Steel wire rope endless loop with no joints and rope core

Abstract

The rope loop rope core without joints of the present invention is composed of 1-3 locking joints, several connecting joints and several pins. One end of each locking joint is an open section, and the other end is a socket section. Between the open section and the socket section is a concave connecting section. One end of each connecting joint is an open section, and the other end is a socket section. First pin holes and second pin holes are respectively formed in the above-mentioned open section and the above-mentioned socket section. The socket section of one connecting joint or locking joint is inserted into the open section of another connecting joint or locking joint, so that the first pin hole of the socket section of one connecting joint or locking joint is aligned with the second pin hole of the open section of another connecting joint or locking joint. The pin passes through the above-mentioned first pin hole and the second pin hole to connect two connecting joints or two locking joints or one connecting joint and one locking joint together. By analogy, several connecting joints and 1-3 locking joints are connected into a rope loop rope core.

Description

Technical Field

[0001] This invention patent relates to the field of metal products, and particularly to the manufacturing technology of seamless wire rope loops. Background Art

[0002] The seamless wire rope loop of this patent (hereinafter referred to as the loop) specifically refers to a wire rope sling made by winding the same wire rope, that is, folding one end of the wire rope back, binding it with the original wire rope, and forming a circle (rope core). Then, the other end of the wire rope is threaded and wound around this circle for six turns.

[0003] After the loop is wound, the exposed wire rope end needs to be inserted into the position of the rope core, and the original rope core is replaced. This process is called core replacement. Generally, the core replacement length is about half of the loop circumference (this process is applicable to small loops that can be wound by hand). However, in actual production, in order to adapt to large-scale production, a complete substitute rope core is often used. After winding, the two ends of the rope are respectively pressed in to completely replace the substitute rope core.

[0004] Currently, there are mainly two popular types of rope cores. One is to use a steel pipe of a certain fixed length (mostly made of steel), form it into a circle, wind the wire rope outside the steel pipe, and then insert the two ends of the wire rope into the core part of the six turns along the gaps between the wire strands to replace the steel pipe. This process of "core replacement" is the most primitive method (the steel pipe after core replacement is generally scrapped). When selecting the steel pipe, generally, the diameter of the steel pipe is greater than 1.12 times the diameter of the wire rope.

[0005] The other is to use a wire rope with a diameter similar to that of the steel pipe to replace the steel pipe. This type of rope core is mainly applicable to loops made on machinery and equipment. In order to enable the rope core to rotate on the driving wheel of the equipment, a relatively flexible wire rope is used. However, the wire rope has the following three major disadvantages: First, the rigidity of the rope core is insufficient. No matter how much tension is applied to the wire rope core, when the wire rope is wound around it, the twisting force of the wire rope and the rope core can interact with each other, causing the rope core to rotate back at the initial winding section, and gradually changing as the winding length increases, resulting in a local decrease in the twist angle of the wire rope on the rope core, affecting the subsequent production of the loop and the product quality. Moreover, during the winding of the second and third turns, the rope core will change again. Second, the cost of using a wire rope to make the rope core is high. The wire rope core untwists and loosens during use, so it can only be used twice and then must be scrapped. On the other hand, when making loops with the same diameter but different lengths, they cannot be used interchangeably, and the intermediate connection is time-consuming and laborious. Third, the diameter of the connection joint is too large, affecting the rotation and winding effect on the driving wheel and increasing the workload of subsequent rope repair (correcting to make the lay length uniform).

[0006] The steel wire rope non-joint rope loop is a kind of hoisting tackle mainly used for hoisting large tonnages, such as the offshore assembly of oil jacket platforms, etc. It has the characteristics of large hoisting tonnage and convenient use. Since it was introduced into our country, there has also been a relatively large production output. To reduce material waste and human resource waste and lighten the labor intensity, the following discloses the manufacturing method and usage method of the rope core newly developed by our company for mutual learning. The specific content is as follows: Summary of the Invention

[0007] The invention object of the present application is to overcome the problems of high cost, non-reusability and cumbersome operation of the existing rope cores, and to provide a rope core for a steel wire rope non-joint rope loop, so as to further improve the production efficiency, product quality of the steel wire rope non-joint rope loop and reduce the production cost.

[0008] A rope core for a steel wire rope non-joint rope loop of the present invention is composed of 1 - 3 locking joints, several connecting joints and several pins to form a rope core of a rope loop, wherein: one end of each locking joint is an opening section, and the other end is a socket section, and between the opening section and the socket section is a concave connecting section; one end of each connecting joint is an opening section, and the other end is a socket section; first pin holes and second pin holes are respectively opened on the above-mentioned opening section and the above-mentioned socket section. The socket section of a connecting joint or a locking joint is inserted into the opening section of another connecting joint or a locking joint, so that the first pin hole of the socket section of a connecting joint or a locking joint is aligned with the second pin hole of the opening section of another connecting joint or a locking joint, and the pin passes through the above-mentioned first pin hole and the second pin hole to connect two connecting joints or two locking joints or one connecting joint and one locking joint together. By analogy, several connecting joints and 1 - 3 locking joints are connected into a rope core of a rope loop.

[0009] A rope core for a steel wire rope non-joint rope loop of the present invention, wherein: it further includes: a rope clamp, and the rope clamp includes: a bottom support, a U-shaped ring and a nut. The rope clamp is installed on the concave connecting section of the locking joint. The bottom of the U-shaped ring is sleeved on the concave connecting section, and the two ends of the U-shaped ring respectively pass through two holes opened on the bottom support. The steel wire rope passes between the bottom support and the concave connecting section, and the end parts of the U-shaped ring respectively clamp the steel wire rope between the bottom support and the concave connecting section through nuts.

[0010] A rope core for a steel wire rope non-joint rope loop of the present invention, wherein: 1 - 3 rope clamps are installed on the rope core of the rope loop.

[0011] A rope core for a steel wire rope non-joint rope loop of the present invention has the following advantages:

[0012] 1. The rope core for a steel wire rope non-joint rope loop of the present invention overcomes the problem of local loosening caused by the untwisting of the steel wire rope core, thereby improving the overall quality and production efficiency.

[0013] 2. The joint connected by pressing an aluminum pipe affects the operation when passing through the drive wheel, thus affecting the quality. This rope clip solves this problem to the greatest extent.

[0014] 3. It is more economical, efficient and more convenient to use. This rope core can be reused multiple times and is convenient for connection. The connection of the steel wire rope core requires pressing, and the rope cores of different lengths of rope loops are all independently manufactured and cannot be reused; when the steel pipe winds different lengths of rope loops, it cannot be reused, and the production efficiency is lower. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a front view schematic diagram of a rope loop rope core without joints of a steel wire rope of the present invention;

[0016] Figure 2 is Figure 1 a top view schematic diagram of;

[0017] Figure 3 is a front view schematic diagram of a locking section;

[0018] Figure 4 is Figure 3 a top view schematic diagram of;

[0019] Figure 5 is a front view schematic diagram of a connecting section;

[0020] Figure 6 is Figure 5 a top view schematic diagram of;

[0021] Figure 7 is a cross-sectional schematic diagram of the rope clip.

[0022] In Figures 1 to 7 : reference numeral 1 is the locking section; reference numeral 2 is the concave connecting section; reference numeral 3 is the socket section; reference numeral 4 is the opening section; reference numeral 5 is the pin; reference numeral 6 is the first pin hole; reference numeral 7 is the second pin hole; reference numeral 8 is the nut; reference numeral 9 is the bottom support; reference numeral 10 is the U-shaped ring; reference numeral 11 is the rope clip; reference numeral 12 is the connecting section. DETAILED DESCRIPTION OF THE INVENTION

[0023] As Figures 1 to 6As shown in the figure, the loop rope core of the steel wire rope of the present invention without joints is composed of 1 - 3 locking joints 1, several connecting joints 12 and several pins 5. It is characterized in that: one end of each locking joint 1 is an opening section 4, and the other end is a socket section 3. Between the opening section 4 and the socket section 3 is a concave connecting section 2; one end of each connecting joint 12 is an opening section 4, and the other end is a socket section 3; on the above - mentioned opening section 4 and the above - mentioned socket section 3, a first pin hole 6 and a second pin hole 7 are respectively opened. The socket section 3 of a connecting joint 12 or a locking joint 1 is inserted into the opening section 4 of another connecting joint 12 or locking joint 1, so that the first pin hole 6 of the socket section 3 of a connecting joint 12 or a locking joint 1 is aligned with the second pin hole 7 of the opening section 4 of another connecting joint 12 or locking joint 1. The pin 5 passes through the above - mentioned first pin hole 6 and the second pin hole 7, connecting two connecting joints 12 or two locking joints 1 or one connecting joint 12 and one locking joint 1 together. And so on, several connecting joints 12 and 1 - 3 locking joints 1 are connected into a loop rope core.

[0024] As Figure 5 shown, the loop rope core of the steel wire rope without joints further includes: a wire rope clip 11. The wire rope clip 11 includes: a base 9, a U - shaped ring 10 and a nut 8. The wire rope clip 11 is installed on the concave connecting section 2 of the locking joint 1. The bottom of the U - shaped ring 10 is sleeved on the concave connecting section 2. The two ends of the U - shaped ring 10 respectively pass through two holes opened in the base 9. The steel wire rope passes between the base 9 and the concave connecting section 2. The two ends of the U - shaped ring 10 respectively clamp the steel wire rope between the base 9 and the concave connecting section 2 through the nut 8. 1 - 3 wire rope clips 11 are installed on the loop rope core.

[0025] The using method of the loop rope core of the steel wire rope without joints is as follows:

[0026] 1. According to the diameter of the loop to be wound, select a suitable rope core, and then assemble the rope core according to the required length. Generally, according to the length of the connecting joint, the assembly can achieve an accuracy of 0.1m. In order to further improve the accuracy of the loop length, different - length connecting joints can be partially replaced. Use the manufacturing equipment for the loop of the steel wire rope without joints with the patent number ZL2005101239257.6 and the invention name: Manufacturing equipment for the loop of the steel wire rope without joints.

[0027] 2. The wire rope clip can be installed with 1, 2, or fixed with three special wire rope clips according to different situations. When fixing, if two or more wire rope clips are used, the winding angle of the steel wire rope on the rope core should be considered, which should be consistent with the winding angle of the loop and not be in a straight line to avoid affecting the subsequent winding of the steel wire rope. In addition, according to the regulations for using the steel wire rope clip, there should be a certain interval between two wire rope clips and they should not be used adjacent to each other.

[0028] 3. After the steel wire rope is wound around the rope core and needs to be removed from the equipment for replacement, the process of replacing the rope core is not much different from that of a steel pipe core or a steel wire rope core. However, when replacing the rope core of this product, for an overly long core, it can be disassembled while being replaced, making the replacement of the rope core smoother and more convenient. The replaced rope core needs to be cleaned and stored for future use. This rope core can be reused multiple times. For the damaged connection joints during use, they can be replaced and repaired, making the overall production cost lower.

[0029] The above-described embodiments are merely descriptions of the preferred implementation methods of the present invention and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A loop rope core without joints for wire ropes, which is composed of 1 - 3 locking joints (1), several connecting joints (12) and several pins (5). It is characterized in that: One end of each locking joint (1) is an open section (4), and the other end is a socket section (3). Between the open section (4) and the socket section (3) is a concave connecting section (2); one end of each connecting joint (12) is an open section (4), and the other end is a socket section (3); first pin holes (6) and second pin holes (7) are respectively opened on the above-mentioned socket section (3) and the above-mentioned open section (4). The socket section (3) of a connecting joint (12) or a locking joint (1) is inserted into the open section (4) of another connecting joint (12) or a locking joint (1), so that the first pin hole (6) of the socket section (3) of a connecting joint (12) or a locking joint (1) is aligned with the second pin hole (7) of the open section (4) of another connecting joint (12) or a locking joint (1). The pin (5) passes through the above-mentioned first pin hole (6) and the second pin hole (7) to connect two connecting joints (12) or two locking joints (1) or one connecting joint (12) and one locking joint (1) together. And so on, several connecting joints (12) and 1 - 3 locking joints (1) are connected into a loop rope core.

2. The loop rope core without joints for wire ropes according to claim 1,[[]] It is characterized in that: It further includes: a wire rope clip (11), and the wire rope clip (11) includes: a base (9), a U-shaped ring (10) and a nut (8). The wire rope clip (11) is installed on the concave connecting section (2) of the locking joint (1). The bottom of the U-shaped ring (10) is sleeved on the concave connecting section (2). The two ends of the U-shaped ring (10) respectively pass through two holes opened on the base (9). The wire rope passes between the base (9) and the concave connecting section (2). The ends of the U-shaped ring (10) respectively clamp the wire rope between the base (9) and the concave connecting section (2) through the nut (8).

3. The loop rope core without joints for wire ropes according to claim 2,[[]] It is characterized in that: 1 - 3 wire rope clips (11) are installed on the loop rope core.

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