Quickly dismounting structure of furnace lining of intermediate frequency furnace

Abstract

The utility model relates to a furnace lining structure of intermediate frequency furnace, concretely is a kind of furnace lining structure of quick dismounting of intermediate frequency furnace, including support, furnace cover and furnace body, the inner wall on the both sides of furnace body is opened sliding cavity and is arranged in the furnace lining body of furnace body inside, the furnace body and furnace lining body are all elliptical design, the both sides of furnace lining body are equipped with the clamping slot, the bottom of furnace body is slidably installed with lifting disc and the transmission part installed in the bottom of lifting disc, the both ends of transmission part are equipped with limit slot, the utility model is unlocked by the innovative design of gravity linkage locking and screw rod drive, realizes the full-process automation of furnace lining installation, fixed and dismounting, after furnace lining is guided from furnace body top, utilize self gravity trigger linkage mechanism, drive the locking lug of both sides to contract along radial direction inward, accurately clamped in furnace lining preset clamping slot, form mechanical self-locking structure, this process does not need additional tool or manpower intervention.

Description

Technical Field

[0001] This utility model relates to a furnace lining structure for a medium-frequency furnace, specifically a quick-assembly and disassembly furnace lining structure for a medium-frequency furnace. Background Technology

[0002] An intermediate frequency furnace is a device that uses the principle of electromagnetic induction to heat and melt metals. Its core is to use intermediate frequency alternating current to generate a rapidly changing magnetic field through an induction coil, which causes a strong induced current to be generated inside the metal charge placed inside the coil. When the current flows inside the metal, Joule heating is generated due to resistance, thereby heating the metal itself until it melts.

[0003] The furnace lining inside an intermediate frequency furnace, also known as a crucible or refractory lining, is a protective layer made of refractory materials that are knotted or built up. It is in direct contact with the high-temperature molten metal. The furnace lining is an indispensable high-temperature resistant and corrosion-resistant protective layer and container inside the intermediate frequency furnace. There are various methods for fixing the furnace lining inside the industrial furnace, and the choice depends on the furnace type, operating temperature, material properties and production process requirements.

[0004] There are three methods for fixing furnace linings: masonry, casting, or anchor fixing. Masonry and casting methods fix the lining to the inner wall of the furnace body in an integral molding manner. However, this method requires breaking the lining when replacing it. Anchor fixing is welded to the furnace shell steel plate, penetrates the lining, and is locked by tightening nuts. Installation relies on manual bolt tightening, which is time-consuming and labor-intensive. In addition, the anchor nails are welded with refractory material, which is prone to loosening and displacement due to vibration or thermal expansion and contraction, affecting the safety of the furnace body. Utility Model Content

[0005] The purpose of this invention is to provide a quick-assembly and disassembly structure for the furnace lining of a medium-frequency furnace, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A quick-assembly and disassembly furnace lining structure for a medium-frequency furnace includes a support, a furnace cover, and a furnace body. Sliding cavities are formed on the inner walls of both sides of the furnace body, and a furnace lining body is disposed inside the furnace body. Both the furnace body and the furnace lining body are elliptical in shape. Slots are formed on both sides of the furnace lining body. A lifting disc and a transmission component are slidably mounted on the bottom of the furnace body. Limiting grooves are formed at both ends of the transmission component. A limiting chamber and a screw lifting mechanism are provided at the bottom of the limiting chamber. A fixing and locking mechanism for limiting the furnace lining body and a sliding separation mechanism that engages with the fixing and locking mechanism in a compression manner are provided at the bottom of the furnace body.

[0007] The quick-assembly and disassembly furnace lining structure of the medium-frequency furnace as described above: The screw lifting mechanism includes a worm gear screw lifting platform set at the bottom of the limiting chamber and a drive motor set on one side of the worm gear screw lifting platform. An adjusting screw and an internally threaded moving block threaded on the adjusting screw are provided above the worm gear screw lifting platform.

[0008] The quick-assembly and disassembly furnace lining structure of the medium-frequency furnace as described above: the fixing and locking mechanism includes two limiting frames fixed to the bottom of the limiting chamber and a connecting arm slidably mounted on the limiting frame. The two connecting arms are symmetrically designed.

[0009] The quick-assembly and disassembly furnace lining structure of the medium-frequency furnace as described above: the fixing and locking mechanism also includes a locking protrusion connected to one end of the connecting arm. The two locking protrusions are slidably mounted on the two sliding cavities respectively, and the two locking protrusions are respectively located on both sides of the furnace lining body.

[0010] The quick-assembly and disassembly furnace lining structure of the medium-frequency furnace as described above: two return springs are provided at the top of the limiting chamber, the transmission component slides inside the limiting chamber, and the upper ends of the two return springs are connected to the transmission component.

[0011] The quick-release furnace lining structure of the medium-frequency furnace as described above: the sliding separation mechanism includes a sliding plate fixed to the top of the internal thread moving block and two inclined extrusion blocks symmetrically arranged on the top of the sliding plate.

[0012] The quick-assembly and disassembly furnace lining structure of the medium-frequency furnace as described above: the sliding separation mechanism also includes two beveled blocks fixed to one end of the two connecting arms respectively. The two beveled blocks are slidably engaged with the limiting grooves on both sides of the transmission component. The sliding plate slides on the limiting grooves, and the two beveled pressing blocks are respectively pressed into the two beveled blocks.

[0013] Compared with the prior art, the beneficial effects of this utility model are: through the innovative design of gravity linkage locking and screw drive unlocking, the entire process of furnace lining installation, fixing and disassembly is automated. After the furnace lining is introduced from the top of the furnace body, it uses its own gravity to trigger the linkage mechanism, which drives the locking protrusions on both sides to retract radially inward and accurately engage in the preset slot of the furnace lining to form a mechanical self-locking structure. This process does not require additional tools or human intervention. This utility model also integrates a worm gear lifting mechanism at the bottom of the furnace body, which achieves uniform lifting through electric drive. During the lifting process, the locking protrusions on both sides are pushed outward synchronously to release the lock, and the furnace lining is pushed out smoothly at the same time. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the quick-assembly and disassembly furnace lining structure for an intermediate frequency furnace.

[0015] Figure 2This is a side view of the quick-assembly and disassembly furnace lining structure of an intermediate frequency furnace.

[0016] Figure 3 This is a schematic diagram of the furnace body structure in the quick-assembly and disassembly furnace lining structure of an intermediate frequency furnace.

[0017] Figure 4 This is a schematic diagram of the internal structure of the furnace body in the quick-assembly and disassembly furnace lining structure of an intermediate frequency furnace.

[0018] Figure 5 This is a schematic diagram of the screw lifting mechanism, the fixing and locking mechanism, and the sliding separation mechanism in the quick-assembly and disassembly furnace lining structure of an intermediate frequency furnace.

[0019] Figure 6 This is a schematic diagram of the internal structure of the furnace body in the disassembled state during the quick disassembly and assembly of the furnace lining structure of the medium-frequency furnace.

[0020] Figure 7 This is a schematic diagram of the disassembly state of the quick-release furnace lining structure of an intermediate frequency furnace.

[0021] Figure 8 This is a schematic diagram of the lifting disc and transmission components in the quick-assembly and disassembly furnace lining structure of an intermediate frequency furnace.

[0022] Figure 9 This is a schematic diagram of the screw lifting mechanism in the quick-assembly and disassembly furnace lining structure of an intermediate frequency furnace.

[0023] In the diagram: 1. Support; 2. Furnace cover; 3. Furnace body; 4. Sliding cavity; 5. Furnace lining body; 6. Lifting disc; 7. Transmission component; 8. Limiting groove; 9. Limiting chamber; 10. Return spring; 11. Worm gear screw lifting platform; 12. Drive motor; 13. Adjusting screw; 14. Internal thread moving block; 15. Sliding plate; 16. Beveled extrusion block; 17. Limiting frame; 18. Connecting arm; 19. Locking protrusion; 20. Angled insert block. Detailed Implementation

[0024] 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.

[0025] Please see Figures 1-9As an embodiment of this utility model, the quick-assembly and disassembly furnace lining structure of the medium-frequency furnace includes a support 1, a furnace cover 2, and a furnace body 3. Sliding cavities 4 are opened on the inner walls on both sides of the furnace body 3, and a furnace lining body 5 is disposed inside the furnace body 3. Both the furnace body 3 and the furnace lining body 5 are elliptical in design. The furnace lining body 5 has slots on both sides. A lifting disc 6 and a transmission component 7 are slidably installed at the bottom of the furnace body 3. Limiting grooves 8 are opened at both ends of the transmission component 7. A limiting chamber 9 and a screw lifting mechanism are provided at the bottom of the limiting chamber 9. A fixing and locking mechanism for limiting the furnace lining body 5 and a sliding separation mechanism that is squeezed into the fixing and locking mechanism are provided at the bottom of the furnace body 3.

[0026] In this embodiment, when installing the furnace lining body 5, the furnace lining body 5 is introduced from the top of the furnace body 3 and then slides down to the bottom of the furnace body 3. At this time, the furnace lining body 5 triggers the linkage mechanism by its own gravity. At this time, the fixing and locking mechanism protrusion retracts radially inward and precisely engages in the preset slot of the furnace lining body 5, forming a mechanical self-locking structure. This process does not require additional tools or human intervention. At the same time, when disassembling the furnace lining body 5, the worm gear screw lifting mechanism integrated at the bottom of the furnace body 3 is activated to lift it at a uniform speed. During the lifting process, the fixing and locking mechanism can be pushed to expand outward and release the lock, while the furnace lining is smoothly pushed out, thereby realizing the full automation of the furnace lining installation, fixing and disassembly process.

[0027] As a further embodiment of this utility model, the screw lifting mechanism includes a worm gear screw lifting platform 11 disposed at the bottom of the limiting chamber 9 and a drive motor 12 disposed on one side of the worm gear screw lifting platform 11. An adjusting screw 13 and an internally threaded moving block 14 threadedly mounted on the adjusting screw 13 are disposed above the worm gear screw lifting platform 11.

[0028] In this embodiment, the output shaft of the drive motor 12 acts on the inside of the worm gear screw lifting platform 11, causing the worm gear inside to rotate, which in turn drives the adjusting screw 13 to rotate. After the adjusting screw 13 rotates, the internal thread moving block 14 is lifted and moved.

[0029] As a further embodiment of this utility model, the fixing and locking mechanism includes two limiting frames 17 fixed to the bottom of the limiting chamber 9 and a connecting arm 18 slidably mounted on the limiting frame 17. The two connecting arms 18 are symmetrically designed.

[0030] In this embodiment, two connecting arms 18 are respectively disposed on both sides of the furnace body 3. The two connecting arms 18 slide on two limiting frames 17 respectively, and a damping spring is provided between the limiting frame 17 and the connecting arm 18, which can provide an inward force to the two connecting arms 18.

[0031] As a further embodiment of this utility model, the fixing and locking mechanism also includes a locking protrusion 19 connected to one end of the connecting arm 18. The two locking protrusions 19 are slidably mounted on the two sliding cavities 4 respectively, and the two locking protrusions 19 are respectively arranged on both sides of the furnace lining body 5.

[0032] In this embodiment, two locking protrusions 19 are used to limit and lock the furnace lining body 5. Both the furnace body 3 and the furnace lining body 5 are elliptical in design. When the furnace lining body 5 slides into the interior of the furnace lining body 5, the slots on both sides can correspond to the locking protrusions 19 on the side.

[0033] As a further embodiment of this utility model, the top of the limiting chamber 9 is provided with two return springs 10, the transmission component 7 slides inside the limiting chamber 9, and the upper ends of the two return springs 10 are connected to the transmission component 7.

[0034] In this embodiment, the reset spring 10 can reset the transmission component 7. After the furnace lining body 5 is introduced from the top of the furnace body 3, its own weight will overcome the elastic force of the reset spring 10 and compress it. Then, the furnace lining body 5 and the lifting disc 6 slide down to the bottom. At this time, the limiting grooves 8 on both sides of the transmission component 7 meet the two angled inserts 20. At this time, the damping spring set between the limiting frame 17 and the connecting arm 18 pops out and drives the angled inserts 20 to be inserted into the limiting grooves 8.

[0035] As a further embodiment of this utility model, the sliding separation mechanism includes a sliding plate 15 fixed to the top of the internal thread moving block 14 and two inclined pressing blocks 16 symmetrically arranged on the top of the sliding plate 15.

[0036] In this embodiment, the top of the internal thread moving block 14 is connected to two connecting rods, which are connected to the bottom of the sliding plate 15. The sliding plate 15 slides below the limiting groove 8.

[0037] As a further embodiment of this utility model, the sliding separation mechanism also includes two angled inserts 20 respectively fixed to one end of the two connecting arms 18. The two angled inserts 20 are slidably engaged with the limiting grooves 8 on both sides of the transmission component 7. The sliding plate 15 slides on the limiting grooves 8, and the two angled pressing blocks 16 are respectively pressed into the two angled inserts 20.

[0038] In this embodiment, when the furnace lining body 5 needs to be disassembled, the drive motor 12 is started. At this time, the output shaft of the drive motor 12 is linked to the worm gear mechanism inside the worm gear lifting platform 11, which drives the adjusting screw 13 to rotate. At the same time, it drives the internal thread moving block 14 to lift at a constant speed. During the lifting process, the two inclined pressing blocks 16 push the two inclined insert blocks 20 to one side, so that the two inclined insert blocks 20 move out of the limiting groove 8 and compress the damping spring set between the limiting frame 17 and the connecting arm 18, thereby pushing the locking protrusions 19 on both sides to expand outward synchronously to release the lock. At the same time, the furnace lining body 5 is smoothly pushed out, thereby realizing the full automation of the furnace lining installation, fixing and disassembly process.

[0039] The above embodiments are exemplary and not restrictive. Therefore, without departing from the spirit or basic characteristics of this utility model, any technical solutions that can be implemented in other specific forms are included in this utility model.

Claims

1. A quick-assembly and disassembly furnace lining structure for a medium-frequency furnace, comprising a support (1), a furnace cover (2), and a furnace body (3), characterized in that, The furnace body (3) has sliding cavities (4) on the inner walls on both sides and a furnace lining body (5) inside the furnace body (3). Both the furnace body (3) and the furnace lining body (5) are elliptical in shape. The furnace lining body (5) has slots on both sides. The bottom of the furnace body (3) is slidably installed with a lifting disc (6) and a transmission component (7) installed at the bottom of the lifting disc (6). The two ends of the transmission component (7) have limit slots (8). The bottom of the furnace body (3) is provided with a limit chamber (9) and a screw lifting mechanism at the bottom of the limit chamber (9). The bottom of the furnace body (3) is provided with a fixing and locking mechanism for limiting the furnace lining body (5) and a sliding separation mechanism that is squeezed into the fixing and locking mechanism.

2. The quick-assembly and disassembly furnace lining structure for a medium-frequency furnace according to claim 1, characterized in that, The screw lifting mechanism includes a worm gear screw lifting platform (11) located at the bottom of the limiting chamber (9) and a drive motor (12) located on one side of the worm gear screw lifting platform (11). An adjusting screw (13) and an internal thread moving block (14) threaded onto the adjusting screw (13) are provided above the worm gear screw lifting platform (11).

3. The quick-assembly and disassembly furnace lining structure for a medium-frequency furnace according to claim 2, characterized in that, The fixing and locking mechanism includes two limiting frames (17) fixed at the bottom of the limiting chamber (9) and a connecting arm (18) slidably mounted on the limiting frame (17). The two connecting arms (18) are symmetrically designed.

4. The quick-assembly and disassembly furnace lining structure for a medium-frequency furnace according to claim 3, characterized in that, The fixing and locking mechanism also includes a locking protrusion (19) connected to one end of the connecting arm (18). The two locking protrusions (19) are slidably mounted on the two sliding cavities (4) respectively, and the two locking protrusions (19) are respectively located on both sides of the furnace lining body (5).

5. The quick-assembly and disassembly furnace lining structure for a medium-frequency furnace according to claim 4, characterized in that, The top of the limiting chamber (9) is provided with two return springs (10), the transmission component (7) slides inside the limiting chamber (9), and the upper ends of the two return springs (10) are connected to the transmission component (7).

6. The quick-assembly and disassembly furnace lining structure for a medium-frequency furnace according to claim 5, characterized in that, The sliding separation mechanism includes a sliding plate (15) fixed on the top of the internal thread moving block (14) and two inclined extrusion blocks (16) symmetrically arranged on the top of the sliding plate (15).

7. The quick-assembly and disassembly furnace lining structure for a medium-frequency furnace according to claim 6, characterized in that, The sliding separation mechanism also includes two beveled inserts (20) fixed at one end of the two connecting arms (18), the two beveled inserts (20) slidingly engaging with the limiting grooves (8) on both sides of the transmission component (7), the sliding plate (15) sliding on the limiting grooves (8), and the two beveled pressing blocks (16) pressingly engaging with the two beveled inserts (20) respectively.

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