CN205027503U - Submersible connector's vibration testing platform - Google Patents
Submersible connector's vibration testing platform Download PDFInfo
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- CN205027503U CN205027503U CN201520757835.1U CN201520757835U CN205027503U CN 205027503 U CN205027503 U CN 205027503U CN 201520757835 U CN201520757835 U CN 201520757835U CN 205027503 U CN205027503 U CN 205027503U
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- web joint
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- underwater connector
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Abstract
The utility model provides a submersible connector's vibration testing platform, includes: the base in the lateral wall bottom is installed to a lateral wall, wherein, installs array rack and pinion adjusting device on lateral wall, the base, and the rack and pinion adjusting device of lateral wall goes up horizontal installation has the array pneumatic cylinder, and the bottom of pneumatic cylinder draws the pressure sensor to be connected with one for carry out the external applied load loading to submersible connector, the top of pneumatic cylinder is equipped with the load connecting plate, and this pneumatic cylinder is connected with the load connecting plate to carry out the moment of torsion loading to submersible connector, install and install a set of pneumatic cylinder on the gear adjustment device on the base, carry the bottom surface of closing the connecting plate install one with submersible connector with year close the connecting plate and be connected last flange as an organic whole, install several lead screw adjusting device on the load connecting plate bottom surface, the utility model discloses the vibration testing condition of submersible connector under the operating condition not only can be simulated, the vibration testing problem to submersible connector has been solved, and, can control pressurization and pressure release numerical value and control experiment process effectively.
Description
Technical field
The utility model relates to a kind of vibration-testing apparatus, particularly relates to a kind of vibration test table being applicable to underwater connector, belongs to Offshore Engineering field.
Background technology
At present, the exploitation of marine oil, gas is just extended to deep-sea by shallow sea area, and develops from the deep water of below 300m to the ultra-deep-water of below 3000m, and the drilling depth of water record of deep-sea, world petroleum-gas fiedl constantly refreshes, and within 2010 years, reaches 2953m under water.Under the operating mode of seabed, due to the percussive action of outside seawater and internal flow, underwater connector can vibrate, and long-term vibration force will cause connector to occur fatigue breakdown, affects the reliability of connector.Because the current vibration-testing for underwater connector does not also have corresponding proving installation, this is by the serious development constraining underwater connector.In order to solve the problem, when researching and developing underwater connector, carry out necessary vibration-testing with regard to reply underwater connector, to reduce the probability that fatigue breakdown appears in connector under water, ensure the reliability and security of underwater connector.
Utility model content
Fundamental purpose of the present utility model is the above-mentioned shortcoming overcoming prior art existence, and a kind of vibration test table of underwater connector is provided, it can not only the vibration-testing situation of Simulated Water lower connector under actual condition, whether quality and the performance of inspection underwater connector meet the demands, and solve the vibration-testing problem for underwater connector; And, effectively can control pressurization and pressure release numerical value, exactly Control release process; When there being emergency condition, counter-measure can be adopted in time, ensure that security and the accuracy of testing experiment; For the underwater safety of underwater connector provides technical guarantee.
The purpose of this utility model is realized by following technical scheme:
A kind of vibration test table of underwater connector, it is characterized in that: comprising: a sidewall, be arranged on the base of sidewall bottom, wherein, sidewall, base are separately installed with array rack-and-pinion adjusting gear, rack-and-pinion adjusting gear on sidewall is horizontally installed with array hydraulic cylinder, and the bottom of this hydraulic cylinder is connected with a tension-compression sensor, for carrying out loading to underwater connector; The top of hydraulic cylinder is provided with load web joint, and this hydraulic cylinder is connected with load web joint, in order to carry out moment of torsion loading to underwater connector; Be arranged on the gear adjusting gear on base and one group of hydraulic cylinder be vertically installed, carry close the bottom surface of web joint be provided with one in order to by underwater connector with carry the upper flange closing web joint and connect as one; Load web joint bottom surface is provided with several leading screw adjusting gear; When loading vibration to underwater connector and carrying out vibration-testing, the several hydraulic cylinders being arranged on the same side in one group of hydraulic cylinder on base do without range retraction movement, and several hydraulic cylinders of opposite side do and stretch out motion without range; When the power of stretching out and withdrawal force reach predicted value, hydraulic cylinder starts reverse operation, stretches out hydraulic cylinder and does without range retraction movement, and retraction hydraulic cylinder does without the overhanging motion of range; When withdrawal force and the power of stretching out reach predicted value, hydraulic cylinder is reverse operation again, the hydraulic cylinder of both sides works together at present repeatedly in this operating mode, the external tensility of hydraulic cylinder and the checker of withdrawal force, make load web joint be subject to the alternating action of both forward and reverse directions moment of torsion in perpendicular, thus drive underwater connector to carry out vibration-testing.
Described rack-and-pinion adjusting gear comprises: the first guide rail, be arranged on the first guide rail both sides tooth bar, coordinate be arranged on gear slider on the first guide rail, tooth bar, be arranged on the cogwheel gearing of gear slider side, tension-compression sensor, the hydraulic cylinder be arranged on successively in gear slider, wherein, guide rail is cloudy T-slot, it is the positive T-slot coordinated with guide rail bottom gear slider, gear slider coordinates with the T-shaped face of guide rail, enable gear slider at the first slide on rails, large load can also be born; Tension-compression sensor is in order to measure the acting force of hydraulic cylinder and to feed back; Cogwheel gearing rotates in order to driven gear.
Described base is provided with a lower flange in order to be connected with underwater connector.
Described leading screw adjusting gear comprises: be contained in the second guide rail on load web joint bottom surface, the leading screw be arranged in guide rail, coordinate the screw slider be arranged on leading screw, wherein, guide rail is cloudy T-slot, and leading screw is arranged in cloudy T-slot; Screw slider is provided with positive T-slot, and positive T-slot is provided with the motion thread hole coordinating with leading screw and install; One end of leading screw is provided with handwheel, drives leading screw to rotate by rotation hand wheel, thus, the position of adjusting screw slide block on guide rail.
Described cogwheel gearing is provided with: an oil motor, and the output shaft of this oil motor is connected with a turbine and worm speed reduction unit; The output terminal of this turbine and worm speed reduction unit is connected with the side axle head of the first gear shaft, first gear is arranged on the first tooth rest by the first sliding bearing, the opposite side axle head of the first gear shaft is connected with one end of a shaft coupling, the other end of this shaft coupling is provided with the second gear, and the second gear is arranged on the second tooth rest by the second sliding bearing; First, second tooth rest is arranged on gear reduction unit framework respectively; Gear acceleration mechanism frame is arranged on gear slider; During work, the Driving Torque of oil motor and rotating speed pass to first, second gear by turbine and worm speed reduction unit and shaft coupling, make two gear synchronous motions, and then driven wheel slide block are at the first guide rail, the second moving on rails.
Described sidewall is vertically arrange, and base is horizontal positioned.
Within described year, close web joint to be horizontally disposed with, carry the one end of closing web joint and be arranged on sidewall; Carry to close on web joint and be provided with a moment of flexure plate, the earrings of hydraulic cylinder is carried by a moment of flexure plate and closes web joint connection; Carry the edge closing web joint and guardrail is installed.
The beneficial effects of the utility model: the utility model is owing to adopting technique scheme, it can not only the vibration-testing situation of Simulated Water lower connector under actual condition, whether quality and the performance of inspection underwater connector meet the demands, and solve the vibration-testing problem for underwater connector; And, effectively can control pressurization and pressure release numerical value, exactly Control release process; When there being emergency condition, counter-measure can be adopted in time, ensure that security and the accuracy of testing experiment; For the underwater safety of underwater connector provides technical guarantee.
Accompanying drawing explanation
Fig. 1 is the utility model one-piece construction schematic perspective view.
Fig. 2 is the utility model spatial structure schematic side view.
Fig. 3 is the utility model schematic side view.
Fig. 4 is the utility model rack-and-pinion adjusting gear structural representation.
Fig. 5 is the utility model leading screw adjusting gear schematic diagram.
Fig. 6 is the utility model gear reduction part structural representation.
Fig. 7 is the utility model pulling force or pressure-loaded principle of work schematic diagram.
Fig. 8 is that the utility model moment of flexure loads principle of work schematic diagram.
Fig. 9 is that the utility model vibration loads principle of work schematic diagram.
Major label description in figure:
1. base, 2. sidewall, 3. rack-and-pinion adjusting gear, 301. first groups of rack-and-pinion adjusting gears, 302, second group of rack-and-pinion adjusting gear, 303. the 3rd groups of rack-and-pinion adjusting gears, 4. hydraulic cylinder, 401. first groups of hydraulic cylinders, 402 second groups of hydraulic cylinders, 403, 3rd group of hydraulic cylinder, 5. moment of flexure plate, 6. year conjunction web joint, 7. guardrail, 8. leading screw adjusting gear, 9. upper flange, 10. connecting pipe, 11. underwater connectors, 12. lower flanges, 13. first guide rails, 131. second guide rails, 14. tooth bars, 15. gear sliders, 16. tension-compression sensors, 17. cogwheel gearings, 18. screw sliders, 19. leading screws, 20. leading screw handwheels, 21. oil motors, 22. shaft couplings, 23. gears, 24. tooth rests, 25. gear reduction unit frameworks, 26. turbine and worm speed reduction units, 27. pulling force or pressure, 28. moments of torsion, 29. moments of flexure, 30. vibrations, 31. vibrations.
Embodiment
As Fig. 1, Fig. 2, Fig. 3, shown in Fig. 4, the utility model comprises: sidewall 2, employing register pin location and bolt group connected mode are arranged on the base 1 bottom sidewall 2, wherein, sidewall 2, base 1 are separately installed with mutually isostructural array rack-and-pinion adjusting gear 3, that is: first group of rack-and-pinion adjusting gear, 301, second group of rack-and-pinion adjusting gear the 302, three group of rack-and-pinion adjusting gear 303, wherein, sidewall 2 is mounted opposite two groups, that is: second group of rack-and-pinion adjusting gear 302 and the 3rd group of rack-and-pinion adjusting gear 303; First group of rack-and-pinion adjusting gear 301 is then arranged on base 1;
Second and third group rack-and-pinion adjusting gear (302,303) several hydraulic cylinder 4 is horizontally installed with on, hydraulic cylinder 4 is two groups, wherein, second group of hydraulic cylinder (402,403) (second and third group hydraulic cylinder 402,403 of the present embodiment is respectively two), with a wherein example explanation: the bottom of second group of hydraulic cylinder 402 is connected with tension-compression sensor 16 by flange, and fastening by bolt group, for carrying out loading to underwater connector 11; The top of second group of hydraulic cylinder 402 is provided with load web joint 6, second group of hydraulic cylinder 402 and is connected with load web joint 6, and is located by register pin; Its effect is: with the hydraulic cylinder of two in second group 402 with carry and close web joint 6 mating reaction and carry out moment of torsion loading to underwater connector 11; Base 1 is provided with one group of gear adjusting gear 301, gear adjusting gear 301 is vertically provided with one group of hydraulic cylinder 4, carry the place of bottom center of closing web joint 6, mode with bolts is provided with upper flange 9, and underwater connector 11 is closed web joint 6 and connects as one with carrying by web joint 10 by upper flange 9.Wherein, the upper end of web joint 10 is connected by bolt group, and lower end is connected 11 by welding manner with underwater connector.Underwater connector 11 is parts to be tested.Lower flange 12 mode with bolts is arranged on base 1, plays underwater connector 11 and base 1 connection function; Bottom surface is provided with leading screw adjusting gear 8 to load web joint 6.
The rack-and-pinion adjusting gear 3 of the present embodiment is three covers, and two sleeve gear tooth bar adjusting gears 3 are mounted opposite on the side wall 2, is a set ofly arranged on base 1.Three sleeve gear tooth bar adjusting gear 3 structures are identical, for wherein a set of explanation, rack-and-pinion adjusting gear 3 comprises: the first guide rail 13, mode with bolts is arranged on the tooth bar 14 of the first guide rail 13 both sides, fit system is adopted to be arranged on the first guide rail 13, gear slider 15 on tooth bar 14, adopt the cogwheel gearing 17 of welded and installed in gear slider 14 side, mode with bolts is arranged on the tension-compression sensor 16 in gear slider 14 successively, hydraulic cylinder 4, wherein, guide rail 13 is cloudy T-slot, it is the positive T-slot coordinated with guide rail 13 bottom gear slider 14, gear slider 14 coordinates with the T-shaped face of guide rail 13, gear slider 14 can slided on the first guide rail 13, large load can also be born, tension-compression sensor 16 is in order to measure the acting force of first group of hydraulic cylinder 4 and to feed back, cogwheel gearing 17 rotates in order to driven gear 23.
