CN111691296A - Double main cable clamp - Google Patents
Double main cable clamp Download PDFInfo
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- CN111691296A CN111691296A CN202010360623.5A CN202010360623A CN111691296A CN 111691296 A CN111691296 A CN 111691296A CN 202010360623 A CN202010360623 A CN 202010360623A CN 111691296 A CN111691296 A CN 111691296A
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- semi
- clamp
- cable clamp
- ring
- ear plate
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/16—Suspension cables; Cable clamps for suspension cables ; Pre- or post-stressed cables
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/14—Towers; Anchors ; Connection of cables to bridge parts; Saddle supports
Abstract
The present disclosure provides a double main cable clamp, comprising: the cable clamp comprises two cable clamp bodies, two cable clamp bodies and a cable clamp body, wherein each cable clamp body is provided with a first semi-ring clamp and a second semi-ring clamp; the connecting piece, including connecting block and two connecting portion, be equipped with the hoist cable mounting hole on the connecting block, two connecting portion are located two relative sides on the connecting block respectively, and two connecting portions can be dismantled with two first ring clamps respectively and be connected. The double-main-cable clamp can avoid the defects of more casting due to connected casting of the double-main-cable clamp with an integrated structure, the service life is prolonged, the double-main-cable clamp is convenient to disassemble, assemble and maintain, and the maintenance cost is reduced.
Description
Technical Field
The utility model relates to a bridge cable clamp technical field, in particular to two main push-towing rope cable clamps.
Background
In a suspension bridge construction, the clips are connections between the main cable and the deck slings for transferring the load of the deck to the main cable and clamping the main cable. The main cable, which is the load carrying bridge, also needs to carry increasing load stress. In order to improve the load bearing capacity of the main cable of the suspension bridge, two main cables are generally arranged on two sides of a suspension bridge portal frame. Because the cable clamps on the two main cables on the same side of the suspension bridge portal frame are mutually independent, after a bridge is formed, the same steel box girder on the bridge floor needs to be simultaneously connected with the cable clamps on the two main cables, and the condition that the cable clamps on the two main cables on the same side of the suspension bridge portal frame are unbalanced in stress is easily caused by the connection mode.
The related art provides a dual main cable clamp, which includes two clamp bodies, each of which includes an upper semi-ring clamp and a lower semi-ring clamp. Wherein, two upper semi-ring clamps of two cable clamp bodies are integrally cast, and two lower semi-rings of two cable clamp bodies are integrally cast, so that the two cable clamp bodies are of an integrated structure, the sling can apply force to the two cable clamp bodies simultaneously, and the stress of the two cable clamp bodies is balanced.
However, the integrally-configured double main cable clamps in the related art are all integrally cast, and compared with a cast single semi-ring clamp, the integrally cast double semi-ring clamp has the advantages that a finished product is easy to have more casting defects, cannot pass flaw detection, and is easy to damage after being put into use, so that the service life is short; and the maintenance operation can be carried out only by the integral replacement mode, so that the maintenance cost is high.
Disclosure of Invention
The embodiment of the disclosure provides a double-main-cable clamp, which can avoid the defects of the integral double-main-cable clamp caused by integral casting, prolong the service life, facilitate disassembly and assembly, facilitate maintenance and reduce the maintenance cost. The technical scheme is as follows:
the disclosed embodiment provides a two main cable presss from both sides, two main cable presss from both sides and includes: the two cable clamp bodies are parallelly arranged at intervals, and in the direction of the interval arrangement along the two cable clamp bodies, the two first semi-ring clamps of the two cable clamp bodies are positioned between the two second semi-ring clamps of the two cable clamp bodies; the connecting piece comprises a connecting block and two connecting parts, wherein sling mounting holes are formed in the connecting block, the two connecting parts are respectively located on two opposite side faces of the connecting block, and the two connecting parts are respectively detachably connected with the two first semicircular clamps.
In an implementation manner of the embodiment of the present disclosure, the connecting portion includes a first connecting ear plate, a second connecting ear plate is disposed on the first half ring clamp, the first connecting ear plate and the second connecting ear plate are all provided with at least one connecting hole, and a locking member is inserted into the connecting hole to connect the first connecting ear plate and the second connecting ear plate together.
In another implementation manner of the embodiment of the present disclosure, the first connecting ear plate and the second connecting ear plate are all provided with one during the connecting hole, the connecting piece further includes a connecting rod, two ends of the connecting rod are respectively hinged to the first half ring clamp, the first connecting ear plate and the second connecting ear plate pass through the connecting hole is hinged, and the first connecting ear plate and the second connecting ear plate have included angles between rotation axes of the connecting rod.
In another implementation manner of the embodiment of the present disclosure, the connecting portion is connected to an installation area of the first semi-ring clamp, the second connection ear plate is located in the installation area, and the installation area is located in an area where a middle point of an arc of the first semi-ring clamp is located.
