Special device for oxygen sintering of high-temperature piezoelectric ceramics

Abstract

The utility model relates to the technical field of sintering, and provides a special high-temperature piezoelectric ceramic oxygen sintering device which comprises a furnace body, one side of the furnace body is rotatably connected with a sealing cover, one side of the sealing cover is provided with clamping grooves which are symmetrically arranged, and one side of the furnace body is fixedly connected with a sealing assembly. The sealing assembly comprises a support fixedly connected to one side of the furnace body, a worm is connected to the support in a rotating mode, a supporting plate is fixedly connected to one side of the support, and two circular shafts are connected to the supporting plate in a rotating mode. The worm drives the worm gear to rotate synchronously and drives the limiting shaft to be evenly embedded along the arc-shaped track of the clamping groove, so that pressing force borne by the two sides of the sealing cover is kept consistent, uniformity and reliability of furnace body sealing are guaranteed, a stable atmosphere environment is provided for oxygen sintering of high-temperature piezoelectric ceramics, sealing can be completed by rotating the worm once, the structure is simple, and cost is low. The use is convenient.

Description

Technical Field

[0001] This utility model relates to the field of sintering technology, specifically to a special device for oxygen sintering of high-temperature piezoelectric ceramics. Background Technology

[0002] In the oxygen sintering process of high-temperature piezoelectric ceramics, atmosphere-protected furnaces typically employ a sealing connection between the sealing cover and the furnace body via two rotatable bolts. An adjusting disc is threaded onto the bolts, and a concave locking block is installed on the sealing cover. After rotating the bolts to the locking block position, the sealing cover is tightened and sealed by rotating the adjusting disc. This structure utilizes threads to achieve the sealing function, meeting the basic sealing requirements of the atmosphere-protected furnace as sintering equipment.

[0003] However, in practical applications, the two adjusting discs each rely on the threaded transmission of bolts. When rotating the two discs, differences in the manual adjustment force by the operator or pitch errors caused by bolt machining precision can easily lead to asynchronous movements when the two adjusting discs are adjusted and rotated individually. This makes it difficult to ensure consistent displacement when the two adjusting discs are sealed synchronously. This displacement deviation causes differences in the clamping force at both ends of the sealing cover, resulting in oxygen leakage or pressure fluctuations in the atmosphere protection furnace due to uneven force on the sealing surface. This directly affects the stable oxygen partial pressure environment required during the sintering of high-temperature piezoelectric ceramics, impacting key indicators such as crystal growth, density, and piezoelectric properties of the ceramic material. Utility Model Content

[0004] The purpose of this invention is to provide a special device for oxygen sintering of high-temperature piezoelectric ceramics to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a special device for oxygen sintering of high-temperature piezoelectric ceramics, including a furnace body, a sealing cover rotatably connected to one side of the furnace body, a symmetrically arranged slot on one side of the sealing cover, and a sealing component fixedly connected to one side of the furnace body;

[0006] The sealing assembly includes a bracket fixedly connected to one side of the furnace body, a worm gear rotatably connected to the bracket, a support plate fixedly connected to one side of the bracket, two round shafts rotatably connected to the support plate, a worm wheel fixedly connected to the round shaft, and a limit shaft fixedly connected to one side of the worm wheel.

[0007] Preferably, casters are fixedly installed at the four corners of the lower end of the furnace body.

[0008] Preferably, an adjustable handle is fixedly connected to the upper end of the worm gear, and the surface of the handle has an anti-slip structure design.

[0009] Preferably, the worm is a double-headed, bidirectional worm, and the worm is meshed with a worm wheel.

[0010] Preferably, the slot is arc-shaped, with the center of the arc coinciding with the center of the worm gear shaft, and the limiting shaft corresponds to the slot.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: through the meshing transmission structure of the double-headed bidirectional worm gear and worm wheel, when the adjustment handle is rotated, the worm gear drives the worm wheel to rotate synchronously, causing the limiting shaft to be evenly embedded along the arc trajectory of the slot, so that the pressing force on both sides of the sealing cover is consistent, ensuring the uniformity and reliability of the furnace body seal, providing a stable atmosphere environment for the oxygen sintering of high-temperature piezoelectric ceramics, and the sealing can be completed with a single rotation of the worm gear, which is simple in structure and easy to use. Attached Figure Description

[0012] Figure 1 This is a front view of the structure of this utility model;

[0013] Figure 2 This is a partial structural schematic diagram of the present invention;

[0014] Figure 3 This is a schematic diagram of the sealing cap structure of this utility model;

[0015] Figure 4 This is a schematic diagram of the sealing component of this utility model.

[0016] In the diagram: 1. Furnace body; 2. Sealing cover; 3. Slot; 4. Bracket; 5. Worm gear; 6. Support plate; 7. Round shaft; 8. Worm wheel; 9. Limiting shaft; 10. Caster wheel; 11. Adjusting handle. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-4 This utility model provides the following technical solution: a special device for oxygen sintering of high temperature piezoelectric ceramics, including a furnace body 1, a sealing cover 2 rotatably connected to one side of the furnace body 1, a symmetrically arranged slot 3 opened on one side of the sealing cover 2, and a sealing assembly fixedly connected to one side of the furnace body 1; the sealing assembly includes a bracket 4 fixedly connected to one side of the furnace body 1, a worm gear 5 rotatably connected to the bracket 4, a support plate 6 fixedly connected to one side of the bracket 4, two round shafts 7 rotatably connected to the support plate 6, a worm wheel 8 fixedly connected to the round shafts 7, and a limit shaft 9 fixedly connected to one side of the worm wheel 8;

[0019] Universal wheels 10 are fixedly installed at the four corners of the lower end of the furnace body 1. An adjustable handle 11 is fixedly connected to the upper end of the worm gear 5. The surface of the handle 11 is designed with an anti-slip structure. The worm gear 5 is a double-headed, bidirectional worm gear. The worm gear 5 is meshed with the worm wheel 8. The slot 3 is arc-shaped, and the center of the arc is consistent with the axis of the worm wheel 8. The limiting shaft 9 corresponds to the slot 3.

[0020] In use, the device is moved to the designated position using the casters 10 at the lower end of the furnace body 1. Then, the adjusting handle 11 at the upper end of the worm gear 5 is rotated clockwise, and the worm gear 5 rotates synchronously. Since the worm gear 5 is a double-headed, bidirectional worm gear and meshes with the worm wheel 8, the rotation of the worm gear 5 will drive the worm wheel 8 to rotate around the circular shaft 7. When the worm wheel 8 rotates, the limiting shaft 9 on one side rotates synchronously. Since the slot 3 is arc-shaped and the center of the arc is consistent with the axis of the worm wheel 8, the limiting shaft 9 will gradually embed itself into the slot 3 along the arc trajectory of the slot 3. As the adjusting handle 11 continues to rotate, the limiting shaft 9 penetrates into the slot 3, thereby pushing the sealing cover 2 to fit tightly against one side of the furnace body 1, thus sealing the furnace body 1. At this time, the slots 3 on both sides of the sealing cover 2 are tightly engaged with the limiting shaft 9, so that the sealing cover 2 is evenly stressed, ensuring the airtightness of the oxygen sintering environment inside the furnace. When it is necessary to open the furnace body, rotate the adjusting handle 11 counterclockwise, and the worm gear 5 drives the worm wheel 8 to rotate in the opposite direction. The limiting shaft 9 disengages from the slot 3, and the sealing cover 2 can be easily rotated to open the furnace body.

[0021] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A special device for oxygen sintering of high-temperature piezoelectric ceramics, comprising a furnace body (1), wherein a sealing cover (2) is rotatably connected to one side of the furnace body (1), characterized in that: A symmetrically arranged slot (3) is provided on one side of the sealing cover (2), and a sealing assembly is fixedly connected to one side of the furnace body (1); The sealing assembly includes a bracket (4) fixedly connected to one side of the furnace body (1), a worm gear (5) rotatably connected to the bracket (4), a support plate (6) fixedly connected to one side of the bracket (4), two round shafts (7) rotatably connected to the support plate (6), a worm wheel (8) fixedly connected to the round shaft (7), and a limit shaft (9) fixedly connected to one side of the worm wheel (8).

2. The special apparatus for high-temperature piezoelectric ceramic oxygen sintering according to claim 1, characterized in that: Universal wheels (10) are fixedly installed at the four corners of the lower end of the furnace body (1).

3. The special apparatus for high-temperature piezoelectric ceramic oxygen sintering according to claim 1, characterized in that: An adjustable handle (11) is fixedly connected to the upper end of the worm gear (5), and the surface of the handle (11) is designed with an anti-slip structure.

4. The special apparatus for high-temperature piezoelectric ceramic oxygen sintering according to claim 1, characterized in that: The worm (5) is a double-headed bidirectional worm, and the worm (5) is meshed with the worm wheel (8).

5. The special apparatus for high-temperature piezoelectric ceramic oxygen sintering according to claim 1, characterized in that: The slot (3) is arc-shaped, and the center of the arc is consistent with the axis of the worm gear (8). The limiting shaft (9) corresponds to the slot (3).

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