CN218524098U - Shaft running measuring device for herringbone-tooth speed reducer - Google Patents
Shaft running measuring device for herringbone-tooth speed reducer Download PDFInfo
- Publication number
- CN218524098U CN218524098U CN202222262335.3U CN202222262335U CN218524098U CN 218524098 U CN218524098 U CN 218524098U CN 202222262335 U CN202222262335 U CN 202222262335U CN 218524098 U CN218524098 U CN 218524098U
- Authority
- CN
- China
- Prior art keywords
- speed reducer
- measuring device
- integrated electric
- shaft
- sensor
- Prior art date
- Legal status (The legal status 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 status listed.)
- Active
Links
Images
Landscapes
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The utility model relates to a measuring device is scurried to the reduction gear shaft, especially herringbone tooth reduction gear shaft scurries measuring device. The utility model provides a herringbone tooth speed reducer shaft scurries measuring device is including adorning the integral type electricity turbine sensor on speed reducer gear shaft one side end cover, and integral type electricity turbine sensor is connected with data acquisition unit, and integral type electricity turbine sensor sets up to a plurality ofly, adorns respectively at the position that corresponds with the axis direction of position under test and there is the distance with the position under test. The integrated electric turbine sensors are arranged into two, one end of one integrated electric turbine sensor is far away from the rotation center of the gear shaft, and one end of the other integrated electric turbine sensor is far away from the outer ring of the bearing. The speed reducer end cover is processed with the screw hole, and the outer thread mosquito of integral type electricity turbine sensor is connected with the speed reducer end cover. The measuring device has the advantages that: the method can effectively measure the actual displacement of shaft channeling of the herringbone gear shaft system, has high measurement precision, does not contact with a measured piece, and has strong anti-interference performance.
Description
Technical Field
The utility model relates to a measuring device is scurried to the reduction gear shaft, especially a herringbone tooth reduction gear shaft scurries measuring device.
Background
Under the condition of normal meshing of the herringbone gear speed reducer, axial forces generated by a pair of left-handed gears and right-handed gears are mutually offset, and a shaft system is not stressed outwards. As a key part bearing for shafting rotation, the bearing only bears radial force under ideal conditions. However, due to various reasons such as machining errors, assembly deviations, and influences of related parts, axial forces exist. As the weakest retainer in the bearing assembly, the retainer is easy to damage under abnormal conditions, and the damage causes can be as follows: the axial force of a gear shaft of the herringbone gear speed reducer is overloaded, and the instantaneous impact is too large, so that the bearing retainer is damaged; the bearing model selection does not meet the requirement of the minimum load condition, so that the beads slip, and the retainer is damaged by external force due to sliding extrusion; the magnetic force center of the motor rotor is unstable, axial movement is caused, the axial movement of the speed reducer is caused, and the bearing retainer is damaged by external force on a shaft system.
The axial movement of the shaft system can be measured by certain devices or methods, the movement amount is identified, and whether the movement is normal or not is identified. How to measure data quickly and effectively is an important point in how to sort and analyze the data.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough and provide a herringbone tooth speed reducer axle and scurry measuring device, can measure inside shafting axial and scurry amount and relative displacement.
The utility model discloses a measuring device adopts following technical scheme:
a shaft channeling measuring device of a herringbone-tooth speed reducer comprises an integrated electric turbine sensor arranged on an end cover on one side of a gear shaft of the speed reducer, the integrated electric turbine sensor is connected with a data acquisition unit, and the integrated electric turbine sensors are arranged in a plurality of numbers, are respectively arranged at positions corresponding to the axis direction of a detected position and have distances with the detected position.
The measuring device has the beneficial effects that: the method can effectively measure the actual displacement of shaft channeling of the herringbone gear shaft system, has high measurement precision, does not contact with a measured piece, and has strong anti-interference performance.
The preferable scheme adopted by the measuring device is as follows:
the integrated electric turbine sensors are arranged in three numbers and are respectively arranged on the rotation center line of the gear shaft or the axial direction of the bearing outer ring or the axial direction of an eccentric sleeve additionally arranged on the bearing outer ring.
The integrated electric turbine sensors are arranged into two, one end of one integrated electric turbine sensor is far away from the rotation center of the gear shaft, and one end of the other integrated electric turbine sensor is far away from the outer ring of the bearing.
The speed reducer end cover is processed with the screw hole, and the outer thread mosquito of integral type electricity turbine sensor is connected with the speed reducer end cover.
The integrated eddy current sensor is respectively connected with a power supply and a G end and an A end of a data acquisition unit, and the data acquisition unit is connected with a data processor and a display; a resistor is connected in parallel between the G end and the A end of the data acquisition unit.
The parallel resistance is 250 ohms.
The utility model carries out secondary treatment, and can truly simulate the actual displacement of axial movement; whether the fixed shaft is fixed firmly enough can be checked; whether the balls of the bearings of the fixed shaft (including the free shaft) rotate at the designed central position of the outer ring of the bearing; maximum displacement of the free shaft in axial direction; the axial running curve is combined with a rolling process, the shaft running condition under various working conditions of no-load, steel biting, steady rolling, steel throwing and the like is calculated, and the relative position change of the inner ring and the outer ring of the bearing is calculated.
Drawings
FIG. 1 is a schematic diagram of the line connection of the signal acquisition equipment of the measuring device of the present invention.
FIG. 2 is a schematic view of a sensor mounting junction.
Fig. 3 is a schematic view of the structure of the threaded hole of the end cover.
FIG. 4 is a data analysis table diagram one.
FIG. 5 is a data analysis table diagram two.
Fig. 6 is a data analysis table diagram three.
Fig. 7 is a data analysis table diagram four.
Fig. 8 is a data analysis table diagram five.
Fig. 9 is a data analysis table diagram six.
Fig. 10 is a seventh data analysis table diagram.
Fig. 11 is a data analysis table diagram eight.
Fig. 12 is a data analysis table diagram nine.
Fig. 13 is a data analysis table diagram ten.
Fig. 14 is a data analysis table diagram eleven.
Fig. 15 is a data analysis table diagram twelve.
Fig. 16 is a data analysis table diagram thirteen.
Fig. 17 is a diagram showing an absolute distance trend of the bearing outer ring from the axial center position.
Fig. 18 is a partially enlarged view of fig. 7. (dot position measuring points are used as amplification sequence)
Fig. 19 is a partially enlarged view of fig. 7. (in time order of amplification)
FIG. 20 is a plot of the difference between the dynamic range and the dynamic range of the outer race of the bearing.
FIG. 21 is a diagram showing the movement locus of a measured point (two measured loci, upper and lower 2 lines).
FIG. 22 is a graph of axial and bearing outer race motion follow-up analysis.
The point dynamic variation is shown in FIG. 23.
Detailed Description
The invention is described in detail below with reference to the following examples and figures:
in the figure: the sensor comprises a sensor red line 1, a sensor green line 2, a sensor yellow line 3, a resistor 4, a data acquisition unit 5, an integrated eddy current sensor 6 and a power supply 7; the reducer comprises a reducer end cover 8, a gear shaft 9, a reducer box body 10, a free end 11, a positioning end 12, a first through hole 13, a second through hole 14 and a data processor 15.
A herringbone tooth speed reducer shaft channeling measuring device comprises an integrated electric turbine sensor 6 mounted on a speed reducer end cover worker on one side of a speed reducer gear shaft 9, the integrated electric turbine sensor 6 is connected with a data acquisition unit 5, the integrated electric turbine sensor 6 is arranged in a plurality of numbers, two integrated electric turbine sensors are arranged in the embodiment, one of the integrated electric turbine sensors is mounted on a first through hole 13, the other integrated electric turbine sensor is mounted on a second through hole 14, and the two integrated electric turbine sensors 6 are respectively mounted at positions corresponding to the axis direction of a measured position and have a distance with the position: the axis of the integrated electric turbine sensor 6 arranged on the through hole I13 of the end cover 8 of the speed reducer is flush with and corresponds to the thickness center direction of the bearing outer ring and keeps a distance; the axis of the integrated electric turbine sensor 6 arranged on the second through hole 14 of the end cover 8 of the speed reducer and the axis of the gear shaft are positioned on the same straight line and keep a distance.
