CN111238928A - Multi-strand wire elongation at break detecting instrument - Google Patents

Multi-strand wire elongation at break detecting instrument Download PDF

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Publication number
CN111238928A
CN111238928A CN202010163172.6A CN202010163172A CN111238928A CN 111238928 A CN111238928 A CN 111238928A CN 202010163172 A CN202010163172 A CN 202010163172A CN 111238928 A CN111238928 A CN 111238928A
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China
Prior art keywords
sliding
cavity
bottom wall
winding
groove
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Withdrawn
Application number
CN202010163172.6A
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Chinese (zh)
Inventor
不公告发明人
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Ningbo Miangen Technology Co Ltd
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Ningbo Miangen Technology Co Ltd
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Priority to CN202010163172.6A priority Critical patent/CN111238928A/en
Publication of CN111238928A publication Critical patent/CN111238928A/en
Withdrawn legal-status Critical Current

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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
    • G01N3/06—Special adaptations of indicating or recording means
    • G01N3/062—Special adaptations of indicating or recording means with mechanical indicating or recording means
    • 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
    • G01N3/04—Chucks
    • 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
    • G01N3/06—Special adaptations of indicating or recording means
    • G01N3/066—Special adaptations of indicating or recording means with electrical indicating or recording means
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • 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
    • G01N2203/0001—Type of application of the stress
    • G01N2203/0003—Steady
    • 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
    • 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
    • G01N2203/02—Details not specific for a particular testing method
    • G01N2203/026—Specifications of the specimen
    • G01N2203/0262—Shape of the specimen
    • G01N2203/0278—Thin specimens
    • G01N2203/028—One dimensional, e.g. filaments, wires, ropes or cables
    • 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
    • G01N2203/02—Details not specific for a particular testing method
    • G01N2203/06—Indicating or recording means; Sensing means
    • G01N2203/0605—Mechanical indicating, recording or sensing means
    • 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
    • G01N2203/02—Details not specific for a particular testing method
    • G01N2203/06—Indicating or recording means; Sensing means
    • G01N2203/0617—Electrical or magnetic indicating, recording or sensing means

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)

Abstract

The invention relates to the field of electric power, in particular to a multi-strand wire breaking elongation rate detecting instrument which comprises a machine body and guide chutes which are arranged in the top wall of the machine body in a bilateral symmetry mode and have upward openings, wherein a sliding frame is arranged in the guide chutes in a sliding mode, threaded holes which are communicated left and right are arranged in the sliding frame, threaded rods with tail ends extending into a transmission cavity arranged between the left guide chute and the right guide chute are connected in the threaded holes in a threaded manner, first bevel gears are fixedly arranged at the tail ends of the threaded rods in the transmission cavity, a first motor is fixedly arranged in the bottom wall of the transmission cavity, and second bevel gears meshed with the left and right first bevel gears are fixedly arranged at the tail ends of output shafts of the first motor. The tensile position is marked when the resistance changes, so that the elongation of the wire is measured according to the mark, the wire is fixed conveniently, the wire can be stretched after being straightened, and the wire is rejected due to the fact that the wire is not directly interfered, so that the measurement is more accurate.

