CN112747099A - Military engineering machinery integrated transmission device - Google Patents
Military engineering machinery integrated transmission device Download PDFInfo
- Publication number
- CN112747099A CN112747099A CN202110025380.4A CN202110025380A CN112747099A CN 112747099 A CN112747099 A CN 112747099A CN 202110025380 A CN202110025380 A CN 202110025380A CN 112747099 A CN112747099 A CN 112747099A
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- China
- Prior art keywords
- transmission
- transmission device
- assembly
- speed change
- engineering machinery
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H47/00—Combinations of mechanical gearing with fluid clutches or fluid gearing
- F16H47/06—Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the hydrokinetic type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H41/00—Rotary fluid gearing of the hydrokinetic type
- F16H41/24—Details
- F16H41/30—Details relating to venting, lubrication, cooling, circulation of the cooling medium
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0402—Cleaning of lubricants, e.g. filters or magnets
- F16H57/0404—Lubricant filters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0434—Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps ; Pressure control
- F16H57/0435—Pressure control for supplying lubricant; Circuits or valves therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/0021—Generation or control of line pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/26—Generation or transmission of movements for final actuating mechanisms
- F16H61/28—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
- F16H61/30—Hydraulic or pneumatic motors or related fluid control means therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/0021—Generation or control of line pressure
- F16H2061/0037—Generation or control of line pressure characterised by controlled fluid supply to lubrication circuits of the gearing
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
Abstract
The invention discloses a military engineering machinery integrated transmission device, which comprises a transmission device box body, a front transmission mechanism and a speed change mechanism, wherein the front transmission mechanism is fixedly arranged at the front end of the transmission device box body, the speed change mechanism is arranged in the transmission device box, and an output shaft of the front transmission mechanism is meshed and connected with the speed change mechanism. The invention adopts the hydrostatic drive combined with the mechanical transmission technology to realize the power output less than 20r/min, realizes the flow balance and the transmission lubrication distribution of the complex hydraulic system with multiple pump sources, reasonably matches the oil supply quantity of each pump source, achieves the reasonable matching of each hydraulic system and the lubrication flow system under the limited oil quantity, and realizes the effect of low-speed stable output and high controllability of small-radius steering.
Description
Technical Field
The invention relates to a transmission device, in particular to a military engineering machinery integrated transmission device, and belongs to the technical field of military engineering.
Background
After more than 60 years of development, military engineering machinery in China forms a relatively perfect structural system, has great development and great improvement on the number and quality of models, forms dozens of kinds of engineering machinery equipment mainly comprising field engineering machinery, construction machinery and guarantee machinery, and is basically complete in variety and specification.
However, the military engineering machinery in China has a large gap from the military engineering machinery level in developed countries due to multiple aspects such as maneuvering capability, quick response capability, automation degree, information processing capability, protection capability, reliability and the like.
At present, the military engineering machinery in China has unsatisfactory performance on low-rotating-speed stable output and small-radius steering performance, the stable output under the low-rotating-speed working condition is difficult to realize, especially the controllability, reliability, stability and the like of the small-radius steering performance are difficult to achieve expectations, the technical problems provide great challenges for the power performance and reliability of the military engineering machinery, and the technical problems need to be solved urgently.
Disclosure of Invention
The invention aims to provide a military engineering machinery integrated transmission device to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the transmission device comprises a transmission device box body, a front transmission mechanism and a speed change mechanism, wherein the front transmission mechanism is fixedly arranged at the front end of the transmission device box body, the speed change mechanism is arranged in the transmission device box body, and an output shaft of the front transmission mechanism is meshed with the speed change mechanism.
As a preferred technical scheme of the present invention, the front transmission mechanism includes a driving bevel gear assembly, a rear transmission driven gear, a butterfly gasket, a hydraulic torque converter assembly, a connecting gear sleeve, an input shaft, and a dynamic auxiliary input gear, the driving bevel gear assembly and the rear transmission driven gear are sleeved and connected with a rotating shaft of a driving motor, the butterfly gasket is fixedly sleeved at a joint of the rear transmission driven gear and the rotating shaft, the hydraulic torque converter assembly is engaged with the rear transmission driven gear, the output end of the hydraulic torque converter assembly is rotatably connected with the input shaft, the input shaft is sleeved with the dynamic auxiliary input gear, and the dynamic auxiliary input gear is connected with an external transmission member.
As a preferable technical scheme, the speed change mechanism comprises a coarse filtration assembly, a one-way valve, a first O-shaped sealing ring, an end cover, a limiting sleeve, a first shaft assembly, a second shaft assembly, a third shaft assembly, a second O-shaped sealing ring, a C1 insertion tube and a C2 insertion tube, wherein the speed change mechanism is internally and rotatably connected with the first shaft assembly, the second shaft assembly and the third shaft assembly, the end head of the first shaft assembly is fixedly provided with the coarse filtration assembly, the end head of the coarse filtration assembly is fixedly connected with the end head of the input shaft, the joint of the coarse filtration assembly is fixedly provided with the one-way valve, the top end of the one-way valve is fixedly provided with the end cover, the joint of the coarse filtration assembly is sleeved with the first O-shaped sealing ring, the bottom of the speed change mechanism is distributed and connected with the C1 insertion tube and the C2 insertion tube, and the joint of the C1 insertion tube and the C2 insertion.
As a preferable technical scheme of the invention, a power input gear sleeve is fixedly arranged at the center of the front face of the transmission device box body, and a safety valve is fixedly arranged at the top of the front face of the transmission device box body, wherein the power input gear sleeve is meshed with a power output gear fixedly arranged on an output shaft of a driving motor and is connected with the transmission device box body.
As a preferred technical scheme, a gear shifting valve is fixedly mounted at the corner of one side of the top end of the transmission device box body, a hanging ring is fixedly mounted in the middle of one side of the top end of the transmission device box body, the hanging ring is connected with an external hanging hook in an inserting mode, and an oil dipstick is fixedly mounted at the corner of the other side of one side of the top end of the transmission device box body.
As a preferable technical scheme of the invention, one side of the transmission device box body is fixedly provided with a left bus bar, the bottom of the left bus bar is provided with a water inlet of the heater, and the other side of the transmission device box body is fixedly provided with a right bus bar.
As a preferred technical scheme of the invention, the back surface of the transmission device box body is fixedly provided with the electric control box, and each electric appliance is electrically connected with the external power supply through the electric control box.
Compared with the prior art, the invention has the beneficial effects that:
the military engineering machinery integrated transmission device provided by the invention adopts a hydrostatic drive combined with a mechanical transmission technology to realize power output less than 20r/min, realizes flow balance and transmission lubrication distribution of a complex hydraulic system with multiple pump sources, reasonably matches the oil supply quantity of each pump source, achieves reasonable matching of each hydraulic system and a hydraulic system with limited oil quantity and lubrication flow system, and realizes the effects of low-speed stable output and high controllability of small-radius steering.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a front transmission mechanism according to the present invention;
fig. 3 is a schematic structural diagram of the speed change mechanism of the present invention.
In the figure: 1. a transmission case; 2. a front drive mechanism; 201. a drive bevel gear assembly; 202. a rear drive driven gear; 203. butterfly gaskets; 204. a torque converter assembly; 205. connecting a gear sleeve; 206. An input shaft; 207. a movable auxiliary input gear; 3. a speed change mechanism; 301. a coarse filtration assembly; 302. a one-way valve; 303. a first O-ring seal; 304. an end cap; 305. a limiting sleeve; 306. a shaft assembly; 307. A two-axis assembly; 308. a triaxial assembly; 309. a second O-ring seal; 3010. a C1 cannula; 3011. a C2 cannula; 4. a shift valve; 5. a hoisting ring; 6. a dipstick; 7. a power input gear sleeve; 8. a warmer water inlet; 9. a left busbar; 10. a safety valve.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution of an integrated transmission device for military engineering machinery:
according to the figures 1-3, the transmission device comprises a transmission device box body 1, a front transmission mechanism 2 and a speed change mechanism 3, wherein the front transmission mechanism 2 is fixedly arranged at the front end of the transmission device box body 18, the speed change mechanism 3 is arranged in the transmission device box body 1, and an output shaft of the front transmission mechanism 2 is meshed with the speed change mechanism 3.
