Belt tearing fault simulation device and simulation method based on field step

Abstract

The invention relates to the technical field of fault simulation, and discloses a belt tearing fault simulation device based on field step, which comprises a frame body and a belt, and further comprises a winding assembly, a cutting assembly and a testing assembly, the number of the cutting assemblies is two, the two cutting assemblies are located on the upper side and the lower side of the belt correspondingly and longitudinally arranged on the frame body in a sliding mode, and each cutting assembly comprises a blade. The simulation method comprises the following steps of S1, forward rotation, S2, slit cutting, S3, primary data acquisition, S4, reverse rotation, S5, secondary data acquisition, S6, data comparison, S7, change of the transverse position of the blade, and repeating S1 to S6. The invention provides a belt tearing fault simulation device and simulation method based on field step, which can solve or at least alleviate the problem that an existing device cannot conveniently and accurately simulate a belt tearing fault.

Description

Technical Field

[0001] The present invention relates to the technical field of fault simulation, and in particular to a belt tearing fault simulation device and method based on field step. Background Art

[0002] Belt conveyors are widely used as continuous transport equipment in industrial production processes. However, belts are prone to wear, aging, fatigue fracture, and other failures, which severely limit their service life and the safe and reliable operation of the entire system. Currently, research on belt fault diagnosis focuses on methods such as vibration signal analysis, acoustic emission detection, capacitance sensor detection, and infrared monitoring. These methods primarily rely on indirect measurements and cannot directly reflect changes in the belt's internal state. Furthermore, due to the unique characteristics of belt materials, traditional nondestructive testing methods are difficult to apply to belt damage detection.

[0003] The existing belt testing device has the following disadvantages: (1) Existing belt testing devices mostly use chemical corrosion methods to simulate belt aging. This method can only simulate the state changes of the belt surface and cannot reflect the changes in the internal structure of the belt; (2) Existing belt testing devices use high-temperature baking to accelerate the aging process of belts. Although this approach can accelerate the aging of belts, it ignores the stress conditions of the belts in the actual working environment. Therefore, the results obtained cannot fully represent the actual situation. (3) Existing belt testing devices all test the entire belt, which makes it difficult to accurately determine the degree of damage to a certain part of the belt. Summary of the Invention

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art, solve or at least alleviate the problem that the existing devices cannot conveniently and accurately simulate belt tearing faults, and provide a belt tearing fault simulation device and simulation method based on field steps.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a field step-based belt tearing fault simulation device, comprising a frame and a belt, and further comprising: A winding assembly, which is used to drive the belt to move along the frame; a cutting assembly for cutting slits in the belt; A test assembly for testing the effect of the slit on the belt, the test assembly comprising a temperature field establishment device for increasing the temperature field of the belt and a thermal imager for capturing thermal characteristic images of the belt; Among them, there are two cutting components, which are respectively located on the upper and lower sides of the belt and are both longitudinally slidably set on the frame. The cutting components each include a blade, which slides longitudinally and transversely on the cutting component. The blade rises and falls with the cutting component, and the blade edge faces the belt.

[0006] Furthermore, a steering roller is rotatably provided at one end of the frame, and a first auxiliary roller and a second auxiliary roller are sequentially provided on one side of the steering roller. The first auxiliary roller and the second auxiliary roller are both rotatably provided on the frame, and the first auxiliary roller makes the belt on the steering roller fit tightly against the steering roller, and the second auxiliary roller makes the belt on the first auxiliary roller fit tightly against the first auxiliary roller.

[0007] Furthermore, the two cutting assemblies are respectively located on the upper side of the steering roller and the lower side of the first auxiliary roller, and the cutting assembly further includes: A positioning block is used to limit the position during cutting. The two positioning blocks are located on both sides of the cutting assembly. During cutting, the positioning blocks are attached to the steering roller or the first auxiliary roller; A slide bar, the slide bar being laterally arranged between the two positioning blocks; The knife seat is used to fix the blade. The knife seat is axially slidable on the slide rod, and the blade is longitudinally slidable on the knife seat.

[0008] Furthermore, the knife seat is provided with a flattening portion at one end facing the belt, and the end face of the flattening portion is an outwardly convex arc surface. The distance between the end face of the flattening portion and the positioning block close to the steering roller or the end of the first auxiliary roller is equal to the thickness of the belt. During cutting, the flattening portion is in contact with the belt.

[0009] Furthermore, the cutting assembly further comprises: The positioning mechanism is used to set the longitudinal position of the blade relative to the blade seat. The positioning mechanism includes a positioning rod, the end of which is rotatably set on the blade, and the end of the positioning rod away from the belt is threadedly sleeved on the blade seat.

[0010] Furthermore, the winding assembly includes: A pay-off roller, used for winding up the uncut belt, wherein the pay-off roller is rotatably arranged at one end of the frame away from the steering roller; The belt take-up roller is used for winding up the cut belt, and the belt take-up roller is rotatably arranged at one end of the frame away from the steering roller.

[0011] Furthermore, the unwinding roller is transmission-connected to the take-up roller and moves synchronously in opposite directions.

[0012] Furthermore, the test components are arranged in a plurality in an array along the length direction of the frame.

[0013] At the same time, the present application also discloses a belt tearing fault simulation method based on field step, using the above-mentioned belt tearing fault simulation device based on field step, comprising the following steps: S1, rotates forward, starts the winding mechanism, and drives the belt from the temperature field establishment device to the thermal imager; S2, cutting slits, cutting slits on the belt by a cutting component; S3, primary data collection: when the slit passes through the temperature field establishment device, the thermal imager collects the thermal characteristic image of the belt at this time; S4, reverse rotation, start the winding mechanism, and drive the belt to move from the thermal imager to the temperature field establishment device.

[0014] S5, secondary data collection, when the slit passes through the temperature field establishment device, the thermal imager collects the thermal characteristic image of the belt at this time; S6. Data comparison: comparing the data from the first data collection and the second data collection; S7. Change the lateral position of the blade and repeat S1-S6.

[0015] At the same time, the present application also discloses a belt tearing fault simulation method based on field step, wherein the slit in step S2 includes an upper half slit, a lower half slit and a full slit; When cutting the upper slit, the cutting assembly located on the lower side of the belt moves away from the belt, and the blade of the cutting assembly located on the lower side of the belt extends into the belt; When cutting the lower half slit, the cutting assembly located on the lower side of the belt is away from the belt, and the blade of the cutting assembly located on the lower side of the belt extends into the belt; when cutting the full slit, the blades of the two cutting assemblies are located at the same horizontal position, and the blades of the two cutting assemblies both extend into the belt, and the distance the blade extends into the belt is greater than half of the belt thickness.

[0016] The beneficial effects of the present invention are: (1) The present invention places the belt in a specific temperature field environment and uses the characteristic that the heat conduction at the slit is greater than the heat conduction at the non-slit area to collect thermal characteristic maps of different slits and record the thermal characteristic maps corresponding to different slits, so as to facilitate the training of the fault judgment model.

[0017] (2) The present invention can quickly and accurately simulate the tearing area of the belt, so that the collected data is more consistent with the actual fault.

[0018] (3) The present invention can avoid many problems existing in traditional methods, such as cumbersome operation and inaccurate results.

[0019] (4) The present invention can be applied to various types of belts and can complete the test without additional hardware investment, thus reducing the test cost.

[0020] (5) The present invention can obtain a large amount of effective test data in a short time, thereby improving the test accuracy and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention.

[0022] Figure 2 It is a structural cross-sectional view of the present invention.

[0023] Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle.

[0024] Figure 4 For the present invention Figure 2 Enlarged view of point B in the middle.

[0025] Figure 5 For the present invention Figure 2 Cross-sectional view at CC.

[0026] Figure 6 It is a schematic structural diagram of the cutting assembly of the present invention.

[0027] Figure 7 It is a schematic diagram of the assembly of the positioning block and the sliding rod of the present invention.

[0028] Figure 8 It is a structural schematic diagram of the knife holder of the present invention.

[0029] Figure 9 It is a schematic structural diagram of the blade of the present invention.

[0030] The accompanying drawings are: 1. Frame; 2. Belt; 3. Temperature field establishment device; 4. Thermal imager; 5. Blade; 6. Steering roller; 7. First auxiliary roller; 8. Second auxiliary roller; 9. Positioning block; 10. Sliding rod; 11. Blade holder; 12. Flattening part; 13. Positioning rod; 14. Unwinding roller; 15. Take-up roller. DETAILED DESCRIPTION

[0031] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0032] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention. Example

[0033] like Figures 1-9 As shown, this embodiment provides a belt tearing fault simulation device based on field step, including a frame 1 and a belt 2, and further comprising: A winding assembly, which is used to drive the belt 2 to move along the frame 1; a cutting assembly for cutting slits in the belt 2; A test assembly for testing the effect of the slit on the belt 2, the test assembly comprising a temperature field establishment device 3 for increasing the temperature field of the belt 2 and a thermal imager 4 for capturing thermal characteristic images of the belt 2; Among them, there are two cutting components, which are respectively located on the upper and lower sides of the belt 2 and are both longitudinally slidably arranged on the frame 1. The cutting components each include a blade 5, which slides longitudinally and transversely on the cutting component. The blade 5 rises and falls with the cutting component, and the blade 5 faces the belt 2.

[0034] Of course, in actual application, only one cutting component can be set, and only one cutting component needs to be set on one side of the belt 2. It can also be three or more cutting components, as long as the belt 2 can be cut.

[0035] In the technical solution provided by this embodiment, when the belt 2 is heated, heat energy will dissipate at the slits, resulting in a temperature difference. By observing the thermal characteristic map, the position of the slits and the tearing condition of the belt 2 can be evaluated.

[0036] In the technical solution provided in this embodiment, the experimental conditions can be adjusted by controlling factors such as the depth and lateral position of the slit, thereby achieving the purpose of testing different types of belts 2.

[0037] A steering roller 6 is rotatably provided at one end of the frame 1, and a first auxiliary roller 7 and a second auxiliary roller 8 are sequentially provided on one side of the steering roller 6. The first auxiliary roller 7 and the second auxiliary roller 8 are both rotatably provided on the frame 1. The first auxiliary roller 7 makes the belt 2 on the steering roller 6 fit tightly against the steering roller 6, and the second auxiliary roller 8 makes the belt 2 on the first auxiliary roller 7 fit tightly against the first auxiliary roller 7; wrinkles on the belt 2 are avoided at the cutting slit, thereby ensuring the cutting accuracy of the slit.

[0038] In order to facilitate the cutting of the slits, the two cutting assemblies are respectively located on the upper side of the steering roller 6 and the lower side of the first auxiliary roller 7. The cutting assembly also includes: Positioning blocks 9 are used to limit the position during cutting. Two positioning blocks 9 are located on both sides of the cutting assembly. During cutting, the positioning blocks 9 are attached to the steering roller 6 or the first auxiliary roller 7. A slide bar 10, which is laterally arranged between the two positioning blocks 9; The blade seat 11 is used to fix the blade 5. The blade seat 11 is axially slidably arranged on the slide rod 10, and the blade 5 is longitudinally slidably arranged on the blade seat 11.

[0039] Before cutting the slit, first adjust the longitudinal position of the blade 5 relative to the blade holder 11. The lower end of the blade 5 extends out of the blade holder 11. The extension distance is the cutting depth. When the slit needs to be cut, the segment positioning block 9 drives the slide bar 10 to move longitudinally, so that it abuts against the steering roller 6 or the first auxiliary roller 7. At this time, the cutting edge of the blade 5 extends into the belt 2, and the flattening part 12 presses against the belt 2 to be cut, avoiding wrinkles when cutting the belt 2 and ensuring the accuracy of the cutting depth. As the belt 2 moves, the slit can be cut on the belt 2.

[0040] In some embodiments, a flattening portion 12 is provided at one end of the knife seat 11 facing the belt 2, and the end face of the flattening portion 12 is an outwardly convex arc surface. The distance between the end face of the flattening portion 12 and the end of the positioning block 9 close to the steering roller 6 or the first auxiliary roller 7 is equal to the thickness of the belt 2. During cutting, the flattening portion 12 fits against the belt 2.

[0041] Furthermore, the cutting assembly further comprises: The positioning mechanism is used to set the longitudinal position of the blade 5 relative to the blade holder 11. The positioning mechanism includes a positioning rod 13. The end of the positioning rod 13 is rotatably set on the blade 5. The end of the positioning rod 13 away from the belt 2 is threadedly fitted on the blade holder 11.

[0042] In addition, the winding assembly includes: A pay-off roller 14 is used to reel in the uncut belt 2. The pay-off roller 14 is rotatably disposed at one end of the frame 1 away from the steering roller 6. The take-up roller 15 is used to reel in the cut belt 2 . The take-up roller 15 is rotatably disposed at one end of the frame 1 away from the steering roller 6 .

[0043] In order to facilitate the control of the forward and reverse movement of the belt 2, the unwinding roller 14 is connected to the take-up roller 15 in a transmission manner and moves in opposite directions synchronously.

[0044] In order to obtain more data, the test components are arranged in a plurality in an array along the length direction of the frame 1 . Example

[0045] This embodiment provides a belt tear fault simulation method based on field step, using the above-mentioned belt tear fault simulation device based on field step, including the following steps: S1, forward rotation, starting the winding mechanism, driving the belt 2 from the temperature field establishment device 3 to the thermal imager 4; S2, cutting slits, cutting slits on belt 2 by a cutting assembly; S3, primary data collection: when the slit passes through the temperature field establishing device 3, the thermal imager 4 collects the thermal characteristic image of the belt 2 at this time; S4, reverse rotation, start the winding mechanism, and drive the belt 2 to move from the thermal imager 4 to the temperature field establishment device 3.

[0046] S5, secondary data collection, when the slit passes through the temperature field establishment device 3, the thermal imager 4 collects the thermal characteristic image of the belt 2 at this time; S6. Data comparison: comparing the data from the first data collection and the second data collection; S7, change the lateral position of the blade 5, and repeat S1-S6.

[0047] In the technical solution provided by this embodiment, slits are formed in belt 2, and then the belt 2 is scanned by a thermal imager 4 to obtain the temperature distribution of different areas of belt 2. If a crack exists in belt 2, the temperature at the crack will be significantly lower than the surrounding area. This is because the crack hinders heat transfer, causing the temperature at the crack to drop. Therefore, by analyzing the temperature distribution obtained by the thermal imager 4, it is possible to determine whether there is a problem with the belt 2.

[0048] The slits in step S2 include an upper half slit, a lower half slit, and a full slit; When cutting the upper half slit, the cutting assembly located on the lower side of the belt 2 moves away from the belt 2, and the blade 5 of the cutting assembly located on the lower side of the belt 2 extends into the belt 2; When cutting the lower half slit, the cutting assembly located on the lower side of the belt 2 is away from the belt 2, and the blade 5 of the cutting assembly located on the lower side of the belt 2 extends into the belt 2; when cutting the full slit, the blades 5 of the two cutting assemblies are located at the same horizontal position, and the blades 5 of the two cutting assemblies both extend into the belt 2, and the distance that the blade 5 extends into the belt 2 is greater than half of the thickness of the belt 2.

[0049] Preventing the blade from directly contacting the steering roller 6 or the first auxiliary roller 7 not only prevents the steering roller 6 or the first auxiliary roller 7 from being damaged, ensuring the stability of the belt 2 movement, but also increases the service life of the blade 5.

[0050] Specifically, belt 2 is first wound around frame 1, ensuring it is flat and wrinkle-free. Next, blade 5 is adjusted to the set position, and the rewinding assembly is activated, causing belt 2 to rotate and create a slit. Belt 2 then continues to rotate, and when the slit reaches the belt's temperature field, the test equipment records the current thermal signature.

[0051] Next, the belt 2 is rotated in the reverse direction, and the current thermal signature image is recorded again when the slit on the belt 2 reaches the belt temperature field in the reverse direction. The position of the blade 5 is then adjusted and the above steps are repeated until all types and positions of slits have been tested.

[0052] Finally, all the test data are collected, analyzed and compared. Based on the test results, test data corresponding to various types and positions of slits on the belt 2 can be obtained for training the fault judgment model.

[0053] The above are only preferred specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A belt tearing fault simulation device based on field step, comprising a frame (1) and a belt (2), characterized in that: Also includes: A winding assembly, used to drive the belt (2) to move along the frame (1); a cutting assembly for cutting slits in the belt (2); A test assembly for testing the effect of a slit on a belt (2), the test assembly comprising a temperature field establishment device (3) for establishing a belt temperature field and a thermal imager (4) for collecting a thermal characteristic image of the belt (2); There are two cutting assemblies, which are respectively located on the upper and lower sides of the belt (2) and are both longitudinally slidably arranged on the frame (1). The cutting assemblies each include a blade (5), which is longitudinally and transversely slidably arranged on the cutting assembly. The blade (5) rises and falls together with the cutting assembly, and the cutting edge of the blade (5) faces the belt (2).

