Cleaning device for roll shaft of roll screen

Abstract

The utility model relates to the technical field of roller screen cleaning, in particular to a cleaning device for a roller shaft of a roller screen. Comprising a connecting plate, fixing blocks are arranged at the two ends of the connecting plate respectively, the fixing blocks are connected with bearing seats at the two ends of a roller shaft of the roller screen, a scraping plate is fixed to the top of the connecting plate, the length of the scraping plate is consistent with the length of the roller shaft, and the scraping plate is located below the roller shaft. According to the technical scheme, the scraping plate is arranged below the roller shaft of the roller screen and fixed through the fixing blocks and the bearing seats at the two ends of the roller shaft, the scraping plate does not rotate along with the roller shaft, a certain gap exists between the roller shaft and the scraping plate, and when many materials adhere to the surface of the roller shaft, the materials make contact with the scraping plate, so that the materials are scraped. And the materials are scraped in the continuous rotation process of the roller shaft, so that material blockage is prevented, and normal operation of the roller screen is ensured.

Description

Technical Field

[0001] This utility model relates to the field of roller screen cleaning technology, and in particular to a cleaning device for roller screen roller shafts. Background Technology

[0002] Industrial operations often require the screening and classification of raw materials or products, which involves the application of roller screens. Due to their small amplitude, high efficiency, and ease of cleaning, roller screens are widely used for the fine processing of various solid or non-solid materials. Because of their multiple characteristics, roller screens are extensively used in food, pharmaceutical, chemical, machinery, metal powder, electronics, and ceramics industries. The screen surface of a roller screen consists of many parallel rollers with screen discs mounted on them in an alternating pattern. The rollers rotate via sprockets or gears, and their rotation direction is the same as the material flow direction.

[0003] During the operation of roller screens, the materials have high moisture and viscosity. During the rolling process, materials will adhere to the surface of the rollers, which will reduce the gap between the rollers and cause material blockage, thus affecting the screening of materials. Therefore, a device that can clean the materials adhering to the roller surface is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a cleaning device for the roller shaft of a roller screen. This cleaning device can clean the material adhering to the surface of the roller shaft, reduce material blockage, and ensure the normal operation of the roller screen.

[0005] This utility model provides a cleaning device for a roller screen shaft, including a connecting plate, with fixing blocks at both ends of the connecting plate, the fixing blocks being connected to bearing seats at both ends of the roller screen shaft, and a scraper fixed to the top of the connecting plate, the length of the scraper being the same as the length of the roller screen shaft, and the scraper being located below the roller screen shaft.

[0006] Furthermore, the central axis of the scraper and the central axis of the roller are located on the same vertical plane.

[0007] Furthermore, the fixing block is L-shaped, and two fixing blocks are symmetrically arranged. The vertical section of the fixing block is fixedly connected to the bearing seat of the roller shaft, and the horizontal section of the fixing block is connected to the connecting plate.

[0008] Furthermore, the horizontal section of the fixing block is provided with a first fixing hole, the connecting plate is provided with a connecting hole, a first fixing bolt is provided in the first fixing hole, and the first fixing bolt passes through the connecting hole and is connected to the nut.

[0009] Furthermore, the scraper is made of high manganese steel.

[0010] Furthermore, the distance between the edge of the free end of the scraper and the roller shaft is 0.2-0.5 mm.

[0011] Furthermore, the edge thickness of the free end of the scraper gradually decreases from bottom to top.

[0012] Furthermore, the horizontal section of the fixing block is provided with a slot, and the two opposite side walls of the slot are respectively provided with first fixing holes. The connecting plate is provided with a connecting hole, and the first fixing bolt passes through one of the first fixing holes, the connecting hole, and the other first fixing hole in sequence to connect with the nut.

[0013] Furthermore, the two opposite side walls of the card slot are respectively provided with sliding grooves, and the two opposite side walls of the connecting plate are respectively fixed with sliders, which are slidably connected in the sliding grooves.

[0014] Furthermore, the two opposite sidewalls of the card slot are provided with a plurality of the first fixing holes in the vertical direction.

[0015] In summary, compared with the prior art, this utility model has the following advantages:

[0016] The technical solution of this utility model is to set a scraper below the roller shaft of the roller screen and fix it to the bearing seats at both ends of the roller shaft by fixing blocks. The scraper does not rotate with the roller shaft, and there is a certain gap between the roller shaft and the scraper. When there is a lot of material attached to the surface of the roller shaft, the material comes into contact with the scraper and is scraped off during the continuous rotation of the roller shaft, preventing material blockage and ensuring the normal operation of the roller screen. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the installation of the cleaning device in Embodiment 1 of this utility model;

[0019] Figure 2 This is a schematic diagram of the cleaning device in Embodiment 2 of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the fixing block in Embodiment 2 of this utility model;

[0021] Figure 4 This is a schematic diagram of the cleaning device in Embodiment 3 of this utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the fixing block in Embodiment 3 of this utility model;

[0023] Figure 6 This is a right view of the fixing block in Embodiment 3 of this utility model.

[0024] Explanation of reference numerals in the attached drawings: 1-roller shaft; 2-bearing seat; 3-fixing block; 301-first fixing hole; 302-second fixing hole; 303-slot; 304-slide groove; 4-connecting plate; 5-scraper; 6-first fixing bolt; 7-second fixing bolt. Detailed Implementation

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

[0026] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Example 1

[0029] A cleaning device for the roller shaft of a roller screen, such as Figure 1 As shown, it includes a connecting plate 4, a scraper 5 fixed on the top of the connecting plate 4, and fixing blocks 3 at both ends of the connecting plate 4. The two fixing blocks 3 are symmetrically arranged and fixedly connected to the side walls of the bearing seats at both ends of the roller shaft.

[0030] The fixing block 3 is L-shaped, with a first fixing hole 301 in its horizontal section and a second fixing hole 302 in its vertical section. The horizontal section of the fixing block 3 is fixedly connected to the connecting plate 4 by a first fixing bolt 6, and the vertical section of the fixing block 3 is fixedly connected to the bearing seat sidewall of the roller shaft by a second fixing bolt 7. The connecting plate 4 has connecting holes at both ends, which are circular threaded holes. The first fixing bolt 6 passes through the first fixing hole 301 and the connecting hole and connects to a nut. The number of the first fixing hole 301, the second fixing hole 302, the first fixing bolt 6, and the second fixing bolt 7 can be set as needed.

[0031] The scraper 5 is located directly below the roller shaft. The roller shaft generally includes a central shaft and a roller body located outside the central shaft. The length of the scraper 5 is the same as the length of the roller body, that is, the length of the scraper 5 is required to be the same as the length of the working surface in contact with the roller shaft and the material.

[0032] The central axis of the scraper 5 and the central axis of the roller shaft are located on the same vertical plane. The gap between the scraper 5 and the roller shaft is 0.2-0.5mm to prevent the scraper 5 from scratching the roller shaft. In this embodiment, the first fixing hole 301 is an elongated hole, which can adjust the gap between the scraper 5 and the roller shaft as needed.

[0033] The scraper 5 is made of ZGMn13Cr2, a high-manganese steel. This high-manganese steel has high hardness, high strength, high toughness and good wear resistance. Its wear resistance is more than 10 times that of ordinary carbon steel, and it can be used for a long time in harsh working environments.

[0034] The bottom end of the scraper 5 is fixed to the connecting plate 4, which can be achieved by welding or bolting, ensuring that the connecting plate 4 and the scraper 5 are firmly fixed. The thickness of the free end edge of the scraper 5 gradually decreases from bottom to top. Alternatively, a steel plate of a certain thickness can be used as the connecting plate 4, with a groove set in the axial direction of the connecting plate 4, so that the bottom of the scraper 5 is inserted into the groove, and then welded or bolted.

[0035] The method of using the cleaning device provided in this embodiment is as follows: Figure 1As shown, the cleaning device is installed on each roller 1 of the roller screen. First, the two fixing blocks 3 are fixed to the lower part of the side wall of the bearing seat 2 at both ends of the roller 1 by the second fixing bolts 7. Then, the two ends of the connecting plate 4 are connected to the fixing blocks 3 by the first fixing bolts 6. The gap between the edge of the scraper 5 and the roller 1 is adjusted by the first fixing hole 301. Finally, the nuts are tightened.

[0036] The shape of the fixing block 3 can also be other shapes, as long as it can connect the connecting plate 4 to the bearing seats 2 at both ends of the roller 1.

[0037] The actual manufacturing process of the cleaning device provided in this embodiment is as follows: First, a connecting plate is made with dimensions of 1450×50×20mm. An alloy scraper is welded onto the connecting plate with copper solder. A hole with a diameter of 14mm is drilled at each end of the connecting plate. Then, two fixing blocks that can be installed on the roller bearing seat are made and installed on the lower inner side of the roller bearing seat.

[0038] Example 2

[0039] A cleaning device for the roller shaft of a roller screen, such as Figure 2 As shown, the technical solution in this embodiment is basically the same as that in embodiment 1, except that the structure of the fixing block 3 is different.

[0040] like Figure 3 As shown, the fixing block 3 in this embodiment is L-shaped, with a slot 303 on its horizontal section. The two ends of the connecting plate 4 are respectively inserted into the slots 303 of the two fixing blocks 3. The two opposite side walls of the slots 303 are respectively provided with first fixing holes 301, and the vertical section is provided with second fixing holes 302. The two ends of the connecting plate 4 are provided with connecting holes. The first fixing bolt 6 passes through one of the first fixing holes 301, the connecting hole, and the other first fixing hole 301 and is connected to the nut. The first fixing hole 301 is a strip hole, just like in embodiment 1.

[0041] A slot 303 is provided in the horizontal section of the fixed block 3, which can provide auxiliary support for the connecting plate 4 and make the connecting plate 4 more stable.

[0042] Example 3

[0043] A cleaning device for the roller shaft of a roller screen, such as Figure 4 As shown, the technical solution in this embodiment is basically the same as that in embodiment 2. The difference is that the first fixing hole 301 in this embodiment is a circular threaded hole, and the connecting plate 4 is slidably connected to the slot 303 on the fixing block 3.

[0044] like Figure 5 and Figure 6As shown, the horizontal section of the fixing block 3 is provided with a slot 303. Multiple first fixing holes 301 are provided vertically on the two opposite sidewalls of the slot 303. Two or more rows of first fixing holes 301 can be provided to make the connection between the connecting plate 4 and the fixing block 3 more stable. The two opposite sidewalls of the slot 303 are respectively provided with sliding grooves 304. The top and bottom of the sliding grooves 304 are not connected to the outside (i.e., the sliding grooves 304 are embedded in the sidewalls of the slot 303). Sliding blocks are fixed to the sidewalls at both ends of the connecting plate 4, and the sliding blocks are slidably connected in the sliding grooves 304. When it is necessary to adjust the gap between the scraper 5 and the roller shaft, the first fixing bolt 6 is unscrewed, and the connecting plate 4 is moved up or down. The sliding block on the connecting plate 4 slides along the sliding groove 304. After moving to the appropriate position, the first fixing bolt 6 is inserted into the first fixing hole 301 corresponding to the connecting hole and tightened with a nut.

[0045] In this embodiment, the fixing block 3 is slidably connected to the connecting plate 4, which makes it easier to adjust the position of the connecting plate 4. The first fixing hole 301 is a circular threaded hole, which makes the connection between the connecting plate 4 and the fixing block 3 more secure and more stable when the scraper 5 scrapes the material on the surface of the roller shaft.

[0046] The cleaning device provided by this utility model is suitable for roller screens with a circular cross-section and a smooth surface. It is fixedly installed below the roller screen and can continuously scrape off the accumulated material on the rotating roller screen, so that the gap between two adjacent roller screens is always maintained in accordance with the technical requirements, reducing material blockage, facilitating the collection of powder that meets the requirements, and ensuring the normal operation of the roller screen.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A cleaning device for the shaft of a roller screen, characterized in that, Includes a connecting plate (4), with fixing blocks (3) at both ends of the connecting plate (4), the fixing blocks (3) being connected to the bearing seats at both ends of the roller screen shaft, and a scraper (5) fixed on the top of the connecting plate (4), the length of the scraper (5) being the same as the length of the roller shaft, and the scraper (5) being located below the roller shaft.

2. The cleaning device according to claim 1, characterized in that, The central axis of the scraper (5) and the central axis of the roller are located on the same vertical plane.

3. The cleaning device according to claim 1, characterized in that, The fixing block (3) is L-shaped, and the two fixing blocks (3) are symmetrically arranged. The vertical section of the fixing block (3) is fixedly connected to the bearing seat of the roller shaft, and the horizontal section of the fixing block (3) is connected to the connecting plate (4).

4. The cleaning device according to claim 3, characterized in that, The horizontal section of the fixing block (3) is provided with a first fixing hole (301), and the connecting plate (4) is provided with a connecting hole. A first fixing bolt (6) is provided in the first fixing hole (301), and the first fixing bolt (6) passes through the connecting hole and is connected to the nut.

5. The cleaning device according to claim 1, characterized in that, The scraper (5) is made of high manganese steel.

6. The cleaning device according to claim 1, characterized in that, The distance between the edge of the free end of the scraper (5) and the roller shaft is 0.2-0.5 mm.

7. The cleaning device according to claim 1, characterized in that, The edge thickness of the free end of the scraper (5) gradually decreases from bottom to top.

8. The cleaning device according to claim 3, characterized in that, The horizontal section of the fixing block (3) is provided with a slot (303), and the two opposite side walls of the slot (303) are respectively provided with first fixing holes (301). The connecting plate (4) is provided with a connecting hole. The first fixing bolt (6) passes through one of the first fixing holes (301), the connecting hole, and the other first fixing hole (301) in sequence and is connected to the nut.

9. The cleaning device according to claim 8, characterized in that, The card slot (303) has two opposite side walls with sliding grooves (304) respectively, and the connecting plate (4) has two opposite side walls with sliders respectively, and the sliders are slidably connected in the sliding grooves (304).

10. The cleaning device according to claim 9, characterized in that, The two opposite sidewalls of the slot (303) are respectively provided with a plurality of the first fixing holes (301) in the vertical direction.

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