Belt conveyor carrier roller set with carrier rollers capable of being rapidly replaced and replacing method

Abstract

The invention relates to the technical field of belt type conveying equipment, and particularly discloses a belt type conveyor carrier roller set capable of rapidly replacing carrier rollers and a replacing method.The belt type conveyor carrier roller set comprises an outer support, an inner support and the carrier rollers, and the outer support is fixed to a rack; the inner bracket comprises a carrier roller main seat, a turnover carrier roller seat and a supporting seat; the carrier roller main seat is arranged in the outer support in a sliding mode and detachably connected with the outer support, the carrier roller main seat is of a multi-section hinged foldable structure, and a carrier roller is installed in the middle of the carrier roller main seat; the two groups of turnover carrier roller seats are symmetrically arranged at two ends of the carrier roller main seat, one end of each group of turnover carrier roller seat is hinged with the carrier roller main seat, and the other end of each group of turnover carrier roller seat extends and is provided with a carrier roller; the two sets of supporting seats are arranged at the ends, away from each other, of the two sets of overturning carrier roller seats respectively, one end of each set of supporting seat is hinged to the corresponding overturning carrier roller seat, and the other end of each set of supporting seat is detachably connected with the carrier roller main seat. By means of the multi-section hinged foldable structure of the inner support and detachable connection of the supporting seat, the carrier roller can be rapidly replaced under the working condition that the space on the two sides is limited.

Description

Technical Field

[0001] This invention relates to the field of belt conveyor technology, specifically to a belt conveyor idler assembly with quickly replaceable idlers and a replacement method. Background Technology

[0002] Belt conveyors, as core equipment for the continuous transport of bulk materials, are widely used in industrial fields such as ports, mines, power, and metallurgy. Idler rollers are key components of belt conveyors, their function being to support the weight of the conveyor belt and materials, and to ensure the smooth operation of the conveyor belt. In the structure of a belt conveyor, multiple idler rollers are mounted on the frame via idler roller brackets, arranged in a trough shape to support the conveyor belt. Because idler rollers are consumable parts, they require regular inspection or replacement during equipment operation.

[0003] To address the inconvenience of replacing idlers, various idler assemblies that are easy to disassemble and assemble have been developed in the existing technology. Generally speaking, these technical solutions mainly use methods such as the split sliding design of the bracket, the detachable connection of the idler seat, and the hinged flipping of the idler seat to allow the idler to be moved out from under the conveyor belt or the overall height to be lowered when replacing it, thereby simplifying the disassembly and assembly operation to a certain extent.

[0004] However, although the aforementioned existing technologies have improved the detachability of idlers in a single dimension, their structural design has always been unable to get rid of the dependence on the lifting of the conveyor belt or the disassembly of surrounding components. As a result, it is still difficult to achieve rapid and unobstructed replacement of idlers in working conditions where there is overhead obstruction, limited space on both sides, and dense arrangement of adjacent idler groups. Summary of the Invention

[0005] To address the technical problems in the prior art, the present invention provides a belt conveyor idler assembly and replacement method with quick-change idler rollers, aiming to solve the problem that in the prior art, when replacing idler rollers in confined spaces, it is still necessary to rely on lifting the conveyor belt or disassembling peripheral components, making it difficult to achieve barrier-free and quick disassembly and assembly.

[0006] The technical solution of the present invention is as follows: A belt conveyor idler assembly with quick-change idlers includes an outer support, an inner support, and idlers, wherein... The external support is fixedly installed on the frame of the belt conveyor; The inner support includes a main idler seat, a tilting idler seat, and a support seat; The main support of the idler roller is slidably disposed inside the outer bracket and is detachably connected to it. The main support of the idler roller is a multi-segment hinged foldable structure, and at least one idler roller is installed in the middle of the main support of the idler roller. The flipping roller seat includes two sets, which are symmetrically arranged at both ends inside the roller main seat. One end of each set of the flipping roller seat is hinged to the roller main seat, and the other end extends in a direction away from the roller main seat. At least one roller is installed on each set of the flipping roller seat. The support base includes two sets, which are respectively located at opposite ends of the two sets of flipping roller seats. One end of each set of support bases is hinged to the corresponding flipping roller seat, and the other end is detachably connected to the main roller seat.

[0007] Optionally, the idler main seat includes a central idler seat and side supports, wherein, At least one roller is installed in the middle of the central roller seat, and the two sets of the flip roller seats are respectively hinged to both ends of the central roller seat; The side supports include two sets, which are respectively located at both ends of the central idler seat. One end of each set of side supports is hinged to the central idler seat, and the other end extends outward along the length of the main idler seat. Each set of side supports is located at the bottom of the corresponding flipping idler seat and has a space for the flipping idler seat to flip downward along the hinge.

[0008] Optionally, the two ends of the flip roller seat and the middle roller seat are respectively provided with slots, and the two ends of the roller are respectively rotatably locked into the corresponding slots.

[0009] Optionally, the slots include multiple slots, which are spaced apart along the width direction of the flip roller seat or the middle roller seat. By selecting slots at different positions to install the rollers, the rollers can be installed at an angle to correct belt deviation.

[0010] Optionally, the support base includes a support plate and a connecting lug plate, wherein, One end of the support plate is hinged to the end of the flipping roller seat away from the main roller seat; The connecting ear plates include two sets, which are symmetrically arranged on both sides of one end of the support plate away from the flip roller seat. The two sets of connecting ear plates are attached to the inner walls of the corresponding side brackets and are detachably connected to the side brackets.

[0011] Optionally, a belt conveyor idler assembly with quick-change idlers also includes a connector; The side bracket has mounting holes, and the connecting ear plate is detachably connected to the mounting holes via a connector.

[0012] Optionally, the mounting holes include multiple sets, and the ear plate rotates along the hinge through the support plate to select mounting holes at different positions for fixed connection, so as to adjust the support angle of the flip roller seat, thereby changing the groove angle of the roller group.

[0013] Optionally, the outer support includes a connecting base plate and side baffles, wherein, The connecting base plate is fixedly installed on the frame of the belt conveyor; The side baffles include two side baffles, which are parallel and spaced apart on the connecting base plate, and a slide rail is formed between the two side baffles for the sliding assembly of the idler roller main seat.

[0014] Optionally, the outer bracket may further include a supporting boss; The support boss includes two sets, which are respectively arranged along the length direction on the inner bottom of the two side baffles, for supporting the main seat of the idler roller and slidingly engaging with it.

[0015] The present invention also provides a method for replacing idler rollers in a belt conveyor with quick-change idler rollers. Based on the above-described belt conveyor idler roller set with quick-change idler rollers, the replacement method includes: S1: Disconnect the inner support, including the roller main seat, from the outer support, so that the inner support can slide freely within the outer support; S2: Disconnect the connecting ear plate of the support base from the side bracket, so that the flip roller seat rotates downward along the hinge point with the roller main seat and is stored in the receiving space of the side bracket. S3: Pull the inner support laterally from the outer support to the selected side, so that the flipping roller seat and side support located on that side are moved out of the outer support first. S4: Continue to flip and fold the side roller seat and side support that have been removed from the outer support downwards, so that they change from the original groove support posture to the drooping folded posture, and disassemble and replace the corresponding roller. S5: According to the position of the idler roller to be replaced, continue to pull the inner bracket to the same side, so that the middle idler roller seat and the flip idler roller seat on the other side are moved out of the outer bracket in sequence. During the pulling process, the moved-out part is continuously flipped and folded downwards, and the corresponding idler roller is disassembled and replaced. S6: In reverse order, flip the inner bracket of the replaced idler roller upwards and push it back into the outer bracket. Reinstall the detachable connector between the support base and the main idler roller base, as well as the detachable connector between the inner bracket and the outer bracket.

