CN216381717U - Wireless temperature detection system for planetary bearings of gearbox of wind generating set - Google Patents
Wireless temperature detection system for planetary bearings of gearbox of wind generating set Download PDFInfo
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- CN216381717U CN216381717U CN202122534010.1U CN202122534010U CN216381717U CN 216381717 U CN216381717 U CN 216381717U CN 202122534010 U CN202122534010 U CN 202122534010U CN 216381717 U CN216381717 U CN 216381717U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The utility model discloses a wireless temperature detection system for a planetary bearing of a gearbox of a wind generating set, which comprises a wireless temperature sensor unit, an antenna unit and a multi-channel signal acquisition unit, wherein the wireless temperature sensor unit comprises a first wireless temperature sensor and a second wireless temperature sensor, the first wireless temperature sensor and the second wireless temperature sensor are respectively adhered to the edges of the outer ring and the inner ring of each stage of planetary bearing of the gearbox, the antenna unit is arranged on a fixed planet carrier in the gearbox and is in wireless communication connection with all the first wireless temperature sensors and all the second wireless temperature sensors, and the antenna unit is connected with the multi-channel signal acquisition unit arranged outside the gearbox through cables. The utility model can effectively solve the problem that the temperature of the planet bearing in the gear box of the wind generating set is difficult to detect.
Description
Technical Field
The utility model relates to the technical field of temperature detection of a planetary bearing of a gearbox of a wind generating set, in particular to a wireless temperature detection system for the planetary bearing of the gearbox of the wind generating set.
Background
At present, a PT100 temperature sensor is generally adopted for measuring the temperature of a bearing in a gearbox of a wind generating set, and the temperature is measured by pre-installing the PT100 temperature sensor on a fixed bearing seat and connecting a wired cable. By adopting the method, the temperature of the fixed bearing seat can be tested, but the temperature of the planet bearing (comprising the inner ring and the outer ring) cannot be tested. A main gear box of a semi-direct-drive type wind generating set in the wind power generation industry generally adopts a two-stage planetary or three-stage planetary transmission structure, and the internal structure of the gear box is super compact. The planet wheel not only rotates but also revolves, and a temperature sensor cannot be arranged on a fixed bearing seat to measure the temperature of the outer ring and the inner ring of the planet bearing. The actual operating temperature parameters of the planetary bearing of the gearbox directly influence the service life of the bearing, so the temperature detection of the outer ring and the inner ring of the planetary bearing of the gearbox is very important. Because the internal structure of the semi-direct-drive gearbox is complex, the structure is compact, the high-temperature environment is realized, lubricating oil is sprayed, and the planetary wheel rotates and revolves at a high speed, under the complex condition, a mature scheme for measuring the temperature of the outer ring and the inner ring of the planetary bearing of the gearbox, particularly the semi-direct-drive gearbox, in the wind power industry does not exist at present.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art, provides a wireless temperature detection system for a planet bearing of a gearbox of a wind generating set, and can effectively solve the problem that the temperature of the planet bearing in the gearbox of the wind generating set is difficult to detect.
In order to achieve the purpose, the technical scheme provided by the utility model is as follows: a wireless temperature detection system for a planetary bearing of a gearbox of a wind generating set comprises a wireless temperature sensor unit, an antenna unit and a multi-channel signal acquisition unit, wherein the wireless temperature sensor unit comprises a first wireless temperature sensor for measuring the temperature of the outer ring of the planetary bearing and a second wireless temperature sensor for measuring the temperature of the inner ring of the planetary bearing, the first wireless temperature sensor and the second wireless temperature sensor are respectively stuck to the edges of the outer ring and the inner ring of each stage of the planetary bearing of the gearbox, the temperature probes of each first wireless temperature sensor and each second wireless temperature sensor are respectively contacted with the outer ring and the inner ring of the corresponding planetary bearing, the antenna unit is arranged on a fixed planet carrier in the gearbox and is in wireless communication connection with all the first wireless temperature sensors and all the second wireless temperature sensors, and is connected with the multi-channel signal acquisition unit arranged outside the gearbox through cables, the temperature signals measured by the first wireless temperature sensor and the second wireless temperature sensor which rotate to any angle can be transmitted to the multi-channel signal acquisition unit through the antenna unit, and the multi-channel signal acquisition unit is used for acquiring, managing and displaying all temperature signals.
