A device for producing standard steel wire for main cable strands of ultra-high strength suspension bridges

Abstract

A device for producing standard steel wire for the main cable strands of an ultra-high strength suspension bridge, comprising a machine, an end clamping device, a through-type hydraulic jack, a pressure sensor, and a hydraulic pump. The two ends of the standard steel wire are fixed between the end clamping device and the wire clamp block. The through-type hydraulic jack is located between the end clamping device and the pressure sensor. The hydraulic pump comprises a pressure regulating valve for controlling the output pressure. The pressure regulating valve adjusts the pressure of the through-type hydraulic jack according to the pressure instantly measured by the pressure sensor to ensure that the standard steel wire is parallel to the horizontal plane. The standard steel wire production equipment ensures that the standard steel wire is parallel to the horizontal plane, that is, the standard steel wire is straightened, and the coating of the standard steel wire is not damaged, thereby improving the quality of the produced standard steel wire.

Description

Technical Field

[0001] The invention relates to the technical field of manufacturing bridge cables, in particular to a device for manufacturing standard steel wires for main cable strands of an ultra-high-strength suspension bridge. Background Art

[0002] As the largest type of bridge currently, suspension bridges are widely used in the design of long-span bridges, and their design life is generally over 100 years. When manufacturing the main cable strands used in suspension bridges, a standard steel wire is required to control the length accuracy of the main cable strands.

[0003] In the prior art, when making standard steel wire, the steel wire is stretched straight on a ruler with a calibrated length, and then the length is marked on the standard steel wire. During the manufacturing process, the method of straightening the standard steel wire generally fixes one end, and uses a gravity weight at the other end to apply tension to the steel wire to straighten the steel wire. Regardless of thick steel wire, thin steel wire, high-strength steel wire, low-strength steel wire, high elastic modulus or low elastic modulus, a fixed force is used to apply tension to the steel wire. At the same time, it is well known that the outer surface of the steel wire has an anti-corrosion coating, such as an aluminum-magnesium-zinc coating. When a fixed force is used to straighten the steel wire, in some cases, such as thin steel wire, it will cause these coatings to break and damage the standard steel wire. Summary of the invention

[0004] In view of this, the present invention provides a device for manufacturing standard steel wires for main cable strands of ultra-high strength suspension bridges to solve the above technical problems.

[0005] A device for manufacturing standard steel wire for main cable strands of an ultra-high strength suspension bridge, comprising a machine platform, an end clamping device arranged on the machine platform, a through-type hydraulic jack arranged on the machine platform and spaced apart from the end clamping device, a pressure sensor arranged on the through-type hydraulic jack, and a hydraulic pump for providing pressure to the through-type hydraulic jack. The two ends of the standard steel wire are fixed between the end clamping device and the steel wire clamping block. The through-type hydraulic jack is located between the end clamping device and the pressure sensor. The hydraulic pump includes a pressure regulating valve for controlling the output pressure. The pressure regulating valve adjusts the pressure of the through-type hydraulic jack according to the pressure instantly measured by the pressure sensor to ensure that the standard steel wire is parallel to the horizontal plane.

[0006] Furthermore, the equipment for manufacturing standard steel wires for main cable strands of ultra-high strength suspension bridges also includes a pressure display connected to the pressure sensor, and the pressure display is used to display the pressure of the through-type hydraulic jack on the standard steel wire passing through.

[0007] Furthermore, the standard steel wire manufacturing equipment for the main cable strands of the ultra-high strength suspension bridge also includes a driving device for driving the through-type hydraulic jack.

[0008] Furthermore, the driving device drives the through-type hydraulic jack to move away from the end clamping device.

[0009] Furthermore, the hydraulic pump also includes a pressure gauge, and the pressure gauge is used to display the instantaneous pressure of the hydraulic pump.

[0010] Furthermore, the standard steel wire manufacturing equipment for the main cable strands of the ultra-high strength suspension bridge also includes a steel wire clamping block arranged on the through-type hydraulic jack, and the steel wire clamping block clamps the standard steel wire after the manufacturing of the standard steel wire is completed.

[0011] Furthermore, as the distance between the through-type hydraulic jack and the end clamping device increases, the tension value of the standard steel wire gradually increases, and at the same time, the pressure of the through-type hydraulic jack increases.

[0012] Compared with the prior art, the ultra-high strength suspension bridge main cable strand standard steel wire manufacturing equipment provided by the present invention uses the through-type hydraulic jack. In the process of straightening the standard steel wire, different pressures can be applied according to different types of standard steel wires to avoid damaging the steel wire coating due to excessive pressure. At the same time, as the length of the standard steel wire increases, the hydraulic pump provides a suitable pressure value for the through-type hydraulic jack according to the pressure value detected by the pressure sensor, thereby ensuring that the standard steel wire is parallel to the horizontal plane while ensuring that the standard steel wire is straightened without damaging the standard steel wire coating, thereby improving the quality of the produced standard steel wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic structural diagram of the standard steel wire manufacturing equipment for the main cable strands of an ultra-high strength suspension bridge provided by the present invention. DETAILED DESCRIPTION

[0014] The specific embodiments of the present invention are further described in detail below. It should be understood that the description of the embodiments of the present invention herein is not intended to limit the protection scope of the present invention.

[0015] like Figure 1As shown, it is a structural schematic diagram of the standard steel wire manufacturing equipment for the main cable strands of the ultra-high strength suspension bridge provided by the present invention. The standard steel wire manufacturing equipment for the main cable strands of the ultra-high strength suspension bridge includes a machine 10, an end clamping device 20 arranged on the machine 10, a through-type hydraulic jack 30 arranged on the machine 10 and spaced from the end clamping device 20, a driving device 40 arranged on the machine 10 and driving the through-type hydraulic jack 30 to move, a pressure sensor 50 arranged on the through-type hydraulic jack 30, a steel wire clamping block 60 arranged on the through-type hydraulic jack 30, and a hydraulic pump 70 for providing pressure to the through-type hydraulic jack 30. It can be imagined that the standard steel wire manufacturing equipment for the main cable strands of the ultra-high strength suspension bridge also includes some other functional modules, such as an installation module, an assembly module, an electrical connection component, and a take-up reel arranged before and after the machine, etc., which are well-known technologies for those skilled in the art and will not be described in detail one by one here.

[0016] The machine platform 10 is used to carry the above-mentioned functional modules, namely the end clamping device 20, the through-type hydraulic jack 30, and the driving device 40, etc., which can be configured according to actual needs and will not be described in detail here.

[0017] The end clamping device 20 is used to clamp one end of the straightened standard steel wire, which is itself a prior art. The end clamping device 20 is fixedly arranged on the machine table 10, and may include a base, a bolt screwed on the base, and a nut arranged on the bolt. A through hole is arranged at one end of the bolt, and the nut is screwed on the other end. When the standard steel wire needs to be clamped and fixed, one end of the standard steel wire is inserted into the through hole, and the standard steel wire is located on one side of the base, and the nut is located on the other side of the base, so that the standard steel wire can be fixed on the end clamping device 20 while the nut is tightened.

[0018] The through-type hydraulic jack 30 itself is a prior art, which uses the dual effects of double hydraulic cylinders to tension prestressed tendons and top-pressure anchors to achieve the top-pushing effect. The through-type hydraulic jack 30 can clamp the other end of the standard steel wire, and it can set a pressure value according to actual needs. It can adjust the output pressure value according to the length of the straightened standard steel wire, so as to avoid damaging the coating on the outer surface of the clamped standard steel wire. In the process of tightening the standard steel wire, as the distance between the through-type hydraulic jack 30 and the end clamping device 20 increases, the tension value of the standard steel wire gradually increases, and the pressure of the through-type hydraulic jack 20 should also increase to prevent the straightened standard steel wire from bending, resulting in inaccurate length.

[0019] The driving device 40 is arranged on the machine 10, and may include a screw rod, and the driving device 40 drives the screw rod to rotate, and a threaded hole is arranged at the bottom of the through-type hydraulic jack 30, and when the screw rod rotates, the through-type hydraulic jack 30 can be driven to move along the length direction of the standard steel wire and away from the end clamping device 20, so as to achieve the purpose of straightening the standard steel wire. At the same time, by setting the pressure value of the through-type hydraulic jack 30, it is possible to avoid damaging the coating on the outer surface of the standard steel wire.

[0020] The pressure sensor 50 is also a through-type pressure sensor, which is arranged at one end of the through-type hydraulic jack 30 and is used to detect the resistance force of the through-type hydraulic jack 30 on the clamped standard steel wire. In order to know the pressure value detected by the pressure sensor 50 in time, the ultra-high strength suspension bridge main cable strand standard steel wire manufacturing equipment also includes a pressure display 80 connected to the pressure sensor 50. The pressure display 80 is used to display the pressure of the through-type hydraulic jack 30 on the standard steel wire passing through.

[0021] The wire clamp block 60 is also arranged on the through-type hydraulic jack 30, and is used to clamp and fix the other end of the standard wire after the standard wire is made to prevent it from rebounding. The wire clamp block 60 itself is a prior art, and its structure can be the same as that of the end clamping device 20.

[0022] The hydraulic pump 70 itself is a prior art, and is used to provide hydraulic support force for the through-type hydraulic jack 30. The hydraulic pump 70 includes a pressure gauge 71 and a pressure regulating valve 72 for controlling the output pressure. The pressure gauge 71 is used to display the instantaneous pressure of the hydraulic pump 70. The pressure regulating valve 72 adjusts the pressure of the through-type hydraulic jack 30 according to the instantaneous pressure detected by the pressure sensor 50 to ensure that the standard steel wire is parallel to the horizontal plane.

[0023] Compared with the prior art, the ultra-high strength suspension bridge main cable strand standard steel wire manufacturing equipment provided by the present invention uses the through-type hydraulic jack 30. In the process of straightening the standard steel wire, different pressures can be applied according to different types of standard steel wires to avoid damaging the steel wire coating due to excessive pressure. At the same time, as the length of the standard steel wire increases, the hydraulic pump 70 provides a suitable pressure value for the through-type hydraulic jack 30 according to the pressure value detected by the pressure sensor 50, thereby ensuring that the standard steel wire is parallel to the horizontal plane while ensuring that the standard steel wire is straightened without damaging the standard steel wire coating, thereby improving the quality of the produced standard steel wire.

[0024] The above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modification, equivalent substitution or improvement within the spirit of the present invention is included in the scope of the claims of the present invention.

Claims

1. A device for producing standard steel wires for main cables of ultra-high strength suspension bridges, characterized in that: The standard steel wire manufacturing equipment for the main cable strands of the ultra-high-strength suspension bridge includes a machine platform, an end clamping device arranged on the machine platform, a through-type hydraulic jack arranged on the machine platform and spaced apart from the end clamping device, a pressure sensor arranged on the through-type hydraulic jack, and a hydraulic pump for providing pressure to the through-type hydraulic jack. The standard steel wire manufacturing equipment for the main cable strands of the ultra-high-strength suspension bridge also includes a steel wire clamping block arranged on the through-type hydraulic jack, the steel wire clamping block clamps the standard steel wire after the standard steel wire is manufactured, and the two ends of the standard steel wire are fixed to the end clamping device. The through-type hydraulic jack is located between the end clamping device and the pressure sensor, the hydraulic pump includes a pressure regulating valve for controlling the output pressure, the pressure regulating valve adjusts the pressure of the through-type hydraulic jack according to the pressure instantly measured by the pressure sensor to ensure that the standard steel wire is parallel to the horizontal plane, that is, to ensure that the standard steel wire is straightened without damaging the coating of the standard steel wire, the ultra-high strength suspension bridge main cable strand standard steel wire manufacturing equipment also includes a driving device for driving the through-type hydraulic jack to move, the driving device drives the through-type hydraulic jack to move away from the end clamping device, as the distance between the through-type hydraulic jack and the end clamping device increases, the tension value of the standard steel wire gradually increases, and the pressure of the through-type hydraulic jack increases.

2. The ultra-high strength suspension bridge main cable strand standard steel wire manufacturing equipment according to claim 1, characterized in that: The equipment for producing standard steel wires for main cables of ultra-high strength suspension bridges also includes a pressure display connected to the pressure sensor, and the pressure display is used to display the pressure of the through-type hydraulic jack on the standard steel wire passing through.

3. The ultra-high strength suspension bridge main cable strand standard steel wire manufacturing equipment according to claim 1, characterized in that: The hydraulic pump further comprises a pressure gauge, which is used to display the instantaneous pressure of the hydraulic pump.

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