CN214848219U - Improved device of variable ceramic vacuum capacitor - Google Patents
Improved device of variable ceramic vacuum capacitor Download PDFInfo
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- CN214848219U CN214848219U CN202121393730.4U CN202121393730U CN214848219U CN 214848219 U CN214848219 U CN 214848219U CN 202121393730 U CN202121393730 U CN 202121393730U CN 214848219 U CN214848219 U CN 214848219U
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- annular groove
- support sleeve
- screw rod
- ceramic vacuum
- vacuum capacitor
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Abstract
The utility model discloses a variable ceramic vacuum capacitor improvement device, which comprises a capacitor body, wherein the upper part of the capacitor body is provided with a support sleeve, a rotating screw rod is inserted and connected in the support sleeve, and a turntable is welded on the surface of the upper part of the rotating screw rod; the utility model discloses in, through rotating the screw rod and being connected with the support sleeve interlude, make the carousel that rotates the screw rod stretch into the support sleeve terminal surface and correspond the intracavity that holds of seting up, and through the terminal surface laminating with collar and support sleeve, cooperation crew cut screw runs through mounting hole and support sleeve fixed connection, make two faces of carousel encircle that a plurality of steel balls of welded stretch into the first annular groove that hold the chamber and the second annular groove of collar respectively, make the steel ball of carousel replace plane ball bearing with gliding mode in first annular groove and second annular groove, it is light and handy to have a structure, prevent the damaged advantage that drops of ball, thereby promote reliability and the durability that rotates screw rod pivoted state.
Description
Technical Field
The utility model relates to a ceramic capacitor technical field especially relates to a variable ceramic vacuum capacitor improvement device.
Background
The ceramic capacitor is a general term of a capacitor taking a ceramic material as a medium, has the advantages of higher use temperature, large specific capacity, good moisture resistance and smaller dielectric loss, can select a temperature coefficient of capacitance in a large range, and the like, and is widely used in electronic circuits.
At present, the support sleeve of the variable ceramic vacuum capacitor is connected with the rotating screw rod through the planar ball bearing, the pull rod inside the capacitor is pulled through the rotation of the rotating screw rod, the electrode group is driven to move, the capacity is adjusted, and the planar ball bearing is limited in service life and difficult to disassemble and replace, so that the service life of the variable ceramic vacuum capacitor is shortened.
Therefore, an improved device of a variable ceramic vacuum capacitor is provided, which has the advantage of good durability, and further solves the problems in the background art.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing an improved device of a variable ceramic vacuum capacitor.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a variable pottery vacuum capacitor improvement device, includes capacitor body, capacitor body's upper portion is provided with the support sleeve, and alternates in the support sleeve and be connected with the rotation screw rod, it has the carousel to rotate screw rod upper portion surface welding, and the periphery of carousel is located the support sleeve top surface and has seted up and hold the chamber, the opening part that holds the chamber has the collar through grub screw fastening installation, and collar and rotation screw rod nested connection, hold the inboard bottom surface in chamber and seted up first annular groove, the second annular groove has been seted up towards the one side that holds the chamber to the collar, two faces of carousel all encircle the welding have a plurality of steel balls, and a plurality of steel balls of two faces of carousel stretch into respectively in first annular groove and the second annular groove.
As a further description of the above technical solution: the periphery of the opening of the accommodating cavity is connected with a first sealing ring in a gluing mode, a second sealing ring is arranged below the first sealing ring and positioned on the top surface of the inner side of the supporting sleeve in a gluing mode, and the inner ring of the second sealing ring is connected with the rotating screw in a sleeved mode.
As a further description of the above technical solution: the surface of the mounting ring is provided with a plurality of mounting holes in a surrounding manner, and the top surface of the supporting sleeve is provided with a plurality of thread grooves corresponding to the mounting holes.
As a further description of the above technical solution: the cross sections of the first annular groove and the second annular groove are both arc-shaped structures.
As a further description of the above technical solution: the center department that holds the inboard bottom surface in chamber corresponds rotates the screw rod and has seted up the hole of stepping down, the top surface of second sealing washer is provided with the bulge loop of rubber material, and the bulge loop extends to the downthehole side of stepping down.
As a further description of the above technical solution: and an extension column is welded on one surface of the steel ball facing the turntable.
The utility model discloses following beneficial effect has:
in the utility model, the rotary screw rod is connected with the support sleeve in an inserting way, the rotary disc of the rotary screw rod is enabled to extend into the accommodating cavity correspondingly arranged on the end surface of the support sleeve, the mounting ring is attached to the end surface of the support sleeve, and the flat head screw is matched to penetrate through the mounting hole and fixedly connected with the support sleeve, so that two surfaces of the rotary disc are enabled to respectively extend into the first annular groove of the accommodating cavity and the second annular groove of the mounting ring by surrounding a plurality of welded steel balls, the steel balls of the rotary disc are enabled to replace the plane ball bearing in the first annular groove and the second annular groove in a sliding way, the structure is light, the rolling ball is prevented from being damaged and falling off, the reliability and the durability of the rotary state of the rotary screw rod are improved, meanwhile, the first sealing ring and the second sealing ring are respectively connected with the end surface and the inner top surface of the support sleeve in a gluing way, the sealing performance of the joint of the support sleeve and the rotary screw rod can be improved, the invasion of external dust and impurities is reduced, thereby further ensuring the reliability and the durability of the rotating state of the rotating screw.
Drawings
Fig. 1 is a schematic structural view of an improved device of a variable ceramic vacuum capacitor according to the present invention;
FIG. 2 is a schematic view of a mounting ring structure of an improved device of a variable ceramic vacuum capacitor according to the present invention;
fig. 3 is a schematic view of a turntable structure of the improved device of the variable ceramic vacuum capacitor of the present invention.
Illustration of the drawings:
1. a capacitor body; 2. a support sleeve; 3. rotating the screw; 4. a turntable; 5. a first seal ring; 6. a first annular groove; 7. a steel ball; 8. a second seal ring; 9. a mounting ring; 10. a second annular groove; 11. an accommodating chamber; 12. and (7) installing holes.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
According to an embodiment of the utility model, a variable ceramic vacuum capacitor improvement device is provided.
Referring to the drawings and the detailed description, as shown in fig. 1-3, an improved device for a variable ceramic vacuum capacitor according to an embodiment of the present invention comprises a capacitor body 1, a supporting sleeve 2 is disposed on the upper portion of the capacitor body 1, a rotating screw 3 is inserted into the supporting sleeve 2, a rotary plate 4 is welded on the surface of the upper portion of the rotating screw 3, a receiving cavity 11 is formed on the top surface of the supporting sleeve 2 at the periphery of the rotary plate 4, a mounting ring 9 is tightly mounted at the opening of the receiving cavity 11 by a flat head screw, the mounting ring 9 is connected with the rotating screw 3 in a nested manner, a first annular groove 6 is formed on the bottom surface of the inner side of the receiving cavity 11, a second annular groove 10 is formed on the side of the mounting ring 9 facing the receiving cavity 11, a plurality of steel balls 7 are welded around both surfaces of the rotary plate 4, and the plurality of steel balls 7 on both surfaces of the rotary plate 4 respectively extend into the first annular groove 6 and the second annular groove 10, the rotary screw 3 is connected with the supporting sleeve 2 in an inserting mode, so that the rotary table 4 of the rotary screw 3 extends into the accommodating cavity 11 correspondingly formed in the end face of the supporting sleeve 2, the mounting ring 9 is attached to the end face of the supporting sleeve 2, and the flat head screws penetrate through the mounting holes 12 and are fixedly connected with the supporting sleeve 2 in a matching mode, so that a plurality of steel balls 7 which are welded on two faces of the rotary table 4 in a surrounding mode respectively extend into the first annular groove 6 of the accommodating cavity 11 and the second annular groove 10 of the mounting ring 9, the steel balls 7 of the rotary table 4 replace plane ball bearings in the first annular groove 6 and the second annular groove 10 in a sliding mode, the rotary screw has the advantages of being light in structure and preventing the rolling balls from being damaged and falling off, and the reliability and the durability of the rotary state of the rotary screw 3 are improved;
in one embodiment, the periphery of the opening of the accommodating cavity 11 is connected with a first sealing ring 5 in a gluing mode, a second sealing ring 8 is connected to the lower portion of the first sealing ring 5 on the inner side top surface of the supporting sleeve 2 in a gluing mode, the inner ring of the second sealing ring 8 is sleeved with the rotating screw 3, the first sealing ring 5 and the second sealing ring 8 are connected to the end surface and the inner side top surface of the supporting sleeve 2 in a gluing mode respectively, the sealing performance of the joint of the supporting sleeve 2 and the rotating screw 3 can be improved, the invasion of external dust and impurities is reduced, and therefore the reliability and the durability of the rotating state of the rotating screw 3 are further guaranteed.
In one embodiment, the surface of the mounting ring 9 is circumferentially provided with a plurality of mounting holes 12, the top surface of the support sleeve 2 is provided with a plurality of threaded grooves corresponding to the mounting holes 12, and the mounting ring 9 is mounted by flat head screws penetrating through the mounting holes 12 and extending into the threaded grooves.
In one embodiment, the cross sections of the first annular groove 6 and the second annular groove 10 are both circular arc structures, and the contact fit with the steel ball 7 can be increased through the first annular groove 6 and the second annular groove 10 with the circular arc structures in the cross sections.
