CN115683607A - Accurate right angle speed reducer torsional rigidity and return difference detection device - Google Patents
Accurate right angle speed reducer torsional rigidity and return difference detection device Download PDFInfo
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- CN115683607A CN115683607A CN202211371216.XA CN202211371216A CN115683607A CN 115683607 A CN115683607 A CN 115683607A CN 202211371216 A CN202211371216 A CN 202211371216A CN 115683607 A CN115683607 A CN 115683607A
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Abstract
The invention relates to the technical field of precision gear performance detection, and discloses a precision right-angle speed reducer torsional rigidity and return difference detection device which comprises a first frame body, a right-angle speed reducer arranged on the first frame body, a second frame body, a rotary table arranged on a first rotary shaft and a detector used for detecting the torsional rigidity of the right-angle speed reducer, wherein the first end of the right-angle speed reducer is provided with the first rotary shaft, the first end of the second frame body is arranged on the first frame body, the second end of the second frame body is provided with an angle encoder fixedly connected with the first rotary shaft, the angle encoder is used for collecting deflection angle data of the right-angle speed reducer, the rotary table is provided with a first force arm, one end, far away from the rotary table, of the first force arm is provided with a first collision part, the detector is placed below the first collision part, the requirement for meeting the right-angle precision planetary speed reducer testing is met, the use of a spiral transmission mechanism is avoided, and the detection efficiency is improved.
Description
Technical Field
The invention relates to the technical field of precision gear performance detection, in particular to a device for detecting torsional rigidity and return difference of a precision right-angle speed reducer.
Background
The system for testing return difference and torsional rigidity of a precision speed reducer, disclosed in the prior art 201410019777.2, is mainly characterized in that a spiral transmission mechanism is used for applying a load, the applied load is displayed on a display screen of a digital display tension meter in real time, a corresponding corner signal is acquired by a circular grating sensor, the corner signal is transmitted to a computer through a data acquisition card, a test software system acquires data through a multi-communication protocol, and required corner data is acquired by using a plurality of data processing methods.
However, the detection structure cannot meet the test requirement of the right-angle precision planetary reducer, and the used screw transmission mechanism is complex, inconvenient to operate and low in detection efficiency.
Disclosure of Invention
The invention mainly aims to solve the technical problems that the prior art cannot meet the test requirement of a right-angle precision planetary reducer, and the used screw transmission mechanism is complex, inconvenient to operate and low in detection efficiency.
The invention provides a device for detecting torsional rigidity and return difference of a precision right-angle speed reducer, which comprises a first frame body, a right-angle speed reducer arranged on the first frame body, a second frame body, a rotary table arranged on the first rotary table and a detector used for detecting the torsional rigidity of the right-angle speed reducer, wherein a first rotary shaft is arranged at the first end of the right-angle speed reducer, a first end of the second frame body is arranged on the first frame body, an angle encoder fixedly connected with the first rotary shaft is arranged at the second end of the second frame body, the angle encoder is used for collecting deflection angle data of the right-angle speed reducer, a first force arm is arranged on the rotary table, a first abutting part is arranged at one end, far away from the rotary table, of the first force arm, and the detector is placed below the first abutting part, wherein when the rotary table rotates and drives the first force arm to swing, the first abutting part abuts against the detector.
Furthermore, the precision right-angle speed reducer torsional rigidity and return difference detection device further comprises a third frame body, a positioning hole is formed in the third frame body, a second rotating shaft is arranged at the second end of the right-angle speed reducer, and one end, far away from the right-angle speed reducer, of the second rotating shaft penetrates into the positioning hole in a rotating mode.
Furthermore, the device for detecting torsional rigidity and return difference of the precision right-angle speed reducer further comprises a connecting piece, a limiting hole is formed in the first support body, a limiting groove is formed in the first end of the second support body, and the connecting piece penetrates into the limiting groove and the limiting hole in sequence and fixes the second support body on the first support body.
Furthermore, the detector comprises a supporting seat, a hydraulic cylinder arranged on the supporting seat and a force sensor used for abutting against the first abutting part, wherein the force sensor is arranged at one end, far away from the supporting seat, of the hydraulic cylinder.
