A hydraulic automatic belt alignment mechanism

Abstract

This invention discloses a hydraulic automatic belt alignment mechanism for conveyor belts. It includes a base, on which a roller frame is mounted. A rotating column is fixed at the center of the roller frame and rotatably connected to the base. A fixed vertical plate is also fixed to the base, symmetrically arranged on the left and right sides of the roller frame. An adjusting column is mounted on the fixed vertical plate, and a vertical roller seat is mounted on the adjusting column. The vertical roller seat and the adjusting column are movably connected left and right. A locking device is provided between the adjusting column and the vertical roller seat. A vertical roller is mounted on the vertical roller seat. A hydraulic cylinder is also provided on the base, with one end hinged to the base and the other end having a piston rod. A connecting rod is fixed to the side wall of the rotating column and hinged to the piston rod. A hydraulic adjustment device is provided between the hydraulic cylinder and the vertical roller. The beneficial effect of this invention is that it can be applied to conveyor belts of different widths.

Description

Technical Field

[0001] This invention relates to the field of conveyor belt correction technology, and in particular to a hydraulic automatic correction mechanism for conveyor belts. Background Technology

[0002] During the transmission process of a conveyor belt, belt misalignment may occur, and sometimes the products transported on the conveyor belt may shift due to their placement or other reasons. Therefore, it is necessary to correct the belt misalignment during the transmission process.

[0003] A conveyor belt alignment device is a mechanical device that corrects lateral errors that occur during the forward movement of a roll of material. Displacement-type alignment corrects the lateral edges of the roll by changing its span at the inlet and outlet. This type of alignment consists of a fixed base and one or more rotating devices, known as swing supports, that move around a fixed or virtual rotation point. The maximum rotation angle is ±7.5°. The ideal location for the rotation point is within the inlet range or within a range not exceeding 10% during the alignment process.

[0004] For existing belt alignment devices, the vertical roller seats are generally welded and fixed to the base. Therefore, the distance between the vertical rollers on both sides of the roller frame is always fixed and cannot be adjusted according to the width of the conveyor belt, making it unsuitable for conveyor belts of different widths.

[0005] In summary, there is a current need for a hydraulic automatic belt alignment mechanism that can be applied to conveyor belts of different widths. Summary of the Invention

[0006] The present invention aims to overcome the shortcomings of existing technologies where vertical roller seats are generally welded and fixed to the base, thus the distance between the vertical rollers on both sides of the roller frame is always fixed, making it impossible to adjust the distance adaptively according to the width of the conveyor belt and thus unsuitable for conveyor belts of different widths. The present invention provides a hydraulic automatic belt correction mechanism that can be adapted to conveyor belts of different widths.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A hydraulic automatic belt alignment mechanism includes a base, a roller frame on the base, a rotating column fixed at the center of the roller frame, the rotating column being mounted on and rotatably connected to the base, a fixed vertical plate fixed on the base, the fixed vertical plates being symmetrically arranged on the left and right sides of the roller frame, an adjusting column mounted on the fixed vertical plate, a vertical roller seat mounted on the adjusting column, the vertical roller seat being movably connected to the adjusting column, a locking device being provided between the adjusting column and the vertical roller seat, a vertical roller being mounted on the vertical roller seat, a hydraulic cylinder on the base, one end of the hydraulic cylinder being hinged to the base, the other end of the hydraulic cylinder being provided with a piston rod, a connecting rod fixed to the side wall of the rotating column, the connecting rod being hinged to the piston rod, and a hydraulic adjustment device being provided between the hydraulic cylinder and the vertical roller.