In one embodiment, the center of the bottom surface of the inner side of the accommodating cavity 11 corresponds to the rotating screw 3 and is provided with a yielding hole, the top surface of the second sealing ring 8 is provided with a convex ring made of rubber, the convex ring extends to the inner side of the yielding hole, the clearance between the yielding hole and the rotating screw 3 can be blocked through the convex ring, the sealing of the accommodating cavity 11 is facilitated, and therefore lubricating grease can be conveniently added into the accommodating cavity 11 (the smoothness of the sliding of the steel ball 7, the first annular groove 6 and the second annular groove 10 is increased).
In one embodiment, an extension column is welded on the surface of the steel ball 7 facing the turntable 4, and the distance between the steel ball 7 and the turntable 4 can be increased through the extension column, so that the rotation of the turntable 4 is facilitated.
The working principle is as follows:
when in use, the rotary screw 3 is connected with the support sleeve 2 in an inserting way, the rotary disc 4 of the rotary screw 3 is enabled to extend into the accommodating cavity 11 correspondingly arranged on the end surface of the support sleeve 2, the mounting ring 9 is attached to the end surface of the support sleeve 2, the flat head screw is matched to penetrate through the mounting hole 12 and fixedly connected with the support sleeve 2, two surfaces of the rotary disc 4 are enabled to extend into the first annular groove 6 of the accommodating cavity 11 and the second annular groove 10 of the mounting ring 9 respectively in a surrounding way, and the steel balls 7 of the rotary disc 4 are enabled to replace the plane ball bearings in the first annular groove 6 and the second annular groove 10 in a sliding way, so that the rotary screw has the advantages of light structure and anti-rolling ball damage and anti-falling, the reliability and the durability of the rotary state of the rotary screw 3 are improved, and meanwhile, the first sealing ring 5 and the second sealing ring 8 are respectively connected with the end surface and the top surface on the inner side of the support sleeve 2 in a gluing way, can increase the leakproofness of support sleeve 2 and 3 junctions of rotation screw rod, reduce the invasion of external dust and impurity to further ensure the reliability and the durability of rotation screw rod 3 rotating state.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.
Claims (6)
1. An improved device of a variable ceramic vacuum capacitor comprises a capacitor body (1), and is characterized in that: the upper part of the capacitor body (1) is provided with a supporting sleeve (2), a rotating screw (3) is inserted and connected in the supporting sleeve (2), the surface of the upper part of the rotating screw (3) is welded with a turntable (4), and the periphery of the turntable (4) is positioned on the top surface of the supporting sleeve (2) and is provided with an accommodating cavity (11), an opening of the accommodating cavity (11) is fixedly provided with a mounting ring (9) through a flat head screw, the mounting ring (9) is nested with the rotary screw (3), the bottom surface of the inner side of the containing cavity (11) is provided with a first annular groove (6), a second annular groove (10) is arranged on one surface of the mounting ring (9) facing the containing cavity (11), a plurality of steel balls (7) are welded on the two surfaces of the turntable (4) in a surrounding way, and a plurality of steel balls (7) on two surfaces of the turntable (4) respectively extend into the first annular groove (6) and the second annular groove (10).
2. The improved variable ceramic vacuum capacitor device of claim 1, wherein: the periphery of the opening of the accommodating cavity (11) is connected with a first sealing ring (5) in a gluing mode, the lower portion of the first sealing ring (5) is connected with a second sealing ring (8) in a gluing mode on the inner side top surface of the supporting sleeve (2), and the inner ring of the second sealing ring (8) is connected with the rotating screw rod (3) in a sleeved mode.
3. The improved variable ceramic vacuum capacitor device of claim 1, wherein: the surface of the mounting ring (9) is provided with a plurality of mounting holes (12) in a surrounding manner, and the top surface of the supporting sleeve (2) is provided with a plurality of thread grooves corresponding to the mounting holes (12).
4. The improved variable ceramic vacuum capacitor device of claim 1, wherein: the sections of the first annular groove (6) and the second annular groove (10) are both arc-shaped structures.
5. The improved variable ceramic vacuum capacitor device of claim 2, wherein: the center department that holds the inboard bottom surface of chamber (11) corresponds rotates screw rod (3) and has seted up the hole of stepping down, the top surface of second sealing washer (8) is provided with the bulge loop of rubber material, and the bulge loop extends to the downthehole side of stepping down.
6. The improved variable ceramic vacuum capacitor device of claim 1, wherein: and an extension column is welded on one surface of the steel ball (7) facing the turntable (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121393730.4U CN214848219U (en) | 2021-06-22 | 2021-06-22 | Improved device of variable ceramic vacuum capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121393730.4U CN214848219U (en) | 2021-06-22 | 2021-06-22 | Improved device of variable ceramic vacuum capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214848219U true CN214848219U (en) | 2021-11-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121393730.4U Active CN214848219U (en) | 2021-06-22 | 2021-06-22 | Improved device of variable ceramic vacuum capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214848219U (en) |
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2021
- 2021-06-22 CN CN202121393730.4U patent/CN214848219U/en active Active
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