Description

Multi-strand wire elongation at break detecting instrument
Technical Field
The invention relates to the field of electric power, in particular to a multi-strand wire elongation at break detection instrument.
Background
When the wire is produced, the breaking elongation of the wire must be measured as an important index influencing the quality of the wire, and when the traditional wire breaking elongation is measured, the wire is inconvenient to fix, and the measuring result is inaccurate due to inaccurate drawing length record, so that a multi-strand wire breaking elongation detecting instrument is needed to be arranged to solve the problems.
Disclosure of Invention
The invention aims to provide a multi-strand wire elongation at break detection instrument which can overcome the defects in the prior art, so that the practicability of equipment is improved.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a multi-strand wire breaking elongation rate detecting instrument, which comprises a machine body and guide chutes which are symmetrically arranged in the top wall of the machine body and provided with upward openings, wherein sliding frames are arranged in the guide chutes in a left-right mode, threaded holes which are communicated in a left-right mode are formed in the sliding frames, threaded rods with tail ends extending into a transmission cavity arranged between the left guide chute and the right guide chute are connected in the threaded holes in a threaded manner, first bevel gears are fixedly arranged at the tail ends of the threaded rods in the transmission cavity, a first motor is fixedly arranged in the bottom wall of the transmission cavity, second bevel gears meshed with the left bevel gears and the right bevel gears are fixedly arranged at the tail ends of output shafts of the first motor, a first sliding cavity is arranged in the end wall, close to one side, of the left sliding frame and the right, the winding device is characterized in that a winding wheel is rotatably arranged in the winding cavity, fixing holes for fixing a lead are arranged in the winding wheel in a left-right through mode, the left winding wheel and the right winding wheel are connected with a resistance measuring instrument fixedly arranged on the top wall of the machine body in series through a power line, a worm gear cavity is arranged in the rear side end wall of the winding cavity, a winding device for driving the winding wheel to rotate is arranged in the worm gear cavity, the winding device can drive the winding wheel to rotate to wind the lead inserted into the fixing holes, a rotating cavity with an upward opening is arranged in the bottom wall of the first sliding cavity, a locking device is arranged in the rotating cavity and can lock the sliding frame in the guide chute, the locking device is unlocked after the lead is wound and tightened by the left winding device and the right winding device, so that the left sliding frame and the right sliding frame can be conveniently far away from the tensile lead, and a meshing cavity is arranged in, the bottom wall of the meshing cavity is internally communicated with a second sliding cavity, a second sliding block is slidably arranged in the second sliding cavity, a marking device is arranged in the second sliding block, the marking device marks the bottom wall of the guide sliding groove when the resistance value of the lead detected by the resistance measuring instrument changes suddenly, and the stretching length of the lead at the moment can be known through the scales on the bottom wall of the guide sliding groove corresponding to the marks.
Further, the winding device comprises a first rotating shaft which is rotatably arranged between the worm wheel cavity and the winding cavity and is fixedly connected with the winding wheel, a worm wheel is fixedly arranged at the tail end of the first rotating shaft in the worm wheel cavity, a worm which is meshed with the worm wheel is rotatably arranged in the worm wheel cavity, a third sliding cavity is arranged in the end wall of one side of the meshing cavity, which is far away from the first sliding cavity, a spline sleeve is rotatably arranged between the third sliding cavity and the first sliding cavity, a spline hole which is communicated from left to right is arranged in the spline sleeve, one side of the worm, which is far away from the first sliding block, extends into the spline hole and is in spline connection with the spline hole, the tail end of the worm extends into the third sliding cavity, the tail end of the worm is rotatably arranged in a third sliding block which is slidably arranged in the third sliding cavity, and a first spring is arranged between the third sliding block and the end wall of one side of the third sliding, and a first gear is fixedly arranged on the outer surface of the spline sleeve in the meshing cavity.
