CN202710248U - Dynamic balancing testing stand - Google Patents
Dynamic balancing testing stand Download PDFInfo
- Publication number
- CN202710248U CN202710248U CN 201220276016 CN201220276016U CN202710248U CN 202710248 U CN202710248 U CN 202710248U CN 201220276016 CN201220276016 CN 201220276016 CN 201220276016 U CN201220276016 U CN 201220276016U CN 202710248 U CN202710248 U CN 202710248U
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- pole
- rocker
- dynamic balance
- test stand
- transmission shaft
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Abstract
The utility model relates to a dynamic balancing testing stand, including a support, rigid swing frames, clamps, a transmission shaft and a sensor mounting frame, wherein a sensor is arranged on the sensor mounting frame; the rigid swing frames includes a first swing frame and a second swing frame which are respectively arranged at two ends of the support; the first swing frame and the second swing frame are fixedly provided with a first clamp and a second clamp respectively; the first clamp is used for positioning and supporting the transmission shaft; the second clamp is used for positioning and supporting the to-be-tested components; the transmission shaft is connected with the to-be-tested components; the sensor mounting frame is arranged between the first swing frame and the second swing frame; according to the structure, a pair of rigid swing frames are arranged on the support; the clamps position and support the transmission shaft and the components between the pair of rigid swing frames; and the sensor mounting frame which is provided with the sensor is arranged between the pair of rigid swing frames, thus forming the main body of the dynamic balancing testing stand. The dynamic balancing testing stand has the advantages of being simple in structure, guaranteeing the positioning accuracy for the to-be-tested components, being convenient to operate, and guaranteeing the accuracy of the tested data.
Description
Technical field
The utility model relates to a kind of dynamic balance test stand, in particular for the high-speed balancing test of aeromotor part and the dynamic balance test stand of proofreading and correct.
Background technology
The parts that rotate such as rotor of various transmission shafts, main shaft, motor and steam turbine etc., are referred to as solid of revolution.In ideal conditions, in solid of revolution when rotation,, the pressure that bearing is produced was the same when not rotating, and such solid of revolution is the solid of revolution of balance.But the various solid of revolution in the engineering, because the many factors such as error that produce in the defective of material itself and design, processing and the assembling, so that solid of revolution when rotated, the centrifugal intertia force that each small particle produces on it can not be cancelled out each other, and centrifugal intertia force is applied on machinery and the basis thereof by bearing, causes vibration, produced noise, accelerate bearing wear, shortened mechanical life, can damage incidents when serious.For this reason, must make its balance accuracy grade that reaches permission to balancing rotor, or make so the mechanical vibration amplitude that produces is fallen in allowed limits.Transient equilibrium is proofreaied and correct balance exactly simultaneously on two rectifying planes of rotor, the residual unbalance, after guaranteeing to proofread and correct is in the specialized range of allowable amount of unbalance when rotor is dynamic.
Aeromotor is very accurate equipment, has wherein comprised the solid of revolution that carries out in a large number high speed rotary motion, and therefore, high-speed balancing is requisite technical requirement in the aeromotor development.Because the test method of high-speed balancing is special, with high content of technology, has carried out the commercial technology blockade abroad in addition, domesticly still be in the initial stage of groping.Therefore, be necessary to design a kind of dynamic balance test stand, it can accurately be located part to be tested and install, and makes it reach the working speed that needs, thus the every test figure of Measurement accuracy.
For the demand that exists in the prior art, effective solution is proposed not yet at present.
The utility model content
Fundamental purpose of the present utility model provides a kind ofly can treat the dynamic balance test stand that test part is accurately located and installed, and it is simple in structure, and accurate positioning is easy to operate, and process of the test is stable, reliable.
To achieve these goals, according to an aspect of the present utility model, provide a kind of dynamic balance test stand, comprised support, rigid rocker, anchor clamps, transmission shaft and the sensor mount of sensor is installed; Described rigid rocker comprises the first rocker and the second rocker, and they are separately positioned on the two ends of described support; Be fixedly installed respectively the first anchor clamps and the second anchor clamps on described the first rocker and the second rocker, described transmission shaft is located and supported to described the first anchor clamps, and described the second anchor clamps are located and supported part to be tested, and described transmission shaft and part to be tested interconnect; Described sensor mount is arranged between described the first rocker and the second rocker.
