CN112146982A - Prestressed tendon elongation tensile detection device capable of removing surface skin - Google Patents
Prestressed tendon elongation tensile detection device capable of removing surface skin Download PDFInfo
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- CN112146982A CN112146982A CN202011011882.3A CN202011011882A CN112146982A CN 112146982 A CN112146982 A CN 112146982A CN 202011011882 A CN202011011882 A CN 202011011882A CN 112146982 A CN112146982 A CN 112146982A
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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
- G01N3/04—Chucks
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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
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0682—Spatial dimension, e.g. length, area, angle
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Abstract
The invention discloses a prestressed tendon elongation stretching detection device capable of removing a surface skin. Tensile detection device of prestressing tendons elongation that can get rid of to the epidermis, including the operation panel, one side fixedly connected with installing frame at operation panel top, the equal fixedly connected with adjusting box in both sides of installing frame inside. The stretching detection device for the elongation of the prestressed tendon capable of removing the surface skin provided by the invention can be used for conveniently fixing a cable in a detection process without manual fixing, is simple to operate and convenient to use, can be used for automatically clamping and fixing the cable under the starting of the driving motor, greatly improves the clamping firmness of the cable through the two rows of clamping pieces, avoids falling off in the detection process, completes the fixing of the right end of the cable under the condition of rotating the nut through the arranged extrusion piece, is convenient to pull the cable, and avoids sliding when the cable is directly pulled so as to influence the detection result.
Description
Technical Field
The invention relates to the technical field of power cables, in particular to a prestressed tendon elongation tensile detection device capable of removing a surface skin.
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 ensure that the produced cable meets various indexes, the cable needs to be subjected to relevant detection when being delivered from a factory, the current detection mode for cable stretching is mostly detected by a cable stretching tester, when the inner core of the cable is subjected to stretching detection of the stretching amount of the prestressed tendon, the skin of the cable needs to be removed, so that the prestress in the stretching detection process can be conveniently detected, when the cable skin is removed and the stretching detection is carried out, the cable is generally required to be fixed, the cable is convenient to process, when the cable is fixed, generally by manual operation, the screws required for fixing are screwed, with the aid of an external auxiliary tool, and then accomplish the fixed to the cable, not only waste time and energy, still make fixed effect unsatisfactory, drop in the testing process easily, and then influence the testing result.
Therefore, it is necessary to provide a tendon elongation tensile testing apparatus capable of removing the skin to solve the above-mentioned technical problems.
Disclosure of Invention
The invention provides a prestressed tendon elongation stretching detection device capable of removing a surface skin, which solves the problem that when a cable is fixed, generally manual operation is carried out, screws required for fixing are further fixed by means of an external auxiliary tool, and time and labor are wasted.
In order to solve the technical problems, the stretching detection device for the elongation of the prestressed tendon capable of removing the epidermis comprises an operation table, wherein one side of the top of the operation table is fixedly connected with an installation frame, two sides inside the installation frame are both fixedly connected with an adjusting box, one side inside the adjusting box is provided with a driving motor, an output shaft of the driving motor is fixedly connected with a lead screw, one end of the lead screw is rotatably connected to one side inside the adjusting box, the outer surface of the lead screw is in threaded connection with two threaded sleeves, the two threaded sleeves are both movably connected with connecting rods, a moving plate is slidably connected between two sides inside the adjusting box and positioned at one side of the lead screw, one ends of the two connecting rods are both movably connected to the moving plate, the other side of the moving plate is fixedly connected with two fixed plates, and one side of each fixed plate penetrates through the adjusting box and extends to the outside of the adjusting box, two fixed plates all extend to the equal fixedly connected with holder in the outside one side of regulating box, the inside of holder is provided with the cable, be provided with the block rubber on the holder, one side contact of cable in on the block rubber.
Preferably, a placing plate is fixedly connected between two sides inside the mounting frame, two placing pieces are fixedly connected to the placing plate, and one side of each placing piece is arranged on the cable.
Preferably, the both sides of movable plate all run through adjust the box and extend to adjust the outside of box, the both sides of movable plate all extend to adjust the equal fixedly connected with sliding sleeve in the outside one side of box, the equal fixedly connected with slide bar in the inside both sides of installing frame, sliding sleeve's inside sliding connection in the surface of slide bar, the surface cover of slide bar is equipped with extrusion spring.
Preferably, the top of the operating table is fixedly connected with a sliding box, a long rod is fixedly connected between two sides of the inside of the sliding box, and a moving block is connected to the outer surface of the long rod in a sliding mode.
Preferably, the top of the moving block penetrates through the sliding box and extends to the outside of the sliding box, one side of the moving block, which extends to the top of the sliding box, is fixedly connected with a long plate, and the top of the long plate is fixedly connected with a fixing piece.
Preferably, the one end of cable runs through the installing frame and extends to the inside of mounting, the top fixedly connected with screw block of mounting, the inside threaded connection of screw block has the threaded rod, the bottom of threaded rod runs through the cable extends to the inside of cable, the threaded rod extends to the inside one end of cable is rotated and is connected with the extruded piece, the top fixedly connected with nut of threaded rod.
Preferably, both sides of the extrusion part are fixedly connected with sliding blocks, one sides of the two sliding blocks are connected with both sides in the cable in a sliding mode, and the bottom of the extrusion part is in contact with the cable.
Preferably, a reinforcing plate is fixedly connected to one side of the inside of the cable, a protruding block is arranged on the reinforcing plate, and the top of the protruding block is in contact with the cable.
Preferably, one side of the fixing part is slidably connected with a square block, and a cutting part is arranged at the bottom of the square block.
Preferably, the equal fixedly connected with bracing piece in both sides of operation panel bottom, the bottom fixedly connected with supporting seat of bracing piece, two fixedly connected with places the case between the relative one side of bracing piece, place equal fixedly connected with baffle between the both sides of incasement portion.
Compared with the related art, the stretching detection device for the elongation of the prestressed tendon capable of removing the surface skin provided by the invention has the following beneficial effects:
the invention provides a prestressed tendon elongation stretching detection device capable of removing a surface
(1) The stretching detection device for the elongation of the prestressed tendon capable of removing the surface skin provided by the invention can be used for conveniently fixing a cable in a detection process without manual fixing, is simple to operate and convenient to use, can be used for automatically clamping and fixing the cable under the starting of a driving motor, and greatly improves the clamping firmness of the cable through the two rows of clamping pieces, and avoids falling off in the detection process;
(2) through the extruded article that sets up, under the condition of rotating the nut, the completion is fixed the right-hand member of cable, conveniently stimulates the cable, slides when avoiding directly stimulating the cable, and then influences the result that detects.
Drawings
Fig. 1 is a schematic structural diagram of a tendon elongation tensile testing apparatus capable of removing skin according to a preferred embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of the holding tank shown in FIG. 1;
FIG. 3 is a schematic top view of the mounting frame shown in FIG. 1;
FIG. 4 is a side view of the clamp of FIG. 3;
FIG. 5 is a schematic cross-sectional view of the conditioning cartridge shown in FIG. 3;
FIG. 6 is a cross-sectional schematic view of the anchor shown in FIG. 1;
fig. 7 is a side view schematic of the extrusion of fig. 6.
Reference numbers in the figures: 1. an operation table; 2. installing a frame; 3. an adjustment box; 4. a drive motor; 5. a screw rod; 6. a threaded sleeve; 7. a connecting rod; 8. moving the plate; 9. a fixing plate; 10. a clamping member; 11. a cable; 12. a rubber block; 13. placing the plate; 14. placing the piece; 15. a sliding sleeve; 16. a slide bar; 17. a compression spring; 18. a slide cassette; 19. a long rod; 20. a moving block; 21. a long plate; 22. a fixing member; 23. a thread block; 24. a threaded rod; 25. an extrusion; 26. a slider; 27. a reinforcing plate; 28. a bump; 29. a square block; 30. cutting the piece; 31. a support bar; 32. a supporting seat; 33. placing a box; 34. a nut; 35. and a baffle plate.
Detailed Description
The invention is further described with reference to the following figures and embodiments.
Referring to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6 and fig. 7, in which fig. 1 is a schematic structural diagram of a tendon elongation tensile testing apparatus capable of removing a skin according to a preferred embodiment of the present invention; FIG. 2 is a schematic cross-sectional view of the holding tank shown in FIG. 1; FIG. 3 is a schematic top view of the mounting frame shown in FIG. 1; FIG. 4 is a side view of the clamp of FIG. 3; FIG. 5 is a schematic cross-sectional view of the conditioning cartridge shown in FIG. 3; FIG. 6 is a cross-sectional schematic view of the anchor shown in FIG. 1; fig. 7 is a side view schematic of the extrusion of fig. 6. The stretching detection device for the elongation of the prestressed tendon capable of removing the epidermis comprises an operation table 1, wherein an installation frame 2 is fixedly connected to one side of the top of the operation table 1, adjusting boxes 3 are fixedly connected to two sides inside the installation frame 2, a driving motor 4 is arranged on one side inside the adjusting box 3, a lead screw 5 is fixedly connected to an output shaft of the driving motor 4, one end of the lead screw 5 is rotatably connected to one side inside the adjusting box 3, two threaded sleeves 6 are connected to the outer surface of the lead screw 5 in a threaded manner, connecting rods 7 are movably connected to the two threaded sleeves 6, a movable plate 8 is slidably connected between two sides inside the adjusting box 3 and located on one side of the lead screw 5, one ends of the two connecting rods 7 are movably connected to the movable plate 8, and two fixed plates 9 are fixedly connected to the other side of the movable plate 8, one side of each of the two fixing plates 9 penetrates through the adjusting box 3 and extends to the outside of the adjusting box 3, one side of each of the two fixing plates 9 extending to the outside of the adjusting box 3 is fixedly connected with a clamping piece 10, a cable 11 is arranged inside the clamping piece 10, a rubber block 12 is arranged on the clamping piece 10, and one side of the cable 11 is in contact with the rubber block 12;
the driving motor 4 is a forward and reverse rotating motor;
the driving motor 4 is connected with an external power supply and a control switch;
the screw rod 5 is provided with a positive thread and a negative thread;
the operation table 1 is provided with a graduated scale, so that the stretched length of the cable after peeling is conveniently observed, and the prestress is further analyzed;
in the present embodiment, the cable 11 denotes a cable;
the rubber block 12 is arranged, so that the friction force of the clamping piece 10 when the cable 11 is clamped is increased, and the clamping firmness is improved;
the shape of the clamping piece 10 is a semicircular arc shape, so that the contact area of the clamping piece and the cable 11 is increased, and the clamping stability is improved.
A placing plate 13 is fixedly connected between two sides of the interior of the mounting frame 2, two placing pieces 14 are fixedly connected to the placing plate 13, and one side of each placing piece 14 is arranged on the cable 11;
the placement member 14 is adapted to the cable.
Both sides of the moving plate 8 penetrate through the adjusting box and extend to the outside of the adjusting box, one side of both sides of the moving plate 8 extending to the outside of the adjusting box 3 is fixedly connected with a sliding sleeve 15, both sides of the inside of the mounting frame 2 are fixedly connected with a sliding rod 16, the inside of the sliding sleeve 15 is connected to the outer surface of the sliding rod 16 in a sliding manner, and the outer surface of the sliding rod 16 is sleeved with an extrusion spring 17;
the extrusion spring 17 is arranged on the sliding rod 16, so that the movable plate 8 is limited, and the phenomenon that the movable plate 8 is moved to influence the clamping firmness when the clamping piece clamps and fixes the cable is avoided.
The top of the operating table 1 is fixedly connected with a sliding box 18, a long rod 19 is fixedly connected between two sides of the inside of the sliding box 18, and a moving block 20 is connected to the outer surface of the long rod 19 in a sliding manner.
The top of the moving block 20 penetrates through the sliding box 18 and extends to the outside of the sliding box 18, one side of the moving block 20 extending to the top of the sliding box 18 is fixedly connected with a long plate 21, and the top of the long plate 21 is fixedly connected with a fixing part 22;
a T-shaped bar is fixed on one side of the long plate 21, so that the fixing member 22 can be conveniently pulled.
One end of the cable 11 penetrates through the mounting frame 2 and extends into the fixing part 22, a thread block 23 is fixedly connected to the top of the fixing part 22, a thread rod 24 is connected to the inner thread of the thread block 23, the bottom end of the thread rod 24 penetrates through the cable 11 and extends into the cable 11, an extrusion part 25 is rotatably connected to one end of the thread rod 24 extending into the cable 11, and a nut 34 is fixedly connected to the top end of the thread rod 24;
when peeling off, the right end of the cable 11 is not fixed, but the right end is pulled by an operator, and the electric cable 11 is always kept on the same horizontal line, so that the cutting piece 30 can conveniently slide on the cable 11 to cut the skin of the cable 11, and further the skin is removed;
the shape of the extrusion piece 25 is half of a half arc shape, so that the contact area with the cable 11 is increased, and the clamping and fixing effects are improved.
Sliding blocks 26 are fixedly connected to two sides of the extrusion part 25, one sides of the two sliding blocks 26 are slidably connected to two sides inside the cable 11, and the bottom of the extrusion part 25 is in contact with the cable 11.
A reinforcing plate 27 is fixedly connected to one side of the inside of the cable 11, a bump 28 is arranged on the reinforcing plate 27, and the top of the bump 28 is in contact with the cable 11;
the bump 28 is made of rubber, when the cable is extruded and fixed by the extrusion piece 25, the cable is in contact extrusion with the bump 28, and at the moment, the bump 28 is arranged to increase the friction force between the bump and the cable, so that the cable is conveniently fixed and clamped.
