Coal mine fully-mechanized heading machine

Abstract

A coal mine fully-mechanized heading machine. The coal mine fully-mechanized heading machine comprises a vehicle body (1), a dust collection assembly (2), and a collection assembly (3). The vehicle body (1) comprises a cutting arm (11), and the cutting arm (11) is provided with a mounting table (13). The collection assembly (3) comprises a dust extraction part (31), an air induction part (32), and a collection pipe (33); the collection pipe (33) is internally provided with a collection channel; the collection channel comprises a first inlet (331) and a first outlet (332); the collection channel is communicated with a dust collection cavity by means of the first inlet (331); the dust extraction part (31) is arranged at the first inlet (331); and the air induction part (32) is arranged at the first outlet (332). The collection pipe (33) comprises at least one U-shaped section (333); the U-shaped section (333) comprises a first sub-section (3331), a second sub-section (3332), and a baffling section (3333); the first sub-section (3331) and the second sub-section (3332) are communicated by means of the baffling section (3333); and both the first sub-section (3331) and the second sub-section (3332) extend in a first direction.

Description

A coal mine tunneling machine

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese patent application No. 2023106898351 filed in China on June 9, 2023, the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present disclosure relates to the field of tunneling equipment, and in particular to a coal mine tunneling machine. Background Art

[0004] A tunnel boring machine (TBM) is a comprehensive mechanized device that integrates multiple functions, including tunneling, rock loading, coal transportation, and even support and track nailing. TBMs are commonly used in coal mining. However, the rapid excavation of TBMs often generates large amounts of dust, which seriously affects the TBM operator's vision, disrupts tunneling operations, and can also affect the health of operators.

[0005] Summary of the Invention

[0006] The present disclosure aims to solve one of the technical problems in the related art at least to a certain extent. To this end, an embodiment of the present disclosure provides a coal mine excavator capable of performing dust removal.

[0007] The coal mine excavator according to the embodiment of the present disclosure includes:

[0008] A vehicle body, the vehicle body including a cutting arm, the cutting arm being provided with a mounting platform;

[0009] A dust collection assembly is provided on the mounting platform, the dust collection assembly includes a dust collection box, a dust collection chamber is provided in the dust collection box, the dust collection box is rotatable relative to the mounting platform, a plurality of dust collectors are provided on the outer peripheral wall of the dust collection box, and the plurality of dust collectors are arranged at intervals around the circumference of the dust collection box; and

[0010] a collecting assembly connected to the dust collection assembly, the collecting assembly comprising a dust extraction component, an air induction component, and a collecting pipe, the collecting pipe being provided with a collecting channel, the collecting channel comprising a first inlet and a first outlet, the collecting channel being connected to the dust collection chamber through the first inlet, the dust extraction component being provided at the first inlet, and the air induction component being provided at the first outlet;

[0011] The collecting pipe includes at least one U-shaped segment, and the U-shaped segment includes a first sub-segment, a second sub-segment and a deflection segment. The first sub-segment and the second sub-segment are connected through the deflection segment, and both the first sub-segment and the second sub-segment extend along a first direction.

[0012] Therefore, the coal mine excavator of the disclosed embodiment can absorb the dust generated during the excavation operation, and has high dust removal efficiency and good dust removal effect, so that the excavation operation can proceed normally and is beneficial to ensuring the respiratory health of the operators.

[0013] In some embodiments, the distal end of the collecting tube extends along the first direction, and the opening of the first outlet faces upward.

[0014] In some embodiments, the collection pipe further includes a connecting section, one end of which is rotatably connected to the dust box, the other end of which is connected to the U-shaped section, the first inlet is located on the connecting section, and the connecting section extends reciprocatingly.

[0015] In some embodiments, the wind speed of the air-inducing component is 0.1 m / s-0.3 m / s.

[0016] In some embodiments, a filter screen is provided in the U-shaped segment, and the outer peripheral wall of the filter screen is connected to the inner peripheral wall of the U-shaped segment.

[0017] In some embodiments, the dust collection assembly further includes a lifting component, one end of which is connected to the bottom of the dust collection box so as to drive the dust collection box to move in the first direction.

[0018] In some embodiments, the dust collection assembly further includes a rotating component, which is connected to the other end of the lifting component to drive the lifting component and the dust collection box to rotate around the first direction.

[0019] In some embodiments, the dust collection assembly further includes a heat dissipation component, which is disposed on the outer periphery of the rotating component to cool the rotating component.

[0020] In some embodiments, the coal mine excavator further includes a spray assembly, which is connected to the vehicle body and includes:

[0021] An atomizing nozzle, the atomizing nozzle being arranged on the dust collecting box;

[0022] A water tank, wherein a fixing frame is provided at the rear of the vehicle body, and the water tank is mounted on the fixing frame; and

[0023] A water supply pipe, one end of which is connected to the water tank, and the other end of which passes through the dust suction chamber and is connected to the atomizing nozzle, and the water supply pipe is a flexible pipe.

[0024] In some embodiments, a top cover is provided on the top of the dust collection box, and the connecting section is rotatably connected to the top cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] FIG1 is a schematic structural diagram of a coal mine tunneling machine according to an embodiment of the present disclosure.

[0026] FIG2 is a schematic structural diagram of a coal mine tunneling machine according to an embodiment of the present disclosure from another perspective.

[0027] FIG3 is a schematic structural diagram of a collecting assembly of a coal mine excavator according to an embodiment of the present disclosure.

[0028] FIG4 is a schematic structural diagram of a collection assembly and a dust suction assembly of a coal mine excavator according to an embodiment of the present disclosure.

[0029] FIG5 is a schematic structural diagram of a collection assembly and a spray assembly of a coal mine excavator according to an embodiment of the present disclosure.

[0030] FIG6 is a schematic structural diagram of a body of a coal mine excavator according to an embodiment of the present disclosure.

[0031] FIG. 7 is an enlarged schematic diagram of point A in FIG. 6 .

[0032] FIG8 is a schematic structural diagram of the heat dissipation component of the coal mine excavator according to an embodiment of the present disclosure.

[0033] Reference numerals:

[0034] Car body 1; cutting arm 11; fixing frame 12; mounting platform 13;

[0035] Dust collection assembly 2; dust collection box 21; dust collector 211; top cover 212; lifting component 22; rotating component 23; heat dissipation component 24; heat dissipation fan 241; dust cover 242; bracket 25; clamping member 26;

[0036] Collection assembly 3; dust extraction component 31; air induction component 32; collection pipe 33; first inlet 331; first outlet 332; U-shaped section 333; first subsection 3331; second subsection 3332; deflection section 3333; connecting section 334; connecting plate 34;

[0037] Spray assembly 4; atomizing nozzle 41; water tank 42; water supply pipe 43; water pump 44. DETAILED DESCRIPTION

[0038] The embodiments of the present disclosure are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present disclosure, but should not be understood as limiting the present disclosure.

[0039] As shown in Figures 1-8, the coal mine excavator of the embodiment of the present disclosure includes a vehicle body 1, a dust suction component 2 and a collection component 3.

[0040] The vehicle body 1 includes a cutting arm 11 , on which a mounting platform 13 is provided.

[0041] The dust collection assembly 2 is arranged on the mounting platform 13. The dust collection assembly 2 includes a dust collection box 21. A dust collection cavity is provided in the dust collection box 21. The dust collection box 21 can rotate relative to the mounting platform 13. A plurality of dust collectors 211 are provided on the outer peripheral wall of the dust collection box 21. The plurality of dust collectors 211 are arranged at intervals around the circumference of the dust collection box 21.

[0042] The collecting component 3 is connected to the dust suction component 2. The collecting component 3 includes a dust extraction component 31, an air induction component 32 and a collecting pipe 33. A collecting channel is provided in the collecting pipe 33. The collecting channel includes a first inlet 331 and a first outlet 332. The collecting channel is connected to the dust suction chamber through the first inlet 331. The dust extraction component 31 is provided at the first inlet 331, and the air induction component 32 is provided at the first outlet 332.

[0043] The collecting pipe 33 includes at least one U-shaped segment 333, which includes a first sub-segment 3331, a second sub-segment 3332 and a deflection segment 3333. The first sub-segment 3331 and the second sub-segment 3332 are connected through the deflection segment 3333, and both the first sub-segment 3331 and the second sub-segment 3332 extend along the first direction.

[0044] For the convenience of description, the up and down direction in FIG1 is taken as the first direction below.

[0045] For example, a mounting platform 13 is provided on the cutting arm 11 , the top surface of the mounting platform 13 is a plane, and the dust collection assembly 2 is fixed on the mounting platform 13 .

[0046] The dust collecting assembly 2 is used to collect dust around the vehicle body 1. The collecting assembly 3 is used to collect dust in the dust collecting assembly 2.

[0047] The dust collector 211 is installed on the outer wall of the dust box 21. The dust collector 211 can suck dust into the dust chamber. Multiple dust collectors 211 are arranged at intervals along the circumference of the dust box 21, and the dust box 21 can rotate relative to the mounting platform 13. In other words, the dust box 21 can rotate around the up and down axis.

