CN201769139U

CN201769139U - Torque measuring pipe tongs

Info

Publication number: CN201769139U
Application number: CN2010205073307U
Authority: CN
Inventors: 宗世东; 刘杰; 蔡德志; 李广青
Original assignee: 宗世东
Priority date: 2010-08-27
Filing date: 2010-08-27
Publication date: 2011-03-23
Anticipated expiration: 2020-08-27

Abstract

The utility model relates to torque measuring pipe tongs which are one of the most common tools in pipeline installation, and as fluid in a pipeline has low pressure in the common pipeline installation, strict pre-tightening force is not needed; and in the installation process of a high-pressure pipeline in an oil field and the like, normal production can be affected seriously due to insufficient pre-tightening force, and even manpower, material resources and financial resources can be wasted. As for the torque measuring pipe tongs provided by the utility model, a torque pointer and a scale are installed on the basis of the common pipe tongs, and the torque value is marked on the scale. The torque measuring pipe tongs can effectively ensure the pre-tightening force of the pipeline, thus reducing the production risk; and the function of measuring the torque can be realized by certain improvement on the basis of the existing pipe tongs.

Description

A kind of torque measurement pipe wrench

Technical field

The utility model relates to a kind of oil field pipe erecting tools, particularly a kind of torque measurement pipe wrench.

Background technology

Pipe wrench is one of instrument the most frequently used during pipeline is installed.When general pipeline is installed, because the pressure of pipeline inner fluid is little, so do not need strict pretightning force; But when installing in high-voltage tube roads such as oil fields, the pretightning force deficiency will have a strong impact on normal production, even causes human and material resources and financial resources waste.

Summary of the invention

The utility model will provide a kind of torque measurement pipe wrench, can't control and influences the problem of ordinary production pretightning force when pipeline is installed to overcome existing pipe wrench.

In order to overcome the problem that prior art exists, technical scheme provided by the utility model is:

A kind of torque measurement pipe wrench comprises jaw and pincers handle, it is characterized in that: also comprise moment of torsion pointer and scale, described moment of torsion pointer stiff end is fixed in pincers handle top, and described scale is fixed on the pincers handle, and the pointer end of moment of torsion pointer points to scale.

Described torque measurement pipe wrench also comprises the moment of torsion handle, and described moment of torsion handle is fixedly welded on the pincers handle, and moment of torsion pointer stiff end is fixed in moment of torsion handle top, and described scale is fixed on the pincers handle, and the pointer end of moment of torsion pointer points to scale.

Compared with prior art, the utility model has the advantages that:

1, the utility model can effectively guarantee the pipeline pretightning force.Particularly in field produces, the problem that common sucker rod pretightning force is not enough can be well solved, and has reduced production risk;

2, the utility model makes certain improvements on the basis of existing pipe wrench and just can realize the function of its measurement moment of torsion.

Description of drawings

Fig. 1 is embodiment 1 structural representation;

Fig. 2 is embodiment 2 structural representations;

Description of reference numerals is as follows:

The 1-jaw, 2-clamps handle, 3-moment of torsion handle, 4-moment of torsion pointer, 5-scale.

The specific embodiment

Below in conjunction with accompanying drawing the utility model is described in detail.

Embodiment 1

Referring to Fig. 1, a kind of torque measurement pipe wrench comprises jaw 1 and pincers handle 2, also comprises moment of torsion pointer 4 and scale 5, and described moment of torsion pointer 4 stiff ends are fixed in pincers handle 2 tops, and described scale 5 is fixed on the pincers handle 2, and the pointer end of moment of torsion pointer 4 points to scale 5.

This embodiment uses pertinent instruments such as foil gauge or Huygens's electric bridge to measure pincers handle 2 stress values earlier when implementing, and calculates moment of torsion according to its deformation quantity, marks corresponding torque value again on scale 5.During use, pipe wrench is stepped up pipeline, till the required specified pretightning force of moment of torsion pointed sucker rod.

Embodiment 2

Referring to Fig. 2, a kind of torque measurement pipe wrench, comprise jaw 1 and pincers handle 2, also comprise moment of torsion handle 3, moment of torsion pointer 4 and scale 5, described moment of torsion handle 3 is fixed on the pincers handle 2, moment of torsion pointer 4 stiff ends are fixed in moment of torsion handle 3 tops, and described scale 5 is fixed on the pincers handle, and the pointer end of moment of torsion pointer 4 points to scale 5.

The utility model is done certain transformation on the basis of existing pipe wrench, increased moment of torsion handle 3, moment of torsion pointer 4 and scale 5, it is had have the function of measuring moment of torsion.The moment of torsion handle is the known metal material of a stress, calculates moment of torsion according to its deformation quantity, marks corresponding torque value again on scale 5.During use, pipe wrench is stepped up pipeline, till moment of torsion pointer 4 points to the required specified pretightning force of sucker rod.

Claims

1. a torque measurement pipe wrench comprises jaw (1) and pincers handle (2), it is characterized in that: also comprise moment of torsion pointer (4) and scale (5), described moment of torsion pointer (4) stiff end is fixed in pincers handle (2) top; Described scale (5) is fixed on the pincers handles (2), and the pointer end of moment of torsion pointer (4) points to scale (5).

2. a kind of torque measurement pipe wrench according to claim 1, it is characterized in that: also comprise moment of torsion handle (3), described moment of torsion handle (3) is fixedly welded on the pincers handles (2), moment of torsion pointer (4) stiff end is fixed in moment of torsion handle (3) top, described scale (5) is fixed on the pincers handles (2), and the pointer end of moment of torsion pointer (4) points to scale (5).