CN213294429U

CN213294429U - Mechanical gripper for steel pipe lifting

Info

Publication number: CN213294429U
Application number: CN202021846120.0U
Authority: CN
Inventors: 吴宇峰
Original assignee: Wuxi Haohao Steel Pipe Co ltd
Current assignee: Wuxi Haohao Steel Pipe Co ltd
Priority date: 2020-08-31
Filing date: 2020-08-31
Publication date: 2021-05-28
Anticipated expiration: 2030-08-31

Abstract

The utility model relates to a steel pipe workshop subassembly, steel pipe handling is grabbed with machinery specifically says so. The lifting device is characterized by comprising supporting blocks, wherein vertically arranged U-shaped lifting lugs are fixed at the upper parts of the supporting blocks, two ends of an opening part of each U-shaped lifting lug are fixed on a group of opposite side walls of each supporting block, and the closed ends of the U-shaped lifting lugs are positioned above the supporting blocks. The lower part of the supporting block is hinged with two supporting arms, the upper ends of the two supporting arms are hinged on the supporting block through pin shafts, and the two supporting arms are splayed. The clamping jaw type clamping device is characterized in that a v-shaped supporting plate is arranged below the pin shaft, the top point of the v-shaped supporting plate is located below the pin shaft, clamping jaws are arranged at the lower ends of the supporting arms, the upper portions of the clamping jaws are hinged to the corresponding supporting arms, the two clamping jaws are arranged in a front-back crossed mode, and the middle portions of bending sections of the clamping jaws are hinged to the corresponding ends of the v-shaped supporting plates respectively. And the steel pipe is not easy to drop by adopting a mechanical grab, so that potential safety hazards can be avoided.

Description

Mechanical gripper for steel pipe lifting

Technical Field

The utility model relates to a steel pipe workshop subassembly, the steel pipe handling that is used for when the steel pipe handling, fixed steel pipe is specifically said and is grabbed with machinery.

Background

At present, an appliance for hoisting steel pipes in a steel pipe workshop is a simple steel wire rope. When the steel wire rope is used, two ends of the steel wire rope are connected with the travelling crane, so that the steel wire is U-shaped. When in lifting, a worker firstly operates the travelling crane to drive the steel wire rope to descend; then, the steel pipe is held by a steel wire rope; then, the travelling crane hoists the steel pipe to a target position; and finally, taking the steel wire rope out of the steel pipe. The steel wire rope is adopted to hoist the steel pipe, so that the contact area is small, the falling risk is easy to occur, and the potential safety hazard is caused.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a steel pipe handling is grabbed with machinery, adopts machinery to grab, and the steel pipe is difficult for dropping, can avoid the potential safety hazard.

In order to solve the problems, the following technical scheme is provided:

the utility model discloses a steel pipe handling is with mechanical characteristics of grabbing is including the supporting shoe, and the upper portion of supporting shoe is fixed with vertical arrangement's U-shaped lug, and the both ends of U-shaped lug opening are fixed on a set of relative lateral wall of supporting shoe, and the blind end of U-shaped lug is located the supporting shoe top. The lower part of the supporting block is hinged with two supporting arms, the upper ends of the two supporting arms are hinged on the supporting block through pin shafts, and the two supporting arms are splayed. The clamping jaw type clamping device is characterized in that a v-shaped supporting plate is arranged below the pin shaft, the top point of the v-shaped supporting plate is located below the pin shaft, clamping jaws are arranged at the lower ends of the supporting arms, the upper portions of the clamping jaws are hinged to the corresponding supporting arms, the two clamping jaws are arranged in a front-back crossed mode, and the middle portions of bending sections of the clamping jaws are hinged to the corresponding ends of the v-shaped supporting plates respectively.

And arc-shaped limiting plates are arranged on the inner side surfaces of the v-shaped supporting plate and the clamping jaw bending section.

By adopting the scheme, the method has the following advantages:

because the utility model discloses an upper portion of supporting shoe is fixed with vertical arrangement's U-shaped lug, the lower part of supporting shoe articulates there are two support arms, the upper end of two support arms articulates on the supporting shoe through first round pin axle, be the splayed between two support arms, there is the v-shaped backup pad below of first round pin axle, the opening of v-shaped backup pad is down, the lower extreme of support arm all has the clamping jaw, the upper portion of this clamping jaw articulates on the support arm that corresponds, cross arrangement around becoming between two clamping jaws, the middle part of clamping jaw bending segment is equallyd divide and is do not articulated the correspondence that holds in the v-shaped backup. When in use, the U-shaped lifting lug is connected with the travelling crane. When in lifting, a worker firstly operates the travelling crane to drive the lifting appliance to move downwards; then, the worker operates the two clamping jaws to clamp the steel pipe; then, the travelling crane is controlled to move downwards, and the clamping jaw grasps the steel pipe under the action of gravity; then, the travelling crane hoists the steel pipe to a target position; and finally, the crane descends, and the clamping jaw is taken down. Compared with the prior art, the mechanical grab has a large contact area with the steel pipe, the steel pipe is not easy to drop, and potential safety hazards caused by the dropping of the steel pipe are avoided.

Drawings

Fig. 1 is a schematic structural view of the steel pipe lifting mechanical gripper of the utility model.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1, the utility model discloses a steel pipe handling is grabbed with machinery includes supporting shoe 1, and the upper portion of supporting shoe 1 is fixed with vertical arrangement's U-shaped lug 2, and the both ends of 2 openings of U-shaped lug are fixed on a set of relative lateral wall of supporting shoe 1, and the blind end of U-shaped lug 2 is located supporting shoe 1 top. The lower part of the supporting block 1 is hinged with two supporting arms 4, the upper ends of the two supporting arms 4 are hinged on the supporting block 1 through pin shafts 3, and the two supporting arms 4 are splayed. The V-shaped supporting plate 5 is arranged below the pin shaft 3, the vertex of the V-shaped supporting plate 5 is positioned below the pin shaft 3, the clamping jaws 7 are arranged at the lower ends of the supporting arms 4, the upper parts of the clamping jaws 7 are hinged on the corresponding supporting arms 4, the two clamping jaws 7 are arranged in a front-back crossed mode, and the middle parts of bending sections of the clamping jaws 7 are hinged on the corresponding ends of the V-shaped supporting plates 5 respectively.

In order to further increase the contact area, the inner side surfaces of the bent sections of the v-shaped supporting plate 5 and the clamping jaw 7 are provided with arc-shaped limiting plates 6.

When in use, the U-shaped lifting lug 2 is connected with the travelling crane. During hoisting, a worker firstly operates the travelling crane to drive the hoisting tool to move downwards. Then, the worker operates the two jaws 7 to cause the two jaws 7 to grip the steel pipe. Then, the travelling crane is controlled to move downwards, and the clamping jaw 7 grasps the steel pipe under the action of gravity; and then, the travelling crane hoists the steel pipe to a target position. And finally, the crane descends, and the clamping jaw 7 is taken down.

Claims

1. The mechanical gripper for steel pipe hoisting is characterized by comprising a supporting block (1), wherein vertically arranged U-shaped lifting lugs (2) are fixed at the upper part of the supporting block (1), two ends of the opening part of each U-shaped lifting lug (2) are fixed on a group of opposite side walls of the supporting block (1), and the closed end of each U-shaped lifting lug (2) is positioned above the supporting block (1); the lower part of the supporting block (1) is hinged with two supporting arms (4), the upper ends of the two supporting arms (4) are hinged on the supporting block (1) through pin shafts (3), and the space between the two supporting arms (4) is in a splayed shape; there is v-arrangement backup pad (5) below round pin axle (3), and the summit of v-arrangement backup pad (5) is located round pin axle (3) below, the lower extreme of support arm (4) all has clamping jaw (7), and the upper portion of clamping jaw (7) articulates on support arm (4) that corresponds, and the front and back cross arrangement becomes between two clamping jaws (7), and the middle part of clamping jaw (7) bending segment is equallyd divide and is articulated respectively on the corresponding of v-arrangement backup pad (5) holds.

2. The mechanical grab for lifting steel pipes of claim 1, wherein the inner side surfaces of the bending sections of the v-shaped support plate (5) and the clamping jaw (7) are provided with arc-shaped limiting plates (6).