A tunneling machine shovel plate and a tunneling machine

Abstract

The application relates to the technical field of heading machines, in particular to a heading machine shovel plate and a heading machine. The heading machine shovel plate comprises a star wheel, a star wheel driving device and a stop piece; the star wheel driving device comprises a rotating disc, and the rotating disc comprises a polygonal plug-in shaft; the star wheel is provided with a polygonal plug-in hole, the polygonal plug-in shaft and the polygonal plug-in hole are circumferentially plugged in a matched mode, and the stop piece is detachably connected with the polygonal plug-in shaft; in a connected state, the stop piece abuts against an end of the star wheel which is away from the rotating disc. The heading machine comprises the heading machine shovel plate. The heading machine shovel plate and the heading machine realize quick and convenient replacement of the star wheel, compared with the scheme of fixing and connecting through multiple bolts in the related art, the difficulty of disassembly and assembly of the underground coal mine is simplified, and the convenience and disassembly and assembly efficiency of the star wheel replacement are significantly improved.

Description

Technical Field

[0001] This application relates to the field of tunneling machine technology, and in particular to a tunneling machine shovel and a tunneling machine. Background Technology

[0002] The tunneling machine's shovel is the material receiving mechanism, which pushes material onto the conveyor via the rotation of a star wheel on it. The star wheel is mounted on the rotary table of the star wheel drive unit, which drives the star wheel to rotate.

[0003] Currently, the star wheel and the rotating disk are directly connected by multiple bolts arranged at intervals. Both have connecting holes extending in the same direction as the axial direction, and the bolts pass through the connecting holes to fix the two together. For example, this commonly used bolt connection structure is disclosed in patent publication number CN102278111B. Using a bolt connection structure makes disassembling and assembling the star wheel extremely difficult in underground coal mines.

[0004] However, the star wheel is a wear part due to long-term friction and needs to be replaced periodically or when necessary. The bolted connection structure in related technologies makes the replacement of the star wheel cumbersome, inconvenient, and difficult. Therefore, it is urgent to solve the problem of the inconvenience and difficulty in replacing the star wheel. Utility Model Content

[0005] The purpose of this application is to provide a tunneling machine shovel and a tunneling machine, so as to solve to some extent the technical problems of inconvenience and difficulty in replacing the star wheel of the tunneling machine shovel in the prior art.

[0006] This application provides a tunneling machine shovel, including: a star wheel, a star wheel drive device, and a stop; The star wheel drive device includes a rotating disk, and the rotating disk includes a polygonal plug-in shaft; The star wheel is provided with a polygonal insertion hole, and the polygonal insertion shaft is circumferentially inserted into the polygonal insertion hole; The stop member is detachably connected to the polygonal plug shaft. In the connected state, the stop member abuts against the end of the star wheel that is away from the rotating disk.

[0007] In the above technical solution, the polygonal plug shaft extends out from the polygonal plug hole, and the polygonal plug shaft protrudes from the end face of the star wheel that is opposite to the rotating disk. The stop member is detachably connected to the portion of the polygonal plug shaft that extends out of the polygonal plug hole.

[0008] In any of the above technical solutions, the polygonal plug shaft extends from the polygonal plug hole and protrudes from the end face of the star wheel that is opposite to the rotating disk. The stop member is detachably connected to the portion of the polygonal plug shaft that extends out of the polygonal plug hole.

[0009] In any of the above technical solutions, the polygonal plug shaft is further provided with a connecting through hole on a predetermined edge, the connecting through hole connecting two sides adjacent to the predetermined edge, and the stop member is detachably inserted into the connecting through hole.

[0010] In any of the above technical solutions, the number of predetermined edges is not less than two.

[0011] In any of the above technical solutions, the polygonal plug shaft is further defined as a square plug shaft, and the polygonal plug hole is defined as a square plug hole.

[0012] In any of the above technical solutions, the number of predetermined edges is two, and the two predetermined edges are respectively located at the diagonal positions of the square insertion shaft.

[0013] In any of the above technical solutions, the stop component further includes a stop bolt and a stop nut; The stop bolt passes through the connecting through hole, one end of the stop bolt is provided with a head, and the stop nut is threadedly connected to the other end of the stop bolt; In the connected state, both the head and the stop nut abut against the end of the star wheel that is away from the rotating disk.

[0014] In any of the above technical solutions, the rotating disk further includes a positioning boss, and the polygonal plug shaft is disposed on the positioning boss; The star wheel is provided with a positioning groove, and the positioning boss is provided in the positioning groove.

[0015] In any of the above technical solutions, each edge of the polygonal plug shaft is provided with a chamfer structure so that an assembly gap is formed between the chamfer and the polygonal plug hole.

[0016] This application also provides a tunneling machine, including the tunneling machine shovel plate described in any of the above technical solutions.

[0017] Compared with the prior art, the beneficial effects of this application are as follows: The tunneling machine blade provided in this application includes a star wheel, a star wheel drive device, and a stop. The rotating disk of the star wheel drive device includes a polygonal plug-in shaft. The star wheel is provided with a polygonal plug-in hole. The polygonal plug-in shaft and the polygonal plug-in hole are circumferentially adapted to be plugged in, so that the star wheel and the rotating disk can be easily plugged in and form a circumferential fixed connection relationship. The stop is detachably connected to the polygonal plug-in shaft. In the connected state, the stop abuts against the end of the star wheel away from the rotating disk, so that the star wheel and the rotating disk form an axial fixed connection relationship.

[0018] Therefore, when the star wheel needs to be replaced, simply remove the stop relative to the polygonal plug shaft to release the axial restriction of the stop on the star wheel, and then move the star wheel axially along the polygonal plug shaft to remove the old star wheel from the star wheel drive device. Insert the new star wheel into the polygonal plug shaft, and then connect the stop to the polygonal plug shaft to achieve a fixed connection of the new star wheel axially and circumferentially relative to the polygonal plug hole, thus achieving a fixed installation of the star wheel onto the rotating disk. This enables quick and convenient star wheel replacement, significantly simplifying the disassembly and assembly process in underground coal mines compared to related technologies that use multiple bolt connections, and improving the convenience and efficiency of star wheel replacement.

[0019] The tunneling machine provided in this application includes the tunneling machine shovel plate described above, and therefore has all the beneficial technical effects of the tunneling machine shovel plate, which will not be repeated here. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the first structure of the tunneling machine shovel plate provided in Embodiment 1 of this application; Figure 2 This is a schematic diagram of the second structure of the tunneling machine shovel provided in Embodiment 1 of this application; Figure 3 This is a schematic diagram of the third structure of the tunneling machine shovel provided in Embodiment 1 of this application; Figure 4 This is a schematic diagram of the star wheel structure of the tunneling machine shovel provided in Embodiment 1 of this application.

[0022] Figure label: 1-Star wheel; 10-Polygonal insertion hole; 20-Motor; 21-Rotating disk; 210-Polygonal insertion shaft; 211-Positioning boss; 22-Bearing; 23-Retaining ring; 24-Floating seal component; 25-Limiting round nut; 26-Mounting base; 3-Stop component; 30-Stop bolt; 31-Stop nut; 4-Assembly clearance. Detailed Implementation

[0023] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Example 1 See Figures 1 to 4 As shown, Embodiment 1 of this application provides a tunneling machine shovel plate. Figure 1 This is a schematic diagram of the first structure of the tunneling machine shovel plate provided in Embodiment 1; Figure 2 This is a schematic diagram of the second structure of the tunneling machine shovel provided in Embodiment 1. Figure 1 The front view; Figure 3 This is a schematic diagram of the third structure of the tunneling machine shovel provided in Embodiment 1, which simply shows the structure from a cross-sectional view perspective; Figure 4 This is a schematic diagram of the star wheel structure of the tunneling machine shovel provided in Embodiment 1 of this application.

[0027] The tunneling machine shovel provided in this embodiment includes a star wheel 1, a star wheel drive device, and a stop 3.

[0028] The star wheel drive device includes a rotating disk 21, which includes a polygonal plug-in shaft 210, wherein the polygonal plug-in shaft 210 corresponds to a polygon with at least three sides.

[0029] like Figure 4 As shown, the star wheel 1 is provided with a polygonal insertion hole 10, and the polygonal insertion shaft 210 is circumferentially fitted into the polygonal insertion hole 10. That is, by inserting the polygonal insertion hole 10 and the polygonal insertion shaft 210 into each other, the star wheel 1 and the rotating disk 21 form a circumferential anti-rotation connection relationship, so that the two can move synchronously in the circumferential direction. That is, under the drive of the star wheel drive device, the star wheel 1 can rotate synchronously with the rotating disk 21.

[0030] Specifically, the star wheel drive device also includes a mounting base 26 and a motor 20. The motor 20 is fixed on the mounting base 26, and the rotating disk 21 is rotatably connected to the mounting base 26. The rotating disk 21 has a connecting shaft, and the motor 20 is connected to the connecting shaft of the rotating disk 21 to drive the rotating disk 21 to rotate relative to the mounting base 26. To improve the stability of the rotation of the rotating disk 21, a bearing 22 is provided between the rotating disk 21 and the mounting base 26. The inner ring of the bearing 22 is fitted around the outer circumference of the connecting shaft of the rotating disk 21, and the mounting base 26 is fitted around the outer circumference of the outer ring of the bearing 22. One end of the bearing 22 abuts against the rotating disk 21, and the other end of the bearing 22 abuts against a limiting round nut 25 that is threadedly connected to the rotating disk 21. A retaining ring 23 and a floating sealing component 24 are provided between the outer ring of the bearing 22 and the rotating disk 21.

[0031] Optionally, the tunneling machine shovel also includes a shovel body (not shown in the figure), and the star wheel drive device is fixed to the shovel body by the mounting base 26, so that the star wheel drive device can drive the star wheel 1 to rotate relative to the shovel.

[0032] The stop 3 is detachably connected to the polygonal plug shaft 210. In the connected state, the stop 3 abuts against the end of the star wheel 1 that is away from the rotating disk 21, thereby limiting the axial displacement of the star wheel 1 through the stop 3.

[0033] As can be seen, when it is necessary to replace the star wheel 1, it is only necessary to remove the stop 3 relative to the polygonal insertion shaft 210, release the axial restriction of the stop 3 on the star wheel 1, and then move the star wheel 1 along the axial direction of the polygonal insertion shaft 210 to remove the old star wheel 1 relative to the star wheel drive device; insert the new star wheel 1 into the polygonal insertion shaft 210, and then connect the stop 3 to the polygonal insertion shaft 210 to achieve a fixed connection of the new star wheel 1 relative to the polygonal insertion hole 10 in the axial and circumferential directions, and to achieve a fixed installation of the star wheel 1 onto the rotating disk 21. This enables quick and convenient replacement of the star wheel 1, which significantly simplifies the difficulty of disassembly and assembly in underground coal mines and improves the convenience and efficiency of replacing the star wheel 1 compared to the related technologies that use multiple bolts for fixing.

[0034] In this embodiment, as Figure 2 and Figure 3 As shown, the polygonal plug shaft 210 extends from the polygonal plug hole 10, and the polygonal plug shaft 210 protrudes from the end face of the star wheel 1 opposite to the rotating disk 21.

[0035] The stop 3 is detachably connected to the part of the polygonal plug shaft 210 that extends out of the polygonal plug hole 10. By setting the polygonal plug shaft 210 to protrude from the end face relative to the rotating disk 21, the stop 3 can be installed and removed relative to the polygonal plug shaft 210, thereby further improving the ease of installation and removal of the star wheel 1.

[0036] In an optional embodiment, the polygonal plug shaft 210 has a predetermined edge with a connecting through hole, which connects two sides adjacent to the predetermined edge. The stop member 3 is detachably inserted into the connecting through hole. Figure 1 As shown, the polygonal plug shaft 210 has a connection through hole at the upper right corner and the lower left corner of the predetermined edge, so that the stop 3 can be detachably connected to the polygonal plug shaft 210 through the connection through hole.

[0037] In an optional embodiment, the number of predetermined edges is not less than two, thereby providing sufficient and balanced axial restraint for the star wheel 1 through a sufficient number of mounting points of the stop members 3.

[0038] Optionally, the number of predetermined edges is not greater than the number of edges of the polygonal plug shaft 210. Further, the number of predetermined edges is not less than half the number of edges of the polygonal plug shaft 210.

[0039] In the optional embodiment, the polygonal plug shaft 210 is a square plug shaft and the polygonal plug hole 10 is a square plug hole. Compared with the triangle, the circumferential limiting relationship formed after the two are plugged is more stable; compared with the more polygonal, the structure is more concise.

[0040] Furthermore, the number of predetermined edges is two, and the two predetermined edges are located at opposite corners of the square insertion shaft, such as... Figure 1 As shown, the symmetry and balance of the force on the star wheel 1 are improved while providing sufficient axial restraint.

[0041] In an optional embodiment, the stop member 3 includes a stop bolt 30 and a stop nut 31.

[0042] The stop bolt 30 passes through the connecting through hole. One end of the stop bolt 30 is provided with a head, and the stop nut 31 is threadedly connected to the other end of the stop bolt 30. In the connected state, both the head and the stop nut 31 abut against the end of the star wheel 1 that is away from the rotating disk 21. Thus, the stop part 3 can be easily disassembled and assembled by simply disassembling and assembling the stop nut 31 and the stop bolt 30. Moreover, the threaded connection of the stop part 3 has high connection strength and is more reliable for axial positioning of the star wheel 1.

[0043] See Figure 1 As shown, in an optional embodiment, the rotating disk 21 further includes a positioning boss 211, a polygonal plug-in shaft 210 is disposed on the positioning boss 211, the star wheel 1 is provided with a positioning groove, and the positioning boss 211 is adaptedly disposed in the positioning groove, as shown. Figure 3 As shown, the positioning boss 211 is connected to the positioning groove in a matching manner, providing further axial positioning for the rotating disk 21 and the star wheel 1.

[0044] In the optional solutions of this embodiment, such as Figure 1 As shown, each edge of the polygonal plug shaft 210 is provided with a chamfer structure so that an assembly gap 4 is formed between the chamfer and the polygonal plug hole 10. This can improve the ease of alignment between the polygonal plug shaft 210 and the polygonal plug hole 10 during disassembly and assembly, as well as the smoothness of relative movement along the axial direction, thereby further improving the convenience and efficiency of disassembly and assembly.

[0045] Example 2 Embodiment 2 provides a tunneling machine, which includes the tunneling machine shovel plate of Embodiment 1. The technical features of the tunneling machine shovel plate disclosed in Embodiment 1 are also applicable to this embodiment. The technical features of the tunneling machine shovel plate disclosed in Embodiment 1 will not be described again.

[0046] The tunneling machine in this embodiment has the advantages of the tunneling machine shovel in Embodiment 1. The advantages of the tunneling machine shovel disclosed in Embodiment 1 will not be repeated here.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model. In addition, those skilled in the art can understand that although some embodiments described herein include certain features included in other embodiments but not other features, the combination of features of different embodiments means that they are within the scope of this utility model and form different embodiments. For example, any one of the claimed embodiments can be used in any combination. The information disclosed in this background section is only intended to deepen the understanding of the overall background technology of this utility model, and should not be regarded as an admission or in any form implying that the information constitutes prior art known to those skilled in the art.

Claims

1. A shovel plate for a tunneling machine, characterized in that, include: Star wheel, star wheel drive unit and stop; The star wheel drive device includes a rotating disk, and the rotating disk includes a polygonal plug-in shaft; The star wheel is provided with a polygonal insertion hole, and the polygonal insertion shaft is circumferentially inserted into the polygonal insertion hole; The stop member is detachably connected to the polygonal plug shaft. In the connected state, the stop member abuts against the end of the star wheel that is away from the rotating disk.

2. The tunneling machine shovel plate according to claim 1, characterized in that, The polygonal plug shaft extends from the polygonal plug hole, and the polygonal plug shaft protrudes from the end face of the star wheel that is opposite to the rotating disk. The stop member is detachably connected to the portion of the polygonal plug shaft that extends out of the polygonal plug hole.

3. The tunneling machine shovel plate according to claim 1, characterized in that, The polygonal plug shaft has a predetermined edge with a connecting through hole, the connecting through hole connecting two sides adjacent to the predetermined edge, and the stop member is detachably inserted into the connecting through hole.

4. The tunneling machine shovel plate according to claim 3, characterized in that, The number of predetermined edges is no less than two.

5. The tunneling machine shovel plate according to claim 4, characterized in that, The polygonal plug shaft is a square plug shaft, and the polygonal plug hole is a square plug hole.

6. The tunneling machine shovel plate according to claim 5, characterized in that, The number of predetermined edges is two, and the two predetermined edges are located at opposite corners of the square insertion shaft.

7. The tunneling machine shovel plate according to claim 3, characterized in that, The stop component includes a stop bolt and a stop nut; The stop bolt passes through the connecting through hole, one end of the stop bolt is provided with a head, and the stop nut is threadedly connected to the other end of the stop bolt; In the connected state, both the head and the stop nut abut against the end of the star wheel that is away from the rotating disk.

8. The tunneling machine shovel plate according to claim 1, characterized in that, The rotating disk further includes a positioning boss, and the polygonal plug-in shaft is disposed on the positioning boss; The star wheel is provided with a positioning groove, and the positioning boss is provided in the positioning groove.

9. The tunneling machine shovel plate according to claim 1, characterized in that, Each edge of the polygonal plug shaft is provided with a chamfer structure so that an assembly gap is formed between the chamfer and the polygonal plug hole.

10. A tunneling machine, characterized in that, Includes the tunneling machine shovel plate as described in any one of claims 1 to 9.

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