CN216178163U

CN216178163U - Aircraft actuator cylinder piston rod end bearing dismantles frock

Info

Publication number: CN216178163U
Application number: CN202122681283.9U
Authority: CN
Inventors: 孙若松; 何庆柱; 孙艳娜; 李海峰; 张弼君; 李焕强
Original assignee: Shenyang North Aircraft Maintenance Co ltd
Current assignee: Shenyang North Aircraft Maintenance Co ltd
Priority date: 2021-11-04
Filing date: 2021-11-04
Publication date: 2022-04-05
Anticipated expiration: 2031-11-04

Abstract

The utility model discloses a tool for disassembling a bearing at the end head of a piston rod of an airplane actuator cylinder, which comprises a base, wherein a circular groove is formed in the upper end of the base, a central hole is formed in the center of the bottom in the circular groove, the base is connected with the lower end of a support plate, a connecting bolt is screwed in a threaded through hole formed in the upper end of the support plate, a limiting plate arranged at the lower end of the connecting bolt is sleeved in a limiting groove formed in the upper end of a first pressing plate, the end head of the actuator cylinder is placed at the upper end of the base, a positioning rod at the lower end of a second pressing plate is inserted into a ball bearing in the middle of the end head, and the second pressing plate presses the upper end of the ball bearing. When the ball bearing in the end head of the actuating cylinder is disassembled, the connecting bolt is rotated to drive the limiting plate and the first pressing plate to move downwards, and then downward force is applied to the second pressing plate and the ball bearing until the ball bearing is separated from the lower end of the end head; the whole ball bearing dismounting process is simple, convenient and quick to operate, and the end can not be damaged in the dismounting process.

Description

Aircraft actuator cylinder piston rod end bearing dismantles frock

Technical Field

The utility model relates to the technical field of aircraft maintenance, in particular to a tool for disassembling a bearing of a rod end of a piston rod of an aircraft actuator cylinder.

Background

When an airplane actuator cylinder is repaired, all sub-components of the actuator cylinder need to be decomposed, inspected, repaired and replaced, when the end part of a piston rod is inspected, the abrasion condition of a ball bearing in an end needs to be inspected, if the ball bearing is seriously abraded, the ball bearing needs to be replaced, at present, no proper tool is used for disassembling and replacing the ball bearing of the end, the end is generally placed on a workbench, the ball bearing is extruded by means of external force, and the damage to the contact surface of the end and the ball bearing is easily caused due to improper operation and uneven stress during extrusion, so that the use of the end is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a tool for disassembling a bearing of a rod end of a piston rod of an airplane actuator cylinder, so as to solve the problems in the background technology.

A bearing dismounting tool for an end of a piston rod of an airplane actuator cylinder comprises a base, wherein a circular groove is formed in the upper end of the base, a center hole is formed in the center of the bottom in the circular groove, planar external tangent surfaces are arranged on three side surfaces of the base, the lower ends of two symmetrical external tangent surfaces of the base are connected with the lower end of a support plate through a first connecting screw, a threaded through hole is formed in the middle of the upper horizontal plate of the support plate, a connecting bolt is screwed in the threaded through hole, a limiting plate is arranged at the lower end of the connecting bolt and sleeved in a limiting groove formed in the upper end of a first pressing plate, the cross section of the limiting groove is inverted T-shaped, the limiting plate can only rotate radially in the limiting groove and cannot move axially, and an axial thrust bearing is further arranged at the bottom in the limiting groove;

the end of the actuating cylinder is placed at the upper end of the base, a positioning rod at the lower end of a second pressing plate is inserted into a ball bearing in the middle of the end, the diameter of the upper end of the positioning rod is the same as the inner diameter of the ball bearing, the second pressing plate presses the upper end of the ball bearing, the lower end of the positioning rod is inserted into the center hole, and the diameter of the lower end of the positioning rod is the same as the inner diameter of the center hole.

Preferably, be connected with the lower extreme of locating plate through the second connecting screw on the outer tangent plane of front end of base, the base is extended to the upper end of locating plate, just the location circular slot has been seted up to the upper end of locating plate, in the oiling valve of end foremost inserted the location circular slot, can fix a position the oiling valve of end through the locating plate, promote the location effect of end.

Preferably, two mounting holes are symmetrically formed in the bottom of the circular groove, and long bolts penetrate through the mounting holes and are screwed on the workbench by workers to fix the base.

Preferably, the connecting bolt is a countersunk bolt, so that the connecting bolt can rotate conveniently.

Preferably, the lower surface of the first pressing plate is provided with a rubber pad, and the rubber pad can improve the friction force of the lower surface of the first pressing plate and play a role in buffering pressure.

Compared with the prior art, the utility model has the beneficial effects that:

when an inner ball bearing at the end of the actuating cylinder is disassembled, the base is fixedly arranged on the workbench, the end is placed at the upper end of the base, the support plate is arranged on the base through a first connecting screw, the first pressing plate is positioned at the upper end of the ball bearing, and the positioning rod penetrates through the ball bearing and is inserted into a central hole of the base; the connecting bolt is rotated to move downwards, the connecting bolt drives the limiting plate and the first pressing plate to move downwards, after the first pressing plate is pressed down to the second pressing plate at the upper end of the ball bearing, the first pressing plate and the second pressing plate are kept relatively fixed under the action of the axial thrust bearing, and the first pressing plate applies downward force to the ball bearing until the ball bearing is separated from the lower end of the end head;

the whole ball bearing dismounting process is simple, convenient and quick to operate, other equipment is not needed, the ball bearing can be observed in real time in the extruding process, the force of the first pressing plate and the force of the second pressing plate directly act on the ball bearing in the dismounting process, and the end can not be damaged in the dismounting process.

Drawings

FIG. 1 is a front sectional view of the present invention;

FIG. 2 is a top view of the present invention;

FIG. 3 is a side view of the present invention;

FIG. 4 is a front sectional view of the present invention in use;

fig. 5 is a schematic view of the actuator cylinder of the present invention.

In the figure: 1. the base, 101, circular slot, 102, centre bore, 103, mounting hole, 104, circumscribed face, 2, mounting panel, 201, screw through-hole, 21, first connecting screw, 3, locating plate, 301, location circular slot, 31, second connecting screw, 4, connecting bolt, 5, limiting plate, 6, first clamp plate, 601, spacing groove, 61, rubber pad, 7, axial thrust bearing, 8, second clamp plate, 81, locating lever, 9, actuator cylinder, 91, end, 92, ball bearing, 93, oiling valve.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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 invention.

Referring to fig. 1-5, the tool for disassembling the end bearing of the piston rod of the aircraft actuator cylinder comprises a base 1, wherein a circular groove 101 is formed in the upper end of the base 1, a central hole 102 is formed in the center of the bottom in the circular groove 101, two mounting holes 103 are symmetrically formed in the bottom in the circular groove 101, and when the ball bearing 92 in the end 91 of the actuator cylinder 9 is disassembled, a worker penetrates a long bolt through the mounting holes 103 to be screwed on a workbench to fix the base 1; the three side surfaces of the base 1 are provided with plane external tangent planes 104, the two symmetrical external tangent planes 104 of the base 1 are connected with the lower end of a support plate 2 through first connecting screws 21, the middle position of a horizontal plate at the upper end of the support plate 2 is provided with a threaded through hole 201, a connecting bolt 4 is screwed in the threaded through hole 201, the connecting bolt 4 is a countersunk bolt, the rotation of the connecting bolt 4 is facilitated, the lower end of the connecting bolt 4 is provided with a limit plate 5, the connecting bolt 4 rotates downwards, the connecting bolt 4 drives the limit plate 5 to move downwards, the limit plate 5 is sleeved in a limit groove 601 arranged at the upper end of a first pressing plate 6, the cross section of the limit groove 601 is inverted T-shaped, so that the limit plate 5 can only rotate in the limit groove 601 in the radial direction and can not move in the axial direction, the lower surface of the first pressing plate 6 is provided with a rubber pad 61, and the rubber pad 61 can improve the friction force of the lower surface of the first pressing plate 6, the axial thrust bearing 7 is arranged at the bottom in the limiting groove 601;

the lower extreme that is connected with locating plate 3 through second connecting screw 31 on base 1's the outer tangent plane 104 of front end, base 1 is extended to the upper end of locating plate 3, just locating circular slot 301 has been seted up to the upper end of locating plate 3, in the last oiling valve 93 of front end of end 91 inserted locating circular slot 301, can fix a position oiling valve 93 of end 91 through locating plate 3, promote the location effect of end 91.

An end 91 of the actuating cylinder 9 is placed at the upper end of the base 1, a positioning rod 81 at the lower end of the second pressure plate 8 is inserted into a ball bearing 92 in the middle of the end 91, the diameter of the upper end of the positioning rod 81 is the same as the inner diameter of the ball bearing 92, the second pressure plate 8 is pressed at the upper end of the ball bearing 92, the lower end of the positioning rod 81 is inserted into a center hole 102, and the diameter of the lower end of the positioning rod 81 is the same as the inner diameter of the center hole 102.

The working principle is as follows: when the ball bearing 92 in the end 91 of the actuating cylinder 9 is disassembled, the base 1 is fixedly arranged on a workbench, the end 91 is placed at the upper end of the base 1, the bracket plate 2 is arranged on the base 1 through the first connecting screw 21, and the positioning rod 81 penetrates through the ball bearing 92 and is inserted into the central hole 102 of the base 1; the connecting bolt 4 is rotated to move downwards, and the connecting bolt 4 drives the limiting plate 5, the first pressing plate 6 and the second pressing plate 8 to move downwards until the ball bearing 92 is separated from the lower end of the end head 91.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides an aircraft actuator cylinder piston rod end bearing dismantles frock, includes base (1), its characterized in that: the upper end of the base (1) is provided with a circular groove (101), the center of the bottom in the circular groove (101) is provided with a center hole (102), three side surfaces of the base (1) are provided with planar outer tangent surfaces (104), two symmetrical outer tangent surfaces (104) of the base (1) are connected with the lower end of a support plate (2) through first connecting screws (21), the middle position of a horizontal plate at the upper end of the support plate (2) is provided with a threaded through hole (201), a connecting bolt (4) is screwed in the threaded through hole (201), the lower end of the connecting bolt (4) is provided with a limiting plate (5), the limiting plate (5) is sleeved in a limiting groove (601) formed in the upper end of a first pressing plate (6), and the bottom in the limiting groove (601) is also provided with an axial thrust bearing (7);

an end head (91) of the actuating cylinder (9) is placed at the upper end of the base (1), a positioning rod (81) at the lower end of a second pressing plate (8) is inserted into a ball bearing (92) in the middle of the end head (91), the second pressing plate (8) is pressed at the upper end of the ball bearing (92), and the lower end of the positioning rod (81) is inserted into a center hole (102).

2. The aircraft ram end bearing disassembly tool of claim 1, wherein: the oil injection valve is characterized in that the lower end of the positioning plate (3) is connected to the front end outer tangent plane (104) of the base (1) through a second connecting screw (31), the base (1) extends out of the upper end of the positioning plate (3), a positioning circular groove (301) is formed in the upper end of the positioning plate (3), and the oil injection valve (93) at the foremost end of the end head (91) is inserted into the positioning circular groove (301).

3. The aircraft ram end bearing disassembly tool of claim 1, wherein: two mounting holes (103) are symmetrically formed in the bottom of the circular groove (101).

4. The aircraft ram end bearing disassembly tool of claim 1, wherein: the connecting bolt (4) is a countersunk bolt.

5. The aircraft ram end bearing disassembly tool of claim 1, wherein: the lower surface of the first pressing plate (6) is provided with a rubber pad (61).