Self-filtering dustproof macromolecular polyethylene carrier roller

Abstract

The utility model provides a self-filtering dustproof macromolecule polyethylene carrier roller, which relates to the technical field of macromolecule polyethylene carrier rollers and comprises a carrier roller main body and a roller shaft, a sealing cover plate attached to the inner wall of the carrier roller main body is arranged on the outer side of the roller shaft, and a cleaning assembly attached to the outer side of the carrier roller main body is arranged on the outer side of the roller shaft. A limiting assembly is arranged on the inner side of the cleaning assembly, a bearing filtering assembly connected with the inner wall of the carrier roller body is arranged on the outer side of the roller shaft, and a pressing assembly located between the sealing cover plate and the bearing filtering assembly is arranged on the outer side of the roller shaft. According to the self-filtering dustproof macromolecule polyethylene carrier roller, abnormal abrasion of the conveying belt caused by dust accumulation is effectively avoided, the sealing pressing ring continuously presses the self-filtering dustproof sealing piece to be attached to the side faces of the bearing seat and the protective cover, the elastic pressing state is kept, external dust is doubly prevented from invading the interior of the bearing, and the overall sealing performance of the structure is improved.

Description

Technical Field

[0001] This utility model relates to the field of high molecular weight polyethylene idler technology, and in particular to a self-filtering and dustproof high molecular weight polyethylene idler. Background Technology

[0002] Idler rollers are an important component of belt conveyors and are widely used. The quality and lifespan of idler rollers mainly depend on the roller seals at both ends. The roller seals play a decisive role in important indicators such as rotational resistance, waterproofing, and dustproofing. Existing idler rollers mainly consist of roller shafts, roller bodies, bearing housings, and bearings. The service life of the bearings largely determines the service life of the idler rollers. Studies have shown that preventing dust, impurities, and moisture from entering the bearings and ensuring that the bearings always operate in a clean state are effective measures to extend the service life of idler roller bearings.

[0003] A search revealed Chinese Patent Publication No. CN214454506U, which discloses a self-filtering dustproof high-molecular polyethylene idler roller. This roller includes a high-molecular polyethylene roller body with a roller shaft at its center. Bearing seats are fixedly installed at both ends of the high-molecular polyethylene roller body, and bearings are fixedly installed within the bearing seats. While this technical solution protects the internal bearings by providing a sealing structure at both ends of the roller body and a dustproof filter, this structure still has gaps connecting to the dustproof filter, allowing dust and impurities to enter and affect its performance. Furthermore, the outer surface of the polyethylene idler roller easily accumulates debris and impurities, increasing frictional resistance and leading to accelerated wear. Therefore, a self-filtering dustproof high-molecular polyethylene idler roller is proposed to address these problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a self-filtering and dust-proof high-molecular polyethylene idler roller to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A self-filtering dustproof polyethylene idler roller includes an idler roller body and a roller shaft. A sealing cover plate is provided on the outer side of the roller shaft, which is in contact with the inner wall of the idler roller body. A cleaning assembly is provided on the outer side of the roller shaft, which is in contact with the outer side of the idler roller body. A limiting assembly is provided on the inner side of the cleaning assembly. A bearing filter assembly connected to the inner wall of the idler roller body is provided on the outer side of the roller shaft. A pressing assembly is provided on the outer side of the roller shaft, located between the sealing cover plate and the bearing filter assembly.

[0007] The cleaning assembly includes two connecting frames, which are fixedly installed on the outside of the roller shaft and located on both sides of the idler roller body. A mounting base is fixedly installed between the two connecting frames. A sliding groove is provided on the inner side of the mounting base. A brush seat extending to the outside of the sliding groove is movably installed inside the sliding groove. An embedding groove is provided on the side of the brush seat near the idler roller body. A cleaning brush extending to the outside and fitting against the side of the idler roller body is movably installed inside the embedding groove.

[0008] Preferably, a support base extending below the cleaning brush is fixedly installed at the bottom of the mounting base, and a collection box extending through to the outside of the support base is movably installed inside the support base.

[0009] Preferably, the limiting component includes a limiting strip, which is movably installed inside the mounting base and fits against the side of the brush holder, and a locking stud that is threadedly connected to the limiting strip is threaded onto the side of the mounting base.

[0010] Preferably, a rotating block is fixedly installed at one end of the locking stud, and the mounting base has a through hole that communicates with the sliding groove and is adapted to the limiting strip.

[0011] Preferably, the bearing filter assembly includes a bearing housing, which is fixedly connected to the inner wall of the roller body and fixedly connected to the roller shaft via a bearing. A protective cover extending to the inner side of the bearing housing is fixedly installed on the outer side of the roller shaft, and a self-filtering dustproof seal that fits into the protective cover is movably installed on the outer side of the roller shaft.

[0012] Preferably, the pressing assembly includes a fixed sleeve, which is fixedly installed on the outside of the roller shaft and located between the sealing cover plate and the self-filtering dustproof seal. An extension ring extending to the outside of the fixed sleeve is movably installed inside the fixed sleeve. A sealing pressure ring is fixedly installed on the side of the extension ring near the self-filtering dustproof seal. A spring is fixedly connected to the end of the extension ring located inside the fixed sleeve.

[0013] Preferably, the number of springs is several and they are distributed in a ring at equal intervals. The cross-section of the extension ring is designed with an L-shaped structure. The inside of the fixing sleeve is provided with a mounting groove that is compatible with the extension ring and the spring.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This self-filtering dustproof polyethylene idler roller, through the coordinated design of the cleaning component and the limiting component, allows the cleaning brush to adhere to the surface of the idler roller body when the roller rotates. Together with the bearing seat and the collection box, it realizes automatic cleaning and centralized collection of dust, effectively avoiding abnormal wear of the conveyor belt caused by dust accumulation. At the same time, it allows for quick disassembly, replacement and adjustment of the cleaning brush according to the amount of wear.

[0016] This self-filtering dustproof polyethylene roller, through the design of the pressing component, uses a ring array of springs to provide a constant preload, so that the sealing ring continuously presses the self-filtering dustproof seal against the side of the bearing seat and the protective cover, keeping it in an elastic compression state. This double-blocks external dust from entering the bearing and improves the overall sealing performance of the structure. Attached Figure Description

[0017] Figure 1 A schematic diagram of the main structure of a self-filtering dustproof high-molecular polyethylene idler roller provided by this utility model;

[0018] Figure 2 A three-dimensional view of the cleaning assembly structure of a self-filtering dustproof high-molecular polyethylene idler roller provided by this utility model;

[0019] Figure 3 A three-dimensional cross-sectional view of a cleaning component of a self-filtering dustproof high-molecular polyethylene idler roller provided by this utility model;

[0020] Figure 4 A three-dimensional view of the installation structure of the roller shaft and sealing cover plate of a self-filtering dustproof high-molecular polyethylene idler provided by this utility model;

[0021] Figure 5 A three-dimensional view of the disassembled structure of the bearing filter assembly of a self-filtering dustproof high-molecular polyethylene idler roller provided by this utility model;

[0022] Figure 6 A three-dimensional view of the pressing component structure of a self-filtering dustproof high-molecular polyethylene idler roller provided by this utility model;

[0023] Figure 7 A perspective view of the spring mounting structure of a self-filtering dustproof high-molecular polyethylene idler roller provided by this utility model.

[0024] Legend: 1. Idler roller body; 2. Roller shaft; 3. Sealing cover plate; 4. Cleaning assembly; 41. Connecting frame; 42. Mounting base; 43. Slide groove; 44. Brush seat; 45. Embedded groove; 46. Cleaning brush; 461. Bearing seat; 462. Collection box; 5. Limiting assembly; 51. Limiting strip; 511. Perforation; 52. Locking stud; 53. Rotating block; 6. Bearing filter assembly; 61. Bearing seat; 62. Protective cover; 63. Self-filtering dustproof seal; 7. Pressing assembly; 71. Fixing sleeve; 72. Extension ring; 721. Mounting groove; 73. Sealing pressure ring; 74. Spring. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0026] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be provided below with reference to relevant embodiments, and several embodiments of this utility model will be given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this utility model more thorough and complete.

