Cutting roller for digging and anchoring all-in-one machine

Abstract

The utility model relates to the technical field of coal mine roadway tunneling and mining machinery, in particular to a cutting roller for a tunneling and anchoring integrated machine. The cutting tooth device comprises a roller assembly and a plurality of cutting tooth assemblies, the roller assembly is provided with a first spiral line and a second spiral line, the first spiral line and the second spiral line extend from one end of the roller assembly to the other end of the roller assembly, and a gap is formed between the first spiral line and the second spiral line; the multiple cutting tooth assemblies are installed on the outer wall of the roller assembly at intervals along the first spiral line and the second spiral line correspondingly, and the vertical distance between the horizontal center line of the nth cutting tooth assembly on the first spiral line and the horizontal center line of the nth cutting tooth assembly on the second spiral line is the cutting tooth distance. The cutting capacity of the cutting roller is improved by changing the line cutting distance and increasing or decreasing the number of the cutting tooth assemblies, the rock breaking capacity of the cutting roller is improved, and the tunneling efficiency of the tunneling and anchoring all-in-one machine is improved.

Description

Technical Field

[0001] This utility model relates to the field of coal mine roadway excavation and mining machinery technology, and in particular to a cutting roller used in a tunneling and anchoring machine. Background Technology

[0002] The tunneling and anchoring integrated machine, also known as the tunneling and anchoring integrated machine or continuous coal mining anchor support unit, is a mining equipment that integrates tunneling and anchoring functions and is widely used in the rapid tunneling construction of coal mines and other mine roadways.

[0003] Currently, integrated roadheader-anchor machines are increasingly used in coal mine roadway excavation, where the cutting drum plays a role in breaking up coal. For ordinary coal seams, the cutting drum's coal-breaking capacity and efficiency meet the requirements.

[0004] However, during coal mining operations, it is common to encounter semi-coal-rock or even full-rock conditions. Semi-coal-rock refers to a mixture of coal and rock or coal interbedded with rock. Existing roadheader-anchor machines are unable to cut through semi-coal-rock or full-coal-rock conditions, resulting in poor coal breaking capacity and low tunneling efficiency. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In view of the above-mentioned shortcomings and deficiencies of the prior art, this utility model provides a cutting roller for a roadheader, which solves the technical problems of existing roadheaders being unable to cut semi-coal and rock and full coal and rock in working conditions, having poor coal breaking ability and low tunneling efficiency.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the main technical solution adopted by this utility model includes:

[0009] This utility model provides a cutting roller for a tunneling and anchoring machine, including a roller assembly and multiple cutting tooth assemblies; the roller assembly is provided with a first helix and a second helix, both extending from one end of the roller assembly to the other end, with a gap between the first helix and the second helix; the multiple cutting tooth assemblies are respectively installed at intervals along the first helix and the second helix on the outer wall of the roller assembly, and the vertical distance between the horizontal center lines of the nth cutting tooth assembly on the first helix and the nth cutting tooth assembly on the second helix is ​​the cutting tooth pitch, which ranges from 40mm to 70mm.

[0010] Preferably, the cutting tooth assembly includes a pad, a cutting tooth seat, a cutting tooth sleeve, and a cutting tooth body; the pad is fixedly installed on the outer wall of the roller assembly, the cutting tooth seat is fixedly installed on the side wall of the pad away from the roller assembly, the end of the cutting tooth seat away from the roller assembly is provided with an installation space, the cutting tooth sleeve is sleeved on the outer wall of the cutting tooth body, and both the cutting tooth sleeve and the cutting tooth body are installed within the installation space; the end of the cutting tooth body away from the cutting tooth seat is the cutting end.

[0011] Preferably, the cutting tooth sleeve is detachably connected to the cutting tooth body.

[0012] Preferably, the cutting tooth sleeve is interference-fitted with the mounting space.

[0013] Preferably, the outer wall of the cutting tooth holder is coated with a wear-resistant coating.

[0014] Preferably, it also includes a speed reducer unit; the roller assembly is provided in two sets, the two sets of roller assemblies are symmetrically arranged, and the two output ends of the speed reducer unit are respectively connected to the two sets of roller assemblies, so that the speed reducer unit can drive the two sets of roller assemblies to rotate simultaneously.

[0015] Preferably, the cutting roller further includes a mounting frame; the roller assembly includes an inner roller, a fixed cylinder, and a telescopic cylinder; the inner roller and the speed reducer are both located within the mounting frame, the speed reducer is connected to the inner wall of the mounting frame, the fixed cylinder is fixedly installed at one end of the mounting frame, the two ends of the inner roller are respectively connected to the output end of the speed reducer and the end of the fixed cylinder facing the speed reducer, and the telescopic cylinder is telescopically connected to the fixed cylinder; the telescopic cylinder can extend or retract towards or away from the fixed cylinder.

[0016] Preferably, the inner roller, the fixed cylinder, the telescopic cylinder, and the reducer are arranged coaxially.

[0017] Preferably, the telescopic cylinder includes a cylinder body and a telescopic assembly; one end of the cylinder body near the fixed cylinder is sleeved on the outer wall of the fixed cylinder at the end away from the inner roller; the telescopic assembly is placed inside the cylinder body; the protruding end of the telescopic assembly is connected to the end of the cylinder body away from the fixed cylinder; and the fixed end of the telescopic assembly is connected to the fixed cylinder; the telescopic assembly can drive the cylinder body to move along the axis of the cylinder body towards or away from the fixed cylinder.

[0018] Preferably, the telescopic assembly includes a telescopic cylinder and a hydraulic circuit; the fixed end of the telescopic cylinder is connected to the fixed cylinder, and the extended end of the telescopic cylinder is connected to the end of the cylinder away from the fixed cylinder; one end of the hydraulic circuit is connected to the reducer unit, and the other end of the hydraulic circuit passes through the inner roller and the fixed cylinder respectively and is connected to the telescopic cylinder to provide power to the telescopic cylinder.

[0019] (III) Beneficial Effects

[0020] The beneficial effects of this utility model are:

[0021] This invention features a first and second helix on a drum assembly, with multiple cutting tooth assemblies mounted along these helices. The distance between the nth cutting tooth assembly on the first helix and the nth cutting tooth assembly on the second helix is ​​set to 40mm-70mm. This allows for adjustment of the density of the cutting tooth assemblies on the drum assembly. Specifically, for the same cutting width, a smaller tooth distance results in more turns of the first and second helices, leading to a denser distribution of the cutting tooth assemblies on the drum assembly. Conversely, a larger tooth distance results in fewer turns of the first and second helices, resulting in a sparser distribution of the cutting tooth assemblies. Therefore, when working in semi-coal and full-rock conditions, the cutting capacity and rock-breaking ability of the cutting drum can be improved by changing the tooth distance and adjusting the number of cutting tooth assemblies, thereby increasing the tunneling efficiency of the roadheader. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of a cutting roller used in a tunneling and anchoring machine according to the present invention;

[0023] Figure 2 This is a front view of the disassembled roller assembly of a cutting roller used in a tunneling and anchoring machine according to the present invention.

[0024] Figure 3 This is a three-dimensional structural disassembly diagram of a cutting tooth assembly for a cutting roller used in a tunneling and anchoring machine according to the present invention.

[0025] Figure 4 This is a cross-sectional structural diagram of a telescopic cylinder for a cutting drum used in a tunneling and anchoring machine according to the present invention.

[0026] Figure 5 This is a schematic diagram of the unfolded structure of the inner roller of the cutting roller used in a tunneling and anchoring machine according to the present invention.

[0027] [Explanation of Labels in the Attached Image]

[0028] 1: Roller assembly; 11: Inner roller; 12: Fixed cylinder; 13: Telescopic cylinder; 131: Cylinder body; 132: Telescopic assembly; 1321: Telescopic cylinder; 1322: Hydraulic circuit; 2: Cutting tooth assembly; 21: Pad; 22: Cutting tooth seat; 221: Installation space; 23: Cutting tooth sleeve; 24: Cutting tooth body; 241: Cutting end; 3: First helix; 4: Second helix; 5: Reducer unit; 6: Mounting bracket; d: Cutting tooth pitch. Detailed Implementation

[0029] To better explain and facilitate understanding of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] Example 1

[0031] like Figures 1-5 As shown, a cutting roller for a tunneling and anchoring machine in this embodiment includes a roller assembly 1 and multiple cutting tooth assemblies 2.

[0032] Specifically, the roller assembly 1 is provided with a first helix 3 and a second helix 4, both extending from one end of the roller assembly 1 to the other end, with a gap between them. Multiple cutting tooth assemblies 2 are respectively installed at intervals along the first helix 3 and the second helix 4 on the outer wall of the roller assembly 1. The vertical distance between the horizontal centerlines of the nth cutting tooth assembly 2 on the first helix 3 and the nth cutting tooth assembly 2 on the second helix 4 is the cutting tooth pitch d, which ranges from 40mm to 70mm. By setting a first spiral 3 and a second spiral 4 on the drum assembly 1, multiple cutting tooth assemblies 2 are respectively installed on the drum assembly 1 along the first spiral 3 and the second spiral 4. The cut-off distance between the nth cutting tooth assembly 2 on the first spiral 3 and the nth cutting tooth assembly 2 on the second spiral 4 is set to a range of 40mm-70mm. This allows for changing the density of the cutting tooth assemblies 2 on the drum assembly 1. Specifically, under the same cutting width, a smaller cut-off distance d results in more turns of the first spiral 3 and the second spiral 4, leading to a denser distribution of the cutting tooth assemblies 2 on the drum assembly 1. Conversely, a larger cut-off distance d results in fewer turns of the first spiral 3 and the second spiral 4, leading to a sparser distribution of the cutting tooth assemblies 2 on the drum assembly 1. Therefore, when dealing with semi-coal and rock conditions and full-rock conditions, the cutting capacity of the cutting drum and its rock-breaking ability can be improved by changing the cut-off distance and increasing or decreasing the number of cutting tooth assemblies 2, thereby improving the tunneling efficiency of the roadheader. That is, when dealing with semi-coal and rock or full-rock conditions, the cutting distance can be appropriately reduced, and the arrangement density of the cutting tooth assembly 2 can be increased on the drum assembly 1 to improve the cutting capacity of the cutting drum and reduce vibration during cutting.

[0033] Furthermore, the cutting tooth assembly 2 includes a pad 21, a cutting tooth seat 22, a cutting tooth sleeve 23, and a cutting tooth body 24. The pad 21 is fixedly installed on the outer wall of the drum assembly 1, and the cutting tooth seat 22 is fixedly installed on the side wall of the pad 21 away from the drum assembly 1. An installation space 221 is provided at the end of the cutting tooth seat 22 away from the drum assembly 1. The cutting tooth sleeve 23 is fitted onto the outer wall of the cutting tooth body 24. Both the cutting tooth sleeve 23 and the cutting tooth body 24 are installed within the installation space 221, which makes the installation of the cutting tooth body 24 more stable. This makes the cutting tooth assembly 2 more stable and reliable when cutting coal, preventing the cutting tooth assembly 2 from falling off. It also adapts to the working conditions of the roadway, allowing the cutting tooth body 24 to cut the coal wall more stably. The end of the cutting tooth body 24 away from the cutting tooth seat 22 is the cutting end 241. Preferably, the cutting tooth sleeve 23 is interference-fitted with the installation space 221, which makes the connection between the cutting tooth sleeve 23 and the cutting tooth seat 22 more stable, improves the bonding strength between the cutting tooth sleeve 23 and the cutting tooth seat 22, and prevents loosening between the cutting tooth sleeve 23 and the cutting tooth seat 22.

[0034] Furthermore, the cutting tooth sleeve 23 is detachably connected to the cutting tooth body 24, which enables quick replacement of the cutting tooth body 24. When the cutting tooth body 24 is damaged, it can be quickly replaced, improving disassembly and assembly efficiency and work efficiency, and saving time.

[0035] Furthermore, a wear-resistant coating is applied to the outer wall of the cutting tooth holder 22, which can improve the overall wear resistance of the cutting tooth assembly 2 and extend its service life. Moreover, as the main body of the cutting tooth assembly 2, the cutting tooth holder 22 has a larger volume than the cutting tooth holder 22 in the prior art. By applying a wear-resistant coating, the cutting tooth holder 22 becomes more wear-resistant and durable, improving the stability of the cutting tooth assembly 2, preventing damage to the cutting tooth assembly 2, and extending its service life.

[0036] Furthermore, the cutting roller in this embodiment for a roadheader-anchor machine also includes a reducer unit 5. The roller assembly 1 consists of two sets, symmetrically arranged. The two output ends of the reducer unit 5 are connected to the two sets of roller assemblies 1 respectively, enabling the reducer unit 5 to simultaneously drive the two sets of roller assemblies 1 to rotate. By setting the reducer unit 5 and the symmetrically arranged two sets of roller assemblies 1, the roadheader-anchor machine can achieve synchronous rotation of the two cutting rollers within the same time, improving cutting efficiency and saving time.

[0037] Furthermore, the cutting drum also includes a mounting frame 6. The drum assembly 1 includes an inner drum 11, a fixed cylinder 12, and a telescopic cylinder 13. The inner drum 11 and the reducer unit 5 are both located within the mounting frame 6. The reducer unit 5 is connected to the inner wall of the mounting frame 6. The fixed cylinder 12 is fixedly installed at one end of the mounting frame 6. The two ends of the inner drum 11 are respectively connected to the output end of the reducer unit 5 and the end of the fixed cylinder 12 facing the reducer unit 5. The telescopic cylinder 13 is telescopically connected to the fixed cylinder 12. The telescopic cylinder 13 can extend or retract towards or away from the fixed cylinder 12, which can lengthen the length of the drum assembly 1, allowing it to extend the cutting length when excavating in long tunnels and improve work efficiency. Preferably, the inner drum 11, fixed cylinder 12, telescopic cylinder 13, and reducer unit 5 are coaxially arranged, which ensures that power is directly and efficiently transmitted from the reducer unit 5 to the drum assembly 1, reducing energy loss, improving transmission efficiency, and making the drum assembly 1 more energy-efficient and efficient during operation.

[0038] Furthermore, the telescopic cylinder 13 includes a cylinder body 131 and a telescopic assembly 132.

[0039] Specifically, the end of the cylinder 131 near the fixed cylinder 12 is fitted onto the outer wall of the end of the fixed cylinder 12 away from the inner roller 11. The telescopic assembly 132 is placed inside the cylinder 131, which can prevent the telescopic assembly 132 from colliding with the coal wall or other equipment and avoid damage to the telescopic assembly 132. The protruding end of the telescopic assembly 132 is connected to the end of the cylinder 131 away from the fixed cylinder 12, and the fixed end of the telescopic assembly 132 is connected to the fixed cylinder 12. The telescopic assembly 132 can drive the cylinder 131 to move along the axis of the cylinder 131 towards or away from the fixed cylinder 12, so that the telescopic cylinder 13 can flexibly adjust the length of the roller assembly 1 according to the actual working conditions, so as to cut longer roadways, improve work efficiency and adaptability. By setting the cylinder 131 to an external telescopic form, not only is the extension length of the roller assembly 1 longer and the connection better, but the cutting tooth assembly 2 at the end furthest from the fixed cylinder 12 can also be flatter and arranged more rationally. With a more rational arrangement, no notches are needed at the end of the cylinder 131, and the cutting tooth assembly 2 can be arranged in a complete circle at the end of the cylinder 131. This allows for better grooving at the end of the cylinder 131 during cutting, improving the stress distribution on both sides of the two sets of roller assemblies 1. Compared to the internal telescopic form, the external telescopic form only requires two notches to avoid the cutting tooth seat 22 on the inner side of the cylinder 131, resulting in a relatively smaller number of notches to ensure the strength of the roller assembly 1.

[0040] More specifically, the telescopic assembly 132 includes a telescopic cylinder 1321 and a hydraulic circuit 1322. The fixed end of the telescopic cylinder 1321 is connected to the fixed cylinder 12, and the extended end of the telescopic cylinder 1321 is connected to the end of the cylinder 131 away from the fixed cylinder 12. One end of the hydraulic circuit 1322 is connected to the reducer unit 5, and the other end of the hydraulic circuit 1322 passes through the inner roller 11 and the fixed cylinder 12 respectively and is connected to the telescopic cylinder 1321 to provide power to the telescopic cylinder 1321. By setting the telescopic cylinder 1321 and the hydraulic circuit 1322, the telescopic cylinder 13 can achieve precise hydraulic drive to provide stable power output, ensuring that the cylinder 131 extends or retracts accurately when needed, thereby realizing the adjustment of cutting depth and position.

[0041] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0042] 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 connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; 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. 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.

[0043] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "beneath" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0044] In the description of this specification, the terms "one embodiment," "some embodiments," "embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. 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. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0045] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, alterations, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A cutting roller for use in a tunneling and anchoring machine, characterized in that, It includes a roller assembly (1) and multiple cutting tooth assemblies (2); The roller assembly (1) is provided with a first spiral (3) and a second spiral (4), both the first spiral (3) and the second spiral (4) extending from one end of the roller assembly (1) to the other end of the roller assembly (1), and there is a gap between the first spiral (3) and the second spiral (4); The plurality of cutting tooth assemblies (2) are respectively installed on the outer wall of the roller assembly (1) at intervals along the first spiral line (3) and the second spiral line (4). The vertical distance between the horizontal center lines of the nth cutting tooth assembly (2) on the first spiral line (3) and the nth cutting tooth assembly (2) on the second spiral line (4) is the cutting tooth pitch (d), and the cutting tooth pitch (d) ranges from 40mm to 70mm.

2. A cutting roller for a tunneling and anchoring machine as described in claim 1, characterized in that: The cutting tooth assembly (2) includes a pad (21), a cutting tooth seat (22), a cutting tooth sleeve (23), and a cutting tooth body (24); The pad (21) is fixedly installed on the outer wall of the roller assembly (1), the cutting tooth seat (22) is fixedly installed on the side wall of the pad (21) away from the roller assembly (1), the end of the cutting tooth seat (22) away from the roller assembly (1) is provided with an installation space (221), the cutting tooth sleeve (23) is sleeved on the outer wall of the cutting tooth body (24), and both the cutting tooth sleeve (23) and the cutting tooth body (24) are installed in the installation space (221); The end of the cutting tooth body (24) away from the cutting tooth seat (22) is the cutting end (241).

3. A cutting roller for a tunneling and anchoring machine as described in claim 2, characterized in that: The cutting tooth sleeve (23) is detachably connected to the cutting tooth body (24).

4. A cutting roller for a tunneling and anchoring machine as described in claim 2, characterized in that: The cutting tooth sleeve (23) is interference-fitted with the mounting space (221).

5. A cutting roller for a tunneling and anchoring machine as described in claim 2, characterized in that: The outer wall of the cutting tooth holder (22) is coated with a wear-resistant coating.

6. A cutting roller for a tunneling and anchoring machine as described in claim 1, characterized in that: It also includes a speed reducer unit (5); The roller assembly (1) is provided in two sets, and the two sets of roller assemblies (1) are arranged symmetrically. The two output ends of the reducer assembly (5) are respectively connected to the two sets of roller assemblies (1) so that the reducer assembly (5) can drive the two sets of roller assemblies (1) to rotate simultaneously.

7. A cutting roller for a tunneling and anchoring machine as described in claim 6, characterized in that: The cutting roller also includes a mounting bracket (6); The roller assembly (1) includes an inner roller (11), a fixed cylinder (12), and a telescopic cylinder (13); The inner roller (11) and the reducer assembly (5) are both located inside the mounting frame (6). The reducer assembly (5) is connected to the inner wall of the mounting frame (6). The fixed cylinder (12) is fixedly installed at one end of the mounting frame (6). The two ends of the inner roller (11) are respectively connected to the output end of the reducer assembly (5) and the end of the fixed cylinder (12) facing the reducer assembly (5). The telescopic cylinder (13) is telescopically connected to the fixed cylinder (12). The telescopic cylinder (13) can extend or retract in a direction closer to or further away from the fixed cylinder.

8. A cutting roller for a tunneling and anchoring machine as described in claim 7, characterized in that: The inner roller (11), the fixed cylinder (12), the telescopic cylinder (13), and the reducer unit (5) are coaxially arranged.

9. A cutting roller for a tunneling and anchoring machine as described in claim 7, characterized in that: The telescopic cylinder (13) includes a cylinder body (131) and a telescopic assembly (132); The end of the cylindrical body (131) near the fixed cylinder (12) is sleeved on the outer wall of the fixed cylinder (12) away from the inner roller (11). The telescopic component (132) is placed inside the cylindrical body (131). The protruding end of the telescopic component (132) is connected to the end of the cylindrical body (131) away from the fixed cylinder (12). The fixed end of the telescopic component (132) is connected to the fixed cylinder (12). The telescopic component (132) can drive the cylinder (131) to move along the axis of the cylinder (131) toward or away from the fixed cylinder (12).

10. A cutting roller for a tunneling and anchoring machine as described in claim 9, characterized in that: The telescopic assembly (132) includes a telescopic cylinder (1321) and a hydraulic circuit (1322); The fixed end of the telescopic cylinder (1321) is connected to the fixed cylinder (12), and the extended end of the telescopic cylinder (1321) is connected to the end of the cylinder (131) away from the fixed cylinder (12). One end of the hydraulic circuit (1322) is connected to the reducer unit (5), and the other end of the hydraulic circuit (1322) passes through the inner roller (11) and the fixed cylinder (12) respectively and is connected to the telescopic cylinder (1321) to provide power to the telescopic cylinder (1321).

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