Supporting device of fully mechanized coal mining face for mining

Abstract

The supporting device comprises two bases arranged in parallel, at least two sets of hydraulic supporting columns are fixedly arranged at the upper ends of the bases, an adjustable top beam is fixedly arranged at the upper ends of the hydraulic supporting columns, and a first electric push rod used for adjusting the distance is connected between the two bases. The adjustable top beam is composed of a main beam and a telescopic beam. Compared with the prior art, the dust removal device has the advantages that through the arrangement of the continuous protection mechanisms, the gap between the main beams can be continuously shielded, coal gangue is prevented from falling off to threaten the safety of equipment and personnel, and the dust removal device is simple in structure, convenient to use and high in practicability. The dust removal water curtain mechanism integrates a spray head, a water pump, a dust concentration sensor and a controller. The dust concentration sensor performs real-time monitoring, once the dust concentration exceeds the standard, the controller immediately starts the water pump, and the spray head sprays water to reduce dust, so that efficient dust removal is realized, and the clean mining requirement is met.

Description

Technical Field

[0001] This utility model relates to the technical field of hydraulic support devices for fully mechanized mining faces, specifically a support device for fully mechanized mining faces. Background Technology

[0002] In fully mechanized coal mining faces, hydraulic supports are key equipment for ensuring operational safety and efficient production. Currently, split-type supports have emerged, allowing adjustment of the roof beam's support range based on the strength or looseness of the overlying coal and rock. Typically, they consist of two adjustable bases, hydraulic props, and a roof beam. The bases serve as the support foundation, the hydraulic props adjust their height to adapt to different mining environments, and the roof beam directly bears the roof pressure. The support range is altered by adjusting the spacing of the bases.

[0003] However, these split hydraulic supports have significant drawbacks. When adjusting the spacing between the supports, the gaps lack continuous shielding, leaving them unprotected. This allows debris such as coal gangue to easily fall through the gaps during mining, potentially threatening equipment and personnel below and disrupting normal mining operations. Furthermore, traditional supports lack sufficient integration of dust collection functions, often requiring additional complex dust collection equipment. This increases equipment costs and installation / maintenance complexity, and makes it difficult to perform real-time, precise dust collection based on actual dust concentration, failing to meet the demands of efficient and clean mining. Utility Model Content

[0004] (I) Technical Issues

[0005] This utility model provides a support device for fully mechanized mining faces, which solves the problems of lack of protection between the gaps and insufficient integration of dust removal function when adjusting the spacing of split hydraulic supports.

[0006] (II) Technical Content

[0007] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows: a support device for a fully mechanized mining face, comprising two parallel bases, at least two sets of hydraulic props fixedly mounted on the upper end of the bases, an adjustable top beam fixedly mounted on the upper end of the hydraulic props, a first electric push rod for adjusting the spacing between the two bases, and the two bases being slidably connected by a guide mechanism; the adjustable top beam consists of a main beam and a telescopic beam, the main beam having a T-shaped slide rail inside, the telescopic beam achieving lateral telescopic extension and retraction through the T-shaped slide rail, and a second electric push rod for driving the telescopic beam to move embedded and fixed inside the main beam; continuous protective mechanisms for blocking gaps are hinged to the opposite sides of the two main beams, and a dust removal water curtain mechanism is fixedly mounted at the front end of the telescopic beam.

[0008] Furthermore, the continuous protection mechanism includes a side guard plate hinged to the side of the main beam, and a third electric push rod hinged to the bottom surface of the main beam for driving the side guard plate to flip.

[0009] Furthermore, the dust removal water curtain mechanism includes a spray head fixedly mounted on the front end of the telescopic beam, and a water pump fixedly mounted on the upper end of the base. The water pump is connected to the spray head via a hose.

[0010] Furthermore, it also includes a dust concentration sensor fixedly installed on the side of the telescopic beam and a controller fixedly installed on the side of the hydraulic support. Both the dust concentration sensor and the water pump are electrically connected to the controller.

[0011] Furthermore, the guiding mechanism includes an insertion cavity disposed on one side of one of the bases, and a guide rod fixedly disposed on the other side of the base, the guide rod being inserted into the insertion cavity.

[0012] (III) Technical Effects

[0013] The advantages of this utility model compared with the prior art are as follows:

[0014] 1. Gap Protection: A continuous protection mechanism is installed, with hinged, rotatable side guards on opposite sides of the two main beams, driven by a third electric push rod. When the first electric push rod adjusts the distance between the two bases, the side guards continuously block the gap between the main beams, preventing coal and gangue from falling and threatening equipment and personnel safety, thus ensuring smooth mining operations.

[0015] 2. High-efficiency dust removal: The dust removal water curtain mechanism integrates spray nozzles, water pumps, dust concentration sensors, and controllers. The dust concentration sensor monitors in real time; once the concentration exceeds the standard, the controller immediately starts the water pump, spraying water through the spray nozzles to suppress dust, achieving high-efficiency dust removal and meeting the needs of clean mining. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a support device for a fully mechanized mining face according to the present invention. Figure 1 .

[0017] Figure 2 This is a three-dimensional structural diagram of a support device for a fully mechanized mining face according to the present invention. Figure 2 .

[0018] Figure 3 This is a schematic diagram of the main structure of a support device for a fully mechanized mining face according to the present invention.

[0019] Figure 4 This is a right-side structural schematic diagram of a support device for a fully mechanized mining face according to the present invention.

[0020] Figure 5This is a bottom view structural schematic diagram of a support device for a fully mechanized mining face according to the present invention.

[0021] As shown in the figure: 1. Base; 2. Hydraulic support; 3. Adjustable top beam; 4. Continuous protection mechanism; 5. Dust removal water curtain mechanism; 6. Insertion cavity; 7. Guide rod; 8. First electric push rod; 31. Main beam; 32. Telescopic beam; 33. T-shaped slide; 34. Second electric push rod; 41. Side guard plate; 42. Third electric push rod; 51. Spray head; 52. Water pump; 53. Dust concentration sensor; 54. Controller. Detailed Implementation

[0022] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "center", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation structure and operation. Therefore, they should not be construed as limitations on this utility model.

[0023] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "provided with," "installed," "connected," "linked," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] The present invention will now be described in further detail with reference to the accompanying drawings.

[0025] Combined with appendix Figure 1 To be continued Figure 5A support device for a fully mechanized mining face includes two parallel bases 1. At least two sets of hydraulic props 2 are fixedly mounted on the upper end of each base 1. An adjustable top beam 3 is fixedly mounted on the upper end of each hydraulic prop 2. A first electric push rod 8 for adjusting the spacing is connected between the two bases 1, and the two bases 1 are slidably connected by a guide mechanism. The guide mechanism includes a cavity 6 located on the side of one of the bases 1 and a guide rod 7 fixedly mounted on the side of the other base 1. The guide rod 7 is inserted into the cavity 6. The adjustable top beam 3 consists of a main beam 31 and a telescopic beam 32. A T-shaped slide rail 33 is provided inside the main beam 31, and the telescopic beam 32 achieves lateral telescopic movement through the T-shaped slide rail 33. A second electric push rod 34 for driving the telescopic beam 32 is embedded and fixed inside the main beam 31. A continuous protective mechanism 4 for blocking gaps is hinged to the opposite sides of the two main beams 31. A dust removal water curtain mechanism 5 is fixedly mounted at the front end of the telescopic beam 32.

[0026] In this embodiment, as a preferred technical solution, the continuous protection mechanism 4 includes a side guard plate 41 hinged to the side of the main beam 31, and a third electric push rod 42 hinged to the bottom surface of the main beam 31 for driving the side guard plate 41 to flip.

[0027] In this embodiment, as a preferred technical solution, the dust removal water curtain mechanism 5 includes a spray head 51 fixedly installed at the front end of the telescopic beam 32, a water pump 52 fixedly installed at the upper end of the base 1, the water pump 52 being connected to the spray head 51 via a hose, a dust concentration sensor 53 fixedly installed on the side of the telescopic beam 32, and a controller 54 fixedly installed on the side of the hydraulic support 2, both the dust concentration sensor 53 and the water pump 52 being electrically connected to the controller 54.

[0028] The working principle of the support device for a fully mechanized mining face of this utility model is as follows: the distance between the two bases 1 is adjusted by the first electric push rod 8 to adapt to different mining space requirements; the telescopic beam 32 is driven to extend and retract laterally in the T-shaped slide 33 of the main beam 31 by the second electric push rod 34, so as to flexibly adjust the length of the top beam; the third electric push rod 42 in the continuous protection mechanism 4 drives the side guard plate 41 to flip, so as to block the gap between the main beams when adjusting the distance between the bases; the dust concentration sensor 53 in the dust removal water curtain mechanism 5 monitors the ambient dust concentration in real time. When the concentration exceeds the standard, the signal is transmitted to the controller 54, and the controller controls the water pump 52 to work, spraying water through the spray head 51 to reduce dust.

