CN114184318A - Design method and structure of externally-supported clamping jaw for dynamic balance test of axis-free rotating body - Google Patents
Design method and structure of externally-supported clamping jaw for dynamic balance test of axis-free rotating body Download PDFInfo
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- CN114184318A CN114184318A CN202111292762.XA CN202111292762A CN114184318A CN 114184318 A CN114184318 A CN 114184318A CN 202111292762 A CN202111292762 A CN 202111292762A CN 114184318 A CN114184318 A CN 114184318A
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- main shaft
- shaftless
- collet chuck
- tensioning sleeve
- rotator
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- 238000012360 testing method Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000013461 design Methods 0.000 title claims abstract description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 10
- 229910052742 iron Inorganic materials 0.000 abstract description 5
- 238000001514 detection method Methods 0.000 abstract description 2
- 238000012937 correction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M1/00—Testing static or dynamic balance of machines or structures
- G01M1/02—Details of balancing machines or devices
Abstract
The invention discloses a design method and a structure of an externally-supported clamping jaw for a dynamic balance test of a shaftless rotator, and relates to the technical field of dynamic balance detection of shaftless rotators. The clamping jaw of dynamic balance test machine passes through outside tensile force, with the tight cover that rises of main shaft tip and the hole fastening of surveyed shaftless rotator as an organic whole, after removing through the main shaft, the inside tapering of the tight cover that rises and collet chuck tip taper fit for the main shaft removes the in-process, the tight cover that rises is strutted outward through conical surface size fit, make originally with the increase of the circular size external diameter of being surveyed shaftless rotator hole sliding fit, form the tight cover outer loop tight fit that rises of the hole of being surveyed shaftless rotator and main shaft tip. After the main shaft moves, the inner taper of the tensioning sleeve is matched with the end taper of the collet chuck, so that the tensioning sleeve is outwards expanded through the size matching of the conical surfaces in the moving process of the main shaft, and the test problem of fan products such as shaftless rotating bodies, such as shaftless fan blades, iron shells and the like is solved.
Description
Technical Field
The invention relates to the technical field of fan blade dynamic balance detection, in particular to a design method and a structure of an external support type clamping jaw for a dynamic balance test of a shaftless rotator. .
Background
The fan is a conventional facility for reducing the temperature of equipment and the ambient temperature in industry and life. Through the simple rotary motion of the blades, air convection is formed in local areas, so that hot air is dissipated, and the purpose of cooling is achieved.
The direct current fan belongs to a rotary product from the mechanical motion angle, and can also be called a rotary body, and ideally, the rotary product has uniform mass distribution, so that the pressure generated by the rotary fan on a bearing is the same regardless of whether the rotary fan rotates or not. However, in practice, it is difficult to control the factors due to unevenness of material or defects of a mold, and errors in processing and assembling, etc., so that the mass distribution thereof with respect to the axis is not uniform, thereby generating a centrifugal force. This unbalanced centrifugal force acts on the bearings, which generates noise, accelerates product wear, and further severely affects product performance and life. In the production and manufacture of such products, balance testing and correction thereof are based on this application.
When carrying out the dynamic balance test to the rotor of fan, insert the axle center of rotor to the one end of chuck, press from both sides tight rotor to put into the dynamic balancing appearance to holder clamping jaw body, can make pivot, chuck and rotor rotate, carry out the dynamic balance test, after the test is accomplished, can relax the rotor, let the operator take out the rotor and carry out the balance correction. For the fan blade without the axis (iron shell rotor, die casting before entering the axis, the unbalance amount of the fan blade needs to be tested by a balancing instrument and is carried out according to the unbalance amount), the design structure of the main shaft of the clamping jaw at present does not support the clamping and fixing rotation mode of the fan blade (rotor) without the axis.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a design method and a structure of an externally-supported clamping jaw for a dynamic balance test of a shaftless rotator.
The invention adopts the following technical scheme: the design method of the externally-supported clamping jaw for the dynamic balance test of the shaftless rotator comprises the steps that a clamping jaw of a dynamic balance test machine fastens a tensioning sleeve at the end part of a main shaft and an inner hole of the tested shaftless rotator into a whole through external tension force, after the main shaft moves, the internal taper of the tensioning sleeve is in taper fit with the end part of a collet chuck, so that the tensioning sleeve is outwards unfolded through the size fit of a conical surface in the moving process of the main shaft, the external diameter of the circular size originally matched with the inner hole of the tested shaftless rotator in a sliding mode is increased, and the inner hole of the tested shaftless rotator is tightly matched with the outer ring of the tensioning sleeve at the end part of the main shaft.