Further, the locking device comprises a second rotating shaft which is rotatably arranged in the rotating cavity, the outer surface of the second rotating shaft is fixedly provided with a cam and a second gear which is positioned at the rear side of the cam and is meshed with a first rack fixedly arranged on the bottom wall of the first sliding block, a first sliding groove with an upward opening is arranged in the bottom wall of the rotating cavity, a second rack is arranged in the first sliding groove in a sliding manner, a second sliding groove is arranged in the bottom wall of the sliding frame of the first sliding groove with a downward opening, a third rack with a tail end extending into a locking groove with an upward opening arranged in the top wall of the guide sliding groove is arranged in the second sliding groove in a sliding manner, a second spring is arranged between the third rack and the top wall of the second sliding groove, a gear cavity is communicated between the second sliding groove and the first sliding groove, and a third gear meshed with the second rack and the third rack is rotatably arranged in the gear cavity.
Furthermore, the marking device comprises a third sliding groove with a downward opening, which is arranged in the bottom wall of the second sliding block, a marking pen is arranged in the third sliding groove in a sliding manner, a third spring is arranged between the marking pen and the top wall of the third sliding groove, a through hole is arranged in the bottom wall of the second sliding cavity, a fourth sliding cavity is arranged in the end wall of one side of the meshing cavity, which is far away from the first sliding cavity, a fourth sliding block is arranged in the fourth sliding cavity in a sliding manner, a second motor is fixedly arranged in the end wall of one side of the fourth sliding block, which is close to the meshing cavity, a fourth gear meshed with the first gear is fixedly arranged at the tail end of an output shaft of the second motor, the fourth gear can be meshed with a fourth rack fixedly arranged on the top wall of the second sliding block, and a fourth sliding groove penetrating through the bottom wall of the sliding frame is arranged in the, the fourth sliding groove is internally provided with a sliding rod which is fixedly connected with the fourth sliding block in a sliding manner, and a groove with an upward opening is arranged in the bottom wall of the guide sliding groove.
The invention has the beneficial effects that: the instrument for detecting the breaking elongation of the multi-strand wire can realize the stretching of the multi-strand wire, measure the resistance of the wire during stretching, mark the stretching position during resistance change, measure the elongation of the wire according to the mark, conveniently fix the wire by equipment, stretch the wire after the wire is straightened, and eliminate the interference of the wire due to non-straightness, so that the measurement is more accurate.
Drawings
In order to more clearly illustrate the embodiments of the 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, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic diagram of the overall structure of an apparatus for detecting elongation at break of a multi-strand wire according to the present invention.
Fig. 2 is a schematic view of the structure a-a in fig. 1.
Fig. 3 is a schematic diagram of the structure B-B in fig. 2.
Fig. 4 is a schematic diagram of the structure C-C in fig. 3.
Detailed Description
The invention will now be described in detail with reference to fig. 1-4, wherein for ease of description the orientations described hereinafter are now defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.
