Guiding guide cone for main shaft of drilling traveling block

Abstract

The utility model relates to the technical field of oil drilling platforms, in particular to a drilling traveling block spindle guide cone. The guiding guide cone comprises a connecting part, a guiding part and an extending part which are sequentially connected in the axial direction, and the connecting part, the guiding part and the extending part are the same in axis and are all of a rotary body structure. Due to the fact that the connecting part of the guiding guide cone is detachably connected with the main shaft, the main shaft is disassembled and assembled through the guiding guide cone when being assembled and disassembled. The outer diameter of the connecting part, the diameter of the lower bottom surface of the guide part and the diameter of the main shaft are the same, the outer diameter of the extension part is smaller than the diameter of the main shaft, and then the outer diameter of the extension part is smaller than the pin shaft hole, so that the main shaft can smoothly enter the pin shaft hole during installation; the connecting surface of the lifting lug and the round girder pin hole can form a transition surface conveniently, the coaxiality of the lifting lug and the round girder pin hole can be adjusted conveniently, the mounting efficiency is improved, knocking mounting and dismounting are avoided, and the spindle is prevented from being damaged.

Description

Technical Field

[0001] This utility model relates to the field of oil drilling platform technology, and in particular to a drilling travel carriage main shaft guide cone. Background Technology

[0002] In drilling operations, the main shaft (master pin) of the traveling block's girder is a crucial component connecting the front and rear lifting lugs of the traveling block to the girder. Its installation and disassembly directly affect the stability and safety of the drilling equipment. The front end of the main shaft is designed with a threaded rod, the outer diameter of which is slightly smaller than the outer diameter of the main shaft itself, creating a stepped surface between them. During installation, the main shaft needs to pass through both the front and rear lifting lugs and one pin hole on the girder, for a total of three pin holes. Because the diameter of the main shaft is exactly the same as the inner diameter of these three pin holes, the coaxiality of the three pin holes must be extremely precise.

[0003] However, in practice, due to the considerable weight of the main shaft beam, adjusting the coaxiality of its pin holes becomes extremely difficult. While the traditional manual hammering method can attempt to pass the main shaft through the pin holes to some extent, this method has many drawbacks. First, during the hammering process, the stepped surface is prone to colliding with the cross-section of the pin hole, thus obstructing the smooth passage of the main shaft. This method is not only inefficient but also easily deforms the stepped surface, rendering the main shaft unusable. Furthermore, when disassembling the main shaft, the need to hammer the cross-section of the screw can easily damage the male threads of the screw, affecting its subsequent performance.

[0004] In summary, there is currently a lack of efficient, safe, and convenient tools for loading and unloading the spindle of the drilling rig traveling beam. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In view of the above-mentioned shortcomings and deficiencies of the prior art, this utility model provides a drilling travel carriage main shaft guide cone, which solves the technical problems of difficult coaxiality adjustment, low installation and disassembly efficiency, and easily damaged parts in the installation of the ingot beam in the prior art.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0009] This utility model embodiment provides a drilling rig main shaft guide cone, including a connecting part, a guide part, and an extension part connected in sequence. The connecting part, guide part, and extension part are coaxially arranged and are all rotating structures. The connecting part and the extension part are both cylindrical structures. The guide part is a frustum-shaped structure, and the diameter of the upper bottom surface of the guide part is smaller than the diameter of the lower bottom surface of the guide part. The lower bottom surface of the guide part is connected to the connecting part, and the upper bottom surface of the guide part is connected to the extension part. The connecting part is detachably connected to the main shaft, and the outer diameter of the connecting part, the diameter of the lower bottom surface of the guide part, and the diameter of the main shaft are the same. The outer diameter of the extension part is smaller than the diameter of the main shaft.

[0010] Preferably, the connecting part, the guide part, and the extension part are internally connected.

[0011] Preferably, the inner wall of the connecting part is provided with an internal thread; the internal thread of the connecting part is detachably connected to the external thread of the spindle.

[0012] Preferably, the inner wall of the connector is provided with a smooth guide section; the smooth guide section is located at the end of the internal thread away from the guide section.

[0013] Preferably, the internal thread of the connecting part engages with the spindle by 3-5 thread pitches.

[0014] Preferably, the slope of the guide portion is 35°-45°.

[0015] Preferably, the extension has multiple sets of long pin holes spaced apart; each set of long pin holes includes two long pin holes arranged symmetrically along the radial direction of the extension.

[0016] (III) Beneficial Effects

[0017] The beneficial effects of this utility model are:

[0018] This utility model discloses a drilling rig main shaft guide cone, comprising a connecting part, a guide part, and an extension part connected axially in sequence. The connecting part, guide part, and extension part have the same axis and are all rotating structures. The connecting part and extension part are cylindrical structures, while the guide part is a frustum-shaped structure. Since the connecting part of the guide cone is detachably connected to the main shaft, the main shaft is installed and disassembled using the guide cone. Furthermore, because the outer diameter of the connecting part, the lower bottom diameter of the guide part, and the diameter of the main shaft are the same, and the outer diameter of the extension part is smaller than the diameter of the main shaft, and consequently smaller than the pin hole, the main shaft can easily enter the pin hole during installation. Simultaneously, the frustum-shaped guide part facilitates the formation of a transition surface between the lifting lug and the pin hole of the girder, making it easier to adjust the coaxiality of the lifting lug and the pin hole of the girder, thus preventing jamming during installation, improving installation efficiency, and avoiding damage to the main shaft caused by impacts during installation and disassembly. Attached Figure Description

[0019] Figure 1This is a schematic diagram of the structure of the guide cone used in the spindle mounting of this utility model;

[0020] Figure 2 A schematic diagram of the main shaft and guide cone;

[0021] Figure 3 A schematic diagram of the guiding cone structure.

[0022] [Explanation of Labels in the Attached Image]

[0023] 1: Guide cone; 11: Connecting part; 111: Internal thread; 112: Guide smooth section; 12: Guide part; 13: Extension part; 131: Long pin hole; 2: Main shaft; 21: External thread; 3: Yuanbao beam; 4: Traveling car lifting lug. Detailed Implementation

[0024] To better explain and facilitate understanding of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] like Figure 1 As shown, this embodiment of the utility model provides a drilling rig main shaft guide cone. The guide cone 1 includes a connecting part 11, a guiding part 12, and an extension part 13 connected in sequence. The connecting part 11, the guiding part 12, and the extension part 13 are coaxially arranged and are all rotating structures. Specifically, the connecting part 11 and the extension part 13 are both cylindrical structures, and the guiding part 12 is a frustum-shaped structure.

[0026] In this embodiment, the diameter of the upper bottom surface of the guide portion 12 is smaller than the diameter of the lower bottom surface of the guide portion 12. The lower bottom surface of the guide portion 12 is connected to the connecting portion 11, and the upper bottom surface of the guide portion 12 is connected to the extension portion 13. The connecting portion 11 is detachably connected to the main shaft 2. The outer diameter of the connecting portion 11, the diameter of the lower bottom surface of the guide portion 12, and the diameter of the main shaft 2 are the same. The outer diameter of the extension portion 13 is smaller than the diameter of the main shaft 2.

[0027] Since the connecting part 11 of the guide cone 1 is detachably connected to the main shaft 2, the main shaft 2 is installed and disassembled via the guide cone 1. Furthermore, since the outer diameter of the connecting part 11, the bottom diameter of the guide part 12, and the diameter of the main shaft 2 are the same, and the outer diameter of the extension part 13 is smaller than the diameter of the main shaft 2, and therefore smaller than the pin hole, the main shaft 2 can easily enter the pin hole during installation. Simultaneously, the frustum-shaped guide part 12 facilitates the formation of a transition surface between the connecting surfaces of the lifting lug and the pin hole of the inverted beam 3, making it easier to adjust the coaxiality of the lifting lug and the pin hole of the inverted beam 3. This prevents jamming during installation, improves installation efficiency, and avoids damage to the main shaft 2 caused by impacts during installation and disassembly. In this embodiment, the slope of the guide part 12 is 35°-45°, preferably 45°.

[0028] In order to reduce the weight of the guide cone 1, the connecting part 11, the guide part 12 and the extension part 13 are internally connected.

[0029] like Figure 2-3 As shown, the inner wall of the connecting part 11 is provided with an internal thread 111, and the internal thread 111 of the connecting part 11 is detachably connected to the external thread 21 of the spindle 2. On the one hand, the detachable connection can be achieved through the threaded connection, and on the other hand, since the connecting part 11 is sleeved on the external thread 21 of the spindle 2, the threaded end of the spindle 2 can be protected during installation and disassembly to avoid damage.

[0030] To facilitate the mating of the internal thread 111 of the connecting part 11 and the external thread 21 of the spindle 2, a guide smooth section 112 is provided on the inner wall of the connecting part 11. The guide smooth section 112 is located at the end of the internal thread 111 away from the guide part 12. When the connecting part 11 and the spindle 2 are initially mated, the guide smooth section 112 of the connecting part 11 is first inserted into the end of the spindle 2, and then the two are screwed together, making the operation simple and quick. In addition, in practical applications, since the connection between the guide cone 1 and the spindle 2 does not require excessively high rigidity, as long as the two can be connected and the guide cone 1 can drive the spindle 2 through the pin hole, the two can be quickly connected. The internal thread 111 of the connecting part 11 engages with the spindle 2 by 3-5 threads.

[0031] To further reduce the weight of the loading tool and facilitate its handling by personnel passing through the lever, multiple sets of long pin holes 131 are provided on the extension 13 at intervals. Each set of long pin holes 131 includes two long pin holes 131 arranged symmetrically along the radial direction of the extension 13.

[0032] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0033] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0034] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "beneath" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0035] In the description of this specification, the terms "one embodiment," "some embodiments," "embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0036] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, alterations, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A drill string truck mandrel guide cone, characterized by, The connecting part (11), the guiding part (12) and the extending part (13) are coaxially arranged and are all of rotary body structure; The connecting part (11) and the extending part (13) are both of cylindrical structure; The guiding part (12) is of circular truncated cone structure, the diameter of the lower bottom surface of the guiding part (12) is smaller than that of the upper bottom surface, the lower bottom surface of the guiding part (12) is connected with the connecting part (11), and the upper bottom surface of the guiding part (12) is connected with the extending part (13); The connecting part (11) is detachably connected with the main shaft (2), the outer diameter of the connecting part (11), the diameter of the lower bottom surface of the guiding part (12) and the diameter of the main shaft (2) are the same; The outer diameter of the extending part (13) is smaller than the diameter of the main shaft (2).

2. The drill well traveling block main shaft guiding and leading cone according to claim 1, characterized in that: The connecting part (11), the guiding part (12) and the extending part (13) are internally communicated.

3. The drill well traveling block main shaft guiding and leading cone according to claim 2, characterized in that: The inner wall of the connecting part (11) is provided with internal thread (111); The internal thread (111) of the connecting part (11) is detachably connected with the external thread (21) of the main shaft (2).

4. The drill well traveling block main shaft guiding and leading cone according to claim 3, characterized in that: The inner wall of the connecting part (11) is provided with guiding smooth section (112); The guiding smooth section (112) is located at the end of the internal thread (111) away from the guiding part (12).

5. The drill well traveling block main shaft guiding and leading cone according to claim 3, characterized in that: The internal thread (111) of the connecting part (11) is screwed with the main shaft (2) for 2-5 pitches.

6. The drill well traveling block main shaft guiding and leading cone according to claim 1, characterized in that: The inclination of the guiding part (12) is 35°-45°.

7. The drill well traveling block main shaft guiding and leading cone according to claim 1, characterized in that: The extending part (13) is provided with multiple groups of long pin holes arranged at intervals; Each group of long pin holes includes two long pin holes (131) symmetrically arranged along the radial direction of the extending part (13).

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