CN210081106U - Aircraft undercarriage dismouting equipment - Google Patents
Aircraft undercarriage dismouting equipment Download PDFInfo
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- CN210081106U CN210081106U CN201920576982.7U CN201920576982U CN210081106U CN 210081106 U CN210081106 U CN 210081106U CN 201920576982 U CN201920576982 U CN 201920576982U CN 210081106 U CN210081106 U CN 210081106U
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- outer cylinder
- landing gear
- undercarriage
- support
- trolley
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Abstract
The utility model discloses an aircraft undercarriage dismouting equipment, including the transportation bracket, the structure of transportation bracket is: the undercarriage comprises a horizontal frame, wherein an outer cylinder supporting component of an undercarriage is arranged on the front portion of the top surface of the horizontal frame, a trolley supporting component is arranged on the rear portion of the top surface of the frame, an outer cylinder support is vertically erected on the top surface of the frame, the lower end of the outer cylinder support is supported between the trolley supporting component and the outer cylinder supporting component, a transverse pin shaft hole is formed in the upper end of the outer cylinder support, a trolley collator mounting hole of an undercarriage outer cylinder and a mounting hole of one of servo connecting rod mounting holes are inserted through a pin shaft and are simultaneously inserted into the transverse pin shaft hole in the upper end of the outer cylinder support to support the undercarriage, and the outer cylinder support is high enough to enable the central line of the outer cylinder to be in a horizontal state after the outer cylinder support the undercarriage.
Description
Technical Field
The utility model relates to an aircraft undercarriage dismouting equipment.
Background
Landing gear is an important system for aircraft. As shown in fig. 1 and 2, the landing gear of the airplane comprises an outer cylinder 2, an inner cylinder 3 and a trolley 4, wherein a pair of transversely arranged trolley collator mounting holes 23 and a pair of transversely arranged follower link mounting holes 24 are formed in the rear end of the outer cylinder, one end of the inner cylinder 3 is hinged with a main beam of the trolley 4, and the other end of the inner cylinder extends into the outer cylinder 2 to form a telescopic cylinder structure. Because the landing gear is composed of precise parts, the high-precision operation is also kept in the process of assembling and disassembling the landing gear for maintenance. However, the undercarriage is large in size and heavy by over 2 tons, so that the undercarriage is very inconvenient to assemble, disassemble and maintain.
The prior art undercarriage is disassembled and assembled by fixing the undercarriage on a transport bracket provided by an undercarriage manufacturer in advance, and transporting the undercarriage separated from an airplane by the transport bracket 1.
Referring to fig. 1, the transport carriage 1 is constructed as follows: a horizontal frame, the front part of the top surface of which is provided with an outer cylinder supporting part 12 of the landing gear, which can be inserted into a front pivot mounting hole 22 at the front end of the outer cylinder 2 of the landing gear correspondingly and supports the outer cylinder of the landing gear; the rear part of the top surface is provided with a carriage support member 11 for supporting an axle 41 of one side of the landing gear carriage.
The landing gear and the transportation bracket 1 are fixed in a way that a front pivot mounting hole 22 at the front end of an outer cylinder 2 of the landing gear is connected with an outer cylinder supporting part 12 of the transportation bracket 1, an axle 41 at one side of a trolley 4 at the rear end of the landing gear is rotatably connected with a trolley supporting part 11 of the transportation bracket 1, and then the landing gear is locked on the transportation bracket 1 through a clamp. After the landing gear is transported to a maintenance factory, the locking of the clamp is cancelled, the connection of a front pivot mounting hole 22 at the front end of the outer cylinder 2 is cancelled, a rear pivot mounting hole 21 at the upper end of the outer cylinder 2 is bound by using the hanging strip 5, the landing gear is hoisted after the hanging strip 5 is connected with a lifting appliance, so that the outer cylinder of the landing gear is in a vertical state, wheels of the trolley 4 are landed, and then the landing gear is disassembled according to the steps required by a landing gear disassembling and assembling manual. According to the dismounting method, in the process that the undercarriage is lifted until the outer cylinder of the undercarriage is in a vertical state, the gravity center of the undercarriage is displaced greatly, so that the lifting appliance is stressed unstably for a section of stroke, the undercarriage has the risk of being subjected to impact load, the trolley 4 is still positioned under the outer cylinder 2 after being dismounted, and the trolley 4 is inconvenient to move away from a working area because the weight of the trolley 4 exceeds 400 Kg. Moreover, with this disassembly method, the required working area is large and more personnel assistance is required to prevent the risk of damage to the parts and injury to personnel.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that an aircraft undercarriage dismouting equipment is provided.
Adopt the utility model discloses a dismouting equipment can reduce undercarriage dismouting in-process part damage, personnel injured's risk to improve dismouting efficiency.
Solve above-mentioned technical problem, the utility model discloses the technical scheme who adopts as follows:
an aircraft landing gear dismounting device comprises a transportation bracket, wherein the transportation bracket is structurally characterized in that: a horizontal frame, the front part of the top surface of the horizontal frame is provided with an outer cylinder supporting component of the landing gear, and the horizontal frame can be correspondingly inserted into a front pivot mounting hole at the front end of the outer cylinder of the landing gear and is supported at the front end of the outer cylinder of the landing gear; the rear part of the top surface is provided with a trolley supporting part which can correspondingly support a wheel shaft at one side of the trolley of the lifting frame; the method is characterized in that: the landing gear is characterized in that an outer barrel support is vertically erected on the top surface of the frame, the lower end of the outer barrel support is supported between the trolley supporting component and the outer barrel supporting component on the top surface of the frame, the upper end of the outer barrel support is provided with a transverse pin shaft hole, a pin shaft is inserted into the transverse pin shaft hole and simultaneously inserted into a trolley collator mounting hole of the outer barrel of the landing gear or simultaneously inserted into a follow-up connecting rod mounting hole to support the landing gear, and the height of the outer barrel support is designed so that the central line of the outer barrel is in a horizontal state after the landing gear is supported.
The utility model also has the following optimized design,
the outer cylinder support is a pair of two support rods which are arranged left and right.
The lower end of the outer barrel support, which is used for being connected with the transportation bracket, is provided with a half-transverse-n-shaped notch structure with a notch facing to the side face, and the half-transverse-n-shaped notch structure is clamped on a horizontal beam of the transportation bracket.
The front end of the outer cylinder is fixedly connected with the outer cylinder supporting part through a pivot pin or movably connected with the outer cylinder supporting part through a universal joint.
Adopt the utility model discloses the work step of carrying out the undercarriage dismouting is as follows:
s1, a front pivot mounting hole at the front end of an outer cylinder of an undercarriage is movably connected with an outer cylinder supporting part of a transportation bracket through a universal joint, an axle on one side of a trolley of the undercarriage is rotatably connected with the trolley supporting part, and the undercarriage is fixed on the transportation bracket through a clamp; and disassembling the trolley collator and the follow-up connecting rod at the rear end of the lower outer barrel to expose the mounting holes of the trolley collator and the mounting holes of the follow-up connecting rod, so that one mounting hole is to be subsequently connected with the outer barrel support.
S2, eliminating the fixture fixation between the undercarriage and the transport bracket, eliminating the connection between a trolley supporting part and a trolley wheel shaft, binding the rear end of the outer cylinder by using a lifting belt, and lifting the undercarriage to the central line of the outer cylinder of the undercarriage in a horizontal state by using a lifting appliance with the weight of more than 2 tons;
s3, the lower end of the outer cylinder support is supported and mounted on the transportation bracket, and pin shaft connection between the outer cylinder support and a trolley collator mounting hole or a follow-up connecting rod mounting hole in the rear end of the outer cylinder is completed through a pin shaft;
s4, disassembling a universal joint connected between the outer cylinder supporting part and the front end of the outer cylinder, and fixedly connecting the outer cylinder supporting part and a front pivot mounting hole at the front end of the outer cylinder through other connecting components such as a pivot pin;
and S5, disassembling according to a method required by a maintenance manual of the landing gear.
If the landing gear is assembled, the outer cylinder of the landing gear is lifted and connected according to the processes of the steps S1 to S4, and the assembly is carried out in the reverse order of the disassembly sequence of the parts.
Compared with the prior art, the utility model discloses have following effect of showing:
1. the utility model discloses a suspender and the urceolus rear end of undercarriage are connected, and the undercarriage is hoisted to the urceolus central line and is the horizontality, and with hanging the undercarriage to the urceolus among the prior art and being vertical state, the focus removal of lifting by crane in-process undercarriage is less, and the process of lifting by crane is more steady, can effectively prevent to lift by crane the in-process and produce the impact load, reduces the impaired risk of spare part in the undercarriage, and the reducible field operation personnel that lift by crane the in-process needs have also reduced personnel's injured risk simultaneously.
2. The utility model discloses a urceolus support, current transportation bracket and undercarriage have the structure now and accomplish the fixed of undercarriage and lift by crane, simple structure, with low costs.