The multi-strand wire breaking elongation rate detecting instrument described in conjunction with the attached fig. 1-4 comprises a body 10 and guide chutes 11 with upward openings symmetrically arranged in the top wall of the body 10, sliding frames 14 slidably arranged in the guide chutes 11, threaded holes 13 penetrating left and right in the sliding frames 14, threaded rods 12 with ends extending into a transmission cavity 18 arranged between the left and right guide chutes 11 and connected with the threaded rods 13 in a threaded manner, first bevel gears 17 fixedly arranged at the ends of the threaded rods 12 in the transmission cavity 18, a first motor 15 fixedly arranged in the bottom wall of the transmission cavity 18, second bevel gears 16 engaged with the left and right first bevel gears 17 and fixedly arranged at the ends of output shafts of the first motor 15, and first sliding cavities 57 arranged in the end walls of the left and right sliding frames 14 close to each other, a first sliding block 24 is slidably arranged in the first sliding cavity 57, a winding cavity 25 is arranged in the first sliding block 24, a winding wheel 21 is rotatably arranged in the winding cavity 25, fixing holes 22 for fixing a wire are arranged in the winding wheel 21 in a left-right through manner, the left winding wheel 21 and the right winding wheel 21 are connected in series with a resistance measuring instrument 19 fixedly arranged on the top wall of the machine body 10 through an electrified wire 20, a worm wheel cavity 27 is arranged in the rear end wall of the winding cavity 25, a winding device 99 for driving the winding wheel 21 to rotate is arranged in the worm wheel cavity 27, the winding device 99 can drive the winding wheel 21 to rotate to wind the wire inserted into the fixing hole 22, a rotating cavity 34 with an upward opening is arranged in the bottom wall of the first sliding cavity 57, a locking device 98 is arranged in the rotating cavity 34, and the sliding frame 14 can be locked in the guide sliding groove 11 by the locking device 98, the locking device 98 is unlocked after the left and right winding devices 99 wind and tighten the wires, so that the left and right sliding frames 14 are away from each other to stretch the wires, the end wall of one side, away from the first sliding block 24, of the first sliding cavity 57 is internally provided with a meshing cavity 56, the bottom wall of the meshing cavity 56 is internally communicated with a second sliding cavity 59, the second sliding cavity 59 is internally provided with a second sliding block 60 in a sliding manner, a marking device 97 is arranged in the second sliding block 60, the marking device 97 marks the bottom wall of the guide sliding groove 11 when the resistance value of the wire detected by the resistance measuring instrument 19 changes suddenly, and the stretching length of the wire at the moment can be known by marking the corresponding scale on the bottom wall of the guide sliding groove 11.
Advantageously, the winding device 99 includes a first rotating shaft 26 fixedly connected to the winding wheel 21 and rotatably disposed between the worm-wheel cavity 27 and the winding cavity 25, a worm wheel 28 is fixedly disposed at an end of the first rotating shaft 26 in the worm-wheel cavity 27, a worm 29 engaged with the worm wheel 28 is rotatably disposed in the worm-wheel cavity 27, a third sliding cavity 54 is disposed in an end wall of the engagement cavity 56 on a side away from the first sliding cavity 57, a spline housing 50 is rotatably disposed between the third sliding cavity 54 and the first sliding cavity 57, a spline hole 51 penetrating from left to right is disposed in the spline housing 50, a side of the worm 29 away from the first sliding block 24 extends into the spline hole 51 and is in spline connection with the spline hole 51, an end of the worm 29 extends into the third sliding cavity 54 and an end is rotatably disposed in a third sliding block 53 slidably disposed in the third sliding cavity 54, a first spring 52 is arranged between the end walls of the third sliding block 53 and the third sliding cavity 54 close to one side of the engagement cavity 56, and a first gear 55 is fixedly arranged on the outer surface of the spline housing 50 in the engagement cavity 56.
Advantageously, the locking device 98 comprises a second rotating shaft 32 rotatably disposed in the rotating cavity 34, a cam 33 and a second gear 31 located behind the cam 33 and engaged with a first rack 30 fixedly disposed on the bottom wall of the first sliding block 24 are fixedly disposed on the outer surface of the second rotating shaft 32, a first sliding groove 39 with an upward opening is disposed in the bottom wall of the rotating cavity 34, a second rack 38 is slidably disposed in the first sliding groove 39, a second sliding groove 40 with a downward opening is disposed in the bottom wall of the sliding frame 14 of the first sliding groove 39, a third rack 41 with a distal end extending into an upward opening locking groove 42 disposed in the top wall of the sliding guide groove 11 is slidably disposed in the second sliding groove 40, a second spring 35 is disposed between the third rack 41 and the top wall of the second sliding groove 40, and a gear cavity 36 is disposed in communication between the second sliding groove 40 and the first sliding groove 39, a third gear 37 engaged with the second rack 38 and the third rack 41 is rotatably disposed in the gear chamber 36.
Advantageously, the marking device 97 includes a third sliding groove 62 with a downward opening formed in a bottom wall of the second sliding block 60, a marking pen 63 is slidably disposed in the third sliding groove 62, a third spring 61 is disposed between the marking pen 63 and a top wall of the third sliding groove 62, a through hole 64 is formed in a bottom wall of the second sliding cavity 59, a fourth sliding cavity 47 is formed in an end wall of the engagement cavity 56 on a side away from the first sliding cavity 57, a fourth sliding block 48 is slidably disposed in the fourth sliding cavity 47, a second motor 46 is fixedly disposed in an end wall of the fourth sliding block 48 on a side close to the engagement cavity 56, a fourth gear 49 engaged with the first gear 55 is fixedly disposed at an output shaft end of the second motor 46, and the fourth gear 49 is engageable with a fourth rack 58 fixedly disposed on the top wall of the second sliding block 60, a fourth sliding groove 44 penetrating through the bottom wall of the sliding frame 14 is arranged in the bottom wall of the fourth sliding cavity 47, a sliding rod 45 fixedly connected with a fourth sliding block 48 is slidably arranged in the fourth sliding groove 44, and a groove 43 with an upward opening is arranged in the bottom wall of the sliding guide groove 11.
The fixing and connecting method in this embodiment includes, but is not limited to, bolting, welding, and the like.
As shown in fig. 1-4, in the initial state of the apparatus of the present invention, the second spring 35 is in a compressed state and the third spring 61 is in a compressed state.
Sequence of mechanical actions of the whole device:
when the device of the present invention is operated, two ends of the wire are inserted into the left and right fixing holes 22, respectively, the second motor 46 is started to drive the fourth gear 49 to rotate, thereby driving the first gear 55 to rotate, thereby driving the spline housing 50 to rotate, thereby driving the worm 29 to rotate, thereby driving the worm wheel 28 to rotate, thereby driving the winding wheel 21 to rotate, the winding wheel 21 rotates to wind the wire on the surface of the winding wheel 21, the wire between the left and right winding wheels 21 is gradually shortened along with the winding of the wire, at this time, the left and right first sliding blocks 24 slide towards each other, thereby driving the first rack 30 to move, thereby driving the second gear 31 to rotate, thereby driving the cam 33 to rotate, thereby pushing the second rack 38 to move downwards, thereby driving the third rack 41 to move upwards out of the locking groove 42, at this time, the third sliding block 53 compresses the first spring 52 to the extreme position, at this time, the first motor 15 is started to drive the second bevel gear 16 to rotate, the first bevel gear 17 is driven to rotate, the threaded rod 12 is driven to rotate, the left and right sliding frames 14 are driven to move away from each other, and therefore, the conducting wire is stretched, as the sliding frames 14 move, the sliding rod 45 slides into the groove 43, the fourth gear 49 is driven to move downwards to be meshed with the fourth rack 58, at this time, the left and right sliding frames 14 continue to move away, when the resistance measuring instrument 19 detects that the resistance between the left and right winding wheels 21 changes, a single strand in the conducting wire is broken, at this time, the second motor 46 drives the fourth gear 49 to rotate, so that the second sliding block 60 is driven to move back and forth once, and when the third sliding groove 62 moves to be aligned with the through hole 64, the marking pen 63 moves downwards under the action of the third spring 61 to abut against the bottom wall of the guide chute 11, at this time, the marking pen 63 marks the bottom of the guide chute 11, at this time, the left sliding frame 14 and the right sliding frame 14 are continuously driven to be away, so that the lead is continuously stretched until the lead is disconnected, at this time, the marking scale on the bottom wall of the guide chute 11 is observed, and therefore the breaking elongation of the lead is calculated.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims (4)