[0016] Compared with the prior art, the belt conveyor idler group and replacement method provided by the present invention, which allows for quick replacement of idlers, have the following advantages: (1) By setting the inner support to include the main idler seat, the flip idler seat and the support seat, and making the main idler seat a multi-segment hinged foldable structure, one end of the support seat is hinged to the flip idler seat and the other end is detachably fixed to the main idler seat. When the support seat is disconnected, the flip idler seat can be flipped down along the hinge and stored, which can greatly reduce the overall height of the idler group. Thus, the idler group can be disassembled without raising the conveyor belt. At the same time, the inner support can be pulled out from the outer support from the side, and during the extraction process, the removed main idler seat and flip idler seat will be continuously flipped down and folded, so that the idler group can be quickly moved out from either side of the conveyor belt, and the extracted part always maintains the minimum space occupation. This effectively solves the problem of difficulty in quickly replacing idlers in the case of limited space on both sides and dense arrangement of adjacent idler groups.

[0017] (2) By setting the main idler seat to include a middle idler seat and a side support, and making the side support hinged to the middle idler seat and located at the bottom of the flip idler seat with a accommodating space, the double-stage folding function of the flip idler seat is realized; when replacing the idler, not only can the flip idler seat be stored downward in the side support, but the side support that has been moved out of the outer support can also continue to be flipped downward, further compressing the lateral operating space, so that the idler group can adapt to more stringent narrow space conditions.

[0018] (3) By opening multiple slots arranged at intervals along the width direction at both ends of the flipping idler seat and the middle idler seat, the idler can be installed obliquely by selecting slots at different positions. When the conveyor belt runs off track, the correction function can be achieved without replacing the special correction idler, which significantly improves the working condition adaptability and operation stability of the idler group.

[0019] (4) By setting multiple sets of mounting holes along the length of the side bracket, the connecting ear plate can be fixedly connected to the mounting holes at different positions, thereby realizing flexible adjustment of the support angle of the flipping idler seat, and thus changing the groove angle of the idler group to adapt to different conveying needs; at the same time, the overall structure is compact and similar in size to the conventional fixed idler group, and can be directly replaced without modifying the existing conveyor frame, which has good versatility and promotion value. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a belt conveyor idler group with quick-change idlers according to the present invention. Figure 2 This is a schematic diagram of the installation of the inner and outer supports of a belt conveyor roller assembly with quick-change rollers according to the present invention. Figure 3 This is a schematic diagram of the internal support structure of a belt conveyor idler group with quick-change idler rollers according to the present invention. Figure 4This is a schematic diagram of the idler main seat structure of a belt conveyor idler group with quick-change idler rollers according to the present invention. Figure 5 This is a schematic diagram of the external support structure of a belt conveyor roller assembly with quick roller replacement according to the present invention. Figure 6 This is a schematic diagram of the first disassembly process of a belt conveyor idler group with quick-change idler rollers according to the present invention. Figure 7 This is a schematic diagram of the second disassembly process of a belt conveyor idler assembly with quick-change idlers according to the present invention. Figure 8 This is a flowchart illustrating the steps of a method for replacing idler rollers in a belt conveyor according to the present invention.

[0021] In the diagram: 1. Outer support; 11. Connecting base plate; 12. Side baffle; 13. Support boss; 2. Inner support; 201. Slot; 202. Mounting hole; 21. Main idler seat; 211. Middle idler seat; 212. Side support; 22. Tilting idler seat; 23. Support seat; 231. Support plate; 232. Connecting ear plate; 3. Idler; 4. Connecting piece. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0023] In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention based on the specific circumstances.

[0024] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of the present invention.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0026] Embodiments of the present invention are described in detail below, examples of which are illustrated 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 intended to explain the present invention, and should not be construed as limiting the present invention.

[0027] The following disclosure provides numerous different embodiments or examples for implementing various structures of the invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the invention. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. Additionally, examples of various specific processes and materials are provided in this invention; however, those skilled in the art will recognize the applicability of other processes and / or the use of other materials.

[0028] Please see Figure 1-5 The present invention provides a belt conveyor idler assembly with quick-change idler rollers, including an outer support 1, an inner support 2 and idler rollers 3.

[0029] like Figure 1-2As shown, the outer support 1 is fixedly installed on the frame of the belt conveyor; the inner support 2 includes a roller main seat 21, a tilting roller seat 22, and a support seat 23; the roller main seat 21 is slidably disposed inside the outer support 1 and detachably connected to it. The roller main seat 21 is a multi-segment hinged foldable structure, and at least one roller 3 is installed in the middle of the roller main seat 21; the tilting roller seat 22 includes two sets, which are symmetrically disposed at both ends inside the roller main seat 21. One end of each set of tilting roller seats 22 is hinged to the roller main seat 21, and the other end extends in a direction away from the roller main seat 21. At least one roller 3 is installed on each set of tilting roller seats 22; the support seat 23 includes two sets, which are respectively disposed at opposite ends of the two sets of tilting roller seats 22. One end of each set of support seats 23 is hinged to the corresponding tilting roller seat 22, and the other end is detachably connected to the roller main seat 21.

[0030] Specifically, during normal operation, the support base 23 of the idler assembly is fixedly connected to the main idler base 21, ensuring that the flipping idler base 22 maintains a stable groove-shaped support posture. When the idler needs to be replaced, the operator only needs to disconnect the detachable connection between the support base 23 and the main idler base 21, allowing the flipping idler base 22 to be flipped downwards along the hinge and stored, significantly reducing the overall height of the idler assembly. This eliminates the need to raise the conveyor belt for disassembly. Simultaneously, since the inner support 2 can slide within the outer support 1, the operator can laterally pull the inner support 2 out of the outer support 1. Furthermore, because the flipping idler base 22 has already been... The downward flipping and folding design significantly reduces the overall height of the inner support 2, creating ample clearance between the upper part and the conveyor belt during the pulling process. Simultaneously, the hinged design of the flipping idler seat 22 allows it to continue flipping downwards to a perpendicular position to the ground after being pulled out, in conjunction with the multi-segment hinged foldable idler main seat 21. This solves the problem of limited space on both sides, making it difficult to quickly replace idlers. More importantly, because the flipping idler seat 22 is symmetrically positioned at both ends of the idler main seat 21, operators can choose to pull and disassemble it from either side of the conveyor belt depending on the available space, greatly improving operational flexibility.

[0031] In some embodiments, such as Figure 3-4 As shown, the main idler seat 21 includes a central idler seat 211 and side supports 212. At least one idler 3 is installed in the middle of the central idler seat 211. Two sets of flipping idler seats 22 are respectively hinged to both ends of the central idler seat 211. The side supports 212 include two sets, which are respectively located at both ends of the central idler seat 211. One end of each set of side supports 212 is hinged to the central idler seat 211, and the other end extends outward along the length direction of the main idler seat 21. Each set of side supports 212 is located at the bottom of the corresponding flipping idler seat 22 and has a space for the flipping idler seat 22 to flip downward along the hinge.

[0032] Specifically, by further defining the idler main seat 21 as a structure including a central idler seat 211 and a side support 212, and by hinged the side support 212 to the central idler seat 211 while being located at the bottom of the flip idler seat 22 and having a receiving space, the double-stage folding function of the flip idler seat 22 is realized. When changing the idler, not only can the flip idler seat 22 be stored downward in the receiving space of the side support 212, but the side support 212 that has been removed from the outer support 1 can also continue to be flipped downward. This double-stage folding design further compresses the lateral operating space, enabling the idler group to adapt to more demanding narrow space conditions, such as in the conveyor belt receiving section where the idler group is arranged in a very dense manner, and still achieves quick replacement.

[0033] In some embodiments, such as Figure 2 As shown, slots 201 are respectively provided at both ends of the flip roller seat 22 and the middle roller seat 211, and the two ends of the roller 3 are respectively rotated and locked into the corresponding slots 201. At the same time, there are multiple slots 201, which are arranged at intervals along the width direction of the flip roller seat 22 or the middle roller seat 211. By selecting different slots 201 to install the roller 3, the roller 3 can be installed at an angle to correct the belt deviation.

[0034] Specifically, by opening multiple slots 201 spaced apart along the width direction at both ends of the flipping idler seat 22 and the middle idler seat 211, the idler 3 can be installed obliquely by selecting different positions of the slots 201. When the conveyor belt deviates during operation, maintenance personnel can move one end of the idler 3 forward and the other end backward according to the direction of deviation, so that the idler 3 is at a slight angle relative to the running direction of the conveyor belt, thereby generating a lateral thrust to correct the deviation of the conveyor belt. This design can achieve the deviation correction function without replacing the special correction idler, which significantly improves the working condition adaptability and running stability of the idler group, while reducing the types of spare parts and maintenance costs.

[0035] In some embodiments, such as Figure 3 As shown, the support base 23 includes a support plate 231 and a connecting ear plate 232. One end of the support plate 231 is hinged to the end of the flip roller seat 22 away from the roller main seat 21. The connecting ear plate 232 includes two sets, which are symmetrically arranged on both sides of the end of the support plate 231 away from the flip roller seat 22. The two sets of connecting ear plates 232 are in contact with the inner walls of the corresponding side brackets 212 and are detachably connected to the side brackets 212.

[0036] Specifically, the support plate 231 of the support base 23 is hinged to the tilting idler seat 22, and the connecting ear plate 232 is attached to the inner walls of both sides of the side bracket 212, forming a stable connection base. This design allows the support base 23 to form a triangular support structure together with the tilting idler seat 22 and the main idler seat 21 in the working state, ensuring the stability of the idler group's operation. At the same time, the setting of the connecting ear plate 232 being attached to the inner wall of the side bracket 212 makes full use of the internal space of the side bracket 212, making the overall structure more compact and avoiding the occupation of space on both sides by additional protruding parts, further improving the adaptability of the idler group in narrow spaces.

[0037] In some embodiments, such as Figure 2-3 As shown, a belt conveyor idler assembly with quick-change idlers also includes a connector 4. The connector 4 can use conventional fasteners such as bolts, pins, and quick-release pins, preferably a combination of bolts and nuts, which ensures the reliability of the connection and facilitates quick assembly and disassembly. The side bracket 212 has mounting holes 202, and the connecting ear plate 232 is detachably connected to the mounting holes 202 through the connector 4. At the same time, the mounting holes 202 include multiple sets. The ear plate 232 rotates along the hinge through the support plate 231 and selects different positions of the mounting holes 202 for fixed connection to adjust the support angle of the flip idler seat 22, thereby changing the trough angle of the idler assembly.

[0038] Specifically, the connecting ear plate 232 and the side support 212 are detachably fixedly connected by the connector 4. When the idler needs to be replaced, only the connector 4 needs to be removed to separate the support 23 from the side support 212, which is simple and quick to operate. At the same time, by setting multiple sets of mounting holes 202 along the length of the side support 212, the connecting ear plate 232 can be fixedly connected to the mounting holes 202 at different positions, thereby realizing flexible adjustment of the support angle of the flip idler seat 22. For example, when it is necessary to convey materials of different properties, the support angle of the flip idler seat 22 can be adjusted by changing the fixed position of the connecting ear plate 232, thereby changing the trough angle of the idler group to adapt to different conveying requirements, such as adjusting from 20° to 35° or 45°. This design not only improves the versatility and adaptability of the idler group, but also realizes multi-level angle adjustment through simple hole selection. The trough angle adjustment can be completed without replacing any parts, which significantly improves the convenience of use.

[0039] In some embodiments, such as Figure 5As shown, the outer support 1 includes a connecting base plate 11 and side baffles 12. The connecting base plate 11 is fixedly installed on the frame of the belt conveyor. There are two side baffles 12, which are parallel and spaced apart on the connecting base plate 11. A slide is formed between the two side baffles 12 for sliding assembly of the idler roller main seat 21. At the same time, the outer support 1 also includes a support boss 13. There are two sets of support bosses 13, which are respectively arranged along the length direction on the inner bottom of the two side baffles 12, for supporting the idler roller main seat 21 and slidingly engaging with it.

[0040] Specifically, by setting up the connecting base plate 11 and the side baffle 12, a slide rail structure is formed for the main idler seat 21 to slide, allowing the inner support 2 to slide smoothly within it. At the same time, the side baffle 12 has corresponding connecting holes at the mounting holes, which facilitates the disassembly and assembly of the support seat 23. The setting of the support boss 13 further optimizes the sliding fit effect, not only playing a supporting role, but also reducing the sliding contact area, making the pulling operation more labor-saving. More importantly, the overall outer support 1 has a compact structure and is similar in size to conventional fixed idler sets. It can be directly replaced without any modification to the existing conveyor frame, which has good versatility and promotion value, reducing the equipment upgrade cost for users.

[0041] Please see Figure 6-8 The present invention also provides a method for replacing idler rollers of a belt conveyor with quick-change idler rollers. Based on the above-described belt conveyor idler roller set with quick-change idler rollers, the replacement method includes: S1: Disconnect the inner support, including the roller main seat 21, from the outer support 1, so that the inner support 2 can slide freely within the outer support 1.

[0042] The operator first removes the fixed connecting parts between the inner support 2 and the outer support 1. These connecting parts can be fasteners such as bolts, pins, or quick-release pins. After the connection is removed, the main support 21 of the idler roller is no longer constrained by the outer support 1 and can slide freely in the slide formed by the side baffle 12, preparing for the subsequent pull-out operation. This step is a prerequisite for replacing the idler roller and ensures that the inner support 2 can be switched from the working position to the movable state.

[0043] S2: Disconnect the connecting ear plate 232 of the support base 23 from the side bracket 212, so that the flipping roller base 22 rotates downward along its hinge with the roller main base 21 and is stored in the receiving space of the side bracket 212.

[0044] The operator removes the connecting piece 4 between the connecting ear plate 232 and the side bracket 212, separating the support seat 23 from the side bracket 212. At this time, the support seat 23 no longer supports and fixes the tilting idler seat 22. After the tilting idler seat 22 is unrestrained, it can rotate freely downward along its hinge point with the idler main seat 21 and finally be stored in the accommodating space at the bottom of the side bracket 212. This action changes the tilting idler seat 22, which was originally in a trough-shaped support posture, into a lowered posture, which can greatly reduce the overall height of the idler group. Therefore, the idler group can be disassembled without raising the conveyor belt, and subsequent pulling operations can be carried out.

[0045] S3: Pull the inner support 2 laterally from the outer support 1 to the selected side, so that the flipping roller seat 22 and the side support 212 located on that side are moved out of the outer support 1 first.

[0046] Based on the available space, the operator selects the left or right side of the conveyor belt as the operating side. Holding the appropriate part of the side bracket 212 or the idler main seat 21, the operator pulls the inner bracket 2 laterally toward the selected side. Since the flip idler seat 22 has been lowered, its height is lower than the upper edge of the side baffle 12 of the outer bracket 1, so it can move outward smoothly through the slide. In the initial stage of pulling, the flip idler seat 22 located on the operating side and the side bracket 212 hinged to it first move out of the outer bracket 1 and are exposed to the external space on the side of the conveyor belt.

[0047] S4: Continue to flip and fold the side roller seat 22 and side support 212 that have been removed from the outer support 1 downwards, so that they change from the original groove support posture to the drooping folded posture, and disassemble and replace the corresponding roller 3.

[0048] like Figure 6 As shown, after the tilting idler seat 22 and the side bracket 212 on the operating side are completely removed from the outer bracket 1, the operator can manually continue to tilt them downwards, so that the side bracket 212 rotates downwards along its hinge point with the middle idler seat 211, and the tilting idler seat 22 also droops further, forming a folded posture. This action greatly reduces the space occupied by the pulled-out part in the horizontal direction, avoiding interference with adjacent idler groups or the side wall of the conveyor frame. At this time, the operator can disassemble and replace the idler 3 installed on the tilting idler seat 22 on this side. When disassembling, simply remove the two ends of the idler 3 from the slot 201.

[0049] S5: Based on the position of the roller 3 to be replaced, continue to pull the inner bracket 2 to the same side, so that the middle roller seat 211 and the flip roller seat 22 on the other side are moved out of the outer bracket 1 in sequence. During the pulling process, the moved-out parts are continuously flipped and folded downwards, and the corresponding roller 3 is disassembled and replaced.

[0050] If only the idler roller on the operating side needs to be replaced, the reset step can be directly entered after completing S4; if the idler roller on the middle idler roller seat 211 or the idler roller on the other side flip idler roller seat 22 needs to be replaced, the operator continues to pull the inner bracket 2 to the same side; Figure 7 As shown, as the conveyor belt is pulled out, the middle idler seat 211 first moves out of the outer support 1. The operator can then flip it down to free up space and disassemble and replace the idler 3 installed in the middle. As the conveyor belt continues to be pulled out, the flip idler seat 22 and the side support 212 on the other side also move out of the outer support 1. They are also flipped down and folded down, and the idler 3 on them are then disassembled and replaced. Throughout the entire pulling process, all the parts that have been moved out remain in a downward folded position, so that all the idlers that need to be replaced are exposed in turn in the narrow space on the side of the conveyor belt, and the operator can replace them one by one.

[0051] S6: In reverse order, flip the inner bracket 2 of the replaced idler roller 3 upwards and reset it, and push it back into the outer bracket 1. Reinstall the detachable connector 4 between the support seat 23 and the main idler roller seat 21, as well as the detachable connector between the inner bracket 2 and the outer bracket 1.

[0052] After the idler rollers are replaced, the operator first flips the outermost tilting idler seat 22 and the side bracket 212 upwards to restore them to their initial position, and then pushes them back into the outer bracket 1. Next, the middle idler seat 211 is flipped upwards to reset and pushed back. Finally, the other side tilting idler seat 22 and the side bracket 212 are flipped upwards to reset and pushed back. After the inner bracket 2 is completely reset, the connecting piece 4 between the connecting ear plate 232 and the side bracket 212 is reinstalled, so that the support seat 23 and the main idler seat 21 are fixedly connected again, forming a stable triangular support structure. At the same time, the fixing connecting piece between the inner bracket 2 and the outer bracket 1 is reinstalled to lock the main idler seat 21 in the working position. At this point, the entire replacement process is completed, and the idler roller group can be put back into operation.

[0053] In summary, by adopting a progressive operation process of "lowering first and then pulling out, pulling out and folding at the same time", the replacement of idlers does not require raising the conveyor belt or disassembling peripheral components such as baffles. Only one person is needed to complete all operations in a confined working condition with limited space on both sides and densely arranged adjacent idler groups. This significantly improves maintenance efficiency, shortens downtime, and reduces the labor intensity and safety risks of operators.

[0054] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A belt conveyor idler assembly with quick-change idlers, characterized in that, It includes an outer support (1), an inner support (2), and a roller (3), wherein, The outer support (1) is fixedly installed on the frame of the belt conveyor; The inner support (2) includes a roller main seat (21), a tilting roller seat (22), and a support seat (23). The main support of the roller (21) is slidably disposed inside the outer bracket (1) and detachably connected thereto. The main support of the roller (21) is a multi-segment hinged foldable structure. At least one roller (3) is installed in the middle of the main support of the roller (21). The flip roller seat (22) includes two sets, which are symmetrically arranged at both ends inside the roller main seat (21). One end of each set of the flip roller seat (22) is hinged to the roller main seat (21), and the other end extends in a direction away from the roller main seat (21). At least one roller (3) is installed on each set of the flip roller seat (22). The support base (23) includes two sets, which are respectively located at opposite ends of the two sets of the flip roller seats (22). One end of each set of the support base (23) is hinged to the corresponding flip roller seat (22), and the other end is detachably connected to the roller main seat (21).

2. A belt conveyor idler assembly with quick-change idlers according to claim 1, characterized in that, The idler main seat (21) includes a central idler seat (211) and a side support (212), wherein, At least one roller (3) is installed in the middle of the central roller seat (211), and the two sets of the flip roller seats (22) are respectively hinged to the two ends of the central roller seat (211); The side brackets (212) include two sets, which are respectively located at both ends of the central idler seat (211). One end of each set of side brackets (212) is hinged to the central idler seat (211), and the other end extends outward along the length direction of the main idler seat (21). Each set of side brackets (212) is located at the bottom of the corresponding flipping idler seat (22) and has a space for the flipping idler seat (22) to flip downward along the hinge.

3. A belt conveyor idler assembly with quick-change idlers according to claim 2, characterized in that, The two ends of the flipping roller seat (22) and the middle roller seat (211) are respectively provided with slots (201), and the two ends of the roller (3) are respectively rotated and locked in the corresponding slots (201).

4. A belt conveyor idler assembly with quick-change idlers according to claim 3, characterized in that, The slots (201) include multiple slots, which are arranged at intervals along the width direction of the flip roller seat (22) or the middle roller seat (211). By selecting different slots (201) to install the rollers (3), the rollers (3) can be installed at an angle to correct the belt deviation.

5. A belt conveyor idler assembly with quick-change idlers according to claim 2, characterized in that, The support base (23) includes a support plate (231) and a connecting lug plate (232), wherein, One end of the support plate (231) is hinged to the end of the flipping roller seat (22) away from the roller main seat (21); The connecting ear plate (232) includes two sets, which are symmetrically arranged on both sides of the end of the support plate (231) away from the flip roller seat (22). The two sets of connecting ear plates (232) are attached to the inner walls of the corresponding side brackets (212) and are detachably connected to the side brackets (212).

6. A belt conveyor idler assembly with quick-change idlers according to claim 5, characterized in that, It also includes connectors (4); The side bracket (212) has a mounting hole (202), and the connecting ear plate (232) is detachably connected to the mounting hole (202) via a connector (4).

7. A belt conveyor idler assembly with quick-change idlers according to claim 6, characterized in that, The mounting holes (202) include multiple sets. The ear plate (232) can be rotated along the hinge by the support plate (231) to select different positions of the mounting holes (202) for fixed connection, so as to adjust the support angle of the flip roller seat (22) and thus change the groove angle of the roller group.

8. A belt conveyor idler assembly with quick-change idlers according to claim 1, characterized in that, The outer support (1) includes a connecting base plate (11) and a side baffle (12), wherein, The connecting base plate (11) is fixedly installed on the frame of the belt conveyor; The side baffles (12) include two side baffles (12) which are parallel and spaced apart on the connecting base plate (11) and form a slide between the two side baffles (12) for sliding assembly of the roller main seat (21).

9. A belt conveyor idler assembly with quick-change idlers according to claim 8, characterized in that, The outer bracket (1) also includes a support boss (13). The support boss (13) includes two sets, which are respectively arranged along the length direction on the inner bottom of the two side baffles (12) for supporting the roller main seat (21) and slidingly engaging with it.

10. A method for replacing idler rollers in a belt conveyor with quick-change idler rollers, characterized in that, Based on the belt conveyor idler assembly with quick-change idlers according to any one of claims 1-9, the replacement method includes: S1: Disconnect the inner support, including the roller main seat, from the outer support, so that the inner support can slide freely within the outer support; S2: Disconnect the connecting ear plate of the support base from the side bracket, so that the flip roller seat rotates downward along the hinge point with the main roller seat and is stored in the receiving space of the side bracket. S3: Pull the inner support laterally from the outer support to the selected side, so that the corresponding flipping roller seat and side support are moved out of the outer support first. S4: Continue to flip and fold the rotating idler seat and side support that have been removed from the outer support downwards, so that they change from the original grooved support posture to the drooping folded posture, and disassemble and replace the corresponding idler. S5: Based on the location where the idler needs to be replaced, continue to pull the inner bracket to the same side, so that the middle idler seat and the flip idler seat on the other side are moved out of the outer bracket in sequence. During the pulling process, the moved-out parts are continuously flipped and folded downwards, and the corresponding idler is disassembled and replaced. S6: In reverse order, flip the inner bracket of the replaced idler roller upwards and push it back into the outer bracket. Reinstall the detachable connector between the support base and the main idler roller base, as well as the detachable connector between the inner bracket and the outer bracket.

Images