New tunneling and transfer system

Abstract

This utility model relates to a novel tunneling and transfer system. Existing coal receiving mechanisms are prone to coal accumulation. Therefore, this novel tunneling and transfer system includes a bridge-type transfer machine, a belt conveyor, and a remote control unit. A coal receiving mechanism is located between the two, comprising a movable gantry frame, side baffles, and inclined baffles on both sides. The movable gantry frame includes an upstream movable gantry frame and a downstream movable gantry frame. The two ends of the longitudinal connecting rod are respectively fixed to side columns on the same side. A column is mounted on the crossbeam of the upstream movable gantry frame. A tripod is located below the unloading end frame of the bridge-type transfer machine. A pneumatic or hydraulic telescopic cylinder is installed between the column and the tripod. The pneumatic or hydraulic telescopic cylinder is connected to a high-pressure air supply pipe underground via a solenoid valve assembly. A camera and / or a coal accumulation sensor are installed above the coal receiving trough. The camera and / or the coal accumulation sensor are connected to the signal input terminal of a PLC controller. This novel tunneling and transfer system has a simple structure, is easy to use, and is suitable for use in underground coal mines.

Description

Technical Field

[0001] This utility model relates to a novel tunneling and transportation system. Background Technology

[0002] During tunneling by a roadheader, the excavated coal is transferred to a belt conveyor via a bridge transfer machine. The coal flow output from the bridge transfer machine falls directly onto the belt conveyor belt. During transport, the buffer rollers are easily damaged, causing coal dust to fly and coal and gangue to spill from the belt, requiring laborious cleanup by maintenance personnel, causing unnecessary trouble, and even production stoppages. The removal of gangue and other debris causes significant damage to the equipment. The original coal retaining plate device is easily damaged and does not provide the intended coal receiving effect; it also easily damages the conveyor belt. Furthermore, the coal dust generated during gangue removal poses a risk to worker safety, and the ventilation and fire prevention systems are difficult to manage, seriously impacting actual production.

[0003] Chinese utility model patent CN2877997Y, published on February 12, 2014, discloses a movable buffer bed. This movable buffer bed includes a buffer bed frame, which is composed of legs, crossbeams, and longitudinal beams. It also includes a scoop-shaped buffer bed body, which is inclined and fixed to the buffer bed frame; casters are provided below the legs.

[0004] The moving buffer bed is positioned between the unloading end of the bridge transfer conveyor and the belt conveyor, effectively buffering the impact of falling coal on the belt conveyor. The moving buffer bed only moves when the roadheader shifts forward or backward. During tunneling, coal flow sometimes accumulates on the moving buffer bed, especially when the roadheader is stationary. In severe cases, coal flow may overflow, obstructing coal output and polluting the site environment. Summary of the Invention

[0005] 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 tunneling and transportation system.

[0006] To solve the aforementioned technical problems, this novel tunneling and transfer system includes a bridge-type transfer machine, a belt conveyor, and a remote control unit. A coal receiving mechanism is provided between the two. The coal receiving mechanism includes a movable gantry frame, two side baffles, and an inclined baffle. The movable gantry frame includes a crossbeam and side columns connected to the lower ends of the crossbeam. Rollers are provided at the lower ends of the side columns, which are movably mounted on the load-bearing section frame of the belt conveyor. Longitudinal connecting rods are fixed to the two side columns respectively. The side baffles and inclined baffles are directly or indirectly fixed to adjacent longitudinal connecting rods, forming a coal receiving trough between the side baffles and inclined baffles. The remote control unit includes a PLC controller, a display screen, and operation buttons. The operation buttons communicate with the PLC controller. The input terminal is connected, and the display screen is connected to the signal output terminal of the PLC controller. The mobile gantry includes an upstream mobile gantry and a downstream mobile gantry. The two ends of the longitudinal connecting rod are respectively fixed to the side columns on the same side of the upstream and downstream mobile gantry. A column is provided on the crossbeam of the upstream mobile gantry. A tripod is provided below the unloading end frame of the bridge-type transfer machine. A pneumatic or hydraulic telescopic cylinder is provided between the column and the tripod. The pneumatic or hydraulic telescopic cylinder is connected to a high-pressure air supply pipe underground via a solenoid valve group. A camera and / or a coal pile sensor are provided above the coal receiving trough. The camera and / or the coal pile sensor are connected to the signal input terminal of the PLC controller.

[0007] The extension stroke of the pneumatic or hydraulic telescopic cylinder does not need to be too large, about 200 cm is sufficient.

[0008] With this design, when staff detect coal accumulation on the coal receiving mechanism via camera or coal accumulation sensor, they can activate the pneumatic or hydraulic telescopic cylinder to extend or retract once or multiple times via an operation button. This causes the coal receiving mechanism to move back and forth along the load-bearing section of the belt conveyor once or multiple times, loosening the coal pile and allowing it to fall onto the upper belt of the belt conveyor, where it will be quickly carried away, thus eliminating the coal pile.

[0009] As an optimization, a scoop-shaped receiving plate is also provided above the upstream end of the coal receiving trough, and the lower edge of the scoop-shaped receiving plate has an arc-shaped notch. With this design, more coal flow can fall into the middle area of ​​the upper belt of the belt conveyor.

[0010] As an optimization, multiple chains are suspended from the crossbeams of the upstream moving gantry. This design effectively prevents gangue and coal chunks falling with the coal flow from landing below the unloading end of the bridge transfer machine.

[0011] This new tunneling and transfer system can eliminate coal pile-up using only telescopic pneumatic or hydraulic telescopic cylinders. It has a simple structure, is easy to use, and is suitable for use in underground coal mines. Attached Figure Description

[0012] The following description, in conjunction with the accompanying drawings, further illustrates this novel tunneling and transfer system:

[0013] Figure 1 This is a side view of the air or hydraulic telescopic cylinder in the retracted state at the junction of the bridge transfer machine and the belt conveyor in Embodiment 1 of this novel tunneling and transfer system.

[0014] Figure 2 This is a side view of the air or hydraulic telescopic cylinder in the extended state at the junction of the bridge transfer machine and the belt conveyor in Embodiment 1 of this novel tunneling and transfer system.

[0015] Figure 3 This is a three-dimensional structural diagram of the junction between the bridge transfer machine and the belt conveyor in Embodiment 2 of this novel tunneling and transfer system.

[0016] Figure 4 This is a three-dimensional structural diagram of the crossbeam of the upstream moving gantry and the multiple chains on it in Embodiment 3 of this novel tunneling and transfer system.

[0017] In the diagram: 1 is a bridge-type transfer machine, 2 is a belt conveyor, 3 is a side baffle, 4 is an inclined baffle, 5 is a crossbeam, 6 is a side column, 7 is a roller, 8 is a longitudinal connecting rod, 9 is an upstream moving gantry, 10 is a downstream moving gantry, 11 is a column, 12 is a tripod, 13 is a pneumatic or hydraulic telescopic cylinder, 131 is the cylinder body of the pneumatic or hydraulic telescopic cylinder, 132 is the piston rod of the pneumatic or hydraulic telescopic cylinder, 14 is a camera, 15 is a coal pile sensor, 16 is a scoop-shaped receiving plate, 17 is an arc-shaped notch, 18 is a chain, and 19 is the upper belt of the belt conveyor. Detailed Implementation