As shown in Figure 5, leading screw adjusting gear 8 is four, and four leading screw adjusting gear 8 positions are relative.For one of them explanation, leading screw adjusting gear 8 comprises: mode with bolts is arranged on the second guide rail 131 on load web joint 6 bottom surface, mode with bolts is arranged on leading screw 19 in the second guide rail 131, coordinate the screw slider 18 be arranged on leading screw 19, wherein, second guide rail 13 is cloudy T-slot, and leading screw 19 is arranged in cloudy T-slot; Screw slider 18 is provided with positive T-slot, and positive T-slot is provided with trapezoidal motion thread hole, and it coordinates with leading screw 19 installs.One end mode with bolts of leading screw 19 is provided with handwheel 20, and manually rotation hand wheel 20 drives 19 leading screws to rotate, thus, the position of adjusting screw slide block 18 on the second guide rail 13.
Above-mentioned sidewall 2 is vertically arrange, and base 1 is horizontal positioned, and this base 1 is the overall stressed member of testing table and operating platform.
Above-mentioned first group of hydraulic cylinder 401 (the present embodiment first group of hydraulic cylinder 401 is four), the top of first group of hydraulic cylinder 401 be positioned at load web joint 6 bottom surface leading screw adjusting gear 8 and be connected; The bottom of first group of hydraulic cylinder 401 is connected with first group of gear adjusting gear, and its effect is: with the hydraulic cylinder of four in first group 401 with carry and close web joint 6 mating reaction and carry out pulling force or pressure-loaded to underwater connector 11.
Within above-mentioned year, close web joint 6 to be horizontally disposed with, its one end is arranged on sidewall 2; Carry close the earrings that web joint 6 is provided with moment of flexure plate the 5, three group of hydraulic cylinder 403 by moment of flexure plate 5 with year close web joint 6 and be connected; 3rd group of hydraulic cylinder 103 acting in conjunction carries out moment of flexure loading to underwater connector 11.The edge carrying conjunction web joint 6 is bolted mode and is provided with guardrail 7, in order to play a protective role to installation personnel.
As shown in Figure 6, cogwheel gearing 17 is provided with: oil motor 21, the output shaft of oil motor 21 is connected with the input end turn key axis hole of turbine and worm speed reduction unit 26, and oil motor 21 output terminal flange is connected by bolt with the input end flange of turbine and worm speed reduction unit 26, the output terminal turn key axis hole of turbine and worm speed reduction unit 26 is connected with the side axle head of gear 23 axle, the output terminal flange of turbine and worm speed reduction unit 26 is connected by bolt with the first tooth rest 24 1 side end face, gear 23 is arranged on tooth rest 24 by the first sliding bearing, gear 23 is connected by flat key with its axle, the opposite side axle head of the axle of gear 23 is connected with one end of shaft coupling 22, the structure of the other end of shaft coupling 22 is another group gear structure, that is: the other end of shaft coupling 22 is provided with the second gear, second gear is arranged on the second tooth rest by the second sliding bearing, pre-structure is identical with it.First, second tooth rest adopts bolt to be arranged on gear reduction unit framework 25 respectively.Gear acceleration mechanism frame 25 adopts welding manner to be arranged on gear slider 15.During work, the Driving Torque of oil motor 21 and rotating speed pass to first, second gear 23 by turbine and worm speed reduction unit 26 and shaft coupling 22, and two gears 23 are synchronized with the movement, and then driven wheel slide block 15 moves on the first guide rail 13, second guide rail 131.
Principle of work of the present utility model:
As shown in Figure 7, when carrying out external applied load test to underwater connector 11, underwater connector 11 is fixed between base 1 and composite connection board 6, just can carries out pulling force or pressure 27 load test to underwater connector 11.When carrying out external applied load pulling force to underwater connector 11 or pressure 27 tests, four vertical hydraulic cylinders 401 work simultaneously, equidirectional motion, produce pulling force or pressure 27.
When loading moment of torsion 28 to underwater connector 11 and carrying out torsion test, two hydraulic cylinders one in second group of hydraulic cylinder 402 only provide pulling force, another provides pressure, acts on respectively on year two earrings of conjunction web joint 6, applies torque load to underwater connector 11.
