CN210571175U - Rotor dynamic balance detection and resetting device - Google Patents
Rotor dynamic balance detection and resetting device Download PDFInfo
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- CN210571175U CN210571175U CN201921635312.4U CN201921635312U CN210571175U CN 210571175 U CN210571175 U CN 210571175U CN 201921635312 U CN201921635312 U CN 201921635312U CN 210571175 U CN210571175 U CN 210571175U
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- 238000001514 detection method Methods 0.000 title claims abstract description 35
- 230000007246 mechanism Effects 0.000 claims description 15
- 238000002360 preparation method Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 6
- 230000013011 mating Effects 0.000 abstract description 2
- 238000010276 construction Methods 0.000 abstract 1
- 238000005553 drilling Methods 0.000 description 9
- 238000013461 design Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 239000013585 weight reducing agent Substances 0.000 description 1
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Abstract
The utility model relates to a rotor dynamic balance detects and removes equipment of resetting, include the gyro wheel frame and install the gyro wheel on the gyro wheel frame, the gyro wheel is constructed to have the rotor shaft of horizontal axis along radial support in order to carry out dynamic balance and detects, still includes two clamp brackets, is constructed to press from both sides the both ends of tight rotor shaft and makes the rotor shaft break away from at the clamping process the support of gyro wheel is in order to carry out the weight removal, two clamp brackets have one respectively and are used for along the conical or the frustum conical protruding portion of rotor shaft centre gripping on the both ends of rotor shaft, two protruding portions all have coaxial horizontal axis each other and can both stretch into in the taper hole on the both ends of rotor shaft with taper hole mating reaction, wherein the horizontal axis of protruding portion is higher than the horizontal axis of rotor shaft during dynamic balance detects. The rotor dynamic balance detection and resetting device of the exemplary embodiment is simple in construction and convenient to use.
Description
Technical Field
The utility model relates to a rotor dynamic balance detects and goes to reset equipment, and this equipment has realized the switching between dynamic balance detection technology and the weight removal technology through the tight support of clamp simple to use.
Background
At present, the dynamic balance weight removal mode of the spindle motor rotor is generally a drilling weight removal process.
In order to remove the weight of the drilled hole, a drilling machine is usually provided for one balancing machine. An operator places the motor rotor to be measured on a balancing machine for measurement; and if the dynamic balance exceeds the standard, putting the motor rotor on a drilling machine for drilling and removing the weight. The disadvantage of this method is that the accuracy of the deduplication cannot be guaranteed, and the deduplication efficiency is low.
In order to ensure the accuracy of the weight removal and improve the weight removal efficiency, the rotor does not need to be transferred, and the drilling weight removal can be directly carried out on the dynamic balancing machine. In this case, the dynamic balancer is a device for detecting the accuracy of the rotor and a processing device. However, the dynamic balancing machine itself may be greatly vibrated and impacted during the drilling process, and the long-term frequent vibration and impact may affect the precision of the dynamic balancing machine, especially the dynamic balancing roller, reduce the service life of the balancing machine, and may also cause the poor dynamic balancing and weight removing effect of the motor rotor and further affect the quality of the motor rotor.
Document CN207328003U describes a lifting tool for a dynamic balancing machine, in which, after determining the corresponding drilling position after detection, the motor rotor is supported on a lifting frame, one end of the lifting frame is movably connected with a supporting column through a connecting pin, and the other end of the lifting frame is movably supported on an eccentric wheel, and then the motor rotor is separated from a dynamic balance measuring component so as to perform dynamic balance and weight removal on the motor rotor. At the moment, the lower end face of the motor rotor is abutted against a plurality of supporting rods of the lifting frame, and two side faces of the motor rotor are limited by the lifting plates extending in the vertical direction. However, this solution has the disadvantage that the support and the limitation of the rotor of the electric machine are realized by means of the support bar and the lifting plate, respectively, so that the structure is complicated and takes up a large installation space, and in addition, its use is time-consuming.
SUMMERY OF THE UTILITY MODEL
The technical problem underlying the exemplary embodiments is to overcome the above and/or other drawbacks of the prior art and to provide an improved rotor dynamic balance detection and resetting device which is simpler to construct and which is considerably time-saving in use.
The technical problem is solved by the following technical scheme.
A rotor dynamic balance detection and resetting apparatus according to an exemplary embodiment includes
A roller frame and a roller mounted on the roller frame, the roller being configured to radially support a rotor shaft having a horizontal axis for dynamic balance detection;
two clamping brackets configured to clamp both ends of the rotor shaft and to separate the rotor shaft from the support of the roller for weight removal during clamping;
wherein the two clamping brackets each have a conical or frustoconical projection for clamping on both ends of the rotor shaft in the axial direction of the rotor, both projections having horizontal axes which are coaxial with one another and being able to project into the conical bores on both ends of the rotor shaft for cooperation with the conical bores, wherein the horizontal axes of the projections are higher or slightly higher than the axis of the rotor shaft during dynamic balance detection.
Exemplary embodiments are based on the recognition that in order to disengage the rotor shaft from the support of the roller for weight reduction, existing rotor dynamic balance detection devices may be provided with two clamping brackets having a tip-like, conical or frusto-conical protrusion, wherein the protrusion is arranged somewhat eccentrically to the conical bore at the respective rotor shaft ends, in particular, with a horizontal axis higher than the rotor shaft axis during dynamic balance detection, while at the same time the height of the horizontal axis of the protrusion ensures that the protrusion can protrude into the conical bore at the rotor shaft ends, and further that when the protrusion is brought into close fit with the conical bore, the rotor shaft and the rotor can be lifted off the roller quickly and efficiently. In this case, the distance between the rotor and the roller does not need to be large, and the purpose of lifting can be achieved only by a slight gap. Of course, the distance between the rotor and the roller is preferably sufficient to ensure that vibrations generated during borehole de-weighting do not cause the rotor to contact the roller again.
According to an exemplary embodiment, the taper of the protrusion may be greater or less than the taper of the tapered bore of the rotor shaft, as long as the external tapered surface of the protrusion and the internal tapered surface of the tapered bore are capable of forming a mating action. Preferably, the taper of the protrusion corresponds to the taper of the tapered bore of the rotor shaft. Thereby an effective fit of the protrusion with the conical bore can be ensured.
According to an exemplary embodiment, the projection is conical or frustoconical. Hereby it is achieved that the rotor shaft can still be rotated around the rotor axis when the clamping brackets clamp both ends of the rotor shaft. In other words, the rotor shaft is only axially and radially locked by the clamping head or the clamping bracket and the rotation about the rotor axis is not impeded, so that the position of the rotor can be flexibly adjusted when the rotor is subjected to the de-weighting compensation according to the dynamic balance detection result.
According to a preferred design of the exemplary embodiment, the clamping bracket further has a clamping portion extending around the protruding portion, configured to additionally come into contact with an end face of the rotor shaft when clamping both ends of the rotor shaft. The clamping portion is preferably a vertically extending flat plate. By adopting the design mode, the rotor shaft is clamped by the contact of the protruding part and the conical surface of the conical hole, and the rotor shaft is additionally clamped more firmly by the abutting between the clamping part and the end surface of the rotor shaft, so that the drilling and de-weighting process is more facilitated.
According to an exemplary embodiment, the clamping bracket can be designed in one piece. Here, the horizontal movement of the protruding portion of the clamp bracket is achieved by the horizontal movement of the clamp bracket as a whole.
According to a preferred embodiment of the exemplary embodiment, the clamping frame is of a split type. Preferably, the two clamping brackets respectively include a horizontally movable chuck and a support frame for vertically supporting the chuck and a driving mechanism for driving the chuck, and the protruding portion is configured on the chuck. In this case, the clamping portion described above is also configured on the chuck. The design mode considers different rotor types, and the chuck can be replaced according to the rotor.
