CN102140915A - Roadheader Wet Type Internal Spray Device - Google Patents

Abstract

The invention discloses a wet type inner spraying device of a heading machine, wherein a water inlet sleeve (4) is sleeved on a cutting head shaft (1) and is communicated with a water channel on the cutting head shaft (1) and is fixedly arranged on an outer cylinder body (2), a water inlet pipe (6) communicated with the water inlet sleeve (4) is arranged on the outer cylinder body (2), a sealing sleeve (3) is fixedly arranged on the cutting head shaft (1) and is sealed with the water inlet sleeve (4), and a bearing (9) and a bearing end cover (11) are arranged between the cutting head shaft (1) and the water inlet sleeve (4). The invention is a wet type inner spraying device of a development machine, which has simple water supply pipeline, good sealing effect at the movable connection part, high durability of a sealing element and good spraying effect.

Description

Roadheader Wet Type Internal Spray Device

technical field

The invention relates to a spraying device, in particular to a wet-type internal spraying device for a roadheader.

Background technique

As the roadheader breaks coal and rocks continuously, the working flour and dust are flying, which not only affects the health of workers, but also affects production safety. Ventilation alone cannot reduce the dust content in the air to within the standard range, so necessary dust removal measures must be taken.

Generally, the spray dust removal method used by the roadheader is to use nozzles to diffuse the water with a certain pressure to make it atomized, so that the dust is attached to the surface of the mist water particles and settles down to achieve the dust removal effect. This dust removal method is divided into external spray and internal spray.

The outer spray has simple structure, reliable operation and long service life. Because the nozzle is far away from the dust source, the dust is easy to spread and the dust suppression effect is poor.

The internal spray is to install a nozzle on the cutting head and spray it against the dust source. The characteristics of the internal spray are that the nozzle is close to the pick, the effect of dust removal is good, the water consumption is small, the effect of diluting the gas, cooling the pick and extinguishing the spark is better. The nozzles are easy to block and damage, the water supply pipeline is complicated, and it is difficult to seal the movable joints.

Contents of the invention

The technical problem to be solved by the present invention is to provide a wet-type internal spraying device for roadheaders with simple water supply pipeline, good sealing effect at movable joints, high durability of sealing parts and good spraying effect.

In order to solve the above technical problems, the present invention provides a roadheader wet-type internal spraying device, the water inlet sleeve is set on the cutting head shaft, communicates with the water channel on the cutting head shaft and is fixedly installed on the outer cylinder. The outer cylinder is provided with a water inlet pipe communicating with the water inlet sleeve, and the sealing sleeve is fixedly installed on the cutting head shaft and sealed with the water inlet sleeve, and the cutting head shaft is connected to the inlet A bearing and a bearing end cover are arranged between the water jackets, and a left oil chamber is formed between the side of the water inlet jacket close to the outer end of the cutting head shaft and the outer cylinder, and the inlet A right oil chamber is formed between the water jacket and the bearing, and a first through hole for connecting the left oil chamber and the right oil chamber is drilled at the lower part of the water inlet jacket.

A second through hole is drilled on the upper part of the water inlet sleeve and the bearing cover, the second through hole makes the left oil chamber and the right oil chamber communicate with the right chamber of the cantilever section, and the outer cylinder A leaking plug is provided below the right cavity of the cantilever section.

The space between the water inlet sleeve and the sealing sleeve is sealed by a grid ring and an O-ring.

Adopt the roadheader wet type internal spraying device of above-mentioned technical scheme, water is introduced by water inlet pipe, enters in the sealing chamber that cutting head body and cutting head shaft form through water inlet sleeve, sealing sleeve. The pressure water passes through the cavity and sprays atomized water from the nozzle on the cutting head to eliminate dust. In order to make the sealing effect of the movable joint better, the inner spray device is provided with two connected left oil chambers and right oil chambers, the purpose is to lubricate the grid ring and the bearing at the same time, the lubricating oil filling position is higher than the grid ring; The second through hole is drilled in the upper part of the sleeve, which communicates with the through hole drilled in the bearing cover. If the seal is damaged, the leaked water can flow into the right cavity of the cantilever section, and the inner spray can be obtained through the leak plug set at the lower end of the outer cylinder. The device leaks water, and the leaked water is discharged simultaneously.

To sum up, the present invention is a wet-type internal spraying device for roadheaders with simple water supply pipeline, good sealing effect at movable joints, high durability of sealing parts, and good spraying effect.

Description of drawings

Fig. 1 is the schematic front view of the structure of the wet-type internal spraying device of the roadheader;

Fig. 2 is a schematic top view of the structure of the wet-type internal spraying device of the roadheader.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

Referring to Fig. 1 and Fig. 2, the water inlet sleeve 4 is set on the cutting head shaft 1 and communicates with the water channel on the cutting head shaft 1, and is fixedly installed on the inner wall of the outer cylinder 2 through the limit device 14, and the outer cylinder 2 is provided with There is a water inlet pipe 6 communicating with the water inlet sleeve 4. The sealing sleeve 3 is fixedly installed on the cutting head shaft 1 through a limit screw 13 and is sealed with the water inlet jacket 4 by a grid ring 7 and an O-ring 5. The cutting head A bearing 9 and an oil seal 8 are provided between the shaft 1 and the water inlet sleeve 4, and the bearing end cover 11 is connected with the water inlet sleeve 4 through a connecting bolt 10, and the side of the water inlet sleeve 4 close to the outer end of the cutting head shaft 1 is connected to the outer cylinder A left oil chamber 19 is formed between the bodies 2, a right oil chamber 16 is formed between the water inlet jacket 4 and the bearing 9, and a first passage for connecting the left oil chamber 19 and the right oil chamber 16 is drilled at the lower part of the water inlet jacket 4. The hole 18 is drilled with a second through hole 15 on the upper part of the water inlet sleeve 4 and the bearing cover 11. The second through hole 15 makes the left oil chamber 19 and the right oil chamber 16 communicate with the right chamber 17 of the cantilever section, and the right chamber of the cantilever section 17 By providing a water leakage plug 12 under the outer cylinder 2, the leaked water can be removed. As shown in Figures 1 and 2, the water is introduced from the joint and the water inlet pipe 6, and enters the sealed cavity formed by the cutting head body and the cutting head shaft 1 through the water inlet sleeve 4 and the sealing sleeve 3. The pressure water passes through the cavity and sprays atomized water from the nozzle on the cutting head to eliminate dust.

Drill the first through hole 18 at the bottom of the water inlet jacket 4, make the left oil chamber 19 communicate with the right oil chamber 16, complete the lubrication of the grid ring 7 and the bearing 9, the lubricating oil position is injected to the grid ring 7 top and get final product. The second through hole 15 is drilled on the water inlet sleeve 4 and the bearing cover 11 top, so that the left oil chamber 19, the right oil chamber 16 communicate with the right chamber 17 of the cantilever section. When the seal is damaged and water leaks, it can flow into the right chamber 17 of the cantilever section through the second through hole 15 and be discharged through the water leakage plug 12 below the outer cylinder body 2 .

The space between the water inlet sleeve 4 and the sealing sleeve 3 is sealed with a lattice ring 7, which is a movable seal. The water inlet sleeve 4 is connected with the outer cylinder body 2, and the circumferential rotation is limited by the limit device 14, and is supported by a bearing 9, so that Its coaxiality is good, which improves the durability of the grid ring 7; the sealing sleeve 3 is connected with the cutting head shaft 1 through the limit screw 13, and rotates with the cutting head in the circumferential direction.

The above is only a preferred embodiment of the present invention, it should be pointed out that for those skilled in the art, without departing from the principle of the present invention, some improvements and modifications can also be made, and these improvements and modifications are also It should be regarded as the protection scope of the present invention.

Claims (5)

1. A roadheader wet-type internal spraying device, characterized in that: the water inlet sleeve (4) is set on the cutting head shaft (1) and communicates with the water channel on the cutting head shaft (1) and is fixedly installed outside On the cylinder body (2), the outer cylinder body (2) is provided with a water inlet pipe (6) communicated with the water inlet sleeve (4), and the sealing sleeve (3) is fixedly installed on the cutting head shaft ( 1) on and sealed with the water inlet sleeve (4), a bearing (9) and a bearing end cover (11) are arranged between the cutting head shaft (1) and the water inlet sleeve (4) ). 2. The wet-type internal spraying device of the roadheader according to claim 1, characterized in that: the sealing sleeve (3) is fixedly installed on the cutting head shaft (1) through a limit screw (13). 3. The wet-type internal spraying device of roadheader according to claim 1, characterized in that: a grid ring (7) and an O-ring (5) are used between the water inlet sleeve (4) and the sealing sleeve (3) seal. 4. The roadheader wet internal spraying device according to claim 1, characterized in that: the side of the water inlet sleeve (4) close to the cutting head shaft (1) and the outer cylinder A left oil chamber (19) is formed between (2), a right oil chamber (16) is formed between the water inlet jacket (4) and the bearing (9), and the water inlet jacket ( 4) The first through hole (18) communicating with the left oil chamber (19) and the right oil chamber (16) is drilled on the top. 5. The wet-type internal spray device of roadheader according to claim 1, characterized in that: a second through hole (15) is drilled on the top of the water inlet sleeve (4) and the bearing cap (11), and the The second through hole (15) communicates the left oil chamber (19) and the right oil chamber (16) with the right chamber (17) of the cantilever section, and the outer cylinder communicated with the right chamber (7) of the cantilever section A water leakage plug (12) is provided below the body (2).

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