Portable tool for mounting and dismounting carrier roller

Abstract

The invention relates to the technical field of carrier roller dismounting, and particularly discloses a portable tool for mounting and dismounting a carrier roller, comprising: a bearing element for forming fitting support with a conveyor belt; the supporting element is used for forming stable connection with a conveyor rack; the telescopic adjusting element is connected between the bearing element and the supporting element, the telescopic adjusting element comprises a first adjusting part, a second adjusting part and a driving part, the first adjusting part, the second adjusting part and the driving part move relatively, and the driving part drives the first adjusting part and the second adjusting part to move relatively. The distance between the bearing element and the supporting element is adjusted, the traditional carrier roller replacement operation needing four-person cooperation is simplified into double-person or even single-person operation through a thread transmission structure of the telescopic adjusting element, and the whole process of tool installation, conveying belt lifting and carrier roller disassembly and assembly can be completed only by 1-2 operators.

Description

Technical Field

[0001] This invention relates to the field of idler roller disassembly technology, and in particular to a portable tool for installing and removing idler rollers. Background Technology

[0002] Idler rollers, as the core load-bearing components of belt conveyors, are widely used in material conveying systems in mining, power generation, metallurgy, and chemical industries. Their main function is to support the conveyor belt, reduce its running resistance, and ensure smooth transmission. During the long-term operation of belt conveyors, idler rollers need to be replaced periodically due to wear, dust erosion, and bearing failure to prevent belt misalignment, accelerated wear, or even shutdown. Therefore, idler roller replacement is a crucial maintenance step to ensure the continuous and stable operation of belt conveyors.

[0003] Currently, the industry generally adopts a traditional manual operation mode for replacing idler rollers. This mode relies on common tools such as jacks and crowbars. This operation mode has significant drawbacks. The replacement method requires at least four operators to work together: two people operate jacks to lift the conveyor belt, one person uses a crowbar to fix the position of the idler roller, and another person completes the removal and installation of the idler roller. The whole process is cumbersome and difficult to coordinate. Moreover, due to the limited precision of the tools, the replacement of a single idler roller usually takes more than 15 minutes. In the case of multiple idler roller failures on the conveyor, it can easily lead to long-term shutdown of the production line, which seriously affects production efficiency.

[0004] The installation space for idlers on belt conveyors is usually quite small, while tools such as jacks and crowbars are large and have a fixed operating stroke. It is difficult to accurately locate the support point in a small space, which not only increases the difficulty of operation, but also makes it easy for tools to collide with the conveyor belt and frame, further extending the operation time.

[0005] On the one hand, jacks have poor support stability in confined spaces. If the force point shifts, they are prone to slipping, which may lead to safety accidents such as crushing or crushing the operator's hands. On the other hand, when prying idlers or conveyor belts, pry bars are prone to slipping due to uneven force, which may scratch the surface of the conveyor belt or hit the idler bearing seat, causing damage to the conveyor belt and secondary damage to the idler, increasing equipment maintenance costs.

[0006] Traditional replacement methods rely heavily on the experience of operators, requiring them to precisely control the lifting speed of the jacks and the angle of force applied to the crowbars. Inexperienced personnel are prone to operational errors, leading to rework or safety accidents, which is not conducive to the standardized operation management of the maintenance team. Summary of the Invention

[0007] Therefore, the technical problem to be solved by the present invention is that the roller replacement tool has problems such as high labor cost, low efficiency, poor space adaptability, prominent safety risks and high operation threshold.

[0008] The above-mentioned technical problems are solved by the following technical solution: The present invention proposes a portable tool for installing and removing idlers, which includes a support element for forming a close fit support with the conveyor belt; Supporting elements, said supporting elements being used to form a stable connection with the conveyor frame; and A telescopic adjustment element is connected between the load-bearing element and the support element. The telescopic adjustment element includes a first adjustment member, a second adjustment member, and a driving member that move relative to each other. The driving member adjusts the distance between the load-bearing element and the support element by driving the relative movement of the first adjustment member and the second adjustment member.

[0009] In a preferred embodiment of the portable tool for installing and removing idler rollers according to the present invention: the bearing element includes an arc-shaped support plate, the top of which is provided with a slot for placing a locking block, wherein the locking blocks are uniformly arranged along the length direction of the arc-shaped support plate.

[0010] In a preferred embodiment of the portable tool for installing and removing idler rollers according to the present invention: overflow plates are installed on both sides of the locking block, and a sliding rod is installed at the bottom end of the overflow plate, the bottom end of the sliding rod extending into the interior of the fixed cylinder.

[0011] In a preferred embodiment of the portable tool for installing and removing idler rollers according to the present invention: the side wall of the fixed cylinder is connected to the arc-shaped support plate, and the side wall of the sliding rod is fitted with a telescopic spring.

[0012] In a preferred embodiment of the portable tool for installing and removing idlers according to the present invention: the support element includes a connecting rod disposed at the bottom end of the telescopic adjustment element, the connecting rod being Y-shaped, and a mounting plate disposed at the end of the connecting rod away from the telescopic adjustment element, the mounting plate being used to form a stable connection with the conveyor frame.

[0013] In a preferred embodiment of the portable tool for installing and removing idler rollers according to the present invention: the first adjusting member includes a lower lead screw disposed at the top end of the connecting rod, and an upper lead screw is disposed at the top end of the lower lead screw.

[0014] In a preferred embodiment of the portable tool for installing and removing idler rollers according to the present invention: the side walls of the upper lead screw and the lower lead screw are fitted with adjusting sleeves, and the rotation of the adjusting sleeves can drive the upper lead screw and the lower lead screw to move in opposite directions.

[0015] In a preferred embodiment of the portable tool for installing and removing idler rollers according to the present invention: the second adjusting member includes a sliding block disposed at the top end of the upper lead screw, the sliding block being T-shaped and located inside a sliding groove.

[0016] In a preferred embodiment of the portable tool for installing and removing idler rollers according to the present invention: a limiting plate is installed at the bottom end of the arc-shaped support plate, the limiting plate is symmetrically arranged with respect to the central axis of the arc-shaped support plate, the distance between the two limiting plates and the arc-shaped support plate forms a sliding groove, and the side wall of the arc-shaped support plate is provided with fixing screws for fixing the sliding block to the arc-shaped support plate.

[0017] In a preferred embodiment of the portable tool for installing and removing idler rollers according to the present invention: the driving component includes an insert rod disposed between the upper lead screw and the lower lead screw, the rotation of the adjusting sleeve is driven by the insert rod, and the side wall of the arc-shaped support plate is provided with a chain buckle.

[0018] The beneficial effects of this invention are as follows: By using the threaded transmission structure of the telescopic adjustment element, the traditional idler replacement operation that requires four people to work together is simplified to a two-person or even single-person operation. Only 1-2 operators are needed to complete the entire process of tool installation, conveyor belt lifting and lowering, and idler disassembly and assembly, directly reducing manpower input by 50%-75%. At the same time, by using the adjustment sleeve to drive the upper and lower screws to move rapidly in opposite directions, the conveyor belt lifting and adjustment time is shortened to tens of seconds, and the total replacement time of a single idler is controlled within 2 minutes. Compared with the traditional operation time of more than 15 minutes, the efficiency is improved by more than 6 times, effectively reducing the downtime of the belt conveyor and reducing the production capacity loss caused by equipment maintenance on the production line.

[0019] The tool features a compact and modular design with simple connections between components and no redundant structures. Its total weight does not exceed 5kg, making it easy for a single person to carry to confined working spaces such as the bottom or side of a conveyor. The load-bearing components adapt to the curvature of the conveyor belt through an arc-shaped support plate. Combined with the angle adjustment structure of the sliding block and sliding groove, it can flexibly adapt to different installation scenarios for upper, lower, and side idlers with different inclination angles. It eliminates the need for large tools such as jacks and crowbars to fix the operating space, completely solving the problem of traditional tools being difficult to position and exert force in confined areas. It is compatible with the frame structure and idler layout of various belt conveyors.

[0020] The curved support plate has chain buckles on its side wall, which can form a secondary fixation with the conveyor frame to prevent tools from falling due to force displacement. The load-bearing element flexibly contacts the conveyor belt through the clamp block, and the overflow plate works with the telescopic spring to buffer the pressure, preventing metal parts from directly scratching the surface of the conveyor belt, and at the same time preventing equipment impact damage caused by tool slippage during the disassembly and assembly of the idler roller. The support element adopts a combination structure of Y-shaped connecting rod and mounting plate, which is fixed to the frame at multiple points. With the threaded self-locking characteristics of the telescopic adjustment element, it can offset the reaction force when the conveyor belt is lifted, prevent tools from tilting or overturning, and completely avoid the risk of personnel crushing and injury caused by the slippage of traditional jacks and crowbars.

