Horizontal rotor for centrifugal machine

Abstract

The utility model discloses a horizontal rotor for a centrifugal machine, which relates to the technical field of centrifugal machine rotors and comprises a horizontal rotor frame, the horizontal rotor frame comprises a central mounting disc, four groups of rotor frame branches are uniformly arranged on the periphery of the central mounting disc, and the rotor frame branches are Y-shaped. A first transition fillet is arranged at the joint of the center installation disc and the rotor frame branch, and a second transition fillet is arranged at the head of the rotor frame branch. Transition is carried out between the center installation disc and the rotor frame branches through the first transition fillets, the heads of the rotor frame branches are arranged to be the second arc-shaped transition fillets, the stress concentration degree can be effectively reduced through the proper fillet radius, and the reinforcing ribs are installed at the bottoms of the rotor frame branches and the center installation disc, so that the stress concentration degree can be effectively reduced. Deformation and metal fatigue risks under the action of high centrifugal force are reduced, transition is carried out between the reinforcing ribs and the rotor frame branches and between the reinforcing ribs and the center mounting disc through gradient slopes, and stress concentration caused by sudden size changes is avoided.

Description

Technical Field

[0001] This utility model relates to the field of centrifuge rotor technology, specifically a horizontal rotor for centrifuges. Background Technology

[0002] A horizontal rotor is a type of centrifuge rotor. Its main characteristic is that during rotation, the centrifuge tubes gradually turn from a vertical position to a horizontal position. Existing horizontal rotors suffer from stress concentration during use, which seriously affects the centrifugation effect.

[0003] Patent document CN213762353U discloses a horizontal rotor for automated centrifuges. It mainly considers how to make the horizontal rotor easy to disassemble and replace, with long service life and high repeatability, but does not consider how to effectively reduce stress concentration, enhance the overall structural strength of the rotor, and reduce the risk of deformation and metal fatigue under high centrifugal force. Utility Model Content

[0004] The purpose of this invention is to provide a horizontal rotor for centrifuges to solve the problems in the prior art of effectively reducing stress concentration, enhancing the overall structural strength of the rotor, and reducing the risk of deformation and metal fatigue under high centrifugal force.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a horizontal rotor for a centrifuge, comprising a horizontal rotor frame, the horizontal rotor frame including a central mounting plate, four sets of rotor frame branches evenly arranged around the periphery of the central mounting plate, the rotor frame branches being Y-shaped, a transition fillet one being provided at the connection between the central mounting plate and the rotor frame branches, a transition fillet two being provided at the head of the rotor frame branches, reinforcing ribs being installed at the bottom of the rotor frame branches and the central mounting plate, and a gradual slope being provided between the reinforcing ribs and the rotor frame branches and the central mounting plate.

[0006] Preferably, a basket is installed between the two sets of rotor frame branches, and two sets of centrifuge tube insert plates are provided inside the basket. Multiple sets of centrifuge tube placement slots are opened inside the centrifuge tube insert plates for placing centrifuge tubes.

[0007] Preferably, the basket is equipped with four sets of fixing components. The fixing components include two sets of fixing blocks installed on the inner wall of the basket. The two sets of fixing blocks are located above and below the centrifuge tube insert plate, respectively. A miniature electric actuator is installed on the side of the two sets of fixing blocks near the centrifuge tube insert plate. A clamp is installed at the output end of the miniature electric actuator, and the clamp is used to fix the position of the centrifuge tube insert plate.

[0008] Preferably, the inner wall of the basket is provided with a sliding groove for placing centrifuge tube inserts.

[0009] Preferably, the outer walls on both sides of the suspended basket are equipped with connecting ears, and the connecting ears have slots inside.

[0010] Preferably, the rotor frame branch has a through hole inside, the through hole corresponds to the position of the connecting ear, and the through hole is connected to the slot by a pin.

[0011] Preferably, the central mounting plate has mounting holes inside for fixing the horizontal rotor frame to the centrifuge.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. In this utility model, a transition fillet is used between the central mounting plate and the rotor frame branch. The head of the rotor frame branch is set as an arc-shaped transition fillet. The appropriate fillet radius can effectively reduce the stress concentration. Furthermore, reinforcing ribs are installed at the bottom of the rotor frame branch and the central mounting plate, which can effectively enhance the overall structural strength of the rotor and reduce the risk of deformation and metal fatigue under high centrifugal force. The reinforcing ribs are transitioned to the rotor frame branch and the central mounting plate through a gradual slope to avoid stress concentration caused by sudden dimensional changes.

[0014] 2. This utility model inserts the corresponding centrifuge tube insert plate into the slide groove according to the specific diameter of the centrifuge tube. Then, the miniature electric actuator extends, driving the clamping plate closer to the centrifuge tube insert plate until the centrifuge tube insert plate is firmly clamped between the two sets of clamping plates. By quickly replacing different centrifuge tube insert plates, it can adapt to centrifuge tubes of different sizes, improving the flexibility of the horizontal rotor frame. The inserted centrifuge tube insert plate is reinforced by the miniature electric actuator and clamping plates, improving the stability of the centrifuge tube insert plate and preventing it from affecting the centrifugation effect. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a three-dimensional structural diagram of the horizontal rotor frame of this utility model;

[0017] Figure 3 This is a three-dimensional structural diagram of the centrifuge tube insert plate of this utility model;

[0018] Figure 4 This is a cross-sectional structural diagram of the centrifuge tube insert plate of this utility model;

[0019] Figure 5 For the present utility model Figure 4 A schematic diagram of the planar structure of A.

[0020] In the diagram: 1. Horizontal rotor frame; 2. Hanging basket; 3. Mounting hole; 4. Through hole; 5. Hanging pin; 6. Connecting ear; 7. Centrifuge tube insert plate; 8. Centrifuge tube placement slot; 9. Slot; 10. Miniature electric actuator; 11. Fixing block; 12. Clamping plate; 13. Slide groove; 14. Transition fillet one; 15. Reinforcing rib; 16. Transition fillet two; 17. Gradual slope. Detailed Implementation

[0021] 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.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 An embodiment of this utility model provides: a horizontal rotor for a centrifuge, including a horizontal rotor frame 1, the horizontal rotor frame 1 including a central mounting plate, four sets of rotor frame branches evenly arranged around the central mounting plate, the rotor frame branches are Y-shaped, a transition fillet 14 is provided at the connection between the central mounting plate and the rotor frame branches, a transition fillet 16 is provided at the head of the rotor frame branches, a reinforcing rib 15 is installed at the bottom of the rotor frame branches and the central mounting plate, and a gradual slope 17 is provided between the reinforcing rib 15 and the rotor frame branches and the central mounting plate;

[0024] The center mounting plate has mounting holes 3 inside, which are used to fix the horizontal rotor frame 1 to the centrifuge;

[0025] The central mounting plate and the rotor frame branch are transitioned by a transition fillet 14. The head of the rotor frame branch is set with an arc-shaped transition fillet 16. The use of fillet transition instead of the traditional sharp right angle is because sharp angles can cause stress concentration, while fillets can make stress distribution more uniform. With an appropriate fillet radius, the degree of stress concentration can be effectively reduced. In addition, reinforcing ribs 15 are installed at the bottom of the rotor frame branch and the central mounting plate, which can effectively enhance the overall structural strength of the rotor and reduce the risk of deformation and metal fatigue under high centrifugal force. The reinforcing ribs 15 are transitioned with the rotor frame branch and the central mounting plate by a gradual slope 17 to avoid stress concentration caused by sudden dimensional changes. By gradually increasing the thickness of the structure, the stress can be smoothly transitioned, reducing the situation of excessive local stress. Since the four sets of rotor frame branches are symmetrically distributed, the centrifugal force can be evenly distributed, reducing the additional stress caused by asymmetry. The horizontal rotor frame 1 is installed in the centrifuge by installing fixing bolts in the mounting holes 3.

[0026] A basket 2 is installed between the two sets of rotor frame branches. The basket 2 has two sets of centrifuge tube insert plates 7 inside. The centrifuge tube insert plates 7 have multiple sets of centrifuge tube placement slots 8 inside. The centrifuge tube placement slots 8 are used to place centrifuge tubes.

[0027] The basket 2 is equipped with four sets of fixing components. The fixing components include two sets of fixing blocks 11 installed on the inner wall of the basket 2. The two sets of fixing blocks 11 are located above and below the centrifuge tube insert plate 7, respectively. A miniature electric actuator 10 is installed on the side of the two sets of fixing blocks 11 near the centrifuge tube insert plate 7. A clamp 12 is installed on the output end of the miniature electric actuator 10. The clamp 12 is used to fix the position of the centrifuge tube insert plate 7.

