A combined rolling and scraping blade

Abstract

The utility model relates to rolling scraper technical field, especially in kind, a combined rolling scraper, including scraper body, scraper body bottom is equipped with mounting hole, the combined rolling scraper still includes the walking wheel with axle hole, the bearing of installing in axle hole, the mounting shaft of connecting in bearing, the lower edge of axle hole is higher than the bottom surface of scraper body, the both ends of mounting shaft are installed in the hole wall of mounting hole respectively, and the axis of mounting hole is with the transverse direction of scraper body parallel, the utility model discloses the mounting structure of walking wheel is optimized and designed, and effectively solved the existing problem.

Description

Technical Field

[0001] This utility model relates to the field of rolling scraper technology, and in particular to a combined 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 problem, some existing technologies incorporate a rolling structure at the bottom of the scraper to convert the sliding friction movement between the scraper and the chute into rolling movement, thus solving the aforementioned issue. For example, patent CN218706210U discloses a multi-bearing scraper, which installs rolling bearings at the bottom of the scraper, allowing the bearings to directly contact the chute. Since scrapers operate in dusty and water-spraying environments when transporting coal, the protection of the rolling bearings' working environment is crucial. Because the side of the rolling bearing extends directly beyond the underside of the scraper, the bearing end cap directly extends outward from the scraper and contacts the coal and water in the chute, further deteriorating the working environment of the rolling bearing. Therefore, this application proposes a combined rolling scraper to solve the problems existing in the prior art. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a combined rolling scraper, which effectively solves the existing problems by optimizing the installation structure of the traveling wheels.

[0005] To address the aforementioned problems, this utility model provides a combined rolling scraper, comprising a scraper body with a mounting hole at its bottom. The combined rolling scraper also includes a traveling wheel with a shaft hole, a bearing mounted in the shaft hole, and a mounting shaft connected to the bearing. The lower edge of the shaft hole is higher than the bottom surface of the scraper body. Both ends of the mounting shaft are respectively mounted on the wall of the mounting hole, and the axis of the mounting hole is parallel to the transverse direction of the scraper body.

[0006] Furthermore, the traveling wheel also includes sealing end caps installed on both sides of the bearing. The sealing end caps are connected to the mounting shaft and dynamically seal with the traveling wheel. The traveling wheel has a coal discharge groove formed at the sealing end cap position. The sealing end cap forms the bottom wall of the coal discharge groove, and at least part of the side wall of the coal discharge groove extends to the lower side of the scraper body.

[0007] Furthermore, the radial dimension of the coal discharge groove gradually increases from the inside to the outside.

[0008] Furthermore, the sidewall of the coal discharge groove is provided with guide ribs, which extend obliquely from the inside to the outside in a direction opposite to the rotation of the traveling wheel.

[0009] Furthermore, the wheels are made of metal.

[0010] Furthermore, the edges on both sides of the traveling wheel are provided with multiple coal guiding gaps at circumferential intervals.

[0011] Furthermore, a coal guide ring groove is provided in the middle of the traveling wheel.

[0012] Furthermore, the combined 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.

[0013] Furthermore, the mounting block has fixing grooves on both sides of the mounting hole, and the combined rolling scraper also includes a shaft seat. The two ends of the mounting shaft are respectively inserted into the shaft seat, and the shaft seat can be fixedly inserted into the fixing groove.

[0014] Furthermore, the sealing end cap includes a cover body connected to the mounting shaft and a sealing ring installed between the edge of the cover body and the wall of the shaft hole.

[0015] The beneficial effect of this utility model is that it effectively solves the existing problems by optimizing the installation structure of the walking wheel. 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 schematic diagram of the structure after the marking scraper body moves in the direction of movement according to an embodiment of the present invention.

[0018] Figure 2 for Figure 1 The illustrated embodiment shows a partial structural diagram of the scraper body at its bottom surface.

[0019] Figure 3 for Figure 1 The illustrated embodiment is a top-view structural diagram of the walking wheel position.

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

[0021] Figure 5 for Figure 4 Schematic diagram of the cross-sectional structure along the BB direction.

[0022] Figure 6 for Figure 5 A magnified schematic diagram of the structure at point C.

[0023] Figure 7 for Figure 1 The illustrated embodiment shows a schematic diagram of the walking wheel structure.

[0024] The components are: 1. Scraper body; 2. Mounting hole; 3. Traveling wheel; 4. Bearing; 5. Mounting shaft; 6. Sealing end cover; 601. Cover body; 602. Sealing ring; 7. Coal discharge groove; 8. Guide rib; 9. Coal guide notch; 10. Coal guide ring groove; 11. Mounting block; 12. Mounting groove; 13. Fixing groove; 14. Shaft seat. Detailed Implementation

[0025] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings.

[0026] 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.

[0027] 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.

[0028] 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.

[0029] 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.

[0030] In this utility model, such as Figures 1 to 7 As shown, a combined rolling scraper is provided, including a scraper body 1. The scraper body 1 has a mounting hole 2 at its bottom. The rolling scraper also includes a traveling wheel 3 with a shaft hole, a bearing 4 mounted in the shaft hole, and a mounting shaft 5 connected to the bearing 4. The lower edge of the shaft hole is higher than the bottom surface of the scraper body 1. The two ends of the mounting shaft 5 are respectively mounted on the hole wall of the mounting hole 2, and the axis of the mounting hole 2 is parallel to the transverse direction of the scraper body 1.

[0031] The rolling scraper of this utility model is as follows: Figure 2 As shown, before installing the traveling wheel 3 into the mounting hole 2, the bearing 4 and the mounting shaft 5 are pre-assembled in the shaft hole of the traveling wheel 3. This allows for the convenient installation of a sealing structure for the bearing 4 at the shaft hole. After installing the mounting shaft 5 into the hole wall of the mounting hole 2, the installation is complete. During use, because the bearing 4 is located inside the shaft hole, and the lower edge of the shaft hole is higher than the bottom surface of the scraper body 1, the shaft hole does not directly contact the coal and coal slurry at the chute during the scraper's coal transport process. This reduces the possibility of coal directly impacting the bearing 4 end cover during the scraper's movement. Moreover, the coal entering between the end face of the traveling wheel 3 and the hole wall of the mounting hole 2 is carried in by the rotation of the traveling wheel 3. This allows the coal in this part to maintain a certain fluidity under the rotation and rubbing action of the end face of the traveling wheel 3. This not only facilitates the discharge of coal at the end face of the traveling wheel 3 but also prevents coal at the shaft hole from clogging and putting pressure on the edge of the end cover, further inhibiting coal from entering the inner side of the sealed end cover.

[0032] This invention employs a method of assembling the bearing within the shaft hole on the inner side of the wheel, which improves the stability of use and effectively solves the problems existing in the prior art.

[0033] In the illustrated embodiment, for the structure of this utility model, more specifically, the traveling wheel 3 further includes sealing end caps 6 installed on both sides of the bearing 4. The sealing end caps 6 are connected to the mounting shaft 5 and dynamically seal with the traveling wheel 3. The traveling wheel 3 forms a coal discharge groove 7 at the position of the sealing end cap 6. The sealing end cap 6 forms the bottom wall of the coal discharge groove 7. At least part of the side wall of the coal discharge groove 7 extends to the lower side of the scraper body 1.

[0034] As shown in the figure, the sealing end cap 6 reduces the possibility of coal entering the shaft hole and contacting the bearing. The coal discharge groove 7 provides greater movement space for the coal entering the end face of the traveling wheel 3, further preventing coal from getting stuck between the sealing end cap 6 and the wall of the mounting hole 2. Furthermore, the sealing end cap 6 is fixed to the mounting shaft 5, making it less likely for the coal at the sealing end cap 6 to rub against each other when the traveling wheel 3 rotates, thus reducing the possibility of the coal slime at the sealing end cap 6 being rubbed dry and caking. Moreover, the rotation of the coal slime driven by the traveling wheel 3 at the edge of the sealing end cap 6 allows the traveling wheel 3 to move at the edge of the sealing end cap, increasing the fluidity of the coal in the coal discharge groove 7. The coal can then be discharged from the part extending from the scraper body 1 through the discharge groove, preventing coal blockage at the discharge groove.

[0035] In the illustrated embodiment, more specifically, regarding the structure of this utility model, the radial dimension of the coal discharge groove 7 gradually increases from the inside to the outside.

[0036] As shown in the figure, this design makes the coal discharge groove 7 a conical surface with a larger inner diameter and a smaller outer diameter. This allows for a portion of the sidewall of the coal discharge groove 7 to extend to the lower side of the scraper body 1, while ensuring that the lower edge of the sealing end cover 6 is higher than the bottom surface of the scraper body 1. It also reduces the gap between the sidewall of the coal discharge groove 7 and the wall of the mounting hole 2, thereby reducing the amount of coal carried into the coal discharge groove 7 by the rotating wheel 3. Furthermore, the conical surface of the discharge groove facilitates the discharge of coal within the coal discharge groove 7 onto the side where the traveling wheel 3 exits the mounting hole 2.

[0037] In an alternative embodiment, the coal discharge groove 7 may also be configured as a stepped hole-shaped coal discharge groove 7, wherein a sealing end cap 6 is provided at the constricted section of the coal discharge groove 7 and the expanded section extends to the bottom surface of the scraper body 1.

[0038] In the illustrated embodiment, to further specify the structure of this utility model, as shown in the figure, the sidewall of the coal discharge groove 7 is formed with a guide rib 8, which extends obliquely from the inside to the outside along the direction opposite to the rotation of the walking wheel 3.

[0039] As shown in the figure, by adding guide ribs 8 to the sidewall of the coal discharge groove 7, the fluidity of the coal slurry in the coal discharge groove 7 can be further increased, thereby accelerating the discharge of coal from the coal discharge groove 7 by the traveling wheel 3 at the exit side of the mounting hole 2. By optimizing the extension direction of the guide ribs 8, the amount of coal carried in by the guide ribs 8 on the side where the traveling wheel 3 enters the mounting hole 2 can be reduced, and the coal in the coal discharge groove 7 can be promoted to flow towards the edge of the coal discharge groove 7, so as to facilitate the discharge of coal.

[0040] In a preferred embodiment, more specifically, regarding the structure of this utility model, the walking wheel 3 is configured as a metal walking wheel 3.

[0041] In a preferred embodiment, specifically regarding the structure of this invention, the two sides of the traveling wheel 3 are provided with multiple coal guiding notches 9 spaced circumferentially at their edges. By providing the coal guiding notches 9, the traveling wheel 3 can facilitate the flow of coal within the mounting hole 2 during its rolling motion, thereby further increasing the fluidity of the coal within the mounting hole 2.

[0042] In a preferred embodiment, more specifically regarding the structure of this utility model, the walking wheel 3 is provided with a coal guide ring groove 10 in the middle.

[0043] In a preferred embodiment, more specifically regarding the structure of this utility model, the rolling scraper is provided with a mounting block 11, the mounting block 11 is provided with a mounting hole 2, and the scraper body 1 is provided with a mounting groove 12 for the mounting block 11 to be fitted.

[0044] This allows for easy installation by inserting the mounting shaft 5 into the mounting block 11 and then embedding the mounting block 11 into the scraper body 1 during assembly.

[0045] In a preferred embodiment, more specifically regarding the structure of this utility model, the mounting block 11 is provided with fixing grooves 13 on both sides of the mounting hole 2, and the rolling scraper also includes a bearing seat 14. Both ends of the mounting shaft 5 are respectively inserted into the bearing seat 14, and the bearing seat 14 can be fixedly inserted into the fixing groove 13.

[0046] As shown in the figure, the two ends of the mounting shaft 5 are respectively set in a stepped shape and are inserted into the shaft seat 14. During assembly, the mounting shaft 5 and the shaft seat 14 can be assembled first, and then the shaft seat 14 can be inserted into the fixing groove 13 to complete the assembly. The connection between the shaft seat 14 and the fixing groove 13 can be fixed by welding, bolting, or interference fit.

[0047] In a preferred embodiment, more specifically regarding the structure of this utility model, the sealing end cap 6 includes a cover body 601 connected to the mounting shaft 5 and a sealing ring 602 installed between the edge of the cover body 601 and the wall of the shaft hole.

[0048] Specifically, the sealing ring 602 can be made of wear-resistant polytetrafluoroethylene (PTFE). The sealing end cap 6 and the mounting shaft 5 can be connected by welding or threaded fastening.

[0049] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to mutually. 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 of the method embodiments.

[0050] 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 combined rolling scraper, comprising a scraper body, characterized in that, The scraper body has a mounting hole at its bottom. The combined rolling scraper also includes a traveling wheel with a shaft hole, a bearing installed in the shaft hole, and a mounting shaft connected to the bearing. The lower edge of the shaft hole is higher than the bottom surface of the scraper body. The two ends of the mounting shaft are respectively installed on the hole wall of the mounting hole, and the axis of the mounting hole is parallel to the transverse direction of the scraper body.

2. The combined rolling scraper according to claim 1, characterized in that, The traveling wheel also includes sealing end caps installed on both sides of the bearing. The sealing end caps are connected to the mounting shaft and are dynamically sealed to the traveling wheel. The traveling wheel has a coal discharge groove formed at the sealing end cap position. The sealing end cap forms the bottom wall of the coal discharge groove. At least part of the side wall of the coal discharge groove extends to the lower side of the scraper body.

3. A combined rolling scraper according to claim 2, characterized in that, The radial dimension of the coal discharge groove gradually increases from the inside to the outside.

4. A combined rolling scraper according to claim 2, characterized in that, The sidewall of the coal discharge groove is provided with guide ribs, which extend obliquely from the inside to the outside in a direction opposite to the rotation of the traveling wheel.

5. A combined rolling scraper according to claim 1, characterized in that, The wheels are metal wheels.

6. A combined rolling scraper according to claim 1, characterized in that, The edges on both sides of the traveling wheel are provided with multiple coal guide gaps at circumferential intervals.

7. A combined rolling scraper according to claim 1, characterized in that, The traveling wheel is provided with a coal guide ring groove in the middle.

8. A combined rolling scraper according to claim 1, characterized in that, The combined 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.

9. A combined rolling scraper according to claim 8, characterized in that, The mounting block has fixing grooves on both sides of the mounting hole, and the combined rolling scraper also includes a shaft seat. The two ends of the mounting shaft are respectively inserted into the shaft seat, and the shaft seat can be fixedly inserted into the fixing groove.

10. A combined rolling scraper according to claim 2, characterized in that, The sealing end cap includes a cover body connected to the mounting shaft and a sealing ring installed between the edge of the cover body and the wall of the shaft hole.

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