A wire rope diameter measuring device and a measuring method thereof

Abstract

The present invention relates to the technical field of detection equipment, and in particular to a wire rope diameter measuring device and a measuring method thereof, comprising: a measuring component, the measuring component comprising a first base and a plurality of measuring modules; the first base is provided with a plurality of accommodating cavities for installing the measuring modules. The measuring component and the sensing component of the present invention both adopt a split-and-combined base design, which connects the two first bases together through a partition plate with an inclined surface, effectively avoiding the problem of spatial interference between the wire rope and the base. In addition, the measuring component is also provided with a measuring module equipped with a roller, which can accurately sense the position change of the roller caused by the change of the wire rope diameter based on capacitance or electromagnetic principles, thereby realizing accurate measurement of whether the wire rope diameter is compliant.

Description

Technical Field

[0001] The present invention relates to the technical field of detection equipment, and in particular to a wire rope diameter measuring device and a measuring method thereof. Background Art

[0002] Wire ropes are the core power transmission components of many key equipment, such as cranes, elevators and amusement facilities. Their performance and status are directly related to the safety and efficiency of the equipment. In order to ensure that the wire ropes in these equipment always maintain the best working condition, it is very important to conduct comprehensive inspections of the wire ropes regularly. The inspection content mainly includes checking whether the wire ropes have broken strands and whether the diameter changes beyond the safe range, so as to timely determine whether they need to be replaced.

[0003] However, most of the existing wire rope inspection equipment is limited to working in a stationary state and relies on manual operation, such as visual inspection, magnifying glass-assisted observation, or measurement using tools such as vernier calipers. This traditional manual inspection method has obvious limitations: on the one hand, since the working stroke of the wire rope is relatively long in actual use, and the diameter changes in different parts may not be uniform, the traditional point measurement method is difficult to achieve accurate measurement of the entire wire rope; on the other hand, manual operation is not only labor-intensive, but also prone to measurement errors due to human factors, affecting the accuracy of the test results. Therefore, there is an urgent need for a new wire rope diameter measurement device that can perform accurate and efficient online measurements directly on the equipment throughout the entire process, and can detect other defects such as broken strands in the wire rope. Summary of the invention

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a wire rope diameter measuring device, wherein both the measuring component and the sensing component adopt a split-and-combined base design, which connects the two first bases together through a partition plate with an inclined surface, effectively avoiding the spatial interference problem between the wire rope and the base. In addition, the measuring component is also provided with a measuring module equipped with a roller, which can accurately sense the position change of the roller caused by the change of the wire rope diameter based on the capacitance or electromagnetic principle, thereby realizing accurate measurement of whether the wire rope diameter is compliant.

[0005] The objective of the present invention is achieved through the following technical solutions:

[0006] A wire rope diameter measuring device comprises: a measuring assembly, wherein the measuring assembly comprises a first base and a plurality of measuring modules;

[0007] The first base is provided with a plurality of accommodating cavities for installing measurement modules;

[0008] The measuring module comprises:

[0009] A first roller and a second roller, the first roller and the second roller are arranged opposite to each other and maintain a gap, the axial direction of the first roller and the second roller is perpendicular to the length direction of the wire rope, the wire rope passes through the gap between the first roller and the second roller and contacts the arc surface of the first roller and the second roller;

[0010] A displacement member connected to and supporting the first roller in the accommodating cavity, wherein the displacement member can generate displacement in response to a change in the diameter of the steel wire rope when a voltage is applied, and an electric signal change is generated;

[0011] A signal acquisition unit, used for collecting electrical signals from the displacement element;

[0012] A rope splitter is arranged on the first base and is used to increase the center distance between adjacent steel wire ropes. The steel wire ropes enter the accommodating cavity after passing through the rope splitter;

[0013] The control device is electrically connected to the signal acquisition unit, and the control device is used to process and analyze the electrical signal collected by the signal acquisition unit.

[0014] Furthermore, the first base is a split structure, including a first connecting part and a second connecting part, the first connecting part is provided with a first partition plate with an inclined surface, the second connecting part is provided with a second partition plate adapted to the first partition plate, and the first partition plate and the second partition plate are slidably connected.