A square block 29 is connected to one side of the fixing member 22 in a sliding manner, and a cutting member 30 is arranged at the bottom of the square block 29;
the cutter 30 is provided with a blade, and the blade cuts the skin of the cable by sliding the cutter 30 left and right.
The two sides of the bottom of the operating platform 1 are fixedly connected with supporting rods 31, the bottom ends of the supporting rods 31 are fixedly connected with supporting seats 32, a placing box 33 is fixedly connected between the opposite sides of the two supporting rods 31, and baffles 35 are fixedly connected between the two sides inside the placing box 33;
the support base 32 is placed in parallel with the ground;
a plurality of cables 11 can be placed through the arranged placing box 33, and a batch of cables 11 are stored;
the front surface of the placing box 33 is provided with a box door.
The working principle of the prestressed tendon elongation stretching detection device capable of removing the surface skin provided by the invention is as follows:
the first step is as follows: when the inner core of the cable 11 is subjected to stretching detection prestress, firstly, the cable 11 needs to be fixedly installed, so that the stretching and the skin removal are convenient, when the fixing is performed, firstly, the left end of the cable 11 is fixed inside the installation frame 2, the cable 11 is placed on a placing piece 14 on a placing plate 13, a driving motor 4 is started, a screw rod 5 on the output of the driving motor 4 is driven to rotate, a threaded sleeve 6 on the screw rod 5 slides, a connecting rod 7 on a moving plate 8 is extruded, the moving plate 8 is driven to slide on the inner wall of an adjusting box 3, a fixing plate 9 on the moving plate 8 is adjusted out of the adjusting box 3, a clamping piece 10 on the fixing plate 9 is driven to be in contact with the cable 11, and then under the working of the driving motor 4, the clamping piece 10 clamps and fixes the cable 11;
the second step is that: after the left end of the cable 11 is fixed, the skin of the cable 11 needs to be removed after the right end of the cable 11 passes through the fixing part 22, the cable 11 is firstly opened by scissors, the square 29 is manually extruded, the cutting part 30 on the square 29 is driven to enter the opening of the cable 11, meanwhile, the fixing part 22 is pushed, so that the long plate 21 at the bottom of the fixing part 22 slides left and right on the long rod 19 through the moving block 20, the cutting part 30 slides on the surface of the cable 11, the skin of the cable 11 is scratched, and the skin is convenient to remove;
the third step: after the skin is removed, stretching detection is carried out, the right end of the cable 11 needs to be fixed, the threaded rod 24 is driven to rotate downwards by manually rotating the nut 34, so that the sliding block 26 on the extrusion piece 25 at the bottom end of the threaded rod 24 slides downwards on the inner wall of the fixing piece 22, the extrusion piece 25 extrudes and clamps the cable 11, and the whole cable 11 is fixed;
the fourth step: through the T type pole on pulling mounting 22 right side for mounting 22 slides right, through the scale that sets up on operation panel 1, conveniently reads out tensile length, and then can analyze out the prestressing force of cable inner core.
Compared with the related art, the stretching detection device for the elongation of the prestressed tendon capable of removing the surface skin provided by the invention has the following beneficial effects:
(1) the device can conveniently fix the cable 11 in the detection process without manual fixation, is simple to operate and convenient to use, can automatically clamp and fix the cable 11 under the starting of the driving motor 4, greatly improves the clamping firmness of the cable through the two rows of clamping pieces 10, and avoids falling off in the detection process;
(2) through the extruded piece 25 that sets up, under the condition of swivel nut 34, the completion is fixed the right-hand member of cable 11, conveniently stimulates cable 11, slides when avoiding directly stimulating the cable, and then influences the result that detects.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. The utility model provides a tensile detection device of prestressing tendons elongation that can get rid of to skin, includes operation panel (1), its characterized in that: the automatic adjusting device is characterized in that an installing frame (2) is fixedly connected to one side of the top of the operating table (1), adjusting boxes (3) are fixedly connected to two sides of the inside of the installing frame (2), a driving motor (4) is arranged on one side of the inside of the adjusting box (3), a lead screw (5) is fixedly connected to an output shaft of the driving motor (4), one end of the lead screw (5) is rotatably connected to one side of the inside of the adjusting box (3), two threaded sleeves (6) are connected to outer surface threads of the lead screw (5), connecting rods (7) are movably connected to the two threaded sleeves (6), a moving plate (8) is slidably connected between two sides of the inside of the adjusting box (3) and located on one side of the lead screw (5), one ends of the two connecting rods (7) are movably connected to the moving plate (8), and two fixing plates (9) are fixedly connected to the other, two one side of fixed plate (9) all runs through adjust box (3) and extend to adjust the outside of box (3), two fixed plates (9) all extend to adjust the equal fixedly connected with holder (10) in one side of box (3) outside, the inside of holder (10) is provided with cable (11), be provided with rubber block (12) on holder (10), one side contact of cable (11) in on rubber block (12).
2. The device for detecting elongation of tendon capable of removing skin according to claim 1, wherein a placing plate (13) is fixedly connected between two sides of the inside of the mounting frame (2), two placing members (14) are fixedly connected to the placing plate (13), and one side of the two placing members (14) is disposed on the cable (11).
3. The device for detecting elongation of tendon capable of removing skin according to claim 1, wherein both sides of the moving plate (8) penetrate through the adjusting box and extend to the outside of the adjusting box, one side of both sides of the moving plate (8) extending to the outside of the adjusting box (3) is fixedly connected with a sliding sleeve (15), both sides of the inside of the mounting frame (2) are fixedly connected with a sliding rod (16), the inside of the sliding sleeve (15) is slidably connected to the outer surface of the sliding rod (16), and the outer surface of the sliding rod (16) is sleeved with an extrusion spring (17).
4. The device for detecting elongation of tendon capable of removing epidermis according to claim 1, wherein a sliding box (18) is fixedly connected to the top of the operation table (1), a long rod (19) is fixedly connected between two sides of the inside of the sliding box (18), and a moving block (20) is slidably connected to the outer surface of the long rod (19).
5. The device for detecting elongation of tendon capable of removing epidermis according to claim 4, wherein the top of the moving block (20) penetrates through the sliding box (18) and extends to the outside of the sliding box (18), one side of the moving block (20) extending to the top of the sliding box (18) is fixedly connected with a long plate (21), and the top of the long plate (21) is fixedly connected with a fixing member (22).
6. The device for detecting stretching of the tendon capable of removing the skin according to claim 1, wherein one end of the cable (11) penetrates through the mounting frame (2) and extends to the inside of the fixing member (22), a thread block (23) is fixedly connected to the top of the fixing member (22), a threaded rod (24) is connected to the inner thread of the thread block (23), the bottom end of the threaded rod (24) penetrates through the cable (11) and extends to the inside of the cable (11), an extrusion part (25) is rotatably connected to one end of the threaded rod (24) extending to the inside of the cable (11), and a nut (34) is fixedly connected to the top end of the threaded rod (24).
7. A device for detecting the elongation of a tendon that allows the removal of a skin according to claim 6, characterized in that sliding blocks (26) are fixedly connected to both sides of the extrusion member (25), one side of the two sliding blocks (26) is slidably connected to both sides inside the cable (11), and the bottom of the extrusion member (25) is in contact with the cable (11).
8. The device for detecting the elongation of the tendon capable of removing the skin according to claim 1, wherein a reinforcing plate (27) is fixedly connected to one side of the inside of the cable (11), a bump (28) is arranged on the reinforcing plate (27), and the top of the bump (28) is in contact with the cable (11).
9. A device for detecting the elongation of a tendon capable of removing a skin according to claim 5, characterized in that a block (29) is slidably connected to one side of the fixing member (22), and a cutting member (30) is provided at the bottom of the block (29).
10. The stretching detection device for the tendon elongation that can remove the skin according to claim 1, wherein a support rod (31) is fixedly connected to both sides of the bottom of the operation table (1), a support seat (32) is fixedly connected to the bottom end of the support rod (31), a placing box (33) is fixedly connected between the opposite sides of the two support rods (31), and a baffle (35) is fixedly connected between both sides of the inside of the placing box (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011011882.3A CN112146982B (en) | 2020-09-23 | 2020-09-23 | Prestressed tendon elongation tensile detection device capable of removing surface skin |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011011882.3A CN112146982B (en) | 2020-09-23 | 2020-09-23 | Prestressed tendon elongation tensile detection device capable of removing surface skin |
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| CN112146982A true CN112146982A (en) | 2020-12-29 |
| CN112146982B CN112146982B (en) | 2021-08-03 |
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| US8783115B2 (en) * | 2012-06-11 | 2014-07-22 | Verizon Patent And Licensing Inc. | System and method for measuring cable bending force and cable kink force |
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| Publication number | Publication date |
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| CN112146982B (en) | 2021-08-03 |
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