A cylindrical rotating charging chamber structure for a high temperature atmosphere furnace

Abstract

The utility model belongs to the technical field of high-temperature atmosphere furnaces, and particularly relates to a cylindrical rotating charging chamber structure of a high-temperature atmosphere furnace. It includes a charging chamber support, a charging chamber and a material tray, wherein two sets of charging chamber supports are arranged in parallel on the material tray, the charging chamber is placed on the two sets of charging chamber supports, and the axis of the charging chamber is parallel to the axis of the two sets of charging chamber supports, and the two sets of charging chamber supports perform rolling support when the charging chamber rotates. The utility model has a simple structure, is easy to manufacture, has low energy loss during rotation, has good high temperature resistance, and is stable while taking into account a steady and uniform speed. Its charging chamber takes into account sealing and air permeability while rotating and being evenly heated.

Description

Technical Field

[0001] The utility model belongs to the technical field of high-temperature atmosphere furnaces, and particularly relates to a cylindrical rotating charging chamber structure of a high-temperature atmosphere furnace. Background Art

[0002] At present, many products processed in high-temperature atmosphere furnaces require uniform heating on all sides. Traditional support methods can only provide fixed support. The bottom of the product is in contact with the material plate, and the degree of heating is significantly different from that in other directions, which leads to the internal structure being inconsistent when the product is formed, resulting in product defects or even failure. Traditional loading chambers are basically open, and do not support the rotation of products under the condition of filling with atmosphere without leakage, and cannot take into account both sealing and air permeability. It is necessary to find a suitable loading chamber and its stable support device, which has good support effect, strong high temperature resistance, and minimizes its energy loss during the rotation of the loading chamber to avoid higher requirements on power. The loading chamber must maintain good air permeability and take into account the sealing of the product under the condition of being able to rotate, to ensure that the product will not leak to the external space of the loading chamber during rotation. Utility Model Content

[0003] In view of the above problems, the purpose of the utility model is to provide a cylindrical rotating charging chamber structure for a high-temperature atmosphere furnace to overcome the problems of uneven heating of products processed in a high-temperature furnace and leakage of products due to rotation of the charging chamber.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The utility model provides a cylindrical rotating charging chamber structure of a high-temperature atmosphere furnace, comprising a charging chamber support, a charging chamber and a charging tray, wherein two sets of charging chamber supports are arranged in parallel on the charging tray, the charging chamber is placed on the two sets of charging chamber supports, and the axis of the charging chamber is parallel to the axis of the two sets of charging chamber supports, and the two sets of charging chamber supports perform rolling support when the charging chamber rotates.

[0006] The loading chamber includes a connecting shaft, a loading barrel, a partition, a blade assembly and a positioning ventilation plate assembly, wherein the loading barrel is a cylindrical structure with one end open, the connecting shaft is arranged at the closed end of the loading barrel, and the connecting shaft is provided with a central through hole, the blade assembly is arranged on the inner wall of the loading barrel close to the connecting shaft, the positioning ventilation plate assembly is arranged at the open end of the loading barrel, the positioning ventilation plate assembly prevents material from leaking to the outside of the loading barrel, and has a ventilation hole in the center; a plurality of partitions are arranged on the inner wall of the loading barrel at intervals along the circumferential direction, and each partition is arranged along the axial direction.

[0007] The blade assembly includes a plurality of fan blades arranged obliquely along the circumferential direction, and an overlapping portion is provided between two adjacent fan blades, so that the injected atmosphere can smoothly enter the charging barrel while preventing the material from leaking to the outside of the charging barrel.

[0008] The plurality of fan blades surround the outer side of the connecting shaft and are all welded to the connecting shaft.

[0009] The positioning vent plate assembly includes a positioning plate, a retaining ring, a baffle and a fixing part, wherein the positioning plate is an annular structure, the positioning plate is fixed on the inner wall of the charging barrel, the center of the baffle has a bell mouth that protrudes inward and gradually shrinks, and the bell mouth passes through the center holes of the retaining ring and the positioning plate in turn and is located on the inner side of the charging barrel, the two side surfaces of the retaining ring are respectively fitted with the positioning plate and the baffle, and the outer side of the baffle is limited by a fixing part connected to the charging barrel.

