Stirring mechanism for lithium niobate crystal proton exchange furnace

Abstract

The utility model relates to a stirring mechanism for lithium niobate crystal proton exchange furnace, include: lifting assembly, including first drive motor, speed reducer, screw rod, nut, support plate, nut fixed embedding to support plate, first drive motor and speed reducer connection, speed reducer with screw rod connection, screw rod with nut screw thread connection, so that the nut drives support plate moves in vertical direction, agitating subassembly, including second drive motor, first pulley, second pulley, transmission belt, stirring rod, stirring vane, second drive motor has rotating shaft, second pulley with rotating shaft fixed mounting together, first pulley with stirring rod fixed mounting together, transmission belt connects first pulley with second pulley together, and stirring vane fixed mounting on stirring rod, stirring rod fixed mounting on support plate, stirring rod rotates relative to support plate.

Description

Technical Field

[0001] This utility model relates to the field of lithium niobate production and processing equipment, specifically to a stirring mechanism for a proton exchange furnace for lithium niobate crystals. Background Technology

[0002] Lithium niobate crystals possess many excellent properties, such as superior physical, electrical, optical, and chemical stability, leading to their wide application in numerous fields. Currently, one common method for fabricating lithium niobate optical waveguides is the proton exchange method, which involves immersing lithium niobate in benzoic acid, where hydrogen ions replace lithium ions to form low-refractive-index regions. Generally, to enhance the proton exchange effect and improve the uniformity of the waveguide's refractive index, the wafer needs to be stirred in the benzoic acid liquid. Currently, manual stirring is commonly used, although machine stirring is also employed. However, both methods suffer from issues of insufficient stirring and instability. For example, Chinese utility model patent application number CN202221147283.9 discloses a mixing device for lithium carbonate and lithium niobate polishing liquid, including a mixing cylinder and a top cover. A feed inlet is fixedly connected to the upper end of the top cover, and a dual mixing mechanism is connected to the top cover. A fixing block is fixedly connected to the periphery of the top cover, and a multi-section hydraulic cylinder is fixedly installed on the periphery of the mixing cylinder, with the output end of the multi-section hydraulic cylinder fixedly connected to the lower surface of the fixing block. The mixing blades of the mixing mechanism disclosed in this patent can only rotate and cannot be raised or lowered. This inevitably results in some materials at the top and bottom of the furnace not being easily stirred, thus causing insufficient and unstable mixing to a certain extent. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a stirring mechanism for a lithium niobate crystal proton exchange furnace.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a stirring mechanism for a lithium niobate crystal proton exchange furnace, comprising:

[0005] A lifting assembly includes a first drive motor, a reducer, a lead screw, a nut, and a support plate. The nut is fixedly embedded in the support plate, thereby fixing the nut and the support plate together. The first drive motor is connected to the reducer, the reducer is connected to the lead screw, and the lead screw is threadedly connected to the nut. This allows the nut to move up and down on the lead screw when the first drive motor drives the lead screw to rotate, thereby causing the nut to move the support plate vertically.

[0006] The agitation assembly includes a second drive motor, a first pulley, a second pulley, a transmission belt, a stirring rod, and a stirring impeller. The second drive motor has a rotating shaft, and the second pulley and the rotating shaft are fixedly mounted together, thereby causing the second drive motor to drive the second pulley to rotate. The first pulley and the stirring rod are fixedly mounted together, the transmission belt connects the first pulley and the second pulley together, and the stirring impeller is fixedly mounted on the stirring rod, thereby causing the second drive motor to drive the stirring impeller to rotate. The stirring rod is fixedly mounted on the support plate on one side, and rotates relative to the support plate on the other side.

[0007] In some embodiments of this application, preferably, a guide post and a sliding sleeve are further included. The sliding sleeve has a through hole that extends through the sliding sleeve along its axial direction. The outer diameter of the guide post is smaller than the inner diameter of the through hole of the sliding sleeve. The guide post is inserted into and passes through the through hole of the sliding sleeve, thereby allowing the sliding sleeve to slide on the guide post. The sliding sleeve is fixedly mounted on the support plate.

[0008] In some embodiments of this application, preferably, a support platform is also included, one end of the guide post passes through the through hole of the sliding sleeve, and the end of the guide post is fixedly connected to the support platform.

[0009] In some embodiments of this application, preferably, a support frame is also included, the reducer is fixedly mounted on the support frame, and the support platform is fixedly connected to the support frame.

[0010] In some embodiments of this application, preferably, the reducer includes a gear assembly comprising a first gear, a second gear, a third gear, a fourth gear, a fifth gear, a sixth gear, a first rotating rod, a second rotating rod, a third rotating rod, and a fourth rotating rod. The first gear is fixedly mounted on the first rotating rod, the second and third gears are fixedly mounted on the second rotating rod, the fourth and fifth gears are fixedly mounted on the third rotating rod, and the sixth gear is fixedly mounted on the fourth rotating rod. The first gear meshes with the second gear, the third gear meshes with the fourth gear, and the fifth gear meshes with the sixth gear.

[0011] In some embodiments of this application, preferably, the reducer further includes a housing on which the gear assembly is mounted.

[0012] In some embodiments of this application, preferably, the first rotating rod is connected to the first drive motor, so that the first drive motor drives the first rotating rod to rotate; the fourth rotating rod is connected to the lead screw, so that when the fourth rotating rod rotates, it drives the lead screw to rotate.

[0013] In some embodiments of this application, preferably, the diameter of the first gear is smaller than the diameter of the second gear, the diameter of the third gear is smaller than the diameter of the fourth gear, and the diameter of the fifth gear is smaller than the diameter of the sixth gear.

[0014] The beneficial effects of this application are as follows: The stirring mechanism for the lithium niobate crystal proton exchange furnace provided by this application has the advantages of simple structure and easy assembly and disassembly. Secondly, given that a lifting component and a stirring component are provided, the lifting component can make the stirring impeller rise and fall in the vertical direction, and the stirring component can make the stirring impeller rotate in the horizontal direction. Thus, the stirring impeller can be moved to the furnace top area and the furnace bottom area by the lifting component, so that stirring can be carried out more fully and stably, thereby achieving full and stable replacement of lithium niobate crystals in benzoic acid liquid. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the stirring mechanism for a lithium niobate crystal proton exchange furnace provided by this utility model.

[0016] Figure 2 for Figure 1 The image shown is a partially enlarged view of the stirring mechanism used in a proton exchange furnace for lithium niobate crystals.

[0017] Figure 3 for Figure 1 Another enlarged view of the stirring mechanism used in the proton exchange furnace for lithium niobate crystals.

[0018] Figure 4 This is a schematic diagram of the reducer for the stirring mechanism of the lithium niobate crystal proton exchange furnace provided by this utility model. Detailed Implementation

[0019] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. Similar elements in different embodiments are referred to by related similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of the present application. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, certain operations related to the present application are not shown or described in the specification. This is to avoid obscuring the core parts of the present application with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.

[0020] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments, and the operational steps involved in each embodiment can also be rearranged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the specification and drawings are only for clearly describing a particular embodiment and do not imply that they represent the necessary components and / or order.

[0021] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages).

[0022] Please refer to Figure 1-4 This application provides a stirring mechanism for a lithium niobate crystal proton exchange furnace (hereinafter referred to as "the stirring mechanism"). The stirring mechanism can realize the stirring impeller to rotate horizontally and to rise and fall vertically, so that the stirring impeller can reach both the top and bottom areas of the furnace, thereby making the stirring sufficient and stable.

[0023] The stirring mechanism includes:

[0024] The lifting assembly includes a first drive motor 2, a reducer 3, a lead screw 4, a nut 5, and a support plate 6. The nut 5 is fixedly embedded in the support plate 6, thereby fixing the nut 5 and the support plate 6 together. The first drive motor 2 is connected to the reducer 3, the reducer 3 is connected to the lead screw 4, and the lead screw 4 is threadedly connected to the nut 5. This allows the nut 5 to move up and down on the lead screw 4 when the first drive motor 2 drives the lead screw 4 to rotate, thereby causing the nut 5 to drive the support plate 6 to move in the vertical direction.

[0025] The agitation assembly includes a second drive motor 7, a first pulley 8, a second pulley 11, a transmission belt 12, a stirring rod 9, and a stirring impeller 10. The second drive motor 7 has a rotating shaft 70, and the second pulley 11 and the rotating shaft 70 are fixedly installed together, so that the second drive motor 7 drives the second pulley 11 to rotate. The first pulley 8 and the stirring rod 9 are fixedly installed together, and the transmission belt 12 connects the first pulley 8 and the second pulley 11 together. The stirring impeller 10 is fixedly installed on the stirring rod 9, so that the second drive motor 7 drives the stirring impeller 10 to rotate. The stirring rod 9 is fixedly installed on the support plate 6 on one hand, and rotates relative to the support plate 6 on the other hand. As will be clear to those skilled in the art, there are various ways to achieve the goal of "the stirring rod 9 being fixedly mounted on the support plate 6 on the one hand, and rotating relative to the support plate 6 on the other hand". For example, the preferred solution adopted in this application is to fix the bearing into the support plate 6, and then install the stirring rod 9 and the bearing together. This allows the stirring rod 9 to be fixedly mounted on the support plate 6 so that the stirring rod 9 can move synchronously when the support plate 6 moves, and also allows the stirring rod 9 to rotate relative to the support plate 6.

[0026] Please refer to some embodiments of this application. Figure 1-4 The stirring mechanism also includes a guide post 13 and a sliding sleeve 15. The sliding sleeve 15 has a through hole (not shown in the figure) that extends through the sliding sleeve 15 along its axial direction. The outer diameter of the guide post 13 is smaller than the inner diameter of the through hole in the sliding sleeve 15. The guide post 13 is inserted into and passes through the through hole in the sliding sleeve 15, allowing the sliding sleeve 15 to slide on the guide post 13. The sliding sleeve 15 is fixedly mounted on the support plate 6. Thus, when the support plate 6 moves up and down under the drive of the lead screw 4, the support plate 6 drives the sliding sleeve 15 to slide on the guide post 13. This allows the sliding sleeve 15 to limit the movement of the support plate 6, preventing it from shaking and making the lifting and lowering of the support plate 6 more stable.

[0027] Please refer to some embodiments of this application. Figure 1-4 The stirring mechanism also includes a support platform 14. One end of the guide post 13 passes through the through hole of the sliding sleeve 15, and this end of the guide post 13 is fixedly connected to the support platform 14. In this way, the guide post 13 is directly fixed to the support platform 14, which makes the sliding sleeve 15 more stable when sliding on the guide post 13.

[0028] Please refer to some embodiments of this application. Figure 1-4The stirring mechanism also includes a support frame 1, the reducer 3 is fixedly mounted on the support frame 1, and the support platform 14 is fixedly connected to the support frame 1. In this application, the reducer 3 is fixedly mounted on the support frame 1 by bolts or screws; while the support platform 14 and the support frame 1 can be fixedly connected together by bolts, screws, or welding.

[0029] Please refer to some embodiments of this application. Figure 4 The reducer 3 includes a gear assembly comprising a first gear 33, a second gear 34, a third gear 35, a fourth gear 36, a fifth gear 37, a sixth gear 38, a first rotating rod 32, a second rotating rod 39, a third rotating rod 310, and a fourth rotating rod 311. The first gear 33 is fixedly mounted on the first rotating rod 32, the second gear 34 and the third gear 35 are fixedly mounted on the second rotating rod 39, the fourth gear 36 and the fifth gear 37 are fixedly mounted on the third rotating rod 310, and the sixth gear 38 is fixedly mounted on the fourth rotating rod 311. The first gear 33 meshes with the second gear 34, the third gear 35 meshes with the fourth gear 36, and the fifth gear 37 meshes with the sixth gear 38. Thus, rotating the first rotating rod 32 transmits rotation to the fourth rotating rod 311, and the high speed on the first rotating rod 32 is transmitted to the low speed on the fourth rotating rod 311 after passing through the gear assembly.

[0030] Please refer to some embodiments of this application. Figure 4 The reducer 3 also includes a housing 31, on which the gear assembly is mounted.

[0031] Please refer to some embodiments of this application. Figure 4 The first rotating rod 32 is connected to the first drive motor 2, so that the first drive motor 2 drives the first rotating rod 32 to rotate; the fourth rotating rod 311 is connected to the lead screw 4, so that when the fourth rotating rod 311 rotates, it drives the lead screw 4 to rotate. Of course, in this application, the first rotating rod 32 and the first drive motor 2 can be directly connected, for example, by welding, or they can be connected by a coupling. Similarly, the fourth rotating rod 311 and the lead screw 4 can be directly connected, for example, by welding, or they can be connected by a coupling.

