CN216074776U - Height-adjustable steel box girder pushing equipment - Google Patents
Height-adjustable steel box girder pushing equipment Download PDFInfo
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- CN216074776U CN216074776U CN202122348710.1U CN202122348710U CN216074776U CN 216074776 U CN216074776 U CN 216074776U CN 202122348710 U CN202122348710 U CN 202122348710U CN 216074776 U CN216074776 U CN 216074776U
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- box girder
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Abstract
The utility model discloses a height-adjustable steel box girder jacking device which comprises a mechanical system, a pressure system and a control system, wherein the mechanical system comprises a jacking oil cylinder, an upper sliding mechanism, a jacking oil cylinder, a deviation-correcting oil cylinder, a guide mechanism and a lower supporting mechanism, the guide mechanism is guide rails symmetrically arranged on two sides of the upper end of the lower supporting mechanism, the jacking oil cylinder is arranged at the bottom of the lower supporting mechanism, the jacking oil cylinder is arranged on the lower supporting mechanism, the piston end of the jacking oil cylinder is connected with the upper sliding mechanism, and the deviation-correcting oil cylinder is connected with the upper sliding mechanism; the control system comprises a displacement sensor, an electromagnetic valve, a control substation and a remote terminal. The jacking equipment integrates jacking, jacking and deviation rectifying, and a control system is used for synchronously controlling a plurality of sets of jacking equipment, so that the accuracy of erecting the box girder is greatly improved.
Description
Technical Field
The utility model relates to the technical field of road and bridge construction, in particular to height-adjustable steel box girder pushing equipment.
Background
With the continuous improvement of the design and construction technology level of bridges in China, a large number of continuous steel box girder bridges are developed in the fields of highways, urban traffic, railways and the like. The pushing method is widely applied to the construction because of the advantages of small occupied area, no influence on the traffic under the bridge, no need of large hoisting machines, safety, reliability, low cost and the like. The pushing construction method is that a prefabricated field is arranged behind a bridge abutment along the axial direction of a bridge, and a steel guide beam, a temporary pier, a slideway, a horizontal jack (also called a pushing power device or a pushing force application device) and the like are arranged.
The pushing process needs pushing equipment, the existing pushing equipment cannot be synchronously controlled, and the box girder cannot be effectively corrected during pushing.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art, provides the height-adjustable steel box girder pushing equipment, integrates the functions of jacking, pushing and deviation rectification, and greatly improves the accuracy of box girder erection by synchronously controlling a plurality of sets of pushing equipment through a control system.
The purpose of the utility model is realized by the following technical scheme:
a steel box girder pushing device with adjustable height, which comprises a mechanical system, a pressure system and a control system,
the mechanical system comprises a jacking oil cylinder, an upper sliding mechanism, a pushing oil cylinder, a deviation-correcting oil cylinder, a guide mechanism and a lower supporting mechanism, wherein the guide mechanism is guide rails symmetrically arranged on two sides of the upper end of the lower supporting mechanism;
the pressure system is a synchronous control hydraulic pump station which is connected with the jacking oil cylinder, the pushing oil cylinder and the deviation rectifying oil cylinder through hydraulic pipelines;
the control system comprises a displacement sensor, electromagnetic valves, a control substation and a remote terminal, wherein the displacement sensor is provided with at least three sensors which are respectively used for monitoring the displacement of the jacking oil cylinder, the deviation rectifying oil cylinder and the jacking oil cylinder, and the electromagnetic valves are connected with the hydraulic pipeline; the displacement sensor is electrically connected with the control substation, the electromagnetic valve is electrically connected with the control substation, the hydraulic pump station is electrically connected with the control substation, and the control substation is in communication connection with the remote terminal.
Further, the remote terminal is a computer.
Further, upper portion glide machanism includes sliding bottom, the supporting box and the top layer board of rectifying, sliding bottom with lower part supporting mechanism's upper end sliding connection, sliding bottom is last to be equipped with two limiting plates, two form the recess that is used for installing the supporting box of rectifying between the limiting plate, the supporting box of rectifying can follow the gliding setting of perpendicular to sliding bottom advancing direction in the recess, the top layer board with the supporting box of rectifying is connected.
Furthermore, the upper surface of the top supporting plate is provided with a rubber cushion block.
Further, the thickness of the rubber cushion block is 10-15 mm.
Furthermore, the jacking oil cylinder is arranged in the lower supporting mechanism, and the piston end of the jacking oil cylinder is vertically arranged downwards.
