A horizontal rotor applied to an ultracentrifuge

Abstract

The utility model relates to centrifuge technical field, specifically disclose a horizontal rotor for ultra speed centrifuge, including rotor body and the cup that hangs of installation on rotor body, the bottom of rotor body is opened with space groove even around, the side of space groove is close to rotor body axle and is installed with telescopic piece no.

Description

Technical Field

[0001] This utility model relates to the field of centrifuge technology, and specifically to a horizontal rotor used in an ultracentrifuge. Background Technology

[0002] As a core component of ultracentrifuges, the horizontal rotor's hanger can tilt horizontally by 90°, allowing samples to settle directly in the middle of the tube bottom for easy extraction. Multiple adapters are available, enabling flexible interchangeability. Due to the high-speed operation of foreign ultracentrifuges, the connection between the hanger and the rotor body must withstand significant centrifugal force, resulting in very high stress at the connection and demanding high-quality materials. To reduce the stress at the connection between the hanger and the rotor body, decrease material requirements, or increase the rotor's lifespan, we provide a horizontal rotor for ultracentrifuges. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a horizontal rotor for use in ultracentrifuges.

[0004] The present invention relates to a horizontal rotor for an ultracentrifuge, comprising a rotor body and a hanging cup mounted on the rotor body. The bottom of the rotor body is provided with uniformly spaced grooves, which are open to the bottom and sides of the rotor body. The space slot is equipped with a telescopic component one by means of a tie rod on the side near the rotor body shaft. Two hanging columns for installing the hanging cup are symmetrically fixedly connected to the surface of the telescopic component one. The cup holder includes a cup body, a hanging cap is threadedly connected to the top of the cup holder, a hanging arm is fixedly connected to the top of the hanging cap, and a hanging hole adapted to the hanging post is provided on the hanging arm. The surface of the cup body has a protruding ring platform, and the interior of the space groove has a movable support groove corresponding to the ring platform, so that the ring platform for hanging the cup can move horizontally in the movable support groove.

[0005] Furthermore, the top and bottom of the ring platform are sloped, and the movable bearing groove has a circular inclined surface on the side near the edge of the rotor body that matches the slope of the ring platform.

[0006] Furthermore, the telescopic component one is provided with a telescopic component two inside, one end of the tension pin is connected to the telescopic component two, and the other end movably passes through the telescopic component one and is connected to the rotor body, and the telescopic component one slides on the tension pin; The two hanging posts are fixedly connected to the surface of the telescopic component.

[0007] Furthermore, two sliding surfaces are symmetrically provided on the top of one surface of the telescopic member; The space slot is provided with a positioning platform adapted to the sliding surface on the side near the center of the rotor body.

[0008] Furthermore, the cup body has an installation ring groove at the top near the inside, and a sealing element is installed at the bottom of the inner wall of the installation ring groove; the hanging cap is threaded into the installation ring groove.

[0009] Furthermore, the bottom of the cap is provided with an annular groove, and a sliding ring is fitted on the inner wall of the annular groove, the sliding ring being slidably connected to the inner wall of the annular groove; The outer diameter of the sliding ring does not exceed the outer diameter of the cap.

[0010] Furthermore, a limiting flange is fixedly connected to the bottom of the annular groove. The width of the limiting flange is smaller than the width of the annular groove. The bottom of the sliding ring protrudes outside the limiting flange. A clearance is provided between the sliding ring and the limiting flange or the top of the annular groove.

[0011] Furthermore, a support column is installed at the center of the bottom of the rotor body by screws. The support column has a conical cavity at its center, and drive pins and transmission pins are symmetrically installed inside the conical cavity.