[0048] The collecting pipe 33 extends reciprocatingly and includes one or more U-shaped segments 333. In some embodiments, there are 1-5 U-shaped segments 333, such as 1, 3, or 5. The first sub-segment 3331 and the second sub-segment 3332 both extend in the vertical direction.

[0049] When the coal mine excavator of the disclosed embodiment is working, first the multiple dust collectors 211 on the dust box 21 are started, and the dust box 21 rotates relative to the mounting platform 13, thereby sucking the surrounding dust into the dust chamber. Then the dust extraction component 31 is started to draw the dust in the dust chamber into the collection channel. The air flow velocity created by the air induced component 32 is relatively low, so that the wind speed in the collection channel is relatively low, so that the dust can only flow in the collection channel relying on the initial kinetic energy it carries. Moreover, the setting of the U-shaped section 333 increases the length of the collection channel. The dust undergoes a series of actions such as falling, deflecting and lifting in the U-shaped section 333 until its kinetic energy is exhausted, and then falls into the collection channel. The purified fresh air flow is discharged to the outside of the collection channel from the first outlet 332.

[0050] The coal mine tunneling machine of the disclosed embodiment has the dust suction component 2 and the collection component 3 arranged on the cutting wall, so that it can be close to the source of dust generation and absorb the dust at the first time, thereby avoiding the dust from being raised or spread as much as possible, and improving the dust removal efficiency and dust removal effect.

[0051] Secondly, the coal mine tunneling machine of the disclosed embodiment has multiple exhaust fans arranged on the outer peripheral side of the dust box 21, and the dust box 21 can rotate relative to the mounting platform 13, so that the dust box 21 can perform 360-degree dust extraction around it, thereby improving the dust collection efficiency and dust removal effect.

[0052] In addition, the coal mine tunneling machine of the embodiment of the present invention arranges the dust extraction component 31 at the first inlet 331 of the collecting channel, and arranges the air induced component 32 at the first outlet 332 of the collecting channel, that is, the air induced component 32 is arranged as far away from the dust extraction component 31 as possible, and the wind speed generated by the air induced component 32 is relatively low, so that the dust drawn into the collecting channel by the dust extraction component 31 can only rely on its initial kinetic energy to flow to the first outlet 332, and under the interference of the U-shaped section 333, the kinetic energy of the dust is gradually consumed, and finally falls into the collecting channel.

[0053] Therefore, the coal mine excavator of the disclosed embodiment can absorb the dust generated during the excavation operation, and has high dust removal efficiency and good dust removal effect, so that the excavation operation can proceed normally and is beneficial to ensuring the respiratory health of the operators.

[0054] In some embodiments, the dust box 21 can rotate 360 ​​degrees, so that the dust box 21 can drive the vacuum cleaner 211 to rotate, so that the vacuum cleaner 211 can perform 360-degree vacuuming. Alternatively, the dust box 21 can rotate 60-120 degrees, for example, 60 degrees, 90 degrees, or 120 degrees.

[0055] In some embodiments, there are 2-6 vacuum cleaners 211, for example, 2, 4, 6, etc.

[0056] In some embodiments, the air-inducing component 32 includes an induced draft fan, and the dust-extracting component 31 includes an exhaust fan.

[0057] In some embodiments, as shown in Figures 1-4, the distal end of the collection pipe 33 extends in the first direction, and the opening of the first outlet 332 faces upward. The distal end of the collection pipe 33 extends in the vertical direction, thereby allowing the airflow to move only from bottom to top. Dust in the airflow must overcome its own gravity, further consuming its kinetic energy, allowing the dust to land in the collection channel, thereby improving dust removal efficiency.

[0058] In some embodiments, as shown in Figure 3, the collection pipe 33 also includes a connecting section 334, one end of the connecting section 334 is rotatably connected to the dust collection box 21, and the other end of the connecting section 334 is connected to the U-shaped section 333, the first inlet 331 is located on the connecting section 334, and the connecting section 334 extends reciprocatingly.

[0059] For example, the connecting section 334 is used to connect the dust collection box 21 and the U-shaped section 333. A bearing is provided at the connection between the connecting section 334 and the dust collection box 21 so that the dust collection box 21 can rotate relative to the connecting section 334. The connecting section 334 is connected to the dust collection chamber through the first inlet 331.

[0060] The connecting section 334 extends back and forth, for example, the connecting section 334 is S-shaped. Thus, the length of the collection channel is further increased, thereby consuming the kinetic energy of the dust. Moreover, the reciprocating extension of the connection can prevent the dust from flowing back into the dust collection box 21.

