A high-speed planetary gear train test device and system

Abstract

The application discloses a high-speed planetary row testing device, which comprises a fixed shell and a single planetary row; the fixed shell is arranged outside a gear ring of the single planetary row, a sun gear of the single planetary row is sealingly connected with one end of the fixed shell through a sun gear shaft and a bearing III, and an annular frame of the single planetary row is sealingly connected with the other end of the fixed shell through an annular frame shaft and a bearing III; an oil hole II of a sun gear assembly, an annular groove I, a through hole II of a flow distribution ring, an annular groove II, a through hole I on the annular frame and an oil passage II of a planetary wheel shaft are sequentially communicated, so that lubricating oil in a cavity is guided into a needle bearing, and the needle bearing is lubricated and cooled; the annular frame is made of titanium alloy material; the application has the characteristics of light weight, and is provided with corresponding lubricating oil passages, so that the stability under high-speed operation can be ensured, and the testing can be smoothly carried out.

Description

Technical Field

[0001] This invention belongs to the field of transmission mechanism testing technology, specifically relating to a high-speed planetary gear set test device and system. Background Technology

[0002] Transmission devices are gradually developing towards higher power density, higher performance, and higher reliability. Increasing the speed of the drive motor is an effective measure to improve the power density of the transmission device, and the high-speed development of drive motors will inevitably lead to the high-speed development of the planetary gearboxes connected to them.

[0003] However, the high-speed operation of existing planetary gearboxes leads to a sharp increase in the centrifugal force of the planetary gearbox frame, and the gyroscopic effect causes the planetary gearbox frame to vibrate during overcharging. In actual testing, under no-load conditions, when the input speed increased from 5000 r / min (corresponding to a frame pin hole linear velocity of 63 m / s) to 6000 r / min (corresponding to a frame pin hole linear velocity of 76 m / s), the vibration velocity of the planetary gearbox frame suddenly increased from 20 mm / s to 60 mm / s, and the test was terminated due to the vibration. Therefore, existing planetary gearboxes can no longer meet the requirements for accuracy and accuracy retention, stiffness and strength performance, vibration and noise performance under high-speed operation.

[0004] The main reasons for this are twofold: first, the existing steel-structured planetary gearboxes are heavy, resulting in large centrifugal forces and vibration amplitudes; second, the poor lubrication and heat dissipation of existing steel-structured planetary gearboxes lead to low stability. Therefore, it is necessary to design a new high-speed planetary gearbox testing device and system for load testing. Summary of the Invention

[0005] In view of this, the present invention provides a high-speed planetary gear set test device and system. The high-speed planetary gear set test device is lightweight and is equipped with corresponding lubrication oil circuits, which can ensure stability under high-speed operation, thereby enabling the test to be carried out smoothly.

[0006] This invention is achieved through the following technical solution: A high-speed planetary gear set test apparatus includes a fixed housing and a single planetary gear set; The fixed housing is located outside the gear ring of a single planetary set. The sun gear of the single planetary set is sealed to one end of the fixed housing through the sun gear shaft and bearing III. The planet carrier of the single planetary set is sealed to the other end of the fixed housing through the planet carrier shaft and bearing III. The fixed housing is provided with an oil inlet and an oil outlet, both of which are connected to the cavity inside the fixed housing. A distribution ring is coaxially mounted on a single planetary gear set; the distribution ring is provided with a radial through hole II; The sun gear is provided with an oil hole II. One end of the oil hole II is connected to the cavity, and the other end is connected to one end of the through hole II of the distribution ring through the coaxial annular groove I. Each planetary gear in a single planetary gear set is connected to the planetary gear shaft via a needle roller bearing; the planet carrier of a single planetary gear set has the same number of through holes I as the planetary gears; each planetary gear shaft is provided with an oil passage II; one end of each through hole I is connected to the other end of through hole II via a coaxial annular groove II, and the other end of through hole I is connected to one end of oil passage II in a corresponding manner, and the other end of oil passage II is connected to the needle rollers of the corresponding needle roller bearing in a corresponding manner, thereby achieving lubrication of the needle roller bearing.

[0007] Furthermore, the planetary gear shaft is provided with an oil hole I, a shaft hole, and a radial oil slinger hole passing through the shaft hole; the oil hole I, the shaft hole, and the oil slinger hole are connected in sequence to form the oil passage II.

[0008] Furthermore, the distribution ring is an annular structure with grooves II along its inner circumference, the grooves II being the annular grooves I, and one or more through holes II radially disposed on the inner bottom surface of the grooves II; the end of the oil hole II is connected to the opening of the grooves II.

[0009] Furthermore, the planetary carrier is provided with an annular groove I, which is the annular groove II. The distribution ring is disposed on the inner circumferential surface of the annular groove I, and the through hole II of the distribution ring is connected to the opening of the groove I.

[0010] Furthermore, the fixed housing includes a mounting frame, a left housing, and a right housing. The left housing is fixedly mounted on the mounting frame, and the right housing is fixedly connected to the left housing. Let the side where the left housing is located be the left side and the side where the right housing is located be the right side; the oil inlet is set on the outer circumference of the left housing, and the left housing is provided with a first oil passage along the radial direction. The first oil passage is connected to the oil inlet, and the side wall of the first oil passage is provided with a through hole II, which is connected to the cavity inside the fixed housing. A second oil passage is provided on the right housing. One end of the second oil passage is connected to the oil inlet hole, and the other end extends sequentially along the axial and radial directions of the fixed housing before connecting to the cavity inside the fixed housing.

[0011] Furthermore, the planetary carrier and the fixed housing are rotatably connected by bearing II, and bearing II is located on the right side of the cavity; the second oil passage is used to introduce lubricating oil from the oil inlet hole into the right side of the cavity; to achieve targeted lubrication of bearing II; A branch is provided in the second oil circuit. One end of the branch is connected to the second oil circuit, and the other end extends sequentially along the axial and radial directions of the fixed housing before connecting to the cavity, which is used for targeted lubrication of bearing III.

[0012] Furthermore, the planetary gear shaft is positioned on the planet carrier by locating pins, and wear-resistant pads are respectively provided between the two ends of the planetary gear shaft and the planet carrier.

[0013] A high-speed planetary gearbox test system, based on a high-speed planetary gearbox test device, the test system comprising: a high-speed planetary gearbox test device, a power system, a control and data processing system, and a data acquisition system; The sun gear shaft and planet carrier shaft of the high-speed planetary gear test device are respectively connected to the power system, which is used to drive the sun gear shaft or planet carrier shaft to rotate. The data acquisition system is used to collect data during the test and transmit it to the control and data processing system. The data during the test includes the speed data of the power system, the torque data of the sun gear shaft I, the torque data of the planetary carrier shaft II, the oil temperature data of the lubricating oil, the pressure data of the lubricating oil, the flow rate data of the lubricating oil, and the vibration data of the high-speed planetary gear set test device. The control and data processing system is used to control and adjust test parameters and receive data collected by the data acquisition system for real-time monitoring of the test status and subsequent analysis of the planetary gear set's performance. The control and data processing system adjusts the corresponding test parameters by controlling the start and stop of the power system, the speed of the power system, and the load of the planetary gear set test device.

[0014] Furthermore, a high-speed planetary gearbox test system also includes a safety protection system for protecting the safety of the test device. The safety protection system includes a safety monitoring system, a safety alarm system, and relays. The safety monitoring system is used to monitor the operation of the test equipment. In case of abnormality, the safety alarm system can issue an alarm to remind the test personnel to take emergency measures. The relay is used to quickly cut off the power supply to the test equipment.

[0015] Furthermore, the power system includes two motors and two drive shafts. The output shaft of one motor is connected to the sun gear shaft via a coupling and a drive shaft; the output shaft of the other motor is connected to the planet carrier shaft via a coupling and another drive shaft; when one motor is rotating, the other motor can act as a load. In addition, each motor transmits its own motor signal to the control and data processing system, which receives and processes the motor signal. The control and data processing system includes a computer, a display, a hydraulic loading unit, and a controller. The computer has embedded control software to control the controller to control the motor and the hydraulic loading unit, thereby controlling the start, stop, and speed of the motor, as well as the load on the high-speed planetary gear test device. The display shows the operating status of the test device so that the operator can understand the status of the test device. The data acquisition system includes: sensor components and a data acquisition card; the sensor components include two torque sensors, two speed sensors, a pressure sensor, temperature sensor I, a flow sensor, temperature sensor II, and a vibration sensor; Two torque sensors are respectively installed on the two drive shafts, and two speed sensors are respectively installed on the two drive shafts to obtain the speed data of the corresponding power system and the torque data I of the sun gear shaft and the torque data II of the planet carrier shaft. Pressure sensor, temperature sensor I, flow sensor, temperature sensor II, and vibration sensor are all installed on the high-speed planetary gear set test apparatus. The pressure sensor is used to measure the pressure of the lubricating oil in the oil inlet to obtain lubricating oil pressure data; the flow sensor is used to measure the flow rate of the lubricating oil in the oil inlet to obtain lubricating oil flow rate data; temperature sensor I is used to measure the temperature of the lubricating oil on the left side of the cavity inside the fixed housing to obtain oil temperature data I; temperature sensor II is used to measure the temperature of the lubricating oil on the right side of the cavity inside the fixed housing to obtain oil temperature data II; the vibration sensor is used to collect vibration data of the high-speed planetary gear set test apparatus. The data acquisition card collects speed data, torque data, pressure data, flow data, oil temperature data I, oil temperature data II, and vibration data, and then transmits them to the computer. The computer in the control and data processing system also has embedded data processing software to receive and process the data collected by the data acquisition card.

[0016] Beneficial effects: (1) In this invention, on the one hand, the planetary carrier is made of titanium alloy, which achieves the purpose of lightweighting the planetary gearbox and thus enables the planetary gearbox to operate at high speed. On the other hand, the oil hole II of the sun gear assembly, the annular groove I, the through hole II of the distribution ring, the annular groove II, the through hole I on the planetary carrier, and the oil passage II of the planetary gear shaft are connected in sequence to introduce the lubricating oil in the cavity into the needle roller bearing, and to lubricate and cool the needle roller bearing in a targeted manner, so as to further ensure the stability of the planetary gearbox test device under high-speed operation and thus carry out the test smoothly.

[0017] Furthermore, in this invention, the annular groove I is used for buffering and storing oil, thereby ensuring that when the oil hole II of the sun gear assembly and the through hole II of the distribution ring are not coaxially opposite, the lubricating oil can still enter the through hole II of the distribution ring; the annular groove II is also used for buffering and storing oil, thereby ensuring that when the oil passage II of the planet gear assembly and the through hole II of the distribution ring are not coaxially opposite, the lubricating oil can still enter the through hole I of the planet carrier.

[0018] (2) In this invention, the oil hole I, the shaft hole and the oil slinger hole are connected in sequence to form the oil passage II; the oil hole I and the shaft hole are connected in sequence to introduce the lubricating oil in the cavity into the shaft hole of the planetary gear shaft; the two ends of the oil slinger hole are connected to the needle roller bearing. Under the action of centrifugal force, the lubricating oil in the shaft hole enters the needle roller bearing through the oil slinger hole to lubricate and cool the needle roller bearing, so as to achieve targeted lubrication of the needle roller bearing, so as to ensure the stability of the planetary gear test device under high-speed operation, and thus carry out the test smoothly.

[0019] (3) The present invention has a first oil passage on the left side and a second oil passage on the right side, which respectively lubricate the bearings on the left and right sides to further ensure the high-speed operation of the planetary gear set as a whole.

[0020] (4) The second oil circuit of the present invention is also provided with a branch circuit. The second oil circuit realizes targeted lubrication of bearing II, and the branch circuit realizes targeted lubrication of bearing III, thereby ensuring the stability of the planetary gear test device under high-speed operation and thus successfully carrying out the test.

[0021] (5) Wear-resistant pads are provided at both ends of the planetary gear shaft and between the planet carrier to ensure that the working life of the planetary gear is extended.

[0022] (6) By setting up a control and data processing system, a high-speed planetary gear set test device, and a data acquisition system, the present invention can systematically control, acquire and process the data during the test process, which facilitates comprehensive testing and evaluation of the performance of the high-speed planetary gear set test device.

[0023] (7) The safety monitoring system of the present invention is used to monitor the operation of the test device. When an abnormality occurs, the safety alarm system can issue an alarm to remind the test personnel to take emergency measures. The relay is used to quickly cut off the power supply of the test device to prevent accidents from happening and to ensure the safety of high-speed testing. Attached Figure Description

[0024] Figure 1 This is a structural diagram of the high-speed planetary gear setter test device of the present invention; Figure 2 This is a schematic diagram of the distribution ring; Figure 3 yes Figure 2 B-B sectional view; Figure 4 yes Figure 1 A magnified view of a portion of the image; Figure 5 is a schematic diagram of the high-speed planetary sorting test system of the present invention.

[0025] Among them, 1-connector, 2-left housing, 3-right housing, 4-oil plug I, 5-gear ring, 6-wear-resistant pad, 7-planetary gear, 8-locating pin, 9-planetary gear shaft, 91-oil hole I, 92-shaft hole, 93-oil slinger hole, 10-oil plug II, 11-planet carrier, 111-groove I, 112-through hole I, 12-sun gear, 13-bearing I, 14-oil plug III, 15-bearing II, 16-shield, 17-bolt I, 18-shaft 19-Sealing cover, 20-Planetary carrier shaft, 21-Lip seal, 22-Oil plug IV, 23-Bolt II, 24-Fixing bracket, 25-Bolt III, 26-Gear ring connecting plate, 27-Needle roller bearing, 28-Distributor ring, 281-Through hole II, 282-Groove II, 29-Oil outlet, 30-Sun gear shaft, 31-Through hole III, 32-Oil hole II, 33-First oil passage, 34-Second oil passage, 35-Oil inlet, 36-Branch passage. Detailed Implementation

[0026] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] Example 1: This embodiment provides a high-speed planetary gear set test apparatus; see appendix. Figure 1 It includes a fixed outer shell and a single planetary array; A single planetary gear set includes two or more planetary gears 7, planetary gear shafts 9, a planetary carrier 11, a sun gear 12, a planetary carrier shaft 20, and a sun gear shaft 30; in a specific embodiment, the number of planetary gears 7 is four. The ring gear 5 is coaxially distributed with the sun gear 12, and two or more planetary gears 7 are evenly distributed along the circumference of the sun gear 12, with each planetary gear 7 simultaneously meshing with both the ring gear 5 and the sun gear 12; the planetary carrier 11 is made of titanium alloy.

[0028] The fixed housing is located outside the gear ring of the individual planetary set. The sun gear 12 of the individual planetary set is sealed to one end of the fixed housing through the sun gear shaft 30 and bearing Ⅲ 18. The planet carrier 11 of the individual planetary set is sealed to the other end of the fixed housing through the planet carrier shaft 20 and bearing Ⅲ 18. The fixed housing is provided with an oil inlet 35 and an oil outlet 29, both of which are connected to the cavity inside the fixed housing. A distribution ring 28 is coaxially mounted on a single planetary gear set; the distribution ring 28 is provided with a radial through hole Ⅱ281; The sun gear assembly is provided with an oil hole II 32. One end of the oil hole II 32 is connected to the cavity, and the other end is connected to one end of the through hole II 281 of the distribution ring 28 through a coaxial annular groove I. Each planet gear 7 of a single planetary gear set is connected to the planet gear shaft 9 through a needle roller bearing 27. The planet carrier of a single planetary gear set is provided with the same number of through holes I 112 as the planet gear 7. Each planet gear shaft 9 is provided with an oil passage II. One end of each through hole I 112 is connected to the other end of the through hole II 281 through a coaxial annular groove II. The other end of the through hole I 112 is connected to one end of the oil passage II in a corresponding manner. The other end of the oil passage II is connected to the needle rollers of the corresponding needle roller bearing 27 in a corresponding manner, thereby achieving lubrication of the needle roller bearing 27. In this embodiment, on the one hand, the planetary carrier 11 is made of titanium alloy, achieving the goal of lightweighting the planetary gearbox and thus enabling high-speed operation of the planetary gearbox. On the other hand, the oil hole II 32 of the sun gear assembly, the annular groove I, the through hole II 281 of the distribution ring 28, the annular groove II, the through hole I 112 of the planetary carrier 11, and the oil passage II of the planetary gear shaft 9 are sequentially connected, guiding the lubricating oil in the cavity into the needle roller bearing 27 for targeted lubrication and cooling, thereby further ensuring the high-speed operation of the planetary gear 7. The annular groove I is used for buffering and storing oil, ensuring that when the oil hole II 32 of the sun gear assembly and the through hole II 281 of the distribution ring 28 are not coaxially opposite, the lubricating oil can still enter the through hole II 281 of the distribution ring 28; the annular groove II is also used for buffering and storing oil, ensuring that when the oil passage II of the planetary gear assembly and the through hole II 281 of the distribution ring 28 are not coaxially opposite, the lubricating oil can still enter the through hole I 112 of the planetary carrier 11.

[0029] For details, please see the appendix. Figure 1 The planetary carrier 11 is provided with a through hole I 112, and the planetary gear shaft 9 is provided with an oil hole I 91, a shaft hole 92, and a radial oil slinger hole 93 passing through the shaft hole 92. The through hole I 112, the oil hole I 91, the shaft hole 92, and the oil slinger hole 93 are connected in sequence to form the oil passage II. The through hole I 112, the oil hole I 91, and the shaft hole 92 are connected in sequence to guide the lubricating oil in the cavity into the shaft hole 92 of the planetary gear shaft 9. The two ends of the oil slinger hole 93 are connected to the needle roller bearing 27. Under the action of centrifugal force, the lubricating oil in the shaft hole 92 enters the needle roller bearing 27 through the oil slinger hole 93 to lubricate and cool the needle roller bearing 27.

