CN204776073U - Aircraft main landing gear assembly test vehicle - Google Patents
Aircraft main landing gear assembly test vehicle Download PDFInfo
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- CN204776073U CN204776073U CN201520469676.5U CN201520469676U CN204776073U CN 204776073 U CN204776073 U CN 204776073U CN 201520469676 U CN201520469676 U CN 201520469676U CN 204776073 U CN204776073 U CN 204776073U
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- underframe
- landing gear
- main landing
- test car
- assembling test
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Abstract
The utility model provides an aircraft main landing gear assembly test vehicle, include: the chassis, it includes preceding chassis and back chassis, and the chamber of vertically lining up that holds is decide to the preceding chassis upper limit, and preceding chassis is articulated with the back chassis, and a plurality of qxcomm technologys wheel is installed respectively with the bottom of back chassis to the chassis in the front, the support frame, it is arranged in and holds the intracavity, and backup pad and support column are at the length of vertical direction and the high phase -match of assembly of main landing gear, and articulated on the chassis have first electronic jar, the electronic jar of second and the electronic jar of third, and the top of first electronic jar articulates in the top of support column, and the electronic jar interval of first electronic jar and second articulates in the backup pad, the shaft positioning fixture, fixed connection in on the support frame. The assembly test vehicle have that the assembly precision is high, characteristics such as motion wide range, load bearing are big, can reduce the aircraft main landing gear in the conveying flow of ground assembly in -process, the reliability and the security of assembly has improved greatly.
Description
Technical field
The utility model belongs to transporation by plane technical field, especially relates to a kind of aircraft main landing gear assembling test car.
Background technology
Alighting gear is as the critical component on large transport plane, and the safety etc. of its assembly precision, efficiency and assembling affects further developing of large transport plane.But due to these kind equipment overall dimensions and weight all larger, when ground general assembly, instrument and equipment needs the assembling of repeatability and movement need complete by assembly aids, be subject to the restriction in the process of assembling of landing gear structure size and some bindiny mechanism simultaneously, this just makes whole fitting process become more complicated, but its assembly precision of current assembly aids, efficiency of assembling and assembling time processing safety lower, be unfavorable for the carrying out that alighting gear assembles.
Summary of the invention
In view of this, the utility model is intended to propose a kind of main landing gear assembling test car, with solve its assembly precision of current assembly aids, efficiency of assembling and assembling time processing safety lower, be unfavorable for the problem of the carrying out that alighting gear assembles.
For achieving the above object, the technical solution of the utility model is achieved in that
A kind of aircraft main landing gear assembling test car, comprising:
Underframe, described underframe comprises front underframe and rear underframe, described front underframe limits longitudinally through container cavity, described front underframe and rear underframe hinged, multiple omni-directional wheel is separately installed with in the bottom of described front underframe and rear underframe, described omni-directional wheel is connected with wheel spindle motor by transmission shaft, and described spindle motor of taking turns is fixed on described underframe, and is electrically connected with control unit;
Bracing frame, support frame as described above is placed in described container cavity, support frame as described above comprises at the bottom of frame, both ends just right at the bottom of this are longitudinally bent respectively to form the first connecting portion and the second connecting portion along identical direction, the top of described first connecting portion is fixedly connected with stay bearing plate, the top of described second connecting portion upwards extends to form pillar stiffener, described stay bearing plate and described pillar stiffener highly match in the length of vertical direction and the assembling of main landing gear, described underframe is hinged with the first electric cylinder, second electric cylinder and the 3rd electric cylinder, the top of described first electric cylinder is articulated with the top of described pillar stiffener, described first electric cylinder and the second electric cylinder interval are articulated with on described stay bearing plate,
Wheel shaft positioning fixture, described wheel shaft positioning fixture is fixedly connected on support frame as described above, and its top is provided with the located space matched with the wheel shaft of described main landing gear, and described located space has been threaded pressing plate.
Further, described omni-directional wheel is two the first Mecanum wheels and two the second Mecanum wheels, on described first Mecanum wheel and described second Mecanum wheel free roller axis between angle be acute angle, described first Mecanum wheel lays respectively at one group of diagonal angle place of described underframe, and the second Mecanum wheel lays respectively at another group diagonal angle place of described underframe.
Further, described front underframe is provided with sleeve, and underframe corresponding position is provided with the adapter shaft with described sleeve free-running fit in the rear.
Further, the top of described stay bearing plate is fixedly connected with supplemental support post, and it has been threaded bearing support, the supporting space that the wheel shaft that described bearing support is provided with main landing gear can pass.
Further, the pad of polytetrafluoroethylmaterial material is provided with in described located space and described supporting space.
Further, support frame as described above is provided with double-shaft level instrument, and described double-shaft level instrument is electrically connected with control unit.
Further, described rear underframe is installed with control housing, and control unit is placed in described control housing.
Further, the power supply of described control unit is storage battery, and described storage battery is fixedly installed on described rear underframe.
Further, described underframe is provided with four lifting part symmetrically about the wherein heart.
Further, described wheel shaft positioning fixture is threadedly connected on support frame as described above.
Relative to prior art, aircraft main landing gear assembling test car described in the utility model has following advantage:
Aircraft main landing gear assembling test car described in the utility model carries out the motion of six degree of freedom by control unit, the place conversion of product can be realized, the transhipment operation such as station conversion and high-precision assembling function, after completing for the general assembly of aircraft main landing gear, pose adjustment when the installation in assembling test type frame of the transport of main landing gear in workshop and main landing gear and dismounting, there is assembly precision high, range of movement is wide, the features such as load load-bearing is large, the transmission flow process of aircraft main landing gear in the total process of assembling in ground can be reduced, assembling test car not only can improve efficiency of assembling, save the operating time, and the operational risk of personnel in fitting process can be reduced, substantially increase reliability and the safety of assembling.
Accompanying drawing explanation
The accompanying drawing forming a part of the present utility model is used to provide further understanding of the present utility model, and schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the front elevation of the assembling test car described in the utility model embodiment;
The underframe of Fig. 2 for the assembling test car described in the utility model embodiment and the 3-D view of bracing frame confined state;
Fig. 3 is the underframe birds-eye view of the assembling test car described in the utility model embodiment;
Fig. 4 is the 3-D view of the bracing frame of the assembling test car described in the utility model embodiment;
Fig. 5 is the 3-D view of the wheel shaft positioning fixture of the assembling test car described in the utility model embodiment;
Type frame installing condition schematic diagram on the main landing gear that Fig. 6 is the wheel shaft positioning fixture of the assembling test car described in the utility model embodiment;
Type frame disassembly status schematic diagram under the main landing gear that Fig. 7 is the wheel shaft positioning fixture of the assembling test car described in the utility model embodiment.
Description of reference numerals:
1-underframe, underframe before 11-, 111-sleeve, underframe after 12-, 121-adapter shaft, 13-container cavity, 2-omni-directional wheel, 21-takes turns spindle motor, 31-first electric cylinder, 32-second electric cylinder, 33-the 3rd electric cylinder, 4-bracing frame, 41-underframe, 42-first connecting portion, 43-second connecting portion, 44-pillar stiffener, 45-stay bearing plate, 5-wheel shaft positioning fixture, 51-pressing plate, 52-located space, 6-supplemental support post, 61-supporting space, 62-bracing frame, 7-double-shaft level instrument, 8-electrical control cubicles, 9-storage battery, 10-lifting part, 110-main landing gear.
Detailed description of the invention
It should be noted that, when not conflicting, the embodiment in the utility model and the feature in embodiment can combine mutually.
Below with reference to the accompanying drawings and describe the utility model in detail in conjunction with the embodiments.
As Figure 1-5, a kind of aircraft main landing gear assembling test car, comprising:
Underframe 1, described underframe 1 comprises front underframe 11 and rear underframe 12, described front underframe 11 limits longitudinally through container cavity 13, described front underframe 11 and rear underframe 12 hinged, multiple omni-directional wheel 2 is separately installed with in the bottom of described front underframe 11 and rear underframe 12, described omni-directional wheel 2 is connected with wheel spindle motor 21 by transmission shaft, and described spindle motor 21 of taking turns is fixed on described underframe 1, and is electrically connected with control unit; Hinged relationship between front underframe 11 and rear underframe 12, ensure that omni-directional wheel 2 bottom underframe 1 can simultaneously and earth surface, when avoiding ground injustice in factory building, a certain omni-directional wheel 2 does not contact with ground and causes assembling test car cannot the generation of normal mobile problem;
Bracing frame 4, support frame as described above 4 is placed in described container cavity 13, support frame as described above 4 to comprise at the bottom of frame 41, at the bottom of this, 41 just right both ends are longitudinally bent respectively to form the first connecting portion 42 and the second connecting portion 43 along identical direction, the top of described first connecting portion 42 is fixedly connected with stay bearing plate 45, the top of described second connecting portion 43 upwards extends to form pillar stiffener 44, described stay bearing plate 45 and described pillar stiffener 44 highly match in the length of vertical direction and the assembling of main landing gear 110, described underframe 1 is hinged with the first electric cylinder 31, second electric cylinder 32 and the 3rd electric cylinder 33, the top of described first electric cylinder 31 is articulated with the top of described pillar stiffener 44, described first electric cylinder 31 and the second electric cylinder 32 interval are articulated with on described stay bearing plate 45, first connecting portion 42 and the second connecting portion 43, by 41 being bent to form at the bottom of frame, meeting assembling height on vertical direction on the one hand, improve the bulk strength of bracing frame 4 on the other hand, add the load-carrying capacity of bracing frame 4,
Wheel shaft positioning fixture 5, for fixing main landing gear 110, described wheel shaft positioning fixture 5 is fixedly connected on support frame as described above 4, and its top is provided with the located space 52 matched with the wheel shaft of described main landing gear 110, and described located space 52 has been threaded pressing plate 51.
This assembling test car controls different omni-directional wheel 2 rotating speed by control unit realizes assembling test car along X with turning to, the movement of Y-axis and the rotation around Z axis, (wherein assembling test car working direction is X-axis, omni-directional wheel wheel direction of principal axis is Y-axis, ground vertical direction is Z axis), control unit can realize bracing frame 4 and the main landing gear 110 that is fixed thereon around X by the lifting of control three electric cylinders combination, the swing of Y-axis and the lifting along Z axis, first electric cylinder 31, second electric cylinder 32 and the 3rd electric cylinder 33 extend and shorten identical length and can realize bracing frame 4 and move along Z axis, first electric cylinder 31 rises (decline), and the second electric cylinder 32 and the 3rd electric cylinder 33 decline (rising), can realize bracing frame 4 and rotate around Y-axis, first electric cylinder 31 is motionless, and the second electric cylinder 32 rises (decline), and the 3rd electric cylinder 33 declines (rising), can realize main landing gear support and rotate around X-axis, assembling test car is in the movement in X-axis, Y-axis, Z axis three directions and realize crawl around the rotational of X-axis, Y-axis, Z axis and move continuously, and during crawl, assembling test car is less than 1mm along the minimum moving step pitch of X-axis, Y-axis, moving velocity (0-0.5) m/s during continuous motion, continuously adjustabe, during crawl, the minimum moving step pitch of electric cylinder 3 is less than 0.1mm, moving velocity (0-6) mm/s during continuous motion, continuously adjustabe, assembling test car, can continuously adjustabe around Z axis degreeof turn scope 0 ° ~ 360 °, can forward and reversely rotate, assembling test car in startup and rotation process, stability of rotation, main landing gear assembling test car can rotate around X-axis ± 5 °, around Y-axis rotate ± 5 °, the top of stay bearing plate 45 is fixedly connected with supplemental support post 6, and it has been threaded bearing support 62, the supporting space 61 that the wheel shaft that bearing support 62 is provided with main landing gear 110 can pass, the supplemental support post 6 that main landing gear assembling test car is arranged, for manually adjusting the angle of pillar around wheel shaft, supplemental support post 6 can adjust main landing gear around wheel shaft rotate ± 2 °, and be threaded connection the height of structural adjustment bearing support 62 in the vertical direction, the deviation of assembling height in electric cylinder 3 range and main landing gear 110 can be compensated.
As shown in Figure 3, described omni-directional wheel 2 is two the first Mecanum wheels and two the second Mecanum wheels, on described first Mecanum wheel and described second Mecanum wheel free roller axis between angle be acute angle, described first Mecanum wheel lays respectively at one group of diagonal angle place of described underframe 1, and the second Mecanum wheel lays respectively at another group diagonal angle place of described underframe 1; Mecanum wheel compact conformation, motion flexibly, when turning, minimum turning space is needed to realize cornering operation, be applicable in the limited factory building in place, to the operation of the pose adjustment when installation in assembling test type frame of the transport of main landing gear 110 in workshop and main landing gear 110 and dismounting.
As shown in Figure 3, described front underframe 11 is provided with sleeve 111, and underframe 12 corresponding position is provided with the adapter shaft 121 with described sleeve 111 free-running fit in the rear; This kind of articulated manner structure is simple, and connection reliability is high.
The pad of polytetrafluoroethylmaterial material is provided with in described located space 52 and described supporting space 61; Set up gasket construction protection main landing gear 110 in stationary positioned machine and moving process to the damage on main landing gear 110 surface.
As shown in Figure 1, support frame as described above 4 is provided with double-shaft level instrument 7, and described double-shaft level instrument 7 is electrically connected with control unit; Set up double-shaft level instrument 7, control unit can load the inclination angle of bracing frame 4 along X-axis and Y-axis of alighting gear by Real-Time Monitoring, when exceeding the inclination maximum of setting, control unit control bracing frame 4 will stop towards the motion of inclination angle augment direction, the direction motion that bracing frame 4 can only reduce towards inclination angle.
As shown in Figure 2, described rear underframe 12 is installed with control housing 8, control unit is placed in described control housing 8; The power supply of described control unit is storage battery 9, and described storage battery 9 is fixedly installed on described rear underframe 12.
As shown in Figure 1, described underframe 1 is provided with four lifting part 10 symmetrically about the wherein heart; The transport attachment point being provided as lifting of lifting part, avoids, to rocking in assembling test car transportation, ensureing the safety of transport.
Described wheel shaft positioning fixture 5 is threadedly connected on support frame as described above 4; The spiro connection structure of described wheel shaft positioning fixture 5 and bracing frame 4, and can quick-detachment, improve efficiency of assembling.
Type frame operating principle on main landing gear:
Main landing gear mo(u)ld top half rack-like state as shown in Figure 6, is not filled tire when considering type frame assembling on main landing gear 110, is first locked by screw and bracing frame 4 by wheel shaft positioning fixture 5, is backed out by the jam nut on wheel shaft positioning fixture 5, opened by pressing plate 51;
Assembling test car is moved on the level levelling road surface near main landing gear 110 storage area, guarantee that in factory building, alighting gear 110 can hang on test car by overhead traveling crane;
Operating personal utilizes overhead traveling crane first to be sling by the main landing gear 110 not filling tire to be put on wheel shaft positioning fixture 5, the wheel shaft of main landing gear 110 front end is toppled on the bearing support 62 be against on supplemental support post 6, then utilizes the pressing plate 51 on wheel shaft positioning fixture 5 and jam nut the wheel shaft of main landing gear 110 and wheel shaft positioning fixture 5 to be locked;
Being moved to by the assembling test car that main landing gear 110 is housed by control unit has led near type frame;
Arrive after near main landing gear type frame, assembling test car is ajusted, makes assembling test car side parallel with type frame, under low-grade low speed, main landing gear assembling test car is transversely slowly moved to by control unit and led bottom type frame; Move the first electric cylinder 31, second electric cylinder 32 and the 3rd electric cylinder 33 by control unit master is played a wheel shaft to rise near type frame target location, reach after near target location, by control unit, supplemental support post fine adjustment function Collaborative Control and crawl vernier control, the wheel shaft of main landing gear 110 is hung up type frame, and lock.
After the wheel shaft having led frame 110 hangs up type frame, first unclamped by the jam nut on wheel shaft positioning fixture 5, pressing plate 51 is opened, and the first electric cylinder 31, second electric cylinder 32 and the 3rd electric cylinder 33 are reset to initial position, after reset completes, assembling test car is transversely exited and has led type frame assembly area.Complete the upper type frame process of main landing gear 110.
Type frame disassembling section principle under main landing gear:
Fit a tyre during main landing gear 110 times type frame dismountings, first unclamps the attaching screw between the wheel shaft positioning fixture 5 of main landing gear 110 and bracing frame 4, is taken off by wheel shaft positioning fixture 5 from assembling test car;
Being moved to by main landing gear assembling test car by control unit has led near type frame;
Consider that three main landing gears 110 take off by the process need assembling test car of main landing gear 110 times type frame successively, when main landing gear 110 got by assembling test car, state as shown in Figure 7.The tire perigee distance ground 344.56mm of main landing gear 110, assembling test car car bottom framework is apart from ground minor increment 297.5mm, by control unit, assembling test car is got main landing gear 110 along shown position cross motion, assembling test car front end distance main landing gear 110 tire minor increment 68.4mm foremost, distance is positioned at the main landing gear 110 tire minor increment 65.5mm of assembling test car, supplemental support post 6 distance from top main landing gear 110 wheel shaft minor increment 50mm.Consider that operational space is narrower and small, in main landing gear assembling test car transverse shifting process, operating personal needs on-site actual situations constantly to finely tune the direction revising assembling test car, the operation of low speed low grade must be selected in operating process, want slowly in the process of operation rocking bar, be sure not to occur the anxious operation stopped of hitch, avoid colliding between assembling test car and main landing gear 110 tire;
When main landing gear assembling test car slowly moves to bottom main landing gear 110, guarantee that the supporting space 61 of the supplemental support post 6 of bracing frame 4 front end can lift the cant beam of main landing gear 110, then test car bracing frame 4 to be moved up about 150mm by control unit, ensure to contact with main landing gear 110 tyre stabilise bottom bracing frame 4, the supplemental support post 6 of front end can contact with the cant beam of main landing gear 110, then the bearing pin between main landing gear 110 and type frame is unclamped, drop on completely after on bracing frame 4 until main landing gear 110, by the bracing frame 4 lifting main landing gear 110 resets by control unit, transversely move to exit by assembling test car by control unit and led type frame assembly area, main landing gear 110 is moved to target area, complete the lower type frame process of main landing gear 110.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (10)
1. an aircraft main landing gear assembling test car, is characterized in that: comprising:
Underframe (1), described underframe (1) comprises front underframe (11) and rear underframe (12), described front underframe (11) limits longitudinally through container cavity (13), described front underframe (11) and rear underframe (12) hinged, multiple omni-directional wheel (2) is separately installed with in the bottom of described front underframe (11) and rear underframe (12), described omni-directional wheel (2) is connected with wheel spindle motor (21) by transmission shaft, described spindle motor (21) of taking turns is fixed on described underframe (1), and is electrically connected with control unit;
Bracing frame (4), support frame as described above (4) is placed in described container cavity (13), support frame as described above (4) comprises (41) at the bottom of frame, the both ends that at the bottom of this, (41) are just right are longitudinally bent respectively to form the first connecting portion (42) and the second connecting portion (43) along identical direction, the top of described first connecting portion (42) is fixedly connected with stay bearing plate (45), the top of described second connecting portion (43) upwards extends to form pillar stiffener (44), described stay bearing plate (45) and described pillar stiffener (44) highly match in the length of vertical direction and the assembling of main landing gear (110), described underframe (1) is hinged with the first electric cylinder (31), second electric cylinder (32) and the 3rd electric cylinder (33), the top of described first electric cylinder (31) is articulated with the top of described pillar stiffener (44), described first electric cylinder (31) and the second electric cylinder (32) interval are articulated with on described stay bearing plate (45),
Wheel shaft positioning fixture (5), described wheel shaft positioning fixture (5) is fixedly connected on support frame as described above (4), its top is provided with the located space (52) matched with the wheel shaft of described main landing gear (110), and described located space (52) has been threaded pressing plate (51).
2. assembling test car according to claim 1, it is characterized in that: described omni-directional wheel (2) is two the first Mecanum wheels and two the second Mecanum wheels, on described first Mecanum wheel and described second Mecanum wheel free roller axis between angle be acute angle, described first Mecanum wheel lays respectively at one group of diagonal angle place of described underframe (1), and described second Mecanum wheel lays respectively at another group diagonal angle place of described underframe (1).
3. assembling test car according to claim 1, is characterized in that: described front underframe (11) is provided with sleeve (111), and underframe (12) corresponding position is provided with the adapter shaft (121) with described sleeve (111) free-running fit in the rear.
4. assembling test car according to claim 1, it is characterized in that: the top of described stay bearing plate (45) is fixedly connected with supplemental support post (6), it has been threaded bearing support (62), the supporting space (61) that the wheel shaft that described bearing support (62) is provided with main landing gear (110) can pass.
5. assembling test car according to claim 4, is characterized in that: the pad being provided with polytetrafluoroethylmaterial material in described located space (52) and described supporting space (61).
6. assembling test car according to claim 1, is characterized in that: support frame as described above (4) is provided with double-shaft level instrument (7), and described double-shaft level instrument (7) is electrically connected with control unit.
7. assembling test car according to claim 1, is characterized in that: described rear underframe (12) is installed with control housing (8), and control unit is placed in described control housing (8).
8. assembling test car according to claim 1, is characterized in that: the power supply of described control unit is storage battery (9), and described storage battery (9) is fixedly installed on described rear underframe (12).
9. assembling test car according to claim 1, is characterized in that: described underframe (1) is provided with four lifting part (10) symmetrically about the wherein heart.
10. assembling test car according to claim 1, is characterized in that: described wheel shaft positioning fixture (5) is threadedly connected on support frame as described above (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520469676.5U CN204776073U (en) | 2015-07-02 | 2015-07-02 | Aircraft main landing gear assembly test vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520469676.5U CN204776073U (en) | 2015-07-02 | 2015-07-02 | Aircraft main landing gear assembly test vehicle |
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| Publication Number | Publication Date |
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| CN204776073U true CN204776073U (en) | 2015-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520469676.5U Active CN204776073U (en) | 2015-07-02 | 2015-07-02 | Aircraft main landing gear assembly test vehicle |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106742043A (en) * | 2017-01-19 | 2017-05-31 | 陕西理工学院 | A kind of undercarriage installs car |
| CN108715232A (en) * | 2018-06-05 | 2018-10-30 | 荆门畅享光年机电技术服务有限公司 | It is a kind of that device is replaced according to the intelligent aircraft wheel hub of the big minor adjustment of sliding wheel |
| CN110294141A (en) * | 2019-08-07 | 2019-10-01 | 沈阳飞机工业（集团）有限公司 | Take off landing system Automated assembly, adjustment method |
-
2015
- 2015-07-02 CN CN201520469676.5U patent/CN204776073U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106742043A (en) * | 2017-01-19 | 2017-05-31 | 陕西理工学院 | A kind of undercarriage installs car |
| CN108715232A (en) * | 2018-06-05 | 2018-10-30 | 荆门畅享光年机电技术服务有限公司 | It is a kind of that device is replaced according to the intelligent aircraft wheel hub of the big minor adjustment of sliding wheel |
| CN108715232B (en) * | 2018-06-05 | 2019-03-26 | 荆门畅享光年机电技术服务有限公司 | It is a kind of that device is replaced according to the intelligent aircraft wheel hub of the big minor adjustment of sliding wheel |
| CN110294141A (en) * | 2019-08-07 | 2019-10-01 | 沈阳飞机工业（集团）有限公司 | Take off landing system Automated assembly, adjustment method |
| CN110294141B (en) * | 2019-08-07 | 2022-07-05 | 沈阳飞机工业（集团）有限公司 | Automatic assembling and debugging method for aircraft take-off and landing system |
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