Large-dip-angle fully mechanized coal mining face pedestrian assisting device and control system

Abstract

The invention relates to a large-dip-angle fully mechanized coal mining face pedestrian assisting device and a control system, the large-dip-angle fully mechanized coal mining face pedestrian assisting device comprises a hydraulic support 10, an auxiliary walking device 20 is arranged on a base of the hydraulic support, the auxiliary walking device 20 is provided with a rack 21 and a walking belt 22, the rack 21 is provided with a transmission roller 23 and a hydraulic motor 24, the hydraulic motor 24 drives the transmission roller 23, and the transmission roller 23 is driven by the walking belt 22. The transmission roller 23 drives the walking belt 22 to move in the width direction of the hydraulic support. The auxiliary walking device has the beneficial effects that a plurality of auxiliary walking devices which are continuously arranged are adopted, a conveying channel capable of automatically walking is provided for underground constructors, physical output of advancing of the constructors can be remarkably reduced, and safety is improved. The control device can control automatic operation of the pedestrian assisting device according to the movement conditions of people and objects, operation safety is guaranteed, and operation consumption is reduced.

Description

Technical Field

[0001] This invention relates to auxiliary devices in coal mines, and more particularly to an auxiliary pedestrian device and control system for steeply inclined fully mechanized mining faces. Background Technology

[0002] In inclined coal seam mining, the area under the hydraulic supports is a critical passageway for personnel and operations. For fully mechanized mining faces with steep slopes, slippery floors, and limited space, there are significant safety risks. For example, when the dip angle reaches 30°, the physical exertion for personnel walking in a fully mechanized mining face is 2-3 times that in a horizontal roadway. Personnel must resist a downward force equal to approximately 48% of their body weight, doubling the load on their lower limb muscles and easily leading to soreness and fatigue. Existing auxiliary devices mainly include: Pedestrian handrails / guardrails allow people to hold onto them while walking to maintain their balance. Foot pedals / pedestrian steps provide a stable, non-slip foot surface, which is especially important when performing operations that require temporary stopping, such as equipment inspection and maintenance.

[0003] Modular pedestrian platforms, built on some new types of steeply inclined hydraulic supports, integrate handrails, steps, and even simple guardrails into a more complete "pedestrian platform." This platform may move in tandem with the support structure, always providing a relatively safe space for people.

[0004] However, the aforementioned auxiliary devices cannot yet provide automated assistance for movement. Summary of the Invention

[0005] The purpose of this invention is to provide an auxiliary pedestrian device and control system for fully mechanized mining faces with steep inclinations, providing automated auxiliary travel equipment for fully mechanized mining faces with slopes.

[0006] To achieve the above objectives, the technical solution of the present invention is: an auxiliary pedestrian device for a steep-angle fully mechanized mining face, comprising a hydraulic support 10, an auxiliary walker 20 provided on the base of the hydraulic support, the auxiliary walker 20 being provided with a frame 21 and a walking belt 22, the frame 21 being provided with a transmission roller 23 and a hydraulic motor 24, the hydraulic motor 24 driving the transmission roller 23, and the transmission roller 23 driving the walking belt 22 to run along the width direction of the hydraulic support.

[0007] Furthermore, in order to achieve the tilt installation of the auxiliary walking device on the hydraulic support, one side of the frame 21 is hinged to the hydraulic support base 11, and the other side of the frame is provided with a tilt adjustment mechanism 30, which adjusts the angle α between the running direction of the walking belt and the bottom surface of the hydraulic support.

[0008] Furthermore, in order to achieve tilt adjustment of the auxiliary walking device, the tilt adjustment mechanism includes an adjusting shaft head 31, an adjusting shaft seat 32, and an adjusting screw 33. The adjusting shaft head 31 is hinged to the frame, the adjusting shaft seat 32 is fixed on the base 11 of the hydraulic support, one end of the adjusting screw 33 is provided with a screw hinge shaft 34 that is hinged to the adjusting shaft seat, the adjusting screw 33 passes through the adjusting shaft head 31, and the adjusting screw 33 is provided with an adjusting nut 35 for adjusting the position of the adjusting shaft head.

