Automatic deviation rectifying carrier roller capable of being rapidly installed

By designing support components and automatic belt-aligning idlers, and employing labyrinth seals and natural rubber coverings, the problems of unresponsive belt-aligning devices and poor sealing were solved, achieving rapid response to belt misalignment and resistance to harsh environments.

CN223935624UActive Publication Date: 2026-02-24GLOBAL CONVEYOR SUPPLIES COMPANY
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Patent Information

Application Number
CN202520749333.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-18
Publication Date
2026-02-24
Estimated Expiration
2035-04-18

AI Technical Summary

Technical Problem

Existing belt alignment devices are not sensitive to belt misalignment, have poor sealing performance, insufficient environmental adaptability, and high energy consumption.

Method used

Design an automatic device that can be quickly installed, which adopts a bracket assembly and an automatic correction roller. The bracket assembly includes an outer fixing plate and an inner fixing plate. The outer fixing plate is provided with a guide groove and an adjustment groove, and the inner fixing plate is provided with a corresponding adjustment groove. They are connected by fasteners. The automatic correction roller adopts a labyrinth seal and is covered with natural rubber to achieve automatic correction.

Benefits of technology

It enables rapid response to belt misalignment, withstands harsh environments, saves energy, reduces cleaning labor, and controls belt misalignment over long distances.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of correctors, in particular to an automatic correcting carrier roller capable of being installed quickly, which comprises a support component and an automatic correcting carrier roller, the support component is installed on the outer side of a middle frame of a conveyor, and a connecting component moving vertically is installed on the outer side of the support component through a lifting adjusting component. An automatic deviation rectifying carrier roller arranged below the conveying belt is installed between one connecting assembly and the other connecting assembly, the support assembly comprises an outer fixing plate and an inner fixing plate, a guide groove and second adjusting grooves symmetrically distributed front and back are sequentially formed in the outer fixing plate from inside to outside, and first adjusting grooves corresponding to the second adjusting grooves are formed in the inner fixing plate. First fasteners are mounted in the first adjusting groove and the second adjusting groove; the installation mode is simple and firm, natural rubber covers the surfaces of the automatic deviation rectifying carrier rollers, the automatic deviation rectifying carrier rollers are sensitive in response to belt deviation feeling, large in deviation rectifying force, free of severe environment influences, long in belt control distance, small in use amount and free of a power source, and the automatic deviation rectifying carrier rollers are sensitive to belt deviation feeling and large in deviation rectifying force.
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Description

Technical Field

[0001] This utility model relates to the field of web guiding technology, and in particular to an automatic web guiding idler that can be quickly installed. Background Technology

[0002] During the operation of belt conveyors, belt misalignment is a common problem. There are many factors that can cause belt misalignment, such as improper belt installation, uneven load, failure to meet the installation accuracy requirements of drive rollers and idlers, environmental factors, and belt deformation or wear caused by long-term use. All of these can lead to belt misalignment, which can cause material spillage, equipment wear, or even shutdown.

[0003] To solve the problem of conveyor belt deviation, the following measures are often adopted: regularly check the installation status of the belt to ensure that the center lines of the drive roller and idler are on the same horizontal plane and the idler spacing is appropriate. Adjust the position of the idler so that the belt can turn correctly on the carrier. Install a deviation switch to detect whether the belt is deviating. Once deviation occurs, the switch will send a signal to automatically adjust or stop the machine. Clean and lubricate the belt regularly to avoid deviation caused by excessive friction and wear of materials. Select belts that meet the standards and have reliable quality. Appropriately consider the working environment factors and select appropriate belt materials. However, these technologies have the following defects: (1) Insufficient response sensitivity: Traditional correction idlers have weak ability to sense slight belt deviation, resulting in delayed correction; (2) Poor environmental adaptability: In dusty, humid or low-temperature environments, insufficient sealing can easily lead to bearing jamming or corrosion; (3) Insufficient correction force: The mechanical structure design is simple and cannot provide continuous and uniform correction force; (4) High energy consumption: Some devices rely on external power sources, increasing operating costs.

[0004] Therefore, to address the problems of low sensitivity, poor sealing, and insufficient environmental adaptability of the aforementioned deviation correction devices, an automatic deviation correction roller that can be quickly installed can be designed. Utility Model Content

[0005] To overcome the problems of low sensitivity, poor sealing, and insufficient environmental adaptability of the device.

[0006] The technical solution of this utility model is as follows: an automatic correction idler that can be installed quickly, including a support assembly and an automatic correction idler. The support assembly is installed on the outside of the intermediate frame of the conveyor. A connecting assembly that moves vertically is installed on the outside of the support assembly through a lifting adjustment assembly. An automatic correction idler set below the conveyor belt is installed between the connecting assembly and another connecting assembly. The support assembly includes an outer fixed plate and an inner fixed plate. The outer fixed plate is provided with a guide groove and a second adjustment groove symmetrically distributed front and rear from the inside to the outside. The inner fixed plate is provided with a first adjustment groove corresponding to the second adjustment groove. A first fastener is installed in the first adjustment groove and the second adjustment groove. The support assembly and the connecting assembly are connected by a third fastener.

[0007] The automatic alignment roller includes a sleeve, bearings symmetrically distributed on the outside of the sleeve, roller drums mounted on the outside of the two bearings, a spindle mounted on the outside of the sleeve via a central pivot, a labyrinth seal on the outside of the bearings, and end caps and caps mounted on both ends of the sleeve.

[0008] The connecting assembly includes a connecting plate, on the outside of which a bearing housing is fixedly connected, and on the inside of which locking fasteners are symmetrically distributed.

[0009] The lifting and adjusting assembly includes a support plate, an adjusting bolt is movably connected inside the support plate, the lower end of the adjusting bolt is fixedly connected to the bearing seat, and adjusting nuts are threadedly connected to the outside of the adjusting bolt, which are symmetrically distributed on the upper and lower parts of the support plate.

[0010] Preferably, first check whether the conveyor belt has dents or curled edges. Under normal circumstances, the edge of the conveyor belt should be in contact with the diamond-shaped parts at both ends of the automatic correction roller. When the conveyor belt is dented, the automatic correction roller is placed at the bottom of the conveyor belt. When the conveyor belt is curled, it is placed at the top of the conveyor belt.

[0011] The outer fixing plate and the inner fixing plate are placed on both sides of the conveyor intermediate frame to fix the conveyor intermediate frame. The connecting plate drives the automatic correction roller to move up and down. The connecting plate and the outer fixing plate are fixed in the appropriate position by the third fastener. Then the adjusting nut is tightened to further adjust and reinforce the position of the connecting plate.

[0012] Install the automatic alignment idler. The two sides of the automatic alignment idler should contact the conveyor belt. Next, adjust the force on the automatic alignment idler. Move the automatic alignment idler so that its traction and pulling areas always maintain effective contact with the conveyor belt. The conveyor belt has sufficient pressure, and this pressure is evenly distributed. The entire working surface of the automatic alignment idler should be covered. Install the automatic alignment idler in front of the start or end point of the conveyor belt at a distance three times the width of the conveyor belt. During installation, the vertical central axis inside the automatic alignment idler must be at a 90-100 degree angle to the running direction of the conveyor belt. The vertical central axis is indicated by the pin face at the end of the shaft. When installing the automatic alignment idler on a bidirectional conveyor belt, the vertical central axis must be at a 90-degree angle to the contact point with the conveyor belt.

[0013] Suppose the conveyor belt deviates to the left, it will drift away from the center of the automatic correction roller. The forces at both ends of the automatic correction roller will become unbalanced. This imbalance will cause the tube of the automatic correction roller to swing around its left side. At this time, the rotation direction of the automatic correction roller is not perpendicular to the direction of the conveyor belt. Since the rotation direction of the automatic correction roller prevents the conveyor belt from deviating to the left, it causes the conveyor belt to slide to the right and guide it back to the center position. This correction principle allows the automatic correction roller to automatically guide and correct the conveyor belt as it continues to deviate.

[0014] Preferably, the bracket assembly also includes a top plate installed on the upper inner side of the outer fixing plate, and a mounting plate is fixedly connected to the upper inner side of the top plate. The mounting plate and the inner fixing plate are fixedly connected by a second fastener, and the conveyor intermediate frame is installed between the outer fixing plate and the inner fixing plate.

[0015] Preferably, the surface of the idler roller is covered with a layer of natural rubber, the central pivot is composed of a stainless steel pin and two bushings, the two ends of the automatic correction idler roller are tapered, and the diameter of the idler roller is 170mm.

[0016] As a preferred option, the labyrinth seal adopts a composite design of a three-stage annular groove and a silicone sealing ring.

[0017] Preferably, the end of the mandrel passes through the guide groove and is installed in the bearing housing, with the locking fastener abutting against the mandrel.

[0018] Preferably, the connecting plate is fixedly connected to the outer fixing plate by a third fastener, which is installed in the second adjustment groove.

[0019] Preferably, the support plate and the outer fixing plate are provided, and the outer side of the support plate is provided with an opening groove for removing and installing the adjusting bolt.

[0020] Preferably, the automatic correction roller is installed in front of the start or end point of the conveyor belt at a distance three times the width of the conveyor belt.

[0021] The beneficial effects of this utility model are as follows: the installation method is simple and reliable; the surface of the automatic correction roller is covered with natural rubber, which ensures good contact and friction between the conveyor belt and the surface of the automatic correction roller; it is sensitive to belt deviation, corrects it quickly and instantly without damaging the belt edge; it has a large correction force and is not affected by harsh environments; it reduces the labor required to clean up spilled materials; it controls a long belt distance; it requires less material; it does not require a power source, saving energy; it can be used to control belt deviation caused by any reason; except for critical locations where installation is necessary, one set of automatic correction rollers can control a distance of 50 meters; for long-distance belts, one set of automatic correction rollers can control a distance of 100 meters; and for bidirectional belts, it can control a distance of 30 meters. Attached Figure Description

[0022] Figure 1 The diagram shown is a first three-dimensional structural schematic of the quick-installable automatic alignment roller of this utility model.

[0023] Figure 2 The diagram shows the installation structure of the quick-installable automatic alignment idler roller, conveyor belt, and conveyor intermediate frame of this utility model.

[0024] Figure 3 The diagram shown is a schematic of the quick-installation automatic alignment idler and conveyor belt installation structure of this utility model.

[0025] Figure 4 The diagram shows a three-dimensional structure of the support assembly, lifting and adjusting assembly, and connecting assembly of the quick-installing automatic alignment roller of this utility model.

[0026] Figure 5 The diagram shown is a three-dimensional cross-sectional view of the quick-installable automatic alignment roller of this utility model.

[0027] Figure 6 The diagram shown is a three-dimensional structural schematic of the support assembly of the automatic alignment roller that can be quickly installed according to this utility model.

[0028] Explanation of reference numerals in the attached drawings: 11. Outer fixing plate; 12. Inner fixing plate; 13. First adjusting groove; 14. Guide groove; 15. Second adjusting groove; 16. First fastener; 17. Top plate; 18. Mounting plate; 19. Second fastener; 21. Idler roller; 22. Bearing; 23. Sleeve; 24. Mandrel; 25. Central pivot; 26. Labyrinth seal; 27. End cover; 28. Cap; 31. Connecting plate; 32. Bearing seat; 33. Locking fastener; 41. Support plate; 42. Adjusting bolt; 43. Adjusting nut; 5. Third fastener; 6. Conveyor belt; 7. Conveyor intermediate frame. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0030] Please see Figures 1-6 This utility model provides an embodiment of an automatically correcting idler that can be installed quickly, including a support assembly and an automatically correcting idler. The support assembly is installed on the outside of the intermediate frame 7 of the conveyor. A connecting assembly that moves vertically is installed on the outside of the support assembly through a lifting adjustment assembly. An automatically correcting idler is installed between the connecting assembly and another connecting assembly and is located below the conveyor belt 6. The support assembly includes an outer fixing plate 11 and an inner fixing plate 12. The outer fixing plate 11 has a guide groove 14 and a second adjusting groove 15 that is symmetrically distributed front and back from the inside to the outside. The inner fixing plate 12 has a first adjusting groove 13 that corresponds to the second adjusting groove 15. A first fastener 16 is installed in the first adjusting groove 13 and the second adjusting groove 15. The support assembly and the connecting assembly are connected by a third fastener 5.

[0031] The automatic alignment roller includes a sleeve 23, bearings 22 symmetrically distributed on the outside of the sleeve 23, roller drum 21 mounted on the outside of the two bearings 22, a spindle 24 mounted on the outside of the sleeve 23 via a central pivot 25, a labyrinth seal 26 provided on the outside of the bearings 22, and end caps 27 and caps 28 mounted on both ends of the sleeve 23.