If the bearing outer ring is provided with the eccentric sleeve, a third integrated electric turbine sensor 6 which corresponds to the bearing outer ring and is parallel or flush with the bearing outer ring can be arranged on the reducer end cover 8.
Threaded holes are processed on the end cover 8 of the speed reducer: the first through hole 13 and the second through hole 14 are respectively formed, and the outer screws of the two integrated electric turbine sensors 6 are respectively connected with the speed reducer end cover 8 through the first through hole 13 and the second through hole 14.
The integrated eddy current sensor 6 is respectively connected with the power supply 7 and the G end and the A end of the data acquisition unit 5, and the data acquisition unit 5 is connected with the data processor 15 and the display; and a resistor 4 of 2500 ohms is connected in parallel between the G end and the A end of the data acquisition unit.
A measurement method of a shaft run measurement device of a herringbone gear speed reducer is carried out according to the following steps: the external thread of the integrated electric turbine sensor 6 is connected with the end cover 8 of the speed reducer, the probe of the integrated electric turbine sensor 6 keeps a distance with the surface of a measured metal (a bearing or a shaft), when the distance between the measured metal and the sensor probe changes, the inductance of a coil in the sensor probe changes, the change of the inductance causes the amplitude change of the oscillation voltage of the oscillator, the oscillation voltage changing along with the distance is detected, filtered and linearly corrected to become a voltage proportional to displacement, and the absolute distance between the measured metal and the sensor probe is calculated.
Reading the displacement value through the data collector 5; axial running tracks and dynamic variation of a shaft system are simulated by acquiring axial float displacement of a speed reducer shaft system in real time.
The data generation trend graph truly shows the follow-up property of the free axis and the positioning axis. The free end 11 is the one shown in fig. 2 and the positioning end 12 is the one shown in fig. 2 (the outer ring of the bearing where the shaft is located is axially fixed and is called the positioning end of the shaft or the positioning shaft; the outer ring of the bearing where the shaft is located is not fixed and is called the free end of the shaft or the free shaft; the single shaft has two bearing positions, one bearing position is called the positioning shaft or the positioning end and the other bearing position is called the free shaft or the free end for the output shaft). The collected data is matched with the running conditions of the speed reducer, axial movement tracks under various working conditions are simulated, and the axial movement tracks are compared with theoretical curves to judge the running state of the shafting.
The sensitivity unit of the integrated electric turbine sensor 6 is: mA/micron, the integrated electric turbine sensor needs 24V power supply, and 250 omega precision resistors need to be matched when current division is started. The sampling frequency of the integrated electric turbine sensor 6 can be modified as required. The data generation trend graph can verify the positioning accuracy of the positioning shaft 12.
The integrated electric turbine sensor 6 is arranged on the end face of the speed reducer, and the integrated electric turbine sensor 6 is integrated by adopting a preamplifier and an eddy current sensor; and measuring the axial displacement of each shaft, the axial displacement of the bearing outer ring and the displacement of the parts which possibly axially move. And analyzing and processing the collected data to identify faults.
An integral electric turbine sensor 6 (preamplifier and eddy current sensor integration), signal wires, a power supply 7, a resistor 4, a data collector 5, a data processor 15, a spectrum display and other components are used. And threaded holes are processed in end covers of shafting blank covers of the speed reducer and used for installing eddy current sensors. 2 full threaded holes are processed in each blank cap: the position opposite to the axis is one, and the position opposite to the center of the end face of the bearing outer ring is one. And (3) debugging the sensitivity of the integrated electric turbine sensor 6, calculating a measurement range, and installing a sensor after the speed reducer is stopped. The sensor probe keeps a certain distance from the surface of the measured metal, when the distance between the measured metal and the sensor probe changes, the inductance of a coil in the sensor probe changes, the change of the inductance causes the amplitude change of the oscillation voltage of an oscillator, the oscillation voltage changing along with the distance is converted into a voltage quantity in direct proportion to displacement after wave detection, filtering and linear correction, and the absolute distance between the measured metal and the sensor probe is calculated.
The frequency of data collected by each sensor is adjustable, the data measured by a single sensor can be analyzed independently, and the axial movement track is simulated through a linear model. The data collected by every two sensors or a plurality of sensors (the sensors refer to a plurality of shafts, and at least two sensors are arranged on each shaft) can be analyzed in a plurality of groups of comparison.
The method can effectively measure the actual displacement of shaft running of the herringbone gear shaft system, has high measurement precision, does not contact with a measured piece, and has strong anti-interference performance.
The embodiment carries out secondary processing on the acquired data, and can truly simulate the actual displacement of the axial play; whether the fixed shaft or the fixed end is fixed firmly can be checked; whether the balls of the bearings of the fixed shaft (or the fixed end) and/or the free shaft (or the free end) rotate at the designed central position of the bearing outer ring; maximum displacement of the free shaft (or free end) in axial direction; the shaft play curve is combined with the rolling process, the shaft play condition under various working conditions such as no-load, steel biting, steady rolling, steel throwing and the like is calculated, and the relative position of the inner ring and the outer ring of the bearing is changed.
The application process of this embodiment is as follows:
and obtaining the axial maximum displacement of the shafting through theoretical calculation and on-site actual shafting prying. And customizing a special integrated eddy current sensor according to the distance between the end cover of the speed reducer and the axis and the end surface of the bearing outer ring. When the on-site shutdown is carried out, the sensor is installed on the end cover, the measuring loop is connected, the screwing depth of the sensor is debugged, and the original value absolute distance between the measured surface and the end surface of the sensor is recorded after the debugging is finished. After the speed reducer rotates, axial movement data under various working conditions are recorded in real time, and a time stamp of a data acquisition starting point is recorded, so that an axial movement curve and a rolling process curve can be conveniently contrasted and analyzed in a later period.
And carrying out secondary utilization on the acquired original data, and carrying out data analysis by using different calculation rules according to different requirements.
The parameters of the integrated eddy current sensor 6 are as follows: measuring range: 2mm, output form: 4-20mA output, thread specification: m16 × 1, shell length: 150mm, cable length: 5m tape armoring, linear range: 0.25-2.25mm, linear midpoint: 1.250mm, sensitivity: 8.000mA/mm, amplitude linearity: 0.8%, neutral point output value: 12.009mA, sensitivity bias: 1.3%, probe temperature drift: 0.05%/deg.C;
parameters of data collector 5: analog signal measurement frequency range: DC-40KHz, 24-bit A/D conversion, dynamic range: 96dB, amplitude accuracy: ± 2%, phase ± 3% (to 100 Hz), digital measurement frequency range: 0 Hz-20 KHz, frequency accuracy: 0.01%, acquisition logic: the method supports the collection modes of time, event triggering, rotating speed triggering and closing, and the single-channel FFT spectral line is required to reach 6400 lines at most and 8 channels.
Actual measurement data: data in the first 46 (see fig. 4) and the next several (see fig. 5-16) of 3000 sets of data analyses were read.
The absolute distance trend between the bearing outer ring and the axis position is shown in fig. 17, fig. 18 and fig. 19 (fig. 18 and fig. 19 are partial enlarged views, and the position of a red line in fig. 18 corresponds to the position of a 2556-th measuring point in fig. 6), the calculation method is changed to realize that the measured data is simulated into a curve, the axial movement tracks of the axis and the bearing outer ring are visually judged, the time stamp is vertically corresponding, and the follow-up property of the movement of the bearing outer ring and the axis is visually checked.
The trend of the absolute distance between the bearing outer ring and the axis position is shown in the attached figure 17, and the conclusion is that: the outer ring channeling range is 496.31 mu m; the axial channeling range is 400.03 μm.
The calculation method quickly integrates 3000 groups of data of axial movement of the axis and the bearing outer ring along the axial direction, conveniently checks the difference value and the times of the follow-up change distance of the axis and the bearing outer ring, and the maximum value of the relative displacement of the outer ring and the axis.
Claims (6)
1. The utility model provides a herringbone tooth speed reducer shaft scurries measuring device, includes the integral type electric turbine sensor of dress on speed reducer gear shaft one side end cover, its characterized in that: the integrated electric turbine sensors are connected with the data acquisition unit, and are arranged in a plurality of numbers, are respectively arranged at the positions corresponding to the axial direction of the detected position and have a distance with the position.
