CN113203562B - Gear dynamic stress measuring system - Google Patents
Gear dynamic stress measuring system Download PDFInfo
- Publication number
- CN113203562B CN113203562B CN202110417269.XA CN202110417269A CN113203562B CN 113203562 B CN113203562 B CN 113203562B CN 202110417269 A CN202110417269 A CN 202110417269A CN 113203562 B CN113203562 B CN 113203562B
- Authority
- CN
- China
- Prior art keywords
- gear
- tested
- mounting
- loading
- transmission shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
- G01M13/02—Gearings; Transmission mechanisms
- G01M13/021—Gearings
-
- 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
- G01M13/02—Gearings; Transmission mechanisms
- G01M13/025—Test-benches with rotational drive means and loading means; Load or drive simulation
Abstract
The invention discloses a gear dynamic stress measuring system, which comprises: the gear to be tested and the accompanying testing gear set are respectively rotatably arranged, the gear to be tested is respectively meshed with the accompanying testing gear set, and the gear to be tested is connected with a dynamic stress measurer for measuring the working dynamic stress of the gear to be tested. The gear to be tested or the gear group to be tested is connected with a power loading device, and the power loading device is used for loading working power to the gear to be tested and the gear group to be tested so as to simulate the power loading condition of the gear to be tested and the gear group to be tested in the actual working process. The gear to be tested is further connected with a load loading device, and the load loading device is used for loading working loads to the gear to be tested and the accompanying gear set so as to simulate the load loading sum condition of the gear to be tested and the accompanying gear set in the actual working process.
Description
Technical Field
The invention relates to the technical field of gear dynamic stress measurement, in particular to a gear dynamic stress measurement system.
Background
The range of the working rotating speed of the aero-engine is wide, and the resonant rotating speed of the gear is difficult to completely avoid all the working rotating speeds of the engine in the design process. The gear modal analysis can calculate the resonance frequency and the resonance rotating speed of the gear, but the actual dynamic stress under the resonance rotating speed cannot be obtained, and whether the gear has the risk of resonance damage under the resonance rotating speed cannot be accurately judged. At the present stage, in order to verify whether the gear is damaged by resonance, a dynamic stress measurement test is performed on the gear in the whole engine test run process.
The action stress measurement test on the whole engine has the following defects:
1. at present, the dynamic stress of a gear is measured mainly by adopting a slip ring current-leading device, the device needs an engine to provide a certain installation space, the whole structure of the engine is compact, and the engine is often difficult to provide enough installation space for the current-leading device, so that the engine needs to be changed a lot to complete the dynamic stress measurement work of one gear, thus the parts of the engine need to be tested and modified, a long time period is needed to test one gear, and the engine is difficult to test and modify under more conditions, so that the gear needing to be subjected to dynamic stress measurement can not be subjected to dynamic stress measurement;
2. the dynamic stress measurement is carried out on the whole engine, the premise is that the structure of the engine parts is basically shaped, if the dynamic stress measurement test is used for measuring that a certain gear really has overlarge dynamic stress and has the risk of resonance damage, the gear is often required to be subjected to large structural adjustment, the engine design has integrity, the structural design change of one part is often realized by carrying out corresponding adjustment on a series of parts, and the development progress of the engine is greatly delayed.
Disclosure of Invention
The invention provides a gear dynamic stress measuring system, which aims to solve the technical problems that in the prior art, when the gear dynamic stress is measured on the whole engine of an engine, the structure of the engine needs to be modified, the detection period is long, and the development progress of the engine is delayed.
The technical scheme adopted by the invention is as follows:
a gear dynamic stress measurement system comprising: the gear to be tested and the accompanying testing gear set are respectively rotatably arranged and are respectively meshed, and the gear to be tested is connected with a dynamic stress measurer for measuring the working dynamic stress of the gear to be tested; the gear to be tested or the accompanying gear set is connected with a power loading device, and the power loading device is used for loading working power to the gear to be tested and the accompanying gear set so as to simulate the power loading condition of the gear to be tested and the accompanying gear set in the actual working process; the gear to be tested is further connected with a load loading device, and the load loading device is used for loading working loads to the gear to be tested and the accompanying gear set so as to simulate the load loading sum condition of the gear to be tested and the accompanying gear set in the actual working process.
Further, the load loading device comprises a first transmission mechanism for transmitting power and load, a loading wheel for loading the first transmission mechanism under the action of external force, and a gas supply device for loading the loading wheel with load; the first transmission mechanism is rotatably arranged on the casing assembly, the input end of the first transmission mechanism is connected with the gear to be tested, and the loading wheel is connected to the output end of the first transmission mechanism; the air supply device is positioned on one side of the loading wheel and used for performing pressure air injection on the loading wheel in the reverse direction of the rotation direction of the loading wheel in the process that the gear to be tested drives the first transmission mechanism and the loading wheel to synchronously rotate, so that the loading wheel performs load loading on the first transmission mechanism and further performs load loading on the gear to be tested, and the sum of loads borne by the gear to be tested in the actual working process is simulated.
Furthermore, the casing assembly comprises a first installation casing and a second installation casing which are sequentially arranged at intervals along the axial direction of the gear to be tested; the first transmission mechanism comprises a first transmission shaft group, a first mounting component arranged in the first mounting casing and a second mounting component arranged in the second mounting casing; the gear to be tested is rotatably arranged on the first mounting case through the first mounting component; the input end of the first transmission shaft group is connected with the gear to be tested, the output end of the first transmission shaft group is rotatably arranged on the second mounting case through the second mounting component, and the loading wheel is fixedly arranged on the excircle of the output end of the first transmission shaft group.
Furthermore, the first transmission shaft group comprises a first transmission shaft and a second transmission shaft which are sequentially arranged at intervals along the axial direction of the gear to be tested, and a first coupler used for connecting the first transmission shaft and the second transmission shaft; the first transmission shaft is rotatably arranged on the first mounting case, the input end of the first transmission shaft is detachably connected with the gear to be tested, and the output end of the first transmission shaft penetrates through the first mounting case and then is connected with the first coupler; the second transmission shaft is rotatably installed on the second installation case through the second installation assembly, the input end of the second transmission shaft is connected with the first coupler, and after the output end of the second transmission shaft penetrates out of the second installation case, the loading wheel is fixedly installed on the outer circle of the output end of the second transmission shaft.
Further, the gear to be tested comprises a first gear disc and a gear shaft connected with the first gear disc; the first mounting assembly comprises a first mounting bearing arranged on the excircle of the gear shaft and a first locking piece used for locking the first mounting bearing along the axial direction, and the gear to be tested is rotatably arranged on the first mounting case through the first mounting bearing; the gear dynamic stress measuring system further comprises a connecting shaft which is coaxially arranged with the gear shaft, and two ends of the connecting shaft are respectively connected with the gear shaft and the dynamic stress measurer.
Further, the test-accompanying gear set comprises at least one test-accompanying gear; the power loading device is connected with one of the test-accompanying gears and is used for loading working power to the test-accompanying gear and the gear to be tested.
Further, the power loading device comprises a second transmission mechanism for transmitting power, a driver for applying driving force to the second transmission mechanism, and a tester for testing the power and the rotating speed transmitted by the second transmission mechanism in real time; the second transmission mechanism is rotatably arranged on the casing assembly, the input end of the second transmission mechanism is connected with the driver, and the output end of the second transmission mechanism is connected with the test-accompanying gear; the tester is connected to the second transmission mechanism.
Furthermore, the casing assembly also comprises a third mounting casing which is arranged along the axial direction of the test gear; the second transmission mechanism comprises a second transmission shaft group and a third mounting component arranged in a third mounting casing; the second transmission shaft group is rotatably arranged on the third installation case through the third installation component, the test-accompanying gear is arranged on the excircle of the output end of the second transmission shaft group, the input end of the second transmission shaft group is connected with the driver, and the tester is connected in the second transmission shaft group.
Further, the second transmission shaft group comprises a transmission main shaft, a second coupler and a third coupler; the transmission main shaft is rotatably arranged on the third mounting case through a third mounting component, and the test-accompanying gear is arranged on the outer circle of the output end of the transmission main shaft; the second coupling and the third coupling are sequentially arranged at intervals along the axial direction of the transmission main shaft, and the tester is arranged between the second coupling and the third coupling; two ends of the second coupling are respectively connected with the input ends of the driver and the tester; and two ends of the third coupler are respectively connected with the output end of the tester and the input end of the transmission main shaft.
Furthermore, the third mounting assembly comprises a third mounting bearing and a fourth mounting bearing which are sequentially arranged on the excircle of the transmission main shaft at intervals, a sleeve clamped between the third mounting bearing and the fourth mounting bearing, and a third locking piece for axially locking the third mounting bearing and the fourth mounting bearing; the transmission main shaft is rotatably arranged on the third mounting case through a third mounting bearing and a fourth mounting bearing.
The invention has the following beneficial effects:
compared with the method for measuring the dynamic stress of the gear to be measured on the whole engine of the engine, the dynamic stress measuring system for the gear to be measured has the advantages that the dynamic stress of the gear to be measured is measured, and the engine is not required to provide an installation space for installing a dynamic stress measurer, so that the dynamic stress measuring work of one gear can be completed without changing the engine, and the parts of the engine are not required to be tested and modified, so that the dynamic stress measuring operation of the gear to be measured is simple, the required detection time is short, the labor intensity of workers is low, and the dynamic stress measuring system is suitable for measuring the dynamic stress of various gears of the engine; when the dynamic stress of the gear to be measured is measured by adopting the gear dynamic stress measuring system, the measurement can be completed before the structure of the parts of the engine is shaped, and when the dynamic stress measuring test detects that a certain gear really has the risk of resonance damage caused by overlarge dynamic stress, the gear with the risk only needs to be subjected to structural adjustment, and other parts of the engine do not need to be subjected to large structural adjustment, so that the adjustment operation is simple and easy, and the development progress of the engine can not be delayed.
In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a front view structural schematic diagram of a gear dynamic stress measuring system according to a preferred embodiment of the invention.
Description of the figures
10. A case assembly; 11. a first mounting case; 12. a second mounting case; 13. thirdly, mounting a case; 20. a gear to be tested; 30. a gear set is tried out; 40. a dynamic stress measurer; 50. a power loading device; 5111. a transmission main shaft; 5112. a second coupling; 5113. a third coupling; 5121. a third mounting bearing; 5122. a fourth mounting bearing; 5123. a sleeve; 5124. a third locking member; 5125. a first adjustment pad; 52. a driver; 53. a tester; 60. a load loading device; 6111. a first drive shaft; 6112. a second drive shaft; 6113. a first coupling; 6121. a first mounting bearing; 6122. a first locking member; 6123. a first gasket; 6124. a second adjustment pad; 6131. a second mounting bearing; 6132. a second locking member; 6133. a second gasket; 62. a loading wheel; 63. a gas supply device; 70. and (7) connecting the shafts.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the accompanying drawings, but the invention can be embodied in many different forms, which are defined and covered by the following description.
Referring to fig. 1, a preferred embodiment of the present invention provides a gear dynamic stress measurement system, including: the gear to be tested 20 and the testing gear set 30 which are meshed with the gear to be tested 20 in the actual working process are arranged on the casing assembly 10, the gear to be tested 20 and the testing gear set 30 are respectively arranged in a rotating mode, the gear to be tested 20 is meshed with the testing gear set 30, and the gear to be tested 20 is connected with a dynamic stress measurer 40 for measuring the working dynamic stress of the gear to be tested 20. The gear 20 to be tested or the gear set 30 to be tested is connected with a power loading device 50, and the power loading device 50 is used for loading working power to the gear 20 to be tested and the gear set 30 to be tested so as to simulate the power loading condition of the gear 20 to be tested and the gear set 30 to be tested in the actual working process. The gear 20 to be tested is further connected with a load loading device 60, and the load loading device 60 is used for loading working loads to the gear 20 to be tested and the accompanying gear set 30 so as to simulate the load loading sum condition in the actual working process of the gear 20 to be tested and the accompanying gear set 30.
When the dynamic stress measuring system of the gear is adopted to measure the dynamic stress of the gear 20 to be measured, firstly, the power loading device 50 is started, and the power loading device 50 loads working power to the gear 20 to be measured and the accompanying gear set 30 so as to simulate the power loading condition of the gear 20 to be measured and the accompanying gear set 30 in the actual working process; simultaneously starting the load loading device 60, wherein the load loading device 60 loads working loads to the gear 20 to be tested and the test-accompanying gear set 30 so as to simulate the load loading sum condition of the gear 20 to be tested and the test-accompanying gear set 30 in the actual working process; and simultaneously starting the stress measurer 40, and carrying out real-time measurement and recording on the dynamic stress of the gear 20 to be measured in the working process by the dynamic stress measurer 40.
