Bolt miner cutting gearbox coal breaking mechanism and bolter miner cutting gearbox

Abstract

The utility model provides a coal breaking mechanism of a cutting gear box of a miner-bolter and the cutting gear box of the miner-bolter, and relates to the field of gear boxes. The coal breaking mechanism of the cutting gear box of the bolter miner comprises a box body and communication type coal breaking teeth, each communication type coal breaking tooth comprises a first tooth section, a communication tooth section and a second tooth section which are sequentially connected, and the first tooth sections, the communication tooth sections and the second tooth sections are all fixedly connected with the surface of the box body; the communicating type coal breaking tooth is provided with an avoiding groove for avoiding a bolt installed on the box body, and the avoiding groove is located between the first tooth section and the second tooth section. The coal breaking tooth mechanism is large in coal breaking area and high in coal breaking efficiency.

Description

Technical Field

[0001] The utility model relates to the field of gear boxes, in particular to a coal breaking mechanism of a cutting gear box of a bolter and a cutting gear box of a bolter. Background Art

[0002] At present, with the development of integrated digging and anchoring machines, they have been promoted and applied in coal mine tunnel excavation construction, and the mechanization level of tunnel excavation has been greatly improved. The digging and anchoring unit can realize the simultaneous construction of digging and anchoring, effectively improve the problem of digging and anchoring separation in tunnel comprehensive excavation construction, and greatly improve the speed of tunnel excavation. When the digging and anchoring machine is in operation, in order to prevent the gearbox from directly colliding with large hard solids, it is necessary to install coal breaking teeth at certain parts of the gearbox. However, due to the peculiar structure of the gearbox, small coal breaking teeth are generally used, and multiple small coal breaking teeth are arranged at intervals, with a small distribution area, resulting in low coal breaking efficiency of the coal breaking teeth. Utility Model Content

[0003] The utility model aims to provide a coal breaking mechanism of a cutting gear box of an anchor digger and a cutting gear box of the anchor digger, which can increase the coal breaking area of ​​coal breaking teeth and improve the coal breaking efficiency.

[0004] The embodiment of the utility model is achieved as follows:

[0005] In a first aspect, the utility model provides a coal breaking mechanism of a cutting gear box of an anchor miner, comprising:

[0006] A box body and a connected coal-breaking tooth, the connected coal-breaking tooth comprising a first tooth segment, a connected tooth segment and a second tooth segment connected in sequence, the first tooth segment, the connected tooth segment and the second tooth segment are all fixedly connected to the surface of the box body; the connected coal-breaking tooth is provided with an avoidance groove for avoiding bolts installed on the box body, and the avoidance groove is located between the first tooth segment and the second tooth segment.

[0007] In an optional embodiment, the first tooth segment has a first mounting surface and a first circular arc tooth surface that are relatively arranged, and the distance between the first mounting surface and the first circular arc tooth surface gradually increases in the direction from the first tooth segment to the connected tooth segment, and the first mounting surface is in contact with the outer surface of the box body; a plurality of first teeth are arranged on the first circular arc tooth surface.

[0008] Based on the above scheme, by setting the first mounting surface and the first arc tooth surface as a structure in which the distance gradually changes, the first mounting surface can be adapted to the outer surface of the box body, so that the first mounting surface is in contact with the outer surface as much as possible, thereby increasing the contact area between the first mounting surface and the outer surface of the box body, and improving the stability and firmness of the combination of the two.

[0009] In an optional embodiment, the second tooth segment has a second mounting surface and a second arc tooth surface that are oppositely arranged, the distance between the second mounting surface and the second arc tooth surface is equal everywhere in the circumferential direction of the second arc tooth surface, the second mounting surface is in contact with the outer surface of the box body, and a plurality of second teeth are arranged on the second arc tooth surface.

[0010] Based on the above solution, the second mounting surface can be adapted to the outer surface of the box, thereby ensuring that the second mounting surface fits the outer surface as much as possible, increasing the contact area between the second mounting surface and the outer surface, and improving the stability and firmness of the combination of the two.

