A bracket and cooling device for a hollow fan shaft

Abstract

This utility model relates to a hanger for a hollow fan shaft, comprising a rod and a locking device. The upper end of the rod has a lifting ring, on which a hook from a lifting device on a crane is attached. The lower part of the rod has external threads. The locking device includes a limiting plate and a nut. The outer diameter of the limiting plate is smaller than the inner diameter of the hollow fan shaft to be lifted. The limiting plate is slidably fitted onto the rod. Several support bars are arranged in a circular array on the curved surface of the limiting plate. The nut is threaded onto the lower part of the rod and located below the limiting plate. This utility model also relates to a cooling device. This utility model can effectively cool the inner and outer walls of the hollow fan shaft without modifying the horizontally oriented water agitator.

Description

Technical Field

[0001] This utility model relates to the field of forging, and in particular to a hanger and cooling device for a hollow fan shaft. Background Technology

[0002] Tempering is a key heat treatment method for forgings. It improves the overall mechanical properties of materials by quenching (rapid cooling) followed by high-temperature tempering. For example, water-cooled quenching can efficiently form martensitic structure, enhance strength and wear resistance, and reduce the risk of deformation.

[0003] When processing long-shaft hollow forgings, such as hollow fan shafts, if there is no horizontal agitator in the cooling water tank when they are immersed in water, and since long-shaft hollow forgings are mostly placed horizontally in the frame for cooling, their inner holes cannot be effectively and evenly cooled due to the lack of a horizontal agitator in the cooling water tank. Modifying the cooling water tank would be costly.

[0004] Therefore, it is desirable to provide a hanger and cooling device for a hollow fan shaft in order to solve the above-mentioned technical problems. Utility Model Content

[0005] The first objective of this invention is to provide a hanger for hollow fan shafts that can fully cool the inner and outer walls of the hollow fan shaft without requiring modification of the horizontally oriented water outlet agitator.

[0006] To achieve the above-mentioned utility model objectives, this utility model provides a hanger for a hollow fan shaft, comprising a rod body and a locking component;

[0007] The upper end of the rod has a lifting ring, and the hook of the lifting device on the crane is attached to the lifting ring;

[0008] The lower part of the rod has external threads;

[0009] The bayonet component includes a limiting disc and a nut;

[0010] The outer diameter of the limiting plate is smaller than the inner diameter of the hollow fan shaft to be hoisted;

[0011] The limiting disc is slidably sleeved on the rod body;

[0012] The curved surface of the limiting disk is provided with several support bars in a circular array.

[0013] The nut is threaded onto the lower part of the rod and is located below the limiting plate.

[0014] Preferably, the rod and the lifting ring are integrally formed.

[0015] Preferably, the edge of the limiting disc has several notches.

[0016] The second objective of this utility model is to provide a cooling device, which is equipped with the above-mentioned hollow fan shaft hanger.

[0017] Specifically, a cooling device includes a cooling pool, a traveling system, and a lifting device;

[0018] The crane system is located on the roof of the plant;

[0019] The lifting device is installed on the driving system;

[0020] The hollow fan shaft hanger is attached to the hook of the lifting device;

[0021] The bottom of the cooling pool is equipped with a vertically oriented water agitator.

[0022] Preferably, a support frame is provided on the lower inner wall of the cooling pool, and a filter screen is provided on the support frame, with the filter screen located above the water outlet agitator.

[0023] Furthermore, the inner wall corners of the cooling pool are vertically provided with sliding grooves, and the frame of the filter screen is slidably disposed on the sliding grooves and always remains horizontal;

[0024] The filter screen has a hanging ring on its frame.

[0025] The advantages of this utility model, a hollow fan shaft hanger and cooling device, compared with the prior art are as follows:

[0026] Suitable for large hollow fan shafts, it can be hoisted into the cooling pool without the need to modify the horizontal water outlet agitator, so that it can be fully cooled, reducing the transformation cost for enterprises. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of a hollow fan shaft hanger in Example 1;

[0028] Figure 2 This is a schematic diagram of the cooling pool in Example 2. Figure 1

[0029] Figure 3 This is a schematic diagram of the cooling pool in Example 2. Figure 2 ;

[0030] Figure 4 A schematic diagram of the working state of the cooling device in this embodiment 2. Detailed Implementation

[0031] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0032] Example 1

[0033] like Figure 1 As shown, the present invention provides a hollow fan shaft hanger, comprising a rod body 1 and a locking component.

[0034] The upper end of the rod 1 has a lifting ring 2, and the hook of the lifting device on the crane can be attached to the lifting ring 2; the lower part of the rod 1 has external threads (not shown in the figure).

[0035] In this embodiment, the rod 1 and the lifting ring 2 are integrally formed, which effectively improves the strength of the connection between the rod 1 and the lifting ring 2.

[0036] The bayonet includes a limiting disc 3 and a nut 4; the outer diameter of the limiting disc 3 is smaller than the inner diameter of the hollow fan shaft to be hoisted; the limiting disc 3 is slidably sleeved on the rod body 1; several support bars 5 are arranged in a ring array on the curved surface of the limiting disc 3.

[0037] The nut 4 is threaded onto the lower part of the rod body 1 and is located below the limiting disc 3.

[0038] In this embodiment, the edge of the limiting disk 3 has several notches 6, which effectively reduces the area of ​​the limiting disk 3, allowing cooling water to pass through and cool the inner wall of the hollow fan shaft.

[0039] Example 2

[0040] A cooling device includes a cooling pool 7, a traveling system 8, and a lifting device 9.

[0041] The overhead crane system 8 is located on the top of the factory building; the lifting device 9 is installed on the overhead crane system 8; the hook of the lifting device 9 is attached to the hanger described in Embodiment 1.

[0042] The bottom of the cooling pool 7 is equipped with a vertically oriented water agitator 10.

[0043] In this embodiment, as Figure 2 and Figure 3 As shown, a support frame 11 is provided on the lower inner wall of the cooling pool 7, and a filter screen 12 is provided on the support frame 11. The filter screen 12 is located above the water outlet agitator 10. With this arrangement, the filter screen 12 plays the role of receiving impurities, which facilitates subsequent cleaning.

[0044] Furthermore, the inner wall corners of the cooling pool 7 are vertically provided with sliding grooves 13, and the frame of the filter screen 12 is slidably disposed on the sliding grooves 13 and always remains horizontal; the frame of the filter screen 12 is provided with a lifting ring 14; with this arrangement, when it is necessary to clean the impurities held on the filter screen 12, the external lifting mechanism lifts the filter screen and the filter screen rises along the sliding grooves 13, preventing the filter screen from flipping over and the impurities from falling into the cooling pool.

[0045] like Figure 4 As shown, when conditioned and immersing the hollow fan shaft in water, the worker wearing protective clothing inserts the rod 1 into the hollow fan shaft 15 and passes it through the hollow fan shaft 15. The upper limit plate 3 and nut 4 are then fitted onto the other end. The lifting device 9 raises the assembled hoist, and under the action of the traveling system 8, it is transported to the top of the cooling pool 7. The lifting device 9 then vertically immerses the hollow fan shaft 15 into the cooling pool 7 for thorough cooling.

[0046] The preferred embodiments of this utility model have been described in detail above, but this utility model is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of this utility model, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A bracket for a hollow fan shaft, characterized in that, Includes the rod body and the bayonet; The upper end of the rod has a lifting ring, and the hook of the lifting device on the crane is attached to the lifting ring; The lower part of the rod has external threads; The bayonet component includes a limiting disc and a nut; The outer diameter of the limiting plate is smaller than the inner diameter of the hollow fan shaft to be hoisted; The limiting disc is slidably sleeved on the rod body; The curved surface of the limiting disk is provided with several support bars in a circular array. The nut is threaded onto the lower part of the rod and is located below the limiting plate.

2. A hanger for a hollow fan shaft as claimed in claim 1, characterized in that The rod and the lifting ring are integrally formed.

3. A hanger for a hollow fan shaft as claimed in claim 1 or 2, characterized in that The edge of the limiting plate has several notches.

4. Cooling device, characterized in that A bracket for a hollow fan shaft as described in any one of claims 1 to 3 is provided.

5. A cooling device as claimed in claim 4, characterised in that Includes cooling tanks, traveling system, and lifting device; The crane system is located on the roof of the plant; The lifting device is installed on the driving system; The hollow fan shaft hanger is attached to the hook of the lifting device; The bottom of the cooling pool is equipped with a vertically oriented water agitator.

6. A cooling device as claimed in claim 5, characterised in that A support frame is provided on the lower inner wall of the cooling pool, and a filter screen is provided on the support frame. The filter screen is located above the water outlet agitator.

7. A cooling device as described in claim 6, characterized in that, The inner wall corners of the cooling pool are vertically provided with sliding grooves, and the frame of the filter screen is slidably mounted on the sliding grooves and always remains horizontal. The filter screen has a hanging ring on its frame.

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