Floating scraper and belt cleaning device

Abstract

The utility model provides a floating scraper and a belt cleaning device, the floating scraper comprises a scraper, a knife rest and a fixed seat, the scraper is fixedly installed on the knife rest, and the knife rest is connected with the fixed seat through an elastic element; the two elastic elements are located at the two ends of the scraper respectively, the whole scraper can float up and down, impact force generated when the scraper abuts against a belt is buffered, and damage of the scraper to the belt is reduced. The left and right ends of the scraper can float up and down, so that the scraper can be better attached to the surface of the belt, and the belt cleaning effect is improved.

Description

Technical Field

[0001] This application relates to the technical field of belt cleaning, and particularly to a floating scraper and a belt cleaning device. Background Art

[0002] During the transportation of bulk materials by a belt conveyor, there will be material sticking to the return belt surface of the belt conveyor, which is simply referred to as return belt material. The return belt material first affects the service life of the redirecting roller, causing the roller surface to wear relatively quickly. If the return belt material sticks to the roller surface and accumulates more and more, it will cause the conveyor belt to deviate, increase the wear of the conveyor belt, and lead to serious consequences. The return belt material will also stick to the lower idlers in the empty running section, accelerating the wear of the conveyor belt. The material will also enter the idler housing, thereby increasing the radial load and axial load on the bearing seat and causing the bearing to wear quickly. In addition, when the material stuck to the idler housing dries, it will interact with the belt, causing dust. The vibration of the return belt material sticking to the belt when passing through each idler will also cause dust. Therefore, belt cleaning has increasingly become an indispensable part of the belt conveyor system, and the cleaning requirements for the belt are also getting higher and higher.

[0003] Generally, polyurethane scrapers, alloy scrapers or ceramic scrapers are used in belt cleaners to scrape off the materials adhered to the belt surface. However, since the scraper is generally relatively hard and needs to be close to the belt to achieve a better cleaning effect, if the shock absorption effect of the scraper is not good, it is easy to damage the belt, thereby shortening the service life of the belt. Summary of the Invention

[0004] This application provides a floating scraper and a belt cleaning device, which solve the problems that the scraper of the existing belt cleaner is easy to damage the belt, etc.

[0005] In the first aspect of this application, a floating scraper is provided, which includes a scraper, a tool holder and a fixed seat. The scraper is fixedly installed on the tool holder, and the tool holder is connected to the fixed seat through an elastic element.

[0006] In the technical solution provided by this application, by connecting an elastic element between the tool holder and the fixed seat, when the scraper abuts against the belt surface, the elastic element can play a certain buffering and shock absorption role, reducing the damage caused by the scraper to the belt surface, thereby prolonging the service life of the belt.

[0007] In some embodiments, there are two elastic elements, which are respectively located at both ends of the scraper. It can not only realize the overall up and down floating of the scraper, buffer the impact force when the scraper abuts against the belt, and reduce the damage of the scraper to the belt, but also realize the up and down floating of the left and right ends of the scraper, enabling the scraper to better fit the belt surface and improving the belt cleaning effect.

[0008] In some embodiments, the tool rest is a U-shaped frame. The distance between the opposite side walls of the U-shaped frame matches the thickness of the fixed seat. The fixed seat and the U-shaped frame are hinged by a pin shaft, enhancing the stability of the connection between the fixed seat and the tool rest.

[0009] In some embodiments, through holes for installing the pin shaft are provided oppositely on the two side walls of the U-shaped frame. A waist-shaped hole matching the through hole is provided on the side surface of the fixed seat. The length direction of the waist-shaped hole is the same as the telescopic direction of the elastic element. By providing a waist-shaped hole on the side surface of the fixed seat to cooperate with the through hole on the side surface of the U-shaped frame, on the one hand, the U-shaped frame can rotate around the pin shaft, realizing the left and right floating of the scraper, enabling the two ends of the scraper to automatically adapt to the pits on the belt surface and better fit the belt surface; on the other hand, the U-shaped frame can also slide up and down along the length direction of the waist-shaped hole, realizing the overall up and down floating of the scraper and meeting the vibration damping requirements of the scraper.

[0010] In some embodiments, a positioning hole for installing the elastic element is provided on the top surface of the fixed seat. The inner diameter of the positioning hole matches the outer diameter of the elastic element, facilitating the installation of the elastic element.

[0011] In some embodiments, the bottom end of the positioning hole penetrates the bottom surface of the fixed seat, and an adjusting screw is installed at the bottom of the positioning hole. By screwing in or out the adjusting screw, the depth of the positioning hole can be adjusted, thereby adjusting the pressing force of the elastic element on the tool rest and further adjusting the pressing force of the scraper on the belt.

[0012] In some embodiments, the cutting edge of the scraper is an arc surface that fits the belt surface, which is more likely to fit and press the belt, improving the belt cleaning effect.

[0013] The second aspect of the present application provides a belt cleaning device, including a cross beam fixedly installed below the return belt. A plurality of the above-mentioned floating scrapers are fixedly installed on the top of the cross beam. The adjacent floating scrapers are arranged at intervals, and the length direction of the scraper is perpendicular to the transmission direction of the return belt.

[0014] In some embodiments, there are multiple cross beams. The multiple cross beams are arranged at intervals along the transmission direction of the return belt, and the multiple floating scrapers on the adjacent cross beams are arranged staggeredly, forming a floating scraper array arranged in multiple rows, at intervals, and staggeredly, constituting multiple mutually complementary cleaning points on the belt surface to achieve full coverage cleaning of the belt surface and improve the belt cleaning effect.

[0015] The above description is only an overview of the technical solution of the present application. In order to be able to understand the technical means of the present application more clearly, it can be implemented according to the content of the specification. And in order to make the above and other purposes, features and advantages of the present application more obvious and understandable, the specific embodiments of the present application are specifically listed below. Description of the Drawings

[0016] In this application, the attached drawings are used to illustrate the preferred embodiments, facilitating the clear understanding of various other advantages and benefits by those of ordinary skill in the art, and should not be considered as a limitation to this application. Moreover, in all the attached drawings, the same reference numerals are used to represent the same or similar components.

[0017] Figure 1 It is a schematic three-dimensional structure diagram of a floating scraper in an embodiment of this application;

[0018] Figure 2 It is an exploded view of a floating scraper in an embodiment of this application;

[0019] Figure 3 It is a schematic cross-sectional structure diagram of a floating scraper in an embodiment of this application;

[0020] Figure 4 It is a schematic structure diagram of a belt cleaning device in an embodiment of this application;

[0021] Reference numerals: 1, scraper; 2, tool holder; 3, fixed seat; 4, elastic element; 5, pin shaft; 6, through hole; 7, waist-shaped hole; 8, positioning hole; 9, adjusting screw; 10, cross beam. Detailed implementation manners

[0022] Next, the technical solutions in the embodiments of this application will be clearly and completely described in conjunction with specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of this application.

[0023] Referring to "embodiments" in this context means that the specific features, structures, or characteristics described in conjunction with the embodiments may be included in at least one embodiment of this application. The phrase appears at various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0024] In the description of the embodiments of this application, technical terms such as "first" and "second" are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity, specific order, or primary-secondary relationship of the indicated technical features. In the description of the embodiments of this application, "a plurality of" means two or more (including two), unless otherwise clearly and specifically defined.

[0025] In the description of the embodiments of the present application, the term "and / or" is merely a description of the association relationship between associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this article generally represents an "or" relationship between the associated objects before and after.

[0026] In the description of the embodiments of the present application, for technical terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings. It is only for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the embodiments of the present application.

[0027] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can also be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific situations.

[0028] Please refer to Figures 1-3 , a floating scraper is provided in the first aspect of the embodiments of the present application, including a scraper 1, a tool holder 2 and a fixed seat 3. The scraper 1 is fixedly installed on the tool holder 2, and the tool holder 2 is connected to the fixed seat 3 through an elastic element 4.

[0029] In the technical solution provided by the present application, by connecting the elastic element 4 between the tool holder 2 and the fixed seat 3, when the scraper 1 abuts against the surface of the belt, the elastic element 4 can play a certain buffering and vibration reduction role, reducing the damage caused by the scraper 1 to the surface of the belt, thereby extending the service life of the belt.

[0030] Please continue to refer to Figure 2 , Figure 3 , in some embodiments, there are two elastic elements 4, which are respectively located at both ends of the scraper 1. It can not only realize the overall up and down floating of the scraper 1, buffer the impact force when the scraper 1 abuts against the belt, and reduce the damage of the scraper 1 to the belt; but also realize the up and down floating of the left and right ends of the scraper 1, so that the scraper 1 can better fit the surface of the belt and improve the belt cleaning effect.

[0031] In a specific implementation process, the elastic element 4 can be a spring or other elements with elastic telescopic properties.

[0032] Please continue to refer to Figure 1 、 Figure 2 , in some embodiments, the tool rest 2 is a U-shaped frame, the distance between the opposite side walls of the U-shaped frame matches the thickness of the fixed seat 3, and the fixed seat 3 is hinged to the U-shaped frame through a pin shaft 5, improving the stability of the connection between the fixed seat 3 and the tool rest 2.

[0033] Please continue to refer to Figure 2 、 Figure 3 , in some embodiments, through holes 6 for installing the pin shaft 5 are oppositely arranged on the two side walls of the U-shaped frame, a waist-shaped hole 7 matching the through hole 6 is arranged on the side surface of the fixed seat 3, the length direction of the waist-shaped hole 7 is the same as the telescopic direction of the elastic element 4, the two adjacent walls of the U-shaped frame are clamped outside the fixed seat 3, and after the pin shaft 5 passes through the circular through hole 6 and the waist-shaped hole 7, it is locked by a nut; by arranging the waist-shaped hole 7 on the side surface of the fixed seat 3 to cooperate with the through hole 6 on the side surface of the U-shaped frame, on the one hand, the U-shaped frame can rotate around the pin shaft 5 to realize the left and right floating of the scraping knife 1, so that the two ends of the scraping knife 1 can automatically adapt to the pits on the belt surface and better fit the belt surface; on the other hand, the U-shaped frame can also slide up and down along the length direction of the waist-shaped hole 7 to realize the overall up and down floating of the scraping knife 1, meeting the vibration reduction requirements of the scraping knife 1.

[0034] In a specific implementation manner, a waist-shaped hole 7 can also be arranged on the side wall of the U-shaped frame, and a circular through hole 6 is arranged on the side surface of the fixed seat 3.

[0035] Please continue to refer to Figure 3 , in some embodiments, a positioning hole 8 for installing the elastic element 4 is arranged on the top surface of the fixed seat 3, and the inner diameter of the positioning hole 8 matches the outer diameter of the spring, facilitating the installation of the elastic element 4.

[0036] Please continue to refer to Figure 2 、 Figure 3 , in some embodiments, the bottom end of the positioning hole 8 penetrates through the bottom surface of the fixed seat 3, and an adjusting screw 9 is installed at the bottom of the positioning hole 8. By screwing in or out the adjusting screw 9, the depth of the positioning hole 8 can be adjusted, the degree of compression of the spring can be adjusted, thereby adjusting the pressing force of the spring on the tool rest 2, and further adjusting the pressing force of the scraping knife 1 on the belt.

[0037] Please continue to refer to Figure 3 , in some embodiments, the cutting edge of the scraping knife 1 is an arc surface that fits the belt surface, the length of the scraping knife 1 does not exceed 160 mm, and the cutting edge is an arc with a higher middle and lower ends, which is more likely to fit and press the belt, improving the belt cleaning effect.

[0038] Please refer toFigure 4 , in the second aspect of the embodiments of the present application, a belt cleaning device is provided, which includes a cross beam 10 fixedly installed below the return belt. A plurality of the floating scrapers are fixedly installed on the top of the cross beam 10. The adjacent floating scrapers are arranged at intervals, and the length direction of the scraper 1 is perpendicular to the transmission direction of the return belt.

[0039] Please continue to refer to Figure 4 , in some embodiments, there are multiple cross beams 10. The multiple cross beams 10 are arranged at intervals along the transmission direction of the return belt, and the multiple floating scrapers on the adjacent cross beams 10 are arranged staggeredly, forming a floating scraper array arranged in multiple rows, at intervals, and staggeredly, constituting multiple cleaning points that complement each other on the belt surface, realizing full coverage cleaning of the belt surface and improving the effect of belt cleaning.

[0040] In a specific implementation process, a through adjustment hole can be opened on the top surface of the cross beam 10 corresponding to the position of the adjustment screw 9, which is convenient for adjusting the state of the spring by screwing the adjustment screw 9 with a screwdriver.

[0041] When the floating scraper of this embodiment is in use, due to the action of the two springs and the pin shaft 5, the whole scraper 1 can be floated up and down to buffer the impact force when the scraper 1 abuts against the belt, reducing the damage of the scraper 1 to the belt; it can also realize the up and down floating of the left and right ends of the scraper 1 to adapt to the transverse pitted surface of the belt, reducing the gap between the scraper 1 and the belt and improving the cleaning effect.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be covered within the scope of the claims and the description of the present application. In particular, as long as there is no conflict, the various technical features mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A floating scraper, characterized in that: The scraper (1) comprises a scraper (1), a blade holder (2) and a fixed seat (3); the scraper (1) is fixedly mounted on the blade holder (2); the blade holder (2) and the fixed seat (3) are connected via an elastic element (4); two elastic elements (4) are provided, respectively located at two ends of the scraper (1); the blade edge of the scraper (1) is an arc surface that fits the surface of the belt; The tool holder (2) is a U-shaped frame, the spacing between the two opposite side walls of the U-shaped frame matches the thickness of the fixing seat (3), and the fixing seat (3) and the U-shaped frame are hinged via a pin shaft (5); the two side walls of the U-shaped frame are oppositely provided with through holes (6) for installing the pin shaft (5), and the side surface of the fixing seat (3) is provided with a waist-shaped hole (7) matching the through hole (6), and the length direction of the waist-shaped hole (7) is the same as the telescopic direction of the elastic element (4).

2. A floating scraper according to claim 1, characterized in that: A positioning hole (8) for mounting the elastic element (4) is provided on the top surface of the fixing seat (3), and the inner diameter of the positioning hole (8) matches the outer diameter of the elastic element (4).

3. A floating scraper according to claim 2, characterized in that: The bottom end of the positioning hole (8) passes through the bottom surface of the fixing seat (3), and an adjusting screw (9) is installed at the bottom of the positioning hole (8).

4. A belt cleaning device, characterized in that: It comprises a crossbeam (10) fixedly installed under the return belt, and a plurality of floating scrapers as described in any one of claims 1 to 3 are fixedly installed on the top of the crossbeam (10), adjacent floating scrapers are arranged at intervals, and the length direction of the scraper (1) is perpendicular to the transmission direction of the return belt.

5. A belt cleaning device according to claim 4, characterized in that: A plurality of the crossbeams (10) are provided, and the plurality of crossbeams (10) are arranged at intervals along the transmission direction of the return belt, and a plurality of floating scrapers on adjacent crossbeams (10) are arranged in a staggered manner.

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