High-strength bending-resistant 10kv medium-voltage coal mining machine cable

Abstract

The utility model discloses a high-strength bending-resistant 10kv medium-voltage coal mining machine cable, which relates to the technical field of medium-voltage cables and comprises a cable main body, the cable main body comprises a wear-resistant sheath, a shielding layer is fixedly sleeved inside the wear-resistant sheath, a plurality of groups of cable inner cores are sleeved on the inner wall of the shielding layer, and a plurality of groups of cable outer cores are sleeved on the inner wall of the shielding layer. Reinforcing ribs are fixedly connected to the inner wall of the shielding layer, the shielding layer is filled with an insulating glue pouring layer, and multiple sets of elastic strips are fixedly connected to the outer wall of the wear-resistant outer skin. According to the utility model, the wall body of the whole cable is lifted through the reinforcing ribs, and the elastic strip is arranged outside the wear-resistant sheath, so that when the cable is bent, the resilience force of the elastic strip can provide certain support for the cable, the cable is prevented from being damaged due to excessive bending, and through the supporting sleeve, the cable is prevented from being damaged. Therefore, the connection part of the cable and the power distribution cabinet on the coal mining machine is not bent at a large angle.

Description

Technical Field

[0001] This utility model relates to the field of medium-voltage cable technology, specifically a high-strength, bend-resistant 10kV medium-voltage coal mining machine cable. Background Technology

[0002] High-strength cables are generally used in coal mining machines or mining conveying machinery. They need to be frequently moved and moved around during use, and are constantly moved, dragged, and bent along with the machine, which causes severe cable wear. Existing high-strength cables generally include an outer rubber layer, but under high-intensity wear and bending, the rubber layer cannot meet the needs of use, leading to breakage and wear of the outer rubber layer, which in turn exposes the internal conductors and causes accidents. Therefore, a new type of high-strength cable is needed.

[0003] A prior patent (publication number: CN 214410839U) discloses a high-strength, special bend-resistant, and tensile-resistant cable, comprising a conductor unit, an insulation layer on the outside of the conductor unit, a high-strength tensile-resistant layer on the outside of the insulation layer, and an outer sheath on the outside of the high-strength tensile-resistant layer. The conductor unit is characterized by being made of multiple strands of tin-plated soft copper stranded wire and special aramid fiber reinforcement, bundled together. The high-strength tensile-resistant layer is woven from tin-plated copper wire. Through the inclusion of components such as the high-strength tensile-resistant layer, it possesses excellent bending resistance, torsional resistance, high tensile strength, tear resistance, abrasion resistance, and aging resistance. It meets the requirements of high-strength, reciprocating motion environments and is particularly suitable for applications such as high-speed elevators, port crane cable carriers, coal mines, and oil platforms, demonstrating excellent performance.

[0004] However, the above technical solutions still have certain defects. During use, when the cable body is bent, the cable itself has weak elasticity, which means that the cable cannot resist the bending force on its own when it is bent. Long-term bending will cause the cable to break. Therefore, a high-strength bending-resistant 10kV medium-voltage coal mining machine cable is proposed. Utility Model Content

[0005] Based on this, the purpose of this utility model is to provide a high-strength, bend-resistant 10kV medium-voltage coal mining machine cable to solve the technical problems mentioned in the background.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-strength, bend-resistant 10kV medium-voltage coal mining machine cable, comprising a cable body, the cable body including an abrasion-resistant outer sheath, a shielding layer fixedly sleeved inside the abrasion-resistant outer sheath, multiple sets of cable cores sleeved on the inner wall of the shielding layer, reinforcing ribs fixedly connected to the inner wall of the shielding layer, an insulating potting layer filling the interior of the shielding layer, and multiple sets of elastic strips fixedly connected to the outer wall of the abrasion-resistant outer sheath.

[0007] As a preferred technical solution for a high-strength, bend-resistant 10kV medium-voltage coal mining machine cable of this utility model, multiple sets of the cable inner cores are divided by reinforcing ribs.

[0008] As a preferred technical solution for a high-strength, bend-resistant 10kV medium-voltage coal mining machine cable of this utility model, the outer wall of multiple sets of elastic strips is fixedly fitted with a fixed joint, and the fixed joint includes a fixed sleeve.

[0009] As a preferred technical solution for a high-strength, bend-resistant 10kV medium-voltage coal mining machine cable of this utility model, the inner wall of the fixed sleeve is slidably connected with multiple sets of sliding strips, and the ends of the sliding strips extend to the outside of the fixed sleeve.

[0010] As a preferred technical solution for a high-strength, bend-resistant 10kV medium-voltage coal mining machine cable of this utility model, each set of sliding strips has a set of abutment plates hinged to its side wall. The abutment plates are provided with torsion springs at the connection with the sliding strips, and the ends of the abutment plates extend to the outside of the fixed sleeve.

[0011] As a preferred technical solution for a high-strength, bend-resistant 10kV medium-voltage coal mining machine cable of this utility model, a connecting ring is provided on the outer wall of the fixed sleeve, the connecting ring is fixedly connected to the end of the sliding strip, and a threaded sleeve is threadedly connected to the outer wall of the fixed sleeve, the threaded sleeve being rotatably connected to the side wall of the connecting ring.

[0012] As a preferred technical solution for a high-strength, bend-resistant 10kV medium-voltage coal mining machine cable of this utility model, the side wall of the fixed sleeve is hinged with multiple sets of support sleeves, the multiple sets of support sleeves are connected end to end, and the rotation angle between two adjacent sets of support sleeves differs by ninety degrees.

[0013] In summary, the present invention has the following main advantages:

[0014] 1. This utility model uses reinforcing ribs to lift the entire cable wall, and provides an elastic strip on the outside of the wear-resistant outer sheath so that when the cable is bent, the rebound force of the elastic strip can provide a certain support for the cable, preventing the cable from being damaged by excessive bending. In addition, the support sleeve prevents the connection between the cable and the distribution cabinet on the coal mining machine from being bent at a large angle.

[0015] 2. This utility model inserts the abutment plate through the cable hole on the distribution cabinet, so that the abutment plate abuts against the inner wall of the distribution cabinet. The abutment plate and the edge of the support sleeve are clamped on the side wall of the distribution cabinet, thereby preventing the cable from being disconnected from the electrical equipment inside the distribution cabinet when the cable is pulled, thus ensuring the stability of the coal mining machine during operation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the rear view structure of this utility model;

[0018] Figure 3 This is an enlarged structural diagram of point A in this utility model;

[0019] Figure 4 This is a front view exploded structural diagram of the fixed structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the support sleeve structure of this utility model.

[0021] In the diagram: 1. Cable body; 2. Fixed connector;

[0022] 101. Abrasion-resistant outer sheath; 102. Shielding layer; 103. Cable inner core; 104. Reinforcing ribs; 105. Insulating potting layer; 106. Elastic strip;

[0023] 201. Fixed sleeve; 202. Sliding bar; 203. Abutment plate; 204. Connecting ring; 205. Threaded sleeve; 206. Support sleeve. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0025] The embodiments of this utility model will be described below based on its overall structure.

[0026] A high-strength, bend-resistant 10kV medium-voltage coal mining machine cable, such as... Figures 1 to 5 As shown, the cable includes a cable body 1, which includes an anti-abrasion outer sheath 101. A shielding layer 102 is fixedly sleeved inside the anti-abrasion outer sheath 101. Multiple sets of cable cores 103 are sleeved on the inner wall of the shielding layer 102. Reinforcing ribs 104 are fixedly connected to the inner wall of the shielding layer 102. An insulating potting layer 105 is filled inside the shielding layer 102. Multiple sets of elastic strips 106 are fixedly connected to the outer wall of the anti-abrasion outer sheath 101. The multiple sets of cable cores 103 are separated by the reinforcing ribs 104. Multiple sets of support sleeves 206 are hinged to the side wall of the fixed sleeve 201. The multiple sets of support sleeves 206 are connected end to end, and the rotation angle between two adjacent sets of support sleeves 206 differs by ninety degrees.

[0027] The reinforcing ribs 104 enhance the overall cable structure, and the elastic strips 106 are provided on the outside of the abrasion-resistant outer sheath 101. When the cable is bent, the rebound force of the elastic strips 106 can provide some support for the cable, preventing it from being damaged by excessive bending. Furthermore, the support sleeves 206 limit the rotation angle between the support sleeves 206 when the cable body 1 is bent, preventing the cable body 1 from bending at a large angle and ensuring that the connection between the cable and the distribution cabinet on the coal mining machine will not break due to large-angle bending.

[0028] Please refer to this carefully. Figure 4 and Figure 5 A fixed joint 2 is fixedly sleeved on the outer wall of multiple sets of elastic strips 106. The fixed joint 2 includes a fixed sleeve 201. Multiple sets of sliding strips 202 are slidably connected to the inner wall of the fixed sleeve 201. The ends of the sliding strips 202 extend to the outside of the fixed sleeve 201. A set of abutment plates 203 are hinged to the side wall of each set of sliding strips 202. A torsion spring is provided at the connection between the abutment plate 203 and the sliding strip 202. The end of the abutment plate 203 extends to the outside of the fixed sleeve. A connecting ring 204 is sleeved on the outer wall of the fixed sleeve 201. The connecting ring 204 is fixedly connected to the end of the sliding strip 202. A threaded sleeve 205 is threadedly connected to the outer wall of the fixed sleeve 201. The threaded sleeve 205 is rotatably connected to the side wall of the connecting ring 204.

[0029] By inserting the fixed sleeve 201 through the wire hole on the coal mining machine distribution cabinet, the abutment plate 203 is pushed by the wire hole and reversed, causing the torsion spring to twist. When the abutment plate 203 is fully slid into the distribution cabinet, the torsion spring rebounds and pushes the abutment rod to reset. The side wall of the abutment plate 203 is in contact with the sliding strip 202. Therefore, after the abutment plate 203 rebounds to be perpendicular to the sliding strip 202, it cannot continue to flip. Then, the fixed sleeve is pushed so that the outer wall at the edge of the fixed sleeve is in contact with the outer wall of the distribution cabinet. Then, the threaded sleeve 205 is rotated so that the threaded sleeve 205 moves, thereby driving the connecting ring 204. The connecting ring 204 pulls the sliding strip 202, and the sliding strip 202 drives the abutment plate 203 to contact the inner wall of the distribution cabinet, so that the abutment plate 203 is tightly in contact with the inner wall of the distribution cabinet, so that the cable body 1 and the distribution cabinet will not loosen.

[0030] In use, the reinforcing ribs 104 lift the entire cable wall, and an elastic strip 106 is provided on the outside of the abrasion-resistant outer sheath 101. When the cable is bent, the rebound force of the elastic strip 106 can provide a certain support for the cable, preventing the cable from being damaged by excessive bending. Furthermore, the support sleeve 206 prevents the connection between the cable and the distribution cabinet on the coal mining machine from being bent at a large angle. All parts not mentioned in this device are the same as or can be implemented using existing technology.

[0031] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A high-strength, bend-resistant 10kV medium-voltage coal mining machine cable, comprising a cable body (1), characterized in that: The cable body (1) includes an anti-abrasion outer sheath (101), a shielding layer (102) is fixedly sleeved inside the anti-abrasion outer sheath (101), multiple sets of cable inner cores (103) are sleeved on the inner wall of the shielding layer (102), reinforcing ribs (104) are fixedly connected to the inner wall of the shielding layer (102), an insulating potting layer (105) is filled inside the shielding layer (102), and multiple sets of elastic strips (106) are fixedly connected to the outer wall of the anti-abrasion outer sheath (101).

2. The high-strength, bend-resistant 10kV medium-voltage coal mining machine cable according to claim 1, characterized in that: Multiple sets of the cable cores (103) are separated by reinforcing ribs (104).

3. The high-strength, bend-resistant 10kV medium-voltage coal mining machine cable according to claim 1, characterized in that: The outer wall of the multiple sets of elastic strips (106) is fixedly fitted with a fixing joint (2), the fixing joint (2) including a fixing sleeve (201).

4. A high-strength, bend-resistant 10kV medium-voltage coal mining machine cable according to claim 3, characterized in that: The inner wall of the fixed sleeve (201) is slidably connected with multiple sets of sliding strips (202), and the ends of the sliding strips (202) extend to the outside of the fixed sleeve (201).

5. A high-strength, bend-resistant 10kV medium-voltage coal mining machine cable according to claim 4, characterized in that: Each set of sliding bars (202) has a set of abutment plates (203) hinged to its side wall. The abutment plates (203) are provided with torsion springs at the connection with the sliding bars (202), and the ends of the abutment plates (203) extend to the outside of the fixed sleeve.

6. A high-strength, bend-resistant 10kV medium-voltage coal mining machine cable according to claim 3, characterized in that: The outer wall of the fixed sleeve (201) is fitted with a connecting ring (204), the connecting ring (204) is fixedly connected to the end of the sliding bar (202), and the outer wall of the fixed sleeve (201) is threadedly connected with a threaded sleeve (205), the threaded sleeve (205) is rotatably connected to the side wall of the connecting ring (204).

7. A high-strength, bend-resistant 10kV medium-voltage coal mining machine cable according to claim 3, characterized in that: The side wall of the fixed sleeve (201) is hinged with multiple sets of support sleeves (206), which are connected end to end, and the rotation angle between two adjacent sets of support sleeves (206) differs by ninety degrees.

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