CN104500033A - Inner-diameter groove measuring tool - Google Patents
Inner-diameter groove measuring tool Download PDFInfo
- Publication number
- CN104500033A CN104500033A CN201410796152.7A CN201410796152A CN104500033A CN 104500033 A CN104500033 A CN 104500033A CN 201410796152 A CN201410796152 A CN 201410796152A CN 104500033 A CN104500033 A CN 104500033A
- Authority
- CN
- China
- Prior art keywords
- push rod
- thimble
- differential head
- slide block
- operating parts
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length-Measuring Instruments Using Mechanical Means (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention relates to the technical field of drilling tools, in particular to an inner-diameter groove measuring tool comprising a body, a micrometer head, an operating element, an ejector pin and sliders. The micrometer head is fixed on the operating element, a measuring rod of the micrometer head goes deep into the operating element, the operating element is inserted into the body and is in slide fit with the body, and the operating element is fixed to the body through a positioning screw; an ejector rod is arranged in the body and sleeved with a spring, the upper end of the ejector rod is matched with the measuring rod of the micrometer head, the ejector pin is matched with the sliders arranged at the bottom of the body, and the sliders are connected through a tension spring. Internal grooves of cone holes are tested by the measuring tool, the sliders are arranged around the ejector pin, stroke of the sliders are transferred to the ejector pin which then transfers the stroke to the micrometer head through the ejector rod, and whether a product is qualified or not is judged quickly and conveniently by observing whether a numerical value is within an allowable error range or not.
Description
Technical field
The present invention relates to drilling tool technical field, particularly relate to a kind of internal diameter groove and measure measurer.
Background technology
The rock bit great majority used in oil, gas drilling and other mining drill spies are seal form.Sealed roller cone drill bit is formed primarily of bit leg, bit leg axle, gear wheel, gear wheel hole, locking element and seal.The key factor affecting the application life of rock bit in oil, gas drilling is life-span of bearing arrangement and bearing life and sealing life.By dissect and analyze rock bit failure mode we find that sealing life is again the most direct restraining factors in its rock bit life-span.Along with the development of rock bit technology has produced double containment rock bit, the ability that this kind of drill bit adapts to high rotating speed high temperature is strong.Double containment rock bit has two seals circle than list sealing rock bit in the past, and outer sealing ring is sand retaining ring, and inner sealing ring is primary seal circle, sand retaining ring protection primary seal circle, primary seal circle protection bearing.Double containment rock bit improves the application life of rock bit.Along with double containment rock bit use we find to improve the key that life-span of sand retaining ring is again double containment drill bit.Because it is faster that the faster mud that sand retaining ring damages and landwaste contact primary seal, primary seal circle is shorter for service time, and final bit life is shorter.For rock bit, the quality of its bearing seal and lubrication directly affects the life-span of rock bit.
The rock bit that oil drilling and other mining drill spy aspect use, as gear wheel and the bit leg axle lock shaft steel ball to position location, the runway of its similar common rolling bearing of runway, gear wheel hole and bit leg axle respectively have a semicircular groove of annular, the accuracy of the axial location of its door is an important parameter of cone bit bearing part, its levels of precision, be directly connected to the sealing effectiveness of cone bit bearing, should be the axial location apart from thrust surface strictly speaking, which determine thrust surface whether can be adjacent to, and there is the roller axle meeting performance requirement to collecting together momentum.The sealing effectiveness of bearing plays conclusive effect the service time to bearing.Sealing effectiveness is not good or lost efficacy, and the impurity such as Transport of Drilling Cutting In A immerse bearing bore, and bearing very quick-wearing, rock bit is scrapped, and even occurs down-hole accident.The measurement instrument of current routine, accurately can not measure the axial location of gear wheel hole internal diameter groove, in industry, and need with a kind of measurement instrument solving this problem.
Summary of the invention
The object of the invention is to the deficiency overcoming above-mentioned technology, and provide a kind of internal diameter groove to measure measurer, pinch roller groove can be tested, improve the qualification rate of product.
The present invention for achieving the above object, by the following technical solutions: a kind of internal diameter groove measures measurer, comprise main body, differential head, operating parts, thimble and slide block, described differential head is fixed on described operating parts, the measuring stick of described differential head is deep into described operating parts inside, described operating parts to be inserted in described main body and to be slidably matched with it, and operating parts and described main body are fixed by set screw; Push rod is provided with in described main body, on described push rod, cover has spring, and the upper end of described push rod coordinates with the measuring stick of described differential head, and lower end and the described thimble of described push rod are affixed, described thimble coordinates with the described slide block being arranged on described bottom part body, is linked together between described slide block by extension spring.The present invention is simple and practical, can be tested to the internal channel in gear wheel hole by the present invention, slide block is around thimble, it is all wedge shape, the stroke of slide block passes to thimble, thimble is sending differential head to by push rod, whether can judge that whether product is qualified, rapid and convenient in the error range allowed by observing numerical value.First this device is corrected before use, after this device being measured by each a product, correct the numerical value of differential head, zero degree can be transferred to, re-use this device when other workpiece are measured, only need to judge measuring workpieces whether about zero degree, simple and practical.
Preferably, steel ball is provided with between the measuring stick of described differential head and described push rod.Steel ball is equivalent to the effect of universal joint, and the measuring stick of push rod and differential head is divided into two parts, though the two not on an axis time also can measure accurately.
Preferably, described slide block is at least three pieces, is distributed in the ring week of described thimble.The ring week of gear wheel endoporus can be withstood on so uniformly, improve measurement precision.
The invention has the beneficial effects as follows: the present invention is simple and practical, can be tested to the internal channel in gear wheel hole by the present invention, slide block is around thimble, it is all wedge shape, the stroke of slide block passes to thimble, thimble is sending differential head to by push rod, whether can judge that whether product is qualified, rapid and convenient in the error range allowed by observing numerical value.First this device is corrected before use, after this device being measured by each a product, correct the numerical value of differential head, zero degree can be transferred to, re-use this device when other workpiece are measured, only need to judge measuring workpieces whether about zero degree, simple and practical.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Detailed description of the invention
The specific embodiment of the present invention is described in detail below in conjunction with accompanying drawing and preferred embodiment.As shown in Figure 1: a kind of internal diameter groove measures measurer, comprise main body 1, differential head 2, operating parts 3, thimble 4 and slide block 5, described differential head is fixed on described operating parts, can pressing down fast of this operating parts, play the effect of coarse adjustment, object is to improve testing efficiency.The measuring stick of described differential head is deep into described operating parts inside, described operating parts to be inserted in described main body and to be slidably matched with it, and operating parts and described main body are fixed, during detection by set screw 6, first operating parts is pressed down rear fastened by screw, then regulate differential head.Be provided with push rod 7 in described main body, on described push rod, cover has spring 8, the pressure that spring gives push rod one downward all the time.The upper end of described push rod coordinates with the measuring stick 9 of described differential head, and lower end and the described thimble of described push rod are affixed, and described thimble coordinates with the described slide block being arranged on described bottom part body, is linked together between described slide block by extension spring 10.The present invention is simple and practical, can be tested to the internal channel in gear wheel hole by the present invention, slide block is around thimble, it is all wedge shape, the stroke of slide block passes to thimble, thimble is sending differential head to by push rod, whether can judge that whether product is qualified, rapid and convenient in the error range allowed by observing numerical value.First correct this device before use, be first placed on by this device on corrective gauge 12, size and the gear wheel to be measured of corrective gauge are measure-alike, are equivalent to mark part.After again this device being measured each a product, correct the numerical value of differential head, can zero degree be transferred to, re-use this device when other workpiece are measured, only need to judge measuring workpieces whether about zero degree, simple and practical.
If measuring stick is direct and push rod is fixed, easily causes measuring stick to rock during measurement, and then affect certainty of measurement, between the measuring stick of described differential head and described push rod, be provided with steel ball 11.Steel ball is equivalent to the effect of universal joint, and the measuring stick of push rod and differential head is divided into two parts, though the two not on an axis time also can measure accurately.
Described slide block is at least three pieces, is distributed in the ring week of described thimble.The ring week of gear wheel endoporus can be withstood on so uniformly, improve measurement precision.
The present invention is simple and practical, can be tested to the internal channel in gear wheel hole by the present invention, slide block is around thimble, it is all wedge shape, the stroke of slide block passes to thimble, thimble is sending differential head to by push rod, whether can judge that whether product is qualified, rapid and convenient in the error range allowed by observing numerical value.First this device is corrected before use, after this device being measured by each a product, correct the numerical value of differential head, zero degree can be transferred to, re-use this device when other workpiece are measured, only need to judge measuring workpieces whether about zero degree, simple and practical.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (3)
1. an internal diameter groove measures measurer, it is characterized in that: comprise main body, differential head, operating parts, thimble and slide block, described differential head is fixed on described operating parts, the measuring stick of described differential head is deep into described operating parts inside, described operating parts to be inserted in described main body and to be slidably matched with it, and operating parts and described main body are fixed by set screw; Push rod is provided with in described main body, on described push rod, cover has spring, and the upper end of described push rod coordinates with the measuring stick of described differential head, and lower end and the described thimble of described push rod are affixed, described thimble coordinates with the described slide block being arranged on described bottom part body, is linked together between described slide block by extension spring.
2. internal diameter groove according to claim 1 measures measurer, it is characterized in that: be provided with steel ball between the measuring stick of described differential head and described push rod.
3. internal diameter groove according to claim 1 and 2 measures measurer, it is characterized in that: described slide block is at least three pieces, is distributed in the ring week of described thimble.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410796152.7A CN104500033A (en) | 2014-12-18 | 2014-12-18 | Inner-diameter groove measuring tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410796152.7A CN104500033A (en) | 2014-12-18 | 2014-12-18 | Inner-diameter groove measuring tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104500033A true CN104500033A (en) | 2015-04-08 |
Family
ID=52941472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410796152.7A Pending CN104500033A (en) | 2014-12-18 | 2014-12-18 | Inner-diameter groove measuring tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104500033A (en) |
-
2014
- 2014-12-18 CN CN201410796152.7A patent/CN104500033A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150408 |
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| WD01 | Invention patent application deemed withdrawn after publication |