CN216684903U

CN216684903U - Piston rod fixing device for repairing aircraft actuator cylinder

Info

Publication number: CN216684903U
Application number: CN202122681141.2U
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: 2022-06-07
Anticipated expiration: 2031-11-04

Abstract

The utility model discloses a piston rod fixing device for repairing an airplane actuator cylinder, which comprises a base, wherein two vertical plates are arranged at the upper end of the base in parallel, two positioning discs are symmetrically arranged in the two vertical plates, and the middle of each positioning disc is fixedly connected with the end of the actuator cylinder; the upper ends of the two positioning disks are provided with a plurality of pairs of arc-shaped protection plates, the arc-shaped protection plates are sleeved outside a piston rod of the actuating cylinder, the upper end and the lower end of each pair of arc-shaped protection plates are provided with four third positioning rods and four blind holes, and the two pairs of arc-shaped protection plates which are connected up and down are inserted into the blind holes through the second positioning rods and are connected; compared with the prior art, the utility model has the beneficial effects that: when the actuator cylinder is repaired, the two positioning disks are arranged on two sides of the end head of the actuator cylinder, and then the end head and the two positioning disks are inserted between the two vertical plates to keep the end head of the actuator cylinder and the piston rod in the vertical position; and then a plurality of pairs of arc-shaped protection plates are sleeved outside the piston rod to protect the piston rod, so that the mirror polished rod of the piston rod is prevented from being scratched.

Description

Piston rod fixing device for repairing aircraft actuator cylinder

Technical Field

The utility model relates to the technical field of maintenance of airplane components, in particular to a piston rod fixing device for repairing an airplane actuating cylinder.

Background

When repairing, disassembling or assembling an aircraft actuator cylinder, a piston rod needs to be fixed in a plurality of working steps so as to be convenient for disassembling components such as a piston, a gasket and a locking nut, at present, no special tool is used for fixing the piston rod and the end of the piston rod, a simple tool is generally used for pressing the end of the piston rod, and then disassembling or assembling operation is carried out.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a piston rod fixing device for repairing an aircraft actuator cylinder, so as to solve the problems of the background art.

A piston rod fixing device for repairing an airplane actuating cylinder comprises a base, wherein two vertical plates are arranged at the upper end of the base in parallel, two positioning discs are symmetrically arranged in the two vertical plates, the middle of each positioning disc is fixedly connected with an end head of the actuating cylinder, a circular groove is formed in the inner side of the positioning disc positioned at the right end, and the circular groove is used for positioning the part of the protruding end head of a ball bearing, a first positioning rod is arranged in the circular groove and is inserted into the ball bearing at the end head, a second positioning rod is mounted at the left end of the first positioning rod, the second positioning rod penetrates through a ball bearing and is inserted into a through hole formed in the middle of the left positioning plate, the first positioning rod and the second positioning rod connect the two positioning plates, an outer supporting part is arranged on the outer side of the upper ends of the two positioning plates, the lower surface of the outer supporting part is a plane, and the outer supporting part is placed on the upper surface of the vertical plate;

the upper ends of the two positioning disks are provided with a plurality of pairs of arc-shaped protection plates, the arc-shaped protection plates are sleeved outside a piston rod of the actuating cylinder, the upper ends of each pair of arc-shaped protection plates are symmetrically provided with four third positioning rods, the lower ends of each pair of arc-shaped protection plates are symmetrically provided with four blind holes, two pairs of arc-shaped protection plates which are connected up and down are inserted into the blind holes through the third positioning rods and are connected, and the adjacent arc-shaped protection plates are connected in a staggered manner; two first connecting rods are installed at the upper ends of the two positioning disks and inserted into blind holes in the bottoms of the arc-shaped guard plates at the lowest ends.

Preferably, every to the arc backplate includes two symmetrical connection's arc backplate, two the terminal surface of arc backplate is provided with the sliding part respectively and has seted up the spout, two insert the spout internal connection through the sliding part between the arc backplate, improve the connectivity between two arc backplates and the upper and lower two pairs of arc backplates.

Preferably, a clamping groove block is arranged inwards at the lower end of the positioning disc at the right end, an oil injection nozzle at the lower end of the end head is inserted into the clamping groove block, and the position of the oil injection nozzle is fixed by the clamping groove block.

Preferably, the vertical plates at the right end are provided with threaded through holes, positioning bolts are screwed in the threaded through holes from outside to inside, rubber pads are further arranged at ends of screws of the positioning bolts, the positioning bolts and the rubber pads are pressed against positioning disks by screwing the positioning bolts, and the positions of the two positioning disks in the two vertical plates are clamped and fixed.

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

when the actuator cylinder is repaired, the two positioning disks are arranged on two sides of the end head of the actuator cylinder, the end head and the two positioning disks are inserted between the two vertical plates, and the actuator cylinder can keep a vertical position and fix the end head and the piston rod under the action of the supporting force of the outer supporting part at the upper end of the positioning disk and the upper surfaces of the vertical plates, so that a user can conveniently disassemble or assemble the actuator cylinder;

when the actuating cylinder needs to be maintained in a vertical state for a long time during repair, the arc-shaped protection plates are installed outside the piston rod and are connected in a vertically staggered mode, the piston rod is protected, the mirror polished rod of the piston rod is prevented from being scratched, the arc-shaped protection plates are convenient to install, disassemble and take down, and therefore the actuating cylinder is convenient to use for workers.

Drawings

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

FIG. 2 is a front sectional view of the present invention in use;

FIG. 3 is a perspective view of the puck of the present invention;

FIG. 4 is a perspective view of the connection of upper and lower pairs of arc-shaped shields according to the present invention.

In the figure: 1. the oil injection device comprises a base, 2, a vertical plate, 201, a threaded through hole, 3, a positioning disc, 301, a circular groove, 302, a through hole, 31, a clamping groove block, 32, an outer supporting portion, 4, a first positioning rod, 41, a second positioning rod, 5, a positioning bolt, 51, a rubber pad, 6, a first connecting rod, 7, an arc-shaped protection plate, 701, a blind hole, 702, a sliding groove, 71, a third positioning rod, 72, a sliding portion, 8, an actuating cylinder, 81, an end head, 82, a ball bearing, 83, an oil injection nozzle, 84 and a piston rod.

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.

A piston rod fixing device for repairing an airplane actuator cylinder comprises a base 1, wherein two vertical plates 2 are installed at the upper end of the base 1 in parallel, two positioning discs 3 are symmetrically arranged in the two vertical plates 2, a threaded through hole 201 is formed in the vertical plate 2 located at the right end, a positioning bolt 5 is screwed in the threaded through hole 201 from outside to inside, a rubber pad 51 is further arranged at the end part of a screw rod of the positioning bolt 5, the positioning bolt 5 is screwed tightly, the end of the positioning bolt 5 and the rubber pad 51 are pressed against the positioning discs 3, and the positions of the two positioning discs 3 in the two vertical plates 2 are clamped and fixed; the middle of each positioning disk 3 is fixedly connected with an end 81 of an actuating cylinder 8, a circular groove 301 is formed in the inner side of the positioning disk 3 at the right end, a part, protruding out of the end 81, of a ball bearing 82 is positioned in the circular groove 301, a first positioning rod 4 is installed in the circular groove 301, the first positioning rod 4 is inserted into the ball bearing 82 of the end 81, a second positioning rod 41 is installed at the left end of the first positioning rod 4, the second positioning rod 41 penetrates through the ball bearing 82 and is inserted into a through hole 302 formed in the middle of the positioning disk 3 at the left end, the two positioning disks 3 are connected through the first positioning rod 4 and the second positioning rod 41, a clamping groove block 31 is arranged inwards at the lower end of the positioning disk 3 at the right end, an oil injection nozzle 83 at the lower end of the end 81 is inserted into the clamping groove block 31, and the position of the oil injection nozzle 83 is fixed through the clamping groove block 31; outer supporting parts 32 are arranged on the outer sides of the upper ends of the two positioning plates 3, the lower surfaces of the outer supporting parts 32 are planes, and the outer supporting parts 32 are placed on the upper surfaces of the standing plates 2; under the action of the supporting force of the outer supporting part 32 at the upper end of the positioning plate 3 and the upper surface of the vertical plate 2, the actuator cylinder can keep a vertical position, and the end 81 and the piston rod 84 are fixed, so that a user can conveniently disassemble or assemble the actuator cylinder.

A plurality of pairs of arc-shaped guard plates 7 are arranged at the upper ends of the two positioning discs 3, the arc-shaped guard plates 7 are sleeved outside the piston rod 84 of the actuating cylinder 8, each pair of arc-shaped guard plates 7 comprises two symmetrically-connected arc-shaped guard plates 7, the end surfaces of the two arc-shaped guard plates 7 are respectively provided with a sliding part 72 and a sliding groove 702, the two arc-shaped guard plates 7 are inserted into the sliding groove 702 through the sliding part 72 for connection, and the connectivity between the two arc-shaped guard plates 7 and the upper and lower pairs of arc-shaped guard plates 7 is improved; four third positioning rods 71 are symmetrically mounted at the upper end of each pair of arc-shaped protection plates 7, four blind holes 701 are symmetrically formed at the lower end of each pair of arc-shaped protection plates 7, two pairs of arc-shaped protection plates 7 which are connected up and down are inserted into the blind holes 701 through the third positioning rods 71 to be connected, and the adjacent arc-shaped protection plates 7 are connected in a staggered manner; two first connecting rods 6 are respectively installed at the upper ends of the two positioning disks 3, and the first connecting rods 6 are inserted into blind holes 701 at the bottom of the arc-shaped protection plate 7 at the lowest end; when the actuating cylinder 8 needs to be maintained in a vertical state for a long time during repair, the plurality of pairs of arc-shaped protection plates 7 are sleeved outside the piston rod 84 and are connected in a vertically staggered manner, the piston rod 84 is protected, the mirror polished rod of the piston rod 84 is prevented from being scratched, the arc-shaped protection plates 7 are convenient to install, disassemble and take down, and the actuating cylinder is convenient for workers to use.

The working principle is as follows: when repairing the actuator cylinder, two positioning disks 3 are arranged on two sides of an end 81 of the actuator cylinder 8, the end 81 and the two positioning disks 3 are inserted between two vertical plates 2, the actuator cylinder 8 can keep a vertical position under the action of supporting force of an outer supporting part 32 at the upper end of the positioning disk 3 and the upper surfaces of the vertical plates 2, and the end 81 and a piston rod 84 are fixed, so that a user can conveniently disassemble or assemble the actuator cylinder 8;

when the actuating cylinder 8 needs to be maintained in a vertical state for a long time during repair, a plurality of pairs of arc-shaped guard plates 7 are sleeved outside the piston rod 84 and are connected in a vertically staggered manner, so that the piston rod 84 is protected, and a mirror polished rod of the piston rod 84 is prevented from being scratched.

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. A piston rod fixing device for repairing an airplane actuating cylinder comprises a base (1) and is characterized in that: the upper end of the base (1) is parallelly provided with two vertical plates (2), two positioning disks (3) are symmetrically arranged in the two vertical plates (2), the middle of the two positioning disks (3) is fixedly connected with an end (81) of an actuating cylinder (8), the inner side of the positioning disk (3) at the right end is provided with a circular groove (301), a first locating rod (4) is arranged in the circular groove (301), the first locating rod (4) is inserted into a ball bearing (82) of the end head (81), a second positioning rod (41) is arranged at the left end of the first positioning rod (4), the second positioning rod (41) penetrates through a ball bearing (82) and is inserted into a through hole (302) formed in the middle of the left positioning disc (3), an outer supporting part (32) is arranged on the outer side of the upper ends of the two positioning discs (3), and the outer supporting part (32) is placed on the upper surface of the vertical plate (2);

a plurality of pairs of arc-shaped guard plates (7) are arranged at the upper ends of the two positioning disks (3), the arc-shaped guard plates (7) are sleeved outside piston rods (84) of actuating cylinders (8), four third positioning rods (71) are symmetrically installed at the upper ends of each pair of arc-shaped guard plates (7), four blind holes (701) are symmetrically formed in the lower ends of each pair of arc-shaped guard plates (7), the two pairs of arc-shaped guard plates (7) which are connected up and down are inserted into the blind holes (701) through the third positioning rods (71) to be connected, and the adjacent arc-shaped guard plates (7) are connected in a staggered mode; two first connecting rods (6) are installed at the upper ends of the positioning plates (3), and the first connecting rods (6) are inserted into blind holes (701) in the bottoms of the arc-shaped protection plates (7) at the lowest ends.

2. A piston rod securement device for use in repairing an aircraft ram, as claimed in claim 1, wherein: each pair of arc-shaped protection plates (7) comprises two symmetrically connected arc-shaped protection plates (7), the end faces of the two arc-shaped protection plates (7) are respectively provided with a sliding part (72) and a sliding groove (702), and the two arc-shaped protection plates (7) are inserted into the sliding groove (702) through the sliding part (72) to be connected.

3. A piston rod securement device for use in repairing an aircraft ram, as claimed in claim 1, wherein: the lower end of the positioning disc (3) positioned at the right end is inwards provided with a clamping groove block (31), and an oil injection nozzle (83) at the lower end of an end head (81) is inserted into the clamping groove block (31).

4. A piston rod securement device for use in repairing an aircraft ram, as claimed in claim 1, wherein: the vertical plate (2) at the right end is provided with a threaded through hole (201), a positioning bolt (5) is screwed in the threaded through hole (201) from outside to inside, and the end part of the screw rod of the positioning bolt (5) is further provided with a rubber pad (51).