CN220323484U - Test device for measuring parameters of miniature motor reducer - Google Patents
Test device for measuring parameters of miniature motor reducer Download PDFInfo
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- CN220323484U CN220323484U CN202321500252.1U CN202321500252U CN220323484U CN 220323484 U CN220323484 U CN 220323484U CN 202321500252 U CN202321500252 U CN 202321500252U CN 220323484 U CN220323484 U CN 220323484U
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- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 53
- 238000012360 testing method Methods 0.000 title claims abstract description 19
- 238000004804 winding Methods 0.000 claims abstract description 26
- 238000005259 measurement Methods 0.000 claims description 14
- 238000003825 pressing Methods 0.000 claims description 8
- 230000000694 effects Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
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- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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Abstract
The utility model provides a test device for measuring parameters of a miniature motor reducer, which comprises: the fixing device is used for fixing the miniature motor reducer; the rope winding disc is fixed on an output shaft of the miniature motor speed reducer, and is connected with a rope; the rotating speed measuring device is arranged in front of the disc surface of the rope winding disc and is used for measuring the rotating speed of the rope winding disc; the tension meter is fixed right above the rope winding disc; one end of the rope is connected with the rope winding disc, the other end of the rope is hung with an object with set weight, and the middle of the rope is hung on a hook of the tension meter. The device can not only measure rated voltage, current and the like of the miniature motor speed reducer under the no-load condition, but also can be combined with two or more modules to simulate and measure load current, rotating speed and torque under the working condition, thereby achieving the effect of one multipurpose.
Description
Technical Field
The utility model belongs to the technical field of motor measurement, and particularly relates to a test device for measuring parameters of a miniature motor reducer.
Background
Miniature motor reducers are used in a wide range of medical devices such as dental drills, bone drills, micropumps, respirators, and the like. No-load torque, rotation speed, current, load torque, rotation speed, current and service life are important parameters of the miniature motor reducer, and the service performance of the miniature motor reducer in medical equipment is directly affected, so that the detection of the miniature motor reducer after the miniature motor reducer is manufactured is important and necessary.
At present, the measurement of all performance data of the miniature motor reducer stays at a stage of being relatively original and crude, the measurement device is not standard, the measurement data has larger fluctuation, and the measurement of multiple performance data needs to be clamped for multiple times and the site is replaced for multiple times. Different miniature motor speed reducers have different working conditions, different loads, different working currents, different voltages, different rotating speeds and different torques, and the original measuring mode cannot meet the conditions.
Disclosure of Invention
The present utility model aims to solve the above problems, and provides a test device for measuring parameters of a speed reducer of a micro motor, comprising:
the fixing device is used for fixing the miniature motor reducer;
the rope winding disc is fixed on an output shaft of the miniature motor speed reducer, and is connected with a rope;
the rotating speed measuring device is arranged in front of the disc surface of the rope winding disc and is used for measuring the rotating speed of the rope winding disc; the tension meter is fixed right above the rope winding disc;
the upper end of the rope is connected with the hook of the tension meter, and after the middle of the rope is wound on the rope winding disc, the other end of the rope is hung with an object with set weight.
In one possible embodiment, an annular groove is provided on the outer edge of the rope winding disc, and the rope is wound on the annular groove.
In one possible embodiment, the object is a weight.
In one possible embodiment, the rotational speed measuring device is connected to a three-phase power supply.
In one possible embodiment, the tension meter is fixed by a first clamping device.
In one possible embodiment, the clamping device comprises a fixed plate, a vertical telescopic rod fixed on the fixed plate, a cross rod fixed on the vertical telescopic rod, and the tension meter fixed on an end plate on the free end of the cross rod.
In one possible embodiment, the fixing device comprises a fixing base and a top cover, a concave cavity is formed on the fixing base, lateral pressing plates are symmetrically arranged in the concave cavity, two lateral pressing plates are respectively connected with an adjusting nut, and the adjusting nuts are connected to the fixing base in a threaded mode; the top cover is fixed on the fixed base through a fastener so as to press the top of the miniature motor reducer.
In one possible embodiment, a shaft sleeve is fixed on the central axis of the rope winding disc, the shaft sleeve is sleeved on the output shaft of the miniature motor speed reducer, and a threaded hole for installing a locking screw is formed in the shaft sleeve.
The utility model has simple integral structure and high integration level, and can realize the measurement of clamping multiple performance data at one time. The error caused by repeated clamping in the measuring process of the miniature motor speed reducer is greatly reduced; meanwhile, the flexible miniature motor reducer clamp also has the function of measuring various miniature motor reducers with different outer diameters, meets the outer diameter requirement of a certain range of variation, and reduces the manufacturing consumption of the clamp; the distance between the rotating speed measuring instrument and the output shaft of the miniature motor speed reducer is fixed, so that the fluctuation error of manual measurement by a human is reduced, the output shaft is amplified by using a wire spool, and the measurement error caused by the smaller diameter of the motor output shaft is reduced; the miniature motor speed reducer can measure rated voltage, current and the like of the miniature motor speed reducer under the no-load condition, can also be combined with two or more modules to simulate and measure load current, rotating speed and torque under the working condition, and achieves the effect of one multipurpose.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present utility model.
Fig. 2 is a schematic overall view of the structure of the fixing clamp for the miniature motor reducer.
Fig. 3 is a partial schematic view of the structure of the fixing clamp for the miniature motor reducer.
FIG. 4 is a schematic view of a tension meter clamp according to the present utility model.
Fig. 5 is a schematic illustration of the rope connection of the present utility model with a rope reel.
Fig. 6 is another schematic representation of the rope connection of the present utility model with a rope reel.
The text labels in the figures are expressed as: 1. a platform; 2. a clamping device; 3. a fixing device; 4. a tension meter; 5. a rope winding disc; 6. a positioning device; 7. a rotational speed measuring device; 8. a miniature motor reducer; 9. a relay; 10. a three-phase power supply; 11. a fixed base; 12. an adjusting nut; 13. a pressing plate; 14. and a top cover.
Detailed Description
In order that those skilled in the art may better understand the technical solutions of the present utility model, the following detailed description of the present utility model with reference to the accompanying drawings is provided for exemplary and explanatory purposes only and should not be construed as limiting the scope of the present utility model.
As shown in fig. 1, the utility model provides a testing device for measuring parameters of a miniature motor reducer, which comprises a fixing device 3, a rope winding disc 5, a rotating speed measuring device 7 and a tension meter 4. The fixing device is used for fixing the miniature motor speed reducer 8, and the rope winding disc 5 is fixed on an output shaft of the miniature motor speed reducer 8 and rotates along with the output shaft. The rotation speed measuring device 7 is arranged in front of the rope reel 5 for measuring the rotation speed of the rope reel. The rotational speed measuring device 7 can be an electronic rotational speed measuring device or an inductive rotational speed measuring device. A tension meter 4 is fixed in the area right above the rope winding disc 5, a rope is connected to the rope winding disc 5, one end of the rope is connected with the rope winding disc 5, the other end of the rope is suspended with an object with set weight, and the middle of the rope is suspended on a hook of the tension meter 4.
The specific measurement is as follows:
(1) and measuring the idle current and the idle rotation speed. When the object is not hung, the miniature motor reducer 8 to be detected is connected with the corresponding three-phase power supply 10 by a wire, and is set to be rated voltage, and the relay 9 is used as a protection switch. And the no-load rotating speed of the miniature motor reducer 8 can be obtained by reading the rotating speed measuring instrument, and the no-load current of the miniature motor reducer 8 can be obtained according to the value of the three-phase power supply 10.
(2) And measuring the load current and the load rotating speed. According to the load condition specified by the micro motor reducer 8 to be tested, selecting an object with corresponding weight, wherein the object can be a weight, one end of a long string of the weight is connected, the other end of the long string is wound on a sleeve disc, the middle of the long string is hung on a hook of the tension meter 4, and the weight is in a vertical suspension state and is waiting for the rest of the weight. The miniature motor reducer 8 is connected with the three-phase power supply 10 according to the specification, and the motor is started to obtain corresponding load current and load rotating speed.
(3) Load torque measurement. The tensiometer is connected with the rope for the rope coiling dish, namely the rope winds the recess department of rope coiling dish one round, and one end is connected with the tensiometer 4, and the article is hung to one end, guarantees that the rope is in the state of stretching out and drawing back. At this time, the object is only connected with the rope and is in a suspended state, so that the weight of the object is ensured to be loaded on the string. At this time, assume that the tension meter measures a reading of f 1 The weight at the other end of the string has the mass of m, and the force F=mg-F on the loading and sleeving disc at the moment can be calculated 1 . Assuming that the diameter of the groove on the corresponding hub is d, the torque value t=f×d2= (mg-F) ×d2 can be calculated by the following formula. A schematic diagram of a roping around a rope reel is shown in fig. 5.
(4) Further, two tensiometers 4 may be used, that is, the second tensiometer is fixed below the test stand in the same vertical plane as the first tensiometer, and the two tensiometers are connected by a rope, so that the rope is in a tight state during the test, and other operations are the same as the measurement method described above. The load of the output shaft of the motor can be measured by reading the difference value of the tension meter, the mode can also be used for adjusting the value of the tension meter 4 for measuring various data of the motor under different load conditions for multiple times, and a rope winding and coiling schematic diagram is shown in fig. 6.
(5) The service life of the miniature motor reducer is measured, the miniature motor reducer 8 is fixed according to the above, the three-phase power supply 10 and the relay 9 are connected at the same time, the on-off time interval of the relay 9 is set, and the on-off time interval is counted by a counter, so that the no-load use times of the miniature motor reducer 8, namely the use times of the miniature motor reducer 8, are obtained.
Further, according to the load torque and rotation speed measuring mode, the load is added on the miniature motor reducer to be measured. The service life of the motor is prolonged. The number of load uses of the motor can be measured.
Referring to fig. 2-3, in some possible embodiments, the fixing device 3 comprises a fixing base 11 and a top cover 14, a cavity is formed on the fixing base, lateral pressing plates 13 are symmetrically arranged in the cavity, two lateral pressing plates 13 are respectively connected with an adjusting nut 12, and the adjusting nut 12 is connected on the fixing base 11 in a threaded manner; the top cover 14 is fixed to the fixed base by a fastener to press the top of the micro motor reducer. The miniature motor reducer 8 adopts the external diameter location, fixes miniature motor reducer 8 on the anchor clamps, in order to prevent to slide in the measurement process, and main part anchor clamps left and right sides bore threaded hole, and cooperation clamp plate 13 presss from both sides tight miniature motor reducer 8 of multiple specification, and the anchor clamps top compresses tightly the motor at cooperation top cap 14.
Alternatively, the pressing plate 13 may be provided in an arc shape.
Referring to fig. 4, optionally, the tension meter 4 is secured by a clamping device 2. The clamping device 2 comprises a fixed plate, a vertical telescopic rod fixed on the fixed plate, a cross rod fixed on the vertical telescopic rod, and a tension meter fixed on an end plate on the free end of the cross rod. The tension meter clamp can be connected in a two-stage telescopic manner, the height can be adjusted according to measurement requirements, and the measurement requirements of the miniature motor speed reducers with various specifications are met. The test bed is positioned in the middle of the test bed, and can be used for placing loads of various specifications.
Referring to fig. 1, in some possible implementations, the rotation speed measuring device 7 is mounted on the positioning device 6, the positioning device 6 is fixed at a certain prescribed distance in front of the fixing device 3 of the micro motor reducer 8, and the rope winding disc 5 is fixed at the front end of the output shaft of the micro motor reducer 8.
Referring to fig. 1, the motor service life measuring module mainly comprises a variable frequency power supply and a relay, is arranged at the upper right corner of the test stand, is provided with a dust cover, and can cover the power supply and the relay.
Optionally, a hole is left in the platform 1, which is used for the penetration of the weight.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The principles and embodiments of the present utility model have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present utility model and its core ideas. The foregoing is merely illustrative of the preferred embodiments of this utility model, and it is noted that there is objectively no limit to the specific structure disclosed herein, since numerous modifications, adaptations and variations can be made by those skilled in the art without departing from the principles of the utility model, and the above-described features can be combined in any suitable manner; such modifications, variations and combinations, or the direct application of the inventive concepts and aspects to other applications without modification, are contemplated as falling within the scope of the present utility model.
Claims (8)
1. A test device for measuring parameters of a miniature motor reducer, comprising:
the fixing device is used for fixing the miniature motor reducer;
the rope winding disc is fixed on an output shaft of the miniature motor speed reducer, and is connected with a rope;
the rotating speed measuring device is arranged in front of the disc surface of the rope winding disc and is used for measuring the rotating speed of the rope winding disc;
the tension meter is fixed right above the rope winding disc;
the upper end of the rope is connected with the hook of the tension meter, and after the middle of the rope is wound on the rope winding disc, the other end of the rope is hung with an object with set weight.
2. The test device of claim 1, wherein an annular groove is provided on the outer edge of the rope reel, and the rope is wound around the annular groove.
3. The test device of claim 1, wherein the object is a weight.
4. The test device of claim 1, wherein the rotational speed measurement device is connected to a three-phase power supply.
5. The test device of claim 1, wherein the tension meter is secured by a clamping device.
6. The test device of claim 5, wherein the clamping device comprises a fixed plate, a vertical telescopic rod fixed on the fixed plate, a cross rod fixed on the vertical telescopic rod, and the tension meter fixed on an end plate on the free end of the cross rod.
7. The test device according to claim 1, wherein the fixing device comprises a fixing base and a top cover, a concave cavity is formed on the fixing base, lateral pressing plates are symmetrically arranged in the concave cavity, two lateral pressing plates are respectively connected with an adjusting nut, and the adjusting nuts are connected to the fixing base in a threaded manner; the top cover is fixed on the fixed base through a fastener so as to press the top of the miniature motor reducer.
8. The test device according to claim 1, wherein a shaft sleeve is fixed on the central axis of the rope winding disc, the shaft sleeve is sleeved on the output shaft of the miniature motor speed reducer, and a threaded hole for installing a locking screw is formed in the shaft sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321500252.1U CN220323484U (en) | 2023-06-13 | 2023-06-13 | Test device for measuring parameters of miniature motor reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321500252.1U CN220323484U (en) | 2023-06-13 | 2023-06-13 | Test device for measuring parameters of miniature motor reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220323484U true CN220323484U (en) | 2024-01-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321500252.1U Active CN220323484U (en) | 2023-06-13 | 2023-06-13 | Test device for measuring parameters of miniature motor reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220323484U (en) |
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2023
- 2023-06-13 CN CN202321500252.1U patent/CN220323484U/en active Active
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