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Rotary vertical shaft sealing device of forward excavator

A front shovel excavator and sealing device technology, which is applied to earth moving machines/shovels, construction, etc., can solve the difficulty of installing the annular baffle 9 and the oil seal 8, improve labor intensity and operating cost, and troublesome to replace the oil seal 8, etc. problems, to achieve the effect of reducing unsafe factors, reducing labor, and adjusting process safety

Active Publication Date: 2012-04-25
TAIYUAN HEAVY IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] As the size of the excavator continues to increase, due to space constraints, the installation of the ring baffle 9 and the oil seal 8 will become more and more difficult
In addition, the oil seal 8 is a vulnerable part and needs to be replaced frequently. It is very troublesome to replace the oil seal 8 each time, which affects work efficiency and increases labor intensity and operating costs.

Method used

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  • Rotary vertical shaft sealing device of forward excavator
  • Rotary vertical shaft sealing device of forward excavator
  • Rotary vertical shaft sealing device of forward excavator

Examples

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Embodiment Construction

[0025] Typical embodiments embodying the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention is capable of various changes in different embodiments without departing from the scope of the present invention, and that the description and drawings therein are illustrative in nature and not limiting. this invention.

[0026] Such as figure 2 As shown, the present invention includes a bearing sleeve 1 and a positioning sleeve 2 . Wherein, the bearing sleeve 1 is used to cooperate with the outer ring of the fixed bearing 4 , and the positioning sleeve 2 is used to fix the inner ring of the bearing 4 .

[0027] Such as image 3 As shown, the outer ring of the bearing 4 is installed in the bearing sleeve 1 to prevent the axial movement of the bearing 4, and the bearing sleeve 1 is installed in the rotary vertical shaft bracket 5. The setting of the bearing sleeve 1 facilitate...

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Abstract

The invention discloses a rotary vertical shaft sealing device of a forward excavator, which comprises a location sleeve and a bearing sleeve, wherein an inner hole of the location sleeve is provided with a location structure arranged on a rotary vertical shaft, the bearing sleeve is provided with an oil charging hole for communicating a lubricating channel of a bearing arranged in the bearing sleeve, and the outer circumferential surface of the location sleeve and the inner circumferential surface of the bearing sleeve are provided with sealing structures for jointly sealing a space of an outlet on the bearing. The invention has the advantages that: compared with the prior art, the rotary vertical shaft sealing device realizes all functions of the prior art under the condition of reducing quantity of sealing elements, is convenient for assembly and disassembly, thereby reducing unsafe factors, deceasing regulation period and labor output, greatly increasing working efficiency, and ensuring that the regulation process is safer and more humane and accords with demands of fast-paced modern production.

Description

technical field [0001] The invention relates to a front shovel excavator, in particular to a front shovel excavator rotary vertical shaft sealing device. Background technique [0002] On the large-scale mine-used shovel excavator, the torque generated by the motor is transmitted through the slewing gear to the slewing ring gear through the slewing device, so that the entire upper device of the excavator performs slewing motion. The lower part of the rotary vertical shaft is supported by self-aligning roller bearings, and the self-aligning roller bearings are lubricated by an automatic lubrication system. Such as figure 1 As shown, the upper sealing device of the rotary vertical shaft bearing of the traditional front shovel excavator includes: a bearing sleeve 6, a positioning sleeve 7, an oil seal 8, an annular baffle 9, bolts 10, and the like. The upper part of the bearing is fixed on the rotary vertical shaft 3 by the positioning sleeve 7 . The annular baffle 9 is fixed...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02F9/00
Inventor 贺建平王晓明
Owner TAIYUAN HEAVY IND
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