Assembly for pressing main shaft head and main body by screw

Abstract

The utility model provides an assembly with a main shaft head and a main body pressed by screws, and relates to the technical field of offshore oil exploration equipment. The spindle comprises a spindle head and a body, the bottom end of the spindle head is provided with an unthreaded hole, the top end of the body is provided with a smooth shaft, the smooth shaft and the unthreaded hole are connected in a matched mode through the unthreaded hole, and meanwhile the spindle head is connected with the top end of the body through an inner hexagonal screw. Threaded connection between the main shaft head and the main body is omitted, unthreaded hole matched connection is adopted, the plastic lining is additionally arranged to enable the main shaft head and the main body to be assembled and disassembled smoothly, meanwhile, the inner hexagonal screw is selected for pressing assembly, the length of the upper end of the main body is lengthened, the length of the pressing inner hexagonal screw is moderate, and pressing force and strength are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of offshore oil exploration equipment, in particular to a component of a screw-pressed main shaft head and a main body. Background Art

[0002] Offshore oil exploration equipment generates huge vibration waves, and the seabed structure and material distribution are analyzed by collecting seabed feedback waves. The spindle head and the main body are used to excite and transport high-pressure gas.

[0003] In the existing technology, the spindle head and the main body are assembled by screwing together, and there is a section of stainless steel metal surfaces for fitting, with a gap of only 0.05mm. These two structures are prone to bite between the threads and the metal surfaces when they are slightly deformed after high-pressure vibration. This makes it impossible to remove the main body from the spindle head, affecting subsequent maintenance and repair. Utility Model Content

[0004] In view of the shortcomings existing in the above-mentioned problems, the utility model provides a component for tightening a spindle head and a main body with a screw, so that the threaded connection between the spindle head and the main body is eliminated, a smooth hole matching connection is adopted, and a plastic bushing is added to make the assembly and disassembly of the spindle head and the main body smooth. At the same time, hexagon socket screws are used for tightening and assembling, and the length of the upper end of the main body is lengthened so that the length of the tightening hexagon socket screw is moderate to ensure the clamping force and strength.

[0005] In order to solve the above problems, the utility model provides a screw-compressed spindle head and main body component, comprising a spindle head and a main body, wherein a light hole is arranged at the bottom end of the spindle head, a smooth shaft is arranged at the top end of the main body, the smooth shaft and the light hole are connected by light hole matching, and at the same time, the spindle head is connected to the top end of the main body by a hexagon socket screw.

[0006] Preferably, the hexagon socket screws include a first hexagon socket screw, a second hexagon socket screw and a third hexagon socket screw.

[0007] Preferably, the first hexagon socket screw, the second hexagon socket screw and the third hexagon socket screw are arranged in a finished U-shaped structure.

[0008] Preferably, it further comprises a bushing, the bushing is arranged on the smooth shaft, and the smooth shaft is connected to the light hole through the bushing.

[0009] Compared with the prior art, the utility model has the following advantages:

[0010] The utility model cancels the threaded connection between the spindle head and the main body, adopts a smooth hole matching connection, and adds a plastic bushing to make the assembly and disassembly of the spindle head and the main body smooth. At the same time, hexagon socket screws are selected for compression assembly, and the upper end length of the main body is lengthened so that the length of the compression hexagon socket screws is moderate to ensure the compression force and strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model. DETAILED DESCRIPTION

[0012] In order to make the purpose, technical solutions and advantages of the utility model more clearly understood, the utility model is further described in detail below with reference to the accompanying drawings and examples, but the examples are not intended to limit the utility model.

[0013] like Figure 1 As shown, an embodiment of the utility model includes a spindle head 1 and a main body 2, a light hole is arranged at the bottom end of the spindle head 1, a smooth shaft is arranged at the top end of the main body 2, the smooth shaft and the light hole are connected by light hole matching, and at the same time, the spindle head 1 is connected to the top end of the main body 2 by a hexagon socket screw 3.