Furthermore, be equipped with the second arm of force that sets up with first arm of force symmetry on the carousel, the one end that the carousel was kept away from to second arm of force is equipped with second conflict portion, the detector is equipped with two, two the detector is placed respectively in the below of first conflict portion and second conflict portion.
The invention has the beneficial effects that: compared with the prior art, the invention provides a device for detecting torsional rigidity and return difference of a precision right-angle speed reducer, which comprises a first frame body, a right-angle speed reducer installed on the first frame body, a second frame body, a rotary table installed on the first rotary shaft and a detector used for detecting the torsional rigidity of the right-angle speed reducer, wherein a first rotary shaft is arranged at the first end of the right-angle speed reducer, a first end of the second frame body is installed on the first frame body, an angle encoder fixedly connected with the first rotary shaft is arranged at the second end of the second frame body, the angle encoder is used for collecting deflection angle data of the right-angle speed reducer, a first force arm is arranged on the rotary table, a first abutting part is arranged at one end, far away from the rotary table, of the first force arm, the detector is placed below the first abutting part, the test requirement on meeting the right-angle precision planetary speed reducer is met, the use of a spiral transmission mechanism is avoided, and the detection efficiency is improved.
Drawings
FIG. 1 is a schematic structural diagram according to a first embodiment of the present invention;
FIG. 2 is a schematic structural diagram according to a second embodiment of the present invention;
FIG. 3 is a front view of a second embodiment of the present invention;
fig. 4 is an exploded view of a connection structure of a first frame and a second frame according to an embodiment of the present invention;
FIG. 5 is a hysteresis graph of an embodiment of the present invention.
Reference numbers in the figures: 100 first frame bodies, 101 limit holes, 200 right-angle speed reducers, 201 first rotating shafts, 202 second rotating shafts, 300 second frame bodies, 301 angle encoders, 302 limit grooves, 400 rotating discs, 401 first force arms, 402 first collision parts, 403 second force arms, 404 first collision parts, 500 detectors, 501 supporting seats, 502 hydraulic cylinders, 503 force sensors, 600 third frame bodies, 601 positioning holes and 700 connecting pieces.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, a device for detecting torsional rigidity and return difference of a precision right-angle speed reducer comprises a first frame body 100, a right-angle speed reducer 200 installed on the first frame body 100, a second frame body 300, a rotary table 400 installed on a first rotary shaft 201, and a detector 500 for detecting torsional rigidity of the right-angle speed reducer 200, wherein a first rotary shaft 201 is arranged at a first end of the right-angle speed reducer 200, a first end of the second frame body 300 is installed on the first frame body 100, an angle encoder 301 fixedly connected with the first rotary shaft 201 is arranged at a second end of the second frame body 300, the angle encoder 301 is used for acquiring deflection angle data of the right-angle speed reducer 200, a first force arm 401 is arranged on the rotary table 400, a first abutting portion 402 is arranged at one end, away from the rotary table 400, of the first force arm 401, and the detector 500 is arranged below the first abutting portion 402, wherein when the rotary table 400 rotates and drives the first force arm 401 to swing, the first force arm 402 and the detector 500 abuts against the detector 500.
Specifically, in the first embodiment, a first frame 100 is provided with a fixing slot for mounting the right-angle reducer 200, the circumference of the fixing slot is uniform and matched with the hole site on the flange structure of the right-angle reducer 200, the right-angle reducer 200 is stably mounted on the first frame 100, the first end of the right-angle reducer 200 is an output end which passes through the fixing slot of the first frame 100 and is fixedly connected with the rotary table 400, wherein the rotary table 400 is a fixed connection piece on the first rotary shaft 201 which passes through the fixing slot of the first frame 100, when the right-angle reducer 200 is activated to rotate the first rotary shaft 201, the rotary table 400 rotates along with the first rotary shaft, the first end of the second frame 300 is fixedly connected to the first frame 100, the second end extends to the end of the first rotary shaft 201, and the second end is provided with an angle encoder 301 fixedly connected with the end of the first rotary shaft 201, wherein the rotary table 400 extends a first force arm 401 on one side, the end position of the first force arm 401 is provided with a first collision part 402 colliding with the detector 500, when the right-angle speed reducer 200 is activated, the first force arm 401 swings along with the rotation of the first rotating shaft 201, wherein the angle encoder 301 records the deflection angle of the first rotating shaft 201 in real time, the detector 500 directly obtains the pressure pressed by the deflection of the first force arm 401, and finally obtains the hysteresis curve graph in fig. 5, so that the deflection angle of the rotating shaft of the right-angle speed reducer 200 under different torques can be rapidly detected, because the hysteresis curve graph in fig. 5 also has the deflection test in the opposite direction of the rotating shaft, in the second embodiment, the rotating disc 400 is provided with a second force arm 403 symmetrically arranged with the first force arm 401, one end of the second force arm 403 far away from the rotating disc 400 is provided with a second collision part, the detectors 500 are provided with two, and the two detectors 500 are respectively placed below the first collision part 402 and the second collision part, as shown in fig. 2 and 3, when the first rotating shaft 201 rotates in the forward and reverse directions, the first force arm 401 or the second force arm 403 collides with the corresponding lower detecting member 500 to detect the corresponding torque data.
Further, the device for detecting torsional rigidity and backlash of the precision right-angle speed reducer 200 further comprises a third frame body 600, a positioning hole 601 is formed in the third frame body 600, a second rotating shaft 202 is arranged at the second end of the right-angle speed reducer 200, and one end, far away from the right-angle speed reducer 200, of the second rotating shaft 202 rotatably penetrates into the positioning hole 601.
Specifically, since the detection device of the present application is the right angle reducer 200, the input end of the detection device, that is, the second rotating shaft 202 of the second end, in order to ensure the normal detection of the output end of the right angle reducer 200, the third frame body 600 is disposed at the second rotating shaft 202, and the third frame body 600 is provided with the positioning hole 601 connected to the rotation of the second rotating shaft 202, of course, a driving member not identified in the drawings, that is, a driving member for providing a power source to the input end of the right angle reducer 200, which can be erected on the third frame body 600, and the third frame body 600 is used in cooperation with the first frame body 100, so as to elevate and stably hold the whole right angle reducer 200 on the frame body, and it can be ensured that after the driving member provides the power source, when the rotary disc 400 on the output end of the right angle reducer 200 rotates, the situation that the first force arm 401 and the second force arm on the rotary disc 400 are not affected by the shaking of the right angle reducer 200, and the torque arm 403 on the rotary disc 400 respectively collides with the detector 500, thereby affecting the data of the final detection.
Further, the device for detecting torsional rigidity and return difference of the precision right-angle speed reducer 200 further comprises a connecting piece 700, a limiting hole 101 is formed in the first frame body 100, a limiting groove 302 is formed in the first end of the second frame body 300, the connecting piece 700 penetrates into the limiting groove 302 and the limiting hole 101 in sequence, and the second frame body 300 is fixed on the first frame body 100.
Referring to fig. 4, the connecting member 700 is specifically a screw structure, the limiting groove 302 on the second frame 300 is specifically a similar slot structure and is provided with two, the connecting member 700 and the limiting hole 101 are also provided with two corresponding, the first end of the second frame 300 is placed on the first frame 100, the limiting groove 302 is matched with the corresponding limiting hole 101, and the first end of the second frame 300 is pressed on the first frame 100 through the connecting member 700, so that the second frame 300 is fixed on the first frame 100, wherein according to the length of the output end of the right-angle speed reducer 200, the distance between the second end of the second frame 300 and the output end of the right-angle speed reducer 200 can be controlled by adjusting the pressing position of the connecting member 700 on the limiting groove 302, so as to determine the optimal fixing position of the angle encoder 301 and the first rotating shaft 201, and achieve a better detection effect.
Further, the detector 500 includes a supporting base 501, a hydraulic cylinder 502 mounted on the supporting base 501, and a force sensor 503 for contacting with the first contact part 402, wherein the force sensor 503 is mounted on an end of the hydraulic cylinder 502 far from the supporting base 501.
