Main shaft connecting rod fastening seat

Abstract

The utility model relates to a main shaft connecting rod fastening seat, which belongs to the technical field of machine manufacturing and assembling and comprises a connector body, and a guide cone section I, a drill rod connecting thread section I, a drill rod connecting thread section II, a positioning section and a drilling machine main shaft connecting thread section are sequentially arranged on the surface of the connector body. The diameter of the drill rod connecting thread section I is smaller than that of the connecting thread section II; the value range of the taper of the guide cone section is 30-45 degrees; the double fastening heads avoid precision deviation caused by common use of one fastening head.

Description

Technical Field

[0001] The utility model relates to a main shaft connecting rod fastening seat, belonging to the technical field of mechanical manufacturing and assembly. Background Art

[0002] With the development of modern manufacturing industry, the precision requirements for mechanical parts are getting higher and higher. The spindle coupling fastener is a key component connecting the spindle and the coupling. Its assembly accuracy directly affects the performance of the entire mechanical system. Therefore, high-precision measurement and positioning tools are required during the assembly process to ensure the matching accuracy between the components.

[0003] According to the rotary joint disclosed in Chinese invention patent CN101949268A, the rotary joint relates to the technical field of oil field drilling, and in particular to the structure of a drill pipe joint, including a lower joint with a hollow structure, the lower joint includes a large inner diameter lower joint and a small inner diameter lower joint from top to bottom, an upper joint with a hollow structure is arranged above the lower joint, the upper joint includes a small outer diameter upper joint and a large outer diameter upper joint from top to bottom, the large outer diameter upper joint is arranged in cooperation in the large inner diameter lower joint, a pressure cap is sleeved on the small outer diameter upper joint, the pressure cap is arranged at the upper end of the large outer diameter upper joint, and the pressure cap is threadedly connected with the large inner diameter lower joint. Since the upper joint of the present invention can rotate arbitrarily in the lower joint, the upper tool thereof can change direction arbitrarily as needed, the upper end of the joint can be connected to a circulation joint or a test wellhead, etc., the present invention has a simple structure, is easy to operate, and is safe to use.

[0004] When the spindle and drill rod of traditional equipment are tightly connected, it is easy for the precision deviation between the spindle and the drill rod to be too large when the drill rod is replaced. Utility Model Content

[0005] The technical problem to be solved by the utility model is: double fastening heads to avoid precision deviation caused by sharing one.

[0006] The utility model discloses a spindle connecting rod fastening seat, comprising a joint body, the surface of which is provided with a guide cone section I, a drill rod connecting thread section I, a drill rod connecting thread section II, a positioning section and a drilling rig spindle connecting thread section in sequence;

[0007] The diameter of the drill pipe connection thread section I is smaller than the diameter of the drill pipe connection thread section II;

[0008] The taper of the guide cone section I ranges from thirty degrees to forty-five degrees.

[0009] Furthermore, the thread direction, thread shape and pitch of the drill pipe connection thread section I and the drill pipe connection thread section II are the same.

[0010] Furthermore, a guide cone section II is provided between the drill rod connecting thread section I and the drill rod connecting thread section II.

[0011] Furthermore, the positioning section is provided with two positioning surfaces, and the two positioning surfaces are symmetrically arranged.

[0012] Furthermore, the drilling rig main shaft connecting thread section is tapered, and the taper angle of the drilling rig main shaft connecting thread section ranges from two degrees to five degrees.

[0013] Furthermore, a water hole is provided in the joint body.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model discloses a main shaft connecting rod fastening seat, wherein the joint body is the main structure, the guide cone section I is convenient for installing the external drill rod I and the drill rod II, the drill rod connecting threaded section I is connected to the drill rod I through threads, the drill rod connecting threaded section II is connected to the drill rod II through threads, the positioning section is used to fix the joint body, and is convenient for connecting the external drill rod I and the drill rod II with the drill rod connecting threaded section I and the drill rod connecting threaded section II respectively, the drilling rig main shaft connecting threaded section is used to connect the external drilling rig main shaft, thereby providing rotational torque for the drill rod I or the drill rod II; when replacing, because there are two connecting sections, it is convenient and quick to avoid replacing the joint body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0017] In the figure: 1. Joint body; 2. Guide cone section I; 3. Drill pipe connection thread section I; 4. Drill pipe connection thread section II; 5. Positioning section; 6. Drill rig main shaft connection thread section; 7. Guide cone section II; 8. Water hole;

[0018] 51. Positioning surface. DETAILED DESCRIPTION

[0019] Example 1

[0020] like Figure 1 As shown, the main shaft connecting rod fastening seat described in the utility model comprises a joint body 1, and the surface of the joint body 1 is provided with a guide cone section Ⅰ2, a drill rod connecting thread section Ⅰ3, a drill rod connecting thread section Ⅱ4, a positioning section 5 and a drilling rig main shaft connecting thread section 6 in sequence;

[0021] The diameter of the drill pipe connecting threaded section Ⅰ3 is smaller than that of the drill pipe connecting threaded section Ⅱ4; the taper of the guide cone section Ⅰ2 ranges from thirty degrees to forty-five degrees.