Compared with the method for measuring the dynamic stress of the gear to be measured on the whole engine, the dynamic stress measuring system for the gear to be measured is adopted to measure the dynamic stress of the gear to be measured 20, and the engine is not required to provide an installation space for installing the dynamic stress measurer 40, so that the engine can complete the dynamic stress measuring work of one gear without being changed, and the testing and modification of parts of the engine are not required, therefore, the dynamic stress measuring operation of the gear to be measured is simple, the required detection time is short, the labor intensity of workers is low, and the dynamic stress measuring system is suitable for measuring the dynamic stress of various gears of the engine; when the dynamic stress of the gear 20 to be measured is measured by adopting the gear dynamic stress measuring system, the measurement can be completed before the structure of the parts of the engine is shaped, and when the dynamic stress measuring test detects that a certain gear really has the risk of resonance damage caused by overlarge dynamic stress, the gear with the risk only needs to be subjected to structural adjustment, and other parts of the engine do not need to be subjected to large structural adjustment, so that the adjustment operation is simple and easy, and the development progress of the engine can not be delayed.
Alternatively, as shown in fig. 1, the load applying device 60 includes a first transmission mechanism for transmitting power and load, an applying wheel 62 for applying load to the first transmission mechanism by an external force, and an air supply device 63 for applying load to the applying wheel 62. The first transmission mechanism is rotatably installed on the casing assembly 10, and the input end of the first transmission mechanism is connected to the gear 20 to be tested, and the loading wheel 62 is connected to the output end of the first transmission mechanism. The air supply device 63 is located at one side of the loading wheel 62, and is used for performing pressure air injection on the loading wheel 62 in the reverse direction of the rotation direction of the loading wheel 62 in the process that the gear 20 to be tested drives the first transmission mechanism and the loading wheel 62 to synchronously rotate, so as to load the first transmission mechanism through the loading wheel 62, and further load the gear 20 to be tested, so as to simulate the sum of loads borne by the gear 20 to be tested in the actual working process. In this alternative, the loading wheel 62 is an impeller; during operation, the air supply device 63 performs pressure air injection on the blade surface of the impeller in the direction opposite to the rotation direction of the impeller so as to load the first transmission mechanism through the impeller and further load the gear 20 to be tested, thereby simulating the sum of the loads borne by the gear 20 to be tested in the actual working process. In the alternative, the impeller and the air supply device 63 simulate the sum of the load borne by the gear 20 to be measured in the actual working process, the load loading structure is simple, the load is easy to load in place, and the controllability is strong, so that the structure of the gear dynamic stress measuring system can be effectively simplified, the load loading controllability is strong, the loading precision is high, and the precision of the dynamic stress measuring test is further improved.
In this alternative, as shown in fig. 1, the casing assembly 10 includes a first mounting casing 11 and a second mounting casing 12 that are sequentially arranged at intervals in the axial direction of the gear 20 to be tested. The first transmission mechanism comprises a first transmission shaft group, a first mounting component arranged in the first mounting case 11 and a second mounting component arranged in the second mounting case 12. The gear 20 to be tested is rotatably mounted on the first mounting case 11 through the first mounting assembly. The input end of the first transmission shaft set is connected to the gear 20 to be tested, the output end of the first transmission shaft set is rotatably mounted on the second mounting case 12 through the second mounting component, and the loading wheel 62 is fixedly mounted on the outer circle of the output end of the first transmission shaft set.
Further, as shown in fig. 1, the first transmission shaft group includes a first transmission shaft 6111 and a second transmission shaft 6112 which are sequentially arranged at intervals along the axial direction of the gear 20 to be tested, and a first coupler 6113 for connecting the first transmission shaft 6111 and the second transmission shaft 6112. The first transmission shaft 6111 is rotatably installed on the first installation casing 11, an input end of the first transmission shaft 6111 is detachably connected with the gear 20 to be tested, and an output end of the first transmission shaft 6111 penetrates through the first installation casing 11 and then is connected with the first coupler 6113. The second transmission shaft 6112 is rotatably mounted on the second mounting case 12 through the second mounting assembly, the input end of the second transmission shaft 6112 is connected to the first coupling 6113, and the loading wheel 62 is fixedly mounted on the outer circle of the output end of the second transmission shaft 6112 after the output end of the second transmission shaft 6112 penetrates out of the second mounting case 12. In a particular embodiment of this alternative, the first coupling 6113 is an abrasive disc coupling. Compared with the first transmission shaft group which is of an integral structure, the first transmission shaft group comprises the first transmission shaft 6111, the second transmission shaft 6112 and the first coupling 6113 used for connecting the first transmission shaft 6111 and the second transmission shaft 6112, and the first coupling 6113 is a grinding disc coupling, so that vibration generated when the impeller works can be effectively prevented from being transmitted to the gear 20 to be measured through the first transmission shaft group, the measurement precision of the dynamic stress of the gear 20 to be measured is improved, and meanwhile, the grinding disc coupling can also be used for aligning, so that the impeller and the first transmission mechanism are respectively and coaxially installed with the gear 20 to be measured.
Further, as shown in fig. 1, the gear 20 to be tested includes a first gear plate and a gear shaft connected to the first gear plate. The first mounting assembly comprises a first mounting bearing 6121 arranged on the outer circle of the gear shaft and a first locking member 6122 used for locking the first mounting bearing 6121 along the axial direction, and the gear 20 to be tested is rotatably arranged on the first mounting casing 11 through the first mounting bearing 6121. Further, as shown in fig. 1, the first mounting assembly further includes a first washer 6123 disposed between the end surface of the first mounting bearing 6121 and the end surface of the first mounting case 11. Similarly, the second mounting assembly includes a second mounting bearing 6131 mounted on the outer circle of the second transmission shaft 6112, a second locking member 6132 for locking the second mounting bearing 6131 in the axial direction, and a second washer 6133 mounted between the end face of the second mounting bearing 6131 and the end face of the second mounting case 12. In an embodiment of this alternative, the first locking member 6122 and the second locking member 6132 are both lock nuts. The gear dynamic stress measuring system further comprises a connecting shaft 70 coaxially arranged with the gear shaft, and two ends of the connecting shaft 70 are respectively connected with the gear shaft and the dynamic stress measurer 40.
Optionally, as shown in fig. 1, the companion gear set 30 includes at least one companion gear. The power loading device 50 is connected with one of the test-accompanying gears for loading working power to the test-accompanying gear and the gear 20 to be tested.
Alternatively, as shown in fig. 1, the power loading device 50 includes a second transmission mechanism for transmitting power, a driver 52 for applying driving force to the second transmission mechanism, and a tester 53 for testing the power and rotational speed transmitted by the second transmission mechanism in real time. The second transmission mechanism is rotatably installed on the casing assembly 10, and an input end of the second transmission mechanism is connected to the driver 52, and an output end of the second transmission mechanism is connected to the test-accompanying gear. The tester 53 is connected to the second transmission mechanism. In this alternative, the driver 52 is an electric motor and the measuring device 53 is a torque and rotational speed measuring device. During operation, the motor starts, and then drives the rotation of second drive mechanism, and second drive mechanism drives the gear of accompanying and testing who links to each other again and rotates, and the gear of accompanying and testing drives the gear 20 that awaits measuring rather than the meshing again and rotates, and the gear 20 that awaits measuring rotates and drives other gears of accompanying and testing rather than the meshing again and rotate to realize the loading of gear 20 that awaits measuring and gear train 30 both power.
In this alternative, as shown in fig. 1, the casing assembly 10 further includes a third mounting casing 13 arranged along the axial direction of the test gear. The second transmission mechanism includes a second transmission shaft set and a third mounting assembly installed in the third mounting case 13. The second transmission shaft set is rotatably installed on the third installation case 13 through the third installation component, the test-accompanying gear is installed on the excircle of the output end of the second transmission shaft set, the input end of the second transmission shaft set is connected with the driver 52, and the tester 53 is connected in the second transmission shaft set.
Further, as shown in fig. 1, the second transmission shaft group includes a transmission main shaft 5111, a second coupling 5112, and a third coupling 5113. The transmission main shaft 5111 is rotatably mounted on the third mounting case 13 through the third mounting assembly, and the test-accompanying gear is mounted on the excircle of the output end of the transmission main shaft 5111. The second coupler 5112 and the third coupler 5113 are sequentially arranged at intervals along the axial direction of the transmission spindle 5111, and the tester 53 is arranged between the second coupler 5112 and the third coupler 5113. Both ends of the second coupler 5112 are connected to the input ends of the driver 52 and the tester 53, respectively. Two ends of the third coupling 5113 are respectively connected to the output end of the tester 53 and the input end of the transmission main shaft 5111. In particular embodiments of this alternative, the second coupling 5112 and the third coupling 5113 are both abrasive disc couplings. Compared with the structure that the second transmission shaft group is of an integral structure, the structure of the invention can effectively prevent the vibration of the motor and the torque rotating speed measurer during working from being transmitted to the gear to be tested through the second transmission shaft group by enabling the second transmission shaft group to comprise the transmission main shaft 5111, the second coupler 5112 and the third coupler 5113, and enabling the second coupler 5112 and the third coupler 5113 to be both grinding disc couplers, thereby improving the stability and the precision of power transmission between the gear to be tested and the gear to be tested 20, and meanwhile, the grinding disc couplers can also be used for aligning, so that the output shaft of the motor, the tester and the transmission main shaft 5111 are respectively and coaxially installed with the gear to be tested.
Further, the third mounting assembly includes a third mounting bearing 5121 and a fourth mounting bearing 5122 which are sequentially mounted on the outer circle of the transmission main shaft 5111 at intervals, a sleeve 5123 which is clamped between the third mounting bearing 5121 and the fourth mounting bearing 5122, and a third locking member 5124 which is used for axially locking the third mounting bearing 5121 and the fourth mounting bearing 5122. The transmission main shaft 5111 is rotatably mounted on the third mounting case 13 through a third mounting bearing 5121 and a fourth mounting bearing 5122. In this alternative embodiment, the third locking member 5124 is a locking nut.
Preferably, the third mounting assembly further comprises a first adjusting pad 5125 mounted on the outer circle of the output end of the transmission main shaft 5111, and the first adjusting pad 5125 is positioned in the inner hole of the gear to be tested; similarly, the first mounting assembly further includes a second adjustment pad 6124 mounted on the outer circle of the gear shaft, and the second adjustment pad 6124 is located between the end face of the first mounting bearing 6121 and the step face of the gear shaft. The meshing of the gear 20 to be tested as a bevel gear and the gear to be tested is adjusted through the matching action of the first adjusting pad 5125 and the second adjusting pad 6124, so that the conical surfaces of the gear 20 to be tested and the gear to be tested are better meshed.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A gear dynamic stress measurement system, comprising:
the gear testing device comprises a casing assembly (10), wherein a gear to be tested (20) for measuring the dynamic stress and an accompanying gear set (30) which is meshed with the gear to be tested (20) in the actual working process are arranged on the casing assembly (10), the gear to be tested (20) and the accompanying gear set (30) are respectively arranged in a rotating mode, the gear to be tested (20) is meshed with the accompanying gear set (30) respectively, and the gear to be tested (20) is connected with a dynamic stress measurer (40) for measuring the working dynamic stress of the gear to be tested;
the gear (20) to be tested or the test-accompanying gear set (30) is connected with a power loading device (50), and the power loading device (50) is used for loading working power to the gear (20) to be tested and the test-accompanying gear set (30) so as to simulate the power loading condition of the gear (20) to be tested and the test-accompanying gear set (30) in the actual working process;
the gear (20) to be tested is further connected with a load loading device (60), and the load loading device (60) is used for loading working loads to the gear (20) to be tested and the test-accompanying gear set (30) so as to simulate the load loading sum condition in the actual working process of the gear (20) to be tested and the test-accompanying gear set (30);
the load loading device (60) comprises a first transmission mechanism for transmitting power and load, a loading wheel (62) for loading the first transmission mechanism under the action of external force, and a gas supply device (63) for loading the loading wheel (62) with load; the first transmission mechanism is rotatably arranged on the casing assembly (10), the input end of the first transmission mechanism is connected with the gear (20) to be tested, and the loading wheel (62) is connected to the output end of the first transmission mechanism; air feeder (63) are located one side of loading wheel (62), in order to be used for gear to be measured (20) drive first drive mechanism with loading wheel (62) synchronous revolution in-process, to the reversal of loading wheel (62) direction of rotation is right loading wheel (62) carry out pressure gas injection, with through loading wheel (62) are right first drive mechanism carries out the load loading, and then right gear to be measured (20) carry out the load loading, in order to simulate the sum of the load that receives in the gear to be measured (20) actual work process.
2. Gear dynamic stress measurement system according to claim 1,
the casing assembly (10) comprises a first installation casing (11) and a second installation casing (12) which are sequentially arranged at intervals along the axial direction of the gear (20) to be tested;
the first transmission mechanism comprises a first transmission shaft group, a first mounting component arranged in the first mounting casing (11) and a second mounting component arranged in the second mounting casing (12);
the gear (20) to be tested is rotatably arranged on the first mounting case (11) through the first mounting component;
the input end of the first transmission shaft group is connected with the gear (20) to be tested, the output end of the first transmission shaft group is rotatably arranged on the second mounting case (12) through the second mounting component, and the loading wheel (62) is fixedly arranged on the excircle of the output end of the first transmission shaft group.
3. Gear dynamic stress measurement system according to claim 2,
the first transmission shaft group comprises a first transmission shaft (6111) and a second transmission shaft (6112) which are sequentially arranged at intervals along the axial direction of the gear (20) to be tested, and a first coupler (6113) used for connecting the first transmission shaft (6111) and the second transmission shaft (6112);
the first transmission shaft (6111) is rotatably arranged on the first mounting case (11), the input end of the first transmission shaft (6111) is detachably connected with the gear to be tested (20), and the output end of the first transmission shaft (6111) penetrates through the first mounting case (11) and then is connected with the first coupler (6113);
the second transmission shaft (6112) is rotatably arranged on the second mounting case (12) through the second mounting assembly, the input end of the second transmission shaft (6112) is connected with the first coupler (6113), and after the output end of the second transmission shaft (6112) penetrates out of the second mounting case (12), the loading wheel (62) is fixedly arranged on the excircle of the output end of the second transmission shaft (6112).
4. Gear dynamic stress measurement system according to claim 2,
the gear (20) to be tested comprises a first gear disc and a gear shaft connected with the first gear disc;
the first mounting assembly comprises a first mounting bearing (6121) arranged on the outer circle of the gear shaft and a first locking piece (6122) used for locking the first mounting bearing (6121) along the axial direction, and the gear (20) to be tested is rotatably arranged on the first mounting casing (11) through the first mounting bearing (6121);
the gear dynamic stress measuring system further comprises a connecting shaft (70) which is coaxially arranged with the gear shaft, and two ends of the connecting shaft (70) are respectively connected with the gear shaft and the dynamic stress measurer (40).
5. Gear dynamic stress measurement system according to claim 1,
the try-assistant gear set (30) comprises at least one try-assistant gear;
the power loading device (50) is connected with one of the test assisting gears and used for loading working power to the test assisting gears and the gear (20) to be tested.
6. Gear dynamic stress measurement system according to claim 5,
the power loading device (50) comprises a second transmission mechanism for transmitting power, a driver (52) for applying driving force to the second transmission mechanism, and a tester (53) for testing the power and the rotating speed transmitted by the second transmission mechanism in real time;
the second transmission mechanism is rotatably arranged on the casing assembly (10), the input end of the second transmission mechanism is connected with the driver (52), and the output end of the second transmission mechanism is connected with the test-accompanying gear;
the tester (53) is connected to the second transmission mechanism.
7. Gear dynamic stress measurement system according to claim 6,
the casing assembly (10) further comprises a third mounting casing (13) arranged along the axial direction of the test-accompanying gear;
the second transmission mechanism comprises a second transmission shaft group and a third mounting component arranged in the third mounting casing (13);
the second transmission shaft group is rotatably arranged on the third mounting case (13) through the third mounting assembly, the test accompanying gear is arranged on the excircle of the output end of the second transmission shaft group, the input end of the second transmission shaft group is connected with the driver (52), and the tester (53) is connected in the second transmission shaft group.
8. Gear dynamic stress measurement system according to claim 7,
the second transmission shaft group comprises a transmission main shaft (5111), a second coupler (5112) and a third coupler (5113);
the transmission main shaft (5111) is rotatably arranged on the third mounting case (13) through the third mounting component, and the test accompanying gear is arranged on the excircle of the output end of the transmission main shaft (5111);
the second coupling (5112) and the third coupling (5113) are sequentially arranged at intervals along the axial direction of the transmission main shaft (5111), and the tester (53) is arranged between the second coupling (5112) and the third coupling (5113);
two ends of the second coupling (5112) are respectively connected with the input ends of the driver (52) and the tester (53);
and two ends of the third coupler (5113) are respectively connected with the output end of the tester (53) and the input end of the transmission main shaft (5111).
9. Gear dynamic stress measurement system according to claim 8,
the third mounting assembly comprises a third mounting bearing (5121) and a fourth mounting bearing (5122) which are sequentially mounted on the excircle of the transmission main shaft (5111) at intervals, a sleeve (5123) clamped between the third mounting bearing (5121) and the fourth mounting bearing (5122), and a third locking member (5124) for axially locking the third mounting bearing (5121) and the fourth mounting bearing (5122);
the transmission main shaft (5111) is rotatably arranged on the third mounting case (13) through the third mounting bearing (5121) and the fourth mounting bearing (5122).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110417269.XA CN113203562B (en) | 2021-04-19 | 2021-04-19 | Gear dynamic stress measuring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110417269.XA CN113203562B (en) | 2021-04-19 | 2021-04-19 | Gear dynamic stress measuring system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113203562A CN113203562A (en) | 2021-08-03 |
| CN113203562B true CN113203562B (en) | 2022-06-21 |
Family
ID=77027410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110417269.XA Active CN113203562B (en) | 2021-04-19 | 2021-04-19 | Gear dynamic stress measuring system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113203562B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114112381B (en) * | 2021-11-22 | 2023-07-07 | 中南大学 | Thin-wall bevel gear shaft assembly mode test device and method |
| CN117723284A (en) * | 2024-02-07 | 2024-03-19 | 中国航发四川燃气涡轮研究院 | Device for 360 DEG full circulation field measurement |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1036417C (en) * | 1988-01-29 | 1997-11-12 | 国家机械工业委员会成都工具研究所 | Method & implement of gearing error measuring by mating and separating |
| DE4325403C2 (en) * | 1993-07-29 | 1995-11-02 | Zf Luftfahrttechnik Gmbh | Tension test bench |
| JPH07239287A (en) * | 1994-02-28 | 1995-09-12 | Nkk Corp | Method and apparatus for estimating life of gear |
| CN105628378B (en) * | 2016-01-18 | 2018-06-05 | 中国航空动力机械研究所 | Gear dynamic stress rest equipment |
| CN107621366B (en) * | 2017-08-15 | 2019-02-12 | 中南大学 | A kind of bevel gear mechanical close formula testing stand |
| CN109668728A (en) * | 2018-11-30 | 2019-04-23 | 重庆大学 | A kind of GTF gear Duct-Burning Turbofan gear drive experimental provision and its test method |
| CN109724796A (en) * | 2018-12-11 | 2019-05-07 | 中国北方车辆研究所 | The continuously adjustable spiral bevel gear Power close pilot system of apex to crown |
-
2021
- 2021-04-19 CN CN202110417269.XA patent/CN113203562B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN113203562A (en) | 2021-08-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113203562B (en) | Gear dynamic stress measuring system | |
| CN101865778B (en) | Torsional vibration excitation device and test bed of vehicle drive system | |
| CN102507205B (en) | Method for checking vibration fault of fan blade of aerial engine | |
| CN104390778B (en) | Eccentric gear type torsional activator and eccentric gear type torsional vibration excitation system | |
| CN110064909B (en) | Positioning tool, positioning test device and method for measuring bevel gear circumferential backlash | |
| CN109029983B (en) | Durability test bed for mechanical closed power bevel gear | |
| CN105628378A (en) | Gear dynamic stress test device | |
| CN109556878B (en) | Synchronous measurement device and method for pneumatic performance and efficiency of electric propeller system | |
| CN111458016A (en) | Method for rapidly detecting vibration of drive axle assembly | |
| CN110793771A (en) | Test bench of simulation helicopter main reducing gear trouble | |
| CN111175048A (en) | Engine performance benchmarking test system for automatic transmission vehicle and use method | |
| CN101598615B (en) | Power testing device of small outer rotor generator | |
| CN108871769B (en) | Fixed involute spline pair fretting wear test device | |
| CN109668730A (en) | Life test tooling and life testing method for harmonic wave speed reducing machine | |
| CN114275187A (en) | Vibration-static force-excitation three-comprehensive test device | |
| CN205941010U (en) | New energy automobile power assembly testboard | |
| KR102223101B1 (en) | Test machine for integrated drive axle | |
| CN201417288Y (en) | Power test device of small outer-rotor generator | |
| CN116413025A (en) | Mechanical closed power flow type vibration test device for gear rotor system | |
| CN108871770B (en) | Floating involute spline pair fretting wear test device | |
| CN110441054B (en) | Method for detecting misalignment fault state of rotating mechanical shaft system in coupling connection state | |
| CN113049248A (en) | Impact endurance test system and method for new energy reducer | |
| KR20010017228A (en) | Tracking System for Automated Indestruction Inspection at Turbine Blade Root | |
| CN110082100B (en) | Uniform load test verification method for wind turbine yaw driving system | |
| CN219675472U (en) | Automobile transmission shaft vibration abnormal sound detection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |