CN202110062U - Automobile manual transmission testing device - Google Patents
Automobile manual transmission testing device Download PDFInfo
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- CN202110062U CN202110062U CN 201120208573 CN201120208573U CN202110062U CN 202110062 U CN202110062 U CN 202110062U CN 201120208573 CN201120208573 CN 201120208573 CN 201120208573 U CN201120208573 U CN 201120208573U CN 202110062 U CN202110062 U CN 202110062U
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Abstract
The utility model relates to an automobile manual transmission testing device. A frequency converter motor is arranged on a frame, an electromagnetic clutch is arranged at a shaft end of the frequency converter motor, one end of the electromagnetic clutch is connected with an input shaft coupling, the other end of the input shaft coupling is connected with an input end connecting shaft, and an input shaft rotation speed sensor is arranged on a transmission shaft; an eddy current machine is fixed on a platform, one end of a rotator shaft of the eddy current machine is connected with an output end connecting shaft through an output end coupling, and an output shaft rotation speed sensor is arranged at the other end of the rotator shaft; the arm of force at one side of a stator of the eddy current machine is connected with a pull and pressure sensor, and the arm of force at the other side of the stator of the eddy current machine is provided with an adjusting bolt; a slide is arranged below the platform and installed on a guide rail, the platform is connected with a guide screw which is connected with a stepping motor through a gear box, a transmission is connected with the frame through a transmission connecting plate, and a control cabinet is connected with the frequency converter motor through a cable. The automobile manual transmission testing device can make non-disassembly bench test of a manual mechanical transmission, and the test results can be used as the basis for evaluating the performance of the transmission.
Description
Technical field
The utility model relates to a kind of testing equipment, is specifically related to a kind of manual gear of vehicle test unit.
Background technology
Automotive transmission is a crucial assembly of automobile, and the quality of its performance directly has influence on dynamic property, economy and the reliability of automobile.For this reason; In China's relevant criterion " QC/T568-1999 automotive mechanical transmission bench test method " and " the GB5372-85 automotive transmission service technique condition " relevant provisions has all been done in the technical requirement of automotive transmission qualification test, new product factory inspection and maintenance factory inspection, and explicitly called for and carry out bench test.But China has only larger variator factory to have the gearbox testrigs of specialty at present.Product can be divided into open power streaming (abbreviating " open type " as) and type closed power flow (abbreviating " enclosed " as) two big classes from formal branch both at home and abroad at present.The testing equipment that variator factory uses can be divided into two types of electricity sealing and mechanical closes by feedback form.The mechanical close formula need increase a series of mechanical parts, complex structures such as accompanying examination variator, transmission case and loader, noise is big, transmission efficiency is low, energy loss is big; Malleable load not in the running; Moment is wayward, and experimental performance is stable inadequately, and versatility is relatively poor.The electric energy of electrical-closed testing table will return electrical network, to electric equipment operation synchronously, the having relatively high expectations of homophase, electrical equipment is complicated.These device structures and system complex, auxiliary device is many, need special-purpose laboratory to settle, and cost is high.Closed loop test-bed is usually used in variator manufacturing company, is used for long durability test consuming time.And for variator maintenance factory, gearing mesh is flexible during shift of transmission after requiring to repair, and interlocking, self-locking, reverse gear locking device are effective, shelves and trip stop phenomenon voluntarily must not be arranged disorderly, in service having no abnormal sound.Need not to carry out durability test, generally adopt the open type testing table.The common electric machine that is that uses in the maintenance factory at present drives, and no charger or device for power absorption can only carry out break-in in short-term and unloaded shifting testing to variator.This type testing equipment, test findings no datat support that the test function restriction is more, and actual effect can not satisfy the needs of modern variator maintenance.This situation has caused the repair rate in the manual transmission maintenance high, situation such as man-hour, waste of material, and the stagnation of feasible maintenance level.
Summary of the invention
The utility model technical matters to be solved provides a kind of manual gear of vehicle test unit, the vehicle ' resistance is controlled the actual operating mode of simulation variator through TT&C system; And acquisition process operation in real time and test parameter, realize quantitative analysis, test and generate test result according to optional test project and program; And then the performance of variator made an appraisal; Thereby reduce the repair rate of manual transmission, reduce work hours, the waste of material, improve the maintenance level.
The technical scheme of the utility model: a kind of manual gear of vehicle test unit; It comprises variable-frequency motor, electromagnetic clutch, transmission shaft, input end shaft coupling, input end coupling shaft, frame, output terminal coupling shaft, output terminal shaft coupling, current vortex machine, pull pressure sensor, OSS, platform, guide rail, slide block, the arm of force, adjusting bolt, stepper motor, gear case, leading screw, transfer input shaft speed sensors, variator web joint and switch board; Frame is provided with variable-frequency motor, current vortex machine charger; The axle head of variable-frequency motor is provided with an electromagnetic clutch; One end of electromagnetic clutch is connected with the input shaft shaft coupling through transmission shaft; The other end of input shaft shaft coupling is connected with the input end coupling shaft, and transmission shaft is provided with the transfer input shaft speed sensors; The current vortex machine rotor axle of current vortex machine charger is fixed on the platform through bearing, bearing seat, support, and current vortex machine rotor axle one end is connected with the output terminal coupling shaft through the output terminal shaft coupling, and the other end is provided with OSS; Current vortex machine stator both sides all are connected with the arm of force, and the arm of force of a side is connected with pull pressure sensor, and the arm of force of opposite side is provided with the adjusting bolt; Platform is arranged with two groups of slide blocks, and two groups of slide blocks are arranged on two guide rails, and platform is connected with leading screw, and leading screw is connected with stepper motor through gear case, and variator is connected with frame through the variator web joint, and switch board is connected with variable-frequency motor through optical cable; The front of switch board is provided with frequency converter, printer, industrial control computer, keyboard and mouse, display and guidance panel, and industrial control computer is connected with printer, keyboard and mouse, display; Guidance panel is provided with electrical source of power push button, electrical source of power X button, electric machine speed regulation knob, frequency converter panel, power reversing switch, on-load voltage table, loading current table, power switch, electromagnetic switching clutch, loading adjusting knob and electromagnetic clutch control mode switch is set; The back of switch board is provided with power supply, Loading Control unit, signals collecting terminal strip, data acquisition process card, tach signal processing unit, and power supply is connected with Loading Control unit, signals collecting terminal strip, data acquisition process card, tach signal processing unit; Power switch is connected with electromagnetic clutch, printer, industrial control computer, power supply and Loading Control unit; Variable-frequency motor is connected with frequency converter, and frequency converter is provided with panel with the electrical source of power push button with electrical source of power X button, electric machine speed regulation knob, frequency converter, the power reversing switch is connected; Electromagnetic clutch is connected with electromagnetic switching clutch, electromagnetic clutch control mode switch; Loading adjusting knob is connected with Loading Control unit, on-load voltage table, loading current table, signals collecting terminal strip; Signals collecting terminal strip and data acquisition process card connection, the tach signal processing unit is connected with industrial control computer through the data acquisition process card.
The utility model compared with prior art has following beneficial effect:
(1) adopts air-cooled current vortex machine to make charger, and designed the loading torsion-testing apparatus, realized that continuous and quantitative loads and the output torque test;
(2) application sensors, single-chip microcomputer and industrial control computer technology are carried out data acquisition process, have realized the robotization processing of data and the digitizing of detection index;
(3) design stepper motor driven position adjusting mechanism, can adapt to different model variator test request, improved the automaticity of complete machine again;
(4) electromagnetic clutch is applied to testing table, moves soft, easy to operate;
(5) power input coupling arrangement design science is reasonable, has both solved the centering problem when variator is installed, and simplifies the structure again.
(6) special test software has been realized man-machine conversation, is convenient to operation, is easy to upgrading, has multiple display modes such as numeral, curve, simulation secondary instrument, can generate the testing journal sheet automatically, and query history test data at any time;
(7) but parameter values such as real-time testing rotating speed, speed ratio, actual vehicle speed, output torque, output power, transmission efficiency, temperature and vibration.
(8) through TT&C system the vehicle ' resistance is controlled the actual operating mode of simulation variator, and acquisition process operation in real time and test parameter; Realize quantitative analysis; Test and generate test result according to optional test project and program, and then the performance of variator is made an appraisal, thus the repair rate of reduction manual transmission; Reduce work hours, the waste of material, improve the maintenance level.
