Self-cleaning rolling blade

Abstract

The utility model relates to rolling scraper technical field, especially in kind of self -cleaning rolling scraper, including scraper body, the bottom of scraper body is equipped with mounting hole, the self -cleaning rolling scraper still includes the walking wheel rotatable installation in mounting hole, the hole wall of mounting hole forms the storage cavity between walking wheel between the part on the midline upside of walking wheel, the minimum distance of the hole wall of mounting hole on the side away from the advancing direction of scraper body and walking wheel is h1, the minimum distance of the hole wall of mounting hole on the side towards the advancing direction of scraper body and walking wheel is h2, h1 is less than h2, the utility model discloses through the structure relation of optimization setting storage cavity and walking wheel and mounting hole hole wall, can be convenient for automatic cleaning the coal that walking wheel brought into mounting hole, effectively solved the problem existing in the prior art.

Description

Technical Field

[0001] This utility model relates to the field of rolling scraper technology, and in particular to a self-cleaning rolling scraper. Background Technology

[0002] Scrapers are essential conveying tools in underground coal mining. Conventional scrapers slide and rub against the chute wall during coal transport, which not only results in high scraper operating resistance but also significant frictional wear between the scraper and the process, increasing operation and maintenance costs.

[0003] To address this issue, some existing technologies incorporate a rolling structure at the bottom of the scraper, converting the sliding friction movement between the scraper and the chute into rolling movement. For example, patent CN218706210U discloses a multi-bearing scraper that installs rolling bearings at the bottom of the scraper, allowing the bearings to directly contact the chute. However, because the scraper operates in a dusty and water-spraying environment while conveying coal, the outer wall of the bearing can easily carry some coal slurry into the opening during rotation. This slurry, under the influence of friction and heat generated by the bearing's rotation, caking and clogging, increases the rolling resistance of the bearing and affects the use of the rolling scraper. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a self-cleaning rolling scraper. By optimizing the structural relationship between the storage chamber, the traveling wheel, and the mounting hole wall, it facilitates the automatic cleaning of coal brought into the mounting hole by the traveling wheel, effectively solving the problems existing in the prior art.

[0005] To address the aforementioned problems, this utility model provides a self-cleaning rolling scraper, comprising a scraper body with a mounting hole at its bottom. The self-cleaning rolling scraper also includes a traveling wheel rotatably mounted in the mounting hole. The portion of the mounting hole wall above the centerline of the traveling wheel forms a material storage cavity between the traveling wheel and the mounting hole. The minimum distance between the mounting hole wall on the side away from the traveling direction of the scraper body and the traveling wheel is h1, and the minimum distance between the mounting hole wall on the side facing the traveling direction of the scraper body and the traveling wheel is h2, where h1 is less than h2.

[0006] Furthermore, the self-cleaning rolling scraper also includes a scraping strip installed on the side of the mounting hole away from the direction of travel of the scraper body.

[0007] Furthermore, the rotation axis of the scraper and the traveling wheel are set on the same horizontal plane, and the distance between the mounting hole on the lower side of the scraper and the traveling wheel gradually increases from top to bottom.

[0008] Furthermore, the scraper is configured as an arc-shaped scraper.

[0009] Furthermore, the material storage chamber forms a guide section at the end of the walking wheel centerline away from the scraper body's traveling direction and a discharge section at the end of the walking wheel centerline facing the scraper body's traveling direction; the height of the top wall of the discharge section is higher than the height of the top wall of the guide section.

[0010] Furthermore, the distance between the top wall of the guide section and the traveling wheel gradually increases along the direction of travel toward the scraper body.

[0011] Furthermore, the surface of the walking wheel shown is provided with a material guide notch.

[0012] Furthermore, the mounting hole has an arc-shaped guide wall on the side facing the traveling direction of the scraper body.

[0013] The beneficial effect of this utility model is that by optimizing the structural relationship between the storage chamber and the traveling wheel and the wall of the mounting hole, it is possible to automatically clean up the coal brought into the mounting hole by the traveling wheel, effectively solving the problems existing in the prior art. Attached Figure Description

[0014] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a structural schematic diagram showing the direction of scraper movement in one embodiment of the present invention.

[0015] Figure 2 for Figure 1 The diagram shows the structural layout of the walking wheel position in the embodiment shown.

