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Working device articulating mechanism

A technology of hinged mechanism and working device, which is applied in the direction of mechanical equipment, pivot connection, bearing components, etc., can solve the problems of poor dust-proof effect, achieve the effects of reducing impact, improving lubrication efficiency, and increasing oil storage capacity

Active Publication Date: 2015-03-25
LIUGONG CHANGZHOU MACHINERY +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a hinge mechanism of a working device, which can solve the problem of poor dustproof effect of the hinge mechanism of the working device of the existing engineering machinery

Method used

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Embodiment Construction

[0026] Below in conjunction with accompanying drawing example, the present invention is described in further detail:

[0027] Such as figure 1 and Figure 5 In the shown embodiment, this embodiment is that the hinge mechanism is used in the assembly of the boom and the arm, the floating seal ring 7-1 and the sealing ring 7-2 form the floating oil seal 7, and two pairs of floating oil seals form a static sealing device , respectively installed on the inner surface of the end of the bushing 13 in contact with the inner end surface of the right floating seal seat 14, the second floating oil seal cavity 18, and the inner surface of the end head of the bushing 13 in contact with the inner end surface of the left floating seal seat 4 In the provided first floating oil seal cavity 17, the bushing 13 is fixed on the arm 11 by the bolt 8, so as to prevent the bushing 13 from rotating during the working process. The bearing bush 2 is press-fitted in the bushing 13, the shaft 16 passes...

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Abstract

The invention provides a working device articulating mechanism, and relates to the technical field of construction machinery. The articulating mechanism comprises a bearing bush, a shaft arranged in the bearing bush in a penetrating way, and a dustproof ring, wherein a lining sleeves the bearing bush, and the two ends of the shaft respectively sleeve left and right floating seal seats; a first floating oil seal cavity is arranged on a surface, in contact with the left floating seal seat, of the lining, and a second floating oil seal cavity is arranged on a surface, in contact with the right floating seal seat, of the lining; the first and second floating oil seal cavities are communicated with the shaft, and a floating oil seal is arranged in each floating oil seal cavity. Compared with the prior art, the floating oil seals are respectively arranged on the inner end surfaces of the floating seal seats and in the floating oil seal cavities on the lining, so that a static seal is formed; when the floating oil seals contact with each other and rotate, an end surface dynamic seal is formed, and thus small particulate matters can not enter a part between the shaft and a shaft sleeve easily, and the dustproof effect is very good, and therefore, the adhesive wear and the abrasive wear of bearings can be reduced, and the reliability of a sliding bearing mechanism in work is improved.

Description

technical field [0001] The invention relates to the technical field of engineering machinery, in particular to a hinge mechanism of a working device. Background technique [0002] The connection between the working devices of construction machinery is generally connected by a sliding bearing hinge mechanism. Usually, the hinge mechanism is composed of a shaft, a bushing or a bearing bush, and a dustproof ring, and is lubricated by grease. However, the working conditions of construction machinery are harsh, and the distribution of working load is uneven, which may easily cause local stress on the shaft. In addition, the fluidity of the grease is poor, resulting in uneven local lubrication. Long-term work is likely to cause wear and failure of the shaft and the hole. [0003] There is generally an assembly gap of about 2-4mm between the boom and the stick ruler. During assembly, the plastic adjustment pad is used to adjust the assembly gap. The side gap is equipped with a dust...

Claims

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Application Information

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IPC IPC(8): F16C11/04F16C33/74F16C33/10
CPCF16C11/04F16C33/1055F16C33/1065F16C33/74
Inventor 李培冯豪石桂梅刘剑白容刑树鑫李德兴赵锋张影
Owner LIUGONG CHANGZHOU MACHINERY
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