Description of drawings
Fig. 1 is the front view of the utility model;
Fig. 2 is the vertical view of the utility model;
Fig. 3 is the right view of the utility model;
The structural representation of switch board in Fig. 4 the utility model;
Fig. 5 is the rear view of Fig. 4;
The block diagram of data acquisition processing system in Fig. 6 the utility model;
The block diagram of TT&C software module in Fig. 7 the utility model;
The circuit block diagram of Fig. 8 the utility model.
Embodiment
A kind of manual gear of vehicle test unit; It comprises variable-frequency motor 1, electromagnetic clutch 2, transmission shaft 3, input end shaft coupling 4, input end coupling shaft 5, frame 6, output terminal coupling shaft 7, output terminal shaft coupling 8, current vortex machine 9, pull pressure sensor 10, OSS 11, platform 12, guide rail 13, slide block 14, the arm of force 15, regulates bolt 16, stepper motor 17, gear case 18, leading screw 19, transfer input shaft speed sensors 20, variator web joint 21 and switch board 22; Like Fig. 1, Fig. 2, shown in Figure 3; Frame 6 is provided with variable-frequency motor 1, current vortex machine charger; The axle head of variable-frequency motor 1 is provided with an electromagnetic clutch 2; One end of electromagnetic clutch 2 is connected with input shaft shaft coupling 4 through transmission shaft 3; The other end of input shaft shaft coupling 4 is connected with input end coupling shaft 5, and transmission shaft 3 is provided with transfer input shaft speed sensors 20; Current vortex machine 9 armature spindles of current vortex machine charger are fixed on the platform 12 through bearing, bearing seat, support, and current vortex machine 9 armature spindles one end is connected with output terminal coupling shaft 7 through output terminal shaft coupling 8, and the other end is provided with OSS 11; Current vortex machine 9 stator both sides all are connected with the arm of force 15, and the arm of force 15 of a side is connected with pull pressure sensor 10, and the arm of force 15 of opposite side is provided with regulates bolt 16, regulate bolt 16 and regulate free clearance with protection pull pressure sensor 10; Platform 12 is arranged with two groups of slide blocks 14; Two groups of slide blocks 14 are arranged on two guide rails 13; Platform 12 is connected with leading screw 19, and leading screw 19 is connected with stepper motor 17 through gear case 18, and platform 12 can be done straight reciprocating motion on guide rail 13; Variator is connected with frame 6 through variator web joint 21, and switch board 22 is connected with variable-frequency motor 1 through cable; During test, variator is installed on the variator web joint 21, and input end coupling shaft 5 is connected with transmission input shaft, and output shaft is connected with output terminal coupling shaft 7.Variable-frequency motor 1 drives electromagnetic clutch 2, transmission shaft 3, input end shaft coupling 4, input end coupling shaft 5, transmission input shaft rotation, and current vortex machine 9 applies reverse resistance through output terminal shaft coupling 8, output terminal coupling shaft 7 to transmission output shaft.Electromagnetic clutch 2 is used to switch on or off transmission of power.Input end speed probe 11 is used to characterize the rotating speed of transmission input shaft 5, and the OSS 11 that is arranged on the current vortex machine 9 is used for characterizing transmission output speed and loads resistance with pull pressure sensor 10.Like Fig. 4, shown in Figure 5, the front of switch board 22 is provided with frequency converter 23, printer 24, industrial control computer 25, keyboard and mouse 26, display 32 and guidance panel, and industrial control computer 25 is connected with printer 24, keyboard and mouse 26, display 32; Guidance panel is provided with electrical source of power push button 27, electrical source of power X button 28, electric machine speed regulation knob 29, frequency converter and panel 30, power reversing switch 31, on-load voltage table 33, loading current table 34, power switch 35, electromagnetic switching clutch 36 is set, loads adjusting knob 37 and electromagnetic clutch control mode switch 38; The back of switch board 22 is provided with power supply 39, Loading Control unit 40, signals collecting terminal strip 41, data acquisition process card 42, tach signal processing unit 43, and power supply 39 is connected with Loading Control unit 40, signals collecting terminal strip 41, data acquisition process card 42, tach signal processing unit 43; Power switch 35 is connected with electromagnetic clutch 2, printer 24, industrial control computer 25, power supply 39 and Loading Control unit 40; Variable-frequency motor 1 is connected with frequency converter 23, and frequency converter 23 is provided with panel 30 with electrical source of power push button 27 with electrical source of power X button 28, electric machine speed regulation knob 29, frequency converter, power reversing switch 31 is connected; Electromagnetic clutch 2 is connected with electromagnetic switching clutch 36, electromagnetic clutch control mode switch 38; Loading Control unit 40 is connected with loading adjusting knob 37, on-load voltage table 33, loading current table 34, signals collecting terminal strip 