Airtight high-speed angle rotor of centrifugal machine

Abstract

The utility model discloses an airtight high-speed angle rotor of a centrifugal machine in the technical field of centrifugal machines, which comprises a rotor body, a rotor cover is assembled at the top end of the rotor body, and a central nut is assembled in the center of the interior of the rotor body; a shaft barrel base is assembled in the rotor body and located in the center nut, and a motor shaft is assembled in the shaft barrel base. The end part of the motor shaft penetrates through the shaft barrel seat and then is spirally matched with the central nut; a rotor cover nut is assembled at a center hole in the top end of the rotor cover; the shaft barrel seat comprises a shaft seat a and a shaft seat b which are oppositely arranged, rotating cavities are uniformly formed in the inner walls of the shaft seat a and the shaft seat b along the axes at equal intervals, balls are mounted in the rotating cavities, and the balls are attached to the outer wall of the motor shaft; according to the airtight high-speed angle rotor of the centrifugal machine, the motor shaft penetrates through the shaft barrel seat and then is matched with the rotor nut, so that impurities entering the matching cavity can be prevented from being accumulated to influence matching of the rotor body through matching of the balls in the shaft barrel seat, and the efficiency of the angle rotor is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to centrifuge technical field, concretely is a centrifuge air tightness high -speed angle rotor. BACKGROUND

[0002] Centrifuge is the use centrifugal force, separation liquid and solid particle or liquid and liquid's mixture each component's machinery. Centrifuge is mainly used to separate solid particles with liquid in suspension, or two kinds of liquid with different density, and mutually insoluble liquid are separated (for example, butter is separated from milk in milk), it can also be used for removing liquid in wet solid, for example, the wet clothes are spun in washing machine, and the special high-speed tube type separator can also separate different density gas mixture, the characteristics that different density or granularity solid particles are used in liquid settling speed difference;

[0003] The centrifuge angle rotor in prior art still has some deficiencies, for example, when the motor shaft cooperates with the rotor body, the external impurities are easy to enter the cooperation cavity of the rotor body and the motor shaft, which affects the transmission between the two, therefore, the prior art needs to be improved. UTILITY MODEL CONTENT

[0004] The utility model discloses a centrifuge air tightness high -speed angle rotor, to solve the problem that the motor shaft cooperates with the rotor body in the background art, and external impurities are easy to enter the cooperation cavity of the rotor body and the motor shaft, affect the transmission between the two.

[0005] To realize above -mentioned purpose, the utility model provides the following technical scheme: a centrifuge air tightness high -speed angle rotor, including rotor body, the top of rotor cover is assembled to the rotor body, the inside center of rotor body is assembled with center screw cap;

[0006] The inside of the rotor body is assembled with the shaft cylinder seat in the inside of the center screw cap, and the inside of the shaft cylinder seat is assembled with the motor shaft;

[0007] The end of the motor shaft is screwed with the center screw cap after passing through the shaft cylinder seat;

[0008] The top center hole of the rotor cover is assembled with the rotor cover screw cap;

[0009] The shaft cylinder seat includes the shaft seat a and the shaft seat b that are oppositely arranged, and the inner wall of the shaft seat a and the shaft seat b is uniformly and equidistantly provided with a rotating cavity along the axis thereof, the rotating cavity is internally provided with a ball bearing, and the ball bearing is attached to the outer wall of the motor shaft.

[0010] Screw holes are formed at both ends of the attachment of the rotor cover and the rotor body, and the screw holes are internally screwed with a bolt body.

[0011] As a centrifuge of the utility model for a kind of high-speed angular rotor of airtightness, the both sides wall of shaft seat a and shaft seat b is equipped with connecting plate, the side wall of connecting plate is equipped with fixed hole, fixed bolt is assembled in fixed hole.

[0012] As a centrifuge of the utility model for a kind of high-speed angular rotor of airtightness, the outer wall of shaft seat a and shaft seat b is equipped with oil injection hole, plug is inserted in oil injection hole.

[0013] As a centrifuge of the utility model for a kind of high-speed angular rotor of airtightness, the lower end of bolt main body is equipped with circular groove, bolt rod is fixedly installed in the lower end middle section of circular groove, and bolt rod is screwed in screw hole.

[0014] As a centrifuge of the utility model for a kind of high-speed angular rotor of airtightness, the external upper end of bolt rod is fixedly installed with fixing ring, annular pressing piece, spring and annular rubber sheet are sleeved on the circumferential surface of bolt rod, and extrusion piece is fixedly installed at the lower end edge of annular pressing piece.

[0015] As a centrifuge of the utility model for a kind of high-speed angular rotor of airtightness, annular pressing piece is located on the upper side of fixing ring, spring is located on the upper side of annular pressing piece, and annular rubber sheet is located on the lower side of fixing ring.

[0016] As a centrifuge of the utility model for a kind of high-speed angular rotor of airtightness, the center hole of rotor body is also provided with annular release groove for preventing the taper on motor shaft and the taper of rotor body from being locked.

[0017] Compared with the prior art, the centrifuge of the utility model for a kind of high-speed angular rotor of airtightness has the advantages that the structure is reasonably designed;

[0018] By arranging shaft cylinder seat at rotor nut inside rotor body and cooperating motor shaft with rotor nut after passing through shaft cylinder seat, impurities entering into the matching cavity can be avoided to accumulate and affect the matching of rotor body, thereby improving the efficiency of angular rotor. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the structure schematic view of the utility model;

[0020] Figure 2 It is the shaft cylinder seat schematic view of the utility model;

[0021] Figure 3 It is the structure schematic view of the utility model A part;

[0022] Figure 4 It is the bolt main body schematic view of the utility model.

[0023] In the figure: 1, rotor body; 2, motor shaft; 3, rotor cover; 4, bolt body; 41, bolt rod; 42, annular rubber sheet; 43, circular groove; 44, annular pressing sheet; 45, extruded sheet; 46, fixing ring; 47, spring; 5, center nut; 6, rotor cover nut; 7, shaft cylinder seat; 71, shaft seat a; 72, shaft seat b; 8, oil injection hole; 9, fixing hole; 10, connecting plate; 11, fixing bolt. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0025] Please refer to Figures 1-4 The utility model provides a technical scheme:

[0026] In the technical scheme, a centrifuge airtight high-speed angular rotor comprises a rotor body 1, the top end of the rotor body 1 is equipped with a rotor cover 3, the inside center of the rotor body 1 is equipped with a center nut 5, the inside of the center nut 5 in the rotor body 1 is equipped with a shaft cylinder seat 7, the inside of the shaft cylinder seat 7 is equipped with a motor shaft 2, the end of the motor shaft 2 is screw fitted with the center nut 5 after passing through the shaft cylinder seat 7, the top end center hole of the rotor cover 3 is equipped with a rotor cover nut 6, the shaft cylinder seat 7 comprises oppositely arranged shaft seat a 71 and shaft seat b 72, the inner wall of the shaft seat a 71 and the shaft seat b 72 is uniformly and equidistantly provided with a rotating cavity 13 along the axis, the rotating cavity 13 is internally provided with a ball 14, and the ball 14 is attached to the outer wall of the motor shaft 2, and the attachment place of the rotor cover 3 and the rotor body 1 is provided with a threaded hole at both ends, and the threaded hole is screw connected with a bolt body 4.

[0027] In the technical scheme, the rotor body 1 is aligned with the motor shaft 2, the center nut 5 is screw fitted with the motor shaft 8, the motor shaft 2 is screw fitted with the center nut 5 after passing through the shaft cylinder seat 7 when being installed into the rotor body 1, the shaft cylinder seat 7 is combined by two oppositely arranged shaft seat a 71 and shaft seat b 72, the ball 14 can roll in the rotating cavity 13, so that the motor shaft 2 is sequentially rotated when being fitted, the accumulation of impurities entering is avoided to affect the rotating efficiency, and the rotor cover 3 and the rotor body 1 are connected and fixed by the threaded connection mode.

[0028] In some technical schemes, the two side walls of the shaft seat a 71 and the shaft seat b 72 are provided with a connecting plate 10, the side wall of the connecting plate 10 is provided with a fixing hole 9, and the fixing hole 9 is provided with a fixing bolt 11.

[0029] In the technical scheme, the shaft seat a71 and the shaft seat b72 are fixed, and the left and right connecting plates 10 are adhered and fixed through the fixing bolts 11.

[0030] In some technical schemes, the outer walls of the shaft seat a71 and the shaft seat b72 are provided with oil injection holes 8, and the oil injection holes 8 are inserted with hole plugs.

[0031] In the technical scheme, the oil injection hole 8 is communicated with the rotating cavity 13, and lubricating oil can be added into the rotating cavity 13.

