CN217440017U

CN217440017U - Roller of coal mining machine and coal mining machine

Info

Publication number: CN217440017U
Application number: CN202220969074.6U
Authority: CN
Inventors: 宋利锋; 赵晋锋
Original assignee: Sany Heavy Equipment Co Ltd
Current assignee: Sany Heavy Equipment Co Ltd
Priority date: 2022-04-25
Filing date: 2022-04-25
Publication date: 2022-09-16
Anticipated expiration: 2032-04-25

Abstract

The embodiment of the utility model discloses a roller of a coal mining machine and the coal mining machine, wherein the roller comprises a cylinder body, blades and an end disc, and the blades and the end disc are arranged on the cylinder body; all be equipped with the main cutting tooth on blade and the end panel, the main cutting tooth is many helix arrangements to distance between two adjacent main cutting teeth on same transversal is 30mm-40mm, still is equipped with supplementary cutting tooth on the transversal between two adjacent main cutting teeth on same spiral, just supplementary cutting tooth also is helix arrangement, supplementary cutting tooth is used for cutting the coal spine, has reduced the distance between two adjacent main cutting teeth on same transversal like this, thereby reduces the produced area of coal spine, and still is equipped with supplementary cutting tooth between two adjacent main cutting teeth on same spiral to cut the coal spine, thereby reduce the cutting resistance of coal spine to the cylinder, so that the cylinder can operate with higher speed, has improved coal mining efficiency.

Description

Roller of coal mining machine and coal mining machine

Technical Field

The utility model relates to a coal mining machinery technical field particularly relates to a cylinder and coal-winning machine of coal-winning machine.

Background

At present, a drum shearer is generally adopted to cut coal in China. The drum of coal mining machine is a cylinder with helical blades and consists of an end disc, a cylinder body, blades, a tooth holder and cutting teeth, and the cutting teeth are arranged in the tooth holder welded on the end disc and the helical blades. When the coal cutting machine works, the roller rotates and moves radially to cut and crush coal. However, when the cutting teeth of the existing drum cut tough coal which does not develop in joints, the tough coal cannot be completely cut, and the tough coal forms bulges, namely coal ridges, at the parts of the cutting teeth which are not cut, so that greater resistance is generated between the cutting teeth and the coal ridges, the rotation speed of the drum is greatly reduced, even the cutting teeth stop rotating, the cutting operation is influenced, and the coal mining efficiency is reduced.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a drum and coal-winning machine of coal-winning machine to produce great resistance between solving current pick and the coal spine, thereby lead to the rotational speed greatly reduced of drum, stop rotating even, and then influence the operation of cutting, reduce coal mining efficiency's problem.

In a first aspect, the utility model provides a drum of a coal mining machine, which comprises a drum body, blades and an end disc, wherein the blades and the end disc are arranged on the drum body;

all be equipped with the main cutting tooth on blade and the end plate, the main cutting tooth is many helix arrangements, and the distance between two adjacent main cutting teeth on same spiral line is 30mm-40mm, still is equipped with supplementary pick on the transversal between two adjacent main cutting teeth on same spiral line, just supplementary pick also is the helix arrangement, supplementary pick is used for cutting the coal spine.

Optionally, the main pick and the auxiliary pick each comprise a block, a sleeve, a shank, and a bit; the tooth holder is fixed on the blade or the end disc, the tooth handle is fixed at the bottom of the tooth sleeve, the bottom of the tooth head is fixed in the groove of the tooth sleeve, and the tooth handle is installed on the tooth holder.

Optionally, the height of the gear sleeve is 100mm, and the diameter of the gear head is 22 mm; the tooth sleeve is of a cone structure, and the taper of the cone structure is 10 degrees.

Optionally, the exterior of the tooth head is covered with a wear resistant layer.

Optionally, the wear layer is a ceramic wear layer.

Optionally, the hardness of the tooth head is 50 HRC.

Optionally, the shank is an interference fit with the block.

Optionally, the tooth holder is integrally formed with the blade and end disc.

Optionally, the tooth holder is detachably connected with the blade and the end disc.

In a second aspect, the utility model provides a coal mining machine, the cylinder including fuselage and foretell coal mining machine, still be equipped with the connection pad on the barrel of coal mining machine, the barrel passes through the connection pad with the fuselage is connected.

According to the utility model provides a cylinder and coal-winning machine of coal-winning machine has reduced the distance between two adjacent main picks on same transversal to reduce the produced area of coal spine, and still be equipped with supplementary pick between two adjacent main picks on same helix, cut with the coal spine, thereby reduce the cutting resistance of coal spine to the cylinder, so that the cylinder can be with higher speed operation, improved coal mining efficiency.

Drawings

The following drawings of the present invention are used herein as part of the embodiments of the present invention for understanding the present invention. There are shown in the drawings, embodiments and descriptions of the invention, which are used to explain the principles of the invention.

In the drawings:

fig. 1 is a schematic structural view of a drum of a shearer according to an alternative embodiment of the present invention;

FIG. 2 is an arrangement of main and auxiliary picks of a blade according to an alternative embodiment of the invention;

FIG. 3 is an arrangement of a main pick and an auxiliary pick of a vane according to another alternative embodiment of the present invention;

FIG. 4 is a schematic view of the distance between two adjacent main picks on the same line;

FIG. 5 is a block diagram of a main pick and an auxiliary pick;

fig. 6 is a perspective view of the main pick and the auxiliary pick.

Description of reference numerals:

1-wear-resistant block, 2-end disc, 3-connecting disc, 4-blade, 5-roller, 6-main cutting pick, 7-auxiliary cutting pick, 8-tooth head, 9-tooth sleeve, 10-tooth handle and 11-tooth holder.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the present invention.

It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the invention. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

Exemplary embodiments according to the present invention will now be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. It is to be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of these exemplary embodiments to those skilled in the art.

In a first aspect, as shown in fig. 1 and fig. 2, the present invention provides a drum of a coal mining machine, which includes a drum body 5, blades 4 and an end disc 2, wherein the blades 4 and the end disc 2 are arranged on the drum body 5; all be equipped with main pick 6 on blade 4 and the end plate 2, main pick 6 is many helix arrangements, and the distance between two adjacent main pick 6 on same transversal is 30mm-40mm, still is equipped with supplementary pick 7 on the transversal between two adjacent main pick 6 on same spiral, and supplementary pick 7 also is the helix arrangement, and supplementary pick 7 is used for cutting the coal spine. Furthermore, the end disc 2 is also provided with a wear-resistant block.

The quantity of the section lines, the quantity of the spiral lines and the quantity of the main cutting teeth 6 on each spiral line arranged on the blades 4 and the end disc 2 can be set by workers according to actual cutting requirements, and the embodiment is not strictly limited.

As shown in fig. 4 and 3, the main cutting pick a and the main cutting pick B are two adjacent cutting picks on the same section line, the distance T between the main cutting pick a and the main cutting pick B is 30mm-40mm, the main cutting pick C and the main cutting pick B are two adjacent main cutting picks 6 on the same spiral line, and the auxiliary cutting pick D is located on the section line between the main cutting pick C and the main cutting pick B.

In this embodiment, the distance between two adjacent main picks 6 on the same section line is 30mm-40mm, so that the distance between two adjacent main picks 6 on the same section line is reduced, the area of the coal ridge is reduced, and an auxiliary pick 7 is further arranged between two adjacent main picks 6 on the same spiral line to cut the coal ridge, so that the cutting resistance of the coal ridge to the drum is reduced, the drum can operate at a higher speed, and the coal mining efficiency is improved.

Specifically, in the above embodiment, as shown in fig. 5 and 6, each of the main cutting pick 6 and the auxiliary cutting pick 7 includes the holder 11, the sleeve 9, the shank 10, and the head 8; a tooth holder 11 is fixed on the blade 4 or the end disc 2, a tooth handle 10 is fixed at the bottom of a tooth sleeve 9, the bottom of a tooth head 8 is fixed in a groove of the tooth sleeve 9, and the tooth handle 10 is arranged on the tooth holder 11; the height of the gear sleeve 9 is 100mm, and the diameter of the gear head 8 is 22 mm; the tooth sleeve 9 is a cone structure, and the taper of the cone structure is 10 degrees.

In this embodiment, set up the height H of the facing 9 to 100mm, the diameter D of the pick head 8 sets up to 22mm, and the tapering of centrum structure sets up to 10, thereby increase the height of main pick 6 and supplementary pick 7, reduce the width of main pick 6 and supplementary pick 7, thereby make every main pick 6 and supplementary pick 7 become more slender, and then reduce the cutting resistance that every main pick 6 and supplementary pick 7 received, and then make the cutting performance of cylinder better.

Further, the outside of the bit 8 is covered with a wear-resistant layer. The wear resistant layer may enhance the rigidity and wear resistance of the pick 8, thereby increasing the useful life of the pick 8.

Specifically, the wear resistant layer is a ceramic wear resistant layer. Compared with a tungsten-based wear-resistant layer, the ceramic wear-resistant layer has better wear resistance, so that the rigidity and the wear resistance of the tooth head 8 are better.

Further, the hardness of pick head 8 is 50HRC to further improved the rigidity of pick head 8, can reduce the cutting resistance that every main pick 6 and supplementary pick 7 received like this, and then made the cutting performance of cylinder better, can make pick head 8 have great rigidity again, reduce and cut the in-process and take place the risk of damage.

Further, the shank 10 and the seat 11 are in interference fit, so that the connection between the shank 10 and the seat 11 is more stable.

In some embodiments, the tooth holder 11 may be integrally formed with the blade 4 and the end disc 2, thereby eliminating the installation step of the tooth holder 11 and also increasing the stability of the connection of the tooth holder 11 with the blade 4 and the end disc 2.

In other embodiments, the block 11 may be removably connected to the vane 4 and the end disc 2 to facilitate replacement and maintenance of the blocks 11 of the main pick 6 and the auxiliary pick 7.

In a second aspect, the utility model provides a coal mining machine, including the cylinder of fuselage and foretell coal mining machine, still be equipped with connection pad 3 on the barrel 5 of coal mining machine, barrel 5 passes through connection pad 3 and is connected with the fuselage.

It should be noted that the roller according to the present embodiment may adopt the roller according to the foregoing embodiment, and for the specific antenna implementation and the working principle, reference may be made to the corresponding contents in the foregoing embodiment, and details are not described here again.

According to the utility model provides a coal mining machine has reduced the distance between two adjacent main cutting teeth 6 on same transversal to reduce the produced area of coal spine, and still be equipped with supplementary cutting tooth 7 between two adjacent main cutting teeth 6 on same helix, cut with the coal spine, thereby reduce the cutting resistance of coal spine to the cylinder, so that the cylinder can be with higher speed operation, has improved coal mining efficiency.

The present invention has been described in terms of the above embodiments, but it is to be understood that the above embodiments are for purposes of illustration and description only and are not intended to limit the invention to the described embodiments. Furthermore, it will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that many more modifications and variations are possible in light of the teaching of the present invention and are within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The roller of the coal mining machine is characterized by comprising a barrel body, blades and an end disc, wherein the blades and the end disc are arranged on the barrel body;

the main cutting picks are arranged in a plurality of spiral lines, the distance between every two adjacent main cutting picks on the same section line is 30-40 mm, auxiliary cutting picks are further arranged on the section line between every two adjacent main cutting picks on the same spiral line and are also arranged in a spiral line, and the auxiliary cutting picks are used for cutting coal ridges;

the main cutting pick and the auxiliary cutting pick respectively comprise a tooth holder, a tooth sleeve, a tooth handle and a tooth head; the tooth holder with blade and end disc integrated into one piece, perhaps the tooth holder with blade and end disc can dismantle the connection.

2. The shearer drum of claim 1, wherein the toothholder is fixed to the blade or the end disc, the tooth shank is fixed to a bottom of the tooth sleeve, a bottom of the tooth head is fixed to a groove of the tooth sleeve, and the tooth shank is mounted on the toothholder.

3. The shearer drum according to claim 2, wherein the height of the tooth casing is 100mm, and the diameter of the tooth head is 22 mm; the tooth sleeve is of a cone structure, and the taper of the cone structure is 10 degrees.

4. The shearer drum of claim 2, wherein an exterior of the tooth head is covered with a wear layer.

5. The shearer drum of claim 4, wherein the wear layer is a ceramic wear layer.

6. The shearer drum of claim 2, wherein the hardness of the tooth head is 50 HRC.

7. The shearer drum of claim 2, wherein the shank is an interference fit with the block.

8. A coal mining machine, characterized by comprising a machine body and the roller of the coal mining machine as claimed in any one of claims 1 to 7, wherein the roller body of the coal mining machine is further provided with a connecting disc, and the roller body is connected with the machine body through the connecting disc.