CN211772923U - Cross-span longitudinal moving device applied to bridge girder erection machine - Google Patents
Cross-span longitudinal moving device applied to bridge girder erection machine Download PDFInfo
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- CN211772923U CN211772923U CN201921705278.3U CN201921705278U CN211772923U CN 211772923 U CN211772923 U CN 211772923U CN 201921705278 U CN201921705278 U CN 201921705278U CN 211772923 U CN211772923 U CN 211772923U
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Abstract
The utility model discloses a be applied to crossing of bridging machine and stride to indulge and move device belongs to the engineering machine tool field, include: the support comprises a rack, a support leg and a driving shaft, wherein the rack is fixed on the support leg through a pin shaft penetrating through a pin shaft hole in the rack, a driving shaft mounting hole is formed in the lower part of the rack, and the driving shaft is rotatably connected inside the driving shaft mounting hole; the driving assembly is fixed on the outer side wall of the rack, and an output shaft of the driving assembly is fixedly connected with the driving shaft; the driven roller assembly is arranged on the inner side wall of the rack through a pin shaft assembly and can rotate corresponding to the axis of the pin shaft, and the driven roller assembly is meshed with a gear sleeved on the outer ring of the driving shaft so as to be in transmission connection with the driving shaft; the longitudinal movement of the main beam of the bridge girder erection machine is realized by adopting a roller driving mode, rolling friction rather than sliding friction is adopted between the main beam and the longitudinal movement mechanism, the requirement on synchronism is low, and the risk of overturning the supporting legs does not exist.
Description
Technical Field
The utility model relates to an engineering machine tool technical field particularly, relates to a stride and indulge device of moving for crossing of bridge girder erection machine.
Background
The cross-span longitudinal movement of the existing bridge girder erection machine mainly adopts an oil cylinder pushing mode, namely, an upper supporting leg is adjusted, a lower supporting leg is adjusted, a jacking oil cylinder and a supporting leg are matched, the upper part of the upper supporting leg is adjusted to be connected with the supporting leg, the lower part of the upper supporting leg is movably connected with the lower supporting leg, the fixed end of the jacking oil cylinder is fixed with the adjusting supporting seat, the movable end of the jacking oil cylinder is fixed with the upper supporting leg, the jacking oil cylinder is driven in the vertical direction, the distance between the upper supporting leg and the lower supporting leg is adjusted to be changed, so that the supporting leg is lifted, then, a set of oil cylinder pushing device is.
When the method is adopted, sliding friction is formed between the main beam and the supporting legs, so that the oil cylinder needs to overcome large friction force, the synchronism between the oil cylinder and the oil cylinder is difficult to control in the pushing process, and when the synchronous error is large, the thrust force of the oil cylinder can be far greater than the friction force, so that the top end of the supporting leg is easily subjected to large oil cylinder thrust force, and the risk of overturning the supporting leg is generated.
Therefore, the over-span longitudinal moving device applied to the bridge girder erection machine is provided.
Disclosure of Invention
A primary object of the present invention is to provide a crossing-over longitudinal-moving device for bridge girder erection machine, which solves the problems of the prior art.
In order to achieve the above object, the utility model provides a be applied to crossing of bridging machine and indulge device that moves, include: the support comprises a rack, a support leg and a driving shaft, wherein the rack is fixed on the support leg through a pin shaft penetrating through a pin shaft hole in the rack, a driving shaft mounting hole is formed in the lower part of the rack, and the driving shaft is rotatably connected inside the driving shaft mounting hole; the driving assembly is fixed on the outer side wall of the rack, and an output shaft of the driving assembly is fixedly connected with the driving shaft; the driven roller assembly is arranged on the inner side wall of the rack through a pin shaft assembly and can rotate corresponding to the axis of the pin shaft, and the driven roller assembly is meshed with a gear sleeved on the outer ring of the driving shaft so as to be in transmission connection with the driving shaft; when the main beam is placed in the middle of the driven roller assembly, the bottom of the main beam and the top surface of the lower longitudinal beam can be in rolling contact with the driven roller assembly.
Further, the driven roller assembly comprises a lower roller, an upper roller and a transition gear, and gears are sleeved on outer rings of the lower roller and the upper roller;
the upper roller is sleeved on an upper pin shaft of the frame, can rotate along the central axis of the upper pin shaft, and can be in rolling contact with the top surface of the lower longitudinal beam;
the lower idler wheel is sleeved on a lower pin shaft of the rack, the lower idler wheel can rotate along the central axis of the upper pin shaft, the lower idler wheel can be in rolling contact with the bottom of the main beam, and a gear on the outer ring of the lower idler wheel is meshed with a gear sleeved on the outer ring of the driving shaft so as to enable the lower idler wheel to be in transmission connection with the driving shaft;
the transition gear is sleeved on a transition pin shaft of the rack and can rotate along the central axis of the transition pin shaft, and the transition gear is meshed with gears sleeved on the lower roller and the outer ring of the upper roller so as to enable the lower roller to be in transmission connection with the upper roller.
Further, the driving assembly comprises a motor and a speed reducer, and an output shaft of the motor is coaxially connected with an output shaft of the speed reducer.
Further, the size of the lower roller is larger than that of the upper roller.
Use the technical scheme of the utility model, beneficial effect is: the over-span longitudinal movement mechanism applied to the bridge girder erection machine realizes longitudinal movement of the main girder of the bridge girder erection machine in a roller driving mode, rolling friction rather than sliding friction is adopted between the main girder and the longitudinal movement mechanism, the requirement on synchronism is low, and the risk of overturning of supporting legs does not exist.
Drawings
The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 shows an installation structure of an over-span longitudinal moving device applied to a bridge girder erection machine;
FIG. 2 is a structural diagram of a longitudinal moving main beam of the cross-span longitudinal moving device applied to a bridge girder erection machine;
FIG. 3 is a block diagram showing the movement of a leg of an over-span longitudinal movement device applied to a bridge girder erection machine;
FIG. 4 is an overall block diagram of an overspan longitudinal movement device applied to a bridge girder erection machine;
FIG. 5 shows a frame structure diagram of an over-span longitudinal moving device applied to a bridge girder erection machine
FIG. 6 shows a drive assembly configuration for an over-span longitudinal movement device for use with a bridge erecting machine.
Wherein the figures include the following reference numerals:
10. a frame; 12. an upper pin shaft; 13. a transition pin shaft; 14. a lower pin shaft; 15. a pin shaft hole; 16. a driving shaft mounting hole; 20. a drive assembly; 21. a speed reducer; 22. a motor; 30. a driven roller assembly; 31. a lower roller; 32. an upper roller; 33. a transition gear; 34. a drive shaft; 40. a main beam; 41a, a top surface of the lower longitudinal beam; 50. and (7) supporting legs.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1 to 6, the utility model provides a be applied to crossing of bridge girder erection machine and indulge and move device, include: the device comprises a rack 10, wherein the rack 10 is fixed on a supporting leg 50 through a pin shaft penetrating through a pin shaft hole 15 on the rack 10, a driving shaft mounting hole 16 is formed in the lower part of the rack 10, and a driving shaft 34 is rotatably connected inside the driving shaft mounting hole 16; the driving assembly 20, the driving assembly 20 is fixed on the outer sidewall of the frame 10, the output shaft of the driving assembly 20 is fixedly connected with the driving shaft 34; the driven roller assembly 30 is arranged on the inner side wall of the frame 10 through a pin shaft assembly, the driven roller assembly 30 can rotate along the axis of the corresponding pin shaft, and the driven roller assembly 30 is meshed with a gear sleeved on the outer ring of the driving shaft 34 so that the driven roller assembly 30 is in transmission connection with the driving shaft 34; wherein, when the main beam 40 is placed in the middle of the driven roller assembly 30, the bottom of the main beam 40 and the top surface 41a of the lower side member can be in rolling contact with the driven roller assembly 30.
