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Apparatus for supplying lubricating grease to sliding arm

A technology of lubricating grease and sliding arm, which is applied in the direction of engine lubrication, lubricating parts, mechanically driven excavators/dredgers, etc., which can solve the problems of low operating efficiency, waste of lubricating grease, supplying lubricating grease, etc., and achieve improved operation Efficiency, ease of grease supply, prevention of useless consumption

Inactive Publication Date: 2005-04-20
KOMATSU LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, because each grease nipple 60, 61, 62 of the grease supply device disclosed in the above-mentioned publications is located at each grease groove 66, 67, 68 and each sliding pad 54, 55, 56, so when supplying grease, each telescopic arm tube 51, 52, 53 must be reliably in a fully retracted state
Therefore, time is spent on preparatory work for grease supply, resulting in low work efficiency
In addition, when the grease is supplied when the positions of the telescopic arm cylinders 51, 52, 53 are misaligned, the grease cannot be supplied to the sliding pads 54, 55, 56, and the grease is supplied to unnecessary places in vain.
In addition, when each telescopic arm cylinder 51, 52, 53 is extended after supplying grease with the telescopic arm cylinder fully retracted, the grease in the grease grooves 66, 67 falls into the telescopic arm cylinder unnecessary. places, therefore, wasted grease

Method used

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  • Apparatus for supplying lubricating grease to sliding arm
  • Apparatus for supplying lubricating grease to sliding arm
  • Apparatus for supplying lubricating grease to sliding arm

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0017] Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0018] figure 1 A side cross-sectional view showing an example of the slide arm 1 equipped with the grease supply device of the present invention. figure 2 yes figure 1 A-A direction view. exist figure 1 , 2 Among them, the inner arm 3 of the working machine 8 with a bucket at the front end is telescopically inserted into the outer wall 2 having a triangular cross-sectional shape, and the shape of the inner arm 3 is similar to the triangular shape of the outer arm 2 . Sliding pads 4, 5, 6 are respectively installed on three positions of the base end outer peripheral surface of the inner arm 3, the upper front end and the lower left and right front ends, and their outer peripheral surfaces are in contact with the inner surface of the outer arm 2 to form a sliding surface. . Grease grooves 10 , 11 , 12 which are surrounded by a certain range and ...

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PUM

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Abstract

The present invention relates to a grease supply device which is easy to supply grease to a sliding arm and can effectively utilize grease. For this reason, a grease supply port (30) is provided on the front end of the inner arm (3) inserted into the outer arm (2), and a plurality of through holes (20a, 20a, 21a, 22a), the above-mentioned through-holes (20a, 21a, 22a) are arranged near the front of a plurality of sliding pads (4, 5, 6), and each lubricating pad is provided on the outer peripheral surface of the inner side arm (3) around the above-mentioned through-holes. Grease tanks (10, 11, 12).

Description

technical field [0001] The present invention relates to a grease supply device for supplying grease to moving parts of freely telescopic slide arms or telescopic arms used in cranes or hydraulic excavators. Background technique [0002] At present, there are many kinds of grease supply devices for supplying grease to moving parts assembled into telescopic sliding arms or telescopic arms, one example of which is disclosed in Utility Laid-Open No. 62-17693. [0003] Figure 6 It is a side cross-sectional view of the grease supply device for the multi-stage telescopic arm disclosed in the above publication, showing the proximal end of the telescopic arm in the state where the telescopic arm is shortened to the shortest state. Figure 6 It shows the grease supply device in the case of 4-stage telescopic arms, which has the functions of inserting the telescopic arm barrels into the outermost telescopic arm barrel 50 telescopically and telescopically inserting...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02F3/39B66C23/687B66C23/697E02F3/36E02F9/00F16N21/06
Inventor 松田行信川岛久市
Owner KOMATSU LTD
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