[0010] The fixing member is a molybdenum wire, which is located outside the baffle plate, and two ends of the molybdenum wire are respectively connected to the opposite sides of the charging barrel.

[0011] The loading chamber support includes a roller seat, a roller, a spacer sleeve and a rotating wheel, wherein the two ends of the roller are supported by two roller seats, the two roller seats are detachably connected to the material tray, and the roller is alternately provided with a spacer sleeve and a rotating wheel.

[0012] The roller seat is connected to the material tray through a positioning pin, the lower end of the positioning pin is interference fit with the fixed support hole on the material tray, and the upper end of the positioning pin is clearance fit with the positioning hole on the roller seat.

[0013] The roller seat, positioning pin, roller and spacer are all made of high-purity graphite.

[0014] The charging chamber is made of stainless steel.

[0015] The advantages and beneficial effects of the utility model are: the cylindrical rotating charging chamber structure of the high-temperature atmosphere furnace provided by the utility model is simple in structure, easy to install and disassemble, strong in supporting and high-temperature resistance, low in energy consumption during energy transfer, and the charging chamber takes into account both product sealing and air permeability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of a cylindrical rotating charging chamber structure of a high-temperature atmosphere furnace of the utility model;

[0017] Figure 2 This is a schematic diagram of the supporting structure of the charging chamber in the utility model;

[0018] Figure 3 It is a side view of the charging chamber in the utility model;

[0019] Figure 4 It is a welding schematic diagram of the fan blades of the charging chamber in the utility model.

[0020] In the figure: 1 is the roller seat, 2 is the positioning pin, 3 is the roller, 4 is the spacer, 5 is the rotating wheel, 6 is the loading chamber, 61 is the connecting shaft, 62 is the fan blade, 63 is the loading barrel, 64 is the partition, 65 is the positioning plate, 66 is the baffle ring, 67 is the baffle, 68 is the molybdenum wire, and 7 is the material tray. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] like Figure 1-4 As shown, the utility model provides a cylindrical rotating charging chamber structure of a high-temperature atmosphere furnace, comprising a charging chamber support, a charging chamber 6 and a material tray 7, wherein two sets of charging chamber supports are arranged in parallel on the material tray 7, the charging chamber 6 is placed on the two sets of charging chamber supports, and the axis of the charging chamber 6 is parallel to the axis of the two sets of charging chamber supports, and the two sets of charging chamber supports perform rolling support when the charging chamber 6 rotates.

[0023] like Figure 1 , Figure 2 As shown, in the embodiment of the utility model, the loading chamber support includes a roller seat 1, a roller 3, a spacer sleeve 4 and a rotating wheel 5, wherein both ends of the roller 3 are supported by two roller seats 1, the two roller seats 1 are detachably connected to the material tray 7, and the roller 3 is alternately provided with a spacer sleeve 4 and a rotating wheel 5.

[0024] Furthermore, the roller seat 1 is connected to the tray 7 in a positioning manner through the positioning pin 2. The lower end of the positioning pin 2 is interference fit with the fixed support hole on the tray 7, and the upper end of the positioning pin 2 is clearance fit with the positioning hole on the roller seat 1. Specifically, the positioning pin 2 is divided into an upper and lower cylinder, which are respectively connected to the tray 7 and the roller seat 1. The lower cylinder has a low height and a relatively large circumference, and is interference fit with the fixed support hole of the tray 7, ensuring the strength of the overall structure. The opening depth of the tray 7 is low, which ensures the strength of the tray 7. If the calculation allows, the requirements for the thickness of the tray 7 can be further reduced, further freeing up the space in the working area and reducing the production cost, making the equipment more reliable; the upper cylinder is relatively high in height, and is clearance fit with the roller seat 1, which facilitates the installation and disassembly of the roller seat 1.

[0025] In this embodiment, the spacer sleeve 4 and the rotating wheel 5 are alternately installed on the roller 3 in advance, and the two ends of the roller 3 are respectively inserted and fixed into the two-thirds circular holes opened on the side of the roller seat 1 to form a rotating part. The spacer sleeve 4 is placed between the rotating wheels 5 and between the rotating wheel 5 and the roller seat 1 to prevent the rotating wheels 5 from interfering with each other and affecting the smoothness of rotation, and to protect the roller seat 1 to prevent the rotating wheel 5 from damaging the roller seat 1. At the same time, gravity calculation is performed according to the product shape and weight in advance, and a fixed support hole is opened at the corresponding position of the material tray 7, and then the bottom cylinder of the positioning pin 2 is trimmed with sandpaper and inserted into the fixed support hole opened in the material tray 7. This is an interference fit, and attention should be paid to trimming the size to ensure a stable fit. Finally, the bottom positioning holes of the two roller seats 1 in the installed rotating part are aligned with the top cylinders of the positioning pin 2 and inserted respectively to form a support unit for installation. Repeat this process to install the support unit according to the pre-calculated required position, and arrange the longitudinal arrangement symmetrically to form a stable support foundation.

[0026] like Figure 3 As shown, in the embodiment of the utility model, the loading chamber 6 includes a connecting shaft 61, a loading barrel 63, a partition 64, a blade assembly and a positioning ventilation plate assembly, wherein the loading barrel 63 is a cylindrical structure with one end open, the connecting shaft 61 is arranged at the closed end of the loading barrel 63, and the connecting shaft 61 is provided with a central through hole, the blade assembly is arranged on the inner wall of the loading barrel 63 close to the connecting shaft 61, the positioning ventilation plate assembly is arranged at the open end of the loading barrel 63, the positioning ventilation plate assembly prevents the material from leaking to the outside of the loading barrel 63, and has a ventilation hole in the center; a plurality of partitions 64 are welded on the inner wall of the loading barrel 63 at intervals along the circumferential direction, and each partition 64 is arranged along the axial direction.

[0027] like Figure 3 , Figure 4 As shown, in the embodiment of the utility model, the blade assembly includes a plurality of fan blades 62 welded along the circumferential tilt, and there is an overlapping portion between two adjacent fan blades 62. The fan blades 62 are used to fix the central connecting shaft 61 and the loading chamber 63 to form a semi-closed structure, so that the injected atmosphere can smoothly enter the loading barrel 63, while preventing the material from leaking to the outside of the loading barrel 63.

[0028] like Figure 3 As shown, in the embodiment of the utility model, the positioning ventilation plate assembly includes a positioning plate 65, a retaining ring 66, a baffle 67 and a fixing part, wherein the positioning plate 65 is an annular structure, the positioning plate 65 is fixed on the inner wall of the loading barrel 63, the center of the baffle 67 has a bell mouth that protrudes inward and gradually shrinks, and the bell mouth passes through the center holes of the retaining ring 66 and the positioning plate 65 in turn and is located on the inner side of the loading barrel 63, the two side surfaces of the retaining ring 66 are respectively fitted with the positioning plate 65 and the baffle 67, and the outer side of the baffle 67 is limited by a fixing part connected to the loading barrel 63.

[0029] Specifically, the fixing member is a molybdenum wire 68, which is outside the baffle 67, and the two ends of the molybdenum wire 68 are respectively connected to the opposite sides of the charging barrel 63. The baffle ring 67 is tightly matched with the charging barrel 63 and is generally not disassembled. The baffle 67 and the charging barrel 63 are loosely matched, and a horn hole is hollowed out and welded in the middle. Through holes are symmetrically opened at appropriate positions of the charging barrel 63, and the molybdenum wire 38 is inserted into the through holes to fix the baffle 67.

[0030] In this embodiment, the charging chamber 6 is made of stainless steel to ensure that it does not deform in a high temperature environment. A through hole is provided on one side of the connecting shaft 61 for connecting with the transmission device, and the other side is welded to the charging barrel 63 through the fan blades 62. The fan blades 62 are distributed in the form of impeller blades, such as Figure 4 As shown, the fan blades 62 are welded at a certain angle, and each fan blade has a certain overlap at the head and tail, so that the product cannot escape from the charging chamber through the centrifugal force from this structure. The fan blades 62 are staggered, and gaps are formed between the fan blades 62 to ensure that the airflow flows into the charging barrel 63 along the gaps. The fan blades 62 are tilted, and centripetal force is also formed during rotation to push the airflow into the charging chamber 6. The partitions 64 are evenly distributed and welded on the inner wall of the charging barrel 63, and the product is fully stirred while the charging barrel 63 rotates to ensure uniform heating. The positioning plate 65 is welded to the sealing part on the other side of the inner wall of the charging barrel 63 to limit the baffle ring 66 and the baffle plate 67. The baffle ring 66 fits tightly with the charging barrel 63 to ensure that the product will not flow out through the gap, creating conditions for the clearance of the baffle plate 67. The outer diameter of the baffle plate 67 is larger than the inner diameter of the baffle ring 66 and smaller than the inner diameter of the charging barrel 63. Under the premise of ensuring the closed space of the charging barrel 63, it is easy to disassemble. The middle of the baffle plate 67 is hollowed out and welded with a trumpet mouth to ensure that the airflow flows smoothly from the charging chamber 6. Through holes are symmetrically opened on the inner wall of the charging barrel 63, and molybdenum wire 68 is used to penetrate the holes and tighten and fix them to ensure that the baffle plate 67 will not fall off and is easy to disassemble.

[0031] Preferably, the roller seat 1, the positioning pin 2, the roller 3 and the spacer 4 are all made of high-purity graphite material, which has good temperature resistance and is more suitable for high-temperature furnaces than other materials. High-purity graphite has a higher density than other types of graphite, extremely high purity, high tensile strength and excellent toughness, and is also extremely suitable as a supporting material. The lubrication performance of graphite is also better than that of general materials. In terms of reducing friction during rotation, it is also among the best among many materials in previous practical applications and experimental data. The rotating wheel 5 preferably chooses silicon nitride bearings. The bearings rotate smoothly and evenly with little energy loss. The bearings have very little energy loss during rotation. In terms of speed, the bearings can also meet most working conditions. However, traditional bearing materials cannot withstand the test of high temperatures. Here we choose silicon nitride material, which has strong high temperature resistance and the highest working environment can reach 1200 degrees Celsius. It can meet the working conditions required by general high-temperature furnaces and greatly guarantees the transmission efficiency of the energy transfer process in the entire device.

[0032] In the embodiment of the utility model, a through hole for fixing is opened on the top of the roller seat 1, through which it can be connected and fixed with the high-temperature furnace charge plate. Its connection form is simple, convenient, firm and reliable. A two-thirds circular hole is opened on the side, and it is connected and fixed with the roller 3 through the circular hole. Only when a stable connection is ensured, a hole larger than a semicircle is used for fixing, which reduces the space occupied by the support assembly, provides more possibilities for the transfer chamber space, and has more choices in product matching. The roller 3 is a cylinder. When the cylinder contacts and rotates with the transmission member, the energy loss in the energy transfer process is small compared with other shapes, which is more conducive to the rotation of the charging chamber.

[0033] The utility model provides a cylindrical rotating charging chamber structure of a high-temperature atmosphere furnace, which breaks the traditional fixed support and can support the charging chamber to rotate at a uniform speed while playing a supporting effect. A partition is welded inside the charging chamber to facilitate full stirring of the product inside. The end of one side is welded in the form of a fan blade to ensure that the product does not leak out and the filled atmosphere fully reacts with the product under rotating working conditions. The other side is closed with a positioning plate, a baffle ring and a baffle. A trumpet hole is left at the baffle to ensure the discharge of the filled atmosphere. A through hole is drilled in the wall of the charging chamber to fix the baffle and the baffle ring, which is convenient for loading and unloading.

[0034] The utility model has a simple structure, is easy to install and disassemble, has a stable support, smooth and uniform transmission, and is highly adaptable to products that require uniform heating on all sides. One side of the loading chamber is welded in the form of fan blades to ensure smooth airflow and that the product will not overflow from the loading chamber as the loading chamber rotates. A trumpet hole is left on the other side and is fixed with molybdenum wire. While ensuring easy disassembly, the airflow can also flow smoothly.

[0035] The above description is only an implementation method of the utility model and is not intended to limit the protection scope of the utility model. Any modification, equivalent replacement, improvement, expansion, etc. made within the spirit and principle of the utility model are included in the protection scope of the utility model.

Claims

1. A cylindrical rotating charging chamber structure of a high temperature atmosphere furnace, characterized in that: The invention comprises a loading chamber support, a loading chamber (6) and a loading tray (7), wherein two sets of loading chamber supports are arranged in parallel on the loading tray (7), the loading chamber (6) is placed on the two sets of loading chamber supports, and the axis of the loading chamber (6) is parallel to the axis of the two sets of loading chamber supports, and the two sets of loading chamber supports provide rolling support when the loading chamber (6) rotates.

2. The cylindrical rotating charging chamber structure of a high temperature atmosphere furnace according to claim 1, characterized in that: The loading chamber (6) comprises a connecting shaft (61), a loading barrel (63), a partition (64), a blade assembly and a positioning ventilation plate assembly, wherein the loading barrel (63) is a cylindrical structure with one end open, the connecting shaft (61) is arranged at the closed end of the loading barrel (63), and the connecting shaft (61) is provided with a central through hole, the blade assembly is arranged on the inner wall of the loading barrel (63) close to the connecting shaft (61), the positioning ventilation plate assembly is arranged at the open end of the loading barrel (63), the positioning ventilation plate assembly prevents material from leaking to the outside of the loading barrel (63), and has a ventilation hole in the center; a plurality of partitions (64) are arranged on the inner wall of the loading barrel (63) at intervals along the circumferential direction, and each partition (64) is arranged along the axial direction.

3. The cylindrical rotating charging chamber structure of a high temperature atmosphere furnace according to claim 2, characterized in that: The blade assembly comprises a plurality of fan blades (62) arranged obliquely along the circumferential direction, and an overlapping portion is provided between two adjacent fan blades (62), so as to allow the injected atmosphere to smoothly enter the charging barrel (63) while preventing the material from leaking to the outside of the charging barrel (63).

4. The cylindrical rotating charging chamber structure of a high temperature atmosphere furnace according to claim 3, characterized in that: The plurality of fan blades (62) surround the outer side of the connecting shaft (61) and are all welded to the connecting shaft (61).

5. The cylindrical rotating charging chamber structure of a high temperature atmosphere furnace according to claim 2, characterized in that: The positioning vent plate assembly comprises a positioning plate (65), a retaining ring (66), a baffle (67) and a fixing part, wherein the positioning plate (65) is an annular structure, the positioning plate (65) is fixed on the inner wall of the charging barrel (63), the center of the baffle (67) has a bell mouth that protrudes inward and gradually shrinks, and the bell mouth passes through the center holes of the retaining ring (66) and the positioning plate (65) in turn and is located on the inner side of the charging barrel (63), the two side surfaces of the retaining ring (66) are respectively fitted with the positioning plate (65) and the baffle (67), and the outer side of the baffle (67) is limited by a fixing part connected to the charging barrel (63).

6. The cylindrical rotating charging chamber structure of a high temperature atmosphere furnace according to claim 5, characterized in that: The fixing member is a molybdenum wire (68), which is located outside the baffle (67) and has two ends connected to opposite sides of the charging barrel (63).

7. The cylindrical rotating charging chamber structure of a high temperature atmosphere furnace according to claim 2, characterized in that: The loading chamber support comprises a roller seat (1), a roller (3), a spacer sleeve (4) and a rotating wheel (5), wherein the two ends of the roller (3) are supported by two roller seats (1), the two roller seats (1) are detachably connected to the material tray (7), and the roller (3) is alternately provided with a spacer sleeve (4) and a rotating wheel (5).

8. The cylindrical rotating charging chamber structure of a high temperature atmosphere furnace according to claim 7, characterized in that: The roller seat (1) is connected to the material tray (7) in a positioning manner via a positioning pin (2); the lower end of the positioning pin (2) is interference-fitted with a fixed support hole on the material tray (7); and the upper end of the positioning pin (2) is clearance-fitted with a positioning hole on the roller seat (1).

9. The cylindrical rotating charging chamber structure of a high temperature atmosphere furnace according to claim 8, characterized in that: The roller seat (1), positioning pin (2), roller (3) and spacer (4) are all made of high-purity graphite.

10. The cylindrical rotating charging chamber structure of a high temperature atmosphere furnace according to claim 1, characterized in that: The charging chamber (6) is made of stainless steel.

Images