Groove type automatic deviation rectifying system

Abstract

The utility model discloses a groove type automatic deviation rectifying system, which relates to the technical field of deviation rectifying of conveying belts and comprises an adjusting support, a carrier roller supporting arm is rotatably connected above the adjusting support through a rotary pivot, and two ends of the carrier roller supporting arm are both inclined upwards and symmetrical about a rotary axis. A flat roller is horizontally installed in the middle of the upper portion of the carrier roller supporting arm, conical rollers are arranged at the two ends of the flat roller, the two conical rollers are symmetrically installed above the carrier roller supporting arm in a V shape, and the adjacent ends of the two flat rollers are large-diameter ends; the rotary pivot comprises a sleeve and a fixed shaft, the sleeve is fixedly connected with the carrier roller supporting arm, the fixed shaft is fixedly connected with the adjusting support, the sleeve is rotationally connected to the outer side of the top end of the fixed shaft through a thrust bearing and a needle bearing, the thrust bearing is located at the top end of the fixed shaft, and the needle bearing is connected to the outer side of the fixed shaft in a sleeving mode. The groove type automatic deviation rectifying system is simple in structure, the edge of the belt cannot be abraded, and deviation rectifying is stable and sensitive.

Description

Technical Field

[0001] The utility model relates to the technical field of conveyor belt deviation correction, in particular to a trough type automatic deviation correction system. Background Art

[0002] During the operation of the belt conveyor, problems such as material adhesion, spillage, uneven flow, and improper installation of the roller frame can easily lead to belt deviation, which is a common and serious fault. Deviation not only damages the conveyor belt, but also increases the axial force of the roller, roller and other components, affecting production.

[0003] Existing correction devices such as differential self-aligning rollers and hydraulic / electric control systems have problems such as unsatisfactory effects, easy wear of belt edges, and control failure. Among them, rotary correction devices are widely used because of their low cost and ability to automatically adjust the correction force according to the degree of deviation. However, due to their unpowered design and reliance on friction drive, the correction response is not sensitive enough and they cannot respond quickly to belt deviation in time, affecting their correction effect.

[0004] Therefore, it is necessary to propose a slot-type automatic deviation correction system to solve the above problems. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] The utility model aims to provide a slot-type automatic deviation-correcting system which has a simple structure, will not wear the edge of the belt and has sensitive deviation-correcting properties, so as to solve the problems raised in the above-mentioned background technology.

[0007] (II) Technical solution

[0008] To achieve the above purpose, the utility model is implemented by the following technical solutions: a trough type automatic deviation correction system, including an adjustment bracket, a roller support arm is rotatably connected to the upper part of the adjustment bracket through a slewing pivot, both ends of the roller support arm are inclined upward and symmetrical to the rotation axis, a flat roller is horizontally installed in the middle of the upper part of the roller support arm, both ends of the flat roller are provided with a tapered roller, the two tapered rollers are symmetrically installed in a V shape on the upper part of the roller support arm, and the adjacent ends of the two flat rollers are large diameter ends;

[0009] The swivel pivot includes a sleeve and a fixed shaft, the sleeve is fixedly connected to the roller support arm, the fixed shaft is fixedly connected to the adjustment bracket, the sleeve is rotatably connected to the outer side of the top end of the fixed shaft through a thrust bearing and a needle bearing, the thrust bearing is located at the top end of the fixed shaft, and the needle bearing is sleeved on the outer side of the fixed shaft.

[0010] Preferably, a limiting ring groove is provided on the outer side of the top end of the fixed shaft, and a screw is threadedly connected at a position on the side wall of the sleeve corresponding to the limiting ring groove.

[0011] Preferably, a nut is fixedly connected to the outer side of the sleeve, the screw is threadedly connected to the sleeve via the nut, and a gasket is sleeved on the outer side of the screw.

[0012] Preferably, the small diameter end of the tapered roller is fixedly connected to the roller support arm via an adjusting bolt.

[0013] Preferably, the outer sides of the tapered roller and the flat roller are both coated with a wear-resistant rubber layer.

[0014] Preferably, the adjusting bracket comprises:

[0015] A length adjustment frame, the length adjustment frame comprises a support frame and a movable frame, both ends of the support frame are horizontally slidably connected with the movable frame, and the movable frame and the support frame are fixed in place by fastening bolts;

[0016] A height adjustment frame, the height adjustment frame includes an end plate and a height adjustment frame, the movable frame is fixedly connected to the height adjustment frame by a height adjustment bolt, the movable frame is fixedly connected to the end plate by a first bolt, a strip hole is opened on the end plate along its vertical direction for the first bolt to pass through, the height adjustment frame is fixedly connected to the end plate by a second bolt, and a plurality of through holes are opened on the end plate along its vertical direction for the second bolt to pass through.

