CN203081373U

CN203081373U - Replaceable flat milling shoes

Info

Publication number: CN203081373U
Application number: CN 201220728383
Authority: CN
Inventors: 王岩; 刘春友; 张朝
Original assignee: Liaoning Petroleum Machinery Manufacturing Co Ltd
Current assignee: Liaoning Petroleum Machinery Manufacturing Co Ltd
Priority date: 2012-12-26
Filing date: 2012-12-26
Publication date: 2013-07-24
Anticipated expiration: 2022-12-26

Abstract

The utility model relates to a pair of replaceable flat milling shoes. Each milling shoe comprises a milling shoe body and a replaceable milling toe cap. The bottom of each milling shoe body is connected with one end of each replaceable milling toe cap in a screwed mode. A YD alloy layer is welded at the other end of each replaceable milling toe cap and made of YD alloy particles. Compared with the prior art, the pair of replaceable flat milling shoes has the advantages of being low in cost, simple in structure, reasonable in design and high in practicability. After the YD alloy layers are abraded, people only need to replace the replaceable milling toe caps so that resources are effectively prevented from being wasted. Therefore, production cost is reduced, and more economic benefits of an enterprise are created.

Description

A kind of interchangeable flat junk mill

Technical field

The utility model relates to the machine tool field, particularly a kind of interchangeable flat junk mill.

Background technology

Flat junk mill is a kind of downhole tool that is used to handle down-hole accident, milling trouble of lost tool in hole, be mainly used in trouble of lost tool in holes such as milling joint, drilling rod, oil pipe, bit cone, because flat junk mill is the YD alloy that relies on its bottom, with high-abrasive material under the effect of the pressure of the drill, eat into and grind junk, abrasive dust is taken ground out of with circulation well cleanup liquid, so but cause the continuous loss of YD alloy because of grinding junk repeatedly, cause flat junk mill head serious wear, even flat junk mill top is excellent, flat junk mill also can only have been scrapped, and has so just caused the waste of resource.

Summary of the invention

The purpose of this utility model provides a kind of simple in structure, reasonable in design, interchangeable flat junk mill of having reduced the wasting of resources.

For achieving the above object, the utility model is realized by the following technical solutions:

A kind of interchangeable flat junk mill comprises junk mill body and interchangeable junk mill head, and screwed connection is carried out with the first end of interchangeable junk mill in described junk mill body bottom, and the interchangeable junk mill head other end is welded with the YD alloy-layer of being made up of the YD alloying pellet.

Compared with prior art, the beneficial effects of the utility model are:

A kind of interchangeable flat junk mill, have low, simple in structure, reasonable in design, the practical characteristics of cost, after the wearing and tearing of YD alloy-layer, only need interchangeable junk mill head is changed, effectively prevented the waste of resource, reduce cost of production, created higher business economic benefit.

Description of drawings

Fig. 1 is a structure chart of the present utility model;

1-junk mill body 2-interchangeable junk mill head 3-YD alloy-layer

The specific embodiment

Below in conjunction with accompanying drawing the specific embodiment of the present utility model is further specified:

As shown in Figure 1, a kind of interchangeable flat junk mill of the utility model, comprise junk mill body 1 and interchangeable junk mill head 2, described junk mill body 1 bottom and interchangeable junk mill head 2 one ends carry out screwed connection, and interchangeable junk mill head 2 other ends are welded with the YD alloy-layer of being made up of the YD alloying pellet 3.

Use the utility model, when 3 wearing and tearing of YD alloy-layer can not be used, change interchangeable junk mill head 2, so just need not change flat junk mill integral body, prevented the waste of resource.

Above described only be basic principle of the present utility model, be not that the utility model is imposed any restrictions, everyly it is carried out equivalent variations and modification, all within the category of the art of this patent protection scheme according to the utility model.

Claims

1. an interchangeable flat junk mill is characterized in that, comprises junk mill body and interchangeable junk mill head, and screwed connection is carried out with the first end of interchangeable junk mill in described junk mill body bottom, and the interchangeable junk mill head other end is welded with the YD alloy-layer of being made up of the YD alloying pellet.