CN216618063U - Synchronous lifting device for passenger roller bridge - Google Patents
Synchronous lifting device for passenger roller bridge Download PDFInfo
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- CN216618063U CN216618063U CN202122544823.9U CN202122544823U CN216618063U CN 216618063 U CN216618063 U CN 216618063U CN 202122544823 U CN202122544823 U CN 202122544823U CN 216618063 U CN216618063 U CN 216618063U
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- oil cylinder
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Abstract
The utility model discloses a synchronous lifting device for a passenger roller bridge, which comprises a bridge body, a bridge body upright post, a hydraulic oil cylinder and a passenger roller bridge body, wherein the bridge body upright post is arranged on the bridge body; the hydraulic station is characterized in that external oil cylinder sensors are respectively arranged on A, B two hydraulic oil cylinders, the external oil cylinder sensors are connected with a PLC (programmable logic controller) electrical control system in an electric control cabinet through a circuit, and the PLC electrical control system is connected with a hydraulic control valve on a hydraulic station through a circuit; the PLC electric control system controls the hydraulic control valve to act through an electric signal, and the hydraulic control valve controls A, B two hydraulic oil cylinders to lift; the two hydraulic oil cylinders keep synchronism when the bridge body is lifted, the deviation is not more than 30mm, automatic deviation correction and adjustment can be carried out, the deviation exceeds 50mm, the two hydraulic oil cylinders stop acting, and the bridge body is prevented from being damaged due to the fact that the bridge body is lifted and deviated too much and is twisted.
Description
Technical Field
The utility model relates to the technical field of passenger roller bridges, in particular to a synchronous lifting device of a passenger roller bridge; the hydraulic control system is mainly applied to the passenger-rolling industry, and is characterized in that in the lifting process of a passenger-rolling bridge, two hydraulic oil cylinders are controlled to lift through a hydraulic electric control system, so that the displacement deviation of the bridge body in the lifting process is controlled within 30mm and can be automatically corrected; and when the displacement deviation of the bridge body exceeds 50mm, the two hydraulic oil cylinders stop acting, so that the bridge body is prevented from being damaged due to excessive torsion caused by excessive displacement deviation.
Background
The passenger roller bridge is an important link for connecting a passenger roller ship with a quay wall and is an important passage for getting on and off the passenger roller ship by vehicles; therefore, the safety of the bridge body is required to be ensured at all times, and the safe and efficient boarding and alighting of vehicles can be ensured.
The traditional passenger roller bridge mainly comprises a bridge body, a working oil cylinder, a hydraulic electric control system, a passenger roller bridge body and an upright post; the configured lifting oil cylinder has no automatic deviation rectifying function of displacement deviation, and a bridge body is extremely easy to be twisted to damage under the condition of overlarge displacement deviation in the lifting process of the bridge body, so that safe boarding and disembarking of passing vehicles cannot be ensured.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provide a synchronous lifting device for a passenger roller bridge.
The technical scheme provided by the utility model is as follows: a synchronous lifting device of a passenger roller bridge comprises a bridge body, a bridge body upright post, a hydraulic oil cylinder and a connecting plate; the bridge body is connected with one end of a hydraulic oil cylinder through a connecting plate, the other end of the hydraulic oil cylinder is suspended on an upright post of the bridge body, and the hydraulic oil cylinders are A, B two hydraulic oil cylinders to form a passenger roller bridge lifting mechanism; the hydraulic station is characterized in that external oil cylinder sensors are respectively arranged on A, B hydraulic oil cylinders, the external oil cylinder sensors are connected with a PLC (programmable logic controller) electrical control system in an electric control cabinet through a circuit, and the PLC electrical control system is connected with a hydraulic control valve on a hydraulic station through a circuit; the PLC electric control system controls the hydraulic control valve to act through electric signals, and the hydraulic control valve controls A, B two hydraulic oil cylinders to lift.
The utility model has the beneficial effects that: 1. the two hydraulic oil cylinders are provided with oil cylinder external sensors, and feed back displacement deviation data signals to the PLC electrical control system in the lifting process of the oil cylinders; 2. and a PLC electric control system is adopted to give signals to the electromagnetic control valves to control the lifting speeds of the two hydraulic oil cylinders, so that the displacement deviation of the two hydraulic oil cylinders is within an allowable safety range.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a hydraulic schematic of the present invention.
Detailed Description
For a better understanding and practice, the present invention is described in detail below with reference to the accompanying drawings.
As shown in fig. 1 and 2, a synchronous lifting device for a passenger roller bridge comprises a bridge body 5, a bridge body upright post 1, a hydraulic oil cylinder 3 and a connecting plate 4; the bridge body 5 is connected with one end of a hydraulic oil cylinder 3 through a connecting plate 4, the other end of the hydraulic oil cylinder 3 is hung on the bridge body upright post 1, and the hydraulic oil cylinders 3 are A, B and form a passenger roller bridge lifting mechanism; respectively mounting oil cylinder external sensors 2 on A, B two hydraulic oil cylinders, wherein the oil cylinder external sensors 2 are connected with a PLC electrical control system circuit, and the PLC electrical control system is connected with a hydraulic control valve circuit to input and output data; in order to ensure that reliable data of displacement deviation of A, B two hydraulic oil cylinders of a bridge body is obtained, pull ropes on external sensors 2 of A, B two hydraulic oil cylinders are fixed on the bridge floor, the displacement data are obtained along with lifting of the bridge body, the data are transmitted to a PLC (programmable logic controller) electrical control system for comparison, when the lifting displacement deviation of the two hydraulic oil cylinders exceeds 30mm, the external sensors 2 of the oil cylinders transmit the data to the PLC electrical control system, the PLC electrical control system compares the internal data according to a set program and outputs an instruction to a hydraulic control valve, the hydraulic control valve controls oil supply of the hydraulic oil cylinders, synchronization of the two hydraulic oil cylinders is achieved, and the bridge body is prevented from being damaged due to torsion.
The utility model relates to a synchronous lifting device of a passenger roller bridge, which has the working principle that: as shown in fig. 2, two hydraulic cylinders are responsible for lifting the bridge body, and each hydraulic cylinder is provided with a displacement sensor for feeding back the stroke of the hydraulic cylinder in real time;
the hydraulic control valve controls the hydraulic oil cylinder to extend or retract;
the hydraulic station provides power for all actions; after the hydraulic station is started, when a synchronous ascending instruction is executed, the hydraulic control valve YV5 is powered on, the hydraulic oil cylinders are retracted, the bridge body ascends, the stroke of the hydraulic oil cylinders is fed back to the PLC electrical control system by an external sensor, the program automatically compares the stroke difference values of the two hydraulic oil cylinders, when the difference value exceeds 30mm, leveling action is executed, the hydraulic control valve YV7 or YV9 is powered on, and the oil inlet amount of the hydraulic oil cylinder at a low position is increased until the height difference is less than 5 mm;
when a synchronous descending instruction is executed, the hydraulic control valve YV6 is powered on, the hydraulic oil cylinders extend out, the bridge body descends, the strokes of the hydraulic oil cylinders are fed back to the PLC electrical control system by the external sensor, the program automatically compares the stroke difference values of the two hydraulic oil cylinders, when the difference value exceeds 30mm, leveling action is executed, the hydraulic control valve YV8 or YV10 is powered on, and the oil inlet amount of the hydraulic oil cylinder at a high position is increased until the height difference is less than 5 mm;
if the height difference is larger than 50mm, the hydraulic oil cylinder stops acting, and after an operator checks the fault, the hydraulic oil cylinder is manually leveled and then normally operated.
It should be understood that technical features not described in detail in the specification belong to the prior art. Although the present invention has been described with reference to the accompanying drawings, the present invention is not limited to the above embodiments, which are only illustrative and not restrictive, and those skilled in the art can make various modifications without departing from the spirit and scope of the utility model.
Claims (1)
1. A synchronous lifting device of a passenger roller bridge comprises a bridge body, a bridge body upright post, a hydraulic oil cylinder and a connecting plate; the bridge body is connected with one end of a hydraulic oil cylinder through a connecting plate, the other end of the hydraulic oil cylinder is suspended on an upright post of the bridge body, and the hydraulic oil cylinders are A, B two hydraulic oil cylinders to form a passenger roller bridge lifting mechanism; the hydraulic station is characterized in that external oil cylinder sensors are respectively arranged on A, B hydraulic oil cylinders, the external oil cylinder sensors are connected with a PLC (programmable logic controller) electrical control system in an electric control cabinet through a circuit, and the PLC electrical control system is connected with a hydraulic control valve on a hydraulic station through a circuit; the PLC electric control system controls the hydraulic control valve to act through electric signals, and the hydraulic control valve controls A, B two hydraulic oil cylinders to lift.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122544823.9U CN216618063U (en) | 2021-10-22 | 2021-10-22 | Synchronous lifting device for passenger roller bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122544823.9U CN216618063U (en) | 2021-10-22 | 2021-10-22 | Synchronous lifting device for passenger roller bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216618063U true CN216618063U (en) | 2022-05-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122544823.9U Active CN216618063U (en) | 2021-10-22 | 2021-10-22 | Synchronous lifting device for passenger roller bridge |
Country Status (1)
| Country | Link |
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| CN (1) | CN216618063U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114810705A (en) * | 2022-06-28 | 2022-07-29 | 江苏哈斯顿液压有限公司 | Hydraulic control system based on multi-cylinder synchronization |
-
2021
- 2021-10-22 CN CN202122544823.9U patent/CN216618063U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114810705A (en) * | 2022-06-28 | 2022-07-29 | 江苏哈斯顿液压有限公司 | Hydraulic control system based on multi-cylinder synchronization |
| CN114810705B (en) * | 2022-06-28 | 2022-09-16 | 江苏哈斯顿液压有限公司 | Hydraulic control system based on multi-cylinder synchronization |
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