[0011] In an optional embodiment, the axis of the circle where the first circular arc tooth surface is located is coaxially arranged with the axis of the circle where the second circular arc tooth surface is located.

[0012] Based on the above solution, the first tooth segment, the connecting tooth segment and the second tooth segment can all be processed with reference to the same reference, with low processing difficulty and high processing efficiency.

[0013] In an optional embodiment, the first tooth segment has a first end face, the second tooth segment has a second end face, both ends of the connecting tooth segment are respectively connected to the first end face and the second end face, and the first end face, the inner side surface of the connecting tooth segment and the second end face cooperate to define the avoidance groove.

[0014] Based on the above solution, the length of the avoidance groove is basically consistent with the length of the connecting tooth segment, and the avoidance space is larger, which further reduces the probability of interference between the connecting tooth segment and the bolts on the box body and improves the quality of installation.

[0015] In an optional embodiment, the first end surface and the inner side surface are configured to be in a cambered transition, or the second end surface and the inner side surface are configured to be in a cambered transition.

[0016] Based on the above solution, the connection position between the first tooth segment and the connecting tooth segment is not prone to stress concentration, cracking or disconnection, and has a long service life. Similarly, the connection position between the second tooth segment and the connecting tooth segment is not prone to stress concentration, cracking or disconnection, and has a long service life.

[0017] In an optional embodiment, the first tooth segment, the connecting tooth segment and the second tooth segment are configured as an integrated structure.

[0018] Based on the above solution, the interconnected coal breaking teeth have high structural strength, are not easily damaged during use, and have a long service life.

[0019] In an optional embodiment, the first tooth segment, the connecting tooth segment and the second tooth segment are all welded and fixed to the box body.

[0020] Based on the above scheme, the installation process of the connected coal breaking teeth and the box body is simple and reliable, the combination of the two is firm, and the service life is long.

[0021] In an optional embodiment, an outer surface of the box body is provided with a marking line, and the sides of the connected coal breaking teeth are aligned with the marking line.

[0022] Based on the above scheme, by setting an identification line, when the connected coal breaking teeth are connected to the box body, the connected coal breaking teeth can use the identification line as a reference to quickly position the connected coal breaking teeth on the box body, thereby improving the accuracy of the position of the connected coal breaking teeth, thereby improving assembly efficiency and assembly quality.

[0023] In a second aspect, the utility model provides a cutting gear box for an anchor miner, the cutting gear box for an anchor miner comprising:

[0024] The coal breaking mechanism of the cutting gear box of the bolter miner according to any one of the aforementioned embodiments.

[0025] The beneficial effects of the embodiments of the utility model are:

[0026] To sum up, the coal-breaking mechanism of the cutting gear box of the anchor miner provided in the present embodiment has connecting type coal-breaking teeth installed on the surface of the box body, and the connecting type coal-breaking teeth are provided with avoidance grooves. When the connecting type coal-breaking teeth are installed on the box body, the position of the bolts on the box body can be effectively avoided by the design of the avoidance grooves. In this way, under the premise of ensuring that the connecting type coal-breaking teeth and the box body can be correctly assembled, the position corresponding to the bolt on the box body is also covered by the connecting tooth segment. The connecting type coal-breaking teeth cover a large area, the connecting type coal-breaking teeth have a high coal-breaking efficiency, and the protection effect on the box body is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 A schematic diagram of a coal breaking mechanism of a cutting gear box of a bolter miner according to an embodiment of the utility model from one perspective;

[0029] Figure 2 A schematic diagram of the coal breaking mechanism of the cutting gear box of the bolter miner according to an embodiment of the utility model from another perspective;

[0030] Figure 3 A schematic diagram of a connected type coal breaking tooth from one perspective of an embodiment of the utility model;

[0031] Figure 4 It is a schematic diagram of another viewing angle of the connected coal breaking teeth according to an embodiment of the utility model.

