A novel lightweight rigid rope and its processing method

Abstract

A novel lightweight rigid rope and its processing method are disclosed. The rigid rope includes a main rope and a stress-relieving connecting device at one end. The stress-relieving connecting device includes a connector and a stress-relieving sleeve on its lower side. The connector includes a connecting block and a connector head at its upper end. A vertical through hole is provided in the middle of the connecting block, and one end of the main rope is fixed in the through hole by resin. The stress-relieving sleeve is made of silicone rubber and is vertically located at the lower end of the connecting block. The main rope passes through the stress-relieving sleeve, and the outer diameter of the lower end of the stress-relieving sleeve is smaller than the outer diameter of its upper end. The rigid rope can be connected to the component to be connected through the connector head. The stress-relieving sleeve avoids the problem of bending stress concentration at the connection position between the end of the main rope and the connecting block, allowing the bending stress of the main rope to be transferred to the stress-relieving sleeve and released under the action of the stress-relieving sleeve, effectively ensuring the connection stability between the main rope and the stress-relieving connecting device.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of connecting device, in particular to a new light rigid rope and its processing method. BACKGROUND

[0002] At present, chemical fiber rope is widely used in various fields due to its advantages of softness, lightness, high strength and easy knotting, and compared with steel wire rope, chemical fiber rope has the characteristics of light weight while ensuring high strength, but on the one hand, the chemical fiber rope is mostly arranged in single or multi-strand interwoven arrangement during use, which leads to poor strength, and on the other hand, due to its softness, it is easy to be extruded and deformed during winding and overlapping, especially between the end structure for connection and the structural member, which is limited by wear resistance and scratch resistance, and accidents are easily caused by cutting and friction between the structure and the chemical fiber rope, some institutions also take the way of braided sheath or increase the rigid protective layer to avoid this problem, but such arrangement will inevitably affect the characteristics of the chemical fiber rope itself (such as softness, lightness, easy knotting, etc.), which leads to many restrictions in the use of chemical fiber rope. SUMMARY

[0003] In order to solve the technical problems in the background art, the present application provides a new light rigid rope and its processing method.

[0004] The technical scheme of the present application is as follows:

[0005] The present application first provides a new light rigid rope, which comprises a main rope and a stress relief connecting device at one end of the main rope, and the stress relief connecting device can be connected with a component to be connected.

[0006] As the core technical concept of the present application, the stress relief connecting device comprises a connecting piece and a stress relief sleeve below the connecting piece, specifically, the connecting piece comprises a connecting block and a connecting head at the upper end of the connecting block, a through hole is vertically provided in the middle part of the connecting block, and one end of the main rope is fixed in the through hole by resin, so as to complete the fixed connection of the main rope and the connecting piece, the stress relief sleeve is made of silicone rubber and vertically arranged at the lower end of the connecting block, the main rope passes through the stress relief sleeve, and the outer diameter of the lower end of the stress relief sleeve is smaller than that of the upper end of the stress relief sleeve, the rigid rope (a new type of lightweight rigid rope and its processing method) can be connected with the connecting head and the component to be connected, wherein the main rope is fixed with the connecting block, the stress relief sleeve is arranged to avoid the bending stress concentration problem at the connecting position of the main rope and the connecting block, so that the bending stress of the main rope can be transmitted to the stress relief sleeve, and the stress is released under the action of the stress relief sleeve, avoiding the influence of the bending stress on the structural strength of the main rope itself, or the cutting friction of the connecting block due to the bending of the main rope, effectively ensuring the connection stability between the main rope and the stress relief connecting device.

[0007] As a preferred embodiment of the new type of lightweight rigid rope, in order to further ensure the service life of the rigid rope and facilitate the replacement of the fatigue damaged stress relief sleeve, the stress relief sleeve and the connecting piece are connected in a detachable manner.

[0008] As a further preferred embodiment, the stress relief sleeve is in close contact with the outer circle of the main rope, so as to ensure that the bending stress generated by the main rope can be better transmitted to the stress relief sleeve.

[0009] Further preferably, the upper end and the lower end of the stress relief sleeve are smoothly transitioned, so as to ensure that the stress relief sleeve can more smoothly complete the stress release work through deformation.

[0010] As the new type of lightweight rigid rope described above, in order to ensure the structural strength and service life of the main rope, the main rope is arranged to have a load-bearing tensile core layer, a woven support layer and a wear-resistant coating layer arranged from inside to outside.

[0011] As for the structure of the connecting block, it comprises a main block and a connecting column at the lower end of the main block, the connecting column comprises a first connecting section and a first clamping section, wherein the first connecting section is arranged close to the main block and has an outer diameter larger than that of the first clamping section, the through hole is arranged through the main block and the connecting column, and the outer circle of the first connecting section is provided with external threads.

[0012] Further, the stress relief connecting device further comprises a fixing sleeve, which is a cylindrical structure and comprises a second connecting section and a second clamping section, the outer diameters of the second connecting section and the second clamping section are the same, and the inner diameter of the second connecting section is smaller than that of the second clamping section; an inner thread matched with an outer thread is arranged on the inner circle of the second connecting section; and the stress relief sleeve is clamped and fixed between the first clamping section and the second clamping section.

[0013] In particular to the structure of the stress relief and the matching mode with the connecting column and the fixing sleeve, the stress relief sleeve comprises a third connecting section and a stress relief section, the third connecting section is a cylindrical structure with an inner diameter matched with the outer diameter of the first clamping section and an outer diameter matched with the inner diameter of the second clamping section, and the stress relief section is provided with a through hole capable of accommodating the main rope.

[0014] In order to ensure the structural strength of the main rope and make the woven support layer arranged without affecting the characteristics (such as softness, lightness, easy knotting, etc.) of the main rope, the woven support layer is a cylindrical sheath structure woven by S and Z twist synthetic fiber strands.

[0015] In order to ensure that the stress relief connecting device can be more conveniently connected with the components to be connected, the shape of the connecting head is a closed U shape, or the shape of the connecting head is a closed ring, or the connecting form of the connecting head is a bolt type.

[0016] The application further provides a processing method of the novel lightweight rigid rope.

[0017] S1, processing of the main rope;

[0018] S1.1, making strands by plying Kevlar or Dyneema and adding micro-twist;

[0019] S1.2, arranging a plurality of strands in parallel to form a load-bearing tensile core layer;

[0020] S1.3, weaving a woven support layer covering the load-bearing tensile core layer on the outer layer of the load-bearing tensile core layer;

[0021] S1.4, forming a wear-resistant covering layer covering the woven support layer on the outer layer of the woven support layer by melt extrusion of a covering material;

[0022] S2, processing of the connecting piece;

[0023] The blank of the connecting piece is made by casting, and the blank is polished and then processed with an outer thread to form the connecting piece;

[0024] S3, processing of the fixing sleeve;

[0025] The blank of the fixing sleeve is made by casting, and the blank is polished and then processed with internal threads to form the fixing sleeve;

[0026] S4, processing of the stress relief sleeve;

[0027] The stress relief sleeve is made by injection molding processing;

[0028] S5, assembly forming;

[0029] S5.1, the stress relief sleeve and the fixing sleeve are sequentially sleeved from one end of the main rope;

[0030] The third connecting section of the stress relief sleeve and the second connecting section of the fixing sleeve are arranged close to the end of the main rope;

[0031] S5.2, the wear-resistant coating layer and the woven support layer of the main rope end are sequentially stripped, and the load-bearing tensile core layer is exposed to the woven support layer, and the woven support layer is exposed to the wear-resistant coating layer;

[0032] S5.3, the main rope end is inserted into the perforation close to one end of the connecting column, and the load-bearing tensile core layer end is inserted into the other end of the perforation;

[0033] S5.4, a plurality of strands are separated, and resin is poured into the perforation and cooled to form;

[0034] S5.5, the third connecting section of the stress relief sleeve is inserted into the second clamping section of the fixing sleeve;

[0035] S5.6, the second connecting section of the fixing sleeve is threadedly connected with the first connecting section of the connecting column, while the third connecting section of the stress relief sleeve is sleeved on the first clamping section of the connecting column.

