New fully mechanized coal face mining anchoring integrated equipment

Abstract

The utility model relates to a novel fully mechanized coal face coal mining anchoring integrated equipment, the existing coal mining anchoring integrated equipment is not suitable for the coal seam with low mining height, therefore, the novel fully mechanized coal face coal mining anchoring integrated equipment includes double drum coal cutter and hydraulic anchor rod drilling machine, the top of the body of double drum coal cutter is equipped with two lateral pedestals, one towards fully mechanized coal face slot is equipped on each lateral pedestal, each slot is equipped with a retractable plate, the retractable plate is equipped with a swing oil cylinder near one end of fully mechanized coal face, the hydraulic anchor rod drilling machine has two sets, two hydraulic anchor rod drilling machines are fixed on the swing oil cylinder one by one, the lateral pedestal and retractable plate are equipped with retractable oil cylinder, the retractable oil cylinder is connected with the downhole high pressure liquid supply pipe through the matching operation valve group, and the two ends of retractable oil cylinder are fixed on the lateral pedestal and retractable plate respectively. The novel fully mechanized coal face coal mining anchoring integrated equipment is compact in structure and is suitable for mining the coal seam with low mining height.

Description

Technical Field

[0001] This utility model relates to a novel integrated coal mining and anchoring device for fully mechanized mining faces. Background Technology

[0002] Chinese invention patent document CN104695860B, with an authorization announcement date of May 4, 2018, discloses a fully mechanized mining face anchor drilling rig and an integrated coal mining and anchoring device for fully mechanized mining faces. The fully mechanized mining face anchor drilling rig is a hydraulic anchor drilling rig, installed on a double-drum coal mining machine. The hydraulic anchor drilling rig includes a drill arm mechanism and a drilling mechanism; the drill arm mechanism includes a first drill arm and a second drill arm connected together, or a first drill arm, a second drill arm, and a third drill arm connected together; the hydraulic anchor drilling rig also includes a slewing mechanism for rotating the drill arm mechanism, a lifting and telescopic hydraulic cylinder for raising and lowering the drill arm mechanism, and a safety protection device; the double-drum coal mining machine is equipped with an X-shaped lifting mechanism to facilitate adjustment of the height position of the hydraulic anchor drilling rig. By integrating the twin-drum coal mining machine with the hydraulic anchor bolt drilling rig, the hydraulic anchor bolt drilling rig moves with the twin-drum coal mining machine within the fully mechanized mining face to perform anchoring support or drilling operations on the roof or coal wall. This eliminates the need for manual handling of the anchor bolt drilling rig, improving construction speed and providing safety guarantees for workers.

[0003] This fully mechanized longwall mining face integrated coal mining and anchoring equipment uses an X-shaped lifting mechanism to fix the hydraulic anchor drilling rig to the double-drum coal mining machine. When the X-shaped lifting mechanism is retracted, its height is still relatively high, making it inconvenient to use and its structure is not compact enough, making it unsuitable for mining coal seams with low mining heights. Summary of the Invention

[0004] The technical problem to be solved by this utility model is how to overcome the above-mentioned defects of the prior art and provide a new type of integrated coal mining and anchoring equipment suitable for use in low-mining, high-coal-seam fully mechanized mining faces.

[0005] To solve the above-mentioned technical problems, this novel integrated coal mining and anchoring equipment for fully mechanized mining faces includes a double-drum coal mining machine. The double-drum coal mining machine includes a machine body, with rocker arms at both ends. Each rocker arm is equipped with a toothed drum. A hydraulic anchor drilling rig is directly or indirectly connected to the machine body for anchoring and supporting the roof of the fully mechanized mining face. The hydraulic anchor drilling rig includes a drill arm mechanism and a drilling mechanism mounted on the drill arm mechanism for driving the matching drill rods. Two transverse bases are located at the top of the double-drum coal mining machine body, and each transverse base has a toothed drum. Each slot in the fully mechanized mining face is equipped with a telescopic plate. A swing cylinder is installed at the end of the telescopic plate near the fully mechanized mining face. There are two sets of hydraulic anchor drilling rigs. The two hydraulic anchor drilling rigs are fixed one-to-one on the swing cylinders and can switch between horizontal and vertical states under the drive of the swing cylinders. A telescopic cylinder is installed between the transverse base and the telescopic plate. The telescopic cylinder is connected to the underground high-pressure fluid supply pipe through a valve assembly. Both ends of the telescopic cylinder are fixed to the transverse base and the telescopic plate, respectively. The telescopic cylinder can drive the telescopic plate to retract or extend out of the corresponding slot.

[0006] This design allows the hydraulic anchor bolt drilling rig to be rotated to a horizontal position, reducing its height to a minimum. When the telescopic cylinder retracts the telescopic plate, it becomes more compact, making it suitable for use in coal seams with low extraction depths. The two sets of hydraulic anchor bolt drilling rigs are symmetrical, with balanced weight distribution, and can simultaneously install anchor bolts on both sides, resulting in high efficiency.

[0007] As an optimization, a transverse box-shaped protective cover is provided above the transverse base. This design prevents coal from getting stuck in the gaps between components such as the transverse base, telescopic plate, and telescopic cylinder.

[0008] As an optimization, a longitudinal box-shaped protective cover is also connected to the transverse box-shaped protective cover. The longitudinal box-shaped protective cover has an opening on the side facing the fully mechanized mining face. When the hydraulic anchor bolt drilling rig is rotated to a horizontal position, it can enter and exit the longitudinal box-shaped protective cover through the opening under the action of the telescopic cylinder. This design can prevent coal from getting stuck in the gaps between the components of the hydraulic anchor bolt drilling rig.

[0009] As an optimization, a platform is provided below the swing cylinder. This platform is connected to a telescopic plate, and a movable guardrail is provided on the platform. The movable guardrail surrounds the swing cylinder and is detachably fixed to the platform. With this design, the movable guardrail can be installed during anchor bolt construction to effectively prevent personnel from falling. When not in construction, the movable guardrail can be removed without increasing the overall height.

[0010] This new type of integrated coal mining and anchoring equipment for fully mechanized mining faces has a compact structure and is suitable for use when mining coal seams with low mining heights. Attached Figure Description

[0011] The following description, in conjunction with the accompanying drawings, further illustrates this new integrated coal mining and anchoring equipment for fully mechanized longwall mining faces: Figure 1 This is a three-dimensional structural schematic diagram of one implementation method of the new integrated coal mining and anchoring equipment for fully mechanized mining faces; Figure 2 yes Figure 1 The diagram shows a three-dimensional structural schematic of the anchor bolt construction of the new integrated coal mining and anchoring equipment for fully mechanized mining faces.

[0012] Figure 3 This is a three-dimensional structural diagram of the left-side hydraulic anchor drilling rig and its components, including the transverse box-shaped protective cover and the longitudinal box-shaped protective cover, in the anchor drilling state of the first embodiment of this new type of fully mechanized mining face coal mining and anchoring integrated equipment.

[0013] In the diagram: 1 is the machine body, 2 is the rocker arm, 3 is the toothed drum, 4 is the hydraulic anchor drilling rig, 5 is the horizontal base, 6 is the telescopic plate, 7 is the swing cylinder, 8 is the telescopic cylinder, 9 is the horizontal box-shaped protective cover, 10 is the platform, 11 is the movable guardrail, 12 is the longitudinal box-shaped protective cover, and 13 is the movable flip cover. Detailed Implementation

[0014] Implementation method one: such as Figure 1 , 2 As shown, this novel integrated coal mining and anchoring equipment for fully mechanized mining faces includes a double-drum coal mining machine. The double-drum coal mining machine includes a body 1, with rocker arms 2 at both ends. Each rocker arm 2 is equipped with a toothed drum 3. A hydraulic anchor drilling rig 4 is directly or indirectly connected to the body 1 for anchoring and supporting the roof of the fully mechanized mining face. The hydraulic anchor drilling rig 4 includes a drill arm mechanism and a drilling mechanism mounted on the drill arm mechanism for driving the matching drill rods. The key feature is that the top of the body 1 of the double-drum coal mining machine is provided with two transverse bases 5, each transverse base 5 having a slot facing the fully mechanized mining face. Each slot is equipped with a telescopic plate 6. A swing cylinder 7 is located at the end of the telescopic plate 6 closest to the fully mechanized mining face. There are two sets of hydraulic anchor drilling rigs 4, each fixed to a corresponding swing cylinder 7. These rigs can switch between horizontal and vertical positions under the influence of the swing cylinder 7. A telescopic cylinder 8 is located between the transverse base 5 and the telescopic plate 6. This cylinder 8 is connected to a downhole high-pressure fluid supply pipe (not shown in the figure) via a valve assembly (not shown in the figure). Both ends of the cylinder 8 are fixed to the transverse base 5 and the telescopic plate 6, respectively. The cylinder 8 can retract or extend the telescopic plate 6 into the corresponding slot. A transverse box-shaped protective cover 9 is located above the transverse base 5. A platform 10 is located below the swing cylinder 7. This platform 10 is connected to the telescopic plate 6. A movable guardrail 11 surrounds the swing cylinder 7 and is detachably fixed to the platform 10.

[0015] Implementation Method Two: (e.g.) Figure 3 As shown, a longitudinal box-shaped protective cover 12 is also connected to the transverse box-shaped protective cover 9. The longitudinal box-shaped protective cover 12 has an opening on the side facing the fully mechanized mining face. The opening has a movable flip cover 13. When the movable flip cover 13 is flipped up and the hydraulic anchor drilling rig 4 is rotated to a horizontal state, it can enter and exit the longitudinal box-shaped protective cover 12 through the opening under the drive of the telescopic cylinder 8. The remaining structure is as shown in Embodiment 1, and the figure is omitted.

Claims

1. A novel integrated coal mining and anchoring equipment for fully mechanized mining faces, comprising a double-drum coal mining machine, the double-drum coal mining machine comprising a machine body, with rocker arms respectively provided at both ends of the machine body, each rocker arm being provided with a toothed drum, and a hydraulic anchor drilling rig directly or indirectly connected to the machine body for anchoring and supporting the roof of the fully mechanized mining face, the hydraulic anchor drilling rig comprising a drill arm mechanism and a drilling mechanism mounted on the drill arm mechanism for driving matching drill rods, characterized in that: The top of the double-drum coal mining machine is equipped with two transverse bases. Each transverse base has a slot facing the fully mechanized mining face. Each slot contains a telescopic plate. The telescopic plate has a swing cylinder at the end near the fully mechanized mining face. There are two sets of hydraulic anchor drilling rigs. The two hydraulic anchor drilling rigs are fixed one-to-one on the swing cylinders and can switch between horizontal and vertical states under the action of the swing cylinders. A telescopic cylinder is installed between the transverse bases and the telescopic plates. The telescopic cylinder is connected to the underground high-pressure fluid supply pipe through a valve assembly. Both ends of the telescopic cylinder are fixed to the transverse bases and the telescopic plates, respectively. The telescopic cylinder can drive the telescopic plate to retract or extend from the corresponding slot.

2. The novel fully mechanized mining face coal anchoring integrated equipment according to claim 1, characterized in that: A horizontal box-shaped protective cover is provided above the horizontal base.

3. The novel fully mechanized mining face coal anchoring integrated equipment according to claim 2, characterized in that: The transverse box-shaped protective cover is also connected to a longitudinal box-shaped protective cover. The longitudinal box-shaped protective cover has an opening on the side facing the fully mechanized mining face. When the hydraulic anchor drilling rig is rotated to a horizontal state, it can enter and exit the longitudinal box-shaped protective cover through the opening under the drive of the telescopic oil cylinder.

4. The novel fully mechanized mining face coal anchoring integrated equipment according to any one of claims 1-3, characterized in that: A platform is provided below the swing cylinder, which is connected to the telescopic plate. The platform is equipped with a movable guardrail that surrounds the swing cylinder and is detachably fixed to the platform.

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