CN114987795B - Device and method for measuring extension of piston rod of aircraft actuator cylinder - Google Patents
Device and method for measuring extension of piston rod of aircraft actuator cylinder Download PDFInfo
- Publication number
- CN114987795B CN114987795B CN202210616783.0A CN202210616783A CN114987795B CN 114987795 B CN114987795 B CN 114987795B CN 202210616783 A CN202210616783 A CN 202210616783A CN 114987795 B CN114987795 B CN 114987795B
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- piston rod
- clamping ring
- actuating cylinder
- measuring
- cylinder cover
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000005259 measurement Methods 0.000 abstract description 10
- 230000000007 visual effect Effects 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 239000003550 marker Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 210000000078 claw Anatomy 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
Classifications
-
- 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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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Transportation (AREA)
- Aviation & Aerospace Engineering (AREA)
- Length-Measuring Instruments Using Mechanical Means (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention belongs to the technical field of debugging and measurement of aircrafts, and provides a device and a method for measuring the extension of a piston rod of an aircraft actuator cylinder. The device for measuring the extension amount of the piston rod of the aircraft actuating cylinder comprises an opening type actuating cylinder cover clamping ring, a piston rod clamping ring, a sliding rail, a sliding block, a fixed support and a digital vernier caliper; according to the invention, an operator does not need to manually align a measuring tool, only a digital vernier caliper is required to be tightly attached to a sliding block and a fixed support, and the digital vernier caliper is fixed by using a caliper jackscrew 10, so that the parallelism of the digital vernier caliper and a piston rod is ensured to the greatest extent, and the measuring accuracy is improved; the marking pen is not needed to mark the measuring boundary, so that the pollution of the surface of the piston rod and the medium in the actuating cylinder is avoided, the service life and the working performance are prolonged, and the measuring error caused by the marking width of the marking pen is avoided; the measurement error caused by the visual error of an operator is eliminated to the maximum extent, the average value is not required to be obtained through multiple measurements, the workload is reduced, and the working efficiency is greatly improved.
Description
Technical Field
The invention relates to the technical field of debugging and measurement of aircrafts, in particular to a device and a method for measuring the extension of a piston rod of an aircraft actuator cylinder.
Background
Since the actuator cylinder is the main actuating mechanism of each control part of the aircraft, the working characteristics of the actuator cylinder have important significance for the running track of each control part of the aircraft.
The extension amount of the piston rod from the dead point in the opening state is one of important working parameters of the actuator cylinder, and the piston rod can be effectively prevented from impacting the actuator cylinder, so that the actuator cylinder is prevented from being mechanically damaged, and the service life of the actuator cylinder is prolonged. The current method for measuring the extension of the piston rod of the actuator cylinder mainly comprises the steps of manually marking a mark pen on the piston rod by an operator, and then visually observing a steel plate ruler to determine the value of the residual stroke. The defects mainly include the following points:
(1) Because the surface of the piston rod is extremely smooth, the marker pen cannot be used for clearly marking, and once the pen oil is excessively smeared, the surface of the piston rod and the medium inside the actuating cylinder can be polluted;
(2) In the measuring process, the marking width of the marker pen is about 1mm, an operator is difficult to find an effective measuring standard, the operator needs to manually adjust the steel plate ruler to be parallel to the piston rod, the parallelism is difficult to ensure, and the accuracy of a measuring result is low
(3) In the reading process, operators need to read numerical values from the common steel plate ruler by naked eyes, and because of the influence of the graduation value of the graduation dial and the visual error of operators, the measurement error can be reduced by multiple times of measurement, so that the repeatability of measurement work is high and the efficiency is low.
Disclosure of Invention
In view of the above, an apparatus and method for measuring the extension of the piston rod of an aircraft ram is provided. The device integrates the digital display device and the clamping mechanism, so that the degree of automation is high, the accuracy and operability are improved, and the problem of difficulty in the process of measuring the extension amount of the piston rod is solved to the greatest extent.
