Sintering furnace for producing silicon carbide composite ceramic material

Abstract

The invention provides a sintering furnace for producing a silicon carbide composite ceramic material, and relates to the technical field of sintering forming of silicon carbide composite ceramic products. A bottom connecting base is welded to the top of the furnace base and is in a groove shape, and a supporting frame is placed on the top of the bottom connecting base. A lifting hole is formed in the top of the supporting frame, and movable supporting plates are connected into the supporting frame in an up-down arrangement mode. Connecting rods are connected to the left side and the right side of the supporting frame. After sintering processing of the silicon carbide composite ceramic product is completed, the lifting hook of the crane is connected into the lifting hole in the top of the supporting frame, the supporting frame can be directly lifted to a cooling standing area, sintering processing operation of the next batch of silicon carbide composite ceramic product can be carried out, and the sintering processing efficiency is effectively improved. The problems that an existing roasting furnace for producing the silicon carbide composite ceramic product is mostly internally provided with a fixed multi-layer design, the utilization rate of the internal space is low, the time consumed in the loading and unloading process is long, and the sintering production efficiency is high are solved.

Description

Technical Field

[0001] The invention relates to the technical field of sintering and molding of silicon carbide composite ceramic products, in particular to a sintering furnace for producing silicon carbide composite ceramic materials. Background Art

[0002] As a high-temperature treatment equipment, the roasting furnace is also called a calcining furnace. According to the different energy sources used, it can be divided into four types: coal-fired furnace, gas-fired furnace, oil-fired furnace and electric heating furnace; according to the heating method, it can be divided into two categories: direct heating and indirect heating; according to the operation mode, it can be divided into two types: continuous operation and intermittent operation. It is widely used in the sintering production of silicon carbide composite ceramic products.

[0003] Existing baking furnaces for the production of silicon carbide composite ceramic products mostly adopt a fixed multi-layer design, which has low internal space utilization and easily causes space waste, resulting in high costs for single sintering. In addition, after a single batch of silicon carbide composite ceramic products is sintered, the silicon carbide composite ceramic products need to be removed from the multiple layers in turn, and then the next batch of graphite products need to be placed in the idle multiple layers. The loading and unloading process takes a long time, which reduces the sintering production efficiency. Summary of the Invention

[0004] The present invention relates to a sintering furnace for producing silicon carbide composite ceramic materials, which solves the problem that the existing baking furnaces for producing silicon carbide composite ceramic products mostly adopt a fixed multi-layer design, have low internal space utilization, easily cause space waste, and result in high cost for single sintering. In addition, after a single batch of silicon carbide composite ceramic products is sintered, the silicon carbide composite ceramic products need to be removed from the multi-layer in sequence, and then the next batch of graphite products need to be placed in the idle multi-layer. The loading and unloading process is time-consuming, which reduces the sintering production efficiency.

[0005] According to a first aspect of the present invention, a sintering furnace for producing silicon carbide composite ceramic materials is provided, which specifically comprises: a furnace base, a bottom connecting base, a support frame, a movable support plate, a connecting rod, an X-shaped movable frame, a movable shaft, a screw, a movable pin, a U-shaped pull piece and a tension spring; the furnace base is welded with a bottom connecting base on the top, the bottom connecting base is groove-shaped, and the support frame is placed on the top of the bottom connecting base; the support frame is provided with a hanging hole on the top, and the movable support plates are connected to the support frame in an upper and lower arrangement inside; the support frame is connected to connecting rods on the left and right sides, and the movable support plates are connected to connecting rods on the left and right ends, and the connecting rods are connected in series with each other; the top of the movable support plate is connected to the X-shaped movable frame, the top of the X-shaped movable frame is connected to another movable support plate, and the X-shaped movable frame is located in the middle part of the support frame; the top of the movable support plate is connected to a movable shaft and a screw, the screw is connected to the movable shaft, and the movable shaft is connected to the X-shaped movable frame; the outside of the bottom connecting base is connected to the U-shaped pull piece, and the inside of the U-shaped pull piece is connected to two movable pins, and the movable pins are connected to the bottom connecting base and the support frame; and the ends of the U-shaped pull piece are connected to a tension spring.