[0012] Furthermore, the rotor body has several grooves evenly distributed around its edge.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: After the device reaches a certain speed, the hanging cup rotates from a vertical to a horizontal position on the hanging column of the telescopic component. During acceleration, the horizontal hanging cup will generate a greater pulling force than the elastic element under the action of centrifugal force, which will cause the telescopic component to extend. That is, the inclined surface of the ring platform on the hanging cup abuts against the circular inclined surface of the rotor body, thereby effectively transferring the centrifugal force of the hanging cup to the rotor body and reducing the stress at the connection between the hanging cup and the rotor body. Attached Figure Description

[0014] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a top view structural diagram of the rotor body of this utility model; Figure 2 This is a bottom view structural diagram of the rotor body of this utility model; Figure 3 This is a side sectional view of the rotor body of this utility model; Figure 4 This is a half-sectional structural diagram of the rotor body of this utility model after the hanging cup is assembled and used. Figure 5 for Figure 4 A magnified structural diagram at point A; Figure 6 This is a front view schematic diagram of the cup-hanging structure of this utility model; Figure 7 This is a side sectional view of the cup-hanging structure of this utility model; Figure 8 This is a schematic diagram of the sleeve structure of this utility model.

[0015] In the diagram: 1. Rotor body; 1.1. Concave arc; 1.2. Positioning platform; 1.3. Spatial slot; 1.4. Movable bearing slot; 1.5. Bearing platform; 1.6. Circular inclined surface; 2. Cup holder; 2.1. Cup body; 2.1.1. Ring platform; 2.2. Seal; 2.3. Sliding ring; 2.4. Hanging cap; 2.4.1. Hanging hole; 2.4.2. Hanging arm; 2.5. Clearance; 2.6. Mounting ring groove; 2.7. Annular sliding groove; 2.8. Limiting flange; 3. Support column; 4. Drive pin; 5. Transmission pin; 6. Screw; 7. Telescopic component one; 7.1. Hanging column; 7.2. Sliding surface; 7.3. Convex arc surface; 8. Telescopic component two; 9. Tensioner nail. Detailed Implementation

[0016] The following drawings will disclose several embodiments of this utility model. For clarity, many physical details will be described in the following description. However, it should be understood that these physical details should not be used to limit this utility model. That is, in some embodiments of this utility model, these physical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0017] Furthermore, in this utility model, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the utility model. They are merely used to distinguish components or operations described with the same technical terms and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0018] Please see Figures 1-4 The present invention relates to a horizontal rotor for an ultracentrifuge, comprising a rotor body 1 and a hanging cup 2 mounted on the rotor body 1. The bottom of the rotor body 1 is evenly surrounded by a space groove 1.3, which is open to the bottom and sides of the rotor body 1. The space slot 1.3 is equipped with a telescopic component 7 on the side near the axis of the rotor body 1 via a tie rod 9. The surface of the telescopic component 7 is symmetrically fixedly connected with two hanging columns 7.1 for installing the hanging cup 2. The hanging cup 2 includes a cup body 2.1, a hanging cap 2.4 is threadedly connected to the top of the hanging cup 2, a hanging arm 2.4.2 is fixedly connected to the top of the hanging cap 2.4, and a hanging hole 2.4.1 adapted to the hanging post 7.1 is provided on the hanging arm 2.4.2; The surface of the cup body 2.1 is surrounded by a protruding ring platform 2.1.1. The space groove 1.3 has a movable bearing groove 1.4 corresponding to the ring platform 2.1.1. The ring platform 2.1.1 of the hanging cup 2 can move horizontally in the movable bearing groove 1.4. The movable bearing groove 1.4 is circumferentially symmetrical and evenly distributed, mainly providing clearance space for the hanging cup 2 to swing from vertical to horizontal.

[0019] The top and bottom of the ring platform 2.1.1 are set with sloping surfaces, and the movable bearing groove 1.4 is provided with a circular inclined surface 1.6 on the side near the edge of the rotor body 1, which is adapted to the sloping surface of the ring platform 2.1.1.

[0020] Working principle: First, place the device containing the sample in a low-temperature freezer for pre-cooling. After pre-cooling to about 4°C, take it out and gently place it on the drive shaft inside the ultracentrifuge chamber. Then close the door and start the ultracentrifuge. While the device is running, it evacuates the chamber of the ultracentrifuge. When the device reaches a certain speed, the hanging cup 2 rotates from a vertical rotor to a horizontal rotor on the hanging column 7.1 of the telescopic component. During the acceleration process, the horizontal hanging cup 2 will generate a greater pulling force than the elastic element 8 under the action of centrifugal force, which will cause the telescopic component to extend. That is, the inclined surface of the ring platform 2.1.1 on the hanging cup 2 abuts against the circular inclined surface 1.6 of the rotor body 1, thereby effectively transferring the centrifugal force of the hanging cup 2 to the rotor body 1 and reducing the stress at the connection between the hanging cup 2 and the rotor body 1. When the device reaches its maximum speed, the sample is separated and purified while operating at superspeed and subjected to maximum centrifugal force. During the deceleration process of the device, the centrifugal force generated by the hanging cup 2 will be less than the pressure generated by the elastic element 8. As a result, the telescopic component pulls the hanging cup 2 in one direction. After the hanging cup 2 is pulled back in the mounting groove, the frustum on the hanging cup 2 separates from the circular inclined plane 1.6. That is, the hanging cup 2 can swing back from the horizontal position to the initial vertical position in the mounting groove, in preparation for the next centrifugal movement.

