CN214702576U - Shafting friction torque measuring instrument - Google Patents
Shafting friction torque measuring instrument Download PDFInfo
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- CN214702576U CN214702576U CN202120682032.XU CN202120682032U CN214702576U CN 214702576 U CN214702576 U CN 214702576U CN 202120682032 U CN202120682032 U CN 202120682032U CN 214702576 U CN214702576 U CN 214702576U
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- shafting
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Abstract
The utility model discloses a shaft system friction torque measuring instrument, which comprises a connecting shaft, a torque sensor, a pneumatic shaft, a bearing positioning disc, a precise main shaft and a workbench; the precise main shaft is arranged below the torque sensor, a rotary encoder is arranged at the lower end of the precise main shaft, and the precise main shaft is driven by a servo motor to rotate; the other end of the upper surface precision main shaft of the workbench is provided with the bearing positioning disc, the torque sensor is fixed on the connecting shaft, the connecting shaft is connected with the workbench, the shafting friction torque measuring instrument solves the problem of friction torque measurement of a precision shafting, and provides a basis for the influence of factors such as structural design, manufacturing and assembling process, lubrication and the like of an analysis shafting on the shafting friction torque, the utility model discloses can solve the problem of shafting friction torque measurement of various structures, and has stronger universality, the device has high detection precision and good stability, and the measured bearing is convenient to install and can be installed in any direction; the clamping and positioning of the bearing without thickness can be realized by adjusting the lifting adjustment of the positioning clamp.
Description
Technical Field
The utility model relates to a bearing detects technical field, specifically is a shafting friction torque measuring apparatu.
Background
The shafting friction torque measuring instrument is mainly used for measuring the starting friction torque of the precision bearing. Namely the maximum friction torque which needs to be overcome at the moment that the inner ring and the outer ring of the bearing start to rotate relatively from rest; the shafting friction torque measuring instrument is composed of a precision main shaft, a servo motor, a driver, a torque sensor, a rotary encoder, a computer, a data acquisition card and test analysis software.
A supporting precision spindle is arranged below the shafting friction torque measuring instrument, a rotary encoder is arranged at the lower end of the supporting precision spindle, and the supporting precision spindle is driven by a servo motor to rotate; the other end of the main shaft supported above the workbench is provided with a chuck for clamping a measured shaft system, a torque sensor is arranged above the measured shaft system, the torque sensor is fixed on the upright guide rail, and the upright guide rail is fixed on the workbench.
The moment signal measured by the moment sensor is converted, filtered, amplified and output to a data acquisition card controlled by a computer through a preposed detection circuit; the rotary encoder monitors the rotating position of the detected shaft system through an angle detection circuit and outputs the position to a data acquisition card controlled by a computer; the servo motor is input to a computer through the measured rotating speed of a measured shaft system, analysis is carried out through test analysis software, and the servo motor is controlled to be started through the test analysis software, so that the linkage relation between the servo motor and the computer is coordinated.
The existing shafting friction torque measuring instrument is only suitable for measuring the shafting friction torque with a single structure when in use; meanwhile, the conventional shafting friction torque measuring instrument has inconvenient installation of a measured bearing and low test efficiency.
Disclosure of Invention
The to-be-solved technical problem of the utility model is to overcome current defect, provide an axle system friction torque measuring apparatu, can solve the axle system friction torque measurement of various structures, the commonality is stronger, and this device detects the precision height, stability is good, is surveyed bearing simple to operate simultaneously, can the arbitrary direction installation, can effectively solve the problem in the background art.