[0006] Furthermore, the movable support plate is slidably connected to the support frame, the support frame is rotatably connected to the connecting rod, the movable support plate is rotatably connected to the connecting rod, and the two connecting rods are rotatably connected to each other.

[0007] Furthermore, the top rear end of the X-shaped movable frame is rotatably connected to the upper movable support plate, the top front end of the X-shaped movable frame is slidably connected to the upper movable support plate, and the bottom rear end of the X-shaped movable frame is rotatably connected to the lower movable support plate.

[0008] Furthermore, the front end of the bottom of the X-shaped movable frame is rotatably connected to the movable shaft, the movable shaft is slidingly connected to the movable support plate below, the screw is rotatably connected to the movable support plate, and the screw is threadedly connected to the inside of the movable shaft. According to the different specifications of the silicon carbide composite ceramic products to be sintered and processed, the screw is rotated, and the screw drives the X-shaped movable frame to deform through the movable shaft, and the X-shaped movable frame is used to adaptively adjust the upper and lower spacing distances of the movable support plates.

[0009] Furthermore, a mushroom-shaped card column is provided on the top of the bottom connecting seat, and a card hole is symmetrically provided on the bottom of the support frame. The aperture of one end of the card hole is larger than the aperture of the other end. The end with the larger aperture of the card hole is equal to the diameter of the top end of the card column, and the end with the smaller aperture of the card hole is equal to the diameter of the bottom end of the card column. The card column is connected to the card hole.

[0010] Furthermore, the bottom connecting seat is symmetrically provided with outer guide holes, and the bottom of the support frame is symmetrically provided with inner fixed grooves. When the clamping column is located at the end with the smaller diameter of the clamping hole, the outer guide hole is connected to the inner fixed groove.

[0011] Furthermore, the movable pin is slidably connected to the outer guide hole, and the end of the movable pin is inserted into the inner fixed groove, so that the U-shaped pull piece is slidably guided through the guide hole.

[0012] Furthermore, the front end of the bottom connecting seat is symmetrically provided with guide holes, the U-shaped pull piece is slidably connected in the guide holes, and the inside of the U-shaped pull piece is symmetrically provided with inclined holes, and the opposite ends of the movable pins are slidably connected in the inclined holes, so that the U-shaped pull piece can drive the two movable pins to move synchronously.

[0013] When the U-shaped member is in a fixed position, the bolt is pressed against the top of the frame and the bottom of the frame is fixed, so that the U-shaped member can be easily reset.

[0014] The present invention provides a sintering furnace for producing silicon carbide composite ceramic materials, which has the following beneficial effects: When the present invention is in use, the screw can be rotated according to the different specifications of the silicon carbide composite ceramic products to be sintered and processed. The screw drives the X-shaped movable frame to deform through the movable shaft, and the upper and lower spacing distances of the movable support plates are adaptively adjusted by using the X-shaped movable frame. It is better suitable for the sintering processing requirements of silicon carbide composite ceramic products of different specifications and has excellent practicality.

[0015] The U-shaped pull piece is slidably guided by the guide hole, and the inclined hole is set to enable the U-shaped pull piece to drive the two movable pins to move synchronously; the tension spring plays an elastic reset effect on the U-shaped pull piece, and the position of the U-shaped pull piece is adjusted and limited in combination with the bolt setting; when the crane lifts the support frame to the top of the bottom connecting seat, the clamping column is inserted into the end with a larger aperture of the clamping hole, and the support frame is moved to make the clamping column gradually move to the end with a smaller aperture of the clamping hole. At this time, the outer guide hole and the inner fixed groove are in a connected state, and the bolt is turned. The U-shaped pull piece moves and resets under the influence of the tension spring, and the U-shaped pull piece drives the two movable pins to move inward, so that the ends of the movable pins are inserted into the inner fixed groove, thereby ensuring the firmness of the connection between the support frame and the bottom connecting seat.

[0016] In addition, after the sintering of silicon carbide composite ceramic products is completed, the furnace base moves along the track to the outside of the sintering furnace, and the bolts are rotated in the opposite direction. The bolts drive the U-shaped puller to move in the opposite direction, the tension spring is stretched, and the U-shaped puller drives the two movable pins to move outward, so that the ends of the movable pins are separated from the inner fixed groove. The hook of the crane is connected to the lifting hole at the top of the support frame. The staff stays away from this area and lifts the support frame to the cooling and static area. The top of the furnace base is now idle, and the next batch of silicon carbide composite ceramic products can be sintered, which effectively improves the sintering efficiency.

[0017] Other advantages, objectives and features of the present invention will be reflected in part through the following description, and in part will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments are briefly introduced below.

[0019] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0020] In the attached figure: Figure 1 Shows a schematic diagram of the overall front axle side structure of the present application; Figure 2 Shows a schematic diagram of the overall rear axle side structure of the present application; Figure 3 A schematic diagram of the connection structure between the bottom connecting seat and the U-shaped pull piece of the present application is shown; Figure 4 It shows a schematic diagram of the connection structure between the furnace base and the bottom connecting base of the present application; Figure 5 It shows a schematic diagram of the axial side structure of the support frame of the present application; Figure 6 A schematic diagram of the disassembly structure of the movable support plate and the X-shaped movable frame of the present application is shown; Figure 7 A schematic diagram of the disassembled structure of the movable pin, U-shaped pull piece, tension spring and bolt of the present application is shown.

[0021] Reference numerals: 1. Furnace base; 2. Bottom connecting seat; 201. Clamping column; 202. Guide hole; 203. Outer guide hole; 204. Fixed hole; 3. Support frame; 301. Clamping hole; 302. Inner fixed groove; 303. Lifting hole; 4. Movable support plate; 5. Connecting rod; 6. X-shaped movable frame; 7. Movable shaft; 8. Screw; 9. Movable pin; 10. U-shaped pull piece; 1001. Inclined hole; 1002. Movable hole; 11. Tension spring; 12. Bolt. DETAILED DESCRIPTION

[0022] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of 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 described 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.

[0023] Please refer to Figures 1 to 7 :Example 1: The present invention proposes a sintering furnace for producing silicon carbide composite ceramic materials, comprising: a furnace base 1, a bottom connecting base 2, a supporting frame 3, a movable supporting plate 4, a connecting rod 5, an X-shaped movable frame 6, a movable shaft 7, a screw 8, a movable pin 9, a U-shaped puller 10 and a tension spring 11; a bottom connecting base 2 is welded to the top of the furnace base 1, the bottom connecting base 2 is groove-shaped, and a supporting frame 3 is placed on the top of the bottom connecting base 2; a hanging hole 303 is provided on the top of the supporting frame 3, and the interior of the supporting frame 3 is connected with the movable supporting plate 4 in an upper and lower arrangement; connecting rods 5 are connected to the left and right sides of the supporting frame 3, and the left and right ends of the movable supporting plate 4 are connected to the connecting rods 5, and the connecting rods 5 are connected in series with each other; the top of the movable supporting plate 4 is connected to the X-shaped movable frame 6, and the top of the X-shaped movable frame 6 is connected to another movable supporting plate 4, and the X-shaped movable frame 6 is located in the middle part of the interior of the support frame 3; the top of the movable supporting plate 4 is connected to the movable shaft 7 and the screw 8, and the screw 8 is connected to the movable The movable shaft 7 is connected, and the movable shaft 7 is connected to the X-shaped movable frame 6; the outside of the bottom connecting seat 2 is connected to a U-shaped pull piece 10, and the inside of the U-shaped pull piece 10 is connected to two movable pins 9, and the movable pin 9 is connected to the bottom connecting seat 2 and the support frame 3; the end of the U-shaped pull piece 10 is connected to a tension spring 11; the movable support plate 4 is slidably connected to the support frame 3, the support frame 3 is rotatably connected to the connecting rod 5, the movable support plate 4 is rotatably connected to the connecting rod 5, and the two connecting rods 5 are rotatably connected to each other; the top rear end of the X-shaped movable frame 6 is rotatably connected to the upper movable support plate 4, the top front end of the X-shaped movable frame 6 is slidably connected to the upper movable support plate 4, and the bottom rear end of the X-shaped movable frame 6 is rotatably connected to the lower movable support plate 4; the bottom front end of the X-shaped movable frame 6 is rotatably connected to the movable shaft 7, the movable shaft 7 is slidably connected to the lower movable support plate 4, the screw 8 is rotatably connected to the movable support plate 4, and the screw 8 is threadedly connected to the inside of the movable shaft 7; By adopting the above technical solution, the screw 8 can be rotated according to the different specifications of the silicon carbide composite ceramic products to be sintered and processed. The screw 8 drives the X-shaped movable frame 6 to deform through the movable shaft 7, and the X-shaped movable frame 6 is used to adaptively adjust the upper and lower spacing distances of the movable support plate 4, which is better suitable for the sintering processing requirements of silicon carbide composite ceramic products of different specifications and has excellent practicality.

[0024] Embodiment 2, on the basis of embodiment 1, a mushroom-shaped card column 201 is provided on the top of the bottom connecting seat 2, and a card hole 301 is symmetrically provided on the bottom of the support frame 3. The aperture of one end of the card hole 301 is larger than the aperture of the other end. The end with the larger aperture of the card hole 301 is equal to the diameter of the top end of the card column 201, and the end with the smaller aperture of the card hole 301 is equal to the diameter of the bottom end of the card column 201. The card column 201 is connected to the card hole 301. The outer guide hole 203 is symmetrically provided on the outside of the bottom connecting seat 2, and the bottom of the support frame 3 is symmetrical. An inner fixed groove 302 is provided. When the clamping column 201 is located at the end with the smaller aperture of the clamping hole 301, the outer guide hole 203 is connected to the inner fixed groove 302. The movable pin 9 is slidably connected to the outer guide hole 203. The end of the movable pin 9 is inserted into the inner fixed groove 302. The front end of the bottom connecting seat 2 is symmetrically provided with guide holes 202. The U-shaped puller 10 is slidably connected to the guide hole 202. The U-shaped puller 10 is symmetrically provided with inclined holes 1001 inside. The opposite ends of the movable pin 9 are slidably connected to the inclined holes 1001. By adopting the above technical solution, the U-shaped pull piece 10 is slidably guided by the guide hole 202 , and in combination with the setting of the inclined hole 1001 , the U-shaped pull piece 10 can drive the two movable pins 9 to move synchronously.

[0025] In this embodiment, the rear end of the bottom connecting seat 2 is symmetrically provided with fixed holes 204, and the two ends of the U-shaped pull member 10 are provided with movable holes 1002. One end of the tension spring 11 is connected to the fixed hole 204, and the other end of the tension spring 11 is connected to the movable hole 1002. A bolt 12 is threaded on the middle part of the U-shaped pull member 10, and the end of the bolt 12 is in contact with the furnace seat 1; By adopting the above technical solution, the tension spring 11 plays an elastic reset effect on the U-shaped pull member 10, and the setting of the bolt 12 is used to adjust and limit the position of the U-shaped pull member 10; when the driving crane lifts the support frame 3 to the top of the bottom connecting seat 2, the clamping column 201 is inserted into the end with the larger aperture of the clamping hole 301, and the support frame 3 is moved so that the clamping column 201 is gradually moved to the end with the smaller aperture of the clamping hole 301. At this time, the outer guide hole 203 and the inner fixed groove 302 are in a connected state, and the bolt 12 is turned. The U-shaped pull member 10 moves and resets under the influence of the tension spring 11, and the U-shaped pull member 10 drives the two movable pins 9 to move inward, so that the ends of the movable pins 9 are inserted into the inner fixed groove 302, ensuring The firmness of the connection between the support frame 3 and the bottom connecting seat 2; after the sintering process of the silicon carbide composite ceramic products is completed, the furnace seat 1 is moved along the track to the outside of the sintering furnace, and the bolt 12 is rotated in the opposite direction. The bolt 12 drives the U-shaped puller 10 to move in the opposite direction, and the tension spring 11 is stretched. The U-shaped puller 10 drives the two movable pins 9 to move outward, so that the ends of the movable pins 9 are separated from the inner fixed groove 302. The hook of the crane is connected to the lifting hole 303 at the top of the support frame 3. The staff stays away from this area and lifts the support frame 3 to the cooling and static area. The top of the furnace seat 1 is in an idle state at this time, and the next batch of silicon carbide composite ceramic products can be sintered, which effectively improves the sintering efficiency.

[0026] The working principle of this embodiment is as follows: first, when the support frame 3 is hoisted to the top of the bottom connecting seat 2 by a crane, the clamping column 201 is inserted into the end of the clamping hole 301 with a larger aperture, and the support frame 3 is moved so that the clamping column 201 is gradually moved to the end of the clamping hole 301 with a smaller aperture. At this time, the outer guide hole 203 and the inner fixed groove 302 are in a connected state, and the bolt 12 is turned. The U-shaped puller 10 moves and resets under the influence of the tension of the tension spring 11, and the U-shaped puller 10 drives the two movable pins 9 to move inward so that the ends of the movable pins 9 are inserted into the inner fixed groove 302, thereby ensuring the firmness of the connection between the support frame 3 and the bottom connecting seat 2; next, according to the different specifications of the silicon carbide composite ceramic products to be sintered and processed, the screw 8 is turned, and the screw 8 drives the X-shaped movable frame 6 to deform through the movable shaft 7, and the X-shaped movable frame 6 is used to support the movable The upper and lower spacing distances of the plates 4 can be adaptively adjusted, and the required sintered silicon carbide composite ceramic products can be placed on the movable support plate 4, and the furnace base 1 is moved along the track to the sintering furnace for sintering treatment; after the sintering processing of the silicon carbide composite ceramic products is completed, the furnace base 1 is moved along the track to the outside of the sintering furnace, and the bolt 12 is rotated in the opposite direction. The bolt 12 drives the U-shaped puller 10 to move in the opposite direction, and the tension spring 11 is stretched. The U-shaped puller 10 drives the two movable pins 9 to move outward, so that the ends of the movable pins 9 are separated from the inner fixed groove 302, and the hook of the crane is connected to the lifting hole 303 at the top of the support frame 3. The staff stays away from this area and lifts the support frame 3 to the cooling and static area. The top of the furnace base 1 is now idle, and the next batch of silicon carbide composite ceramic products can be sintered.

[0027] In this article, there are several points to note: 1. The drawings of the embodiments of the present invention only relate to the structures related to the embodiments of the present invention. Other structures may refer to conventional designs.

[0028] 2. In the absence of conflict, the embodiments of the present invention and the features therein may be combined with each other to form new embodiments.

[0029] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A sintering furnace for producing silicon carbide composite ceramic materials, comprising: A furnace seat (1), a bottom connecting seat (2), a support frame (3), a movable support plate (4), a connecting rod (5), an X-shaped movable frame (6), a movable shaft (7), a screw (8), a movable pin (9), a U-shaped pull piece (10) and a tension spring (11); characterized in that a bottom connecting seat (2) is welded on the top of the furnace seat (1), the bottom connecting seat (2) is groove-shaped, and a support frame (3) is placed on the top of the bottom connecting seat (2); a hanging hole (303) is provided on the top of the support frame (3), and the movable support plate (4) is connected to the inside of the support frame (3) in an upper and lower arrangement; the left and right sides of the support frame (3) are connected to the connecting rod (5), the left and right ends of the movable support plate (4) are connected to the connecting rod (5), and the connecting rod (5) is connected to the bottom of the support frame (3). The connecting rods (5) are connected in series with each other; the top of the movable support plate (4) is connected to an X-shaped movable frame (6), the top of the X-shaped movable frame (6) is connected to another movable support plate (4), and the X-shaped movable frame (6) is located in the middle part of the support frame (3); the top of the movable support plate (4) is connected to a movable shaft (7) and a screw rod (8), the screw rod (8) is connected to the movable shaft (7), and the movable shaft (7) is connected to the X-shaped movable frame (6); the outside of the bottom connecting seat (2) is connected to a U-shaped pull piece (10), the inside of the U-shaped pull piece (10) is connected to two movable pins (9), and the movable pins (9) are connected to the bottom connecting seat (2) and the support frame (3); the end of the U-shaped pull piece (10) is connected to a tension spring (11).

