CN209957221U - Adjustable vertical hoisting device of aircraft nose landing gear - Google Patents
Adjustable vertical hoisting device of aircraft nose landing gear Download PDFInfo
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- CN209957221U CN209957221U CN201920358634.2U CN201920358634U CN209957221U CN 209957221 U CN209957221 U CN 209957221U CN 201920358634 U CN201920358634 U CN 201920358634U CN 209957221 U CN209957221 U CN 209957221U
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Abstract
The utility model discloses an adjustable vertical hoisting device of an airplane nose landing gear, which comprises a lower hanger, a lower connecting pin shaft, an upper hanger, an upper connecting pin shaft, an adjusting pin and a limiting pin, wherein the lower hanger is provided with two guide rods, the upper ends of the two guide rods are respectively provided with a guide part, the guide parts are provided with a first limiting hole, a lower connecting rod is arranged at the back of the two guide rods, and the rear ends of the two lower connecting rods are provided with lower through holes; the lower connecting pin shaft is inserted in the lower through hole; the upper end of the upper hanger frame is provided with two balance adjusting plates, the lower end of the upper hanger frame is provided with two sleeves, the two balance adjusting plates are provided with a plurality of gravity center adjusting holes, the two guide parts are correspondingly and movably inserted into the two sleeves, the sleeves are provided with second limiting holes, the back of the two sleeves are respectively provided with an upper connecting rod, and the back ends of the two upper connecting rods are respectively provided with an upper through hole; the upper connecting pin shaft is inserted in the upper through hole; the adjusting pin penetrates through the gravity center adjusting hole; the limiting pin is used for being inserted into the first limiting hole and the second limiting hole. The utility model discloses can realize the vertical hoisting to aircraft nose landing gear.
Description
Technical Field
The utility model relates to an adjustable vertical hoisting device of aircraft nose landing gear.
Background
At present, all reference tools for aircraft maintenance in China are provided by foreign aircraft manufacturers, but for partial maintenance solutions, the operation is difficult in actual production, only harsh working parameter requirements are given, and required tooling equipment is not mentioned. For example, when the aircraft landing gear is overhauled or integrally hoisted and installed, the outer barrel of the nose landing gear is required to be vertically assembled, a plurality of rubber sealing rings exist between the bearings between the inner barrel and the outer barrel, the assembling work needs to be strictly in accordance with the construction standard, otherwise, friction and collision can occur, the sealing rings or the surface treatment layers of all parts are damaged, and the product quality is influenced. Because the outer barrel of the undercarriage is complex in structure and asymmetric in mass distribution, the lifting rope simply penetrates through a journal hole of the nose undercarriage or an upper lug and a lower lug on the outer side wall of the outer barrel of the nose undercarriage, so that vertical hoisting cannot be guaranteed.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that an adjustable vertical hoisting device of aircraft nose landing gear is provided, its vertical hoisting to aircraft nose landing gear that can realize.
Solve above-mentioned technical problem, the utility model discloses a technical scheme as follows:
an adjustable vertical hoisting device of aircraft nose landing gear, its characterized in that includes:
the lower hanger is provided with two guide rods which are fixedly connected in a left-right corresponding mode, the upper ends of the two guide rods are respectively provided with a guide part which faces vertically upwards, the guide part is provided with a plurality of first limiting holes which are vertically arranged, lower connecting rods which extend horizontally backwards are respectively arranged behind the two guide rods, the two lower connecting rods correspond to each other in a left-right mode, and the rear ends of the two lower connecting rods are respectively provided with lower through holes;
the lower connecting pin shaft is inserted in the lower through hole and is used for being connected with a lower lug on the outer side wall of the outer barrel of the nose landing gear;
the upper hanger is provided with two horizontal backward balance adjusting plates at the upper end, two vertical downward sleeves are arranged at the lower end, the balance adjusting plates are positioned right above the nose landing gear when the nose landing gear is hoisted, the two balance adjusting plates correspond to each other left and right, a plurality of gravity center adjusting holes are correspondingly formed in the two balance adjusting plates, the gravity center adjusting holes are arranged along the length direction of the balance adjusting plates, the two guide parts are correspondingly movably inserted into the two sleeves, a second limiting hole is formed in each sleeve corresponding to the first limiting hole, upper connecting rods extending horizontally backward are respectively arranged behind the two sleeves, the two upper connecting rods correspond to each other left and right, and upper through holes are respectively formed in the rear ends of the two upper connecting rods;
the upper connecting pin shaft is inserted into the upper through hole and is used for being connected with an upper connecting lug on the outer side wall of the outer barrel of the nose landing gear;
the adjusting pin penetrates through the gravity center adjusting hole;
and the limiting pin is inserted into the first limiting hole and the second limiting hole so as to connect the sleeve with the guide part.
Two groups of second limiting holes are respectively arranged on the two sleeves, the two groups of second limiting holes are vertically arranged, the interval between the two groups of second limiting holes is equal to the interval between the two adjacent first limiting holes, and limiting pins are inserted into the two groups of second limiting holes.
The two guide rods are fixedly connected through a cross beam.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model discloses structure on the make full use of nose landing gear, direct and the nose that connects on the nose landing gear urceolus lateral wall is connected, the rethread to the selection of focus regulation hole and to the regulation of the relative position between gallows and the last gallows down, can satisfy the vertical hoisting work under the multiple load distribution condition, this equipment compatibility is strong, the simple operation, the reliability is high, provides important frock support for the assembly production of various model aircraft nose landing gear.
The utility model relates to a mainly solve present at the air passenger A320 series aircraft nose landing gear at a dismouting inside and outside section of thick bamboo and whole nose landing gear subassembly hoist and mount in-process, to the problem of vertical hoisting control, mainly use now in the degree of depth repair and the subassembly integral erection process of air passenger A320 series and boeing 737 series nose landing gear. The utility model discloses can select through the hoisting point of different positions according to the actual weight distribution condition when hoist and mount, realize the perpendicular or the vertical hoist and mount of whole nose landing gear of nose landing gear urceolus. The utility model discloses can compatible different model aircraft nose landing gear's equipment test work, it is reliable convenient to use.
Drawings
Fig. 1 is a perspective view of the present invention;
FIG. 2 is a schematic diagram of the structure of a prior art aircraft nose landing gear;
fig. 3 is a schematic diagram of the utility model discloses when lifting aircraft nose landing gear.
The reference numerals in the drawings mean:
1-mounting a hanger; 11-balance adjustment plate; 12-an upper link; 13-a sleeve; 14-a second limiting hole; 15-a center of gravity adjusting hole; 2-hanging down the hanger; 21-a guide rod; 22-a lower link; 23-a cross beam; 24-a guide; 25-a first limit hole; 3-connecting a pin shaft; 4-lower connecting pin shaft; 5-an adjusting pin; 6-a limit pin; 100-outer cylinder; 101-lower connecting lug; 102-upper connecting lug.
Detailed Description
The present invention will be further described with reference to the following examples.
As shown in fig. 1, the adjustable vertical hoisting device for the nose landing gear of the airplane comprises a lower hanger 2, a lower connecting pin 4, an upper hanger 1, an upper connecting pin 3, an adjusting pin 5 and a limit pin 6. Fig. 2 is a schematic structural diagram of a conventional aircraft nose landing gear, which includes an outer barrel 100, and an upper lug 102 and a lower lug 101 are provided on an outer side wall of the outer barrel.
The lower hanger 2 is provided with two guide rods 21, the two guide rods 21 are fixedly connected in a left-right corresponding mode, the upper ends of the two guide rods 21 are respectively provided with a guide part 24 which faces vertically upwards, the guide part 24 corresponds to the left side and the right side, the guide part 24 is provided with a plurality of first limiting holes 25, the first limiting holes 25 are vertically arranged, the four first limiting holes 25 are formed in the embodiment, the rear faces of the two guide rods 21 are respectively provided with lower connecting rods 22 which extend horizontally backwards, the two lower connecting rods 22 correspond to the left side and the right side, the rear ends of the two lower connecting rods 22 are respectively provided with lower through holes, and the lower through holes at the rear ends of the two lower connecting rods 22 correspond. And the lower connecting pin shaft 4 is inserted into the lower through hole and is used for being connected with a lower connecting lug 101 on the outer side wall of the outer cylinder of the nose landing gear.
Go up the upper end of gallows 1 and be equipped with two level rearward balance adjustment board 11, balance adjustment board 11 is located the nose landing gear directly over when hoisting the nose landing gear, two balance adjustment board 11 are left and right to be corresponding, and face-to-face setting, it has a plurality of focus regulation holes 15 to correspond to open on two balance adjustment board 11, this embodiment is equipped with four focus regulation holes 15 on every balance adjustment board 11, focus regulation hole 15 arranges along the length direction of balance adjustment board 11, the lower extreme of going up gallows 1 is equipped with two perpendicular decurrent sleeves 13, two sleeves 13 correspond about controlling, two guide part 24 correspond the activity and insert in two sleeves 13, it is equipped with spacing hole 14 of second to correspond first spacing hole 25 on sleeve 13. The rear surfaces of the two sleeves 13 are respectively provided with upper connecting rods 12 which extend horizontally and backwards, the two upper connecting rods 12 correspond to each other left and right, the rear ends of the two upper connecting rods 12 are respectively provided with upper through holes, and the upper through holes at the rear ends of the two upper connecting rods 12 correspond to each other left and right. The upper connecting pin shaft 3 is inserted into the upper through hole and is used for being connected with an upper connecting lug 102 on the outer side wall of the outer cylinder of the nose landing gear.
The adjusting pin 5 penetrates through the gravity center adjusting hole 15 and is used for being connected with an external lifting component of a crane, the limiting pin 6 is used for penetrating through the first limiting hole 25 and the second limiting hole 14, and the limiting pins 6 penetrate through the sleeves 13 on the left side and the right side respectively so as to connect the sleeves 13 with the guide part 24.
When the landing gear is used, the limiting pin 6 is firstly pulled out, the position between the upper hanger 1 and the lower hanger 2 is adjusted up and down, the upper connecting pin shaft 3 and the lower connecting pin shaft 4 are respectively corresponding to the upper lug 102 and the lower lug 101 on the outer side wall of the outer cylinder of the landing gear, then the limiting pin 6 is inserted again, the upper hanger 1 and the lower hanger 2 are mutually locked, the position of the vertical hoisting device is adjusted, the upper lug 102 on the outer side wall of the outer cylinder of the landing gear is positioned between the two upper connecting rods 12, the lower lug 101 on the outer side wall of the outer cylinder of the landing gear is positioned between the two lower connecting rods 22, the upper connecting pin shaft 3 sequentially penetrates through the upper through holes and the mounting holes on the upper lug 102, the upper lug 102 of the outer cylinder of the landing gear is connected with the upper connecting rods 12, the lower connecting pin shaft 4 sequentially penetrates through the lower through holes and the mounting holes on the lower lug 101, the lower lug 101 of the landing gear is connected with the lower connecting rod 22, the, the adjusting pin 5 is inserted into the connecting hole on the lifting part of the external crane and the corresponding gravity center adjusting hole 15 on the two balance adjusting plates, thereby connecting the lifting part of the external crane and the two balance adjusting plates 11. During lifting, if the nose landing gear of the airplane is not vertical, the nose landing gear of the airplane can be put down, the adjusting pin 5 is adjusted, other gravity center adjusting holes 15 are selected, the adjusting pin 5 is connected with the other gravity center adjusting holes 15, and finally the nose landing gear of the airplane can be adjusted to be vertical. Through the cooperation of sleeve pipe 13 and guide part 24 for the aircraft nose landing gear design of the adaptable different models of this perpendicular hoist device, what of focus regulation hole 15, clearance and the concrete position between the focus regulation hole 15 all hoist according to actual need. The vertical hoisting device can be used for hoisting only the outer cylinder 100 of the nose landing gear of the airplane or directly hoisting the whole nose landing gear of the airplane.
In this embodiment, two sets of second limiting holes 14 are respectively formed in the two sleeves 13, the two sets of second limiting holes 14 are vertically arranged, the interval between the two sets of second limiting holes 14 is equal to the interval between two adjacent first limiting holes 25, and the two sets of second limiting holes 14 are respectively inserted with the limiting pins 6.
The two guide rods 21 of this embodiment are fixedly connected by a cross beam 23.
The above embodiments of the present invention are not right the utility model discloses the limited protection scope, the utility model discloses an embodiment is not limited to this, all kinds of basis according to the above-mentioned of the utility model discloses an under the above-mentioned basic technical thought prerequisite of the utility model, right according to ordinary technical knowledge and the conventional means in this field the modification, replacement or the change of other multiple forms that above-mentioned structure made all should fall within the protection scope of the utility model.
Claims (3)
1. An adjustable vertical hoisting device of aircraft nose landing gear, its characterized in that includes:
the lower hanger is provided with two guide rods, the two guide rods are fixedly connected in a left-right corresponding mode, the upper ends of the two guide rods are respectively provided with a guide part which faces vertically upwards, the guide part is provided with a plurality of first limiting holes, the first limiting holes are vertically arranged, lower connecting rods which extend horizontally backwards are respectively arranged behind the two guide rods, the two lower connecting rods correspond to each other in a left-right mode, and the rear ends of the two lower connecting rods are respectively provided with lower through holes;
the lower connecting pin shaft is inserted in the lower through hole and is used for being connected with a lower lug on the outer side wall of the outer cylinder of the nose landing gear;
the upper hanger is provided with two horizontal backward balance adjusting plates at the upper end, two vertical downward sleeves are arranged at the lower end, the balance adjusting plates are positioned right above the nose landing gear when the nose landing gear is hoisted, the two balance adjusting plates correspond to each other left and right, a plurality of gravity center adjusting holes are correspondingly formed in the two balance adjusting plates, the gravity center adjusting holes are arranged along the length direction of the balance adjusting plates, the two guide parts are correspondingly and movably inserted into the two sleeves, a second limiting hole is formed in each sleeve corresponding to the first limiting hole, upper connecting rods extending horizontally backward are respectively arranged behind the two sleeves, the two upper connecting rods correspond to each other left and right, and upper through holes are respectively formed in the rear ends of the two upper connecting rods;
the upper connecting pin shaft is inserted in the upper through hole and is used for being connected with an upper connecting lug on the outer side wall of the outer cylinder of the nose landing gear;
the adjusting pin penetrates through the gravity center adjusting hole;
and the limiting pin is inserted into the first limiting hole and the second limiting hole so as to connect the sleeve with the guide part.
2. The adjustable vertical lift device of an aircraft nose landing gear according to claim 1, wherein: two groups of second limiting holes are respectively arranged on the two sleeves, the two groups of second limiting holes are vertically arranged, the interval between the two groups of second limiting holes is equal to the interval between the two adjacent first limiting holes, and the limiting pins are inserted in the two groups of second limiting holes.
3. The adjustable vertical lift device of an aircraft nose landing gear according to claim 1, wherein: the two guide rods are fixedly connected through a cross beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920358634.2U CN209957221U (en) | 2019-03-20 | 2019-03-20 | Adjustable vertical hoisting device of aircraft nose landing gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920358634.2U CN209957221U (en) | 2019-03-20 | 2019-03-20 | Adjustable vertical hoisting device of aircraft nose landing gear |
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| Publication Number | Publication Date |
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| CN209957221U true CN209957221U (en) | 2020-01-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920358634.2U Active CN209957221U (en) | 2019-03-20 | 2019-03-20 | Adjustable vertical hoisting device of aircraft nose landing gear |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110002335A (en) * | 2019-03-20 | 2019-07-12 | 广州飞机维修工程有限公司 | A kind of adjustable vertical lifting device of aircraft nose landing gear |
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2019
- 2019-03-20 CN CN201920358634.2U patent/CN209957221U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110002335A (en) * | 2019-03-20 | 2019-07-12 | 广州飞机维修工程有限公司 | A kind of adjustable vertical lifting device of aircraft nose landing gear |
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