Coaxial large strided distance ear base hole boring auxiliary device and boring process method

An auxiliary device and large-span technology, applied in metal processing equipment, manufacturing tools, boring/drilling, etc., can solve the problems of large assembly workload, low work efficiency, large fit clearance, etc., and achieve high assembly accuracy, Improve the efficiency of installation work and the effect of small fit clearance

Inactive Publication Date: 2008-06-11
RG PETRO MACHINERY GROUP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This production method has many shortcomings such as large assembly workload, low precision, large fit clearance, easy vibration of the product during use, and low work efficiency.

Method used

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  • Coaxial large strided distance ear base hole boring auxiliary device and boring process method
  • Coaxial large strided distance ear base hole boring auxiliary device and boring process method

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Embodiment Construction

[0019] The present invention will be further described below by taking the machining of the coaxial large-span lug hole boring pin on the base of the heavy-duty skid-mounted drilling rig as an example, in conjunction with the accompanying drawings.

[0020] Figure 1 and Figure 2 are schematic diagrams of the foundation seat structure of the heavy-duty skid-mounted drilling rig. The foundation seat is about 13 meters long and 2.2 meters wide. There are several groups of ear seats on it, which are used to connect the ear seats and ear plates between the derrick and the drilling floor , in order to ensure that the derrick and the drill floor can be freely rotated and lifted relative to the foundation base, there is a high coaxiality requirement between a set of coaxial lug holes, and there is a center distance between the centerlines of each set of lug holes with parallel axes Size requirements and parallelism requirements. The following takes the boring pin processing of a group...

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Abstract

The invention relates to an auxiliary device for borings of coaxial large span length ear base holes and a method for manufacturing the borings. The auxiliary device comprises an extending knife bar, a transitional supporting sleeve and a support, wherein the transitional supporting sleeve is inserted in an ear base hole which is manufactured through a common short knife bar and near a constructional element of the end surface of a machine tool main axle, a support supporting sleeve is inserted in a round hole on the support, and the extending knife bar is passed respectively through the transitional supporting sleeve and the support supporting sleeve and supported in auxiliary by the transitional supporting sleeve and the support supporting sleeve. The method for manufacturing the borings adopts the auxiliary device to manufacture the coaxial long center ear base holes on a large scale boring and milling machine. The coaxiality of coaxial ear base holes and center distance and the depth of parallelism between central lines of different axis ear base holes can be guaranteed, a derrick and a drill floor are connected on a basal seat after adopting the method to manufacture the borings of coaxial long center ear-seat holes on large scale structural elements as a driller, which has high assembly preciseness, little cooperating gap, and is stable while in use, installing working amount can be decreased greatly, and installing working efficiency can be increased.

Description

technical field [0001] The invention relates to mechanical processing technology, in particular to an auxiliary tool for boring coaxial lug holes with high requirements on coaxiality and large span on the base of large structural parts such as heavy and super heavy skid-mounted oil drilling rigs. A device and a method for boring a coaxial trunnion hole. Background technique [0002] The base is an important part of the petroleum skid-mounted drilling rig, including the foundation base and the drill floor, which are used to install various functional components of the skid-mounted drilling rig. The base base is used as the basic component of the drilling rig. The seat is connected by the ear seat and the ear plate. When the drill floor and derrick are installed, they must be freely rotated and lifted relative to the foundation base. Therefore, there is a coaxiality requirement between the lug holes on the foundation base that work together on the same axis. The corresponding...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B41/00B23B35/00
Inventor 王宏志陈小伟张勇刘俭王文尔余德方刘永勤
Owner RG PETRO MACHINERY GROUP
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