CN110672318A - Device and method for measuring transmission efficiency of ball screw pair based on power driving system - Google Patents
Device and method for measuring transmission efficiency of ball screw pair based on power driving system Download PDFInfo
- Publication number
- CN110672318A CN110672318A CN201910890217.7A CN201910890217A CN110672318A CN 110672318 A CN110672318 A CN 110672318A CN 201910890217 A CN201910890217 A CN 201910890217A CN 110672318 A CN110672318 A CN 110672318A
- Authority
- CN
- China
- Prior art keywords
- ball screw
- tested
- power driving
- nut
- drive
- 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.)
- Pending
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
- G01M13/027—Test-benches with force-applying means, e.g. loading of drive shafts along several directions
Abstract
The invention discloses a device and a method for measuring the transmission efficiency of a ball screw pair based on a power driving system, wherein the device comprises a lathe bed, and a torsion power driving device, a linear power driving device, a nut axial force measuring device, a ball screw rotating speed measuring device, a nut axial speed measuring device and a ball screw torque measuring device which are arranged on the lathe bed; the torsion power driving device and the linear power driving device can both realize driving and loading, the torsion power driving device is used for generating driving torque and loading torque for the ball screw to be tested, and the linear power driving device is used for generating driving force and loading force for the nut of the ball screw pair to be tested. The method can realize the measurement of the forward and reverse stroke transmission efficiency of the screw under four conditions of forward transmission loaded, forward transmission unloaded, reverse transmission loaded and reverse transmission unloaded based on the device. The invention has simple measurement principle, can realize dynamic measurement of transmission efficiency, and has simple operation, convenient installation, high reliability and high practicability.
Description
Technical Field
The invention belongs to the field of dynamic efficiency measurement of a ball screw pair, and particularly relates to a device and a method for measuring transmission efficiency of the ball screw pair based on a power driving system.
Background
In modern manufacturing systems, the development of numerically controlled machine tool technology is inseparably linked with the development of manufacturing. In recent years, with the gradual improvement of the technical level of the domestic numerical control machine tool industry, the performance of the numerical control machine tool is rapidly developed. However, in the core technical field of the numerical control machine tool, the development of the machine tool industry in China has a large gap compared with the international advanced level, and the gap is particularly obvious in the aspects of high-performance and high-precision high-end machine tool industries. The ball screw pair is used as a rolling part of a core function of a numerical control machine tool, the problems in the aspects of dynamic measurement of transmission efficiency and performance characteristic research are very outstanding, and the technical level progress is urgently needed to solve the problems. Therefore, the dynamic measurement and performance research of the transmission efficiency of the ball screw pair are extremely important, and the ball screw pair is a major problem which is urgently needed to be solved by the current numerical control machine tool industry in China.
The transmission efficiency of the ball screw pair is the ratio of output power to input power, which is theoretically defined, and the size of the transmission efficiency directly affects the quality of the screw pair and even the whole numerical control machine tool. Therefore, the dynamic measurement of the transmission efficiency of the ball screw pair and the research and analysis of the comprehensive performance have a decisive role in improving the quality of machine tool products, the research on the dynamic measurement of the transmission efficiency in China is still few at present, and a test bed specially used for dynamically measuring the transmission efficiency of the ball screw pair does not exist for a while, so that the field also has considerable improvement and improvement space.
The existing test device for measuring the transmission efficiency does not have a special test table, only the function to be realized is added on the basis of other test devices, the friction torque is usually measured, then the measurement on the load F is realized by carrying out mathematical relationship conversion, the linear moving speed v of the workbench is offset by the relationship between the rotating angular speed and the lead of the lead screw, but in the experimental process, the surface precision of the lead screw and the accuracy degree of the friction torque measurement can influence the result, so that the finally measured transmission efficiency error is larger.
Disclosure of Invention
The invention aims to provide a device and a method which can realize dynamic measurement of transmission efficiency of each state of a ball screw pair through one-time clamping and have the advantages of convenience in installation, simplicity and reliability in operation, high measurement precision and the like.