[0018] Implementation method one: such as Figure 1-2As shown, this novel tunneling and transfer system includes a bridge-type transfer machine 1, a belt conveyor 2, and a remote control unit (not shown in the figure). A coal receiving mechanism is provided between the two. The coal receiving mechanism includes a movable gantry frame, two side baffles 3, and two inclined baffles 4. The movable gantry frame includes a crossbeam 5 and side columns 6 connected to the lower ends of the crossbeam 5. Rollers 7 are provided at the lower ends of the side columns, and the system is movably mounted on the load-bearing section frame of the belt conveyor 2 via these rollers. Longitudinal connecting rods 8 are fixed to the two side columns 6 respectively. The two side baffles 3 and inclined baffles 4 are directly or indirectly fixed to adjacent longitudinal connecting rods 8. A coal receiving trough is formed between the two side baffles 3 and inclined baffles 4. The remote control unit includes a PLC controller (not shown in the figure), a display screen (not shown in the figure), and operation buttons (not shown in the figure). The operation buttons are connected to the PLC controller signal input... The input end is connected, and the display screen is connected to the signal output end of the PLC controller. The feature is that: the movable gantry frame includes an upstream movable gantry frame 9 and a downstream movable gantry frame 10. The two ends of the longitudinal connecting rod 8 are respectively fixed on the side columns 6 on the same side of the upstream movable gantry frame 9 and the downstream movable gantry frame 10. A column 11 is provided on the crossbeam of the upstream movable gantry frame 9. A tripod 12 is provided below the unloading end frame of the bridge transfer machine. A pneumatic or hydraulic telescopic cylinder 13 is provided between the column and the tripod 12. The pneumatic or hydraulic telescopic cylinder 13 is connected to a high-pressure air supply pipe (not shown in the figure) in the well through a solenoid valve group (not shown in the figure). A camera 14 and / or a coal pile sensor 15 are provided above the coal receiving trough. The camera 14 and / or the coal pile sensor 15 are connected to the signal input end of the PLC controller.

[0019] Implementation Method Two: (e.g.) Figure 3 As shown, a scoop-shaped receiving plate 16 is also provided above the upstream end of the coal receiving trough. The lower edge of the scoop-shaped receiving plate 16 is provided with an arc-shaped notch 17. The rest of the structure is as described in Embodiment 1, and is omitted.

[0020] Implementation Method 3: For example Figure 4 As shown, multiple chains 18 are suspended on the crossbeam 5 of the upstream moving gantry frame 9. The remaining structure is as described in Embodiment 2, and is omitted.

Claims

1. A novel tunneling and transfer system, comprising a bridge-type transfer machine, a belt conveyor, and a remote control unit, with a coal receiving mechanism between them. The coal receiving mechanism includes a movable gantry frame, two side baffles, and an inclined baffle. The movable gantry frame includes a crossbeam and side columns connected to the lower ends of the crossbeam. Rollers are provided at the lower ends of the side columns, which are movably mounted on the load-bearing section frame of the belt conveyor via these rollers. Longitudinal connecting rods are fixed to the two side columns respectively. The two side baffles and the inclined baffles are directly or indirectly fixed to adjacent longitudinal connecting rods, forming a coal receiving trough between the two side baffles and the inclined baffles. The remote control unit includes a PLC controller, a display screen, and operation buttons. The system is characterized by: The mobile gantry includes an upstream mobile gantry and a downstream mobile gantry. The two ends of the longitudinal connecting rod are respectively fixed to the side columns on the same side of the upstream and downstream mobile gantry. A column is provided on the crossbeam of the upstream mobile gantry. A tripod is provided below the unloading end frame of the bridge transfer machine. A pneumatic or hydraulic telescopic cylinder is provided between the column and the tripod. The pneumatic or hydraulic telescopic cylinder is connected to a high-pressure air supply pipe in the mine through a solenoid valve group. A camera and / or a coal pile sensor are provided above the coal receiving trough. The camera and / or the coal pile sensor are connected to the signal input terminal of the PLC controller.

2. The novel tunneling and transfer system according to claim 1, characterized in that: The upper part of the coal receiving trough is also provided with a scoop-shaped receiving plate, and the lower edge of the scoop-shaped receiving plate has an arc-shaped notch.

3. The novel tunneling and transfer system according to claim 1, characterized in that: Multiple chains are suspended from the crossbeam of the upstream moving gantry.

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