Vacuum high-temperature brazing furnace for graphite column production

Abstract

The utility model discloses a vacuum high-temperature brazing furnace for graphite column production, which relates to the technical field of vacuum high-temperature brazing furnaces and comprises a furnace body, a furnace door arranged on the furnace body, a heating jacket mounted in the furnace body, a cooling jacket arranged between the furnace body and the heating jacket, and a heating chamber and a fixing frame separated by the heating jacket in the furnace body. The fixing frame is fixedly connected to the furnace door, a containing table is arranged above the fixing frame, and a lifting assembly used for lifting and moving the containing table is arranged on the fixing frame. The graphite column placing table is reasonable in design structure, the height of the placing table is adjusted by arranging the lifting assembly, so that the graphite column can be accurately adjusted to the optimal heating position under the condition of any batch quantity, the graphite column can be uniformly heated in the heat treatment process by adjusting the adaptive height, and the heat treatment efficiency is improved. And the problem of uneven heating caused by placement position deviation is avoided, so that the machining quality and performance of the graphite column are remarkably improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to vacuum high temperature brazing furnace technical field, specifically a graphite column production is with vacuum high temperature brazing furnace. BACKGROUND

[0002] Graphite column is indispensable, important spare part in modern high -efficient machinery, according to different process conditions and friction and material, can be matched with different materials and the various specifications of carbon of different material immersion, graphite column needs to utilize vacuum high temperature brazing furnace to carry out heat treatment in the production and processing.

[0003] The Chinese patent with publication number CN209906839U discloses a vacuum furnace for processing die casting molds, which has a self-loading mechanism, facilitating feeding and discharging, and has good sealing performance, high work efficiency and safety. The vacuum furnace has an inductive heating structure, and an induction coil is arranged on the outer side of the furnace core. The mold in the furnace core can be heated by eddy current effect through electric current, which is uniform and efficient. At the same time, the device is provided with a nitrogen quenching mechanism. Through the multiple nitrogen gas nozzles arranged on the furnace core, low-temperature nitrogen gas can be sprayed into the furnace core, which is beneficial to improve the hardenability of the mold, reduce the deformation degree of the mold, improve the production quality, and the vacuum furnace is sealed by the furnace door.

[0004] In the above-mentioned scheme, the self-loading structure is used to automatically load and unload the bearing bracket from the furnace. The height of the bearing bracket is fixed, and the graphite columns are stacked on the bearing bracket for heat treatment by the tooling. However, when processing different batches of graphite columns, the deviation of the placement position of the graphite columns may cause them not to be in the optimal heating position, affecting the uniform heating of the graphite columns and reducing the processing quality. Therefore, we provide a vacuum high temperature brazing furnace for graphite column production to solve the above problems. Utility model content

[0005] I) Technical problem solved

[0006] The purpose of the utility model is to make up for the deficiencies of the prior art, and provide a vacuum high temperature brazing furnace for graphite column production.

[0007] II) Technical scheme

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a vacuum high temperature brazing furnace for graphite column production, comprising:

[0009] The furnace body is provided with a furnace door, and a heating jacket is installed in the furnace body. A cooling jacket is arranged between the furnace body and the heating jacket, and a heating chamber is separated by the heating jacket in the furnace body.

[0010] The fixed frame is fixedly connected to the furnace door, an upper portion of the fixed frame is provided with a placing table, and a lifting assembly for lifting and moving the placing table is arranged on the fixed frame.

[0011] The base is arranged below the furnace body, a fixing seat is arranged on the base, the furnace body is fixedly connected to the fixing seat, a vacuum pump is arranged on the base, and an input end of the vacuum pump is arranged on the furnace body.

[0012] The moving assembly is arranged on the base and is used for moving the furnace door transversely to realize the in-out of the placing table in the heating chamber.

[0013] Further, the lifting assembly comprises a bidirectional screw rod rotatably connected to the fixed frame, both ends of the bidirectional screw rod are threadedly connected with sliding blocks, the sliding blocks are hingedly connected with hinged rods, one end of the hinged rod away from the sliding block is hingedly connected with a hinged seat, and the hinged seat is fixedly connected to the placing table.

[0014] Further, the bidirectional screw rod is fixedly connected with a limiting gear and a screw block, the fixed frame is fixedly connected with an adjusting seat, the adjusting seat is threadedly connected with a limiting screw rod, and one end of the limiting screw rod is inserted into the limiting gear.

[0015] Further, the bottom surface of the fixed frame is provided with two groups of supporting wheels, and the supporting wheels roll on the heating jacket.

[0016] Further, the upper surface of the fixed frame is fixedly connected with two groups of spring telescopic rods, and the telescopic ends of the spring telescopic rods are fixedly connected to the placing table.

[0017] Further, the placing table is provided with a slot.

[0018] Further, the moving assembly comprises a first motor arranged on the base, the base is provided with a moving slot, an output rotating shaft of the first motor is provided with a unidirectional screw rod, the unidirectional screw rod is rotatably connected to the moving slot, the unidirectional screw rod is threadedly connected with a moving block, and one end of the moving block is fixedly connected to the furnace door.

[0019] Further, the fixing seat is slidably connected with two guide rods, both the guide rods are fixedly connected with guide blocks, and one end of the guide block is fixedly connected to the furnace door.

[0020] III) Beneficial effects:

[0021] Compared with the prior art, the vacuum high-temperature brazing furnace for producing graphite columns has the following beneficial effects:

[0022] The utility model discloses a height of placing table is adjusted through the setting lifting assembly, makes no matter in whatever batch quantity case, the graphite column can be accurately adjusted to the best heating position, and the adaptability height's adjustment ensures that the graphite column can be evenly heated in the heat treatment process, avoids the problem of uneven heating due to the deviation of placing position, thereby the processing quality and performance of graphite column are improved significantly.

[0023] The utility model discloses a automatic in -out function of furnace door and placing table is realized through moving assembly and self -loading mechanism, not only reduces the work intensity of manual loading and unloading, still increased the security of operation, and the stability of placing table in the lifting process is ensured through the design of bidirectional screw rod and stop device, and the stability of fixed frame is further guaranteed through the structure such as support wheel, spring telescopic link, these all help to improve the reliability and work efficiency of whole system. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is the perspective view of the utility model;

[0025] Figure 2 It is the sectional view of the utility model;

[0026] Figure 3 It is the utility model Figure 2 The enlarged schematic view of structure in A place.

[0027] In the drawing: 1, furnace body;2, furnace door;3, base;4, fixed seat;5, first motor;6, moving groove;7, one-way screw;8, moving block;9, guide block;10, guide rod;11, vacuumizing machine;12, heating jacket;13, cooling jacket;14, heating chamber;15, placing table;16, fixed frame;17, bidirectional screw rod;18, sliding block;19, hinged seat;20, hinged rod;21, slot;22, spring telescopic link;23, limit gear;24, support wheel;25, adjusting seat;26, limit screw;27, screw block. DETAILED DESCRIPTION

[0028] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the scope of protection of the utility model.

[0029] As Figures 1-3 The utility model provides a kind of technical scheme: a graphite column production is used vacuum high-temperature brazing furnace, including furnace body 1, base 3, fixed frame 16 and moving assembly.

[0030] The furnace body 1 is provided with a furnace door 2, and a heating jacket 12 is installed in the furnace body 1. A cooling jacket 13 is arranged between the furnace body 1 and the heating jacket 12. The furnace body 1 is divided into a heating chamber 14 by the heating jacket 12. The cooling jacket 13 is a combination structure of a cooling water pipe and a heat dissipation fin, which can dissipate heat in the heating chamber 14. The heating jacket 12 is composed of a stainless steel shell, an aluminum silicate felt and carbon felt insulation layer, a graphite heater, a graphite connecting plate, a graphite lead electrode, an insulating fixing part, a graphite furnace bed and the like. In a vacuum state, the graphite column placed in the heating chamber 14 is heated by the heat generated by the graphite heater.