As shown in Figure 8, when loading moment of flexure 29 to underwater connector 11 and carrying out torsion test, two groups of hydraulic cylinders in the 3rd group of hydraulic cylinder 403 produce pulling force or pressure simultaneously, masterpiece is used on moment of flexure plate 5, power is passed to earrings by moment of flexure plate 5, thus, bending load is applied to underwater connector 11.
As shown in Figure 9, vibration (30 is being loaded to underwater connector 11, 31) when carrying out vibration-testing, in first group of hydraulic cylinder 401, two hydraulic cylinders of the same side do without range retraction movement, two hydraulic cylinders of opposite side do and stretch out motion without range, when the power of stretching out and withdrawal force reach predicted value, hydraulic cylinder starts reverse operation, stretching out hydraulic cylinder does without range retraction movement, retraction hydraulic cylinder does without the overhanging motion of range, when withdrawal force and the power of stretching out reach predicted value, hydraulic cylinder is reverse operation again, four hydraulic cylinders repeatedly work under this operating mode, the external tensility of hydraulic cylinder and the checker of withdrawal force, load web joint 6 is made to be subject to the alternating action of both forward and reverse directions moment of torsion in perpendicular, thus drive underwater connector 11 to carry out vibration-testing.The amplitude of vibration-testing and vibration frequency can adjust within the specific limits according to test request, to meet the simulation needs to different seabeds operating mode.Compared with four hydraulic cylinder synchronous work in pulling force or pressure 27 load test, the hydraulic cylinder synchronous working between two in vibration-testing 30,31, and in test process, hydraulic cylinder does working in reciprocating mode.
The above, it is only preferred embodiment of the present utility model, not any pro forma restriction is done to the utility model, every above embodiment is done according to technical spirit of the present utility model any simple modification, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.
Claims (7)
1. the vibration test table of a underwater connector, it is characterized in that: comprising: a sidewall, be arranged on the base of sidewall bottom, wherein, sidewall, base are separately installed with array rack-and-pinion adjusting gear, rack-and-pinion adjusting gear on sidewall is horizontally installed with array hydraulic cylinder, and the bottom of this hydraulic cylinder is connected with a tension-compression sensor, for carrying out loading to underwater connector; The top of hydraulic cylinder is provided with load web joint, and this hydraulic cylinder is connected with load web joint, in order to carry out moment of torsion loading to underwater connector; Be arranged on the gear adjusting gear on base and one group of hydraulic cylinder be vertically installed, carry close the bottom surface of web joint be provided with one in order to by underwater connector with carry the upper flange closing web joint and connect as one; Load web joint bottom surface is provided with several leading screw adjusting gear; When loading vibration to underwater connector and carrying out vibration-testing, the several hydraulic cylinders being arranged on the same side in one group of hydraulic cylinder on base do without range retraction movement, and several hydraulic cylinders of opposite side do and stretch out motion without range; When the power of stretching out and withdrawal force reach predicted value, hydraulic cylinder starts reverse operation, stretches out hydraulic cylinder and does without range retraction movement, and retraction hydraulic cylinder does without the overhanging motion of range; When withdrawal force and the power of stretching out reach predicted value, hydraulic cylinder is reverse operation again, the hydraulic cylinder of both sides works together at present repeatedly in this operating mode, the external tensility of hydraulic cylinder and the checker of withdrawal force, make load web joint be subject to the alternating action of both forward and reverse directions moment of torsion in perpendicular, thus drive underwater connector to carry out vibration-testing.
2. the vibration test table of underwater connector according to claim 1, it is characterized in that: described rack-and-pinion adjusting gear comprises: the first guide rail, be arranged on the tooth bar of the first guide rail both sides, coordinate and be arranged on the first guide rail, gear slider on tooth bar, be arranged on the cogwheel gearing of gear slider side, be arranged on the tension-compression sensor in gear slider successively, hydraulic cylinder, wherein, guide rail is cloudy T-slot, it is the positive T-slot coordinated with guide rail bottom gear slider, gear slider coordinates with the T-shaped face of guide rail, enable gear slider at the first slide on rails, large load can also be born, tension-compression sensor is in order to measure the acting force of hydraulic cylinder and to feed back, cogwheel gearing rotates in order to driven gear.
3. the vibration test table of underwater connector according to claim 1, is characterized in that: described base is provided with a lower flange in order to be connected with underwater connector.
