Line nipple mounting framework assembly of logging instrument

Abstract

The invention relates to the technical field of logging equipment, in particular to a logging instrument line pup joint installation framework assembly which comprises a framework body, a centralizing ring, a pressing strip, a wiring groove and a wiring cover plate, the framework body is provided with an installation plane and the wiring groove, the centralizing ring is arranged on the framework body, the installation plane is used for installing a circuit board, the pressing strip is pressed on the circuit board, and the wiring cover plate is arranged on the wiring groove. The pressing strip is connected with the framework body; the wiring groove is arranged in the middle of the framework body in a long strip shape, the wiring groove is used for installing an electrical connecting wire, and the wiring cover plate covers the wiring groove. Compared with the prior art, due to the fact that the installation mode of the circuit board is changed, the material removal amount of the framework is reduced in the machining process, the overall strength of the framework is improved, meanwhile, the centralizing ring is additionally arranged in the middle of the framework, the installation mode of the circuit board is changed into the pressing strip installation mode, and the overall anti-seismic performance is greatly improved. The wiring mode is changed from the original two-side wiring mode to the middle wiring mode, so that the assembly and the maintenance are more convenient.

Description

Technical Field

[0001] The invention relates to the technical field of well logging equipment, in particular to a well logging instrument line short section installation skeleton assembly. Background Art

[0002] Well logging instruments are needed in many fields such as oil field exploration and exploitation, engineering geophysical exploration, etc., and each well logging instrument basically consists of two parts. One part is the probe short section, which mainly includes various signal transmitting and receiving detection devices, such as sound wave transmitting and receiving crystals made of piezoelectric ceramics, induction coils for transmitting and receiving electromagnetic fields, etc. The other part is the electronic circuit short section, which is used to install electronic components such as circuit boards that control the transmission and reception of detection device signals, circuit boards and electronic components that provide power for detection devices, and circuit boards for signal transmission. These electronic components will be installed on a skeleton and then placed in a shell to form an electronic circuit short section. The two ends of the electronic circuit short section are connected to other parts of the instrument itself (including but not only the probe part), or connected to other instruments to form a logging instrument string to meet the relevant needs of well logging.

[0003] Since the logging instrument needs to meet relevant vibration requirements when working underground and during the transportation of the instrument, it is necessary to install electronic components such as circuit boards reliably. The installation structure can provide better shock absorption effect and reduce the impact of vibration. At the same time, there are many connections between each circuit board and electronic components, so the installation frame is also required to make the operation easier during assembly. The existing installation frame structure (such as Figure 1 (As shown) When the size is large, the seismic performance is not good enough and the wiring is inconvenient during installation. Summary of the invention

[0004] In view of the problems that the installation frame of the prior art has poor seismic performance due to its large size and is inconvenient for wiring, the present invention provides a logging instrument line short section installation frame assembly, which can improve the overall seismic performance of the electronic circuit short section, the reliability of circuit board installation, and reduce the difficulty of installation and wiring.

[0005] The present invention is achieved through the following technical solutions:

[0006] A logging instrument line short section installation skeleton assembly comprises: a skeleton body, a straightening ring, a pressure strip, a wiring groove and a wiring cover plate. The skeleton body is provided with a mounting plane and a wiring groove. The straightening ring is arranged on the skeleton body. The mounting plane is used for installing a circuit board. The pressure strip is pressed on the circuit board and connected to the skeleton body. The wiring groove is arranged in a long strip in the middle of the skeleton body. The wiring groove is used for installing electrical connection lines. The wiring cover plate covers the wiring groove.

[0007] Preferably, the skeleton body is provided with a body wire passing hole, and the wiring cover plate is also provided with a cover plate wire passing hole, and the electrical connection wire passes through the wire passing hole or the cover plate wire passing hole to be connected with other components.

[0008] Preferably, at least one righting ring is provided.

