CN213867381U - Adjustable lifting device for middle supporting leg for bridge girder erection machine - Google Patents
Adjustable lifting device for middle supporting leg for bridge girder erection machine Download PDFInfo
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- CN213867381U CN213867381U CN202022314745.9U CN202022314745U CN213867381U CN 213867381 U CN213867381 U CN 213867381U CN 202022314745 U CN202022314745 U CN 202022314745U CN 213867381 U CN213867381 U CN 213867381U
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- fixedly connected
- bevel gear
- lifting device
- landing leg
- worm
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Abstract
The utility model provides a lifting device of landing leg in with adjustable bridge girder erection machine is used belongs to bridge girder erection machine equipment technical field, and this lifting device of landing leg in with adjustable bridge girder erection machine includes the backup pad, the last fixed surface of base is connected with the pneumatic cylinder, the inside swing joint of pneumatic cylinder has the lifter, defeated oil pipe keeps away from the one end fixedly connected with hydraulic pump of pneumatic cylinder one side fixedly connected with driving motor of backup pad upper surface, first driven bevel gear's one end fixedly connected with second reduction gear is kept away from to the reduction gear input shaft, the internal surface fixedly connected with transmission shaft of second driven bevel gear, the bottom fixedly connected with worm of transmission shaft, the surface toothing of worm has the worm wheel. This elevating gear of landing leg in with adjustable bridging machine can alleviate the burden of preceding landing leg and back landing leg when removing, makes bridging machine remove more laborsavingly, can carry out the position fine setting, and the landing leg is placed the position more accurate in making.
Description
Technical Field
The utility model belongs to the technical field of bridge girder erection machine equipment, concretely relates to elevating gear of landing leg in with adjustable bridge girder erection machine is used.
Background
In the construction process of the bridge girder erection machine, the main girder erection of the bridge girder erection machine is mainly carried out by the front supporting leg, the middle supporting leg and the rear supporting leg, so that the main girder is kept in a horizontal state, the height of the supporting legs needs to be adjusted to meet the gradient erection requirement of a line, and the structure of the middle supporting leg is mainly divided into height non-adjustable type and height adjustable type.
Landing leg structure when going up and down in the adjustable that uses in the existing market, need fix elevating gear subaerial, it is inconvenient to install and use, and elevating gear and well landing leg can not remove, and landing leg and back landing leg drive move before needing, remove inconveniently.
Disclosure of Invention
An object of the utility model is to provide a well landing leg's elevating gear with adjustable frame bridge crane aims at solving among the prior art installation and uses inconveniently, and elevating gear and well landing leg can not remove, needs preceding landing leg and back landing leg drive to remove, removes inconvenient problem.
In order to achieve the above object, the utility model provides a following technical scheme: a lifting device of an adjustable middle supporting leg for a bridge girder erection machine comprises a supporting plate, wherein a base is fixedly connected to the middle of the upper surface of the supporting plate, a hydraulic cylinder is fixedly connected to the upper surface of the base, a lifting rod is movably connected to the inside of the hydraulic cylinder, an oil delivery pipe is fixedly connected to the bottom end of the outer surface of the hydraulic cylinder, a hydraulic pump is fixedly connected to one end, away from the hydraulic cylinder, of the oil delivery pipe, an oil tank is fixedly connected to one side of the hydraulic pump through an oil pipe, a driving motor is fixedly connected to one side of the upper surface of the supporting plate, a first driving bevel gear is fixedly connected to an output shaft of the driving motor, a first driven bevel gear is meshed to the outer surface of the first driving bevel gear, a reducer input shaft is fixedly connected to the inner surface of the first driven bevel gear, a second-stage reducer is fixedly connected to one end, away from the first driven bevel gear, of the reducer input shaft, one side of the secondary speed reducer is fixedly connected with a speed reducer output shaft, one end, far away from the secondary speed reducer, of the speed reducer output shaft is fixedly connected with a second driving bevel gear, a second driven bevel gear is meshed with the outer surface of the second driving bevel gear, a transmission shaft is fixedly connected to the inner surface of the second driven bevel gear, a worm is fixedly connected to the bottom end of the transmission shaft, and a worm wheel is meshed with the outer surface of the worm.
In order to make this kind of lifting device of landing leg connect reliable and stable with adjustable for bridging machine, as the utility model relates to an it is preferred, the top fixedly connected with connecting block of lifter, landing leg in the top fixedly connected with of connecting block.
In order to make this kind of elevating gear control of landing leg convenient, accurate in with adjustable bridge girder erection machine, as the utility model relates to an it is preferred, the upper surface of backup pad is close to driving motor's right side fixedly connected with controller.
In order to make this kind of elevating gear of landing leg removes laborsavingly with adjustable bridge crane, as the utility model relates to an it is preferred, the internal fixed surface of worm wheel is connected with the pivot, the equal fixedly connected with wheel in both ends of pivot surface, the wheel has four.