The external-supporting type clamping jaw structure for the dynamic balance test of the axis-free rotating body comprises a main shaft, a spring, a bearing seat, a tensioning sleeve, a collet and a bearing, wherein the upper end and the lower end in the bearing seat are fixedly provided with the bearing, a shaft sleeve is lined between the outer rings of the bearing, one end of the bearing seat is fixedly provided with a bearing cover in a threaded manner, one end of the main shaft penetrates through the inner ring of the bearing and a hole in the bearing cover, the end part of the main shaft is fixedly provided with a stop block, the collet in a cylinder shape is sleeved outside the main shaft, the main shaft between the stop block and the end part of the collet is sleeved with the spring, two ends of the spring respectively abut against one surface of the stop block and the top end part of one end of the collet, the collet in the cylinder shape is sleeved outside the main shaft, and a belt pulley is fixedly arranged at the position, close to the end, of the collet; the other end of the main shaft fixedly connects the hollow and round-table-shaped tensioning sleeve into a whole through a screw, and the outer edge of the other end of the collet chuck is modeled with the hollow of the round-table-shaped tensioning sleeve and is positioned between the other end of the main shaft and the hollow of the tensioning sleeve; through the elasticity of the spring, the outer wall of the main shaft and the inner wall of the collet chuck generate relative movement, the internal taper of the tensioning sleeve is in taper fit with the end part of the collet chuck, the tensioning sleeve is expanded outwards through the size fit of the conical surface, the outer diameter of the circular size originally matched with the inner hole of the measured shaftless rotating body H in a sliding manner is increased, and the inner hole of the measured shaftless rotating body H is in tight fit with the outer ring of the tensioning sleeve at the end part of the main shaft 1.
The outer edge of the hollow tensioning sleeve is in a truncated cone shape with a small top and a large bottom, grooves are uniformly distributed in the bottom of the tensioning sleeve from bottom to top, the middle of the outer edge of the tensioning sleeve is provided with a step parallel to the axis of the spindle, and the inner wall of the tensioning sleeve is also in a truncated cone shape with a small top and a large bottom.
The collet chuck is hollow, one end of the collet chuck penetrates through the main shaft and abuts against one end of a spring sleeved on the main shaft, the outer wall of the other end of the collet chuck is in a truncated cone shape with a small upper part and a big lower part, the outer wall of the collet chuck is in a shape similar to the inner wall of the tensioning sleeve, and the collet chuck is located between the inner wall of the tensioning sleeve and the main shaft.
And a boss which covers the other end of the bearing seat is fixedly arranged in the middle of the outer edge of the collet.
And a limiting shaft shoulder corresponding to the step in the collet is arranged in the middle of the main shaft.
According to the invention, a reverse thinking is adopted, and after the main shaft moves, the internal taper of the tensioning sleeve is matched with the taper of the end part of the collet chuck, so that the tensioning sleeve is outwards expanded through the size matching of the conical surfaces in the moving process of the main shaft, the test problem of fan products such as shaftless rotating bodies, such as shaftless fan blades, iron shells and the like is solved, the tensioning sleeve is independently designed, the tensioning sleeve with various sizes and specifications can be used for unifying the clamping jaws matched with the main shaft, and the compatibility and the universality of the clamping jaws are improved; the design of the high-precision rotating body can more accurately measure the unbalance value of the material, and the value can be accurate to 0.01 mg.
Description of the drawings:
FIG. 1 is a front view of the present invention;
FIG. 2 is a perspective view of the present invention:
FIG. 3 is an exploded perspective view of the present invention;
FIG. 4 is a perspective exploded front view of the present invention;
fig. 5 is a cross-sectional view of the present invention.
The specific implementation mode is as follows:
the design method of the externally-supported clamping jaw for the dynamic balance test of the shaftless rotator comprises the steps that a clamping jaw of a dynamic balance test machine fastens a tensioning sleeve at the end part of a main shaft and an inner hole of the tested shaftless rotator into a whole through external tension force, after the main shaft moves, the internal taper of the tensioning sleeve is in taper fit with the end part of a collet chuck, so that the tensioning sleeve is outwards unfolded through the size fit of a conical surface in the moving process of the main shaft, the external diameter of the circular size originally matched with the inner hole of the tested shaftless rotator in a sliding mode is increased, and the inner hole of the tested shaftless rotator is tightly matched with the outer ring of the tensioning sleeve at the end part of the main shaft.
