CN213389715U - PLC bridge synchronous jacking equipment - Google Patents
PLC bridge synchronous jacking equipment Download PDFInfo
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- CN213389715U CN213389715U CN202021016851.2U CN202021016851U CN213389715U CN 213389715 U CN213389715 U CN 213389715U CN 202021016851 U CN202021016851 U CN 202021016851U CN 213389715 U CN213389715 U CN 213389715U
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Abstract
The utility model provides a synchronous jacking equipment of PLC bridge, include: the hydraulic oil cylinder is arranged between the box girder and the bridge pier and is used for jacking the box girder; the auxiliary top cylinder is arranged between the box girder and the bridge pier, and the upper end and the lower end of the auxiliary top cylinder are respectively connected with the box girder and the bridge pier and used for assisting in supporting the box girder; the pump station is connected with the hydraulic oil cylinder through a pipeline; the displacement sensor is respectively connected with the hydraulic oil cylinder and the auxiliary jacking cylinder and is used for monitoring the jacking heights of the hydraulic oil cylinder and the auxiliary jacking cylinder; and the control system comprises an operation platform and a PLC (programmable logic controller) connected with the operation platform, and the PLC is respectively connected with the pump station and the displacement sensor. The utility model discloses a synchronous jacking of bridge is realized to the output oil pressure of control system control pump station, sets up supplementary jacking jar between case roof beam and pier, can avoid the bridge accident of collapsing that causes when hydraulic cylinder breaks down, improves the security.
Description
Technical Field
The utility model relates to a building engineering technical field particularly, relates to a synchronous jacking equipment of PLC bridge.
Background
The bridge jacking is originated from the erection and displacement of railway bridges in the 50 th of the 20 th century, and is started to be used for the integral synchronous jacking of bridges in the 90 th due to the rapid development of a building moving and displacing technology. With the development and popularization of computers, bridge jacking technology is also rapidly developed and widely applied, and becomes an important technical means.
Chinese patent CN201110439892.1 discloses a PLC hydraulic proportional synchronous jacking system for bridge jacking, which includes a hydraulic jacking system, a detection sensing system and a computer control system, and adopts a PLC to control the hydraulic cylinder proportional synchronous jacking system to accurately control the jacking speed of the hydraulic cylinder, so as to realize proportional synchronous jacking of the bridge. However, the PLC hydraulic proportional synchronous jacking system mainly depends on a hydraulic oil cylinder for jacking in the jacking process, no safety guarantee measures are provided, the jacking safety coefficient is low, and once the hydraulic oil cylinder leaks, the consequences are not imaginable.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a synchronous jacking equipment of PLC bridge has solved hydraulic cylinder jacking among the prior art, no safety guarantee measure, problem that jacking factor of safety is low.
In order to solve the technical problem, the utility model discloses a technical scheme is: the utility model provides a synchronous jacking equipment of PLC bridge, includes: the hydraulic oil cylinder is arranged between the box girder and the bridge pier and is used for jacking the box girder; the auxiliary top cylinder is arranged between the box girder and the bridge pier, and the upper end and the lower end of the auxiliary top cylinder are respectively connected with the box girder and the bridge pier and used for assisting in supporting the box girder; the pump station is connected with the hydraulic oil cylinder through a pipeline and used for driving the hydraulic oil cylinder to lift up; the displacement sensor is respectively connected with the hydraulic oil cylinder and the auxiliary jacking cylinder and is used for monitoring the jacking heights of the hydraulic oil cylinder and the auxiliary jacking cylinder; and the control system comprises an operation platform and a PLC (programmable logic controller) connected with the operation platform, wherein the PLC is respectively connected with the pump station and the displacement sensor and used for adjusting the output oil pressure of the pump station according to the monitoring signal of the displacement sensor.
According to the preferable scheme, the auxiliary jacking cylinder comprises a cylinder body, a sliding cylinder, a sliding shaft, ratchet plates, a limiting shaft and a rotating shaft, the inside of the cylinder body is of a cavity structure, the sliding shaft is located in the middle of the cavity structure, the bottom end of the sliding shaft is fixedly connected with the cylinder body, the sliding cylinder is sleeved on the sliding shaft and is in sliding connection with the sliding shaft, the upper end of the sliding cylinder penetrates through the upper portion of the cylinder body, a plurality of ratchet plates are oppositely arranged inside the cylinder body, each ratchet plate is inserted with the rotating shaft, two ends of the rotating shaft are fixedly connected to the inner wall of the cylinder body, the limiting shaft is fixedly arranged above the far end of each ratchet plate, the bottom end of the sliding cylinder extends to the periphery to form a partition part, one end, close to each other, of each ratchet plate is matched with the partition part, and is used for supporting the sliding cylinder and.
Preferably, the blocking part is of a rectangular structure, the ratchet plate is of a shuttle-shaped structure, one end of the shuttle-shaped structure is located below the limiting shaft, and the other end of the shuttle-shaped structure is located below the rectangular structure.
Preferably, a torsion spring is arranged between the rotating shaft and the ratchet plate.
Preferably, the bottom end of the cylinder body is fixedly provided with a bottom plate, the bottom plate is fixedly arranged on a pier, the top end of the sliding cylinder is fixedly provided with a top plate, and the top plate is fixedly arranged on a box girder.
Compared with the prior art, the beneficial effects of the utility model include: the control system is adopted to control the output oil pressure of the pump station, the jacking height of the hydraulic oil cylinder is adjusted, the synchronous jacking of the bridge is realized, and the displacement sensor realizes the real-time feedback, adjustment and controllability of the jacking height; set up supplementary top cylinder between case roof beam and pier, can avoid the bridge accident of collapsing that causes when hydraulic cylinder breaks down, improve the security.
Drawings
The disclosure of the present invention is explained with reference to the drawings. It is to be understood that the drawings are designed solely for the purposes of illustration and not as a definition of the limits of the invention. In the drawings, like reference numerals are used to refer to like parts.
Wherein:
fig. 1 is a schematic view of a working state of a PLC bridge synchronous jacking apparatus according to an embodiment of the present invention;
fig. 2 is a schematic diagram of module connection of the PLC bridge synchronous jacking apparatus according to the embodiment of the present invention;
fig. 3 is a schematic structural view of an auxiliary jacking cylinder according to an embodiment of the present invention;
fig. 4 is a longitudinal sectional view of the auxiliary jack cylinder according to the embodiment of the present invention;
fig. 5 is an internal structure diagram of the auxiliary top cylinder according to the embodiment of the present invention.
Reference numbers in the figures: 100 box girders, 200 piers, 300 supports, 400 synchronous jacking equipment, 1 hydraulic oil cylinder, 2 auxiliary jacking cylinders, 21 cylinder bodies, 22 bottom plates, 23 sliding cylinders, 24 top plates, 25 sliding shafts, 26 ratchet plates, 27 limiting shafts, 28 rotating shafts, 29 blocking parts, 3 displacement sensors, 4 operating tables, 5PLC controllers and 6 pump stations.
Detailed Description
It is easily understood that, according to the technical solution of the present invention, a plurality of alternative structural modes and implementation modes can be proposed by those skilled in the art without changing the spirit of the present invention. Therefore, the following detailed description and the accompanying drawings are merely illustrative of the technical solutions of the present invention, and should not be considered as limiting or restricting the technical solutions of the present invention in their entirety or in any other way.
An embodiment according to the present invention is shown in conjunction with fig. 1 and 2. The utility model provides a synchronous jacking equipment 400 of PLC bridge, includes hydraulic cylinder 1, supplementary top jar 2, pump station 6 and control system, and hydraulic cylinder 1 and supplementary top jar 2 set up between box girder 100 and pier 200, and hydraulic cylinder 1 is used for jacking box girder 100, and supplementary top jar 2 upper and lower tip links to each other with box girder 100 and pier 200 respectively for the auxiliary stay box girder 100.
The control system comprises an operation platform 4 and a PLC (programmable logic controller) 5 connected with the operation platform 4, the PLC 5 is connected with pump stations 6, the number of the pump stations 6 is multiple, each pump station 6 is connected with the hydraulic oil cylinder 1 through a pipeline, and the oil pressure output by the pump stations 6 is used for driving the multiple hydraulic oil cylinders 1 to synchronously lift.
The hydraulic jacking system is characterized by further comprising a displacement sensor 3, wherein the displacement sensor 3 is connected with the hydraulic oil cylinder 1 and the auxiliary jacking cylinder 2 and used for monitoring the jacking heights of the hydraulic oil cylinder 1 and the auxiliary jacking cylinder 2, is connected with the PLC controller 5 and is used for receiving jacking height signals of the hydraulic oil cylinder 1 and the auxiliary jacking cylinder 2 and feeding back the jacking height signals to the PLC controller 5.