[0009] The idler frame is equipped with drive rollers, and the conveyor belt runs on these rollers to transport goods. When the conveyor belt deviates and approaches the left or right vertical rollers, the edge of the conveyor belt comes into contact with the periphery of the vertical roller, generating friction and causing the vertical roller to rotate. At this time, the hydraulic adjustment device supplies oil to the hydraulic cylinder according to the rotation of the vertical roller, driving the piston rod on the hydraulic cylinder to move. Through the transmission action of the connecting rod, this causes the rotating column and the idler frame to deflect, so that the drive roller on the idler frame forms a certain angle with the deviated conveyor belt. At this time, the drive roller generates an oblique friction force with the deviated conveyor belt, correcting the deviated conveyor belt towards the center position of the idler frame, thus achieving the purpose of correction. The structure is simple and easy to control. When it is necessary to adapt to conveyor belts of different widths, simply slide the vertical roller seat on the adjustment column to match the distance between the two vertical rollers with the width of the target conveyor belt. Finally, the position of the vertical roller seat is locked by the locking device. The adjustment is simple and the operation is convenient.

[0010] Preferably, the vertical roller base includes a movable base plate with an adjustment column through hole matching the adjustment column. The movable base plate is mounted on the adjustment column through the adjustment column through the adjustment column through the through hole and is movably connected to it left and right. A guide column parallel to the adjustment column is also fixed on the fixed vertical plate. The movable base plate has a guide column through hole matching the guide column, and the guide column is placed in the guide column through hole and slidably connected to it. The design of the guide column and guide column through hole guides and limits the left and right movement of the movable base plate on the adjustment column, improving motion accuracy.

[0011] Preferably, the adjusting column and the fixed vertical plate are fixedly connected. The locking device includes a positioning bolt. The side wall of the movable base plate is provided with a threaded through hole matching the positioning bolt. The positioning bolt is installed in the threaded through hole and threadedly connected to it. The side wall of the adjusting column is provided with several positioning screw holes matching the positioning bolt. The positioning screw holes are distributed linearly at intervals on the adjusting column, and the positioning screw holes and the threaded through holes are located in the same plane. As one type of adjusting structure, during adjustment, the target positioning screw hole with a suitable position is selected according to the width of the target conveyor belt. The movable base plate on the adjusting column is slidably adjusted to move the threaded through hole to the target positioning screw hole for alignment, so that the distance between the vertical rollers on both sides matches the width of the target conveyor belt. Then, the positioning bolt is passed through the threaded through hole and screwed into the target positioning screw hole to complete the position locking of the movable base plate. The structure is simple and the operation is convenient.

[0012] Preferably, the adjusting column and the fixed vertical plate are rotatably connected. The outer wall of the adjusting column is provided with an external adjusting thread, and the inner wall of the adjusting column through hole is provided with an internal adjusting thread that matches the external adjusting thread. The adjusting column and the adjusting column through hole are threadedly connected. As another adjustment structure, during adjustment, the adjusting column is rotated. At this time, through the threaded engagement between the adjusting column and the adjusting column through hole, and the limiting effect of the guide column and the guide column through hole, the movable base plate will move along the adjusting column. Then, according to the width of the target conveyor belt, the movable base plate is controlled to move to the target position so that the distance between the vertical rollers on both sides matches the width of the target conveyor belt. The structure is simple and the adjustment is convenient.

[0013] Preferably, a rack is fixed to the side wall of the guide post, and the locking device includes a locking tooth block. The inner wall of the guide post through hole has a locking tooth block groove that matches the locking tooth block. The locking tooth block is placed in the locking tooth block groove and slidably connected to it. One side of the locking tooth block has locking teeth that match the rack. The other side of the locking tooth block and the bottom surface of the locking tooth block groove are connected by a compression spring. A lever is also fixed to the other side of the locking tooth block. The bottom surface of the locking tooth block groove has a lever through hole that matches the lever. The lever passes through the lever through hole and is placed outside the movable base plate. The lever and the lever through hole are slidably connected. In its natural state, the locking teeth on the locking tooth block press against the rack of the guide post under the elastic force of the compression spring. At this time, the movable base plate and the adjusting post are locked, improving the fixing effect of the movable base plate. When adjustment is needed, simply pull up the lever to separate the locking teeth on the locking block from the rack on the guide post, thereby releasing the locking state between the movable base plate and the adjusting post. Then, the position of the movable base plate can be adjusted by rotating the adjusting post. The structure is simple and the operation is convenient.

[0014] Preferably, the hydraulic cylinder has an internal cavity, in which a piston is slidably connected. The other end of the hydraulic cylinder has a piston rod through-hole matching the piston rod. The piston rod is placed within and slidably connected to the piston rod through-hole. One end of the piston rod is fixed to the piston, and the other end is hinged to a connecting rod. The hydraulic adjustment device includes a pump fixed to a movable base plate, a drive shaft on the pump, and a vertical roller mounted on the drive shaft. The sidewall of the hydraulic cylinder cavity has a fluid delivery through-hole matching the pump, located on both sides of the piston. The fluid delivery through-hole and the pump are connected by a fluid guide pipe. When the conveyor belt deviates and approaches one of the vertical rollers, the edge of the conveyor belt comes into contact with the periphery of the vertical roller, generating friction. This causes the vertical roller and drive shaft to rotate, and the rotation of the drive shaft in turn drives the hydraulic pump to work. Oil is supplied to one side of the hydraulic cylinder cavity through the liquid guide pipe, thereby driving the piston rod on the hydraulic cylinder to move. Through the transmission action of the connecting rod, the rotating column and idler frame deflect, so that the drive roller on the idler frame forms a certain angle with the deviated conveyor belt. At this time, the drive roller generates an oblique friction force with the deviated conveyor belt, correcting the deviated conveyor belt towards the center position of the idler frame, thus achieving the purpose of correction. The structure is simple and easy to control.

[0015] Preferably, one end of the connecting rod is fixed to the side wall of the rotating column, and the other end of the connecting rod is fixed with an ear plate. The other end of the piston rod is provided with an ear plate groove that matches the ear plate. An ear plate pin is fixed in the ear plate groove, and the ear plate is provided with an ear plate pin hole that matches the ear plate pin. The ear plate is installed in the ear plate groove and hinged to it through the engagement of the ear plate pin hole and the ear plate pin. When the piston rod extends or retracts, it drives the idler frame to rotate under the transmission of the connecting rod, causing the transmission roller to generate an oblique friction force with the misaligned conveyor belt, correcting the misaligned conveyor belt towards the center position of the idler frame, thus achieving the purpose of correction. The piston rod, connecting rod, and piston rod are hinged together by a pin, which is simple in structure and easy to process.

[0016] Preferably, a locking block is fixed on the side wall of the drive shaft, and the vertical roller is provided with a vertical roller groove that matches the drive shaft. The drive shaft and the vertical roller groove are inserted into each other. A vertical sliding groove that matches the locking block is provided on the side wall of the vertical roller groove. One end of the vertical sliding groove is located at the opening of the vertical roller groove. A transverse sliding groove that matches the locking block is provided on the side wall of the other end of the vertical sliding groove. One end of the transverse sliding groove is connected to the vertical sliding groove. A locking groove that matches the locking block is provided on the side wall of the other end of the transverse sliding groove. The locking groove is located on the side close to the opening of the vertical roller groove. A pressure plate is provided inside the vertical roller groove. The pressure plate and the vertical roller groove are slidably connected. The pressure plate and the bottom surface of the vertical roller groove are connected by a compression spring. During installation, the operator aligns one end of the vertical slide groove with the locking block, then inserts the vertical roller groove on the vertical roller into the drive shaft. During insertion, when the locking block moves to the other end of the vertical slide groove (at which point the second compression spring is compressed), the vertical roller is rotated horizontally, causing the locking block to move along the transverse slide groove to the locking slot. Then, the vertical roller is released, and under the elastic force of the second compression spring, the vertical roller will spring upward, causing the locking block to automatically engage in the locking slot, thus achieving the installation and fixation between the vertical roller and the drive shaft. The structure is simple, the operation is convenient, and the fixing effect is good.

[0017] Preferably, the bottom surface of the vertical roller groove is provided with a second threaded through hole, and a clamping screw is internally threaded into the second threaded through hole. One end of the clamping screw is located outside the vertical roller and is threaded with a fastening nut. The other end of the clamping screw is placed inside the vertical roller groove and faces the pressure plate. After the vertical roller and the drive shaft are fixed together, rotating the clamping screw will cause the pressure plate to be pressed tightly onto the drive shaft, thus locking the vertical roller and the drive shaft together. This prevents the locking block from disengaging from the slot and causing the connection between the vertical roller and the drive shaft to loosen, further improving the fixing effect between the two.

[0018] Preferably, a pressure block is fixed to the other end of the clamping screw, and a friction pad matching the pressure block is fixed to the pressure plate. The friction pad design protects the contact surface between the pressure block and the pressure plate, preventing wear between them.

[0019] The beneficial effects of this invention are: simple structure and convenient control; applicable to conveyor belts of different widths; simple adjustment and convenient operation; improved motion accuracy; improved installation and fixing effect between the vertical roller and the drive shaft; and protection for the pressure plate and pressure block. Attached Figure Description

[0020] Figure 1 This is the front view of the upper correction mechanism;

[0021] Figure 2 This is the front view of the lower correction mechanism;

[0022] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0023] Figure 4 This is a top view of the lower correction mechanism;

[0024] Figure 5 This is a schematic diagram of the first proposed locking device.

[0025] Figure 6 This is a schematic diagram of the second design of the locking device;

[0026] Figure 7 This is a structural connection diagram between the vertical roller and the vertical roller base;

[0027] Figure 8 yes Figure 7 A partial sectional view at point BB;

[0028] Figure 9 yes Figure 7 Sectional view at point CC.

[0029] In the diagram: 1. Base, 2. Roller frame, 3. Rotary column, 4. Fixed vertical plate, 5. Adjusting column, 6. Friction pad, 7. Vertical roller, 8. Hydraulic cylinder, 9. Piston rod, 10. Connecting rod, 11. Movable base plate, 12. Adjusting column through hole, 13. Guide column, 14. Guide column through hole, 15. Positioning bolt, 16. Threaded through hole one, 17. Positioning screw hole, 18. External adjusting thread, 19. Internal adjusting thread, 20. Rack, 21. Locking tooth block, 22. Locking tooth block groove, 23. Locking tooth, 24. Compression spring one, 25. Pulling rod, 26. Pulling rod through hole, 27. Hydraulic cylinder cavity, 28. Piston, 29. Liquid pump, 30. Drive shaft, 31. Liquid delivery through hole, 32. Ear plate, 33. 34. Ear plate groove, 35. Fastening nut, 36. Pressure block, 37. Clamping block, 38. Vertical roller groove, 39. Vertical slide groove, 40. Horizontal slide groove, 41. Clamping groove, 42. Pressure plate, 43. Compression spring two, 44. Threaded through hole two, 45. Clamping screw. Detailed Implementation

[0030] The present invention will now be further described with reference to the accompanying drawings and specific embodiments.

[0031] like Figure 1 and Figure 2 , Figure 3 Figure 4In the embodiments described, a hydraulic automatic belt alignment mechanism for a conveyor belt is divided into an upper alignment mechanism and a lower alignment mechanism. Both the upper and lower alignment mechanisms include a base 1, on which a roller frame 2 is provided. A rotating column 3 is fixed at the middle position of the roller frame 2. The rotating column 3 is mounted on the base 1 and rotatably connected to it. A fixed vertical plate 4 is also fixed on the base 1. The fixed vertical plate 4 is symmetrically arranged on the left and right sides of the roller frame 2. An adjusting column 5 is installed on the fixed vertical plate 4. A vertical roller seat is provided on the adjusting column 5. The vertical roller seat and the adjusting column 5 are movably connected left and right. A locking device is provided between the adjusting column 5 and the vertical roller seat. A vertical roller 7 is installed on the vertical roller seat. A hydraulic cylinder 8 is also provided on the base 1. One end of the hydraulic cylinder 8 is hinged to the base 1. The other end of the hydraulic cylinder 8 is provided with a piston rod 9. A connecting rod 10 is fixed on the side wall of the rotating column 3. The connecting rod 10 and the piston rod 9 are hinged together. A hydraulic adjustment device is provided between the hydraulic cylinder 8 and the vertical roller. The difference between the upper and lower correction mechanisms is that the roller frame 2 of the upper correction mechanism is designed with upward folding at both ends to accommodate the load on the conveyor belt (such as mineral powder and coke powder); while the roller frame 2 of the lower correction mechanism is used in the section of the conveyor belt without load, and its overall structure is straight.

[0032] like Figure 5 As shown, the vertical roller seat includes a movable base plate 11. The movable base plate 11 is provided with an adjustment column through hole 12 that matches the adjustment column 5. The movable base plate 11 is installed on the adjustment column 5 through the adjustment column through hole 12 and is movably connected to it on the left and right. The fixed vertical plate 4 is also fixed with a guide column 13 that is parallel to the adjustment column 5. The movable base plate 11 is provided with a guide column through hole 14 that matches the guide column 13. The guide column 13 is placed in the guide column through hole 14 and is slidably connected to it.

[0033] The first option for the locking device, such as Figure 5 As shown, the adjusting column 5 and the fixed vertical plate 4 are fixedly connected. The locking device includes a positioning bolt 15. The side wall of the movable base plate 11 is provided with a threaded through hole 16 that matches the positioning bolt 15. The positioning bolt 15 is installed in the threaded through hole 16 and threadedly connected to it. The side wall of the adjusting column 5 is provided with a number of positioning screw holes 17 that match the positioning bolt 15. The positioning screw holes 17 are distributed in a straight line at intervals on the adjusting column 5. The positioning screw holes 17 and the threaded through hole 16 are located in the same plane.

[0034] During adjustment, select the target positioning screw hole with an appropriate position according to the width of the target conveyor belt, and slide the movable base plate 11 on the adjusting column 5 to align the threaded through hole 16 with the target positioning screw hole 17, so that the distance between the vertical rollers 7 on both sides matches the width of the target conveyor belt. Then, pass the positioning bolt 15 through the threaded through hole 16 and screw it into the target positioning screw hole 17 to lock the position of the movable base plate 11.

[0035] The second option for the locking device, such as Figure 6 As shown, the adjusting column 5 and the fixed vertical plate 4 are rotatably connected. The outer wall of the adjusting column 5 is provided with an external adjusting thread 18, and the inner wall of the adjusting column through hole 12 is provided with an internal adjusting thread 19 that matches the external adjusting thread 18. The adjusting column 5 and the adjusting column through hole 12 are threadedly connected.

[0036] like Figure 6 As shown, a rack 20 is fixed on the side wall of the guide post 13. The locking device includes a locking tooth block 21. The inner wall of the guide post through hole 14 is provided with a locking tooth block groove 22 that matches the locking tooth block 21. The locking tooth block 21 is placed in the locking tooth block groove 22 and slidably connected to it. One side of the locking tooth block 21 is provided with a locking tooth 23 that matches the rack 20. The other side of the locking tooth block 21 and the bottom surface of the locking tooth block groove 22 are connected by a compression spring 24. A pull rod 25 is also fixed on the other side of the locking tooth block 21. The bottom surface of the locking tooth block groove 22 is provided with a pull rod through hole 26 that matches the pull rod 25. The pull rod 25 passes through the pull rod through hole 26 and is placed outside the movable base plate 11. The pull rod 25 and the pull rod through hole 26 are slidably connected.

[0037] When adjustment is needed, simply pull up lever 25 to separate the locking teeth 23 on locking block 21 from the rack 20 on guide post 13, thus releasing the locking state between movable base plate 11 and adjusting post 5. During adjustment, rotate adjusting post 5. At this time, through the threaded engagement of adjusting post 5 and adjusting post through hole 12, and the limiting effect of guide post 13 and guide post through hole 14, movable base plate 11 will move along adjusting post 5. Then, according to the width of the target conveyor belt, control movable base plate 11 to move to the target position so that the distance between the vertical rollers 7 on both sides matches the width of the target conveyor belt. Finally, release lever 25 to allow locking teeth 23 to re-engage on rack 20.

[0038] like Figure 4 As shown, the hydraulic cylinder 8 has a hydraulic cylinder cavity 27 inside, and a piston 28 is slidably connected inside the hydraulic cylinder cavity 27. The other end of the hydraulic cylinder 8 has a piston rod through hole that matches the piston rod 9. The piston rod 9 is placed in the piston rod through hole and slidably connected to it. One end of the piston rod 9 is fixed to the piston 28, and the other end of the piston rod 9 is hinged to the connecting rod 10. The hydraulic adjustment device includes a hydraulic pump 29 fixed on the movable base plate 11. The hydraulic pump 29 has a drive shaft 30. The vertical roller 7 is installed on the drive shaft 30. The side wall of the hydraulic cylinder cavity 27 has a liquid delivery through hole 31 that matches the hydraulic pump 29. The liquid delivery through holes 31 are located on both sides of the piston 28. The liquid delivery through holes 31 and the hydraulic pump 29 are connected by a liquid guide pipe.

[0039] like Figure 4As shown, one end of the connecting rod 10 is fixed to the side wall of the rotating column 3, and the other end of the connecting rod 10 is fixed with an ear plate 32. The other end of the piston rod 9 is provided with an ear plate groove 33 that matches the ear plate 32. An ear plate pin is fixed in the ear plate groove 33. The ear plate 32 is provided with an ear plate pin hole that matches the ear plate pin. The ear plate 32 is installed in the ear plate groove 33 and is hinged to it through the cooperation of the ear plate pin hole and the ear plate pin.

[0040] like Figure 7 , Figure 8 and Figure 9 As shown, a locking block 36 is fixed on the side wall of the drive shaft 30. The vertical roller 7 is provided with a vertical roller groove 37 that matches the drive shaft 30. The drive shaft 30 and the vertical roller groove 37 are inserted into each other. The side wall of the vertical roller groove 37 is provided with a vertical sliding groove 38 that matches the locking block 36. One end of the vertical sliding groove 38 is located at the opening of the vertical roller groove 37. The side wall of the other end of the vertical sliding groove 38 is provided with a transverse sliding groove 39 that matches the locking block 36. One end of the transverse sliding groove 39 is connected to the vertical sliding groove 38. The side wall of the other end of the transverse sliding groove 39 is provided with a locking groove 40 that matches the locking block 36. The locking groove 40 is located on the side close to the opening of the vertical roller groove 37. A pressure plate 41 is provided inside the vertical roller groove 37. The pressure plate 41 and the vertical roller groove 37 are slidably connected. The pressure plate 41 and the bottom surface of the vertical roller groove 37 are connected by a compression spring 42.

[0041] The bottom surface of the vertical roller groove 37 is provided with a threaded through hole 43. A clamping screw 44 is connected to the threaded through hole 43. One end of the clamping screw 44 is located outside the vertical roller 7 and is threaded with a fastening nut 34. The other end of the clamping screw 44 is placed inside the vertical roller groove 37 and is directly opposite the pressure plate 41.

[0042] A pressure block 35 is fixed to the other end of the clamping screw 44, and a friction pad 6 matching the pressure block 35 is fixed on the pressure plate 41.

[0043] When installing the vertical roller 7 and the drive shaft 30, the operator aligns one end of the vertical slide groove 38 with the locking block 36, and then inserts the vertical roller groove 37 on the vertical roller 7 into the drive shaft 30. During the insertion process, when the locking block 36 moves to the other end of the vertical slide groove 38 (at this time, the compression spring 42 is compressed), the vertical roller 7 is rotated horizontally, causing the locking block 36 to move along the transverse slide groove 39 to the locking slot 40. Then, the vertical roller 7 is released. At this time, under the elastic force of the compression spring 42, the vertical roller 7 will be driven to spring upward, so that the locking block 36 automatically locks into the locking slot 40, thus realizing the installation and fixation between the vertical roller 7 and the drive shaft 30. After the vertical roller 7 is fixed to the drive shaft 30, the clamping screw 44 is rotated to press the pressure plate 41 tightly onto the drive shaft 30, thus locking the vertical roller 7 and the drive shaft 30 and preventing the locking block 36 from coming out of the slot 40, which would cause the connection between the vertical roller 7 and the drive shaft 30 to loosen.

[0044] Working principle: When the conveyor belt deviates and approaches the left or right vertical roller 7, the edge of the conveyor belt will come into contact with the periphery of the vertical roller 7 and generate friction, causing the vertical roller 7 to rotate. This rotation of the vertical roller 7 and the drive shaft 30 will then drive the hydraulic pump 29 to work, supplying oil to one side of the hydraulic cylinder cavity 27 through the liquid guide pipe. This drives the piston rod 9 on the hydraulic cylinder 8 to move, and through the transmission action of the connecting rod 10, it causes the rotating column 3 and the idler frame 2 to deflect. This causes the transmission roller on the idler frame 2 to form a certain angle with the deviated conveyor belt. At this time, the transmission roller generates an oblique friction force with the deviated conveyor belt, correcting the deviated conveyor belt towards the center position of the idler frame 2, thus achieving the purpose of correction.

Claims

1. A hydraulic automatic belt alignment mechanism for conveyor belts, characterized in that, The system includes a base (1), on which a roller frame (2) is mounted. A rotating column (3) is fixed at the middle of the roller frame (2). The rotating column (3) is mounted on the base (1) and rotatably connected to it. A fixed vertical plate (4) is also fixed on the base (1). The fixed vertical plate (4) is symmetrically arranged on the left and right sides of the roller frame (2). An adjusting column (5) is mounted on the fixed vertical plate (4). A vertical roller seat is mounted on the adjusting column (5). The vertical roller seat and the adjusting column (5) are movably connected left and right. A locking device is provided between the adjusting column (5) and the vertical roller seat. A vertical roller (7) is mounted on the vertical roller seat. A hydraulic cylinder (8) is also provided on the base (1). One end of the hydraulic cylinder (8) and... The base (1) is hinged together. The other end of the hydraulic cylinder (8) is provided with a piston rod (9). A connecting rod (10) is fixed on the side wall of the rotating column (3). The connecting rod (10) and the piston rod (9) are hinged together. A hydraulic adjustment device is provided between the hydraulic cylinder (8) and the vertical roller. The vertical roller seat includes a movable base plate (11). The movable base plate (11) is provided with an adjustment column through hole (12) that matches the adjustment column (5). The movable base plate (11) is installed on the adjustment column (5) through the adjustment column through hole (12) and is movably connected to it to the left and right. A guide column (13) parallel to the adjustment column (5) is also fixed on the fixed vertical plate (4). A guide column that matches the guide column (13) is provided on the movable base plate (11). The guide post (13) is placed in the guide post through hole (14) and slidably connected to it. The hydraulic cylinder (8) has a hydraulic cylinder cavity (27) inside. A piston (28) is slidably connected in the hydraulic cylinder cavity (27). The other end of the hydraulic cylinder (8) has a piston rod through hole that matches the piston rod (9). The piston rod (9) is placed in the piston rod through hole and slidably connected to it. One end of the piston rod (9) is fixed to the piston (28). The other end of the piston rod (9) is hinged to the connecting rod (10). The hydraulic adjustment device includes a liquid pump (29) fixed on the movable base plate (11). A drive shaft (30) is provided on the liquid pump (29). The vertical roller (7) is installed... Mounted on the drive shaft (30), the side wall of the hydraulic cylinder cavity (27) is provided with a liquid delivery through hole (31) that matches the liquid pump (29). The liquid delivery through hole (31) is located on both sides of the piston (28). The liquid delivery through hole (31) and the liquid pump (29) are connected by a liquid guide pipe. A locking block (36) is fixed on the side wall of the drive shaft (30). The vertical roller (7) is provided with a vertical roller groove (37) that matches the drive shaft (30). The drive shaft (30) and the vertical roller groove (37) are inserted into each other. The side wall of the vertical roller groove (37) is provided with a vertical sliding groove (38) that matches the locking block (36). One end of the vertical sliding groove (38) is located at the opening of the vertical roller groove (37).The vertical slide groove (38) has a transverse slide groove (39) on its side wall at the other end, which matches the locking block (36). One end of the transverse slide groove (39) is connected to the vertical slide groove (38). The other end of the transverse slide groove (39) has a locking groove (40) on its side wall, which matches the locking block (36). The locking groove (40) is located on the side near the opening of the vertical roller groove (37). A pressure plate (41) is provided inside the vertical roller groove (37). The pressure plate (41) and the vertical roller groove (37) are slidably connected. The pressure plate (41) and the bottom surface of the vertical roller groove (37) are connected by a compression spring (42).

2. The hydraulic automatic belt alignment mechanism for a conveyor belt according to claim 1, characterized in that, The adjusting column (5) and the fixed vertical plate (4) are fixedly connected. The locking device includes a positioning bolt (15). The side wall of the movable base plate (11) is provided with a threaded through hole (16) that matches the positioning bolt (15). The positioning bolt (15) is installed in the threaded through hole (16) and threadedly connected to it. The side wall of the adjusting column (5) is provided with a number of positioning screw holes (17) that match the positioning bolt (15). The positioning screw holes (17) are distributed in a straight line at intervals on the adjusting column (5). The positioning screw holes (17) and the threaded through hole (16) are located in the same plane.

3. The hydraulic automatic belt alignment mechanism for a conveyor belt according to claim 1, characterized in that, The adjusting column (5) and the fixed vertical plate (4) are rotatably connected. The outer wall of the adjusting column (5) is provided with an external adjusting thread (18), and the inner wall of the adjusting column through hole (12) is provided with an internal adjusting thread (19) that matches the external adjusting thread (18). The adjusting column (5) and the adjusting column through hole (12) are threadedly connected.

4. A hydraulic automatic belt alignment mechanism according to claim 3, characterized in that, A rack (20) is fixed on the side wall of the guide post (13). The locking device includes a locking tooth block (21). The inner wall of the guide post through hole (14) is provided with a locking tooth block groove (22) that matches the locking tooth block (21). The locking tooth block (21) is placed in the locking tooth block groove (22) and slidably connected to it. One side of the locking tooth block (21) is provided with a locking tooth (23) that matches the rack (20). The other side of the locking tooth block (21) and the bottom surface of the locking tooth block groove (22) are connected by a compression spring (24). A pull rod (25) is also fixed on the other side of the locking tooth block (21). The bottom surface of the locking tooth block groove (22) is provided with a pull rod through hole (26) that matches the pull rod (25). The pull rod (25) passes through the pull rod through hole (26) and is placed outside the movable base plate (11). The pull rod (25) and the pull rod through hole (26) are slidably connected.

5. A hydraulic automatic belt alignment mechanism according to claim 1, characterized in that, One end of the connecting rod (10) is fixed to the side wall of the rotating column (3), and the other end of the connecting rod (10) is fixed with an ear plate (32). The other end of the piston rod (9) is provided with an ear plate groove (33) that matches the ear plate (32). An ear plate pin is fixed in the ear plate groove (33). An ear plate pin hole that matches the ear plate pin is provided on the ear plate (32). The ear plate (32) is installed in the ear plate groove (33) and hinged to it through the cooperation of the ear plate pin hole and the ear plate pin.

6. A hydraulic automatic belt alignment mechanism according to claim 1, characterized in that, The bottom surface of the vertical roller groove (37) is provided with a threaded through hole two (43), and a clamping screw (44) is threadedly connected inside the threaded through hole two (43). One end of the clamping screw (44) is located outside the vertical roller (7) and a fastening nut (34) is threadedly connected to it. The other end of the clamping screw (44) is placed inside the vertical roller groove (37) and faces the pressure plate (41).

7. A hydraulic automatic belt alignment mechanism according to claim 6, characterized in that, The other end of the clamping screw (44) is fixed with a pressure block (35), and a friction pad (6) matching the pressure block (35) is fixed on the pressure plate (41).

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