CN221522721U - System for adjusting stress of herringbone door back pull rod - Google Patents
System for adjusting stress of herringbone door back pull rod Download PDFInfo
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- CN221522721U CN221522721U CN202323467650.0U CN202323467650U CN221522721U CN 221522721 U CN221522721 U CN 221522721U CN 202323467650 U CN202323467650 U CN 202323467650U CN 221522721 U CN221522721 U CN 221522721U
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- 230000003068 static effect Effects 0.000 claims abstract description 41
- 230000001360 synchronised effect Effects 0.000 claims abstract description 23
- 238000012806 monitoring device Methods 0.000 claims abstract description 20
- 238000012544 monitoring process Methods 0.000 claims abstract description 13
- 238000012360 testing method Methods 0.000 claims description 21
- 238000004891 communication Methods 0.000 claims description 5
- 230000008054 signal transmission Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
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Abstract
The utility model provides a system for adjusting stress of a herringbone door back pull rod, which comprises a static stress monitoring device, a synchronous hydraulic jack device and a main control device, wherein the synchronous hydraulic jack device is connected with the main control device; the static stress monitoring device is used for monitoring the stress value of the herringbone door back pull rod; the synchronous hydraulic jack device is used as a herringbone door back pull rod adjusting and boosting device; the master control device controls the action of the synchronous hydraulic jack device according to the back pull rod stress value monitored by the static stress monitoring device, so that the accurate adjustment of the herringbone door back pull rod is realized. The system can realize the accurate adjustment of the herringbone door back pull rod according to the actual stress value of the back pull rod and the lifting force of the hydraulic jack, and further effectively improve the adjustment efficiency.
Description
Technical Field
The utility model belongs to the technical field of a herringbone door of a ship lock, and particularly relates to a herringbone door back pull rod stress adjustment system.
Background
The crossed stress back pull rod is arranged on the back surface of the herringbone gate of the ship lock, and the back pull rod has the main function of stressing the herringbone gate She Shijia, so that the gate leaves can keep enough rigidity in the working process. One end of the back pull rod is welded on the door body, the other end of the back pull rod passes through a support hole welded on the door body to be connected by a screw pair, and the stress of the back pull rod can be adjusted by adjusting a nut at the end part. The upper half adjusting part of the back pull rod is arranged at the top end, the lower half adjusting part is arranged at the bottom, and the adjusting mechanism is only locked in the tension direction of the back pull rod, so that the back pull rod is not limited to move when the back pull rod is loose under abnormal conditions, and can not arch.
The cross section of the herringbone gate body is of a space thin-wall structure with a side column semi-closed and an opening in the middle, under the working conditions of free suspension, opening and closing under the action of dead weight, the gate body can generate larger torsional deformation of the upstream of the tilting direction, the back pull rod is arranged on the herringbone gate and is stressed, the torsional rigidity of the gate can be effectively improved, and the torsional deformation on the gate is reduced. Suitable back-tie stress minimizes torsional deformation of the gate. Therefore, it is important to optimize the stress debugging of the reverse pull rod of the herringbone gate and to perform the stress debugging work on site according to the monitoring result.
At present, when the back pull rod stress adjustment is carried out by adopting a manual or electric hydraulic ram in the herringbone door back pull rod adjustment process, the accurate control cannot be realized according to the actual stress value of the back pull rod due to the fact that the related parameters of the hydraulic ram cannot be directly displayed, and the adjustment efficiency is low.
Disclosure of utility model
In order to solve the technical problems at present, the main purpose of the utility model is to provide a system for adjusting the stress of a herringbone door back pull rod, which can realize the accurate adjustment of the herringbone door back pull rod according to the actual stress value of the back pull rod and the lifting force of a hydraulic jack, thereby effectively improving the adjustment efficiency.
In order to achieve the technical characteristics, the aim of the utility model is realized in the following way: a system for adjusting stress of a herringbone door back pull rod comprises a static stress monitoring device, a synchronous hydraulic jack device and a main control device; the static stress monitoring device is used for monitoring the stress value of the herringbone door back pull rod; the synchronous hydraulic jack device is used as a herringbone door back pull rod adjusting and boosting device; the master control device controls the action of the synchronous hydraulic jack device according to the back pull rod stress value monitored by the static stress monitoring device, so that the accurate adjustment of the herringbone door back pull rod is realized.
The static stress monitoring device comprises a strain sensor arranged on the herringbone door back pull rod, and the strain sensor is in communication connection with a static stress test collector;
the static stress test collector can communicate with a plurality of strain sensors simultaneously.
The strain sensor is fixed on the herringbone door back pull rod, wherein the fixed position of the strain sensor is specifically as follows:
A perpendicular line perpendicular to the central axis of the back pull rod is intersected with the central axis B on the inner side plane of the back pull rod, the edge line of the back pull rod of the herringbone door is intersected with two points A ', C', the perpendicular line which is intersected with two points A 'C' on the transverse axis A 'C' and is separated from two ends L is intersected with two points A, C, the perpendicular line which is intersected with the outer side face of the rod piece on the cross section which passes through the AC connecting line is intersected with the DF line E, B is the central point of the measuring point for calculating stress, A, C is the central point of the measuring point for checking, E is the monitoring measuring point for measuring absolute zero value of the back pull rod, and each measuring point is adhered with a strain sensor and is connected with a static stress test collector.
The synchronous hydraulic jack device comprises a hydraulic jack, an electromagnetic valve, an oil pump motor, a high-pressure oil pipe, an oil tank, a pressure sensor and a PLC electric cabinet; the pressure sensor is arranged on the electromagnetic valve; the oil pump motor is connected with the PLC electric cabinet through a cable, the oil inlet end of the oil pump motor is connected with the oil tank through an oil pipe, and the outlet of the oil pump motor is connected with the hydraulic jack through an electromagnetic valve and a high-pressure oil pipe.
The main control device comprises a signal sending device and a movable computer, and the signal sending device is in communication connection with a static stress test collector of the static stress monitoring device; the movable computer is connected with the PLC electric cabinet; the PLC electric cabinet is connected with the pressure sensor; the PLC electric cabinet is connected with the electromagnetic valve; the mobile computer is connected with the signal transmitting device.
The movable computer of the main control device can read the numerical value of the static stress test collector in real time and monitor the real-time stress value of each measuring point; the movable computer can write the real-time stress value of each measuring point into the PLC electric cabinet; the movable computer can set the stress value of the back pull rod and write in the PLC electric cabinet; the PLC electric cabinet monitors the real-time pressure value of the electromagnetic valve through the pressure sensor.
The lifting beam and the fixing nut are arranged at the end part of the back pull rod, a hydraulic jack is respectively arranged at the two ends of the lifting beam, lifting of the hydraulic jack is controlled through the PLC electric cabinet, tension load of the back pull rod is transferred to the lifting beam and the fixing nut, and then the back pull rod fastening nut is fastened, so that the adjustment of the back pull rod is realized.
The value of L is 20mm.
The utility model has the following beneficial effects:
1. By adopting the system provided by the utility model, the accurate adjustment of the herringbone door back pull rod can be realized according to the actual stress value of the back pull rod and the lifting force of the hydraulic jack, and the adjustment precision and the adjustment efficiency are effectively improved.
2. By adopting the static stress monitoring device provided by the utility model, the real-time acquisition of the stress of the back pull rod can be realized, and a data basis is provided for the subsequent stress adjustment.
3. The stress value of the back pull rod can be detected in real time through the strain sensor, the strain of the back pull rod is collected through the strain sensor in the adjustment process, and then the strain is transmitted to the static stress test collector, so that the collection of the stress is realized.
4. By adopting the arrangement of the monitoring and measuring, the accuracy and the reliability of the subsequent stress monitoring are effectively ensured.
5. The synchronous hydraulic jack device can be used for providing an adjusting force in the adjusting process.
6. The main control device can realize automatic control of the whole system, improves the degree of automation, and improves the adjustment precision.
7. The automatic operation in the whole detection process can be realized through the static stress test software.
Drawings
The utility model is further described below with reference to the drawings and examples.
Fig. 1 is a system configuration diagram of the present utility model.
Fig. 2 is a connection structure diagram of the strain sensor of the present utility model.
Fig. 3 is a partial block diagram of the system of the present utility model.
Fig. 4 is a stress sensor fixing portion map.
In the figure: the device comprises a strain sensor 1, a static stress test collector 2, a hydraulic jack 3, an electromagnetic valve 4, an oil pump motor 5, a high-pressure oil pipe 6, an oil tank 7, a pressure sensor 8, a PLC electric cabinet 9, a signal transmitting device 10 and a movable computer 11.
Detailed Description
Embodiments of the present utility model will be further described with reference to the accompanying drawings.
Example 1:
As shown in fig. 1-4, a system for adjusting stress of a herringbone door back pull rod comprises a static stress monitoring device, a synchronous hydraulic jack device and a main control device; the static stress monitoring device is used for monitoring the stress value of the herringbone door back pull rod; the synchronous hydraulic jack device is used as a herringbone door back pull rod adjusting and boosting device; the master control device controls the action of the synchronous hydraulic jack device according to the back pull rod stress value monitored by the static stress monitoring device, so that the accurate adjustment of the herringbone door back pull rod is realized. The system can realize the accurate adjustment of the herringbone door back pull rod according to the actual stress value of the back pull rod and the lifting force of the hydraulic jack, effectively improve the adjustment precision and the adjustment efficiency, and in the specific adjustment process, the lifting speed and the lifting direction of the hydraulic jack are set by setting the deviation threshold value of the actual stress value F1 of the back pull rod and the real-time pressure value F2 of the electromagnetic valve, and the two hydraulic jacks are started to synchronously lift. When the set back tension stress value F is equal to the monitored back tension rod actual stress value F1 through the comparison of the PLC electric cabinet, stopping the hydraulic jack, and finishing the back tension rod adjustment; and when the deviation between the actual stress value F1 of the back pull rod detected by the PLC electric cabinet and the real-time pressure value F2 of the electromagnetic valve exceeds a set threshold value, stopping the lifting of the hydraulic jack.
Further, the static stress monitoring device comprises a strain sensor 1 arranged on the herringbone door back pull rod, wherein the strain sensor 1 is communicated with a static stress test collector 2; the static stress test collector 2 is capable of communicating with a plurality of strain sensors 1 simultaneously. The stress value of the back pull rod can be detected in real time through the strain sensor 1, and in the adjustment process, the strain of the back pull rod is collected through the strain sensor 1, so that the strain is transmitted to the static stress test collector 2, and further the collection of the stress is realized.
In this embodiment, the static stress test collector 2 is connected to the mobile computer through a Zigbee wireless network.
Further, the strain sensor 1 is fixed on the herringbone door back pull rod, wherein the fixed position of the strain sensor 1 is specifically: a perpendicular line perpendicular to the central axis of the back pull rod is intersected with the central axis B on the inner side plane of the back pull rod, the edge line of the back pull rod of the herringbone door is intersected with two points A ', C', the perpendicular line which is 20mm away from the two ends on the transverse axis A 'C' is intersected with two points A, C, the perpendicular line which is intersected with the outer side surface of the rod piece on the cross section which passes through the AC connecting line is intersected with the DF line on E, B is the central point of the measuring point for calculating stress, A, C is the central point of the measuring point for checking, E is the monitoring measuring point for measuring absolute zero value of the back pull rod, and each measuring point is adhered with the strain sensor 1 and is connected with the static stress test collector 2. By adopting the arrangement of the monitoring and measuring, the accuracy and the reliability of the subsequent stress monitoring are effectively ensured.
In this embodiment, the strain gauge is selected as the strain sensor 1, the strain gauge is selected as the BE120-10AA strain gauge, a half-bridge test circuit is adopted, the sampling rate of the collector is not lower than 5Hz, and the sensitivity is not lower than 1 mu epsilon.
Further, the synchronous hydraulic jack device comprises a hydraulic jack 3, an electromagnetic valve 4, an oil pump motor 5, a high-pressure oil pipe 6, an oil tank 7, a pressure sensor 8 and a PLC electric cabinet 9; the pressure sensor 8 is arranged on the electromagnetic valve 4; the oil pump motor 5 is connected with the PLC electric cabinet 9 through a cable, the oil inlet end of the oil pump motor 5 is connected with the oil tank 7 through an oil pipe, and the outlet of the oil pump motor 5 is connected with the hydraulic jack 3 through the electromagnetic valve 4 and the high-pressure oil pipe 6. The synchronous hydraulic jack device can be used for providing an adjusting force in the adjusting process. In the working process, during specific adjustment, the back pull rod is pulled by the hydraulic jack 3 through controlling the hydraulic jack 3, and then the tension adjustment is carried out on the pulled rod.
Further, the main control device comprises a signal sending device 10 and a movable computer 11, wherein the signal sending device 10 is in communication connection with the static stress test collector 2 of the static stress monitoring device; the movable computer 11 is connected with the PLC electric cabinet 9; the PLC electric cabinet 9 is connected with the pressure sensor 8; the PLC electric cabinet 9 is connected with the electromagnetic valve 4; the portable computer 11 is connected to the signal transmission device 10. The main control device can realize automatic control of the whole system, improves the degree of automation, and improves the adjustment precision.
In this embodiment, the signal transmitting device 10 is a Zigbee signal transmitting device, where the static stress test collector 2 is connected to the signal transmitting device 10 through Zigbee signals.
Further, the movable computer 11 of the main control device can read the numerical value of the static stress test collector 2 in real time, and monitor the real-time stress value of each measuring point; the movable computer 11 can write the real-time stress value of each measuring point into the PLC electric cabinet 9; the movable computer can set the stress value of the back pull rod and write in the PLC electric cabinet 9; the real-time pressure value of the electromagnetic valve 4 is monitored by the PLC electric cabinet 9 through the pressure sensor 8. The automatic operation in the whole detection process can be realized through the main control device.
Further, the PLC electric cabinet of the PLC electric cabinet 9 can control the oil pump motor 5 and the electromagnetic valve 4 to act according to the acting direction and the acting speed of the hydraulic jack 3 set by the movable computer 11, so that the hydraulic jack 3 can ascend or descend; the PLC electric cabinet can compare the set back pull rod stress value F with the monitored back pull rod actual stress value F1, and when the set back pull rod stress value F and the monitored back pull rod actual stress value F1 are equal, the hydraulic jack 3 is stopped; the PLC electric cabinet can control the synchronous action of a plurality of hydraulic jacks 3 or the action of a single hydraulic jack 3; in the lifting process of the hydraulic jack 3, when the PLC electric cabinet detects that the deviation between the monitored actual stress value F1 of the back pull rod and the real-time pressure value F2 of the electromagnetic valve exceeds a set threshold value, the deviation indicates that the stress of the back pull rod is uneven, the lifting of the hydraulic jack 3 is stopped, and at the moment, whether the back pull rod has a blocking problem or not is checked. The synchronous control of the whole synchronous hydraulic jack device can be realized through the PLC electric cabinet 9.
Further, a jacking beam 12 and a fixing nut 13 are arranged at the end part of the back pull rod, a hydraulic jack 3 is respectively arranged at two ends of the jacking beam 12, the jacking of the hydraulic jack 3 is controlled through a PLC electric cabinet 9, the tension load of the back pull rod is transferred to the jacking beam 12 and the fixing nut 13, and then the back pull rod fastening nut 14 is fastened, so that the adjustment of the back pull rod is realized. By the arrangement of the hydraulic jack 3 described above, it is ensured that it can provide a tensioning force.
Example 2:
The method for adjusting the herringbone door back pull rod by adopting the herringbone door back pull rod stress adjustment system comprises the following steps:
Step 1, system layout:
according to the system structure, arranging a static stress monitoring device, a synchronous hydraulic jack device and a main control device which are required by the installation system;
step 2, determining an absolute zero position of the back pull rod:
The lifting of the hydraulic jack 3 is controlled through the PLC electric cabinet 9, the tension load of the back pull rod is transferred to the lifting beam 12 and the fixing nut 13, and then the back pull rod fastening nut 14 is loosened, so that the back pull rod is in a loose state; measuring the strain values of the measuring points, and then exchanging leads of the A, C two measuring point strain sensors 1 for measurement, wherein the values are opposite in sign, basically equal in absolute value and not more than 1 mu epsilon in maximum difference; comparing B, E stress values of the two measuring points to be equal;
step 3, setting the strain sensor 1 to zero:
adjusting the back pull rod end nuts so as to balance each strain sensor 1 and enable the values of the strain sensors 1 to be zero;
Step 4, setting adjustment parameters:
Setting a back pull rod stress value on a main control device, setting a deviation threshold value of an actual back pull rod stress value F1 and a real-time pressure value F2 of an electromagnetic valve, and setting the lifting speed and the lifting direction of a hydraulic jack;
Step 5, synchronous jacking of the jack:
Starting the hydraulic jack 3 through the main control device and synchronously lifting;
Step 6, monitoring stress:
When the set back pull rod stress value F is equal to the monitored back pull rod actual stress value F1 through the comparison of the PLC electric cabinet 9, stopping the hydraulic jack, and finishing the back pull rod adjustment; when the PLC electric cabinet detects that the deviation between the actual stress value F1 of the back pull rod and the real-time pressure value F2 of the electromagnetic valve exceeds a set threshold value, stopping the lifting of the hydraulic jack;
Step 7, locking the position of the back pull rod:
After the stress adjustment of the back pull rod is completed, the back pull rod fastening nut 14 is locked to fasten the back pull rod, and the hydraulic jack is controlled to fall to the original position through the PLC electric cabinet 9.
Claims (8)
1. The system for adjusting the stress of the herringbone door back pull rod is characterized by comprising a static stress monitoring device, a synchronous hydraulic jack device and a main control device; the static stress monitoring device is used for monitoring the stress value of the herringbone door back pull rod; the synchronous hydraulic jack device is used as a herringbone door back pull rod adjusting and boosting device; the master control device controls the action of the synchronous hydraulic jack device according to the back pull rod stress value monitored by the static stress monitoring device, so that the accurate adjustment of the herringbone door back pull rod is realized.
2. The system for herringbone door back tension rod stress adjustment as recited in claim 1, wherein: the static stress monitoring device comprises a strain sensor (1) arranged on a herringbone door back pull rod, and the strain sensor (1) is in communication connection with a static stress test collector (2);
The static stress test collector (2) can communicate with a plurality of strain sensors (1) at the same time.
3. A system for herringbone door back tension rod stress adjustment as recited in claim 2, wherein: the strain sensor (1) is fixed on the herringbone door back pull rod, wherein the fixed position of the strain sensor (1) is specifically as follows:
A perpendicular line perpendicular to the central axis of the back pull rod is intersected with the central axis B on the inner side plane of the back pull rod, the edge line of the back pull rod of the herringbone door is intersected with two points A ', C', the perpendicular line which is intersected with two ends L from the transverse axis A 'C' is intersected with two points A, C, the perpendicular line which is intersected with the outer side face of the rod piece from the transverse axis L of the AC connecting line is intersected with the DF line E, B is the central point of the measuring point for calculating stress, A, C is the central point of the measuring point for checking, E is the monitoring measuring point for measuring absolute zero value of the back pull rod, and each measuring point is adhered with a strain sensor (1) and is connected with a static stress test collector (2).
4. A system for herringbone door back tension rod stress adjustment as recited in claim 3, wherein: the synchronous hydraulic jack device comprises a hydraulic jack (3), an electromagnetic valve (4), an oil pump motor (5), a high-pressure oil pipe (6), an oil tank (7), a pressure sensor (8) and a PLC electric control box (9); the pressure sensor (8) is arranged on the electromagnetic valve (4); the oil pump motor (5) is connected with the PLC electric cabinet (9) through a cable, the oil inlet end of the oil pump motor (5) is connected with the oil tank (7) through an oil pipe, and the outlet of the oil pump motor (5) is connected with the hydraulic jack (3) through the electromagnetic valve (4) and the high-pressure oil pipe (6).
5. The system for herringbone door back tension rod stress adjustment as recited in claim 4, wherein: the main control device comprises a signal transmitting device (10) and a movable computer (11), wherein the signal transmitting device (10) is in communication connection with a static stress test collector (2) of the static stress monitoring device; the movable computer (11) is connected with the PLC electric cabinet (9); the PLC electric cabinet (9) is connected with the pressure sensor (8); the PLC electric cabinet (9) is connected with the electromagnetic valve (4); the mobile computer (11) is connected to the signal transmission device (10).
6. The system for herringbone door back tension rod stress adjustment as recited in claim 5, wherein: the movable computer (11) of the main control device can read the numerical value of the static stress test collector (2) in real time and monitor the real-time stress value of each measuring point; the movable computer (11) can write the real-time stress value of each measuring point into the PLC electric cabinet (9); the movable computer can set the stress value of the back pull rod and write in the PLC electric cabinet (9); the PLC electric cabinet (9) monitors the real-time pressure value of the electromagnetic valve (4) through the pressure sensor (8).
7. The system for herringbone door back tension rod stress adjustment of claim 6, wherein: a jacking beam (12) and a fixing nut (13) are arranged at the end part of the back pull rod, a hydraulic jack (3) is respectively arranged at two ends of the jacking beam (12), the jacking of the hydraulic jack (3) is controlled through a PLC electric cabinet (9), the tension load of the back pull rod is transferred to the jacking beam (12) and the fixing nut (13), and then the back pull rod fastening nut (14) is fastened, so that the adjustment of the back pull rod is realized.
8. A system for herringbone door back tension rod stress adjustment as recited in claim 3, wherein: the value of L is 20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323467650.0U CN221522721U (en) | 2023-12-19 | 2023-12-19 | System for adjusting stress of herringbone door back pull rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323467650.0U CN221522721U (en) | 2023-12-19 | 2023-12-19 | System for adjusting stress of herringbone door back pull rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221522721U true CN221522721U (en) | 2024-08-13 |
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ID=92177405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323467650.0U Active CN221522721U (en) | 2023-12-19 | 2023-12-19 | System for adjusting stress of herringbone door back pull rod |
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| Country | Link |
|---|---|
| CN (1) | CN221522721U (en) |
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2023
- 2023-12-19 CN CN202323467650.0U patent/CN221522721U/en active Active
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