As shown in fig. 3 to 5, the auxiliary top cylinder 22 includes a cylinder body 21, a sliding cylinder 23, a sliding shaft 25, a ratchet plate 26, a limiting shaft 27 and a rotating shaft 28, the inside of the cylinder body 21 is a cavity structure, the sliding shaft 25 is located in the middle of the cavity structure and the bottom end of the sliding shaft 25 is fixedly connected with the cylinder body 21, the sliding cylinder 23 is sleeved on the sliding shaft 25 and is slidably connected with the sliding shaft 25, the upper end of the sliding cylinder 23 penetrates through the upper portion of the cylinder body 21, the top end of the sliding cylinder 23 is fixedly provided with a top plate 24, and the top plate 24 is fixedly arranged on the box girder 100 through a bolt or is adhered to the bottom. The bottom end of the cylinder 21 is fixedly provided with a bottom plate 22, and the bottom plate 22 is fixedly arranged on the pier 200.
A plurality of ratchet plates 26 are oppositely arranged on two sides of the sliding barrel 23 in the cylinder body 21, a rotating shaft 28 is inserted into each ratchet plate 26, two ends of each rotating shaft 28 are fixedly connected to the inner wall of the cylinder body 21, and a torsion spring is arranged between each rotating shaft 28 and each ratchet plate 26.
A limiting shaft 27 is fixedly arranged above one end of the ratchet plate 26, which is far away from each other, two ends of the limiting shaft 27 are fixed on the inner wall of the cylinder body 21, one end of the ratchet plate 26, which is close to each other, is matched with the bottom end part of the sliding barrel 23, and the ratchet plate 26 is used for supporting the sliding barrel 23 and rotates when the sliding barrel 23 slides upwards.
Specifically, the plurality of ratchet plates 26 disposed at the side of the sliding barrel 23 are formed by stacking two ratchet plates 26 sleeved on the rotating shaft 28, each ratchet plate 26 has a shuttle-shaped structure, and one end of each ratchet plate 26 on two sides of the sliding barrel 23, which is close to each other, is a contact end, and the other end of each ratchet plate which is far from each other is a blocking end. The bottom end of the slide cylinder 23 extends to the periphery to form a baffle part 29, and the baffle part 29 is of a rectangular structure. Before the operation, the blocking end of the ratchet plate 26 is located below the limiting shaft 27, the abutting end is located below the blocking part 29, and under the action of the torsion spring, the ratchet plate 26 has a tendency of rotating clockwise, and the ratchet plate 26 is kept at the position because of being blocked by the limiting shaft 27.
During operation, under the jacking of the hydraulic oil cylinder 1, the box girder 100 moves upwards, the sliding barrel 23 slides upwards along the sliding shaft 25 under the driving of the box girder 100 to drive the blocking part 29 to move upwards, so as to push the abutting end of the previous ratchet plate 26 positioned on the ratchet plate 26 to rotate anticlockwise, the sliding barrel 23 continues to move upwards and downwards, the limitation of the previous ratchet plate 26 is broken through, the previous ratchet plate 26 resets under the action of the torsion spring, and the blocking part 29 crosses the ratchet plate 26 one by one according to the same motion process. When the hydraulic oil cylinder 1 leaks, the box girder 100 can still maintain the jacking of the box girder 100 under the lifting of the auxiliary jacking cylinder 22, and the occurrence of serious safety accidents is avoided.
To sum up, the utility model discloses a PLC bridge synchronous jacking device 400, which adopts a control system to control the output oil pressure of a pump station 6, adjusts the jacking height of a hydraulic oil cylinder 1, realizes the synchronous jacking of the bridge, and a displacement sensor 3 realizes the real-time feedback of the jacking height and is adjustable and controllable; the auxiliary top cylinder 22 is arranged between the box girder 100 and the pier 200, so that bridge collapse accidents caused by the failure of the hydraulic oil cylinder 1 can be avoided, and the safety is improved.
It should be understood that the utility model discloses the inner structure of well synchronous jacking equipment of PLC bridge roof beam, PLC controller, displacement sensor and pump station and circuit connection each other are the same with the PLC hydraulic pressure proportion synchronous jacking system for bridge jacking that patent CN201110439892.1 disclosed, do not do here and describe repeatedly.
It should still understand, the utility model discloses a synchronous jacking equipment of PLC bridge rises to the termination position after, how to dismantle and how to reset the slide cartridge, does not belong to the scope that this application required protection, and this equipment can be disposable equipment, and perhaps its cylinder body upper cover is detachable, opens the upper cover and stirs the ratchet board and make the slide cartridge reset.
The technical scope of the present invention is not limited to the content in the above description, and those skilled in the art can make various modifications and alterations to the above embodiments without departing from the technical spirit of the present invention, and these modifications and alterations should fall within the protection scope of the present invention.
Claims (5)
1. The utility model provides a synchronous jacking equipment of PLC bridge which characterized in that includes:
the hydraulic oil cylinder is arranged between the box girder and the bridge pier and is used for jacking the box girder;
the auxiliary top cylinder is arranged between the box girder and the bridge pier, and the upper end and the lower end of the auxiliary top cylinder are respectively connected with the box girder and the bridge pier and used for assisting in supporting the box girder;
the pump station is connected with the hydraulic oil cylinder through a pipeline and used for driving the hydraulic oil cylinder to lift up;
the displacement sensor is respectively connected with the hydraulic oil cylinder and the auxiliary jacking cylinder and is used for monitoring the jacking heights of the hydraulic oil cylinder and the auxiliary jacking cylinder;
and the control system comprises an operation platform and a PLC (programmable logic controller) connected with the operation platform, wherein the PLC is respectively connected with the pump station and the displacement sensor and used for adjusting the output oil pressure of the pump station according to the monitoring signal of the displacement sensor.
2. The PLC bridge synchronous jacking device of claim 1, wherein the auxiliary jacking cylinder comprises a cylinder body, a sliding cylinder, a sliding shaft, a ratchet plate, a limiting shaft and a rotating shaft, the interior of the cylinder body is of a cavity structure, the sliding shaft is positioned in the middle of the cavity structure, the bottom end part of the sliding shaft is fixedly connected with the cylinder body, the sliding barrel is sleeved on the sliding shaft and is in sliding connection with the sliding shaft, the upper end part of the sliding cylinder penetrates through the upper part of the cylinder body, a plurality of ratchet plates are oppositely arranged in the cylinder body, each ratchet plate is inserted with a rotating shaft, two ends of the rotating shaft are fixedly connected to the inner wall of the cylinder body, a limiting shaft is fixedly arranged above one end of the ratchet plate, which is far away from each other, the ratchet plate is matched with the blocking part at one end close to each other and used for supporting the sliding barrel and rotating when the sliding barrel slides upwards.
3. The PLC bridge synchronous jacking device according to claim 2, wherein the blocking part is of a rectangular structure, the ratchet plate is of a shuttle-shaped structure, one end of the shuttle-shaped structure is located below the limiting shaft, and the other end of the shuttle-shaped structure is located below the rectangular structure.
4. The PLC bridge synchronous jacking device of claim 2, wherein a torsion spring is disposed between the rotating shaft and the ratchet plate.
5. The PLC bridge synchronous jacking device of claim 2, wherein a bottom plate is fixedly arranged at the bottom end of the cylinder body, the bottom plate is fixedly arranged on a bridge pier, a top plate is fixedly arranged at the top end of the sliding cylinder, and the top plate is fixedly arranged on a box girder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021016851.2U CN213389715U (en) | 2020-06-05 | 2020-06-05 | PLC bridge synchronous jacking equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021016851.2U CN213389715U (en) | 2020-06-05 | 2020-06-05 | PLC bridge synchronous jacking equipment |
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| CN213389715U true CN213389715U (en) | 2021-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021016851.2U Active CN213389715U (en) | 2020-06-05 | 2020-06-05 | PLC bridge synchronous jacking equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113955653A (en) * | 2021-10-11 | 2022-01-21 | 中联重科建筑机械(江苏)有限责任公司 | Self-climbing tower crane and multi-cylinder jacking system thereof |
| CN115404778A (en) * | 2022-07-25 | 2022-11-29 | 中铁十一局集团有限公司 | Long-span steel box girder pushing system for crossing existing road |
-
2020
- 2020-06-05 CN CN202021016851.2U patent/CN213389715U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113955653A (en) * | 2021-10-11 | 2022-01-21 | 中联重科建筑机械(江苏)有限责任公司 | Self-climbing tower crane and multi-cylinder jacking system thereof |
| CN115404778A (en) * | 2022-07-25 | 2022-11-29 | 中铁十一局集团有限公司 | Long-span steel box girder pushing system for crossing existing road |
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