A power cable tension detection device

Abstract

The invention discloses a power cable tension detection device, which belongs to the field of power cable tension testing. The power cable tension detection device comprises a load-bearing device, wherein the middle part of the load-bearing device is rotatably connected with a rotating device, a plurality of linkage devices are clamped on the outer side of the rotating device, both ends of the upper side of the load-bearing device are detachably connected with limit devices, a measuring device is clamped between the two limit devices, a cable is clamped between the load-bearing device and the two limit devices, the load-bearing device comprises a base, both sides of the upper end of the base are fixedly connected with limit plates, an arc groove is provided on the upper end of the limit plate, and both sides of the upper end of the limit plate are fixedly connected with a first support block, so that a lateral tension test of the cable can be performed through the linkage device, and the different positions of the plurality of linkage devices on the rotating device make different positions of the cable subject to lateral tension, and the spring telescopic rod makes it difficult for the hook ring to slip when the cable is pulled.

Description

Technical Field

[0001] The present invention relates to the field of power cable tension testing, and more specifically, to a power cable tension detection device. Background Art

[0002] Power cables are the main materials for daily power transmission. Power cables usually need to transmit power over long distances, which requires tensile testing of the power cables.

[0003] Traditional tension testing devices on the market can only perform longitudinal tension testing on power cables. This testing method is not completely consistent with the direction of tension that power cables are subjected to in daily life. In daily work, power cables are usually subjected to lateral force due to freezing rain or entanglement of debris. The power cables are subjected to downward lateral tension, which cannot be accurately tested in traditional tension tests. In addition, it is not easy to perform flexible testing on the lateral tension that is locally received by the power cable, resulting in the inability to accurately judge the tension bearing capacity of the power cable, which is easy to cause damage to the power cable during later use. Summary of the invention

[0004] Technical issues to be solved

[0005] In view of the problems existing in the prior art, the purpose of the present invention is to provide a power cable tension detection device, which can realize the lateral tension test of the cable through a linkage device, and the different positions of multiple linkage devices on the rotating device make the cable subject to lateral tension at different positions, and the spring telescopic rod makes it difficult for the hook ring to slip when pulling the cable.

[0006] Technical Solution

[0007] To solve the above problems, the present invention adopts the following technical solutions.

[0008] A power cable tension detection device includes a bearing device, a rotating device is rotatably connected to the middle of the bearing device, a plurality of linkage devices are clamped on the outer side of the rotating device, both ends of the upper side of the bearing device are detachably connected to the limiting devices, a measuring device is clamped between the two limiting devices, a cable is clamped between the bearing device and the two limiting devices, and the bearing device includes a base, both sides of the upper end of the base are fixedly connected to the limiting plates, an arc groove is provided on the upper end of the limiting plate, both sides of the upper end of the limiting plate are fixedly connected to the first support block, the upper end of the base is fixedly connected to two brackets, a motor is fixedly installed on the upper end of the base, and a driving wheel is fixedly connected to the output end of the motor. The cable is tested for lateral tension through the linkage device, and the different positions of the plurality of linkage devices on the rotating device cause different positions of the cable to be subjected to lateral tension, and the spring telescopic rod makes it difficult for the hook ring to slip when pulling the cable.

[0009] Furthermore, the rotating device includes a shell, two retaining rings are fixedly connected at both ends of the shell, a driven wheel is fixedly connected to one end of the shell, a first convex strip is fixedly connected to the lower end of the shell, first screws are threadedly connected to both ends of the middle of the first convex strip, a first transfer block is rotatably connected to the upper end of the first screw, support blocks are fixedly connected to the upper ends of the two first transfer blocks, a second convex strip is fixedly connected to the upper end of the support block, and a strip groove is opened at the upper end of the shell so that the pull rope can be rotated and wound, thereby applying lateral pulling force to the cable.