[0036] The processing method of the novel lightweight rigid rope as described above, as a preferred embodiment, to facilitate the connection of the main rope and the connecting piece while ensuring the structural strength of the main rope, in step S1.1, the diameter of the strand is 1-10mm.

[0037] As a further preferred, in step S1.3, the material of the woven support layer is one or a combination of polypropylene fiber, polyester fiber, and polyamide fiber.

[0038] Further preferably, in step S1.4, the coating material is one of PVC, PE, TPE, and TPU particles.

[0039] The beneficial effects of this invention are as follows: This invention is a novel lightweight rigid rope and its processing method, which can be connected to the component to be connected through a connector. The main rope is fixed to the connecting block. The setting of the stress relief sleeve avoids the problem of bending stress concentration at the connection position between the end of the main rope and the connecting block. This allows the bending stress of the main rope to be transmitted to the stress relief sleeve, and the stress is released under the action of the stress relief sleeve. This avoids the influence of bending stress on the structural strength of the main rope itself, or the cutting friction caused by the bending of the main rope on the connecting block, effectively ensuring the connection stability between the main rope and the stress relief connection device. Attached Figure Description

[0040] The solutions and advantages of this application will become clear to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention.

[0041] In the attached diagram:

[0042] Figure 1 This is a schematic diagram of the main rope structure in the embodiment;

[0043] Figure 2 This is a schematic diagram of the cooperation structure between the main rope and the stress relief connection device in the embodiment;

[0044] The components represented by the various reference numerals in the diagram are:

[0045] 100. Main rope; 101. Load-bearing tensile core layer; 102. Braided support layer; 103. Wear-resistant coating layer; 200. Stress relief connection device; 201. Stress relief sleeve; 202. Fixing sleeve; 203. Connector; 204. Connector head; 205. Connecting block; 206. External thread; 207. Internal thread; 208. Resin. Detailed Implementation

[0046] Exemplary embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings.

[0047] Example

[0048] This embodiment first provides a novel lightweight rigid rope, see [link to previous section]. Figure 1 and Figure 2 The system includes a main rope 100 and a stress-relieving connecting device 200 at one end, and can be connected to the component to be connected through the stress-relieving connecting device 200. The structure of the rigid rope (the above-mentioned novel lightweight rigid rope and its processing method) will be described in more detail below.

[0049] In this embodiment, combined with Figure 1To ensure the structural strength and service life of the main rope 100, the main rope 100 is configured with a load-bearing tensile core layer 101, a braided support layer 102, and a wear-resistant coating layer 103 arranged sequentially from the inside to the outside.

[0050] The woven support layer 102 is a cylindrical sheath structure woven from synthetic fiber strands twisted in the S and Z directions.

[0051] In this embodiment, as the core technical concept of the present invention, the stress relief connection device 200 includes a connector 203 and a stress relief sleeve 201 on its lower side. The main rope 100 is fixedly connected to the connector 203, and the stress relief sleeve 201 can complete the stress relief work at the end where the main rope 100 is fixedly connected to the connector 203.

[0052] Specifically, the connector 203 includes a connecting block 205 and a connector 204 at its upper end. The connecting block 205 has a vertical through-hole in its center, and one end of the main rope 100 is fixed to the through-hole by resin 208, thus completing the fixed connection between the main rope 100 and the connector 203. The stress-relieving sleeve 201 is made of silicone rubber and is vertically located at the lower end of the connecting block 205. The main rope 100 passes through the stress-relieving sleeve 201, and the outer diameter of the lower end of the stress-relieving sleeve 201 is smaller than the outer diameter of its upper end. The rigid rope can connect to the main rope 100 via the connector 204. The connecting components are connected, with the main rope 100 fixed to the connecting block 205. The stress-relieving sleeve 201 avoids the problem of bending stress concentration at the connection position between the end of the main rope 100 and the connecting block 205, allowing the bending stress of the main rope 100 to be transmitted to the stress-relieving sleeve 201, and the stress is released under the action of the stress-relieving sleeve 201. This avoids the impact of bending stress on the structural strength of the main rope 100 itself, or the cutting friction caused by the bending of the main rope 100 by the connecting block 205, effectively ensuring the connection stability between the main rope 100 and the stress-relieving connecting device 200.

[0053] To ensure the fixing strength between the main rope 100 and the connecting block 205, the perforation is designed as an inverted frustum shape.

[0054] Regarding the arrangement of the stress relief sleeve 201, as a preferred embodiment, in order to further ensure the service life of the rigid rope and facilitate the replacement of the stress relief sleeve 201 that is fatigued and damaged, the stress relief sleeve 201 and the connector 203 are detachably connected.

[0055] Specifically, the stress relief connection device 200 further includes a fixed sleeve 202 vertically disposed on the lower outer ring of the connecting block, and the connecting block 205 of the connecting member 203 includes a main block and a connecting post at its lower end. The connecting post includes a first connecting section and a first clamping section, wherein the first connecting section is disposed close to the main block and its outer diameter is larger than the outer diameter of the first clamping section. The through hole is disposed through the main block and the connecting post, and an external thread 206 is provided on the outer ring of the first connecting section.

[0056] The fixing sleeve 202 is a cylindrical structure, including a second connecting section and a second clamping section. The outer diameters of the second connecting section and the second clamping section are the same, and the inner diameter of the second connecting section is smaller than that of the second clamping section. The inner ring of the second connecting section is provided with an internal thread 207 that mates with the external thread 206. The internal thread 207 is fitted onto the outer ring of the connecting column through the mating of the external thread 206. There is a gap between the lower inner ring of the fixing sleeve 202 (the inner ring of the second clamping section) and the lower outer ring of the connecting column (the outer ring of the first clamping section). The upper end of the stress-relieving sleeve 201 is fitted onto the lower outer ring of the connecting column and is squeezed and fixed by the fixing sleeve 202.

[0057] As a further preferred embodiment, the stress relief sleeve 201 is fitted to the outer ring of the main rope 100, that is, to the wear-resistant coating layer 103, so as to ensure that the bending stress generated by the main rope 100 can be better transferred to the stress relief sleeve 201.

[0058] Preferably, the stress relief sleeve 201 has a smooth transition between its upper and lower ends, that is, the stress relief sleeve 201 is an inverted frustum shape with its outer diameter gradually decreasing from the upper end to the lower end, so as to ensure that the stress relief sleeve 201 can more smoothly complete the stress release work through deformation.

[0059] Preferably, to ensure that the stress relief connection device 200 can be more easily connected to the component to be connected, the shape of the connector 204 is a closed U-shape, or the shape of the connector 204 is a closed ring, or the connection form of the connector 204 is a pin type.

[0060] This invention also provides a method for processing the above-mentioned novel lightweight rigid rope, specifically including the following steps:

[0061] S1, processing of main rope 100;

[0062] S1.1. Kevlar or Dyneema is twisted into strands by plying and then micro-twisting.

[0063] S1.2 Arrange several strands of wire in parallel to form a load-bearing tensile core layer 101;

[0064] In order to ensure the structural strength of the main rope 100 while facilitating the connection between the main rope 100 and the connector 203, in step S1.1, the diameter of the strand is 1-10mm;

[0065] S1.3, A braided support layer 102 is woven on the outer layer of the load-bearing tensile core layer 101 to cover the load-bearing tensile core layer 101;

[0066] To ensure the structural strength of the braided support layer 102, the braiding material of the braided support layer 102 is one or more of polypropylene fiber, polyester fiber, and polyamide fiber.

[0067] S1.4. The wear-resistant coating layer 103 covering the braided support layer 102 is formed on the outer layer of the braided support layer 102 by melt extrusion of the coating material;

[0068] The coating material is one of PVC, PE, TPE, or TPU granules;

[0069] S2, machining of connector 203;

[0070] S2.1. The blank of connector 203 (excluding external thread 206) is made by casting and then polished.

[0071] S2.2, Machining an external thread of 206 on the outer ring of the first connecting section;

[0072] S3, Machining of the fixed sleeve 202;

[0073] S3.1. The blank of the fixed sleeve 202 (excluding the internal thread 207) is made by casting and then the blank is polished.

[0074] S3.2. Machining an internal thread 207 that mates with the external thread 206 on the inner ring of the second connecting section;

[0075] S4, Machining of stress relief sleeve 201;

[0076] Stress-relieving sleeve 201 is manufactured by injection molding.

[0077] The stress relief sleeve 201 includes a third connecting section and a stress relief section. The third connecting section is a cylindrical structure with an inner diameter that matches the outer diameter of the first clamping section and an outer diameter that matches the inner diameter of the second clamping section. The stress relief section has a through hole in the middle that can accommodate the main rope 100 to pass through.

[0078] S5. Assembly and molding;

[0079] S5.1. Insert the stress relief sleeve 201 and the fixing sleeve 202 into one end of the main rope 100 in sequence;

[0080] The third connecting section of the stress-relieving sleeve 201 and the second connecting section of the fixing sleeve 202 are located near the ends of the main rope 100;

[0081] S5.2. Peel off the wear-resistant covering layer 103 and the braided support layer 102 at the end of the main rope 100 in sequence, so that the load-bearing tensile core layer 101 is exposed through the braided support layer 102, and the braided support layer 102 is exposed through the wear-resistant covering layer 103.

[0082] S5.3. Insert the end of the main rope 100 into the hole near the connecting post, and let the end of the load-bearing tensile core layer 101 extend out from the other end of the hole.

[0083] S5.4 Separate several strands of wire, pour resin 208 into the perforation and wait for it to cool and solidify;

[0084] S5.5 Insert the third connecting section of the stress relief sleeve 201 into the second clamping section of the fixing sleeve 202;

[0085] S5.6 Connect the second connecting section of the fixing sleeve 202 to the first connecting section of the connecting column with threads, and at the same time, fit the third connecting section of the stress relief sleeve 201 onto the first clamping section of the connecting column.

Claims

1. A new lightweight rigid rope, characterized in that, The stress relief connecting device (200) includes a main rope (100) and a stress relief sleeve (201) at the lower side of the connecting piece (203). The stress relief connecting device (200) includes a connecting piece (203) and a stress relief sleeve (201) at the lower side of the connecting piece (203). The connecting piece (203) includes a connecting block (205) and a connecting head (204) at the upper end of the connecting block (205), and a through hole is vertically arranged in the middle of the connecting block (205), and one end of the main rope (100) is fixed in the through hole by resin (208). The connecting block (205) includes a main block and a connecting column at the lower end of the main block, and the connecting column includes a first connecting section and a first clamping section, wherein the first connecting section is arranged close to the main block, and the outer diameter of the first connecting section is larger than that of the first clamping section, and the through hole is arranged through the main block and the connecting column, and the outer circle of the first connecting section is provided with external threads (206). The stress relief connecting device (200) further includes a fixing sleeve (202), which is a cylindrical structure and includes a second connecting section and a second clamping section, and the outer diameters of the second connecting section and the second clamping section are the same, and the inner diameter of the second connecting section is smaller than that of the second clamping section, and the inner circle of the second connecting section is provided with internal threads (207) matched with the external threads (206), and the stress relief sleeve (201) is clamped and fixed between the first clamping section and the second clamping section. The stress relief sleeve (201) is made of silicone rubber material, which is vertically arranged at the lower end of the connecting block (205), and the main rope (100) passes through the stress relief sleeve (201), and the outer diameter of the lower end of the stress relief sleeve (201) is smaller than that of the upper end. The stress relief sleeve (201) includes a third connecting section and a stress relief section, and the third connecting section is a cylindrical structure with an inner diameter matched with the outer diameter of the first clamping section and an outer diameter matched with the inner diameter of the second clamping section, and the stress relief section is provided with a through hole capable of accommodating the main rope (100) passing through the middle.

2. A novel lightweight rigid rope according to claim 1, characterized in that, The main rope (100) is arranged in the order of a load-bearing tensile core layer (101), a woven support layer (102) and a wear-resistant coating layer (103) from inside to outside.

3. A novel lightweight rigid rope as claimed in claim 1, characterized in that, The stress relief sleeve (201) and the connecting piece (203) are detachably connected.

4. A novel lightweight rigid rope according to claim 1, characterized in that, The stress relief sleeve (201) is in close contact with the outer circle of the main rope (100).

5. A novel lightweight rigid rope according to claim 1, characterized in that, The shape of the connecting head (204) is closed U-shaped, or the shape of the connecting head (204) is closed ring-shaped, or the connecting form of the connecting head (204) is bolt type.

6. A method for processing a new lightweight rigid rope according to any one of claims 1-5, characterized in that, The method comprises the following steps: S1, processing of the main rope (100); S2, processing of the connecting piece (203); The blank of the connecting piece (203) is made by casting, and the blank is polished, and then the external threads (206) are processed to make the connecting piece (203); S3, processing of the fixing sleeve (202): The blank of the fixing sleeve (202) is made by casting, and the blank is polished, and then the internal threads (207) are processed to make the fixing sleeve (202); S4, processing of the stress relief sleeve (201); The stress relief sleeve (201) is made by injection molding; S5, assembly forming; S5.1, the stress relief sleeve (201) and the fixed sleeve (202) are sequentially sleeved from one end of the main rope (100); The third connecting section of the stress relief sleeve (201) and the second connecting section of the fixed sleeve (202) are arranged close to the end of the main rope (100); S5.2, the wear-resistant coating layer (103) and the woven support layer (102) at the end of the main rope (100) are sequentially stripped, so that the load-bearing tensile core layer (101) leaks out of the woven support layer (102), and the woven support layer (102) leaks out of the wear-resistant coating layer (103); S5.3, the end of the main rope (100) is inserted into the hole from the end close to the connecting column to the end of the load-bearing tensile core layer (101) extending out of the other end of the hole; S5.4, several strands of thread are separated, and resin (208) is poured into the hole and cooled to form; S5.5, the third connecting section of the stress relief sleeve (201) is inserted into the second clamping section of the fixed sleeve (202); S5.6, the second connecting section of the fixed sleeve (202) is threadedly connected with the first connecting section of the connecting column, while the third connecting section of the stress relief sleeve (201) is sleeved on the first clamping section of the connecting column.

7. The method of processing a novel lightweight rigid rope according to claim 6, characterized in that, In step S1, the specific processing method of the main rope is: S1.1, Kevlar or Dyneema is made into a strand by plying and slightly twisting; S1.2, several strands of thread are arranged in parallel to form a load-bearing tensile core layer (101); S1.3, a woven support layer (102) covering the load-bearing tensile core layer (101) is woven on the outer layer of the load-bearing tensile core layer (101); S1.4, the covering material is formed into a wear-resistant coating layer (103) covering the woven support layer (102) by melt extrusion on the outer layer of the woven support layer (102).

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