Expanding device for replacing roller of belt conveyor

Abstract

The utility model discloses an expansion device for replacing a roller of a belt conveyor, which comprises a plurality of guide rods, a plurality of expansion devices and a plurality of expansion devices, each arc-shaped support comprises a plurality of clamping grooves which protrude from the inner surface of the arc-shaped support and extend in the axial direction of the arc-shaped support, and when the arc-shaped support is used, the two arc-shaped supports are arranged in the areas of the two ends of the multiple guide rods through cooperation of the multiple clamping grooves and the multiple guide rods so as to support and expand the conveying belt; and the fixing mechanism is used for fixing the positions of the two arc-shaped brackets. According to the technical scheme, it can be guaranteed that an operator easily and smoothly replaces the roller of the belt conveyor, and the operation difficulty and the overhaul load are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of transportation equipment, in particular to an expansion device for replacing rollers of a belt conveyor. Background Art

[0002] Belt conveyors are mainly used for the transportation and transmission of materials. They are equipment and facilities for convenient and stable material transmission in metallurgical enterprises, and can operate continuously. Belt conveyors generally include head wheels, tail wheels, frames, rollers, tension wheels, sweepers, deviation correction devices, safety facilities and other components. When only the head and tail wheels or tension wheels need to be replaced in the entire belt conveyor, the conveyor belt covers the frame and rollers. When the rollers that need to be replaced are taken out, the conveyor belt is soft and will collapse without support. At this time, it is easier to remove the old rollers, but it is more difficult to install new rollers. Due to the gravity of the conveyor belt itself and the collapse of the conveyor belt, it is necessary to install the rollers while adjusting the conveyor belt to cover the rollers, and then force the rollers to pass through the conveyor belt. During this penetration process, the maintenance personnel need to consume more physical strength to complete it.

[0003] Based on this, there is room for improvement in the prior art. Utility Model Content

[0004] The main purpose of the utility model is to provide an expansion device for replacing belt conveyor rollers, so as to solve the problem of difficult operation when manually replacing belt conveyor rollers.

[0005] According to one aspect of the utility model, an expansion device for replacing a belt conveyor roller is provided, comprising:

[0006] A plurality of guide rods, when in use, the plurality of guide rods are inserted between the roller and the conveyor belt along the axial direction of the roller;

[0007] Two arc-shaped brackets, each arc-shaped bracket includes a plurality of slots protruding from its inner surface and extending along its axial direction, and when in use, the two arc-shaped brackets are arranged at both end areas of the plurality of guide rods through the cooperation of the plurality of slots and the plurality of guide rods to support and expand the conveyor belt;

[0008] The fixing mechanism is used to fix the positions of the two arc-shaped brackets.

[0009] According to an embodiment of the utility model, the number of the guide rods is three, and each arc-shaped bracket includes three slots respectively arranged at two ends and a middle portion thereof in the circumferential direction.

[0010] According to an embodiment of the utility model, the cross section of the guide rod is circular, and the cross section of the clamping groove is arc-shaped.

[0011] According to an embodiment of the present utility model, each arc-shaped bracket includes an arc-shaped first partial bracket and a second partial bracket, and the first partial bracket can slide circumferentially relative to the second partial bracket to change the size of the arc-shaped bracket.

[0012] According to an embodiment of the present invention, the second part of the bracket has a sliding groove or a sliding cavity, and the first part of the bracket is slidably disposed in the sliding groove or the sliding cavity.

[0013] According to an embodiment of the utility model, it also includes a fastener for fixing the first partial bracket and the second partial bracket.

[0014] According to an embodiment of the utility model, a baffle is provided on the outer side of the multiple slots of at least one arc-shaped bracket along the extension direction thereof.

[0015] According to an embodiment of the utility model, the fixing mechanism includes a plurality of pull ropes, and when in use, the pull ropes are connected between the arc-shaped bracket and the external mounting structure to tighten the arc-shaped bracket from a side away from the center of the circle.

[0016] According to one embodiment of the utility model, two arc-shaped brackets are each provided with a plurality of rope holes; the first ends of a plurality of pull ropes used to connect each arc-shaped bracket are provided with a plurality of first hooks for cooperating with the plurality of rope holes, and the second ends are commonly connected to a second hook for hooking to an external mounting structure.

[0017] According to an embodiment of the utility model, the drawstring is provided with a length adjusting component.

[0018] In the technical solution of the utility model, when the roller needs to be replaced, first, multiple guide rods can be easily inserted between the roller and the conveyor belt, and then the arc bracket is set at the two end areas of the multiple guide rods through the cooperation of the multiple slots of the arc bracket and the multiple guide rods. In this way, the arc bracket can be easily set between the roller and the conveyor belt to support and expand the conveyor belt. After the two arc brackets are installed and fixed, the roller can be replaced smoothly, reducing the difficulty of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings required for use in the embodiment will be briefly introduced below. Obviously, the drawings described below are only some implementation cases of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 A schematic diagram showing a perspective of the belt conveyor roller replacement expansion device according to an embodiment of the utility model in a use state;

[0021] Figure 2A schematic diagram showing another perspective of the belt conveyor roller replacement expansion device according to an embodiment of the utility model in a use state;

[0022] Figure 3 A schematic diagram showing a perspective of an expansion device for replacing belt conveyor rollers according to an embodiment of the utility model;

[0023] Figure 4 A schematic diagram showing another perspective of the expansion device for replacing belt conveyor rollers according to an embodiment of the utility model;

[0024] Figure 5 A schematic diagram showing a viewing angle of the arc-shaped bracket according to an embodiment of the utility model;

[0025] Figure 6 A schematic diagram showing another viewing angle of an arc-shaped bracket according to an embodiment of the utility model;

[0026] Figure 7 A schematic diagram showing another viewing angle of another arc-shaped bracket according to an embodiment of the utility model;

[0027] Figure 8 A schematic diagram showing a fixing mechanism according to an embodiment of the utility model is shown.

[0028] Description of reference numerals:

[0029] 10. Guide rod; 20. Arc bracket; 21. First part of the bracket; 22. Slot; 23. Second part of the bracket; 24. Fastener; 26. Baffle; 28. Rope hole; 30. Fixing mechanism; 32. Pull rope; 34. First hook; 36. Second hook; 38. Length adjustment component; 100. Expansion device for replacing belt conveyor rollers; 210. Mounting bracket; 220. Roller; 230. Conveyor belt; 240. Roller. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the embodiments of the present invention are further described in detail below in combination with specific embodiments and with reference to the accompanying drawings.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0032] Figure 1 The figure shows a front view of the belt conveyor roller replacement expansion device 100 according to the embodiment of the utility model in the use state, Figure 2 The right side view of the belt conveyor roller replacement expansion device 100 according to the embodiment of the utility model is shown in the use state. Figure 1 and Figure 2 The belt conveyor includes a mounting bracket 210 , a roller 220 rotatably connected to the mounting bracket 210 , a conveyor belt 230 drivingly connected to the roller 220 , and a plurality of rollers 240 supporting the conveyor belt 230 . Figure 3 The front view of the expansion device 100 for replacing belt conveyor rollers according to the embodiment of the utility model is shown. Figure 4 FIG. 2 shows a right side view of an expansion device 100 for replacing belt conveyor rollers according to an embodiment of the present invention. Figures 1 to 4 The expansion device 100 for replacing belt conveyor rollers includes: a plurality of guide rods 10, which are inserted between the surfaces of the roller 220 and the conveyor belt 230 that are in contact with each other along the axial direction of the roller 220 when in use; two arc-shaped brackets 20, each arc-shaped bracket 20 includes a plurality of grooves 22 protruding from its inner surface and extending along its axial direction, and when in use, the two arc-shaped brackets 20 are arranged at the two end areas of the plurality of guide rods 10 through the cooperation of the plurality of grooves 22 and the plurality of guide rods 10 (here "cooperation" may mean that the plurality of guide rods 10 are inserted into the plurality of grooves 22) to support and expand the conveyor belt 230; a fixing mechanism 30, which is used to fix the positions of the two arc-shaped brackets 20.

[0033] In the embodiment of the utility model, the device 100 is a combination and is assembled on site when in use. When the roller 220 needs to be replaced, first, a plurality of guide rods 10 can be inserted between the roller 220 and the conveyor belt 230 relatively easily. Since the roller 220 and the conveyor belt 230 fit closely together, it would be difficult to operate if a whole curved plate is directly placed between the roller 220 and the conveyor belt 230. In order to solve this problem, the present application adopts a plurality of guide rods 10 to be inserted between the roller 220 and the conveyor belt 230. Since the guide rod 10 is a slender structure, the contact area with the roller 220 and the conveyor belt 230 is small, and it can be inserted between the two relatively easily. Afterwards, the arc bracket 20 is arranged at the two end areas of the multiple guide rods 10 by cooperating with the multiple slots 22 of the arc bracket 20 and the multiple guide rods 10. The slots of the arc bracket 20 can be aligned with the guide rods 10 and then the arc bracket 20 can be slid along the guide rods 10 to install it on the guide rods 10. In this way, the arc bracket 20 can be easily arranged between the roller 220 and the conveyor belt 230, and the conveyor belt 230 is supported as a space for the roller 220 to easily pass through. After the two arc brackets 20 are installed and fixed to maintain this space, the roller 220 can be replaced more easily and smoothly, reducing the difficulty of operation. The utility model sets the slot 22 on the inner surface of the arc bracket 20, so that the inner surface of the arc bracket 20 is set on the guide rod 10 through the slot 22, so that the guide rod 10 is spaced between the arc bracket 20 and the roller 220, instead of the arc bracket 20 directly contacting the roller 220. The contact area between the guide rod 10 and the roller 220 is small, which is beneficial to reducing the resistance encountered during the replacement process of the roller 220.

[0034] By designing an expansion device 100 for roller replacement, the conveyor belt 230 at the roller 220 that needs to be replaced is supported and expanded, and the conveyor belt 230 and the roller 220 are fixed by the fixing mechanism 30 (for example, tensioned by the pull rope 32 to be described later) to keep a certain distance between the conveyor belt 230 and the roller 220, so that the maintenance personnel can easily and smoothly remove the old roller and eliminate the huge friction generated when the conveyor belt 230 and the roller 220 are in contact with each other; after the old roller is removed, the arc bracket 20 maintains the position and space unchanged, and the new roller is transferred to the inner side of the arc bracket 20 to the roller installation position in the same way for fixation. During the transmission process, the new roller and the conveyor belt 230 do not generate friction between each other, which avoids the maintenance personnel using a crowbar to pry the conveyor belt to guide the roller through, which can reduce the physical exertion of the maintenance personnel and the investment of maintenance force.

[0035] In some embodiments, the number of guide rods 10 is three, and accordingly, each arc bracket 20 includes three slots 22 respectively arranged at both ends and the middle of the arc bracket 20, so that the three guide rods 10 are evenly distributed on the arc bracket 20. When in use, the three guide rods 10 can be respectively arranged on the outer side of the upper part, the middle part and the lower part of the roller 220 to correspond to the positions of the three slots 22 of the arc bracket 20. In this way, the conveyor belt 230 can be fully expanded from multiple positions, so that the arc bracket 20 can enter between the roller 220 and the conveyor belt 230 through the guidance of multiple guide rods 10. Of course, the present application is not limited to this, and a larger number of guide rods 10 can also be set according to actual conditions. The center angle of the arc bracket 20 can be set according to actual conditions. Preferably, the center angle of the arc bracket 20 is about 180 degrees. The guide rod 10 can be a slender structure with various cross-sectional shapes. In some embodiments, the cross section of the guide rod 10 is circular, and the cross section of the slot 22 is a matching arc shape. The arc bracket 20 can slide relative to the guide rod 10 to adaptably adjust the distance between the two arc brackets 20 according to the axial size of the roller 220. The length of the guide rod 10 can be greater than the width of the conveyor belt 230. When the guide rod 10 is inserted between the roller 220 and the conveyor belt 230, its two ends extend from the conveyor belt 230, which facilitates the installation of the arc bracket 20.

[0036] Figure 5 A schematic diagram showing a viewing angle of the arc-shaped bracket 20 according to an embodiment of the utility model is shown. Figure 6 and Figure 7 Schematic diagrams showing two arc-shaped brackets 20 from another perspective are shown. Figures 5 to 7In some embodiments, each arc bracket 20 includes an arc-shaped first partial bracket 21 and a second partial bracket 23. The first partial bracket 21 can slide relative to the second partial bracket 23 along the circumferential direction X to change the size of the arc bracket 20, so that it can be suitable for the replacement environment of rollers 220 of various sizes. In some embodiments, the second partial bracket 23 has a slide groove or a sliding cavity, and the first partial bracket 21 can be slidably disposed in the slide groove or the sliding cavity. The device 100 also includes a fastener 24 (such as a set screw) that fixes the first partial bracket 21 and the second partial bracket 23. After the arc bracket 20 is adjusted to a suitable size by sliding the first partial bracket 21 relative to the second partial bracket 23, the first partial bracket 21 and the second partial bracket 23 are fixed by the fastener 24. The first bracket 21 and the second bracket 23 are both provided with a slot 22 to cooperate with the guide rod 10. The first bracket 21 can be provided with a slot 22 only at one end away from the second bracket 21 to avoid the redundant slot from hindering the sliding. The second bracket 23 can be provided with two slots 22, for example, and the two slots 22 can be respectively provided at the two ends of the circumference of the second bracket 23. In actual operation, the first bracket 21 and the second bracket 23 can be combined into an arc bracket 20 of a desired size, and then the arc bracket 20 can be installed on a plurality of guide rods 10. Alternatively, the first bracket 21 and the second bracket 23 can be respectively installed on the corresponding guide rods 10 and then the two can be combined and fixed into the arc bracket 20.

[0037] When installing a new roller, the new roller can be inserted into the inner space of the conveyor belt 230 supported by the arc bracket 20 along the axial direction of the arc bracket 20. During this process, the new roller may contact the guide rod 10 and apply a thrust along the axial direction of the arc bracket 20 to the guide rod 10, causing the guide rod 10 to be pushed out and out of the slot 22. To avoid this problem, in an embodiment of the utility model, a baffle 26 is provided on the outer side of the multiple slots 22 of at least one arc bracket 20 along the extension direction thereof, and the baffle 26 prevents the guide rod 10 from being pushed out of the slot 22. For example, Figure 2 For example, when installing a new roller, remove the new roller from Figure 2 The left side of the guide rod 10 is pushed to the right side, and accordingly the guide rod 10 may be pushed to the right side, so that Figure 2 A baffle 26 (such as Figure 7 shown).

[0038] Figure 8 A schematic diagram showing a fixing mechanism 30 according to an embodiment of the present utility model is shown, Figure 1 and Figure 8In some embodiments, the fixing mechanism 30 includes a plurality of pull ropes 32. When in use, the pull ropes 32 are connected between the arc bracket 20 and the external mounting structure to tighten the arc bracket 20 from the side away from the center of the circle. The external mounting structure can be, for example, a component on the mounting bracket 210 of the belt conveyor, or can also be any component suitable for providing a mounting function at the operation site. By tightening the arc bracket 20 from the side away from the center of the circle, the tension is balanced with the thrust of the arc bracket 20 from the conveyor belt 230, thereby fixing the position of the arc bracket 20. In addition, a greater pulling force can be applied to the arc bracket 20 through the pull rope 32 to further expand the conveyor belt 230 to facilitate the replacement of the roller 220.

[0039] refer to Figure 1 as well as Figures 6 to 8 In some embodiments, the two arc-shaped brackets 20 are each provided with a plurality of rope holes 28; the first ends of the plurality of pull ropes 32 used to connect each arc-shaped bracket 20 are provided with a plurality of first hooks 34 used to cooperate with the plurality of rope holes 20, and the second ends are commonly connected to a second hook 36 used to hook to an external mounting structure. For example, each arc-shaped bracket 20 can be provided with three rope holes 28, which are respectively arranged at the circumferential ends and the middle of the arc-shaped bracket 20, and each arc-shaped bracket 20 is tightened by three pull ropes 32. Thus, a uniform and effective tensioning force is applied to the arc-shaped bracket 20. The second ends of the plurality of pull ropes 32 are connected to the common second hook 36, which can simplify the operation.

[0040] refer to Figure 8 In some embodiments, the pull rope 32 is provided with a length adjustment component 38. The length and angle of the pull rope 32 can be adjusted by the length adjustment component 38 according to the actual use environment on site (for example, the distance between the external mounting structure and the arc-shaped bracket 20) to ensure the required tensioning force. The length adjustment component 38 can include, for example, a screw nut fitting, or a pull rope tensioner.

[0041] The method for replacing a roller using the device 100 as described above may include the following steps:

[0042] S1, inserting a plurality of guide rods 10 between the roller 220 and the conveyor belt 230;

[0043] S2, through the cooperation of the plurality of slots 22 and the plurality of guide rods 10, two arc-shaped brackets 20 are arranged at the two end areas of the plurality of guide rods 10 to support and expand the conveyor belt 230;

[0044] S3, installing and fixing the two arc-shaped brackets 20 through the fixing mechanism 30;

[0045] S4, remove the old roller and install the new roller;

[0046] S5, removing the two arc-shaped brackets 20 and the plurality of guide rods 10.

[0047] In summary, through the technical solution of the utility model, the conveyor belt can be supported to form a space larger than the outer diameter of the roller so that the roller can be replaced more easily, solving the problem of difficulty in replacement for maintenance personnel and reducing the maintenance load. The utility model mainly supports the conveyor belt through the guide rod and the arc bracket and fixes it through external force to form a space, and also sets a first part bracket and a second part bracket that can slide relatively to change the size of the arc bracket, so as to be suitable for the replacement environment of conveyor belt rollers of various sizes, and adjusts the expansion support space of the arc bracket according to the size of the roller.

[0048] Those skilled in the art should understand that the discussion of any of the above embodiments is only exemplary and is not intended to imply that the scope of the disclosure of the embodiments of the present invention (including the claims) is limited to these examples; under the concept of the embodiments of the present invention, the technical features in the above embodiments or different embodiments can also be combined, and there are many other changes in different aspects of the above embodiments of the present invention, which are not provided in detail for the sake of simplicity. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present invention should be included in the protection scope of the embodiments of the present invention.

Claims

1. An expansion device (100) for replacing belt conveyor rollers, characterized in that: include: A plurality of guide rods (10), wherein when in use, the plurality of guide rods (10) are inserted between the roller (220) and the conveyor belt (230) along the axial direction of the roller (220); Two arc-shaped brackets (20), each of the arc-shaped brackets (20) comprising a plurality of slots (22) protruding from its inner surface and extending along its axial direction, and when in use, the two arc-shaped brackets (20) are arranged at the two end regions of the plurality of guide rods (10) through the cooperation of the plurality of slots (22) and the plurality of guide rods (10) to support and expand the conveyor belt (230); The fixing mechanism (30) is used to fix the positions of the two arc-shaped brackets (20).

2. The device (100) according to claim 1, characterized in that The number of the guide rods (10) is three, and each of the arc-shaped brackets (20) comprises three clamping grooves (22) respectively arranged at both ends and the middle of the arc-shaped bracket.

3. The device (100) according to claim 1, characterized in that The cross section of the guide rod (10) is circular, and the cross section of the clamping groove (22) is arc-shaped.

4. The device (100) according to claim 1, characterized in that Each arc-shaped bracket (20) comprises an arc-shaped first bracket portion (21) and a second bracket portion (23); the first bracket portion (21) can slide circumferentially relative to the second bracket portion (23) to change the size of the arc-shaped bracket (20).

5. The device (100) according to claim 4, characterized in that The second part bracket (23) has a sliding groove or a sliding cavity, and the first part bracket (21) is slidably arranged in the sliding groove or the sliding cavity.

6. The device (100) according to claim 4, characterized in that It also includes a fastener (24) for fixedly connecting the first partial bracket (21) and the second partial bracket (23).

7. The device (100) according to claim 1, characterized in that A baffle (26) is provided on the outer side of the plurality of slots (22) of at least one of the arc-shaped brackets (20) along the extension direction thereof.

8. The device (100) according to claim 1, characterized in that The fixing mechanism (30) comprises a plurality of pull ropes (32). When in use, the pull ropes (32) are connected between the arc-shaped bracket (20) and an external mounting structure to tighten the arc-shaped bracket (20) from a side away from the center of the circle.

9. The device (100) according to claim 8, characterized in that The two arc-shaped brackets (20) are each provided with a plurality of rope holes (28); the first ends of the plurality of pull ropes (32) used to connect each of the arc-shaped brackets (20) are provided with a plurality of first hooks (34) used to cooperate with the plurality of rope holes (28), and the second ends are commonly connected to a second hook (36) used to hook onto an external mounting structure.

10. The device (100) according to claim 8, characterized in that The drawstring (32) is provided with a length adjustment component (38).

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