In another implementation manner of the embodiment of the present disclosure, the first connecting ear plate is a single ear plate, the second connecting ear plate is a double ear plate, and the first connecting ear plate is located in a gap between two ear plates on the second connecting ear plate; or, first connection otic placode is two otic placodes, the second is connected the otic placode and is single otic placode, the second is connected the otic placode and is located in the clearance of two otic placodes on the first connection otic placode.
In another implementation manner of the embodiment of the present disclosure, there are a plurality of the connecting members, and the plurality of the connecting members are arranged at intervals along the axial direction of the main cable installation hole.
In another implementation manner of the embodiment of the present disclosure, the end surfaces of the first and second semi-ring clamps where the straight edges are located are both provided with radially extending installation portions, the installation portions are provided with pin shaft installation holes, and pin shafts are inserted into the pin shaft installation holes to connect the first and second semi-ring clamps together.
In another implementation manner of the embodiment of the present disclosure, the dual-main cable clamp further includes an anti-torsion pull rod, one end of the anti-torsion pull rod is connected to one of the cable clamp bodies, and the other end of the anti-torsion pull rod is connected to the other cable clamp body.
In another kind of implementation of this disclosed embodiment, the both ends of preventing turning round the pull rod all are equipped with the fastener, two are run through respectively at the both ends of preventing turning round the pull rod the installation department of cable clamp body, the installation department is located two between the fastener, the fastener is including suit in proper order washer, lock nut and the waterproof nut on preventing turning round the pull rod.
In another implementation manner of the embodiment of the disclosure, an included angle between a plane on which the sling mounting hole is arranged on the connecting block and a central axis of the main cable mounting hole is 0-90 degrees.
The beneficial effects brought by the technical scheme provided by the embodiment of the disclosure at least comprise:
the double-main-cable clamp comprises two cable clamp bodies and a connecting piece, wherein the two cable clamp bodies are provided with a first semi-ring clamp and a second semi-ring clamp, the first semi-ring clamp and the second semi-ring clamp of each cable clamp body are in butt joint to form a main cable mounting hole, the two cable clamp bodies are arranged in parallel at intervals, namely, the central axes of the two main cable mounting holes of the two cable clamp bodies are parallel to each other, so that the two cable clamp bodies are arranged side by side, and further the two main cables mounted on the main cable mounting holes of the two cable clamp bodies are also in parallel and parallel distribution, so that the arrangement mode of the two main cables on the same side of a suspension bridge portal is met.
In addition, in the direction along the two cable clamp bodies, the two first half-ring clamps of the two cable clamp bodies are located between the two second half-ring clamps of the two cable clamp bodies, that is, the first half-ring clamp and the second half-ring clamp of the two cable clamp bodies may be arranged in the following manner: the second semi-ring clamp of one cable clamp body, the first semi-ring clamp of the other cable clamp body and the second semi-ring clamp of the other cable clamp body enable the first semi-ring clamps and the second semi-ring clamps of the two cable clamp bodies to be sequentially arranged along the horizontal direction after the double-main cable clamp is actually installed on a main cable. Since the slings are arranged in the sling mounting holes and are used for being connected with a suspension bridge deck, after the slings are arranged on the connecting pieces, the slings can provide acting force in the vertical direction for the double main cable clamps, so that the two first semi-ring clamps connected with the connecting pieces are also subjected to pulling force, and the load of the bridge deck is transmitted to the main cables; compared with the prior art, the two upper semi-rings and the two lower semi-rings of the two cable clamp bodies are integrally cast, and the upper semi-rings and the lower semi-rings are sequentially arranged along the vertical direction, so that the lower semi-rings are subjected to vertical tension after the sling provides vertical acting force to the double-main cable clamp, and the lower semi-rings cover the lower semi-regions of the main cables, so that the lower semi-rings cannot transmit the load of the bridge floor to the main cables after being stressed, and then the load borne by the lower semi-rings is transmitted to the upper semi-rings covering the upper semi-regions of the main cables through the components such as the screws and the nuts connecting the upper semi-rings and the lower semi-rings, so that the main cables bear the load of the bridge floor of the suspension bridge, therefore, in the prior art, the components such as the screws and the nuts of the upper semi-rings and the lower semi-rings can bear a large amount of load force, and the double-main cable clamp needs to frequently replace the screws, Subassembly such as nut, consequently, arrange in proper order along the horizontal direction with the first semi-ring clamp and the second semi-ring clamp of two cable clamp bodies in this disclosed embodiment, it is not fragile to enable two main cable clamp after putting into use, improves life.
