Split-type cable-supported crane and cable-supported hoisting device

Abstract

A split-type cable-supported crane and a cable-supported hoisting device. The split-type cable-supported crane comprises two cable-supported cranes respectively arranged at the two sides of a bridge in the length direction, wherein each cable-supported crane comprises: a traveling trolley (1); a traction load-bearing device (2) arranged along the length direction of the bridge, wherein the two traveling trolleys (1) are slidably connected to the traction load-bearing devices (2) respectively, so that the traveling trolleys (1) can move to any position in the length direction of the bridge; a lateral pulling device (3) arranged along the width direction of the bridge, wherein the two traveling trolleys (1) are both connected to the lateral pulling device (3) to adjust the lateral distance between the two traveling trolleys (1); and a hoisting device (4) connected to the traveling trolley (1), wherein the hoisting device (4) comprises a C-shaped frame (42), a first end (4311) and a second end (4351), the C-shaped frame (42) forms an opening (4211) for providing clearance for a main cable (6), and the first end (4311) and the second end (4351) drive the main cable (6) to be connected to a main girder (7).

Description

Split type cable carrying crane and cable carrying hoisting device TECHNICAL FIELD

[0001] The present application belongs to the technical field of bridge construction, and particularly relates to a split type cable carrying crane and a cable carrying hoisting device. BACKGROUND

[0002] The cable carrying crane and the cable crane are main hoisting devices for erecting the main girder of a suspension bridge.

[0003] The cable carrying crane is mainly suitable for parallel main cable suspension bridges, because the cable carrying crane walks on the main cable and it is difficult to change the span.

[0004] Therefore, there is a cable crane on the market, which is suitable for both parallel main cable suspension bridges and spatial cable suspension bridges, and can meet the hoisting problem of the main girder between different main cables, and is suitable for both parallel main cable suspension bridges and spatial cable suspension bridges. However, as the span requirement increases, the cable crane has the problem of limited hoisting capacity. SUMMARY

[0005] In order to overcome the shortcomings of the prior art, the present application provides a split type cable carrying crane, which controls the traction load bearing device, the horizontal pulling device and the hoisting device through the control device, realizes the spatial position change and attitude adjustment of the split type cable carrying crane, is suitable for the main girder hoisting construction of the spatial cable suspension bridge in the span change and the height change of the hoisting point between the main cables at different hoisting point positions in the bridge direction, and solves the problem of limited hoisting capacity of the traditional crane as the span increases.

[0006] In order to achieve the above purpose, the present application adopts the following technical scheme:

[0007] In one aspect, the present application provides a split cable crane, comprising two cable cranes arranged on two sides of a bridge in a length direction of the bridge, wherein any one of the cable cranes comprises: a travelling trolley; a traction load bearing device arranged in the length direction of the bridge, two travelling trolleys are respectively connected to the traction load bearing device, the traction load bearing device is used to guide the travelling trolleys to reciprocate in the length direction of the bridge, so that the two travelling trolleys move to any position in the length direction of the bridge; a transverse pulling device arranged in a width direction of the bridge, the two travelling trolleys are connected to the transverse pulling device, the transverse pulling device drives the travelling trolleys to reciprocate in the width direction of the bridge, so as to adjust the transverse distance between the two travelling trolleys; a hoisting device connected to the travelling trolley, the hoisting device comprises a C-shaped frame, a first end and a second end, the C-shaped frame forms an opening facing the bridge beam, the first end is located in the opening, the first end is detachably connected to the main cable, the second end is located on the side of the first end away from the travelling trolley, the second end is detachably connected to the main beam, and the first end and the second end reciprocate in the vertical direction respectively, so as to drive the main cable to be connected to the main beam; and a control device electrically connected to the traction load bearing device, the transverse pulling device and the hoisting device, used to control the spatial position change of the two hoisting devices.

[0008] Preferably, the two travelling trolleys each comprise: a trolley body; at least two load bearing pulleys arranged at the top of the trolley body and spaced apart; and at least two traction pulleys arranged symmetrically on both sides of the trolley body in the length direction of the bridge; the traction load bearing device passes through the load bearing pulleys to carry the two cable cranes, and the traction load bearing device is connected to the traction pulleys to drive the two cable cranes to reciprocate in the length direction of the bridge.

[0009] Preferably, the traction load bearing device is arranged above the main cable, and the two traction load bearing devices each comprise: a load bearing assembly arranged in the length direction of the bridge, the load bearing assembly passing through the load bearing pulleys; and a traction assembly arranged in the length direction of the bridge, the traction assembly being connected to the traction pulleys.

[0010] Preferably, the two load bearing assemblies each comprise: a first anchoring foundation and a second anchoring foundation arranged at two ends of the length of the bridge respectively; a load bearing cable having two ends connected to the first anchoring foundation and the second anchoring foundation respectively and passing through the load bearing pulleys; and a first cable turning saddle and a second cable turning saddle arranged between the first anchoring foundation and the second anchoring foundation in sequence, and the load bearing cable passes through the first cable turning saddle and the second cable turning saddle in sequence.