[0015] Furthermore, the displacement member includes a sliding sleeve and a sliding rod slidably arranged in the sliding sleeve, the sliding sleeve is connected to the first connecting part, a conductive element is provided between the sliding sleeve and the sliding rod, the first end of the sliding rod extends to the outside of the sliding sleeve and is connected to the first roller, and a spring is provided between the second end of the sliding rod and the inner bottom of the sliding sleeve.

[0016] Furthermore, it also includes an adjusting screw, which is threadedly connected to the sliding sleeve, and the end of the adjusting screw extends into the sliding sleeve and presses against the end of the spring.

[0017] Furthermore, the rope splitter comprises a rope splitting base and a rope splitting plate, the rope splitting plate is in an eight-shaped structure, and the rope splitting plate is arranged on the rope splitting base.

[0018] Furthermore, it also includes a sensing component, which is arranged on the upper side of the measuring component;

[0019] The sensing assembly includes a second base and a sensing module, the second base is a split structure, including a third connecting portion and a fourth connecting portion, a plurality of mounting grooves are formed between the third connecting portion and the fourth connecting portion, a third partition plate with an inclined surface is provided on the third connecting portion, a fourth partition plate adapted to the third partition plate is provided on the fourth connecting portion, and the third partition plate and the fourth partition plate are slidably connected;

[0020] The sensing module is arranged in the installation groove, the steel wire rope passes through the sensing module, and the sensing module is used to obtain a piezoelectric signal when the steel wire rope with broken wire presses on the sensing module.

[0021] Furthermore, the sensing module includes a sensing element and a conducting element, the sensing element is made of a piezoelectric dry hard material, and the conducting element is arranged inside the sensing element.

[0022] Furthermore, a horizontal plate is provided on the first connecting portion, a step hole is provided on the horizontal plate, and a fixing piece is installed in the step hole.

[0023] Furthermore, the sensing component is detachably connected to the measuring component, and the rope splitter is detachably connected to the sensing component.

[0024] A measuring method based on a wire rope diameter measuring device comprises the following steps:

[0025] S10, assembly: complete the assembly of the measuring component and the sensing component and make the steel wire rope to be tested pass through the sensing component and the measuring component after passing through the rope splitter;

[0026] S20, calibration: adjusting the measuring module so that the position of the first roller is the position of the diameter of the wire rope when it leaves the factory. At this time, the position of the first roller is the standard wire rope position, and the signal acquired by the signal acquisition unit is the first signal;

[0027] S30, measurement: connecting the signal line of the measuring device to the control system of the driving source of the steel wire rope to be detected, and setting the movement speed of the driving source of the steel wire rope to be detected to 0.2m / s-0.5m / s, at which time the signal acquired by the signal acquisition unit is the second signal;

[0028] S40, data processing: the control device compares the first signal with the second signal, and if the difference between the two is greater than 10%, an abnormal signal representing an abnormal change in the diameter of the wire rope is output.

[0029] The beneficial effects of the present invention are:

[0030] 1) The measuring component and the sensing component of the present invention both adopt a split-and-joint base design, which connects the two first bases together through a partition plate with an inclined surface, effectively avoiding the spatial interference problem between the wire rope and the base. In addition, the measuring component is also provided with a measuring module equipped with a roller, which can accurately sense the position change of the roller caused by the change of the wire rope diameter based on capacitance or electromagnetic principles, thereby realizing accurate measurement of whether the wire rope diameter is compliant.

[0031] 2) The measuring device of the present invention integrates the broken strand detection function by setting up a sensing component. A sensing component is set above the measuring component, and its second base structure is similar to the first base. The second base is connected to form a mounting groove for mounting the sensing module. The sensing module works based on the piezoelectric principle. Once the broken wire rope presses the conductive part, the sensing module immediately receives the piezoelectric signal and immediately indicates that the wire rope has broken strands.

