CN215262236U - Rotor balance testing device - Google Patents
Rotor balance testing device Download PDFInfo
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- CN215262236U CN215262236U CN202121273327.8U CN202121273327U CN215262236U CN 215262236 U CN215262236 U CN 215262236U CN 202121273327 U CN202121273327 U CN 202121273327U CN 215262236 U CN215262236 U CN 215262236U
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Abstract
The utility model discloses a rotor balance testing arrangement, rotor balance testing arrangement includes: a base; the elastic sheet extends along the longitudinal direction, the bottom end of the elastic sheet is connected with the base, and the thickness of the elastic sheet is less than 0.3 mm; the balance seat is connected to the top end of the elastic sheet and used for mounting the rotor; the detection assembly is arranged on the balance seat to test the vibration frequency of the balance seat. The utility model discloses rotor balance test device solves small dimension fan, the poor technical problem of measuring accuracy when centrifugal force produces vibrations.
Description
Technical Field
The utility model relates to a test flabellum vibration volume dress field, in particular to balanced testing arrangement of rotor.
Background
The balance tester is an instrument for testing the unbalance amount of the rotor. When any rotor rotates around the shaft center, centrifugal force is generated due to uneven mass distribution relative to the shaft center, and the uneven action on the rotor causes vibration, noise and abrasion of an acceleration shaft, so that the use experience of a product is influenced, and the service life of the product is prolonged. The existing testing device usually arranges a support on an elastic sheet, when a fan blade rotates on the support, the vibration of the fan is transmitted to the support, and then the vibration quantity of the fan during rotation is tested through a detection assembly, so that the aim of balancing quantity is fulfilled. However, the existing fan has small specification, the vibration frequency generated during the centrifugal force test is small, the vibration parameters cannot be accurately tested, and the problems of poor test precision and the like exist.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a rotor balance testing arrangement aims at solving small-specification fan, the poor technical problem of measuring accuracy when centrifugal force produces vibrations.
In order to achieve the above object, the utility model provides a rotor balance testing device includes:
a base;
the elastic sheet extends along the longitudinal direction, the bottom end of the elastic sheet is connected with the base, and the thickness of the elastic sheet is less than 0.3 mm;
the balance seat is connected to the top end of the elastic sheet and used for mounting the rotor;
the detection assembly is arranged on the balance seat to test the vibration frequency of the balance seat.
Optionally, the thickness of the elastic sheet is not less than 0.15mm and does not exceed 0.25 mm.
Optionally, the resilient tab is a spring steel sheet.
Optionally, the length of the spring plate is greater than 94 mm.
Optionally, the length of the elastic sheet is not less than 95mm and not more than 100 mm.
Optionally, the elastic piece includes a lightening hole provided in the elastic piece.
Optionally, the number of the elastic pieces is two, the top ends of the two elastic pieces are respectively arranged at two ends of the balance seat, and the two elastic pieces are arranged oppositely; the bottom ends of the two elastic pieces are respectively arranged at the two ends of the base, and the two elastic pieces are oppositely arranged.
Optionally, the elastic piece is detachably connected with the balance seat;
the elastic sheet is detachably connected with the base.
Optionally, the rotor balance testing device further comprises a first pressing member, and the first pressing member presses and fixes the elastic sheet to the balance seat; and/or the presence of a gas in the gas,
the rotor balance testing device further comprises a second crimping piece, and the elastic piece is fixedly crimped on the base through the second crimping piece.
Optionally, the balance seat is provided with a first fixing hole, the top end of the elastic sheet is provided with a first via hole, the first crimping piece is provided with a first through hole, and the first through hole and the first via hole are connected with the first fixing hole through a fastener; and/or the presence of a gas in the gas,
the base is provided with a second fixing hole, the bottom end of the elastic sheet is provided with a second via hole, the second crimping piece is provided with a second through hole, and the second through hole, the second via hole and the second fixing hole are connected through a fastener.
The utility model discloses rotor balance testing arrangement, thickness through with the shell fragment sets up to being less than 0.3, and set up the bottom of shell fragment on the base, the top setting of shell fragment is on balanced seat, detecting component is connected with balanced seat, make during the rotor of test small dimension, the vibrations of small dimension rotor can transmit on the shell fragment, because the thickness of shell fragment is thin, the shell fragment has good deformability, make the vibrations that the rotor transmitted the shell fragment can be fine remain, detect for detecting component, so, the frequency of vibration that detecting component could be accurate test out the small dimension rotor, in order to promote the precision of test.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an embodiment of a rotor balance testing device according to the present invention;
fig. 2 is an exploded schematic view of a base, a spring plate, a balance seat, a first compression joint member and a second compression joint member according to an embodiment of the rotor balance testing device of the present invention;
fig. 3 is a schematic view of the rotor balance testing apparatus according to an embodiment of the present invention, showing material thickness and deformation.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) | Reference numerals | Name (R) |
| 1 | |
23 | |
5 | Second crimping member |
| 11 | |
3 | |
51 | Second through |
| 2 | Spring plate | 31 | First fixing hole | 6 | Detection assembly |
| 21 | A first via hole | 4 | |
7 | |
| 22 | Second via |
41 | First through hole |
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout is to include three juxtapositions, exemplified by "A and/or B," including either the A or B arrangement, or both A and B satisfied arrangement. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The utility model provides a rotor 7 balance test device.
In the embodiment of the present invention, as shown in fig. 1 to 3, the balance testing apparatus for a rotor 7 includes:
a base 1;
the elastic sheet 2 extends along the longitudinal direction, the bottom end of the elastic sheet 2 is connected to the base 1, and the thickness of the elastic sheet 2 is smaller than 0.3 mm;
the balance seat 3 is connected to the top end of the elastic sheet 2 and used for installing the rotor 7;
and the detection component 6 is arranged on the balance seat 3, so as to test the vibration frequency of the balance seat 3.
In this embodiment, the overall shape of the base 1 may be a rectangular parallelepiped or a circular disc, and may be used as a support carrier for the elastic sheet 2, which is not limited herein. The overall shape of the elastic sheet 2 may be a rectangular sheet or an irregular sheet, and the like, and the balance base 3 may be supported without specific limitation. The thickness of the elastic sheet 2 needs to be less than 0.3mm, so that when the balance seat 3 is arranged on the elastic sheet 2 as a support, the vibration generated by the rotor 7 on the balance seat 3 is prevented from being absorbed by the elastic sheet 2.
The overall shape of the balance base 3 is not particularly limited, and the balance base 3 can be used for bearing the rotor 7, and the balance base 3 is provided with a coil for providing power for the fan. The rotor 7 is a fan blade, the fan blade is provided with a magnet, and the specification of the fan blade is below 1 mg. The detection assembly 6 comprises an angle sensing sensor and a vibration sensor which are arranged on the balance base 3.
During testing, the rotor 7 is arranged on the balance seat 3, the coil on the balance seat 3 is electrified, the coil is electrified to generate linear cutting electromotive force, the electromotive force is conducted with a magnetic field on the rotor 7 to drive the rotor 7 to rotate, the rotor 7 is unbalanced and generates centrifugal force when rotating due to uneven mass of the rotor 7, the rotor 7 generates transverse centrifugal force in the rotating process, the centrifugal force generates vibration frequency when rotating, vibration is transmitted to the elastic sheet 2 through the balance seat 3, the elastic sheet 2 has good deformation capacity due to the fact that the size of the elastic sheet 2 is smaller than 0.3mm, vibration can be well reserved when the vibration is transmitted to the elastic sheet 2 serving as a support through the balance seat 3, so that the vibration sensor can test the vibration of the centrifugal force, the angle induction sensor induces an angle, calculation is carried out through a formula, and the vibration size is converted into the mass size, therefore, the uneven amount, the size and the angle of the fan can be obtained, and later improvement is facilitated.
The utility model discloses rotor 7 balance test device, set up to being less than 0.3 through the thickness with shell fragment 2, and set up the bottom of shell fragment 2 on base 1, the top setting of shell fragment 2 is on balanced seat 3, determine module 6 is connected with balanced seat 3, make when testing the rotor 7 of small dimension, the vibrations of small dimension rotor 7 can be transmitted on shell fragment 2, because the thickness of shell fragment 2 is thin, shell fragment 2 has good deformability, make the rotor 7 transmit the fine reservation of the vibrations ability of shell fragment 2, detect for determine module 6, so, determine module 6 can be accurate test out the frequency of vibrations of small dimension rotor 7, in order to promote the precision of test.
Specifically, as shown in fig. 1 to 3, the thickness of the elastic sheet 2 is not less than 0.15mm and does not exceed 0.25 mm. When the thickness of the elastic sheet 2 is larger than 0.25mm, the elastic deformation of the elastic sheet 2 is not obvious, most of the vibration is absorbed by the elastic sheet 2, and the detection value detected by the detection assembly 6 is inaccurate. When the thickness of the elastic sheet 2 is less than 0.15, the elastic deformation of the elastic sheet 2 is too violent, and meanwhile, the elastic sheet 2 cannot stably support the balance seat 3, so that the balance seat 3 is easily fallen down. The elastic sheet 2 has sufficient rigidity to support the balance base 3 when the thickness of the elastic sheet 2 is 0.15mm to 0.25mm, and has good elasticity to improve the frequency and accuracy of the rotor 7.
Specifically, as shown in fig. 2, the elastic sheet 2 is a spring steel sheet. The spring steel has good elasticity and excellent comprehensive properties such as elasticity, strength and yield ratio, so that the service life of the elastic sheet 2 is prolonged, and the test range of different qualities of the rotor 7 is expanded.
Specifically, as shown in fig. 2, the length of the elastic sheet 2 is greater than 94 mm. The length of the elastic sheet 2 is larger than 94mm, so that the elasticity of the elastic sheet 2 is increased, the deformation capacity of the elastic sheet 2 is improved, and the accuracy of the test rotor 7 in vibration can be further improved.
Specifically, as shown in fig. 2, the length of the elastic sheet 2 is not less than 95mm and not more than 100 mm. When the length of the elastic sheet 2 is less than 95mm, when the vibration of the rotor 7 is transmitted to the elastic sheet 2 through the balance seat 3, the elastic deformation is not obvious, and the tested effect is poor. When the length of the elastic sheet 2 is larger than 100mm, the rigidity of the elastic sheet 2 is reduced, and the elastic sheet 2 is easy to shake to cause side turning and is not favorable for fixation. In addition, the length of the elastic sheet 2 is larger than 100mm, so that the equipment is not beneficial to miniaturization, and meanwhile, the cost is not beneficial to saving. When the length of the elastic sheet 2 is 95mm to 100mm, the elasticity of the elastic sheet 2 can be further improved, so that the elasticity and the flexibility are balanced, and the vibration accuracy of the test rotor 7 is further improved.
Specifically, as shown in fig. 2, the elastic sheet 2 includes a lightening hole 23 opened in the elastic sheet 2. The number of the elastic sheets 2 is two, the top ends of the two elastic sheets 2 are respectively arranged at two ends of the balance seat 3, and the two elastic sheets 2 are oppositely arranged; the bottom ends of the two elastic pieces 2 are respectively arranged at two ends of the base 1, and the two elastic pieces 2 are oppositely arranged. In order to make the elastic sheet 2 more sensitive, the elastic sheet 2 is provided with lightening holes 23, the size and the number of the lightening holes 23 are not particularly limited, the weight can be lightened, and the vibration sensitivity of the elastic sheet 2 can be improved. In order to let balanced seat 3 place the quantity of more stabilizing shell fragment 2 two at least to the top of two shell fragments 2 sets up the both ends at balanced seat 3 relatively, and simultaneously, the bottom of two shell fragments 2 sets up the both ends at base 1 respectively, so, can be more stable when supporting balanced seat 3 as two shell fragments 2.
Specifically, as shown in fig. 2, the elastic sheet 2 is detachably connected to the balance seat 3; the elastic sheet 2 is detachably connected with the base 1. In order to facilitate enlarging the testing range of the rotor 7 balance testing device, the elastic sheet 2 and the balance seat 3 are detachably connected, the detachable type has multiple types, the detachable type is fixed or fixed by a limiting groove and the like, the detachable type can be conveniently replaced, so that the rotor 7 with different qualities can be conveniently replaced by only replacing the elastic sheet 2, and the quantity of the device is favorably reduced, so that the production cost is saved. In addition, can dismantle and be provided with and do benefit to and accomodate and transport, can dismantle shell fragment 2 when not using to reduce shell fragment 2 and occupy the space, reach convenient purpose of accomodating.
Specifically, as shown in fig. 2, the rotor 7 balance testing device further includes a first pressing member 4, and the first pressing member 4 presses and fixes the elastic sheet 2 to the balance seat 3; and/or, the rotor 7 balance testing device further comprises a second crimping piece 5, and the second crimping piece 5 presses and fixes the elastic sheet 2 to the base 1. The number of the first compression joint parts 4 and the number of the second compression joint parts 5 are the same as the number of the elastic sheets 2, the types of the first compression joint parts 4 and the second compression joint parts 5 can be suction parts or buckles, and the like, and are not particularly limited herein, for example, when the types of the first compression joint parts and the second compression joint parts are suction parts, the first compression joint parts generate suction force with the balance parts to press the elastic sheets 2 arranged at the two ends of the balance seat 3 at the end parts of the balance seat 3, so that the top ends of the elastic sheets 2 can be detachably connected to the balance seat 3; in a similar way, the second pressing piece presses the elastic pieces 2 arranged at the two ends of the base 1 through producing the attraction force with the base 1, so that the elastic pieces 2 can be detachably connected on the base 1.
Specifically, as shown in fig. 2, the balance base 3 is provided with a first fixing hole 31, the top end of the elastic sheet 2 is provided with a first through hole 21, the first pressing member 4 is provided with a first through hole 41, and the first through hole 41, the first through hole 21 and the first fixing hole 31 are connected by a fastener; and/or, the base 1 is provided with a second fixing hole 11, the bottom end of the elastic sheet 2 is provided with a second via hole 22, the second crimping piece 5 is provided with a second via hole 51, and the second via hole 51, the second via hole 22 and the second fixing hole 11 are connected through a fastener.
In order to ensure that the connection between the balance seat 3 and the elastic sheet 2 is more reliable, the two opposite ends of the balance seat 3 are provided with a plurality of first fixing holes 31, and the plurality of first fixing holes 31 are arranged at intervals; the top ends of the two elastic sheets 2 are provided with through first via holes 21, the number of the first via holes 21 of the two elastic sheets 2 is the same as that of the first fixing holes 31, the first via holes 21 are spaced, and the spacing of the first via holes 21 on the same elastic sheet 2 is the same as that of the first fixing holes 31 at the same end of the balance seat 3; the two first crimping pieces 4 are provided with penetrating first through holes 41, the number of the first through holes 41 of the first crimping pieces is the same as that of the first fixing holes 31, the first through holes 41 are spaced, and the spacing of the first through holes 41 on the same first crimping piece 4 is the same as that of the first fixing holes 31 at the same end of the balance seat 3; therefore, the fastening member passes through the first through hole 41 and the first through hole 21 to be tightly connected with the first fixing hole 31, so as to achieve the purpose of fixing. A plurality of first fixing holes 31 are respectively formed at two ends of the balance seat 3; the top end of the elastic sheet 2 is also provided with first through holes 21 with the same number as that of one end of the balance seat 3; the first pressing piece 4 is also provided with the first through holes 41 with the same number as that of one ends of the balance seat 3, so that the friction force from each part of the first pressing piece 4 to the elastic sheet 2 is increased during connection, and the connection stability of the elastic sheet 2 and the balance seat 3 is improved.
Similarly, in order to ensure that the base 1 and the elastic sheet 2 are more reliably connected, the two opposite ends of the base 1 are provided with a plurality of second fixing holes 11, and the plurality of second fixing holes 11 are arranged at intervals; the bottom ends of the two elastic sheets 2 are provided with through second through holes 22, the number of the second through holes 22 of the two elastic sheets 2 is the same as that of the second fixing holes 11, the second through holes 22 are spaced, and the spacing of the second through holes 22 on the same elastic sheet 2 is the same as that of the second fixing holes 11 at the same end of the base 1; the two second crimping pieces 5 are provided with penetrating second through holes 51, the number of the second through holes 51 on the two second crimping pieces is the same as that of the second fixing holes 11, the second through holes 51 are spaced, and the spacing of the second through holes 51 on the same second crimping piece 5 is the same as that of the second fixing holes 11 at the same end of the balance seat 3; in this way, the fastening member passes through the second through hole 51 and the second through hole 22 to be fastened with the second fixing hole 11, so as to achieve the purpose of fixing. A plurality of second fixing holes 11 are formed in both ends of the base 1; the bottom end of the elastic sheet 2 is also provided with second through holes 22 with the same number as that of one end of the base 1; the second crimping piece 5 is also provided with the second through holes 51 with the same number as that of one end of the base 1, so that the friction force of each part of the second crimping piece 5 on the elastic sheet 2 is increased during connection, and the connection stability of the elastic sheet 2 and the base 1 is improved.
The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.
Claims (10)
1. A rotor balance testing device, comprising:
a base;
the elastic sheet extends along the longitudinal direction, the bottom end of the elastic sheet is connected with the base, and the thickness of the elastic sheet is less than 0.3 mm;
the balance seat is connected to the top end of the elastic sheet and used for mounting the rotor;
the detection assembly is arranged on the balance seat to test the vibration frequency of the balance seat.
2. The rotor balance testing device of claim 1, wherein the thickness of the spring plate is not less than 0.15mm and not more than 0.25 mm.
3. The rotor balance test device of claim 1, wherein the spring plate is a spring steel plate.
4. The rotor balance testing device of claim 1, wherein the length of the spring plate is greater than 94 mm.
5. The rotor balance testing device of claim 4, wherein the length of the spring plate is not less than 95mm and not more than 100 mm.
6. The rotor balance test device of any one of claims 1 to 4, wherein the spring plate comprises a lightening hole formed in the spring plate.
7. The rotor balance testing device according to any one of claims 1 to 4, wherein the number of the spring pieces is two, the top ends of the two spring pieces are respectively arranged at two ends of the balance seat, and the two spring pieces are oppositely arranged; the bottom ends of the two elastic pieces are respectively arranged at the two ends of the base, and the two elastic pieces are oppositely arranged.
8. The rotor balance test device of any one of claims 1 to 4, wherein the spring plate is detachably connected with the balance seat;
the elastic sheet is detachably connected with the base.
9. The rotor balance testing device of claim 8, further comprising a first crimping member that crimps the spring plate to the balance seat; and/or the presence of a gas in the gas,
the rotor balance testing device further comprises a second crimping piece, and the elastic piece is fixedly crimped on the base through the second crimping piece.
10. The rotor balance testing device of claim 9, wherein the balance seat is provided with a first fixing hole, the top end of the spring plate is provided with a first through hole, the first crimping piece is provided with a first through hole, and the first through hole, the first through hole and the first through hole are connected with the first fixing hole through a fastening piece; and/or the presence of a gas in the gas,
the base is provided with a second fixing hole, the bottom end of the elastic sheet is provided with a second via hole, the second crimping piece is provided with a second through hole, and the second through hole, the second via hole and the second fixing hole are connected through a fastener.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121273327.8U CN215262236U (en) | 2021-06-08 | 2021-06-08 | Rotor balance testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121273327.8U CN215262236U (en) | 2021-06-08 | 2021-06-08 | Rotor balance testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215262236U true CN215262236U (en) | 2021-12-21 |
Family
ID=79477519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121273327.8U Active CN215262236U (en) | 2021-06-08 | 2021-06-08 | Rotor balance testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215262236U (en) |
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2021
- 2021-06-08 CN CN202121273327.8U patent/CN215262236U/en active Active
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