CN2061630U

CN2061630U - Mechanical pressure fastening rope cap

Info

Publication number: CN2061630U
Application number: CN 89221724
Authority: CN
Inventors: 朱月康
Original assignee: Individual
Current assignee: Individual
Priority date: 1989-12-30
Filing date: 1989-12-30
Publication date: 1990-09-05

Abstract

The utility model discloses a mechanical pressure type fastening rope cap which can load and bear a rope end after a rope is connected with a head piece and can replace the conventional rope cap filled with lead and zinc. The utility model is provided with a matching taper sleeve 1 and a cone 2, wherein more than three approximate round hole grooves are formed in the direction parallel to body walls between the taper sleeve 1 and the cone 2; splitting steel ropes are put in the round hole grooves between the taper sleeve 1 and the cone 2; a ball body 5 is placed on the cone 2; a steel ball 5 is thrown in the cone 2 by a gland bush 3; the gland bush 3 is connected to the taper sleeve 1 in a threaded way; a top thread 4 of a screw bolt is screwed on; the top thread 4 of the screw bolt is connected to the gland bush 3 in a threaded way to tightly press the ball body to force the steel ball to press the cone tightly and make the steel rope fixed on the rope cap firmly.

Description

Mechanical pressure fastening rope cap

The utility model relates to a kind of rope and is connected with hardware, for example: the mechanical pressure type fastening rope cap of oil machine-pumped oil well wire rope and polished rod end after the rope hanger pressing plate is connected.

At present, the oil field machinery oil well, wire rope and polished rod are after rope hanger is connected, its rope socket all adopts lead, the zinc of traditional type to irritate solid wire rope end: cut wire rope with gas welding in advance, irritating solid after lead, the zinc high temperature melting, adopt this kind method then, complex process, make wire rope annealing when gas welding is cut off, influence its intensity, make its lost of life; And a large amount of plumbous, the zinc of waste; In addition, when molten Pb, zinc, produce a large amount of harmful gases, contaminated air, infringement health of operators.Based on this because of, the design is proposed.

The purpose of this utility model is to overcome above-mentioned shortcoming part of the prior art, and provides a kind of simple in structure, fixed mechanical pressure type fastening rope cap.

The purpose of this utility model can reach by following technical measures: establish one and cooperate tapered sleeve, cone, parallel body wall direction has 3 above approximate circle hole slots between disome, insert wherein after the wire rope share split, on cone, put a spheroid, be threadedly connected on the tapered sleeve with pressure cap, compress spheroid with the bolt jackscrew on the gland to be threadedly connected to again.

The purpose of this utility model can also reach by following measure: above-mentioned tapered sleeve, cone respectively have corresponding minor arc groove more than 3 in parallel body wall direction, involutory back approximate circle hole slot; In cone, bolt jackscrew and spheroid counterface ball recess is arranged respectively again; Its circle hole groove number is looked the wire rope number of share of stock, is generally 6 and uniform, and aperture is slightly smaller than the strand wire warp.

Below in conjunction with accompanying drawing will the utility model is described in further detail:

Fig. 1 is a mechanical pressure type fastening rope cap structure half-sectional view;

Fig. 2, Fig. 3 are tapered sleeves 1 and go up that the B-B section partly cuts open, sectional view on Fig. 1;

Fig. 4, the 5th, Fig. 1 upper cone 2 and last A-A section thereof partly cut open, sectional view;

Fig. 6,7,8, the 9th, bolt jackscrew, steel ball body, gland wire rope partial cutaway, complete section, half sectional view on Fig. 1.

By shown in Figure 1, be to be provided with 3 above minor arc grooves in parallel inwall direction by the tapered sleeve 1 of cone-shaped cavity in establishing, its number is looked the wire rope number of share of stock, is generally 6 and uniform; Cooperating in the cone has the arc groove that puts symmetry with cone on cone 2, the body, its arc groove was corresponding after disome 1,2 cooperated fastens, and is sub-circular hole (ellipse) groove, be slightly smaller than 6 bursts of footpaths of wire rope; Be provided with ball recess 8 in cone and steel ball body counterface center again, so that the stabilized steel spheroid; Gland 3 is arranged on the tapered sleeve, the two to be to be threaded; Gland is interior two threading path bodies, can drop into steel ball body 5; To be threadedly connected on the gland, also there is ball recess 7 at jackscrew and steel ball counterface center with bolt jackscrew 4, make jackscrew penetrate behind the gland contact and compress spheroid.

During on-the-spot the use, the steel cable cap can disintegrate, remove core body after the wire rope end share split, per share rope body is put on the tapered sleeve arc groove groove, insert cone under external force, buckling gland twists on tapered sleeve, drop into steel ball, the bolt jackscrew is twisted on gland, compress steel ball under external force, make cone, cover for drive fit, with between the firm end of frictional force.

The utility model compared with prior art has following advantage:

This end fastening rope cap structure and mounting process are simple, and cost is low, save a large amount of non-ferrous metals, and solid and reliable.

Claims

1, a kind of carrying rope of being used for is connected with hardware, for example: oil machine-pumped oil well wire rope and polished rod are after the rope hanger pressing plate is connected, and the mechanical pressure type fastening rope cap of end is characterized in that:

(1), establish one cooperate tapered sleeve 1, cone 2, parallel body wall direction has 3 above approximate circle hole slots between disome, insert wherein after the wire rope share split:

(2), put a spheroid 5 on the cone 2, be threadedly connected on the tapered sleeve 1, compress spheroid with bolt jackscrew 4 to be threadedly connected on the gland 3 again with gland 3.

2, fastening rope cap as claimed in claim 1 is characterized in that: in tapered sleeve 1, cone 2 parallel body wall directions corresponding minor arc groove more than 3 is arranged respectively, involutory back approximate circle hole slot.

3, fastening rope cap as claimed in claim 1 is characterized in that: cone 2, bolt jackscrew and spheroid counterface respectively have ball recess 7,8.

4, as claim 1,2 described fastening rope caps, it is characterized in that: the circle hole groove number is looked the wire rope number of share of stock, is generally 6 and uniform, and its aperture is slightly smaller than the strand wire footpath.