[0014] In this embodiment, the hexagon socket screw 3 includes a first hexagon socket screw, a second hexagon socket screw and a third hexagon socket screw, and the first hexagon socket screw, the second hexagon socket screw and the third hexagon socket screw are arranged in a finished product shape.

[0015] In this embodiment, the original structure only has spindle head No. 1 1 and main body No. 2 2, and the spindle head 1 and main body 2 are connected by threads. The utility model changes the connection method, cancels the threaded connection between spindle head No. 1 1 and main body No. 2 2, and uses a smooth hole for spindle head No. 1 1 and a smooth shaft for main body No. 2 2, and adds a bushing No. 4 4. At the same time, three No. 3 hexagonal screws 3 are used to tighten spindle head No. 1 to assemble it on main body No. 2 2. Since the materials of spindle head No. 1 component 1 and main body No. 2 component 2 are both stainless steel, the threaded connection between the stainless steel of spindle head 1 and the stainless steel of main body 2 is easy to bite and cannot be disassembled for maintenance under high-pressure vibration. The utility model cancels the threaded connection, selects a smooth hole matching connection, and adds a bushing 4 made of plastic material No. 4, so that assembly and disassembly are smooth and the difficulty of disassembly is reduced.

[0016] In this embodiment, the size of the main body 2 of part No. 2 assembled in the main shaft of part No. 1 is lengthened, thereby shortening the length of the tightening screw of the hexagonal screw 3 of part No. 3, thereby improving the strength of the equipment and reducing the difficulty of assembly.

[0017] In this embodiment, the No. 3 part is a hexagon socket screw so that the countersunk head can be tightened after assembly.

[0018] In this embodiment, the offshore oil geological exploration equipment needs to generate strong vibration waves to realize geological exploration. The main shaft head and the main body of the screw compression of the present invention are part of the offshore oil geological exploration equipment. The main shaft head and the main body are devices used to excite and transport high-pressure gas. During use, the main shaft head and the main body exposed to the seawater will be slightly deformed due to the strong vibration waves, and the closely matched threads and contact surfaces will be stuck due to the slight deformation and cannot be disassembled.

[0019] In this embodiment, the device eliminates the threaded connection between the spindle head and the main body, adopts a smooth hole connection, and adds a plastic bushing to make the assembly and disassembly of the spindle head and the main body smooth. At the same time, hexagon socket screws are used for compression assembly, and the upper end of the main body is lengthened to make the length of the compression hexagon socket screws moderate to ensure the compression force and strength.

[0020] Through the personnel in this field, all the electrical components in this case are connected to their corresponding power supplies through wires, and a suitable controller should be selected according to the actual situation to meet the control requirements. The specific connection and control sequence should refer to the following working principle, and the electrical connection between the electrical components is completed in the order of working in sequence. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principle and process, and does not explain the electrical control.

[0021] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

[0022] In the description of this specification, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the technical solutions of this patent and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on this patent application.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this patent application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0024] In this specification, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this specification can be understood according to specific circumstances.

[0025] In this specification, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0026] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0027] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A screw-compressed spindle head and body assembly, comprising a spindle head and a body, characterized in that: A light hole is arranged at the bottom end of the spindle head, a smooth shaft is arranged at the top end of the main body, the smooth shaft and the light hole are connected by light hole matching, and at the same time, the spindle head is connected to the top end of the main body by a hexagon socket screw.

2. A screw-compression spindle head and body assembly as claimed in claim 1, characterized in that: The hexagon socket screws include a first hexagon socket screw, a second hexagon socket screw and a third hexagon socket screw.

3. A screw-compression spindle head and body assembly as claimed in claim 2, characterized in that: The first hexagon socket screw, the second hexagon socket screw and the third hexagon socket screw are arranged in a finished U-shaped structure.

4. A screw-compression spindle head and body assembly as claimed in claim 1, characterized in that: It also includes a bushing, which is arranged on the smooth shaft, and the smooth shaft is connected to the light hole through the bushing.

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