CN116413027A - Comprehensive performance test platform for planetary roller screw and planetary reducer - Google Patents
Comprehensive performance test platform for planetary roller screw and planetary reducer Download PDFInfo
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- CN116413027A CN116413027A CN202310373492.8A CN202310373492A CN116413027A CN 116413027 A CN116413027 A CN 116413027A CN 202310373492 A CN202310373492 A CN 202310373492A CN 116413027 A CN116413027 A CN 116413027A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
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Abstract
The invention discloses a comprehensive performance test platform for a planetary roller screw and a planetary reducer, which comprises a test bed base, wherein one end of the test bed base is provided with a movable platform and a planetary reducer bracket in a sliding manner; the one end that movable platform kept away from planetary reducer support is fixed to be provided with driving motor, movable platform's the other end is fixed to be provided with the bearing frame, be provided with the transmission shaft on the bearing frame, the transmission shaft is close to driving motor's one end is connected with first angle encoder's output, driving motor's drive shaft with be connected with the transmission between the input of first angle encoder and be provided with first moment sensor between the two. The invention can be suitable for measuring the comprehensive performance parameters of planetary roller screws with various sizes and speed reducers with different types, can save the manufacturing cost in actual production, fully utilizes the test module and reduces the occupied space of a laboratory table.
Description
Technical Field
The invention relates to the technical field of mechanical performance testing, in particular to a comprehensive performance testing platform for a planetary roller screw and a planetary reducer.
Background
Planetary roller screw Pair (PRSM) is a mechanical device capable of converting rotary motion into linear motion, and is commonly used in linear servo systems of mechanical equipment in military fields such as aerospace, weaponry and the like and civil fields such as numerical control machine tools, medical instruments and the like. The input modes of the speed reducer and the planetary roller screw are rotary motion, are independent components consisting of gear transmission, worm transmission and gear-worm transmission which are enclosed in a rigid shell, have the characteristics of compact structure, large transmission ratio, good stability and the like, are often used as a speed reduction transmission device between a driving element and a working machine, and are widely applied to the engineering fields of aerospace, engineering appliances and the like.
Along with the gradual maturation and industrialization of the planetary roller screw in domestic technology, the application fields of the planetary roller screw and the speed reducer are increased, but the equipment for simultaneously applying the planetary roller screw and the speed reducer to the comprehensive performance of the planetary roller screw and the speed reducer is still blank. And part of comprehensive performance test indexes (such as transmission efficiency, rotating speed and the like) of the two are the same, and different comprehensive performance experiment tables are respectively designed to ensure that the experiment tables have single functions, so that corresponding test equipment cannot be efficiently utilized, and the cost for manufacturing and purchasing the experiment tables is greatly increased.
The comprehensive performance experiment table developed at the current stage in China can finish the test of single or multiple performance parameters, but only aims at the planetary roller screw or the speed reducer independently, and the test cannot be finished on the same experiment table in the face of occasions needing to perform the comprehensive performance test of the planetary roller screw and the speed reducer at the same time. The mature and professional multipurpose comprehensive performance experiment table is an urgent need to be solved in the related industry at present, so that the design of the experiment table which can be used for the comprehensive performance test of the planetary roller screw and the reducer simultaneously has important engineering application value and significance.
Disclosure of Invention
The invention aims to provide a comprehensive performance test platform for a planetary roller screw and a planetary reducer, which solves the technical problems mentioned in the background art.
In order to solve the technical problems, the invention adopts the following technical scheme:
the invention relates to a comprehensive performance test platform for a planetary roller screw and a planetary reducer, which comprises a test bed base, wherein one end of the test bed base is provided with a movable platform and a planetary reducer bracket in a sliding manner; the device comprises a movable platform, a planetary reducer and a first angle encoder, wherein a driving motor is fixedly arranged at one end of the movable platform, which is far away from the planetary reducer, a bearing seat is fixedly arranged at the other end of the movable platform, a transmission shaft is arranged on the bearing seat, one end, which is close to the driving motor, of the transmission shaft is connected with the output end of the first angle encoder, a driving shaft of the driving motor is in transmission connection with the input end of the first angle encoder, and a first moment sensor is arranged between the driving shaft and the input end of the first angle encoder; a planetary reducer support flange plate is arranged on one side, close to the bearing seat, of the planetary reducer support, and a hollow shaft is arranged on the other side of the planetary reducer support; the middle part of the test bed base is fixedly provided with an angle encoder base, the middle part of the angle encoder base is provided with a second angle encoder, two symmetrical sliding ends of the angle encoder base are provided with two connecting rods, one end, close to the planetary reducer support, of each connecting rod is fixedly connected with a thrust plate, and a thrust sensor is arranged on each thrust plate; the other end of the test bed base is fixedly provided with a servo motor, a conversion mechanism box body is fixedly arranged between the servo motor and the angle encoder base, an input shaft is rotatably arranged at one end, close to the angle encoder base, of the middle part of the conversion mechanism box body, and an output shaft is rotatably arranged at one end, close to the servo motor, of the middle part of the conversion mechanism box body; one end of the input shaft, which is positioned outside the conversion box, is in transmission connection with the output end of the second angle encoder, a second moment sensor is arranged between the input shaft and the output end, and one end of the output shaft, which is positioned outside the conversion box, is connected with the driving shaft of the servo motor; the test bed base is in the conversion box with the symmetry is provided with two electronic jars between the angle encoder base, two the input of electronic jar with be connected with two respectively the other end of connecting rod, two the lead screw axle of the output of electronic jar extends to respectively the inside of conversion box, two lead screw axles with be provided with conversion mechanism between the input shaft with the output shaft.
Further, two linear guide rails are symmetrically and fixedly arranged at the upper part of the test bed base, and two groups of first sliding blocks which are respectively in sliding fit with the two linear guide rails are symmetrically and fixedly arranged at the bottom of the movable platform; two second sliding blocks which are respectively in sliding fit with the two linear guide rails are symmetrically and fixedly arranged at the bottom of the planetary reducer support.
Further, a driving motor support for installing a driving motor is fixedly arranged at the end part of the movable platform, a driving motor speed reducer is further arranged on the driving motor support, and the input end of the driving motor speed reducer is connected with a driving shaft of the driving motor.
Further, two ends of the first torque sensor are respectively connected with the output end of the driving motor speed reducer and the input end of the first angle encoder through two first elastic couplings.
Further, two ends of the second torque sensor are respectively connected with the input shaft and the output end of the second angle encoder through two second elastic couplings.
Further, the other end of the test bed base is fixedly provided with a servo motor support for mounting the servo motor, a servo motor speed reducer is further arranged on the servo motor support, and the servo motor is connected with the input end of the servo motor speed reducer.
Further, the output end of the servo motor speed reducer is connected with the output shaft through a third elastic coupling.
Further, the conversion mechanism comprises an internal spline shaft sleeve, a spline tooth connecting sleeve arranged at the end part of the input shaft and a spline tooth gear sleeve rotatably sleeved on the output shaft; one end of the spline tooth gear sleeve is in running fit with the side wall of the conversion mechanism box body, and one end of the two screw shafts positioned in the conversion mechanism box body is provided with screw shaft gears meshed with gears on the spline tooth gear sleeve; one end of the output shaft, which is positioned in the conversion mechanism box body, extends to the outside of the spline tooth gear sleeve, and a spline structure is arranged at the end part of the output shaft; and a shifting fork which enables the inner spline shaft sleeve to axially move is arranged outside the inner spline shaft sleeve.
Further, a box bearing for supporting the screw shaft, the input shaft and the output shaft is arranged on the side wall of the conversion mechanism box.
Further, the test bed base is provided with a grating ruler between the two linear guide rails, and a grating ruler reading head is arranged at the lower part of the planetary reducer support.
Compared with the prior art, the invention has the beneficial technical effects that:
the invention can adapt to the measurement of comprehensive performance parameters of planetary roller screws with various sizes and different types of reducers, and for the planetary roller screws with different sizes, the planetary roller screws can be mounted on a laboratory table only by designing clamps with corresponding sizes, and for the planetary reducers with different sizes, the planetary reducers can be mounted on the laboratory table only by designing flanges with corresponding sizes and connecting shafts, so that quick and stable workpiece dismounting is realized. The invention can realize the test of various performance indexes by installing and adjusting different test components, can be comprehensively used for the performance test of the planetary roller screw and the planetary reducer, can save the manufacturing cost in actual production, fully utilizes the test module and reduces the occupied space of a laboratory bench.
Drawings
The invention is further described with reference to the following description of the drawings.
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of the planetary roller screw comprehensive performance test according to the invention;
FIG. 3 is a schematic view of a lead screw fixture;
FIG. 4 is a schematic diagram of a planetary reducer comprehensive performance test according to the present invention;
FIG. 5 is a schematic diagram of a conversion mechanism;
reference numerals illustrate: 1. a servo motor; 2. a servo motor reducer; 3. a servo motor bracket; 4. an elastic coupling; 5. a conversion mechanism housing; 6. an electric cylinder; 7. a torque sensor; 8. an elastic coupling; 9. an angle encoder base; 10. a thrust plate; 11. a push force sensor; 12. a hollow shaft; 13. a planetary reducer support; 14. a bearing seat; 15. a first angle encoder; 16. a first elastic coupling; 17. a first torque sensor; 18. a driving motor bracket; 19. a drive motor reducer; 20. a driving motor; 21. a linear guide rail; 22. a first slider; 23. a test bed base; 24. planetary reducer support flange plate; 25. a nut; 26. a screw rod; 27. a screw clamp; 28. a planetary reducer; 29. spline teeth gear sleeve; 30. a shifting fork; 31. a screw shaft gear; 32. a box bearing; 33. a conversion mechanism flange; 34. spline tooth connecting sleeve; 35. an internal spline sleeve; 36. an input shaft; 37. a movable platform; 38. a second slider; 39. a connecting rod; 40. an output shaft; 41. and a screw shaft.
Detailed Description
As shown in fig. 1, the comprehensive performance test platform for the planetary roller screw and the planetary reducer comprises a test bed base 23, wherein one end of the test bed base 23 is slidably provided with a movable platform 37 and a planetary reducer bracket 13. Specific: two linear guide rails 21 are symmetrically and fixedly arranged on the upper portion of the test bed base 23, and two groups of first sliding blocks 22 which are respectively in sliding fit with the two linear guide rails 21 are symmetrically and fixedly arranged on the bottom of the movable platform 37. Two second sliding blocks 38 which are respectively in sliding fit with the two linear guide rails 21 are symmetrically and fixedly arranged at the bottom of the planetary reducer bracket 13. In addition, a grating ruler is also arranged between the two linear guide rails, and a grating ruler reading head is arranged at the lower part of the planetary reducer bracket 13.
The movable platform 37 is fixedly provided with a driving motor 20 at one end far away from the planetary reducer bracket 13. Specific: the end of the movable platform 37 is fixedly provided with a driving motor bracket 18 for mounting the driving motor 20, the driving motor bracket 18 is also provided with a driving motor reducer 19, and the input end of the driving motor reducer 19 is connected with the driving shaft of the driving motor 20.
The other end of the movable platform 37 is fixedly provided with a bearing seat 14, and a transmission shaft is rotatably arranged on the bearing seat 14. One end of the transmission shaft, which is close to the driving motor 20, is connected with the output end of the first angle encoder 15, and the driving shaft of the driving motor 20 is in transmission connection with the input end of the first angle encoder 15, and a first moment sensor 17 is installed between the driving shaft and the input end of the first angle encoder 15. In this embodiment, the two ends of the first torque sensor 17 are respectively connected to the output end of the driving motor reducer 19 and the input end of the first angle encoder 15 through two first elastic couplings 16.
A planetary reducer support flange 24 is installed on one side of the planetary reducer support 13, which is close to the bearing seat 14, and a hollow shaft 12 is arranged on the other side of the planetary reducer support 13.
The second angle encoder base 9 is fixedly arranged on the test bed base 23, and a second angle encoder is arranged in the middle of the angle encoder base 9. Two connecting rods 39 are symmetrically arranged at two ends of the angle encoder base 9 in a sliding mode, one ends, close to the planetary reducer support 13, of the two connecting rods 39 are fixedly connected with the thrust plate 10, and the thrust plate 10 is provided with a thrust sensor 11.
The other end of the test bed base 23 is fixedly provided with a servo motor 1, and a conversion mechanism box 5 is fixedly arranged between the servo motor 1 and the angle encoder base 9. In this embodiment, a servo motor bracket 3 for mounting the servo motor 1 is fixedly mounted at the other end of the test bed base 23, and a servo motor reducer 2 is further mounted on the servo motor bracket 3, and the servo motor 1 is connected with an input end of the servo motor reducer 2.
An input shaft 36 is rotatably mounted at one end of the middle part of the conversion mechanism box 5, which is close to the angle encoder base 9, and an output shaft 40 is rotatably mounted at one end of the middle part of the conversion mechanism box 5, which is close to the servo motor 1. One end of the input shaft 36, which is located outside the conversion box 5, is in transmission connection with the output end of the second angle encoder, and a second torque sensor 7 is disposed between the two ends, specifically: the two ends of the second torque sensor 7 are respectively connected with the input shaft 36 and the output end of the second angle encoder 7 through two second elastic couplings 8.
One end of the output shaft 40, which is located outside the conversion box 5, is connected to the driving shaft of the servo motor 1, specifically: the output end of the servo motor reducer 2 is connected with one end of the output shaft 40, which is positioned outside the conversion box 5, through a third elastic coupling 4.
The test bed base 23 is symmetrically and fixedly provided with two electric cylinders 6 between the conversion box body 5 and the angle encoder base 9, and the input ends of the two electric cylinders 6 are respectively connected with the other ends of the two connecting rods 39. The screw shafts 41 at the output ends of the two electric cylinders 6 extend into the conversion box 5, and a conversion mechanism is arranged between the two screw shafts 41 and the input shaft 36 and the output shaft 40.
As shown in fig. 5, the conversion mechanism includes an internal spline shaft sleeve 35, a spline tooth connecting sleeve 34 mounted at the end of the input shaft 36, and a spline tooth gear sleeve 29 rotatably sleeved on the output shaft 40, one end of the spline tooth gear sleeve 29 is in running fit with the side wall of the conversion mechanism box 5, and two screw shaft gears 31 meshed with the gears on the spline tooth gear sleeve 29 are mounted at one ends of the two screw shafts 41 located inside the conversion mechanism box 5. The output shaft 36 is located at one end of the inside of the conversion mechanism box 5 and extends to the outside of the spline teeth gear sleeve 29, and a spline structure is arranged at the end, and the inner spline shaft 35 is slidably matched with the spline structures of the spline teeth connecting sleeve 34, the spline teeth gear sleeve 29 and the input shaft end. The inside spline shaft 35 is provided at the outside thereof with a shift fork 30 driving the axial movement thereof.
In addition, a plurality of box bearings 32 for supporting the screw shaft, the input shaft and the output shaft are mounted on the side wall of the conversion mechanism box 5, and a conversion structure flange 33 for connecting the corresponding second elastic coupling 8 is mounted on the end of the input shaft 36.
