High-temperature resistance furnace

Abstract

The high-temperature resistance box comprises a box body, a transmission assembly and a furnace door, the furnace door is connected to the side wall of the box body, the interior of the box body is divided into an upper cavity and a lower cavity through a partition plate, the upper cavity is a transmission cavity, the lower cavity is a heating cavity, the partition plate is provided with a through sliding groove, and heating pipes are arranged on the inner wall of the heating cavity. The multiple heating pipes are connected with an external power source, the transmission assembly comprises a transmission box, multiple rotating rods, multiple driving gears and driven gears, the transmission box is connected to the inner bottom of the transmission cavity and connected with a moving assembly, the multiple driving gears are connected to the inner bottom of the transmission box, and center shafts of the driving gears are connected with an output shaft of a motor; the motor is connected to the top in the transmission box, the multiple driving gears are engaged with multiple driven gears correspondingly, the centers of the driven gears are hollowed out, the multiple rotating rods sequentially penetrate through the transmission box from top to bottom, the hollowed-out positions of the multiple driven gears and the sliding grooves are located in the heating cavity, the rotating rods are connected with the driven gears, and the bottoms of the rotating rods are connected with grabbing clamps.

Description

Technical Field

[0001] The utility model relates to the technical field of resistance furnaces, in particular to a high-temperature resistance furnace. Background Art

[0002] Resistance furnace is a general heating equipment, mainly used for ash content experiment, coalification experiment, steel quenching, metal heat treatment, component sintering, annealing and heat preservation, high temperature treatment of building materials, refractory materials, high temperature heat treatment of zirconia, high temperature frit of glass, drying in food laboratory, ashing of plastic in chemical laboratory, etc. In the experiment of measuring dust in workplace air, if the dust sample contains coal, other carbon and organic matter, it should be placed in a porcelain crucible or platinum crucible and ashed at 800℃-900℃ for more than 30 minutes to completely ashed the carbon and organic matter. In this step, since the sample sampling amount is about 0.1g, if the measurement step produces an error that changes the mass of the dust sample, the content of free silica in the dust obtained will also change, further affecting the measurement results.

[0003] For example, the prior art patent with announcement number "CN 214792551 U" discloses a high-temperature box-type resistance furnace, in which a tray is slidably connected to the box, the tray slides along the opening direction of the box, a rack is provided on the lower surface of the tray, a gear meshing with the tray is provided in the box, the gear is connected to a rotating shaft, and after heating is completed, the rotating shaft is rotated to make the tray slide out of the box, which is convenient for manual removal of materials. Another example is the patent with announcement number "CN 219199997 U" discloses a high-temperature box-type resistance furnace, which sends objects into the heating chamber or takes objects out of the heating chamber by sliding a slide plate, and at the same time, the limit rod can indicate the maximum diameter of the clamped object to avoid the heated object from colliding with the resistance wire heating tube when taking and placing, thereby improving the protection of the resistance wire heating tube. In the first patent mentioned above, the material is placed on a tray, and the tray is prone to pause during the process of moving back and forth, causing the material to vibrate and easily cause the material to tilt or spill. The second patent uses a sliding slide to take out the sample, which requires external force. Since the sample shape cannot be observed when pulling it out, the amount of force cannot be determined. If too much force is used, the sample in the fixed crucible will shake, which may easily cause the quality of the sample to change. Utility Model Content

[0004] The utility model aims to provide a high-temperature resistance furnace to solve the problem that sample quality changes are easily caused when transferring samples.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a high-temperature resistance furnace, comprising a box body, a transmission assembly and a furnace door, the furnace door is connected to the side wall of the box body, the box body is divided into two upper and lower cavities by a partition, the upper one is a transmission chamber, and the lower one is a heating chamber, the partition is provided with a through slide, the inner wall of the heating chamber is provided with a heating tube, and multiple heating tubes are connected to an external power supply, and the inner wall of the transmission chamber is provided with a moving assembly, the transmission assembly comprises a transmission box, multiple rotating rods, multiple driving gears and driven gears, the transmission box is connected to the bottom of the transmission chamber, the transmission box is connected to the moving assembly, the multiple driving gears are connected to the bottom of the transmission box, the central axis of the driving gear is connected to the output shaft of the motor, the motor is connected to the top of the transmission box, the multiple driving gears are respectively meshed with multiple driven gears, the center of the driven gear is hollowed out, the multiple rotating rods pass through the transmission box from top to bottom, the hollow parts of the multiple driven gears and the slide are located in the heating chamber, the rotating rod is connected to the driven gear, and the bottom of the rotating rod is connected with a grabbing clamp.

[0006] The working principle of the utility model is as follows: the furnace door is opened and the hydraulic cylinder is started. At this time, the telescopic end of the hydraulic cylinder drives the transmission box to move outward, and at this time, multiple rotating rods extend outward, and multiple motors are started, so that multiple driving gears move in the opposite direction, so that multiple rotating rods operate in the opposite direction, and the grasping clamp is opened. When the grasping clamp is opened to a suitable position, the multiple motors are closed. At this time, the crucible containing the sample is placed on the grasping clamp, and the hydraulic cylinder is started. The transmission box moves in the opposite direction and drives the rotating rod to return to the heating chamber. The hydraulic cylinder is closed, and the external power supply is started. At this time, multiple heating tubes begin to heat the sample. After the heating is completed, the hydraulic cylinder is started, and the rotating rod drives the grasping clamp to extend out of the box body to remove the crucible.

[0007] The utility model has the following beneficial effects: the hydraulic cylinder and gear transmission are adopted to ensure that the crucible can be transported stably; the gear transmission enables the gripping clamp to be fixed and the crucible can be limited on the gripping clamp; the mechanical transmission ensures that the crucible is subjected to balanced force during the process of entering and exiting the box.

[0008] Furthermore, a plurality of limit blocks are arranged around the hollowed-out portion of the driven gear, a groove corresponding to the limit blocks is arranged on the side wall of the rotating rod, and a lift is arranged on the inner top of the transmission box, and the lift is connected to the rotating rod. Through the arrangement of the limit blocks, the rotating rod and the driving gear rotate synchronously, and the arrangement of the lift can drive the rotating rod to move up and down, so as to change the heating position according to different heating samples.

[0009] Further, the moving assembly is a hydraulic cylinder, and the telescopic end of the hydraulic cylinder is connected to the transmission box. Through the arrangement of the hydraulic cylinder, the transmission box can move in the transmission cavity.

[0010] Furthermore, the inner bottom of the heating chamber is connected with a rack. Through the arrangement of the rack, when other samples need to be heated, different containers can be placed on the rack.

[0011] Furthermore, the top of the rack is in a grid shape, so that the heating container can be heated evenly.

[0012] Furthermore, there are multiple gripping clips, and the gripping clips are detachably connected to the rotating rod. Through the detachable connection, the gripping clips suitable for the size of the heating container can be replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a structural schematic diagram of a high temperature resistance furnace of the utility model;

[0014] Figure 2 for Figure 1 A top sectional view of the middle transmission case;

[0015] Figure 3 for Figure 1 Schematic diagram of the structure of the middle gripper. DETAILED DESCRIPTION

[0016] The following is further described in detail through specific implementation methods:

[0017] The figure marks in the drawings of the specification include: box body 1, transmission box 2, elevator 3, transmission assembly 4, motor 401, driving gear 402, driven gear 403, limit block 404, partition 5, hydraulic cylinder 6, heating tube 7, rotating rod 8, grab clamp 9, storage rack 10.

[0018] The embodiment is basically as shown in the attached Figure 1-Figure 3As shown: a high-temperature resistance box, including a box body 1, a transmission assembly 4 and a furnace door, the furnace door is rotatably connected to the side wall of the box body 1, the box body 1 is divided into two upper and lower cavities by a partition 5, the upper one is a transmission cavity, and the lower one is a heating cavity, the partition 5 is fixedly connected to the box body 1, the partition 5 is provided with a through slide, the inner wall of the heating cavity is provided with a heating tube 7, the heating tube 7 is connected to an external power supply, the inner bottom of the heating cavity is fixedly connected with a storage rack 10, the top of the storage rack 10 is a grid, the end of the transmission cavity close to the furnace door is fixedly connected with a hydraulic cylinder 6, the transmission assembly 4 includes a transmission box 2, a lift 3, two rotating rods 8, two driving gears 402 and a driven gear 403, the transmission box 2 is slidably connected to the inner bottom of the transmission cavity, the transmission box 2 is fixedly connected to the telescopic end of the hydraulic cylinder 6, and the two driving gears 402 are rotatably connected to the transmission box 2 The inner bottom of the transmission case 2, the central axis of the driving gear 402 is fixedly connected to the output shaft of the motor 401, the motor 401 is fixedly connected to the inner top of the transmission case 2, the two driving gears 402 are respectively meshed with two driven gears 403, the center of the driven gear 403 is hollowed out, and the hollowed out part of the driven gear 403 is surrounded by four limit blocks 404, the side wall of the rotating rod 8 is provided with a groove corresponding to the limit block 404, the rotating rod 8 is slidably connected to the driven gear 403, the rotating rod 8 is "L" shaped, the two rotating rods 8 respectively penetrate the transmission case 2 from top to bottom, the hollowed out parts of the two driven gears 403 and the slide groove are located in the heating chamber, the elevator 3 is fixedly connected to the inner top of the transmission case 2 and is located directly above the driven gear 403, the two rotating rods 8 are slidably connected to the elevator 3, and the horizontal end of the rotating rod 8 is detachably connected with a grab clamp 9.

[0019] The specific implementation process is as follows: open the furnace door and start the hydraulic cylinder 6. At this time, the telescopic end of the hydraulic cylinder 6 drives the transmission box 2 to move outward, and the two rotating rods 8 extend outward. The two motors 401 are started, so that the two driving gears 402 move in the opposite direction, so that the two driven gears 403 move in the opposite direction, and the rotating rod 8 synchronously operates in the opposite direction to open the grabbing clamp 9. When the grabbing clamp 9 is opened to a suitable position, the two motors 401 are turned off. At this time, the crucible containing the sample is placed on the grabbing clamp 9, and the hydraulic cylinder 6 is started. The transmission box 2 moves in the opposite direction to drive the rotating rod 8 back to the heating chamber. The hydraulic cylinder 6 is turned off and the external power supply is started. At this time, the heating tube 7 starts to heat the sample. After the heating is completed, the hydraulic cylinder 6 is started, and the rotating rod 8 drives the grabbing clamp 9 to extend out of the box body 1 to remove the crucible. When the shape of the heating container changes or the heating temperature is too high, the heating container can be placed on the storage rack 10 for heating by the grabbing clamp 9, or the heating container can be fixed by changing the shape of the grabbing clamp 9.

[0020] The above is only an embodiment of the utility model, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A high temperature resistance furnace, characterized in that: The invention comprises a box body, a transmission assembly and a furnace door, wherein the furnace door is connected to the side wall of the box body, and the box body is divided into two upper and lower cavities by a partition, the upper one is a transmission chamber, and the lower one is a heating chamber, the partition is provided with a through slide, the inner wall of the heating chamber is provided with a heating tube, and multiple heating tubes are connected to an external power supply, and the inner wall of the transmission chamber is provided with a moving assembly, the transmission assembly comprises a transmission box, multiple rotating rods, multiple driving gears and driven gears, the transmission box is connected to the bottom of the transmission chamber, the transmission box is connected to the moving assembly, multiple driving gears are connected to the bottom of the transmission box, the central axis of the driving gear is connected to the output shaft of the motor, the motor is connected to the top of the transmission box, the multiple driving gears are respectively meshed with multiple driven gears, the center of the driven gear is hollowed out, the multiple rotating rods pass through the transmission box from top to bottom in sequence, the hollow parts of the multiple driven gears and the slide are located in the heating chamber, the rotating rod is connected to the driven gear, and the bottom of the rotating rod is connected with a grabbing clamp.

2. A high temperature resistance furnace according to claim 1, characterized in that: The moving component is a hydraulic cylinder, and the telescopic end of the hydraulic cylinder is connected to the transmission box.

3. A high temperature resistance furnace according to claim 2, characterized in that: The inner bottom of the heating chamber is connected with a storage rack.

4. A high temperature resistance furnace according to claim 3, characterized in that: The top of the storage rack is in a grid shape.

5. A high temperature resistance furnace according to claim 4, characterized in that: There are multiple gripping clips, and the gripping clips are detachably connected to the rotating rod.

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