Mining mobile platform and using method

Abstract

The invention relates to the technical field of coal mine automation, and discloses a mining mobile platform and a using method.The platform comprises a track, a first air supply pipe, a second air supply pipe, a mobile platform body and a blocking area arranged along one side of the track, and a pneumatic device is arranged on the mobile platform body; a first air supply pipe connected with a pneumatic device pipeline is provided with a valve body for controlling the on-off of the pipeline; the movable platform is further provided with a pneumatic positioner connected with the second air supply pipe through a pipeline, and the end, facing the blocking area, of the telescopic pneumatic positioner is connected with the valve body. A positioning check block is arranged at the designated position in the blocking area in the rail direction, so that the valve body entering the blocking area is triggered by the positioning check block. The platform further comprises a controller for controlling the gas supply state and a pipeline monitor for monitoring the gas state change in the first gas supply pipe. A combined mechanism of the pneumatic positioner and the valve is matched with the positioning check block, positioning of the movable platform is achieved, and the movable platform is suitable for underground coal mines and other places where live-line equipment is strictly controlled.

Description

Technical Field

[0001] The present invention relates to the technical field of coal mine automation, and in particular to a mining mobile platform and a use method thereof. Background Art

[0002] There are many types of mobile platforms at present, most of which adopt electric drive or traction mode, carry electric control actuators to perform certain actions, and realize the positioning of the trolley through electronic positioning components such as proximity switches. However, due to the presence of gas in underground coal mine workplaces, in order to prevent safety accidents such as gas explosions, coal mines have strict control requirements for live equipment, and all live equipment must obtain intrinsic safety or flameproof certification. The maximum power allowed for an intrinsically safe mobile platform is generally less than 12w, and the driving ability, carrying capacity, and power output capacity of the trolley are very limited. The shell steel plate thickness of the flameproof rail mobile platform is relatively large, the volume is large, the overall weight is large, the climbing and turning capabilities are limited, and the installation and erection of the supporting heavy rails are difficult. In addition, the continuous working power supply of the mobile platform underground in coal mines has always been a difficult problem to be solved and broken through. Summary of the invention

[0003] In view of the problems existing in the above-mentioned prior art, the present invention proposes a mobile platform for mining and a method of use, which can realize the movement and positioning of the mobile platform by adopting gas drive and positioning methods. It has the advantages of small size, light weight, large driving force, strong maneuverability, convenient track installation, low cost, no safety hazards, etc., and is suitable for use in high-risk scenes underground in coal mines.

[0004] The present invention discloses a mining mobile platform, comprising: a track, a first air supply pipe, a second air supply pipe, a mobile platform for moving on the track, and a blocking area arranged along one side of the track. The mobile platform is provided with a pneumatic device for providing drive, and the first air supply pipe connected to the pipeline of the pneumatic device is provided with a valve body for controlling the on-off of the pipeline;

[0005] The mobile platform is also provided with a pneumatic positioner connected to the second air supply pipe, and one end of the retractable pneumatic positioner facing the blocking area is connected to the valve body, so as to drive the valve body to enter and exit the blocking area;

[0006] A positioning block is provided at a designated position along the track direction in the blocking area, so that when the mobile platform moves to the corresponding position, the valve body entering the blocking area is triggered by the positioning block;

[0007] The mining mobile platform also includes: a controller for controlling the gas supply status of the first gas supply pipe and the second gas supply pipe; and a pipeline monitor electrically connected to the controller for monitoring changes in the gas state in the first gas supply pipe.

[0008] Further, the mobile platform includes a chassis, a coupling, the pneumatic device is a pneumatic motor, the first air supply pipe is connected to the pneumatic motor for air supply, the coupling is arranged on the chassis, and the pneumatic motor is connected to the coupling to drive the chassis to move;

[0009] The valve body is a mechanical automatic reset valve body.

[0010] Furthermore, the mobile platform also includes an anti-deviation bottom wheel disc, which is connected to the chassis and is slidably connected to the track to prevent the chassis from leaving the track; the pneumatic positioner is a cylinder.

[0011] The present invention also discloses a method for using a mining mobile platform, which is characterized in that the method is applied to the above-mentioned mining mobile platform and comprises:

[0012] The controller controls the first air supply pipe to supply air to the pneumatic device, and the mobile platform moves along the track;

[0013] When the valve body on the mobile platform touches the positioning block, the valve body controls the first air supply pipeline to close, and the air supply device stops providing driving force for the mobile platform;

[0014] The pipeline monitor detects the change of the gas state in the first gas supply pipe and transmits the data to the controller. The controller determines that the mobile platform stops moving based on the received data and performs a count.

