A high-temperature experimental box-type resistance furnace

Abstract

The utility model relates to resistance furnace technical field especially is a high temperature experiment box type resistance furnace, including the base, be provided with resistance furnace body on the base and be used for the heat treatment to material, and resistance furnace body includes: main component, including the furnace body fixed in the top of base, is provided with hearth in the furnace body inside, is provided with the furnace door in the front of furnace body, open and close subassembly, including the guide plate of the upper and lower both ends fixed in the left side front of hearth inner wall, is seted up in the left side inside guide plate and has the guide straight groove, is seted up in the right side inside guide plate and has the guide arc groove, and the rear end of guide arc groove and guide straight groove middle position are linked together, and the rear end right side between upper and lower two guide plates rotatory mounting has the main rod, and the upper and lower both ends of main rod all are fixed with first connecting rod, through servo motor drive connecting rod mechanism, cooperate the movement in special groove rail of guide wheel, make the furnace door realize the composite action of first translation disengagement, after arc line open and close, effectively avoid sealing strip wear and tear and ensure vertical compression seal.

Description

Technical Field

[0001] This utility model relates to the field of resistance furnace technology, specifically a high-temperature experimental box-type resistance furnace. Background Technology

[0002] High-temperature experimental box-type resistance furnaces are indispensable key heat treatment equipment in the field of modern materials science and engineering technology. Through precisely designed electric heating elements, electrical energy is converted into stable and controllable heat energy, creating a high-temperature environment in a sealed, insulated cavity, providing ideal conditions for the heat treatment of various solid materials. According to CN220670169U, a fully automatic high-temperature box-type resistance furnace is disclosed. This technology discloses a technical solution including: a high-temperature chamber, a support, a turntable, a slide block, a float plate, a reduction gearbox, a drive shaft, and a first silicon molybdenum rod. The slide block is slidably disposed in the high-temperature chamber, the turntable is rotatably disposed on the slide block, the support is disposed below the high-temperature chamber, the float plate is vertically disposed in the support, the reduction gearbox is disposed on the float plate, the drive shaft is disposed on the top output shaft of the reduction gearbox and extends upward into the high-temperature chamber, the bottom of the turntable is provided with a plug-in sleeve extending downward to the bottom of the slide block and corresponding to the drive shaft, the high-temperature chamber is provided with a first junction box, and the first silicon molybdenum rod is disposed at the bottom of the first junction box and extends downward into the high-temperature chamber. This technology has the technical effect of "positioning and rotating the turntable by inserting the drive shaft into the plug-in sleeve, realizing the rotational heating of the workpiece, and improving the heating uniformity and efficiency." In the above scheme, the furnace door is opened and closed by a simple hinge rotation method. This causes continuous friction and shearing between the sealing strip fixed at the edge of the furnace door and the front face of the furnace body at the moment of opening and closing. Due to the large weight of the furnace door and its simple movement trajectory, the sealing strip will gradually wear down, age, or even tear locally under repeated scraping, thereby reducing its elastic recovery ability and affecting the sealing effect. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a high-temperature experimental box-type resistance furnace. Through a servo motor driving a linkage mechanism, and in conjunction with the movement of guide wheels in a special groove, the furnace door achieves a compound action of first sliding out and then opening and closing in an arc, effectively avoiding wear of the sealing strip and ensuring vertical compression sealing.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a high-temperature experimental box-type resistance furnace, comprising a base, wherein a resistance furnace body is mounted on the base and used for heat treatment of materials, the resistance furnace body comprising: The main components include a furnace body fixed to the top of the base, a furnace chamber inside the furnace body, and a furnace door at the front of the furnace body; The opening and closing assembly includes guide plates fixed at the upper and lower ends on the front left side of the inner wall of the furnace. A guide straight groove is opened on the left side of the guide plate, and a guide arc groove is opened on the right side of the guide plate. The rear end of the guide arc groove is connected to the middle position of the guide straight groove. A main rod is rotatably installed between the rear right ends of the upper and lower guide plates. A first connecting rod is fixed at both the upper and lower ends of the main rod. A second connecting rod is pivotally connected to the other end of the first connecting rod. A support frame is pivotally connected to the other end of the second connecting rod. The support frame is fixedly connected to the left side of the inner wall of the furnace door. A first guide wheel is rotatably installed on the support frame and located in the guide straight groove. A second guide wheel is rotatably installed at the pivot point between the support frame and the second connecting rod and located in the guide straight groove. A servo motor is installed on the top of the furnace body to drive the main rod to rotate.

[0005] Preferably, the opening and closing assembly further includes a secondary rod fixed between the upper and lower second connecting rods, and the secondary rod is fixed at the pivot point between the second connecting rod and the support frame.

[0006] Preferably, the opening and closing assembly further includes reinforcing ribs fixed to the common vertical surface of the support frame.

[0007] Preferably, the opening and closing assembly further includes mounting holes on the front and rear sides inside the guide plate, and the guide plate is fixed to the inner wall of the furnace through the mounting holes and bolts.

[0008] Preferably, the main component further includes a sealing strip fixed to the inner wall edge of the furnace door and adapted to the front profile of the furnace chamber.

[0009] Preferably, the main component further includes a heating element installed inside the furnace body, and a door lock is installed on the right side of the front end of the furnace body.

[0010] Beneficial effects This invention provides a high-temperature experimental box-type resistance furnace. Compared with the prior art, it has the following advantages: 1. When the furnace door is opened, it must first move forward under the constraint of the guide straight groove to completely disengage the sealed furnace door from the front face of the furnace body. Then, it slides outward and laterally along the trajectory of the guide arc groove to open. The closing process is completely the opposite. The furnace door first moves along the arc to the closed position and finally presses inward in the straight groove section. This avoids the scratching and wear of the sealing strip caused by the furnace door at the moment of opening and closing. In addition, it makes the furnace door press against the furnace body in a nearly vertical direction when closed, thereby forming a uniform and highly sealed contact.

[0011] 2. When the furnace door is subjected to inertial force and its own weight during movement, the load will be concentrated on the support frame. The reinforcing ribs can effectively disperse these stresses and avoid bending or torsional deformation that is prone to occur. When the opening and closing components drive the furnace door to close and complete the pressing, the sealing strip will produce controllable elastic deformation under the continuous positive pressure of the furnace door, thereby tightly filling all possible gaps between the furnace door and the front face of the furnace chamber. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the furnace door when it is opened in this utility model; Figure 3 This is a schematic diagram of the furnace door when it is closed in this utility model; Figure 4 This utility model Figure 3 A schematic diagram of the structure of part A in the middle; Figure 5 This utility model Figure 3 Schematic diagram of the B structure in the middle section.

[0013] In the diagram: 1. Base; 2. Resistance furnace body; 21. Main component; 211. Furnace body; 212. Furnace chamber; 213. Furnace door; 214. Sealing strip; 215. Heating element; 216. Door lock; 22. Opening and closing assembly; 221. Guide plate; 222. Guide straight groove; 223. Guide arc groove; 224. Main rod; 225. First connecting rod; 226. Second connecting rod; 227. Support frame; 228. First guide wheel; 229. Second guide wheel; 2210. Servo motor; 2211. Sub-rod; 2212. Reinforcing rib; 2213. Mounting hole. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0015] Please see Figure 1 - Figure 5 This utility model provides a technical solution: a high-temperature experimental box-type resistance furnace, including a base 1, characterized in that: a resistance furnace body 2 is provided on the base 1 for heat treatment of materials, and the resistance furnace body 2 includes: The main component 21 includes a furnace body 211 fixed to the top of the base 1, a furnace chamber 212 inside the furnace body 211, and a furnace door 213 in front of the furnace body 211. The opening and closing assembly 22 includes guide plates 221 fixed at the upper and lower ends on the front left side of the inner wall of the furnace 212. A guide straight groove 222 is formed on the left side of the guide plate 221, and a guide arc groove 223 is formed on the right side of the guide plate 221. The rear end of the guide arc groove 223 is connected to the middle position of the guide straight groove 222. A main rod 224 is rotatably mounted between the right rear ends of the upper and lower guide plates 221. First connecting rods 225 are fixed at both the upper and lower ends of the main rod 224. The other end is pivotally connected to a second connecting rod 226, and the other end of the second connecting rod 226 is pivotally connected to a support frame 227. The support frame 227 is fixedly connected to the left side of the inner wall of the furnace door 213. A first guide wheel 228 is rotatably mounted on the support frame 227 and located in the guide groove 222. A second guide wheel 229 is rotatably mounted at the pivot point between the support frame 227 and the second connecting rod 226 and located in the guide groove 222. A servo motor 2210 is mounted on the top of the furnace body 211 and is used to drive the main rod 224 to rotate.

[0016] In this embodiment, the main rod 224 is driven to rotate by the output of the servo motor 2210. The power is transmitted from the main rod 224 to the support frame 227 fixed to the furnace door 213 via the first connecting rod 225 and the second connecting rod 226. At the same time, the first guide wheel 228 and the second guide wheel 229 installed on the support frame 227 are forced to roll in the guide straight groove 222 and the guide arc groove 223 of the guide plate 221. This ensures that when the furnace door 213 is opened, it must first move forward under the constraint of the guide straight groove 222. The door is moved horizontally so that the sealed furnace door 213 completely disengages from the front end face of the furnace body 211, and then slides outward and laterally along the trajectory of the guide arc groove 223 to open. The closing process is completely the opposite. The furnace door 213 first moves along the arc to the closed position, and finally presses inward in the straight groove section. This avoids the scratching and wear of the sealing strip 214 by the furnace door 213 at the moment of opening and closing. In addition, it makes the furnace door 213 press against the furnace body 211 in a nearly vertical direction when closed, thereby forming a uniform and highly sealed contact.

[0017] Specifically, the opening and closing assembly 22 also includes a secondary rod 2211 fixed between the upper and lower second connecting rods 226, and the secondary rod 2211 is fixed at the pivot point between the second connecting rod 226 and the support frame 227.

[0018] In this embodiment, when the driving device 2110 drives the main rod 224 to rotate, the force will be transmitted to the second connecting rods 226 on both sides through the first connecting rod 225. The presence of the auxiliary rod 2211 forces the pivot points of the upper and lower second connecting rods 226 to achieve completely synchronized displacement and rotation, thereby eliminating the asymmetrical movement that may be caused by manufacturing tolerances or uneven force.

[0019] Specifically, the opening and closing assembly 22 also includes a reinforcing rib 2212 fixed to the common vertical surface of the support frame 227.

[0020] In this embodiment, when the furnace door 213 is subjected to inertial force and its own weight during movement, the load will be concentrated on the support frame 227. The reinforcing ribs 2212 can effectively disperse these stresses and avoid bending or torsional deformation that is prone to occur.

[0021] Specifically, the opening and closing assembly 22 also includes mounting holes 2213 on the front and rear sides inside the guide plate 221, and the guide plate 221 is fixed to the inner wall of the furnace 212 through the mounting holes 2213 and bolts.

[0022] Specifically, the main component 21 also includes a sealing strip 214 fixed to the inner wall edge of the furnace door 213 and adapted to the front profile of the furnace chamber 212.

[0023] In this embodiment, when the opening and closing component 22 drives the furnace door 213 to close and completes the pressing, the sealing strip 214 generates controllable elastic deformation under the continuous positive pressure of the furnace door 213, thereby tightly filling all possible gaps between the furnace door 213 and the front end face of the furnace chamber 212.

[0024] Specifically, the main component 21 also includes a heating element 215 installed inside the furnace body 211, and a door lock 216 is installed on the right side of the front end of the furnace body 211.

[0025] In this embodiment, the heating element 215 serves as the heat source of the system. After being powered on, it directly converts electrical energy into heat energy and provides a continuous and controllable high-temperature environment for the sealed furnace 212 through convection and radiation, thereby achieving heat treatment of the material. When the furnace door 213 is closed, an additional locking force is applied by the door lock 216.

[0026] The working principle and usage process of this utility model are as follows: First, the main rod 224 is driven to rotate by the output end of the servo motor 2210. The power is transmitted through the main rod 224 to the support frame 227 fixed to the furnace door 213 via the first connecting rod 225 and the second connecting rod 226. At the same time, the first guide wheel 228 and the second guide wheel 229 installed on the support frame 227 are forced to roll in the guide straight groove 222 and the guide arc groove 223 of the guide plate 221. This ensures that when the furnace door 213 is opened, it must first roll in the guide straight groove 222. Under the constraint of the seal, the door moves forward, completely disengaging from the front end of the furnace body 211. Then, it slides outward and laterally along the trajectory of the guide arc groove 223 to open. The closing process is completely the opposite. The door 213 first moves along the arc to the closed position and finally presses inward in the straight groove section. This avoids the scratching and wear of the sealing strip 214 by the door 213 during opening and closing. Furthermore, it ensures that the door 213 presses against the furnace body 211 in a nearly vertical direction when closed, thus forming a uniform and highly sealed contact.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] 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 high-temperature experimental box-type resistance furnace, comprising a base (1), characterized in that: The base (1) is provided with a resistance furnace body (2) for heat treatment of materials. The resistance furnace body (2) includes: The main component (21) includes a furnace body (211) fixed to the top of the base (1), a furnace chamber (212) is provided inside the furnace body (211), and a furnace door (213) is provided in front of the furnace body (211). The opening and closing assembly (22) includes guide plates (221) fixed at the upper and lower ends on the left front side of the inner wall of the furnace (212). A guide straight groove (222) is provided on the left side inside the guide plate (221), and a guide arc groove (223) is provided on the right side inside the guide plate (221). The rear end of the guide arc groove (223) is connected to the middle position of the guide straight groove (222). A main rod (224) is rotatably installed between the right rear ends of the upper and lower guide plates (221). A first connecting rod (225) is fixed at both the upper and lower ends of the main rod (224). The other end of the first connecting rod (225) is... One end is pivotally connected to a second connecting rod (226), and the other end of the second connecting rod (226) is pivotally connected to a support frame (227). The support frame (227) is fixedly connected to the left side of the inner wall of the furnace door (213). A first guide wheel (228) is rotatably mounted on the support frame (227) and located in the guide groove (222). A second guide wheel (229) is rotatably mounted at the pivot point between the support frame (227) and the second connecting rod (226) and located in the guide groove (222). A servo motor (2210) is mounted on the top of the furnace body (211) and is used to drive the main rod (224) to rotate.

2. The high-temperature experimental box-type resistance furnace according to claim 1, characterized in that: The opening and closing assembly (22) also includes a secondary rod (2211) fixed between the upper and lower second connecting rods (226), and the secondary rod (2211) is fixed at the pivot point between the second connecting rod (226) and the support frame (227).

3. The high-temperature experimental box-type resistance furnace according to claim 1, characterized in that: The opening and closing assembly (22) also includes a reinforcing rib (2212) fixed to the common vertical surface of the support frame (227).

4. A high-temperature experimental box-type resistance furnace according to claim 1, characterized in that: The opening and closing assembly (22) also includes mounting holes (2213) on the front and rear sides inside the guide plate (221), and the guide plate (221) is fixed to the inner wall of the furnace (212) by bolts through the mounting holes (2213).

5. A high-temperature experimental box-type resistance furnace according to claim 1, characterized in that: The main component (21) also includes a sealing strip (214) fixed to the inner wall edge of the furnace door (213) and adapted to the front profile of the furnace chamber (212).

6. A high-temperature experimental box-type resistance furnace according to claim 1, characterized in that: The main component (21) also includes a heating element (215) installed inside the furnace body (211), and a door lock (216) is installed on the right side of the front end of the furnace body (211).

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