41; Signals collecting terminal strip 41 is connected with data acquisition process card 42, and tach signal processing unit 43 is connected with industrial control computer 25 through data acquisition process card 42.Power switch 35 is the power supply switch of each hardware; For industrial control computer 25, printer 24, Loading Control unit 40, electromagnetic clutch 2 and power supply 39 provide power supply, power supply 39 provides low-tension supply for input/output terminal plate 41, data acquisition process card 42, tach signal processing unit 43.Variable-frequency motor 1 is driven by frequency converter 23; Driving power is by electrical source of power push button 28 and 27 controls of electrical source of power X button; Controlled variable is provided with panel 30 through frequency converter and sets; Electric machine speed regulation knob 29 is used for the adjusting control of motor speed, and power reversing switch 31 can be set the sense of rotation of motor.The connection of electromagnetic clutch 2 and cut-out also can adopt the line traffic control mode to control by electromagnetic switching clutch 36 controls, and the conversion of control mode is selected by electromagnetic clutch control mode switch 38.Loading Control unit 40 provides manually and automatic two kinds of control modes, and rotation loads the manual control that adjusting knob 37 can be realized loading current, and on-load voltage table 33, loading current table 34 show on-load voltage and current value simultaneously; The Loading Control electric current also can be given by the TT&C software that is built in industrial control computer; And export to the Loading Control module through data acquisition process card 42 and signals collecting terminal strip 41; Realize the control of loading current, on-load voltage table 33, loading current table 34 show on-load voltage and current value simultaneously.Signals collecting terminal strip 42 is responsible for the input and output of signal; Tach signal processing unit 43 is responsible for the conditioning of tach signal; Data acquisition process card 42 is responsible for the collection and the conversion process such as mould/number, D/A of data, and display 32 is responsible for the demonstration at each interface of TT&C software.
As shown in Figure 6; Sensor, signals collecting terminal strip 41, data acquisition process card 42 and industrial control computer 25 are formed data acquisition processing system; Being contained in input, output speed and the loading resistance signal that rotating speed and pull pressure sensor 10 on the test-bed will characterize tested variator takes out; Tach signal gets into industrial control computer 25 through the tach signal processing unit through the RS232 serial communication interface, and the signal that pulling force sensor 10 collects gets into data acquisition process card 42 through signals collecting terminal strip 41 and handles; The gearbox oil temperature signal of gathering from tested variator gets into data acquisition process card 42 through signals collecting terminal strip 41, and the vibration signal that vibration measurement instrument is gathered gets into industrial control computer 25 through the RS232 serial communication interface.Place the data acquisition process card 42 of industrial control computer 25 to convert various simulating signals and analog pulse signal into processor discernible digital signal.Industrial control computer 25 obtains the data of various parameters from data acquisition process card 42, and passes through its output control signal.The control of current vortex machine 9 Loading Control electric currents can be controlled by industrial control computer 25 automatically, also can manually be controlled by knob on the switch board 22 and switch.Loading Control voltage is given by TT&C software that is built in industrial control computer 25 or control knob, and exports to the Loading Control module through data collecting card and terminal strip, realizes the control of loading current.The control of frequency converter 23 and electromagnetic clutch 2 is by respective knob on the switch board or switch control.
Shown in Figure 7, TT&C software is made up of login module, main control module, detection control module, DBM, demarcating module, input/output module.Main control module is responsible for the coordination and the control of each intermodule; Login module is responsible for the input and the storage of user basic information, variator information; The digital signal that input/output module is responsible for transmitting with data acquisition hardware is carried out communication, and is with mode output data and the curve that shows or print, online or through LAN and other equipment and network cooperating work with external equipment; Detect control module and be responsible for the pilot project classification of transmission test and the programmed control of test process; DBM is responsible for the storage and uniform of various log-on messages, detection information, testing result and is called; Demarcating module is responsible for the periodic calibrating of equipment stand and parameters precision; The upgrading module provides upgrade interface, is convenient to the whole edition upgrading of software and database.
Claims (1)
1. manual gear of vehicle test unit; It comprises variable-frequency motor (1), electromagnetic clutch (2), transmission shaft (3), input end shaft coupling (4), input end coupling shaft (5), frame (6), output terminal coupling shaft (7), output terminal shaft coupling (8), current vortex machine (9), pull pressure sensor (10), OSS (11), platform (12), guide rail (13), slide block (14), the arm of force (15), regulates bolt (16), stepper motor (17), gear case (18), leading screw (19), transfer input shaft speed sensors (20), variator web joint (21) and switch board (22); It is characterized in that frame (6) is provided with variable-frequency motor (1), current vortex machine charger; The axle head of variable-frequency motor (1) is provided with an electromagnetic clutch (2); One end of electromagnetic clutch (2) is connected with input shaft shaft coupling (4) through transmission shaft (3); The other end of input shaft shaft coupling (4) is connected with input end coupling shaft (5), and transmission shaft (3) is provided with transfer input shaft speed sensors (20); Current vortex machine (9) armature spindle of current vortex machine charger is fixed on the platform (12) through bearing, bearing seat, support; Current vortex machine (9) armature spindle one end is connected with output terminal coupling shaft (7) through output terminal shaft coupling (8), and the other end is provided with OSS (11); Current vortex machine (9) stator both sides all are connected with the arm of force (15), and the arm of force of a side (15) is connected with pull pressure sensor (10), and the arm of force of opposite side (15) is provided with regulates bolt (16); Platform (12) is arranged with two groups of slide blocks (14); Two groups of slide blocks (14) are arranged on two guide rails (13); Platform (12) is connected with leading screw (19); Leading screw (19) is connected with stepper motor (17) through gear case (18), and variator is connected with frame (6) through variator web joint (21), and switch board (22) is connected with variable-frequency motor (1) through cable; The front of switch board (22) is provided with frequency converter (23), printer (24), industrial control computer (25), keyboard and mouse (26), display (32) and guidance panel, and industrial control computer (25) is connected with printer (24), keyboard and mouse (26), display (32); Guidance panel is provided with electrical source of power push button (27), electrical source of power X button (28), electric machine speed regulation knob (29), frequency converter and panel (30), power reversing switch (31), on-load voltage table (33), loading current table (34), power switch (35), electromagnetic switching clutch (36) is set, loads adjusting knob (37) and electromagnetic clutch control mode switch (38); The back of switch board (22) is provided with power supply (39), Loading Control unit (40), signals collecting terminal strip (41), data acquisition process card (42), tach signal processing unit (43), and power supply (39) is connected with Loading Control unit (40), signals collecting terminal strip (41), data acquisition process card (42), tach signal processing unit (43); Power switch (35) is connected with Loading Control unit (40) with electromagnetic clutch (2), printer (24), industrial control computer (25), power supply (39); Variable-frequency motor (1) is connected with frequency converter (23), and frequency converter (23) is provided with panel (30) with electrical source of power push button (27) with electrical source of power X button (28), electric machine speed regulation knob (29), frequency converter, power reversing switch (31) is connected; Electromagnetic clutch (2) is connected with electromagnetic switching clutch (36), electromagnetic clutch control mode switch (38); Loading adjusting knob (37) is connected with Loading Control unit (40), on-load voltage table (33), loading current table (34), signals collecting terminal strip (41); Signals collecting terminal strip (41) is connected with data acquisition process card (42), and tach signal processing unit (43) is connected with industrial control computer (25) through data acquisition process card (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120208573 CN202110062U (en) | 2011-06-20 | 2011-06-20 | Automobile manual transmission testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120208573 CN202110062U (en) | 2011-06-20 | 2011-06-20 | Automobile manual transmission testing device |
