CN113776807B - Device for testing performance of large-depth cabin-penetrating hand wheel shaft and operation method - Google Patents
Device for testing performance of large-depth cabin-penetrating hand wheel shaft and operation method Download PDFInfo
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- CN113776807B CN113776807B CN202111169600.7A CN202111169600A CN113776807B CN 113776807 B CN113776807 B CN 113776807B CN 202111169600 A CN202111169600 A CN 202111169600A CN 113776807 B CN113776807 B CN 113776807B
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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
- G01M13/00—Testing of machine parts
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
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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
- G01M13/00—Testing of machine parts
- G01M13/005—Sealing rings
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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
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
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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
- G01M3/36—Investigating fluid-tightness of structures by using fluid or vacuum by detecting change in dimensions of the structure being tested
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Examining Or Testing Airtightness (AREA)
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Abstract
The high-depth cabin penetrating hand wheel shaft performance testing device comprises a pressure-resistant cylinder body, wherein a cover plate is arranged on the top surface of the pressure-resistant cylinder body in a matched mode, a cabin penetrating hand wheel shaft assembly is welded in the middle of the cover plate, a high-pressure water pump is arranged at the lower bottom of the pressure-resistant cylinder body, the high-pressure water pump is connected to the inside of the pressure-resistant cylinder body through a water pipe, and an electric ball valve is arranged on the water pipe; the structure of the cabin penetrating hand wheel shaft assembly is as follows: the hand wheel shaft base is welded with the cover plate, a central hole is formed in the middle of the hand wheel shaft base, a hand wheel shaft is mounted in the central hole in a matched mode, the hand wheel shaft is axially positioned with the hand wheel shaft base through a step surface, a flange plate is mounted at the bottom of the hand wheel shaft base through a fastener and a sealing device, a plurality of strain gauges are mounted on the outer cylindrical surface of the hand wheel shaft base, a groove is further formed in the top of the hand wheel shaft base, and a water leakage alarm is mounted in the groove; the middle position above the pressure-resistant cylinder body is provided with a swinging cylinder, and the output end of the swinging cylinder is connected with a hand wheel shaft through a torsion sensor, so that the working is reliable.
Description
Technical Field
The invention relates to the technical field of test equipment, in particular to a large-depth cabin-penetrating hand wheel shaft performance test device and an operation method.
Background
With the continuous development of manned deep diving technology, the use depth of the hatch cover is also increasing. For the large-depth manned submersible, the hand wheel shaft of the access hatch cover is arranged on the inner side of the cover plate, a hand wheel shaft cabin penetrating structure does not exist, and the access hatch cover can only be unlocked and opened from the inner side of the hatch cover under normal use conditions; in order to meet the requirements of underwater lifesaving and the like, a hatch cover of the large-depth underwater platform is usually required to have a double-sided opening function, so that a cabin-penetrating hand wheel shaft is an indispensable structure of the hatch cover.
But in the deep underwater environment, the hatch cover can deform under the action of high-pressure water, so that the sealing surface of the cabin penetrating hand wheel shaft is relatively displaced, and if the sealing structure is unreasonable in design, the sealing is invalid, so that seawater enters the hatch cover, and the safety of an underwater platform is seriously threatened. In addition, in order to realize the locking and unlocking functions of the hatch cover, the cabin penetrating hand wheel shaft needs to rotate back and forth under normal pressure, and larger friction force can be generated if the precompression amount of the sealing ring is larger, so that the operation resistance of personnel can be increased, and the abrasion of the sealing ring can be accelerated; if the pre-compression of the seal ring is small, the seal ring can fail in a large-depth water environment. Therefore, the usability of the hand wheel shaft for passing through the cabin is an unavoidable technical problem for large-depth hatch cover application.
Disclosure of Invention
The applicant provides a large-depth cabin-penetrating hand wheel shaft performance testing device and an operation method aiming at the defects in the prior art, so that the use condition of the cabin-penetrating hand wheel shaft in a large-depth water environment can be simulated, whether leakage occurs to the sealing surface of the cabin-penetrating hand wheel shaft under the action of high-pressure water is checked, the rotating speed and the angle of the hand wheel shaft in the operation process of personnel are simulated, and friction torque is measured and sealing reliability is checked.
The technical scheme adopted by the invention is as follows:
the device comprises a pressure-resistant cylinder, wherein the top surface of the pressure-resistant cylinder is provided with a cover plate in a matched manner through an O-shaped sealing ring and a fastening piece, the middle part of the cover plate is welded with a cabin-penetrating hand wheel shaft assembly, the lower part of the pressure-resistant cylinder is provided with a high-pressure water pump, the high-pressure water pump is connected to the inside of the pressure-resistant cylinder through a water pipe, and an electric ball valve is arranged on the water pipe;
the structure of the cabin penetrating hand wheel shaft assembly is as follows: the hand wheel shaft base is welded with the cover plate, a central hole is formed in the middle of the hand wheel shaft base, a hand wheel shaft is installed in the central hole in a matched mode, the hand wheel shaft is axially positioned with the hand wheel shaft base through a step surface, a flange plate is installed at the bottom of the hand wheel shaft base through a fastener and a sealing device, a plurality of strain gauges are installed on the outer cylindrical surface of the hand wheel shaft base, a groove is further formed in the top of the hand wheel shaft base, and a water leakage alarm is installed in the groove;
the middle position above the pressure-resistant cylinder body is provided with a swinging cylinder, and the output end of the swinging cylinder is connected with a hand wheel shaft through a torsion sensor.
The further technical scheme is as follows:
the spherical crown convex surface of the cover plate is installed inwards and connected to the pressure-resistant cylinder body through bolts.
The cover plate is consistent with the structure of the large-depth hatch cover.
The O-shaped sealing ring is arranged between the cover plate and the sealing end face of the pressure-resistant cylinder.
The flange plate is connected and installed on the hand wheel axle base through bolts, and the upper end face of the flange plate is contacted with the bottom of the step of the hand wheel axle base.
The section of the flange plate is in a convex structure, and the end face and the cylindrical surface of the flange plate are respectively sealed by an end face sealing ring and a hand wheel shaft sealing ring.
The structure of the pressure-resistant cylinder body is as follows: the sealing device comprises a cylindrical body with an open top, wherein a through hole is formed in the middle of the bottom of the cylindrical body, and a pit for installing an O-shaped sealing ring is formed in the top surface of the cylindrical body.
An operation method of a large-depth cabin-penetrating hand wheel shaft performance testing device comprises the following operation steps:
the first step: installing the test device in place;
and a second step of: starting a high-pressure water pump to enable the high-pressure water pump to work;
and a third step of: the high-pressure water pump pumps high-pressure water into the pressure-resistant cylinder through the water pipe;
fourth step: closing the electric ball valve after the water pressure reaches a preset pressure value, so as to ensure that the convex surface of the spherical crown of the cover plate is a high-pressure water environment;
fifth step: observing and recording strain data of the strain gage, comparing the strain data with corresponding deformation values of the large-depth hatch cover, and calculating to obtain deformation error values so as to measure deformation simulation precision;
sixth step: after pressure maintaining is carried out for 30-60 minutes, judging whether leakage occurs on the sealing surface of the hand wheel shaft through a water leakage alarm;
seventh step: finishing tightness assessment of the hand wheel shaft;
eighth step: opening an electric ball valve to convert high-pressure water in the pressure-resistant cylinder into normal-pressure water, so as to simulate the stress state of the hatch cover in a normal-pressure environment;
ninth step: starting the swinging cylinder to enable the hand wheel shaft to reciprocally rotate 500-1000 times at a rotation speed of 30-60 degrees per second and within a range of 360-720 degrees, and observing and recording a feedback torque value of the torque sensor;
tenth step: and repeating the test process, and if the water leakage alarm detects that the sealing surface of the hand wheel shaft is leaked or the torque value of the hand wheel shaft is obviously changed after the hand wheel shaft is repeatedly rotated, considering that the sealing ring of the hand wheel shaft is worn, thereby measuring the service life of the sealing ring of the hand wheel shaft.
The beneficial effects of the invention are as follows:
the invention has compact and reasonable structure and convenient operation, can accurately simulate the deformation state of the mounting base of the cabin penetrating hand wheel shaft in a large-depth environment through the mutual cooperation of the pressure-resistant cylinder body, the sealing ring, the cabin penetrating hand wheel shaft assembly, the swinging cylinder, the torsion sensor, the high-pressure water-tightness performance of the hand wheel shaft sealing structure in a simulated high-pressure environment, can quantify the service life of the sealing ring through repeated tests, and can adapt to different hand wheel shaft sealing forms and measure the performance thereof only by replacing corresponding flange plates.
The device adopts a hydraulic drive and sensor signal feedback mode, and can realize full-automatic test, thereby avoiding the possibility of harming personnel safety when high-pressure water leaks and ensuring the accuracy of performance test data.
The invention belongs to the technical field of large-depth hatch covers, and is mainly used for testing the service performance of a cabin penetrating hand wheel shaft on the large-depth hatch cover and supporting the design and application of the large-depth hatch cover.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic structural view of the cabin passing hand wheel shaft assembly of the present invention.
FIG. 3 is a cross-sectional view of a pressure resistant cylinder of the present invention.
Wherein: 1. a cabin passing hand wheel shaft assembly; 2. a cover plate; 3. an O-shaped sealing ring; 4. a pressure-resistant cylinder; 5. a water pipe; 6. an electric ball valve; 7. a high pressure water pump; 8. a torsion sensor; 9. a swing cylinder;
101. a hand wheel axle base; 102. a strain gage; 103. a hand wheel shaft; 104. a flange plate; 105. an end face seal ring; 106. a hand wheel shaft sealing ring; 107. a water leakage alarm;
401. a cylindrical body; 402. pit; 403. and a through hole.
Detailed Description
The following describes specific embodiments of the present invention with reference to the drawings.
As shown in fig. 1, 2 and 3, the large-depth cabin penetrating hand wheel shaft performance testing device of the embodiment comprises a pressure-resistant cylinder 4, wherein a cover plate 2 is mounted on the top surface of the pressure-resistant cylinder 4 through an O-shaped sealing ring 3 and a fastener in a matched manner, a cabin penetrating hand wheel shaft assembly 1 is welded in the middle of the cover plate 2, a high-pressure water pump 7 is arranged at the lower bottom of the pressure-resistant cylinder 4, the high-pressure water pump 7 is connected to the internal communication of the pressure-resistant cylinder 4 through a water pipe 5, and an electric ball valve 6 is mounted on the water pipe 5;
the cabin penetrating hand wheel shaft assembly 1 has the structure that: the hand wheel shaft base 101 is welded with the cover plate 2, a central hole is formed in the middle of the hand wheel shaft base 101, a hand wheel shaft 103 is installed in the central hole in a matched mode, the hand wheel shaft 103 and the hand wheel shaft base 101 are axially positioned through a step surface, a flange plate 104 is installed at the bottom of the hand wheel shaft base 101 through a fastener and a sealing device, a plurality of strain gauges 102 are installed on the outer cylindrical surface of the hand wheel shaft base 101, a groove is further formed in the top of the hand wheel shaft base 101, and a water leakage alarm 107 is installed in the groove;
a swinging cylinder 9 is arranged at the middle position above the pressure-resistant cylinder body 4, and the output end of the swinging cylinder 9 is connected with a hand wheel shaft 103 through a torsion sensor 8.
The spherical crown convexity of the cover plate 2 is installed inward and is connected to the pressure-resistant cylinder 4 by bolts.
The deck 2 corresponds to the structure of a large-depth hatch cover.
An O-ring 3 is mounted between the cover plate 2 and the sealing end face of the pressure-resistant cylinder 4.
The flange plate 104 is mounted on the hand wheel shaft base 101 by bolting, and the upper end surface of the flange plate 104 is in contact with the step bottom of the hand wheel shaft base 101.
The section of the flange plate 104 is in a convex structure, and the end face and the cylindrical surface of the flange plate 104 are respectively sealed by an end face sealing ring 105 and a hand wheel shaft sealing ring 106.
The structure of the pressure-resistant cylinder 4 is as follows: the sealing device comprises a cylindrical body 401 with an open top, wherein a through hole 403 is formed in the middle of the bottom of the cylindrical body 401, and a pit 402 for installing an O-shaped sealing ring 3 is formed in the top surface of the cylindrical body 401.
