Crown block transverse moving device of ultra-low clearance bridge erecting machine

Abstract

The utility model relates to the technical field of bridge girder erection machines, and discloses an ultra-low clearance bridge girder erection machine crown block transverse moving device which comprises two longitudinal main beams arranged on a cover beam. The cross beam is mounted on the longitudinal main beam; the transverse translation mechanism comprises a crown block mounted on the cross beam; the lifting mechanism comprises a winch and a lifting rope driven by the winch, the winch is installed at one end of the cross beam, the lifting rope is wound on the crown block and used for lifting the beam piece, and the other end of the cross beam is provided with a fixing end used for fixing the lifting rope. According to the utility model, the winch is arranged at one end of the cross beam, so that the overall height of the crown block is reduced, construction can be conveniently carried out below a main beam, a beam piece is lifted by the lifting mechanism, the transverse position is adjusted by the transverse translation mechanism, and then the beam piece is moved to a specified position and put down; the problem that construction is not convenient to conduct below the main beam is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to bridge girder erection machine technical field, concretely relates to a kind of super-low clearance bridge girder erection machine crown block traversing device. BACKGROUND

[0002] The bridge girder erection machine is a kind of equipment that places prefabricated beam to prefabricated pier, and its main function is to lift the beam and then place it down after being transported to the position. The existing bridge girder erection machine comprises a longitudinal moving trolley movably installed on the bridge girder erection machine bridge and moving longitudinally along the bridge, a hoist traversing trolley for lateral movement arranged on the longitudinal moving trolley, a fixed pulley and a hoist for lifting installed on the hoist traversing trolley, the longitudinal moving trolley is transversely arranged between two longitudinal beams of the bridge girder erection machine bridge, and a stop wheel moving along the side of the bridge girder erection machine bridge is arranged on both sides of the longitudinal moving trolley. In order to ensure the stability of the hoist crown block on the bridge girder erection machine bridge, a stop wheel moving along the side of the bridge girder erection machine bridge is arranged on both sides of the longitudinal moving trolley, which can ensure that the hoist crown block does not fall, and thus has the advantages of simple structure, safety and reliability, and stable operation.

[0003] The existing bridge girder erection machine has the following problems: in some construction processes, construction needs to be carried out below the main beam of another bridge, at which time the construction space is limited. Since the hoist is installed on the hoist traversing trolley, the overall height of the traversing trolley (i.e. the crown block) is high, which is not convenient for construction below the main beam.

[0004] Based on the above situation, a super-low clearance bridge girder erection machine crown block traversing device is needed to solve the problem of inconvenient construction below the main beam. INVENTION CONTENTS

[0005] The utility model aims at the existing bridge girder erection machine, and solves the problem of inconvenient construction below the main beam in some construction processes, in which construction needs to be carried out below the main beam of another bridge, at which time the construction space is limited. Since the hoist is installed on the hoist traversing trolley, the overall height of the traversing trolley is high, which is not convenient for construction below the main beam.

[0006] The technical scheme of the utility model is as follows:

[0007] A super-low clearance bridge girder erection machine crown block traversing device comprises:

[0008] Two longitudinal main beams are arranged on the bent cap;

[0009] A cross beam is installed on the longitudinal main beams;

[0010] A lateral translation mechanism comprises a crown block installed on the cross beam;

[0011] The lifting mechanism comprises a winch and a lifting rope driven by the winch, the winch is installed at one end of the cross beam, and the lifting rope is arranged on the trolley and used for lifting the beam piece, and the other end of the cross beam is provided with a fixed end for fixing the lifting rope.

[0012] In the prior bridge erecting machine, in some construction processes, construction needs to be carried out below the main beam of another bridge, at this time, the construction space is limited, because the winch is installed on the hoisting transverse moving trolley, the overall height of the transverse moving trolley is high, and it is not convenient to carry out construction below the main beam, in the scheme, because the winch is installed at one end of the cross beam, the overall height of the trolley is reduced, so that the construction below the main beam is facilitated, the beam piece is lifted by the lifting mechanism, the transverse position is adjusted by the transverse translation mechanism, and then the beam piece is moved to a specified position and is lowered, so that the problem that it is not convenient to carry out construction below the main beam is solved.

