CN114289360A - Guide tracked bridging machine self-cleaning device - Google Patents
Guide tracked bridging machine self-cleaning device Download PDFInfo
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- CN114289360A CN114289360A CN202111619065.0A CN202111619065A CN114289360A CN 114289360 A CN114289360 A CN 114289360A CN 202111619065 A CN202111619065 A CN 202111619065A CN 114289360 A CN114289360 A CN 114289360A
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- guide rail
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- guide wheel
- transmission frame
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Abstract
The invention discloses an automatic cleaning device of a guide rail type bridge girder erection machine, and particularly relates to the technical field of bridge girder erection auxiliary equipment, which comprises a cross beam, wherein a guide rail is arranged on the top surface of the cross beam, a transmission frame is connected inside the guide rail in a sliding manner, a connecting plate is fixedly connected to one side of the transmission frame, a concave cavity is arranged inside the connecting plate, and a convex rotating rod is arranged in the inner cavity of the concave cavity in a matching manner; according to the invention, the transmission frame drives the connecting plate to move together, the cleaning roller is in rolling fit with the top surface of the cross beam, the servo motor I drives the protruding rotating rod and drives the cam and the mounting block to rotate, and the cleaning steel brush cleans the inner walls of the two sides of the guide rail, so that the dirt on the inner wall of the guide rail can be cleaned in a reciprocating manner, and the cleaning effect in the guide rail is more thorough; one end of the reinforcing rope is attached to the outer surfaces of the first guide wheel, the second guide wheel and the third guide wheel, so that the reinforcing rope is guided, the tightness of the reinforcing rope when the prefabricated workpiece is connected is improved, and the phenomenon that the surface of the reinforcing rope is scratched by cutting is avoided.
Description
Technical Field
The invention relates to the technical field of bridge erecting auxiliary equipment, in particular to an automatic cleaning device for a guide rail type bridge erecting machine.
Background
The bridge girder erection machine is equipment for placing prefabricated beam pieces on prefabricated piers, belongs to the category of cranes, and has the main function of lifting the beam pieces, then conveying the beam pieces to the proper positions and then putting down the beam pieces.
Fig. 5 is a schematic structural diagram of the prior art, which is easy to implement and operate by changing positions of a lower guide beam movable leg and a bridge crane of the bridge girder erection machine during span-changing erection, but in the existing bridge girder erection machine, a guide rail of the bridge girder erection machine is not cleaned, so that the moving speed of the bridge girder erection machine is influenced to a certain extent, and the prefabricated workpiece is not convenient to move.
Disclosure of Invention
The invention aims to provide an automatic cleaning device of a guide rail type bridge girder erection machine, a transmission frame drives a connecting plate to move together, a cleaning roller is in rolling fit with the top surface of a cross beam, the top surface of the cross beam is cleaned in a rolling way while the transmission frame transmits, a servo motor drives a protruding rotating rod and drives a cam and a connecting rod to move, the connecting rod and an installation block rotate, and a cleaning steel brush scrapes the inner walls of two sides of a guide rail, so that the dirt on the inner walls of the guide rail can be cleaned in a reciprocating way, the cleaning effect in the guide rail is more thorough, the transmission effect of the transmission frame is ensured, the normal construction progress of a project is not influenced, and the problems in the background technology are solved.
The invention can be realized by the following technical scheme: a guide rail type automatic cleaning device for a bridge girder erection machine comprises a cross beam, wherein a guide rail is arranged on the top surface of the cross beam, a transmission frame is connected to the inner part of the guide rail in a sliding manner, a connecting plate is fixedly connected to one side of the transmission frame, a cavity is formed in the connecting plate, a protruding rotating rod is installed in the cavity in a matching manner, a cleaning roller is sleeved on the outer surface of the protruding rotating rod, a cam is arranged at one end of the protruding rotating rod, a connecting rod is hinged to the inner part of the cam, an installation block is movably installed at one end of the connecting rod, and a cleaning steel brush attached to the inner wall of the guide rail is installed on the surface of one side of the installation block; the both ends of protruding dwang are all rotated and are connected with L shape fixed plate, one of them a side surface mounting of L shape fixed plate has servo motor one, the output shaft tip of servo motor one is fixed with the axle head of protruding dwang, the top surface of connecting plate is equipped with the groove of wearing that is used for L shape fixed plate to pass, the inner wall of cavity is equipped with the guide way, install the guide block on the outer wall of installation piece, guide block and guide way sliding connection.
The invention has further technical improvements that: the top surface of the connecting plate is fixedly provided with a linear cylinder used for pushing the L-shaped fixing plate to move.
The invention has further technical improvements that: and one side of the bottom surface of the cross beam, which is far away from the guide rail, is fixedly connected with two supporting beams for supporting the stability of the cross beam.
The invention has further technical improvements that: the bottom of transmission frame is provided with guiding mechanism, guiding mechanism is including setting up the guide wheel one on the crossbeam bottom surface, one side of guide wheel one is provided with guide wheel two, and the opposite side of guide wheel one is provided with guide wheel three.
The invention has further technical improvements that: two supporting plates are installed at the top of the inner cavity of the transmission frame, one supporting plate is provided with a second servo motor on the surface of one side of the supporting plate, and a winding rod fixedly connected with the end part of an output shaft of the second servo motor is installed between the two supporting plates.
The invention has further technical improvements that: the surface of coiling pole has around having strengthened the rope, strengthen the rope in proper order around establishing on guide wheel one, guide wheel two and guide wheel three, strengthen the terminal fixedly connected with lifting hook of rope, the one end of lifting hook passes guide wheel three and lock joint at the surface of strengthening the rope.
Compared with the prior art, the invention has the following beneficial effects:
1. the transmission frame drives the connecting plate to move together while moving, the cleaning roller is in rolling fit with the top surface of the beam, the top surface of the beam is cleaned while the transmission frame transmits, the servo motor drives the protruding rotating rod and drives the cam and the connecting rod to move, the connecting rod and the mounting block rotate, the cleaning steel brush moves along with the transmission frame and scrapes the inner walls of the two sides of the guide rail, reciprocating cleaning of dirt on the inner walls of the guide rail can be realized, the transmission of the transmission frame is matched, the cleaning effect in the guide rail is more thorough, the transmission effect of the transmission frame is ensured, and therefore the normal construction progress of a project is not influenced;
2. the reinforcing rope winds the outer surface of the prefabricated workpiece for a circle, one end of the reinforcing rope is attached to the outer surfaces of the first guide wheel, the second guide wheel and the third guide wheel, the reinforcing rope is guided, the tightness of the reinforcing rope when the prefabricated workpiece is connected is improved, the phenomenon that the reinforcing rope is cut and rubbed on the surface of the reinforcing rope is avoided, the service life of the reinforcing rope is prolonged, and after the wiring is finished, one end of the lifting hook is sleeved on the surface of the reinforcing rope, so that the connection between the reinforcing rope and the prefabricated workpiece is realized.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic external view of the present invention;
FIG. 2 is an enlarged view of the structure of portion A of FIG. 1 according to the present invention;
FIG. 3 is a schematic view of the structural connection between the protruded rotating rod and the L-shaped fixing plate according to the present invention;
FIG. 4 is a schematic view of the structural connection of the reinforcing cords to the guide mechanism of the present invention;
fig. 5 is a schematic structural diagram of the prior art.
In the figure: 1. a cross beam; 2. a support beam; 3. a guide rail; 4. a transmission frame; 5. a reinforcing cord; 6. a connecting plate; 7. a linear cylinder; 8. penetrating a groove; 9. an L-shaped fixing plate; 10. a concave cavity; 11. a cleaning roller; 12. a rotating rod is protruded; 13. a first servo motor; 14. a cam; 15. mounting blocks; 16. cleaning the steel brush; 17. a support plate; 18. winding the rod; 19. a servo motor II; 20. a first guide wheel; 21. a second guide wheel; 22. a third guide wheel; 23. a hook; 24. a connecting rod.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the embodiments, structures, features and effects according to the present invention will be given with reference to the accompanying drawings and preferred embodiments.
Referring to fig. 1-3, the invention provides an automatic cleaning device of a guide rail type bridge girder erection machine, which comprises a cross beam 1, wherein a guide rail 3 is arranged on the top surface of the cross beam 1, a transmission frame 4 is slidably connected inside the guide rail 3, a connecting plate 6 is fixedly connected to one side of the transmission frame 4, a concave cavity 10 is arranged inside the connecting plate 6, a convex rotating rod 12 is installed in an inner cavity of the concave cavity 10 in a matched manner, a cleaning roller 11 is sleeved on the outer surface of the convex rotating rod 12, a cam 14 is arranged at one end of the convex rotating rod 12, a connecting rod 24 is hinged inside the cam 14, an installation block 15 is movably installed at one end of the connecting rod 24, and a cleaning steel brush 16 attached to the inner wall of the guide rail 3 is installed on the surface of one side of the installation block 15; the both ends of protruding dwang 12 all rotate and are connected with L shape fixed plate 9, one of them one side surface mounting of L shape fixed plate 9 has servo motor 13, and servo motor 13's output shaft tip is fixed with the axle head of protruding dwang 12, and the top surface of connecting plate 6 is equipped with the groove 8 of wearing that is used for L shape fixed plate 9 to pass, and the inner wall of cavity 10 is equipped with the guide way, installs the guide block on the outer wall of installation piece 15, guide block and guide way sliding connection.
Referring to fig. 2, a linear cylinder 7 for pushing an L-shaped fixing plate 9 to move is fixedly installed on the top surface of the connecting plate 6.
When the bridge girder erection machine is used, a prefabricated workpiece reaches the lower part of the transmission frames 4 and is positioned between the two transmission frames 4, after the two ends of the prefabricated workpiece are fixed, the transmission frame 4 at the front end firstly moves, then the other transmission frame 4 slides in the guide rail 3 to realize the transmission of the prefabricated workpiece, the transmission frames 4 drive the connecting plate 6 to move together while moving, in the initial state, the linear cylinder 7 is in a power-off state, the cleaning roller 11 is in rolling fit with the top surface of the cross beam 1, the top surface of the cross beam 1 is in rolling cleaning while the transmission frames 4 transmit, when the top surface of the cross beam 1 is not required to be cleaned, the linear cylinder 7 pushes the L-shaped fixing plate 9 upwards, the cleaning roller 11 enters the cavity 10, and then the cam 14 and the connecting rod 24 are driven to move by the first servo motor 13 while driving the protruding rotating rod 12, and the connecting rod 24 and the mounting block 15 rotate, because the guide block on the installation piece 15 directionally slides in the guide way, for the removal of installation piece 15 provides the outrigger, stability has been increased, clean steel brush 16 trailing motion to scrape the both sides inner wall of guide rail 3, can realize the cleaning of reciprocating to 3 inner wall mud dirt of guide rail, transmission of transmission frame 4 on the cooperation, it is more thorough to make the clear effect in the guide rail 3, transmission frame 4's transmission effect has been guaranteed, thereby not influencing the normal construction progress of engineering.
Referring to fig. 2, a linear cylinder 7 for pushing an L-shaped fixing plate 9 to move is fixedly installed on the top surface of the connecting plate 6.
Referring to fig. 1, two support beams 2 for supporting the cross beam 1 stably are fixedly connected to one side of the bottom surface of the cross beam 1 away from the guide rail 3.
The two supporting beams 2 support the stability of the cross beam 1, and the two supporting beams 2 are installed on the foundation pillar of the foundation and are firmly fixed.
Referring to fig. 1 and 4, a guide mechanism is disposed at the bottom of the transmission frame 4, the guide mechanism includes a first guide wheel 20 disposed on the bottom surface of the beam 1, a second guide wheel 21 is disposed on one side of the first guide wheel 20, and a third guide wheel 22 is disposed on the other side of the first guide wheel 20.
When the device is used, a prefabricated workpiece is placed below the transmission frame 4, the reinforcing rope 5 winds the outer surface of the prefabricated workpiece for a circle, one end of the reinforcing rope 5 is attached to the outer surfaces of the first guide wheel 20, the second guide wheel 21 and the third guide wheel 22, the reinforcing rope 5 is guided, the tightness of the reinforcing rope 5 in connection with the prefabricated workpiece is improved, the phenomenon that the surface of the reinforcing rope 5 is scratched is avoided, the service life of the reinforcing rope 5 is prolonged, after the wiring connection is finished, one end of the lifting hook 23 is sleeved on the surface of the reinforcing rope 5, and connection of the reinforcing rope 5 and the prefabricated workpiece is achieved.
Referring to fig. 4, two support plates 17 are mounted at the top of the inner cavity of the transmission frame 4, a second servo motor 19 is mounted on a surface of one side of one support plate 17, and a winding rod 18 fixedly connected with an end of an output shaft of the second servo motor 19 is mounted between the two support plates 17.
The second servo motor 19 drives the winding rod 18 to rotate, the reinforcing rope 5 can be wound while the winding rod 18 rotates, the reinforcing rope 5 enters the winding rod 18 in the transmission frame 4 at the moment, the height of the prefabricated workpiece is lifted, and the prefabricated workpiece is convenient to transport.
Referring to fig. 4, the reinforcing cord 5 is wound around the outer surface of the winding rod 18, the end of the reinforcing cord 5 is fixedly connected with a hook 23, and one end of the hook 23 passes through the third guide wheel 22 and is fastened to the outer surface of the reinforcing cord 5.
During hoisting, the surface of the reinforcing rope 5 is attached to the surface of the third guide wheel 22, the reinforcing rope 5 can be wound into a whole through the lifting hook 23, and the hoisting of the prefabricated workpiece is realized.
The working principle is as follows:
when the cleaning device is used, the transmission frame 4 moves and simultaneously drives the connecting plate 6 to move together, and in an initial state, the linear air cylinder 7 is in a power-off state, the cleaning roller 11 is in rolling fit with the top surface of the beam 1, the top surface of the beam 1 is simultaneously cleaned in a rolling manner in the transmission of the transmission frame 4, then the servo motor I13 drives the cam 14 and the mounting block 15 to rotate while driving the protruding rotating rod 12, the cleaning steel brush 16 moves along with the cam, and the inner walls on two sides of the guide rail 3 are cleaned, so that mud and dirt on the inner wall of the guide rail 3 can be cleaned repeatedly, the transmission of the transmission frame 4 is matched, the cleaning effect in the guide rail 3 is more thorough, the transmission effect of the transmission frame 4 is ensured, and the normal construction progress of a project is not influenced;
the reinforcing rope 5 winds around the outer surface of the prefabricated workpiece for a circle, one end of the reinforcing rope 5 is attached to the outer surfaces of the first guide wheel 20, the second guide wheel 21 and the third guide wheel 22, the reinforcing rope 5 is guided, the tightness of the reinforcing rope 5 when the prefabricated workpiece is connected is improved, the phenomenon that the surface of the reinforcing rope 5 is scratched is avoided, the service life of the reinforcing rope 5 is prolonged, after the winding connection is finished, one end of the lifting hook 23 is sleeved on the surface of the reinforcing rope 5, and the connection of the reinforcing rope 5 and the prefabricated workpiece is achieved.
Although the present invention has been described with reference to the preferred embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but is intended to cover various modifications, equivalents and alternatives falling within the spirit and scope of the invention.
Claims (6)
1. The utility model provides a guide tracked bridging machine self-cleaning device which characterized in that: the cleaning device comprises a crossbeam (1), wherein a guide rail (3) is arranged on the top surface of the crossbeam (1), a transmission frame (4) is connected to the inside of the guide rail (3) in a sliding manner, a connecting plate (6) is fixedly connected to one side of the transmission frame (4), a cavity (10) is arranged inside the connecting plate (6), a protruding rotating rod (12) is installed in an inner cavity of the cavity (10) in a matching manner, a cleaning roller (11) is sleeved on the outer surface of the protruding rotating rod (12), a cam (14) is arranged at one end of the protruding rotating rod (12), a connecting rod (24) is hinged inside the cam (14), an installation block (15) is movably installed at one end of the connecting rod (24), and a cleaning steel brush (16) attached to the inner wall of the guide rail (3) is installed on the surface of one side of the installation block (15); the both ends of protruding dwang (12) are all rotated and are connected with L shape fixed plate (9), one of them one side surface mounting of L shape fixed plate (9) has servo motor (13), the output shaft tip of servo motor (13) is fixed with the axle head of protruding dwang (12), the top surface of connecting plate (6) is equipped with wear groove (8) that are used for L shape fixed plate (9) to pass, the inner wall of cavity (10) is equipped with the guide way, install the guide block on the outer wall of installation piece (15), guide block and guide way sliding connection.
2. The automatic cleaning device of the guide rail type bridge girder erection machine according to claim 1, wherein a linear cylinder (7) for pushing the L-shaped fixing plate (9) to move is fixedly installed on the top surface of the connecting plate (6).
3. The automatic cleaning device of the guide rail type bridge girder erection machine according to claim 1, wherein two supporting beams (2) for supporting the stability of the cross beam (1) are fixedly connected to one side of the bottom surface of the cross beam (1) far away from the guide rail (3).
4. The automatic cleaning device of the guide rail type bridge girder erection machine according to claim 1, wherein a guide mechanism is arranged at the bottom of the transmission frame (4), the guide mechanism comprises a first guide wheel (20) arranged on the bottom surface of the cross beam (1), a second guide wheel (21) is arranged at one side of the first guide wheel (20), and a third guide wheel (22) is arranged at the other side of the first guide wheel (20).
5. The automatic cleaning device of the guide rail type bridge girder erection machine according to claim 4, wherein two supporting plates (17) are installed at the top of the inner cavity of the transmission frame (4), one side surface of one supporting plate (17) is provided with a second servo motor (19), and a winding rod (18) fixedly connected with the end part of an output shaft of the second servo motor (19) is installed between the two supporting plates (17).
6. The automatic cleaning device of the guide rail type bridge girder erection machine according to claim 5, wherein a reinforcing rope (5) is wound on the outer surface of the winding rod (18), the reinforcing rope (5) is sequentially wound on a first guide wheel (20), a second guide wheel (21) and a third guide wheel (22), a lifting hook (23) is fixedly connected to the tail end of the reinforcing rope (5), and one end of the lifting hook (23) penetrates through the third guide wheel (22) and is buckled on the outer surface of the reinforcing rope (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111619065.0A CN114289360B (en) | 2021-12-27 | 2021-12-27 | Guide tracked bridging machine self-cleaning device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111619065.0A CN114289360B (en) | 2021-12-27 | 2021-12-27 | Guide tracked bridging machine self-cleaning device |
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| Publication Number | Publication Date |
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| CN114289360A true CN114289360A (en) | 2022-04-08 |
| CN114289360B CN114289360B (en) | 2022-11-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111619065.0A Active CN114289360B (en) | 2021-12-27 | 2021-12-27 | Guide tracked bridging machine self-cleaning device |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2565954A1 (en) * | 1983-09-08 | 1985-12-20 | Bidault Louis | Device for moving a mobile unit from one point to another on a rail |
| JPH1162407A (en) * | 1997-05-16 | 1999-03-05 | Taiwan Koshotoku Denki Yugenkoshi | Automatic cleaning device |
| KR200182247Y1 (en) * | 1999-11-19 | 2000-05-15 | 포항종합제철주식회사 | Device for cleaning rail of overhead crane |
| CN107311038A (en) * | 2017-08-08 | 2017-11-03 | 无锡宝宏船舶机械有限公司 | Possesses the lifting dolly of wire rope fiction drive cleaning function |
| CN212198194U (en) * | 2020-05-26 | 2020-12-22 | 广东省华承机电科技有限公司 | Lubricating maintenance equipment of self-discharging lifting equipment |
| CN213738262U (en) * | 2020-11-20 | 2021-07-20 | 北起智能装备集团有限公司 | Crane cable winding and unwinding device |
| CN214320998U (en) * | 2021-01-28 | 2021-10-01 | 天津顺祥通农业科技有限公司 | Easy-to-maintain profile steel forming frame |
| CN214518806U (en) * | 2021-03-22 | 2021-10-29 | 苏州市奇林合金模具有限公司 | Be beryllium copper processing digit control machine tool guide rail structure convenient to clearance |
| CN113814222A (en) * | 2021-11-03 | 2021-12-21 | 重庆芯洁科技有限公司 | PVD part high pressure washing equipment |
-
2021
- 2021-12-27 CN CN202111619065.0A patent/CN114289360B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2565954A1 (en) * | 1983-09-08 | 1985-12-20 | Bidault Louis | Device for moving a mobile unit from one point to another on a rail |
| JPH1162407A (en) * | 1997-05-16 | 1999-03-05 | Taiwan Koshotoku Denki Yugenkoshi | Automatic cleaning device |
| KR200182247Y1 (en) * | 1999-11-19 | 2000-05-15 | 포항종합제철주식회사 | Device for cleaning rail of overhead crane |
| CN107311038A (en) * | 2017-08-08 | 2017-11-03 | 无锡宝宏船舶机械有限公司 | Possesses the lifting dolly of wire rope fiction drive cleaning function |
| CN212198194U (en) * | 2020-05-26 | 2020-12-22 | 广东省华承机电科技有限公司 | Lubricating maintenance equipment of self-discharging lifting equipment |
| CN213738262U (en) * | 2020-11-20 | 2021-07-20 | 北起智能装备集团有限公司 | Crane cable winding and unwinding device |
| CN214320998U (en) * | 2021-01-28 | 2021-10-01 | 天津顺祥通农业科技有限公司 | Easy-to-maintain profile steel forming frame |
| CN214518806U (en) * | 2021-03-22 | 2021-10-29 | 苏州市奇林合金模具有限公司 | Be beryllium copper processing digit control machine tool guide rail structure convenient to clearance |
| CN113814222A (en) * | 2021-11-03 | 2021-12-21 | 重庆芯洁科技有限公司 | PVD part high pressure washing equipment |
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| CN114289360B (en) | 2022-11-29 |
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