CN203672622U - Propeller pulling force testing stand for light sport airplane - Google Patents
Propeller pulling force testing stand for light sport airplane Download PDFInfo
- Publication number
- CN203672622U CN203672622U CN201320765101.9U CN201320765101U CN203672622U CN 203672622 U CN203672622 U CN 203672622U CN 201320765101 U CN201320765101 U CN 201320765101U CN 203672622 U CN203672622 U CN 203672622U
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- China
- Prior art keywords
- pulling force
- fixed
- propeller
- upper mounting
- mounting bracket
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- Withdrawn - After Issue
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Abstract
A propeller pulling force testing stand for a light sport airplane mainly resolves the problems of complex structure, low precision and high cost in the prior art. The propeller pulling force testing stand includes a lower mounting support and an upper mounting support. Apical shaft bearing holders are fixed on the upper mounting supports by top supports. The upper ends of four connecting rods are fixed on the upper mounting supports by connecting bar lazy arms and bearings in the apical shaft bearing holder. The lower end of each connecting rod is fixed on a hanger plate by a hanger plate bearing. A propeller mounting flange is mechanically connected to a lengthening shaft. The back end of the hanger plate is disposed on the upper mounting support by a pulling force sensor. Pulling forces generated by a rotational motion of the propeller are transmitted to the pulling force sensor by the hanger plate and four connecting rod mechanisms, and then the pulling forces are measured. Torques are measured by a torque sensor. The pulling forces and the torques are read and recorded by corresponding display instrument. Compared to like products, the propeller pulling force testing stand has the advantages of shorter testing period, simple operation, higher testing precision, and the like.
Description
Technical field
The utility model relates to a kind of light-duty sport plane tensile test platform, and especially a kind of novel light-duty sport plane screw propeller tensile test platform, belongs to field of aerospace technology.
Background technology
Along with the development of global general-use Aerobiz, the development of new model light aerocraft is also more increasing with day, and new model aircraft is before first-fly, and aircraft power system performance parameter is indispensable.The cruise speed of light-duty sport plane is not high, therefore the rotating ratio of its engine is lower, pulling force is also smaller, and it is crucial reducing in this case the frictional dissipation between parts and testing table is accurately provided.The method of torque measurement can directly be connected to torque sensor above output shaft by shaft coupling, and tension measurement will be considered problem more.The complex structure of existing tensile test platform, test operation is also cumbersome.Because the result of structural its test of reason is also not accurate enough.
Summary of the invention
The problem that complex structure, precision are low and cost is high that the utility model exists for above-mentioned prior art, and provide a kind of high precision, light-duty sport plane screw propeller tensile test platform cheaply, solve existing light aerocraft power system test operation complexity, be difficult to obtain the problem of accurate result.
For achieving the above object, the technical solution adopted in the utility model is: light-duty sport plane screw propeller tensile test platform, comprise lower mounting bracket (1) and upper mounting bracket (2), upper mounting bracket (2) is fixed with apical axis bearing seat (16) by top braces (17), it is upper that 4 connecting rods (18) upper end is fixed on upper mounting bracket (2) by connecting rod arm (10) and the bearing in apical axis bearing seat (16), and connecting rod lower end is fixed on boatswain chair (19) by boatswain chair bearing (15).Screw propeller mounting flange (14) and extension shaft (13) mechanical connection, fixed hub (12), rear end shaft coupling (11), torque sensor (9), spring coupling (8) are installed on extension shaft (13) successively, spring coupling (8) connects tested motor (7), and tested motor (7) is by rear fixed mounting (5) and mount pad connecting bottom board (6) fixing by coupling bolt (4).Boatswain chair (19) rear end is connected on upper mounting bracket (2) by pulling force sensor (3).Thereby screw propeller rotatablely moves, the pulling force that produces is delivered on pulling force sensor out testedly by boatswain chair-four-bar mechanism, and moment of torsion is obtained by torque sensor test.Read or record by corresponding Displaying Meter again.
Principle of work: according to the principle of the stressed rotation of four connecting rods, motor screw propeller equipment is sling, in the time of engine start, screw propeller produces pulling force, equipment relies on four bearings to rotate, because displacement is very little, so can think that equipment is parallel, so just can measure the pulling force of screw propeller.Torque sensor is arranged between screw propeller and motor, then with spring coupling and high strength bearing, they is coupled together.Advantage is that structure is simple and clear, and cost is low, is applicable to the test of put-put and screw propeller.
The beneficial effects of the utility model and feature: compared with prior art the structure of four connecting rod arm schemes is more succinct, only need bearing and connecting rod to connect, and the low measuring accuracy of cost is also higher.Use this complete equipment, can carry out the test of engines ground rotary speed property, the test of screw propeller ground rotary speed property, the test of propulsion system ground rotary speed property.When simple research engine performance, screw propeller is only done load, changes the pitch that load only need be changed screw propeller or change screw propeller; When simple research propeller performance, engine is only as the power that drives screw propeller.Put this covering device into wind-tunnel, can carry out propeller speed characteristic and propulsion system speed characteristic test; This covering device is moved to the highlands of different altitude height, can be carried out the test of propulsion system altitude response.The utility model, compared with other light aerocraft screw propeller tensile test stand, has short, simple to operate, the more high series of advantages of measuring accuracy of test period.
Accompanying drawing explanation
Fig. 1 is front view of the present utility model.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the vertical view of Fig. 1.
Embodiment
Embodiment
With reference to Fig. 1-3, light-duty sport plane screw propeller tensile test platform, comprise lower mounting bracket 1 and upper mounting bracket 2, upper mounting bracket 2 is fixed with apical axis bearing seat 16 by top braces 17,4 connecting rod 18 upper ends are fixed on upper mounting bracket 2 by connecting rod arm 10 and the bearing in apical axis bearing seat 16, and connecting rod lower end is fixed on boatswain chair 19 by boatswain chair bearing 15.Screw propeller mounting flange 14 and extension shaft 13 mechanical connections, fixed hub 12, rear end shaft coupling 11, torque sensor 9, spring coupling 8 are installed on extension shaft 13 successively, spring coupling 8 connects tested motor 7, and tested motor 7 is by rear fixed mounting 5 and mount pad connecting bottom board 6 and fixed by coupling bolt 4.Boatswain chair 19 rear ends are connected on upper mounting bracket 2 by pulling force sensor 3.Thereby screw propeller rotatablely moves, the pulling force that produces is delivered on pulling force sensor out testedly by boatswain chair-four-bar mechanism, and moment of torsion is obtained by torque sensor test.Read or record by corresponding Displaying Meter again.
When work, after tested motor 7 entrys into service, it rotates the moment of torsion and the rotating speed that produce and measures by torque sensor 9, it moves through drive shaft system (elasticity shaft joint 8, rear end shaft joint 11, extension shaft 13) thus being delivered to screw propeller mounting flange 14 drives screw propeller rotation, and screw propeller rotates the pulling force producing forward, drive boatswain chair 18 to produce small translation forward around boatswain chair bearing 15, this trend is measured by pulling force sensor 3.The rotating speed, the moment of torsion that record according to motor operation can calculate its power.
Main testing tool used in test, the routine measurement instrument such as the rotating speed, temperature, voltage needing except engine work, also have two specific apparatus: 1. tension tester and pulling force sensor are supporting, can measure the pulling force of screw propeller, namely the pulling force of whole propulsion system; 2. torque rotational speed meter and torque rotary speed sensor are supporting, can measure rotating speed, input torque and the power of screw propeller, namely the output power of engine.This instrument, except Real-time Collection, demonstration, can also and print data storage.
Claims (1)
1. light-duty sport plane screw propeller tensile test platform, comprise lower mounting bracket (1) and upper mounting bracket (2), it is characterized in that: upper mounting bracket (2) is fixed with apical axis bearing seat (16) by top braces (17), 4 connecting rods (18) upper end is fixed on upper mounting bracket (2) by connecting rod arm (10) and the bearing in apical axis bearing seat (16), connecting rod lower end is fixed on boatswain chair (19) by boatswain chair bearing (15), screw propeller mounting flange (14) and extension shaft (13) mechanical connection, fixed hub (12) is installed on extension shaft (13) successively, rear end shaft coupling (11), torque sensor (9), spring coupling (8), spring coupling (8) connects tested motor (7), tested motor (7) is by rear fixed mounting (5) and mount pad connecting bottom board (6) fixing by coupling bolt (4), boatswain chair (19) rear end is connected on upper mounting bracket (2) by pulling force sensor (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320765101.9U CN203672622U (en) | 2013-11-27 | 2013-11-27 | Propeller pulling force testing stand for light sport airplane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320765101.9U CN203672622U (en) | 2013-11-27 | 2013-11-27 | Propeller pulling force testing stand for light sport airplane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203672622U true CN203672622U (en) | 2014-06-25 |
Family
ID=50968904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320765101.9U Withdrawn - After Issue CN203672622U (en) | 2013-11-27 | 2013-11-27 | Propeller pulling force testing stand for light sport airplane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203672622U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103604608A (en) * | 2013-11-27 | 2014-02-26 | 沈阳航空航天大学 | Propeller tensile test bench for light sport aircraft |
-
2013
- 2013-11-27 CN CN201320765101.9U patent/CN203672622U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103604608A (en) * | 2013-11-27 | 2014-02-26 | 沈阳航空航天大学 | Propeller tensile test bench for light sport aircraft |
| CN103604608B (en) * | 2013-11-27 | 2016-04-13 | 沈阳航空航天大学 | Propeller tensile test bench for light sport aircraft |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140625 Effective date of abandoning: 20160413 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |