A rolling blade

Abstract

The utility model relates to rolling scraper technical field, especially rolling scraper, including scraper body, the bottom of scraper body is equipped with mounting hole, the rolling scraper still includes the walking wheel rotatable installation in mounting hole, the scraper body is set up with the exhaust hole of mounting hole intercommunication in top surface, the scraper body still includes the cover that can open and close sets up in exhaust hole.

Description

Technical Field

[0001] This utility model relates to the field of rolling scraper technology, and in particular to a 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 rolling scraper, which effectively solves the existing problems by optimizing the setting of the coal discharge hole and the cover plate.

[0005] To solve the above problems, this utility model provides a rolling scraper, including a scraper body, a mounting hole at the bottom of the scraper body, a traveling wheel rotatably mounted in the mounting hole, a coal discharge hole communicating with the mounting hole on the top surface of the scraper body, and a cover plate that can be opened and closed in the coal discharge hole.

[0006] Furthermore, one end of the cover plate is rotatably connected to the side of the coal discharge hole facing the direction of travel of the scraper body.

[0007] Furthermore, the cover plate is connected to the scraper body via a flexible connector.

[0008] Furthermore, the flexible connector is configured as a rubber connector or a wear-resistant cloth connector.

[0009] Furthermore, the top surface of the scraper body is provided with a pressure groove, and a pressure block is connected in the pressure groove by screws. The pressure block clamps and fixes the flexible connector to the bottom wall of the pressure groove.

[0010] Furthermore, the cross-sectional dimensions of the coal discharge hole gradually increase from bottom to top.

[0011] Furthermore, the rolling scraper is provided with a mounting block, the mounting block is provided with a mounting hole, and the scraper body is provided with a mounting groove for the mounting block to be fitted in; the mounting block is provided with a protrusion on the upper edge of the mounting hole, and the protrusion extends into the coal discharge hole in the vertical projection.

[0012] Furthermore, the vertical projection of the coal discharge hole is located on the side of the mounting hole on the centerline of the traveling wheel facing the direction of travel of the scraper body.

[0013] Furthermore, the distance between the top wall of the mounting hole and the traveling wheel gradually increases along the direction of travel toward the scraper body and extends to the lower side of the coal discharge hole shown.

[0014] Furthermore, the cover plate is a metal cover plate.

[0015] The beneficial effect of this utility model is that it effectively solves the existing problems by optimizing the setting of the coal discharge hole and cover plate. Attached Figure Description

[0016] 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:

[0017] Figure 1 This is a structural schematic diagram showing the direction of travel of the scraper body according to an embodiment of the present invention.

[0018] Figure 2 for Figure 1 A partial structural diagram of the walking wheel in the embodiment shown.

[0019] Figure 3 for Figure 1 The illustrated embodiment is shown as a top-down structural diagram at the location of the walking wheels.

[0020] Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure along the AA direction.

[0021] Figure 5 for Figure 4 A magnified schematic diagram of the structure at point B in the middle.

[0022] Figure 6 for Figure 4 A schematic diagram of the cross-sectional structure along the CC direction.

[0023] The components are: 1. scraper body; 2. mounting hole; 3. traveling wheel; 4. mounting block; 401. protrusion; 5. pressure block; 6. mounting groove; 7. coal discharge hole; 8. cover plate; 9. flexible connector; 10. pressure groove. Detailed Implementation

[0024] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings.

[0025] 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.

[0026] 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.

[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing" 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 connected entities do not have a connecting structure to establish a connection relationship, 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.

[0028] 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.

[0029] In this utility model, such as Figures 1 to 6As shown, a 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 that can be rotatably mounted in the mounting hole 2. The scraper body 1 has a coal discharge hole 7 on its top surface that communicates with the mounting hole 2. The scraper body 1 also includes a cover plate 8 that can be opened and closed in the coal discharge hole 7.

[0030] During coal transportation, the rolling scraper of this invention rolls along the wall of the chute via the traveling wheels 3, while the cover plate 8 is closed. When the scraper body rotates to the underside of the conveying surface of the chute, the cover plate 8 opens, and the coal located in the mounting hole 2 is discharged through the coal discharge hole 7 under gravity. This allows the traveling wheels 3 to carry the coal into the mounting hole 2 out, preventing coal sludge blockage in the mounting hole 2.

[0031] In the illustrated embodiment, more specifically regarding the structure of this utility model, one end of the cover plate 8 is rotatably connected to the side of the coal discharge hole 7 facing the direction of travel of the scraper body.

[0032] As shown in the figure, by rotatably connecting the cover plate 8 to one side of the coal discharge hole 7, the cover plate automatically flips open under gravity when the scraper body 1 rotates to the lower side of the conveying surface of the chute. When the scraper body 1 rotates from the lower side of the conveying surface of the chute to the upper side of the conveying surface, the cover plate 8 closes and seals the coal discharge hole 7 under its own weight.

[0033] In the illustrated embodiment, more specifically, regarding the structure of this utility model, the cover plate 8 is connected to the scraper body 1 via a flexible connector 9. By using the flexible connector 9 as the connecting component for the flipping and deformation of the cover plate 8, compared to using a pivot structure to flip the cover plate 8, the connection structure of this utility model using the flexible connector 9 is more stable.

