CN204152509U - The powerful cylinder of a kind of coal-winning machine - Google Patents

Abstract

The utility model relates to a powerful drum of a coal mining machine, which comprises a drum body (8), a combined main blade (4), an end plate (6), and a small blade (9) is installed at the tail of the combined main blade (4), and the small blade ( 9) The bottom and the drum body (8) are welded and fixed; the combined main blade (4) is provided with a water inlet channel (402) inside, and a group of spray holes (401) are provided on the side of the tail, and the spray holes (401) and the water inlet channel (402 ) connected, the spraying direction is along the axis of the drum body; the combined main blade (4) is equipped with an auxiliary blade (2), and a sealing plate (3) is installed between the auxiliary blade (2) and the combined main blade (4), and the combined main blade ( 4) Ribs (5) are fixed between the drum body (8); the end plate (6) is welded on the drum body (8), and the outer side of the end plate (6) is provided with a wear plate (7 ) and end plate small picks (10). The utility model enhances the strength and wear resistance of the shearer drum and improves the service life of the drum.

Description

A coal shearer strong drum

technical field

The utility model relates to a coal shearer, in particular to a coal shearer powerful drum, which belongs to the technical field of the coal shearer drum.

Background technique

In the coal mining face, with the improvement of high-yield and high-efficiency work, the working reliability of the shearer is increasing. During the use of the spiral drum, the tail of the drum blade is often cracked, the main blade is deformed, and the coal outlet at the blade tail is severely worn. , Serious wear of the tooth seat of the end plate, etc., especially when the knife is fed obliquely, the end plate is in contact with the coal wall, resulting in wear of the end plate, wear of the tooth seat and other faults, and also sharply increases the cutting resistance and vibration. Affect the normal operation of the shearer. Therefore, it is necessary to take measures to strengthen the strength and wear resistance of the drum, improve the service life of the drum, and ensure the production efficiency of the shearer.

Utility model content

The technical problem to be solved by the utility model is: the existing coal shearer drum often has problems such as cracking at the tail of the drum blade, deformation of the main blade, serious wear of the coal outlet at the tail of the main blade, and serious wear of the end disc tooth seat during work. When the cutting tool is obliquely cut, the end plate is in contact with the coal wall, resulting in wear of the end plate, tooth seat wear and other failures. At the same time, the cutting resistance is sharply increased, and the vibration is increased, which affects the normal operation of the shearer.

The utility model takes the following technical solutions:

A powerful drum for a coal shearer, comprising a drum body 8, a combined main blade 4, and an end plate 6, a small blade 9 is installed at the tail of the combined main blade 4, and the bottom of the small blade 9 is welded and fixed to the drum body 8; the combined main blade 4 There is a water inlet channel 402 inside, and a group of spray holes 401 are arranged on the side of the tail. The spray holes 401 are connected with the water inlet channel 402, and the spray direction is along the axial direction of the drum body; the combined main blade 4 is equipped with an auxiliary blade 2, and the auxiliary blade 2 The blade 2 and the combined main blade 4 have an inclination angle; the sealing plate 3 is installed between the auxiliary blade 2 and the combined main blade 4, and the rib plate 5 is fixedly arranged between the combined main blade and the drum body 8; the end plate 6 is welded on the drum body 8, The outer side of the end plate 6 is provided with a wear plate 7 and a small pick 10 of the end plate along the axial direction of the drum body.

The feature of this technical solution is: adding small blades 9 and ribs 5 at the tail of the combined main blade 4, mainly to increase the strength of the combined main blade 4 and prevent the tail from cracking, and to add a sealing plate between the auxiliary blade 2 and the main blade 4 3. Increase the strength of the auxiliary blade 2 to prevent the pulverized coal from being squeezed into the gap between the auxiliary blade 2 and the combined main blade 4, causing the auxiliary blade 2 to crack. Add a spray hole at the tail of the combined main blade 4, and the spray direction is along the axis of the drum body In order to use water lubrication to prevent the excessive wear of the steel plate at the tail of the combined main blade 4 and cause the roller to fail, a wear-resistant plate 7 and a small pick 10 of the end disk are added to the front of the end plate 6 to prevent the end of the roller from being worn out when the roller cuts obliquely. Disk tooth seat and end disk blade. The use of such a type of roller improves the strength and wear resistance of the roller, improves economic efficiency and increases the life of the roller.

Further, a reinforcement ring 1 is installed inside the drum body 8 . It can prevent a large amount of coal slime from being squeezed into the drum body while reducing the axial movement of the drum.

Further, the wear plate 7 is rectangular.

The beneficial effects of the utility model are:

1) The strength of the combined main blade is greatly improved, and the problem of tail cracking is solved.

2) The strength of the auxiliary blades is greatly improved, and the pulverized coal is prevented from being squeezed into the gap between the auxiliary blades 2 and the combined main blades 4 of the drum, thereby preventing the auxiliary blades 2 from cracking. The auxiliary blades also improve the coal charging effect of the drum.

3) The setting of the spray hole improves the effect of water lubrication, and the spray direction is along the axial direction of the drum body, which can prevent excessive wear of the steel plate at the tail of the combined main blade 4, thereby prolonging the service life of the powerful drum.

4) Wear-resistant plates 7 and small picks 10 are added to the front of the end plate 6 to prevent the wear of the end plate tooth seat and the end plate blades when the roller is cut into the knife, and the use of such a form of roller improves the strength and wear resistance of the roller. Improve economic efficiency and increase drum life.

5) The setting of the reinforcing ring effectively prevents a large amount of coal slime from being squeezed into the drum body, and at the same time reduces the axial movement of the drum.

Description of drawings

Fig. 1 is a central axis sectional view of the powerful drum of the utility model coal shearer.

Fig. 2 is a view taken along direction K in Fig. 1 .

Fig. 3 is a sectional view along N-N direction in Fig. 1 .

In the figure, 1. Reinforcing ring, 2. Auxiliary blade, 3. Sealing plate, 4. Combined main blade, 5. Rib plate, 6. End plate, 7. Wear-resistant plate, 8. Roller body, 9. Small blade, 10. Small picks on the end plate.

Detailed ways

Below in conjunction with specific embodiment the utility model is further described.

Referring to Figs. 1-3, a shearer strong drum includes a drum body 8, combined main blades 4 and end disks 6. The tail of the combined main blade is equipped with a small blade 9, and the bottom of the small blade 9 is welded to the drum body 8; the rear of the combined main blade 4 is provided with a spray hole, and the combined main blade 4 is equipped with an auxiliary blade 2, and the auxiliary blade 2 is connected to the combined main blade. 4 has an inclination angle; a sealing plate 3 is installed between the auxiliary blade and the combined main blade, and a rib plate 5 is used to strengthen between the combined main blade 4 and the drum body 8 . The end plate 6 and the drum body 8 are welded together, and the outer side of the end plate is equipped with a wear-resistant plate 7 , in addition, the inner side of the drum body 8 is also equipped with a reinforcing ring 1 .

The effect of the specific structure of the powerful drum of the utility model coal shearer is introduced as follows: small blades 9 and ribs 5 are added at the tail of the combined main blade 4, mainly in order to increase the strength of the main blade and prevent the tail from cracking. A sealing plate 3 is added between the blades 4 to increase the strength of the auxiliary blades and prevent the pulverized coal from being squeezed into the gap between the auxiliary blades 2 and the blades 4 of the drum to cause the auxiliary blades to crack. The water lubrication prevents the excessive wear of the steel plate at the tail of the main blade and causes the roller to fail. Add wear-resistant blocks and small picks on the front of the end plate 6 to prevent the wear of the end plate tooth seat and the end plate blades when the roller is obliquely cut. The body is equipped with a reinforcing ring 1, which can prevent a large amount of coal slime from being squeezed into the drum body and reduce the axial movement of the drum. The use of such a type of roller improves the strength and wear resistance of the roller, improves economic efficiency, and increases the life of the roller.

The above are the embodiments of the utility model, and the scope of protection required by the utility model is equivalently defined with the scope defined in the claims.

Claims (3)

1. A coal shearer powerful drum, comprising a drum body (8), combined main blades (4), and an end plate (6), is characterized in that: A small blade (9) is installed at the tail of the combined main blade (4), and the bottom of the small blade (9) is welded and fixed to the drum body (8); The combined main blade (4) is provided with a water inlet channel (402) inside, and a group of spray holes (401) are provided on the side of the tail. The spray holes (401) communicate with the water inlet channel (402), and the spray direction is along the axial direction of the drum body. ; The combined main blade (4) is equipped with an auxiliary blade (2), and the auxiliary blade (2) has an inclination angle with the combined main blade (4); a sealing plate (3) is installed between the auxiliary blade (2) and the combined main blade (4). ), the rib plate (5) is fixedly arranged between the combined main blade and the drum body (8); The end disc (6) is welded on the drum body (8), and the outer side of the end disc (6) is provided with a wear-resistant plate (7) and a small end disc pick (10) along the drum body axial direction. 2. The shearer powerful drum according to claim 1, characterized in that: a reinforcing ring (1) is installed inside the drum body (8). 3. The shearer powerful drum according to claim 1, characterized in that: the wear-resistant plate (7) is rectangular.