Auxiliary measuring tool for residual stroke of pincerlike coordination valve
By designing a clamp-type coordinated valve residual travel auxiliary measurement tool, the problems of instability and safety hazards in multi-person collaborative measurement were solved, and efficient and stable measurement results were achieved by a single person.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHAANXI AIRCRAFT CORPORATION
- Filing Date
- 2024-12-30
- Publication Date
- 2026-04-10
AI Technical Summary
In existing technologies, measuring the remaining stroke of a coordinated valve requires the collaboration of multiple people, and the measurement process is unstable, which can easily damage finished products and operators, posing safety hazards.
A clamp-type coordinated valve residual travel auxiliary measurement tool was designed, including a Π-type clamp mouth and a U-type clamp mouth. The clamp arm structure connected by locking slots and pins enables stable measurement by a single person.
This technology enables a single person to independently measure the remaining travel of the coordinated valve, improving the stability and safety of the measurement and reducing working time and human resource waste.
Smart Images
Figure CN224108749U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the field of aviation hydraulic system control technology, especially relates to a clamp type coordination valve residual travel auxiliary measuring tool. BACKGROUND
[0002] The coordination valve is used to control the order of oil flow in the system oil circuit, thereby ensuring that the operation is performed according to a certain procedure. The coordination valve pressed by the top rod when the front landing gear is lowered controls the opening or closing of the front landing gear door. The coordination valve pressed when the main landing gear door is opened controls the opening or closing of the landing gear door. In the normal working mode, when the pilot operates the landing gear extension and retraction switch to the "retracted" or "extended" position, the hydraulic electromagnetic valve is powered on, the landing gear door opening oil circuit is connected, and the coordination valve switching oil circuit is pressed when the door is opened to the position, the landing gear is lowered or retracted, and the door is closed. The normal operation of the coordination valve directly affects whether the landing gear can be lowered or retracted, and the residual travel of the coordination valve top rod is too short, which can cause damage to the valve, the residual travel is too long, which can cause the valve to not be connected or the safety travel to be insufficient, causing the oil circuit not to switch, which can cause the landing gear to not be lowered or retracted, and the compression force of the coordination valve compression rod is large, which is not easy to operate, and the product and the operator can be damaged during measurement, causing quality and safety problems. SUMMARY
[0003] The utility model provides a kind of clamp type coordination valve residual travel auxiliary measuring tool, it is convenient to measure residual travel, improve the efficiency and reliability, security of this work.
[0004] Technical scheme: a kind of clamp type coordination valve residual travel auxiliary measuring tool, comprising:
[0005] Π type mouthful 9 and U type mouthful 11, Π type mouthful 9 rear end is connected with first arm 10, U type mouthful 11 rear end is connected with second arm 12, first arm 10 is hinged with second arm 12.
[0006] First arm 10 is engaged with the second locking slot 14 in the handle position of second arm 12 by the first locking slot 13 in the handle position, and the first locking slot 13 and the second locking slot 14 form locking force by engagement.
[0007] The contact surface of the first locking slot 13 and the second locking slot 14 is engaged by bevel gear.
[0008] The first locking slot 13 is pinned in the handle position of the first arm 10 by the first pin 15.
[0009] The second locking slot 14 is pinned in the handle position of the second arm 12 by the second pin 16.
[0010] The U-shaped tongs mouth 11 clamps the coordinated valve shell waist, the Π-shaped tongs mouth 9 clamps the coordinated valve adjusting top rod locking nut, the first tongs arm 10 and the second tongs arm 12 are folded to drive the Π-shaped tongs mouth 9 and the U-shaped tongs mouth 11 to generate compression force, and the coordinated valve top rod is driven to move downward.
[0011] Beneficial effects:
[0012] Compared with the previous method, the remaining stroke auxiliary measuring tool of the coordinated valve can be independently completed by one person, and the measurement is stable and reliable, the downward pressure value is uniform and controllable, the tool is not easy to slip, and the product and the aircraft accessories are not damaged, and the operator is not damaged. The utility model can independently and efficiently complete the measurement of the remaining stroke of the coordinated valve. Compared with the original operation method, the working time is effectively saved, the coordinated operator is reduced, the working efficiency is improved, the working time is shortened, and the waste of human resources is reduced. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 It is an appearance diagram of the measured coordinated valve.
[0014] Figure 2 It is a structure diagram of the tongs-shaped coordinated valve remaining stroke auxiliary measuring tool.
[0015] Figure 3 It is a use schematic diagram of the tongs-shaped coordinated valve remaining stroke auxiliary measuring tool.
[0016] Figure 4 It is a three-dimensional diagram of the tongs-shaped coordinated valve remaining stroke auxiliary measuring tool.
[0017] Among them Figure 1 1 adjustment rod, 2 spare locking cap, 3 compression rod, 4 upper end shell, 5 shell spare cap, 6 middle shell, 7 lower end shell, and hatch door linkage pressing plate 8.
[0018] Among them Figure 2 Π-shaped tongs mouth 9, first tongs arm 10, U-shaped tongs mouth 11, second tongs arm 12, first locking slot 13, second locking slot 14, first pin 15, and second pin 16. DETAILED DESCRIPTION
[0019] The utility model will be further described below in combination with the drawings:
[0020] As Figure 1 shown, the working principle of the coordinated valve is that the nozzle B connects the pressure oil way, when the adjustment rod 1 is not compressed, the nozzle A is not communicated with the nozzle B. When the adjustment rod 1 is pressed, the internal steel ball is pushed under the rod, the compression spring is compressed, the steel ball leaves the valve seat, the nozzle B and the nozzle A are communicated, the oil way is converted, the landing gear is controlled to be collected or released.
[0021] The utility model discloses a structure as Figure 2 、 4 Indicated, comprising:
[0022] Π type mouthful 9 and U type mouthful 11, Π type mouthful 9 rear end is connected with first arm 10, and U type mouthful 11 rear end is connected with second arm 12, and first arm 10 is hinged with second arm 12.
[0023] First arm 10 is engaged with the second locking slot 14 in the handle position of second arm 12 through the first locking slot 13 in the handle position, and the first locking slot 13 and the second locking slot 14 form locking force through engagement. For locking force, it is convenient to keep state, and it is convenient to measure.
[0024] The contact surface of first locking slot 13 and second locking slot 14 is engaged through bevel gear.
[0025] First locking slot 13 is pinned in the handle position of first arm 10 through first pin 15.
[0026] Second locking slot 12 is pinned in the handle position of second arm 12 through second pin 16.
[0027] As Figure 3 Indicated, U type mouthful 11 round opening is clamped on the boss of column surface between middle shell 6 and lower end shell 7 in Figure 1 Π type mouthful 9 square opening is clamped in the position of locking nut 2 in Figure 1 Narrow the first arm 10 and second arm 12 to generate compression force measurement between the end of top rod 1 and hatch linkage pressing plate 8 (that is Figure 1 The downward movement stroke between compression rod 3 and coordination valve end surface in
[0028] The auxiliary measurement tool of coordination valve remaining stroke is accurate in clamping position positioning, stable and reliable in force point, and will not deviate, and the top rod moves slowly and smoothly, and can be kept in compression state by first locking slot 13 and second locking slot 14 on first arm 10 and second arm 12 when reaching the lower limit position, at this time, the arm can be released, and the measurement tool is convenient for measuring gap or remaining stroke.
[0029] The gap or remaining stroke value between the end of top rod and hatch linkage pressing plate does not meet the file requirements, and the length of adjusting rod can be adjusted again, and the tool is used for measuring again to meet the technical index requirements.
Claims
1. A pincer coordination valve residual stroke assistance measuring tool characterized by, Comprising: Π-shaped jaw (9) and U-shaped jaw (11), the rear end of Π-shaped jaw (9) is connected with the first jaw arm (10), the rear end of U-shaped jaw (11) is connected with the second jaw arm (12), the first jaw arm (10) is hinged with the second jaw arm (12).
2. A caliper coordinated valve residual stroke assist measuring tool as described in claim 1, wherein, The first jaw arm (10) is engaged with the second locking slot (14) located at the handle position of the second jaw arm (12) through the first locking slot (13) at the handle position, the first locking slot (13) and the second locking slot (14) form locking force through engagement.
3. A calliper coordinated valve residual stroke assist measuring tool as claimed in claim 2, wherein, The contact surface of the first locking slot (13) and the second locking slot (14) is engaged through oblique teeth.
4. A calliper coordinated valve residual stroke assist measuring tool as claimed in claim 3 wherein, The first locking slot (13) is pinned to the handle position of the first jaw arm (10) through the first pin (15).
5. A calliper coordinated valve residual stroke assist measuring tool as claimed in claim 3 wherein, The second locking slot (14) is pinned to the handle position of the second jaw arm (12) through the second pin (16).
6. A calliper coordinated valve residual stroke assist measuring tool as claimed in claim 3 wherein, The U-shaped jaw (11) clamps the waist of the coordinating valve shell, the Π-shaped jaw (9) clamps the adjusting top rod locking nut of the coordinating valve, the first jaw arm (10) and the second jaw arm (12) are folded to drive the Π-shaped jaw (9) and the U-shaped jaw (11) to generate compression force, and the coordinating valve top rod is driven to move downward.