JPH02106053U

JPH02106053U -

Info

Publication number: JPH02106053U
Application number: JP1443489U
Authority: JP
Priority date: 1989-02-09
Filing date: 1989-02-09
Publication date: 1990-08-23

Description

[Brief explanation of drawings]

第１図はこの考案の軸受部分と旋回制動ロツク
装置との関連を示す要部断面図、第２図は第１図
のＡ−Ａ線断面図、第３図は第１図のＢ−Ｂ線断
面図、第４図は実施例の油圧シヨベルを示す側面
図、第５図は旋回軸制動装置の回路図、第６図は
従来の旋回ロツク装置を示す断面図である。１……上部旋回体、３……下部走行体、７……
ケーシング、９……制動体、１０……被制動盤、
１１……スプリング、１２……シリンダ、１４…
…チヤツク装置、２８……内輪、２９……外輪。 Fig. 1 is a cross-sectional view of the main part showing the relationship between the bearing part and the swing brake lock device of this invention, Fig. 2 is a cross-sectional view taken along the line A-A in Fig. 1, and Fig. 3 is a cross-sectional view taken along the line B-B in Fig. 1. 4 is a side view showing the hydraulic excavator of the embodiment, FIG. 5 is a circuit diagram of a swing shaft braking device, and FIG. 6 is a sectional view showing a conventional swing lock device. 1... Upper rotating body, 3... Lower traveling body, 7...
Casing, 9... Braking body, 10... Braked plate,
11...Spring, 12...Cylinder, 14...
...chuck device, 28...inner ring, 29...outer ring.

Claims

[Scope of Claim for Utility Model Registration] (1) In a swing brake lock device for a working machine, which is provided with a bearing between an inner ring and an outer ring via rolling elements so that the working body can turn, either the inner ring or the outer ring. a brake plate that is integrally provided with the brake plate and is concentric with the shaft center; a pair of braking bodies that are provided so as to be interlocked with the other of the inner ring or the outer ring and that face each other with the brake plate vertically sandwiched therebetween; What is claimed is: 1. A swing brake lock device for a working machine, comprising: a control device for controlling displacement between a braking position in which the brake body pinches a brake target platen and a brake release position in which the brake body moves away from the brake target platen. (2) The swing braking lock device for a working machine according to claim 1, wherein the brake plate is fixed between the inner ring and the upper end of a connecting part of the lower running body fixed below the inner ring. . (3) A control device is held on a support piece that hangs down from the base of the upper revolving body to which the upper part of the outer ring is fixed, and the control device is connected to the hydraulic system of the work equipment and is attached to a pair of rods at the tip of the telescopic rod. a hydraulic cylinder holding a brake body; and a guide surface that is tapered to gradually approach the braked plate along the extension direction of the telescopic rod and guides the pair of brake bodies toward and away from each other. A swing braking lock device for a working machine according to claim 1.