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| CN202110062U true CN202110062U (en) | 2012-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120208573 Expired - Fee Related CN202110062U (en) | 2011-06-20 | 2011-06-20 | Automobile manual transmission testing device |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103512747A (en) * | 2012-06-21 | 2014-01-15 | 中国人民解放军总后勤部油料研究所 | Synchronization performance evaluation device for manual transmission synchronizer |
| CN103808345A (en) * | 2012-11-15 | 2014-05-21 | 上海工程技术大学 | Mechanical device for signal collector of automobile sensor |
| CN104266838A (en) * | 2014-10-16 | 2015-01-07 | 江苏大学 | Electromagnetic slip clutch performance test bench |
| CN104374568A (en) * | 2013-08-13 | 2015-02-25 | 南车戚墅堰机车车辆工艺研究所有限公司 | Gearbox test bed |
| CN105446325A (en) * | 2015-12-29 | 2016-03-30 | 吉林东光集团有限公司 | Testing device for automatic control clutch system |
| CN105699895A (en) * | 2016-02-05 | 2016-06-22 | 重庆长安汽车股份有限公司 | Variable loading test system and method for monoblock type alternating current generator |
| CN107389345A (en) * | 2017-08-22 | 2017-11-24 | 宁夏大学 | A kind of automatic transmission test bench |
| CN111284727A (en) * | 2018-12-07 | 2020-06-16 | 中航贵州飞机有限责任公司 | Testing device for moment arm regulator of airplane control system |
| CN114001966A (en) * | 2021-11-11 | 2022-02-01 | 中国船舶重工集团公司第七0三研究所 | Test bed for starting and performance test of gas turbine casing |
| CN114018570A (en) * | 2021-10-27 | 2022-02-08 | 北京博科测试系统股份有限公司 | Gear box overturning test bench |
| CN118090198A (en) * | 2024-04-24 | 2024-05-28 | 哈尔滨船舶锅炉涡轮机研究所(中国船舶集团有限公司第七0三研究所) | Relative phase testing device and method for internal components of clutch |
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2011
- 2011-06-20 CN CN 201120208573 patent/CN202110062U/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103512747B (en) * | 2012-06-21 | 2015-09-30 | 中国人民解放军总后勤部油料研究所 | Synchronization performance evaluation device for manual transmission synchronizer |
| CN103512747A (en) * | 2012-06-21 | 2014-01-15 | 中国人民解放军总后勤部油料研究所 | Synchronization performance evaluation device for manual transmission synchronizer |
| CN103808345A (en) * | 2012-11-15 | 2014-05-21 | 上海工程技术大学 | Mechanical device for signal collector of automobile sensor |
| CN104374568A (en) * | 2013-08-13 | 2015-02-25 | 南车戚墅堰机车车辆工艺研究所有限公司 | Gearbox test bed |
| CN104266838A (en) * | 2014-10-16 | 2015-01-07 | 江苏大学 | Electromagnetic slip clutch performance test bench |
| CN105446325B (en) * | 2015-12-29 | 2017-09-29 | 吉林东光集团有限公司 | A kind of automatic control clutch opening machine system test device |
| CN105446325A (en) * | 2015-12-29 | 2016-03-30 | 吉林东光集团有限公司 | Testing device for automatic control clutch system |
| CN105699895A (en) * | 2016-02-05 | 2016-06-22 | 重庆长安汽车股份有限公司 | Variable loading test system and method for monoblock type alternating current generator |
| CN107389345A (en) * | 2017-08-22 | 2017-11-24 | 宁夏大学 | A kind of automatic transmission test bench |
| CN107389345B (en) * | 2017-08-22 | 2023-08-11 | 宁夏大学 | Automatic transmission test bed |
| CN111284727A (en) * | 2018-12-07 | 2020-06-16 | 中航贵州飞机有限责任公司 | Testing device for moment arm regulator of airplane control system |
| CN114018570A (en) * | 2021-10-27 | 2022-02-08 | 北京博科测试系统股份有限公司 | Gear box overturning test bench |
| CN114001966A (en) * | 2021-11-11 | 2022-02-01 | 中国船舶重工集团公司第七0三研究所 | Test bed for starting and performance test of gas turbine casing |
| CN114001966B (en) * | 2021-11-11 | 2023-12-08 | 中国船舶重工集团公司第七0三研究所 | Test bed for starting and performance test of fuel engine casing |
| CN118090198A (en) * | 2024-04-24 | 2024-05-28 | 哈尔滨船舶锅炉涡轮机研究所(中国船舶集团有限公司第七0三研究所) | Relative phase testing device and method for internal components of clutch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120111 Termination date: 20190620 |
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| CF01 | Termination of patent right due to non-payment of annual fee |