Three position vacuum tight rotary mechanism

Abstract

The utility model relates to a kind of three-position vacuum sealed rotary mechanism, belong to rotary mechanism technical field;Including vacuum cavity, in the upper and lower ends opening of vacuum cavity respectively fixedly set with end cap and base, fixedly set with baffle at the inside middle part height of vacuum cavity, the inside of vacuum cavity is separated into two spaces by baffle, three through holes are provided on baffle;First rotary cylinder is fixedly set with in the base lower end, the rotary platform of first rotary cylinder is fixedly set with second rotary cylinder, the rotary platform of second rotary cylinder is fixedly set with a vertical rotating shaft, rotating shaft upper end extends to baffle upside after passing through base and baffle upwards, rotating shaft upper end is fixedly set with rotor, rotor is in contact with baffle, rotor shields one of through hole;Solved the mechanism cost higher problem of the component rotation in the inside of vacuum cavity driven by outside in current vacuum sealed environment.

Description

Technical Field

[0001] This utility model belongs to the field of rotating mechanism technology, specifically relating to a three-position vacuum-sealed rotating mechanism. Background Technology

[0002] With the development of society and technology, non-standard customized design to meet customer needs is becoming increasingly common. Rotary mechanism design is very common in non-standard design. The rotary mechanism in a vacuum sealed system is very important in vacuum system design, and cost control is also a critical point. At present, the common rotary mechanism drive is mainly motor drive. However, for cases where the rotation position is fixed and only three rotation positions are required, the use of motor is relatively expensive. In response to this situation, this three-position sealed vacuum rotary mechanism was designed to solve the problem of rotating the internal components of the vacuum chamber by external drive in a vacuum sealed environment. Utility Model Content

[0003] This invention overcomes the shortcomings of existing technologies and proposes a three-position vacuum-sealed rotation mechanism; it solves the problem of high cost of current mechanisms that drive the rotation of internal components of the vacuum chamber from the outside in a vacuum-sealed environment.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution.

[0005] A three-position vacuum-sealed rotary mechanism includes a vacuum chamber. End caps and a base are fixedly installed at the upper and lower openings of the vacuum chamber, respectively. A baffle is fixedly installed at the middle height of the inner side of the vacuum chamber, dividing the interior of the vacuum chamber into upper and lower spaces. Three through holes are provided on the baffle. A first rotary cylinder is fixedly installed at the lower end of the base. A second rotary cylinder is fixedly installed on the rotating platform of the first rotary cylinder. A vertical rotating shaft is fixedly installed on the rotating platform of the second rotary cylinder. The upper end of the rotating shaft passes upward through the base and the baffle and extends to the upper side of the baffle. A rotating body is fixedly installed at the upper end of the rotating shaft. The rotating body contacts the baffle and blocks one of the through holes.

[0006] Furthermore, the vacuum chamber is a cylindrical structure with openings at both the top and bottom, and the end caps and base are both horizontally arranged circular plate structures.

[0007] Furthermore, the baffle is a horizontally arranged circular plate structure, and the outer side of the baffle is in close contact with the inner wall of the vacuum cavity.

[0008] Furthermore, two symmetrical support holes are provided on the baffle; two symmetrical vertical support columns are fixedly installed on the upper surface of the base, with the upper ends of the two support columns passing through the two support holes on the baffle respectively. The supporting plane at the upper end of the support column supports the baffle, and a locking nut is screwed to the upper end of the support column where it passes through the baffle, thereby fixing the baffle to the two support columns and fixing the baffle through the two support columns.

[0009] Furthermore, the first rotary cylinder is fixedly connected to the lower end face of the base via a fixing plate.

[0010] Furthermore, the rotating platform of the first rotary cylinder is vertically upward, and the second rotary cylinder is located above the first rotary cylinder. The rotating platform of the first rotary cylinder is fixedly connected to the lower end of the cylinder body of the second rotary cylinder through a cylinder connecting plate.

[0011] Furthermore, the rotating platform of the second rotary cylinder is vertically upward, and the lower end of the rotating shaft is fixedly connected to the rotating platform of the second rotary cylinder.

[0012] Furthermore, the rotating shafts are rotatably inserted into the center of the base and the baffle, and the rotating shafts are connected to the base and the baffle through a magnetic fluid rotary sealing assembly.

[0013] The beneficial effects of this utility model compared to the prior art are as follows: 1. A magnetic fluid rotary sealing assembly is used to ensure vacuum within the chamber.

[0014] 2. The rotation position is controlled by a dual rotary cylinder, resulting in lower cost.

[0015] 3. Installation is simple and safe as it does not use a motor drive.

[0016] 4. This utility model has a reasonable, simple and reliable structure, and can realize three-position sealed rotation. Attached Figure Description

[0017] The present invention will now be described in further detail with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 yes Figure 1 AA section view in the middle; Figure 3 yes Figure 1 BB section view in the middle; Among them, 1 is the end cap, 2 is the vacuum chamber, 3 is the base, 4 is the magnetohydrodynamic rotary sealing assembly, 5 is the first rotary cylinder, 6 is the second rotary cylinder, 7 is the rotating shaft, 8 is the cylinder connecting plate, 9 is the support column, 10 is the baffle, and 11 is the rotating body. Detailed Implementation

[0018] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, this utility model will be further described in detail with reference to the embodiments and accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of this utility model and are not intended to limit it. The technical solution of this utility model will be described in detail below with reference to the embodiments and accompanying drawings, but the scope of protection is not limited thereto.

[0019] like Figure 1 As shown in Figure 3, this utility model provides a three-position vacuum-sealed rotary mechanism, including a vacuum chamber 2. End caps 1 and bases 3 are fixedly installed at the upper and lower openings of the vacuum chamber 2, respectively. A baffle 10 is fixedly installed at the middle height of the inner side of the vacuum chamber 2, dividing the interior of the vacuum chamber 2 into upper and lower spaces. Three through holes are provided on the baffle 10. A first rotary cylinder 5 is fixedly installed at the lower end of the base. A second rotary cylinder 6 is fixedly installed on the rotating platform of the first rotary cylinder 5. A vertical rotating shaft 7 is fixedly installed on the rotating platform of the second rotary cylinder 6. The upper end of the rotating shaft 7 passes upward through the base 3 and the baffle 10 and extends to the upper side of the baffle 10. A rotating body 11 is fixedly installed at the upper end of the rotating shaft 7. The rotating body 11 contacts the baffle 10 and blocks one of the through holes.

[0020] The vacuum chamber 2 is a cylindrical structure with openings at both the top and bottom, and the end cap 1 and the base 3 are both horizontally arranged circular plate structures.

[0021] The baffle 10 is a horizontally arranged circular plate structure, with its outer surface in close contact with the inner wall of the vacuum chamber 2. Two symmetrical support holes are provided on the baffle 10. Two symmetrical vertical support columns 9 are fixedly installed on the upper surface of the base 3. The upper ends of the two support columns 9 pass through the two support holes on the baffle 10, and the supporting planes at the upper ends of the support columns 9 support the baffle 10. Locking nuts are screwed onto the upper ends of the support columns 9 that pass through the baffle 10, thereby fixing the baffle 10 to the two support columns 9 and securing the baffle 10.

[0022] The first rotary cylinder 5 is fixedly connected to the lower end face of the base 3 via a fixing plate. The rotating platform of the first rotary cylinder 5 is vertically upward, and the second rotary cylinder 6 is located above the first rotary cylinder 5. The rotating platform of the first rotary cylinder 5 is fixedly connected to the lower end of the cylinder body of the second rotary cylinder 6 via a cylinder connecting plate 8. The rotating platform of the second rotary cylinder 6 is vertically upward, and the lower end of the rotating shaft 7 is fixedly connected to the rotating platform of the second rotary cylinder 6.

[0023] The rotating shaft 7 is rotatably inserted into the center of the base 3 and the baffle 10 respectively. The rotating shaft 7 is connected to the base 3 and the baffle 10 through the magnetic fluid rotating sealing assembly 4. The magnetic fluid rotating seal ensures the sealing of the connection.

[0024] When installing the end cap 1, vacuum chamber 2, base 3, and magnetohydrodynamic rotary sealing assembly 4, the vacuum chamber requirements must be met, and the connections must be secure.

[0025] When neither the first rotary cylinder 5 nor the second rotary cylinder 6 is in operation, the rotating body 11 blocks the first through hole on the baffle 10. At this time, the upper and lower spaces inside the vacuum chamber 2 are connected through the second and third through holes.

