阅读说明：本技术 起重机及换梁机 (Crane and beam replacing machine ) 是由 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 于 2021-08-03 设计创作，主要内容包括：本公开涉及铁路换梁技术领域,特别涉及一种起重机及换梁机。该起重机包括用于设置在换梁机主梁下方的机架、起吊装置、纵移驱动机构及横移驱动机构,起吊装置、纵移驱动机构及横移驱动机构均设置于机架上；起吊装置相对机架在横向上行走,起吊装置、纵移驱动机构及横移驱动机构均设置于机架上；纵移驱动机构包括用于与换梁机主梁的侧边和/或底边配合的行走部、用于驱动行走部运动的驱动组件。本公开提供的起重机中,通过设置与换梁机主梁的侧面配合的纵移驱动机构,有效避免起重机占用换梁机主梁上方的高度空间,不用牺牲支腿的高度来满足铁路限界的高度要求,便于完成简支箱梁换运架操作。(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 rack, a hoisting device, a longitudinal movement driving mechanism and a transverse movement driving mechanism, wherein the rack is arranged below a main beam of a beam replacing machine; the lifting device travels in the transverse direction relative to the rack, and the lifting device, the longitudinal movement driving mechanism and the transverse movement driving mechanism are all arranged on the rack; the longitudinal movement driving mechanism comprises a walking part and a driving assembly, wherein the walking part is used for being matched with the side edge and/or the bottom edge of the girder replacing machine main girder, and the driving assembly is used for driving the walking part to move. In the crane provided by the disclosure, the longitudinal movement driving mechanism matched with the side surface of the girder replacing machine girder is arranged, so that the crane is effectively prevented from occupying the height space above the girder replacing machine girder, the height requirement of a railway clearance is met without sacrificing the height of the supporting legs, and the operation of replacing the simple box girder and the transportation frame is convenient to complete.)

1. A crane is characterized by comprising a rack (1) arranged below a girder replacing machine main beam (10), a hoisting device, a longitudinal movement driving mechanism and a transverse movement driving mechanism, wherein the longitudinal movement driving mechanism is used for driving the rack (1) to longitudinally move relative to the girder replacing machine main beam (10), the transverse movement driving mechanism is used for driving the hoisting device to transversely move relative to the rack (1), and the hoisting device, the longitudinal movement driving mechanism and the transverse movement driving mechanism are all arranged on the rack (1);

the longitudinal movement driving mechanism comprises a walking part (2) matched with the side edge and/or the bottom edge of the girder changing machine main beam (10) and a driving assembly for driving the walking part (2) to move, and the driving assembly comprises a gear part (31) matched with the girder changing machine main beam (10) through a gear and a driving motor (3) for driving the gear part (31) to move.

2. The crane according to claim 1, wherein the walking part (2) comprises a walking wheel housing (21), walking wheels (22) are arranged at two ends of the walking wheel housing (21), and a balance pin shaft (23) is arranged in the middle of the walking wheel housing (21).

3. The crane according to claim 2, wherein the walking 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 balance pin shaft (23).

4. A crane according to claim 1, characterized in that the hoisting means comprise a hoisting support (4), a hoisting machine (5) and a set of crown blocks (6), the hoisting support (4) being in sliding connection with the frame (1) in the transverse direction, the traverse driving mechanism being connected with the hoisting support (4), the hoisting machine (5) and the set of crown blocks (6) being arranged on the hoisting support (4) in the longitudinal direction.

5. A crane according to claim 4, characterized in that a reversing wheel (41) is arranged on the hoisting support (4), the block of crown blocks (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 block of crown blocks (6) via the reversing wheel (41).

6. The crane according to claim 4, wherein the hoisting device further comprises a movable pulley block (7), the movable pulley block (7) is arranged below the fixed pulley block (6), and a lifting beam bracket (71) is arranged on the movable pulley block (7).

7. A crane according to claim 1, characterized in that the traverse drive comprises a telescopic cylinder (8), which telescopic cylinder (8) is connected between the frame (1) and the hoisting device.

8. A crane according to claim 1, characterized in that a buffer (9) is arranged on the frame (1).

9. A beam exchanger characterized by comprising a crane according to any one of claims 1 to 8.

10. The beam exchanger according to claim 9, characterized by comprising a main beam (10) of the beam exchanger, wherein longitudinal rails (101) are arranged on the sides of the main beam (10) of the beam exchanger, and the traveling part (2) of the crane is matched with the longitudinal rails (101).

11. A beam exchanger according to claim 10, characterized in that the sides and/or bottom edges of the main beam (10) of the beam exchanger are provided with rack plates (102) for cooperation with gear members (31) of the crane.

Technical Field

The utility model relates to a railway trades roof beam technical field, especially relates to a hoist and trade roof beam machine.

Background

The number of the existing railway simply-supported box girders in China is large, the ageing phenomenon of the bridge is common along with the passing of railway operation time, and the service life of the railway simply-supported box girders can be prolonged in advance. In addition, the damage influence of natural environment, the concrete cracks, peels and other diseases of different degrees occur in some railway simple-supported box girders in earlier construction years, the strength or rigidity of the railway simple-supported box girders cannot meet the transportation requirements, and the safe operation of business lines cannot be ensured. Meanwhile, due to railway energy expansion and electrification transformation, some railways which do not meet the requirement of safe operation also need to be transformed. Therefore, the technology of replacing and transporting the existing railway simply supported box girder is inevitably applied when the railway is transformed.

A beam replacing machine is generally adopted in the technology of replacing and transporting the railway simply supported box beams, so that the railway simply supported box beams are replaced and transported. The beam replacing machine comprises supporting legs, main beams are arranged on the supporting legs, and cranes used for hanging railway simply-supported box girders are arranged on the main beams. The railway has the requirement of railway clearance, and the railway clearance refers to an outline dimension line which is set for ensuring the transportation safety and cannot be exceeded on the line between buildings, equipment and rolling stocks. When the simply supported box girder replacing and transporting frame is used, the whole beam replacing machine cannot exceed the height requirement of a railway clearance, in the prior art, the height of supporting legs is sacrificed by some beam replacing machines to meet the height requirement of the railway clearance, but the height of the supporting legs is too low, the height range reserved for adjusting hanging beam pieces is also reduced, and the simply supported box girder replacing and transporting frame is not facilitated; and the leg structure is further optimized at the expense of the height of the leg, which also increases the cost.

Disclosure of Invention

The utility model aims to provide a hoist and trade roof beam machine avoids the hoist to occupy the high space of trading roof beam machine girder top, need not sacrifice the height that highly satisfies the railway clearance of landing leg, is convenient for accomplish the simple box girder and trades the fortune frame operation.

In order to achieve the above purpose, the present disclosure provides a crane, including a frame arranged below a main beam of a beam exchanger, a hoisting device, a longitudinal movement driving mechanism and a transverse movement driving mechanism, wherein the longitudinal movement driving mechanism is used for driving the frame to travel in a longitudinal direction relative to the main beam of the beam exchanger, the transverse movement driving mechanism is used for driving the hoisting device to travel in a transverse direction relative to the frame, and the hoisting 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 and a driving assembly, wherein the walking part is used for being matched with the side edge and/or the bottom edge of the girder replacing machine main girder, the driving assembly is used for driving the walking part to move, and the driving assembly comprises a gear part and a driving motor, the gear part is matched with the girder replacing machine main girder gear, and the driving motor is used for driving the gear part to move.

Optionally, the walking part includes walking wheel shell, the both ends of walking wheel shell all are provided with the walking wheel, the middle part of walking wheel shell is provided with balance pin axle.

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 lifting device comprises a lifting support, a winch and a fixed pulley block, the lifting support is connected with the rack in a transverse sliding mode, the transverse moving driving mechanism is connected with the lifting support, and the winch and the fixed pulley block are longitudinally arranged on the lifting 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 lifting device further comprises a movable pulley block, the movable pulley block is arranged below the fixed pulley block, and a hanging beam support is arranged on the movable pulley block.

Optionally, the traverse driving mechanism comprises a telescopic oil cylinder, and the telescopic oil cylinder is connected between the rack and the lifting device.

Optionally, a buffer is arranged on the frame.

The disclosure also provides a beam replacing machine which comprises the crane.

Optionally, the crane comprises a girder replacing machine main beam, wherein a longitudinal moving track is arranged on the side edge of the girder replacing machine main beam, and the traveling 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, a traditional square crane structure is avoided, but a frame arranged below a girder of a girder exchanger is directly adopted as a main frame structure of the crane, and a hoisting device, a longitudinal movement driving mechanism and a transverse movement driving mechanism are arranged on the frame, so that the crane is prevented from occupying the height space above the girder of the girder exchanger, the height requirement of a railway limit is met without sacrificing the height of a supporting leg, and a sufficient height range is reserved for adjusting a hanging girder piece; and the position adjustment of the simple-supported box girder during beam replacement and girder erection is realized through the longitudinal movement driving mechanism and the transverse movement driving mechanism, so that the operation of replacing the simple-supported box girder transportation frame is conveniently, efficiently and accurately completed.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.

In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present disclosure, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

Fig. 1 is a schematic view of a crane and a girder of a girder replacement machine according to an embodiment of the disclosure;

fig. 2 is a first perspective view of a crane provided in an embodiment of the present disclosure;

fig. 3 is a schematic perspective view of a crane provided in the embodiment of the present disclosure, in which a frame is not shown;

FIG. 4 is a schematic view of a gantry of a crane provided by an embodiment of the present disclosure;

fig. 5 is a schematic view of a movable pulley block of the crane provided in the embodiment of the present disclosure.

Wherein, 1, a frame; 11. a cross beam; 12. a stringer; 2. a traveling section; 21. a traveling wheel housing; 22. a traveling wheel; 23. a balance pin shaft; 24. a hanging part; 3. a drive motor; 31. a gear component; 4. lifting the support; 5. a winch; 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. replacing the girder of the girder replacing machine; 101. longitudinally moving the rail; 102. a rack plate.

Detailed Description

In order that the above objects, features and advantages of the present disclosure may be more clearly understood, aspects of the present disclosure will be further described below. It should be noted that the embodiments and features of the embodiments of the present disclosure may be combined with each other without conflict.

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 in other ways than those described herein; it is to be understood that the embodiments disclosed in the specification are only a few embodiments of the present disclosure, and not all embodiments.

The disclosed embodiment provides a beam exchanger, which comprises a main beam 10 of the beam exchanger and a crane, wherein,

the crane comprises a rack 1, a hoisting device, a longitudinal movement driving mechanism and a transverse movement driving mechanism, wherein the rack 1 is arranged below a girder 10 of the girder exchanger, the rack 1 does not occupy the space above the girder 10 of the girder exchanger, and the hoisting device, the longitudinal movement driving mechanism and the transverse movement driving mechanism are all arranged on the rack 1 and do not exceed the girder 10 of the girder exchanger during arrangement, so that the overall height of the girder exchanger can be reduced to the maximum extent;

the longitudinal movement driving mechanism comprises a walking part 2 and a driving assembly used for driving the walking part 2 to move, the walking part 2 is always in contact connection with a girder of the girder replacing machine 10, the walking part 2 is matched with the side edge and/or the bottom edge of the girder replacing machine 10 in the longitudinal direction, the hoisting device is used for hanging a simply supported box girder, the longitudinal movement driving mechanism is used for driving the rack 1 to move in the longitudinal direction relative to the girder of the girder replacing machine, so that the girder is transported, and the transverse movement driving mechanism is used for driving the hoisting device to move in the transverse direction relative to the rack 1, so that the position adjustment during the girder replacing and the girder erecting is carried out.

Compared with the prior art, the crane has the advantages that the traditional square crane structure is avoided, the frame 1 arranged below the girder replacing machine main beam 10 is directly adopted as the main frame structure of the crane, the hoisting device, the longitudinal movement driving mechanism and the transverse movement driving mechanism are arranged on the frame 1, the crane is prevented from occupying the height space above the girder replacing machine main beam 10, the height requirement of a railway limit is met without sacrificing the height of the supporting legs, and an enough height range is reserved for adjusting the hanging girder pieces; and the position adjustment of the simple-supported box girder during beam replacement and girder erection is realized through the longitudinal movement driving mechanism and the transverse movement driving mechanism, so that the operation of replacing the simple-supported box girder transportation frame is conveniently, efficiently and accurately completed.

The crane is divided into a front crane and a rear crane when in use, wherein the steel wire rope of the front crane adopts an independent winding mode, the steel wire rope of the rear crane adopts a balanced winding mode, and the front crane and the rear crane form four-point hoisting and three-point balancing together.

The driving assembly comprises a gear part 31 for gear matching with the main beam 10 of the beam changing machine and a driving motor 3 for driving the gear part 31 to move.

Among the above-mentioned technical scheme, avoid adopting the form that driven driving motor driven walking wheel walked, utilize gear part 31 and trade roof beam machine girder 10 gear cooperation, accurate and stable driving frame 1 walks relatively trade roof beam machine girder 10, and gear part 31 and trade roof beam machine girder 10 gear cooperation avoid the hoist to walk unstably and take place to control the displacement about taking place, avoid appearing the unstable condition of rocking when a letter case roof beam trades fortune frame operation.

In some embodiments, the side of the main beam 10 of the beam changer is provided with a longitudinal moving rail 101, and specifically, both sides of the main beam 10 of the beam changer are provided with flanges, so that the longitudinal moving rail 101 is formed on both sides, both ends of the frame 1 extend out relative to both sides of the main beam 10 of the beam changer, the walking part 2 extends upwards from the frame 1, and the walking part 2 is matched with the longitudinal moving rail 101.

Among the above-mentioned technical scheme, the cooperation of walking portion 2 and the track 101 that moves from north to south of trading roof beam machine girder 10 both sides realizes that frame 1 can be followed the vertical walking that trades roof beam machine girder 10, and hoisting accessory, move from north to south simultaneously actuating mechanism and sideslip actuating mechanism set up in frame 1, and the existing height that trades roof beam machine girder 10 occupy has rationally been utilized, does not occupy the height above trading roof beam machine girder 10 and below, leaves sufficient height space for hoisting accessory and following simple case roof beam, is convenient for adjust the hanging roof beam piece.

In some embodiments, the traveling part 2 includes a traveling wheel housing 21, the traveling wheel housing 21 is longitudinally arranged, traveling wheels 22 are arranged at two ends of the traveling wheel housing 21 in the longitudinal direction, a balance pin shaft 23 is arranged in the middle of the traveling wheel housing 21, and the traveling wheel housing 21 can rotate by arranging the balance pin shaft 23.

In the above technical solution, the traveling part 2 is not only limited to be provided with a set of traveling wheel housing 21 and traveling wheels 22, but also can be provided with a plurality of sets of traveling wheel housings 21 and traveling wheels 22 in the longitudinal direction. When the longitudinal movement track 101 is inclined or uneven, the walking wheel shell 21 can swing relative to the balance pin shaft 23, so that the walking wheels 22 at the front end and the rear end are balanced, the wheel pressure at the two ends is equal, and the crane is ensured to run stably.

In some embodiments, the walking part 2 further comprises an inverted U-shaped hanging part 24, the hanging part 24 comprises two side walls, namely a long side wall and a short side wall, the long side wall of the hanging part 24 extends downwards to be connected with the frame 1, and the short side wall of the hanging part 24 is connected with the balance pin 23.

Among the above-mentioned technical scheme, the middle part of walking wheel shell 21 has been seted up uncovered, and the short lateral wall of hanging portion 24 inserts in uncovered, and balance pin 23 passes the mounting hole and is connected with the short lateral wall of walking wheel shell 21 and hanging portion 24. The structure realizes the quick connection of the frame 1 and the walking part 2, so that the whole crane is in a reverse hanging structure and is matched with the longitudinal moving rails 101 on two sides of the girder 10 of the girder replacing machine.

In some embodiments, the side edges and/or the bottom edges of the main beam 10 of the beam changer are provided with rack plates 102, optionally, both side edges of the main beam 10 of the beam changer 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 31 matched with the rack plates 102.

Among the above-mentioned technical scheme, avoid adopting the form that driven driving motor driven walking wheel walked, utilize the cooperation of gear 31 and rack plate 102, accurate and stable driving rack 1 is walked relatively trading roof beam machine girder 10, and gear 31 and rack plate 102 meshing avoid the trolley walking unstability and take place to control the displacement, avoid appearing the unstable condition of rocking when a letter case roof beam trades fortune frame operation.

In some embodiments, the hoisting device includes a hoisting support 4, a winch 5 and a fixed pulley block 6, the hoisting support 4 is connected with the frame 1 in a sliding manner in the transverse direction, preferably, the hoisting support 4 is arranged at both ends of the frame 1, the hoisting support 4 is arranged at a portion of the frame 1 extending out of the side edge of the girder 10 of the girder exchanger, the hoisting support 4 is provided with a sliding portion, a rail portion matched with the sliding portion is arranged on the frame 1, the traverse driving mechanism is connected with the hoisting support 4, the winch 5 and the fixed pulley block 6 are longitudinally arranged on the hoisting support 4, and a lifting rope of the winch 5 extends downwards through the fixed pulley block 6 for hanging the simply supported box girder.

In the technical scheme of the disclosure, the winch 5 and the fixed pulley block 6 are longitudinally arranged, so that the occupation of the space with the height above and the occupation of the space in the transverse direction are avoided, the height of the whole crane is reduced, and the requirement of a railway clearance is met; the sliding part on the lifting support 4 is matched with the rail part on the rack 1, and the transverse moving driving mechanism drives the lifting support 4 to slide transversely relative to the rack 1, so that the position adjustment during beam replacement and beam erection is carried out.

In some embodiments, the reversing wheel 41 is disposed on the lifting support 4, the fixed pulley block 6 is disposed between the winch 5 and the reversing wheel 41, and the lifting rope of the winch 5 is connected with the fixed pulley block 6 through the reversing wheel 41.

In the technical scheme, the lifting rope is pulled 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, the lifting rope is in a state close to the same level with the upper end of the fixed pulley block 6 at the moment, the inclination angle between the lifting rope and the fixed pulley block 6 is obviously reduced at the moment, 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 includes a movable pulley block 7, specifically, the movable pulley blocks 7 are disposed on both sides of the main beam 10 of the beam changer, a connecting beam 72 is connected between the movable pulley blocks 7, the movable pulley block 7 is disposed below the fixed pulley block 6, a hanging beam bracket 71 is disposed on the movable pulley block 7, the hanging beam bracket 71 is integrally U-shaped, and both side ends are respectively connected with the movable pulley blocks 7 on both sides for hanging the simple box girder.

In the technical scheme, the frame 1 is composed of two beams 11, two ends of the two beams 11 respectively extend out of two sides of a main beam 10 of the beam changer, two ends of the two beams 11 are respectively provided with a walking part 2, wherein a hanging part 24 is connected with the beams 11, and a longitudinal beam 12 is connected between two corresponding hanging parts 24 in the longitudinal direction, so that a main frame structure of the crane is formed; the two lifting supports 41 are respectively arranged at two ends of the cross beam 1, the lifting supports 41 are longitudinally arranged, the fixed pulley block 6 is arranged in the middle of the lifting support 41 and correspondingly positioned at a vacant position between the two cross beams 11, the same movable pulley block 7 is also positioned at a vacant position between the two cross beams 11, and the longitudinal beam 12 is connected between the hanging parts 24, so that a space is avoided for the movable pulley block 7, the movable pulley block 7 can be hung between the two cross beams 11, and the structural arrangement of the crane is more compact and uniform.

In some embodiments, the traverse 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 traverse driving mechanism can also adopt a mode of a linear displacement driving mechanism in the prior art, such as chain transmission, telescopic cylinder or roller driving, so that the lifting device moves transversely relative to the frame 1.

In the technical scheme, the connecting frames are arranged on the side edge of the rack 1, the lifting support 41 is also provided with the connecting frames in an extending mode, and the telescopic oil cylinder is arranged between the two connecting frames so as to drive the lifting device to move transversely relative to the rack 1, so that the position adjustment during beam replacement and beam erecting is carried out. Specifically, telescopic oil cylinders 8 are arranged between the lifting supports 41 at the two ends of the cross beam 1 and the rack 1, the telescopic oil cylinders 8 are arranged in the same direction, and displacement sensors are arranged in the telescopic oil cylinders 8, so that the lifting supports 41 at the two sides can be ensured to be capable of realizing synchronous transverse movement.

In some embodiments, two cranes are arranged on the main beam 10 of the beam changer, and the two cranes may have a collision risk, so the frame 1 is provided with the buffer 9, and the buffer 9 adopts an elastic buffer structure.

Among the above-mentioned technical scheme, the frame 1 on two cranes one end relative to each other all is provided with buffer 9, and when two cranes bump because of reasons such as maloperation, the buffer 9 of two dollies bumps, can protect crane structure or part effectively.

It is noted that, in this document, relational terms such as "first" and "second," and the like, may be 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. Also, 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 an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The foregoing are merely exemplary embodiments of the present disclosure, which enable those skilled in the art to understand or practice the present 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 herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.