[0030] In one specific embodiment, see Appendix Figure 2 and 3The distribution ring 28 is an annular structure with grooves II 282 along its inner circumference. Groove II 282 is an annular groove I, and one or more through holes II 281 are radially arranged on the inner bottom surface of groove II 282. The end of oil hole II 32 is connected to the opening of groove II 282. Alternatively, an annular groove I can be provided at the connection between oil hole II 32 of the sun gear assembly and through hole II 281 of distribution ring 28.

[0031] In one specific embodiment, see Appendix Figure 4 The planetary carrier 11 is provided with an annular groove I111, which is the annular groove II. The distribution ring 28 is disposed on the inner circumferential surface of the annular groove I111, and the through hole II281 of the distribution ring 28 communicates with the opening of the groove I111. Alternatively, the annular groove II can also be provided at the connection between the through hole II281 of the distribution ring 28 and the planetary carrier 11.

[0032] In one specific embodiment, the fixed outer shell includes a fixing frame 24, a left shell 2 and a right shell 3. The left shell 2 is fixedly mounted on the fixing frame, and the right shell 3 is fixedly connected to the left shell 2. In the specific embodiment, the left shell 2 is fastened to the fixing frame by a number of bolts III 25; the right shell 3 is fixedly connected to the left shell 2 by a number of bolts II 23.

[0033] See appendix Figure 1 Let the side where the left housing 2 is located be the left side and the side where the right housing 3 is located be the right side; the oil inlet 35 is set on the outer circumference of the left housing 2, and the left housing 2 is provided with a first oil passage 33 along the radial direction. The first oil passage 33 is connected to the oil inlet 35. The side wall of the first oil passage 33 is provided with a through hole Ⅲ31, which is connected to the cavity inside the fixed housing, so as to introduce lubricating oil from the oil inlet 35 to the left side of the cavity to lubricate the bearing on the left side.

[0034] The planetary carrier 11 is rotatably connected to the fixed housing via bearing II 15, and bearing II 15 is located on the right side of the cavity; a second oil passage 34 is provided on the right housing 3, one end of the second oil passage 34 is connected to the oil inlet 35, and the other end extends sequentially along the axial and radial directions of the right housing 3 before connecting to the cavity inside the fixed housing, for introducing lubricating oil from the oil inlet 35 to the right side of the cavity; thus achieving targeted lubrication of bearing II 15; The second oil passage 34 is also provided with a branch passage 36. One end of the branch passage 36 is connected to the second oil passage 34, and the other end extends along the axial and radial directions of the fixed housing in sequence, and then connects to the cavity for targeted lubrication of bearing Ⅲ18. In this embodiment, by setting the first oil passage 33 on the left, the second oil passage 34 on the right, and the branch passage 36, the bearings on the left and right sides are lubricated in a targeted manner to further ensure the high-speed operation of the planetary gear set as a whole.

[0035] In one specific embodiment, see Appendix Figure 4 The planetary gear shaft 9 is limited on the planet carrier 7 by the positioning pin 8. Wear-resistant pads 6 are respectively provided between the two ends of the planetary gear shaft 9 and the planet carrier 7 to position the axial movement of the planetary gear 7 and ensure the extension of the working life of the planetary gear 7. In one specific embodiment, a high-speed planetary gear test device further includes a sealing assembly, which includes two sealing caps 19, two lip seals 21, and several oil plugs; both the sealing caps 19 and the lip seals 21 are annular structures. Both the left housing 2 and the right housing 3 are provided with a central hole, and the sun gear shaft 30 is rotatably engaged with the central hole of the left housing 2. A sealing cover 19 is coaxially sleeved on the sun gear shaft 30, located on the left side of the left housing 2 and fixedly connected to the left housing, specifically through a gasket 16 and bolt I 17. Another sealing cover 19 is coaxially sleeved on the planetary carrier shaft 20, located on the right side of the right housing 3 and fixedly connected to the right housing 3, specifically through a gasket 16 and bolt I 17. Two lip seals 21 are correspondingly arranged on the inner circumferential surfaces of the two sealing covers 19 to prevent lubricating oil from overflowing. The sealing covers 19 also have vent holes to facilitate the discharge of oil and gas generated during the rotation of the planetary gear set.

[0036] The gasket 16 is of model number DIN9025-8VS, and the bolt I17 is of model number M8X15. The gasket 16 is used to prevent the bolt I17 from loosening.

[0037] Several oil plugs include oil plug I4, oil plug II10, oil plug III14 and oil plug IV22. To facilitate the machining of the first and second oil passages, openings are machined on the fixed housing. Oil plugs I4, III14 and IV22 are used to seal the openings on the fixed housing. Oil plug II10 is set at the end of the shaft hole 92 of the planetary gear shaft 9 to seal the end of the shaft hole 92.

[0038] In one specific embodiment, the planet carrier 11 is connected to the planet carrier shaft 20 via a spline, and the planet carrier 11 is rotatably connected to the sun gear shaft 10 via bearing I 13; the end of the planet carrier shaft 20 located in the cavity of the fixed housing is rotatably connected to the sun gear shaft 10 via bearing III 18; wherein, bearing II 15 is a 61826 deep groove ball bearing; bearing I 13 is a 61822 deep groove ball bearing; and bearing III 18 is a 61812 deep groove ball bearing.

[0039] In one specific embodiment, the sun gear assembly is integrally formed from the sun gear shaft 30 and the sun gear 12 to ensure the strength of the sun gear during rotation.

[0040] In one specific embodiment, both the oil inlet 35 and the oil outlet 29 are provided with connectors 1 for connecting to the oil pump, which facilitates the supply and return of lubricating oil. In one specific embodiment, the gear ring 5 is fixedly connected to the left housing 2 via the gear ring connecting plate 16. Specifically, the right side of the left housing 2 is provided with a coaxial annular boss, and the outer circumferential surface of the annular boss is provided with a keyway, which is connected to the gear ring connecting plate 26 via an external spline to restrict the rotational movement of the gear ring connecting plate 26. The gear ring 5 is connected to the gear ring connecting plate 26 via a retaining ring, thereby realizing the rotational limitation of the gear ring 5.

[0041] The left housing 2 is made of forged steel and machined after forging. The planetary gear 7 is forged from alloy steel and subjected to quenching and tempering treatment to obtain sufficient toughness and wear resistance.

[0042] Example 2: This embodiment provides a high-speed planetary transmission test system; see appendix. Figure 5 It includes: a high-speed planetary gear set test device, a power system, a control and data processing system, and a data acquisition system; The sun gear shaft 30 and the planet carrier shaft 20 of the high-speed planetary gear test device are respectively connected to the power system, and the power system is used to drive the sun gear shaft 30 or the planet carrier shaft 20 to rotate. The data acquisition system is used to collect data during the test and transmit it to the control and data processing system. The data during the test includes the rotational speed data of the power system, the torque data I of the sun gear shaft 30, the torque data II of the planetary carrier shaft 20, the oil temperature data of the lubricating oil, the pressure data of the lubricating oil, the flow rate data of the lubricating oil, and the vibration data of the high-speed planetary gear set test device. The control and data processing system is used to control and adjust test parameters and receive data collected by the data acquisition system for real-time monitoring of the test status and subsequent analysis of the planetary gear set's performance. The control and data processing system adjusts the corresponding test parameters by controlling the start and stop of the power system, the speed of the power system, and the load of the planetary gear set test device.

[0043] In this embodiment, by setting up a control and data processing system, a high-speed planetary gear set test device, and a data acquisition system, the data during the test process can be systematically controlled, acquired, and processed, which facilitates a comprehensive test and evaluation of the performance of the high-speed planetary gear set test device.

[0044] The power system includes two motors and two drive shafts. The output shaft of one motor is connected to the sun gear shaft 30 via a coupling and another drive shaft; the output shaft of the other motor is connected to the planetary carrier shaft 20 via a coupling and another drive shaft. When one motor rotates, the other motor can act as a load. When the sun gear shaft 30 is used as an input shaft, the planetary carrier shaft 20 undergoes deceleration; when the planetary carrier shaft 2 is used as an input shaft, it undergoes acceleration. The rated input speed of both motors is 25,000 rpm, and the rated power is 150 kW. The motors can be replaced with hydraulic motors or internal combustion engines, etc. Furthermore, each motor transmits its own motor signal to the control and data processing system, which receives and processes the motor signals.

[0045] The control and data processing system includes a computer, a display, a hydraulic loading unit, and a controller. The computer has embedded control software to control the controller to control the motor and the hydraulic loading unit, thereby controlling the start, stop, and speed of the motor, as well as the load on the high-speed planetary gear set test device. The display shows the operating status of the test device so that the operator can understand the status of the test device.

[0046] The data acquisition system includes: sensor components and a data acquisition card; the sensor components include two torque sensors, two speed sensors, a pressure sensor, temperature sensor I, a flow sensor, temperature sensor II, and a vibration sensor; Two torque sensors are respectively installed on the two drive shafts, and two speed sensors are respectively installed on the two drive shafts to obtain the speed data of the corresponding power system and the torque data I of the sun gear shaft 30 and the torque data II of the planet carrier shaft 20. Pressure sensor, temperature sensor I, flow sensor, temperature sensor II, and vibration sensor are all installed on the high-speed planetary gear set test device. The pressure sensor is used to measure the pressure of the lubricating oil in the oil inlet 35 to obtain the pressure data of the lubricating oil. The flow sensor is used to measure the flow rate of the lubricating oil in the oil inlet 35 to obtain the flow rate data of the lubricating oil. Temperature sensor I is used to measure the temperature of the lubricating oil on the left side of the cavity inside the fixed housing to obtain oil temperature data I. Temperature sensor II is used to measure the temperature of the lubricating oil on the right side of the cavity inside the fixed housing to obtain oil temperature data II. The vibration sensor is used to collect the vibration data of the high-speed planetary gear set test device. The data acquisition card collects speed data, torque data, pressure data, flow data, oil temperature data I, oil temperature data II, and vibration data, and then transmits them to the computer. The computer in the control and data processing system also has embedded data processing software to receive and process the data collected by the data acquisition card.

[0047] A high-speed planetary gearbox test system also includes a safety protection system for protecting the safety of the test device. The safety protection system includes a safety monitoring system, a safety alarm system, and relays. The safety monitoring system is used to monitor the operation of the test equipment. In case of abnormality, the safety alarm system can issue an alarm to remind the test personnel to take emergency measures. The relay is used to quickly cut off the power supply to the test equipment to prevent accidents from happening.

[0048] In summary, the above are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A high-speed planetary setter test apparatus, characterized in that, Includes a fixed outer shell and a single planetary array; The fixed housing is located outside the gear ring of a single planetary set. The sun gear of the single planetary set is sealed to one end of the fixed housing through the sun gear shaft and bearing III. The planet carrier of the single planetary set is sealed to the other end of the fixed housing through the planet carrier shaft and bearing III. The fixed housing is provided with an oil inlet and an oil outlet, both of which are connected to the cavity inside the fixed housing. A distribution ring is coaxially mounted on a single planetary gear set; the distribution ring is provided with a radial through hole II; The sun gear is provided with an oil hole II. One end of the oil hole II is connected to the cavity, and the other end is connected to one end of the through hole II of the distribution ring through the coaxial annular groove I. Each planetary gear in a single planetary set is connected to the planetary gear shaft via a needle roller bearing; the planet carrier of a single planetary set has the same number of through holes I as the planetary gears; each planetary gear shaft is provided with an oil passage II; one end of each through hole I is connected to the other end of through hole II via a coaxial annular groove II, and the other end of through hole I is connected to one end of oil passage II in a corresponding manner, and the other end of oil passage II is connected to the needle rollers of the corresponding needle roller bearing in a corresponding manner, thereby achieving lubrication of the needle roller bearing; The planet carrier of a single planetary array is made of titanium alloy.

2. The high-speed planetary setter test apparatus as described in claim 1, characterized in that, The planetary gear shaft is provided with an oil hole I, a shaft hole, and a radial oil slinger hole passing through the shaft hole; the oil hole I, the shaft hole, and the oil slinger hole are connected in sequence to form the oil passage II.

3. The high-speed planetary setter test apparatus as described in claim 1, characterized in that, The distribution ring is an annular structure with grooves II along its inner circumference. The grooves II are the annular grooves I, and one or more through holes II are radially arranged on the inner bottom surface of the grooves II. The end of oil hole II aligns with the opening of groove II.

4. The high-speed planetary setter test apparatus as described in claim 1, characterized in that, The planetary carrier is provided with an annular groove I, which is the annular groove II. The distribution ring is disposed on the inner circumferential surface of the annular groove I, and the through hole II of the distribution ring is connected to the opening of the groove I.

5. A high-speed planetary setter test apparatus as described in any one of claims 1-4, characterized in that, The fixed housing includes a fixed frame, a left housing and a right housing. The left housing is fixedly mounted on the fixed frame, and the right housing is fixedly connected to the left housing. Let the side where the left housing is located be the left side and the side where the right housing is located be the right side; the oil inlet is set on the outer circumference of the left housing, and the left housing is provided with a first oil passage along the radial direction. The first oil passage is connected to the oil inlet, and the side wall of the first oil passage is provided with a through hole II, which is connected to the cavity inside the fixed housing. A second oil passage is provided on the right housing. One end of the second oil passage is connected to the oil inlet hole, and the other end extends sequentially along the axial and radial directions of the fixed housing before connecting to the cavity inside the fixed housing.

6. The high-speed planetary setter test apparatus as described in claim 5, characterized in that, The planetary carrier and the fixed housing are rotatably connected by bearing II, and bearing II is located on the right side of the cavity; the second oil passage is used to introduce lubricating oil from the oil inlet hole into the right side of the cavity; To achieve targeted lubrication of bearing II; A branch is provided in the second oil circuit. One end of the branch is connected to the second oil circuit, and the other end extends sequentially along the axial and radial directions of the fixed housing before connecting to the cavity, which is used for targeted lubrication of bearing III.

7. A high-speed planetary setter test apparatus as described in any one of claims 1-4, characterized in that, The planetary gear shaft is fixed on the planet carrier by locating pins, and wear-resistant pads are respectively provided between the two ends of the planetary gear shaft and the planet carrier.

8. A high-speed planetary gearbox testing system, based on the high-speed planetary gearbox testing device according to any one of claims 1-7, characterized in that, The test system includes: a high-speed planetary gear set test device, a power system, a control and data processing system, and a data acquisition system; The sun gear shaft and planet carrier shaft of the high-speed planetary gear test device are respectively connected to the power system, which is used to drive the sun gear shaft or planet carrier shaft to rotate. The data acquisition system is used to collect data during the test and transmit it to the control and data processing system. The data during the test includes the speed data of the power system, the torque data of the sun gear shaft I, the torque data of the planetary carrier shaft II, the oil temperature data of the lubricating oil, the pressure data of the lubricating oil, the flow rate data of the lubricating oil, and the vibration data of the high-speed planetary gear set test device. The control and data processing system is used to control and adjust test parameters and receive data collected by the data acquisition system for real-time monitoring of the test status and subsequent analysis of the planetary gear set's performance. The control and data processing system adjusts the corresponding test parameters by controlling the start and stop of the power system, the speed of the power system, and the load of the planetary gear set test device.

9. The high-speed planetary transmission test system as described in claim 8, characterized in that, It also includes a safety protection system to protect the safety of the test equipment. The safety protection system includes a safety monitoring system, a safety alarm system, and relays. The safety monitoring system is used to monitor the operation of the test equipment. In case of abnormality, the safety alarm system will issue an alarm to remind the test personnel to take emergency measures. The relay is used to quickly cut off the power supply to the test equipment.

10. A high-speed planetary transmission test system as described in claim 8 or 9, characterized in that, The power system includes two motors and two drive shafts. The output shaft of one motor is connected to the sun gear shaft via a coupling and a drive shaft; the output shaft of the other motor is connected to the planet carrier shaft via a coupling and another drive shaft; when one motor rotates, the other motor acts as a load. In addition, each motor transmits its own motor signal to the control and data processing system, which receives and processes the motor signal. The control and data processing system includes a computer, a display, a hydraulic loading unit, and a controller. The computer has embedded control software to control the controller to control the motor and the hydraulic loading unit, thereby controlling the start and stop of the motor and its speed, as well as the load on the high-speed planetary gear test device. The display is used to show the operating status of the test equipment so that operators can understand the status of the test equipment; The data acquisition system includes: sensor components and a data acquisition card; the sensor components include two torque sensors, two speed sensors, a pressure sensor, temperature sensor I, a flow sensor, temperature sensor II, and a vibration sensor; Two torque sensors are respectively installed on the two drive shafts, and two speed sensors are respectively installed on the two drive shafts to obtain the speed data of the corresponding power system and the torque data I of the sun gear shaft and the torque data II of the planet carrier shaft. Pressure sensor, temperature sensor I, flow sensor, temperature sensor II, and vibration sensor are all installed on the high-speed planetary gear set test apparatus. The pressure sensor is used to measure the pressure of the lubricating oil in the oil inlet to obtain lubricating oil pressure data; the flow sensor is used to measure the flow rate of the lubricating oil in the oil inlet to obtain lubricating oil flow rate data; temperature sensor I is used to measure the temperature of the lubricating oil on the left side of the cavity inside the fixed housing to obtain oil temperature data I; temperature sensor II is used to measure the temperature of the lubricating oil on the right side of the cavity inside the fixed housing to obtain oil temperature data II; the vibration sensor is used to collect vibration data of the high-speed planetary gear set test apparatus. The data acquisition card collects speed data, torque data, pressure data, flow data, oil temperature data I, oil temperature data II, and vibration data, and then transmits them to the computer. The computer in the control and data processing system also has embedded data processing software to receive and process the data collected by the data acquisition card.

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