A redirection roller set for a traction belt

Abstract

The application discloses a redirection roller set for traction belts, and relates to the technical field of belt conveying equipment; the roller set comprises a base and at least three groups of adjustable redirection roller units arranged along a belt redirection path; each group of units comprises a flat roller, four adjustable side rollers and two auxiliary rollers, and the flat roller, the four adjustable side rollers and the two auxiliary rollers jointly form a guide channel. In the direction from the belt inlet to the belt outlet, the inclination angles of the adjustable side rollers of each group gradually increase, and the convergence angles of the auxiliary rollers gradually increase synchronously, so that the belt is guided to complete large-angle redirection along a smooth circular arc. The adjustable side rollers are horizontally telescopic and adjustable, and can be adapted to belt conveyors with different widths. The application can replace the original three groups of standard rollers in a whole, does not need to damage the original rack, solves the problem that it is difficult to replace the belt traction when the yard space is insufficient, effectively reduces the belt bending damage, and has the advantages of strong universality, convenient disassembly and assembly and reliable operation.

Description

Technical Field

[0001] This invention relates to the field of belt conveyor equipment technology, and in particular to a multi-stage redirecting idler group for belt replacement traction operations, specifically applicable to long-distance conveyor belt replacement traction in scenarios with limited operating space such as dockyards and bulk cargo ports. Background Technology

[0002] Belt conveyors are core equipment for continuous material transfer in port terminals, bulk cargo yards, and other similar settings. Conveyor belts operate under high loads for extended periods, making them prone to wear, aging, and tearing, thus requiring periodic replacement. The current conventional belt replacement process involves first horizontally disconnecting the old belt to be replaced, then using a tractor to pull it axially along the conveyor's axis, gradually removing it from the idler frame while simultaneously pulling the new belt into place. This operation requires a long straight-line passage along the belt direction for the tractor to travel continuously. However, in actual port yard conditions, to improve storage utilization, stacks are typically densely packed with high inventory levels, generally lacking sufficient straight-line traction channels. Even if there are empty stacks in the yard, the location of belt disconnection is limited by factors such as the total belt length and joint position, making it difficult to precisely correspond to the empty area, thus hindering the implementation of a straight-line traction solution.

[0003] To address the aforementioned issues, the industry has developed a technical solution involving adjusting the traction direction using redirecting idlers. This involves replacing a set of large-angle grooved idlers at the belt redirection point. The deepened groove structure supports the deflected belt, causing the traction direction to change, thus allowing traction operations to be carried out using the lateral clearance. Some improved solutions also add a limiting roller above the grooved idlers to prevent the belt from slipping upwards.

[0004] However, the existing redirecting idler solutions mentioned above still have many shortcomings in practical applications: First, using only a single set of idlers to achieve centralized redirection results in a single-point large-angle bend in the belt at this location. The small bending radius and concentrated bending stress can easily cause fatigue damage to the steel wire rope core or canvas layer inside the belt, significantly shortening the remaining service life of the belt. This is especially unsuitable for high-strength, wide-bandwidth heavy-duty conveyor belts. Second, the idler angle is a fixed value, which can only adapt to specific redirection angles. It is difficult to flexibly adjust the redirection requirements within the range of 30° to 90° according to the empty space on site, resulting in poor versatility and high difficulty in on-site debugging. Third, installation requires destructive modifications such as welding and drilling to the original idler frame. The disassembly and assembly process is cumbersome and inefficient. Moreover, the tooling is difficult to adapt to belt conveyors with different bandwidth specifications, resulting in poor reusability across projects and high operating costs. Fourth, relying solely on the support of the trough idler for lateral limiting and the simple upper limiting structure still pose a risk of belt slippage and detachment during large-angle redirection, resulting in insufficient operational reliability. Summary of the Invention

[0005] This invention provides a redirecting idler assembly for traction belts, which solves the aforementioned technical problems.

[0006] To address the aforementioned technical problems, this invention provides a reversing idler assembly for a traction belt, comprising a base and adjustable reversing idler units mounted on the base. Each adjustable reversing idler unit includes a flat idler, adjustable side idlers symmetrically arranged on both sides of the flat idler, and auxiliary idlers positioned above the adjustable side idlers. The auxiliary idlers on both sides are arranged in an inward V-shape, forming a guide channel for the belt to pass through together with the flat idler and the adjustable side idlers. At least three sets of adjustable reversing idler units are provided, all arranged sequentially along the belt reversing path. Along the direction from the inlet to the outlet of the belt entering the reversing path, the inclination angle of the adjustable side idlers of each set of adjustable reversing idler units to the horizontal plane gradually increases, and the inward angle of the auxiliary idlers of each set of adjustable reversing idler units gradually increases, so that the deflection angle of each guide channel gradually increases, guiding the belt to complete a large-angle reversal along a smooth arc. The adjustable side roller has a horizontally adjustable structure, and its position can be adjusted along the width of the base to adapt to belt conveyor frames of different widths.

