Light-load synchronous wheel type roller mechanism

Abstract

The invention discloses a light-load synchronous wheel type roller mechanism, and belongs to the technical field of material conveying equipment. The non-penetrating type fixing shaft is adopted, the end bearings are rotationally connected with the rollers on the left side and the right side, the synchronous wheel and the limiting and fixing structure are integrated in the middle, gaps matched with the synchronous belt are formed in the two sides of the synchronous wheel through the upper limiting ring and the fixing ring, and therefore the single synchronous belt can drive a plurality of arranged roller mechanisms at the same time. Compared with a traditional roller conveying line, whole-line transmission can be completed only through a single synchronous belt, the distance between the rollers can be freely adjusted, synchronous belt transmission has the advantages of being low in noise and high in precision, and the roller conveying line is particularly suitable for light-load material conveying scenes sensitive to noise. The structure is compact, installation and maintenance are convenient, the conveying line structure can be effectively simplified, and the manufacturing cost and operation noise are reduced.

Description

Technical Field

[0001] This invention relates to the field of material conveying equipment technology, and specifically to a light-load synchronous wheel roller mechanism. Background Technology

[0002] Roller conveyors are widely used in logistics sorting, light industrial manufacturing, and other fields. Traditional roller conveyors mostly use multi-wedge belts, chains, or multiple flat belts as the transmission medium, which has the following technical defects: complex transmission structure, requiring multiple transmission belts or chains for multiple sets of rollers, resulting in high installation and commissioning costs; fixed roller spacing, requiring recutting or replacement of transmission belts / chains for adjustment, resulting in poor layout flexibility; chain drive is noisy, which cannot meet the requirements of use scenarios with strict requirements for quiet environments; and maintenance is cumbersome, with damage to local components easily leading to a complete line shutdown, resulting in high maintenance costs.

[0003] To address the aforementioned issues, existing technologies have not yet provided a simple, flexible, and low-noise roller conveyor solution. Therefore, there is an urgent need to develop a dedicated roller for roller conveyor lines that is easy to install, maintain, and operate quietly. Summary of the Invention

[0004] The present invention aims to overcome the technical defects of existing roller conveyor lines and provide a lightweight synchronous wheel roller mechanism with a compact structure, flexible layout and low transmission noise. This roller can realize the driving of multiple sets of rollers by a single synchronous belt, simplifying the conveyor line structure and improving the adaptability of the scene. Technical solution

[0005] A light-load synchronous pulley roller mechanism includes a fixed shaft, a roller assembly, a synchronous pulley assembly, and a limiting and fixing assembly. The fixed shaft is a non-through structure, with both ends tightly fitted with end bearings to support the roller assembly and achieve overall fixation of the mechanism. The roller assembly includes a left roller and a right roller, which are symmetrically arranged on both sides of the synchronous pulley. The ends of the left roller and the right roller are respectively connected to a fixed shaft through end bearings to achieve free rotation around the fixed shaft. The synchronous pulley assembly includes a synchronous pulley and pins. The shafts with holes on both sides of the synchronous pulley are rigidly connected to the rollers on both sides through the pins, so as to transmit the power of the synchronous belt to the rollers and drive the rollers to rotate synchronously. The limiting and fixing assembly includes a limiting ring and a fixing ring, which are respectively sleeved on the bearings on both sides of the synchronous pulley. The bearings are fixed on the perforated shafts on both sides of the synchronous pulley, and a gap is formed between the inner protrusion and the end face of the synchronous pulley. The size of the gap is slightly larger than the thickness of the synchronous belt, so that the synchronous belt can be embedded in the gap and fit tightly with the synchronous pulley to ensure power transmission efficiency. The protrusion of the fixed ring is provided with mounting holes, which can be used to fix the middle part of the entire mechanism to the frame with fasteners, and at the same time have the same synchronous belt limiting function as the limiting ring.

[0006] Furthermore, multiple roller conveyor mechanisms can be arranged in a straight line, with a single synchronous belt passing sequentially through the gaps between the synchronous wheel and the limiting ring, and between the synchronous wheel and the fixed ring of each mechanism, thereby achieving synchronous drive of all rollers.

[0007] Furthermore, the fixed shaft is provided with bearing mounting positions at both ends, and is connected to the end of the roller through end bearings to reduce rotational friction and improve the smoothness of the mechanism operation.

[0008] Furthermore, the synchronous pulley is connected to the limiting ring and the fixed ring through a central bearing, which reduces rotational resistance and improves transmission efficiency.

[0009] Furthermore, the inner protrusions of the limiting ring and the fixing ring are at the same height to ensure the meshing accuracy of the timing belt and the timing pulley, and to avoid skipping teeth or slipping.

[0010] Furthermore, the inner protrusions of the limiting ring and the fixing ring are slightly shorter than the groove width of the synchronous pulley, so that the inner protrusions of the limiting ring and the fixing ring form a gap with the flange of the synchronous pulley. This gap is slightly larger than the thickness of the synchronous belt used, so as to facilitate the installation of the synchronous belt. Attached Figure Description

[0011] Figure 1 This is the front view of the present invention; Figure 2 This is a partial cross-sectional view of the present invention; Figure 3 This is a half-sectional view of the present invention. Detailed Implementation

[0012] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present invention and are not intended to limit the present invention.

[0013] like Figure 1 As shown, the light-load synchronous wheel type roller mechanism includes a fixed shaft (8), a roller assembly, a synchronous wheel assembly, and a limit fixing assembly.

[0014] The fixed shaft (8) is a non-through structure, with both ends tightly fitted with end bearings (1) to support the roller assembly and achieve overall fixation of the mechanism. The fixed shaft (8) has bearing mounting positions at both ends, which are connected to the ends of the left roller (2) and right roller (7) through the end bearings (1), reducing rotational friction and improving the smoothness of the mechanism's operation.

[0015] The roller assembly includes a left roller (2) and a right roller (7), symmetrically arranged on both sides of the synchronous pulley (3). The ends of the left roller (2) and the right roller (7) are respectively connected to a fixed shaft (8) through end bearings (1) to achieve free rotation around the fixed shaft (8). Both the left roller (2) and the right roller (7) are hollow cylindrical structures, and their inner sides are rigidly connected to the synchronous pulley (3) through pins (6) for carrying and conveying materials.

[0016] The synchronous pulley assembly includes a synchronous pulley (3) and a pin (6). The two sides of the synchronous pulley (3) with perforated shafts are rotatably connected to the central bearing (5), the limiting ring (9), and the fixing ring (4) to reduce rotational resistance and improve transmission efficiency. At the same time, the synchronous pulley (3) is fixedly connected to the left roller (2) and the right roller (7) through the pin (6) to transmit the power of the synchronous pulley (3) to the two rollers and drive the rollers to rotate synchronously.

[0017] The limiting and fixing assembly includes a limiting ring (9) and a fixing ring (4). The limiting ring (9) and the fixing ring (4) are respectively sleeved on the central bearings (5) on the perforated shafts on both sides of the synchronous pulley (3). A gap is formed between the inner protrusion of the limiting ring (9) and the fixing ring (4) and the end face of the synchronous pulley (3). The gap size is slightly larger than the thickness of the synchronous belt, so that the synchronous belt can be embedded in the gap and fit tightly against the synchronous pulley (3) to ensure power transmission efficiency. The inner protrusion height of the limiting ring (9) and the fixing ring (4) is the same to ensure the meshing accuracy between the synchronous belt and the synchronous pulley (3) and avoid tooth skipping or slippage. The fixing ring (4) has a mounting hole on its outer side, which can be used to fix the entire mechanism to the frame bar with fasteners, and at the same time has the same synchronous belt limiting function as the limiting ring (9).

[0018] Multiple roller conveyor mechanisms can be arranged in a straight line, and a single synchronous belt passes through the gap between the synchronous wheel (3) and the limiting ring (9) and the synchronous wheel (3) and the fixed ring (4) of each mechanism in sequence to achieve synchronous drive of all rollers.

[0019] The working process of this invention is as follows: In the initial state, each roller conveyor mechanism is arranged in a straight line along the conveying direction. A single synchronous belt is embedded in the gap between the synchronous wheel (3) and the limiting ring (9), and between the synchronous wheel (3) and the fixed ring (4) of each mechanism, and meshes with the tooth of the synchronous wheel (3). When the synchronous belt is driven by the drive motor, the synchronous wheel (3) rotates synchronously with the synchronous belt, and transmits the torque to the left roller (2) and the right roller (7) through the pin (6), so that the two rollers rotate synchronously around the fixed shaft (8), thereby realizing the smooth conveying of materials on the conveyor line.

[0020] To adjust the conveyor line length, the number of roller conveyor mechanisms can be increased or decreased, or a synchronous belt of corresponding length can be replaced without modifying other transmission components, making operation convenient. To adjust the roller spacing, the spacing between adjacent mechanisms can be flexibly adjusted without changing the synchronous belt length to meet different material conveying needs.

[0021] To adapt to materials of different specifications and conveying scenarios, this invention features multiple independent adjustment dimensions: First, the conveyor line length can be adjusted by increasing or decreasing the number of roller conveyor mechanisms or replacing synchronous belts of corresponding lengths; second, the roller spacing can be adjusted, allowing free adjustment of the axial spacing between adjacent mechanisms without modifying the transmission system; third, the installation position can be adjusted, allowing the mechanism to be flexibly fixed to different positions on the frame bars via the mounting holes on the outside of the fixing ring (4), adapting to diverse layout requirements. These three adjustment dimensions are independent of each other and do not interfere with each other, enabling the device to adapt to the conveying of light-load materials of different specifications and scenarios.

[0022] In summary, this invention drives multiple sets of rollers with a single synchronous belt, uses a limiting ring (9) and a fixed ring (4) to limit the synchronous belt, and adopts a non-through fixed shaft (8) and modular structure design to achieve a light-load conveying solution with simplified structure, flexible layout, and low noise operation. Compared with traditional roller conveyor lines, this invention does not require multiple drive belts or chains, which greatly reduces manufacturing costs and installation and debugging difficulties; the meshing transmission method of synchronous belt and synchronous pulley (3) significantly reduces operating noise and is suitable for noise-sensitive working environments; the modular design allows individual roller mechanisms to be disassembled and replaced independently without affecting the normal operation of other units, reducing maintenance difficulty and downtime.

[0023] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural modifications made based on the inventive concept of the present invention and the description and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A light-load synchronous wheel type roller mechanism, characterized in that, Includes a fixed shaft (8), a roller assembly, a timing pulley assembly, and a limit fixing assembly: The fixed shaft (8) is a non-through structure, and its two ends are tightly fitted with the end bearings (1); The roller assembly includes a left roller (2) and a right roller (7), which are symmetrically arranged on both sides of the synchronous pulley (3) and are rotatably connected to the fixed shaft (8) through the end bearing (1); The synchronous pulley assembly includes a synchronous pulley (3) and a pin (6). The hole shaft part of the synchronous pulley (3) is rotatably connected to the fixing ring (4) and the limiting ring (9) through the central bearing (5), and is fixedly connected to the left roller (2) and the right roller (7) through the pin (6). The limiting and fixing assembly includes an upper limiting ring (9) and a fixing ring (4), which are respectively sleeved on the hole shaft parts on both sides of the synchronous wheel (3). The inner protrusions of the fixing ring (4) and the limiting ring (9) form a gap with the end face of the synchronous wheel (3) to adapt to the synchronous belt. The inner protrusion of the fixing ring (4) is provided with a connecting hole for fixed installation.

2. The light-load synchronous wheel type roller mechanism according to claim 1, characterized in that, The size of the gap is slightly larger than the thickness of the timing belt, so that the timing belt can be embedded in the gap and fit tightly against the timing pulley (3).

3. The light-load synchronous wheel type roller mechanism according to claim 1, characterized in that, When multiple roller conveyor mechanisms are arranged in a straight line, a single synchronous belt can pass through the gap between the synchronous wheel (3) and the upper limit ring (9) and the synchronous wheel (3) and the fixed ring (4) of each mechanism in sequence, so as to realize the synchronous drive of all rollers.

4. The light-load synchronous wheel type roller mechanism according to claim 1, characterized in that, The fixed shaft (8) has bearing mounting positions at both ends, and is connected to the ends of the left roller (2) and the right roller (7) through the end bearings (1).

5. A light-load synchronous wheel roller mechanism according to claim 1, characterized in that, The upper limit ring (9) and the inner protrusion of the fixed ring (4) are of the same height, ensuring the meshing accuracy between the synchronous belt and the synchronous pulley (3).

6. The light-load synchronous wheel type roller mechanism according to claim 1, characterized in that, The fixing ring (4) is fixedly connected to the frame square bar through the mounting hole, and also has the function of synchronous belt limit.

7. A light-load synchronous wheel type roller mechanism according to claim 1, characterized in that, The inner protrusions of the limiting ring (9) and the fixing ring (4) are slightly shorter than the groove width of the synchronous pulley (3), so that the inner protrusions of the limiting ring (9) and the fixing ring (4) form a gap with the flange of the synchronous pulley (3). This gap is slightly larger than the thickness of the synchronous belt used, so as to facilitate the installation of the synchronous belt.

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