Referring to the attached drawings 1-5, the externally-supported clamping jaw structure for the dynamic balance test of the shaftless rotating body comprises a main shaft 1, a spring 2, a bearing seat 3, a tensioning sleeve 5, a collet chuck 6 and a bearing 7, wherein the bearing 7 is fixedly arranged at the upper end and the lower end in the bearing seat 3, a shaft sleeve 71 is lined between the outer rings of the bearing 7, a bearing cover 31 is fixedly screwed at one end of the bearing seat 3, one end of the main shaft 1 penetrates through the inner ring of the bearing 7 and a hole in the bearing cover 31, a stop block 11 is fixedly arranged at the end part of the main shaft, the collet chuck 6 in a cylinder shape is sleeved outside the main shaft 1, the main shaft 1 between the stop block 11 and the end part of the collet chuck 6 is sleeved with the spring 2, two ends of the spring 2 respectively abut against one surface of the stop block 11 and the top end part of one end of the collet chuck 6, the collet chuck 6 in a cylinder shape is sleeved outside the main shaft 1, and a belt pulley 12 is fixedly arranged at the position, which is close to the end part of the collet chuck 6; the other end of the main shaft 1 fixedly connects the hollow and truncated cone-shaped tensioning sleeve 5 into a whole through a screw 13, and the outer edge of the other end of the collet 6 and the hollow copy of the truncated cone-shaped tensioning sleeve 5 are positioned between the other end of the main shaft 1 and the hollow of the tensioning sleeve 5; through the elasticity of the spring 2, the outer wall of the main shaft 1 and the inner wall of the collet chuck 6 generate relative movement, the internal taper of the tensioning sleeve 5 is in taper fit with the end part of the collet chuck 6, and the tensioning sleeve 5 is outwards unfolded through the size fit of the conical surface, so that the circular size outer diameter which is originally matched with the inner hole of the measured shaftless rotating body H in a sliding manner is increased, and the tight fit of the inner hole of the measured shaftless rotating body H and the outer ring of the tensioning sleeve 5 at the end part of the main shaft 1 is formed.
The outer edge 51 of the hollow tensioning sleeve 5 is in a truncated cone shape with a small top and a large bottom, the bottom of the tensioning sleeve 5 is uniformly provided with grooves 52 from bottom to top, the middle part of the outer edge 51 of the tensioning sleeve 5 is provided with a step 53 parallel to the axis of the spindle 1, and the inner wall 54 of the tensioning sleeve 5 is also in a truncated cone shape with a small top and a large bottom.
The collet chuck 6 is hollow, one end of the collet chuck penetrates through the main shaft 1 and abuts against one end of the spring 2 sleeved on the main shaft 1, the outer wall 61 of the other end of the collet chuck is in a circular truncated cone shape with a small upper part and a large lower part, is in a shape similar to the inner wall 54 of the tensioning sleeve 5, and is located between the inner wall 54 of the tensioning sleeve 5 and the main shaft 1.
The middle part of the outer edge of the collet 6 is fixedly provided with a boss 62 which covers the other end of the bearing seat 3.
The middle part of the main shaft 1 is provided with a limit shaft shoulder 14 corresponding to the step in the collet chuck 6.
When the invention is applied, the screw 13 at the other end of the main shaft 1 is unscrewed, a fan product to be detected, such as a shaftless rotating body H, such as a shaftless fan blade, an iron shell and the like, is covered at the end part of the tensioning sleeve 5, and then the screw 13 at the other end of the main shaft 1 passes through the central hole of the shaftless rotating body H and is screwed and fixed on the tensioning sleeve 5 at the other end of the main shaft 1; at this time, two ends of the spring 2 respectively abut against one surface of the stop block 11 and the top end of one end of the collet chuck 6, the main shaft 1 generates downward tension, the collet chuck 6 generates upward thrust relative to the main shaft 1, so that the outer wall of the main shaft 1 and the inner wall of the collet chuck 6 generate relative movement, the taper of the inner wall 54 of the tensioning sleeve 5 is in taper fit with the outer wall 61 of the end of the collet chuck 6, and the tensioning sleeve 5 is expanded outwards through the size fit of the conical surface, so that the step 53 which is originally in sliding fit with the inner hole of the measured shaftless rotator H and is parallel to the axis of the main shaft 1 is increased in size and outer diameter, the inner hole of the measured shaftless rotator H is in tight fit with the outer ring of the tensioning sleeve 5 at the end of the main shaft 1, and the test problem of fan products such as shaftless fan blades, iron shells and the like of the shaftless rotator H is solved.
Claims (6)
1. The design method of the externally-supported clamping jaw for the dynamic balance test of the axis-free rotator is characterized in that: the clamping jaw of dynamic balance test machine passes through outside tensile force, with the tight cover that rises of main shaft tip and the hole fastening of surveyed shaftless rotator as an organic whole, after removing through the main shaft, the inside tapering of the tight cover that rises and collet chuck tip taper fit for the main shaft removes the in-process, the tight cover that rises is strutted outward through conical surface size fit, make originally with the increase of the circular size external diameter of being surveyed shaftless rotator hole sliding fit, form the tight cover outer loop tight fit that rises of the hole of being surveyed shaftless rotator and main shaft tip.
2. The externally-supported clamping jaw structure for the dynamic balance test of the axis-free rotator comprises a main shaft, a spring, a bearing seat, a tensioning sleeve, a collet and a bearing, wherein the bearing is fixedly arranged at the upper end and the lower end in the bearing seat, a shaft sleeve is lined between the outer rings of the bearings, a bearing cover is fixedly arranged at one end of the bearing seat, one end of the main shaft penetrates through the inner ring of the bearing and a hole in the bearing cover, and a stop block is fixedly arranged at the end part of the main shaft, and the externally-supported clamping jaw structure is characterized in that: the main shaft is sleeved with a collet chuck in a cylinder shape, a spring is sleeved on the main shaft between the stop block and the end part of the collet chuck, two ends of the spring respectively support against one surface of the stop block and the top end part of one end of the collet chuck, the collet chuck in the cylinder shape is sleeved outside the main shaft, and a belt pulley is fixedly arranged at the position, close to the end part, of the collet chuck; the other end of the main shaft fixedly connects the hollow and round-table-shaped tensioning sleeve into a whole through a screw, and the outer edge of the other end of the collet chuck is modeled with the hollow of the round-table-shaped tensioning sleeve and is positioned between the other end of the main shaft and the hollow of the tensioning sleeve; through the elasticity of the spring, the outer wall of the main shaft and the inner wall of the collet chuck generate relative movement, the internal taper of the tensioning sleeve is in taper fit with the end part of the collet chuck, the tensioning sleeve is expanded outwards through the size fit of the conical surface, the outer diameter of the circular size originally matched with the inner hole of the measured shaftless rotating body H in a sliding manner is increased, and the inner hole of the measured shaftless rotating body H is in tight fit with the outer ring of the tensioning sleeve at the end part of the main shaft 1.
3. The externally-supported jaw structure for the dynamic balance test of the shaftless rotator according to claim 2, wherein: the outer edge of the hollow tensioning sleeve is in a truncated cone shape with a small top and a large bottom, grooves are uniformly distributed in the bottom of the tensioning sleeve from bottom to top, the middle of the outer edge of the tensioning sleeve is provided with a step parallel to the axis of the spindle, and the inner wall of the tensioning sleeve is also in a truncated cone shape with a small top and a large bottom.
4. The externally-supported jaw structure for the dynamic balance test of the shaftless rotator according to claim 2, wherein: the collet chuck is hollow, one end of the collet chuck penetrates through the main shaft and abuts against one end of a spring sleeved on the main shaft, the outer wall of the other end of the collet chuck is in a truncated cone shape with a small upper part and a big lower part, the outer wall of the collet chuck is in a shape similar to the inner wall of the tensioning sleeve, and the collet chuck is located between the inner wall of the tensioning sleeve and the main shaft.
5. The externally-supported jaw structure for the dynamic balance test of the shaftless rotator according to claim 2, wherein: and a boss which covers the other end of the bearing seat is fixedly arranged in the middle of the outer edge of the collet.
6. The externally-supported jaw structure for the dynamic balance test of the shaftless rotator according to claim 2, wherein: and a limiting shaft shoulder corresponding to the step in the collet is arranged in the middle of the main shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111292762.XA CN114184318A (en) | 2021-11-03 | 2021-11-03 | Design method and structure of externally-supported clamping jaw for dynamic balance test of axis-free rotating body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111292762.XA CN114184318A (en) | 2021-11-03 | 2021-11-03 | Design method and structure of externally-supported clamping jaw for dynamic balance test of axis-free rotating body |
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| Publication Number | Publication Date |
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| CN114184318A true CN114184318A (en) | 2022-03-15 |
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| CN202111292762.XA Pending CN114184318A (en) | 2021-11-03 | 2021-11-03 | Design method and structure of externally-supported clamping jaw for dynamic balance test of axis-free rotating body |
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102589805A (en) * | 2012-01-19 | 2012-07-18 | 杭州集智机电设备制造有限公司 | Automatic chuck structure for measuring unbalanced amount of impellers |
| CN203323963U (en) * | 2013-06-21 | 2013-12-04 | 上海申联试验机厂有限公司 | Centering fixture |
| CN106197850A (en) * | 2016-08-09 | 2016-12-07 | 杭州集智机电股份有限公司 | Automatic clamping device for flexible flywheel dynamic balancing measurement |
| CN206440425U (en) * | 2016-12-30 | 2017-08-25 | 綦江齿轮传动有限公司 | For detecting the dynamically balanced fixture of planet carrier component |
| CN107300447A (en) * | 2017-08-21 | 2017-10-27 | 东莞市卓茂仪器有限公司 | A kind of flabellum single-side dynamic balance machine |
| CN206710022U (en) * | 2016-12-27 | 2017-12-05 | 志研自动化设备湖北有限公司 | Automobile tire dynamic balancing measurement industry main shaft |
| CN206804223U (en) * | 2017-06-07 | 2017-12-26 | 东莞市卓茂仪器有限公司 | A kind of dynamic balance instrument holder |
| CN206945220U (en) * | 2017-07-19 | 2018-01-30 | 东莞市卓茂仪器有限公司 | A kind of dynamic balance measuring instrument using spring needle |
| CN209326875U (en) * | 2018-12-27 | 2019-08-30 | 安徽安凯福田曙光车桥有限公司 | A kind of dynamic balance detecting device of axle hub brake drum assembly component |
| CN110926695A (en) * | 2019-12-20 | 2020-03-27 | 杭州集智机电股份有限公司 | Automatic centering and pressing device for balancing machine with conical inner hole rotor |
| JP2021085845A (en) * | 2019-11-29 | 2021-06-03 | 株式会社長浜製作所 | Collet for dynamic balancing test machine and dynamic balancing test machine |
-
2021
- 2021-11-03 CN CN202111292762.XA patent/CN114184318A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102589805A (en) * | 2012-01-19 | 2012-07-18 | 杭州集智机电设备制造有限公司 | Automatic chuck structure for measuring unbalanced amount of impellers |
| CN203323963U (en) * | 2013-06-21 | 2013-12-04 | 上海申联试验机厂有限公司 | Centering fixture |
| CN106197850A (en) * | 2016-08-09 | 2016-12-07 | 杭州集智机电股份有限公司 | Automatic clamping device for flexible flywheel dynamic balancing measurement |
| CN206710022U (en) * | 2016-12-27 | 2017-12-05 | 志研自动化设备湖北有限公司 | Automobile tire dynamic balancing measurement industry main shaft |
| CN206440425U (en) * | 2016-12-30 | 2017-08-25 | 綦江齿轮传动有限公司 | For detecting the dynamically balanced fixture of planet carrier component |
| CN206804223U (en) * | 2017-06-07 | 2017-12-26 | 东莞市卓茂仪器有限公司 | A kind of dynamic balance instrument holder |
| CN206945220U (en) * | 2017-07-19 | 2018-01-30 | 东莞市卓茂仪器有限公司 | A kind of dynamic balance measuring instrument using spring needle |
| CN107300447A (en) * | 2017-08-21 | 2017-10-27 | 东莞市卓茂仪器有限公司 | A kind of flabellum single-side dynamic balance machine |
| CN209326875U (en) * | 2018-12-27 | 2019-08-30 | 安徽安凯福田曙光车桥有限公司 | A kind of dynamic balance detecting device of axle hub brake drum assembly component |
| JP2021085845A (en) * | 2019-11-29 | 2021-06-03 | 株式会社長浜製作所 | Collet for dynamic balancing test machine and dynamic balancing test machine |
| CN110926695A (en) * | 2019-12-20 | 2020-03-27 | 杭州集智机电股份有限公司 | Automatic centering and pressing device for balancing machine with conical inner hole rotor |
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Address after: Room 401, Building 2, No. 21, Chuangxing Middle Road, Gaobu, Gaobu Town, Dongguan City, Guangdong 523000 Applicant after: ZENITH INSTRUMENTS CO.,LTD. Address before: 523000 Lianshang Manufacturing Industrial Park, Chuangxin Road, Diyong village, Gaopo Town, Dongguan City, Guangdong Province Applicant before: ZENITH INSTRUMENTS CO.,LTD. |
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