According to fig. 2, the front transmission mechanism 2 includes a driving bevel gear assembly 201, a rear transmission driven gear 202, a butterfly-shaped gasket 203, a torque converter assembly 204, a connecting gear sleeve 205, an input shaft 206 and a dynamic auxiliary input gear 207, the driving bevel gear assembly 201 and the rear transmission driven gear 202 are sleeved and connected with a rotating shaft of a driving motor, the butterfly-shaped gasket 203 is fixedly sleeved at the connecting position of the rear transmission driven gear 202 and the rotating shaft, the torque converter assembly 204 is engaged with the rear transmission driven gear 202, the input shaft 206 is rotatably connected with the output end of the torque converter assembly 204, the dynamic auxiliary input gear 207 is sleeved on the input shaft 206, and the dynamic auxiliary input gear 207 is connected with an external transmission element.
As shown in fig. 3, the speed change mechanism 3 includes a coarse filter assembly 301, a check valve 302, a first O-ring 303, an end cap 304, a stop collar 305, a first shaft assembly 306, a second shaft assembly 307, a third shaft assembly 308, a second O-ring 309, a C1 insertion tube 3010 and a C2 insertion tube 3011, the speed change mechanism 3 is rotatably connected with the first shaft assembly 306, the second shaft assembly 307 and the third shaft assembly 308, the end of the first shaft assembly 306 is fixedly installed with the coarse filter assembly 301, the end of the coarse filter assembly 301 is fixedly connected with the end of the input shaft 206, the connection of the coarse filter assembly 301 is fixedly installed with the check valve 302, an end cover 304 is fixedly installed at the top end of the one-way valve 302, a first O-shaped sealing ring 303 is sleeved at the joint of the coarse filtering assembly 301, a C1 insertion tube 3010 and a C2 insertion tube 3011 are distributed and connected at the bottom of the speed change mechanism 3, and a second O-shaped sealing ring 309 is sleeved at the joint of the C1 insertion tube 3010 and the C2 insertion tube 3011.
According to the drawings of fig. 1 and 3, a power input gear sleeve 7 is fixedly arranged at the center of the front surface of a transmission device box body 1, a power output gear fixedly arranged on the power input gear sleeve 7 and a driving motor output shaft is meshed with the top of the front surface of the transmission device box body 1, a safety valve 10 is fixedly arranged at the corner of one side of the top end of the transmission device box body 1, a gear shifting valve 4 is fixedly arranged at the corner of one side of the top end of the transmission device box body 1, a hanging ring 5 is fixedly arranged at the middle of one side of the top end of the transmission device box body 1, the hanging ring 5 is connected with an external hanging hook in an inserting way, an oil dipstick 6, and the bottom of the left busbar 9 is provided with a heater water inlet 8, the other side of the transmission device box body 1 is fixedly provided with a right busbar, the back of the transmission device box body 1 is fixedly provided with an electric control box, and each electric appliance is electrically connected with an external power supply through the electric control box.
