Coal mining machine and inner spraying device thereof

A technology of internal spraying and shearing machine, applied in the direction of earthwork drilling, cutting machinery, etc., can solve the problem of short service life and so on

Inactive Publication Date: 2013-09-11
SANY HEAVY EQUIP
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0007] In view of this, the present invention aims to propose an internal spray device of a coal shearer to solve the problems such as the short service life of the existing coal shearer internal spray device
[0008] The present invention also provides a coal shearer, which is equipped with the above-mentioned internal spray device to solve the problem of short service life of the existing coal shearer internal spray device

Method used

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  • Coal mining machine and inner spraying device thereof
  • Coal mining machine and inner spraying device thereof
  • Coal mining machine and inner spraying device thereof

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Embodiment Construction

[0044] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be pointed out that the description and sequence of specific structures in this section are only descriptions of specific embodiments, and should not be considered as limiting the protection scope of the present invention.

[0045] The specific structure of the embodiment of the present invention is, as Figure 3-Figure 5 As shown, the internal spray device of the shearer includes a spray seat 2, the spray seat 2 is provided with a fixed water inlet pipe 1, and a rotatable water outlet pipe 8 communicated with the water inlet pipe 1, through which the high-pressure Water, the spray seat 2 is provided with a chamber for transferring high-pressure water into the rotating outlet pipe 8, and the outlet pipe 8 can rotat...

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Abstract

The invention relates to a coal mining machine and an inner spraying device thereof. The inner spraying device of the coal mining machine comprises a self-rotating water outlet pipe in a spraying seat, and a first water seal and a second water seal which are used for hermetically blocking water for the outer wall of the water outlet pipe and installed in the spraying seat to prevent the water leakage at the water inlet end part of the water outlet pipe. Due to the sealing effect of the first water seal, the second water seal cannot contact water for a long time, and a first oil injection channel for lubricating the second water seal is formed in the spraying seat to prevent the dry grinding between the second water seal and the water outlet pipe. The structure uses the double seals, the water sealing effect of high-pressure water is ensured by the first water seal at the inlet end of the water outlet pipe, the second water seal is arranged in a second channel and subjected to grease lubrication through an oil injection pipeline so as to prevent the dry grinding between the second water seal and the water outlet pipe, prolong the service life of the second water seal, and further prolong the service life of the inner spraying device.

Description

technical field [0001] The invention relates to an internal spray device of a coal shearer, in particular to a coal shearer and the internal spray device applied to the coal shearer. Background technique [0002] At present, a large amount of dust will be generated during the working process of the coal mining machine. If the dust is not eliminated, the excessive dust will have serious consequences for the personal safety of the miners. Therefore, a spray device is often installed in the coal mining machine as an important tool for spraying dust. Its use effect and life directly affect the environment of the coal mining face, so the internal spray device is essential. [0003] One of the failures of the spray device in the shearer is the leakage of high-pressure water. In response to this phenomenon, many coal machine manufacturers and shearer design experts have continuously improved the service life of the internal spray device from different perspectives such as structure...

Claims

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Application Information

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IPC IPC(8): E21C35/22
Inventor 李庆茹杨琳琳申磊
Owner SANY HEAVY EQUIP
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