CN102966070B - Hydraulic miter gate bottom pivot destruction and simulation laboratory device - Google Patents
Hydraulic miter gate bottom pivot destruction and simulation laboratory device Download PDFInfo
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- CN102966070B CN102966070B CN201210465289.5A CN201210465289A CN102966070B CN 102966070 B CN102966070 B CN 102966070B CN 201210465289 A CN201210465289 A CN 201210465289A CN 102966070 B CN102966070 B CN 102966070B
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- miter
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Abstract
The invention provides a hydraulic miter gate bottom pivot destruction and simulation laboratory device. The device comprises a gate leaf; a bracket used for supporting the gate leaf is arranged at one side of the gate leaf; a top pivot is arranged on the upper end of one side of the gate leaf; the top pivot is connected with the bracket through a supporting device; the lower end of the corresponding side of the gate leaf is connected with a bottom pivot; the connecting line between the top pivot and the bottom pivot forms a rotary shaft of the gate leaf; the gate leaf is further connected with a driving device which drives the gate leaf to rotate through a driving mechanism. The device provided by the invention can be used for really simulating the running conditions of a miter gate under different conditions (such as gate weight, rotary speed, back tension, flooded water depth, fault classification, etc.); certain guidance can be provided for the vibration detection distribution and signal analysis treatment for the real gate through acquiring various vibration signals of the gate body and researching the influence of various factors to the vibration property of the gate body; and thus, the device provided by the invention plays a significant role in the research on the miter gate state maintenance based on the vibration signal.
Description
Technical field
The present invention relates to simulation test device, especially a kind of end pivot crash simulation laboratory installation for the water conservancy project miter gate in water-control project.
Background technology
The volume of Miter Lock Gates is large, complex structure, weight can reach more than 800 ton, longtime running is under the mal-condition of low-speed heave-load, the running gear contact surface of pivot at the bottom of gate is difficult to form good lubricating oil film, along with the increase opening and closing number of times, just there will be abrasion condition in various degree, gate will certainly be caused to run jam, cause vibration and the abnormal sound of a body.Traditional maintenance mode many employings periodic inspection and afterwards overhauling, these two kinds of methods all need to suspend to miter gate's Disintegration overhaul, not only time-consuming but also require great effort.Modern vibration test technology is the vibration signal utilizing high accuracy, highly sensitive sensor collection machinery equipment, by means of the Digital Signal Analysis and Processing technology of advanced person, realizes monitoring running state, fault diagnosis and trend prediction.Vibration test technology has been widely used in mechanical equipment fault detection, for Bottom Hinge for Miter lock Gate fault detect provides important reference.
The bearing shell of Bottom Hinge for Miter lock Gate and mushroom head are running contact parts, and the fault of appearance comprises unlubricated friction, grinds inclined, burning into sand, crackle etc.The vibration detection analysis of Bottom Hinge for Miter lock Gate rarely has report at home, and mainly due to miter gate's Vibration Condition more complicated under the coupling of stormy waves stream, useful fault message is easy to be flooded by strong background noise; And the fault state of end pivot has very large randomness, end pivot is under water in addition, makes to implement miter gate's prototype observation test and there is many difficulties.
In order to study the impact of Bottom Hinge for Miter lock Gate situation opposite house body vibration signal, carrying out end pivot damage model test research is highly effective approach, but must solve how to design, analogue formation and the result by model experiment convert the first-class problem of entity.For this reason, according to the actual motion state of Miter Lock Gates, utilize the theory of similarity, the basis of miter gate's prototype structure is intended develop pivot crash simulation laboratory installation at the bottom of a set of water conservancy project miter gate, for simulating the door body vibration test that end pivot destroys.
Summary of the invention
Technical problem to be solved by this invention is to provide pivot crash simulation laboratory installation at the bottom of a kind of water conservancy project miter gate, this device can simulate the service condition of miter gate's low-speed heave-load, end pivot parts gram are arranged to various faults type, for pivot crash simulation test in the end provides test platform.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: pivot crash simulation laboratory installation at the bottom of a kind of water conservancy project miter gate, comprise gate flap, the support for supporting gate flap is provided with in the side of gate flap, the upper end of gate flap side is provided with top pivot, top pivot is connected with support by bracing or strutting arrangement, and the lower end of the corresponding side of gate flap and the end are pivoted and connect;
Line between top pivot and end pivot forms the axis of rotation of gate flap, and gate flap is also connected with the drive unit driving gate flap to rotate by driving mechanism.
In described end pivot, mushroom head and end pivot overlap formation and are slidably matched, and are provided with removable bearing shell in end pivot cover, and pivot cover in the end is fixedly connected with gate flap base plate, and mushroom head is fixedly connected with pedestal.
Described end pivot puts the oil nozzle being provided with and being communicated with the fitting face between mushroom head and bearing shell, and oil nozzle is connected with oil pump.
Radial oil groove is provided with, described mushroom head fitting face built-up welding stainless steel in described bearing shell.
Be provided with between end pivot cover with the bonding surface of bearing shell for limit bearing shell and end pivot overlap between screw or bearing pin in relative rotation.
In described bracing or strutting arrangement, the first pull bar that triangularity is arranged is connected with gate flap by top pivot with second pull bar one end, the other end of the first pull bar and the second pull bar is hinged with bracket base respectively, two bracket bases are fixedly connected with support by connecting lateral plate, and the first pull bar and the second pull bar are provided with the adjusting screw(rod) of adjustable length.
In described driving mechanism, the top of gate flap is provided with driving bearing pin, and drive link one end and driving pinned connection, the other end of drive link is hinged with one end of driving fork, drives the fork other end to be connected with the drive unit driving fork to rotate.
In described drive unit, variable-frequency motor is connected with reducer by shaft coupling, and reducer is fixedly connected with driving fork.
Men Genei on described gate flap is provided with movable balance weight block.
Described gate flap is also provided with into the back rod that "eight" shape is arranged, back rod is provided with the adjusting screw(rod) of adjustable length.
Described gate flap is also provided with the sensor for detecting vibration.
Pivot crash simulation laboratory installation at the bottom of water conservancy project miter gate provided by the invention, by adopting above-mentioned structure, has following advantage:
1, experimental rig and miter gate prototype meet the principle of similitude, comprise geometric similarity, kinematic similitude and mechanical similitude, can from the vibration characteristics of quantitative forecast prototype model by simulated test.
2, regulated the rotating speed of test gate by variable-frequency motor, be convenient to research different rotating speeds Xiamen body vibration characteristics.
3, changing the deadweight of door body by adding balancing weight at the Men Genei of gate flap, being convenient to research door body weight to the impact of its vibration characteristics.
4, by the pulling force of the back rod of gate flap in adjustment model, research door body rigidity is convenient on the impact of its vibration signal.
5, the fault type by artificially arranging end pivot and degree is convenient to, such as: monitoring bearing shell and mushroom head simulated failure have dry grinding, grind inclined, burning into sand, crackle etc.Simulation pivot failure condition Xiamen, end running body situation, acquisition test door body each point vibration signal, the vibration characteristics of research different faults situation Xiamen body.
6, when conditions permit, miter gate can be simulated in hydrostatic, open and close operation condition, study the impact of different depth of the water submerging opposite house body vibration characteristics.
7, experimental facilities is convenient to installing/dismounting, can carry out repeatedly simulated test.
Based on These characteristics, the present invention can close to the operation condition of real simulation Miter Lock Gates (as door weight, rotating speed, back of the body pulling force, depth of the water submerging, fault category etc.) at different conditions, by gathering door body each point vibration signal, the impact of research various factors opposite house body vibration characteristics, and then to layout for the vibration detection of true gate and signal analysis and processing provides certain guidance.Therefore, the present invention has important effect to the miter gate's repair based on condition of component studied based on vibration signal.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1 is front view of the present invention.
Fig. 2 is the partial enlarged view at A place in Fig. 1.
Fig. 3 is the part of schematic top plan view of the present invention, not shown motor.
Fig. 4 is the structural representation of bracing or strutting arrangement in the present invention.
In figure: pedestal 1, end pivot 2, gate flap 3, top pivot 4, drive link 5, support 6, reducer 7, shaft coupling 8, variable-frequency motor 9, balancing weight 10, end pivot base plate 11, mushroom head 12, bearing shell 13, end pivot cover 14, oil nozzle 15, gate flap base plate 16, back rod 17, adjusting screw(rod) 18, the first pull bar 19, second pull bar 20, bearing 21, drive bearing pin 22, gate flap gusset 23, bracket base 24, drive fork 25, connecting lateral plate 26, gripper shoe 27, motor base 28, support base plate 29, top pivot sleeve 30, oil pump 31.
Detailed description of the invention
As in Fig. 1, at the bottom of a kind of water conservancy project miter gate, pivot crash simulation laboratory installation, comprises gate flap 3, being provided with the support 6 for supporting gate flap 3, being fixedly connected with bottom support 6 by fot screw with pedestal 1 in the side of gate flap 3.
The upper end of gate flap 3 side is provided with top pivot 4, and top pivot 4 is connected with support 6 by bracing or strutting arrangement, and the lower end of the corresponding side of gate flap 3 is connected with end pivot 2;
Line between top pivot 4 and end pivot 2 forms the axis of rotation of gate flap 3, and gate flap 3 is also connected with the drive unit driving gate flap 3 to rotate by driving mechanism.
As in Fig. 2, in described end pivot 2, mushroom head 12 and end pivot overlap 14 and are formed and be slidably matched, removable bearing shell 13 is provided with in end pivot cover 14, end pivot cover 14 is fixedly connected with gate flap base plate 16, mushroom head 12 is fixedly connected with pedestal 1, and wherein mushroom head 12 is connected with end pivot base plate 11 by alignment pin, and end pivot base plate 11 is connected with pedestal 1 by bolt.By changing bearing shell 13, bearing shell 13 and mushroom head 12 simulated failure of described end pivot 2 have dry grinding, grind inclined, burning into sand, crackle etc.
Described end pivot cover 14 is provided with the oil nozzle 15 be communicated with the fitting face between mushroom head 12 and bearing shell 13, and oil nozzle 15 is connected with oil pump 31.Described oil pump 31 is manual dry oil pump.
Radial oil groove is provided with, described mushroom head 12 fitting face built-up welding stainless steel in described bearing shell 13, not shown.
As in Fig. 2, be provided with between end pivot cover 14 and the bonding surface of bearing shell 13 for limit bearing shell 13 and end pivot overlap 14 between screw or bearing pin in relative rotation.
As in Fig. 3, Fig. 4, in described bracing or strutting arrangement, the first pull bar 19 that triangularity is arranged is connected with gate flap 3 by top pivot 4 with second pull bar 20 one end, push up pivot 4 and the first pull bar 19 and the second pull bar 20 for being articulated and connected, gate flap 3 top is provided with gate flap gusset 23, be provided with top pivot sleeve 30 outside the pivot 4 of top, gate flap gusset 23 forms interference fit with top pivot sleeve 30, provides extra strengthening to support to give top pivot 4.
As Fig. 3, in Fig. 4, the other end of the first pull bar 19 and the second pull bar 20 is hinged with bracket base 24 respectively, two bracket bases 24 are fixedly connected with support 6 by connecting lateral plate 26, first pull bar 19 and the second pull bar 20 are provided with the adjusting screw(rod) 18 of adjustable length, adjusting screw(rod) 18 is the threaded double threaded screw of two ends tool, the thread rotary orientation at two ends is contrary, double threaded screw and the first pull bar 19 and the second pull bar 20 form threaded engagement, by rotating the adjusting screw(rod) 18 i.e. length of adjustable first pull bar 19 and the second pull bar 20, thus ensure top, the verticality of the central axis of end pivot.
As in Fig. 1, in described driving mechanism, the top of gate flap 3 is provided with and drives bearing pin 22, concrete structure in this example is, the rolling bearing 21 that gate flap 3 is provided with, the inner ring of rolling bearing 21 forms interference fit with driving bearing pin 22, and drive link 5 one end is connected with driving bearing pin 22, the other end of drive link 5 is hinged with one end of driving fork 25, drives fork 25 other end to be connected with the drive unit driving fork 25 to rotate.
In described drive unit, variable-frequency motor 9 is connected with reducer 7 by shaft coupling 8, and reducer 7 is fixedly connected with driving fork 25, adopts flat key to connect in this example.
As in Fig. 1, the Men Genei on described gate flap 3 is provided with movable balance weight block 10, thus is convenient to change the deadweight of door body, to study the impact of a body weight on its vibration characteristics.
As in Fig. 1, described gate flap 3 is also provided with into the back rod 17 that "eight" shape is arranged, back rod 17 is provided with the adjusting screw(rod) 18 of adjustable length, and the back rod 17 of setting can adjust the internal stress of gate flap 3, is convenient to study door body rigidity or the impact of distortion on its vibration signal.
Described gate flap 3 is also provided with the sensor for detecting vibration, not shown, to study the miter gate's repair based on condition of component based on vibration signal.
Claims (4)
1. pivot crash simulation laboratory installation at the bottom of a water conservancy project miter gate, comprise gate flap (3), it is characterized in that: be provided with the support (6) for supporting gate flap (3) in the side of gate flap (3), the upper end of gate flap (3) side is provided with top pivot (4), top pivot (4) is connected with support (6) by bracing or strutting arrangement, and the lower end of gate flap (3) corresponding side is connected with end pivot (2);
In described bracing or strutting arrangement, the first pull bar (19) that triangularity is arranged is connected with gate flap (3) by top pivot (4) with the second pull bar (20) one end, the other end of the first pull bar (19) and the second pull bar (20) is hinged with bracket base (24) respectively, two bracket bases (24) are fixedly connected with support (6) by connecting lateral plate (26), and the first pull bar (19) and the second pull bar (20) are provided with the adjusting screw(rod) (18) of adjustable length; Line between top pivot (4) and end pivot (2) forms the axis of rotation of gate flap (3), and gate flap (3) is also connected with the drive unit driving gate flap (3) to rotate by driving mechanism;
In described driving mechanism, the top of gate flap (3) is provided with and drives bearing pin (22), drive link (5) one end is connected with driving bearing pin (22), the other end of drive link (5) is hinged with one end of driving fork (25), drives fork (25) other end to be connected with the drive unit driving fork (25) to rotate;
In described drive unit, variable-frequency motor (9) is connected with reducer (7) by shaft coupling (8), and reducer (7) is fixedly connected with driving fork (25);
Men Genei on described gate flap (3) is provided with movable balance weight block (10);
Described gate flap (3) is also provided with into the back rod (17) that "eight" shape is arranged, back rod (17) is provided with the adjusting screw(rod) (18) of adjustable length;
Described gate flap (3) is also provided with the sensor for detecting vibration.
2. pivot crash simulation laboratory installation at the bottom of a kind of water conservancy project miter gate according to claim 1, it is characterized in that: in described end pivot (2), mushroom head (12) and end pivot cover (14), formed and be slidably matched, removable bearing shell (13) is provided with at the end pivot cover (14), end pivot cover (14), is fixedly connected with gate flap base plate (16), and mushroom head (12) is fixedly connected with pedestal (1);
Described end pivot cover (14), is provided with the oil nozzle (15) be communicated with the fitting face between mushroom head (12) and bearing shell (13), and oil nozzle (15) is connected with oil pump (31).
3. pivot crash simulation laboratory installation at the bottom of a kind of water conservancy project miter gate according to claim 2, is characterized in that: be provided with radial oil groove in described bearing shell (13), described mushroom head (12) fitting face built-up welding stainless steel.
4. pivot crash simulation laboratory installation at the bottom of a kind of water conservancy project miter gate according to Claims 2 or 3, is characterized in that: be provided with between the bonding surface of Di Shutao (14) and bearing shell (13) for limiting at bearing shell (13) and end pivot cover (14) screw or bearing pin in relative rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210465289.5A CN102966070B (en) | 2012-11-19 | 2012-11-19 | Hydraulic miter gate bottom pivot destruction and simulation laboratory device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210465289.5A CN102966070B (en) | 2012-11-19 | 2012-11-19 | Hydraulic miter gate bottom pivot destruction and simulation laboratory device |
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| Publication Number | Publication Date |
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| CN102966070A CN102966070A (en) | 2013-03-13 |
| CN102966070B true CN102966070B (en) | 2015-02-25 |
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| CN201210465289.5A Expired - Fee Related CN102966070B (en) | 2012-11-19 | 2012-11-19 | Hydraulic miter gate bottom pivot destruction and simulation laboratory device |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104264649A (en) * | 2014-09-28 | 2015-01-07 | 湖南五凌电力工程有限公司 | Guide device for jacking miter gate of lock |
| CN104452677A (en) * | 2014-11-14 | 2015-03-25 | 长江三峡通航管理局 | Miter gate back drag rod prestress adjusting method and device |
| CN108278230B (en) * | 2017-09-30 | 2019-07-02 | 三峡大学 | A kind of hydraulic system and test method of miter gate simulator stand |
| CN108279117B (en) * | 2017-09-30 | 2019-07-26 | 三峡大学 | The secondary Wearing Simulated Test platform of miter gate bottom pivot friction |
| CN111859732B (en) * | 2020-06-18 | 2022-09-30 | 重庆交通大学 | Ship lock gate and automatic monitoring system and monitoring method for damage degree of supporting operation member thereof |
| CN111719534A (en) * | 2020-06-19 | 2020-09-29 | 长江三峡通航管理局 | Large herringbone gate low-position top door bottom pivot overhauling system and using method |
| CN117071521B (en) * | 2023-06-13 | 2024-04-19 | 重庆交通大学 | Intelligent loading test system and method for ship lock gate structure |
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