CN203021076U - Coiler with changeable bearing stiffness - Google Patents
Coiler with changeable bearing stiffness Download PDFInfo
- Publication number
- CN203021076U CN203021076U CN 201220655872 CN201220655872U CN203021076U CN 203021076 U CN203021076 U CN 203021076U CN 201220655872 CN201220655872 CN 201220655872 CN 201220655872 U CN201220655872 U CN 201220655872U CN 203021076 U CN203021076 U CN 203021076U
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- bearing
- coiler
- mandrel
- stiffness
- sensor
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Abstract
The utility model relates to a coiler with changeable bearing stiffness. The coiler with the changeable bearing stiffness comprises a core shaft. The core shaft is arranged inside a rack in a penetrating mode. A part of the rack is arranged inside a white sleeve. Two ends of the core shaft are exposed out of the rack. The coiler with the changeable bearing stiffness is characterized in that the part, arranged inside the rack, of the core shaft is sequentially connected with a bearing one, a bearing two, more than one assistant beating, a bearing three and a bearing four in a sleeved mode. The bearing one and the bearing two are arranged on a bearing seat one at the same time. Each assistant bearing is respectively arranged on each assistant bearing seat. The bearing three and the bearing four are arranged on a bearing seat two at the same time. The total gravity center of the core shaft and the white sleeve is arranged between the bearing three and the bearing four. A pressure source is connected with a control valve which is connected with each bearing. A sensor one detects vibration range of the core shaft when the core shaft rotates, and a sensor two detects deformation quantity of the core shaft when the core shaft rotates. The coiler with the changeable bearing stiffness can enable the coiler to work within ranges of different working rotating speeds, and improve dynamic response of the coiler when the coiler works during a variable speed working process.
Description
Technical field
The utility model relates to a kind of up-coiler of variable support stiffness, belongs to chemical fibre production facilities technical field.
Background technology
In chemical-fibres filaments was produced, high-speed winder was as the key equipment in Spinning Equipments, and its technology relates to a plurality of subjects such as machinery, electrical control, and its equipment investment accounts for 50%～60% of a whole set of chemical fiber machinery.The coiling chuck is the major part of up-coiler.It is the cantilever rotor system of a high speed hollow thin-wall, and during work, the coiling chuck is a variable speed, variable mass, change rigidity and the system that becomes excitation.Become rotor-support-foundation system when therefore, the high-speed winder system belongs to high speed rotary.In when work, during near machine critical speed, can produce larger vibration when the rotating speed of up-coiler, affect package quality.
Summary of the invention
The purpose of this utility model is to provide a kind of up-coiler that improves dynamic response.
in order to achieve the above object, the technical solution of the utility model has been to provide a kind of up-coiler of variable support stiffness, comprise mandrel, mandrel is arranged in frame, rack section is located in white cover, frame is exposed at the two ends of mandrel, wherein an end and motor link, the other end is captiveed joint with white cover, it is characterized in that: to overlapping successively away from the direction of motor, bearing one is arranged by the direction near motor outside mandrel is positioned at the part of frame, bearing two, at least one auxiliary bearing, bearing three and bearing four, bearing one and bearing two are positioned on bearing seat one simultaneously, each auxiliary bearing lays respectively on separately asessory shaft bearing, bearing three and bearing four are positioned on bearing seat two simultaneously, the total centre of gravity of mandrel and white cover is between bearing three and bearing four, bearing seat one, it is interference fit between the outer circumference surface of asessory shaft bearing and bearing seat two and frame inner wall, pressure source connects control cock, control cock connects auxiliary bearing, Oscillation Amplitude when being enclosed within vain the mandrel rotation by sensor one detection, detect the deformation quantity of frame when mandrel rotates by sensor two, sensor one and sensor two connection control system, opened and closed according to the signal control control cock that obtains by control system, pressure source is exerted pressure and then adjusts auxiliary bearing to the support stiffness of mandrel when mandrel rotates to auxiliary bearing via control cock.
Preferably, the position of described bearing three on described bearing seat two is adjustable.
Preferably, described bearing one, described bearing two, described bearing three or described bearing four are the deep groove ball bearing of stiffness variable bearing or conventional belt seal ring; When described bearing one, described bearing two, described bearing three or described bearing four were the stiffness variable bearing, described bearing one, described bearing two, described bearing three or described bearing four connected described pressure source via separately control cock respectively.
Preferably, described sensor one is edd current transducer, and edd current transducer is arranged in described white cover near the outer end of described motor one side, leaves the gap between the probe end face of edd current transducer and the outer circumference surface of described white cover.
Preferably, described sensor two is piezoelectric transducer, and piezoelectric transducer is fixedly mounted on described frame.
The utility model can make up-coiler work in different working speed scopes by the rigidity that changes bearing, in the variable speed working process when its working speed during near certain rank critical speed, adjust the rigidity of aiding support by the pressure feed system, make its dynamic response, do not affect the machine normal operation, be the magnitude of vibrations of up-coiler in its tolerance band, thereby improve the dynamic response of up-coiler.
The utility model has the advantages that: up-coiler is worked in different working speed scopes, in the variable speed working process when its working speed during near certain rank critical speed, by adjusting the support stiffness of aiding support, make its dynamic response not affect the machine normal operation, thus the dynamic response when improving up-coiler work.
Description of drawings
Fig. 1 is the utility model apparatus system schematic diagram;
Fig. 2 is a kind of alternative combinations scheme of the utility model device schematic diagram.
The specific embodiment
For the utility model is become apparent, hereby with preferred embodiment, and coordinate accompanying drawing to be described in detail below.Should be understood that these embodiment only to be used for explanation the utility model and be not used in restriction scope of the present utility model.Should be understood that in addition those skilled in the art can make various changes or modifications the utility model after the content of having read the utility model instruction, these equivalent form of values fall within the application's appended claims limited range equally.
As shown in Figure 1, the up-coiler of a kind of variable support stiffness of providing of the utility model comprise mandrel 2, overlap 3 in vain, bearing 1, bearing 28, auxiliary bearing 9, bearing 3 10, bearing 4 11, bearing seat 1, asessory shaft bearing 5, bearing seat 26 and frame 1 etc.Mandrel 2 links together with 3 interference of white cover, mandrel 2 is supported on bearing seat 1, asessory shaft bearing 5 and bearing seat 26 by bearing 1, bearing 28, auxiliary bearing 9, bearing 3 10 and bearing 4 11, by the interference fit between the outside both ends of the surface of bearing seat and frame 1 inside, bearing seat 1, asessory shaft bearing 5 and bearing seat 26 is fixed on frame 1.In the present embodiment, bearing 1, bearing 28, auxiliary bearing 9, bearing 3 10 and bearing 4 11 all adopt the stiffness variable bearing, bearing 1 and bearing 28 are positioned at that mandrel 2 connects an end of motors and on same bearing seat 1, bearing 4 11 is positioned at the front end of frame 1, bearing 3 10 position-adjustable and and bearing 4 11 be positioned on same bearing seat 26, auxiliary bearing 9 is as the position of aiding support between bearing seat 1 and bearing seat 26, and the center of gravity of mandrel 2 and white cover 3 must be between bearing 3 10 and bearing 4 11.The selection of five bearing bearing positions comprehensively draws through experiment and theoretical analysis.Auxiliary bearing 9 just starts when dynamic response exceeds tolerance band at work, can effectively change like this support stiffness and adapts to and improve dynamic response under the whole working speed state of up-coiler.Bearing 1, bearing 28, auxiliary bearing 9, bearing 3 10 and bearing 4 11 these five stiffness variable bearings pass through respectively the control cock 17 that pipeline 18 separately connects separately, all control cock 17 Bonding pressure sources 16, control all control cock 16 by control system 14, can change the support stiffness of five stiffness variable bearings.The support stiffness of bearing 1, bearing 28, bearing 3 10 and bearing 4 11 is default before up-coiler is started working, and auxiliary bearing 9 only provides support stiffness in some particular moment as aiding support when up-coiler is worked.Control system 14, control cock 17 and pressure source 16 are positioned at the up-coiler outside.The utility model can make up-coiler work in different working speed scopes by the support stiffness that changes bearing 1, bearing 28, bearing 3 10 and bearing 4 11, in the variable speed working process, when its working speed during near certain rank critical speed, by adjusting the support stiffness of aiding support 9, making its dynamic response not affect the machine normal operation is that the magnitude of vibrations of up-coiler is in its tolerance band.After up-coiler response is reduced to normal value, the support stiffness of auxiliary bearing 9 will be cancelled by control system 14.
Sensor 1 adopts edd current transducer, sensor 2 13 adopts piezoelectric transducer, edd current transducer can be fixed in white cover 3 near the outer end of motor one side and not contact with white cover 3, piezoelectric transducer is fixedly mounted on frame 1, and detecting demand according to system can suitably increase the quantity of two kinds of sensors and change corresponding installation site.
When the signal of sensor 1 and sensor 2 13 during greater than License Value, dynamic response when being mandrel 2 and white cover 3 work will exceed License Value, sensor is transferred to control system 14 with minimum detectable signal, control system 14 outputs a control signal to control cock 17, the dynamic response when control cock 17 is worked to improve up-coiler according to the support stiffness of signal change aiding support 9.
The rigidity of stiffness variable bearing be can independently be regulated and setting range different.Control cock 17 is independently to the adjusting of each stiffness variable bearing, can be simultaneously to four stiffness variable bearings, namely the pressure of bearing 1, bearing 28, bearing 3 10 and bearing 4 11 is made different adjustment and is obtained appropriate stiffness parameters under corresponding working speed scope.Auxiliary bearing 9 can carry out trace in the course of the work in real time as aiding support to be regulated, and conditioning signal is sent in real time by control system 14.
Bearing 1, bearing 28, bearing 3 10 and bearing 4 11 have been preset suitable rigidity value before work, auxiliary bearing 9 plays the supplemental support effect when work.In working process when the signal of sensor 1 and sensor 2 13 during greater than License Value, when the dynamic response when being mandrel 2 and white cover 3 work will exceed License Value, thus the dynamic response when control system 14 makes auxiliary bearing 9 provide aiding support to improve up-coiler work by adjusting control valve 17.
The utility model has increased the aiding support 9 of stiffness variable on existing up-coiler support pattern, by initiatively changing the support stiffness of aiding support 9, constantly be unlikely to surpass License Value to realize the dynamic response of guaranteeing up-coiler when the machine response becomes large at some; The utility model bottom bracket 1, asessory shaft bearing 5 and bearing seat 26 are connected with frame and are directly adopted interference to connect, and do not adopt O type rubber ring supporting shaft holder; In addition, the support stiffness of bearing 1, bearing 28, bearing 3 10 and bearing 4 11 is default before up-coiler is started working, and needn't regulate its rigidity when up-coiler is worked.By the support stiffness that changes bearing 1, bearing 28, bearing 3 10 and bearing 4 11, up-coiler is worked in different working speed scopes, in the variable speed working process when its working speed during near certain rank critical speed, by adjusting the support stiffness of aiding support 9, making its dynamic response not affect the machine normal operation is that the magnitude of vibrations of up-coiler is in its tolerance band.After up-coiler response is reduced to normal value, the support stiffness of aiding support 9 will be cancelled by control system 14.
Bearing 1, bearing 28, bearing 3 10 and bearing 4 11 can all adopt the stiffness variable bearing, also can all adopt the zanjon ball journal of conventional belt rubber ring, perhaps part adopts the stiffness variable bearing, part adopts the zanjon ball journal of conventional belt rubber ring, therefore one has 16 kinds of possible combinations.Its system stiffness variable range of support up-coiler that contains lesser amt stiffness variable bearing is less than the system stiffness variable range of the stiffness variable bearing up-coiler that contains a greater number.When the convoluting speed of up-coiler is not high, can select the structure of lesser amt stiffness variable bearings.As shown in Figure 2, the bearing 1 of up-coiler, bearing 28 adopt the zanjon ball journal of conventional belt rubber ring, two deep groove ball bearings with rubber ring are positioned at the end that mandrel 2 connects motor, bearing 4 11 is positioned at the front end of frame 1, the position-adjustable of bearing 3 10, the total centre of gravity of mandrel 2 and white cover 3 is still between bearing 3 10 and bearing 4 11.At this moment, only have the support stiffness of bearing 3 10 and bearing 4 11 and auxiliary bearing 9 to be conditioned in up-coiler.Control cock 17 remains independently the adjusting of each stiffness variable bearing, can be simultaneously to two stiffness variable bearing, and namely the supply pressure of bearing 3 10 and bearing 4 11 is made different adjustings preset value is set, and conditioning signal is sent by control system 14.When the dynamic response of white cover 3 in speed change work will exceed its License Value, control cock 17 can make auxiliary bearing 9 that certain support stiffness is provided, and after up-coiler response is reduced to normal value, the support stiffness of auxiliary bearing 9 will be cancelled by control system 14.