2. The belt tearing fault simulation device based on field step according to claim 1, characterized in that: A steering roller (6) is rotatably provided at one end of the frame (1), and a first auxiliary roller (7) and a second auxiliary roller (8) are sequentially provided on one side of the steering roller (6). The first auxiliary roller (7) and the second auxiliary roller (8) are both rotatably provided on the frame (1). The first auxiliary roller (7) makes the belt (2) on the steering roller (6) closely fit to the steering roller (6), and the second auxiliary roller (8) makes the belt (2) on the first auxiliary roller (7) closely fit to the first auxiliary roller (7).

3. The belt tearing fault simulation device based on field step according to claim 2, characterized in that: The two cutting assemblies are respectively located on the upper side of the steering roller (6) and the lower side of the first auxiliary roller (7), and the cutting assemblies further include: A positioning block (9) is used for limiting the position during cutting. The two positioning blocks (9) are respectively located on both sides of the cutting assembly. During cutting, the positioning blocks (9) are attached to the steering roller (6) or the first auxiliary roller (7); A slide bar (10), wherein the slide bar (10) is laterally arranged between the two positioning blocks (9); A knife seat (11) is used to fix the blade (5), wherein the knife seat (11) is axially slidably arranged on the slide rod (10), and the blade (5) is longitudinally slidably arranged on the knife seat (11).

4. The belt tearing fault simulation device based on field step according to claim 3, characterized in that: A flattening portion (12) is provided on one end of the knife seat (11) facing the belt (2). The end face of the flattening portion (12) is an outwardly convex arc surface. The distance between the end face of the flattening portion (12) and the end of the positioning block (9) close to the steering roller (6) or the first auxiliary roller (7) is equal to the thickness of the belt (2). When cutting, the flattening portion (12) is in contact with the belt (2).

5. The belt tearing fault simulation device based on field step according to claim 3, characterized in that: The cutting assembly further comprises: A positioning mechanism is used to set the longitudinal position of the blade (5) relative to the blade seat (11), the positioning mechanism comprising a positioning rod (13), the end of the positioning rod (13) being rotatably arranged on the blade (5), and the end of the positioning rod (13) away from the belt (2) being threadedly sleeved on the blade seat (11).

6. The belt tearing fault simulation device based on field step according to claim 2, characterized in that: The winding assembly comprises: a belt unwinding roller (14) for winding up the uncut belt (2), wherein the belt unwinding roller (14) is rotatably arranged at one end of the frame (1) away from the steering roller (6); The belt take-up roller (15) is used for winding up the cut belt (2), and the belt take-up roller (15) is rotatably arranged at one end of the frame (1) away from the steering roller (6).

7. The belt tearing fault simulation device based on field step according to claim 6, characterized in that: The unwinding roller (14) is connected to the take-up roller (15) in a transmission manner and moves synchronously in opposite directions.

8. The field step-based belt tearing fault simulation device according to claim 1, characterized in that: The test components are multiple and arranged in an array along the length direction of the frame (1).

9. A method for simulating a belt tearing fault based on a field step, using a belt tearing fault simulation device based on a field step according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1, forward rotation, starts the reeling mechanism, and drives the belt (2) to move from the temperature field establishing device (3) to the thermal imager (4); S2, cutting slits, cutting slits on the belt (2) by a cutting assembly; S3, a data acquisition, when the slit passes through the temperature field establishing device (3), the thermal imager (4) acquires the thermal characteristic image of the belt (2) at this time; S4, reverse rotation, starting the reeling mechanism, driving the belt (2) to move from the thermal imager (4) to the temperature field establishing device (3); S5, secondary data acquisition, when the slit passes through the temperature field establishing device (3), the thermal imager (4) collects the thermal characteristic image of the belt (2) at this time; S6. Data comparison: comparing the data from the first data collection and the second data collection; S7, change the lateral position of the blade (5), and repeat S1-S6.

10. A belt tearing fault simulation method based on field step, characterized in that: The slits in step S2 include an upper half slit, a lower half slit, and a full slit; When cutting the upper half slit, the cutting assembly located on the lower side of the belt (2) moves away from the belt (2), and the blade (5) of the cutting assembly located on the upper side of the belt (2) extends into the belt (2); When cutting the lower half slit, the cutting assembly located on the upper side of the belt (2) moves away from the belt (2), and the blade (5) of the cutting assembly located on the lower side of the belt (2) extends into the belt (2); When cutting a full slit, the blades (5) of the two cutting assemblies are located at the same transverse position, the cutting edges of the blades (5) of the two cutting assemblies both extend into the belt (2), and the distance that the blades (5) extend into the belt (2) is greater than half the thickness of the belt (2).

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