JPH0376087U

JPH0376087U -

Info

Publication number: JPH0376087U
Application number: JP11794690U
Authority: JP
Priority date: 1990-11-10
Filing date: 1990-11-10
Publication date: 1991-07-30
Anticipated expiration: 2003-02-24
Also published as: JPH057355Y2

Description

[Brief explanation of drawings]

第１図〜第３図は本考案の実施例に係る石油掘
削装置用パイプのクランプ装置を示すもので、第
１図は石油掘削装置の概略全体斜視図、第２図は
クランプ装置の斜視図、第３図は同正面図、第４
図〜第６図は従来例に係り、第４図は石油掘削装
置の概略全体斜視図、第５図はフツク式ブリツジ
クレーンの側面図、第６図はクランプ式ブリツジ
クレーンの正面図である。３……パイプ、２２……当接部、２４……クラ
ンプ本体、２５……平行リンク機構、２６……第
１リンク部材、２７……第２リンク部材、２８…
…第３リンク部材、３３……スライデイング部材
、３６……クランプ部材、３８……開閉用油圧シ
リンダ、４０……連結ロツド、４３……クランプ
用油圧シリンダ、６２……同期用リンク機構。 1 to 3 show a clamping device for a pipe for an oil drilling rig according to an embodiment of the present invention, FIG. 1 is a schematic overall perspective view of the oil drilling rig, and FIG. 2 is a perspective view of the clamping device. , Figure 3 is the same front view, Figure 4
Figures 6 to 6 relate to conventional examples, Figure 4 is a schematic overall perspective view of an oil drilling rig, Figure 5 is a side view of a hook type bridge crane, and Figure 6 is a front view of a clamp type bridge crane. be. 3... Pipe, 22... Contact portion, 24... Clamp body, 25... Parallel link mechanism, 26... First link member, 27... Second link member, 28...
...Third link member, 33...Sliding member, 36...Clamp member, 38...Hydraulic cylinder for opening/closing, 40...Connection rod, 43...Hydraulic cylinder for clamp, 62...Synchronization link mechanism.

Claims

[Scope of utility model registration request]

A pair of left and right parallel link mechanisms are provided on both the left and right sides of the clamp body, which are movable in a plane perpendicular to the front and back direction.
Each parallel link mechanism includes a first link member whose inner end is connected to the upper end of the clamp body and extends outward, and a second link member whose upper end is connected to the middle of the first link member and extends downward; a third link member whose inner end is connected to the lower end of the clamp body, extends outward, and whose outer end is connected to the lower part of the second link member, A pair of left and right sliding members are provided at the lower part thereof, each connected to each other so as to be movable up and down by a predetermined stroke, and extending downward, and each of the left and right sliding members is connected to the lower end portions of the pair so as to be rotatable about an axis in the front and back directions. a pair of left and right clamp members facing each other and holding down both left and right sides of the lower part of the pipe, and providing a contact part for receiving the upper part of the pipe at the lower end of the clamp body,
Synchronization for mechanically connecting arm parts protruding from the inner ends of the pair of left and right first link members in order to vertically swing the pair of left and right first link members symmetrically and synchronously. A link mechanism is provided, and a pair of left and right opening/closing cylinders are provided for swingingly driving a pair of left and right first link members via the synchronization link mechanism, and an outer end of each of the first link members and a sliding member are provided. A connecting rod is provided that extends over the upper end and is capable of moving the sliding member up and down in conjunction with the vertical swing of the first link member. A pipe clamp device comprising a pair of left and right clamping hydraulic cylinders that swing vertically relative to a sliding member about a connecting portion with a lower part of the riding member as a rotation center.