Single-roller anti-clogging cutter supporting structure

Abstract

The utility model belongs to the technical field of conveying machinery, and particularly discloses a single-roller anti-clogging cutter supporting structure which comprises a rotating shaft, a shaft seat, a bearing and a roller, the rotating shaft penetrates through the shaft seat and the bearing, the bearing is arranged on the inner side of the roller, the shaft seat and the roller are adjacently arranged in the axial direction of the rotating shaft, and the bearing is arranged in the roller. And wood chips or powder particles are prevented from entering the bearing or the bearing seat, so that blockage is prevented from influencing transmission, the maintenance frequency can be greatly reduced, the working efficiency is improved, and the service life is prolonged.

Description

Technical Field

[0001] This utility model belongs to the field of conveying machinery technology, specifically relating to a single-roller anti-clogging knife support structure. Background Technology

[0002] In wood processing, powder conveying, and similar industries, traditional roller support structures often employ external bearing housings, exposing the bearings to the external environment. During prolonged operation, this design is susceptible to contamination from sawdust, powder, and other impurities, leading to dust accumulation and blockage within the bearings. This, in turn, causes a series of problems such as poor transmission, increased friction, and accelerated wear. These issues not only severely impact equipment operating efficiency and product quality but also significantly increase maintenance costs and workload.

[0003] Furthermore, traditional roller support structures present numerous lubrication challenges. Because the bearings are externally mounted, effective centralized lubrication is difficult to achieve, often requiring manual, periodic lubrication. This not only increases labor intensity but also makes it difficult to ensure uniform and timely lubrication. Simultaneously, the complex and variable external environment makes the lubricating oil susceptible to contamination, further shortening the bearing's lifespan. Utility Model Content

[0004] To address the problems in existing technologies where wood chips or powder easily enter bearings or bearing housings, causing jamming and affecting transmission, resulting in high maintenance frequency, low working efficiency, and shortened service life, a single-roller anti-clogging knife support structure is proposed. This utility model provides the following technical solution:

[0005] A single-roller anti-clogging knife support structure includes a rotating shaft, a bearing seat, a bearing, and a roller. The rotating shaft passes through the bearing seat and the bearing. The bearing is disposed inside the roller. The bearing seat and the roller are arranged adjacent to each other along the axial direction of the rotating shaft.

[0006] Preferably, the upper part of the bearing seat is provided with a support hole, which is matched with the inner diameter of the bearing.

[0007] Preferably, the lower part of the bearing seat is provided with an oil inlet hole, which is connected upward to the support hole.

[0008] Preferably, the bearing includes a mounting base plate, a vertical support, and a top cover. The top cover is detachably connected to the vertical support. The inner side of the top cover is provided with an upper arc-shaped groove, and the upper side of the vertical support is provided with a lower arc-shaped groove. After the top cover is connected to the vertical support, a support hole is formed.

[0009] Preferably, the upper cover has countersunk holes on both sides, and bolts are threaded into the countersunk holes. The upper cover is connected to the support by bolts.

[0010] Preferably, the opening of the lower arc-shaped groove faces an oblique direction, and the opening of the upper arc-shaped groove faces an oblique downward direction.

[0011] Preferably, an oil guide groove is provided on the inner wall of the support hole, and the oil guide groove is connected to the oil inlet hole.

[0012] Preferably, an installation groove is provided on the inner wall of the end of the roller, and the outer wall of the bearing abuts against the inner wall of the installation groove.

[0013] Preferably, the mounting groove is provided with a mounting through hole to facilitate bearing installation, the mounting through hole passing through the roller and extending out of the end of the roller.

[0014] Preferably, a locking groove is provided on the outer wall of the end of the roller, and a locking ring for fastening bolts is threaded onto the locking groove.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. By embedding the bearing inside the roller, this solution successfully isolates the bearing from impurities such as wood chips and powder, effectively preventing the bearing from getting stuck inside. It also reduces phenomena such as poor transmission, increased friction and accelerated wear caused by impurities, thereby improving the operational stability and reliability of the equipment.

[0017] 2. This solution adds an oil inlet hole at the bottom of the bearing seat, which is connected to the oil guide groove on the inner wall of the support hole, forming a highly efficient lubrication system. This allows the lubricating oil to be evenly and timely distributed to the bearing area, providing continuous lubrication for the bearing.

