CN115014149A - Airplane part unlocking stroke measuring device and method - Google Patents
Airplane part unlocking stroke measuring device and method Download PDFInfo
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- CN115014149A CN115014149A CN202210616717.3A CN202210616717A CN115014149A CN 115014149 A CN115014149 A CN 115014149A CN 202210616717 A CN202210616717 A CN 202210616717A CN 115014149 A CN115014149 A CN 115014149A
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- rotating
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/0002—Arrangements for supporting, fixing or guiding the measuring instrument or the object to be measured
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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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Transportation (AREA)
- Aviation & Aerospace Engineering (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention belongs to the field of mechanical debugging and measuring of an airplane emergency lifesaving system, and provides a device and a method for measuring an unlocking stroke of an airplane part. The aircraft part unlocking stroke measuring device comprises a clamping mechanism, a fixed base mechanism and a driving mechanism; the scale marks of the scale rod are matched with the scale pointer structure of the movable bracket to realize rapid and visual reading operation; and the quick-release type clamping is adopted, so that the mounting and dismounting time is reduced, and the efficiency of unlocking stroke check work is improved. The clamping mechanism is composed of a quick-release bolt, a rotating nut, a left fixing frame and a right fixing frame, and the front wheel angle ruler can be detached by unscrewing the quick-release bolt. Compared with the conventional screw fastening mode, the repair frequency of the tool is reduced. Each part of the device can be easily installed in a part measuring area, the installation difficulty is reduced, and the working efficiency is improved.
Description
Technical Field
The invention relates to the field of mechanical debugging and measuring of an airplane emergency lifesaving system, in particular to a device and a method for measuring an unlocking stroke of airplane parts.
Background
When the aircraft flies in the air, a pilot is in the cockpit, the cockpit is in a relatively closed environment, and when the pilot needs to jump parachutes under special conditions, the pilot is popped out of the cockpit by means of the work of the cockpit lifesaving system, so that the pilot can leave the aircraft. Therefore, in the process of debugging the airplane, the inspection of the cabin lifesaving system is indispensable.
In the process of checking an aircraft lifesaving system, related finished products and functional accessories are installed and performance indexes are accurately debugged and measured, wherein when the unlocking stroke of aircraft parts is measured, the stroke measuring tool plays an irreplaceable role. The disassembly, assembly and use of the measuring tool and the measuring effect directly influence the efficiency of the cabin lifesaving system inspection work and the product quality.
At present, in the process of checking the unlocking stroke of airplane parts, stroke indexes given in technical conditions are measured, the existing method mainly depends on the mechanical structure of the parts, then related measuring equipment is used, the motion characteristics and the size data parameters of the parts are combined, formula calculation is carried out, and finally required stroke data can be obtained. Although the method can well complete the cost work, the result can be obtained only by converting the measured data, the working time is long, and the workload is large.
Disclosure of Invention
In view of the reasons, the device and the method for measuring the unlocking stroke of the airplane part are provided, the device for measuring the unlocking stroke of the airplane part is mainly used for efficiently completing accurate measurement and inspection of the unlocking stroke of the cabin lifesaving system part, is adaptive to a system mechanical structure, is easy to install and disassemble, is more convenient and visual to read scales, reduces the operation difficulty, improves the working efficiency and ensures the accuracy of measured data on the premise of simplifying the measuring method. The device can directly reflect the real-time distance of the movement of the part, thereby not only improving the measurement efficiency, but also ensuring the product quality.
The technical scheme of the invention is as follows: an aircraft part unlocking stroke measuring device comprises a clamping mechanism, a fixed base mechanism and a driving mechanism; the left fixing frame 1 and the right fixing frame 2 are both in a semicircular ring shape, are connected through a rotating pin shaft 16 to form a clamping mechanism, are used for clamping an airplane part unlocking stroke measuring tool on the surface of a part shell, play a role in fixing the whole measuring tool, and are locked and fixed through a quick-release bolt 3 and a rotating nut 4;
the fixed base mechanism comprises a lower stop base 5, a lead screw 8, a driven gear 9, an upper stop base 10, a scale rod 12 and a polished rod 13, plays a role in connecting the moving assembly and the driving mechanism, is directly contacted with the left fixed frame 1 and the right fixed frame 2, and ensures the working fixity; the end part of the clamping mechanism is connected with a lower stop base 5; two lead screws 8, a scale rod 12 and a polished rod 13 are arranged between the lower stop base 5 and the upper stop base 10; the movable bracket 6 is in threaded connection with the two screw rods 8 to perform reciprocating motion, further drives the parts to achieve unlocking action, and is provided with the elongated slots, so that the airplane parts can be installed without disassembling and assembling to complete the measurement tool, and the working efficiency is improved. Each screw 8 is provided with a driven gear 9; the movable bracket 6 is provided with a scale pointer which is matched with the scale rod 12 to obtain scales.
The driving mechanism comprises a rotating handle 11, a rotating shaft 14 and a main gear 15 which are connected in sequence; the rotating shaft 14 passes through the through hole of the upper stopper base 10, and the main gear 15 is engaged with each of the driven gears 9.
The mounting points of the two screw rods 8 are respectively positioned at the diameter end points of the two bases, and the upper end and the lower end of each screw rod 8 are nested in the circular grooves of the lower stop base 5 and the upper stop base 10, so that the eccentric rotation of the screw rods is avoided; the installation points of the graduated rod 12 and the polished rod 13 are respectively positioned at the other diameter end points of the two bases, and the two diameters are vertical to each other.
Because the movable bracket 6 is directly contacted with the part and transmits torque, a felt pad 7 is adhered on the contact surface of the movable bracket, so that the surface of the part is protected and mechanical damage is avoided.
The quick-release bolt 3 is a cylinder, the head of the quick-release bolt is provided with a straight notch, embossing treatment is carried out on the side cylindrical surface, friction force is increased, an operator can finish fastening work by using a straight-groove screwdriver or manually, and the quick-release bolt 3 and the rotating nut 4 form a quick-release mechanism.
The stroke of the part is read by the graduation marks on the graduated rod 12 and the graduation pointer on the moving bracket 6, as shown in fig. 3.
The driving mechanism has the working principle that the rotating handle 11 is rotated, the rotating motion is transmitted to the lead screw 8 through the main gear 15 on the rotating shaft 14 and the driven gear 9 in a matching way, the lead screw 8 is in threaded connection with the movable bracket 6, the motion form is further changed from rotating around a shaft to linear motion, the movable bracket 6 is contacted with the part moving part, and the simulation of part unlocking motion is realized.
An aircraft part unlocking stroke measuring method comprises the following steps:
1) loosening the quick-release bolt 3, rotating the left fixing frame 1 and the right fixing frame 2, and opening a clamping area of the part unlocking stroke measuring device; firstly, the right fixing frame 2 is close to a cylindrical surface to be installed, the cylindrical surface is rotated, and the left fixing frame 1 is moved to a required position; fixing the quick-release bolt 3;
2) installing a lower stop base 5 with a moving bracket 6, a felt pad 7, a lead screw 8 and a rotating handle 11 on an airplane part from one side, and rotating the rotating handle 11 to adjust the position of the moving bracket 6 to be positioned below the moving end of the part and have a certain gap with the part;
3) pre-tightening before checking, firstly rotating the rotating handle 11 anticlockwise to enable the moving bracket 6 to slowly approach the moving end of the part, and stopping rotating the rotating handle 11 until the moving bracket and the part are contacted;
4) the checking operation of the unlocking stroke of the part is carried out, the current position data Amm is read through the scale marks engraved on the scale rod 12 and the scale pointer on the movable bracket 6, then the rotating handle 11 is rotated anticlockwise, the movable bracket 6 drives the moving end of the part to move until the rotating handle 11 stops rotating at the unlocking moment, the scale data Bmm is read at the moment, and the unlocking stroke C of the part is B-Amm.
The invention has the beneficial effects that:
(1) the invention has novel structure and convenient installation. 2 parts about with the stroke measuring tool split, centre gripping fixed part and motion measurement part promptly, each part all can easily be installed part measurement area, reduces the installation degree of difficulty, improves work efficiency. And because the overall size design is smaller, and the structure appearance is adapted to the structure of the measured part, the device can ensure the clearance with the surrounding motion mechanism in the measuring process, and avoid damaging the surrounding structure and causing unnecessary loss.
(2) The scale marks on the scale rod 12 can realize quick and visual reading operation by matching with the scale pointer structure on the movable bracket 6. Because the scale is drawn by adopting an imprinting method, the scale line and the reference value are carved on the structure by using equipment such as a laser machine, the scale is clear, the contrast with the background color of the scale line is obvious, and the reading is easier. Compared with the traditional printed scale mark, the novel scale mark can effectively prevent the phenomena of marked line blurring, lack and the like caused by abrasion in the long-time use process.
