CN201463786U - Axial position measuring instrument for R groove of bit leg shaft of oil roller bit - Google Patents
Axial position measuring instrument for R groove of bit leg shaft of oil roller bit Download PDFInfo
- Publication number
- CN201463786U CN201463786U CN2009200982226U CN200920098222U CN201463786U CN 201463786 U CN201463786 U CN 201463786U CN 2009200982226 U CN2009200982226 U CN 2009200982226U CN 200920098222 U CN200920098222 U CN 200920098222U CN 201463786 U CN201463786 U CN 201463786U
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- groove
- detecting head
- matrix
- bit
- base body
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Abstract
The utility model relates to an axial position measuring instrument for a R groove of a bit leg shaft of an oil roller bit, which comprises three detecting heads, a locking disc and a dial gauge, wherein three holes mutually forming a 120-degree angle in the same radial position are arranged on a base body; grooves are arranged on the detecting heads; planar spiral bars are arranged on the locking disc; a handle is arranged on the base body; the base body can rotate relative to the locking disc through the handle; driven by the plane spiral bars, the three detecting heads can move inward so that the three detecting heads protrude inward of the base body; the dial gauge is clamped on the rotating arm through a split sleeve and a fixing screw; the other end of the rotating arm is in shaft fit with the rotating arm through a copper sleeve, so that the rotating arm can rotate freely around the shaft of the rotating arm; and steel balls, the base body and the locking disc form a bearing. The instrument of the utility model improves the qualification rate of parts, simplifies the assembly technology, can measure the height of a small shaft of the bit leg shaft simultaneously, achieves the purpose of obtaining the geometric dimensions of multiple sites by measuring once, thereby simplifying the testing procedures of the parts.
Description
Technical field
The utility model relates to oil cone bit palm axis R-groove axial position measuring instrumentation, particularly a kind of oil cone bit palm axis R-groove axial position measuring instrument.
Background technology
The tooth-wheel bit that petroleum drilling and other mining drill spy aspect are used, be used as gear wheel and bit leg shaft lock dead axle steel ball to the position location, the runway of its similar common rolling bearing of runway, be commonly referred to as the R groove, the degree of accuracy of its axial location is an important technology parameter of cone bit bearing part, its levels of precision, be directly connected to the sealing effectiveness of cone bit bearing, should be axial location strictly speaking apart from thrust surface, it has determined whether thrust surface can be adjacent to, and the bearing pin that meets performance requirement is arranged to collecting together momentum.The sealing effectiveness of bearing is to playing conclusive effect the service time of bearing.The not good or inefficacy of sealing effectiveness, impurity such as drilling fluid cutting carring immerse bearing bore, and bearing is quick-wearing very, and tooth-wheel bit is scrapped, even down-hole accident occurs.At present conventional measurement instrument can not accurately be measured the axial location of palm axis R groove, in industry, needs with a kind of measurement instrument that addresses this problem.
Summary of the invention
The purpose of this utility model is exactly in order to solve above-mentioned existing issue, and provide a kind of oil cone bit palm axis R-groove axial position measuring instrument, this surveying instrument can accurately be measured the axial location of cone bit palm axis R groove, can improve the quality and the performance of tooth-wheel bit, prolong its serviceable life.
In order to achieve the above object, the technical solution of the utility model is: the oil cone bit palm axis R-groove axial position measuring instrument, comprise the detecting head body, locking plate and dial gauge, it is characterized in that: matrix is provided with three holes that are mutually hexagonal angle in same radial position, on the described detecting head body groove is arranged, the snail muscle is arranged on the locking plate, matrix is provided with handle, can make by handle that matrix is relative with locking plate to be rotated, under the drive of snail muscle, three detecting head bodies can move inward, make three detecting heads inwardly protrude from matrix, dial gauge is clamped on the pivot arm by split collar and gib screw, and the other end of pivot arm cooperates with the rotation arm axle by copper sheathing, pivot arm can be rotated arbitrarily around the rotation arm axle, and steel ball and matrix and locking plate form bearing.
Above-mentioned three holes cooperate the detecting head body to make square hole or cylindrical hole.
Above-mentioned three detecting head bodies are three formations that are mutually hexagonal angle, itself and the slideway mating part side's of being body or right cylinder, and the detecting head that contacts with the palm axis R groove is prismatoid or cone.
The beneficial effects of the utility model are: the axial location that 1, can accurately measure the palm axis R groove, measure simple, reading is directly perceived, accurately, effectively controlled gear wheel and on the bit leg axle, axially collected together momentum, provide technique guarantee to the production of high-quality performance tooth-wheel bit; Also can measure the height of the little axle of bit leg axle simultaneously, realize that one-shot measurement obtains multi-section position physical dimension, simplify the check program to part, the machining precision of other parts is very little or not influence to the measurement result influence.
Description of drawings
Structural drawing when Fig. 1 measures the bit leg axle for the utility model.
Fig. 2 is the mated condition structural drawing of the utility model detecting head body and locking plate.
Embodiment
1 is the matrix of structure among the figure, and 2 is locking plate, and 3 are the rotation arm axle, and 4 is pivot arm, and 5 is copper sheathing, 6 is steel ball, and 7 is the detecting head body, and 8 is adjusting pad, and 9 is plain cushion, and 10 is nut, 11,12 is handle, and 13 is split collar, and 14 is gib screw, and 15 is dial gauge, and 16 is tested part bit leg axle.
Principle of work of the present invention is: promote detecting head to projecting inward by the rotation of the flat thread in the mechanical hook-up, the palm axis R groove (16) of locking tooth-wheel bit, measure the bit leg axial end with dial gauge (15), compare, calculate the axial location exact value of palm axis R groove (16) with reference field.Dial gauge (15) is fixed on the pivot arm (4) that can rotate arbitrarily, it is axially collected together momentum be adjusted into 0, arbitrarily the optional position of measuring basis face and tested part end face.
Embodiment: on matrix (1), be provided with three holes that in same radial position, are mutually hexagonal angle, cooperate detecting head body (7) to make square hole or cylindrical hole.Groove (17) is arranged on the detecting head body (7), the groove (17) of three detecting head bodies (7) cooperates with snail muscle (18) on the locking plate (2), make the relative rotation of matrix (1) by handle (11), (12) with locking plate (2), under snail muscle (18) drives, promoting three detecting head bodies (7) moves inward, make three detecting heads (19) inwardly protrude from matrix (1), be locked in the R groove of tested bit leg axle (16).Dial gauge (15) is clamped on the pivot arm (4) by split collar (13) and gib screw (14), and the other end of pivot arm (4) cooperates with rotation arm axle (3) by copper sheathing (12), and pivot arm (4) can be rotated arbitrarily around rotation arm axle (3).
The last plane of matrix (1) is a reference field, with the measured size reading of dial gauge (15) and the read-around ratio that reference field is measured, calculates the axial location size exact value of R groove.Pivot arm (4) can not have on rotation arm axle (3) axially collects together momentum, otherwise survey measurements is inaccurate.Adjust the thickness of adjusting pad (8), after nut (10) locking, making the momentum of axially collecting together of pivot arm is 0, but can not be locked, and pivot arm (4) can be free to rotate to any part that needs measurement.
The length size of pivot arm (4) should be in its rotary course, can reach all should sites measured, otherwise also need to increase mechanism, the length of adjusting pivot arm reaches the purpose of measurement, like that not only make the instrument manufacturing become complicated, need during use often to adjust, and measuring accuracy also is under some influence.
The last reference field of matrix (1) apart from the distance at detecting head (19) center should with being consistent of tested part thrust surface and R groove apart from nominal value, the reading as a result of measurement is more directly perceived.The pivot arm design time should consider to make dial gauge (15) to detect the little axial end of bit leg, can measure the length size of little axle in passing, reliable reading not only, and simplified check program to part.
Three snail muscle (18) on the locking plate (2) are the three head plane screw threads that are mutually hexagonal angle, the pitch of flat thread will be decided on the depth of tested part R groove, in other words, the pitch of flat thread has determined the scope of activities of detecting head, and spiral bar selected diameter range section on flat thread has determined the diameter of tested part.Locking plate can only rotate in the scope less than hexagonal angle, makes it drive detecting head body (2) this scope planted agent and can lock the R groove, can return back to again in the matrix (1).
Steel ball (6) cooperates with matrix (1) and locking plate (2), forms bearing.When matrix (1) during with relative rotation of locking plate (2), not only can support mutually, and can axial location, whole instrument is become one.
The above only executes example for one of the present utility model, is not to limit protection domain of the present utility model.
Claims (3)
1. oil cone bit palm axis R-groove axial position measuring instrument, comprise the detecting head body, locking plate and dial gauge, it is characterized in that: matrix is provided with three holes that are mutually hexagonal angle in same radial position, on the described detecting head body groove is arranged, the snail muscle is arranged on the locking plate, matrix is provided with handle, can make by handle that matrix is relative with locking plate to be rotated, under the drive of snail muscle, three detecting head bodies can move inward, make three detecting heads inwardly protrude from matrix, dial gauge is clamped on the pivot arm by split collar and gib screw, the other end of pivot arm cooperates with the rotation arm axle by copper sheathing, and pivot arm can be rotated arbitrarily around the rotation arm axle, and steel ball and matrix and locking plate form bearing.
2. oil cone bit palm axis R-groove axial position measuring instrument according to claim 1 is characterized in that: described three holes cooperate the detecting head body to make square hole or cylindrical hole.
3. oil cone bit palm axis R-groove axial position measuring instrument according to claim 1, it is characterized in that: described three detecting head bodies are three formations that are mutually hexagonal angle, itself and the slideway mating part side's of being body or right cylinder, the detecting head that contacts with the palm axis R groove is prismatoid or cone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200982226U CN201463786U (en) | 2009-08-05 | 2009-08-05 | Axial position measuring instrument for R groove of bit leg shaft of oil roller bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200982226U CN201463786U (en) | 2009-08-05 | 2009-08-05 | Axial position measuring instrument for R groove of bit leg shaft of oil roller bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201463786U true CN201463786U (en) | 2010-05-12 |
Family
ID=42391137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200982226U Expired - Fee Related CN201463786U (en) | 2009-08-05 | 2009-08-05 | Axial position measuring instrument for R groove of bit leg shaft of oil roller bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201463786U (en) |
-
2009
- 2009-08-05 CN CN2009200982226U patent/CN201463786U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100512 Termination date: 20140805 |
|
| EXPY | Termination of patent right or utility model |