Efficient removing device for shot blasting layer of aircraft propeller

Abstract

The utility model relates to an efficient removing device for a shot blasting layer of an aircraft propeller, and relates to the technical field of material processing. Comprising a treatment cylinder, the treatment cylinder is transversely arranged through a support, supporting rings are arranged in the treatment cylinder in the length direction of the treatment cylinder, electric push rods are arranged on the two supporting rings, and clamping hands are installed at the telescopic ends of the electric push rods. And supporting hands are symmetrically arranged on one of the supporting rings. According to the propeller blade cleaning device, the following problems existing in the material processing process in the prior art can be solved: the clamping hand and the supporting hand are arranged, in the actual cleaning process, the clamping at one end is loosened in a staggered mode, the supporting hand is matched for supporting, cleaning liquid and a chelating agent are more comprehensively contacted, and the sufficiency of propeller blade treatment is guaranteed. And then different washing angles are adopted according to different metal materials by controlling the angles of the nozzles on the same connecting rod, so that the interlayer shear stress is reduced, and the damage risk caused by water flow washing is reduced.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of material processing, in particular to an aircraft propeller shot peening layer efficient removal device. BACKGROUND

[0002] The shot peening layer of the aircraft propeller refers to a special strengthening layer formed on the surface of the propeller through a shot peening process, which belongs to an application of metal material surface treatment technology and mainly utilizes high-speed projectiles (such as steel shots, glass shots and the like) to impact the surface of a metal part to make the surface material produce plastic deformation and residual compressive stress, thereby forming a strengthening layer.

[0003] When cracks, sand holes and the like exist in the propeller and these defects may be covered by the shot peening layer, the shot peening layer may need to be removed so that the internal condition of the propeller can be observed and evaluated more clearly, and safety hazards can be accurately identified.

[0004] In the existing technology for removing the shot peening layer, a method of chemical pretreatment + mechanical cleaning is widely used, which realizes the balance of efficient layer removal, substrate protection and sustainability in the field of aviation maintenance through the complementary effect of chemical and mechanical processes.

[0005] However, the existing technology still has some defects when removing the shot peening layer of the aircraft propeller.

[0006] 1. In the existing technology, when the propeller blade is clamped, the key connection parts on the blade are often completely covered due to the fixing requirement of the clamp. When a chemical solution containing a chelating agent is used for pretreatment, the chelating agent molecules in these areas tightly wrapped by the clamp are difficult to penetrate through diffusion, and cannot react with hard oxides such as aluminum oxide and titanium oxide in the shot peening layer, resulting in local softening failure of the shot peening layer.

[0007] 2. In the existing technology, due to the non-adjustable characteristics of the cleaning angle of the equipment, it is difficult to adapt to multiple material systems. The fixed cleaning angle and process parameters make it impossible for the operator to flexibly adjust the chemical agent injection direction according to the material characteristics, resulting in low layer removal efficiency and greatly limiting the application expansion of the technology in the efficient removal of the shot peening layer of the aircraft propeller.

[0008] Based on the above points, the existing technology for removing the shot peening layer of the aircraft propeller still has room for improvement. CONTENT OF THE INVENTION

[0009] In order to solve the above technical problems, the application provides an aircraft propeller shot peening layer efficient removal device, which comprises a treatment cylinder, the treatment cylinder is horizontally arranged through a support, support rings are arranged in the treatment cylinder along the length direction thereof, electric push rods are arranged on the two support rings, and clamping hands are installed at the extension end of the electric push rods.

[0010] The clamping hand comprises a U-shaped block, a working chamber is formed in the U-shaped block, a bidirectional screw rod is rotatably arranged in the working chamber, a moving block is symmetrically arranged on the bidirectional screw rod, and a clamping block is arranged on the moving block and extends out of the working chamber.

[0011] The support hand is symmetrically arranged on one of the support rings.

[0012] The processing cylinder is provided with a processing device for removing the shot layer of the aircraft propeller.

[0013] Preferably, an arc-shaped groove is formed on the side opposite to the clamping block of the support ring on which the support hand is arranged, and a corrugated groove is formed on the side opposite to the clamping block of the other support ring, and soft silica gel is arranged in the arc-shaped groove and the corrugated groove.

[0014] Preferably, the support hand comprises a telescopic rod arranged on the support ring, an arc-shaped block is arranged at the telescopic end of the telescopic rod, an electric push rod is arranged on the side opposite to the arc-shaped block, a support block is arranged on the electric push rod, and a support groove is formed in the support block.

[0015] Preferably, a support plate is symmetrically arranged in the support groove by means of a spring.

