A cable strength testing device

Abstract

The present invention discloses a cable strength testing device, which relates to the technical field of cable strength testing, including a testing platform, wherein the top of the testing platform is fixedly connected to a testing base, the inner wall of the testing base is fixedly connected to a pneumatic push rod, and the output end of the pneumatic push rod is fixedly connected to a lifting rod, and by setting a lifting block and a connecting block, the pneumatic push rod drives the lifting block and the connecting block on the outer wall of the lifting rod to slide vertically, and the sliding of the lifting block drives the rotating guide column to slide synchronously, and the rotating guide column drives the connecting cylinder to rotate through the rotating guide groove, and the rotation of the connecting cylinder drives the bracket at the top of the rotating cylinder to rotate synchronously, and the rotation of the bracket drives the guide wheel to rotate synchronously. At the same time, the sliding of the connecting block drives the working base to slide along the inner wall of the bracket through the connecting rod, and the sliding of the working base drives the guide wheel to slide synchronously, and the movement of the guide wheel drives the testing cable to bend and stretch, thereby simulating the tensile stress conditions in real life, thereby greatly improving the accuracy of cable strength testing.

Description

Technical Field

[0001] The present invention relates to the technical field of cable strength detection, in particular to a cable strength detection device. Background Art

[0002] Wires and cables are wire products used to transmit electrical energy, information and realize electromagnetic energy conversion. After the cables are produced, they need to be tested for strength.

[0003] For example, the patent with publication number CN118464640A discloses a multi-point cable tensile strength testing device, including an operating table, with multiple groups of multi-angle stretching mechanisms and two-end stretching mechanisms arranged on the top of the operating table. The multiple groups of multi-angle stretching mechanisms are multiple groups of side panels, and a first bidirectional threaded rod is rotatably connected between one group of side panels. The outer walls of both ends of the first bidirectional threaded rod are meshed and connected with a first threaded sleeve, the top of the first threaded sleeve is fixedly connected to a first support rod, the top of the first support rod is fixedly connected to a semi-circular plate, and the top and bottom of the semi-circular plate are fixedly connected to the same connecting rod. Through the multi-angle stretching mechanism set up in this invention, the cable to be tested can be passed through multiple semi-circular plates during testing. During stretching, the hydraulic rod is used to stretch the same cable at multiple points, different angles, and different distances, so that the device can adjust the cable tensile test irregularly, enhance the test effect and strength, and make the device's cable testing not limited to horizontal stretching or folding.

[0004] The existing cable strength testing equipment directly stretches the cable when in use. Since the tensile stress conditions of the cable in real life are relatively complex, the cable is prone to fatigue, resulting in a decrease in the accuracy of cable strength testing and does not meet people's usage needs. For this reason, we propose a cable strength testing device. Summary of the Invention

[0005] The purpose of the present invention is to provide a cable strength detection device to solve the problem raised in the above background technology that the cable is prone to fatigue due to the complex tensile stress conditions of the cable in real life, which leads to a decrease in the accuracy of cable strength detection.

[0006] The top of the detection base is fixedly connected with the detection base, the inner wall of the detection base is fixedly connected with a pneumatic push rod, the output end of the pneumatic push rod is fixedly connected with a lifting rod, the outer wall of the lifting rod is fixedly connected with the lifting block, the side wall of the lifting block is fixedly connected with a rotating guide column, the outer wall of the rotating guide column is embedded with a connecting cylinder, the connecting part of the connecting cylinder and the rotating guide column is provided with a rotating guide groove, the outer wall of the connecting cylinder is fixedly connected with a rotating cylinder screwed with the top of the detection base, the top of the rotating cylinder is fixedly connected with the bracket, the top end of the lifting rod is screwed with a connecting block vertically slidably connected to the inner wall of the bracket, both ends of the connecting block are screwed with connecting rods, one end of the connecting rod is screwed with a working base slidably connected to the inner wall of the bracket, and the top of the working base is screwed with a guide wheel;

[0007] One end of the detection platform is fixedly connected to a fixing clamp, the end of the detection platform away from the fixing clamp is fixedly connected to a servo motor, the output end of the servo motor is fixedly connected to a working screw, the outer wall of the working screw is threadedly connected to a movable base, the top of the movable base is fixedly connected to a movable clamp, and the side wall of the detection platform is fixedly connected to a control box.

