CN212706531U - Bushing pulling device suitable for aircraft maintenance - Google Patents

Abstract

The utility model discloses a bush is pulled out and is put suitable for aircraft maintenance, including the handle, the connecting axle, first rotor plate and second rotor plate, at adjusting nut, the screw rod, first rotor plate, under the setting of second rotor plate and laminating claw, the angle of opening and shutting of two laminating claws of adjustment can the bush of the different internal diameters of adaptation, because its angle of opening and shutting adjustment range is great, make the suitability of pulling out the device improve greatly, can carry out the one-level regulation to the laminating degree of laminating claw under the effect of adjusting nut and spring, can be to the second grade regulation that carries out of the laminating degree of laminating claw under adjustment mechanism's effect, the bush is pressed close to more to the laminating claw in the two-stage regulation makes the laminating claw, can effectively avoid appearing in the condition of pulling out in-process slippage, to sum, the utility model discloses when being used for pulling out the bush when aircraft maintenance, the suitability is high, labour saving and time saving.

Description

Bushing pulling device suitable for aircraft maintenance

Technical Field

The utility model relates to an aviation maintenance field especially relates to bush pulling device suitable for aircraft maintenance.

Background

An aerospace repair is the maintenance and repair of an aircraft and its technical equipment. The feasibility of the airplane is kept improved, and the safety of the airplane is ensured. Is a prerequisite and a necessary condition for the use of the airplane and is also an important component of the aviation industry.

The aircraft engine is the heart of the aircraft, the maintenance of the aircraft engine is a part of the maintenance of the aircraft, and the maintenance of the aircraft engine generally comprises the processes of factory inspection, decomposition, washing, fault detection, repair, assembly debugging and final assembly.

The dismounting work of a large number of bearing bushings can be met in the process of disassembling the aircraft engine, the conventional dismounting mode is that a maintenance master extends into a narrow fit clearance of the maintenance master by using a nail to hook the bushing, or extends into a gap by using tools such as a screwdriver and the like to pry out the bushing, and the dismounting mode is very labor-consuming and time-consuming and is easy to damage the bushing; some present pulling tools are lower to the suitability of different bushes, and pull out the in-process at the bush because the not high condition that can often appear the slippage of the laminating degree of pulling out the device, and then influenced maintenance efficiency.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a bush pulling device suitable for aircraft maintenance to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

device is pulled out to bush suitable for aircraft maintenance, including handle, connecting axle, first rotor plate and second rotor plate, the handle is terminal to be rotated with the connecting axle and is connected, and first rotor plate and second rotor plate one end all rotate with the connecting axle and be connected, link firmly the screw rod on the second rotor plate, it has first bar hole to lead to on the first rotor plate, the screw rod end pass first bar hole and with first bar hole sliding connection, the screw rod end still is provided with the adjusting nut who matches with the screw rod, still be provided with the spring between first rotor plate and the second rotor plate, spring and screw rod the central axis collineation, first rotor plate and second rotor plate are kept away from connecting axle one end and are all rotated through the round pin axle and are connected with the laminating claw, first rotor plate and second rotor plate carry on the back mutually one side and all are provided with the adjustment mechanism who adjusts laminating claw angle.

The laminating claw includes segmental arc, straight section and oblique section, segmental arc, straight section and oblique section set gradually, the segmental arc sets up and is keeping away from connecting axle one side, and the angle that oblique section and straight section formed is the obtuse angle.

The arc section is sleeved with a rubber sleeve.

Adjustment mechanism includes adjusting lever and set screw, adjusting lever one end is provided with second bar hole, is provided with the slip round pin axle on the laminating claw, slip round pin axle and second bar hole sliding connection, and the adjusting lever other end is provided with the spacing lantern ring, is provided with set screw in the spacing lantern ring, first rotor plate and second rotor plate are carried on the back mutually one side and all are led to a plurality of location screw holes that match with set screw.

And sliding grooves are formed in the opposite sides of the first rotating plate and the second rotating plate and are connected with the adjusting rod in a sliding mode.

The utility model has the advantages that:

1. under the setting of adjusting nut, screw rod, first rotating plate, second rotating plate and laminating claw, the angle of opening and shutting of adjusting two laminating claws can the different internal diameters of bush, because its angle of opening and shutting adjustment scope is great for the suitability of device of pulling improves greatly.

2. Can carry out one-level regulation to the laminating degree of laminating claw under the effect of adjusting nut and spring, can be to the laminating degree of laminating claw carry out the second grade under adjustment mechanism's effect and adjust, the bush is pressed close to more to the two-stage regulation messenger laminating claw, can effectively avoid appearing in the condition of pulling out the in-process slippage.

To sum up, the utility model discloses when being used for pulling out the bush when aircraft maintenance, the suitability is high, labour saving and time saving, and the practicality is strong.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

fig. 3 is a schematic structural view of the first rotating plate in the direction B in fig. 1 according to the present invention;

fig. 4 is a schematic structural view of a second rotating plate in the direction C in fig. 1 according to the present invention;

fig. 5 is a schematic structural view of the first rotating plate in the direction D in fig. 1 according to the present invention;

FIG. 6 is a schematic structural view of a middle attaching claw according to the present invention;

fig. 7 is a schematic structural diagram of the adjusting rod of the present invention.

In the figure, a handle 1, a connecting shaft 2, a first rotating plate 3, an adjusting nut 4, a screw rod 5, a second rotating plate 6, a spring 7, an adjusting rod 8, a second strip-shaped hole 81, a sliding pin shaft 9, a limiting lantern ring 10, a positioning screw hole 11, a positioning screw 12, a pin shaft 13, a fitting claw 14, an arc section 141, a straight section 142, an inclined section 143, a first strip-shaped hole 15 and a sliding groove 16.

Detailed Description

The technical solution of the present invention is described in further detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the following description.

Referring to fig. 1 to 7, an embodiment of the present invention provides a bushing pulling device suitable for aircraft maintenance, including a handle 1, a connecting shaft 2, a first rotating plate 3 and a second rotating plate 6, wherein the end of the handle 1 is rotatably connected to the connecting shaft 2, and the handle 1 is designed with a handheld portion for a maintenance master to perform a handheld operation.

First rotating plate 3 and 6 one end of second rotating plate all rotate with connecting axle 2 and be connected, the welding has screw rod 5 on the second rotating plate 6, it has first bar hole 15 to lead to on the first rotating plate 3, 5 end of screw rod pass first bar hole 15 and with first bar hole 15 sliding connection, 5 end of screw rod still are provided with the adjusting nut 4 that matches with screw rod 5, still be provided with spring 7 between first rotating plate 3 and the second rotating plate 6, spring 7 and 5 the central axis collineation of screw rod, spring 7 suit is in the 5 outsides of screw rod, spring 7 bottom is the optional and is linked firmly with second rotating plate 6, spring 7 is compression state in figure 1.

First rotating plate 3 and second rotating plate 6 keep away from connecting axle 2 one end and all rotate through round pin axle 13 and be connected with laminating claw 14, refer to fig. 6, laminating claw 14 includes arc 141, straight section 142 and oblique section 143, arc 141, straight section 142 and oblique section 143 set gradually, arc 141 sets up and is keeping away from connecting axle 2 one side, the angle that oblique section 143 and straight section 142 formed is the obtuse angle, round pin axle 13 sets up the junction at straight section 142 and oblique section 143, the cover is equipped with the rubber sleeve that is used for protecting the bush when pulling out the operation on arc 141.

First rotating plate 3 and the 6 one side that backs on the back of the body of second rotating plate (refer to fig. 1 and back of the body one side that is 3 upsides of first rotating plate and 6 downside of second rotating plate) all are provided with the adjustment mechanism who adjusts 14 angles of laminating claw, adjustment mechanism includes adjusting lever 8 and set screw 12, first rotating plate 3 and the 6 one side that backs on the back of the body of second rotating plate all are provided with spout 16, spout 16 and 8 sliding connection of adjusting lever, 8 one end of adjusting lever is provided with second bar hole 81, be provided with slip pin 9 on the laminating claw 14, slip pin 9 and second bar hole 81 sliding connection, the 8 other end of adjusting lever is provided with the spacing lantern ring 10, be provided with set screw 12 in the spacing lantern ring 10, first rotating plate 3 and 6 one side that backs on the back of the body all lead to a plurality of location screw 11.

The working principle is as follows:

adjustment of the opening and closing angle:

referring to fig. 1, the adjusting nut 4 is rotated to move the adjusting nut 4 upwards (downwards) along the screw 5, the first rotating plate 3 and the second rotating plate 6 are opened (recovered) under the action of the spring 7, and the opening angles of the two attaching claws 14 can be adjusted to adapt to the bushings with different inner diameters, and the adjustment range of the opening and closing angles is large, so that the adaptability of the pulling device is greatly improved.

Adjustment of the degree of fitting of the fitting claw 14:

primary adjustment:

after the pulling device extends into the lining, the adjusting nut 4 is rotated to enable the adjusting nut 4 to move upwards for a short distance along the screw rod 5, and the arc section 141 of the attaching claw 14 is closer to the lining.

Secondary regulation:

the positioning screw 12 is screwed out, referring to fig. 1, the adjusting rod 8 is pulled to the right side, so that the attaching claw 14 can rotate around the pin shaft 13, and the arc section 141 of the attaching claw 14 hooks the bushing and then the positioning screw 12 is screwed into the positioning screw hole 11 below to be locked.

The two-stage adjustment enables the fitting claw 14 to be closer to the bushing, and the slipping in the pulling process can be effectively avoided.

After the laminating degree is adjusted and is accomplished, the maintenance master holds handle 1 and outwards pulls and can easily extract the bush (at the pulling in-process, because handle 1 rotates with connecting axle 2 to be connected, can keep handle 1 and bush axis to be similar to the coincidence application of force again, can guarantee to a certain extent that the bush can not the atress warp), labour saving and time saving, the practicality is strong.

The foregoing is illustrative of the preferred embodiments of the present invention, and it is to be understood that the invention is not limited to the precise forms disclosed herein, and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the invention as defined by the appended claims. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.

Claims (5)

1. Device is pulled out to bush suitable for aircraft maintenance, including handle (1), connecting axle (2), first rotor plate (3) and second rotor plate (6), its characterized in that: handle (1) end is rotated with connecting axle (2) and is connected, and first rotor plate (3) and second rotor plate (6) one end all rotate with connecting axle (2) and be connected, link firmly screw rod (5) on second rotor plate (6), lead to on first rotor plate (3) first bar hole (15), screw rod (5) end pass first bar hole (15) and with first bar hole (15) sliding connection, screw rod (5) end still is provided with adjusting nut (4) with screw rod (5) matching, still be provided with spring (7) between first rotor plate (3) and second rotor plate (6), spring (7) and screw rod (5) the central axis collineation, connecting axle (2) one end is kept away from in first rotor plate (3) and second rotor plate (6) all is connected with laminating claw (14) through round pin axle (13) rotation, first rotor plate (3) and second rotor plate (6) one side of the back of the body all is provided with and adjusts laminating claw (14) angle And (4) a degree adjusting mechanism.

2. A bushing extractor device adapted for aircraft servicing as claimed in claim 1, wherein: laminating claw (14) include arc section (141), straight section (142) and oblique section (143), arc section (141), straight section (142) and oblique section (143) set gradually, arc section (141) set up and keeping away from connecting axle (2) one side, and the angle that oblique section (143) and straight section (142) formed is the obtuse angle.

3. A bushing extraction device suitable for aircraft maintenance according to claim 2, wherein: the arc section (141) is sleeved with a rubber sleeve.

4. A bushing extractor device adapted for aircraft servicing as claimed in claim 1, wherein: adjustment mechanism includes adjusting lever (8) and set screw (12), adjusting lever (8) one end is provided with second bar hole (81), is provided with slip round pin axle (9) on laminating claw (14), and slip round pin axle (9) and second bar hole (81) sliding connection, adjusting lever (8) other end are provided with spacing lantern ring (10), are provided with set screw (12) in the spacing lantern ring (10), first rotor plate (3) and second rotor plate (6) one side of the back of the body all lead to a plurality of location screw (11) that match with set screw (12).

5. A bushing extraction device, adapted for aircraft servicing according to claim 4, wherein: and sliding grooves (16) are formed in the opposite sides of the first rotating plate (3) and the second rotating plate (6), and the sliding grooves (16) are connected with the adjusting rods (8) in a sliding mode.

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