2. The herringbone tooth speed reducer shaft running measuring device of claim 1, wherein: the integrated electric turbine sensors are arranged in three numbers and are respectively arranged on the rotation center line of the gear shaft or the axial direction of the bearing outer ring or the axial direction of an eccentric sleeve additionally arranged on the bearing outer ring.
3. The herringbone tooth speed reducer shaft running measuring device of claim 1, wherein: the integrated electric turbine sensors are arranged into two, one end of one integrated electric turbine sensor is far away from the rotation center of the gear shaft, and one end of the other integrated electric turbine sensor is far away from the outer ring of the bearing.
4. The herringbone tooth speed reducer shaft running measuring device of claim 1, wherein: the speed reducer end cover is processed with the screw hole, and the outer thread mosquito of integral type electricity turbine sensor is connected with the speed reducer end cover.
5. A herringbone tooth speed reducer shaft running measuring device according to claim 1 or 2, characterized in that: the integrated eddy current sensor is respectively connected with a power supply and a G end and an A end of a data acquisition unit, and the data acquisition unit is connected with a data processor and a display; a resistor is connected in parallel between the G end and the A end of the data acquisition unit.
6. The herringbone tooth speed reducer shaft running measuring device of claim 3, wherein: the parallel resistance is 250 ohms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222262335.3U CN218524098U (en) | 2022-08-26 | 2022-08-26 | Shaft running measuring device for herringbone-tooth speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222262335.3U CN218524098U (en) | 2022-08-26 | 2022-08-26 | Shaft running measuring device for herringbone-tooth speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218524098U true CN218524098U (en) | 2023-02-24 |
Family
ID=85244577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222262335.3U Active CN218524098U (en) | 2022-08-26 | 2022-08-26 | Shaft running measuring device for herringbone-tooth speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218524098U (en) |
-
2022
- 2022-08-26 CN CN202222262335.3U patent/CN218524098U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102501137B (en) | Online monitoring device for radial rotation accuracy of main shaft | |
| US7322794B2 (en) | Method and apparatus for condition-based monitoring of wind turbine components | |
| US9404791B2 (en) | Lateral, angular and torsional vibration monitoring of rotordynamic systems | |
| CN106482627B (en) | A kind of testing stand and method for being used to measure bearing Radial windage | |
| CN107314893A (en) | A kind of modular multi-function rotor testbed | |
| JP5757936B2 (en) | Method for detecting structural anomalies in a mechanical assembly including a rotating member | |
| US8315826B2 (en) | Diagnostic method for a ball bearing, in particular for an angular-contact ball bearing, a corresponding diagnostic system, and use of the diagnostic system | |
| CN111259765B (en) | Order analysis method based on numerical control machine tool spindle current signal | |
| CN105466329A (en) | Non-contact engine turbine blade tip radial gap measurement method | |
| CN109632147A (en) | A kind of experimental bench measuring gear contact temperature | |
| CN111380468A (en) | Device and method for measuring rotor eccentricity and phase of steam turbine generator unit | |
| CN218524098U (en) | Shaft running measuring device for herringbone-tooth speed reducer | |
| CN108917916A (en) | A kind of measurement method of shaft absolute vibration | |
| CN114111526A (en) | High-precision water turbine main shaft seal circle measuring method and system | |
| CN115540732A (en) | Shaft run measuring device and method for herringbone-tooth speed reducer | |
| CN1247952C (en) | Measuring device and method of axial backlash in double row taper roll bearing having inner and outer spacer ring | |
| CN112834776A (en) | Novel non-contact rotating shaft rotating speed measuring device | |
| CN112108941A (en) | Device and method for detecting positioning precision and repeated positioning precision of triple fluted disc of numerical control tool rest | |
| CN210294481U (en) | Motor static performance testing device | |
| CN212807103U (en) | Data acquisition and signal processing device capable of checking multiple sensors | |
| JPH0543052B2 (en) | ||
| CN113701977B (en) | Method and system for measuring maximum value of relative vibration of rotor in all directions | |
| CN206002051U (en) | Device for measuring axial clearance and wind power generating set | |
| CN209802337U (en) | Measuring device for thickness of hydraulic generator thrust bearing oil film | |
| CN214041445U (en) | Device for measuring rotating speed and phase of small steam turbine and steam turbine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |