Hoisting tool for heat treatment

Abstract

The utility model relates to the technical field of heat treatment, and discloses a heat treatment hoisting tool and a supporting mechanism used in a heating area of a vacuum furnace, the heat treatment hoisting tool comprises the vacuum furnace, an inner container is arranged in the vacuum furnace, the supporting mechanism is arranged in the inner container, and the supporting mechanism is used for supporting a product by the inner container. The hoisting tool is ingenious in design structure, simple in product part machining, low in machining cost and wide in generalization, the charging number of super-long rod (the length-diameter ratio L is larger than or equal to 7d) products can be doubled by the hoisting tool, and the hoisting tool is simple in structure, safe, reliable and capable of meeting the heat treatment hoisting use requirement.

Description

Technical Field

[0001] This utility model relates to the field of heat treatment technology, and in particular to a heat treatment hoisting fixture. Background Technology

[0002] With the increasing variety and quantity of heat-treated products, extra-long rods (length-to-diameter ratio L≥7D) are frequently encountered. These rods, when laid flat in the material basket, are prone to bending and deformation after heat treatment, leading to significant processing difficulties. Furthermore, the length of these rods exceeding the height of the furnace basket further complicates processing and hinders product turnover. To address the issue of insufficient furnace loading of extra-long rods in the heat treatment center and accelerate product turnover, a simple, easy-to-use, and low-cost lifting fixture was designed to ensure product quality. This fixture is used for the heat treatment of extra-long rods (length-to-diameter ratio L≥7D).

[0003] Therefore, the above problems are solved by using a heat treatment hoisting fixture. Utility Model Content

[0004] The purpose of this utility model is to provide a heat treatment hoisting fixture to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a support mechanism for use in the heating zone of a vacuum furnace, comprising a vacuum furnace, wherein an inner liner is provided inside the vacuum furnace, and a support mechanism is provided inside the inner liner, the support mechanism being used to support the product in the inner liner.

[0006] Preferably, a connector is provided between the vacuum furnace and the inner liner, the connector being used to fix the inner liner, and the central axis of the vacuum furnace and the central axis of the inner liner being collinear.

[0007] Preferably, a plurality of sliding blocks are symmetrically arranged inside the inner liner, and a sliding groove is formed on the end face of each sliding block, with a support mechanism slidably arranged inside the sliding groove.

[0008] Preferably, the support mechanism includes a sliding plate located inside a sliding groove.

[0009] Preferably, a support frame is provided at the top of the sliding plate, the bottom and sides of the support frame have openings, and a support plate is slidably disposed inside the support frame.

[0010] Preferably, the end face of the support plate is provided with a through hole, and the top end of the support frame is provided with a through hole.

[0011] Preferably, the through hole of the support plate is collinear with the central axis of the through hole at the top of the support frame.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] 1. This utility model pulls out the support mechanism, and the external hoisting equipment is connected to the connecting ring on the upper front side of the support frame, which facilitates the pulling out of the support frame. During the pulling out process, the sliding plate of the support frame slides inside the sliding groove of the sliding block. The sliding groove limits the left and right sides of the sliding plate, so that the sliding plate can only slide inside the sliding groove, avoiding the sliding plate from shaking inside the sliding groove.

[0014] 2. In this utility model, long rods are inserted into a through hole, which allows them to stand upright. However, when long rods are laid flat on a support mechanism, they are prone to bending and deformation after heat treatment, making processing difficult. Therefore, a through hole is used to allow long rods to stand upright, thus avoiding easy bending and deformation after heat treatment.

[0015] 3. The lifting fixture of this utility model has an ingenious design structure, simple product parts processing, and low processing cost, and has wide applicability. This lifting fixture can not only double the number of products loaded into the furnace with ultra-long rods (length to diameter ratio L≥7d), but also has a simple structure, is safe and reliable, and meets the requirements for lifting in heat treatment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the frame assembly structure of this utility model.

[0018] Figure 3 This is a schematic diagram of the dispensing component structure of this utility model.

[0019] Figure 4 This is a schematic diagram of the sorting component structure of this utility model.

[0020] In the diagram: 1. Vacuum furnace; 2. Inner liner; 3. Connector; 4. Support mechanism; 401. Sliding plate; 402. Support frame; 403. Support plate; 404. Through hole; 5. Sliding block. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0022] This utility model provides, for example Figures 1 to 4The heat treatment hoisting fixture shown includes a support mechanism 4 for use in the heating zone of a vacuum furnace 1. The vacuum furnace 1 has an inner liner 2 inside, and the support mechanism 4 is installed inside the inner liner 2. The support mechanism 4 is used to support the product in the inner liner 2.

[0023] During use, the support mechanism 4 inside the inner liner 2 supports the product during the heating process of the vacuum furnace 1.

[0024] Taking the heat treatment of ultra-long rods with L≥7D using a double-chamber vacuum oil quenching gas cooling furnace as an example, the effective heating zone of the heat treatment furnace chamber is 600×400×400mm. According to the requirements of the effective heating zone of the heat treatment equipment, the size of the support mechanism 4 is set to 500×340×300mm so that the product is completely within the effective heating zone of the vacuum furnace 1.

[0025] The length of the long rod is: , and the diameter of the long rod is: . The length of the long rod product is less than the diameter of the inner tube. The long rod product is inserted into the through hole 404, which makes the long rod product stand upright. However, the long rod is laid flat on the support mechanism 4, and it is very easy to bend and deform after heat treatment, which makes the processing difficult. Therefore, the through hole 404 is used to make the long rod product stand upright, so as to avoid the long rod being very easy to bend and deform after heat treatment.

[0026] A connector 3 is provided between the vacuum furnace 1 and the inner liner 2. The connector 3 is used to fix the inner liner 2. The central axis of the vacuum furnace 1 is collinear with the central axis of the inner liner 2.

[0027] During use, the connector 3 is used to fix the inner liner 2 inside the vacuum furnace 1 to prevent the inner liner 2 from shaking inside the vacuum furnace 1. The central axis of the vacuum furnace 1 and the inner liner 2 are collinear, which also prevents uneven heating inside the inner liner 2 and affects the heat treatment of the product.

[0028] The inner liner 2 has a plurality of sliding blocks 5 symmetrically arranged inside. The end face of the sliding block 5 is provided with a sliding groove, and a support mechanism 4 is slidably arranged inside the sliding groove.

[0029] The support mechanism 4 includes a sliding plate 401, which is located inside the sliding groove.

[0030] In use, the sliding block 5 inside the inner liner 2 is used to support the sliding of the mechanism 4. The sliding groove on the end face of the sliding block 5 is used for the sliding of the sliding plate 401. The sliding groove limits the left and right sides of the sliding plate 401, so that the sliding plate 401 can only slide inside the sliding groove, thus preventing the sliding plate 401 from shaking inside the sliding groove.

[0031] The top of the sliding plate 401 is provided with a support frame 402, the bottom and side of the support frame 402 have openings, and a support plate 403 is slidably disposed inside the support frame 402.

[0032] In use, the sliding plate 401 supports the support frame 402. The sliding plate 401 is fixedly connected to the support frame 402. The bottom of the support frame 402 is open to facilitate the heat treatment of the product by the heat treatment gas of the inner liner 2. The side of the support frame 402 is open to facilitate the sliding of the support plate 403 inside the support frame 402.

[0033] The end face of the support plate 403 is provided with a through hole 404, and the top end of the support frame 402 is provided with a through hole 404.

[0034] The through hole 404 of the support plate 403 is collinear with the central axis of the through hole 404 at the top of the support frame 402.

[0035] When in use, long rods are inserted into the through hole 404, which makes them stand upright. However, when long rods are laid flat on the support mechanism 4, they are very easy to bend and deform after heat treatment, which makes processing difficult. Therefore, the through hole 404 is used to make long rods stand upright, thus avoiding the easy bending and deformation of long rods after heat treatment.

[0036] Working principle

[0037] During initial use, the support mechanism 4 is pulled out, and the external hoisting equipment is connected to the connecting ring on the upper front side of the support frame 402 to facilitate the pulling out of the support frame 402. During the pulling out process, the sliding plate 401 of the support frame 402 slides inside the sliding groove of the sliding block 5. The sliding groove limits the left and right movement of the sliding plate 401, so that the sliding plate 401 can only slide inside the sliding groove, avoiding the sliding plate 401 from shaking inside the sliding groove.

[0038] After being pulled out, the long rod is inserted into the through hole 404, which makes the long rod stand upright. However, the long rod is laid flat on the support mechanism 4 and is very easy to bend and deform after heat treatment, which makes the processing difficult. Therefore, the through hole 404 is used to make the long rod stand upright to avoid the long rod being very easy to bend and deform after heat treatment.

[0039] This hoisting fixture has an ingenious design, simple parts processing, and low processing cost, making it widely applicable. This hoisting fixture can not only double the number of products with extra-long rods (length-to-diameter ratio L≥7d) that can be loaded into the furnace, but it also has a simple structure, is safe and reliable, and meets the requirements for hoisting in heat treatment.

[0040] During the heat treatment process, the vacuum furnace 1 is sealed by its own sealing cover.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A heat treatment hoist tooling characterized by: Supporting mechanism (4) for heating area of vacuum furnace (1), comprising vacuum furnace (1), the inside of vacuum furnace (1) is provided with inner container (2), the inside of inner container (2) is provided with supporting mechanism (4), and the supporting mechanism (4) is used to support product in inner container (2); Connecting piece (3) is arranged between vacuum furnace (1) and inner container (2), the connecting piece (3) is used for the fixation of inner container (2), the central axis of vacuum furnace (1) is collinear with the central axis of inner container (2), the central axis of vacuum furnace (1) and inner container (2) is collinear, and the inside of inner container (2) is avoided from being unevenly heated; A plurality of sliding blocks (5) are symmetrically arranged in the inside of inner container (2), the end face of sliding block (5) is provided with sliding groove, and the inside of sliding groove is slidably provided with supporting mechanism (4); The supporting mechanism (4) comprises sliding plate (401), and the sliding plate (401) is located in the inside of sliding groove; The top end of sliding plate (401) is provided with support frame (402), the bottom end and the side surface of support frame (402) have openings, and the inside of support frame (402) is slidably provided with support plate (403); The end face of support plate (403) is provided with through hole (404), the top end of support frame (402) is provided with through hole (404), and the through hole (404) makes long rod type product stand.

2. The heat treatment hanging tooling according to claim 1, characterized in that: The through hole (404) of support plate (403) and the through hole (404) in the top end of support frame (402) are collinear with the central axis.

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