[0013] Furthermore, the scheme does not uniquely limit the specific structure of the lifting mechanism, wherein one feasible scheme is that the lifting mechanism further comprises a pulley block arranged between the trolley and the beam piece, and the lifting rope is arranged around the pulley block, when this scheme is adopted, the pulling force of the lifting rope can be reduced by the pulley block, and the beam piece is more easily lifted.

[0014] Furthermore, the scheme does not uniquely limit the specific structure of the pulley block, wherein one feasible scheme is that the pulley block comprises a fixed shaft installed in the trolley and a movable shaft arranged below the fixed shaft, a plurality of fixed pulleys are installed on the fixed shaft, and a plurality of movable pulleys are installed on the movable shaft, when this scheme is adopted, when the winch pulls the lifting rope, all the movable pulleys can be synchronously moved upward, and then the beam piece is lifted.

[0015] Furthermore, in order to facilitate the transverse movement of the beam piece, one feasible scheme is that the transverse translation mechanism further comprises a transverse driving wheel installed on the trolley, the transverse driving wheel is in contact with the cross beam, when this scheme is adopted, the trolley is reciprocatingly moved along the cross beam by the transverse driving wheel, and then the beam piece is transversely moved.

[0016] Furthermore, in order to facilitate the longitudinal movement of the beam piece, one feasible scheme is that a longitudinal translation mechanism is installed between the cross beam and the longitudinal main beam, when this scheme is adopted, the cross beam is reciprocatingly moved along the longitudinal main beam by the longitudinal translation mechanism, and then the beam piece is longitudinally moved.

[0017] Further, the present scheme does not uniquely limit the specific structure of the longitudinal translation mechanism, wherein one possible scheme is that the longitudinal translation mechanism comprises a base for supporting the cross beam, the base is provided with a longitudinal driving wheel in contact with the longitudinal main beam, and when this scheme is adopted, the base and the cross beam are driven to move longitudinally reciprocatingly by the longitudinal driving wheel, thereby driving the beam piece to move longitudinally.

[0018] Compared with the prior art, the present utility model has the beneficial effects that:

[0019] I. Since the hoist is installed at one end of the cross beam, the overall height of the crown block is reduced, so as to facilitate the construction below the main beam, the beam piece is lifted by the lifting mechanism, the transverse position is adjusted by the transverse translation mechanism, and then the beam piece is lowered after being moved to the designated position, thereby solving the problem that it is inconvenient to construct below the main beam.

[0020] II. The lifting mechanism further comprises a pulley block arranged between the crown block and the beam piece, and the lifting rope is wound around the pulley block, and when this scheme is adopted, the pulling force of the lifting rope can be reduced by the pulley block, which is more conducive to lifting the beam piece.

[0021] III. Since the transverse translation mechanism further comprises a transverse driving wheel mounted on the crown block, the transverse driving wheel is in contact with the cross beam, and the crown block is driven to move reciprocatingly along the cross beam by the transverse driving wheel, thereby driving the beam piece to move transversely. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is an enlarged view of A in the embodiment of the present utility model;

[0023] Figure 2 It is a side view of the embodiment of the present utility model;

[0024] Figure 3 It is Figure 1 the enlarged view of A;

[0025] Figure 4 It is Figure 2 the enlarged view of B;

[0026] Figure 5 It is a pulley block structure schematic view of the embodiment of the present utility model.

[0027] REFERENCE SIGNS:

[0028] 1, longitudinal main beam; 2, bent cap; 3, cross beam; 4, transverse translation mechanism; 5, lifting mechanism; 6, beam piece; 7, longitudinal translation mechanism;

[0029] 31, fixed end;

[0030] 41, crown block; 42, transverse driving wheel;

[0031] 51, winch; 52, sling; 53, pulley block;

[0032] 531, fixed shaft; 532, movable shaft; 533, fixed pulley; 534, movable pulley;

[0033] 71, base; 72, longitudinal driving wheel. DETAILED DESCRIPTION

[0034] It should be noted that the relational terms herein, such as first and second, and the like, are used solely to distinguish one from another entity or action without necessarily requiring or implying any actual 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 can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0035] The features and performance of the present application will be further described in detail below with reference to the embodiments.

[0036] Embodiment:

[0037] Please refer to Figure 1 and Figure 3 A super-low-clearance bridge-erecting-machine crown block traversing device, comprising:

[0038] Two longitudinal main beams 1 are arranged on the bent cap 2;

[0039] A cross beam 3 is installed on the longitudinal main beam 1;

[0040] A transverse translation mechanism 4 comprises a crown block 41 installed on the cross beam 3;

[0041] A lifting mechanism 5 comprises a winch 51 and a sling 52 driven by the winch 51, the winch 51 is installed on one end of the cross beam 3, the sling 52 is arranged around the crown block 41 and is used to hoist the beam piece 6, and the other end of the cross beam 3 is provided with a fixed end 31 for fixing the sling 52.

[0042] In some construction processes, the existing bridge girder erection machine needs to be constructed under the main girder of another bridge, at which time the construction space is limited. Since the winch is installed on the hoisting trolley, the overall height of the trolley is high, which is not convenient for construction under the main girder. In the present scheme, since the winch 51 is installed at one end of the cross beam 3, the overall height of the overhead crane 41 is reduced, so as to facilitate the construction under the main girder. The beam piece 6 is lifted by the lifting mechanism 5, the lateral position is adjusted by the lateral translation mechanism 4, and then the beam piece 6 is moved to the designated position and is lowered, thereby solving the problem of inconvenient construction under the main girder.

[0043] The present scheme does not uniquely limit the specific structure of the lifting mechanism 5. One of the feasible schemes is that the lifting mechanism 5 further includes a pulley block 53 arranged between the overhead crane 41 and the beam piece 6, and the lifting rope 52 is wound around the pulley block 53. When this scheme is adopted, the pulling force of the lifting rope 52 can be reduced by the pulley block 53, which is more conducive to lifting the beam piece 6.

[0044] Referring to Figure 5 The present scheme does not uniquely limit the specific structure of the pulley block 53. One of the feasible schemes is that the pulley block 53 includes a fixed shaft 531 installed in the overhead crane 41 and a movable shaft 532 arranged below the fixed shaft 531. A plurality of fixed pulleys 533 are installed on the fixed shaft 531, and a plurality of movable pulleys 534 are installed on the movable shaft 532. When this scheme is adopted, when the winch 51 pulls the lifting rope 52, all the movable pulleys 534 can be lifted synchronously, thereby lifting the beam piece 6.

[0045] Referring to Figure 3 In order to facilitate the lateral movement of the beam piece 6, one of the feasible schemes is that the lateral translation mechanism 4 further includes a lateral drive wheel 42 installed on the overhead crane. The lateral drive wheel 42 is in contact with the cross beam 3. When this scheme is adopted, the overhead crane 41 is driven to move back and forth along the cross beam 3 by the lateral drive wheel 42, thereby moving the beam piece 6 laterally.

[0046] Referring to Figure 2 and Figure 4 In order to facilitate the longitudinal movement of the beam piece 6, one of the feasible schemes is that a longitudinal translation mechanism 7 is installed between the cross beam 3 and the longitudinal main girder 1. When this scheme is adopted, the cross beam 3 is driven to move back and forth along the longitudinal main girder 1 by the longitudinal translation mechanism 7, thereby moving the beam piece 6 longitudinally.

[0047] The present scheme does not uniquely limit the specific structure of the longitudinal translation mechanism 7. One of the feasible schemes is that the longitudinal translation mechanism 7 includes a base 71 for supporting the cross beam 3. A longitudinal drive wheel 72 is installed on the base 71 and is in contact with the longitudinal main girder 1. When this scheme is adopted, the base 71 and the cross beam 3 are driven to move longitudinally back and forth by the longitudinal drive wheel 72, thereby driving the beam piece 6 to move longitudinally.

[0048] Preferably, in the embodiment, several height-adjustable supporting legs are arranged between the longitudinal girder 1 and the cap beam 2, and when the supporting legs are adjusted, the longitudinal girder 1 can be adjusted to a horizontal state.

[0049] In order to solve the problem that it is inconvenient to construct under the girder, in the embodiment, the hoist 51 is installed at one end of the cross beam 3, the overall height of the crown block 41 is reduced, and it is convenient to construct under the girder. The girder piece 6 is lifted by the lifting mechanism 5, the horizontal position is adjusted by the horizontal translation mechanism 4, and then the girder piece 6 is moved to a specified position and is lowered, thereby solving the problem that it is inconvenient to construct under the girder.

[0050] In order to conveniently lift the girder piece 6, in the embodiment, the lifting mechanism 5 further comprises a pulley block 53 arranged between the crown block 41 and the girder piece 6, and the lifting rope 52 is wound around the pulley block 53, and when the pulley block 53 is adopted, the pulling force of the lifting rope 52 can be reduced, and the girder piece 6 is more conveniently lifted.

[0051] In order to conveniently move the girder piece 6 horizontally, in the embodiment, the horizontal translation mechanism 4 further comprises a horizontal driving wheel 42 installed on the crown block, the horizontal driving wheel 42 is in contact with the cross beam 3, the crown block 41 is driven to reciprocate along the cross beam 3 by the horizontal driving wheel 42, and the girder piece 6 is moved horizontally.

[0052] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An ultra-low-clearance bridge-erecting machine trolley traversing device, characterized in that, The utility model relates to a kind of beam lifting device, including: Two longitudinal girders (1) are arranged on the bent cap (2); Crossbeam (3) is installed on the longitudinal girders (1); Transverse translation mechanism (4) includes headstock (41) installed on the crossbeam (3); Lifting mechanism (5) includes winch (51) and hoisting rope (52) driven by winch (51), the winch (51) is installed on one end of crossbeam (3), and the hoisting rope (52) is wound on headstock (41) and is used to lift beam piece (6), and the other end of the crossbeam (3) is provided with fixed end (31) for fixing hoisting rope (52).

2. The super low-clearance bridge-erecting machine trolley traversing device according to claim 1, characterized in that, The lifting mechanism (5) further includes pulley block (53) arranged between headstock (41) and beam piece (6), and hoisting rope (52) is wound on pulley block (53).

3. The trolley traverse device of an ultra-low-clearance bridge-erecting machine according to claim 2, characterized in that The pulley block (53) includes fixed shaft (531) installed in headstock (41) and movable shaft (532) arranged below fixed shaft (531), a plurality of fixed pulleys (533) are installed on the fixed shaft (531), and a plurality of movable pulleys (534) are installed on the movable shaft (532).

4. The trolley traverse device of an ultra-low-clearance bridge-erecting machine according to claim 1, characterized in that, The transverse translation mechanism (4) further includes transverse drive wheel (42) installed on headstock, and the transverse drive wheel (42) is in contact with crossbeam (3).

5. The trolley traverse device of an ultra-low-clearance bridge-erecting machine according to claim 1, characterized in that, The crossbeam (3) and longitudinal girders (1) are installed with longitudinal translation mechanism (7).

6. The trolley traverse device of an ultra-low-clearance bridge-erecting machine according to claim 5, characterized in that The longitudinal translation mechanism (7) includes base (71) for supporting crossbeam (3), and longitudinal drive wheel (72) is installed on the base (71) and in contact with longitudinal girders (1).

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