2. A sintering furnace for producing silicon carbide composite ceramic materials according to claim 1, characterized in that: The movable support plate (4) is slidably connected to the support frame (3), the support frame (3) is rotationally connected to the connecting rod (5), the movable support plate (4) is rotationally connected to the connecting rod (5), and the two connecting rods (5) are rotationally connected to each other.

3. A sintering furnace for producing silicon carbide composite ceramic materials according to claim 1, characterized in that: The top rear end of the X-shaped movable frame (6) is rotatably connected to the upper movable support plate (4), the top front end of the X-shaped movable frame (6) is slidably connected to the upper movable support plate (4), and the bottom rear end of the X-shaped movable frame (6) is rotatably connected to the lower movable support plate (4).

4. A sintering furnace for producing silicon carbide composite ceramic materials according to claim 1, characterized in that: The front end of the bottom of the X-shaped movable frame (6) is rotatably connected to the movable shaft (7), the movable shaft (7) is slidably connected to the movable support plate (4) below, the screw (8) is rotatably connected to the movable support plate (4), and the screw (8) is threadedly connected to the inside of the movable shaft (7).

5. The sintering furnace for producing silicon carbide composite ceramic material according to claim 1, characterized in that: A mushroom-shaped clamping column (201) is provided on the top of the bottom connecting seat (2), and a clamping hole (301) is symmetrically provided on the bottom of the support frame (3). The aperture of one end of the clamping hole (301) is larger than the aperture of the other end. The end of the clamping hole (301) with a larger aperture is equal to the diameter of the top end of the clamping column (201), and the end of the clamping hole (301) with a smaller aperture is equal to the diameter of the bottom end of the clamping column (201). The clamping column (201) is connected to the clamping hole (301).

6. The sintering furnace for producing silicon carbide composite ceramic material according to claim 1, characterized in that: The bottom connecting seat (2) is symmetrically provided with external guide holes (203), and the bottom of the supporting frame (3) is symmetrically provided with internal fixed grooves (302). When the clamping column (201) is located at the end with a smaller aperture of the clamping hole (301), the external guide hole (203) is connected to the internal fixed groove (302).

7. A sintering furnace for producing silicon carbide composite ceramic materials according to claim 6, characterized in that: The movable pin (9) is slidably connected to the outer guide hole (203), and the end of the movable pin (9) is inserted into the inner fixed groove (302).

8. The sintering furnace for producing silicon carbide composite ceramic material according to claim 1, characterized in that: The front end of the bottom connecting seat (2) is symmetrically provided with a guide hole (202), the U-shaped pull piece (10) is slidably connected in the guide hole (202), the interior of the U-shaped pull piece (10) is symmetrically provided with an inclined hole (1001), and the movable pin (9) is slidably connected in the inclined hole (1001) at opposite ends.

9. The sintering furnace for producing silicon carbide composite ceramic material according to claim 1, characterized in that: The bottom connecting seat (2) is symmetrically provided with fixed holes (204) at the rear end, and movable holes (1002) are provided at both ends of the U-shaped pull member (10). One end of the tension spring (11) is connected to the fixed hole (204), and the other end of the tension spring (11) is connected to the movable hole (1002). A bolt (12) is threaded in the middle part of the U-shaped pull member (10), and the end of the bolt (12) is in contact with the furnace seat (1).

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