[0021] Please see Figure 5 and Figure 8Specifically, the telescopic component 7 is provided with a telescopic component 2 8 inside. One end of the tension pin 9 is connected to the telescopic component 2 8, and the other end movably passes through the telescopic component 7 and is connected to the rotor body 1. The telescopic component 7 slides on the tension pin 9. The two hanging posts 7.1 are fixedly connected to the surface of the telescopic component 7.

[0022] Please see Figure 5 and Figure 8 Furthermore, the top of the surface of the telescopic member 7 is symmetrically provided with two sliding surfaces 7.2; the space groove 1.3 is provided with a positioning platform 1.2 that is adapted to the sliding surface 7.2 on the side near the center of the rotor body 1; its sliding surface 7.2 is symmetrically arranged on both sides of the sleeve 7, forming a single kinematic pair with the positioning platform 1.2 of the rotor body 1, ensuring that the sleeve 7 slides in a single direction.

[0023] Furthermore, the space slot 1.3 is set with a concave arc surface on the side near the center of the rotor body 1, and the sleeve 7 is set with a convex arc surface that matches the concave arc surface at the end near the center of the rotor body 1, which effectively ensures the relative position of the sleeve 7 during assembly.

[0024] Please see Figure 6 and Figure 7 Furthermore, the cup body 2.1 has a mounting ring groove 2.6 near its inner top; the hanging cap 2.4 is threaded into the mounting ring groove 2.6. The bottom of the hanging cap 2.4 has an annular sliding groove 2.7, and a sliding ring 2.3 is fitted on the inner wall of the annular sliding groove 2.7. The sliding ring 2.3 is slidably connected to the inner wall of the annular sliding groove 2.7; the outer diameter of the sliding ring 2.3 does not exceed the outer diameter of the hanging cap 2.4; a sealing element 2.2 is installed at the bottom of the inner wall of the mounting ring groove 2.6. The bottom of the annular groove 2.7 is fixedly connected to a limiting flange 2.8. The width of the limiting flange 2.8 is smaller than the width of the annular groove 2.7. The bottom of the sliding ring 2.3 protrudes outside the limiting flange 2.8. A clearance 2.5 is provided between the sliding ring 2.3 and the limiting flange 2.8 or the top of the annular groove. The hanging cup 2 body, as the main component of the hanging cup 2, is made of the same material as the rotor body 1. Its main function is to place the sample and transfer the centrifugal load of the sample and itself to the rotor body 1. For seal 2.2, you can choose a general standard sealing element that is corrosion-resistant, oxidation-resistant, and acid and alkali-resistant. By tightening the hanging cap 2.4, the compression rate of seal 2.2 can reach 10%-15% to achieve a conventional sealing effect. Its sliding ring 2.3 is installed in the annular groove 2.7 of the cap 2.4 by an expansion-type special clamp. When there is centrifugal force, the sliding ring 2.3 will slide down to further compress the seal 2.2 to meet the vacuum level sealing requirements. Its clearance 2.5 is mainly used to ensure that the compression rate of the seal 2.2 reaches 20%-30% to meet the vacuum sealing requirements.

[0025] Furthermore, a support column 3 is installed at the center of the bottom of the rotor body 1 by screws 6. The support column 3 has a conical cavity in the center. A drive pin 4 and a transmission pin 5 are symmetrically installed inside the conical cavity. The drive pin 4 is used to ensure that the rotational torque generated by the motor can be stably and efficiently transmitted to the support column 3 through the drive. The transmission pin 5 facilitates better transmission of the rotational torque to the rotor body 1.

