CN203566166U

CN203566166U - Copper lining tensioning mechanism for inner wall of pipeline

Info

Publication number: CN203566166U
Application number: CN201320365354.7U
Authority: CN
Inventors: 王光临; 李建春; 朱品; 张丽; 郭利鸽
Original assignee: LUOYANG DEPING MECHANICAL EQUIPMENTS CO Ltd
Current assignee: Luoyang Deping Technology Co ltd
Priority date: 2013-06-25
Filing date: 2013-06-25
Publication date: 2014-04-30
Anticipated expiration: 2023-06-25

Abstract

The utility model relates to the technical field of butt welding and discloses a copper lining tensioning mechanism for the inner wall of a pipeline. The copper lining tensioning mechanism comprises a copper lining faceplate, through covers, copper linings, lock nuts, brackets, copper lining push rods, gas ports, work chambers, guide rings and seal rings, wherein the N copper linings uniformly distributed on the same circumference are respectively connected with the copper lining push rods, which correspondingly penetrate through the guide rings, the through covers and the brackets, of N cylinders, and the N copper linings are locked and fixed by the lock nuts; the other end of each of the copper lining push rods of the N cylinders serves as a center of the circumference; the center of the N cylinders is the center gas port b; one cylinder at the central ends of all the copper lining push rods is the work chamber b; the cylinders at the copper lining ends of the copper lining push rods are the work chamber a; and the work chambers a of the copper lining push rods of the N cylinders are communicated with the gas port a through pipes. The copper lining tensioning mechanism can guarantee that the N copper linings uniformly distributed on the same circumference are synchronously supported, tensioned and recovered and prevent welded defective products from being produced during the butt welding; and the copper lining tensioning mechanism has the advantages of simple structure, reliability and the like.

Description

Brass tension mechanism for inner-walls of duct

Technical field

The utility model relates to docking welding technology field, relates in particular to a kind of brass tension mechanism for inner-walls of duct.

Background technology

At present, the docking of pipeline is welded as the port docking welding of two pipes, in general pipeline, the craft port of two pipes needs brass tensioner, because existing brass tension mechanism can not be managed tensioners with butt-welded port two, exist several brass in a plurality of brass of brass tension mechanism can not with two inside pipe wall tensioners, when docking welding, easily cause welding defective goods.

Summary of the invention

In order to overcome the deficiency in background technology, the utility model provides a kind of brass tension mechanism for inner-walls of duct.

In order to realize foregoing invention object, the utility model adopts technical scheme as follows:

A brass tension mechanism for inner-walls of duct, comprising: brass floral disc 1, logical cover 2, brass 3, locking nut 4, bracket 5, brass push rod 6, gas port a7, working chamber a8, guide ring 9, sealing ring 10, gas port b11, working chamber b12; Be evenly distributed on N on same circumference described brass 3 respectively with corresponding through guide ring 9, logically cover 2, brass push rod 6 connections of N cylinder of bracket 5, and be locked by locking nut 4; The center that the other end of the brass push rod 6 of a described N cylinder is circumference, gas port b11 centered by the center of a described N cylinder, the cylinder of brass push rod 6 center-side is working chamber b12, the cylinder of brass push rod 6 brass ends is working chamber a8, the working chamber a8 of the brass push rod 6 of N cylinder, is communicated with gas port a7 by pipeline.

Owing to adopting technical scheme as above, the utlity model has following superiority:

For a brass tension mechanism for inner-walls of duct, N the brass that can guarantee to be evenly distributed on same circumference synchronously propped up tensioner and recovery.When docking welding, avoid causing welding defective goods.There is the advantages such as simple in structure, reliable.

[accompanying drawing explanation]

Fig. 1 is the structural representation of brass tension mechanism;

In figure: 1, brass floral disc; 2, Tong Gai; 3, brass; 4, locking nut; 5, bracket; 6, brass push rod; 7, gas port a; 8, working chamber a; 9, guide ring; 10, sealing ring; 11, gas port b; 12, working chamber b.

[specific embodiment]

As shown in Figure 1, a kind of brass tension mechanism for inner-walls of duct, comprising: brass floral disc 1, logical cover 2, brass 3, locking nut 4, bracket 5, brass push rod 6, gas port a7, working chamber a8, guide ring 9, sealing ring 10, gas port b11, working chamber b12; Be evenly distributed on N on same circumference described brass 3 respectively with corresponding through guide ring 9, logically cover 2, brass push rod 6 connections of N cylinder of bracket 5, and be locked by locking nut 4; The center that the other end of the brass push rod 6 of a described N cylinder is circumference, gas port b11 centered by the center of a described N cylinder, the cylinder of brass push rod 6 center-side is working chamber b12, the cylinder of brass push rod 6 brass ends is working chamber a8, the working chamber a8 of the brass push rod 6 of N cylinder, is communicated with gas port a7 by pipeline.

For the brass tensioner method of inner-walls of duct, adopt N the brass being evenly distributed on same circumference on brass tension mechanism synchronously to prop up and inner-walls of duct tensioner, its step is as follows:

1, the gas port a of brass tension mechanism and gas port b inlet channel and the exhaust passage of two working chambers each other, gas port a is connected with two-position-five-way solenoid valve with gas port b, and is controlled by two-position-five-way solenoid valve;

2, when gas port b air inlet, in the central task chamber b of a described N cylinder, produce pressure, the brass push rod 6 promoting in cylinder moves, make to connect N brass 3 of brass push rod 6, radially outwards move, until brass 3 compresses with inner-walls of duct, realize brass tensioner simultaneously;

3, when gas port a air inlet, in the cylinder working chamber a of described N cylinder brass end, produce pressure, promote brass push rod, make to connect N brass 3 of brass push rod 6, radially move inward, until bracket 6 lower surfaces compress with logical 2 upper surfaces that cover, realize brass and reclaim simultaneously.

The utility model major function is synchronously propped up tensioner and recovery for guaranteeing N the brass being evenly distributed on same circumference.Gas port a and gas port b are the passage of two working chamber air inlets and exhaust, and they control by two-position-five-way solenoid valve.When gas port b air inlet, in working chamber b, produce pressure, promote brass push rod, make the radially outwards motion simultaneously of N brass, until brass and inner-walls of duct compress, realize brass tensioner; When gas port a air inlet, in working chamber a, produce pressure, promote brass push rod, make the radially inwardly motion simultaneously of N brass, until bracket lower surface compresses with the logical surface that covers, realize brass and reclaim.

Claims

1. for a brass tension mechanism for inner-walls of duct, it is characterized in that: comprising: brass floral disc (1), logical lid (2), brass (3), locking nut (4), bracket (5), brass push rod (6), gas port a(7), working chamber a(8), guide ring (9), sealing ring (10), gas port b(11), working chamber b(12); Be evenly distributed on N on same circumference described brass (3) respectively with brass push rod (6) connection of corresponding N the cylinder through guide ring (9), logical lid (2), bracket (5), and be locked by locking nut (4); The center that the other end of the brass push rod (6) of a described N cylinder is circumference, gas port b(11 centered by the center of a described N cylinder), the cylinder of brass push rod (6) center-side is working chamber b(12), the cylinder of brass push rod (6) brass end is working chamber a(8), the working chamber a (8) of the brass push rod (6) of N cylinder, by pipeline and gas port a(7) be communicated with.