Furthermore, the antenna unit comprises a plurality of antennas, the plurality of antennas are uniformly distributed on the fixed planet carrier along the circumferential direction of the fixed planet carrier in the gear box, and each antenna is connected with the multi-channel signal acquisition unit through a cable.
Further, the first wireless temperature sensor and the second wireless temperature sensor are both smaller than 30mm 10mm in size.
Furthermore, the first wireless temperature sensor and the second wireless temperature sensor are respectively adhered to corresponding positions of the planet bearing by adopting high-temperature-resistant and oil-resistant glue.
Further, the first wireless temperature sensor and the second wireless temperature sensor are both active or passive temperature sensors.
Further, the cable passes out of the gear box through a viewing hole of the gear box or a specific hole on the gear box.
Furthermore, the multichannel signal acquisition unit is in communication connection with a main control system of the unit.
Compared with the prior art, the utility model has the following advantages and beneficial effects:
1. according to the utility model, the wireless temperature sensors are adhered to the outer ring and the inner ring of the planet bearing, and the probes of the wireless temperature sensors are contacted with the outer ring and the inner ring of the planet bearing, so that the temperature detection of the inner ring and the outer ring of the planet bearing is realized, and the difficulty that the traditional temperature sensor cannot be installed for detecting the temperature due to the complicated environmental characteristics of the planet bearing of the gearbox is solved; through adopting a plurality of antennas evenly to arrange to the inside fixed planet carrier of gear box on, solve wireless temperature sensor signal transmission's problem, can transmit the temperature signal that the wireless temperature sensor who rotates to arbitrary angle measured to multichannel signal acquisition unit, the measuring result degree of accuracy is high.
2. The wireless temperature sensor adopts a miniature active or passive temperature sensor, and the thickness of the wireless temperature sensor is reduced to a specific thickness, so that the whole volume of the wireless temperature sensor is reduced, and the installation requirement of the gear box which has a compact internal structure and adopts a two-stage planetary or three-stage planetary transmission structure is met.
3. The multi-channel signal acquisition unit can be connected with a plurality of wireless temperature sensor signals (such as more than 128), and the capability of simultaneously acquiring and analyzing the inner ring and the outer ring of the multistage planetary bearing of the gearbox is met.
4. The system can realize real-time temperature detection and analysis of the multistage planetary bearing of the wind power semi-direct-drive gearbox, thereby verifying whether the temperature values of the inner ring and the outer ring of the planetary bearing are consistent with the theoretical design, providing original data support for optimally designing the gearbox bearing, improving the reliability of the gearbox and reducing the field operation failure rate.
Drawings
FIG. 1 is a schematic structural diagram of a detection system of the present invention.
FIG. 2 is a schematic diagram of the application of the detection system of the present invention to a gearbox.
Fig. 3 is a schematic view of the installation of the wireless temperature sensor unit of the present invention on a planet bearing.
Fig. 4 is a schematic view of the installation of the antenna unit of the present invention on a fixed carrier.
Detailed Description
The present invention is further illustrated with reference to the following specific examples, but the mode of use of the present invention is not limited thereto.
As shown in fig. 1 to 4, the wireless temperature detection system for the planetary bearing of the gearbox of the wind generating set according to the embodiment includes a wireless temperature sensor unit 1, an antenna unit 2 and a multi-channel signal acquisition unit 3, where the wireless temperature sensor unit 1 includes a plurality of first wireless temperature sensors 101 for measuring the temperature of the outer ring of the planetary bearing and a plurality of second wireless temperature sensors 102 for measuring the temperature of the inner ring of the planetary bearing, and these sensors are all of a patch type, and have the characteristics of small size, thin thickness, high temperature resistance, lubricant resistance, capability of normally sending and receiving signals during the rotation motion, and effective transmission distance of wireless signals greater than 10m, so as to meet the special environmental requirements inside the gearbox 5, and the first wireless temperature sensors 101 and the second wireless temperature sensors 102 are respectively adhered to the edges of the outer ring 501 and the inner ring 502 of the planetary bearing of the first-stage planetary gear of the gearbox 5 by high-strength adhesive glue of high-temperature resistance and lubricant resistance, the edges of the outer ring 501 and the inner ring 502 of the planetary bearing of the secondary planet wheel are respectively stuck with the first wireless temperature sensor 101 and the second wireless temperature sensor 102 through high-temperature-resistant and lubricating-oil-resistant high-strength viscous glue, so that the temperature probes of the first wireless temperature sensor 101 and the second wireless temperature sensor 102 are ensured to be respectively contacted with the outer ring 501 and the inner ring 502 of the corresponding planetary bearing, the wireless temperature sensors can be prevented from being damaged and falling through high-temperature-resistant 200 ℃ (the maximum temperature of the planetary bearing of the gear box 5 is not more than 85 ℃), and the service life requirement is met; because the shell and the gear of the gear box 5 are made of iron materials capable of blocking signal transmission, the thickness of the shell and the gear is thick, and the signals of the wireless temperature sensors cannot be transmitted to the outside of the gear box 5, the antenna unit 2 is arranged on the fixed planet carrier 6 in the gear box 5, the antenna unit 2 is in wireless communication connection with all the first wireless temperature sensors 101 and all the second wireless temperature sensors 102, the antenna unit 2 is connected with the multi-channel signal acquisition unit 3 arranged outside the gear box 5 through the cable 8, the temperature signals measured by the first wireless temperature sensors 101 and the second wireless temperature sensors 102 which rotate to any angle can be transmitted to the multi-channel signal acquisition unit 3 through the antenna unit 2, the multi-channel signal acquisition unit 3 is used for acquiring, managing and displaying all the temperature signals and can be in communication connection with the main control system 4 of the unit, the multi-channel signal acquisition unit 3 can meet the access requirements of all wireless temperature sensors, and can upload and store data to the main control system 4.
Further, the antenna unit 2 comprises 3 antennas 201, the 3 antennas 201 are uniformly distributed on the fixed planet carrier 6 along the circumferential direction of the fixed planet carrier 6 in the gear box 5, the difference between the circumferences of the antennas 201 is 120 degrees, so that the antenna unit 2 can normally receive signals no matter which angle the wireless temperature sensor rotates, each antenna 201 is connected with the multi-channel signal acquisition unit 3 through a cable 8, and the cable 8 penetrates out of the gear box 5 through an observation hole of the gear box 5 or a specific hole 7 in the gear box 5.
Further, the first wireless temperature sensor 101 and the second wireless temperature sensor 102 are both active or passive temperature sensors. Before the first wireless temperature sensor 101 and the second wireless temperature sensor 102 are pasted, thinning treatment is needed in advance, if the thickness of the first wireless temperature sensor is thinned to be less than 10mm, and the whole size specification is less than 30mm 10mm, so that the requirement of the installation space of the primary planetary transmission structure of the gear box 5 can be met, and the requirement of the compact installation space inside the secondary planetary transmission structure can be particularly met.
By adopting the detection system of the embodiment, real-time temperature detection and analysis can be carried out on the multistage planetary bearings (such as the first-stage planetary bearing, the second-stage planetary bearing and the third-stage planetary bearing) of the wind power semi-direct-drive gearbox, so that whether the temperature values of the inner ring and the outer ring of the planetary bearing are consistent with the theoretical design is verified, original data support is provided for optimally designing the gearbox bearing, the reliability of the gearbox is improved, and the field operation failure rate is reduced.
The above-mentioned embodiments are merely preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, so that variations based on the shape and principle of the present invention should be covered within the scope of the present invention.
Claims (7)
1. The utility model provides a wireless detecting system of wind generating set gear box planet bearing temperature which characterized in that: the temperature measurement device comprises a wireless temperature sensor unit, an antenna unit and a multi-channel signal acquisition unit, wherein the wireless temperature sensor unit comprises a first wireless temperature sensor for measuring the temperature of the outer ring of a planetary bearing and a second wireless temperature sensor for measuring the temperature of the inner ring of the planetary bearing, the first wireless temperature sensor and the second wireless temperature sensor are respectively adhered to the edges of the outer ring and the inner ring of each stage of the planetary bearing of a gear box, the temperature probes of each first wireless temperature sensor and each second wireless temperature sensor are respectively contacted with the outer ring and the inner ring of the corresponding planetary bearing, the antenna unit is arranged on a fixed planet carrier in the gear box and is in wireless communication connection with all the first wireless temperature sensors and all the second wireless temperature sensors, and the antenna unit is connected with the multi-channel signal acquisition unit arranged outside the gear box through cables, the temperature signals measured by the first wireless temperature sensor and the second wireless temperature sensor which rotate to any angle can be transmitted to the multi-channel signal acquisition unit through the antenna unit, and the multi-channel signal acquisition unit is used for acquiring, managing and displaying all temperature signals.
2. The system of claim 1, wherein the system comprises: the antenna unit comprises a plurality of antennas, the plurality of antennas are uniformly distributed on the fixed planet carrier along the circumferential direction of the fixed planet carrier in the gear box, and each antenna is connected with the multi-channel signal acquisition unit through a cable.
3. The system of claim 1, wherein the system comprises: the first wireless temperature sensor and the second wireless temperature sensor are both smaller than 30mm 10mm in size.
4. The system of claim 1, wherein the system comprises: the first wireless temperature sensor and the second wireless temperature sensor are respectively adhered to corresponding positions of the planet bearing by adopting high-temperature-resistant and oil-resistant glue.
5. The system of claim 1, wherein the system comprises: the first wireless temperature sensor and the second wireless temperature sensor are both active or passive temperature sensors.
6. The system for wirelessly detecting the temperature of the planet bearing of the gearbox of the wind generating set according to claim 1 or 2, wherein: the cable passes out of the gear box through a viewing hole of the gear box or a specific hole on the gear box.
7. The system of claim 1, wherein the system comprises: and the multi-channel signal acquisition unit is in communication connection with a main control system of the unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122534010.1U CN216381717U (en) | 2021-10-21 | 2021-10-21 | Wireless temperature detection system for planetary bearings of gearbox of wind generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122534010.1U CN216381717U (en) | 2021-10-21 | 2021-10-21 | Wireless temperature detection system for planetary bearings of gearbox of wind generating set |
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| CN216381717U true CN216381717U (en) | 2022-04-26 |
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| CN202122534010.1U Active CN216381717U (en) | 2021-10-21 | 2021-10-21 | Wireless temperature detection system for planetary bearings of gearbox of wind generating set |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114136489A (en) * | 2021-10-21 | 2022-03-04 | 明阳智慧能源集团股份公司 | Wireless temperature detection method for planetary bearing of gearbox of wind generating set |
| CN115306654A (en) * | 2022-08-04 | 2022-11-08 | 大唐乌拉特后旗新能源有限公司 | Aerogenerator bearing wireless temperature measuring device that can early warn in advance |
-
2021
- 2021-10-21 CN CN202122534010.1U patent/CN216381717U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114136489A (en) * | 2021-10-21 | 2022-03-04 | 明阳智慧能源集团股份公司 | Wireless temperature detection method for planetary bearing of gearbox of wind generating set |
| CN115306654A (en) * | 2022-08-04 | 2022-11-08 | 大唐乌拉特后旗新能源有限公司 | Aerogenerator bearing wireless temperature measuring device that can early warn in advance |
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