The operation method of the large-depth cabin-penetrating hand wheel shaft performance testing device comprises the following operation steps:
the first step: installing the test device in place;
and a second step of: starting the high-pressure water pump 7 to enable the high-pressure water pump 7 to work;
and a third step of: the high-pressure water pump 7 pumps high-pressure water into the pressure-resistant cylinder 4 through the water pipe 5;
fourth step: closing the electric ball valve 6 after the water pressure reaches a preset pressure value, so as to ensure that the convex surface of the spherical crown of the cover plate 2 is a high-pressure water environment;
fifth step: the strain data of the strain gauge 102 are observed and recorded, compared with the corresponding deformation value of the large-depth hatch cover, the deformation error value is obtained through calculation, and therefore the deformation simulation precision is measured;
sixth step: after pressure maintaining is carried out for 30-60 minutes, judging whether leakage occurs on the sealing surface of the hand wheel shaft 103 through the water leakage alarm 107;
seventh step: finish the confidentiality assessment of the hand wheel axle 103;
eighth step: opening an electric ball valve 6 to convert high-pressure water in the pressure-resistant cylinder 4 into normal-pressure water, so as to simulate the stress state of the hatch cover in a normal-pressure environment;
ninth step: starting the swinging cylinder 9 to enable the hand wheel shaft 103 to reciprocally rotate 500-1000 times within the range of 360-720 degrees at the rotation speed of 30-60 degrees per second, and observing and recording the feedback torque value of the torque sensor 8 by simulating the process state of the hand wheel shaft 103 rotated by personnel;
tenth step: the above test process is repeated, if the water leakage alarm 107 detects that the sealing surface of the hand wheel shaft 103 leaks, or the torque value of the hand wheel shaft 103 changes obviously after a plurality of reciprocating rotations, the hand wheel shaft sealing ring 106 is considered to be worn, so that the service life of the hand wheel shaft sealing ring 106 is measured.
The specific structure and functions of the invention are as follows:
the invention mainly comprises a cabin penetrating hand wheel shaft assembly 1, a cover plate 2, an O-shaped sealing ring 3, a pressure-resistant cylinder body 4, a water pipe 5, an electric ball valve 6, a high-pressure water pump 7, a torsion sensor 8 and a swinging cylinder 9.
The cabin-penetrating hand wheel shaft assembly 1 comprises a hand wheel shaft base 101, a strain gauge 102, a hand wheel shaft 103, a flange plate 104, an end face sealing ring 105, a hand wheel shaft sealing ring 106 and a water leakage alarm 107.
The hand wheel axle base 101 is welded on the cover plate 2, the spherical crown convex surface of the cover plate 2 is installed inwards and is connected with the pressure-resistant cylinder 4 through bolts, and the cover plate 2 and the cover plate structure of the large-depth hatch cover are basically consistent so as to simulate the deformation of the hatch cover in the large-depth environment; the O-shaped sealing ring 3 is arranged between the cover plate 2 and the sealing end surface of the pressure-resistant cylinder 4; one end of the electric ball valve 6 is arranged outside a water flowing hole at the bottom of the pressure-resistant cylinder 4 through a water pipe 5, and the other end of the electric ball valve 6 is connected with the high-pressure water pump 7 through the water pipe 5; the swinging cylinder 9 is connected with the hand wheel shaft 103 through the torsion sensor 8, the swinging cylinder 9 can control the rotating speed and the rotating angle of the hand wheel shaft 103, and the torsion sensor 8 can measure the friction torque generated in the rotating process of the hand wheel shaft 103.
The hand wheel shaft 103 is arranged at the central hole of the hand wheel shaft base 101, and the hand wheel shaft 103 is axially positioned with the hand wheel shaft base 101 through a step surface; the end face sealing ring 105 and the hand wheel shaft sealing ring 106 are respectively arranged on the end face and the cylindrical surface of the flange plate 104, the flange plate 104 is arranged on the hand wheel shaft base 101 through bolt connection, and the upper end face of the flange plate 104 is contacted with the bottom of the step of the hand wheel shaft base 101; the strain gage 102 is mounted on the cylindrical surface of the hand wheel axle base 101 and is used for measuring the deformation generated by the hand wheel axle base 101 under the action of high-pressure water; the water leakage alarm 107 is installed in a groove at the upper portion of the hand wheel shaft base 101 for detecting whether leakage occurs at the sealing surface of the hand wheel shaft 103.