3. The utility model discloses a landing gear is in dismantlement, assembling process, and the urceolus central line is the horizontality, lifts by crane behind the wheel of dolly and dolly, the shaft dismantlement and does not receive the undercarriage to obstruct, and it is convenient to lift by crane to disassemble back spare part, is favorable to reducing the work area that the job site occupy to improve work efficiency.
Drawings
The invention will be described in further detail with reference to the following drawings and specific embodiments:
FIG. 1 is a schematic illustration of a prior art aircraft landing gear mounting and lifting on a transport carrier;
FIG. 2 is a structural view of a beam of a trolley of the landing gear of the utility model;
FIG. 3 is a schematic view of the mounting and lifting of an aircraft landing gear on a transport carrier using the present invention;
FIG. 4 is a schematic view of the mounting of the landing gear and the transport bracket of the present invention;
FIG. 5 is a schematic view of the connection structure of the outer cylinder, the outer cylinder bracket and the transportation bracket of the landing gear of the present invention;
FIG. 6 is a schematic view of the carriage of the landing gear of the present invention;
fig. 7 is a schematic view of the inner tube of the landing gear of the present invention.
Detailed Description
The following explains a specific implementation manner of the present invention with reference to the drawings and examples. The following illustrative examples are provided to explain the present invention, but not to limit the present invention.
As shown in fig. 1 to 7, the aircraft landing gear dismounting device comprises a transportation bracket 1, wherein the transportation bracket 1 is a horizontal frame, and the front part of the top surface of the transportation bracket 1 is provided with an outer cylinder supporting part 12 of the landing gear, which can be correspondingly inserted into a front pivot mounting hole 22 at the front end of an outer cylinder 2 of the landing gear and is supported at the front end of the outer cylinder of the landing gear; the outer cylinder support member 12 may be movably connected to the front end of the outer cylinder 2 by a universal joint, or may be directly fixedly connected to the front end of the outer cylinder 2 by a connecting member such as a pivot pin. The rear part of the top surface of the frame is provided with a trolley supporting part 11 which can correspondingly support an axle 41 at one side of the landing gear trolley 4; the trolley support 11 can be rotatably connected with a side wheel shaft 41 of the trolley 4. An outer cylinder support 6 is vertically erected on the top surface of the frame, the lower end of the outer cylinder support 6 is supported between a trolley supporting component 11 and an outer cylinder supporting component 12 on the top surface of the frame, a transverse pin shaft hole is formed in the upper end of the outer cylinder support 6, a landing gear is inserted into the transverse pin shaft hole through a pin shaft 7 and simultaneously inserted into a trolley collator mounting hole 23 or a follow-up connecting rod mounting hole 24 of an outer cylinder 2 of the landing gear, and the landing gear is supported in a horizontal state by the outer cylinder support 6 due to the height design of the outer cylinder support 6.
As a preferred embodiment, as shown in fig. 5, the outer cylinder bracket 6 is a pair of two support rods arranged in a left-right direction, and the upper ends of the support rods are provided with the transverse pin shaft holes.
As a preferred embodiment, the lower end of the outer cylinder bracket 6 for connecting with the transport carriage 1 has a half-transverse-n-shaped notch structure 61 with a notch facing to the side, and the half-transverse-n-shaped notch structure 61 is clamped on the horizontal beam 13 of the transport carriage 1.
As shown in fig. 3 and 4, the rear end of the outer cylinder 2 of the landing gear is provided with a pair of transversely arranged trolley collator mounting holes 23 and a pair of transversely arranged follower link mounting holes 24, which are conventional part mounting holes and are respectively used for mounting the trolley collator and the follower link of the landing gear. A transverse pin shaft hole is formed in one end, used for being connected with the outer barrel 2, of the outer barrel support 6, after the trolley collator is disassembled, the pin shaft 7 is inserted into the pin shaft mounting hole and simultaneously inserted into a trolley collator mounting hole 23 in the rear end of the outer barrel 2, and the outer barrel support 6 is fixedly connected with the rear end of the outer barrel 2.
As an alternative to the present invention, the outer cylinder bracket 6 may be connected to the follower link mounting hole 24 through the pin 7.
The method of landing gear removal is briefly described as follows:
1. the front pivot mounting hole 22 at the front end of the outer cylinder 2 of the landing gear and the outer cylinder supporting part 12 of the transportation bracket 1 form a movable connection through a universal joint, the wheel shaft 41 at one side of the trolley 4 of the landing gear and the trolley supporting part 11 are rotatably connected, and the landing gear is fixed on the transportation bracket 1 through a clamp. And (3) disassembling the trolley collator and the follow-up connecting rod at the rear end of the outer cylinder 2, exposing the trolley collator mounting hole 23 and the follow-up connecting rod mounting hole 24, and enabling one mounting hole to be connected with the outer cylinder bracket 6 subsequently.
2. The fixing of a clamp between the landing gear and the transportation bracket is cancelled, the connection between a trolley supporting part 11 and a trolley wheel shaft 41 is cancelled, the rear end of the outer cylinder 2 is bound by a lifting belt 5, and the landing gear is lifted to the central line of the outer cylinder 2 of the landing gear to be in a horizontal state through a lifting appliance with the level of more than 2 tons;
3. an outer cylinder bracket 6 is supported and installed on a transport bracket 1, and a pin shaft 7 is inserted into a trolley collator installation hole 23 of an outer cylinder 2 of the landing gear and a transverse pin shaft hole at the upper end of the outer cylinder bracket 6 to support the landing gear;
in the step, the pin shaft 7 can be inserted into a follow-up connecting rod mounting hole 24 of the outer cylinder 2 of the landing gear and a transverse pin shaft hole of the outer cylinder bracket 6 for supporting the landing gear;
4. the universal joint connected between the outer cylinder support member 12 and the front end of the outer cylinder 2 is detached, and the outer cylinder support member 12 and the front pivot mounting hole 22 at the front end of the outer cylinder 2 are fixedly connected by other connecting means such as a pivot pin;
5. disassembly was performed according to the method required by the landing gear service manual.
If the landing gear is assembled, the outer cylinder of the landing gear is lifted and connected according to the processes of the steps S1 to S4, and the assembly is carried out in the reverse order of the disassembly sequence of the parts.
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 (4)
1. An aircraft landing gear dismounting device comprising a transport carriage (1), the transport carriage (1) being structured to: a horizontal frame, the front part of the top surface of which is provided with an outer cylinder supporting part (12) of the landing gear, and the rear part of the top surface of the frame is provided with a trolley supporting part (11); the method is characterized in that: an outer cylinder support (6) is vertically erected on the top surface of the frame, the lower end of the outer cylinder support (6) is supported between the trolley supporting component (11) and the outer cylinder supporting component (12) on the top surface of the frame, a transverse pin shaft hole is formed in the upper end of the outer cylinder support (6), the outer cylinder support is inserted into a mounting hole of one of a trolley collator mounting hole (23) and a follower connecting rod mounting hole (24) of the outer cylinder of the undercarriage through a pin shaft (7) and is simultaneously inserted into the transverse pin shaft hole in the upper end of the outer cylinder support (6) to support the undercarriage, and the height of the outer cylinder support enables the center line of the outer cylinder to be in a horizontal state after the undercarriage is supported.
2. An aircraft landing gear dismounting device according to claim 1, wherein the outer drum bracket (6) is a pair of two support bars arranged side-to-side.
3. An aircraft landing gear dismounting device according to claim 1, wherein the lower end of the outer cylinder bracket (6) for connection with the transport bracket (1) has a half-transverse-n-shaped recess structure (61) with recesses facing the side, and the half-transverse-n-shaped recess structure (61) is clamped on the horizontal cross beam (13) of the transport bracket (1).
4. An aircraft landing gear dismounting device according to claim 1, wherein the front end of the outer barrel (2) is fixedly connected to the outer barrel support member (12) by a pivot pin or the front end of the outer barrel (2) is movably connected to the outer barrel support member (12) by a universal joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920576982.7U CN210081106U (en) | 2019-04-25 | 2019-04-25 | Aircraft undercarriage dismouting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920576982.7U CN210081106U (en) | 2019-04-25 | 2019-04-25 | Aircraft undercarriage dismouting equipment |
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| Publication Number | Publication Date |
|---|---|
| CN210081106U true CN210081106U (en) | 2020-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920576982.7U Active CN210081106U (en) | 2019-04-25 | 2019-04-25 | Aircraft undercarriage dismouting equipment |
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| CN (1) | CN210081106U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110116307A (en) * | 2019-04-25 | 2019-08-13 | 广州飞机维修工程有限公司 | A kind of undercarriage disassemblerassembler and assembly and disassembly methods |
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2019
- 2019-04-25 CN CN201920576982.7U patent/CN210081106U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110116307A (en) * | 2019-04-25 | 2019-08-13 | 广州飞机维修工程有限公司 | A kind of undercarriage disassemblerassembler and assembly and disassembly methods |
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