An external spraying device for a coal mining machine

Abstract

The utility model discloses an external spraying device for coal mining machine relates to underground coal mining machine external spraying technical field, the utility model discloses a fixed base and spray cylinder, and the fixed base end is connected with the coal mining machine clamping through the connecting piece, and the fixed base top is movably connected with the spray cylinder through the angle adjusting subassembly, and the spray cylinder tail is connected with the water supply pipe, and the fixed base bottom four corners are installed with the supporting leg, and the supporting leg is installed with the auxiliary movement subassembly. The device can flexibly adjust the spray angle, is convenient for moving, can effectively satisfy the coal mining machine spray dust demand.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of the external spray of underground coal mining machine, especially relates to an external spray device for coal mining machine. BACKGROUND

[0002] The coal mining machine is the core equipment in the coal mine production, and is mainly used for cutting and collecting the coal seam. A large amount of coal dust is generated in the running process, which not only has adverse effects on the working environment and equipment operation, but also seriously threatens the health of miners, and even may cause dust explosion and other safety accidents. Therefore, reducing the coal dust concentration is an important link in the coal mining operation. The external spray device, as an important additional equipment of the coal mining machine, can inhibit the generation and diffusion of dust by spraying water mist, improve the working environment, protect the health and safety of the operators, and help improve the overall production efficiency of the coal mine.

[0003] At present, the external spray device of the coal mining machine is mostly fixed or semi-fixed, which sprays water mist to the working area through the nozzle to inhibit the coal dust. However, these devices are usually large in size, and the connection with the structure of the coal mining machine is relatively complex, which limits the mobility of the equipment. When the coal mining machine needs to be moved or the position of the spray device needs to be adjusted, the large size and fixed structure of the equipment often cause inconvenience in operation and adjustment, affecting the operation efficiency and flexibility of the equipment. SUMMARY

[0004] In view of the above technical problems, the utility model provides an external spray device for coal mining machine, which solves the problems of inconvenient movement and complex connection with the coal mining machine of the existing external spray device.

[0005] In order to achieve the above purpose, the technical scheme of the utility model is as follows:

[0006] An external spray device for coal mining machine, comprising a fixed base and a spray barrel, the end of the fixed base is connected with the coal mining machine through a connecting piece, the top of the fixed base is movably connected with the spray barrel through an angle adjusting assembly, the tail of the spray barrel is connected with a water supply pipe, the four corners of the bottom of the fixed base are provided with supporting legs, and the supporting legs are provided with auxiliary moving assemblies.

[0007] The angle adjusting assembly is composed of two shafts and two supporting frames, the two supporting frames are respectively installed on the front and rear sides of the fixed base, and the shafts are rotatably connected with the supporting frames.

[0008] The auxiliary moving assembly is composed of a first cross plate, a second cross plate and a hinge, the first cross plate and the second cross plate are respectively installed on the inner sides of the two legs in the length direction of the fixed base through the hinge, two first cross plates are connected through a first connecting rod, two second cross plates are connected through a second connecting rod, when the first cross plate and the second cross plate keep a vertical state, the free end of the second cross plate is crimped on the free end of the first cross plate, a rotating plate is rotatably installed on the side of the second cross plate, the connecting end of the rotating plate is connected with the side of the second cross plate through a spring, a guide column is arranged at the position corresponding to the rotating plate on the side of the first cross plate, the hook end of the rotating plate is clamped in the guide column, and universal wheels are installed on the bottoms of the first cross plate and the second cross plate.

[0009] A sliding groove is formed in the top of the fixed base, a screw rod is rotatably installed in the sliding groove, a driving sliding block is cooperatively installed on the screw rod, a connecting rod is hingedly connected to the driving sliding block, and the other end of the connecting rod is hingedly connected to the head of the spray cylinder.

[0010] Compared with the prior art, the utility model has the advantages that:

[0011] 1. Convenient and stable installation: the end of the fixed base is clamped with the coal mining machine through the connecting piece, the installation process is simple and efficient, the external spray device can be quickly combined with the coal mining machine, meanwhile, the device will not fall off due to vibration when the coal mining machine is running, the stability of the spray device is ensured, and a foundation for continuous and effective spray dust reduction is laid;

[0012] 2. Easy to move and space optimization: the auxiliary moving assembly adopts the design of the first cross plate, the second cross plate and the hinge, and the cross plate can be unfolded or folded through the hinge. When unfolded, the first cross plate and the second cross plate are connected through the connecting rod and kept vertical, and the universal wheels at the bottom are grounded, so that the device can be conveniently moved to a suitable position in the coal mining site. When folded, the cross plate is attached to the inner side of the leg, the transverse space occupation of the device is reduced, interference with other equipment or parts in the coal mining process is avoided, and the adaptability of the device in the complex underground environment is improved;

[0013] 3. Multi-angle flexible adjustment: the angle adjusting assembly is composed of two rotating shafts and a support frame, so that the spray cylinder can be flexibly rotated around the rotating shaft. Meanwhile, the mechanism composed of the sliding groove, the screw rod, the driving sliding block and the connecting rod at the top of the fixed base is driven to rotate by the motor, the driving sliding block is moved in the sliding groove, and then the angle of the head of the spray cylinder is accurately controlled. This makes the spray cylinder accurately adjust the spray angle according to different working postures of the coal mining machine, the height of the coal seam and the direction of dust generation, effectively covers the dust generation area, and greatly improves the spray dust reduction efficiency; BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structural schematic view of the utility model.

[0015] Figure 2 The front view of the utility model;

[0016] Figure 3 The Figure 2 The local enlarged view of A in the middle;

[0017] Figure 4 The assembly schematic view of the utility model.

[0018] In the figure:

[0019] 1, fixed base; 2, spray barrel; 3, supporting leg; 4, first cross plate; 5, second cross plate; 6, hinge; 7, first connecting rod; 8, second connecting rod; 9, rotating plate; 10, spring; 11, guide column; 13, universal wheel; 14, supporting frame; 15, rotating shaft; 16, screw rod; 17, driving sliding block; 18, motor; 20, connecting rod; 22, connecting piece; 23, water supply pipe; 24, sliding groove. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the utility model more clear and obvious, the utility model is further described in detail below in combination with specific implementation manners and with reference to the drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0021] A kind of external spray device for coal mining machine, including fixed base 1 and spray barrel 2, fixed base 1 end is connected with coal mining machine by connecting piece 22, fixed base 1 top is movably connected with spray barrel 2 by angle adjusting assembly, spray barrel 2 tail is connected with water supply pipe 23, fixed base 1 bottom four corners are installed with supporting leg 3, supporting leg 3 is installed with auxiliary moving assembly.

[0022] The angle adjusting assembly is composed of two rotating shafts 15 and two supporting frames 14, two supporting frames 14 are respectively installed on the front and back of fixed base 1, rotating shaft 15 is installed on the front and back of spray barrel 2 and is rotatably connected with supporting frame 14.

[0023] The auxiliary moving assembly is composed of the first cross plate 4, the second cross plate 5 and the hinge 6, the first cross plate 4 and the second cross plate 5 are respectively installed on the inner side of the two legs 3 in the length direction of the fixed base 1 through the hinge 6, the two first cross plates 4 are connected through the first connecting rod 7, the two second cross plates 5 are connected through the second connecting rod 8, when the first cross plate 4 and the second cross plate 5 keep the vertical state, the free end of the second cross plate 5 is pressed on the free end of the first cross plate, the side of the second cross plate 5 is rotatably installed with the rotating plate 9, the connecting end of the rotating plate 9 is connected with the side of the second cross plate 5 through the spring 10, the side of the first cross plate 4 is provided with the guide column 11 corresponding to the position of the rotating plate 9, the hook end of the rotating plate 9 is clamped in the guide column 11, and the bottom of the first cross plate 4 and the second cross plate 5 is installed with the universal wheel 13.

[0024] The top of the fixed base 1 is provided with the sliding groove 24, the screw rod 16 is rotatably installed in the sliding groove 24, the driving sliding block 17 is matched and installed on the screw rod 16, the driving sliding block 17 is hinged with the connecting rod 20, the other end of the connecting rod 20 is hinged with the head of the spray cylinder 2, one end of the fixed base 1 which is not provided with the connecting piece 22 is installed with the motor 18, and the main shaft of the motor 18 penetrates through the end of the fixed base 1 and is connected with the screw rod 16.

[0025] In use:

[0026] Firstly, the end of the fixed base 1 of the external spraying device of the coal mining machine is clamped with the coal mining machine through the connecting piece 22. The connecting mode enables the device to be firmly attached to the coal mining machine, ensures that the device will not be displaced or dropped due to vibration and other factors during the working process of the coal mining machine, and is simple to connect, saving time and effort. When it is necessary to move the device to the coal mining position, the operator can operate the auxiliary moving assembly. Since the first cross plate 4 and the second cross plate 5 are installed on the inner side of the leg 3 through the hinge 6, when the first cross plate 4 and the second cross plate 5 are in the vertical state, the free end of the second cross plate 5 is pressed on the free end of the first cross plate 4. At the same time, the hook end of the rotating plate 9 on the side of the second cross plate 5 will be clamped in the guide column 11 on the side of the first cross plate 4 under the pulling force of the spring 10, so that the first cross plate 4 and the second cross plate 5 are relatively fixed. At this time, the universal wheels 13 at the bottom of the first cross plate 4 and the second cross plate 5 can play a role, so that the whole device is convenient to move.

[0027] When the device is moved to the appropriate position, the operator can overcome the pulling force of the spring 10 and pull the rotating plate 9 out of the guide column 11, so that the first cross plate 4 and the second cross plate 5 are folded by rotating around the hinge 6, reducing the transverse occupation space of the device and avoiding interference with other equipment or parts of the coal mining machine during the coal mining process.

[0028] When the coal mining operation starts, the motor 18 is started to adjust the angle of the spray barrel 2 to adapt to different spraying requirements. The main shaft of the motor 18 rotates to drive the screw rod 16 to rotate in the sliding groove 24 at the top of the fixed base 1. Since the driving sliding block 17 is matched and installed on the screw rod 16, the rotation of the screw rod 16 will be converted into the linear motion of the driving sliding block 17 in the sliding groove 24. The movement of the driving sliding block 17 will drive the connecting rod 20 articulated therewith to move. The other end of the connecting rod 20 is articulated with the head of the spray barrel 2, so the movement of the connecting rod 20 will drive the spray barrel 2 to rotate around the rotating shaft 15. According to different working heights of the coal mining machine, specific positions of the coal seam and the direction of dust generation, the spray barrel 2 can be adjusted to the optimal angle, so as to improve the pertinence and effectiveness of the spraying.

[0029] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An external spraying device for a coal mining machine, characterized in that: Including fixed base (1) and spray barrel (2), fixed base (1) end is connected with coal winning machine by connecting piece (22), fixed base (1) top is movably connected with spray barrel (2) through angle adjusting assembly, spray barrel (2) tail is connected with water supply pipe (23), fixed base (1) bottom four corners are installed with supporting leg (3), supporting leg (3) is installed with auxiliary moving assembly.

2. An external spraying device for a coal mining machine according to claim 1, characterized in that: The angle adjusting assembly is composed of two rotating shafts (15) and two support frames (14), two support frames (14) are respectively installed on the front and rear sides of the fixed base (1), and the rotating shafts (15) are rotatably connected with the support frames (14) and are installed on the front and rear sides of the spray barrel (2).

3. An external spraying device for a coal mining machine according to claim 2, characterized in that: The auxiliary moving assembly is composed of a first cross plate (4), a second cross plate (5) and a hinge (6), the first cross plate (4) and the second cross plate (5) are respectively installed on the inner sides of the two supporting legs (3) in the length direction of the fixed base (1) through the hinge (6), the two first cross plates (4) are connected through a first connecting rod (7), the two second cross plates (5) are connected through a second connecting rod (8), when the first cross plate (4) and the second cross plate (5) are kept in a vertical state, the free end of the second cross plate (5) is press-connected on the free end of the first cross plate, a rotating plate (9) is rotatably installed on the side of the second cross plate (5), the connecting end of the rotating plate (9) is connected with the side of the second cross plate (5) through a spring (10), a guide column (11) is arranged on the side of the first cross plate (4) corresponding to the position of the rotating plate (9), the hook end of the rotating plate (9) is clamped in the guide column (11), and universal wheels (13) are installed on the bottoms of the first cross plate (4) and the second cross plate (5).

4. An external spraying device for a coal mining machine according to claim 3, characterized in that: The top of the fixed base (1) is provided with a sliding groove (24), a screw rod (16) is rotatably installed in the sliding groove (24), a driving sliding block (17) is installed on the screw rod (16), the driving sliding block (17) is hingedly connected with a connecting rod (20), the other end of the connecting rod (20) is hingedly connected with the head of the spray barrel (2), one end of the fixed base (1) not provided with the connecting piece (22) is installed with a motor (18), and the main shaft of the motor (18) is connected with the screw rod (16) after penetrating through the end of the fixed base (1).

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