[0010] Furthermore, the linkage device includes a cylindrical block, a circular hole is opened in the middle of the cylindrical block, grooves are opened in the middle of the cylindrical block at the upper and lower ends of the circular hole, an annular groove is opened in the middle of the cylindrical block, a pull rope is fixedly connected to the middle of the annular groove, the end of the pull rope away from the annular groove is fixedly connected to a hook ring, one end of the hook ring is fixedly connected to a reset hinge, the reset hinge is hinged with a buckle, rectangular grooves are opened on both sides of the upper end of the hook ring, a cross plate is fixedly connected to the middle of the rectangular groove, and a spring telescopic rod is fixedly connected to the lower end of the cross plate, so that the hook ring is not easy to deviate when a lateral tension is applied to the cable, and the cable can be subjected to lateral tension at different positions.

[0011] Furthermore, the limiting device includes a pressure block, which has two placement grooves on the upper end, and both parts of the lower end of the pressure block are fixedly connected to a second support block, a second screw is threadedly connected to the middle part of the pressure block, and the lower end of the second screw is rotatably connected to a second transfer block, and the lower end of the second transfer block is fixedly connected to a semicircular ring, so that cables of different specifications can be firmly fixed.

[0012] Furthermore, the measuring device includes a frame, two ends of which are fixedly connected to two protrusions, the middle of the frame is equidistantly slidably connected to a plurality of U-shaped frames, and the lower end of the middle of the U-shaped frame is fixedly connected to a vertical rod, so that the bending degree generated when the cable is subjected to lateral tension can be recorded.

[0013] Furthermore, the shell rotates in the middle of the two brackets, and two clamping rings located at the same end of the shell are respectively located on both sides of the bracket, so that the shell is not easily offset when rotating.

[0014] Furthermore, the driving wheel and the driven wheel are meshed and connected, and the first convex strip and the second convex strip are matched with the groove, so that the driving wheel can drive the driven wheel to rotate, and the first convex strip and the second convex strip can be inserted into the groove.

[0015] Furthermore, the second convex strip matches the strip groove, and the ends of the first screw and the second screw are both provided with annular protrusions, so that the second convex strip can pass through the strip groove, and the first screw is not easy to fall out from the middle of the first transfer block, and the second screw is not easy to fall out from the middle of the second transfer block.

[0016] Furthermore, a rubber pad is fixedly connected to the lower end of the spring telescopic rod, and the protrusion matches the placement groove, and scale lines are printed on the side of the vertical rod, so that the rubber pad can prevent the hook ring from deviating on the outside of the cable, and the measuring device can be fixed on the upper side of the limit device.

[0017] Beneficial Effects

[0018] Compared with the prior art, the advantages of the present invention are:

[0019] (1) This scheme uses a linkage device to perform a lateral tension test on the cable, and the different positions of the multiple linkage devices on the rotating device make the cable be subjected to lateral tension at different positions, and the spring telescopic rod makes it difficult for the hook ring to slip when pulling the cable.

[0020] (2) The movement of multiple linkage devices on the rotating device and the outer side of the cable enables the cable to be tested for lateral tension at different positions.

[0021] (3) The measuring device can measure and record the deformation of the cable caused by the lateral tension. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is an overall stereogram of the present invention;

[0023] Figure 2 It is an overall exploded view of the present invention;

[0024] Figure 3 It is a three-dimensional diagram of the carrying device of the present invention;

[0025] Figure 4 It is a half-section side view of the rotating device of the present invention;

[0026] Figure 5 for Figure 4 A partial enlarged view of;

[0027] Figure 6 It is a half-section front view schematic diagram of the rotating device of the present invention;

[0028] Figure 7 It is a three-dimensional diagram of the linkage device of the present invention;

[0029] Figure 8 for Figure 7 B is a partial enlarged view;

[0030] Fig. 9 It is a three-dimensional diagram of the limiting device of the present invention;

[0031] Fig.10 A partially cutaway stereoscopic view of the second screw, the second transfer block and the semicircular ring of the present invention

[0032] Fig.11 A three-dimensional diagram of the measuring device of the present invention;

[0033] Fig.12 It is a schematic diagram of the working state of the present invention.

