CN210036244U - Vacuum induction furnace for preparing airplane brake disc - Google Patents
Vacuum induction furnace for preparing airplane brake disc Download PDFInfo
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- CN210036244U CN210036244U CN201920554128.0U CN201920554128U CN210036244U CN 210036244 U CN210036244 U CN 210036244U CN 201920554128 U CN201920554128 U CN 201920554128U CN 210036244 U CN210036244 U CN 210036244U
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Abstract
A vacuum induction furnace for preparing an airplane brake disc is characterized in that a carbon felt is placed on the upper surface of a material seat bottom plate. A plurality of fan-shaped block-shaped material seat cushion bricks are uniformly distributed on the upper surface of the carbon felt. The material seat cushion brick heat preservation felt is arranged on the upper surface of the material seat cushion brick. The graphite tray is arranged on the upper surface of the material seat cushion brick heat preservation felt. The upper ends of 3-6 heating element graphite pillars are arranged in heating element graphite pillar holes on the heating element pad brick heat preservation felt, and the lower ends of the heating element graphite pillars are arranged on the upper surface of the heating element bottom plate after penetrating through gaps among the heating element pad bricks. The lower ends of 3-6 tray graphite pillars penetrate through gaps among the material seat cushion bricks, are respectively arranged in pillar holes uniformly distributed on a carbon felt and are arranged on the material seat low plate, and the upper ends of the 3-6 tray graphite pillars penetrate through the pillar holes uniformly distributed on the material seat cushion brick heat insulation felt. The utility model discloses a slope of graphite heat-generating body and graphite charging tray is avoided to charging tray graphite pillar and heat-generating body graphite pillar, has increased the stability of heat-generating body and charging tray in the vacuum induction furnace.
Description
Technical Field
The invention relates to the field of aircraft brake disc manufacturing, in particular to a vacuum induction furnace capable of improving the stability of a charging tray and a heating body in a furnace body of the vacuum induction furnace.
Background
The heating element of the vacuum induction furnace is made of graphite materials, the graphite heating element is generally placed on a soft heat-preservation carbon felt in order to improve the heat preservation performance, and the graphite heating element is easy to incline after being used for a period of time, so that the contact short circuit between the heat-preservation felt on the outer layer of the heating element and an induction coil is caused to strike fire, and the fault of a medium-frequency power supply is caused. In addition, the graphite has low strength and is easy to break, some processes need to go deep into the graphite heating element from the side surface of the furnace body for temperature measurement, and if the heating element pad brick heat preservation felt sinks, the thermocouple can be broken at the graphite heating element; similarly, the charging tray is also placed on the soft carbon felt, and the inclination of the heat preservation felt or the unbalanced charging can also cause the inclination of the charging tray, so that the side fall of the product is caused. Based on the defects of the material seat and the heat-generating body cushion brick heat-insulating felt, a certain unit generates phenomena of contact short circuit ignition between the heat-generating body outer-layer heat-insulating felt and the induction coil, even breakdown of the induction coil, product inclination in the process of discharging and the like all year round. If the atmosphere with corrosion to the heat preservation felt is treated in the furnace, the heat preservation felt of the heating element pad brick and the heat preservation felt of the material seat pad brick are corroded, so that the heating element is overhead or collapsed, and the product is toppled over; meanwhile, the temperature deviation of the temperature zone is increased, the temperature leaks out, and corresponding parts are burnt out. Domestic same-row production enterprises all appear crossing the heat-generating body and empty or even can't fall the phenomenon that the charging tray got the material.
The patent documents and the thesis databases at home and abroad are searched, and the prior art closest to the invention is not found.
Disclosure of Invention
In order to overcome the defect that a charging tray and a heating body in a furnace body of a vacuum induction furnace are easy to incline in the prior art, the invention provides the vacuum induction furnace for preparing an airplane brake disc.
The invention comprises a material seat bottom plate, a carbon felt, a material seat cushion brick, a heating element bottom plate, a heating element cushion brick heat preservation felt, a material seat cushion brick heat preservation felt, a graphite tray, a heating element and a furnace body shell. Wherein, the carbon felt is arranged on the upper surface of the material seat bottom plate. And a plurality of fan-shaped block-shaped material seat cushion bricks are uniformly distributed on the upper surface of the carbon felt. The material seat cushion brick heat preservation felt is arranged on the upper surface of the material seat cushion brick. The graphite tray is placed on the upper surface of the material seat cushion brick heat preservation felt. A material base bottom plate sealing rubber ring is arranged in the sealing groove of the material base bottom plate; the carbon felt, the material seat cushion brick, the heating body cushion brick heat preservation felt, the material seat cushion brick heat preservation felt, the graphite tray and the heating body are all located in the furnace body shell, and the lower end of the furnace body shell is fixed on the upper surface of the heating body bottom plate.
It is characterized by also comprising a tray graphite support and a heating element graphite support;
3-6 charging tray graphite pillars are arranged; the lower ends of the charging tray graphite pillars penetrate through gaps among the charging seat cushion bricks, are respectively loaded into pillar holes uniformly distributed on a carbon felt, and are placed on the charging seat low plate; the upper end of each tray graphite pillar respectively penetrates through each pillar hole uniformly distributed on the material seat cushion brick heat preservation felt;
3-6 heating element graphite pillars are provided; the upper end of the heating element graphite strut is arranged in heating element graphite strut holes uniformly distributed on the heating element pad brick heat preservation felt, and the upper end surface of the heating element graphite strut is flush with the upper surface of the heating element pad brick heat preservation felt; the lower end of the graphite support post of the heating body passes through the gaps among the backing bricks of the heating body, and the lower end surface of the graphite support post is placed on the upper surface of the bottom plate of the heating body.
The heating element is arranged on the upper end surface of the heating element graphite pillar.
The length of each tray graphite pillar is equal to the sum of the heights of the carbon felt, the material seat cushion brick and the material seat cushion brick heat-insulating felt. The diameter of the tray graphite support is 30-50 mm.
The length of the heating element graphite pillar is equal to the sum of the height of the heating element pad brick and the height of the heating element pad brick heat preservation felt. The diameter of the graphite support column of the heating element is t +10mm, wherein t is the thickness of the heating element.
3-6 axial charging tray graphite strut mounting holes are uniformly distributed on the charging tray pad brick heat-insulating felt, and the aperture of each charging tray graphite strut mounting hole is slightly smaller than the outer diameter of each charging tray graphite strut, so that the charging tray graphite strut and the charging tray graphite strut are tightly matched. The central line of the charging tray graphite strut mounting hole is parallel to the central line of the material seat cushion brick heat preservation felt.
3 ~ 6 axial charging tray graphite pillar mounting holes are evenly distributed on the carbon felt to the aperture of each charging tray graphite pillar mounting hole slightly is less than the external diameter of charging tray graphite pillar makes closely cooperation between the two. The center line of the tray graphite strut mounting hole is parallel to the center line of the carbon felt.
The heating element brick pad heat preservation felt inner edge department equipartition has 3 ~ 6 axial heating element graphite pillar mounting holes to the aperture of each heating element graphite pillar mounting hole slightly is less than the external diameter of heating element graphite pillar makes closely cooperate between the two. The central line of the heating element graphite pillar mounting hole is parallel to the central line of the heating element pad brick heat preservation felt.
The invention adopts the mode that the backing bricks are arranged at intervals and the graphite columns are uniformly supported, so as to solve the problem that a charging tray and a heating body in the furnace body of the vacuum induction furnace are easy to incline.
Compared with the prior art, the invention has the following advantages:
1. the graphite pillars of the heating body base are uniformly distributed among the cushion bricks on the heating body base, the height of the graphite pillars is equal to the sum of the base and the heat preservation felt, the graphite heating body is supported, and the graphite heating body is prevented from being placed on the heat preservation felt to incline;
2. even if the heat preservation felt on the heating body base is pulverized and the edge is deformed, the graphite column on the heating body base can effectively support the heating body, and the heating body cannot be overhead and collapsed.
3. For the process of measuring temperature from the side surface of the furnace body, the graphite pillar of the heating element can effectively avoid the phenomenon that the thermal insulation felt of the base of the heating element sinks to cause the breakage of the thermocouple.
4. The graphite pillars of the charging tray are uniformly distributed between the charging seat cushion bricks, the height of the graphite pillars is equal to the sum of the cushion bricks and the heat preservation felt, the graphite charging tray is supported, the charging tray is prevented from being directly placed on the soft carbon felt, and the product is prevented from inclining.
