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Coal mining machine

A shearer and traveling wheel technology, which is applied to earth-moving drilling, slitting machinery, propulsion, etc., can solve the problems of insignificant protection effect of traveling wheels, inconspicuous protection of traveling wheels, and hysteresis of electrical protection, etc. Portable, light weight and low cost effect

Active Publication Date: 2015-04-22
SANY HEAVY EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Its main disadvantage is that: the torque shaft is connected to the motor and the first shaft. When the torque shaft breaks, all the transmission parts between the road wheel and the torque shaft are under heavy load, which has caused certain damage to the transmission system and damaged the road wheel. The protection is not obvious; in addition, the electrical protection also has obvious hysteresis, and the protection effect on the walking wheels is not obvious

Method used

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  • Coal mining machine
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Embodiment Construction

[0008] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0009] Such as figure 1 As shown, the traction part of the coal mining machine includes: traveling wheel 2, bearing 3, final planet carrier 4, guide shoe 7 and scraper machine 8, among which, the installation method of bearing 3, guide shoe 7 and scraper machine 8 It is the same as the prior art and will not be repeated here. Such as Figure 1-Figure 2 As shown, the embodiment of the overload protection device for the traveling wheel 2 includes: a torque connecti...

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Abstract

The invention provides an overload protecting device for a running wheel of a coal mining machine and the coal mining machine provided with the overload protecting device. The overload protecting device for the running wheel of the coal mining machine comprises a torque connecting ring, wherein the torque connecting ring is connected with the running wheel of the coal mining machine and is also connected with a final-stage planet carrier of a drawing part of the coal mining machine. According to the invention, the purpose of transferring overload protection from a high-speed end to the running wheel is achieved and an effective protecting function on the running wheel of a vulnerable part is performed.

Description

technical field [0001] The invention relates to the field of engineering machinery, in particular to a coal shearer. Background technique [0002] At present, there is a friction torque limiter to realize the overload protection of the coal mining traction part, which is characterized by the large volume of the protection device, and at the same time, the protection is at the high-speed end, the friction plate is easy to wear, and it is difficult to succeed in the rocker arm and traction of the coal mining machine. application. In addition, the current coal shearer also adopts the motor torque shaft or electrical protection to protect the traction and travel transmission system in terms of traction overload protection. Its main disadvantage is that: the torque shaft is connected to the motor and the first shaft. When the torque shaft breaks, all the transmission parts between the road wheel and the torque shaft have been overloaded, which has caused certain damage to the tr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21C29/22E21C35/04
Inventor 科诺尔尹力戴玉龙
Owner SANY HEAVY EQUIP CO LTD
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