CN203785620U - Bidirectional thrust bearing oil film thickness measuring device - Google Patents
Bidirectional thrust bearing oil film thickness measuring device Download PDFInfo
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- CN203785620U CN203785620U CN201420051292.7U CN201420051292U CN203785620U CN 203785620 U CN203785620 U CN 203785620U CN 201420051292 U CN201420051292 U CN 201420051292U CN 203785620 U CN203785620 U CN 203785620U
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- film thickness
- thrust bearing
- oil film
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- wlt2400sz
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Abstract
The utility model discloses a bidirectional thrust bearing oil film thickness measuring device, wherein a DJS8036 model data collecting and recording instrument is used for collecting thrust bearing oil film thickness, a wireless module based on a WLT2400SZ model ultra low power consumption ZigBee is adopted for transmitting instructions and data, and then the thrust bearing oil film thickness is processed and analyzed through an upper main control computer. According to the bidirectional thrust bearing oil film thickness measuring device, quick, reliable and accurate measurement of thrust bearing oil film thickness distribution of a dynamo-electric machine of a water pumping and energy storing machine group is realized; the condition that a wireless data transmission module employing an FM modulation mode is poor in interference resistance and high in error rate for a long time; the bidirectional thrust bearing oil film thickness measuring device is beneficial for conducting thrust bearing oil film thickness tests of the dynamo-electric machine of the water pumping and energy storing machine group under conditions of high rotation speed and strong interference.
Description
Technical field:
The utility model relates to a kind of two-direction thrust bearing oil film thickness measurement mechanism.
Background technology:
The thrust bearing of water-storage motor adopts centre bearing and two-way, high-speed cruising, therefore becomes the gordian technique that needs primary study in the manufacture of water-storage unit.Properties of Thrust Bearings research is an integrated technology project, and the technical scope relating to is wider, and adopting the method for calculating-testing is that a kind of result is accurate, the reliable method of technology.In order to optimize structure, the parameter of motor thrust bearing, improve its operational reliability, need to carry out comprehensive experimental study to thrust bearing.And can reflect the thrust bearing work lubrication parameter (oil film thickness, oil film pressure, oil film temperature) whether normal parameter is bearing.Therefore, the measurement of oil film thickness parameter is particularly important.Existing generator thrust bearing oil film thickness is measured and adopted single-chip microcomputer is core, BENTLY3300 type eddy current displacement sensor is carried out to AD sampling, and by passing to host computer based on FM modulation system wireless data transmission module, thereby obtain oil film thickness data, the core of this kind of method oil film thickness DJS8036 type data acquisition recorder is made up of single-chip microcomputer and some peripheral circuits, and anti-interference is poor; Higher based on the FM modulation system wireless data transmission module bit error rate, above two drawbacks make thrust bearing oil film thickness DATA REASONING not accurate enough, especially serious under the high rotating speed of generator.
Summary of the invention:
The utility model provides a kind of two-direction thrust bearing oil film thickness measurement mechanism, this utility model has overcome the drawback of the application poor loaded down with trivial details hardware circuit of anti-interference and the higher composition of the wireless data transmission module based on FM modulation system of bit error rate system measurement method, the utility model is achieved through the following technical solutions: a kind of two-direction thrust bearing oil film thickness measurement mechanism, this device is by five identical BENTLY3300 type eddy current displacement sensors, DJS8036 type data acquisition recorder, two identical WLT2400SZ type super low-power consumption ZigBee wireless modules, host computer four part compositions.DJS8036 type data acquisition recorder (6) is connected with WLT2400SZ type super low-power consumption ZigBee wireless module (8) by RS232 standard serial interface line (7), DJS8036 type data acquisition recorder model: DJS8036, WLT2400SZ type super low-power consumption ZigBee wireless module model: WLT2400SZ; DJS8036 type data acquisition recorder (6) and WLT2400SZ type super low-power consumption ZigBee wireless module (8) are encapsulated in shielding box (5) to shielding box model: RS#2022046; The input terminal of DJS8036 type data acquisition recorder is connected with extension line (4), the input terminal of extension line (4) is connected with five the BENTLY3300 type eddy current displacement sensors (3) that are embedded in runner plate (1) respectively, BENTLY3300 type eddy current displacement sensor model: BENTLY3300; WLT2400SZ type super low-power consumption ZigBee wireless module (8) is connected by upper DC/DC power module (10) lead-out terminal by field voltage power supply on water-storage unit dynamo-electric machine rotor of power supply lead wire (9) and water-storage unit dynamotor macro-axis (2); WLT2400SZ type super low-power consumption ZigBee wireless module (8) is connected with host computer serial ports by RS232 standard serial interface line, host computer sends image data instruction to the DJS8036 type data acquisition recorder on water-storage unit dynamo-electric machine rotor, DJS8036 type data acquisition recorder sends data to host computer, and completes wireless receiving and the transmission of data by WLT2400SZ type super low-power consumption ZigBee wireless module.
The runner plate of the utility model thrust bearing is rotated in the time of work, and the acquisition of thrust bearing oil film thickness data need adopt wireless communication technique.The utility model adopts the brand-new radio network data communication technology of ZigBee() module, WLT2400SZ type super low-power consumption ZigBee wireless module is supported the multiple interfaces baud rates such as 1200bps～115200bps, transmission range can reach 500 meters, frequency of operation is 2.380GHz～2.500GHz, totally 25 physics frequency ranges, can effectively avoid the band interference of self, also can avoid by extended frequency band the interference of WIFI and bluetooth.
In the utility model, give and be arranged on each device power supply on water-storage unit dynamotor macro-axis by the field voltage on water-storage unit dynamo-electric machine rotor, make each device can obtain reliable and continual power supply, this makes water-storage unit dynamotor thrust bearing oil film thickness measure on-line monitoring becomes possibility, the utility model achievement contributes to optimize structure, the parameter of motor thrust bearing very much, improve its operational reliability, more contribute to the safe operation of unit.
Brief description of the drawings:
Fig. 1 is that the utility model is arranged on the each apparatus structure schematic diagram in hydrogenerator macro-axis place.
Fig. 2 is the utility model principle assumption diagram.
Embodiment:
A kind of two-direction thrust bearing oil film thickness measurement mechanism as shown in Figure 1, the utility model is by five identical BENTLY3300 type eddy current displacement sensors, DJS8036 type data acquisition recorder, two identical WLT2400SZ type super low-power consumption ZigBee wireless modules, and host computer four parts form.DJS8036 type data acquisition recorder 6 is connected with WLT2400SZ type super low-power consumption ZigBee wireless module 8 by RS232 standard serial interface line 7; For the electromagnetic interference (EMI) that strengthens two-direction thrust bearing oil film thickness measurement mechanism is encapsulated in DJS8036 type data acquisition recorder 6 and WLT2400SZ type super low-power consumption ZigBee wireless module 8 in shielding box 5, the input terminal of DJS8036 type data acquisition recorder is connected with extension line 4, and the input terminal of extension line 4 is connected with five BENTLY3300 type eddy current displacement sensors 3 that are embedded in runner plate 1 respectively.
The utility model WLT2400SZ type super low-power consumption ZigBee wireless module 8 is connected with DC/DC power module 10 lead-out terminals of being powered by field voltage on water-storage unit dynamo-electric machine rotor on water-storage unit dynamotor macro-axis 2 by power supply lead wire 9.
The utility model WLT2400SZ type super low-power consumption ZigBee wireless module 8 is connected with host computer serial ports by RS232 standard serial interface line, host computer sends image data instruction to the DJS8036 type data acquisition recorder on water-storage unit dynamo-electric machine rotor, DJS8036 data acquisition recorder sends data to host computer, and completes wireless receiving and the transmission of data by WLT2400SZ type super low-power consumption ZigBee wireless module.
Two-direction thrust bearing oil film thickness measurement mechanism principle assumption diagram as shown in Figure 2, DJS8036 type data acquisition recorder carries out AD sampling to five identical eddy current displacement sensors respectively, obtains thrust bearing oil film thickness data.By WLT2400SZ type super low-power consumption ZigBee wireless module, thrust bearing oil film thickness data transmission is calculated to machine to host computer.The power supply of DJS8036 type data acquisition recorder and WLT2400SZ type super low-power consumption ZigBee wireless module is to convert rotor excited voltage to required voltage by DC-DC power transfer module to obtain.
The utility model has been realized quick, the reliable and Measurement accuracy to water-storage set generator thrust bearing oil film thickness, change for a long time and cannot obtain the situation of thrust bearing oil film thickness under high rotating speed and the strong condition of interference, and can be water-storage unit dynamotor optimal design important scientific basis is provided.
Claims (1)
1. a two-direction thrust bearing oil film thickness measurement mechanism, it is characterized in that: this device is by five identical BENTLY3300 type eddy current displacement sensors, DJS8036 type data acquisition recorder, two identical WLT2400SZ type super low-power consumption ZigBee wireless modules, host computer four part compositions, DJS8036 type data acquisition recorder (6) is connected with WLT2400SZ type super low-power consumption ZigBee wireless module (8) by RS232 standard serial interface line (7), DJS8036 type data acquisition recorder model: DJS8036, WLT2400SZ type super low-power consumption ZigBee wireless module model: WLT2400SZ, DJS8036 type data acquisition recorder (6) and WLT2400SZ type super low-power consumption ZigBee wireless module (8) are encapsulated in shielding box (5) to shielding box model: RS#2022046, the input terminal of DJS8036 type data acquisition recorder is connected with extension line (4), the input terminal of extension line (4) is connected with five the BENTLY3300 type eddy current displacement sensors (3) that are embedded in runner plate (1) respectively, BENTLY3300 type eddy current displacement sensor model: BENTLY3300, WLT2400SZ type super low-power consumption ZigBee wireless module (8) is connected by upper DC/DC power module (10) lead-out terminal by field voltage power supply on water-storage unit dynamo-electric machine rotor of power supply lead wire (9) and water-storage unit dynamotor macro-axis (2), WLT2400SZ type super low-power consumption ZigBee wireless module (8) is connected with host computer serial ports by RS232 standard serial interface line, host computer sends image data instruction to the DJS8036 type data acquisition recorder on water-storage unit dynamo-electric machine rotor, DJS8036 type data acquisition recorder sends data to host computer, and completes wireless receiving and the transmission of data by WLT2400SZ type super low-power consumption ZigBee wireless module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420051292.7U CN203785620U (en) | 2014-01-27 | 2014-01-27 | Bidirectional thrust bearing oil film thickness measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420051292.7U CN203785620U (en) | 2014-01-27 | 2014-01-27 | Bidirectional thrust bearing oil film thickness measuring device |
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| Publication Number | Publication Date |
|---|---|
| CN203785620U true CN203785620U (en) | 2014-08-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420051292.7U Expired - Fee Related CN203785620U (en) | 2014-01-27 | 2014-01-27 | Bidirectional thrust bearing oil film thickness measuring device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762343A (en) * | 2016-12-29 | 2017-05-31 | 北京中元瑞讯科技有限公司 | The diagnostic method of the hydraulic generator set thrust bearing failure based on online data |
| CN108425779A (en) * | 2018-03-16 | 2018-08-21 | 广研检测（广州）有限公司 | Water turbine set thrust bearing oil film thickness on-Line Monitor Device and water turbine set |
| CN109186442A (en) * | 2018-11-14 | 2019-01-11 | 大连三环复合材料技术开发股份有限公司 | A kind of measurement method of thrust bearing oil film thickness |
| CN110440128A (en) * | 2019-07-30 | 2019-11-12 | 核工业第八研究所 | A kind of internal diameter shrinkage dynamic monitoring method and device winding metal liner |
| CN110631528A (en) * | 2019-09-27 | 2019-12-31 | 中国水利水电科学研究院 | Oil film thickness monitoring device for thrust bearing of hydroelectric generating set |
-
2014
- 2014-01-27 CN CN201420051292.7U patent/CN203785620U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762343A (en) * | 2016-12-29 | 2017-05-31 | 北京中元瑞讯科技有限公司 | The diagnostic method of the hydraulic generator set thrust bearing failure based on online data |
| CN106762343B (en) * | 2016-12-29 | 2019-01-15 | 北京中元瑞讯科技有限公司 | The diagnostic method of hydraulic generator set thrust bearing failure based on online data |
| CN108425779A (en) * | 2018-03-16 | 2018-08-21 | 广研检测（广州）有限公司 | Water turbine set thrust bearing oil film thickness on-Line Monitor Device and water turbine set |
| CN109186442A (en) * | 2018-11-14 | 2019-01-11 | 大连三环复合材料技术开发股份有限公司 | A kind of measurement method of thrust bearing oil film thickness |
| CN109186442B (en) * | 2018-11-14 | 2020-08-25 | 大连三环复合材料技术开发股份有限公司 | Method for measuring thickness of oil film of thrust bearing |
| CN110440128A (en) * | 2019-07-30 | 2019-11-12 | 核工业第八研究所 | A kind of internal diameter shrinkage dynamic monitoring method and device winding metal liner |
| CN110440128B (en) * | 2019-07-30 | 2021-04-27 | 核工业第八研究所 | Dynamic monitoring method and device for inner diameter shrinkage of wound metal liner |
| CN110631528A (en) * | 2019-09-27 | 2019-12-31 | 中国水利水电科学研究院 | Oil film thickness monitoring device for thrust bearing of hydroelectric generating set |
| CN110631528B (en) * | 2019-09-27 | 2020-09-01 | 中国水利水电科学研究院 | Oil film thickness monitoring device for thrust bearing of hydroelectric generating set |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140820 Termination date: 20210127 |
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| CF01 | Termination of patent right due to non-payment of annual fee |