[0009] Preferably, the straightening ring comprises a straightening and anti-friction ring, a shock-absorbing rubber ring and a straightening mounting seat, the straightening mounting seat is connected to the skeleton body, the shock-absorbing rubber ring is mounted on the straightening mounting seat, and the straightening and anti-friction ring is mounted outside the shock-absorbing rubber ring.

[0010] Preferably, a straightening installation groove is provided on the skeleton body, and the straightening installation seat is installed in the straightening installation groove.

[0011] Preferably, the straightening mounting seat is composed of a plurality of arc-shaped split structures.

[0012] Preferably, an inclined cutout is provided on the straightening and friction reducing ring.

[0013] Preferably, a limiting groove is provided inside the straightening and anti-friction ring, and the limiting groove cooperates with the outside of the straightening mounting seat.

[0014] Preferably, during assembly, the logging instrument line short section mounting skeleton assembly is connected to the upper connection socket and the lower joint respectively through the upper connection screws and the lower connection screws, and then the whole assembly is installed in the electronic circuit short section housing.

[0015] Preferably, during logging, the upper end of the electronic circuit short section is mechanically connected to the upper end instrument through the upper end connecting threaded ring, and is electrically connected to the upper end instrument through the upper end connecting socket; the lower end of the electronic circuit short section is connected to the lower joint through the lower end threaded ring and the lower end sealing ring, and the lower joint is connected to the lower end instrument or probe.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The present invention provides a logging instrument line short section installation frame. Due to the change in the circuit board installation method, the material removal amount of the frame is reduced during processing, thereby improving the overall strength of the frame. At the same time, a straightening ring is added in the middle of the frame, and the circuit board installation method is changed to a pressure strip installation, which greatly improves the overall anti-seismic performance. The wiring method is changed from the original two-side wiring to the middle wiring, which is more convenient for assembly and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of an electronic circuit short section mounting skeleton assembly according to an embodiment of the present invention;

[0019] Figure 2 A plan view of an electronic circuit short section mounting skeleton assembly according to an embodiment of the present invention;

[0020] Figure 3 A cross-sectional view of an electronic circuit short section mounting skeleton assembly according to an embodiment of the present invention;

[0021] Figure 4 A three-dimensional diagram of an electronic circuit short section installation skeleton body according to an embodiment of the present invention;

[0022] Figure 5 A three-dimensional diagram of a wire slot cover plate of an electronic circuit short section installation skeleton body according to an embodiment of the present invention;

[0023] Figure 6 A three-dimensional diagram of a circuit board press strip installed on a skeleton of an electronic circuit short section according to an embodiment of the present invention;

[0024] Figure 7 A stereoscopic diagram of a framework straightening and anti-friction ring for installing an electronic circuit short section according to an embodiment of the present invention;

[0025] Figure 8 It is a front view of an electronic circuit short section mounting frame straightening mounting seat according to an embodiment of the present invention;

[0026] Fig. 9 It is a left view of an electronic circuit short section mounting frame straightening mounting seat according to an embodiment of the present invention;

[0027] Fig.10 A top view of an electronic circuit short section mounting frame straightening mounting seat according to an embodiment of the present invention;

[0028] Fig.11 A schematic diagram of the use of an electronic circuit short section according to an embodiment of the present invention;

[0029] Fig.12 A schematic diagram of a three-dimensional structure of an electronic circuit short section according to an embodiment of the present invention;

[0030] Fig.13 The figure is a cross-sectional view of a short section of an electronic circuit according to an embodiment of the present invention.

[0031] In the figure, 1, electronic circuit short section; 12, upper instrument; 13, lower instrument; 21, electronic circuit short section housing; 22, upper connection thread ring; 23, lower joint; 24, lower sealing ring; 25, upper sealing ring; 26, upper connection socket; 27, circuit short section mounting frame; 28, lower thread ring; 29, upper connection screw; 210, lower connection screw; 31, mounting frame body; 32, wire slot cover; 33, circuit board pressure strip; 34, straightening and anti-friction ring; 35, shock-absorbing rubber ring; 36, straightening mounting seat; 37, cover mounting screw; 38, circuit Plate; 39, circuit board pressure strip mounting screws; 310, straightening mounting seat mounting screws; 41, frame upper end connecting hole; 42, wire groove; 43, cover plate mounting plane; 44, cover plate mounting hole; 45, circuit board mounting plane; 46, first circuit board pressure strip mounting hole; 47, straightening ring mounting groove; 48, fixing hole; 49, body wire hole; 410, frame lower end connecting hole; 51, cover plate mounting hole; 52, cover plate wire hole; 61, second circuit board pressure strip mounting hole; 71, cutout; 72, limit groove; 81, mounting groove; 82, fixed mounting hole; 83, dividing groove. DETAILED DESCRIPTION

[0032] The present invention is further described in detail below in conjunction with specific embodiments, which are intended to explain the present invention rather than to limit it.

[0033] The embodiment of the present invention discloses an electronic circuit short section mounting frame. Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 The figure is a schematic diagram of the assembly of the electronic circuit short section mounting frame assembly, which illustrates the specific assembly method of the mounting frame. The electrical connection wire passes through the mounting frame body 31 through the wire groove 42, and then the cover plate mounting screws 37 are screwed on the cover plate mounting hole 51 to fix the wire groove cover plate 32 on the cover plate mounting plane 43. If there are electrical connection wires that need to be connected to the circuit board or other components on the assembly, they pass through the body wire hole 49 set on the mounting frame body 31 or the cover plate wire hole 52 set on the wire groove cover plate 32. The mounting frame body is also provided with a frame upper end connection hole 41 and a frame lower end connection hole 410.

[0034] Reference Figure 6 , the circuit board 38 is placed on the circuit board mounting plane 45, and the circuit board pressure strip 33 is pressed onto the circuit board 38. In this embodiment, a second circuit board pressure strip hole 61 is opened on the circuit board pressure strip 33, and finally the circuit board pressure strip mounting screw 39 is passed through the second circuit board pressure strip hole 61 and screwed into the first circuit board pressure strip mounting hole 46 on the circuit board mounting plane 45, so that the circuit board 38 is fixed on the mounting frame body 31.

[0035] Reference Figure 7 , 8 9. The installation of the straightening ring is after the rest of the assembly is completed. First, the straightening mounting seat 36 is installed on the straightening ring mounting groove 47 of the mounting frame body 31, the straightening mounting seat mounting screw 310 is screwed into the straightening mounting seat fixing hole 48, the straightening mounting seat 36 is fixed through the straightening mounting seat fixing hole 82, and then the rubber damping ring 35 is inserted into the mounting groove 81, and finally the straightening and anti-friction ring 34 is installed. The straightening and anti-friction ring is provided with a limit groove 72 to ensure that it is fixed on the straightening mounting seat 36.

[0036] Reference Figure 7 To facilitate assembly, a centering and wear-reducing ring cutout 71 is provided on the centering and wear-reducing ring 34.

[0037] Reference Figure 8 , 9 10. The straightening mounting seat 36 is divided into two semi-arc structures by a dividing groove 83. Two fixing ear plates are provided on the semi-arc structure. The fixing ear plates are provided with fixing mounting holes 82 for connecting with the mounting frame body 31 to facilitate installation.

[0038] Fig.11 , Fig.12 , Fig.13 This is a schematic diagram of the use of an electronic circuit pup joint according to an embodiment of the present invention, which can briefly illustrate the assembly relationship of the circuit pup joint mounting frame in the electronic circuit pup joint and the connection method of the electronic circuit pup joint in the logging instrument.

[0039] The circuit short section mounting frame 27 is fixed and connected at the upper and lower ends by upper connecting screws 29 and lower connecting screws 210. After the circuit short section mounting frame assembly is assembled with the upper end connecting socket 26 and the lower connector 23 as a whole, it is installed in the electronic circuit short section housing 21.

