CN117699650A - Light-weight roadway-penetrating bridge deck crane - Google Patents

Abstract

A lightweight roadway-penetrating bridge deck crane relates to the field of bridge construction. The light-weight roadway-penetrating bridge deck crane comprises two tracks which are arranged in a flat manner, a crane support arranged on the tracks, a winch arranged at the top of one end of the crane support, and a lifting trolley and a lifting appliance which are arranged at the top and below the other end of the crane support, wherein the top of the lifting trolley is connected with a plurality of lifting pulleys, the top of the lifting appliance is connected with lifting pulleys which are in one-to-one correspondence with the lifting pulleys, the winch is connected with lifting steel cables which are in one-to-one correspondence with the lifting pulleys, the lifting steel cables sequentially pass through the lifting pulleys and the corresponding lifting pulleys and are then connected back to the corresponding lifting pulleys, the two ends of the bottom of the lifting appliance are respectively connected with lifting lugs for connecting beam pieces, and the lifting appliance is configured to rotate along a vertical axis and rotate along a first vertical plane and a second vertical plane which is perpendicular to the first vertical plane. The light-weight roadway-penetrating bridge deck crane can quickly and accurately lift and adjust the height and the posture of the beam piece to adapt to the installation requirement, so that the construction efficiency is improved.

Description

Light-weight roadway-penetrating bridge deck crane

Technical Field

The application relates to the field of bridge construction, in particular to a lightweight roadway-penetrating bridge deck crane.

Background

The cantilever construction method, the swivel method and the cable hanging method are installed on the river-crossing steel box girder bridge, and the cantilever construction method is a construction method of using a floating crane to hoist or a bridge deck crane to hoist at fixed points after adopting a ship or a buoyancy tank to transport the steel girder segment to an installation bridge position, and the method needs a river channel to meet navigation requirements. When the swivel method is adopted for construction, a large swivel space is needed, and the swivel construction needs to comprehensively consider the construction cost and the danger coefficient. When the cable crane is adopted, a larger field anchoring cable needs to be provided, and economy is considered when a large-tonnage beam sheet is hoisted.

At present, the bridge deck crane is mostly lifted at fixed points, namely, after a ship or an automobile transports a beam sheet to the position right below the bridge deck, the bridge deck crane lifts and installs the beam sheet. When the conditions of navigation or traffic are not met under the bridge, the requirements of beam sheet erection cannot be met, the river-crossing steel box girder bridge cannot adopt ships or buoyancy tanks to transport girder segments to the installation bridge position, and a construction method of floating crane lifting or bridge deck crane fixed-point lifting cannot be adopted; meanwhile, when the bridge has a small curve and a large longitudinal slope, the existing bridge deck crane cannot be aligned accurately.

Disclosure of Invention

The utility model aims at providing a lightweight drift formula bridge floor loop wheel machine, its height and gesture that can accurately lift and adjust the roof beam piece are in order to adapt to the installation requirement to improve the efficiency of construction.

The application is realized in such a way that:

the application provides a lightweight drift formula bridge floor crane, it includes the track that two plains were arranged, locate the crane support on the track, locate the hoist engine at crane support one end top, locate the lifting trolley at crane support other end top and locate the hoist below the crane support other end, the lifting trolley roof is connected with a plurality of rotatable hoisting pulleys, the top of hoist is connected with the rotatable hoisting pulley with hoisting pulley one-to-one, the hoist engine is connected with the hoisting cable with hoisting pulley one-to-one, the hoisting cable passes the hoisting pulley in proper order and is connected back to corresponding hoisting pulley after corresponding hoisting pulley, the bottom both ends of hoist are connected with the lug that is used for connecting the roof beam piece respectively, the hoist is configured into can be followed vertical axis rotation, can be followed first vertical plane rotation and can be followed the vertical plane rotation of second of perpendicular to first vertical plane.

In some alternative embodiments, the crane bracket comprises a base movable along a rail, a support frame connected to the top of the base, and a frame connected to the top of the support frame; the base comprises two base main longitudinal beams which are arranged in parallel and at least one base cross beam with two ends respectively connected with the two base main longitudinal beams, and the bottom of the base is connected with a plurality of supporting mechanisms which can stretch and retract to support the two rails; the frame comprises two truss type main beams, a rear cross beam and a front cross beam, wherein two ends of the rear cross beam and the front cross beam are respectively connected with one ends of the two truss type main beams; the support frame includes a pair of rear pillar, a pair of diagonal brace abdominal frame, a pair of front pillar and a pair of leading inclined support frame that arrange in proper order along base length direction, and the bottom and the top of a pair of rear pillar, a pair of diagonal brace abdominal frame, a pair of front pillar and a pair of leading inclined support frame are connected with a pair of base main longitudinal beam and a pair of truss-like girder respectively.

In some alternative embodiments, a rear horizontal diagonal brace is connected between the rear cross beam and the two truss girders, respectively, and a front horizontal diagonal brace is connected between the front cross beam and the two truss girders, respectively.

In some alternative embodiments, the base is coupled with a longitudinal movement mechanism for driving it along the track.

In some alternative embodiments, one end of each of the two base main stringers is provided with an anchoring mechanism for detachably connecting the deck.

In some alternative embodiments, a ladder stand is connected between one side of the base and one side of the frame, and a guardrail is connected to the outer side edge of the frame.

In some alternative embodiments, the lifting trolley comprises a longitudinal moving trolley arranged at the top of the crane bracket, a longitudinal moving oil cylinder for driving the longitudinal moving trolley to move along the length direction of the crane bracket, a transverse moving trolley arranged on the longitudinal moving trolley and a transverse moving oil cylinder for driving the transverse moving trolley to move along the width direction of the crane bracket, and the lifting pulley is rotatably connected at the top of the transverse moving trolley.

In some alternative embodiments, the lifting appliance comprises a lifting main shaft which is vertically arranged, a rotatable slewing bearing is sleeved on the lifting main shaft, the slewing bearing is connected with a slewing mechanism for driving the slewing bearing to rotate around the lifting main shaft, a lifting pulley is rotatably connected to the top surface of the slewing bearing, the bottom of the lifting main shaft is hinged with a first suspender, the bottom of the first suspender is hinged with the middle part of a main beam, the main beam is connected with a transverse leveling mechanism for driving the main beam to rotate along a first vertical plane, two ends of the main beam are respectively hinged with a second suspender, the bottom of each second suspender is respectively hinged with a longitudinal leveling mechanism perpendicular to the main beam, each longitudinal leveling beam is connected with a longitudinal leveling mechanism for driving the main beam to rotate along a second vertical plane, the first vertical plane is perpendicular to the second vertical plane, two ends of each longitudinal leveling beam are respectively hinged with a third suspender, and the bottom of each third suspender is connected with at least one pair of lifting lugs.

In some alternative embodiments, the slewing mechanism comprises a slewing gear fixedly sleeved on the lifting main shaft and at least one slewing motor connected to the slewing bearing, and the output shaft of the slewing motor is connected with a transmission gear meshed with the slewing gear.

In some alternative embodiments, the transverse leveling mechanism is a transverse leveling cylinder with two ends respectively hinged to the main beam and the first boom, and the longitudinal leveling mechanism is a longitudinal leveling cylinder with two ends respectively hinged to the longitudinal equalizing beam and the main beam.

The beneficial effects of this application are: the utility model provides a lightweight drift-through bridge floor crane includes two tracks that plain cloth was arranged, the crane support on locating the track, the hoist engine of crane support one end top is located, the lifting trolley of crane support other end top is located and the hoist of crane support other end below is located, lifting trolley roof portion is connected with a plurality of rotatable hoisting pulleys, the top of hoist is connected with the rotatable hoisting pulley with hoisting pulley one-to-one, the hoist engine is connected with the lifting steel cable with hoisting pulley one-to-one, the lifting steel cable passes hoisting pulley and corresponds hoisting pulley in proper order after being connected back to corresponding hoisting pulley, the bottom both ends of hoist are connected with the lug that is used for connecting the roof beam piece respectively, the hoist is configured into can be followed vertical axis rotation, can be followed first vertical plane rotation and can be followed the vertical plane rotation of second of perpendicular to first vertical plane. The utility model provides a lightweight drift formula bridge floor loop wheel machine can be quick accurate hoist and adjust the height and the gesture of roof beam piece in order to adapt to the installation requirement to improve the efficiency of construction.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered limiting the scope, and that other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a lightweight roadway-penetrating bridge deck crane according to an embodiment of the present application;

fig. 2 is a schematic structural view of a first view angle of a crane bracket in a lightweight roadway-penetrating bridge deck crane according to an embodiment of the present application;

fig. 3 is a schematic structural view of a second view angle of a crane bracket in the lightweight roadway-penetrating bridge deck crane according to the embodiment of the present application;

fig. 4 is a schematic structural diagram of a frame in the lightweight roadway-penetrating bridge deck crane according to the embodiment of the present application;

fig. 5 is a schematic structural view of a first view angle of a lifting trolley in the lightweight roadway-penetrating bridge deck crane according to the embodiment of the present application;

fig. 6 is a schematic structural diagram of a second view angle of a lifting trolley in the lightweight roadway-penetrating bridge deck crane according to the embodiment of the present application;

fig. 7 is a schematic view of a partial cross-sectional structure of a first view angle of a lifting appliance in a lightweight roadway-penetrating bridge deck crane according to an embodiment of the present application;

fig. 8 is a schematic view of a partial perspective structure of a second view angle of a lifting appliance in a lightweight roadway-penetrating bridge deck crane according to an embodiment of the present application.

In the figure: 100. a track; 200. a crane bracket; 210. a base; 211. a base main longitudinal beam; 212. a base cross beam; 213. a support mechanism; 220. a support frame; 221. a rear pillar; 222. a diagonal bracing abdominal frame; 223. a front upright; 224. a front inclined support frame; 225. a connecting rod; 230. a frame; 231. truss type main beams; 232. a rear cross member; 233. a front cross member; 234. a rear horizontal diagonal brace; 235. a front horizontal diagonal brace; 236. a rear section; 237. a middle segment; 238. a front section; 240. a longitudinal movement mechanism; 250. an anchoring mechanism; 260. a ladder stand; 270. guard bars; 300. a hoist; 310. lifting a steel cable; 400. a lifting trolley; 410. a lifting pulley; 420. longitudinally moving the trolley; 430. a longitudinally moving oil cylinder; 440. a traversing trolley; 450. a traversing oil cylinder; 500. a lifting appliance; 510. a lifting pulley; 520. lifting a main shaft; 530. a swivel support; 540. a slewing mechanism; 541. a rotary gear; 542. a rotary motor; 543. a transmission gear; 550. a first boom; 560. a main beam; 570. a transverse leveling mechanism; 580. a second boom; 590. a longitudinal equalizing beam; 600. a longitudinal leveling mechanism; 610. a third boom; 620. lifting lugs; 630. a cable storage frame; 640. a hinged support; 650. a first pin; 660. a second pin; 670. a third pin; 680. a fourth pin; 690. a fifth pin; 700. and a sixth pin.

Detailed Description

For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, which are generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, as provided in the accompanying drawings, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present application, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships that are conventionally put in use of the product of the application, are merely for convenience of description of the present application and simplification of description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be configured and operated in a specific direction, and therefore should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal," "vertical," "overhang," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present application, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.

In this application, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other by way of additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The features and properties of the lightweight lane-crossing bridge deck crane of the present application are described in further detail below in connection with the examples.

As shown in fig. 1, 2, 3, 4, 5, 6, 7 and 8, the embodiment of the present application provides a lightweight lane-passing bridge deck crane, which includes two rails 100 arranged in a flat manner, a crane bracket 200 disposed on the rails 100, a hoist 300 disposed at the top of one end of the crane bracket 200, a trolley 400 disposed at the top of the other end of the crane bracket 200, and a lifting tool 500 disposed below the other end of the crane bracket 200;

the crane bracket 200 comprises a base 210 capable of moving along the track 100, a supporting frame 220 connected to the top of the base 210, and a frame 230 connected to the top of the supporting frame 220; the base 210 comprises two base main longitudinal beams 211 which are arranged in parallel and a base cross beam 212 with two ends respectively connected with the ends of the two base main longitudinal beams 211, the base main longitudinal beam 211 which is arranged in parallel is arranged above each track 100, eight supporting mechanisms 213 which can stretch along the height direction to support the two tracks 100 are connected to the bottom of the base 210, each supporting mechanism 213 comprises 8 cylinder supports, the bottoms of the two ends of the base cross beam 212 are respectively connected with two cylinder supports, and two cylinder supports are respectively connected to the two sides of the middle of each base main longitudinal beam 211; the base 210 is connected with a longitudinal moving mechanism 240 for driving the base to move along the track 100; one end of each of the two base main stringers 211 is provided with an anchor mechanism 250 for detachably connecting the deck. The frame 230 includes two truss girders 231, a rear cross girder 232 and a front cross girder 233, two ends of the rear cross girder 232 and the front cross girder 233 are respectively connected with one ends of the two truss girders 231, each truss girder 231 includes a rear section 236, a middle section 237 and a front section 238 which are detachably connected in sequence through a pin shaft, a rear horizontal diagonal bracing 234 is respectively connected between the rear cross girder 232 and the two rear sections 236, and a front horizontal diagonal bracing 235 is respectively connected between the front cross girder 233 and the two front sections 238. The supporting frame 220 includes a pair of rear posts 221, a pair of V-shaped diagonal braces 222, a pair of front posts 223, and a pair of front diagonal braces 224 symmetrically disposed on both sides of the base 210, the pair of rear posts 221, the pair of V-shaped diagonal braces 222, the pair of front posts 223, and the pair of front diagonal braces 224 are disposed at intervals along the length direction of the base 210, bottoms of the pair of rear posts 221, the pair of diagonal braces 222, and the pair of front posts 223 are respectively connected with the two base main stringers 211, tops of the pair of rear posts 221, the pair of front posts 223, and the pair of front diagonal braces 224 are respectively connected with the two truss girders 231, middle portions of the two front diagonal braces 224 are respectively connected with the two base main stringers 211, and both ends of the two front diagonal braces 224 are respectively connected with the two truss girders 231. Three connecting rods 225 are connected between the front inclined support frame 224 and the corresponding truss type main beams 231, and the connecting rods 225 divide a triangle plane formed by surrounding among the front inclined support frame 224, the truss type main beams 231 and the front upright posts 223 into three triangle planes and a quadrilateral plane. A ladder stand 260 is connected between the base main girder 211 at one side of the base 210 and the truss girder 231 at one side of the frame 230, and guardrails 270 are respectively connected to the outer edges of the two truss girders 231, the rear girder 232 and the front girder 233.

The trolley 400 comprises a longitudinally moving trolley 420 arranged at the top of the crane bracket 200, a longitudinally moving oil cylinder 430 for driving the longitudinally moving trolley 420 to move along the length direction of the crane bracket 200, a transversely moving trolley 440 arranged on the longitudinally moving trolley 420 and a transversely moving oil cylinder 450 for driving the transversely moving trolley 440 to move along the width direction of the crane bracket 200, wherein the top of the transversely moving trolley 440 is connected with two groups of rotatable lifting pulleys 410, and each group comprises five lifting pulleys 410 which are arranged in parallel.

The lifting appliance 500 comprises a lifting main shaft 520 which is vertically arranged, a rotatable slewing bearing 530 is arranged on the lifting main shaft 520 through a thrust bearing sleeve, the slewing bearing 530 is connected with a slewing mechanism 540 for driving the lifting main shaft 520 to rotate around the lifting main shaft, the slewing mechanism 540 comprises a slewing gear 541 fixedly sleeved on the lifting main shaft 520 and two slewing motors 542 symmetrically connected to two ends of the top surface of the slewing bearing 530, and output shafts of the two slewing motors 542 are respectively connected with a transmission gear 543 meshed with the slewing gear 541; the top surface of the swivel support 530 is connected with two groups of rotatable lifting pulleys 510 symmetrically arranged at two ends of the lifting main shaft 520, each group comprises five lifting pulleys 510 which are arranged in parallel, the axes of the lifting pulleys 510 are horizontally arranged, and the top of the swivel support 530 is connected with a cable storage frame 630 for storing and releasing cables. The bottom of the lifting main shaft 520 is hinged with a hinged support 640 through a first pin shaft 650, the bottom of the hinged support 640 is hinged with a first suspender 550 through a second pin shaft 660, the bottom of the first suspender 550 is hinged with the middle part of a main beam 560 through a third pin shaft 670, the main beam 560 is connected with a transverse leveling mechanism 570 for driving the main beam 560 to rotate along a first vertical plane, and the transverse leveling mechanism 570 is a transverse leveling oil cylinder with two ends respectively hinged with the main beam 560 and the first suspender 550; the two ends of the main beam 560 are respectively hinged with second suspenders 580 through fourth pin shafts 680, the bottom of each second suspender 580 is respectively hinged with a longitudinal balance beam 590 vertical to the main beam 560 through a fifth pin shaft 690, each longitudinal balance beam 590 is connected with a longitudinal leveling mechanism 600 for driving the longitudinal balance beam 590 to rotate along a second vertical plane, the first vertical plane is vertical to the second vertical plane, the longitudinal leveling mechanism 600 is a longitudinal leveling cylinder with two ends respectively hinged with the longitudinal balance beams 590 and the main beam 560, the two ends of each longitudinal balance beam 590 are respectively hinged with the middle parts of third suspenders 610 through sixth pin shafts 700, and the two ends of the bottom of each third suspender 610 are respectively connected with a pair of lifting lugs 620; the first pin 650, the second pin 660, the third pin 670, the fourth pin 680, the fifth pin 690 and the sixth pin 700 are all horizontally arranged, and the first pin 650, the third pin 670, the fourth pin 680 and the sixth pin 700 are parallel arranged and perpendicular to the second pin 660, and the second pin 660 and the fifth pin 690 are parallel arranged. Hoist 300 is connected to hoisting cables 310 in one-to-one correspondence with hoisting pulleys 410, and hoisting cables 310 sequentially pass through hoisting pulleys 410 and a corresponding hoisting pulley 510 and are connected back to the corresponding hoisting pulley 410.

According to the light-weight lane-through bridge deck crane provided by the embodiment of the application, two base main stringers 211 which are arranged in parallel are connected with two truss type main beams 231 at the top through the pair of rear upright posts 221, the pair of V-shaped diagonal bracing frames 222, the pair of front upright posts 223 and the pair of front diagonal bracing frames 224 which are sequentially arranged, two ends of the rear transverse beams 232 and the front transverse beams 233 are respectively connected with one ends of the two truss type main beams 231 to form a light-weight lane-through bridge deck crane frame body with a pi-shaped cross section with a hollowed-out structure in the middle, the rigidity of the frame body can be improved on the premise of reducing the dead weight of the frame body to the maximum extent, and a beam transporting vehicle can carry beam pieces to pass from the middle part to a beam taking position of a bridge crane trolley by using a crane 500 for beam piece lifting operation, wherein the two ends of the rear transverse beams 232 and the front transverse beams 233 are respectively connected with one ends of the two truss type main beams 231 to form a rectangular frame, so that the vertical stability of the frame 230 is increased; a rear horizontal diagonal brace 234 is connected between the rear cross member 232 and the two rear sections 236, and a front horizontal diagonal brace 235 is connected between the front cross member 233 and the two front sections 238, respectively, which increases the horizontal stability of the frame 230. The base main longitudinal beam 211 is connected with two truss type main beams 231 at the top through a pair of rear vertical columns 221, a pair of V-shaped diagonal bracing abdominal frames 222, a pair of front vertical columns 223 and a pair of front diagonal bracing frames 224 which are sequentially arranged to form a double-layer structure, so that the base main longitudinal beam is convenient to assemble, disassemble and transport, is more reasonable in stress, is good in unilateral lateral stability, and is connected with a left vertical surface system and a right vertical surface system through the base cross beam 212 to form a whole, so that the lateral stability of the whole light-weight roadway-penetrating bridge deck crane frame body is good.

The crane bracket 200 is provided with the winch 300 at the top of one end, the crane bracket 200 is provided with the lifting trolley 400 and the lifting appliance 500 at the top of the other end, the lifting trolley 400 comprises the longitudinal trolley 420 which can move along the length direction of the crane bracket 200 and the transverse trolley 440 which is arranged on the longitudinal trolley 420 and can move along the width direction of the crane bracket 200, an operator can conveniently push the longitudinal trolley 420 and the transverse trolley 440 to move by using the longitudinal cylinder 430 and the transverse cylinder 450, the position of the lifting pulley 410 connected with the top of the transverse trolley 440 is adjusted quickly and efficiently, the top surface of the slewing bearing 530 of the lifting appliance 500 is connected with the lifting pulleys 510 which are in one-to-one correspondence with the lifting pulleys 410, the lifting cable 310 is connected with the lifting steel cable 310 which is in one-to-one correspondence with the lifting pulleys 410, and the lifting cable 310 sequentially passes through the lifting pulleys 410 and the corresponding lifting pulley 510 and then is connected back to the corresponding lifting pulley 410, so that the transverse and longitudinal positions of the lifting pulleys 510 are adjusted by adjusting the positions of the lifting pulleys 410, and the position of the lifting appliance 500 is ensured to be quickly adjusted by the operator to control the position of a beam piece lifted by the lifting appliance 500.

When the lifting appliance 500 is used for lifting beam sheets, firstly, the lifting lug 620 connected with the third lifting rod 610 is aligned with the corresponding lifting lug on the beam sheet to be lifted through the lifting appliance 500 and then is fixedly connected through a pin shaft, and the winch 300 is controlled to drive the steel wire rope penetrating through the lifting pulley 410 and the lifting pulley 510 to shrink so as to drive the lifting pulley 510 to lift, so that the slewing bearing 530 is lifted and the fixed beam sheet is driven to lift; the control rotation mechanism 540 drives the rotation support 530 to rotate around the lifting main shaft 520 to adjust the horizontal position of the beam, specifically, controls the two rotation motors 542 to start to drive the two transmission gears 543 to rotate, so that the two transmission gears 543 are driven to rotate around the rotation gears 541 by using the rotation gears 541 sleeved on the lifting main shaft 520, thereby driving the two rotation motors 542 and the rotation support 530 to rotate around the lifting main shaft 520, and adjusting the horizontal angle of the beam connected to the bottom of the rotation support 530; the transverse leveling mechanism 570 is controlled to drive the main beam 560 to rotate along the first vertical plane to adjust the angle of the beam piece along the first vertical plane, specifically, the oil cylinder rod of the transverse leveling oil cylinder is controlled to stretch and push the main beam 560 to rotate around the third pin shaft 670, so that the beam piece connected with the bottom of the main beam 560 rotates around the third pin shaft 670 to adjust the angle of the beam piece in the vertical direction in the first vertical plane; the longitudinal leveling mechanism 600 is controlled to drive the longitudinal leveling beam 590 to rotate along the second vertical plane to adjust the angle of the beam piece along the second vertical plane, specifically, the cylinder rod of the longitudinal leveling cylinder is controlled to stretch and push the longitudinal leveling beam 590 to rotate around the fifth pin shaft 690, so that the beam piece connected with the bottom of the longitudinal leveling beam 590 rotates around the third pin shaft 670 in the second vertical plane perpendicular to the first vertical plane to adjust the angle of the beam piece in the other vertical direction; when the horizontal angle of the beam sheet is adjusted through the above steps, the angle in the first vertical plane and the angle in the second vertical plane perpendicular to the first vertical plane, the beam sheet is in the required installation posture, and at this time, the hoist 300 is controlled to drive the wire rope passing through the lifting pulley 410 and the lifting pulley 510 to extend to drive the lifting pulley 510 to descend, so that the beam sheet with the adjusted posture is placed at the preset position, and the beam sheet installation can be performed.

The light-weight roadway-penetrating bridge deck crane provided by the embodiment of the application adopts the crane bracket 200 with the pi-shaped cross section and the hollow structure in the middle, so that the beam piece can be lifted by using the crane trolley 400 and the lifting appliance 500 after penetrating and moving to the lifting position, the problem that the beam piece cannot be installed when being transported to the lower part of the bridge deck crane is solved, meanwhile, the dead weight of the crane bracket 200 is effectively reduced, and the whole light-weight of the light-weight roadway-penetrating bridge deck crane is realized on the premise of ensuring the integral structural strength of the crane bracket 200. The hoist 300 is installed at one end of the crane bracket 200, and is connected back to the corresponding hoisting pulley 410 after passing through the hoisting pulley 410 on the hoisting trolley 400 and the hoisting pulley 510 on the hoisting tool 500 at the other end of the crane bracket 200 through the hoisting steel cable 310, so that a stress mechanism can be dispersed, and the weight of the hoisting trolley 400 is effectively reduced to reduce the stress of the crane bracket 200. The lifting appliance 500 can adjust the rotation angle of the beam piece in the horizontal plane and the rotation angle in the vertical planes along two mutually perpendicular directions, so that the beam piece can be quickly and efficiently adjusted to the required gesture and then moved to the preset installation position for installation, the installation efficiency of the beam piece can be effectively improved, and the problem that a small curve has a longitudinal slope bridge and cannot be accurately aligned is solved.

The embodiments described above are some, but not all, of the embodiments of the present application. The detailed description of the embodiments of the present application is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.

Claims (10)

1. The utility model provides a lightweight drift-through bridge floor crane, its characterized in that, it includes two tracks that the plain cloth was arranged, locates crane support on the track, locate hoist engine at crane support one end top, locate the dolly at crane support other end top and locate hoist below the crane support other end, dolly top is connected with a plurality of rotatable hoisting pulleys, the top of hoist be connected with the rotatable hoisting pulley of hoisting pulley one-to-one, the hoist engine be connected with the lifting cable of hoisting pulley one-to-one, the lifting cable passes in proper order the hoisting pulley with correspond behind the hoisting pulley is connected back to the hoisting pulley, the bottom both ends of hoist are connected with the lug that is used for connecting the roof beam piece respectively, the hoist is configured to be rotatable along vertical axis, rotatable along first vertical plane and rotatable along the second vertical plane of perpendicular to first vertical plane.

2. The lightweight roadway-penetrating bridge crane of claim 1, wherein said crane carriage comprises a base movable along said track, a support frame connected to the top of said base, and a frame connected to the top of said support frame; the base comprises two base main longitudinal beams which are arranged in parallel and at least one base cross beam with two ends respectively connected with the two base main longitudinal beams, and the bottom of the base is connected with a plurality of supporting mechanisms which can stretch and retract to support the two rails; the frame comprises two truss type main beams, a rear cross beam and a front cross beam, wherein two ends of the rear cross beam and the front cross beam are respectively connected with one ends of the two truss type main beams; the support frame includes a pair of rear pillar, a pair of diagonal brace abdominal frame, a pair of front pillar and a pair of leading diagonal brace frame that follow base length direction arranged in proper order, a pair of rear pillar, a pair of diagonal brace abdominal frame, a pair of front pillar and a pair of leading diagonal brace frame's bottom and top respectively with a pair of base main longitudinal beam and a pair of truss girder are connected.

3. The lightweight roadway-penetrating bridge deck crane of claim 2, wherein a rear horizontal diagonal brace is connected between the rear cross beam and the two truss girders respectively, and a front horizontal diagonal brace is connected between the front cross beam and the two truss girders respectively.

4. A lightweight drift-bridge deck crane as claimed in claim 2, characterised in that the base is connected with a longitudinal movement mechanism for driving movement thereof along the track.

5. The lightweight roadway-penetrating bridge floor crane of claim 2, wherein one end of each of the two base main stringers is provided with an anchor mechanism for detachably connecting the bridge floor.

6. The lightweight roadway-penetrating bridge deck crane of claim 2, wherein a ladder stand is connected between one side of the base and one side of the frame, and a guardrail is connected to the outer edge of the frame.

7. The lightweight roadway-penetrating bridge deck crane of claim 1, wherein the lifting trolley comprises a longitudinal moving trolley arranged at the top of the crane bracket, a longitudinal moving oil cylinder for driving the longitudinal moving trolley to move along the length direction of the crane bracket, a transverse moving trolley arranged on the longitudinal moving trolley and a transverse moving oil cylinder for driving the transverse moving trolley to move along the width direction of the crane bracket, and the lifting pulley is rotatably connected to the top of the transverse moving trolley.

8. The lightweight drift-through bridge deck crane according to claim 1, wherein the lifting appliance comprises a lifting main shaft which is vertically arranged, a rotatable swivel support is sleeved on the lifting main shaft, the swivel support is connected with a swivel mechanism for driving the lifting main shaft to rotate around the lifting main shaft, a lifting pulley is rotatably connected to the top surface of the swivel support, the bottom of the lifting main shaft is hinged with a first lifting rod, the bottom of the first lifting rod is hinged with a middle part of a main beam, the main beam is connected with a transverse leveling mechanism for driving the first lifting rod to rotate along a first vertical plane, two ends of the main beam are respectively hinged with a second lifting rod, the bottom of each second lifting rod is respectively hinged with a longitudinal leveling beam which is perpendicular to the main beam, each longitudinal leveling beam is connected with a longitudinal leveling mechanism for driving the second lifting rod to rotate along a second vertical plane, two ends of each longitudinal leveling beam are respectively hinged with a third lifting lug, and each third lifting rod bottom is connected with at least one pair of lifting lugs.

9. The lightweight roadway-penetrating bridge deck crane of claim 8, wherein the slewing mechanism comprises a slewing gear fixedly sleeved on the hoisting main shaft and at least one slewing motor connected to the slewing support, and an output shaft of the slewing motor is connected with a transmission gear meshed with the slewing gear.

10. The lightweight roadway-penetrating bridge floor crane of claim 8, wherein said transverse leveling mechanism is a transverse leveling cylinder with two ends respectively hinged to said main beam and said first boom, and said longitudinal leveling mechanism is a longitudinal leveling cylinder with two ends respectively hinged to said longitudinal equalizer beam and said main beam.