4. the vibration test table of underwater connector according to claim 1, it is characterized in that: described leading screw adjusting gear comprises: be contained in the second guide rail on load web joint bottom surface, the leading screw be arranged in guide rail, coordinate the screw slider be arranged on leading screw, wherein, guide rail is cloudy T-slot, and leading screw is arranged in cloudy T-slot; Screw slider is provided with positive T-slot, and positive T-slot is provided with the motion thread hole coordinating with leading screw and install; One end of leading screw is provided with handwheel, drives leading screw to rotate by rotation hand wheel, thus, the position of adjusting screw slide block on guide rail.
5. the vibration test table of underwater connector according to claim 2, is characterized in that: described cogwheel gearing is provided with: an oil motor, and the output shaft of this oil motor is connected with a turbine and worm speed reduction unit; The output terminal of this turbine and worm speed reduction unit is connected with the side axle head of the first gear shaft, first gear is arranged on the first tooth rest by the first sliding bearing, the opposite side axle head of the first gear shaft is connected with one end of a shaft coupling, the other end of this shaft coupling is provided with the second gear, and the second gear is arranged on the second tooth rest by the second sliding bearing; First, second tooth rest is arranged on gear reduction unit framework respectively; Gear acceleration mechanism frame is arranged on gear slider; During work, the Driving Torque of oil motor and rotating speed pass to first, second gear by turbine and worm speed reduction unit and shaft coupling, make two gear synchronous motions, and then driven wheel slide block are at the first guide rail, the second moving on rails.
6. the vibration test table of underwater connector according to claim 1, is characterized in that: described sidewall is for vertically arranging, and base is horizontal positioned.
7. the vibration test table of underwater connector according to claim 1, is characterized in that: within described year, close web joint and be horizontally disposed with, and carries the one end of closing web joint and is arranged on sidewall; Carry to close on web joint and be provided with a moment of flexure plate, the earrings of hydraulic cylinder is carried by a moment of flexure plate and closes web joint connection; Carry the edge closing web joint and guardrail is installed.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520757835.1U CN205027503U (en) | 2015-09-28 | 2015-09-28 | Submersible connector's vibration testing platform |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520757835.1U CN205027503U (en) | 2015-09-28 | 2015-09-28 | Submersible connector's vibration testing platform |
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| CN205027503U true CN205027503U (en) | 2016-02-10 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107356395A (en) * | 2017-07-07 | 2017-11-17 | 郑州云海信息技术有限公司 | A kind of rack server impact shock simulating test device and method |
| CN110927474A (en) * | 2018-09-19 | 2020-03-27 | 西安高压电器研究院有限责任公司 | Electrical performance test system of marine electrical product in vibration environment |
| WO2021248725A1 (en) * | 2020-06-12 | 2021-12-16 | 苏州苏试试验集团股份有限公司 | Integrated test device capable of loading tension or pressure and vibration |
| CN114241840A (en) * | 2021-12-14 | 2022-03-25 | 南京城市职业学院(南京开放大学) | Think political affairs education based VR interactive experience device |
-
2015
- 2015-09-28 CN CN201520757835.1U patent/CN205027503U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107356395A (en) * | 2017-07-07 | 2017-11-17 | 郑州云海信息技术有限公司 | A kind of rack server impact shock simulating test device and method |
| CN110927474A (en) * | 2018-09-19 | 2020-03-27 | 西安高压电器研究院有限责任公司 | Electrical performance test system of marine electrical product in vibration environment |
| WO2021248725A1 (en) * | 2020-06-12 | 2021-12-16 | 苏州苏试试验集团股份有限公司 | Integrated test device capable of loading tension or pressure and vibration |
| CN114241840A (en) * | 2021-12-14 | 2022-03-25 | 南京城市职业学院(南京开放大学) | Think political affairs education based VR interactive experience device |
| CN114241840B (en) * | 2021-12-14 | 2024-01-19 | 南京城市职业学院(南京开放大学) | Virtual Reality (VR) interactive experience device based on thinking political education |
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Address after: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee after: Offshore Oil Engineering Co., Ltd. Patentee after: China Offshore Oil Group Co., Ltd. Co-patentee after: Harbin Engineering Univ. Address before: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee before: Offshore Oil Engineering Co., Ltd. Patentee before: China National Offshore Oil Corporation Co-patentee before: Harbin Engineering Univ. |