CN210603730U - Dynamic balance test mechanism for lamellar propeller - Google Patents
Dynamic balance test mechanism for lamellar propeller Download PDFInfo
- Publication number
- CN210603730U CN210603730U CN201921759609.1U CN201921759609U CN210603730U CN 210603730 U CN210603730 U CN 210603730U CN 201921759609 U CN201921759609 U CN 201921759609U CN 210603730 U CN210603730 U CN 210603730U
- Authority
- CN
- China
- Prior art keywords
- test
- propeller
- dynamic balance
- shaft
- dynamic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Testing Of Balance (AREA)
Abstract
The utility model discloses a slice screw dynamic balance test mechanism has solved prior art and can not accomplish the problem of dynamic balance compensation scientifically and reasonably when carrying out dynamic balance test to slice screw. A test support frame (5) is arranged on the dynamic balance testing machine (4), a left support thin shaft (2) is fixedly arranged at the center of the side surface of the left end of the step mandrel (1), a right support thin shaft (3) is fixedly arranged at the center of the side surface of the right end of the step mandrel (1), and the central axis of the step mandrel (1), the central axis of the left support thin shaft (2) and the central axis of the right support thin shaft (3) are superposed together; the middle position of the step mandrel (1) is sleeved with the sheet-shaped propeller (6), and the test shaft of the integrated machine addition type sleeved with the sheet-shaped propeller (6) is arranged on the test support frame (5) of the dynamic balance testing machine (4). The dynamic balance weight-removing or weighting operation of the lamellar propeller is accurately and quickly solved.
Description
Technical Field
The invention relates to a dynamic balance test mechanism of a revolving body, in particular to a dynamic balance test mechanism and a dynamic balance test method of a sheet-shaped propeller.
Background
Before the propeller rotates at a high speed, a dynamic balance test is required to determine whether the propeller can realize balanced rotation or not during high-speed rotation; the dynamic balance test is carried out on a dynamic balance testing machine, the propeller is placed on a rotating bracket of the dynamic balance machine, the rotating bracket is subjected to rotation measurement, and according to the measured data, the two end surfaces of the propeller shaft of the propeller are subjected to drilling, weight removal or weight adding treatment to achieve dynamic balance; in the existing propeller dynamic balance test, a dynamic balancing machine respectively measures and obtains respective dynamic unbalance amounts on two end surfaces of a propeller, a tester compares the obtained dynamic unbalance amounts on the two end surfaces with the maximum dynamic unbalance amount value of the propeller in sequence to determine the positions and compensation amounts of drilling and weight removal or weighting, and then drilling and weight removal or weighting operation on the two end surfaces is carried out; repeating the processes for multiple times until the dynamic balancer respectively measures that the respective dynamic unbalance amounts on the two end faces of the propeller are smaller than the maximum dynamic unbalance amount value of the propeller, thereby completing the dynamic balance compensation work of the propeller; when the propeller shaft of the propeller is a slender hollow shaft, the distance between two end surfaces of the propeller shaft is far, so that the dynamic unbalance of the other end surface cannot be directly influenced by performing weighting or de-weighting treatment on one end surface according to the dynamic unbalance measured by the dynamic balancing machine, and the dynamic balance of the propeller can be finally realized by the conventional dynamic balance test and drilling supplement operation; when the propeller is a sheet propeller, even though the dynamic balancing machine can also accurately measure the dynamic unbalance vector on two end faces of the sheet propeller, after the drilling weighting or the de-weighting is carried out on one end face according to the measured dynamic unbalance vector on the other end face, because the axial distances of the two end faces are too close, the weighting or de-weighting processing quantity carried out on one end face can be directly transmitted to the other end face to directly influence the dynamic unbalance quantity on the other end face, the drilling weighting or the de-weighting operation of the dynamic unbalance on site is often caused, after repeated times, the sheet propeller is still in a dynamic unbalance state, and even under the condition that the drilling can not be carried out on the end face any more, the sheet propeller is still in the dynamic unbalance state.
Disclosure of Invention
The invention provides a dynamic balance test mechanism and a dynamic balance test method for a sheet-shaped propeller, and solves the technical problem that dynamic balance compensation cannot be scientifically and reasonably completed when the sheet-shaped propeller is subjected to a dynamic balance test in the prior art.
The invention solves the technical problems by the following technical scheme:
the general concept of the invention is: the invention still adopts the traditional shaft product dynamic balance test method, measures the dynamic unbalance amount of the sheet-shaped propeller, measures each automatic unbalance vector on two end surfaces of the sheet-shaped propeller, carries out vector synthesis on the two vectors to obtain a synthetic vector of the dynamic unbalance amount, compares the synthetic vector of the dynamic unbalance amount with the maximum allowable dynamic unbalance amount of the sheet-shaped propeller, completes dynamic unbalance compensation if the synthetic vector is smaller than the maximum dynamic unbalance amount, carries out reaming weighting or de-weighting treatment on the respective end surfaces according to the measured dynamic unbalance indexes on the respective end surfaces if the synthetic vector is larger than the maximum dynamic unbalance amount, carries out dynamic balance test after treatment to obtain new dynamic unbalance vectors of the two end surfaces, carries out new dynamic unbalance vector synthesis of the two end surfaces, compares the new synthesized dynamic unbalance vector with the maximum allowable dynamic unbalance amount of the sheet-shaped propeller, this is repeated until the latest resultant dynamic unbalance vector is smaller than the maximum allowable dynamic unbalance amount of the laminar propeller.
A dynamic balance test mechanism for a lamellar propeller comprises a dynamic balance test machine and a test shaft, wherein a test support frame is arranged on the dynamic balance test machine, the test shaft is an integrated machine addition type test shaft, the middle part of the test shaft is a step mandrel, a left support thin shaft is fixedly arranged at the center of the side face of the left end of the step mandrel, a right support thin shaft is fixedly arranged at the center of the side face of the right end of the step mandrel, and the central axis of the step mandrel, the central axis of the left support thin shaft and the central axis of the right support thin shaft are superposed together; the middle position of the step mandrel is sleeved with the sheet-shaped propeller, and the test shaft of the integrated machine additionally-formed shaft sleeved with the sheet-shaped propeller is arranged on the test support frame of the dynamic balance testing machine.
One fifth of the maximum dynamic unbalance value A allowed by the laminar propeller is equal to the maximum dynamic unbalance value B allowed by the test shaft of the integrated machine.
A dynamic balance test method of a sheet-shaped propeller dynamic balance test mechanism comprises the following steps:
the method comprises the following steps that firstly, a step mandrel is arranged in the middle of a test shaft which is formed by an integrated machine in a machining mode, a left supporting thin shaft is fixedly arranged at the center of the side face of the left end of the step mandrel, a right supporting thin shaft is fixedly arranged at the center of the side face of the right end of the step mandrel, and the central axis of the step mandrel, the central axis of the left supporting thin shaft and the central axis of the right supporting thin shaft are superposed together;
secondly, obtaining a maximum dynamic unbalance value A allowed by the sheet-shaped propeller, and defining one fifth of the maximum dynamic unbalance value A allowed by the sheet-shaped propeller as a maximum dynamic unbalance value B allowed by a shaft for an all-in-one machine addition test;
thirdly, placing the test shaft additionally formed on the integrated machine on a test support frame of the dynamic balance test machine, starting the dynamic balance test machine, performing dynamic balance test on the test shaft additionally formed on the integrated machine, and performing drilling and weight removal or weighting treatment on the side surfaces of two ends of the step mandrel to ensure that the dynamic unbalance amount of the test shaft additionally formed on the integrated machine is not more than the maximum dynamic unbalance amount value B allowed by the test shaft additionally formed on the integrated machine;
fourthly, taking the test shaft which is formed by the integrated machine from the test support frame, and sleeving and fixing the sheet-shaped propeller on the middle position of the step mandrel;
fifthly, placing the added shaft for the test of the integrated machine sleeved with the sheet propeller on a test support frame of the dynamic balance test machine again, starting the dynamic balance test machine to perform a first dynamic balance test, and reading the weight removal mass m on the left side surface of the sheet propeller displayed on the dynamic balance electromechanical test box after the dynamic balance test is finished1And phase angle α of the deduplicated hole position on the left side of the laminar propeller1Reading the de-weight mass m on the right flank of the laminar propeller displayed on the dynamic balancing electromechanical measuring box2And phase angle α of the depunching position on the right side of the laminar propeller2Setting the value of the radius r of the duplication-removing punching on the two side surfaces of the sheet-shaped propeller, so that the distance between the circumscribed circle of the duplication-removing hole and the outer side surface of the propeller shaft of the sheet-shaped propeller is 10 mm;
sixthly, according to the value of the repeated-removal drilling radius r, the repeated-removal quality and the phase angle of the repeated-removal drilling position determined in the fifth step, drilling and repeated-removal processing is carried out on two side surfaces of the sheet-shaped propeller;
and seventhly, calculating a synthetic vector U of the dynamic unbalance amounts on the two side surfaces of the punched and de-duplicated sheet-shaped propeller, wherein the calculation formula is as follows:
eighthly, comparing the synthetic vector U of the calculated dynamic unbalance amount with the maximum allowable dynamic unbalance amount of the sheet-shaped propeller, if the synthetic vector U of the calculated dynamic unbalance amount is not larger than the maximum allowable dynamic unbalance amount of the sheet-shaped propeller, successfully compensating the dynamic unbalance amount, and if the synthetic vector U of the calculated dynamic unbalance amount is larger than the maximum allowable dynamic unbalance amount of the sheet-shaped propeller, repeating the fifth step to the seventh step until the synthetic vector U of the calculated dynamic unbalance amount is not larger than the maximum allowable dynamic unbalance amount of the sheet-shaped propeller;
and ninthly, removing the thin-sheet propeller successfully compensated by the dynamic balance from the step mandrel.
The invention solves the dynamic balance de-weighting or weighting operation of the lamellar propeller by a vector synthesis method of the dynamic unbalance of the two end faces accurately and quickly, thereby leading the lamellar propeller to reach the target value of the dynamic unbalance value.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Detailed Description
The invention is described in detail below with reference to the accompanying drawings:
a dynamic balance test mechanism for a lamellar propeller comprises a dynamic balance test machine 4 and a test shaft, wherein a test support frame 5 is arranged on the dynamic balance test machine 4, the test shaft is an integrated machine addition type test shaft, the middle part of the test shaft is a step mandrel 1, a left support thin shaft 2 is fixedly arranged at the center of the side face of the left end of the step mandrel 1, a right support thin shaft 3 is fixedly arranged at the center of the side face of the right end of the step mandrel 1, and the central axis of the step mandrel 1, the central axis of the left support thin shaft 2 and the central axis of the right support thin shaft 3 are superposed together; the middle position of the step mandrel 1 is sleeved with the sheet-shaped propeller 6, and the test shaft of the integrated machine additionally-formed by the sleeved sheet-shaped propeller 6 is arranged on the test support frame 5 of the dynamic balance testing machine 4.
One fifth of the maximum dynamic unbalance value A allowed by the laminar propeller is equal to the maximum dynamic unbalance value B allowed by the test shaft of the integrated machine.
A dynamic balance test method of a sheet-shaped propeller dynamic balance test mechanism comprises the following steps:
firstly, a step mandrel 1 is arranged in the middle of the test shaft, a left supporting thin shaft 2 is fixedly arranged at the center of the side face of the left end of the step mandrel 1, a right supporting thin shaft 3 is fixedly arranged at the center of the side face of the right end of the step mandrel 1, and the central axis of the step mandrel 1, the central axis of the left supporting thin shaft 2 and the central axis of the right supporting thin shaft 3 are overlapped together;
secondly, obtaining a maximum dynamic unbalance value A allowed by the sheet-shaped propeller, and defining one fifth of the maximum dynamic unbalance value A allowed by the sheet-shaped propeller as a maximum dynamic unbalance value B allowed by a shaft for an all-in-one machine addition test;
thirdly, placing the test shaft additionally formed on the integrated machine on a test support frame 5 of the dynamic balance test machine 4, starting the dynamic balance test machine 4, performing dynamic balance test on the test shaft additionally formed on the integrated machine, and performing drilling, weight removal or weighting treatment on the side surfaces of two ends of the step mandrel 1 to ensure that the dynamic unbalance amount of the test shaft additionally formed on the integrated machine is not more than the maximum dynamic unbalance amount value B allowed by the test shaft additionally formed on the integrated machine;
fourthly, taking down the test shaft which is additionally formed by the integrated machine from the test support frame 5, and fixedly sleeving the sheet-shaped propeller 6 on the middle position of the step mandrel 1, wherein the step mandrel 1 can be manufactured into a slightly tapered shape;
fifthly, placing the added shaft for the test of the integrated machine sleeved with the sheet propeller 6 on the test support frame 5 of the dynamic balance testing machine 4 again, starting the dynamic balance testing machine 4 to perform a first dynamic balance test, and reading the weight removing mass m on the left side surface of the sheet propeller 6 displayed on the dynamic balance electromechanical testing box after the dynamic balance test is finished1And a phase angle α of a deduplicated hole position on the left side face of the sheet-like propeller 61Reading the laminar screw displayed on the electromechanical measuring box of the dynamic balanceWeight removal mass m on the right flank of the propeller 62And a phase angle α of a deduplicating-hole position on the right side of the sheet-like propeller 62Setting the value of the repetition removal punching radius r on the two side surfaces of the sheet-shaped propeller 6, so that the distance between the circumscribed circle of the repetition removal hole and the outer side surface of the propeller shaft of the sheet-shaped propeller 6 is 10 mm;
sixthly, performing punching and de-weighting treatment on two side surfaces of the sheet-shaped propeller 6 according to the value of the de-weighting and punching radius r, the de-weighting quality and the phase angle of the de-weighting and punching position determined in the fifth step;
seventhly, calculating a resultant vector U of the dynamic unbalance amounts on the two side surfaces of the punched and de-duplicated sheet-shaped propeller 6, wherein the calculation formula is as follows:
eighthly, comparing the synthetic vector U of the calculated dynamic unbalance amount with the maximum allowable dynamic unbalance amount of the sheet-shaped propeller, if the synthetic vector U of the calculated dynamic unbalance amount is not larger than the maximum allowable dynamic unbalance amount of the sheet-shaped propeller, successfully compensating the dynamic unbalance amount, and if the synthetic vector U of the calculated dynamic unbalance amount is larger than the maximum allowable dynamic unbalance amount of the sheet-shaped propeller, repeating the fifth step to the seventh step until the synthetic vector U of the calculated dynamic unbalance amount is not larger than the maximum allowable dynamic unbalance amount of the sheet-shaped propeller;
and ninthly, removing the thin-sheet propeller 6 successfully compensated by the dynamic balance from the step mandrel 1.
Claims (2)
1. A dynamic balance test mechanism for a lamellar propeller comprises a dynamic balance test machine (4) and a test shaft, wherein a test support frame (5) is arranged on the dynamic balance test machine (4), and the dynamic balance test mechanism is characterized in that the test shaft is an integrated machine addition type test shaft, the middle part of the test shaft is a step mandrel (1), the center of the side surface of the left end of the step mandrel (1) is fixedly provided with a left support thin shaft (2), the center of the side surface of the right end of the step mandrel (1) is fixedly provided with a right support thin shaft (3), and the central axis of the step mandrel (1), the central axis of the left support thin shaft (2) and the central axis of the right support thin shaft (3) are superposed together; the middle position of the step mandrel (1) is sleeved with the sheet-shaped propeller (6), and the test shaft of the integrated machine addition type sleeved with the sheet-shaped propeller (6) is arranged on the test support frame (5) of the dynamic balance testing machine (4).
2. The dynamic balance test mechanism for the laminar propellers according to claim 1, wherein one fifth of the maximum dynamic unbalance value A allowed by the laminar propellers is equal to the maximum dynamic unbalance value B allowed by a test shaft formed by adding the integrated machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921759609.1U CN210603730U (en) | 2019-10-21 | 2019-10-21 | Dynamic balance test mechanism for lamellar propeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921759609.1U CN210603730U (en) | 2019-10-21 | 2019-10-21 | Dynamic balance test mechanism for lamellar propeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210603730U true CN210603730U (en) | 2020-05-22 |
Family
ID=70720849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921759609.1U Active CN210603730U (en) | 2019-10-21 | 2019-10-21 | Dynamic balance test mechanism for lamellar propeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210603730U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110608845A (en) * | 2019-10-21 | 2019-12-24 | 山西汾西重工有限责任公司 | Dynamic balance test mechanism and dynamic balance test method for lamellar propeller |
| CN114354067A (en) * | 2021-12-16 | 2022-04-15 | 山西汾西重工有限责任公司 | Spindle for dynamic balance of rotator and method for realizing dynamic balance of rotator with long axis-diameter ratio |
| CN114441097A (en) * | 2022-01-10 | 2022-05-06 | 山西汾西重工有限责任公司 | Method and system for realizing dynamic balance of lamellar rotator |
-
2019
- 2019-10-21 CN CN201921759609.1U patent/CN210603730U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110608845A (en) * | 2019-10-21 | 2019-12-24 | 山西汾西重工有限责任公司 | Dynamic balance test mechanism and dynamic balance test method for lamellar propeller |
| CN114354067A (en) * | 2021-12-16 | 2022-04-15 | 山西汾西重工有限责任公司 | Spindle for dynamic balance of rotator and method for realizing dynamic balance of rotator with long axis-diameter ratio |
| CN114441097A (en) * | 2022-01-10 | 2022-05-06 | 山西汾西重工有限责任公司 | Method and system for realizing dynamic balance of lamellar rotator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110608845A (en) | Dynamic balance test mechanism and dynamic balance test method for lamellar propeller | |
| CN210603730U (en) | Dynamic balance test mechanism for lamellar propeller | |
| US5214585A (en) | Balancing method and product | |
| CN105021349B (en) | Method for acquiring unbalance amount of rotor | |
| JP6431550B2 (en) | How to determine the amount of unbalance in the rotor | |
| CN104903693B (en) | It is determined that the method and apparatus of processing axis | |
| JPH0665976B2 (en) | Apparatus and method for calibrating a wheel balancer on two sides | |
| CN204788804U (en) | Rotor combination piece | |
| CN105865783A (en) | Method for measuring characteristics of sliding bearing film | |
| ITMI932569A1 (en) | PROCEDURE AND DEVICE FOR THE DYNAMIC BALANCING OF A ROTOR | |
| JP7382143B2 (en) | How to calibrate a balancing machine | |
| EP3156158A1 (en) | Hollow rotating shaft-finishing method and hollow rotating shaft | |
| CN110530259A (en) | A kind of adjustable pitch airscrew pitch measurement method | |
| US11060941B2 (en) | Method for determining an unbalance of a shaft-elastic rotor with reference to the outward deflection | |
| CN104930953B (en) | The four-point method measurement apparatus and measuring method of machine part cylindricity error | |
| DE3044440A1 (en) | Measuring shaft vibrations caused by imbalances - using two sensors and two measurement speeds for static and dynamic separation | |
| CN100504892C (en) | Crankshaft dynamic balance design method | |
| CN110926702B (en) | Dynamic balance correction method and automation equipment using same | |
| US5243788A (en) | Grinding wheel balancing method and apparatus | |
| US1515034A (en) | Method of balancing crank shafts | |
| CN110926699A (en) | Rotor dynamic balance correction method and automation equipment using same | |
| CN109847952B (en) | Dynamic balance method of double-shaft precision centrifuge turntable based on driving current | |
| GB2515062A (en) | Method and apparatus for balancing a rotor | |
| CN113358354A (en) | High-precision bearing information measuring method and measuring device | |
| CN113358282B (en) | Low-speed orthogonal fusion dynamic balancing method for composite material tail shaft on dynamic balancing machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |