Cutting gear box and driving anchor machine

Abstract

The utility model belongs to the technical field of mining, and discloses a cutting gearbox and a bolter miner. The cutting gear box comprises a gear box body and a coal breaking tooth structure, an opening is formed in a box body of the gear box body, and the opening is communicated with the interior of the box body; the coal breaking tooth structure comprises a first coal breaking assembly, the first coal breaking assembly comprises a base sealing plate and first coal breaking teeth which are arranged in a split mode, and the base sealing plate is detachably connected to the opening of the box body and can seal the opening; the first coal breaking teeth are detachably connected to the base sealing plate and distributed outside the box body. The difficulty of replacing the first coal breaking teeth can be effectively reduced, the efficiency of replacing the first coal breaking teeth can be improved, and the risk that external scraps and the like enter the box body from the opening due to replacement of the first coal breaking teeth can be effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of mining, in particular to a cutting gear box and an anchor digger. Background Art

[0002] The bolter miner is mainly composed of a cutting gearbox, a cutting drum, etc. When the bolter miner is working, since the cutting drum cannot cover the entire coal breaking working surface, a coal breaking tooth structure is usually set on the cutting gearbox to supplement the impact on the coal breaking working surface to improve the coal breaking effect and efficiency.

[0003] At present, the existing technology usually uses a threaded connection method to directly connect the coal breaking tooth structure to the opening of the cutting gear box, so that the coal breaking tooth structure can not only close the opening to break coal, but also facilitate observation or maintenance of the internal structure of the cutting gear box through the opening. However, this kind of cutting gear box is difficult to replace because of the large size and heavy weight of the coal breaking tooth structure; secondly, during the replacement of the coal breaking tooth structure, there is a risk of foreign debris entering the cutting gear box through the opening. Utility Model Content

[0004] The utility model aims to provide a cutting gear box and an anchor miner to solve the above-mentioned problems existing in the cutting gear box in the prior art when replacing the coal breaking tooth structure.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] The cutting gearbox comprises a gearbox body and a coal-breaking tooth structure, wherein the gearbox body is provided with an opening, and the opening is communicated with the interior of the gearbox body; the coal-breaking tooth structure comprises a first coal-breaking assembly, and the first coal-breaking assembly comprises a base cover plate and a first coal-breaking tooth which are separately arranged;

[0007] The base cover plate is detachably connected to the opening of the box body and is capable of closing the opening;

[0008] The first coal breaking teeth are detachably connected to the base cover plate and are distributed outside the box body.

[0009] As a preferred solution of the above-mentioned cutting gearbox, the first coal breaking assembly also includes a first connecting piece and a second connecting piece, the first connecting piece passes through the first coal breaking tooth and is threadedly connected to the base cover plate, and the second connecting piece passes through the base cover plate and is threadedly connected to the box body.

[0010] As a preferred solution of the above-mentioned cutting gear box, one of the base cover plate and the first coal breaking tooth is provided with a first positioning groove, and the other is provided with a first positioning block, and the first positioning block is inserted into the first positioning groove.

[0011] As a preferred solution of the above-mentioned cutting gearbox, the base cover plate is provided with a plug-in sealing part, and the first coal breaking assembly also includes a sealing ring, the plug-in sealing part is plugged into the opening, and the sealing ring is used to seal the gap between the outer peripheral wall of the plug-in sealing part and the inner peripheral wall of the opening.

[0012] As a preferred solution of the above-mentioned cutting gear box, an annular sealing groove is recessed in one of the outer circumferential wall of the plug-in sealing portion and the inner circumferential wall of the opening, the sealing ring is partially embedded in the annular sealing groove, and the sealing ring is circumferentially pressed against the other of the outer circumferential wall of the plug-in sealing portion and the inner circumferential wall of the opening.

[0013] As a preferred solution of the above-mentioned cutting gear box, the coal breaking tooth structure further includes a second coal breaking assembly, the second coal breaking assembly includes a second coal breaking tooth, and the second coal breaking tooth is detachably connected to the outside of the box body;

[0014] The tooth-shaped portion of the first coal-breaking tooth and the tooth-shaped portion of the second coal-breaking tooth are distributed on the same circumference.

[0015] As a preferred solution of the above-mentioned cutting gear box, the second coal breaking assembly further includes a third connecting piece, and the third connecting piece passes through the second coal breaking teeth and is threadedly connected to the box body.

[0016] As a preferred solution of the above-mentioned cutting gearbox, there are multiple second coal-breaking assemblies, and the multiple second coal-breaking assemblies are distributed at intervals in the circumference of the box body;

[0017] The tooth-shaped portions of the plurality of second coal-breaking teeth are distributed on the same circumference.

[0018] As a preferred solution of the above-mentioned cutting gearbox, the cutting gearbox also includes a third coal breaking assembly and a bearing cover detachably connected to the box body, the third coal breaking assembly includes third coal breaking teeth, and the third coal breaking teeth are detachably connected to the bearing cover.

[0019] A bolter miner comprises the above-mentioned cutting gearbox.

[0020] Beneficial effects of the utility model:

[0021] The utility model provides a cutting gear box and an anchor mining machine. The cutting gear box comprises a gear box body and a coal breaking tooth structure, wherein the gear box body is provided with an opening, and the opening is communicated with the inside of the box body; the coal breaking tooth structure comprises a first coal breaking assembly, and the first coal breaking assembly comprises a base sealing plate and a first coal breaking tooth which are separately arranged, and the base sealing plate is detachably connected to the opening of the box body and can close the opening; the first coal breaking teeth are detachably connected to the base sealing plate and are distributed outside the box body.

[0022] By separately arranging the base cover plate and the first coal breaking tooth, the volume and weight of the base cover plate are small, and the volume and weight of the first coal breaking tooth are small compared with the prior art; by detachably connecting the base cover plate to the opening of the box body, and detachably connecting the first coal breaking tooth to the base cover plate, when the first coal breaking tooth needs to be replaced, only the first coal breaking tooth needs to be removed and replaced. Since the volume and weight of the first coal breaking tooth are small, the difficulty of replacing the first coal breaking tooth can be effectively reduced, and the efficiency of replacing the first coal breaking tooth can be effectively improved; secondly, since the base cover plate is not removed during the replacement of the first coal breaking tooth, the base cover plate maintains a closed opening state, thereby effectively avoiding the risk of foreign debris entering the interior of the box body through the opening due to replacement of the first coal breaking tooth, and can effectively improve the service life of the cutting gear box.

[0023] When it is necessary to observe or inspect the structure in the box through the opening, the base cover plate and the first coal breaking tooth can be removed from the box as a whole. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of a cutting gear box provided by a specific embodiment of the utility model;

[0025] Figure 2 It is a partial cross-sectional view of a cutting gear box provided by a specific embodiment of the utility model;

[0026] Figure 3 yes Figure 2 Partial view at A;

[0027] Figure 4 It is a structural schematic diagram of a first coal breaking tooth provided by a specific embodiment of the utility model;

[0028] Figure 5 It is a structural schematic diagram of the first coal breaking assembly provided in a specific embodiment of the utility model.

[0029] In the figure:

[0030] 100, housing; 200, bearing cover;

[0031] 1. First coal-breaking assembly; 11. Base sealing plate; 111. First positioning groove; 112. Insertion sealing portion; 1121. Annular sealing groove; 12. First coal-breaking tooth; 121. First positioning block; 13. First connecting piece; 14. Second connecting piece; 15. Sealing ring;

[0032] 2. Second coal-breaking assembly; 21. Second coal-breaking tooth; 22. Third connecting piece;

[0033] 3. The third coal-breaking assembly; 31. The third coal-breaking tooth; 32. The fourth connecting piece. DETAILED DESCRIPTION

[0034] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0035] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0037] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0038] The utility model provides a cutting gear box, such as Figure 1-5 As shown, the cutting gear box includes a gear box body and a coal breaking tooth structure. The box body 100 of the gear box body is provided with an opening, and the opening is connected to the interior of the box body 100; the coal breaking tooth structure includes a first coal breaking component 1, and the first coal breaking component 1 includes a base sealing plate 11 and a first coal breaking tooth 12 which are separately arranged. The base sealing plate 11 is detachably connected to the opening of the box body 100 and can close the opening; the first coal breaking tooth 12 is detachably connected to the base sealing plate 11 and is distributed outside the box body 100.

[0039] By separately arranging the base cover plate 11 and the first coal breaking tooth 12, the volume and weight of the base cover plate 11 are small, and the volume and weight of the first coal breaking tooth 12 are small compared with the prior art; by detachably connecting the base cover plate 11 to the opening of the box body 100, and detachably connecting the first coal breaking tooth 12 to the base cover plate 11, when the first coal breaking tooth 12 needs to be replaced, only the first coal breaking tooth 12 needs to be removed and replaced. Since the volume and weight of the first coal breaking tooth 12 are small, the difficulty of replacing the first coal breaking tooth 12 can be effectively reduced, and the efficiency of replacing the first coal breaking tooth 12 can be effectively improved; secondly, since the base cover plate 11 is not removed during the replacement of the first coal breaking tooth 12, the base cover plate 11 maintains a closed opening state, thereby effectively avoiding the risk of foreign debris entering the interior of the box body 100 through the opening due to the replacement of the first coal breaking tooth 12, and can effectively improve the service life of the cutting gear box.

[0040] It is understandable that when it is necessary to observe or inspect the structure in the box body 100 through the opening, the base cover plate 11 and the first coal breaking teeth 12 can be removed from the box body 100 as a whole.

[0041] Among them, Figure 1-5 As shown, the first coal breaking assembly 1 further includes a first connecting member 13 and a second connecting member 14. The first connecting member 13 passes through the first coal breaking tooth 12 and is threadedly connected to the base cover plate 11. The second connecting member 14 passes through the base cover plate 11 and is threadedly connected to the box body 100. This arrangement enables the base cover plate 11 to be detachably connected to the opening of the box body 100, and the first coal breaking tooth 12 to be detachably connected to the base cover plate 11.

[0042] Specifically, the first connecting member 13 is a first screw. Preferably, the first coal breaking tooth 12 is provided with a first countersunk groove, and the head of the first screw is distributed in the first countersunk groove, so as to improve the aesthetics of the first coal breaking tooth 12.

[0043] Optionally, there are multiple first connecting members 13, and the multiple first connecting members 13 are distributed at intervals on the first coal breaking teeth 12, so as to improve the connection reliability between the first coal breaking teeth 12 and the base cover plate 11.

[0044] Specifically, the second connecting member 14 is a second screw. Preferably, the base cover plate 11 is provided with a second countersunk groove, and the head of the second screw is distributed in the second countersunk groove. The aesthetics of the base cover plate 11 can be improved.

[0045] Optionally, there are multiple second connectors 14 , and the multiple second connectors 14 are spaced apart and distributed on the base cover 11 , so as to improve the connection reliability between the base cover 11 and the box body 100 .

[0046] Optionally, one of the base cover plate 11 and the first coal breaking tooth 12 is provided with a first positioning groove 111, and the other is provided with a first positioning block 121, and the first positioning block 121 is plugged into the first positioning groove 111. Such a configuration can limit the relative position of the base cover plate 11 and the first coal breaking tooth 12, and facilitate the connection of the first coal breaking tooth 12 to the base cover plate 11.

[0047] Specifically, in this embodiment, Figure 2-4 As shown, the base cover plate 11 is provided with a first positioning groove 111, and the first coal breaking tooth 12 is provided with a first positioning block 121, and the first positioning block 121 is inserted into the first positioning groove 111. As an alternative, the base cover plate 11 is provided with a first positioning block 121, and the first coal breaking tooth 12 is provided with a first positioning groove 111, and the first positioning block 121 is inserted into the first positioning groove 111.

[0048] Among them, Figure 3 As shown, the base cover plate 11 is provided with a plug-in seal portion 112, and the first coal-breaking assembly 1 further includes a sealing ring 15. The plug-in seal portion 112 is plugged into the opening, and the sealing ring 15 is used to seal the gap between the outer peripheral wall of the plug-in seal portion 112 and the inner peripheral wall of the opening. Such an arrangement can prevent the lubricating liquid in the box body 100 from leaking from the gap between the outer peripheral wall of the plug-in seal portion 112 and the inner peripheral wall of the opening, and can also prevent foreign impurities from entering the box body 100 from the gap between the outer peripheral wall of the plug-in seal portion 112 and the inner peripheral wall of the opening.

[0049] Specifically, Figure 3 As shown, an annular sealing groove 1121 is recessed in one of the outer peripheral wall of the plug-in sealing portion 112 and the inner peripheral wall of the opening, and the sealing ring 15 is partially embedded in the annular sealing groove 1121, and the sealing ring 15 is tightly pressed against the other of the outer peripheral wall of the plug-in sealing portion 112 and the inner peripheral wall of the opening along the circumferential direction. This arrangement is to achieve sealing of the gap between the outer peripheral wall of the plug-in sealing portion 112 and the inner peripheral wall of the opening. In this embodiment, as shown in FIG. Figure 3 As shown, an annular sealing groove 1121 is exemplarily provided on the outer peripheral wall of the plug-in sealing portion 112. As an alternative, the annular sealing groove 1121 can also be provided on the inner peripheral wall of the opening.

[0050] Among them, Figure 1As shown, the coal-breaking tooth structure also includes a second coal-breaking component 2, and the second coal-breaking component 2 includes a second coal-breaking tooth 21, and the second coal-breaking tooth 21 is detachably connected to the outside of the box body 100; the tooth-shaped portion of the first coal-breaking tooth 12 and the tooth-shaped portion of the second coal-breaking tooth 21 are distributed on the same circumference. It can be understood that along the circumference of the box body 100, the first coal-breaking component 1 is correspondingly set in the partial area where the opening is set, and the second coal-breaking component 2 is correspondingly set in the remaining area, and the tooth-shaped portion of the first coal-breaking tooth 12 and the tooth-shaped portion of the second coal-breaking tooth 21 are distributed on the same circumference, which can improve the coal-breaking effect and efficiency of the coal-breaking tooth structure; secondly, the second coal-breaking tooth 21 is detachably connected to the outside of the box body 100, which is convenient for replacing the second coal-breaking tooth 21.

[0051] like Figure 1 As shown, it is preferred that the top circle of the tooth-shaped portion of the first coal-breaking tooth 12 is the same as the top circle of the tooth-shaped portion of the second coal-breaking tooth 21. This makes the force mode of the first coal-breaking tooth 12 and the force mode of the second coal-breaking tooth 21 roughly consistent during the coal-breaking process, which can improve the service life of the first coal-breaking tooth 12 and the second coal-breaking tooth 21, and can further improve the coal-breaking effect and efficiency of the coal-breaking tooth structure.

[0052] Specifically, Figure 1 As shown, the second coal-breaking assembly 2 further includes a third connecting member 22, and the third connecting member 22 passes through the second coal-breaking teeth 21 and is threadedly connected to the housing 100. This arrangement enables the second coal-breaking teeth 21 to be detachably connected to the housing 100.

[0053] Specifically, the third connecting member 22 is a third screw. Preferably, the second coal breaking tooth 21 is provided with a third countersunk groove, and the head of the third screw is distributed in the third countersunk groove, so as to improve the aesthetics of the second coal breaking tooth 21.

[0054] Optionally, there are multiple third connecting members 22, and the multiple third connecting members 22 are distributed at intervals on the second coal breaking teeth 21. This can improve the connection reliability between the second coal breaking teeth 21 and the box body 100.

[0055] Optionally, there are multiple second coal-breaking assemblies 2, and the multiple second coal-breaking assemblies 2 are distributed at intervals in the circumferential direction of the box body 100; the tooth-shaped portions of the multiple second coal-breaking teeth 21 are all distributed in the same circumferential direction. It can be understood that the tooth-shaped portion of the first coal-breaking tooth 12 and the tooth-shaped portions of the multiple second coal-breaking teeth 21 are all distributed in the same circumferential direction. The number of second coal-breaking teeth 21 is adaptively adjusted according to the size of the box body 100 and the size of the opening. This enables the coal-breaking effect and efficiency of the coal-breaking tooth structure to be further improved. In this embodiment, only two second coal-breaking assemblies 2 are set as an example.

[0056] Optionally, one of the second coal-breaking tooth 21 and the box body 100 is provided with a second positioning groove, and the other is provided with a second positioning block, and the second positioning block is plugged into the second positioning groove. This arrangement can limit the relative position of the second coal-breaking tooth 21 and the box body 100, and facilitate the connection of the second coal-breaking tooth 21 to the box body 100.

[0057] Among them, Figure 1 As shown, the cutting gearbox further includes a third coal-breaking assembly 3 and a bearing cover 200 detachably connected to the housing 100. The third coal-breaking assembly 3 includes a third coal-breaking tooth 31, and the third coal-breaking tooth 31 is detachably connected to the bearing cover 200. Thus, the coal-breaking effect and efficiency of the cutting gearbox can be further improved.

[0058] Specifically, Figure 1 As shown, the third coal-breaking assembly 3 further includes a fourth connecting member 32, which passes through the third coal-breaking tooth 31 and is threadedly connected to the bearing cover 200. This arrangement enables the third coal-breaking tooth 31 to be detachably connected to the bearing cover 200.

[0059] Specifically, the fourth connecting member 32 is a fourth screw. Preferably, the third coal-breaking tooth 31 is provided with a fourth countersunk groove, and the head of the fourth screw is distributed in the fourth countersunk groove, so as to improve the aesthetics of the third coal-breaking tooth 31.

[0060] Optionally, there are multiple fourth connecting members 32, and the multiple fourth connecting members 32 are distributed at intervals on the third coal-breaking teeth 31. This can improve the connection reliability between the third coal-breaking teeth 31 and the bearing cover 200.

[0061] Specifically, the number of the third coal-breaking assemblies 3 is related to the number of the bearing caps 200. When the number of the bearing caps 200 is multiple, the number of the third coal-breaking assemblies 3 is multiple, and the multiple bearing caps 200 and the multiple third coal-breaking assemblies 3 are arranged in a one-to-one correspondence. In this embodiment, the number of the third coal-breaking assemblies 3 and the number of the bearing caps 200 are both set to two.

[0062] Optionally, one of the third coal-breaking tooth 31 and the bearing cover 200 is provided with a third positioning groove, and the other is provided with a third positioning block, and the third positioning block is plugged into the third positioning groove. This arrangement can limit the relative position of the third coal-breaking tooth 31 and the bearing cover 200, and facilitate the connection of the third coal-breaking tooth 31 to the bearing cover 200.

[0063] The utility model also provides an anchor miner, comprising the above-mentioned cutting gear box. By adopting the above-mentioned cutting gear box, the maintenance efficiency of the anchor miner can be effectively improved.

[0064] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A cutting gearbox, comprising a gearbox body and a coal-breaking tooth structure, wherein the gearbox body (100) is provided with an opening, and the opening is connected to the interior of the gearbox (100); characterized in that: The coal breaking tooth structure comprises a first coal breaking component (1), wherein the first coal breaking component (1) comprises a base cover plate (11) and a first coal breaking tooth (12) which are separately arranged; The base sealing plate (11) is detachably connected to the opening of the box body (100) and is capable of closing the opening; The first coal breaking teeth (12) are detachably connected to the base cover plate (11) and are distributed outside the box body (100).

2. The cutting gearbox according to claim 1, characterized in that: The first coal breaking assembly (1) further comprises a first connecting piece (13) and a second connecting piece (14); the first connecting piece (13) passes through the first coal breaking teeth (12) and is threadedly connected to the base cover plate (11); and the second connecting piece (14) passes through the base cover plate (11) and is threadedly connected to the box body (100).

3. The cutting gearbox according to claim 1, characterized in that: One of the base cover plate (11) and the first coal breaking tooth (12) is provided with a first positioning groove (111), and the other is provided with a first positioning block (121), and the first positioning block (121) is inserted into the first positioning groove (111).

4. The cutting gearbox according to claim 1, characterized in that: The base cover plate (11) is provided with a plug-in sealing portion (112), and the first coal breaking assembly (1) further comprises a sealing ring (15), the plug-in sealing portion (112) is plugged into the opening, and the sealing ring (15) is used to seal the gap between the outer peripheral wall of the plug-in sealing portion (112) and the inner peripheral wall of the opening.

5. The cutting gearbox according to claim 4, characterized in that: An annular sealing groove (1121) is recessed in one of the outer circumferential wall of the plug-in sealing portion (112) and the inner circumferential wall of the opening, and the sealing ring (15) is partially embedded in the annular sealing groove (1121), and the sealing ring (15) is tightly pressed against the other of the outer circumferential wall of the plug-in sealing portion (112) and the inner circumferential wall of the opening in the circumferential direction.

6. The cutting gearbox according to any one of claims 1 to 5, characterized in that: The coal breaking tooth structure further comprises a second coal breaking component (2), the second coal breaking component (2) comprises a second coal breaking tooth (21), and the second coal breaking tooth (21) is detachably connected to the outside of the box body (100); The tooth-shaped portion of the first coal-breaking tooth (12) and the tooth-shaped portion of the second coal-breaking tooth (21) are distributed on the same circumference.

7. The cutting gearbox according to claim 6, characterized in that: The second coal-breaking assembly (2) further comprises a third connecting piece (22), and the third connecting piece (22) passes through the second coal-breaking teeth (21) and is threadedly connected to the box body (100).

8. The cutting gearbox according to claim 6, characterized in that: The number of the second coal-breaking components (2) is plural, and the plurality of the second coal-breaking components (2) are distributed at intervals in the circumferential direction of the box body (100); The tooth-shaped parts of the plurality of second coal-breaking teeth (21) are distributed on the same circumference.

9. The cutting gearbox according to any one of claims 1 to 5, characterized in that: The cutting gear box further comprises a third coal-breaking assembly (3) and a bearing cover (200) detachably connected to the box body (100); the third coal-breaking assembly (3) comprises a third coal-breaking tooth (31); and the third coal-breaking tooth (31) is detachably connected to the bearing cover (200).

10. An anchor miner, characterized in that: A cutting gearbox comprising the cutting gearbox as described in any one of claims 1-9.

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