Auxiliary tool for installing combined sealing ring of aircraft spoiler actuator

Abstract

The utility model discloses an airplane spoiler actuator combined sealing ring installation auxiliary tool which comprises a handle, a limiting boss and a push rod which are coaxially arranged in sequence, and a special matching head is arranged at the outer end of the push rod. And the special matching head comprises a beveled part and an inner concave arc part. The beveling part is a tangent plane obtained by cutting the outer wall of the cylinder at the end of the push rod, and the tangent plane and the center axis of the push rod form an inclination angle of 15 degrees. The inwards-concave arc part is an inwards-concave arc surface obtained by obliquely cutting the tangent plane of the oblique cutting part, and the inwards-concave arc surface corresponds to a 5mm radial hollow part. The handle, the limiting boss and the push rod are all made of polytetrafluoroethylene materials. According to the spoiler actuator combined sealing ring installation auxiliary tool, the beveling part and the concave arc part of the special matching head are matched with a hard plastic ring which is molded into a love-core ring, so that the love-core ring is pushed while being restored into a circular ring and installed in an end cover of a spoiler actuator, installation is reliable, installation efficiency is high, and precision is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of aircraft ground maintenance, especially to a kind of aircraft spoiler actuator combination packing ring installation auxiliary tool. BACKGROUND

[0002] When the end cover shaft seal of Boeing aircraft spoiler actuator is installed, two corresponding shaft seal members need to be installed in the end cover cavity:

[0003] The first shaft seal member is an inner rubber ring, which is an elastic rubber member and can be easily installed in the first predetermined position inside the end cover by a conventional tool such as a needle.

[0004] The second shaft seal member is an outer hard plastic ring, which has an outer diameter slightly larger than the inner diameter of the end cover cavity and needs to be installed in the second predetermined position through the end cover cavity. The second shaft seal member has slightly greater hardness and width, and it is difficult to install in place and tightly fit with the end cover by conventional tools. If it is forced to press in by matching shaft, the plastic ring is easily damaged.

[0005] At the same time, since there is no related special tool in the "Component Repair Manual", if it is not installed in place, it is easy to cause damage to the spoiler actuator or oil leakage, causing economic loss. INVENTION CONTENTS

[0006] In view of the deficiencies of the prior art, the utility model provides an aircraft spoiler actuator combined packing ring installation auxiliary tool to overcome the deficiencies in the prior art.

[0007] To achieve the above purpose, the utility model is implemented by the following technical solutions:

[0008] An aircraft spoiler actuator combined packing ring installation auxiliary tool, comprising a handle, a limiting boss and a push rod arranged coaxially in sequence, and a special matching head is arranged at the outer end of the push rod; the special matching head comprises an oblique cutting part and an inner concave arc part.

[0009] Further, the oblique cutting part is a cutting surface obtained by cutting the cylindrical outer wall of the push rod end, and the cutting surface has an inclination angle of 15° with the central axis of the push rod.

[0010] Further, the inner concave arc part is an inner concave arc surface obtained by further cutting an inclined arc surface on the cutting surface of the oblique cutting part, and the inner concave arc surface corresponds to a radial hollow of 5mm.

[0011] Preferably, the handle, limiting boss and push rod are all made of polytetrafluoroethylene material.

[0012] Preferably, the outer diameter of the push rod is 0.5mm smaller than the inner diameter of the spoiler end cover.

[0013] Preferably, the push rod end face, the beveling part of the special matching head and the inner concave arc part of the special matching head are all chamfered.

[0014] Preferably, the handle is 3 cm in diameter and 10 cm in length.

[0015] Preferably, the handle is square columnar or cylindrical.

[0016] Compared with the prior art, the present application has the following beneficial effects:

[0017] 1) The aircraft spoiler actuator combined seal ring installation auxiliary tool uses the beveling part and the inner concave arc part of the special matching head to cooperate with the hard plastic ring shaped like a love heart, so that the love heart ring is pushed and restored into a circular ring at the same time and installed into the spoiler actuator end cover, which is reliable, efficient and precise.

[0018] 2) The aircraft spoiler actuator combined seal ring installation auxiliary tool has a special matching head with a beveling part and an inner concave arc part, which is made of polytetrafluoroethylene material, is easy to shape and has good properties such as heat resistance, cold resistance, acid and alkali resistance, resistance to various organic solvents, extremely low friction coefficient and lubrication effect, which is beneficial to machining the special matching head into a special shape to push the second shaft seal of the spoiler end cover into place and avoid damaging the second shaft seal and other aircraft parts.

[0019] 3) The aircraft spoiler actuator combined seal ring installation auxiliary tool has a simple structure and low manufacturing cost, which is beneficial to popularization.

[0020] In order to more clearly understand the present application, the preferred embodiments of the present application will be described below with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a schematic diagram of the overall structure of the present application;

[0022] Figure 2 is a schematic diagram of the structure from the top of the present application;

[0023] Figure 3 、 Figure 4 is a reference diagram of the use state of the present application.

[0024] IDENTIFICATION OF DRAWINGS:

[0025] 1-handle, 2-limiting boss, 3-push rod, 31-beveling part, 32-inner concave arc part; 7-spoiler actuator end cover; 8-second shaft seal. DETAILED DESCRIPTION

[0026] In the description of the utility model, it is understood that the orientation or position relation indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or position relation shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In the description of the utility model, the meaning of "a plurality of" is two or more, unless otherwise specified.

[0027] In addition, the terms "first", "second", etc. are used only for descriptive purposes, mainly for distinguishing different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components, and cannot be understood as indicating or implying the relative importance.

[0028] In addition, it should be noted that, unless otherwise specified and limited, the terms "mounting", "provided with", "sleeved / connected", "connected" and the like should be understood broadly, for example, "connected" can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, can be electrically connected; can be directly connected, can be indirectly connected through an intermediate medium, can be internal communication of two elements; for ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0029] Please refer to Figures 1-2 The utility model provides a kind of aircraft spoiler actuator combination packing ring installation auxiliary tool, including coaxial sequentially arranged handle 1, limiting boss 2 and push rod 3, and push rod 3 outer end is provided with special cooperation head.

[0030] The special cooperation head includes a chamfered part 31 and a concave arc part 32.

[0031] The chamfered part 31 is a tangent plane obtained by cutting the cylindrical outer wall of the end of the push rod 3, and the tangent plane is inclined at an angle of 15° to the central axis of the push rod 3.

[0032] The concave arc part 32 is a concave arc surface obtained by further cutting an inclined arc surface on the tangent plane of the chamfered part 31, and the concave arc surface corresponds to a radial hollow of 5 mm.

[0033] As preferred, in the embodiment, the handle 1, the limiting boss 2 and the push rod 3 are all made of polytetrafluoroethylene material, which has good properties such as heat resistance, cold resistance, acid and alkali resistance, resistance to various organic solvents, extremely low friction coefficient, lubrication, etc., which is conducive to machining the special matching head into a special shape to push the second shaft seal of the spoiler end cover into place, and also avoids damage to the second shaft seal and other aircraft parts.

[0034] As preferred, in the embodiment, the outer diameter of the push rod 3 is 0.5mm smaller than the inner diameter size of the spoiler end cover, so as to ensure that the outer plastic ring (i.e. the second shaft seal) deforms small after installation, and ensure the sealing reliability.

[0035] As preferred, in the embodiment, the end surface of the push rod 3, the chamfered part 31 of the special matching head and the inner concave arc part 32 of the special matching head all have chamfers at the junctions, so as to avoid the junctions being too sharp and damaging the shaft seal of the actuator end cover.

[0036] As preferred, in the embodiment, the handle 1 is 3cm in diameter and 10cm in length, and the handle 1 can be a square column or a circular column, so as to facilitate holding, which is the main effect.

[0037] It should be noted that the handle 1, the limiting boss 2 and the push rod 3 of the embodiment can be an integral piece, or can be assembled together in a detachable manner such as screwing, so as to adapt to different models of spoiler actuator cylinders and enhance the adaptability.

[0038] Please also refer to Figures 1 to 4 The working principle or operation process of the aircraft spoiler actuator combined seal installation auxiliary tool of the case is as follows:

[0039] 1. First, install the first shaft seal (i.e. the inner rubber ring) to the first predetermined position in the spoiler actuator end cover 7;

[0040] 2. Then artificially shape the originally circular second shaft seal 8 (i.e. the outer hard plastic ring) into a heart-shaped ring, and install the second shaft seal 8 into the spoiler actuator end cover 7;

[0041] 3. Insert the auxiliary tool from one side of the spoiler actuator end cover 7, so that the chamfered part 31 and the inner concave arc part 32 of the special matching head of the push rod 3 are inserted into the heart-shaped ring of the second shaft seal 8;

[0042] 4. Hold the handle 1 of the auxiliary tool and push and rotate at the same time, so that the chamfered part 31 and the inner concave arc part 32 of the special matching head gradually contact and slowly expand the heart-shaped ring, so that the heart-shaped ring is restored to its original circular shape while being pushed, and is installed to the second predetermined position, completing the installation of the combined seal.

[0043] Compared with the prior art, the aircraft spoiler actuator combined seal ring installation auxiliary tool uses the beveling part and the concave arc part of the special matching head to cooperate with the hard plastic ring shaped into a love ring, so that the love ring is pushed and restored into a circular ring at the same time and installed into the spoiler actuator end cover, the installation is reliable, the installation efficiency is high, and the precision is high.

[0044] The above-mentioned embodiments only express several implementation manners of the utility model, the description is more specific and detailed, but it cannot be understood as the limitation of the utility model patent range. It should be pointed out that for ordinary skilled persons in the art, several modifications and improvements can be made without departing from the concept of the utility model, and these all belong to the protection range of the utility model.

Claims

1. An aircraft spoiler actuator combined seal installation auxiliary tool, characterized in that: it comprises a handle (1), a limiting boss (2) and a push rod (3) arranged coaxially in sequence, and a special matching head is arranged at the outer end of the push rod (3); the special matching head comprises a beveling part (31) and an inner concave arc part (32); the beveling part (31) is a cutting surface obtained by cutting the outer wall of the cylinder head of the push rod (3), and the cutting surface is inclined at an angle of 15° with the central axis of the push rod (3); the inner concave arc part (32) is an inner concave arc surface obtained by further cutting the cutting surface of the beveling part (31) into an inclined arc surface, and the inner concave arc surface corresponds to a radial hollow of 5 mm; the handle (1), the limiting boss (2) and the push rod (3) are all made of polytetrafluoroethylene material; the outer diameter of the push rod (3) is 0.5 mm smaller than the inner diameter of the spoiler end cover; the end surface of the push rod (3), the beveling part (31) of the special matching head and the inner concave arc part (32) of the special matching head all have chamfers at their joints; the diameter of the handle (1) is 3 cm, and the length of the handle (1) is 10 cm; the handle (1) is square columnar or cylindrical.

2. The aircraft spoiler actuator combined seal installation auxiliary tool according to claim 1, characterized in that: the handle (1) is cylindrical.

3. The aircraft spoiler actuator combined seal installation auxiliary tool according to claim 1, characterized in that: the limiting boss (2) is arranged at the outer end of the handle (1).

2. An aircraft spoiler actuator assembly seal installation aid according to claim 1, wherein:

4. The aircraft spoiler actuator combined seal installation auxiliary tool according to claim 1, characterized in that: the limiting boss (2) is arranged at the outer end of the handle (1).

3. An aircraft spoiler actuator assembly seal installation aid according to claim 2, wherein:

5. The aircraft spoiler actuator combined seal installation auxiliary tool according to claim 1, characterized in that: the limiting boss (2) is arranged at the outer end of the handle (1).

4. An aircraft spoiler actuator assembly seal installation aid according to claim 3, wherein:

6. The aircraft spoiler actuator combined seal installation auxiliary tool according to claim 1, characterized in that: the limiting boss (2) is arranged at the outer end of the handle (1).

5. An aircraft spoiler actuator assembly seal installation aid according to claim 3, wherein:

7. The aircraft spoiler actuator combined seal installation auxiliary tool according to claim 1, characterized in that: the limiting boss (2) is arranged at the outer end of the handle (1).

6. An aircraft spoiler actuator assembly seal installation aid according to claim 3, wherein:

8. The aircraft spoiler actuator combined seal installation auxiliary tool according to claim 1, characterized in that: the limiting boss (2) is arranged at the outer end of the handle (1).

7. An aircraft spoiler actuator assembly seal installation aid according to claim 3, wherein:

9. The aircraft spoiler actuator combined seal installation auxiliary tool according to claim 1, characterized in that: the limiting boss (2) is arranged at the outer end of the handle (1).

8. An aircraft spoiler actuator assembly seal installation aid according to claim 3, wherein:

10. The aircraft spoiler actuator combined seal installation auxiliary tool according to claim 1, characterized in that: the limiting boss (2) is arranged at the outer end of the handle (1).

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