[0031] A fixed frame 16 is fixedly connected to the furnace door 2. An upper portion of the fixed frame 16 is provided with a placing table 15. The placing table 15 is provided with a slot 21. The slot 21 is designed on the placing table 15, which facilitates workers to use a forklift or the like to move the tooling loaded with the graphite column away from the placing table 15. The fixed frame 16 is provided with a lifting assembly for lifting and moving the placing table 15.

[0032] The lifting assembly comprises a bidirectional screw rod 17 rotatably connected to the fixed frame 16. Both ends of the bidirectional screw rod 17 are threadedly connected with sliding blocks 18. The sliding blocks 18 are hingedly connected with a hinge rod 20. An end of the hinge rod 20 away from the sliding blocks 18 is hingedly connected with a hinge seat 19. The hinge seat 19 is fixedly connected to the placing table 15.

[0033] The bidirectional screw rod 17 is rotated in the fixed frame 16, and the two sliding blocks 18 are moved on the bidirectional screw rod 17. Under the action of the hinge rod 20, the hinge seat 19 drives the placing table 15 to move up and down, so that the supporting height of the placing table 15 can be adaptively adjusted.

[0034] The bidirectional screw rod 17 is fixedly connected with a limiting gear 23 and a screw block 27. The fixed frame 16 is fixedly connected with an adjusting seat 25. The adjusting seat 25 is threadedly connected with a limiting screw rod 26. An end of the limiting screw rod 26 is inserted into the limiting gear 23. After the bidirectional screw rod 17 is adjusted, the limiting screw rod 26 is inserted into the limiting gear 23, so that the bidirectional screw rod 17 can be limited.

[0035] Two groups of supporting wheels 24 are installed on the bottom surface of the fixed frame 16. The supporting wheels 24 roll on the heating jacket 12. When the fixed frame 16 moves, the supporting wheels 24 support the fixed frame 16, thereby improving the stability of the fixed frame 16.

[0036] Two groups of spring telescopic rods 22 are fixedly connected to the upper surface of the fixed frame 16. The telescopic ends of the spring telescopic rods 22 are fixedly connected to the placing table 15. The spring telescopic rods 22 assist in supporting the placing table 15, thereby improving the stability of the placing table 15.

[0037] The base 3 is arranged below the furnace body 1, a fixing base 4 is arranged on the base 3, the furnace body 1 is fixedly connected to the fixing base 4, a vacuum pump 11 is also arranged on the base 3, an input end of the vacuum pump 11 is arranged on the furnace body 1, and an electromagnetic valve is arranged at a communication position of the vacuum pump 11 and the furnace body 1, so that a vacuum environment is formed in the heating chamber 14 by the vacuum pump 11.

[0038] A moving assembly is arranged on the base 3 and used for moving the furnace door 2 transversely to realize the in-out of the placing table 15 in the heating chamber 14, the moving assembly comprises a first motor 5 arranged on the base 3, a moving groove 6 is arranged on the base 3, a unidirectional screw rod 7 is arranged on an output rotating shaft of the first motor 5 and is rotatably connected to the moving groove 6, and a moving block 8 is threadedly connected to the unidirectional screw rod 7 and is fixedly connected to one end of the furnace door 2.

[0039] The unidirectional screw rod 7 is driven to rotate by the output rotating shaft of the first motor 5, and the moving block 8 is driven to slide in the moving groove 6, so that the furnace door 2 is moved, the furnace door 2 can be opened and closed with the furnace body 1, and the placing table 15 is moved when the furnace door 2 is moved, so that the graphite column can be automatically loaded and unloaded.

[0040] Two guide rods 10 are slidably connected to the fixing base 4, guide blocks 9 are fixedly connected to the two guide rods 10, and one end of each guide block 9 is fixedly connected to the furnace door 2, so that the guide blocks 9 are moved when the furnace door 2 is moved, and the guide rods 10 are slid on the fixing base 4, thereby improving the stability of the furnace door 2 in the moving state.