[0032] In some technical schemes, the lower end of the bolt body 4 is provided with a circular groove 43, the lower end middle section of the circular groove 43 is fixedly installed with a bolt rod 41 which is screwed in the screw hole; the outer upper end of the bolt rod 41 is fixedly installed with a fixing ring 46, the circumferential surface of the bolt rod 41 is sleeved with an annular pressing piece 44, a spring 47 and an annular rubber piece 42, and the lower end edge of the annular pressing piece 44 is fixedly installed with an extrusion piece 45; the annular pressing piece 44 is located on the upper side of the fixing ring 46, the spring 47 is located on the upper side of the annular pressing piece 44, and the annular rubber piece 42 is located on the lower side of the fixing ring 46.

[0033] In the technical scheme, in the process of fastening, the annular rubber piece 42 slides upward due to the action of the threaded hole 9, and with further screwing, the annular rubber piece 42 contacts the fixing ring 46, the annular rubber piece 42 is deformed due to the action of the fixing ring 46, the threaded hole 9 is sealed, the spring 47 is located on the upper side of the annular pressing piece 44, the annular pressing piece 44 is extruded downward due to the action of the spring 47, the extrusion block is extruded downward due to the action of the annular pressing piece 44, the edge of the annular rubber piece 42 is further extruded by the extrusion block, and thus the sealing effect is improved.

[0034] In some technical schemes, the central hole of the rotor body 1 is further provided with an annular release groove for preventing the taper surface on the motor shaft 2 and the taper surface of the rotor body from being locked.

[0035] It should be noted that, in the present document, the terms such as first and second, and the like, are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between such entities or operations. Also, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0036] Although the utility model has been described above with reference to the embodiments, various modifications can be made to it and equivalent components can be substituted for the components thereof without departing from the scope of the utility model. In particular, the features of the embodiments disclosed by the utility model can be combined with each other in any manner as long as there is no structural conflict, and the combinations of the features are not exhaustively described in the specification only for the purpose of omitting the length and saving the resources. Therefore, the utility model is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A hermetic high speed angle rotor for a centrifuge, comprising a rotor body (1), characterized in that: The top end of the rotor body (1) is equipped with a rotor cover (3), and the inside center of the rotor body (1) is equipped with a center nut (5); The inside of the center nut (5) in the rotor body (1) is equipped with a shaft cylinder seat (7), and the inside of the shaft cylinder seat (7) is equipped with a motor shaft (2); The end of the motor shaft (2) is screw-connected with the center nut (5) after penetrating through the shaft cylinder seat (7); The top center hole of the rotor cover (3) is equipped with a rotor cover nut (6); The shaft cylinder seat (7) comprises oppositely arranged shaft seat a (71) and shaft seat b (72), the inner walls of the shaft seat a (71) and the shaft seat b (72) are uniformly and equidistantly provided with rotating cavities (13) along the shaft center, the rotating cavities (13) are internally provided with balls (14), and the balls (14) are arranged in close contact with the outer wall of the motor shaft (2); Both ends of the close contact part of the rotor cover (3) and the rotor body (1) are provided with screw holes, and the screw holes are screw-connected with bolt bodies (4).

2. A hermetic high speed angular rotor for a centrifuge according to claim 1, characterized in that, Both side walls of the shaft seat a (71) and the shaft seat b (72) are provided with connecting plates (10), the side wall of the connecting plate (10) is provided with a fixing hole (9), and the fixing hole (9) is provided with a fixing bolt (11).

3. A hermetic high speed angular rotor for a centrifuge according to claim 2, characterized in that, The outer wall of the shaft seat a (71) and the shaft seat b (72) is provided with an oil injection hole (8), and the oil injection hole (8) is inserted with a hole plug.

4. A hermetic high speed angular rotor for a centrifuge according to claim 1, characterized in that, The lower end of the bolt body (4) is provided with a circular groove (43), the lower end of the circular groove (43) is fixedly provided with a bolt rod (41), and the bolt rod (41) is screw-connected in the screw hole.

5. A hermetic high speed angular rotor for a centrifuge according to claim 4, characterized in that, The outer upper end of the bolt rod (41) is fixedly provided with a fixing ring (46), the circumferential surface of the bolt rod (41) is sleeved with an annular pressing piece (44), a spring (47) and an annular rubber sheet (42), and the lower end edge of the annular pressing piece (44) is fixedly provided with an extrusion sheet (45).

6. A hermetic high speed angular rotor for a centrifuge according to claim 5, characterized in that, The annular pressing piece (44) is located on the upper side of the fixing ring (46), the spring (47) is located on the upper side of the annular pressing piece (44), and the annular rubber sheet (42) is located on the lower side of the fixing ring (46).

7. A hermetic high speed angular rotor for a centrifuge according to claim 1, characterized in that, The center hole of the rotor body (1) is further provided with an annular release groove for preventing the taper surface on the motor shaft (2) and the taper surface of the rotor body from being locked.

Images