Novel thread axis irregularity measuring device
By designing a new type of thread axis misalignment measuring device with main and auxiliary scales, the problem of time-consuming and labor-intensive measurement in the existing technology has been solved, achieving a lightweight, simple and fast measurement effect, and improving the inspection efficiency of oil casing.
Patent Information
- Application Number
- CN202520319638.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-02-26
AI Technical Summary
Existing technology requires ring gauges to measure the misalignment of the thread axis of oil casing pipes, which makes the measurement time-consuming and labor-intensive, increases the burden of machining and inspection, and reduces efficiency.
Design a novel thread axis misalignment measuring device including a main scale and a secondary scale. The main scale is in close contact with the tooth tip of the external thread, and the measuring edge of the secondary scale is in contact with the inner wall. By rotating the oil pipe or sleeve one revolution, the difference between the maximum and minimum points is calculated to measure the thread axis misalignment.
It enables lightweight, simple and quick measurement of thread axis misalignment, eliminating the need for auxiliary tools, and improving measurement efficiency and product quality assurance.
Smart Images
Figure CN223741460U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to oil casing machining technical field, especially a new thread axis misalignment measuring device. BACKGROUND
[0002] In the petroleum industry, the oil casing is an important exploitation tool, wherein, the indexes of the oil casing are mainly full length straightness, pipe end straightness, thread axis misalignment and the like, if the deviation of the full length straightness is big and the deviation of the thread axis misalignment is big, it can cause the downhole string borehole curvature to be too big, and seriously can cause the string to fail in advance, such as the packer to fail in advance, the pipe rod eccentric wear to be intensified, the oil pump gap wear to be intensified, the piston to not enter the pump cylinder during operation construction and the like. Figures 8-10 Many enterprises will add the inspection requirements of the full length straightness, the pipe end straightness and the thread axis misalignment when producing the downhole products such as the oil casing, but when measuring the outer thread axis misalignment, since there is no special measuring tool, the ring gauge needs to be assisted to measure the thread axis misalignment, and when measuring specifically, the distance between the inner wall of the end outer thread of the oil casing and the outer circle of the ring gauge is measured by using the vernier caliper 5 after the close distance is measured and fastened, the maximum point and the minimum point in a circle are found, and then the difference value is calculated, and the difference value cannot exceed an internal specified value. The utility model discloses a new thread axis misalignment measuring device.
[0003] The utility model discloses a new thread axis misalignment measuring device.
[0004] The utility model discloses a novel thread axis misalignment measuring device, its technical scheme is: including main ruler (1) and vice ruler (2), the main ruler (1) includes main ruler main body (1.1), main ruler measurement bevel (1.4), main ruler measurement end surface (1.5), one side of the middle part of main ruler main body (1.1) is equipped with main ruler measurement bevel (1.4), the upper surface of main ruler measurement bevel (1.4) is inclined plane structure, is used for with the tooth top outside of outer thread (3) and is close, the upper outside of main ruler main body (1.1) is main ruler measurement end surface (1.5), is used for with the end surface contact of outer thread (3);The vice ruler (2) includes vice ruler support body (2.1), vice ruler measurement body (2.2), vice ruler handle (2.3), vice ruler measurement blade mouth (2.5), vice ruler scale (2.6), connecting hole (2.7), is equipped with connecting hole (2.7) in the inside of vice ruler support body (2.1), and main ruler (1) passes through connecting hole (2.7) and is connected with vice ruler (2) as together, one side of the lower end of vice ruler support body (2.1) is equipped with vice ruler measurement body (2.2), and the surface of vice ruler measurement body (2.2) is equipped with vice ruler scale (2.6), is equipped with vice ruler measurement blade mouth (2.5) at the left end of vice ruler support body (2.1), is used for with the inner wall contact of outer thread (3);Install vice ruler handle (2.3) at the right end of vice ruler support body (2.1).
[0005] Preferably, the middle part of the main ruler main body (1.1) is provided with a main ruler scale (1.2).
[0006] Preferably, the left end of the vice ruler support body (2.1) is provided with a locking screw (2.4), and the locking screw (2.4) is located above the vice ruler measurement blade mouth (2.5). The locking screw (2.4) passes through the vice ruler support body (2.1) to lock and fix the position of the main ruler main body (1.1).
[0007] Preferably, the upper right end of the main ruler main body (1.1) is provided with an anti-loosening screw (1.3).
[0008] Preferably, the lower part of the vice ruler measurement blade mouth (2.5) is in the shape of an isosceles triangle.
[0009] Preferably, the vice ruler measurement body (2.2) is located on one side of the lower end of the vice ruler support body (2.1), and the thickness of the vice ruler measurement body (2.2) is less than the thickness of the vice ruler support body (2.1).
[0010] Preferably, the left end of the vice ruler handle (2.3) is fixedly connected with a screw rod, and the screw rod is connected to a screw hole at the right end of the vice ruler support body (2.1).
[0011] The utility model discloses an advantageous effect is: the utility model discloses two measuring surfaces of main ruler and vice ruler are pulled apart, and its opening file is greater than the wall thickness of the pipe end of the external thread of oil pipe or casing pipe, then, the external thread is inserted between the measuring surface of main ruler and vice ruler, the main ruler measuring bevel of main ruler is pasted to the outer surface of external thread, and the vice ruler measuring edge of vice ruler is pasted to the inner wall of external thread, the end face of oil pipe or casing pipe is pasted to the end face reference of the utility model, the utility model keeps unmoved, rotates oil pipe or casing pipe a week, finds the maximum and minimum point, calculates the difference, and it is the non-uniformity of thread axis, it has the advantages of light and handy, simple and convenient, and can measure the non-uniformity of external thread axis at any time and anywhere without any auxiliary tool, and provides effective measuring tool guarantee for product quality guarantee. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1 It is the whole structure schematic diagram of the utility model;
[0013] Figure 2 It is the structure schematic diagram of main ruler of the utility model;
[0014] Figure 3 It is the structure schematic diagram of vice ruler;
[0015] Figure 4 It is the structure schematic diagram of the side direction of vice ruler;
[0016] Figure 5 It is the structure schematic diagram of the top direction of vice ruler;
[0017] Figure 6 It is the side structure schematic diagram of vice ruler measuring edge;
[0018] Figure 7 It is the state schematic diagram when the utility model measures;
[0019] Figure 8 It is the measurement state schematic diagram of prior art;
[0020] Figure 9 It is the structure schematic diagram of external thread to be measured;
[0021] Figure 10 It is the structure schematic diagram of the ring gauge of prior art;
[0022] In the above figure: main ruler 1, vice ruler 2, external thread 3, ring gauge 4, vernier caliper 5, main ruler main body 1.1, main ruler scale 1.2, anti-drop screw 1.3, main ruler measuring bevel 1.4, main ruler measuring end face 1.5, vice ruler support body 2.1, vice ruler measuring body 2.2, vice ruler handle 2.3, locking screw 2.4, vice ruler measuring edge 2.5, vice ruler scale 2.6, connecting hole 2.7. DETAILED DESCRIPTION
[0023] The preferred embodiments of the utility model are described below in combination with the drawings, and it should be understood that the preferred embodiments described herein are only used for illustrating and explaining the utility model, and are not used for limiting the utility model.
[0024] Embodiment 1, refer to Figures 1-7 The utility model discloses a novel thread axis misalignment measuring device, including main ruler 1 and vice ruler 2, main ruler 1 includes main ruler main body 1.1, main ruler measuring bevel 1.4, main ruler measuring end surface 1.5, one side of the middle part of main ruler main body 1.1 is equipped with main ruler measuring bevel 1.4, the upper surface of main ruler measuring bevel 1.4 is inclined plane structure, is used for with the tooth top outside of outer thread 3 close, the upper outside of main ruler main body 1.1 is main ruler measuring end surface 1.5, is used for with the end surface contact of outer thread 3, vice ruler 2 includes vice ruler support body 2.1, vice ruler measuring body 2.2, vice ruler handle 2.3, vice ruler measuring blade mouth 2.5, vice ruler scale 2.6, connecting hole 2.7, be equipped with connecting hole 2.7 in the inside of vice ruler support body 2.1, main ruler 1 passes through connecting hole 2.7 and is connected with vice ruler 2 together, one side of the lower end of vice ruler support body 2.1 is equipped with vice ruler measuring body 2.2, the surface of vice ruler measuring body 2.2 is equipped with vice ruler scale 2.6, be equipped with vice ruler measuring blade mouth 2.5 at the left end of vice ruler support body 2.1, is used for with the inner wall contact of outer thread 3, installs vice ruler handle 2.3 at the right end of vice ruler support body 2.1.
[0025] Wherein, the middle part of the main ruler main body 1.1 is equipped with the main ruler scale 1.2.
[0026] The left end of the vice ruler support body 2.1 is equipped with the locking screw 2.4, and the locking screw 2.4 is located above the vice ruler measuring blade mouth 2.5, and the locking screw 2.4 passes through the vice ruler support body 2.1 to lock and fix the position of the main ruler main body 1.1.
[0027] The upper right end of the main ruler main body 1.1 is equipped with the anti-loosening screw 1.3, which plays a role in preventing the vice ruler 2 from falling off.
[0028] The lower part of the vice ruler measuring blade mouth 2.5 is in the shape of an isosceles triangle, which plays a role in accurately contacting the inner wall of the outer thread 3.
[0029] The vice ruler measuring body 2.2 is located on one side of the lower end of the vice ruler support body 2.1, and the thickness of the vice ruler measuring body 2.2 is less than the thickness of the vice ruler support body 2.1.
[0030] The utility model discloses can according to API standard design different taper, can correspond to different buckle type, should cope with the pipe of different wall thickness all can use the utility model, when using, the vice ruler 2's vice ruler support body 2.1 is installed on the main ruler 1, the two measuring surfaces of main ruler 1 and vice ruler 2 are pulled apart, and its opening is greater than the wall thickness of the pipe end of the external thread 3 of oil pipe or casing pipe, then, the external thread 3 is inserted between the measuring surface of main ruler 1 and vice ruler 2, the main ruler measuring bevel 1.4 of main ruler 1 is pasted on the outer surface of external thread 3, and the vice ruler measuring blade edge 2.5 of vice ruler 2 is pasted on the inner wall of external thread 3, and the locking screw 2.4 is arranged on vice ruler 2, and the numerical value of ruler can be watched when measuring locking screw 2.4, the end surface of oil pipe or casing pipe is pasted on the end surface reference of the utility model, the utility model keeps unmoved, rotates oil pipe or casing pipe a week, finds the maximum and minimum point, calculates the difference, and it is the thread axis misalignment.
[0031] The utility model discloses a kind of new thread axis misalignment measuring devices, including main ruler 1 and vice ruler 2, the main ruler 1 includes main ruler main body 1.1, main ruler measuring bevel 1.4, main ruler measuring end surface 1.5, the side of main ruler main body 1.1 in middle part is equipped with main ruler measuring bevel 1.4, the upper surface of main ruler measuring bevel 1.4 is bevel structure, for being pasted tightly with the tooth top outside of external thread 3, the outside of upper portion of main ruler main body 1.1 is main ruler measuring end surface 1.5, for being contacted with the end surface of external thread 3;The vice ruler 2 includes vice ruler support body 2.1, vice ruler measuring body 2.2, vice ruler handle 2.3, vice ruler measuring blade edge 2.5, vice ruler scale 2.6, connecting hole 2.7, connecting hole 2.7 is equipped in the inside of vice ruler support body 2.1, main ruler 1 passes through connecting hole 2.7 and is connected with vice ruler 2 as together, the side of lower end of vice ruler support body 2.1 is equipped with vice ruler measuring body 2.2, the surface of vice ruler measuring body 2.2 is equipped with vice ruler scale 2.6, vice ruler measuring blade edge 2.5 is equipped in the left end of vice ruler support body 2.1, for being contacted with the inner wall of external thread 3;Vice ruler handle 2.3 is installed in the right end of vice ruler support body 2.1.
[0032] Different from embodiment 1 is:
[0033] The above-mentioned vice ruler handle 2.3 adopts cylindrical antiskid handle, the left end of vice ruler handle 2.3 is fixedly connected screw rod, is connected to the screw hole of the right end of vice ruler support body 2.1 through screw rod, is convenient for through vice ruler handle 2.3 to operate and move the position of vice ruler.
[0034] The above-mentioned, only is the preferred embodiment of the utility model, any skilled person in the art can utilize the technical solution of the above-mentioned to modify the utility model or modify it as equivalent technical solution. Therefore, any simple modification or equivalent transformation according to the technical scheme of the utility model is within the scope of the utility model claimed.
Claims
1. A novel thread axis misalignment measuring device characterized by: The utility model provides a kind of ruler, including main ruler (1) and vice ruler (2), the main ruler (1) includes main ruler body (1.1), main ruler measuring bevel (1.4), main ruler measuring end surface (1.5), the middle part side of main ruler body (1.1) is equipped with main ruler measuring bevel (1.4), the upper surface of main ruler measuring bevel (1.4) is bevel structure, for with the tooth top outside of external thread (3) close, the upper outside of main ruler body (1.1) is main ruler measuring end surface (1.5), for with the end surface contact of external thread (3);The vice ruler (2) includes vice ruler support body (2.1), vice ruler measuring body (2.2), vice ruler handle (2.3), vice ruler measuring blade (2.5), vice ruler scale (2.6), connecting hole (2.7), connecting hole (2.7) is equipped in the inside of vice ruler support body (2.1), main ruler (1) passes through connecting hole (2.7) and is connected with vice ruler (2) as together, the lower end side of vice ruler support body (2.1) is equipped with vice ruler measuring body (2.2), the surface of vice ruler measuring body (2.2) is equipped with vice ruler scale (2.6), vice ruler measuring blade (2.5) is equipped in the left end of vice ruler support body (2.1), for with the inner wall contact of external thread (3);Vice ruler handle (2.3) is installed in the right end of vice ruler support body (2.1).
2. The novel thread axial misalignment measuring device according to claim 1, characterized in that: The middle part of the main ruler body (1.1) is provided with a main ruler scale (1.2).
3. The novel thread axis misalignment measuring device according to claim 2, characterized in that: The left end of the vice ruler support body (2.1) is provided with a locking screw (2.4), and the locking screw (2.4) is located above the vice ruler measuring blade (2.5). The locking screw (2.4) passes through the vice ruler support body (2.1) to lock and fix the position of the main ruler body (1.1).
4. The novel thread axis misalignment measuring device according to claim 3, characterized in that: The upper right end of the main ruler body (1.1) is provided with an anti-loosening screw (1.3).
5. The novel thread axis misalignment measuring device according to claim 4, characterized in that: The lower part of the vice ruler measuring blade (2.5) is in the shape of an isosceles triangle.
6. The novel thread axis misalignment measuring device according to claim 1, characterized in that: The vice ruler measuring body (2.2) is located on one side of the lower end of the vice ruler support body (2.1), and the thickness of the vice ruler measuring body (2.2) is less than the thickness of the vice ruler support body (2.1).
7. The novel thread axis misalignment measuring device according to claim 1, characterized in that: The left end of the vice ruler handle (2.3) is fixedly connected with a screw rod, which is connected to the screw hole at the right end of the vice ruler support body (2.1) through the screw rod.