The bearing that five variable support stiffnesses are arranged as certain type high-speed winder, when its convoluting speed is 6000m/min, during blank pipe, the rotating speed of bobbin chuck is 14253r/min, by analyzing as can be known, the resonance critical speed 14118r/min on itself and certain rank is more approaching, and the initial support rigidity of up-coiler is: the radial support rigidity of bearing 1, bearing 28 is 4x10
7N/m, the radial support rigidity of bearing 3 10 is 5x10
7N/m, the radial support rigidity of bearing 4 11 is 5.5x10
7N/m.when the dynamic response of up-coiler during near its License Value, sensor 1 and sensor 2 13 will be transferred to control system 14 to signal, control system 14 outputs a control signal to control cock 17, control cock 17 is adjusted aiding support 9 bearing pressures according to signal, make aiding support 9 play the effect of aiding support, when this moment, working speed was by critical speed 14118r/min, the dynamic response of up-coiler does not exceed its License Value, after up-coiler passes through critical speed, playing the support stiffness of the aiding support 9 of aiding support effect is cancelled by control system 14, aiding support 9 does not provide aiding support rigidity.Notice that under different convoluting speeds, the default support stiffness of up-coiler is different, but the mode of change support stiffness is identical.
Claims (4)
1. the up-coiler of a variable support stiffness, comprise mandrel (2), mandrel (2) is arranged in frame (1), frame (1) part is located in white cover (3), frame (1) is exposed at the two ends of mandrel (2), wherein an end and motor link, the other end is captiveed joint with white cover (3), it is characterized in that: to overlapping successively away from the direction of motor, bearing one (7) is arranged by the direction near motor outside mandrel (2) is positioned at the part of frame (1), bearing two (8), at least one auxiliary bearing (9), bearing three (10) and bearing four (11), bearing one (7) and bearing two (8) are positioned on bearing seat one (4) simultaneously, each auxiliary bearing (9) lays respectively on separately asessory shaft bearing (5), bearing three (10) and bearing four (11) are positioned on bearing seat two (6) simultaneously, the total centre of gravity of mandrel (2) and white cover (3) is between bearing three (10) and bearing four (11), bearing seat one (4), be interference fit between the outer circumference surface of asessory shaft bearing (5) and bearing seat two (6) and frame (1) inwall, pressure source (16) connects control cock, control cock connects auxiliary bearing (9), detect white cover (3) Oscillation Amplitude when mandrel (2) rotates by sensor one (12), detect the deformation quantity of frame (1) when mandrel (2) rotates by sensor two (13), sensor one (12) and sensor two (13) connection control system (14), opened and closed according to the signal control control cock (17) that obtains by control system (14), pressure source (16) is exerted pressure and then adjusts auxiliary bearing (9) to the support stiffness of mandrel (2) when mandrel (2) rotates to auxiliary bearing (9) via control cock (17).
2. the up-coiler of variable support stiffness as claimed in claim 1 is characterized in that: described bearing one (7), described bearing two (8), described bearing three (10) or described bearing four (11) are the deep groove ball bearing of stiffness variable bearing or conventional belt seal ring; When described bearing one (7), described bearing two (8), described bearing three (10) or described bearing four (11) were the stiffness variable bearing, described bearing one (7), described bearing two (8), described bearing three (10) or described bearing four (11) connected described pressure source (16) via separately control cock respectively.
3. the up-coiler of variable support stiffness as claimed in claim 1, it is characterized in that: described sensor one (12) is edd current transducer, edd current transducer is arranged in described white cover (3) near the outer end of described motor one side, leaves the gap between the outer circumference surface of the probe end face of edd current transducer and described white cover (3).
4. the up-coiler of variable support stiffness as claimed in claim 1 is characterized in that: described sensor two (13) is piezoelectric transducer, and piezoelectric transducer is fixedly mounted on described frame (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220655872 CN203021076U (en) | 2012-12-03 | 2012-12-03 | Coiler with changeable bearing stiffness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220655872 CN203021076U (en) | 2012-12-03 | 2012-12-03 | Coiler with changeable bearing stiffness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203021076U true CN203021076U (en) | 2013-06-26 |
Family
ID=48645073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220655872 Expired - Fee Related CN203021076U (en) | 2012-12-03 | 2012-12-03 | Coiler with changeable bearing stiffness |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203021076U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102963744A (en) * | 2012-12-03 | 2013-03-13 | 东华大学 | Coiler with variable support stiffness |
-
2012
- 2012-12-03 CN CN 201220655872 patent/CN203021076U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102963744A (en) * | 2012-12-03 | 2013-03-13 | 东华大学 | Coiler with variable support stiffness |
| CN102963744B (en) * | 2012-12-03 | 2015-04-08 | 东华大学 | Coiler with variable support stiffness |
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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: 20130626 Termination date: 20151203 |
|
| EXPY | Termination of patent right or utility model |