Centrifugal machine angle rotor cover mounting structure

Abstract

The utility model belongs to the technical field of centrifugal machines, and particularly discloses a centrifugal machine angle rotor cover installation structure which comprises a nut fixing sleeve located on the lower side of an upper rotor cover body and a center threaded seat located in a lower angle rotor body, the nut fixing sleeve is cylindrical, and screw holes are formed in the upper portion and the lower portion of the nut fixing sleeve. The upper side of the outer wall of the center threaded seat is provided with first external threads matched with a screw hole in the lower portion of the nut fixing sleeve. A placement hole is formed in the center of the upper rotor cover body, a stud is movably inserted into the placement hole, second external threads matched with the upper screw holes of the nut fixing sleeves are formed in the bottom end of the outer wall of the stud, and the lower end of the stud penetrates through the placement hole and is connected with the upper end of the nut fixing sleeve on the lower side. For some large-capacity lower angle rotor bodies, the upper rotor cover body is firstly placed, and then the studs are tightened, so that the working intensity of operators is reduced.

Description

Technical Field

[0001] This utility model relates to the field of centrifuge technology, specifically to a centrifuge angle rotor cover mounting structure. Background Technology

[0002] Most angle rotors on the market are composed of an angle rotor body, a rotor cover, a sealing ring, a central threaded seat, a nut, and a shaft retaining ring. The rotor cover, nut, and shaft retaining ring are assembled into an assembly of the angle rotor cover, which can be regarded as a module. The straight shaft part of the nut has a groove for the shaft retaining ring. After the nut is inserted into the central hole of the rotor cover, the shaft retaining ring is installed in the groove of the nut, so that the rotor cover is restricted to the movement of the gap between the shaft retaining ring and the nut.

[0003] Currently, the angle rotor and rotor cover are usually fixed by multiple bolts or by a combination of clips, which results in low connection efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a centrifuge rotor cover mounting structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a centrifuge rotor cover mounting structure, comprising:

[0006] The nut fixing sleeve is located on the lower side of the upper rotor cover and the central threaded seat is located inside the lower corner rotor body;

[0007] The nut fixing sleeve is cylindrical, and threaded holes are provided at both the upper and lower parts of the nut fixing sleeve. The outer wall of the central threaded seat is provided with an external thread that matches the threaded hole at the lower part of the nut fixing sleeve.

[0008] A placement hole is provided at the center of the upper rotor cover. A stud is movably inserted into the placement hole. The bottom of the outer wall of the stud is provided with an external thread that matches the upper threaded hole of the nut fixing sleeve. The lower end of the stud passes through the placement hole and is connected to the upper end of the lower nut fixing sleeve.

[0009] Preferably, a sealing ring is embedded in the upper inner side of the lower corner rotor body, and the sealing ring corresponds to the position of the lower surface edge of the upper rotor cover.

[0010] Preferably, a handle ring is provided on the upper side of the outer wall of the stud, and the diameter of the handle ring is larger than the diameter of the stud.

[0011] Preferably, the stud and the hand ring are hollow. A screw is provided on the lower inner side of the stud. The screw passes through the stud and is screwed to the nut fixing sleeve. A spring washer and a flat washer are clamped between the top of the screw and the lower inner side of the stud.

[0012] Preferably, the outer wall of the central threaded seat extends outward to form a side extension plate, and a countersunk hole is provided on the side extension plate. A second screw is provided in the countersunk hole, the second screw passes through the countersunk hole and is screwed to the lower corner rotor body, and a second spring washer and a second flat washer are provided between the top of the second screw and the lower corner rotor body.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] For some large-capacity lower-angle rotor bodies, the upper rotor cover is placed first, and then the studs are tightened, which reduces the workload of the operators. Attached Figure Description

[0015] Figure 1 This is a cross-sectional view of the upper rotor cover of this utility model;

[0016] Figure 2 This is a cross-sectional view of the rotor body at the lower corner of the present invention.

[0017] Figure 3 This is a schematic diagram of the structure of the present invention when the rotor cover is closed;

[0018] Figure 4 This utility model Figure 3 A schematic diagram of the structure after tightening the studs.

[0019] In the diagram: 1-Upper rotor cover; 2-Nut fixing sleeve; 3-Stud; 4-Screw 1; 5-Spring washer 1; 6-Flat washer 1; 7-Lower corner rotor body; 8-Sealing ring; 9-Center threaded seat; 10-Screw 2; 11-Spring washer 2; 12-Flat washer 2. Detailed Implementation

[0020] 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.

[0021] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] Example 1:

[0023] Please see Figure 1-4 This utility model provides a technical solution: a centrifuge corner rotor cover mounting structure, including: a nut fixing sleeve 2 located on the lower side of the upper rotor cover 1 and a central threaded seat 9 located inside the lower corner rotor body 7;

[0024] The nut fixing sleeve 2 is cylindrical, and threaded holes are provided at both the upper and lower parts of the nut fixing sleeve 2. The outer wall of the central threaded seat 9 is provided with an external thread that matches the threaded hole at the lower part of the nut fixing sleeve 2. A placement hole is provided at the center of the upper rotor cover 1. A stud 3 is movably inserted into the placement hole. The bottom of the outer wall of the stud 3 is provided with an external thread that matches the threaded hole at the upper part of the nut fixing sleeve 2. The lower end of the stud 3 passes through the placement hole and is connected to the upper end of the nut fixing sleeve 2 on the lower side.

[0025] Analysis of the above content: When in use, the nut fixing sleeve 2 and the stud 3 are pre-connected. The stud 3 can slide up and down in the placement hole, while driving the nut fixing sleeve 2 to move. The stud 3 cannot detach downward from the upper rotor cover 1.

[0026] During connection, such as Figure 3 , 4 As shown, first place the upper rotor cover 1 over the upper opening of the lower corner rotor body 7, then press down the stud 3 along with the nut fixing sleeve 2 until the nut fixing sleeve 2 contacts the center threaded seat 9. Then rotate the stud 3 and the nut fixing sleeve 2 so that the nut fixing sleeve 2 and the center threaded seat 9 are connected and fastened together. To disassemble, simply twist the nut fixing sleeve 2 and the stud 3 in the opposite direction.

[0027] Example 2:

[0028] Please see Figure 1-4 Based on Embodiment 1, this utility model provides a technical solution: a sealing ring 8 is embedded in the upper side of the lower corner rotor body 7, and the sealing ring 8 corresponds to the position of the lower surface edge of the upper rotor cover 1.

[0029] Analysis of the above content: When the upper rotor cover 1 and the lower rotor body 7 are closed, the edge of the upper rotor cover 1 presses against the sealing ring 8, which plays a sealing role.

[0030] Example 3:

[0031] Please see Figure 1-4This utility model provides a technical solution based on Embodiment 1: A handle ring is provided on the upper side of the outer wall of the stud 3, and the diameter of the handle ring is larger than the diameter of the stud 3. Both the stud 3 and the handle ring are hollow. A screw 4 is provided on the lower side of the interior of the stud 3. The screw 4 penetrates the stud 3 and is screwed to the nut fixing sleeve 2. A spring washer 5 and a flat washer 6 are sandwiched between the top of the screw 4 and the lower inner side of the stud 3. The outer wall of the central thread seat 9 extends outward to form a side extension plate. A countersunk hole is provided on the side extension plate. A screw 10 is provided in the countersunk hole. The screw 10 penetrates the countersunk hole and is screwed to the lower corner rotor body 7. A spring washer 11 and a flat washer 12 are provided between the top of the screw 10 and the lower corner rotor body 7.

[0032] Analysis of the above content: The fixing between the nut fixing sleeve 2 and the stud 3, and the fixing between the center threaded seat 9 and the lower corner rotor body 7, are all fixed with similar screws.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It is obvious to those skilled in the art that this utility model 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 basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model, and no reference numerals in the claims should be considered as limiting the scope of the claims.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A centrifuge angular rotor cover mounting structure characterized by, Include: The screw cap fixed sleeve (2) is located on the lower side of the upper rotor cover (1), and the center threaded seat (9) is located in the inside of the lower corner rotor body (7); Wherein, the screw cap fixed sleeve (2) is cylindrical, and the upper and lower parts of the screw cap fixed sleeve (2) are provided with screw holes, and the outer wall of the center threaded seat (9) is provided with an outer thread I matched with the lower screw hole of the screw cap fixed sleeve (2); The center of the upper rotor cover (1) is provided with a placing hole, the screw column (3) is movably inserted into the placing hole, the outer wall bottom end of the screw column (3) is provided with an outer thread II matched with the upper screw hole of the screw cap fixed sleeve (2), and the lower end of the screw column (3) penetrates the placing hole and is connected with the upper end of the screw cap fixed sleeve (2) on the lower side.

2. A centrifuge angular rotor cover mounting structure according to claim 1, characterized in that: The inside of the lower corner rotor body (7) is embedded with a sealing ring (8), and the sealing ring (8) corresponds to the position of the lower surface edge of the upper rotor cover (1).

3. A centrifuge angular rotor cover mounting structure according to claim 1, characterized in that: The outer wall upper side of the screw column (3) is provided with a hand holding ring, and the diameter of the hand holding ring is greater than the diameter of the screw column (3).

4. A centrifuge angular rotor cover mounting structure according to claim 3, characterized in that: The screw column (3) and the hand holding ring are hollow, the inside lower side of the screw column (3) is provided with a screw I (4), the screw I (4) penetrates the screw column (3) and is screwed with the screw cap fixed sleeve (2), and the top end of the screw I (4) and the inner lower side of the screw column (3) are clamped with a spring washer I (5) and a flat washer I (6).

5. The centrifuge angular rotor cover mounting structure of claim 1, wherein: The outer wall of the center threaded seat (9) extends outward to form a side extension plate, a countersunk hole is formed in the side extension plate, a screw II (10) is arranged in the countersunk hole, the screw II (10) penetrates the countersunk hole and is screwed with the lower corner rotor body (7), and the top end of the screw II (10) and the lower corner rotor body (7) are provided with a spring washer II (11) and a flat washer II (12).

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