CN215668114U - Vertical furnace lower cover structure for heat treatment and vertical vacuum furnace - Google Patents
Vertical furnace lower cover structure for heat treatment and vertical vacuum furnace Download PDFInfo
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- CN215668114U CN215668114U CN202121786579.0U CN202121786579U CN215668114U CN 215668114 U CN215668114 U CN 215668114U CN 202121786579 U CN202121786579 U CN 202121786579U CN 215668114 U CN215668114 U CN 215668114U
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Abstract
The utility model provides a lower cover structure of a vertical furnace for heat treatment and a vertical vacuum furnace, and relates to the technical field of heat treatment equipment. The lower cover structure of the vertical furnace for heat treatment comprises a lower furnace cover, a rotary power piece, a lower cover heat preservation assembly and a material platform supporting piece; the rotary power piece is arranged on the outer wall of the lower furnace cover; the lower furnace cover is hermetically inserted with a rotatable rotating shaft, the end part of the rotating shaft positioned outside the lower furnace cover is in transmission connection with a rotating power piece, the other end of the rotating shaft is fixedly connected with a material platform supporting piece, and a lower cover heat preservation assembly is arranged on the rotating shaft. The vertical vacuum furnace comprises a furnace body, a furnace body heat preservation combination, a cooling assembly and a vertical furnace lower cover structure for heat treatment; the furnace body heat-preservation combination and the cooling assembly are arranged in the furnace body; the cooling component is positioned outside the furnace body heat-preservation combination; the lower cover structure of the vertical furnace for heat treatment is connected with the furnace body, and the lower cover heat-insulating assembly can be hermetically connected with the furnace body heat-insulating assembly. The technical effect of large deformation of the workpiece is achieved.
Description
Technical Field
The utility model relates to the technical field of heat treatment equipment, in particular to a vertical furnace lower cover structure for heat treatment and a vertical vacuum furnace.
Background
The vacuum heat treatment technology is a novel heat treatment technology which is struggled with the development of national defense advanced industry, precision machinery manufacturing industry and the like. In particular, in the present year, the improvement of the requirements on the performance and the precision of parts leads the vacuum heat treatment technology to be increasingly emphasized, and the vacuum heat treatment technology is not only used for the heat treatment of active and refractory metals, but also gradually popularized in various fields of annealing, quenching, tempering, carburizing, nitriding, metal infiltration and the like of steel materials. The vacuum heat treatment workpiece has the advantages of no oxidation and no decarbonization, bright and original surface, no deformation, high wear resistance, long service life, no pollution, no public nuisance, high automation, etc.
Customers mostly select a vertical vacuum heat treatment furnace, which has higher requirements on the deformation of products in the circumferential direction in the heat treatment process, and the common vertical vacuum heat treatment furnace in the current market adopts a traditional bottom charging structure, so that the requirements of the customers are met to a certain extent, but the production requirements of the customer products with smaller deformation are difficult to meet.
Therefore, it is an important technical problem to be solved by those skilled in the art to provide a vertical furnace lower cover structure for heat treatment and a vertical vacuum furnace, which are convenient for charging products.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a lower cover structure of a vertical furnace for heat treatment and a vertical vacuum furnace, which are used for relieving the technical problem of large deformation of products in the prior art.
In a first aspect, an embodiment of the present invention provides a lower cover structure of a vertical furnace for heat treatment, including a lower cover, a rotary power component, a lower cover heat preservation component, and a material table support component;
the rotary power part is arranged on the outer wall of the lower furnace cover;
the rotary furnace comprises a lower furnace cover, a rotary power piece, a rotary table support piece, a lower furnace cover and a lower cover heat insulation assembly, wherein the rotary shaft is inserted in the lower furnace cover in a sealing mode, the end portion, located outside the lower furnace cover, of the rotary shaft is in transmission connection with the rotary power piece, the other end of the rotary shaft is fixedly connected with the material table support piece, and the lower cover heat insulation assembly is arranged on the rotary shaft.
With reference to the first aspect, an embodiment of the present invention provides a possible implementation manner of the first aspect, wherein a rotary supporting platform is fixedly disposed on the rotary shaft;
and a plurality of auxiliary supporting rods for supporting the material platform supporting piece are arranged on the rotary supporting platform.
With reference to the first aspect, an embodiment of the present invention provides a possible implementation manner of the first aspect, wherein the plurality of auxiliary supporting rods are uniformly distributed on the rotary supporting platform with the rotating shaft as a rotating center.
With reference to the first aspect, an embodiment of the present invention provides a possible implementation manner of the first aspect, wherein a plurality of auxiliary supporting seats for supporting the rotary supporting platform are disposed on an inner wall of the lower furnace cover;
the top of the auxiliary supporting seat is provided with a universal ball which is abutted against the rotary supporting platform.
With reference to the first aspect, an embodiment of the present invention provides a possible implementation manner of the first aspect, wherein the lower cover heat preservation assembly includes a lower cover fixed heat preservation combination and a lower cover movable heat preservation combination;
the lower cover fixing and heat-preserving combination is arranged on the inner wall of the lower furnace cover through a support rod;
the lower cover movable heat-insulation combination is fixedly arranged on the rotating shaft and is positioned between the material platform supporting piece and the rotating supporting platform;
the lower cover fixed heat-insulation combination and the lower cover movable heat-insulation combination can be in sealing connection.
With reference to the first aspect, an embodiment of the present invention provides a possible implementation manner of the first aspect, wherein a plurality of supporting cylinders are disposed on the rotary supporting platform, and the supporting cylinders are sleeved on both the rotary shaft and the auxiliary supporting rod;
a plurality of supporting cylinders are provided with supporting plates, and the lower cover is movably arranged on the supporting plates in a heat-preservation combination manner.
With reference to the first aspect, an embodiment of the present invention provides a possible implementation manner of the first aspect, wherein a mounting hole for mounting the rotating shaft is formed in the lower furnace cover, a bearing seat is disposed in the mounting hole, and a bearing is disposed in the bearing seat.
With reference to the first aspect, an embodiment of the present invention provides a possible implementation manner of the first aspect, wherein an oil seal seat is disposed at one end, located on an outer wall of the lower furnace cover, of the bearing seat;
a framework oil seal is arranged in the oil seal seat;
and an oil seal gland is arranged on the oil seal seat.
In a second aspect, an embodiment of the present invention provides a vertical vacuum furnace, including a furnace body, a furnace body heat preservation assembly, a cooling assembly, and a vertical furnace lower cover structure for heat treatment;
the furnace body heat-preservation combination and the cooling assembly are both arranged in the furnace body;
the cooling assembly is positioned outside the furnace body heat-preservation combination;
the lower cover structure of the vertical furnace for heat treatment is connected with the furnace body, and the lower cover heat-insulating assembly can be hermetically connected with the furnace body heat-insulating assembly.
In combination with the second aspect, embodiments of the present invention provide a possible implementation manner of the second aspect, wherein the cooling assembly includes a plurality of ventilation ducts and a plurality of nozzles;
each ventilating pipeline is provided with a plurality of nozzles, and the air injection ends of the nozzles are inserted in the furnace body heat-insulation combination, so that cooling air can enter the furnace body heat-insulation combination.
Has the advantages that:
the embodiment of the utility model provides a lower cover structure of a vertical furnace for heat treatment, which comprises a lower cover, a rotary power piece, a lower cover heat-preservation assembly and a material platform supporting piece, wherein the lower cover is provided with a plurality of grooves; the rotary power piece is arranged on the outer wall of the lower furnace cover; the lower furnace cover is hermetically inserted with a rotatable rotating shaft, the end part of the rotating shaft positioned outside the lower furnace cover is in transmission connection with a rotating power piece, the other end of the rotating shaft is fixedly connected with a material platform supporting piece, and a lower cover heat preservation assembly is arranged on the rotating shaft.
When the furnace cover is used specifically, a worker descends the furnace cover to separate the lower furnace cover from a furnace body of the vertical vacuum furnace, when the lower furnace cover descends, the rotating shaft arranged on the lower furnace cover can drive the material platform supporting piece arranged on the rotating shaft to descend, so that the worker can conveniently unload and load materials, after the materials are loaded, the lower furnace cover ascends and is connected with the furnace body of the vertical vacuum furnace, the lower cover heat-insulation component arranged on the rotating shaft can be connected with the furnace body heat-insulation component in the furnace body of the vertical vacuum furnace, then heat treatment is started, and in the heat treatment process, the rotating power piece can drive the rotating shaft to rotate, so that the material platform supporting piece is driven to rotate along with the rotating shaft, workpieces on the material platform supporting piece can be uniformly heated, and the quality of the workpieces is improved; and then in a cooling link after the heat treatment is finished, the material platform supporting piece is driven to rotate through rotating, so that the workpiece on the material platform supporting piece is cooled comprehensively and uniformly, the deformation of the workpiece after the heat treatment is reduced, and the quality of the product is improved.
The embodiment of the utility model provides a vertical vacuum furnace, which comprises a furnace body, a furnace body heat-preservation combination, a cooling assembly and a vertical furnace lower cover structure for heat treatment; the furnace body heat-preservation combination and the cooling assembly are arranged in the furnace body; the cooling component is positioned outside the furnace body heat-preservation combination; the lower cover structure of the vertical furnace for heat treatment is connected with the furnace body, and the lower cover heat-insulating assembly can be hermetically connected with the furnace body heat-insulating assembly. The vertical vacuum furnace has the advantages compared with the prior art, and the detailed description is omitted.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a partial schematic view of a first angular cross-section of a lower cover structure of a vertical furnace for heat treatment according to an embodiment of the present invention;
FIG. 2 is a partial schematic view of a second cross-sectional view of a lower cover structure of a vertical furnace for heat treatment according to an embodiment of the present invention;
fig. 3 is a schematic view illustrating a connection between a lower cover structure of a vertical furnace for heat treatment and a furnace body according to an embodiment of the present invention.
Icon:
100-lower furnace cover; 110-auxiliary support seat; 111-a gimbaled ball; 120-a bearing seat; 130-a bearing; 140-oil seal seat; 150-framework oil seal; 160-oil seal gland;
200-a rotary power member;
300-lower cover heat preservation component; 310-fixing and heat-preserving combination of a lower cover; 311-strut; 320-lower cover movable heat preservation combination;
400-a material table support;
500-rotation axis; 510-rotating the support platform; 511-auxiliary support bar; 512-a support cylinder; 513-a support plate;
600-furnace body; 610-furnace body heat preservation combination;
700-a cooling assembly; 710-a ventilation duct; 720-nozzle.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The present invention will be described in further detail below with reference to specific embodiments and with reference to the attached drawings.
Referring to fig. 1, 2 and 3, an embodiment of the present invention provides a lower cover structure of a vertical furnace for heat treatment, including a lower cover 100, a rotary power member 200, a lower cover heat-insulating assembly 300 and a material table support 400; the rotary power member 200 is arranged on the outer wall of the lower furnace cover 100; a rotatable rotating shaft 500 is hermetically inserted into the lower furnace cover 100, the end of the rotating shaft 500 located outside the lower furnace cover 100 is in transmission connection with the rotating power member 200, the other end of the rotating shaft 500 is fixedly connected with the material table supporting member 400, and the lower cover heat preservation assembly 300 is arranged on the rotating shaft 500.
When the furnace cover 100 is used specifically, a worker lowers the furnace cover 100 to separate the lower furnace cover 100 from the furnace body 600 of the vertical vacuum furnace, when the lower furnace cover 100 is lowered, the rotating shaft 500 arranged on the lower furnace cover 100 can drive the material platform supporting piece 400 arranged on the rotating shaft 500 to descend, so that the worker can conveniently carry out blanking and feeding, after the feeding is completed, the lower furnace cover 100 is raised and connected with the furnace body 600 of the vertical vacuum furnace, the lower cover heat-insulating assembly 300 arranged on the rotating shaft 500 can be connected with the furnace body 600 heat-insulating assembly in the furnace body 600 of the vertical vacuum furnace, then the heat treatment is started, and in the heat treatment process, the rotating power piece 200 can drive the rotating shaft 500 to rotate, so that the material platform supporting piece 400 is driven to rotate along with the rotating shaft 500, the workpieces on the material platform supporting piece 400 can be uniformly heated, and the quality of the workpieces is improved; then in a cooling link after the heat treatment is finished, the material table supporting piece 400 is driven to rotate through rotation, so that the workpiece on the material table supporting piece 400 is cooled comprehensively and uniformly, the deformation of the workpiece after the heat treatment is reduced, and the quality of the product is improved.
Specifically, the rotating shaft 500 is rotatably disposed on the lower furnace cover 100, one end of the rotating shaft 500 is located inside the lower furnace cover 100, the other end of the rotating shaft 500 is located outside the lower furnace cover 100, and one end of the rotating shaft 500 located outside the lower furnace cover 100 is in transmission connection with the rotating power member 200, so that the rotating shaft 500 can be driven to rotate by the rotating power member 200, wherein the rotating power member 200 can be connected with the rotating shaft 500 by a belt.
Wherein, a lower cover heat preservation assembly 300 is arranged on the rotating shaft 500, when the lower cover 100 is connected with the furnace body 600 of the vertical vacuum furnace, the lower cover heat preservation assembly 300 can be hermetically connected with a furnace body heat preservation assembly 610 in the furnace body 600, thereby ensuring that the product can be subjected to heat treatment.
It should be noted that the material table support 400 may be a material table support pallet.
Referring to fig. 1, 2 and 3, in an alternative of the present embodiment, a rotary supporting platform 510 is fixedly disposed on the rotary shaft 500; the rotary supporting platform 510 is provided with a plurality of auxiliary supporting rods 511 for supporting the material table supporting member 400.
Specifically, the rotary supporting platform 510 is fixedly arranged on the rotary shaft 500, the auxiliary supporting rods 511 are arranged on the rotary supporting platform 510, the material table supporting member 400 is supported in an auxiliary manner through the auxiliary supporting rods 511, the material table supporting member 400 is prevented from inclining, and the workpiece arranged on the material table supporting member 400 can be subjected to heat treatment normally.
Referring to fig. 1, 2 and 3, in an alternative of the present embodiment, a plurality of auxiliary support bars 511 are uniformly distributed on a rotary support platform 510 with a rotary shaft 500 as a rotation center.
Specifically, a plurality of auxiliary supporting rods 511 are uniformly arranged on the rotary supporting platform 510 by taking the rotary shaft 500 as a rotary center, so that the material table supporting piece 400 can be effectively supported, and the phenomenon that the material table supporting piece 400 inclines is avoided.
Referring to fig. 1, 2 and 3, in an alternative of the present embodiment, the inner wall of the lower furnace cover 100 is provided with a plurality of auxiliary supporting seats 110 for supporting the rotary supporting platform 510; the top of the auxiliary support base 110 is provided with a universal ball 111 abutting against the rotary support platform 510.
