Inhaul cable capable of automatically adjusting tension

Abstract

The utility model relates to the technical field of inhaul cable structures, in particular to an inhaul cable capable of automatically adjusting tensile force, which can automatically control the tensile force of the inhaul cable, ensure that the tensile force of the inhaul cable is within a design value range and remove structural potential safety hazards. A hydraulic pump, a telescopic hydraulic cylinder, a tension sensor and a cable body are arranged, the tension sensor monitors the axial tension of the inhaul cable in real time, when the axial tension deviates from a design value, the tension sensor feeds back the difference value to the hydraulic pump, then the telescopic hydraulic cylinder is driven to stretch out and draw back, and the tension of the inhaul cable is automatically adjusted to be within the range of the design value; the structure stability and safety are ensured; adjustment is automatically completed, the maintenance cost is saved, and the response speed is high.

Description

Technical Field

[0001] The utility model relates to the technical field of cable structures, in particular to an automatically adjustable tension cable. Background Art

[0002] As cables have the advantages of simple structure, high tensile strength and small space, they are widely used as load-bearing components in large buildings, curtain wall structures, bridges and other structural projects. The force and working state of cables are one of the important indicators that directly reflect whether they are in a safe state.

[0003] In practical applications, if the cable tension deviates from the design value, it will lead to structural safety hazards and require additional tensioning, resulting in multiple constructions, high construction costs and great construction difficulty. In order to make the cable tension within the design value range, a cable with automatic tension control is now provided. Utility Model Content

[0004] Based on this, the purpose of the utility model is to provide a cable with automatically adjustable tension.

[0005] The utility model adopts the following technical solutions:

[0006] An automatically adjustable tension cable comprises a telescopic hydraulic cylinder, a tension sensor and a cable body which are connected in sequence, wherein the tension sensor is connected to one end of the cable body; the telescopic hydraulic cylinder is connected to a hydraulic pump, and the hydraulic pump drives the telescopic hydraulic cylinder to extend and retract.

[0007] Preferably, the tension sensor is connected to a data acquisition processor, and the data acquisition processor is control-connected to the hydraulic pump.

[0008] Preferably, the data acquisition processor and the hydraulic pump realize data transmission through a wired connection or a wireless connection.

[0009] Preferably, a data connector is provided on the side wall of the tension sensor, and the data acquisition processor is connected to the tension sensor via the data connector.

[0010] Preferably, anchors are provided at both ends of the cable body.

[0011] Preferably, the telescopic hydraulic cylinder includes a cylinder barrel, a cylinder head, a piston and a piston rod; the cylinder head is arranged at both ends of the cylinder barrel, and the cylinder head and the inner side of the cylinder barrel form an oil chamber; the piston is movably connected in the oil chamber, one end of the piston rod is fixedly connected to the piston, and the other end of the piston rod passes through the cylinder head and out.

[0012] Preferably, the cylinder head is provided with an oil passage connected to the oil chamber, and the side wall of the cylinder head is provided with a pipeline joint connected to the oil passage.

[0013] Preferably, the hydraulic pump extends out of a transmission pipeline, and the other end of the transmission pipeline is connected to the pipeline joint.

[0014] Preferably, one end of the telescopic hydraulic cylinder is connected with a first connecting member, one end of the cable body is connected with a second connecting member, and both the first connecting member and the second connecting member are provided with a rotating shaft for rotational connection.

[0015] Preferably, the tension sensor is a fiber grating tension sensor, a magnetic flux tension sensor, or a pressure tension sensor.

[0016] The beneficial effects of the utility model are:

[0017] The automatic tension adjustment cable involved in the utility model automatically controls the tension of the cable to ensure that the tension of the cable is within the design value range, thereby eliminating the potential safety hazards of the structure. Specifically, a hydraulic pump, a telescopic hydraulic cylinder, a tension sensor and a cable body are provided. The tension sensor monitors the axial tension of the cable in real time. When there is a deviation between the axial tension and the design value, the tension sensor feeds back the difference to the hydraulic pump, and the hydraulic pump drives the telescopic hydraulic cylinder to extend and retract, automatically adjusting the tension of the cable to within the design value range, thereby ensuring the stability and safety of the structure; the adjustment is completed automatically, saving maintenance costs and having a fast response speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of the automatic tension adjustment cable of the utility model;

[0019] Figure 2 for Figure 1 Section view along AA;

[0020] Figure 3 It is a structural explosion diagram of the automatic tension adjustment cable of the utility model;

[0021] Numbers in the figure:

[0022] 10-telescopic hydraulic cylinder; 11-cylinder barrel; 12-cylinder head; 121-oil channel; 122-pipeline joint; 13-piston; 14-piston rod; 15-oil chamber;

[0023] 20-tension sensor; 21-data connector;

[0024] 30-cable body; 31-connecting part;

[0025] 40- hydraulic pump; 41- transmission pipeline;

[0026] 50-data acquisition processor;

[0027] 60-anchor;

[0028] 70 - first connecting member; 80 - second connecting member; 90 - rotating shaft. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] In the description of the present invention, it should be noted that the terms "vertical direction", "upper", "lower", "horizontal" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, "first", "second", "third", and "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0031] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, it can be a mechanical connection, it can be an electrical connection, it can be a direct connection, it can be connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] like Figures 1 to 3 As shown, the automatic tension adjustment cable of the utility model is applied to large-scale buildings, curtain wall structures, bridges and other structural projects, and can automatically adjust and control the tension of the cable to ensure the stability and safety of the structure. Specifically, the automatic tension adjustment cable includes a telescopic hydraulic cylinder 10, a tension sensor 20 and a cable body 30 connected in sequence; the tension sensor 20 is connected to one end of the cable body 30 to detect the real-time tension of the cable body 30; the telescopic hydraulic cylinder 10 is connected to a hydraulic pump 40, and the hydraulic pump 40 controls the oil supply according to the data of the tension sensor 20 to control the oil pressure of the telescopic hydraulic cylinder 10, and drives the telescopic hydraulic cylinder 10 to extend and retract to adjust the tension of the cable body 30 to ensure the stability and safety of the structure.

[0033] Specifically, the tension sensor 20 is connected with a data acquisition processor 50, and the data acquisition processor 50 is control-connected to the hydraulic pump 40; the data acquisition processor 50 can collect and store the tension of the cable body 30 measured by the tension sensor 20, and compare the measured tension of the cable body 30 with the set value; when the measured tension of the cable body 30 is less than the set value, the data acquisition processor 50 outputs a contraction signal to the hydraulic pump 40 through a digital circuit, and the hydraulic pump 40 reduces the oil supply, so that the telescopic hydraulic cylinder 10 contracts, increases the tension of the cable body 30, and restores the tension of the cable body 30 to the set value; conversely, when the measured tension of the cable body 30 is greater than the set value, the data acquisition processor 50 outputs an extension signal to the hydraulic pump 40 through a digital circuit, and the hydraulic pump 40 increases the oil supply, so that the telescopic hydraulic cylinder 10 extends, reduces the tension of the cable body 30, and restores the tension of the cable body 30 to the set value.

[0034] Specifically, the telescopic hydraulic cylinder 10 includes a cylinder barrel 11, a cylinder head 12, a piston 13 and a piston rod 14; the cylinder head 12 is arranged at both ends of the cylinder barrel 11, and the cylinder head 12 and the inner side of the cylinder barrel 11 form a closed oil chamber 15; the piston 13 is movably connected in the oil chamber 15, one end of the piston rod 14 is fixedly connected to the piston 13, and the other end of the piston rod 14 passes through the cylinder head 12 and out; the piston 13 slides back and forth in the oil chamber 15, driving the piston rod 14 to extend and retract, thereby realizing the telescopic function of the telescopic hydraulic cylinder 10. Furthermore, an oil passage 121 connected to the oil chamber 15 is opened on the inner side of the cylinder head 12, and a pipe joint 122 connected to the oil passage 121 is provided on the side wall of the cylinder head 12; a transmission pipe 41 extends from the hydraulic pump 40, and the other end of the transmission pipe 41 is connected to the pipe joint 122. The hydraulic pump 40 is connected to the oil passage 121 and the oil chamber 15 through the transmission pipe 41. The hydraulic pump 40 controls the oil pressure of the oil chamber 15 inside the telescopic hydraulic cylinder 10 by controlling the oil supply, so as to drive the piston 13 to slide in the oil chamber 15, thereby realizing the extension and retraction of the telescopic hydraulic cylinder 10.

[0035] Specifically, a data connector 21 is provided on the side wall of the tension sensor 20, and the data acquisition processor 50 is connected to the tension sensor 20 by plugging a power cord into the data connector 21. It can be understood that the tension sensor 20 can be selected as one of a fiber grating tension sensor, a magnetic flux tension sensor, and a pressure tension sensor, and is used to detect the tension of the cable body 30 through various tension test methods.

[0036] Specifically, anchors 60 are provided at both ends of the cable body 30, which can improve the installation stability of the cable body 30; further, truncated cone-shaped connecting parts 31 are provided at both ends of the cable body 30, and the connecting parts 31 are fixed to the inner side of the anchor 60. The connecting parts 31 adopt a truncated cone-shaped structure, which can be better fixed and connected to the inner side of the anchor 60.

[0037] In addition, one end of the telescopic hydraulic cylinder 10 is connected to a first connecting member 70, and one end of the cable body 30 is connected to a second connecting member 80. The first connecting member 70 and the second connecting member 80 are both provided with a rotating shaft 90 for rotational connection. The first connecting member 70 and the second connecting member 80 are used for structural connection.