In order to achieve the above object, the utility model provides a following technical scheme: a shaft system friction torque measuring instrument comprises a connecting shaft, a torque sensor, a pneumatic shaft, a bearing positioning disc, a precision main shaft and a workbench; the precise main shaft is arranged below the torque sensor, a rotary encoder is arranged at the lower end of the precise main shaft, and the precise main shaft is driven by a servo motor to rotate; the other end of the upper surface precision main shaft of the workbench is provided with a bearing positioning disc, a torque sensor is fixed on a connecting shaft, the connecting shaft is connected with the workbench, a pneumatic shaft is arranged at the lower end of the connecting shaft and comprises a cylindrical hollow outer shell, an air bag is arranged at the upper end of the inner side surface of the cylindrical hollow outer shell, a clamping block is connected with the outer side surface of the air bag and is clamped with a sliding groove arranged at the upper end of the outer side surface of the cylindrical hollow outer shell, a rectangular positioning rod is arranged at the middle part of the lower end of the inner side surface of the cylindrical hollow outer shell, a sleeve is sleeved at the lower end of the outer side surface of the rectangular positioning rod, an outer thread fixed block is rotatably connected at the lower end of the outer side surface of the sleeve and is rotatably connected with the lower end of the inner side surface of the cylindrical hollow outer shell, a supporting plate is rotatably connected at the upper end of the outer side surface of the sleeve, a pneumatic telescopic rod is arranged between the outer side surface of the supporting plate and the lower end of the sleeve, the bearing positioning disc comprises a hydraulic chuck, the lower surface of the hydraulic chuck is connected with an outer barrel through a positioning bolt, the inner side surface of the outer barrel is provided with a hydraulic telescopic mechanism, the upper end surface of the hydraulic telescopic mechanism is provided with a top block, and the input ends of the pneumatic telescopic rod and the hydraulic telescopic mechanism are electrically connected with the output end of an external power supply through an external control switch.
Furthermore, the quantity of layer board is for being no less than two, and the layer board evenly distributed that is no less than two is at telescopic lateral surface upper end.
Furthermore, a through groove is formed in one side, close to the supporting plate, of the lower end of the outer side face of the cylindrical hollow outer shell.
Furthermore, the lower end of the outer side surface of the outer cylinder body is provided with an annular mounting disc, and the upper surface of the annular mounting disc is provided with a mounting hole.
Furthermore, the top block is sleeved with the inner side surface of the hydraulic chuck.
Compared with the prior art, the beneficial effects of the utility model are that: this shafting friction torque measuring apparatu has following benefit:
1. the technology solves the problem of friction torque measurement of a precision shafting, and provides a basis for analyzing the influence of factors such as structural design, manufacturing and assembling processes, lubrication and the like of the shafting on the friction torque of the shafting;
2. the technology can solve the problem of shafting friction torque measurement of various structures, and has strong universality;
3. the device has high detection precision and good stability, and the detected bearing is convenient to install and can be installed in any direction;
4. the utility model discloses can be through the lift adjustment of adjusting positioning fixture, realize the centre gripping location of the bearing of unnecessary thickness.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view of the pneumatic shaft;
FIG. 3 is a schematic view of a bearing positioning plate;
FIG. 4 is a cross-sectional view of a bearing puck.
In the figure: 1 connecting shaft, 2 torque sensors, 3 pneumatic shafts, 4 bearing positioning disks, 5 precision spindles, 6 working tables, 7 ejector blocks, 8 hydraulic chucks, 9 positioning bolts, 10 annular mounting disks, 11 outer cylinders, 12 hydraulic telescopic mechanisms, 13 air bags, 14 clamping blocks, 15 rectangular positioning rods, 16 supporting plates, 17 sleeves, 18 external thread fixed blocks, 19 pneumatic telescopic rods and 20 cylindrical hollow outer shells.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: a shafting friction torque measuring instrument comprises a connecting shaft 1, a torque sensor 2, a pneumatic shaft 3, a bearing positioning disc 4, a precision main shaft 5 and a workbench 6; the precision spindle 5 is arranged below the torque sensor 2, and a rotary encoder is arranged at the lower end of the precision spindle 5 and is driven by a servo motor to support the precision spindle to rotate; the other end of the upper surface precision spindle 5 of the workbench 6 is provided with a bearing positioning disc 4, a torque sensor 2 is fixed on a connecting shaft 1, the connecting shaft 1 is connected with the workbench 6, a pneumatic shaft 3 is arranged at the lower end of the connecting shaft 1, the pneumatic shaft 3 comprises a cylindrical hollow outer shell 20, the upper end of the inner side surface of the cylindrical hollow outer shell 20 is provided with an air bag 13, the outer side surface of the air bag 13 is connected with a clamping block 14, the clamping block 14 is clamped with a sliding groove arranged at the upper end of the outer side surface of the cylindrical hollow outer shell 20, the clamping block 14 can be pushed out through the air bag 13, the inner ring of the bearing can be positioned by the clamping block 14, the middle part of the lower end of the inner side surface of the cylindrical hollow outer shell 20 is provided with a rectangular positioning rod 15, the lower end of the outer side surface of the rectangular positioning rod 15 is sleeved with a sleeve 17, the lower end of the outer side surface of the sleeve 17 is rotatably connected with an external thread fixed block 18, and the external thread fixed block 18 is rotatably connected with the lower end of the inner side surface of the cylindrical hollow outer shell 20, the lifting of the sleeve 17 can be adjusted through the external thread fixed block 18, the upper end of the outer side surface of the sleeve 17 is rotatably connected with the supporting plates 16, the number of the supporting plates 16 is not less than two, the not less than two supporting plates 16 are uniformly distributed at the upper end of the outer side surface of the sleeve 17, one side of the lower end of the outer side surface of the cylindrical hollow outer shell 20, which is close to the supporting plates 16, is provided with a through groove, a pneumatic telescopic rod 19 is arranged between the outer side surface of the supporting plates 16 and the lower end of the outer side surface of the sleeve 17, the supporting plates 16 can push out the supporting plates 16, a bearing to be measured can be supported and positioned through the supporting plates 16, the bearing positioning disc 4 comprises a hydraulic chuck 8, the lower surface of the hydraulic chuck 8 is connected with an outer cylinder body 11 through a positioning bolt 9, the lower end of the outer side surface of the outer cylinder body 11 is provided with an annular mounting disc 10, the upper surface of the annular mounting disc 10 is provided with a mounting hole, and the inner side surface of the outer cylinder body 11 is provided with a hydraulic telescopic mechanism 12, the up end of hydraulic telescoping mechanism 12 is equipped with kicking block 7, and the upper surface of adjusting kicking block 7 is equipped with and cup joints the through-hole that corresponds the setting with cylindricality cavity shell body 20, and kicking block 7 cup joints mutually with hydraulic chuck 8's medial surface, can adjust the lift of kicking block 7 through hydraulic telescoping mechanism 12, and pneumatic telescopic link 19 and hydraulic telescoping mechanism 12's input all are connected through external control switch and external power source's output electricity, the utility model discloses can be through the lift adjustment of adjusting positioning fixture, realize the centre gripping location of the bearing of unnecessary thickness.
When in use: an external power supply is switched on, when the tiny bearing is measured, firstly, a bearing to be measured is sleeved on the outer side surface of a cylindrical hollow outer shell 20, a supporting plate 16 is pushed out and unfolded to a horizontal position through a pneumatic telescopic rod 19, the lifting of a sleeve 17 is adjusted through an external thread fixed block 18, so that the center of an inner ring of the bearing to be measured is adjusted to a clamping block 14, an air bag 13 is inflated to push out the clamping block 14, the bearing is fixed through the clamping block 14, after the fixing is finished, the bearing to be measured is sent into a hydraulic chuck 8 through adjusting an external lifting support, the outer ring of the bearing is clamped and positioned through the hydraulic chuck 8, and then equipment can be started to measure; when the bearing is heavier, firstly, the bearing is arranged on the upper surface of the ejector block 7, the hydraulic telescopic mechanism 12 is adjusted to adjust the center of the outer ring of the bearing to be measured to the position of the hydraulic chuck 8, the outer ring of the bearing can be positioned through the hydraulic chuck 8, after the positioning is completed, the ejector block 7 descends, then the pneumatic shaft 3 is inserted into the inner ring of the bearing, the inner ring of the bearing is positioned through the pneumatic shaft 3, and then the starting device can be started to measure.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A shaft system friction torque measuring instrument comprises a connecting shaft (1), a torque sensor (2), a pneumatic shaft (3), a bearing positioning disc (4), a precise main shaft (5) and a workbench (6); the precision spindle (5) is arranged below the torque sensor (2), and a rotary encoder is arranged at the lower end of the precision spindle (5) and is driven by a servo motor to support the precision spindle to rotate; the other end of the accurate main shaft of upper surface (5) of workstation (6) sets up bearing positioning disk (4), and torque sensor (2) are fixed on connecting axle (1), and connecting axle (1) links to each other with workstation (6), and pneumatic shaft (3) set up the lower extreme at connecting axle (1), its characterized in that: the pneumatic shaft (3) comprises a cylindrical hollow outer shell (20), an air bag (13) is arranged at the upper end of the inner side of the cylindrical hollow outer shell (20), a clamping block (14) is connected to the outer side of the air bag (13), the clamping block (14) is clamped with a sliding groove arranged at the upper end of the outer side of the cylindrical hollow outer shell (20), a rectangular positioning rod (15) is arranged in the middle of the lower end of the inner side of the cylindrical hollow outer shell (20), a sleeve (17) is sleeved at the lower end of the outer side of the rectangular positioning rod (15), an external thread fixed block (18) is rotatably connected to the lower end of the outer side of the sleeve (17), a supporting plate (16) is rotatably connected to the upper end of the outer side of the sleeve (17), and a pneumatic telescopic rod (19) is arranged between the outer side of the supporting plate (16) and the lower end of the outer side of the sleeve (17), the bearing positioning disc (4) comprises a hydraulic chuck (8), the lower surface of the hydraulic chuck (8) is connected with an outer barrel (11) through a positioning bolt (9), the inner side surface of the outer barrel (11) is provided with a hydraulic telescopic mechanism (12), the upper end surface of the hydraulic telescopic mechanism (12) is provided with a top block (7), and the input ends of a pneumatic telescopic rod (19) and the hydraulic telescopic mechanism (12) are electrically connected with the output end of an external power supply through an external control switch.
2. The shafting friction torque measuring instrument according to claim 1, wherein: the number of the supporting plates (16) is not less than two, and the not less than two supporting plates (16) are uniformly distributed at the upper end of the outer side surface of the sleeve (17).
3. The shafting friction torque measuring instrument according to claim 1, wherein: and a through groove is formed in one side, close to the supporting plate (16), of the lower end of the outer side surface of the cylindrical hollow outer shell (20).
4. The shafting friction torque measuring instrument according to claim 1, wherein: the outer barrel (11) is characterized in that an annular mounting disc (10) is arranged at the lower end of the outer side face of the outer barrel, and mounting holes are formed in the upper surface of the annular mounting disc (10).
5. The shafting friction torque measuring instrument according to claim 1, wherein: the top block (7) is sleeved with the inner side surface of the hydraulic chuck (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120682032.XU CN214702576U (en) | 2021-04-02 | 2021-04-02 | Shafting friction torque measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120682032.XU CN214702576U (en) | 2021-04-02 | 2021-04-02 | Shafting friction torque measuring instrument |
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| Publication Number | Publication Date |
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| CN214702576U true CN214702576U (en) | 2021-11-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120682032.XU Active CN214702576U (en) | 2021-04-02 | 2021-04-02 | Shafting friction torque measuring instrument |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114323381A (en) * | 2021-12-10 | 2022-04-12 | 安徽灵轴科创有限公司 | Friction torque measuring device of rotary joint |
| CN114486026A (en) * | 2021-12-30 | 2022-05-13 | 江阴富茂电机技术有限公司 | Permanent magnet synchronous motor positioning torque testing device and torque output control method thereof |
-
2021
- 2021-04-02 CN CN202120682032.XU patent/CN214702576U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114323381A (en) * | 2021-12-10 | 2022-04-12 | 安徽灵轴科创有限公司 | Friction torque measuring device of rotary joint |
| CN114486026A (en) * | 2021-12-30 | 2022-05-13 | 江阴富茂电机技术有限公司 | Permanent magnet synchronous motor positioning torque testing device and torque output control method thereof |
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