Dustproof spraying device for coal mine tunneling

Abstract

The dustproof spraying device comprises an atomizing nozzle, an annular water tank, a mounting base, a limiting assembly and a connecting piece, the atomizing nozzle is arranged on the outer wall of the annular water tank, the mounting base is arranged on the outer wall of the annular water tank, the limiting assembly is arranged outside the atomizing nozzle in a sleeving mode, and the connecting piece is arranged on the outer wall of the annular water tank. And the connecting piece is arranged on the side of the mounting base. By utilizing the design of the atomizing nozzle, the mounting base, the limiting assembly and the connecting piece, the limiting cover is arranged outside the second fixing plate in a sleeving manner, and the locking block is inserted into the locking hole of the mounting block, so that the inner wall of the limiting groove of the limiting cover and the top end of the first fixing bolt are mutually attached and extruded to limit the vertical movement of the first fixing bolt; and when the driving arm vibrates, the first fixing bolt can be prevented from moving out of the second fixing plate, and stable connection between the atomizing nozzle and the mounting base is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to dustproof device technical field, especially in coal mine tunneling is with dustproof spray device. BACKGROUND

[0002] The coal mining usually uses the tunneling machine to dig, and a large amount of dust is generated in the process of digging, which affects the health of the staff, so a plurality of atomizing nozzles are fixedly installed at the driving arm part of the tunneling machine drill bit to realize the dust reduction effect.

[0003] But the drill bit works, will produce a substantial vibration, thus driving arm will vibrate continuously, in this way will be conducted to the atomizing nozzle, under the action of high frequency, long time vibration, the bolt of fixedly installed atomizing nozzle will gradually appear displacement, thus the installation of atomizing nozzle is not firm, even appear the phenomenon of falling, thus influence tunneling dust reduction effect. UTILITY MODEL CONTENT

[0004] The utility model discloses a dustproof spray device for coal mine tunneling to solve the problem in the background art.

[0005] To achieve the above object, the utility model provides the following technical scheme: a dustproof spray device for coal mine tunneling, comprising:

[0006] Atomizing nozzle;

[0007] Annular water tank, the atomizing nozzle is arranged at the outer wall of annular water tank, and the annular water tank is used to provide water source for the atomizing nozzle;

[0008] Mounting base, the mounting base is arranged at the outer wall of annular water tank, and the mounting base is used for the fixed installation of atomizing nozzle;

[0009] Limiting assembly, the limiting assembly is sleeved at the outside of atomizing nozzle, and the limiting assembly is used to cover the connecting part of atomizing nozzle and mounting base;

[0010] Connecting piece, the connecting piece is arranged at the side of mounting base, and the connecting piece is used for the fixed connection of mounting base and limiting assembly.

[0011] Preferably, the back of the atomizing nozzle is connected with a water distribution pipe for communication with the annular water tank, the two sides of the atomizing nozzle are respectively fixedly connected with second fixed plates, the top end of the second fixed plate is provided with a first circular hole, a first fixed bolt for fixed connection of the second fixed plate and the mounting base is arranged in the first circular hole, and the end, away from the atomizing nozzle, of the mounting base is fixedly connected with the outer wall of the annular water tank.

[0012] Preferably, the limiting assembly comprises:

[0013] A limiting cover is sleeved on the outer wall of the atomizing nozzle, and a limiting slot for covering the first fixing bolt is formed on one side of the bottom end of the limiting cover;

[0014] A sealing strip is fixedly connected to one side of the limiting cover facing the annular water tank.

[0015] Preferably, the vertical section of the limiting cover is in the shape of a Chinese character.

[0016] Preferably, the connecting piece comprises:

[0017] A plug block is fixedly connected to one side of the mounting base;

[0018] A mounting block is fixedly connected to one side of the limiting cover, a penetrating slot for the plug block is formed on the bottom end of the mounting block, and a locking hole is formed on one side of the penetrating slot;

[0019] A locking block is penetratingly connected to the locking hole.

[0020] Preferably, a cavity is formed in the interior of the plug block, a plug hole is formed on the inner wall of the cavity, the locking block is penetratingly connected to the plug hole, a baffle is fixedly connected to one end of the locking block, and an elastic block is arranged on one side of the baffle.