[0029] The working process of the support device for a fully mechanized mining face according to this utility model is as follows:

[0030] 1. Preparation: Move the support device to the mining operation position, ensure that all parts of the equipment are securely connected, and that electrical components such as the controller 54, dust concentration sensor 53, and water pump 52 are in normal working condition, and that the power supply to each electric actuator is normal.

[0031] 2. Adjusting the base spacing: Based on the actual space requirements of the mining site, activate the first electric push rod 8. The telescopic rod of the first electric push rod 8 extends or retracts, pushing the two bases 1 to move relative to each other, changing the distance between the bases 1. During the movement, the guide rod 7 slides within the cavity 6, providing guidance and stability, ensuring the smooth movement of the two bases 1.

[0032] 3. Adjusting the length of the top beam: If it is necessary to adjust the length of the top beam, start the second electric push rod 34. The telescopic rod of the second electric push rod 34 pushes the telescopic beam 32 to move laterally within the T-shaped slide rail 33 inside the main beam 31, thereby adjusting the length of the top beam to better support the top plate.

[0033] 4. Gap Protection: While adjusting the base spacing, activate the third electric push rod 42 in the continuous protection mechanism 4. The telescopic rod of the third electric push rod 42 extends or shortens, causing the side guard plate 41 to rotate around its hinge point with the main beam 31, always keeping the gap between the two main beams 31 covered to prevent coal gangue and other debris from falling. The main beam spacing is adjusted to three levels. The first level is the no-adjustment state, at which time the two main beams are close together. The second level is the single side guard plate width adjustment, at which time only one side guard plate needs to be rotated to the horizontal. The third level is the maximum distance adjustment (width of two side guard plates), at which time both side guard plates need to be rotated to the horizontal.

[0034] 5. Dust Suppression Operation: Dust concentration sensor 53 continuously monitors the dust concentration at the mining site and transmits the monitoring data to controller 54 (PLC controller) in real time. When the dust concentration exceeds the set threshold, controller 54 issues a command to connect the water pump to the water source and start water pump 52. Water pump 52 delivers water to spray head 51 through a hose, and spray head 51 sprays out a fine water mist to suppress dust in the work area. When the dust concentration drops to the normal range, controller 54 controls water pump 52 to stop working, or sets a timer to control the duration of each spray.

[0035] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A support device for a fully mechanized mining face, comprising two parallel bases (1), at least two sets of hydraulic props (2) fixedly mounted on the upper end of each base (1), and an adjustable top beam (3) fixedly mounted on the upper end of each hydraulic prop (2), characterized in that: A first electric push rod (8) for adjusting the spacing is connected between the two bases (1), and the two bases (1) are slidably connected by a guide mechanism; the adjustable top beam (3) is composed of a main beam (31) and a telescopic beam (32). The main beam (31) is provided with a T-shaped slide rail (33), and the telescopic beam (32) achieves lateral extension and retraction through the T-shaped slide rail (33). A second electric push rod (34) for driving the telescopic beam (32) to move is embedded and fixed inside the main beam (31). The two main beams (31) are hinged to each other on opposite sides and are provided with a continuous protective mechanism (4) for blocking the gap. The telescopic beam (32) is fixedly provided with a dust removal water curtain mechanism (5).

2. The support device for a fully mechanized mining face according to claim 1, characterized in that: The continuous protection mechanism (4) includes a side guard plate (41) hinged to the side of the main beam (31), and a third electric push rod (42) hinged to the bottom surface of the main beam (31) for driving the side guard plate (41) to flip.

3. A support device for a fully mechanized mining face according to claim 1, characterized in that: The dust removal water curtain mechanism (5) includes a spray head (51) fixedly installed at the front end of the telescopic beam (32), and a water pump (52) fixedly installed at the upper end of the base (1). The water pump (52) is connected to the spray head (51) through a hose.

4. A support device for a fully mechanized mining face according to claim 3, characterized in that: It also includes a dust concentration sensor (53) fixed on the side of the telescopic beam (32) and a controller (54) fixed on the side of the hydraulic support (2). The dust concentration sensor (53) and the water pump (52) are both electrically connected to the controller (54).

5. A support device for a fully mechanized mining face according to claim 1, characterized in that: The guiding mechanism includes a cavity (6) located on the side of one of the bases (1) and a guide rod (7) fixedly located on the side of the other base (1). The guide rod (7) is inserted into the cavity (6).

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