Wear-resistant cutter mounting seat for coal mine heading machine

Abstract

The utility model discloses a wear-resistant cutter mounting seat for a coal mine heading machine, which relates to the technical field of coal mine heading machines and comprises a mounting seat body, a connecting column fixedly arranged on one side of the mounting seat body, a cutter arranged on one side of the connecting column, a mounting groove formed in one side of the connecting column, and a threaded groove formed in the inner wall of one side of the mounting groove. The inner wall of the threaded groove is connected with a threaded rod through threads, one end of the threaded rod is fixedly provided with a high-frequency sensor, the circumferential inner wall of the mounting groove is provided with an inclined waveguide hole, a waveguide rod is inserted into the inner wall of the waveguide hole, one end of the waveguide rod is fixedly arranged with the high-frequency sensor, and the other end of the waveguide rod is in contact with the cutter. According to the utility model, the high-frequency sensor can be used for monitoring and capturing the cracking stress wave of the cutter in real time, and when the cracking stress wave of the cutter is monitored, the cutter is quickly closed, so that the base associated damage caused by the cracking of the cutter is effectively avoided.

Description

Technical Field

[0001] This utility model relates to the field of coal mine tunneling machine technology, and in particular to a wear-resistant tool mounting base for coal mine tunneling machines. Background Technology

[0002] A tunneling machine is a machine used to excavate tunnels in flat ground. The tunneling machine breaks up the rock and soil by rotating cutting tools, and the excavated soil is transported out by a screw conveyor or belt conveyor. The propulsion system provides forward power, and at the same time, it is equipped with segment or anchor bolt support to realize the integrated continuous operation of tunnel excavation, muck removal and support. The tunneling machine cutting tools are usually mounted on the cutting tool mounting seat.

[0003] Currently, the wear-resistant cutters of existing coal mine tunneling machines are usually fixed to the cutter mounting base with bolts, and the mounting base and wear-resistant cutters are driven to rotate by a drive mechanism to complete the tunneling operation.

[0004] However, similar to the wear-resistant tool mounting base for coal mine tunneling machines mentioned above, it is impossible to monitor the tools in real time during use, making it difficult to detect tool wear and breakage in a timely manner, which in turn leads to damage to the base. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a wear-resistant tool mounting base for coal mine tunneling machines.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A wear-resistant tool mounting base for a coal mine tunneling machine includes a mounting base body. A connecting column is fixedly mounted on one side of the mounting base body, and a tool is mounted on one side of the connecting column. A mounting groove is formed on one side of the connecting column, and a threaded groove is formed on the inner wall of one side of the mounting groove. A threaded rod is threadedly connected to the inner wall of the threaded groove, and a high-frequency sensor is fixedly mounted on one end of the threaded rod. An inclined waveguide hole is formed on the inner circumference of the mounting groove, and a waveguide rod is inserted into the inner wall of the waveguide hole. One end of the waveguide rod is fixedly mounted to the high-frequency sensor, and the other end of the waveguide rod is in contact with the tool.

[0008] The present invention is further configured such that a limiting piece is sleeved on the outer wall of the threaded rod, and a fastening spring is fixedly provided between the limiting piece and the threaded rod.

[0009] The present invention is further configured such that the waveguide hole is filled with a coupling agent, and the inner circumferential wall of the mounting groove is provided with a copper plating layer.

[0010] The present invention is further provided that one end of the inner circumference of the mounting groove is provided with a thread, and a dust cover is connected to the inner wall of the mounting groove by the thread.

[0011] The present invention is further provided that a sealing ring is provided between the dust cover and the mounting groove, and a gasket is provided on the outer wall of the dust cover.

[0012] The present invention is further configured such that a plurality of mounting slots arranged in a circular array are provided on one side of the connecting column, mounting plates are inserted into the inner wall of the mounting slots, limiting grooves are provided on the side of the plurality of mounting plates that are close to each other, and connecting ports are provided on the side of the mounting slots that are close to each other. A limiting block adapted to the limiting groove is slidably provided on the inner wall of the connecting port.

[0013] The present invention is further configured such that one side of the limiting block is inclined, an installation cavity is provided inside the connecting column, a hydraulic cylinder is fixedly provided on one side inner wall of the installation cavity, a connecting plate is fixedly provided on the piston end of the hydraulic cylinder, a plurality of push rods are fixedly provided on one side of the connecting plate, a movable hole is provided on one side of the installation cavity, the push rod passes through the movable hole, and one end of the push rod is slidably disposed between the limiting block and the limiting block.

[0014] The present invention is further configured such that the inclined surface of the limiting block is provided with a sliding groove, the inner wall of the sliding groove is slidably connected to a slider, and the slider is fixedly connected to the push rod.

[0015] The beneficial effects of this utility model are as follows:

[0016] 1. The wear-resistant tool mounting base for this coal mine tunneling machine is designed so that, before the tunneling machine is used, a high-frequency sensor is screwed into the mounting groove using a threaded rod, and a waveguide rod is inserted into the waveguide hole, so that one end of the waveguide rod is fixed to the high-frequency sensor and the other end is in contact with the tool. When the tool is working, the high-frequency sensor monitors and captures the stress wave of tool breakage in real time. When the stress wave of tool breakage is detected, the tool is quickly shut down, effectively avoiding damage to the base caused by tool breakage.

[0017] 2. The wear-resistant tool mounting base of this coal mine tunneling machine effectively protects the high-frequency sensor from dust, water, and oil penetration through a dust cover, sealing ring, and gasket, preventing damage to the high-frequency sensor and increasing its service life.

[0018] 3. The wear-resistant tool mounting base for this coal mine tunneling machine allows for tool installation by first inserting the mounting plate on the tool into the corresponding mounting slot. Then, the connecting plate is moved by the hydraulic cylinder, which in turn drives the push rod. Under the action of the slider and the slide groove, and with the action of the inclined surface of the limiting block, the push rod drives the limiting block into the limiting groove, thereby effectively limiting and fixing the mounting plate. For disassembly, the hydraulic cylinder moves in the reverse direction, thus facilitating quick installation and disassembly of the tool.

[0019] 4. The wear-resistant tool mounting seat of this coal mine tunneling machine increases the stability of the threaded rod fixation through fastening springs and limit plates, effectively preventing vibration from causing the high-frequency sensor to loosen. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of a wear-resistant tool mounting base for a coal mine tunneling machine proposed in this utility model;

[0021] Figure 2 This is a partial front sectional view of the waveguide rod and waveguide hole of a wear-resistant tool mounting seat for a coal mine tunneling machine proposed in this utility model.

[0022] Figure 3 This is a three-dimensional structural diagram of a high-frequency sensor and threaded rod for a wear-resistant tool mounting base for a coal mine tunneling machine, as proposed in this utility model.

[0023] Figure 4 This is a partial front sectional view of the hydraulic cylinder and connecting plate of a wear-resistant tool mounting seat for a coal mine tunneling machine proposed in this utility model.

[0024] Figure 5 This utility model Figure 4 A magnified structural diagram of point A in the middle.

[0025] In the diagram: 1. Mounting base body; 2. Connecting column; 3. Tool; 4. Mounting groove; 5. Threaded groove; 6. Threaded rod; 7. Limiting plate; 8. Fastening spring; 9. High-frequency sensor; 10. Dust cover; 11. Waveguide hole; 12. Waveguide rod; 13. Coupling agent; 14. Gasket; 15. Sealing ring; 16. Copper plating layer; 17. Mounting cavity; 18. Hydraulic cylinder; 19. Connecting plate; 20. Push rod; 21. Mounting slot; 22. Mounting insert plate; 23. Limiting groove; 24. Connection port; 25. Limiting block; 26. Slide groove; 27. Slider. Detailed Implementation

[0026] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0027] The embodiments of this patent are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this patent, and should not be construed as limiting this patent.

