CN111442918B - Pressure-resistant sealing performance testing device for gate of storage structure of shield tool-changing robot - Google Patents
Pressure-resistant sealing performance testing device for gate of storage structure of shield tool-changing robot Download PDFInfo
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- CN111442918B CN111442918B CN202010298615.2A CN202010298615A CN111442918B CN 111442918 B CN111442918 B CN 111442918B CN 202010298615 A CN202010298615 A CN 202010298615A CN 111442918 B CN111442918 B CN 111442918B
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- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
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Abstract
The invention provides a device for testing the pressure-resistant sealing performance of a gate of a storage structure of a shield cutter-changing robot, which comprises: a base; the first saddle support is arranged on the base and fixedly connected with the base through a bolt; the gate support is arranged on the base and arranged in parallel with the first saddle support, and the gate support is fixedly connected with the base through a bolt; the second saddle type support is arranged on the base and arranged in parallel with the gate support, and the second saddle type support is fixedly connected with the base through a bolt. The invention can realize the test of the sealing performance of the gate sealing pieces made of different materials and structures and the gate in different pressure environments, and provides scientific reference basis for the design of the reliability of the sealing piece materials and the structure of the gate at different positions of the storage cabin gate of the shield tool-changing robot.
Description
Technical Field
The invention relates to the technical field of tunnel engineering equipment, in particular to a device for testing the pressure-resistant sealing performance of a storage structure gate of a shield cutter-changing robot.
Background
In recent years, with the urgent need of underground space engineering construction and the improvement of engineering technology level, slurry shields are widely applied to tunnel construction. Due to the fact that the shield tunnels in a long distance, the abrasion of a cutter is serious inevitably, the consumption is high, manual cutter changing is long in time consumption, and the risk is high, a cutter changing robot needs to be designed to realize automatic cutter changing, and the cutter changing efficiency and the safety are effectively improved. The storage cabin is used for storing the tool changing robot and managing cutters, when tool changing operation is to be carried out, a gate of the storage cabin needs to be opened, the tool changing robot stretches out of the storage cabin to enter the cutter head to carry out tool changing operation, when the tool changing operation is completed, the storage cabin needs to be contracted by the tool changing robot to store the cabin, the gate of the storage cabin is closed, and the shield tunneling operation is normally carried out. The gate is used as a device for pressure isolation between the storage cabin and the external normal pressure space, and the problems of unbalanced tunnel face pressure, ground settlement, incapability of smoothly returning the robot to the storage cabin and the like due to sealing failure in a high-pressure high-humidity environment are solved, so that the design of a gate sealing mechanism and a sealing system of the shield cutter-changing robot storage cabin gate sealing performance test bench can effectively improve the adaptability of the cutter-changing robot in the high-pressure high-humidity shield machine, and the reliable sealing of the gate is realized.
Through the retrieval of relevant documents and data at home and abroad, many colleges and universities and research institutions at home develop experimental research or theoretical research on the sealing performance of the shield machine at present. The invention patent CN108331511A of the three-office group of China, named as: a sealing device and a shield machine robot cabin door, which provide a reliable sealing device and a shield machine robot cabin door; the invention patent CN108361383A of Liaoning Sansanwu Co Ltd, its name is: a novel shield machine main drive sealing system provides a device capable of automatically adjusting the pressure of the shield machine sealing system; the invention patent CN109253847A of Jiangsu Kaigong tunnel machinery Co., Ltd is named as: a shield machine main drive sealing performance detection test tool and a detection method are used for detecting the sealing performance of main drive inner and outer lip seals. The invention patent CN105781564A of medium iron engineering equipment group, Inc., is named as: the telescopic main driving sealing device of the large-diameter shield tunneling machine realizes the sealing effect on the soil in the soil bin or the slurry in the telescopic process of the main driving. In terms of the pressure-resistant seal test: the invention patent CN109625216A of Meizuo deep sea energy science and technology research Limited company is named as: an underwater pressure-resistant sealed cabin for monitoring production of deep-sea oil and gas fields and a monitoring method thereof design the pressure-resistant sealed cabin and an oil and gas leakage monitoring method. Chongqing university invention patent CN109916570A, entitled: a sealing performance testing machine mainly designs a sealing performance testing device for a hydraulic system.
