CN217637787U - Propeller static balance test bed - Google Patents
Propeller static balance test bed Download PDFInfo
- Publication number
- CN217637787U CN217637787U CN202221190541.1U CN202221190541U CN217637787U CN 217637787 U CN217637787 U CN 217637787U CN 202221190541 U CN202221190541 U CN 202221190541U CN 217637787 U CN217637787 U CN 217637787U
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- China
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- guide rail
- test bed
- static balance
- balance test
- propeller
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Abstract
The utility model provides a propeller static balance test bed, which comprises a bottom plate, wherein two groups of bases are symmetrically arranged on the bottom plate, a bracket is fixed at the top of each base, top ends of two brackets positioned at the same side are supported and fixed with a top plate, and the top end of the top plate is supported with a guide rail support through two groups of height adjusting mechanisms; a guide rail limiting groove for placing a guide rail is processed at the top end of the guide rail support; a locking structure is arranged between the guide rail and the guide rail support; the top end of the guide rail is supported with a balance shaft. The test bed can be used for detecting the static balance performance of the propeller of the airplane.
Description
Technical Field
The utility model relates to an aircraft screw performance detects technical field, concretely relates to screw static balance test platform.
Background
After the airplane propeller is overhauled or repaired, static balance detection needs to be carried out again so as to ensure the safety and reliability of the propeller in the subsequent operation process. At present, no test bed special for detecting the static balance of the propeller of the airplane exists.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming prior art not enough, providing screw static balance test bench, this test bench can be used for the static balance performance detection of aircraft screw.
In order to realize the technical characteristics, the purpose of the utility model is realized as follows: the propeller static balance test bed comprises a bottom plate, wherein two groups of bases are symmetrically arranged on the bottom plate, supports are fixed at the tops of the bases, top plates are fixedly supported at the top ends of the two supports positioned on the same side, and guide rail supports are supported at the top ends of the top plates through two groups of height adjusting mechanisms; a guide rail limiting groove for placing a guide rail is processed at the top end of the guide rail support; a locking structure is arranged between the guide rail and the guide rail support; the top end of the guide rail is supported with a balance shaft.
The bottom plate is fixedly connected with the installation foundation through a plurality of foundation expansion bolts.
An inclined supporting rod is fixed between the outer side wall of the bracket and the base; the base is fixedly connected with the bottom plate through a plurality of bolts.
The support is made of channel steel materials in a cutting mode.
The height adjusting mechanism comprises an adjusting screw fixed at the bottom end of the guide rail support through a first nut, the other end of the adjusting screw is supported on a nut seat, and the nut seat is fixed at the top end of the top plate; the bottom end of the adjusting screw rod is positioned below the top plate and is locked and fixed through a second nut.
The guide rail limiting groove is of a V-shaped groove structure.
The locking structure comprises a pressing ring, the pressing ring is sleeved at the end parts of the guide rail and the guide rail support, a locking bolt is installed at the lower part of the pressing ring, and the tail end of the locking bolt is tightly matched with the bottom end of the guide rail support.
The guide rail is of a cylindrical structure.
The utility model discloses there is following beneficial effect:
1. the test bed can be used for detecting the static balance performance of the airplane propeller.
2. Reliable fixing of the whole bottom plate is guaranteed through the foundation expansion bolt, and stability of the whole test bed is further guaranteed.
3. The height adjusting mechanism can be used for adjusting the levelness of the two guide rails, and further the precision of subsequent static balance detection is guaranteed.
4. The guide rail can be locked and fixed on the top of the guide rail support through the locking structure. And can be used to limit the supported balance shaft.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a front view of the present invention.
Fig. 2 is a left side view of the present invention.
Fig. 3 is a top view of the present invention.
Fig. 4 is the local structure diagram of the height adjusting mechanism of the present invention.
Fig. 5 is a front view of the utility model in use.
Fig. 6 is a left side view of the utility model in use.
Fig. 7 is a schematic diagram of the balance shaft calibration of the present invention.
Fig. 8 is a schematic view of the checking of the guide rail of the present invention.
In the figure: balance shaft 1, guide rail 2, clamping ring 3, locking bolt 4, guide rail support 5, support 6, inclined support rod 7, base 8, bottom plate 9, bolt 10, top plate 11, nut seat 12, adjusting screw 13, first nut 14, guide rail limiting groove 15, second nut 16, foundation expansion bolt 17 and screw 18.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
Referring to fig. 1-6, the propeller static balance test bed comprises a bottom plate 9, two groups of bases 8 are symmetrically arranged on the bottom plate 9, a support 6 is fixed on the top of each base 8, top ends of the two supports 6 positioned on the same side are fixedly supported by a top plate 11, and the top end of the top plate 11 is supported by a guide rail support 5 through two groups of height adjusting mechanisms; a guide rail limiting groove 15 for placing the guide rail 2 is processed at the top end of the guide rail support 5; a locking structure is arranged between the guide rail 2 and the guide rail support 5; the top end of the guide rail 2 supports a balance shaft 1. The test bed can be used for detecting the static balance performance of the airplane propeller.
Further, the bottom plate 9 is fixedly connected with the installation foundation through a plurality of foundation expansion bolts 17. Reliable fixing of the whole bottom plate 9 is guaranteed by the aid of the foundation expansion bolts 17, and stability of the whole test bed is further guaranteed.
Furthermore, an inclined support rod 7 is fixed between the outer side wall of the bracket 6 and the base 8; the base 8 is fixedly connected with a bottom plate 9 through a plurality of bolts 10. The structural strength and stability of the bracket 6 are enhanced by the diagonal support bar 7.
Further, the bracket 6 is made of channel steel materials through cutting. The structure is simplified by adopting channel steel materials.
Further, the height adjusting mechanism comprises an adjusting screw 13 fixed at the bottom end of the guide rail support 5 through a first nut 14, the other end of the adjusting screw 13 is supported on a nut seat 12, and the nut seat 12 is fixed at the top end of the top plate 11; the bottom end of the adjusting screw 13 is positioned below the top plate 11 and is locked and fixed by a second nut 16. The height adjusting mechanism can be used for adjusting the levelness of the two guide rails 2, and further the precision of subsequent static balance detection is guaranteed.
Further, the guide rail limiting groove 15 is of a V-shaped groove structure. The V-shaped groove structure is adopted to ensure the stable and reliable support of the guide rail 2.
Furthermore, locking structure includes clamping ring 3, and the clamping ring 3 suit is in the end position of guide rail 2 and guide rail support 5, and locking bolt 4 is installed to the lower part of clamping ring 3, and locking bolt 4's end is in tight fit with the bottom top of guide rail support 5. The guide rail 2 can be locked and fixed on the top of the guide rail support 5 through a locking structure. And can be used to limit the supported balance shaft 1.
Further, the guide rail 2 is of a cylindrical structure. By adopting a cylindrical structure, it is ensured that the balance shaft 1 can rotate on the guide rail 2.
Referring to fig. 7, the utility model discloses a calibration method of balance shaft and balancing stand:
1. standard instruments used:
dial gauge, precision: 0.001mm;
image combination gradienter, precision: 0.01mm/m;
1m flat bar, precision: 2, grade;
2. environmental conditions:
during verification, no magnetic field or vibration interference exists around the work site.
3. Balance shaft checking items:
3.1. performing appearance inspection; the balance shaft working surface is required to be free of rust, bruise, magnetized and other defects.
The checking method comprises the following steps: visual observation;
3.2. detecting the coaxiality phi of C, D and E by taking the common axis of A and B as a reference, wherein the coaxiality phi of C, D and E is 0.03mm;
the checking method comprises the following steps: the balance shaft is jacked up by the thimble, after the reference is corrected by taking the B as the reference, the A and B common axes are taken as the reference, the coaxiality of the C, the D and the E is detected by the dial indicator, and the requirement is met.
3.3. And the cylindricities of C and D are detected to be 0.015mm by taking a common axis of A and B as a reference.
The checking method comprises the following steps: the balance shaft of the propeller 18 rotates 360 degrees, and the cylindricity of the CD is detected by a dial indicator, so that the requirement is met.
3.4. Detecting that the radial circular runout of the F surface is not more than 0.03mm by taking the common axis of A and B as a reference;
the checking method comprises the following steps: when the balance shaft of the propeller rotates 360 degrees, the surface F is detected by a dial indicator, and the radial circular runout in any measuring plane meets the requirement.
4. Referring to fig. 8, the utility model discloses a balancing stand check-up project:
4.1. appearance:
the working surfaces of the test bed are required not to be rusted, damaged, magnetized and have other defects.
4.2. After the balance frame is assembled, the non-levelness of each of the two guide rails is less than or equal to 0.02mm/m;
the image combination level meter is used for detecting along the direction of two guide rails on the balancing stand, as shown in figure 8, AC and BD are required to meet the requirement of non-levelness.
4.3. After the balance frame is assembled, the horizontal equal height of the two guide rails is less than or equal to 0.03mm/m;
the flat rulers are respectively placed on the diagonal lines of the AC and the BD, and the image combination gradienter is placed on the flat rulers to detect along the direction of the flat rulers, so that the equal height of the level should meet the requirement.
4.4. After the balance frame is assembled, the non-parallelism of the two guide rails in the horizontal direction is less than or equal to 0.5mm;
detecting that the distance between the outer diameters of two end points of the two guide rails A, B, C and D is not more than 0.5mm by using a caliper;
4.5. the balance shaft is placed on the adjusted guide rail of the balance frame, and the unbalance degree of the balance shaft is 0;
the propeller balance shaft is lightly placed at any position on the guide rail of the balance frame, and the balance shaft cannot roll.
The utility model discloses a concrete installation technical requirement:
1. when the device is installed, the ground is cleaned firstly, so that the ground is as flat as possible;
2. adjusting the left guide rail and the right guide rail to ensure that the horizontal equal height between the left guide rail and the right guide rail is less than or equal to 0.005mm;
ensuring that the horizontal direction gradient of the left and right guide rails is less than or equal to 0.005mm and the horizontal direction parallelism is less than or equal to 0.5mm;
3. the balance shaft is placed on the guide rail of the test bed, the degree of unbalance is zero, and the degree of non-levelness is less than or equal to 0.005mm;
4. during transportation and storage, the guide rail and the balance shaft are sealed.
Claims (8)
1. The propeller static balance test bed is characterized in that: the device comprises a bottom plate (9), two groups of bases (8) are symmetrically arranged on the bottom plate (9), supports (6) are fixed at the tops of the bases (8), top plates (11) are fixedly supported at the top ends of the two supports (6) positioned on the same side, and guide rail supports (5) are supported at the top ends of the top plates (11) through two groups of height adjusting mechanisms; a guide rail limiting groove (15) for placing the guide rail (2) is processed at the top end of the guide rail support (5); a locking structure is arranged between the guide rail (2) and the guide rail support (5); the top end of the guide rail (2) is supported with a balance shaft (1).
2. The propeller static balance test bed of claim 1, wherein: the bottom plate (9) is fixedly connected with the installation foundation through a plurality of foundation expansion bolts (17).
3. The propeller static balance test bed of claim 1, wherein: an inclined support rod (7) is fixed between the outer side wall of the bracket (6) and the base (8); the base (8) is fixedly connected with the bottom plate (9) through a plurality of bolts (10).
4. A propeller static balance test stand according to claim 1 or 3, characterized in that: the support (6) is made of channel steel materials in a cutting mode.
5. The propeller static balance test bed according to claim 1, characterized in that: the height adjusting mechanism comprises an adjusting screw rod (13) fixed at the bottom end of the guide rail support (5) through a first nut (14), the other end of the adjusting screw rod (13) is supported on a nut seat (12), and the nut seat (12) is fixed at the top end of the top plate (11); the bottom end of the adjusting screw rod (13) is positioned below the top plate (11) and is locked and fixed through a second nut (16).
6. The propeller static balance test bed of claim 1, wherein: the guide rail limiting groove (15) is of a V-shaped groove structure.
7. The propeller static balance test bed according to claim 1, characterized in that: the locking structure comprises a pressing ring (3), the pressing ring (3) is sleeved at the end part of the guide rail (2) and the guide rail support (5), a locking bolt (4) is installed on the lower part of the pressing ring (3), and the tail end of the locking bolt (4) is tightly matched with the bottom end of the guide rail support (5).
8. The propeller static balance test bed of claim 1, wherein: the guide rail (2) adopts a cylindrical structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221190541.1U CN217637787U (en) | 2022-05-18 | 2022-05-18 | Propeller static balance test bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221190541.1U CN217637787U (en) | 2022-05-18 | 2022-05-18 | Propeller static balance test bed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217637787U true CN217637787U (en) | 2022-10-21 |
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ID=83654274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221190541.1U Active CN217637787U (en) | 2022-05-18 | 2022-05-18 | Propeller static balance test bed |
Country Status (1)
| Country | Link |
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| CN (1) | CN217637787U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116577020A (en) * | 2023-07-13 | 2023-08-11 | 常州市中海船舶螺旋桨有限公司 | Marine screw static balance check out test set |
-
2022
- 2022-05-18 CN CN202221190541.1U patent/CN217637787U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116577020A (en) * | 2023-07-13 | 2023-08-11 | 常州市中海船舶螺旋桨有限公司 | Marine screw static balance check out test set |
| CN116577020B (en) * | 2023-07-13 | 2023-10-20 | 常州市中海船舶螺旋桨有限公司 | Marine screw static balance check out test set |
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