Further, be equipped with the rectangular block on the supporting mechanism of lower part, the rectangular block is equipped with the top and pushes away hydro-cylinder installation cavity, the top pushes away the hydro-cylinder setting and is in the top pushes away hydro-cylinder installation cavity, be equipped with the wedge on the glide machanism of upper portion, the wedge is equipped with the holding tank that can hold the rectangular block.
Furthermore, the control system also comprises an inclination angle sensor which is electrically connected with the control substation.
The utility model has the beneficial effects that:
1) the jacking equipment integrates jacking, jacking and deviation rectifying, and a control system is used for synchronously controlling a plurality of sets of jacking equipment, so that the accuracy of erecting the box girder is greatly improved.
2) The upper sliding mechanism can reduce the friction between the deviation rectifying support box and the sliding bottom plate to the maximum degree when rectifying, so that the box girder is prevented from shaking, dislocating and vibrating when rectifying, and the accuracy and the safety of rectifying the deviation of the box girder are ensured.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a mechanical system in an embodiment of the present invention;
FIG. 2 is a schematic block diagram of a control system according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of an upper sliding structure according to an embodiment of the present invention;
FIG. 4 is a diagram illustrating a state of use of a mechanical system in an embodiment of the present invention;
FIG. 5 is a diagram illustrating a jacking state of a mechanical system according to an embodiment of the present invention;
FIG. 6 is a diagram illustrating a pushing state of the mechanical system according to an embodiment of the present invention;
FIG. 7 is a diagram illustrating a mechanical system in a beam-falling state according to an embodiment of the present disclosure;
FIG. 8 is a state diagram of the reset of the thrust cylinder of the mechanical system in the embodiment of the present invention;
in the figure, 1, a jacking oil cylinder; 2. an upper sliding mechanism; 3. a pushing oil cylinder; 4. a deviation rectifying oil cylinder; 5. a guide mechanism; 6. a lower support mechanism; 7. a hydraulic line; 8. synchronously controlling a hydraulic pump station; 9. a displacement sensor; 10. an electromagnetic valve; 11. a control substation; 12. a sliding bottom plate; 13. a deviation rectifying support box; 14. a top pallet; 15. a rectangular block; 16. a wedge block; 17. a tilt sensor; 18. and a remote terminal.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
Referring to fig. 1 to 8, the present invention provides a technical solution:
example (b):
as shown in fig. 1-8, a steel box girder pushing device with adjustable height comprises a mechanical system, a pressure system and a control system,
the mechanical system comprises a jacking oil cylinder 1, an upper sliding mechanism 2, a jacking oil cylinder 3, a deviation rectifying oil cylinder 4, a guide mechanism 5 and a lower supporting mechanism 6, wherein the guide mechanism 5 is a guide rail (a guide rail plane guide rail, which is arranged in parallel with the traveling direction of the upper sliding mechanism 2) symmetrically arranged at two sides of the upper end of the lower supporting mechanism 6, the upper sliding mechanism 2 is in sliding connection with the upper end of the lower supporting mechanism 6, the jacking oil cylinder 1 is arranged at the bottom of the lower supporting mechanism 6, the jacking oil cylinder 3 is arranged on the lower supporting mechanism 6, the piston end of the jacking oil cylinder 3 is connected with the upper sliding mechanism 2, and the deviation rectifying oil cylinder 4 is connected with the upper sliding mechanism 2;
the pressure system is a synchronous control hydraulic pump station 8 connected with the jacking oil cylinder 1, the jacking oil cylinder 3 and the deviation rectifying oil cylinder 4 through a hydraulic pipeline 7;
as shown in fig. 2, the control system includes a displacement sensor 9, an electromagnetic valve 10, a control substation 11 and a remote terminal 18, wherein at least three displacement sensors 9 are respectively used for monitoring displacements of the jacking cylinder 3, the deviation rectifying cylinder 4 and the jacking cylinder 1, and the electromagnetic valve 10 is connected with the hydraulic pipeline 7; the displacement sensor 9 is electrically connected with the control substation 11, the electromagnetic valve 10 is electrically connected with the control substation 11, the hydraulic pump station is electrically connected with the control substation 11, and the control substation 11 is in communication connection with the remote terminal 18.
Wherein the sensor, the electromagnetic valve 10, the control substation 11, the deviation-correcting oil cylinder 4, the pushing oil cylinder 3 and the jacking oil cylinder 1 form a subsystem which is respectively in communication connection with a computer; the control substation 11 may be, but is not limited to, a PLC. The specific schematic block diagram is shown in fig. 3.
