CN117823604A - Gear box for directly mounting torque sensor at high-speed shaft end - Google Patents
Gear box for directly mounting torque sensor at high-speed shaft end Download PDFInfo
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- CN117823604A CN117823604A CN202410248534.XA CN202410248534A CN117823604A CN 117823604 A CN117823604 A CN 117823604A CN 202410248534 A CN202410248534 A CN 202410248534A CN 117823604 A CN117823604 A CN 117823604A
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- speed shaft
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- 238000005096 rolling process Methods 0.000 claims description 12
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
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Abstract
The application discloses gearbox of torque sensor is directly hung to high-speed axle head belongs to gear box technical field, and this gear box include the gear box, set up in bearing frame in the gear box and install in high-speed axle in the bearing frame, the bearing frame is used for improving the support rigidity of high-speed axle, be provided with on the bearing frame and be used for realizing epaxial gear engagement driven breach of high-speed, high-speed axle with be provided with antifriction bearing between the bearing frame, high-speed axle one end passes the gear box is connected with the test piece, the bearing hole of gear box with the tang hole coaxial setting of test piece. The torque sensor has the advantages that the rotation precision, the support precision and the support rigidity of the high-speed shaft are improved, the dynamic characteristics of the rotor of the high-speed shaft are optimized, the critical rotation speed of a high-speed shaft system is effectively improved, and the problem that harmful resonance risks can be generated when the torque sensor is directly mounted at the shaft end of the high-speed shaft is solved.
Description
Technical Field
The application belongs to the technical field of gearboxes, and particularly relates to a gearbox with a torque sensor directly mounted at a high-speed shaft end.
Background
The high-speed shaft torsion measuring device of the conventional common gearbox adopts a high-speed shaft to be connected with a coupler, and the coupler is connected with a torsion measuring mechanism, so that a torsion measuring base is generally used. However, in this way, the torque sensor is located in the middle of the two bearing structures of the torque measuring base, so that there is power loss of the bearing, and the high-speed shaft torque measuring device with higher requirement on the torque measuring precision of the tested piece is in a form that the torque measuring base is not allowed to be used and has additional power loss. Based on the above, the torque sensor needs to be directly mounted at the shaft end of the high-speed shaft, but this will have a very adverse effect on the rotor dynamics of the high-speed shaft, and compared with the conventional form of the torque measuring base, the direct mounting of the torque sensor at the shaft end of the high-speed shaft has higher requirements on the cantilever length of the high-speed shaft, the rotation precision of the high-speed shaft, and especially the support precision and the support rigidity of the high-speed shaft.
Disclosure of Invention
The invention discloses a gearbox for directly mounting a torque sensor at a high-speed shaft end, which increases a high-precision bearing seat capable of realizing gear engagement transmission at a high-speed shaft supporting hole in a gearbox body, improves the critical rotation speed of a high-speed shaft system, and realizes that the torque sensor is directly hung at the high-speed shaft end without generating harmful resonance risk, thereby effectively solving at least one technical problem related to the background technology.
In order to achieve the above purpose, the technical scheme of the invention is as follows:
the utility model provides a direct torque sensor's of carrying gear box of high-speed axle head, includes the gear box, set up in bearing frame and one end rotatable install in the gear box in the bearing frame high-speed axle, the bearing frame is used for improving the supporting rigidity of high-speed axle, be provided with on the bearing frame and be used for realizing epaxial gear engagement driven breach of high-speed, the high-speed axle with be provided with antifriction bearing between the bearing frame, the other end of high-speed axle passes the gear box is connected with the quilt test piece, the bearing hole of gear box with the tang hole coaxial setting of quilt test piece.
As a preferable improvement of the present invention, the device further comprises a drum spline shaft for compensating deviation and structural deformation and for transmitting power, and the test piece is connected with the high-speed shaft through the drum spline shaft.
As a preferred improvement of the present invention, a torque sensor for measuring the torque of the high speed shaft is further included, the torque sensor being mounted on the high speed shaft between the bearing housing and the drum spline shaft.
As a preferred development of the invention, the high-speed shaft is connected to a high-speed shaft flange.
As a preferable improvement of the present invention, the number of the rolling bearings is four, and two by two sets of the rolling bearings are fitted at intervals on the high-speed shaft.
The beneficial effects of the invention are as follows:
according to the gear box, the bearing seat for finish machining treatment is arranged at the position of the high-speed shaft hole in the gear box body, the high-speed shaft is arranged in the bearing seat, the rotation precision and the supporting precision of the high-speed shaft are improved, the notch structure arranged on the bearing seat is used for giving out space for gear engagement under the condition that the strength and rigidity of the bearing seat are not damaged, other shafts of the gear box can be engaged with gear teeth on the high-speed shaft, the rotor dynamics of the high-speed shaft is optimized, in addition, the supporting rigidity of the high-speed shaft is further improved through the plurality of rolling bearings arranged between the bearing seat and the high-speed shaft, the critical rotation speed of a high-speed shaft system is improved, the torque sensor is directly mounted at the shaft end of the high-speed shaft without generating harmful resonance risks, and the gear box can stably run.
Drawings
For a clearer description of the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the description below are only some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art, wherein:
FIG. 1 is a schematic view of the overall structure of a gear box provided herein;
FIG. 2 is a schematic cross-sectional structural view of a gear box provided herein;
fig. 3 is a schematic structural view of a bearing seat provided in the present application;
in the figure: 1. a high-speed shaft; 2. a rolling bearing; 3. a bearing seat; 31. a notch; 4. a high speed shaft flange; 5. a torque sensor; 6. a drum spline shaft; 7. a tested piece; 8. a box body.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described in the following in conjunction with the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In addition, the technical solutions of the embodiments of the present invention may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the technical solutions, and when the technical solutions are contradictory or cannot be implemented, the combination of the technical solutions should be considered as not existing, and not falling within the scope of protection claimed by the present invention.
As shown in fig. 1 and 2, the invention provides a gearbox with a torque sensor directly mounted at a high-speed shaft end, which comprises a gearbox box body 8, a bearing seat 3 arranged in the gearbox box body 8 and a high-speed shaft 1 with one end rotatably mounted in the bearing seat 3, wherein the torque sensor 5 is mounted on the high-speed shaft 1.
The high-speed shaft 1 is arranged in the bearing seat 3, so that the supporting precision and the rotating precision of the high-speed shaft 1 are improved.
As shown in fig. 3, the bearing seat 3 is milled with a notch 31, and due to the design of the notch structure, under the condition that the strength and rigidity of the bearing seat 3 are not damaged and high-precision rotation precision and support precision are provided for the high-speed shaft 1, space can be reserved for gear engagement, and gear tooth engagement between other shafts in the gear box and the high-speed shaft 1 is realized.
Specifically, a plurality of rolling bearings 2 are arranged between the high-speed shaft 1 and the bearing seat 3, preferably, the number of the rolling bearings 2 is four, and the rolling bearings 2 are assembled on the high-speed shaft 1 in a group of intervals, the high-speed shaft 1 is rotatably assembled on the bearing seat 3 through the rolling bearings 2, and the rolling bearings 2 further improve the supporting rigidity of the high-speed shaft 1 under the cooperation of the bearing seat 3, so that the critical rotating speed of the high-speed shaft system is improved, and the torque sensor 5 is directly mounted on the shaft end of the high-speed shaft 1 without generating harmful resonance risks and can stably operate.
Further, the bearing seat 3 can be subjected to finish machining, and an inner hole of the bearing seat, which is in contact with the high-speed shaft, and an outer circle of the bearing seat, which is in contact with the gearbox body, are subjected to grinding treatment, so that the coaxiality and the surface roughness of the bearing seat are improved, and the rotation and the supporting precision of the high-speed shaft are correspondingly further improved.
The other end of the high-speed shaft 1 passes through the gear box body 8 and is connected with the tested piece 7, and preferably, a bearing hole on the gear box body 8 and a spigot hole of the tested piece 7 are coaxially arranged. Therefore, the high-speed shaft and the shaft of the tested piece or the shaft of the equipment can be connected in a short distance, the parts have good coaxiality, the angular displacement, the radial displacement and the axial displacement between the two shafts are small, and the rotating speed is high, which is tens of thousands of revolutions per minute. At this time, the two shafts are suitably connected by a crowned tooth type coupling which can be suitable for high rotation speed and good centering.
Specifically, the device also comprises a drum-shaped spline shaft 6, and the tested piece 7 is connected with the high-speed shaft 1 through the drum-shaped spline shaft 6. The drum spline shaft 6 realizes compensation of various deviations and structural deformations between the two transmission parts and transmits motion and power between them. The torque sensor 5 is located between the crowned spline shaft 6 and the bearing housing 3.
The high-speed shaft 1 is also connected with a high-speed shaft flange 4, and the high-speed shaft flange 4 is arranged between the bearing seat 3 and the torque sensor 5.
The beneficial effects of the invention are as follows:
according to the gear box, the bearing seat for finish machining treatment is arranged at the position of the high-speed shaft hole in the gear box body, the high-speed shaft is arranged in the bearing seat, the rotation precision and the supporting precision of the high-speed shaft are improved, the notch structure arranged on the bearing seat is used for giving out space for gear engagement under the condition that the strength and rigidity of the bearing seat are not damaged, other shafts of the gear box can be engaged with gear teeth on the high-speed shaft, the rotor dynamics of the high-speed shaft is optimized, in addition, the supporting rigidity of the high-speed shaft is further improved through the plurality of rolling bearings arranged between the bearing seat and the high-speed shaft, the critical rotation speed of a high-speed shaft system is improved, the torque sensor is directly mounted at the shaft end of the high-speed shaft without generating harmful resonance risks, and the gear box can stably run.
The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those of ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are also within the protection of the present application.
Claims (5)
1. The utility model provides a high-speed shaft end direct mount torque sensor's gear box, its characterized in that, including the gear box, set up in bearing frame and one end rotatable install in the high-speed shaft in the bearing frame, the bearing frame is used for improving the supporting rigidity of high-speed shaft, be provided with on the bearing frame and be used for realizing epaxial gear engagement driven breach of high-speed, the high-speed shaft with be provided with antifriction bearing between the bearing frame, the other end of high-speed shaft passes the gear box is connected with the test piece, the bearing hole of gear box with the tang hole coaxial setting of test piece.
2. The gearbox with the torque sensor directly mounted on the high-speed shaft end according to claim 1, further comprising a drum spline shaft for compensating deviation and structural deformation and transmitting power, wherein the tested piece is connected with the high-speed shaft through the drum spline shaft.
3. A high speed shaft end direct mount torque sensor gearbox according to claim 2 further comprising a torque sensor for measuring the high speed shaft torque, the torque sensor being mounted on the high speed shaft between the bearing housing and the drum spline shaft.
4. A gearbox with a torque sensor mounted directly on a high speed shaft end according to claim 1, wherein the high speed shaft is connected to a high speed shaft flange.
5. A gearbox with a torque sensor mounted directly on a high speed shaft end according to claim 1, wherein the number of rolling bearings is four, and two groups of rolling bearings are assembled on the high speed shaft at intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410248534.XA CN117823604A (en) | 2024-03-05 | 2024-03-05 | Gear box for directly mounting torque sensor at high-speed shaft end |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410248534.XA CN117823604A (en) | 2024-03-05 | 2024-03-05 | Gear box for directly mounting torque sensor at high-speed shaft end |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117823604A true CN117823604A (en) | 2024-04-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410248534.XA Pending CN117823604A (en) | 2024-03-05 | 2024-03-05 | Gear box for directly mounting torque sensor at high-speed shaft end |
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| Country | Link |
|---|---|
| CN (1) | CN117823604A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101929896A (en) * | 2009-06-24 | 2010-12-29 | 西北工业大学 | High-precision friction dynamic process testing device and method |
| KR101381739B1 (en) * | 2013-01-03 | 2014-04-07 | 전자부품연구원 | Testing device for planatary reduction gear |
| CN105716769A (en) * | 2016-04-11 | 2016-06-29 | 四川志方科技有限公司 | Starting torque testing device for RV reducer and implementation method of testing device |
| CN107036812A (en) * | 2017-05-26 | 2017-08-11 | 吉林大学 | A kind of electric vehicle gear box testboard bay |
| CN107576495A (en) * | 2017-09-23 | 2018-01-12 | 吉林大学 | Monodentate roller box tiltable homonymy torque machinery loads and the low-temperature test platform of compensation driving |
| CN112033592A (en) * | 2020-09-04 | 2020-12-04 | 东南大学 | Robot joint torque calibration test device |
| CN213541194U (en) * | 2020-08-21 | 2021-06-25 | 重庆永进重型机械成套设备有限责任公司 | High-rotating-speed gearbox for automobile gearbox test |
-
2024
- 2024-03-05 CN CN202410248534.XA patent/CN117823604A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101929896A (en) * | 2009-06-24 | 2010-12-29 | 西北工业大学 | High-precision friction dynamic process testing device and method |
| KR101381739B1 (en) * | 2013-01-03 | 2014-04-07 | 전자부품연구원 | Testing device for planatary reduction gear |
| CN105716769A (en) * | 2016-04-11 | 2016-06-29 | 四川志方科技有限公司 | Starting torque testing device for RV reducer and implementation method of testing device |
| CN107036812A (en) * | 2017-05-26 | 2017-08-11 | 吉林大学 | A kind of electric vehicle gear box testboard bay |
| CN107576495A (en) * | 2017-09-23 | 2018-01-12 | 吉林大学 | Monodentate roller box tiltable homonymy torque machinery loads and the low-temperature test platform of compensation driving |
| CN213541194U (en) * | 2020-08-21 | 2021-06-25 | 重庆永进重型机械成套设备有限责任公司 | High-rotating-speed gearbox for automobile gearbox test |
| CN112033592A (en) * | 2020-09-04 | 2020-12-04 | 东南大学 | Robot joint torque calibration test device |
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