A ventilation-adjustable mining tunneling machine

Abstract

This invention discloses a ventilation-adjustable rhythm mining tunneling machine, relating to the field of coal mining technology. The ventilation-adjustable rhythm mining tunneling machine of this invention includes a traveling chassis, a baffle plate, and a spraying assembly. The baffle plate is rotatably mounted on the traveling chassis and has an isolation position. In the isolation position, the baffle plate divides the roadway and restricts a dust-removing section between the baffle plate and the working face. The spraying assembly is mounted on the traveling chassis and includes nozzles. The nozzles are used to spray water into the dust-removing section to remove dust. The spraying position and / or spraying direction of the nozzles are adjustable to achieve adjustable spray surface of the water. This ventilation-adjustable rhythm mining tunneling machine of the present invention uses the baffle plate to block the air flowing in the roadway and sprays water to remove dust, ensuring air quality in the roadway and reducing the impact of dust on the health of workers.

Description

Technical Field

[0001] This invention relates to the field of coal mining technology, and more specifically, to a mining tunneling machine with adjustable ventilation rhythm. Background Technology

[0002] A tunneling machine is a machine used to excavate tunnels in flat ground. Currently, the most important method for efficient tunneling in coal mines in my country is the combination of a cantilever tunneling machine and a single-unit anchor drilling rig, also known as integrated mechanized tunneling in coal mines, which is widely used in key coal mines.

[0003] However, when tunneling machines are excavating and mining in roadways, a large amount of dust is generated. If effective dust removal measures are not taken and the dust is not isolated from the workers in a timely manner, it will seriously affect the air quality of the entire mining roadway and have a serious impact on the health of the workers. Summary of the Invention

[0004] The present invention aims to at least partially solve one of the technical problems in the related art.

[0005] To address this, this invention proposes a ventilation-adjustable mining tunneling machine. This machine uses a rotating baffle to block the airflow in the tunnel and sprays water to effectively remove dust, thus ensuring air quality in the tunnel and reducing the impact of dust on the health of workers.

[0006] The ventilation rhythm adjustable mining tunneling machine of this invention includes:

[0007] A self-moving chassis;

[0008] A partition plate, which is rotatably mounted on the traveling chassis and has an isolation position during rotation, wherein the partition plate divides the roadway and restricts a dust removal roadway section between the partition plate and the working face;

[0009] A spray assembly is mounted on the traveling chassis. The spray assembly includes a nozzle for spraying water into the dust removal tunnel section to remove dust from the dust removal tunnel section. The spray position and / or spray direction of the nozzle is adjustable to achieve adjustable spray surface of the water sprayed by the nozzle.

[0010] The adjustable ventilation rhythm tunneling machine of this invention blocks the airflow in the tunnel by rotating the position of the baffle and effectively removes dust by spraying water, thus ensuring the air quality in the tunnel and reducing the impact of dust on the health of the workers.

[0011] In some embodiments, the spray assembly includes a spray pipe disposed on the partition and arranged circumferentially along the partition. Spray holes are provided at intervals along the extending direction on the spray pipe, and the spray holes are located on the side of the spray pipe away from the partition. The spray pipe is used to spray the air circulation channel between the roadway and the partition.

[0012] In some embodiments, the spraying assembly includes a water pump, the water pump's delivery end of which is connected to both the nozzle and the spray pipe, the nozzle and the spray pipe being used to simultaneously spray water into the tunnel.

[0013] In some embodiments, a support plate is fixedly provided on the chassis, and a top support member is provided between the support plate and the partition. The two ends of the top support member are respectively rotatably connected to the support plate and the partition, and the length of the top support member is adjustable. The top support member is used to drive the partition to rotate to the isolation position.

[0014] In some embodiments, when the sum of the extension length of the partition and the distance from the partition to the roadway floor is less than the height of the roadway, the partition is perpendicular to the traveling chassis in the isolation position; when the sum of the extension length of the partition and the distance from the partition to the roadway floor is not less than the height of the roadway, the partition is inclined relative to the traveling chassis in the isolation position.

[0015] In some embodiments, the spray assembly includes a delivery pipe, a spray pipe, and a drive member. The delivery pipe and the spray pipe are rotatably connected and communicate with each other. The other end of the spray pipe is connected to the nozzle. The drive member is driven to the spray pipe and is used to drive the spray pipe to swing around the axis of the spray pipe to adjust the spray position and spray direction of the nozzle.