[0015] When the mobile platform needs to continue moving, the controller controls the second air supply pipe to supply air to the pneumatic positioner, the pneumatic positioner contracts, driving the valve body to move out of the blocking area, the valve body controls the first air supply pipeline to open, and the pneumatic device continues to drive the mobile platform to move.

[0016] Furthermore, the method also includes: when the mobile platform needs to move backward, the controller controls the pneumatic positioner to retract to avoid the positioning block from blocking the valve body, and controls the pneumatic motor to drive the mobile platform to move backward.

[0017] The present invention also discloses a second mining mobile platform, comprising: a track, a first air supply pipe, a second air supply pipe, a mobile platform for moving on the track, and a blocking area arranged along one side of the track, wherein a pneumatic device for providing drive is arranged on the mobile platform, and a first air supply pipe connected to a pipeline of the pneumatic device is provided with a valve body for controlling the on-off of the pipeline;

[0018] The mobile platform is also provided with a pneumatic positioner connected to the second air supply pipe, and one end of the retractable pneumatic positioner facing the blocking area is connected to the valve body, so as to drive the valve body to enter and exit the blocking area;

[0019] At least one positioning block is provided in the blocking area at a designated position along the track direction, so that when the mobile platform moves to the corresponding position, the valve body entering the blocking area is triggered by the positioning block;

[0020] The mining mobile platform further comprises: a controller for controlling the gas supply status of the first gas supply pipe and the second gas supply pipe.

[0021] Further, the mobile platform includes a chassis, a coupling, and an anti-slip bottom wheel disc, the pneumatic device is a pneumatic motor, the first air supply pipe is connected to the pneumatic motor for air supply, the coupling is arranged on the chassis, and the pneumatic motor is connected to the coupling to drive the chassis to move;

[0022] The valve body is a mechanical automatic reset valve body.

[0023] Furthermore, the mobile platform also includes an anti-deviation bottom wheel disc, which is connected to the chassis and is slidably connected to the track to prevent the chassis from leaving the track;

[0024] The pneumatic positioner is a cylinder.

[0025] The present invention also discloses a method for using a mining mobile platform, which is applied to the second mining mobile platform, and includes:

[0026] The controller starts timing, controls the first air supply pipe to supply air to the pneumatic device, and the mobile platform moves along the track;

[0027] When the valve body on the mobile platform touches the positioning block, the valve body controls the first air supply pipeline to close, and the air supply device stops providing driving force for the mobile platform;

[0028] When the controller reaches the air supply time T, the controller controls the second air supply pipe to supply air to the pneumatic positioner, the pneumatic positioner contracts, drives the valve body to move out of the blocking area, the valve body controls the first air supply pipeline to open, and the pneumatic device continues to drive the mobile platform to move;

[0029] After a certain period of time, the controller controls the pneumatic positioner to extend, and the controller restarts timing the air supply time T;

[0030] Repeat the above steps to achieve positioning.

[0031] Furthermore, the air supply time T is greater than the ratio between the stroke L of the pneumatic motor to the nearest positioning stopper in front and the rated speed S of the pneumatic motor, so as to ensure that the driving device is supplied with air before the valve body touches the positioning stopper.

[0032] Furthermore, the method also includes: when the mobile platform needs to move backward, the controller controls the pneumatic positioner to retract to avoid the positioning block from blocking the valve body, and controls the pneumatic motor to drive the mobile platform to move backward.

[0033] The present invention has at least the following beneficial effects:

[0034] The mobile platform is driven by a pneumatic motor, and the positioning of the pneumatic trolley is achieved through the combination of a pneumatic positioner and a valve. It is suitable for places such as underground coal mines where live equipment is strictly controlled. It has a small size, light weight, light track, strong driving ability, accurate positioning, and high safety, which solves the above problems well.

[0035] Other beneficial effects of the present invention will be described in detail in the specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0037] Figure 1 The invention discloses a structural principle diagram of a mining mobile platform.

[0038] Figure 2 It is a side structural diagram of the mining mobile platform disclosed by the present invention.

[0039] Figure 3 The present invention discloses Figure 2 BB cross-sectional view.

[0040] Figure 4 It is a schematic diagram of the positioning state of the mining mobile platform disclosed in the present invention (part one).

[0041] Figure 5 It is a schematic diagram of the positioning state of the mining mobile platform disclosed in the present invention (part 2).

