Motion sealing mechanism capable of stabilizing vacuum state
By designing a motion sealing mechanism that includes a sliding stabilizer and a lubricating oil channel, the problem of poor sealing in the vacuum environment during the production of quartz crystal oscillators was solved. This achieved automatic lubricant replenishment and stable sealing effect, reducing maintenance difficulty and cost.
Patent Information
- Application Number
- CN202423302848.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-12-31
AI Technical Summary
In the production of quartz crystal oscillators, poor sealing in a vacuum environment can lead to air leakage. Existing technologies require disassembling the sealing mechanism for maintenance, which is a cumbersome and costly process.
Design a motion sealing mechanism that includes a sliding stabilizer, a mounting body, a sealing ring, an oil storage buffer component, and auxiliary fixing components. Automatic lubrication is achieved through lubrication channels and oil injection plugs to ensure sealing performance.
It achieves long-term sealing stability in a vacuum environment, reduces maintenance frequency and cost, and the lubricating oil can be replenished automatically, avoiding air leakage problems caused by grease consumption.
Smart Images
Figure CN223648544U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of quartz crystal oscillator production equipment, specifically a motion sealing mechanism for stabilizing a vacuum state. Background Technology
[0002] In the quartz crystal oscillator manufacturing industry, fine-tuning of quartz crystals requires simultaneous measurement and adjustment. The etching environment for fine-tuning is in a vacuum state, while the power supply mechanism is located in an atmospheric state. To achieve dynamic sealing between moving parts, a small amount of grease is applied to the surface of the sealing ring to form an oil film. During movement, the oil film lubricates and compresses the sealing ring to achieve a sealing effect. However, during long-term reciprocating motion, the oil film is consumed, the sealing ring ages due to long-term pressure from the movement, and the wear of the accelerated shaft during movement leads to air leakage and vacuum fluctuations in the fine-tuning chamber. During maintenance, the atmospheric power mechanism and the sealing mechanism connecting the vacuum chamber need to be disassembled for maintenance. The overall structure is complex and the maintenance cost is high. Utility Model Content
[0003] This utility model aims to provide a motion sealing mechanism for a stable vacuum state, in order to solve the problem of poor sealing caused by the long-term continuous reciprocating motion of the up and down movement mechanism of the fine-tuning machine in a vacuum environment, resulting in air leakage due to grease oxidation and drying. After the abnormality occurs, the air leakage cannot be eliminated directly, and the entire measurement sealing mechanism must be disassembled for maintenance, which is a cumbersome and time-consuming process.
[0004] To achieve the above objectives, the basic solution of this utility model is as follows: A motion sealing mechanism for stabilizing a vacuum state includes two sliding stabilizers, a mounting body, several oil injection plugs, two sealing rings, an oil storage buffer component, and an auxiliary fixing component. The mounting body has a through hole for the moving parts to pass through. The two sliding stabilizers are respectively installed at both ends of the through hole. Several lubricating oil channels are provided on the side of the through hole. Several oil injection plugs are detachably installed on the outside of the several lubricating oil channels. The oil storage buffer component is located at the connection between the through hole and the lubricating oil channels in the mounting body. Several oil holes that can communicate with the lubricating oil channels are provided on the side of the oil storage buffer component. The two sealing rings are located at both ends of the oil storage buffer component. The auxiliary fixing component is detachably fixed to the bottom of the mounting body. The auxiliary fixing component is used to limit the movement of the oil storage buffer component. One of the sliding stabilizers is installed inside the auxiliary fixing component.
[0005] Furthermore, there are two of each of the lubricating oil passages and the oil injection plug, and the two lubricating oil passages are arranged symmetrically.
[0006] Furthermore, the oil storage buffer component is provided with four oil passage holes.
[0007] The beneficial effects of this solution are: (1) Lubricating oil is injected into the lubricating oil passage, so that the lubricating oil passage and the oil storage buffer component are filled with lubricating oil to achieve sealing. The sealing rings at both ends of the oil storage buffer component can scrape off the grease attached to the moving shaft and leave it in the oil storage buffer component during the reciprocating motion of the moving shaft, thus ensuring the sealing effect.
[0008] (2) When the lubricating oil is consumed over a long period of time, resulting in a lack of grease and causing air leakage or poor sealing effect, it is not necessary to disassemble the sealing mechanism. Just open the oil filling plug on the outside of the lubricating oil passage and add an appropriate amount of lubricating oil into the lubricating oil passage.
[0009] (3) Two sliding stabilizers are fixed on the reciprocating motion shaft, which can limit the radial movement of the motion shaft and reduce the wear of the motion shaft. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model. Detailed Implementation
[0011] 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.
[0012] The reference numerals in the accompanying drawings of the instruction manual include: 1. Sliding stabilizer; 2. Mounting body; 3. Oil filling plug; 4. Sealing ring; 5. Oil storage buffer component; 6. Auxiliary fixing component.
[0013] Example
[0014] The basics are as follows: Figure 1 As shown: A motion sealing mechanism for stabilizing a vacuum state includes two sliding stabilizers 1, a mounting body 2, two oil filling plugs 3, two sealing rings 4, an oil storage buffer component 5, and an auxiliary fixing component 6. The mounting body 2 has a through hole for the moving parts to pass through. The two sliding stabilizers 1 are respectively installed at both ends of the through hole. Two lubricating oil channels are provided on the side of the through hole, and the two lubricating oil channels are symmetrically arranged. The two oil filling plugs 3 are respectively detachably installed on the outside of the two lubricating oil channels. The oil storage buffer component 5 is located at the connection between the through hole and the lubricating oil channel in the mounting body 2. The side of the oil storage buffer component 5 has four oil holes that can communicate with the lubricating oil channels. The two sealing rings 4 are located at both ends of the oil storage buffer component 5. The auxiliary fixing component 6 is detachably fixed to the bottom of the mounting body 2. The auxiliary fixing component 6 is used to limit the oil storage buffer component 5. One of the sliding stabilizers 1 is installed in the auxiliary fixing component 6.
[0015] The specific implementation process is as follows: When the motion shaft moves from the atmospheric environment side to the vacuum chamber side, the motion shaft will drive the two sealing rings 4 and the oil storage buffer component 5 to move a small distance towards the vacuum chamber side. At this time, it will agitate the lubricating oil distributed in the lubricating oil channel and the oil storage buffer component 5. The lubricating oil attached to the two sealing rings 4 and the oil storage buffer component 5 can lubricate the motion shaft and seal the cavity. At this time, the two sealing rings 4 and the oil storage buffer component 5 move to the upper end, and the motion shaft is still moving towards the vacuum chamber side. The sealing ring 4 at the upper end can scrape off the excess lubricating oil attached to the motion shaft and leave it in the oil storage buffer component 5. The sealing ring 4 at the lower end will also provide lubrication and sealing for the motion shaft on the atmospheric environment side.
[0016] When the motion shaft moves from the vacuum chamber side to the atmospheric environment side, the two sealing rings 4 and the oil storage buffer component 5 are already biased towards the vacuum chamber side. They will move a small distance towards the atmospheric environment side, which will agitate the lubricating oil distributed in the lubricating oil channel and the oil storage buffer component 5. The lubricating oil attached to the two sealing rings 4 and the oil storage buffer component 5 can lubricate the motion shaft and seal the cavity. At this time, the two sealing rings 4 and the oil storage buffer component 5 move to the lower end, while the motion shaft is still moving towards the atmospheric environment side. The sealing ring 4 at the lower end can scrape off the excess lubricating oil attached to the motion shaft and leave it in the oil storage buffer component 5. The sealing ring 4 at the upper end will also provide lubrication and sealing for the motion shaft on the vacuum chamber side.
[0017] When prolonged use leads to insufficient lubricating oil, resulting in air leakage and poor sealing, there is no need to remove the sealing mechanism. Simply open the oil filling plug 3 on the outside of the lubricating oil passage and add an appropriate amount of lubricating oil into the lubricating oil passage.
[0018] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0019] The above descriptions are merely embodiments of this utility model. Commonly known structures and characteristics are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are knowledgeable of all existing technologies in that field, and possess the ability to apply conventional experimental methods prior to that date. Therefore, those skilled in the art can, based on the guidance provided in this application, improve and implement this solution in conjunction with their own capabilities. Typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.
Claims
1. A motion sealing mechanism for stabilizing a vacuum state, characterized in that: The device includes two sliding stabilizers, a mounting body, several oil filling plugs, two sealing rings, an oil storage buffer component, and an auxiliary fixing component. The mounting body has a through hole for the moving parts to pass through. The two sliding stabilizers are respectively installed at both ends of the through hole. Several lubricating oil channels are provided on the side of the through hole. Several oil filling plugs are detachably installed on the outside of the several lubricating oil channels. The oil storage buffer component is located at the connection between the through hole and the lubricating oil channels in the mounting body. Several oil holes that can communicate with the lubricating oil channels are provided on the side of the oil storage buffer component. The two sealing rings are located at both ends of the oil storage buffer component. The auxiliary fixing component is detachably fixed to the bottom of the mounting body and is used to limit the movement of the oil storage buffer component. One of the sliding stabilizers is installed inside the auxiliary fixing component.
2. The motion sealing mechanism for stabilizing a vacuum state according to claim 1, characterized in that: There are two lubricating oil passages and two oil injection plugs, and the two lubricating oil passages are arranged symmetrically.
3. The motion sealing mechanism for stabilizing a vacuum state according to claim 2, characterized in that: The oil storage buffer component is provided with four oil passage holes.