1. The utility model provides a stranded conductor elongation at break detecting instrument, includes the fuselage and the ascending guide chute of opening that bilateral symmetry set up in the fuselage roof, its characterized in that: a sliding frame is arranged in the sliding guide grooves in a sliding manner, threaded holes which are communicated from left to right are arranged in the sliding frame, the threaded holes are internally threaded and connected with threaded rods of which the tail ends extend into a transmission cavity arranged between the left sliding guide groove and the right sliding guide groove, first bevel gears are fixedly arranged at the tail ends of the threaded rods in the transmission cavity, a first motor is fixedly arranged in the bottom wall of the transmission cavity, second bevel gears meshed with the left bevel gears and the right bevel gears are fixedly arranged at the tail ends of output shafts of the first motor, a first sliding cavity is arranged in the end wall of one side, close to each other, of the sliding frame, a first sliding block is slidably arranged in the first sliding cavity, a winding cavity is arranged in the first sliding block, a winding wheel is rotatably arranged in the winding cavity, the left and right winding wheels are connected with a resistance measuring instrument fixedly arranged on the top wall of the machine body in series through a live wire, a worm wheel cavity is arranged in the rear side end wall of the winding cavity, a winding device for driving the winding wheels to rotate is arranged in the worm wheel cavity, the winding device can drive the winding wheels to rotate to wind a wire inserted into the fixed hole, a rotating cavity with an upward opening is arranged in the bottom wall of the first sliding cavity, a locking device is arranged in the rotating cavity and can lock the sliding frames in the sliding guide grooves, the locking device unlocks after the left and right winding devices wind and tighten the wire, so that the left and right sliding frames can be conveniently separated from each other to stretch the wire, a meshing cavity is arranged in the end wall of one side of the first sliding cavity, which is far away from the first sliding block, and a second sliding cavity is communicated in the bottom wall of the meshing, the second sliding block is arranged in the second sliding cavity in a sliding mode, the marking device is arranged in the second sliding block, the marking device marks the bottom wall of the guide sliding groove when the resistance value of the lead detected by the resistance measuring instrument changes suddenly, and the stretching length of the lead at the moment can be known through the marks corresponding to the scales on the bottom wall of the guide sliding groove.
2. The multi-strand wire elongation at break measuring instrument as claimed in claim 1, wherein: the winding device comprises a first rotating shaft which is rotatably arranged between the worm wheel cavity and the winding cavity and is fixedly connected with the winding wheel, a worm wheel is fixedly arranged at the tail end of the first rotating shaft in the worm wheel cavity, a worm which is meshed with the worm wheel is rotatably arranged in the worm wheel cavity, a third sliding cavity is arranged in the end wall of one side of the meshing cavity, which is far away from the first sliding cavity, a spline sleeve is rotatably arranged between the third sliding cavity and the first sliding cavity, a spline hole which is communicated from left to right is arranged in the spline sleeve, one side of the worm, which is far away from the first sliding block, extends into the spline hole and is in spline connection with the spline hole, the tail end of the worm extends into the third sliding cavity, the tail end of the worm is rotatably arranged in a third sliding block which is slidably arranged in the third sliding cavity, and a first spring is arranged between the third sliding block and the end wall of one side of the, and a first gear is fixedly arranged on the outer surface of the spline sleeve in the meshing cavity.
3. The multi-strand wire elongation at break measuring instrument as claimed in claim 1, wherein: the locking device comprises a second rotating shaft which is rotatably arranged in the rotating cavity, a cam and a second gear which is positioned at the rear side of the cam and is meshed with a first rack fixedly arranged on the bottom wall of the first sliding block are fixedly arranged on the outer surface of the second rotating shaft, a first sliding groove with an upward opening is arranged in the bottom wall of the rotating cavity, a second rack is arranged in the first sliding groove in a sliding manner, a second sliding groove is arranged in the bottom wall of the sliding frame of the first sliding groove with a downward opening, a third rack with a tail end extending into a locking groove with an upward opening arranged in the top wall of the guide sliding groove is arranged in the second sliding groove in a sliding manner, a second spring is arranged between the third rack and the top wall of the second sliding groove, a gear cavity is communicated between the second sliding groove and the first sliding groove, and a third gear meshed with the second rack and the third rack is rotatably arranged in the gear cavity.
4. The multi-strand wire elongation at break measuring instrument as claimed in claim 1, wherein: the marking device comprises a third sliding groove with a downward opening, which is arranged in the bottom wall of the second sliding block, a marking pen is arranged in the third sliding groove in a sliding manner, a third spring is arranged between the marking pen and the top wall of the third sliding groove, a through hole is arranged in the bottom wall of the second sliding cavity, a fourth sliding cavity is arranged in the end wall of one side of the meshing cavity, which is far away from the first sliding cavity, a fourth sliding block is arranged in the fourth sliding cavity in a sliding manner, a second motor is fixedly arranged in the end wall of one side of the fourth sliding block, which is close to the meshing cavity, a fourth gear meshed with the first gear is fixedly arranged at the tail end of an output shaft of the second motor, the fourth gear can be meshed with a fourth rack fixedly arranged on the top wall of the second sliding block, and a fourth sliding groove penetrating through the bottom wall of the sliding frame is arranged, the fourth sliding groove is internally provided with a sliding rod which is fixedly connected with the fourth sliding block in a sliding manner, and a groove with an upward opening is arranged in the bottom wall of the guide sliding groove.
CN202010163172.6A 2020-03-10 2020-03-10 Multi-strand wire elongation at break detecting instrument Withdrawn CN111238928A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010163172.6A CN111238928A (en) 2020-03-10 2020-03-10 Multi-strand wire elongation at break detecting instrument

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010163172.6A CN111238928A (en) 2020-03-10 2020-03-10 Multi-strand wire elongation at break detecting instrument

Publications (1)

Publication Number Publication Date
CN111238928A true CN111238928A (en) 2020-06-05

Family

ID=70862158

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010163172.6A Withdrawn CN111238928A (en) 2020-03-10 2020-03-10 Multi-strand wire elongation at break detecting instrument

Country Status (1)

Country Link
CN (1) CN111238928A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113624599A (en) * 2021-07-07 2021-11-09 神宇通信科技股份公司 Coaxial cable tension test device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113624599A (en) * 2021-07-07 2021-11-09 神宇通信科技股份公司 Coaxial cable tension test device

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