[0061] In some embodiments, the wind speed of the air inducing component 32 is 0.1 m / s-0.3 m / s. For example, the wind speed of the air inducing component 32 is 0.1 m / s, 0.15 m / s, 0.2 m / s, or 0.3 m / s. Thus, the wind speed of the air inducing component 32 is relatively low, thereby only directing fresh air out of the collection channel, reducing or even preventing dust from flowing out of the first outlet 332.

[0062] In some embodiments, a filter screen (not shown) is provided in the U-shaped section 333 , and the outer peripheral wall of the filter screen is connected to the inner peripheral wall of the U-shaped section 333 .

[0063] For example, the outer peripheral wall of the filter screen is sealed with the inner peripheral wall of the U-shaped section 333. Thus, under the action of the filter screen, the airflow in the channel can be further collected for filtration, thereby improving the dust removal effect of the coal mine excavator.

[0064] In some embodiments, as shown in FIG. 1 and FIG. 2 , the dust collection assembly 2 further includes a lifting component 22 , one end of which is connected to the bottom of the dust collection box 21 so as to drive the dust collection box 21 to move in the first direction.

[0065] For example, the lifting component 22 can be lifted up and down to drive the dust box 21 to move in the up and down directions. Thus, the lifting component 22 can be used to adjust the dust collection height of the dust collection component 2, thereby extracting dust at different heights, thereby improving the flexibility of the coal mine excavator.

[0066] In some embodiments, the lifting component 22 is a telescopic rod or a hydraulic cylinder.

[0067] In some embodiments, as shown in FIG. 1 and FIG. 2 , the dust collection assembly 2 further includes a rotating component 23 , which is connected to the other end of the lifting component 22 to drive the lifting component 22 and the dust collection box 21 to rotate around a first direction.

[0068] For example, the dust box 21, the lifting member 22, and the rotating member 23 are arranged sequentially from top to bottom. The rotating member 23 can drive the lifting member 22 to rotate about its vertical axis, thereby driving the dust box 21 to rotate. This, in turn, drives the dust collector 211 to rotate, achieving multi-angle dust extraction during rotation, thereby improving dust removal efficiency.

[0069] In some embodiments, the rotating component 23 is a steering gear.

[0070] In some embodiments, as shown in FIG. 1 , FIG. 2 and FIG. 8 , the dust collection assembly 2 further includes a heat dissipation component 24 . The heat dissipation component 24 is disposed on the outer peripheral side of the rotating component 23 to cool the rotating component 23 .

[0071] For example, the heat dissipation component 24 comprises a heat dissipation fan 241 and a dust cover 242. The heat dissipation fan 241 is mounted on the dust cover 242. The dust collection assembly 2 also includes a bracket 25, on which the dust collection box 21, the lifting component 22, and the rotating component 23 are mounted. The bottom of the bracket 25 is fixed to the mounting platform 13, and the dust cover is mounted on the front side of the bracket 25. Thus, the heat dissipation component 24 can reduce the temperature of the rotating component 23 and extend its service life.

[0072] In some embodiments, as shown in Figures 1, 2 and 5, the coal mine excavator also includes a spray assembly 4, which is connected to the vehicle body 1. The spray assembly 4 includes an atomizing nozzle 41, a water tank 42 and a water supply pipe 43. The atomizing nozzle 41 is provided on the dust suction box 21. A fixing frame 12 is provided at the rear of the vehicle body 1. The water tank 42 is installed on the fixing frame 12. One end of the water supply pipe 43 is connected to the water tank 42, and the other end of the water supply pipe 43 passes through the dust suction chamber and is connected to the atomizing nozzle 41, and the water supply pipe 43 is a flexible pipe.

[0073] For example, the atomizing nozzle 41 can atomize water and then spray it out. The atomizing nozzle 41 is mounted on the dust box 21 so that it rotates with the dust box 21. The water tank 42 is detachably connected to the fixed frame 12. The water supply pipe 43 is used to connect the water tank 42 and the atomizing nozzle 41. The water supply pipe 43 is also provided with a water pump 44 and a booster to increase the range and scope of the dust suppression water spray. Thus, the coal mine excavator of the disclosed embodiment can use the spray assembly 4 to suppress dust, allowing some small dust particles to fall to the ground with the water mist, while the remaining large dust particles are absorbed into the dust box 21.

[0074] In some embodiments, as shown in FIG. 1 to FIG. 4 , a top cover 212 is provided on the top of the dust collection box 21 , and the connecting section 334 is rotatably connected to the top cover 212 .

[0075] For example, the top cover 212 has an opening at its center, and the connecting section 334 is connected to the dust suction chamber through the opening. A bearing is provided at the opening, the top cover 212 is connected to the outer ring of the bearing, and the connecting section 334 is connected to the inner ring of the bearing.

[0076] In other embodiments, the collecting assembly 3 further includes a connecting plate 34 , and the connecting section 334 and the U-shaped section 333 are both fixed on the connecting plate 34 , thereby facilitating improving the structural strength of the collecting tube 33 .

[0077] In other embodiments, as shown in FIG1 , a clamping member 26 is provided on one side of the bracket 25 to fix the collecting tube 33 to one side of the bracket 25. For example, the clamping member 26 is a clamp.

[0078] In the description of the present disclosure, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present disclosure and simplifying the description, and do 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 should not be understood as a limitation to the present disclosure.

[0079] Furthermore, 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 technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. Throughout the present disclosure, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0080] In this disclosure, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections, electrical connections, or communication between them; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components, unless otherwise expressly limited. Those skilled in the art will understand the specific meanings of the above terms in this disclosure based on specific circumstances.

[0081] In the present disclosure, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0082] In the present disclosure, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0083] Although the above embodiments have been shown and described, it is understood that the above embodiments are illustrative and are not to be construed as limitations on the present disclosure. Changes, modifications, substitutions and variations of the above embodiments by those skilled in the art are all within the scope of protection of the present disclosure.

Claims

1. A fully automatic excavator with a dust removal device, comprising: A vehicle body, the vehicle body comprising a cutting arm, and a mounting platform is provided on the cutting arm; A dust collection assembly, the dust collection assembly is arranged on the mounting platform, the dust collection assembly includes a dust collection box, a dust collection chamber is arranged in the dust collection box, the dust collection box can rotate relative to the mounting platform, a plurality of dust collectors are arranged on the outer peripheral wall of the dust collection box, and the plurality of dust collectors are arranged at intervals around the circumference of the dust collection box; and A collecting assembly, the collecting assembly is connected to the dust collecting assembly, the collecting assembly comprises a dust extracting component, an air inducing component and a collecting pipe, the collecting pipe is provided with a collecting channel, the collecting channel comprises a first inlet and a first outlet, the collecting channel is connected with the dust collecting chamber through the first inlet, the dust extracting component is provided at the first inlet, and the air inducing component is provided at the first outlet; The collecting pipe includes at least one U-shaped segment, and the U-shaped segment includes a first sub-segment, a second sub-segment and a deflection segment. The first sub-segment and the second sub-segment are connected through the deflection segment, and the first sub-segment and the second sub-segment both extend along a first direction.

2. The coal mine excavator according to claim 1, wherein: The end of the collecting pipe extends along the first direction, and the opening direction of the first outlet faces upward.

3. The coal mine excavator according to claim 1 or 2, wherein: The collecting pipe further comprises a connecting section, one end of which is rotatably connected to the dust collecting box, the other end of which is connected to the U-shaped section, the first inlet is located on the connecting section, and the connecting section extends reciprocatingly.

4. The coal mine excavator according to any one of claims 1 to 3, wherein: The wind speed of the wind-inducing component is 0.1m / s-0.3m / s.

5. The coal mine excavator according to any one of claims 1 to 4, wherein: A filter screen is arranged inside the U-shaped section, and the outer peripheral wall of the filter screen is connected to the inner peripheral wall of the U-shaped section.

6. The coal mine excavator according to any one of claims 1 to 5, wherein: The dust collection assembly further includes a lifting component, one end of which is connected to the bottom of the dust collection box so as to drive the dust collection box to move in the first direction.

7. The coal mine excavator according to claim 6, wherein: The dust collection assembly further comprises a rotating component, and the rotating component is connected to the other end of the lifting component so as to drive the lifting component and the dust collection box to rotate around the first direction.

8. The coal mine excavator according to claim 7, wherein: The dust collection assembly further comprises a heat dissipation component, and the heat dissipation component is arranged on the outer peripheral side of the rotating component so as to cool the rotating component.

9. The coal mine excavator according to any one of claims 1 to 8, further comprising a spray assembly, wherein the spray assembly is connected to the vehicle body, and the spray assembly comprises: Atomizing nozzle, the atomizing nozzle is arranged on the dust collecting box; A water tank, wherein a fixing frame is provided at the rear of the vehicle body, and the water tank is mounted on the fixing frame; and A water supply pipe, one end of which is connected to the water tank, and the other end of which passes through the dust suction chamber and is connected to the atomizing nozzle, and the water supply pipe is a flexible pipe.

10. The coal mine excavator according to claim 3, wherein: A top cover is arranged on the top of the dust collection box, and the connecting section is rotatably connected to the top cover.

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