CN205349238U - Improve measurement accuracy's bit gauge - Google Patents

Abstract

The utility model discloses an improve measurement accuracy's bit gauge, including shell, inner plate, handle to and set up in regulation pole, the size strip of shell upper surface, fixed surface is connected with the three of uniform annular or four telescopic links under the shell, the shell upper surface still is provided with the spirit level. An object of the utility model is to provide an improve measurement accuracy's bit gauge when using the bit gauge to measure among the solution prior art, needs the manpower to grip, be difficult to to ensure its horizontally problem, realizes improving bit gauge measurement accuracy's purpose.

Description

A kind of bit gauge improving certainty of measurement

Technical field

This utility model relates to bit gauge field, concretely relates to a kind of bit gauge improving certainty of measurement.

Background technology

Bit gauge, it is for measuring the common tool of the gauge size of the wear-out part such as drill bit, centralizer in oil and gas well drilling industry, it can measure the maximum gauge of the drill bit before and after well, centralizer, contrast draws drill bit and the centralizer abrasion condition in down-hole, judges whether that changing BHA provides data support for drilling engineer.Use in bit gauge measurement process, it is inserted in the gauge place being in upright or the drill bit to be measured of suspended state, centralizer, bit gauge is held level with both hands with hands, stir adjusting rod clockwise, making bit gauge internal sheet inwardly produce until being adjacent to place to be measured, now namely the size of the pointer indication of adjusting rod is measured external diameter.

Bit gauge needs user to maintain it in level in measurement process, otherwise measured outside dimension can have the error outside zone of reasonableness, affect engineer to instrument, stratum, borehole size judgement, even result in the engineering accident such as bit freezing, card sleeve pipe, therefore whether bit gauge measurement process is in level particularly significant.But, existing bit gauge only relies on user when using to estimate whether level, its certainty of measurement limited；And existing bit gauge is all made up of stainless steel alloy material, its heavier mass, one hands of user needs to stir adjusting rod, can only be hold by one hand by another hands, easily causes measurement error because of gripping unstable especially.

Utility model content

The purpose of this utility model is in that to provide a kind of bit gauge improving certainty of measurement, when solving to use bit gauge to measure in prior art, it is necessary to the problem that manpower grips, is difficult to ensure that its level, it is achieved improve the purpose of bit gauge certainty of measurement.

This utility model is achieved through the following technical solutions:

A kind of bit gauge improving certainty of measurement, including shell, internal sheet, handle, and it being arranged at the adjusting rod of upper surface of outer cover, size bar, described shell lower surface is fixedly connected with three or four expansion links that annular is uniform, and described upper surface of outer cover is additionally provided with level indicator.Manual hold is needed when measuring for existing bit gauge, it is difficult to ensure that its level, the problem affecting certainty of measurement, the utility model proposes a kind of bit gauge improving certainty of measurement, by being fixedly connected with, at shell lower surface, three or four expansion links that annular is uniform, expansion link is positioned on ground, as supporting leg, three or four expansion links then guarantee that bit gauge is steadily placed, avoid and use manpower to grip the situation gripping shakiness that bit gauge is likely to occur, again through at bit gauge upper surface, level indicator is set, level indicator is utilized directly perceived, judge whether bit gauge is in level accurately, thus realizing improving the purpose of bit gauge certainty of measurement.In this utility model use procedure, first described adjusting rod is rotated counterclockwise, described internal sheet is gone in shell, latus rectum in the middle of bit gauge is made to be in maximum rating, it is positioned over by the support of expansion link again on ground or other even curfaces, the drill bit to be measured of upright or suspended state is put into from the latus rectum in the middle of bit gauge or kept unsettled and slings, its maximum gauge place is made to be positioned at plane residing for internal sheet, now observe described level indicator, and adjust the height of each expansion link with the foundation that is shown as of level indicator, until level indicator shows to level, now stir adjusting rod clockwise, bit gauge internal sheet is made to produce until being adjacent to place to be measured, now namely the size of the pointer indication of adjusting rod is measured external diameter.It should be noted that the more expansion link of usage quantity also can realize the purpose of this utility model, simply expansion link quantity is too much wasted material and adjusts very complicated more, and namely the expansion link of three or four can guarantee that the stable support to bit gauge.

Preferably, described level indicator is arranged near described size bar.Described level indicator is arranged near size bar, it is simple to user remains able to when reading size scale use remaining light that level indicator is observed, it is ensured that the numerical value of reading is to obtain under bit gauge level, further ensures that the precision of measurement.

Preferably, described three or four expansion links are electric pushrod.The motor that electric pushrod is common drives expansion link, eliminate manpower and control the work that expansion link is flexible, described three or four electric pushrods are respectively by respective motor and control switch and be controlled, can according to the display of level indicator flexibly, easily to needing the electric pushrod length adjusted regulate and control, alleviate manual work, easy to use.

Preferably, described level indicator is air-bubble level.Conveniently, user only needs to observe whether bubble is in the horizontal center point of transparent plate, and the position according to bubble is adjusted, and namely can ensure that bit gauge is in level, it is ensured that certainty of measurement for air-bubble level simple in construction, observation.

To sum up, this utility model has the advantages that

1, a kind of bit gauge improving certainty of measurement of this utility model, by being fixedly connected with, at shell lower surface, three or four expansion links that annular is uniform, expansion link is positioned on ground, as supporting leg, three or four then guarantee that drill bit is dry and steadily place, it is to avoid using manpower to grip, bit gauge is likely to occur grips unstable situation；

2, a kind of bit gauge improving certainty of measurement of this utility model, by arranging level indicator at bit gauge upper surface, level indicator is utilized to come intuitively, judge whether bit gauge is in level accurately, and be adjusted by expansion link, make level indicator show and be in level, carry out the measurement of outside diameter again, thus realizing improving the purpose of bit gauge certainty of measurement.

Accompanying drawing explanation

Fig. 1 is the structural representation of one specific embodiment of this utility model；

Fig. 2 is the top view of one specific embodiment of this utility model；

Fig. 3 is the close-up schematic view at A place in Fig. 2.

Numbering in figure is followed successively by: 1-shell, 2-internal sheet, 3-handle, 4-adjusting rod, 5-expansion link, 6-level indicator.

Detailed description of the invention

For making the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, exemplary embodiment of the present utility model and explanation thereof are only used for explaining this utility model, are not intended as restriction of the present utility model.

Embodiment 1:

A kind of bit gauge improving certainty of measurement as shown in Figure 1 to Figure 3, including shell 1, internal sheet 2, handle 3, and it is arranged at the adjusting rod 4 of shell 1 upper surface, size bar, described shell 1 lower surface is fixedly connected with three expansion links 5 that annular is uniform, and described shell 1 upper surface is additionally provided with level indicator 6；Described level indicator 6 is arranged near described size bar；Described level indicator 6 is air-bubble level；Described three expansion links 5 are electric pushrod.In this utility model use procedure, first described adjusting rod 4 is rotated counterclockwise, described internal sheet 2 is gone in shell 1, latus rectum in the middle of bit gauge is made to be in maximum rating, it is positioned over by the support of expansion link 5 again on ground or other even curfaces, the drill bit to be measured of upright or suspended state is put into from the latus rectum in the middle of bit gauge or kept unsettled and slings, its maximum gauge place is made to be positioned at plane residing for internal sheet 2, now observe described level indicator 6, and adjust the height of each expansion link 5 with the foundation that is shown as of level indicator 6, until level indicator 6 shows to level, now stir adjusting rod 4 clockwise, bit gauge internal sheet 2 is made to produce until being adjacent to place to be measured, now namely the size of the pointer indication of adjusting rod 4 is measured external diameter.Three electric pushrods in the present embodiment, respectively by respective motor and control switch and carry out independent control, it is thus possible to the display according to level indicator 6, flexibly, easily to needing the electric pushrod length adjusted to regulate and control, alleviate manual work, easy to use.

Above-described detailed description of the invention; the purpose of this utility model, technical scheme and beneficial effect have been further described; it is it should be understood that; the foregoing is only detailed description of the invention of the present utility model; it is not used to limit protection domain of the present utility model; all within spirit of the present utility model and principle, any amendment of making, equivalent replacement, improvement etc., should be included within protection domain of the present utility model.

Claims (4)

1. the bit gauge improving certainty of measurement, including shell (1), internal sheet (2), handle (3), and it is arranged at the adjusting rod (4) of shell (1) upper surface, size bar, it is characterized in that: described shell (1) lower surface is fixedly connected with three or four expansion links (5) that annular is uniform, and described shell (1) upper surface is additionally provided with level indicator (6).

2. a kind of bit gauge improving certainty of measurement according to claim 1, it is characterised in that: described level indicator (6) is arranged near described size bar.

3. a kind of bit gauge improving certainty of measurement according to claim 1 and 2, it is characterised in that: described three or four expansion links (5) are electric pushrod.

4. a kind of bit gauge improving certainty of measurement according to claim 1 and 2, it is characterised in that: described level indicator (6) is air-bubble level.