A kind of slotting equipment for coal seam gas control

Abstract

The present application provides a kind of slotted equipment for coal seam gas control, belong to coal seam gas control technical field, including two slotted mainframes of synchronous coordination work, two slotted mainframes are arranged in the roadway of coal seam two sides respectively, and two slotted mainframes are driven connection through annular cutting cable between two slotted mainframes;Slotted mainframe includes self-propelled platform, power module, speed reducer, gear reversing device and main drive line wheel are set in self-propelled platform upper portion, power module passes through speed reducer and transmits power to gear reversing device;The present application uses annular cutting cable of cyclic motion as cutting force, and combines the feeding force provided by two slotted mainframes of synchronous coordination work, can cut out one or two slotted in coal seam transversely, instead of traditional high-density drilling, not only greatly reduces labor intensity, saves cost, and the permeability area formed by slotted is larger, more conducive to the desorption of gas, to greatly improve gas extraction efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of coal seam gas control, in particular to a slotting device for coal seam gas control. BACKGROUND

[0002] Before mining, the gas in the coal seam needs to be released and extracted, otherwise there is a great safety hazard. The simplest and most effective method for current gas control is to increase the gas extraction area through high-density drilling, but this gas control method needs intensive drilling, which has the problems of high labor intensity, high labor cost and low efficiency. SUMMARY

[0003] Therefore, the present application provides a slotting device for coal seam gas control, which uses a circular cutting cable in circular motion as a cutting force, and combines with the feeding force provided by two slotting host machines working synchronously and coordinately, so as to cut one or two slots in the coal seam horizontally, instead of traditional high-density drilling, which not only greatly reduces the labor intensity and saves the cost, but also forms a larger permeability area, which is more conducive to the desorption of gas, thereby greatly improving the gas extraction efficiency.

[0004] To solve the above technical problems, the present application provides a slotting device for coal seam gas control, which comprises two slotting host machines working synchronously and coordinately, and the two slotting host machines are arranged in the roadway on both sides of the coal seam, and are connected by a circular cutting cable transmission.

[0005] The slotting host machine comprises a self-walking platform, a power module, a speed reducer, a gear reversing device and a main drive line wheel are arranged on the upper part of the self-walking platform, the power module transmits power to the gear reversing device through the speed reducer, and the main drive line wheel is arranged on the output end of the gear reversing device; the circular cutting cable is wound around the main drive line wheels of the two slotting host machines.

[0006] Further, an auxiliary driving wheel frame is arranged on the self-walking platform, an auxiliary driving line wheel is rotatably arranged on the auxiliary driving wheel frame, the auxiliary driving line wheel is in the same plane as the main drive line wheel, and an upper segment of the circular cutting cable passes through the auxiliary driving line wheel.

[0007] Further, a sensor support is arranged on the self-walking platform, and a tension force sensor for monitoring the tension force of the lower segment of the circular cutting cable is arranged on the sensor support.

[0008] Further, at least one of the upper segment and the lower segment of the circular cutting cable moves with the feeding movement of the two slotting host machines working synchronously and coordinately.

[0009] Further, the upper segment and the lower segment of the circular cutting cable outside the coal seam are guided by guide line wheels.

[0010] Further, the self-walking platform adopts a track type walking platform.

[0011] Further, the self-walking platform adopts a track type walking platform, and the track type walking platform comprises a frame, the bottom of the frame is arranged on a track laid on the ground through a guide wheel, a guide rack is arranged in the middle of the track in the length direction, a rotating power unit is arranged on the frame, the output shaft of the rotating power unit penetrates the frame downward, and a driving gear matched with the guide rack is arranged on the output shaft of the rotating power unit.

[0012] Further, the rotating power unit adopts a hydraulic motor, an electric motor, a pneumatic motor or a transmission connected with another output end of the power module.

[0013] Further, the power module adopts a hydraulic motor, an electric motor or a pneumatic motor.

[0014] Further, the self-walking platform is provided with a protective cover covering the inner side of the main driving line wheel.

[0015] Further, the self-walking platform is provided with a machine shell, and the machine shell is provided with a control system.

[0016] Further, a power source for providing power for the slitting device is further included, and the power source adopts a hydraulic source, an electric power source or a pneumatic source.

[0017] The beneficial effects of the above technical scheme of the present application are as follows:

[0018] 1. The present application adopts a circular cutting rope in circular motion as a cutting force, and combines with the feeding force provided by two slitting main machines working synchronously and coordinately, so that one or two slitting lines can be cut in the coal seam, which replaces the traditional high-density drilling, not only greatly reduces the labor intensity and saves the cost, but also the permeability area formed by the slitting is larger, which is more beneficial to the desorption of gas, so as to greatly improve the gas extraction efficiency.

[0019] 2、The present application, when cutting the coal seam, at least one of the upper section and the lower section of the annular cutting cable moves with the feeding movement of the two synchronous and coordinated working cutting mainframes. When the upper section (or the lower section) of the annular cutting cable moves with the feeding movement of the two synchronous and coordinated working cutting mainframes, the lower section (or the upper section) of the annular cutting cable only needs to be kept in a position, that is, the upper section (or the lower section) of the annular cutting cable can cut a seam in the coal seam; when the upper section and the lower section of the annular cutting cable simultaneously move with the feeding movement of the two synchronous and coordinated working cutting mainframes, two seams in the coal seam can be cut.

[0020] 3、In the working process of the present application, the two cutting mainframes can realize synchronous feeding movement or asynchronous feeding movement through the self-walking platforms of the two cutting mainframes while keeping the synchronous rotation of the main driving line wheels, so that the cutting operation is successfully completed.

[0021] 4、The present application can be controlled through a PLC control system, and the annular cutting cable tension constant control principle is applied to automatically adjust the synchronous speed of the two cutting mainframes according to the change of the cutting force, so that the annular cutting cable is always in the best cutting state. At the same time, the annular cutting cable can be infinitely speed-regulated to select the appropriate speed according to different conditions of the coal seam.

[0022] 5、The PLC control system of the present application has safety protection functions such as broken rope, overload, open-phase, terminal limit, etc., so as to improve the operation safety and reliability.

[0023] 6、When the power source is a hydraulic source, the display screen of the control system in the present application can display the parameters such as hydraulic pressure, flow and rotation speed of the main driving line wheel in real time, so that the operation adjustment is more convenient.

[0024] 7、The coal seam cutting capacity of the present application is strong, and the cutting between the machine lane and the return air lane can be performed at will.

[0025] 8、The present application has a manual and automatic control switching function, and can be completely operated without people when automatically running.

[0026] 9、The present application has a simple structure, and is very convenient to maintain and repair. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a structure top view schematic diagram of the present application for a coal seam gas control cutting equipment;

[0028] Figure 2 It is a structure perspective schematic diagram of the present application for a coal seam gas control cutting equipment;

[0029] Figure 3 It is a structure schematic diagram of the cutting mainframe in the present application;

[0030] Figure 4 This is a schematic diagram of another structure of the slit-cutting host in this invention;

[0031] Figure 5 This is a top view of the structure of the present invention in its working state.

[0032] Figure label:

[0033] Cutting main unit 100; self-propelled platform 110; frame 111; guide wheel 112; track 113; guide rack 114; rotary power unit 115; drive gear 116; housing 117; power module 120; reducer 130; gear commutator 140; main drive sheave 150; protective cover 151; auxiliary drive wheel frame 160; auxiliary drive sheave 170; sensor bracket 180; tension sensor 190; annular cutting cable 200; guide sheave 210; power source 300. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will be described in conjunction with the accompanying drawings of the embodiments of the present invention. Figures 1-5 The technical solutions of the embodiments of the present invention will be clearly and completely described herein. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention are within the scope of protection of the present invention.

[0035] like Figures 1-5 As shown: A slotting device for coal seam gas control includes two slotting main units that work synchronously and in coordination. The two slotting main units are respectively arranged in the roadways on both sides of the coal seam, and the two slotting main units are connected by a ring cutting cable transmission.

[0036] Specifically, such as Figure 1 and Figure 2 As shown, a slotting device for coal seam gas control includes two slotting main units 100 that work synchronously and in coordination. The two slotting main units 100 are respectively arranged in the roadways on both sides of the coal seam, and the two slotting main units 100 are connected by a ring cutting cable 200.

[0037] Among them, such as Figure 3 As shown, the kerf cutting host 100 includes a self-propelled platform 110. The self-propelled platform 110 is equipped with a power module 120, a reducer 130, a gear commutator 140, and a main drive reel 150. The power module 120 transmits power to the gear commutator 140 through the reducer 130. The main drive reel 150 is located at the output end of the gear commutator 140. The annular cutting cable 200 is wound around the main drive reels 150 of the two kerf cutting hosts 100.

[0038] According to one embodiment of the present application, as shown in Figure 3 and Figure 4 The self-walking platform 110 is provided with an auxiliary wheel frame 160, and the auxiliary wire wheel 170 is rotatably arranged on the auxiliary wheel frame 160, the auxiliary wire wheel 170 is in the same plane with the main driving wire wheel 150, and the upper section of the annular cutting rope 200 passes through the auxiliary wire wheel 170.

[0039] According to one embodiment of the present application, as shown in Figure 3 and Figure 4 The self-walking platform 110 is provided with a sensor bracket 180, and the tension sensor 190 for monitoring the tension of the lower section of the annular cutting rope 200 is arranged on the sensor bracket 180.

[0040] According to one embodiment of the present application, the upper section of the annular cutting rope 200 moves with the feeding movement of the two synchronous and coordinated working slit main machines 100, and the lower section of the annular cutting rope only needs to be kept in a position for circulating rotation. In this embodiment, only the upper section of the annular cutting rope 200 moves with the feeding movement of the two synchronous and coordinated working slit main machines 100, and the lower section of the annular cutting rope 200 passes through the through hole opened in the coal seam and keeps circulating rotation in the through hole without moving with the feeding movement of the two synchronous and coordinated working slit main machines 100, that is, the upper section of the annular cutting rope can cut a slit in the coal seam; of course, the lower section of the annular cutting rope 200 can also move with the feeding movement of the two synchronous and coordinated working slit main machines 100, and the upper section of the annular cutting rope 200 passes through the through hole opened in the coal seam and keeps circulating rotation in the through hole without moving with the feeding movement of the two synchronous and coordinated working slit main machines 100, that is, the lower section of the annular cutting rope can cut a slit in the coal seam; of course, the upper section and the lower section of the annular cutting rope can also move with the feeding movement of the two synchronous and coordinated working slit main machines at the same time, so as to cut two slits in the coal seam.

[0041] According to one embodiment of the present application, as shown in Figure 1 and Figure 2 The upper section and the lower section of the annular cutting rope 200 outside the coal seam are guided by the guide wire wheel 210.

[0042] According to one embodiment of the present application, the self-walking platform 110 adopts a track type walking platform, and it is obvious that the self-walking platform 110 is not limited to the track type walking platform, but can also adopt other types, such as a wheel type walking platform or a track type walking platform.

[0043] According to one embodiment of the present application, as shown in Figure 3 andFigure 4 As shown in the figure, the self-walking platform 110 adopts a track walking platform, and the track walking platform comprises a frame 111, the bottom of the frame 111 is arranged on a track 113 laid on the ground through a guide wheel 112, a guide rack 114 is arranged in the middle of the track 113 along the length direction, a rotating power unit 115 is arranged on the frame 111, the output shaft of the rotating power unit 115 penetrates the frame 111 downward, and a driving gear 116 matched with the guide rack 114 is arranged on the output shaft of the rotating power unit 115.

[0044] According to an embodiment of the present application, the rotating power unit 115 adopts a hydraulic motor, and it is obvious that the rotating power unit 115 is not limited to adopt a hydraulic motor, but can also adopt other types, such as an electric motor, or a pneumatic motor, or a transmission connected with another output end of the power module 120.

[0045] According to an embodiment of the present application, the power module 120 adopts a hydraulic motor, and it is obvious that the power module 120 is not limited to adopt a hydraulic motor, but can also adopt other types, such as an electric motor, or a pneumatic motor.

[0046] According to an embodiment of the present application, as shown in the figure, Figure 3 and Figure 4 As shown in the figure, the self-walking platform 110 is provided with a protective cover 151 covering the inside of the main driving line wheel 150.

[0047] According to an embodiment of the present application, as shown in the figure, Figure 4 As shown in the figure, the self-walking platform 110 is provided with a machine shell 117, and the machine shell 117 is provided with a control system.

[0048] According to an embodiment of the present application, as shown in the figure, Figure 1 As shown in the figure, the self-walking platform 110 is provided with a machine shell 117, and the machine shell 117 is provided with a control system.

[0049] The working method (or working principle) of the present application:

[0050] As shown in the figure, the self-walking platform 110 is provided with a machine shell 117, and the machine shell 117 is provided with a control system. Figure 5As shown, the upper section of the annular cutting rope moves with the feeding movement of the two synchronous and coordinated working slit main machines, and the lower section of the annular cutting rope only needs to be kept in a position to work in a circulating rotating state, for example: during work, first, the two slit main machines are arranged in the roadway on both sides of the coal seam respectively, a through hole is drilled in the coal seam by using a drilling machine, the joint of the annular cutting rope is opened and passed through the through hole, then the two ends of the annular cutting rope are installed in the main driving line wheels on the same side, then the joint of the annular cutting rope is connected together to form a ring, the upper section of the annular cutting rope is located at the end of the roadway, the power modules of the two slit main machines are started to drive the two main driving line wheels to work synchronously and coordinately, thereby driving the annular cutting rope to rotate circularly, at the same time, the upper section of the annular cutting rope is cut in the coal seam under the feeding movement of the two slit main machines; during the above process, the feeding movement of the two slit main machines can be synchronous movement or the movement speed of each slit main machine can be adjusted according to actual conditions, so as to smoothly complete the coal seam cutting.

[0051] The present application is not limited to the above working state, and the lower section of the annular cutting rope can also move with the feeding movement of the two synchronous and coordinated working slit main machines, and the upper section of the annular cutting rope only needs to be kept in a position (i.e. passing through the through hole drilled in the coal seam) to work in a circulating rotating state, and the specific working process of the working state is similar to the above working state.

[0052] In addition, the present application can also adopt the upper section and the lower section of the annular cutting rope to move simultaneously with the feeding movement of the two synchronous and coordinated working slit main machines, so as to cut two slits in the coal seam.

[0053] In the present application, unless otherwise explicitly specified and limited, for example, it can be fixedly connected, or detachably connected, or integrated; it can be mechanically connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited, the above-mentioned terms can be understood according to the specific meaning in the present application by the ordinary skilled in the art.

[0054] The above is the preferred embodiment of the present application, it should be pointed out that for the ordinary skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can also be made, which should also be regarded as the protection scope of the present application.

Claims

1. A slotted device for coal seam gas control, characterized in that: The two slit host machines (100) are arranged in the roadway on both sides of the coal seam and are connected by a ring cutting cable (200); The slit host machine (100) comprises a self-walking platform (110), a power module (120), a speed reducer (130), a gear reversing device (140) and a main drive line wheel (150) are arranged on the upper part of the self-walking platform (110), the power module (120) transmits power to the gear reversing device (140) through the speed reducer (130), and the main drive line wheel (150) is arranged at the output end of the gear reversing device (140); and the ring cutting cable (200) is arranged on the main drive line wheel (150) of the two slit host machines (100).

2. The slotted device for coal seam gas control as claimed in claim 1, wherein: An auxiliary driving wheel frame (160) is arranged on the self-walking platform (110), an auxiliary driving line wheel (170) is rotatably arranged on the auxiliary driving wheel frame (160), the auxiliary driving line wheel (170) is in the same plane as the main drive line wheel (150), and the upper section of the ring cutting cable (200) passes through the auxiliary driving line wheel (170).

3. The apparatus for coal seam gas control according to claim 1, wherein: A sensor support (180) is arranged on the self-walking platform (110), and a tension sensor (190) for monitoring the tension of the lower section of the ring cutting cable (200) is arranged on the sensor support (180).

4. The apparatus for coal seam gas control according to claim 1, wherein: At least one of the upper section and the lower section of the ring cutting cable (200) moves with the feeding movement of the two slit host machines (100) working synchronously and coordinately.

5. The apparatus for coal seam gas control according to claim 1, wherein: The upper section and the lower section of the ring cutting cable (200) outside the coal seam are guided by guide line wheels (210).

6. The apparatus for coal seam gas control according to claim 1, wherein: The self-walking platform (110) adopts a track type walking platform.

7. The apparatus for coal seam gas control according to claim 1, wherein: The self-walking platform (110) adopts a track type walking platform, and the track type walking platform comprises a vehicle frame (111), the bottom of the vehicle frame (111) is rotatably arranged on a track (113) laid on the ground through a guide wheel (112), a guide rack (114) is transversely arranged in the middle of the track (113) along the length direction, a rotary power unit (115) is arranged on the vehicle frame (111), the output shaft of the rotary power unit (115) penetrates downward through the vehicle frame (111), and a drive gear (116) matched with the guide rack (114) is arranged on the output shaft of the rotary power unit (115).

8. The apparatus for coal seam gas control according to claim 7, wherein: The rotary power unit (115) adopts a hydraulic motor, an electric motor, a pneumatic motor or a transmission connected with another output end of the power module (120).

9. The apparatus for coal seam gas control according to claim 1, wherein: The power module (120) adopts a hydraulic motor, an electric motor or a pneumatic motor.

10. The slotted device for coal seam gas control according to any one of claims 1 to 9, characterized in that: The self-walking platform (110) is provided with a protective cover (151) covering the inner side of the main drive line wheel (150).

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