[0017] Preferably, the support frame includes a limiting cylinder, the movable frame includes a sliding rod, the limiting cylinder is sleeved on the outer side of the sliding rod, and the outer side of the limiting cylinder is threadedly connected with a fastening bolt.

[0018] Preferably, the movable frame and the height-adjustable frame are respectively located on both sides of the end plate, and a fixed block is fixedly connected to one end of the movable frame away from the support frame. The fixed block is fixedly connected to the height-adjustable frame through a height-adjustable bolt, and the fixed block passes through the end plate through a U-shaped hole.

[0019] (III) Beneficial effects

[0020] Compared with the prior art, the utility model provides a slot-type automatic deviation correction system, which has the following beneficial effects:

[0021] 1. The trough type automatic deviation correction system is provided with a roller support arm rotating with the tapered roller, and a flat roller and a tapered roller are installed on the roller support arm. Due to the different roller surface line speeds at both ends of the tapered roller, the friction between the belt and the tapered roller on the offset side increases, and the tapered roller on the offset side of the belt is forced to rotate forward with the belt. The tapered roller and the flat roller are inclined relative to the movement direction of the belt. The belt is corrected under the action of the flat roller. The structure is simple and will not damage the belt edge.

[0022] 2. The trough-type automatic deviation correction system supports the roller support arm in the vertical direction by arranging the thrust bearing to reduce friction. At the same time, the roller support arm is prevented from swinging in the vertical direction by arranging the needle bearing. When the belt deviates, it can more easily drive the roller support arm to rotate, thereby improving its running stability and sensitivity. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional schematic diagram of the structure of the utility model;

[0024] Figure 2 It is a front view schematic diagram of the structure of the utility model;

[0025] Figure 3 It is a side view schematic diagram of the structure of the utility model;

[0026] Figure 4 It is a cross-sectional schematic diagram of the rotary pivot of the utility model.

[0027] In the figure: 1. tapered roller; 2. adjustment bracket; 3. flat roller; 4. swivel pivot; 5. roller support arm; 6. support frame; 7. fastening bolts; 8. movable frame; 9. end plate; 10. height adjustment frame; 11. strip hole; 12. height adjustment bolt; 13. fixing block; 14. through hole; 15. U-shaped hole; 16. thrust bearing; 17. limit ring groove; 18. sleeve; 19. fixed shaft; 20. needle bearing; 21. nut; 22. gasket; 23. screw; 24. adjusting bolt. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0029] See also Figure 1-4 As shown, a trough type automatic deviation correction system comprises an adjustment bracket 2, the upper part of the adjustment bracket 2 is rotatably connected to a roller support arm 5 through a slewing pivot 4, both ends of the roller support arm 5 are inclined upward and symmetrical to the rotation axis, a flat roller 3 is horizontally installed in the middle part of the upper part of the roller support arm 5, both ends of the flat roller 3 are provided with a tapered roller 1, the two tapered rollers 1 are symmetrically installed in a V shape on the upper part of the roller support arm 5, and the adjacent ends of the two flat rollers 3 are large diameter ends;

[0030] When the belt deviates, due to the different roller surface linear speeds at both ends of the tapered roller 1, the friction between the belt and the tapered roller 1 on the offset side increases, and the tapered roller 1 on the offset side of the belt is forced to rotate forward with the belt. The tapered roller 1 and the flat roller 3 are inclined relative to the movement direction of the belt. When the belt passes through the inclined flat roller 3, the flat roller 3 applies a return thrust to it, and the belt is corrected under the action of the flat roller 3.

[0031] The swivel pivot 4 includes a sleeve 18 and a fixed shaft 19. The sleeve 18 is fixedly connected to the roller support arm 5. The fixed shaft 19 is fixedly connected to the adjustment bracket 2. The sleeve 18 is rotatably connected to the outer side of the top end of the fixed shaft 19 through a thrust bearing 16 and a needle bearing 20. The thrust bearing 16 is located at the top end of the fixed shaft 19, and the needle bearing 20 is sleeved on the outer side of the fixed shaft 19.

[0032] The needle bearing 20 is limited on the outside of the fixed shaft 19 by a retaining spring; a step for the thrust bearing 16 is provided at the top end of the fixed shaft 19 .

[0033] By arranging the thrust bearing 16 to support the roller support arm 5 in the vertical direction, the rotational friction is reduced. At the same time, by arranging the needle bearing 20, the roller support arm 5 is prevented from swinging in the vertical direction. When the belt is offset, it can more easily drive the roller support arm to rotate, thereby improving its operating stability and sensitivity. By arranging the thrust bearing 16 and the needle bearing 20 on the inner side of the sleeve 18, it has good waterproof and dustproof effects.

[0034] In some embodiments, in order to facilitate the positioning of the sleeve 18, a limiting ring groove 17 is provided on the outer side of the top end of the fixed shaft 19, and a screw 23 is threadedly connected to the position corresponding to the limiting ring groove 17 on the side wall of the sleeve 18. One end of the screw 23 is screwed into the limiting ring groove 17, and the sleeve 18 is limited under the cooperation of the screw 23. The rotation depth should be controlled to avoid contact between the screw 23 and the limiting ring groove 17.

[0035] Specifically, a nut 21 is fixedly connected to the outer side of the sleeve 18 , a screw 23 is threadedly connected to the sleeve 18 via the nut 21 , and a gasket 22 is sleeved on the outer side of the screw 23 .

[0036] By arranging the washer 22 on the outside of the screw 23 , the screw 23 can be prevented from loosening, and the screwing depth of the screw 23 can be controlled to prevent the screw 23 from contacting the limiting ring groove 17 .

[0037] In order to facilitate the adjustment of the inclination angle of the tapered roller 1, the small diameter end of the tapered roller 1 is fixedly connected to the roller support arm 5 through the adjusting bolt 24. Specifically, the roller support arm 5 and the adjusting bolt 24 are both provided with a U-shaped slot, and the outer sides of both ends of the rotating shaft of the tapered roller 1 are both provided with grooves adapted to the U-shaped slot, so that the two ends of the rotating shaft of the tapered roller 1 can move relative to the roller support arm 5 and the adjusting bolt 24, and will not be out of the limit position, so as to meet the inclination adjustment requirements.

[0038] In order to increase friction and prevent the tapered roller 1 and the flat roller 3 from sliding relative to the belt, the outer sides of the tapered roller 1 and the flat roller 3 are coated with a wear-resistant rubber layer.

[0039] In some embodiments, the adjustment bracket 2 includes: a length adjustment bracket, the length adjustment bracket includes a support bracket 6 and a movable bracket 8, both ends of the support bracket 6 are horizontally slidably connected to the movable bracket 8, and the movable bracket 8 and the support bracket 6 are fixed and positioned by fastening bolts 7;

[0040] By setting a length adjustment frame, the length of the belt conveyor bracket can be adjusted according to the width of the belt conveyor bracket for easy installation;

[0041] Specifically, the support frame 6 includes a limiting cylinder, the movable frame 8 includes a sliding rod, the limiting cylinder is sleeved on the outer side of the sliding rod, and the outer side of the limiting cylinder is threadedly connected with a fastening bolt 7.

[0042] When adjusting its overall length, loosen the fastening bolt 7, and then slide the slide rod to adjust the length. During this process, the slewing pivot 4 should always be located on the center line of the belt conveyor. After adjusting to the appropriate length, tighten the fastening bolt 7. The fastening bolt 7 passes through the wall of the limiting cylinder and presses the slide rod to fix the length.

[0043] The height adjustment frame includes an end plate 9 and a height adjustment frame 10. The movable frame 8 is fixedly connected to the height adjustment frame 10 by a height adjustment bolt 12. The movable frame 8 is fixedly connected to the end plate 9 by a first bolt. A strip hole 11 is opened on the end plate 9 along its vertical direction for the first bolt to pass through. The height adjustment frame 10 is fixedly connected to the end plate 9 by a second bolt. A plurality of through holes 14 are opened on the end plate 9 along its vertical direction for the second bolt to pass through.

[0044] By setting the height-adjusting bolt 12, the height of the movable frame 8 can be infinitely adjusted. By setting a plurality of through holes 14 of different heights on the end plate 9 for mounting and fixing the height-adjusting frame 10, the height adjustment range of the movable frame 8 can be further increased. After the height adjustment is completed, the movable frame 8 is fixed to the end plate 9 by the first bolt, thereby further improving its structural stability. By setting the strip hole 11 for the first bolt to pass through, it is only necessary to loosen the first bolt during the height adjustment process without unscrewing it, thereby making the height adjustment more convenient.

[0045] Specifically, in order to avoid interference between the movable frame 8 and the height-adjustable frame 10, the movable frame 8 and the height-adjustable frame 10 are respectively located on both sides of the end plate 9, and the end of the movable frame 8 away from the support frame 6 is fixedly connected with a fixed block 13, and the fixed block 13 is fixedly connected to the height-adjustable frame 10 through a height-adjusting bolt 12. During the installation process, in order to facilitate the fixation of the movable frame 8 and the end plate 9, the fixed block 13 passes through the end plate 9 through the U-shaped hole 15, so that the fixed block 13 can be pushed in from one side of the end plate 9.

[0046] The upper end surface of the end plate 9 is provided with a connecting hole for bolts to pass through and fix to the bracket of the belt conveyor, and a mounting hole is provided at a corresponding mounting position on the bracket.

[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A trough type automatic deviation correction system, characterized in that: The adjusting bracket (2) comprises an adjusting bracket (2), the upper part of which is rotatably connected to a roller support arm (5) via a slewing pivot (4), the two ends of the roller support arm (5) being inclined upward and symmetrical to the rotation axis, a flat roller (3) being horizontally mounted in the middle part of the upper part of the roller support arm (5), the two ends of the flat roller (3) being provided with a tapered roller (1), the two tapered rollers (1) being symmetrically mounted in a V-shape on the upper part of the roller support arm (5), and the adjacent ends of the two flat rollers (3) being the large diameter ends; The slewing pivot (4) comprises a sleeve (18) and a fixed shaft (19); the sleeve (18) is fixedly connected to the roller support arm (5); the fixed shaft (19) is fixedly connected to the adjustment bracket (2); the sleeve (18) is rotatably connected to the outer side of the top end of the fixed shaft (19) via a thrust bearing (16) and a needle bearing (20); the thrust bearing (16) is located at the top end of the fixed shaft (19); and the needle bearing (20) is sleeved on the outer side of the fixed shaft (19).

2. A trough type automatic deviation correction system according to claim 1, characterized in that: A limiting annular groove (17) is provided on the outer side of the top end of the fixed shaft (19), and a screw (23) is threadedly connected at a position on the side wall of the sleeve (18) corresponding to the limiting annular groove (17).

3. A trough type automatic deviation correction system according to claim 2, characterized in that: A nut (21) is fixedly connected to the outer side of the sleeve (18), the screw (23) is threadedly connected to the sleeve (18) via the nut (21), and a gasket (22) is sleeved on the outer side of the screw (23).

4. A trough type automatic deviation correction system according to claim 1, characterized in that: The small diameter end of the tapered roller (1) is fixedly connected to the roller support arm (5) via an adjusting bolt (24).

5. The trough type automatic deviation correction system according to claim 1, characterized in that: The outer sides of the tapered roller (1) and the flat roller (3) are both coated with a wear-resistant rubber layer.

6. A trough type automatic deviation correction system according to claim 1, characterized in that: The adjusting bracket (2) comprises: A length adjustment frame, the length adjustment frame comprising a support frame (6) and a movable frame (8), both ends of the support frame (6) being horizontally slidably connected to the movable frame (8), the movable frame (8) and the support frame (6) being fixed in position by fastening bolts (7); A height adjustment frame, the height adjustment frame comprising an end plate (9) and a height adjustment frame (10), the movable frame (8) being fixedly connected to the height adjustment frame (10) via a height adjustment bolt (12), the movable frame (8) being fixedly connected to the end plate (9) via a first bolt, the end plate (9) being provided with a strip hole (11) along its vertical direction for the first bolt to pass through, the height adjustment frame (10) being fixedly connected to the end plate (9) via a second bolt, the end plate (9) being provided with a plurality of through holes (14) along its vertical direction for the second bolt to pass through.

7. A trough type automatic deviation correction system according to claim 6, characterized in that: The support frame (6) comprises a limiting cylinder, the movable frame (8) comprises a sliding rod, the limiting cylinder is sleeved on the outside of the sliding rod, and the outside of the limiting cylinder is threadedly connected with a fastening bolt (7).

8. A trough type automatic deviation correction system according to claim 6, characterized in that: The movable frame (8) and the height-adjustable frame (10) are respectively located on both sides of the end plate (9); one end of the movable frame (8) away from the support frame (6) is fixedly connected to a fixed block (13); the fixed block (13) is fixedly connected to the height-adjustable frame (10) via a height-adjustable bolt (12); and the fixed block (13) passes through the end plate (9) via a U-shaped hole (15).

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