The working principle is as follows: and the synchronous control hydraulic pump station 8 supplies oil to the three hydraulic pumps through the hydraulic pipeline 7 to provide power. The pushing process comprises the following steps: the box girder falls on the upper sliding mechanism 2, and the control system controls the jacking oil cylinder 1 to act to drive the box girder to jack. Then the pushing oil cylinder 3 acts to drive the box girder to move horizontally, thereby realizing the forward movement of the box girder. And the box girder moves forwards to the limit of the pushing oil cylinder 3, and then descends. The box girder falls back to the pad girder and is temporarily supported by the pad girder. Then the pushing oil cylinder 3 is reset. And repeating the steps until the box girder is in place, and completing the pushing of the over-line box girder.
The box girder pushing is carried out along a straight line, the walking track of the steel box girder is measured and monitored at any time in the pushing process, and the corresponding transverse deviation rectifying numerical values are set for each group of pushing equipment through the remote terminal 18 within a reasonable deviation rectifying range to carry out transverse deviation rectifying. The operation of the deviation rectifying process is as follows: advancing the jacking oil cylinder 3 → returning the jacking oil cylinder 1 and adjusting the transverse position through the deviation correcting oil cylinder 4 → jacking → advancing the jacking oil cylinder 3 to form a cycle.
The jacking equipment integrates jacking, jacking and deviation rectifying, and a control system is used for synchronously controlling a plurality of sets of jacking equipment, so that the accuracy of erecting the box girder is greatly improved.
Further, the remote terminal 18 is a computer.
Further, as shown in fig. 3, the upper sliding mechanism 2 includes a sliding bottom plate 12, a deviation rectifying support box 13 and a top support plate 14, the sliding bottom plate 12 is connected with the upper end of the lower supporting mechanism 6 in a sliding manner, the sliding bottom plate 12 is provided with two limiting plates, a groove for installing the deviation rectifying support box 13 is formed between the limiting plates, the deviation rectifying support box 13 can slide along the direction perpendicular to the advancing direction of the sliding bottom plate 12 in the groove, and the top support plate 14 is connected with the deviation rectifying support box 13.
The bottom surface of the groove is of a mirror surface structure, so that the friction between the deviation rectifying support box 13 and the sliding bottom plate 12 can be reduced when the deviation rectifying support box 13 moves transversely.
During pushing, the pushing oil cylinder 3 drives the sliding bottom plate 12 to slide on the lower supporting mechanism 6, so that the box girder is pushed. During deviation correction, the deviation correction oil cylinder 4 drives the deviation correction support box 13 to move along the direction vertical to the sliding bottom plate 12, and the top support plate 14 on the deviation correction support box 13 moves synchronously. The top supporting plate 14 is used for supporting and carrying the box girder, and the deviation rectification of the box girder is realized in the transverse movement process of the top supporting plate 14.
The upper sliding mechanism 2 can reduce the friction between the deviation rectifying support box 13 and the sliding bottom plate 12 to the maximum extent when rectifying the deviation, so that the box girder is prevented from shaking, dislocating and vibrating when rectifying the deviation, and the accuracy and the safety of rectifying the deviation of the box girder are ensured.
Further, the thickness of the rubber cushion block is 10-15 mm; the upper surface of the top supporting plate 14 is provided with a rubber cushion block. The rubber cushion block that sets up can multiplicable case roof beam and the friction between the layer board, guarantees the stable support of case roof beam, avoids the direct and top layer board 14 contact of case roof beam simultaneously, wearing and tearing top layer board 14.
Further, as shown in fig. 5, the jacking cylinder 1 is arranged in the lower support mechanism 6, and the piston end of the jacking cylinder 1 is arranged vertically downwards. The jacking oil cylinder 1 is installed in an inverted mode, and elevation adjustment can be completed quickly.
Further, as shown in fig. 1, a rectangular block 15 is arranged on the lower supporting mechanism 6, the rectangular block 15 is provided with a jacking cylinder 3 installation cavity, the jacking cylinder 3 is arranged in the jacking cylinder 3 installation cavity, a wedge block 16 is arranged on the upper sliding mechanism 2, and the wedge block 16 is provided with an accommodating groove capable of accommodating the rectangular block 15. When the pushing oil cylinder 3 does not act, the wedge block 16 is coated outside the rectangular block 15, and when the piston end of the pushing oil cylinder 3 extends out to push, the wedge block 16 leaves the rectangular block 15, so that the length of the mechanical system is reduced while the displacement of the upper sliding mechanism 2 is ensured.
Further, as shown in fig. 2, the control system further includes an inclination sensor 17, and the inclination sensor 17 is electrically connected to the control substation 11. The inclination angle sensor 17 is arranged on a pad beam of the bridge pier, and the inclination angle sensor 17 is used for detecting the inclination angles of the box beam in the X-axis direction and the Y-axis direction. The degree of balance of the box girder can be controlled by setting the maximum inclination angle of each inclination angle sensor 17 in the X-axis and Y-axis directions. If the inclination angle of the inclination angle sensor 17 in the X-axis direction and the Y-axis direction exceeds the set value, the system stops and gives an alarm.
The foregoing is illustrative of the preferred embodiments of this invention, and it is to be understood that the utility model is not limited to the precise form disclosed herein and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the concept as disclosed herein, either as described above or as apparent to those skilled in the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the utility model as defined by the appended claims.
Claims (8)
1. The utility model provides a height-adjustable's steel case roof beam top pushes away equipment which characterized in that: comprises a mechanical system, a pressure system and a control system,
the mechanical system comprises a jacking oil cylinder, an upper sliding mechanism, a pushing oil cylinder, a deviation-correcting oil cylinder, a guide mechanism and a lower supporting mechanism, wherein the guide mechanism is guide rails symmetrically arranged on two sides of the upper end of the lower supporting mechanism;
the pressure system is a synchronous control hydraulic pump station which is connected with the jacking oil cylinder, the pushing oil cylinder and the deviation rectifying oil cylinder through hydraulic pipelines;
the control system comprises a displacement sensor, electromagnetic valves, a control substation and a remote terminal, wherein the displacement sensor is provided with at least three sensors which are respectively used for monitoring the displacement of the jacking oil cylinder, the deviation rectifying oil cylinder and the jacking oil cylinder, and the electromagnetic valves are connected with the hydraulic pipeline; the displacement sensor is electrically connected with the control substation, the electromagnetic valve is electrically connected with the control substation, the hydraulic pump station is electrically connected with the control substation, and the control substation is in communication connection with the remote terminal.
2. The height-adjustable steel box girder jacking apparatus as recited in claim 1, wherein: the remote terminal is a computer.
3. The height-adjustable steel box girder jacking apparatus as recited in claim 2, wherein: the upper portion glide machanism includes sliding bottom plate, the supporting box and the top layer board of rectifying, sliding bottom plate with lower part supporting mechanism's upper end sliding connection, sliding bottom plate is last to be equipped with two limiting plates, two form the recess that is used for installing the supporting box of rectifying between the limiting plate, the supporting box of rectifying can follow the gliding setting of perpendicular to sliding bottom plate advancing direction and be in the recess, the top layer board with the supporting box of rectifying is connected.
4. The height-adjustable steel box girder jacking apparatus as recited in claim 3, wherein: and a rubber cushion block is arranged on the upper surface of the top supporting plate.
5. The height-adjustable steel box girder jacking equipment as claimed in claim 4, wherein: the thickness of the rubber cushion block is 10-15 mm.
6. The height-adjustable steel box girder jacking apparatus as recited in claim 5, wherein: the jacking oil cylinder is arranged in the lower supporting mechanism, and the piston end of the jacking oil cylinder is vertically arranged downwards.
7. The height-adjustable steel box girder jacking equipment as claimed in claim 6, wherein: the supporting mechanism is characterized in that a rectangular block is arranged on the lower supporting mechanism, a pushing oil cylinder installation cavity is formed in the rectangular block, the pushing oil cylinder is arranged in the pushing oil cylinder installation cavity, a wedge block is arranged on the upper sliding mechanism, and the wedge block is provided with a containing groove capable of containing the rectangular block.
8. The height-adjustable steel box girder jacking apparatus as recited in claim 7, wherein: the control system further comprises an inclination angle sensor, and the inclination angle sensor is electrically connected with the control substation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122348710.1U CN216074776U (en) | 2021-09-27 | 2021-09-27 | Height-adjustable steel box girder pushing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122348710.1U CN216074776U (en) | 2021-09-27 | 2021-09-27 | Height-adjustable steel box girder pushing equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216074776U true CN216074776U (en) | 2022-03-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122348710.1U Active CN216074776U (en) | 2021-09-27 | 2021-09-27 | Height-adjustable steel box girder pushing equipment |
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|---|---|
| CN (1) | CN216074776U (en) |
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2021
- 2021-09-27 CN CN202122348710.1U patent/CN216074776U/en active Active
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