CN209818657U - Torque loader - Google Patents
Torque loader Download PDFInfo
- Publication number
- CN209818657U CN209818657U CN201920395468.3U CN201920395468U CN209818657U CN 209818657 U CN209818657 U CN 209818657U CN 201920395468 U CN201920395468 U CN 201920395468U CN 209818657 U CN209818657 U CN 209818657U
- Authority
- CN
- China
- Prior art keywords
- shaft
- output
- speed reducing
- reducing mechanism
- planet
- 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.)
- Active
Links
Landscapes
- Retarders (AREA)
Abstract
The utility model provides a torque loader, which comprises a speed reducer, a driving motor, a shell assembly and a base; the speed reducer comprises two stages of speed reduction transmission mechanisms, wherein the first stage of speed reduction transmission mechanism is an N-type small-tooth-difference speed reduction transmission mechanism, the second stage of speed reduction transmission mechanism is a 3K-type planetary transmission speed reduction mechanism, the combination of the two speed reduction transmission mechanisms has extremely high reliability, larger overload is allowed, the load retention rate is high, and the speed reducer is suitable for a working mode that a torque loader quickly loads and protects the load in a short time.
Description
Technical Field
The utility model relates to a loading test bench field, more specifically relates to a moment of torsion loader.
Background
The torque loader is a key product for providing torque for a loading test bed, is connected into a mechanical power closed test bed in series through a coupler, rotates forwards and backwards in two directions at the same rotating speed along with the test bed, and can realize static, dynamic, forward and backward stepless random loading and unloading through an internal loading motor.
The torque loader realizes speed reduction and torque increase through the internal transmission device to load a test piece, and the performance of the internal transmission device directly influences the performance of the torque loader; most of the transmission devices, namely the speed reducers, used by the torque loaders in the prior art are combination of harmonic speed reduction structures and planetary gear speed reduction structures, and the speed reducers have the defects of poor bearing capacity, incapability of overloading, failure caused by exceeding the deformation bearing capacity of flexible elements of the harmonic speed reducers, irreversible failure and short service life; the two-stage speed reducer with the small tooth difference structure is adopted independently, and the maximum rotating speed of the torque loader is limited due to the fact that the rotational inertia of the small tooth difference structure is large; meanwhile, for the torque loader, the required torque needs to be loaded quickly and the load is kept in the working process, and the 2K-H type planetary gear speed reducing mechanism (namely, NGW type) adopted in the prior art has the characteristics of small transmission ratio and unsuitability for short-term work of the torque loader.
Disclosure of Invention
The utility model discloses to prior art's defect and shortcoming, provided a reduction gear that moment of torsion loader used, this reduction gear includes two-stage speed reduction drive mechanism, the few tooth difference speed reduction drive mechanism of first order N type, second level 3K type planetary transmission reduction mechanism.
The utility model discloses specific technical scheme as follows:
a torque loader comprises a speed reducer, a driving motor, a shell assembly, an input shaft, an output shaft and a base, and is characterized in that the speed reducer consists of a primary small-tooth-difference speed reducing mechanism and a secondary planetary gear train speed reducing mechanism; the input end of the primary speed reducing mechanism with small tooth difference is connected with a driving motor, the output end of the primary speed reducing mechanism with small tooth difference is connected with the input end of the secondary planetary gear train speed reducing mechanism, and the output end of the secondary planetary gear train speed reducing mechanism is connected with an output shaft;
the primary few-tooth-difference speed reducing mechanism comprises a planet wheel, an eccentric shaft, an inner gear ring and an output shaft disc; the two planet gears are arranged, are respectively arranged at two shaft necks of the eccentric shaft and are meshed with the inner gear ring; the output shaft disc is provided with a plurality of pin shafts, is inserted into pin holes on the planet gears and is connected with the output shaft disc and the planet gears;
the secondary planetary gear train speed reducing mechanism comprises a planetary gear, a planetary carrier, a planetary shaft, a sun gear shaft, a fixed gear ring and an output gear ring; the planet wheel is a duplex planet wheel and is arranged on the planet carrier through a planet shaft; one side of the planet wheel is externally engaged with the sun wheel shaft, and the other side of the planet wheel is respectively engaged with the fixed gear ring and the output gear ring to jointly form a 3K-type planetary transmission mechanism.
Furthermore, the output shaft disc of the primary small tooth difference speed reducing mechanism is connected with a sun wheel shaft of the secondary planetary gear train speed reducing mechanism.
Furthermore, the inner gear ring of the primary speed reducing mechanism with less tooth difference is the inner surface of the casing of the primary speed reducing mechanism with less tooth difference.
Furthermore, the shell assembly comprises a speed reducer casing, a driving motor casing, an input end cover seat and an output end cover seat; the parts are connected by bolts and cylindrical pins.
Furthermore, the machine base is provided with two bearing supporting points; the input end cover seat and the output end cover seat are respectively arranged on the bearing supporting points.
Furthermore, a flange plate is arranged at the end part of the input end cover seat.
Further, the driving motor comprises a motor assembly, a brake and a collector ring; the collector ring is arranged on the input end cover seat and is connected with the motor assembly and the brake through electric wires.
Further, an output gear ring in the secondary planetary gear train is connected with the output shaft through a spline.
Further, the tail end of the output shaft is marked with scales.
Furthermore, a dial is fixed at the end part of the output end cover base.
The beneficial effects of the utility model reside in that:
(1) the utility model provides a reduction gear that moment of torsion loader used includes the few tooth difference speed reduction drive mechanism of first order N type, second grade 3K type planetary transmission reduction gear, and the combination of these two kinds of transmission speed reduction structures has high reliability, allows great overload, and the load retention rate is high, and has higher rotational speed, can realize the quick loading moment of torsion of short time.
(2) The utility model provides an inside spare part cold processing of moment of torsion loader is convenient, all adopts ordinary gear machine tool, does not need special lathe processing, and the manufacturability is fabulous, does not have too high requirement to spare part material and thermal treatment.
(3) The utility model provides a moment of torsion loader output is provided with the calibrated scale, is equipped with the scale on the output shaft equally, and the accessible is observed the scale and is obtained the torsion angle, calculates the moment of torsion of having exported.
Drawings
Fig. 1 is a schematic structural diagram of a torque loader provided by the present invention;
fig. 2 is an external view of a reducer of the torque loader according to the present invention.
Detailed Description
The invention is further described with reference to the following figures and examples. Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
As shown in fig. 1, the present embodiment provides a torque loader, which includes a speed reducer, a driving motor, a housing assembly, and a base, where the speed reducer and the driving motor are installed in the housing assembly; the shell component comprises a primary speed reducer casing 1, a secondary speed reducer casing 2, a driving motor casing 3, an input end cover seat 4 and an output end cover seat 5; the speed reducer consists of a primary small-tooth-difference speed reducing mechanism and a secondary planetary gear train speed reducing mechanism which are respectively arranged in a primary speed reducer casing 1 and a secondary speed reducer casing 2; the input end of the first-stage speed reducing mechanism with small tooth difference is connected with a driving motor, the output end of the first-stage speed reducing mechanism is connected with the input end of the second-stage planetary gear train speed reducing mechanism, and the output end of the second-stage planetary gear train speed reducing mechanism is connected with an output shaft;
as shown in fig. 2, the primary few-tooth-difference speed reducing mechanism comprises a planet wheel 11, an eccentric shaft 12, an inner gear ring 14 and an output shaft disc 15; the planet gears 11 are arranged in two, are respectively arranged at two shaft necks of the eccentric shaft 12 and are meshed with the inner gear ring 14; a plurality of pin shafts 13 are arranged on the output shaft disc 15, inserted into pin holes on the planet gears 11 and connected with the output shaft disc 15 and the planet gears 11;
the secondary planetary gear train speed reducing mechanism comprises a planetary gear 22, a planetary carrier 25, a planetary shaft 26, a sun gear shaft 21, a fixed gear ring 23 and an output gear ring 24; the planet wheel 22 is a duplex planet wheel and is arranged on a planet carrier 25 through a planet shaft 26; one side of the planet wheel 22 is externally meshed with the sun wheel shaft 21, and the other side of the planet wheel is respectively internally meshed with the fixed gear ring 23 and the output gear ring 22 to form a 3K type planet transmission mechanism.
The main working process of the speed reducer is as follows: the current collecting ring 33 sleeved on the input end cover seat 4 is connected with the driving motor component 31 and the brake 32 thereof through wires; an external power supply is introduced, the driving motor enters a working state, a rotor and a rotating shaft in the components start to rotate, the rotating shaft is connected with a first-stage eccentric shaft 12, namely, the power provided by the driving motor is input into a first-stage speed reducing mechanism through a first-stage eccentric shaft 20, two eccentric shaft necks symmetrical to an axis form a rotating wall on the first-stage eccentric shaft 12, two first-stage planet wheels 11 are symmetrically arranged at the two eccentric shaft necks of the first-stage eccentric shaft 12, the circumferential positions are mutually staggered by 180 degrees, the rotation of the first-stage eccentric shaft 12 drives the first-stage planet wheels 11 to be meshed with a first-stage gear ring 14 and to do plane motion, namely, the first-stage planet wheels 11 do circular translation motion around the axis of the first-stage inner gear ring 14 and do rotation motion around the axis of the first-stage inner gear ring 14, the first-stage inner, the first-stage planetary gear 11 performs low-speed autorotation motion around the first-stage eccentric shaft 12 to achieve the purpose of speed reduction; a plurality of pin shafts 13 are mounted on a first-level output shaft disc 15, each pin shaft 13 is provided with two pin shaft sleeves 16 and a gasket, the gasket is positioned between the two pin shaft sleeves 16 and the two first-level planet gears 11 and is inserted into pin holes of the two first-level planet gears 11 together, so that a first-level small tooth difference speed reducing mechanism is completely formed, the diameter of the pin hole in each planet gear is about two times of the eccentricity greater than the outer diameter of the pin shaft sleeve, and in the moving process, the pin shaft sleeves are always in contact with the inner walls of the pin holes of the planet gears, so that the autorotation of the first-level planet gears 11 is transmitted to the first.
Then, the power output by the primary output shaft disc 15 is directly input to the secondary sun wheel shaft 21 through spline connection, the secondary planet wheel 22 is a duplex planet wheel, and two parts of the duplex planet wheel are designed to be in the same specification size as one another in order to facilitate processing and assembly; the secondary sun gear shaft 21, the secondary planet gears 22, the fixed ring gear 23 and the output ring gear 24 form a 3K type (i.e., NGWN type) planetary transmission mechanism. The secondary planet gears 22 are mounted on a secondary planet carrier 25 through a secondary planet shaft 26, and the secondary sun gear shaft 21 and the secondary planet gears 22 perform external meshing motion; the fixed gear ring 23 is fixedly arranged on one side, close to the input end, of the secondary planetary gear train speed reducing mechanism, the secondary planetary gear 22 serves as a duplex planetary gear, a gear on one side, close to the input end, of the secondary planetary gear train speed reducing mechanism is also in inner meshing motion with the fixed gear ring 23, the secondary planetary gear train 25 is enabled to be self-transmitted, and a pair of bearings are arranged between two ends of the secondary planetary gear train 23 and the casing respectively to form rotating support matching; the secondary planet gear 22 rotates by itself, and revolves around the rotation center of the secondary planet carrier 25 due to the rotation of the secondary planet carrier 25, so that the gear of the secondary planet gear 22 close to the output end and the output gear ring 10 perform inner meshing motion, and the output gear ring 24 performs self-transmission along with the inner meshing motion; the output gear ring 24 is connected with an output shaft 52 through a spline so as to output power, the output shaft 52 is connected to one shaft end of the test system, and the flange plate 42 connected with the input end cover seat 4 through the spline is connected to the other shaft end of the test system; the smaller torque input by the driving motor generates larger closed torque between two shaft ends of the test system through the torque amplification effect of the two-stage speed reducer, and a rotation angle difference is generated between the output shaft 52 and the flange 42, and the rotation angle difference is the torsion angle of a middle shaft system of the test system.
An external bearing supporting point is arranged on the excircle of the input end cover seat 4, another bearing supporting point is arranged on the excircle of the output end cover seat 5, each part of the shell assembly is arranged on the machine base 6 through the two external bearing supporting points, each part of the shell assembly is connected through bolts and cylindrical pins, and the shell assembly can play a role in transmitting torque while being fixed, namely, each shell assembly and the flange plate 42 can synchronously rotate around an axis; the end of the output end cover base 5 is provided with a dial scale, the end of the output shaft 52 is also marked with scales, and the relative change of the scales of the output shaft 52 and the end of the output shaft is observed under the working state, so that the rotation angle difference between the output shaft 52 and the flange 42, namely the torsion angle can be obtained, and the magnitude of the loaded torque can be obtained.
As mentioned above, the speed reducing mechanism of the torque loader provided by the utility model comprises two stages, wherein the first stage is an N-type small tooth difference speed reducing transmission mechanism, and the second stage is a 3K-type planetary transmission speed reducing mechanism, wherein the small tooth difference speed reducing transmission mechanism has compact structure, large transmission ratio range, high efficiency, stable operation and strong bearing capacity; compared with a common 2K-H type planetary transmission speed reducing mechanism, the 3K type planetary transmission speed reducing mechanism has a much larger transmission ratio range and stronger bearing capacity, and is more suitable for a working mode that a torque loader quickly loads and protects loads in a short time; meanwhile, the combination of the two types of speed reducing transmission mechanisms has extremely high reliability, allows large overload, has high load retention rate, and can still keep high rotating speed under the condition of heavy load.
The above embodiments are merely further illustrative and explanatory of the present invention, and are not restrictive of the invention. Any modification, equivalent replacement, and improvement made by those skilled in the art based on the above-mentioned inventive concept shall be included in the protection scope of the claims of the present invention.
Claims (10)
1. A torque loader comprises a speed reducer, a driving motor, a shell assembly, an input shaft, an output shaft and a base, and is characterized in that the speed reducer and the driving motor are arranged in the shell assembly; the speed reducer consists of a primary small-tooth-difference speed reducing mechanism and a secondary planetary gear train speed reducing mechanism; the input end of the primary speed reducing mechanism with small tooth difference is connected with a driving motor, the output end of the primary speed reducing mechanism with small tooth difference is connected with the input end of the secondary planetary gear train speed reducing mechanism, and the output end of the secondary planetary gear train speed reducing mechanism is connected with an output shaft;
the primary few-tooth-difference speed reducing mechanism comprises a planet wheel, an eccentric shaft, an inner gear ring and an output shaft disc; the two planet gears are arranged, are respectively arranged at two shaft necks of the eccentric shaft and are meshed with the inner gear ring; the output shaft disc is provided with a plurality of pin shafts, is inserted into pin holes on the planet gears and is connected with the output shaft disc and the planet gears;
the secondary planetary gear train speed reducing mechanism comprises a planetary gear, a planetary carrier, a planetary shaft, a sun gear shaft, a fixed gear ring and an output gear ring; the planet wheel is a duplex planet wheel and is arranged on the planet carrier through a planet shaft; one side of the planet wheel is externally engaged with the sun wheel shaft, and the other side of the planet wheel is respectively internally engaged with the fixed gear ring and the output gear ring to jointly form a 3K-type planet transmission mechanism.
2. The torque loader of claim 1, wherein the output shaft disc of the primary small tooth difference reduction mechanism is connected with the sun wheel shaft of the secondary planetary gear train reduction mechanism.
3. The torque loader of claim 1, wherein the inner ring gear of the primary speed reduction mechanism is an inner surface of a casing of the primary speed reduction mechanism.
4. The torque loader of claim 1, wherein the housing assembly comprises a reducer case, a drive motor case, an input end cover mount, and an output end cover mount, the parts being connected by bolts and cylindrical pins.
5. The torque loader of claim 4, wherein the housing is provided with two bearing support points; the input end cover seat and the output end cover seat are respectively arranged on the bearing supporting points.
6. The torque loader of claim 5 wherein said input end cap seat end is provided with a flange.
7. The torque loader of claim 1, wherein the drive motor comprises a motor assembly and brake, a slip ring; the collector ring is arranged on the input end cover seat and is connected with the motor assembly and the brake through electric wires.
8. The torque loader of claim 1 wherein the output ring gear of the two stage planetary gear set is splined to the output shaft.
9. The torque loader of claim 8, wherein the output shaft end is marked with a scale.
10. The torque loader of claim 4, wherein a dial is affixed to the output end cap base end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920395468.3U CN209818657U (en) | 2019-03-27 | 2019-03-27 | Torque loader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920395468.3U CN209818657U (en) | 2019-03-27 | 2019-03-27 | Torque loader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209818657U true CN209818657U (en) | 2019-12-20 |
Family
ID=68877208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920395468.3U Active CN209818657U (en) | 2019-03-27 | 2019-03-27 | Torque loader |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209818657U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114001966A (en) * | 2021-11-11 | 2022-02-01 | 中国船舶重工集团公司第七0三研究所 | Test bed for starting and performance test of gas turbine casing |
| CN114294379A (en) * | 2021-11-23 | 2022-04-08 | 上海宇航系统工程研究所 | Large-torque-to-weight-ratio driving assembly for space mechanism |
-
2019
- 2019-03-27 CN CN201920395468.3U patent/CN209818657U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114001966A (en) * | 2021-11-11 | 2022-02-01 | 中国船舶重工集团公司第七0三研究所 | Test bed for starting and performance test of gas turbine casing |
| CN114001966B (en) * | 2021-11-11 | 2023-12-08 | 中国船舶重工集团公司第七0三研究所 | Test bed for starting and performance test of fuel engine casing |
| CN114294379A (en) * | 2021-11-23 | 2022-04-08 | 上海宇航系统工程研究所 | Large-torque-to-weight-ratio driving assembly for space mechanism |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100593653C (en) | Planetary reducer with inner ring gear output | |
| CN110154752A (en) | Vehicle propulsion system | |
| CN209818657U (en) | Torque loader | |
| CN100458217C (en) | Single inputting and double outputting planetary speed reducer | |
| CN209818656U (en) | Speed reducer for torque loader | |
| CN109630649B (en) | Planetary reduction gear | |
| CN111043284A (en) | Electric drive axle of double-stage planetary gear reducer | |
| CN201080990Y (en) | Two ends output movable teeth reduction driver | |
| CN210821790U (en) | Two-stage speed reduction coaxial electric driving device | |
| US11827091B2 (en) | Vehicle transmission apparatus and vehicle | |
| CN100591952C (en) | Pyramidal face friction transmission reduction box | |
| CN114252264B (en) | A planetary row needle roller bearing test device and method | |
| CN210265810U (en) | Planetary gear mechanism | |
| US10935113B2 (en) | Multi-stage planetary roller power transmission device | |
| CN211501495U (en) | Secondary parallel shaft planetary reducer | |
| CN207229681U (en) | Coaxial line gear-box and freewheel clutch integrating device are used in double motive power drivings | |
| CN110630699A (en) | Serial-type few tooth difference speed reduction transmission | |
| CN221647523U (en) | Sun gear hollow wheel side planetary reducer | |
| CN207378089U (en) | A kind of speed reducer with non-return device | |
| CN110470469A (en) | Ultra-large type in-line gears case mechanical output totally enclosed type testing stand | |
| CN206958176U (en) | A kind of transmission device, hub unit, wheel heel teeth wheel apparatus and dumper | |
| CN221647544U (en) | Two-stage series multi-wave oscillating tooth speed reducer | |
| CN113915319B (en) | Speed increasing gear box of wind generating set | |
| CN218863190U (en) | Planetary reducer special for ball mill | |
| CN216715126U (en) | Hub reduction gear |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |