CN108203933B - Frame-transporting integrated bridge girder erection machine for rear vehicle three-row tires - Google Patents
Frame-transporting integrated bridge girder erection machine for rear vehicle three-row tires Download PDFInfo
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- CN108203933B CN108203933B CN201810234828.1A CN201810234828A CN108203933B CN 108203933 B CN108203933 B CN 108203933B CN 201810234828 A CN201810234828 A CN 201810234828A CN 108203933 B CN108203933 B CN 108203933B
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- 238000012544 monitoring process Methods 0.000 claims description 17
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- 230000002411 adverse Effects 0.000 abstract 1
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- 230000003137 locomotive effect Effects 0.000 description 3
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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Abstract
The invention discloses a frame-transporting integrated bridge girder erection machine for rear vehicle three-row tires, which comprises a girder, a front vehicle, a rear vehicle, main supporting legs, auxiliary supporting legs and a hanging beam crown block, wherein the rear vehicle comprises a rear vehicle cross beam connected with the bottom of the girder, rear vehicle longitudinal beams are arranged at the bottoms of two sides of the rear vehicle cross beam, the central bottom of the rear vehicle cross beam is connected with rear vehicle middle row wheels through rear vehicle middle row wheel group suspension hydraulic cylinders, the bottoms of the rear vehicle longitudinal beams are respectively connected with rear vehicle two side wheels through rear vehicle two side wheel group cliff hydraulic cylinders, the rear vehicle middle row wheel group suspension hydraulic cylinders and the rear vehicle two side wheel group cliff hydraulic cylinders are respectively connected with the output ends of hydraulic pumps through hydraulic pipes, the input ends of the hydraulic pumps are connected with an engine through gearboxes, and pressure regulating valves are respectively arranged on the hydraulic pipes. The invention solves the problems that the existing bridge girder erection machine has adverse effects on the rigidity of the girder, the construction load of the girder carrying through the tunnel and the erected girder and the operability along with the increase of the length of the concrete box girder.
Description
Technical Field
The invention relates to a bridge girder erection machine, in particular to a bridge girder erection machine with three rows of tires on a rear vehicle and a transportation frame.
Background
Along with the continuous development of railways in China, the spans of the prefabricated piers erected on the railway routes are larger and larger, and the lengths of the erected concrete box girders are also increased, so that the requirements on bridge erecting machines are also higher and higher. For example: a typical machine type frame-carrying combined bridge girder erection machine increases the length of a girder along with the increase of the length of a concrete box girder, so that the whole length and the weight of the bridge girder erection machine are increased, and the rigidity of the girder, the construction load of carrying the girder through a tunnel and the erected girder and the operability are all unfavorable.
Disclosure of Invention
The invention solves the defects of the prior art, and provides the bridge girder erection machine which can increase a row of wheels in the middle of the rear vehicle to share the stress of tires at two sides on the premise of unchanged girder erection span, so that the length of the rear vehicle is shortened, and the length of the girder erection machine is shortened; on the premise of unchanged total length of the girder of the bridge girder erection machine, a row of wheels is added in the middle of the rear truck to share the stress of tires on two sides, the length of the rear truck is shortened, and the three rows of tires of the rear truck of the bridge girder erection machine with the same transportation frame are improved.
The technical scheme adopted by the invention for achieving the purpose is as follows:
the utility model provides a three row of tire's of back car fortune frame integral type bridge crane, includes the girder, girder one side bottom is equipped with the main leg, is equipped with the auxiliary leg in the center of girder, the girder is in the bottom of main leg side and is equipped with the preceding car, is equipped with the back car in girder opposite side bottom, be equipped with the hanging beam overhead traveling crane that is used for hanging the box girder that waits to erect on the girder between auxiliary leg and the back car, preceding car bottom hangs the pneumatic cylinder through preceding car wheel group and is connected with preceding car wheel, the back car includes the back car crossbeam that is connected with the girder bottom, is equipped with the back car longeron in back car crossbeam both sides bottom, is connected with the back car middle row wheel through back car middle row wheel group and hangs pneumatic cylinder in the middle of back car, back car longeron bottom is connected with back car both sides wheel group and is hung the pneumatic cylinder through the pneumatic tube respectively with the output of pneumatic pump, the input of pneumatic pump is connected with the engine through the gearbox respectively, be equipped with the air-vent valve on the pneumatic pump. The independent suspension hydraulic system of the rear vehicle adopts a set of hydraulic device, the engine drives the hydraulic pump through the gearbox, the output of the hydraulic pump respectively flows to the middle row and the independent suspension hydraulic cylinders at two sides, and each hydraulic pipeline is provided with a pressure regulating valve to control the output pressure of the hydraulic cylinder, so that the damage caused by the fact that the middle stress and deformation of a top plate of a concrete box girder exceeds the allowable strength and rigidity values when the bridge girder erection machine walks on the erected concrete box girder is prevented.
Further, the rear vehicle middle row wheel set suspension hydraulic cylinder is connected with the rear vehicle middle row wheel set suspension system, the rear vehicle two side wheel set suspension hydraulic cylinder is connected with the rear vehicle two side wheel set suspension system, and the rear vehicle middle row wheel set suspension system and the rear vehicle two side wheel set suspension system both adopt open type load sensitive control systems. All wheel set suspension systems of the rear vehicle adopt an open type load sensitive control system, a suspension cylinder adopts a double-acting cylinder, the whole vehicle is suspended according to a frame and supported by four points, and the automatic balance adjustment can be realized by suspending each point.
Preferably, the wheel set suspension hydraulic cylinders of the middle row of the rear vehicle and the wheel set suspension hydraulic cylinders of the two sides of the rear vehicle are different in model.
Further, the front vehicle wheels, the rear vehicle middle row wheels, the front vehicle wheel set suspension hydraulic cylinder, the rear vehicle middle row wheel set suspension hydraulic cylinder and the rear vehicle two side wheel set suspension hydraulic cylinder are respectively provided with pressure sensors, the bridge girder erection machine is further provided with a bridge girder erection machine real-time monitoring system, the bridge girder erection machine real-time monitoring system comprises a main control unit, and the main control unit is respectively connected with a pressure regulating valve, the pressure sensors, a display and an alarm.
The bridge girder erection machine is provided with a real-time monitoring system, the front and rear vehicle wheels and the independent suspension hydraulic cylinders are provided with pressure sensors, and the pressure sensors of the wheels and the pressure sensors of the hydraulic cylinders transmit pressure values to the main control unit in real time in the operation process of the bridge girder erection machine. The main control unit adjusts the force output of the suspension hydraulic cylinder through adjusting the pressure regulating valve, so that the forces of the three groups of wheels reach a certain proportion balance. The main control unit is connected with the display, the pressure value can be displayed in real time, the wheel pressure of each row of wheel sets of the front and rear vehicles is set with a rated threshold, and when the wheel pressure reaches 90% of the rated threshold, a prompt is sent out and the adjustment is carried out; when the wheel pressure reaches the rated wheel pressure threshold, an alarm is sent out, and the operation is stopped.
Further, the bridge girder erection machine real-time monitoring system is connected with a terminal with a built-in bridge girder erection machine real-time monitoring application program in a wireless mode, and the terminal is a mobile phone. According to the invention, through the real-time monitoring of the mobile phone APP, the core parameters (including wheel pressure of the wheel set, pressure of the independent suspension hydraulic cylinder and the like) monitored by the main control unit on the bridge girder erection locomotive are displayed and monitored on the mobile phone, so that a user can check and regulate in real time.
Further, the stress and deformation of the wheels on the two sides of the rear vehicle and the wheels on the middle row of the rear vehicle, which are generated when the rear vehicle walks on the erected box girder, are smaller than the allowable strength value and allowable rigidity value of the concrete box girder, and the number and the group number of the wheels on the middle row of the rear vehicle and the wheels on the two sides of the rear vehicle are equal. The number and the number of the rear tires of the bridge girder erection machine are designed: the bridge girder Liang Liucheng is periodically operated, so that the front and rear vehicles are stressed periodically. The number and the number of rear tires are configured according to the maximum load (maximum supporting counterforce) borne by the rear vehicle designed by the longest concrete box girder erected by the bridge girder erection machine so as to achieve the purposes that the stress generated by the rear tires walking on the erected box girder is smaller than the allowable strength of the box girder and the deformation is smaller than the allowable rigidity.
The tire pressure of the wheels of the middle row of the rear vehicle is smaller than the tire pressure of the wheels on the two sides of the rear vehicle. In the operation process, the bridge girder erection machine walks on the erected box girder, then tires on two sides of the rear truck walk above the web plate of the concrete box girder, the tires bear larger load, tires in the middle row of the rear truck walk above the middle part of the top plate of the concrete box girder, and the tires bear smaller load.
Compared with the existing bridge girder erection machine with integrated transportation and erection, the bridge girder erection machine has the advantages that on the premise that the girder erection span is unchanged, the load of the wheel sets at two sides of the wheel component arm is increased in the middle of the rear vehicle, the length of the rear vehicle is shortened, the length of a girder of the bridge girder erection machine is further shortened, the structure is better and more compact, the weight of the girder is reduced, the rigidity is relatively improved, the operation is better and more convenient, and the economical efficiency is improved; on the premise of unchanged total length of the girder of the bridge girder erection machine, the stress of the wheel groups on two sides of the wheel component arm is increased in the middle of the rear truck, so that the length of the rear truck is shortened, the girder erection span of the bridge girder erection machine with integrated conveying and erecting is improved, and the erection of various concrete box girders is satisfied. The invention can also monitor the core parameters (including wheel pressure of the wheel set, output pressure of the suspension hydraulic cylinder and the like) monitored by the main control unit on the bridge girder erection locomotive in real time, and simultaneously displays and monitors the core parameters on the monitoring mobile phone APP, thereby facilitating the real-time checking and adjustment of users.
Drawings
The invention will now be further described with reference to the accompanying drawings, in which:
FIG. 1 is a schematic diagram of the front structure of a bridge girder erection machine with three rows of tires on a rear vehicle;
FIG. 2 is a schematic diagram of the front structure of a rear truck of a frame-together bridge girder erection machine for three rows of tires of the rear truck;
FIG. 3 is a schematic side view of a rear truck of a truck-mounted bridge girder erection machine with three rows of tires of the rear truck;
FIG. 4 is a schematic diagram of a 90-degree steering front structure of a rear truck wheel set of a truck-mounted bridge girder erection machine for three rows of tires of a rear truck;
FIG. 5 is a schematic diagram of a 90-degree steering side structure of a rear truck wheel set of a truck-mounted bridge girder erection machine for three rows of tires of a rear truck;
FIG. 6 is a first flowchart of a girder erection operation;
FIG. 7 is a second girder erection operation flow chart;
FIG. 8 is a third girder erection operation flow chart;
FIG. 9 is a fourth girder erection operation flow chart;
FIG. 10 is a girder erection operation flow chart V;
FIG. 11 is a sixth flowchart of a girder erection operation;
FIG. 12 is a girder erection operation flow chart seven;
reference numerals illustrate: the bicycle is characterized in that the bicycle is provided with a main leg 1, a front bicycle 2, a main girder 3, an auxiliary leg 4, a hanging beam crown block 5, a box girder to be erected 6, a rear bicycle 7, a box girder already erected 8, a rear bicycle cross beam 9, a rear bicycle longitudinal beam 10, a rear bicycle wheel set suspension hydraulic cylinder 11, rear bicycle two side wheels 12, a rear bicycle middle row wheel set suspension hydraulic cylinder 13 and a rear bicycle middle row wheel 14.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully with reference to the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1 to 3, a frame-transporting integrated bridge girder erection machine for three rows of tires of a rear truck 7 comprises a main girder 3, wherein a main supporting leg 1 is arranged at the bottom of one side of the main girder 3, an auxiliary supporting leg 4 is arranged at the center of the main girder 3, a front truck 2 is arranged at the bottom of the main girder 3 on the side of the main supporting leg, a rear truck 7 is arranged at the bottom of the other side of the main girder 3, a hanging beam crown block 5 for hanging a box girder 6 to be erected is arranged on the main girder 3 between the auxiliary supporting leg 4 and the rear truck 7, the bottom of the front truck 2 is connected with the front truck wheels through a front truck wheel set hanging hydraulic cylinder, the rear truck 7 comprises a rear truck beam 9 connected with the bottom of the main girder 3, rear truck stringers 10 are arranged at the bottoms of two sides of the rear truck beams 9 through rear truck middle row wheel set hanging hydraulic cylinders 13 and rear truck middle row wheels, the bottoms of the rear truck stringers 10 are respectively connected with the two sides of the rear truck wheels through rear truck wheel set hanging hydraulic cylinders 11, the rear truck middle row wheel set hanging hydraulic cylinders 13 and the two sides of the rear truck side truck wheels are respectively connected with the hydraulic cylinders through hydraulic pressure regulating valves through output ends of the hydraulic cylinders and the hydraulic cylinders respectively, and the hydraulic cylinders are connected with the hydraulic cylinders through pressure regulating valves respectively. The independent suspension hydraulic system of the rear vehicle adopts a set of hydraulic device, the engine drives the hydraulic pump through the gearbox, the output of the hydraulic pump respectively flows to the middle row and the independent suspension hydraulic cylinders at two sides, and each hydraulic pipeline is provided with a pressure regulating valve to control the output pressure of the hydraulic cylinder, so that the damage caused by the fact that the middle stress and deformation of a top plate of a concrete box girder exceeds the allowable strength and rigidity values when the bridge girder erection machine walks on the erected concrete box girder is prevented.
Further, the rear vehicle middle row wheel set suspension hydraulic cylinder 13 is connected with a rear vehicle middle row wheel set suspension system, the rear vehicle two side wheel set suspension hydraulic cylinders 11 are connected with rear vehicle two side wheel set suspension systems, and the rear vehicle middle row wheel set suspension system and the rear vehicle two side wheel set suspension systems are all open type load sensitive control systems. All wheel set suspension systems of the rear vehicle adopt an open type load sensitive control system, a suspension cylinder adopts a double-acting cylinder, the whole vehicle is suspended according to a frame and supported by four points, and the automatic balance adjustment can be realized by suspending each point.
Preferably, the wheel set suspension hydraulic cylinders 13 of the middle row of the rear vehicle and the wheel set suspension hydraulic cylinders 11 of the two sides of the rear vehicle are different in model.
Further, pressure sensors are respectively arranged on the front vehicle wheels, the rear vehicle wheels 12 on two sides, the rear vehicle middle row wheels 14, the front vehicle wheel set suspension hydraulic cylinder, the rear vehicle middle row wheel set suspension hydraulic cylinder 13 and the rear vehicle two sides wheel set suspension hydraulic cylinder 11, a bridge girder erection machine real-time monitoring system is further arranged on the bridge girder erection machine, the bridge girder erection machine real-time monitoring system comprises a main control unit, and the main control unit is respectively connected with a pressure regulating valve, the pressure sensor, a display and an alarm. The bridge girder erection machine is provided with a real-time monitoring system, the front and rear vehicle wheels and the independent suspension hydraulic cylinders are provided with pressure sensors, and the pressure sensors of the wheels and the pressure sensors of the hydraulic cylinders transmit pressure values to the main control unit in real time in the operation process of the bridge girder erection machine. The main control unit adjusts the force output of the suspension hydraulic cylinder through adjusting the pressure regulating valve, so that the forces of the three groups of wheels reach a certain proportion balance. The main control unit is connected with the display, the pressure value can be displayed in real time, the wheel pressure of each row of wheel sets of the front and rear vehicles is set with a rated threshold, and when the wheel pressure reaches 90% of the rated threshold, a prompt is sent out and the adjustment is carried out; when the wheel pressure reaches the rated wheel pressure threshold, an alarm is sent out, and the operation is stopped.
Further, the bridge girder erection machine real-time monitoring system is connected with a terminal with a built-in bridge girder erection machine real-time monitoring application program in a wireless mode, and the terminal is a mobile phone. According to the invention, through the real-time monitoring of the mobile phone APP, the core parameters (including wheel pressure of the wheel set, pressure of the independent suspension hydraulic cylinder and the like) monitored by the main control unit on the bridge girder erection locomotive are displayed and monitored on the mobile phone, so that a user can check and regulate in real time.
Further, the wheel pressures of the wheels 12 on the two sides of the rear vehicle and the wheels 14 on the middle row of the rear vehicle are smaller than the allowable strength value and the allowable rigidity value of the concrete box girder when the rear vehicle walks on the box girder 8, and the number and the group number of the wheels 14 on the middle row of the rear vehicle and the wheels 12 on the two sides of the rear vehicle are equal. The number and the number of the rear tires of the bridge girder erection machine are designed: the bridge girder Liang Liucheng is periodically operated, so that the front and rear vehicles 7 are stressed periodically. The maximum load (maximum supporting reaction force) borne by the rear truck 7 is designed according to the longest concrete box girder erected by the bridge girder erection machine, and the number of the rear tires are configured so as to achieve the effect that the stress generated by the rear tires walking on the erected box girder 8 is smaller than the allowable strength of the box girder and the deformation is smaller than the allowable rigidity.
The tire pressure of the rear vehicle middle row wheels 14 is smaller than the tire pressure of the rear vehicle side wheels 12. In the operation process, the bridge girder erection machine walks on the erected box girder 8, wheels 12 on two sides of a rear truck walk above a web plate of the concrete box girder, tires bear large loads, wheels 14 on the middle row of the rear truck walk above the middle part of a top plate of the concrete box girder, and the tires bear small loads.
As shown in fig. 4 and 5, the bridge girder erection machine returns to the girder field to transport the girder, the concrete box girder is placed at a preset position, the bridge girder erection machine and the concrete box girder are kept to walk in parallel at a certain distance to the girder hanging position, the front truck 2 and the rear truck 7 are steered by 90 degrees (wheels do not interfere in the 90-degree steering process of the rear truck 7, the wheels do not interfere) and walk to the Fang Qidiao box girder on the concrete box girder, and the front truck 2 and the rear truck 7 are steered by 90 degrees and transport the girder to the tail end of the erected girder.
As shown in fig. 6 to 12, the box girder 6 to be erected is transported to a predetermined position to be erected, the main support leg 1 is firstly placed at one pier top of the box girder 8 to be erected, the bridge girder 3 of the bridge girder machine is moved to be positioned at the other pier top of the box girder to be erected, the main support leg is lifted and the main support leg 1 is moved, the auxiliary support leg 4 is positioned at the top of the box girder to be erected, the main support leg is moved to be positioned at the other pier top of the box girder to be erected and the auxiliary support leg 4 is lifted, and the main girder 3 is moved until the two ends of the box girder 6 to be erected are positioned at the two pier tops, so that one operation flow is completed.
The foregoing description of the preferred embodiments of the present invention is not intended to limit the scope of the claims, which follow, as defined in the claims. It is to be understood that the above description is intended to be illustrative, and not restrictive. For example, the above-described embodiments (and/or aspects thereof) may be used in combination with each other. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from its scope. Many other embodiments and modifications within the scope and spirit of the claims will be apparent to those of skill in the art from a review of the foregoing description.
Claims (8)
1. The utility model provides a three row of tire's of back car fortune frame integral type bridge crane, includes the girder, girder one side bottom is equipped with the main landing leg, is equipped with the auxiliary landing leg in the center of girder, the girder is equipped with the front truck in the bottom of main landing leg side, is equipped with the back car in girder opposite side bottom, be equipped with the hanging beam overhead traveling crane that is used for hanging to erect the case roof beam on the girder between auxiliary landing leg and the back car, the front truck bottom is connected with the front truck wheel through preceding car wheel group suspension pneumatic cylinder, its characterized in that: the rear car comprises a rear car beam connected with the bottom of a main beam, rear car longitudinal beams are arranged at the bottoms of two sides of the rear car beam, the bottom of the center of the rear car beam is connected with the middle row wheels of the rear car through a middle row wheel set of the rear car, the bottoms of the rear car longitudinal beams are respectively connected with the two sides wheels of the rear car through two side wheel sets of the rear car, the middle row wheel set of the rear car is connected with the two sides wheels of the rear car through hydraulic pipes, the two side wheel sets of the rear car are respectively connected with the output ends of hydraulic pumps through hydraulic pipes, the input ends of the hydraulic pumps are connected with an engine through a gearbox, and pressure regulating valves are respectively arranged on the hydraulic pipes.
2. The bridge girder erection machine with integrated transportation frames for three rows of tires of a rear vehicle according to claim 1, wherein the rear vehicle middle row wheel set suspension hydraulic cylinder is connected with a rear vehicle middle row wheel set suspension system, the rear vehicle two side wheel set suspension hydraulic cylinder is connected with a rear vehicle two side wheel set suspension system, and the rear vehicle middle row wheel set suspension system and the rear vehicle two side wheel set suspension system both adopt open type load sensitive control systems.
3. The frame-integrated bridge girder erection machine for three rows of tires of a rear vehicle according to any one of claims 1 to 2, wherein the types of the wheel set suspension hydraulic cylinders of the middle row of the rear vehicle and the wheel set suspension hydraulic cylinders of the two sides of the rear vehicle are different.
4. The bridge girder erection machine with integrated transportation frame for rear tires, which is disclosed in claim 1, wherein the front wheels, the rear wheels on two sides, the rear wheels on the middle row, the front wheels, the rear middle row, the rear wheels and the rear wheels are respectively provided with pressure sensors, the bridge girder erection machine is further provided with a bridge girder erection machine real-time monitoring system, the bridge girder erection machine real-time monitoring system comprises a main control unit, and the main control unit is respectively connected with a pressure regulating valve, the pressure sensors, a display and an alarm.
5. The bridge girder erection machine with integrated transportation and erection for rear three rows of tires according to claim 4, wherein the bridge girder erection machine real-time monitoring system is connected with a terminal with a built-in bridge girder erection machine real-time monitoring application program in a wireless mode.
6. The bridge girder erection machine with integrated transportation frame for rear three rows of tires according to claim 5, wherein the terminal is a mobile phone.
7. The bridge girder erection machine with integrated transportation frame for three rows of tires of a rear vehicle according to claim 1, wherein the stresses and deformations generated on the erected girder by the wheels on both sides of the rear vehicle and the wheels on the middle row of the rear vehicle when the rear vehicle walks are smaller than the allowable strength value and allowable rigidity value of the concrete girder, and the number of the wheels on the middle row of the rear vehicle and the wheels on both sides of the rear vehicle are equal.
8. The bridge girder erection machine for transporting three rows of tires of a rear vehicle according to claim 1, wherein the tire pressure of the middle row of the wheels of the rear vehicle is smaller than the tire pressures of the wheels at both sides of the rear vehicle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810234828.1A CN108203933B (en) | 2018-03-21 | 2018-03-21 | Frame-transporting integrated bridge girder erection machine for rear vehicle three-row tires |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810234828.1A CN108203933B (en) | 2018-03-21 | 2018-03-21 | Frame-transporting integrated bridge girder erection machine for rear vehicle three-row tires |
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| Publication Number | Publication Date |
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| CN108203933A CN108203933A (en) | 2018-06-26 |
| CN108203933B true CN108203933B (en) | 2024-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810234828.1A Active CN108203933B (en) | 2018-03-21 | 2018-03-21 | Frame-transporting integrated bridge girder erection machine for rear vehicle three-row tires |
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| CN110589716A (en) * | 2019-09-26 | 2019-12-20 | 中船第九设计研究院工程有限公司 | Hydraulic trolley and module trolley combined operation transportation method |
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| JP2000257022A (en) * | 1999-03-08 | 2000-09-19 | Sanshin Kogyo Kk | Erection device for bridge |
| JP2005240353A (en) * | 2004-02-25 | 2005-09-08 | Ohbayashi Corp | Erection method of bridge |
| JP2009024464A (en) * | 2007-07-24 | 2009-02-05 | Nippon Sharyo Seizo Kaisha Ltd | Delivery truck |
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| CN108203933A (en) | 2018-06-26 |
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