[0016] Preferably, a circular groove is formed in the U-shaped block close to the support hand along the width direction of the U-shaped block, and a through groove is formed in the other U-shaped block along the width direction of the U-shaped block.

[0017] Preferably, the processing device comprises a rotating ring symmetrically arranged in the processing cylinder along the length direction of the processing cylinder, the rotating ring is arranged outside the support ring, a plurality of connecting rods are equidistantly arranged between the two support rings along the axis, a plurality of mounting blocks are equidistantly hingedly arranged on the connecting rods along the length direction of the connecting rods, and a spray head is arranged on the mounting block.

[0018] Preferably, a chamber for storing water is formed in the connecting rod, the spray head is in communication with the connecting rod through a water pipe, a plurality of annular pipes are arranged on one side of the processing cylinder, a rotating plate is rotatably arranged on the annular pipe, a fixed pipe in communication with the connecting rod is arranged on the rotating plate, and each annular pipe is externally connected to a water supply pipe.

[0019] Preferably, the mounting block is hingedly arranged on the connecting rod through a rotating shaft, a sprocket is arranged on the rotating shaft, and a plurality of sprockets are jointly sleeved with a chain on the outside.

[0020] Preferably, a plurality of water outlets are arranged at the bottom of the processing cylinder, and an electric valve is arranged in the water outlet.

[0021] Preferably, a driving gear ring is arranged on one of the support rings, and a driving gear meshing with the driving gear ring is rotatably arranged on the mixing cylinder.

[0022] In summary, the present application has at least one of the following beneficial technical effects:

[0023] 1. The utility model discloses a clamping hand and supporting hand are set up, in actual cleaning process, cleaning fluid and chelating agent cannot contact the clamping position, influence the effect of processing, when the clamping of one end is released by staggered time, supports with supporting hand, makes the blade clamping position of the other end expose, more easily contact cleaning fluid and chelating agent, guarantees the thoroughness of propeller blade processing.

[0024] 2. The utility model discloses a spray head is hinged on the connecting rod, and the angle of the spray head on the same connecting rod is controlled, and in the process of stripping softened oxide and residual shot particles by water flow shearing force, different flushing angles are adopted according to different metal materials, interlaminar shear stress is reduced, and damage risk caused by water flow flushing is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is the whole structure schematic diagram of the utility model.

[0026] Figure 2 It is the structure schematic diagram of the inside of mixed cylinder of the utility model.

[0027] Figure 3 It is the structure schematic diagram of the utility model to the propeller blade is clamped.

[0028] Figure 4 It is the A place partial close -up drawing of the utility model Figure 3 .

[0029] Figure 5 It is the structure schematic diagram of the clamping hand of the utility model.

[0030] Figure 6 It is the structure schematic diagram of the utility model processing device.

[0031] Figure 7 It is the B place partial close -up drawing of the utility model Figure 6 .

[0032] Figure 8 It is the C place partial close -up drawing of the utility model Figure 6 .

[0033] Figure 9 It is the structure schematic diagram of the annular pipe of the utility model.

[0034] Explanation of reference signs: 1, treatment cylinder; 10, support; 11, support ring; 12, electric push rod; 2, clamping hand; 20, U-shaped block; 21, working chamber; 22, bidirectional screw; 23, moving block; 24, clamping block; 3, support hand; 30, telescopic rod; 31, arc-shaped block; 32, electric push rod; 33, support block; 34, support groove; 35, support plate; 36, circular groove; 37, through groove; 4, treatment device; 40, rotating ring; 41, connecting rod; 42, mounting block; 43, spray head; 50, annular pipe; 51, rotating plate; 52, fixed pipe; 53, water delivery pipe; 60, chain wheel; 61, chain; 70, water outlet pipe; 71, electric valve; 80, drive gear ring; 81, drive gear. DETAILED DESCRIPTION

[0035] The following will be described in detail below with reference to the accompanying drawings Figures 1 to 9 The application is further described in detail.

[0036] The embodiment of the application discloses an aircraft propeller shot peening layer efficient removal device. The aircraft propeller shot peening layer efficient removal device comprises a treatment cylinder 1, the treatment cylinder 1 is horizontally arranged through a support 10, support rings 11 are arranged in the treatment cylinder 1 along the length direction of the treatment cylinder 1, electric push rods 12 are arranged on the two support rings 11, and clamping hands 2 are arranged at the telescopic ends of the electric push rods 12. A closed door plate is hingedly arranged on the treatment cylinder 1, and an observation glass is arranged on the closed door plate.

