Angle-adjustable coal mining tunneling equipment

Abstract

The invention relates to the field of coal mining, and particularly discloses angle-adjustable coal mining tunneling equipment which comprises a tunneling mechanism and a protection mechanism, the protection mechanism comprises a middle baffle piece, a fixing clamp piece is arranged on the upper side of the middle baffle piece, and a set of side baffle pieces are rotationally installed on the outer side of the middle baffle piece; a transmission piece slides at the bottom of the middle baffle piece in a limiting manner; the linear sliding of the transmission part is driven by the oil cylinder, the side baffle parts are driven to rotate around the middle baffle part, and the dynamic adjustment of the protection angle is realized; by means of the design, the equipment can flexibly adjust the protection range according to the working conditions such as the underground roadway shape and the coal rock caving direction, the complex and changeable tunneling environment is effectively adapted, and the protection effect on operators and the equipment is improved; the tail end of the side baffle body is integrated with a sprinkler head and a water inlet and directly connected with a water supply system; when the side baffles rotate to the working positions, the water spraying heads can synchronously cover the tunneling area, and coal dust diffusion is efficiently restrained.

Description

Technical Field

[0001] The invention belongs to the field of coal mining, in particular to an angle-adjustable coal mining tunneling device. Background Art

[0002] During tunneling operations in coal mines, the exposed coal and rock layers in front of the equipment generate a large amount of high-concentration dust during mechanical cutting. According to measured data, the total dust concentration in the fully mechanized tunneling working face can reach 1000–3000 mg / m 3 Respirable dust accounts for over 40% of the total, posing a serious threat to miners' occupational health (such as causing pneumoconiosis) and increasing the risk of coal dust explosions. To control dust dispersion, current industry standards mandate that tunneling equipment be equipped with protective devices and spray dust suppression systems.

[0003] The existing technology generally adopts a combination of fixed metal baffles and independent spray devices:

[0004] Baffle structure: usually a welded rigid metal frame, fixed in front of the tunneling equipment, used to prevent the collapse of coal and rock and the spread of some dust;

[0005] Spray system: It consists of several independent nozzles, water supply pipes and control valves. The nozzles are mostly installed on the outside of the baffle or on the bracket near the tunneling head.

[0006] However, the fixed angle of the protective baffles cannot be adjusted, making it difficult to adapt to changes in the inclination of different tunnel sections or the need to adjust the position of the tunneling head. When the equipment is operating in complex geological conditions (such as faults and folded areas), the fixed baffles are prone to interfering with the tunnel wall, forcing the equipment to stop and adjust manually, seriously reducing tunneling efficiency. Summary of the Invention

[0007] In order to solve the above technical problems, the present invention provides an angle-adjustable coal mining tunneling equipment to solve the problems of poor adaptability caused by the non-adjustable angle of the protective baffle in the prior art and low dust removal efficiency caused by the separation of the spray system and the baffle.

[0008] An angle-adjustable coal mining tunneling equipment includes a tunneling mechanism and a protective mechanism:

[0009] The protection mechanism includes a middle baffle, a fixed clamp is provided on the upper side of the middle baffle, a group of side baffles are rotatably mounted on the outer side of the middle baffle, a transmission member is limited and slidably provided at the bottom of the middle baffle, and a cylinder is further provided on one side of the transmission member;

[0010] One end of the oil cylinder is fixed to the middle baffle, and the other end of the oil cylinder is fixed to the transmission member. The transmission member is limited and slidably embedded in the bottom of the middle baffle, and the transmission member drives the side baffle to rotate.

[0011] The side baffle member comprises a side baffle body, and an outer end of the side baffle body is fixedly connected with a water spray head and a water inlet that are communicated with each other, and the water inlet is connected to a water supply system.

[0012] Preferably, the middle baffle member includes a middle baffle body, and a limit plate is fixed to the outer side of the middle baffle body;

[0013] The side baffle member includes a side baffle body, and a rotating rod is fixed to one end of the side baffle body away from the water spray head;

[0014] The rotating rod is limited and rotated to be embedded in the middle baffle body, and the limiting plate limits the side baffle body.

