Operation tool for in-place replacement of bearing in propeller-shaped aircraft aileron adjusting pull rod

Abstract

The utility model discloses an operation tool for in-place replacement of a bearing in an aileron adjusting pull rod of a paddle-shaped aircraft, and the adjusting pull rod is arranged between a main wing and a corresponding aileron of the paddle-shaped aircraft and is of a hollow structure; the bearing is assembled in the hollow inner hole of the aileron end of the adjusting pull rod through a close fit structure; the operation tool is provided with a handheld base and a punching rod which are independent of each other. The handheld base is provided with a bearing face abutting against the main wing end of the adjusting pull rod, and a bearing groove with the diameter larger than that of a hollow inner hole of the adjusting pull rod is formed in the bearing face through an inward concave structure. The diameter of the punching rod is larger than the inner diameter of the outer ring of the bearing and smaller than the diameter of the hollow inner hole of the adjusting pull rod. The device has the technical advantages that the operation is simple, the device can effectively adapt to the special working condition environment of the paddle-shaped aircraft aileron adjusting pull rod, and the in-place disassembly of the bearing can be easily realized.

Description

Technical Field

[0001] The utility model relates to a maintenance tool for a paddle-shaped aircraft, in particular to an operating tool for in-situ replacement of an inner bearing of an aileron regulating pull rod of a paddle-shaped aircraft. Background Art

[0002] The ailerons of a propeller-shaped aircraft are located behind the main wing. The turning moment of the aircraft in the air is controlled by adjusting the deflection of the ailerons, so the ailerons can be deflected and adjusted behind the main wing.

[0003] The deflection adjustment of the aileron behind the main wing is achieved through a retractable adjustment rod arranged between the aileron and the main wing, that is, the deflection of the aileron on the main wing is controlled by extending the adjustment rod backward / forward. In order to adapt to the deflection adjustment action of the adjustment rod on the aileron, a movable connection structure is formed between the adjustment rod and the aileron. Specifically, a bearing is assembled through a hollow inner hole at the aileron end of the adjustment rod in a tight-fitting structure. The inner ring of the bearing is connected to an outwardly extending adapter bolt in a tight-fitting structure. The outer end of the adapter bolt is connected to the mounting lug of the aileron, so that the adapter bolt and the adjustment rod can perform circumferential rotation through the bearing.

[0004] The adjusting rod between the main wing and aileron of the propeller-shaped aircraft is easily damaged by wear and jamming due to the impact of axial and circumferential forces during service, and the bearings in the adjusting rod need to be replaced and maintained. Due to the small arrangement space of the adjusting rod at the aileron and the influence of the position of the aileron, and the lack of special tooling for the replacement and maintenance of the bearings in the aileron adjusting rod, when replacing and maintaining the bearings in the adjusting rod, the adjusting rod needs to be removed from the propeller-shaped aircraft as a whole, which makes the replacement of the bearings in the adjusting rod difficult, cumbersome and inefficient. Utility Model Content

[0005] The technical purpose of the utility model is to provide a work tool that can replace the inner bearing of the aileron adjusting rod of a paddle-shaped aircraft with the aileron adjusting rod in place, in view of the particularity of the replacement and maintenance work of the inner bearing of the aileron adjusting rod of the paddle-shaped aircraft and the shortcomings of the existing technology.

[0006] The technical purpose of the utility model is achieved by the following technical scheme: an operating tool for replacing the inner bearing of the aileron adjustment rod of a paddle-shaped aircraft in situ, wherein the adjustment rod is arranged between the main wing and the corresponding aileron of the paddle-shaped aircraft and is a hollow structure;

[0007] The bearing is assembled in the hollow inner hole of the aileron end of the adjusting rod in a tight-fitting structure;

[0008] The working tool has a handheld base and a punch rod which are independent of each other;

[0009] The handheld base has a receiving surface that abuts against the main wing end of the adjusting rod, and the receiving surface is formed with a receiving groove with a concave structure having a diameter larger than the hollow inner hole of the adjusting rod;

[0010] The diameter of the punch rod is larger than the inner diameter of the outer ring of the bearing and smaller than the diameter of the hollow inner hole of the adjusting rod;

[0011] When removing the old bearing in the in-position adjusting rod, the handheld base abuts against the main wing end of the adjusting rod with the receiving surface, and the punch abuts against the bearing from the aileron end of the adjusting rod and impacts axially, so that the old bearing is axially displaced in the hollow inner hole of the adjusting rod and falls into the receiving groove of the handheld base, and the punch cooperates in the hollow inner hole of the adjusting rod with a clearance penetration structure;

[0012] When assembling a new bearing on the in-place adjusting rod, the handheld base abuts against the main wing end of the adjusting rod with the supporting surface, and the punch abuts against the bearing from the aileron end of the adjusting rod and impacts axially, so that the new bearing is axially displaced to the designed position in the hollow inner hole of the adjusting rod.

[0013] The above technical measures use independent handheld bases and punches, which can effectively adapt to the spatial structure of the aileron adjustment rod of the paddle-shaped aircraft, so that the handheld base is abutted against the main wing end of the adjustment rod with a receiving surface, and the punch with a gap-through structure in the hollow inner hole of the adjustment rod is used to axially impact the bearing, so that the bearing is axially displaced in the hollow inner hole of the adjustment rod, completing the bearing replacement (disassembly / installation) operation under the in-situ working condition of the adjustment rod. Compared with the overall off-site replacement operation, the above technical measures have the technical characteristics of simple operation, easy implementation and high efficiency.

[0014] The handheld base has an integrally formed receiving section and a handle section;

[0015] The end of the receiving section is a receiving surface, and the outer edge of the ring is a positioning ring part that can face-contact and match the end surface of the main wing end of the adjusting rod, and the concave cavity surrounded by the positioning ring part constitutes a receiving groove that can gap-accommodate the drop bearing;

[0016] The handle section is a structure that can be held by a human hand.

[0017] The handheld base of the above technical measures has an integrally formed receiving section and a handle section. During the disassembly operation, the worker holds the handle section to match the positioning ring of the receiving surface with the end surface of the main wing end of the adjusting rod in a surface contact manner, so that the disassembled bearing falls into the receiving groove. On the one hand, it cooperates with the punch rod to facilitate the punch rod to implement axial impact on the bearing, ensuring that the axial impact force will not cause damage to other components; on the other hand, it can prevent the disassembled bearing from falling and causing further safety hazards.

[0018] The receiving surface of the handheld base is provided with a positioning protrusion formed in an annular direction, the positioning protrusion is formed on the outer edge of the positioning ring portion in an annular protrusion structure, and the inner diameter of the positioning protrusion is larger than the outer diameter of the main wing end of the adjusting rod;

[0019] During operation, the positioning ring portion of the handheld base abuts against the end surface of the main wing end of the adjusting rod in surface contact, and the positioning protrusion is axially overlapped on the end of the main wing of the adjusting rod.

[0020] The inner diameter of the positioning boss of the handheld base is 1 to 3 mm larger than the outer diameter of the main wing end of the adjusting pull rod.

[0021] The receiving surface of the handheld base of the above technical measures is provided with a positioning boss formed in an annular protrusion, and the positioning boss is axially sleeved on the end of the main wing of the adjustment rod to limit the handheld base and make the receiving more stable.

[0022] The impact end of the punch rod has a guide rod;

[0023] The guide rod is formed at the center of the impact end of the punch rod, and the outer diameter of the guide rod is smaller than the inner diameter of the inner ring of the bearing;

[0024] During operation, the guide rod of the punch rod is axially inserted into the inner ring of the bearing.

[0025] The outer diameter of the guide rod of the punch is 1 to 3 mm smaller than the inner diameter of the inner ring of the bearing.

[0026] The axial length of the guide rod of the punch rod is smaller than the axial depth of the receiving groove of the handheld base.

[0027] The axial length of the punch rod is greater than the axial length of the adjusting rod.

[0028] The punch rod of the above technical measures has a guide rod that can be axially installed in the inner ring of the bearing, so that when the bearing is axially impacted, the damage to the adjustment rod or the bearing jamming due to the change of the force direction / position is reduced. Its overall length is greater than the axial length of the adjustment rod, ensuring that the bearing will not be unable to be axially impacted due to insufficient axial length of the punch rod.

[0029] The beneficial technical effect of the utility model is: in view of the particularity of the bearing replacement and maintenance operation in the aileron adjustment rod of the paddle-shaped aircraft, a mutually independent handheld base and punch rod are used, which can effectively adapt to the spatial structure of the aileron adjustment rod of the paddle-shaped aircraft, so that the handheld base is abutted against the main wing end of the adjustment rod with a receiving surface, and the punch rod with a gap-through structure in the hollow inner hole of the adjustment rod is used to axially impact the bearing, so that the bearing is axially displaced in the hollow inner hole of the adjustment rod, and the bearing replacement (disassembly / installation) operation under the in-situ working condition of the adjustment rod is completed. Compared with the overall off-site replacement operation, the above technical measures have the technical characteristics of simple operation, easy implementation and high efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of the utility model.

[0031] Figure 2 It is a cross-sectional view of the utility model.

[0032] The meaning of the codes in the figure are: 1—adjusting rod; 11—positioning ring; 2—bearing; 3—handling part; 31—supporting surface; 32—supporting groove; 33—positioning cam; 4—punch rod; 41—guide rod. DETAILED DESCRIPTION

[0033] The utility model relates to a paddle-shaped aircraft maintenance tool, specifically a paddle-shaped aircraft aileron adjustment rod inner bearing in-situ replacement work tool, the following in conjunction with the specification drawings - namely Figure 1 and Figure 2 The technical solution of the utility model is clearly and in detail explained.

[0034] It should be noted that the drawings of the present invention are schematic, and unnecessary details have been simplified to clarify the technical purpose of the present invention, so as to avoid blurring the technical solution of the present invention in the prior art. In addition, the expressions "approximately" and "substantially" in the following text regarding quantity or matching relationship mean that reasonable assembly errors and processing errors in the industry are allowed to exist, and do not literally express absolute quantity or matching relationship.

[0035] The invention discloses an operating tool for replacing an inner bearing 2 of an aileron adjusting rod 1 of a paddle-shaped aircraft in situ. The operating tool comprises a handheld base 3 and a punch rod 4 which are independent of each other.

[0036] Furthermore, the above-mentioned adjustment rod 1 is arranged between the main wing and the corresponding aileron of the propeller-shaped aircraft and is a hollow structure; the end surface of the main wing end of the adjustment rod 1 has a positioning ring portion 11, and its bearing 2 is assembled in the hollow inner hole of the aileron end of the above-mentioned adjustment rod 1 with a tight fit structure.

[0037] The handheld base 3 has an integrally formed receiving section and a handle section.

[0038] The end of the receiving section is a receiving surface 31, and the outer edge of the ring is a positioning ring portion 11 that can surface-contact and cooperate with the end surface of the main wing end of the above-mentioned adjustment rod 1. The concave cavity surrounded by the positioning ring portion 11 constitutes a receiving groove 32 that can loosely accommodate the drop bearing 2.

[0039] Furthermore, the handle section is a structure that can be grasped by human hands; the above-mentioned receiving groove 32 is formed with an inner concave structure on the receiving surface 31 of the main wing end of the adjustment rod 1 and has a diameter larger than the hollow inner hole of the above-mentioned adjustment rod 1.

[0040] The receiving surface 31 of the handheld base 3 also has a positioning boss 33 formed in an annular protrusion. The positioning boss 33 is formed on the outer edge of the positioning ring portion 11 in an annular protrusion structure, and the inner diameter of the positioning boss 33 is larger than the outer diameter of the main wing end of the adjusting rod 1; the inner diameter of the positioning boss 33 of the handheld base 3 is larger than the outer diameter of the main wing end of the adjusting rod 1 by about 1 to 3 mm (1 mm, 2 mm, 3 mm).

[0041] The above-mentioned working tool also has a punch rod 4, and the impact end of the punch rod 4 has a guide rod 41; the diameter of the above-mentioned punch rod 4 is larger than the inner diameter of the outer ring of the above-mentioned bearing 2, and smaller than the diameter of the hollow inner hole of the above-mentioned adjusting pull rod 1; and the guide rod 41 is formed at the center of the impact end of the punch rod 4, and the outer diameter of the above-mentioned guide rod 41 is smaller than the inner diameter of the inner ring of the above-mentioned bearing 2 by about 1 to 3 mm (1mm, 2mm, 3mm). The axial length of the guide rod 41 of the above-mentioned punch rod is smaller than the axial depth of the receiving groove 32 of the handheld base 3.

[0042] Specific:

[0043] During operation, the positioning ring portion 11 of the handheld base abuts against the end surface of the main wing end of the adjusting rod 1 in surface contact, and the positioning protrusion 33 is axially overlapped on the end of the main wing of the adjusting rod 1.

[0044] The axial length of the punch rod 4 is greater than the axial length of the adjusting rod 1 . During operation, the guide rod 41 of the punch rod 4 is axially inserted into the inner ring of the bearing 2 .

[0045] When removing the old bearing in the in-position adjusting rod 1, the handheld base 3 abuts against the main wing end of the adjusting rod 1 with the receiving surface 31, and the punch 4 abuts against the bearing 2 from the aileron end of the adjusting rod 1 and impacts axially, so that the old bearing is axially displaced in the hollow inner hole of the adjusting rod 1 and falls into the receiving groove 32 of the handheld base 3, and the punch 4 cooperates in the hollow inner hole of the adjusting rod 1 with a clearance penetration structure;

[0046] When assembling a new bearing on the in-place adjusting rod 1, the handheld base 3 abuts against the main wing end of the adjusting rod 1 with the receiving surface 31, and the punch 4 abuts against the bearing 4 from the aileron end of the adjusting rod 1 and impacts axially, so that the new bearing is axially displaced to the designed position in the hollow inner hole of the adjusting rod.

[0047] The above specific embodiments are only used to illustrate the present invention, rather than to limit it.

[0048] Although the present invention has been described in detail with reference to the above specific embodiments, those skilled in the art should understand that they can still modify the specific technical solutions in the above specific embodiments, or make equivalent substitutions for some of the technical features therein, and these modifications or substitutions do not deviate the essence of the corresponding technical solutions from the spirit and scope of the present invention.

Claims

1. A tool for replacing an inner bearing of an aileron adjustment rod of a paddle-shaped aircraft in situ, the adjustment rod (1) being arranged between a main wing and a corresponding aileron of the paddle-shaped aircraft and being a hollow structure; The bearing (2) is assembled in a tight-fitting structure in the hollow inner hole at the aileron end of the adjusting rod (1); Features: The working tool comprises a handheld base (3) and a punch (4) which are independent of each other; The handheld base (3) has a receiving surface (31) that abuts against the main wing end of the adjusting rod (1), and a receiving groove (32) having a diameter larger than the hollow inner hole of the adjusting rod (1) is formed on the receiving surface (31) in an inwardly concave structure; The diameter of the punch rod (4) is larger than the inner diameter of the outer ring of the bearing (2) and smaller than the diameter of the hollow inner hole of the adjusting rod (1); When removing the old bearing in the in-position adjustment rod (1), the handheld base (3) abuts against the main wing end of the adjustment rod (1) with the receiving surface (31), and the punch rod (4) abuts against the bearing (2) from the aileron end of the adjustment rod (1) and impacts axially, so that the old bearing (2) is axially displaced in the hollow inner hole of the adjustment rod (1) and falls into the receiving groove (32) of the handheld base (3), and the punch rod (4) cooperates with the hollow inner hole of the adjustment rod (1) with a clearance penetration structure; When assembling a new bearing on the in-position adjustment rod (1), the handheld base (3) abuts against the main wing end of the adjustment rod (1) with the receiving surface (31), and the punch rod (4) abuts against the bearing (2) from the aileron end of the adjustment rod (1) and impacts axially, so that the new bearing is axially displaced to the designed position in the hollow inner hole of the adjustment rod.

2. The tooling for in-situ replacement of the inner bearing of the aileron adjustment rod of a paddle-shaped aircraft according to claim 1 is characterized in that: The handheld base (3) comprises an integrally formed receiving section and a handle section; The end of the receiving section is a receiving surface (31), the outer edge of the ring is a positioning ring portion (11) capable of surface contact with the end surface of the main wing of the adjusting rod (1), and the concave cavity surrounded by the positioning ring portion (11) constitutes a receiving groove (32) capable of accommodating the drop bearing (2) with clearance; The handle section is a structure that can be held by a human hand.

3. The tooling for in-situ replacement of the inner bearing of the aileron adjustment rod of a paddle-shaped aircraft according to claim 2 is characterized in that: The receiving surface (31) of the handheld base (3) is provided with a positioning protrusion (33) formed in an annular protrusion, the positioning protrusion (33) is formed on the outer edge of the positioning ring portion (11) in an annular protrusion structure, and the inner diameter of the positioning protrusion (33) is larger than the outer diameter of the main wing end of the adjusting rod (1); During operation, the positioning ring portion (11) of the handheld base (3) abuts against the end surface of the main wing of the adjusting rod (1) in a surface contact fit, and the positioning protrusion (33) is axially overlapped on the end of the main wing of the adjusting rod (1).

4. The tooling for in-situ replacement of the inner bearing of the aileron adjustment rod of a paddle-shaped aircraft according to claim 3 is characterized by: The inner diameter of the positioning boss (33) of the handheld base (3) is 1 to 3 mm larger than the outer diameter of the main wing end of the adjustment rod (1).

5. The tooling for in-situ replacement of the inner bearing of the aileron adjustment rod of a paddle-shaped aircraft according to claim 1, characterized in that: The impact end of the punch rod (4) has a guide rod (41); The guide rod (41) is formed at the center of the impact end of the punch rod (4), and the outer diameter of the guide rod (41) is smaller than the inner diameter of the inner ring of the bearing (2); During operation, the guide rod (41) of the punch rod (4) is axially inserted into the inner ring of the bearing (2).

6. The tooling for in-situ replacement of the inner bearing of the aileron adjustment rod of a paddle-shaped aircraft according to claim 5, characterized in that: The outer diameter of the guide rod (41) of the punch rod (4) is 1 to 3 mm smaller than the inner diameter of the inner ring of the bearing (2).

7. The tooling for in-situ replacement of the inner bearing of the aileron adjustment rod of a paddle-shaped aircraft according to claim 5, characterized in that: The axial length of the guide rod (41) of the punch rod (4) is smaller than the axial depth of the receiving groove (32) of the handheld base (3).

8. The tooling for in-situ replacement of the inner bearing of the aileron adjustment rod of a paddle-shaped aircraft according to claim 1, 5 or 6, characterized in that: The axial length of the punch rod (4) is greater than the axial length of the adjusting pull rod (1).

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