An aircraft mechanical backup throttle console throttle lever angle measurement tool

Abstract

The utility model discloses an airplane mechanical backup oil door control platform oil door rod angle measurement frock, including rack, adjustable bolt, nut, pin, plug, measurement frock post, plug, calipers and positioning pin, adjustable bolt is connected on the oil door control platform, adjustable bolt one end is with plug screw thread connection, rack one end penetrates adjustable bolt and is connected with pin, the utility model discloses an airplane mechanical backup oil door control platform oil door rod angle measurement frock, its simple structure, convenient and practical through with measurement frock measurement rack's stroke, guarantee to parking space when stroke satisfies design size requirement, to the maximum position when stroke satisfies design size requirement, guarantee when rack movement stroke reaches design size requirement, parking micro -switch can trigger, and the oil door control platform oil door rod angle measurement is converted into the size measurement of rack movement stroke, reaches the purpose of fast accurate measurement of oil door rod angle.

Description

Technical Field

[0001] This utility model belongs to the field of throttle lever angle measurement technology, specifically relating to a tooling for measuring the throttle lever angle of an aircraft mechanical backup throttle control panel. Background Technology

[0002] During the production, assembly, acceptance, and delivery of aircraft mechanical backup throttle control consoles, it is necessary to measure the throttle lever angles of the front and rear throttle consoles. Different throttle lever angles correspond to various operating states of the aircraft engine ("stop", "anti-shutdown", "neutral", "maximum"). The given tolerance range for these angle dimensions is small. To reduce human measurement errors and ensure the accuracy and consistency of dimensions, through continuous practice and optimization, we provide a tooling for measuring the throttle lever angle of aircraft mechanical backup throttle control consoles to solve the above-mentioned technical problems. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a measuring fixture for the throttle lever angle of an aircraft mechanical backup throttle control panel. The fixture has a simple structure and is convenient and practical. By measuring the travel of the rack, it ensures that the travel meets the design size requirements when the rack reaches the parking position and the maximum position. It also ensures that the parking microswitch can be triggered when the rack travel reaches the design size requirement. The measurement of the throttle lever angle of the throttle control panel is converted into the measurement of the rack travel size, so as to achieve the purpose of quickly and accurately measuring the throttle lever angle.

[0004] A throttle lever angle measuring fixture for an aircraft mechanical backup throttle control panel includes a rack, an adjustable bolt, a nut, a pin, a plug, a measuring fixture post, a stopper, calipers, and a positioning pin. The adjustable bolt is connected to the throttle control panel, with one end threaded to the stopper. One end of the rack passes through the adjustable bolt and is connected to the pin. The pin is located inside the adjustable bolt and engages with the stopper. The nut is connected to the adjustable bolt. The measuring fixture post has a caliper positioning groove and a measuring connection hole at both ends. The caliper positioning groove has a measuring hole communicating with the measuring connection hole. The stopper and caliper are respectively connected to the caliper positioning groove and the measuring connection hole. The positioning pin is inserted into the throttle control panel and used to lock the throttle lever in the "neutral" position.

[0005] Preferably, a caliper locking screw hole is provided on the measuring fixture column on one side of the caliper positioning groove.

[0006] Preferably, the bottom of the caliper positioning groove is provided with a waist-shaped corner clearing hole.

[0007] Preferably, the caliper is a digital vernier caliper.

[0008] Preferably, the diameter of the positioning pin is 3.00 mm to 3.10 mm.

[0009] Beneficial effects:

[0010] (1) The present invention provides a measuring fixture for measuring the throttle lever angle of an aircraft mechanical backup throttle control panel. It has a simple structure and is convenient and practical. By measuring the travel of the rack with the measuring fixture, it ensures that the travel meets the design size requirements when the rack reaches the parking position and the maximum position. It also ensures that the parking micro switch can be triggered when the rack travel reaches the design size requirements. The throttle lever angle measurement of the throttle control panel is converted into the size measurement of the rack travel, so as to achieve the purpose of quickly and accurately measuring the throttle lever angle. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the adjustable bolt structure;

[0012] Figure 2 A schematic diagram of the structure of the measuring tool column;

[0013] Figure 3 This is a schematic diagram of the throttle lever on the control panel;

[0014] 1-Rack, 2-Adjustable bolt, 3-Nut, 4-Pin, 5-Plug, 6-Measuring fixture post, 7-Caliper positioning groove, 8-Measuring hole, 9-Measuring connection hole, 10-Plug, 11-Caliper, 12-Caliper locking screw hole, 13-Oval corner clearing hole. Detailed Implementation

[0015] The embodiments of this utility model are further described below with reference to the accompanying drawings.

[0016] Example 1

[0017] like Figures 1 to 3As shown; a throttle lever angle measuring fixture for an aircraft mechanical backup throttle control panel includes a rack 1, an adjustable bolt 2, a nut 3, a pin 4, a plug 5, a measuring fixture post 6, a plug 10, a caliper 11, and a positioning pin. The adjustable bolt 2 is connected to the throttle control panel, with one end threaded to the plug 5. One end of the rack 1 passes through the adjustable bolt 2 and is connected to the pin 4. The pin 4 is disposed inside the adjustable bolt 2 and engages with the plug 5. The nut 3 is connected to the adjustable bolt 2. The measuring fixture post 6 has locking tabs at both ends. The caliper positioning groove 7 and the measuring connection hole 9 are provided. The measuring hole 8 in the caliper positioning groove 7 communicates with the measuring connection hole 9. The plug 10 and the caliper 11 are respectively connected in the caliper positioning groove 7 and the measuring connection hole 9. The positioning pin is inserted into the throttle control panel and is used to lock the throttle lever in the "neutral" position. The measuring tooling column 6 on one side of the caliper positioning groove 7 is provided with a caliper locking screw hole 12. The bottom of the caliper positioning groove 7 is provided with a waist-shaped corner clearing hole 13. The caliper 11 is a digital display vernier caliper. The diameter of the positioning pin is 3.00mm to 3.10mm.

[0018] The measurement principle involves using "Stop," "Anti-Stalling," "Neutral," and "Maximum" position indicators on both the front and rear throttle control panels. The rear throttle control panel also features "Locked" and "Released" indicators. Left and right throttle lever stop and maximum position limiters (stop pins and bolts) are installed on the front and rear bulkheads of the front and rear throttle control panels. Position adjustments are made using these bolts to ensure the maximum and stop positions are met. The neutral position is used as a reference during adjustment. The rack travel is measured using measuring fixtures (including vernier calipers) to ensure that the travel meets design dimensions when reaching the stop and maximum positions. This ensures that the stop microswitch is triggered when the rack travel reaches the design dimensions. The throttle lever angle measurement on the throttle control panel is converted into a measurement of the rack travel dimension.

[0019] The caliper 11 is fixed in the caliper positioning groove 7 by a stop screw. The stop screw is installed in the caliper locking screw hole 12. The waist-shaped corner clearing hole 13 is used to clear the rounded corner at the bottom of the caliper positioning groove 7 to prevent the caliper 11 from being inserted into the bottom of the caliper positioning groove 7 and making contact with it, which would cause unevenness and measurement errors.

[0020] Before using the tool to measure the travel of the throttle control panel handle, tighten the zeroing plug 10 of the caliper into the measuring connection hole 9, push the vernier scale of the caliper 11 to the zeroing plug 10 (pull, push, and tighten until it can no longer be pushed), and remove the zeroing plug 10 to zero the digital display value of the caliper 11.

[0021] Adjust the control panel handle so that the positioning pin can be smoothly inserted and locked in the "neutral" position. (If 15.25mm pin 4 is used during production assembly and debugging, to find the neutral position, simply insert 15.25mm pin 4 into the adjustable bolt 2 at the rear end of the throttle panel, tilt the throttle lever handle slightly forward, plug the cover 5, and push the handle backward until pin 4 and cover 5 cannot be pushed further. At this point, the positioning pin can pass through the side wall plate, gear, gear, and side wall plate in sequence. After inserting the positioning pin, remove cover 5 and 15.25mm pin 4.)

[0022] Tighten the measuring connection hole 9 of the zeroed measuring fixture column 6 to the adjusting bolt 2 at the rear end of the throttle control panel. Pull down the vernier scale of caliper 11 until it reaches the rack 1, and measure the distance from the end face of the rear interface (i.e., adjusting bolt 2) to the end face of rack 1. The rear interface ("stop" position) should meet the design dimension requirements. After measurement and confirmation, pull down the vernier scale of caliper 11 until it reaches the rack 1, zero the digital display value of the caliper, and then pull out the pin.

[0023] a. If the measurement is of the rear compartment throttle control panel, tighten the plug 5 onto the corresponding adjustable bolt 2 at the front end, push the handle to the top of the plug 5, pull down the vernier scale of the caliper 11, and measure the distance from the end face of the front interface (i.e., the adjustable bolt 2) to the end face of the rack 1. The front interface ("maximum" position) should meet the design size requirements. After measuring this size, remove the plug 5.

[0024] b. If measuring the throttle control panel in the front compartment, slowly and smoothly push the handle to the "Park" position. During this process, when rack 1 reaches its designed travel distance, you can hear the "Park Microswitch" being triggered. This allows you to measure the travel distance required to trigger the "Microswitch" from the "Neutral" position to the "Park" position.

[0025] Push the throttle control lever to the "maximum" position, pull down the vernier scale of caliper 11 to the rack 1, and measure the travel of rack 1 from the "neutral" position to the "maximum" position. It should meet the design size requirements. Push the lever to the "stop" position and measure the travel of rack 1 from the "neutral" position to the "stop" position. It should meet the design size requirements.

[0026] Remove the measuring fixture and push the handle back to the "neutral" position. This completes one measurement of the left or right engine position on the throttle control panel. The measurement method for the left or right engine is the same as above.

[0027] The specific embodiments of this utility model have been described in detail above, but they are merely examples, and this utility model is not limited to the specific embodiments described above. For those skilled in the art, any equivalent modifications and substitutions to this utility model are also within the scope of this utility model. Therefore, all equivalent changes and modifications made without departing from the spirit and scope of this utility model are covered within the scope of this utility model.

Claims

1. A fixture for measuring the angle of the throttle lever on an aircraft mechanical backup throttle control panel, characterized in that: The device includes a rack (1), an adjustable bolt (2), a nut (3), a pin (4), a plug (5), a measuring fixture (6), a plug (10), a caliper (11), and a positioning pin. The adjustable bolt (2) is connected to the throttle control panel. One end of the adjustable bolt (2) is threaded to the plug (5). One end of the rack (1) passes through the adjustable bolt (2) and is connected to the pin (4). The pin (4) is located inside the adjustable bolt (2) and is connected to the plug (5). 5) The nut (3) is connected to the adjustable bolt (2). The measuring tool column (6) has a caliper positioning groove (7) and a measuring connection hole (9) at both ends. The caliper positioning groove (7) has a measuring hole (8) that communicates with the measuring connection hole (9). The plug (10) and the caliper (11) are connected to the caliper positioning groove (7) and the measuring connection hole (9) respectively. The positioning pin is inserted into the throttle control panel and used to lock the throttle lever in the "neutral" position.

2. The fixture for measuring the throttle lever angle of an aircraft mechanical backup throttle control panel as described in claim 1, characterized in that: A caliper locking screw hole (12) is provided on the measuring tool column (6) on one side of the caliper positioning groove (7).

3. The fixture for measuring the throttle lever angle of an aircraft mechanical backup throttle control panel as described in claim 2, characterized in that: The bottom of the caliper positioning groove (7) is provided with a waist-shaped corner clearing hole (13).

4. A fixture for measuring the throttle lever angle of an aircraft mechanical backup throttle control panel as described in claim 1 or 3, characterized in that: The caliper (11) is a digital vernier caliper.

5. The fixture for measuring the throttle lever angle of an aircraft mechanical backup throttle control panel as described in claim 4, characterized in that: The diameter of the positioning pin is 3.00 mm to 3.10 mm.

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