CN109415189B

CN109415189B - Rope-lowering rope knot making method and device

Info

Publication number: CN109415189B
Application number: CN201680074696.XA
Authority: CN
Inventors: 弗拉基米尔·阿列克谢维奇·巴什马科夫; 德米特里·爱德多维奇·乔巴尼扬; 弗拉基米尔·维克托罗维奇·特玛斯肯; 谢尔盖·弗拉基米罗维奇·巴什马科夫; 阿列克塞·朱雷维奇·阿瓦科夫; 阿列克谢·维克托罗维奇·皮斯克诺夫
Original assignee: Mil Moscow Helicopter Plant
Current assignee: Mil Moscow Helicopter Plant
Priority date: 2015-10-14
Filing date: 2016-10-11
Publication date: 2020-11-24
Anticipated expiration: 2036-10-11
Also published as: RU2626770C2; RU2015143907A; WO2017065645A1; CN109415189A; WO2017065645A8

Abstract

The present invention is related to aeronautical technology. The knot device consists of two posts, one of which has two rollers and a clip, and the second post has a third roller secured thereto. Two columns are fixed on the force bearing floor, and the distance between the columns is equal to the length of the knot. The roller shafts lie in a plane with a roller diameter equal to the spool diameter. To ensure that the length of the messenger seam determines the distance. The cutting is carried out under load, and the end part of the rope is made into a slipknot. The rope end is placed in the clamp, then the rope descending rope is wound on the two rollers, and the second end is connected with the constant weight object through the third roller. After a selected period of time, a special clip for fixing the knot length is installed. The strength of the rope descending rope is increased, and the difference of the lengths of the knots is reduced (the size precision of the knots is improved).

Description

Rope-lowering rope knot making method and device

The invention is related to the aviation technology, and is particularly used for manufacturing rope-lowering knots.

A rope of a helicopter pylon and a cable of a helicopter pylon cable according to Russian Federal patent No. 2141445, MPC B66C 1/18; the method of (1) as a prototype; the above knotting practice is described as follows: after the rope descending rope is cut off, the rope end parts are connected in an overlapping mode, and the rope in the middle part forms a ring. The method considers that the shearing load is 1-2% of the rope breaking load, the rope ends are in lap joint, the stitched knots are placed into the next knot, then all the knots are turned outwards, and the inside becomes the outside. The main disadvantages of this approach are: the knot length is inaccurate due to the position difference of the marked lines, the combination precision and the possibility of displacement of the marked lines during sewing.

The main objects of the present invention include: the strength of the rope descending rope is increased, and the difference of the lengths of the knots is reduced (the size precision of the knots is improved).

The above aim is realized by tying the end of the rope into a slipknot because the knot practice records that the shearing load is 1-2% of the rope breaking load. According to the inventive concept, the rope lowering cutting is performed with a special device, and the rope end is placed in a clamp, then the rope lowering is wound around two rollers, and the second end is connected with the constant weight object through a third roller. After a selected period of time, a special clip for fixing the knot length is installed. The load time of all knots of one rope is the same. After the knot is removed, the free end needs to be pressed against the suture. The knot reinforcement is performed by sewing the tape in place.

The knot device consists of two posts, one of which has two rollers and a clip, and the second post has a third roller secured thereto. Two columns are fixed on the force bearing floor, and the distance between the columns is equal to the length of the knot. The roller shafts lie in a plane with a roller diameter equal to the spool diameter. The distance between the end of the rope and the nearest roller, and the position of the roller and the other end of the strap and weight connection is determined based on the selected length to ensure the messenger length.

Therefore, the invention is adopted because the distance between the rope knot length rollers is determined, the factors such as large tensile load, time and the like are not changed before the clamping piece is fixed, and the accuracy of the rope knot length is improved. The rope falling rope manufactured by the method has larger damage load than other ropes.

The knot device is shown in detail in figures 1, 2, 3 and 4.

FIG. 1: a side view;

FIG. 2: a top view;

FIG. 3: a detailed view of the A;

FIG. 4: detail B.

The rope knot device consists of two columns which are fixed on the force bearing floor. The first column 1 has a third 3, fourth 4 rollers and a fifth clamp 5. The distance between the fourth roller 4 and the fifth clamp 5, and the position of the third roller 3 and the other end of the strip and weight connection is determined according to the length of the carrier joint. On the second frame there is a sixth roller 6. The third, fourth, sixth roller shaft 6 lies in a plane with a diameter equal to the diameter of the spool (not shown). The seventh strip 7 is cut under load (1-2% of the breaking load): and the eighth end part 8 is fixed by a fifth clamp 5, and is wound on the fourth roller 4 and then is continuously wound on the sixth roller 6. After the seventh strip 7 passes through the third roller 3, the ninth end 9 is connected with a tenth weight 10. The load time of all knots of one rope is the same. The length of the knot is fixed by an eleventh clamp 11. After the eleventh clamp 11 is installed, the knot length cannot be changed. After the tenth weight 10 is separated, the knot is removed. The ninth end 9 needs to be pressed against the seventh strip 7 and the carrier seam completed. The seventh tape 7 is sewn in place when the knot is reinforced.

Claims

1. The knot tying device comprises two columns, the distance between the two columns is equal to the length of the knot, and the two columns are fixed on the force bearing floor; the first column (1) is provided with a third roller (3), a fourth roller (4) and a fifth clamp (5), the second column (2) is provided with a sixth roller (6), the roller shafts of the rollers are positioned on a plane, and the diameter of each roller is equal to that of a bobbin; the distances between the positions of the fourth roller (4), the fifth clamp (5) and the third roller (3) at the end connected with the seventh strip and the end connected with the constant weight are determined based on the selected lengths so as to ensure the length of the messenger seam.

2. The rope knot making method of the rope lowering rope is realized by beating the end part of the rope lowering rope into a slipknot by considering that the shearing load is 1-2% of the breaking load of the rope lowering rope; rope descending rope cutting is performed by using the knot device as claimed in claim 1, firstly, the eighth rope end (8) of the rope descending rope is placed in the fifth clamp (5), then the rope descending rope is wound on the fourth roller (4) and the sixth roller (6), and the ninth end (9) of the rope descending rope is connected with a constant weight object through the third roller (3); after a selected period of time, installing a special eleventh clamp (11) for fixing the length of the knot; the load time of all knots of one rope descending rope is the same; after the knot is taken down, the ninth end (9) of the rope descending rope needs to be pressed and sewed; when the knot is reinforced, the seventh strip (7) is sewn at a proper position.