Anti-deviation carrier roller set for belt transportation

Abstract

The utility model discloses an anti-deviation carrier roller group for belt transportation. The anti-deviation carrier roller group comprises a main carrier roller, a side carrier roller and a pair of vertical rollers which are all mounted on a reversing frame, each vertical roller is vertically and rotatably mounted at one end of the rotary arm, and is correspondingly positioned at the edge, close to the belt, of the side carrier roller; the other end of the rotary arm is rotationally mounted on the supporting base, and a gear is rotationally fixed on the rotary arm; the middle of the reversing frame is rotationally installed on the supporting base, a pair of gear ring blocks are symmetrically arranged with the rotating center as the center, and the gear ring blocks are correspondingly connected with the gears in a meshed mode. The off-tracking belt acts on the corresponding vertical rollers, so that the rotary arms where the vertical rollers are located rotate, the gears are meshed with the gear ring blocks, the main carrier roller and the side carrier rollers on the rotary frame are driven to integrally deflect, off-tracking correction is carried out on the belt, linkage response is timely, and the deviation of the belt is corrected. The problems that correction cannot be conducted in time due to small friction force in the prior art, and torque needed by the carrier roller for bearing weight cannot be overcome are solved.

Description

Technical Field

[0001] The utility model relates to the field of belt transportation in coal mine transportation, in particular to a belt transportation anti-deviation roller group. Background Art

[0002] Belt conveyors are conveying equipment widely used in the bulk material transportation industry and are indispensable transportation equipment for modern manufacturing enterprises.

[0003] Taking the belt conveyor for coal transportation as an example, the main structure of the belt conveyor includes multiple roller groups installed on a fixed frame, and a belt wound around the outer side of the roller group to form a closed loop structure;

[0004] It is inevitable that the belt conveyor will deviate. The reasons for deviation include non-parallel installation of rollers, non-vertical axis of rollers, uneven force, uneven belt tension, damage or wear of rollers, loose roller brackets, etc. In addition, external factors such as material accumulation and ambient temperature changes may also cause roller deviation. The deviation of the belt conveyor not only affects the service life of the equipment, but sometimes even brings hidden dangers to production safety, leading to accidents and threatening the personal safety of operators;

[0005] The structure of the existing deviation-adjusting roller mainly includes a main roller 10 installed on a rotating frame 13, side rollers 11 located on both sides of the main roller 10, and vertical rollers 12 arranged vertically and matched with the side rollers 11; when the belt deviates during operation, the vertical rollers 12 are subjected to the friction force of the belt, and the rotating frame 13 is subjected to the rotation torque and rotates a certain angle. At this time, the vertical rollers 12 will give the belt a friction force in the other direction, so that the belt returns to the center position. However, in actual use, the additional friction caused by the deviation of the belt is relatively small, and the correction cannot be triggered in time, that is, the torque required for the roller to bear the weight cannot be overcome, causing the belt deviation to be further aggravated. Summary of the invention

[0006] The utility model aims to provide a belt transport anti-deviation roller group with a simple and compact structure, which can correct the deviation of the belt without the action of external force, and has timely linkage response, thus avoiding the problem that the traditional method cannot correct the deviation in time due to small friction.

[0007] In order to achieve the above purpose, the belt transport anti-deviation roller group includes:

[0008] The main roller and the side roller are rotatably mounted on the rotary frame and are used to receive the belt. A pair of side rollers are tilted and located on both sides of the main roller.

[0009] It is characterized by further comprising:

[0010] Vertical rollers are a pair, each of which is installed vertically and rotatably at one end of the slewing arm and is located at the side rollers, close to the edge of the belt;

[0011] The slewing arm has the other end rotatably installed on the support base and is fixedly provided with a gear at the same time.

[0012] The slewing frame has the middle part rotatably installed on the support base, and a pair of toothed ring blocks are symmetrically arranged with respect to the rotation center, and the pair of toothed ring blocks are correspondingly meshed and connected with the gear.

[0013] Further, the gear and the toothed ring blocks are both located between the support base and the slewing frame;

[0014] The main support shaft in the middle of the slewing frame and the side support shaft at one end of the slewing arm are both rotatably installed through bearings.

[0015] Further, one end of the slewing arm is provided with a plurality of through holes arranged perpendicular to the conveying direction;

[0016] The vertical roller mounting shaft is fixedly located in one of the through holes.