[0008] Based on the above structure, the pneumatic push rod drives the lifting block and the connecting block on the outer wall of the lifting rod to slide vertically. The sliding of the lifting block drives the rotating guide column to slide synchronously. The rotating guide column drives the connecting cylinder to rotate through the rotating guide groove. The rotation of the connecting cylinder drives the bracket at the top of the rotating cylinder to rotate synchronously. The rotation of the bracket drives the guide wheel to rotate synchronously. At the same time, the sliding of the connecting block drives the working base to slide along the inner wall of the bracket through the connecting rod. The sliding of the working base drives the guide wheel to slide synchronously. The movement of the guide wheel drives the detection cable to bend and stretch, thereby simulating the tensile stress conditions in real life, greatly improving the accuracy of cable strength detection.

[0009] Preferably, the top edge of the detection platform is fixedly connected with a baffle, the top of the baffle is fixedly connected with a fixed protective cover, the inner wall of the fixed protective cover is embedded with a rotating protective cover, the outer wall of the rotating protective cover is fixedly connected with a connecting guide bar that is slidably connected to the inner wall of the fixed protective cover, and the bottom of the rotating protective cover is located at the top of the detection platform and is fixedly connected with a positioning frame. During operation, the staff drives the connecting guide bar on the outer wall of the rotating protective cover to move along the inner wall of the fixed protective cover to realize the protection operation of the detection platform, avoid injuries to the staff due to breakage of the detection cable, and improve the safety performance of the cable strength detection equipment.

[0010] Preferably, the rotating guide groove is connected end to end in a "W" shape along the outer wall of the connecting cylinder, and the rotating cylinder forms a rotating structure with the detection base through the rotating guide column and the rotating guide groove, and the working base forms a sliding structure with the bracket through the connecting block and the connecting rod. Two groups of guide wheels are provided, and the detection cable is distributed in an "S" shape along the two groups of guide wheels. During operation, the sliding of the lifting block drives the rotating guide column to slide synchronously, and the rotating guide column drives the connecting cylinder to rotate through the rotating guide groove. The rotation of the connecting cylinder drives the bracket at the top of the rotating cylinder to rotate synchronously, and the rotation of the bracket drives the guide wheel to rotate synchronously. At the same time, the sliding of the connecting block drives the working base to slide along the inner wall of the bracket through the connecting rod. The sliding of the working base drives the guide wheel to slide synchronously, and the movement of the guide wheel drives the detection cable to bend and stretch, thereby simulating the tensile stress conditions in real life.

[0011] Preferably, the cross-sections of the fixed protective cover and the rotating protective cover are both arc-shaped, and the center of the fixed protective cover coincides with the center of the rotating protective cover. During operation, the staff drives the connecting guide bar on the outer wall of the rotating protective cover to move along the inner wall of the fixed protective cover to realize the protection operation of the detection platform.

