Flexible carrier roller frame

Abstract

The utility model relates to a flexible carrier roller frame. The flexible carrier roller frame comprises a carrier roller and a flexible carrier roller, wherein the carrier roller is used for supporting a conveying belt of the belt conveyor; a clamping groove is formed in the bracket module, the carrier roller can be installed on the bracket module by sliding into the clamping groove, and the carrier roller can be detached from the bracket module by sliding out of the clamping groove; and the hooks are connected to the two ends of the bracket module, and the hooks are movably connected to the belt conveyor. According to the flexible carrier roller frame, carrier rollers on the flexible carrier roller frame can be replaced without lifting a conveying belt of a belt conveyor firstly.

Description

Technical Field

[0001] This utility model relates to the field of conveyor belt support devices; more specifically, this utility model relates to a flexible idler frame. Background Technology

[0002] To replace idlers on a belt conveyor, the conveyor belt above the idler to be replaced must first be lifted. Due to the high tension of the conveyor belt, it is difficult to lift, and tools such as pry bars, jacks, or even electric hoists are required to lift the conveyor belt, making the replacement of idlers very time-consuming and labor-intensive. Utility Model Content

[0003] In view of this, the present invention provides a flexible roller frame, thereby solving or at least alleviating one or more of the above-mentioned problems and other problems existing in the prior art.

[0004] To achieve the aforementioned objectives, this utility model provides a flexible idler frame, wherein the flexible idler frame comprises:

[0005] Idler rollers, which are used to support the conveyor belt of a belt conveyor;

[0006] A bracket module, wherein the bracket module is provided with a slot, and the roller can be installed in the bracket module by sliding into the slot and removed from the bracket module by sliding out of the slot; and

[0007] Hooks are connected to both ends of the bracket module and are movably connected to the body of the belt conveyor.

[0008] In the flexible idler frame described above, optionally, the frame module includes side brackets and a middle bracket. The side brackets are disposed on both sides of the middle bracket. The two side brackets and the middle bracket are sequentially hinged. The side brackets and the hook are movably connected. The side brackets, the middle bracket, and the hook constitute the flexible structure of the flexible idler frame.

[0009] In the flexible idler frame described above, optionally, the idler is installed on both the side bracket and the intermediate bracket, and the top of the idler supports the bottom of the conveyor belt.

[0010] In the flexible idler frame described above, optionally, the side bracket includes a first mandrel and a first idler support plate, two first idler support plates are fixedly connected to both ends of the first mandrel, and the two first idler support plates are provided with mutually aligned slots, through which the idler is installed on the side bracket.

[0011] In the flexible idler frame described above, optionally, the intermediate bracket includes a second spindle and a second idler support plate, the two second idler support plates are fixedly connected to both ends of the second spindle, and the two second idler support plates are provided with mutually aligned slots, through which the idler is installed in the intermediate bracket.

[0012] In the flexible roller frame described above, optionally, the side bracket includes two parallel first spindles and a connecting shaft, the connecting shaft being fixedly connected to the same side end of the two first spindles, the axis of the connecting shaft being perpendicular to the first spindles, and the connecting shaft being rotatably connected to the hook.

[0013] In the flexible idler frame described above, optionally, a first pin hole is provided at the other end of the first spindle away from the connecting shaft, the axis of the first pin hole is parallel to the axis of the connecting shaft, and the first pin hole is used to hinge to the intermediate bracket.

[0014] In the flexible roller frame described above, optionally, the two ends of the second spindle are respectively provided with second pin holes with parallel axes, and the first pin hole and the second pin hole form a hinge structure.

[0015] In the flexible idler frame described above, the idler may optionally include a central shaft disposed at both ends and a roller rotatably connected to the central shaft.

[0016] In the flexible roller frame described above, optionally, two grooves are provided on one of the central shafts, the grooves are arranged in the same radial direction along the central shaft, and the bottom of the grooves have mutually parallel slot mating surfaces, the slot mating surfaces being used to form a sliding connection with the sidewalls of the slots.

[0017] This invention designs a flexible idler frame, enabling the replacement of idlers on the flexible idler frame without first lifting the conveyor belt of the belt conveyor. Attached Figure Description

[0018] The disclosure of this utility model will become more apparent with reference to the accompanying drawings. It should be understood that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings:

[0019] Figure 1 This is a front view of one embodiment of the flexible roller frame of this utility model;

[0020] Figure 2 for Figure 1 Top view of the Chinese embodiment;

[0021] Figure 3 for Figure 1 Top view of the side bracket in the embodiment;

[0022] Figure 4 for Figure 1 Top view of the intermediate bracket in the Chinese embodiment;

[0023] Figure 5 for Figure 1 A top view of the idler roller in the embodiment.

[0024] Reference numerals: 1-Hook; 2-Idler; 3-Side bracket; 4-Connecting pin; 5-Bracket module; 6-Intermediate bracket; 7-Machine body; 8-First idler support plate; 9-Slot; 10-First spindle; 11-Second spindle; 12-Second idler support plate; 13-Fixed shaft; 14-Roller; 15-Groove; 16-Conveyor belt; 17-Connecting shaft; 18-First pin hole; 19-Second pin hole; 20-U-shaped opening. Detailed Implementation

[0025] Referring to the accompanying drawings and specific embodiments, the structure, composition, features and advantages of a flexible roller frame of the present invention will be described below by way of example; however, all descriptions should not be construed as limiting the present invention in any way.

[0026] Furthermore, for any single technical feature described or implied in the embodiments mentioned herein, or any single technical feature shown or implied in the various drawings, the present invention still allows for any combination or deletion of these technical features (or their equivalents) without any technical obstacle. Therefore, these further embodiments according to the present invention should also be considered within the scope of the description herein.

[0027] It should also be noted that the terms “upper,” “lower,” “left,” “right,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship of the flexible idler frame shown in the accompanying drawings. They are used only for the convenience of describing this disclosure and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature.

[0029] Figure 1 This is a front view of one embodiment of the flexible roller frame of this utility model. Figure 2 for Figure 1 Top view of the embodiment. To avoid obscuring key components, Figure 2 The conveyor belt 16 in the image is shown only in outline.

[0030] The flexible roller frame of this utility model includes a roller 2, a bracket module 5, and a hook 1, wherein the roller 2 can be arranged along the length direction of the flexible roller frame. The length direction of the flexible roller frame is parallel to... Figure 1 The idler roller 2 is mounted on the bracket module 5. The idler roller supports the conveyor belt 16 of the belt conveyor, and the bracket module supports and limits the idler roller 2. To facilitate the loading and unloading of the idler roller 2 on the bracket module 5, a slot 9 is provided on the bracket module, allowing the idler roller to be installed by sliding into the slot. When the idler roller is installed in the slot of the bracket module, the slot provides support and limits the idler roller, enabling the idler roller to stably support the conveyor belt. Meanwhile, in existing traditional idler roller hanging technology, multiple rollers are often hinged sequentially, requiring the disassembly and reassembly of this hinge structure for loading and unloading, which is time-consuming and labor-intensive. In this embodiment, the loading and unloading of the roller can be completed simply by sliding the idler roller into and out of the slot 9, which is simple, convenient, and saves more time and manpower. To facilitate loading and unloading of the flexible idler frame of this invention from the belt conveyor, hooks 1 are connected to both ends of the bracket module 5. The hooks 1 are movably connected to the body 7 on both sides of the belt conveyor. As an optional embodiment, the belt conveyor may have a body 7, which is located in… Figure 1 The diagram uses a cylinder extending perpendicular to the paper surface. The machine body 7 is connected to hooks 1 at both ends of the flexible idler frame of this invention. Each hook 1 has a downward-curving U-shaped opening 20, allowing it to be movably connected to the machine body 7. When the operator lifts the hook 1 upwards, one side of the flexible idler frame can be detached from the machine body 7 of the belt conveyor.

[0031] This flexible idler frame can be used in heavy-duty belt conveyors, including but not limited to surface and underground coal mines, where such conveyors are typically used to transport heavy materials such as ore and coal. This flexible idler frame allows for easy replacement of idlers, reducing the time spent on idler replacement and improving conveying efficiency. In this type of conveyor, the conveyor belt 16 is subjected to its own weight and the weight of the load, with the idler 2 positioned below the conveyor belt. The idler 2 can rotate, thereby reducing the frictional resistance experienced by the conveyor belt during movement. The flexible idler frame of this invention is arranged along the width direction of the conveyor belt, which is parallel to the [missing information - likely a specific direction or feature]. Figure 1 In the left and right direction, the length direction of the conveyor belt is perpendicular to the horizontal direction. Figure 1The paper orientation is shown in the diagram. Multiple flexible idler frames of this invention can be arranged along the length of the conveyor belt and at the same height. The conveyor belt 16 is stretched in opposite directions at both ends of the belt conveyor, generating significant stress within the belt, making it difficult to lift. In the prior art, idlers are fixedly positioned below the conveyor belt. To replace a worn idler, the conveyor belt above the worn idler must first be lifted a certain distance to create operating space for replacement. This makes idler replacement difficult to complete entirely manually, requiring the use of lifting tools such as crowbars, jacks, manual hoists, or electric hoists. The flexible idler frame of this invention can be easily removed from the conveyor, allowing replacement of the idler without first lifting the conveyor belt above the idler to be replaced.

[0032] Optionally, the bracket module 5 may include side brackets 3 and intermediate brackets 6, with the side brackets 3 located on both sides of the intermediate bracket 6. The two side brackets 3 and one intermediate bracket 6 are sequentially hinged. The bracket module 5 has a flexible structure, thus the flexible roller frame is flexible, and the side brackets 3 are movably connected to the hooks 1. The following describes... Figure 1 The orientation of the bracket module 5 is described more specifically: A side bracket 3 is provided on each of the left and right sides of the central bracket 6. The left side bracket 3 of the central bracket 6 is positioned with the left side higher than the right, its left end is movably connected to one end of the hook 1, and its right end is hinged to the left end of the central bracket 6. The right side bracket 3 of the central bracket 6 is lower on the left and higher on the right, its left end is hinged to the right end of the central bracket 6, and its right end is movably connected to the hook 1. The side brackets, central bracket, and hook together constitute the flexible structure of this flexible roller frame. Idler rollers 2 are installed on the central bracket 6 and the two side brackets 3 on its left and right sides, for a total of three idler rollers 2. The three idler rollers 2 support the conveyor belt 16, and the tops of the three idler rollers 2 together form a centrally concave support surface. The bottom of the conveyor belt 16 presses against the three idler rollers 2, fitting against the tops of the three idler rollers 2, and the bottom of the conveyor belt fits against this support surface. The middle section of the conveyor belt is concave downwards, and the left and right sides of the conveyor belt slope downwards. As explained earlier, the conveyor belt has significant tension and is difficult to lift. Figure 1 As shown, if the operator wants to replace the idler roller installed on the side bracket 3 on the right side of the intermediate bracket 6, the conveyor belt above the idler roller needs to be lifted before replacement, which is very laborious. By using a bracket module 5 with a flexible structure, the bracket module 5 can be removed to replace the idler roller 2 installed on it, thus avoiding lifting the conveyor belt. Specifically, the hook 1 connected to the right end of the bracket module 5 can be lifted upwards. During this process, the side bracket 3 on the right side of the intermediate bracket 6 will rotate counterclockwise around the hinge position between it and the intermediate bracket 6 until the machine body 7 disengages from the hook 1. The rotation of the side bracket 3 on the right side of the intermediate bracket 6 will cause the conveyor belt to shift or deform to the left. Since the stress inside the conveyor belt is mainly along its length, that is... Figure 1 The direction perpendicular to the paper. Displacement or deformation of the conveyor belt along its width direction does not generate significant resistance, sufficient for manual operation (this width direction is parallel to the paper). Figure 1 (in the left and right directions). The hinged side brackets 3 and the intermediate bracket 6 are the reason why the bracket module 5 is flexible. If the side brackets 3 and the intermediate bracket 6 were rigidly connected, the bracket module 5 would form a rigid structure, and the flexible idler frame would not be flexible. At this time, if the flexible idler frame is to be removed from the body 7 on one side of the belt conveyor by lifting the hook 1 connected to the side bracket 3 on the right side of the intermediate bracket 6, the bracket module 5 will rotate counterclockwise around the connection between the side bracket 3 on the left side of the intermediate bracket 6 and the hook 1. This will inevitably cause the conveyor belt 16 to move upward a certain distance, which is difficult to do manually, for the reasons mentioned above. Compared with the previous analysis of the process of removing the flexible idler frame, the hinged connection between the side brackets 3 and the intermediate bracket 6 has a significant advantage in saving effort.

[0033] Figure 3 for Figure 1 A top view of the side bracket in the Chinese embodiment.

[0034] As an optional embodiment, the side bracket 3 may include a first spindle 10 and a first roller support plate 8. Two first roller support plates 8 are parallel to each other and are fixedly connected to both ends of the first spindle 10, with connection methods including but not limited to welding, screwing, and tenoning. A slot 9 is provided on the first roller support plate 8, and the roller 2 is connected to the first roller support plate 8 by sliding into the slot 9. The roller is thus connected to the side bracket 3. Figure 3The left and right directions, the axial direction of the first spindle 10, and the axial direction of the roller 2 mounted on the side bracket 3 are parallel to each other. Therefore, the slots 9 on the two first roller support plates 8 are aligned and parallel to each other, so that the roller 2 is always axially parallel to the axial direction of the first spindle 10 from the moment it is placed into the slot 9 until it falls to the bottom of the slot. In this embodiment, the side bracket 3 includes two parallel first spindles 10 and a connecting shaft 17, which is fixedly connected to the same side end of the two first spindles. The first spindles can be fixedly connected to the connecting shaft by means including but not limited to welding, screwing, and tenoning. The two first spindles 10 and the connecting shaft 17 can also be integrally bent, resulting in higher structural strength. In addition, the axis of the connecting shaft 17 is perpendicular to the first spindle 10. A first pin hole 18 is provided on the other side end of the first spindle 10 away from the connecting shaft 17. The axis of the first pin hole 18 is parallel to the axis of the connecting shaft 17. The first pin holes on different first spindles have coincident axes. The first pin hole 18 is used for hinged to the intermediate bracket 6. The connecting shaft 17 can be rotatably connected to the hook 1. The cross-section of the connecting shaft 17 includes, but is not limited to, circles and ellipses. There can be a certain gap at the connection between the connecting shaft and the hook, rather than a tight rotatable connection. The ends of the two first spindles 10 can be respectively provided with coaxial first pin holes 18. The side bracket 3 can be rotatably connected to the hook 1 via the connecting shaft 17. The side bracket 3 can be hinged to the intermediate bracket 6 via the end of the first spindle 10 away from the connecting shaft 17. Specifically, the side bracket 3 can be hinged to the intermediate bracket via the first pin hole 18 and the connecting pin 4.

[0035] Figure 4 for Figure 1 A top view of the intermediate bracket in the Chinese embodiment.

[0036] As an alternative embodiment, the intermediate bracket 6 may include a second spindle 11 and a second idler roller support plate 12. The two second idler roller support plates 12 are parallel to each other and are each fixedly connected to both ends of the second spindle 11. The connection methods include, but are not limited to, welding, screwing, and tenoning. A slot 9 is provided on the second idler roller support plate 12, and the idler roller 2 is connected to the second idler roller support plate 12 by sliding into the slot 9. The idler roller 2 is thus connected to the intermediate bracket 6. Figure 4The left and right directions, the axial direction of the second spindle 11, and the axial direction of the roller 2 mounted on the intermediate bracket 6 are parallel to each other. Therefore, the slots 9 on the two second roller support plates 12 are aligned and parallel to each other, so that the roller 2 remains axially parallel to the axial direction of the second spindle 11 from the moment it is placed into the slot 9 until it falls to the bottom of the slot. In this embodiment, the side bracket 3 includes two parallel second spindles 11, which are fixedly connected by the second roller support plates 12. The connection methods include, but are not limited to, welding, screwing, and tenoning. The two ends of the second spindle 11 can be respectively provided with second pin holes 19 with parallel axes. The second pin holes 19 and the first pin holes 18 are connected by a connecting pin 4 (see Figure 1 The connection forms a hinged structure, thereby making the middle bracket 6 hinged to the side bracket 3, and the structure of the bracket module 5 is therefore flexible.

[0037] Figure 5 for Figure 1 A top view of the idler roller in the embodiment.

[0038] Optionally, the idler roller 2 includes a central shaft 13 disposed at both ends and a roller 14 rotatably connected to the central shaft 13. The central axis of the central shaft 13 and the rotation axis of the roller 14 coincide. Figure 5 The left-right direction is the length direction of the idler roller 2. The roller 14 is cylindrical. Two grooves 15 can be provided on the central shaft 13. These two grooves 15 can be arranged along the same radial direction of the central shaft and can be located at the same length of the central shaft. The two grooves 15 are recessed inward to the central shaft 13. The bottom of the groove has a sliding groove mating surface for forming a sliding connection with the side wall of the slot 9. The central shaft forms a sliding connection with the slot through the sliding groove mating surface, so that the idler roller 2 can slide in or out of the slot 9. The sliding groove mating surfaces of the opposite grooves 15 can be parallel to each other, and the distance between the sliding groove mating surfaces is less than the width of the slot 9. However, the difference between the distance between the sliding groove mating surfaces and the width of the slot should be less than a certain threshold, so that the slot 9 can just lock the sliding groove mating surface of the central shaft 13, so that the central shaft 13 can be stably installed in the slot 9, or slide in or out of the slot 9, without moving in other directions. Since the first idler support plate 8 and the second idler support plate 12 have the same slot 9, the idler 2 can be stably installed on the first idler support plate 8 and the second idler support plate 12, that is, stably installed on the intermediate bracket 6 and the side bracket 3 of the two types of support plates.

[0039] The technical scope of this utility model is not limited to the contents of the above description. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the scope of this utility model.

Claims

1. A flexible roll carrier characterized by, The flexible roller frame comprises: a roller (2) for supporting a conveying belt (16) of a belt conveyor; a bracket module (5) provided with a clamping groove (9), the roller (2) being capable of being installed on the bracket module (5) by sliding into the clamping groove (9) and being capable of being removed from the bracket module (5) by sliding out of the clamping groove (9); and a hook (1) connected to both ends of the bracket module (5), the hook (1) being movably connected to a body (7) of the belt conveyor.

2. The flexible idler bracket of claim 1, wherein, The bracket module (5) comprises a side bracket (3) and an intermediate bracket (6), the side bracket (3) being arranged on both sides of the intermediate bracket (6), the two side brackets (3) and the intermediate bracket (6) being sequentially hinged, the side bracket (3) and the hook (1) being movably connected, and the side bracket (3), the intermediate bracket (6) and the hook (1) constituting a flexible structure of the flexible roller frame.

3. The flexible idler bracket of claim 2, wherein, The side bracket (3) and the intermediate bracket (6) are both provided with the roller (2), and the top of the roller (2) supports the bottom of the conveying belt (16).

4. The flexible idler bracket of claim 2, wherein, The side bracket (3) comprises a first shaft (10) and a first roller support plate (8), two first roller support plates (8) being fixedly connected to both ends of the first shaft (10), the two first roller support plates (8) being provided with the clamping groove (9) aligned with each other, and the roller (2) being installed on the side bracket (3) through the clamping groove (9).

5. The flexible idler bracket of claim 4, wherein, The intermediate bracket (6) comprises a second shaft (11) and a second roller support plate (12), two second roller support plates (12) being fixedly connected to both ends of the second shaft (11), the two second roller support plates (12) being provided with the clamping groove (9) aligned with each other, and the roller (2) being installed on the intermediate bracket (6) through the clamping groove (9).

6. The flexible idler bracket of claim 5, wherein, The side bracket (3) comprises two first shafts (10) parallel to each other and a connecting shaft (17), the connecting shaft (17) being fixedly connected to the same side ends of the two first shafts (10), the axis of the connecting shaft (17) being perpendicular to the first shaft (10), and the connecting shaft (17) being rotatably connected to the hook (1).

7. The flexible idler bracket of claim 6, wherein, The other end of the first shaft (10) away from the connecting shaft (17) is provided with a first pin hole (18), the axis of the first pin hole (18) being parallel to the axis of the connecting shaft (17), and the first pin hole (18) being used for hinging to the intermediate bracket (6).

8. The flexible idler bracket of claim 7, wherein, Both ends of the second shaft (11) are respectively provided with second pin holes (19) parallel to each other, and the first pin hole (18) and the second pin hole (19) form a hinging structure.

9. The flexible idler bracket of claim 1, wherein, The roller (2) comprises a middle shaft (13) arranged at both ends and a roller drum (14) rotatably connected to the middle shaft (13), the roller drum (14) being used for supporting the conveying belt (16) and being capable of rotating with the movement of the conveying belt (16).

10. The flexible idler bracket of claim 9, wherein, One of the middle shafts (13) is provided with a groove (15), two of the grooves (15) are arranged along the same radial direction of the middle shaft (13), the bottom of the groove (15) has a sliding groove matching surface which is parallel to each other, and the middle shaft (13) is connected with the clamping groove (9) through the sliding groove matching surface.

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