Vacuum atmosphere rotary furnace with uniform heating function

Abstract

The invention belongs to the technical field of rotary furnaces, and discloses a uniform-heating vacuum atmosphere rotary furnace which comprises a base, a heating assembly, an inner furnace and a vacuum assembly and further comprises two flange plates fixedly connected to the opposite sides of the inner furnace and the vacuum assembly and used for fixedly connecting the inner furnace and the vacuum assembly; the alarm mechanism is arranged on the surfaces of the two flange plates in a sleeving manner; a first connecting plate and a rack are pushed to move, when the first connecting plate moves, a spring is compressed, then the rack drives a first gear, a rotating rod and a connecting block to rotate, the connecting block drives a swing rod and a knocking block to swing in a reciprocating mode, the knocking block continuously knocks the surface of a metal block, and therefore an operator is reminded of gas leakage; and finally, the leaked air drives the knocking block to knock the metal block to make a sound, so that the metal block can quickly take measures, and the influence on the heating uniformity and atmosphere control of equipment is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of rotary kilns, in particular to a vacuum atmosphere rotary kiln with uniform heating. Background Art

[0002] Vacuum atmosphere rotary kiln is a highly efficient heating equipment, specially designed for uniform heating of materials in vacuum or specific atmosphere; At present, the traditional vacuum atmosphere rotary kiln is to add raw materials into the inner furnace, then drive the vacuum pump to extract the gas in the furnace to form a vacuum environment, and then start the heating system to gradually increase the temperature in the furnace to a preset value, and finally start the atmosphere control system to introduce the required atmosphere into the furnace, and at the same time start the rotating component to evenly heat the raw materials; However, in actual use, especially the connection between the vacuum pump and the furnace body, flanges are mostly used for fixing. Although this connection method can provide reliable sealing in the initial stage, under long-term high-temperature working conditions, the gaskets between the flanges will inevitably age. The aging of the gaskets will cause their sealing performance to deteriorate, and then leakage may occur at the connected flanges. This gas leakage will directly lead to a decrease in the vacuum degree in the furnace, which will affect the heating uniformity of the equipment and the accuracy of atmosphere control. Summary of the invention

[0003] In order to solve the problem of gasket aging and gas leakage inside the inner furnace, which affects the heating uniformity of the equipment and the accuracy of atmosphere control, the present invention provides a vacuum atmosphere rotary furnace with uniform heating.

[0004] To achieve the above object, the present invention provides the following technical solution: a vacuum atmosphere rotary kiln with uniform heating, comprising a base, a heating component, an inner furnace and a vacuum component, and also comprising: A flange is fixedly connected to the inner furnace and the opposite side of the vacuum component, and there are two flanges, which respectively connect and fix the inner furnace and the vacuum component; An alarm mechanism, which is sleeved on the surfaces of the two flanges; The rotating assembly is installed on the surface of the inner furnace to make the raw materials evenly heated; Wherein, the alarm mechanism includes a sealing sleeve, the sealing sleeve is sleeved on the surfaces of the two flanges, a fixed shell located at the bottom of the sealing sleeve is fixedly installed on the top of the base, a driving component is arranged inside the fixed shell, a gear 1 is rotated inside the fixed shell, and the driving component can drive the gear 1 to rotate; The fixed shell is rotatably connected to a swing rod, a metal block is fixedly installed at the bottom end of the fixed shell, a knocking block located at the top of the metal block is fixedly installed at one end of the swing rod, a rotating rod is fixedly installed on one side of the gear close to the swing rod, and a connecting block located inside the swing rod is fixedly installed on one side of the rotating rod.

[0005] Preferably, the driving assembly includes a spring, the spring is fixedly connected to the inside of the fixed shell, one end of the spring is fixedly mounted with a connecting plate 1, one side of the connecting plate 1 is fixedly mounted with a rack meshing with the gear 1 and used to drive the gear 1 to rotate; A connecting hose is fixedly installed at the bottom end of the outer surface of the sealing sleeve, one end of the connecting hose extends to the inside of the fixed shell, and an air bag located on the other side of the connecting plate is fixedly installed.

[0006] Preferably, it further comprises: a fixing mechanism, which is arranged on the surface of the sealing sleeve and can fix the sealing sleeve on the surface of the flange, the fixing mechanism comprises a second connecting plate, the second connecting plate is fixedly connected to one side of the surface of the sealing sleeve, a fixing box is fixedly installed on the top of the fixing shell, a limiting rod 1 located inside the second connecting plate is fixedly installed inside the fixing box, and the second connecting plate can slide on the surface of the first limiting rod; A motor is fixedly installed on one side of the fixed box, the output end of the motor extends to the interior of the fixed box and is fixedly installed with a lead screw, a sliding block is threadedly connected to the surface of the lead screw, a sliding groove is provided on one side of the sliding block close to the second connecting plate, and a slider located inside the sliding groove is fixedly installed on one end of the second connecting plate close to the sliding block.

[0007] Preferably, the rotating component includes a gear ring, which is fixedly connected to the surface of the inner furnace. A driving member is fixedly installed inside the heating component, and a gear 2 meshing with gear 2 is fixedly installed on the output end of the driving member, and can drive the gear ring and the inner furnace to rotate.

[0008] Preferably, it also includes: a sealing component, which is opened at the top of the bottom sealing sleeve, the sealing component includes a sealing block, the sealing block is opened at the top of the bottom sealing sleeve, and the bottom of the top sealing sleeve is fixedly installed with a sealing groove located inside the sealing block.

[0009] Preferably, it also includes: a limit assembly, which is arranged inside the fixed box, the limit assembly includes a limit rod 2, the limit rod 2 is fixedly connected to the inside of the fixed box, the surface of the limit rod 2 is slidably connected to the limit block, and one side of the limit block is fixedly connected to one side of the sliding block.

[0010] Preferably, the slide groove is of inclined design and there are two of them. The two slide grooves are designed to be transversely symmetrical about the center of the sliding block, and the surfaces of the sliding blocks are both in contact with the inner walls of the slide grooves.

[0011] Preferably, the number of the springs is two and they are designed to be transversely symmetrical about the center of the connecting plate 1. A telescopic rod is provided inside the spring, and both ends of the telescopic rod are fixedly connected to the connecting plate 1 and one end of the fixed shell.

[0012] Preferably, threaded plates are provided on both sides of the outer surface of the fixing shell and are designed to be longitudinally symmetrical about the center of the fixing shell.

[0013] Preferably, a square hole is opened on one side of the fixing box, and the second connecting plate can slide inside the square hole. The number of the first limiting rods is two and they are designed to be transversely symmetrical about the center of the second connecting plate.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The present invention allows the leaked gas to enter the interior of the airbag, causing it to expand, and will push the connecting plate 1 and the rack to move. When the connecting plate 1 moves, the spring will be compressed, and then the rack will drive the gear 1, the rotating rod and the connecting block to rotate. The connecting block will drive the swing rod and the knocking block to swing back and forth, and the knocking block will continuously knock on the surface of the metal block, thereby reminding the operator that the gas has leaked. Finally, the knocking block is driven by the leaked air to knock on the metal block to make a sound, so that they can quickly take measures to avoid affecting the heating uniformity and atmosphere control of the equipment. The present invention drives the screw rod to rotate by driving the motor, and the sliding block will move on the surface of the screw rod. While moving, the sliding block will move along the inclination direction of the sliding groove, and then the sliding block will drive the connecting plate 2 and the sealing sleeve to move toward the surface of the flange. Then the sealing sleeve will be sleeved on the surface of the flange, and the fixing mechanism will fix the sealing sleeve. Finally, the connecting plate 2 is driven by the motor to drive the sealing sleeve to be sleeved on the surface of the flange, so that the operator can quickly sleeve the sealing sleeve on the surface of the flange, thereby increasing the convenience of device operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 A schematic diagram of a cross-sectional view of a heating assembly of the present invention; Figure 3 It is a schematic diagram of a cross-sectional view of a sealing sleeve of the present invention; Figure 4 This is a schematic diagram showing the interior of the fixed housing of the present invention; Figure 5 It is a schematic diagram of a cross-sectional fixed box of the present invention; Figure 6 This is a schematic diagram showing the chute of the present invention; Figure 7 A schematic diagram showing a sealing assembly of the present invention; Figure 8 For the present invention Figure 2 A is an enlarged schematic diagram.

[0016] In the figure: 1, base; 2, heating component; 3, inner furnace; 4, vacuum component; 5, flange; 6, alarm mechanism; 601, sealing sleeve; 602, fixed shell; 603, swing rod; 604, knock block; 605, metal block; 606, gear 1; 607, rotating rod; 608, connecting block; 7, driving component; 701, spring; 702, connecting plate 1; 703, rack; 704, connecting hose; 705, airbag; 8 , fixing mechanism; 801, fixing box; 802, limiting rod one; 803, connecting plate two; 804, motor; 805, screw rod; 806, sliding block; 807, sliding groove; 808, sliding block; 9, rotating component; 901, gear ring; 902, driving member; 903, gear two; 10, sealing component; 1001, sealing groove; 1002, sealing block; 11, limiting component; 1101, limiting rod two; 1102, limiting block. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] like Figures 1 to 8 As shown, the present invention provides a vacuum atmosphere rotary kiln with uniform heating, comprising a base 1, a heating component 2, an inner furnace 3 and a vacuum component 4, and also comprising: A flange 5 is fixedly connected to the inner furnace 3 and the opposite side of the vacuum assembly 4, and there are two flanges 5, which respectively connect and fix the inner furnace 3 and the vacuum assembly 4; An alarm mechanism 6 is sleeved on the surfaces of the two flanges 5, and the number of the alarm mechanisms 6 is two, which can completely cover the surfaces of the flanges 5; The rotating assembly 9 is installed on the surface of the inner furnace 3 and can drive the inner furnace 3 to rotate so that the raw materials inside the inner furnace 3 are evenly heated; The alarm mechanism 6 includes a sealing sleeve 601, which is sleeved on the surfaces of the two flanges 5. A fixed shell 602 located at the bottom of the sealing sleeve 601 is fixedly installed on the top of the base 1. A driving component 7 is arranged inside the fixed shell 602. A gear 1 606 rotates inside the fixed shell 602, and the driving component 7 can drive the gear 1 606 to rotate. The fixed shell 602 is internally rotatably connected to a swing rod 603, a metal block 605 is fixedly installed at the bottom end of the fixed shell 602, a striking block 604 located at the top of the metal block 605 is fixedly installed at one end of the swing rod 603, a rotating rod 607 is fixedly installed on the side of the gear 1 606 close to the swing rod 603, and a connecting block 608 located inside the swing rod 603 is fixedly installed on one side of the rotating rod 607.

[0019] The above scheme is adopted: the operator sets the sealing sleeve 601 on the surface of the flange 5 through the fixing mechanism 8, and then opens the valve of the inner furnace 3 at the other end to put the raw materials into the inner furnace 3. After the addition is completed, the vacuum component 4 can be driven to extract the gas in the inner furnace 3 to form a vacuum environment, and then the heating system is started to gradually increase the temperature in the furnace to a preset value. Then, the rotating component 9 can be driven to rotate the inner furnace 3, so that the raw materials are heated evenly, and finally the atmosphere control system is started to introduce the required atmosphere into the furnace; During operation, when gas leakage occurs in the two flanges 5 used for connection, the outflowing gas will enter the interior of the sealing sleeve 601, and then the gas will enter the interior of the driving component 7, and then the driving component 7 will drive gear 606 to rotate, and gear 606 will drive the rotating rod 607 and the connecting block 608 to rotate, and the connecting block 608 will slide on the swing rod 603, and will drive the swing rod 603 to swing back and forth, and the swing rod 603 will drive the knocking block 604 to swing, and in the process of its swinging, it will knock on the surface of the metal block 605, making it make a sound, thereby reminding the operator of the gas leakage, and finally the leaked air drives the knocking block 604 to knock on the metal block 605 to make a sound, so that they can take quick measures to avoid affecting the heating uniformity and atmosphere control of the equipment.

[0020] like Figure 3 and Figure 4 As shown, the driving assembly 7 includes a spring 701, which is fixedly connected to the interior of the fixed shell 602, and a connecting plate 702 is fixedly installed at one end of the spring 701, and a rack 703 meshing with a gear 606 is fixedly installed on one side of the connecting plate 702, and is used to drive the gear 606 to rotate; A connecting hose 704 is fixedly installed at the bottom end of the outer surface of the sealing sleeve 601 , one end of the connecting hose 704 extends to the inside of the fixed shell 602 , and an air bag 705 located on the other side of the connecting plate 1 702 is fixedly installed.

[0021] The above scheme is adopted: through the design of the driving component 7, the gas entering the sealing sleeve 601 will pass through the connecting hose 704 and enter the inside of the airbag 705. When the gas enters the inside of the airbag 705, the airbag 705 will expand, and then one end of the airbag 705 will contact the surface of the connecting plate 702 and push the connecting plate 702 to move. When the connecting plate 702 moves, the spring 701 will be compressed, and then the connecting plate 702 will drive the rack 703 to move, because the rack 703 is engaged with the gear 606, and then the moving rack 703 will drive the gear 606 to rotate, and then the gear 606 will drive the swing rod 603 and the knocking block 604 to knock on the surface of the metal block 605.

[0022] like Figure 5 , Figure 6 and Figure 7 As shown, it also includes: a fixing mechanism 8, which is arranged on the surface of the sealing sleeve 601 and can fix the sealing sleeve 601 on the surface of the flange 5, the fixing mechanism 8 includes a second connecting plate 803, the second connecting plate 803 is fixedly connected to one side of the surface of the sealing sleeve 601, a fixing box 801 is fixedly installed on the top of the fixing shell 602, and a limiting rod 1 802 located inside the second connecting plate 803 is fixedly installed inside the fixing box 801, and the second connecting plate 803 can slide on the surface of the limiting rod 1 802; A motor 804 is fixedly installed on one side of the fixed box 801, and the output end of the motor 804 extends to the interior of the fixed box 801 and is fixedly installed with a screw rod 805. A sliding block 806 is threadedly connected to the surface of the screw rod 805. A sliding groove 807 is provided on one side of the sliding block 806 close to the connecting plate 803, and a slider 808 located inside the sliding groove 807 is fixedly installed on one end of the connecting plate 803 close to the sliding block 806.

[0023] The above scheme is adopted: through the design of the fixing mechanism 8, the motor 804 can be driven to rotate the screw rod 805. Since the screw rod 805 is threadedly connected with the sliding block 806, when the screw rod 805 rotates, the sliding block 806 and the slide groove 807 will move on the surface of the screw rod 805, and then the slider 808 will slide inside the slide groove 807. During the sliding process, the slide groove 807 will drive the connecting plate 2 803 and the sealing sleeve 601 to move toward the surface of the flange 5, and then the two sealing sleeves 601 will be completely mounted on the surface of the flange 5. Finally, by driving the motor 804, the connecting plate 2 803 drives the sealing sleeve 601 to be mounted on the surface of the flange 5, which makes it convenient for the operator to quickly mount the sealing sleeve 601 on the surface of the flange 5, thereby increasing the convenience of device operation.

[0024] like Figure 1 and Figure 8As shown, the rotating component 9 includes a gear ring 901, which is fixedly connected to the surface of the inner furnace 3. A driving member 902 is fixedly installed inside the heating component 2, and a gear 2 903 meshing with a gear 2 903 is fixedly installed on the output end of the driving member 902, and can drive the gear ring 901 and the inner furnace 3 to rotate.

[0025] The above scheme is adopted: through the design of the rotating component 9, when the heating system is started, the driving member 902 can be driven to rotate the gear 2 903, because the gear 2 903 is meshed with the gear ring 901, and then the rotating gear 2 903 will drive the gear ring 901 and the inner furnace 3 to rotate, and then the inner furnace 3 will drive the raw materials to be turned continuously, so that the raw materials can be heated more evenly.

[0026] like Figure 5 and Figure 7 As shown, it also includes: a sealing component 10, which is opened at the top of the bottom sealing sleeve 601, the sealing component 10 includes a sealing block 1002, the sealing block 1002 is opened at the top of the bottom sealing sleeve 601, and the bottom of the top sealing sleeve 601 is fixedly installed with a sealing groove 1001 located inside the sealing block 1002, and also includes: a limiting component 11, which is arranged inside the fixed box 801, the limiting component 11 includes a limiting rod 1101, the limiting rod 1101 is fixedly connected to the inside of the fixed box 801, the surface of the limiting rod 1101 is slidably connected to the limiting block 1102, and one side of the limiting block 1102 is fixedly connected to one side of the sliding block 806.

[0027] The above scheme is adopted: through the design of the sealing component 10, when the two sealing sleeves 601 are completely mounted on the surface of the flange 5, the sealing block 1002 will enter the interior of the sealing groove 1001, thereby increasing the sealing performance of the sealing sleeve 601 and preventing gas from leaking to the outside of the sealing sleeve 601. Through the design of the limiting component 11, when the sliding block 806 moves, the limiting block 1102 will slide on the surface of the limiting rod 1101. The limiting rod 1101 limits the limiting block 1102 and the sliding block 806, thereby enabling the sliding block 806 to move stably.

[0028] like Figure 3 , Figure 4 and Figure 6 As shown, the slide groove 807 is inclined and there are two of them. The two slide grooves 807 are designed to be transversely symmetrical about the center of the sliding block 806. The surface of the slider 808 is in contact with the inner wall of the slide groove 807. There are two springs 701, which are designed to be transversely symmetrical about the center of the connecting plate 702. A telescopic rod is provided inside the spring 701, and both ends of the telescopic rod are fixedly connected to the connecting plate 702 and one end of the fixed shell 602.

[0029] The above scheme is adopted: through the design of the slide groove 807 and the slider 808, since the slide groove 807 is designed to be inclined and symmetrical, when the sliding block 806 moves, the slider 808 will move toward or relative to each other along the inclination direction of the slide groove 807, thereby facilitating the sealing sleeve 601 to be sleeved on the surface of the flange 5. Through the design of the spring 701, since the spring 701 is symmetrically designed, when the sealing sleeve 601 is opened, the compressed spring 701 will push the connecting plate 702 to reset, thereby squeezing out the air inside the airbag 705, and then the squeezed air will be discharged from the inside of the sealing sleeve 601, and a telescopic rod is provided inside the spring 701, thereby limiting the spring 701 to avoid position displacement when it is compressed.

[0030] like Figure 1 , Figure 3 and Figure 5 As shown, threaded plates are provided on both sides of the outer surface of the fixed shell 602, and are designed to be longitudinally symmetrical about the center of the fixed shell 602. A square hole is opened on one side of the fixed box 801, and the connecting plate 2 803 can slide inside the square hole. There are two limit rods 1 802, and they are designed to be transversely symmetrical about the center of the connecting plate 2 803.

[0031] The above scheme is adopted: through the design of the fixed shell 602, since threaded plates are provided on both sides of the fixed shell 602, which is a symmetrical design, the bolts can be inserted into the threaded plates, and the alarm mechanism 6 is fixed to the top of the base 1, through the interior of the fixed box 801 and the limiting rod 1 802, when the connecting plate 2 803 moves, it will slide inside the square hole, and the surface of the connecting plate 2 803 is fitted with the inner wall of the square hole, and then the limiting rod 1 802 and the square hole cooperate with each other, so that the connecting plate 2 803 can be limited at the same time.

[0032] The working principle and use process of the present invention: First, the operator can use bolts to fix the alarm mechanism 6 to the top pipe of the base 1, and then the sealing sleeve 601 will be aligned with the flange 5, and then the motor 804 can be driven to rotate the screw rod 805, and the sliding block 806 will move on the surface of the screw rod 805. While moving, the slider 808 will move along the inclined direction of the slide groove 807, and then the slider 808 will drive the connecting plate 2 803 and the sealing sleeve 601 to move toward the surface of the flange 5, and then the sealing sleeve 601 will be sleeved on the surface of the flange 5, and the fixing mechanism 8 will fix the sealing sleeve 601; After the fixing is completed, the raw material can be placed in the inner furnace 3, the vacuum component 4 can be driven to extract the gas in the inner furnace 3 to form a vacuum environment, and then the heating system is started to gradually increase the temperature in the furnace to a preset value. At the same time, the rotating component 9 can be driven to rotate the inner furnace 3, so that the raw material is heated evenly, and the atmosphere control system can be started to introduce the required atmosphere into the furnace. During the operation of the device, when the gas leaks from between the two flanges 5, the leaked gas will enter the interior of the sealing sleeve 601 and pass through the connecting hose 704 into the inner furnace 3. The spring 701 is compressed, and then the rack 703 drives the gear 1 606, the rotating rod 607 and the connecting block 608 to rotate. The connecting block 608 drives the swing rod 603 and the knocking block 604 to swing back and forth, and the knocking block 604 continuously knocks on the surface of the metal block 605, so that they can take quick measures to prevent potential accidents or injuries and finally complete the operation process.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vacuum atmosphere rotary kiln with uniform heating, comprising a base (1), a heating component (2), an inner furnace (3) and a vacuum component (4), characterized in that: Also included are: A flange (5) is fixedly connected to the inner furnace (3) and the vacuum component (4) on opposite sides thereof, and the number of flanges (5) is two, which respectively connect and fix the inner furnace (3) and the vacuum component (4); An alarm mechanism (6) is sleeved on the surfaces of the two flanges (5); A rotating assembly (9) mounted on the surface of the inner furnace (3) to allow the raw materials to be heated evenly; The alarm mechanism (6) comprises a sealing sleeve (601), the sealing sleeve (601) being sleeved on the surfaces of the two flanges (5), a fixed shell (602) located at the bottom of the sealing sleeve (601) being fixedly mounted on the top of the base (1), a driving assembly (7) being arranged inside the fixed shell (602), a gear one (606) being rotatable inside the fixed shell (602), and the driving assembly (7) being capable of driving the gear one (606) to rotate; The interior of the fixed shell (602) is rotatably connected to a swing rod (603); a metal block (605) is fixedly mounted at the bottom end of the interior of the fixed shell (602); a striking block (604) located at the top of the metal block (605) is fixedly mounted at one end of the swing rod (603); a rotating rod (607) is fixedly mounted on a side of the gear 1 (606) close to the swing rod (603); and a connecting block (608) located inside the swing rod (603) is fixedly mounted on one side of the rotating rod (607).

2. The vacuum atmosphere rotary kiln with uniform heating according to claim 1, characterized in that: The driving assembly (7) comprises a spring (701), wherein the spring (701) is fixedly connected to the interior of the fixed shell (602), a connecting plate 1 (702) is fixedly mounted on one end of the spring (701), and a rack (703) meshing with gear 1 (606) is fixedly mounted on one side of the connecting plate 1 (702) and is used to drive gear 1 (606) to rotate; A connecting hose (704) is fixedly mounted on the bottom end of the outer surface of the sealing sleeve (601), one end of the connecting hose (704) extends into the interior of the fixed shell (602), and an air bag (705) located on the other side of the connecting plate (702) is fixedly mounted.

3. The vacuum atmosphere rotary kiln with uniform heating according to claim 1, characterized in that: It also includes: a fixing mechanism (8), which is arranged on the surface of the sealing sleeve (601) and can fix the sealing sleeve (601) to the surface of the flange (5), the fixing mechanism (8) includes a second connecting plate (803), the second connecting plate (803) is fixedly connected to one side of the surface of the sealing sleeve (601), a fixing box (801) is fixedly installed on the top of the fixing shell (602), a limiting rod (802) located inside the second connecting plate (803) is fixedly installed inside the fixing box (801), and the second connecting plate (803) can slide on the surface of the first limiting rod (802); A motor (804) is fixedly mounted on one side of the fixed box (801); an output end of the motor (804) extends into the interior of the fixed box (801) and is fixedly mounted with a lead screw (805); a sliding block (806) is threadedly connected to a surface of the lead screw (805); a sliding groove (807) is provided on a side of the sliding block (806) close to the second connecting plate (803); and a sliding block (808) located inside the sliding groove (807) is fixedly mounted on one end of the second connecting plate (803) close to the sliding block (806).

4. The vacuum atmosphere rotary kiln with uniform heating according to claim 1, characterized in that: The rotating assembly (9) comprises a gear ring (901), the gear ring (901) being fixedly connected to the surface of the inner furnace (3), a driving member (902) being fixedly installed inside the heating assembly (2), a gear second (903) meshing with gear second (903) being fixedly installed at an output end of the driving member (902), and being capable of driving the gear ring (901) and the inner furnace (3) to rotate.

5. The vacuum atmosphere rotary kiln with uniform heating according to claim 1, characterized in that: The invention also comprises: a sealing component (10) which is opened at the top of the bottom sealing sleeve (601); the sealing component (10) comprises a sealing block (1002); the sealing block (1002) is opened at the top of the bottom sealing sleeve (601); and a sealing groove (1001) located inside the sealing block (1002) is fixedly installed at the bottom of the top sealing sleeve (601).

6. The vacuum atmosphere rotary kiln with uniform heating according to claim 3, characterized in that: The invention also includes: a limit assembly (11) which is arranged inside the fixed box (801), the limit assembly (11) comprising a second limit rod (1101), the second limit rod (1101) being fixedly connected to the inside of the fixed box (801), the surface of the second limit rod (1101) being slidably connected to a limit block (1102), and one side of the limit block (1102) being fixedly connected to one side of a sliding block (806).

7. The vacuum atmosphere rotary kiln with uniform heating according to claim 3, characterized in that: The slide grooves (807) are designed to be inclined and there are two of them. The two slide grooves (807) are designed to be transversely symmetrical about the center of the sliding block (806), and the surfaces of the sliding blocks (808) are both in contact with the inner walls of the slide grooves (807).

8. The vacuum atmosphere rotary kiln with uniform heating according to claim 2, characterized in that: The number of the springs (701) is two, and they are designed to be transversely symmetrical about the center of the connecting plate (702). A telescopic rod is provided inside the spring (701), and both ends of the telescopic rod are fixedly connected to the connecting plate (702) and one end of the fixed shell (602).

9. The vacuum atmosphere rotary kiln with uniform heating according to claim 1, characterized in that: Threaded plates are provided on both sides of the outer surface of the fixing shell (602) and are designed to be longitudinally symmetrical about the center of the fixing shell (602).

10. The vacuum atmosphere rotary kiln with uniform heating according to claim 3, characterized in that: A square hole is opened on one side of the fixing box (801), and the second connecting plate (803) can slide inside the square hole. The number of the first limiting rod (802) is two and they are designed to be transversely symmetrical about the center of the second connecting plate (803).

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