Anchor chain fixed section tension detection device and detection method thereof

Abstract

The invention relates to the technical field of anchor chain tension detection, and discloses an anchor chain fixed section tension detection device and a detection method thereof.The anchor chain fixed section tension detection device comprises a tension detection mechanism, the top end of the tension detection mechanism is connected with a tension control mechanism, and one end of the top of the tension control mechanism is connected with an anchor chain fixed section control mechanism; through the arrangement of the tension detection mechanism, the to-be-detected anchor chain is detected under different conditions of an air reference state, a seawater corrosion state and a blending load state, so that the overall breaking strength index of the anchor chain can be obtained, and the tensile strength of the anchor chain can be detected by controlling the tension change, the wave load and the seawater corrosion effect of the anchor chain. Different service conditions of the anchor chain in an air reference state, a seawater corrosion state and a blending load state are simulated; by comparing and analyzing the mechanical properties of the anchor chain in different states, the weak link of the anchor chain can be accurately positioned, the failure mechanism of the anchor chain can be revealed, and an important reference is provided for maintenance and replacement of the anchor chain.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of anchor chain tension detection, and particularly relates to an anchor chain section tension detection device and a detection method thereof. BACKGROUND

[0002] As a key force component connecting the ship body and the anchor, the core function of the anchor chain includes: establishing the mechanical transmission path of the anchoring system, buffering the environmental load impact, and maintaining the reliable bottom grabbing state of the anchor. The typical anchor chain system is composed of an anchor end chain link, a transition chain link and a terminal chain link, and adopts a rack / without rack link structure form, wherein the former is widely used in large ships due to its higher structural strength.

[0003] The influence of the marine environment on the mechanical properties of the anchor chain presents a multi-dimensional characteristic: the seawater medium accelerates the material deterioration process through electrochemical reaction, the buoyancy effect changes the actual stress distribution, and the wave load introduces a dynamic fatigue factor. The coupling effect of these environmental elements leads to significant differences in the mechanical response of the anchor chain in air and seawater medium, specifically in the variation of key parameters such as yield strength attenuation, fatigue life shortening and stress concentration in the interface area.

[0004] In the prior art, the existing detection device lacks environmental simulation capability, and cannot quantify the influence threshold of medium difference on mechanical properties. The traditional detection scheme mainly has three technical bottlenecks: first, the detection scene is limited, and the conventional land-based test can only simulate static tensile load and cannot reproduce the multi-physical field coupling effect of the marine environment; second, the medium effect is missing, the existing equipment does not establish a dynamic corrosion-stress interaction model under seawater medium, resulting in systematic deviation between the detection data and the real service state; third, the failure mechanism analysis is insufficient, the traditional detection can only obtain the overall fracture strength index, and cannot analyze the local failure characteristics of different service areas such as air / sea interface area and full immersion area, and cannot accurately locate the weak link.

[0005] Therefore, it is necessary to invent an anchor chain section tension detection device and a detection method to solve the above problems, which can realize the comparative analysis of the mechanical properties of the anchor chain material in the air reference state, the seawater corrosion state and the mixed load state, and accurately locate the weak link. SUMMARY

[0006] In view of the above problems, the application provides an anchor chain section tension detection device and a detection method to solve the problems raised in the background art.

[0007] To achieve the above purpose, the application provides the following technical scheme: an anchor chain section tension detection device and a detection method, comprising a tension detection mechanism, the top end of the tension detection mechanism is connected with a tension control mechanism, one end of the top of the tension control mechanism is connected with an anchor chain section control mechanism, wherein,

[0008] The tension detection mechanism comprises a detection protection box, one end of the top of the detection protection box is provided with a positioning groove, the inner wall of the positioning groove is fixedly provided with a hydraulic cylinder, the output end of the hydraulic cylinder is fixedly provided with a tension control frame, the two sides of the tension control frame are both fixedly provided with a limiting strip, one end of the two sides of the detection protection box is both provided with a limiting groove, and the tension control frame is slidably connected with the limiting groove through the limiting strip.

[0009] The other side of the detection protection box is fixedly provided with a sliding frame, one side of the sliding frame is provided with a sliding groove, the middle position of the sliding frame is rotatably provided with a positioning lead screw, the outer wall of the positioning lead screw is threadedly provided with a lifting seat, one end of the lifting seat is connected with an anchor chain, the top end of the sliding frame is fixedly provided with a first motor, and the output end of the first motor is fixedly connected with the top end of the positioning lead screw.

[0010] The two ends of the inner wall bottom of the detection protection box are both fixedly provided with electrode sheets.

[0011] Preferably, the two ends of one side of the tension control frame are both fixedly provided with balance rods, the two ends of the top of one side of the detection protection box are both provided with balance grooves, and one end of the outer wall of each of the two balance rods is slidably connected with the inner wall of each of the two balance grooves.

[0012] Preferably, the tension control mechanism comprises a tension control frame, a fixing lead screw is rotatably arranged at the middle position of the tension control frame, one end of the outer wall of the fixing lead screw is threadedly connected with the middle position of the tension control frame, one end of the tension control frame is fixedly provided with a fixing frame, a second motor is fixedly arranged at the middle position of the fixing frame, the output end of the second motor is fixedly connected with one end of the fixing lead screw, and the two sides of the top of the tension control frame are both provided with moving grooves, and the two ends of the tension control frame are slidably connected with the top end of the tension control frame through the moving grooves.

