WO2020029410A1 - 能精确检测轴承工况的一体式轴承座 - Google Patents

能精确检测轴承工况的一体式轴承座 Download PDF

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Publication number
WO2020029410A1
WO2020029410A1 PCT/CN2018/108517 CN2018108517W WO2020029410A1 WO 2020029410 A1 WO2020029410 A1 WO 2020029410A1 CN 2018108517 W CN2018108517 W CN 2018108517W WO 2020029410 A1 WO2020029410 A1 WO 2020029410A1
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WIPO (PCT)
Prior art keywords
bearing
end cover
temperature sensor
ring
accurately detecting
Prior art date
Application number
PCT/CN2018/108517
Other languages
English (en)
French (fr)
Inventor
郑子勋
郑懿焜
郑蕾婷
Original Assignee
浙江优特轴承有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 浙江优特轴承有限公司 filed Critical 浙江优特轴承有限公司
Priority to EP18929556.1A priority Critical patent/EP3835749B1/en
Publication of WO2020029410A1 publication Critical patent/WO2020029410A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/52—Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions
    • F16C19/525—Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions related to temperature and heat, e.g. insulation
    • 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
    • G01M13/04—Bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/54—Systems consisting of a plurality of bearings with rolling friction
    • F16C19/541—Systems consisting of juxtaposed rolling bearings including at least one angular contact bearing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
    • F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
    • F16C35/042—Housings for rolling element bearings for rotary movement
    • F16C35/045—Housings for rolling element bearings for rotary movement with a radial flange to mount the housing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
    • F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
    • F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
    • F16C35/061—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing mounting a plurality of bearings side by side
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C37/00—Cooling of bearings
    • F16C37/007—Cooling of bearings of rolling bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C41/00—Other accessories, e.g. devices integrated in the bearing not relating to the bearing function as such
    • F16C41/008—Identification means, e.g. markings, RFID-tags; Data transfer means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2233/00—Monitoring condition, e.g. temperature, load, vibration
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
    • F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
    • F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
    • F16C35/067—Fixing them in a housing
    • 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

Definitions

  • the invention belongs to the technical field of bearings and relates to an integrated bearing seat capable of accurately detecting the working conditions of a bearing.
  • the bearing is usually set on the main shaft. During the high-speed rotation of the main shaft, the inner ring of the bearing is driven to rotate, and the bearing temperature rises. On the other hand, when the temperature of the grease in the bearing is higher than 100 ° C, the viscosity of the grease is too low, which lubricates. Ruptured performance can cause bearing damage.
  • a temperature sensor is usually provided on the bearing housing or the sleeve, and the temperature of the bearing inside the sleeve is inferred through the simulation field analysis. This temperature is a simulated temperature, not the actual bearing. Temperature, there will be deviation between the two, can not directly reflect the temperature of the bearing during operation.
  • a Chinese patent discloses a bearing temperature detection program system [application number: 201710745842.3], which is mainly composed of a temperature acquisition and wireless transmission module, a bearing thermometer, a temperature sensor, a ZigBee / RFD module, a general control terminal, a ZigBee network adapter, a database, It consists of a main console and an audible and visual alarm.
  • the temperature collecting and wireless transmitting module is provided with a bearing thermometer.
  • the bearing thermometer is connected to a temperature sensor, the temperature sensor is connected to a ZigBee / RFD module, and the right side of the temperature collecting and wireless transmitting module is provided.
  • the ZigBee network adapter is set in the main control terminal.
  • the ZigBee network adapter is connected to the ZigBee / RFD module.
  • the main console is connected to the ZigBee network adapter.
  • the invention reduces the power consumption of the system and can greatly improve the reliability of the bearing temperature detection system.
  • the patent also does not directly collect temperature data for bearings, and the reliability of temperature collection needs to be further improved.
  • Chinese patent also discloses a bearing temperature and dynamic torque detection test method and test device [Application No .: 201210048067.3], which method comprises: applying a pre-tension force in a predetermined direction to the tested bearing and driving its rotation; detecting the detected Temperature and dynamic torque when the bearing rotates; when the bearing temperature detection data reaches the set temperature value within a predetermined time, and / or the bearing dynamic torque detection data reaches the set torque value within a predetermined time, it is determined that the detected bearing is damaged.
  • the device includes a bearing pre-tensioning and dragging mechanism, a bearing temperature and torque detection unit, and a bearing damage determination unit.
  • the invention is suitable for testing the manufacturing quality of bearings, and through test analysis and improvement of the bearing production process, the bearing research and development time period can be significantly shortened. After careful observation by the applicant, it was found that the temperature sensor of the invention is installed in a special shaft head, and the actual temperature detected is the temperature of the shaft head, and the temperature of the shaft head cannot directly reflect the temperature of the bearing.
  • An object of the present invention is to provide an integrated bearing housing capable of accurately detecting the working condition of a bearing in view of the above problems.
  • the present invention adopts the following technical solutions:
  • An integrated bearing housing capable of accurately detecting the working condition of a bearing includes a shaft sleeve.
  • the shaft sleeve is provided with a plurality of bearings.
  • the two ends of the shaft sleeve are respectively provided with a rear end cover and a front end cover.
  • There is a bearing working condition detector that directly corresponds to the outer and / or inner ring of the bearing and can detect the temperature of the outer and / or inner ring of the bearing.
  • the bearing working condition detector includes a bearing outer ring and / or an inner ring directly corresponding between the rear end cover and the shaft sleeve so as to detect the outside of the bearing.
  • the first bearing operating condition detection mechanism for the temperature of the ring and / or the inner ring.
  • the first bearing operating condition detecting mechanism includes a first temperature sensor corresponding to a position of an outer ring of a bearing close to a rear end cover, and A second temperature sensor corresponding to the position of the inner ring of the bearing of the end cover.
  • the first bearing operating condition detection mechanism further includes a first PCB board connected to the rear end cover, a first temperature sensor and a second temperature sensor and a first temperature sensor. A PCB board connection.
  • the first PCB board is further provided with a first acceleration gauge.
  • a first displacement sensor is provided between the first PCB board and the bearing.
  • the rear end cover is provided with two PCB board positioning grooves symmetrically arranged along the center line of the rear end cover, and is provided on the first PCB board.
  • a first section corresponding to the outer and / or inner ring of the bearing is provided between the front end cover and the shaft sleeve, so that the temperature of the outer and / or inner ring of the bearing can be detected.
  • Two bearing working condition detection mechanism Two bearing working condition detection mechanism.
  • the second bearing operating condition detection mechanism includes a third temperature sensor corresponding to a position of an outer ring of a bearing near the front end cover, and a third temperature sensor corresponding to the position of the outer ring near the front end cover.
  • a fourth temperature sensor corresponding to the position of the inner ring of the bearing, and the second bearing working condition detection mechanism further includes a second PCB board, and the second PCB board is provided with two symmetrically arranged along the center line of the second PCB board Two second positioning clips, a third temperature sensor is provided on one of the second positioning clips, a fourth temperature sensor is provided on the other second positioning clip, and one second positioning clip is provided on one There is a second acceleration gauge, and a second displacement sensor is provided between the second PCB board and the bearing.
  • a spacer is provided on the inner wall of the sleeve, and at least one bearing is provided on each side of the spacer. There is at least one deformation circle.
  • the deformation ring is annular and is located on a side of the spacer ring near the rear end cover, and one side of the deformation ring is tightly matched with the outer ring of the bearing.
  • the outer wall of the shaft sleeve is provided with a cooling part capable of being connected to a cooling medium.
  • the cooling part is a spiral groove, and two ends of the groove respectively extend to both ends of the shaft sleeve.
  • the present invention can directly detect the temperature of the bearing in the working state. Compared with the prior art, the temperature of the bearing is determined by detecting the temperature of the sleeve, and the detection result is more accurate and reliable. In addition, the present invention directly connects the bearing with the front The rear cover is installed and connected to form an integrated structure. In fact, the user's selection and assembly process is omitted, thereby improving production efficiency.
  • the vibration of the main shaft can be detected, and the vibration of the bearing can be judged.
  • the setting of the displacement sensor can obtain the bearing wear data or precision life through the displacement deviation of the main shaft.
  • the two displacement sensors are symmetrically set to analyze the inclination of the main shaft to learn the status of the bearing in work.
  • a cooling part is provided for the shaft sleeve, so that the shaft sleeve can reduce the temperature during work, the effect of overheating conduction, reduce the temperature rise of the bearing and the temperature difference between the inner and outer rings, make the bearing work stable, and further extend the bearing life.
  • FIG. 1 is an external schematic diagram of the invention.
  • Fig. 2 is a sectional view taken along the line A-A in Fig. 1.
  • Fig. 3 is a B-B sectional view of Fig. 1.
  • Fig. 4 is a sectional view taken along the line E-E of Fig. 1.
  • Fig. 5 is an exploded view of the present invention.
  • an integrated bearing housing capable of accurately detecting bearing working conditions includes a shaft sleeve 1, and the shaft sleeve 1 is cylindrical.
  • the shaft sleeve 1 is provided with a plurality of bearings 2 and the shaft sleeve.
  • a rear end cover 3 and a front end cover 4 are respectively provided at both ends of 1.
  • the number of the bearings 2 is not limited. Those skilled in the art can adjust the number of the bearings according to the needs of the actual work.
  • the outer ring of the bearing tightly cooperates with the inner wall of the shaft sleeve 1.
  • the snare is set on the main shaft 1a and connected to the main shaft.
  • the inner ring of the bearing 2 When the main shaft 1a rotates, the inner ring of the bearing 2 also rotates synchronously.
  • screwing, pinning or snapping may be adopted. This is a common method for those skilled in the art.
  • the rear cover 3 is A sleeve stopper 3a is provided, and the sleeve 1 is sleeved on the rear end cover 3 and the end part abuts against the sleeve stopper 3a.
  • the shaft sleeve 1 is provided with a bearing working condition detector 5 which directly corresponds to the outer ring and / or the inner ring of the bearing 2 and can detect the temperature of the outer ring and / or the inner ring of the bearing 2.
  • the bearing working condition detector 5 directly corresponds to the inner ring and / or outer ring of the bearing 2
  • the measured temperature directly reflects the inner ring and / or outer ring of the bearing 2, thereby obtaining accuracy. Test data.
  • the bearing condition detector 5 includes an outer ring and / or an inner ring of the bearing 2 directly between the rear end cover 3 and the sleeve 1 so as to detect the outer ring of the bearing 2 and And / or the first bearing operating condition detecting mechanism 6 of the inner ring temperature.
  • the first bearing operating condition detecting mechanism 6 directly detects the temperature of the outer ring and / or the inner ring of the bearing 2 near the rear end cover 3.
  • the bearing working condition detector 5 may also be disposed between the front end cover 4 and the sleeve 1 with an outer ring and / or inner ring corresponding to the bearing 2 so as to detect the outer ring and / or the inner ring of the bearing 2.
  • Ring temperature second bearing operating condition detection mechanism 14 may also be disposed between the front end cover 4 and the sleeve 1 with an outer ring and / or inner ring corresponding to the bearing 2 so as to detect the outer ring and / or the inner ring of the bearing 2.
  • the bearing operating condition detector 5 may be the first bearing operating condition detection mechanism 6 and the second bearing operating condition detection mechanism 14, and the structures of the two are as described above. That is, the bearing operating condition detector 5 includes three methods, a separate first bearing operating condition detecting mechanism 6, a separate second bearing operating condition detecting mechanism 14, and a first bearing operating condition detecting mechanism 6 and a second bearing. Combination of working condition detection mechanism 14.
  • the first bearing operating condition detecting mechanism 6 includes a first temperature sensor 7 corresponding to the outer ring position of the bearing 2 near the rear end cover 3, and a second temperature sensor 7 corresponding to the inner ring position of the bearing 2 near the rear end cover 3. Temperature sensor 8. The first temperature sensor 7 directly detects the temperature of the outer ring of the bearing 2, and the second temperature sensor 8 directly detects the temperature of the inner ring of the bearing 2.
  • the first temperature sensor 7 can directly contact the outer ring of the bearing 2 to reflect the temperature of the outer ring of the bearing 2.
  • a commercially available thermocouple can be used.
  • the first temperature sensor 7 can also be used.
  • a commercially available infrared thermometer or infrared temperature probe may be used.
  • the inner ring of the bearing 2 rotates with the main shaft 1a during operation, and it is not suitable to directly contact the inner ring of the bearing 2. It is preferable to use a commercially available infrared thermometer or infrared temperature probe.
  • the first bearing working condition detecting mechanism 6 further includes a first PCB board 9 connected to the rear end cover 3, and the first temperature sensor 7 and the second temperature sensor 8 are disposed on the first PCB board 9, those skilled in the art should know that Circuits can be printed on the PCB board so as to be directly electrically connected to the first temperature sensor 7 and the second temperature sensor 8 to save wiring. Based on the disclosure in this embodiment, those skilled in the art should know that the first PCB board 9 and the first The structure and method for electrically connecting a temperature sensor 7 and a second temperature sensor 8 are not repeated here.
  • the first PCB board 9 is also provided with a first acceleration gauge 10, and the first acceleration gauge 10 is used to test the vibration of the entire bearing block.
  • a first displacement sensor 11 is provided between the first PCB 9 and the bearing 2. The first displacement sensor 11 is used to detect the degree of displacement of the main shaft 1a, so that the displacement deviation between the bearing 2 and the main shaft 1a can be analyzed.
  • the first acceleration gauge 10 and the first displacement sensor 11 are both existing technologies, and commercially available products can be used.
  • the rear end cover 3 is provided with two PCB board positioning grooves 12 symmetrically arranged along the center line of the rear end cover 3, and the first PCB board 9 is provided with two first plate symmetrically disposed along the center line of the first PCB board 9 A positioning clip 13.
  • the two first positioning clips 13 can also be set at an angle such as 90 ° and 120 ° from each other.
  • the first positioning clip 13 is snapped into the positioning groove 12 of the PCB.
  • a first temperature sensor 7 is provided on one of the first positioning clips 13 and a second temperature sensor 8 is provided on the other first positioning clip 13.
  • the first acceleration gauge 10 is located in one of the first positioning blocks. On the block 13.
  • the first PCB board 9 is provided with a through hole or groove for mounting the first acceleration gauge 10, the first temperature sensor 7 and the second temperature sensor 8, and the first PCB board 9 is further provided with a thread.
  • the hole is used for screwing and fixing the rear end cover 3. After the first acceleration gauge 10 and the first PCB board 9, the vibration on the rear end cover 3 is directly transmitted to the first PCB board 9, and the first acceleration gauge 10 receives vibration. The data.
  • the two first positioning blocks 13 are respectively provided with a temperature sensor mounting hole 13a, an accelerometer mounting hole 13b, and a positioning screw hole 13c.
  • the first temperature sensor 7 and the second temperature sensor 8 are installed in the temperature sensor mounting hole.
  • the first acceleration gauge 10 is installed on the acceleration gauge installation hole 13b, and each first positioning block 13 is provided with at least one positioning screw hole 13c.
  • the positioning screw hole 13c is screwed with the bolt and formed with the rear cover 3 Fixed connection.
  • the first bearing operating condition detecting mechanism 6 can obtain the data of the temperature of the outer and inner rings of the bearing, the positional displacement of the main shaft 1a near the rear end cover 3, and the vibration data of the rear end cover 3, but Data on the positional deviation of the main shaft 1a near the front cover 4 and the vibration of the front cover 4 cannot be obtained, and when the number of bearings 2 is more than two, only the bearings near the rear cover 3 are obtained 2 temperature. Obviously, this data lacks comprehensiveness. For this reason, in this embodiment, as a preferred solution, as shown in FIG. 4, a direct correspondence between the outer ring and / or the inner ring of the bearing 2 is provided between the front end cover 4 and the sleeve 1 so that the bearing 2 can be detected.
  • the second bearing operating condition detecting mechanism 14 for the temperature of the outer ring and / or the inner ring is provided between the front end cover 4 and the sleeve 1 so that the bearing 2 can be detected.
  • the second bearing operating condition detection mechanism 14 includes a third temperature sensor 15 corresponding to the position of the outer ring of the bearing 2 near the front end cover 4, and a position corresponding to the position of the inner ring of the bearing 2 near the front end cover 4.
  • the fourth temperature sensor 16 and the second bearing working condition detecting mechanism 14 further include a second PCB board 17.
  • the second PCB board 17 is provided with two second boards symmetrically arranged along the center line of the second PCB board 17.
  • a positioning clamp 18 is provided with a third temperature sensor 15 on one of the second positioning clamps 18, a fourth temperature sensor 16 is provided on the other second positioning clamp 18, and one of the second positioning clamps 18 is provided
  • a second acceleration gauge 19 is provided thereon, and a second displacement sensor 20 is provided between the second PCB board 17 and the bearing 2.
  • a first sensor positioning ring 9a having a ring shape is provided with a through hole for mounting the first displacement sensor 11 on the first sensor positioning ring 9a.
  • a second sensor positioning ring 17a having a ring shape is fixedly connected to the second PCB board 17, The second sensor positioning ring 17 a is provided with a through hole for mounting the second displacement sensor 20.
  • the applicant also found that, since the first displacement sensor 11 and the second displacement sensor 20 are located at both ends of the main shaft 1a, by comparing the data collected by the first displacement sensor 11 and the second displacement sensor 20, the inclination of the main shaft 1a can be obtained. data.
  • a spacer 21 is provided on the inner wall of the sleeve 1.
  • the spacer 21 projects from the inner wall of the sleeve 1 and is integrally formed with the sleeve 1.
  • the thickness corresponds to the thickness of the outer ring of the bearing 2. That is, corresponding to the position, at least one bearing 2 is respectively provided on both sides of the spacer 21, and at least one deformation ring 22 is provided between the spacer 21 and the bearing 2.
  • the front end cover 4 is connected to the shaft sleeve 1 through a tightening nut, and the bearing 2 between the front end cover 4 and the spacer 21 is axially positioned.
  • the main shaft 1a and the bearing 2 Both will generate heat. Due to the effects of thermal expansion and contraction, the axial size of bearing 2 will also change accordingly, which also means that the temperature difference between the inner and outer rings of the bearing will cause the inconsistent changes in the inner and outer ring dimensions, resulting in changes in bearing pretension and affect Working performance of bearing 2.
  • the deformation ring 22 is annular and is sleeved on the main shaft 1a and is located between the spacer ring 21 and the bearing 2.
  • the deformation ring 22 can generate axial deformation, thereby absorbing the bearing 2 due to thermal expansion and contraction.
  • the generated axial deformation can maintain the stability of the pre-tension of the bearing 2 and continuously maintain good working performance.
  • the deformation ring 22 may be a strong spring, an elastic washer, or a metal ring made of soft metal.
  • the deformation ring 22 is annular and is located on a side of the spacer ring 21 near the rear end cover 3, and one side of the deformation ring 22 is tightly fitted with the outer ring of the bearing 2.
  • a positioning ring 1b is sleeved on the main shaft 1a.
  • the positioning ring 1b corresponds to the position of the spacer 21, and the positioning ring 16 matches the thickness of the inner ring of the bearing 2.
  • Both sides of the positioning ring 1b The inner ring of a bearing 2 is tightly matched with each other, and the positioning ring 1b is made of soft metal. There is a gap between the positioning ring 1b and the spacer ring 21.
  • This embodiment also provides a structure for cooling the shaft sleeve 1 and then the bearing 2, that is, the outer wall of the shaft sleeve 1 is provided with a cooling part 23 capable of connecting a cooling medium.
  • the cooling part 23 may be provided with a cooling coil, or a cooling medium such as cooling oil, cooling water, and cooling air may be passed in to form a heat exchange.
  • the cooling portion 23 is a spiral groove, and the two ends of the groove extend to the two ends of the shaft sleeve 1, respectively, and a cooling medium is passed in the groove to the bearing 2 Perform heat exchange, adjust the temperature difference between the inner and outer ring of the bearing, and reduce the thermal deformation of the size of the inner and outer ring of the bearing.
  • the cooling portion 23 may be a groove of other shapes, such as a ring structure that communicates with each other, and can also exert a heat exchange effect.
  • the cooling section 23 may be a jacket.
  • cooling portion 23 is a groove structure
  • a sealing sleeve needs to be sleeved outside the groove or outside the shaft sleeve 1 to form the cooling portion 23 into a relatively closed space.
  • the working principle of the invention is:
  • the first temperature sensor 7, the second temperature sensor 8, the first acceleration gauge 10 and the first displacement sensor 11 are respectively mounted on the first PCB board 9, the third temperature sensor 15, the fourth temperature sensor 16, and the second acceleration gauge 19
  • the second and second displacement sensors 20 are respectively mounted on the second PCB board 17.
  • the deformation ring 22 is installed on the side of the sleeve 1 near the front cover 4, and the bearings 2 are installed on both sides of the spacer 21 of the sleeve 1.
  • the number of bearings is set according to the specific working conditions and the length of the corresponding main shaft 1a.
  • the first PCB board 9 is fixedly connected to the rear end cover 3
  • the second PCB board 17 is fixedly connected to the front end cover 4
  • the rear end cover 3 and the front end cover 4 are fixedly connected to the shaft sleeve 1, respectively, to complete the bearing seat installation.
  • the main shaft 1a is inserted into the shaft sleeve 1 and fixed to the inner ring of the bearing 2.
  • the first outer temperature sensor 7 and the second temperature sensor 8 can directly measure the outer ring of the bearing near the rear end cover 3 and The temperature of the inner ring can be directly measured by the third temperature sensor 15 and the fourth temperature sensor 16 on the bearing outer ring and the inner ring on the side of the front cover 4.
  • the vibration of the main shaft 1a near the rear end cover 3 can be measured by the first acceleration gauge 10, and the vibration of the main shaft 1a near the front cover 4 can be measured by the second acceleration gauge 19.
  • the first displacement sensor 11 can measure the displacement change of the main shaft 1a near the rear end cover 3, and the second displacement sensor 20 can measure the displacement change of the main shaft 1a near the front cover 4.
  • the first displacement sensor 11 Compared with the second displacement sensor 20, the inclination of the main shaft 1a can be measured.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
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Abstract

一种能精确检测轴承工况的一体式轴承座，包括轴套（1），所述的轴套（1）内设有若干轴承（2），轴套（1）的两端分别设有后端盖（3）和前端盖（4），所述的轴套（1）内设有直接对应轴承（2）外圈和/或内圈从而能检测轴承外圈和/或内圈温度的轴承工况检测器（5）。该轴承座能直接检测出工作状态下的轴承的温度，相对于现有技术通过检测轴套的温度来判断轴承的温度，检测结果更准确，更可靠。

Description

能精确检测轴承工况的一体式轴承座 技术领域
本发明属于轴承技术领域，涉及一种能精确检测轴承工况的一体式轴承座。
背景技术
轴承通常套设在主轴上，主轴在高速转动过程中，带动轴承内圈转动，轴承温度升高，另一方面，轴承内的润滑脂在温度高于100℃时，润滑脂粘度过低，润滑性能破裂，会导致轴承造成损伤。现有技术在检测轴承在工况下的温度时，通常是在轴承座或轴套上设置温度传感器，通过模拟场分析，来推断轴套内部轴承的温度，这个温度是模拟温度，并非轴承实际温度，两者之间会出现偏差，不能直接反应出轴承的工作时的温度。
如中国专利公开了一种轴承温度检测程序系统[申请号：201710745842.3]，主要由温度采集与无线发射模块、轴承温度器、温度传感器、ZigBee/RFD模块、总控制端、ZigBee网络适配器、数据库、总控制台和声光报警器组成，所述的温度采集与无线发射模块内设有轴承温度器，轴承温度器连接温度传感器，温度传感器连接ZigBee/RFD模块，温度采集与无线发射模块右侧设有总控制端，ZigBee网络适配器设置在总控制端内，ZigBee网络适配器连接ZigBee/RFD模块，总控制台连接ZigBee网络适配器，总控制台上方设有数据库，总控制台下方设有声光报警器。该发明降低系统功耗的同时可以大大提高轴承温度检测系统的可靠性。然而，该专利同样也没有直接针对轴承采集温度数据，温度采集的可靠性需进一步提高。
中国专利还公开了一种轴承温度、动态扭矩检测试验方法及 试验装置[申请号：201210048067.3]，该方法包括：对被检测轴承施加一预定方向的预紧力，并带动其转动；检测被检测轴承转动时的温度、动态扭矩；当轴承温度检测数据在预定时间内达到设定温度值，和/或轴承动态扭矩检测数据在预定时间内达到设定扭矩值时，判定被检测轴承损坏。该装置包括轴承预紧及拖动机构，轴承温度、扭矩检测单元，轴承损坏判定单元，通过对被检测轴承施加一预定方向的预紧力并带动被检测轴承转动，可以实时地检测轴承转动时的温度、动态扭矩，据此判定被检测轴承是否损坏。该发明适用于检测轴承制造质量，通过试验分析、改进轴承生产工艺，可以明显缩短轴承研发时间周期。申请人仔细观察后，发现该发明的温度传感器安装在专用轴头中，其实际检测到的温度为轴头的温度，而轴头的温度并不能直接反应出轴承的温度。
发明内容
本发明的目的是针对上述问题，提供一种能精确检测轴承工况的一体式轴承座。
为达到上述目的，本发明采用了下列技术方案：
一种能精确检测轴承工况的一体式轴承座，包括轴套，所述的轴套内设有若干轴承，轴套的两端分别设有后端盖和前端盖，所述的轴套内设有直接对应轴承外圈和/或内圈从而能检测轴承外圈和/或内圈温度的轴承工况检测器。
在上述的能精确检测轴承工况的一体式轴承座中，所述的轴承工况检测器包括位于后端盖和轴套之间的直接对应轴承外圈和/或内圈从而能检测轴承外圈和/或内圈温度的第一轴承工况检测机构。
在上述的能精确检测轴承工况的一体式轴承座中，所述的第一轴承工况检测机构包括与靠近后端盖的轴承的外圈位置相对应 的第一温度传感器，以及与靠近后端盖的轴承的内圈位置相对应的第二温度传感器。
在上述的能精确检测轴承工况的一体式轴承座中，所述的第一轴承工况检测机构还包括与后端盖连接的第一PCB板，第一温度传感器和第二温度传感器与第一PCB板连接。
在上述的能精确检测轴承工况的一体式轴承座中，所述的第一PCB板上还设有第一加速规。
在上述的能精确检测轴承工况的一体式轴承座中，所述的第一PCB板和轴承之间设有第一位移传感器。
在上述的能精确检测轴承工况的一体式轴承座中，所述的后端盖上设有两个沿后端盖的中心线对称设置的PCB板定位凹槽，在第一PCB板上设有两个沿第一PCB板中心线对称设置的第一定位卡块，所述的第一定位卡块卡入到PCB板定位凹槽中，在其中一个第一定位卡块上设有第一温度传感器，另一个第一定位卡块上设有第二温度传感器，所述的第一加速规位于其中一个第一定位卡块上。
在上述的能精确检测轴承工况的一体式轴承座中，在前端盖和轴套之间设有直接对应轴承外圈和/或内圈从而能检测轴承外圈和/或内圈温度的第二轴承工况检测机构。
在上述的能精确检测轴承工况的一体式轴承座中，所述的第二轴承工况检测机构包括与靠近前端盖的轴承的外圈位置相对应的第三温度传感器，以及与靠近前端盖的轴承的内圈位置相对应的第四温度传感器，第二轴承工况检测机构还包括第二PCB板，所述的第二PCB板上设有两个沿第二PCB板中心线对称设置的两个第二定位卡块，在其中一个第二定位卡块上设有第三温度传感器，在另一个第二定位卡块上设有第四温度传感器，在其中一个第二定位卡块上设有第二加速规，第二PCB板和轴承之间设有第二位移传感器。
在上述的能精确检测轴承工况的一体式轴承座中，所述的轴套内壁上设有隔圈，隔圈的两侧分别设有至少一个轴承，所述的隔圈和轴承之间设有至少一个形变圈。
在上述的能精确检测轴承工况的一体式轴承座中，所述的形变圈呈环形且位于隔圈靠近后端盖的一侧，该形变圈的一侧与轴承外圈顶紧配合。
在上述的能精确检测轴承工况的一体式轴承座中，所述的轴套外壁设有能连接冷却介质的冷却部。
在上述的能精确检测轴承工况的一体式轴承座中，所述的冷却部为呈螺旋状的凹槽，该凹槽的两端分别延伸至轴套的两端。
与现有的技术相比，本发明的优点在于：
1、本发明能直接检测出工作状态下的轴承的温度，相对于现有技术通过检测轴套的温度来判断轴承的温度，检测结果更准确，更可靠；此外，本发明直接将轴承与前、后端盖安装连接，形成一体式结构，实际上省略了用户选型配装的工序，从而能提高生产效率。
2、通过设置多个温度传感器，能得到多点温度，对位于轴套中的前后两端轴承的外圈和内圈温度均能得到准确的反应。
3、设置加速规后，能够检测出主轴的震动，从而判断轴承承受的震动。
4、位移传感器的设置，可以通过主轴的位移偏差，得到轴承的磨损数据或精度寿命，两个位移传感器对称设置，能够分析主轴的倾斜度，从而获悉轴承在工作中的状态。
5、通过在轴套内设置隔圈和形变圈，将轴承热胀冷缩产生的尺寸变化得到补偿，使轴承能够在最佳的工作状态下工作，从而提高轴承使用寿命。
6、对轴套设置冷却部，使轴套能够在工作中降温，过热传导作用，降低轴承温升及內外圈温差，使轴承工作稳定，进一步延 长轴承的使用寿命。
本发明的其它优点、目标和特征将部分通过下面的说明体现，部分还将通过对本发明的研究和实践而为本领域的技术人员所理解。
附图说明
图1是发明的外部示意图。
图2是图1的A-A剖视图。
图3是图1的B-B剖视图。
图4是图1的E-E剖视图。
图5是本发明的爆炸图。
图中：轴套1、主轴1a、定位圈1b、轴承2、后端盖3、轴套止挡部3a、前端盖4、轴承工况检测器5、第一轴承工况检测机构6、第一温度传感器7、第二温度传感器8、第一PCB板9、第一传感器定位圈9a、第一加速规10、第一位移传感器11、PCB板定位凹槽12、第一定位卡块13、温度传感器安装孔13a、加速规安装孔13b、定位螺孔13c、第二轴承工况检测机构14、第三温度传感器15、第四温度传感器16、第二PCB板17、第二传感器定位圈17a、第二定位卡块18、第二加速规19、第二位移传感器20、隔圈21、形变圈22、冷却部23。
具体实施方式
下面结合附图对本发明作进一步说明。
如图1和图5所示，一种能精确检测轴承工况的一体式轴承座，包括轴套1，轴套1呈筒状，所述的轴套1内设有若干轴承2，轴套1的两端分别设有后端盖3和前端盖4。在本实施例中，轴承2的数量不做限定，本领域技术人员可以根据实际工作的需要，对轴承的数量做调整，轴承的外圈与轴套1的内壁顶紧配合，轴 承2的内圈套设在主轴1a上并与主轴连接，在主轴1a转动时，轴承2的内圈也同步转动。关于轴套1与前端盖4和后端盖3的连接，可以采用螺接，销接或卡接等方式，此为本领域技术人员的惯用手段，在本实施例中，后端盖3上设有轴套止挡部3a，轴套1套设在后端盖3上且端部与轴套止挡部3a抵靠。
结合图2所示，所述的轴套1内设有直接对应轴承2外圈和/或内圈从而能检测轴承2外圈和/或内圈温度的轴承工况检测器5。在本实施例中，由于轴承工况检测器5直接与轴承2的内圈和/或外圈对应，因此，测得的温度直接反应出轴承2的内圈和/或外圈，从而得到准确的测试数据。
在本实施例中，结合图3所示，轴承工况检测器5包括位于后端盖3和轴套1之间的直接对应轴承2外圈和/或内圈从而能检测轴承2外圈和/或内圈温度的第一轴承工况检测机构6。该第一轴承工况检测机构6直接检测到靠近后端盖3的轴承2的外圈和/或内圈的温度。
结合图4所示，轴承工况检测器5也可以是设置在前端盖4和轴套1之间设有直接对应轴承2外圈和/或内圈从而能检测轴承2外圈和/或内圈温度的第二轴承工况检测机构14。
或者，轴承工况检测器5可以是第一轴承工况检测机构6和第二轴承工况检测机构14，两者的结构如上所述。也就是说，轴承工况检测器5包括三种方式，单独的第一轴承工况检测机构6，单独的第二轴承工况检测机构14，以及第一轴承工况检测机构6和第二轴承工况检测机构14的结合。
第一轴承工况检测机构6包括与靠近后端盖3的轴承2的外圈位置相对应的第一温度传感器7，以及与靠近后端盖3的轴承2的内圈位置相对应的第二温度传感器8。其中，第一温度传感器7直接检测到轴承2外圈的温度，第二温度传感器8直接检测到轴承2内圈的温度。
由于轴承2外圈在工作时处于相对静止，第一温度传感器7可以与轴承2外圈直接接触，从而反应出轴承2外圈的温度，可以使用市售的热电偶，第一温度传感器7也可以不与轴承2外圈接触，采用市售的红外线温度计或红外线温度探头。轴承2内圈在工作时随主轴1a转动，不宜与轴承2内圈直接接触，优选采用市售的红外线温度计或红外线温度探头。
第一轴承工况检测机构6还包括与后端盖3连接的第一PCB板9，第一温度传感器7和第二温度传感器8设置在第一PCB板9上，本领域技术人员应当知晓，PCB板上可以印刷电路，从而与第一温度传感器7和第二温度传感器8直接电连接，节省布线，本领域技术人员在本实施例公开的基础上，应当知晓用第一PCB板9和第一温度传感器7和第二温度传感器8进行电连接的结构和方法，在此不再赘述。
第一PCB板9上还设有第一加速规10，第一加速规10用于测试整个轴承座的震动。第一PCB板9和轴承2之间设有第一位移传感器11，第一位移传感器11用于检测主轴1a的偏移度，从而可以分析出轴承2与主轴1a之间的位移偏差。在本实施例中，第一加速规10和第一位移传感器11均为现有技术，可采用市售产品。
后端盖3上设有两个沿后端盖3的中心线对称设置的PCB板定位凹槽12，在第一PCB板9上设有两个沿第一PCB板9中心线对称设置的第一定位卡块13，当然，两个第一定位卡块13也可以相互间隔一定角度如90°、120°这样设置，所述的第一定位卡块13卡入到PCB板定位凹槽12中，在其中一个第一定位卡块13上设有第一温度传感器7，另一个第一定位卡块13上设有第二温度传感器8，所述的第一加速规10位于其中一个第一定位卡块13上。
在本实施例中，第一PCB板9上设有用于安装第一加速规10、 第一温度传感器7和第二温度传感器8的通孔或凹槽，第一PCB板9上还设有螺纹孔，用于和后端盖3螺接固定，当第一加速规10与第一PCB板9后，后端盖3上的震动直接传递给第一PCB板9，第一加速规10获得震动的数据。
具体的说，两个第一定位卡块13上分别设有温度传感器安装孔13a、加速规安装孔13b和定位螺孔13c，第一温度传感器7和第二温度传感器8安装在温度传感器安装孔13a上，第一加速规10安装在加速规安装孔13b上，每个第一定位卡块13上至少设有一个定位螺孔13c，定位螺孔13c中螺入螺栓后与后端盖3形成固定连接。
如上所述，第一轴承工况检测机构6可以获得轴承外圈和内圈的温度、靠近后端盖3一侧的主轴1a的位置偏移量的数据以及后端盖3震动的数据，但无法获得主轴1a靠近前端盖4一侧的位置偏移量及前端盖4的震动的数据，且当轴承2的数量在两个以上时，获得的也仅是靠近后端盖3一侧的轴承2的温度。显然，这个数据缺乏全面性。为此，在本实施例中，作为一种优选的方案，结合图4所示，在前端盖4和轴套1之间设有直接对应轴承2外圈和/或内圈从而能检测轴承2外圈和/或内圈温度的第二轴承工况检测机构14。
具体的说，第二轴承工况检测机构14包括与靠近前端盖4的轴承2的外圈位置相对应的第三温度传感器15，以及与靠近前端盖4的轴承2的内圈位置相对应的第四温度传感器16，第二轴承工况检测机构14还包括第二PCB板17，所述的第二PCB板17上设有两个沿第二PCB板17中心线对称设置的两个第二定位卡块18，在其中一个第二定位卡块18上设有第三温度传感器15，在另一个第二定位卡块18上设有第四温度传感器16，在其中一个第二定位卡块18上设有第二加速规19，第二PCB板17和轴承2之间设有第二位移传感器20。
第二PCB板17的其他具体结构，可以参照第一PCB板9，此处不做赘述。
另外，申请人经过大量的试验发现，当第一位移传感器11和第二位移传感器20的位置相对固定时，能够得到更为精确的测量数据，因此，在第一PCB板9上固定连接有一个呈环形的第一传感器定位圈9a，第一传感器定位圈9a上设有用于安装第一位移传感器11的通孔，在第二PCB板17固定连接有一个呈环形的第二传感器定位圈17a，第二传感器定位圈17a上设有用于安装第二位移传感器20的通孔。
申请人还发现，由于第一位移传感器11和第二位移传感器20位于主轴1a的两端，因此通过第一位移传感器11和第二位移传感器20收集的数据比较，可以获得主轴1a的倾斜度的数据。
通常来说，主轴1a上设置的轴承2至少有两个，或者更多，本实施例提供了一种将轴承进行分组组装，从而使轴承2的工况及工作性能能够得到提升的结构，结合图2和图5所示，轴套1内壁上设有隔圈21，隔圈21凸出于轴套1的内壁，与轴套1一体成型，其厚度与轴承2外圈厚度相对应，也即位置对应，隔圈21的两侧分别设有至少一个轴承2，所述的隔圈21和轴承2之间设有至少一个形变圈22。在本实施例中，前端盖4通过顶紧螺母与轴套1形成连接，将前端盖4与隔圈21之间的轴承2形成轴向定位，在主轴1a转动过程中，主轴1a和轴承2均会发热，由于热胀冷缩的作用，轴承2的轴向尺寸也会相应的发生变化，也意味着轴承内外圈温度不一样造成内外圈尺寸变化不一致，导致轴承预紧力产生变化，影响轴承2的工作性能。
在本实施例中，形变圈22呈环形，套设在主轴1a上，且位于隔圈21和轴承2之间，形变圈22能够产生轴向的形变，从而吸收轴承2由于热胀冷缩所产生的轴向形变，可保持轴承2预紧力的稳定性，持续的保持良好的工作性能。
形变圈22可以是强力弹簧、弹性垫片，也可以是采用软金属制作的金属环。
优选，形变圈22呈环形且位于隔圈21靠近后端盖3的一侧，该形变圈22的一侧与轴承2外圈顶紧配合。更优选的方案，在主轴1a上还套设有一个定位圈1b，定位圈1b与隔圈21的位置相对应，且定位圈16与轴承2的内圈厚度相配适，定位圈1b的两侧分别与一个轴承2的内圈顶紧配合，该定位圈1b为软金属制作。定位圈1b与隔圈21之间具有间隙。
本实施例还提供了一种用于给轴套1降温继而给轴承2降温的结构，即，轴套1外壁设有能连接冷却介质的冷却部23。冷却部23上可以绕设冷却盘管，或者通入冷却介质如冷却油、冷却水、冷却空气，从而形成换热。
优选方案，在本实施例中，冷却部23为呈螺旋状的凹槽，该凹槽的两端分别延伸至轴套1的两端，在凹槽中通入冷却介质，即可对轴承2进行换热，调节轴承内外圈的温差，降低轴承内外圈尺寸的热形变。
当然，冷却部23也可以是其他形状的凹槽，如呈相互连通的环形结构，同样也能起到换热效果。冷却部23也可以是一个夹套。
本领域技术人员应当理解，当冷却部23为凹槽结构时，需要在凹槽外侧或者说是在轴套1外部套设密封套，将冷却部23形成一个相对封闭的空间。
本发明的工作原理是：
第一温度传感器7、第二温度传感器8、第一加速规10和第一位移传感器11分别安装到第一PCB板9上，第三温度传感器15、第四温度传感器16、第二加速规19和第二位移传感器20分别安装到第二PCB板17上。
形变圈22装入到轴套1靠近前端盖4的一侧，轴承2装入到轴套1的隔圈21的两侧，轴承的数量根据具体工况及对应的主轴 1a的长度进行设定，第一PCB板9与后端盖3固定连接，第二PCB板17与前端盖4固定连接，后端盖3和前端盖4分别与轴套1固定连接，完成轴承座安装。
主轴1a插入到轴套1中，与轴承2内圈固定，当主轴1a工作时，通过第一温度传感器7和第二温度传感器8可直接测得靠近后端盖3一侧的轴承外圈和内圈的温度，通过第三温度传感器15和第四温度传感器16可直接测得靠近前端盖4一侧的轴承外圈和内圈的温度。
通过第一加速规10可测得主轴1a靠近后端盖3一侧的震动，通过第二加速规19可测得主轴1a靠近前端盖4一侧的震动。
通过第一位移传感器11可测得主轴1a靠近后端盖3一侧的的位移变化，通过第二位移传感器20可测得主轴1a靠近前端盖4一侧的位移变化，通过第一位移传感器11和第二位移传感器20的比较，可测得主轴1a的倾斜度。
本文中所描述的具体实施例仅仅是对本发明精神作举例说明。本发明所属技术领域的技术人员可以对所描述的具体实施例做各种各样的修改或补充或采用类似的方式替代，但并不会偏离本发明的精神或者超越所附权利要求书所定义的范围。
尽管本文较多地使用了轴套1、主轴1a、定位圈1b、轴承2、后端盖3、轴套止挡部3a、前端盖4、轴承工况检测器5、第一轴承工况检测机构6、第一温度传感器7、第二温度传感器8、第一PCB板9、第一传感器定位圈9a、第一加速规10、第一位移传感器11、PCB板定位凹槽12、第一定位卡块13、温度传感器安装孔13a、加速规安装孔13b、定位螺孔13c、第二轴承工况检测机构14、第三温度传感器15、第四温度传感器16、第二PCB板17、第二传感器定位圈17a、第二定位卡块18、第二加速规19、第二位移传感器20、隔圈21、形变圈22、冷却部23等术语，但并不排除使用其它术语的可能性。使用这些术语仅仅是为了更方便地 描述和解释本发明的本质，把它们解释成任何一种附加的限制都是与本发明精神相违背的。

Claims (13)

  1. 一种能精确检测轴承工况的一体式轴承座，包括轴套(1)，所述的轴套(1)内设有若干轴承(2)，轴套(1)的两端分别设有后端盖(3)和前端盖(4)，其特征在于，所述的轴套(1)内设有直接对应轴承(2)外圈和/或内圈从而能检测轴承(2)外圈和/或内圈温度的轴承工况检测器(5)。
  2. 根据权利要求1所述的能精确检测轴承工况的一体式轴承座，其特征在于，所述的轴承工况检测器(5)包括位于后端盖(3)和轴套(1)之间的直接对应轴承(2)外圈和/或内圈从而能检测轴承(2)外圈和/或内圈温度的第一轴承工况检测机构(6)。
  3. 根据权利要求2所述的能精确检测轴承工况的一体式轴承座，其特征在于，所述的第一轴承工况检测机构(6)包括与靠近后端盖(3)的轴承(2)的外圈位置相对应的第一温度传感器(7)，以及与靠近后端盖(3)的轴承(2)的内圈位置相对应的第二温度传感器(8)。
  4. 根据权利要求3所述的能精确检测轴承工况的一体式轴承座，其特征在于，所述的第一轴承工况检测机构(6)还包括与后端盖(3)连接的第一PCB板(9)，第一温度传感器(7)和第二温度传感器(8)与第一PCB板(9)连接。
  5. 根据权利要求4所述的能精确检测轴承工况的一体式轴承座，其特征在于，所述的第一PCB板(9)上还设有第一加速规(10)。
  6. 根据权利要求4所述的能精确检测轴承工况的一体式轴承座，其特征在于，所述的第一PCB板(9)和轴承(2)之间设有第一位移传感器(11)。
  7. 根据权利要求5所述的能精确检测轴承工况的一体式轴承座，其特征在于，所述的后端盖(3)上设有两个沿后端盖(3)的中心线对称设置的PCB板定位凹槽(12)，在第一PCB板(9)上设有两个沿第一PCB板(9)中心线对称设置的第一定位卡块(13)，所述的第一定位卡块(13)卡入到PCB板定位凹槽(12) 中，在其中一个第一定位卡块(13)上设有第一温度传感器(7)，另一个第一定位卡块(13)上设有第二温度传感器(8)，所述的第一加速规(10)位于其中一个第一定位卡块(13)上。
  8. 根据权利要求1所述的能精确检测轴承工况的一体式轴承座，其特征在于，在前端盖(4)和轴套(1)之间设有直接对应轴承(2)外圈和/或内圈从而能检测轴承(2)外圈和/或内圈温度的第二轴承工况检测机构(14)。
  9. 根据权利要求1所述的能精确检测轴承工况的一体式轴承座，其特征在于，所述的第二轴承工况检测机构(14)包括与靠近前端盖(4)的轴承(2)的外圈位置相对应的第三温度传感器(15)，以及与靠近前端盖(4)的轴承(2)的内圈位置相对应的第四温度传感器(16)，第二轴承工况检测机构(14)还包括第二PCB板(17)，所述的第二PCB板(17)上设有两个沿第二PCB板(17)中心线对称设置的两个第二定位卡块(18)，在其中一个第二定位卡块(18)上设有第三温度传感器(15)，在另一个第二定位卡块(18)上设有第四温度传感器(16)，在其中一个第二定位卡块(18)上设有第二加速规(19)，第二PCB板(17)和轴承(2)之间设有第二位移传感器(20)。
  10. 根据权利要求1所述的能精确检测轴承工况的一体式轴承座，其特征在于，所述的轴套(1)内壁上设有隔圈(21)，隔圈(21)的两侧分别设有至少一个轴承(2)，所述的隔圈(21)和轴承(2)之间设有至少一个形变圈(22)。
  11. 根据权利要求10所述的能精确检测轴承工况的一体式轴承座，其特征在于，所述的形变圈(22)呈环形且位于隔圈(21)靠近后端盖(3)的一侧，该形变圈(22)的一侧与轴承(2)外圈顶紧配合。
  12. 根据权利要求1所述的能精确检测轴承工况的一体式轴承座，其特征在于，所述的轴套(1)外壁设有能连接冷却介质的 冷却部(23)。
  13. 根据权利要求12所述的能精确检测轴承工况的一体式轴承座，其特征在于，所述的冷却部(23)为呈螺旋状的凹槽，该凹槽的两端分别延伸至轴套(1)的两端。
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