CN111746822B - Large tonnage load bearing device - Google Patents
Large tonnage load bearing device Download PDFInfo
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- CN111746822B CN111746822B CN202010505622.5A CN202010505622A CN111746822B CN 111746822 B CN111746822 B CN 111746822B CN 202010505622 A CN202010505622 A CN 202010505622A CN 111746822 B CN111746822 B CN 111746822B
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- panel
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- integral welding
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- 238000003466 welding Methods 0.000 claims abstract description 67
- 210000001503 joint Anatomy 0.000 claims abstract description 22
- 238000003032 molecular docking Methods 0.000 claims abstract description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 11
- 210000005069 ears Anatomy 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 8
- 238000011112 process operation Methods 0.000 claims description 3
- 238000005728 strengthening Methods 0.000 abstract description 2
- 238000009792 diffusion process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000002457 bidirectional effect Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64F—GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR
- B64F5/00—Designing, manufacturing, assembling, cleaning, maintaining or repairing aircraft, not otherwise provided for; Handling, transporting, testing or inspecting aircraft components, not otherwise provided for
- B64F5/60—Testing or inspecting aircraft components or systems
-
- 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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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Transportation (AREA)
- Aviation & Aerospace Engineering (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The application provides a large-tonnage load carrying device, including vertical integral welding structure 1, hydraulic equipment interface 2, horizontal integral welding structure 3, butt joint strengthening rib 4 and initiative uninstallation interface 5, wherein: the vertical integral welding structure 1 comprises a first panel, a second panel and at least 2 vertical rib plates, wherein the first panel and the second panel are vertically arranged and are parallel to each other, the at least 2 vertical rib plates are vertically arranged between the first panel and the second panel, the 2 transverse rib plates are transversely arranged at two ends between the first panel and the second panel, the first panel and the second panel are both square plate-shaped structures, through holes are formed in the area, close to the top, of each vertical rib plate, and the through holes are used for hoisting devices; the hydraulic equipment interface 2 is arranged on the outer side of the first panel, and the hydraulic equipment interface 2 is in a hole group configuration and is used for docking hydraulic equipment.
Description
Technical Field
The invention belongs to the field of machinery, and particularly relates to a large-tonnage load bearing device.
Background
In the full-aircraft structural strength test of an aircraft, a load bearing device is required to safely transmit test loads applied to an aircraft structure to a load bearing structure (a load bearing terrace, a load bearing wall and the like) of a test plant. In the whole-aircraft structural strength test of the prior model aircraft, the load of a loading point can be adjusted by partition control of distributed load (such as wing load), concentrated load (such as landing gear load and engine load) also belongs to the order of tens of tons, the relatively smaller load has low requirements on the existing hardware conditions of a whole-aircraft test factory building, the strength of the existing typical load bearing device meets the requirements, and the strength of the load bearing terrace can also meet the requirements after the load on the load bearing device is spread and transmitted to the load bearing terrace in a small range through a pressure beam and an anchor bolt.
For auxiliary take-off test load is single-point large load, the load direction is inclined downward, compared with simple vertical load and horizontal load, the test loading difficulty is larger, and great challenges are brought to bearing equipment, fixing equipment, factory building bearing floors and the like, and the use requirements of the existing bearing device can not be met far.
Disclosure of Invention
The application provides a large-tonnage load bearing device to meet the loading requirements of the static test of the auxiliary take-off load of the current and future carrier-based aircraft.
The application provides a large-tonnage load carrying device, including vertical integral welded structure 1, hydraulic equipment interface 2, horizontal integral welded structure 3, butt joint strengthening rib 4 and initiative uninstallation interface 5, wherein:
the vertical integral welding structure 1 comprises a first panel, a second panel and at least 2 vertical rib plates, wherein the first panel and the second panel are vertically arranged and are parallel to each other, the at least 2 vertical rib plates are vertically arranged between the first panel and the second panel, the 2 transverse rib plates are transversely arranged at two ends between the first panel and the second panel, the first panel and the second panel are both square plate-shaped structures, through holes are formed in the area, close to the top, of each vertical rib plate, and the through holes are used for hoisting devices;
the outer side of the first panel is provided with a hydraulic equipment interface 2, and the hydraulic equipment interface 2 is in a hole group configuration and is used for butting hydraulic equipment;
the horizontal integral welding structure 3 is horizontally provided with a third panel, a fourth panel and a vertical rib plate, wherein the third panel and the fourth panel are parallel to each other up and down, the vertical rib plate is arranged between the third panel and the fourth panel, and the third panel and the fourth panel are of an I-shaped plate structure;
the vertical integral welding structure 1 is vertically arranged in the middle of the horizontal integral welding structure 3, the vertical integral welding structure 1 and the horizontal integral welding structure 3 are combined through welding, and at least 2 butt joint reinforcing ribs 4 are welded at the double-sided butt joint positions of the vertical integral welding structure 1 and the horizontal integral welding structure 3;
at least 2 active unloading interfaces 5 are arranged on the second panel, and the active unloading interfaces 5 are in a double-ear configuration.
Optionally, the two ears of the active unloading interface 5 are welded above the second panel centrally, and the two ears are lower than the central position of the hydraulic equipment interface of the first panel.
Optionally, the horizontal lengths of the first panel and the second panel of the vertical integral welding structure 1 are determined according to the load unloading required by the test and the area of the designated unloading area and the bearing capacity of the terrace;
the vertical heights of the first panel and the second panel are determined according to the size of the base of the butted hydraulic loading actuator cylinder;
the size of the opening of the through hole arranged on each vertical rib plate is determined according to the self weight of the large-tonnage load bearing device and the specification of the lifting appliance;
the distance between the first panel and the second panel and the distance between the vertical rib plates are determined according to the operation space required by the butt joint installation of the hydraulic loading actuator cylinder base, the process operation space required by welding, the number of active unloading interfaces and the structural strength requirement.
Optionally, the lengths and widths of the third panel and the fourth panel of the horizontal integral welding structure 3 are determined according to the vertical component of the test load and the terrace bearing capacity of the installation area of the large-tonnage load bearing device;
the spacing dimension of the third panel and the fourth panel is determined according to the minimization principle and comprehensively considering the existing loading equipment parameters required by the active unloading of the test load course component.
Optionally, the butt joint reinforcing ribs 4 have a preset strength.
Optionally, the hole size and pitch of the hole group of the hydraulic equipment interface 2 are consistent with the hole group of the base of the butted hydraulic loading actuator cylinder.
Optionally, the strength of the two ears of the active unloading interface 5 and the welding strength of the vertical integral welding structure 1 meet the unloading requirement of the test load course component.
Optionally, at least 2 active unloading interfaces 5 are welded to the second panel.
In summary, the large tonnage load carrying arrangement has the following advantages:
1) The device is provided with a course load active unloading interface and greatly expands the vertical load diffusion area;
2) The large-tonnage load far larger than the load of the previous loading point can be borne;
3) The load bearing device can bear large-tonnage tension-compression bidirectional load which is perpendicular to the plane of the terrace and is between 0 and 90 degrees, and the load bearing range is greatly widened.
Drawings
Fig. 1 is a schematic diagram of a load transmission principle of a large tonnage load carrying apparatus according to an embodiment of the present application;
FIG. 2 is an isometric view of a large tonnage load carrying arrangement as a whole, provided in accordance with an embodiment of the present application;
FIG. 3 is an isometric view of the entirety of another large tonnage load carrying arrangement provided in accordance with an embodiment of the present application;
FIG. 4 is a longitudinal cross-sectional view of a large tonnage load carrying arrangement according to an embodiment of the present application, taken along line I-I.
Detailed Description
The invention aims to provide a large-tonnage load carrying device. The device requires compact and lightweight construction for ease of transport and test installation; the strength and rigidity are required to meet certain requirements to ensure the safety and precision of the test. The auxiliary take-off load course component active unloading and vertical component terrace diffusion are required to be realized so as to ensure the safety of the bearing terrace and the fixing equipment of the test plant.
The invention is mainly realized by the following technical scheme: based on the characteristics of the auxiliary take-off test load of a novel carrier-based aircraft, the large-tonnage load bearing device adopts a steel plate integral welding structure, an interface for actively unloading the heading component of the test load is arranged on the integral welding structure, so that the main heading component of the test load is safely unloaded to a designated terrace area, and the integral welding structure transmits the vertical component of the test load to a bearing terrace through a reasonable grounding area. The main schematic diagram is shown in figure 1.
The large tonnage load bearing device is shown in the structure diagram of fig. 2-4, and mainly comprises a vertical integral welding structure 1, a hydraulic equipment interface 2, a horizontal integral welding structure 3, a butt joint reinforcing rib 4 and an active unloading interface 5. The vertical integral welding structure 1 is formed by welding a front panel, a rear panel and vertical rib plates clamped between the front panel and the rear panel, and holes are formed in the area, close to the top, of each vertical rib plate for hoisting the device. The hydraulic equipment interface 2 is in a hole group configuration and is positioned on a side panel of the vertical integral welding structure, and is mainly used for docking a hydraulic loading actuator cylinder base, and a hydraulic actuator cylinder is arranged on the hydraulic loading actuator cylinder base and used for applying test load. The horizontal integral welding structure 3 is formed by welding an upper panel, a lower panel and vertical rib plates clamped between the panels, and the horizontal integral welding structure is subjected to grooving treatment so as to realize the light weight of the structure. The vertical integral welding structure 1 and the horizontal integral welding structure 3 are combined into a whole through welding, and a plurality of butt joint reinforcing ribs 4 are welded at the butt joint positions of the two sides of the vertical integral welding structure 1 and the horizontal integral welding structure 3 for enhancing the butt joint strength of the two. The active unloading interface 5 is welded on the other side panel of the vertical integral welding structure, the double ears are welded above the vertical rib plate area panel of the vertical integral welding structure in a centered manner, the double ears are lower than the position of the single-ear fixing seat of the hydraulic loading equipment, and the vertical component eccentric moment is balanced by utilizing the additional moment generated in the course load balancing process, so that the load born by the front and rear fixed pressure beams is basically equal.
Wherein: the vertical integral welding structure is formed by welding a front panel, a rear panel and a vertical rib plate and a transverse rib plate clamped between the front panel and the rear panel. The horizontal size of the panel is mainly determined according to the required unloading load of the test, the area of the designated unloading area and the loading capacity of the terrace, and the vertical size of the panel is mainly determined according to the size of the base of the butted hydraulic loading actuator cylinder. And opening holes in the area, close to the top, of each vertical rib plate for hoisting the large-tonnage load bearing device, wherein the opening hole size is reasonably selected according to the self weight of the large-tonnage load bearing device and the specification of the lifting appliance. The distance between the front panel and the rear panel and the distance between the vertical rib plates are optimally set according to the operation space required by the butt joint installation of the hydraulic loading actuator cylinder base, the process operation space required by welding, the number of active unloading interfaces and the structural strength requirement.
The horizontal integral welding structure is formed by welding an upper panel, a lower panel and a vertical rib plate clamped between the panels, the horizontal two-dimensional size is mainly determined according to the vertical component of test load and the terrace bearing capacity of a large-tonnage load bearing device installation area, and the vertical size is mainly determined according to the minimization principle and comprehensively considering the parameters of the existing loading equipment required by active unloading of the test load course component. In order to lighten the large-tonnage load bearing device, the horizontal integral welding structure is subjected to grooving treatment, and the horizontal integral welding structure after grooving treatment can meet the requirements on strength and rigidity and safety diffusion of the vertical component of the test load to the terrace area.
The butt joint reinforcing rib is mainly used for further reinforcing the butt joint strength of the vertical integral welding structure and the horizontal integral welding structure after the vertical integral welding structure and the horizontal integral welding structure are subjected to butt joint welding. The butt joint reinforcing ribs are used as auxiliary reinforcing means, have certain strength, are small in appearance and cannot interfere with the completion of the whole functions of the large-tonnage load bearing device.
The hydraulic equipment interface is in a hole group configuration and is mainly used for docking the hydraulic loading actuator cylinder base. The hole size and the hole pitch of the hole group are required to be consistent with those of the base hole group of the butted hydraulic loading actuator cylinder so as to ensure that the tangential bearing of the bolt group is basically uniform when the bolt group bears large-tonnage test load, and the condition that the test fails due to the damage caused by the concentrated loading of individual bolts is avoided.
The active unloading interface is in a double-ear configuration and is mainly used for actively unloading the heading component of the test load. The strength of the double ears and the welding strength of the vertical integral welding structure can meet the unloading requirement of the test load course component. The double ears are welded above the vertical rib plate area panel of the vertical integral welding structure in a centered manner, so that main loads can be transmitted through the vertical rib plates. The double ear position should be lower than the single ear fixing seat position of the hydraulic loading equipment, and the additional moment generated in the course load balancing process is utilized to balance the vertical component eccentric moment, so that the load born by the front and rear fixed pressure beams is basically equal.
The large-tonnage load carrying device of the invention works in the following way: the hydraulic equipment interface 2 on one side panel of the vertical integral welding structure 1 is in butt joint with the hydraulic actuator cylinder base and then in butt joint with loading equipment such as a hydraulic actuator cylinder and the like, and test load is transmitted to the large-tonnage load bearing device through the hydraulic equipment interface 2. The course component of the test load is mostly unloaded to a designated area through an active unloading interface 5 positioned on the other side panel of the vertical integral welding structure 1, and the active unloading is that the controllable reverse load is actively applied by using a control device and a hydraulic loading device to counteract the test load borne by the device, and the rest small part of the course component of the test load is passively borne by an anti-skid device. The vertical component of the test load is transmitted to the bearing terrace of the device installation area through the pressure beam and the foundation bolt which are fixed on the bearing terrace through the horizontal integral welding structure, the eccentric moment of the vertical component of the test load caused by the butt joint of the hydraulic equipment interface 2 to the hydraulic actuator base and the rolling moment caused by the fact that the active unloading interface 5 is lower than the hydraulic equipment interface 2 are basically counteracted, and the fact that the load born by the front pressure beam and the rear pressure beam which fix the device is basically equal is ensured. The reasonable design structure and material selection ensure the strength and rigidity requirements of the device when carrying large tonnage loads, and ensure the safe and high-quality completion of the test.
The large-tonnage load carrying device has the following advantages:
1) The device is provided with a course load active unloading interface and greatly expands the vertical load diffusion area;
2) The large-tonnage load far larger than the load of the previous loading point can be borne;
3) The load bearing device can bear large-tonnage tension-compression bidirectional load which is perpendicular to the plane of the terrace and is between 0 and 90 degrees, and the load bearing range is greatly widened.
Claims (8)
1. The large-tonnage load carrying equipment is characterized by comprising a vertical integral welding structure (1), a hydraulic equipment interface (2), a horizontal integral welding structure (3), a butt joint reinforcing rib (4) and an active unloading interface (5), wherein:
the vertical integral welding structure (1) comprises a first panel, a second panel and at least 2 vertical rib plates, wherein the first panel and the second panel are vertically arranged and are parallel to each other, the at least 2 vertical rib plates are vertically arranged between the first panel and the second panel, the 2 transverse rib plates are transversely arranged at two ends between the first panel and the second panel, the first panel and the second panel are square plate-shaped structures, through holes are formed in the area, close to the top, of each vertical rib plate, and the through holes are used for hoisting devices;
the outer side of the first panel is provided with a hydraulic equipment interface (2), and the hydraulic equipment interface (2) is in a hole group configuration and is used for docking hydraulic equipment;
the horizontal integral welding structure (3) is provided with a third panel, a fourth panel and a vertical rib plate, wherein the third panel and the fourth panel are horizontally arranged and are parallel to each other, the vertical rib plate is arranged between the third panel and the fourth panel, and the third panel and the fourth panel are of an I-shaped plate structure;
the vertical integral welding structure (1) is vertically arranged in the middle of the horizontal integral welding structure (3), the vertical integral welding structure (1) and the horizontal integral welding structure (3) are combined through welding, and at least 2 butt joint reinforcing ribs (4) are welded at the double-sided butt joint positions of the vertical integral welding structure (1) and the horizontal integral welding structure (3);
at least 2 active unloading interfaces (5) are arranged on the second panel, and the active unloading interfaces (5) are in a double-ear configuration.
2. The device according to claim 1, characterized in that the ears of the active unloading interface (5) are welded centrally over the second panel, the ears being at a lower height than the hydraulic equipment interface center position of the first panel.
3. The device according to claim 1, characterized in that the horizontal length of the first panel and the second panel of the vertical integral welded structure (1) is determined according to the required unloading load for the test and the area and the terrace carrying capacity of the designated unloading area;
the vertical heights of the first panel and the second panel are determined according to the size of the base of the butted hydraulic loading actuator cylinder;
the size of the opening of the through hole arranged on each vertical rib plate is determined according to the self weight of the large-tonnage load bearing device and the specification of the lifting appliance;
the distance between the first panel and the second panel and the distance between the vertical rib plates are determined according to the operation space required by the butt joint installation of the hydraulic loading actuator cylinder base, the process operation space required by welding, the number of active unloading interfaces and the structural strength requirement.
4. The device according to claim 1, characterized in that the length and width of the third and fourth panels of the horizontal integral welded structure (3) are determined according to the vertical component of the test load and the terrace carrying capacity of the installation area of the large tonnage load carrying device;
the spacing dimension of the third panel and the fourth panel is determined according to the minimization principle and comprehensively considering the existing loading equipment parameters required by the active unloading of the test load course component.
5. The device according to claim 1, characterized in that the strength of the butt-joint reinforcing bars (4) is a preset strength.
6. The device according to claim 1, characterized in that the hole size and pitch of the hole group of the hydraulic equipment interface (2) corresponds to the hole group of the hydraulic loading ram base to be docked.
7. The device according to claim 1, characterized in that the binaural self-strength of the active unloading interface (5) and the welding strength with the vertical integral welding structure (1) both meet the unloading requirements of the test load heading component.
8. Device according to claim 1, characterized in that the second panel has welded thereto at least 2 active unloading interfaces (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010505622.5A CN111746822B (en) | 2020-06-05 | 2020-06-05 | Large tonnage load bearing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010505622.5A CN111746822B (en) | 2020-06-05 | 2020-06-05 | Large tonnage load bearing device |
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| Publication Number | Publication Date |
|---|---|
| CN111746822A CN111746822A (en) | 2020-10-09 |
| CN111746822B true CN111746822B (en) | 2023-12-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010505622.5A Active CN111746822B (en) | 2020-06-05 | 2020-06-05 | Large tonnage load bearing device |
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| Country | Link |
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| CN (1) | CN111746822B (en) |
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| DE102010012779B3 (en) * | 2010-03-25 | 2011-09-29 | Mtu Aero Engines Gmbh | Method for manufacturing and/or repairing of e.g. blisk for aircraft engine, involves producing joint connection between hub element and rotor blade, where connection comprises joining zone with smaller cross-section thickness |
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Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9144948B2 (en) * | 2012-04-04 | 2015-09-29 | The Boeing Company | Hat stiffeners with canted webs |
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2020
- 2020-06-05 CN CN202010505622.5A patent/CN111746822B/en active Active
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| DE102010012779B3 (en) * | 2010-03-25 | 2011-09-29 | Mtu Aero Engines Gmbh | Method for manufacturing and/or repairing of e.g. blisk for aircraft engine, involves producing joint connection between hub element and rotor blade, where connection comprises joining zone with smaller cross-section thickness |
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| CN104034549A (en) * | 2014-06-24 | 2014-09-10 | 中国飞机强度研究所 | Loading device for aircraft wing large deformation tests |
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| CN111746822A (en) | 2020-10-09 |
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