An expandable crucible-fixed resistance furnace

Abstract

This utility model belongs to the field of resistance furnace technology, and in particular to an expandable crucible-fixed resistance furnace, including a base plate. The resistance furnace is mounted on one side of the base plate surface, and a support block is connected to one end of the base plate surface. A deep V-shaped slide rail is connected to one side of the support block surface, and the other end of the deep V-shaped slide rail is embedded in the bottom of the resistance furnace. A lower base plate is fixedly connected to one end of the support block surface, and an upper base plate is movably connected to the surface of the lower base plate. Through the cooperation of the trolley, the deep V-shaped slide rail, ceramic clamps, the upper base plate, and the lower base plate, the risk of clamp slippage is eliminated. The deep V-shaped slide rail allows operators to work at a greater distance from the high-temperature furnace, increasing the distance between the operator and the heat source in the furnace, significantly reducing the impact of heat radiation on the operator. The two sets of ceramic clamps can restrict the position of the crucible, ensuring that the crucible's position does not shift when the trolley is pushed in or pulled out, reducing safety hazards.

Description

Technical Field

[0001] This utility model belongs to the field of resistance furnace technology, specifically relating to an expandable crucible-fixed resistance furnace. Background Technology

[0002] An electric resistance furnace is an industrial furnace that uses electric current to heat heating elements or a heating medium inside the furnace, thereby heating workpieces or materials. It is a heating furnace that utilizes the heat energy generated by the passage of electric current through a resistive material. In the machinery industry, electric resistance furnaces are used for heating metals before forging, heating metals during heat treatment, brazing, powder metallurgy sintering, glass and ceramic calcination and annealing, melting low-melting-point metals, and drying sand molds and paint films. They are widely used in production and experimentation in fields such as ceramics, metallurgy, electronics, glass, chemicals, machinery, refractory materials, new material development, special materials, and building materials.

[0003] The temperature inside the resistance furnace is extremely high. The required temperature for the loss on ignition test is 950℃±25℃. Even with heat-resistant gloves and long pliers, there is still a risk of burns when operating at such a high temperature. In addition, the test personnel face the high-temperature furnace and are exposed to a lot of heat radiation. There is no restriction on the position of the crucible, which will be unstable when pushed in or pulled out, posing a high safety hazard. Utility Model Content

[0004] To address the problems mentioned in the background art, this utility model provides an expandable crucible-fixed resistance furnace, which solves the problems of burn risk for operators at high temperatures, the large amount of heat radiation borne by test personnel facing the high-temperature furnace, and the lack of restrictions on the position of the crucible.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an expandable crucible-fixed resistance furnace, comprising a base plate, a resistance furnace disposed on one side of the base plate surface, a support block connected to one end of the base plate surface, a deep V-shaped slide rail connected to one side of the support block surface, and the other end of the deep V-shaped slide rail embedded in the bottom of the resistance furnace, a lower base plate fixedly connected to one end of the support block surface, an upper base plate movably connected to the surface of the lower base plate, a limiting groove formed inside the upper base plate, a movable block slidably connected to the inner surface of the limiting groove, a ceramic clamp connected to one side of the top of the movable block, two sets of ceramic clamps, and corresponding installation between the two sets of ceramic clamps, ceramic guide rails connected to both sides of the inner surface of the resistance furnace, a trolley disposed inside the resistance furnace, a sliding groove formed on both sides of the trolley surface, and the surface of the sliding groove slidably connected to the surface of the ceramic guide rail, a crucible disposed on the surface of the upper base plate, and the surface of the crucible contacting the surface of the ceramic clamp.

[0006] Preferably, a sliding door is slidably connected to one side of the surface of the resistance furnace, and an L-shaped connecting platform is fixedly connected to one side of the top of the sliding door. An electro-hydraulic push rod is provided on one side of the surface of the resistance furnace, and the other end of the electro-hydraulic push rod is connected to one side of the top of the L-shaped connecting platform.

[0007] Preferably, a first handle is fixedly connected to one side of the outer surface of the trolley, and mounting plates are fixedly connected to both sides of the lower surface of the trolley. A connecting shaft is connected inside the mounting plate, and wheels are connected to both ends of the connecting shaft, with the surface of the wheels in contact with the surface of the deep V-shaped slide rail.

[0008] Preferably, the surface of the lower substrate has multiple sets of first insertion holes, and one side of the lower surface of the upper substrate is fixedly connected to a post, and the surface of the post is movably connected to the inner surface of the first insertion hole.

[0009] Preferably, a second handle is fixedly connected to both sides of the surface of the upper substrate.

[0010] Preferably, both sides of the interior of the upper substrate are connected to slide rods, and the surface of the slide rods is slidably connected to the interior of the movable block.

[0011] Preferably, the upper substrate is provided with an elastic telescopic rod inside, and both ends of the elastic telescopic rod are connected to one side of the surface of the two sets of movable blocks.

[0012] Preferably, the surface of the trolley has multiple sets of second insertion holes, and the positions of the second insertion holes and the insertion posts correspond to each other.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] Through the cooperation of the trolley, deep V-shaped slide rail, ceramic clamps, upper base plate, and lower base plate, the double-layer base plate allows crucible loading to be completed in the room temperature range of the operating table. Mechanical positioning replaces manual clamping, eliminating the risk of pliers slipping out. The operator only needs to place the upper base plate on the surface of the trolley, and then push the trolley into the furnace and close the door. The deep V-shaped slide rail allows the operator to operate at a greater distance from the high-temperature furnace, increasing the distance between the human body and the heat source of the furnace, and greatly reducing the impact of heat radiation on the test personnel. The two sets of ceramic clamps can restrict the position of the crucible, ensuring that the position of the crucible will not shift when pushing in or pulling out the trolley, reducing safety hazards. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the resistance furnace of this utility model;

[0018] Figure 3 This is a cross-sectional view of the present invention;

[0019] Figure 4 This is a schematic diagram of the pulley of this utility model;

[0020] Figure 5 This is a cross-sectional view of the upper substrate of this utility model;

[0021] Figure 6 This is a schematic diagram of the upper substrate of this utility model.

[0022] In the diagram: 1. Base plate; 2. Resistance furnace; 3. L-shaped connecting platform; 4. Sliding door; 5. Crucible; 6. Upper base plate; 7. Lower base plate; 8. Deep V-shaped slide rail; 9. Electro-hydraulic push rod; 10. First insertion hole; 11. Support block; 12. Trolley; 13. Second insertion hole; 14. Ceramic guide rail; 15. Connecting shaft; 16. First handle; 17. Wheel; 18. Slide groove; 19. Mounting plate; 20. Second handle; 21. Ceramic clamp; 22. Limiting groove; 23. Slide rod; 24. Elastic telescopic rod; 25. Movable block; 26. Insertion column. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1-6This utility model provides the following technical solution: an expandable crucible-fixed resistance furnace, including a base plate 1, a resistance furnace 2 disposed on one side of the surface of the base plate 1, a support block 11 connected to one end of the surface of the base plate 1, a deep V-shaped slide rail 8 connected to one side of the surface of the support block 11, and the other end of the deep V-shaped slide rail 8 embedded in the bottom of the resistance furnace 2, a lower base plate 7 fixedly connected to one end of the surface of the support block 11, an upper base plate 6 movably connected to the surface of the lower base plate 7, a limiting groove 22 formed inside the upper base plate 6, and the inner surface of the limiting groove 22... A movable block 25 is slidably connected, and a ceramic clamp 21 is connected to one side of the top of the movable block 25. There are two sets of ceramic clamps 21, and the two sets of ceramic clamps 21 are installed correspondingly. Ceramic guide rails 14 are connected to both sides of the inner surface of the resistance furnace 2. A trolley 12 is provided inside the resistance furnace 2. Slide grooves 18 are opened on both sides of the surface of the trolley 12, and the surface of the slide grooves 18 is slidably connected to the surface of the ceramic guide rails 14. A crucible 5 is provided on the surface of the upper base plate 6, and the surface of the crucible 5 is in contact with the surface of the ceramic clamp 21.

[0025] In this embodiment, the deep V-shaped slide rail 8 extends 30 centimeters outside the furnace door, and works with the wheels 17 of the trolley 12 to increase the operating distance to a safe range, increase the distance between the human body and the heat source in the furnace, reduce the area of ​​heat radiation on the test personnel, and reduce safety hazards.

[0026] In this embodiment, the sliding door 4 is opened and closed up and down by the electric hydraulic push rod 9, which avoids human contact with the high temperature surface, better protects the test personnel, and reduces the risk of the test personnel being burned.

[0027] In this embodiment: the movable block 25 is driven by the elastic telescopic rod 24, so that the ceramic clamps 21 can adaptively clamp crucibles 5 of different sizes. At the same time, the ceramic clamps 21 can maintain their strength at high temperature, avoiding clamping failure caused by high temperature deformation of metal clamps.

[0028] In this embodiment, the upper substrate 6 and the trolley 12 are designed to be separate, which allows the test personnel to conduct multiple sets of control tests continuously, making the test results more accurate.

[0029] In this embodiment, the ceramic guide rail 14 and the slide groove 18 are slidably engaged to avoid the risk of the metal guide rail softening at high temperature, while also reducing the generation of frictional sparks.

[0030] The working principle and usage process of this utility model are as follows: After the utility model is installed, the cement and admixtures to be tested for loss on ignition are placed into the crucible 5. Then, the crucible 5 is placed on the surface of the upper substrate 6. During the placement of the crucible 5, the ceramic clamps 21 on both sides will move outward, thereby causing the movable block 25 to move vertically along the slide rod 23 under the restriction of the limiting groove 22. This pulls the elastic telescopic rod 24, causing it to be subjected to an outward expansion force. When the spring of the elastic telescopic rod 24 reaches the critical point, the elastic telescopic rod 24 will contract, thereby causing the movable blocks 24 to move closer together vertically along the slide rod 23 under the restriction of the limiting groove 22. This, in turn, causes the ceramic clamps 21 to move closer together. The position of the crucible 5 is restricted by the ceramic clamps 21 coming together and contacting the outer surface of the crucible 5. Then, the electric hydraulic push rod 9 is activated to push the L-shaped connecting platform 3 upward, thereby pushing the slide rod 4 upward. After the slide door 4 is raised, the trolley 12 is pulled out. The second handles 20 on both sides of the upper substrate 6 are held by both hands and lifted upward to pick up the upper substrate 6 and the crucible 5 together. Then, the insert 26 is aligned with the second insert hole 13 on the surface of the trolley 12 and the upper substrate 6 is placed on the surface of the trolley 12. The trolley 12 is pushed back into the interior of the resistance furnace 2. Then, the slide door 4 is closed by the electric hydraulic push rod 9. The resistance furnace 2 is then started to conduct the burn-off test. All electrical equipment in this device is powered by an external power source.

[0031] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the 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 this utility model should be included within the protection scope of this utility model.

Claims

1. An expandable crucible-fixed resistance furnace, comprising a base plate (1), characterized in that: A resistance furnace (2) is provided on one side of the surface of the base plate (1). A support block (11) is connected to one end of the surface of the base plate (1). A deep V-shaped slide rail (8) is connected to one side of the surface of the support block (11), and the other end of the deep V-shaped slide rail (8) is embedded in the bottom of the resistance furnace (2). A lower base plate (7) is fixedly connected to one end of the surface of the support block (11). An upper base plate (6) is movably connected to the surface of the lower base plate (7). A limiting groove (22) is opened inside the upper base plate (6). A movable block (25) is slidably connected to the inner surface of the limiting groove (22). 25) A ceramic clamp (21) is connected to one side of the top. There are two sets of ceramic clamps (21), and the two sets of ceramic clamps (21) are installed in correspondence. Ceramic guide rails (14) are connected to both sides of the inner surface of the resistance furnace (2). A trolley (12) is provided inside the resistance furnace (2). Slide grooves (18) are opened on both sides of the surface of the trolley (12), and the surface of the slide groove (18) is slidably connected to the surface of the ceramic guide rail (14). A crucible (5) is provided on the surface of the upper base plate (6), and the surface of the crucible (5) is in contact with the surface of the ceramic clamp (21).

2. The expandable crucible-fixed resistance furnace according to claim 1, characterized in that: A sliding door (4) is slidably connected to one side of the surface of the resistance furnace (2), and an L-shaped connecting platform (3) is fixedly connected to one side of the top of the sliding door (4). An electric hydraulic push rod (9) is provided on one side of the surface of the resistance furnace (2), and the other end of the electric hydraulic push rod (9) is connected to one side of the top of the L-shaped connecting platform (3).

3. The expandable crucible-fixed resistance furnace according to claim 1, characterized in that: A first handle (16) is fixedly connected to one side of the outer surface of the trolley (12), and mounting plates (19) are fixedly connected to both sides of the lower surface of the trolley (12). A connecting shaft (15) is connected inside the mounting plate (19), and wheels (17) are connected to both ends of the connecting shaft (15). The surface of the wheels (17) is in contact with the surface of the deep V-shaped slide rail (8).

4. The expandable crucible-fixed resistance furnace according to claim 1, characterized in that: The surface of the lower substrate (7) is provided with a plurality of first insertion holes (10), and a post (26) is fixedly connected to one side of the lower surface of the upper substrate (6), and the surface of the post (26) is movably connected to the inner surface of the first insertion hole (10).

5. The expandable crucible-fixed resistance furnace according to claim 1, characterized in that: A second handle (20) is fixedly connected to both sides of the surface of the upper substrate (6).

6. The expandable crucible-fixed resistance furnace according to claim 1, characterized in that: Both sides of the upper base plate (6) are connected to slide rods (23), and the surface of the slide rods (23) is slidably connected to the interior of the movable block (25).

7. The expandable crucible-fixed resistance furnace according to claim 1, characterized in that: The upper substrate (6) is provided with an elastic telescopic rod (24) inside, and both ends of the elastic telescopic rod (24) are connected to one side of the surface of the two sets of movable blocks (25).

8. The expandable crucible-fixed resistance furnace according to claim 1, characterized in that: The surface of the trolley (12) is provided with a plurality of second insertion holes (13), and the positions of the second insertion holes (13) and the insertion post (26) correspond to each other.

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