[0009] Furthermore, to protect the safety of personnel on the auxiliary walking device, the auxiliary walking device is equipped with a guardrail 40, which is movably installed on the frame 21 of the auxiliary walking device. The frame of the auxiliary walking device is equipped with guardrail insertion holes 25, and the uprights 41 of the guardrail are inserted into the guardrail insertion holes 25. The uprights 41 of the guardrail are equipped with positioning blocks 42, and the positioning blocks 42 are supported on the frame 21 of the auxiliary walking device.

[0010] Furthermore, in order to form a passage in the inclined coal seam fully mechanized mining face, multiple hydraulic supports 10 are arranged side by side in the inclined coal seam fully mechanized mining face, and multiple auxiliary walking devices 20 are connected end to end on the multiple hydraulic supports.

[0011] A pedestrian auxiliary control system for a steep-angle fully mechanized mining face adopts the aforementioned pedestrian auxiliary device for a steep-angle fully mechanized mining face. The control system is equipped with a detection device that detects personnel and objects on the auxiliary walking device, and the control system controls the movement of the auxiliary walking device.

[0012] Furthermore, in order to ensure the safe movement of personnel, the control method of the control system includes: when two consecutive auxiliary walking devices are carrying personnel or objects, the auxiliary walking device at the rear end in the direction of movement stops.

[0013] Furthermore, in order to improve efficiency and reduce consumption, the control method of the control system includes: in a series of auxiliary walking machines connected end to end, when two consecutive auxiliary walking machines are not carrying personnel or objects, the preceding auxiliary walking machine in the direction of travel stops.

[0014] Furthermore, a control method for achieving automatic start-up includes the following: when the auxiliary walking device is in a stopped state, if two consecutive auxiliary walking devices appear carrying personnel or objects, the auxiliary walking device starts running, and the running direction of the auxiliary walking device is along the direction in which the personnel or objects appear.

[0015] Furthermore, as a preferred detection device, the detection device includes a weighing sensor or an infrared human body sensor, and the control system is equipped with a remote control, which moves with the person on the auxiliary walking device and controls the start and stop of the auxiliary walking device.

[0016] The beneficial effects of this invention are: by using multiple continuously arranged auxiliary walking devices, an automatic walking and conveying channel is provided for underground construction personnel, which can significantly reduce the physical exertion of personnel and improve safety. The control device can control the automatic operation of the auxiliary walking device according to the movement of personnel and objects, ensuring operational safety and reducing operational costs.

[0017] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0018] Figure 1 This is a structural diagram of the invention, showing the auxiliary walking device mounted parallel to the hydraulic support; Figure 2 This is a structural diagram of the invention, showing that the auxiliary walking device is tilted and mounted on a hydraulic support. Figure 3 This is an exploded view of the auxiliary walking device and hydraulic support of the present invention; Figure 4 This is a structural diagram of the walking aid device of the present invention; Figure 5 This is a schematic diagram of the installation of the hydraulic support with an auxiliary walking device in a steeply inclined fully mechanized mining face according to the present invention. The auxiliary walking device is installed parallel to the hydraulic support. Figure 6 This is a schematic diagram of the installation of the hydraulic support with an auxiliary walking device in a steeply inclined fully mechanized mining face according to the present invention. The auxiliary walking device is installed on the hydraulic support at an inclined angle. Figure 7 This is an exploded view of the structure of the walking aid and guardrail of the present invention; Figure 8 This is a structural diagram of the guardrail of the present invention installed on the auxiliary walking device; Figure 9 This is a schematic diagram of an auxiliary walking device with guardrails installed on a steeply inclined fully mechanized mining face. Figure 10 This is a schematic diagram of the inventors walking on the auxiliary walking device; Figure 11 This is a schematic diagram of the control method of the present invention. When two consecutive auxiliary walking devices are carrying personnel, the rear auxiliary walking device stops. Figure 12 This is a schematic diagram of the control method of the present invention. When two consecutive auxiliary walking machines are unloaded, the auxiliary walking machine in the forward direction stops. Figure 13This is a schematic diagram of the control method of the present invention, showing the auxiliary walking device in standby state and personnel entering the auxiliary walking device; Figure 14 This is a schematic diagram of the control method of the present invention. When two consecutive auxiliary walking devices are subjected to loads, the auxiliary walking devices start to run. Detailed Implementation Example

[0019] like Figures 1 to 9 An auxiliary pedestrian device for a steeply inclined fully mechanized mining face includes a hydraulic support 10, with an auxiliary walking device 20 mounted on the base of the hydraulic support.

[0020] The auxiliary walking device 20 includes a frame 21 and a walking belt 22. The frame 21 is equipped with a drive roller 23 and a hydraulic motor 24. The hydraulic motor 24 provides belt drive 26 to drive the drive roller 23, which in turn drives the walking belt 22. The walking belt can be a belt conveyor or a transmission belt. Using a hydraulic motor for drive meets the safety requirements of coal mines.

[0021] The auxiliary walking device 20 is horizontally mounted on the base 11 of the hydraulic support, and the walking belt 22 runs along the width direction of the hydraulic support, such as... Figure 1 As shown.

[0022] One side of the frame 21 is hinged to the hydraulic support base 11, and the other side of the frame 21 is provided with a tilt adjustment mechanism 30. The tilt adjustment mechanism adjusts the angle α between the running direction of the traveling belt and the bottom surface of the hydraulic support. Depending on the tilt direction of the hydraulic support, the tilt adjustment mechanism 30 is located on the lower end of the tilt direction of the hydraulic support, such as... Figure 5 , Figure 6 As shown.

[0023] The frame 21 is provided with a hinge shaft hole 27 and an adjustment shaft hole 28. A hinge shaft seat 12 and an adjustment shaft seat 32 are installed on the hydraulic support base. The hinge shaft hole 27 is rotatably connected to the hinge shaft seat 12 through a hinge shaft 29 (hinged).

[0024] The tilt adjustment mechanism includes an adjusting shaft head 31, an adjusting shaft seat 32, and an adjusting screw 33. The adjusting shaft head 31 is hinged to the adjusting shaft hole 28 of the frame. The adjusting shaft seat 32 is fixed on the base 11 of the hydraulic support. One end of the adjusting screw 33 is provided with a screw hinge shaft 34. The axis of the screw hinge shaft 34 is perpendicular to the adjusting screw 33. The screw hinge shaft 34 is hinged to the adjusting shaft seat 32. The adjusting shaft head 31 is provided with a through hole through which the adjusting screw 33 passes. The adjusting screw 31 is provided with an adjusting nut 35. The adjusting nut 35 is a pair of nuts that can lock the adjusting shaft head 31. The position of the adjusting shaft head on the adjusting screw 33 can be adjusted by adjusting the adjusting nut 35, thereby adjusting the angle α between the running direction of the traveling belt and the bottom surface of the hydraulic support.

[0025] like Figure 5 As shown, the auxiliary pedestrian device for steeply inclined fully mechanized mining faces in this embodiment is used on inclined coal seam fully mechanized mining faces 50. Multiple hydraulic supports 10 are arranged side-by-side on the inclined coal seam fully mechanized mining face 50 to protect the top surface of the mining face. Each hydraulic support 10 is equipped with an auxiliary walking device 20. Multiple auxiliary walking devices 20 are connected end-to-end on multiple hydraulic supports to form a conveyor chain, enabling underground personnel to move around the fully mechanized mining face with the help of the auxiliary walking devices, avoiding the physical exertion caused by climbing slopes.

[0026] Multiple auxiliary walking devices 20 can be set parallel to the bottom surface of the hydraulic support, so that the walking belts 22 of the multiple auxiliary walking devices are connected in plane, such as... Figure 5 As shown, multiple auxiliary walking devices are arranged in parallel, allowing personnel to traverse across multiple auxiliary walking devices 20 on a flat surface, which is particularly suitable for fully mechanized mining faces with relatively small inclination angles. They can also be used to transport items.

[0027] like Figure 6 As shown, the angle α between the running direction of the walking belt and the bottom surface of the hydraulic support can also be adjusted by the tilt adjustment mechanism 30, that is, lifting one end of the auxiliary walking device 20 equipped with the tilt adjustment mechanism, so that the walking belt 22 is parallel to the horizontal plane or the slope is relatively gentle, which is convenient for people to walk or stand. At the junction of the two auxiliary walking devices, the passage is made by going up and down steps.

[0028] This embodiment employs multiple continuously arranged auxiliary walking devices to provide underground construction personnel with an automated walking and conveying channel, significantly reducing the physical exertion required for personnel movement. The auxiliary walking devices are movably mounted on hydraulic supports, allowing them to move with the supports and be easily disassembled. Example

[0029] like Figures 7 to 9 An auxiliary pedestrian device for steeply inclined fully mechanized mining faces. This embodiment is an improvement on Embodiment 1.

[0030] In this embodiment, the auxiliary walking device is equipped with a guardrail 40. The guardrail 40 has uprights 41. The guardrail 40 is movably mounted on the frame 21 of the auxiliary walking device. The frame of the auxiliary walking device has guardrail insertion holes 25, and the uprights of the guardrail 41 are inserted into the guardrail insertion holes 25. The guardrail uprights 41 have positioning blocks 42, which are supported on the frame 21 of the auxiliary walking device. By lifting the guardrail upwards, the guardrail 40 can be easily removed, facilitating personnel access to and from the auxiliary walking device. The guardrail can be installed on one side or both sides of the auxiliary walking device.

[0031] Guardrails can provide safety protection for people on the assistive walking device. Example

[0032] like Figure 4A pedestrian auxiliary control system for a steep-angle fully mechanized mining face, used in the pedestrian auxiliary device for a steep-angle fully mechanized mining face as described in Embodiment 1 or Embodiment 2.

[0033] The control system is equipped with a detection device that can detect personnel and objects on the walking device. In this embodiment, the detection device employs a weighing sensor 61 and an infrared human body sensor 62. Similar to the structure of a belt scale, the weighing sensor has a weighing wheel, which is located inside the frame 21 below the walking belt 22. The weighing sensor can detect whether the walking belt 22 is carrying personnel or objects. The infrared human body sensor 62 is located on one side of the frame 21 and can detect the movement of personnel on the walking belt 22.

[0034] Each unit is equipped with a controller, and multiple controllers are connected to a central control unit (computer).

[0035] The control system in this embodiment controls the movement of the auxiliary walking device.

[0036] To allow for manual control of the auxiliary walking device's start-up and shutdown, the control system includes a remote control. The remote control moves with the operator on the auxiliary walking device and controls its start-up and shutdown. When the operator needs to stop the auxiliary walking device at a specific location to perform work, the remote control can be used to stop its operation.

[0037] Additionally, to stop the system in an emergency, an emergency stop button 13 can be installed on the hydraulic support, such as... Figure 5 As shown. Example

[0038] A method for controlling pedestrians in a steeply inclined fully mechanized mining face, using the control system of Embodiment 3, is used for the safety control of the pedestrian control device in a steeply inclined fully mechanized mining face as described in Embodiment 1 or Embodiment 2.

[0039] The control method of the control system is as follows: among the multiple auxiliary walking devices connected end to end, when two consecutive auxiliary walking devices are carrying people or objects, the auxiliary walking device at the rear end in the direction of movement stops.

[0040] like Figure 10 , Figure 11 The figure shows four hydraulic supports 10 arranged side by side, each equipped with a first auxiliary walking device 201, a second auxiliary walking device 202, a third auxiliary walking device 203, and a fourth auxiliary walking device 204.

[0041] like Figure 10 As shown, the first auxiliary walking device 201 and the third auxiliary walking device 203 each carry a person while moving. Figure 11As shown, under certain circumstances, when personnel on the first auxiliary walking device 201 enter the second auxiliary walking device 202, personnel on the third auxiliary walking device 203 may not yet have entered the fourth auxiliary walking device 204 and may still be moving on the third auxiliary walking device 203. In this situation, given the safety hazard of multiple personnel crowding onto a single auxiliary walking device, the second auxiliary walking device 202 is stopped for safety reasons to prevent personnel from being on the same device simultaneously. The second auxiliary walking device 202 will only restart when personnel on the third auxiliary walking device 203 enter the fourth auxiliary walking device 204. This embodiment prevents congestion in the auxiliary pedestrian device of the steep-angle fully mechanized mining face, eliminating safety hazards. Example

[0042] A method for controlling pedestrians in a steeply inclined fully mechanized mining face, using the control system of Embodiment 3, is used for the performance control of the pedestrian control device in a steeply inclined fully mechanized mining face as described in Embodiment 1 or Embodiment 2.

[0043] The control method of the control system is as follows: among multiple auxiliary walking vehicles connected end-to-end, when two consecutive auxiliary walking vehicles are not carrying personnel or objects, the preceding auxiliary walking vehicle in the direction of travel stops. Furthermore, when the following auxiliary walking vehicle in the direction of travel carries personnel or objects, the preceding auxiliary walking vehicle in the direction of travel starts operating.

[0044] like Figure 12 The four hydraulic supports are equipped with a first auxiliary walking device 201, a second auxiliary walking device 202, a third auxiliary walking device 203, and a fourth auxiliary walking device 204. The first auxiliary walking device 201 and the fourth auxiliary walking device 204 carry personnel, while the second auxiliary walking device 202 and the third auxiliary walking device 203 do not carry personnel. The third auxiliary walking device 203, located in the forward direction, is stopped. It will start running after the personnel on the first auxiliary walking device 201 enter the second auxiliary walking device 202.

[0045] A further control method is that if none of the multiple auxiliary walkers are carrying any people or objects, the auxiliary walker at the head of the conveyor chain will also stop, putting the entire system into a shutdown or standby state.

[0046] This embodiment will cause some unloaded auxiliary walking devices to stop (enter standby mode), reducing power consumption and mechanical wear, thus saving energy and extending equipment life. Example

[0047] A method for controlling pedestrians in a steeply inclined fully mechanized mining face, using the control system of Embodiment 3, is used for the automatic start-up control of the pedestrian auxiliary device in a steeply inclined fully mechanized mining face as described in Embodiment 1 or Embodiment 2.

[0048] The control method of the control system is as follows: when multiple auxiliary walking devices are in a stopped state, if two consecutive auxiliary walking devices appear to carry people or objects, the auxiliary walking devices will start running and the running direction of the auxiliary walking devices will be along the direction in which the people or objects appear.

[0049] like Figure 13 , Figure 14 The four hydraulic supports are equipped with a first auxiliary travel device 201, a second auxiliary travel device 202, a third auxiliary travel device 203, and a fourth auxiliary travel device 204. Initially, the system is in a stopped state, and all four auxiliary travel devices are in a stopped (standby) state. Figure 13 As shown, a person enters the first auxiliary walking device 201, at which point all four auxiliary walking devices remain in a stopped state. Figure 14 As shown, when a person walks from the first auxiliary walking device 201 to the second auxiliary walking device 202, both devices start operating and move in the direction of their appearance, i.e., the direction of movement of the person. Referring to Embodiment 5, in the direction of movement, the second auxiliary walking device 202, following the third auxiliary walking device 203, carries the person, and the third auxiliary walking device 203 also starts operating, ready to receive the person.

Claims

1. A pedestrian auxiliary device for a steep-angle fully mechanized mining face, comprising a hydraulic support (10), characterized in that, An auxiliary walker (20) is provided on the base of the hydraulic support. The auxiliary walker (20) is provided with a frame (21) and a walking belt (22). A transmission roller (23) and a hydraulic motor (24) are provided on the frame (21). The hydraulic motor (24) drives the transmission roller (23), and the transmission roller (23) drives the walking belt (22) to run along the width direction of the hydraulic support.

2. The auxiliary pedestrian device for steep-angle fully mechanized mining faces according to claim 1, characterized in that, One side of the frame (21) is hinged to the hydraulic support base (11), and the other side of the frame is provided with an angle adjustment mechanism (30), which adjusts the angle (α) between the running direction of the walking belt and the bottom surface of the hydraulic support.

3. The auxiliary pedestrian device for steep-angle fully mechanized mining faces according to claim 2, characterized in that, The tilt adjustment mechanism includes an adjustment shaft head (31), an adjustment shaft seat (32), and an adjustment screw (33). The adjustment shaft head (31) is hinged to the frame, and the adjustment shaft seat (32) is fixed on the base (11) of the hydraulic support. One end of the adjustment screw (33) is provided with a screw hinge shaft (34) that is hinged to the adjustment shaft seat (32). The adjustment screw (33) passes through the adjustment shaft head (31), and the adjustment screw (33) is provided with an adjustment nut (35) for adjusting the position of the adjustment shaft head.

4. The auxiliary pedestrian device for steep-angle fully mechanized mining faces according to claim 1, characterized in that, The auxiliary walking device is provided with a guardrail (40), which is movably installed on the frame (21) of the auxiliary walking device. The frame of the auxiliary walking device is provided with a guardrail insertion hole (25), and the upright (41) of the guardrail is inserted into the guardrail insertion hole (25). The upright (41) of the guardrail is provided with a positioning block (42), and the positioning block (42) is supported on the frame (21) of the auxiliary walking device.

5. The auxiliary pedestrian device for steep-angle fully mechanized mining faces according to claim 1, characterized in that, Multiple hydraulic supports (10) are arranged side by side in the inclined coal seam fully mechanized mining face, and multiple auxiliary walking devices (20) are connected end to end on the multiple hydraulic supports.

6. A pedestrian auxiliary control system for a steep-angle fully mechanized mining face, employing the pedestrian auxiliary device for a steep-angle fully mechanized mining face as described in any one of claims 1 to 5, characterized in that, The control system is equipped with a detection device that detects people and objects on the auxiliary walking device (20), and the control system controls the movement of the auxiliary walking device (20).

7. The auxiliary pedestrian control system for steep-angle fully mechanized mining faces according to claim 6, characterized in that, The control method of the control system includes: when two consecutive auxiliary walking devices (20) are carrying people or objects, the auxiliary walking device at the rear end in the direction of movement stops.

8. The pedestrian auxiliary control system for steep-angle fully mechanized mining faces according to claim 6, characterized in that, The control method of the control system includes: when two consecutive auxiliary walking machines (20) are not carrying personnel or objects, the first auxiliary walking machine in the direction of travel stops.

9. The pedestrian auxiliary control system for steep-angle fully mechanized mining faces according to claim 6, characterized in that, The control method of the control system includes: when the auxiliary walking device (20) is in a stopped state, if two consecutive auxiliary walking devices appear to carry personnel or objects, the auxiliary walking device starts to run, and the running direction of the auxiliary walking device runs in the direction in which the personnel or objects appear.

10. The pedestrian auxiliary control system for steep-angle fully mechanized mining faces according to claim 6, characterized in that, The detection device includes a weighing sensor (61) and / or an infrared human body sensor (62). The control system is equipped with a remote control, which moves with the person on the auxiliary walking device and controls the start and stop of the auxiliary walking device (20).

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