Meanwhile, the connecting piece of the double-main-cable clamp comprises a connecting block and two connecting parts, the two connecting parts are respectively positioned on two opposite side surfaces of the connecting block, and the two connecting parts are respectively detachably connected with the two first semi-ring clamps. Can dismantle with two cable clip bodies simultaneously through the connecting piece and be connected like this to be in the same place two cable clip bodies are fixed, restrict two cable clip bodies and possess great degree of freedom and rock, so that make the pulling force of hoist cable can conduct to two cable clip bodies balancedly, prevent that single cable clip in two main push cables from transshipping, improve suspension bridge's security. Meanwhile, the connecting piece is detachably connected with the two first semi-ring clamps, when the double-main-cable clamp is maintained, the two cable clamp bodies can be quickly detached from the connecting piece, damaged parts can be conveniently replaced, integral replacement is not needed, cost is reduced, the first semi-ring joint and the second semi-ring clamp of the two cable clamp bodies do not need to be integrally cast, and the first semi-ring joint and the second semi-ring clamp of the two cable clamp bodies can be separately cast, so that casting defects of casting finished products of the first semi-ring joint and the second semi-ring clamp are not prone to occurring, the first semi-ring joint and the second semi-ring clamp are not prone to damage after being put into use, and service life is prolonged.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.
Fig. 1 is a schematic diagram illustrating an arrangement of main cables of a suspension bridge provided in the related art;
FIG. 2 is a front view of a dual main cable clamp provided by embodiments of the present disclosure;
FIG. 3 is a top view of a dual main cable clamp provided by embodiments of the present disclosure;
FIG. 4 is a schematic structural view of a dual main cable clamp provided by an embodiment of the present disclosure;
FIG. 5 is a schematic view of a first clip half according to an embodiment of the present disclosure;
FIG. 6 is a schematic structural view of a second ring half clamp provided in accordance with an embodiment of the present disclosure;
fig. 7 is a side view of a connector provided by embodiments of the present disclosure.
Detailed Description
To make the objects, technical solutions and advantages of the present disclosure more apparent, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.
Along with the restriction of the Yangtze river passage channel and the factors of bridge position setting of the bridge, the bridge needs to fully consider the increment of the vehicle passing flow of the bridge in the future. A suspension bridge refers to a bridge with cables suspended by pylons and anchored to both banks (or to both ends of the bridge) as the main load-bearing member of the superstructure, the cable geometry of the suspension bridge being determined by the conditions of equilibrium of the forces, generally approaching a parabola. A plurality of suspension ropes and suspension rods are hung from the cable to suspend the bridge floor, and the suspension bridge can bear larger load, so that the suspension bridge is increased.
Along with the increase of bridge span and load, the main cable that bears one of full-bridge load is difficult to bear the super large load stress that consequently increases, present suspension bridge all sets up a main cable respectively in the both sides of suspension bridge portal, because the requirement that suspension bridge born the load is higher and higher, it is difficult to bear bigger and bigger load to set up only a main cable in the both sides of suspension bridge portal, therefore on this basis, through respectively increasing a main cable in the both sides of suspension bridge portal, also set up two main cables respectively in the both sides of suspension bridge portal in order to reduce the load of single main cable, thereby make the main cable of suspension bridge can bear bigger load.
Fig. 1 is a schematic diagram of an arrangement of main cables of a suspension bridge provided in the related art. As shown in fig. 1, based on the scheme that one main cable is arranged on one side of a suspension bridge portal frame, the load of a single main cable B is reduced by respectively adding one main cable B on two sides of a suspension bridge portal frame a in the related art. Namely, two main cables B are respectively arranged on two sides of a suspension bridge portal A to reduce the load of a single main cable, so that the main cable of the suspension bridge can bear larger load. Referring to fig. 1, two main cables B are arranged on two sides of a suspension bridge portal frame a, cable clamps are required to be arranged on the two main cables B on the same side of the suspension bridge portal frame a, and the cable clamps are connected with a steel box girder D on a bridge deck C by means of slings, so that the load of the bridge deck C is borne.
The cable clamp of the related art, which mounts two main cables, is generally a double main cable clamp including two clamp bodies each including an upper semi-ring clamp and a lower semi-ring clamp. And the two upper semi-ring clamps and the two lower semi-ring clamps of the two cable clamp bodies are of an integral structure. However, the integrally-configured double main cable clamps are all integrally cast, and compared with a cast single semi-ring clamp, the integrally-cast double semi-ring clamp has the advantages that a finished product is easy to have more casting defects, cannot pass flaw detection, and is easy to damage and short in service life after being put into use; and the maintenance operation can be carried out only by the integral replacement mode, so that the maintenance cost is high.
Fig. 2 is a front view of a dual main cable clamp provided in an embodiment of the present disclosure, and fig. 3 is a top view of the dual main cable clamp provided in an embodiment of the present disclosure. As shown in fig. 2 and 3, the double main cable clamp includes: two cable clamp bodies 100 and a connector 200.
