Hanging lifting appliance for heat treatment

Abstract

The utility model relates to the technical field of lifting appliances, and particularly discloses a suspension lifting appliance for heat treatment, which comprises a lifting rod, at least one lifting basket is arranged on the lifting rod, and at least one workpiece groove for mounting workpieces is formed in the lifting basket; mounting sleeves are arranged on the two sides of the hanging rod, and the hanging basket is arranged on the hanging rod through the mounting sleeves. When the suspension lifting appliance for heat treatment is used, the hanging basket is mounted on the lifting rod through the mounting sleeve according to working requirements, a workpiece is placed on the workpiece groove after mounting is completed, and after placement is completed, the lifting rod is clamped and placed in a set heating furnace through external equipment to be subjected to heat treatment operation; and meanwhile, the distance between the two hanging baskets can be adjusted according to the requirements of workpieces of different models and sizes through sliding of the mounting sleeve and the hanging rod, and the influence on the heat treatment requirements of the workpieces is avoided.

Description

Technical Field

[0001] This utility model relates to the field of lifting equipment technology, specifically a suspension lifting equipment for heat treatment. Background Technology

[0002] Heat treatment is a metal heating process that involves heating, holding, and cooling a workpiece in a solid state to alter its surface or internal chemical composition and microstructure, thereby achieving desired properties. During the heat treatment process, lifting devices are used to suspend the workpiece within the heating furnace.

[0003] In the heat treatment production of automotive parts forging billets, in order to improve heat treatment efficiency and reduce production costs, it is often necessary to process different varieties and specifications of workpieces with similar processes in the same furnace or in a continuous furnace.

[0004] In the prior art, there is a Chinese patent with application number 202320848826.8 and authorization announcement number CN219446030U, entitled "A Lifting Tool for Heat Treatment". The aforementioned patent discloses a lifting tool for heat treatment, which relates to the field of heat treatment lifting tool technology. It includes a central column and a supporting hanging arm. A material rack is fixedly connected to the center of the bottom of the central column. The material rack has storage slots machined inside all four sides. Multiple limiting prisms are fixed to the inner wall of one side of the storage slots. Multiple limiting protrusions are integrally formed on the top of the supporting hanging arm. Multiple hanging brackets are movable on the top of the supporting hanging arm. Multiple hooks are set inside the hanging brackets. One end of the multiple limiting prisms is in contact with the same support plate. Springs are in contact with the top and bottom of one side of the support plate.

[0005] The aforementioned patent connects one end of multiple support arms to limiting prisms of different heights inside the receiving slot, utilizing the differences in the height and position of the multiple support plates to accommodate materials of different specifications. However, existing lifting devices are prone to workpiece accumulation during operation, leading to uneven heating and affecting workpiece quality. Furthermore, existing lifting devices cannot adjust their state according to workpiece size, thus limiting their applicability. Utility Model Content

[0006] The purpose of this invention is to provide a suspension hanger for heat treatment to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a suspension hanger for heat treatment, comprising a suspension rod, wherein at least one hanging basket is provided on the suspension rod, and at least one workpiece groove for mounting workpieces is provided on the hanging basket; mounting sleeves are provided on both sides of the suspension rod, and the hanging basket is mounted on the suspension rod through the mounting sleeves.

[0008] Furthermore, the mounting sleeve is fixedly connected to the boom, and the basket and the mounting sleeve are welded together by reinforcing ribs.

[0009] Furthermore, the mounting sleeve is slidably connected to the boom, and the mounting sleeve is rotatably connected to the basket via a snap-fit ​​connector, and a positioning mechanism is provided between the mounting sleeve and the boom.

[0010] Furthermore, the positioning mechanism includes a limiting block fixedly connected to the mounting sleeve, and the rod is provided with a vertical groove and a blocking groove, which are connected to the vertical groove by a guide groove.