Specifically, the detection system based on matlab connected with the device is externally arranged, and the system calculates the torque stiffness and the return difference of the device by acquiring data transmitted by the force sensor 503, the hydraulic cylinder 502 and the angle encoder 301 in real time, and draws a hysteresis curve graph, as shown in fig. 5.
While the foregoing is directed to embodiments of the present invention, it will be understood by those skilled in the art that various changes may be made without departing from the spirit and scope of the invention.
Claims (5)
1. The utility model provides a precision right angle speed reducer torsional rigidity and return difference detection device which characterized in that includes:
a first frame body;
the right-angle speed reducer is mounted on the first frame body, and a first rotating shaft is arranged at the first end of the right-angle speed reducer;
the first end of the second frame body is installed on the first frame body, the second end of the second frame body is provided with an angle encoder fixedly connected with the first rotating shaft, and the angle encoder is used for acquiring deflection angle data of the right-angle speed reducer;
the first force arm is arranged on the rotary disc, and a first abutting part is arranged at one end, far away from the rotary disc, of the first force arm;
and the detector is used for detecting the torsional rigidity of the right-angle speed reducer and is placed below the first abutting part, and when the turntable rotates and drives the first force arm to swing, the first abutting part abuts against the detector.
2. The device for detecting the torsional rigidity and the return difference of the precision right-angle speed reducer according to claim 1, further comprising a third frame body, wherein a positioning hole is formed in the third frame body, a second rotating shaft is arranged at a second end of the right-angle speed reducer, and one end, far away from the right-angle speed reducer, of the second rotating shaft rotatably penetrates into the positioning hole.
3. The device for detecting the torsional rigidity and the return difference of the precision right-angle speed reducer according to claim 1, further comprising a connecting piece, wherein a limiting hole is formed in the first frame body, a limiting groove is formed in the first end of the second frame body, and the connecting piece penetrates through the limiting groove and the limiting hole in sequence to fix the second frame body on the first frame body.
4. The apparatus of claim 1, wherein the detector comprises:
a supporting seat;
the hydraulic cylinder is arranged on the supporting seat;
and the force sensor is used for abutting against the first abutting part and is arranged at one end of the hydraulic cylinder, which is far away from the supporting seat.
5. The device for detecting the torsional rigidity and the return difference of the precision right-angle speed reducer according to claim 1, wherein a second force arm is symmetrically arranged on the rotary table, a second collision part is arranged at one end, far away from the rotary table, of the second force arm, two detectors are arranged, and the two detectors are respectively placed below the first collision part and the second collision part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211371216.XA CN115683607A (en) | 2022-11-03 | 2022-11-03 | Accurate right angle speed reducer torsional rigidity and return difference detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211371216.XA CN115683607A (en) | 2022-11-03 | 2022-11-03 | Accurate right angle speed reducer torsional rigidity and return difference detection device |
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| Publication Number | Publication Date |
|---|---|
| CN115683607A true CN115683607A (en) | 2023-02-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211371216.XA Pending CN115683607A (en) | 2022-11-03 | 2022-11-03 | Accurate right angle speed reducer torsional rigidity and return difference detection device |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104062121A (en) * | 2014-07-14 | 2014-09-24 | 重庆大学 | Device for detecting torsional rigidity and return difference of precision planetary reducer |
| CN205785813U (en) * | 2016-07-13 | 2016-12-07 | 银川威力减速器有限公司 | A kind of RV decelerator torsional rigidity and idle running error are test bed |
| CN111380681A (en) * | 2020-04-22 | 2020-07-07 | 大连理工大学 | Harmonic gear transmission return difference measuring device and method |
-
2022
- 2022-11-03 CN CN202211371216.XA patent/CN115683607A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104062121A (en) * | 2014-07-14 | 2014-09-24 | 重庆大学 | Device for detecting torsional rigidity and return difference of precision planetary reducer |
| CN205785813U (en) * | 2016-07-13 | 2016-12-07 | 银川威力减速器有限公司 | A kind of RV decelerator torsional rigidity and idle running error are test bed |
| CN111380681A (en) * | 2020-04-22 | 2020-07-07 | 大连理工大学 | Harmonic gear transmission return difference measuring device and method |
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Application publication date: 20230203 |