The technical solution for realizing the purpose of the invention is as follows: a ball screw pair transmission efficiency measuring device based on a power driving system comprises a lathe bed, and a torsion power driving device, a linear power driving device, a nut axial force measuring device, a ball screw rotating speed measuring device, a nut axial speed measuring device and a ball screw torque measuring device which are arranged on the lathe bed; the torsion power driving device and the linear power driving device can both realize driving and loading, the torsion power driving device is used for generating driving torque and loading torque for the ball screw to be tested, and the linear power driving device is used for generating driving force and loading force for the nut of the ball screw pair to be tested;
the power drive is converted to realize a positive drive no-load state, the torsion power drive device drives the ball screw to be tested to rotate to drive the nut of the ball screw pair to be tested to axially move, and the nut of the ball screw pair to be tested drives the workbench provided with the linear power drive device to move along a guide rail arranged on the lathe bed;
the positive transmission loaded state is realized by changing power drive, the torsion power drive device drives the ball screw to be tested to rotate and drives the nut of the ball screw pair to be tested to move axially, the nut of the ball screw pair to be tested drives the workbench provided with the linear power drive device to move along the guide rail, and meanwhile, the linear power drive device is arranged to brake and load the ball screw to be tested for a deceleration brake gear;
the linear power driving device is arranged to drive a feeding gear, and moves along the guide rail direction to drive a workbench connected with the ball screw nut to be tested to move so as to drive the ball screw nut to be tested to move axially, and further drive the ball screw to be tested to rotate;
the power driving is changed to realize a reverse transmission loaded state, a linear power driving device is set to drive a feeding gear, the linear power driving device moves along the direction of the guide rail to drive a workbench connected with the ball screw nut to be tested to move so as to drive the ball screw nut to be tested to move axially and further drive the ball screw to be tested to rotate, and meanwhile, a torsional power driving device is set to brake and load the ball screw to be tested for a deceleration braking gear;
switching the forward rotation and the reverse rotation of the torsion power driving device or the linear power driving device to realize the forward and reverse stroke movement of the ball screw pair nut to be tested;
in each state, the ball screw rotating speed measuring device and the ball screw torque measuring device respectively measure the rotating speed and the torque of the ball screw to be measured, the nut axial speed measuring device measures the axial speed of the ball screw pair nut to be measured, and the nut axial force measuring device measures the axial force of the ball screw pair nut to be measured.
Furthermore, the torsion power driving device is connected with one end of the ball screw to be tested sequentially through the ball screw rotating speed measuring device, the first coupler, the ball screw torque measuring device and the second coupler, a nut of the ball screw to be tested is connected with the workbench through the nut axial force measuring device, and the other end of the ball screw to be tested is installed on the lathe bed through the supporting tailstock; the torsion power driving device and one end of the ball screw to be tested are both arranged on the lathe bed through the headstock; the nut axial speed measuring device is arranged on a lathe bed below the workbench.
A method for measuring transmission efficiency of a ball screw pair based on a power driving system comprises the following steps:
step 2, fixing a nut of the ball screw to be measured on a workbench, and adjusting the ball screw to be measured to move to a measurement starting end through a torsional power driving device;
and 8, assuming that the states from the step 4 to the step 7 are transmission efficiency measurement under a positive stroke, reversing the torsional power driving device and the linear power driving device, and repeating the steps from the step 4 to the step 7 to measure the transmission efficiency of a reverse stroke.
Compared with the prior art, the invention has the following remarkable advantages: 1) the measuring principle is simple, and after the screw is clamped for one time, the forward and reverse stroke transmission efficiency of the screw under four conditions of positive transmission loaded, positive transmission unloaded, reverse transmission loaded and reverse transmission unloaded can be measured by changing power drive; 2) the gear switching is realized by operating the power driving system, the control is simple and reliable, and the practical performance and the operating performance of the device are greatly improved; 3) the device adopts horizontal structure, and overall structure is simple, can reduce the influence of workstation gravity to measuring, reduces the loaded degree of difficulty, and it is more convenient to compare vertical test bench installation simultaneously, operates more portably, and the reliability is higher.
The present invention is described in further detail below with reference to the attached drawing figures.
Drawings
Fig. 1 is a general structural schematic diagram of a ball screw pair transmission efficiency measuring device based on a power driving system.
Fig. 2 is a schematic view of the installation of a linear power driving device of the device in one embodiment of the invention.
FIG. 3 is a schematic view of the torsional power drive assembly of the apparatus according to one embodiment of the present invention.
Fig. 4 is a schematic diagram of a bed structure of the apparatus according to one embodiment of the present invention.
Detailed Description
With reference to fig. 1, the device for measuring the transmission efficiency of the ball screw pair based on the power drive system of the invention comprises a machine body 7, and a torsional power drive device 1, a linear power drive device 2, a nut axial force measuring device 3, a ball screw rotating speed measuring device 4, a nut axial speed measuring device 5 and a ball screw torque measuring device 6 which are arranged on the machine body 7; the torsion power driving device 1 and the linear power driving device 2 can both realize driving and loading, the torsion power driving device 1 is used for generating driving torque and loading torque for the ball screw to be tested, and the linear power driving device 2 is used for generating driving force and loading force for the nut of the ball screw pair to be tested;
the power conversion drive realizes a positive transmission no-load state, the torsion power drive device 1 drives the ball screw to be tested to rotate and drives the nut of the ball screw pair to be tested to axially move, and the nut of the ball screw pair to be tested drives the workbench 11 provided with the linear power drive device 2 to move along a guide rail arranged on the lathe bed 7;
the positive transmission loaded state is realized by changing power drive, the torsion power driving device 1 drives the ball screw to be tested to rotate and drives the nut of the ball screw pair to be tested to move axially, the nut of the ball screw pair to be tested drives the workbench provided with the linear power driving device 2 to move along the guide rail, and meanwhile, the linear power driving device 2 is arranged for braking and loading the ball screw to be tested for a deceleration braking gear;
the linear power driving device 2 is set to drive a feeding gear, and the linear power driving device 2 moves along the guide rail direction to drive a workbench connected with the ball screw nut to be tested to move so as to drive the ball screw nut to be tested to move axially and further drive the ball screw to be tested to rotate;
the reverse transmission loaded state is realized by changing power drive, a linear power driving device 2 is set to drive a feeding gear, the linear power driving device 2 moves along the direction of the guide rail to drive a workbench connected with the ball screw nut to be tested to move so as to drive the ball screw nut to be tested to move axially and further drive the ball screw to be tested to rotate, and meanwhile, a torsional power driving device 1 is set to brake and load the ball screw to be tested for a deceleration braking gear;
switching the forward rotation and the reverse rotation of the torsion power driving device 1 or the linear power driving device 2 to realize the forward and reverse stroke movement of the ball screw pair nut to be tested;
in each of the above states, the ball screw rotation speed measuring device 4 and the ball screw torque measuring device 6 measure the rotation speed and the torque of the ball screw to be measured, the nut axial speed measuring device 5 measures the axial speed of the ball screw nut to be measured, and the nut axial force measuring device 3 measures the axial force of the ball screw nut to be measured.
Further, with reference to fig. 3 and 4, the torsional power driving device 1 is connected to one end of the ball screw to be tested sequentially through the ball screw rotating speed measuring device 4, the first coupler, the ball screw torque measuring device 6 and the second coupler, the nut of the ball screw to be tested is connected to the workbench 11 through the nut axial force measuring device 3, and the other end of the ball screw to be tested is mounted on the lathe bed 7 through the support tailstock 9; the torsion power driving device 1 and one end of the ball screw to be tested are both arranged on the lathe bed 7 through a headstock 8; the nut axial speed measuring device 5 is arranged on the lathe bed 7 below the workbench 11.
Further, in one embodiment, the supporting tailstock 9 can slide along the surface of the bed 7 and is locked by a locking device.
Further, in one of the embodiments, the support tailstock 9 is slidable along a flat groove provided on the surface of the bed 7.
Further, in one embodiment, the torque power driving device 1 is specifically a torque motor.
Further, in one embodiment, referring to fig. 2, the linear power driving device 2 specifically employs a linear motor, and includes a stator 2-1 and a mover 2-2, the stator 2-1 is mounted on the bed 7, the mover 2-2 is connected to the table 11, and the mover 2-2 and the stator 2-1 are in a fit relationship, so that the linear power driving device 2 moves along the guide rail direction.
Further, in one embodiment, the nut axial force measuring module 3 specifically employs a pull pressure sensor, during the forward transmission process, the nut drives the workbench to move to generate a pull pressure, the pull pressure sensor measures the pull pressure value, during the reverse transmission process, the workbench drives the nut to move to generate a pull pressure, and the pull pressure sensor measures the pull pressure value.
Further, in one embodiment, the ball screw rotation speed measuring device 4 is specifically a magnetic grid.
Further, in one embodiment, the nut axial speed measuring device 5 is specifically a grating ruler.
Further, in one of the embodiments, the ball screw torque measuring device 6 is embodied by a torque sensor.
Further, in one embodiment, the bed 7 is of a metal frame structure.
A method for measuring transmission efficiency of a ball screw pair based on a power driving system comprises the following steps:
step 2, fixing a nut of the ball screw to be measured on a workbench, and adjusting the ball screw to be measured to move to a measurement starting end through a torsional power driving device;
and 8, assuming that the states from the step 4 to the step 7 are transmission efficiency measurement under a positive stroke, reversing the torsional power driving device and the linear power driving device, and repeating the steps from the step 4 to the step 7 to measure the transmission efficiency of a reverse stroke.
The device can meet the requirement of measuring the transmission efficiency of the ball screw pair, and can measure the positive and negative stroke transmission efficiency of the ball screw pair under four states of positive transmission loaded, positive transmission unloaded, reverse transmission loaded and reverse transmission unloaded after one-time clamping. The invention realizes gear conversion by operating the power driving system, has simple and reliable control, and greatly increases the practical performance and the operating performance of the device; in addition, a linear power driving system is adopted, so that forward and reverse rotation can be realized, the operation is simple and convenient, the principle is simple, and the reliability is high; and the horizontal structure is adopted, the influence of the gravity of the workbench on the measurement can be reduced, the dynamic measurement is realized, the installation is convenient, and the reliable practical performance is realized.