[0028] In the description of this patent, it should be understood that the terms “center,” “upper,” “lower,” “front,” “back,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this patent 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 patent.

[0029] In the description of this patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.

[0030] Reference Figures 1-3 A wear-resistant tool mounting base for a coal mine tunneling machine includes a mounting base body 1. A connecting column 2 is fixedly installed on one side of the mounting base body 1, and a tool 3 is installed on one side of the connecting column 2. A mounting groove 4 is opened on one side of the connecting column 2. A threaded groove 5 is opened on the inner wall of one side of the mounting groove 4. A threaded rod 6 is threadedly connected to the inner wall of the threaded groove 5. A high-frequency sensor 9 is fixedly installed at one end of the threaded rod 6. An inclined waveguide hole 11 is opened on the inner wall of the circumference of the mounting groove 4. A waveguide rod 12 is inserted into the inner wall of the waveguide hole 11. One end of the waveguide rod 12 is fixedly installed with the high-frequency sensor 9, and the other end of the waveguide rod 12 is in contact with the tool 3.

[0031] Reference Figure 2 and Figure 3 A limiting piece 7 is sleeved on the outer wall of the threaded rod 6. A fastening spring 8 is fixed between the limiting piece 7 and the threaded rod 6. The fastening spring 8 and the limiting piece 7 increase the stability of the threaded rod 6 and effectively prevent vibration from causing the high-frequency sensor 9 to loosen. The waveguide hole 11 is filled with a coupling agent 13. A copper-plated layer 16 is provided on the inner circumference of the mounting groove 4. The coupling agent 13 fills the micro gaps to enhance the waveguide efficiency, and the copper-plated layer 16 suppresses electrical spark interference.

[0032] Reference Figure 2 The mounting groove 4 has a threaded inner wall at one end, and a dust cover 10 is connected to the inner wall of the mounting groove 4 via the thread. The dust cover 10 facilitates dust protection for the high-frequency sensor 9. A sealing ring 15 is provided between the dust cover 10 and the mounting groove 4, and a gasket 14 is fitted on the outer wall of the dust cover 10. The gasket 14 and the sealing ring 15 effectively prevent dust, water, and oil penetration into the high-frequency sensor 9, avoid damage to the high-frequency sensor 9, and increase the service life of the high-frequency sensor 9.

[0033] Reference Figure 4 and Figure 5 The connecting post 2 has multiple mounting slots 21 arranged in a circular array on one side. Mounting plates 22 are inserted into the inner walls of the mounting slots 21. Limiting grooves 23 are formed on the sides of the mounting plates 22 that are close to each other. Connecting ports 24 are formed on the sides of the mounting slots 21 that are close to each other. Limiting blocks 25, which are adapted to the limiting grooves 23, are slidably disposed on the inner wall of the connecting port 24. The mounting plates 22 and mounting slots 21 facilitate rapid positioning of the tool 3. One side of the limiting block 25 is inclined. A mounting cavity 17 is formed inside the connecting post 2. A hydraulic cylinder 18 is fixedly disposed on one inner wall of the mounting cavity 17. The piston end of the hydraulic cylinder 18 is fixed... A connecting plate 19 is provided, with multiple push rods 20 fixedly mounted on one side of the connecting plate 19. A movable hole is provided on one side of the mounting cavity 17, through which the push rods 20 pass. One end of each push rod 20 is slidably positioned between itself and a limiting block 25. A hydraulic cylinder 18 pushes the connecting plate 19 to move, thereby driving the limiting block 25 into the limiting groove 23 via the push rods 20, thus enabling rapid installation of the tool 3. A sliding groove 26 is provided on the inclined surface of the limiting block 25, and a slider 27 is slidably connected to the inner wall of the sliding groove 26. The slider 27 is fixedly connected to the push rods 20. The sliding groove 26 and the slider 27 facilitate the movement of the limiting block 25 via the push rods 20.

[0034] Working principle: Before using the tunneling machine, the high-frequency sensor 9 is screwed into the mounting groove 4 through the threaded rod 6, and the waveguide rod 12 is inserted into the waveguide hole 11, so that one end of the waveguide rod 12 is fixed to the high-frequency sensor 9 and the other end is in contact with the cutter 3. When the cutter 3 is working, the high-frequency sensor 9 monitors and captures the stress wave of the cutter 3 fracture in real time. When the stress wave of the cutter 3 fracture is detected, the cutter 3 is quickly shut down, effectively avoiding the damage to the base caused by the fracture of the cutter 3.

[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A wear-resistant tool mounting base for a coal mine tunneling machine, comprising a mounting base body (1), characterized in that, A connecting column (2) is fixedly provided on one side of the mounting base body (1). A cutting tool (3) is provided on one side of the connecting column (2). A mounting groove (4) is provided on one side of the connecting column (2). A threaded groove (5) is provided on the inner wall of one side of the mounting groove (4). A threaded rod (6) is connected to the inner wall of the threaded groove (5) by thread. A high-frequency sensor (9) is fixedly provided at one end of the threaded rod (6). A waveguide hole (11) with an inclined design is provided on the inner wall of the mounting groove (4). A waveguide rod (12) is inserted into the inner wall of the waveguide hole (11). One end of the waveguide rod (12) is fixedly provided with the high-frequency sensor (9), and the other end of the waveguide rod (12) is in contact with the cutting tool (3).

2. The wear-resistant tool mounting base for a coal mine tunneling machine according to claim 1, characterized in that, A limiting piece (7) is sleeved on the outer wall of the threaded rod (6), and a fastening spring (8) is fixedly provided between the limiting piece (7) and the threaded rod (6).

3. The wear-resistant tool mounting base for a coal mine tunneling machine according to claim 2, characterized in that, The waveguide hole (11) is filled with a coupling agent (13), and the inner circumferential wall of the mounting groove (4) is provided with a copper plating layer (16).

4. A wear-resistant tool mounting base for a coal mine tunneling machine according to claim 3, characterized in that, The mounting groove (4) has a thread at one end of its circumferential inner wall, and a dust cover (10) is connected to the inner wall of the mounting groove (4) by the thread.

5. A wear-resistant tool mounting base for a coal mine tunneling machine according to claim 4, characterized in that, A sealing ring (15) is provided between the dust cover (10) and the mounting groove (4), and a gasket (14) is fitted on the outer wall of the dust cover (10).

6. A wear-resistant tool mounting base for a coal mine tunneling machine according to claim 1, characterized in that, The connecting column (2) has a plurality of mounting slots (21) arranged in a ring array on one side. The mounting slots (21) are fitted with mounting plates (22). The mounting plates (22) are provided with limiting grooves (23) on the side that is close to each other. The mounting slots (21) are provided with connecting ports (24) on the side that is close to each other. The connecting ports (24) are provided with limiting blocks (25) that are adapted to the limiting grooves (23) slidingly arranged on the inner wall of the connecting ports (24).

7. A wear-resistant tool mounting base for a coal mine tunneling machine according to claim 6, characterized in that, One side of the limiting block (25) is inclined. The connecting column (2) has an installation cavity (17) inside. A hydraulic cylinder (18) is fixedly installed on one side of the inner wall of the installation cavity (17). A connecting plate (19) is fixedly installed on the piston end of the hydraulic cylinder (18). A plurality of push rods (20) are fixedly installed on one side of the connecting plate (19). A movable hole is opened on one side of the installation cavity (17). The push rod (20) passes through the movable hole, and one end of the push rod (20) slides between the limiting block (25).

8. A wear-resistant tool mounting base for a coal mine tunneling machine according to claim 7, characterized in that, The inclined surface of the limiting block (25) is provided with a sliding groove (26), and a slider (27) is slidably connected to the inner wall of the sliding groove (26). The slider (27) is fixedly connected to the push rod (20).

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