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CN-122016464-A - Tensile sample strength detection equipment for cable conductor

CN122016464ACN 122016464 ACN122016464 ACN 122016464ACN-122016464-A

Abstract

The invention relates to the technical field of cable conductor tension detection, and provides tension sample strength detection equipment for a cable conductor, which comprises a detector base, the fixture is installed at the top of detection machine base, fixture includes the lower anchor clamps support frame of fixed mounting in detection machine base top. According to the invention, the worm can be rotated to drive the threaded rod to rotate by rotating the knob, so that the movable block moves downwards, the first clamping rod is driven to slide along the first guide groove, the L-shaped transmission plate is driven to rotate along the lower clamp support frame, and the positioning blocks are pulled to slide along the lower clamp support frame, so that the two positioning blocks clamp a cable conductor, the first air bag and the second air bag are inflated and squeeze the flexible wire mesh along with the downward movement of the movable block, the flexible wire mesh can be adhered to the cable surface along with the inflation of the first air bag and the second air bag, the clamping force is more uniformly distributed on the whole contact surface, and the stress concentration caused by local depression is avoided.

Inventors

  • WU CHENYANG
  • Niu Xiangting

Assignees

  • 青岛长城电缆集团有限公司

Dates

Publication Date
20260512
Application Date
20260126

Claims (10)

  1. 1. A tensile specimen strength detection device for a cable conductor comprises a detector base (1); the method is characterized in that: the top of the detector base (1) is provided with a clamping mechanism (2), and the clamping mechanism (2) comprises a lower clamp support frame (21) fixedly arranged at the top of the detector base (1); The inner wall swing joint of lower anchor clamps support frame (21) has worm (22), the one end fixedly connected with knob (23) of worm (22), the outer wall swing joint of worm (22) has worm wheel (24), the top fixedly connected with threaded rod (25) of worm wheel (24), the outer wall swing joint of threaded rod (25) has movable block (26), thread groove (3) have been seted up to the inside of movable block (26), the outer wall fixedly connected with first clamping rod (27) of movable block (26), the outer wall swing joint of first clamping rod (27) has L shape drive plate (271), the inner wall swing joint of L shape drive plate (271) has pivot (272), the inside swing joint of L shape drive plate (271) has second clamping rod (275), the outer wall fixedly connected with locating piece (28) of second clamping rod (275), the bottom fixedly connected with T shape slider (29) of locating piece (28), T shape spout (4) have been seted up to the inside of lower support frame (21).
  2. 2. A tensile specimen strength detecting apparatus for a cable conductor according to claim 1, wherein the knob (23) is constituted by a worm (22) and a lower jig support frame (21) to be rotated, the worm (22) is engaged with a worm wheel (24), the worm wheel (24) is constituted by a threaded rod (25) and the lower jig support frame (21) to be rotated, and the threaded rod (25) is screwed with a movable block (26) by a thread groove (3).
  3. 3. The tensile strength testing equipment for cable conductors according to claim 1, wherein a first guide groove (273) is formed in the L-shaped transmission plate (271), the L-shaped transmission plate (271) and the first clamping rod (27) form a sliding structure through the first guide groove (273), a second guide groove (274) is formed in the L-shaped transmission plate (271), and the L-shaped transmission plate (271) and the second clamping rod (275) form a sliding structure through the second guide groove (274).
  4. 4. The tensile strength testing equipment for cable conductors according to claim 1, wherein the L-shaped transmission plate (271) and the lower clamp support frame (21) form a rotating structure through a rotating shaft (272), and the T-shaped sliding block (29) and the lower clamp support frame (21) form a sliding structure through a T-shaped sliding groove (4).
  5. 5. The tensile strength testing equipment for cable conductors according to claim 1, wherein a side plate (281) is fixedly connected to the top of the positioning block (28), a limit post (282) is movably connected to the inside of the side plate (281), a baffle plate (283) is fixedly connected to the outer wall of the limit post (282), and a return spring (284) is arranged on one side of the baffle plate (283).
  6. 6. The tensile strength testing equipment for cable conductors according to claim 5, wherein the limiting posts (282) and the side plates (281) form a sliding structure, and the return springs (284) are sleeved on the outer walls of the limiting posts (282).
  7. 7. The tensile strength testing equipment for cable conductors according to claim 1, wherein the outer wall of the movable block (26) is fixedly connected with an L-shaped receiving rod (261), one end of the L-shaped receiving rod (261) is fixedly connected with a piston (262), the outer wall of the piston (262) is movably connected with an air cylinder (263), the outer wall of the air cylinder (263) is fixedly connected with an air delivery hose (264), the output end of the air delivery hose (264) is connected with a positioning block (28), the inner wall of the positioning block (28) is fixedly connected with a first air bag (265), the inner wall of the positioning block (28) is fixedly connected with a second air bag (266), and the inside of the positioning block (28) is fixedly connected with a flexible wire mesh (267).
  8. 8. The tensile strength testing equipment for a cable conductor according to claim 7, wherein the piston (262) and the air cylinder (263) form a sliding structure, and the L-shaped receiving rod (261) is symmetrically arranged with the central axis of the movable block (26).
  9. 9. The tensile strength testing equipment for cable conductors according to claim 1, wherein the top of the tester base (1) is fixedly connected with a stretching mechanism (5), the stretching mechanism (5) comprises a guide bracket (51) fixedly installed at the top of the tester base (1), a guide chute (52) is formed in the guide bracket (51), a driving motor (53) is fixedly connected to the top of the guide bracket (51), a first screw rod (54) is fixedly connected to an output shaft of the driving motor (53) through a coupler, a first thread block (55) is movably connected to the outer wall of the first screw rod (54), a synchronous belt assembly (56) is installed on the outer wall of the first screw rod (54), a second screw rod (57) is installed on the inner wall of the synchronous belt assembly (56), a second thread block (58) is movably connected to the outer wall of the second screw rod (57), a stretching frame (59) is fixedly connected to the outer wall of the second thread block (58), and a clamp (6) is installed at the bottom of the stretching frame (59).
  10. 10. A tensile specimen strength testing apparatus for a cable conductor according to claim 9, wherein said first screw (54) is screw-coupled with a first screw block (55), said second screw (57) is screw-coupled with a second screw block (58), said first screw (54) and said guide bracket (51) constitute a rotating structure, and said tension bracket (59) and said guide bracket (51) constitute a sliding structure through a guide chute (52).

