阅读说明：本技术 一种起落架强度试验轮胎接地点载荷施加结构 (Structure is applyed to undercarriage intensity test tire ground point load ) 是由 谭彩旗 杜峰 严冲 王毅 任鹏 于 2020-04-12 设计创作，主要内容包括：本申请属于强度结构试验技术领域,特别涉及一种起落架强度试验轮胎接地点载荷施加结构。包括：起落架假轮(1)以及夹板(2)。所述起落架假轮(1)设置在起落架支柱的一侧,所述起落架假轮(1)的中心设置有用于与所述起落架支柱连接的轮轴(11),底端设置有接地点侧向载荷加载接头(12),前端以及后端均设置有轮轴航向载荷加载接头(13)；所述夹板(2)的上侧固定在所述轮轴航向载荷加载接头(13)上,所述夹板(2)的下侧设置有接地点航向载荷加载接头(21)。本申请结构简单,适用于多数起落架轮胎接地点航向及侧向载荷的施加,具有较强的通用性；加工要求低,试验成本低；安装简单,便于试验实施。(The application belongs to the technical field of strength structure tests, in particular to a structure is applyed to undercarriage strength test tire ground point load. The method comprises the following steps: a false wheel (1) of the landing gear and a splint (2). The undercarriage false wheel (1) is arranged on one side of an undercarriage support column, a wheel shaft (11) used for being connected with the undercarriage support column is arranged in the center of the undercarriage false wheel (1), a grounding point lateral load loading joint (12) is arranged at the bottom end of the undercarriage false wheel, and wheel shaft heading load loading joints (13) are arranged at the front end and the rear end of the undercarriage false wheel; the upper side of the clamping plate (2) is fixed on the wheel shaft course load loading joint (13), and the lower side of the clamping plate (2) is provided with a grounding point course load loading joint (21). The landing gear is simple in structure, suitable for applying the heading and the lateral load of the ground points of the tires of most landing gears, and high in universality; the processing requirement is low, and the test cost is low; the installation is simple, and the experimental implementation of being convenient for.)

1. The utility model provides a structure is applyed to undercarriage intensity test tire ground point load which characterized in that includes:

the undercarriage false wheel (1) is arranged on one side of an undercarriage support column, an axle (11) used for being connected with the undercarriage support column is arranged in the center of the undercarriage false wheel (1), a grounding point lateral load loading joint (12) is arranged at the bottom end of the undercarriage false wheel, and an axle heading load loading joint (13) is arranged at each of the front end and the rear end of the undercarriage false wheel;

the upper side of the clamping plate (2) is fixed on the wheel shaft course load loading joint (13), and the lower side of the clamping plate (2) is provided with a grounding point course load loading joint (21).

2. The landing gear strength test tire ground point load applying structure according to claim 1, wherein the ground point side load application joint (12) is welded and fixed to the landing gear false wheel (1).

3. The landing gear strength test tire grounding point load applying structure according to claim 1, wherein the axle heading load applying joint (13) is welded and fixed to the landing gear false wheel (1).

4. The landing gear strength test tire grounding point load applying structure according to claim 1, wherein the upper side of the clamping plate (2) is fixed to the axle heading load applying joint (13) by means of a countersunk screw.

5. The landing gear strength test tire ground point load applying structure according to claim 1, wherein the ground point heading load applying joint (21) is a double-lug structure, each lug extending a predetermined length above the cleat plate (2).

6. The landing gear strength test tire grounding point load applying structure according to claim 5, characterized in that the grounding point heading load applying joint (21) is welded and fixed with the clamping plate (2).

7. The landing gear strength test tire grounding point load applying structure according to claim 1, characterized in that a reinforcing rib is provided between the cleat plate (2) provided on the front-end axle heading load nipple (13) and the cleat plate (2) provided on the rear-end axle heading load nipple (13).

8. The landing gear strength test tire ground point load applying structure according to claim 7, wherein the reinforcing ribs are installed between two clamping plates (2) by countersunk screws, and a plurality of the reinforcing ribs are symmetrically arranged on the clamping plates (2).

Technical Field

The application belongs to the technical field of strength structure tests, in particular to a structure is applyed to undercarriage strength test tire ground point load.

Background

In the aircraft structural strength test, the undercarriage test is one of important projects and comprises a plurality of test working conditions, the test load of part of the working conditions comprises a tire grounding point load, and the grounding point load comprises a course load and a lateral load. The landing gear dummy used for loading in the test did not provide enough load applying joints at the dummy wheel ground contact to apply both lateral and heading loads.

Accordingly, a technical solution is desired to overcome or at least alleviate at least one of the above-mentioned drawbacks of the prior art.

Disclosure of Invention

The utility model provides a structure is applyed to landing gear strength test tire ground point load to solve at least one problem that prior art exists.

The technical scheme of the application is as follows:

a structure is applyed to undercarriage strength test tire ground point load, includes:

the undercarriage false wheel is arranged on one side of the undercarriage support column, a wheel shaft used for being connected with the undercarriage support column is arranged in the center of the undercarriage false wheel, a grounding point lateral load loading joint is arranged at the bottom end of the undercarriage false wheel, and wheel shaft heading load loading joints are arranged at the front end and the rear end of the undercarriage false wheel;

the upper side of the clamping plate is fixed on the wheel shaft course load loading joint, and the lower side of the clamping plate is provided with a grounding point course load loading joint.

Optionally, the grounding point side load loading joint is welded and fixed with the landing gear false wheel.

Optionally, the axle heading load-bearing joint is welded to the landing gear false wheel.

Optionally, the upper side of the clamping plate is fixed on the axle heading load-loading joint by a countersunk head screw.

Optionally, the grounding point and the load bearing joint are of a double-lug structure, and each lug extends to a preset length above the clamping plate.

Optionally, the grounding point and the load bearing joint are welded and fixed with the clamping plate.

Optionally, a reinforcing rib is arranged between the clamping plate arranged on the front-end axle heading load-loading joint and the clamping plate arranged on the rear-end axle heading load-loading joint.

Optionally, the reinforcing rib is mounted between the two clamping plates through countersunk head screws, and a plurality of reinforcing ribs are symmetrically arranged on the clamping plates.

The invention has at least the following beneficial technical effects:

the tire grounding point load applying structure for the undercarriage strength test has a simple structure, is suitable for applying the heading and lateral load of the grounding points of most of the undercarriage tires, and has strong universality; the processing requirement is low, and the test cost is low; the installation is simple, and the experimental implementation of being convenient for.

Drawings

FIG. 1 is a schematic view of the entire structure of the ground point load application of a landing gear strength test tire according to one embodiment of the present application;

FIG. 2 is a schematic illustration of a false landing gear wheel of a landing gear strength test tire ground contact point load applying structure according to one embodiment of the present application;

FIG. 3 is a cleat side view of a landing gear strength test tire ground contact point load applying structure according to one embodiment of the present application;

figure 4 is a top view of a cleat of a landing gear strength test tire ground contact point load applying structure according to one embodiment of the present application.

Wherein:

1-undercarriage false wheel; 11-a wheel axle; 12-ground point side load loading joint; 13-axle course load loading joint; 2-clamping plate; 21-ground point heading load joint.

Detailed Description

In order to make the implementation objects, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the drawings in the embodiments of the present application. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are a subset of the embodiments in the present application and not all embodiments in the present application. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application. Embodiments of the present application will be described in detail below with reference to the accompanying drawings.

In the description of the present application, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present application and for simplifying the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be construed as limiting the scope of the present application.

The present application is described in further detail below with reference to fig. 1 to 4.

The application provides a structure is applyed to undercarriage intensity test tire ground point load, includes: a landing gear false wheel 1 and a splint 2.

Specifically, a false wheel 1 of the undercarriage is arranged on one side of an undercarriage support, a wheel shaft 11 used for being connected with the undercarriage support is arranged in the center of the false wheel 1 of the undercarriage, a grounding point lateral load loading joint 12 is arranged at the bottom end of the false wheel, and wheel shaft heading load loading joints 13 are arranged at the front end and the rear end of the false wheel; the upper side of the clamping plate 2 is fixed on the wheel shaft course load joint 13, and the lower side of the clamping plate 2 is provided with a grounding point course load joint 21.

The utility model provides a structure is applyed to undercarriage intensity test tire ground point load, ground point lateral load loading joint 12 and undercarriage false wheel 1 can be through multiple mode fixed connection, for example welding, integrated into one piece. In this embodiment, the grounding point lateral load loading joint 12 is of a single-lug structure, and the grounding point lateral load loading joint 12 and the landing gear false wheel 1 are fixed through welding. The axle heading load joint 13 and the landing gear false wheel 1 can be fixedly connected in various ways, such as welding and integral forming. In the embodiment, the axle heading load loading joint 13 and the landing gear false wheel 1 are fixed by welding.

The utility model provides a structure is applyed to undercarriage intensity test tire ground point load, splint 2 include two, can be arbitrary shape, and in this embodiment, splint 2 are the rectangle, and its upside is opened and is equipped with a plurality of screw holes, fixes on shaft course load loading connects 13 through a plurality of countersunk screw, as new shaft course load loading position, does not influence the application of shaft department course load.

The utility model provides a structure is applyed to undercarriage intensity test tire ground point load, ground point course load loading joint 21 and splint 2 can be through multiple mode fixed connection, for example welding, integrated into one piece. In one embodiment of the application, the grounding point and the load bearing joint 21 are welded to the clamping plate 2. In this embodiment, the grounding point heading load joint 21 is a double-lug structure, and each lug extends to a predetermined length above the clamping plate 2, so as to increase the stability.

Advantageously, in one embodiment of the present application, a reinforcing rib is provided between the clamping plate 2 provided on the front-end axle heading load-applying joint 13 and the clamping plate 2 provided on the rear-end axle heading load-applying joint 13, the reinforcing rib can be mounted on the clamping plate 2 by countersunk screws, and a plurality of reinforcing ribs are symmetrically arranged on the clamping plate 2.

The utility model provides a structure is applyed to undercarriage intensity test tire ground point load, be connected splint 2 through the shaft course load loading joint 13 with undercarriage false wheel 1, realize splint 2 external to undercarriage false wheel 1, do not influence shaft department course load and ground point lateral load and apply, and through install ground point course load loading joint 21 on splint 2, realize applying of ground point course load, the coordinate is unanimous with the experimental requirement, splint 2 structural design strengthening rib, improve whole bending resistance, processing is simple, and it is convenient to install.

According to the tire grounding point load applying structure for the undercarriage strength test, the wheel axle course load loading joint 13 on the undercarriage false wheel 1 is utilized, the special grounding point loading structure is externally connected to the undercarriage false wheel 1, a new loading joint is generated, the new loading joint can meet the requirement of grounding point load loading, the course and the lateral load at the wheel axle are not influenced, and the load application of the grounding point lateral load loading joint 12 is not influenced; after the special loading structure is connected with the false wheel 1 of the undercarriage, the coordinate of the generated grounding point course load applying joint 21 is consistent with the test requirement; the special loading structure has stronger bending resistance, and does not generate obvious deformation when the load of the grounding point is applied. The landing gear is simple in structure, suitable for applying the heading and the lateral load of the ground points of the tires of most landing gears, and high in universality; the processing requirement is low, and the test cost is low; the installation is simple, and the experimental implementation of being convenient for.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.