[0040] During the logging process, the upper end of the electronic circuit short section 11 is mechanically connected to the upper end instrument 12 (or probe) through the upper end connecting threaded ring 22, and is electrically connected to the upper end instrument 12 (or probe) through the upper end connecting socket 26, and is sealed through the upper end sealing ring 25; the lower end of the electronic circuit short section 11 is connected and sealed to the lower joint 23 through the lower end threaded ring 28 and the lower end sealing ring 24, and then the lower joint 23 is connected to the lower end instrument 13 or probe.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to impose any limitation on the technical solution of the present invention. Those skilled in the art should understand that, without departing from the spirit and principles of the present invention, the technical solution can also be subjected to several simple modifications and substitutions, and these modifications and substitutions are also within the scope of protection covered by the claims.

Claims

1. A logging instrument line short section installation skeleton assembly, characterized in that: include: A skeleton body, a straightening ring, a pressure strip, a wiring groove and a wiring cover plate, wherein the skeleton body is provided with a mounting plane and a wiring groove, the straightening ring is provided on the skeleton body, the mounting plane is used for mounting a circuit board (38), the pressure strip is pressed on the circuit board (38), and the pressure strip is connected to the skeleton body; the wiring groove is arranged in a long strip in the middle of the skeleton body, the wiring groove is used for mounting electrical connection lines, and the wiring cover plate covers the wiring groove.

2. The logging instrument line short section installation skeleton assembly according to claim 1, characterized in that: The skeleton body is provided with a body wire hole (49), and the wiring cover plate is also provided with a cover plate wire hole (52). The electrical connection wire passes through the wire hole or the cover plate wire hole (52) to connect with other components.

3. The logging instrument line short section installation skeleton assembly according to claim 1, characterized in that: At least one righting ring is provided.

4. The logging instrument line short section installation skeleton assembly according to claim 1, characterized in that: The straightening ring comprises a straightening and wear-reducing ring (34), a shock-absorbing rubber ring (35), and a straightening and mounting seat (36). The straightening and mounting seat (36) is connected to the skeleton body, the shock-absorbing rubber ring (35) is mounted on the straightening and mounting seat (36), and the straightening and wear-reducing ring (34) is mounted on the outer side of the shock-absorbing rubber ring (35).

5. The logging instrument line short section installation skeleton assembly according to claim 4, characterized in that: A straightening installation groove (81) is provided on the frame body, and the straightening installation seat (36) is installed in the straightening installation groove (81).

6. The logging instrument line short section installation skeleton assembly according to claim 4, characterized in that: The straightening mounting seat (36) is composed of a plurality of arc-shaped split structures.

7. The logging instrument line short section installation skeleton assembly according to claim 4, characterized in that: An inclined cutout (71) is provided on the straightening and wear-reducing ring (34).

8. The logging instrument line short section installation skeleton assembly according to claim 1, characterized in that: A limiting groove (72) is provided inside the centralizing and anti-friction ring (34), and the limiting groove (72) is matched with the outside of the centralizing and mounting seat (36).

9. The logging instrument line short section installation skeleton assembly according to claim 1, characterized in that: During assembly, the logging instrument line short section mounting frame assembly is connected to the upper connection socket (26) and the lower connector (23) respectively through the upper connection screws (29) and the lower connection screws (210), and then the whole assembly is installed in the housing of the electronic circuit short section (1).

10. The logging instrument line short section installation skeleton assembly according to claim 1, characterized in that: During well logging, the upper end of the electronic circuit short section (1) is mechanically connected to the upper end instrument (12) through the upper end connecting threaded ring (22), and is electrically connected to the upper end instrument (12) through the upper end connecting socket (26); the lower end of the electronic circuit short section (1) is connected to the lower joint (23) through the lower end threaded ring (28) and the lower end sealing ring (24), and the lower joint (23) is connected to the lower end instrument (13) or the probe.

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