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

A large-span, lug seat technology, which is applied in metal processing equipment, manufacturing tools, boring/drilling, etc., can solve the problems of large assembly workload, large fit clearance, and low work efficiency, and achieve high assembly accuracy, The effect of small fit clearance and improved installation work efficiency

Inactive Publication Date: 2009-10-21
RG PETRO MACHINERY GROUP
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  • Abstract
  • Description
  • Claims
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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
  • Coaxial large strided distance ear base hole boring auxiliary device and boring process method

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Embodiment Construction

[0018] 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.

[0019] figure 1 , figure 2 It is a structural diagram of the foundation seat of a heavy-duty skid-mounted drilling rig. The foundation seat is about 13 meters long and 2.2 meters wide. The drill floor is free to rotate and lift with respect to the base. There is a high coaxiality requirement between a set of coaxial lug holes, and there are requirements for center distance and parallelism between the centerlines of each set of lug holes with parallel axes. Require. The following takes the boring pin processing of a group of lug holes 1a, 1b, 1c, and 1d coaxial on the left side as an example to illustrate the structure of the auxiliary device of the present invention and the application of this auxiliary device for coaxial large...

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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 a method for boring lug holes on large structural parts such as heavy and super heavy skid-mounted oil drilling rig bases with high coaxiality requirements and large spans. 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 lug holes on the foundation base that are not axial There are center distance dimen...

Claims

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Application Information

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Patent Type & Authority Patents(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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