Claims (10)
1. A ball screw pair transmission efficiency measuring device based on a power driving system is characterized by comprising a machine body (7), and a torsion power driving device (1), a linear power driving device (2), a nut axial force measuring device (3), a ball screw rotating speed measuring device (4), a nut axial speed measuring device (5) and a ball screw torque measuring device (6) which are arranged on the machine body (7); the torsion power driving device (1) and the linear power driving device (2) can both realize driving and loading, the torsion power driving device (1) is used for generating driving torque and loading torque for the ball screw to be tested, and the linear power driving device (2) is used for generating driving force and loading force for a nut of the ball screw pair to be tested;
the positive transmission no-load state is realized by changing power drive, the torsion power driving device (1) drives the ball screw to be tested to rotate and drives the nut of the ball screw pair to be tested to axially move, and the nut of the ball screw pair to be tested drives the workbench (11) provided with the linear power driving device (2) to move along a guide rail arranged on the lathe bed (7);
the positive transmission loaded state is realized by changing power drive, the torsion power driving device (1) drives the ball screw to be tested to rotate and drives the nut of the ball screw pair to be tested to move axially, the nut of the ball screw pair to be tested drives the workbench provided with the linear power driving device (2) to move along the guide rail, and meanwhile, the linear power driving device (2) is arranged to brake and load the ball screw to be tested for a deceleration brake gear;
the linear power driving device (2) is set to drive a feeding gear, and moves along the direction of the guide rail to drive a workbench connected with the ball screw nut to be tested to move so as to drive the ball screw nut to be tested to axially move and further drive the ball screw to be tested to rotate;
the reverse transmission loaded state is realized by changing power drive, a linear power driving device (2) is set to drive a feeding gear, the linear power driving device (2) moves along the direction of the guide rail to drive a workbench connected with the ball screw nut to be tested to move so as to drive the ball screw nut to be tested to move axially and further drive the ball screw to be tested to rotate, and meanwhile, a torsional power driving device (1) is set to brake and load the ball screw to be tested for a deceleration braking gear;
switching the torsion power driving device (1) or the linear power driving device (2) to rotate forwards and backwards to realize the forward and reverse stroke movement of the ball screw pair nut to be tested;
under each state, the rotating speed and the torque of the ball screw to be measured are respectively measured by a ball screw rotating speed measuring device (4) and a ball screw torque measuring device (6), the axial speed of the nut of the ball screw pair to be measured is measured by a nut axial speed measuring device (5), and the axial force of the nut of the ball screw pair to be measured is measured by a nut axial force measuring device (3).
2. The ball screw pair transmission efficiency measuring device based on the power driving system is characterized in that the torsion power driving device (1) is connected with one end of a ball screw to be measured sequentially through a ball screw rotating speed measuring device (4), a first coupler, a ball screw torque measuring device (6) and a second coupler, a nut of the ball screw to be measured is connected with a workbench (11) through a nut axial force measuring device (3), and the other end of the ball screw to be measured is installed on a lathe bed (7) through a supporting tailstock (9); the torsion power driving device (1) and one end of the ball screw to be tested are both arranged on the lathe bed (7) through a headstock (8); the nut axial speed measuring device (5) is arranged on the lathe bed (7) below the workbench (11).
3. The power drive system-based ball screw pair transmission efficiency measuring device according to claim 2, wherein the supporting tailstock (9) can slide along the surface of the machine body (7) and is locked by a locking device.
4. The power drive system-based ball screw pair transmission efficiency measuring device according to claim 3, wherein the support tailstock (9) is slidable along a flat groove provided on the surface of the bed (7).
5. The power drive system-based ball screw pair transmission efficiency measuring device according to claim 1, wherein the torsional power drive device (1) is specifically a torque motor.
6. The device for measuring the transmission efficiency of the ball screw pair based on the power driving system according to claim 1, wherein the linear power driving device (2) specifically adopts a linear motor, and comprises a stator (2-1) and a rotor (2-2), the stator (2-1) is installed on the bed (7), the rotor (2-2) is connected with the worktable (11), and the rotor (2-2) and the stator (2-1) are in a matching relationship, so that the linear power driving device (2) moves along the guide rail direction.
7. The device for measuring the transmission efficiency of the ball screw pair based on the power driving system as claimed in claim 1, wherein the nut axial force measuring module (3) specifically adopts a pull pressure sensor, the nut drives the worktable to move to generate a pull pressure in the forward transmission process, the pull pressure sensor measures the pull pressure value, the worktable drives the nut to move to generate a pull pressure in the reverse transmission process, and the pull pressure sensor measures the pull pressure value.
8. The power-drive-system-based ball screw pair transmission efficiency measuring device is characterized in that the ball screw rotating speed measuring device (4) is specifically a circular magnetic grid; the nut axial speed measuring device (5) specifically adopts a grating ruler; the ball screw torque measuring device (6) specifically adopts a torque sensor.
9. The power-drive-system-based ball screw pair transmission efficiency measurement device according to claim 1, wherein the machine bed (7) is of a metal material frame structure.