[0015] Preferably, a guide frame is fixed to the lower end of the middle baffle body;

[0016] A gear is also fixed to one end of the rotating rod;

[0017] The transmission member includes an I-shaped transmission frame, a rack is fixed on the outside of the I-shaped transmission frame, and a fixing block is also fixed on the bottom of the I-shaped transmission frame;

[0018] The gear and the rack are meshed with each other, and the I-shaped transmission frame is limited and slidable on the guide frame;

[0019] One end of the oil cylinder is fixed on the fixed block, and the other end of the oil cylinder is fixed on the guide frame.

[0020] Preferably, the fixing clamp comprises a fixed hoop and a movable hoop, and a bolt is passed through and fixed between the fixed hoop and the movable hoop.

[0021] Preferably, the tunneling mechanism includes a tunneling body, a rotary assembly is mounted on the tunneling body, a main hydraulic cylinder is movably mounted on the rotary assembly via an oil cylinder, and a tunneling head is mounted on the movable end of the main hydraulic cylinder.

[0022] Preferably, a bucket-type collecting device is also installed at the front lower end of the tunneling body, and a conveyor belt is installed at the bottom of the tunneling body.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] The hydraulic cylinder drives the linear sliding of the transmission element, which drives the side baffles to rotate around the middle baffle, achieving dynamic adjustment of the protection angle. This design enables the equipment to flexibly adjust the protection range according to the working conditions such as the shape of the underground tunnel and the direction of coal and rock collapse, effectively adapting to the complex and changing tunneling environment and improving the protection effect for operators and equipment.

[0025] The end of the side baffle body is integrated with a sprinkler head and a water inlet, which are directly connected to the water supply system; when the side baffle is rotated to the working position, the sprinkler head can simultaneously cover the excavation area, effectively suppressing the spread of coal dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 It is a schematic diagram of the decomposition structure of the present invention;

[0028] Figure 3 It is a structural schematic diagram of the protection mechanism of the present invention;

[0029] Figure 4 It is a structural schematic diagram of the fixing clamp of the present invention;

[0030] Figure 5 It is a structural schematic diagram of the side baffle member of the present invention;

[0031] Figure 6 It is a structural schematic diagram of the transmission member of the present invention;

[0032] Figure 7 It is a structural schematic diagram of the tunneling mechanism of the present invention.

[0033] In the figure: 1. Tunneling mechanism; 11. Tunneling body; 12. Rotation assembly; 13. Main hydraulic cylinder; 14. Tunneling head; 15. Bucket-type collecting device; 16. Conveyor belt; 2. Protective mechanism; 21. Middle baffle member; 211. Middle baffle body; 212. Limiting plate; 213. Guide frame; 22. Fixed clamp member; 221. Fixed hoop; 222. Movable hoop; 223. Bolt; 23. Side baffle member; 231. Side baffle body; 232. Sprinkler head; 233. Water inlet; 234. Rotating rod; 235. Gear; 24. Transmission member; 241. I-shaped transmission frame; 242. Rack; 243. Fixed block; 25. Cylinder. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] like Figures 1 to 6 As shown:

[0036] Embodiment 1: The present invention provides an angle-adjustable coal mining tunneling device, comprising a tunneling mechanism 1 and a protection mechanism 2:

[0037] The protection mechanism 2 includes a middle baffle 21, a fixed clamp 22 is provided on the upper side of the middle baffle 21, a set of side baffles 23 are rotatably mounted on the outer side of the middle baffle 21, and a transmission member 24 is limited and slidable at the bottom of the middle baffle 21, and a cylinder 25 is also provided on one side of the transmission member 24;

[0038] One end of the oil cylinder 25 is fixed to the middle baffle 21, and the other end of the oil cylinder 25 is fixed to the transmission member 24. The transmission member 24 is limited and slidably embedded in the bottom of the middle baffle 21, and the transmission member 24 drives the side baffle 23 to rotate.

[0039] The side baffle member 23 includes a side baffle body 231 , and an outer end of the side baffle body 231 is fixedly connected to a water spray head 232 and a water inlet 233 that are interconnected. The water inlet 233 is connected to a water supply system.

[0040] As can be seen from the above, when working, the control cylinder 25 performs telescopic movement, which directly drives the transmission member 24. Since the transmission member 24 is limited and slidingly embedded in the bottom of the middle baffle member 21, the transmission member 24 slides linearly along the limit track;

[0041] The linear sliding of the transmission member 24 further drives a group of side baffle members 23 connected thereto, causing the side baffle members 23 to rotate around the rotation mounting point between the side baffle members 23 and the middle baffle member 21 .

[0042] This enables the protective mechanism to spray water directly into the excavation work area while providing physical protection, effectively achieving the purpose of spray dust reduction and improving the working environment.

[0043] like Figures 3 to 6 As shown:

[0044] Embodiment 2: This embodiment is basically the same as the previous embodiment, except that the middle baffle member 21 includes a middle baffle body 211 , and a limit plate 212 is fixed to the outer side of the middle baffle body 211 ;

[0045] The side baffle member 23 includes a side baffle body 231 , and a rotating rod 234 is fixed to one end of the side baffle body 231 away from the water spray head 232 ;

[0046] The rotating rod 234 is locked on the middle baffle body 211 for limited rotation, and the limiting plate 212 limits the side baffle body 231 .

[0047] Specifically, a guide frame 213 is fixed to the lower end of the middle baffle body 211;

[0048] A gear 235 is also fixed to one end of the rotating rod 234;

[0049] The transmission member 24 includes an I-shaped transmission frame 241, a rack 242 is fixed to the outside of the I-shaped transmission frame 241, and a fixing block 243 is also fixed to the bottom of the I-shaped transmission frame 241;

[0050] The gear 235 and the rack 242 are meshed with each other, and the I-shaped transmission frame 241 is limited and slidable on the guide frame 213;

[0051] One end of the oil cylinder 25 is fixed to the fixing block 243 , and the other end of the oil cylinder 25 is fixed to the guide frame 213 .

[0052] Specifically, the fixed clamp 22 includes a fixed hoop 221 and a movable hoop 222 , and a bolt 223 is passed through and fixed between the fixed hoop 221 and the movable hoop 222 .

[0053] As can be seen from the above, when in operation, the control cylinder 25 performs telescopic movement, which drives the I-shaped transmission frame 241 connected to the fixed block 243 to slide along the guide frame 213, thereby driving the rack 242 fixed to the outside of the I-shaped transmission frame 241 to move accordingly, driving the gear 235 meshing with it to rotate;

[0054] When the gear 235 rotates, it drives the side baffle body 231 to rotate around the axis of the rotating rod 234. Its rotation angle is constrained by the limit plate 212 fixed on the outside of the middle baffle body 211. The precise adjustment of the protection angle is achieved through the rotation of the side baffle body 231; the limit plate 212 ensures the safety and reliability of the rotation position of the side baffle body 231.

[0055] At the same time, the water supply system is turned on so that the water spray head 232 integrated at the outer end of the side baffle body 231 continues to provide a water spray function;

[0056] In addition, the fixed clamp 22 consisting of the fixed hoop 221 , the movable hoop 222 and the bolt 223 facilitates the installation and fixation of the equipment on the excavation mechanism 1 .

[0057] like Figure 7 As shown:

[0058] Embodiment 3: This embodiment is basically the same as the previous embodiment, except that the tunneling mechanism 1 includes a tunneling body 11, a rotary assembly 12 is installed on the tunneling body 11, a main hydraulic cylinder 13 is movably installed on the rotary assembly 12 through an oil cylinder, and a tunneling head 14 is installed on the movable end of the main hydraulic cylinder 13.

[0059] Specifically, a bucket-type collecting device 15 is installed at the front lower end of the tunneling body 11 , and a conveyor belt 16 is installed at the bottom of the tunneling body 11 .

[0060] As can be seen from the above, during operation, the rotary assembly 12 mounted on the tunneling machine body 11 can achieve horizontal rotational motion to provide direction adjustment for tunneling;

[0061] The main hydraulic cylinder 13 is mounted on the rotary assembly 12 through the oil cylinder movement, and its telescopic movement can change its own pitch angle;

[0062] At the same time, the tunneling head 14 installed at the movable end of the main hydraulic cylinder 13 performs impact or rotation operation under the drive of the main hydraulic cylinder 13 to break the coal and rock;

[0063] In addition, the bucket-type collecting device 15 located at the lower end of the front side of the tunneling machine body 11 can collect coal blocks and collect the crushed materials onto the conveyor belt 16 installed at the bottom of the tunneling machine body 11, and the conveyor belt 16 continuously transports the materials backward.

[0064] The embodiments of the present invention are provided for the purpose of illustration and description. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present invention. Any changes, modifications, replacements and variations of the above embodiments by ordinary technicians in this field within the scope of the present invention should be included in the scope of protection of the present invention.

Claims

1. An angle-adjustable coal mining tunneling equipment, characterized in that: It includes a tunneling mechanism (1) and a protection mechanism (2): The protection mechanism (2) includes a middle baffle (21), a fixing clamp (22) is provided on the upper side of the middle baffle (21), a group of side baffles (23) are rotatably mounted on the outer side of the middle baffle (21), a transmission member (24) is provided at the bottom of the middle baffle (21) for limited sliding, and an oil cylinder (25) is further provided on one side of the transmission member (24); One end of the oil cylinder (25) is fixed on the middle baffle (21), and the other end of the oil cylinder (25) is fixed on the transmission member (24). The transmission member (24) is limitedly slidably embedded in the bottom of the middle baffle (21), and the transmission member (24) drives the side baffle (23) to rotate. The side baffle member (23) comprises a side baffle body (231), and the outer end of the side baffle body (231) is fixedly connected to a water spray head (232) and a water inlet (233) that are interconnected, and the water inlet (233) is connected to a water supply system.

2. The angle-adjustable coal mining excavation equipment according to claim 1, characterized in that: The middle baffle member (21) comprises a middle baffle body (211), and a limiting plate (212) is fixed on the outer side of the middle baffle body (211); The side baffle member (23) comprises a side baffle body (231), and a rotating rod (234) is fixed to one end of the side baffle body (231) away from the water spray head (232); The rotating rod (234) is locked in the middle baffle body (211) for limited rotation, and the limiting plate (212) limits the side baffle body (231).

3. The angle-adjustable coal mining excavation equipment according to claim 2, characterized in that: A guide frame (213) is fixed to the lower end of the middle baffle body (211); A gear (235) is also fixed to one end of the rotating rod (234); The transmission member (24) includes an I-shaped transmission frame (241), a rack (242) is fixed to the outside of the I-shaped transmission frame (241), and a fixing block (243) is also fixed to the bottom of the I-shaped transmission frame (241); The gear (235) and the rack (242) are meshed with each other, and the I-shaped transmission frame (241) is limitedly slidable on the guide frame (213); One end of the oil cylinder (25) is fixed on a fixed block (243), and the other end of the oil cylinder (25) is fixed on a guide frame (213).

4. The angle-adjustable coal mining excavation equipment according to claim 1, characterized in that: The fixed clamp (22) comprises a fixed hoop (221) and a movable hoop (222), and a bolt (223) is passed through and fixed between the fixed hoop (221) and the movable hoop (222).

5. The angle-adjustable coal mining excavation equipment according to claim 1, characterized in that: The tunneling mechanism (1) comprises a tunneling machine body (11), a rotary assembly (12) is mounted on the tunneling machine body (11), a main hydraulic cylinder (13) is movably mounted on the rotary assembly (12) via an oil cylinder, and a tunneling head (14) is mounted on the movable end of the main hydraulic cylinder (13).

6. The angle-adjustable coal mining excavation equipment according to claim 5, characterized in that: A bucket-type collecting device (15) is also installed at the front lower end of the tunneling machine body (11), and a conveyor belt (16) is installed at the bottom of the tunneling machine body (11).

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