[0032] icon:

[0033] 100-housing; 101-fixed area; 200-connected coal-breaking tooth; 210-first tooth segment; 211-first mounting surface; 212-first circular arc tooth surface; 213-first end surface; 220-connected tooth segment; 230-second tooth segment; 231-second mounting surface; 232-second circular arc tooth surface; 233-second end surface; 240-avoidance groove. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0035] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0037] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0038] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0039] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In the prior art, when the anchor miner is in operation, in order to prevent the gearbox from directly colliding with a large hard solid, a coal breaking tooth is installed outside the gearbox housing 100. Since bolts are installed at some positions on the housing 100, in order to avoid interference between the coal breaking tooth and the bolts, the coal breaking tooth is set as two independent tooth structures, and the two tooth structures are separated by the bolts on the housing 100. In this way, the area covered by the coal breaking tooth on the housing 100 is small, and the coal breaking efficiency is low.

[0041] In view of this, the designer provides a coal breaking mechanism for a cutting gear box of an anchor miner, which can increase the coal breaking area, thereby improving the coal breaking efficiency and improving the protection effect of the box body 100.

[0042] Please combine Figure 1 and Figure 2 In this embodiment, the coal-breaking mechanism of the cutting gear box of the bolter mining machine includes a box body 100 and a connected coal-breaking tooth 200. The connected coal-breaking tooth 200 includes a first tooth segment 210, a connected tooth segment 220 and a second tooth segment 230 connected in sequence. The first tooth segment 210, the connected tooth segment 220 and the second tooth segment 230 are all fixedly connected to the surface of the box body 100. The connected coal-breaking tooth 200 is provided with an avoidance groove 240 for avoiding bolts installed on the box body 100, and the avoidance groove 240 is located between the first tooth segment 210 and the second tooth segment 230.

[0043] As described above, the working principle of the coal breaking mechanism of the cutting gear box of the bolter miner provided in this embodiment is as follows:

[0044] A connecting type coal breaking tooth 200 is installed on the surface of the box body 100, and an avoidance groove 240 is arranged on the connecting type coal breaking tooth 200. When the connecting type coal breaking tooth 200 is installed on the box body 100, the design of the avoidance groove 240 can effectively avoid the position of the bolts on the box body 100. In this way, under the premise of ensuring that the connecting type coal breaking tooth 200 and the box body 100 can be correctly assembled, the position corresponding to the bolt on the box body 100 is also covered by the connecting tooth segment 220. The connecting type coal breaking tooth 200 covers a large area, the connecting type coal breaking tooth 200 has a high coal breaking efficiency, and the protection effect on the box body 100 is good.

[0045] That is to say, in order to assemble the box body 100 with other components, a fixing area 101 needs to be set up, and the bolts are passed through the fixing area 101, so that the bolts are protruding from the fixing area 101. When installing the connecting type coal breaking tooth 200, the avoidance groove 240 just corresponds to the fixing area 101, and can accommodate the protruding bolts to avoid interference.

[0046] The following embodiments illustrate the details of the coal breaking mechanism of the cutting gear box of the bolter miner provided in the present application by way of examples.

[0047] Please combine Figure 3 and Figure 4 In this embodiment, optionally, the first tooth segment 210 has a first mounting surface 211 and a first circular arc tooth surface 212 that are arranged opposite to each other, and the distance between the first mounting surface 211 and the first circular arc tooth surface 212 gradually increases in the direction from the first tooth segment 210 to the connecting tooth segment 220, and the first mounting surface 211 is in contact with the outer surface of the housing 100; a plurality of first teeth are arranged on the first circular arc tooth surface 212. By setting the first mounting surface 211 and the first circular arc tooth surface 212 as a structure in which the distance gradually changes, the first mounting surface 211 can be adapted to the outer surface of the housing 100, so that the first mounting surface 211 is in contact with the outer surface as much as possible, and the contact area between the first mounting surface 211 and the outer surface of the housing 100 is increased, thereby improving the stability and firmness of the combination of the two.

[0048] It should be understood that the first tooth body is integrally formed on the first arc tooth surface 212 , and has high structural strength and long service life.

[0049] In this embodiment, optionally, the second tooth segment 230 has a second mounting surface 231 and a second arc tooth surface 232 that are arranged opposite to each other, the distance between the second mounting surface 231 and the second arc tooth surface 232 is equal everywhere in the circumferential direction of the second arc tooth surface 232, the second mounting surface 231 fits with the outer surface of the housing 100, and a plurality of second teeth are arranged on the second arc tooth surface 232. The second mounting surface 231 can fit with the outer surface of the housing 100, thereby ensuring that the second mounting surface 231 fits with the outer surface as much as possible, increasing the contact area between the second mounting surface 231 and the outer surface, and improving the stability and firmness of the combination of the two.

[0050] It should be understood that the second tooth body is integrally formed on the second arc tooth surface 232 , and has high structural strength and long service life.

[0051] It should be noted that the axis of the circle where the first arc tooth surface 212 is located is coaxially arranged with the axis of the circle where the second arc tooth surface 232 is located. The first tooth segment 210, the connecting tooth segment 220 and the second tooth segment 230 can all be processed with reference to the same reference, which has low processing difficulty and high processing efficiency.

[0052] In this embodiment, optionally, the first tooth segment 210 has a first end face 213, the second tooth segment 230 has a second end face 233, and the two ends of the connecting tooth segment 220 are respectively connected to the first end face 213 and the second end face 233, and the first end face 213, the inner side face of the connecting tooth segment 220, and the second end face 233 cooperate to define an avoidance groove 240. The length of the avoidance groove 240 is substantially consistent with the length of the connecting tooth segment 220, and the avoidance space is larger, which further reduces the probability of interference between the connecting tooth segment 220 and the bolts on the box body 100, and improves the quality of installation.

[0053] Further, the first end face 213 and the inner side face are configured to be an camber transition, or the second end face 233 and the inner side face are configured to be an camber transition. For example, in this embodiment, the first end face 213 and the inner side face are configured to be an camber transition, and at the same time, the second end face 233 and the inner side face are configured to be an camber transition, so that the connection position between the first tooth segment 210 and the connecting tooth segment 220 is not prone to stress concentration, cracking or disconnection, and has a long service life. Similarly, the connection position between the second tooth segment 230 and the connecting tooth segment 220 is not prone to stress concentration, cracking or disconnection, and has a long service life.

[0054] It should be noted that the first tooth segment 210, the connecting tooth segment 220 and the second tooth segment 230 are set as an integrated structure. The connecting type coal breaking tooth 200 has high structural strength, is not easily damaged during use, and has a long service life.

[0055] It should be noted that the first tooth segment 210, the connecting tooth segment 220 and the second tooth segment 230 are all welded and fixed to the box body 100. The installation process of the connecting type coal breaking tooth 200 and the box body 100 is simple and reliable, the combination of the two is firm, and the service life is long.

[0056] Optionally, the outer surface of the box body 100 is provided with an identification line, and the side of the connected type coal breaking tooth 200 is aligned with the identification line. By setting the identification line, when the connected type coal breaking tooth 200 is connected to the box body 100, the connected type coal breaking tooth 200 uses the identification line as a reference, and can quickly realize the positioning of the connected type coal breaking tooth 200 on the box body 100, thereby improving the accuracy of the position of the connected type coal breaking tooth 200, thereby improving the assembly efficiency and the assembly quality. When the side of the connected type coal breaking tooth 200 is aligned with the identification line, the connected type coal breaking tooth 200 can be welded to the box body 100 on both sides to improve the welding quality and the firmness of the connection.

