CN114992221A

CN114992221A - Wire passing connecting device

Info

Publication number: CN114992221A
Application number: CN202210666321.XA
Authority: CN
Inventors: 杨鹏飞; 康厚清; 胡万利; 谢成梁; 阎家光; 何昭友; 张磊
Original assignee: CCTEG Chongqing Research Institute Co Ltd
Current assignee: CCTEG Chongqing Research Institute Co Ltd
Priority date: 2022-06-13
Filing date: 2022-06-13
Publication date: 2022-09-02
Anticipated expiration: 2042-06-13
Also published as: CN114992221B

Abstract

The invention relates to the technical field of instrument connection, and discloses a wire passing connecting device which comprises a main shaft, wherein a wire passing hole is formed in the axial direction of the main shaft, two limiting mechanisms are detachably connected to the cylindrical surface of the main shaft, and the two limiting mechanisms are arranged on the main shaft in a left-right mode; the spindle is sleeved with two connecting nests which are arranged on the spindle from left to right, the connecting nests are arranged between the two limiting mechanisms, and a threaded part is arranged on one side, close to the limiting mechanisms, of the cylindrical surface of each connecting nest. This scheme can avoid the internal connection line winding alternately to cause the problem of fracture contact failure to appear.

Description

Wire passing connecting device

Technical Field

The invention relates to the technical field of instrument connection, in particular to a wire passing connecting device.

Background

For some drilling instruments, most of the drilling instruments are designed by modules to form instrument nipples with multiple functions, and when the drilling instruments are used specifically, the corresponding instrument nipples need to be connected, so that corresponding functional requirements are met.

The instrument nipple joint of current instrument nipple joint is assembled through the adapter usually, and specific assembling process carries out threaded connection with the adapter that corresponds with the instrument nipple joint of one end earlier, later carries out threaded connection at the instrument nipple joint of rotating adapter and the other end, just so makes and carries out the in-process that docks through the adapter, and the winding condition of cable can appear between the instrument nipple joint, thereby causes the inside cable winding of instrument to cross influence the performance and the reliability that the instrument was equipped.

Disclosure of Invention

The invention aims to provide a wire passing connecting device which can avoid the problem of poor fracture contact caused by winding and crossing of internal connecting wires.

In order to achieve the purpose, the invention adopts the following technical scheme: a wire-passing connecting device comprises a main shaft, wherein a wire-passing hole is formed in the axial direction of the main shaft, two limiting mechanisms are detachably connected to the cylindrical surface of the main shaft, and the two limiting mechanisms are arranged on the main shaft in a left-right mode; the spindle is sleeved with two connecting nests which are arranged on the spindle from left to right, the connecting nests are arranged between the two limiting mechanisms, and a threaded part is arranged on one side, close to the limiting mechanisms, of the cylindrical surface of each connecting nest.

The principle and the advantages of the scheme are as follows: in the scheme, the wire passing connecting device comprises a main shaft, a limiting mechanism and a connecting nest, wherein a wire passing hole is formed in the axial direction of the main shaft, so that a cable in the short section can pass through the connecting nest when the short section is connected, meanwhile, the connecting nest is sleeved on the main shaft from left to right, in order to limit the movement of the connecting nest and avoid the separation of the connecting nest, the corresponding limiting mechanism is detachably connected on the cylindrical surface of the main shaft on the two sides of the connecting nest, a threaded part is arranged on one side, close to the limiting mechanism, of the cylindrical surface of the connecting nest, the threaded part is arranged to be in threaded connection with the thread of the short section, so that the connection between the short section and the connecting nest is realized, when the short section is specifically connected, the connecting nest is sleeved on the main shaft, so that the connecting nest can rotate relative to the main shaft, and only the short section needs to be fixed when the short section is connected, then rotate connect nested can, all carry out the nipple joint installation with the left and right sides like this, can not produce relative rotation between two nipple joints all the time to cause the inside cable of nipple joint to take place to distort winding problem and appear, realized the high-speed joint between the nipple joint, can avoid inside connecting wire winding alternately simultaneously, thereby cause the problem of fracture contact failure to appear.

Preferably, as an improvement, the limiting mechanism comprises a retainer ring groove, a second seal ring and a retainer ring; the stop ring groove is arranged along the cylindrical surface of the main shaft, the stop ring is semicircular, the stop ring is arranged on the stop ring groove, the depth of the stop ring groove is smaller than the thickness of the stop ring, and the second seal ring fixes the stop ring on the stop ring groove.