[0034] Description of the numbers in the figure:

[0035] 1. Carrying device; 101. Base; 102. Limiting plate; 103. Arc groove; 104. First support block; 105. Bracket; 106. Motor; 107. Driving wheel; 2. Rotating device; 201. Housing; 202. Clamp ring; 203. Driven wheel; 204. First convex strip; 205. First screw; 206. First transfer block; 207. Support block; 208. Second convex strip; 209. Strip groove; 3. Linkage device; 301. Column block; 302. Round hole; 3 03. Groove; 304. Annular groove; 305. Pull rope; 306. Hook; 307. Reset hinge; 308. Buckle; 309. Rectangular groove; 310. Horizontal plate; 311. Spring telescopic rod; 4. Limiting device; 401. Pressing block; 402. Placement groove; 403. Second supporting block; 404. Second screw; 405. Second transfer block; 406. Semicircular ring; 5. Measuring device; 501. Frame; 502. Bump; 503. U-shaped frame; 504. Vertical rod; 6. Cable. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0037] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0038] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of the adapter model component. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] See also Figure 1-12 A power cable tension detection device comprises a bearing device 1, a rotating device 2 is rotatably connected to the middle of the bearing device 1, a plurality of linkage devices 3 are clamped on the outer side of the rotating device 2, both ends of the upper side of the bearing device 1 are detachably connected to the limiting devices 4, a measuring device 5 is clamped between the two limiting devices 4, a cable 6 is clamped between the bearing device 1 and the two limiting devices 4, the bearing device 1 comprises a base 101, both sides of the upper end of the base 101 are fixedly connected to the limiting plates 102, an arc groove 103 is opened on the upper end of the limiting plate 102, both sides of the upper end of the limiting plate 102 are fixedly connected to the first bracket 104, the upper end of the base 101 is fixedly connected to two brackets 105, a motor 106 is fixedly installed on the upper end of the base 101, and a driving wheel 107 is fixedly connected to the output end of the motor 106.

[0040] See also Figure 2-8The rotating device 2 includes a shell 201, two clamping rings 202 are fixedly connected at both ends of the shell 201, a driven wheel 203 is fixedly connected to one end of the shell 201, a first convex strip 204 is fixedly connected to the lower end of the shell 201, first screws 205 are threadedly connected to the two ends of the middle part of the first convex strip 204, a first transfer block 206 is rotatably connected to the upper end of the first screw 205, a support block 207 is fixedly connected to the upper end of the two first transfer blocks 206, a second convex strip 208 is fixedly connected to the upper end of the support block 207, and a strip groove 209 is opened at the upper end of the shell 201, so that the pull rope 305 can be rotated and wound, thereby applying a lateral pulling force to the cable 6. The linkage device 3 includes a cylindrical block 301, a circular hole 302 is opened in the middle of the cylindrical block 301, grooves 303 are opened in the middle of the cylindrical block 301 at the upper and lower ends of the circular hole 302, an annular groove 304 is opened in the middle of the cylindrical block 301, a pull rope 305 is fixedly connected to the middle of the annular groove 304, a hook ring 306 is fixedly connected to the end of the pull rope 305 away from the annular groove 304, one end of the hook ring 306 is fixedly connected to a reset hinge 307, the reset hinge 307 is hinged with a buckle 308, rectangular grooves 309 are opened on both sides of the upper end of the hook ring 306, a cross plate 310 is fixedly connected to the middle of the rectangular groove 309, and a spring telescopic rod 311 is fixedly connected to the lower end of the cross plate 310, so that the hook ring 306 is not easy to deviate when a lateral tension is applied to the cable 6, and the cable 6 can be applied with a lateral tension at different positions.

[0041] See also Figure 9-12 The limiting device 4 includes a pressing block 401, two placement grooves 402 are provided at the upper end of the pressing block 401, and the two lower ends of the pressing block 401 are fixedly connected to the second supporting block 403, and the middle part of the pressing block 401 is threadedly connected to the second screw 404, and the lower end of the second screw 404 is rotatably connected to the second transfer block 405, and the lower end of the second transfer block 405 is fixedly connected to a semicircular ring 406, so that cables 6 of different specifications can be firmly fixed. The measuring device 5 includes a frame 501, two protrusions 502 are fixedly connected at both ends of the frame 501, and a plurality of U-shaped frames 503 are equidistantly slidably connected in the middle of the frame 501, and a vertical rod 504 is fixedly connected to the lower end of the middle part of the U-shaped frame 503, so that the bending degree generated when the cable 6 is subjected to lateral tension can be recorded.

[0042] See also Figure 1-8 The housing 201 rotates in the middle of the two brackets 105, and the two snap rings 202 located at the same end of the housing 201 are located on both sides of the bracket 105, so that the housing 201 is not easily offset when rotating. The driving wheel 107 and the driven wheel 203 are meshed and connected, and the first convex strip 204 and the second convex strip 208 are matched with the groove 303, so that the driving wheel 107 can drive the driven wheel 203 to rotate, and the first convex strip 204 and the second convex strip 208 can be stuck in the groove 303.

[0043] See also Figure 1-11 , the second convex strip 208 matches the strip groove 209, and the first screw 205 and the second screw 404 are both provided with annular protrusions at their ends, so that the second convex strip 208 can pass through the strip groove 209, and the first screw 205 is not easy to come out of the middle of the first transfer block 206, and the second screw 404 is not easy to come out of the middle of the second transfer block 405. The lower end of the spring telescopic rod 311 is fixedly connected with a rubber pad, and the convex block 502 matches the placement groove 402, and the side of the vertical rod 504 is printed with scale lines, so that the rubber pad can prevent the hook ring 306 from deviating outside the cable 6, and the measuring device 5 can be fixed on the upper side of the limit device 4.

[0044] During the test, the cable 6 is first placed on the upper side of the two arc-shaped grooves 103, and then the two limit devices 4 are fixedly connected to the bearing device 1 through the first bracket 104, the second bracket 403 and the screws, and the second screw 404 is rotated to make the semicircular ring 406 move downward, and the two semicircular rings 406 and the arc groove 103 fix the cable 6, and the buckle 308 is rotated along the reset hinge 307 to separate the buckle 308 from the hook ring 306, and the hook ring 306 is hung on the outside of the cable 6, and the buckle 308 is released, and the buckle 308 is reset under the action of the reset hinge 307;

[0045] According to the position where the cable 6 needs to be tested for lateral tension, the column block 301 is moved to the position outside the shell 201, and then the hook ring 306 is moved to the top of the corresponding column block 301, and the first screw 205 is rotated so that the first screw 205 drives the second convex strip 208 to rise through the support block 207, and the second convex strip 208 extends from the strip groove 209 into the groove 303. At this time, the column block 301 is limited to the outside of the shell 201 by the first convex strip 204 and the second convex strip 208, and the measuring device 5 is inserted into the placement groove 402 through the convex block 502, and the multiple U-shaped frames 503 are pressed down so that the vertical rod 504 is in contact with the upper surface of the cable 6, and the position of the scale line on the outer surface of the vertical rod 504 on the upper surface of the frame 501 is recorded. The motor 106 is turned on, so that the motor 106 drives the driven wheel 203 to rotate through the driving wheel 107, so that the rotating device 2 rotates, and the pull rope 305 is wound around the outside of the annular groove 304. At the same time, the hook ring 306 applies a lateral tension to the cable 6. Due to the effect of the spring telescopic rod 311 and the rubber pad, the hook ring 306 is not easy to slip. When the motor 106 applies a specified tension, the cable 6 is bent and deformed, and the multiple U-shaped frames 503 are pressed down so that the lower end of the vertical rod 504 is in contact with the upper side of the bent cable 6. The measuring device 5 is removed from the upper end of the limiting device 4, and the position of the scale line on the outer surface of the vertical rod 504 on the upper surface of the frame 501 is recorded again. The difference between the scale lines on both sides is the bending degree of the cable 6.

[0046] The position of the linkage device 3 and the magnitude of the force applied by the motor 106 are moved multiple times to record the influence of different magnitudes of lateral tension at different positions on the bending degree of the cable 6 , thereby completing the tension detection of the cable 6 .

[0047] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A power cable tension detection device, comprising a load-bearing device (1), characterized in that: The middle part of the bearing device (1) is rotatably connected to a rotating device (2), the outer side of the rotating device (2) is clamped with a plurality of linkage devices (3), both ends of the upper side of the bearing device (1) are detachably connected to limit devices (4), a measuring device (5) is clamped between the two limit devices (4), and a cable (6) is clamped between the bearing device (1) and the two limit devices (4); The bearing device (1) comprises a base (101), both sides of the upper end of the base (101) are fixedly connected to a limit plate (102), the upper end of the limit plate (102) is provided with an arc groove (103), both sides of the upper end of the limit plate (102) are fixedly connected to a first support block (104), the upper end of the base (101) is fixedly connected to two brackets (105), the upper end of the base (101) is fixedly mounted with a motor (106), the output end of the motor (106) is fixedly connected to a driving wheel (107), and the rotating device (2) comprises a shell (201), both ends of the shell (201) are fixedly connected to two retaining rings (202), one end of the shell (201) is fixedly connected to The housing (201) is connected to a driven wheel (203); the lower end of the housing (201) is fixedly connected to a first convex strip (204); both ends of the middle portion of the first convex strip (204) are threadedly connected to first screws (205); the upper end of the first screw (205) is rotatably connected to a first transfer block (206); the upper ends of the two first transfer blocks (206) are fixedly connected to a support block (207); the upper ends of the support blocks (207) are fixedly connected to a second convex strip (208); the upper end of the housing (201) is provided with a strip groove (209); the linkage device (3) comprises a columnar block (301); the middle portion of the columnar block (301) is provided with a circular hole (302); the middle portion of the columnar block (301) is located on the circular hole (302); The lower ends are provided with grooves (303), the middle of the columnar block (301) is provided with an annular groove (304), the middle of the annular groove (304) is fixedly connected with a pull rope (305), the end of the pull rope (305) away from the annular groove (304) is fixedly connected with a hook ring (306), one end of the hook ring (306) is fixedly connected with a reset hinge (307), the reset hinge (307) is hinged with a buckle (308), the upper ends of the hook ring (306) are provided with rectangular grooves (309), the middle of the rectangular groove (309) is fixedly connected with a horizontal plate (310), the lower end of the horizontal plate (310) is fixedly connected with a spring telescopic rod (311), the limiting device (4) comprises a pressing block (40 1), the upper end of the pressing block (401) is provided with two placement grooves (402), the two lower ends of the pressing block (401) are fixedly connected to second supporting blocks (403), the middle part of the pressing block (401) is threadedly connected to a second screw (404), the lower end of the second screw (404) is rotatably connected to a second transfer block (405), the lower end of the second transfer block (405) is fixedly connected to a semicircular ring (406), the measuring device (5) comprises a frame (501), two ends of the frame (501) are fixedly connected to two protrusions (502), the middle part of the frame (501) is equidistantly slidably connected to a plurality of U-shaped frames (503), and the lower end of the middle part of the U-shaped frame (503) is fixedly connected to a vertical rod (504).

2. A power cable tension detection device according to claim 1, characterized in that: The housing (201) rotates in the middle of the two brackets (105), and two clamping rings (202) located at the same end of the housing (201) are located on both sides of the brackets (105) respectively.

3. A power cable tension detection device according to claim 1, characterized in that: The driving wheel (107) and the driven wheel (203) are meshed and connected, and the first convex strip (204) and the second convex strip (208) are matched with the groove (303).

4. A power cable tension detection device according to claim 1, characterized in that: The second convex strip (208) matches the strip-shaped groove (209), and an annular protrusion is provided at the end of the first screw (205) and the second screw (404).

5. The power cable tension detection device according to claim 1, characterized in that: The lower end of the spring telescopic rod (311) is fixedly connected to a rubber pad, the protrusion (502) matches the placement groove (402), and scale lines are printed on the side of the vertical rod (504).

Images