[0057] The coal breaking mechanism of the cutting gear box of the bolter miner provided in this embodiment provides an avoidance groove 240 so that the connected coal breaking teeth 200 can cover the position of the bolts on the box body 100, so that the position of the bolts can also perform coal breaking, resulting in a large coal breaking area and high coal breaking efficiency.

[0058] The present embodiment further provides a cutting gear box for an anchor miner, which includes a coal breaking mechanism for the cutting gear box for the anchor miner, and has the advantages of high coal breaking efficiency.

[0059] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A coal breaking mechanism of a cutting gear box of a bolter digging machine, characterized in that: include: A casing (100) and a connected coal-breaking tooth (200), wherein the connected coal-breaking tooth (200) comprises a first tooth segment (210), a connected tooth segment (220) and a second tooth segment (230) which are connected in sequence, wherein the first tooth segment (210), the connected tooth segment (220) and the second tooth segment (230) are all fixedly connected to the surface of the casing (100); the connected coal-breaking tooth (200) is provided with an avoidance groove (240) for avoiding a bolt installed on the casing (100), and the avoidance groove (240) is located between the first tooth segment (210) and the second tooth segment (230).

2. The coal breaking mechanism of the cutting gear box of the bolter digger according to claim 1, characterized in that: The first tooth segment (210) comprises a first mounting surface (211) and a first circular arc tooth surface (212) which are arranged opposite to each other; the distance between the first mounting surface (211) and the first circular arc tooth surface (212) gradually increases in a direction from the first tooth segment (210) to the connecting tooth segment (220); the first mounting surface (211) is in contact with the outer surface of the housing (100); and a plurality of first teeth are arranged on the first circular arc tooth surface (212).

3. The coal breaking mechanism of the cutting gear box of the bolter digging machine according to claim 2, characterized in that: The second tooth segment (230) comprises a second mounting surface (231) and a second circular arc tooth surface (232) which are arranged opposite to each other, the distance between the second mounting surface (231) and the second circular arc tooth surface (232) being equal everywhere in the circumferential direction of the second circular arc tooth surface (232), the second mounting surface (231) being in contact with the outer surface of the housing (100), and a plurality of second teeth being arranged on the second circular arc tooth surface (232).

4. The coal breaking mechanism of the cutting gear box of the bolter digging machine according to claim 3 is characterized by: The axis of the circle where the first circular arc tooth surface (212) is located is coaxially arranged with the axis of the circle where the second circular arc tooth surface (232) is located.

5. The coal breaking mechanism of the cutting gear box of the bolter digger according to claim 1, characterized in that: The first tooth segment (210) has a first end surface (213), the second tooth segment (230) has a second end surface (233), the two ends of the connecting tooth segment (220) are respectively connected to the first end surface (213) and the second end surface (233), and the first end surface (213), the inner side surface of the connecting tooth segment (220) and the second end surface (233) cooperate to define the avoidance groove (240).

6. The coal breaking mechanism of the cutting gear box of the bolter digger according to claim 5, characterized in that: The first end surface (213) and the inner side surface are configured to form a cambered transition, or the second end surface (233) and the inner side surface are configured to form a cambered transition.

7. The coal breaking mechanism of the cutting gear box of the bolter digger according to claim 1, characterized in that: The first tooth segment (210), the connecting tooth segment (220) and the second tooth segment (230) are arranged as an integrated structure.

8. The coal breaking mechanism of the cutting gear box of the bolter digger according to claim 1, characterized in that: The first tooth segment (210), the connecting tooth segment (220) and the second tooth segment (230) are all welded and fixed to the box body (100).

9. The coal breaking mechanism of the cutting gear box of the bolter digger according to claim 8, characterized in that: The outer surface of the box body (100) is provided with a marking line, and the side of the communicating coal breaking tooth (200) is aligned with the marking line.

10. A cutting gearbox for bolter miner, characterized in that: The bolter cutting gearbox comprises: The coal breaking mechanism of the cutting gear box of the bolter miner according to any one of claims 1 to 9.

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