10. A method for measuring transmission efficiency of a ball screw pair based on a power driving system is characterized by comprising the following steps:
step 1, mounting a ball screw pair to be tested on a lathe bed;
step 2, fixing a nut of the ball screw to be measured on a workbench, and adjusting the ball screw to be measured to move to a measurement starting end through a torsional power driving device;
step 3, adjusting the position of a travel limit switch, and determining the movement travel and the movement limit position of the ball screw to be detected;
step 4, converting power drive to realize a positive drive no-load state, driving the ball screw to be tested to rotate by the torsion power drive device, driving a nut of the ball screw pair to be tested to axially move, driving a working table provided with the linear power drive device to move along a guide rail arranged on the lathe bed by the nut of the ball screw pair to be tested, and measuring the drive efficiency in the moving process;
step 5, converting power drive to realize a positive transmission loaded state, driving a ball screw to be tested to rotate by a torsional power driving device, driving a nut of a ball screw pair to be tested to move axially, driving a working table provided with a linear power driving device to move along a guide rail arranged on a machine body by the nut of the ball screw pair to be tested, simultaneously setting the linear power driving device to brake and load the ball screw to be tested for a deceleration braking gear, and measuring transmission efficiency in the moving process;
step 6, converting power drive to realize a reverse drive no-load state, setting a linear power driving device as a drive feeding gear, wherein the linear power driving device moves along the direction of a guide rail to drive a workbench connected with the ball screw nut to be tested to move so as to drive the ball screw nut to be tested to move axially, further drive the ball screw to be tested to rotate, and measuring the transmission efficiency in the moving process;
step 7, converting power drive to realize a reverse transmission loaded state, setting a linear power driving device as a driving feed gear, moving the linear power driving device along the direction of a guide rail to drive a workbench connected with a ball screw nut to be tested to move so as to drive the ball screw nut to be tested to move axially and further drive the ball screw to be tested to rotate, and simultaneously setting a torsional power driving device to brake and load the ball screw to be tested for a deceleration brake gear, and measuring transmission efficiency in the moving process;
and 8, assuming that the states from the step 4 to the step 7 are transmission efficiency measurement under a positive stroke, reversing the torsional power driving device and the linear power driving device, and repeating the steps from the step 4 to the step 7 to measure the transmission efficiency of a reverse stroke.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910890217.7A CN110672318A (en) | 2019-09-20 | 2019-09-20 | Device and method for measuring transmission efficiency of ball screw pair based on power driving system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910890217.7A CN110672318A (en) | 2019-09-20 | 2019-09-20 | Device and method for measuring transmission efficiency of ball screw pair based on power driving system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110672318A true CN110672318A (en) | 2020-01-10 |
Family
ID=69078363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910890217.7A Pending CN110672318A (en) | 2019-09-20 | 2019-09-20 | Device and method for measuring transmission efficiency of ball screw pair based on power driving system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110672318A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111351658A (en) * | 2020-03-12 | 2020-06-30 | 南京理工大学 | Friction resistance moment detection device for screw reverser |
| CN113029562A (en) * | 2021-03-17 | 2021-06-25 | 中国航发动力股份有限公司 | Detection method and detection device for load state of lead screw transmission mechanism |
| CN113050599A (en) * | 2021-03-16 | 2021-06-29 | 中国人民解放军国防科技大学 | Fault diagnosis test bed for electromechanical actuator |
| CN113375717A (en) * | 2021-06-02 | 2021-09-10 | 南京理工大学 | Ball screw pair comprehensive performance measuring platform capable of realizing forward and reverse transmission loading |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104266837A (en) * | 2014-10-08 | 2015-01-07 | 上海理工大学 | Ball screw performance testing testbed based on motor servo loading |
| CN107515117A (en) * | 2017-09-25 | 2017-12-26 | 山东博特精工股份有限公司 | Lead screw pair transmission efficiency precision measurement apparatus and measuring method |
| CN109100139A (en) * | 2018-08-25 | 2018-12-28 | 南京理工大学 | A kind of lead screw pair transmission efficiency dynamic measurement device and its measurement method |
-
2019
- 2019-09-20 CN CN201910890217.7A patent/CN110672318A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104266837A (en) * | 2014-10-08 | 2015-01-07 | 上海理工大学 | Ball screw performance testing testbed based on motor servo loading |
| CN107515117A (en) * | 2017-09-25 | 2017-12-26 | 山东博特精工股份有限公司 | Lead screw pair transmission efficiency precision measurement apparatus and measuring method |
| CN109100139A (en) * | 2018-08-25 | 2018-12-28 | 南京理工大学 | A kind of lead screw pair transmission efficiency dynamic measurement device and its measurement method |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111351658A (en) * | 2020-03-12 | 2020-06-30 | 南京理工大学 | Friction resistance moment detection device for screw reverser |
| CN113050599A (en) * | 2021-03-16 | 2021-06-29 | 中国人民解放军国防科技大学 | Fault diagnosis test bed for electromechanical actuator |
| CN113029562A (en) * | 2021-03-17 | 2021-06-25 | 中国航发动力股份有限公司 | Detection method and detection device for load state of lead screw transmission mechanism |
| CN113375717A (en) * | 2021-06-02 | 2021-09-10 | 南京理工大学 | Ball screw pair comprehensive performance measuring platform capable of realizing forward and reverse transmission loading |
| CN113375717B (en) * | 2021-06-02 | 2022-12-13 | 南京理工大学 | Ball screw pair comprehensive performance measuring platform capable of realizing forward and reverse transmission loading |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110672318A (en) | Device and method for measuring transmission efficiency of ball screw pair based on power driving system | |
| CN103018104B (en) | Horizontal measuring device for axial static rigidity of ball screw pair and method thereof | |
| CN109100139B (en) | Dynamic measuring device and measuring method for transmission efficiency of screw pair | |
| CN105181329A (en) | Comprehensive test platform for industrial robot joint reducer | |
| CN109909720B (en) | Method for measuring negative clearance of hub bearing unit | |
| CN105445023A (en) | Static index testing platform and method for industrial robot joint decelerator | |
| CN110926801A (en) | Small-size joint comprehensive properties test machine of service robot | |
| CN104568426A (en) | Comprehensive testing system for dynamic property of harmonic speed reducer | |
| CN207318363U (en) | A kind of shaft member automatic checkout equipment | |
| CN203011772U (en) | Axial static stiffness horizontal measuring device of ball lead screw pair | |
| CN104931258A (en) | Isolator performance test bench | |
| CN109425611A (en) | A kind of shaft member automatic checkout equipment for realizing automated exchanged cutter | |
| CN110207982A (en) | Microminiature ball screw assembly, ultimate load reliability test | |
| CN110657987A (en) | High-speed axial loading test device for ball screw pair | |
| CN203572624U (en) | Axial static rigidity test system for ball screw assembly | |
| CN116872108A (en) | Planet roller screw pair profiler detection platform mounting fixture | |
| CN109188277B (en) | Linear motor thrust fluctuation detection test bed | |
| CN112139608A (en) | Integrated lathe with gear hobbing function and using method thereof | |
| CN204819057U (en) | Automatic burnishing and polishing machine of small -size metal specimen | |
| CN104309388A (en) | High-speed high-precision linear motor carving machine | |
| CN116678617A (en) | Precision measuring device of small-lead planetary roller screw | |
| CN210037209U (en) | Radial loading device for vibration measurement of thin-wall bearing | |
| CN112816212B (en) | Synchronous reciprocating mechanism and testing device for ball screw and guide rail experiment | |
| CN204694471U (en) | Isolator performance test stand | |
| CN208231288U (en) | A kind of double end docking numerically-controlled machine tool |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200110 |
|
| RJ01 | Rejection of invention patent application after publication |