CN102441571A

CN102441571A - Pin-lift device for tapered roller piercers

Info

Publication number: CN102441571A
Application number: CN2011104158913A
Authority: CN
Inventors: 柏广杰; 杨为国; 徐福昌
Original assignee: YANTAI BAOGANG STEEL PIPE CO Ltd
Current assignee: YANTAI BAOGANG STEEL PIPE CO Ltd; Yantai Baosteel Pipe Co Ltd
Priority date: 2011-12-14
Filing date: 2011-12-14
Publication date: 2012-05-09

Abstract

The invention discloses a pin-lift device for tapered roller piercers. The pin-lift device comprises a pipe body (1) and is characterized in that an inner sleeve (2) is arranged in the pipe body (1), and a water pipe (3) passes through the inner sleeve (2); one end of the water pipe (3) is connected with a hydraulic cylinder by using a flange (4), and the other end of the water pipe (3) is fixedly connected with a push-rod connector (5) through welding; the push-rod connector (5) is connected with a push rod (6); and the water pipe (3) and the push rod (6) carry out push-pull motion in the inner sleeve (2), the head part of the push rod (6) carries out push-pull motion in a connector (7), and the connector (7) is in threaded connection with the pipe body (1). The device disclosed by the invention has the characteristics of rapidly replacing top heads and preventing the failure in top-head replacement.

Description

A kind of cone type piercer pin-lift arrangement

Technical field:

The present invention relates to the cone type piercer technical field, is a kind of cone type piercer pin-lift arrangement specifically, is used for changing fast the cone type piercer top, prevents top replacing inefficacy.

Background technology:

The push rod of cone type piercer in use is prone to take place top replacing Problem of Failure at present, can not realize changing the top smoothly, fast, can't satisfy the demand of quick production, is mainly reflected in the following aspects:

1, push rod encrustation problem: during perforation; Push rod is inserted in the tube chamber of hollow billet, and tube wall is heated, near the temperature higher (80-100 ℃) the push rod lumen wall; Be prone to produce incrustation scale under this temperature; Make the push rod inner chamber diminish, hinder water pipe and push rod, cause the top to change and lost efficacy in the inner smooth and easy push-and-pull of push rod;

2, spring failure: during perforation, push rod tube chamber internal temperature is higher, and spring contraction back and forth for a long time, adds the incrustation scale problem, and spring is easy to follow the string, and causes the top to change and loses efficacy;

3, water pipe connected mode: the connected mode of water pipe adopts and is threaded, and under the push rod high-speed rotating conditions, screw thread takes place easily throw off phenomenon, causes the top to change and loses efficacy.

Summary of the invention:

The objective of the invention is to overcome the deficiency of above-mentioned prior art; And a kind of cone type piercer pin-lift arrangement is provided, the push rod that mainly solves existing cone type piercer is prone to that in use the top takes place and changes the problems such as demand that lost efficacy and can not satisfy quick production.

In order to achieve the above object, the present invention is achieved in that a kind of cone type piercer pin-lift arrangement, and it comprises body; Its special character is in body, to establish interior cover, and water pipe passes interior cover, and water pipe one end adopts flange to be connected with hydraulic cylinder; The water pipe other end is fixedly connected with the welding of push rod connector, and the push rod connector is connected with push rod, the push-and-pull in connector of push rod head; Water pipe and push rod be the push-and-pull campaign in interior cover, and connector is threaded with body.

Compared with present technology a kind of cone type piercer pin-lift arrangement of the present invention has outstanding substantive distinguishing features and marked improvement: 1, add interior cover in push rod inside; Make the push-and-pull in interior cover of water pipe and push rod; Effectively avoided diminishing, and caused water pipe and the push rod can not be in the generation of the inner smooth and easy push-and-pull phenomenon of push rod owing to the incrustation scale reason causes the push rod inner chamber; 2, water pipe is connected the employing welding connecting mode with push rod, effectively prevents to cause the top to change Problem of Failure owing to spring loses elastic force; 3, being connected between water pipe and the ejector rob trolley provided rear portion hydraulic cylinder adopted flange connection, effectively avoids because screw thread breaks off the generation that causes top replacing failure phenomenon; 4, in the perforation procedure, the top has whenever been worn a hollow billet and can have been changed at once, and there are enough cool times the top, increases to come directly towards service life, improves the hollow billet quality simultaneously; 5, in process of production, can not occur having improved rhythm of production because push rod is former thereby cause the top to change the phenomenon of failure effect rhythm of production;

Description of drawings:

Fig. 1 is a structural representation of the present invention.

The specific embodiment:

In order more to separate better and to implement, provide specific embodiment below in conjunction with accompanying drawing and specify the present invention.

Embodiment 1, referring to Fig. 1, according to design demand, selects suitable water pipe 3, and an end and the push rod connector 5 of water pipe 3 is welded to connect, and push rod connector 5 and push rod 6 are fixedly connected through straight pin; Outside water pipe 3, overlap 2 in the suit, water pipe 3 and push rod 6 push-and-pull campaign in interior cover 2; Adopt flange 4 to be connected between the other end of water pipe 3 and the ejector rob trolley provided rear portion hydraulic cylinder, fastening with pad and bolt and nut; Encasement tube body 1 outside interior cover 2, body 1 is threaded with connector 7, and connector 7 has lining 8 and pin 9, the push-and-pull in connector 7 of push rod 6 heads; Push rod 6 promotes forward, and pin 9 falls, and comes directly towards disallowable; Push rod 6 is rollback backward, and pin 9 rises, and the top is locked.

A kind of cone type piercer pin-lift arrangement of the present invention, water pipe one end and push rod link together, and the water pipe other end and ejector rob trolley provided rear portion hydraulic cylinder link together; During work; Hydraulic cylinder drives water pipe and push rod push-and-pull smoothly in interior cover, rejects the top through the promotion forward of push rod, and the rise of push rod rollback control pin comes locking top; Reach the effect of quick replacing top, avoid coming directly towards the generation of changing failure phenomenon simultaneously.

Claims

1. cone type piercer pin-lift arrangement; It comprises body (1), it is characterized in that in body (1), establishing interior cover (2), and water pipe (3) passes interior cover (2); Water pipe (3) one ends adopt flange (4) to be connected with hydraulic cylinder; Water pipe (3) other end is fixedly connected with push rod connector (5) welding, and push rod connector (5) is connected with push rod (6), water pipe (3) and push rod (6) push-and-pull campaign in interior cover (2); The push-and-pull in connector (7) of push rod (6) head, connector (7) is threaded with body (1).