[0042] Among them, 1-mobile platform, 101-chassis, 102-pneumatic motor, 103-pneumatic positioner, 104-valve body, 1012-coupling, 1013-anti-deviation bottom wheel disc, 2-first air supply pipe, 3-second air supply pipe, 4-track, 5-positioning block, 6-pipeline monitor, 7-controller. DETAILED DESCRIPTION

[0043] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0044] Embodiment 1

[0045] like Figures 1 to 3 A mining mobile platform shown in the figure comprises: a track 4, a first air supply pipe 2, a second air supply pipe 3, a mobile platform 1, and a blocking area arranged along one side of the track 4. A pneumatic device for providing drive is arranged on the mobile platform 1, and a valve body 104 is arranged on the first air supply pipe 2 connected to the pipeline of the pneumatic device. Among them, the mobile platform 1 is arranged on the track 4 and can move on the track 4. The blocking area is parallel to the track 4, and it can be arranged on the ground on the left or right side of the track 4. According to the actual situation and demand, a positioning block 5 is arranged at a designated position along the direction of the track 4 in the blocking area, and the number of the positioning block 5 can be one or more. The pneumatic device is preferably an air motor 102, and the first air supply pipe 2 is connected to the air motor 102 for air supply. The mobile platform 1 comprises a chassis 101, and a coupling 1012 is arranged on the chassis 101. The air motor 102 acts on the coupling 1012 to drive the chassis 101 to move. The valve body 104 can control the on-off of the first air supply pipe 2 , and preferably, the valve body 104 is a mechanical automatically reset valve body.

[0046] The mobile platform 1 is also provided with a pneumatic positioner 103, which can be a retractable cylinder, and the second air supply pipe 3 is connected to the cylinder pipeline to realize air supply. In this embodiment, the retractable direction of the pneumatic positioner 103 is perpendicular to the direction of the track 4, and its end facing the blocking area is connected to the valve body 104, which is used to drive the valve body 104 in and out of the blocking area. If the valve body 104 is in the blocking area, when the mobile platform 1 passes the position corresponding to the positioning block 5, see Figure 4 , the valve body 104 touches the positioning block 5 and switches the on-off state, so that the normally open valve body 104 becomes closed (it can also be closed or depressurized), so that the first air supply pipe 2 can no longer supply air to the pneumatic motor 102, cutting off the power source of the mobile platform 1; if the valve body 104 is outside the blocking area, when the mobile platform 1 passes the positioning block 5, see Figure 5 , the valve body 104 will not touch the positioning stopper 5.

[0047] The mining mobile platform described in this embodiment also includes: a controller 7 and a pipeline monitor 6, wherein the controller 7 is used to control the gas supply status of the first gas supply pipe 2 and the second gas supply pipe 3; the pipeline monitor 6 is electrically connected to the controller 7 and is used to monitor changes in the gas state in the first gas supply pipe 2.

[0048] Embodiment 2

[0049] This embodiment discloses a method for using a mining mobile platform, which is applied to the mining mobile platform disclosed in Embodiment 1. The method includes:

[0050] S1: The controller 7 controls the first air supply pipe 2 to supply air to the pneumatic device, and the mobile platform 1 moves along the track 4.

[0051] S2: When the valve body 104 on the mobile platform 1 contacts the positioning block 5 , the valve body 104 controls the first air supply pipe 2 to be closed, and the air supply device stops providing driving force for the mobile platform 1 .

[0052] S3: The pipeline monitor 6 detects the change of the gas state in the first gas supply pipe 2 and transmits the data to the controller 7. The controller 7 determines that the mobile platform 1 stops moving based on the received data and performs a count.

[0053] S4: When the mobile platform 1 needs to continue moving, the controller 7 controls the second air supply pipe 3 to supply air to the pneumatic positioner 103. The pneumatic positioner 103 contracts, driving the valve body 104 to move out of the blocking area. The valve body 104 controls the first air supply pipe 2 to open, and the pneumatic device continues to drive the mobile platform 1 to move.

[0054] The method of use disclosed in this embodiment also includes: when the mobile platform 1 needs to move backward, the controller 7 controls the pneumatic positioner 103 to retract to avoid the blocking of the valve body 104 by the positioning block 5, and controls the pneumatic motor 102 to drive the mobile platform 1 to move backward.

[0055] Embodiment 3

[0056] like Figures 2 to 4 As shown, this embodiment discloses a mobile platform for mining, comprising: a track 4, a first air supply pipe 2, a second air supply pipe 3, a mobile platform 1 for moving on the track 4, and a blocking area arranged along one side of the track 4. The mobile platform 1 is provided with a pneumatic device for providing drive, and the first air supply pipe 2 connected to the pipeline of the pneumatic device is provided with a valve body 104 for controlling the on-off of the pipeline.