Specifically, a plurality of auxiliary supporting seats 110 are arranged on the inner wall of the lower furnace cover 100, and universal balls 111 are arranged on the tops of the plurality of auxiliary supporting seats 110, and the universal balls 111 can abut against the rotary supporting platform 510, so that the auxiliary supporting seats 110 support the rotary supporting platform 510; and through the arrangement of the universal ball 111, the auxiliary supporting seat 110 can be fixedly arranged on the inner closure of the lower furnace cover 100 without influencing the rotation of the rotary supporting platform 510.
Referring to fig. 1, 2 and 3, in an alternative embodiment of the present invention, a lower cover insulation assembly 300 includes a lower cover fixed insulation assembly 310 and a lower cover movable insulation assembly 320; the lower cover fixing and heat preserving combination 310 is arranged on the inner wall of the lower furnace cover 100 through a support rod 311; the lower cover movable heat preservation assembly 320 is fixedly arranged on the rotating shaft 500, and the lower cover movable heat preservation assembly 320 is positioned between the material table supporting piece 400 and the rotating supporting platform 510; the lower cover fixed heat-preservation combination 310 and the lower cover movable heat-preservation combination 320 can be connected in a sealing mode.
Specifically, the lower cover fixing and heat preserving assembly 310 is disposed on the inner wall of the lower cover 100 through the support rod 311, and when the lower cover 100 is closed, that is, the lower cover 100 is connected to the furnace body 600 of the vacuum furnace, the lower cover fixing and heat preserving assembly 310 can be hermetically connected to the furnace body heat preserving assembly 610 in the furnace body 600.
Specifically, the lower cover movable heat preservation assembly 320 is arranged on the rotating shaft 500, and the lower cover movable heat preservation assembly 320 is located between the material platform supporting member 400 and the rotating supporting platform 510, so that when the lower cover 100 is connected with the furnace body 600 of the vacuum furnace, the lower cover movable heat preservation assembly 320 can be connected with the furnace body heat preservation assembly 610 in the furnace body 600 in a sealing manner.
Referring to fig. 1, 2 and 3, in an alternative of the present embodiment, a plurality of support cylinders 512 are disposed on the rotary support platform 510, and the support cylinders 512 are sleeved on both the rotary shaft 500 and the auxiliary support rod 511; a supporting plate 513 is arranged on the plurality of supporting drums 512, and the lower cover movable heat preservation combination 320 is arranged on the supporting plate 513.
Specifically, a plurality of supporting cylinders 512 are arranged on the rotary supporting platform 510, the supporting cylinders 512 are sleeved on the rotary shaft 500 and the auxiliary supporting rods 511, supporting plates 513 are arranged on the tops of the supporting sleeves, and the supporting plates 513 can support the lower cover movable heat preservation assembly 320.
Wherein, the heat leakage from the gap between the rotating shaft 500 and the auxiliary support rod 511 and the lower cover movable heat insulation assembly 320 can be reduced by the arrangement of the support cylinder 512.
Referring to fig. 1, 2 and 3, in an alternative of this embodiment, a mounting hole for mounting a rotating shaft 500 is formed in the lower furnace cover 100, a bearing seat 120 is disposed in the mounting hole, and a bearing 130 is disposed in the bearing seat 120.
Specifically, a mounting hole is formed in the lower furnace cover 100, a bearing seat 120 is disposed in the mounting hole, and the rotating shaft 500 is disposed in the bearing seat 120, so that the rotational lubrication degree of the rotating shaft 500 is improved. And improves the sealing performance between the rotary shaft 500 and the cover.
Wherein, a sealing ring is arranged between the bearing seat 120 and the lower furnace cover 100.
Referring to fig. 1, 2 and 3, in an alternative of the present embodiment, an oil seal seat 140 is disposed at one end of the bearing seat 120, which is located on the outer wall of the lower furnace cover 100; a framework oil seal 150 is arranged in the oil seal seat 140; the oil seal base 140 is provided with an oil seal cover 160.
Specifically, the sealing connection between the bearing housing 120 and the rotating shaft 500 is achieved by the oil seal housing 140, the skeleton oil seal 150, and the oil seal cover 160.
Referring to fig. 1, 2 and 3, the present embodiment provides a vertical vacuum furnace, which includes a furnace body 600, a furnace body heat-preserving assembly 610, a cooling assembly 700 and a vertical furnace lower cover structure for heat treatment; the furnace body heat preservation combination 610 and the cooling assembly 700 are both arranged in the furnace body 600; the cooling assembly 700 is positioned outside the furnace body heat-preserving combination 610; the lower cover structure of the vertical furnace for heat treatment is connected with the furnace body 600, and the lower cover heat-insulating assembly 300 can be hermetically connected with the furnace body heat-insulating assembly 610.
Specifically, when the lower furnace cover 100 is closed, the lower cover heat preservation assembly 300 disposed on the lower furnace cover 100 can be hermetically connected with the furnace body heat preservation assembly 610, thereby reducing the amount of heat leakage of the furnace body 600.
Wherein, cool off the work piece in furnace body heat preservation combination 610 through cooling assembly 700 to in the cooling process, rotatory power spare 200 can drive material platform support piece 400 and rotate, improves the quality after the work piece cooling, reduces the deflection.
In addition, the vertical vacuum furnace has the advantages of the structure of the lower cover of the vertical furnace for heat treatment compared with the prior art, and the details are not repeated herein.
Referring to fig. 1, 2 and 3, in an alternative to the present embodiment, a cooling assembly 700 includes a plurality of ventilation ducts 710 and a plurality of nozzles 720; each ventilating duct 710 is provided with a plurality of nozzles 720, and the air injection ends of the nozzles 720 are inserted into the furnace body heat-insulating combination 610, so that cooling air can enter the furnace body heat-insulating combination 610.
Specifically, the ventilation pipeline is arranged outside the furnace body heat preservation combination 610, and the plurality of nozzles 720 communicated with the ventilation pipeline 710 are inserted into the furnace body heat preservation combination 610, so that cooling wind in the ventilation pipeline 710 can be blown into the furnace body heat preservation combination 610 and can cool the workpiece.
Specifically, in the heating process: after the product enters the furnace body 600 to carry out the heat treatment temperature rise process, the product keeps integral rotation in a hot zone while the multi-zone temperature control is adopted, so that the product has better heating uniformity in the whole process; during the cooling process: the cooling air flow jetted through the nozzles 720 arranged in the circumferential direction in the furnace body 600 is matched with the rotation of the product body inside the apparatus, so that the product has excellent cooling uniformity in the cooling process.
Specifically, through the arrangement, the furnace charging condition which is variable when the vertical vacuum furnace is used can be well met. Can meet the high requirement of low deformation after the heat treatment of the product is finished. The stability of the properties of the discharged product is ensured, the effective charging amount is increased, and the working efficiency is improved.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A lower cover structure of a vertical furnace for heat treatment is characterized by comprising: the furnace comprises a lower furnace cover (100), a rotary power part (200), a lower cover heat preservation component (300) and a material platform supporting part (400);
the rotary power part (200) is arranged on the outer wall of the lower furnace cover (100);
a rotatable rotating shaft (500) is inserted in the lower furnace cover (100) in a sealing mode, the end portion, located outside the lower furnace cover (100), of the rotating shaft (500) is in transmission connection with the rotating power piece (200), the other end of the rotating shaft (500) is fixedly connected with the material platform supporting piece (400), and the lower cover heat preservation assembly (300) is arranged on the rotating shaft (500).
2. The lower cover structure of the vertical furnace for heat treatment according to claim 1, wherein a rotary support platform (510) is fixedly provided on the rotary shaft (500);
the rotary supporting platform (510) is provided with a plurality of auxiliary supporting rods (511) for supporting the material platform supporting piece (400).
3. The vertical furnace lower cover structure for heat treatment according to claim 2, wherein a plurality of the auxiliary support bars (511) are uniformly distributed on the rotary support platform (510) with the rotary shaft (500) as a rotation center.
4. The lower cover structure of the vertical furnace for heat treatment as claimed in claim 2, wherein the inner wall of the lower cover (100) is provided with a plurality of auxiliary supporting seats (110) for supporting the rotary supporting platform (510);
the top of the auxiliary supporting seat (110) is provided with a universal ball (111) which is abutted against the rotary supporting platform (510).
5. The lower cover structure of the vertical furnace for heat treatment according to claim 2, wherein the lower cover insulation assembly (300) comprises a lower cover fixed insulation assembly (310) and a lower cover movable insulation assembly (320);
the lower cover fixing and heat-preserving combination (310) is arranged on the inner wall of the lower cover (100) through a support rod (311);
the lower cover movable heat-insulation combination (320) is fixedly arranged on the rotating shaft (500), and the lower cover movable heat-insulation combination (320) is positioned between the material platform support (400) and the rotating support platform (510);
the lower cover fixed heat-preservation combination (310) and the lower cover movable heat-preservation combination (320) can be connected in a sealing mode.
6. The vertical furnace lower cover structure for heat treatment according to claim 5, wherein a plurality of support cylinders (512) are provided on the rotary support platform (510), the support cylinders (512) being sleeved on both the rotary shaft (500) and the auxiliary support rod (511);
a supporting plate (513) is arranged on the plurality of supporting drums (512), and the lower cover movable heat preservation combination (320) is arranged on the supporting plate (513).
7. The vertical furnace lower cover structure for heat treatment according to any one of claims 1 to 6, wherein the lower cover (100) is provided with a mounting hole for mounting the rotating shaft (500), a bearing seat (120) is arranged in the mounting hole, and a bearing (130) is arranged in the bearing seat (120).
8. The lower cover structure of the vertical furnace for heat treatment as claimed in claim 7, wherein an oil seal seat (140) is provided at one end of the bearing seat (120) located at the outer wall of the lower cover (100);
a framework oil seal (150) is arranged in the oil seal seat (140);
an oil seal gland (160) is arranged on the oil seal seat (140).
9. A vertical vacuum furnace, characterized by comprising a furnace body (600), a furnace body heat preservation combination (610), a cooling assembly (700) and a lower cover structure of the vertical furnace for heat treatment according to any one of claims 1 to 8;
the furnace body heat-preserving combination (610) and the cooling assembly (700) are both arranged in the furnace body (600);
the cooling assembly (700) is positioned outside the furnace body heat-preserving combination (610);
the lower cover structure of the vertical furnace for heat treatment is connected with the furnace body (600), and the lower cover heat-insulating assembly (300) can be hermetically connected with the furnace body heat-insulating assembly (610).
10. The vertical vacuum furnace according to claim 9, characterized in that the cooling assembly (700) comprises a plurality of ventilation ducts (710) and a plurality of nozzles (720);
each ventilation pipeline (710) is provided with a plurality of nozzles (720), and the air injection ends of the nozzles (720) are inserted into the furnace body heat-insulating combination (610) so that cooling air can enter the furnace body heat-insulating combination (610).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121786579.0U CN215668114U (en) | 2021-08-02 | 2021-08-02 | Vertical furnace lower cover structure for heat treatment and vertical vacuum furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121786579.0U CN215668114U (en) | 2021-08-02 | 2021-08-02 | Vertical furnace lower cover structure for heat treatment and vertical vacuum furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215668114U true CN215668114U (en) | 2022-01-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121786579.0U Active CN215668114U (en) | 2021-08-02 | 2021-08-02 | Vertical furnace lower cover structure for heat treatment and vertical vacuum furnace |
Country Status (1)
| Country | Link |
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| CN (1) | CN215668114U (en) |
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2021
- 2021-08-02 CN CN202121786579.0U patent/CN215668114U/en active Active
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