CN204944749U - Self-locking propeller static balancing instrument - Google Patents
Self-locking propeller static balancing instrument Download PDFInfo
- Publication number
- CN204944749U CN204944749U CN201520769993.9U CN201520769993U CN204944749U CN 204944749 U CN204944749 U CN 204944749U CN 201520769993 U CN201520769993 U CN 201520769993U CN 204944749 U CN204944749 U CN 204944749U
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- rotating shaft
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- screw thread
- described rotating
- balancing
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Abstract
The utility model relates to a kind of self-locking propeller static balancing instrument, the joint pin that it comprises two side plates vertically be arranged in parallel and they is fixedly connected with, rotating shaft is provided with between two side plates, the two ends of rotating shaft are connected with two side plates respectively, rotating shaft is provided with the balancing head of symmetrically structure, balancing head is provided with screw thread balance stem and axis hole, balancing head is contained in rotating shaft by shaft hole sleeve and also can rotates around it, screw thread balance stem runs through balancing head, the two ends of balancing head are stretched out at its two ends respectively and extension elongation is identical, and be respectively equipped with balance nut, each balance nut is threaded with screw thread balance stem and can moves along screw thread balance stem, balancing head is provided with the post that is threaded for connecting self-locking screw propeller away from one end of rotating shaft, compared with prior art, the utility model assembling product is simple, production cost is low, and after being connected with the post that is threaded by screw propeller, can carry out static equilibrium inspection to conventional propeller or self-locking screw propeller, use convenient, the scope of application is wider.
Description
Technical field
The utility model relates to propeller processing field, particularly relates to a kind of propeller static balancing instrument.
Background technology
The working speed of usual screw propeller is general all higher, and in order to ensure that it can normally work, screw propeller is very high to dynamically balanced requirement, and static equilibrium is dynamically balanced basic condition.After screw propeller does paddle balance, the vibrations that can reduce in High Rotation Speed made aircraft flight more steady, reduced high-frequency vibration, because of the noise of imbalance generation during reduction screw propeller High Rotation Speed.
If two of screw propeller blades from the quality of material to blade angle, profile is identical, realize dynamic equilibrium should follow a well mapped-out plan, problem is, this basic condition not can possess easily, what we can accomplish is make the section at two any places of blade symmetrical as far as possible, realizes static equilibrium as possible.
Propeller statical equilibrium degree how, checks by various propeller balance instrument.Desirable static equilibrium state is: no matter screw propeller is in pricing system angle all can be static voluntarily, if position when a certain blade is static always " sinking ", namely should find out the difference of this blade and another blade, and carry out revising, trying, until qualified.
Existing paddle balance device comprises Helicopter Main paddle balance device and common paddle balance device on the market, but the threaded hole arranged due to self-locking oar center does not run through screw propeller, so that screw propeller self-locking is fixed, make it as conventional propeller, cannot carry out static equilibrium inspection on balance stem, therefore existing paddle balance device all cannot be used for the static equilibrium checking self-locking oar.
Utility model content
Technical problem to be solved in the utility model be to provide a kind of production cost low, assemble self-locking propeller static balancing instrument simple, easy to use.
The technical scheme that the utility model solves the problems of the technologies described above is as follows:
A kind of self-locking propeller static balancing instrument, the joint pin that it comprises two side plates vertically be arranged in parallel and they is fixed together, described joint pin is between two described side plates, and it is vertical with them, rotating shaft is provided with between two described side plates, the two ends of described rotating shaft are connected with two described side plates respectively, described rotating shaft is provided with the balancing head of symmetrically structure, the axis hole that described balancing head is provided with screw thread balance stem and matches with described rotating shaft, described balancing head is contained in described rotating shaft by described shaft hole sleeve and also can rotates around it, described screw thread balance stem runs through described balancing head, the two ends of described balancing head are stretched out at its two ends respectively and the length of stretching out is identical, described screw thread balance stem two ends are respectively equipped with balance nut, described balance nut is equipped with the tapped through hole matched with described screw thread balance stem, each described balance nut to be threaded with described screw thread balance stem by tapped through hole and can to move along described screw thread balance stem, described screw thread balance stem is vertical with described rotating shaft, described balancing head is provided with the post that is threaded for connecting self-locking screw propeller away from one end of described rotating shaft, the described post that is threaded is vertical with described rotating shaft, and it is vertical with described screw thread balance stem.
Compared with prior art, the beneficial effects of the utility model are:
The utility model assembling product is simple, production cost is low, as long as first by regulating the balance nut at screw thread balance stem two ends, make screw thread balance stem maintenance level, eliminate static balancing instrument self unbalanced factor to the impact of result, again self-locking screw propeller is connected with the male screw that is threaded, just can carry out static equilibrium inspection to self-locking screw propeller, very easy to use, in addition, by nut, common screw propeller can also be fixed on group is threaded on post, carry out static equilibrium inspection to conventional propeller, the scope of application is wider.
