CN2923220Y

CN2923220Y - Mechanical grip

Info

Publication number: CN2923220Y
Application number: CN 200620087133
Authority: CN
Inventors: 孙华; 李向阳; 姜保乐; 付丽华; 孙承暖
Original assignee: Qingdao Port Group Co Ltd
Current assignee: Qingdao Port Group Co Ltd
Priority date: 2006-07-19
Filing date: 2006-07-19
Publication date: 2007-07-18
Anticipated expiration: 2016-07-19

Abstract

The utility model discloses a mechanical holding claw aiming at overcoming the shortcoming that the existing lifting of rods and bars is based on binding the rods and bars by steel wire ropes, which is unsafe and low in working efficiency. The neck of a vertically fixed shaft is provided in a sliding way with a hoist link. The lower end of the fixed shaft is provided with a fixed pawl, and an active pawl is arranged in correspondence with the fixed pawl. The middle of a hold of the active pawl is supported by the lower end of the fixed shaft. The upper end of the hold is flexibly connected with the hoist link. Because the upper end of the hold of the active pawl arranged in correspondence with the fixed pawl is flexibly connected with the hoist link, therefore, during a hoisting operation, after the mechanical grip pawl is dropped, the active claw can be arranged on the superior surface of an object to be hoisted to automatically open and clamp the object, and then the hoist link is lifted, a connected rod is driven to make the active claw automatically bite the object so that the object is prevented from sliding or swinging freely. After landing, the object is landed can be easily unloaded by gently pulling the clamping jaw by hands, thereby making the clamping and gripping of the clamping jaw reliable and the mounting and dismounting of the object convenient. The utility model can not only grips objects like rods and bars, but also be applied in the hoisting of all kinds of bar sections such as reversed H shaped iron steel.

Description

The machinery jaw

Technical field

The utility model belongs to lifting device, and specifically a kind of workshop is used for lifting the mechanical jaw of the small-sized bar of clamping.

Background technology

Small round steel, bar that can't move with staff in the workshop lifting add man-hour, how with the steel wire rope binding, deliver to machining location processing with the crane lifting.Because the maintenance of steel wire rope generally is to coat butter, the surface is sent out sliding, causes the inclination or the landing of bar during the binding lifting easily; When the bar anchor point of lifting not to the time, wave easily after slinging, bring danger also can for people and equipment; Moreover steel wire rope grown to have played thorn easily service time, stabs the operator when manually bundling easily.Also have, manually low with steel wire rope binding lifting bar work efficiency, people's goods is regardless of also dangerous.There are many unsafe factors in above-mentioned in a word lifting mode.

The utility model content

Technical problem to be solved in the utility model is, overcomes the shortcoming that existing lifting bar is dangerous with the steel wire rope binding, work efficiency is low, and a kind of mechanical jaw of clamping bar is provided.

In order to solve the problems referred to above that prior art exists, the utility model is to adopt following technical proposals to realize: on vertical fixed axis axle journal, be with the lifting suspension ring slidably; Lower end at fixed axis is equipped with fixed claw, and movable claw is relative with fixed claw to be installed, and the middle part of movable latch spoon is bearing in the lower end of fixed axis, and the upper end of handle and suspension ring flexibly connect.

Being with suspension ring slidably on the described fixed axis axle journal, is to be with sliding sleeve on the fixed axis axle journal slidably, and suspension ring are fixed on the sliding sleeve;

The upper end of described movable latch spoon is connected with suspension ring, is that the handle upper end of movable claw is connected with an end hinge of connecting rod, and the other end of connecting rod and described sliding sleeve flexibly connect.

Advantage of the present utility model and good effect are, because the handle of the movable claw of relative installation with fixed claw upper end and suspension ring flexible connection, during lifting, the machinery jaw falls only need put it to the upper surface of lifting object, suspension ring glide, and under the effect of connecting rod, movable claw just can open automatically; Wait to clamp behind the lifting object upwards lifting ring, an end of drivening rod upwards, the other end promotes the handle upper end of movable claw, makes movable claw bite lifting object automatically, though the suspender retaining part not in the midpoint of lifting object length, also will never slippage or disorderly swing.When unloading hook, treat that lifting object lands, gently push jaw aside with have gentle hands, can unload easily, clamping is reliable, and is easy to loading and unloading.Through overtesting, above-mentioned mechanical jaw maximum open diameter can reach Φ 230mm, and it can not only the clamping round steel, bar, also can be used to lift multiple section bars such as I-steel.

Description of drawings

Fig. 1 looks schematic diagram for master of the present utility model.

The specific embodiment

The utility model is described in further detail below in conjunction with drawings and Examples.

Among Fig. 1, on vertical fixed axis 7 axle journals, be with lifting suspension ring 4 slidably; In the lower end of fixed axis 7, be installed with the downward fixed claw of claw 1, movable claw 2 and fixed claw 1 relative installation, handle 2.1 middle parts of movable claw 2 are bearing in lower end, the upper end of the handle 2.1 of movable claw 2 and suspension ring 4 flexible connections of fixed axis 7 with bearing pin 9.

The suspension ring of installing on described fixed axis 7 axle journals 4 are to slide up and down to be with sliding sleeve 5 on fixed axis 7 axle journals, and suspension ring 4 are fixed on the outer wall of sliding sleeve 5.

Handle 2.1 upper ends of described movable claw 2 and suspension ring 4 flexibly connect, and are that an end of upper end and the connecting rod 3 of the handle 2.1 on the movable claw 2 is connected as hinge by bearing pin 8, and the other end of connecting rod 3 is movably connected on the outer wall of described sliding sleeve 5 by pin 6.

Claims

1, a kind of mechanical jaw comprises the pawl that the clamping material is used, and it is characterized in that: on vertical fixed axis axle journal, be with the lifting suspension ring slidably; Lower end at fixed axis is equipped with fixed claw, and movable claw is relative with fixed claw to be installed, and the handle middle part of movable claw is bearing in the lower end of fixed axis, and the upper end of handle and suspension ring flexibly connect.

2, mechanical jaw as claimed in claim 1 is characterized in that: being with suspension ring slidably on the described fixed axis axle journal, is to be with sliding sleeve on the fixed axis axle journal slidably, and suspension ring are fixed on the sliding sleeve.

3, mechanical jaw as claimed in claim 1 is characterized in that: the handle upper end of described movable claw is connected with suspension ring, is that the handle upper end of movable claw is connected with an end hinge of connecting rod, and the other end of connecting rod and described sliding sleeve flexibly connect.