[0016] In some embodiments, the nozzle is L-shaped and includes a horizontal section and a vertical section, the end of the horizontal section being connected to the nozzle, and the end of the vertical section being rotatably connected to the delivery pipe.

[0017] In some embodiments, a robotic arm is included, one end of which is rotatably connected to the walking chassis, and the other end of which is provided with a tunneling assembly. The tunneling assembly includes a main tunneling head and two auxiliary tunneling heads, which are used to perform tunneling operations in sequence.

[0018] In some embodiments, during the tunneling operation of the tunneling machine, the horizontal pipe section has a first spray position and a second spray position. At the first spray position, the angle between the extension line of the axis of the horizontal pipe section and the extension line of the axis of the auxiliary tunneling head is an acute angle, and the nozzle and the auxiliary tunneling head performing the tunneling operation are located on the same side of the main tunneling head. At the second spray position, the axis of the horizontal pipe section coincides with or is parallel to the axis of the main tunneling head.

[0019] In some embodiments, when the tunneling machine is performing mining operations, the partition is first adjusted to the isolation position, then the nozzle position is adjusted and the nozzle is turned on to spray the dust removal roadway section, and finally the main tunneling head or the auxiliary tunneling head is turned on. Attached Figure Description

[0020] Figure 1 This is a first-view structural schematic diagram of the ventilation rhythm adjustable mining tunneling machine according to an embodiment of the present invention.

[0021] Figure 2 This is a second-view structural schematic diagram of the ventilation rhythm adjustable mining tunneling machine according to an embodiment of the present invention.

[0022] Figure label:

[0023] 1. Walking chassis; 11. Support plate; 12. Top support component;

[0024] Partition 2;

[0025] Spray assembly 3; nozzle 31; spray pipe 32; delivery pipe 33; spray pipe 34; horizontal pipe section 341; vertical pipe section 342; drive component 35;

[0026] Robotic arm 4;

[0027] Main tunneling head 5;

[0028] Auxiliary tunneling head 6. Detailed Implementation

[0029] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0030] like Figure 1 and Figure 2As shown, the ventilation rhythm adjustable mining tunneling machine of this embodiment includes a traveling chassis 1, a partition 2, and a spray assembly 3. The traveling chassis 1 can move on its own. The partition 2 is rotatably mounted on the traveling chassis 1 and has an isolation position during rotation. In the isolation position, the partition 2 divides the roadway and restricts a dust removal roadway section between the partition 2 and the working face. The spray assembly 3 is mounted on the traveling chassis 1 and includes a nozzle 31. The nozzle 31 is used to spray water into the dust removal roadway section to remove dust from the dust removal roadway section. The spray position and / or spray direction of the nozzle 31 is adjustable to achieve adjustable spray surface of the water sprayed by the nozzle 31.

[0031] When the ventilation rhythm adjustable mining tunneling machine of this embodiment is in use, it moves to the tunnel to be excavated position by walking chassis 1, rotates partition 2 to the isolation position, and turns on nozzle 31 to spray the dust removal tunnel before starting the tunneling operation.

[0032] The adjustable ventilation rhythm mining tunneling machine of this invention blocks the air flowing in the tunnel by rotating the position of the partition 2, and effectively removes dust by spraying water, thus ensuring the air quality in the tunnel and reducing the impact of dust on the health of the workers.

[0033] Optionally, the bottom of the chassis 1 is equipped with tracks, and the top of the chassis 1 is equipped with a cab for the operator to sit in.

[0034] Optionally, the top two ends of the walking chassis 1 are fixed with fixing blocks, and the fixing blocks have a positioning shaft running through them. The positioning shaft is fixedly connected to the partition plate 2.

[0035] Optionally, a coal shovel plate is connected to one end of the traveling chassis 1, and a sweeping plate is installed on the top of the coal shovel plate. A conveyor belt is connected through one end of the traveling chassis 1 for conveying coal blocks. When the tunneling machine is tunneling and mining the underground roadway, the broken coal seam falls onto the coal shovel plate. By continuously rotating the sweeping plate, the coal seam on the coal shovel plate can be pushed onto the conveyor belt, and the broken coal seam is conveyed by the conveyor belt.

[0036] Optionally, the width of the partition 2 is equal to the width of the chassis 1.

[0037] In some embodiments, such as Figure 1 and Figure 2 As shown, the spray assembly 3 includes a spray pipe 32, which is disposed on the partition 2 and arranged around the partition 2. Spray holes are provided at intervals along the extension direction on the spray pipe 32, and the spray holes are located on the side of the spray pipe 32 away from the partition 2. The spray pipe 32 is used to spray the air circulation channel between the roadway and the partition 2.

[0038] By installing a spray pipe 32 on the partition 2, the spray pipe 32 sprays the air circulation channel between the roadway and the partition 2 during tunneling operations, thereby achieving soft isolation of the air around the partition 2, enhancing the dust removal effect in the dust removal roadway section, and ensuring the air quality in the roadway.

[0039] In some embodiments, the spray assembly 3 includes a water pump, the water delivery end of which is connected to both a nozzle 31 and a spray pipe 32. The nozzle 31 and the spray pipe 32 are used to spray water into the tunnel simultaneously.

[0040] By connecting both the nozzle 31 and the spray pipe 32 to the water pump's water delivery end, simultaneous spraying operations of the nozzle 31 and the spray pipe 32 can be achieved, which is convenient for connection and operation.

[0041] In some embodiments, such as Figure 1 and Figure 2 As shown, a support plate 11 is fixedly provided on the chassis 1. A top support 12 is provided between the support plate 11 and the partition 2. The two ends of the top support 12 are rotatably connected to the support plate 11 and the partition 2 respectively, and the length of the top support 12 is adjustable. The top support 12 is used to drive the partition 2 to rotate to the isolation position.

[0042] A top support 12 is provided, and the rotation of the partition 2 is controlled by the change in the length of the top support 12. The position of the partition 2 after rotation can be fixed by the top support 12 to ensure the stability of the partition 2 in the isolation position.

[0043] Optionally, the top support 12 is a telescopic cylinder. The telescopic end of the telescopic cylinder is welded with a fixed end. A pull rod runs through the inside of the fixed end. Fixed plates are connected to both ends of the pull rod. One end of the telescopic cylinder applies a pulling or pushing force to the pull rod through the fixed end, thereby driving the partition 2 to rotate.

[0044] In some embodiments, when the sum of the extension length of the partition 2 and the distance from the partition 2 to the roadway floor is less than the height of the roadway, the partition 2 is perpendicular to the traveling chassis 1 in the isolation position; when the sum of the extension length of the partition 2 and the distance from the partition 2 to the roadway floor is not less than the height of the roadway, the partition 2 is inclined relative to the traveling chassis 1 in the isolation position.

[0045] When the tunneling machine is tunneling, the isolation position of the partition 2 is adjusted in real time according to the height of the tunnel excavation and the extension length of the partition 2, so as to improve the applicability of the partition 2 in the tunnel.

[0046] In some embodiments, such as Figure 1 and Figure 2As shown, the spray assembly 3 includes a delivery pipe 33, a spray pipe 34, and a drive component 35. The delivery pipe 33 and the spray pipe 34 are rotatably connected and communicate with each other. The other end of the spray pipe 34 is connected to the nozzle 31. The drive component 35 is connected to the spray pipe 34 and is used to drive the spray pipe 34 to swing around the axis of the spray pipe 34 to adjust the spray position and spray direction of the nozzle 31.

[0047] Through the connection between the conveying pipe 33 and the spray pipe 34, the spray pipe 34 can be rotated under the action of the driving component 35, which facilitates the adjustment of the spray direction of the nozzle 31 and improves the dust removal effect of the nozzle 31 on the dust removal roadway.

[0048] Optionally, the drive unit 35 is a drive motor, the output shaft of the drive motor is provided with a drive gear, and the nozzle 34 is provided with a driven gear that meshes with the drive gear. When the drive motor is working, it drives the nozzle 34 to rotate.

[0049] Optionally, the drive unit 35 is a servo motor. The output end of the servo motor is fixed with a snap-fit ​​plate. The snap-fit ​​plate is adapted to snap-fit ​​the surface of the nozzle 34. When the servo motor is started, the output end of the servo motor drives the nozzle 34 to rotate in the horizontal direction through the snap-fit ​​plate, thereby increasing the spraying area in the tunnel.

[0050] In some embodiments, such as Figure 1 As shown, the nozzle 34 is L-shaped and includes a horizontal pipe section 341 and a vertical pipe section 342. The end of the horizontal pipe section 341 is connected to the nozzle 31, and the end of the vertical pipe section 342 is rotatably connected to the delivery pipe 33.

[0051] The nozzle 34 is set to an L-shape to further adjust the spray direction of the nozzle 31. When the vertical pipe section 342 rotates, the position of the nozzle 31 can be adjusted to ensure the dust removal effect of the nozzle 31.

[0052] Optionally, the nozzle 31 can be an automatically rotating nozzle 31 to ensure the coverage area of ​​the spray surface of the nozzle 31 and enhance the dust removal effect.

[0053] In some embodiments, such as Figure 1 and Figure 2 As shown, it includes a robotic arm 4, one end of which is rotatably connected to the traveling chassis 1, and the other end of the robotic arm 4 is provided with a tunneling assembly. The tunneling assembly includes a main tunneling head 5 and two auxiliary tunneling heads 6, which are used to perform tunneling operations in sequence.

[0054] By setting the main tunneling head 5 and two auxiliary tunneling heads 6 on the robotic arm 4, the tunneling efficiency of the tunneling machine is improved, and the dust generated by the tunneling machine is easily controlled.

[0055] Optionally, a positioning plate is provided at the top center of the walking chassis 1, and a support mechanism is provided on the positioning plate. A drive shaft is hinged to the top of the support mechanism. The drive shaft is fixedly connected to the robotic arm 4. When the drive shaft rotates, it can drive the robotic arm 4 to rotate around the central axis of the drive shaft.

[0056] Optionally, a support frame is installed on the top of the walking chassis 1, and a drive motor is fixed on the top of the support frame. The output end of the drive motor is connected to the drive shaft, and the input end of the drive motor is electrically connected to an external power supply. When the drive motor is started, the output end of the drive motor drives the robotic arm 4 to rotate through the drive shaft.

[0057] Optionally, a telescopic mechanism is connected between one end of the auxiliary tunneling head 6 and the robotic arm 4. The telescopic mechanism can drive the auxiliary tunneling head 6 to move in and out, improving the convenience of mining roadways in coal mines.

[0058] Optionally, a support component is installed at the bottom of the robotic arm 4. The support component includes a hydraulic cylinder with a welding plate welded to the top. A sliding groove is fixed at the bottom of the robotic arm 4. When the robotic arm 4 rotates to adjust its own angle and orientation, the support component can provide auxiliary support for the bottom of the robotic arm 4. Activating the hydraulic cylinder can support and lift the bottom of the robotic arm 4, reducing the load on the drive shaft.

[0059] Optionally, a movable block is movably engaged inside the chute, and a movable block is welded to the bottom of the movable block. A circular shaft is connected through the inside of the movable block, and a U-shaped block is movably connected to the surface of the circular shaft. The bottom of the U-shaped block is welded and fixed to the welding plate. By setting the chute, space for position adjustment of the movable block can be provided.

[0060] Optionally, the top of the support mechanism is fixed with a bearing mounting groove, the drive shaft passes through the bearing mounting groove and is connected to the bearing mounting groove with a bearing, and the bearing mounting groove is used for positioning and installing the drive shaft.

[0061] In some embodiments, during the tunneling operation of the tunneling machine, the horizontal pipe section 341 has a first spray position and a second spray position. In the first spray position, the angle between the extension line of the axis of the horizontal pipe section 341 and the extension line of the axis of the auxiliary tunneling head 6 is an acute angle, and the nozzle 31 and the auxiliary tunneling head 6 performing the tunneling operation are located on the same side of the main tunneling head 5. In the second spray position, the axis of the horizontal pipe section 341 coincides with or is parallel to the axis of the main tunneling head 5.

[0062] By adjusting the horizontal pipe section 341 at the first and second spray positions, the spray surface of the nozzle 31 can accurately remove dust generated during the tunneling of the main tunneling head 5 or the auxiliary tunneling head 6, thereby improving dust removal efficiency and reducing dust diffusion.

[0063] In some embodiments, when the tunneling machine is carrying out mining operations, the baffle 2 is first adjusted to the isolation position, then the position of the nozzle 31 is adjusted and the nozzle 31 is turned on so that the nozzle 31 sprays the dust removal section, and finally the main tunneling head 5 or the auxiliary tunneling head 6 is turned on.

[0064] The dust removal section is first formed by the partition 2, and the nozzle 31 is turned on before the dust is generated, thus ensuring the dust removal effect.

[0065] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" 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 invention and simplifying the description, and are not intended to 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 invention.

[0066] 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0067] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; 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, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0068] In this invention, 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," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0069] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is 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.

[0070] 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 changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A tunneling machine with adjustable ventilation rhythm, characterized in that, include: A self-moving chassis; A partition plate, which is rotatably mounted on the traveling chassis and has an isolation position during rotation, wherein the partition plate divides the roadway and restricts a dust removal roadway section between the partition plate and the working face; A spraying assembly is mounted on the traveling chassis. The spraying assembly includes a nozzle, which is used to spray water into the dust removal tunnel section to remove dust from the dust removal tunnel section. The spraying position and / or spraying direction of the nozzle is adjustable to make the spraying surface of the water sprayed by the nozzle adjustable. The spray assembly includes a spray pipe, which is disposed on the partition and arranged circumferentially along the partition. Spray holes are provided at intervals along the extension direction on the spray pipe, and the spray holes are located on the side of the spray pipe away from the partition. The spray pipe is used to spray the air circulation channel between the roadway and the partition. A support plate is fixedly provided on the chassis. A top support is provided between the support plate and the partition. The two ends of the top support are rotatably connected to the support plate and the partition, respectively, and the length of the top support is adjustable. The top support is used to drive the partition to rotate to the isolation position.

2. The adjustable ventilation rhythm tunneling machine according to claim 1, characterized in that, The spray assembly includes a water pump, the water pump's delivery end of which is connected to both the nozzle and the spray pipe. The nozzle and the spray pipe are used to spray water into the tunnel simultaneously.

3. The adjustable ventilation rhythm tunneling machine according to claim 1, characterized in that, When the sum of the extension length of the partition and the distance from the partition to the roadway floor is less than the height of the roadway, the partition is perpendicular to the traveling chassis in the isolation position. When the sum of the extension length of the partition and the distance from the partition to the roadway floor is not less than the height of the roadway, the partition is inclined relative to the traveling chassis in the isolation position.

4. The adjustable ventilation rhythm tunneling machine according to claim 1, characterized in that, The spray assembly includes a delivery pipe, a spray pipe, and a drive component. The delivery pipe and the spray pipe are rotatably connected and communicate with each other. The other end of the spray pipe is connected to the nozzle. The drive component is driven to the spray pipe and is used to drive the spray pipe to swing around the axis of the spray pipe to adjust the spray position and spray direction of the nozzle.

5. The adjustable ventilation rhythm tunneling machine according to claim 4, characterized in that, The nozzle is L-shaped and includes a horizontal section and a vertical section. The end of the horizontal section is connected to the nozzle, and the end of the vertical section is rotatably connected to the delivery pipe.

6. The adjustable ventilation rhythm tunneling machine according to claim 5, characterized in that, The system includes a robotic arm, one end of which is rotatably connected to the walking chassis, and the other end of which is equipped with a tunneling assembly. The tunneling assembly includes a main tunneling head and two auxiliary tunneling heads, which are used to perform tunneling operations in sequence.

7. The adjustable ventilation rhythm tunneling machine according to claim 6, characterized in that, During the tunneling operation, the horizontal pipe section has a first spray position and a second spray position. At the first spray position, the angle between the extension line of the axis of the horizontal pipe section and the extension line of the axis of the auxiliary tunneling head is an acute angle, and the nozzle and the auxiliary tunneling head performing the tunneling operation are located on the same side of the main tunneling head. At the second spray position, the axis of the horizontal pipe section coincides with or is parallel to the axis of the main tunneling head.

8. The adjustable ventilation rhythm tunneling machine according to claim 7, characterized in that, When the tunneling machine is carrying out mining operations, first adjust the partition to the isolation position, then adjust the nozzle position and turn on the nozzle to spray the dust removal section, and finally turn on the main tunneling head or the auxiliary tunneling head.

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