CN207946318U - The coaxial loading device of rotation fatigue - Google Patents
The coaxial loading device of rotation fatigue Download PDFInfo
- Publication number
- CN207946318U CN207946318U CN201820364982.6U CN201820364982U CN207946318U CN 207946318 U CN207946318 U CN 207946318U CN 201820364982 U CN201820364982 U CN 201820364982U CN 207946318 U CN207946318 U CN 207946318U
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- China
- Prior art keywords
- speed reducer
- shell
- connect
- loading device
- shaft
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- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 35
- 238000012360 testing method Methods 0.000 claims abstract description 28
- 230000005540 biological transmission Effects 0.000 claims abstract description 14
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 238000005259 measurement Methods 0.000 abstract description 4
- 238000001514 detection method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Abstract
The utility model provides rotation fatigue coaxial loading device, includes and the main swivel of input axis connection and the slave swivel being assemblied in inside main swivel；By one end and input axis connection, the connection shell that the other end opens up delivery outlet is constituted the main swivel；It is described from swivel include motor, the speed reducer being connect with motor；The speed reducer is fixed on the inside of connection shell, and speed reducer output shaft passes through the delivery outlet that connection shell opens up and external driven axis connection；The driven shaft is connect with test specimen one end, and the test specimen other end connects and composes enclosed cardan shaft test loop by transmission chain and input shaft.The coaxial loading device of rotation fatigue described in the utility model is, it can be achieved that torque measurement of the test specimen under rotary state, is conducive to improve measurement accuracy.
Description
Technical field
The utility model is related to torsional fatigue machine technical fields, the more particularly to coaxial loading device of rotation fatigue.
Background technology
Currently, when domestic reverse torsion machine experiment, the output end of usually fixed semiaxis/transmission shaft, to semiaxis/transmission
The input terminal of axis applies reciprocal torsional moment, realizes the detection to the torsional fatigue performance of structure.
But apply reciprocal torsional moment only by test specimen, it is tired that torsion of the test specimen under motion state can not be tested
Labor numerical value.For the high-speed rotating component such as transmission shaft, its torsional fatigue performance under high-speed motion state is measured, there is weight
The meaning wanted.
Utility model content
The utility model proposes a kind of coaxial loading devices of rotation fatigue, it is therefore intended that realizes test specimen under rotary state
Torque measurement improves measurement accuracy.
To realize above-mentioned technical purpose and the technique effect, the utility model solves by the following technical programs
State problem：
The coaxial loading device of rotation fatigue, include with the main swivel of input axis connection and be assemblied in inside main swivel from turning
Body；By one end and input axis connection, the connection shell that the other end opens up delivery outlet is constituted the main swivel；It is described from swivel include electric
Machine, the speed reducer being connect with motor；The speed reducer is fixed on the inside of connection shell, and speed reducer output shaft passes through connection shell to open up
Delivery outlet and external driven axis connection；The driven shaft is connect with test specimen one end, and the test specimen other end passes through transmission chain and input shaft
Connect and compose enclosed cardan shaft test loop.
The present apparatus is suitable on enclosed cardan shaft testing stand, is used as loading device therein.In closed transmission
In shaft experiment platform, driven shaft is connect with test specimen one end, and the test specimen other end connects and composes complete survey by transmission chain and input shaft
Try circuit.
When motor not output torque, input shaft drives connection shell, the decelerator body, motor casing rotation, output shaft to pass through biography
Dynamic chain obtains power, drives reductor shaft, motor output shaft rotation, rotating speed, steering are identical between input shaft and output shaft at this time
And without torque；
When motor output torque, it is solid that motor output shaft, speed reducer output shaft connect shell, the decelerator body, motor casing relatively
The entirety even constituted generates rotation in the same direction or reversed, in the same direction to the generation of the driven shaft made with speed reducer connect opposite connection shell
Or reversed relative rotation.Because of one of test specimen and driven axis connection, other end is by transmission chain and inputs axis connection, because
This, the both ends of test specimen generate relative rotation in the same direction or reversed, and generate corresponding torque.
It is loaded and unloaded for ease of mechanism, reaches preferable transmission effect.The connection shell includes the shell with input axis connection, is used
In the end cap of closing shell output end；The delivery outlet is opened in the end face of end cap, and speed reducer is fixed on the inside of end cap.
Further, the motor is stepper motor, AC servo motor.
Further, the end cap is fastenedly connected by screw in shell, decelerator shell by screw be fastenedly connected in
Rubbing surface of end cover.
Further, the input shaft is connected with shell, speed reducer output shaft and driven shaft is connect by shaft coupling.
Further, the speed reducer is double reduction machine.
The beneficial effects of the utility model：
The loading device of the utility model can make test specimen in high-speed motion on the basis of on enclosed cardan shaft testing stand
Under state simultaneously load torque, achieve the purpose that test its torsional fatigue performance under high-speed motion state.
Description of the drawings
Fig. 1 is the coaxial loading device structural schematic diagram of rotation fatigue；
Fig. 2 is the fundamental diagram that the coaxial loading device of rotation fatigue is applied to enclosed cardan shaft testing stand；.
Figure number identifies：1, input shaft, 2, connection shell, 2-1, shell, 2-2, end cap, 3, motor, 4, speed reducer, 5, driven
Axis, 6, shaft coupling, 7, test specimen, 8, transmission chain, 8-1, gear-box I, 8-2, detection device, 8-3, gear-box II.
Specific implementation mode
The utility model is described in further detail with reference to embodiments, but the utility model is not limited to these implementations
Example.
The coaxial loading device of rotation fatigue described in the present embodiment, as shown in Fig. 1, main body is by input shaft 1, connection shell
2, motor 3, speed reducer 4, driven shaft 5 are constituted.Connection shell 2 is made of shell 2-1 and end cap 2-2, the one end shell 2-1 and input shaft
1 is connected by shaft coupling 6, and the other end is sealed by being provided with the end cap 2-2 lids of through-hole.
As shown in Fig. 1, stepper motor 3, speed reducer 4 are assemblied in inside connection shell 2, and motor 3 is fixed on speed reducer 4, carries
For 4 operation power of speed reducer, speed reducer 4 is fixed on by screw on the inside of end cap 2-2, and motor 3, speed reducer 4, connection shell 2 are connected
Composition it is whole with identical rotating speed end cap 2-2 open up for 4 output shaft of speed reducer by delivery outlet.
As shown in Fig. 2,4 output shaft of speed reducer is connect by shaft coupling 6 with driven shaft 5, driven shaft 5 and 7 one end of test specimen
Connection, 7 other end of test specimen connect and compose closed circuit by transmission chain 8 and input shaft 1.Transmission chain 8 includes the gear at both ends
Case I8-1, gear-box II8-3, and the detection device 8-2 that is set between gear-box I8-1, gear-box II8-3.Gear-box
I8-1 connect the revolution power for obtaining driving whole device high-speed motion with driving device 9.
Embodiment operation principle is：
1, input shaft 1 works, and when the motor 3 that driving speed reducer 4 works does not work, connection shell 2 drives whole device without torsion
Square runs ω1=ω3, the relative rotation speed ω between motor output shaft and motor casing2=0.
2, input shaft 1 works, when the motor 3 that driving speed reducer 4 works works, the phase between motor output shaft and motor casing
To rotational speed omega2≠ 0, duration t, the output of speed reducer 4 generate speed discrepancy in the same direction or reversed with input shaft 1, duration t,
Make to generate fixed deflection angle θ between speed reducer 4 and driven shaft 5, that is, the cross section of the axis in speed reducer 4 and driven shaft
5 cross section relatively rotates, and generates corresponding torque, deflection angle θ=(ω2/ reduction ratio) t.
3, driven shaft 5 is connect with test specimen 7, and 7 other end of test specimen is connect by transmission chain 8 with input shaft 1, to entirely reverse
Chain generates torque everywhere in fatigue machine closed-loop drive, makes test specimen 7 while keeping same rotational speed with input shaft 1, loads torsion
Square.
Pass through the motor speed for driving speed reducer 4 to work so that the cross of the cross section and driven shaft 5 of the axis in speed reducer 4
Section relatively rotates corresponding angle, to obtain corresponding torque by detection device 8-2.
The embodiment of the utility model is described in detail above in association with attached drawing, but the utility model be not limited to it is described
Embodiment.Do not depart from the principles of the present invention and spirit in the case of to these embodiments carry out it is a variety of variation,
Modification, replacement and modification are still fallen in the scope of protection of the utility model.
Claims (6)
1. the coaxial loading device of rotation fatigue, it is characterised in that：Include the main swivel being connect with input shaft (1) and is assemblied in main turn
The slave swivel in internal portion；The main swivel is connect by one end with input shaft (1), and the other end opens up connection shell (2) structure of delivery outlet
At；It is described from swivel include motor (3), the speed reducer (4) being connect with motor (3)；The speed reducer (4) is fixed on connection shell
(2) inside, speed reducer (4) output shaft pass through the delivery outlet that connection shell (2) opens up to be connect with external driven shaft (5)；It is described driven
Axis (5) is connect with test specimen (7) one end, and test specimen (7) other end connects and composes closed biography by transmission chain (8) and input shaft (1)
Moving axis test loop.
2. the coaxial loading device of rotation fatigue according to claim 1, it is characterised in that：The connection shell (2) include with
The shell (2-1) of input shaft (1) connection, the end cap (2-2) for closing shell (2-1) output end；The delivery outlet is opened in
The end face of end cap (2-2), speed reducer (4) are fixed on the inside of end cap (2-2).
3. the coaxial loading device of rotation fatigue according to claim 2, it is characterised in that：The end cap (2-2) passes through spiral shell
It clenches to be connected and is connected to shell (2-1), the shell of speed reducer (4) is fastenedly connected by screw in end cap (2-2) medial surface.
4. the coaxial loading device of rotation fatigue according to claim 1, it is characterised in that：Motor (3) stepper motor,
AC servo motor.
5. the coaxial loading device of rotation fatigue according to claim 1, it is characterised in that：The input shaft (1) with connect
Shell (2), speed reducer (4) output shaft are connect with driven shaft (5) by shaft coupling (6).
6. the coaxial loading device of rotation fatigue according to claim 1, it is characterised in that：The speed reducer (4) is two-stage
Speed reducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820364982.6U CN207946318U (en) | 2018-03-16 | 2018-03-16 | The coaxial loading device of rotation fatigue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820364982.6U CN207946318U (en) | 2018-03-16 | 2018-03-16 | The coaxial loading device of rotation fatigue |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207946318U true CN207946318U (en) | 2018-10-09 |
Family
ID=63698130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820364982.6U Expired - Fee Related CN207946318U (en) | 2018-03-16 | 2018-03-16 | The coaxial loading device of rotation fatigue |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207946318U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109799169A (en) * | 2019-03-01 | 2019-05-24 | 同济大学 | A kind of revolution viscosity apparatus can be used for concrete |
-
2018
- 2018-03-16 CN CN201820364982.6U patent/CN207946318U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109799169A (en) * | 2019-03-01 | 2019-05-24 | 同济大学 | A kind of revolution viscosity apparatus can be used for concrete |
| CN109799169B (en) * | 2019-03-01 | 2021-08-06 | 同济大学 | Rotary viscometer for concrete |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181009 |