Suspension device for heat treatment of cylindrical part of aircraft shell

Abstract

The utility model discloses a suspension device for heat treatment of a cylindrical part of an aircraft shell and belongs to the technical field of machine manufacturing. The bottom end of the suspension device is a chassis capable of contacting with the bottom of the vacuum heat treatment furnace, a lifting handle at the top end is connected with a lifting hook through a lifting handle seat, and an arc-shaped block is arranged at the outer end of the lifting hook; the positioning seat is in threaded connection with the top end of the supporting column, the bottom end of the supporting column is in threaded connection with the chassis, and the positioning table of the positioning seat is embedded into the positioning hole of the lifting handle seat, so that the positioning seat and the lifting handle seat are inserted and positioned; the top end of the main shaft is connected with a lifting ring; adjusting supports are evenly distributed on the base plate along the center of the supporting column. After the shell cylindrical part is fixedly arranged on the suspension device, the shell cylindrical part can be automatically aligned when being lifted, so that the phenomenon that the lifted part is easy to deviate is overcome, many defects existing in an existing manual binding mode are overcome, four parts can be simultaneously subjected to heat treatment by each suspension device at one time, the product quality is ensured, and the production efficiency is improved. And the working efficiency is improved, and the manufacturing cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical manufacturing, in particular to a suspension device used for heat treatment of cylindrical parts of aircraft shells. Background Art

[0002] The cylindrical parts of the shell need to be heat treated after welding to eliminate internal stress. However, since the outer shell of the cylindrical parts of the shell is flat and there is no lifting position for suspension, it is often necessary to manually tie the cylindrical parts of the shell with wire to fix them. A ring knot is reserved at the end of the wire for lifting the cylindrical parts of the shell. However, since the wire becomes brittle after heat treatment, it is easy to break when lifting the parts, which brings unnecessary trouble to lifting the cylindrical parts of the shell after heat treatment. Although the existing manual bundling method can solve the problem of lifting parts, it is inefficient and has safety hazards. Summary of the invention

[0003] In order to overcome the deficiencies of the prior art, the purpose of the invention of the utility model is to provide a suspension device for heat treatment of cylindrical parts of aircraft shells, so as to solve the problem of difficulty in lifting cylindrical parts of shells.

[0004] In order to achieve the above-mentioned purpose of the invention, the bottom end of the suspension device of the utility model is a chassis that can contact the bottom of the vacuum heat treatment furnace, the handle at the top is connected to the lifting hook through the handle seat, the positioning seat is threadedly connected to the top of the supporting column, the bottom end of the supporting column is threadedly connected to the chassis, and the positioning platform of the positioning seat is embedded in the positioning hole of the handle seat, so that the positioning seat and the handle seat are plugged and positioned; the top end of the main shaft is connected with a lifting ring, and the bottom end is welded to the center of the chassis.

[0005] Furthermore, the screw rod at the lower part of the handle is threadedly connected to the screw hole of the handle seat, and the handle connects and fixes the handle hook between the handle and the handle seat through the handle seat.

[0006] Furthermore, the lifting hooks are evenly distributed along the center of the middle disc, and the outer ends of the lifting hooks are provided with arc blocks for hooking the inner bosses of the ends of the cylindrical parts of the shell; the outer ends and top surfaces of the arc blocks are respectively adapted to the inner circle and the inner bosses of the cylindrical parts of the shell.

[0007] Furthermore, there are multiple support columns, which are evenly distributed vertically on the circumference of the chassis along the center of the main axis.

[0008] Furthermore, adjustment supports for supporting the bottom end of the cylindrical part of the shell are evenly installed on the chassis and along the center of the support column, and the adjustment supports are threadedly connected to the chassis.

[0009] When in use, the operator lifts the handle through the lifting device, then manually tilts the hook into the cylindrical part of the shell, and then rotates the hook to a horizontal position so that the arc block on the hook is hooked on the inner boss at the end of the cylindrical part of the shell. The lifted cylindrical part of the shell is positioned on the four supporting columns through the lifting handle, and then the support is fine-tuned. Finally, the lifting ring on the main shaft is lifted by the lifting device, and the suspension device with the cylindrical part of the shell is placed into the vacuum heat treatment furnace.

[0010] Compared with the prior art, the utility model can make full use of the space of the vacuum heat treatment furnace. After the cylindrical parts of the shell are installed and fixed on the suspension device, the cylindrical parts of the shell can be automatically aligned when they are lifted, thereby overcoming the phenomenon that the lifted parts are easily skewed, and solving many problems such as the difficulty in lifting and the potential safety hazard of falling in the existing manual binding method. Each suspension device can heat treat four parts at a time, which not only ensures product quality, but also correspondingly improves work efficiency and reduces manufacturing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram showing the structure of the utility model.

[0012] Figure 2 It is a simplified application diagram of the utility model.

[0013] In the figure: 1, chassis; 2, adjustment support; 3, support column; 4, main shaft; 5, positioning seat; 6, lifting hook; 7, arc block; 8, handle seat; 9, handle; 10, lifting ring; 11, shell cylindrical part. DETAILED DESCRIPTION

[0014] like Figure 1 , Figure 2As shown, the bottom end of the suspension device of the utility model is a chassis 1 that can contact the bottom of the vacuum heat treatment furnace. The screw at the bottom of the lifting handle 9 is threadedly connected to the screw hole of the lifting handle seat 8. The lifting handle 9 connects and fixes the lifting hook 6 between the lifting handle 9 and the lifting handle seat 8 through the lifting handle seat 8. The shell cylindrical part 11 can be lifted by the lifting handle 9. The lifting hook 6 is evenly distributed along the center of the middle disk. The outer end of the lifting hook 6 is provided with an arc block 7. The outer end and the top surface of the arc block 7 are respectively adapted to the inner circle and the end inner boss of the shell cylindrical part 11. The arc block 7 can play the role of hooking the inner boss of the end of the shell cylindrical part 11 on the one hand, and can also balance the shell cylindrical part 11 on the other hand, and can also make the shell cylindrical part 11 self-centering on the lifting hook 6; the positioning seat 5 and the top of the supporting column 3 The ends are threadedly connected, the bottom ends of the supporting columns 3 are threadedly connected to the chassis 1, and the positioning platform of the positioning seat 5 is embedded in the positioning hole of the handle seat 8, so that the positioning seat 5 and the handle seat 8 are plugged and positioned; there are four supporting columns 3, which are vertically evenly distributed on the circumference of the chassis 1 along the center of the main shaft 4, and the height of the supporting columns 3 can be adjusted according to the size of the cylindrical part 11 of the shell; the top end of the main shaft 4 is connected to the lifting ring 10, and the bottom end is welded to the center of the chassis 1, and the suspension device is raised and lowered by lifting the lifting ring 10; on the chassis 1, along the center of each supporting column 3, three adjusting supports 2 for supporting the bottom end of the cylindrical part 11 of the shell are evenly installed, the adjusting supports 2 are threadedly connected to the chassis 1, and the adjusting supports 2 can be fine-tuned to prevent the cylindrical part 11 of the shell from deforming under the action of its own weight after being heated.

[0015] When in use, the operator lifts the lifting handle 9 through the lifting device, and then manually tilts the lifting hook 6 into the shell cylindrical part 11, and then rotates the lifting hook 6 to the horizontal level, so that the arc block 7 on the lifting hook 6 is hooked on the inner boss of the inner end of the shell cylindrical part 11, and the lifted shell cylindrical part 11 is placed on the four support columns 3 through the lifting handle 9, and then the support 2 is fine-tuned. Finally, the lifting ring 10 on the main shaft 4 is lifted by the lifting device, and the suspension device with the shell cylindrical part 11 is placed in the vacuum heat treatment furnace. Each suspension device can heat treat four parts at a time, which not only ensures product quality, but also improves work efficiency and reduces manufacturing costs.

Claims

1. A suspension device for heat treatment of cylindrical parts of aircraft shells, characterized in that: The bottom end of the suspension device is a chassis (1) that can contact the bottom of the vacuum heat treatment furnace, the top end of the handle (9) is connected to the hook (6) through the handle seat (8), the positioning seat (5) is threadedly connected to the top end of the support column (3), the bottom end of the support column (3) is threadedly connected to the chassis (1), and the positioning platform of the positioning seat (5) is embedded in the positioning hole of the handle seat (8) so that the positioning seat (5) and the handle seat (8) are plugged and positioned; the top end of the main shaft (4) is connected to a lifting ring (10), and the bottom end is welded to the center of the chassis (1).

2. The suspension device for heat treatment of cylindrical parts of aircraft shells according to claim 1, characterized in that: The screw rod at the bottom of the handle (9) is threadedly connected to the screw hole of the handle seat (8), and the handle (9) connects and fixes the hook (6) between the handle (9) and the handle seat (8) through the handle seat (8).

3. The suspension device for heat treatment of cylindrical parts of aircraft shells according to claim 1, characterized in that: The lifting hooks (6) are evenly distributed along the center of the middle disk, and the outer ends of the lifting hooks (6) are provided with arc blocks (7) for hooking the inner bosses of the end portions of the shell cylindrical parts (11); the outer ends and top surfaces of the arc blocks (7) are respectively matched with the inner circle and the inner bosses of the end portions of the shell cylindrical parts (11).

4. The suspension device for heat treatment of cylindrical parts of aircraft shells according to claim 1, characterized in that: The supporting columns (3) are multiple and vertically evenly distributed on the circumference of the chassis (1) along the center of the main shaft (4).

5. The suspension device for heat treatment of cylindrical parts of aircraft shells according to claim 1, characterized in that: Adjustment supports (2) for supporting the bottom end of the cylindrical part (11) of the housing are evenly arranged on the chassis (1) along the center of the support column (3), and the adjustment supports (2) are threadedly connected to the chassis (1).

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