CN211498487U - Box girder beam falling jack counter-force automatic control device - Google Patents
Box girder beam falling jack counter-force automatic control device Download PDFInfo
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- CN211498487U CN211498487U CN201921311099.1U CN201921311099U CN211498487U CN 211498487 U CN211498487 U CN 211498487U CN 201921311099 U CN201921311099 U CN 201921311099U CN 211498487 U CN211498487 U CN 211498487U
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Abstract
The utility model discloses a case roof beam jack counter-force automatic control device that falls, including bearing the device, it is provided with counter-force measuring device on the device to bear, it is connected with controlling means to bear the device, controlling means connects counter-force measuring device. The main control device controls the multi-way electromagnetic valve through the wireless module, and automatically controls the temporary support jack to stretch, so that the counter forces of the four fulcrums are adjusted and balanced, and the working efficiency is improved. In the counter-force measuring process, data are acquired through a hydraulic pressure sensor and a spoke type pressure sensor in a double-channel mode, and the data of the two sensors can be compared and checked to ensure that the counter-force of the temporary fulcrum is measured accurately. Data are collected in real time through the digital sensor, and errors caused by artificial reading are avoided.
Description
Technical Field
The utility model relates to a high-speed railway bridge construction field particularly, relates to a case roof beam falls roof beam jack counter-force automatic control device.
Background
Along with the large-scale construction of the highway network in China, the occupied ratio of the bridge is larger and larger, the precast beams are erected by a bridge erecting machine, the beam falling jacks are used as temporary supports, the supports are anchored by grouting, and the precast beams are not easy to replace after being erected, so that the service life of the precast beams must reach 100 years of the design life.
At present, each railway project pays attention to the quality of a precast beam, processes such as intelligent tensioning, intelligent grouting, intelligent static load experiments and the like are invented, but the control on the counter force of a beam falling jack is relatively neglected, the operation process of the beam falling jack is not skillful, the counter force of a temporary support jack is usually adjusted in order to be balanced and anchored as soon as possible, the four-point counter force of the jack is uneven, even two points are stressed, the 'internal damage' of the precast box beam is caused invisibly, the durability of a support and the precast beam is reduced, the normal creep of the precast beam is even influenced, and the influence on the stable running of a train is caused.
Although the existing specifications and technical guidelines have specific range regulations for temporary support reaction force, no specific measures are described, and the qualification rate is difficult to ensure in the construction process.
In actual construction, the existing temporary supporting jack device has the following unknown parts:
(1) in the counter force measuring process, only one data of the oil pressure gauge is displayed, and a checking device is not arranged, so that once a problem is found, the problem is not easy to perceive.
(2) The oil pressure gauge adopts manual reading, the reading error is large, and the phenomenon of wrong reading sometimes occurs.
(3) The average value of the counter forces of the four temporary supporting jacks and the difference value of the counter force value and the average value of each temporary supporting jack are manually calculated on site, the time consumption is long, and mistakes are easily made.
(4) The temporary supporting jack has the advantages that after the counter force exceeds the allowable value, the temporary supporting jack is manually operated and adjusted, and time and labor are wasted.
In summary, in order to improve the erection quality of the box girder, ensure balanced stress on the fulcrum, ensure accurate and reliable reaction measurement data, improve the automation degree, and reduce the restriction of equipment and personnel factors, a 900T box girder falling jack reaction control device capable of being automatically controlled needs to be developed.
An effective solution to the problems in the related art has not been proposed yet.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned technical problem among the correlation technique, the utility model provides a case roof beam falls roof beam jack counter-force automatic control device can solve above-mentioned problem.
In order to achieve the technical purpose, the technical scheme of the utility model is realized as follows:
the automatic counter-force control device for the box girder falling jack comprises a bearing device, wherein a counter-force measuring device is arranged on the bearing device, the bearing device is connected with a control device, and the control device is connected with the counter-force measuring device.
Furthermore, the control device is also in communication connection with a main control device.
Further, the control device comprises an extension PLC and a wireless module connected with the extension PLC.
Further, bear the device and include the jack, the jack supporting connection has hydraulic power unit, the jack with be provided with the multichannel solenoid valve between the hydraulic power unit, the multichannel solenoid valve is connected extension PLC.
Further, the counter-force measuring device is a spoke type pressure sensor, the spoke type pressure sensor is arranged at the bottom of the jack, and the spoke type pressure sensor is connected with the extension PLC.
Furthermore, a hydraulic pressure sensor is further arranged on the jack and connected with the extension PLC.
Furthermore, the master control device is a portable mobile terminal, and the portable mobile terminal receives the signals transmitted by the extension PLC through the wireless module in real time and sends out instruction signals to control the extension PLC to adjust the counter force of the jack.
Further, the jack is a 400T jack.
Furthermore, a manual-automatic switching device is arranged on the multi-way electromagnetic valve.
Furthermore, extension PLC is connected with the extension display screen.
The utility model has the advantages that:
(1) in the counter-force measuring process, data are acquired through a hydraulic pressure sensor and a spoke type pressure sensor in a double-channel mode, and the data of the two sensors can be compared and checked to ensure that the counter-force of the temporary fulcrum is measured accurately. Data are collected in real time through the digital sensor, and errors caused by artificial reading are avoided.
(2) The main control device controls the multi-way electromagnetic valve through the wireless module, and automatically controls the temporary support jack to stretch, so that the counter forces of the four fulcrums are adjusted and balanced, and the working efficiency is improved.
(3) The emergency control system has the functions of manual control and automatic control switching, and can perform manual control under the condition that the automatic control fails, so that an emergency effect is achieved.
(4) The number of operators is small, and only one operator is needed.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an automatic counter force control device of a box girder falling jack.
Fig. 2 is a schematic view of the actual installation of the automatic counter force control device of the box girder falling jack.
In the figure: 1. the system comprises a portable mobile terminal, 2. a hydraulic pump station, 3. a control device, 4. a multi-way electromagnetic valve, 5. a jack and 6. a spoke type pressure sensor.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art all belong to the protection scope of the present invention.
As shown in fig. 1, according to the embodiment of the utility model provides a case roof beam falls roof beam jack counter-force automatic control device, including bearing the device, bearing and being provided with counter-force measuring device on the device, bearing the device and being connected with controlling means 3, controlling means connects counter-force measuring device.
In a specific embodiment of the present invention, the control device is further communicatively connected to a main control device.
In a specific embodiment of the present invention, the control device includes an extension PLC and a wireless module connected to the extension PLC.
The utility model discloses an in a specific embodiment, it includes jack 5 to bear the device, jack 5 supporting connection has hydraulic power unit 2, jack 5 with be provided with multichannel solenoid valve 4 between the hydraulic power unit 2, multichannel solenoid valve 4 is connected extension PLC.
In an embodiment of the present invention, the counter force measuring device is a spoke type pressure sensor 6, the spoke type pressure sensor 6 is disposed at the bottom of the jack 5, and the spoke type pressure sensor 6 is connected to the extension PLC.
In an embodiment of the present invention, the jack 5 is further provided with a hydraulic pressure sensor, and the hydraulic pressure sensor is connected to the extension PLC.
In a specific embodiment of the present invention, the main control device is a portable mobile terminal 1, the portable mobile terminal 1 receives the extension PLC in real time and transmits the signal transmitted by the wireless module to the extension PLC, and sends an instruction signal to control the extension PLC to adjust the counter force of the jack.
In a specific embodiment of the present invention, the jack 5 is a 400T jack.
In an embodiment of the present invention, the multi-way electromagnetic valve is provided with a manual/automatic switching device.
In a specific embodiment of the present invention, the extension PLC is connected to an extension display screen.
For the convenience of understanding the above technical solutions of the present invention, the above technical solutions of the present invention are explained in detail through specific use modes below.
When specifically using, according to the utility model discloses a roof beam jack counter-force automatic control device falls in case roof beam, when spoke formula pressure sensor 6 experienced the load, give extension PLC load signal transmission, extension PLC transmits for portable mobile terminal 1 through wireless module, portable mobile terminal 1 receives the load signal, calculate, after the analysis, give extension PLC commander, extension PLC receives the instruction after, control multichannel solenoid valve 4 carries out the lift adjustment to jack 5 of interim support beam of falling, accord with the designing requirement until the counter-force.
The hydraulic pump station 2 is used for providing hydraulic oil for the jack 5, and the lifting of the jack 5 can be controlled by controlling the opening and closing of the electromagnetic valve 4. The portable mobile terminal 1 can also receive data of the spoke type pressure sensor 6 and the hydraulic pressure sensor and check and compare the data. And if the deviation is large, judging that the equipment is in failure.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The automatic counter-force control device for the box girder falling jack comprises a bearing device and is characterized in that a counter-force measuring device is arranged on the bearing device, the bearing device is connected with a control device (3), and the control device is connected with the counter-force measuring device.
2. The automatic box girder falling jack counterforce control device of claim 1, wherein: the control device is also in communication connection with a main control device.
3. The automatic box girder falling jack counterforce control device of claim 2, characterized in that: the control device comprises an extension PLC and a wireless module connected with the extension PLC.
4. The automatic box girder falling jack counterforce control device of claim 3, wherein: bear the device and include jack (5), jack (5) supporting connection has hydraulic power unit (2), jack (5) with be provided with multichannel solenoid valve (4) between hydraulic power unit (2), multichannel solenoid valve (4) are connected extension PLC.
5. The automatic box girder falling jack counterforce control device of claim 4, wherein: the counter force measuring device is a spoke type pressure sensor (6), the spoke type pressure sensor (6) is arranged at the bottom of the jack (5), and the spoke type pressure sensor (6) is connected with the branch PLC.
6. The automatic box girder falling jack counterforce control device of claim 5, wherein: and a hydraulic pressure sensor is further arranged on the jack (5), and the hydraulic pressure sensor is connected with the branch PLC.
7. The automatic box girder falling jack counterforce control device of claim 6, wherein: the main control device is a portable mobile terminal (1), and the portable mobile terminal (1) receives signals transmitted by the extension PLC through the wireless module in real time and sends out instruction signals to control the extension PLC to adjust the counter force of the jack.
8. The automatic box girder falling jack counterforce control device of claim 4, wherein: the jack (5) is a 400T jack.
9. The automatic box girder falling jack counterforce control device of claim 4, wherein: and a manual and automatic switching device is arranged on the multi-way electromagnetic valve.
10. The automatic box girder falling jack counterforce control device of claim 3, wherein: the extension PLC is connected with an extension display screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921311099.1U CN211498487U (en) | 2019-08-14 | 2019-08-14 | Box girder beam falling jack counter-force automatic control device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921311099.1U CN211498487U (en) | 2019-08-14 | 2019-08-14 | Box girder beam falling jack counter-force automatic control device |
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| CN211498487U true CN211498487U (en) | 2020-09-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110485304A (en) * | 2019-08-14 | 2019-11-22 | 中铁十六局集团有限公司 | A kind of box beam falls beam jack counter-force automatic control device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110485304A (en) * | 2019-08-14 | 2019-11-22 | 中铁十六局集团有限公司 | A kind of box beam falls beam jack counter-force automatic control device |
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