According to an exemplary embodiment, the support frame is configured with a horizontally extending receptacle, and the clamping head has a connecting portion which is form-fit with the receptacle. Preferably, the receiving portion is a through hole. In this way, the connection of the support frame to the clamping head is simply achieved.
According to an exemplary embodiment, the drive mechanism of the chuck may be of the press-bar or rocker type.
Preferably, the drive mechanism is a press bar type, and the chuck has a chuck bar operatively connected to the drive mechanism. The strut-type drive mechanism may include a strut and a link. The pressure lever can be designed in an L-shape, the end of the longer arm of which is designed as a handle, the end of the shorter arm being articulated with the collet lever of the collet, and a fulcrum being designed in the region of the interconnection of the two arms. One end of the connecting rod is hinged to the support frame or to a member that is stationary relative to the jaw bar when the jaw bar is moved in the horizontal direction. The other end of the connecting rod is hinged with the fulcrum of the pressure lever. The articulations respectively enable the members participating in the articulation to pivot relative to each other about an axis in a horizontal plane perpendicular to the direction of movement of the collet rod. The above design mode can save labor and quickly move the chuck to the end part of the rotor shaft for clamping and lifting.
The drive mechanism may also be arranged in a rocker type. Accordingly, the receptacle in the support frame should be designed as a threaded hole and the connecting portion of the clamping head should be provided with a thread.
According to an exemplary embodiment, the rotor dynamic balance detecting and resetting apparatus further includes a driving device with a belt contactable with the rotor on an outer circumferential surface of the rotor. When the rotor is subjected to action balance detection, the belt is used for driving the rotor to rotate; the belt is used to help secure the rotor while dynamically balancing the rotor for weight removal.
According to an exemplary embodiment, the roller frame and the clamping bracket may be mounted on different or the same base. Preferably, the roller frame and the clamping bracket are both mounted on the same base. In addition, the base can also comprise a horizontal sliding rail, and the roller frame and the clamping bracket are arranged on the horizontal sliding rail so as to be convenient for position adjustment according to the length of the rotor shaft.
As can be seen from the above, the rotor dynamic balance detecting and removing apparatus according to the exemplary embodiment achieves switching between the dynamic balance detecting process and the removing process by using the simple clamping tool of the clamping bracket. The equipment simply and rapidly supports the rotor to drill, avoids the damage to the dynamic balance equipment caused by impact and vibration during drilling, and realizes the protection of a machine tool under the condition of not influencing the machining efficiency.
Drawings
The above features, technical characteristics, advantages and modes of realisation of the present invention will be further described in the following detailed description of preferred embodiments thereof, in conjunction with the accompanying drawings. Wherein:
FIG. 1 illustrates a rotor dynamic balance detection and resetting apparatus according to an exemplary embodiment.
FIG. 2 illustrates a split clamping bracket for rotor dynamic balance detection and reset apparatus of an exemplary embodiment.
Fig. 3 illustrates a variation of a split clamping bracket for rotor dynamic balance detection and resetting apparatus of an exemplary embodiment.
In the figure:
1 roller frame 2 roller 10 rotor 20 rotor shaft 21, 21' taper hole
3. 3' clamping support 4 base
31 chuck 31a clamping portion 31b connecting portion 31c chuck rod
32 support 32a through hole
Horizontal axis of V-shaped protruding part
Horizontal axis of rotor shaft during W dynamic balance detection
A. A' protruding part
X fulcrum
Detailed Description
Fig. 1 illustrates a rotor dynamic balance detection and removal apparatus according to an exemplary embodiment, including a roller frame 1 and a roller 2 mounted on the roller frame 1, the roller 2 being configured to radially support a rotor shaft 20 of a motor rotor 10 for dynamic balance detection. The rotor dynamic balance detecting and removing apparatus further includes two clamping brackets 3 configured to clamp both ends of the rotor shaft 20 in an axial direction and to separate the rotor shaft 20 from the support of the roller 2 during clamping for removing weight. The roller frame 1 and the clamping bracket 3 are here both mounted on the same base 4.
It should be noted here that the rotor 10 and the rotor shaft 20 are coaxial, and the axis W of the rotor shaft 20 needs to be kept horizontal during the dynamic balance detection. The roller 2 is preferably supported at a bearing stop of the rotor shaft 20. The support of the roller 2 on the bearing rail facilitates the measurement of the unbalance, since the bearing rail has a low roughness.
As shown in fig. 1, the two clamping brackets 3, 3 'respectively have a conical or frustoconical protrusion A, A' for clamping on both ends of the rotor shaft 20 in the rotor axial direction, i.e., the horizontal direction, and both protrusions A, A 'have horizontal axes V coaxial with each other and are capable of protruding into the tapered holes 21, 21' on both ends of the rotor shaft 20 to cooperate with the tapered holes 21, 21 ', wherein the horizontal axis V of the protrusion A, A' is set higher than the horizontal axis W of the rotor shaft 20 during dynamic balance detection. Here, the distance between the horizontal axis V of the protrusion A, A ' and the horizontal axis W of the rotor shaft 20 during dynamic balance detection may be selected such that the protrusion A, A ' can protrude into the tapered holes 21, 21 ' on both ends of the rotor shaft 20 during horizontal movement to cooperate with the tapered holes 21, 21 ' via which the horizontal axis W of the rotor shaft 20 rises to the horizontal axis V of the protrusion A, A ', when the rotor shaft 20 is disengaged from the support of the roller 2.
Here, the taper of the conical or frustoconical protrusion A, A 'corresponds to the taper of the conical bore 21, 21' of the rotor shaft 20, for example, 60 degrees each. The height of the protrusion A, A' also corresponds to the height of the tapered bore.
The clamping brackets 3, 3' can be constructed in one piece or in two parts. In the case of the integrated clamping bracket 3, 3 ', the horizontal movement of the protruding portion A, A ' can be achieved by moving the entire clamping bracket 3, 3 ' horizontally. Preferably, the clamping brackets 3, 3' are constructed as a split type.
FIG. 2 illustrates a split clamping bracket for rotor dynamic balance detection and reset apparatus of an exemplary embodiment. The clamping bracket 3 includes a chuck 31 movable in a horizontal direction, a support bracket 32 for vertically supporting the chuck 31, and a driving mechanism 33 for driving the chuck 31.
The projection a is configured on the collet 31. The collet 31 is further configured with a gripping portion 31a extending around said protruding portion a, a connecting portion 31b for connection to a support bracket 32 and a collet rod 31c for operative connection to a drive mechanism 33. The support frame 32 is configured with a horizontally extending through-hole 32a, with which the connecting portion 31b of the cartridge is form-fitted.
The collet 31 may have only the protruding portion a as a structure to be brought into contact with the end of the rotor shaft 20 as shown in fig. 1, or may additionally have a clamping portion 31a extending around the protruding portion a as shown in fig. 2, wherein the clamping portion 31a may be configured in a flat plate shape for additionally being brought into contact with the end surfaces of the end of the rotor shaft 20 when the collet 31 clamps both ends of the rotor shaft 20, thereby more firmly clamping both ends of the rotor shaft 20.
The drive mechanism 33 includes a pressing lever 33a and a link 33 b. The pressure lever 33a is L-shaped, the end of the longer arm of which is configured as a handle, the end of the shorter arm being hinged to the collet lever 31c of the collet 31, and a fulcrum X being configured in the region where the two arms are connected to each other. One end of the link 33b is hinged to the support frame 31 or to a member 34 that is immovable with respect to the chuck lever 31c when the chuck lever 31c moves in the horizontal direction. The other end of the link 33b is hinged to the fulcrum X of the pressing lever 33 a. The hinges respectively enable the members participating in the hinge to pivot relative to each other about an axis in the horizontal plane perpendicular to the direction of movement of the collet rod 31 c.
Fig. 3 illustrates a variation of a split clamping bracket for rotor dynamic balance detection and resetting apparatus of an exemplary embodiment. The clamping frame 3 here also comprises a clamping head 31 which can be moved in the horizontal direction and a supporting frame 32 for vertically supporting the clamping head 31 and a drive mechanism 33. The difference compared to fig. 2 is that the through hole 32a in the support frame 32 is a threaded hole, the connecting portion 31b of the collet 31 is threaded, and the drive mechanism 33 is correspondingly provided as a rocker.
In the case of the rotor dynamic balance detection and resetting device according to the exemplary embodiment, the rotor or rotor shaft 20 is first mounted radially on the roller 2 of the roller frame 1, and then driven in rotation for unbalance testing, for example by pressing the rotor or rotor shaft against the roller 2 by means of a belt which is at least partially in contact with the outer circumferential surface of the rotor or rotor shaft 20, and then the rotor 10 is set into rotation by driving the belt by means of a drive.
After the test is finished and the unbalance is obtained, the chucks 31, 31 ' are moved toward each other in the axial direction of the rotor 10 or the rotor shaft 20 until the protrusions A, A ' enter the tapered holes 21, 21 ' on both ends of the rotor shaft 20 by pressing the handles on the pressing rods, respectively. At this time, since the horizontal axis V of the protruding portion A, A ' is slightly higher than the horizontal axis W of the rotor shaft 20 that is supported on the roller 2 of the roller frame 1 as it is, the contact between the protruding portion A, A ' and the tapered holes 21, 21 ' along the inclined tapered surfaces causes the rotor shaft 20 to be automatically lifted up, that is, the rotor 10 or the rotor shaft 20 to be automatically disengaged from the roller 2 while the protruding portion continues to move in the horizontal direction. After the disengagement is completed, an operator may punch holes at corresponding positions of the rotor 10 according to the result of the dynamic balance test to perform dynamic balance compensation.
Finally, the rotor 10 or the rotor shaft 20 can be mounted again on the roller 2 of the roller carrier 1 by reversing the actuation of the pressure lever 33a, and the rotor dynamic balance is measured again, in order to carry out the above steps again if necessary.
Although exemplary embodiments have been described in the foregoing description, it should be noted that a large number of variants are possible. Furthermore, it should be noted that the exemplary embodiments described are merely examples and should not be considered as limiting the scope of protection, applicability, or configuration of the device according to the exemplary embodiments in any way. Rather, the summary and the description of the embodiments are provided to guide the person skilled in the art in the implementation of at least one exemplary embodiment, in which various modifications are possible in the function and arrangement of the elements described without departing from the scope of protection defined by the claims and the equivalent combination of features.
Claims (10)
1. A rotor dynamic balance detection and resetting device comprises
A roller frame (1) and a roller (2) mounted on the roller frame (1), the roller (2) being configured to radially support a rotor shaft (20) having a horizontal axis (W) for dynamic balance detection,
it is characterized in that the preparation method is characterized in that,
and two clamping brackets (3, 3 ') configured to clamp both ends of the rotor shaft (20) and to detach the rotor shaft (20) from the support of the roller (2) for weight removal during clamping, the two clamping brackets (3, 3 ') each having a conical or frustoconical protrusion (A, A ') for clamping along the rotor shaft (20) onto both ends of the rotor shaft (20), both protrusions having horizontal axes (V) coaxial with each other and being capable of protruding into conical holes (21, 21 ') on both ends of the rotor shaft (20) to cooperate therewith, wherein the horizontal axis (V) of the protrusion (A, A ') is higher than the horizontal axis (W) of the rotor shaft (20) during dynamic balance detection.
2. Rotor dynamic balance detection and resetting device according to claim 1, characterized in that the taper of the protrusion (A, A ') coincides with the taper of the tapered hole (21, 21') of the rotor shaft (20).
3. Rotor dynamic balance detection and resetting device according to claim 1, characterized in that the clamping bracket (3, 3 ') further has a clamping portion (31a) extending around the protrusion (A, A') configured to additionally come into contact with an end face of the rotor shaft (20) when clamping both ends of the rotor shaft (20).
4. Rotor dynamic balance detection and resetting apparatus according to claim 1, characterized in that the clamping brackets (3, 3') are one-piece.
5. Rotor dynamic balance detection and resetting device according to claim 1, characterized in that the two clamping brackets (3, 3 ') each comprise a horizontally movable collet (31) and a support bracket (32) for vertically supporting the collet (31) and a drive mechanism (33) for driving the collet (31), the protruding portion (A, A') being configured on the collet (31).
6. Rotor dynamic balance detection and removal device according to claim 5, characterized in that the support frame (32) is configured with a horizontally extending receptacle, the cartridge (31) having a connection portion (31b) which is form-fit with the receptacle.
7. Rotor dynamic balance detection and resetting device according to claim 5, characterized in that the drive means are of the press bar type, said cartridge (31) having a cartridge bar (31c) operatively connected to said drive means.
8. Rotor dynamic balance detecting and resetting apparatus according to claim 7, characterized in that the pressure lever type driving mechanism comprises a pressure lever (33a) and a connecting rod (33b), the pressure lever (33a) being configured in an L-shape, the end of the longer arm is constructed as a handle, the end of the shorter arm is hinged with a chuck rod (31c) of the chuck (31), and a fulcrum (X) is formed in the region where the two arms are connected to each other, one end of the connecting rod (33b) is hinged to the supporting frame (32) or to a member (34) that is stationary relative to the clamping bar (31c) when the clamping bar (31c) is moved in the horizontal direction, the other end of the connecting rod (33b) is hinged to the fulcrum (X) of the pressing bar (33a), the articulations respectively enable the members participating in the articulation to pivot relative to each other about an axis in a horizontal plane perpendicular to the direction of movement of the collet rod (31 c).
9. Rotor dynamic balance detection and removal device according to claim 6, characterized in that the drive mechanism (33) is of the rocker type, the receptacle in the support frame (32) is designed as a threaded hole, and the connecting portion (31b) of the cartridge (31) is provided with a thread.
10. The rotor dynamic balance detecting and removing device according to claim 1, characterized in that the rotor dynamic balance detecting and removing device further comprises a base (4) having a horizontal slide on which said roller frame (1) and said clamping brackets (3, 3') are mounted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921635312.4U CN210571175U (en) | 2019-09-27 | 2019-09-27 | Rotor dynamic balance detection and resetting device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921635312.4U CN210571175U (en) | 2019-09-27 | 2019-09-27 | Rotor dynamic balance detection and resetting device |
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| Publication Number | Publication Date |
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| CN210571175U true CN210571175U (en) | 2020-05-19 |
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| CN201921635312.4U Active CN210571175U (en) | 2019-09-27 | 2019-09-27 | Rotor dynamic balance detection and resetting device |
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| CN (1) | CN210571175U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116358787A (en) * | 2023-05-26 | 2023-06-30 | 江苏恒康机电有限公司 | Automatic correction equipment and method for motor dynamic balance test |
-
2019
- 2019-09-27 CN CN201921635312.4U patent/CN210571175U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116358787A (en) * | 2023-05-26 | 2023-06-30 | 江苏恒康机电有限公司 | Automatic correction equipment and method for motor dynamic balance test |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231221 Address after: 211401 No. 99, Zhongxin Road, Yizheng City, Yangzhou City, Jiangsu Province Patentee after: Siemens Electromechanical Technology (Jiangsu) Co.,Ltd. Address before: No. 99 Zhongxin Road, Yangzhou City, Jiangsu Province, 211400 Patentee before: SIEMENS MOTOR (CHINA) CO.,LTD. |
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| TR01 | Transfer of patent right |