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Inner atomizing type telescopic cutting mechanism and tunneling machine

A technology of internal spraying and cutting head, which is applied in the field of internal spraying retractable cutting mechanism and roadheader, can solve the problems of poor sealing effect and achieve the effect of improving sealing reliability and service life

Pending Publication Date: 2020-06-23
天津市汇智尘科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of this application is to provide an internal spray retractable cutting mechanism and roadheader to solve the technical problem of poor sealing effect between the retractable cutting mechanism and the water pump in the prior art

Method used

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  • Inner atomizing type telescopic cutting mechanism and tunneling machine
  • Inner atomizing type telescopic cutting mechanism and tunneling machine
  • Inner atomizing type telescopic cutting mechanism and tunneling machine

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Embodiment Construction

[0038] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them.

[0039] The components of the embodiments of the invention generally described and shown in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention.

[0040] Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0041] In the description of the present invention, it should be noted that the...

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Abstract

The invention relates to the technical field of tunneling machines, in particular to an inner atomizing type telescopic cutting mechanism and a tunneling machine. According to the inner atomizing typetelescopic cutting mechanism, an installing cavity for containing a water pump is formed in a cutting head shaft, and accordingly inner arrangement of the water pump is achieved. The cutting head shaft and a seal sleeve are matched to form a water inlet channel for supplying water to the water pump, and a rotation seal for low-pressure water inflow is formed at the connected position of the cutting head shaft and the seal sleeve. A static seal is formed between the high-pressure water outlet end of the internally-arranged water pump and a pressure water way of the cutting head shaft, and therefore the seal reliability of the inner atomizing type telescopic cutting mechanism can be improved, and the service life of the inner atomizing type telescopic cutting mechanism can be prolonged. Theprovided tunneling machine comprises the inner atomizing type telescopic cutting mechanism, and therefore the cutting mechanism can achieve the telescopic function, meanwhile, the seal reliability isimproved, and the service life is prolonged.

Description

technical field [0001] The invention relates to the technical field of roadheading machines, in particular to an inner-spray retractable cutting mechanism and a roadheader. Background technique [0002] The roadheader is widely used in coal mine underground roadway excavation. The cutting mechanism is a part of the roadheader. It is connected with a water pump to spray water mist during the working process of the roadheader to suppress dust, cool the pick, reduce the consumption of the pick and avoid Cutting sparks and other effects. [0003] The existing water pump is externally arranged on the cutting mechanism, and the water outlet of the water pump is connected to the nozzle in the cutting mechanism through a pipeline. However, the water supplied by the water pump is high-pressure water, so the sealing effect between the water pump and the cutting mechanism is poor, especially for the retractable cutting mechanism. Contents of the invention [0004] The purpose of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21C25/00E21C35/00E21C35/23
CPCE21C25/00E21C35/00E21C35/23
Inventor 杨清立
Owner 天津市汇智尘科技有限公司
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