Steel wire rope counterweight device and drilling pneumatic winch

Abstract

The steel wire rope counterweight device comprises a steel wire rope and a plurality of counterweights, the counterweights are detachably connected to the steel wire rope, and through the detachable connection mode, the number of the counterweights can be adjusted conveniently, and the counterweights and the steel wire rope can be maintained conveniently. The counterweights are distributed at intervals in the length direction of the steel wire rope, and good bendability and trafficability of the steel wire rope can be guaranteed through the interval distribution mode.

Description

Technical Field

[0001] The utility model relates to the technical field of drilling tools, in particular to a wire rope counterweight device and a drilling pneumatic winch. Background Art

[0002] The drilling pneumatic winch used at the oil drilling site has a light hook, so it is easy for the wire rope to not be aligned when the hook is lowered without load. Therefore, manpower is needed to pull the wire rope at the hook end downward, and the pneumatic winch often needs to perform rope arrangement operations.

[0003] During drilling tool construction, it is necessary to use a pneumatic winch to lift a single drill pipe elevator to the second-level platform of the derrick to hang the drill pipe column. Since the hook is light, the operator on the second-level platform needs to keep pulling the wire rope at the hook end to prevent the hook and the single elevator from being carried to the crown block pulley by the weight of the wire rope at the pneumatic winch end, which causes a waste of time and also brings great construction safety risks. Utility Model Content

[0004] The utility model aims to provide a wire rope counterweight device and a drilling pneumatic winch, which can effectively improve the passability of the wire rope.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A wire rope counterweight device comprises: a wire rope and a plurality of counterweights, wherein the counterweights are detachably connected to the wire rope and the plurality of counterweights are distributed at intervals along the length direction of the wire rope.

[0007] Preferably, the counterweight is threaded onto the steel wire rope.

[0008] Preferably, the counterweight is an ellipsoidal sphere.

[0009] Preferably, a center hole is provided on the ellipsoidal sphere along its long axis direction, and the ellipsoidal sphere is connected to the steel wire rope through the center hole.

[0010] Preferably, the ellipsoidal sphere is provided with a plurality of threaded holes, each of which extends along the short axis direction of the ellipsoidal sphere, and the plurality of threaded holes are evenly distributed along the circumferential direction of the ellipsoidal sphere. The ellipsoidal sphere is fixed to the steel wire rope by screws passing through the threaded holes.

[0011] Preferably, a rubber pad is provided at the contact end between the screw and the steel wire rope.

[0012] Preferably, the threaded hole is a countersunk threaded hole, and the screw is a countersunk screw.

[0013] Preferably, the wire rope counterweight device further comprises a rotating body, the upper end of the rotating body is connected to the lower end of the wire rope via a shackle, and the lower end of the rotating body is connected to a hook.

[0014] Preferably, a limiting portion is provided on the steel wire rope, and the limiting portion is located below a lowest counterweight object, and the limiting portion is used to limit the downward movement of the counterweight object relative to the steel wire rope.

[0015] A drilling pneumatic winch comprises any one of the wire rope counterweight devices described above.

[0016] Compared with the prior art, the above technical solution has the following advantages:

[0017] The utility model provides a wire rope counterweight device and a drilling pneumatic winch, comprising: a wire rope and a plurality of counterweights, wherein the counterweights are detachably connected to the wire rope. The detachable connection method is not only convenient for adjusting the number of counterweights, but also convenient for maintaining the counterweights and the wire rope. The plurality of counterweights are distributed at intervals along the length direction of the wire rope. The interval distribution method can ensure good bendability and passability of the wire rope. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0019] Figure 1 A front view of a wire rope counterweight device provided by an embodiment of the utility model;

[0020] Figure 2 A side view of a wire rope counterweight device provided by an embodiment of the utility model;

[0021] Figure 3 It is a schematic diagram of the cross-sectional structure of the counterweight.

[0022] The reference numerals are as follows:

[0023] 1 is a steel wire rope, 2 is a counterweight, 21 is an ellipsoidal ball, 22 is a gasket, 23 is a screw, 24 is a rubber pad, 3 is a limiting portion, 4 is a shackle, 5 is a rotating body, and 6 is a hook. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Please refer to Figure 1 to Figure 3 A wire rope counterweight device provided by an embodiment of the utility model includes: a wire rope 1 and a plurality of counterweights 2, the counterweights 2 being detachably connected to the wire rope 1. The detachable connection method not only facilitates the adjustment of the number of counterweights 2, but also facilitates the maintenance of the counterweights 2 and the wire rope 1. The plurality of counterweights 2 are distributed at intervals along the length direction of the wire rope 1. The interval distribution method can ensure good bendability and passability of the wire rope 1.

[0026] In some embodiments, Figure 3 As shown, the counterweight 2 is connected to the steel wire rope 1. For example, a through hole can be set in the middle of the counterweight 2, and the counterweight 2 is connected and fixed to the steel wire rope 1 in sequence. Among them, the counterweight 2 is preferably an ellipsoidal ball 21, which can improve the passability of the steel wire rope 1. For example, the steel wire rope 1 is 4 meters long and 15.8 mm in diameter. Five ellipsoidal balls 21 can be installed at intervals on the steel wire rope 1. The two ends of the steel wire rope 1 are braided and added with heart rings. The heart rings are pressed using a special alloy aluminum sleeve. The long axis of the ellipsoidal ball 21 is 120 mm, the short axis is 100 mm, and the weight is a steel structure of 3.4 kg. Multiple ellipsoidal balls 21 are fixed on the steel wire rope 1 at intervals of 60 mm to prevent the ellipsoidal balls 21 from gathering together and being unable to bend. In order to facilitate the connection of the ellipsoidal ball 21, a center hole is provided on the ellipsoidal ball 21 along its long axis direction. The diameter of the center hole is 22 mm, and the ellipsoidal ball 21 is connected to the steel wire rope 1 through the center hole. In addition, the counterweight 2 of other shapes and structures can also be used.

[0027] In some embodiments, Figure 3 As shown, the ellipsoidal ball 21 is provided with a plurality of threaded holes, each of which extends along the minor axis direction of the ellipsoidal ball 21, and the plurality of threaded holes are evenly distributed along the circumferential direction of the ellipsoidal ball 21. For example, two threaded holes can be symmetrically provided on the ellipsoidal ball 21, and the ellipsoidal ball 21 is fixed on the wire rope 1 by passing a screw 23 through the threaded hole, and a 12 mm gasket 22 is added between the screw 23 and the ellipsoidal ball 21 to prevent the screw 23 from loosening. Among them, the threaded hole can be a countersunk threaded hole, and the screw 23 can be an optional countersunk screw 23, such as a hexagon socket countersunk screw 23.

[0028] In some embodiments, a rubber pad 24 is provided at the contact end between the screw 23 and the steel wire rope 1 . The rubber pad 24 can not only improve the connection stability of the ellipsoidal ball 21 , but also prevent the screw 23 from squeezing and deforming the steel wire rope 1 in order to fix the ellipsoidal ball 21 .

[0029] In some embodiments, the wire rope counterweight device further comprises a rotating body 5, the upper end of the rotating body 5 is connected to the lower end of the wire rope 1 through a shackle 4 for easy maintenance, and the lower end of the rotating body 5 is connected to a hook 6, which is preferably a ram's horn safety hook. For example, the rotating body 5 is preferably made of 40Cr, and there is a pressure bearing inside the rotating body 5 with a rated load of 8T. The upper part uses an alloy steel 40Cr die forging with a rated load of 8T shackle 4 connected to the wire rope 1, and the lower part is connected with a ram's horn safety hook with a rated load of 8T manufactured by 35CrMo die forging. The ram's horn safety hook has a self-locking device and has the advantages of being light and easy to operate. The spiral force generated by the heavy load can be released through the rotating body 5 to prevent the wire rope 1 from twisting.

[0030] In some embodiments, a limit portion 3 is provided on the wire rope 1, and the limit portion 3 is located below the lowest counterweight 2. The limit portion 3 is used to limit the downward movement of the counterweight 2 relative to the wire rope 1, thereby preventing the counterweight 2 from suddenly sliding down after the screw 23 loosens, thereby improving the safety of the counterweight 2.

[0031] The embodiment of the utility model further provides a drilling pneumatic winch, including the wire rope counterweight device provided by any of the above embodiments. The beneficial effects of the drilling pneumatic winch can be referred to the above wire rope counterweight device, which will not be repeated here.

[0032] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0033] The above is a detailed introduction to a wire rope counterweight device and a drilling pneumatic winch provided by the utility model. This article uses specific examples to illustrate the principle and implementation method of the utility model. The description of the above embodiment is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A wire rope counterweight device, characterized in that: include: A steel wire rope and a plurality of counterweights, wherein the counterweights are detachably connected to the steel wire rope, the plurality of counterweights are spaced apart along the length direction of the steel wire rope, the counterweights are threaded onto the steel wire rope, the counterweights are ellipsoidal balls, a center hole is provided on the ellipsoidal balls along the direction of the long axis thereof, the ellipsoidal balls are threaded onto the steel wire rope through the center hole, a plurality of threaded holes are provided on the ellipsoidal balls, each of the threaded holes extends along the direction of the short axis of the ellipsoidal balls, the plurality of threaded holes are evenly distributed along the circumferential direction of the ellipsoidal balls, and the ellipsoidal balls are fixed to the steel wire rope by screws passing through the threaded holes.

2. The wire rope counterweight device according to claim 1, characterized in that: The contact ends of the screw and the steel wire rope are provided with rubber pads.

3. The wire rope counterweight device according to claim 1, characterized in that: The threaded hole is a countersunk threaded hole, and the screw is a countersunk screw.

4. The wire rope counterweight device according to claim 1, characterized in that: The wire rope counterweight device also includes a rotating body, the upper end of the rotating body is connected to the lower end of the wire rope through a shackle, and the lower end of the rotating body is connected to a hook.

5. The wire rope counterweight device according to any one of claims 1 to 4, characterized in that: The steel wire rope is provided with a limiting portion, the limiting portion is located below the lowest counterweight, and the limiting portion is used to limit the downward movement of the counterweight relative to the steel wire rope.

6. A drilling pneumatic winch, characterized in that: A wire rope counterweight device comprising any one of claims 1 to 5.

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