A kind of in and out material supporting device for heavy metal ingot horizontal induction heating furnace

Abstract

The utility model relates to metal material heat treatment equipment technical field, and disclose a kind of for heavy metal ingot horizontal induction heating furnace's in-out material supporting device, including horizontal induction heating furnace body, furnace, backing plate and drive arrangement, the bottom peripheral wall of furnace is radially symmetrical and several groups of mounting holes are set up, mounting hole is evenly arranged three groups in the axial direction of furnace, the inside of furnace is provided with hearth, and the inside of hearth is provided with bar body, and the outer wall of mounting hole is fixedly provided with flanging coil;Each mounting hole is provided with one support roller assembly, it is favorable to realize the automatic centering and anti-deviation of backing plate, guarantee in-out material straight line stability, when backing plate carries bar body and advances deviation, reverse rectification component force is generated in 'V type' structure, force backing plate to return to center line;Meanwhile, roller head rotates through deep groove ball bearing, sliding friction is converted into rolling friction, reduce drive arrangement power requirement, let in-out material be more smooth.

Description

Technical Field

[0001] This utility model relates to the technical field of heat treatment equipment for metal materials, and more specifically to a feeding and discharging support device for a horizontal induction heating furnace for heavy metal ingots. Background Technology

[0002] In the metalworking industry, large metal ingots typically require uniform heating in a horizontal induction furnace before rolling or forging. Due to the extreme weight of these ingots (often reaching 10 tons or more), their loading and unloading from the furnace presents a significant challenge. Currently, the common practice is to place the ingot on a metal pallet, and use an external push-pull device (such as a hydraulic pusher or chain drive) to push the pallet, causing the ingot to slide forward or backward within a coil (furnace chamber) inside the furnace. The furnace chamber is usually made of non-magnetic materials (such as stainless steel), with a smooth interior but limited strength.

[0003] A search revealed that patent CN218618970U discloses a "medium-frequency induction furnace unloading device" and its derivative improvements. This device uses symmetrical slide rails on a base to support a support platform, which, in conjunction with a pusher mechanism composed of cross-links, pushes materials in and out of the furnace. To address the issue of deformation of a single slide rail under heavy loads, this technology uses pads to distribute the weight of the support platform to the pusher and slide rails. Additionally, oil grooves and air bladders are installed within the slide rails, utilizing the air bladders to expel air for automatic lubrication, thus reducing sliding friction.

[0004] The shortcomings of existing technology are as follows: The huge weight of the ingot and pallet acts directly on the inner wall of the furnace, forming severe sliding friction. Long-term use will inevitably lead to scratches, wear, deformation and even cracks on the inner wall of the furnace. The equipment needs to be repaired frequently and its lifespan is shortened. It is necessary to overcome huge static and sliding friction forces, which requires high power of drive motor, hydraulic system or chain, resulting in high energy consumption. Moreover, the drive mechanism itself is also prone to overload damage. Fluctuations in friction force may cause the ingot to "jam" or "creep" during the feeding and discharging process. At the same time, during long-stroke propulsion, the pallet is prone to biased sliding due to uneven force, scraping against the inner wall of the furnace, further aggravating equipment damage and unstable operation.

[0005] Therefore, there is a need to provide a feeding and discharging support device for a horizontal induction heating furnace for heavy metal ingots to solve the above-mentioned problems. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a feeding and discharging support device for a horizontal induction heating furnace for heavy metal ingots, so as to solve the problems existing in the background art.

[0007] This utility model provides the following technical solution: a feeding and discharging support device for a horizontal induction heating furnace for heavy metal ingots, comprising a furnace body, a furnace liner, a support plate, and a driving device.

[0008] Several sets of mounting holes are radially symmetrically opened on the bottom peripheral wall of the furnace chamber. Three sets of mounting holes are evenly arranged in the axial direction of the furnace chamber. A furnace chamber is opened inside the furnace chamber. A bar stock body is set inside the furnace chamber. A flanged coil is fixedly installed on the outer wall of the mounting hole.

[0009] Each set of mounting holes is provided with a support roller assembly, the support roller assembly comprising:

[0010] Support rod: One end of the support rod passes through the mounting hole on the furnace wall and extends into the furnace chamber. The other end of the support rod is fixedly equipped with a locking nut. The other end of the support rod is connected to the external fixed furnace frame through the locking nut. The support rod is isolated from the furnace chamber opening by a high-temperature sealing component.

[0011] Height adjustment shim: The height adjustment shim is fitted onto the support rod and is located between the mounting base of the support rod and the locking nut;

[0012] Roller head: The roller head is mounted on the end of a support rod located inside the furnace via a bearing;

[0013] Preferably, the upper edges of the three sets of supporting roller assemblies are set slightly higher than the inner bottom wall surface of the furnace lining by height adjustment shims, and the pallet carries the bar stock into the furnace, forming a small gap between the bottom surface of the pallet and the inner bottom wall of the furnace lining.

[0014] Preferably, each set of mounting holes includes two radially symmetrical slots, and the line connecting the centers of the two slots forms an angle α with the vertical direction, wherein the value of the angle α ranges from ° to °.

[0015] Preferably, the support rod is made of a heat-resistant metal material, which is stainless steel, the roller head is made of a high-temperature structural ceramic, which is zirconium oxide, and the bearing used to install the roller head is a deep groove ball bearing.

[0016] Preferably, the length of the pallet exceeds two meters, and the three sets of support roller assemblies are matched with the length of the pallet to provide support.

[0017] Preferably, each pair of the support roller assemblies arranged radially symmetrically constitutes a V-shaped guide support structure, which can generate an automatic centering constraint force on the pallet in the horizontal direction.

[0018] The technical effects and advantages of this utility model are as follows:

[0019] 1. This utility model uses mounting holes that are radially symmetrical and whose center line forms an angle α of 15° to 30° with the vertical direction, and corresponding support roller assemblies to form a "V-shaped" guide support structure. This facilitates automatic centering and anti-deviation of the pallet, ensuring the linear stability of material feeding and discharging. When the pallet carrying the bar stock deviates from its original position, the "V-shaped" structure generates a reverse correction force, forcing the pallet to return to the center line. At the same time, the roller head rotates through a deep groove ball bearing, converting sliding friction into rolling friction, reducing the power requirements of the drive device, and making material feeding and discharging smoother.

[0020] 2. This utility model solves the problem of bending deformation of pallets longer than two meters under heavy load by evenly arranging three sets of support roller assemblies along the axial direction of the furnace shell. The three sets of support roller assemblies provide support from both ends and the middle of the pallet, greatly improving the rigidity of the pallet, counteracting the downward trend in the middle, and preventing the pallet from contacting and scraping against the inner bottom wall of the furnace shell. Furthermore, by setting the upper edge of the support roller assembly slightly higher than the inner bottom wall of the furnace shell through height adjustment shims, it further ensures the smooth transport of the pallet and reduces component wear.

[0021] 3. This utility model, by fitting height adjustment shims onto the support rod, facilitates independent and precise adjustment of the roller head height, enhancing the device's versatility and installation adaptability. On one hand, it compensates for manufacturing and installation errors, ensuring that the upper edge of all roller heads is at the same ideal height; on the other hand, it flexibly adapts to the lower busbar positions of furnace liner of different diameters and models, eliminating the need for separate support devices for different furnace liner types, reducing equipment replacement and maintenance costs, and expanding the scope of application. The use of stainless steel for the support rod and zirconia for the roller heads, along with high-temperature seals at the openings between the support rod and the furnace liner, improves the device's high-temperature adaptability and durability. The stainless steel support rod resists high-temperature oxidation and corrosion, the zirconia roller heads are high-temperature resistant and wear-resistant, and the high-temperature seals prevent leakage of high-temperature gases from the furnace, ensuring stable operation of the device in the high-temperature environment of the heating furnace, reducing downtime and maintenance due to high-temperature damage, and extending service life. Attached Figure Description

[0022] Figure 1 This is a longitudinal sectional view of the overall structure of this utility model.

[0023] Figure 2 This is an axial sectional view of the overall structure of this utility model.

[0024] The attached figures are labeled as follows: 1. Horizontal induction heating furnace body; 2. Furnace chamber; 201. Furnace lining; 3. Support plate; 4. Mounting hole; 5. Support roller assembly; 6. Support rod; 7. Height adjustment shim; 8. Locking nut; 9. Fixed furnace frame; 10. Roller head; 11. Bar stock body; 12. Flanged coil. Detailed Implementation

[0025] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The feeding and discharging support device for a horizontal induction heating furnace for heavy metal ingots involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0026] like Figure 1-2 As shown, this utility model has the following two specific embodiments.

[0027] Example 1

[0028] This utility model relates to a feeding and discharging support device for a horizontal induction heating furnace for heavy metal ingot casting, comprising a furnace body 1, a furnace liner 2, a support plate 3, and a driving device, characterized in that:

[0029] Several sets of mounting holes 4 are radially symmetrically opened on the bottom peripheral wall of the furnace 2. The mounting holes 4 are evenly arranged in three sets along the axial direction of the furnace 2. The furnace 2 has a furnace chamber 201 inside, and a bar stock body 11 is set inside the furnace chamber 201. A flanged coil 12 is fixedly set on the outer wall of the mounting holes 4.

[0030] Each set of mounting holes 4 is provided with a support roller assembly 5, and the support roller assembly 5 includes:

[0031] Support rod 6: One end of the support rod 6 passes through the mounting hole 4 on the wall of the furnace liner 2 and extends into the furnace chamber 201. The other end of the support rod 6 is fixedly provided with a locking nut 8. The other end of the support rod 6 is connected to the external fixed furnace frame 9 through the locking nut 8. The support rod 6 and the opening of the furnace liner 2 are isolated by a high-temperature sealing component.

[0032] Height adjustment shim 7: The height adjustment shim 7 is fitted onto the support rod 6 and is located between the mounting base surface of the support rod 6 and the locking nut 8;

[0033] Roller head 10: The roller head 10 is mounted on the end of the support rod 6 located inside the furnace chamber 201 via a bearing.

[0034] The upper edge of the three sets of support roller assemblies 5 is set slightly higher than the inner bottom wall surface of the furnace liner 2 by the height adjustment shim 7. The support plate 3 carries the bar stock body 11 into the furnace chamber 201, and a small gap is formed between the bottom surface of the support plate 3 and the inner bottom wall of the furnace liner 2.

[0035] Each set of mounting holes 4 contains two radially symmetrical slots, and the line connecting the centers of the two slots forms an angle α with the vertical direction, with the value of angle α ranging from 15° to 30°.

[0036] The support rod 6 is made of heat-resistant metal material, which is stainless steel. The roller head 10 is made of high-temperature structural ceramic, which is zirconium oxide. The bearing used to install the roller head 10 is a deep groove ball bearing.

[0037] In this embodiment, as Figure 1 As shown, the mounting holes 4, which are radially symmetrical and whose center lines form an angle α of 15° to 30° with the vertical direction, and the corresponding support roller assembly 5, constitute a "V-shaped" guide support structure. This structure is conducive to the automatic centering and anti-deviation of the pallet 3, ensuring the straight-line stability of the feeding and discharging. When the pallet 3 carries the bar stock body 11 and deviates, the "V-shaped" structure generates a reverse correction force, forcing the pallet 3 to return to the center line. At the same time, the roller head 10 rotates through the deep groove ball bearing, converting sliding friction into rolling friction.

[0038] Example 2

[0039] The difference from Embodiment 1 is that this embodiment discloses that the length of the pallet 3 exceeds two meters, and three sets of support roller assemblies 5 are matched with the length of the pallet 3 to provide support.

[0040] Each pair of radially symmetrically arranged support roller assemblies 5 constitutes a V-shaped guide support structure, which can generate an automatic centering constraint force on the pallet 3 in the horizontal direction.

[0041] In this embodiment, as Figure 1-2 As shown, the three sets of support roller assemblies 5 provide support from both ends and the middle of the pallet 3, which greatly improves the rigidity of the pallet 3, counteracts the downward trend in the middle, and avoids the pallet 3 from contacting and scraping against the inner bottom wall of the furnace liner 2; and by using the height adjustment shims 7 to set the upper edge of the support roller assembly 5 slightly higher than the inner bottom wall of the furnace liner 2, it further ensures that the pallet 3 is transported smoothly.

[0042] The working principle of this utility model is as follows: First, one end of the support rod 6 in the support roller assembly 5 is inserted into the furnace chamber 201 through the pre-set mounting hole 4 on the wall of the furnace chamber 2. The other end of the support rod 6 is connected to the external fixed furnace frame 9 through the locking nut 8. At the same time, a height adjustment shim 7 is fitted between the mounting base of the support rod 6 and the locking nut 8. By increasing or decreasing the number of height adjustment shims 7 or replacing them with height adjustment shims 7 of different thicknesses, the height of each roller head 10 can be independently and precisely adjusted. This compensates for manufacturing and installation errors and ensures that the upper edges of the roller heads 10 of the three sets of support roller assemblies 5 are strictly at the same ideal height. On the other hand, according to the lower generatrix position of the furnace chamber 2 of different diameters and models of induction heating furnaces, the roller head 10 is flexibly adjusted to ensure that the roller head 10 can accurately support the support plate 3, while ensuring that the bottom surface of the support plate 3 forms a small gap with the inner bottom wall of the furnace chamber 2, avoiding direct contact between the support plate 3 and the inner bottom wall of the furnace chamber 2. When the drive device pushes the support plate 3 carrying the bar stock body 11 into the furnace chamber 201, the bottom of the support plate 3 contacts the roller head 10. The roller head 10 can rotate flexibly through the deep groove ball bearing, converting the sliding friction between the support plate 3 and the roller head 10 into rolling friction; if the support plate 3 deviates slightly during the pushing process, "V" The inclined surface of the "type" structure generates a reverse corrective force on the pallet 3, forcing the pallet 3 to return to the centerline position and achieve automatic centering. Three sets of support roller assemblies 5 are evenly arranged in the axial direction of the furnace liner 2 to form a multi-point support structure. When the pallet 3 carries the bar stock body 11, the three sets of support roller assemblies 5 provide support from both ends and the middle of the pallet 3, respectively, which greatly improves the rigidity of the pallet 3 during the conveying process, effectively counteracts the tendency of the pallet 3 to sag in the middle due to heavy load, and avoids the pallet 3 from contacting and scraping against the inner bottom wall of the furnace liner 2 after bending and deformation, ensuring that the pallet 3 always remains stable. At the same time, the design of rolling friction instead of sliding friction reduces the power required for the drive device to push the pallet 3, making the feeding and discharging process easier and smoother.

[0043] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0044] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0045] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 feeding and discharging support device for a horizontal induction heating furnace for heavy metal ingot casting, comprising a furnace body (1), a furnace liner (2), a support plate (3), and a driving device, characterized in that: Several sets of mounting holes (4) are radially symmetrically opened on the bottom peripheral wall of the furnace (2). The mounting holes (4) are evenly arranged in three sets along the axial direction of the furnace (2). A furnace chamber (201) is opened inside the furnace (2). A bar stock body (11) is set inside the furnace chamber (201). A flanged coil (12) is fixedly set on the outer wall of the mounting holes (4). Each set of mounting holes (4) is provided with a support roller assembly (5), the support roller assembly (5) comprising: Support rod (6): One end of the support rod (6) passes through the mounting hole (4) on the wall of the furnace (2) and extends into the furnace chamber (201). The other end of the support rod (6) is fixedly provided with a locking nut (8). The other end of the support rod (6) is connected to the external fixed furnace frame (9) through the locking nut (8). The support rod (6) and the opening of the furnace chamber (2) are isolated by a high-temperature sealing component. Height adjustment shim (7): The height adjustment shim (7) is fitted onto the support rod (6) and is located between the mounting base of the support rod (6) and the locking nut (8); Roller head (10): The roller head (10) is mounted on the end of the support rod (6) located inside the furnace (201) via a bearing.

2. The feeding and discharging support device for a horizontal induction heating furnace for heavy metal ingots according to claim 1, characterized in that: The upper edge of the three sets of support roller assemblies (5) is set higher than the inner bottom wall surface of the furnace liner (2) by the height adjustment shim (7). The pallet (3) carries the bar stock body (11) into the furnace chamber (201). A small gap is formed between the bottom surface of the pallet (3) and the inner bottom wall of the furnace liner (2).

3. The feeding and discharging support device for a horizontal induction heating furnace for heavy metal ingots according to claim 1, characterized in that: Each set of mounting holes (4) includes two radially symmetrical slots, and the line connecting the centers of the two slots forms an angle α with the vertical direction, the angle α ranging from 15° to 30°.

4. The feeding and discharging support device for a horizontal induction heating furnace for heavy metal ingots according to claim 1, characterized in that: The support rod (6) is made of heat-resistant metal material, which is stainless steel. The roller head (10) is made of high-temperature structural ceramic, which is zirconium oxide. The bearing used to install the roller head (10) is a deep groove ball bearing.

5. The feeding and discharging support device for a horizontal induction heating furnace for heavy metal ingots according to claim 1, characterized in that: The length of the pallet (3) exceeds two meters, and the three sets of the support roller assemblies (5) are matched with the length of the pallet (3) to provide support.

6. The feeding and discharging support device for a horizontal induction heating furnace for heavy metal ingots according to claim 1, characterized in that: Each pair of radially symmetrically arranged support roller assemblies (5) constitutes a V-shaped guide support structure, which generates an automatic centering constraint force on the pallet (3) in the horizontal direction.

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