A spraying dust-settling device of a fully-mechanized coal mining machine

Abstract

The application belongs to the technical field of coal dust reduction, and particularly relates to a spraying dust reduction device of a fully mechanized coal mining machine. The spraying dust reduction device comprises a shell, an atomizing nozzle, a driving assembly and a sliding block. The shell comprises a mounting cavity, and the inner wall of the shell is provided with a sliding rail. The atomizing nozzle is movably arranged in the shell, and at least part of the atomizing nozzle is located outside the mounting cavity and used for spraying water mist to a coal mining head. The driving assembly is arranged in the shell and located in the mounting cavity, and comprises a driving rod. The sliding block is slidably arranged on the sliding rail, one end of the sliding block is movably connected with the driving rod, and the other end of the sliding block is movably connected with the atomizing nozzle through a connecting rod. The driving assembly is used for driving the sliding block to reciprocatingly move along the sliding rail, so as to drive the atomizing nozzle to swing relative to the shell. The atomizing nozzle and the driving assembly are arranged, the driving assembly drives the sliding block to reciprocatingly move on the sliding rail, the atomizing nozzle is driven to swing, coal dust is reduced, the coal mining head is cooled, and the dust reduction effect on the coal dust is improved.

Description

Technical Field

[0001] This application belongs to the field of coal mining dust suppression technology, specifically relating to a spray dust suppression device for a fully mechanized mining machine. Background Technology

[0002] A fully mechanized coal mining machine is a primary coal mining equipment used in underground fully mechanized mining faces, widely applied in automated coal mining operations. It cuts the coal seam with rotary cutters, scraping coal off the coal face and transporting it to the next working stage via a conveyor belt system. Fully mechanized coal mining machines are characterized by high efficiency, continuous operation, and automation, enabling stable operation in complex mining environments, significantly improving coal mining efficiency and reducing manual labor intensity. It is an important component of modern coal mining equipment and is widely used in large-scale coal production; however, the process generates a large amount of coal dust, which can damage the health of workers.

[0003] In related technologies, a dust suppression device for coal mining machines is disclosed. By starting a drive motor, the motor rotates a cam, which in turn causes one end of a connecting rod to rotate. The other end of the connecting rod then drives a rotating rod to swing, causing a fixed disc and an atomizing nozzle to swing. However, the atomizing nozzle is located on one side of the coal mining head. During mining operations, effective dust suppression can only be achieved on one side of the coal mining head; the dust on the other side is blocked by the coal mining head, preventing the atomizing nozzle from effectively suppressing dust. Utility Model Content

[0004] This application aims to address at least one of the technical problems existing in the related art.

[0005] Therefore, this application provides a spray dust suppression device for a fully mechanized mining machine, comprising: a housing, the housing including a mounting cavity, and a slide rail provided on the inner wall of the housing; an atomizing nozzle movably disposed on the housing, at least a portion of the atomizing nozzle being located outside the mounting cavity, for spraying water mist onto the mining head; a drive assembly disposed on the housing and located within the mounting cavity, the drive assembly including a drive rod; and a slider slidably disposed on the slide rail, one end of the slider being movably connected to one end of the drive rod, and the other end being movably connected to the atomizing nozzle via a connecting rod; wherein, the drive assembly is used to drive the slider to reciprocate along the slide rail, thereby causing the atomizing nozzle to swing relative to the housing.

[0006] In one possible implementation, the drive assembly further includes: a central column disposed in the housing and located within the mounting cavity, the central column defining a receiving cavity, the receiving cavity having a lead screw and a threaded block movably sleeved on the lead screw, one end of the lead screw being rotatably disposed on the central column, and the other end extending out of the central column and connected to the drive end of the drive member; a connecting ring movably sleeved on the central column and connected to the threaded block, the connecting ring having a hinge seat on its exterior, the hinge seat being hinged to the end of the drive rod away from the slider; and a limiting rod disposed in the central column and spaced apart from the lead screw, the limiting rod being slidably connected to the threaded block; wherein the drive member is used to drive the lead screw to rotate relative to the central column, causing the threaded block to reciprocate along the limiting rod, thereby causing the connecting ring to reciprocate relative to the central column.

