Bridge deck crane for bridge construction

Abstract

The utility model discloses a bridge deck crane for bridge construction. The bridge deck crane comprises a walking track; the movable base is arranged on the walking track; the supporting door frame is arranged on the movable base; the connecting device is arranged on the supporting door frame; the suspension mechanism is arranged on the connecting device; the mounting template is arranged on the suspension mechanism; the top rack is arranged at the upper end of the supporting door frame; the trolley running mechanism is arranged on the top rack; the trolley frame is connected with the trolley running mechanism; the hoisting mechanism and the lifting appliance transverse moving mechanism are arranged on the trolley frame; the hoisting steel wire rope is arranged on the hoisting mechanism and is connected with the lifting appliance transverse moving mechanism; and the rotary hanging bracket is arranged below the trolley frame and is connected with a hoisting steel wire rope. Compared with the prior art, the technical scheme disclosed by the utility model can be compatible with various use scenes and working conditions, and can be used for quickly and accurately lifting and adjusting the height and posture of the beam piece so as to meet the mounting requirements and improve the construction efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to bridge deck crane equipment technical field, concretely, especially relates to a bridge deck crane for bridge construction. BACKGROUND

[0002] At present, most of the traditional bridge deck cranes used for steel structure bridge construction can only be used for steel structure section of bridge construction, and other mechanical equipment is used for concrete section and steel concrete section of steel bridge. Moreover, the traditional bridge deck crane is mostly fixed-point lifting, and the bridge deck crane lifts and installs the steel structure after the steel structure is transported to the position directly below the installation position by ship or automobile. When there is no navigation or traffic condition under the bridge, the installation requirement of the steel structure cannot be met, for example, the ship or floating box cannot be used to transport the steel beam section to the installation bridge position, and the floating crane cannot be used for lifting or the bridge deck crane cannot be used for fixed-point lifting. Meanwhile, when the bridge has small curve and large longitudinal slope, the existing bridge deck crane cannot be accurately positioned.

[0003] A light-weight lane-penetrating bridge deck crane is disclosed in Chinese patent No. CN202311872436.5. In this patent, the rear lifting drum of the bridge deck crane is used to reduce the trolley weight, and the spreader of the crane is provided with horizontal and vertical hydraulic push rods to realize the yaw of the spreader in the horizontal and vertical directions. Meanwhile, the hoist trolley of the bridge deck crane is divided into two parts, one part is a longitudinal moving trolley walking along the main beam direction, and the other part is a transverse moving trolley arranged on the longitudinal moving trolley to control the movement of the spreader in the horizontal direction. The lane-penetrating bridge deck crane can accurately lift and adjust the attitude of the beam piece. However, careful analysis of the patent shows that the lane-penetrating bridge deck crane can only be used for steel structure section of bridge construction, and cannot be used for concrete section and steel concrete section construction. Moreover, the rotation angle of the spreader driven by the hydraulic push rod is small, and the spreader can only rotate along the horizontal axis direction, and cannot rotate in the oblique direction. The horizontal and vertical displacement of the spreader is realized by arranging two sets of trolley systems, which makes the trolley structure more complex, and cannot meet the lifting requirements of current bridge construction, and the construction efficiency is low.

[0004] Therefore, how to provide a bridge deck crane for bridge construction, which can be compatible with multiple use scenarios and working conditions, can quickly and accurately lift and adjust the height and attitude of the beam piece to adapt to the installation requirements, and improve the construction efficiency, has become a technical problem to be solved by the technical personnel in the field. UTILITY MODEL CONTENTS

[0005] To solve the above technical problems, the utility model provides a bridge deck crane for bridge construction, which can be compatible with multiple use scenarios and working conditions, can quickly and accurately lift and adjust the height and attitude of the beam piece to adapt to the installation requirements, and improve the construction efficiency.

[0006] The technical scheme provided by the utility model discloses

[0007] The utility model provides a bridge deck crane for bridge construction, include: walking track, set up on the walking track's mobile base, set up on the mobile base's support portal, set up on the support portal's connecting device, set up on the connecting device with the connecting device swing joint's suspension mechanism, set up on the suspension mechanism's installation template, set up on the support portal upper end's top rack, set up on the top rack's trolley operation mechanism, with trolley operation mechanism connects the trolley frame, set up in the trolley frame top surface four corners's winch mechanism, set up on the trolley frame's sling transverse moving mechanism, set up on the winch mechanism with the sling transverse moving mechanism connects the winch steel wire rope, set up in the trolley frame below with the winch steel wire rope connects the slewing crane.

