CN216424792U - Directional load loading device for rotating mechanism - Google Patents
Directional load loading device for rotating mechanism Download PDFInfo
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- CN216424792U CN216424792U CN202220050018.2U CN202220050018U CN216424792U CN 216424792 U CN216424792 U CN 216424792U CN 202220050018 U CN202220050018 U CN 202220050018U CN 216424792 U CN216424792 U CN 216424792U
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Abstract
The utility model provides a directional load loading device for rotary mechanism. The directional load loading device for the rotating mechanism comprises a rotating lever, a dowel bar, loading equipment and a test piece; a rotating point A is arranged on the rotating lever, the rotating point A divides the rotating lever into a short end B and a long end C, and the rotating lever can rotate relative to the rotating point A; one end of the test piece is provided with a rotating point G, the other end of the test piece is provided with a loading point F, and the test piece can rotate relative to the rotating point G; the dowel bar is hinged with the long end C and the loading point F respectively, and the connecting line of the long end C and the loading point F is parallel to the connecting line of the rotation point A and the rotation point G; the loading device is hinged to the short end B. The utility model utilizes the lever principle to reduce the loading displacement of the loading equipment; the reliability is higher, and the commonality is wider, can be applied to mechanisms pneumatic load tests such as undercarriage/hatch door.
Description
Technical Field
The utility model relates to an undercarriage/hatch door pneumatic load receive and releases experimental technical field, especially relates to a directional load loading device for rotary mechanism.
Background
In the field of aviation, many rotating mechanisms need to perform mechanical tests of constant directional loads, wherein a landing gear/door retraction test is typical and examines the integrity and reliability of corresponding functions of the landing gear/door under a specified pneumatic load.
Taking a retraction test of the pneumatic load of the landing gear/cabin door as an example, the retraction test is used as an important system level test in the development process of the landing gear system in the aviation field, in order to research the influence of the pneumatic load on the retraction of the landing gear/cabin door and the reliability of the loading of the pneumatic load in the take-off/landing process of an airplane, and the result of the retraction test is used as an important basis for the design of the landing gear system. The aerodynamic load can be obtained through simulation calculation or large wind tunnel tests, and is generally simulated in a laboratory due to the reasons of complex operation, huge cost and the like, namely the corresponding load simulation is carried out on the aerodynamic load provided according to the overall requirements of the airplane. The loading mode generally adopts a mode of fixed load of a balancing weight, and the plane load applying mode of the real pneumatic load is converted into point load on a certain point of the undercarriage/cabin door through theoretical calculation. One end of a traction rope is connected with a loading point, the other end of the traction rope is connected with a balancing weight through a fixed pulley, the balancing weight is hung in the air and hoisted, and the gravity borne by the balancing weight is equal to the size of a pneumatic load.
When the pneumatic load is simulated by adopting the mode, the weight block is driven to move up and down when the undercarriage/cabin door is retracted and retracted, the weight block is easy to swing due to the fact that the retraction and retraction speed is too high, and the actually applied load is not consistent with the gravity borne by the weight block; on the other hand, under the condition that the position of the fixed pulley is kept unchanged, the position of the loading point is inevitably changed along with the retraction of the landing gear/the cabin door, so that the angle of the traction rope is also changed, the loading direction is also changed during the actual simulation of the pneumatic load test, and the pneumatic load requires the constant loading direction.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a directional load loading device for rotary mechanism satisfies the pneumatic load of laboratory simulation and receive and release the experimental requirement.
The technical scheme of the utility model is that: a directional load loading device for a rotating mechanism comprises a rotating lever, a dowel bar, loading equipment and a test piece; a rotating point A is arranged on the rotating lever, the rotating point A divides the rotating lever into a short end B and a long end C, and the rotating lever can rotate relative to the rotating point A; one end of the test piece is provided with a rotating point G, the other end of the test piece is provided with a loading point F, and the test piece can rotate relative to the rotating point G; the dowel bar is hinged with the long end C and the loading point F respectively, and the connecting line of the long end C and the loading point F is parallel to the connecting line of the rotation point A and the rotation point G; the loading device is hinged to the short end B.
Preferably, the connecting line of the long end C and the loading point F is coincident with the axis of the dowel.
Preferably, the directional load loading device for the rotating mechanism is provided with a sensor between the loading point F and the dowel bar, and the sensor is electrically connected with the loading equipment.
Preferably, the direction of the loading force applied by the loading device is parallel to the axis of the dowel bar, and the loading device and the dowel bar are located on two opposite sides of the rotating lever.
Compared with the prior art, the beneficial effects of the utility model are that: the lever principle is utilized to reduce the loading displacement of the loading equipment; the reliability is higher, and the commonality is wider, can be applied to mechanisms pneumatic load tests such as undercarriage/hatch door.