In the present invention, as shown in fig. 2, when the comprehensive performance test of the planetary roller screw is performed, the screw 26 and the connecting shaft on the bearing seat 14 are fixed by the screw clamp 27 according to the length of the planetary roller screw, and the structure of the screw clamp is shown in fig. 3. The nut 25 is secured to the planetary reducer carrier flange 24 by a flanged connection and ensures that the installed screw shaft is coaxial with the drive shaft of the drive motor. The movable platform 37 and the planetary reducer bracket 13 are moved to a proper position through the linear guide rail 21, so that the nuts 25 and the planetary reducer bracket flange 24 are fixedly connected through flanges. The other side of the planetary reducer bracket flange 24 is fixedly connected with the thrust plate 10 through flanges at two sides of the hollow shaft 12, and the thrust sensor 11 is fixedly connected with the thrust plate 10 through flanges. The shift fork 30 is moved to one side of the output shaft so that the output shaft is connected with the spline teeth gear sleeve through the internal spline shaft sleeve. The input torque of the drive motor 20 is transmitted via the first elastic coupling 16 to the screw clamp 27 and via the key connection to the screw 26, while the screw clamp 27 and the nut 25 ensure that no axial displacement of the screw occurs. The screw rod 26 rotates to drive the nut 25 to linearly move along the direction of the linear guide rail 21, and the output axial force is transmitted to the flange 24 of the planetary reducer bracket and is transmitted to the thrust plate 10 through the hollow shaft 12 to drive the planetary reducer bracket 13 to linearly move along the direction of the linear guide rail as well as the thrust plate 10. The connecting rods on two sides of the thrust plate 10 input thrust to the electric cylinder 6, the electric cylinder 6 converts linear motion into rotary motion, a screw shaft of the electric cylinder outputs and drives a screw shaft gear 31 to rotate, a spline tooth gear sleeve 29 is driven to rotate through meshing, an output shaft is driven to rotate through spline teeth and an inner spline shaft sleeve 35, and output torque is transmitted to the servo motor 1 through an elastic coupling 4. The grating ruler reading head moves along the grating ruler grating to record the movement data of the nut, and the thrust force sensor records the thrust data generated by the thrust plate.
In this embodiment, the driving motor 20 can provide accurate input torque for the planetary roller screw, and the first elastic coupling 16 can eliminate the inter-shaft gap, so as to ensure accurate transmission on the premise of installation error. The first torque sensor 17 can accurately measure the input torque provided by the servo motor, the first angle encoder 15 is used for measuring the input angle of the planetary roller screw, and the linear guide rail can ensure accurate linear motion of the movable platform and the planetary reducer bracket 13; the grating ruler can accurately record the linear motion state and start and end positions of the planetary reducer support 13, and the thrust force sensor can accurately record the thrust force of the thrust plate, so that the axial force provided by the planetary roller screw rod is reflected.
As shown in fig. 4, in the comprehensive performance test of the planetary reducer, the planetary reducer 28 is mounted on the planetary reducer support 13, the thrust plate 10 is dismounted, the shifting fork 30 is adjusted to the input shaft end, the input shaft and the output shaft are in transmission connection with the spline tooth connecting sleeve 35 through the internal spline shaft sleeve 35, the movable platform is moved to a proper position through the guide rail, the connecting shaft of the bearing seat 14 and the planetary reducer 28 can be connected through the short shaft, the flange on the output shaft side of the planetary reducer 28 and the input shaft of the second angle encoder can be radially fixed through the key connection, the short shaft flange connection of the input shaft end and the key connection ensure the transmission of input torque, the output torque is transmitted to the second angle encoder and the conversion mechanism, at the moment, the electric cylinder and the gear structure are not operated, the conversion mechanism is only used as a transmission shaft, the output torque is transmitted to the servo motor through the third elastic coupling, and the second torque sensor can accurately record the output torque of the servo motor, so as to reflect the output torque of the planetary reducer.
In the embodiment, the driving motor can provide accurate input torque for the planetary reducer, and the plurality of elastic couplings can eliminate gaps among shafts so as to ensure accurate transmission on the premise of ensuring installation errors. The torque sensor can accurately measure the input torque provided by the driving motor and the output torque of the loading motor, the angle encoder is used for measuring the input angle of the speed reducer, and the linear guide rail can ensure the accurate linear motion of the movable platform and the planetary speed reducer support to be used for adjusting the positions of the input shaft and the output shaft of the planetary speed reducer.
In view of the above, the present invention does not limit the practical design of the laboratory bench in any form, the structure of the conversion mechanism of the laboratory bench is shown in fig. 5, the mechanism capable of realizing the same function can be still used for the laboratory bench by adjusting the arrangement of the laboratory bench, a large amount of space is remained on the laboratory bench for adding additional test modules, and more performance tests can be realized by installing a temperature sensor, a sound level meter, a vibration sensor, etc. on the laboratory bench. Therefore, the above embodiments are only illustrative of the preferred embodiments of the present invention and not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art to the technical solutions of the present invention should fall within the protection scope defined by the claims of the present invention without departing from the design spirit of the present invention.
Claims (10)
1. A comprehensive performance test platform for a planetary roller screw and a planetary reducer is characterized in that: the test bed comprises a test bed base (23), wherein one end of the test bed base (23) is provided with a movable platform (37) and a planetary reducer bracket (13) in a sliding manner; one end of the movable platform (37) far away from the planetary reducer bracket (13) is fixedly provided with a driving motor (20), the other end of the movable platform (37) is fixedly provided with a bearing seat (14), the bearing seat (14) is provided with a transmission shaft, one end of the transmission shaft close to the driving motor (20) is connected with the output end of a first angle encoder (15), and a driving shaft of the driving motor (20) is in transmission connection with the input end of the first angle encoder (15) and a first moment sensor (17) is arranged between the driving motor and the input end of the first angle encoder; one side of the planetary reducer support (13) close to the bearing seat (14) is provided with a planetary reducer support flange (24), and the other side of the planetary reducer support (13) is provided with a hollow shaft (12); the middle part of the test bed base is fixedly provided with an angle encoder base (9), the middle part of the angle encoder base (9) is provided with a second angle encoder, two symmetrical sliding ends of the angle encoder base (9) are provided with two connecting rods (39), one end, close to the planetary reducer bracket (13), of each connecting rod (39) is fixedly connected with a thrust plate (10) in common, and the thrust plates (10) are provided with thrust sensors (11); the test bench comprises a test bench base, a servo motor (1) and a conversion mechanism box body (5) fixedly arranged between the servo motor (1) and an angle encoder base (9), wherein an input shaft is rotatably arranged at one end, close to the angle encoder base (9), of the middle part of the conversion mechanism box body (5), and an output shaft is rotatably arranged at one end, close to the servo motor (1), of the middle part of the conversion mechanism box body (5); one end of the input shaft, which is positioned outside the conversion box body (5), is in transmission connection with the output end of the second angle encoder, a second moment sensor is arranged between the input shaft and the output end, and one end of the output shaft, which is positioned outside the conversion box body, is connected with the driving shaft of the servo motor (1); the test bed base (23) is provided with two electric cylinders (6) symmetrically between the conversion box body (5) and the angle encoder base (9), the input ends of the two electric cylinders (6) are respectively connected with the other ends of the two connecting rods, screw shafts at the output ends of the two electric cylinders (6) respectively extend to the inside of the conversion box body (5), and a conversion mechanism is arranged between the two screw shafts and the input shaft and the output shaft.
2. The comprehensive performance testing platform of the planetary roller screw and the planetary reducer according to claim 1, wherein: two linear guide rails (21) are symmetrically and fixedly arranged at the upper part of the test bed base (23), and two groups of first sliding blocks (22) which are respectively in sliding fit with the two linear guide rails (21) are symmetrically and fixedly arranged at the bottom of the movable platform (37); two second sliding blocks (38) which are respectively in sliding fit with the two linear guide rails (21) are symmetrically and fixedly arranged at the bottom of the planetary speed reducer bracket (13).
3. The comprehensive performance testing platform of the planetary roller screw and the planetary reducer according to claim 1, wherein: the end part of the movable platform (37) is fixedly provided with a driving motor bracket (18) for installing a driving motor, the driving motor bracket (18) is also provided with a driving motor reducer (19), and the input end of the driving motor reducer (19) is connected with a driving shaft of the driving motor.
4. The comprehensive performance testing platform for the planetary roller screw and the planetary reducer according to claim 3, wherein: the two ends of the first torque sensor (17) are respectively connected with the output end of the driving motor reducer (19) and the input end of the first angle encoder (15) through two first elastic couplings (16).
5. The comprehensive performance testing platform of the planetary roller screw and the planetary reducer according to claim 1, wherein: two ends of the second torque sensor (7) are respectively connected with the input shaft and the output end of the second angle encoder through two second elastic couplings (8).
6. The comprehensive performance testing platform of the planetary roller screw and the planetary reducer according to claim 1, wherein: the other end of the test bed base (23) is fixedly provided with a servo motor support (3) for mounting the servo motor (1), a servo motor speed reducer (2) is further arranged on the servo motor support (3), and the servo motor (1) is connected with the input end of the servo motor speed reducer (2).
7. The comprehensive performance testing platform of the planetary roller screw and the planetary reducer according to claim 6, wherein: the output end of the servo motor speed reducer (2) is connected with the output shaft through a third elastic coupling (4).
8. The comprehensive performance testing platform of the planetary roller screw and the planetary reducer according to claim 1, wherein: the conversion mechanism comprises an internal spline shaft sleeve (35), a spline tooth connecting sleeve (34) arranged at the end part of the input shaft and a spline tooth gear sleeve (29) rotatably sleeved on the output shaft; one end of the spline tooth gear sleeve (29) is in running fit with the side wall of the conversion mechanism box body, and one end of the two screw shafts positioned in the conversion mechanism box body is provided with a screw shaft gear meshed with a gear on the spline tooth gear sleeve (29); one end of the output shaft, which is positioned in the conversion mechanism box, extends to the outside of the spline tooth gear sleeve (29), and a spline structure is arranged at the end part of the output shaft, and the inner spline shaft sleeve (35) is in sliding fit with the spline structures of the spline tooth connecting sleeve (34), the spline tooth gear sleeve (29) and the end part of the input shaft; the outside of the internal spline shaft sleeve (35) is provided with a shifting fork (30) which enables the internal spline shaft sleeve to axially move.
9. The comprehensive performance testing platform of the planetary roller screw and the planetary reducer according to claim 8, wherein: and a box bearing for supporting the screw shaft, the input shaft and the output shaft is arranged on the side wall of the conversion mechanism box (5).
10. The comprehensive performance testing platform of the planetary roller screw and the planetary reducer according to claim 2, wherein: the test bed base (23) is provided with a grating ruler between the two linear guide rails, and a grating ruler reading head is arranged at the lower part of the planetary reducer bracket (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310373492.8A CN116413027A (en) | 2023-04-10 | 2023-04-10 | Comprehensive performance test platform for planetary roller screw and planetary reducer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310373492.8A CN116413027A (en) | 2023-04-10 | 2023-04-10 | Comprehensive performance test platform for planetary roller screw and planetary reducer |
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| CN116413027A true CN116413027A (en) | 2023-07-11 |
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| CN202310373492.8A Pending CN116413027A (en) | 2023-04-10 | 2023-04-10 | Comprehensive performance test platform for planetary roller screw and planetary reducer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117856523A (en) * | 2024-03-07 | 2024-04-09 | 吉林大学 | Compact integrated telescopic rotary electric cylinder |
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2023
- 2023-04-10 CN CN202310373492.8A patent/CN116413027A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117856523A (en) * | 2024-03-07 | 2024-04-09 | 吉林大学 | Compact integrated telescopic rotary electric cylinder |
| CN117856523B (en) * | 2024-03-07 | 2024-05-07 | 吉林大学 | Compact integrated telescopic rotary electric cylinder |
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