[0008] Further, in a preferred mode of the utility model, the support portal comprises:

[0009] A plurality of legs connected at one end to the mobile base and at the other end to the top rack;

[0010] A cross brace provided on the legs in the same longitudinal plane;

[0011] A first diagonal brace provided between the legs in the same longitudinal plane;

[0012] A second diagonal brace connected at one end to the legs and at the other end to the cross brace;

[0013] A third diagonal brace provided at one end of the cross brace and connected to the mobile base;

[0014] A vertical brace provided at the other end of the cross brace and connected to the top rack;

[0015] A fourth diagonal brace connected at one end to the legs and at the other end to the vertical brace.

[0016] Further, in a preferred mode of the utility model, the top rack comprises:

[0017] A first main beam provided on the legs;

[0018] A second main beam provided on the legs and parallel to the first main beam;

[0019] A transverse end beam provided between the first and second main beams;

[0020] A trolley limiting mechanism provided at both ends of the first and second main beams;

[0021] A trolley track is arranged on the top surface of the first and second main beams and is connected with the trolley running mechanism.

[0022] Further, in a preferred mode of the utility model, the suspension mechanism comprises: a boom and a sling which are detachably connected with the connecting device.

[0023] The installation template comprises: a bottom mold, a side mold and an inner mold.

[0024] Further, in a preferred mode of the utility model, the spreader transverse moving mechanism comprises:

[0025] A guide sliding rail is arranged on the trolley frame.

[0026] The installation direction of the guide sliding rail is perpendicular to the walking direction of the trolley running mechanism.

[0027] A fixed pulley mechanism is arranged on the guide sliding rail.

[0028] A push rod fixing seat is arranged on the trolley frame.

[0029] A hydraulic push rod is arranged on the push rod fixing seat and is connected with the fixed pulley mechanism.

[0030] Further, in a preferred mode of the utility model, the fixed pulley mechanism comprises:

[0031] A sliding block is arranged on the guide sliding rail.

[0032] Supporting fixing seats are symmetrically arranged on the sliding block.

[0033] An installation shaft is arranged between the supporting fixing seats.

[0034] A fixed pulley set is sleeved on the supporting fixing seat and is connected with the hoisting steel wire rope.

[0035] Further, in a preferred mode of the utility model, the hoisting mechanism and the spreader transverse moving mechanism are each provided with four pieces.

[0036] One of the hoisting mechanism, the spreader transverse moving mechanism and the hoisting steel wire rope forms a steel wire rope winding system.

[0037] Further, in a preferred mode of the utility model, the rotary hanger comprises:

[0038] A balance beam.

[0039] A movable pulley set is arranged on the top surface of the balance beam and is connected with the hoisting steel wire rope.

[0040] A rotary motor is arranged on the balance beam.

[0041] A slewing speed reducer connected with the slewing electric machine;

[0042] A hoisting support arranged below the balance beam;

[0043] A slewing bearing assembly arranged on the hoisting support;

[0044] A slewing gear arranged at the output end of the slewing speed reducer and connected with the slewing bearing assembly;

[0045] A hoisting lug arranged at the bottom surface of the hoisting support.

[0046] Further, in a preferred mode of the utility model, the mobile base comprises:

[0047] Two base main longitudinal beams arranged in parallel with each other;

[0048] A base cross beam arranged between the base main longitudinal beams;

[0049] An anchoring mechanism arranged at one end of the base main longitudinal beam and detachably connected with the construction bridge deck;

[0050] A longitudinal moving mechanism arranged below the base main longitudinal beam and connected with the walking track.

[0051] Further, in a preferred mode of the utility model, the bridge deck crane for bridge construction further comprises:

[0052] A lifting appliance fixing seat arranged on the trolley frame;

[0053] One end of the winch steel wire rope is connected with the winch mechanism, and the other end is connected with the lifting appliance fixing seat;

[0054] A ladder climbing mechanism arranged at one side of the support gantry;

[0055] A safety guardrail arranged at the outer side edge of the top rack.

