CN218809891U

CN218809891U - Screw hoist and mount frock

Info

Publication number: CN218809891U
Application number: CN202223006438.XU
Authority: CN
Inventors: 施晓明; 王春慧; 毕夏松
Original assignee: AVIC Huiyang Aviation Propeller Co Ltd
Current assignee: AVIC Huiyang Aviation Propeller Co Ltd
Priority date: 2022-11-11
Filing date: 2022-11-11
Publication date: 2023-04-07
Anticipated expiration: 2032-11-11

Abstract

The utility model relates to a screw hoist and mount frock belongs to screw dismouting technical field, include: clamp, mortise lock, backup pad and be used for the hoist be connected with the crane, the one end of backup pad is fixed on the outer wall of clamp, and the both ends of backup pad apart from the clamp predetermined distance respectively extend to the axle center axis of clamp and the direction of perpendicular its central axis and form first connecting portion and second connecting portion. The utility model discloses a with hoist convertible connection on first connecting portion or second connecting portion, when the screw is horizontal installation, the hoist can be connected on the second connecting portion that extends along the clamp axial, and then carries out vertical lifting screw; when the propeller is vertically installed, the lifting appliance can be connected to the first connecting part extending along the radial direction of the hoop so as to vertically lift the propeller; thereby satisfying the hoist and mount requirement of screw under the different installation gestures, improving lifting device's flexibility and adaptability.

Description

Screw hoist and mount frock

Technical Field

The utility model relates to a screw dismouting technical field, in particular to screw hoist and mount frock.

Background

The propeller is a propulsion device commonly used for airplane flight or ship navigation, and the service performance of the propeller can be maintained only by regular maintenance after the airplane flight or the ship navigation is carried out for a period of time.

Before the screw maintenance, need use dedicated lifting device to lift by crane the dismantlement to avoid lifting rope or lifting hook to damage the screw, but the screw is either horizontal installation at the fuselage top, or vertical installation at the lateral part of fuselage, because two kinds of mounting means all need vertical lift by crane just can satisfy the requirement of dismantling, just also need different professional hoist just can satisfy the different mounted position of screw, for example a dismouting screw isolated plant that patent number is CN201245228Y, only can be applicable to and install the screw at the fuselage top and carry out vertical lifting. And the narrow and small space in maintenance workshop can be crowded to the professional hoist of multiple difference on the one hand, causes the confusion in maintenance scene, and on the other hand can increase cost of maintenance.

Therefore, how to design a special hoisting tool which is simultaneously suitable for hoisting a horizontally-installed propeller or a vertically-installed propeller is a problem to be solved urgently by the technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

The utility model provides a screw hoist and mount frock solves the screw in different installation position and needs different special lifting device's technical problem.

The technical scheme of the utility model for solving the technical problems is that the screw hoisting tool comprises a mounting disc, a plurality of blades and an oil cylinder, wherein the blades are mounted on the outer peripheral side of the mounting disc at intervals; the oil cylinder is arranged at the top end of the mounting disc; the method comprises the following steps: a clamp, a mortise lock, a support plate and a hanger for connecting with a crane,

the clamp can be sleeved on the outer peripheral side of the oil cylinder in an adaptive manner; the mortise lock can lock the clamp; one end of the supporting plate is fixed on the outer wall of the hoop, and two end parts of the supporting plate, which are away from the hoop by a preset distance, extend to the axis of the axle center of the hoop and the direction vertical to the central axis of the axle center of the hoop respectively to form a first connecting part and a second connecting part; the lifting appliance can be connected to the first connecting part or the second connecting part in a switching mode.

The utility model has the advantages that: the lifting appliance can be connected to the first connecting part or the second connecting part in a switching way, and when the propeller is horizontally installed, the lifting appliance can be connected to the second connecting part extending along the axial direction of the hoop, so that the propeller can be lifted vertically; when the propeller is vertically installed, the lifting appliance can be connected to the first connecting part extending along the radial direction of the hoop, so that the propeller is vertically lifted; thereby satisfying the hoist and mount requirement of screw under the different installation gestures, improving lifting device's flexibility and adaptability.

On the basis of the technical scheme, the utility model discloses can also do following improvement.

Further, the backup pad is the sector plate structure, the sector plate structure corresponds its curved both ends and extends and has first connecting portion and second connecting portion, and its central point is located the outer wall of clamp is fixed.

Furthermore, the lifting appliance comprises two positioning blocks, a limiting part and a lifting ring assembly, wherein the two positioning blocks are detachably mounted at the end parts of the first connecting part and the second connecting part respectively; the first connecting part and the second connecting part are provided with limiting holes at the positions, which are away from the end parts of the first connecting part and the second connecting part by a preset distance, of the plate surfaces; the limiting part is of an inverted U-shaped structure, and the opening end of the limiting part is connected to the corresponding limiting hole in a convertible manner through a bolt; the hoisting ring assembly is detachably sleeved on the first connecting portion or the second connecting portion through the inserting hole and limited between the limiting portion and the positioning block.

The lifting ring has the further beneficial effects that the lifting ring can be limited between the limiting part and the positioning block by contacting the two sides of the limiting part and the positioning block with the two sides of the lifting ring, so that the lifting ring detachably sleeved on the first connecting part or the second connecting part is prevented from moving, and the stability of the lifting propeller is improved.

Furthermore, the hanging ring assembly comprises an installation block and a hanging ring, and the insertion hole is formed in the installation block; the hanging ring is fixed on the top surface of the mounting block.

The protection plate is characterized by further comprising an arc-shaped protection plate, wherein one side plate surface of the protection plate is fixed on the arc surface of the support plate; the stopper portion is disposed on an outer peripheral side of the protection plate; the mounting block is sleeved on the periphery sides of the protection plate and the first connecting part or the periphery sides of the protection plate and the second connecting part through the plugging hole.

The protection plate has the further beneficial effects that the protection plate can prevent the cambered surface of the support plate from colliding on one hand, and can improve the structural strength of the support plate on the other hand.

Furthermore, the clamp comprises a semi-annular fixed clamp and a semi-annular movable clamp, one end of the fixed clamp is fixed on one side face of the supporting plate, the movable clamp and the fixed clamp are oppositely arranged and can form an annular structure, the annular structure can be sleeved on the outer peripheral side of the oil cylinder in an adaptive mode, one end, close to the supporting plate, of the movable clamp is hinged to one end of the fixed clamp, the other end, far away from the supporting plate, of the movable clamp is away from the other end of the fixed clamp by a preset distance, and a connecting block is fixed on the other end of the fixed clamp; the mortise lock comprises a fixing screw rod and an adjusting nut, the axial direction of the fixing screw rod is tangential to the circumferential direction of the fixing hoop, one end of the fixing screw rod is fixed at the other end of the fixing hoop, which is far away from the supporting plate, and the other end of the fixing hoop penetrates out of the connecting block; the adjusting nut and the fixing screw penetrate through one end of the connecting block and are in threaded connection, and the end of the adjusting nut is in contact with the connecting block.

The screw propeller locking device has the further beneficial effects that the adjusting nut is rotated, the adjusting nut is in contact with the connecting block, the connecting block and the other end, far away from the supporting plate, of the movable clamp can be driven to be close to the other end of the fixed clamp, and the end, close to the supporting plate, of the movable clamp is hinged to one end of the fixed clamp, so that the diameter of the annular structure can be reduced, the movable clamp is fixed with the oil cylinder of the screw propeller, and locking force is provided for a lifting appliance.

Further, still include two semi-annular's guard plate, fixed clamp with the relative inside wall of activity clamp all is equipped with relative spout, two the guard plate is all followed fixed clamp's circumference or the circumference sliding connection of activity clamp is two in the spout, two the guard plate is arranged the periphery side of hydro-cylinder.

Furthermore, two the guard plate all adopts soft metal material.

The screw cylinder locking device has the further beneficial effects that the two protection plates are connected in the sliding grooves of the fixed clamp and the movable clamp in a sliding mode, when the diameter of an annular structure formed by the fixed clamp and the movable clamp is reduced, the two protection plates can be driven to be close to each other, and then the fixed clamp and the movable clamp are in contact with the screw cylinder before the screw cylinder is locked by the annular structure, so that the screw cylinder is buffered, and the screw cylinder is prevented from colliding.

Drawings

Fig. 1 is a schematic view of an assembly structure of a propeller hoisting tool of the present invention;

fig. 2 is the utility model relates to a screw hoist and mount frock split structure sketch map.

FIG. 3 is a view of the utility model of a propeller hoisting tool for hoisting a propeller in a horizontal installation posture;

fig. 4 is the utility model relates to a screw hoist and mount frock lifts by crane the screw of vertical installation gesture.

In the drawings, the components represented by the respective reference numerals are listed below:

1. the clamp, 11, fixed clamp, 12, activity clamp, 13, connecting block, 14, spout, 2, mortise lock, 21, clamping screw, 22, adjusting nut, 3, backup pad, 31, first connecting portion, 32, second connecting portion, 33, fixed orifices, 4, hoist, 41, locating piece, 42, spacing portion, 43, rings, 431, the hanging ring, 432, the fixed block, 4321, the spliced eye, 5, the guard plate, 6, the guard plate, 7, the mounting disc, 8, the paddle, 9, the hydro-cylinder.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.

As shown in fig. 1, the propeller hoisting tool comprises a mounting disc 7, a plurality of blades 8 and an oil cylinder 9, wherein the blades 8 are arranged on the outer peripheral side of the mounting disc 7 at intervals; the oil cylinder 9 is arranged at the top end of the mounting disc 7; the method comprises the following steps: a clamp 1, a mortise lock 2, a support plate 3 and a lifting appliance 4 connected with a crane,

the clamp 1 can be sleeved on the outer peripheral side of the oil cylinder 9 in an adaptive manner; the mortise lock 2 can lock the hoop 1; one end of the support plate 3 is fixed on the outer wall of the clamp 1, and two end parts of the support plate 3, which are away from the clamp 1 by a preset distance, extend to the axial axis of the clamp 1 and the direction vertical to the central axis of the clamp 1 respectively to form a first connecting part 31 and a second connecting part 32; the spreader 4 is switchably connected to the first connection portion 31 or the second connection portion 32.

In some embodiments, the supporting plate 3 may be a fan-shaped plate structure, and the fan-shaped plate structure has a first connecting portion 31 and a second connecting portion 32 extending from two ends of the arc shape and fixed at a central point of the fan-shaped plate structure located on the outer wall of the clamp 1.

In some embodiments, the spreader 4 may include two positioning blocks 41, two limiting portions 42 and two lifting ring assemblies 43, wherein the two positioning blocks 41 are detachably mounted at the ends of the first connecting portion 31 and the second connecting portion 32; the plate surfaces of the first connecting part 31 and the second connecting part 32, which are away from the end parts by a preset distance, are provided with limiting holes 33; the limiting part 42 is of an inverted U-shaped structure, and the opening end of the limiting part is connected to the corresponding limiting hole 33 in a convertible manner through a bolt; the hanging ring component 43 is detachably sleeved on the first connecting portion 31 or the second connecting portion 32 through the inserting hole 4321 and is limited between the limiting portion 42 and the positioning block 41.

In some embodiments, the bail assembly 43 may include a mounting block 432 and a bail 431, with a plug hole 4321 provided on the mounting block 432; the hanging ring 431 is fixed to the top surface of the mounting block 432.

In some specific embodiments, an arc-shaped protection plate 6 can be further included, and one side plate surface of the protection plate 6 is fixed on the arc surface of the support plate 3; the stopper 42 is disposed on the outer peripheral side of the protective plate 6; the mounting block 432 is fitted on the outer peripheral side of the protection plate 6 and the first connection portion 31 or the outer peripheral side of the protection plate 6 and the second connection portion 32 through the insertion hole 4321.

In some embodiments, the clamp 1 may include a semi-annular fixed clamp 11 and a semi-annular movable clamp 12, one end of the fixed clamp 11 is fixed to one side surface of the support plate 3, the movable clamp 12 is arranged opposite to the fixed clamp 11 and may form an annular structure, the annular structure may be adapted to be sleeved on the outer peripheral side of the oil cylinder 9, one end of the movable clamp 12 close to the support plate 3 is hinged to one end of the fixed clamp 11, and the other end far away from the support plate 3 is spaced from the other end of the fixed clamp 11 by a predetermined distance and is fixed with a connecting block 13; the mortise lock 2 comprises a fixing screw rod 21 and an adjusting nut 22, the axial direction of the fixing screw rod 21 is tangential to the circumferential direction of the fixing hoop 11, one end of the fixing screw rod is fixed at the other end of the fixing hoop 11 far away from the supporting plate 3, and the other end of the fixing hoop passes through the connecting block 13; the adjusting nut 22 and the fixing screw 21 are threaded through one end of the connecting block 13 and the end thereof is in contact with the connecting block 13.

In some specific embodiments, two semi-annular protection plates 5 can be further included, opposite inner side walls of the fixed clamp 11 and the movable clamp 12 are respectively provided with opposite sliding grooves 14, the two protection plates 5 are respectively connected in the two sliding grooves 14 in a sliding mode along the circumferential direction of the fixed clamp 11 or the circumferential direction of the movable clamp 12, and the two protection plates 5 are arranged on the outer circumferential side of the oil cylinder 9.

In some embodiments, the two protection plates 5 may be made of a soft metal material.

The above description is only for the preferred embodiment of the present invention, and should not be construed as limiting the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. A propeller hoisting tool comprises a mounting disc (7), a plurality of blades (8) and an oil cylinder (9), wherein the blades (8) are mounted on the outer peripheral side of the mounting disc (7) at intervals; the oil cylinder (9) is arranged at the top end of the mounting disc (7); it is characterized by comprising: a clamp (1), a mortise lock (2), a support plate (3) and a lifting appliance (4) connected with a crane,

the clamp (1) can be sleeved on the outer peripheral side of the oil cylinder (9) in an adaptive manner; the mortise lock (2) can lock the hoop (1); one end of the support plate (3) is fixed on the outer wall of the clamp (1), and two end parts of the support plate (3) away from the clamp (1) by a preset distance respectively extend towards the axis of the clamp (1) and the direction vertical to the central axis of the clamp (1) to form a first connecting part (31) and a second connecting part (32); the lifting appliance (4) is connected to the first connecting part (31) or the second connecting part (32) in a switching manner.

2. The propeller hoisting tool according to claim 1, wherein the support plate (3) is a fan-shaped plate structure, the first connecting portion (31) and the second connecting portion (32) extend from the two ends of the fan-shaped plate structure corresponding to the arc shape of the fan-shaped plate structure, and the center point of the fan-shaped plate structure is fixed on the outer wall of the hoop (1).

3. The propeller hoisting tool according to claim 2, wherein the hanger (4) comprises two positioning blocks (41), two limiting parts (42) and two hoisting ring assemblies (43), and the two positioning blocks (41) are detachably mounted at the ends of the first connecting part (31) and the second connecting part (32) respectively; the first connecting part (31) and the second connecting part (32) are provided with limiting holes (33) at the positions away from the plate surfaces of the end parts by a preset distance; the limiting parts (42) are of inverted U-shaped structures, and the opening ends of the limiting parts are connected to the corresponding limiting holes (33) in a convertible mode through bolts; the hoisting ring assembly (43) is detachably sleeved on the first connecting portion (31) or the second connecting portion (32) through a plug hole (4321) and is limited between the limiting portion (42) and the positioning block (41).

4. The propeller hoisting tool according to claim 3, wherein the hoisting ring assembly (43) comprises a mounting block (432) and a hoisting ring (431), and the insertion hole (4321) is formed in the mounting block (432); the hanging ring (431) is fixed on the top surface of the mounting block (432).

5. The propeller hoisting tool according to claim 4, further comprising an arc-shaped protection plate (6), wherein one side plate surface of the protection plate (6) is fixed on the arc surface of the support plate (3); the stopper portion (42) is disposed on an outer peripheral side of the protection plate (6); the mounting block (432) is sleeved on the outer peripheral sides of the protection plate (6) and the first connecting portion (31) or the outer peripheral sides of the protection plate (6) and the second connecting portion (32) through the inserting hole (4321).

6. The propeller hoisting tool according to claim 1, wherein the clamp (1) comprises a semi-annular fixed clamp (11) and a semi-annular movable clamp (12), one end of the fixed clamp (11) is fixed on one side surface of the support plate (3), the movable clamp (12) is arranged opposite to the fixed clamp (11) and can form an annular structure, the annular structure can be sleeved on the outer peripheral side of the oil cylinder (9) in an adaptive mode, one end, close to the support plate (3), of the movable clamp (12) is hinged to one end of the fixed clamp (11), the other end, far away from the support plate (3), is away from the other end of the fixed clamp (11) by a preset distance and is fixedly provided with a connecting block (13); the mortise lock (2) comprises a fixing screw rod (21) and an adjusting nut (22), the axial direction of the fixing screw rod (21) is tangential to the circumferential direction of the fixing clamp (11), one end of the fixing screw rod is fixed at the other end, far away from the supporting plate (3), of the fixing clamp (11), and the other end of the fixing screw rod penetrates through the connecting block (13); the adjusting nut (22) and the fixing screw rod (21) penetrate through one end of the connecting block (13) and are in threaded connection, and the end portion of the adjusting nut is in contact with the connecting block (13).

7. The propeller hoisting tool according to claim 6, further comprising two semi-annular protection plates (5), wherein opposite inner side walls of the fixed clamp (11) and the movable clamp (12) are respectively provided with opposite sliding grooves (14), the two protection plates (5) are respectively connected in the two sliding grooves (14) in a sliding manner along the circumferential direction of the fixed clamp (11) or the circumferential direction of the movable clamp (12), and the two protection plates (5) are arranged on the outer circumferential side of the oil cylinder (9).

8. The propeller hoisting tool according to claim 7, wherein the two protection plates (5) are made of soft metal.