mode relative to the central axis of the installation ring 404, a control ring 406 is further connected to the installation ring 404 in a rotating mode, control grooves 407 matched with the fixing claws 405 are formed in the control ring 406, the groove depth of the control grooves 407 is gradually increased, the groove bottoms of the control grooves 407 are preferably of arc-shaped structures, the fixing claws 405 are arranged oppositely, and the control ring 406 enables the fixing claws 405 to move synchronously in opposite directions or relatively through controlling the embedded positions of the fixing claws 405 and the control grooves 407.
During the use, can change the position of control groove 407 through rotating control ring 406, fixed jack catch 405 is motionless, and then can change the position of control groove 407 and fixed jack catch 405 looks gomphosis, thereby when changing its gomphosis position, can extrude fixed jack catch 405 through control groove 407, make fixed jack catch 405 move towards the one side of keeping away from control groove 407, because of a plurality of fixed jack catches 405 are the central axis annular array setting about collar 404, thereby when rotating control ring 406, can drive a plurality of fixed jack catches 405 and carry out synchronous motion, further then can fix the test cable, can improve fixed portability.
The one end that the control groove 407 is kept away from to fixed jack catch 405 is the arc structure, its mainly used improve with the area of contact between the test cable to this prevents the easy gliding problem that appears of test cable, the one end that the control groove 407 is kept away from to fixed jack catch 405 still is provided with intensive anti-skidding bump, the anti-skidding bump is preferred rubber materials to be made, be used for when fixed, increase and test the frictional force between the cable, with this avoid when tensile detection, its easy gliding problem that appears.
Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (8)
1. The device for detecting the tensile strength of the cable is characterized by comprising a guide rod (1) and a tensile test group (2) which is connected to the guide rod (1) in a sliding manner and used for fixing the test cable, wherein a control device (3) used for controlling the tensile test group (2) to perform tensile test on the test cable is arranged on one side of the tensile test group (2);
the tensile test group (2) block comprises two tensile test blocks (4), at least one auxiliary test block (6) is arranged between the two tensile test blocks (4), the two tensile test blocks (4) are respectively used for clamping two ends of a test cable, and the auxiliary test block (6) is used for carrying out auxiliary clamping on the test cable;
the control device (3) comprises a connecting piece (5) and a driving device (7);
the connecting pieces (5) comprise connecting rod bodies which correspond to the auxiliary testing blocks (6) one by one, each connecting rod body comprises four connecting rods, the heads and the tails of the four connecting rods are hinged through rotating shafts, so that the connecting rod body is quadrilateral and provided with four hinged ends, the hinged end of the connecting rod body at the top is rotatably connected with the auxiliary testing blocks (6), and the hinged ends of the adjacent connecting rod bodies at the side edges are hinged with each other through the rotating shafts; a connecting rod is connected to a hinged shaft positioned on the outer side of the connecting rod body positioned at the two ends of the connecting piece (5), and the connecting rod is rotatably connected with the tensile test block (4);
drive arrangement (7) are used for stretching out and drawing test piece (4) and supplementary test piece (6) simultaneous movement to test the cable through flexible drive of connecting piece (5) and carry out tensile detection, include:
a bidirectional screw (701) driven by a driving motor;
the control blocks (702) are positioned at two ends of the bidirectional screw (701), the control blocks (702) are controlled by the bidirectional screw (701) to move oppositely or relatively, and a push block (703) is connected on the control blocks (702) in a sliding way; the hinged shafts positioned on the outer sides of the two connecting rod bodies positioned at the two ends of the connecting piece (5) are respectively and rotatably connected with the push block (703);
when the connecting piece (5) stretches, the push block (703) slides on the control block (702) along the direction perpendicular to the bidirectional screw (701).
2. The cable tensile strength detecting device according to claim 1, wherein a sliding rod (704) is connected between the two pushing blocks (703), a sliding groove (705) is formed in the sliding rod (704), and the hinged end of the connecting rod body located at the side edge is slidably disposed in the sliding groove (705).
3. The cable tensile strength detection device according to claim 1, wherein an installation slot (601) is formed in one end, facing the connecting piece (5), of the auxiliary test block (6), a detection block (602) is slidably connected in the installation slot (601), the detection block (602) is rotatably connected with the hinged end of the connecting rod body at the top, and a first relative position fixing piece (603) for fixing the test cable is arranged at one end, far away from the detection block (602), of the auxiliary test block (6).
4. The cable tensile strength detection device according to claim 3, wherein both ends of the detection block (602) are provided with positioning springs (604) arranged on the side walls of the installation groove (601), the detection block (602) is further provided with a positioning groove (605), the auxiliary test block (6) is rotatably connected with a V-shaped limiting block (606), and the V-shaped limiting block (606) is used for being embedded with the positioning groove (605) to fix the position of the detection block (602).
5. The cable tensile strength detection device according to claim 3, wherein the auxiliary test block (6) is provided with an offset scale mark (608) and a stress scale mark (609), the detection block (602) is provided with a pointer (607) pointing to the offset scale mark (608) and the stress scale mark (609), and the offset scale mark (608) and the stress scale mark (609) are respectively used for detecting the tensile amount and the stress condition of each section of the test cable through the offset position of the detection block (602).
6. The cable tensile strength detection device according to claim 3, wherein a tension sensor (401) is disposed on a side of the tensile test block (4) facing the auxiliary test block (6), and a core fixing member (402) and a wrapping layer fixing member (403) for fixing one end of the test cable are sequentially disposed on a side of the tension sensor (401) facing the auxiliary test block (6).
7. The cable tensile strength testing apparatus of claim 6, wherein each of the core holder (402), the sheath holder (403) and the relative position holder (603) comprises a mounting ring (404) and a plurality of holding claws (405) movably connected to the mounting ring (404) by springs, the holding claws (405) being arranged in an annular array about a central axis of the mounting ring (404); the mounting ring (404) is further rotatably connected with a control ring (406), a control groove (407) is formed in the control ring (406), the outer end of the fixed jaw (405) is located in the control groove (407), and the fixed jaw (405) abuts against the groove wall of the control groove (407); the depth of the control groove (407) is gradually deepened along the circumferential direction of the control ring (406), and when the control ring (406) rotates, the fixed jaws (405) slide in the control groove (407), and the plurality of fixed jaws (405) synchronously move in the opposite directions or in the relative direction under the abutting action of the groove walls of the control groove (407).
8. A cable tensile strength testing device according to claim 7, wherein an end of said fixing jaw (405) away from said control slot (407) is of an arc-shaped structure.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010649099.3A CN111537352B (en) | 2020-07-08 | 2020-07-08 | Cable tensile strength detection device |
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| CN202010649099.3A CN111537352B (en) | 2020-07-08 | 2020-07-08 | Cable tensile strength detection device |
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| CN111537352B CN111537352B (en) | 2020-10-09 |
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| CN112129622A (en) * | 2020-09-14 | 2020-12-25 | 南京诚征电子商务有限公司 | Cable strength automatic testing device based on intelligent manufacturing |
| CN112146982A (en) * | 2020-09-23 | 2020-12-29 | 游丰盛 | Prestressed tendon elongation tensile detection device capable of removing surface skin |
| CN112345386A (en) * | 2020-09-21 | 2021-02-09 | 国网河北省电力有限公司邢台供电分公司 | Cable performance comprehensive testing device |
| CN112525716A (en) * | 2020-12-09 | 2021-03-19 | 深圳新海讯光电有限公司 | Detection device and detection method for detecting optical fiber pressure |
| CN112577821A (en) * | 2020-12-03 | 2021-03-30 | 博硕科技(江西)有限公司 | Tensile detection device is used in data line production of supporting game machine high definition transmission |
| CN113588425A (en) * | 2021-09-29 | 2021-11-02 | 长沙康飞电子科技有限公司 | Cable testing device applied to assembly line operation |
| CN114427928A (en) * | 2022-02-07 | 2022-05-03 | 北京半导体专用设备研究所（中国电子科技集团公司第四十五研究所） | Multi-direction disturbance force testing device and testing method for cable |
| CN114441294A (en) * | 2022-02-14 | 2022-05-06 | 国网吉林省电力有限公司长春供电公司 | Cable tensile strength test device |
| CN117367971A (en) * | 2023-12-06 | 2024-01-09 | 深圳市铂电科技有限公司 | Tensile detector of temperature sensor |
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| CN112146982A (en) * | 2020-09-23 | 2020-12-29 | 游丰盛 | Prestressed tendon elongation tensile detection device capable of removing surface skin |
| CN112577821A (en) * | 2020-12-03 | 2021-03-30 | 博硕科技(江西)有限公司 | Tensile detection device is used in data line production of supporting game machine high definition transmission |
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