On the basis of technique scheme, the utility model can also do following improvement.
As a kind of preferred implementation of the present utility model, described rotating shaft smooth outer surface, described axis hole inside surface is smooth.
Adopt the beneficial effect of above-mentioned preferred version to be: to reduce the frictional resistance between rotating shaft and balancing head upper shaft hole as far as possible, balancing head is rotated in rotating shaft and is more prone to, such screw propeller when carrying out static equilibrium inspection result can more precisely, more quick.
As another kind of preferred implementation of the present utility model, the top of two described side plates is respectively equipped with the rotating shaft mounting hole matched with described rotating shaft, described rotating shaft mounting hole inside surface is smooth, two described rotating shaft mounting holes are stretched at the two ends of described rotating shaft respectively, and rotate in the described rotating shaft mounting hole of correspondence.
Adopt the beneficial effect of above-mentioned preferred version to be: while balancing head rotates in rotating shaft, rotating shaft also can rotate, reduce frictional resistance, such screw propeller when carrying out static equilibrium and checking result can more precisely, more quick.
As another kind of preferred implementation of the present utility model, be also provided with the magnet piece matched with described rotating shaft in each described rotating shaft mounting hole, described rotating shaft is made up of magnetic material.
The beneficial effect of above-mentioned preferred version is adopted to be: to use the frictional resistance that maglev mode reduces on rotating shaft and side plate between rotating shaft mounting hole as far as possible, make rotating shaft rotate be more prone to, such screw propeller carry out static equilibrium check time result can more precisely, more quick.
As another kind of preferred implementation of the present utility model, described magnet piece is made up of NdFeB material, and described rotating shaft is made up of stainless steel material, and described balancing head is made up of aluminum alloy materials.
The beneficial effect of above-mentioned preferred version is adopted to be: the magnet that NdFeB material is made is alnico magnets, and magnetic is stronger; Rotating shaft is made up of stainless steel material, not only durable in use, manufactures simple and convenient, and maglev better effects if; Balancing head is made up of aluminum alloy materials, and material source is extensive, manufactures simple.
As another kind of preferred implementation of the present utility model, the longitudinal section of described balancing head is " convex " font, the cross-sectional area of described balancing head near one end of described rotating shaft is less than the cross-sectional area of the one end away from described rotating shaft, and described screw thread balance stem is positioned at described balancing head one end away from described rotating shaft.
Adopt the beneficial effect of above-mentioned preferred version to be: balancing head designs like this, balance can be better, be more prone to eliminate static balancing instrument self unbalanced factor to the impact of result, make screw propeller when carrying out static equilibrium and checking result can more precisely, more quick.
As another kind of preferred implementation of the present utility model, the shape of two described side plate opposite faces is isosceles triangle.
The beneficial effect of above-mentioned preferred version is adopted to be: side plate is designed to isosceles triangle shape, can material be saved, thus cost-saving, well can ensure again balance and the stability of product self, not easily topple over or rock, the inspection of convenient propeller statical equilibrium.
As another kind of preferred implementation of the present utility model, the quantity of described joint pin is two, and two described joint pins lay respectively at the two ends, bottom of each described side plate.
The beneficial effect of above-mentioned preferred version is adopted to be: joint pin material can be saved, thus cost-saving, well can ensure again balance and the stability of product self, not easily topple over or rock, convenient statically balanced inspection.
As another kind of preferred implementation of the present utility model, the quantity of described joint pin is three, and wherein two described joint pins lay respectively at the two ends, bottom of each described side plate, also has a described joint pin to be positioned at the middle part of each described side plate.
The beneficial effect of above-mentioned preferred version is adopted to be: balance and the stability that better can ensure product self, make it more be not easy to topple over or rock.
Accompanying drawing explanation
Fig. 1 is the structural representation in the utility model product front;
Fig. 2 is the structural representation of the utility model product side;
Fig. 3 is the structural representation of balancing head in the utility model product;
In accompanying drawing, the list of parts representated by each label is as follows:
1, side plate, 2, joint pin, 3, rotating shaft, 4, balancing head, 5, screw thread balance stem, 6, balance nut, 7, be threaded post, 8, axis hole.
Embodiment
Be described principle of the present utility model and feature below in conjunction with accompanying drawing, example, only for explaining the utility model, is not intended to limit scope of the present utility model.
Embodiment
As Fig. 1, Fig. 2, shown in Fig. 3, a kind of self-locking propeller static balancing instrument, the joint pin 2 that it comprises two side plates vertically be arranged in parallel 1 and they is fixed together, described joint pin 2 is between two described side plates 1, and it is vertical with them, the shape of two described side plate 1 opposite faces is isosceles triangle, the quantity of described joint pin 2 is three, two joint pins 2 lay respectively at the two ends, bottom of each described side plate 1, a joint pin 2 is also had to be positioned at the middle part of each described side plate 1 (as long as be positioned on axis, preferably center is on the lower side),
Rotating shaft 3 is provided with between two described side plates 1, described rotating shaft 3 is made up of magnetic material, such as stainless steel, iron etc., the top of two described side plates 1 is respectively equipped with the rotating shaft mounting hole matched with described rotating shaft 3, described rotating shaft 3 smooth outer surface, described rotating shaft mounting hole inside surface is smooth, two described rotating shaft mounting holes are stretched at the two ends of described rotating shaft 3 respectively, and rotate in the described rotating shaft mounting hole of correspondence, also be provided with the magnet piece matched with described rotating shaft 3 in each described rotating shaft mounting hole, magnet piece is preferably made up of NdFeB material;
Described rotating shaft 3 is provided with the balancing head 4 of symmetrically structure, described balancing head 4 is made up of aluminum alloy materials, the axis hole 8 that described balancing head 4 is provided with screw thread balance stem 5 and matches with described rotating shaft 3, the longitudinal section of described balancing head 4 is " convex " font, the cross-sectional area of described balancing head 4 near one end of described rotating shaft 3 is less than the cross-sectional area of the one end away from described rotating shaft 3, and described screw thread balance stem 5 is positioned at described balancing head 4 one end away from described rotating shaft 3;
Described axis hole 8 inside surface is smooth, described balancing head 4 is sleeved in described rotating shaft 3 by described axis hole 8 and also can rotates around it, described screw thread balance stem 5 runs through described balancing head 4, the two ends of described balancing head 4 are stretched out at its two ends respectively and the length of stretching out is identical, described screw thread balance stem 5 two ends are respectively equipped with balance nut 6, described balance nut 6 is equipped with the tapped through hole matched with described screw thread balance stem 5, each described balance nut 6 to be threaded with described screw thread balance stem 5 by tapped through hole and can to move along described screw thread balance stem 5, described screw thread balance stem 5 is vertical with described rotating shaft 3, described balancing head 4 is provided with the post 7 that is threaded for connecting self-locking screw propeller away from one end of described rotating shaft 3, the described post 7 that is threaded is vertical with described rotating shaft 3, and it is vertical with described screw thread balance stem 5.
The utility model product in use, as long as first by regulating the balance nut 6 at screw thread balance stem 5 two ends, make screw thread balance stem 5 maintenance level, eliminate static balancing instrument self unbalanced factor to the impact of result, again self-locking screw propeller is threaded with the post 7 that is threaded, just can carry out static equilibrium inspection to self-locking screw propeller, if position when a certain blade is static is " sinking " always, namely the difference of this blade and another blade should be found out, and revise, try again, until qualified, very easy to use, in addition, can also to be fixed on by common screw propeller by nut is threaded on post 7, static equilibrium inspection is carried out to conventional propeller, make application range of products wider.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (9)
1. a self-locking propeller static balancing instrument, it is characterized in that, the joint pin (2) that it comprises two side plates vertically be arranged in parallel (1) and they is fixed together, described joint pin (2) is positioned between two described side plates (1), and it is vertical with them, rotating shaft (3) is provided with between two described side plates (1), the two ends of described rotating shaft (3) are connected with two described side plates (1) respectively, described rotating shaft (3) is provided with the balancing head (4) of symmetrically structure, the axis hole (8) that described balancing head (4) is provided with screw thread balance stem (5) and matches with described rotating shaft (3), described balancing head (4) is sleeved on described rotating shaft (3) by described axis hole (8) and above also can rotates around it, described screw thread balance stem (5) runs through described balancing head (4), the two ends of described balancing head (4) are stretched out at its two ends respectively and the length of stretching out is identical, described screw thread balance stem (5) two ends are respectively equipped with balance nut (6), described balance nut (6) is equipped with the tapped through hole matched with described screw thread balance stem (5), each described balance nut (6) is threaded with described screw thread balance stem (5) by tapped through hole also can be mobile along described screw thread balance stem (5), described screw thread balance stem (5) is vertical with described rotating shaft (3), described balancing head (4) is provided with the post that is threaded (7) for connecting self-locking screw propeller away from one end of described rotating shaft (3), the described post that is threaded (7) is vertical with described rotating shaft (3), and it is vertical with described screw thread balance stem (5).
2. self-locking propeller static balancing instrument according to claim 1, is characterized in that, described rotating shaft (3) smooth outer surface, and described axis hole (8) inside surface is smooth.
3. self-locking propeller static balancing instrument according to claim 2, it is characterized in that, the top of two described side plates (1) is respectively equipped with the rotating shaft mounting hole matched with described rotating shaft (3), described rotating shaft mounting hole inside surface is smooth, two described rotating shaft mounting holes are stretched at the two ends of described rotating shaft (3) respectively, and rotate in the described rotating shaft mounting hole of correspondence.
4. self-locking propeller static balancing instrument according to claim 3, is characterized in that, be also provided with the magnet piece matched with described rotating shaft (3) in each described rotating shaft mounting hole, described rotating shaft (3) is made up of magnetic material.
5. self-locking propeller static balancing instrument according to claim 4, is characterized in that, described magnet piece is made up of NdFeB material, and described rotating shaft (3) is made up of stainless steel material, and described balancing head (4) is made up of aluminum alloy materials.
6. self-locking propeller static balancing instrument according to claim 1, it is characterized in that, the longitudinal section of described balancing head (4) is " convex " font, the cross-sectional area of described balancing head (4) near one end of described rotating shaft (3) is less than the cross-sectional area of the one end away from described rotating shaft (3), and described screw thread balance stem (5) is positioned at described balancing head (4) one end away from described rotating shaft (3).
7. the self-locking propeller static balancing instrument according to any one of claim 1-6, is characterized in that, the shape of two described side plate (1) opposite faces is isosceles triangle.
8. self-locking propeller static balancing instrument according to claim 7, is characterized in that, the quantity of described joint pin (2) is two, and two described joint pins (2) lay respectively at the two ends, bottom of each described side plate (1).
9. self-locking propeller static balancing instrument according to claim 7, it is characterized in that, the quantity of described joint pin (2) is three, wherein two described joint pins (2) lay respectively at the two ends, bottom of each described side plate (1), also have a described joint pin (2) to be positioned at the middle part of each described side plate (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520769993.9U CN204944749U (en) | 2015-09-30 | 2015-09-30 | Self-locking propeller static balancing instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520769993.9U CN204944749U (en) | 2015-09-30 | 2015-09-30 | Self-locking propeller static balancing instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204944749U true CN204944749U (en) | 2016-01-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520769993.9U Expired - Fee Related CN204944749U (en) | 2015-09-30 | 2015-09-30 | Self-locking propeller static balancing instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204944749U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105486455A (en) * | 2016-01-11 | 2016-04-13 | 深圳市有棵树科技股份有限公司 | Propeller dynamic balance tester |
| CN105910759A (en) * | 2016-05-19 | 2016-08-31 | 北京航空航天大学 | Biaxial flexible static balance instrument |
| CN106813832A (en) * | 2017-03-06 | 2017-06-09 | 武汉飞流智能技术有限公司 | A kind of unmanned plane propeller balance device for quick testing and method |
| CN107700628A (en) * | 2017-06-14 | 2018-02-16 | 广西南宁尼科安全技术服务有限公司 | A kind of efficient water conservancy equipment |
| CN111982403A (en) * | 2020-06-29 | 2020-11-24 | 安正华 | High-precision hydraulic static balancing instrument for ship propeller |
-
2015
- 2015-09-30 CN CN201520769993.9U patent/CN204944749U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105486455A (en) * | 2016-01-11 | 2016-04-13 | 深圳市有棵树科技股份有限公司 | Propeller dynamic balance tester |
| CN105486455B (en) * | 2016-01-11 | 2017-11-07 | 深圳市有棵树科技股份有限公司 | A kind of propeller dynamic balance measuring instrument |
| CN105910759A (en) * | 2016-05-19 | 2016-08-31 | 北京航空航天大学 | Biaxial flexible static balance instrument |
| CN105910759B (en) * | 2016-05-19 | 2018-04-13 | 北京航空航天大学 | Shaft flexible static balancing instrument |
| CN106813832A (en) * | 2017-03-06 | 2017-06-09 | 武汉飞流智能技术有限公司 | A kind of unmanned plane propeller balance device for quick testing and method |
| CN107700628A (en) * | 2017-06-14 | 2018-02-16 | 广西南宁尼科安全技术服务有限公司 | A kind of efficient water conservancy equipment |
| CN111982403A (en) * | 2020-06-29 | 2020-11-24 | 安正华 | High-precision hydraulic static balancing instrument for ship propeller |
| CN111982403B (en) * | 2020-06-29 | 2022-11-04 | 合肥倍豪海洋装备技术有限公司 | High-precision hydraulic static balancing instrument for ship propeller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20160106 Termination date: 20170930 |