[0057] The mobile platform 1 is also provided with a pneumatic positioner 103 connected to the second air supply pipe 3 . One end of the retractable pneumatic positioner 103 facing the blocking area is connected to the valve body 104 for driving the valve body 104 to enter and exit the blocking area.

[0058] At least one positioning block 5 is provided at a designated position in the blocking area along the direction of the track 4 , so that when the mobile platform 1 moves to the corresponding position, the valve body 104 entering the blocking area is triggered by the positioning block 5 .

[0059] The mining mobile platform further comprises: a controller 7 for controlling the gas supply status of the first gas supply pipe 2 and the second gas supply pipe 3 .

[0060] In this embodiment, the mobile platform 1 includes a chassis 101, a coupling 1012, and an anti-deviation bottom wheel disc 1013. The pneumatic device is an air motor 102. The first air supply pipe 2 is connected to the air motor 102 for air supply. The coupling 1012 is arranged on the chassis 101. The air motor 102 is connected to the coupling 1012 to drive the chassis 101 to move. The anti-deviation bottom wheel disc 1013 connected to the chassis 101 is slidably connected to the track 4 to prevent the chassis 101 from leaving the track 4.

[0061] The pneumatic positioner 103 is a cylinder; the valve body 104 is a mechanical valve body that can automatically reset.

[0062] Embodiment 4

[0063] This embodiment discloses a method for using a mining mobile platform, which is applied to the mining mobile platform as described in the third embodiment, and includes:

[0064] The valve body 104 is in a normally open state, and the controller 7 controls the first air supply pipe 2 to supply air to the pneumatic motor 102, and the pneumatic motor 102 drives the chassis 101 of the mobile platform 1 to move along the track 4. The controller 7 controls the air supply and starts timing at the same time. Before the air supply time T is reached, the controller 7 will control the first air supply pipe 2 to continue to supply air. Preferably, the air supply time T can be determined based on the rated speed of the pneumatic motor 102, and the set air supply time T is much larger than the ratio between the stroke L of the pneumatic motor 102 to the nearest positioning block 5 in front and the rated speed S of the pneumatic motor 102, so as to ensure that the driving device is supplied with air before the valve body 104 touches the positioning block 5.

[0065] When the valve body 104 on the mobile platform 1 touches the positioning block 5, the valve body 104 controls the first air supply pipe 2 to be closed, and the air supply device stops providing driving force for the mobile platform 1. Specifically, a positioning block 5 is set on the side of the track 4 where the mobile platform 1 needs to be positioned. Under normal circumstances, the pneumatic positioner 103 is in an extended state. During the forward movement of the mobile platform 1, the valve body 104 touches the positioning block 5, and the valve body 104 is subjected to force and switches to a closed state (it can also be a closed or pressure-relieved state), and the pneumatic motor 102 loses (or reduces) the gas supply and stops rotating.

[0066] When the controller 7 reaches the air supply time T, the controller 7 controls the second air supply pipe 3 to supply air to the pneumatic positioner 103, and the pneumatic positioner 103 contracts, driving the valve body 104 to move out of the blocking area, and the valve body 104 controls the first air supply pipe 2 to open, and the pneumatic device continues to drive the mobile platform 1 to move;

[0067] After the interval time t, the controller 7 controls the pneumatic positioner 103 to extend, and the controller 7 restarts timing the air supply time T. Preferably, t is equal to or slightly greater than the time required for the pneumatic positioner 103 to move out of the blocking area.

[0068] Repeat the above steps to achieve positioning.

[0069] In this embodiment, the method further includes: when the mobile platform 1 needs to move backward, the controller 7 controls the pneumatic positioner 103 to retract to avoid the positioning block 5 blocking the valve body 104, and controls the pneumatic motor 102 to drive the mobile platform 1 to move backward.

[0070] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A mobile platform for mining, characterized in that: include: A track, a first air supply pipe, a second air supply pipe, a mobile platform for moving on the track, and a blocking area arranged along one side of the track. The mobile platform is provided with a pneumatic device for providing drive, and the first air supply pipe connected to the pipeline of the pneumatic device is provided with a valve body for controlling the on-off of the pipeline; The mobile platform is also provided with a pneumatic positioner connected to the second air supply pipe, and one end of the retractable pneumatic positioner facing the blocking area is connected to the valve body, so as to drive the valve body to enter and exit the blocking area; A positioning block is provided at a designated position along the track direction in the blocking area, so that when the mobile platform moves to the corresponding position, the valve body entering the blocking area is triggered by the positioning block; The mining mobile platform further comprises: a controller for controlling the gas supply status of the first gas supply pipe and the second gas supply pipe; The pipeline monitor electrically connected to the controller is used to monitor the change of the gas state in the first gas supply pipe.

2. The mining mobile platform according to claim 1, characterized in that: The mobile platform includes a chassis and a coupling. The pneumatic device is a pneumatic motor. The first air supply pipe is connected to the pneumatic motor for air supply. The coupling is arranged on the chassis. The pneumatic motor is connected to the coupling to drive the chassis to move. The valve body is a mechanical automatic reset valve body.

3. The mining mobile platform according to claim 2, characterized in that: The mobile platform also includes an anti-deviation bottom wheel disc, which is connected to the chassis and is slidably connected to the track to prevent the chassis from leaving the track; The pneumatic positioner is a cylinder.

4. A method for using a mining mobile platform, characterized in that: The method is applied to a mining mobile platform as claimed in any one of claims 1 to 3, comprising: The controller controls the first air supply pipe to supply air to the pneumatic device, and the mobile platform moves along the track; When the valve body on the mobile platform touches the positioning block, the valve body controls the first air supply pipeline to close, and the air supply device stops providing driving force for the mobile platform; The pipeline monitor detects the change of the gas state in the first gas supply pipe and transmits the data to the controller. The controller determines that the mobile platform stops moving based on the received data and performs a count. When the mobile platform needs to continue moving, the controller controls the second air supply pipe to supply air to the pneumatic positioner, the pneumatic positioner contracts, driving the valve body to move out of the blocking area, the valve body controls the first air supply pipeline to open, and the pneumatic device continues to drive the mobile platform to move.

5. The method for using the mining mobile platform according to claim 4, characterized in that: The method also includes: when the mobile platform needs to move backward, controlling the pneumatic positioner to contract through the controller to avoid the positioning block from blocking the valve body, and controlling the pneumatic motor to drive the mobile platform to move backward.

6. A mobile platform for mining, characterized in that: include: A track, a first air supply pipe, a second air supply pipe, a mobile platform for moving on the track, and a blocking area arranged along one side of the track. The mobile platform is provided with a pneumatic device for providing drive, and the first air supply pipe connected to the pipeline of the pneumatic device is provided with a valve body for controlling the on-off of the pipeline; The mobile platform is also provided with a pneumatic positioner connected to the second air supply pipe, and one end of the retractable pneumatic positioner facing the blocking area is connected to the valve body, so as to drive the valve body to enter and exit the blocking area; At least one positioning block is provided in the blocking area at a designated position along the track direction, so that when the mobile platform moves to the corresponding position, the valve body entering the blocking area is triggered by the positioning block; The mining mobile platform further comprises: a controller for controlling the gas supply status of the first gas supply pipe and the second gas supply pipe.

7. The mining mobile platform according to claim 6, characterized in that: The mobile platform includes a chassis and a coupling. The pneumatic device is a pneumatic motor. The first air supply pipe is connected to the pneumatic motor for air supply. The coupling is arranged on the chassis. The pneumatic motor is connected to the coupling to drive the chassis to move. The valve body is a mechanical automatic reset valve body.

8. The mining mobile platform according to claim 7, characterized in that: The mobile platform also includes an anti-deviation bottom wheel disc, which is connected to the chassis and is slidably connected to the track to prevent the chassis from leaving the track; The pneumatic positioner is a cylinder.

9. A method for using a mining mobile platform, characterized in that: The method is applied to a mining mobile platform as claimed in any one of claims 6 to 8, comprising: The controller starts timing, controls the first air supply pipe to supply air to the pneumatic device, and the mobile platform moves along the track; When the valve body on the mobile platform touches the positioning block, the valve body controls the first air supply pipeline to close, and the air supply device stops providing driving force for the mobile platform; When the controller reaches the air supply time T, the controller controls the second air supply pipe to supply air to the pneumatic positioner, the pneumatic positioner contracts, drives the valve body to move out of the blocking area, the valve body controls the first air supply pipeline to open, and the pneumatic device continues to drive the mobile platform to move; After a certain period of time, the controller controls the pneumatic positioner to extend, and the controller restarts timing the air supply time T; Repeat the above steps to achieve positioning.

10. The method for using the mining mobile platform according to claim 9, characterized in that: The air supply time T is greater than the ratio between the stroke L of the pneumatic motor to the nearest positioning stop in front and the rated speed S of the pneumatic motor to ensure that the drive device is supplied with air before the valve body touches the positioning stop.

11. The method for using the mining mobile platform according to claim 9, characterized in that: The method also includes: when the mobile platform needs to move backward, controlling the pneumatic positioner to contract through the controller to avoid the positioning block from blocking the valve body, and controlling the pneumatic motor to drive the mobile platform to move backward.

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