CN110254744B - Method for adjusting driving and driven wheel linkage mechanism - Google Patents
Method for adjusting driving and driven wheel linkage mechanism Download PDFInfo
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- CN110254744B CN110254744B CN201910414612.8A CN201910414612A CN110254744B CN 110254744 B CN110254744 B CN 110254744B CN 201910414612 A CN201910414612 A CN 201910414612A CN 110254744 B CN110254744 B CN 110254744B
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- cabin door
- connecting rod
- hub
- movable cabin
- point
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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
- B64F5/10—Manufacturing or assembling aircraft, e.g. jigs therefor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/80—Energy efficient operational measures, e.g. ground operations or mission management
Abstract
A method for adjusting a driving wheel and a driven wheel linkage mechanism is characterized in that a laser pen is installed on a driving wheel hub, and the axial direction of the laser pen is vertical to the rotating plane of the driving wheel hub; sticking a laser projection plate on a driven wheel hub, and manufacturing a theoretical projection point on the projection plate; observing the deviation between the actual projection point and the theoretical projection point of the laser pen on the projection plate by opening and closing the movable cabin door control mechanism; and the actual projection point is coincided with the theoretical projection point by adjusting the total length of the steel cable and the tension of the steel cable.
Description
Technical Field
The application relates to the technical field of aviation, in particular to a method for adjusting a driving wheel linkage mechanism and a driven wheel linkage mechanism.
Background
The large-span multi-connecting-rod steel cable connecting driving and driven wheel linkage mechanism is mainly used for opening and closing a movable assembly (part) of an airplane relative to an airplane body, and generally comprises a hydraulic actuator cylinder, a driving hub, a driven hub, a switching rocker arm, an adjustable pull rod, a steel cable and the like. The driving hub is a movable group (part) and a main bearing link of a power input system, and the mechanism belongs to a linkage mechanism, so that the large-size group (part) is stressed asynchronously and unevenly in the closing process due to asynchronous rotation of the driving hub and the driven hub or inaccurate length adjustment of a pull rod, the matching precision with a machine body is further influenced, and the large-size group (part) is mainly represented as a gap between the large-size group (part) and the machine body, a step difference or an over-difference of the tension of a steel cable. At present, in the practical process, although the reference ranges of the length of the relatively stable pull rod, the length of the actuating cylinder, the length of the steel cable and the tension, the process flow and the control key point of installation and debugging are determined according to the development experience, only the importance of synchronization adjustment in the rotating process of the multiple hubs is emphasized, but no reliable and curing process method or means is used for adjusting the jump difference, the gap and the steel cable tension of the movable door.
Disclosure of Invention
The application overcomes the defects that the synchronism of a hub, a pull rod, an actuating cylinder and the tension of a steel cable are debugged only by empirical values in the prior art, and provides a process method which can be used for actual operation and can ensure that the step difference, the gap and the tension of the steel cable of a final movable cabin door meet engineering requirements.
In a first aspect, the application provides a method for adjusting a linkage mechanism of a driving wheel and a driven wheel, wherein a laser pen is arranged on a driving wheel hub, and the axial direction of the laser pen is vertical to a rotating plane of the driving wheel hub;
sticking a laser projection plate on a driven wheel hub, and manufacturing a theoretical projection point on the projection plate;
observing the deviation between the actual projection point and the theoretical projection point of the laser pen on the projection plate by opening and closing the movable cabin door control mechanism;
and the actual projection point is coincided with the theoretical projection point by adjusting the total length of the steel cable and the tension of the steel cable.
Optionally, before the laser pointer is installed on the driving hub, the method further includes:
and installing parts of the mechanism to work.
Optionally, the working of the parts of the installation mechanism specifically includes:
installing a movable cabin door control mechanism according to a preset flow;
controlling the parallelism of the driving hub and the driven hub and the plane of the airplane frame;
the distance between the machine body and the movable cabin door is controlled within a preset safety distance, so that the cabin door and the machine body have a safety clearance in the movement process of the linkage mechanism.
