CN216205793U - Device for detecting floating amount of floating shaft of motor under axial float - Google Patents
Device for detecting floating amount of floating shaft of motor under axial float Download PDFInfo
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- CN216205793U CN216205793U CN202122509314.2U CN202122509314U CN216205793U CN 216205793 U CN216205793 U CN 216205793U CN 202122509314 U CN202122509314 U CN 202122509314U CN 216205793 U CN216205793 U CN 216205793U
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- rotary encoder
- rack
- motor
- floating
- rotating shaft
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Abstract
The utility model relates to the field of machinery. The utility model provides a motor floating shaft is buoyancy detection device under axial float, includes the motor shaft, still includes rotary encoder, slider, locating piece, base, gear, rack, digit percentage table, and motor shaft one end is connected with rotary encoder, and the rotary encoder lower extreme is provided with the slider, and the slider lower extreme is provided with the locating piece, and the locating piece lower extreme is provided with the base, and the lower extreme of rotary encoder non-load side bearing is provided with the gear, and the gear lower extreme is provided with the rack, and the gear sets up with the rack toothing, and the rack below is provided with the digit percentage table. The device ensures the reliable and stable operation of the equipment.
Description
Technical Field
The utility model relates to the field of machinery, in particular to a device for detecting the floating amount of a floating shaft of a motor under axial float.
Background
The large motor adopts a sliding bearing, the rotating shaft adopts an oil jacking mode to realize floating in the operation process, the lubricating form of the sliding bearing is liquid in the operation process, the forming condition is severe, the rotating shaft is supported by the dynamic pressure of lubricating oil to form a floating state, and the liquid oil jacking state is formed. Under the no-load and load state of the rotating shaft, the dynamic pressure of the sliding bearing is different, different floating ranges are arranged at different positions, and the phenomenon of bearing grinding of the rotating shaft and the sliding bearing can occur when the maximum floating range is exceeded. The floating amount monitoring of the rotating shaft is very important, but because the rotating shaft of the motor has a certain amount of axial float and is in a rotating state in the running process, the monitoring of the radial floating amount of the rotating shaft is difficult and cannot be implemented. The axial float state of the rotating shaft is changed into the axial static state, the rotating state of the rotating shaft is changed into the non-rotating state, the float amount of the rotating shaft is monitored by using a digital dial indicator at the moment, the minimum value of the float amount of 0.04mm is set for alarming, the parking is interlocked, and the reliable and stable operation of equipment is ensured.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems and provides a device for detecting the floating amount of a floating shaft of a motor under axial float.
The purpose of the utility model is realized as follows: the utility model provides a motor floating shaft is buoyancy detection device under axial float, includes the motor shaft, still includes rotary encoder, slider, locating piece, base, gear, rack, digit percentage table, and motor shaft one end is connected with rotary encoder, and the rotary encoder lower extreme is provided with the slider, and the slider lower extreme is provided with the locating piece, and the locating piece lower extreme is provided with the base, and the lower extreme of rotary encoder non-load side bearing is provided with the gear, and the gear lower extreme is provided with the rack, and the gear sets up with the rack toothing, and the rack below is provided with the digit percentage table.
Further, the motor rotating shaft is connected with the rotating shaft of the rotary encoder through a coupler.
Furthermore, the rack is fixed at one end of the positioning block, which is far away from the motor rotating shaft.
Furthermore, a slider groove is formed below the slider and is formed in the upper end of the positioning block.
Further, the digital dial indicator is fixed on the base.
The utility model has the beneficial effects that: the device changes the axial float state of the rotating shaft into the axial static state, changes the rotating state of the rotating shaft into the non-rotating state, enables the radial float quantity to be measurable, utilizes the digital dial indicator to detect the float quantity of the rotating shaft, sets the minimum value of the float quantity of 0.04mm for alarming, and prevents 'tile grinding' during interlocking parking, thereby ensuring the reliable and stable operation of the equipment.
Drawings
The utility model is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic view of a rotary encoder according to the present invention.
Fig. 2 is a schematic view of the overall structure of the present invention.
Fig. 3 is a front view of the rack and pinion mechanism.
Fig. 4 is a left side view of the rack and pinion mechanism.
Fig. 5 is a front view of the rotary encoder.
Fig. 6 is a left side view of the rotary encoder.
The device comprises a motor rotating shaft 1, a rotary encoder 2, a sliding block 3, a positioning block 4, a base 5, a gear 6, a rack 7, a digital dial indicator 8, a connecting rod 9, a rack fixing bolt hole 10, a housing 11, a load side bearing 12, a non-load side bearing 13, an end cover 14, a rotating shaft 15, a sliding block groove 16, a motor rotating shaft axial movement direction, b motor rotating shaft rotating direction and c motor rotating shaft radial movement direction under dynamic pressure.
Detailed Description
The device can monitor the floating amount of the rotating shaft, set the minimum value of 0.04mm for alarming, and prevent the generation of the tile grinding phenomenon by interlocking parking, thereby ensuring the reliable and stable operation of equipment.
The device adopts a method of a gear rack and a rotary encoder transmission mechanism, changes the axial float state of the rotating shaft into an axial static state, changes the rotating state of the rotating shaft into a non-rotating state, and monitors the radial float amount of the rotating shaft by measuring the radial displacement through a digital dial indicator.
The utility model provides a motor floating shaft is buoyancy detection device under axial float, includes the motor shaft, still includes rotary encoder, slider, locating piece, base, gear, rack, digital percentage table, and motor shaft one end is connected with rotary encoder, and the motor shaft is connected together through model MS26 single section diaphragm coupling and rotation converter hub connection. The rotary encoder lower extreme is provided with the slider (slider and the integrative preparation of rotary transformer), and the slider lower extreme is provided with the locating piece, and the locating piece lower extreme is provided with the base, and the lower extreme that rotary encoder kept away from motor shaft one end is provided with the gear through the connecting rod, and the gear lower extreme is provided with rack (10 mm), and the gear sets up with the rack meshing, and the rack below is provided with digital percentage table (0-100 x 0.01 concentrator standard MODBUS agreement RTU). The digital dial indicator is arranged in the middle of the rack.
The rotary encoder consists of a load side bearing, a non-load side bearing, a load side end cover, a rotating shaft, a sliding block and a shell. The rotary encoder is internally provided with a rotating shaft, one end of the rotary encoder, which is close to the rotating shaft of the motor, is a load side bearing, one end of the rotary encoder, which is far away from the rotating shaft of the motor, is a non-load side bearing, a shell is arranged outside the rotary encoder, a sliding block is arranged below the shell, a sliding block groove is arranged below the sliding block, and an end cover is arranged outside the load side bearing. Through the connection, the rotating state of the rotating shaft is converted into the static state. The slide block can enable the rotary converter to realize axial movement.
The rack is fixed at one end of the positioning block far away from the motor rotating shaft through a bolt.
The digital dial indicator is fixed on the base through the magnetic base.
When the motor is in normal operation, the motor rotating shaft is in a rotating state, and the rotating state of the motor rotating shaft is changed into a non-rotating state through the rotary encoder (the rotary encoder shaft and the motor rotating shaft rotate synchronously, and the rotary encoder body is in a static state).
When the rotating shaft of the motor axially moves, the sliding block on the rotary encoder axially moves along with the motor shaft in the sliding block groove during axial transmission. Through the gear additionally arranged on the rotary encoder and the rack on the sliding block, the axial movement of the motor rotating shaft is changed into a static state (because the rack does not have the axial movement at the moment), the rack only has radial displacement, the displacement of the rack is monitored through a digital dial indicator, and the radial floating amount of the motor rotating shaft can be obtained.
The axial float state of the rotating shaft is changed into an axial static state and the rotating state of the rotating shaft is changed into a non-rotating state by a method of a gear rack and a rotary encoder transmission mechanism, at the moment, the float amount of the rotating shaft is monitored by a digital dial indicator, the minimum value of the float amount of 0.04mm is set for alarming, the parking is interlocked, and the reliable and stable operation of the equipment is ensured. The lower limit of the digital dial indicator is set to be 0.04mm, when the lower limit is reached, the digital dial indicator sends a signal, the signal is transmitted to the existing motor control system, and the control system stops the vehicle in an interlocking mode.
The above description is only an embodiment of the present invention, but the structural features of the present invention are not limited thereto, and any changes or modifications within the scope of the present invention by those skilled in the art are covered by the present invention.
Claims (5)
1. The utility model provides a motor floating shaft is buoyancy detection device under axial float, includes motor shaft, its characterized in that: the rotary encoder is characterized by further comprising a rotary encoder, a sliding block, a positioning block, a base, a gear, a rack and a digital dial indicator, wherein one end of a motor rotating shaft is connected with the rotary encoder, the sliding block is arranged at the lower end of the rotary encoder, the positioning block is arranged at the lower end of the sliding block, the base is arranged at the lower end of the positioning block, the gear is arranged at the lower end of a non-load side bearing of the rotary encoder, the rack is arranged at the lower end of the gear, the gear and the rack are meshed, and the digital dial indicator is arranged below the rack.
2. The device for detecting the floating amount of the floating shaft of the motor under the axial float according to claim 1, wherein: the motor rotating shaft is connected with the rotating shaft of the rotary encoder through a coupler.
3. The device for detecting the floating amount of the floating shaft of the motor under the axial float according to claim 1, wherein: the rack is fixed at one end of the positioning block far away from the motor rotating shaft.
4. The device for detecting the floating amount of the floating shaft of the motor under the axial float according to claim 1, wherein: a slider groove is arranged below the slider and is arranged at the upper end of the positioning block.
5. The device for detecting the floating amount of the floating shaft of the motor under the axial float according to claim 1, wherein: the digital dial indicator is fixed on the base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122509314.2U CN216205793U (en) | 2021-10-19 | 2021-10-19 | Device for detecting floating amount of floating shaft of motor under axial float |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122509314.2U CN216205793U (en) | 2021-10-19 | 2021-10-19 | Device for detecting floating amount of floating shaft of motor under axial float |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216205793U true CN216205793U (en) | 2022-04-05 |
Family
ID=80883995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122509314.2U Active CN216205793U (en) | 2021-10-19 | 2021-10-19 | Device for detecting floating amount of floating shaft of motor under axial float |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216205793U (en) |
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2021
- 2021-10-19 CN CN202122509314.2U patent/CN216205793U/en active Active
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