A light and labor-saving roller replacement tool

Abstract

The utility model discloses a portable and laborsaving carrier roller replacement tool relates to carrier roller replacement tool technical field, including installation base, and the top surface of installation base is installed and lifts the subassembly, and the subassembly includes sliding plate, and sliding plate slidingly inserts in the top surface center place of installation base, and the top fixed mounting of sliding plate has the lifting rod, and the bottom surface center place of installation base is equipped with the rotating sleeve, and the outer wall rotationally coupled of rotating sleeve has two rotating supports, and two rotating supports all are equipped with in the outer surface of rotating sleeve, and two rotating supports pass through two groups of adjusting components fixed connection, the utility model discloses through the rotation hand rocker drive gear mechanism, makes sliding plate along installation base up and down movement, and the design of speed reducing gear set has reduced the torque of driven gear rotation, realizes laborsaving effect, and the cooperation of ratchet gear and ratchet block simultaneously, can prevent sliding plate and fall back, has improved the security of operation can efficiently, safely complete carrier roller replacement operation, reduces the labor intensity of operating personnel, improves work efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of idler roller replacement tools, specifically a lightweight and labor-saving idler roller replacement tool. Background Technology

[0002] In conveyor systems, idlers serve as key supporting components, playing a role in bearing and guiding the conveyor belt. However, since conveyors operate continuously for extended periods, idlers are prone to damage due to wear, dust accumulation, or other factors, requiring regular replacement or maintenance. Currently, idler replacement is typically done manually, which is a cumbersome and labor-intensive process. Especially in narrow or high-altitude environments, operators are more likely to experience increased work difficulty due to posture limitations, and there may even be safety hazards.

[0003] Existing idler roller replacement tools mostly adopt a manual disassembly and assembly structure. Although this improves replacement efficiency to some extent, the following problems still exist: the tools themselves are relatively bulky, which puts a heavy burden on operators when carrying and using them. At the same time, the tools have poor adaptability and are difficult to adapt to idler rollers of different specifications or installation methods.

[0004] Therefore, in view of the shortcomings of the existing technology, there is an urgent need for a roller replacement tool that is lightweight, labor-saving, adaptable and safe to operate, so as to improve replacement efficiency, reduce the labor intensity of workers and ensure the stable operation of the conveyor system.

[0005] A search revealed that prior art publication number CN209579385U discloses a roller replacement tool, including a fulcrum base and a lever assembly. The bottom of the fulcrum base is mounted on the longitudinal beam of the conveyor belt, and the top is provided with a locking slot for movably engaging with the longitudinal beam. A chain link is provided at the top of the fulcrum base. The lever assembly includes a lever and a hook chain. The middle part of the lever is hinged to the bottom end of the fulcrum base, and the front end of the lever is provided with a hook chain. One end of the hook chain is fixed to the lever, and the other end is detachably hooked onto the chain link. This solution, by engaging the fulcrum base with the longitudinal beam of the conveyor belt, provides a fulcrum for the lever while enabling horizontal movement along the longitudinal beam, facilitating movement to the roller replacement position. It eliminates the need for other objects; the hook chain locks the raised lever front end onto the tool's own support frame. The design is ingenious, lightweight, and easy to operate.

[0006] Therefore, based on the above search and combined with existing technology, the existing idler roller replacement tool cannot adjust the size of the base according to the usage scenario, which is not applicable enough. At the same time, it lacks flexibility and is not easy to carry. Utility Model Content

[0007] The purpose of this invention is to provide a lightweight and labor-saving idler roller replacement tool to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A lightweight and labor-saving idler roller replacement tool includes a mounting base. A lifting assembly is mounted on the top surface of the mounting base. The lifting assembly includes a sliding plate that is slidably inserted into the center of the top surface of the mounting base. A lifting rod is fixedly mounted on the top of the sliding plate. A rotating sleeve is provided at the center of the bottom surface of the mounting base. Two rotating supports are rotatably connected to the outer wall of the rotating sleeve. The two rotating supports are symmetrically arranged vertically and are both sleeved on the outer surface of the rotating sleeve. The two rotating supports are parallel to each other. A moving assembly is rotatably connected to both ends of the two rotating supports. The two rotating supports are fixedly connected by two sets of adjusting components.

[0010] Furthermore, a rack is welded and fixed to the front end face of the sliding plate, and a first bracket is provided on the top surface of the mounting base. A driven gear is rotatably connected to the end of the first bracket, and the driven gear meshes with the rack.

[0011] Furthermore, a second bracket is provided on the top surface of the mounting base, and a drive gear is rotatably connected to the end of the second bracket. The drive gear and the driven gear mesh with each other, and the shaft of the drive gear passes through the side wall of the second bracket and is coaxially fixedly connected to a hand crank.

[0012] Furthermore, after the driven gear's shaft passes through the side wall of the first bracket, a ratchet gear is coaxially fixedly installed. A mounting groove is provided on the top surface of the mounting base, and a ratchet block is slidably installed in the mounting groove. A spring is clamped between the bottom surface of the ratchet block and the bottom surface of the mounting groove, and the ratchet block meshes with the ratchet gear.

[0013] Furthermore, the rotating support includes a rotating ring, which is rotatably sleeved on the outer wall of the rotating sleeve. The rotating support has two rotating arms symmetrically arranged on the left and right sides, and each of the two rotating arms has a rotating cylinder at its end.

[0014] Furthermore, the movable component includes a plug-in cylinder, which is rotatably connected to a rotating cylinder, and a plug-in rod is slidably inserted into the plug-in cylinder.

[0015] Furthermore, a movable wheel is rotatably connected to the bottom end of the plug rod, and a spring is sleeved on the outer wall of the plug rod.

[0016] Furthermore, a brake sleeve is fixedly installed on the bottom surface of the plug-in cylinder. The inner wall size of the brake sleeve is adapted to the outer wall size of the moving wheel, and a rubber strip is bonded to the inner wall of the brake sleeve.

[0017] Furthermore, the top surface of the rotating bracket is provided with a slide rail, and the bottom surface of the slide rail is provided with several positioning grooves at equal intervals. The adjustment component includes an adjustment plate, and the front end of the top surface and the rear end of the bottom surface of the adjustment component are provided with sliders. The two sliders are slidably connected in the slide rails of the two rotating brackets respectively.

[0018] Furthermore, storage slots are provided on the end faces of the two sliders away from the adjustment plate, and positioning pins are slidably connected in both storage slots. The positioning pins are connected to the storage slots by springs, and the outer wall size of the positioning pins is adapted to the inner wall size of the positioning slots.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. In use, this utility model drives the gear mechanism by rotating the hand crank, which causes the sliding plate to move up and down along the mounting base. The design of the reduction gear set reduces the torque of the driven gear, achieving a labor-saving effect. At the same time, the cooperation between the ratchet and the ratchet block can prevent the sliding plate from falling back, improving the safety of operation.

[0021] 2. When in use, the lifting rod is raised by the upward movement of the sliding plate, thereby supporting the transmission belt and making the replacement of the idler roller more convenient. The lifting rod forms a stable triangular structure through two support rods, ensuring that it remains horizontal during operation, thus improving the stability and reliability of the equipment.

[0022] 3. In use, this utility model features an adjustable rotation angle for the rotating bracket to adapt to different working scenarios. The moving component, combined with spring two and brake sleeve, achieves automatic braking function to prevent accidental slippage of the equipment during use. In addition, the adjusting component adjusts the included angle between the rotating bracket and the slider and positioning pin, improving the flexibility and adaptability of the equipment to meet different working needs. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is an exploded view of the overall structure of this utility model;

[0025] Figure 3 This is a partial exploded view of the structure of this utility model;

[0026] Figure 4 This is a drawing of the rotating support structure of this utility model;

[0027] Figure 5 This is a schematic diagram of the structure of the mobile component of this utility model;

[0028] Figure 6 This is an exploded view of the mobile component structure of this utility model;

[0029] Figure 7 This is a schematic diagram of the adjustment component structure of this utility model;

[0030] Figure 8 This is an exploded view of the adjustment component structure of this utility model.

[0031] In the picture:

[0032] 1. Mounting base; 11. First bracket; 12. Second bracket;

[0033] 2. Lifting assembly; 21. Sliding plate; 22. Rack; 23. Support rod; 24. Driving gear; 25. Driven gear; 26. Hand crank; 27. Ratchet; 28. Ratchet block; 29. ​​Spring 1;

[0034] 3. Lifting rod;

[0035] 4. Rotating bracket; 41. Rotating ring; 42. Rotating arm; 43. Rotating cylinder; 44. Slide rail; 45. Positioning groove;

[0036] 5. Moving component; 51. Connecting cylinder; 52. Connecting rod; 53. Moving wheel; 54. Spring II; 55. Brake housing;

[0037] 6. Adjustment assembly; 61. Adjustment plate; 611. Slider; 62. Positioning pin; 621. Slide rod; 63. Spring three. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0039] Example 1: Please refer to Figures 1-3A lightweight and labor-saving idler roller replacement tool includes a mounting base 1. A lifting assembly 2 is mounted on the top surface of the mounting base 1. The lifting assembly 2 includes a sliding plate 21, which is slidably inserted into the center of the top surface of the mounting base 1. Specifically, an insertion groove is provided at the center of the top surface of the mounting base 1, and the sliding plate 21 is slidably inserted into the insertion groove. The inner wall size of the insertion groove is adapted to the outer wall size of the sliding plate 21, and the insertion groove has a limiting and guiding function for the sliding plate 21. A blocking plate is provided at the bottom end of the sliding plate 21 to prevent the sliding plate 21 from falling out of the insertion groove. A lifting rod 3 is fixedly mounted on the top end of the sliding plate 21. Support rods 23 are hinged to both the left and right side walls of the sliding plate 21. The end of the support rod 23 away from the sliding plate 21 is hinged to the bottom surface of the lifting rod 3. The two support rods 23 form a stable triangular structure to ensure that the lifting rod 3 is horizontal. The top surface of the lifting rod 3 is an arc surface. The lifting rod 3 is used to support the belt to be repaired. A rotating sleeve is provided at the center of the bottom surface of the mounting base 1. Two rotating brackets 4 are rotatably connected to the outer wall of the rotating sleeve. The two rotating brackets 4 are both sleeved on the outer surface of the rotating sleeve and are parallel to each other. The two ends of the two rotating brackets 4 are rotatably connected to the moving components 5. The two rotating brackets 4 are fixedly connected by two sets of adjusting components 6.

[0040] A rack 22 is welded and fixed to the front end face of the sliding plate 21. Specifically, the front end face of the sliding plate 21 has an installation groove, and the rack 22 is welded and fixed in the installation groove. The top surface of the mounting base 1 has a first bracket 11, and a driven gear 25 is rotatably connected to the end of the first bracket 11. The driven gear 25 meshes with the rack 22. The top surface of the mounting base 1 has a second bracket 12, and a driving gear 24 is rotatably connected to the end of the second bracket 12. The driving gear 24 meshes with the driven gear 25. The shaft of the driving gear 24 passes through the side wall of the second bracket 12 and is coaxially fixed to a hand crank 26. Specifically, the hand crank 26 drives the driving gear 24 to rotate, and the driving gear 24 drives the driven gear 25 to rotate synchronously. The number of teeth of the driving gear 24 is less than the number of teeth of the driven gear 25. The driving gear 24 and the driven gear 25 form a reduction gear set. The rotation of the driven gear 25 is transmitted through the rack. 22 controls the sliding plate 21 to move up and down in the insertion slot of the mounting base 1. The reduction gear set can reduce the torque that makes the driven gear 25 rotate, achieving the effect of saving effort. The shaft of the driven gear 25 passes through the side wall of the first bracket 11 and is coaxially fixedly installed with a ratchet 27. Specifically, the outer wall of the shaft of the driven gear 25 is provided with a protrusion, and the inner wall of the ratchet 27 is provided with a groove. The inner wall size of the groove is adapted to the outer wall size of the protrusion. The groove has a limiting effect on the protrusion, so that the ratchet 27 can rotate synchronously with the driven gear 25. The top surface of the mounting base 1 is provided with a mounting groove, and a ratchet block 28 is slidably installed in the mounting groove. A spring 29 is sandwiched between the bottom surface of the ratchet block 28 and the bottom surface of the mounting groove. The ratchet block 28 and the ratchet 27 are meshed and connected. Specifically, the meshing of the ratchet 27 and the ratchet block 28 can prevent the driven gear 25 from rotating back, so that the height of the sliding plate 21 is fixed.

[0041] Example 2: Please refer to Figures 4-8A lightweight and labor-saving roller replacement tool, based on Embodiment 1, includes a rotating bracket 4 comprising a rotating ring 41 rotatably sleeved on the outer wall of a rotating sleeve. The rotating bracket 4 has two symmetrically arranged rotating arms 42, each with a rotating cylinder 43 at its end. A movable component 5 includes a connector cylinder 51 rotatably connected to the rotating cylinder 43. A connector rod 52 is slidably inserted into the connector cylinder 51. Specifically, the top surface of the connector cylinder 51 has a through-hole, and the connector rod 52 is slidably inserted into the hole. The hole is square, and the rod is square to prevent rotation within the hole. A movable wheel is rotatably connected to the bottom end of the connector rod 52. 53. A second spring 54 is fitted on the outer wall of the plug rod 52. Specifically, the top end of the second spring 54 abuts against the bottom surface of the plug tube 51, and the bottom end of the second spring 54 abuts against the top surface of the protruding ring on the outer wall of the plug rod 52. The second spring 54 exerts a downward force on the plug rod 52. A blocking block is provided at the top end of the plug rod 52 to prevent the plug rod 52 from falling out of the plug tube 51. A brake sleeve 55 is fixedly installed on the bottom surface of the plug tube 51. The inner wall size of the brake sleeve 55 is adapted to the outer wall size of the moving wheel 53. A rubber strip is adhered to the inner wall of the brake sleeve 55. Specifically, when the second spring 54 is compressed, the outer wall of the moving wheel 53 abuts tightly against the inner wall of the brake sleeve 55, and the moving wheel 53 cannot rotate.

[0042] The top surface of the rotating bracket 4 is provided with a slide rail 44, and the bottom surface of the slide rail 44 is provided with a plurality of positioning grooves 45 at equal intervals. The adjusting component 6 includes an adjusting plate 61. The front end of the top surface and the rear end of the bottom surface of the adjusting component 6 are provided with sliders 611. The two sliders 611 are slidably connected in the slide rails 44 of the two rotating brackets 4 respectively. The end face of the two sliders 611 away from the adjusting plate 61 is provided with a storage groove. The two storage grooves are slidably connected with positioning pins 62. The positioning pins 62 are connected to the storage grooves by springs 63. The outer wall dimension of the positioning pin 62 is the same as the inner wall dimension of the positioning groove 45. Specifically, the positioning pin 62 is engaged in the positioning groove 45 to fix the angle between the two rotating supports 4 of the adjustment component 6. The top surface of the positioning pin 62 is provided with a slide rod 621. After the slide rod 621 passes through the bottom surface of the storage groove, it is provided with a pull ring. By pulling the positioning pin 62 through the pull ring, the spring 63 is compressed, so that the positioning pin 62 is disengaged from the positioning groove 45, and the adjustment component 6 can slide in the slide rail 44 of the two rotating supports 4. The angle between the two rotating supports 4 can be adjusted by the adjustment component 6 to adapt to different usage scenarios.

[0043] Working principle: The operator turns the hand crank 26, which drives the drive gear 24 to rotate. The drive gear 24 drives the driven gear 25 to rotate synchronously. The rotation of the driven gear 25 controls the sliding plate 21 to move up and down in the insertion slot of the mounting base 1 through the rack 22. The reduction gear set can reduce the torque that makes the driven gear 25 rotate, achieving the effect of saving effort. At the same time, the driven gear 25 is coaxially fixedly connected to the ratchet 27. The meshing of the ratchet 27 with the ratchet block 28 can prevent the sliding plate 21 from falling back.

[0044] When the sliding plate 21 moves upward, the lifting rod 3 fixed on it rises accordingly. The lifting rod 3 is used to support the transmission belt so that the idler roller can be easily replaced. The lifting rod 3 forms a stable triangular structure through two support rods 23 to ensure its horizontal state.

[0045] The bottom of the mounting base 1 is provided with a rotating sleeve. The rotating bracket 4 is rotated and adjusted through the rotating sleeve to adapt to different working scenarios. Both ends of the rotating bracket 4 are connected to a moving component 5. The moving component 5 consists of a plug-in cylinder 51, a plug-in rod 52 and a moving wheel 53. The plug-in rod 52 is slidably inserted into the plug-in cylinder 51 and is subjected to downward pressure by the second spring 54. When the lifting rod 3 supports the transmission belt, the rotating bracket 4 is subjected to the gravity of the transmission belt. The plug-in cylinder 51 compresses the second spring 54 to make the moving wheel 53 contact the brake sleeve 55 tightly, preventing the moving wheel 53 from rolling freely, thereby realizing the braking function.

[0046] In addition, the adjustment component 6 is used to adjust the included angle between the two rotating supports 4. Its core components include an adjustment plate 61, a slider 611, a positioning pin 62, and a spring 63. The slider 611 is slidably connected in the slide rail 44 and is engaged in the positioning groove 45 by the positioning pin 62 to fix the included angle. When the included angle needs to be adjusted, the operator pulls the slide bar 621 to release the engagement of the positioning pin 62, so that the adjustment component 6 can slide freely. At this point, the operation of the device is completed.

[0047] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the scope of the technology disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A lightweight and labor-saving idler roller replacement tool, comprising a mounting base (1), characterized in that: The top surface of the mounting base (1) is equipped with a lifting component (2). The lifting component (2) includes a sliding plate (21). The sliding plate (21) is slidably inserted into the center of the top surface of the mounting base (1). A lifting rod (3) is fixedly installed at the top of the sliding plate (21). A rotating sleeve is provided at the center of the bottom surface of the mounting base (1). Two rotating supports (4) are rotatably connected to the outer wall of the rotating sleeve. The two rotating supports (4) are symmetrically arranged vertically. Both rotating supports (4) are sleeved on the outer surface of the rotating sleeve and are parallel to each other. Both ends of the two rotating supports (4) are rotatably connected to a moving component (5). The two rotating supports (4) are fixedly connected by two sets of adjusting components (6).

2. The lightweight and labor-saving idler roller replacement tool according to claim 1, characterized in that: The sliding plate (21) has a rack (22) welded and fixed to its front end face. The mounting base (1) has a first bracket (11) on its top surface. The end of the first bracket (11) is rotatably connected to a driven gear (25), which meshes with the rack (22).

3. The lightweight and labor-saving idler roller replacement tool according to claim 2, characterized in that: The mounting base (1) has a second bracket (12) on its top surface. The end of the second bracket (12) is rotatably connected to a drive gear (24). The drive gear (24) meshes with the driven gear (25). The shaft of the drive gear (24) passes through the side wall of the second bracket (12) and is coaxially fixedly connected to a hand crank (26).

4. The lightweight and labor-saving idler roller replacement tool according to claim 3, characterized in that: The driven gear (25) has a rotating shaft that passes through the side wall of the first bracket (11) and is coaxially fixed with a ratchet gear (27). The top surface of the mounting base (1) has a mounting groove, and a ratchet block (28) is slidably installed in the mounting groove. A spring (29) is sandwiched between the bottom surface of the ratchet block (28) and the bottom surface of the mounting groove. The ratchet block (28) meshes with the ratchet gear (27).

5. The lightweight and labor-saving idler roller replacement tool according to claim 4, characterized in that: The rotating bracket (4) includes a rotating ring (41), which is rotatably sleeved on the outer wall of the rotating sleeve. The rotating bracket (4) has two rotating arms (42) symmetrically arranged on the left and right sides, and each of the two rotating arms (42) has a rotating cylinder (43) at its end.

6. The lightweight and labor-saving idler roller replacement tool according to claim 1, characterized in that: The moving component (5) includes a plug tube (51), which is rotatably connected to a rotating tube (43), and a plug rod (52) is slidably inserted into the plug tube (51).

7. The lightweight and labor-saving idler roller replacement tool according to claim 6, characterized in that: The bottom end of the plug rod (52) is rotatably connected to a movable wheel (53), and a spring (54) is sleeved on the outer wall of the plug rod (52).

8. The lightweight and labor-saving idler roller replacement tool according to claim 7, characterized in that: The bottom surface of the plug tube (51) is fixedly installed with a brake sleeve (55). The inner wall size of the brake sleeve (55) is adapted to the outer wall size of the moving wheel (53). A rubber strip is bonded to the inner wall of the brake sleeve (55).

9. The lightweight and labor-saving idler roller replacement tool according to claim 1, characterized in that: The top surface of the rotating bracket (4) is provided with a slide rail (44), and the bottom surface of the slide rail (44) is provided with a plurality of positioning grooves (45) at equal intervals. The adjusting component (6) includes an adjusting plate (61). The front end of the top surface and the rear end of the bottom surface of the adjusting component (6) are provided with sliders (611). The two sliders (611) are slidably connected in the slide rails (44) of the two rotating brackets (4).

10. A lightweight and labor-saving idler roller replacement tool according to claim 9, characterized in that: Both sliders (611) have storage slots on their ends away from the adjustment plate (61). Both storage slots are slidably connected to positioning pins (62). The positioning pins (62) are connected to the storage slots by springs (63). The outer wall size of the positioning pins (62) is adapted to the inner wall size of the positioning slots (45).

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