CN113697680B - Crane and beam changing machine - Google Patents

Crane and beam changing machine Download PDF

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Publication number
CN113697680B
CN113697680B CN202110888343.6A CN202110888343A CN113697680B CN 113697680 B CN113697680 B CN 113697680B CN 202110888343 A CN202110888343 A CN 202110888343A CN 113697680 B CN113697680 B CN 113697680B
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CN
China
Prior art keywords
girder
frame
driving mechanism
crane
movement driving
Prior art date
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Active
Application number
CN202110888343.6A
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Chinese (zh)
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CN113697680A (en
Inventor
杨建福
谌启发
孙世豪
万鹏
周光忠
常祝
王浩
纪博林
周衍领
姚坤锋
姜敏
李刚
胡莲
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Railway Fifth Survey and Design Institute Group Co Ltd
China Railway Construction Corp Ltd CRCC
Original Assignee
China Railway Fifth Survey and Design Institute Group Co Ltd
China Railway Construction Corp Ltd CRCC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China Railway Fifth Survey and Design Institute Group Co Ltd, China Railway Construction Corp Ltd CRCC filed Critical China Railway Fifth Survey and Design Institute Group Co Ltd
Priority to CN202110888343.6A priority Critical patent/CN113697680B/en
Publication of CN113697680A publication Critical patent/CN113697680A/en
Application granted granted Critical
Publication of CN113697680B publication Critical patent/CN113697680B/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C17/00—Overhead travelling cranes comprising one or more substantially horizontal girders the ends of which are directly supported by wheels or rollers running on tracks carried by spaced supports
    • B66C17/04—Overhead travelling cranes comprising one or more substantially horizontal girders the ends of which are directly supported by wheels or rollers running on tracks carried by spaced supports with lifting beams, e.g. slewable beams, carrying load-engaging elements, e.g. magnets, hooks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C11/00—Trolleys or crabs, e.g. operating above runways
    • B66C11/02—Trolleys or crabs, e.g. operating above runways with operating gear or operator's cabin suspended, or laterally offset, from runway or track
    • B66C11/04—Underhung trolleys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C11/00—Trolleys or crabs, e.g. operating above runways
    • B66C11/16—Rope, cable, or chain drives for trolleys; Combinations of such drives with hoisting gear
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C6/00—Girders, or track-supporting structures, specially adapted for cranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C7/00—Runways, tracks or trackways for trolleys or cranes
    • B66C7/08—Constructional features of runway rails or rail mountings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C7/00—Runways, tracks or trackways for trolleys or cranes
    • B66C7/16—Devices specially adapted for limiting trolley or crane travel; Arrangements of buffer-stops
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C9/00—Travelling gear incorporated in or fitted to trolleys or cranes
    • B66C9/08—Runners; Runner bearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C9/00—Travelling gear incorporated in or fitted to trolleys or cranes
    • B66C9/14—Trolley or crane travel drives

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)

Abstract

The disclosure relates to the technical field of railway beam replacement, in particular to a crane and a beam replacement machine. The crane comprises a frame, a hoisting device, a longitudinal movement driving mechanism and a transverse movement driving mechanism, wherein the frame, the hoisting device, the longitudinal movement driving mechanism and the transverse movement driving mechanism are arranged below a girder of the girder changing machine; the lifting device transversely walks relative to the frame, and the lifting device, the longitudinal movement driving mechanism and the transverse movement driving mechanism are all arranged on the frame; the longitudinal movement driving mechanism comprises a walking part matched with the side edge and/or the bottom edge of the girder changing machine and a driving assembly for driving the walking part to move. In the crane provided by the disclosure, through setting up with the side complex of beam change machine girder indulge and move actuating mechanism, effectively avoid the hoist to occupy the altitude space of beam change machine girder top, do not need the altitude requirement that the height of sacrificial support leg satisfies the railway boundary, be convenient for accomplish simply supported case roof beam and trade the operation of transporting the frame.

Description

Crane and beam changing machine
Technical Field
The disclosure relates to the technical field of railway beam replacement, in particular to a crane and a beam replacement machine.
Background
The number of existing railway simply supported box girders in China is huge, and along with the passage of railway operation time, the aging phenomenon of bridges is common, so that the service life of the railway simply supported box girders can be possibly prolonged. In addition, the influence of natural environment is affected, and concrete cracking, peeling and other diseases of different degrees occur on the railway simply supported box girder in early construction years, so that the strength or rigidity of the railway simply supported box girder cannot meet the transportation requirement, and the safe operation of a business line cannot be ensured. Meanwhile, due to railway energy expansion and electrification transformation, some railways which do not meet the safety operation requirements also need to be transformed. Therefore, the existing railway simply supported box girder transfer frame technology is inevitably applied when railway transformation is carried out.
The beam changing machine is commonly adopted in the railway simply supported box beam changing frame technology, so that the railway simply supported box beam changing frame is carried out. The girder replacing machine comprises supporting legs, wherein a main girder is arranged on the supporting legs, and a crane for hanging a railway simply supported box girder is arranged on the main girder. The railway has railway limit requirements, and the railway limit refers to an outline dimension line which is not surmountable by a line between a building, equipment and rolling stock and is established for ensuring transportation safety. When the simply supported box girder is used for transferring the frame, the whole girder transferring machine cannot exceed the height requirement of railway limit, the heights of the supporting legs are sacrificed by some girder transferring machines in the prior art to meet the height requirement of railway limit, but the heights of the supporting legs are too low, the height range reserved for adjusting the hanging girder plates is also reduced, and the simply supported box girder transferring frame is not beneficial; and the height of the sacrificial leg is further optimized for the leg structure, which will also increase the cost.
Disclosure of Invention
The purpose of the present disclosure is to provide a crane and beam changing machine, avoid the crane to occupy the altitude space above the girder of the beam changing machine, meet the altitude requirement of railway limit without sacrificing the height of the supporting leg, and facilitate the completion of the operation of the simply supported box girder changing rack.
In order to achieve the above purpose, the present disclosure provides a crane, including a frame, a lifting device, a longitudinal movement driving mechanism and a lateral movement driving mechanism, wherein the frame is arranged below a girder of a girder changer, the longitudinal movement driving mechanism is used for driving the frame to travel longitudinally relative to the girder of the girder changer, the lateral movement driving mechanism is used for driving the lifting device to travel transversely relative to the frame, and the lifting device, the longitudinal movement driving mechanism and the lateral movement driving mechanism are all arranged on the frame;
the longitudinal movement driving mechanism comprises a walking part matched with the side edge and/or the bottom edge of the girder changing machine and a driving assembly used for driving the walking part to move, and the driving assembly comprises a driving motor used for being matched with a gear part of the girder changing machine and driving the gear part to move.
Optionally, the walking part comprises a walking wheel outer shell, walking wheels are arranged at two ends of the walking wheel outer shell, and a balance pin shaft is arranged in the middle of the walking wheel outer shell.
Optionally, the walking part further comprises an inverted U-shaped hanging part, one side wall of the hanging part is connected with the frame, and the other side wall of the hanging part is connected with the balance pin shaft.
Optionally, the hoisting device comprises a hoisting support, a hoist and a fixed pulley block, wherein the hoisting support is in transverse sliding connection with the frame, the transverse moving driving mechanism is connected with the hoisting support, and the hoist and the fixed pulley block are longitudinally arranged on the hoisting support.
Optionally, a reversing wheel is arranged on the lifting support, the fixed pulley block is arranged between the winch and the reversing wheel, and a lifting rope of the winch is connected with the fixed pulley block through the reversing wheel.
Optionally, the hoisting device further comprises a movable pulley block, the movable pulley block is arranged below the fixed pulley block, and a hanging beam bracket is arranged on the movable pulley block.
Optionally, the lateral movement driving mechanism includes a telescopic cylinder, and the telescopic cylinder is connected between the frame and the lifting device.
Optionally, a buffer is disposed on the frame.
The disclosure also provides a beam changing machine comprising the crane.
Optionally, the girder replacement device comprises a girder replacement device main girder, wherein a longitudinal moving track is arranged on the side edge of the girder replacement device main girder, and a travelling part of the crane is matched with the longitudinal moving track.
Optionally, a rack plate for matching with a gear component of the crane is arranged on the side edge and/or the bottom edge of the girder replacing machine.
In the crane provided by the embodiment of the disclosure, the traditional square crane structure is avoided, the frame arranged below the girder of the girder changing machine is directly adopted as the main frame structure of the crane, the lifting device, the longitudinal movement driving mechanism and the transverse movement driving mechanism are arranged on the frame, the crane is prevented from occupying the height space above the girder of the girder changing machine, the height requirement of railway limit is met without sacrificing the height of the supporting leg, and a sufficient height range is reserved for adjusting the hanging girder piece; and the longitudinal movement driving mechanism and the transverse movement driving mechanism are used for realizing the position adjustment when the simple box girder is replaced and erected, so that the simple box girder replacement and transportation frame operation can be conveniently and efficiently completed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure.
In order to more clearly illustrate the embodiments of the present disclosure or the solutions in the prior art, the drawings that are required for the description of the embodiments or the prior art will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.
Fig. 1 is a schematic diagram of a crane and a girder of a girder changer according to an embodiment of the disclosure;
fig. 2 is a schematic perspective view of a crane according to an embodiment of the disclosure;
fig. 3 is a schematic perspective view of a crane according to an embodiment of the disclosure, and a frame is not shown;
fig. 4 is a schematic diagram of a crane frame provided in an embodiment of the disclosure;
fig. 5 is a schematic diagram of a movable pulley block of a crane according to an embodiment of the disclosure.
Wherein, 1, the frame; 11. a cross beam; 12. a longitudinal beam; 2. a walking unit; 21. a road wheel housing; 22. a walking wheel; 23. a balance pin shaft; 24. a hanging part; 3. a driving motor; 31. a gear member; 4. a lifting support; 5. a hoist; 6. a fixed pulley block; 7. a movable pulley block; 71. a hanging beam bracket; 72. a connecting beam; 8. a telescopic oil cylinder; 9. a buffer; 10. a girder of a girder replacing machine; 101. longitudinally moving the track; 102. rack plate.
Detailed Description
In order that the above objects, features and advantages of the present disclosure may be more clearly understood, a further description of aspects of the present disclosure will be provided below. It should be noted that, without conflict, the embodiments of the present disclosure and features in the embodiments may be combined with each other.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced otherwise than as described herein; it will be apparent that the embodiments in the specification are only some, but not all, embodiments of the disclosure.
The disclosed embodiments provide a beam changing machine comprising a beam changing machine main beam 10 and a crane, wherein,
the crane comprises a frame 1, a hoisting device, a longitudinal movement driving mechanism and a transverse movement driving mechanism, wherein the frame 1 is arranged below a girder 10 of the girder changing machine, the frame 1 does not occupy the space above the girder 10 of the girder changing machine, the hoisting device, the longitudinal movement driving mechanism and the transverse movement driving mechanism are arranged on the frame 1, and the hoisting device, the longitudinal movement driving mechanism and the transverse movement driving mechanism are arranged on the frame 1 and do not exceed the girder 10 of the girder changing machine, so that the overall height of the girder changing machine can be reduced to the greatest extent;
the longitudinal movement driving mechanism comprises a walking part 2 and a driving component for driving the walking part 2 to move, the walking part 2 is always in contact connection with the girder 10 of the girder changing machine, the walking part 2 is matched with the side edge and/or the bottom edge of the girder 10 of the girder changing machine in the longitudinal direction, the lifting device is used for hanging a simple box girder, the longitudinal movement driving mechanism is used for driving the frame 1 to longitudinally travel relative to the girder 10 of the girder changing machine so as to carry out girder transportation, and the transverse movement driving mechanism is used for driving the lifting device to transversely travel relative to the frame 1 so as to carry out position adjustment during girder changing and girder setting.
Compared with the prior art, the crane structure is not in a traditional square shape, but is directly in a main frame structure of a crane, wherein the frame 1 is arranged below the girder 10 of the girder changing machine, the lifting device, the longitudinal movement driving mechanism and the transverse movement driving mechanism are arranged on the frame 1, so that the crane is prevented from occupying the height space above the girder 10 of the girder changing machine, the height requirement of railway limit is met without sacrificing the height of the supporting legs, and a sufficient height range is reserved for adjusting the hanging girder piece; and the longitudinal movement driving mechanism and the transverse movement driving mechanism are used for realizing the position adjustment when the simple box girder is replaced and erected, so that the simple box girder replacement and transportation frame operation can be conveniently and efficiently completed.
The crane is divided into a front crane and a rear crane when in use, wherein the front crane wire rope adopts an independent winding mode, the rear crane wire rope adopts an equilibrium winding mode, and the front crane wire rope and the rear crane wire rope form four-point hoisting and three-point balancing together.
The driving assembly comprises a driving motor 3 for matching with the gear of the girder 10 of the girder replacing machine and driving the gear 31 to move.
In the above technical scheme, the mode of walking by adopting the driving motor for driving the walking wheels is avoided, the gear part 31 is utilized to be matched with the gear of the girder replacing machine girder 10, the accurate and stable driving rack 1 walks relative to the girder replacing machine girder 10, the gear part 31 is matched with the gear of the girder replacing machine girder 10 to avoid the left and right displacement caused by unstable walking of the crane, and the unstable shaking condition of the simply supported box girder during the operation of the girder replacing and transporting frame is avoided.
In some embodiments, the side of the girder 10 of the girder replacing machine is provided with a longitudinal moving track 101, specifically, two side edges of the girder 10 of the girder replacing machine are provided with flanges, thus forming the longitudinal moving track 101 on two sides, two ends of the frame 1 extend opposite to two sides of the girder 10 of the girder replacing machine, the walking part 2 extends upwards from the frame 1, and the walking part 2 is matched with the longitudinal moving track 101.
In the above technical scheme, the traveling part 2 is matched with the longitudinally moving tracks 101 on two sides of the girder 10 of the girder changing machine, so that the machine frame 1 can travel along the longitudinal direction of the girder 10 of the girder changing machine, and meanwhile, the lifting device, the longitudinally moving driving mechanism and the transversely moving driving mechanism are arranged on the machine frame 1, so that the existing height occupied by the girder 10 of the girder changing machine is reasonably utilized, the heights above and below the girder 10 of the girder changing machine are not occupied, enough height space is reserved for the lifting device and the underlying simply supported box girder, and the hanging girder piece is convenient to adjust.
In some embodiments, the walking part 2 includes a walking wheel housing 21, the walking wheel housing 21 is disposed along a longitudinal direction, walking wheels 22 are disposed at both ends of the walking wheel housing 21 in the longitudinal direction, a balance pin 23 is disposed at a middle part of the walking wheel housing 21, and the walking wheel housing 21 can rotate by providing the balance pin 23.
In the above-described technical solution, the running part 2 is not limited to only arranging one set of the running wheel housing 21 and the running wheel 22, but a plurality of sets of the running wheel housing 21 and the running wheel 22 may be arranged in the longitudinal direction. When the longitudinal moving rail 101 is inclined or uneven, the traveling wheel housing 21 can swing relative to the balance pin 23, so that the traveling wheels 22 at the front end and the rear end are balanced, the equal wheel pressures at the two ends are ensured, and the crane is ensured to run stably.
In some embodiments, the walking part 2 further includes an inverted U-shaped hanging part 24, where the hanging part 24 includes two side walls, including a long side wall and a short side wall, and the long side wall of the hanging part 24 extends downward to be connected with the frame 1, and the short side wall of the hanging part 24 is connected with the balance pin 23.
In the above technical solution, the middle of the travelling wheel housing 21 is opened with an opening, the short side wall of the hanging portion 24 is inserted into the opening, and the balance pin 23 passes through the mounting hole to connect with the travelling wheel housing 21 and the short side wall of the hanging portion 24. The structure realizes the quick connection of the frame 1 and the travelling part 2, so that the whole crane is in an inverse hanging structure and is matched with the longitudinal moving tracks 101 on two sides of the girder 10 of the girder replacing machine.
In some embodiments, the side and/or bottom edge of the girder 10 of the girder replacing machine is provided with rack plates 102, alternatively, both side edges of the girder 10 of the girder replacing machine are provided with rack plates 102, the driving motor 3 is vertically arranged, and the output end of the driving motor 3 is provided with a gear member 31 matched with the rack plates 102.
In the above technical scheme, the mode of walking by driving the walking wheel through the driving motor of the transmission is avoided, the gear part 31 is matched with the rack plate 102, the accurate and stable driving rack 1 walks relative to the girder replacing machine main girder 10, the gear part 31 is meshed with the rack plate 102, the left and right displacement caused by unstable walking of the lifting trolley is avoided, and the unstable shaking condition during the operation of the simply supported box girder replacing rack is avoided.
In some embodiments, the lifting device comprises a lifting support 4, a winch 5 and a fixed pulley block 6, the lifting support 4 is in sliding connection with the frame 1 in the transverse direction, preferably, the lifting support 4 is arranged at two ends of the frame 1, the lifting support 4 is arranged at a part of the frame 1 extending out of the side edge of the girder 10 of the girder replacing machine, the lifting support 4 is provided with a sliding part, a track part matched with the sliding part is arranged on the frame 1, a transverse moving driving mechanism is connected with the lifting support 4, the winch 5 and the fixed pulley block 6 are longitudinally arranged on the lifting support 4, and a lifting rope of the winch 5 extends downwards through the fixed pulley block 6 to be used for hanging a simply supported box girder.
In the prior art, the hoist and the fixed pulley block of the crane are arranged vertically, so that the overall height of the crane is higher, and in the technical scheme of the disclosure, the hoist 5 and the fixed pulley block 6 are arranged longitudinally, so that the space occupied by the upper part is avoided, the space occupied by the transverse direction is also avoided, the overall height of the crane is reduced, and the railway limit requirement is met; the sliding part on the lifting support 4 is matched with the track part on the frame 1, and the transverse moving driving mechanism drives the lifting support 4 to slide transversely relative to the frame 1, so that the position adjustment during beam replacement and beam erection is performed.
In some embodiments, the hoisting support 4 is provided with a reversing wheel 41, the fixed pulley block 6 is arranged between the hoist 5 and the reversing wheel 41, and a hoisting rope of the hoist 5 is connected with the fixed pulley block 6 through the reversing wheel 41.
In the technical scheme, the lifting rope is led out through the winch 5, and if the lifting rope is directly connected with the fixed pulley block 6, the inclination angle of the lifting rope between the winch 5 and the fixed pulley block 6 is too large, so that the service life of the lifting rope is influenced; after the reversing wheel 41 is arranged, the lifting rope is pulled out through the upper end of the reversing wheel 41 and the lower end of the reversing wheel 41, at the moment, the lifting rope and the upper end of the fixed pulley block 6 are in a nearly flush state, at the moment, the inclination angle between the lifting rope and the fixed pulley block 6 is obviously reduced, and the service life of the lifting rope can be prolonged. Specifically, the angle of the lifting rope between the winch 5 and the reversing wheel 41 is not more than 3.5 degrees, and the angle of the lifting rope between the reversing wheel 41 and the fixed pulley block 6 is not more than 5 degrees.
In some embodiments, the lifting device further comprises a movable pulley block 7, specifically, the two sides of the girder 10 of the girder replacing machine are respectively provided with the movable pulley block 7, a connecting beam 72 is connected between the movable pulley blocks 7, the movable pulley block 7 is arranged below the fixed pulley block 6, a hanging beam bracket 71 is arranged on the movable pulley block 7, the hanging beam bracket 71 is integrally U-shaped, and two side ends are respectively connected with the movable pulley blocks 7 on two sides for hanging a simply supported box girder.
In the above technical solution, the frame 1 is formed by two beams 11, two ends of the two beams 11 extend from two sides of the girder 10 of the girder replacing machine, two ends of the two beams 11 are provided with walking parts 2, wherein hanging parts 24 are connected with the beams 11, and longitudinal beams 12 are connected between the two hanging parts 24 corresponding to each other in the longitudinal direction, thus forming a main frame structure of the crane; the lifting support 4 is provided with two, is located at the both ends of crossbeam 1, lifting support 4 sets up along vertical, and fixed pulley group 6 sets up in the middle part of lifting support 4, corresponds the vacancy that is in between two crossbeams 11, and same running pulley group 7 is also in the vacancy between two crossbeams 11, because longeron 12 is connected between hanging portion 24, so dodged the space for running pulley group 7 can hang to between two crossbeams 11, makes the structural arrangement of hoist compacter and even.
In some embodiments, the traversing driving mechanism comprises a telescopic cylinder 8, and the telescopic cylinder 8 is connected between the frame 1 and the lifting device. Of course, the traversing driving mechanism can also adopt a mode of chain transmission, telescopic cylinder or roller driving and other linear displacement driving mechanisms in the prior art, so that the lifting device moves transversely relative to the frame 1.
In the above technical scheme, the side of the frame 1 is provided with the connecting frame, the lifting support 4 is also provided with the connecting frame in an extending manner, and a telescopic oil cylinder is arranged between the two connecting frames, so that the lifting device is driven to move transversely relative to the frame 1, and the beam replacement and the position adjustment during beam replacement are performed. Specifically, all be provided with flexible hydro-cylinder 8 between lifting by crane support 4 and the frame 1 at the both ends of crossbeam 1, and flexible hydro-cylinder 8 adopts the syntropy to arrange, and is provided with displacement sensor in the flexible hydro-cylinder 8, so guarantee that lifting by crane support 4 of both sides can realize synchronous sideslip.
In some embodiments, two cranes may be disposed on the girder 10 of the girder replacing machine, and the two cranes may have a risk of collision, so that a buffer 9 is disposed on the frame 1, and the buffer 9 adopts an elastic buffer structure.
In the above technical scheme, the opposite ends of the frames 1 on the two cranes are provided with the buffer 9, and when the two cranes collide due to misoperation and other reasons, the buffer 9 of the two trolleys collides, so that the crane structure or parts can be effectively protected.
It should be noted that in this document, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The foregoing is merely a specific embodiment of the disclosure to enable one skilled in the art to understand or practice the disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown and described herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. The crane is characterized by comprising a frame (1) arranged below a girder (10) of a girder replacing machine, a lifting device, a longitudinal movement driving mechanism and a transverse movement driving mechanism, wherein the longitudinal movement driving mechanism is used for driving the frame (1) to longitudinally travel relative to the girder (10) of the girder replacing machine, the transverse movement driving mechanism is used for driving the lifting device to transversely travel relative to the frame (1), and the lifting device, the longitudinal movement driving mechanism and the transverse movement driving mechanism are all arranged on the frame (1);
the longitudinal movement driving mechanism comprises a walking part (2) matched with the side edge and/or the bottom edge of the girder (10) of the girder replacing machine and a driving assembly used for driving the walking part (2) to move, the driving assembly comprises a driving motor (3) used for being matched with a gear part (31) of the girder (10) of the girder replacing machine and used for driving the gear part (31) to move, the lifting device comprises a lifting support (4), a winch (5) and a fixed pulley block (6), the lifting support (4) is in transverse sliding connection with the frame (1), the transverse movement driving mechanism is connected with the lifting support (4), and the winch (5) and the fixed pulley block (6) are longitudinally arranged on the lifting support (4).
2. Crane according to claim 1, characterized in that the travelling part (2) comprises a travelling wheel housing (21), both ends of the travelling wheel housing (21) are provided with travelling wheels (22), and the middle part of the travelling wheel housing (21) is provided with a balancing pin (23).
3. Crane according to claim 2, wherein the travelling part (2) further comprises an inverted U-shaped hanging part (24), one side wall of the hanging part (24) is connected with the frame (1), and the other side wall of the hanging part (24) is connected with the balancing pin (23).
4. Crane according to claim 1, characterized in that the hoisting support (4) is provided with a reversing wheel (41), the fixed pulley block (6) is arranged between the hoisting machine (5) and the reversing wheel (41), and the hoisting rope of the hoisting machine (5) is connected with the fixed pulley block (6) via the reversing wheel (41).
5. Crane according to claim 1, characterized in that the hoisting device further comprises a movable pulley block (7), the movable pulley block (7) being arranged below the stationary pulley block (6), a lifting beam support (71) being arranged on the movable pulley block (7).
6. Crane according to claim 1, characterized in that the traversing drive comprises a telescopic cylinder (8), the telescopic cylinder (8) being connected between the frame (1) and the hoisting device.
7. Crane according to claim 1, characterized in that the frame (1) is provided with a buffer (9).
8. Beam changing machine, characterized by comprising a crane according to any of claims 1-7.
9. The beam changer according to claim 8, comprising a beam changer main beam (10), wherein a longitudinal movement rail (101) is provided at a side of the beam changer main beam (10), and wherein the travelling part (2) of the crane is engaged with the longitudinal movement rail (101).
10. Beam changer according to claim 9, characterized in that the side and/or bottom edge of the beam changer main beam (10) is provided with rack plates (102) for cooperation with gear parts (31) of the crane.
CN202110888343.6A 2021-08-03 2021-08-03 Crane and beam changing machine Active CN113697680B (en)

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CN202110888343.6A CN113697680B (en) 2021-08-03 2021-08-03 Crane and beam changing machine

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Application Number Priority Date Filing Date Title
CN202110888343.6A CN113697680B (en) 2021-08-03 2021-08-03 Crane and beam changing machine

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CN113697680A CN113697680A (en) 2021-11-26
CN113697680B true CN113697680B (en) 2023-09-05

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DE3513879A1 (en) * 1985-04-17 1986-10-30 M.A.N - SWF - Elektrozug GmbH, 8016 Feldkirchen Single-girder crane
CN202055175U (en) * 2011-03-28 2011-11-30 徐州徐工铁路装备有限公司 Hoisting device of box girder-lifting machine beam-hanging traveling crane
CN102963821A (en) * 2012-11-20 2013-03-13 上海宏岸港口机械有限公司 Gantry crane
CN205636494U (en) * 2016-03-25 2016-10-12 郑州市华中建机有限公司 HZQY900 type fortune frame all -in -one
CN108217469A (en) * 2017-12-20 2018-06-29 武汉理工大学 A kind of Differential Driving bridge crane test stand and its Differential Driving method
CN108002226A (en) * 2017-12-27 2018-05-08 法兰泰克重工股份有限公司 Rub wheel drive suspended end beam
CN109835819A (en) * 2019-04-08 2019-06-04 中铁工程服务有限公司 Tunnel Mobile crane
CN211619288U (en) * 2020-01-15 2020-10-02 湖北三丰汉巍智能科技有限公司 Special type of AGV changes equipment of hanging

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