CN201003938Y

CN201003938Y - Complete and integrated sealing diameter gauge and screw thread middle diameter target gauge

Info

Publication number: CN201003938Y
Application number: CNU200720095000XU
Authority: CN
Inventors: 孙一清; 徐志谦; 王春河; 张军; 马亭彦; 屈强
Original assignee: Tianjin Pipe Group Corp
Current assignee: Tianjin Pipe Group Corp
Priority date: 2007-01-19
Filing date: 2007-01-19
Publication date: 2008-01-09
Anticipated expiration: 2017-01-19

Abstract

The utility model provides a standardizing compasses which completely integrate a sealed bore gauge and screw thread mean diameter compasses; the standardizing compasses is a complex formed by a lubricous cylinder as well as a cone and the complex consists of two segments, one segment is a lubricous cylinder segment and the other segment is a lubricous cone; the cylinder is provided with an axial benchmark plane which is used for sealing the diameter and the outer surface of the diameter of the cylinder is standardizing basic parameter; the mean diameter compasses axial benchmark plane of the cone segment shares the same basal plane with the standardizing benchmark plane of the cylinder segment. Also the cone is provided with a circular bead surface, and the section of circular bead surface is a screw standardizing basic parameter; and the cone segment is provided with a mean diameter compasses screw axial mean diameter standardizing basis; and the cone segment is also the standardizing basis of tapered. The utility model has the advantage that the standardizing compasses with the structure make the inspectors operate much more accurate and convenient and faster and therefore are suitable for the need of a large scale production. The complex of the standardizing compasses is cone ring shaped, which is beneficial to reduce the weight of the standardizing compasses and to alleviate the working strength of the inspectors.

Description

Complete type integrated form sealing bore gauge, gauge for thread pitch diameter are demarcated rule

Technical field

The utility model relates to the external diameter to various nonstandard specifications, the demarcation rule that the gauge for thread pitch diameter design size is demarcated, be mainly used in the demarcation of outside gauge, gauge for thread pitch diameter or other measurer reference dimension, be specially adapted to that petroleum casing pipe, oil pipe have the arbitrary section diameter of taper thread or complete type integrated form sealing bore gauge, gauge for thread pitch diameter that two above design sizes are demarcated are demarcated rule.

Background technology

Along with the day of petroleum-based energy is becoming tight, the difficulty of oil, natural gas energy resource exploitation is increasing, and is also more and more higher to the oil country tubular goods performance demands.Therefore, to special button petroleum casing pipe, the special retaining ring pipe of especially nonstandard specifications and models, the demand of oil pipe are also in continuous increase.Because the geological state difference in various oil fields, the specifications and models of needed tubing are also different, or even, different wall thickness can be arranged with a kind of external diameter of specification.Because wall thickness difference, middle footpath are also different; This just gives to detect and detect to demarcate and results in hand cramps.Traditional special button petroleum casing pipe generally is to be threaded and adds hermetically-sealed construction, for switching performance and the sealing property that guarantees screw thread, the parameters of double thread, sealing, all stipulated higher, than strict tolerances, therefore when detecting the pitch diameter of thread and sealed diameter, adopt mostly to compare and measure mode.

The comparative measurement method measuring accuracy is higher, operates also simply, measures indicating value and only represents the deviation of measured size to the known standard amount.In comparing and measuring, generally all adopt discrete to demarcate benchmark and demarcate respectively.The demarcation of original pitch diameter of thread, employing be bar-shapedly radially to demarcate bar and axially demarcate the method that bar is demarcated respectively; That is that taper thread must indicate the radial dimension at a certain axial cross section because sleeve pipe, the oil pipe of oil country tubular goods are taper thread.This method of demarcating respectively brings some troubles for the operation of survey crew.What the method for footpath mould was demarcated in the also useful imperfect taper certainly, though it has solved the trouble that taper thread is axially demarcated, but the calibrating block that diameter sealing together yet will be arranged again, just can finish the demarcation to external thread and external thread sealed diameter, what the external thread sealed diameter adopted is sealing footpath calibrating block.That is to say that the pitch diameter of thread needs 2～3 kinds of demarcation benchmark just can finish with the demarcation in sealing footpath at least.These all result in hand cramps and workload for calibrating, demarcation, measuring control etc.Therefore, designing footpath in a kind of integrated form taper thread, sealing demarcation rule directly is very important.

Summary of the invention

For solving the problem that exists in the above-mentioned technology, the purpose of this utility model provides a kind of being applicable to the demarcation rule of footpath rule, sealing bore gauge in the complete type integrated form of the special button external taper of the oil country tubular goods of various nonstandard specifications and models screw thread, is beneficial to improve accuracy of detection and detection efficiency.

For achieving the above object, the technical solution adopted in the utility model provides the demarcation rule of a kind of complete type integrated form sealing bore gauge, gauge for thread pitch diameter, wherein: these demarcation rule are the assembly of a smooth cylinder of complete type and circular cone, this assembly constitutes by two sections, one section is smooth cylindrical section, another section is smooth conical section, and the outside surface that described cylindrical section is provided with sealed diameter is that diameter is demarcated basic parameter and axial reference field; It is same basal plane that the middle footpath rule of described conical section are axially demarcated reference field and cylindrical section demarcation reference field; Described conical section also is provided with circular bead surface, and the sectional dimension of circular bead surface is the thread parameter benchmark, and the footpath is advised threading path and demarcated benchmark to middle footpath in also being provided with on described conical section, and described conical section also is the demarcation benchmark of tapering simultaneously; These demarcation rule are demarcated four above-mentioned benchmark.

The tapering of described conical section is 1: 16.

Described assembly is a conial ring shape body.

Effect of the present utility model is that the demarcation rule of this structure make reviewer's operation more accurate, convenient, fast, more are applicable to the needs of large-scale production.Because this structure is demarcated the assembly of rule and be can be the conial ring shape body, thereby, also alleviated testing staff's working strength for alleviating the weight of the demarcating rule condition that facilitates.

Description of drawings

Fig. 1 is that rule and calibrating block synoptic diagram are demarcated in the external thread sealing footpath of prior art;

Fig. 2 is the middle footpath rule calibration structure synoptic diagram of prior art;

Fig. 3 is a demarcation rule structural representation of the present utility model;

Fig. 4 is an integrated form external thread sealing of the present utility model footpath calibration structure synoptic diagram;

Fig. 5 is an external thread sealing of the present utility model footpath instrumentation plan;

Fig. 6 is that external thread of the present utility model is demarcated rule calibration structure synoptic diagram;

Fig. 7 advises external thread measurement structure synoptic diagram for footpath in of the present utility model.

Among the figure: 1: the diameter calibration value of sealing footpath

2: pitch diameter of thread baseline cross-section calibration value

3: middle footpath rule are at axial arbitrary section calibration value

4: 1/2 cone angle of screw thread

5: demarcate the rule diameter of bore

A: reference field is advised, is axially demarcated in sealing footpath, middle footpath

B: the radially demarcation basic parameter of a certain axial cross section of screw thread

C: axial measuring basis face is advised in middle footpath

D: petroleum casing pipe external thread tube head

E: the axial measuring basis face of sealing bore gauge

L1: cylindrical section L2: conical section J: sealing footpath calibrating block

M: sealing bore gauge Z: middle footpath rule J1: radially calibrating block is advised in middle footpath

J2: axial calibrating block is advised in middle footpath

Embodiment

In conjunction with the accompanying drawings complete type integrated form sealing bore gauge of the present utility model, gauge for thread pitch diameter demarcation rule structure and use are illustrated.

As shown in Figure 3, be that complete type integrated form sealing bore gauge of the present utility model, gauge for thread pitch diameter are demarcated rule, these demarcation rule are the assembly of a smooth cylinder and circular cone, assembly is made of for two sections L1, L2, the L1 section is a smooth cylindrical section, the L2 section is a smooth conical section, and the outside surface that described cylindrical section L1 is provided with sealed diameter is that diameter is demarcated basic parameter 1 and axial reference field A; The middle footpath of described conical section L2 is advised axial measuring basis face and is similarly face A, described conical section L2 also is provided with circular bead surface B, the sectional dimension of circular bead surface B is a thread parameter benchmark 2, also is provided with threading path and demarcates benchmark 3 to middle footpath on described conical section L2, and described conical section L2 also is provided with half cone angle 4.

This demarcation rule with said structure are that the integrated form that can demarcate four benchmark (being

sequence number

1,2,3,4) is simultaneously demarcated rule, and these demarcation rule are the smooth cylinder of a complete type and the assembly of circular cone, as shown in Figure 3.

Described complete type integrated form sealing bore gauge, gauge for thread pitch diameter are demarcated rule, and the face A of its cylindrical section L1 demarcates the demarcation reference field of rule for this integrated form, and the diameter of cylindrical section L1 is demarcated the demarcation benchmark that basic parameter 1 is design size.

The reference field of described conical section L2 also is the A face, and the diameter of section of this section shoulder B face is of a size of thread parameter benchmark 2.This design size then is the middle footpath rule demarcation size of screw thread once determining along the radial dimension of 1: 16 tapering.That is to say, on same demarcation rule, can finish demarcation four parameters.The 1st, the design parameter of sealed diameter; The 2nd, shoulder B face is the thread segment design size; The 3rd, the screw thread arbitrary axis to radially nominal diameter; 4 is thread tapers of 1: 16.

It below is the comparative illustration that detects with prior art.

One, L1 section:

Fig. 1 is that synoptic diagram is demarcated in the external thread sealing footpath of prior art.The demarcation in sealing footpath is realized that by sealing footpath calibrating block J the M among the figure demarcates rule for the sealing footpath.

Change into now with the L1 section of the present utility model among Fig. 3 and demarcate sealing footpath diameter.Fig. 4 is for sealing the demarcation synoptic diagram in footpath surely in the L1 segment mark with sealing bore gauge M.Timing signal, the axial reference field E of sealing bore gauge and the demarcation benchmark A face of L1 section are close to, L1 segment mark of the present utility model is decided reference field to be put between two gauge heads of sealing footpath demarcation rule, move movable gauge head and seek flex point, the adjustment form index places " zero-bit ", and the locking knob that will control its this position screws, to demarcate rule then shifts out, the sealing bore gauge of demarcating size well with adjusted goes to measure the radial dimension of certain axial distance of sealing footpath of screw thread tube head, the deviate that the indicating value of reading is screw thread tube head sealing footpath and demarcates benchmark on dial plate.

Fig. 5 is for demarcating the synoptic diagram of good external thread sealing bore gauge measurement products.

Two, L2 section:

Fig. 2 is that footpath rule are demarcated synoptic diagram in the external thread of prior art.Among the figure, Z is footpath rule in the external thread, and J1 is a radially calibrating block of external thread, and J1 is the axial calibrating block of external thread; Two calibrating block will be demarcated simultaneously and can be used.

Fig. 6 advises external thread calibration structure synoptic diagram for footpath in of the present utility model.Among the figure, the C face is the axial reference field of middle footpath rule.Timing signal, this C face and basal plane A of the present utility model are close to, and middle footpath is advised two gauge heads and can be placed arbitrarily along the demarcation face of L2 section, and is not subjected to the restriction of axial distance.Even two gauge head not in same cross section, can not influence measuring accuracy yet.This is because shoulder B face demarcates is the design size in a certain cross section of taper thread, and this size and 1: 16 tapering are once definite, and its size in arbitrary cross section of L2 section is exactly unique.(external thread demarcate be the big footpath of the small end size of taper thread); And no longer need axial demarcation, this will make checker's operation more accurate, convenient, fast, more be applicable to the needs of large-scale production.

Fig. 7 advises the instrumentation plan that Z measures external thread tube head D taper thread for footpath in calibrated with the utility model.

During measurement, the two axial measurement face C of middle footpath rule Z and the end face of external thread tube head D are close to, and move movable gauge head and seek flex point, and the indicating value of reading on dial plate is footpath and the deviate of demarcating benchmark in the threaded line pipe head thread.

The utility model is weight reduction, and it is designed to a completeness circular cone ring body, and its wall thickness can change the size of circular cone ring internal diameter 5 among Fig. 1 according to the size of product specification to be decided.

Claims

1, the demarcation rule of a kind of complete type integrated form sealing bore gauge, gauge for thread pitch diameter is characterized in that:

These demarcation rule are the assembly of a smooth cylinder of complete type and circular cone, this assembly is by (L1), (L2) two sections formations, (L1) the smooth cylindrical section of Duan Weiyi, (L2) outside surface that the smooth conical section of Duan Weiyi, described cylindrical section (L1) are provided with sealed diameter is that diameter is demarcated basic parameter (1) and axial reference field (A); The middle footpath of described conical section (L2) is advised axial measuring basis face and is similarly face (A), and described conical section (L2) also is provided with circular bead surface (B), and the sectional dimension of circular bead surface (B) is for demarcating the basic parameter (2) of screw thread; The footpath is advised threading path and is demarcated benchmark (3) to middle footpath in also being provided with on described conical section (L2), and described conical section (L2) also is provided with the tapering benchmark, and (4) are the angle of half cone; These demarcation rule are demarcated four above-mentioned benchmark.

2, the demarcation rule of complete type integrated form sealing bore gauge according to claim 1, gauge for thread pitch diameter, it is characterized in that: the tapering of described conical section (L2) is 1: 16.

3, the demarcation rule of complete type integrated form sealing bore gauge according to claim 1, gauge for thread pitch diameter, it is characterized in that: described assembly is a conial ring shape body.