[0032] The connecting assembly includes a connecting plate 31, a bearing seat 32 is fixedly connected to the outside of the connecting plate 31, and locking fasteners 33 are symmetrically distributed front and rear on the bearing seat 32 with internal threads.

[0033] The lifting adjustment assembly includes a support plate 41, an adjusting bolt 42 is movably connected inside the support plate 41, the lower end of the adjusting bolt 42 is fixedly connected to the bearing seat 32, and adjusting nuts 43 are threadedly connected to the outside of the adjusting bolt 42, which are symmetrically distributed on the upper and lower sides of the support plate 41.

[0034] Please see Figures 4-5 In this embodiment, the support assembly also includes a top plate 17 installed on the upper inner side of the outer fixed plate 11. An mounting plate 18 is fixedly connected to the upper inner side of the top plate 17. The mounting plate 18 and the inner fixed plate 12 are fixedly connected by a second fastener 19. The conveyor intermediate frame 7 is installed between the outer fixed plate 11 and the inner fixed plate 12. The surface of the idler roller 21 is covered with a natural rubber layer. The central pivot 25 is composed of a stainless steel pin and two bushings. The two ends of the automatic correction idler are tapered. The diameter of the idler roller 21 is 170mm. The diameter of a normal automatic correction idler is usually 127mm to 152mm. The increased diameter can help increase the pressure and tension of the automatic correction idler on the conveyor belt 6.

[0035] Please see Figure 1 and Figures 4-5In this embodiment, the labyrinth seal 26 adopts a composite design of a three-level annular groove and a silicone sealing ring. The end of the spindle 24 passes through the guide groove 14 and is installed in the bearing seat 32. The locking fastener 33 abuts against the spindle 24. The connecting plate 31 is fixedly connected to the outer fixing plate 11 by the third fastener 5. The third fastener 5 is installed in the second adjusting groove 15. The support plate 41 is connected to the outer fixing plate 11, and the outer side of the support plate 41 is provided with an opening groove for disassembling and assembling the adjusting bolt 42. The automatic correction roller is installed in front of the starting point or ending point of the conveyor belt 6, at a distance three times the width of the conveyor belt 6.

[0036] When working, first check whether there are any dents or curling of the conveyor belt 6. Under normal circumstances, the edge of the conveyor belt 6 should be in contact with the diamond-shaped parts at both ends of the automatic correction roller. When the conveyor belt 6 is dented, the automatic correction roller is placed at the bottom of the conveyor belt 6. When the conveyor belt 6 is curled, it is placed at the top of the conveyor belt 6.

[0037] The outer fixing plate 11 and the inner fixing plate 12 are placed on both sides of the conveyor intermediate frame 7 to fix the conveyor intermediate frame 7. The connecting plate 31 drives the automatic correction roller to move up and down. The connecting plate 31 and the outer fixing plate 11 are fixed in the appropriate position by the third fastener 5. Then the adjusting nut 43 is tightened to further adjust and reinforce the position of the connecting plate 31.

[0038] Install the automatic correction roller. The two sides of the automatic correction roller should contact the conveyor belt 6. Next, adjust the force on the automatic correction roller. Move the automatic correction roller so that its traction and pulling areas always maintain effective contact with the conveyor belt 6. The conveyor belt 6 has sufficient pressure, which is evenly distributed. The entire working surface of the automatic correction roller should be covered. Install the automatic correction roller in front of the start or end point of the conveyor belt 6 at a distance three times the width of the conveyor belt 6. During installation, the vertical central axis inside the automatic correction roller must be at a 90-100 degree angle to the running direction of the conveyor belt 6. The vertical central axis is indicated by the pin face at the end of the shaft. When installing the automatic correction roller on a bidirectional conveyor belt 6, the vertical central axis must be at a 90-degree angle to the contact point of the conveyor belt 6.

[0039] Assuming conveyor belt 6 deviates to the left, it will deviate from the center of the automatic correction roller. The forces at both ends of the automatic correction roller will become unbalanced. This imbalance will cause the tube of the automatic correction roller to swing around its left side. At this time, the rotation direction of the automatic correction roller is not perpendicular to the running direction of conveyor belt 6. Since the rotation direction of the automatic correction roller prevents the conveyor belt 6 from deviating to the left, it causes the conveyor belt 6 to slide down to the right, guiding it back to the center position. This correction principle allows the automatic correction roller to automatically guide and correct the conveyor belt 6 while it continues to deviate.

[0040] Through the above steps, the installation method is simple and reliable. The surface of the automatic correction roller is covered with natural rubber, which ensures good contact and friction between the conveyor belt and the surface of the automatic correction roller. It is sensitive to belt deviation, corrects it quickly and instantly without damaging the belt edge, has a large correction force, and is not affected by harsh environments. It reduces the labor required to clean up spilled materials, controls the belt distance for a long time, uses less material, does not require a power source, and saves energy. It can be used to treat belt deviation caused by any reason to solve the problems of low sensitivity, poor sealing, and insufficient environmental adaptability of deviation devices.

[0041] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A quick-installation automatic alignment idler, comprising a support assembly and an automatic alignment idler; characterized in that: The support assembly is installed on the outside of the conveyor intermediate frame (7). A vertically movable connecting component is installed on the outside of the support assembly via a lifting adjustment component. An automatic correction roller is installed between the connecting component and another connecting component and is located below the conveyor belt (6). The support assembly includes an outer fixed plate (11) and an inner fixed plate (12). The outer fixed plate (11) has a guide groove (14) and a second adjustment groove (15) symmetrically distributed in front and behind, which are opened sequentially from the inside to the outside. The inner fixed plate (12) has a first adjustment groove (13) corresponding to the second adjustment groove (15). A first fastener (16) is installed in the first adjustment groove (13) and the second adjustment groove (15). The support assembly and the connecting component are connected by a third fastener (5). The automatic alignment roller includes a sleeve (23), bearings (22) symmetrically distributed on the outside of the sleeve (23), roller drums (21) are installed on the outside of the two bearings (22), a spindle (24) is installed on the outside of the sleeve (23) via a central pivot (25), a labyrinth seal (26) is provided on the outside of the bearings (22), and end caps (27) and caps (28) are installed at both ends of the sleeve (23); The connecting assembly includes a connecting plate (31), a bearing seat (32) is fixedly connected to the outside of the connecting plate (31), and a locking fastener (33) is symmetrically distributed in front and behind the bearing seat (32) through an internal thread; The lifting adjustment assembly includes a support plate (41), an adjusting bolt (42) is movably connected inside the support plate (41), the lower end of the adjusting bolt (42) is fixedly connected to the bearing seat (32), and the outer side of the adjusting bolt (42) is threaded with adjusting nuts (43) that are symmetrically distributed on the upper and lower sides of the support plate (41).

2. The self-aligning idler roller that can be quickly installed according to claim 1, characterized in that: The bracket assembly also includes a top plate (17) installed on the upper inner side of the outer fixing plate (11). An mounting plate (18) is fixedly connected to the upper inner side of the top plate (17). The mounting plate (18) and the inner fixing plate (12) are fixedly connected by a second fastener (19). The conveyor intermediate frame (7) is installed between the outer fixing plate (11) and the inner fixing plate (12).

3. The self-aligning idler roller that can be quickly installed according to claim 1, characterized in that: The surface of the roller (21) is covered with a natural rubber layer. The central pivot (25) is composed of a stainless steel pin and two bushings. The ends of the automatic correction roller are tapered. The diameter of the roller (21) is 170mm.

4. The self-aligning idler roller that can be quickly installed according to claim 1, characterized in that: The labyrinth seal (26) adopts a composite design of three-stage annular grooves and silicone sealing rings.

5. The quick-installable automatic alignment roller according to claim 1, characterized in that: The end of the spindle (24) passes through the guide groove (14) and is installed in the bearing housing (32), and the locking fastener (33) abuts against the spindle (24).

6. The quick-installable automatic alignment roller according to claim 1, characterized in that: The connecting plate (31) is fixedly connected to the outer fixing plate (11) by the third fastener (5), which is installed in the second adjusting groove (15).

7. The self-aligning idler roller that can be quickly installed according to claim 1, characterized in that: The support plate (41) and the outer fixing plate (11) are provided, and the outer side of the support plate (41) is provided with an opening groove for disassembling and assembling the adjusting bolt (42).

8. The self-aligning idler roller that can be quickly installed according to claim 1, characterized in that: Automatic correction rollers are installed in front of the start or end point of the conveyor belt (6) at a distance three times the width of the conveyor belt (6).