High-temperature-resistant drag chain cable

Abstract

The utility model relates to the technical field of tow chain cables, in particular to a high-temperature-resistant tow chain cable, which is characterized in that when a tow chain is bent under the matching of a pin shaft during use, a plurality of groups of cable bodies are adaptively bent under the driving of a plurality of groups of tow chains, and meanwhile, the cable bodies are in rolling contact with the interior of the tow chain under the matching of a plurality of groups of sheath assemblies, so that the tow chain is prevented from being damaged. Friction loss between the cable body and a drag chain is reduced, and the service life is prolonged; comprising drag chains, cable bodies and pin shafts, every two adjacent drag chains are hinged through the pin shafts, the cable bodies penetrate through the inner sides of the drag chains, the cable further comprises sheath assemblies, the sheath assemblies are arranged on the outer side wall of the cable body, one sheath assembly is arranged on the inner side of one drag chain, and the sheath assemblies make rolling contact with the inner sides of the drag chains.

Description

Technical Field

[0001] The utility model relates to the technical field of drag chain cables, in particular to a high-temperature resistant drag chain cable. Background Art

[0002] Drag chain cable is a highly flexible special cable that can move back and forth with the drag chain without being easily worn out. It is called drag chain cable. It is also commonly called towing cable or tank chain cable.

[0003] In the prior art, a patent document with announcement number CN215731022U discloses a high-temperature resistant drag chain cable, comprising a drag chain and a drag chain cable slidably connected to the inside of the drag chain, the inner wall of the drag chain is provided with a limiting block, the outer surface of the drag chain cable is provided with a limiting groove matching the limiting block, the outer surface of the drag chain cable is provided with a connecting card block and a connecting card slot corresponding to the connecting card block, and the connecting card block on the drag chain cable can be connected with the connecting card slot on another drag chain cable.

[0004] During use, it was found that the connecting block of the drag chain cable and the inner side of the drag chain would produce relative movement, causing friction loss between the drag chain and the connecting block, thereby reducing the service life. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a high-temperature resistant drag chain cable with a prolonged service life.

[0006] The utility model discloses a high-temperature resistant drag chain cable, comprising a drag chain, a cable body and a pin shaft. Two adjacent groups of drag chains are hinged by pin shafts respectively, and multiple groups of cable bodies pass through the inner sides of the multiple groups of drag chains. The utility model also includes a sheath assembly. The outer side wall of the cable body is provided with multiple groups of sheath assemblies, and the inner side of a group of drag chains is provided with a group of sheath assemblies respectively, and the sheath assemblies are in rolling contact with the inner side of the drag chain. When in use, when the drag chain is bent under the cooperation of the pin shaft, the multiple groups of cable bodies are adaptively bent under the drive of the multiple groups of drag chains. At the same time, the cable bodies are in rolling contact with the inside of the drag chain under the cooperation of the multiple groups of sheath assemblies, thereby reducing the friction loss between the cable body and the drag chain and improving the service life.

[0007] Preferably, the sheath assembly includes a sheath body, a support frame, a No. 1 rotating shaft and a guide wheel. The sheath body is sleeved on the outside of the cable body. Multiple groups of support frames are respectively provided at the upper and lower ends of the sheath body. A group of No. 1 rotating shaft is rotatably provided on each group of support frames. A group of guide wheels is respectively installed on each group of No. 1 rotating shaft. Multiple groups of guide wheels are in rolling contact with the inner wall of the drag chain respectively; when the multiple groups of drag chains are bent, the cable body and the drag chain produce relative motion, and the sheath body moves with the cable body, so that the multiple groups of guide wheels are in rolling contact with the inner wall of the cable body, reducing the friction loss of the drag chain on the cable body, and also reducing the friction loss of the drag chain on the sheath body, thereby improving the service life.

[0008] Preferably, it also includes a No. 2 rotating shaft and a guide roller. Two groups of No. 2 rotating shafts are respectively rotatably provided on the left and right sides of the drag chain. A group of guide rollers is respectively provided on each group of No. 2 rotating shafts, and the cable body passes between the two groups of guide rollers on the same side; when multiple groups of drag chains are bent, multiple groups of guide rollers roll in contact with the cable body, and multiple groups of guide rollers rotate adaptively, avoiding the friction of the cable body on the left and right edges of the drag chain, and reducing the wear of the cable body.

[0009] Preferably, the cable body includes a cable conductor, a thermal insulation layer, an insulating layer, a metal shielding layer and an outer sheath, the outer side of the cable conductor is wrapped with a thermal insulation layer, the outer side of the thermal insulation layer is wrapped with an insulating layer, the outer side of the insulating layer is wrapped with a metal shielding layer, and the outer side of the metal shielding layer is wrapped with an outer sheath; the thermal insulation layer can isolate heat to prevent high temperature from damaging the cable conductor, the insulating layer can insulate the cable conductor from the outside to avoid leakage of the cable conductor, the metal shielding layer can shield external interference to ensure the normal operation of the cable conductor, and the outer sheath provides wear-resistant protection for the cable conductor, thermal insulation layer, insulating layer and metal shielding layer to increase service life.

[0010] Preferably, it further comprises a steel belt layer, which is provided between the metal shielding layer and the outer sheath; the steel belt layer is provided between the metal shielding layer and the outer sheath to improve the impact resistance of the entire cable.

[0011] Preferably, the outer side wall of the drag chain is provided with an anti-rust coating; the anti-rust coating reduces rust on the drag chain and increases the service life of the drag chain.

[0012] Preferably, the cable conductor is made of copper and the copper adopts a circular stranded structure.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: when in use, when the drag chain bends with the cooperation of the pin shaft, multiple groups of cable bodies are adaptively bent under the drive of the multiple groups of drag chains. At the same time, the cable bodies are in rolling contact with the inside of the drag chain with the cooperation of the multiple groups of sheath components, reducing the friction loss between the cable body and the drag chain and improving the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is an axonometric structural diagram of the present utility model;

[0015] Figure 2 yes Figure 1 A schematic diagram of the partially enlarged structure of the middle part A;

[0016] Figure 3 It is a schematic diagram of the explosion structure of the utility model;

[0017] Figure 4 yes Figure 3 A schematic diagram of the partially enlarged structure of part B in the middle;

[0018] Figure 5 It is an enlarged structural diagram of the cable body and sheath body;

[0019] Figure 6 It is a cross-sectional structural diagram of the cable body structure.

[0020] Markings in the accompanying drawings: 1. Drag chain; 2. Cable body; 3. Pin shaft; 4. Sheath body; 5. Support frame; 6. Rotating shaft No. 1; 7. Guide wheel; 8. Rotating shaft No. 2; 9. Guide roller; 10. Cable conductor; 11. Thermal insulation layer; 12. Insulation layer; 13. Metal shielding layer; 14. Outer sheath; 15. Steel belt layer. DETAILED DESCRIPTION

[0021] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be provided below with reference to the accompanying drawings. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present invention.

[0022] Example 1

[0023] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 As shown, the utility model is a high-temperature resistant drag chain cable, comprising a drag chain 1, a cable body 2 and a pin 3. Two adjacent groups of drag chains 1 are respectively hinged by the pin 3. Multiple groups of cable bodies 2 pass through the inner side of multiple groups of drag chains 1. The utility model also includes a sheath assembly. The outer wall of the cable body 2 is provided with multiple groups of sheath assemblies. There is a group of sheath assemblies inside each group of drag chains 1. The sheath assemblies are in rolling contact with the inner side of the drag chain 1.

[0024] like Figure 3 and Figure 5As shown, the sheath assembly includes a sheath body 4, a support frame 5, a number one rotating shaft 6 and a guide wheel 7. The sheath body 4 is sleeved on the outside of the cable body 2. Multiple groups of support frames 5 are respectively provided at the upper and lower ends of the sheath body 4. Each group of support frames 5 is rotatably provided with a group of number one rotating shaft 6. Each group of number one rotating shaft 6 is respectively installed with a group of guide wheels 7. The multiple groups of guide wheels 7 are respectively in rolling contact with the inner side wall of the drag chain 1.

[0025] like Figure 3 and Figure 4 As shown, it also includes a No. 2 rotating shaft 8 and a guide roller 9. Two groups of No. 2 rotating shafts 8 are respectively rotatably set on the left and right sides of the drag chain 1. A group of guide rollers 9 is respectively set on each group of No. 2 rotating shafts 8. The cable body 2 passes between the two groups of guide rollers 9 on the same side.

[0026] In this embodiment, when multiple groups of drag chains 1 are bent, the cable body 2 and the drag chains 1 produce relative movement, and the sheath body 4 moves with the cable body 2, so that the multiple groups of guide wheels 7 roll in contact with the inner side wall of the cable body 2, reducing the friction loss of the drag chain 1 to the cable body 2, and also reducing the friction loss of the drag chain 1 to the sheath body 4. When multiple groups of drag chains 1 are bent, the multiple groups of guide rollers 9 roll in contact with the cable body 2, and the multiple groups of guide rollers 9 rotate adaptively, avoiding the friction of the cable body 2 on the left and right edges of the drag chain 1, thereby reducing the wear of the cable body 2.

[0027] Example 2

[0028] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 As shown, the utility model is a high-temperature resistant drag chain cable, comprising a drag chain 1, a cable body 2 and a pin 3. Two adjacent groups of drag chains 1 are respectively hinged by the pin 3. Multiple groups of cable bodies 2 pass through the inner side of multiple groups of drag chains 1. The utility model also includes a sheath assembly. The outer wall of the cable body 2 is provided with multiple groups of sheath assemblies. There is a group of sheath assemblies inside each group of drag chains 1. The sheath assemblies are in rolling contact with the inner side of the drag chain 1.

[0029] like Figure 3 and Figure 5 As shown, the sheath assembly includes a sheath body 4, a support frame 5, a number one rotating shaft 6 and a guide wheel 7. The sheath body 4 is sleeved on the outside of the cable body 2. Multiple groups of support frames 5 are respectively provided at the upper and lower ends of the sheath body 4. Each group of support frames 5 is rotatably provided with a group of number one rotating shaft 6. Each group of number one rotating shaft 6 is respectively installed with a group of guide wheels 7. The multiple groups of guide wheels 7 are respectively in rolling contact with the inner side wall of the drag chain 1.

[0030] like Figure 3 and Figure 4As shown, it also includes a second rotating shaft 8 and a guide roller 9. Two groups of second rotating shafts 8 are rotatably provided on the left and right sides of the drag chain 1. Each group of second rotating shafts 8 is provided with a group of guide rollers 9. The cable body 2 passes between the two groups of guide rollers 9 on the same side.

[0031] like Figure 6 As shown, the cable body 2 includes a cable conductor 10, a thermal insulation layer 11, an insulating layer 12, a metal shielding layer 13 and an outer sheath 14. The outer side of the cable conductor 10 is wrapped with the thermal insulation layer 11, the outer side of the thermal insulation layer 11 is wrapped with the insulating layer 12, the outer side of the insulating layer 12 is wrapped with the metal shielding layer 13, and the outer side of the metal shielding layer 13 is wrapped with the outer sheath 14;

[0032] like Figure 6 As shown, a steel belt layer 15 is further included, and the steel belt layer 15 is arranged between the metal shielding layer 13 and the outer sheath 14.

[0033] In this embodiment, when multiple groups of drag chains 1 are bent, the cable body 2 and the drag chain 1 produce relative movement, and the sheath body 4 moves with the cable body 2, so that the multiple groups of guide wheels 7 are in rolling contact with the inner side wall of the cable body 2, reducing the friction loss of the drag chain 1 on the cable body 2, and also reducing the friction loss of the drag chain 1 on the sheath body 4. When multiple groups of drag chains 1 are bent, the multiple groups of guide rollers 9 are in rolling contact with the cable body 2, and the multiple groups of guide rollers 9 rotate adaptively, avoiding the friction of the cable body 2 on the left and right edges of the drag chain 1. The wear of the cable body 2 is reduced, the thermal insulation layer 11 can isolate the heat to prevent high temperature from damaging the cable conductor 10, the insulating layer 12 can insulate the cable conductor 10 from the outside to avoid leakage of the cable conductor 10, the metal shielding layer 13 can shield external interference to ensure the normal operation of the cable conductor 10, the outer sheath 14 provides wear-resistant protection for the cable conductor 10, the thermal insulation layer 11, the insulating layer 12 and the metal shielding layer 13, and the steel belt layer 15 is arranged between the metal shielding layer 13 and the outer sheath 14 to improve the impact resistance of the entire cable.

[0034] The drag chain 1 and the cable conductor 10 of the high-temperature resistant drag chain cable of the utility model are purchased on the market. Technicians in this industry only need to install and operate them according to the accompanying instruction manual without the need for creative work by technicians in this field.

[0035] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A high temperature resistant drag chain cable, comprising a drag chain (1), a cable body (2) and a pin (3), wherein two adjacent groups of drag chains (1) are hinged via the pin (3), and multiple groups of cable bodies (2) pass through the inner side of multiple groups of drag chains (1), characterized in that: It also includes a sheath assembly, wherein the outer wall of the cable body (2) is provided with a plurality of sheath assemblies, and each of the inner sides of a group of drag chains (1) has a group of sheath assemblies, and the sheath assemblies are in rolling contact with the inner side of the drag chains (1); The sheath assembly comprises a sheath body (4), a support frame (5), a No. 1 rotating shaft (6) and a guide wheel (7). The sheath body (4) is sleeved on the outer side of the cable body (2). A plurality of support frames (5) are respectively provided at the upper and lower ends of the sheath body (4). A group of No. 1 rotating shaft (6) is rotatably provided on each group of support frames (5). A group of guide wheels (7) is respectively installed on each group of No. 1 rotating shaft (6). The plurality of guide wheels (7) are respectively in rolling contact with the inner side wall of the drag chain (1).

2. A high temperature resistant drag chain cable according to claim 1, characterized in that: It also includes a No. 2 rotating shaft (8) and a guide roller (9). Two groups of No. 2 rotating shafts (8) are rotatably provided on the left and right sides of the drag chain (1), and a group of guide rollers (9) are respectively provided on each group of No. 2 rotating shafts (8). The cable body (2) passes between the two groups of guide rollers (9) on the same side.

3. A high temperature resistant drag chain cable according to claim 1, characterized in that: The cable body (2) comprises a cable conductor (10), a heat insulation layer (11), an insulating layer (12), a metal shielding layer (13) and an outer sheath (14); the outer side of the cable conductor (10) is wrapped with the heat insulation layer (11); the outer side of the heat insulation layer (11) is wrapped with the insulating layer (12); the outer side of the insulating layer (12) is wrapped with the metal shielding layer (13); and the outer side of the metal shielding layer (13) is wrapped with the outer sheath (14).

4. A high temperature resistant drag chain cable according to claim 3, characterized in that: It also comprises a steel belt layer (15), wherein the steel belt layer (15) is arranged between the metal shielding layer (13) and the outer sheath (14).

5. A high temperature resistant drag chain cable according to claim 1, characterized in that: The outer side wall of the drag chain (1) is provided with a rust-proof coating.

6. A high temperature resistant drag chain cable according to claim 3, characterized in that: The cable conductor (10) is made of copper, and the copper adopts a circular stranded structure.

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