Stay cable
阅读说明:本技术 拉索 (Stay cable ) 是由 白宝鲲 于 2020-07-10 设计创作,主要内容包括:本发明涉及一种拉索,包括:中心丝;扭绞钢丝层,包括多根钢丝,所述多根钢丝呈螺旋状扭绞于所述中心丝的周侧,所述扭绞钢丝层的外周开设有安装槽,所述安装槽沿所述钢丝的扭绞方向延伸;以及传感筋,设置于所述安装槽内,并用于传导所述扭绞钢丝层的受力大小。上述拉索,通过将传感筋可拆卸地连接于扭绞钢丝层的外周,改善因安装锚具而使传感筋损坏的情况;传感筋拆装方便省时,传感筋配合传感器,能够实施检测上述拉索各受力状态时的拉应力,避免使用过程中拉断而存在安全隐患。(The invention relates to a stay cable, comprising: a central wire; the twisted steel wire layer comprises a plurality of steel wires which are twisted on the peripheral side of the central wire in a spiral manner, and the periphery of the twisted steel wire layer is provided with a mounting groove which extends along the twisting direction of the steel wires; and the sensing rib is arranged in the mounting groove and is used for transmitting the stress of the twisted steel wire layer. According to the inhaul cable, the sensing ribs are detachably connected to the periphery of the twisted steel wire layer, so that the condition that the sensing ribs are damaged due to the installation of the anchorage device is improved; the sensing rib is convenient to disassemble and assemble and saves time, the sensing rib is matched with the sensor, the tensile stress when the stress state of the inhaul cable is detected can be implemented, and the potential safety hazard caused by the fact that the inhaul cable is broken in the using process is avoided.)
1. A stay cable, comprising:
a central wire;
the twisted steel wire layer comprises a plurality of steel wires which are twisted on the peripheral side of the central wire in a spiral manner, and the periphery of the twisted steel wire layer is provided with a mounting groove which extends along the twisting direction of the steel wires; and
and the sensing rib is arranged in the mounting groove and is used for transmitting the stress of the twisted steel wire layer.
2. The guy cable of claim 1, wherein at least one of the steel wires positioned at the outermost side of the twisted steel wire layer is provided with the mounting groove, and the notch of the mounting groove is exposed out of the outer circumferential surface of the twisted steel wire layer.
3. A bracing cable according to claim 1, wherein a gap exists between an outer side surface of at least one of the steel wires and an outer side surface of an adjacent steel wire, of the steel wires located at an outermost side of the twisted steel wire layer, the gap forming the mounting groove.
4. The guy cable according to claim 1, wherein the twisted wire layer comprises first wires and second wires, the first wires and the second wires have different radial dimensions, and the second wires are engaged with gaps between adjacent first wires.
5. A cable as claimed in claim 4, characterised in that the first and second wires are circular in cross-section.
6. A cable as claimed in claim 4, characterized in that the twisted wire layer further comprises a third steel wire having a Z-shaped cross section, the third steel wire being disposed at the outermost side of the twisted wire layer in a twisted manner.
7. The guy cable according to claim 6, wherein the third steel wire comprises a first connecting portion, a second connecting portion and a transition portion, the first connecting portion and the second connecting portion are respectively connected to two ends of the transition portion and extend in different directions, a first groove is formed between the first connecting portion and the transition portion, a second groove is formed between the second connecting portion and the transition portion, when the third steel wires are twisted and wound, the first connecting portion of one third steel wire is inserted into the second groove, and the second connecting portion of another adjacent third steel wire is inserted into the first groove.
8. The inhaul cable of claim 1, wherein a sheath is sleeved outside the sensing rib, and the sheath separates the sensing rib from a groove wall of the installation groove.
9. Inhaul cable according to claim 8, characterized by comprising at least one of the following:
the sensing rib is an optical fiber grating wire or a fiber composite grating wire;
the sheath is a plastic sleeve or a steel sleeve.
10. The inhaul cable of claim 1, wherein the sensor is clamped in the sensing rib or connected outside the sensing rib through a connecting wire, and the sensor is connected with the sensing rib and used for receiving and outputting a stress signal transmitted by the sensing rib.
Technical Field
The invention relates to the technical field of steel cables, in particular to a cable.
Background
The sensing muscle among the traditional structure is connected in the center wire, and when the terminal surface of cable and ground tackle riveting, radial tension can make the sensing muscle damage of center department, influences the validity of tensile stress monitoring.
Disclosure of Invention
Therefore, it is necessary to provide a cable for solving the problem that the sensing rib is damaged and the effectiveness of the tensile stress monitoring is easily affected.
A stay cable, comprising:
a central wire;
the twisted steel wire layer comprises a plurality of steel wires which are twisted on the peripheral side of the central wire in a spiral manner, and the periphery of the twisted steel wire layer is provided with a mounting groove which extends along the twisting direction of the steel wires; and
and the sensing rib is arranged in the mounting groove and is used for transmitting the stress of the twisted steel wire layer.
According to the inhaul cable, the sensing ribs are detachably connected to the periphery of the twisted steel wire layer, so that the condition that the sensing ribs are damaged due to the installation of the anchorage device is improved; the sensing rib is convenient to disassemble and assemble and saves time, the sensing rib is matched with the sensor, the tensile stress when the stress state of the inhaul cable is detected can be implemented, and the potential safety hazard caused by the fact that the inhaul cable is broken in the using process is avoided.
In one embodiment, at least one of the steel wires located at the outermost side of the twisted steel wire layer is provided with the mounting groove, and the notch of the mounting groove is exposed out of the outer circumferential surface of the twisted steel wire layer.
In one embodiment, among the steel wires located at the outermost side of the twisted steel wire layer, a gap exists between the outer side surface of at least one steel wire and the outer side surface of the adjacent steel wire, and the gap forms the mounting groove.
In one embodiment, the twisted steel wire layer includes first steel wires and second steel wires, the radial dimensions of the first steel wires and the second steel wires are different, and the second steel wires are clamped in the gaps between the adjacent first steel wires.
In one embodiment, the first and second steel wires are circular in cross-section.
In one embodiment, the twisted steel wire layer further includes a third steel wire having a Z-shaped cross section, and the third steel wire is twisted and disposed at the outermost side of the twisted steel wire layer.
In one embodiment, the third steel wire includes a first connection portion, a second connection portion and a transition portion, the first connection portion and the second connection portion are respectively connected to two ends of the transition portion and extend along different directions, a first groove is formed between the first connection portion and the transition portion, a second groove is formed between the second connection portion and the transition portion, when the third steel wires are twisted and wound, the first connection portion of one third steel wire is inserted into the second groove, and the second connection portion of another adjacent third steel wire is inserted into the first groove.
In one embodiment, a sheath is sleeved outside the sensing rib and separates the sensing rib from the groove wall of the mounting groove.
In one embodiment, at least one of the following is included:
the sensing rib is an optical fiber grating wire or a fiber composite grating wire;
the sheath is a plastic sleeve or a steel sleeve.
In one embodiment, the sensor is clamped in the sensing rib or connected outside the sensing rib through a connecting wire, and the sensor is connected with the sensing rib and used for receiving and outputting a stress signal transmitted by the sensing rib.
Drawings
FIG. 1 is a schematic structural view of the cable according to an embodiment;
FIG. 2 is a transverse cross-sectional view of a cable in one embodiment;
FIG. 3 is a transverse cross-sectional schematic view of another embodiment of a tension cable;
FIG. 4 is a schematic transverse cross-sectional view of a cable in yet another embodiment;
FIG. 5 is a schematic transverse cross-sectional view of a tension cable in yet another embodiment;
fig. 6 is a transverse cross-sectional schematic view of another embodiment of the cable shown in fig. 1.
Reference numerals:
100. a central wire; 200. twisting the wire layer; 201. mounting grooves; 211. a first steel wire; 212. a second steel wire; 213. a third steel wire; 214. a first connection portion; 215. a second connecting portion; 216. a transition section; 217. a first groove; 218. a second groove; 300. and a sensing rib.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
Referring to fig. 1, fig. 1 shows a schematic structural diagram of a cable according to an embodiment of the present invention. The end face of the inhaul cable is riveted with an anchorage device which is connected with a bridge, a railway or a building structure, so that the inhaul cable is widely applied to building engineering such as concrete prestressed tendons, bridge inhaul cables, rock-soil anchor cables and the like as a stress carrier.
Because the inhaul cable is easily influenced by the surrounding environment, and is corroded and rusted to cause the loss of prestress, the inhaul cable cannot be normally used. Therefore, the working state of the inhaul cable needs to be monitored in real time for a long time, the stress state of the inhaul cable is monitored, and the use safety is guaranteed.
Referring to fig. 2, the cable includes a
Specifically, twisted
It can be understood that, through connecting
In an embodiment, referring to fig. 2, in the twisted
It can be understood that, since the notch of the mounting
In this embodiment, the radial dimension of the mounting
In another embodiment, referring to fig. 3, among the steel wires located at the outermost side of the twisted
It can be understood that, when the mounting
In this embodiment, the radial dimension of the mounting
In other embodiments, referring to fig. 6, in the
In some embodiments, the mounting
In some embodiments, one
Further, in an embodiment, a sheath (not shown) is sleeved outside the
In a specific embodiment, the sheath is a plastic sleeve or a steel sleeve, and the sheath can be directly sleeved or riveted on the periphery of the
It should be noted that the length of the
In some embodiments, the cable further includes a sensor (not shown), and the sensor is electrically connected to the
Specifically, in some embodiments, the sensor is clamped in the
In other embodiments, the sensor is connected to the outside of the
In specific implementation, the sensor can be pressure sensor, and the sensor can real-time supervision cable the tensile stress, can send the buzzing or prompt tone when the tensile stress of cable surpasss the default, reminds the operator in time to inspect and replace the steel wire.
In an embodiment, referring to fig. 4 and 5, the steel wires include
In this embodiment, by twisting two kinds of steel wires having different radial dimensions around the
It is noted that in some embodiments, the cross-sections of the first and
In another embodiment, referring to fig. 3, the steel wires further include a
Specifically, as shown in fig. 3, the
In this embodiment, when the
It should be noted that the sizes of the first connecting
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
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