CN202100257U

CN202100257U - Screw drum of coal mining machine

Info

Publication number: CN202100257U
Application number: CN2011201791952U
Authority: CN
Inventors: 华敏
Original assignee: WUXI MEIKE MINING MACHINERY PLANT
Current assignee: WUXI MEIKE MINING MACHINERY PLANT
Priority date: 2011-05-31
Filing date: 2011-05-31
Publication date: 2012-01-04
Anticipated expiration: 2021-05-31

Abstract

The utility model discloses a screw drum of a coal mining machine. The screw drum comprises a rotary drum body, a combination helical blade is arranged on the rotary drum body, a tooth holder is arranged on the helical blade, a cutting tooth is arranged on the tooth holder through a toothed sleeve, the cutting tooth comprises a toothed bar and a toothed head arranged at one end of the toothed bar, the toothed bar is a conical structure, and the front part of the toothed head is welded with a conical alloy head. The toothed head of the cutting tooth of the screw drum of the coal mining machine adopts the conical structure, the conical alloy head is fixed at the front end part of the toothed head, when the coal mining machine with the cutting tooth structure carries out coal extraction, the exploited coal is in a massive shape, therefore, the structure is simple, the mining efficiency is high, thereby reducing the coal mining cost relatively.

Description

A kind of Shearer Helical Drum

Technical field

The utility model relates to a kind of coal-winning machine, especially relates to a kind of Shearer Helical Drum.

Background technology

Shearer Helical Drum is the critical component of coal-winning machine, and the quality of its designing quality directly has influence on combines the coal mining efficient of adopting unit, and traditional Shearer Helical Drum comprises barrel; Be arranged at the combined helical blade on the barrel and be installed on the combination pick on the helical blade; Mostly traditional combination pick is flat structure, like this coal-winning machine in the course of the work, mostly the coal of exploitation is coal dust; Cause production efficiency low, cost is high.

The utility model content

The purpose of the utility model is to provide a kind of Shearer Helical Drum, and it has simple in structure, the characteristics that production efficiency height and cost are low.

The purpose of the utility model is to realize through following technical scheme:

A kind of Shearer Helical Drum, it comprises barrel, is arranged at the combined helical blade on the barrel; On the said helical blade toothholder is installed; Said pick is installed on the toothholder through the tooth cover, wherein, and the tooth head that said pick comprises ratch and is arranged at ratch one end; Said tooth head is a conical structure, and the leading section of tooth head is fixed with conical alloy head.

Especially, said alloy head is fixedly welded on the leading section of tooth head.

Especially, the weld strength of said alloy head is greater than 490MPa.

The beneficial effect of the utility model does; The tooth head of the pick of said Shearer Helical Drum is a conical structure, and the leading section of tooth head is fixed with conical alloy head, and the coal-winning machine that adopts this kind structure pick is when mining; The coal of exploitation is block; Not only simple in structure, and production efficiency is high, has reduced mining costs relatively.

Description of drawings

According to accompanying drawing and embodiment the utility model is done further explain below.

Fig. 1 is the lateral view of the utility model Shearer Helical Drum;

Fig. 2 is the sectional drawing of the pick of the utility model Shearer Helical Drum.

Among the figure:

1, barrel; 2, helical blade; 3, taper toothholder; 4, conical pick; 40, ratch; 41, tooth cover; 42, tooth head; 43, alloy head.

The specific embodiment

Please with reference to Fig. 1 and shown in Figure 2, Fig. 1 is the lateral view of the utility model Shearer Helical Drum; Fig. 2 is the sectional drawing of the pick of the utility model Shearer Helical Drum.In present embodiment, said Shearer Helical Drum comprises barrel 1, is arranged at the combined helical blade 2 on the barrel 1; On the said helical blade 2 taper toothholder 3 is installed; The tooth head 42 that said conical pick 4 comprises ratch 40 and is arranged at ratch 40 1 ends, said tooth head 42 is a conical structure, and the leading section of said tooth head 42 is welded with conical alloy head 43; Weld strength is greater than 490MPa, and said conical pick 4 utilizes ratch 40 to pass tooth cover 41 and is installed on the taper toothholder 3.

The employing conical pick of above-mentioned Shearer Helical Drum, and the tooth head leading section of conical pick is welded with conical alloy head, and coal-winning machine is when mining like this, and the coal of exploitation be block, not only simple in structure, and the production efficiency height, has reduced mining costs relatively.

Claims

1. Shearer Helical Drum; It comprises barrel, is arranged at the combined helical blade on the barrel, on the said helical blade toothholder is installed; Said pick is installed on the toothholder through the tooth cover; It is characterized in that: the tooth head that said pick comprises ratch and is arranged at ratch one end, said tooth head is a conical structure, and the leading section of tooth head is fixed with conical alloy head.

2. Shearer Helical Drum according to claim 1 is characterized in that: said alloy head is fixedly welded on the leading section of tooth head.

3. Shearer Helical Drum according to claim 2 is characterized in that: the weld strength of said alloy head is greater than 490MPa.