Optionally, after the distance between the control body and the movable cabin door is within a preset safety distance, the method includes:
the total length of the hydraulic actuator cylinder, the upper connecting rod, the lower connecting rod, the small connecting rod and the steel cable is adjusted, so that the connecting point of the upper connecting rod of the upper movable cabin door and the driving wheel hub, the connecting point of the upper connecting rod of the upper movable cabin door and the driven wheel hub, the connecting point of the lower connecting rod of the lower movable cabin door and the driving wheel hub, and the connecting point of the lower connecting rod of the lower movable cabin door and the driven wheel hub are in a preset range;
optionally, after adjusting the total length of the hydraulic ram, the upper link, the lower link, the small link, and the wire rope, the method further comprises:
the self-stress of the cable is eliminated by opening and closing the movable hatch operating mechanism.
Optionally, after the actual projection point coincides with the theoretical projection point, the method further includes:
when the driving hub and the driven hub rotate synchronously, the total length of the hydraulic actuator cylinder, the upper connecting rod, the lower connecting rod and the small connecting rod is adjusted by the steel cable, so that the connecting point of the upper connecting rod of the upper movable cabin door and the driving hub, the connecting point of the upper connecting rod of the upper movable cabin door and the driven hub, the connecting point of the upper connecting rod of the lower movable cabin door and the driving hub and the connecting point of the upper connecting rod of the lower movable cabin door and the driven hub are in a preset range.
Optionally, after the adjusting the total length of the hydraulic ram, the upper connecting rod, the lower connecting rod and the small connecting rod and the steel cable, the method further comprises:
and checking that the step difference between the movable cabin door and the fuselage and the tension of the steel cable meet preset requirements, and filing the outer contour of the movable cabin door to ensure that the gap between the movable cabin door and the fuselage meets the preset requirements.
Optionally, the mounting position of the laser pen is selected to be far away from the rotation center of the driving wheel.
In summary, the present application provides a process for adjusting a linkage mechanism of a driving wheel and a driven wheel connected by a large-span multi-link steel cable, which defines the adjustment reference of the linkage mechanism in the debugging process, reduces the workload caused by repeatedly adjusting a plurality of variables such as a pull rod, an actuator cylinder length and the total length of the steel cable in the debugging process of a movable cabin door mechanism due to a plurality of mechanism mutual influence factor variables, shortens the debugging period of the movable cabin door mechanism, meets the requirement of the tension of the steel cable of the linkage mechanism, and improves the final fit clearance and step quality of the movable cabin door and the machine body.
Drawings
FIG. 1 is a schematic view of a hatch operating mechanism provided herein;
FIG. 2 is a side view of the drive wheel of the hatch mechanism provided in the present application (view A in FIG. 1);
FIG. 3 is a side view of the driven wheel of the hatch door mechanism provided by the present application (view B in FIG. 1);
FIG. 4 is a flow chart of the installation of the hatch and the operating mechanism provided by the present application;
FIG. 5 is a schematic view of a laser pointer provided herein;
FIG. 6 is a schematic view of a laser projection plate provided for the present application;
figure 7 is a flow chart of a process for debugging a hatch operating mechanism provided herein.
Wherein: 1. the emergency control device comprises an emergency spring, 2 a steel cable, 3 an upper cabin door hinge joint, 4 a driving hub, 5 a driven hub, 6 a hydraulic actuator, 7 a swing rod, 8 an upper cabin door, 9a lower cabin door, 10 a machine body, 11 a lower connecting rod, 12 an upper connecting rod, 13 a lower cabin door hinge joint, 14 a switching rocker arm, 15 a laser pen mounting point, 16 a small connecting rod, 17 an air spring, 18 a theoretical projection point, 19a lower cabin door mechanism dead point and 19b an upper cabin door mechanism dead point.
Detailed Description
Example one
The application is realized by the following technical scheme:
a, completing the installation of the cabin door control mechanism according to the flow; (see FIG. 1)
B, the parallelism of the active hub and the driven hub and the plane of the airplane frame is mainly controlled in the installation process;
c, roughly trimming the allowance between the machine body and the movable cabin door to ensure that the movable cabin door and the machine body have a safety clearance in the movement process of the linkage mechanism;
d, primarily adjusting the total length of the hydraulic actuating cylinder, the upper connecting rod, the lower connecting rod, the small connecting rod and the steel cable to ensure that dead points of the operating mechanisms of the upper and lower movable cabin doors are within a theoretical requirement range, ensuring that the linkage mechanism can normally move in the opening and closing processes, and eliminating the stress of the steel cable by the aid of a plurality of retracting and releasing mechanisms; (see FIG. 3)
E, selecting a laser pen mounting point 15 on the driving wheel, and requiring the axial direction of the laser pen to be vertical to the rotating plane of the hub of the driving wheel; (the mounting position of the laser pen is selected to be the farthest position from the rotation center of the driving wheel in principle, see FIGS. 3 and 5)
F, sticking a laser projection plate on the driven wheel hub, and manufacturing a theoretical projection point on the projection plate; (see FIG. 6)
G, a linkage mechanism of the retractable movable cabin door observes the deviation change condition of the actual projection point projected to the rear hub by the laser and the theoretical projection point;
h, fine-adjusting the total length and the tension of the steel cable to enable the actual projection point to be coincident with the theoretical projection point;
i, after the driving wheel hub and the driven wheel hub are ensured to be synchronous, the hydraulic actuator cylinder, the upper connecting rod, the lower connecting rod and the small connecting rod are finely adjusted to ensure the position range of a dead point by the total length, the step difference between the movable cabin door and the machine body and the tension of the steel cable are checked, and finally the gap is repaired.
Example two
An adjustment and inspection apparatus according to the present application is described in detail with reference to the accompanying drawings of figures 1-7:
the application provides a technological method for adjusting a linkage mechanism for connecting a driving wheel and a driven wheel by a large-span multi-connecting-rod steel cable, which is mainly implemented through the following processes:
according to the figure 1, the installation and connection of a driving hub 4, a driven hub 5, a switching rocker arm 14, a hydraulic actuating cylinder 6, an emergency spring 1, a steel cable 2, an upper cabin door 2, a swing rod 7, a gas spring 17, a lower cabin door 9, an upper cabin door hinge joint 3 and a lower cabin door hinge joint 13 are completed in a linkage mechanism. The preparation work before the adjustment of the linkage mechanism includes:
a) the machine body is in a jacking state, so that the machine body and the linkage mechanism are in a free state;
b) the linkage mechanism actuating cylinder 6 is connected with a compression test bed to ensure that a mechanism power source is provided;
c) all moving or rotating components are required after installation, so that the components cannot collide with structures or equipment components, and proper movement gaps are guaranteed;
d) after the driving hub 4 and the driven hub 5 are installed, the parallelism between the rotating surface of the hub and the plane of the machine body frame is required to be checked and adjusted, so that the steel cable is always stressed on the bottom surface of the steel-plastic clamping groove of the hub in the rotating process of the hub;
e) before the actuating cylinder 6 is connected with the driving wheel hub 4, the total length of the adjustable actuating cylinder 6 is checked and adjusted to be within the design tolerance range of the total length, and then the hydraulic vehicle is started to enable the single side of the actuating cylinder 6 to be opened to the maximum stroke, and then the actuating cylinder is connected with the driving wheel hub;
f) and marking measurement points of gaps and step differences around the upper cabin door 8 and the lower cabin door 9 for detecting the changes of the gaps and the step differences in the adjusting process.
The cabin door linkage mechanism has the following adjustment process:
the process allowance of the machine body is primarily filed on the shapes of the upper cabin door 8 and the lower cabin door 9, so that the cabin door does not interfere with the machine body in the closing process, and a relative safe clearance value is ensured, wherein the clearance value is not more than a theoretical clearance value. The lengths of the upper connecting rod 12 and the lower connecting rod 11 are initially adjusted to enable the step differences of the upper cabin door 8, the lower cabin door 9 and the machine body 10 to be within a theoretical requirement range, and the step differences are recorded according to the cabin door marks for comparison of subsequent step difference changes. The length of the small connecting rod 16 is adjusted initially, so that connecting lines of connecting points of the switching rocker arm 14 and the small connecting rod 16, and connecting lines of connecting points of the lower connecting rod 11 and the lower cabin door 9 are lower than dead points 19a and 19b and meet the theoretical requirement range; the lengths of the upper connecting rod 12, the lower connecting rod 11, the small connecting rod 16, the actuating cylinder 6 and the steel cable 2 are adjusted, so that the connecting line of the rotation centers of the hubs (4 and 5) and the connecting point of the upper connecting rod 12 and the oscillating bar 7 is lower than a dead point 19b and is within a theoretical range. The linkage mechanism is repeatedly retracted and extended, and the self stress of the steel cable 2 is fully released, so that the tension of the steel cable tends to be stable. And finding an actual projection point on a projection plate of the driven hub 5 by using a laser pen beam arranged on the driving hub 4, recording the actual deviation from the theoretical projection point, and adjusting the length and the tension of the steel cable 2 according to the deviation position to enable the actual projection point to coincide with the theoretical projection point 18. The wire rope 2 is tension checked. And checking and fine-adjusting the dead point size of the operating mechanisms of the upper cabin door 8 and the lower cabin door 9 again. And (3) checking the step differences of the upper cabin door 8, the lower cabin door 9 and the machine body 10, if a large deviation occurs, repeating the retracting and releasing of the linkage mechanism to release the tension of the steel cable 2 again until the step differences meet the requirements. The wire rope 2 is tension checked. After the step difference and the tension meet the required curing state, the matching circumference of the machine body 10 and the cabin door is refined, and the gap is ensured to meet the engineering requirement.
In conclusion, the application belongs to the technical field of aviation, and relates to a technological method for adjusting a linkage mechanism for connecting a driving wheel and a driven wheel by a large-span multi-connecting-rod steel cable. The traditional debugging method of the linkage mechanism is optimized and improved, the plane of the hub and the plane of the machine body frame are checked and corrected when the driving hub and the driven hub are installed, and the rotation synchronism detection device is established between the driving hub and the driven hub, so that the variable factors of the linkage mechanism in the debugging process are reduced, and the debugging complexity of the linkage mechanism is simplified. The method overcomes the defect that the movable part and the machine body are not matched coordinately due to the fact that the driving hub and the driven hub rotate asynchronously in the traditional process method, solidifies the adjustment reference by adding the means of synchronous inspection and adjustment of the driving hub and the driven hub in the debugging process, and makes up the defect that each influence variable is continuously adjusted in the traditional method.
Claims (8)
1. A method for adjusting a driving wheel linkage mechanism and a driven wheel linkage mechanism is characterized in that:
a laser pen is arranged on the driving hub, and the axial direction of the laser pen is vertical to the rotating plane of the driving hub;
sticking a laser projection plate on a driven wheel hub, and manufacturing a theoretical projection point on the projection plate;
observing the deviation between the actual projection point and the theoretical projection point of the laser pen on the projection plate by opening and closing the movable cabin door control mechanism;
and the actual projection point is coincided with the theoretical projection point by adjusting the total length of the steel cable and the tension of the steel cable.
2. The method of claim 1, wherein: before the laser pointer is installed on the driving hub, the method further comprises the following steps:
and installing the components of the mechanism to work.
3. The method of claim 2, wherein: the installation mechanism spare part work specifically includes:
installing a movable cabin door control mechanism according to a preset flow;
controlling the parallelism of the driving hub and the driven hub and the plane of the airplane frame;
the distance between the machine body and the movable cabin door is controlled within a preset safety distance, so that the cabin door and the machine body have a safety clearance in the movement process of the linkage mechanism.
4. The method of claim 3, wherein: after the distance between the control body and the movable cabin door is within a preset safety distance, the method comprises the following steps:
the total length of the hydraulic actuator cylinder, the upper connecting rod, the lower connecting rod, the small connecting rod and the steel cable is adjusted, so that the connecting point of the upper connecting rod of the upper movable cabin door and the driving wheel hub, the connecting point of the upper connecting rod of the upper movable cabin door and the driven wheel hub, the connecting point of the lower connecting rod of the lower movable cabin door and the driving wheel hub, and the connecting point of the lower connecting rod of the lower movable cabin door and the driven wheel hub are in a preset range.
5. The method of claim 4, wherein: after adjusting the total length of the hydraulic ram, the upper link, the lower link, the small link, and the wire rope, the method further comprises:
the self-stress of the cable is eliminated by opening and closing the movable hatch operating mechanism.
6. The method of claim 3, wherein: after the actual projection point coincides with the theoretical projection point, the method further includes:
when the driving hub and the driven hub rotate synchronously, the total length of the hydraulic actuator cylinder, the upper connecting rod, the lower connecting rod and the small connecting rod is adjusted by the steel cable, so that the connecting point of the upper connecting rod of the upper movable cabin door and the driving hub, the connecting point of the upper connecting rod of the upper movable cabin door and the driven hub, the connecting point of the upper connecting rod of the lower movable cabin door and the driving hub and the connecting point of the upper connecting rod of the lower movable cabin door and the driven hub are in a preset range.
7. The method of claim 6, wherein: after the adjusting the total length of the hydraulic cylinder, the upper connecting rod, the lower connecting rod and the small connecting rod and the steel cable, the method further comprises the following steps:
and checking that the step difference between the movable cabin door and the fuselage and the tension of the steel cable meet preset requirements, and filing the outer contour of the movable cabin door to ensure that the gap between the movable cabin door and the fuselage meets the preset requirements.
8. The method of claim 3, wherein:
the installation position of the laser pen is selected to be far away from the rotation center of the driving wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910414612.8A CN110254744B (en) | 2019-05-17 | 2019-05-17 | Method for adjusting driving and driven wheel linkage mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910414612.8A CN110254744B (en) | 2019-05-17 | 2019-05-17 | Method for adjusting driving and driven wheel linkage mechanism |
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| Publication Number | Publication Date |
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| CN110254744A CN110254744A (en) | 2019-09-20 |
| CN110254744B true CN110254744B (en) | 2022-08-09 |
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| CN201910414612.8A Active CN110254744B (en) | 2019-05-17 | 2019-05-17 | Method for adjusting driving and driven wheel linkage mechanism |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP4416062B2 (en) * | 2000-02-29 | 2010-02-17 | 三ツ星ベルト株式会社 | Belt measuring device |
| CN103029836A (en) * | 2011-10-08 | 2013-04-10 | 天津职业技术师范大学 | Information rapid access and emergency rescue airdrop robot system in disaster environment |
| FR3039450B1 (en) * | 2015-07-29 | 2017-08-11 | Airbus Operations Sas | TOOL SUPPORT SYSTEM |
| CN205571459U (en) * | 2016-03-22 | 2016-09-14 | 杭州振华钣金有限公司 | Accurate rocking arm brill to drill bit location |
| CN109533392A (en) * | 2018-12-07 | 2019-03-29 | 西安飞机工业（集团）有限责任公司 | A kind of antenna cover inner surface foil gauge patch location determines method |
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