[0011] Preferably, the traction assembly comprises: a third anchoring foundation arranged at one end of the bridge length direction; a traction winch arranged at the other end of the bridge length direction; a first guide wheel, a second guide wheel and a third guide wheel arranged between the third anchoring foundation and the travelling trolley, between the traction winch and the travelling trolley, and on the third anchoring foundation, respectively; and a traction cable arranged around the traction winch, the traction sheaves on the opposite sides of the travelling trolley, the first guide wheel, the second guide wheel and the third guide wheel, and forming a closed loop, so that the two travelling trolleys reciprocate along the bridge length direction.

[0012] Preferably, the lateral pulling device comprises: a first lateral pulling jack and a second lateral pulling jack arranged at the two ends of the bridge width direction, respectively; and a first steel strand having two ends connected to the first lateral pulling jack and the second lateral pulling jack, respectively, and passing through the two travelling trolleys, the first lateral pulling jack and the second lateral pulling jack pulling or holding the first steel strand to change the lateral spacing between the two travelling trolleys.

[0013] Preferably, each of the hoisting devices comprises an electric hoist, a swing assembly, a C-shaped frame and a hoisting assembly; the electric hoist comprises a fixed end and a movable end, the fixed end is fixedly connected to the bottom of the travelling trolley, and the movable end is movably connected to the C-shaped frame in the vertical direction; the hoisting assembly comprises a first end and a second end moving in the vertical direction, the first end is detachably connected to the main cable, and the second end is detachably connected to the main beam; the swing assembly comprises a telescopic jack, a first hinged member and a second hinged member, one end of the telescopic jack is connected to the C-shaped frame, the other end is connected to the hoisting assembly, the first hinged member is connected to the C-shaped frame, the second hinged member is connected to the hoisting assembly, and the first hinged member and the second hinged member are rotationally connected, and the telescopic jack drives the hoisting assembly to swing by telescoping.

[0014] Preferably, each of the C-shaped frames comprises: a frame main body forming the opening for accommodating the main cable; a posture sensor arranged on the frame main body; a screw motor electrically connected to the posture sensor; and an adjusting block arranged on the frame main body, the adjusting block being connected to the output end of the screw motor, the posture sensor determining the eccentricity of the cable crane and controlling the screw motor to drive the adjusting block to move, so as to change the gravity center position of the C-shaped frame.

[0015] Preferably, the two lifting assemblies each comprise: a lifting frame detachably connected to the bottom of the C-shaped frame, and the first end of the lifting frame is detachably connected with the main cable; a hydraulic lifting jack arranged on the lifting frame; a winding device arranged on one side of the lifting frame; a second steel strand having one end connected to the winding device, and the hydraulic lifting jack drives the winding device to wind or unwind the second steel strand; and a carrying beam connected with the end of the second steel strand away from the winding device, and the carrying beam has the second end detachably connected with the main beam.

[0016] In another aspect, the present application provides a cable-mounted lifting device, comprising the split-type cable-mounted crane as described in any one of the above aspects, and further comprising the main cable and the main beam, and the main beam is connected with the main cable through the lifting device.

[0017] The present application has the following beneficial effects: the present application controls the traction load-bearing device, the lateral pulling device and the lifting device through the control device, supports two travelling cranes through the traction load-bearing device, and enables the two travelling cranes to move synchronously in the span direction of the bridge, enables the two travelling cranes to move relatively close to or away from each other through the lateral pulling device, enables vertical movement through the lifting device, installs the main cable and the main beam, and has a clear functional design, so that the cable-mounted crane is suitable for the main beam lifting construction of the main cable interval change and the lifting point height change of the main beam at different lifting point positions of the space cable suspension bridge in the span direction of the bridge, effectively solves the industry problem of difficult space posture adjustment of the traditional cable-mounted crane, and simultaneously, the first end of the lifting device is detachably connected with the main cable, and the second end is detachably connected with the main beam, when the travelling crane moves above the main beam, the lifting of the main beam is completed through the detachable connection with the main cable and the main beam by the power of the main cable, so that the lifting is completed, the problem of lifting capacity limitation of the traditional crane with the increase of the span is solved, and in addition, the C-shaped frame forms an opening facing the bridge beam body, the opening is used for avoiding the main cable, and the problems of interference between the existing split-type cable-mounted crane and the main cable of the suspension bridge and the like are effectively solved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 is a front view of a split-type cable-mounted crane provided by an embodiment of the present application;

[0019] Fig. 2 is a side view based on Fig. 1;

[0020] Fig. 3 is a schematic view of a load-bearing assembly based on Fig. 1;

[0021] Fig. 4 is a schematic view of a travelling crane structure based on Fig. 1;

[0022] Fig. 5 is a schematic view of a traction assembly structure based on Fig. 1;

[0023] Fig. 6 is a schematic view of a C-shaped frame structure based on Fig. 1;

[0024] Figure 7 is a schematic diagram of a hoisting assembly structure based on Figure 1;

[0025] Figure 8 is a schematic diagram of a swing assembly structure based on Figures 6 and 7;

[0026] Figure 9 is a schematic diagram of a lateral pulling device structure based on Figure 1;

[0027] Figure 10 is a schematic diagram of the main girder before hoisting of the present application;

[0028] Figure 11 is a schematic diagram of the main girder during hoisting of the present application;

[0029] Figure 12 is a schematic diagram of the main girder after hoisting of the present application.

[0030] In the figure: 1, travelling crane; 2, load bearing device; 3, lateral pulling device; 4, hoisting device; 5, control device; 6, main cable; 7, main girder; 11, vehicle body; 12, load bearing pulley; 13, traction pulley; 21, load bearing assembly; 211, first anchoring foundation; 212, second anchoring foundation; 213, load bearing cable; 214, first cable turning saddle; 215, second cable turning saddle; 22, traction assembly; 221, third anchoring foundation; 222, traction winch; 223, first guide wheel; 224, second guide wheel; 225, third guide wheel; 226, traction cable; 31, first lateral pulling hydraulic jack; 32, second lateral pulling hydraulic jack; 33, first steel strand; 41, electric hoist; 411, fixed end; 412, movable end; 42, C-shaped frame; 421, frame main body; 4211, opening; 4212, first side; 4213, second side; 4214, third side; 422, attitude sensor; 423, screw motor; 424, adjusting block; 43, hoisting assembly; 431, lifting frame; 4311, first end; 432, hydraulic lifting jack; 433, second steel strand; 434, retracting device; 435, pole beam; 4351, second end; 44, swing assembly; 441, telescopic hydraulic jack; 442, first hinged piece; 443, second hinged piece; 61, temporary cable clamp; 62, permanent cable clamp; 63, boom; 64, catwalk.

[0031] The embodiments of the present application will be described in detail below with reference to the accompanying drawings. DETAILED DESCRIPTION

[0032] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, can be electrically connected; can be directly connected, can be indirectly connected through an intermediate medium, can be internal communication of two components. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0033] In order to make the purpose, technical scheme and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings. Obviously, the described embodiments are only part of the embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0034] The present application will be further described below with reference to the drawings and embodiments.

[0035] Cable crane and cable crane are the main hoisting equipment for the erection of main girder of suspension bridge. The cable crane is mainly suitable for parallel main cable suspension bridge, because the cable crane walks on the main cable, and it is difficult to change the span. Therefore, there is also a cable crane on the market, which is suitable for both parallel main cable suspension bridge and spatial cable suspension bridge, which can meet the hoisting problem of different main cables of main girder, and is suitable for both parallel main cable suspension bridge and spatial cable suspension bridge, but the cable crane has the problem of limited hoisting capacity as the span requirement increases.

[0036] In view of this, as shown in FIGS. 1-12, the embodiment provides a split cable crane, which includes two cable cranes arranged on two sides of the bridge length direction respectively, wherein any cable crane includes: a traveling trolley 1; a traction load bearing device 2 arranged along the bridge length direction, two traveling trolleys 1 are respectively connected to the traction load bearing device 2, the traction load bearing device 2 is used to guide the traveling trolleys 1 to move reciprocally along the bridge length direction, so that the two traveling trolleys 1 move to any position in the bridge length direction; a horizontal pulling device 3 arranged along the bridge width direction, the two traveling trolleys 1 are connected to the horizontal pulling device 3, the horizontal pulling device 3 drives the traveling trolleys 1 to move reciprocally along the bridge width direction, so as to adjust the horizontal distance between the two traveling trolleys 1; a hoisting device 4 connected to the traveling trolley 1, the hoisting device 4 includes a C-shaped frame 42, a first end 4311 and a second end 4351, the C-shaped frame 42 forms an opening 4211 facing the bridge girder, the opening 4211 is used to avoid the main cable 6, the first end 4311 is located in the opening 4211, the first end 4311 is detachably connected to the main cable 6, the second end 4351 is located on the side of the first end 4311 away from the traveling trolley 1, the second end 4351 is detachably connected to the main girder 7, the first end 4311 and the second end 4351 reciprocally move along the vertical direction respectively, so as to drive the main cable 6 and the main girder 7 to be connected; and a control device 5 electrically connected with the traction load bearing device 2, the horizontal pulling device 3 and the hoisting device 4, used to control the spatial position change of the two hoisting devices 4.

[0037] The embodiment controls the traction load bearing device 2, the horizontal pulling device 3 and the hoisting device 4 through the control device 5, supports the two traveling trolleys 1 through the traction load bearing device 2, and enables the two traveling trolleys 1 to move synchronously in the bridge span direction, enables the two traveling trolleys 1 to move relatively close to or away from each other through the horizontal pulling device 3, enables the vertical movement through the hoisting device 4, and installs the main cable 6 and the main girder 7, so that the cable crane is suitable for the main girder 7 hoisting construction of the main cable 6 interval change and the hoisting point height change of the main girder 7 at different hoisting point positions of the spatial cable suspension bridge in the bridge direction, effectively solves the industry problem of the difficult spatial posture adjustment of the traditional cable crane, meanwhile, the first end 4311 of the hoisting device 4 is detachably connected with the main cable 6, and the second end 4351 is detachably connected with the main girder 7, when the traveling trolley 1 moves above the main girder 7, the hoisting is completed through the detachable connection with the main cable 6 and the main girder 7, and the lifting of the main girder 7 is completed by the power of the main cable 6, thereby solving the problem of the hoisting capacity limitation of the traditional crane with the increase of the span, in addition, the C-shaped frame 42 forms the opening 4211 facing the bridge girder, the opening 4211 is used to avoid the main cable 6, and effectively solves the problem of the interference between the existing split cable crane and the main cable 6 of the suspension bridge.

[0038] For the walking trolley 1, please continue to refer to FIG. 1, FIG. 2 and FIG. 4, two said walking trolley 1 includes: a vehicle body 11; at least two load-bearing pulleys 12, rolling and spaced apart at the top of the vehicle body 11; and at least two traction pulleys 13, rolling and symmetrically arranged on both sides of the vehicle body 11 along the length direction of the bridge; the traction load-bearing device 2 passes through the load-bearing pulley 12 to carry two said cable crane, the traction load-bearing device 2 is connected with the traction pulley 13 to drive two said cable crane reciprocating movement along the length direction of the bridge. By setting load-bearing pulley 12 and traction pulley 13 on the walking trolley 1, load-bearing pulley 12 can hoist the walking trolley 1 above the main cable 6, and the traction pulley 13 can move the walking trolley 1 along the length direction of the bridge, realizing the hoisting and spatial movement of the cable crane along the length direction of the bridge. Specifically, three load-bearing pulleys 12 are arranged at the top of each walking trolley 1, and the three load-bearing pulleys 12 are located on the same straight line, and the axis direction of each load-bearing pulley 12 is parallel to the length direction of the bridge; at the same time, one traction pulley 13 is symmetrically arranged on each side of the walking trolley 1 along the width direction of the bridge.

[0039] For the traction load-bearing device 2, please continue to refer to FIG. 1, FIG. 2, FIG. 3 and FIG. 5, the traction load-bearing device 2 is arranged above the main cable 6, two said traction load-bearing device 2 includes: a load-bearing assembly 21 arranged along the length direction of the bridge, the load-bearing assembly 21 passes through the load-bearing pulley 12; and a traction assembly 22 arranged along the length direction of the bridge, the traction assembly 22 is connected with the traction pulley 13. Specifically, the load-bearing assembly 21 is correspondingly provided with six groups, and each group of load-bearing assembly 21 passes through the gap between the hub of the top of each load-bearing pulley 12, for hoisting the cable crane; at the same time, the traction assembly 22 is provided with two groups, and two groups of traction assembly 22 correspond to the traction pulley 13 on the two walking trolleys 1 respectively, for driving the walking trolley 1 to reciprocate along the length direction of the bridge.

[0040] Further, for the load bearing assembly 21, both of the load bearing assembly 21 comprise: a first anchor base 211 and a second anchor base 212, which are fixedly arranged at both ends of the bridge length respectively; a load bearing cable 213, which is connected to the first anchor base 211 and the second anchor base 212 at both ends respectively and passes through the load bearing pulley 12; and a first cable turning saddle 214 and a second cable turning saddle 215, which are arranged between the first anchor base 211 and the second anchor base 212 in sequence, and the load bearing cable 213 passes through the first cable turning saddle 214 and the second cable turning saddle 215 in sequence. Specifically, the load bearing assembly 21 is fixed by the first anchor base 211 and the second anchor base 212, and the first cable turning saddle 214 and the second cable turning saddle 215 are arranged between the first anchor base 211 and the second anchor base 212, the load bearing cable 213 passes through the first anchor base 211, the first cable turning saddle 214, the second cable turning saddle 215 and the second anchor base 212 in sequence, the load bearing cable 213 is fixed at both ends by the first anchor base 211 and the second anchor base 212, and the direction is changed by the first cable turning saddle 214 and the second cable turning saddle 215 in the middle, and three load bearing cables 213 are arranged on each walking trolley 1, which pass through the above-mentioned load bearing pulley 12 respectively, so as to hoist the walking trolley 1 and make it move back and forth along the bridge length direction.

[0041] Meanwhile, for the traction assembly 22, please continue to refer to FIG. 1, FIG. 2 and FIG. 5, the traction assembly 22 comprises: a third anchor base 221 arranged at one end of the bridge length direction; a traction winch 222 arranged at the other end of the bridge length direction; a first guide wheel 223, a second guide wheel 224 and a third guide wheel 225 arranged between the third anchor base 221 and the walking trolley 1, between the traction winch 222 and the walking trolley 1 and on the third anchor base 221 respectively; and a traction cable 226 arranged around the traction winch 222, the traction pulley 13 on the opposite side of the walking trolley 1, the outer periphery of the first guide wheel 223, the second guide wheel 224 and the third guide wheel 225 and forming a closed loop, so that the two walking trolleys 1 move back and forth along the bridge length direction. Specifically, each walking trolley 1 corresponds to one traction assembly 22, which is composed of the traction winch 222 arranged at one end of the bridge length and the third anchor base 221 arranged at the other end, in addition, the traction cable 226 is arranged between the traction winch 222 and the third anchor base 221, the traction cable 226 passes through the two traction pulleys 13 on both sides of the walking trolley 1 in sequence and changes direction by winding around the first guide wheel 223, the second guide wheel 224 and the third guide wheel 225, so that one traction cable 226 forms a closed loop, when the traction winch 222 drives the traction cable 226 to rotate, the walking trolley 1 can move back and forth along the bridge length direction, therefore, the traction assembly 22 as a driving force can drive the walking trolley 1 to move back and forth.

[0042] For the lateral pulling device 3, please continue to refer to FIG. 1, FIG. 2 and FIG. 8, the lateral pulling device 3 includes: a first lateral pulling jack 31 and a second lateral pulling jack 32, which are respectively arranged at both ends of the bridge width direction; and a first steel strand 33, the two ends of which are respectively connected to the first lateral pulling jack 31 and the second lateral pulling jack 32, and the first steel strand 33 passes through the two walking cranes 1, and the first lateral pulling jack 31 and the second lateral pulling jack 32 pull or hold the first steel strand 33 to change the lateral distance between the two walking cranes 1. The lateral pulling device 3 is provided with only one set, and is arranged along the bridge width direction, and the two ends are the first lateral pulling jack 31 and the second lateral pulling jack 32, which are connected by the first steel strand 33 in the middle, and the two ends are not fixed and can move along the bridge length direction with the walking crane 1, and the first steel strand 33 passes through the hub gap of the traction sheave 13 on one side of the two walking cranes 1 in turn, when the first lateral pulling jack 31 and the second lateral pulling jack 32 pull or hold the first steel strand 33, the first steel strand 33 drives the two walking cranes 1 to move towards or away from each other at the same time, adjusting the distance between them. In addition, since only one set of first steel strand 33 is provided in this embodiment, which passes through the two walking cranes 1 at the same time, the movement of the two walking cranes 1 along the bridge length direction is also synchronous movement, which can maintain consistency and effectively adapt to the change of the distance between the main cables 6.

[0043] In this embodiment, the traction load bearing device 2 and the lateral pulling device 3 use load bearing cable 213 and traction cable 226 respectively, and the cable system design has high safety factor, effectively improving the stability and safety of the walking of the split type wire carrier crane.

[0044] For the hoisting device 4, please continue to refer to FIG. 1, FIG. 2, FIG. 6, FIG. 7, both of the hoisting devices 4 include an electric hoist 41, a C-shaped frame 42 and a hoisting assembly 43; the electric hoist 41 includes a fixed end 411 and a movable end 412, the fixed end 411 is fixedly connected to the bottom of the walking crane 1, and the movable end 412 is movably connected to the C-shaped frame 42 in the vertical direction; the opening 4211 formed by the C-shaped frame 42 is arranged towards the center of the bridge; the hoisting assembly includes the first end 4311 and the second end 4351 which move in the vertical direction, the first end 4311 is detachably connected to the main cable 6, and the second end 4351 is detachably connected to the main beam 7.

[0045] Further, please refer to Fig. 8, the hoisting device 4 further comprises a swing assembly 44; the swing assembly 44 comprises a telescopic jack 441, a first hinged piece 442 and a second hinged piece 443, one end of the telescopic jack 441 is connected with the C-shaped frame 42, the other end is connected with the hoisting assembly 43, the first hinged piece 442 is connected with the C-shaped frame 42, the second hinged piece 443 is connected with the hoisting assembly 43, and the first hinged piece 442 and the second hinged piece 443 are rotationally connected, the telescopic jack 441 drives the hoisting assembly 43 to swing. The first hinged piece 442 and the second hinged piece 443 are respectively arranged at the connection positions of the C-shaped frame 42 and the hoisting assembly 43, when the telescopic jack 441 is telescoped, the hoisting assembly 43 is swung relative to the C-shaped frame 42, so as to adjust the swing amplitude of the C-shaped frame 42, thereby realizing the position adjustment of the spatial split-type cable crane.

[0046] Specifically, two electric hoists 41 are arranged at the bottom of each travelling trolley 1 along the bridge width direction, and each electric hoist 41 comprises a fixed end 411 and a movable end 412, wherein the fixed end 411 is fixedly connected with the bottom of the travelling trolley 1, the movable end 412 is movable up and down along the vertical direction, and is connected with the top of the C-shaped frame 42, i.e. can drive the C-shaped frame 42 to move up and down, the opening 4211 of the C-shaped frame 42 faces the bridge center, and can be used for avoiding the main cable 6, the catwalk 64, the boom 63, the opposite pulling or cross bracing system, etc., the hoisting assembly 43 is connected with the C-shaped frame 42, and comprises a first end 4311 and a second end 4351, the first end 4311 is movable to be connected with the main cable 6, and the second end 4351 is movable to be connected with the main beam 7.

[0047] The functional design of the embodiment is clear, the traction load-bearing device 2 is arranged above the main cable 6, the split-type cable crane is realized to walk along the bridge direction quickly through the travelling trolley 1, the split-type cable crane is realized to be accurately adjusted in the vertical direction and the transverse direction of the bridge through the electric hoist 41 and the horizontal pulling device 3, so that the split-type cable crane is suitable for the main beam 7 hoisting construction at different hoisting point positions of the spatial cable suspension bridge, the distance between the main cables 6 and the height of the hoisting point change, effectively solves the industry problems of slow walking and difficult spatial posture adjustment of the traditional cable crane.

[0048] Further, for the C-shaped frame 42, please continue to refer to FIG. 6, which comprises a frame body 421, an opening 4211 is formed in the frame body 421 for accommodating the main cable 6; a posture sensor 422 is arranged on the frame body 421; a screw motor 423 is electrically connected with the posture sensor 422; and an adjusting block 424 is arranged on the frame body 421, and the adjusting block 424 is connected with the output end of the screw motor 423. The posture sensor 422 determines the eccentricity of the cable crane, and controls the screw motor 423 to drive the adjusting block 424 to move, so as to change the gravity center position of the C-shaped frame 42. In order to ensure that the C-shaped frame 42 keeps the position stable during space movement, and prevent it from interfering with the catenary cable 6 and the boom 63, two C-shaped frames 42 are arranged, the two C-shaped frames 42 are symmetrically provided with the opening 4211, and the posture sensor 422 for determining the eccentricity of the cable crane is arranged on each C-shaped frame 42. When the eccentricity is too large, the posture sensor 422 controls the screw motor 423 to control the adjusting block 424 to move, so as to adjust the eccentricity of the cable crane to a proper value. The C-shaped frame 42 comprises a first side 4212, a second side 4213 and a third side 4214 which are vertically connected in sequence, the first side 4212 is connected with the moving end 412, and the posture sensor 422 is arranged on the first side 4212. The screw motor 423 is arranged on the first side 4212, and the moving direction of the output end of the screw motor 423 is parallel to the first side 4212. The adjusting block 424 is connected with the output end of the screw motor 423, and can move along the direction of the first side 4212. In this embodiment, the eccentricity adjusting device composed of the posture sensor 422, the screw motor 423 and the adjusting block 424 arranged on the frame body 421, and the lifting points of the two electric hoists 41 effectively solve the problems that the crane is easy to deflect and the load bearing cable is unevenly stressed when the split crane moves along the bridge in different lifting heights.

[0049] Meanwhile, for the hoisting assembly 43, please continue to refer to FIG. 7, each of the two hoisting assemblies 43 comprises a lifting frame 431 which is detachably connected to the bottom of the C-shaped frame 42, and the top of the lifting frame 431 is the first end 4311 which is detachably connected with the main cable 6; a hydraulic lifting jack 432 is arranged on the lifting frame 431; a winding and unwinding device 434 is arranged on one side of the lifting frame 431; a second steel strand 433 is connected to the winding and unwinding device 434 at one end, and the winding and unwinding device 434 is driven by the hydraulic lifting jack 432 to wind or unwind the second steel strand 433; and a shoulder pole 435 is connected with the end of the second steel strand 433 which is away from the winding and unwinding device 434, and the shoulder pole 435 has the second end 4351 which is detachably connected with the main beam 7.

[0050] Specifically, the middle position of the lifting frame 431 is detachably connected to one end of the third edge 4214 of the C-shaped frame 42 away from the second edge 4213, and a hydraulic lifting jack 432 is arranged on the lifting frame 431, and a folding device 434 is arranged on one side of the lifting frame 431, the hydraulic lifting jack 432 drives the folding device 434 to drive the second steel wire 433 to be folded, and one end of the second steel wire 433 away from the C-shaped frame 42 can drive the horizontal pole beam 435 to move up and down, so as to drive the second end 4351 of the horizontal pole beam 435 to be detachably connected with the main beam 7 and move the main beam 7 to be connected with the main cable 6, and the folding device 434 comprises two oppositely arranged rotating wheels and an axle connecting the two rotating wheels, the second steel wire 433 is arranged on the axle, and any rotating wheel is connected with the output end of the hydraulic lifting jack 432, and the second steel wire 433 is folded by rotating the axle.

[0051] In the embodiment, the C-shaped frame 42 is used to connect the traction load-bearing device 2 and the hoisting assembly 43 of the split cable crane, and the transverse position of the split cable crane and the main cable 6 is changed through the horizontal pulling device 3, so as to effectively solve the interference problems of the existing split cable crane with the catwalk 64, the suspender 63 and the main cable 6 of the suspension bridge, further realize the needs of a single set of cable crane to meet the bidirectional and sequential and synchronous hoisting of the main beam of the suspension bridge with parallel main cables or spatial main cables, effectively reduce the number of equipment investment and construction cost of the suspension bridge construction, and in addition, the embodiment adopts modular design, the split cable crane is not affected by the distance between the main cables 6, and different hoisting tonnage hydraulic lifting jacks can be replaced to realize the hoisting of different hoisting main beams 7, and the split cable crane has the characteristics of high efficiency, high turnover rate and wide application range.

[0052] In the embodiment, the control device 5 is a PLC system, and the PLC system is used for intelligent control of the telescopic jack 441, the traction winch 222, the electric hoist 41, the screw motor 423, the hydraulic lifting jack 432, the first horizontal pulling through jack 31 and the second horizontal pulling through jack 32.

[0053] On the other hand, referring to FIGS. 9-11, the embodiment of the present application further provides a cable hoisting device 4, which comprises the split cable crane according to any one of the above-mentioned embodiments, and further comprises the main cable 6 and the main beam 7, and the main beam 7 is connected with the main cable 6 through the hoisting device 4. Specifically, a plurality of temporary cable clamps 61 are arranged on the main cable 6 at the same interval, a permanent cable clamp 62 is arranged between any two adjacent temporary cable clamps 61, the distance between any two adjacent permanent cable clamps 62 is the same, a suspender 63 is connected below each permanent cable clamp 62, the suspender 63 is connected with a catwalk at the middle position along the length of the suspender 63, and one end of the suspender 63 away from the permanent cable clamp 62 is detachably connected with the main beam 7.

[0054] The split type cable carrying crane and cable carrying hoisting device 4 provided by the embodiment of the present application comprises two groups of bearing cables 213 and two groups of main cables 6 arranged along the length direction of the bridge, the main cables 6 and the bearing cables 213 have a spacing therebetween, two travelling cranes 1 are respectively slidably connected below the two groups of bearing cables 213, and each travelling crane 1 is driven to move along the length direction of the bridge by a traction assembly 22, and the two travelling cranes 1 are connected by a group of lateral pulling devices 3, so that the lateral movement of the two travelling cranes 1 can be realized. In use, the two travelling cranes 1 are first moved to above the main beam 7 by the traction bearing device 2 and the lateral pulling device 3, at this time, the top end of the lifting frame 431 is aligned with the temporary cable clamp 61 in the vertical direction, the C-shaped frame 42 is lowered by the electric hoist 41, and the position of the hoisting assembly 43 is adjusted by the telescopic jack 441, so that the top end of the lifting frame 431 is connected with the temporary cable clamp 61 of the main cable 6, the power of the main cable 6 is borrowed, the second steel wire 433 is driven to pay off by the hydraulic lifting jack 432, and the second steel wire 433 is driven to take up by the hydraulic lifting jack 432, so that the two groups of second steel wires 433 are driven to move up to the main beam 7 by the flat pole beam 435, after the connection, the two groups of second steel wires 433 are driven to take up by the hydraulic lifting jack 432, and the main beam 7 is moved up to the elevation by the flat pole beam 435, so that the main beam 7 is connected with the end of the boom 63 away from the permanent cable clamp 62 on the two sides, and the hoisting of the main beam 7 segment is completed.

[0055] The embodiment of the present application is connected with the main cable 6 through the temporary cable clamp 61, and the large-tonnage hoisting of the main beam 7 is realized by relying on the bearing capacity of the main cable 6, so that the lightweight design of the split type cable carrying crane is realized, and the practical problems of the heavy weight and high cost of the traditional cable carrying crane are effectively solved.

[0056] The above detailed description of the examples of the present application, but the content is only the preferred embodiment of the present application, and cannot be considered as limiting the scope of the present application. Any equivalent changes and improvements made within the scope of the present application should still belong to the patent coverage range of the present application.

Claims

1. A split cable hoist, characterized by, The cable crane comprises two cable cranes arranged on two sides of the bridge length direction, wherein any one of the cable cranes comprises: a travelling trolley; a traction load bearing device arranged along the bridge length direction, two travelling trolleys are respectively connected to the traction load bearing device, the traction load bearing device is used to guide the travelling trolleys to move reciprocally along the bridge length direction, so that the two travelling trolleys move to any position along the bridge length direction; a horizontal pulling device arranged along the bridge width direction, the two travelling trolleys are connected to the horizontal pulling device, the horizontal pulling device drives the travelling trolleys to move reciprocally along the bridge width direction, so as to adjust the horizontal distance between the two travelling trolleys; a hoisting device connected to the travelling trolley, the hoisting device comprises a C-shaped frame, a first end and a second end, the C-shaped frame forms an opening facing the bridge beam, the opening is used to avoid the main cable, the first end is located in the opening, the first end is detachably connected to the main cable, the second end is located on the side of the first end away from the travelling trolley, the second end is detachably connected to the main beam, the first end and the second end reciprocally move along the vertical direction, so as to drive the main cable to be connected to the main beam; and a control device, the control device is electrically connected to the traction load bearing device, the horizontal pulling device and the hoisting device, and is used to control the spatial position change of the two hoisting devices.

2. A split cable hoist as claimed in claim 1, characterised in that, The two travelling trolleys each comprise: a trolley body; at least two load bearing pulleys which are arranged on the top of the trolley body and are spaced apart; and at least two traction pulleys which are symmetrically arranged on the two sides of the trolley body along the bridge length direction; the traction load bearing device passes through the load bearing pulleys to carry the two cable cranes, and the traction load bearing device is connected to the traction pulleys to drive the two cable cranes to move reciprocally along the bridge length direction.

3. A split cable hoist as claimed in claim 2, wherein, The traction load bearing device is arranged above the main cable, and the two traction load bearing devices each comprise: a load bearing assembly arranged along the bridge length direction, the load bearing assembly passes through the load bearing pulleys; and a traction assembly arranged along the bridge length direction, the traction assembly is connected to the traction pulleys.

4. A split cable hoist as claimed in claim 3, characterised in that, The load bearing assembly each comprises: a first anchor base and a second anchor base arranged at the two ends of the bridge length direction respectively; a load bearing cable having two ends connected to the first anchor base and the second anchor base respectively and passing through the load bearing pulleys; and a first cable turning saddle and a second cable turning saddle arranged between the first anchor base and the second anchor base in sequence, and the load bearing cable passes through the first cable turning saddle and the second cable turning saddle in sequence.

5. A split cable hoist as claimed in claim 3, wherein, The traction assembly each comprises: a third anchor base arranged at one end of the bridge length direction; a traction winch arranged at the other end of the bridge length direction; a first guide wheel, a second guide wheel and a third guide wheel arranged between the third anchor base and the travelling trolley, between the traction winch and the travelling trolley and on the third anchor base respectively; and A traction cable is arranged around the traction sheaves, the traction sheaves on the opposite sides of the two travelling trolleys, the first guide wheel, the second guide wheel and the third guide wheel, and forms a closed loop, so that the two travelling trolleys reciprocate along the length direction of the bridge.

6. A split cable hoist as claimed in claim 1, wherein, The lateral pulling device comprises: a first lateral pulling jack and a second lateral pulling jack, which are arranged at the two ends in the width direction of the bridge, respectively; and a first steel strand, which is connected to the first lateral pulling jack and the second lateral pulling jack at the two ends, respectively, and passes through the two travelling trolleys, and the first lateral pulling jack and the second lateral pulling jack pull or hold the first steel strand to change the lateral distance between the two travelling trolleys.

7. A split cable hoist as claimed in claim 6, characterised in that, Both of the hoisting devices comprise an electric hoist, a swing assembly, a C-shaped frame and a hoisting assembly. The electric hoist comprises a fixed end and a movable end, the fixed end is fixedly connected to the bottom of the travelling trolley, and the movable end is movably connected to the C-shaped frame in the vertical direction. The hoisting assembly comprises the first end and the second end which move in the vertical direction. The swing assembly comprises a telescopic jack, a first hinged member and a second hinged member, one end of the telescopic jack is connected to the C-shaped frame, the other end is connected to the hoisting assembly, the first hinged member is connected to the C-shaped frame, the second hinged member is connected to the hoisting assembly, and the first hinged member and the second hinged member are rotationally connected, and the telescopic jack drives the hoisting assembly to swing.

8. A split cable hoist as claimed in claim 7, characterised in that, Both of the C-shaped frames comprise: a frame body which forms the opening for accommodating the main cable; a posture sensor arranged on the frame body; a screw motor electrically connected to the posture sensor; and an adjusting block arranged on the frame body, the adjusting block is connected to the output end of the screw motor, the posture sensor determines the eccentricity of the cable crane and controls the screw motor to drive the adjusting block to move to change the gravity center position of the C-shaped frame.

9. A split cable hoist as claimed in claim 7, wherein, Both of the hoisting assemblies comprise: a lifting frame which is detachably connected to the bottom of the C-shaped frame, and the top of the lifting frame is the first end, and the first end is detachably connected to the main cable; a hydraulic lifting jack arranged on the lifting frame; a winding and unwinding device arranged on one side of the lifting frame; a second steel strand connected to the winding and unwinding device at one end, and the hydraulic lifting jack drives the winding and unwinding device to wind or unwind the second steel strand; and a carrying pole connected to the end of the second steel strand away from the winding and unwinding device, and the carrying pole has the second end which is detachably connected to the main beam.

10. A cable-lifting device, characterized in that The split cable crane comprises the main cable and the main beam, and the main beam is connected to the main cable through the hoisting device. The split cable crane comprises the main cable and the main beam, and the main beam is connected to the main cable through the hoisting device.

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