The research on the sealing performance of main bearings, man-made cabin doors and the like in the shield machine has been carried out by the domestic research institutions, and the research on the sealing performance test has been carried out in the fields of other deep sea oil fields, hydraulic systems and the like, but no device for testing the sealing performance of storage cabin doors of the shield machine tool changing robot exists at present. Therefore, the device for testing the sealing performance of the storage cabin gate of the shield cutter-changing robot is developed aiming at the research on the high-pressure sealing and frequent opening and closing wear-resisting characteristics of the gate under the high-pressure and high-humidity environment of the shield, the device simulates the gate of the storage cabin of the shield cutter-changing robot and the working condition outside the cabin through two high-pressure water cabins and a gate opening and closing system, the sealing performance of the gate of the storage cabin is judged by measuring the pressure value in the two water cabins through a pressure sensor, and the experimental research on the sealing performance of the gate under the working conditions of different materials and structures and different relative pressure.
Disclosure of Invention
The invention provides a device for testing the pressure-resistant sealing performance of a gate of a storage structure of a shield cutter-changing robot, and aims to solve the problem that the traditional testing device cannot realize a sealing performance test of sealing elements of different materials and different structures in different pressure environments.
In order to achieve the above object, an embodiment of the present invention provides a device for testing pressure sealing performance of a gate of a storage structure of a shield cutter-changing robot, including:
a base;
the first saddle support is arranged on the base and fixedly connected with the base through a bolt;
the gate support is arranged on the base and arranged in parallel with the first saddle support, and the gate support is fixedly connected with the base through a bolt;
the second saddle support is arranged on the base and arranged in parallel with the gate support, and the second saddle support is fixedly connected with the base through a bolt;
the high-pressure water cabin is arranged on the first saddle-type support and is welded with the first saddle-type support;
a first gate connecting cylinder, a first end of which is connected with a first end of the high-pressure water tank through a flange bolt;
the gate device is arranged on the gate support and is fixedly connected with the gate support through a bolt, and a first end of the gate device is connected with a second end of the first gate connecting cylinder;
a second gate connector having a first end connected to a second end of the gate device;
the normal pressure cabin is arranged on the second saddle type support and welded with the second saddle type support, and the first end of the normal pressure cabin is connected with the second end of the second gate connecting cylinder through a flange bolt.
Wherein the hyperbaric chamber comprises:
the water pressure gauge is arranged at the second end of the high-pressure water cabin and connected with the high-pressure water cabin, and the water pressure gauge is used for reading the water pressure value in the high-pressure water cabin in real time;
the first drainage valve is arranged at the bottom of the high-pressure water tank and is fixedly connected with the high-pressure water tank;
the water inlet valve is arranged at the top of the high-pressure water cabin and is fixedly connected with the high-pressure water cabin;
and the exhaust valve is arranged at the top of the high-pressure water cabin and is fixedly connected with the high-pressure water cabin.
Wherein, the gate device includes:
the first gate oil cylinder cover plate is arranged on the gate support, two sides of the first gate oil cylinder cover plate are fixedly connected with the gate support through bolts, and a first telescopic oil cylinder body is arranged on the first gate oil cylinder cover plate;
the first telescopic oil cylinder piston rod penetrates through the first gate oil cylinder cover plate;
the second gate oil cylinder cover plate is arranged opposite to the first gate oil cylinder cover plate, and a second telescopic oil cylinder body is arranged on the second gate oil cylinder cover plate;
the second telescopic oil cylinder piston rod penetrates through the second gate oil cylinder cover plate;
a first end of the first gate plate connecting plate is connected with a first end of the first telescopic cylinder piston rod, and a second end of the first gate plate connecting plate is connected with a first end of the second telescopic cylinder piston rod;
the second gate plate connecting plate is opposite to the first gate plate connecting plate, the first end of the second gate plate connecting plate is connected with the second end of the first telescopic cylinder piston rod, and the second end of the second gate plate connecting plate is connected with the second end of the second telescopic cylinder piston rod;
the gate, the gate is provided with first flashboard and second flashboard, first flashboard is installed in first square mounting bracket, the first end of first flashboard pass through the bolt with first flashboard connecting plate fixed connection, the second flashboard is installed in the square mounting bracket of second, the first end of second flashboard pass through the bolt with second flashboard connecting plate fixed connection.
Wherein the atmospheric pressure cabin comprises:
a glass plate mounted at a second end of the atmospheric pressure chamber for observing in real time the presence of a leak in the gate apparatus;
the second drain valve sets up the bottom in ordinary pressure cabin, the second drain valve with ordinary pressure cabin fixed connection, the second drain valve is used for discharging the water in the ordinary pressure cabin.
Wherein, the gate device further includes:
two first gate sealing parts are arranged and are respectively installed in a first groove and a second groove, the first groove is arranged at the joint of the first end of the gate device and the second end of the first gate connecting cylinder, and the second groove is arranged at the joint of the first end of the second gate connecting cylinder and the second end of the gate device;
two second gate sealing pieces which are respectively installed in a third groove and a fourth groove, wherein the third groove is formed in the second end of the first gate plate, the fourth groove is formed in the second end of the second gate plate, and the second gate sealing pieces are respectively detachably connected with the second end of the first gate plate and the second end of the second gate plate through screws;
the first gate sealing piece is arranged at the upper end of the first gate plate, and the second gate sealing piece is arranged at the lower end of the second gate plate;
and the fourth gate sealing pieces are arranged in two numbers, and are respectively installed on the side walls of the first gate plate and the second gate plate in a surrounding mode.
The gate device is further provided with a hydraulic system, the hydraulic system is used for driving the first telescopic oil cylinder body, the second telescopic oil cylinder body, the first telescopic oil cylinder piston rod and the second telescopic oil cylinder piston rod drive the first gate plate and the second gate plate to slide in the horizontal direction, and the gate device is automatically opened and closed.
And the gate device is also provided with a counter, and the counter is used for recording the opening and closing times of the gate and the sealing time of the gate.
The scheme of the invention has the following beneficial effects:
the device for testing the pressure-resistant sealing performance of the gate of the storage structure of the shield tool-changing robot is simple, firm and reusable, can realize the sealing performance test of gate sealing parts of different materials and structures and the sealing performance test of the gate sealing parts under different pressure environments, is intuitive and accurate in the whole experiment, can judge whether the gate sealing parts leak or not through pressure change values, and provides a basis for researching sealing mechanisms of different structural forms under the high-pressure environment and a reliability design method for adapting the gate sealing parts to the pressure environment.
Drawings
FIG. 1 is a schematic structural diagram of the present invention (1);
FIG. 2 is a schematic structural diagram of the present invention (2);
FIG. 3 is a schematic view of the structure of the gate device of the present invention.
[ description of reference ]
1-a base; 2-a first saddle support; 3-a gate support; 4-a second saddle support; 5-a high pressure water chamber; 6-a first gate connecting cylinder; 7-a gate device; 8-a second gate connecting cylinder; 9-atmospheric pressure cabin; 10-water pressure gauge; 11-a first drain valve; 12-a water inlet valve; 13-an exhaust valve; 14-a first gate cylinder cover plate; 15-a first telescopic oil cylinder body; 16-a first telescopic cylinder piston rod; 17-a second gate cylinder cover plate; 18-a second telescopic oil cylinder body; 19-a second telescopic cylinder piston rod; 20-a first ram connecting plate; 21-a second gate plate connection plate; 22-a first shutter; 23-a first square mount; 24-a second shutter; 25-a second square mounting frame; 26-a glass plate; 27-a second drain valve; 28-a first gate seal; 29-a second gate seal; 30-a third gate seal; 31-fourth gate seal.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.
The invention provides a device for testing the pressure-resistant sealing performance of a gate of a storage structure of a shield cutter-changing robot, aiming at the problem that the existing testing device can not realize the sealing performance test of gate sealing parts made of different materials and in different structures under different pressure environments.
As shown in fig. 1 to 3, an embodiment of the present invention provides a device for testing pressure sealing performance of a storage structure gate of a shield tool-changing robot, including: a base 1; the first saddle support 2 is arranged on the base 1, and the first saddle support 2 is fixedly connected with the base 1 through bolts; the gate support 3 is arranged on the base 1, the gate support 3 is arranged in parallel with the first saddle support 2, and the gate support 3 is fixedly connected with the base 1 through bolts; the second saddle support 4 is arranged on the base 1, the second saddle support 4 is arranged in parallel with the gate support 3, and the second saddle support 4 is fixedly connected with the base 1 through bolts; the high-pressure water tank 5 is arranged on the first saddle-type support 2, and the high-pressure water tank 5 is welded with the first saddle-type support 2; a first gate connecting cylinder 6, wherein a first end of the first gate connecting cylinder 6 is connected with a first end of the high-pressure water tank 5 through a flange bolt; the gate device 7 is arranged on the gate support 3, the gate device 7 is fixedly connected with the gate support 3 through a bolt, and a first end of the gate device 7 is connected with a second end of the first gate connecting cylinder 6; a second gate connecting cylinder 8, a first end of the second gate connecting cylinder 8 is connected with a second end of the gate device 7; a normal pressure cabin 9, wherein the normal pressure cabin 9 is arranged on the second saddle-shaped support 4, the normal pressure cabin 9 is welded with the second saddle-shaped support 4, and a first end of the normal pressure cabin 9 is connected with a second end of the second gate connecting cylinder 8 through a flange bolt.
According to the device for testing the pressure sealing performance of the gate of the storage structure of the shield cutter-changing robot, the base 1, the first saddle-type support 2, the gate support 3 and the second saddle-type support 4 play a supporting role, the first end of the high-pressure water tank 5 is connected with the first end of the first gate connecting cylinder 6 through a flange bolt, the first end of the normal pressure tank 9 is connected with the second end of the second gate connecting cylinder 8 through a flange bolt, a closed space is formed, and the pressure sealing working condition of the gate when the cutter-changing robot contracts to the storage cabin shield for normal tunneling is simulated.
Wherein the hyperbaric chamber 5 comprises: the water pressure gauge 10 is arranged at the second end of the high-pressure water cabin 5, the water pressure gauge 10 is connected with the high-pressure water cabin 5, and the water pressure gauge 10 is used for reading the water pressure value in the high-pressure water cabin 5 in real time; the first drainage valve 11 is arranged at the bottom of the high-pressure water tank 5, and the first drainage valve 11 is fixedly connected with the high-pressure water tank 5; the water inlet valve 12 is arranged at the top of the high-pressure water tank 5, and the water inlet valve 12 is fixedly connected with the high-pressure water tank 5; and the exhaust valve 13, the exhaust valve 13 is arranged at the top of the high-pressure water tank 5, and the exhaust valve 13 is fixedly connected with the high-pressure water tank 5.
According to the device for testing the pressure-resistant sealing performance of the gate of the storage structure of the shield cutter-changing robot, the top of the high-pressure water tank 5 is communicated with the water inlet valve 12, the bottom of the high-pressure water tank 5 is communicated with the first water discharge valve 11, the top of the high-pressure water tank 5 is also connected with the air discharge valve 13, the process that the high-pressure water tank 5 is filled with water and pressurized is achieved, the second end of the high-pressure water tank 5 is connected with the water pressure gauge 10, the water pressure gauge 10 can read the water pressure value in the high-pressure water tank 5 in real time, and the water pressure value can be added to different pressure values to simulate a test of the sealing performance of the gate of the shield high-.
Wherein the shutter device 7 includes: the gate support 3 is provided with a first gate cylinder cover plate 14, the first gate cylinder cover plate 14 is arranged on the gate support 3, two sides of the first gate cylinder cover plate 14 are fixedly connected with the gate support 3 through bolts, and a first telescopic cylinder body 15 is arranged on the first gate cylinder cover plate 14; the first telescopic cylinder piston rod 16 is arranged in the first gate cylinder cover plate 14 in a penetrating manner; a second gate cylinder cover plate 17, wherein the second gate cylinder cover plate 17 is arranged opposite to the first gate cylinder cover plate 14, and a second telescopic cylinder body 18 is arranged on the second gate cylinder cover plate 17; a second telescopic cylinder piston rod 19, wherein the second telescopic cylinder piston rod 19 is arranged in the second gate cylinder cover plate 17 in a penetrating manner; a first gate connecting plate 20, wherein a first end of the first gate connecting plate 20 is connected with a first end of the first telescopic cylinder piston rod 16, and a second end of the first gate connecting plate 20 is connected with a first end of the second telescopic cylinder piston rod 19; a second gate plate connecting plate 21, wherein the second gate plate connecting plate 21 is arranged opposite to the first gate plate connecting plate 20, a first end of the second gate plate connecting plate 21 is connected with a second end of the first telescopic cylinder piston rod 16, and a second end of the second gate plate connecting plate 21 is connected with a second end of the second telescopic cylinder piston rod 19; the gate is provided with a first gate plate 22 and a second gate plate 24, the first gate plate 22 is installed in a first square installation frame 23, the first end of the first gate plate 22 is fixedly connected with a first gate plate connection plate 20 through bolts, the second gate plate 24 is installed in a second square installation frame 25, and the first end of the second gate plate 24 is fixedly connected with a second gate plate connection plate 21 through bolts.
The device for testing the pressure sealing performance of the storage structure gate of the shield tool-changing robot in the above embodiment of the invention comprises the first gate plate 22 and the second gate plate 24 which are arranged in a split manner, wherein the first end of the first gate plate 22 is connected with the first gate plate connecting plate 20 through a bolt, the first end of the second gate plate 24 is connected with the second gate plate connecting plate 21 through a bolt, two ends of the first gate plate connecting plate 20 are respectively connected with the first end of the first telescopic cylinder piston rod 16 and the first end of the second telescopic cylinder piston rod 19, two ends of the second gate plate connecting plate 21 are respectively connected with the second end of the first telescopic cylinder piston rod 16 and the second telescopic cylinder piston rod 19, the first telescopic cylinder body 15 is located on the first gate cylinder cover plate 14, the first gate cylinder cover plate 14 protects the first telescopic cylinder body 15, the flexible hydro-cylinder body of second 18 is located on the flexible hydro-cylinder cover board 17 of second gate, the flexible hydro-cylinder body of second 18 is lapped to the second gate hydro-cylinder cover board 17 protection, through first flexible hydro-cylinder body 15 first flexible hydro-cylinder piston rod 16 the flexible hydro-cylinder body of second 18 with the relative slip regulation of the flexible hydro-cylinder piston rod 19 of second first flashboard 22 with opening and shutting of second flashboard 24.
Wherein the atmospheric pressure cabin 9 includes: a glass plate 26, said glass plate 26 being mounted at a second end of said atmospheric pressure cabin 9, said glass plate 26 being used for observing in real time whether said gate means 7 is leaking; a second water discharge valve 27, wherein the second water discharge valve 27 is arranged at the bottom of the normal pressure cabin 9, the second water discharge valve 27 is fixedly connected with the normal pressure cabin 9, and the second water discharge valve 27 is used for discharging water in the normal pressure cabin 9.
According to the device for testing the pressure sealing performance of the gate of the storage structure of the shield tool-changing robot, whether the gate device 7 leaks or not can be observed in real time through the transparent glass plate 26, the failed gate sealing piece can be accurately judged according to the leaking position, the bottom of the normal pressure cabin 9 is connected with the second drain valve 27, and when the gate device 7 leaks, the second drain valve 27 can drain water leaking into the normal pressure cabin 9.
Wherein, the gate device 7 further includes: a first gate seal 28, two of which 28 are installed in a first groove and a second groove, respectively, the first groove being provided at a junction of a first end of the gate device 7 and a second end of the first gate link cylinder 6, the second groove being provided at a junction of a first end of the second gate link cylinder 8 and a second end of the gate device 7; a second gate seal 29, two of the second gate seals 29 being installed in a third groove and a fourth groove, respectively, the third groove being provided in the second end of the first gate plate 22, the fourth groove being provided in the second end of the second gate plate 24, the second gate seal 29 being detachably connected to the second end of the first gate plate 22 and the second end of the second gate plate 24 by screws, respectively; a third gate sealing member 30, wherein the third gate sealing member 30 is provided in a U shape, two third gate sealing members 30 are provided, and the third gate sealing members 30 are respectively installed at the upper and lower ends of the first gate plate 22 and the second gate plate 24; a fourth gate seal 31, two of the fourth gate seals 31 being provided, the fourth gate seals 31 being respectively installed around sidewalls of the first and second gate plates 22 and 24.
The device for testing the pressure resistance and sealing performance of the storage structure gate of the shield cutter-changing robot in the above embodiment of the invention comprises a gate sealing system and a gate sealing system, wherein the gate sealing system comprises a first gate sealing member 28, a second gate sealing member 29, a third gate sealing member 30 and a fourth gate sealing member 31, the first gate sealing member 28 is respectively installed in the first groove and the second groove, the second gate sealing member 29 is respectively installed in the second ends of the first gate plate 22 and the second gate plate 24, when the first gate plate 22 and the second gate plate 24 are closed, sealing is realized by the second gate sealing member 29, the third gate sealing member 30 and the fourth gate sealing member 31 are respectively installed on the peripheries of the first gate plate 22 and the second gate plate 24 and are used for sealing the peripheries of the first gate plate 22 and the second gate plate 24, the sealing between the gate device 7 and the high-pressure water cabin 5 and the normal pressure cabin 9 is realized, the material and the structural form of the gate sealing piece at different positions can be replaced, and the sealing performance test experiment of the gate sealing piece with different material properties and structural characteristics is realized.
The gate device 7 is further provided with a hydraulic system, the hydraulic system is used for driving the first telescopic cylinder body 15, the second telescopic cylinder body 18, the first telescopic cylinder piston rod 16 and the second telescopic cylinder piston rod 19 to drive the first gate plate 22 and the second gate plate 24 to slide in the horizontal direction, and the automatic opening and closing action of the gate device 7 is realized.
According to the device for testing the pressure-resistant sealing performance of the gate of the storage structure of the shield cutter-changing robot, the hydraulic system provides power for the gate device 7, the water adding and pressurizing processes of the high-pressure water tank 5 are realized through the electric control system, and the test experiment process of the device for testing the pressure-resistant sealing performance of the gate of the storage structure of the shield cutter-changing robot is monitored and recorded in real time through the water pressure gauge 10.
And a counter is further installed on the gate device 7 and used for recording the opening and closing times of the gate and the sealing time of the gate.
According to the device for testing the pressure-resistant sealing performance of the gate of the storage structure of the shield cutter-changing robot, the counter is mounted on the gate device 7, and is used for recording the opening and closing times of the gate and recording the sealing time of the gate so as to test the fatigue life of a sealing part of the gate.
The device for testing the pressure-resistant sealing performance of the storage structure gate of the shield tool-changing robot in the embodiment of the invention has the following specific working processes: firstly, the first gate plate 22 and the second gate plate 24 are in a closed state through the relative movement of the first telescopic cylinder body 15, the second telescopic cylinder body 18, the first telescopic cylinder piston rod 16 and the second telescopic cylinder piston rod 19, the first drain valve 11 and the second drain valve 27 are closed, the water inlet valve 12 is opened, water is filled into the high-pressure water tank 5, when the high-pressure water tank 5 is filled with water, the exhaust valve 13 is opened, redundant gas in the high-pressure water tank 5 is exhausted, and the exhaust valve 13 is closed; pressurizing the high-pressure water tank 5, recording the water pressure value of the high-pressure water tank 5 by the water pressure meter 10 in real time, stopping pressurizing when the water pressure is increased to a certain value, starting timing by adopting a timer, observing the pressure value of the high-pressure water tank 5 in real time, indicating that the gate device 7 starts to leak when the pressure value changes, recording the pressure maintaining time, namely the continuous pressure-resistant sealing time of the gate sealing system, observing whether the gate device 7 leaks or not through the glass plate 26, determining the leaking position, judging the failed gate sealing element, and opening the first drain valve 11 and the second drain valve 27 to discharge the water in the high-pressure water tank 5 and the normal pressure cabin 9 after the experiment is finished; the first gate sealing element 28, the second gate sealing element 29, the third gate sealing element 30 and the fourth gate sealing element 31 which can be provided with different materials and different structural forms are subjected to repeated experiments, the duration of pressure-resistant sealing time is compared, the influence rule of the material and the structural form of the gate sealing element on the pressure-resistant sealing performance of the gate is explored, the water pressure value of the high-pressure water tank 5 can be changed, the working conditions of the shield cabin with different pressures are simulated, the sealing performance of the gate under different pressure environments is obtained, and the material and the structural form of the gate sealing element which are suitable for the optimal sealing performance under different working conditions are provided.
The device for testing the pressure-resistant sealing performance of the gate of the storage structure of the shield cutter-changing robot can simulate the sealing state of a gate sealing system when the gate of the storage compartment of the cutter-changing robot is closed, can explore the influence rule of the material, the structural form and the relative pressure difference of a gate sealing member on the sealing performance of the gate, guide the design of the gate sealing system of different shield machines, improve the reliability of the gate sealing system, record the opening and closing times by continuously opening and closing the gate device 7, then test the sealing performance of the gate sealing member, obtain the fatigue life of the gate sealing member by analyzing the opening and closing times and the pressure maintaining time of the gate, provide a long-life gate sealing system scheme and ensure the safety of construction in the shield.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (5)
1. The utility model provides a shield constructs tool changing robot and stores structure gate pressure-resistant sealing performance testing arrangement which characterized in that includes:
a base;
the first saddle support is arranged on the base and fixedly connected with the base through a bolt;
the gate support is arranged on the base and arranged in parallel with the first saddle support, and the gate support is fixedly connected with the base through a bolt;
the second saddle support is arranged on the base and arranged in parallel with the gate support, and the second saddle support is fixedly connected with the base through a bolt;
the high-pressure water cabin is arranged on the first saddle-type support and is welded with the first saddle-type support;
a first gate connecting cylinder, a first end of which is connected with a first end of the high-pressure water tank through a flange bolt;
the gate device is arranged on the gate support and is fixedly connected with the gate support through a bolt, and a first end of the gate device is connected with a second end of the first gate connecting cylinder;
a second gate connector having a first end connected to a second end of the gate device;
a normal pressure cabin arranged on the second saddle support, the normal pressure cabin welded with the second saddle support, a first end of the normal pressure cabin connected with a second end of the second gate connecting cylinder through a flange bolt;
the hyperbaric chamber comprises:
the water pressure gauge is arranged at the second end of the high-pressure water cabin and connected with the high-pressure water cabin, and the water pressure gauge is used for reading the water pressure value in the high-pressure water cabin in real time;
the first drainage valve is arranged at the bottom of the high-pressure water tank and is fixedly connected with the high-pressure water tank;
the water inlet valve is arranged at the top of the high-pressure water cabin and is fixedly connected with the high-pressure water cabin;
the exhaust valve is arranged at the top of the high-pressure water cabin and is fixedly connected with the high-pressure water cabin;
the gate device includes:
the first gate oil cylinder cover plate is arranged on the gate support, two sides of the first gate oil cylinder cover plate are fixedly connected with the gate support through bolts, and a first telescopic oil cylinder body is arranged on the first gate oil cylinder cover plate;
the first telescopic oil cylinder piston rod penetrates through the first gate oil cylinder cover plate;
the second gate oil cylinder cover plate is arranged opposite to the first gate oil cylinder cover plate, and a second telescopic oil cylinder body is arranged on the second gate oil cylinder cover plate;
the second telescopic oil cylinder piston rod penetrates through the second gate oil cylinder cover plate;
a first end of the first gate plate connecting plate is connected with a first end of the first telescopic cylinder piston rod, and a second end of the first gate plate connecting plate is connected with a first end of the second telescopic cylinder piston rod;
the second gate plate connecting plate is opposite to the first gate plate connecting plate, the first end of the second gate plate connecting plate is connected with the second end of the first telescopic cylinder piston rod, and the second end of the second gate plate connecting plate is connected with the second end of the second telescopic cylinder piston rod;
the gate, the gate is provided with first flashboard and second flashboard, first flashboard is installed in first square mounting bracket, the first end of first flashboard pass through the bolt with first flashboard connecting plate fixed connection, the second flashboard is installed in the square mounting bracket of second, the first end of second flashboard pass through the bolt with second flashboard connecting plate fixed connection.
2. The shield cutter-changing robot storage structure gate pressure-resistant sealing performance testing device of claim 1, wherein the normal pressure cabin comprises:
a glass plate mounted at a second end of the atmospheric pressure chamber for observing in real time the presence of a leak in the gate apparatus;
the second drain valve sets up the bottom in ordinary pressure cabin, the second drain valve with ordinary pressure cabin fixed connection, the second drain valve is used for discharging the water in the ordinary pressure cabin.
3. The shield cutter-changing robot storage structure gate pressure-resistant sealing performance testing device of claim 2, wherein the gate device further comprises:
two first gate sealing parts are arranged and are respectively installed in a first groove and a second groove, the first groove is arranged at the joint of the first end of the gate device and the second end of the first gate connecting cylinder, and the second groove is arranged at the joint of the first end of the second gate connecting cylinder and the second end of the gate device;
two second gate sealing pieces which are respectively installed in a third groove and a fourth groove, wherein the third groove is formed in the second end of the first gate plate, the fourth groove is formed in the second end of the second gate plate, and the second gate sealing pieces are respectively detachably connected with the second end of the first gate plate and the second end of the second gate plate through screws;
the first gate sealing piece is arranged at the upper end of the first gate plate, and the second gate sealing piece is arranged at the lower end of the second gate plate;
and the fourth gate sealing pieces are arranged in two numbers, and are respectively installed on the side walls of the first gate plate and the second gate plate in a surrounding mode.
4. The device for testing the pressure-resistant sealing performance of the gate of the storage structure of the shield tool-changing robot as claimed in claim 3, wherein the gate device is further provided with a hydraulic system, and the hydraulic system is used for driving the first telescopic cylinder body, the second telescopic cylinder body, the first telescopic cylinder piston rod and the second telescopic cylinder piston rod to drive the first gate plate and the second gate plate to slide in the horizontal direction, so that the gate device can be automatically opened and closed.
5. The device for testing the pressure-resistant sealing performance of the gate of the storage structure of the shield cutter-changing robot as claimed in claim 4, wherein a counter is further installed on the gate device, and the counter is used for recording the opening and closing times of the gate and the sealing time of the gate.
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| CN202010298615.2A CN111442918B (en) | 2020-04-16 | 2020-04-16 | Pressure-resistant sealing performance testing device for gate of storage structure of shield tool-changing robot |
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| CN202010298615.2A CN111442918B (en) | 2020-04-16 | 2020-04-16 | Pressure-resistant sealing performance testing device for gate of storage structure of shield tool-changing robot |
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| CN113639929A (en) * | 2021-07-30 | 2021-11-12 | 扬州地龙机械有限公司 | Shield constructs owner bearing sealing system sealing performance test device |
| CN113776808B (en) * | 2021-10-08 | 2023-06-20 | 中国船舶科学研究中心 | Underwater hatch cover uncovering performance testing device and method |
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| CN101929911B (en) * | 2010-04-14 | 2012-11-07 | 同济大学 | In-line water tightness testing device for elastic sealing gasket of shield tunnel |
| CN203132832U (en) * | 2013-03-18 | 2013-08-14 | 平煤神马建工集团有限公司土建处 | Multi-caliber flange-type valve hydraulic test all-in-one machine |
| CN103267617B (en) * | 2013-05-13 | 2015-09-02 | 上海盾构设计试验研究中心有限公司 | Shield structure Butt sealing performance test apparatus |
| CN207689087U (en) * | 2017-12-15 | 2018-08-03 | 中天建设集团浙江安装工程有限公司 | A kind of valve pressure detection device |
| CN110005426A (en) * | 2019-05-06 | 2019-07-12 | 青岛科技大学 | Based on the improved shield machine transfer chamber of shield machine automation tool changing and tool changing technique |
| CN110685706B (en) * | 2019-10-31 | 2021-11-19 | 中铁工程装备集团有限公司 | Shield constructs quick-witted robot tool changing experimental apparatus |
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