[0018] 3. The bearing seat adopts a combination structure of mounting base plate, vertical support and top cover, and is detachably connected by bolts, which simplifies the assembly process and reduces maintenance costs. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the roller and bearing of this utility model;

[0021] Figure 3 This is a three-dimensional structural diagram of the bearing seat;

[0022] Figure 4 This is a side view of the bearing housing.

[0023] Figure 5 This is a schematic diagram of the main structure of the rotating shaft;

[0024] In the attached diagram: 1. Shaft seat; 11. Mounting base plate; 111. Fixing hole; 112. Slot; 12. Vertical support; 121. Lower arc groove; 13. Top cover; 131. Upper arc groove; 132. Countersunk hole; 14. Support hole; 15. Oil inlet hole; 2. Rotating shaft; 21. Oil passage hole; 22. Connecting hole; 23. Oil outlet hole; 3. Bearing; 4. Roller; 41. Mounting groove; 42. Mounting through hole; 43. Locking groove; 5. Frame; 6. Drive shaft. Detailed Implementation

[0025] The directional terms mentioned in the following embodiments, such as "up", "down", "left", and "right", are only for reference to the accompanying drawings. Therefore, the directional terms used are for illustration and not for limiting the invention of this utility model.

[0026] like Figure 1-5 As shown, a single-roller anti-clogging knife support structure includes a rotating shaft 2, a bearing seat 1, a bearing 3, and a roller 4 for continuing to feed material forward. The rotating shaft 2 passes through the bearing seat 1 and the bearing 3. The bearing 3 is disposed inside the roller 4. The bearing seat 1 and the roller 4 are arranged adjacent to each other along the axial direction of the rotating shaft 2. By housing the bearing 3 inside the roller 4, sawdust or powder particles are prevented from entering the bearing 3 or the bearing seat, thereby preventing jamming that affects transmission. This can greatly reduce maintenance frequency and improve work efficiency and service life.

[0027] Furthermore, the upper part of the bearing seat 1 is provided with a support hole 14, which is nearly equal to the inner diameter of the bearing 3, ensuring accurate positioning and stable transmission between the rotating shaft 2 and the bearing 3, and reducing increased friction and wear caused by loosening or offset.

[0028] Furthermore, the bearing 1 includes a mounting base plate 11, a vertical support 12, and a top cover 13. The mounting base plate 11 is provided with a slot 112 and multiple fixing holes 111 for connecting the frame 5 to fix the whole. The top cover 13 has countersunk holes 132 on both sides of its upper side, and bolts are threaded into the countersunk holes 132. The top cover 13 is connected to the vertical support 12 by bolts. The inner side of the top cover 13 is provided with an upper arc groove 131, and the upper side of the vertical support 12 is provided with a lower arc groove 121. After the top cover 13 and the vertical support 12 are connected, a support hole 14 is formed, which not only facilitates installation and disassembly but also improves the flexibility and durability of the structure.

[0029] Furthermore, the opening of the lower arc-shaped groove 121 faces an oblique direction, and the opening of the upper arc-shaped groove 131 faces an oblique downward direction, providing a larger vertical installation space and facilitating the installation of the rotating shaft 2.

[0030] Furthermore, the lower part of the bearing seat 1 is provided with an oil inlet hole 15, which connects upward to the support hole 14. An oil guide groove is provided on the inner wall of the support hole 14, and the oil guide groove is connected to the oil inlet hole 15, forming a highly efficient lubrication system. When lubricating oil is injected through the oil inlet hole 15, it can be evenly distributed along the oil guide groove to the area of ​​the rotating shaft 2, providing continuous lubrication for the rotating shaft 2, effectively reducing friction and wear, extending service life, and improving durability by replacing the bearing 3 with the rotating shaft 2.

[0031] Furthermore, an installation groove 41 is provided on the inner wall of the end of the roller 4, and the outer wall of the bearing 3 abuts against the inner wall of the installation groove 41, which simplifies the installation process of the bearing 3 and improves the assembly efficiency.

[0032] Furthermore, the mounting groove 41 is provided with a mounting through hole 42 to facilitate the installation of the bearing 3. The mounting through hole 42 passes through the roller 4 and extends out of the end of the roller 4, which can improve its deformation capacity, facilitate the installation of the bearing 3, and improve assembly efficiency.

[0033] Furthermore, a locking groove 43 is provided on the outer wall of the end of the roller 4, and a locking ring for fastening the bolt is threaded on the locking groove 43, which also ensures a tight connection between the roller 4 and the rotating shaft 2 and prevents failures caused by loosening.

[0034] Specifically, in use, to improve dust and sawdust prevention and reduce costs, the bearing seat 1 is positioned between two rollers 4. The outer ends of the rollers 4 are rotatably mounted on the frame 5 via conventional bearing seats and a drive shaft 6 tightly connected to the rollers 4. The rotating shaft 2 is an axially symmetrically arranged short-rod stepped shaft. The diameter of the middle part of the rotating shaft 2 is larger than the diameters at both ends. The middle part of the rotating shaft 2 is clearance-fitted with the support hole 14. The end of the rotating shaft 2 is fitted with a bearing 3. The rotating shaft 2 is provided with an oil passage hole 21, a connecting hole 22, and an oil outlet hole 23. The oil passage hole 21 is located on the rotating shaft 2. The connecting hole 22 is located in the middle of the shaft 2 and perpendicular to the axis of the rotating shaft 2. It connects the oil passage hole 21 and the oil outlet hole 23. In this embodiment, the axis is through and sealed at both ends by a seal, which can be a threaded connection. The oil outlet hole 23 is located on the smaller diameter part on both sides of the rotating shaft 2. Specifically, the oil outlet hole 23 is located at the bearing 3 mounting part to provide lubrication for the bearing 3. This improves the stability, lubrication and maintenance convenience of the structure, reduces maintenance costs and improves work efficiency. It is especially suitable for the wood processing field.

Claims

1. A single-roller anti-clogging knife support structure, characterized in that, It includes a rotating shaft (2), a bearing seat (1), a bearing (3) and a roller (4). The rotating shaft (2) passes through the bearing seat (1) and the bearing (3). The bearing (3) is disposed inside the roller (4). The bearing seat (1) and the roller (4) are arranged adjacent to each other along the axial direction of the rotating shaft (2). The upper part of the bearing seat (1) is provided with a support hole (14), and the support hole (14) is matched with the inner diameter of the bearing (3). The lower part of the bearing seat (1) is provided with an oil inlet hole (15), which is connected to the support hole (14) upward. The bearing seat (1) includes a mounting base plate (11), a support (12) and a top cover (13). The top cover (13) is detachably connected to the support (12). The inner side of the top cover (13) is provided with an upper arc groove (131), and the upper side of the support (12) is provided with a lower arc groove (121). After the top cover (13) and the support (12) are connected, a support hole (14) is formed.

2. The single-roller anti-clogging knife support structure according to claim 1, characterized in that, The upper cover (13) has countersunk holes (132) on both sides of its upper side. Bolts are threaded into the countersunk holes (132), and the upper cover (13) is connected to the support (12) by bolts.

3. The single-roller anti-clogging knife support structure according to claim 1, characterized in that, The opening of the lower arc-shaped groove (121) faces the oblique direction, and the opening of the upper arc-shaped groove (131) faces the oblique downward direction.

4. The single-roller anti-clogging knife support structure according to claim 1, characterized in that, An oil guide groove is provided on the inner wall of the support hole (14), and the oil guide groove is connected to the oil inlet hole (15).

5. The single-roller anti-clogging knife support structure according to claim 1, characterized in that, An installation groove (41) is provided on the inner wall of the end of the roller (4), and the outer wall of the bearing (3) abuts against the inner wall of the installation groove (41).

6. The single-roller anti-clogging knife support structure according to claim 5, characterized in that, The mounting groove (41) is provided with a mounting through hole (42) to facilitate the installation of the bearing (3). The mounting through hole (42) passes through the roller (4) and extends out of the end of the roller (4).

7. The single-roller anti-clogging knife support structure according to claim 5 or 6, characterized in that, A locking groove (43) is provided on the outer wall of the end of the roller (4), and a locking ring for fastening the bolt is threaded onto the locking groove (43).

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