Description

Tensile sample strength detection equipment for cable conductor Technical Field The invention relates to the technical field of cable conductor tension detection, in particular to tension sample strength detection equipment for a cable conductor. Background The high-temperature superconducting material is used as a new material in a cable conductor, has the characteristics of zero resistance and complete diamagnetism, and the mechanical properties such as tensile strength, elongation at break and the like of the high-temperature superconducting cable conductor serving as a core bearing component of a power transmission and signal transmission system directly determine the laying reliability, long-term service stability and external mechanical damage resistance of the cable product. In the fields of power grid construction, rail traffic signal transmission, industrial automation control, communication base station wiring and the like, a cable conductor is required to bear traction tension in the laying process, static stress in a long-term working environment, external vibration, impact and other dynamic loads, so that accurate tension strength detection is a key link of factory inspection, type test and quality tracing of a cable product; To this end, the patent of the bulletin number CN112461667B of authorizing discloses a device for cable quick stretching, which comprises a base, two sets of slide bars of top symmetry fixedly connected with of base, every group the quantity of slide bar is two, two sets of fixedly connected with roof between the top of slide bar, two sets of the lifter plate has been cup jointed in the slip between the outer disc of slide bar, the bottom symmetry fixedly connected with of bottom plate two three sections pneumatic cylinders, and the output of two three sections pneumatic cylinders all with the top fixed connection of lifter plate, the top fixedly connected with tension transducer of base. The invention solves the problems that when the existing cable stay cord equipment is used for carrying out tensile detection on a cable, the clamping operation is complicated and laborious when the cable sample is clamped, thereby reducing the efficiency of cable tensile detection and greatly increasing the labor intensity of staff; The prior art scheme has the following defects that when the cable conductor is clamped and positioned through the clamping plates or the clamping blocks, but because the core functional layer of the high-temperature superconductive cable conductor is of a multi-layer composite structure, stress concentration is easily caused by clamping the cable through a single clamping plate, and cable conductors with different sizes cannot be stably clamped, interlayer stripping occurs in the clamping process, so that the sample fails in a layering way without reaching the actual tensile strength. Disclosure of Invention The invention aims to provide tension sample strength detection equipment for cable conductors, which is used for solving the defect that the existing tension sample strength detection equipment for cable conductors cannot stably clamp cable conductors with different sizes. In order to solve the technical problems, the invention provides the technical scheme that the tensile sample strength detection equipment for the cable conductor comprises a detector base; the top of the detector base is provided with a clamping mechanism, and the clamping mechanism comprises a lower clamp support frame fixedly arranged at the top of the detector base; The inner wall swing joint of lower anchor clamps support frame has the worm, the one end fixedly connected with knob of worm, the outer wall swing joint of worm has the worm wheel, the top fixedly connected with threaded rod of worm wheel, the outer wall swing joint of threaded rod has the movable block, the screw thread groove has been seted up to the inside of movable block, the outer wall fixedly connected with first draw-in lever of movable block, the outer wall swing joint of first draw-in lever has L shape drive plate, the inner wall swing joint of L shape drive plate has the pivot, the inside swing joint of L shape drive plate has the second draw-in lever, the outer wall fixedly connected with locating piece of second draw-in lever, the bottom fixedly connected with T shape slider of locating piece, T shape spout has been seted up to the inside of lower anchor clamps support frame. Preferably, the knob and the lower clamp support frame form a rotating structure through a worm, the worm is meshed and connected with a worm wheel, the worm wheel and the lower clamp support frame form a rotating structure through a threaded rod, and the threaded rod is connected with the movable block through a thread groove. Preferably, the first guide groove is formed in the L-shaped transmission plate, the L-shaped transmission plate and the first clamping rod form a sliding structure through the first guide groove, the second g