[0038] Specifically, the data acquisition processor 50 and the hydraulic pump 40 can realize data transmission through wired connection or wireless connection to transmit control signals.

[0039] The working principle of the automatic tension adjustment cable involved in the utility model is as follows:

[0040] The tension sensor 20 detects the axial tension of the cable body 30 at regular intervals, and the tension data measured by the tension sensor 20 is transmitted to the data acquisition processor 50. The data acquisition processor 50 compares the measured tension data with the set value, and the data acquisition processor 50 outputs an extension or contraction electrical signal to the hydraulic pump 40. The hydraulic pump 40 is equipped with a controller, which converts the electrical signal into a control instruction to increase or reduce the oil supply.

[0041] When the measured tension data is greater than the set value, the data acquisition processor 50 outputs an extension control signal to the hydraulic pump 40, and the hydraulic pump 40 increases the oil supply, so that the oil pressure in the oil chamber 15 of the telescopic hydraulic cylinder 10 increases, the piston 13 and the piston rod 14 move outward, and the telescopic hydraulic cylinder 10 extends, thereby reducing the tension on the cable body 30 and restoring it to the set value, and the telescopic hydraulic cylinder 10 stops working.

[0042] When the measured tension data is less than the set value, the data acquisition processor 50 outputs a contraction control signal to the hydraulic pump 40, and the hydraulic pump 40 reduces the oil supply, so that the oil pressure in the oil chamber 15 of the telescopic hydraulic cylinder 10 decreases, the piston 13 and the piston rod 14 move inward, the telescopic hydraulic cylinder 10 contracts, and then the tension on the cable body 30 is increased and restored to the set value, and the telescopic hydraulic cylinder 10 stops working.

[0043] Compared with the prior art, the automatic tension adjustment cable involved in the utility model automatically controls the tension of the cable, ensures that the tension of the cable is within the design value range, and eliminates the potential safety hazards of the structure. Specifically, a hydraulic pump 40, a telescopic hydraulic cylinder 10, a tension sensor 20 and a cable body 30 are provided. The tension sensor 20 monitors the axial tension of the cable in real time. When there is a deviation between the axial tension and the design value, the tension sensor 20 feeds back the difference to the hydraulic pump 40, thereby driving the telescopic hydraulic cylinder 10 to extend and retract, automatically adjusting the tension of the cable to within the design value range, and ensuring the stability and safety of the structure; the adjustment is completed automatically, saving maintenance costs and having a fast response speed.

[0044] The above only expresses the preferred technical solution of the utility model, and its description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, and the utility model is also intended to include these modifications and modifications.

Claims

1. An automatically adjustable tension cable, characterized in that: It comprises a telescopic hydraulic cylinder, a tension sensor and a cable body which are connected in sequence, wherein the tension sensor is connected to one end of the cable body; the telescopic hydraulic cylinder is connected to a hydraulic pump which is connected to the tension sensor and is used to drive the telescopic hydraulic cylinder to extend and retract.

2. The automatic tension-adjusting cable according to claim 1, characterized in that: It also includes a data acquisition processor, which is respectively connected to the tension sensor and the hydraulic pump control.

3. The automatic tension-adjusting cable according to claim 2, characterized in that: The data acquisition processor and the hydraulic pump realize data transmission through wired connection or wireless connection.

4. The automatic tension-adjusting cable according to claim 2, characterized in that: A data connector is provided on the side wall of the tension sensor, and the data acquisition processor is connected to the tension sensor via the data connector.

5. The automatically adjustable tension cable according to claim 1, characterized in that: Anchors are provided at both ends of the cable body.

6. The automatic tension-adjusting cable according to claim 1, characterized in that: The telescopic hydraulic cylinder includes a cylinder barrel, a cylinder cover, a piston and a piston rod; the cylinder cover is arranged at both ends of the cylinder barrel, and the cylinder cover and the inner side of the cylinder barrel form an oil chamber; the piston is movably connected in the oil chamber, one end of the piston rod is fixedly connected to the piston, and the other end of the piston rod passes through the cylinder cover.

7. The automatically adjustable tension cable according to claim 6, characterized in that: The cylinder head is provided with an oil passage connected with the oil chamber, and the side wall of the cylinder head is provided with a pipeline joint connected with the oil passage.

8. The automatically adjustable tension cable according to claim 7, characterized in that: The hydraulic pump extends out of a transmission pipeline, and the other end of the transmission pipeline is connected to the pipeline joint.

9. The automatically adjustable tension cable according to claim 1, characterized in that: One end of the telescopic hydraulic cylinder is connected with a first connecting member, one end of the cable body is connected with a second connecting member, and both the first connecting member and the second connecting member are provided with a rotating shaft that is rotatably connected.

10. The automatically adjustable tension cable according to claim 1, characterized in that: The tension sensor is a fiber grating tension sensor, a magnetic flux tension sensor, or a pressure tension sensor.

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