By applying the technical scheme of the embodiment, the driven roller assembly 30 is installed on the inner side wall of the frame 10 through the pin shaft assembly, the main beam 40 is placed in the middle of the driven roller assembly 30, and the support legs 50 vertically extend and retract to adjust the height of the driven roller assembly 30;
when the bottom of the main beam 40 is in contact with the driven roller assembly 30, the driving assembly 20 is started, so that the driving shaft 34 which rotates synchronously drives the driven roller assembly 30 to rotate along the axis of the corresponding pin shaft, the main beam 40 of the bridge girder erection machine longitudinally moves due to rolling friction, and the longitudinal movement of the main beam 40 of the bridge girder erection machine is realized in a roller driving mode, so that the requirement on synchronism relative to sliding friction in the prior art is reduced through the rolling friction between the main beam 40 and the driven roller assembly 30, and the risk of overturning the supporting legs 50 is effectively avoided;
when the lower longitudinal beam top surface 41a contacts with the driven roller assembly 30, the driving assembly 20 is started, so that the driving shaft 34 rotating synchronously drives the driven roller assembly 30 to rotate along the axis of the corresponding pin shaft, and the supporting leg 50 moves longitudinally due to rolling friction, thereby effectively improving the convenience of longitudinal movement of the supporting leg 50.
For the specific structure of the driven roller assembly 30, as shown in fig. 4, the driven roller assembly 30 includes a lower roller 31, an upper roller 32 and a transition gear 33, and the outer rings of the lower roller 31 and the upper roller 32 are both sleeved with gears; the upper roller 32 is sleeved on the upper pin shaft 12 of the frame 10, the upper roller 32 can rotate along the central axis of the upper pin shaft 12, and the upper roller 32 can be in rolling contact with the top surface 41a of the lower longitudinal beam; the lower roller 31 is sleeved on the lower pin shaft 14 of the rack 10, the lower roller 31 can rotate along the central axis of the upper pin shaft 12, the lower roller 31 can be in rolling contact with the bottom of the main beam 40, and a gear on the outer ring of the lower roller 31 is meshed with a gear sleeved on the outer ring of the driving shaft 34, so that the lower roller 31 is in transmission connection with the driving shaft 34; the transition gear 33 is sleeved on the transition pin shaft 13 of the frame 10, the transition gear 33 can rotate along the central axis of the transition pin shaft 13, and the transition gear 33 is engaged with the gears sleeved on the outer rings of the lower roller 31 and the upper roller 32, so that the lower roller 31 is in transmission connection with the upper roller 32.
According to the structure, when the main beam needs to be longitudinally moved, the top height of each supporting leg 50 is adjusted through vertical extension, so that the main beam 40 is horizontal, the bottom of the main beam 40 is in contact with all the lower rollers 31, the driving assembly 20 is started, the lower rollers 31 synchronously rotate through the meshing of the outer ring gear of the driving shaft 34 and the outer ring gear of the lower rollers 31, the main beam 40 is driven to move forwards, and the upper rollers 32 are in an idle running state at the moment.
When a single leg 50 needs to be moved, the leg 50 needing to be moved is retracted, the lower longitudinal beam top surface 41a of the main beam 40 is contacted with the upper roller 32, so that the leg 50 is hung upside down on the main beam 40, the driving assembly 20 on the machine frame 10 connected with the leg 50 is driven independently, the upper roller 32 is driven to rotate through the outer ring gear of the driving shaft 344, the outer ring gear of the lower roller 31, the transition gear 33 and the outer ring gear of the upper roller 32, and the leg 50 is driven to move longitudinally, and the lower roller 31 is in an idle running state.
As shown in fig. 6, the driving assembly 20 includes a motor 22 and a speed reducer 21, an output shaft of the motor 22 is coaxially connected to an output shaft of the speed reducer 21, and the output shaft of the speed reducer 21 is coaxially and fixedly connected to a driving shaft 34, so that the motor 22 is started to rotate the driving shaft 34 via the speed reducer 21.
Specifically, the size of lower roller 31 is greater than the size of upper roller 32, and this kind of design can improve the stability that lower roller 31 supported girder 40 effectively when reducing the mechanism's dead weight that indulges.
The following are some component models of this embodiment:
the motor 22: Y80M 1-2;
speed reducer 21: F37.
from the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects:
1. the requirement on the synchronism of sliding friction in the prior art is reduced through the rolling friction between the main beam and the driven roller assemblies, and the risk of overturning the supporting legs is effectively avoided;
2. the contact of the top surface of the lower longitudinal beam of the main beam and the upper roller makes the landing legs hang upside down on the main beam, the motor on the rack connected with the landing legs is driven independently, the upper roller is driven to rotate by the outer ring gear of the driving shaft, the outer ring gear of the lower roller, the transition gear and the outer ring gear of the upper roller, so that the landing legs move longitudinally due to rolling friction, and the convenience of longitudinal movement of the landing legs is improved effectively.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. An over-span longitudinal moving device applied to a bridge girder erection machine is characterized by comprising:
the device comprises a rack (10), wherein the rack (10) is fixed on a supporting leg (50) through a pin shaft penetrating through a pin shaft hole (15) in the rack (10), a driving shaft mounting hole (16) is formed in the lower part of the rack (10), and a driving shaft (34) is rotatably connected inside the driving shaft mounting hole (16);
the driving assembly (20), the driving assembly (20) is fixed on the outer side wall of the rack (10), and an output shaft of the driving assembly (20) is fixedly connected with the driving shaft (34);
the driven roller assembly (30) is arranged on the inner side wall of the rack (10) through a pin shaft assembly, the driven roller assembly (30) can rotate along the axis of the corresponding pin shaft, and the driven roller assembly (30) is meshed with a gear sleeved on the outer ring of the driving shaft (34) so that the driven roller assembly (30) is in transmission connection with the driving shaft (34);
when the main beam (40) is placed in the middle of the driven roller assembly (30), the bottom of the main beam (40) and the top surface (41a) of the lower longitudinal beam can be in rolling contact with the driven roller assembly (30).
2. The cross-span longitudinal movement device applied to the bridge girder erection machine is characterized in that: the driven roller assembly (30) comprises a lower roller (31), an upper roller (32) and a transition gear (33), wherein gears are sleeved on the outer rings of the lower roller (31) and the upper roller (32);
the upper roller (32) is sleeved on an upper pin shaft (12) of the rack (10), the upper roller (32) can rotate along the central axis of the upper pin shaft (12), and the upper roller (32) can be in rolling contact with the top surface (41a) of the lower longitudinal beam;
the lower roller (31) is sleeved on a lower pin shaft (14) of the rack (10), the lower roller (31) can rotate along the central axis of the upper pin shaft (12), the lower roller (31) can be in rolling contact with the bottom of the main beam (40), and a gear on the outer ring of the lower roller (31) is meshed with a gear sleeved on the outer ring of the driving shaft (34) so that the lower roller (31) is in transmission connection with the driving shaft (34);
transition gear (33) cover is established on transition round pin axle (13) of frame (10), just transition gear (33) can be followed the central axis of transition round pin axle (13) and rotated, transition gear (33) and lower gyro wheel (31), the gear engagement of establishing of the outer lane cover of last gyro wheel (32) to make lower gyro wheel (31) and last gyro wheel (32) transmission be connected.
3. The cross-span longitudinal movement device applied to the bridge girder erection machine is characterized in that: the driving assembly (20) comprises a motor (22) and a speed reducer (21), and an output shaft of the motor (22) is coaxially connected with an output shaft of the speed reducer (21).
4. The cross-span longitudinal movement device applied to the bridge girder erection machine is characterized in that: the size of the lower roller (31) is larger than that of the upper roller (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921705278.3U CN211772923U (en) | 2019-10-12 | 2019-10-12 | Cross-span longitudinal moving device applied to bridge girder erection machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921705278.3U CN211772923U (en) | 2019-10-12 | 2019-10-12 | Cross-span longitudinal moving device applied to bridge girder erection machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211772923U true CN211772923U (en) | 2020-10-27 |
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ID=72933425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921705278.3U Active CN211772923U (en) | 2019-10-12 | 2019-10-12 | Cross-span longitudinal moving device applied to bridge girder erection machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211772923U (en) |
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2019
- 2019-10-12 CN CN201921705278.3U patent/CN211772923U/en active Active
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