CN215985584U - Phase modifier engineering cable tensile fatigue test device - Google Patents
Phase modifier engineering cable tensile fatigue test device Download PDFInfo
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- CN215985584U CN215985584U CN202122126614.2U CN202122126614U CN215985584U CN 215985584 U CN215985584 U CN 215985584U CN 202122126614 U CN202122126614 U CN 202122126614U CN 215985584 U CN215985584 U CN 215985584U
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Abstract
The utility model relates to the field of electrical equipment, in particular to a phase modulator engineering cable tensile fatigue test device. The utility model provides a phase modifier engineering cable tensile fatigue test device, which comprises a base, a fixed seat arranged on the base and a movable tensile seat, wherein the fixed seat and the movable tensile seat are respectively provided with a transverse cable duct penetrating through the base, the axes of the two cable ducts are superposed, the tensile seat can be translated back and forth on the base along the axis direction of the cable duct and locked in a position, the distance between the tensile seat and the fixed seat is changed, and the tensile seat and the fixed seat are respectively provided with a first fastening structure and a second fastening structure for locking a cable. The utility model can perform tensile fatigue test on high-voltage cables with different diameters and lengths, research the tensile strength and other characteristics of the cables, and provide important reference and guarantee for cable application and safe operation of a power grid.
Description
Technical Field
The utility model relates to the field of electrical equipment, in particular to a phase modulator engineering cable tensile fatigue test device.
Background
The ultra-high voltage transmission has the advantages of long transmission distance, large transmission distance and low loss, and the problem of insufficient reactive power of a direct current transmission receiving end power grid exists in an ultra-high voltage direct current power grid with remote direct current transmission and alternating current integration. The phase modifier is significant for improving a power grid as a reactive compensation device, the cable is an important component of a phase modifier process as power transmission equipment, the tensile strength of the cable is an important performance index of the cable, the cable with high tensile strength can only deal with more complex working condition environments, and the cable is guaranteed not to be influenced by the outside to normally run. The research on the tensile fatigue property of the existing high-voltage cable is insufficient, and power accidents caused by the tensile fatigue of the cable are frequent, so that a test device capable of performing a tensile fatigue test on the cable needs to be developed to develop related research.
SUMMERY OF THE UTILITY MODEL
The utility model provides a phase modifier engineering cable tensile fatigue test device, which aims to solve the technical problem that the prior art is lack of test equipment for performing tensile fatigue tests on cables.
The technical scheme adopted by the utility model for solving the technical problem is as follows: the utility model provides a phase modifier engineering cable tensile fatigue test device, characterized by includes a base and locates the fixing base and the tensile seat of activity on it, all be equipped with the horizontal cable pore that runs through the pedestal on tensile seat and the fixing base, and the axis coincidence of two cable pore, tensile seat can make a round trip to translate and latched position along the axis direction in cable pore on the base, changes the interval with the fixing base, is equipped with the first fastening structure and the second fastening structure of locking the cable on tensile seat and the fixing base respectively. The utility model can carry out tensile tests with different tensile amounts and fatigue tests with different tensile durations on the cable to be tested, researches the tensile strength and other characteristics of the cable, and provides important reference for safe operation of a power grid. When the device is used, two ends of a cable to be tested penetrate through the two cable pore passages on the stretching seat and the fixed seat, the two ends of the cable are firmly locked by the first fastening structure and the second fastening structure, so that the two ends of the cable are respectively fastened on the stretching seat and the fixed seat, the distance between the stretching seat and the fixed seat is gradually increased along with the translation of the stretching seat away from the fixed seat, the cable is stretched, the position of the stretching seat is locked after the cable reaches the preset stretching length, and the cable is subjected to a stretching fatigue test. The cable pore on tensile seat and the fixing base is used for wearing to establish spacing cable that awaits measuring, and the cable pore can be opened the experimental requirement of cable that the great aperture satisfies the thickness difference, and the locking at cable both ends is fixed then realizes through two fastening structure. The distance between the stretching seat and the fixing seat is changed through translation, cables to be tested with different lengths are matched, and various stretching fatigue tests are responded.