[0032] 3) In order to solve the problem of measuring multiple closely arranged steel wire ropes, the present invention also adds a rope splitter above the sensing component; such a setting can significantly increase the center distance between the steel wire ropes, ensuring that they are adapted to the internal space of the sensing component and the measuring component, making the measurement of broken wires and diameters more convenient and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 The three-dimensional measuring device of the present invention Figure 1 ;

[0034] Figure 2 The three-dimensional measuring device of the present invention Figure 2 ;

[0035] Figure 3 is a side view of the measuring device of the present invention;

[0036] Figure 4 A top view of the measuring device of the present invention;

[0037] Figure 5 A schematic diagram of the installation process of the measuring assembly of the present invention;

[0038] Figure 6 A top view of a measuring module of a measuring assembly of the present invention;

[0039] Figure 7 A partial perspective view of a measuring module of a measuring assembly of the present invention;

[0040] Figure 8 is a cross-sectional view of a measurement module of a measurement assembly of the present invention;

[0041] Fig. 9 The first connection part of the measuring assembly of the present invention is a three-dimensional Figure 1 ;

[0042] Fig.10 The first connection part of the measuring assembly of the present invention is a three-dimensional Figure 2 ;

[0043] Fig.11 is a cross-sectional view of a first connecting portion of a measuring assembly of the present invention;

[0044] Fig.12A three-dimensional diagram of a second connecting portion of a measuring assembly of the present invention;

[0045] Fig.13 A schematic diagram of the installation process of the sensing component of the present invention;

[0046] Fig.14 A schematic diagram of a state in which the sensing component of the present invention is installed on the measuring component;

[0047] Fig.15 This is a schematic diagram of the state where the sensing component is installed on the measuring component after the sensing module and the wire rope are hidden in the present invention;

[0048] Fig.16 is a three-dimensional diagram of the sensing module of the present invention;

[0049] Fig.17 is a three-dimensional diagram of the third connecting portion of the sensing component of the present invention;

[0050] Fig.18 is a three-dimensional diagram of a fourth connecting portion of the sensing assembly of the present invention;

[0051] Fig.19 A perspective view of a rope splitter according to the present invention;

[0052] Fig. 20 It is a schematic diagram of the overall structure of the fixing member of the present invention.

[0053] In the figure: 1. measuring component; 2. first base; 3. measuring module; 4. accommodating chamber; 5. first roller; 6. second roller; 7. wire rope; 8. displacement member; 9. rope splitter; 10. first connecting part; 11. second connecting part; 12. sliding sleeve; 13. sliding rod; 14. spring; 15. adjusting screw; 16. rope splitting base; 17. rope splitting plate; 18. sensing component; 19. second base; 20. sensing module; 21. third connecting part; 22. fourth connecting part; 23. sensing member; 24. conducting member; 25. first partition plate; 26. second partition plate; 27. third partition plate; 28. fourth partition plate; 29. ​​horizontal plate; 30. fixing member; 31. supporting plate; 32. mounting groove; 33. first locking member; 34. second locking member. DETAILED DESCRIPTION

[0054] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0055] See also Figure 1-Figure 20 , the present invention provides a technical solution:

[0056] Embodiment 1:

[0057] like Figure 1-Figure 20 As shown, a wire rope diameter measuring device comprises: a measuring assembly 1, wherein the measuring assembly 1 comprises a first base 2 and a plurality of measuring modules 3;

[0058] The first base 2 has a plurality of accommodating cavities 4 for installing the measuring modules 3 disposed therein;

[0059] The measuring module 3 comprises:

[0060] like Figure 1-Figure 8 As shown, the first roller 5 and the second roller 6 are arranged opposite to each other and maintain a gap. The axial direction of the first roller 5 and the second roller 6 is perpendicular to the length direction of the wire rope 7. The wire rope 7 passes through the gap between the first roller 5 and the second roller 6 and contacts the arc surface of the first roller 5 and the second roller 6. Preferably, the surfaces of the first roller 5 and the second roller 6 have a wear-resistant coating.

[0061] A displacement member 8, connected to and supporting the first roller 5 in the accommodating cavity 4, wherein the displacement member 8 can generate displacement in response to a change in the diameter of the steel wire rope 7 when a voltage is applied, and generate an electric signal change;

[0062] A signal acquisition unit, used to collect the electrical signal from the displacement member 8;

[0063] A rope splitter 9 is provided on the first base 2 and is used to increase the center distance between adjacent steel wire ropes 7 so as to facilitate individual measurement. The steel wire ropes 7 enter the accommodating cavity 4 after passing through the rope splitter 9;

[0064] The control device is electrically connected to the signal acquisition unit, and the control device is used to process and analyze the electrical signal collected by the signal acquisition unit. The control device has a storage module, a communication module, a power module, an input and output interface, etc. The control device can be connected to a device equipped with a wire rope, thereby playing the role of a linkage control device.