[0021] Preferably, a first fixing plate is fixedly connected to the inner wall of the annular water tank, a driving arm is arranged on the back surface of the annular water tank, a second circular hole is formed on the front surface of the first fixing plate, a second fixing bolt for fixedly connecting the first fixing plate and the driving arm is penetratingly connected to the interior of the second circular hole, a drill bit and a tunneling machine body are arranged on the front surface and the back surface of the driving arm respectively, a main water pipe is throughly connected to the outer wall of the annular water tank, and a water supply device is throughly connected to one end of the main water pipe.

[0022] The technical effects and advantages of the present application are as follows:

[0023] The present application utilizes the design of the atomizing nozzle, the mounting base, the limiting assembly and the connecting piece, the limiting cover is sleeved on the outside of the second fixing plate, the locking block is inserted into the locking hole of the mounting block, the inner wall of the limiting slot of the limiting cover and the top end of the first fixing bolt are mutually adhered and extruded, the vertical movement of the first fixing bolt is limited, the first fixing bolt can be prevented from moving out of the second fixing plate when the driving arm is in vibration, and the connection stability between the atomizing nozzle and the mounting base is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 The present application is a whole three-dimensional structure schematic view.

[0025] Figure 2A three-dimensional structure schematic view of the atomizing nozzle and the annular water tank.

[0026] Figure 3 A three-dimensional structure schematic view of the atomizing nozzle and the mounting base.

[0027] Figure 4 A three-dimensional structure schematic view of the limiting assembly.

[0028] Figure 5 A sectional structure schematic view of the connecting piece.

[0029] In the figure: 1, atomizing nozzle; 2, annular water tank; 3, main water pipe; 4, water supply device; 5, first fixed plate; 6, water distribution pipe; 7, mounting base; 8, limiting assembly; 81, limiting cover; 82, sealing strip; 9, connecting piece; 91, plug block; 92, mounting block; 93, locking block; 94, baffle; 95, elastic block; 10, second fixed plate; 11, driving arm; 12, drill bit; 13, tunneling machine body; 14, first fixed bolt; 15, second fixed bolt. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0031] In an embodiment, the present application provides a dustproof spraying device for coal mine tunneling, as shown in the accompanying drawings. Figures 1-5

[0032] The atomizing nozzle 1;

[0033] The annular water tank 2, the atomizing nozzle 1 is arranged on the outer wall of the annular water tank 2, and the annular water tank 2 is used for providing water source for the atomizing nozzle 1;

[0034] The mounting base 7, the mounting base 7 is arranged on the outer wall of the annular water tank 2, and the mounting base 7 is used for fixedly mounting the atomizing nozzle 1;

[0035] The limiting assembly 8, the limiting assembly 8 is sleeved outside the atomizing nozzle 1, and the limiting assembly 8 is used for covering the connecting part of the atomizing nozzle 1 and the mounting base 7;

[0036] The connecting piece 9, the connecting piece 9 is arranged on the side of the mounting base 7, and the connecting piece 9 is used for fixedly connecting the mounting base 7 and the limiting assembly 8.

[0037] ​The inner wall of the annular water tank 2 is fixedly connected with a first fixing plate 5. A driving arm 11 is arranged on the back of the annular water tank 2. A second round hole is opened on the front of the first fixing plate 5. A second fixing bolt 15 for fixedly connecting the first fixing plate 5 and the driving arm 11 is inserted and connected inside the second round hole. A drill bit 12 and a roadheader body 13 are respectively arranged on the front and back of the driving arm 11. A main water pipe 3 penetrates and connects with the outer wall of the annular water tank 2. One end of the main water pipe 3 penetrates and connects with a water supply device 4.

[0038] Furthermore, the driving arm 11, the drill bit 12 and the roadheader body 13 form a roadheader of the existing model EBZ260H. The driving arm 11 is a device for controlling the rotation and swing of the drill bit 12. The roadheader body 13 moves the entire roadheader and controls the driving arm 11 and the drill bit 12. The drill bit 12 is used for coal mining. Two first fixing plates 5 are symmetrically arranged. The part of the first fixing plate 5 in contact with the inner wall of the annular water tank 2 is fixed by welding. The inside of the first fixing plate 5 is fixedly connected with the driving arm 11 through the second fixing bolt 15, or the first fixing plate 5 and the driving arm 11 can be fixedly connected by welding. The water supply device 4 is jointly composed of a water tank and a high-pressure water pump. Water is pumped into the main water pipe 3 through the water pump, transported to the inside of the annular water tank 2 by the main water pipe 3, and then transported from the annular water tank 2 to the atomizing nozzle 1 through the water distribution pipe 6 for water mist spraying to achieve the dust reduction effect. The position of the water supply device 4 can be set on the roadheader body 13, which is convenient for installing the bottom or top end of the water supply device 4.

[0039] A water distribution pipe 6 for communicating with the annular water tank 2 penetrates and connects with the back of the atomizing nozzle 1. Second fixing plates 10 are respectively fixedly connected to both sides of the atomizing nozzle 1. A first round hole is opened at the top of the second fixing plate 10. A first fixing bolt 14 for fixedly connecting the second fixing plate 10 and the mounting base 7 is inserted and arranged inside the first round hole. One end of the mounting base 7 away from the atomizing nozzle 1 is fixedly connected with the outer wall of the annular water tank 2.

[0040] The limiting component 8 includes:

[0041] A limiting cover 81, which is sleeved on the outer wall of the atomizing nozzle 1. A limiting groove for covering the first fixing bolt 14 is opened on one side of the bottom end of the limiting cover 81;

[0042] A sealing strip 82, which is fixedly connected to the side of the limiting cover 81 facing the annular water tank 2.

[0043] The vertical section of the limiting cover 81 is in a shape of "J".

[0044] Further, the outer wall of the annular water tank 2 is annularly and equidistantly provided with a plurality of atomizing nozzles 1, the number of the limiting assembly 8 and the mounting base 7 corresponds to the number of the atomizing nozzles 1, one connecting piece 9 is arranged on each side of the mounting base 7, the part of the atomizing nozzle 1 in contact with the second fixed plate 10 is welded and fixed, the top end of the mounting base 7 is provided with a threaded hole for mounting a first fixed bolt 14, the part of the mounting base 7 in contact with the annular water tank 2 is welded and fixed, the height of the limiting groove is the sum of the thickness of the second fixed plate 10 and the screw head of the first fixed bolt 14, so that when the limiting cover 81 is installed at the top end of the atomizing nozzle 1, the limiting groove covers the second fixed plate 10 and the first fixed bolt 14, the top end of the inner wall of the limiting groove is in contact with the top end of the first fixed bolt 14, so as to limit the vertical movement of the first fixed bolt 14, so that the first fixed bolt 14 cannot move out of the first circular hole in the high-frequency and long-time vibration environment, so as to ensure the stability of the connection between the second fixed plate 10 and the mounting base 7, and the sealing strip 82 is made of rubber strip, after the limiting cover 81 is installed, the outer wall of the atomizing nozzle 1 and the mounting base 7 will extrude the sealing strip 82, so as to prevent dust from entering the limiting groove from the gap and reduce the influence of dust on the threads of the first fixed bolt 14.

[0045] In the embodiment two, the connecting piece 9 is applied to the dustproof spraying device in the embodiment one, and the connecting piece 9 comprises:

[0046] The plug block 91 is fixedly connected with one side of the mounting base 7.

[0047] The mounting block 92 is fixedly connected with one side of the limiting cover 81, and the bottom end of the mounting block 92 is provided with a penetrating slot for the plug block 91 to penetrate, and one side of the penetrating slot is provided with a locking hole.

[0048] The locking block 93 is penetratingly connected with the locking hole.

[0049] The cavity is arranged in the plug block 91, the inner wall of the cavity is provided with a plug hole, the locking block 93 is penetratingly connected with the plug hole, one end of the locking block 93 is fixedly connected with a baffle 94, and one side of the baffle 94 is provided with an elastic block 95.

[0050] Further, the insertion block 91 is welded and fixed with the side of the mounting base 7, the mounting block 92 is welded and fixed with the side of the limiting cover 81, the size of the insertion slot corresponds to the size of the top of the insertion block 91, the locking block 93 is arranged on one side of the top of the insertion block 91, the elastic block 95 is an elastic rubber block, the elastic block 95 is always in a compressed state in the cavity, the size of the baffle 94 is 2 times of the size of the insertion hole, the size of the insertion hole and the locking hole is same, and the size of the insertion hole and the locking hole is 1.2 times of the size of the locking block 93, by inserting the top of the insertion block 91 into the insertion slot of the mounting block 92, under the action of the restoring force of the elastic block 95, the locking block 93 is inserted into the locking hole by pushing the baffle 94, the separation of the insertion block 91 and the mounting block 92 is limited, and the fixed mounting of the limiting cover 81 and the mounting base 7 is realized.

[0051] Finally, it should be noted that: the above only for the preferred embodiments of the utility model have described, and do not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features, any modification, equivalent replacement, improvement etc. made within the spirit and principles of the utility model, should be contained in the protection scope of the utility model.

Claims

1. A dust-preventing spraying device for coal mine tunneling, characterized by, The utility model relates to a kind of atomizing nozzle and its installation structure, including: Atomizing nozzle (1); Annular water tank (2), the atomizing nozzle (1) is arranged on the outer wall of annular water tank (2), and the annular water tank (2) is used to provide water source for atomizing nozzle (1); Mounting base (7), the mounting base (7) is arranged on the outer wall of annular water tank (2), and the mounting base (7) is used for the fixed installation of atomizing nozzle (1); Limiting component (8), the limiting component (8) is sleeved on the outside of atomizing nozzle (1), and the limiting component (8) is used to cover the connecting part of atomizing nozzle (1) and mounting base (7); Connecting piece (9), the connecting piece (9) is arranged on the side of mounting base (7), and the connecting piece (9) is used for the fixed connection of mounting base (7) and limiting component (8).

2. The dust-proof spraying device for coal mine tunneling according to claim 1, characterized in that, The back of the atomizing nozzle (1) is connected with a water distribution pipe (6) for communication with the annular water tank (2), both sides of the atomizing nozzle (1) are fixedly connected with a second fixed plate (10), a first circular hole is formed in the top end of the second fixed plate (10), a first fixed bolt (14) for fixed connection of the second fixed plate (10) and the mounting base (7) is arranged in the first circular hole, and the end of the mounting base (7) away from the atomizing nozzle (1) is fixedly connected with the outer wall of the annular water tank (2).

3. The dust-proof spraying device for coal mine tunneling according to claim 2, characterized in that, The limiting component (8) comprises: Limiting cover (81), the limiting cover (81) is sleeved on the outer wall of atomizing nozzle (1), and a limiting groove for covering the first fixed bolt (14) is formed in one side of the bottom end of the limiting cover (81); Sealing strip (82), the sealing strip (82) is fixedly connected to one side of the limiting cover (81) facing the annular water tank (2).

4. The dust-proof spraying device for coal mine tunneling according to claim 3, characterized in that, The vertical section of the limiting cover (81) is in the shape of U.

5. The dust-proof spraying device for coal mine tunneling according to claim 3, characterized in that, The connecting piece (9) comprises: Plug block (91), one side of the plug block (91) is fixedly connected with one side of the mounting base (7); Mounting block (92), one side of the mounting block (92) is fixedly connected with one side of the limiting cover (81), a through slot for the plug block (91) is formed in the bottom end of the mounting block (92), and a locking hole is formed in one side of the through slot; Locking block (93), the locking block (93) is connected with the locking hole in a penetrating manner.

6. The dust-proof spraying device for coal mine tunneling according to claim 5, characterized in that, A cavity is formed in the plug block (91), a plug hole is formed in the inner wall of the cavity, the locking block (93) is connected with the plug hole in a penetrating manner, one end of the locking block (93) is fixedly connected with a baffle (94), and one side of the baffle (94) is provided with an elastic block (95).

7. The dust-proof spraying device for coal mine tunneling according to claim 1, characterized in that, The inner wall of the annular water tank (2) is fixedly connected with a first fixed plate (5), the back of the annular water tank (2) is provided with a driving arm (11), the front of the first fixed plate (5) is provided with a second circular hole, the inside of the second circular hole is connected with a second fixed bolt (15) for fixed connection of the first fixed plate (5) and the driving arm (11), the front and back of the driving arm (11) are respectively provided with a drill bit (12) and a tunneling machine body (13), the outer wall of the annular water tank (2) is throughly connected with a main water pipe (3), one end of the main water pipe (3) is throughly connected with a water supply device (4).

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