[0007] Furthermore, the adjustable side roller includes a side mounting plate, a side roller body, a telescopic plate, and a locking assembly; the side end face of the base is provided with a telescopic groove extending in the width direction, and the telescopic plate is slidably inserted into the telescopic groove; the side mounting plate is inclinedly arranged above the base, and a connecting seat is fixed at its bottom. The connecting seat passes downward through the moving groove on the top surface of the base and is fixedly connected to the top surface of the telescopic plate. When the telescopic plate slides, it can drive the side mounting plate to move laterally synchronously through the connecting seat.

[0008] Furthermore, the adjustable side roller also includes a locking assembly; the top surface of the base is provided with a movable groove communicating with the telescopic groove, and the movable groove extends along the width direction of the base; the locking assembly includes a threaded post fixed to the top surface of the telescopic plate and a locking nut cooperating with the threaded post, the threaded post extending upward through the movable groove, and tightening the locking nut can lock the sliding position of the telescopic plate.

[0009] Furthermore, a first U-shaped seat is fixed to the inner side of the side mounting plate, and the side roller is rotatably mounted in the opening of the first U-shaped seat via a rotating shaft.

[0010] Furthermore, each adjustable redirecting roller unit includes four adjustable side rollers, which are arranged symmetrically in two groups on both sides of the flat roller. The two adjustable side rollers in each group are arranged back and forth along the length of the base. An auxiliary roller is provided between the two adjustable side rollers on the same side.

[0011] Furthermore, the auxiliary idler includes a support plate, a second U-shaped seat, and an auxiliary roller body; the support plate is fixedly connected between the upper part of the mounting plate of two adjustable side idlers on the same side, the second U-shaped seat is fixed to the side of the support plate facing the flat idler, and the auxiliary roller body is rotatably installed in the opening of the second U-shaped seat through a rotating shaft.

[0012] Furthermore, fixing plates are provided on both sides of the base in the width direction, and the outer ends of all telescopic plates on the same side are fixedly connected to the fixing plates on the corresponding sides; the fixing plates are provided with several bolt holes for fixed connection with the frame longitudinal beams of the belt conveyor.

[0013] Furthermore, the overall length of the idler group matches the installation length of the three standard idler groups of the belt conveyor, and it can replace the original three standard idler groups as a whole and be directly fixed to the original frame longitudinal beam through the fixing plate.

[0014] Furthermore, the flat roller includes a flat roller body and two support seats; the two support seats are symmetrically fixed to the center of the top surface of the base, and the flat roller body is rotatably mounted between the two support seats via a rotating shaft.

[0015] Furthermore, the adjustable redirecting roller unit is provided with three sets, and the adjustable side rollers along the inlet end to the outlet end have inclination angles of 35° to 40°, 45° to 55°, and 60° to 75° respectively, with a total redirection angle of up to 90°.

[0016] Compared with related technologies, the redirecting idler group for traction belts provided by the present invention has the following beneficial effects: 1. This invention provides a method that uses three sets of idler roller units arranged sequentially along the redirection path. By gradually increasing the inclination angle of the adjustable side idler rollers and the inward angle of the auxiliary idler rollers, the belt is guided to gradually complete a large-angle turn along a smooth arc. This transforms the traditional single-point concentrated bending into a multi-point continuous gradual deflection, effectively increasing the belt bending radius, significantly reducing bending stress, and avoiding fatigue damage to the steel wire rope core and canvas layer inside the belt. It is especially suitable for the replacement of heavy-duty long-distance belts and can effectively preserve the remaining service life of the belt.

[0017] 2. The present invention provides an adjustable side idler roller with a transverse telescopic adjustable structure. The telescopic plate is built-in and the side mounting plate is external. The transmission connection is achieved by the connecting seat passing through the moving groove. The structure is compact and the sliding is smooth. The distance between the two idler rollers can be flexibly adjusted according to the bandwidth of the belt conveyor. It is compatible with belt conveyors of different specifications. There is no need to customize special tooling for different bandwidths. This greatly improves the versatility and cross-project reuse capability of the device and reduces the cost of use.

[0018] 3. The present invention provides that the overall size of the device matches the installation size of the original three sets of standard idler rollers. It can be directly bolted to the original idler roller frame longitudinal beam through the fixing plates on both sides, without the need for destructive modifications such as welding or drilling to the original frame. The disassembly and assembly process is simple and convenient, and the operation deployment and withdrawal can be completed quickly, effectively shortening the downtime impact time of belt replacement operation.

[0019] 4. The present invention provides a closed guide channel structure with adjustable side rollers supporting the belt at the bottom and auxiliary rollers limiting the belt at the top. The auxiliary rollers are firmly connected between the two mounting plates, resulting in high structural rigidity. With the gradually tightening channel profile, the belt can still be completely restrained in the channel even under large-angle reversal conditions, effectively avoiding the risk of belt slippage and detachment, and significantly improving operational stability and safety. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall isometric structure of a redirecting idler group for traction belts according to the present invention; Figure 2 This is a side view of a redirecting idler assembly for a traction belt according to the present invention. Figure 3 This is a schematic diagram of the isometric structure of a single adjustable redirecting roller unit; Figure 4 A schematic diagram of an independent isometric structure for the coordination of adjustable side rollers and auxiliary rollers; Figure 5 This is a cross-sectional schematic diagram of the mating structure between the adjustable side roller and the base.

[0021] The corresponding reference numerals in the figure are as follows: 1. Base; 2. Adjustable redirecting roller unit; 21. Flat roller; 22. Adjustable side roller; 221. Moving groove; 222. Telescopic plate; 223. Locking assembly; 224. Side mounting plate; 225. First U-shaped seat; 226. Side roller body; 227. Telescopic groove; 23. Auxiliary roller; 231. Support plate; 232. Second U-shaped seat; 233. Auxiliary roller body; 3. Fixing plate. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. This embodiment is based on the technical solution of the present invention and provides a detailed implementation structure, connection relationships, and operation process; however, the scope of protection of the present invention is not limited to the following embodiments.

[0023] Example 1

[0024] See Figure 1 , Figure 2This embodiment discloses a redirecting idler group for a traction belt, including a base 1 and three adjustable redirecting idler units 2 integrated on the base 1. The three adjustable redirecting idler units 2 are arranged at equal intervals along the belt redirection path (i.e., the length direction of the base 1). The overall axial length of the device matches the standard installation spacing of the three standard trough idler groups of the belt conveyor, and it can replace the original three standard idler groups and be connected to the belt conveyor frame.

[0025] See Figure 3 Each adjustable idler roller unit 2 includes a flat idler roller 21, four adjustable side idler rollers 22, and two auxiliary idler rollers 23. The four adjustable side idler rollers 22 are divided into two groups, left and right, and are symmetrically arranged on both sides of the width direction of the flat idler roller 21. The two adjustable side idler rollers 22 in each group are aligned front and back along the length direction of the base 1. The two auxiliary idler rollers 23 are respectively arranged between the two adjustable side idler rollers 22 on the same side, and together with the flat idler roller 21 and the adjustable side idler rollers 22 below, they form a closed guide channel for the belt to pass through.

[0026] The flat idler roller 21 includes a flat roller body and two support seats. The two support seats are symmetrically welded and fixed to the middle position of the top surface of the base 1. The two ends of the flat roller body are respectively hinged to the upper part of the two support seats through rotating shafts. The axis of the flat roller body is set horizontally along the width direction of the base 1 to support the bottom middle area of ​​the conveyor belt. During traction operation, it rolls in contact with the bottom surface of the belt to reduce traction resistance.

[0027] See Figure 4 , Figure 5The adjustable side roller 22 is a laterally telescopic adjustable structure used to adapt to belt conveyors of different bandwidths. Specifically, it includes a telescopic plate 222, a side mounting plate 224, a side roller body 226, and a locking assembly 223. Telescopic grooves 227 are respectively opened on the left and right end faces of the base 1. The telescopic grooves 227 extend horizontally along the width direction of the base 1 and correspond one-to-one with the positions of the adjustable side rollers 22. The telescopic plate 222 is inserted into the telescopic groove 227 from the side of the base, slidingly engaging with the inner wall of the telescopic groove 227, and can slide back and forth along the width direction of the base. The side mounting plate 224 is inclinedly arranged above the top surface of the base 1, and a connecting seat is vertically fixed at its bottom. A movable groove 221 is opened on the top surface of the base 1, communicating vertically with the telescopic groove 227. The movable groove 221 extends along the width direction of the base. After the connecting seat passes downward through the movable groove 221, its bottom end is welded and fixed to the top surface of the outer end of the telescopic plate 222. When the telescopic plate 222 slides laterally along the telescopic groove 227, it can drive the side mounting plate 224 to move laterally synchronously through the connecting seat. The moving groove 221 simultaneously provides sliding guidance and stroke limit for the connecting seat. A first U-shaped seat 225 is fixedly connected to the plate surface of the side mounting plate 224 facing the inner side of the guide channel. The opening of the first U-shaped seat 225 faces the inner side of the channel. The two ends of the side roller 226 are hinged between the two side walls of the first U-shaped seat 225 through a rotating shaft. The side roller 226 can rotate freely around its own axis, roll in contact with the side area of ​​the belt, and provide lateral support. The locking assembly 223 includes a threaded post vertically fixed to the top surface of the telescopic plate 222 and a locking nut that mates with the threaded post. The upper end of the threaded post extends out of the moving groove 221 and extends above the top surface of the base 1. The locking nut is screwed into the extended section of the threaded post. When adjusting the width, loosen the locking nut and push the side mounting plate 224 or the outer fixing plate 3 laterally to drive the telescopic plate 222 to slide along the telescopic groove 227, and simultaneously adjust the spacing of the adjustable side rollers 22 on the left and right sides to adapt to belts of different widths; after adjusting to the target position, tighten the locking nut so that the lower end face of the locking nut presses against the top surface of the base 1, and locks the position of the telescopic plate 222 by static friction to ensure that the roller spacing remains stable during traction operation.

[0028] The auxiliary roller 23 is positioned between two adjustable side rollers 22 on the same side and specifically includes a support plate 231, a second U-shaped seat 232, and an auxiliary roller body 233. The support plate 231 is arranged along the length of the base 1, with its two ends fixedly connected to the upper parts of the side mounting plates 224 of the two adjustable side rollers 22 on the same side, moving laterally and rotating angularly synchronously with the side mounting plates 224. The second U-shaped seat 232 is fixed to the side of the support plate 231 facing the flat roller 21, with its opening angled downwards towards the center of the channel. The auxiliary roller body 233 is hinged between the two side walls of the second U-shaped seat 232 via a pivot, allowing it to rotate freely around its own axis. The auxiliary roller bodies 233 on the left and right sides are arranged in an inward V-shape, restricting the vertical movement of the belt from above and cooperating with the lower adjustable side roller 22 to form a full-circumference closed limit, preventing the belt from slipping upwards during large-angle reversals. The support plate 231 adopts a fixed installation method at both ends, which has high structural rigidity and can withstand the upward impact force when the belt deflects at a large angle, and the limiting reliability is stronger.

[0029] The configuration relationship of the multi-stage gradual reversal: along the direction from the inlet to the outlet of the belt entering the reversal path, the inclination angle of the adjustable side rollers 22 and the inward angle of the auxiliary rollers 23 of the three sets of adjustable reversal roller units 2 are all set in a progressively increasing manner, forming a continuously gradually changing arc guide path. In this embodiment, the inclination angle of the adjustable side rollers 22 of the first set of adjustable reversal roller units 2 at the inlet end to the horizontal plane is 35°, which is consistent with the groove angle of conventional production rollers, and is used to guide the belt to smoothly enter the reversal area, producing only a small initial deflection; the inclination angle of the adjustable side rollers 22 of the second set of adjustable reversal roller units 2 in the middle is increased to 50°, further increasing the deflection amplitude of the belt and completing the reversal transition; the inclination angle of the adjustable side rollers 22 of the third set of adjustable reversal roller units 2 at the outlet end is increased to 70°, which, together with the synchronous inward retraction of the auxiliary rollers 23, achieves a final total reversal angle of 90°. Correspondingly, the inward angle of the three sets of auxiliary idlers 23 increases synchronously with the tilt angle of the adjustable side idlers 22, maintaining the closure of the guide channel and ensuring that the belt remains within the containment range of the idlers at each deflection level. Through the multi-level angle gradual change structural design, the single-point concentrated large-angle bend is transformed into multi-point continuous small-angle deflection. The belt gradually turns along a smooth arc path, effectively increasing the bending radius, dispersing bending stress, and preventing fatigue damage to the steel wire rope core or canvas layer inside the belt.

[0030] See Figure 1 , Figure 2The base 1 has elongated fixing plates 3 on both sides along its width. The outer ends of all telescopic plates 222 on the same side are welded and fixed to the corresponding fixing plate 3, so that all adjustable idler rollers 22 on the same side are connected as a whole through the fixing plates 3, ensuring that the idler rollers move synchronously and have good spacing consistency when adjusting the width. Several bolt mounting holes are opened along the length of the fixing plate 3, and the positions of the mounting holes are adapted to the standard mounting hole positions of the longitudinal beam of the belt conveyor frame. During operation, after removing the original three sets of standard idler rollers, this idler roller set is hoisted into place, and the entire device can be fastened to the longitudinal beam of the original idler roller frame by passing the bolts through the mounting holes of the fixing plate 3. There is no need to make destructive modifications to the original frame such as welding or drilling, which makes disassembly and assembly convenient and does not damage the structural strength of the original equipment.

[0031] IV. Work Process and Operating Methods

[0032] The specific operation process of the multi-stage redirecting idler group described in this embodiment is as follows:

[0033] Work location selection: Based on the distribution of cargo stacks in the wharf yard, select a space in the stack that can accommodate the passage of the tractor as the traction work point, determine the required reversing angle of the belt, and select the corresponding idler roller group device with the appropriate angle level.

[0034] Bandwidth adaptation adjustment: According to the bandwidth specifications of the belt conveyor to be replaced, loosen the locking nuts of each locking component 223, push the two side fixing plates 3 to drive all the telescopic plates 222 to slide laterally in sync, adjust the spacing of the two adjustable side idlers 22 to match the belt bandwidth, and then tighten each locking nut in sequence to lock the idler spacing.

[0035] On-site installation and deployment: Remove the three sets of standard idler rollers at the corresponding work points of the belt conveyor as a whole, and hoist this idler roller set to the installation position, so that the inlet end faces the original running direction of the belt and the outlet end faces the traction direction of the stack; align the mounting holes of the fixing plate 3 with the longitudinal beam of the frame, insert bolts and tighten them to complete the device fixing.

[0036] Redirection traction operation: The disconnected old belt is inserted into the guide channel from the inlet end, and after being guided and deflected by three sets of adjustable redirection roller units 2, it is pulled out from the outlet end and connected to the tractor; the tractor is started to pull at a constant speed, and the belt smoothly completes the large-angle turn along the gradually changing arc channel. It is wrapped and constrained by the rollers throughout the process, with no risk of detachment and low bending stress.

[0037] Removal and Restoration: After the belt replacement operation is completed, remove the connecting bolts of fixing plate 3, lift the idler group away, and reinstall the original standard idler group to restore normal production of the belt conveyor. This device can be reused at other work sites or for different projects.

[0038] Example 2

[0039] The difference between this embodiment and Embodiment 1 lies in the tilt angle adjustment method of the adjustable redirecting roller group 2.

[0040] When it is necessary to change the redirection angle to adapt to different stacking layouts in the stockpile, this can be achieved by adjusting the tilt angle of the adjustable side idler 22 and the inward angle of the auxiliary idler 23 in each adjustable redirection idler roller group 2. Specifically, this is achieved by adjusting the connection angle between the side mounting plate 224 and the telescopic plate 222. An angle adjustment hinge seat is provided between the bottom of the side mounting plate 224 and the telescopic plate 222. After loosening the locking bolt of the hinge seat, the side mounting plate 224 can be rotated to the target angle, and then the locking bolt can be tightened to fix it. An angle adjustment structure is also provided between the support plate 231 of the auxiliary idler 23 and the side mounting plate 224, allowing independent adjustment of the inward angle of the auxiliary roller 233. Through the above adjustments, this device can adapt to any redirection angle requirement within the range of 30° to 90°.

[0041] Optional implementation methods

[0042] In other optional implementations, the number of adjustable redirecting roller units 2 can be set to four or five groups according to the actual redirection angle requirements, to obtain a smoother redirection curvature and further reduce belt bending damage; the inclination angle parameters of each group of rollers can be flexibly configured according to the total redirection angle, covering any redirection requirement within the range of 30° to 90°. Furthermore, this device is not only suitable for belt replacement scenarios in dockyards, but also for belt replacement operations in other belt conveyor systems with limited operating space, such as mines, power plants, and bulk cargo ports.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A redirecting idler assembly for a traction belt, comprising a base and an adjustable redirecting idler unit disposed on the base, characterized in that: The adjustable redirecting idler unit consists of three sets, which are arranged sequentially along the redirection path of the belt. Each set of adjustable redirecting idler units includes a flat idler, four adjustable side idlers, and two auxiliary idlers. The flat idler is located in the middle of the top surface of the base. The four adjustable side idlers are divided into two groups and symmetrically arranged on both sides of the width direction of the flat idler. The two adjustable side idlers in each group are arranged back and forth along the length direction of the base. The two auxiliary idlers are respectively located on the upper part of the two sets of adjustable side idlers on the same side. Along the belt entering the redirection path from the inlet to the outlet, the angle between the adjustable side rollers of each group of adjustable redirection roller units and the horizontal plane increases step by step, and the inward angle of each group of auxiliary rollers increases step by step, so as to form a guide channel with progressively increasing deflection angle.

2. A redirecting idler assembly for a traction belt according to claim 1, characterized in that, The flat roller includes a flat roller body and two support seats; the two support seats are symmetrically fixed on both sides of the middle of the top surface of the base, and the flat roller body is rotatably installed between the two support seats through a rotating shaft.

3. A redirecting idler assembly for a traction belt according to claim 1, characterized in that, The adjustable side roller includes a side mounting plate, a telescopic groove, a telescopic plate, and a locking assembly; the telescopic groove is opened on both ends of the base and extends along the width direction, and the telescopic plates of the left and right adjustable side rollers are respectively inserted into the openings of the corresponding telescopic grooves and are symmetrically slidably arranged; the top surface of the base has a moving groove communicating with the telescopic groove, and the moving groove extends along the width direction of the base; the side mounting plate is inclinedly arranged above the base, and a connecting seat is fixed at its bottom, the connecting seat passing downward through the moving groove and being fixedly connected to the top surface of the telescopic plate; The locking assembly includes a threaded post fixed to the top surface of the telescopic plate. The threaded post extends upward through the moving groove, and its extended section is threadedly connected to a locking nut. Tightening the locking nut can lock the sliding position of the telescopic plate. A first U-shaped seat is fixed on the side of the side mounting plate facing the inside of the channel. A side roller is rotatably connected to the first U-shaped seat through a rotating shaft.

4. A redirecting idler assembly for a traction belt according to claim 1, characterized in that, The auxiliary idler roller is disposed between two adjustable side idlers on the same side; the auxiliary idler roller includes a support plate, which is fixedly connected between the upper part of the mounting plate of the two adjustable side idlers on the same side, and a second U-shaped seat is fixed on the side of the support plate facing the flat idler roller, and an auxiliary roller body is rotatably connected in the second U-shaped seat through a rotating shaft.

5. A redirecting idler assembly for a traction belt according to claim 1, characterized in that, The base has fixed plates on both sides in the width direction. The outer ends of the telescopic plates of all adjustable side rollers on the same side are fixedly connected to the fixed plates on the corresponding sides. Several bolt holes are opened on both fixed plates for fixing the roller assembly to the frame longitudinal beam of the belt conveyor.

6. A redirecting idler assembly for a traction belt according to claim 5, characterized in that, The adjustable side roller can adjust the distance between the two fixed plates by sliding the telescopic plate laterally, so that the roller group can be adapted to belt conveyor frames of different widths.

7. A redirecting idler assembly for a traction belt according to claim 1, characterized in that, Of the three sets of adjustable redirecting idler units, the first set of adjustable side idlers located on the inlet side has an inclination angle of 35° to 40°, the second set of adjustable side idlers located in the middle has an inclination angle of 45° to 55°, and the third set of adjustable side idlers located on the outlet side has an inclination angle of 60° to 75°.

8. A redirecting idler assembly for a traction belt according to claim 1, characterized in that, The three adjustable redirecting roller units installed on the base can replace the original three standard roller sets on the belt conveyor to achieve redirecting traction operations with the traction direction perpendicular to the belt conveyor's transmission direction.

9. A redirecting idler assembly for a traction belt according to claim 1, characterized in that, The three sets of adjustable redirecting idler units installed on the base can be selectively installed in any section of the belt conveyor frame according to the empty space in the stockpile. After replacing the three sets of standard idler sets in the corresponding positions, they can form a redirecting traction station.

10. A redirecting idler assembly for a traction belt according to any one of claims 1 to 9, characterized in that, The three sets of adjustable redirecting roller units can achieve belt redirection traction within a range of 30° to 90°.

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