[0034] In a preferred embodiment, more specifically, regarding the structure of this utility model, the flexible connector 9 is configured as a rubber connector or a wear-resistant cloth connector.

[0035] In a preferred embodiment, more specifically regarding the structure of this utility model, the top surface of the scraper body 1 is provided with an installation groove 6, and a pressure block 5 is connected to the installation groove 6 by screws. The pressure block 5 clamps and fixes the flexible connector to the bottom wall of the installation groove 6.

[0036] In a preferred embodiment, specifically regarding the structure of this invention, the cross-sectional dimensions of the coal discharge hole 7 gradually increase from bottom to top. As shown in the figure, this arrangement facilitates the discharge of coal from the coal discharge hole 7 when the scraper body 1 is flipped over and the cover plate 8 is opened.

[0037] In a preferred embodiment, more specifically regarding the structure of this utility model, the rolling scraper is provided with a mounting block 4, the mounting block 4 is provided with a mounting hole 2, and the scraper body 1 is provided with a mounting groove 6 for the mounting block 4 to be fitted in; the mounting block 4 is provided with a protrusion 401 on the upper edge of the mounting hole 2, and the protrusion 401 extends into the coal discharge hole 7 in its vertical projection.

[0038] As shown in the figure, this allows for easy assembly by inserting the traveling wheel 3 into the mounting block 4 and then embedding the mounting block 4 into the scraper body 1. In case of a malfunction in the traveling wheel 3, a top rod can be inserted through the coal discharge hole 7 to push out the mounting block 4, making it easy to remove.

[0039] In the illustrated embodiment, to further specify the structure of this utility model, the vertical projection of the coal discharge hole 7 is located on the side of the mounting hole 2 facing the travel direction of the scraper body 1 along the centerline of the traveling wheel 3.

[0040] As shown in the figure, this design reduces the size of the dust discharge port, thereby decreasing the pressure and impact on the cover plate 8 and improving its operational stability. By positioning the projection of the coal discharge hole 7 on one side of the mounting hole 2, the movement space of the coal within the mounting hole 2 is increased on the side where the traveling wheel 3 exits. This results in better loosening of the coal at the exit point of the traveling wheel 3, facilitating its removal when the wheel exits the mounting hole 2. Furthermore, during rotation, the traveling wheel 3 can drive the coal in the mounting hole 2 towards the lower side of the coal discharge hole 7, allowing for convenient and direct discharge of the accumulated coal after the scraper body 1 flips over.

[0041] In the illustrated embodiment, more specifically regarding the structure of this utility model, the distance between the top wall of the mounting hole 2 and the traveling wheel 3 gradually increases along the direction of travel toward the scraper body 1 and extends to the lower side of the shown coal discharge hole 7.

[0042] As shown in the figure, the top wall of the mounting hole 2 is set in an arc shape, which can reduce the dead corner of the mounting hole 2 at the top wall position, so as to promote the movement of coal towards the discharge section when the traveling wheel 3 rotates.

[0043] In a preferred embodiment, more specifically, the cover plate 8 is a metal cover plate 8.

[0044] 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.

[0045] 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 rolling scraper, comprising a scraper body, characterized in that, The scraper body has a mounting hole at its bottom. The rolling scraper also includes a traveling wheel that can be rotatably mounted in the mounting hole. The scraper body has a coal discharge hole on its top surface that communicates with the mounting hole. The scraper body also includes a cover plate that can be opened and closed in the coal discharge hole.

2. A rolling scraper according to claim 1, characterized in that, One end of the cover plate is rotatably connected to the side of the coal discharge hole facing the direction of travel of the scraper body.

3. A rolling scraper according to claim 2, characterized in that, The cover plate is connected to the scraper body via a flexible connector.

4. A rolling scraper according to claim 3, characterized in that, The flexible connector is configured as a rubber connector or a wear-resistant cloth connector.

5. A rolling scraper according to claim 4, characterized in that, The top surface of the scraper body is provided with a pressure groove, and a pressure block is connected in the pressure groove by screws. The pressure block clamps and fixes the flexible connector to the bottom wall of the pressure groove.

6. A rolling scraper according to claim 1, characterized in that, The cross-sectional dimensions of the coal discharge hole gradually increase from bottom to top.

7. A rolling scraper according to claim 1, characterized in that, The rolling scraper is provided with a mounting block, the mounting block is provided with a mounting hole, and the scraper body is provided with a mounting groove for the mounting block to be fitted in; The mounting block has a protrusion at the upper edge of the mounting hole, and the protrusion extends into the coal discharge hole in a vertical projection.

8. A rolling scraper according to claim 1, characterized in that, The vertical projection of the coal discharge hole is located on the side of the mounting hole on the centerline of the traveling wheel, facing the direction of travel of the scraper body.

9. A rolling scraper according to claim 8, characterized in that, The distance between the top wall of the mounting hole and the traveling wheel gradually increases along the direction of travel toward the scraper body and extends to the lower side of the coal discharge hole shown.

10. A rolling scraper according to claim 2, characterized in that, The cover plate is a metal cover plate.

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