[0028] Centrifuge tube insert plates 7 are placed in the basket 2. Centrifuge tube insert plates 7 are equipped with centrifuge tube placement slots 8 of different sizes to accommodate centrifuge tubes of different diameters. According to the specific diameter of the centrifuge tube, the corresponding centrifuge tube insert plate 7 is inserted into the slide slot 13. Then, the micro electric push rod 10 extends, driving the clamping plate 12 to move closer to the centrifuge tube insert plate 7 until the centrifuge tube insert plate 7 is firmly clamped between the two sets of clamping plates 12. By quickly replacing different centrifuge tube insert plates 7 to adapt to centrifuge tubes of different sizes, the flexibility of the horizontal rotor frame 1 is improved. The inserted centrifuge tube insert plate 7 is reinforced by the micro electric push rod 10 and the clamping plate 12 to improve the stability of the centrifuge tube insert plate 7 and avoid affecting the centrifugation effect.

[0029] The inner wall of the basket 2 is provided with a groove 13, which is used to place the centrifuge tube insert plate 7;

[0030] Both sides of the outer wall of the suspended basket 2 are equipped with connecting ears 6, and the interior of the connecting ears 6 is provided with slots 9;

[0031] The rotor frame branch has a through hole 4 inside, which corresponds to the position of the connecting ear 6. The through hole 4 is connected to the slot 9 by a hanging pin 5.

[0032] When installing the suspended platform 2, align the through hole 4 with the connecting lug 6 on the suspended platform 2, then insert the hanging pin 5 into the through hole 4 and the slot 9, and fix it tightly to complete the connection between the horizontal rotor frame 1 and the suspended platform 2.

[0033] Working principle: Connect the basket 2 to the horizontal rotor frame 1, and then install the horizontal rotor frame 1 in the centrifuge by installing the fixing bolts in the mounting holes 3. According to the specific diameter of the centrifuge tube, insert the corresponding centrifuge tube insert plate 7 into the slide groove 13. Then, the miniature electric push rod 10 extends, driving the clamping plate 12 to move closer to the centrifuge tube insert plate 7 until the centrifuge tube insert plate 7 is firmly clamped between the two sets of clamping plates 12. Different centrifuge tube insert plates 7 can be quickly replaced to adapt to centrifuge tubes of different sizes.

[0034] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0035] 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 horizontal rotor for a centrifuge, characterized in that: The system includes a horizontal rotor frame (1), which includes a central mounting plate. Four sets of rotor frame branches are evenly arranged around the central mounting plate. The rotor frame branches are Y-shaped. A transition fillet 1 (14) is provided at the connection between the central mounting plate and the rotor frame branches. A transition fillet 2 (16) is provided at the head of the rotor frame branches. A reinforcing rib (15) is installed at the bottom of the rotor frame branches and the central mounting plate. A gradual slope (17) is provided between the reinforcing rib (15) and the rotor frame branches and the central mounting plate.

2. A horizontal rotor for a centrifuge according to claim 1, characterized in that: A basket (2) is installed between the two sets of rotor frame branches. The basket (2) has two sets of centrifuge tube insert plates (7) inside. The centrifuge tube insert plates (7) have multiple sets of centrifuge tube placement slots (8) inside. The centrifuge tube placement slots (8) are used to place centrifuge tubes.

3. A horizontal rotor for a centrifuge according to claim 2, characterized in that: The basket (2) is equipped with four sets of fixing components. The fixing components include two sets of fixing blocks (11) installed on the inner wall of the basket (2). The two sets of fixing blocks (11) are located above and below the centrifuge tube insert plate (7), respectively. A miniature electric actuator (10) is installed on the side of the two sets of fixing blocks (11) near the centrifuge tube insert plate (7). A clamp (12) is installed at the output end of the miniature electric actuator (10). The clamp (12) is used to fix the position of the centrifuge tube insert plate (7).

4. A horizontal rotor for a centrifuge according to claim 3, characterized in that: The inner wall of the basket (2) is provided with a groove (13) for placing centrifuge tube inserts (7).

5. A horizontal rotor for a centrifuge according to claim 2, characterized in that: The two outer walls of the suspended basket (2) are equipped with connecting ears (6), and the connecting ears (6) have slots (9) inside.

6. A horizontal rotor for a centrifuge according to claim 5, characterized in that: The rotor frame branch has a through hole (4) inside, and the through hole (4) corresponds to the position of the connecting ear (6). The through hole (4) and the slot (9) are connected by a hanging pin (5).

7. A horizontal rotor for a centrifuge according to claim 1, characterized in that: The central mounting plate has mounting holes (3) inside, which are used to fix the horizontal rotor frame (1) to the centrifuge.

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