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Universal shaft threaded connection directional assembling gauge for screw drilling tool

A threaded connection and directional assembly technology, applied in the direction of angle/taper measurement, etc., can solve the problems such as difficulty in ensuring that the left valve meets the design requirements, low qualification rate of shaft body assembly at one time, and low work efficiency, so as to improve assembly quality. And the assembly pass rate, improve the assembly pass rate, the effect of strong practicability

Active Publication Date: 2011-05-25
BC P INC CHINA NAT PETROLEUM CORP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Even so many times of trial assembly, it is difficult to ensure that the position angle of the left valve 4 and the right valve 6 meets the design requirements; at the same time, frequent trial assembly is prone to "burning buckle" phenomenon
In addition, the above-mentioned assembly method is complicated in work, low in efficiency, and high in labor intensity, and the one-time assembly pass rate of the shaft body of the cardan shaft assembly is very low.

Method used

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  • Universal shaft threaded connection directional assembling gauge for screw drilling tool
  • Universal shaft threaded connection directional assembling gauge for screw drilling tool
  • Universal shaft threaded connection directional assembling gauge for screw drilling tool

Examples

Experimental program
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Embodiment 1

[0045] Embodiment 1: Taking a screw drilling tool cardan shaft threaded connection directional assembly gauge as an example, the present invention will be further described in detail.

[0046] refer to Figure 1a with Figure 1b . The screw drilling tool cardan shaft thread connection directional assembly gauge of the present invention is mainly composed of a handle 1 , a plug gauge 2 and a ring gauge 3 .

[0047] refer to Figure 1a . The plug gauge 2 includes a cylindrical dial with a thickness of 20 mm and a diameter of 111.25 mm. A cylindrical handle is arranged on one end face of the dial, and a transverse hole is arranged at the top of the cylindrical handle, and a cylindrical handle 1 is inserted in the transverse hole. There is an external threaded body on the other end face of the dial, and the external threaded body has external threads. The external thread specification of the plug gauge 2 external thread body is the same as the internal thread specification o...

Embodiment 2

[0056] Example 2. The difference between embodiment 2 and embodiment 1 is: refer to Figure 5b . The 0 scale line on the upper circle of the ring gauge 3 is opposite to the 0 scale line of the plug gauge 2, and the 12 scale line of the next circle of the ring gauge 3 is opposite to the 0 scale line of the plug gauge 2. In addition, the reference point on the right valve 6 is different, and the reference point on the right valve 6 is the midline of the two axes corresponding to the top and bottom arcs.

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Abstract

The invention discloses a universal shaft threaded connection directional assembly gauge for a screw drilling tool, which is applied to detecting the assembly of a universal shaft assembly for the screw drilling tool for petroleum drilling. A plug gauge comprises a cylindrical dial gauge, and external threads are formed on the other end face of the dial gauge. A cycle of scales are arranged on anexternal surface of the dial gauge cylinder, the number of the scales is 72, and a corresponding scale serial number is correspondingly arranged on each scale. Internal threads are formed on a ring gauge; two cycles of upper and lower scales are arranged parallelly on the external surface of the circular ring body of the ring gauge and are in the same line; the number of each cycle of scales is 72; a corresponding scale serial number is correspondingly arranged on each scale; and the sequence difference between the upper cycle of scales and the lower cycle of scales is 12 scales. The plug gauge is screwed in the internal threads of a first part, and a measurement value is recorded by taking the directional assembling point of the first part as reference; the phase angle of the directionalassembling point of a second part is measured by the ring gauge; and finally the first part and the second part are matched for assembly according to the measurement value. Therefore, the assembly quality of the shaft can be improved.

Description

technical field [0001] The invention relates to a screw drilling tool for petroleum drilling, in particular to the directional assembly inspection of the universal shaft assembly of the screw drilling tool, and is a special tool for inspecting the shaft body of the cardan shaft assembly of the screw drilling tool. Background technique [0002] In the screw drilling tool used for oil drilling, one component is the cardan shaft assembly. The main function of the screw drilling tool cardan shaft assembly is to transmit torque, overcome the planetary motion generated by the rotor in the stator cavity, and Eliminates bends in cardan shaft bend housings. In the universal joint shaft assembly, the torque is transmitted by the shaft body. refer to Figure 4 . Shaft body is made up of left flap 4, right flap 6 and connecting rod 5. The two ends of connecting rod 5 have external threads, and the external threads at connecting rod 5 two ends are respectively connected with the inter...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B5/24
Inventor 王金宏周玉海刘广华邹连阳李东阳
Owner BC P INC CHINA NAT PETROLEUM CORP