CN110132589B - Test bench for testing service life of speed reducer with adjustable bending moment - Google Patents
Test bench for testing service life of speed reducer with adjustable bending moment Download PDFInfo
- Publication number
- CN110132589B CN110132589B CN201910517471.2A CN201910517471A CN110132589B CN 110132589 B CN110132589 B CN 110132589B CN 201910517471 A CN201910517471 A CN 201910517471A CN 110132589 B CN110132589 B CN 110132589B
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- speed reducer
- monitoring system
- pressure
- output shaft
- force application
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- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 57
- 238000012360 testing method Methods 0.000 title claims abstract description 27
- 238000005452 bending Methods 0.000 title claims abstract description 20
- 238000012544 monitoring process Methods 0.000 claims abstract description 33
- 230000008878 coupling Effects 0.000 claims abstract description 11
- 238000010168 coupling process Methods 0.000 claims abstract description 11
- 238000005859 coupling reaction Methods 0.000 claims abstract description 11
- 238000003466 welding Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 10
- 230000008569 process Effects 0.000 abstract description 10
- 230000003416 augmentation Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses a test bed for testing the service life of a speed reducer with adjustable bending moment, which comprises a motor, a support, a monitoring system, a radial force application device arranged between the support and the monitoring system, wherein an output shaft of the motor is connected with the speed reducer fixed on the support, and an output shaft of the speed reducer passes through the radial force application device and is connected with an output shaft of the monitoring system through a coupling. The invention has the advantages that the test bed can realize parameter analysis of the speed reducer under different bending moments, predicts the state and the vulnerable point in the actual use process, and is easier to master the performance of the speed reducer.
Description
Technical Field
The invention relates to the technical field of speed reducer testing, in particular to a test bed capable of testing the service life of a speed reducer with adjustable bending moment.
Background
The speed reducer is subjected to debugging before leaving the factory, the speed reducer is fixed at a tested end on a speed reducer testing platform, the speed reducer is driven to operate by inputting fixed rotating speed through an input end motor, data between input and output are compared by monitoring an output part of the speed reducer, and the performance of the speed reducer is analyzed by combining theoretical values of the speed reducer design, but the service life of the speed reducer is too single to realize parameter analysis under different bending moments, the state and the vulnerable point in the actual use process cannot be predicted, and the performance of the speed reducer is not easy to grasp.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: the existing speed reducer life test bed cannot analyze parameters under different bending moments during speed reducer performance monitoring, cannot predict states and vulnerable points in the actual use process, and cannot easily master the performance of the speed reducer.
In order to solve the technical problems, the invention provides the following technical scheme:
The utility model provides a test bench of moment of torsion adjustable test speed reducer life-span, includes motor, support and monitoring system, still includes the radial thrust augmentation device of setting between support and monitoring system, the speed reducer on the support is fixed to the output shaft of motor, the speed reducer output shaft passes through the output shaft of shaft coupling connection monitoring system after radial thrust augmentation device, through radial thrust augmentation device's setting, has realized the parameter analysis of speed reducer under different moment of torsion, predicts the state and the vulnerable point of in-service use, grasps the performance of speed reducer more easily.
Preferably, the radial stress application device comprises a stress application sleeve, a hydraulic interface, a pressure output ring, a positioning pin and a control system, wherein the hydraulic interface and the pressure output ring are symmetrically fixed on two sides of the stress application sleeve through the positioning pin, the hydraulic interface is connected with the control system through an oil pipe, an output shaft of the speed reducer penetrates through the stress application sleeve and is in sliding connection with the stress application sleeve, the pressure output ring moves towards the vertical central line of the stress application sleeve through pressure input of the control system, so that bending moment of the output shaft is reduced through changing of the stress application sleeve, state analysis under different bending moment is realized, and states and vulnerable points in the actual use process are predicted.
Preferably, the system further comprises a pressure input monitoring system, wherein the pressure input monitoring system is fixed on the oil pipe, the pressure input monitoring system is respectively connected with the oil pipe and the control system, whether the pressure of the oil pipe is the output pressure is monitored through the pressure input monitoring system, and if the output pressure is not met, the pressure is controlled through the pressure input monitoring system to adjust the control system.
Preferably, both ends of the outer wall of the stress application sleeve are conical, the middle is a flange, and at least two first threaded holes are symmetrically arranged on both sides of the flange.
Preferably, the inner wall of the pressure output ring is in an inner cone shape, the inner cone-shaped inner wall of the pressure output ring is matched with the cone-shaped outer wall of the stress application sleeve, and through holes with the number and positions corresponding to the first threaded holes on one side of the flange are formed in the pressure output ring.
Preferably, the front end of the locating pin is in a thread shape and is in threaded connection with the first threaded hole, the rear end of the locating pin is in a smooth cylinder shape, is in sliding connection with the hydraulic interface and the pressure output ring, and extends out of the outer end of the pressure night interface, and the number of the locating pins is equal to that of the first threaded holes.
Preferably, the speed reducer further comprises an adjustable inertia device arranged between the coupler and the monitoring system, the adjustable inertia device comprises an inertia disc and weights, the weights are fixed on the side face of the inertia disc, and the state analysis of the speed reducer is controlled through the arrangement of the weights on the inertia disc.
Preferably, a plurality of second threaded holes are formed in the adjustable inertia disc, bolts are welded on the weights, the weights are connected to one side of the inertia disc through the bolts and the second threaded holes in a threaded mode, different inertia is changed through combining different weights, state analysis of the speed reducer under different inertia is achieved, and states and vulnerable points in the actual use process are predicted.
Preferably, the horizontal central lines of the output shaft of the motor, the radial force application device, the adjustable inertia device and the output shaft of the monitoring system are the same horizontal central line, so as to realize the requirement of coaxiality.
Preferably, the coupling is a rigid coupling having a certain load-carrying capacity for shear forces.
Compared with the prior art, the invention has the beneficial effects that:
1. Through the arrangement of the radial force application device and the adjustable inertia device, the parameter analysis of the speed reducer under different bending moments is realized, the state and the vulnerable point in the actual use process are predicted, and the performance of the speed reducer is easier to master.
2. The pressure output ring moves towards the vertical center line of the stress application sleeve by controlling the pressure input of the system, so that the bending moment of the speed reduction and output shaft is changed by the stress application sleeve, and the state analysis under different bending moments is realized.
3. Different inertia is changed by combining different weights, so that state analysis of the speed reducer under different inertia is realized.
Drawings
FIG. 1 is a schematic structural diagram of a bending moment adjustable test bench for testing the service life of a speed reducer according to a first embodiment of the invention;
FIG. 2 is a schematic view of a radial force device according to a first embodiment of the present invention;
FIG. 3 is a schematic view of a radial force device according to a second embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a third embodiment of the present invention;
fig. 5 is a schematic structural diagram of a third inertia adjustable device according to an embodiment of the invention.
Detailed Description
In order to facilitate the understanding of the technical scheme of the present invention by those skilled in the art, the technical scheme of the present invention will be further described with reference to the accompanying drawings.
The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
Example 1
Referring to fig. 1, this embodiment discloses a test bench of adjustable test speed reducer life-span of moment, including motor 1, support 2 and monitoring system 3, still including setting up radial thrust augmentation device 4 between support 2 and monitoring system 3, the output shaft of motor 1 fixes the speed reducer 5 on support 2, the output shaft of speed reducer 5 passes through the output shaft of monitoring system 3 through shaft coupling 6 after radial thrust augmentation device 4, through radial thrust augmentation device 4's setting, has realized the parameter analysis of speed reducer 5 under different moment, predicts state and the vulnerable point in the in-service use, and the performance of speed reducer 5 is mastered more easily.
Referring to fig. 2, the radial force application device 4 includes a force application sleeve 41, a hydraulic interface 42, a pressure output ring 43, a positioning pin 44 and a control system 45, wherein an output shaft of the speed reducer 5 passes through the force application sleeve 41 and is slidably connected with the force application sleeve 41, two ends of an outer wall of the force application sleeve 41 are tapered, a flange is arranged in the middle, at least two first threaded holes 411 are symmetrically arranged on two sides of the flange to ensure that the hydraulic interface 42 and the pressure output ring 43 can be fixed, an inner wall of the pressure output ring 43 is in an inner tapered shape, an inner tapered wall of the pressure output ring 43 is matched with the tapered outer wall of the force application sleeve 41, through holes 431 with the number and positions corresponding to the first threaded holes 411 on one side of the flange are arranged on the pressure output ring 43, the front end of the positioning pin 44 is in a threaded shape, and the rear end of the positioning pin 44 is in a smooth cylindrical shape, the front end of the locating pin 44 sequentially passes through the hydraulic interface 42 and the through hole 431 of the pressure output ring 43 to be in threaded connection with the first threaded hole 411 on the stress sleeve 41, the rear end of the locating pin is in sliding connection with the hydraulic interface 42 and the pressure output ring 43 and extends out of the outer end of the pressure night interface 42, the hydraulic interface 42 and the pressure output ring 43 are symmetrically fixed on two sides of the stress sleeve 41, the number of the locating pins 44 is equal to that of the first threaded holes 411, the hydraulic interface 42 is connected with the control system 45 through the oil pipe 46, the pressure is transmitted to the hydraulic interface 42 through the pressure input of the control system 45 through the oil pipe 46, the pressure output ring 43 only can horizontally move towards the vertical central line direction of the stress sleeve 41 under the action of the locating pin 44, so that the bending moment of the output shaft of the speed reducer 5 is changed through changing the radial force of the stress sleeve 41, the state analysis under different bending moments is realized, the state and the vulnerable points in the process are monitored through the monitoring system 3, the performance of the speed reducer 5 is more easily grasped.
Furthermore, the coupling 6 is a rigid coupling, and a certain bearing capacity for shearing force is ensured.
The working principle of the first embodiment is as follows: the speed reducer 5 to be monitored is arranged on the support 2 and is connected with the motor 1, an output shaft of the speed reducer 5 passes through the stress application sleeve 41 and is connected to the coupler 6, the other end of the coupler is connected to the monitoring system 3, the installation is completed, then according to actual requirements, pressure is input through the control system 45 and is transmitted to the hydraulic interface 42 through the oil pipe 46, the pressure output ring 43 can only move horizontally towards the vertical central line direction of the stress application sleeve 41 under the action of the positioning pin 44, so that the bending moment of the output shaft of the speed reducer 5 is changed by changing the radial force of the stress application sleeve 41, and then the state analysis under different bending moments is carried out through the monitoring system 3, so that the state and the vulnerable point in the actual use process are predicted, and the performance of the speed reducer 5 is easier to master.
Example two
Referring to fig. 3, in the first embodiment, the radial force applying device 4 further includes a pressure input monitoring system 47, the pressure input monitoring system 47 is fixed on the oil pipe 46, the pressure input monitoring system 47 is connected with the oil pipe 46 and the control system 45 respectively, on the basis of the first embodiment, whether the pressure of the oil pipe 46 is the output pressure is monitored by the pressure input monitoring system 47, if the output pressure is not satisfied, the output pressure is controlled by adjusting the control system 45 by the pressure input monitoring system 47, so that the output pressure is the pressure input by the hydraulic interface 42.
Example III
Referring to fig. 4 to 5, the difference between this embodiment and the second embodiment is that the test stand further includes an adjustable inertia device 7 disposed between the coupling 6 and the monitoring system 3, the adjustable inertia device 7 includes an inertia disc 71 and weights 72, a plurality of second threaded holes 711 are disposed on the inertia disc 71, the apertures of the second threaded holes 711 may be the same or different, bolts 721 are welded on the weights 72, the weights 72 are screwed with the second threaded holes 711 through bolts 721 on the other side of the inertia disc 71 far away from the coupling 6, in this embodiment, the apertures of the second threaded holes 711 are the same, 5 circles are disposed, the number of the second threaded holes 711 is 10, and are uniformly distributed, according to actual requirements, different numbers of weights 72 are used to be fixed on the inertia disc 71 under different conditions, the conditions encountered by the speed reducer 5 in actual use are satisfied by using different inertia, the state and the vulnerable point in the actual use process are further predicted, and the performance of the speed reducer 5 is easier to master.
Furthermore, the horizontal central lines of the output shaft of the motor, the radial force application device, the adjustable inertia device and the output shaft of the monitoring system are the same horizontal central line, so that the coaxiality requirement is realized.
The working principle of the third embodiment is as follows: on the basis of the second embodiment, weights 72 with different numbers are fixed on the inertia disc 71 under different conditions through the arrangement of the adjustable inertia device 7, the conditions of the speed reducer 5 encountered in actual use are met by utilizing different inertias for analysis, the state and the vulnerable points in the actual use process are further predicted, and the performance of the speed reducer 5 is easier to master.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
The above-described embodiments merely represent embodiments of the invention, the scope of the invention is not limited to the above-described embodiments, and it is obvious to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention.
Claims (4)
1. The utility model provides a moment of flexure adjustable test speed reducer life-span's test bench, includes motor, support and monitoring system, its characterized in that: the motor is connected with the speed reducer, and the output shaft of the speed reducer is connected with the output shaft of the monitoring system through the coupler after passing through the radial force application device;
The radial force application device comprises a force application sleeve, a hydraulic interface, a pressure output ring, a positioning pin and a control system, wherein the hydraulic interface and the pressure output ring are symmetrically fixed on two sides of the force application sleeve through the positioning pin, the hydraulic interface is connected with the control system through an oil pipe, and an output shaft of the speed reducer penetrates through the force application sleeve and is in sliding connection with the force application sleeve;
The system also comprises a pressure input monitoring system, wherein the pressure input monitoring system is fixed on the oil pipe and is respectively connected with the oil pipe and the control system;
the two ends of the outer wall of the stress application sleeve are conical, the middle of the outer wall of the stress application sleeve is provided with a flange, and at least two first threaded holes are symmetrically formed in two sides of the flange;
The inner wall of the pressure output ring is in an inner cone shape, the inner cone-shaped inner wall of the pressure output ring is matched with the cone-shaped outer wall of the stress application sleeve, and the pressure output ring is provided with through holes with the number and the positions corresponding to the first threaded holes on one side of the flange;
The front end of the locating pin is in a thread shape and is in threaded connection with the first threaded hole, the rear end of the locating pin is in a smooth cylinder shape, is in sliding connection with the hydraulic interface and the pressure output ring, and extends out of the outer end of the pressure night interface, and the number of the locating pins is equal to that of the first threaded holes;
the adjustable inertia device comprises an inertia disc and weights, and the weights are fixed on the side faces of the inertia disc.
2. The bending moment adjustable test bed for testing the service life of a speed reducer according to claim 1, wherein: be equipped with a plurality of second screw holes on the inertia dish, welding bolt on the weight, the weight passes through bolt and second screw hole threaded connection in one side of inertia dish.
3. The bending moment adjustable test bed for testing the service life of a speed reducer according to claim 2, wherein: the horizontal central lines of the output shaft of the motor, the radial force application device, the adjustable inertia device and the output shaft of the monitoring system are all the same horizontal central line.
4. The bending moment adjustable test bed for testing the service life of a speed reducer according to claim 1, wherein: the coupling is a rigid coupling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910517471.2A CN110132589B (en) | 2019-06-14 | 2019-06-14 | Test bench for testing service life of speed reducer with adjustable bending moment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910517471.2A CN110132589B (en) | 2019-06-14 | 2019-06-14 | Test bench for testing service life of speed reducer with adjustable bending moment |
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| CN110132589A CN110132589A (en) | 2019-08-16 |
| CN110132589B true CN110132589B (en) | 2024-05-17 |
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| CN113640604B (en) * | 2021-08-12 | 2024-08-20 | 四川航天烽火伺服控制技术有限公司 | Electric steering engine comprehensive test device |
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| CN110132589A (en) | 2019-08-16 |
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