Wear-resistant and impact-resistant beryllium copper piece

Abstract

The utility model discloses a wear-resistant impact-resistant beryllium copper piece, which relates to the technical field of parts of aircraft landing gears and comprises a lower component assembly, and an upper component assembly is arranged at the top of the lower component assembly. The lower part assembly and the upper part assembly are arranged, the base, the top plate and the straight rods are all made of beryllium copper, good impact resistance and abrasion resistance are achieved, meanwhile, the multiple straight grooves are formed, the inner side walls of the straight grooves are vertically arranged, and the effect similar to that of reinforcing ribs is achieved, and the strength of the base can be improved; the base is in the shape of a circular truncated cone, and the side supporting plate is arranged between the top plate and the folded edge, so that the received vertical force can be divided into vertical force and inclined force, and the impact force is dispersed.

Description

Technical Field

[0001] The utility model relates to the technical field of aircraft landing gear parts, and particularly relates to a wear-resistant and impact-resistant beryllium copper part. Background Art

[0002] The landing gear is an accessory device used to support the aircraft during takeoff, landing, or ground (water surface) taxiing at the lower part of the aircraft. The landing gear is the only component that supports the entire aircraft, so it is an indispensable part of the aircraft; without it, the aircraft cannot move on the ground. After the aircraft takes off, the landing gear can be retracted depending on the flight performance. The landing gear needs to withstand good impact force during use, so the parts need to use materials with high strength and impact resistance. Beryllium bronze is a kind of non-ferrous bronze with beryllium as the main alloying element. It contains 1.7 - 2.5% beryllium and a small amount of elements such as nickel, chromium, and titanium. After quenching and aging treatment, the strength limit can reach 1250 - 1500 MPa, approaching the level of medium-strength steel. It has good plasticity in the quenched state and can be processed into various semi-finished products. Beryllium bronze has high hardness, elastic limit, fatigue limit, and wear resistance, so beryllium copper parts are used in the parts of the landing gear; however, the existing wear-resistant and impact-resistant beryllium copper parts for aircraft landing gear have a single structure. Depending only on the impact resistance of the beryllium copper parts themselves, it is easy to greatly reduce the service life of the beryllium copper parts and increase the maintenance cost.

[0003] Therefore, it is very necessary to invent a wear-resistant and impact-resistant beryllium copper part to solve the above problems. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a wear-resistant and impact-resistant beryllium copper part to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A wear-resistant and impact-resistant beryllium copper part, including a lower component assembly, and an upper component assembly is arranged at the top of the lower component assembly;

[0006] The lower component assembly includes a base and a flange, and the flange is integrally formed at the bottom end of the outer side wall of the base;

[0007] The upper component assembly includes a top plate, and the top plate is adapted to the top end of the base.

[0008] Preferably, the base is arranged in a frustum shape, and a through groove is formed through the middle of the top end of the base.

[0009] Preferably, a plurality of straight grooves are formed at the top end of the base, and the plurality of straight grooves are distributed in a circular array, and the inner side wall of the straight groove is arranged vertically.

[0010] Preferably, the inner sidewall of the hem is arc-shaped. The outer sidewall of the base is provided with side support plates around it, and the bottom end of the side support plate is adapted to the inner sidewall of the hem. The top end of the side support plate is integrally formed with the bottom edge of the top plate.

[0011] Preferably, a ring-shaped buffer pad is fixedly arranged at the top end of the base, and the top end of the ring-shaped buffer pad is fixedly connected to the bottom end of the top plate.

[0012] Preferably, the bottom end of the top plate is fixedly provided with straight rods corresponding to the plurality of straight grooves one by one, and the straight rods are adapted to the straight grooves.

[0013] Preferably, a buffer column is fixedly arranged at the bottom end of the straight rod, and the bottom end of the buffer column is fixedly connected to the inner wall of the bottom end of the straight groove.

[0014] The technical effects and advantages of the present utility model:

[0015] Through the settings of the lower component assembly and the upper component assembly of the present utility model, the base, the top plate and the straight rods are all made of beryllium copper, which itself has good impact resistance and wear resistance. At the same time, through the settings of the plurality of straight grooves, and the inner sidewalls of the straight grooves are vertically arranged, similar to the effect of reinforcing ribs, the strength of the base can be improved; and the base is frustum-shaped, and side support plates are arranged between the top plate and the hem, which can divide the vertically applied force into a vertical force and an oblique force, dispersing the impact force. At the same time, a ring-shaped buffer pad is arranged between the top plate and the base, and buffer columns are arranged at the bottom ends of the plurality of straight rods. The ring-shaped buffer pad and the buffer columns are both made of rubber and have good buffering effects, further buffering the impact force on the base, thereby reducing the damage of the impact force to the base and improving the overall service life of the beryllium copper parts. Description of the Drawings

[0016] Figure 1 It is a schematic three-dimensional structure diagram of the whole of the present utility model.

[0017] Figure 2 It is a schematic structure diagram of the lower component assembly of the present utility model.

[0018] Figure 3 It is of the present utility model Figure 2 Schematic cross-sectional structure diagram.

[0019] Figure 4 It is a schematic structure diagram of the upper component assembly of the present utility model.

[0020] In the figure: 1. Lower component assembly; 2. Upper component assembly; 101. Base; 102. Hem; 103. Through groove; 104. Side support plate; 105. Ring-shaped buffer pad; 106. Straight groove; 201. Top plate; 202. Straight rod; 203. Buffer column. Detailed Embodiments

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0022] The present utility model provides a wear-resistant and impact-resistant beryllium copper part as shown in Figures 1-4 Figure 5, which includes a lower component assembly 1, and an upper component assembly 2 is arranged at the top of the lower component assembly 1.

[0023] Further, the lower component assembly 1 includes a base 101 and a flanging 102, and the flanging 102 is integrally formed at the bottom end of the outer side wall of the base 101. The base 101 is arranged in a frustum shape, and a through groove 103 is formed through the middle of the top end of the base 101. A plurality of straight grooves 106 are formed at the top end of the base 101, and the plurality of straight grooves 106 are distributed in a circular array. The inner side wall of the straight groove 106 is arranged vertically, and the inner side wall of the flanging 102 is arranged in an arc shape. The arc-shaped arrangement can increase the contact surface, reduce the pressure, and reduce the impact force. A side support plate 104 is arranged around the outer side wall of the base 101, and the bottom end of the side support plate 104 is adapted to the inner side wall of the flanging 102. The top end of the side support plate 104 is integrally formed with the bottom edge of the top plate 201. Through the arrangement of the lower component assembly 1 and the upper component assembly 2, the base 101, the top plate 201, and the straight rod 202 are all made of beryllium copper, and they have good impact resistance and wear resistance by themselves. At the same time, through the arrangement of the plurality of straight grooves 106 and the vertical inner side wall of the straight groove 106, similar to the effect of stiffeners, the strength of the base 101 can be improved; and the base 101 is arranged in a frustum shape, and a side support plate 104 is arranged between the top plate 201 and the flanging 102, which can divide the vertically applied force into a vertical force and an oblique force, thereby dispersing the impact force.

[0024] Secondly, a straight rod 202 corresponding to each of the plurality of straight grooves 106 is fixedly arranged at the bottom end of the top plate 201, and the straight rod 202 is adapted to the straight groove 106. An annular buffer pad 105 is fixedly arranged at the top end of the base 101, and the top end of the annular buffer pad 105 is fixedly connected to the bottom end of the top plate 201. A buffer column 203 is fixedly arranged at the bottom end of the straight rod 202, and the bottom end of the buffer column 203 is fixedly connected to the inner wall of the bottom end of the straight groove 106. An annular buffer pad 105 is arranged between the top plate 201 and the base 101, and buffer columns 203 are arranged at the bottom ends of the plurality of straight rods 202. The annular buffer pad 105 and the buffer column 203 are both made of rubber and have good buffering effects, further buffering the impact force on the base 101, thereby reducing the damage to the base 101 caused by the impact force and improving the overall service life of the beryllium copper part.

[0025] Working principle of the utility model:

[0026] During use, due to the settings of the lower component assembly 1 and the upper component assembly 2, the base 101, the top plate 201, and the straight rods 202 are all made of beryllium copper, which itself has good impact resistance and wear resistance. At the same time, through the settings of a plurality of straight grooves 106, and the inner side walls of the straight grooves 106 are vertically arranged, similar to the effect of reinforcing ribs, the strength of the base 101 can be improved; and the base 101 is arranged in a frustum shape, and a side support plate 104 is arranged between the top plate 201 and the flanging 102, which can divide the vertically acting force into a vertical force and an oblique force to disperse the impact force. At the same time, an annular buffer pad 105 is arranged between the top plate 201 and the base 101, and buffer columns 203 are arranged at the bottom ends of a plurality of straight rods 202. The annular buffer pad 105 and the buffer columns 203 are both made of rubber and have good buffer effects, further buffering the impact force on the base 101, thereby reducing the damage of the impact force to the base 101 and improving the overall service life of the beryllium copper parts.

[0027] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A wear-resistant and impact-resistant beryllium copper part, characterized in that: It includes a lower component assembly (1), and an upper component assembly (2) is arranged at the top of the lower component assembly (1); The lower component assembly (1) includes a base (101) and a hem (102), and the hem (102) is integrally formed at the bottom end of the outer side wall of the base (101); The upper component assembly (2) includes a top plate (201), and the top plate (201) is adapted to the top end of the base (101).

2. The wear-resistant and impact-resistant beryllium copper part according to claim 1, characterized in that: The base (101) is arranged in a frustum shape, and a through groove (103) is formed through the middle of the top end of the base (101).

3. The wear-resistant and impact-resistant beryllium copper part according to claim 2, characterized in that: A plurality of straight grooves (106) are formed at the top end of the base (101), and the plurality of straight grooves (106) are distributed in an annular array. The inner side wall of the straight groove (106) is arranged vertically.

4. A wear-resistant and impact-resistant beryllium copper part according to claim 3, characterized in that: The inner side wall of the hem (102) is arranged in an arc shape. A side support plate (104) is arranged around the outer side wall of the base (101), and the bottom end of the side support plate (104) is adapted to the inner side wall of the hem (102). The top end of the side support plate (104) is integrally formed with the bottom edge of the top plate (201).

5. A wear-resistant and impact-resistant beryllium copper part according to claim 4, characterized in that: An annular buffer pad (105) is fixedly arranged at the top end of the base (101), and the top end of the annular buffer pad (105) is fixedly connected to the bottom end of the top plate (201).

6. The wear-resistant and impact-resistant beryllium copper part according to claim 5, characterized in that: A straight rod (202) corresponding to each of the plurality of straight grooves (106) is fixedly arranged at the bottom end of the top plate (201), and the straight rod (202) is adapted to the straight groove (106).

7. The wear-resistant and impact-resistant beryllium copper part according to claim 6, wherein: A buffer column (203) is fixedly arranged at the bottom end of the straight rod (202), and the bottom end of the buffer column (203) is fixedly connected to the inner wall of the bottom end of the straight groove (106).

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