[0016] Figure 3 for Figure 1 The diagram shown is a top view of the structure at the position of the walking wheels in the embodiment shown.

[0017] Figure 4 for Figure 3 A schematic diagram of a partial cross-sectional view along the AA direction.

[0018] The components include: 1. scraper body; 2. mounting hole; 3. traveling wheel; 4. arc-shaped guide wall; 5. scraper strip; 6. guide notch; 7. storage cavity; 701. guide section; 702. discharge section. Detailed Implementation

[0019] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings.

[0020] It should be noted that many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0021] Furthermore, it should be understood in the description of this utility model that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral unit; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. However, specifying a direct connection indicates that the two main bodies at the connection point are not connected by an intermediate structure, but are simply connected to form a whole through a connecting structure. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0023] In this utility model, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0024] In this utility model, such as Figures 1 to 4As shown, a self-cleaning rolling scraper is provided. The scraper body 1 has a mounting hole 2 at its bottom. The rolling scraper also includes a traveling wheel 3 rotatably mounted in the mounting hole 2. The portion of the wall of the mounting hole 2 above the centerline of the traveling wheel 3 forms a material storage cavity 7 between the traveling wheel 3 and the wall of the mounting hole 2. The minimum distance between the wall of the mounting hole 2 on the side away from the traveling direction of the scraper body 1 and the traveling wheel 3 is h1, and the minimum distance between the wall of the mounting hole 2 on the side facing the traveling direction of the scraper body 1 and the traveling wheel 3 is h2, where h1 is less than h2.

[0025] The self-cleaning rolling scraper of this invention is shown in the figure. As shown, the minimum distance h1 between the right side of the traveling wheel 3 and the wall of the mounting hole 2 is relatively small, which reduces the amount of coal adhering to the surface of the traveling wheel 3 when it enters the mounting hole 2. By making the minimum distance between the left side of the traveling wheel 3 and the wall of the mounting hole 2 relatively large, the traveling wheel 3 can carry the coal out of the mounting hole 2 when it rotates out of the mounting hole 2. This invention provides a storage chamber 7 on the upper side of the traveling wheel 3, which increases the space for coal to move on the upper side of the traveling wheel 3. The vibration generated by the scraper movement can promote the movement of coal in the storage space, thereby increasing the fluidity of the coal and promoting the coal to be carried out by the roller. It can also prevent the coal slurry from being compacted and clumped due to friction heating during the rotation of the traveling wheel, thus making the traveling wheel 3 roll more smoothly.

[0026] It is easy to see that the rolling scraper of this utility model, by optimizing the structural relationship between the storage chamber and the traveling wheel and the wall of the mounting hole, can facilitate the automatic cleaning of coal brought into the mounting hole by the traveling wheel, effectively solving the problems existing in the prior art.

[0027] In a preferred embodiment, specifically regarding the structure of this invention, the self-cleaning rolling scraper further includes a scraping strip 5 installed on the side of the mounting hole 2 away from the traveling direction of the scraper body 1. As shown in the figure, the scraping strip 5 is positioned on the horizontal plane where the center of the traveling wheel 3 is located. Thus, h1 can be controlled by the scraping strip 5. When the traveling wheel 3 rotates into the mounting hole 2, the scraping strip 5 can scrape off the coal adhering to the surface of the traveling wheel 3, thereby reducing the amount of coal entering the mounting hole 2.

[0028] In a preferred embodiment, specifically regarding the structure of this invention, the rotation axes of the scraper bar 5 and the traveling wheel 3 are arranged on the same horizontal plane, and the distance between the mounting hole 2 on the lower side of the scraper bar 5 and the traveling wheel 3 gradually increases from top to bottom. As shown in the figure, the portion of the mounting hole 2 on the lower side of the scraper bar 5 extends vertically, thereby making the distance between the traveling wheel 3 and the mounting hole 2 gradually increase from top to bottom in this portion, facilitating the discharge of coal scraped off by the scraper bar 5.

[0029] In a preferred embodiment, more specifically regarding the structure of this utility model, the scraper strip 5 is configured as an arc-shaped scraper strip.

[0030] In a preferred embodiment, more specifically regarding the structure of this utility model, the material storage cavity 7 forms a guide section 701 at a section of the centerline of the traveling wheel 3 away from the traveling direction of the scraper body 1, and a discharge section 702 is formed at the end of the centerline of the traveling wheel 3 facing the traveling direction of the scraper body 1; the height of the top wall of the discharge section 702 is higher than the height of the top wall of the guide section 701.

[0031] In the illustrated embodiment, by setting the height of the discharge section 702 relatively high, the movement space of the storage chamber 7 can be increased on the side where the traveling wheel 3 rotates out of the mounting hole 2. This results in better loosening of the coal in the storage chamber, facilitating its removal when the traveling wheel 3 rotates out of the mounting hole 2. By setting the height of the guide section 701 relatively low, the amount of coal stored in the guide section 701 can be reduced, promoting the movement of the coal to the discharge section 702 side when the traveling wheel 3 rotates, thereby facilitating the discharge of coal from the discharge section 702.

[0032] In the illustrated embodiment, the distance between the top wall of the guide section 701 and the traveling wheel 3 gradually increases along the direction of travel toward the scraper body 1.

[0033] As shown in the figure, the top wall of the discharge section is set in an arc shape, which can reduce the dead corners of the guide section 701 and promote the movement of coal towards the discharge section 702 when the traveling wheel 3 rotates.

[0034] In the illustrated embodiment, more specifically, the surface of the traveling wheel 3 is provided with a material guide notch 6. As shown in the figure, by providing the material guide notch, the traveling wheel 3 can promote the flow of coal slime in the mounting hole 2 when it rotates within the mounting hole 2.

[0035] In the illustrated embodiment, more specifically, the mounting hole 2 has an arc-shaped guide wall 4 on the side facing the traveling direction of the scraper body 1. As shown, the arc-shaped guide wall 4 is approximately coaxial with the traveling wheel 3. This allows the value of h2 to be controlled by the arc-shaped guide wall 4, and also increases the distance between the traveling wheel 3 on the upper side of the center line and the wall of the mounting hole 2 (the position of the arc-shaped guide wall 4). During the process of the traveling wheel 3 rotating out of the mounting hole 2 and guiding the coal of the discharge section 702 to be discharged outward, the compaction effect of the traveling wheel 3 on the coal slime between the upper side of the center line and the wall of the mounting hole 2 is reduced.

[0036] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to interchangeably. Each embodiment focuses on describing the differences from other embodiments. In particular, the system embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions in the method embodiments.

[0037] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A self-cleaning rolling scraper, comprising a scraper body, characterized in that, The bottom of the scraper body is provided with a mounting hole, and the self-cleaning rolling scraper also includes a walking wheel that is rotatably mounted in the mounting hole. The portion of the wall of the mounting hole above the center line of the walking wheel forms a material storage cavity between the walking wheel and the walking wheel. The minimum distance between the mounting hole wall on the side away from the scraper body's traveling direction and the traveling wheel is h1, and the minimum distance between the mounting hole wall on the side facing the scraper body's traveling direction and the traveling wheel is h2, where h1 is less than h2.

2. The self-cleaning rolling scraper according to claim 1, characterized in that, The self-cleaning rolling scraper also includes a scraping strip installed on the side of the mounting hole away from the direction of travel of the scraper body.

3. A self-cleaning rolling scraper according to claim 2, characterized in that, The rotation axis of the scraper and the traveling wheel are set on the same horizontal plane, and the distance between the mounting hole on the lower side of the scraper and the traveling wheel gradually increases from top to bottom.

4. A self-cleaning rolling scraper according to claim 2, characterized in that, The scraper is configured as an arc-shaped scraper.

5. A self-cleaning rolling scraper according to claim 4, characterized in that, The material storage chamber forms a guiding section at the end of the centerline of the walking wheel away from the direction of travel of the scraper body, and a discharge section at the end of the centerline of the walking wheel facing the direction of travel of the scraper body; The height of the top wall of the discharge section is higher than the height of the top wall of the guide section.

6. A self-cleaning rolling scraper according to claim 5, characterized in that, The distance between the top wall of the guide section and the traveling wheel gradually increases along the direction of travel toward the scraper body.

7. A self-cleaning rolling scraper according to claim 1, characterized in that, The walking wheel shown has a material guide notch on its surface.

8. A self-cleaning rolling scraper according to claim 1, characterized in that, The mounting hole has an arc-shaped guide wall on the side facing the direction of travel of the scraper body.

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