Drawings
Fig. 1 is a schematic structural diagram of a directional load loading device for a rotating mechanism according to the present invention;
fig. 2 is a loading schematic diagram of the directional load loading device for a rotating mechanism provided by the present invention.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. For convenience of description, the words "upper", "lower", "left" and "right" in the following description are used only to indicate the correspondence between the upper, lower, left and right directions of the drawings themselves, and do not limit the structure.
As shown in fig. 1, the directional load loading device for a rotating mechanism provided by the present embodiment includes a rotating lever 1, a dowel bar 2, a sensor 3, a loading device 4, and a test piece 5.
The rotary lever 1 is provided with a rotary point A, the rotary point A divides the rotary lever 1 into a short end B and a long end C, the loading equipment 4 is hinged with the short end B, and the rotary lever 1 can rotate relative to the rotary point A through the driving of the loading equipment 4. And a rotating shaft can be arranged on the rotating point A.
One end of the test piece 5 is provided with a rotating point G, the other end of the test piece is provided with a loading point F, one end of the dowel bar 2 is a D end, and the other end of the dowel bar is an E end. The end D is hinged with the long end C, and the end E is hinged with the loading point F. Under the drive of the loading device 4, the rotating lever 1 rotates to drive the dowel bar 2 to horizontally displace, so that the test piece 5 can rotate relative to the rotating point G. A rotating shaft is also arranged on the rotating point G.
And the connecting line of the long end C and the loading point F is parallel to the connecting line of the rotation point A and the rotation point G. The direction of the loading force applied by the loading device 4 is parallel to the axis of the dowel bar 2, and the loading device 4 and the dowel bar 2 are positioned on two opposite sides of the rotating lever 1. And a connecting line of the long end C and the loading point F is superposed with the axis of the dowel bar 2.
As shown in fig. 2, when the test piece 5 rotates, the rotation point a and the rotation point G are fixed in position, and the direction of the connection line between the two is the same as the direction of the constant directional load required to be applied. According to the parallelogram rule, the direction of the dowel bar 2 is always consistent with the direction of the connecting line of the rotation point A and the rotation point G (namely, the connecting line of the long end C and the loading point F is superposed with the axial lead of the dowel bar 2), namely, the direction of the constant direction load required to be applied is the same. The loading displacement of the loading device 4 can also be reduced by adjusting the length ratio of the short end B to the long end C of the rotating lever 1 and utilizing the lever principle.
The test piece 5 is a rotating mechanism capable of rotating around a rotating point G, and the loading point F is an equivalent loading point of the test piece 5. The loading device 4 pushes and pulls the short end B of the rotating lever 1 through the hinge joint, so that the rotating lever 1 rotates around the rotating point A, the long end C drives the dowel bar 2 to move, and finally the load is applied to the loading point F through the dowel bar 2.
The sensor 2 is arranged on the end E and is electrically connected with the loading device 4, and the output value of the sensor 3 is fed back to the loading device 4 to realize the control of the load.
The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.
Claims (4)
1. A directional load loading device for a rotating mechanism is characterized by comprising a rotating lever (1), a dowel bar (2), loading equipment (4) and a test piece (5); a rotating point A is arranged on the rotating lever (1), the rotating point A divides the rotating lever (1) into a short end B and a long end C, and the rotating lever (1) can rotate relative to the rotating point A; one end of the test piece (5) is provided with a rotating point G, the other end of the test piece is provided with a loading point F, and the test piece (5) can rotate relative to the rotating point G; the dowel bar (2) is hinged with the long end C and the loading point F respectively, and the connecting line of the long end C and the loading point F is parallel to the connecting line of the rotating point A and the rotating point G; the loading device (4) is hinged with the short end B.
2. The directional load loading device for a rotary mechanism according to claim 1, wherein a line connecting the long end C and the loading point F coincides with the axis of the dowel (2).
3. Directional load loading device for rotary mechanisms according to claim 1, characterized by further comprising a sensor (3) arranged between the loading point F and the dowel (2), the sensor (3) being electrically connected to the loading apparatus (4).
4. A directional load loading device for a rotation mechanism according to claim 1, characterized in that the direction in which the loading device (4) applies the loading force is parallel to the axis of the dowel bar (2), and the loading device (4) and the dowel bar (2) are located on two opposite sides of the rotation lever (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220050018.2U CN216424792U (en) | 2022-01-10 | 2022-01-10 | Directional load loading device for rotating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220050018.2U CN216424792U (en) | 2022-01-10 | 2022-01-10 | Directional load loading device for rotating mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216424792U true CN216424792U (en) | 2022-05-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220050018.2U Active CN216424792U (en) | 2022-01-10 | 2022-01-10 | Directional load loading device for rotating mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216424792U (en) |
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2022
- 2022-01-10 CN CN202220050018.2U patent/CN216424792U/en active Active
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