A carrier roller support structure with online repair function and a method of using the same

Abstract

The application discloses a roller support structure with an online maintenance function and a use method thereof, and relates to the technical field of conveying belt equipment.The roller support structure comprises a conveying belt support provided with a conveying belt through transmission connection at the top, a quick-change support fixedly connected to the bottom of the conveying belt support, a quick-change adjusting assembly rotatably connected to one end of the quick-change support, an adjusting connecting rod rotatably connected to the other end of the quick-change adjusting assembly, a support bearing seat rotatably connected to the lower portion of the adjusting connecting rod, and a swing shaft rotatably connected to the lower end of the support bearing seat.After receiving an alarm, an operator can operate the quick-change adjusting assembly and a swing handle on the swing shaft alone.First, the quick-change adjusting assemblies on both sides are operated to make the locking bosses disengage from the positioning grooves of the self-locking fork frames, and the swing support is unlocked;then, the swing handle is rotated to rotate the swing support, the standby roller located at a high position is switched to a working position, and the damaged main roller is switched to the lower position.The conveying belt does not need to be stopped during the whole process, the maintenance efficiency is greatly improved, and the production interruption is avoided.

Description

Technical Field

[0001] This invention relates to the field of conveyor belt equipment technology, and in particular to a roller support structure with online maintenance function and its usage method. Background Technology

[0002] In the use of overhead cantilever conveyor belt equipment (such as overhead belt conveyors, stacker-reclaimer cantilever belt conveyors, etc.), most of the return surface parallel idlers are suspended. Due to their large size and length, high stress, and low overall structural strength, these parallel idlers are prone to breakage, surface scaling, and cracking. Furthermore, the original support structure for these parallel idlers is too simple to allow for online replacement during conveyor operation. If idlers are damaged, have broken or cracked surfaces during operation, they pose a significant risk of scratching the conveyor belt, potentially leading to longitudinal tearing. This risk is particularly pronounced in overhead cantilever conveyor belt equipment, where the support height exceeds 2 meters, commonly found in stacker-reclaimers, ship loader cantilever conveyor belt mechanisms, and belt conveyors spanning elevated overhead cranes. Moreover, because the area below the return conveyor belt in overhead cantilever conveyor belt equipment lacks a receiving plate or working platform, it is difficult to quickly replace or easily handle damaged return parallel idlers.

[0003] Under normal circumstances, the only solution is to stop production and have personnel perform high-altitude replacements, which is time-consuming, labor-intensive, and dangerous. During the repair of damaged idlers, the equipment must be shut down for a considerable period of time, resulting in production disruptions. The failure of a single idler can significantly impact production efficiency and reduce capacity. Furthermore, considering the large number of idlers on a conveyor belt, the probability of idler damage can be compounded, leading to an uncontrollable failure rate for the conveyor belt equipment. These factors severely affect the safety and reliability of overhead cantilever conveyor belt equipment. The design of typical return-side parallel idler supports also severely restricts the overall troubleshooting capabilities and operational reliability of the equipment. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a roller support structure with online maintenance function and its usage method.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A roller support structure with online maintenance function includes a conveyor belt support with a conveyor belt connected to the upper drive. A quick-change support is fixedly connected to the bottom of the conveyor belt support. A quick-change adjustment component is rotatably connected to one end of the quick-change support. An adjustment rod is rotatably connected to the other end of the quick-change adjustment component. A support bearing seat is rotatably connected below the adjustment rod. A swing shaft is rotatably connected to the lower end of the support bearing seat. A triangular swing support is fixedly connected to the middle of the swing shaft. A spare roller and a main idler roller are rotatably connected to both ends of the swing support. A locking component is fixedly connected to one end of the quick-change support and the swing support to prevent the swing support from shaking. The locking component can be quickly unlocked after the quick-change adjustment component is flipped.

[0006] Preferably, the quick-change adjustment assembly includes a flip bracket, a fine-tuning screw, a fine-tuning bracket, and a fine-tuning structure. The flip bracket is rotatably connected to the top of the adjustment link, the fine-tuning screw is threadedly connected to the middle of the flip bracket, the lower part of the fine-tuning screw is rotatably connected to the upper part of the fine-tuning bracket, and both ends of the fine-tuning bracket are rotatably connected to the inner side of the quick-change bracket.

[0007] Furthermore, the fine-tuning structure includes an operating handle and a pull rod. The operating handle is fixedly connected to the top of the fine-tuning screw, and the pull rod is rotatably connected to both sides of the operating handle.

[0008] Furthermore: the locking component includes a self-locking fork and a locking boss. The locking boss is fixedly connected to both sides of the swing bracket, and the self-locking fork is fixedly connected to the bottom of the quick-change bracket. A positioning groove is opened under the self-locking fork. Before the quick-change adjustment component is flipped, the locking boss is inserted into the positioning groove to lock the swing bracket. After the quick-change adjustment component is flipped, the locking boss is disengaged from the positioning groove and the swing bracket rotates.

[0009] As a preferred embodiment of the present invention: the quick-change bracket has two clamping rollers rotatably connected to its rear side, the clamping rollers are rotatably connected to both sides of the adjusting rod, and one clamping roller has a buckle rotatably connected to its front end, and the other end of the buckle has a buckle groove.

[0010] As a further aspect of the present invention: swing handles are fixedly connected to both ends of the swing shaft.

[0011] As a further embodiment of the present invention: the swing bracket has roller mounting slots on both sides, and the corresponding spare roller and main roller are installed in the roller mounting slots and fixed by positioning plates. Two trigger switches are fixedly connected to both sides of the swing bracket. One side of the trigger switch controls the connection of an alarm component, and the other end of the alarm component is fixedly connected to one side of the swing bracket.

[0012] Based on the aforementioned scheme: the swing bracket has rope holes on both sides, one end of the trigger switch is rotatably connected to the trigger plate, the trigger plate is attached to the side of the positioning plate button, and one end of the trigger plates on both sides is fixedly connected to the pull rope, which passes through the rope holes and is parallel to the axis of the spare roller and the main roller.

[0013] Based on the aforementioned scheme: the distance between the pull rope and the outer surface of the corresponding spare roller or main roller is 5-10mm.

[0014] A method for using a roller support structure with online maintenance function includes the following steps: S1: When the main idler roller is damaged on the surface due to long-term use, such as peeling or cracking, the damaged part will shake and pull the parallel pull rope during rotation. After the pull rope is pulled, it will drive the trigger plate to rotate, thereby pressing the button of the trigger switch. After the trigger switch is triggered, it will activate the alarm component electrically connected to it and send a fault alarm to the inspection personnel. S2: After the inspector discovers the alarm, they operate from the side of the conveyor belt support. First, they rotate and pry open the buckle so that its buckle slot disengages from the clamping roller on the other side to unlock the quick-change adjustment assembly. Then, they pull the levers on both sides of the operating handle to make the entire quick-change adjustment assembly rotate outward with the connection between the fine-tuning bracket and the quick-change bracket as the center. The rotation of the quick-change adjustment assembly causes the bracket bearing seat to move downward through the adjusting linkage, causing the triangular swing bracket to tilt. At this time, the locking boss connected to one side of the swing bracket will disengage from the positioning groove of the self-locking fork, thereby releasing the lock on that side. S3: Repeat the above operation on the quick-change adjustment assembly on the other side of the conveyor belt support. After the operation on both sides is completed, the swing support and its main idler roller and spare roller are lowered as a whole and are in a horizontal state. The locking bosses on both sides have disengaged from the self-locking fork frame. At this time, the swing shaft and swing support can rotate freely. S4: The operator holds the swing handles at both ends of the swing shaft and rotates the swing shaft 90 degrees. The swing shaft drives the triangular swing bracket to rotate 90 degrees, so that the spare roller that was originally located at the bottom moves to the upper working position, while the damaged main support roller moves to the bottom. S5: Push the quick-change adjustment components on both sides back to their original positions, so that they flip in the opposite direction with the fine-tuning bracket as the center, and lift the swing bracket and the spare roller above upwards, so that the spare roller is in close contact with and supports the conveyor belt, replacing the function of the original main idler roller. S6: Rotate the buckle back so that its buckle slot engages with the clamping roller on the other side, locking the quick-change adjustment assembly to prevent it from swinging accidentally. S7: The fine-tuning mechanism drives the fine-tuning screw below to rotate, allowing the fine-tuning bracket to slide up and down the adjusting link, thereby adjusting the height of the lower idler roller and allowing the idler roller to be supported tightly against the conveyor belt from below.

[0015] The beneficial effects of this invention are as follows: 1. A roller support structure with online maintenance function, which, upon receiving an alarm, allows a single operator to operate the quick-change adjustment components and the swing handle on the swing shaft. First, the quick-change adjustment components on both sides are operated to disengage the locking boss from the positioning groove of the self-locking fork, releasing the lock on the swing support; then, the swing handle is rotated to rotate the swing support, switching the spare roller located at the higher position to the working position, while the damaged main roller rotates to the lower position. The entire process does not require the conveyor belt to stop, greatly improving maintenance efficiency and avoiding production interruptions.

[0016] 2. A roller support structure with online maintenance function allows for precise adjustment of the roller height via a fine-tuning screw, ensuring full contact with the conveyor belt. A locking mechanism consisting of latches and clamping rollers stably locks the quick-change adjustment assembly, preventing accidental swaying. After the swaying support resets, its locking boss re-inserts into the positioning groove of the self-locking fork, forming a mechanical self-lock, ensuring the support remains stable and does not wobble during operation. The entire replacement process is rationally designed, allowing a single person to complete all operations from one side, ensuring safety and reliability.

[0017] 3. A roller support structure with online maintenance function, when the surface of the main roller or spare roller is damaged, the break will hook the pull rope parallel to it, the pull rope pulls the trigger plate to squeeze the trigger switch, thereby activating the alarm component to emit an audible and visual alarm, which can detect the initial damage of the roller in time and prevent the fault from expanding. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of a roller support structure with online maintenance function proposed in this invention; Figure 2 This is a schematic diagram of the adjusting linkage installation structure of a roller support structure with online maintenance function proposed in this invention; Figure 3 This is a schematic diagram of the operating handle installation structure of an idler roller bracket structure with online maintenance function proposed in this invention; Figure 4 This is a schematic diagram of the swing bracket installation structure of a roller support structure with online maintenance function proposed in this invention; Figure 5 This is a schematic diagram of the alarm component installation structure of an idler roller bracket structure with online maintenance function proposed in this invention; Figure 6 This is a schematic diagram of the trigger switch structure of a roller support structure with online maintenance function proposed in this invention; Figure 7 This is a schematic diagram of quick-change step a of the usage method of the idler roller bracket structure with online maintenance function proposed in this invention; Figure 8This is a schematic diagram of the quick-change step b of the method of using the idler roller bracket structure with online maintenance function proposed in this invention; Figure 9 This is a schematic diagram of the quick-change step c of the method of using the idler roller bracket structure with online maintenance function proposed in this invention; Figure 10 This is a schematic diagram of the quick-change step d of the method of using a roller support structure with online maintenance function proposed in this invention.

[0019] Figure label: 1. Conveyor belt support; 2. Conveyor belt; 3. Quick-change support; 4. Swing support; 5. Swing shaft; 6. Spare roller; 7. Main idler roller; 8. Support bearing seat; 9. Adjusting linkage; 10. Swing handle; 11. Tilting support; 12. Fine-tuning screw; 13. Operating handle; 14. Pull rod; 15. Fine-tuning support; 16. Self-locking fork; 17. Clamping roller; 18. Fastener; 19. Fastener groove; 20. Pull rope; 21. Positioning groove; 22. Alarm component; 23. Idler roller mounting groove; 24. Positioning plate; 25. Locking boss; 26. Rope threading hole; 27. Trigger switch; 28. Trigger plate. Detailed Implementation

[0020] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0021] The embodiments of this patent are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this patent, and should not be construed as limiting this patent.

[0022] Example 1: A roller support structure with online maintenance function, such as Figure 1 - Figure 10 As shown, the conveyor belt bracket 1 is connected to the upper drive of the conveyor belt 2. The bottom of the conveyor belt bracket 1 is fixedly connected to the quick-change bracket 3. One end of the quick-change bracket 3 is rotatably connected to the quick-change adjustment component. The other end of the quick-change adjustment component is rotatably connected to the adjustment rod 9. The lower part of the adjustment rod 9 is rotatably connected to the bracket bearing seat 8. The lower end of the bracket bearing seat 8 is rotatably connected to the swing shaft 5. The middle part of the swing shaft 5 is fixedly connected to the triangular swing bracket 4. The two ends of the swing bracket 4 are respectively rotatably connected to the spare roller 6 and the main support roller 7. The quick-change bracket 3 and the swing bracket 4 are fixedly connected to one end of the locking component to prevent the swing bracket 4 from shaking. The locking component can be quickly unlocked after the quick-change adjustment component is flipped. The swing bracket 4 has roller mounting grooves 23 on both sides, which are respectively installed into the corresponding spare roller 6 and main roller 7 and fixed by positioning plate 24. Two trigger switches 27 are fixedly connected to both sides of the swing bracket 4. One side of the trigger switch 27 is connected to an alarm component 22, and the other end of the alarm component 22 is fixedly connected to one side of the swing bracket 4. The swing bracket 4 has rope holes 26 on both sides. One end of the trigger switch 27 is rotatably connected to a trigger plate 28. The trigger plate 28 is attached to the button side of the positioning plate 24. One end of the trigger plates 28 on both sides is fixedly connected to a pull rope 20. The pull rope 20 passes through the rope hole 26 and is parallel to the axis of the spare roller 6 and the main roller 7. The distance between the pull rope 20 and the outer surface of the corresponding spare roller 6 or main support roller 7 is 5-10mm. After prolonged use, the main idler roller 7 will be damaged, and the surface of the idler roller will be damaged. At this time, the damaged opening will shake and squeeze and pull the pull rope 20 parallel to the idler roller when rotating. When the pull cord 20 is stretched and deformed, it will cause the trigger plates 28 on both sides to rotate inward, thereby squeezing the button of the trigger switch 27. This will activate the alarm component 22 that is electrically connected to it, together with the trigger switch 27. The alarm component 22 is preferably a warning light, but it can also be an audible and visual alarm component that provides audible and visual alarm at the same time. The quick-change adjustment assembly includes a flip bracket 11, a fine-tuning screw 12, a fine-tuning bracket 15, and a fine-tuning structure. The flip bracket 11 is rotatably connected to the top of the adjustment link 9, the fine-tuning screw 12 is threadedly connected to the middle of the flip bracket 11, the lower part of the fine-tuning screw 12 is rotatably connected to the upper part of the fine-tuning bracket 15, and both ends of the fine-tuning bracket 15 are rotatably connected to the inner side of the quick-change bracket 3. The fine-tuning structure includes an operating handle 13 and a pull rod 14. The operating handle 13 is fixedly connected to the top of the fine-tuning screw 12, and the pull rod 14 is rotatably connected to both sides of the operating handle 13. The fine-tuning mechanism can drive the fine-tuning screw 12 below to rotate, allowing the fine-tuning bracket 15 to slide up and down on the adjusting link 9, thereby adjusting the height of the lower idler roller 7, so that the idler roller can be supported from below against the conveyor belt 2. The locking assembly includes a self-locking fork 16 and a locking boss 25. The locking boss 25 is fixedly connected to both sides of the swing bracket 4, and the self-locking fork 16 is fixedly connected to the bottom of the quick-change bracket 3. A positioning groove 21 is opened below the self-locking fork 16. Before the quick-change adjustment assembly is flipped, the locking boss 25 is inserted into the positioning groove 21 to lock the swing bracket 4. After the quick-change adjustment assembly is flipped, the locking boss 25 is disengaged from the positioning groove 21 and the swing bracket 4 can rotate. When the staff detects the alarm, they can rotate the flip-out lever 14 on one side of the conveyor belt bracket 1, and then pull the lever 14 to make the quick adjustment component rotate around the rotating connection between the fine adjustment bracket 15 and the quick change bracket 3. Then, the adjusting linkage 9 will drive the corresponding bracket bearing seat 8 to move downward, thereby tilting the spare roller 6 and the main idler roller 7. Figure 7 Medium state; At this time, the locking boss 25 on one side moves downward along with the swing bracket 4 on the corresponding side and disengages from the self-locking fork 16 above. Then, perform the same operation on the other side of the quick-change adjustment assembly, allowing the spare roller 6 and the main idler roller 7 to descend as a whole and reach a horizontal position. Figure 8 In the middle position, the locking bosses 25 on both sides have disengaged from the self-locking fork 16 above, and the swing shaft 5 can drive the swing bracket 4 to rotate. Next, rotate the swing shaft 5 90 degrees. Swing handles 10 are fixedly connected to both ends of the swing shaft 5. The swing handles 10 facilitate operation, allowing the spare roller 6, originally located at a lower position, to move to a higher position, and the main support roller 7 to the bottom position. Figure 9 Medium state; Subsequently, by pushing up the quick-change adjustment assembly, the assembly rotates in the opposite direction around the pivot point between the fine-tuning bracket 15 and the quick-change bracket 3, thereby raising the spare roller 6 to a higher position to press against the bottom of the conveyor belt 2 for support. Figure 10 The status allows for quick switching.

[0023] like Figure 1 - Figure 10 As shown, the quick-change bracket 3 has two clamping rollers 17 rotatably connected to its rear side. The clamping rollers 17 are rotatably connected to both sides of the adjusting rod 9. One clamping roller 17 has a buckle 18 rotatably connected to its front end. The other end of the buckle 18 has a buckle groove 19. When the buckle groove 19 of the buckle 18 is fastened to one end of the clamping roller 17 on the other side, the quick-change adjustment component can be locked to prevent it from swinging. When the idler needs to be replaced online, the latch 18 can be rotated to unlock it and allow for rotation of the quick adjustment component.

[0024] In this embodiment, after prolonged use, the main idler roller 7 will be damaged, and the surface of the idler roller will be damaged. At this time, the damaged opening will shake and squeeze and pull the pull rope 20 parallel to the idler roller when rotating. When the pull cord 20 is stretched and deformed, it will cause the trigger plates 28 on both sides to rotate inward, thereby squeezing the button of the trigger switch 27. This will activate the alarm component 22 that is electrically connected to it, together with the trigger switch 27. The alarm component 22 is preferably a warning light, but it can also be an audible and visual alarm component that provides audible and visual alarm at the same time. When the staff detects the alarm, they can rotate the flip-out lever 14 on one side of the conveyor belt bracket 1, and then pull the lever 14 to make the quick adjustment component rotate around the rotating connection between the fine adjustment bracket 15 and the quick change bracket 3. Then, the adjusting linkage 9 will drive the corresponding bracket bearing seat 8 to move downward, thereby tilting the spare roller 6 and the main idler roller 7. Figure 7 Medium state; At this time, the locking boss 25 on one side moves downward along with the swing bracket 4 on the corresponding side and disengages from the self-locking fork 16 above. Then, perform the same operation on the other side of the quick-change adjustment assembly, allowing the spare roller 6 and the main idler roller 7 to descend as a whole and reach a horizontal position. Figure 8 In the middle position, the locking bosses 25 on both sides have disengaged from the self-locking fork 16 above, and the swing shaft 5 can drive the swing bracket 4 to rotate. Next, rotate the swing shaft 5 90 degrees. Swing handles 10 are fixedly connected to both ends of the swing shaft 5. The swing handles 10 facilitate operation, allowing the spare roller 6, originally located at a lower position, to move to a higher position, and the main support roller 7 to the bottom position. Figure 9 Medium state; Subsequently, by pushing up the quick-change adjustment assembly, the assembly rotates in the opposite direction around the pivot point between the fine-tuning bracket 15 and the quick-change bracket 3, thereby raising the spare roller 6 to a higher position to press against the bottom of the conveyor belt 2 for support. Figure 10 The state allows for quick switching; When the buckle 18's slot 19 is fastened to one end of the clamping roller 17 on the other side, the quick-change adjustment assembly can be locked to prevent it from swinging. When the idler needs to be replaced online, the latch 18 can be rotated to unlock it, allowing the quick adjustment component to be rotated. This invention can troubleshoot online, replace idlers online, and reset idlers into the production process, which improves the efficiency of troubleshooting and completely avoids the impact on production. At the same time, it is easy for personnel to operate and maintain, does not require multiple people to handle, and can handle faults by a single person in one direction regardless of whether the person handling the fault is on the left or right side of the conveyor belt support 1. The alarm component 22 can detect roller breakage and damage in a timely and accurate manner, and notify the inspection personnel with both sound and light, thereby improving the fault detection rate and enabling timely reporting and handling when the fault risk is small, thus preventing problems from escalating.

[0025] Example 2: A method of using a roller support structure with online maintenance function, comprising the following steps: S1: When the main idler roller 7 is damaged on the surface due to long-term use, such as peeling or cracking, the damaged part will shake and pull the parallel pull rope 20 during rotation. After the pull rope 20 is pulled, it will drive the trigger plate 28 to rotate, thereby pressing the button of the trigger switch 27. After the trigger switch 27 is triggered, it will activate the alarm component 22 that is electrically connected to it and send a fault alarm to the inspection personnel. S2: After the inspector discovers the alarm, they operate from the side of the conveyor belt bracket 1. First, they rotate and pry open the buckle 18, causing its buckle groove 19 to disengage from the clamping roller 17 on the other side, thus unlocking the quick-change adjustment assembly. Then, they pull the levers 14 on both sides of the operating handle 13, causing the entire quick-change adjustment assembly to rotate outward with the connection between the fine-tuning bracket 15 and the quick-change bracket 3 as the center. The rotation of the quick-change adjustment assembly causes the bracket bearing seat 8 to move downward through the adjusting linkage 9, causing the triangular swing bracket 4 to tilt. At this time, the locking boss 25 connected to one side of the swing bracket 4 will disengage from the positioning groove 21 of the self-locking fork 16, thereby releasing the lock on that side. S3: Repeat the above operation on the quick-change adjustment assembly on the other side of the conveyor belt bracket 1. After the operation on both sides is completed, the swing bracket 4 and its main idler roller 7 and spare roller 6 are lowered as a whole and are in a horizontal state, and the locking bosses 25 on both sides have disengaged from the self-locking fork 16. At this time, the swing shaft 5 and the swing bracket 4 can rotate freely; S4: The operator holds the swing handles 10 at both ends of the swing shaft 5 and rotates the swing shaft 5 90 degrees. The swing shaft 5 drives the triangular swing bracket 4 to rotate 90 degrees, so that the spare roller 6, which was originally located at the bottom, moves to the upper working position, while the damaged main support roller 7 moves to the bottom. S5: Push the quick-change adjustment components on both sides back to their original positions, so that they are reversed with the fine-tuning bracket 15 as the center, and push the swing bracket 4 and the spare roller 6 above it upward, so that the spare roller 6 is in close contact with and supports the conveyor belt 2, replacing the function of the original main idler roller 7. S6: Rotate the buckle 18 so that its buckle slot 19 is fastened onto the clamping roller 17 on the other side to lock the quick-change adjustment assembly and prevent it from swinging accidentally. S7: The fine-tuning mechanism can drive the fine-tuning screw 12 below to rotate, allowing the fine-tuning bracket 15 to slide up and down the adjusting link 9, thereby adjusting the height of the idler roller 7 below, so that the idler roller can be supported close to the conveyor belt 2 from below.

[0026] The above description represents a preferred embodiment of the present invention. The scope of protection of the present invention is not limited thereto. Any modifications, equivalent substitutions, and improvements made by those skilled in the art within the scope of the technology disclosed in the present invention, combined with existing technology or common knowledge, and within the spirit and principles of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A roller support structure with online maintenance function, comprising a conveyor belt support (1) with a conveyor belt (2) connected to its upper drive, characterized in that, The conveyor belt support (1) is fixedly connected to a quick-change support (3) at the bottom. One end of the quick-change support (3) is rotatably connected to a quick-change adjustment component. The other end of the quick-change adjustment component is rotatably connected to an adjustment rod (9). The lower part of the adjustment rod (9) is rotatably connected to a support bearing seat (8). The lower end of the support bearing seat (8) is rotatably connected to a swing shaft (5). The middle part of the swing shaft (5) is fixedly connected to a triangular swing support (4). The two ends of the swing support (4) are respectively rotatably connected to a spare roller (6) and a main support roller (7). One end of the quick-change support (3) and the swing support (4) is fixedly connected to a locking component to prevent the swing support (4) from shaking. The locking component can be quickly unlocked after the quick-change adjustment component is flipped.

2. The idler roller support structure with online maintenance function according to claim 1, characterized in that, The quick-change adjustment assembly includes a flip bracket (11), a fine-tuning screw (12), a fine-tuning bracket (15), and a fine-tuning structure. The flip bracket (11) is rotatably connected to the top of the adjustment link (9), the fine-tuning screw (12) is threadedly connected to the middle of the flip bracket (11), the lower part of the fine-tuning screw (12) is rotatably connected to the upper part of the fine-tuning bracket (15), and both ends of the fine-tuning bracket (15) are rotatably connected to the inner side of the quick-change bracket (3).

3. The idler roller support structure with online maintenance function according to claim 2, characterized in that, The fine-tuning structure includes an operating handle (13) and a pull rod (14). The operating handle (13) is fixedly connected to the top of the fine-tuning screw (12), and the pull rod (14) is rotatably connected to both sides of the operating handle (13).

4. The idler roller support structure with online maintenance function according to claim 1, characterized in that, The locking assembly includes a self-locking fork (16) and a locking boss (25). The locking boss (25) is fixedly connected to both sides of the swing bracket (4). The self-locking fork (16) is fixedly connected to the bottom of the quick-change bracket (3). A positioning groove (21) is opened below the self-locking fork (16). Before the quick-change adjustment assembly flips, the locking boss (25) is inserted into the positioning groove (21) to lock the swing bracket (4). After the quick-change adjustment assembly flips, the locking boss (25) disengages from the positioning groove (21) and the swing bracket (4) rotates.

5. The idler roller support structure with online maintenance function according to claim 4, characterized in that, The quick-change bracket (3) has two clamping rollers (17) rotatably connected to the rear side. The clamping rollers (17) are rotatably connected to both sides of the adjusting rod (9). One clamping roller (17) has a buckle (18) rotatably connected to the front end. The other end of the buckle (18) has a buckle groove (19).

6. The idler roller support structure with online maintenance function according to claim 1, characterized in that, The swing shaft (5) has swing handles (10) fixedly connected to both ends.

7. The idler roller support structure with online maintenance function according to claim 1, characterized in that, The swing bracket (4) has roller mounting slots (23) on both sides, and the corresponding spare roller (6) and main roller (7) are installed in the roller mounting slots (23) and fixed by the positioning plate (24). Two trigger switches (27) are fixedly connected on both sides of the swing bracket (4). One side of the trigger switch (27) is connected to an alarm component (22), and the other end of the alarm component (22) is fixedly connected to one side of the swing bracket (4).

8. The idler roller support structure with online maintenance function according to claim 7, characterized in that, The swing bracket (4) has rope holes (26) on both sides. One end of the trigger switch (27) is rotatably connected to the trigger plate (28). The trigger plate (28) is attached to the button side of the positioning plate (24) below. One end of the trigger plates (28) on both sides is fixedly connected to the pull rope (20). The pull rope (20) passes through the rope hole (26) and is parallel to the axis of the spare roller (6) and the main roller (7).

9. A roller support structure with online maintenance function according to claim 8, characterized in that, The distance between the pull rope (20) and the outer surface of the corresponding spare roller (6) or main roller (7) is 5-10 mm.

10. A method of using a roller support structure with online maintenance function according to any one of claims 1-9, characterized in that, Includes the following steps: S1: When the main roller (7) is damaged on the surface due to long-term use, such as peeling or cracking, the damaged part will shake and pull the parallel pull rope (20) during rotation. After the pull rope (20) is pulled, it will drive the trigger plate (28) to rotate, thereby pressing the button of the trigger switch (27). After the trigger switch (27) is triggered, it will activate the alarm component (22) that is electrically connected to it and send a fault alarm to the inspection personnel. S2: After the patrol personnel discover the alarm, they operate from the side of the conveyor belt bracket (1). First, they rotate and pry open the buckle (18) so that the buckle groove (19) is disengaged from the clamping roller (17) on the other side to unlock the quick-change adjustment assembly. They pull the levers (14) on both sides of the operating handle (13) so that the entire quick-change adjustment assembly flips outward with the connection between the fine adjustment bracket (15) and the quick-change bracket (3) as the center. The flipping of the quick-change adjustment assembly drives the bracket bearing seat (8) to move downward through the adjustment link (9), so that the triangular swing bracket (4) tilts. At this time, the locking boss (25) connected to one side of the swing bracket (4) will disengage from the positioning groove (21) of the self-locking fork bracket (16) to release the lock on that side. S3: Repeat the above operation on the quick change adjustment assembly on the other side of the conveyor belt bracket (1). After the operation on both sides is completed, the swing bracket (4) and its main idler roller (7) and spare roller (6) are lowered as a whole and are in a horizontal state. The locking bosses (25) on both sides have been disengaged from the self-locking fork frame (16). At this time, the swing shaft (5) and the swing bracket (4) can rotate freely. S4: The operator holds the swing handles (10) at both ends of the swing shaft (5) and rotates the swing shaft (5) 90 degrees. The swing shaft (5) drives the triangular swing bracket (4) to rotate 90 degrees, so that the spare roller (6) which was originally located below moves to the upper working position, while the damaged main support roller (7) moves to the lower position. S5: Push the quick-change adjustment components on both sides back to their original positions, so that they are reversed with the fine-tuning bracket (15) as the center, and push the swing bracket (4) and the spare roller (6) above upwards, so that the spare roller (6) is in close contact with and supports the conveyor belt (2), replacing the function of the original main idler roller (7). S6: Rotate the buckle (18) so that its buckle slot (19) is fastened onto the clamping roller (17) on the other side to lock the quick-change adjustment assembly and prevent it from swinging accidentally. S7: The fine adjustment mechanism drives the lower fine adjustment screw (12) to rotate, allowing the fine adjustment bracket (15) to slide up and down on the adjusting link (9), thereby adjusting the height of the lower idler roller (7) so that the idler roller can be supported from below against the conveyor belt (2).

Images