The retaining ring sets up on the retainer ring groove, the thickness of retaining ring is greater than the degree of depth in retainer ring groove simultaneously, make the retaining ring still can have the part to stretch out the retainer ring groove when placing the retainer ring inslot like this, and this part that stretches out will block connecting nested removal, thereby realize connecting nested limiting displacement, simultaneously in order to make the limit function of retaining ring more firm, utilize the second sealing washer to fix the retaining ring on the retainer ring groove, make the retaining ring tightly fixed unable removal on the retainer ring groove, just also more firm to connecting nested limiting displacement.

Preferably, as an improvement, the number of the check rings in the limiting mechanism is two, and the check rings are symmetrically distributed along the central axis of the main shaft.

The number of the check rings is two, so that the connection nesting can be more comprehensively limited. If only one check ring is arranged, when the check ring limits the connecting nesting, only one part of the connecting nesting can be stressed to be blocked, and when the connecting nesting is stressed by a larger force, one check ring is difficult to hold, so that the two check rings are arranged, the check rings can block the end surfaces of the connecting nesting, and the corresponding blocking effect is better.

Preferably, as an improvement, a cylindrical surface of the retainer ring is provided with a second seal groove for assembling a second seal ring.

The second sealing ring can not move back and forth when being fixed to the check ring due to the arrangement of the second sealing groove, namely the second sealing groove limits the second sealing ring, so that the fixing effect of the check ring is better.

Preferably, as a refinement, the cylindrical surface of the connection nest is provided with a guide between the threaded portion and the collar.

The arrangement of the guide part enables the connection nesting to be smoother and quicker when the connection nesting is carried out with the short section.

Preferably, as a modification, a wrench fastening hole is provided on a side of the coupling insert away from the threaded portion.

The wrench fastening hole is arranged to enable connection to be more firm when connection between the connecting nest and the short section is conducted.

Preferably, as an improvement, the sealing device further comprises a first sealing groove and a first sealing ring; the first sealing groove is arranged on the cylindrical surface of the main shaft and is positioned at the position where the connecting nesting sleeve is arranged, and the first sealing ring is sleeved on the first sealing groove.

The arrangement position of the first sealing groove is the position where the connecting nesting sleeve is arranged, so that the connecting nesting sleeve and the main shaft can be sealed when the first sealing ring is sleeved in the first sealing groove, the cable in the main shaft is prevented from being polluted, and the sealing performance and the safety of the whole device are greatly improved.

Drawings

Fig. 1 is a schematic overall structure diagram of a wire connection device according to an embodiment of the present invention.

Fig. 2 is a sectional view of a spindle according to an embodiment of the invention.

Fig. 3 is a cross-sectional view of a connecting nest according to one embodiment of the invention.

Detailed Description

The following is further detailed by way of specific embodiments:

the reference numbers in the drawings of the specification include: the main shaft 1, the wire through hole 10, the retainer groove 11, the first sealing groove 12, the connecting nest 2, the guide part 20, the threaded part 21, the wrench fastening hole 22, the retainer ring 3 and the second sealing ring 4.

The embodiment is substantially as shown in figures 1, 2 and 3 of the accompanying drawings: a wire-passing connecting device comprises a main shaft 1, wherein a wire-passing hole 10 is formed in the axial direction of the main shaft 1, two limiting mechanisms are detachably connected to the cylindrical surface of the main shaft 1, and the two limiting mechanisms are arranged on the main shaft 1 in a left-right mode; in this embodiment, the limiting mechanism includes a retainer groove 11, a second seal ring 4 and a retainer ring 3, the retainer groove 11 is disposed along the cylindrical surface of the main shaft 1, and the retainer groove 11 is formed along a circle around the main shaft 1 in this embodiment. Meanwhile, the number of the retaining rings 3 is two, and the two retaining rings 3 are semicircular, so that the spindle 1 can be just wrapped when the two retaining rings 3 are placed in the retaining ring groove 11. The depth of the retainer ring groove 11 is smaller than the thickness of the retainer ring 3, and meanwhile, the thickness of the portion, corresponding to the portion, extending out of the retainer ring groove 11, of the retainer ring 3 is slightly smaller than the thickness of the connecting nest 2, so that the blocking effect of the retainer ring 3 on the connecting nest 2 is good. Meanwhile, a second sealing groove is formed in the cylindrical surface of the retainer ring 3, so that the second sealing ring 4 can be assembled in the second sealing groove, and the retainer ring 3 is fixed by the second sealing ring 4.

The main shaft 1 is sleeved with two connecting nests 2 which are arranged on the main shaft 1 from left to right, the connecting nests 2 are arranged between the two limiting mechanisms, and a threaded part 21 is arranged on one side, close to the limiting mechanisms, of the cylindrical surface of the connecting nests 2.

In the present exemplary embodiment, the cylindrical surface of the connecting sleeve 2 is provided on the side adjacent to the threaded portion 21 with a threaded portion 21, wherein the thread of the threaded portion 21 is directed outwards. Meanwhile, in order to ensure that the nipple is connected with the threaded part 21 of the connecting nest 2 more smoothly and quickly, a guide part 20 is also arranged on the cylindrical surface of the connecting nest 2, and the guide part 20 is arranged between the threaded part 21 and the retainer ring 3. In order to secure the connection nest 2 to the main shaft 1 more firmly, the connection nest 2 is also secured to the connection nest 2 by a third sealing ring.

In order to make the screw connection on the screw part 21 of the connecting nest 2 more firm, a wrench fastening hole 22 is also arranged on the cylindrical surface of the connecting nest 2.

In order to ensure that the corresponding tightness of the connecting nest 2 is better when the connecting nest is sleeved on the main shaft 1 and prevent the cable at the wire passing hole 10 in the main shaft 1 from being polluted, a first sealing groove 12 is formed on the cylindrical surface of the main shaft 1, a corresponding sealing ring is sleeved on the first sealing groove 12, and the position where the connecting nest 2 is sleeved is arranged on the first sealing groove 12. In this embodiment, the first sealing groove 12 is also formed along a circle of the main shaft 1, the first sealing ring is annular, and the first sealing ring can be just sleeved on the first sealing groove 12, and the connecting nest 2 is in close contact with the first sealing ring. In this embodiment, the number of the first seal grooves 12 and the number of the first seal rings are two, and the two first seal grooves and the two first seal rings are respectively in one-to-one correspondence with the two corresponding connecting nests 2.

The specific assembly process is as follows: firstly, corresponding first sealing rings are respectively assembled on two first sealing grooves 12 on a main shaft 1, then two corresponding connecting nests 2 are sleeved on the main shaft 1, so that the two connecting nests 2 respectively form sealing with the corresponding first sealing rings, when in assembly, a thread part 21 of the connecting nests 2 is outwards arranged, then the corresponding connecting nests 2 are respectively limited on second sealing grooves on the left side and the right side of the connecting nests 2 through two semicircular retaining rings 3, at the moment, the two semicircular retaining rings 3 can form a circular limiter, and then the circular limiter is fixed by utilizing the second sealing rings 4. When the nipple joint that needs the assembly to correspond, directly utilize two screw thread portions 21 on connecting nestification 2 and the inside screw thread of nipple joint to carry out threaded connection, later carry out the screw thread fastening through spanner fastening hole 22, this in-process only need fix the nipple joint, rotate connect nestification 2 can, this just makes at the in-process of whole assembly, middle main shaft 1, the nipple joint at both ends and its inside part do not rotate, only connect nestification 2 and rotate and realize being connected between the two.

The foregoing is merely an example of the present invention and common general knowledge in the art of designing and/or characterizing particular aspects and/or features is not described in any greater detail herein. It should be noted that, for those skilled in the art, without departing from the technical solution of the present invention, several variations and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. A wire passing connecting device is characterized in that: the wire guide device comprises a main shaft, wherein a wire guide hole is formed in the axial direction of the main shaft, two limiting mechanisms are detachably connected to the cylindrical surface of the main shaft, and the two limiting mechanisms are arranged on the main shaft in a left-right mode; the spindle is sleeved with two connecting nests which are arranged on the spindle in the left-right direction, the connecting nests are arranged between the two limiting mechanisms, and a threaded portion is arranged on one side, close to the limiting mechanisms, of the cylindrical surface of each connecting nest.

2. The wire passing connecting device according to claim 1, wherein: the limiting mechanism comprises a retainer ring groove, a second sealing ring and a retainer ring; the stop ring groove is arranged along the cylindrical surface of the main shaft, the stop ring is semicircular, the stop ring is arranged on the stop ring groove, the depth of the stop ring groove is smaller than the thickness of the stop ring, and the second seal ring fixes the stop ring on the stop ring groove.

3. The wire passing connection device of claim 2, wherein: the number of the check rings in the limiting mechanism is two, and the check rings are symmetrically distributed along the central axis of the main shaft.

4. The wire passing connection device of claim 3, wherein: and a second sealing groove for assembling a second sealing ring is formed in the cylindrical surface of the check ring.

5. The wire passing connecting device according to claim 4, wherein: and a guide part is arranged on the cylindrical surface of the connecting and nesting part and is arranged between the threaded part and the retainer ring.

6. The wire passing connection device of claim 5, wherein: and a wrench fastening hole is arranged on one side of the connecting embedded sleeve far away from the threaded part.

7. The wire passing connection device of claim 6, wherein: the sealing structure also comprises a first sealing groove and a first sealing ring; the first sealing groove is arranged on the cylindrical surface of the main shaft and is positioned at the position where the connecting nesting sleeve is arranged, and the first sealing ring is sleeved on the first sealing groove.