[0017] In some embodiments, pulling components are provided on the outer sides of the side idler rollers on the slewing frame;

[0018] The pulling component includes:

[0019] A column with a support roller provided at the upper end;

[0020] A pulling rope has one end fixed on the support base, and the other end is wound around the outside of the support roller and then connected to the side idler roller;

[0021] When the slewing frame is parallel to the support base, the pulling rope is in a taut state;

[0022] When the slewing frame forms an angle with the support base, the pulling rope drives the side idler roller to rotate with the inner end in the vertical plane.

[0023] Further, the outer end of the side idler roller is relatively slidably installed on the fixed shaft;

[0024] The pulling component further includes: a slider;

[0025] The slider is slidably installed up and down on the column and the upper end is connected to the pulling rope;

[0026] One end of the fixed shaft is rotatably installed on the slider.

[0027] In still some other embodiments, a fixed block is provided on the length center line of the slewing frame;

[0028] A pair of limit blocks are provided on the support base and are symmetrically arranged with respect to the length center;

[0029] When the slewing frame rotates a certain angle, the fixed block contacts the limit block.

[0030] Further, an inductor connected to the controller is provided on the limiting block or the main support shaft;

[0031] When the slewing frame rotates by a certain angle, the controller receives the induction signal and controls the alarm component to act.

[0032] Compared with the prior art, in this anti-deviation idler group for belt transportation, due to the action of the deviated belt on the corresponding vertical rollers, the slewing arm where the vertical rollers are located rotates. Through the meshing of the gear and the gear ring block, the main idlers and side idlers on the slewing frame are driven to deflect as a whole, correcting the deviation of the belt. Its linkage response is timely, avoiding the problems of the traditional method that cannot be corrected in time due to small friction and cannot overcome the torque required to bear the weight of the idlers;

[0033] By providing a pulling component, when the slewing frame is parallel to the support base, the pulling rope is in a taut state. When the slewing frame forms an angle with the support base, the pulling rope drives the side idler to rotate at the inner end in the vertical plane. Therefore, when the belt deviation causes the slewing frame to rotate, under the action of the pulling rope, the pulling rope drives the side idler to rotate at the inner end in the vertical plane, so that the outer sides of a pair of side idlers are appropriately lifted, increasing the limiting and bearing of the belt, and automatically blocking the deviated belt back to the normal running position, further enhancing the belt deviation correction effect. Description of the Drawings

[0034] Figure 1 is the overall front view of the present invention;

[0035] Figure 2 is the overall top view of the present invention;

[0036] Figure 3 is the schematic diagram of the movement of the slewing frame relative to the support base when the belt deviates to the left in the present invention;

[0037] Figure 4 is the schematic diagram of the movement of the slewing frame relative to the support base when the belt deviates to the right in the present invention;

[0038] Figure 5 is the front view of the rotation of the side idler when the belt deviates in the present invention;

[0039] Figure 6 is Figure 5 the enlarged view at position A in

[0040] In the figure: 10, main idler; 11, side idler; 12, vertical roller; 13, slewing frame;

[0041] 20, support base; 21, support cross bar;

[0042] 31, main support shaft; 32, side support shaft;

[0043] 41. Ring gear block, 42. Gear, 43. Rotary arm;

[0044] 51. Column, 52. Support roller, 53. Slide block, 54. Pulling rope, 55. Fixed shaft;

[0045] 61. Conveyor central axis, 62. Belt center line. Detailed implementation manner

[0046] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0047] For the convenience of description, the conveyor central axis 61 close to the installation of this anti-deviation idler group is defined as the inner side, and the conveyor central axis 61 far from the installation of this anti-deviation idler group is defined as the outer side;

[0048] As Figure 1 、 Figure 2 shown, this belt transportation anti-deviation idler group includes:

[0049] Main idler 10 and side idler 11 are rotatably installed on the rotary frame 13 and used to support the belt. A pair of side idlers 11 are inclined on both sides of the main idler 10;

[0050] Vertical rollers 12, a pair of them, each vertical roller 12 is vertically and rotatably installed at one end of the rotary arm 43 and correspondingly located at the side idler 11;

[0051] The other end of the rotary arm 43 is rotatably installed on the support base 20 and a gear 42 is fixedly installed for rotation;

[0052] The middle of the rotary frame 13 is rotatably installed on the support base 20, and a pair of ring gear blocks 41 are symmetrically arranged with the rotation center. A pair of ring gear blocks 41 are correspondingly meshed with the gear 42;

[0053] Specifically, the axis of the main idler 10 is perpendicular to the conveying direction and is rotatably installed on the rotary frame 13 for mainly supporting the belt; the side idlers 11, a pair of them, are respectively located on both sides of the main idler 10, and the side idlers 11 are inclined, that is, the inner side is lower and the outer side is inclined upward for auxiliary supporting the belt;

[0054] The vertical rollers 12 are vertically and rotatably arranged for limiting the belt; the upper and lower heights of the vertical rollers 12 can intersect with the axis of the side idlers 11, that is, to ensure that the belt is always blocked and limited during belt conveying;

[0055] The slewing arm 43 has a gear 42 rotatably mounted at one end.