[0032] Please refer to some embodiments of this application. Figure 4The diameter of the first gear 33 is smaller than the diameter of the second gear 34, the diameter of the third gear 35 is smaller than the diameter of the fourth gear 36, and the diameter of the fifth gear 37 is smaller than the diameter of the sixth gear 38.

[0033] The stirring mechanism for a lithium niobate crystal proton exchange furnace provided in this application has the advantages of simple structure and easy assembly and disassembly. Secondly, given that it is equipped with a lifting component and a stirring component, the lifting component can make the stirring impeller move up and down in the vertical direction, and the stirring component can make the stirring impeller rotate in the horizontal direction. Thus, the stirring impeller can be moved to the furnace top area and the furnace bottom area by the lifting component, so that the stirring can be more thorough and stable, thereby achieving thorough and stable replacement of lithium niobate crystals in benzoic acid liquid.

[0034] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A stirring mechanism for a lithium niobate crystal proton exchange furnace, characterized in that, include: A lifting assembly includes a first drive motor, a reducer, a lead screw, a nut, and a support plate. The nut is fixedly embedded in the support plate, thereby fixing the nut and the support plate together. The first drive motor is connected to the reducer, the reducer is connected to the lead screw, and the lead screw is threadedly connected to the nut. This allows the nut to move up and down on the lead screw when the first drive motor drives the lead screw to rotate, thereby causing the nut to move the support plate vertically. The agitation assembly includes a second drive motor, a first pulley, a second pulley, a transmission belt, a stirring rod, and a stirring impeller. The second drive motor has a rotating shaft, and the second pulley and the rotating shaft are fixedly mounted together, thereby causing the second drive motor to drive the second pulley to rotate. The first pulley and the stirring rod are fixedly mounted together, the transmission belt connects the first pulley and the second pulley together, and the stirring impeller is fixedly mounted on the stirring rod, thereby causing the second drive motor to drive the stirring impeller to rotate. The stirring rod is fixedly mounted on the support plate on one side, and rotates relative to the support plate on the other side.

2. The stirring mechanism according to claim 1, characterized in that, It also includes a guide post and a sliding sleeve. The sliding sleeve has a through hole that extends through the sliding sleeve along its axial direction. The outer diameter of the guide post is smaller than the inner diameter of the through hole in the sliding sleeve. The guide post is inserted into and passes through the through hole in the sliding sleeve, thereby allowing the sliding sleeve to slide on the guide post. The sliding sleeve is fixedly mounted on the support plate.

3. The stirring mechanism according to claim 2, characterized in that, It also includes a support platform, one end of the guide post passes through the through hole of the sliding sleeve, and the end of the guide post is fixedly connected to the support platform.

4. The stirring mechanism according to claim 3, characterized in that, It also includes a support frame, the reducer is fixedly mounted on the support frame, and the support platform is fixedly connected to the support frame.

5. The stirring mechanism according to claim 1, characterized in that, The reducer includes a gear assembly comprising a first gear, a second gear, a third gear, a fourth gear, a fifth gear, a sixth gear, a first rotating rod, a second rotating rod, a third rotating rod, and a fourth rotating rod. The first gear is fixedly mounted on the first rotating rod, the second and third gears are fixedly mounted on the second rotating rod, the fourth and fifth gears are fixedly mounted on the third rotating rod, and the sixth gear is fixedly mounted on the fourth rotating rod. The first gear meshes with the second gear, the third gear meshes with the fourth gear, and the fifth gear meshes with the sixth gear.

6. The stirring mechanism according to claim 5, characterized in that, The reducer also includes a housing, on which the gear assembly is mounted.

7. The stirring mechanism according to claim 5, characterized in that, The first rotating rod is connected to the first drive motor, so that the first drive motor drives the first rotating rod to rotate; the fourth rotating rod is connected to the lead screw, so that when the fourth rotating rod rotates, it drives the lead screw to rotate.

8. The stirring mechanism according to claim 5, characterized in that, The diameter of the first gear is smaller than the diameter of the second gear, the diameter of the third gear is smaller than the diameter of the fourth gear, and the diameter of the fifth gear is smaller than the diameter of the sixth gear.

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