[0037] Embodiment one

[0038] With reference to Figure 1 , Figure 3 and Figure 5 , an aircraft propeller shot peening layer efficient removal device comprises a treatment cylinder 1, the treatment cylinder 1 is horizontally arranged through a support 10, support rings 11 are arranged in the treatment cylinder 1 along the length direction of the treatment cylinder 1, electric push rods 12 are arranged on the two support rings 11, and clamping hands 2 are arranged at the telescopic ends of the electric push rods 12. A closed door plate is hingedly arranged on the treatment cylinder 1, and an observation glass is arranged on the closed door plate.

[0039] When the shot peening layer of the aircraft propeller needs to be removed, the closed door plate is opened, and the blades of the propeller are placed in the treatment cylinder 1. The clamping hands 2 are symmetrically arranged to clamp and fix the two ends of the blades, so that subsequent processing work is facilitated.

[0040] The clamping hand 2 comprises a U-shaped block 20, the two ends of the propeller blade are clamped on the U-shaped block 20 respectively, the electric push rod 12 is in the retracted mode in the initial state, the blade is conveniently put in and taken out, after the blade enters the treatment cylinder 1, the electric push rod 12 is gradually elongated, the U-shaped block 20 gradually approaches the two ends of the blade, and the blade is clamped. The U-shaped block 20 is internally provided with a working chamber 21, the bidirectional screw rod 22 is rotatably installed in the working chamber 21, the moving block 23 is symmetrically threaded on the bidirectional screw rod 22, and the clamping block 24 is installed on the moving block 23 and extends out of the working chamber 21. After the two ends of the blade enter the U-shaped block 20, the bidirectional screw rod 22 is driven and controlled to rotate externally, then the moving block 23 on the bidirectional screw rod 22 gradually approaches, and the clamping block 24 on the moving block 23 clamps the two ends of the blade.

[0041] One of the support rings 11 is also provided with a support hand 3. The support hand 3 is arranged because, due to the clamping and fixing of the two ends of the blade, the cleaning liquid and the chelating agent cannot contact the clamping position in the actual cleaning process, which affects the treatment effect. At this time, one end of the clamping is loosened in time, so that the clamping position of the other end of the blade is exposed, and it is easier to contact the cleaning liquid and the chelating agent. In order to prevent the clamping of one end from being unstable, the support hand 3 is used to fix the blade in the case of clamping of only one end, so as to prevent the blade from falling down.

[0042] The treatment cylinder 1 is provided with a treatment device 4 for removing the shot blasting layer of the aircraft propeller, and the treatment process mainly includes cleaning, chelating agent spraying and water flushing.

[0043] Referring to Figure 5 and Figure 6 , specifically, the side, opposite to the clamping block 24, of the support ring 11 on which the support hand 3 is installed is provided with an arc-shaped groove, and the side, opposite to the clamping block 24, of the other support ring 11 is provided with a corrugated groove. The arc-shaped groove and the corrugated groove are used to adapt to the shape of the propeller blade and to clamp the blade more stably. The arc-shaped groove and the corrugated groove are both provided with soft silica gel, which can prevent damage to the blade caused by hard clamping.

[0044] Referring to Figure 3 and Figure 4 , specifically, the support hand 3 comprises a telescopic rod 30 arranged on the support ring 11, the telescopic end of the telescopic rod 30 is provided with an arc-shaped block 31, the side, opposite to the arc-shaped block 31, is provided with an electric push rod 32, the electric push rod 32 is provided with a support block 33, and the support block 33 is provided with a support groove 34. The telescopic rod 30 is kept in the retracted state when the blade is placed, so as to prevent the blade from being blocked. Then the telescopic rod 30 is elongated and approaches the middle part of the blade, then the electric push rod 32 approaches the blade with the support block 33, and the support groove 34 on the support block 33 clamps the blade to support the blade.

[0045] Supporting groove 34 is symmetrically provided with supporting plate 35 through spring, the vane is clamped through supporting plate 35, and the contact surface of supporting plate 35 and the vane is also provided with soft silica gel, to prevent damage to the vane caused by clamping.

[0046] With reference to Figure 5 And Figure 6 , specifically, the circular groove 36 is provided on the width direction of the U-shaped block 20 close to the support hand 3, and the through groove 37 is provided on the width direction of the other U-shaped block 20, the circular groove 36 and the through groove 37 are adapted to the shape of the two ends of the blade, which can play a certain guiding role when placing the blade, and can support the blade in multiple positions to ensure that the blade will not slide and cause damage.

[0047] With reference to Figure 6 And Figure 7 , specifically, the processing device 4 includes a rotating ring 40 symmetrically rotating in the processing cylinder 1 along the length direction, the rotating ring 40 is sleeved outside the supporting ring 11, a plurality of connecting rods 41 are installed equidistantly along the axis between the two supporting rings 11, a plurality of mounting blocks 42 are hingedly arranged equidistantly on the connecting rod 41 along the length direction, and the spray head 43 is arranged on the mounting block 42. After the propeller blade is fixed, the rotating ring 40 is driven to rotate, and the spray head 43 on the rotating ring 40 will follow the rotating ring 40 to rotate along the blade, and gradually perform the processes of cleaning, chelating agent spraying and water flushing.

[0048] It should be noted here that different spray heads 43 are arranged on different connecting rods 41 to perform different spraying processes, and different types of spray heads 43 are distributed in cross position, so that different positions of the spray head 43 work synchronously during the rotation of the rotating ring 40, to ensure the comprehensiveness of the spraying.

[0049] With reference to Figure 6 、 Figure 8 And Figure 9 , specifically, the connecting rod 41 is internally provided with a water storage chamber, the spray head 43 is communicated with the inside of the connecting rod 41 through a water pipe, and a plurality of annular pipes 50 are arranged on one side of the processing cylinder 1, the rotating plate 51 is rotatably installed on the annular pipe 50, the fixed pipe 52 communicated with the connecting rod 41 is arranged on the rotating plate 51, and each annular pipe 50 is externally connected with a water supply pipe 53.

[0050] During the rotation of the rotating ring 40, the fixed pipe 52 on the rotating ring 40 rotates synchronously with the rotating ring 40, at this time, the rotating plate 51 will rotate on the annular pipe 50, which will not affect the liquid in the annular pipe 50 to enter the connecting rod 41 through the fixed pipe 52, to ensure the work of the spray head 43.

[0051] Different annular pipes 50 transport different cleaning agents, chelating agents and clean water through the external water delivery pipe 53, and the different annular pipes 50 are connected to the nozzles 43 on the connecting rods 41 through different fixed pipes 52.

[0052] Referring to Figure 6 and Figure 7 , specifically, the mounting blocks 42 are hingedly arranged on the connecting rods 41 through pivots, the pivots are provided with sprockets 60, and a plurality of sprockets 60 are collectively sleeved with a chain 61 on the outside. One of the pivots is driven to rotate by an external drive, and then the mounting blocks 42 on the same connecting rod 41 are controlled to rotate under the cooperation of the sprockets 60 and the chain 61, thereby controlling the angle of the nozzles 43 on the same connecting rod 41.

[0053] Here, the nozzles 43 that need to be controlled in angle are the nozzles 43 for cleaning the blades after completing the chelating agent spraying, and the softened oxides and residual shot particles are stripped by the shearing force of the water flow. In the specific implementation process, the metal material is vertically incident for washing, and the composite material is adjusted to an incident angle of 45° to reduce the interlayer shear stress and reduce the damage risk caused by water washing.

[0054] Referring to Figure 1 and Figure 2 , specifically, a plurality of water outlets 70 are arranged at the bottom of the processing cylinder 1, and the water outlets 70 are provided with electric valves 71. In each stage of cleaning the blades, different valves are opened, and wastewater in different cleaning stages is discharged through the corresponding water outlets 70 for collection.

[0055] Referring to Figure 1 and Figure 2 , specifically, one of the support rings 11 is provided with a driving gear ring 80, and the mixing cylinder is rotatably provided with a driving gear 81 engaged with the driving gear ring 80.

[0056] The driving gear 81 is controlled to rotate by an external drive, and then the driving gear ring 80 rotates under the action of the driving gear 81, thereby controlling the support ring 11 to rotate and drive the nozzles 43 on the connecting rods 41 to work.

[0057] The implementation principle of the utility model is:

[0058] (1) Open the closed door panel, and put the blades of the propeller into the processing cylinder 1.

[0059] (2) After the blades enter the processing cylinder 1, the electric push rod 12 is gradually elongated, the o-shaped blocks 20 gradually approach the two ends of the blades, the blades are clamped into the circular grooves and the through grooves 37 of the two o-shaped blocks 20, and then the moving blocks 23 gradually approach under the rotation control of the bidirectional screw rod 22, and the clamping blocks 24 on the moving blocks 23 clamp the two ends of the blades.

[0060] (3): After the fixing is completed, the telescopic rod 30 is extended, approaches the middle part of the blade, and then the electric push rod 32 carries the support block 33 to approach the blade, and the blade is supported by the support groove 34 on the support block 33.

[0061] (4): After the blade is fixed, the rotating ring 40 is driven to rotate, the spray head 43 on the rotating ring 40 rotates along the blade, the corresponding spray head 43 for cleaning, chelating agent spraying and water flow flushing is gradually opened, and the shot peening layer removal work is gradually performed.

[0062] (4): During the cleaning process, the clamping of one end is released at different times, so that the clamping position of the blade at the other end is exposed, and the blade is ensured to be fully contacted with the cleaning liquid and the chelating agent.

[0063] The embodiments of the specific embodiment are the preferred embodiments of the utility model, and are not limited to the protection scope of the utility model, so that: equivalent changes made according to the structure, shape and principle of the utility model should be covered in the protection scope of the utility model.

Claims

1. A high-efficiency shot peening layer removal device for aircraft propellers, comprising a treatment cylinder (1), wherein the treatment cylinder (1) is arranged laterally via a support (10), characterized in that: A support ring (11) is provided inside the processing cylinder (1) along its length direction. An electric push rod (12) is provided on each of the two support rings (11). A clamping hand (2) is installed on the telescopic end of the electric push rod (12). The clamping hand (2) includes a U-shaped block (20), a working chamber (21) is provided inside the U-shaped block (20), a bidirectional screw (22) is rotatably installed inside the working chamber (21), a moving block (23) is symmetrically threaded on the bidirectional screw (22), and a clamping block (24) is installed on the moving block (23) extending out of the working chamber (21); One of the support rings (11) is also symmetrically provided with support hands (3); The processing cylinder (1) is equipped with a processing device (4) for removing the shot peening layer of the aircraft propeller.

2. The high-efficiency shot peening layer removal device for aircraft propellers according to claim 1, characterized in that: An arc-shaped groove is provided on the opposite side of the clamping block (24) on the support ring (11) of the mounting support hand (3), and a corrugated groove is provided on the opposite side of the clamping block (24) on the other support ring (11). Soft silicone is installed on both the arc-shaped groove and the corrugated groove.

3. The high-efficiency shot peening layer removal device for aircraft propellers according to claim 2, characterized in that: The support arm (3) includes a telescopic rod (30) set on the support ring (11). The telescopic end of the telescopic rod (30) is provided with an arc-shaped block (31). An electric push rod (32) is installed on the opposite side of the arc-shaped block (31). A support block (33) is provided on the electric push rod (32). The support block (33) has a support groove (34).

4. The high-efficiency shot peening layer removal device for aircraft propellers according to claim 3, characterized in that: Support plates (35) are symmetrically arranged inside the support groove (34) via springs.

5. The high-efficiency shot peening layer removal device for aircraft propellers according to claim 4, characterized in that: A circular groove (36) is provided on the U-shaped block (20) near the support arm (3) along its width direction, and a through groove (37) is provided on the other U-shaped block (20) along its width direction.

6. The high-efficiency shot peening layer removal device for aircraft propellers according to claim 1, characterized in that: The processing device (4) includes a rotating ring (40) that is symmetrically rotated inside the processing cylinder (1) along its length direction. The rotating ring (40) is sleeved on the outside of the support ring (11). Multiple connecting rods (41) are installed at equal intervals along their axes between the two support rings (11). Multiple mounting blocks (42) are hinged at equal intervals along their length direction on the connecting rods (41). A nozzle (43) is installed on the mounting block (42).

7. The high-efficiency shot peening layer removal device for aircraft propellers according to claim 6, characterized in that: The connecting rod (41) has a water storage chamber inside. The nozzle (43) is connected to the inside of the connecting rod (41) through a water pipe. Multiple annular pipes (50) are provided on one side of the treatment cylinder (1). A rotating plate (51) is rotatably installed on the annular pipe (50). A fixed pipe (52) connected to the connecting rod (41) is provided on the rotating plate (51). Each annular pipe (50) is connected to a water supply pipe (53).

8. The high-efficiency shot peening layer removal device for aircraft propellers according to claim 7, characterized in that: The mounting block (42) is hinged to the connecting rod (41) via a pivot. A sprocket (60) is mounted on the pivot, and a chain (61) is fitted on the outer side of multiple sprockets (60).

9. The high-efficiency shot peening layer removal device for aircraft propellers according to claim 1, characterized in that: The bottom of the treatment cylinder (1) is provided with multiple water outlet pipes (70), and an electric valve (71) is installed inside the water outlet pipes (70).

10. The high-efficiency shot peening layer removal device for aircraft propellers according to claim 1, characterized in that: One of the support rings (11) is equipped with a drive gear ring (80), and a drive gear (81) that meshes with the drive gear ring (80) is rotatably mounted on the mixing cylinder.

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