In order to make this kind of elevating gear operation safe and reliable of landing leg in with adjustable for frame bridge crane, as the utility model relates to an it is preferred, the lower fixed surface of backup pad is connected with the pillar, the pillar has eight, eight the internal surface of pillar all with pivot swing joint, the side fixedly connected with protective housing of the inboard pillar of wheel.
In order to make this kind of elevating gear's of landing leg in adjustable for bridging machine transmission shaft firm in connection, do not influence the rotation again, as the utility model relates to an it is preferred, the fixed surface of transmission shaft is connected with the bearing, the bearing has two, one of them the surface of bearing with have the inside fixed connection of backup pad, wherein another the surface of bearing and the top fixed connection of protective housing.
Compared with the prior art, the beneficial effects of the utility model are that:
1. this elevating gear of well landing leg with adjustable bridge girder erection machine, through driving motor, the secondary reducer, the transmission shaft, worm wheel and worm cooperation set up, when needs remove well landing leg, start driving motor, driving motor is through first initiative bevel gear and first driven bevel gear with power transmission to secondary reducer, after the speed reduction and the increase torque are carried out through the secondary reducer, transmit power to the transmission shaft through second initiative bevel gear and second driven bevel gear, the transmission shaft drives the worm wheel through the worm and rotates, the worm wheel drives the wheel through the pivot and rolls, thereby make elevating gear and well landing leg remove, alleviate the burden of preceding landing leg and back landing leg when removing, it is more laborsaving to make bridge girder erection machine remove, well landing leg and elevating gear can carry out the position fine setting through the removal, it is more accurate to make well landing leg place the position.
2. This elevating gear of well landing leg with adjustable bridging machine, through the pneumatic cylinder, the lifter, the hydraulic pump, defeated oil pipe and oil tank cooperation setting, when needs rise well landing leg, start the hydraulic pump, carry the hydraulic oil in the oil tank to the pneumatic cylinder in through defeated oil pipe, make the lifter rise, when the landing leg descends in needs, close the hydraulic pump, open the seal valve in the pneumatic cylinder, make the hydraulic oil in the pneumatic cylinder flow back to the incasement, thereby make the lifter descend, it is convenient stable to go up and down, elevating gear and well landing leg link together, need not follow new fixed connection after removing, high use efficiency.
Drawings
The accompanying drawings 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 is a schematic view of an axial measurement structure of the present invention;
fig. 2 is a schematic top view of the present invention;
fig. 3 is a schematic view of the structure of the present invention;
fig. 4 is a schematic view of the axial measurement structure of the middle worm of the present invention.
In the figure: 1. a support plate; 2. a base; 3. a hydraulic cylinder; 4. a lifting rod; 5. connecting blocks; 6. a middle support leg; 7. an oil delivery pipe; 8. a hydraulic pump; 9. an oil tank; 10. a drive motor; 11. a controller; 12. a first drive bevel gear; 13. a first driven bevel gear; 14. a reducer input shaft; 15. a secondary speed reducer; 16. a reducer output shaft; 17. a second drive bevel gear; 18. a second driven bevel gear; 19. a drive shaft; 20. a worm; 21. a worm gear; 22. a rotating shaft; 23. a bearing; 24. a wheel; 25. a pillar; 26. a protective shell.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Examples
Referring to fig. 1-4, the present invention provides the following technical solutions: a lifting device of an adjustable middle supporting leg for a bridge girder erection machine comprises a supporting plate 1, a base 2 is fixedly connected to the middle of the upper surface of the supporting plate 1, a hydraulic cylinder 3 is fixedly connected to the upper surface of the base 2, a lifting rod 4 is movably connected to the inside of the hydraulic cylinder 3, an oil delivery pipe 7 is fixedly connected to the bottom end of the outer surface of the hydraulic cylinder 3, a hydraulic pump 8 is fixedly connected to one end, away from the hydraulic cylinder 3, of the oil delivery pipe 7, an oil tank 9 is fixedly connected to one side of the hydraulic pump 8 through an oil pipe, a driving motor 10 is fixedly connected to one side of the upper surface of the supporting plate 1, a first driving bevel gear 12 is fixedly connected to an output shaft of the driving motor 10, a first driven bevel gear 13 is meshed to the outer surface of the first driving bevel gear 12, a reducer input shaft 14 is fixedly connected to the inner surface of the first driven bevel gear 13, a second-stage reducer 15 is fixedly connected to one end, away from the first driven bevel gear 13, of the reducer input shaft 14, one side of the secondary reducer 15 is fixedly connected with a reducer output shaft 16, one end of the reducer output shaft 16, which is far away from the secondary reducer 15, is fixedly connected with a second driving bevel gear 17, the outer surface of the second driving bevel gear 17 is engaged with a second driven bevel gear 18, the inner surface of the second driven bevel gear 18 is fixedly connected with a transmission shaft 19, the bottom end of the transmission shaft 19 is fixedly connected with a worm 20, and the outer surface of the worm 20 is engaged with a worm wheel 21.
In the embodiment of the present invention, through the cooperation of the driving motor 10, the secondary speed reducer 15, the transmission shaft 19, the worm wheel 21 and the worm 20, when the middle leg 6 needs to be moved, the driving motor 10 is started, the driving motor 10 transmits power to the secondary speed reducer 15 through the first driving bevel gear 12 and the first driven bevel gear 13, after the speed reduction and torque increase are performed through the secondary speed reducer 15, the power is transmitted to the transmission shaft 19 through the second driving bevel gear 17 and the second driven bevel gear 18, the transmission shaft 19 drives the worm wheel 21 to rotate through the worm 20, the worm wheel 21 drives the wheel 24 to roll through the rotating shaft 22, so that the lifting device and the middle leg 6 are moved, the burden of the front leg and the rear leg is reduced when the movement is performed, the bridge erecting machine is moved more laborsavingly, the middle leg 6 and the lifting device can perform position fine adjustment through the movement, so that the position of the middle leg 6 is more accurately placed, through the cooperation setting of pneumatic cylinder 3, lifter 4, hydraulic pump 8, defeated oil pipe 7 and oil tank 9, when needs rise well landing leg 6, start hydraulic pump 8, carry the hydraulic oil in the oil tank 9 to pneumatic cylinder 3 in through defeated oil pipe 7, make lifter 4 rise, when needs well landing leg 6 descends, close hydraulic pump 8, open the seal valve in pneumatic cylinder 3, make the hydraulic oil in the pneumatic cylinder 3 flow back to in the oil tank 9, thereby make lifter 4 descend, it is convenient stable to go up and down, elevating gear and well landing leg 6 link together, need not follow new fixed connection after moving, high use efficiency.
Specifically, the top end of the lifting rod 4 is fixedly connected with a connecting block 5, and the top end of the connecting block 5 is fixedly connected with a middle supporting leg 6.
In this embodiment: the lifting rod 4 is connected with the middle supporting leg 6 through the connecting block 5, and the connection is stable and reliable.
Specifically, a controller 11 is fixedly connected to the right side of the upper surface of the support plate 1 close to the driving motor 10.
In this embodiment: the controller 11 controls the start and stop of the driving motor 10 and the hydraulic pump 8, and the control is convenient and accurate.
Specifically, the inner surface of the worm wheel 21 is fixedly connected with a rotating shaft 22, two ends of the outer surface of the rotating shaft 22 are fixedly connected with wheels 24, and the number of the wheels 24 is four.
In this embodiment: the wheels 24 are driven to roll through the rotating shaft 22, so that the lifting device and the middle supporting leg 6 can move, and the movement is labor-saving.
Specifically, the lower surface of the supporting plate 1 is fixedly connected with eight supporting columns 25, the inner surfaces of the eight supporting columns 25 are movably connected with the rotating shaft 22, and the side surface of the supporting column 25 at the inner side of the wheel 24 is fixedly connected with a protective shell 26.
In this embodiment: the rotating shaft 22 is fixed through the support 25, the fixing is firm, the worm wheel 21 and the worm 20 can be protected by the protective shell 26, the collision of ground sundries is avoided, and the operation is safe and reliable.
Specifically, the outer surface of the transmission shaft 19 is fixedly connected with two bearings 23, the outer surface of one bearing 23 is fixedly connected with the inside of the supporting plate 1, and the outer surface of the other bearing 23 is fixedly connected with the top end of the protective shell 26.
In this embodiment: the support plate 1 is connected with the transmission shaft 19 through the bearing 23, and the connection is firm without influencing the rotation of the transmission shaft 19.
The electrical components presented in the document are all electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device controlled by a computer or the like.
The utility model discloses a theory of operation and use flow: when the lifting device of the adjustable middle supporting leg for the bridge girder erection machine is used and needs to move the middle supporting leg 6, the driving motor 10 is started, the driving motor 10 transmits power to the secondary speed reducer 15 through the first driving bevel gear 12 and the first driven bevel gear 13, the power is transmitted to the transmission shaft 19 through the second driving bevel gear 17 and the second driven bevel gear 18 after being reduced and increased in torque through the secondary speed reducer 15, the transmission shaft 19 drives the worm wheel 21 to rotate through the worm 20, the worm wheel 21 drives the wheels 24 to roll through the rotating shaft 22, so that the lifting device and the middle supporting leg 6 move, the burden of the front supporting leg and the rear supporting leg is lightened when the lifting device moves, the bridge girder erection machine is more labor-saving to move, the middle supporting leg 6 and the lifting device can be finely adjusted in position through moving, the placing position of the middle supporting leg 6 is more accurate, when the middle supporting leg 6 needs to be lifted, the hydraulic pump 8 is started, hydraulic oil in the oil tank 9 is conveyed into the hydraulic cylinder 3 through the oil conveying pipe 7, the lifting rod 4 is made to ascend, when the middle supporting leg 6 descends as required, the hydraulic pump 8 is closed, the sealing valve in the hydraulic cylinder 3 is opened, the hydraulic oil in the hydraulic cylinder 3 flows back into the oil tank 9, the lifting rod 4 descends, the lifting is convenient and stable, the lifting device is connected with the middle supporting leg 6, the lifting device does not need to be fixedly connected after being moved, and the use efficiency is high.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. 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 (6)
1. The utility model provides a lifting device of landing leg in with adjustable for bridging machine, includes backup pad (1), its characterized in that: the middle part of the upper surface of the supporting plate (1) is fixedly connected with a base (2), the upper surface of the base (2) is fixedly connected with a hydraulic cylinder (3), the inner part of the hydraulic cylinder (3) is movably connected with a lifting rod (4), the bottom end of the outer surface of the hydraulic cylinder (3) is fixedly connected with an oil delivery pipe (7), one end of the oil delivery pipe (7) far away from the hydraulic cylinder (3) is fixedly connected with a hydraulic pump (8), one side of the hydraulic pump (8) is fixedly connected with an oil tank (9) through an oil pipe, one side of the upper surface of the supporting plate (1) is fixedly connected with a driving motor (10), an output shaft of the driving motor (10) is fixedly connected with a first driving bevel gear (12), the outer surface of the first driving bevel gear (12) is meshed with a first driven bevel gear (13), and the inner surface of the first driven bevel gear (13) is fixedly connected with a speed reducer input shaft (14), one end fixedly connected with secondary reducer (15) of first driven bevel gear (13) is kept away from in reduction gear input shaft (14), one side fixedly connected with reduction gear output shaft (16) of secondary reducer (15), one end fixedly connected with second drive bevel gear (17) of secondary reducer (15) is kept away from in reduction gear output shaft (16), the surface meshing of second drive bevel gear (17) has second driven bevel gear (18), the internal surface fixedly connected with transmission shaft (19) of second driven bevel gear (18), the bottom fixedly connected with worm (20) of transmission shaft (19), the surface meshing of worm (20) has worm wheel (21).
2. The adjustable middle leg lifting device for the bridge erecting machine according to claim 1, wherein: the top fixedly connected with connecting block (5) of lifter (4), landing leg (6) in the top fixedly connected with of connecting block (5).
3. The adjustable middle leg lifting device for the bridge erecting machine according to claim 1, wherein: the upper surface of the supporting plate (1) is fixedly connected with a controller (11) close to the right side of the driving motor (10).
4. The adjustable middle leg lifting device for the bridge erecting machine according to claim 1, wherein: the internal surface fixedly connected with pivot (22) of worm wheel (21), the equal fixedly connected with wheel (24) in both ends of pivot (22) surface, wheel (24) have four.
5. The adjustable middle leg lifting device for bridge erecting machine according to claim 4, wherein: the lower surface fixedly connected with pillar (25) of backup pad (1), pillar (25) have eight, eight the internal surface of pillar (25) all with pivot (22) swing joint, the side fixedly connected with protective housing (26) of inboard pillar (25) of wheel (24).
6. The adjustable middle leg lifting device for the bridge erecting machine according to claim 5, wherein: the outer surface of transmission shaft (19) is fixedly connected with bearing (23), bearing (23) have two, one of them the surface of bearing (23) with have the inside fixed connection of backup pad (1), wherein another the surface of bearing (23) and the top fixed connection of protective housing (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022314745.9U CN213867381U (en) | 2020-10-17 | 2020-10-17 | Adjustable lifting device for middle supporting leg for bridge girder erection machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022314745.9U CN213867381U (en) | 2020-10-17 | 2020-10-17 | Adjustable lifting device for middle supporting leg for bridge girder erection machine |
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| Publication Number | Publication Date |
|---|---|
| CN213867381U true CN213867381U (en) | 2021-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022314745.9U Active CN213867381U (en) | 2020-10-17 | 2020-10-17 | Adjustable lifting device for middle supporting leg for bridge girder erection machine |
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| CN (1) | CN213867381U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114032783A (en) * | 2021-12-10 | 2022-02-11 | 广西北投交通养护科技集团有限公司 | Supporting leg supporting device of bridge girder erection machine |
-
2020
- 2020-10-17 CN CN202022314745.9U patent/CN213867381U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114032783A (en) * | 2021-12-10 | 2022-02-11 | 广西北投交通养护科技集团有限公司 | Supporting leg supporting device of bridge girder erection machine |
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