[0041] It should be noted that, in this document, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used for the convenience of describing the present application and simplifying the description, and cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application; the terms "first", "second", "third" are only used for description purposes, and cannot be understood as indicating or implying relative importance, in addition, unless otherwise explicitly specified and limited, the terms "fixedly arranged", "arranged", "connected", "connected" should be understood in a broad sense, for example, "arranged" can be fixedly connected, can also be detachably connected, or integrally connected; "connected" can be mechanical connection, can also be electrical connection; "connected" can be directly connected, can also be indirectly connected through an intermediate medium, or can be the communication between two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0042] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vacuum high-temperature brazing furnace for graphite column production, characterized by, Include: The furnace body (1), the furnace door (2) is arranged on the furnace body (1), the heating jacket (12) is installed in the furnace body (1), the cooling jacket (13) is arranged between the furnace body (1) and the heating jacket (12), the heating chamber (14) is separated by the heating jacket (12) in the furnace body (1); The fixed frame (16) is fixedly connected to the furnace door (2), the fixed frame (16) is provided with a placing table (15) above, the fixed frame (16) is provided with a lifting assembly for lifting the placing table (15); The base (3) is arranged below the furnace body (1), the fixed seat (4) is installed on the base (3), and the furnace body (1) is fixedly connected to the fixed seat (4), the vacuum pump (11) is also installed on the base (3), and the input end of the vacuum pump (11) is installed on the furnace body (1); The moving assembly is arranged on the base (3), which is used for moving the furnace door (2) transversely to complete the in-out of the placing table (15) in the heating chamber (14).

2. The vacuum high-temperature brazing furnace for graphite column production according to claim 1, characterized in that: The lifting assembly comprises a bidirectional screw rod (17) rotatably connected in the fixed frame (16), both ends of the bidirectional screw rod (17) are threadedly connected with a sliding block (18), the sliding block (18) is hingedly connected with a hinge rod (20), one end of the hinge rod (20) away from the sliding block (18) is hingedly connected with a hinge seat (19), and the hinge seat (19) is fixedly connected to the placing table (15).

3. The vacuum high-temperature brazing furnace for graphite column production according to claim 2, characterized in that: The bidirectional screw rod (17) is fixedly connected with a limiting gear (23) and a twisting block (27), the fixed frame (16) is fixedly connected with an adjusting seat (25), the adjusting seat (25) is threadedly connected with a limiting screw rod (26), and one end of the limiting screw rod (26) is inserted into the limiting gear (23).

4. The vacuum high-temperature brazing furnace for graphite column production according to claim 1, characterized in that: The bottom surface of the fixed frame (16) is provided with two groups of supporting wheels (24), and the supporting wheels (24) roll on the heating jacket (12).

5. The vacuum high-temperature brazing furnace for graphite column production according to claim 1, characterized in that: The upper surface of the fixed frame (16) is fixedly connected with two groups of spring telescopic rods (22), and the telescopic ends of the spring telescopic rods (22) are fixedly connected to the placing table (15).

6. The vacuum high-temperature brazing furnace for graphite column production according to claim 1, characterized in that: The placing table (15) is provided with a slot (21).

7. The vacuum high temperature brazing furnace for graphite column production according to claim 1, characterized in that: The moving assembly comprises a first motor (5) installed on the base (3), the base (3) is provided with a moving groove (6), the output shaft of the first motor (5) is provided with a one-way screw rod (7), the one-way screw rod (7) is rotatably connected in the moving groove (6), the one-way screw rod (7) is threadedly connected with a moving block (8), and one end of the moving block (8) is fixedly connected to the furnace door (2).

8. The vacuum high temperature brazing furnace for graphite column production according to claim 1, characterized in that: The fixed seat (4) is slidably connected with two guide rods (10), both the guide rods (10) are fixedly connected with guide blocks (9), and one end of the guide block (9) is fixedly connected to the furnace door (2).

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