[0056] The utility model provides a bridge deck crane for bridge construction, include: running track, set up on the mobile base of running track, set up on the support portal of mobile base, set up on the connecting device of support portal, set up on the suspension mechanism of connecting device with connecting device swing joint, set up on the mounting template of suspension mechanism, set up on the top rack of support portal upper end, set up on the trolley running mechanism of top rack, with trolley running mechanism connects the trolley frame, set up in the winch mechanism of trolley frame top surface four corners, set up on the spreader transverse moving mechanism of trolley frame, set up on the winch wire rope of winch mechanism with spreader transverse moving mechanism connection, set up in the rotary hanger of trolley frame below with winch wire rope connection.The utility model discloses a bridge deck crane for bridge construction, its main part structure is by walking track, mobile base, support portal, connecting device, suspension mechanism, installation template, top rack, trolley running mechanism, trolley frame, hoist mechanism, sling transverse moving mechanism, hoist wire rope and rotary hanger composition, wherein, walking track is installed on the construction bridge deck, mobile base sets up the walking track top, mobile base with walking track swing joint, the combination forms the mobile frame, can drive whole bridge deck crane and moves back and forth on the walking track, for support portal, with mobile base fixed connection, moves along with mobile base, support portal is used for supporting top rack and the component of installing on top support then, and, connecting device is installed on support portal, connecting device, suspension mechanism and installation template constitute construction auxiliary device, can carry out the construction operation of bridge concrete section on bridge deck crane by using construction auxiliary device, top rack is set up on support portal top, trolley running mechanism, trolley frame, hoist mechanism, sling transverse moving mechanism, hoist wire rope and rotary hanger composition hoist trolley installation on top rack, by using hoist trolley, when carrying out steel concrete section construction, it can lift steel structure and transport to the designated position and then carries out the operation, realizes the construction operation of bridge steel concrete section, and in hoist trolley, trolley frame is installed on top rack through trolley running mechanism, trolley running mechanism is used for driving whole hoist trolley and moves back and forth on top rack, rotary hanger can be connected hoisting object also can carry out back loading movement, realizes the adjustment of hoisting object in horizontal plane position, and hoist mechanism, sling transverse moving mechanism and hoist wire rope constitute wire rope winding system, one end of hoist wire rope is connected with hoist mechanism, then hoist wire rope connects sling transverse moving mechanism, rotary hanger in proper order, and its other end is connected with the sling fixed seat on trolley frame, in wire rope winding system, hoist mechanism is used for retracting or extending hoist wire rope, drives rotary hanger connected with hoist wire rope and moves, thereby realizes the adjustment of hoisting object lifting height, and, for realizing the lateral movement of hoisting object, sling transverse moving mechanism is installed on trolley frame, sling transverse moving mechanism can move laterally relative to trolley frame, drives hoist wire rope and swing movement, thereby can realize the adjustment of hoisting object lateral attitude. BRIEF DESCRIPTION OF DRAWINGS

[0057] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description, obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0058] Figure 1 The front view of the bridge crane for bridge construction provided by the embodiment of the present application is provided.

[0059] Figure 2 The side view of the bridge crane for bridge construction provided by the embodiment of the present application is provided.

[0060] Figure 3 The front view of the support gantry provided by the embodiment of the present application is provided.

[0061] Figure 4 The side view of the support gantry provided by the embodiment of the present application is provided.

[0062] Figure 5 The structure schematic view of the hoist trolley provided by the embodiment of the present application is provided.

[0063] Figure 6 The top view of the hoist trolley provided by the embodiment of the present application is provided.

[0064] Figure 7 The structure schematic view of the spreader transverse moving mechanism provided by the embodiment of the present application is provided.

[0065] Figure 8 The structure schematic view of the rotary hanger provided by the embodiment of the present application is provided.

[0066] Figure 9 The front view of the bridge crane for bridge construction provided by the embodiment of the present application when the concrete section is constructed is provided.

[0067] Figure 10 The side view of the bridge crane for bridge construction provided by the embodiment of the present application when the concrete section is constructed is provided.

[0068] Figure 11 The front view of the bridge crane for bridge construction provided by the embodiment of the present application when the steel-concrete section and the steel structure section are constructed is provided.

[0069] Figure 12 The side view of the bridge crane for bridge construction provided by the embodiment of the present application when the steel-concrete section and the steel structure section are constructed is provided. DETAILED DESCRIPTION

[0070] In order for those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0071] It should be noted that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or indirectly disposed on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0072] It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "first", "second", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0073] In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" and "several" is two or more, unless otherwise explicitly specified.

[0074] It should be understood that the structures, proportions, sizes, etc. shown in the drawings of the present application are only used to cooperate with the content disclosed in the specification, to enable those skilled in the art to understand and read, and do not define the limiting conditions for the implementation of the present application, and therefore do not have technical substantive significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effects that can be produced by the present application and the purposes that can be achieved, should still fall within the scope of the technical content disclosed by the present application.

[0075] As Figures 1 to 12The utility model discloses a bridge deck crane for bridge construction, which aims to solve the problem that the conventional bridge deck crane is applicable to single construction conditions and cannot realize accurate positioning and installation of an object when hoisting the object.

[0076] The utility model provides a bridge deck crane for bridge construction, which aims to solve the problem that the conventional bridge deck crane is applicable to single construction conditions and cannot realize accurate positioning and installation of an object when hoisting the object, and specifically comprises the following parts: a walking track 1; a moving base 2 arranged on the walking track 1; a support gantry 3 arranged on the moving base 2; a connecting device 4 arranged on the support gantry 3; a suspension mechanism 5 movably connected to the connecting device 4 and arranged on the connecting device 4; an installation template 6 arranged on the suspension mechanism 5; a top rack 7 arranged on the upper end of the support gantry 3; a trolley running mechanism 8 arranged on the top rack 7; a trolley frame 9 connected to the trolley running mechanism 8; a hoisting mechanism 10 arranged at the four corners of the top surface of the trolley frame 9; a spreader traverse mechanism 11 arranged on the trolley frame 9; a hoisting wire rope 12 connected to the spreader traverse mechanism 11 and arranged on the hoisting mechanism 10; and a rotary hanger 13 arranged below the trolley frame 9 and connected to the hoisting wire rope 12. The technical solution provided by the utility model can be compatible with multiple use scenarios and working conditions, can quickly and accurately hoist and adjust the height and posture of a beam piece to meet installation requirements, and improves construction efficiency.

[0077] The technical solution of the utility model will be specifically described in combination with the embodiments as follows:

[0078] Specifically, in the embodiments of the utility model, the moving base 2 comprises two base main longitudinal beams 201 arranged in parallel with each other; a base cross beam 202 arranged between the base main longitudinal beams 201; an anchoring mechanism 203 arranged at one end of the base main longitudinal beams 201 and detachably connected to a construction bridge; and a longitudinal movement mechanism 204 connected to the walking track 1 and arranged below the base main longitudinal beams 201.

[0079] As Figure 1 , 3As shown in the embodiment of the utility model, longitudinal direction is the running direction of bridge crane, transverse direction is the direction perpendicular to the running direction of bridge crane, the mobile base 2 is installed on the walking track 1, can move back on the walking track 1, thereby drive the whole bridge crane to move longitudinally along the walking track 1 direction, for the mobile base 2, its main body structure is composed of the base main longitudinal beam 201, base crossbeam 202, anchoring mechanism 203 and the longitudinal moving mechanism 204, the base main longitudinal beam 201 is provided with two, both parallelly arranged, two base main longitudinal beams 201 are installed on the walking track 1 through the longitudinal moving mechanism 204, the longitudinal moving mechanism 204 is used to drive the whole mobile base 2 to move, secondly, both ends of two base main longitudinal beams 201 are provided with the anchoring mechanism 203 for detachably connecting bridge, through the anchoring mechanism 203, the position of the whole bridge crane can be fixed, and the base crossbeam 202 is arranged between the base main longitudinal beam 201, two base main longitudinal beams 201 are connected into a whole through the base crossbeam 202, and the structural strength of the mobile base 2 is enhanced.

[0080] Specifically, in the embodiment of the utility model, the support door frame 3 includes: a plurality of legs 301 connected to the mobile base 2 at one end and connected to the top rack 7 at the other end; a cross brace 302 provided on the legs 301 in the same longitudinal plane; a first inclined brace 303 provided between the legs 301 in the same longitudinal plane; a second inclined brace 304 connected to the leg 301 at one end and connected to the cross brace 302 at the other end; a third inclined brace 305 provided at one end of the cross brace 302 and connected to the mobile base 2; a vertical brace 306 provided at the other end of the cross brace 302 and connected to the top rack 7; and a fourth inclined brace 307 connected to the leg 301 at one end and connected to the vertical brace 306 at the other end.

[0081] As Figure 3 , 4As shown, the support portal 3 is fixed on the mobile base 2 and can move along with the mobile base 2; in the embodiment of the utility model, the main structure of the support portal 3 is composed of the support leg 301, the cross brace 302, the first inclined brace 303, the second inclined brace 304, the third inclined brace 305, the vertical brace 306 and the fourth inclined brace 307, wherein the support leg 301 is provided with four pieces, the support leg 301 is vertically installed on the base main longitudinal beam 201 and is used for supporting the top rack 7, every two pieces of the support leg 301 are installed in the same longitudinal plane and are connected with the same piece of base main longitudinal beam 201; the cross brace 302 is installed on two pieces of the support leg 301 in the same longitudinal plane, one end of the cross brace 302 is installed with the vertical brace 306, one end of the vertical brace 306 is connected with the cross brace 302 and the other end is connected with the top rack 7, which is used for supporting the top rack 7 and strengthening the bearing capacity of the right end of the top rack 7; and in the support portal 3, the first inclined brace 303, the second inclined brace 304, the third inclined brace 305 and the fourth inclined brace 307 are also arranged, various inclined braces are used to connect each part of the support portal 3 into a whole, the transverse structural strength of the portal is strengthened, and the structural layout of the support portal 3 is more reasonable.

[0082] Specifically, in the embodiment of the utility model, the spreader transverse moving mechanism 11 comprises: a guide slide rail 17 arranged on the trolley frame 9; the installation direction of the guide slide rail 17 is perpendicular to the walking direction of the trolley running mechanism 8; a fixed pulley mechanism 18 arranged on the guide slide rail 17; a push rod fixing seat 19 arranged on the trolley frame 9; a hydraulic push rod 20 arranged on the push rod fixing seat 19 and connected with the fixed pulley mechanism 18.

[0083] Specifically, in the embodiment of the utility model, the winch mechanism 10 and the spreader transverse moving mechanism 11 are provided with four pieces; one piece of the winch mechanism 10, the spreader transverse moving mechanism 11 and the winch steel wire rope 12 form a set of steel wire rope winding system.

[0084] As Figure 5 , 6As shown, in the embodiment of the utility model, trolley running mechanism 8, trolley frame 9, hoist mechanism 10, sling transverse mechanism 11, hoist wire rope 12 and rotary hanger 13 combination form the lifting trolley of deck crane, the lifting trolley is used for the hoisting operation of beam piece, steel structure, wherein, trolley running mechanism 8 is installed on the top frame 7 in cross, is used for the trolley frame 9 is accepted, and drive whole lifting trolley moves on top frame 7, hoist mechanism 10, sling transverse mechanism 11 and hoist wire rope 12 form wire rope winding system, wherein, sling transverse mechanism 11 is by the guide slide rail 17, fixed pulley mechanism 18, push rod fixed seat 19 and the hydraulic push rod 20 are formed, fixed pulley mechanism 18 is movably connected with trolley frame 9 through guide slide rail 17, utilizes the lateral movement of hydraulic push rod 20 to push fixed pulley mechanism 18 on guide slide rail 17, can realize the lateral displacement of lifting trolley when steel box girder is hoisted.

[0085] Specifically, in the embodiment of the utility model, when carrying out steel concrete section construction, the deck crane hoists the steel structure to the designated position through the lifting trolley arranged above the top frame 7 and then carries out the operation, and the operator adjusts the lateral displacement of the rotary hanger 13 by controlling the extension and retraction of the hydraulic push rod 20 in the sling transverse mechanism 11, and controls the position of the rotary hanger 13 in the longitudinal direction by the trolley running mechanism 8, so that the operator can quickly adjust the position of the rotary hanger 13 to control the hoisting position of the beam piece.

[0086] Specifically, in the embodiment of the utility model, the wire rope winding system is provided with four sets, and the lifting of the steel box girder and the height adjustment in front and back and left and right directions during alignment are realized by controlling the four sets of wire rope winding systems, first, the height adjustment of the beam piece in the front and back directions is realized by controlling the different rope speed of the two sets of wire rope winding systems in the front longitudinal plane and the two sets of wire rope winding systems in the rear longitudinal plane during hoisting, second, the height adjustment of the beam piece in the left and right directions is realized by controlling the different rope speed of the two sets of wire rope winding systems in the left transverse plane and the two sets of wire rope winding systems in the right transverse plane.

[0087] Specifically, in the embodiment of the utility model, the fixed pulley mechanism 18 comprises: a sliding block 21 arranged on the guide slide rail 17; a support mounting seat 22 symmetrically arranged on the sliding block 21; an installation shaft 23 arranged between the support mounting seats 22; a fixed pulley set 24 sleeved on the support mounting seat 22 and connected with the hoist wire rope 12.

[0088] As Figure 7As shown in this embodiment of the present invention, the main structure of the fixed pulley mechanism 18 consists of the slider 21, the support mounting base 22, the mounting shaft 23, and the fixed pulley assembly 24. The slider 21 is movably connected to the guide rail 17. The support mounting base 22 is mounted on the slider 21. The mounting shaft 23 is provided on the support mounting base 22. The fixed pulley assembly 24 is sleeved on the mounting shaft 23. The hoisting wire rope 12 is wound around the fixed pulley assembly 24. Using the fixed pulley mechanism 18, the hoisting wire rope 12 wound around the fixed pulley assembly 24 can move laterally.

[0089] Specifically, in an embodiment of this utility model, the slewing frame 13 includes: a balance beam 25; a movable pulley group 26 disposed on the top surface of the balance beam 25 and connected to the hoisting wire rope 12; a slewing motor 27 disposed on the balance beam 25; a slewing reducer 28 connected to the slewing motor 27; a hoisting bracket 29 disposed below the balance beam 25; a slewing bearing assembly 30 disposed on the hoisting bracket 29; a slewing gear 31 disposed at the output end of the slewing reducer 28 and connected to the slewing bearing assembly 30; and a lifting lug 32 disposed on the bottom surface of the hoisting bracket 29.

[0090] like Figure 8 As shown in this embodiment of the invention, the slewing frame 13 is used to lift beam segments and adjust the slewing position of the beam segments on the horizontal plane. The main structure of the slewing frame 13 consists of a balance beam 25, a movable pulley block 26, a slewing motor 27, a slewing reducer 28, a lifting bracket 29, a slewing support assembly 30, a slewing gear 31, and lifting lugs 32. The movable pulley blocks 26 are installed at the four corners of the top surface of the balance beam 25, and four sets of wire rope winding systems are connected one-to-one with the four movable pulley blocks 26. The balance beam 25 and the lifting bracket 29 are arranged parallel vertically. The slewing motor 27 and the slewing reducer 28... 8. The slewing gear 31 and the slewing bearing assembly 30 are combined to form a slewing mechanism. The slewing mechanism connects the balance beam 25 and the lifting bracket 29 and can drive the lifting bracket 29 to perform slewing motion. The lifting lug 32 is provided on the bottom surface of the lifting bracket 29. The lifting beam is connected through the lifting lug 32 to perform lifting operations on the beam. When lifting the beam, the lifting lug 32 is first aligned with the corresponding lug on the beam to be lifted by the lifting tool, and then fixed by the pin. Then, the wire rope winding system is controlled to make the beam rise. During the rising process, the beam can be rotated by a certain angle by controlling the slewing mechanism.

[0091] Specifically, in the embodiment of the utility model, the top frame 7 includes: a first main beam 701 arranged on the support leg 301; a second main beam 702 arranged on the support leg 301 and parallel to the first main beam 701; a transverse end beam 703 arranged between the first main beam 701 and the second main beam 702; a trolley limiting mechanism 704 arranged at both ends of the first main beam 701 and the second main beam 702; and a trolley track arranged on the top surface of the first main beam 701 and the second main beam 702 and connected with the trolley running mechanism 8.

[0092] In the embodiment of the utility model, the top frame 7 is installed at the top end of the support gantry 3, and the top frame 7 is used for installing a hoisting trolley; the main structure of the top frame 7 is composed of the first main beam 701, the second main beam 702, the transverse end beam 703, the trolley limiting mechanism 704 and the trolley track, wherein the first main beam 701 and the second main beam 702 are arranged in parallel on the support leg 301 in the front and rear two longitudinal planes, the transverse end beam 703 is arranged between the first main beam 701 and the second main beam 702 to strengthen the structural strength of the top frame 7, and the transverse end beam 703 is connected with the first main beam 701 and the second main beam 702 at both ends; the trolley track is arranged on the top surface of the first main beam 701 and the second main beam 702, and the trolley track is a moving track of the hoisting trolley on the top frame 7.

[0093] Specifically, in the embodiment of the utility model, the two parallel arranged base main longitudinal beams 201 and the four vertical support legs 301 and the first main beam 701 and the second main beam 702 are used to form the main frame of the bridge crane, the transverse end beam 703 and the base cross beam 202 are arranged between the first main beam 701 and the second main beam 702 and the front end of the base main longitudinal beam 201, the components in the front and rear two longitudinal planes of the main frame are connected as a whole, the diagonal bracing rod for connecting the base main longitudinal beam 201 and the support leg 301, the horizontal bracing rod 302 for connecting the support leg 301 and the vertical bracing rod 306 for strengthening the front end bearing capacity of the first main beam 701 and the second main beam 702 are added in the main frame, so as to increase the vertical stability of the main frame structure; the main frame structure can make the beam carrying vehicle carry the beam piece from the middle, reach the beam taking position of the hoisting trolley, and then facilitate the hoisting trolley to use the lifting appliance to carry out the beam piece hoisting operation.

[0094] Specifically, in the embodiment of the utility model, the suspension mechanism 5 includes: a lifting rod and a lifting belt which are detachably connected with the connecting device 4; and the mounting template 6 includes: a bottom die, a side die and an inner die.

[0095] As Figure 1 , 2As shown in the utility model embodiment, the connecting device 4, the suspension mechanism 5 and the installation template 6 are combined to form a concrete construction auxiliary device; the concrete construction auxiliary device can be used for bridge construction concrete section construction operation on the bridge deck crane, at this time the hoist trolley is in the empty load state, and is located behind the bridge deck lifting appliance; in the specific construction, the concrete construction auxiliary device is installed and fixed to the installation template 6 through the connecting device 4 fixed on the portal structure and the detachable suspension mechanism 5, and after installation is completed, the concrete construction auxiliary device can be directly used for construction operation; when steel concrete section construction is needed, after the suspension system and the template system in the concrete construction auxiliary device are removed, the steel structure part is hoisted to the predetermined position through the hoist trolley, and then concrete is poured; when the steel structure section is constructed, the steel structure beam can be hoisted and constructed directly by using the hoist trolley, and other hoisting methods need not be additionally used, so that the construction efficiency is improved.

[0096] Specifically, in the embodiment of the utility model, the bridge deck crane for bridge construction further includes: a lifting appliance fixing seat 14 arranged on the trolley frame 9; the winch steel wire rope 12 is connected to the winch mechanism 10 at one end and connected to the lifting appliance fixing seat 14 at the other end; a ladder climbing mechanism 15 arranged on one side of the support portal 3; a safety guard 16 arranged on the outer side edge of the top rack 7.

[0097] According to the above, the bridge crane is suitable for multiple construction conditions and can accurately adjust the posture of the hoisted object.The utility model discloses a bridge deck crane for bridge construction, its main part structure is by walking track 1, mobile base 2, support portal 3, connecting device 4, suspension mechanism 5, install form plate 6, top rack 7, trolley operation mechanism 8, trolley frame 9, hoist mechanism 10, sling transverse moving mechanism 11, hoist steel wire rope 12 and rotary hanger 13 are constituteed, wherein, walking track 1 is installed on the construction bridge deck, mobile base 2 is set up above walking track 1, mobile base 2 is movably connected with walking track 1, and the combination forms the mobile frame, can drive the whole bridge deck crane to move back and forth on walking track 1, for support portal 3, it is fixedly connected with mobile base 2, moves along with mobile base 2, and support portal 3 is used for supporting top rack 7 and the spare parts of installing on the top support, and, install concrete construction auxiliary device on support portal 3, can carry out the construction operation of bridge concrete section on bridge deck crane by using construction auxiliary device, set up top rack 7 on support portal 3 top, and trolley operation mechanism 8, trolley frame 9, hoist mechanism 10, sling transverse moving mechanism 11, hoist steel wire rope 12 and rotary hanger 13 constitute the hoist trolley installation on top rack 7, by using hoist trolley, when carrying out steel concrete section construction, it can hoist steel structure and transport to the designated position and then work, realizes the construction operation of bridge steel concrete section, and in hoist trolley, trolley frame 9 is installed on top rack 7 through trolley operation mechanism 8, trolley operation mechanism 8 is used for driving the whole hoist trolley to move back and forth on top rack 7, rotary hanger 13 can be connected hoisting object, also can carry out back loading movement, realizes the adjustment of hoisting object in horizontal plane position, and hoist mechanism 10, sling transverse moving mechanism 11 and hoist steel wire rope 12 constitute the steel wire rope winding system, one end of hoist steel wire rope 12 is connected with hoist mechanism 10, then it is connected with sling transverse moving mechanism 11, rotary hanger 13 in proper order, and the other end of hoist steel wire rope 12 is connected with sling fixed seat 14, in steel wire rope winding system, hoist mechanism 10 is used for retracting or extending hoist steel wire rope 12, drives rotary hanger 13 connected with hoist steel wire rope 12 and moves, thereby realizes the adjustment of hoisting object lifting height, and, for realizing the lateral movement of hoisting object, sling transverse moving mechanism 11 is installed on trolley frame 9, sling transverse moving mechanism 11 is movably connected with trolley frame 9 through guide slide rail 17, and by using hydraulic push rod 20, sling transverse moving mechanism 11 can be moved on guide slide rail 17, thereby drives hoist steel wire rope 12 and moves swing, realizes the adjustment of hoisting object lateral attitude, and four sets of steel wire rope winding systems are set up on trolley frame 9, and four sets of steel wire rope winding systems can be relatively independently operated, can satisfy the adjustment of hoisting object multiple attitudes.Compared with the prior art, the technical scheme provided by the utility model can be compatible with multiple use scenes and working conditions, can quickly and accurately lift and adjust the height and posture of the beam piece to adapt to installation requirements, and improves construction efficiency.

[0098] The above description of disclosed embodiments enables one of ordinary skill in the art to make or use the utility model. Various modifications to these embodiments will be apparent to those of ordinary skill in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the utility model is not to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A bridge deck crane for bridge construction, characterized in that, include: Walking track; A movable base is set on the walking track; The support gantry is mounted on the movable base; A connecting device is provided on the supporting gantry; A suspension mechanism that is movably connected to the connecting device and mounted on the connecting device; Installation template set on the suspension mechanism; The top frame is installed at the upper end of the supporting gantry; The trolley running mechanism is mounted on the top frame; The trolley frame connected to the trolley running mechanism; Winching mechanisms are installed at the four corners of the top surface of the trolley frame; The lateral movement mechanism of the lifting device is installed on the trolley frame; The winch wire rope is installed on the winch mechanism and connected to the lateral movement mechanism of the lifting device; The rotary hoist is located below the trolley frame and connected to the winch wire rope.

2. The bridge deck crane for bridge construction according to claim 1, characterized in that, The supporting gantry includes: One end is connected to the movable base, and the other end is connected to several legs of the top frame; The cross bracing rods on the legs are arranged in the same longitudinal plane; The first diagonal brace is disposed between the legs in the same longitudinal plane; One end is connected to the support leg, and the other end is connected to the second diagonal brace of the cross brace; A third diagonal brace is disposed at one end of the horizontal brace and connected to the movable base; A vertical support rod is installed at the other end of the horizontal support rod and connected to the top frame; One end is connected to the support leg, and the other end is connected to the fourth diagonal brace of the vertical support rod.

3. The bridge deck crane for bridge construction according to claim 2, characterized in that, The top rack includes: The first main beam is mounted on the outrigger; A second main beam is disposed on the support leg and arranged parallel to the first main beam; The transverse end beam is set between the first main beam and the second main beam; Trolley limiting mechanisms are installed at both ends of the first main beam and the second main beam; The trolley track is installed on the top surface of the first and second main beams and connected to the trolley running mechanism.

4. The bridge deck crane for bridge construction according to claim 1, characterized in that, The suspension mechanism includes: a suspension rod and a sling that are detachably connected to the connecting device; The installation template includes: bottom mold, side mold and inner mold.

5. The bridge deck crane for bridge construction according to claim 1, characterized in that, The lateral movement mechanism of the lifting device includes: The guide rail is set on the trolley frame; The installation direction of the guide rail is perpendicular to the traveling direction of the trolley running mechanism; A fixed pulley mechanism is provided on the guide rail; A push rod fixing seat is provided on the trolley frame; A hydraulic push rod is mounted on the push rod fixing seat and connected to the fixed pulley mechanism.

6. The bridge deck crane for bridge construction according to claim 5, characterized in that, The fixed pulley mechanism includes: A slider is disposed on the guide rail; Support mounting bases symmetrically arranged on the slider; The mounting shaft is disposed between the support mounting bases; A fixed pulley assembly fitted onto the support mounting base and connected to the winch wire rope.

7. The bridge deck crane for bridge construction according to claim 6, characterized in that, Both the hoisting mechanism and the lateral movement mechanism of the lifting device are provided with four components; The hoisting mechanism, the lateral movement mechanism of the lifting device, and the hoisting wire rope together form a wire rope winding system.

8. The bridge deck crane for bridge construction according to claim 1, characterized in that, The slewing hanger includes: Balance beam; A movable pulley block is installed on the top surface of the balance beam and connected to the hoisting wire rope; A rotary motor is mounted on the balance beam; A rotary reducer connected to the rotary motor; The hoisting support is located below the balance beam; The slewing bearing assembly is mounted on the hoisting bracket; A rotary gear disposed at the output end of the rotary reducer and connected to the rotary bearing assembly; Lifting lugs are installed on the bottom surface of the lifting support.

9. The bridge deck crane for bridge construction according to claim 1, characterized in that, The mobile base includes: Two parallel main longitudinal beams at the base; The base crossbeam is disposed between the main longitudinal beams of the base; An anchoring mechanism that is detachably connected to the construction bridge deck and is located at one end of the main longitudinal beam of the base. The longitudinal movement mechanism is located below the main longitudinal beam of the base and connected to the traveling track.

10. The bridge deck crane for bridge construction according to claim 1, characterized in that, The bridge deck crane used for bridge construction also includes: A lifting device mounting bracket is provided on the trolley frame; One end of the winch wire rope is connected to the winch mechanism, and the other end is connected to the lifting device fixing base; A ladder mechanism is installed on one side of the supporting gantry; Safety railings are installed on the outer edge of the top frame.

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