[0065] like Figure 1-Figure 13As shown, the first base 2 is a split structure, including a first connection part 10 and a second connection part 11, the first connection part 10 is provided with a plurality of first partition plates 25 with inclined surfaces, wherein the inclined surfaces are at an angle to the length direction of the steel wire rope 7, the second connection part 11 is provided with a plurality of first partition plates 25 adapted to the first partition plates 25, and the adaptation here means that the second partition plate 26 and the first partition plate 25 are centrally symmetrical structures, the inclined surfaces of the two are fitted, that is, the inclined surfaces on the first connection part 10 and the inclined surfaces on the second connection part 11 are at complementary angles, and the first partition plate 25 and the second partition plate 26 are slidably connected. Among them, 1. A T-shaped or dovetail guide groove is provided on the inclined surface of the first partition plate 25, wherein a horizontal supporting plate 31 is provided at the bottom of the guide groove to ensure that the bottoms of the first connection part 10 and the second connection part 11 are on the same horizontal plane when the first connection part 10 and the second connection part 11 are connected, and a guide rail adapted to the guide groove is provided on the inclined surface of the second partition plate 26, and the first partition plate 25 and the second partition plate 26 are slidably matched through the guide groove and the guide rail. 2. The first roller 5 is connected to the first connecting portion 10 through the displacement member 8, and the second roller 6 is connected to the second connecting portion 11. An accommodating cavity 4 is formed between the first partition plate 25 and the second partition plate 26.

[0066] The purpose of setting the guide groove and the guide rail is that: since the steel wire rope 7 is installed on the corresponding equipment, it cannot be disassembled. If no inclined surface is set, but two vertical planes are directly combined, then during the combination process, due to the existence of the steel wire rope 7 and the first connecting part 10 that has been installed, when the second connecting part 11 is installed, the second roller 6 approaches the first roller 5, which will squeeze the steel wire rope 7, thereby increasing the combination resistance of the two bases. At the same time, the first connecting part 10 that has been installed will interfere with the operator's operation and make it inconvenient to operate. When inclined surfaces are set on the two first connecting parts 10 and the second connecting part 11, such as Figure 5 As shown, the lower end of the second connecting portion 11 first contacts the upper end surface of the first connecting portion 10. At this time, there is a large space for the docking operation without interference from the installed components.

[0067] like Figure 1 As shown, the first connecting part 10 includes a horizontal plate and a vertical plate, the first partition plate 25 is fixedly arranged on the vertical plate, and a plurality of step holes are arranged on the horizontal plate, and the step holes are used to accommodate the fixing member 30. One end of the fixing member 30 is inserted into the step hole and connected to the equipment to be measured, so as to fix the measuring device.

[0068] like Figure 6-Figure 8As shown, the displacement member 8 includes a sleeve 12 and a slide bar 13 slidably arranged in the sleeve 12, wherein 1. the bases of the sleeve 12 and the slide bar 13 are both made of ceramic material 2. in this embodiment, the cross section of the sleeve 12 is a rectangular structure, and in this embodiment, the conductive element is an electrode plate installed on at least one surface of the sleeve 12 and the slide bar 13, and the sleeve 12 and the slide bar 13 form a capacitor structure after being energized. The sleeve 12 is connected to the first connecting portion 10, the first end of the slide bar 13 extends to the outside of the sleeve 12 and is connected to the first roller 5, and a spring 14 is arranged between the second end of the slide bar 13 and the inner bottom of the sleeve 12. A roller frame is arranged between the first roller 5 and the displacement member 8, wherein the slide bar 13 is connected to the roller frame, and the first roller 5 is rotatably arranged on the roller frame. The second roller 6 is directly connected to the second connecting portion 11 through the roller frame. The steel wire rope 7 contacts the first roller 5 to drive the slide bar 13 to move relative to the sleeve 12, and the change in the diameter of the steel wire rope 7 is detected by the change in the capacitance.

[0069] In another preferred embodiment, the conductive element is a metal coil with resistance disposed in the slide bar 13 and a contact point in contact with the metal coil disposed on the slide sleeve 12. After the steel wire rope 7 contacts the first roller, the slide bar 13 is driven to move relative to the slide sleeve 12, and the diameter change of the steel wire rope 7 is detected by the change in resistance.

[0070] Furthermore, when the standard diameters of the steel wire rope 7 to be measured are different, first rollers 5 and second rollers 6 of different sizes may be selected to cooperate with the steel wire rope 7, thereby improving the applicability of the measuring device.

[0071] It also includes an adjusting screw 15, which is threadedly connected to the sleeve 12, and the end of the adjusting screw 15 extends into the sleeve 12 and presses against the end of the spring 14. A horizontal hole is provided on the vertical plate of the first connecting part 10, and the horizontal hole has a rectangular section. The sleeve is arranged in the rectangular section of the horizontal hole. One end of the adjusting screw 15 extends from the horizontal hole to the outside of the first connecting part 10 to facilitate the operator to rotate the adjusting screw 15. The vertical plate is provided with a scale in the axial direction of the horizontal hole.

[0072] The purpose of setting the adjusting screw 15 is mainly to adjust the initial contact position between the first roller 5 and the wire rope, to ensure that the first roller 5 does not apply too much clamping force to the wire rope 7, and at the same time to ensure that the wire rope 7 drives the first roller 5 to rotate while ensuring the movement of the sliding rod 13 relative to the sliding sleeve 12.

[0073] Furthermore, if Figure 1 and Fig.19As shown, the rope splitter 9 includes a rope splitting base 16 and a rope splitting plate 17, the rope splitting plate 17 is in an eight-shaped structure, and the rope splitting plate 17 is preferably a thin plate bent toward the side of the rope splitting base 16, and the rope splitting plate 17 is arranged on the rope splitting base 16. Among them, a slider is arranged on the rope splitting base 16, and a sliding groove is arranged on the second base 19 described below, and the rope splitting base 16 is detachably connected to the second base 19 through the slider and the sliding groove.

[0074] like Figure 1 , Figure 14-18 As shown, it also includes a sensing component 18, and the sensing component 18 is arranged on the upper side of the measuring component 1;

[0075] The sensing component 18 includes a second base 19 and a sensing module 20, the second base 19 is a split structure, including a third connecting part 21 and a fourth connecting part 22, a plurality of mounting grooves 32 are formed between the third connecting part 21 and the fourth connecting part 22, wherein the mounting grooves 32 are connected to the accommodating chamber 4, the third connecting part 21 is provided with a third partition plate 27 having an inclined surface, wherein the inclined surface is angled with the length direction of the wire rope 7, the fourth connecting part 22 is provided with a third partition plate 27 adapted to the third partition plate 27, the adaptation here means that the fourth partition plate 28 and the third partition plate 27 are centrally symmetrical structures, the inclined surfaces of the two are fitted, that is, the inclined surface on the third connecting part 21 and the inclined surface on the fourth connecting part 22 are in a complementary relationship with the fourth partition plate 28, the inclined surface of the third partition plate 27 is provided with a guide groove, the inclined surface of the fourth partition plate 28 is provided with a guide rail, the third connecting part 21 and the fourth connecting part 22 are slidably connected through the guide groove and the guide rail.

[0076] The sensing module 20 is disposed in the mounting slot 32 and connected to the control device. The steel wire rope 7 passes through the sensing module 20. When the steel wire rope 7 with broken wires presses on the sensing module 20, the sensing module 20 obtains a piezoelectric signal, that is, it is used to sense whether the steel wire rope 7 has broken wires.

[0077] The sensing module 20 includes a sensing member 23 and a conducting member 24 . The sensing member 23 is made of a piezoelectric hard material. The conducting member 24 is disposed inside the sensing member 23 . A through hole matching the steel wire rope 7 is disposed on the conducting member 24 .

[0078] The induction element 23 is connected to the control device via a wire, and the conductive element 24 is preferably made of ceramic material.

[0079] Among them, 1. The induction member 23 is composed of two symmetrical U-shaped structures, and a first flange is provided on the upper part of the induction member 23, and the first flange is arranged in the installation groove 32; after the two U-shaped structures are connected, a rectangular opening is formed in the middle. The conductive member 24 is arranged in the rectangular opening, and the conductive member 24 is composed of two symmetrical bases, and a circular hole for the steel wire rope 7 to pass through is formed between the two bases. The conductive member 24 is provided with a second flange whose size is larger than the rectangular opening, and the conductive member 24 is connected to the induction member 23 through the second flange and the rectangular opening.

[0080] 2. The splicing direction of the induction member 23 is perpendicular to the splicing direction of the conductive member 24, that is, the joint seam after the two U-shaped structures are spliced ​​is perpendicular to the joint seam after the two conductive members 24 are spliced, so that the joint seams of the two components do not overlap in the vertical direction, avoiding a larger gap between the two conductive members 24 after they are installed in the two U-shaped structures, so that the thinner broken wires in the wire rope 7 will not directly enter the gap and damage the lower induction member 23. The diameter of the circular hole is 5mm-10mm larger than the diameter of the wire rope 7 to be tested.

[0081] 3. A docking portion is provided on the vertical plate of the first connecting portion 10, and the docking portion is preferably a slide rail and a slide groove arranged on two components, and a baffle is provided at the movement end of the slide groove to limit the movement stroke of the slide rail. The first connecting portion 10 is connected to the third connecting portion 21 through the docking portion.

[0082] Furthermore, a horizontal plate 29 is provided on the first connecting portion 10, and a step hole is provided on the horizontal plate 29. A fixing member 30 is installed in the step hole, wherein the fixing member 30 has a magnetic column at one end and a pull ring at the other end. Fig. 20 As shown, in one way, one end of the fixing member 30 has a magnetic column and the other end has a pull ring. The magnetic column is inserted into the step hole on the horizontal plate of the first connecting part 10 and then connected to the iron component of the device carrying the wire rope 7 to be measured, thereby fixing the entire measuring device; in another way, one end of the fixing member 30 is a threaded part. When installing the measuring device, first drill several threaded holes on the device carrying the wire rope 7 to be measured, and fix the measuring device by threaded connection.

[0083] Among them, Fig.15 As shown, the first base 2 is rotatably connected with a first locking member 33 via a connecting shaft, and the second base 19 is rotatably connected with a second locking member 34 via a connecting shaft. Rotating the first locking member 33 can limit the second base 19 to prevent the second base 19 from moving laterally away from the first base 2. Rotating the second locking member 34 can limit the rope splitter to prevent the rope splitter from moving laterally away from the second base 19.

[0084] Working principle:

[0085] (1) Device assembly: First, the first connection part 10, the second connection part 11, the third connection part 21 and the fourth connection part 22 are all disassembled, and then the wire rope 7 passes through the rope splitter 9. When the wire rope 7 passes through the rope splitting plate, the center distance of multiple closely arranged wire ropes 7 increases, and then the sensing component 18 is assembled: First, the conductive part 24 and the inductive part 23 are spliced ​​in sequence, and the conductive part 24 is located inside the inductive part 23. After the two are spliced, the third connection part 21 and the fourth connection part 22 are connected as a whole through the slide block, and the sensing module 20 is located in the installation groove 32.

[0086] Then assemble the measuring assembly 1: first, splice the first connecting part 10 and the second connecting part 11 into one piece, and at the same time, make the first connecting part 10 and the third connecting part 21 match through the slide groove and the slider. This step is to connect the first base 2 and the second base 19 into one piece. When the first connecting part 10 and the second connecting part 11 are spliced, the wire rope 7 is located in the accommodating cavity 4 and between the first roller 5 and the second roller 6. After the assembly is completed, rotate the first locking member and the second locking member to ensure the stability of the device during measurement.

[0087] (2) Calibration: Rotate the adjusting screw 15 to make the position of the first roller 5 equal to the diameter of the wire rope when it leaves the factory. At this time, the position of the first roller 5 is the position of the standard wire rope 7, and the signal acquired by the signal acquisition unit is the first signal (i.e., the calibration signal). The first signal corresponds to the diameter D of the standard wire rope 7.

[0088] (3) Measurement: Connect the signal line of the control device to the elevator control system, and set the movement speed of the car to 0.2m / s-0.5m / s. The purpose of setting this speed is to ensure that the vibration of the wire rope 7 is within the controllable range, and will not significantly hit the sensing module 20 or produce abnormal impact on the roller of the measuring module 3, thereby reducing the impact on the measurement accuracy. When the car is running, the wire rope 7 passes through the measuring device in turn. At this time, the signal acquisition unit obtains the wire rope 7 diameter change signal as the second signal. Among them, the second signal corresponds to the diameter D1 of the wire rope 7 to be detected.

[0089] Data analysis and processing: The control device compares the first signal with the second signal. If the absolute value of the difference between the two is greater than 10%, the absolute value of (D-D1) / D, in other words, the ratio of the difference between the first signal and the second signal to the first signal exceeds 10%. If the absolute value is greater than 10%, an abnormal signal is output. The detection personnel can determine the position of the abnormal wire rope according to the running length of the wire rope, and then an abnormal signal representing the abnormal change in the diameter of the wire rope 7 is output, indicating that the wear of the wire rope 7 exceeds the specified amount, the diameter becomes thinner, and needs to be replaced.

[0090] In the aforementioned step (3), the measurement also includes the measurement of broken strands of the steel wire rope 7: when the sensing module 20 is working: when there is a broken strand on the steel wire rope 7, the steel wire at the broken part will protrude a certain distance relative to the base surface of the steel wire rope 7, usually more than 1 cm, and when the protruding steel wire moves downward relative to the sensing module 20, the protruding steel wire will hit the surface of the conductive member 24, and the conductive member 24 will exert a force on the lower sensing member 23 made of piezoelectric material, and the sensing member 23 will release an electrical signal, indicating that the steel wire rope 7 has a broken strand; wherein, the purpose of making the diameter of the semicircular notch 5mm-10mm larger than the diameter of the steel wire rope 7 is that the steel wire rope 7 is a slender and flexible component, and has a certain small deflection along the vertical running axis during the operation relative to the sensing component. Such a setting can avoid triggering an erroneous broken wire signal due to excessive deflection of the steel wire rope 7. Preferably, when the sensing module 20 is connected to the control device, when a broken strand of the wire rope is detected, the control device can be used to control the equipment wire rope drive device to stop running, reminding the operator to check the situation of the broken wire in time and keep records.

[0091] Embodiment 2:

[0092] A measuring method based on a wire rope diameter measuring device comprises the following steps:

[0093] S10, complete the assembly of the measuring component and the sensing component and allow the steel wire rope to be tested to pass through the sensing component and the measuring component after passing through the rope splitter;

[0094] S20, calibration: adjusting the measuring module so that the position of the first roller 5 is the position of the diameter of the wire rope when it leaves the factory. At this time, the position of the first roller 5 is the position of the standard wire rope 7, and the signal obtained by the signal acquisition unit is the first signal;

[0095] S30, measurement: connecting the signal line of the measuring device to the control system of the driving source of the steel wire rope to be detected, and setting the movement speed of the driving source of the steel wire rope to be detected to 0.2m / s-0.5m / s, at which time the signal acquired by the signal acquisition unit is the second signal;

[0096] S40, data processing: the control device compares the first signal with the second signal, and if the difference between the two is greater than 10%, an abnormal signal representing an abnormal change in the diameter of the wire rope is output.

[0097] The above is only a preferred embodiment of the present invention. It should be understood that the present invention is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art shall not deviate from the spirit and scope of the present invention, and shall be within the scope of protection of the claims attached to the present invention.

Claims

1. A wire rope diameter measuring device, characterized in that: include: A measuring assembly, the measuring assembly comprising a first base and a plurality of measuring modules; The first base is provided with a plurality of accommodating cavities for installing measurement modules; The measuring module comprises: A first roller and a second roller, the first roller and the second roller are arranged opposite to each other and maintain a gap, the axial direction of the first roller and the second roller is perpendicular to the length direction of the wire rope, the wire rope passes through the gap between the first roller and the second roller and contacts the arc surface of the first roller and the second roller; A displacement member connected to and supporting the first roller in the accommodating cavity, wherein the displacement member can generate displacement in response to a change in the diameter of the steel wire rope when a voltage is applied, and an electric signal change is generated; A signal acquisition unit, used for collecting electrical signals from the displacement element; A rope splitter is arranged on the first base and is used to increase the center distance between adjacent steel wire ropes. The steel wire ropes enter the accommodating cavity after passing through the rope splitter; A control device, the signal acquisition unit is electrically connected to the control device, and the control device is used to process and analyze the electrical signal collected by the signal acquisition unit; The first base is a split structure, including a first connecting part and a second connecting part, the first connecting part is provided with a first partition plate with an inclined surface, the inclined surface is at an angle to the length direction of the wire rope, the second connecting part is provided with a second partition plate adapted to the first partition plate, the second partition plate has an inclined surface, and the adaptation here means that the second partition plate and the first partition plate are centrally symmetrical structures, the inclined surfaces of the two are fitted, that is, the angles of the inclined surface on the first connecting part and the inclined surface on the second connecting part are complementary, and the first partition plate and the second partition plate are slidably connected; The displacement member includes a sliding sleeve and a sliding rod slidably arranged in the sliding sleeve, a conductive element is arranged between the sliding sleeve and the sliding rod, the sliding sleeve is connected to the first connecting portion, a first end of the sliding rod extends to the outside of the sliding sleeve and is connected to the first roller, and a spring is arranged between the second end of the sliding rod and the inner bottom of the sliding sleeve; It also includes a sensing component, which is arranged on the upper side of the measuring component; The sensing component includes a second base and a sensing module, the second base is a split structure, including a third connecting part and a fourth connecting part, a plurality of mounting grooves are formed between the third connecting part and the fourth connecting part, a third partition plate with an inclined surface is provided on the third connecting part, and the inclined surface is at an angle to the length direction of the wire rope, and a fourth partition plate adapted to the third partition plate is provided on the fourth connecting part, and the fourth partition plate has an inclined surface, and the adaptation here means that the fourth partition plate and the third partition plate are centrally symmetrical structures, and the inclined surfaces of the two are fitted, that is, the angles of the inclined surface on the third connecting part and the inclined surface on the fourth connecting part are complementary, and the third partition plate and the fourth partition plate are slidably connected; The sensing module is arranged in the installation groove, the steel wire rope passes through the sensing module, and the sensing module is used to obtain a piezoelectric signal when the steel wire rope with broken wire presses on the sensing module.

2. The wire rope diameter measuring device according to claim 1, characterized in that: It also includes an adjusting screw, which is threadedly connected to the sliding sleeve, and the end of the adjusting screw extends into the sliding sleeve and presses against the end of the spring.

3. The wire rope diameter measuring device according to claim 1, characterized in that: The rope splitter comprises a rope splitting base and a rope splitting plate. The rope splitting plate is in an eight-shaped structure and is arranged on the rope splitting base.

4. The wire rope diameter measuring device according to claim 1, characterized in that: The sensing module comprises a sensing element and a conducting element, wherein the sensing element is made of a piezoelectric sensing material and the conducting element is arranged inside the sensing element.

5. The wire rope diameter measuring device according to claim 1, characterized in that: A horizontal plate is disposed on the first connection portion, a step hole is disposed on the horizontal plate, and a fixing piece is installed in the step hole.

6. The wire rope diameter measuring device according to claim 1, characterized in that: The sensing component is detachably connected to the measuring component, and the rope splitter is detachably connected to the sensing component.

7. A method for measuring the diameter of a steel wire rope based on the device for measuring the diameter of a steel wire rope according to any one of claims 1, 4 to 6, characterized in that: The steps include: S10, assembly: complete the assembly of the measuring component and the sensing component and make the steel wire rope to be tested pass through the sensing component and the measuring component after passing through the rope splitter; S20, calibration: adjusting the measuring module so that the position of the first roller is the position of the diameter of the wire rope when it leaves the factory. At this time, the position of the first roller is the standard wire rope position, and the signal acquired by the signal acquisition unit is the first signal; S30, measurement: connecting the signal line of the measuring device to the control system of the driving source of the steel wire rope to be detected, and setting the movement speed of the driving source of the steel wire rope to be detected to 0.2m / s-0.5m / s, at which time the signal acquired by the signal acquisition unit is the second signal; S40, data processing: the control device compares the first signal with the second signal, and if the difference between the two is greater than 10%, an abnormal signal representing an abnormal change in the diameter of the wire rope is output.

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