According to the technical solution of the utility model, by at support a pair of rigid rocker being installed, re-using anchor clamps locates transmission shaft and part to be tested and be supported between a pair of rigid rocker, and the sensor mount that sensor will be installed is arranged between the described rigid rocker, consisted of the main body of dynamic balance test stand, it is simple in structure, has guaranteed the accurate positioning of part to be measured, easy to operate, guaranteed the accuracy of test figure.
Further, in described dynamic balance test stand, described the first rocker and described the second rocker are arranged on the described support movably along the axis direction of described support.Thus, can require to adjust according to the difference of test the lateral attitude of described the first rocker or the second rocker, easy to operate.
Further, in described dynamic balance test stand, described sensor mount is arranged on the described support movably along the axis direction of described support.Thus, can adjust neatly the lateral attitude of described sensor mount, the sensor of just installing thereon carries out test job.
Further, in described dynamic balance test stand, described sensor mount comprises rack body, the first pole, the second pole and the 3rd pole, described the first pole can be stretched up and down in the cavity of described rack body, and described the second pole and described the 3rd pole all are arranged on the top of described the first pole.Thus, can adjust the height of described sensor mount, be conducive to the sensor on it is placed suitable working position.
Further, in described dynamic balance test stand, described the second pole is mutually vertical with described the 3rd pole, and their end is intersected in the top of described the first pole.Thus, the part to be tested of for example axle and so on can be placed in the angle of described the second pole and the 3rd pole formation, conveniently part be tested.
Further, in described dynamic balance test stand, described the second pole and described the 3rd pole have respectively telescopic arm, and installation of sensors is on described arm.Thus, can adjust the development length of described the second pole and described the 3rd pole, thereby more be conducive to adjust the position of sensor.
Further, in described dynamic balance test stand, described transmission shaft comprises interconnective the first coupling shaft and the second coupling shaft.Thus, if produced positioning error between transmission shaft and the part, can adjust or compensate described positioning error by the connection between described the first coupling shaft and the second coupling shaft, thereby improve the right alignment between transmission shaft and the part.
Further, in described dynamic balance test stand, described the first coupling shaft has involute urve straight-tooth spline, described the second coupling shaft has involute urve barreled tooth flank spline, and described the first coupling shaft and described the second coupling shaft interconnect by described involute urve straight-tooth spline and described involute urve barreled tooth flank spline.Thus, divide the syndeton that has formed involute urve straight-tooth-involute urve barreled tooth flank by the middle interconnecting piece at described transmission shaft, utilize the structure of barreled tooth flank to enlarge contact Tooth, thereby improved the error compensation ability of described transmission shaft, be conducive to improve the right alignment of whole gear train.
Description of drawings
Figure of description is used to provide further understanding of the present utility model, consists of a part of the present utility model, and illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not consist of improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the schematic diagram according to the part-structure of dynamic balance test stand of the present utility model;
Fig. 2 (a) is the front elevation according to rigid rocker of the present utility model;
Fig. 2 (b) is the vertical view according to rigid rocker of the present utility model;
Fig. 3 is the mounting structure schematic diagram according to transmission shaft of the present utility model;
Fig. 4 is the structural representation according to sensor mount of the present utility model.
Embodiment
Need to prove, in the situation that clearly limit or do not conflict, the feature among each embodiment of the present utility model can make up mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the utility model in detail.
