阅读说明：本技术 一种全向叉车视频监控随行电缆及其制造方法 (Omnidirectional forklift video monitoring traveling cable and manufacturing method thereof ) 是由 徐侨 周雄文 王艳 钟显波 吕军 于 2021-08-18 设计创作，主要内容包括：本发明公开了一种全向叉车视频监控随行电缆及其制造方法,采用扁形设计,中心放置承力元件,两端分别为一根视频监控线芯,随行电缆安装在全向叉车移动导向轮上,两端采用夹具紧回电缆时,随行电缆受力点是在中心的承力元件上,而不是在两端的线芯组上,提高电缆使用寿命。并且,视频监控线芯中,采用多根金属导丝束绞后再绞合的方式,所有金属导丝弯曲半径一致,避免电缆在较小弯曲半径时的断线,间隙填充物大大提高了视频监控线芯的强度。因此,本发明的一种全向叉车视频监控随行电缆及其制造方法具有使用寿命长,可靠性高,稳定性好的优点。(The invention discloses an omnidirectional forklift video monitoring traveling cable and a manufacturing method thereof, wherein a flat design is adopted, a bearing element is arranged in the center, two ends of the cable are respectively provided with a video monitoring wire core, the traveling cable is arranged on a moving guide wheel of an omnidirectional forklift, when the two ends of the cable are tightly returned by adopting a clamp, the bearing point of the traveling cable is arranged on the bearing element in the center, but not on the wire core groups at the two ends, and the service life of the cable is prolonged. In addition, in the video monitoring wire core, a mode that a plurality of metal guide wires are stranded and then are stranded is adopted, the bending radiuses of all the metal guide wires are consistent, the cable is prevented from being broken when the bending radius is smaller, and the strength of the video monitoring wire core is greatly improved by gap fillers. Therefore, the omnidirectional forklift video monitoring trailing cable and the manufacturing method thereof have the advantages of long service life, high reliability and good stability.)

1. The utility model provides a fork truck video monitoring retinue cable of qxcomm technology which characterized in that: the cable comprises a sheath layer, a force bearing element and two video monitoring wire cores; the force-bearing element and the two video electric control cables are arranged side by side, the force-bearing element is arranged between the two video monitoring cable cores, the sheath layer coats the force-bearing element and the two video monitoring cable cores, and the sheath layer is of a flat structure; the force bearing element is positioned at the center of the sheath layer of the flat structure; the video monitoring wire core comprises a shielding layer, a twisted pair and a gap filling structure, wherein the twisted pair and the gap filling structure are arranged in the shielding layer; the twisted pair comprises two wires, wherein each wire comprises a conductor and an insulating layer; the conductor comprises a multi-strand bundle-twisted structure, the bundle-twisted structure comprises a plurality of metal guide wires, m metal guide wires are bundled and twisted to form the bundle-twisted structure, and n strands of the bundle-twisted structure are twisted to form the conductor; the metal guide wires have a uniform bending radius.

2. The omnidirectional forklift video monitoring trailing cable according to claim 1, wherein: the thickness of the sheath layer is not more than 6.5 mm.

3. The omnidirectional forklift video monitoring trailing cable according to claim 2, wherein: the diameter of the force bearing element is 3.0mm to 3.5 mm.

4. The omnidirectional forklift video monitoring trailing cable according to claim 1, wherein: the bearing element is a steel wire rope.

5. The omnidirectional forklift video monitoring trailing cable according to claim 1, wherein: the twisting mode of two conductors of the twisted pair is a pair twisting mode.

6. The omnidirectional forklift video monitoring trailing cable according to claim 1, wherein: among the two video monitoring sinle silks, one is video monitoring power sinle silk, and one is video monitoring data sinle silk, video monitoring power sinle silk with the structure of video monitoring data sinle silk is the same.

7. The omnidirectional forklift video monitoring trailing cable according to claim 1 or 6, wherein: the conductor is a copper conductor, and the metal guide wire is a copper wire; the copper conductor comprises 3 strands of the bundle stranding structure; the bundle stranding structure includes 16 copper wires.

8. The omnidirectional forklift video monitoring trailing cable according to claim 7, wherein: of said copper wireThe diameter is 0.12mm, and the cross-sectional area of the copper conductor is 0.5mm²。

9. A method of manufacturing an omnidirectional forklift video surveillance trailing cable according to any one of claims 1 to 8, characterized in that: the method comprises the following steps:

s1, manufacturing a video monitoring wire core: stranding a plurality of metal wire guide bundles into a bundle stranding structure; twisting the stranded structure together to form a conductor; coating an insulating layer outside the conductor to form a lead; twisting the two wires into a twisted pair; arranging a filling layer outside the twisted pair, and covering the twisted pair and the filling layer by using a shielding layer;

s2, arranging a force bearing element and the two video monitoring wire cores in parallel, wherein the force bearing element is arranged between the two video monitoring wire cores;

s3, processing and arranging a sheath layer by taking the force bearing element as a center, and coating the force bearing element and the two video monitoring wire cores by using the flat sheath layer.

10. The manufacturing method of the omnidirectional forklift video monitoring trailing cable according to claim 1, characterized in that: in the step S1, the metal guide wire is a copper wire, the conductor is a copper conductor, and the copper conductor includes a 3-strand bundle structure; the bundle twisting structure comprises 16 copper wires; firstly, twisting 16 copper wires to form a bundle twisting structure, and then twisting 3 strands of the bundle twisting structure to form a copper conductor.

Technical Field

The invention relates to the technical field of forklift monitoring, in particular to an omnidirectional forklift video monitoring trailing cable with high reliability and good stability and a manufacturing method thereof.

Background

The omnidirectional forklift is widely applied in a stereoscopic warehouse, the lifting height exceeds 4.5m, the visual line angle of an operator is poor, and the forklift gantry cannot accurately position the articles to be moved after blocking the visual line. In order to solve the problem of sight of operators, a high-definition video monitoring camera is installed on a forklift door frame of an omnidirectional forklift, a video monitoring picture is transmitted by a flat cable for follow-up video monitoring for a common elevator, but in the actual application process, the cable for follow-up video monitoring for the common elevator runs for less than 3 months, and the technical requirements of long-term use cannot be met due to the fact that the bending diameter of the omnidirectional forklift is far smaller than that of the cable for follow-up video monitoring for the elevator, and the core breaking of video cable cores occurs. And the video monitoring retinue cable that adopts circular structure, the overall dimension of cable is big, and the overall dimension of cable is bigger, is unfavorable for the cable life-span more.

Because the flat cable for monitoring the accompanying video of the common elevator has short service life and cannot meet the requirement of long-term use reliability, domestic large-scale forklift manufacturers replace wired transmission by wireless. However, wireless video transmission has the defects of poor reliability and unstable signals, and the installation cost is high, so that the development of the omnidirectional forklift is limited.

Therefore, there is a need for an improvement to overcome the deficiencies of the prior art.

Disclosure of Invention

The invention aims to solve the problems in the prior art and provides an omnidirectional forklift video monitoring trailing cable with high reliability and good stability and a manufacturing method thereof.

The technical scheme of the invention is as follows:

an omnidirectional forklift video monitoring traveling cable comprises a sheath layer, a force bearing element and two video monitoring wire cores; the force-bearing element and the two video electric control cables are arranged side by side, the force-bearing element is arranged between the two video monitoring cable cores, the sheath layer coats the force-bearing element and the two video monitoring cable cores, and the sheath layer is of a flat structure; the force bearing element is positioned at the center of the sheath layer of the flat structure; the video monitoring wire core comprises a shielding layer, a twisted pair and a gap filling structure, wherein the twisted pair and the gap filling structure are arranged in the shielding layer; the twisted pair comprises two wires, wherein each wire comprises a conductor and an insulating layer; the conductor comprises a multi-strand bundle-twisted structure, the bundle-twisted structure comprises a plurality of metal guide wires, m metal guide wires are bundled and twisted to form the bundle-twisted structure, and n strands of the bundle-twisted structure are twisted to form the conductor; the metal guide wires have a uniform bending radius.

As a preferable technical scheme, the thickness of the sheath layer is not more than 6.5 mm.

As a further preferable technical scheme, the diameter of the force bearing element is 3.0mm to 3.5 mm.

As a preferred technical scheme, the force bearing element is a steel wire rope.

As a preferred technical solution, the two conductors of the twisted pair are twisted in a twisted pair manner.

As an optimal technical scheme, one of the two video monitoring wire cores is a video monitoring power wire core, and the other is a video monitoring data wire core, and the video monitoring power wire core and the video monitoring data wire core have the same structure.

As a further preferable technical scheme, the conductor is a copper conductor, and the metal guide wire is a copper wire; the copper conductor comprises 3 strands of the bundle stranding structure; the bundle stranding structure includes 16 copper wires.

As a further preferable technical scheme, the diameter of the copper wire is 0.12mm, and the cross section area of the copper conductor is 0.5mm²。

The invention also provides a manufacturing method of the omnidirectional forklift video monitoring traveling cable, which comprises the following steps:

s1, manufacturing a video monitoring wire core: stranding a plurality of metal wire guide bundles into a bundle stranding structure; twisting the stranded structure together to form a conductor; coating an insulating layer outside the conductor to form a lead; twisting the two wires into a twisted pair; arranging a filling layer outside the twisted pair, and covering the twisted pair and the filling layer by using a shielding layer;

s2, arranging a force bearing element and the two video monitoring wire cores in parallel, wherein the force bearing element is arranged between the two video monitoring wire cores;

s3, processing and arranging a sheath layer by taking the force bearing element as a center, and coating the force bearing element and the two video monitoring wire cores by using the flat sheath layer.

As a preferable technical solution, in step S1, the metal guide wire is a copper wire, the conductor is a copper conductor, and the copper conductor includes 3 strands of the bundle-twisted structure; the bundle twisting structure comprises 16 copper wires; firstly, twisting 16 copper wires to form a bundle twisting structure, and then twisting 3 strands of the bundle twisting structure to form a copper conductor.

The invention relates to an omnidirectional forklift video monitoring trailing cable and a manufacturing method thereof, which adopt a flat design, a bearing element is arranged in the center, two ends of the trailing cable are respectively provided with a video monitoring wire core, the trailing cable is arranged on a moving guide wheel of an omnidirectional forklift, when two ends of the trailing cable are tightly returned by adopting a clamp, the bearing point of the trailing cable is arranged on the bearing element in the center, but not on the wire core groups at two ends, and the service life of the cable is prolonged. In addition, in the video monitoring wire core, a mode that a plurality of metal guide wires are stranded and then are stranded is adopted, the bending radiuses of all the metal guide wires are consistent, the cable is prevented from being broken when the bending radius is smaller, and the strength of the video monitoring wire core is greatly improved by gap fillers. Therefore, the omnidirectional forklift video monitoring trailing cable and the manufacturing method thereof have the advantages of long service life, high reliability and good stability.

Drawings

FIG. 1 is a cross-sectional view of a particular embodiment of an omnidirectional forklift video surveillance trailing cable of the present invention;

fig. 2 is a cross-sectional view of the video monitoring core of fig. 1.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, and "a" and "an" generally include at least two, but do not exclude at least one, unless the context clearly dictates otherwise.

It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

The words "if", as used herein, may be interpreted as "at … …" or "at … …" or "in response to a determination" or "in response to a detection", depending on the context. Similarly, the phrases "if determined" or "if detected (a stated condition or event)" may be interpreted as "when determined" or "in response to a determination" or "when detected (a stated condition or event)" or "in response to a detection (a stated condition or event)", depending on the context.

It is also noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a good or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such good or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a commodity or system that includes the element.

Fig. 1 shows a specific embodiment of an omnidirectional forklift video monitoring trailing cable according to the present invention. As shown in fig. 1, the omnidirectional forklift video monitoring traveling cable of the embodiment includes a sheath layer 2, a force-bearing element 3 and a video monitoring cable core 1. Wherein, two video monitoring sinle silks 1 set up side by side with load element 3, and load element 3 sets up between two video monitoring sinle silks 1, and two video monitoring sinle silks 1 set up about load element 3 symmetry. The jacket layer 2 coats the force bearing element 3 and the two video monitoring wire cores 1, the jacket layer is of a flat structure, and the force bearing element 3 is located in the center of the jacket layer 2 of the flat structure. The omnidirectional forklift video monitoring traveling cable has the characteristic that the cable is in a tensioning state no matter in the operation process or in a static state, and the ordinary elevator traveling cable structure is adopted, so that the state requirement of the cable cannot be met. And the core of the cable can not be in a stressed state for a long time, otherwise the core is easy to break. The omnidirectional forklift video monitoring satellite cable adopts a brand-new flat cable structural design, and the problem that the insulated wire cores are not under tension when the cable is in a long-term stress state is solved. As shown in fig. 1, in this embodiment, the sheath layer 2 with a flat structure is a flat oval, and in the implementation process, an oval structure with a slightly protruding middle may also be adopted. The omnidirectional forklift video monitoring trailing cable is symmetrical in structure, and after the flat cable is installed, the left and right gravity and tension are balanced, so that the cable is kept untwisted, and the service life of the cable is prolonged.

As shown in fig. 2, in the omnidirectional forklift video monitoring trailing cable of the embodiment, the video monitoring cable core 1 includes a shielding layer 1a, a twisted pair disposed in the shielding layer 1a, and a gap filling structure 1 d. The twisted pair comprises two conductors, each conductor comprising a conductor 1c and an insulating layer 1 b. The conductor 1c comprises a multi-strand bundle structure, each bundle structure comprises a plurality of metal guide wires, and the bending radiuses of all the metal guide wires are consistent. So as to avoid core breaking of the central layer conductor when the cable runs at a smaller bending radius.

In practical application, the twisting mode of two wires in the twisted pair in the video monitoring wire core 1 is a pair twisting mode, at the moment, the video signal transmission structure is an insulated wire core-insulated wire core and an insulated wire core-shielding layer, the characteristic impedance design is matched with the characteristic impedance of a coaxial cable of a connecting wire of the video monitoring camera and the video monitoring display, and the transmission efficiency and the image clarity are improved. Moreover, the twisted pair in the video monitoring wire core 1 adopts a pair twisting mode, so that the bending performance and the service life of the cable core group can be greatly improved.

In practical application, one of the two video monitoring wire cores 1 is a video monitoring power wire core, and the other is a video monitoring data wire core, wherein the video monitoring power wire core and the video monitoring data wire core have the same structure.

In practical application, the conductor in the video monitoring wire core 1 can be a copper conductor, and the metal guide wire is a copper wire correspondingly. Preferably, the copper conductor comprises 3 strand structures, and each strand structure comprises 16 copper wires. The diameter of the copper wire is 0.12mm, and the cross-sectional area of the copper conductor is 0.5mm²Namely, the copper conductor adopts the 3/16/0.12mm conductor stranding mode. After 16 strands of 0.12mm strands adopt a proper bundle twisting structure, 3 strands of 16 strands of 0.12mm copper wires are twisted together to be used as conductors of the twisted pair. The twisting mode meets the requirement that the bending radius of all 48 copper wires with the thickness of 0.12mm is consistent when the cable is in bending operation, and avoids the cable from being guided when the cable is in small bending radius operationBreaking the core.

In order to facilitate the installation of the omnidirectional forklift video monitoring trailing cable of the embodiment, extra stress is avoided, and in practical application, the thickness of the sheath layer 2 is not more than 6.5 mm. The diameter of the force-bearing element 3 is then 3.0mm to 3.5 mm. The diameter of the steel wire rope is large, the thickness of the finished cable is thick, and the diameter of the installation guide wheel of the omnidirectional forklift is certain, so that the steel wire rope is easy to break the core at a small bending radius; the diameter of the steel wire rope is too small, and when the trailing cable is installed and fastened, the sheath material of the trailing cable is deformed under too large pressure, so that the wire core group is stressed, and the service life of the trailing cable is influenced. Therefore, the diameter of the force bearing element 3 is 3.0mm to 3.5mm, which is the preferable scheme obtained by the inventor through creative work.

In order to ensure the bending resistance of the bearing element 3, the bearing element 3 can be a steel wire rope in practical application. The structure of the steel wire rope is in a 1+6 type stranding mode so as to meet the bending resistance of the steel wire rope.

The embodiment also discloses a manufacturing method of the omnidirectional forklift video monitoring trailing cable, which comprises the following steps:

s1, manufacturing a video monitoring wire core: stranding a plurality of metal wire guide bundles into a bundle stranding structure; twisting the stranded structure together to form a conductor; coating an insulating layer outside the conductor to form a lead; twisting the two wires into a twisted pair; arranging a filling layer outside the twisted pair, and covering the twisted pair and the filling layer by using a shielding layer;

s2, arranging a force bearing element and the two video monitoring wire cores in parallel, wherein the force bearing element is arranged between the two video monitoring wire cores;

s3, processing and arranging a sheath layer by taking the force bearing element as a center, and coating the force bearing element and the two video monitoring wire cores by using the flat sheath layer.

When the device is specifically implemented, the metal guide wire is a copper wire, the conductor is a copper conductor, the copper conductor comprises a 3-strand stranding structure, the strand stranding structure comprises 16 copper wires, the 16 copper wires are stranded to form the strand stranding structure, and then the 3-strand stranding structure is stranded to form the copper conductor.

The omnidirectional forklift video monitoring trailing cable manufactured by the manufacturing method of the omnidirectional forklift video monitoring trailing cable passes a 3.4.3 deflection load 50kg test in GB/T5023.6, the test data exceeds 100,000 times, and the conductor direct current resistance and the characteristic impedance of the cable do not change at all. The traveling cable is installed on an omnidirectional forklift and used for half a year, and the quality of a customer reaction product is excellent.

The invention relates to an omnidirectional forklift video monitoring trailing cable and a manufacturing method thereof, which adopt a flat design, a bearing element is arranged in the center, two ends of the trailing cable are respectively provided with a video monitoring wire core, the trailing cable is arranged on a moving guide wheel of an omnidirectional forklift, when two ends of the trailing cable are tightly returned by adopting a clamp, the bearing point of the trailing cable is arranged on the bearing element in the center, but not on the wire core groups at two ends, and the service life of the cable is prolonged. In addition, in the video monitoring wire core, a mode that a plurality of metal guide wires are stranded and then are stranded is adopted, the bending radiuses of all the metal guide wires are consistent, the cable is prevented from being broken when the bending radius is smaller, and the strength of the video monitoring wire core is greatly improved by gap fillers. Therefore, the omnidirectional forklift video monitoring trailing cable and the manufacturing method thereof have the advantages of long service life, high reliability and good stability.

In summary, the embodiments of the present invention are merely exemplary and should not be construed as limiting the scope of the invention. All equivalent changes and modifications made according to the content of the claims of the present invention should fall within the technical scope of the present invention.