JPH0446150U

JPH0446150U -

Info

Publication number: JPH0446150U
Application number: JP8823090U
Authority: JP
Priority date: 1990-08-23
Filing date: 1990-08-23
Publication date: 1992-04-20

Description

[Brief explanation of drawings]

第１図は本考案の第１実施例に係る油圧パワー
シヨベルの側面図、第２図は第１実施例に係る油
圧パワーシヨベルの一部正面図、第３図は第１実
施例に係る油圧パワーシヨベルの一部正面図であ
つて、本考案の作用を説明する図、第４図は本考
案の第２実施例に係る油圧パワーシヨベルの側面
図、第５図は従来の油圧パワーシヨベルの側面図
、第６図は従来の油圧パワーシヨベルの一部正面
図、第７図は従来の油圧パワーシヨベルの一部正
面図であつて、その作用を説明する図である。１……下部走行体、２……上部旋回体、３，３
ａ……フロント部、４……ブーム、５……アーム
、６……バケツト、７ａ……ブームシリンダ、８
……アームシリンダ、９……バケツトシリンダ、
１０……支持ピン、１１……ブーム支持台、１２
……支持ピン、１３……ブーム支持部材、１４…
…左右傾動用の支持ピン、１５……ジヨイント部
材、１６……自在継手、１７……自在継手、２０
……支持ピン、２１……第２のブーム、２２……
ブームシリンダ。 FIG. 1 is a side view of a hydraulic power shovel according to the first embodiment of the present invention, FIG. 2 is a partial front view of the hydraulic power shovel according to the first embodiment, and FIG. 3 is a side view of the hydraulic power shovel according to the first embodiment. FIG. 4 is a side view of a hydraulic power shovel according to a second embodiment of the present invention, FIG. 5 is a side view of a conventional hydraulic power shovel, and FIG. The figure is a partial front view of a conventional hydraulic power shovel, and FIG. 7 is a partial front view of a conventional hydraulic power shovel, and is a diagram for explaining its operation. 1... Lower traveling body, 2... Upper revolving body, 3, 3
a...Front part, 4...Boom, 5...Arm, 6...Bucket, 7a...Boom cylinder, 8
...Arm cylinder, 9...Bucket cylinder,
10...Support pin, 11...Boom support stand, 12
...Support pin, 13...Boom support member, 14...
...Support pin for left and right tilting, 15...Joint member, 16...Universal joint, 17...Universal joint, 20
...Support pin, 21...Second boom, 22...
boom cylinder.

Claims

[Claims for Utility Model Registration] (1) An undercarriage, an upper revolving body rotatably mounted on the lower revolving body, a boom, and a plane including the rotational axis of the upper revolving body. a hydraulic power shovel including a connecting means that connects the upper revolving body to the upper revolving body so as to be pivotable in the vertical direction within the hydraulic power shovel, wherein the connecting means also pivots the boom in the left and right directions to align the long axis of the boom with the rotation axis. The booms are connected to the superstructure so as to be tiltable with respect to a plane containing the superstructure, and each upper end is connected to the boom by a first set of universal joints and each lower end is connected to the superstructure. A hydraulic power shovel, comprising first and second boom cylinders connected to the body by a second set of universal joints. (2) The connecting means includes a boom support base fixed to the upper revolving body, a joint member, a horizontal first support pin that pivotally connects the joint member to the boom support base, and a first horizontal support pin that connects the joint member to the boom support base. 2. The hydraulic power shovel according to claim 1, further comprising a second support pin pivotally attached to the base of said support pin and extending in a direction perpendicular to said first support pin. (3) The upper ends of the first and second boom cylinders are connected to both sides of the boom by the first set of universal joints, and the distance between the upper ends of these boom cylinders is such that the distance between the upper ends of these boom cylinders is A hydraulic power shovel according to claim 1, wherein these boom cylinders are arranged at an angle so that the distance between the lower ends thereof is smaller than the distance between the lower ends. (4) A practical device in which a second boom is connected to the tip of the boom so as to be pivotable in the vertical direction with respect to the boom, and a third boom cylinder is installed between these two booms. A hydraulic power shovel according to claim 1 of the patent registration claim.