CN219467460U

CN219467460U - Limiting connection structure for wheel hub and wheel rim of airplane

Info

Publication number: CN219467460U
Application number: CN202320506825.5U
Authority: CN
Inventors: 余江; 李国胜; 李倩; 何君林; 徐麒; 马新刚
Original assignee: Xian Aviation Brake Technology Co Ltd
Current assignee: Xian Aviation Brake Technology Co Ltd
Priority date: 2023-03-15
Filing date: 2023-03-15
Publication date: 2023-08-04
Anticipated expiration: 2033-03-15

Abstract

The utility model belongs to the technical field of airplane wheel design, and relates to an airplane wheel hub and rim limiting and connecting structure, which comprises the following components: the hub, the rim and two identical half collars; the two half clamping rings form a complete clamping ring, the cross section of the half clamping ring consists of a right trapezoid and a 3/4 circle, the radius of the 3/4 circle is equal to the length of the upper bottom edge of the right trapezoid, and the circle center coincides with the intersection point of the right-angle side and the upper bottom edge of the right trapezoid; the outer side surface of the hub is provided with a first annular groove; the inner side surface of the rim is provided with a second annular groove corresponding to the first annular groove in axial position; the cross section of the first annular groove and the second annular groove after being spliced is the same as the cross section of the half-collar.

Description

Limiting connection structure for wheel hub and wheel rim of airplane

Technical Field

The utility model belongs to the technical field of airplane wheel design, and relates to a limiting and connecting structure for an airplane wheel hub and an airplane wheel rim.

Background

At present, a structure is designed according to the requirements of the wheel rim and the wheel hub of a series of inner tube aircraft and the working condition requirements of the wheel connection so as to meet the requirements of the wheel connection.

The connection of the wheel rim and the wheel hub at the present stage adopts a two-section semicircular collar structure, and the two-section semicircular rings are connected by using a fuse, so that the parts used by the structure are more, the position of the collar on the circumferential direction cannot be well limited, the connection reliability is lower, and when the wheel vibrates, the wheel rim cannot better meet the positioning requirement.

For example, patent CN202120127714.4 discloses a three-piece flat bottom wheel, which comprises a rim body and a lock ring, wherein a retainer ring is sleeved on the rim body, the inner side of the retainer ring is clamped at one end of the lock ring, one side of the seal ring is tightly attached to the outer side of the retainer ring, and the other side of the seal ring is tightly attached to the rim body; the inner side of the check ring is provided with a check ring plane part, a check ring protruding part and a check ring recessed part which are connected, one end of the check ring is provided with a check ring plane part, a check ring recessed part and a check ring protruding part which are connected, when the wheel is not stressed, the check ring plane part is tightly attached to the check ring plane part, and when the wheel is stressed in walking, the check ring protruding part is tightly attached to the check ring recessed part, and the check ring recessed part is tightly attached to the check ring protruding part.

For example, patent CN201721586323.9 presents a wheel assembly in an aircraft brake wheel, providing a wheel assembly in an aircraft brake wheel, comprising a hub body, a rim, a rail device, a bearing device, a gear, a sealing device and an adjusting bush, the rim being fixedly arranged on one end of an outer ring of the hub body, the rail device being fixedly arranged on an outer side wall of an annular groove of the hub body, the bearing device being fixedly arranged in a central hole of the hub body.

Disclosure of Invention

In order to overcome the problems, the utility model provides a limit connection structure for a wheel hub and a wheel rim of an airplane.

The technical proposal is as follows:

an aircraft wheel hub, spacing connection structure of rim includes: the hub, the rim and two identical half collars;

the two half clamping rings form a complete clamping ring, the cross section of the half clamping ring consists of a right trapezoid and a 3/4 circle, the radius of the 3/4 circle is equal to the length of the upper bottom edge of the right trapezoid, and the circle center coincides with the intersection point of the right-angle side and the upper bottom edge of the right trapezoid;

the outer side surface of the hub is provided with a first annular groove;

the inner side surface of the rim is provided with a second annular groove corresponding to the first annular groove in axial position;

the cross section of the first annular groove and the second annular groove after being spliced is the same as the cross section of the half-collar.

Further, one end of each half-collar is provided with a clamping head, and the clamping head consists of a cylinder and a hemisphere at one end of the cylinder;

two concave clamping grooves are symmetrically arranged on the first annular groove and the second annular groove relative to the axis of the hub, and the two concave clamping grooves are matched with the shape of the clamping head after being spliced.

Further, the concave clamping groove is communicated with the end face of the hub, and the concave clamping groove is communicated with the end face of the rim.

Further, the included angle between the inclined side and the right angle side of the right trapezoid is 3-10 degrees.

Further, the cross section of the first annular groove is semicircular, and the radius is the same as the radius of a 3/4 circle;

the cross section of the second annular groove consists of a right trapezoid and a 1/4 circle, the radius of the 1/4 circle is equal to the length of the upper bottom edge of the right trapezoid, one radius of the 1/4 circle is parallel to the right-angle side of the right trapezoid, and the other radius of the 1/4 circle is coincident with the upper bottom edge.

Further, the radius of the chuck cylinder is 1 mm-3 mm greater than the radius of the 3/4 circle.

Compared with the prior art, the application has the following technical effects:

the anti-loosening device does not need other parts, has a simple and compact structure, is easy to disassemble and assemble, can bear the loads such as extrusion, impact and vibration, and has good anti-loosening performance.

Drawings

In order to more clearly illustrate the embodiments of the present utility model, specific drawings of the embodiments will be described.

FIG. 1 is a general assembly view of a wheel;

FIG. 2 is an exploded view of the wheel assembly;

FIG. 3 is a hub axle side view;

FIG. 4 is a collar isometric view;

FIG. 5 is a rim isometric view;

FIG. 6 is a partial front view of the semi-collar portion assembled with the rim hub;

FIG. 7 is a partial front view of the half collar clip head assembled with the rim hub;

FIG. 8 is a partial top view of the half collar clip head assembled with the rim hub;

in the figure: 1-a hub; 2-half collar; 3-half collar; 4-rim.

Detailed Description

In order to make the technical solutions and advantages of the present utility model more apparent, the technical solutions in the embodiments of the present utility model will be described in detail and fully with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.

The utility model is described in further detail below with reference to the attached drawing figures:

an aircraft wheel hub, rim limit connection structure, as shown in fig. 1 and 2, is composed of: the wheel hub is matched and connected with the wheel rim, and the half clamping ring is matched and connected with the wheel hub and clamping grooves on the wheel rim.

Further, as shown in fig. 3, the hub 1 is provided with a concave clamping groove and a limiting hole with a cross section of 2/4 circle.

Further, as shown in fig. 5, the cross section of the rim 4 is a concave clamping groove and a limiting hole with 1/4 circle.

Further, as shown in FIG. 4, the two half clamping rings are provided with corresponding 3/4 circular convex rings and clamping heads

Further, when the wheel is assembled, the tire is mounted on the hub 1.

Further, the rim 4 is mounted on the hub 1 as shown in fig. 1.

Further, the collar is placed in a concave clamping groove on the hub 1.

Further, the tire is inflated.

Further, the rim 4 is naturally pressed against the hub 1 by the air pressure.

Further, positioning of the hub 1, the rim 4 axially and circumferentially is achieved.

As can be seen from the general assembly of fig. 1, the coupling of the wheels is jointly accomplished by the tire pressure, the hub 1, the half collar 2, the half collar 3 and the shape-characteristic structure of the rim 4.

As shown in fig. 6-8, when the wheel is assembled, the concave clamping grooves on the wheel hub 1 and the wheel rim 4 are aligned in the axial direction, the limit holes on the wheel hub 1 and the wheel rim 4 are aligned in the radial direction, the concave clamping grooves on the wheel hub 1 and the wheel rim 4 are matched with the convex rings on the clamping rings, and the limit holes on the wheel hub 1 and the wheel rim 4 are matched with the clamping heads on the clamping rings. The convex ring on the half clamping ring is clamped into the concave clamping groove to realize the axial connection of the hub 1 and the rim 4; the clamping head on the half clamping ring is clamped into the limiting hole to realize circumferential connection of the hub 1 and the rim 4, the structure is simple and compact, the structure is easy to disassemble and assemble, the clamping head can bear loads such as extrusion, impact and vibration, good looseness resistance is achieved, the connection reliability is high, normal operation of the machine wheel is guaranteed, and therefore the overall stability of the machine wheel is improved.

Claims

1. An aircraft wheel hub, spacing connection structure of rim, its characterized in that: the structure comprises: the hub, the rim and two identical half collars;

the outer side surface of the hub is provided with a first annular groove;

2. The structure according to claim 1, characterized in that:

one end of each half-clamping ring is provided with a clamping head, and the clamping head consists of a cylinder and a hemisphere at one end of the cylinder;

3. The structure according to claim 2, characterized in that: the concave clamping groove is communicated with the end face of the hub, and the concave clamping groove is communicated with the end face of the rim.

4. The structure according to claim 1, characterized in that: the included angle between the bevel edge and the right angle edge of the right trapezoid is 3-10 degrees.

5. The structure according to claim 1, characterized in that: the cross section of the first annular groove is semicircular, and the radius is the same as the radius of a 3/4 circle;

6. The structure according to claim 1, characterized in that: the radius of the chuck cylinder is 1 mm-3 mm greater than the radius of the 3/4 circle.