[0022] The joint body 1 is the main structure, and the guide cone section Ⅰ2 is convenient for installing the external drill rod Ⅰ and drill rod Ⅱ. The drill rod connecting threaded section Ⅰ3 is connected to the drill rod Ⅰ through threads, and the drill rod connecting threaded section Ⅱ4 is connected to the drill rod Ⅱ through threads. The positioning section 5 is used to fix the joint body 1, which is convenient for the external drill rod Ⅰ and drill rod Ⅱ to be connected to the drill rod connecting threaded section Ⅰ3 and the drill rod connecting threaded section Ⅱ4 respectively. The drilling rig main shaft connecting threaded section 6 is used to connect the external drilling rig main shaft, thereby providing rotational torque for the drill rod Ⅰ or drill rod Ⅱ. As an optimization, the taper value range of the guide cone section can be thirty degrees, forty degrees or forty-five degrees.

[0023] like Figure 1 As shown, as an optimization, the thread direction, tooth shape and pitch of the drill pipe connection thread section Ⅰ3 and the drill pipe connection thread section Ⅱ4 are the same.

[0024] The thread direction, tooth shape and pitch of the drill pipe connection thread section Ⅰ3 and the drill pipe connection thread section Ⅱ4 are the same, which is convenient for standardized production and operation.

[0025] like Figure 1 As shown, as an optimization, a guide cone section II7 is provided between the drill rod connecting thread section I3 and the drill rod connecting thread section II4.

[0026] The guide cone section II 7 provides guidance for installing the drill pipe II.

[0027] like Figure 1 As shown, as an optimization, the positioning section 5 is provided with two positioning surfaces 51, and the two positioning surfaces 51 are symmetrically arranged.

[0028] The two positioning surfaces 51 are used to provide clamping during the installation process to prevent the joint body 1 from rotating.

[0029] like Figure 1 As shown, as an optimization, the drilling rig main shaft connecting threaded section 6 is tapered, and the tapered angle of the drilling rig main shaft connecting threaded section 6 ranges from two degrees to five degrees.

[0030] As an optimization, the taper angle of the drill spindle connecting threaded section 6 can be two degrees, three and a half degrees or five degrees.

[0031] like Figure 1 As shown, as an optimization, the joint body 1 is provided with a water hole 8 .

[0032] During the process of the external drilling machine rotating and drilling, the water holes 8 are used for water passage.

[0033] Working process or working principle:

[0034] The joint body 1 is connected to the drill rig main shaft through the drill rig main shaft connecting threaded section 6, and the two positioning surfaces 51 are engaged with an external clamp to pre-fix the joint body 1, and the external drill rod I or drill rod II is connected to the joint body 1. When replacing, there are two connecting sections to avoid accuracy deviation caused by sharing one.

[0035] The description of the direction and relative position relationship of the structure in the present invention, such as the description of front, back, left, right, up, and down, does not constitute a limitation of the present invention, but is only for the convenience of description.

Claims

1. A spindle connecting rod fastening seat, characterized in that: The joint body (1) comprises a guide cone section I (2), a drill pipe connection thread section I (3), a drill pipe connection thread section II (4), a positioning section (5) and a drilling rig main shaft connection thread section (6) in sequence on the surface of the joint body (1); The diameter of the drill pipe connection thread section I (3) is smaller than the diameter of the drill pipe connection thread section II (4); The taper of the guide cone section I (2) ranges from thirty degrees to forty-five degrees.

2. The spindle connecting rod fastening seat according to claim 1, characterized in that: The thread direction, thread shape and pitch of the drill pipe connection thread section I (3) and the drill pipe connection thread section II (4) are the same.

3. The spindle connecting rod fastening seat according to claim 2, characterized in that: A guide cone section II (7) is provided between the drill rod connecting thread section I (3) and the drill rod connecting thread section II (4).

4. The spindle connecting rod fastening seat according to claim 3, characterized in that: The positioning section (5) is provided with two positioning surfaces (51), and the two positioning surfaces (51) are symmetrically arranged.

5. The spindle connecting rod fastening seat according to claim 4, characterized in that: The drilling rig main shaft connecting thread section (6) is tapered, and the taper angle of the drilling rig main shaft connecting thread section (6) ranges from 2 degrees to 5 degrees.

6. The spindle connecting rod fastening seat according to claim 5, characterized in that: The joint body (1) is provided with a water through hole (8).

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