[0056] The slewing frame 13 is rotatably mounted in the middle on the support base 20. The ring gear block 41 is fixed to the slewing frame 13 by a plurality of bolts and can be formed by dividing a large ring gear. A pair of ring gear blocks 41 are arranged with the same diameter and meshed with the gear 42 correspondingly. The support base 20 can be detachably mounted on the support cross bar 21 of the conveying mechanism by bolts or the like.

[0057] It should be noted that in the initial stage, the vertical rolls 12 are arranged inwardly, that is, one end of the slewing frame 13 equipped with the vertical rolls 12 is close to the belt.

[0058] Such as Figure 1 As shown, further, the gear 42 and the ring gear block 41 are both located between the support base 20 and the slewing frame 13.

[0059] The main support shaft 31 in the middle of the slewing frame 13 and the side support shaft 32 at one end of the slewing arm 43 are both rotatably mounted through bearings.

[0060] Specifically, the main support shaft 31 is fixed in the middle of the slewing frame 13. The main support shaft 31 is rotatably mounted on the support base 20, and a certain distance is provided between the slewing frame 13 and the support base 20 for placing the gear 42 and the ring gear block 41.

[0061] Embodiment 1

[0062] Before the anti-deviation idler group for belt transportation is used, according to the belt size, the position of the vertical roll 12 is adjusted. Preferably, one end of the slewing arm 43 is provided with a plurality of through holes arranged perpendicular to the conveying direction, and the mounting shaft of the vertical roll 12 is fixedly located in one of the through holes, aiming to make the vertical roll 12 located on both sides of the belt and suitable for different belt sizes.

[0063] Such as Figure 2 As shown, the support base 20 is mounted on the support cross bar 21, and the slewing frame 13 is rotatably mounted on the support base 20 and is perpendicular to the conveying direction initially. The belt is conveyed on the anti-deviation idler group for belt transportation.

[0064] Such as Figure 3 As shown, the belt is conveyed along the arrow direction. When the belt deviates to the left, the center line 62 of the belt deviates to the left from the conveying central axis 61. The belt rolls into contact with the left vertical roll 12, and the slewing arm 43 where the vertical roll 12 is located rotates clockwise. The slewing arm 43 drives the gear 42 to rotate. Since the ring gear block 41 and the gear 42 mesh with each other, the ring gear block 41 fixed to the lower end of the slewing frame 13 drives the slewing frame 13 to rotate counterclockwise, that is, the main idler 10 and the side idler 11 on the slewing frame 13 deflect counterclockwise as a whole to correct the belt that deviates to the left, that is, the belt receives a lateral force to the right, causing the belt to move to the right for deviation correction.

[0065] Meanwhile, as the slewing bracket 13 rotates, the ring gear block 41 on the right side meshes with the corresponding gear 42, causing the slewing arm 43 on the right side to rotate clockwise, and the rotation angle is the same as that of the slewing arm 43 on the left side, maintaining the limit on the belt.

[0066] As Figure 4 shown, the belt is conveyed along the arrow direction. When the belt runs to the right and deviates, the center line 62 of the belt deviates to the right from the conveying central axis 61. The belt rolls into contact with the vertical roller 12 on the right side, and the slewing arm 43 where the vertical roller 12 is located rotates counterclockwise. The slewing arm 43 drives the gear 42 to rotate. Since the ring gear block 41 meshes with the gear 42, the ring gear block 41 fixed at the lower end of the slewing bracket 13 drives the slewing bracket 13 to rotate clockwise, that is, the main idler 10 and the side idler 11 on the slewing bracket 13 are deflected clockwise as a whole, correcting the belt that runs to the right and deviates. That is, the belt is subjected to a lateral force to the left, causing the belt to move and correct the deviation.

[0067] Meanwhile, as the slewing bracket 13 rotates, the ring gear block 41 on the left side meshes with the corresponding gear 42, causing the slewing arm 43 on the left side to rotate counterclockwise, and the rotation angle is the same as that of the slewing arm 43 on the right side, maintaining the limit on the belt.

[0068] This anti-deviation idler group for belt transportation acts on the corresponding vertical roller 12 through the belt that deviates, causing the slewing arm 43 where the vertical roller 12 is located to rotate. Through the meshing of the gear 42 with the ring gear block 41, the main idler 10 and the side idler 11 on the slewing bracket 13 are deflected as a whole, correcting the deviation of the belt. Its linkage response is timely, avoiding the problems of the traditional one that cannot be corrected in time due to small friction and cannot overcome the torque required to bear the weight of the idler.

[0069] As Figure 5 、 Figure 6 shown, in the preferred solution, a pulling component is provided on the outside of the side idler 11 on the slewing bracket 13;

[0070] The pulling component includes:

[0071] A column 51, with a support roller 52 provided at the upper end;

[0072] A pulling rope 54, one end of which is fixed on the support base 20, and the other end is wound around the outside of the support roller 52 and then connected to the side idler 11;

[0073] When the slewing bracket 13 is parallel to the support base 20, the pulling rope 54 is in a taut state;

[0074] When the slewing bracket 13 forms an angle with the support base 20, the pulling rope 54 drives the side idler 11 to rotate at the inner end in the vertical plane;

[0075] Specifically, the driving component is used to link and cause the side idler 11 to deflect around the inner end when the slewing frame 13 rotates.

[0076] The column 51 is located outside relative to the side idler 11. An annular groove is provided on the circumferential side of the support roller 52 at the upper end to ensure that the driving rope 54 is embedded and will not be disengaged due to rotation.

[0077] Such as Figure 6 As shown, further, the outer end of the side idler 11 is relatively slidably mounted on the fixed shaft 55, and one end of the fixed shaft 55 is rotatably mounted on the slider 53.

[0078] The driving component further includes: a slider 53;

[0079] The slider 53 is slidably mounted on the column 51 up and down and is connected to the driving rope 54 at the upper end.

[0080] Specifically, the side idler 11 includes a side idler body and a mounting shaft. That is, the side idler body rotates on the mounting shaft through a bearing. The inner end of the mounting shaft is rotatably arranged, and this rotation axis is parallel to the conveying direction. The outer end of the mounting shaft slides relative to the fixed shaft 55. For example, a blind hole is provided on the mounting shaft, and one end of the fixed shaft 55 is rotatably mounted on the slider 53 and the other end is sleeved in the blind hole of the mounting shaft by means of a flat key or the like.

[0081] The purpose of this method is that when the driving rope 54 moves the slider 53 upward, the side idler 11 rotates around the inner end in the vertical plane. At this time, the side idler 11 will change in length. Therefore, by relatively slidably mounting the outer end of the side idler 11 on the fixed shaft 55, it is used to compensate for the change in the overall length caused by the rotation of the side idler 11 around the inner end in the vertical plane.

[0082] The slider 53 can be slidably located on the column 51 through a linear slide rail.

[0083] Embodiment 2

[0084] When the belt conveyor anti-deviation idler group is in the initial state of use, the slewing frame 13 is parallel to the support base 20, and the driving rope 54 is in a taut state; when the belt deviates, the belt acts on the corresponding vertical roller 12, causing the rotary arm 43 where the vertical roller 12 is located to rotate, and the gear 42 meshes with the gear ring block 41, driving the main idler 10 and the side idler 11 on the slewing frame 13 to deflect as a whole, correcting the deviation of the belt, and its linkage response is timely.

[0085] When the slewing frame 13 slews, the pulling rope 54 will be tightened. That is, with the total length of the pulling rope 54 remaining unchanged, when the slewing frame 13 forms an angle with the support base 20, the pulling rope 54 pulls the slider 53 to move upward. The outer end of the side idler 11 is relatively slidably mounted on the fixed shaft 55. Therefore, under the action of the pulling rope 54, the pulling rope 54 drives the side idler 11 to rotate with its inner end in the vertical plane.

[0086] The outer sides of a pair of side idlers 11 are appropriately raised. The side idlers 11 increase the limit and load-bearing of the belt, automatically deflect the deviated belt back to the normal running position, that is, the belt center line 62 coincides with the conveying central axis 61, further enhancing the belt deviation correction effect.

[0087] In the preferred solution, a fixed block is provided on the length center line of the slewing frame 13.

[0088] A pair of limit blocks symmetrically arranged with respect to the length center are provided on the support base 20.

[0089] When the slewing frame 13 rotates a certain angle, the fixed block contacts the limit block.

[0090] Furthermore, an inductor connected to the controller is provided on the limit block or the main support shaft 31.

[0091] When the slewing frame 13 rotates a certain angle, the controller receives the induction signal and controls the alarm component to act.

[0092] Embodiment 3

[0093] In the initial state, the limit block is set at an appropriate position so that it can match the fixed block. For example, both the limit block and the fixed block are on the same diameter with the rotation center of the slewing frame 13 as the center of the circle.

[0094] The limit block is used to limit the rotation angle of the slewing frame 13. That is, when the belt deviates and causes the slewing frame 13 to rotate clockwise or counterclockwise, the fixed block rotates a certain angle with the slewing frame 13 and contacts the limit block on the support base 20, realizing the limitation of the rotation angle of the slewing frame 13.

[0095] The inductor on the limit block can be a pressure sensor for monitoring the contact pressure between the limit block and the fixed block, or a displacement sensor for monitoring the distance between the limit block and the fixed block. When the inductor monitors that the pressure or displacement reaches the set range, the controller determines that the slewing frame 13 reaches the angle boundary.

[0096] The inductor on the main support shaft 31 can be an angle sensor for monitoring the rotation angle of the main support shaft 31, or a torque sensor for monitoring the torque received during the rotation of the main support shaft 31. When the inductor monitors that the angle or torque reaches the set range, the controller determines that the slewing frame 13 reaches the angle boundary.

[0097] When the controller determines that the slewing jib 13 reaches the angular boundary, the controller controls the alarm component to act, such as emitting an audible and visual alarm indication, or wirelessly transmitting the alarm signal to the monitoring terminal or the mobile terminal, facilitating the staff to handle it.

[0098] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

Claims

1. Belt conveyor anti-deviation idler set, comprising: Main idlers (10) and side idlers (11), rotatably mounted on a rotary frame (13) for supporting the belt, and a pair of side idlers (11) are inclined on both sides of the main idler (10); It is characterized in that it further comprises: Vertical rollers (12), a pair of them, each vertical roller (12) is vertically rotatably mounted at one end of a rotary arm (43), and is correspondingly located at the edge of the side idler (11) close to the belt; Rotary arm (43), the other end is rotatably mounted on a support base (20) and is rotatably fixed with a gear (42); Rotary frame (13), the middle part is rotatably mounted on the support base (20), and a pair of toothed ring blocks (41) are symmetrically arranged with the rotation center, and the pair of toothed ring blocks (41) are correspondingly meshed with the gear (42).

2. The anti-deviation idler group for belt conveyor according to claim 1, wherein The gear (42) and the toothed ring block (41) are both located between the support base (20) and the rotary frame (13); The main support shaft (31) in the middle of the rotary frame (13) and the side support shaft (32) at one end of the rotary arm (43) are both rotatably mounted through bearings.

3. The anti-deviation idler group for belt conveyor according to claim 2, characterized in that, One end of the rotary arm (43) is provided with a plurality of through holes arranged perpendicular to the conveying direction; The mounting shaft of the vertical roller (12) is fixedly located in one of the through holes.

4. The anti-deviation idler group for belt conveyor according to any one of claims 1 to 3, characterized in that, Pulling components are arranged on the outside of the side idlers (11) on the rotary frame (13); The pulling component comprises: A column (51), the upper end of which is provided with a support roller (52); A pulling rope (54), one end of which is fixed on the support base (20), and the other end is wound around the outside of the support roller (52) and then connected to the side idler (11); When the rotary frame (13) is parallel to the support base (20), the pulling rope (54) is in a taut state; When the rotary frame (13) forms an angle with the support base (20), the pulling rope (54) drives the side idler (11) to rotate with the inner end in the vertical plane.

5. The anti-deviation idler group for belt conveyor according to claim 4, wherein The outer end of the side idler (11) is relatively slidably mounted on a fixed shaft (55); The pulling component further comprises: a slider (53); The slider (53) is slidably mounted up and down on the column (51) and the upper end is connected to the pulling rope (54); One end of the fixed shaft (55) is rotatably mounted on the slider (53).

6. The anti-deviation idler group for belt transportation according to claim 4, characterized in that, A fixed block is provided on the length center line of the rotary frame (13); A pair of limit blocks are arranged on the support base (20) symmetrically with the length center; When the rotary frame (13) rotates a certain angle, the fixed block contacts the limit block.

7. The anti-deviation idler group for belt transportation according to claim 6, characterized in that, An inductor connected to the controller is provided on the limit block or the main support shaft (31); When the rotary frame (13) rotates a certain angle, the controller receives the induction signal and controls the alarm component to act.

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