[0026] The rotor body 1 has several grooves 1.1 evenly arranged around its edge; its main function is to remove the parts of the rotor body 1 with less stress in order to achieve the purpose of structural weight reduction.

[0027] The above are merely embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A horizontal rotor for use in an ultracentrifuge, comprising a rotor body (1) and a hanging cup (2) mounted on the rotor body (1), characterized in that: The bottom of the rotor body (1) is uniformly surrounded by a space groove (1.3), and the space groove (1.3) is set to be open with the bottom and side of the rotor body (1); The space slot (1.3) is equipped with a telescopic component (7) on the side near the axis of the rotor body (1) by a tie rod (9). The surface of the telescopic component (7) is symmetrically fixed with two hanging columns (7.1) for installing the hanging cup (2). The hanging cup (2) includes a cup body (2.1), and a hanging cap (2.4) is threadedly connected to the top of the hanging cup (2). A hanging arm (2.4.2) is fixedly connected to the top of the hanging cap (2.4). A hanging hole (2.4.1) adapted to the hanging post (7.1) is provided on the hanging arm (2.4.2). The surface of the cup body (2.1) is surrounded by a circumferential platform. 2.1.1), the space groove (1.3) is provided with a movable bearing groove (1.4) corresponding to the annular platform (2.1.1), and the annular platform (2) of the hanging cup (2) 2.1.1) It can move horizontally in the movable bearing groove (1.4).

2. A horizontal rotor for an ultracentrifuge according to claim 1, characterized in that: The top and bottom of the ring platform (2.1.1) are set with sloping surfaces, and the movable bearing groove (1.4) is provided with a circular inclined surface (1.6) on the side near the edge of the rotor body (1) that is adapted to the sloping surface of the ring platform (2.1.1).

3. A horizontal rotor for an ultracentrifuge according to claim 1, characterized in that: The telescopic component one (7) is provided with a telescopic component two (8) inside. One end of the bearing pin (9) is connected to the telescopic component two (8), and the other end is movably connected through the telescopic component one (7) to the rotor body (1). The telescopic component one (7) slides on the bearing pin (9). The two hanging posts (7.1) are fixedly connected to the surface of the telescopic component (7).

4. A horizontal rotor for an ultracentrifuge according to claim 3, characterized in that: The top of the surface of the telescopic component (7) has two symmetrical sliding surfaces (7.2). The space slot (1.3) is provided with a positioning platform (1.2) adapted to the sliding surface (7.2) on one side near the center of the rotor body (1).

5. A horizontal rotor for an ultracentrifuge according to claim 1, characterized in that: The cup body (2.1) has an installation ring groove (2.6) at the top near the inside, and a sealing element (2.2) is installed at the bottom of the inner wall of the installation ring groove (2.6); the hanging cap (2.4) is threaded into the installation ring groove (2.6).

6. A horizontal rotor for an ultracentrifuge according to claim 3, characterized in that: The bottom of the cap (2.4) is provided with an annular groove (2.7), and a sliding ring (2.3) is fitted on the inner wall of the annular groove (2.7). The sliding ring (2.3) is slidably connected to the inner wall of the annular groove (2.7). The outer diameter of the sliding ring (2.3) does not exceed the outer diameter of the cap (2.4).

7. A horizontal rotor for an ultracentrifuge according to claim 6, characterized in that: The bottom of the annular groove (2.7) is fixedly connected to a limiting flange (2.8), the width of the limiting flange (2.8) is smaller than the width of the annular groove (2.7), the bottom of the sliding ring (2.3) protrudes outward from the limiting flange (2.8), and a clearance (2.5) is provided between the sliding ring (2.3) and the limiting flange (2.8) or the top of the annular groove.

8. A horizontal rotor for use in an ultracentrifuge according to claim 1, characterized in that: A support column (3) is installed at the center of the bottom of the rotor body (1) by screws (6). A conical cavity is provided in the center of the support column (3). A drive pin (4) and a transmission pin (5) are symmetrically installed inside the conical cavity.

9. A horizontal rotor for an ultracentrifuge according to claim 1, characterized in that: The rotor body (1) has several grooves (1.1) evenly arranged around its edge.

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