Hanging device of single-arm box girder bridge girder erection machine

Abstract

The utility model discloses a hanging device of a single-arm box girder bridge girder erection machine, and particularly relates to the technical field of hanging, the hanging device comprises an upper ball seat and a lower ball seat, the upper ball seat is arranged above the lower ball seat, a hanging pipe is arranged on the bottom surface of the lower ball seat, a C-shaped frame body is fixedly arranged at the bottom end of the hanging pipe, and the lower end of the C-shaped frame body is fixedly connected with the lower ball seat. The two sides of the C-shaped frame body are symmetrically and rotationally connected with two large gear rings, each large gear ring is driven by a driving mechanism to rotate, and a walking mechanism is installed on the inner side of the C-shaped frame body. When the device is used, the operation is simple, the line contact or surface contact mode of the device and a main beam is changed into spherical contact, so that a structure is eccentric, and the service life of the structure is prolonged. Meanwhile, the impact and overturning moment of inertia force generated by longitudinal movement of the hanging beam on the supporting legs are reduced, traditional chain transmission is replaced with meshing transmission of the large gear ring and the pin, and therefore potential safety hazards are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a hanging device of single -arm box girder bridge -erecting machine. BACKGROUND

[0002] The bridge -erecting machine is the equipment that places the prefabricated beam piece to the prefabricated pier. The bridge -erecting machine belongs to the category of crane, because its main function is to lift the beam piece, then transports to the position and puts down, the bridge -erecting machine is divided into erecting highway bridge, conventional railway bridge, passenger special railway bridge etc., and the hanging is the straight -line car of beam piece hoisting, and needs to ensure the stability of beam piece in the transport link of beam piece.

[0003] The existing hanging and main beam are generally linear contact or surface contact, the structure is unevenly stressed, makes the equipment unstable, and the existing hanging transmission adopts chain transmission, and the chain is easy to cause safety accidents after breaking. UTILITY MODEL CONTENT

[0004] In order to overcome the above-mentioned defects of prior art, the embodiment of the utility model provides a hanging device of single -arm box girder bridge -erecting machine, and the utility model wants to solve the technical problems that the existing hanging and main beam are generally linear contact or surface contact, the structure is unevenly stressed, makes the equipment unstable, and the existing hanging transmission adopts chain transmission, and the chain is easy to cause safety accidents after breaking.

[0005] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A hanging device of single -arm box girder bridge -erecting machine, including upper ball seat and lower ball seat, the upper ball seat is installed in the upper of lower ball seat, the bottom surface of lower ball seat is installed with the hanging pipe, the bottom end of hanging pipe is fixedly installed with C type frame body, two big gear rings are symmetrically connected on the both sides of C type frame body, each big gear ring is driven to rotate by drive mechanism, and the inner side of C type frame body is installed with travelling mechanism.

[0007] As shown in Fig. 1-2 The embodiment is specific: by setting the upper ball seat, the device is connected with the main beam through the upper ball seat, the stress surface support point is spherical contact, so that the structure eccentricity is uniformly stressed, through the spherical contact between the upper ball seat and the main beam, the load can be uniformly acted on the supporting leg, is not affected by the bridge slope, the stress is clear, the horizontal load is reduced to the overturning effect of supporting leg, the inertia force of the longitudinal displacement of the beam is reduced to the impact and overturning moment of supporting leg, the stability and safety of the bridge -erecting machine are higher, and the big gear ring is engaged with the pin installed on the hanging arm, so as to replace the traditional chain transmission and reduce the security risk.

[0008] In a preferred embodiment, the top end of the hanging pipe penetrates the lower ball seat and extends into the upper ball seat, the inner part of the upper ball seat is fixed with a ball seat pin, and the ball seat pin penetrates the hanging pipe.

[0009] In a preferred embodiment, the walking mechanism comprises a plurality of upper roller trolleys, and the plurality of upper roller trolleys are symmetrically installed on the bottom surface of the C-shaped frame body, and a plurality of lower roller trolleys are installed on the two inner sides of the C-shaped frame body.

[0010] In a preferred embodiment, each driving mechanism comprises a driving motor, and each driving motor is fixedly installed on the bottom surface of the C-shaped frame body, the bottom surface of each driving motor is fixedly installed with a driving speed reducer, the output shaft of each driving motor is connected with the driving speed reducer corresponding in position, and the output end of each driving speed reducer is connected with the large gear ring corresponding in position.

[0011] In a preferred embodiment, a plurality of top guide wheel sets are symmetrically installed on the two outer sides of the lower ball seat, and a plurality of bottom guide wheel sets are installed on the two inner sides of the C-shaped frame body.

[0012] In a preferred embodiment, each bottom guide wheel set is arranged between the upper roller trolley and the lower roller trolley on the same side.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] 1. The utility model discloses a device for connecting a main beam, which comprises an upper ball seat, a lower ball seat and a ball seat pin, wherein the upper ball seat is connected with the main beam, the lower ball seat is connected with a hanging beam, the ball seat pin penetrates the upper ball seat and the lower ball seat, and the ball seat pin is connected with the hanging beam.

[0015] 2. The utility model discloses a device for driving a C-shaped frame body, which comprises a driving speed reducer, a driving motor and a large gear ring, wherein the driving speed reducer is connected with the driving motor, the large gear ring is connected with a column pin installed on a hanging arm, and the driving motor is connected with the C-shaped frame body.

[0016] In summary, the utility model in the use, simple operation, change the line contact or the surface contact mode of the device and the main beam into the spherical surface contact, so that the structure eccentric, uniform stress, reduce the inertia force of the hanging beam longitudinal displacement to the impact and the overturning moment of the support leg, and the traditional chain transmission is replaced into the meshing transmission of the large gear ring and the column pin, thereby reducing the security risk. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1The utility model provides a kind of single-arm box girder bridge erecting machine's hanging device's front structure schematic view of device;

[0018] Fig. 2 The utility model provides a kind of single-arm box girder bridge erecting machine's hanging device's side structure schematic view of device.

[0019] In the drawing: 1 upper ball seat, 2 lower ball seat, 3 top guide wheel group, 4 hanging pipe, 5 C-shaped frame body, 6 large gear ring, 7 upper roller trolley, 8 bottom guide wheel group, 9 lower roller trolley, 10 drive speed reducer, 11 drive motor. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0021] Referring to Fig. 1-2 A kind of single-arm box girder bridge erecting machine's hanging device, including upper ball seat 1 and lower ball seat 2, upper ball seat 1 is installed in the upper of lower ball seat 2, the bottom surface of lower ball seat 2 is installed with hanging pipe 4, the bottom end of hanging pipe 4 is fixedly installed with C-shaped frame body 5, two large gear rings 6 are symmetrically connected with two large gear rings 6 on the both sides of C-shaped frame body 5, each large gear ring 6 is rotated by drive mechanism, and walking mechanism is installed to the inside of C-shaped frame body 5.

[0022] As Fig. 1-2 Indicated, embodiment is specific: by setting upper ball seat 1, so that the device can be connected with main beam by upper ball seat 1, and the stress surface support point is spherical contact, so that the structure eccentric, uniform stress, simultaneously by upper ball seat 1 and main beam spherical contact, can make load uniform effect on support leg, not influenced by bridge slope, stress is clear, reduce horizontal load overturning effect on support leg, reduce the inertia force of the impact and overturning moment of support leg generated by beam longitudinal displacement, make the stability and safety of bridge erecting machine higher, simultaneously by large gear ring 6 and the column pin installed on the hanging arm are engaged, to replace traditional chain transmission, reduce security risks.

[0023] It needs to be explained that the hanging arm (not shown) is the main bearing and hoisting component, and the device is located below the hanging arm, a plurality of column pins are installed on the two inner sides of the hanging arm to replace the traditional chain transmission.

[0024] The top end of hanging pipe 4 penetrates lower ball seat 2 and extends into upper ball seat 1, a ball seat pin is fixed in the inside of upper ball seat 1, and the ball seat pin penetrates hanging pipe 4, the horizontal rotation of upper ball seat 1 can drive hanging pipe 4 to rotate through the ball seat pin, so as to realize the turning of C-shaped frame body 5.

[0025] The walking mechanism comprises a plurality of upper roller trolleys 7 symmetrically installed on the bottom surface of the C-shaped frame body 5, and a plurality of lower roller trolleys 9 are installed on the two inner sides of the C-shaped frame body 5.

[0026] Each driving mechanism comprises a driving motor 11 fixedly installed on the bottom surface of the C-shaped frame body 5, and a driving speed reducer 10 fixedly installed on the bottom surface of each driving motor 11, and the output shaft of each driving motor 11 is connected with the corresponding driving speed reducer 10, and the output end of each driving speed reducer 10 is connected with the corresponding large gear ring 6, so that the driving motor 11 provides power for the large gear ring 6, and the driving speed reducer 10 is used for adjusting the torque of the large gear ring 6.

[0027] A plurality of top guide roller groups 3 are symmetrically installed on the two outer sides of the lower ball seat 2, and a plurality of bottom guide roller groups 8 are installed on the two inner sides of the C-shaped frame body 5, so that the device moving on the boom is guided and the friction is reduced, and the bottom guide roller groups 8 provide a guiding effect for the walking of the beam.

[0028] Each bottom guide roller group 8 is arranged between the upper roller trolley 7 and the lower roller trolley 9 on the same side.

[0029] In use, the spherical surface of the upper ball seat 1 is connected with the main beam through force support points for spherical surface contact, so that uniform stress is generated, and the driving motor 11 is started to drive the large gear ring 6 to rotate under the cooperation of the driving speed reducer 10, and the column pin installed on the boom drives the device to move, so that the traditional chain transmission can be replaced to reduce safety hazards, the device is guided by the top guide roller group 3 and the friction is reduced, then the beam is placed between the upper roller trolley 7 and the lower roller trolley 9, the beam is driven to move through the cooperation of the upper roller trolley 7 and the lower roller trolley 9, and the beam is guided by the bottom guide roller group 8 to avoid deviation.

[0030] The above only describes some exemplary embodiments of the utility model in a descriptive manner, without doubt, for ordinary skilled in the art, under the condition that the spirit and scope of the utility model are not deviated, the described embodiments can be modified in various different ways. Therefore, the above drawings and description are illustrative in nature and should not be understood as limiting the scope of protection of the utility model claims.

Claims

1. A hanging device for a single-arm box girder bridge erection machine, comprising an upper ball seat (1) and a lower ball seat (2), characterized in that: The upper ball seat (1) is installed above the lower ball seat (2); a hanging tube (4) is installed on the bottom surface of the lower ball seat (2); a C-shaped frame (5) is fixedly installed at the bottom end of the hanging tube (4); two large gear rings (6) are symmetrically connected to each other on both sides of the C-shaped frame (5); each large gear ring (6) is driven to rotate by a driving mechanism; and a walking mechanism is installed on the inner side of the C-shaped frame (5).

2. The hanging device of the single-arm box girder bridge erecting machine according to claim 1, characterized in that: The top end of the hanging tube (4) passes through the lower ball seat (2) and extends into the upper ball seat (1); a ball seat pin is fixed inside the upper ball seat (1), and the ball seat pin passes through the hanging tube (4).

3. The hanging device of the single-arm box girder bridge erecting machine according to claim 2, characterized in that: The walking mechanism comprises a plurality of upper roller trolleys (7), and the plurality of upper roller trolleys (7) are symmetrically mounted on the bottom surface of the C-shaped frame (5), and a plurality of lower roller trolleys (9) are mounted on both inner sides of the C-shaped frame (5).

4. The hanging device of the single-arm box girder bridge erecting machine according to claim 3, characterized in that: Each of the driving mechanisms comprises a driving motor (11), and each of the driving motors (11) is fixedly mounted on the bottom surface of the C-shaped frame (5), a driving reducer (10) is fixedly mounted on the bottom surface of each of the driving motors (11), and the output shaft of each of the driving motors (11) is connected to the driving reducer (10) at a corresponding position, and the output end of each of the driving reducers (10) is connected to the large gear ring (6) at a corresponding position.

5. The hanging device of the single-arm box girder bridge erecting machine according to claim 4, characterized in that: A plurality of top guide wheel assemblies (3) are symmetrically mounted on both outer sides of the lower ball seat (2), and a plurality of bottom guide wheel assemblies (8) are mounted on both inner sides of the C-shaped frame (5).

6. The hanging device of the single-arm box girder bridge erecting machine according to claim 5, characterized in that: Each bottom guide wheel assembly (8) is arranged between the upper roller trolley (7) and the lower roller trolley (9) on the same side.

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