As a further improvement and supplement to the above technical solution, the present invention adopts the following technical measures: the same translation guide mechanisms are arranged between the two sides of the stretching seat and the base, and a locking mechanism capable of locking the position of the stretching seat is arranged on the base between the two translation guide mechanisms. The translation guide mechanisms on the two sides of the stretching seat are used for guiding the stretching seat to translate back and forth on the base; the locking mechanism is used for locking the position of the stretching seat after the stretching seat is translated to the position, so that the cable keeps the current stretching length.
The translation guide mechanism comprises a gear which is rotatably connected to the side face of the stretching seat and a rack which is fixed on the surface of the base, and the length direction of the rack is parallel to the translation direction of the stretching seat. The translation guide mechanism adopts the cooperation of a gear and a rack, the gear and the rack are meshed through teeth, the gear rolls along the rack to drive the stretching seat to stably translate on the base, and two gears of the translation guide mechanisms on two sides of the stretching seat synchronously rotate in work.
Two gears of the two sides of the stretching seat are arranged on the same rotating shaft, the rotating shaft is transversely arranged and rotates to penetrate through the stretching seat, the two ends of the rotating shaft extend out of the stretching seat to be provided with the gears, and a hand wheel is fixed at any end of the rotating shaft. The rotating hand wheel drives the rotating shaft to rotate, the two gears synchronously rotate along with the rotating shaft and move along the rack, and the stretching seat is horizontally moved.
The locking mechanism comprises a bolt and a locking block arranged below the base, the base is provided with a transverse groove which extends along the translation direction of the stretching base and penetrates through the base, the threaded end of the bolt penetrates through a protruding part and the transverse groove which extend out of the bottom of the stretching base from top to bottom and then is in threaded connection with the locking block, the protruding part is provided with a mounting hole matched with the bolt, and the locking block is provided with a screw hole matched with the bolt; the bottom of the base is provided with a plurality of support legs. When the stretching seat is freely translated above the transverse groove of the base, the locking block connected in series with the bolt moves synchronously with the stretching seat below the transverse groove, and the bolt and the locking block act together to keep the moving direction of the stretching seat to avoid deviation; the supporting legs are used for lifting the base, so that a locking block is installed in a proper vacant position below the base. When the current position of the stretching seat needs to be locked, the bolt is screwed to enable the stretching seat and the locking block to clamp the base, at the moment, the stretching seat and the locking block tightly abut against two surfaces of the base, and the stretching seat is fixed on the base; when the unlocking is needed, the bolt is unscrewed, so that the base is not clamped by the stretching seat and the locking block any more, and the stretching seat can be freely translated on the base again.
The base is suspended with a cylindrical shield, the shield is positioned between the fixed seat and the stretching seat, the axis of the shield coincides with the axis of the cable duct, and the two sides of the shield extend out of connecting plates of an integrated structure to be fixed with the base. The fracture usually takes place in the middle section during cable drawing, wears to establish in the guard shield with the cable middle section, prevents that the cable from breaking and leading to the foreign matter departure, causes the injury to the people. The connecting plates on the two sides of the shield are fixed with the base, so that the shield is suspended on the base to facilitate the penetration of a cable.
The first fastening structure is arranged on one side, back to the base, of the stretching seat and comprises a first U-shaped part movably connected to the stretching seat and two first locking nuts arranged at two ends of the first U-shaped part, two ends of the first U-shaped part horizontally penetrate through a mounting hole formed in the stretching seat and extend out of the stretching seat, and external threads matched with the first locking nuts are arranged at two ends of the first U-shaped part; the second fastening structure is arranged on one side, opposite to the stretching seat, of the fixing seat and comprises a second U-shaped part movably connected to the fixing seat and second locking nuts arranged at two ends of the second U-shaped part, two ends of the second U-shaped part penetrate through mounting holes formed in the fixing seat along the horizontal direction and extend out of the fixing seat, and external threads matched with the second locking nuts are arranged at two ends of the second U-shaped part. The first U-shaped part and the second U-shaped part are used for locking and fixing the cable in the same operation process, the end part of the cable is attached to a corresponding stretching seat or a corresponding fixing seat to penetrate through the inner side of the U-shaped part, then two locking nuts at two ends of the U-shaped part are screwed to abut against the stretching seat or the fixing seat, and the U-shaped part clamps the cable on the corresponding stretching seat or the fixing seat. After the test is finished, the locking nut is unscrewed, the U-shaped piece loosens the cable, and the end part of the cable can be taken down from the stretching seat or the fixed seat.