The two cable clamp bodies 100 are respectively provided with a first semi-ring clamp 102 and a second semi-ring clamp 103, the first semi-ring clamp 102 and the second semi-ring clamp 103 of each cable clamp body 100 are butted to form a main cable mounting hole 101, the two cable clamp bodies 100 are arranged in parallel at intervals, and the two first semi-ring clamps 102 of the two cable clamp bodies 100 are located between the two second semi-ring clamps 103 of the two cable clamp bodies 100 in the direction of the interval arrangement of the two cable clamp bodies 100.
As shown in fig. 2 and 3, the connecting member 200 includes a connecting block 206 and two connecting portions 201, a sling mounting hole 202 is formed in the connecting block, the two connecting portions 201 are respectively located on two opposite sides of the connecting block 206, and the two connecting portions 201 are respectively detachably connected to the two first semicircular clamps 102.
The double-main-cable clamp comprises two cable clamp bodies 100 and a connecting piece 200, wherein the two cable clamp bodies 100 are provided with a first semi-ring clamp 102 and a second semi-ring clamp 103, the first semi-ring clamp 102 and the second semi-ring clamp 103 of each cable clamp body 100 are in butt joint to form a main cable mounting hole 101, the two cable clamp bodies 100 are arranged in parallel at intervals, namely the central axes of the two main cable mounting holes 101 of the two cable clamp bodies 100 are parallel to each other, so that the two cable clamp bodies 100 are arranged side by side, and further two main cables mounted on the main cable mounting holes 101 of the two cable clamp bodies 100 are also arranged in parallel to side by side, and therefore the arrangement mode of the two main cables on the same side of a suspension bridge portal is met.
In addition, in the direction along the two cable clamp bodies 100, the two first half ring clamps 102 of the two cable clamp bodies 100 are located between the two second half ring clamps 103 of the two cable clamp bodies 100, that is, the first half ring clamp 102 and the second half ring clamp 103 in the two cable clamp bodies 100 may be arranged in the following manner: the second half-ring clamp 103 of one cable clamp body 100, the first half-ring clamp 102 of the other cable clamp body 100 and the second half-ring clamp 103 of the other cable clamp body 100 are arranged in sequence in the horizontal direction after the double main cable clamps are actually installed on the main cables. Since the slings are installed in the sling installation holes 202 and the slings are used to connect the deck of the suspension bridge, thus, when the sling is mounted on the connector 200, the sling will provide a vertical force to the dual main cable clamps, so that the two first semi-ring clamps 102 connected to the connector 200 are also under tension, so as to transmit the load of the deck to the main cable, as can be seen from the foregoing, the first semi-ring clamp 102 and the second semi-ring clamp 103 of the clip body 100 are arranged in a horizontal direction, so that the first semi-ring clamp 102 covers at least half of the area of the main cable, that is, the first semi-ring clamp 102 covers the left half area of the main rope, so that the first semi-ring clamp 102, after being pressed by the sling, directly applies pressure to the main rope through the first semi-ring clamp 102 itself, in the process, the screw, the nut and other components for connecting the first semi-ring clamp 102 and the second semi-ring clamp 103 can not bear excessive load force; compared with the related art, in which the two upper half rings and the two lower half rings of the two cable clamp bodies 100 are integrally cast, and the upper half ring clamps and the lower half ring clamps are sequentially arranged in the vertical direction, so that the lower half ring clamps receive a vertical tensile force after the cable provides a vertical acting force to the dual main cable clamp, and the lower half ring clamps cover the lower half area of the main cable, the lower half ring clamps cannot transmit a load to the main cable after being stressed, and further the load borne by the lower half ring clamps is transmitted to the upper half ring clamps covering the upper half area of the main cable through the screw, the nut and other components connecting the upper half ring clamps and the lower half ring clamps, so that the main cable bears the load of the suspension bridge deck, it can be seen that a large amount of load force is borne by the screw, the nut and other components of the upper half ring clamps and the lower half ring clamps in the related art, which results in frequent replacement of the screw for the dual main cable clamp, Therefore, in the embodiment of the present disclosure, the first half-ring clamp 102 and the second half-ring clamp 103 of the two cable clamp bodies 100 are sequentially arranged along the horizontal direction, so that the double main cable clamps are not easily damaged after being put into use, and the service life is prolonged.
Meanwhile, the connecting member 200 of the dual main cable clamp includes a connecting block 206 and two connecting portions 201, the two connecting portions 201 are respectively located on two opposite side surfaces of the connecting block 206, and the two connecting portions 201 are respectively detachably connected with the two first semi-ring clamps 102. Like this can dismantle with two cable clip bodies 100 simultaneously through connecting piece 200 and be connected to together two cable clip bodies 100 are fixed, restrict two cable clip bodies 100 and possess great degree of freedom and rock, so that make the pulling force of hoist cable conduct to two cable clip bodies 100 in a balanced manner, prevent that the single cable clip in two main push-towing ropes from transshipping, improve suspension bridge's security. Meanwhile, as the connecting piece 200 is detachably connected with the two first semi-ring clamps 102, when the double-main-cable clamp is maintained, the two cable clamp bodies 100 can be quickly detached from the connecting piece 200, the damaged parts are convenient to replace, integral replacement is not needed, the cost is reduced, the first semi-ring joints of the two cable clamp bodies 100 and the second semi-ring clamp 103 do not need to be integrally cast, and the first semi-ring joints of the two cable clamp bodies 100 and the second semi-ring clamp 103 can be cast independently, so that casting defects are not easy to occur on the casting finished products of the first semi-ring joints and the second semi-ring clamp 103, and after the double-main-cable clamp is put into use, the service life is not easy to damage.
Wherein, after first semi-ring clamp 102 and second semi-ring clamp 103 cooperation butt joint, can merge into the cable clamp body 100 that is the tube-shape to after first semi-ring clamp 102 and second semi-ring clamp 103 merge, the inner wall of first semi-ring clamp 102 and second semi-ring clamp 103 can enclose into the main push-towing rope mounting hole 101 that is used for cartridge main push-towing rope, behind main push-towing rope installation and main push-towing rope mounting hole 101, through fixings such as bolt, nut, with first semi-ring clamp 102 and second semi-ring clamp 103 fixed connection can.
In the embodiment of the disclosure, as shown in fig. 2, after the first half-ring clamp 102 and the second half-ring clamp 103 are butted and combined, through holes are formed at positions where the first half-ring clamp 102 and the second half-ring clamp 103 are opposite to each other, pull rods are inserted into the through holes of the first half-ring clamp 102 and the second half-ring clamp 103, and external threads are formed at two ends of each pull rod, so that nuts are conveniently installed at two ends of each pull rod, so as to fasten the first half-ring clamp 102 and the second half-ring clamp 103 together.
As shown in fig. 2, after the first half-ring clamp 102 and the second half-ring clamp 103 are butted and combined, a rubber strip 105 may be disposed at a position where the first half-ring clamp 102 and the second half-ring clamp 103 are butted and combined, and the rubber strip 105 is jointed with the first half-ring clamp 102 and the second half-ring clamp 103, so as to improve the sealing property between the first half-ring clamp 102 and the second half-ring clamp 103, so as to prevent moisture from invading into the cable clamp body 100 from a gap between the first half-ring clamp 102 and the second half-ring clamp 103 and corroding the main cable.
As shown in fig. 2 and 3, the connecting portion 201 may include a first connecting ear plate 203, a second connecting ear plate 104 is disposed on the first semi-ring clip 102, at least one connecting hole 204 is disposed on each of the first connecting ear plate 203 and the second connecting ear plate 104, and a locking member is inserted into the connecting hole 204 to connect the first connecting ear plate 203 and the second connecting ear plate 104 together.
In the embodiment of the present disclosure, when the first connecting ear plate 203 and the second connecting ear plate 104 are connected, the first connecting ear plate 203 and the second connecting ear plate 104 are connected together by butting the connecting holes 204 on the first connecting ear plate 203 and the second connecting ear plate 104 and inserting the locking member into the butted connecting holes 204. For example, the locking member may be a threaded rod, which passes through the connecting holes 204 of the first connecting lug plate 203 and the second connecting lug plate 104, and nuts are mounted on both ends of the threaded rod to fix the first connecting lug plate 203 and the second connecting lug plate 104 together.
In a possible implementation manner, when the first connecting lug plate 203 and the second connecting lug plate (104) are provided with a plurality of (at least two) connecting holes 204, the plurality of screws respectively pass through the corresponding connecting holes 204 on the first connecting lug plate 203 and the second connecting lug plate 104 to connect the first connecting lug plate 203 and the second connecting lug plate 104 together, and the plurality of screws simultaneously pass through the first connecting lug plate 203 and the second connecting lug plate 104 to prevent the first connecting lug plate 203 and the second connecting lug plate 104 from rotating relatively, so that two main cables are prevented from shaking along with the two cable clamp bodies 100 after being installed on the cable clamp bodies 100, and the load of a bridge deck of the suspension bridge is uniformly transmitted to the main cables.
Illustratively, as shown in fig. 2 and 3, the first connecting ear plate 203 is a single ear plate, the second connecting ear plate 104 is a double ear plate, and the first connecting ear plate 203 is located in the gap between the two ear plates on the second connecting ear plate 104. The first and second connecting ear plates 203 and 104 are connected together by fitting the single ear plate in the space between the double ear plates and penetrating the double ear plates and the single ear plate simultaneously with the pin.
Illustratively, the first connecting ear plate 203 is a double ear plate, the second connecting ear plate 104 is a single ear plate, and the second connecting ear plate 104 is located in the gap between the two ear plates on the first connecting ear plate 203. The first and second connecting ear plates 203 and 104 are connected together by fitting the single ear plate in the space between the double ear plates and penetrating the double ear plates and the single ear plate simultaneously with the pin.
In another possible implementation manner, when the first connecting ear plate 203 and the second connecting ear plate 104 are both provided with one connecting hole 204, the connecting member 200 may further include a connecting rod 205, two ends of the connecting rod 205 are respectively hinged to the two first half ring clamps 102, the first connecting ear plate 203 and the second connecting ear plate 104 are hinged through the connecting hole 204, and an included angle is formed between the rotation axis of the first connecting ear plate 203 and the rotation axis of the second connecting ear plate 104 and the rotation axis of the connecting rod 205.
In the process of laying the main cables on the bridge, the distance between the two main cables arranged on the suspension bridge portal frame may slightly change. If the two connecting portions 201 of the connecting member 200 are directly and fixedly connected to the two cable clamp bodies 100, the two main cables cannot be in the natural state under the constraint of the connecting member 200, so that part of the stress on the main cables is transmitted to the connecting member 200, and the load borne by the connecting member 200 is increased.
Therefore, in the embodiment of the present disclosure, only one connection hole 204 is disposed on the first connection lug plate 203 and the second connection lug plate 104, so that the two connection portions 201 of the connection member 200 can be respectively hinged to the two cable clamp bodies 100, and therefore, both the two cable clamp bodies 100 can rotate around the connection portion 201, and the distance between the two cable clamp bodies 100 can be adjusted within a certain range by the rotation of the cable clamp bodies 100, so that in the process of laying the main cable on the bridge, even if there is a small change in the distance between the two main cables disposed on the suspension bridge gantry, the position of the two main cables in the natural state is adjusted by rotating the two cable clamp bodies 100, so as to prevent the stress on the main cables from being transmitted to the connection member 200, and improve the reliability of the connection member 200.
After adjusting the two cable clamp bodies 100 to the proper positions through the connecting portion 201, it is necessary to control the two cable clamp bodies 100 to remain at the determined proper positions, and thus it is necessary to lock the degree of freedom between the connecting portion 201 and the cable clamp body 100, that is, to restrain the cable clamp body 100 from rotating on the connecting portion 201.
Fig. 4 is a schematic structural diagram of a double-main cable clamp according to an embodiment of the present disclosure, and as shown in fig. 4, the connecting member 200 may further include a connecting rod 205, and both ends of the connecting rod 205 are hinged to the two first semi-ring clamps 102, respectively, the first connecting lug plate 203 and the second connecting lug plate 104 are hinged through the connecting hole 204, and an included angle is formed between a rotation axis of the first connecting lug plate 203 and a rotation axis of the second connecting lug plate 104 and a rotation axis of the connecting rod 205.
Thus, after the two cable clamp bodies 100 are adjusted to the proper positions by the connecting portions 201, the two ends of the connecting rod 205 are respectively hinged to the two cable clamp bodies 100. Since the rotation axes of the first and second connection lugs 203 and 104 and the rotation axis of the connection rod 205 have an included angle therebetween, the direction of the degree of freedom of the connection portion 201 of the connection member 200 and the direction of the degree of freedom of the connection rod 205 are different. Referring to fig. 4, the rotation axes of the first and second connecting lugs 203 and 104 are at an angle of 90 ° to the rotation axis of the connecting rod 205. Therefore, just make the cable clamp body 100 unable to rotate on connecting portion 201 after installing connecting rod 205 on two cable clamp bodies 100, also make the cable clamp body 100 unable to rotate on connecting rod 205 to realize modulating two cable clamp bodies 100 to suitable position after, fix the locking in suitable position with two cable clamp bodies 100, thereby prevent that two cable clamp bodies 100 from appearing rocking.
As shown in fig. 2, in the embodiment of the present disclosure, the connecting portion 201 is connected to the mounting region of the first half-ring clip 102, the second connecting ear plate 104 is located at the mounting region, and the mounting region is located at the region of the arc midpoint of the first half-ring clip 102. Because the second connecting lug plate 104 is connected with the first connecting lug plate 203, the second connecting lug plate 104 can bear the load transferred from the connecting piece 200, and because the second connecting lug plate 104 is installed in the installation area which is located in the area of the arc midpoint of the first semi-ring clamp 102, the load transferred from the connecting piece 200 can be transferred to the first semi-ring clamp 102 from the arc midpoint of the first semi-ring clamp 102, so that the stress of the first semi-ring clamp 102 is more balanced, and the reliability is improved.
Alternatively, there are a plurality of the connection members 200, and the plurality of connection members 200 are arranged at intervals along the axial direction of the main cable installation hole 101.
Illustratively, as shown in fig. 3, three connecting pieces 200 are arranged on the double main cable clamp, the three connecting pieces 200 are arranged at intervals along the axial direction of the main cable mounting hole 101, and by arranging the three connecting pieces 200 and connecting the first connecting lug plate 203 of the three connecting pieces 200 with the three second connecting lug plates 104 arranged on the first semi-ring clamp 102, the connection reliability can be improved.
Fig. 5 is a schematic structural diagram of a first half ring clamp provided in an embodiment of the present disclosure, and fig. 6 is a schematic structural diagram of a second half ring clamp provided in an embodiment of the present disclosure. As shown in fig. 5 and 6, the end faces of the first semi-ring clamp 102 and the second semi-ring clamp 103 where the straight edges are located are provided with radially extending mounting portions 106, the mounting portions 106 are provided with pin shaft mounting holes 107, and pin shafts are inserted into the pin shaft mounting holes 107 to connect the first semi-ring clamp 102 and the second semi-ring clamp 103 together.
In the embodiment of the present disclosure, as shown in fig. 5 and 6, the mounting portions 106 of the end surfaces where the two straight edges of the first half ring clamp 102 and the second half ring clamp 103 are located are respectively provided with 3 pin shaft mounting holes 107, and are inserted into the pin shaft mounting holes 107 through 6 pin shafts, so as to connect the first half ring clamp 102 and the second half ring clamp 103 together. In addition, because the first semi-ring clamp 102 and the second semi-ring clamp 103 of the cable clamp body 100 are arranged along the horizontal direction, and the sling applies a vertical external force, the screw rod connecting the first semi-ring clamp 102 and the second semi-ring clamp 103 bears a shearing force, so that the shearing force is borne by 6 pin shafts, the situation that the screw rod connecting the first semi-ring clamp 102 and the second semi-ring clamp 103 bears a large shearing force is avoided, and the reliability of the double-main cable clamp is improved.
As shown in fig. 2, the dual main cable clamp further includes an anti-twist tie bar 300, one end of the anti-twist tie bar 300 is connected to one clamp body 100, and the other end of the anti-twist tie bar 300 is connected to the other clamp body 100. Correspondingly, as shown in fig. 5 and 6, the end faces of the two straight edges of the first half-ring clamp 102 and the second half-ring clamp 103 can be further provided with mounting holes 108 of the torsion-proof pull rod 300, the two ends of the torsion-proof pull rod 300 are inserted into the mounting holes 108 of the end faces of the two straight edges of the first half-ring clamp 102 and the second half-ring clamp 103, so that the two cable clamp bodies 100 can be fixed together, and therefore, when a main cable shakes, the torsion-proof pull rod 300 bears partial torque, the connecting piece 200 is prevented from bearing excessive torque and being easily damaged, and the reliability of the double-main-cable clamp is improved.
As shown in fig. 2, fasteners are disposed at both ends of the torsion-proof pull rod 300, both ends of the torsion-proof pull rod 300 respectively penetrate through the mounting portions 106 of the two cable clamp bodies 100, the mounting portions 106 are located between the two fasteners, and the fasteners include washers 301, lock nuts 302, and waterproof nuts 303 sequentially sleeved on the torsion-proof pull rod 300. The washer 301 arranged in the fastener can reduce the abrasion between the anti-torsion pull rod 300 and the mounting part 106 of the cable clamp body 100, the locking nut 302 is arranged to limit and fix the two cable clamp bodies 100 on the anti-torsion pull rod 300, and the waterproof nut 303 is arranged to prevent moisture from invading into a thread pair between the locking nut 302 and the anti-torsion pull rod 300 from a gap between the nut and the anti-torsion pull rod 300, so that the sealing property is improved.
Optionally, an included angle between the plane on which the sling mounting hole 202 is disposed on the connecting block 206 and the central axis of the main cable mounting hole 101 is 0 ° to 90 °.
Fig. 7 is a side view of a connector provided by embodiments of the present disclosure. As shown in fig. 7, the plane of the sling mounting hole 202 on the connecting block 206 has an angle of 10 ° with the central axis of the main cable mounting hole 101. That is, the plane on which the sling mounting holes 202 are formed on the connecting block 206 is an inclined plane, and the plane on which the sling mounting holes 202 are formed on the connecting block 206 is a position for mounting a sling anchor head of a steel box girder of a bridge deck, so that after the double main cable clamps are mounted on the main cables, it is necessary to ensure that the plane on which the sling mounting holes 202 are formed on the connecting block 206 is parallel to the bridge deck in order to ensure that the slings are in a vertical state to bear loads well. As shown in fig. 7, the plane of the connecting block 206 with the sling mounting hole 202 has an angle of 10 ° with the central axis of the main cable mounting hole 101, so that the plane of the connecting block 206 with the sling mounting hole 202 is parallel to the bridge floor, and the sling is vertical and can bear load well.
Wherein, the included angle setting between the plane that is equipped with hoist cable mounting hole 202 on the connecting block 206 and the axis of main cable mounting hole 101 is between 0 to 90, and at the in-process of actual installation, the included angle between the plane that is equipped with hoist cable mounting hole 202 on the connecting block 206 and the axis of main cable mounting hole 101 can be decided according to the mounted position of this pair of main cable clamp on the main cable to it is parallel with the bridge floor to guarantee to be equipped with the plane of hoist cable mounting hole 202 on the connecting block 206.
The above description is meant to be illustrative of the principles of the present disclosure and not to be taken in a limiting sense, and any modifications, equivalents, improvements and the like that are within the spirit and scope of the present disclosure are intended to be included therein.
Claims (10)
1. A dual main cable clamp, comprising:
two cable clamp bodies (100) each having a first semi-ring clamp (102) and a second semi-ring clamp (103), the first semi-ring clamp (102) and the second semi-ring clamp (103) of each cable clamp body (100) are butted to form a main cable mounting hole (101), the two cable clamp bodies (100) are arranged in parallel at intervals, and in the direction of the interval arrangement along the two cable clamp bodies (100), the two first semi-ring clamps (102) of the two cable clamp bodies (100) are located between the two second semi-ring clamps (103) of the two cable clamp bodies (100);
connecting piece (200), including connecting block (206) and two connecting portion (201), be equipped with hoist cable mounting hole (202) on connecting block (206), two connecting portion (201) are located respectively on two relative sides on connecting block (206), two connecting portion (201) respectively with two first semicircle presss from both sides (102) can dismantle the connection.
2. A double main cable clamp according to claim 1, wherein the connecting portion (201) comprises a first connecting ear plate (203), a second connecting ear plate (104) is provided on the first semi-ring clamp (102), at least one connecting hole (204) is provided on each of the first connecting ear plate (203) and the second connecting ear plate (104), and a locking member is inserted into the connecting hole (204) to connect the first connecting ear plate (203) and the second connecting ear plate (104) together.
3. The double main cable clamp according to claim 2, wherein when the first connecting ear plate (203) and the second connecting ear plate (104) are both provided with one connecting hole (204), the connecting member (200) further comprises a connecting rod (205), two ends of the connecting rod (205) are respectively hinged to the two first semi-ring clamps (102), the first connecting ear plate (203) and the second connecting ear plate (104) are hinged through the connecting hole (204), and an included angle is formed between a rotation axis of the first connecting ear plate (203) and a rotation axis of the second connecting ear plate (104) and a rotation axis of the connecting rod (205).
4. Double main cable clamp according to claim 2, wherein the connection portion (201) is connected to a mounting area of the first semi-ring clamp (102), the second connection lug (104) being located in the mounting area, the mounting area being located in the area of the arc midpoint of the first semi-ring clamp (102).
5. A twin main cable clamp according to claim 2, characterised in that the first connecting lug (203) is a single lug plate and the second connecting lug (104) is a double lug plate, the first connecting lug (203) being located in the gap between the two lug plates on the second connecting lug (104); alternatively, the first and second electrodes may be,
the first connecting ear plate (203) is a double-ear plate, the second connecting ear plate (104) is a single-ear plate, and the second connecting ear plate (104) is positioned in a gap between the two ear plates on the first connecting ear plate (203).
6. The double main cable clamp according to any one of claims 1 to 5, wherein the connecting member (200) is provided in plurality, and the plurality of connecting members (200) are arranged at intervals in the axial direction of the main cable installation hole (101).
7. The double main cable clamp according to any one of claims 1 to 5, wherein the first semi-ring clamp (102) and the second semi-ring clamp (103) are provided with radially extending mounting portions (106) on end faces where the straight edges are located, the mounting portions (106) are provided with pin mounting holes (107), and pins are inserted into the pin mounting holes (107) to connect the first semi-ring clamp (102) and the second semi-ring clamp (103) together.
8. The dual main cable clamp according to claim 7, further comprising an anti-twist tie bar (300), one end of the anti-twist tie bar (300) being connected to one of the clamp bodies (100), the other end of the anti-twist tie bar (300) being connected to the other clamp body (100).
9. The double-main-cable clamp according to claim 8, wherein fasteners are arranged at two ends of the anti-torsion pull rod (300), two ends of the anti-torsion pull rod (300) penetrate through two installation parts (106) of the cable clamp body (100) respectively, the installation parts (106) are located between the two fasteners, and the fasteners comprise washers (301), locking nuts (302) and waterproof nuts (303) which are sequentially sleeved on the anti-torsion pull rod (300).
10. The double main cable clamp according to any one of claims 1 to 5, wherein the plane on which the sling mounting hole (202) is provided on the connecting block (206) has an angle of 0 ° to 90 ° with the central axis of the main cable mounting hole (101).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010360623.5A CN111691296B (en) | 2020-04-30 | 2020-04-30 | Double main cable clamp |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010360623.5A CN111691296B (en) | 2020-04-30 | 2020-04-30 | Double main cable clamp |
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| CN111691296A true CN111691296A (en) | 2020-09-22 |
| CN111691296B CN111691296B (en) | 2022-04-15 |
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