CN212898392U

CN212898392U - Underground steel cable cutting device for observation

Info

Publication number: CN212898392U
Application number: CN202022067256.8U
Authority: CN
Inventors: 郭春生; 关冬晓; 李晓东
Original assignee: Seismological Bureau Of Xinjiang Uygur Autonomous Region
Current assignee: Seismological Bureau Of Xinjiang Uygur Autonomous Region
Priority date: 2020-09-18
Filing date: 2020-09-18
Publication date: 2021-04-06
Anticipated expiration: 2030-09-18

Abstract

The utility model discloses a cable wire cutting device for observing in pit, including traction plate, two guide bars, a plurality of movable balancing weight, cutter mount pad, annular cable wire sword, stay cord and base. The steel cable cutting device for observing underground uses a pull rope to pull up a cutter mounting seat, so that the cutter mounting seat 5 has a certain height to generate downward impact force; the circumferential surface of the boss is attached to the inner side surface of the annular steel cable cutter, so that the requirement of steel cable cutting is met; the downward impact force of the cutter mounting seat 5 can be adjusted according to steel cables with different thicknesses by utilizing a plurality of movable balancing weights; utilize fixing bolt and clamping nut's cooperation, realized the vertical clamp of a plurality of movable balancing weights, prevent to drop.

Description

Underground steel cable cutting device for observation

Technical Field

The utility model relates to a cutter of cutting cable wire, especially a cable wire cutting device for observing in pit.

Background

At present, in the process of lifting and lowering an instrument through a steel cable in the production well logging or testing process, due to the well conditions or construction operation and other reasons, the instrument is difficult to pull up under the condition of jamming, the steel cable left in a shaft can hinder the construction, and the condition brings difficulty to the later fishing operation.

Disclosure of Invention

Utility model purpose: the underground steel cable cutting device for observation can meet the underground cutting requirements of steel cables with different thicknesses.

The technical scheme is as follows: the utility model provides a cable wire cutting device for observing underground, which comprises a traction plate, two guide rods, a plurality of movable balancing weights, a cutter mounting seat, an annular cable wire cutter, a pull rope and a base; one end of each guide rod is respectively fixed on the left side and the right side of the lower side surface of the traction plate; a strip hole is arranged in the middle of the movable balancing weight; a rectangular guide hole is vertically formed in each of the left side and the right side of the cutter mounting seat; a fixing bolt is arranged in the middle of the lower side surface of the cutter mounting seat; the upper end of the fixing bolt sequentially penetrates through the cutter mounting seat and the plurality of strip holes and then extends out; the extended end of the fixed bolt is sequentially provided with a clamping nut and a pull ring fixing plate in a threaded manner from bottom to top; a U-shaped pull ring is fixed on the pull ring fixing plate; one end of the pull rope is fixed on the U-shaped pull ring; a boss is arranged on the upper side surface of the base; the other ends of the two guide rods respectively penetrate through the strip holes of the movable balancing weights and the rectangular guide holes in sequence and then are fixed on the upper side surface of the boss; the annular steel wire cutter is arranged on the lower side surface of the cutter mounting seat, and the circumferential surface of the boss is attached to the inner side surface of the annular steel wire cutter; a wiring hole which penetrates through the base is vertically arranged on the boss.

Furthermore, four guide rollers are arranged inside the two rectangular guide holes; the surface of each guide roller is attached to a guide rod; two of the four guide rollers are a group, two groups of guide rollers are respectively arranged at the upper end and the lower end in the rectangular guide hole, and the two groups of guide rollers clamp the guide rod.

Furthermore, the movable balancing weight is composed of a tenon half disc and a mortise half disc; a tenon is arranged on the tenon half disc; a tenon hole is arranged on the tenon hole half disc; the tenon is buckled in the tenon hole.

Furthermore, the lower side surfaces of the tenon half disc and the mortise hole half disc are respectively provided with a positioning bolt; the upper side surfaces of the tenon half disc, the mortise hole half disc and the cutter mounting seat are respectively provided with a bolt hole for inserting a positioning bolt.

Furthermore, a locknut is arranged at the extending end of the fixing bolt and is positioned above the pull ring fixing plate.

Furthermore, a traction hole is arranged in the middle of the traction plate; a traction rope is arranged on the traction hole.

Compared with the prior art, the utility model, its beneficial effect is: the tool mounting seat is pulled up by the pull rope, so that the tool mounting seat 5 has a certain height to generate downward impact force; the circumferential surface of the boss is attached to the inner side surface of the annular steel cable cutter, so that the requirement of steel cable cutting is met; the downward impact force of the cutter mounting seat 5 can be adjusted according to steel cables with different thicknesses by utilizing a plurality of movable balancing weights; utilize fixing bolt and clamping nut's cooperation, realized the vertical clamp of a plurality of movable balancing weights, prevent to drop.

Drawings

Fig. 1 is a schematic view of the installation of the present invention;

fig. 2 is a bottom view of the tool mounting seat of the present invention;

fig. 3 is a top view of the base of the present invention;

fig. 4 is a schematic view of the movable weight of the present invention.

Detailed Description

The technical solution of the present invention will be described in detail with reference to the accompanying drawings, but the scope of the present invention is not limited to the embodiments.

Example 1:

as shown in fig. 1-4, the utility model provides a cable wire cutting device for observing in pit includes: the device comprises a traction plate 1, two guide rods 3, a plurality of movable balancing weights 4, a cutter mounting seat 5, an annular steel wire rope cutter 6, a pull rope 22 and a base 7;

one end of each guide rod 3 is respectively fixed on the left side and the right side of the lower side surface of the traction plate 1; a long hole 17 is arranged in the middle of the movable balancing weight 4; a rectangular guide hole 20 is vertically arranged on each of the left side and the right side of the cutter mounting seat 5; a fixing bolt 12 is arranged in the middle of the lower side surface of the cutter mounting seat 5; the upper end of the fixing bolt 12 sequentially penetrates through the cutter mounting seat 5 and the plurality of strip holes 17 and then extends out; the extended end of the fixed bolt 12 is sequentially provided with a clamping nut 21 and a pull ring fixing plate 16 in a threaded manner from bottom to top; a U-shaped pull ring 10 is fixed on the pull ring fixing plate 16; one end of the pull rope 22 is fixed on the U-shaped pull ring 10; a boss 8 is arranged on the upper side surface of the base 7; the other ends of the two guide rods 3 respectively penetrate through the strip holes 17 and the rectangular guide holes 20 of the movable balancing weights 4 in sequence and then are fixed on the upper side surface of the boss 8; the annular steel wire rope cutter 6 is arranged on the lower side surface of the cutter mounting seat 5, and the circumferential surface of the boss 8 is attached to the inner side surface of the annular steel wire rope cutter 6; a wiring hole 9 which penetrates through the base 7 is vertically arranged on the boss 8.

The tool mount 5 is pulled up by the pull cord 22 so that the tool mount 5 has a certain height to generate a downward impact force; the circumferential surface of the boss 8 is attached to the inner side surface of the annular steel cable cutter 6, so that the requirement of steel cable shearing is met; the downward impact force of the cutter mounting seat 5 can be adjusted according to steel cables with different thicknesses by utilizing the movable balancing weights 4; the longitudinal clamping of the movable balancing weights 4 is realized by the matching of the fixing bolt 12 and the clamping nut 21, and the falling-off is prevented.

Further, four guide rollers 13 are arranged inside the two rectangular guide holes 20; the roller surface of each guide roller 13 is attached to the guide rod 3; two of the four guide rollers 13 are a group, two groups of guide rollers 13 are respectively arranged at the upper end and the lower end of the rectangular guide hole 20, and the two groups of guide rollers 13 clamp the guide rod 3. The guide roller 13 is used for converting the sliding friction between the original guide rod 3 and the rectangular guide hole 20 into rolling friction to reduce the resistance; the horizontal moving range of the guide rod 3 is limited by adhering the guide roller 13 to the guide rod 3, and the accuracy of the annular steel wire rope cutter 6 is improved.

Furthermore, the movable balancing weight 4 is composed of a tenon half disc 19 and a mortise half disc 18; a tenon is arranged on the tenon half disc 19; a mortise is arranged on the mortise half disc 18; the tenon is buckled in the tenon hole. The tenon and the mortise are matched so as to ensure that the tenon half disc 19 and the mortise half disc 18 are firmly buckled.

Furthermore, a positioning bolt 15 is arranged on the lower side surfaces of the tenon half disc 19 and the mortise half disc 18; the tenon half disc 19, the mortise half disc 18, and the upper side of the tool mounting base 5 are each provided with a bolt hole 14 for insertion of the positioning bolt 15. The cooperation of the positioning pin 15 and the pin hole 14 ensures that the movable balancing weight 4 does not slide transversely when being installed.

Further, a locknut 11 is provided at the protruding end of the fixing bolt 12, and the locknut 11 is located above the tab fixing plate 16. The pull ring fixing plate 16 is mechanically prevented from loosening by the locknut 11, so that the slide thread of the pull ring fixing plate 16 is prevented from loosening.

Furthermore, a traction hole 2 is arranged in the middle of the traction plate 1; a traction rope 23 is arranged on the traction hole 2. The steel cable cutting device used for observing underground is placed underground by utilizing the traction rope 23 to be arranged on the traction hole 2.

The utility model provides a cable wire cutting device for observing in pit when installing and using, confirm the thickness of the cable wire of will cutting earlier, then select the movable balancing weight 4 of corresponding quantity, insert the location bolt 15 of mortise half disc 18 in one bolt hole 14 of cutter mount pad 5, then insert the location bolt 15 of tenon half disc 19 in another bolt hole 14 of cutter mount pad 5, and the tenon buckle is in the mortise; then, the rest movable balancing weights 4 are arranged above the previous movable balancing weight 4 one by one in the same way; then, the upper end of the fixed bolt 12 penetrates through the cutter mounting seat 5 and the plurality of movable balancing weights 4, then the clamping nut 21 is screwed at the upper end of the fixed bolt 12, and the lower surface of the clamping nut 21 is tightly attached to the upper surface of the uppermost movable balancing weight 4; then screwing the pull ring fixing plate 16 at the upper end of the fixing bolt 12 in a threaded manner, screwing the locknut 11 at the upper end of the fixing bolt 12 in a threaded manner, and tightly attaching the lower side surface of the locknut 11 to the upper side surface of the pull ring fixing plate 16; finally, one end of the pulling rope 22 is fixed on the U-shaped pulling ring 10, and one end of the pulling rope 23 is fixed on the pulling hole 2.

When the underground steel cable cutting device for observing is used underground, one end of a steel cable to be cut penetrates out of the wire passing hole 9 from bottom to top, then the steel cable is pulled, then the underground steel cable cutting device for observing is vertically placed into the bottom of a well through the pull rope 22 and the pull rope 23, and then the pull rope 22 is pulled upwards until the U-shaped pull ring 10 touches the pull plate 1; then the stay cord 22 is loosened to enable the cutter mounting seat 5 to fall freely, the annular steel cable cutter 6 falls along with the cutter mounting seat 5, and shearing force is generated when the inner side surface of the annular steel cable cutter 6 is attached to the circumferential side surface of the boss 8, so that the steel cable is cut off; finally the wireline cutting device for inspection downhole is pulled out of the well by means of the pull-cord 22 and the pull-cord 23, and the cut wireline is pulled out of the well.

As mentioned above, although the present invention has been shown and described with reference to certain preferred embodiments, it should not be construed as limiting the invention itself. Various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A wireline cutting apparatus for use downhole in an observation well, comprising: comprises a traction plate (1), two guide rods (3), a plurality of movable balancing weights (4), a cutter mounting seat (5), an annular steel wire cutter (6), a pull rope (22) and a base (7);

one end of each guide rod (3) is respectively fixed on the left side and the right side of the lower side surface of the traction plate (1); a long hole (17) is arranged in the middle of the movable balancing weight (4); a rectangular guide hole (20) is vertically arranged on the left side and the right side of the cutter mounting seat (5); a fixed bolt (12) is arranged in the middle of the lower side surface of the cutter mounting seat (5); the upper end of the fixing bolt (12) sequentially penetrates through the cutter mounting seat (5) and the plurality of strip holes (17) and then extends out; the extended end of the fixed bolt (12) is sequentially screwed with a clamping nut (21) and a pull ring fixing plate (16) from bottom to top; a U-shaped pull ring (10) is fixed on the pull ring fixing plate (16); one end of the pull rope (22) is fixed on the U-shaped pull ring (10); a boss (8) is arranged on the upper side surface of the base (7); the other ends of the two guide rods (3) respectively penetrate through the strip holes (17) of the movable balancing weights (4) and the rectangular guide holes (20) in sequence and then are fixed on the upper side surface of the boss (8); the annular steel cable cutter (6) is arranged on the lower side surface of the cutter mounting seat (5), and the circumferential surface of the boss (8) is attached to the inner side surface of the annular steel cable cutter (6); a wiring hole (9) which penetrates through the base (7) is vertically arranged on the boss (8).

2. The wireline cutting device for observation downhole of claim 1, wherein: four guide rollers (13) are arranged in the two rectangular guide holes (20); the roller surface of each guide roller (13) is attached to the guide rod (3); two of the four guide rollers (13) are a group, two groups of guide rollers (13) are respectively arranged at the upper end and the lower end in the rectangular guide hole (20), and the two groups of guide rollers (13) are used for clamping the guide rod (3).

3. The wireline cutting device for observation downhole of claim 1, wherein: the movable balancing weight (4) is composed of a tenon half disc (19) and a mortise half disc (18); a tenon is arranged on the tenon half disc (19); a mortise is arranged on the mortise half disc (18); the tenon is buckled in the tenon hole.

4. A wireline cutting device for use downhole in an observation well according to claim 3, wherein: a positioning bolt (15) is arranged on the lower side surfaces of the tenon half disc (19) and the mortise half disc (18); the upper side surfaces of the tenon half disc (19), the mortise hole half disc (18) and the cutter mounting seat (5) are respectively provided with a bolt hole (14) for inserting a positioning bolt (15).

5. The wireline cutting device for observation downhole of claim 1, wherein: the extending end of the fixed bolt (12) is provided with a locknut (11), and the locknut (11) is positioned above the pull ring fixing plate (16).

6. The wireline cutting device for observation downhole of claim 1, wherein: a traction hole (2) is arranged in the middle of the traction plate (1); a traction rope (23) is arranged on the traction hole (2).