[0007] In one possible implementation, the outer wall of the threaded block is provided with a fixing block and a limiting block, the fixing block passes through the central column and is connected to the inner wall of the connecting ring, and the limiting block is slidably connected to the limiting rod.

[0008] In one possible implementation, two fixing blocks are provided, including a first fixing block and a second fixing block, which are respectively disposed on opposite sides of the threaded block.

[0009] In one possible implementation, two limiting blocks are provided, including a first limiting block and a second limiting block, which are respectively disposed on opposite sides of the threaded block; the connecting line between the first fixing block and the second fixing block intersects or is perpendicular to the connecting line between the first limiting block and the second limiting block.

[0010] In one possible implementation, a plurality of the drive rods are arranged circumferentially at intervals on the connecting ring, and the plurality of drive rods, the plurality of sliders, the plurality of connecting rods and the plurality of atomizing nozzles are connected in a one-to-one correspondence.

[0011] In one possible implementation, one end of the connecting rod is fixedly connected to the slider, and the other end is movably connected to the atomizing nozzle.

[0012] In one possible implementation, the housing further includes: an outer shell having an opening; a partition disposed at the opening of the outer shell, the partition and the outer shell defining the mounting cavity, the partition having a through hole; a slide rail disposed on the partition and adjacent to the through hole, the connecting rod passing through the through hole and connected to the atomizing nozzle.

[0013] In one possible implementation, the spray dust suppression device further includes: a vertical rod passing through the housing, one end of the vertical rod being connected to the atomizing nozzle; and the end of the connecting rod facing away from the slider being movably connected to the vertical rod.

[0014] In one possible implementation, the spray dust suppression device further includes: a water tank; a booster water pump, the inlet of which is connected to the water tank, and the outlet of which is connected to the atomizing nozzle via a water pipe, for conveying water from the water tank to the atomizing nozzle.

[0015] The dust suppression spray device for the fully mechanized mining machine provided in this application can achieve at least the following technical effects: In this application, the dust suppression spray device for a fully mechanized mining machine includes a housing with an installation cavity for assembling an atomizing nozzle, a drive assembly, and a slider. The inner wall of the housing is provided with a slide rail, allowing the slider to slide smoothly and with low friction along a defined track. The atomizing nozzle is movably mounted on the housing, with at least a portion located outside the installation cavity, for spraying water mist onto the mining head. The drive assembly is mounted on the housing and located within the installation cavity, effectively isolating it from coal dust and spray water intrusion. The drive assembly includes a drive rod, which drives the slider to move along the slide rail. The slider is slidably mounted on the slide rail, with one end movably connected to one end of the drive rod, and the other end movably connected to the atomizing nozzle via a connecting rod. The drive rod drives the slider to slide within the slide rail, allowing the atomizing nozzle to oscillate around its hinge point. The drive assembly drives the slider to reciprocate along the slide rail, causing the atomizing nozzle to oscillate relative to the housing. This application sets up an atomizing nozzle and a drive assembly, which causes the drive assembly to drive the slider to reciprocate on the slide rail, thereby causing the atomizing nozzle to swing. This reduces coal dust generation and also cools the coal mining rotor, thus improving the dust suppression effect.

[0016] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0017] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein: Figure 1 This is a schematic diagram of the structure of the spray dust suppression device provided in the embodiments of this disclosure; Figure 2 A schematic diagram of the spray dust suppression device provided in the embodiments of this disclosure under its application state; Figure 3 This is a schematic diagram of the internal structure of the spray dust suppression device provided in the embodiments of this disclosure; Figure 4 A schematic diagram showing the arrangement of the drive assembly and the housing according to an embodiment of this disclosure; Figure 5 for Figure 4 Enlarged structural diagram at point A; Figure 6 for Figure 4 A magnified structural diagram at point B in the middle.

[0018] The reference numerals in the attached figures are as follows: 100: Spray dust suppression device; 101: Housing; 102: Mounting cavity; 103: Slide rail; 104: Atomizing nozzle; 105: Drive assembly; 106: Drive rod; 107: Slider; 108: Connecting rod; 109: Central column; 110: Receiving cavity; 111: Lead screw; 112: Threaded block; 113: Drive component; 114: Connecting ring; 115: Hinge seat; 116: Limiting rod; 117: Fixing block; 118: Limiting block; 119: First fixing block; 120: Second fixing block; 121: First limiting block; 122: Second limiting block; 123: Outer shell; 124: Partition plate; 125: Through hole; 126: Vertical rod; 130: Water tank; 131: Booster pump; 132: Water pipe; 133: Opening; 134: Mounting block; 200: Coal mining turntable. Detailed Implementation

[0019] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0020] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0021] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in the embodiments of this disclosure according to the specific circumstances.

[0022] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0023] Unless otherwise stated, the term "multiple" means two or more.

[0024] It should be noted that, unless otherwise specified, the embodiments and features described in the present disclosure can be combined with each other.

[0025] Combination Figures 1 to 6 As shown, this application provides a spray dust suppression device 100 for a fully mechanized mining machine, including a housing 101, an atomizing nozzle 104, a drive assembly 105, and a slider 107. The housing 101 includes a mounting cavity 102. A slide rail 103 is provided on the inner wall of the housing 101. The atomizing nozzle 104 is movably disposed on the housing 101, with at least a portion of the atomizing nozzle 104 located outside the mounting cavity 102, for spraying water mist onto the mining head 200. The drive assembly 105 is disposed on the housing 101 and located within the mounting cavity 102, and includes a drive rod 106. The slider 107 is slidably disposed on the slide rail 103, with one end of the slider 107 movably connected to one end of the drive rod 106, and the other end of the slider 107 movably connected to the atomizing nozzle 104 via a connecting rod 108. The drive assembly 105 drives the slider 107 to reciprocate along the slide rail 103, thereby causing the atomizing nozzle 104 to swing relative to the housing 101.

[0026] The spray dust suppression device 100 includes a housing 101, which includes a mounting cavity 102 for assembling an atomizing nozzle 104, a drive assembly 105, and a slider 107. The inner wall of the housing 101 is provided with a slide rail 103 to allow the slider 107 to slide smoothly and with low friction along the track defined by the slide rail 103.

[0027] The atomizing nozzle 104 is movably disposed on the housing 101, with at least a portion of the atomizing nozzle 104 located outside the mounting cavity 102, for spraying water mist onto the coal mining rotor 200. That is, the atomizing nozzle 104 may be entirely located outside the mounting cavity 102, or it may be partially located outside the mounting cavity 102.

[0028] The drive assembly 105 is disposed in the housing 101 and located within the mounting cavity 102. The drive assembly 105 includes a drive rod 106. Sealing the drive assembly 105 within the mounting cavity 102 effectively isolates it from the intrusion of coal dust and spray water. By pushing the drive rod 106, the drive slider 107 moves along the slide rail 103, thereby causing the atomizing nozzle 104 to swing up and down relative to the housing 101, realizing water mist spraying on the coal mining rotor 200 during the coal mining process to reduce coal dust.

[0029] Specifically, such as Figure 2 As shown, multiple atomizing nozzles 104 are provided on the outer casing 123. During coal mining, the multiple atomizing nozzles 104 move outward, and the water mist sprayed by the multiple atomizing nozzles 104 can surround the coal dust generated around the entire coal mining rotor 200, increasing the coverage area of ​​the coal dust by the water mist and improving the dust suppression effect. The multiple atomizing nozzles 104 move inward, and the multiple atomizing nozzles 104 spray water mist onto the coal mining rotor 200 in a concentrated manner, reducing the generation of coal dust and also cooling the coal mining rotor 200, reducing safety hazards in the coal mine. In the description of this embodiment, "outward" means that the atomizing nozzles 104 move towards the outer edge of the casing 101, and "inward" means that the atomizing nozzles 104 move towards the center of the casing 101.

[0030] The slider 107 is slidably mounted on the slide rail 103. One end of the slider 107 is movably connected to the drive rod 106, and the other end of the slider 107 is movably connected to the atomizing nozzle 104 through the connecting rod 108. During the process of the drive rod 106 driving the slider 107 to slide within the slide rail 103, the atomizing nozzle 104 can swing around its hinge point, so that the atomizing nozzle 104 can further expand the spraying range by swinging, whether expanding the spraying range or performing concentrated spraying on the coal mining rotor 200.

[0031] In practical applications, combined with Figure 6 As shown, the cross-section of the slider 107 can be U-shaped to facilitate the hinge connection between the slider 107 and the drive rod 106.

[0032] In this embodiment, by setting multiple atomizing nozzles 104 and a connecting ring 114 to drive the drive rod 106 to reciprocate, the drive rod 106 drives the slider 107 to reciprocate on the slide rail 103, thereby driving the atomizing nozzles 104 to move and swing. This can achieve the goal of surrounding the coal dust generated around the entire coal mining head 200 during the coal mining process with water mist sprayed from the atomizing nozzles 104, increasing the coverage area of ​​the water mist on the coal dust, and thus improving the dust suppression efficiency.

[0033] Combination Figures 3 to 5 As shown, in some embodiments, the drive assembly 105 further includes a central column 109, a connecting ring 114, and a limiting rod 116. The central column 109 is disposed in the housing 101 and located within the mounting cavity 102. The central column 109 defines a receiving cavity 110, within which a lead screw 111 and a threaded block 112 movably sleeved on the lead screw 111 are provided. One end of the lead screw 111 is rotatably disposed on the central column 109, and the other end extends out of the central column 109 and is connected to the driving end of the drive member 113. The connecting ring 114 is movably sleeved on the central column 109 and connected to the threaded block 112. A hinge seat 115 is provided on the outside of the connecting ring 114, and the hinge seat 115 is hinged to the end of the drive rod 106 away from the slider 107. The limiting rod 116 is disposed on the central column 109 and spaced apart from the lead screw 111. The limiting rod 116 is slidably connected to the threaded block 112. The drive component 113 is used to drive the lead screw 111 to rotate relative to the central column 109, thereby driving the threaded block 112 to reciprocate along the limiting rod 116, so as to drive the connecting ring 114 to reciprocate relative to the central column 109.

[0034] In this embodiment, the central column 109 serves as the basic support for the entire drive assembly 105. It is disposed in the housing 101 and located within the mounting cavity 102. For example, the central column 109 is fixed within the mounting cavity 102 of the housing 101, providing a stable foundation for the movement of the connecting ring 114. The central column 109 defines a receiving cavity 110, which contains a lead screw 111 and a threaded block 112 movably sleeved on the lead screw 111. One end of the lead screw 111 is rotatably disposed on the central column 109, and the other end extends out of the central column 109 and is connected to the driving end of the drive member 113. The receiving cavity 110 defined by the central column 109 provides movement space for the lead screw 111 and the threaded block 112 movably sleeved on the lead screw 111, and protects the lead screw 111 and the threaded block 112, thereby extending the service life of the equipment. One end of the lead screw 111 is rotatably mounted on the central column 109, and the other end extends out of the central column 109 and is connected to the drive end of the drive member 113. The rotatable mounting of the lead screw 111 on one end of the central column 109 effectively provides a fulcrum, giving the lead screw 111 a fixed axis of rotation. The driving force is directly input from the other end of the lead screw 111, allowing the motor's power to be transmitted to the lead screw 111 directly and via a short path, resulting in high transmission efficiency and rapid response.

[0035] In one possible implementation, the drive unit 113 can be a motor. The drive unit 113 can be powered by a built-in power supply or by AC power, depending on the circumstances.

[0036] The connecting ring 114 is movably sleeved on the central post 109 and connected to the threaded block 112. A hinge seat 115 is provided on the outside of the connecting ring 114, and the hinge seat 115 is hinged to the end of the drive rod 106 away from the slider 107. The connecting ring 114 is directly connected to the threaded block 112, which performs linear reciprocating motion, allowing the connecting ring 114 to perform linear motion. This linear motion is transmitted to the slider 107 in the form of a push-pull force through the drive rod 106 via the external hinge seat 115.

[0037] The limiting rod 116 is fixed inside the central column 109 and spaced apart from the lead screw 111. The limiting rod 116 is slidably connected to the threaded block 112. By setting the limiting rod 116 and making it slidably connected to the threaded block 112, the coordinated operation of the lead screw 111, the threaded block 112, and the limiting rod 116 converts the rotational motion of the lead screw 111 into the linear motion of the threaded block 112. The driving component 113 is used to drive the lead screw 111 to rotate relative to the central column 109, causing the threaded block 112 to reciprocate along the limiting rod 116, thereby causing the connecting ring 114 to reciprocate relative to the central column 109.

[0038] In this embodiment, the lead screw 111 can be a reciprocating lead screw. The specific structure of the reciprocating lead screw adopts relevant technologies. For example, the reciprocating lead screw has two helical grooves with the same pitch and opposite directions of rotation. The two ends are connected by a transition curve. By rotating the reciprocating lead screw, the side of the helical groove pushes the threaded block 112 placed in the helical groove to make axial reciprocating motion.

[0039] Combination Figure 5 As shown, in some embodiments, the outer wall of the threaded block 112 is provided with a fixing block 117 and a limiting block 118. The fixing block 117 passes through the central column 109 and is connected to the inner wall of the connecting ring 114. The limiting block 118 is slidably connected to the limiting rod 116.

[0040] The outer wall of the threaded block 112 is provided with a fixing block 117, which passes through the central column 109 and connects to the inner wall of the connecting ring 114. By providing the fixing block 117 on the outer wall of the threaded block 112, the linear motion of the threaded block 112 inside the cavity 110 of the central column 109 is transmitted to the connecting ring 114 outside the cavity 110, realizing the transition of motion from a closed space to an open space, maximizing the protection of the lead screw 111 and the threaded block 112 while transmitting force. The outer wall of the threaded block 112 is provided with a limiting block 118, which slides with the limiting rod 116, providing the threaded block 112 with a support point other than the lead screw 111 itself, and enabling the linear motion of the threaded block 112.

[0041] In practical applications, the central column 109 has a strip-shaped opening, the width of which is equal to the width of the fixing block 117, allowing the fixing block 117 to pass through the strip-shaped opening on the central column 109 and connect to the inner wall of the connecting ring 114. In some optional embodiments, the width of the strip-shaped opening may be greater than the width of the fixing block 117.

[0042] Specifically, when the drive component 113 drives the lead screw 111 to rotate, the threaded block 112 connected to the lead screw 111 reciprocates along the axial direction of the lead screw 111 through the sliding action of the limiting block 118 on the outer wall of the threaded block 112 and the limiting rod 116 on the inner wall of the central column 109. At the same time, the fixing block 117 passing through the central column 109 drives the connecting ring 114 connected to the threaded block 112 to reciprocate along the axial direction of the lead screw 111.

[0043] Combination Figure 3 and Figure 4 As shown, in some embodiments, two fixing blocks 117 are provided, including a first fixing block 119 and a second fixing block 120, which are respectively disposed on opposite sides of the threaded block 112. Two limiting blocks 118 are provided, including a first limiting block 121 and a second limiting block 122, which are respectively disposed on opposite sides of the threaded block 112. The connecting line between the first fixing block 119 and the second fixing block 120 intersects or is perpendicular to the connecting line between the first limiting block 121 and the second limiting block 122.

[0044] Two fixing blocks 117 are provided, including a first fixing block 119 and a second fixing block 120, which are respectively located on opposite sides of the threaded block 112. The two fixing blocks 117 are connected to the inner wall of the connecting ring 114 on both sides of the threaded block 112. This two-point fixing method enhances the connection rigidity between the threaded block 112 and the connecting ring 114, improving operational stability. Two limiting blocks 118 are provided, including a first limiting block 121 and a second limiting block 122, which are respectively located on opposite sides of the threaded block 112. The two limiting blocks 118 work together to achieve linear movement of the threaded block 112, making the transmission system composed of the lead screw 111, threaded block 112, and limiting rod 116 a rigid integral module capable of withstanding large loads and ensuring long-term reliable operation under complex working conditions.

[0045] The connecting line of the first fixed block 119 and the second fixed block 120 intersects or is perpendicular to the connecting line of the first limit block 121 and the second limit block 122, so as to improve the movement stability of the threaded block 112 on the lead screw 111, so that the threaded block 112 is subjected to balanced force when it moves on the lead screw 111, and further improves the service life of the equipment.

[0046] In practical applications, the connecting line of the first fixing block 119 and the second fixing block 120 intersects or is perpendicular to the connecting line of the first limiting block 121 and the second limiting block 122. Perpendicularity can mean perpendicular or approximately perpendicular.

[0047] Combination Figure 3 and Figure 4 As shown, in some embodiments, multiple drive rods 106 are arranged circumferentially at intervals in the connecting ring 114, and multiple drive rods 106, multiple sliders 107, multiple connecting rods 108 and multiple atomizing nozzles 104 are connected in a one-to-one correspondence.

[0048] In this embodiment, multiple drive rods 106 are arranged circumferentially around the connecting ring 114, and the multiple drive rods 106, multiple sliders 107, multiple connecting rods 108, and multiple atomizing nozzles 104 are connected one-to-one to achieve omnidirectional and uniform spray coverage. Specifically, one end of each drive rod 106 is connected to the connecting ring 114, and the other end of the drive rod 106 is sequentially connected to a slider 107, a connecting rod 108, and an atomizing nozzle 104. The multiple atomizing nozzles 104 move synchronously, resulting in a larger and more uniform water mist coverage area, which more effectively captures and settles coal dust. Furthermore, the multiple atomizing nozzles 104 share the spraying task, reducing the workload of a single atomizing nozzle 104 and extending its service life.

[0049] In one possible implementation, multiple drive rods 106 are evenly arranged circumferentially around the connecting ring 114 to further achieve more uniform water mist coverage.

[0050] Combination Figure 3 , Figure 4 and Figure 6 As shown, in some embodiments, one end of the connecting rod 108 is fixedly connected to the slider 107, and the other end is movably connected to the atomizing nozzle 104.

[0051] In this embodiment, one end of the connecting rod 108 is fixedly connected to the slider 107, transmitting the linear reciprocating motion of the slider 107 on the slide rail 103 to the connecting rod 108. The other end of the connecting rod 108 is movably connected to the atomizing nozzle 104. For example, the other end of the connecting rod 108 is hinged to the atomizing nozzle 104, allowing the atomizing nozzle 104 to deflect at an angle when pushed, thereby converting the linear thrust of the connecting rod 108 into the up-and-down swing of the nozzle. The movable connection (which can be a hinge or a shaft connection) provides a fulcrum for the atomizing nozzle 104 to rotate freely, allowing the atomizing nozzle 104 to swing freely under the push of the connecting rod 108. This enables both large-area coverage spraying and localized concentrated spraying, enhancing the flexibility of dust suppression and cooling.

[0052] Combination Figure 3 , Figure 4 and Figure 6 As shown, in some embodiments, the housing 101 further includes an outer shell 123 and a partition 124, the outer shell 123 having an opening 133. The partition 124 is disposed at the opening 133 of the outer shell 123, the partition 124 and the outer shell 123 defining an installation cavity 102, and the partition 124 has a through hole 125. A slide rail 103 is disposed on the partition 124 and adjacent to the through hole 125, and a connecting rod 108 passes through the through hole 125 and is connected to the atomizing nozzle 104.

[0053] The housing 101 also includes an outer shell 123 and a partition 124. The outer shell 123 has an opening 133. The partition 124 is disposed at the opening 133 of the outer shell 123, and the partition 124 and the outer shell 123 define a mounting cavity 102. The partition 124 has a through hole 125. The housing 101 is divided into two main components: the outer shell 123 and the partition 124. The partition 124 and the outer shell 123 define the mounting cavity 102, which facilitates the installation of structures such as the drive assembly 105, the slider 107, and the slide rail 103. It can also effectively isolate high concentrations of external coal dust, protect the drive assembly 105 (such as the lead screw 111, the threaded block 112, the slider 107, etc.), and avoid or reduce wear, jamming, or electrical failures caused by dust. It isolates water vapor generated by spray and possible direct splashing water, protects internal metal parts, and protects the safe operation of the drive component 113 (motor). The partition 124 has a through hole 125, which provides space for the atomizing nozzle 104 to swing.

[0054] The slide rail 103 is mounted on the partition 124 and adjacent to the through hole 125. The connecting rod 108 passes through the through hole 125 and is connected to the atomizing nozzle 104. By mounting the slide rail 103 on the partition 124 and placing it close to the through hole 125, the slider 107, the connecting rod 108, and the through hole 125 are highly concentrated in space. From the slider 107 to the connecting rod 108 and then to the atomizing nozzle 104, the energy loss of power transmission is small, the transmission rigidity is good, and the response is rapid.

[0055] Combination Figure 2 As shown, in one possible implementation, a mounting block 134 is fixedly connected to the outer surface of the partition 124. The mounting block 134 has an inner cavity, and a driving member 113 is embedded in the inner cavity of the mounting block 134. The driving member 113 is used to drive the lead screw 111 to reciprocate.

[0056] Combination Figure 6 As shown, in some embodiments, the spray dust suppression device 100 further includes a vertical rod 126, which passes through the housing 101, and one end of the vertical rod 126 is connected to the atomizing nozzle 104. The end of the connecting rod 108 away from the slider 107 is movably connected to the vertical rod 126.

[0057] In this embodiment, the spray dust suppression device 100 further includes a vertical rod 126, which passes through the housing 101. One end of the vertical rod 126 is connected to the atomizing nozzle 104. The end of the connecting rod 108 facing away from the slider 107 is movably connected to the vertical rod 126; for example, the end of the connecting rod 108 facing away from the slider 107 is hinged to the vertical rod 126. The vertical rod 126, as an intermediate component, is a key component of the transmission chain between the connecting rod 108 and the atomizing nozzle 104. It helps to position the atomizing nozzle 104 outside the housing 101, thereby reducing the size of the through hole 125 and allowing large particles to enter the mounting cavity 102 as much as possible.

[0058] Combination Figure 3 As shown, in some embodiments, the spray dust suppression device 100 further includes a water tank 130 and a booster pump 131. The inlet of the booster pump 131 is connected to the water tank 130, and the outlet of the booster pump 131 is connected to the atomizing nozzle 104 through a water pipe 132, for conveying water in the water tank 130 to the atomizing nozzle 104.

[0059] In this embodiment, the spray dust suppression device 100 also includes a water tank 130 and a booster pump 131. The inlet of the booster pump 131 is connected to the water tank 130, and the outlet of the booster pump 131 is connected to the atomizing nozzle 104 through a water pipe 132, for transporting water from the water tank 130 to the atomizing nozzle 104. The booster pump 131 can be installed inside the water tank 130 to increase water pressure. The water tank 130 can provide a stable water source, and the booster pump 131 can create high-pressure conditions, converting ordinary water flow into fine water mist. When this water mist is sprayed onto the surface of the high-temperature coal mining rotor 200, it can efficiently remove a large amount of heat through evaporation and heat absorption. Furthermore, the fine water mist generated by high pressure has a large specific surface area, which can more fully encapsulate and adsorb coal dust particles, especially respirable dust that is difficult to capture, thereby improving settling efficiency.

[0060] In practical applications, the water in the water tank 130 can be pumped by the booster pump 131 to the water pipe 132 inside the water tank 130. The water pipe 132 is connected to multiple atomizing nozzles 104 via multiple water pipes. That is, one end of each water pipe penetrates into the water tank 130 and is connected to the water pipe 132, while the other end is connected to an atomizing nozzle 104. The water pipes are flexible hoses, and a sealing ring is provided at the connection between the water pipe and the water tank 130 to improve the sealing.

[0061] In practical application, first fill the water tank 130 with water, then install the spray dust suppression device 100 on the coal mining machine, and then start the coal mining machine while simultaneously starting the drive unit 113 and the booster pump 131 to carry out coal mining work.

[0062] Specifically, during the coal mining process, the booster pump 131 introduces water from the water tank 130 into the atomizing nozzle 104, which forms a water mist that is sprayed out. At the same time, the drive component 113 drives the lead screw 111 to rotate, and the lead screw 111 drives the threaded block 112 to reciprocate within the central column 109. The threaded block 112 drives the connecting ring 114 to reciprocate on the surface of the central column 109. Simultaneously, the connecting ring 114 drives one end of multiple drive rods 106 to move at the same time. The other end of the multiple drive rods 106 pushes and pulls the corresponding slider 107 to slide within the corresponding slide rail 103. The slider 107 pushes the atomizing nozzle 104 to move through the corresponding connecting rod 108. When the multiple atomizing nozzles 104 are in the extended state, they atomize and reduce dust over a large area near the coal mining rotor 200. When the multiple atomizing nozzles 104 are in the retracted state, they spray concentratedly around the coal mining rotor 200, reducing the amount of coal dust generated during coal mining and cooling the rotor 200.

[0063] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application. The above are merely preferred embodiments of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this application, and these improvements and modifications should also be considered within the protection scope of this application.

Claims

1. A spray dust suppression device for a fully mechanized mining machine, characterized in that, include: The housing includes a mounting cavity, and the inner wall of the housing is provided with a slide rail; An atomizing nozzle is movably disposed in the housing, with at least a portion of the atomizing nozzle located outside the mounting cavity, for spraying water mist onto the coal mining rotor; A drive assembly, disposed in the housing and located within the mounting cavity, includes a drive rod; A slider is slidably disposed on the slide rail. One end of the slider is movably connected to one end of the drive rod, and the other end is movably connected to the atomizing nozzle through a connecting rod. The drive assembly is used to drive the slider to reciprocate along the slide rail, thereby causing the atomizing nozzle to swing relative to the housing.

2. The spray dust suppression device according to claim 1, characterized in that, The driving component also includes: A central column is disposed in the housing and located in the mounting cavity. The central column defines a receiving cavity. The receiving cavity is provided with a lead screw and a threaded block movably sleeved on the lead screw. One end of the lead screw is rotatably disposed on the central column, and the other end extends out of the central column and is connected to the driving end of the driving member. A connecting ring is movably sleeved on the central column and connected to the threaded block. A hinge seat is provided on the outside of the connecting ring, and the hinge seat is hinged to the end of the drive rod away from the slider. A limiting rod is provided on the central column and spaced apart from the lead screw; the limiting rod is slidably connected to the threaded block. The driving component is used to drive the lead screw to rotate relative to the central column, thereby causing the threaded block to reciprocate along the limiting rod, and thus causing the connecting ring to reciprocate relative to the central column.

3. The spray dust suppression device according to claim 2, characterized in that, The outer wall of the threaded block is provided with a fixing block and a limiting block. The fixing block passes through the central column and is connected to the inner wall of the connecting ring. The limiting block is slidably connected to the limiting rod.

4. The spray dust suppression device according to claim 3, characterized in that, Two fixing blocks are provided, including a first fixing block and a second fixing block, which are respectively located on opposite sides of the threaded block.

5. The spray dust suppression device according to claim 4, characterized in that, Two limiting blocks are provided, including a first limiting block and a second limiting block, which are respectively provided on opposite sides of the threaded block; The connecting line between the first fixing block and the second fixing block intersects with or is perpendicular to the connecting line between the first limiting block and the second limiting block.

6. The spray dust suppression device according to claim 2, characterized in that, Multiple drive rods are arranged at circumferential intervals on the connecting ring, and the multiple drive rods, multiple sliders, multiple connecting rods and multiple atomizing nozzles are connected in a one-to-one correspondence.

7. The spray dust suppression device according to claim 1, characterized in that, One end of the connecting rod is fixedly connected to the slider, and the other end is movably connected to the atomizing nozzle.

8. The spray dust suppression device according to claim 1, characterized in that, The housing also includes: The outer casing has an opening; A partition is disposed at the opening of the outer shell, the partition and the outer shell defining the mounting cavity, and the partition has a through hole; The slide rail is disposed on the partition and adjacent to the through hole, and the connecting rod passes through the through hole and is connected to the atomizing nozzle.

9. The spray dust suppression device according to claim 1, characterized in that, Also includes: A vertical rod is inserted through the housing, and one end of the vertical rod is connected to the atomizing nozzle; The end of the connecting rod opposite to the slider is movably connected to the vertical rod.

10. The spray dust suppression device according to claim 1, characterized in that, Also includes: Water tank; A booster water pump is provided, with its inlet connected to the water tank and its outlet connected to the atomizing nozzle via a water pipe, for delivering water from the water tank to the atomizing nozzle.

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