CN212243796U - Two-way high-bearing connecting device - Google Patents
Two-way high-bearing connecting device Download PDFInfo
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- CN212243796U CN212243796U CN201922387628.2U CN201922387628U CN212243796U CN 212243796 U CN212243796 U CN 212243796U CN 201922387628 U CN201922387628 U CN 201922387628U CN 212243796 U CN212243796 U CN 212243796U
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- bearing
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- connecting screw
- landing gear
- screw rod
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/40—Weight reduction
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Abstract
The utility model provides a two-way high bears connecting device (1), include: connecting screw (5), two-way high bearing joint (6), abrasionproof bush (7), wherein, two-way high bearing joint (6) are fixed in on main undercarriage cabin curb girder structure (2), behind the embedded abrasionproof bush (7) of side stay structure (3) one end, accessible connecting screw (5) rotate to be connected on two-way high bearing joint (6), connecting screw (5) are in main supporting pillar stop revolving stage (4) and are in main undercarriage state of packing up, the emergent landing buffering energy-absorbing of ventral is upwards compressed the certain distance after, support main supporting pillar stop revolving stage (4), restriction main undercarriage gets into inside the passenger cabin. The utility model discloses a to the rational design of two-way high carrier joint, alleviateed aircraft organism structural weight, saved the space in undercarriage cabin.
Description
Technical Field
The utility model relates to a structure passes power route design field, concretely relates to two-way high bearing connecting device.
Background
When the existing fuselage type main landing gear aircraft is designed for preventing the aircraft from falling and colliding, a method of separately designing a side stay rod joint and a main starting strut rotation stopping platform bearing structure is generally adopted, and the main starting strut rotation stopping platform bearing structure is a titanium alloy structure, so that the weight is large, and the space in a landing gear cabin is occupied greatly.
SUMMERY OF THE UTILITY MODEL
The utility model provides a two-way high bears connecting device can alleviate the problem that current side stay joint and main pillar spline platform bearing structure separately designed and lead to.
The utility model provides a two-way high bears connecting device for main undercarriage, main undercarriage includes: the main landing gear cabin side beam structure 2, the side stay bar structure 3 and the main starting support stopping rotary table 4; two-way high bearing connection device includes: the connecting screw rod 5, the bidirectional high-bearing joint 6 and the anti-abrasion bushing 7 are connected; wherein the content of the first and second substances,
the bidirectional high-bearing connecting device 1 is fixed on a main landing gear cabin side beam structure 2;
a through hole is formed in the bidirectional high bearing joint 6, and the connecting screw 5 is fixedly arranged in the through hole in a penetrating manner;
the side stay bar structure 3 is rotatably connected with the connecting screw rod 5 through the embedded anti-abrasion bushing 7;
the connecting screw 5 is used for supporting the main lifting column rotary stopping table 4 when the main landing gear is retracted.
Optionally, three support frames arranged in parallel are arranged on the bidirectional high-bearing joint 6, and the through holes are arranged at corresponding positions on the three support frames arranged in parallel;
the anti-abrasion bushing 7 is arranged between two adjacent support frames, and the main starting support rotation stopping table 4 is in contact with the connecting screw rod 5 positioned between the two adjacent support frames.
Optionally, the bidirectional high load-bearing joint 6 further includes: a bearing contact surface provided between the main starting column rotation stopping table 4 and a portion for bearing the connecting screw 5 of the main starting column rotation stopping table 4;
the bearing contact surface is a cylindrical curved surface, and the radian of the bearing contact surface is the same as that of the rotation stopping contact surface of the main starting support rotation stopping table 4.
Optionally, the bidirectional high bearing joint 6 further includes a base; the three support frames arranged in parallel are arranged on the base, and the bidirectional high bearing joint 6 is fixed on the main landing gear cabin side beam structure 2 through the base.
Optionally, a reinforcing rib is arranged between the base and the first support frame, and the first support frame is adjacent to the wear-resistant bushing 7 and is not in contact with the bearing contact surface;
the bearing contact surface is arranged between two adjacent supporting frames.
Optionally, through holes arranged at corresponding positions on the three support frames arranged in parallel are designed coaxially, and the apertures are consistent;
the shaft of the through hole and the base form a preset angle, and the shaft of the through hole inclines towards the main starting support stopping table 4.
The bidirectional high-bearing connecting device is ingenious in design, high in comprehensive utilization degree, small in occupied space in a main landing gear cabin, light in weight and high in practicability, and the weight of the aircraft body structure is reduced.
The problem of aircraft main landing gear back main rising post spline platform bearing structure and main landing gear put down back side vaulting pole bearing joint comprehensive utilization design is solved in this design, takes a connection basis of sharing, ingenious realization side vaulting pole one end and main rising post spline platform two not equidirectional heavy load pass power route's comprehensive design.
The utility model provides a bidirectional high-bearing connecting device which solves the problem that the main undercarriage of an airplane should be limited from entering the interior of a passenger cabin when the main undercarriage of the airplane is retracted and the belly of the airplane is in emergency landing; meanwhile, the force transmission routes of the large loads in two different directions are comprehensively utilized and designed, and a method of sharing one connection foundation is adopted, so that the weight of the aircraft body structure is reduced, and the space in the landing gear cabin is saved.
Drawings
Fig. 1 is a schematic view of a bidirectional high-load-bearing connecting device provided by the present invention when a main landing gear is in a down state;
fig. 2 is a schematic view of the two-way high load bearing connection device provided by the present invention when the main landing gear is in the stowed state;
fig. 3 is a structural diagram of the bidirectional high-load-bearing connecting device provided by the present invention;
FIG. 4 is a structural diagram of the connecting screw rod provided by the present invention;
fig. 5 is a structural diagram of the bidirectional high load-bearing joint provided by the present invention;
fig. 6 is a structural view of the wear-resistant bush provided by the present invention;
fig. 7 is a structural view of a metal gasket provided by the present invention;
fig. 8 is a structural diagram of the coupling nut according to the present invention;
description of reference numerals:
1-bidirectional high-bearing connecting device;
2-side beam structure;
3-side brace rod structure;
4-main starting support stopping rotating platform;
5, connecting a screw rod;
6-bidirectional high bearing joint;
7-anti-wear lining;
8-a metal gasket;
and 9, connecting a nut.
Detailed Description
The following describes the two-way high-load-bearing connection device provided by the present invention with reference to the accompanying drawings.
Fig. 1 is the functional schematic diagram that two-way height bore connecting device when main undercarriage puts down the state, and fig. 2 is the functional schematic diagram that two-way height bore connecting device when main undercarriage stows up the state, and fig. 3 is the utility model provides a two-way height bears the connecting device structure picture. As shown in fig. 1-3, the utility model discloses a two-way high bears connecting device, include: a connecting screw rod 5, a bidirectional high-bearing joint 6, an anti-abrasion bush 7, a metal washer 8 and a connecting nut 9, wherein,
the bidirectional high-bearing joint 6 is fixed on the side beam structure 2 in the main landing gear cabin, and one end of the side stay bar structure 3 is embedded with an anti-abrasion bush 7 and then is rotatably connected to the connecting screw rod 5;
the main starting support stopping rotating platform 4 is in contact with the connecting screw rod 5 by adopting a cylindrical curved surface after the aircraft main undercarriage is retracted, and the two cylindrical curved surfaces are coaxial.
Optionally, the bushing 7 is an anti-wear material.
Optionally, the contact surface of the main starting support stopping rotating table 4 is a cylindrical curved surface, and the contact surface of the main starting support stopping rotating table 4 and the connecting screw rod 5 are designed coaxially.
Optionally, the bidirectional high-bearing joint 6 includes three support frames arranged in parallel, the bidirectional high-bearing joint 6 is only provided with a reinforcing rib at one end, and the two parallel support frames at the other end are bridged by a cylindrical curved surface.
Optionally, the bidirectional high load bearing device further includes: a coupling nut 9;
the connecting screw rod 5 is sleeved with a metal washer 8 and a connecting nut 9, and the metal washer 8 is located on one side of the supporting frame provided with the reinforcing ribs and is in a compression state.
The utility model provides a two-way high bears connecting device when using, can divide four steps to realize:
1) the bidirectional high bearing joint 6 is an machined part and is fixed at the position of the side beam structure 2 in the main landing gear cabin;
2) when the main undercarriage is in a down state, one end 3 of the side stay bar structure is embedded with an anti-abrasion bush 7 and then is rotatably connected to the connecting screw rod 5 to transfer corresponding load;
3) the main starting strut stopping rotating platform 4 is manufactured in a die forging process when a main strut of the main landing gear is manufactured, and the contact surface of the main starting strut stopping rotating platform 4 and a side strut joint is an arc surface;
4) the connecting screw rod 5 or the curved surface on the connecting screw rod 5 bears upward supporting load brought by the main starting strut rotating-stop table 4 after the main landing gear is in landing buffering energy absorption and is compressed upwards for a certain distance when the main landing gear is in a retracted state and the belly emergency landing, and limits the main landing gear from entering the cabin.
Claims (6)
1. A bi-directional high load bearing connection for a main landing gear, the main landing gear comprising: the main landing gear cabin side beam structure (2), the side stay bar structure (3) and the main starting support column rotation stopping table (4); characterized in that, the two-way high bearing connecting device comprises: a connecting screw rod (5), a bidirectional high-bearing joint (6) and an anti-abrasion bushing (7); wherein the content of the first and second substances,
the bidirectional high-bearing connecting device (1) is fixed on a side beam structure (2) of a main landing gear cabin;
a through hole is formed in the bidirectional high bearing joint (6), and the connecting screw rod (5) is fixedly arranged in the through hole in a penetrating manner;
the side supporting rod structure (3) is rotatably connected with the connecting screw rod (5) through the embedded anti-abrasion bushing (7);
and the connecting screw rod (5) is used for supporting the main lifting support column rotary stopping table (4) when the main landing gear is retracted.
2. The bidirectional high load-bearing connecting device according to claim 1, wherein three parallel supporting frames are arranged on the bidirectional high load-bearing joint (6), and the through holes are arranged at corresponding positions on the three parallel supporting frames;
the anti-abrasion bushing (7) is arranged between two adjacent support frames, and the main starting support column rotation stopping table (4) is in contact with the connecting screw rod (5) located between the two adjacent support frames.
3. The bi-directional high load bearing connection device according to claim 2, characterized in that the bi-directional high load bearing joint (6) further comprises: the bearing contact surface is arranged between the main starting support stopping rotary table (4) and a part for bearing a connecting screw rod (5) of the main starting support stopping rotary table (4);
the bearing contact surface is a cylindrical curved surface, and the radian of the bearing contact surface is the same as that of the rotation stopping contact surface of the main starting support rotation stopping table (4).
4. The bi-directional high load bearing connection device according to claim 3, characterized in that the bi-directional high load bearing joint (6) further comprises a base; the three support frames arranged in parallel are arranged on the base, and the bidirectional high bearing joint (6) is fixed on the side beam structure (2) of the main landing gear cabin through the base.
5. The connecting device of claim 4, wherein a reinforcing rib is arranged between the base and the first support frame, and the first support frame is adjacent to the support frame which is the wear-resistant bushing (7) and is not in contact with the bearing contact surface;
the bearing contact surface is arranged between two adjacent supporting frames.
6. The bidirectional high-load-bearing connecting device according to claim 5, wherein the through holes provided at corresponding positions on the three support frames arranged in parallel are coaxially designed and have consistent apertures;
the shaft of the through hole and the base form a preset angle, and the shaft of the through hole inclines towards the main starting support stopping rotary table (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922387628.2U CN212243796U (en) | 2019-12-26 | 2019-12-26 | Two-way high-bearing connecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922387628.2U CN212243796U (en) | 2019-12-26 | 2019-12-26 | Two-way high-bearing connecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212243796U true CN212243796U (en) | 2020-12-29 |
Family
ID=73972696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922387628.2U Active CN212243796U (en) | 2019-12-26 | 2019-12-26 | Two-way high-bearing connecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212243796U (en) |
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2019
- 2019-12-26 CN CN201922387628.2U patent/CN212243796U/en active Active
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