[0027] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0029] Example

[0030] like Figures 1-7As shown, this utility model provides a technical solution: a self-filtering dustproof high-molecular polyethylene idler roller, including an idler roller body 1 and a roller shaft 2. A sealing cover plate 3, which fits against the inner wall of the idler roller body 1, is fixedly installed on the outer side of the roller shaft 2. A cleaning assembly 4, which fits against the outer side of the idler roller body 1, is fixedly installed on the outer side of the roller shaft 2. The cleaning assembly 4 includes two connecting frames 41, which are fixedly installed on the outer side of the roller shaft 2 and located on both sides of the idler roller body 1. A mounting bracket is fixedly installed between the two connecting frames 41. The mounting base 42, the connecting frame 41 and the mounting base 42 constitute a cleaning bracket. The inner side of the mounting base 42 is provided with a sliding groove 43. A brush seat 44 extending to the outside is movably installed inside the sliding groove 43. An embedding groove 45 is provided on the side of the brush seat 44 near the idler roller body 1. A cleaning brush 46 extending to the outside and fitting against the side of the idler roller body 1 is movably installed inside the embedding groove 45. When the idler roller is driven to rotate, the cleaning brush 46 fits against the surface of the idler roller and sweeps the adhering dust and impurities to the bottom.

[0031] The bottom of the mounting base 42 is fixedly installed with a support base 461 extending below the sweeping brush 46. A collection box 462 extending through the outside of the support base 461 is movably installed inside the support base 461. The debris generated during sweeping falls into the collection box 462 inside the support base 461 under the action of gravity for centralized cleaning.

[0032] A limiting component 5 is movably installed inside the cleaning assembly 4. The limiting component 5 includes a limiting strip 51, which is movably installed inside the mounting base 42 and fits against the side of the brush holder 44. A locking stud 52, which is threadedly connected to the limiting strip 51, is threadedly installed on the side of the mounting base 42. A rotating block 53 is fixedly installed at one end of the locking stud 52. A through hole 511, which communicates with the slide groove 43 and is adapted to the limiting strip 51, is opened inside the mounting base 42. The limiting strip 51 is movably installed inside the mounting base 42 and contacts the side of the brush holder 44 to limit its displacement. Rotating the rotating block 53 causes the locking stud 52 to exit the limiting strip 51, releasing the axial fixation on the brush holder 44. The limiting strip 51 is then pushed out laterally along the through hole 511 on the side of the mounting base 42, and the brush holder 44 can slide out along the slide groove 43, facilitating the replacement of the cleaning brush 46. The mechanical limiting and threaded locking provide dual protection, ensuring both quick disassembly and assembly and reliable operation.

[0033] A bearing filter assembly 6, which is connected to the inner wall of the roller body 1, is fixedly installed on the outer side of the roller shaft 2. The bearing filter assembly 6 includes a bearing seat 61, which is fixedly connected to the inner wall of the roller body 1 and fixedly connected to the roller shaft 2 through the bearing. The roller shaft 2 is fixedly connected to the bearing through the bearing to support the rotation of the roller. A protective cover 62 extending to the inner side of the bearing seat 61 is fixedly installed on the outer side of the roller shaft 2. A self-filtering dustproof seal 63 that fits against the protective cover 62 is movably installed on the outer side of the roller shaft 2. The self-filtering dustproof seal 63 filters the airflow entering the bearing cavity.

[0034] A pressing assembly 7 is fixedly installed on the outer side of the roller shaft 2, located between the sealing cover plate 3 and the bearing filter assembly 6. The pressing assembly 7 includes a fixing sleeve 71, which is fixedly installed on the outer side of the roller shaft 2 and located between the sealing cover plate 3 and the self-filtering dustproof seal 63. An extension ring 72 extending to its outer side is movably installed inside the fixing sleeve 71. A sealing pressure ring 73 is fixedly installed on the side of the extension ring 72 near the self-filtering dustproof seal 63. A fixed connection is fixedly installed at one end of the extension ring 72 inside the fixing sleeve 71. The springs 74 are numerous and evenly distributed in a ring. The extension ring 72 has an L-shaped cross-section. The fixed sleeve 71 has an installation groove 721 that matches the extension ring 72 and the springs 74. The preload of the springs 74 pushes the extension ring 72, so that the sealing ring 73 fits tightly against the side of the filter dustproof seal 63 and the protective cover 62. Even if the roller has axial displacement or vibration due to load changes, the elastic compensation mechanism of the springs 74 can still maintain the sealing surface pressure and prevent dust leakage due to gaps.

[0035] The working process of this utility model:

[0036] Step 1: When the idler roller is driven to rotate, the cleaning brush 46 adheres to the surface of the idler roller body 1. The impurities generated during cleaning fall into the bearing seat 461 under the action of gravity, and are finally collected by the collection box 462 and taken out for cleaning.

[0037] Step 2: By rotating the locking stud 52 of the rotating block 53 to loosen the connection with the limiting strip 51, the limiting strip 51 can be pushed out along the through hole 511. At this time, the brush seat 44 can be removed, so that the cleaning brush 46 can be disassembled and replaced.

[0038] Step 3: The self-filtering dustproof seal 63 structure performs dustproof filtration, while the spring 74 of the pressing component 7 pushes the sealing pressure ring 73 to continuously compress it, so that the self-filtering dustproof seal 63 fits tightly with the bearing seat 61 and the side of the protective cover 62, forming an airtight barrier to ensure that the sealing performance is not affected by the vibration or axial displacement of the idler roller.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A self-filtering dustproof high-molecular polyethylene idler roller, comprising an idler roller body (1) and a roller shaft (2), wherein a sealing cover plate (3) is provided on the outer side of the roller shaft (2) and fits against the inner wall of the idler roller body (1), characterized in that: A cleaning assembly (4) that fits against the outer side of the roller shaft (2) is provided on the outside of the roller body (1). A limiting assembly (5) is provided on the inner side of the cleaning assembly (4). A bearing filter assembly (6) that is connected to the inner wall of the roller body (1) is provided on the outside of the roller shaft (2). A pressing assembly (7) located between the sealing cover plate (3) and the bearing filter assembly (6) is provided on the outside of the roller shaft (2). The cleaning assembly (4) includes a connecting frame (41), two connecting frames (41) are fixedly installed on the outside of the roller shaft (2) and located on both sides of the idler body (1). A mounting base (42) is fixedly installed between the two connecting frames (41). A sliding groove (43) is provided on the inner side of the mounting base (42). A brush seat (44) extending to the outside is movably installed inside the sliding groove (43). An embedding groove (45) is provided on the side of the brush seat (44) near the idler body (1). A cleaning brush (46) extending to the outside and fitting against the side of the idler body (1) is movably installed inside the embedding groove (45).

2. The self-filtering dustproof high-molecular polyethylene idler roller according to claim 1, characterized in that: The bottom of the mounting base (42) is fixedly mounted with a support base (461) extending below the cleaning brush (46), and a collection box (462) extending through to the outside of the support base (461) is movably mounted inside the support base (461).

3. The self-filtering dustproof high-molecular polyethylene idler roller according to claim 1, characterized in that: The limiting component (5) includes a limiting strip (51), which is movably installed inside the mounting base (42) and fits against the side of the brush holder (44). The side of the mounting base (42) is threaded with a locking stud (52) that is threadedly connected to the limiting strip (51).

4. The self-filtering dustproof high-molecular polyethylene idler roller according to claim 3, characterized in that: One end of the locking stud (52) is fixedly installed with a rotating block (53), and the interior of the mounting base (42) is provided with a through hole (511) that communicates with the slide groove (43) and is adapted to the limiting strip (51).

5. The self-filtering dustproof high-molecular polyethylene idler roller according to claim 1, characterized in that: The bearing filter assembly (6) includes a bearing housing (61), which is fixedly connected to the inner wall of the roller body (1) and fixedly connected to the roller shaft (2) through the bearing. A protective cover (62) extending to the inner side of the bearing housing (61) is fixedly installed on the outer side of the roller shaft (2), and a self-filtering dustproof seal (63) that fits against the protective cover (62) is movably installed on the outer side of the roller shaft (2).

6. The self-filtering dustproof polyethylene idler roller according to claim 5, characterized in that: The pressing assembly (7) includes a fixed sleeve (71), which is fixedly installed on the outside of the roller (2) and located between the sealing cover plate (3) and the self-filtering dustproof seal (63). An extension ring (72) extending to the outside of the fixed sleeve (71) is movably installed inside the fixed sleeve (71). A sealing pressure ring (73) is fixedly installed on the side of the extension ring (72) near the self-filtering dustproof seal (63). A spring (74) is fixedly connected to one end of the extension ring (72) inside the fixed sleeve (71).

7. The self-filtering dustproof high-molecular polyethylene idler roller according to claim 6, characterized in that: The number of springs (74) is several and they are distributed in a ring at equal intervals. The cross-section of the extension ring (72) is designed with an L-shaped structure. The inside of the fixing sleeve (71) is provided with a mounting groove (721) that is compatible with the extension ring (72) and the springs (74).

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