Cable with protection mechanism

Abstract

The utility model belongs to the technical field of cables for coal mining machines, and particularly relates to a cable with a protection mechanism, which comprises a buffer layer, a plurality of insulating layers arranged in the buffer layer, thin-wall seamless stainless steel tubes arranged in the insulating layers, and silicon-based fiber paste filled in the thin-wall seamless stainless steel tubes. Through the arrangement of the protective layer, the compression-resistant layer and the elastic layer, the cable can bear large physical pressure, pulling force and impact, it is ensured that the cable is not prone to being damaged in the falling and impacting process of coal gangue or large coal briquettes, the inner layer of the cable can be effectively protected when the cable is subjected to external force, and the cable can be effectively protected against external damage; the cable has good elasticity and can keep long-time performance in a high-strength friction environment, and the surface of the cable is prevented from being abraded; and the plurality of steel wires can wrap the shielding layer to form a layer of metal cover, so that coal gangue or large coal briquettes on the working surface of the coal mining machine can be more effectively prevented from falling, punching and smashing, and the cable core is prevented from being damaged by external mechanical force in the use process.

Description

TECHNICAL FIELD

[0001] The utility model belongs to coal cutter cable technical field especially relates to a cable with protection mechanism. BACKGROUND

[0002] In recent years, with the improvement of coal production capacity, remote control coal cutter is used a lot in underground. Coal cutter cable mainly provides power and control signal transmission for coal cutter, and ensures normal operation of coal cutter.

[0003] Coal cutter cable is often damaged by coal gangue or large coal block, and even the internal core wire is broken. The coal gangue or coal block accumulated in the cable groove may scratch the cable sheath during the movement of the cable, resulting in the cable sheath being scratched or even the internal core wire being broken. Once the coal cutter cable fails, the common treatment method is to replace the cable directly, which has the disadvantage of high cost, especially the long cable with a price of millions of dollars, which increases the operating cost of coal mine enterprises. In view of this, we provide a cable with protection mechanism. UTILITY MODEL CONTENTS

[0004] The utility model is to provide a cable with protection mechanism to solve the problems in the background.

[0005] Therefore, the utility model provides a cable with protection mechanism, which comprises:

[0006] The buffer layer is provided with a plurality of insulation layers, the insulation layer is provided with a thin-walled seamless stainless steel pipe, the thin-walled seamless stainless steel pipe is filled with silicon-based fiber paste, and the silicon-based fiber paste is provided with a wire core.

[0007] The shielding layer is sleeved on the buffer layer, the shielding layer is sleeved with an elastic layer, the elastic layer is provided with a plurality of protection layers in the shape of a spiral, the protection layer is provided with a steel wire, the elastic layer is sleeved with a pressure-resistant layer, and the pressure-resistant layer is sleeved with a protective layer.

[0008] In the technical scheme, the protective layer, the pressure-resistant layer and the elastic layer can be used for a long time in the harsh environment of coal mine, have high mechanical strength and tensile resistance, can bear large physical pressure, tension and impact, are not easy to be damaged during the falling and impact of coal gangue or large coal block, can effectively protect the inner layer of the cable when subjected to external force, can effectively protect the cable from external damage, have good elasticity and can maintain long-time performance in high-strength friction environment, avoid the surface of the cable from being worn, and can maintain excellent performance in extremely low temperature and high temperature environment, are not easy to become brittle or soften, and are suitable for relatively extreme temperature conditions.

[0009] In the technical scheme, further, the protective layer is tightly bonded with the compression-resistant layer, and the compression-resistant layer is tightly bonded with the elastic layer.

[0010] In the technical scheme, the structural stability between the protective layer, the compression-resistant layer and the elastic layer is ensured.

[0011] The protective layer is made of polyvinyl chloride material, which has good insulation performance, can effectively isolate the current, prevent current leakage or short circuit, and ensure the safety of the cable during use; has good chemical corrosion resistance, can effectively resist the corrosion of chemical substances such as acid, alkali, salt and oil, so it can be used for a long time in the harsh environment of coal mine; has high mechanical strength and tensile resistance, so that the cable can withstand a large physical pressure, tension and impact, and ensure that it is not easily damaged during the process of coal gangue or large coal block falling and impacting; and has good flame retardant performance when encountering fire, which can effectively reduce the risk of fire accidents; has good ultraviolet resistance, oxidation resistance and aging resistance, and can maintain stable performance for a long time under high temperature and low temperature conditions in coal mine; polyvinyl chloride is a relatively inexpensive plastic material, with low manufacturing cost, suitable for mass production, so the overall cost of the cable can be effectively reduced.

[0012] The compression-resistant layer is made of polyethylene material, which has good insulation performance and helps to reduce the leakage of external current of the cable; has good chemical corrosion resistance, suitable for environments contacting water, oil, acid and alkali; has a certain impact resistance, which can effectively protect the inner layer of the cable when subjected to external force.

[0013] The elastic layer is made of polyurethane material, which has high tensile strength, wear resistance and impact resistance, can effectively protect the cable from external damage; has good elasticity and can maintain performance for a long time in high-strength friction environment, avoiding the wear of the surface of the cable; can still maintain excellent performance in extremely low temperature and high temperature environments, and is not easy to become brittle or soften, suitable for relatively extreme temperature conditions.

[0014] In the technical scheme, further, the elastic layer is tightly bonded with the protective layer, and the steel wire has a spiral shape structure.

[0015] In the technical scheme, the structural stability of the elastic layer and the protective layer is ensured, and the shielding layer is wrapped by the steel wire to form a metal cover, so that the overall device is not easily damaged even if coal gangue or large coal block falls and impacts.

[0016] In the technical scheme, further, the protective layer is tightly bonded with the shielding layer, and the shielding layer is tightly bonded with the buffer layer.

[0017] In the technical solution, the protective layer is a fiber-reinforced protective layer, the fiber-reinforced material can provide strong tensile resistance to avoid cable breakage in long-term use; the fiber material has strong high-temperature resistance and corrosion resistance, and is suitable for use in harsh environments; the shielding layer is made of aluminum foil, which can effectively prevent external electromagnetic wave interference; the aluminum foil is light in weight and low in cost, and is suitable for large-scale production; the aluminum foil material is soft and can easily adapt to the shape and bending of the cable.

[0018] In the above technical solution, further, the buffer layer is tightly bonded with the insulation layer, and the insulation layer is tightly bonded with the thin-walled seamless stainless steel pipe.

[0019] In the technical solution, the buffer layer is made of cross-linked polyethylene material, which has strong high-temperature resistance and is suitable for use in high-temperature environments; it has better tensile strength, compressive strength and impact resistance; under extreme external stress, the buffer layer shows better durability; especially good electrical insulation performance.

[0020] In the above technical solution, further, the wire core is located at the center position of the silicon-based fiber paste.

[0021] In the technical solution, the wire core is wrapped by the silicon-based fiber paste and the thin-walled seamless stainless steel pipe, and the wire core is protected again by the thin-walled seamless stainless steel pipe.

[0022] In the above technical solution, further, the spacing between every two protective layers is 0.4-0.8cm, and the diameter of the steel wire is 0.1-0.3cm

[0023] In the technical solution, it is ensured that the protective cover composed of several steel wires can more effectively resist the impact of coal gangue or large coal blocks falling on the coal mining machine working face, and avoid damage to the cable core caused by external mechanical force during use.

[0024] The beneficial effects of the utility model are:

[0025] 1. The cable with protection mechanism, through the setting protection layer, compression resistance layer and elastic layer, can be used for a long time in the harsh environment conditions of coal mine, has high mechanical strength and tensile resistance, enables the cable to bear greater physical pressure, tension and impact, ensures that the cable is not easy to be damaged in the process of coal gangue or large coal block falling and impacting, can effectively protect the cable inner layer when subjected to external force, can effectively protect the cable from external damage, has good elasticity and can maintain performance for a long time in high-strength friction environment, avoids that the cable surface is abraded, can still maintain excellent performance in extremely low temperature and high temperature environment, is not easy to become brittle or soften, is suitable for relatively extreme temperature conditions, and the shielding layer is wrapped by the steel wires to form a layer of metal cover, which ensures that the cable can more effectively resist the coal gangue or large coal block falling and impacting of the coal mining machine working face, and avoids that the cable core is damaged by external mechanical force in the use process.

[0026] 2. The cable with protection mechanism, through the setting protection layer, buffer layer and thin-walled seamless stainless steel pipe, can avoid that the cable is broken in long-time use, enables the cable to have strong high-temperature resistance and corrosion resistance, is suitable for use in harsh environment, has better tensile strength, compressive strength and impact resistance, exhibits better durability under extreme external stress, and has good electrical insulation performance. BRIEF DESCRIPTION OF DRAWINGS

[0027] Fig. 1 It is one of the overall structure schematic views of the utility model;

[0028] Fig. 2 It is the second overall structure schematic view of the utility model;

[0029] Fig. 3 It is a combination structure schematic view of the steel wires in the utility model.

[0030] The marks in the figure are:

[0031] 1, protection layer; 2, compression resistance layer; 3, elastic layer; 4, protection layer; 41, steel wire; 5, shielding layer; 6, buffer layer; 7, insulation layer; 8, thin-walled seamless stainless steel pipe; 9, silicon-based fiber paste; 10, core. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the application will be clearly described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art belong to the scope of protection of the application.

[0033] In the description of the present application, it should be noted that the terms used herein are merely for the purpose of describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. For the purpose of description, the sizes of the respective portions shown in the drawings are not drawn in accordance with the actual proportional relationship. The techniques, methods, and devices known to those of ordinary skill in the relevant art can not be discussed in detail, but should be considered as part of the authorized description. In all examples shown and discussed herein, any specific value should be interpreted as merely exemplary and not as a limitation. Therefore, other examples of exemplary embodiments can have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0034] It should be noted that the terms "first", "second", and the like in the description and claims of the present application are used to distinguish similar objects, and are not used to describe a particular order or sequence. It should be understood that the data used in this way can be interchanged, so that the embodiments of the present application can be implemented in an order other than that illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally a class, and do not limit the number of objects, for example, the first object can be one or more. In addition, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / ", generally indicates that the associated objects before and after are in an "or" relationship.

[0035] It should be noted that in the description of the present application, the orientation or position relationship indicated by the terms such as "front, rear, upper, lower, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" is generally based on the orientation or position relationship shown in the drawings, and is only for the purpose of facilitating the description of the present application and simplifying the description. Without the opposite indication, these orientation terms do not indicate and imply that the indicated device or element must have a particular orientation or be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the scope of protection of the present application; the orientation terms "inner, outer" refer to the inner and outer relative to the contour of each component.

[0036] It should be noted that in this application, the terms "comprising", "including", or any other variant thereof are intended to cover a non-exclusive inclusion, so that a process, method, article, or apparatus that includes a list of elements not only includes those elements, but also includes other elements not expressly listed or inherent to such process, method, article, or apparatus. Without more limitations, the element defined by the statement "comprising a" does not exclude the presence of additional identical elements in the process, method, article, or apparatus including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, but can also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method can be performed in an order different from that described, and various steps can also be added, omitted, or combined. In addition, the features described with reference to certain examples can be combined in other examples.

[0037] Embodiment 1:

[0038] Please refer to Figs. 1-3 The embodiment provides a cable with a protection mechanism, which comprises:

[0039] A buffer layer 6 is provided with a plurality of insulation layers 7, the insulation layers 7 are provided with thin-walled seamless stainless steel pipes 8, the thin-walled seamless stainless steel pipes 8 are filled with silicon-based fiber paste 9, and the silicon-based fiber paste 9 is provided with a wire core 10.

[0040] A shielding layer 5 is provided on the buffer layer 6, the shielding layer 5 is provided with an elastic layer 3, the elastic layer 3 is provided with a plurality of protection layers 4 in a spiral shape, the protection layers 4 are provided with steel wires 41, the elastic layer 3 is provided with a pressure-resistant layer 2, and the pressure-resistant layer 2 is provided with a protective layer 1.

[0041] The protective layer 1, the pressure-resistant layer 2 and the elastic layer 3 can be used for a long time in a harsh environment of a coal mine, have high mechanical strength and tensile properties, so that the cable can withstand a large physical pressure, tension and impact, and is not easy to be damaged in the process of being hit by coal gangue or large coal blocks, can effectively protect the inner layer of the cable when subjected to external force, can effectively protect the cable from external damage, has good elasticity and can maintain the performance for a long time in a high-strength friction environment, avoids the surface of the cable from being abraded, and still has excellent performance in an extremely low temperature and high temperature environment, is not easy to become brittle or soften, and is suitable for relatively extreme temperature conditions.

[0042] By setting the protective layer 4, the buffer layer 6 and the thin-walled seamless stainless steel pipe 8, the cable can avoid breaking in long-term use; the cable has strong high-temperature resistance and corrosion resistance, is suitable for use in harsh environments, has better tensile strength, compressive strength and impact resistance; under extreme external stress, the cable shows better durability; and has good electrical insulation performance.

[0043] Embodiment 2:

[0044] The embodiment provides a cable with a protection mechanism, in addition to the technical solutions of the above-mentioned embodiments, further having the following technical features: the protective layer 1 is tightly bonded with the compression-resistant layer 2, and the compression-resistant layer 2 is tightly bonded with the elastic layer 3.

[0045] Among them, the structural stability between the protective layer 1 and the compression-resistant layer 2 and the elastic layer 3 is ensured;

[0046] The protective layer 1 is made of polyvinyl chloride material, which has good insulation performance, can effectively isolate the current, prevent current leakage or short circuit, and ensure the safety of the cable in use; has good chemical corrosion resistance, can effectively resist the corrosion of chemical substances such as acid, alkali, salt and oil, so it can be used in coal mine under harsh environmental conditions for a long time; has high mechanical strength and tensile properties, so that the cable can withstand large physical pressure, tension and impact, and ensure that it is not easily damaged in the process of coal gangue or large coal block falling and impacting; and has good flame retardant performance when encountering fire, which can effectively reduce the risk of fire accidents; has good ultraviolet resistance, oxidation resistance and aging resistance, and can maintain stable performance for a long time under high temperature and low temperature conditions in the coal mine; polyvinyl chloride is a relatively inexpensive plastic material, the manufacturing cost is low, and it is suitable for mass production, so the overall cost of the cable can be effectively reduced.

[0047] The compression-resistant layer 2 is made of polyethylene material, which has good insulation performance and helps to reduce the leakage of external current of the cable; has good chemical corrosion resistance, is suitable for environments contacting water, oil, acid and alkali; has certain impact resistance and can effectively protect the inner layer of the cable when subjected to external force.

[0048] The elastic layer 3 is made of polyurethane material, which has high tensile strength, wear resistance and impact resistance, can effectively protect the cable from external damage; has good elasticity and can maintain performance for a long time in high-strength friction environment, avoiding the wear of the surface of the cable; still has excellent performance in extremely low temperature and high temperature environments, is not easy to become brittle or soften, and is suitable for relatively extreme temperature conditions.

[0049] Embodiment 3:

[0050] The embodiment provides a cable with a protection mechanism, in addition to comprising the technical scheme of the above embodiment, further has the following technical features, the elastic layer 3 is closely bonded with the protection layer 4, and the steel wire 41 is in a spiral shape structure.

[0051] Wherein, the structure stability of the elastic layer 3 and the protection layer 4 is ensured, and the shielding layer 5 is wrapped by the steel wire 41 to form a metal cover, so that even if coal gangue or large coal blocks fall and hit, the overall device is not easy to cause serious damage.

[0052] Embodiment 4:

[0053] The embodiment provides a cable with a protection mechanism, in addition to comprising the technical scheme of the above embodiment, further has the following technical features, the protection layer 4 is closely bonded with the shielding layer 5, and the shielding layer 5 is closely bonded with the buffer layer 6.

[0054] Wherein, the protection layer 4 is a fiber reinforced protection layer, the fiber reinforced material can provide strong tensile strength, avoid the cable from breaking in long time use, the fiber material has strong high temperature resistance and corrosion resistance, and is suitable for use in harsh environment, the shielding layer 5 is made of aluminum foil, can effectively prevent external electromagnetic wave interference, the aluminum foil is light in quality and low in cost, and is suitable for use in large-scale production, and the aluminum foil material is soft, and can easily adapt to the shape and bending of the cable.

[0055] Embodiment 5:

[0056] The embodiment provides a cable with a protection mechanism, in addition to comprising the technical scheme of the above embodiment, further has the following technical features, the buffer layer 6 is closely bonded with the insulation layer 7, and the insulation layer 7 is closely bonded with the thin-walled seamless stainless steel pipe 8.

[0057] Wherein, the buffer layer 6 is made of cross-linked polyethylene material, the material has strong high temperature resistance and is suitable for cables in high temperature environment, has better tensile strength, compressive strength and impact resistance, and has better durability under extreme external stress, and has good electrical insulation performance.

[0058] Embodiment 6:

[0059] The embodiment provides a cable with a protection mechanism, in addition to comprising the technical scheme of the above embodiment, further has the following technical features, the wire core 10 is located at the center position of the silicon-based fiber paste 9.

[0060] Wherein, the wire core 10 is wrapped by the silicon-based fiber paste 9 and the thin-walled seamless stainless steel pipe 8, and the thin-walled seamless stainless steel pipe 8 protects the wire core 10 again.

[0061] Embodiment 7:

[0062] The embodiment provides the cable with the protection mechanism, in addition to comprising the technical scheme of the above embodiment, and further has the following technical features: the interval between each two protection layers 4 is 0.4-0.8 cm, and the diameter of the steel wire 41 is 0.1-0.3 cm.

[0063] Wherein, the protection cover composed of the several steel wires 41 can more effectively resist the coal gangue or large coal block falling and impacting on the coal mining machine working face, and damage of the cable core 10 caused by external mechanical force in the use process is avoided.

[0064] The embodiments of the application are described above in combination with the drawings, the embodiments in the application and the features in the embodiments can be combined with each other without conflicts, the application is not limited to the above specific embodiments, the above specific embodiments are only illustrative but not limited, and those skilled in the art can make many forms under the inspiration of the application without departing from the purpose of the application and the scope protected by the claims, and all the forms belong to the protection of the application.

Claims

1. A cable having a protection mechanism, characterized in that, Include: Buffer layer (6), several insulation layer (7) is equipped with in the buffer layer (6), thin-walled seamless stainless steel pipe (8) is equipped with in the insulation layer (7), silicon-based fiber paste (9) is filled in the thin-walled seamless stainless steel pipe (8), wire core (10) is equipped with in the silicon-based fiber paste (9); Shielding layer (5), the shielding layer (5) is equipped with on the buffer layer (6), the elastic layer (3) is equipped with on the shielding layer (5), several protective layer (4) is equipped with in the elastic layer (3), steel wire (41) is equipped with in the protective layer (4), the compression resistance layer (2) is equipped with on the elastic layer (3), the protective layer (1) is equipped with on the compression resistance layer (2).

2. A cable with a protection mechanism according to claim 1, characterized in that, The protective layer (1) and the compression resistance layer (2) are closely bonded, the compression resistance layer (2) and the elastic layer (3) are closely bonded.

3. A cable with a protection mechanism according to claim 1, characterized in that, The elastic layer (3) and the protective layer (4) are closely bonded, the steel wire (41) is in the spiral shape structure.

4. A cable with a protection mechanism according to claim 1, characterized in that, The protective layer (4) and the shielding layer (5) are closely bonded, the shielding layer (5) and the buffer layer (6) are closely bonded.

5. A cable with a protection mechanism according to claim 1, characterized in that, The buffer layer (6) and the insulation layer (7) are closely bonded, the insulation layer (7) and the thin-walled seamless stainless steel pipe (8) are closely bonded.

6. A cable with a protection mechanism according to claim 1, characterized in that, The wire core (10) is located at the center position of the silicon-based fiber paste (9).

7. A cable with a protection mechanism according to claim 1, characterized in that, The spacing between every two protective layer (4) is 0.4-0.8cm, the diameter of the steel wire (41) is 0.1-0.3cm.

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