[0026] When the first rotary cylinder 5 is activated and the second rotary cylinder 6 is not activated, the first rotary cylinder 5 drives the second rotary cylinder 6 to rotate, the second rotary cylinder 6 drives the rotating shaft 7 to rotate synchronously, and the rotating shaft 7 drives the rotating body 11 to rotate synchronously. At this time, the rotating body 11 rotates by a set angle, and the rotating body 11 blocks the second through hole on the baffle 10. At this time, the upper and lower spaces inside the vacuum chamber 2 are connected through the first through hole and the third through hole.

[0027] When both the first rotary cylinder 5 and the second rotary cylinder 6 are activated, the first rotary cylinder 5 drives the second rotary cylinder 6 to rotate by a set angle. After the second rotary cylinder 6 rotates by a set angle along with the first rotary cylinder 5, it also rotates by a set angle, thereby causing the rotating shaft 7 to rotate by two set angles. The rotating shaft 7 drives the rotating body 11 to rotate by two set angles. At this time, the rotating body 11 blocks the third through hole on the baffle 10. At this time, the upper and lower spaces inside the vacuum chamber 2 are connected through the first through hole and the second through hole.

[0028] The two rotary cylinders can stop at three positions by rotating at different angles. The first position is when both rotary cylinders are retracted, the second position is when the first rotary cylinder 5 is extended, and the third position is when both rotary cylinders are extended simultaneously.

[0029] This utility model has a simple and reliable structure, reasonable installation and debugging, effectively realizes three-position rotation in a vacuum-sealed environment, and has low production cost and high reliability.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A three-position vacuum-sealed rotary mechanism, characterized in that: The vacuum chamber (2) includes an end cap (1) and a base (3) fixedly installed at the upper and lower openings of the vacuum chamber (2). A baffle (10) is fixedly installed at the middle height of the inner side of the vacuum chamber (2). The baffle (10) divides the interior of the vacuum chamber (2) into upper and lower spaces. Three through holes are provided on the baffle (10). A first rotary cylinder (5) is fixedly installed at the lower end of the base (3). A second rotary cylinder (6) is fixedly installed on the rotating platform of the first rotary cylinder (5). A vertical rotating shaft (7) is fixedly installed on the rotating platform of the second rotary cylinder (6). The upper end of the rotating shaft (7) passes through the base (3) and the baffle (10) and extends to the upper side of the baffle (10). A rotating body (11) is fixedly installed at the upper end of the rotating shaft (7). The rotating body (11) contacts the baffle (10) and blocks one of the through holes.

2. The three-position vacuum-sealed rotary mechanism according to claim 1, characterized in that: The vacuum cavity (2) is a cylindrical structure with openings at both the top and bottom ends, and the end cap (1) and the base (3) are both horizontally arranged circular plate structures.

3. The three-position vacuum-sealed rotary mechanism according to claim 1, characterized in that: The baffle (10) is a horizontally arranged circular plate structure, and the outer side of the baffle (10) is in close contact with the inner wall of the vacuum cavity (2).

4. The three-position vacuum-sealed rotary mechanism according to claim 1, characterized in that: Two symmetrical support holes are provided on the baffle (10); two symmetrical vertical support columns (9) are fixedly provided on the upper surface of the base (3). The upper ends of the two support columns (9) pass through the two support holes on the baffle (10) respectively. The supporting plane at the upper end of the support column (9) supports the baffle (10). A locking nut is screwed into the upper end of the support column (9) that passes through the baffle (10), thereby fixing the baffle (10) to the two support columns (9) and fixing the baffle (10) through the two support columns (9).

5. A three-position vacuum-sealed rotary mechanism according to claim 1, characterized in that: The first rotary cylinder (5) is fixedly connected to the lower end face of the base (3) via a fixing plate.

6. A three-position vacuum-sealed rotary mechanism according to claim 1, characterized in that: The rotating platform of the first rotary cylinder (5) is vertically upward, and the second rotary cylinder (6) is located above the first rotary cylinder (5). The rotating platform of the first rotary cylinder (5) is fixedly connected to the lower end of the cylinder body of the second rotary cylinder (6) through the cylinder connecting plate (8).

7. A three-position vacuum-sealed rotary mechanism according to claim 1, characterized in that: The rotating platform of the second rotary cylinder (6) is vertically upward, and the lower end of the rotating shaft (7) is fixedly connected to the rotating platform of the second rotary cylinder (6).

8. A three-position vacuum-sealed rotary mechanism according to claim 1, characterized in that: The rotating shaft (7) is rotatably inserted into the center of the base (3) and the baffle (10), and the rotating shaft (7) is connected to the base (3) and the baffle (10) through the magnetic fluid rotating sealing assembly (4).

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