2-4 first U-shaped parts are arranged on one side of the stretching seat from top to bottom. Through the combined action of a plurality of first U-shaped pieces, the cable end is locked on the stretching seat more firmly, and corresponding first locking nuts are arranged at two ends of all the first U-shaped pieces.
The fixing base comprises a cylinder and an installation table which are butted into an integral structure from top to bottom, the cylinder is transversely fixed on the top surface of the installation table, a cable duct of the fixing base is arranged on the cylinder, the axis of the cable duct is coincident with the axis of the cylinder, and the second fastening structure is arranged on the side surface of the installation table. The fixing seat is fixedly connected into an integral structure by two parts, a cable pore passage is formed in the cylinder to penetrate through and install a cable, and the installation platform is used for arranging a second fastening structure to lock the end part of the cable.
The utility model can carry out tensile fatigue tests of different tensile quantities on the cable, study the tensile strength and other characteristics of the cable and provide important reference and guarantee for the safe operation of a power grid. The whole testing device is simple in structure and convenient to use and operate.
Drawings
FIG. 1: the utility model relates to a three-dimensional structure diagram.
FIG. 2: side view of the present invention.
FIG. 3: fig. 2 is a top view.
In the figure: 1. the locking device comprises a base, 2. an installation table, 3. a cylinder, 4. a second U-shaped piece, 5. a cable, 6. a rack, 7. a stretching seat, 71. a bulge, 8. a hand wheel, 9. a rotating shaft, 10. a bolt, 11. a gear, 12. a first U-shaped piece, 13. a first locking nut, 14. a second locking nut, 15. a transverse groove, 16. a shield, 16-1. a connecting plate, 17. a screw, 18. a supporting leg and 19. a locking block.
Detailed Description
The utility model is further described with reference to the following description and embodiments in conjunction with the accompanying drawings.
As shown in fig. 1-3, a phase modifier engineering cable tensile fatigue test device includes a base 1 and a fixing base and a movable tensile base 7 arranged thereon, the bottom of the base 1 is provided with four support legs 18, the tensile base 7 and the fixing base are both provided with a transverse cable duct penetrating through the base body, the axes of the two cable ducts coincide, the tensile base 7 can be moved back and forth on the base 1 along the axis direction of the cable duct and locked in position, the distance between the tensile base 7 and the fixing base is changed, and the tensile base 7 and the fixing base are respectively provided with a first fastening structure and a second fastening structure for locking the cable. The same translation guide mechanisms are arranged between the two sides of the stretching seat 7 and the base 1, a locking mechanism capable of locking the position of the stretching seat 7 is arranged on the base 1 between the two translation guide mechanisms, the translation guide mechanisms in the embodiment comprise gears 11 rotatably connected to the side surfaces of the stretching seat 7 and racks 6 fixed on the surface of the base 1, the length direction of the racks 6 is parallel to the translation direction of the stretching seat 7, the two gears 11 on the two sides of the stretching seat 7 are arranged on the same rotating shaft 9, the rotating shaft 9 is transversely arranged and rotatably arranged on the stretching seat 7 in a penetrating manner, the gears 11 are arranged at the two ends of the rotating shaft 9 extending out of the stretching seat 7, and a hand wheel 8 is further fixed at one end part of the rotating shaft 9; the locking mechanism in the embodiment comprises a bolt 10 and a locking block 19 arranged below the base 1, wherein the base 1 is provided with a transverse groove 15 which extends along the translation direction of the stretching base 7 and penetrates through the base 1, the threaded end of the bolt 10 penetrates through a protruding portion 71 extending out of the bottom of the stretching base 7 and the transverse groove 15 from top to bottom and then is in threaded connection with the locking block 19, the protruding portion 71 is provided with a mounting hole matched with the bolt 10, and the locking block 19 is provided with a threaded hole matched with the bolt 10. A cylindrical shield 16 is further suspended on the base 1, the shield 6 is located between the fixed seat and the stretching seat 7, the axis of the shield 6 is overlapped with the axis of the cable duct, and connecting plates 16-1 of an integrated structure extend out of two sides of the shield 6 and are fixed with the base 1 through screws 17.
As shown in fig. 1 and 3, the first fastening structure is disposed on one side of the stretching base 7, which is opposite to the base 1, and the first fastening structure includes a first U-shaped member 12 movably connected to the stretching base 7 and two first locking nuts 13 installed at two ends of the first U-shaped member, two ends of the first U-shaped member 12 horizontally penetrate through a mounting hole formed in the stretching base 7 and extend out of the stretching base 7, two ends of the first U-shaped member 12 are provided with external threads matched with the first locking nuts 13, in this embodiment, 3 first U-shaped members 12 are disposed on one side of the stretching base 7 from top to bottom, and each first U-shaped member is provided with two first locking nuts 13.
As shown in fig. 1, the fixing base comprises a cylinder 3 and a mounting table 2 which are butted into an integral structure from top to bottom, the cylinder 3 is transversely fixed on the top surface of the mounting table 2, a cable hole of the fixing base is arranged on the cylinder 3, meanwhile, the axis of the cable hole coincides with the axis of the cylinder 3, the second fastening structure is arranged on one side of the fixing base, which is back to the stretching base 7, specifically, the side surface of the mounting table 2, the second fastening structure comprises a second U-shaped part 4 movably connected to the mounting table 2 and second locking nuts 14 arranged at two ends of the second U-shaped part 4, two ends of the second U-shaped part pass through the mounting hole arranged on the mounting table 2 along the horizontal direction and stretch out of the mounting table 2, and external threads matched with the second locking nuts 14 are arranged at two ends of the second U-shaped part 4.
During the test, firstly, the high-voltage cable 5 to be tested passes through the protective cover, the two ends of the cable respectively pass through cable holes in the stretching seat and the cylinder, then the two ends of the cable are locked and fixed through the corresponding U-shaped pieces of the first fastening structure and the second fastening structure, specifically, the two ends of the cable respectively pass through the first U-shaped piece and the second U-shaped piece and are attached and fixed to the stretching seat and the mounting table, the end part of the cable is pressed and fixed on the side surface of the stretching seat through the first locking nuts of the two end parts of the first U-shaped piece, and the end part of the cable is also pressed and fixed on the side surface of the mounting table through the second locking nuts of the two end parts of the similar second U-shaped piece. The test procedure was as follows:
the method comprises the following steps: the hand wheel is slowly moved, the gear rolls on the rack, and the stretching seat slowly translates to gradually stretch the cable;
step two: after the hand wheel is rotated to move the stretching seat to a specified position, the bolt is screwed to enable the stretching seat and the locking block to clamp the base tightly, the stretching seat is locked at the specified position on the base, and the cable keeps the current stretching length;
step three: maintaining the preset time length, and performing a tensile fatigue test with the set tensile time length;
step four: and D, loosening the bolt to unlock the stretching seat, rotating the hand wheel again, repeating the first step and the second step, and adjusting the stretching seat to perform stretching fatigue tests on the cable at different positions for different stretching amounts and different durations.
The utility model can perform tensile fatigue tests on cables with different diameters, can adjust the tensile length of the cable according to requirements in the test process, performs the tensile fatigue tests with different tensile amounts and different time lengths, researches the tensile strength and other characteristics of the cable, and provides important reference and guarantee for cable application and safe operation of a power grid.
Claims (9)
1. The utility model provides a phase modifier engineering cable tensile fatigue test device, characterized by includes a base (1) and locates fixing base and the tensile seat (7) of activity on it, all be equipped with the horizontal cable pore that runs through the pedestal on tensile seat (7) and the fixing base, and the axis coincidence in two cable pore, tensile seat (7) can make a round trip the translation and latched position along the axis direction in cable pore on base (1), change the interval with the fixing base, are equipped with the first fastening structure and the second fastening structure of locking cable on tensile seat (7) and the fixing base respectively.
2. The phase modifier engineering cable tensile fatigue test device of claim 1, wherein the same translation guide mechanisms are arranged between the two sides of the stretching seat (7) and the base (1), and a locking mechanism capable of locking the position of the stretching seat (7) is arranged on the base (1) between the two translation guide mechanisms.
3. The phase modifier engineering cable tensile fatigue test device of claim 2, wherein the translation guide mechanism comprises a gear (11) rotatably connected to the side surface of the stretching seat (7) and a rack (6) fixed on the surface of the base (1), and the length direction of the rack (6) is parallel to the translation direction of the stretching seat (7).
4. The phase modifier engineering cable tensile fatigue test device according to claim 3, wherein two gears (11) at two sides of the tensile seat (7) are arranged on the same rotating shaft (9), the rotating shaft (9) is transversely arranged and rotatably arranged on the tensile seat (7) in a penetrating manner, the gears (11) are arranged at two ends of the rotating shaft (9) extending out of the tensile seat (7), and a hand wheel (8) is fixed at any end part of the rotating shaft (9).
5. The phase modifier engineering cable tensile fatigue test device of claim 2, wherein the locking mechanism comprises a bolt (10) and a locking block (19) arranged below the base (1), the base (1) is provided with a transverse groove (15) which extends along the translation direction of the stretching base (7) and penetrates through the base (1), the threaded end of the bolt (10) penetrates through a protruding part (71) extending out of the bottom of the stretching base (7) and the transverse groove (15) from top to bottom and then is in threaded connection with the locking block (19), the protruding part (71) is provided with a mounting hole matched with the bolt (10), and the locking block (19) is provided with a screw hole matched with the bolt (10); the bottom of the base (1) is provided with a plurality of support legs (18).
6. The phase modifier engineering cable tensile fatigue test device of claim 1, wherein a cylindrical shield (16) is suspended on the base (1), the shield (16) is positioned between the fixed seat and the stretching seat (7), the axis of the shield (16) is overlapped with the axis of the cable duct, and connecting plates (16-1) of an integrated structure extend out of two sides of the shield (16) to be fixed with the base (1).
7. The phase modifier engineering cable tensile fatigue test device of any one of claims 1 to 6, wherein the first fastening structure is arranged on one side of the stretching base (7) opposite to the base (1), the first fastening structure comprises a first U-shaped part (12) movably connected to the stretching base (7) and two first locking nuts (13) arranged at two ends of the first U-shaped part, two ends of the first U-shaped part (12) horizontally penetrate through a mounting hole formed in the stretching base (7) and extend out of the stretching base (7), and two ends of the first U-shaped part (12) are provided with external threads matched with the first locking nuts (13); the second fastening structure is arranged on one side of the fixed seat back-to-back stretching seat (7), the second fastening structure comprises a second U-shaped part (4) movably connected onto the fixed seat and second locking nuts (14) arranged at two ends of the second U-shaped part, two ends of the second U-shaped part (4) penetrate through a mounting hole formed in the fixed seat along the horizontal direction and extend out of the fixed seat, and external threads matched with the second locking nuts (14) are arranged at two ends of the second U-shaped part (4).
8. The phase modifier engineering cable tensile fatigue test device of claim 7, wherein 2-4 first U-shaped parts (12) are arranged on one side of the tensile seat (7) from top to bottom.
9. The phase modifier engineering cable tensile fatigue test device of claim 7, characterized in that the fixing base comprises a cylinder (3) and a mounting table (2) which are butted into an integral structure from top to bottom, the cylinder (3) is transversely fixed on the top surface of the mounting table, a cable duct of the fixing base is arranged on the cylinder (3), the axis of the cable duct is coincident with the axis of the cylinder (3), and the second fastening structure is arranged on the side surface of the mounting table (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122126614.2U CN215985584U (en) | 2021-09-02 | 2021-09-02 | Phase modifier engineering cable tensile fatigue test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122126614.2U CN215985584U (en) | 2021-09-02 | 2021-09-02 | Phase modifier engineering cable tensile fatigue test device |
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| Publication Number | Publication Date |
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| CN215985584U true CN215985584U (en) | 2022-03-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122126614.2U Active CN215985584U (en) | 2021-09-02 | 2021-09-02 | Phase modifier engineering cable tensile fatigue test device |
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| CN (1) | CN215985584U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115420609A (en) * | 2022-11-04 | 2022-12-02 | 江苏亚星锚链股份有限公司 | Anchor chain tension test equipment |
-
2021
- 2021-09-02 CN CN202122126614.2U patent/CN215985584U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115420609A (en) * | 2022-11-04 | 2022-12-02 | 江苏亚星锚链股份有限公司 | Anchor chain tension test equipment |
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