The technical scheme of the invention is as follows: the device for measuring the extension amount of the piston rod of the aircraft actuator cylinder comprises an opening type actuator cylinder cover clamping ring, a piston rod clamping ring, a sliding rail, a sliding block 6, a fixed support 7 and a digital vernier caliper 9;
The open type actuating cylinder cover clamping ring is connected by an actuating cylinder cover upper clamping ring 1 and an actuating cylinder cover lower clamping ring 2 through an actuating cylinder cover clamping ring fixing bolt 14 and sleeved on the actuating cylinder cover; the piston rod clamping ring is connected by a piston rod upper clamping ring 3 and a piston rod lower clamping ring 4 through a piston rod clamping ring fixing bolt 13 and sleeved on a piston rod nut; the actuating cylinder cover upper clamping ring 1 is provided with a double-hole lug, the piston rod upper clamping ring 3 is provided with a single-hole lug, the holes of the actuating cylinder cover upper clamping ring 1 and the piston rod upper clamping ring 3, which are positioned at the same horizontal height, are used for the long sliding rail 5 to pass through, the actuating cylinder cover upper clamping ring 1 is fixed on the long sliding rail 5 through a sliding rail fixing nut 15, and the piston rod upper clamping ring 3 reciprocates on the long sliding rail 5; the fixed support 7 and the sliding block 6 are sleeved on the long sliding rail 5 and positioned between the actuating cylinder cover clamping ring and the piston rod clamping ring, and the sliding block 6 is fixed through a sliding block jackscrew 12; one end of the short slide rail 8 is fixed in the other hole of the clamping ring 1 on the actuating cylinder cover through a slide rail fixing nut 15, and the other end of the short slide rail passes through the fixed support 7 and is fixed through a support jackscrew 11;
Grooves are formed in the sliding block 6 and the fixed support 7, and the front teeth and the rear teeth of the digital vernier caliper 9 are respectively fixed, wherein the rear teeth of the digital vernier caliper 9 are fixed through caliper jackscrews 10.
The short slide rail 8 is positioned above the long slide rail 5 and is parallel to the long slide rail.
Felt pad structures are adhered to the surfaces of the opening type actuating cylinder cover clamping ring and the piston rod clamping ring, so that the metal support is prevented from scratching the surface of the operating rod, and the opening type actuating cylinder cover clamping ring and the piston rod clamping ring have the function of increasing friction force.
The method for measuring the extension of the piston rod of the aircraft actuator cylinder specifically comprises the following steps:
1) The operator shakes the handle of the manual opening mechanism to slowly open the movable canopy; when a signal lamp for closing a cockpit lid on a display panel is turned from on to off, the piston rod extension measuring device of the aircraft actuating cylinder is arranged on the actuating cylinder cover and a piston rod nut;
2) A digital display vernier caliper 9 is arranged, and a caliper jackscrew 10 is screwed down to be fixed on a fixed support 7; tightening a support jackscrew 11 to fix the fixed support 7;
3) Turning on a power key of the digital vernier caliper 9, and returning to zero;
4) The operator continues to shake the handle of the manual opening mechanism and slowly opens the movable canopy until the movable canopy is completely opened;
5) And opening the reading on the digital vernier caliper 9 to obtain the extension of the piston rod from the dead point of the opening state as A mm.
The invention has the beneficial effects that:
(1) The invention has novel appearance structure, small volume and light weight, can adjust the position of the digital display vernier caliper according to different operation spaces, is suitable for measuring the extension quantity of the piston rod of different actuating cylinders of each model, is more beneficial to the debugging work of an airplane, expands the measuring range and improves the practicability and the convenience.
(2) Compared with the traditional measuring method, the invention does not need a marker pen to mark the measuring boundary, avoids the pollution of the surface of a piston rod and the medium in the actuating cylinder, improves the service life and the working performance of the actuating cylinder operated by the canopy, optimizes the measuring working environment and simultaneously avoids the measuring error caused by the marking width of the marker pen.
(3) According to the invention, an operator does not need to manually align a measuring tool, only the digital vernier caliper 9 is required to be tightly attached to the sliding block 6 and the fixed support 7, and the digital vernier caliper 9 and the piston rod are fixed by the caliper jackscrew 10, so that the parallelism of the digital vernier caliper 9 and the piston rod is ensured to the greatest extent, and the measuring accuracy is improved.
(4) The invention has the digital display function, can set a relative zero position, can set the arbitrary initial length of the vernier caliper to be 0mm by pressing one key, furthest eliminates measurement errors caused by visual errors of operators, does not need to measure for a plurality of times to calculate the average value, reduces the workload of measurement, greatly improves the working efficiency, and furthest improves the precision of the debugging measurement of the aircraft while ensuring that the technical requirements of the aircraft production are met.
Drawings
FIG. 1 is a schematic view of an overall aircraft ram piston rod extension measuring device;
FIG. 2 is a partial schematic view of an aircraft ram piston rod extension measuring device;
Fig. 3 is a schematic installation view of an aircraft ram piston rod extension measuring device.
In the figure: the device comprises an upper clamping ring of a 1-actuating cylinder cover, a lower clamping ring of a 2-actuating cylinder cover, an upper clamping ring of a 3-piston rod, a lower clamping ring of a 4-piston rod, a 5-long slide rail, a 6-slide block, a 7-fixed support, an 8-short slide rail, a 9-digital vernier caliper, a 10-caliper jackscrew, a 11-support jackscrew, a 12-slide block jackscrew, a 13-piston rod clamping ring fixing bolt, a 14-actuating cylinder cover clamping ring fixing bolt and a 15-slide rail fixing nut.
Detailed Description
The specific implementation mode and the steps of the invention are as follows:
1) The operator takes off the external handle of the control cabin cover from the claw, puts the external handle in an open position, opens the movable cabin cover and enters the cabin;
2) The operator manipulates the inner handle of the canopy and is placed at the 'closed' position, and when the 'closed canopy' signal lamp on the display panel is turned from off to on, the inner handle is placed at the 'neutral' position;
3) The operator shakes the handle of the manual opening mechanism to slowly open the movable canopy;
4) When the signal lamp of closing the cabin cover on the display panel is changed from being on to off, the piston rod extension measuring device of the aircraft actuating cylinder is arranged on the actuating cylinder cover and the piston rod nut, and the detail is shown in figure 3;
5) A digital display vernier caliper 9 is arranged, and a caliper jackscrew 10 is screwed down to be fixed on a fixed support 7;
6) Tightening a support jackscrew 11 to fix the fixed support 7;
7) Opening a power key of the digital vernier caliper 9 and pressing a return-to-zero key;
8) The operator continues to shake the handle of the manual opening mechanism, and slowly opens the movable canopy to an opening stop point;
9) Observing and opening the reading on the digital display screen on the digital display vernier caliper 9, namely that the extension amount of the piston rod from the opening state dead point is A mm;
10 The device for measuring the extension amount of the piston rod of the aircraft actuator cylinder is disassembled and is properly stored;
11 The operator leaves the cabin and closes the movable canopy.
Claims (4)
1. The device for measuring the extension amount of the piston rod of the aircraft actuator cylinder is characterized by comprising an opening type actuator cylinder cover clamping ring, a piston rod clamping ring, a sliding rail, a sliding block (6), a fixed support (7) and a digital vernier caliper (9);
The opening type actuating cylinder cover clamping ring is connected by an actuating cylinder cover upper clamping ring (1) and an actuating cylinder cover lower clamping ring (2) through an actuating cylinder cover clamping ring fixing bolt (14) and sleeved on the actuating cylinder cover; the piston rod clamping ring is connected by a piston rod upper clamping ring (3) and a piston rod lower clamping ring (4) through a piston rod clamping ring fixing bolt (13) and sleeved on the piston rod nut; the actuating cylinder cover upper clamping ring (1) is provided with a double-hole lug, the piston rod upper clamping ring (3) is provided with a single-hole lug, holes, which are positioned at the same horizontal height, of the actuating cylinder cover upper clamping ring (1) and the piston rod upper clamping ring (3) are used for the long sliding rail (5) to pass through, the actuating cylinder cover upper clamping ring (1) is fixed on the long sliding rail (5) through a sliding rail fixing nut (15), and the piston rod upper clamping ring (3) reciprocates on the long sliding rail (5); the fixed support (7) and the sliding block (6) are sleeved on the long sliding rail (5) and positioned between the actuating cylinder cover clamping ring and the piston rod clamping ring, and the sliding block (6) is fixed through a sliding block jackscrew (12); one end of the short slide rail (8) is fixed in the other hole of the clamping ring (1) on the actuating cylinder cover through a slide rail fixing nut (15), and the other end of the short slide rail passes through the fixed support (7) and is fixed through a support jackscrew (11);
Grooves are formed in the sliding block (6) and the fixed support (7), and the front teeth and the rear teeth of the digital vernier caliper (9) are respectively fixed, wherein the rear teeth of the digital vernier caliper (9) are fixed through caliper jackscrews (10).
2. The device for measuring the extension of the piston rod of an aircraft actuator according to claim 1, characterized in that the short slide (8) is positioned above the long slide (5) and parallel to the latter.
3. The device for measuring the extension amount of the piston rod of the aircraft actuator according to claim 1 or 2, wherein the surfaces of the opening type actuator cap snap ring and the piston rod snap ring are adhered with felt structures.
4. An aircraft actuator piston rod extension measuring method, characterized in that the aircraft actuator piston rod extension measuring device according to any one of claims 1-3 is adopted, and the method specifically comprises the following steps:
1) The operator shakes the handle of the manual opening mechanism to slowly open the movable canopy; when a signal lamp for closing a cockpit lid on a display panel is turned from on to off, the piston rod extension measuring device of the aircraft actuating cylinder is arranged on the actuating cylinder cover and a piston rod nut;
2) A digital display vernier caliper (9) is arranged, and a caliper jackscrew (10) is screwed to be fixed on a fixed support (7); tightening a support jackscrew (11) to fix the fixed support (7);
3) Turning on a power key of a digital vernier caliper (9) and returning to zero;
4) The operator continues to shake the handle of the manual opening mechanism and slowly opens the movable canopy until the movable canopy is completely opened;
5) And opening a reading on the digital display vernier caliper (9), namely that the extension amount of the piston rod from the opening state dead point is A mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210616783.0A CN114987795B (en) | 2022-06-01 | 2022-06-01 | Device and method for measuring extension of piston rod of aircraft actuator cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210616783.0A CN114987795B (en) | 2022-06-01 | 2022-06-01 | Device and method for measuring extension of piston rod of aircraft actuator cylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114987795A CN114987795A (en) | 2022-09-02 |
| CN114987795B true CN114987795B (en) | 2024-07-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210616783.0A Active CN114987795B (en) | 2022-06-01 | 2022-06-01 | Device and method for measuring extension of piston rod of aircraft actuator cylinder |
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| Country | Link |
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| CN (1) | CN114987795B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105927617A (en) * | 2016-06-12 | 2016-09-07 | 广州飞机维修工程有限公司 | General test platform for large hydraulic actuator cylinder of airplane |
| CN111452995A (en) * | 2020-05-15 | 2020-07-28 | 沈阳飞机工业（集团）有限公司 | Airplane course control mechanism stroke measuring equipment and using method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211711120U (en) * | 2020-03-06 | 2020-10-20 | 张一硕 | Stroke test device of aircraft engine actuating cylinder |
| CN112146538A (en) * | 2020-10-15 | 2020-12-29 | 卜少明 | Full-rail type railhead abrasion measuring device |
| CN215261543U (en) * | 2021-06-07 | 2021-12-21 | 惠阳航空螺旋桨有限责任公司 | A device for measuring blade geometry |
-
2022
- 2022-06-01 CN CN202210616783.0A patent/CN114987795B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105927617A (en) * | 2016-06-12 | 2016-09-07 | 广州飞机维修工程有限公司 | General test platform for large hydraulic actuator cylinder of airplane |
| CN111452995A (en) * | 2020-05-15 | 2020-07-28 | 沈阳飞机工业（集团）有限公司 | Airplane course control mechanism stroke measuring equipment and using method |
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| Publication number | Publication date |
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| CN114987795A (en) | 2022-09-02 |
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