In the actual working process:
and starting the high-pressure water pump 7 to pump high-pressure water into the pressure-resistant cylinder 4, and closing the electric ball valve 6 after the water pressure reaches a preset pressure value, so as to ensure that the convex surface of the spherical crown of the cover plate 2 is a high-pressure water environment, and the concave surface of the spherical crown of the cover plate 2 is a normal-pressure environment, namely simulating the pressure-bearing state of the hatch cover in a large-depth environment. And (3) observing and recording strain data of the strain gauge 102, comparing the strain data with corresponding deformation values of the large-depth hatch cover, and calculating to obtain a deformation error value so as to measure deformation simulation accuracy. After the pressure is maintained for a certain time, whether the sealing surface of the hand wheel shaft 103 leaks or not is judged by the water leakage alarm 107, so that the tightness check of the hand wheel shaft penetrating through the cabin in a large depth is completed.
The electric ball valve 6 is opened to convert the high-pressure water in the pressure-resistant cylinder 4 into normal-pressure water, so that the stress state of the hatch cover in the normal-pressure environment is simulated. The swinging cylinder 9 is started to enable the hand wheel shaft 103 to rotate reciprocally for a certain number of times within a certain angle range at a certain speed, and the swinging cylinder is used for simulating the process state of a person rotating the hand wheel shaft, and observing and recording the feedback torque value of the torque sensor 8.
The above test process is repeated, if the water leakage alarm 107 detects that the sealing surface of the hand wheel shaft 103 leaks, or the torque value of the hand wheel shaft 103 changes obviously after a plurality of reciprocating rotations, the hand wheel shaft sealing ring 106 is considered to be worn, so that the service life of the hand wheel shaft sealing ring 106 is measured.
In addition, for the hand wheel shaft sealing ring 106 with different structures, the sealing performance and the service life of the hand wheel shaft sealing ring can be measured only by replacing the corresponding flange plate 104.
The above description is intended to illustrate the invention and not to limit it, the scope of which is defined by the claims, and any modifications can be made within the scope of the invention.
Claims (7)
1. The utility model provides a cabin hand wheel axle capability test device is worn to big degree of depth which characterized in that: the hydraulic pressure-resistant hydraulic cylinder comprises a pressure-resistant cylinder body (4), wherein a cover plate (2) is installed on the top surface of the pressure-resistant cylinder body (4) in a matched mode through an O-shaped sealing ring (3) and a fastening piece, a cabin penetrating hand wheel shaft assembly (1) is welded in the middle of the cover plate (2), a high-pressure water pump (7) is arranged at the bottom of the lower portion of the pressure-resistant cylinder body (4), the high-pressure water pump (7) is connected to the internal communication of the pressure-resistant cylinder body (4) through a water pipe (5), and an electric ball valve (6) is installed on the water pipe (5);
the cabin penetrating hand wheel shaft assembly (1) has the structure that: the hand wheel shaft base (101) is welded with the cover plate (2) on the outer end face of the hand wheel shaft base (101), a central hole is formed in the middle of the hand wheel shaft base (101), a hand wheel shaft (103) is installed in the central hole in a matched mode, the hand wheel shaft (103) and the hand wheel shaft base (101) are axially positioned through a step face, a flange plate (104) is installed at the bottom of the hand wheel shaft base (101) through a fastener and a sealing device, a plurality of strain gauges (102) are installed on the outer cylindrical surface of the hand wheel shaft base (101), a groove is formed in the top of the hand wheel shaft base (101), and a water leakage alarm (107) is installed in the groove;
a swinging cylinder (9) is arranged in the middle position above the pressure-resistant cylinder body (4), and the output end of the swinging cylinder (9) is connected with a hand wheel shaft (103) through a torsion sensor (8);
the structure of the pressure-resistant cylinder body (4) is as follows: the sealing device comprises a cylindrical body (401) with an open top, a through hole (403) is formed in the middle of the bottom of the cylindrical body (401), and a pit (402) for installing an O-shaped sealing ring (3) is formed in the top surface of the cylindrical body (401).
2. The large depth cabin passing hand wheel shaft performance testing device of claim 1, wherein: the spherical crown convex surface of the cover plate (2) is installed inwards and is connected to the pressure-resistant cylinder (4) through bolts.
3. The large depth cabin passing hand wheel shaft performance testing device of claim 1, wherein: the cover plate (2) is consistent with the structure of the large-depth hatch cover.
4. The large depth cabin passing hand wheel shaft performance testing device of claim 1, wherein: the O-shaped sealing ring (3) is arranged between the cover plate (2) and the sealing end face of the pressure-resistant cylinder body (4).
5. The large depth cabin passing hand wheel shaft performance testing device of claim 1, wherein: the flange plate (104) is mounted on the hand wheel axle base (101) through bolt connection, and the upper end face of the flange plate (104) is contacted with the step bottom of the hand wheel axle base (101).
6. The large depth cabin passing hand wheel shaft performance testing device of claim 1, wherein: the section of the flange plate (104) is of a convex structure, and the end face and the cylindrical surface of the flange plate (104) are respectively sealed by an end face sealing ring (105) and a hand wheel shaft sealing ring (106).
7. A method of operation using the large depth cabin passing hand wheel shaft performance test apparatus of claim 1, characterized by: the method comprises the following operation steps:
the first step: installing the test device in place;
and a second step of: starting a high-pressure water pump (7), and enabling the high-pressure water pump (7) to work;
and a third step of: the high-pressure water pump (7) pumps high-pressure water into the pressure-resistant cylinder (4) through the water pipe (5);
fourth step: closing the electric ball valve (6) after the water pressure reaches a preset pressure value, so as to ensure that the convex surface of the spherical crown of the cover plate (2) is a high-pressure water environment;
fifth step: the strain data of the strain gauge (102) are observed and recorded, compared with the corresponding deformation value of the large-depth hatch cover, the deformation error value is obtained through calculation, and therefore the deformation simulation precision is measured;
sixth step: after pressure maintaining is carried out for 30-60 minutes, judging whether leakage occurs on the sealing surface of the hand wheel shaft (103) through a water leakage alarm (107);
seventh step: finishing the tightness check of the hand wheel shaft (103);
eighth step: opening an electric ball valve (6) to convert high-pressure water in the pressure-resistant cylinder (4) into normal-pressure water, so as to simulate the stress state of the hatch cover in a normal-pressure environment;
ninth step: starting the swinging cylinder (9) to enable the hand wheel shaft (103) to reciprocally rotate 500-1000 times within the range of 360-720 degrees at the rotation speed of 30-60 degrees per second, and observing and recording the feedback torque value of the torsion sensor (8) by simulating the process state of a person rotating the hand wheel shaft (103);
tenth step: and repeating the test process, and if the water leakage alarm (107) detects that the sealing surface of the hand wheel shaft (103) is leaked or the torque value of the hand wheel shaft (103) is obviously changed after repeated reciprocating rotation, considering that the hand wheel shaft sealing ring (106) is worn, thereby measuring the service life of the hand wheel shaft sealing ring (106).
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| CN202111169600.7A CN113776807B (en) | 2021-10-08 | 2021-10-08 | Device for testing performance of large-depth cabin-penetrating hand wheel shaft and operation method |
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| CN202111169600.7A CN113776807B (en) | 2021-10-08 | 2021-10-08 | Device for testing performance of large-depth cabin-penetrating hand wheel shaft and operation method |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009115570A (en) * | 2007-11-06 | 2009-05-28 | Kyowa:Kk | Pump for hydraulic pressure test |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10105994B4 (en) * | 2001-02-09 | 2004-02-05 | Ettemeyer Ag | Process for optimizing the correctness of the theoretically determined deformation of a workpiece under load |
| CN202126321U (en) * | 2011-05-31 | 2012-01-25 | 上海增欣机电设备制造有限公司 | Torque testing system of valve opening and closing performance testing machine |
| CN103674539B (en) * | 2013-12-24 | 2016-03-09 | 重庆大学 | A kind of rock analogic drilling and proving installation and using method |
| CN105197183B (en) * | 2015-09-15 | 2017-05-03 | 江苏科技大学 | Self-balancing pressure-resistant casing device |
| CN108195686B (en) * | 2017-12-25 | 2021-04-02 | 湖南航天诚远精密机械有限公司 | High-voltage cabin penetration test equipment for electric wires and cables |
| CN109738293A (en) * | 2019-01-29 | 2019-05-10 | 湖南工程学院 | A kind of sealed compartment waterproof and pressure-resistant performance testing device and its test method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2009115570A (en) * | 2007-11-06 | 2009-05-28 | Kyowa:Kk | Pump for hydraulic pressure test |
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