[0013] Preferably, the tension control mechanism further comprises a support frame fixedly arranged at one end of the top of the tension control frame, an anchor chain winding frame is rotatably arranged at the top end of the support frame, the two ends of the outer wall of the anchor chain winding frame are both fixedly provided with protective rings, one end of the support frame is fixedly provided with a driving motor, the output end of the driving motor is fixedly connected with one end of the anchor chain winding frame, and the other end of the anchor chain is wound through the anchor chain winding frame.

[0014] Preferably, the anchor chain section control mechanism includes a positioning seat fixed at the other end of the top of the tension control frame, a rotating control frame is rotatably arranged at the middle position of the positioning seat, a fixed seat is fixedly arranged at one end of the bottom of the rotating control frame, an adjusting lead screw is rotatably arranged at the middle position of the fixed seat, a moving seat is threadedly arranged at one end of the outer wall of the adjusting lead screw, a moving frame is fixedly arranged at one end of the top of the moving seat, a through slot is formed in one end of the rotating control frame, a connecting frame is fixedly arranged at one end of the moving frame through the through slot, three penetrating shafts are fixedly arranged at one end of the connecting frame, a third motor is fixedly arranged at one side of the fixed seat, and the output end of the third motor is fixedly connected with one end of the adjusting lead screw.

[0015] Preferably, three supporting seats are fixedly arranged at both ends of the top of the rotating control frame, and two ends of the three penetrating shafts are respectively correspondingly arranged at six supporting seats.

[0016] Preferably, a bionic mechanism is connected to the bottom end of the inner wall of the detection protection box, the bionic mechanism includes stirring wheels rotatably arranged at both ends of the bottom of the inner wall of the detection protection box, chain wheels are fixedly arranged at the bottom ends of the two stirring wheels and penetrate through the detection protection box, the outer walls of the two chain wheels are transmission-connected through a chain, a groove is formed at the middle position of the bottom of the detection protection box, the two chain wheels and the chain are located in the inside of the groove, a connecting shaft is fixedly arranged at the top end of one of the stirring wheels, a supporting table is fixedly arranged at one end of the inner wall of the detection protection box, a first helical gear is rotatably arranged at the middle position of one side of the supporting table, a second helical gear is rotatably arranged at the middle position of the top of the supporting table, the tooth surface of the first helical gear is engaged with the tooth surface of the second helical gear, the top end of the connecting shaft is fixedly connected with the bottom end of the second helical gear through the supporting table, a fourth motor is fixedly arranged at one side of the detection protection box, a fixed shaft is fixedly arranged at the output end of the fourth motor, and one end of the fixed shaft is fixedly connected with one end of the first helical gear through the supporting table.

[0017] Preferably, a positioning gear is fixedly arranged at the bottom end of one of the stirring wheels, a positioning rack is engaged with the tooth surface of the positioning gear, a wave making plate is fixedly arranged at one end of the positioning rack, a balance frame is fixedly arranged at one end of the wave making plate, one side of the balance frame is in contact with one side of the positioning gear, a sliding bar is fixedly arranged at the bottom end of the inner wall of the detection protection box, and the bottom end of the wave making plate is in sliding contact with the top end of the sliding bar.

[0018] Preferably, an intelligent control panel is fixedly arranged at one side of the detection protection box, and the first motor, the second motor, the third motor, the fourth motor, the driving motor and the hydraulic cylinder are electrically connected with an external power supply through the intelligent control panel.

[0019] Preferably, an anchor chain section tension detection method is provided, and the method is as follows.

[0020] Step one, the end of the anchor chain is pulled out a certain distance and positioned and installed at one end of the lifting seat, the output end of the driving motor fixed at one end of the support frame drives the anchor chain winding frame to rotate, so that the length of the anchor chain is controlled, the other force end of the anchor chain is placed at the top of the rotary control frame for positioning, the output end of the third motor fixed on one side of the fixed seat drives the adjusting screw to rotate, so that the moving seat at one end of the adjusting screw drives the moving frame and the connecting frame to move, the penetrating shaft connected to one side of the connecting frame penetrates through the hole diameter of the anchor chain, and the both ends of the penetrating shaft are extruded and assisted by the support seat, so that the preparation work of the anchor chain tension detection is completed;

[0021] Step two, pour seawater into the detection protection box, the height of the seawater is flush with the height of the support table, the electrode sheet is powered on through the external power supply equipment, and the electrolysis reaction is carried out;

[0022] Step three, the output end of the first motor fixed at the top of the sliding frame drives the positioning screw to rotate, so that the lifting seat threaded on the outer wall of the positioning screw drives the fixed end of the anchor chain to rise to the corresponding position through the sliding groove, so that the anchor chain segment to be detected tends to be in a state of being about to be tightened;

[0023] Step four, the output end of the fourth motor fixed on one side of the detection protection box drives the fixed shaft to reciprocate, so that the fixed shaft drives the first bevel gear to rotate, the tooth surface of the first bevel gear is engaged with the tooth surface of the second bevel gear, so that the second bevel gear drives one of the stirring wheels to rotate through the connecting shaft, the chain wheel fixed at the bottom of the stirring wheel is transmission connected with the chain, so that the two stirring wheels rotate synchronously, so that the seawater in the detection protection box rotates, the tooth surface of the positioning gear fixed at the bottom of one of the stirring wheels is engaged with the tooth surface of the positioning rack, so that the wave making plate fixed at one end of the positioning rack reciprocates along the sliding bar opened at the bottom end of the detection protection box, so that the wave making plate drives the seawater in the detection protection box to reciprocate and make waves, so that half the length of the anchor chain is soaked in the seawater in this environment for a certain period of time;

[0024] Step five, at the same time, the output end of the second motor fixed in the fixed frame drives the fixed screw to rotate, so that the tension control frame threaded on the outer wall of the fixed screw moves, so that the tension control frame slides along the top end of the tension control frame and drives the anchor chain to be tensioned, so that the anchor chain is in an environment with changing tension for a certain period of time;

[0025] Step six, by the high pressure pulling force of the hydraulic cylinder fixed at the top of the detection protection box, the end of the anchor chain to be detected is pulled, the output end of the hydraulic cylinder drives the tension control frame to move, the limiting strips fixed at both ends of the tension control frame slide in the limiting grooves opened on both sides of the detection protection box, the tension is kept stable, the anchor chain is pulled until it breaks, the stress value of the anchor chain is obtained, the anchor chain breaking position is observed, and the stress of the anchor chain in the air reference state, seawater corrosion state and mixed load state is judged.

[0026] Technical effects and advantages of the present application:

[0027] 1, through the setting of the tension detection mechanism, the anchor chain to be detected is divided into different conditions in the air reference state, seawater corrosion state and mixed load state for detection, not only the overall breaking strength index of the anchor chain can be obtained, but also the tension change, wave load and seawater corrosion effect of the anchor chain can be controlled to simulate different service conditions of the anchor chain in the air reference state, seawater corrosion state and mixed load state; by comparing and analyzing the mechanical properties of the anchor chain in different states, the weak link of the anchor chain can be accurately positioned, and the failure mechanism is revealed, which provides an important reference for the maintenance and replacement of the anchor chain.

[0028] 2, by setting the electrode sheet in the detection protection box and electrifying to carry out electrolysis reaction, the corrosion effect of seawater medium on the anchor chain material is simulated, and a dynamic corrosion-stress interaction model under seawater medium is constructed combined with dynamic wave load; this design effectively makes up for the deficiency of the existing equipment in medium effect consideration, so that the detection data can more accurately reflect the mechanical property change of the anchor chain in seawater environment, and provides a scientific basis for the design and material selection of the anchor chain.

[0029] 3, the present application innovatively introduces a bionic mechanism, through the design of the stirring wheel and the wave board, the dynamic wave and flow effect of the marine environment can be simulated in the detection process, so that the anchor chain can be partially soaked in the simulated seawater during detection, and experience similar mechanical and chemical interaction with the real marine environment; this improvement solves the problem of large detection scene limitation in the prior art, so that the detection result is closer to the actual service state of the anchor chain.

[0030] Other features and advantages of the present application will be set forth in the following description, and in part will become apparent to those skilled in the art from the description, or can be learned by practice of the present application. The objects and other advantages of the present application can be realized and obtained by the structure indicated in the specification, claims and drawings. BRIEF DESCRIPTION OF DRAWINGS

[0031] In order to make the technical solutions in the embodiments of the present application or the prior art clearer, the accompanying drawings needed in the embodiments or prior art description will be briefly introduced. Obviously, the accompanying drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort based on these drawings.

[0032] Figure 1 is a schematic diagram of the anchor chain section tension detection device of the present application;

[0033] Figure 2 is a state one cross-sectional schematic diagram of the anchor chain section tension detection device of the present application;

[0034] Figure 3 is a state two cross-sectional schematic diagram of the anchor chain section tension detection device of the present application;

[0035] Figure 4 is a schematic diagram of the tension detection mechanism of the present application;

[0036] Figure 5 is a schematic diagram of the bionic mechanism of the present application;

[0037] Figure 6 is a schematic diagram of the tension detection mechanism of the present application;

[0038] Figure 7 is a schematic diagram of the tension control mechanism and the anchor chain section control mechanism distribution of the present application;

[0039] Figure 8 is a schematic diagram of the tension control mechanism of the present application;

[0040] Figure 9 is a schematic diagram of the anchor chain section control mechanism distribution of the present application;

[0041] Figure 10 is a schematic diagram of the anchor chain section control mechanism angle one of the present application;

[0042] Figure 11 is a schematic diagram of the anchor chain section control mechanism angle two of the present application;

[0043] Figure 12 is another state schematic diagram of the anchor chain section control mechanism of the present application.

[0044] In the figure: 1, tension detection mechanism; 101, detection protection box; 102, positioning groove; 103, balance groove; 104, limiting groove; 105, groove; 106, sliding bar; 107, sliding frame; 108, positioning lead screw; 109, sliding groove; 110, first motor; 111, electrode sheet; 112, lifting seat; 113, hydraulic cylinder; 114, tension control frame; 115, balance bar; 116, limiting bar; 2, anchor chain; 3, tension control mechanism; 301, tension control frame; 302, fixed lead screw; 303, moving groove; 304, fixed frame; 305, second motor; 306, support frame; 307, anchor chain winding frame; 308, protection ring; 309, drive motor; 4, anchor chain section control mechanism; 401, positioning seat; 402, rotating control frame; 403, fixed seat; 404, adjusting lead screw; 405, third motor; 406, moving seat; 407, moving frame; 408, connecting frame; 409, penetrating shaft; 410, support seat; 411, through groove; 5, bionic mechanism; 501, stirring wheel; 502, sprocket; 503, chain; 504, positioning gear; 505, positioning rack; 506, wave board; 507, balance frame; 508, connecting shaft; 509, support table; 510, first helical gear; 511, second helical gear; 512, fixed shaft; 513, fourth motor. DETAILED DESCRIPTION

[0045] To make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0046] The present application provides an anchor chain section tension detection device and a detection method thereof as shown in Figures 1-12 The present application provides an anchor chain section tension detection device and a detection method thereof as shown in

[0047] The tension detection mechanism 1 comprises a detection protection box 101, one end of the top of the detection protection box 101 is provided with a positioning groove 102, the inner wall of the positioning groove 102 is fixedly provided with a hydraulic cylinder 113, the output end of the hydraulic cylinder 113 is fixedly provided with a tension control frame 114, the two sides of the tension control frame 114 are both fixedly provided with a limiting bar 116, one end of the two sides of the detection protection box 101 is both provided with a limiting groove 104, and the tension control frame 114 is slidably connected with the limiting groove 104 through the limiting bar 116;

[0048] The end of the anchor chain 2 to be detected is pulled by the high-pressure pulling force of the hydraulic cylinder 113 fixed at the top end of the detection protection box 101, so that the output end of the hydraulic cylinder 113 drives the pulling force control frame 114 to move, and the limiting strips 116 fixed at both ends of the pulling force control frame 114 slide in the limiting grooves 104 opened on both sides of the detection protection box 101, so that the pulling force is stable, the anchor chain 2 is pulled until it breaks, the stress value of the anchor chain 2 is obtained, the breaking position of the anchor chain 2 is observed, and the stress of the anchor chain 2 in the air reference state, the seawater corrosion state and the mixed load state is judged. The mechanical properties in the air reference state, the seawater corrosion state and the mixed load state are compared and analyzed, and the weak link is accurately positioned;

[0049] The other side of the detection protection box 101 is fixedly provided with a sliding frame 107, one side of the sliding frame 107 is provided with a sliding groove 109, and a positioning lead screw 108 is rotatably arranged at the middle position of the sliding frame 107. The outer wall of the positioning lead screw 108 is threadedly provided with a lifting seat 112, one end of the lifting seat 112 is connected with the anchor chain 2, and the top end of the sliding frame 107 is fixedly provided with a first motor 110. The output end of the first motor 110 is fixedly connected with the top end of the positioning lead screw 108;

[0050] The output end of the first motor 110 fixed at the top end of the sliding frame 107 drives the positioning lead screw 108 to rotate, so that the lifting seat 112 threadedly connected to the outer wall of the positioning lead screw 108 drives the end of the anchor chain 2 to rise to the corresponding position through the sliding groove 109, so that the anchor chain 2 to be detected tends to be in a state of being about to be tightened;

[0051] The bottom of the inner wall of the detection protection box 101 is fixedly provided with electrode sheets 111 at both ends;

[0052] Seawater is filled in the detection protection box 101, the height of the seawater is flush with the height of the supporting table 509, the electrode sheets 111 are electrified by an external electrification device, and electrolytic reaction is carried out;

[0053] The two ends of one side of the pulling force control frame 114 are fixedly provided with balance rods 115, and the two ends of the top of one side of the detection protection box 101 are provided with balance grooves 103. One end of the outer wall of each of the two balance rods 115 is slidably connected with the inner wall of each of the two balance grooves 103.

[0054] As a specific embodiment of the present application, the tension control mechanism 3 comprises a tension control frame 301, a fixed lead screw 302 is rotatably arranged at the middle position of the tension control frame 301, one end of the outer wall of the fixed lead screw 302 is threadedly connected with the middle position of the tension control frame 301, a fixed frame 304 is fixedly arranged at one end of the tension control frame 301, a second motor 305 is fixedly arranged at the middle position of the fixed frame 304, the output end of the second motor 305 is fixedly connected with one end of the fixed lead screw 302, and a moving groove 303 is arranged at the top of the tension control frame 301 and the two sides of the tension control frame 301 are slidably connected with the top of the tension control frame 301 through the moving groove 303;

[0055] The tension control mechanism 3 further comprises a support frame 306 fixedly arranged at one end of the top of the tension control frame 301, an anchor chain winding frame 307 is rotatably arranged at the top of the support frame 306, a protective ring 308 is fixedly arranged at the two ends of the outer wall of the anchor chain winding frame 307, a driving motor 309 is fixedly arranged at one end of the support frame 306, and the output end of the driving motor 309 is fixedly connected with one end of the anchor chain winding frame 307, and the other end of the anchor chain 2 is wound through the anchor chain winding frame 307;

[0056] The output end of the second motor 305 fixedly arranged in the fixed frame 304 drives the fixed lead screw 302 to rotate, so that the tension control frame 301 threadedly connected with the outer wall of the fixed lead screw 302 moves, the tension control frame 301 slides along the top of the tension control frame 301, and the anchor chain 2 is tensioned and controlled, so that the anchor chain 2 is in a tension changing environment for a certain period of time.

[0057] As a specific embodiment of the present application, the anchor chain section control mechanism 4 comprises a positioning seat 401 fixedly arranged at the other end of the top of the tension control frame 301, a rotating control frame 402 is rotatably arranged at the middle position of the positioning seat 401, a fixed seat 403 is fixedly arranged at one end of the bottom of the rotating control frame 402, an adjusting lead screw 404 is rotatably arranged at the middle position of the fixed seat 403, a moving seat 406 is threadedly arranged at one end of the outer wall of the adjusting lead screw 404, a moving frame 407 is fixedly arranged at one end of the top of the moving seat 406, a through slot 411 is arranged at one end of the rotating control frame 402, a connecting frame 408 is fixedly arranged at one end of the moving frame 407 through the through slot 411, three penetrating shafts 409 are fixedly arranged at one end of the connecting frame 408, a third motor 405 is fixedly arranged at one side of the fixed seat 403, and the output end of the third motor 405 is fixedly connected with one end of the adjusting lead screw 404;

[0058] Three support seats 410 are fixedly arranged at the two ends of the top of the rotating control frame 402, and the two ends of the three penetrating shafts 409 are respectively in position correspondence with the six support seats 410;

[0059] The end of the anchor chain 2 is positioned and installed at one end of the lifting seat 112 after being pulled out a certain distance, the output end of the driving motor 309 fixed at one end of the support frame 306 drives the anchor chain winding frame 307 to rotate, the length of the anchor chain 2 is controlled through the protection of the protection ring 308, the other force receiving end of the anchor chain 2 is placed at the top of the rotary control frame 402 for positioning, the output end of the third motor 405 fixed at one side of the fixed seat 403 drives the adjusting lead screw 404 to rotate, so that the moving seat 406 at one end of the adjusting lead screw 404 drives the moving frame 407 and the connecting frame 408 to move, so that the penetrating shaft 409 connected to one side of the connecting frame 408 penetrates through the hole diameter of the anchor chain 2, and the two ends of the penetrating shaft 409 are extruded and assisted by the support seat 410 to bear force, thereby completing the preparation work of the anchor chain 2 tension detection.

[0060] As a specific embodiment of the present application, the bottom end of the detection protection box 101 is connected with a bionic mechanism 5, the bionic mechanism 5 includes stirring wheels 501 rotating at both ends of the bottom of the inner wall of the detection protection box 101, the bottom ends of the two stirring wheels 501 are fixed with sprockets 502 penetrating through the detection protection box 101, the outer walls of the two sprockets 502 are transmission connected through a chain 503, a recess 105 is arranged at the middle position of the bottom of the detection protection box 101, and the two sprockets 502 and the chain 503 are located inside the recess 105, a connecting shaft 508 is fixedly arranged at the top end of one of the stirring wheels 501, a support table 509 is fixedly arranged at one end of the inner wall of the detection protection box 101, a first bevel gear 510 is rotationally arranged at the middle position of one side of the support table 509, a second bevel gear 511 is rotationally arranged at the middle position of the top of the support table 509, the tooth surface of the first bevel gear 510 is engaged with the tooth surface of the second bevel gear 511, the top end of the connecting shaft 508 is fixedly connected with the bottom end of the second bevel gear 511 penetrating through the support table 509, and a fourth motor 513 is fixedly arranged at one side of the detection protection box 101;

[0061] The bottom end of one of the stirring wheels 501 is fixedly provided with a positioning gear 504, the tooth surface of the positioning gear 504 is engaged with a positioning rack 505, one end of the positioning rack 505 is fixedly provided with a wave making plate 506, one end of the wave making plate 506 is fixedly provided with a balance frame 507, one side of the balance frame 507 is in contact with one side of the positioning gear 504, a sliding bar 106 is fixedly arranged at the bottom end of the inner wall of the detection protection box 101, and the bottom end of the wave making plate 506 is in sliding contact with the top end of the sliding bar 106;

[0062] The output end of the fourth motor 513 fixed on one side of the detection protection box 101 drives the fixed shaft 512 to rotate back and forth, so that the fixed shaft 512 drives the first bevel gear 510 to rotate, the tooth surface of the first bevel gear 510 meshes with the tooth surface of the second bevel gear 511, so that the second bevel gear 511 drives one of the stirring wheels 501 to rotate through the connecting shaft 508, the chain wheel 502 fixed at the bottom end of the stirring wheel 501 is in transmission connection with the chain 503, so that the two stirring wheels 501 rotate synchronously, so that the seawater in the detection protection box 101 rotates, the tooth surface of the positioning gear 504 fixed at the bottom end of one of the stirring wheels 501 meshes with the tooth surface of the positioning rack 505, so that the wave board 506 fixed at one end of the positioning rack 505 slides back and forth along the sliding bar 106 opened at the bottom end of the detection protection box 101, the balance frame 507 fixed at one end of the wave board 506 is in contact with one side of the positioning gear 504, so that the wave board 506 drives the seawater in the detection protection box 101 to reciprocate and surge, so that half the length of the anchor chain 2 is soaked in the seawater in this environment for a certain period of time.

[0063] As a specific embodiment of the present application, the detection protection box 101 is fixed on one side of the intelligent control panel, the first motor 110, the second motor 305, the third motor 405, the fourth motor 513, the drive motor 309 and the hydraulic cylinder 113 are all electrically connected with the external power supply through the intelligent control panel.

[0064] As a specific embodiment of the present application, a method for detecting the tension of an anchor chain is provided, and the method comprises the following steps:

[0065] Step one, after the end of the anchor chain 2 is pulled out a certain distance and positioned on one end of the lifting seat 112, the output end of the drive motor 309 fixed on one end of the support frame 306 drives the anchor winding frame 307 to rotate, so that the length of the anchor chain 2 is controlled, the other force end of the anchor chain 2 is placed on the top end of the rotary control frame 402 for positioning, the output end of the third motor 405 fixed on one side of the fixed seat 403 drives the adjusting lead screw 404 to rotate, so that the moving seat 406 screwed on one end of the outer wall of the adjusting lead screw 404 drives the moving frame 407 and the connecting frame 408 to move, so that the penetrating shaft 409 connected on one side of the connecting frame 408 penetrates through the hole diameter of the anchor chain 2, and the two ends of the penetrating shaft 409 are extruded and assisted by the supporting seat 410, thereby completing the preparation work for detecting the tension of the anchor chain 2;

[0066] Step two, seawater is poured into the detection protection box 101, the height of the seawater is flush with the height of the support table 509, the electrode sheet 111 is electrified by the external power supply, and electrolysis reaction is carried out;

[0067] Step three, through the output end of the first motor 110 fixed on the top of the sliding frame 107 to drive the positioning lead screw 108 to rotate, so that the lifting seat 112 threaded on the outer wall of the positioning lead screw 108 drives the end of the anchor chain 2 to lift to the corresponding position through the sliding groove 109, so that the anchor chain 2 to be detected tends to be in a state of being about to be tightened.

[0068] Step four, through the output end of the fourth motor 513 fixed on one side of the detection protection box 101 to drive the fixed shaft 512 to reciprocating rotate, so that the fixed shaft 512 drives the first bevel gear 510 to rotate, through the meshing of the tooth surface of the first bevel gear 510 and the tooth surface of the second bevel gear 511, so that the second bevel gear 511 drives one of the stirring wheels 501 through the connecting shaft 508, through the transmission connection of the sprocket 502 and the chain 503 fixed on the bottom end of the stirring wheel 501, so that the two stirring wheels 501 rotate synchronously, so that the seawater in the detection protection box 101 rotates, through the meshing of the tooth surface of the positioning gear 504 fixed on the bottom end of one of the stirring wheels 501 and the tooth surface of the positioning rack 505, so that the wave board 506 fixed on one end of the positioning rack 505 reciprocating slides along the sliding bar 106 opened at the bottom end of the detection protection box 101, so that the wave board 506 drives the seawater in the detection protection box 101 to reciprocating surge and make waves, so that half the length of the anchor chain 2 is soaked in the seawater in this environment for a certain period of time.

[0069] Step five, at the same time, through the output end of the second motor 305 fixed in the fixed frame 304 to drive the fixed lead screw 302 to rotate, so that the tension control frame 301 threaded on the outer wall of the fixed lead screw 302 moves, so that the tension control frame 301 slides along the top end of the tension control frame 114, and drives the anchor chain 2 to be tensioned, so that the anchor chain 2 is in an environment with changing tension for a certain period of time.

[0070] Step six, through the high-pressure tension of the hydraulic cylinder 113 fixed at the top of the detection protection box 101 to pull the anchor chain 2 to be detected, so that the output end of the hydraulic cylinder 113 drives the tension control frame 114 to move, through the sliding of the limiting strip 116 fixed on both ends of the tension control frame 114 and the limiting groove 104 opened on both sides of the detection protection box 101, the tension is kept stable, so that the anchor chain 2 is pulled until it breaks, the stress value of the anchor chain 2 is obtained, the breaking position of the anchor chain 2 is observed, and the stress of the anchor chain 2 in the air reference state, seawater corrosion state and mixed load state is judged.

[0071] As shown in Figure 2 , it is the state of tension test of the anchor chain 2 in the completely air reference state.

[0072] Although the present application has been described in detail with reference to the foregoing embodiments, it should be understood that modifications can be made to the foregoing embodiments, or additional implementations can be implemented, without departing from the spirit and scope of the inventive subject matter. Accordingly, the present application is not limited to the implementations described herein, but is intended to be defined by the claims set forth below, and equivalents thereof.

Claims

1. An anchor chain fixed section tension detection device, comprising a tension detection mechanism (1), characterized in that: The top end of the tension detection mechanism (1) is connected to a tension control mechanism (3), and one end of the top end of the tension control mechanism (3) is connected to an anchor chain segment control mechanism (4), wherein: The tension detection mechanism (1) includes a detection protection box (101), a positioning groove (102) is provided at one end of the top of the detection protection box (101), a hydraulic cylinder (113) is fixedly provided on the inner wall of the positioning groove (102), a tension control frame (114) is fixedly provided at the output end of the hydraulic cylinder (113), both sides of the tension control frame (114) are fixedly provided with limiting strips (116), one end of both sides of the detection protection box (101) is provided with limiting grooves (104), and the tension control frame (114) is slidably connected to the limiting grooves (104) through the limiting strips (116); A sliding frame (107) is fixedly provided on the other side of the detection protection box (101), a sliding groove (109) is opened on one side of the sliding frame (107), a positioning screw (108) is rotatably provided at the middle position of the sliding frame (107), a lifting seat (112) is threadedly provided on the outer wall of the positioning screw (108), one end of the lifting seat (112) is connected to the anchor chain (2), a first motor (110) is fixedly provided at the top end of the sliding frame (107), and an output end of the first motor (110) is fixedly connected to the top end of the positioning screw (108); Electrode sheets (111) are fixedly provided at both ends of the bottom of the inner wall of the detection protection box (101).

2. The anchor chain fixed segment tension detection device according to claim 1, characterized in that: Balance rods (115) are fixedly provided at both ends of one side of the tension control frame (114), and balance grooves (103) are provided at both ends of the top of one side of the detection protection box (101), and one end of the outer wall of the two balance rods (115) is slidably connected to the inner wall of the two balance grooves (103) respectively.

3. The anchor chain fixed segment tension detection device according to claim 1, characterized in that: The tension control mechanism (3) includes a tension control frame (301), a fixed screw rod (302) is rotatably provided at the middle position of the tension control frame (114), one end of the outer wall of the fixed screw rod (302) is threadedly connected to the middle position of the tension control frame (301), a fixed frame (304) is fixedly provided at one end of the tension control frame (114), a second motor (305) is fixedly provided at the middle position of the fixed frame (304), an output end of the second motor (305) is fixedly connected to one end of the fixed screw rod (302), and movable grooves (303) are provided on both sides of the top of the tension control frame (114), and the two ends of the tension control frame (301) are slidably connected to the top of the tension control frame (114) through the movable grooves (303).

4. The anchor chain fixed segment tension detection device according to claim 3, characterized in that: The tension control mechanism (3) further comprises a support frame (306) fixed to one end of the top of the tension control frame (301); an anchor chain reeling frame (307) is rotatably provided at the top of the support frame (306); protective rings (308) are fixedly provided at both ends of the outer wall of the anchor chain reeling frame (307); a driving motor (309) is fixedly provided at one end of the support frame (306); an output end of the driving motor (309) is fixedly connected to one end of the anchor chain reeling frame (307); and the other end of the anchor chain (2) is reeled through the anchor chain reeling frame (307).

5. The anchor chain fixed segment tension detection device according to claim 4, characterized in that: The anchor chain segment control mechanism (4) comprises a positioning seat (401) fixed at the other end of the top of the tension control frame (301), a rotation control frame (402) is rotatably provided at the middle position of the positioning seat (401), a fixed seat (403) is fixed at one end of the bottom of the rotation control frame (402), an adjusting screw rod (404) is rotatably provided at the middle position of the fixed seat (403), a movable seat (406) is threadedly provided at one end of the outer wall of the adjusting screw rod (404), and the movable seat (406) is rotatably provided at one end of the outer wall of the movable seat (40 6) A movable frame (407) is fixedly provided at one end of the top, a through slot (411) is provided at one end of the rotation control frame (402), a connecting frame (408) is fixedly provided at one end of the movable frame (407) through the through slot (411), three interlaced shafts (409) are fixedly provided at one end of the connecting frame (408), a third motor (405) is fixedly provided at one side of the fixed seat (403), and an output end of the third motor (405) is fixedly connected to one end of the adjusting screw rod (404).

6. The anchor chain fixed segment tension detection device according to claim 5, characterized in that: Three support seats (410) are fixedly provided at both ends of the top of the rotation control frame (402), and the two ends of the three interpenetrating shafts (409) correspond to the positions of the six support seats (410) respectively.

7. The anchor chain fixed segment tension detection device according to claim 5, characterized in that: The bottom end of the inner wall of the detection protection box (101) is connected to a bionic mechanism (5), and the bionic mechanism (5) includes stirring wheels (501) rotating at both ends of the bottom of the inner wall of the detection protection box (101), the bottom ends of the two stirring wheels (501) are both passed through the detection protection box (101) and fixed with sprockets (502), the outer walls of the two sprockets (502) are connected by a chain (503), a groove (105) is opened in the middle position of the bottom of the detection protection box (101), the two sprockets (502) and the chain (503) are both located inside the groove (105), a connecting shaft (508) is fixed on the top end of one of the stirring wheels (501), and one end of the inner wall of the detection protection box (101) is fixed. A support platform (509) is provided, a first bevel gear (510) is rotatably provided at the middle position of one side of the support platform (509), a second bevel gear (511) is rotatably provided at the middle position of the top of the support platform (509), the tooth surface of the first bevel gear (510) is meshed with the tooth surface of the second bevel gear (511), the top end of the connecting shaft (508) passes through the support platform (509) and is fixedly connected to the bottom end of the second bevel gear (511), a fourth motor (513) is fixedly provided at one side of the detection protection box (101), an output end of the fourth motor (513) is fixedly provided with a fixed shaft (512), one end of the fixed shaft (512) passes through the support platform (509) and is fixedly connected to one end of the first bevel gear (510).

8. The anchor chain fixed segment tension detection device according to claim 7, characterized in that: A positioning gear (504) is fixedly provided at the bottom end of one of the stirring wheels (501), a positioning rack (505) is meshed with the tooth surface of the positioning gear (504), a wave-making plate (506) is fixedly provided at one end of the positioning rack (505), a balance frame (507) is fixedly provided at one end of the wave-making plate (506), one side of the balance frame (507) is in contact with one side of the positioning gear (504), a sliding bar (106) is fixedly provided at the bottom end of the inner wall of the detection protection box (101), and the bottom end of the wave-making plate (506) is in sliding contact with the top end of the sliding bar (106).

9. The anchor chain fixed segment tension detection device according to claim 7, characterized in that: An intelligent control panel is fixedly provided on one side of the detection protection box (101), and the first motor (110), the second motor (305), the third motor (405), the fourth motor (513), the drive motor (309) and the hydraulic cylinder (113) are all electrically connected to an external power supply via the intelligent control panel.

10. A method for detecting the tension of a fixed segment of an anchor chain, characterized in that: The method is as follows: Step 1: Pull the end of the anchor chain (2) out to a certain distance and then position it on one end of the lifting seat (112). The output end of the driving motor (309) fixed to one end of the support frame (306) drives the anchor chain winding frame (307) to rotate, so that the length of the anchor chain (2) is controlled. The other force-bearing end of the anchor chain (2) is placed on the top of the rotation control frame (402) for positioning. The output end of the third motor (405) fixed to one side of the fixed seat (403) drives the anchor chain winding frame (307) to rotate, so that the length of the anchor chain (2) is controlled. The outlet end drives the adjusting screw (404) to rotate, so that the movable seat (406) threadedly connected to one end of the outer wall of the adjusting screw (404) drives the movable frame (407) and the connecting frame (408) to move, so that the insertion shaft (409) connected to one side of the connecting frame (408) passes through the aperture of the anchor chain (2), and at the same time, the two ends of the insertion shaft (409) are squeezed with the support seat (410) to assist in receiving force, thereby completing the preparation work for the tension test of the anchor chain (2); Step 2: Fill the detection protection box (101) with seawater until the height of the seawater is flush with the height of the support platform (509), and energize the electrode sheet (111) through an external power supply device to perform an electrolytic reaction; Step 3: The output end of the first motor (110) fixed to the top of the sliding frame (107) drives the positioning screw (108) to rotate, so that the lifting seat (112) threadedly connected to the outer wall of the positioning screw (108) passes through the sliding groove (109) to drive the fixed end of the anchor chain (2) to rise and fall to the corresponding position, so that the anchor chain (2) section to be tested tends to be in a state of being about to be tightened; Step 4: The output end of the fourth motor (513) fixed on one side of the detection protection box (101) drives the fixed shaft (512) to rotate back and forth, so that the fixed shaft (512) drives the first bevel gear (510) to rotate, and the tooth surface of the first bevel gear (510) is engaged with the tooth surface of the second bevel gear (511), so that the second bevel gear (511) drives one of the stirring wheels (501) to rotate through the connecting shaft (508), and the sprocket (502) fixed at the bottom end of the stirring wheel (501) is connected to the chain (503) for transmission, so that the two stirring wheels (501) are connected. 1) rotating synchronously, so that the seawater inside the detection and protection box (101) rotates, and the tooth surface of the positioning gear (504) fixed at the bottom end of one of the stirring wheels (501) engages with the tooth surface of the positioning rack (505), so that the wave-making plate (506) fixed at one end of the positioning rack (505) slides back and forth along the sliding bar (106) opened at the bottom end of the detection and protection box (101), so that the wave-making plate (506) drives the seawater inside the detection and protection box (101) to surge and create waves, so that half the length of the anchor chain (2) is immersed in the seawater of this environment for a certain period of time; Step 5. At the same time, the output end of the second motor (305) fixed inside the fixed frame (304) drives the fixed screw (302) to rotate, so that the tension control frame (301) threadedly connected to the outer wall of the fixed screw (302) moves, so that the tension control frame (301) slides along the top of the tension control frame (114) and drives the anchor chain (2) to be tensioned, so that the anchor chain (2) is in an environment where the tension is constantly changing for a certain period of time; Step 6: Pull the anchor chain (2) to be tested under the high-pressure tension of the hydraulic cylinder (113) fixed on the top of the detection protection box (101), so that the output end of the hydraulic cylinder (113) drives the tension control frame (114) to move, and the limit bars (116) fixed on both ends of the tension control frame (114) slide with the limit grooves (104) opened on both sides of the detection protection box (101) to maintain the tension stable, so that the anchor chain (2) is pulled until it breaks, and the force value of the anchor chain (2) is obtained. The fracture position of the anchor chain (2) is observed, and the force conditions of the anchor chain (2) under the air reference state, seawater corrosion state and blended load state are judged.

Images