In order to satisfy the demand of the parts of aeromotor being carried out the high-speed balancing test, the utility model provides a kind of dynamic balance test stand, comprises support, rigid rocker, anchor clamps, transmission shaft and the sensor mount of sensor is installed.Fig. 1 is the schematic diagram according to the part-structure of dynamic balance test stand of the present utility model, and the support (not shown) for example is arranged at firmly on the ground, as the basis of supporting whole dynamic balance test stand.Be provided with a pair of rigid rocker (not shown) at described support, it comprises the first rocker and the second rocker that is oppositely arranged at the support two ends respectively, and described the first rocker and the second rocker are located by connecting with the first anchor clamps 1 and the second anchor clamps 2 that arrange thereon respectively.Described the first anchor clamps 1 are used for the location and support described transmission shaft 3, and described the second anchor clamps 2 are used for the location and support part to be tested 4, and described transmission shaft 3 interconnects with part 4.The sensor mount (not shown) is arranged between described the first rocker and the second rocker, is used for one or more sensors of the every data of installation testing part.
The driving shaft (not shown) is connected to the transmission shaft 3 in described dynamic balance test stand left side by for example spring coupling, rotary torque is passed to part 4, so that part 4 High Rotation Speeds reach working speed, at this moment, can utilize the sensor on the sensor mount that part 4 is carried out every test, the recycling test result is proofreaied and correct part 4, by repeatedly testing and proofreading and correct, so that described part finally meets requirement for dynamic balance.
Fig. 2 (a) is the front elevation according to rigid rocker of the present utility model, and Fig. 2 (b) is the vertical view according to rigid rocker of the present utility model.Such as Fig. 2 (a) with 2(b), described rigid rocker is the framed structure with rigidity, be provided with key 5 in the center of its end face, each rigid rocker positions by described upper key 5 and corresponding anchor clamps, and firmly links to each other with these anchor clamps by bindiny mechanism.Also be provided with lower key 6 in the bottom surface of each rigid rocker, the relevant position of the guide rail of support offer along the support axis direction (namely figure (a) and 2(b) shown in left and right directions) the keyway (not shown) of extending, gap is to a certain degree arranged between lower key 6 and the keyway, so that rigid rocker can move along the support axis direction, thereby adjust its position, in order to test the part of various different sizes.Described rigid rocker can be realized described position movement by for example gear or the chain-wheel mechanism that are installed on the support, certainly, also can adopt other common mode to realize.Behind the location positioning of rigid rocker, can limit it by stationary installation and move.
Return Fig. 1, the first anchor clamps 1 lower end that is positioned at the dynamic balance test stand left side is connected with the first rocker key, and the first anchor clamps are that transmission shaft 3 provides support and locates; Corresponding with it, the second anchor clamps 2 lower ends that are positioned at the dynamic balance test stand right side are connected with the second rocker key, and the second anchor clamps are that part 4 to be tested provides support and locates, and described part for example is a major axis.By adjusting the first anchor clamps 1 and the second anchor clamps 2, so that transmission shaft 3 and part 4 accurate location each other, in order to interconnect.
Fig. 3 is the mounting structure schematic diagram according to transmission shaft of the present utility model, shown in this figure transmission shaft 3 and part 4 interconnective states.Wherein, transmission shaft 3 is different from the structure of a traditional stiff shaft, and it comprises interconnective two parts: the first coupling shaft 7 and the second coupling shaft 8.Thereby, when error appears in transmission shaft and the part centre of location, can be adjusted and be compensated by the connection between the first coupling shaft and the second coupling shaft, be conducive to guarantee the right alignment between transmission shaft and the part.
In the present embodiment, the left side connecting portion of the first coupling shaft 7 links to each other with driving shaft by for example spring coupling on the left side, thereby transmits the moment of torsion of driving shaft.The right side connecting portion of the first coupling shaft 7 is on the inner peripheral surface of axle endoporus, and this connecting portion has involute urve straight-tooth spline.The second coupling shaft 8 comprises the head that lays respectively at axle main body two ends, connecting portion on the head of left side has involute urve barreled tooth flank spline, involute urve straight-tooth spline on the right side connecting portion of itself and the first coupling shaft 7 is complementary, and has realized interconnecting between the second coupling shaft 8 and the first coupling shaft 7.Connecting portion on the second coupling shaft 8 right side heads can have involute urve straight-tooth spline, and itself and part 4 are connected, thereby by described transmission shaft, the moment of torsion of driving shaft finally passes to part 4.
Thus, divide the syndeton that has formed involute urve straight-tooth-involute urve barreled tooth flank by the middle interconnecting piece at described transmission shaft, utilize the structure of barreled tooth flank to enlarge contact Tooth, thereby improved the error compensation ability of described transmission shaft, be conducive to improve the right alignment of whole gear train.
The profile of tooth of described involute urve straight-tooth spline and involute urve barreled tooth flank spline preferably adopts the identical grade of tolerance, the number of teeth, modulus and pressure angle, makes and combination with convenient, for example can adopt that the 6H grade of tolerance, the number of teeth are 16, modulus 2, pressure angle 30 degree.
As shown in Figure 3, angular contact ball bearing 9 can also be set at the outer circumference surface of described the first coupling shaft 7, described angular contact ball bearing is installed on the stationary positioned cover 10, and described stationary positioned cover is fixedly attached to the second anchor clamps 2.Described angular contact ball bearing can bear take radial load as main radially, axial connected load, thereby can guarantee better right alignment, quality of fit and stability between transmission shaft and the part.
Preferably, for the weight that alleviates the first coupling shaft 7 and reduce cost, the first coupling shaft 7 is tubular shaft, but the first coupling shaft left part has less hollow internal diameter, so that form the left side connecting portion and improve its strength of joint, the connecting portion on the first coupling shaft right side is formed on the inner peripheral surface of hollow hole.
Fig. 4 is the structural representation according to sensor mount of the present utility model, and described sensor mount is arranged between described the first rocker and the second rocker, is used for sensor installation, in order to measure every test data of part.Sensor mount 11 can be fixedly mounted on the support by bolt device etc., also can arrange movably along the support axis direction, thereby can adjust its position along this axis direction, to satisfy different test conditions.
As shown in Figure 4, sensor mount 11 comprises rack body 12, the first pole 13, the second pole 14 and the 3rd pole 15.Rack body 12 can be for example with the structure of cavity, so that the first pole 13 can be flexible up and down in the cavity of rack body 12 inside, thereby change the whole height of sensor mount 11, in case determine that the first pole 13 can be fixed on the rack body 12 by stationary installation after the suitable height.
Described the second pole and the 3rd pole all are arranged on the top of described the first pole, are preferably the second pole 14 mutually vertical with the 3rd pole 15, and their end is intersected in the top of the first pole 13.According to such structure, when the part of for example axle and so on is tested, described part 4 is positioned at the angle that described the second pole 14 and the 3rd pole 15 consist of, that is to say two poles with part to be tested " double team " in the centre, thereby can carry out the measurement of every data to part 4 more easily.The second pole 14 and the 3rd pole 15 are all with telescopic arm, and described arm is fixing in place by stationary installation.According to the test needs, sensor 16 can be installed in the correct position on the second pole 14 and the 3rd pole 15 arm separately.
By the many places Collapsible structure of described sensor mount, increased the adjustable of sensing station on all directions, be conducive to installation of sensors in suitable test position, thereby can obtain more comprehensively and test data more accurately.
Dynamic balance test stand according to embodiment of the present utility model has been described according to Fig. 1-Fig. 4 in the front.Obviously, those skilled in the art should be understood that, the all parts of dynamic balance test stand of the present utility model is not limited to the described concrete structure of this embodiment, for example, described first or the concrete structure of each connecting portion of the second coupling shaft, can determine according to the factors such as convenience of the parts, processing or the connection that cooperate with it.Be combined and installed together by the mode that the utility model limits as long as can realize all parts of corresponding function, and can realize the dynamic balance running of part and the purpose of correction, all belong to embodiment of the present utility model.
The above is preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (8)
1. a dynamic balance test stand is characterized in that, comprises support, rigid rocker, anchor clamps, transmission shaft and the sensor mount of sensor is installed; Described rigid rocker comprises the first rocker and the second rocker, and they are separately positioned on the two ends of described support; Be fixedly installed respectively the first anchor clamps and the second anchor clamps on described the first rocker and the second rocker, described transmission shaft is located and supported to described the first anchor clamps, and described the second anchor clamps are located and supported part to be tested, and described transmission shaft and part to be tested interconnect; Described sensor mount is arranged between described the first rocker and the second rocker.
2. dynamic balance test stand according to claim 1 is characterized in that, described the first rocker and described the second rocker are arranged on the described support movably along the axis direction of described support.
3. dynamic balance test stand according to claim 1 is characterized in that, described sensor mount is arranged on the described support movably along the axis direction of described support.
4. dynamic balance test stand according to claim 3, it is characterized in that, described sensor mount comprises rack body, the first pole, the second pole and the 3rd pole, described the first pole can be stretched up and down in the cavity of described rack body, and described the second pole and described the 3rd pole all are arranged on the top of described the first pole.
5. dynamic balance test stand according to claim 4 is characterized in that, described the second pole is mutually vertical with described the 3rd pole, and their end is intersected in the top of described the first pole.
6. dynamic balance test stand according to claim 5 is characterized in that, described the second pole and described the 3rd pole have respectively telescopic arm, and installation of sensors is on described arm.
7. each described dynamic balance test stand is characterized in that according to claim 1-6, and described transmission shaft comprises interconnective the first coupling shaft and the second coupling shaft.
8. dynamic balance test stand according to claim 7, it is characterized in that, described the first coupling shaft has involute urve straight-tooth spline, described the second coupling shaft has involute urve barreled tooth flank spline, and described the first coupling shaft and described the second coupling shaft interconnect by described involute urve straight-tooth spline and described involute urve barreled tooth flank spline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220276016 CN202710248U (en) | 2012-06-12 | 2012-06-12 | Dynamic balancing testing stand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220276016 CN202710248U (en) | 2012-06-12 | 2012-06-12 | Dynamic balancing testing stand |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202710248U true CN202710248U (en) | 2013-01-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220276016 Expired - Fee Related CN202710248U (en) | 2012-06-12 | 2012-06-12 | Dynamic balancing testing stand |
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| Country | Link |
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| CN (1) | CN202710248U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104458127A (en) * | 2014-12-05 | 2015-03-25 | 南车洛阳机车有限公司 | Hard bearing dynamic balancing machine precision detection and verifying unit and precision calibration process |
| CN106017795A (en) * | 2016-06-28 | 2016-10-12 | 中国南方航空工业(集团)有限公司 | Compressor rotor balancing clamp |
| CN106644267A (en) * | 2016-12-27 | 2017-05-10 | 中国南方航空工业(集团)有限公司 | Dynamic balance test assembly for power turbine unit |
| CN113865788A (en) * | 2021-11-30 | 2021-12-31 | 河北瑞兆激光再制造技术股份有限公司 | Dynamic balance detecting and mounting device for power turbine |
-
2012
- 2012-06-12 CN CN 201220276016 patent/CN202710248U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104458127A (en) * | 2014-12-05 | 2015-03-25 | 南车洛阳机车有限公司 | Hard bearing dynamic balancing machine precision detection and verifying unit and precision calibration process |
| CN104458127B (en) * | 2014-12-05 | 2017-04-19 | 南车洛阳机车有限公司 | Hard bearing dynamic balancing machine precision detection and verifying unit and precision calibration process |
| CN106017795A (en) * | 2016-06-28 | 2016-10-12 | 中国南方航空工业(集团)有限公司 | Compressor rotor balancing clamp |
| CN106644267A (en) * | 2016-12-27 | 2017-05-10 | 中国南方航空工业(集团)有限公司 | Dynamic balance test assembly for power turbine unit |
| CN113865788A (en) * | 2021-11-30 | 2021-12-31 | 河北瑞兆激光再制造技术股份有限公司 | Dynamic balance detecting and mounting device for power turbine |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 412002 Dong Jiaduan, Zhuzhou, Hunan Patentee after: China Hangfa South Industrial Co. Ltd. Address before: 412002 Dong Jiaduan, Zhuzhou, Hunan Patentee before: China Southern Airlines Industry (Group) Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130130 Termination date: 20200612 |