[0021] The adjusting sleeve features anti-slip textures to reduce the difficulty of applying force, while the threaded drive enables precise control of the conveyor belt height, eliminating the need for manual control of the jack's lifting speed. The design of the sliding block and fixing screw allows for quick locking of the load-bearing element angle, eliminating the need for repeated calibration of the force point. Even inexperienced new maintenance personnel can operate independently after simple training, solving the problems of traditional tools relying on experienced employees and having a high rate of operational errors. This helps companies achieve standardized and regulated management of equipment maintenance operations.

[0022] The mounting plate's waist-shaped holes can accommodate connection holes for different frame sizes, and the sliding block angle adjustment can adapt to idlers with different tilt angles. The arc-shaped support plate's curvature is compatible with mainstream conveyor belt sizes, eliminating the need for separate special tools for different conveyor models. High-strength alloy screws and other wear-resistant materials, combined with welding reinforcement and anti-corrosion treatment, extend tool life and reduce costs caused by frequent tool replacements due to wear and tear. Balancing single-use efficiency with long-term economic benefits, this provides a cost-effective solution for enterprise belt conveyor maintenance. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments of the present invention will be briefly described below. Obviously, the drawings described below only relate to some embodiments of the present invention and are not intended to limit the present invention. Wherein: Figure 1 A schematic diagram of the overall structure of a portable tool for installing and removing idler rollers is shown; Figure 2 A schematic diagram of the sliding block and fixing screw positions of a portable tool for installing and removing idler rollers is shown. Figure 3 A schematic diagram of the structure between the locking block and the arc-shaped support plate of the portable tool used for installing and removing idler rollers is shown. Figure 4 A schematic diagram of the sliding groove location structure of a portable tool for installing and removing idler rollers is shown; Figure 5 for Figure 3 Enlarged structural diagram at point A in the middle; Figure 6 A schematic diagram of the locking block and sliding rod connection structure of a portable tool for installing and removing idler rollers is shown. Detailed Implementation

[0024] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0025] The terminology used in this invention is that which is currently widely used in the art in consideration of the function of the invention; however, these terms may vary according to the intent of those skilled in the art, precedent, or new technology in the art. Furthermore, specific terms may be chosen by the applicant, and in such cases, their detailed meanings will be described in the detailed description of the invention. Therefore, the terms used in this specification should not be construed as simple names, but rather based on their meanings and the overall description of the invention.

[0026] Reference Figure 1 This embodiment provides a portable tool for installing and removing idlers. It features a modular design that provides stable support for the conveyor belt, a robust frame connection, and precise height adjustment. The overall structure is compact and lightweight, adaptable to replacing upper, lower, and side idlers on belt conveyors, making it particularly suitable for single-person operation in confined spaces. Its core components include a load-bearing element 1, a support element 2, and a telescopic adjustment element 3. These components work together to lift, position, and reset the conveyor belt during idler replacement.

[0027] The load-bearing element 1 is used to form a close-fitting support with the conveyor belt. As a component in direct contact with the conveyor belt, its core function is to form a close-fitting support, dispersing the force by increasing the contact area and preventing excessive local pressure that could lead to deformation or damage to the conveyor belt. The structural design of this element must adapt to the curved contour of the conveyor belt to ensure stable contact with the conveyor belt during the lifting process, while also possessing a certain degree of cushioning performance to accommodate slight deformation of the conveyor belt, providing a safe and reliable working space for subsequent idler roller installation and removal.

[0028] Support element 2 is used to form a stable connection with the conveyor frame. Support element 2 is a key component connecting the tool to the conveyor frame, providing a stable support foundation for the entire tool. Through its adaptive connection with the frame structure, it counteracts the lifting reaction force transmitted by the load-bearing elements, preventing the tool from tilting, sliding, or overturning during operation. The structure of the support element needs to be adapted to the shape characteristics of different types of conveyor frames to ensure rigid fixation under various working conditions, providing a stable benchmark for the length adjustment of the telescopic adjustment elements.

[0029] The telescopic adjustment element 3 is connected between the carrying element 1 and the supporting element 2. The telescopic adjustment element 3 includes a first adjusting member 31, a second adjusting member 32, and a driving member 33, which move relative to each other. The driving member 33 adjusts the distance between the carrying element 1 and the supporting element 2 by driving the relative movement of the first adjusting member 31 and the second adjusting member 32. The telescopic adjustment element 3, connected between the carrying element 1 and the supporting element 2, is the core actuator for adjusting the conveyor belt height. This element converts the operator's rotational force into linear displacement through a mechanical transmission structure, thereby precisely controlling the distance between the carrying element and the supporting element. The relative movement of the first adjusting member 31, the second adjusting member 32, and the driving member 33 constitutes a complete transmission chain: the driving member 33 receives external operating force and transmits it to the first adjusting member 31 and the second adjusting member 32. The relative movement of these two members changes the overall length of the element, ultimately raising or lowering the conveyor belt. Its adjustment accuracy directly affects the convenience and safety of the idler roller assembly and disassembly.

[0030] Reference Figures 1-3 and Figures 5-6 As an optional embodiment, the bearing element 1 includes an arc-shaped support plate 11. The top of the arc-shaped support plate 11 has a slot for placing locking blocks 12, which are evenly distributed along the length of the arc-shaped support plate 11. The bearing element 1 includes an arc-shaped support plate 11, which is formed by bending a metal sheet with a certain strength. Its curvature matches the outer arc surface curvature of the conveyor belt, ensuring surface contact rather than point contact when in contact with the conveyor belt, effectively dispersing pressure. The top of the arc-shaped support plate 11 has a long, narrow slot along its length. Multiple locking blocks 12 are movably placed within this slot. The locking blocks 12 are made of wear-resistant rubber and are evenly spaced along the length of the arc-shaped support plate 11. Their function is to further enhance friction through flexible contact with the conveyor belt surface, preventing relative sliding between the bearing element and the conveyor belt, and avoiding direct metal-to-metal contact that could scratch the conveyor belt.

[0031] Overflow plates 13 are installed on both sides of the clamping block 12. A sliding rod 14 is installed at the bottom end of the overflow plate 13, and the bottom end of the sliding rod 14 extends into the interior of the fixed cylinder 15. The overflow plates 13 are symmetrically installed on both sides of the clamping block 12. The overflow plates 13 are arc-shaped thin plate structures, and their curvature is consistent with that of the arc-shaped support plate 11. They can extend to both sides when the clamping block 12 contacts the conveyor belt, covering the transition area of ​​the conveyor belt edge and preventing the conveyor belt edge from lifting due to uneven force. The sliding rod 14 is vertically fixed at the bottom end of the overflow plate 13. The sliding rod 14 is a cylindrical metal rod, and its bottom end extends axially into the interior of the fixed cylinder 15. The fixed cylinder 15 is a hollow tubular structure, and its sidewall is fixed to the side of the arc-shaped support plate 11 by welding or bolting, forming a guide channel for the sliding rod 14.

[0032] The side wall of the fixed cylinder 15 is connected to the arc-shaped support plate 11, and the side wall of the sliding rod 14 is fitted with a telescopic spring 16. The top end of the telescopic spring 16 abuts against the bottom end of the overflow plate 13, and the bottom end abuts against the inner bottom wall of the fixed cylinder 15. When the overflow plate 13 is subjected to the pressure of the conveyor belt, the sliding rod 14 slides down along the fixed cylinder 15 and compresses the telescopic spring 16. The elastic restoring force of the spring forms a buffer, so that the overflow plate 13 always flexibly fits against the edge of the conveyor belt, adapting to the operating requirements of conveyor belts of different thicknesses.

[0033] Reference Figures 2-4 The support element 2 includes a connecting rod 21 located at the bottom of the telescopic adjustment element 3. The connecting rod 21 is Y-shaped, and a mounting plate 22 is located at the end of the connecting rod 21 away from the telescopic adjustment element 3. The mounting plate 22 is used to form a stable connection with the conveyor frame. The connecting rod 21 is made of high-strength alloy steel and has a Y-shaped forked structure. This structure design can distribute the force through the two forked ends, enhancing the support stability. The top of the Y-shaped connecting rod 21 is fixed to the bottom of the telescopic adjustment element 3 by welding. The end away from the telescopic adjustment element 3 is connected to a mounting plate 22. The mounting plate 22 is a rectangular metal plate with multiple oblong holes on its surface. It can be connected to the crossbeams, longitudinal beams, and other structural components of the conveyor frame by bolts or clips. The oblong hole design allows the mounting plate 22 to be adjusted within a certain range to adapt to the connection hole positions of different frame specifications, ensuring that the support element 2 is rigidly fixed to the frame.

[0034] The first adjusting component 31 includes a lower lead screw 311 disposed at the top of the connecting rod 21, and an upper lead screw 312 disposed at the top of the lower lead screw 311. The lower lead screw 311 is a cylindrical external thread structure, and its bottom end is welded and fixed to the top of the Y-shaped connecting rod 21. The upper lead screw 312 is coaxially disposed at the top of the lower lead screw 311. The upper lead screw 312 is also an external thread structure, but its thread direction is opposite to that of the lower lead screw 311. The side walls of the upper lead screw 312 and the lower lead screw 311 are jointly fitted with an adjusting sleeve 313. The adjusting sleeve 313 is a hollow cylindrical structure, and its inner wall is machined with internal threads that are adapted to the upper lead screw 312 and the lower lead screw 311 respectively, and the direction of the two internal threads is consistent with the corresponding lead screw. When the operator rotates the adjusting sleeve 313, the upper lead screw 312 and the lower lead screw 311 will move in opposite directions along the axial direction through the thread engagement, thereby quickly changing the overall length of the first adjusting member 31 and realizing the distance adjustment between the bearing element 1 and the supporting element 2.

[0035] Adjusting sleeves 313 are fitted on the side walls of the upper lead screw 312 and the lower lead screw 311. The rotation of the adjusting sleeves 313 can drive the upper lead screw 312 and the lower lead screw 311 to move in opposite directions.

[0036] The second adjusting component 32 includes a sliding block 321 disposed at the top of the upper lead screw 312. The sliding block 321 is T-shaped and located inside the sliding groove 322. The sliding block 321 has a T-shaped structure, with its horizontal portion fixedly connected to the top of the upper lead screw 312, and its vertical portion embedded in the sliding groove 322 and able to slide along the groove. This T-shaped design prevents the sliding block 321 from disengaging from the sliding groove 322, while ensuring the straightness of the sliding direction, providing stable support and an angle adjustment base for the bearing element 1.

[0037] Reference Figures 1-6 A limiting plate 323 is installed at the bottom end of the arc-shaped support plate 11. The limiting plates 323 are symmetrically arranged about the central axis of the arc-shaped support plate 11. The distance between the two limiting plates 323 and the arc-shaped support plate 11 forms a sliding groove 322. The side wall of the arc-shaped support plate 11 is provided with fixing screws 324 for fixing the sliding block 321 to the arc-shaped support plate 11. The limiting plates 323 are vertically welded to the bottom end of the arc-shaped support plate 11. The limiting plates 323 are two rectangular metal plates, symmetrically distributed about the central axis of the arc-shaped support plate 11. A long strip-shaped sliding groove 322 is formed between the inner side wall of the two limiting plates 323 and the bottom surface of the arc-shaped support plate 11. The width of the sliding groove 322 is adapted to the thickness of the vertical part of the sliding block 321 to ensure that the sliding block 321 can slide smoothly in the groove without obvious shaking. A fixing screw 324 is horizontally installed on the side wall of the arc-shaped support plate 11 corresponding to the position of the sliding groove 322. The end of the fixing screw 324 extends into the sliding groove 322. When the sliding block 321 is adjusted to a suitable position, the fixing screw 324 is tightened so that its end abuts against the side wall of the sliding block 321, thereby locking the sliding block 321 in the current position, thus fixing the relative angle between the bearing element 1 and the telescopic adjustment element 3, and adapting to the operation requirements of conveyor belts with different inclination angles.

[0038] The driving component 33 includes a plug rod 331 disposed between the upper lead screw 312 and the lower lead screw 311. The rotation of the adjusting sleeve 313 is driven by the plug rod 331. A chain buckle 332 is provided on the side wall of the arc-shaped support plate 11. The driving component 33 includes a plug rod 331 disposed between the upper lead screw 312 and the lower lead screw 311. The plug rod 331 is a cylindrical metal rod, with its two ends respectively embedded in corresponding insertion holes at the bottom end of the upper lead screw 312 and the top end of the lower lead screw 311. The plug rod 331 has a clearance fit with the insertion holes, which does not affect the relative rotation of the upper and lower lead screws, but can transmit torque. When the adjusting sleeve 313 rotates, the torque generated by the thread action is transmitted between the upper and lower lead screws through the plug rod 331, ensuring that the two respond synchronously to the rotation action and achieve opposite movement. In addition, the side wall of the arc-shaped support plate 11 is welded with a chain buckle 332. The chain buckle 332 includes a fixing ring and a chain with a hook. During operation, the hook can be hooked onto the fixed structure of the conveyor frame or the conveyor belt to prevent the tool from falling due to accidental force during the lifting of the conveyor belt, thereby further improving the safety of operation.

[0039] The mounting plate 22 of the support element 2 is attached to a stable position on the conveyor frame, such as the edge of the belt trough steel frame, to ensure that the mounting plate 22 is in close contact with the frame surface and to prevent the support element 2 from shifting during operation. According to the outer arc profile of the conveyor belt, adjust the angle of the arc support plate 11, push the sliding block 321 in the sliding groove 322 to align the top surface of the arc support plate 11 with the lower surface of the conveyor belt, and then tighten the fixing screws 324 on the side wall of the arc support plate 11 to lock the sliding block 321 in the sliding groove 322, so as to achieve the initial contact between the bearing element 1 and the conveyor belt. The operator holds the adjusting sleeve 313 with both hands and rotates it clockwise or counterclockwise according to the direction of the thread. When the adjusting sleeve 313 rotates, the driving force is transmitted through the insert rod 331, which drives the upper screw 312 and the lower screw 311 inside it to move in opposite directions. As the upper lead screw 312 and the lower lead screw 311 move in opposite directions, the overall length of the telescopic adjustment element 3 gradually extends, thereby pushing the bearing element 1 upward to lift the conveyor belt. At the same time, the chain buckle 332 locks onto the conveyor belt to prevent it from falling off during operation. When the bearing element 1 releases the conveyor belt, the squeezing force will cause the locking block 12 to move downward. The downward-moving locking block 12 will restrict the sliding block 321 on both sides, thereby effectively reducing the load on the fixing screw 324 and reducing the slippage caused by the slippage. During the process of lifting the conveyor belt, observe the distance between the conveyor belt and the idler to be replaced. When the distance reaches a space sufficient for the removal or installation of the idler, stop rotating the adjusting sleeve 313. At this time, the telescopic adjustment element 3 maintains the current length through the self-locking characteristic of the thread, and the conveyor belt is stably in the lifted state.

[0040] The operator holds the curved support plate 11 of the tool with one hand, and uses the other hand or a cooperating person to use a special tool to remove the fixing bolts at both ends of the idler roller to be replaced, and remove the old idler roller from the frame slot; Take the new idler roller, align it with the slot on the frame, adjust the position of the idler roller so that its mounting hole is aligned with the frame hole, and tighten the fixing bolts to complete the installation. During the disassembly and assembly process, if the conveyor belt deviates slightly, the position can be finely adjusted by slightly pushing the arc-shaped support plate 11 and using the cooperation gap between the sliding block 321 and the sliding groove 322 to ensure that the idler roller is installed accurately.

[0041] After the idler roller is disassembled and installed, the operator rotates the adjusting sleeve 313 in the opposite direction, so that the upper screw 312 and the lower screw 311 move in opposite directions. The overall length of the telescopic adjusting element 3 is shortened, and the bearing element 1 moves down accordingly. The conveyor belt slowly falls back to the surface of the new idler roller until the arc-shaped support plate 11 completely disengages from the conveyor belt. Loosen the fixing screw 324, remove the sliding block 321 from the sliding groove 322, and separate the bearing element 1 from the telescopic adjustment element 3; then remove the mounting plate 22 of the support element 2, check that there is no damage to the tool parts, reset the locking block 12, retract the telescopic spring 16 to the initial state, organize the tool and store it in the carrying case; Start the conveyor, observe the rotation status of the new idler rollers and the operation of the conveyor belt. After confirming that there is no deviation or abnormal noise, complete the entire idler roller replacement operation.

[0042] Fix the mounting plate 22 of the support element 2 to the stable structure under the conveyor frame, adjust the arc support plate 11 to the top of the conveyor belt, so that the clamp 12 fits the surface of the conveyor belt from above, and the subsequent lifting, disassembly and assembly steps are the same as the replacement of the lower idler roller. Fix the mounting plate 22 of the support element 2 to the side frame of the conveyor. The arc-shaped support plate 11 is adapted to the side curvature of the conveyor belt corresponding to the side roller. Adjust the tilt angle of the arc-shaped support plate 11 by the sliding block 321 to ensure that it fits tightly with the side of the conveyor belt. Then complete the lifting and disassembly according to the above steps.

[0043] Finally, it should be noted that the methods and devices described in detail above are merely embodiments, and those skilled in the art can modify these embodiments in different ways as long as they do not depart from the scope of the present invention.

Claims

1. A portable tool for installing and removing idler rollers, characterized in that: include, The supporting element (1) is used to form a close-fitting support with the conveyor belt; Support element (2), said support element (2) is used to form a stable connection with the conveyor frame; and Telescopic adjustment element (3) is connected between the bearing element (1) and the support element (2). The telescopic adjustment element (3) includes a first adjustment member (31), a second adjustment member (32) and a driving member (33) that move relative to each other. The driving member (33) adjusts the distance between the bearing element (1) and the support element (2) by driving the relative movement of the first adjustment member (31) and the second adjustment member (32).

2. The portable tool for installing and removing idler rollers according to claim 1, characterized in that: The supporting element (1) includes an arc-shaped support plate (11), and the top of the arc-shaped support plate (11) is provided with a slot for placing a card block (12), wherein the card block (12) is evenly arranged along the length direction of the arc-shaped support plate (11).

3. The portable tool for installing and removing idler rollers according to claim 2, characterized in that: The card block (12) is equipped with overflow plates (13) on both sides, and a sliding rod (14) is installed at the bottom end of the overflow plate (13). The bottom end of the sliding rod (14) extends into the interior of the fixed cylinder (15).

4. The portable tool for installing and removing idler rollers according to claim 3, characterized in that: The side wall of the fixed cylinder (15) is connected to the arc-shaped support plate (11), and the side wall of the sliding rod (14) is fitted with a telescopic spring (16).

5. The portable tool for installing and removing idler rollers according to claim 4, characterized in that: The support element (2) includes a connecting rod (21) disposed at the bottom of the telescopic adjustment element (3). The connecting rod (21) is Y-shaped, and a mounting plate (22) is disposed at the end of the connecting rod (21) away from the telescopic adjustment element (3). The mounting plate (22) is used to form a stable connection with the conveyor frame.

6. The portable tool for installing and removing idler rollers according to claim 5, characterized in that: The first adjusting member (31) includes a lower lead screw (311) disposed at the top of the connecting rod (21), and an upper lead screw (312) disposed at the top of the lower lead screw (311).

7. The portable tool for installing and removing idler rollers according to claim 6, characterized in that: The upper lead screw (312) and the lower lead screw (311) are fitted with adjusting sleeves (313) on their side walls. The rotation of the adjusting sleeves (313) can drive the upper lead screw (312) and the lower lead screw (311) to move in opposite directions.

8. The portable tool for installing and removing idler rollers according to claim 7, characterized in that: The second adjusting member (32) includes a sliding block (321) disposed at the top of the upper lead screw (312), the sliding block (321) being T-shaped and located inside the sliding groove (322).

9. The portable tool for installing and removing idler rollers according to claim 8, characterized in that: The bottom end of the arc-shaped support plate (11) is equipped with a limiting plate (323). The limiting plate (323) is symmetrically arranged with respect to the central axis of the arc-shaped support plate (11). The distance between the two limiting plates (323) and the arc-shaped support plate (11) forms a sliding groove (322). The side wall of the arc-shaped support plate (11) is provided with fixing screws (324) for fixing the sliding block (321) on the arc-shaped support plate (11). The limiting plate (323) is uniformly provided with screw holes for fixing screws (324) in the length direction.

10. The portable tool for installing and removing idler rollers according to claim 9, characterized in that: The driving component (33) includes a plug rod (331) disposed between the upper screw (312) and the lower screw (311). The rotation of the adjusting sleeve (313) is driven by the plug rod (331). The side wall of the arc-shaped support plate (11) is provided with a chain buckle (332).

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