[0011] Furthermore, the size of the limiting block is adapted to the size of the blocking groove to improve the stability of the mounting sleeve when it is installed on the boom.

[0012] Furthermore, the snap-fit ​​component includes an annular component fixedly connected to the mounting sleeve, and the bottom of the suspended basket is provided with an annular groove, the annular component being rotatably connected within the annular groove.

[0013] Furthermore, the vertical groove extends through the bottom of the boom, and a blocking part is provided at the bottom of the boom.

[0014] Furthermore, the blocking part includes a threaded rod, the bottom of which is fixedly connected to a cover plate, and the bottom of the rod is provided with a threaded groove, the threaded rod being threadedly connected to the threaded groove.

[0015] Furthermore, the boom is provided with anti-slip grooves.

[0016] Furthermore, the boom, basket, mounting sleeve, and fasteners are all made of heat-resistant steel.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows: When using this heat treatment suspension device, the basket is installed on the suspension rod through the installation sleeve according to the work requirements. After installation, the workpiece is placed on the workpiece slot. After placement, the suspension rod is clamped by an external device and placed inside the predetermined heating furnace for heat treatment. Since the workpiece is located in the workpiece slot, the accumulation of workpieces can be avoided, further improving the practicality of the suspension device.

[0018] Meanwhile, by sliding the mounting sleeve and the lifting rod, the distance between the two lifting baskets can be adjusted according to the needs of different models and sizes of workpieces, so as to avoid affecting the heat treatment requirements of the workpieces. At the same time, when the heat treatment processes are similar, they can be produced in the same furnace on the same line, further improving the applicability of the lifting tool and making the use effect better. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0020] Figure 1 This is a schematic diagram of a partial lifting device structure provided in one embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the overall structure of the lifting device provided in another embodiment of the present utility model;

[0022] Figure 3 A schematic diagram of a threaded component installation method provided in another embodiment of this utility model;

[0023] Figure 4 This is a partial schematic diagram of a positioning mechanism provided in another embodiment of the present utility model;

[0024] Figure 5 This is a schematic diagram of the mounting sleeve structure provided for another embodiment of the present utility model.

[0025] Explanation of reference numerals in the attached drawings: 1. Hanging rod; 2. Hanging basket; 3. Mounting sleeve; 4. Workpiece groove; 5. Anti-slip groove; 6. Blocking part; 7. Vertical groove; 8. Blocking groove; 9. Guide groove; 10. Limiting block; 11. Snap-fit ​​part. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1-5 This utility model provides a technical solution: a suspension hanger for heat treatment, including a suspension rod 1, at least one hanging basket 2 is provided on the suspension rod 1, and at least one workpiece groove 4 for installing workpieces is provided on the hanging basket 2; mounting sleeves 3 are provided on both sides of the suspension rod 1, and the hanging basket 2 is mounted on the suspension rod 1 through the mounting sleeves 3.

[0028] Specifically, the heat treatment suspension device includes a suspension rod 1, which is a one-piece heat-resistant round steel inverted U-shaped frame with a large chamfered corner at the top of the U-shape forming a ring. At least one hanging basket 2 is provided on the suspension rod 1. The number of hanging baskets 2 can be selected according to the working environment requirements, such as one, two, or three, to further meet the needs. Each hanging basket 2 has at least one workpiece slot 4 for mounting workpieces, allowing for better workpiece installation. The size and opening of the workpiece slot 4 can be designed according to different workpiece requirements. If necessary, wire and / or pins can be used for binding, enabling flexible compatibility of various types and specifications of workpieces, such as shafts, connecting rods, and ring-shaped irregular parts. When heat treatment processes are similar, they can be produced in the same furnace on the same production line, further improving the applicability of the suspension device. Mounting sleeves 3 are provided on both sides of the suspension rod 1, and the hanging basket 2 is mounted on the suspension rod 1 through the mounting sleeves 3, thereby improving the stability of the hanging basket 2 during installation.

[0029] Specifically, in use, the hanging basket 2 is installed on the lifting rod 1 through the mounting sleeve 3 according to the work requirements. After installation, the workpiece is placed on the workpiece groove 4. After placement, the lifting rod 1 is clamped by an external device and placed inside the predetermined heating furnace for heat treatment. Since the workpiece is located in the workpiece groove 4, the accumulation of workpieces can be avoided, further improving the practicality of the hanging tool.

[0030] In the embodiments provided by this utility model, the mounting sleeve 3 is fixedly connected to the lifting rod 1, and the basket 2 and the mounting sleeve 3 are welded together by reinforcing ribs. In this embodiment, the fixing sleeve is a conical through-hole design, the diameter of its through hole is equal to the diameter of the through hole of the basket 2, and it is clearance-fitted with the outer diameter of the lifting rod 1. The diameter of its upper plane is slightly smaller than the diameter of the through hole of the basket 2, which can further improve the stability of the mounting sleeve 3 and the lifting rod 1 during installation, thereby improving the service life of the lifting device.

[0031] In another embodiment of this utility model, the mounting sleeve 3 is slidably connected to the lifting rod 1, thus allowing the distance between multiple lifting baskets 2 to be adjusted according to the size of the workpiece, further meeting work requirements. The mounting sleeve 3 is rotatably connected to the lifting basket 2 via a snap-fit ​​member 11, improving the stability between the mounting sleeve 3 and the lifting basket 2 and meeting work requirements. A positioning mechanism is provided between the mounting sleeve 3 and the lifting rod 1; once the lifting basket 2 is adjusted to its position, the positioning mechanism fixes the state of the lifting basket 2, facilitating the use of the entire lifting device. Therefore, by sliding the mounting sleeve 3 and the lifting rod 1, the distance between two lifting baskets 2 can be adjusted according to the needs of workpieces of different models and sizes, avoiding interference with the heat treatment requirements of the workpiece. Furthermore, when the heat treatment processes are similar, they can be produced in the same furnace on the same production line, further improving the applicability of the lifting device and resulting in better performance.

[0032] In the embodiments provided by this utility model, the positioning mechanism includes a limiting block 10 fixedly connected to the mounting sleeve 3, and a vertical groove 7 and a blocking groove 8 are provided on the hanging rod 1. The blocking groove 8 and the vertical groove 7 are connected by a guide groove 9. Specifically, there are multiple sets of blocking grooves 8 and guide grooves 9, all of which are provided on the hanging rod 1. The distance of the hanging basket 2 can be adjusted as needed to meet the working requirements.

[0033] In the embodiments provided by this utility model, the size of the limiting block 10 is adapted to the size of the blocking groove 8 to improve the stability of the mounting sleeve 3 when it is installed on the lifting rod 1. When it is necessary to adjust the height of the hanging basket 2, the hanging basket 2 is first driven to slide the mounting sleeve 3 on the lifting rod 1. At this time, the limiting block 10 on the mounting sleeve 3 slides vertically in the vertical groove 7. After sliding to the predetermined position, the mounting sleeve 3 is rotated, and the limiting block 10 on the mounting sleeve 3 enters the blocking groove 8 through the guide groove 9. Then, the mounting sleeve 3 is driven to slide down a certain distance. At this time, the limiting block 10 is engaged at the bottom of the blocking groove 8, which can fix the state of the hanging basket 2 and facilitate the use of the workpiece heat treatment operation in the later stage.

[0034] In the embodiments provided by this utility model, the snap-fit ​​component 11 includes an annular component fixedly connected to the mounting sleeve 3, and an annular groove is provided at the bottom of the hanging basket 2. The annular component is rotatably connected in the annular groove, thereby improving the stability when the mounting sleeve 3 is connected to the hanging basket 2.

[0035] In the embodiments provided by this utility model, the vertical groove 7 extends through the bottom of the suspension rod 1, and the bottom of the suspension rod 1 is provided with a blocking part 6, which facilitates the removal of the basket 2 from the suspension rod 1 by driving the mounting sleeve 3, thus facilitating the installation and removal of the basket 2.

[0036] In the embodiments provided by this utility model, the blocking part 6 includes a threaded rod, a cover plate is fixedly connected to the bottom of the threaded rod, and a threaded groove is opened at the bottom of the lifting rod 1. The threaded rod is threadedly connected to the threaded groove. When it is necessary to disassemble the basket 2, the threaded rod is taken out from the threaded groove, which facilitates the installation of the sleeve 3 and the disassembly of the basket 2 from the lifting rod 1, further meeting the work requirements.

[0037] In the embodiments provided by this utility model, the lifting rod 1 is provided with an anti-slip groove 5, which further improves the stability of the lifting device during use, reduces the shaking of the lifting device, and avoids affecting the heat treatment operation of the workpiece.

[0038] In the embodiments provided by this utility model, the lifting rod 1, the lifting basket 2, the mounting sleeve 3, and the snap-fit ​​component 11 are all made of heat-resistant steel, which improves the service life of the lifting device. Furthermore, the entire lifting device structure will not deform during heat treatment, meeting operational requirements. Through lifespan limit testing, the optimal composition range of the heat-resistant steel is: C: 0.3-0.5%, Si: 1.0-2.5%, P: ≤0.04%, S: ≤0.03%, Cr: 24-27%, Ni: 19-22%, further improving the service life of the lifting device.

[0039] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A suspension hanger for heat treatment, comprising a suspension rod (1), characterized in that: At least one basket (2) is provided on the boom (1), and each basket (2) is provided with at least one workpiece groove (4) for installing workpieces. Mounting sleeves (3) are provided on both sides of the boom (1), and the basket (2) is mounted on the boom (1) through the mounting sleeves (3); The mounting sleeve (3) is slidably connected to the boom (1), and the mounting sleeve (3) is rotatably connected to the basket (2) through the snap fastener (11), and a positioning mechanism is provided between the mounting sleeve (3) and the boom (1); The positioning mechanism includes a limiting block (10) fixedly connected to the mounting sleeve (3), and the rod (1) is provided with a vertical groove (7) and a blocking groove (8). The blocking groove (8) and the vertical groove (7) are connected by a guide groove (9).

2. The suspension hanger for heat treatment according to claim 1, characterized in that: The mounting sleeve (3) is fixedly connected to the boom (1), and the basket (2) and the mounting sleeve (3) are welded together by reinforcing ribs.

3. The suspension hanger for heat treatment according to claim 1, characterized in that: The size of the limiting block (10) is adapted to the size of the blocking groove (8) to improve the stability of the mounting sleeve (3) when it is installed on the rod (1).

4. The suspension hanger for heat treatment according to claim 1, characterized in that: The snap-fit ​​component (11) includes an annular component fixedly connected to the mounting sleeve (3), and the bottom of the hanging basket (2) is provided with an annular groove, and the annular component is rotatably connected in the annular groove.

5. A suspension hanger for heat treatment according to claim 1, characterized in that: The vertical groove (7) extends through the bottom of the rod (1), and a blocking part (6) is provided at the bottom of the rod (1).

6. A suspension hanger for heat treatment according to claim 5, characterized in that: The blocking part (6) includes a threaded rod, a cover plate is fixedly connected to the bottom of the threaded rod, and a threaded groove is opened at the bottom of the lifting rod (1), and the threaded rod is threadedly connected to the threaded groove.

7. A suspension hanger for heat treatment according to claim 1, characterized in that: The rod (1) is provided with anti-slip grooves (5).

8. A suspension hanger for heat treatment according to claim 1, characterized in that: The boom (1), basket (2), mounting sleeve (3), and snap-fit ​​(11) are all made of heat-resistant steel.

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