(3) The invention adopts quick-release clamping, reduces the time for mounting and dismounting the angle ruler and improves the efficiency of unlocking stroke check work. The clamping mechanism is composed of a quick-release bolt 3, a rotating nut 4 and corresponding slotted structures on the left fixing frame 1 and the right fixing frame 2, and the front wheel angle ruler can be detached by unscrewing the quick-release bolt 3. Compared with the mode of fastening screws, the loss phenomenon caused by repeated disassembly and assembly of the quick-release bolt 3 and the rotating nut 4 can be prevented, the repair times of tools are reduced, the service life is prolonged, and the risk of generating redundancy in the working area of the airplane is reduced.
(4) This aircraft part stroke measuring device that unblanks increases felt pad 7 that has the cushioning characteristic with aircraft part direct contact's upper surface, can play the guard action, strengthens the guard action to the aircraft part, prevents in installation and use, and measuring tool's metal part direct contact aircraft spare part and produce the scratch phenomenon, causes surface quality defect, produces the unnecessary loss.
Drawings
FIG. 1 is a schematic view of an overall device for measuring the unlocking stroke of an aircraft part;
FIG. 2 is a schematic view of a clamping mechanism;
fig. 3 is a schematic view of the reading of the unlocking stroke measuring device of the aircraft part.
Wherein: 1-left fixed frame, 2-right fixed frame, 3-quick-release bolt, 4-rotating nut, 5-lower stop base, 6-moving bracket, 7-felt pad, 8-lead screw, 9-driven gear, 10-upper stop base, 11-rotating handle, 12-scale rod, 13-polished rod, 14-rotating shaft, 15-main gear and 16-rotating pin shaft.
Detailed Description
The specific implementation mode and the steps of the invention are as follows:
1) before the measurement of the unlocking stroke of the airplane part, the moving mechanism and the clamping area of the measuring tool in the peripheral area of the part measurement need to be checked, and the working area is ensured to have no redundant objects and mechanical damage.
2) Loosening the quick-release bolt 3, rotating the left fixing frame 1 and the right fixing frame 2, and opening the clamping area of the part unlocking stroke measuring tool.
3) The right fixing frame 2 is firstly close to the cylindrical surface to be installed, and is rotated along the cylindrical surface, and the left fixing frame 1 is moved to the required position.
4) And keeping the position of the measuring tool still, placing the quick-release bolt 3 into a bolt fixing groove on the left fixing frame 1, and fastening the quick-release bolt 3 by using a screwdriver with a straight knife edge or a hand to finish the clamping work of the part unlocking stroke measuring tool. During the screwing process, the rotating nut 4 is required to be positioned in a nut groove on the right fixing frame 2.
5) The lower stop base 5 of the measuring tool with the movable bracket 6, the felt pad 7, the lead screw 8 and the turning handle 11 is arranged on the airplane part from one side, and the position of the movable bracket 6 is adjusted by rotating the turning handle 11 during installation so that the movable bracket is positioned below the moving end of the part and has a certain gap with the part.
6) After the clamping work of the part unlocking stroke measuring tool is finished, the fixing firmness of the stroke measuring tool and the clearance between the stroke measuring tool and a surrounding mechanism are checked, and the stroke measuring tool is ensured not to collide with an airplane movement mechanism in the unlocking process of airplane parts.
7) And (3) pre-tightening before checking, wherein the rotating handle 11 is rotated anticlockwise firstly during checking, so that the moving bracket 6 slowly approaches to the moving end of the part, and the rotating handle 11 is stopped rotating until the moving bracket and the part are contacted.
8) The part unlocking stroke checking work is carried out, the current position data A mm is read through scale marks carved on the scale rod 12 and scale pointers on the movable bracket 6, then the rotating handle 11 is rotated anticlockwise, the movable bracket 6 drives the moving end of the part to move until the rotating handle 11 is stopped rotating at the unlocking moment, the scale data B mm is read at the moment, and at the moment, the unlocking stroke C of the part is equal to B-A mm.
9) After the part unlocking stroke inspection is completed, the lower stop base 5 is separated from the airplane part, then the unlocking stroke measuring tool is kept in a fixed position, the quick-release bolt 3 is unscrewed by using a straight screwdriver or a hand, and after the quick-release bolt 3 is loosened, the quick-release bolt is taken out from the bolt groove on the right fixing frame 2, and at the moment, the unlocking stroke measuring tool is detached from the measuring area.
10) And (4) counting the number of the parts of the unlocking travel measuring tool after the tool is detached, checking the integrity of the tool, and boxing and storing the tool after the tool is qualified.
Claims (6)
1. The device for measuring the unlocking stroke of the airplane part is characterized by comprising a clamping mechanism, a fixed base mechanism and a driving mechanism;
the left fixing frame (1) and the right fixing frame (2) are both in a semicircular ring shape, and are connected through a rotating pin shaft (16) to form a clamping mechanism which is used for clamping an airplane part unlocking stroke measuring tool on the surface of a part shell and then is locked and fixed through a quick-release bolt (3) and a rotating nut (4);
the fixed base mechanism comprises a lower stop base (5), a screw rod (8), a driven gear (9), an upper stop base (10), a scale rod (12) and a polished rod (13); the end part of the clamping mechanism is connected with a lower stop base (5); two lead screws (8), a scale rod (12) and a polish rod (13) are arranged between the lower stop base (5) and the upper stop base (10); the movable bracket (6) is connected to the two lead screws (8) in a threaded manner to reciprocate and is provided with a strip-shaped slot; each lead screw (8) is provided with a driven gear (9); a scale pointer is arranged on the movable bracket (6) and is matched with the scale rod (12) to obtain scales;
the driving mechanism comprises a rotating handle (11), a rotating shaft (14) and a main gear (15), which are connected in sequence; the rotating shaft (14) passes through the through hole of the upper movable base (10), and the main gear (15) is meshed with each driven gear (9).
2. The aircraft part unlocking stroke measuring device according to claim 1, wherein the mounting points of the two lead screws (8) are respectively positioned at one diameter end point of the two bases, the mounting points of the scale rod (12) and the polished rod (13) are respectively positioned at the other diameter end point of the two bases, and the two diameters are perpendicular to each other.
3. The aircraft part unlocking stroke measuring device according to claim 1 or 2, wherein the contact surface of the moving bracket (6) is pasted with a felt pad (7).
4. The aircraft component unlocking stroke measuring device of claim 1 wherein said lower stop base 5 is slotted with an elongated slot for mounting directly to one side of the aircraft component.
5. The aircraft part unlocking stroke measuring device according to claim 1, wherein the quick release bolt (3) is a cylinder, the head of the quick release bolt is provided with a straight notch, and embossing is performed on the side cylinder.
6. An aircraft part unlocking stroke measuring method is characterized by comprising the following steps:
1) loosening the quick-release bolt (3), rotating the left fixing frame (1) and the right fixing frame (2), and opening a clamping area of the part unlocking stroke measuring device; firstly, the right fixing frame (2) is close to a cylindrical surface to be installed, the cylindrical surface is rotated along the right fixing frame, and the left fixing frame (1) is moved to a required position; fixing the quick-release bolt (3);
2) installing a lower stop base (5) with a moving bracket (6), a felt pad (7), a lead screw (8) and a rotating handle (11) on an airplane part from one side, and rotating the rotating handle (11) to adjust the position of the moving bracket (6) to be positioned below the moving end of the part and form a certain gap with the part;
3) pre-tightening before checking, firstly rotating the rotating handle (11) anticlockwise to enable the moving bracket (6) to slowly approach the moving end of the part, and stopping rotating the rotating handle (11) until the moving bracket and the part are contacted;
4) the part unlocking stroke checking work is carried out, current position data Amm are read through scale marks carved on a scale rod (12) and a scale pointer on a movable bracket (6), then the rotary handle (11) is rotated anticlockwise, the movable bracket (6) drives the moving end of the part to move until the rotary handle (11) is stopped at the unlocking moment, scale data B mm is read at the moment, and the unlocking stroke C of the part is B-A mm at the moment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210616717.3A CN115014149A (en) | 2022-06-01 | 2022-06-01 | Airplane part unlocking stroke measuring device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210616717.3A CN115014149A (en) | 2022-06-01 | 2022-06-01 | Airplane part unlocking stroke measuring device and method |
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| CN115014149A true CN115014149A (en) | 2022-09-06 |
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| CN202210616717.3A Pending CN115014149A (en) | 2022-06-01 | 2022-06-01 | Airplane part unlocking stroke measuring device and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115388740A (en) * | 2022-09-09 | 2022-11-25 | 中航沈飞民用飞机有限责任公司 | Skin edge position inspection device and method |
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2022
- 2022-06-01 CN CN202210616717.3A patent/CN115014149A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115388740A (en) * | 2022-09-09 | 2022-11-25 | 中航沈飞民用飞机有限责任公司 | Skin edge position inspection device and method |
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