Drawings
Fig. 1 is a schematic view of a conventional structure.
Fig. 2 is a schematic structural diagram of the present invention.
Fig. 3 is a schematic view of a material seat cushion brick structure.
FIG. 4 is a schematic view of a heating element base brick pad structure.
In the figure:
1. a base plate of the material seat; 2. a carbon felt; 3. material seat cushion bricks; 4. a heating element bottom plate; 5. a heating element pad brick; 6. a heating element pad brick heat preservation felt; 7. a heating element graphite support; 8. a heating element heat preservation felt; 9. a tray graphite support; 10. a material seat cushion brick heat preservation felt; 11. a graphite tray; 12. a heating element; 13. a furnace body shell; 14. a material seat bottom plate is provided with a sealing rubber ring; 15. and a heating body base sealing rubber ring.
Detailed Description
The embodiment is a vacuum induction furnace capable of improving the stability of a material tray and a heating body in a furnace body of the vacuum induction furnace. The heating device comprises a material seat bottom plate 1, a carbon felt 2, a material seat cushion brick 3, a heating body bottom plate 4, a heating body cushion brick 5, a heating body cushion brick heat preservation felt 6, a heating body graphite strut 7, a heating body heat preservation felt 8, a material tray graphite strut 9, a material seat cushion brick heat preservation felt 10, a graphite material tray 11, a heating body 12, a furnace body shell 13, a material seat bottom plate sealing rubber ring 14 and a heating body base sealing rubber ring 15.
Wherein, the carbon felt 2 is arranged on the upper surface of the material seat bottom plate 1. A plurality of material seat cushion bricks 3 are uniformly distributed on the upper surface of the carbon felt, and the outer diameter of a circle formed by the material seat cushion bricks is 20mm smaller than the inner diameter of the furnace body bottom plate 4. The material seat cushion brick heat preservation felt 10 is placed on the upper surface of the material seat cushion brick. The lower ends of the three tray graphite pillars 9 penetrate through the gaps of the material seat cushion bricks 3 and are respectively arranged in the pillar holes uniformly distributed on the carbon felt 2; the upper ends of the three tray graphite pillars respectively penetrate through pillar holes uniformly distributed on the material seat cushion brick heat-insulating felt; the length of each tray graphite pillar is equal to the sum of the heights of the carbon felt, the material seat cushion brick and the material seat cushion brick heat-insulating felt. The graphite tray 11 is placed on the upper surface of the material seat cushion brick heat preservation felt 10. A material base bottom plate sealing rubber ring 14 is arranged in the sealing groove of the material base bottom plate;
the inner diameter of the heating body bottom plate 4 is 20mm larger than the outer diameter of the material seat cushion brick heat preservation felt 10, the heating body bottom plate is fixed on the furnace body shell 13 through bolts, and the heating body bottom plate is in contact with the material seat bottom plate through a material seat bottom plate sealing rubber ring 14. The heating element pad brick 5 is placed on the upper surface of the heating element bottom plate 4, and the inner circumferential surface of the heating element pad brick is separated by 10mm from the outer arc surface of each material seat pad brick of the formed circle. The heating body pad brick heat preservation felt 6 is sleeved on the outer circumference of the material seat pad brick heat preservation felt 10, and a gap of 10mm is formed between the heating body pad brick heat preservation felt and the material seat pad brick heat preservation felt. 3-6 heating element graphite pillars are arranged, the upper ends of the heating element graphite pillars are arranged in heating element graphite pillar holes uniformly distributed on the heating element brick pad heat insulation felt 6, and the upper end surfaces of the heating element graphite pillars are flush with the upper surface of the heating element brick pad heat insulation felt; the lower end of the graphite support post of the heating body passes through the gap between the heating body cushion bricks 5, and the lower end surface of the graphite support post is placed on the upper surface of the heating body bottom plate 4. A cylindrical heating element 12 is placed on the upper surface of the heating element brick-laying heat-insulating felt 6. In this embodiment, the number of the heating element graphite support columns 7 is 3.
The heating element heat preservation felt 8 wraps the outer circumference of the heating element 12 and the outer circumference of the heating element pad brick heat preservation felt 6, and the inner circumference surface of the heating element heat preservation felt is respectively and tightly attached to the outer circumference surface of the heating element and the outer circumference surface of the heating element pad brick heat preservation felt.
The material seat bottom plate is fixed by hydraulic pressure or lifting of a screw rod.
In this embodiment, the material seat cushion brick has 3 ~ 10, all is located heating element cushion brick 5 to the equipartition lay on the circumference of carbon felt 2 upper surface. Charging tray graphite pillars 9 are arranged between two adjacent charging tray cushion bricks, and the number of the charging tray graphite pillars is determined according to the diameter of a heating body of the vacuum furnace and is 3-6. The lower end of each tray graphite pillar is arranged in a through hole on the cushion brick heat preservation felt 10; the height of the tray graphite pillar is equal to the sum of the material seat cushion brick and the material seat cushion brick heat preservation felt. In this embodiment, the number of the tray graphite pillars 9 is 3.
The material seat cushion bricks 3 are multiple, the shape of each material seat cushion brick is fan-shaped, when each material seat cushion brick is uniformly distributed on the surface of the carbon felt 2, the inner circular arc edges of each material seat cushion brick form tooling holes for inserting thermocouples and the like, and the outer diameter of the space circumference formed by the outer circular arc edges of each material seat cushion brick is smaller than the inner diameter of the heating body 12. In this embodiment, there are 5 material seat cushion bricks 3
The heating body pad bricks 5 are multiple, and the shape of each heating body pad brick is fan-shaped. When all the heating element pad bricks are uniformly distributed on the upper surface of the heating element bottom plate 4, the inner diameter of the space circumference formed by the inner arc edges of all the heating element pad bricks is 20mm smaller than the outer diameter of the space circumference formed by the outer arc edges of the material seat pad bricks 3. In this embodiment, the number of the heating element pad bricks 5 is 6. The lower end of each heating element graphite pillar 7 is arranged in a heating element graphite pillar hole on the heating element pad brick heat preservation felt 6. The length of the heating element graphite pillar is equal to the sum of the height of the heating element pad brick and the height of the heating element pad brick heat preservation felt.
The diameter of the heating element graphite support 7 is t +10mm, where t is the thickness of the heating element.
The diameter of the tray graphite support 9 is 30-50 mm.
3-6 axial charging tray graphite strut mounting holes are uniformly distributed on the charging tray pad brick heat-insulating felt 10, and the aperture of each charging tray graphite strut mounting hole is slightly smaller than the outer diameter of the charging tray graphite strut 9, so that the charging tray graphite strut and the charging tray graphite strut are tightly matched. The central line of the charging tray graphite strut mounting hole is parallel to the central line of the material seat cushion brick heat preservation felt.
3 ~ 6 axial charging tray graphite pillar mounting holes are evenly distributed on the carbon felt 2 to the aperture of each charging tray graphite pillar mounting hole slightly is less than the external diameter of charging tray graphite pillar 9 makes closely cooperate between the two. The central line of the tray graphite strut mounting hole is parallel to the central line of the carbon felt 2.
And 3-6 axial heating element graphite strut mounting holes are uniformly distributed at the inner edge of the heating element pad brick heat preservation felt 6, and the aperture of each heating element graphite strut mounting hole is slightly smaller than the outer diameter of the heating element graphite strut 7, so that the heating element graphite strut and the heating element graphite strut are tightly matched. The central line of the heating element graphite pillar mounting hole is parallel to the central line of the heating element pad brick heat preservation felt.
Claims (6)
1. A vacuum induction furnace for preparing an airplane brake disc comprises a material seat bottom plate, a carbon felt, a material seat cushion brick, a heating element bottom plate, a heating element cushion brick heat preservation felt, a material seat cushion brick heat preservation felt, a graphite tray, a heating element and a furnace body shell; wherein the carbon felt is placed on the upper surface of the material seat bottom plate; a plurality of fan-shaped block-shaped material seat cushion bricks are uniformly distributed on the upper surface of the carbon felt; the material seat cushion brick heat preservation felt is placed on the upper surface of the material seat cushion brick; the graphite tray is placed on the upper surface of the material seat cushion brick heat preservation felt; a material base bottom plate sealing rubber ring is arranged in the sealing groove of the material base bottom plate; the carbon felt, the material seat cushion brick, the heating body cushion brick heat preservation felt, the material seat cushion brick heat preservation felt, the graphite tray and the heating body are all positioned in the furnace body shell, and the lower end of the furnace body shell is fixed on the upper surface of the heating body bottom plate;
it is characterized by also comprising a tray graphite support and a heating element graphite support;
3-6 charging tray graphite pillars are arranged; the lower ends of the charging tray graphite pillars penetrate through gaps among the charging seat cushion bricks, are respectively loaded into pillar holes uniformly distributed on a carbon felt, and are placed on the charging seat low plate; the upper end of each tray graphite pillar respectively penetrates through each pillar hole uniformly distributed on the material seat cushion brick heat preservation felt;
3-6 heating element graphite pillars are provided; the upper end of the heating element graphite strut is arranged in heating element graphite strut holes uniformly distributed on the heating element pad brick heat preservation felt, and the upper end surface of the heating element graphite strut is flush with the upper surface of the heating element pad brick heat preservation felt; the lower end of the graphite strut of the heating element passes through the gap between the backing bricks of the heating element, and the lower end surface of the graphite strut is placed on the upper surface of the bottom plate of the heating element;
the heating element is arranged on the upper end surface of the heating element graphite pillar.
2. The vacuum induction furnace for preparing an aircraft brake disc according to claim 1, wherein the length of each tray graphite pillar is equal to the sum of the heights of the carbon felt, the material seat cushion brick and the material seat cushion brick heat-insulating felt; the diameter of the tray graphite support is 30-50 mm.
3. The vacuum induction furnace for preparing an aircraft brake disc as claimed in claim 1, wherein the length of the heating element graphite strut is the sum of the height of the heating element pad brick and the height of the heating element pad brick insulation blanket; the diameter of the graphite support column of the heating element is t +10mm, wherein t is the thickness of the heating element.
4. The vacuum induction furnace for preparing an aircraft brake disc as claimed in claim 1, wherein 3-6 axial tray graphite pillar mounting holes are uniformly distributed on the material seat cushion brick insulation blanket, and the aperture of each tray graphite pillar mounting hole is slightly smaller than the outer diameter of each tray graphite pillar so as to enable the tray graphite pillars and the material seat cushion brick insulation blanket to be tightly matched; the central line of the charging tray graphite strut mounting hole is parallel to the central line of the material seat cushion brick heat preservation felt.
5. The vacuum induction furnace for preparing the brake disc of the airplane as claimed in claim 1, wherein 3-6 axial tray graphite pillar mounting holes are uniformly distributed on the carbon felt, and the aperture of each tray graphite pillar mounting hole is slightly smaller than the outer diameter of each tray graphite pillar so as to enable the tray graphite pillars and the tray graphite pillars to be tightly matched; the center line of the tray graphite strut mounting hole is parallel to the center line of the carbon felt.
6. The vacuum induction furnace for preparing an aircraft brake disc as claimed in claim 1, wherein 3-6 axial heating element graphite strut mounting holes are uniformly distributed at the inner edge of the heating element pad brick heat preservation felt, and the aperture of each heating element graphite strut mounting hole is slightly smaller than the outer diameter of the heating element graphite strut, so that the heating element graphite strut mounting holes and the heating element graphite strut mounting holes are tightly matched; the central line of the heating element graphite pillar mounting hole is parallel to the central line of the heating element pad brick heat preservation felt.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920554128.0U CN210036244U (en) | 2019-04-23 | 2019-04-23 | Vacuum induction furnace for preparing airplane brake disc |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920554128.0U CN210036244U (en) | 2019-04-23 | 2019-04-23 | Vacuum induction furnace for preparing airplane brake disc |
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| CN210036244U true CN210036244U (en) | 2020-02-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110030828A (en) * | 2019-04-23 | 2019-07-19 | 西安航空制动科技有限公司 | A kind of vaccum sensitive stove |
-
2019
- 2019-04-23 CN CN201920554128.0U patent/CN210036244U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110030828A (en) * | 2019-04-23 | 2019-07-19 | 西安航空制动科技有限公司 | A kind of vaccum sensitive stove |
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