Buffering carrier roller device with carrier roller convenient to replace and belt conveyor

Abstract

The utility model provides a buffering carrier roller device with a carrier roller convenient to replace and a belt conveyor, relates to the technical field of belt conveying equipment, and adopts the technical scheme that the buffering carrier roller device comprises an outer bracket and an inner bracket, and the inner bracket is detachably connected with the outer bracket; the inner bracket comprises a left carrier roller mounting rack, a middle carrier roller mounting rack and a right carrier roller mounting rack, the left carrier roller mounting rack is obliquely arranged, one end of the left carrier roller mounting rack is rotatably connected with the middle carrier roller mounting rack, the other end of the left carrier roller mounting rack is connected with the outer bracket, and the right carrier roller mounting rack is obliquely arranged; one end of the right carrier roller mounting frame is rotatably connected with the middle carrier roller mounting frame, the other end of the right carrier roller mounting frame is connected with the outer bracket, and carrier rollers are mounted on the left carrier roller mounting frame, the middle carrier roller mounting frame and the right carrier roller mounting frame. The carrier roller replacing device has the advantage that the carrier roller replacing efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of belt conveyor equipment, in particular to a buffer roller device which is convenient for replacing rollers, and further relates to a belt conveyor. Background Art

[0002] Belt conveyors are used to transport a variety of bulk cargoes. They boast a simple structure, ease of use, continuous operation, and long conveying distances. They are widely used in industrial and mining enterprises, ports, stations, and transportation yards. A belt conveyor consists of a frame, roller racks, rollers, belts, rollers, a motor, and a speed reducer. The frame is a long steel frame with multiple roller racks fixed in sequence along its length. Rollers are mounted on the roller racks, and the belt rests on top of the rollers. Rollers are located at each end of the frame. A motor and speed reducer are connected to the rollers, and the belt wraps around these rollers at each end. During operation, the motor and speed reducer drive the rollers, which in turn drive the belt along the rollers.

[0003] During the use of belt conveyors, due to continuous long-term operation, the rollers are worn and need to be replaced regularly. The roller frame under the rollers of traditional belt conveyors is composed of a base, a column, a pull rod, and a lower bracket welded together. Please refer to the roller frame disclosed in the patent document of publication number CN219567259U. The roller shafts at both ends of the roller are respectively stuck in the roller shaft mounting grooves at the upper end of the column and the upper end of the lower bracket. When the rollers need to be replaced, the rollers can only be removed and installed from the top of the roller frame. Therefore, it is necessary to lift the belt to remove the rollers. However, the belt of the belt conveyor is relatively heavy. For example, a 2-meter-wide steel belt weighs up to 60KG per meter. When replacing the rollers, a crane must be used to lift the belt away from the rollers to a certain height, and then the rollers can be replaced. Replacing the buffer rollers at the drop-off location below the transfer hopper is particularly difficult because the conveyor belt above it is compressed by the flexible sealing skirt at the bottom of the chute, leaving no room for upward movement. To replace the buffer rollers here, the skirt at the bottom of the chute must first be removed, and then the conveyor belt must be lifted to a certain height using a jack or other tool to obtain the vertical space required for roller replacement. This location needs to withstand the impact of the material, so the buffer roller racks are generally arranged densely, with limited space. Replacing the rollers is time-consuming and labor-intensive, and inefficient. Utility Model Content

[0004] The purpose of the utility model is to solve the problem that the rollers of the existing belt transmission device are inconvenient to replace, and to propose and design a buffer roller device and a belt conveyor that are convenient for replacing the rollers.

[0005] On the one hand, the technical solution adopted by the present invention to solve the above-mentioned technical problems is: a buffer roller device for convenient replacement of rollers, comprising an outer bracket and an inner bracket, and the inner bracket is detachably connected to the outer bracket; the inner bracket comprises a left roller mounting frame, a middle roller mounting frame and a right roller mounting frame, the left roller mounting frame is arranged obliquely, one end of the left roller mounting frame is rotatably connected to the middle roller mounting frame, and the rotatable connection here is preferably a hinge connection, the other end of the left roller mounting frame is connected to the outer bracket, and the right roller mounting frame is arranged obliquely, one end of the right roller mounting frame is rotatably connected to the middle roller mounting frame, and the rotatable connection here is preferably a hinge connection, the other end of the right roller mounting frame is connected to the outer bracket, and rollers are installed on the left roller mounting frame, the middle roller mounting frame and the right roller mounting frame. By setting an inner bracket and an outer bracket, the inner bracket has a three-section design. During normal use, the left roller mounting frame is tilted and one end is connected to a certain part of the left end of the outer bracket, and the right roller mounting frame is tilted and one end is connected to a certain part of the right end of the outer bracket. When the rollers need to be replaced or maintained, the connection between the left roller mounting frame and the outer bracket is loosened. Since the left roller mounting frame and the middle roller mounting frame are rotatably connected, the left roller mounting frame can be rotated to a horizontal state. Similarly, the right roller mounting frame is also the same. After the left roller mounting frame, the middle roller mounting frame and the right roller mounting frame are all in a horizontal state, it is convenient to take out and put in the rollers thereon, which facilitates the replacement and maintenance of the rollers, greatly improves the working efficiency, reduces the labor intensity of personnel, and ensures safety and quality.

[0006] Furthermore, the outer bracket includes a left upright frame and a right upright frame, the left roller mounting frame is connected to the left upright frame via a connector, and the right roller mounting frame is connected to the right upright frame via a connector. The connector is preferably a bolt or a pin, so that the left end of the left roller mounting frame can be raised to an inclined state and detachably connected to the left upright frame, and the right end of the right roller mounting frame can be raised to an inclined state and detachably connected to the right upright frame.

[0007] Furthermore, the left and right upright frames are connected by a connecting plate, and the bottom of the inner bracket is supported on the connecting plate to provide support for the inner bracket. The connecting plate is made of channel steel with an upward-facing opening. The sides of the channel steel limit the inner bracket, ensuring that the inner bracket is positioned within the long groove of the channel steel, facilitating horizontal movement of the inner bracket. Furthermore, in some embodiments, the bottom surface of the channel steel can be cut to form an incision, leaving only narrow edges on both sides of the bottom surface to support the inner bracket.

[0008] Furthermore, both the left and right vertical frames are provided with inner bracket movable openings. When the connection between the left roller mounting frame and the left vertical frame is disconnected, and the connection between the right roller mounting frame and the right vertical frame is disconnected, and the left and right roller mounting frames are placed horizontally on the connecting plate for support, the inner bracket can be pulled out from the inner bracket movable opening of the left or right vertical frame, making it easy to replace the rollers on the middle roller mounting frame.

[0009] Furthermore, a horizontal baffle is provided on the upper portion of each of the left and right vertical frames. The left roller mounting frame is located below the horizontal baffle of the left vertical frame, and the right roller mounting frame is located below the horizontal baffle of the right vertical frame. This can limit the upward rotation angle of the left and right roller mounting frames, acting as a limiter. When the rotation position is accurate, it is easier to install the connector.

[0010] Furthermore, two positioning slots are provided on the left roller mounting frame, the middle roller mounting frame, and the right roller mounting frame, and the rollers are engaged in the positioning slots, thereby realizing the installation and positioning of the rollers on the left roller mounting frame, the middle roller mounting frame, and the right roller mounting frame.

[0011] On the other hand, the utility model also provides a belt conveyor, comprising the above-mentioned buffer roller device for convenient replacement of rollers, wherein the outer bracket is fixed on the frame of the belt conveyor.

[0012] It can be seen from the above technical solutions that the present invention has the following advantages:

[0013] This solution provides a buffer roller device and a belt conveyor that are convenient for replacing rollers. The roller frame adopts an assembled structure of an outer bracket and an inner bracket. When replacing the roller, the roller can be separated from the roller frame without lifting the belt, which facilitates the disassembly and installation of the roller. At the same time, the roller frame can be disassembled and assembled, which facilitates the mobile installation of the belt conveyor at the construction and work site, greatly improving the working efficiency, while reducing the labor intensity of personnel and ensuring safety and quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solution of the present invention, the following is a brief introduction to the drawings required for the description. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 This is a schematic diagram of the main structure of the specific implementation method 1 of the present utility model.

[0016] Figure 2 This is a left-side structural schematic diagram of a specific embodiment 1 of the present utility model.

[0017] Figure 3 This is a schematic diagram of the main structure of the inner bracket installed with the roller in the specific embodiment 1 of the present utility model.

[0018] Figure 4 This is a schematic diagram of the main structure of the outer bracket in the specific implementation mode 1 of the present invention.

[0019] Figure 5 This is a left-side structural schematic diagram of the outer bracket in the specific implementation mode 1 of the present invention.

[0020] Figure 6 This is a schematic top view of the structure of the outer bracket in the specific embodiment 1 of the present invention.

[0021] Figure 7 This is a schematic diagram of the application structure of specific implementation method 2 of the present utility model.

[0022] In the figure, 1, outer bracket, 2, inner bracket, 3, roller, 4, connecting piece, 5, frame, 21, left roller mounting frame, 22, middle roller mounting frame, 23, right roller mounting frame, 24, positioning groove plate, 31, left vertical frame, 32, right vertical frame, 33, connecting plate, 34, horizontal baffle. DETAILED DESCRIPTION

[0023] In order to make the purpose, features, and advantages of the present invention more obvious and easy to understand, the technical solutions of the present invention will be clearly and completely described below in conjunction with the drawings in the specific embodiments. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this patent. In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other. Specific implementation method 1

[0025] like Figures 1 to 6 As shown, this embodiment provides a buffer roller device for convenient roller replacement, comprising an outer bracket 1 and an inner bracket 2, wherein the inner bracket 2 is detachably connected to the outer bracket 1; Figure 3The inner bracket 2 includes a left roller mounting frame 21, a middle roller mounting frame 22 and a right roller mounting frame 23. The left roller mounting frame 21 is arranged obliquely, one end of the left roller mounting frame 21 is rotatably connected to the middle roller mounting frame 22, and the other end of the left roller mounting frame 21 is connected to the outer bracket 1. The right roller mounting frame 23 is arranged obliquely, one end of the right roller mounting frame 23 is rotatably connected to the middle roller mounting frame 22, and the other end of the right roller mounting frame 23 is connected to the outer bracket 1. Rollers 3 are installed on the left roller mounting frame 21, the middle roller mounting frame 22 and the right roller mounting frame 23.

[0026] Among them, see Figure 4 、 Figure 5 、 Figure 6 The outer bracket 1 includes a left side frame 31 and a right side frame 32. The left roller mounting frame 21 is connected to the left side frame 31 through a connecting member 4, and the right roller mounting frame 23 is connected to the right side frame 32 through a connecting member 4, so that the left end of the left roller mounting frame 21 can be lifted up to an inclined state and detachably connected to the left side frame 31, and the right end of the right roller mounting frame 23 can be lifted up to an inclined state and detachably connected to the right side frame 32. The left and right upright frames 31 and 32 are both provided with inner bracket 2 movable openings. Specifically, the left and right upright frames 31 and 32 include two supporting columns, the tops of the two supporting columns are connected by a horizontal baffle 34, and an inner bracket 2 movable opening is formed between the two supporting columns and the horizontal baffle 34. When the connection between the left roller mounting frame 21 and the left upright frame 31 is disassembled, and the connection between the right roller mounting frame 23 and the right upright frame 32 is disassembled, and the left roller mounting frame 21 and the right roller mounting frame 23 are placed horizontally supported on the connecting plate 33, the inner bracket 2 can be pulled out from the inner bracket 2 movable opening of the left upright frame 31 or the right upright frame 32, so as to facilitate the replacement of the roller 3 on the middle roller mounting frame 22; the left roller mounting frame 21 is located below the horizontal baffle 34 of the left upright frame 31, and the right roller mounting frame 23 is located below the horizontal baffle 34 of the right upright frame 32. It can limit the upward rotation angle of the left roller mounting frame 21 and the right roller mounting frame 23, play a limiting role, and it is easier to install the connector 4 after the rotation position is accurate. The left vertical frame 31 and the right vertical frame 32 are connected by a connecting plate 33, and the bottom of the inner bracket 2 is supported on the connecting plate 33 to support the inner bracket 2. The connecting plate 33 is made of channel steel, and the channel steel opening is upward. The two sides of the channel steel will limit the inner bracket 2 to ensure that the inner bracket 2 is in the long groove of the channel steel, which is conducive to the horizontal movement of the inner bracket 2. In some embodiments, the bottom surface of the channel steel can be cut, leaving only narrow edges on both sides of the bottom surface to support the inner bracket 2, and also to adapt to the connection between the support columns in the left vertical frame 31 and the right vertical frame 32.

[0027] Also, see Figure 3 Two positioning grooves 24 are provided on the left roller mounting frame 21, the middle roller mounting frame 22, and the right roller mounting frame 23, and the roller 3 is engaged with the positioning grooves 24. The rollers 3 on the left roller mounting frame 21, the middle roller mounting frame 22, and the right roller mounting frame 23 are installed and positioned.

[0028] The operating principle is as follows: during normal use, the left roller mounting frame 21 is arranged at an angle and one end is connected to the left vertical frame 31 by a connecting piece 4, and the right roller mounting frame 23 is arranged at an angle and one end is connected to the right vertical frame 32 by a connecting piece 4. When the roller 3 needs to be replaced or maintained, the connecting piece 4 between the left roller mounting frame 21 and the left vertical frame 31 is removed, the left roller mounting frame 21 is rotated to a horizontal position, and the roller 3 on the left roller mounting frame 21 is taken out. Similarly, the right roller mounting frame 23 is operated in the same way. After taking out the roller 3 on the right roller mounting frame 23, the inner bracket 2 is pulled out to expose the roller 3 on the middle roller mounting frame 22, and the roller 3 on the middle roller mounting frame 22 is taken out, so as to facilitate the disassembly and installation of the roller 3. Specific embodiment 2

[0030] This embodiment provides a belt conveyor, including the buffer roller 3 device for convenient replacement of the roller 3 described in the embodiment 1, and the outer bracket 1 is fixed on the frame 5 of the belt conveyor, see Figure 7 , Figure 7 Shown is a schematic diagram of an application scenario for a belt conveyor.

[0031] The terms "upper," "lower," "outer," "inner," and the like (if any) in the specification and claims of this utility model and the accompanying drawings are used to distinguish relative positions and are not necessarily qualitative. It should be understood that the terms used in this manner are interchangeable where appropriate, such that the embodiments of the utility model described herein can be implemented in sequences other than those illustrated or described herein. Furthermore, the terms "including," "having," and any variations thereof are intended to cover non-exclusive inclusions.

[0032] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; internal connections between two components; wireless connections or wired connections. A person skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0033] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A buffer roller device that is convenient for replacing rollers, characterized in that: It includes an outer bracket and an inner bracket, and the inner bracket is detachably connected to the outer bracket; the inner bracket includes a left roller mounting frame, a middle roller mounting frame and a right roller mounting frame, the left roller mounting frame is arranged obliquely, one end of the left roller mounting frame is rotatably connected to the middle roller mounting frame, and the other end of the left roller mounting frame is connected to the outer bracket, the right roller mounting frame is arranged obliquely, one end of the right roller mounting frame is rotatably connected to the middle roller mounting frame, and the other end of the right roller mounting frame is connected to the outer bracket, and rollers are installed on the left roller mounting frame, the middle roller mounting frame and the right roller mounting frame.

2. The buffer roller device for convenient roller replacement according to claim 1, characterized in that: The outer bracket comprises a left vertical frame and a right vertical frame. The left roller mounting frame is connected to the left vertical frame via a connecting piece, and the right roller mounting frame is connected to the right vertical frame via a connecting piece.

3. The buffer roller device for convenient roller replacement according to claim 2, characterized in that: The left side upright frame and the right side upright frame are connected via a connecting plate, and the bottom of the inner bracket is supported on the connecting plate.

4. The buffer roller device for convenient roller replacement according to claim 3, characterized in that: The connecting plate is made of channel steel with the opening facing upwards.

5. The buffer roller device for convenient roller replacement according to claim 4, characterized in that: The bottom surface of the channel steel is provided with a cutout.

6. The buffer roller device for convenient roller replacement according to claim 3, characterized in that: Both the left side stand and the right side stand are provided with inner bracket moving openings.

7. The buffer roller device for convenient roller replacement according to claim 5, characterized in that: Horizontal baffles are provided on the upper parts of the left vertical frame and the right vertical frame. The left roller mounting frame is located below the horizontal baffle of the left vertical frame, and the right roller mounting frame is located below the horizontal baffle of the right vertical frame.

8. The buffer roller device for facilitating roller replacement according to any one of claims 1 to 7, characterized in that: Two positioning groove plates are provided on the left roller mounting frame, the middle roller mounting frame and the right roller mounting frame, and the rollers are engaged in the positioning groove plates.

9. A belt conveyor, characterized in that: The invention comprises a buffer roller device for facilitating roller replacement as described in any one of claims 1 to 8, wherein the outer bracket is fixed on the frame of the belt conveyor.

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