When in specific use, the military engineering machinery integrated transmission device of the invention obtains the automatic stepless torque-changing and speed-changing characteristics after the front transmission mechanism 3 is connected with the engine and the speed-changing mechanism 2 in series, enlarges the working range of the engine, meanwhile, the rotating speed range of the engine which can work stably is greatly improved, after power is transmitted into the fixed shaft speed change mechanism, the change of the transmission ratio is realized by a three-shaft fixed shaft gear and a wet multi-plate clutch, the power output by the speed change mechanism 2 and the power output by hydraulic pump motors at two sides are converged in a planetary speed change mechanism, and the stepless change of the steering radius is realized by a hydraulic mechanism, the power density is further improved, high integration of high-power flow is realized, flow balance and lubrication distribution of multiple hydraulic systems in a wide rotating speed range are realized, and the effects of low-speed stable output and small-radius steering height control are realized.
In the description of the present invention, it is to be understood that the indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings and are only for convenience in describing the present invention and simplifying the description, but are not intended to indicate or imply that the indicated devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present invention.
In the present invention, unless otherwise explicitly specified or limited, for example, it may be fixedly attached, detachably attached, or integrated; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. Military engineering machinery integration transmission, including transmission box (1), preceding drive mechanism (2) and speed change mechanism (3), front end fixed of transmission box (18) is equipped with preceding drive mechanism (2), the internally mounted of transmission box (1) has speed change mechanism (3), the output shaft and the speed change mechanism (3) meshing of preceding drive mechanism (2) are connected.
2. The integrated transmission of military engineering machinery according to claim 1, wherein: the front transmission mechanism comprises a driving bevel gear assembly (201), a rear transmission driven gear (202), a butterfly gasket (203), a hydraulic torque converter assembly (204), a connecting gear sleeve (205), an input shaft (206) and a movable auxiliary input gear (207), wherein the driving bevel gear assembly (201) and the rear transmission driven gear (202) are sleeved and connected with a rotating shaft of a driving motor, the butterfly gasket (203) is fixedly sleeved at the connecting part of the rear transmission driven gear (202) and the rotating shaft, the hydraulic torque converter assembly (204) is meshed with the rear transmission driven gear (202), the output end of the hydraulic torque converter assembly (204) is rotatably connected with the input shaft (206), the movable auxiliary input gear (207) is sleeved on the input shaft (206), and the movable auxiliary input gear (207) is connected with an external transmission member.
3. The integrated transmission of military engineering machinery according to claim 1, wherein: speed change mechanism includes coarse filter assembly (301), check valve (302), first O shape sealing washer (303), end cover (304), stop collar (305), an axle assembly (306), two axle assemblies (307), triaxial assembly (308), second O shape sealing washer (309), C1 intubate and C2 intubate, speed change mechanism's inside rotation is connected with an axle assembly (306), two axle assemblies (307) and triaxial assembly (308), the end fixed mounting of an axle assembly (306) has coarse filter assembly (301), the end of coarse filter assembly (301) is located the fixed connection with the end of input shaft (206), the junction fixed mounting of coarse filter assembly (301) has check valve (302), just the top fixed mounting of check valve (302) has end cover (304), the junction cover of coarse filter assembly (301) is equipped with first O shape sealing washer (303), the bottom of the speed change mechanism is connected with a C1 insertion tube and a C2 insertion tube in a distributed mode, and a second O-shaped sealing ring (309) is sleeved at the joint of the C1 insertion tube and the C2 insertion tube.
4. The integrated transmission of military engineering machinery according to claim 1, wherein: the transmission device is characterized in that a power input gear sleeve is fixedly arranged at the center of the front face of the transmission device box body, and a safety valve (10) is fixedly arranged at the top of the front face of the transmission device box body and is in meshed connection with a power output gear fixedly arranged on an output shaft of a driving motor.
5. The integrated transmission of military engineering machinery according to claim 1, wherein: the utility model discloses a gearbox, including transmission box top, ring, external lifting hook, the corner fixed mounting of transmission box top one side has the gear shift valve, the middle part fixed mounting of transmission box top one side has rings, rings alternate with external lifting hook and are connected, the another side corner fixed mounting of transmission box top one side has the dipstick.
6. The integrated transmission of military engineering machinery according to claim 1, wherein: the transmission device box body is characterized in that a left bus bar is fixedly arranged on one side of the transmission device box body, a heater water inlet is formed in the bottom of the left bus bar, and a right bus bar is fixedly arranged on the other side of the transmission device box body.
7. The integrated transmission of military engineering machinery according to claim 1, wherein: the back of the transmission device box body is fixedly provided with an electric control box, and each electric appliance is electrically connected with an external power supply through the electric control box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110025380.4A CN112747099A (en) | 2021-01-08 | 2021-01-08 | Military engineering machinery integrated transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110025380.4A CN112747099A (en) | 2021-01-08 | 2021-01-08 | Military engineering machinery integrated transmission device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112747099A true CN112747099A (en) | 2021-05-04 |
Family
ID=75650409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110025380.4A Pending CN112747099A (en) | 2021-01-08 | 2021-01-08 | Military engineering machinery integrated transmission device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112747099A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201521617U (en) * | 2009-11-09 | 2010-07-07 | 中国船舶重工集团公司第七一一研究所 | Hydraulic torque converter with improved structure |
| CN201547211U (en) * | 2008-11-13 | 2010-08-11 | 杭州前进齿轮箱集团股份有限公司 | Hydraulic speed changer |
| CN102808904A (en) * | 2011-05-31 | 2012-12-05 | 北京理工大学 | Double-wet type dead axle and planet compound type mechanical speed change mechanism used for high-speed vehicle |
| CN206571931U (en) * | 2017-02-16 | 2017-10-20 | 陈云珠 | A kind of Light-duty Vehicle Hydrodynamic transmission |
| US20180170426A1 (en) * | 2016-12-16 | 2018-06-21 | Allison Transmission, Inc. | Direct drive pivot and pivot lockup of a transmission system and method thereof |
| CN108437783A (en) * | 2018-03-21 | 2018-08-24 | 北京理工大学 | A kind of width transmission range electric drive combined type comprehensive actuator |
| CN108626353A (en) * | 2017-03-20 | 2018-10-09 | 迪尔公司 | The working truck speed changer that manifold is installed on axis disconnects device control |
| CN112096835A (en) * | 2020-10-10 | 2020-12-18 | 江苏赫夫特齿轮制造有限公司 | Lubricating structure of internal bearing of gear shifting gear box |
-
2021
- 2021-01-08 CN CN202110025380.4A patent/CN112747099A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201547211U (en) * | 2008-11-13 | 2010-08-11 | 杭州前进齿轮箱集团股份有限公司 | Hydraulic speed changer |
| CN201521617U (en) * | 2009-11-09 | 2010-07-07 | 中国船舶重工集团公司第七一一研究所 | Hydraulic torque converter with improved structure |
| CN102808904A (en) * | 2011-05-31 | 2012-12-05 | 北京理工大学 | Double-wet type dead axle and planet compound type mechanical speed change mechanism used for high-speed vehicle |
| US20180170426A1 (en) * | 2016-12-16 | 2018-06-21 | Allison Transmission, Inc. | Direct drive pivot and pivot lockup of a transmission system and method thereof |
| CN206571931U (en) * | 2017-02-16 | 2017-10-20 | 陈云珠 | A kind of Light-duty Vehicle Hydrodynamic transmission |
| CN108626353A (en) * | 2017-03-20 | 2018-10-09 | 迪尔公司 | The working truck speed changer that manifold is installed on axis disconnects device control |
| CN108437783A (en) * | 2018-03-21 | 2018-08-24 | 北京理工大学 | A kind of width transmission range electric drive combined type comprehensive actuator |
| CN112096835A (en) * | 2020-10-10 | 2020-12-18 | 江苏赫夫特齿轮制造有限公司 | Lubricating structure of internal bearing of gear shifting gear box |
Non-Patent Citations (1)
| Title |
|---|
| 马洪文，马彪: "综合传动装置变速机构振动频率与敏感度分析", 《机械强度》 * |
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Application publication date: 20210504 |
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