CN202329940U - Measuring device for calibration of dynamic balancing machine - Google Patents
Measuring device for calibration of dynamic balancing machine Download PDFInfo
- Publication number
- CN202329940U CN202329940U CN2011204536113U CN201120453611U CN202329940U CN 202329940 U CN202329940 U CN 202329940U CN 2011204536113 U CN2011204536113 U CN 2011204536113U CN 201120453611 U CN201120453611 U CN 201120453611U CN 202329940 U CN202329940 U CN 202329940U
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- dynamic balancing
- rotor
- balancing machine
- high precision
- calibration
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Abstract
The utility model discloses a measuring device for calibration of a dynamic balancing machine. The measuring device comprises a high-accuracy eddy current displacement sensor (9) and a high-accuracy photoelectric sensor (10) which are fixed on a dynamic balancing machine base (5) through a mounting bracket respectively, wherein a sensing head of the high-accuracy eddy current displacement sensor (9) is aligned with a vibrating bracket 4; and a sensing head of the high-accuracy photoelectric sensor (10) is aligned with a rotor (1). According to the calibration measuring device adopted by the utility model, the standard rotor is completely abandoned, so that the problem of difficulty in realizing machining of the standard calibration rotor is solved substantially.
Description
Technical field
The utility model belongs to instrument and equipment collimation technique field, refers more particularly to the dynamic balancing machine calibration.
Background technology
The transient equilibrium checkout equipment is the main means of mass property parameter detecting, is the key testing equipment that ensures product development, produces debugging, fail-test, in the product quality guarantee, is bringing into play crucial effect.
The transient equilibrium checkout equipment mainly is made up of three big parts such as mechanical vibrating system, drive system and electric measurement systems.Balanced workpiece is bearing on the dynamic balancing machine vibration rack, makes Workpiece Rotating through certain way (astragal, shaft coupling, pneumatic or self-powered), and unbalance mass, produces centrifugal force excited vibration mount vibration.The side-to-side vibrations sensor converts vibration signal to electric signal and is input to electric measuring system, and photoelectric sensor then provides a frequency/phase reference signal for system.
At present, domestic detection method to dynamic balancing machine mainly is that employing standard verification rotor carries out self calibration to dynamic balancing machine; This method is to utilize the remaining amount of unbalance of standard rotor itself enough little; The test physical dimension is measured accurately; The error of test mass and rotor is enough little, is the rotor of complete equipilibrium (perfect condition), is equivalent to the standard rotor of a known amount of unbalance dynamic balancing machine calibrated.But this method has related to following deficiency:
1) value of standard verification rotor and phase angle position have the repeatability of height, and standard verification rotor must be strict rotational symmetry, and the machining aspect is difficult to realize;
2) in order to reduce the variation of rotor bearing place to the physical dimension of correcting plane, improve calibration accuracy, the shape of standard verification rotor must be consistent with balanced rotation parts shape, and this also is difficult to realize aspect machining;
3) for the amount of unbalance of basis of calculation rotor, need measure accurately, but at present the measurement of eccentric throw still not had the reliable method accurately that reaches, amount of unbalance can't be traced to the source the eccentric throw of standard rotor.
Summary of the invention
The technical matters that the utility model will solve:
A kind of measurement mechanism that is used for dynamic balancing machine calibration is provided, with solve standard verification rotor be difficult to realize aspect the machining etc. problem; For the amount of unbalance of basis of calculation rotor, need measure accurately the eccentric throw of standard rotor, but at present still not have reliable and method accurately the measurement of eccentric throw, make amount of unbalance problem such as can't trace to the source.
The utility model technical scheme:
A kind of measurement mechanism that is used for the dynamic balancing machine calibration; It comprises: high precision eddy current displacement sensor and high precision photoelectric sensor; High precision eddy current displacement sensor and high precision photoelectric sensor are separately fixed on the dynamic balancing machine pedestal through mounting bracket; The inductive head of high precision eddy current displacement sensor is aimed at vibration rack, and the inductive head of high precision photoelectric sensor is aimed at rotor.
The inductive head of high precision eddy current displacement sensor is no more than 20mm apart from the distance of vibration rack.
The inductive head of high precision photoelectric sensor is no more than 500mm apart from the distance of rotor.
The beneficial effect of the utility model:
Adopt high precision eddy current displacement sensor and high precision photoelectric frequency recorder; Through the noncontact mode; Directly read the vibration displacement and the frequency/phase reference signal of transient equilibrium checkout equipment; Draw calibration result through computed in software again, compare through measurement result at last, accomplish the calibration of whole system with dynamic balancing machine.
Compared with prior art; The technique effect that the utility model reaches is: 1) the utility model adopts high precision eddy current displacement sensor measuring vibrations displacement signal in whole calibration process; Base and tach signal when adopting the high precision photoelectric sensor measurement; Realize non-contact measurement, avoided on dynamic balancing machine rotor and support thereof, increasing quality, and then caused the deviation of measurement result; 2) the utility model is in whole calibration process, and its calibrating principle is consistent with the principle of work of dynamic balancing machine, can fundamentally solve the problem of tracing to the source of dynamic balancing machine; 3) because traditional calibration can not solve the machining precision problem of standard rotor; Therefore calibration accuracy is not high; And the calibration steps that the utility model adopts has thoroughly been abandoned standard rotor, solved fundamentally that standard verification rotor is difficult to realize aspect machining etc. problem.
Description of drawings
Fig. 1 is dynamic balancing machine schematic diagram and sensor installation site figure.
Embodiment
Through present embodiment, the content of the utility model is done further explain:
A kind of measurement mechanism that is used for the dynamic balancing machine calibration; It comprises (see figure 1): high precision eddy current displacement sensor (9) and high precision photoelectric sensor (10) are separately fixed on the dynamic balancing machine pedestal (5) through mounting bracket; The inductive head of high precision eddy current displacement sensor (9) is aimed at vibration rack (4), and the inductive head of high precision photoelectric sensor (10) is aimed at rotor (1).
The inductive head of high precision eddy current displacement sensor (9), be damaged in order to prevent inductive head, so inductive head should greater than more than how many 2mm apart from the distance of vibration rack because vibration rack has vibrations apart from the not ultra 20mm of distance of vibration rack (4).
The inductive head of high precision photoelectric sensor (10) is no more than 500mm apart from the distance of rotor (1), because rotor rotates, is damaged in order to prevent inductive head, and its distance must greater than how many 5mm.
The transient equilibrium checkout equipment mainly is made up of three big parts such as mechanical vibrating system, drive system and electric measurement systems.Balanced rotor (1); Be bearing on the dynamic balancing machine vibration rack (4), make Workpiece Rotating through certain way (astragal, shaft coupling, pneumatic or self-powered), when dynamic balancing machine moves; Unbalance mass, produces centrifugal force excited vibration support (4) vibration; Side-to-side vibrations sensor (2) and (3) convert vibration signal to electric signal and are input to electric measuring system, and photoelectric sensor (6) then provides a frequency/phase reference signal for system, finally obtain the amount of unbalance of rotor through computed in software; The vibration displacement signal of calibrating installation through high precision eddy current displacement sensor (9) measuring vibrations support (4) calculates the amount of unbalance of this rotor through the reference signal that collects with high precision photoelectric sensor (10); The result that final calibrating installation obtains and the measurement result of dynamic balancing machine compare, and can accomplish the calibration of whole system.
Claims (3)
1. one kind is used for the measurement mechanism that dynamic balancing machine is calibrated; It comprises: high precision eddy current displacement sensor (9) and high precision photoelectric sensor (10); It is characterized in that: high precision eddy current displacement sensor (9) and high precision photoelectric sensor (10) are separately fixed on the dynamic balancing machine pedestal (5) through mounting bracket; The inductive head of high precision eddy current displacement sensor (9) is aimed at vibration rack (4), and the inductive head of high precision photoelectric sensor (10) is aimed at rotor (1).
2. a kind of measurement mechanism that is used for the dynamic balancing machine calibration according to claim 1, it is characterized in that: the inductive head of high precision eddy current displacement sensor (9) is no more than 20mm apart from the distance of vibration rack (4).
3. a kind of measurement mechanism that is used for the dynamic balancing machine calibration according to claim 1, it is characterized in that: the inductive head of high precision photoelectric sensor (10) is no more than 500mm apart from the distance of rotor (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204536113U CN202329940U (en) | 2011-11-16 | 2011-11-16 | Measuring device for calibration of dynamic balancing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204536113U CN202329940U (en) | 2011-11-16 | 2011-11-16 | Measuring device for calibration of dynamic balancing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202329940U true CN202329940U (en) | 2012-07-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204536113U Expired - Lifetime CN202329940U (en) | 2011-11-16 | 2011-11-16 | Measuring device for calibration of dynamic balancing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202329940U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107478385A (en) * | 2015-05-19 | 2017-12-15 | 郭卫建 | A kind of generation can trace to the source amount of unbalance counterweight preparation method |
| CN113029439A (en) * | 2019-12-24 | 2021-06-25 | 苏州宝时得电动工具有限公司 | Motor rotor balance detection device and motor rotor balance detection method and equipment |
-
2011
- 2011-11-16 CN CN2011204536113U patent/CN202329940U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107478385A (en) * | 2015-05-19 | 2017-12-15 | 郭卫建 | A kind of generation can trace to the source amount of unbalance counterweight preparation method |
| CN113029439A (en) * | 2019-12-24 | 2021-06-25 | 苏州宝时得电动工具有限公司 | Motor rotor balance detection device and motor rotor balance detection method and equipment |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120711 |
|
| CX01 | Expiry of patent term |