[0012] Preferably, the inner wall of the fixing clamp is penetrated by a clamping screw, one end of the clamping screw is fixedly connected to a handwheel, the outer wall of the clamping screw is threaded with a sliding hole plate, the groove of the sliding hole plate is movably connected to a rotating guide plate, the top of the rotating guide plate is fixedly connected to a rotating disk screwed to the inner wall of the fixing clamp, the outer wall of the rotating disk is provided with a clamping guide groove, the groove of the clamping guide groove is movably connected to a clamping guide post, the outer wall of the fixing clamp is provided with a limiting guide groove movably connected to one end of the clamping guide post, the outer wall of the clamping guide post is fixedly connected to a telescopic block, and one end of the telescopic block is fixedly connected to the clamping The bottom end of the clamping block is fixedly connected with an anti-slip nail, and the side wall of the clamping block is fixedly connected with a force sensor. When working, the sliding hole plate slides through the rotating guide plate to drive the clamping guide groove on the outer wall of the rotating disk to rotate. The rotation of the clamping guide groove drives the clamping guide post to slide along the outer wall of the limit guide groove. The sliding of the clamping guide post drives the clamping block on the outer wall of the telescopic block to slide synchronously, so that the anti-slip nail on the outer wall of the clamping block is tightly fitted with the outer wall of the detection cable. Similarly, the other end of the detection cable is installed on the movable clamp to realize stable clamping operation on both ends of the detection cable, thereby preventing the outer jacket of the detection cable from being separated from the core when the detection cable is stretched.

[0013] Preferably, the internal structures of the fixed fixture and the movable fixture are the same, and the central axis of the fixed fixture and the central axis of the movable fixture coincide with each other, so that it is convenient to install the two ends of the detection cable on the fixed fixture and the movable fixture during operation.

[0014] Preferably, the inner wall of the positioning frame is fixedly connected with a working spring, one end of the working spring is fixedly connected to a connecting push plate, and both ends of the connecting push plate are provided with a connecting groove, and the groove of the connecting groove is movably connected with a positioning guide column, and the top end of the positioning guide column is fixedly connected to a positioning seat, and the inner wall of the positioning seat is slidably connected to a limit rod slidably connected to the inner wall of the positioning frame. The top end of the positioning seat is fixedly connected to a positioning block, and the outer wall of the positioning block is embedded with a connecting block fixedly connected to the bottom of the rotating protective cover. When working, the working spring drives the connecting grooves on both sides of the connecting push plate to slide synchronously through its own elastic force, and the sliding of the connecting groove drives the positioning seat to slide along the outer wall of the limit rod through the positioning guide column, and the sliding of the positioning seat drives the positioning block to engage with the connecting block, so as to realize stable positioning operation of the rotating protective cover after rotation, thereby avoiding accidental touching of the rotating protective cover, resulting in reduced safety performance of the cable strength detection equipment.

[0015] Preferably, the shape of the connecting groove is inclined, the shape of the positioning block is an inverted "L" shape, and the shape of the connecting block is an inverted "T" shape. During operation, the positioning seat slides to drive the positioning block and the connecting block to engage with each other, thereby realizing a stable positioning operation of the rotating protective cover after rotation.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. By setting the clamping block and anti-slip nails, the sliding hole plate slides through the rotating guide plate to drive the three groups of clamping guide grooves on the outer wall of the rotating disk to rotate synchronously. The rotation of the clamping guide groove drives the clamping guide post to slide along the outer wall of the limit guide groove. The sliding of the clamping guide post drives the clamping block on the outer wall of the telescopic block to slide synchronously, and the anti-slip nails on the outer wall of the clamping block are tightly fitted with the outer wall of the detection cable. Similarly, the other end of the detection cable is installed on the movable clamp to achieve stable clamping operation on both ends of the detection cable, thereby preventing the outer jacket of the detection cable from being separated from the core when the detection cable is stretched.

[0018] 2. By setting up a rotating protective cover and a fixed protective cover, the staff drives the connecting guide bar on the outer wall of the rotating protective cover to move along the inner wall of the fixed protective cover to realize the protection operation of the detection platform, avoid injuries to the staff due to the breakage of the detection cable, and improve the safety performance of the cable strength detection equipment.

[0019] 3. By setting the positioning block and the connecting block, the working spring drives the connecting grooves on both sides of the push plate to slide synchronously through its own elastic force. The sliding of the connecting groove drives the positioning seat to slide along the outer wall of the limit rod through the positioning guide column. The sliding of the positioning seat drives the positioning block to engage with the connecting block, thereby realizing stable positioning operation of the rotating protective cover after rotation, avoiding accidental touching of the rotating protective cover, which leads to reduced safety performance of the cable strength testing equipment.

[0020] 4. By setting the lifting block and the connecting block, the pneumatic push rod drives the lifting block and the connecting block on the outer wall of the lifting rod to slide vertically. The sliding of the lifting block drives the rotating guide column to slide synchronously. The rotating guide column drives the connecting cylinder to rotate through the rotating guide groove. The rotation of the connecting cylinder drives the bracket on the top of the rotating cylinder to rotate synchronously. The rotation of the bracket drives the guide wheel to rotate synchronously. At the same time, the sliding of the connecting block drives the working base to slide along the inner wall of the bracket through the connecting rod. The sliding of the working base drives the guide wheel to slide synchronously. The movement of the guide wheel drives the detection cable to bend and stretch, thereby simulating the tensile stress conditions in real life, greatly improving the accuracy of cable strength detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 Schematic diagram of the detection platform structure of the present invention;

[0023] Figure 3 It is a structural schematic diagram of the detection base of the present invention;

[0024] Figure 4 This is a schematic cross-sectional structural diagram of the detection base of the present invention;

[0025] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0026] Figure 6 This is a schematic diagram of the connection structure between the lifting block and the connecting block of the present invention;

[0027] Figure 7 This is a schematic diagram of the connecting tube of the present invention when it is laid out flat;

[0028] Figure 8 It is a schematic diagram of the fixing fixture structure of the present invention;

[0029] Figure 9 It is a schematic cross-sectional structural diagram of the fixing fixture of the present invention;

[0030] Figure 10 for Figure 9 Enlarged view of point B in the middle;

[0031] Figure 11 It is a schematic diagram of the structure of the clamping block of the present invention;

[0032] Figure 12 It is a schematic diagram of the structure of the rotating protective cover and the fixed protective cover of the present invention;

[0033] Figure 13 It is a schematic cross-sectional structural diagram of the positioning frame of the present invention.

[0034] In the figure: 1. Detection platform; 2. Detection base; 201. Pneumatic push rod; 202. Lifting rod; 203. Lifting block; 204. Rotating guide column; 205. Connecting cylinder; 206. Rotating guide groove; 207. Rotating cylinder; 208. Bracket; 209. Connecting block; 210. Connecting rod; 211. Working base; 212. Guide wheel; 3. Fixing fixture; 301. Clamping screw; 302. Hand wheel; 303. Sliding orifice plate; 304. Rotating guide plate; 305. Rotating disk; 306. Clamping guide groove; 307. Clamping guide column; 308. Limiting guide groove; 309, telescopic block; 310, clamping block; 311, anti-slip spike; 312, force sensor; 4, servo motor; 401, working screw; 402, movable base; 403, movable clamp; 5, control box; 6, baffle; 7, fixed protective cover; 701, rotating protective cover; 702, connecting guide bar; 8, positioning frame; 801, working spring; 802, connecting push plate; 803, connecting groove; 804, positioning guide column; 805, positioning seat; 806, limiting rod; 807, positioning block; 808, connecting block. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0036] See also Figures 1 to 7 In an embodiment of the present invention, a cable strength testing device includes a testing platform 1, a testing base 2 is fixedly connected to the top of the testing platform 1, a pneumatic push rod 201 is fixedly connected to the inner wall of the testing base 2, a lifting rod 202 is fixedly connected to the output end of the pneumatic push rod 201, a lifting block 203 is fixedly connected to the outer wall of the lifting rod 202, a rotating guide column 204 is fixedly connected to the side wall of the lifting block 203, a connecting cylinder 205 is embedded in the outer wall of the rotating guide column 204, and the connection between the connecting cylinder 205 and the rotating guide column 204 is fixedly connected. A rotating guide groove 206 is provided at the position, the outer wall of the connecting cylinder 205 is fixedly connected to a rotating cylinder 207 which is screwed to the top of the detection base 2, the top of the rotating cylinder 207 is fixedly connected to a bracket 208, the top of the lifting rod 202 is screwed to a connecting block 209 which is vertically slidably connected to the inner wall of the bracket 208, both ends of the connecting block 209 are screwed to connecting rods 210, one end of the connecting rod 210 is screwed to a working base 211 which is slidably connected to the inner wall of the bracket 208, and the top of the working base 211 is screwed to a guide wheel 212;

[0037] One end of the detection platform 1 is fixedly connected to a fixing clamp 3, and the end of the detection platform 1 away from the fixing clamp 3 is fixedly connected to a servo motor 4, the output end of the servo motor 4 is fixedly connected to a working screw 401, the outer wall of the working screw 401 is threadedly connected to a movable base 402, the movable base 402 is slidingly connected to the detection platform 1, the top of the movable base 402 is fixedly connected to a movable clamp 403, and the side wall of the detection platform 1 is fixedly connected to a control box 5.

[0038] Based on the above structure, the pneumatic push rod 201 drives the lifting block 203 and the connecting block 209 on the outer wall of the lifting rod 202 to slide vertically. The sliding of the lifting block 203 drives the rotating guide column 204 to slide synchronously. The rotating guide column 204 drives the connecting cylinder 205 to rotate through the rotating guide groove 206. The rotation of the connecting cylinder 205 drives the bracket 208 at the top of the rotating cylinder 207 to rotate synchronously. The rotation of the bracket 208 drives the guide wheel 212 to rotate synchronously. At the same time, the connecting block 209 slides through the connecting rod 210 to drive the working base 211 to slide along the inner wall of the bracket 208. The sliding of the working base 211 drives the guide wheel 212 to slide synchronously. The movement of the guide wheel 212 drives the detection cable to bend and stretch, thereby simulating the tensile stress conditions in real life, greatly improving the accuracy of cable strength detection.

[0039] For further information, see Figures 1 to 12 The top edge of the detection platform 1 is fixedly connected with a baffle 6, and the top of the baffle 6 is fixedly connected with a fixed protective cover 7. The inner wall of the fixed protective cover 7 is embedded with a rotating protective cover 701, and the outer wall of the rotating protective cover 701 is fixedly connected with a connecting guide bar 702 that is slidably connected to the inner wall of the fixed protective cover 7. The bottom of the rotating protective cover 701 is located at the top of the detection platform 1 and is fixedly connected with a positioning frame 8. During operation, the staff drives the connecting guide bar 702 on the outer wall of the rotating protective cover 701 to move along the inner wall of the fixed protective cover 7. It should be noted that after the detection cable is installed, the rotating protective cover 701 is manually pulled downward, so that the rotating protective cover 701 and the fixed protective cover 7 form a semicircular protective cover, thereby realizing the protection operation of the detection platform 1, avoiding injuries to staff due to breakage of the detection cable, and improving the safety performance of the cable strength detection equipment.

[0040] For further information, see Figures 4 to 7The rotating guide groove 206 is connected end to end in a "W" shape along the outer wall of the connecting cylinder 205. The rotating cylinder 207 forms a rotating structure with the detection base 2 through the rotating guide column 204 and the rotating guide groove 206. The working base 211 forms a sliding structure with the bracket 208 through the connecting block 209 and the connecting rod 210. There are two groups of guide wheels 212. The detection cables are distributed in an "S" shape along the two groups of guide wheels 212. When working, the lifting block 203 slides to drive the rotating guide column 204 to slide synchronously. The rotating guide column 204 The connecting tube 205 is driven to rotate through the rotating guide groove 206, and the rotation of the connecting tube 205 drives the bracket 208 at the top of the rotating tube 207 to rotate synchronously, and the rotation of the bracket 208 drives the guide wheel 212 to rotate synchronously. At the same time, the connecting block 209 slides through the connecting rod 210 to drive the working base 211 to slide along the inner wall of the bracket 208, and the sliding of the working base 211 drives the guide wheel 212 to slide synchronously. The movement of the guide wheel 212 drives the detection cable to bend and stretch, thereby simulating the tensile stress conditions in real life.

[0041] For further information, see Figure 12 The cross-sections of the fixed protective cover 7 and the rotating protective cover 701 are both arc-shaped, and the center of the fixed protective cover 7 coincides with the center of the rotating protective cover 701. During operation, the staff drives the connecting guide bar 702 on the outer wall of the rotating protective cover 701 to move along the inner wall of the fixed protective cover 7 to realize the protection operation of the detection platform 1.

[0042] For further information, see Figures 8 to 11The inner wall of the fixing fixture 3 is penetrated by a clamping screw 301, one end of the clamping screw 301 is fixedly connected to a hand wheel 302, the outer wall of the clamping screw 301 is threaded with a sliding hole plate 303, and a rotating guide plate 304 is movably connected in the groove of the sliding hole plate 303, and the top of the rotating guide plate 304 is fixedly connected to a rotating disk 305 screwed to the inner wall of the fixing fixture 3, and the outer wall of the rotating disk 305 is provided with a clamping guide groove 306, and a clamping guide post 307 is movably connected in the groove of the clamping guide groove 306, and a limiting guide groove 308 is provided on the outer wall of the fixing fixture 3 and movably connected to one end of the clamping guide post 307, and the outer wall of the clamping guide post 307 is fixedly connected to a telescopic block 309, and one end of the telescopic block 309 is fixedly connected to the clamping block 310. The bottom end of 310 is fixedly connected with an anti-slip nail 311, and the side wall of the clamping block 310 is fixedly connected with a force sensor 312. During operation, the sliding hole plate 303 slides through the rotating guide plate 304 to drive the clamping guide groove 306 on the outer wall of the rotating disk 305 to rotate, and the rotation of the clamping guide groove 306 drives the clamping guide column 307 to slide along the outer wall of the limit guide groove 308. The sliding of the clamping guide column 307 drives the clamping block 310 on the outer wall of the telescopic block 309 to slide synchronously, and the anti-slip nail 311 on the outer wall of the clamping block 310 is tightly fitted with the outer wall of the detection cable. Similarly, the other end of the detection cable is installed on the movable clamp 403 to achieve stable clamping operation on both ends of the detection cable to prevent the outer jacket of the detection cable from being separated from the core when the detection cable is stretched.

[0043] For further information, see Figure 2 The internal structures of the fixed fixture 3 and the movable fixture 403 are the same, and the central axis of the fixed fixture 3 coincides with the central axis of the movable fixture 403. When working, it is convenient to install the two ends of the detection cable on the fixed fixture 3 and the movable fixture 403.

[0044] For further information, see Figures 12 to 13The inner wall of the positioning frame 8 is fixedly connected with a working spring 801, one end of the working spring 801 is fixedly connected with a connecting push plate 802, both ends of the connecting push plate 802 are provided with a connecting groove 803, a positioning guide column 804 is movably connected in the groove of the connecting groove 803, the top of the positioning guide column 804 is fixedly connected with a positioning seat 805, the inner wall of the positioning seat 805 is slidably connected with a limiting rod 806 slidably connected to the inner wall of the positioning frame 8, the top of the positioning seat 805 is fixedly connected with a positioning block 807, and the outer wall of the positioning block 807 is engaged with a The connecting block 808 is fixedly connected to the bottom end of the rotating protective cover 701. When working, the working spring 801 drives the connecting grooves 803 on both sides of the connecting push plate 802 to slide synchronously through its own elastic force. The connecting grooves 803 slide through the positioning guide column 804 to drive the positioning seat 805 to slide along the outer wall of the limit rod 806. The positioning seat 805 slides and drives the positioning block 807 to engage with the connecting block 808, thereby realizing a stable positioning operation of the rotating protective cover 701 after rotation, avoiding accidental touching of the rotating protective cover 701, which leads to a reduction in the safety performance of the cable strength detection equipment.

[0045] For further information, see Figure 13 The shape of the connecting groove 803 is inclined, the shape of the positioning block 807 is an inverted "L" shape, and the shape of the connecting block 808 is an inverted "T" shape. During operation, the positioning seat 805 slides to drive the positioning block 807 to engage with the connecting block 808, thereby realizing a stable positioning operation of the rotating protective cover 701 after rotation.

[0046] The working principle of the present invention is: when using the cable strength testing equipment, first, the staff installs one end of the testing cable on the fixed clamp 3, the staff rotates the handwheel 302, the rotation of the handwheel 302 drives the sliding hole plate 303 to slide through the clamping screw 301, and the sliding hole plate 303 slides through the rotating guide plate 304 to drive the three groups of clamping guide grooves 306 on the outer wall of the rotating disk 305 to rotate synchronously, and the rotation of the clamping guide groove 306 drives the clamping guide post 307 to slide along the outer wall of the limiting guide groove 308, and the sliding of the clamping guide post 307 drives the clamping block 310 on the outer wall of the telescopic block 309 to slide synchronously, and the anti-slip nail 311 on the outer wall of the clamping block 310 is tightly fitted with the outer wall of the testing cable. Similarly, the other end of the testing cable is installed on the movable clamp 403 to achieve stable clamping operation on both ends of the testing cable to prevent the outer jacket of the testing cable from being separated from the core when the testing cable is stretched.

[0047] Then, the staff drives the connecting guide bar 702 on the outer wall of the rotating protective cover 701 to move along the inner wall of the fixed protective cover 7 to implement the protection operation of the detection platform 1, avoid injuries to the staff due to the breakage of the detection cable, and improve the safety performance of the cable strength detection equipment.

[0048] Next, the movement of the rotating protective cover 701 drives the connecting block 808 to embed into the positioning frame 8, and then, the working spring 801 drives the connecting grooves 803 on both sides of the connecting push plate 802 to slide synchronously through its own elastic force, and the connecting grooves 803 slide through the positioning guide column 804 to drive the positioning seat 805 to slide along the outer wall of the limiting rod 806, and the positioning seat 805 slides to drive the positioning block 807 to engage with the connecting block 808, thereby realizing a stable positioning operation of the rotating protective cover 701 after rotation, avoiding accidental touching of the rotating protective cover 701, which leads to a reduction in the safety performance of the cable strength detection equipment.

[0049] Next, the servo motor 4 works to drive the movable clamp 403 at the top of the movable base 402 to move relative to the fixed clamp 3 through the working screw 401, straightening the detection cable. Then, the force sensor 312 detects the tension exerted on the detection cable to realize the cable tensile strength detection operation.

[0050] At the same time, in the detection base 2, the pneumatic push rod 201 drives the lifting block 203 and the connecting block 209 on the outer wall of the lifting rod 202 to slide vertically, and the sliding of the lifting block 203 drives the rotating guide column 204 to slide synchronously, and the rotating guide column 204 drives the connecting cylinder 205 to rotate through the rotating guide groove 206. The rotation of the connecting cylinder 205 drives the bracket 208 at the top of the rotating cylinder 207 to rotate synchronously, and the rotation of the bracket 208 drives the guide wheel 212 to rotate synchronously. At the same time, the connecting block 209 slides through the connecting rod 210 to drive the working base 211 to slide along the inner wall of the bracket 208. The sliding of the working base 211 drives the guide wheel 212 to slide synchronously, and the movement of the guide wheel 212 drives the detection cable to bend and stretch, thereby simulating the tensile stress conditions in real life, greatly improving the accuracy of cable strength detection.

[0051] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A cable strength testing device, comprising a testing platform, characterized in that: The top of the detection platform is fixedly connected to the detection base, the inner wall of the detection base is fixedly connected to the pneumatic push rod, the output end of the pneumatic push rod is fixedly connected to the lifting rod, the outer wall of the lifting rod is fixedly connected to the lifting block, the side wall of the lifting block is fixedly connected to the rotating guide column, the outer wall of the rotating guide column is embedded with a connecting cylinder, and a rotating guide groove is provided at the connecting portion of the connecting cylinder and the rotating guide column. The outer wall of the connecting cylinder is fixedly connected to the rotating cylinder screwed to the top of the detection base, the top of the rotating cylinder is fixedly connected to the bracket, the top of the lifting rod is screwed to a connecting block vertically slidably connected to the inner wall of the bracket, both ends of the connecting block are screwed to connecting rods, one end of the connecting rod is screwed to a working base slidably connected to the inner wall of the bracket, and the top of the working base is screwed to a guide wheel; One end of the detection platform is fixedly connected to a fixing fixture, the end of the detection platform away from the fixing fixture is fixedly connected to a servo motor, the output end of the servo motor is fixedly connected to a working screw, the outer wall of the working screw is threadedly connected to a movable base, the top of the movable base is fixedly connected to a movable fixture, and the side wall of the detection platform is fixedly connected to a control box; The rotating guide groove is connected end to end in a "W" shape along the outer wall of the connecting cylinder. The rotating cylinder and the detection base form a rotating structure through the rotating guide column and the rotating guide groove. The working base and the bracket form a sliding structure through the connecting block and the connecting rod. There are two sets of guide wheels, and the detection cables are distributed in an "S" shape along the two sets of guide wheels. The inner wall of the fixing clamp is penetrated by a clamping screw, one end of the clamping screw is fixedly connected to a handwheel, the outer wall of the clamping screw is threaded with a sliding hole plate, and a rotating guide plate is movably connected in the groove of the sliding hole plate. The top of the rotating guide plate is fixedly connected to a rotating disk screwed to the inner wall of the fixing clamp, and a clamping guide groove is provided on the outer wall of the rotating disk, and a clamping guide post is movably connected in the groove of the clamping guide groove. A limiting guide groove movably connected to one end of the clamping guide post is provided on the outer wall of the fixing clamp, and a telescopic block is fixedly connected to the outer wall of the clamping guide post, and one end of the telescopic block is fixedly connected to the clamping block, the bottom end of the clamping block is fixedly connected with an anti-slip nail, and the side wall of the clamping block is fixedly connected to a force sensor; The internal structures of the fixed fixture and the movable fixture are the same, and the central axis of the fixed fixture coincides with the central axis of the movable fixture.

2. A cable strength testing device according to claim 1, characterized in that: The top edge of the detection platform is fixedly connected to a baffle, the top of the baffle is fixedly connected to a fixed protective cover, the inner wall of the fixed protective cover is embedded with a rotating protective cover, the outer wall of the rotating protective cover is fixedly connected to a connecting guide bar that is slidably connected to the inner wall of the fixed protective cover, and a positioning frame is fixedly connected to the top of the detection platform below the rotating protective cover.

3. A cable strength testing device according to claim 2, characterized in that: The cross sections of the fixed protective cover and the rotating protective cover are both arc-shaped, and the center of the fixed protective cover coincides with the center of the rotating protective cover.

4. A cable strength testing device according to claim 2, characterized in that: The inner wall of the positioning frame is fixedly connected with a working spring, one end of the working spring is fixedly connected with a connecting push plate, both ends of the connecting push plate are provided with connecting grooves, a positioning guide column is movably connected in the connecting groove, the top of the positioning guide column is fixedly connected with a positioning seat, the inner wall of the positioning seat is slidably connected with a limit rod slidably connected to the inner wall of the positioning frame, the top of the positioning seat is fixedly connected with a positioning block, and the outer wall of the positioning block is embedded with a connecting block fixedly connected to the bottom end of the rotating protective cover.

5. A cable strength testing device according to claim 4, characterized in that: The shape of the connecting groove is inclined, the shape of the positioning card block is an inverted "L" shape, and the shape of the connecting card block is an inverted "T" shape.

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