Cable clamp for suspension bridge

Abstract

The invention relates to a cable clamp for suspension bridges, comprising two cable clamp parts detachably connected through locking members, a plurality of notches are arranged at the opposite sides of the joint of the cable clamp parts, the notches of the two cable clamp parts are matched, a meshing plate is arranged between the corresponding notches of the two cable clamp parts, one end of the meshing plate is fixed in the notch of one of the cable clamp parts, and the other end of the meshing plate extends into the notch of the other cable clamp part, and the cable clamp for suspension bridges is convenient to process and manufacture.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of suspension bridges, in particular to a cable clamp for a suspension bridge. BACKGROUND

[0002] The statements herein are provided only to enhance understanding of the present application and are not necessarily intended to constitute the prior art.

[0003] The cable clamp is a connecting piece between the main cable and the bridge deck cable of a suspension bridge, which is used to clamp the main cable wire and transmit the load of the bridge deck to the main cable. In the future, with the increase of the span and load of the bridge, the diameter of the main cable will further increase.

[0004] Generally, the cable clamp is a two-half structure, and the upper and lower halves or the left and right halves are closed by high-strength screws or bolts. In order to ensure clamping of the main cable, a gap is reserved at the closing joint surface of the two halves of the cable clamp. In order to prevent the main cable wire from extruding out of the reserved gap when clamping the main cable, a meshing tooth structure is arranged to block the wire from extruding out of the joint surface. Generally, the cable clamp is formed by casting, and the meshing teeth are integrally formed at the joint surface of the two halves of the cable clamp. If the cable clamp is formed by welding a steel plate, the circular arc inner wall part is formed by rolling the steel plate as a whole. If the meshing teeth and the circular arc inner wall are integrally made, the material loss is very large, and at the same time, the circular arc inner wall of the cable clamp cannot be formed by rolling, which is very difficult to make and has low efficiency. SUMMARY

[0005] In view of the deficiencies of the prior art, the purpose of the present application is to provide a cable clamp for a suspension bridge, which solves the problem of difficult overall forming of the welding structure cable clamp meshing plate.

[0006] In order to achieve the above-mentioned purpose, the present application is realized by the following technical scheme:

[0007] The embodiment of the present application provides a cable clamp for a suspension bridge, which comprises two cable clamp parts connected by a locking piece, a plurality of notches are arranged at the closing joint surfaces of the two cable clamp parts, the notches of the two cable clamp parts are matched, a meshing plate is arranged between the corresponding notches of the two cable clamp parts, one end of the meshing plate is fixed in the notch of one of the cable clamp parts, and the other end of the meshing plate extends into the notch of the other cable clamp part.

[0008] Optionally, the notch is arranged on the inner side surface of the closing joint surface of the cable clamp part.

[0009] Optionally, the depth of the notch is greater than the thickness of the meshing plate.

[0010] Optionally, the notch surface perpendicular to the depth direction is a plane, and is parallel to the closing direction of the two cable clamp parts.

[0011] Optionally, the meshing plates located on the two sides of the cable clamp part are symmetrically arranged with respect to the center line of the cable clamp part.

[0012] Optionally, the length of the slot along the axis of the cable clamp part is greater than the length of the engaging plate.

[0013] Optionally, the thickness of the engaging plate is 8-15mm.

[0014] Optionally, the engaging plate is made of low-alloy high-strength structural steel.

[0015] Optionally, one end of the engaging plate is fixed inside the slot of one of the cable clamp parts, and the other end has a set distance from the slot surface of the slot of the other cable clamp part, which is parallel to the axis of the cable clamp part.

[0016] Optionally, the outer side of one of the cable clamp parts is provided with an ear plate.

[0017] The beneficial effects of the present application are as follows:

[0018] 1. The cable clamp for suspension bridges of the present application, by setting the slot and the engaging plate, the engaging plate is fixed inside the slot of one of the cable clamp parts, when the two cable clamp parts are spliced together, the engaging plate can be inserted into the slot of the other cable clamp part, thereby preventing the main cable steel wire from extruding from the gap reserved when the two cable clamp parts are spliced together. The slot is convenient to process on the steel plate, and the engaging plate is also convenient to fix with the slot processed on the steel plate, so that the whole welded structure of the cable clamp is simple in structure, the engaging plate is separated from the cable clamp part for manufacturing, so that the cable clamp part can be formed by rolling, which is small in forming difficulty, low in material loss, low in manufacturing cost, and high in manufacturing effect.

[0019] 2. The cable clamp for suspension bridges of the present application, the depth of the slot is greater than the thickness of the engaging plate, so that when the two cable clamp parts are installed, the engaging plate will not intrude into the space of the main cable steel wire, and at the same time, the engaging plate can prevent the steel wire from extruding from the spliced joint. BRIEF DESCRIPTION OF DRAWINGS

[0020] The drawings accompanying the specification of the present application form a part thereof, serve to provide further understanding of the present application, and together with the description of the exemplary embodiments of the present application, serve to explain the present application, and do not constitute an improper limitation of the present application.

[0021] Figure 1 is a schematic diagram of the overall structure of embodiment 1 of the present application Figure One ;

[0022] Figure 2 is a schematic diagram of the overall structure of embodiment 1 of the present application Figure Two ;

[0023] Figure 3 is a schematic diagram of the cross section of the overall structure of embodiment 1 of the present application

[0024] Figure 4 is a local enlarged view of the engaging plate of embodiment 1 of the present application

[0025] Figure 5 is a schematic view of a notch opening section of the embodiment 1 of the present application;

[0026] Figure 6 is a front view of a notch opening section of the embodiment 1 of the present application;

[0027] Figure 7 is a schematic view of an engaging plate structure of the embodiment 1 of the present application;

[0028] Wherein, 1. first cable clamp part, 2. second cable clamp part, 3. notch, 4. engaging plate, 5. ear plate. DETAILED DESCRIPTION

[0029] For the convenience of description, if the words "upper" and "lower" appear in the present application, they only mean the same direction as the upper and lower directions of the drawing itself, and do not limit the structure, but only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as limiting the present application, indicating or implying that the device or element must have a specific orientation, be constructed and operated in a specific orientation.

[0030] Embodiment 1

[0031] The present embodiment provides a cable clamp for a suspension bridge, as shown in the drawing, comprising two cable clamp parts, namely a first cable clamp part 1 and a second cable clamp part 2, wherein the first cable clamp part 1 is made of a steel plate and has a semicircular structure, the second cable clamp part 2 is made of a steel plate and has a semicircular structure, the first cable clamp part 1 and the second cable clamp part 2 can lock and clamp the main cable steel wire through a locking piece and be fixed on the main cable, the locking piece adopts a bolt or a screw rod, and the locking mode adopts the prior art, which will not be described in detail here. Figures 1-4 The first cable clamp part 1 and the second cable clamp part 2 are both semicircular structures, and the two end portions along the ring direction are apposed positions.

[0032] In the present embodiment, as shown in the drawing, the first cable clamp part 1 is provided with a plurality of notches 3 at the two end portions along the ring direction, the plurality of notches 3 are arranged along the axial direction of the first cable clamp part 1, and the notches 3 extend to the end face of the first cable clamp part 1 along the outer end portion of the first cable clamp part 1 along the ring direction.

[0033] Figures 5-6 The notch 3 is arranged on the inner side face of the end portion along the ring direction of the first cable clamp part, and is processed by milling.

[0034] The notches arranged at the two end portions along the ring direction of the first cable clamp part 1 are symmetrically arranged with respect to the center line of the first cable clamp part 1.

[0035] The notches arranged at the two end portions along the ring direction of the first cable clamp part 1 are symmetrically arranged with respect to the center line of the first cable clamp part 1.

[0036] ​Correspondingly, the inner side surface of the two ends of the second cable clamp part 2 in the circumferential direction is also provided with a notch 3, which is also processed by milling. The notch 3 of the second cable clamp part 2 corresponds to the notch of the first cable clamp part, so that the corresponding notches can be aligned after the first cable clamp part and the second cable clamp part are closed.

[0037] In the embodiment, the notch 3 is a rectangular groove, including four groove surfaces. The first groove surface perpendicular to the depth direction of the notch is a plane, and the first groove surface is parallel to the closing direction of the first cable clamp part and the second cable clamp part, that is, the first groove surface perpendicular to the depth direction of the notch is perpendicular to the two end surfaces of the first cable clamp part and the second cable clamp part in the circumferential direction.

[0038] The other three groove surfaces of the notch are the second groove surface, the third groove surface, and the fourth groove surface arranged between the second groove surface and the third groove surface, which are parallel to each other.

[0039] The notch of the first cable clamp part 1 or the second cable clamp part 2 is fixedly provided with an engagement plate 4. The engagement plate can be fixed only in the notch of the first cable clamp part 1 or the second cable clamp part 2, or can be alternately fixed in the notches of the first cable clamp part 1 and the second cable clamp part 2 along the axial direction of the cable clamp. In the embodiment, the engagement plate is alternately fixed in the notches of the first cable clamp part and the second cable clamp part along the axial direction of the cable clamp. The engagement plate has the same fixing mode in the notches of the first cable clamp part and the second cable clamp part. Taking the engagement plate fixed in the notch of the first cable clamp part as an example for description:

[0040] In order to ensure the strength and rigidity of the engagement plate, the engagement plate is made of low-alloy high-strength structural steel. The low-alloy high-strength structural steel can be obtained by using existing materials, and will not be described in detail here. The thickness of the engagement plate is 8-15 mm, which can be selected by those skilled in the art according to actual needs.

[0041] As shown in Figure 7 The shape of the engagement plate matches the shape of the notch. In the embodiment, the engagement plate is a rectangular plate.

[0042] The size of the notch along the axial direction of the cable clamp part is slightly larger than the length of the engagement plate. The size of the notch along the closing direction meets the welding seam arrangement and length requirement of the welded engagement plate. The depth of the notch is slightly larger than the thickness of the engagement plate, so that after the two cable clamp parts are installed, the engagement plate will not intrude into the space of the main cable steel wire.

[0043] In the embodiment, the edge of the first cable clamp part and the side edges on both sides thereof are welded and fixed with the first groove surface of the notch of the first cable clamp part, serving as a welded fixed end.

[0044] The distance of the engaging plate extending out of the slot of the first cable clamp part is such that after the first cable clamp part and the second cable clamp part are assembled, the engaging plate is inserted into the second cable clamp part, and the installation insertion end face of the opposite side of the welding fixed end of the engaging plate has a set distance with the fourth slot face of the slot of the second cable clamp part, and the set distance is equal to the distance between the circumferential end faces of the first cable clamp part and the second cable clamp part.

[0045] The engaging plate arranged in the slot of the second cable clamp part is matched with the slot of the second cable clamp part and the slot of the first cable clamp part in the same way, which is not repeated here.

[0046] As shown in Figure 1 The outer side of the first cable clamp part is provided with an ear plate 5, which is one or two, and can be arranged according to actual needs by those skilled in the art. In use, the first cable clamp part is arranged below the second cable clamp part.

[0047] As shown in Figure 2 The outer side of the first cable clamp part and the outer side of the second cable clamp part are not provided with an ear plate, and are applied to a closed / fastening cable clamp without a lifting lug structure.

[0048] In the manufacturing process of the cable clamp for a suspension bridge of the embodiment, first, a steel plate for forming the first cable clamp part and the second cable clamp part is processed, then the steel plate is rolled into a cylinder, then a locking piece, an ear plate and other stiffening structures are welded, after annealing to eliminate welding stress, the cylinder is cut along the axis to become the first cable clamp part and the second cable clamp part, after finishing the first cable clamp part and the second cable clamp part, a plurality of slots are processed on the inner wall of the circumferential two ends of the two cable clamp parts by milling, and engaging plates are welded and fixed in the slots of the first cable clamp part and the second cable clamp part alternately.

[0049] Other processing steps of the cable clamp are the same as the processing steps of the existing welded cable clamp, which are not described in detail here.

[0050] When the cable clamp is assembled on site, the first cable clamp part and the second cable clamp part are fixed by the locking piece, the engaging plate of the first cable clamp part is inserted into the corresponding slot of the second cable clamp part, the engaging plate of the second cable clamp part is inserted into the corresponding slot of the first cable clamp part, and the engaging plate can block the main cable steel wire from extruding out of the joint gap.

[0051] The cable clamp for a suspension bridge of the embodiment, by arranging the slot and the engaging plate, the engaging plate is fixed in the slot of one cable clamp part, when the two cable clamp parts are spliced and jointed, the engaging plate can be inserted into the slot of the other cable clamp part, thereby preventing the main cable steel wire from extruding out of the gap reserved when the two cable clamp parts are jointed, the slot can be easily processed on the steel plate by milling process, the engaging plate can also be easily fixed with the slot processed on the steel plate by welding method, so that the entire welded cable clamp can be rolled into a shape, the cable clamp structure is simple, the forming difficulty is small, the manufacturing cost is low, and the manufacturing effect is high.

[0052] The above descriptions are only the preferred embodiments of the present application, and are not intended to limit the present application. The present application can have various changes and modifications for those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A cable clamp for a suspension bridge, comprising two clamp portions detachably connected by a locking member, characterized in that, Multiple slots are provided at the mating points on both sides of the cable clamp. The slots of the two cable clamps match each other. A meshing plate is provided between the corresponding slots of the two cable clamps. One end of the meshing plate is fixed in the slot of one of the cable clamps, and the other end of the meshing plate extends into the slot of the other cable clamp. The groove depth is greater than the thickness of the meshing plate; One end of the meshing plate is fixed inside the groove of one of the cable clamps, and the other end is at a set distance from the groove surface of the other cable clamp that is parallel to the axis of the cable clamp. The slot is opened on the inner side of the mating part of the cable clamp; The length of the slot along the axial direction of the cable clamp is greater than the length of the meshing plate. The thickness of the meshing plate is 8-15mm; The meshing plate is made of low-alloy high-strength structural steel.

2. A cable clamp for a suspension bridge as described in claim 1, characterized in that, The groove surface perpendicular to the depth direction is a plane and parallel to the direction of the two cable clamps.

3. A cable clamp for a suspension bridge as described in claim 1, characterized in that, The meshing plates located on both sides of the cable clamp are symmetrically arranged with respect to the center line of the cable clamp.

4. A cable clamp for a suspension bridge as described in claim 1, characterized in that, One of the cable clamps has an ear plate on its outer side.

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