CN218449679U

CN218449679U - Single-bearing vacuum pump motor adopting externally-embedded lining structure

Info

Publication number: CN218449679U
Application number: CN202122785839.9U
Authority: CN
Inventors: 王志斌; 杨彦
Original assignee: De Neng Electric Drive Technology Suzhou Co ltd
Current assignee: De Neng Electric Drive Technology Suzhou Co ltd
Priority date: 2021-11-15
Filing date: 2021-11-15
Publication date: 2023-02-03
Anticipated expiration: 2031-11-15

Abstract

The utility model provides an adopt and inlay inside lining structure's single bearing vacuum pump motor outward, includes casing, end cover, pivot, stator module, rotor subassembly, flange, oil blanket and oil blanket bush, end cover and flange set up the both ends at casing axis direction respectively, the pivot sets up in casing, end cover and flange enclosed cavity to the both ends of pivot set up respectively on end cover and flange, stator module and rotor subassembly all set up in the casing to rotor subassembly and pivot are connected, the oil blanket bush is impressed the pivot and is set up on the outer wall of flange tip, the oil blanket sets up on the flange to the outside at the oil blanket bush is established to the oil blanket cover, oil blanket bush and oil blanket form the structure of inlaying the inside lining outward. The utility model discloses an adopt and inlay inner lining structure's single bearing vacuum pump motor outward adopts the seal structure of oil blanket bush and oil blanket, has improved the leakproofness of motor shaft end greatly, has reduced the emergence that dust impurity got into the inside condition of motor, has guaranteed the life of motor.

Description

Single-bearing vacuum pump motor adopting externally-embedded lining structure

Technical Field

The utility model belongs to the technical field of drive control is equipped to intelligence, specifically, relate to an adopt single bearing vacuum pump motor of inlaying inside lining structure outward.

Background

The motor is an electromagnetic device for realizing electric energy conversion or transmission according to the electromagnetic induction law, and the motor mainly has the function of generating driving torque and is used as a power source of electric appliances or various machines.

The service life of the motor is influenced by the temperature, the internal cleanliness and the like during operation, if the motor has poor sealing performance, under the condition that external dust easily enters the motor, the motor is easily damaged, and therefore the motor needs to be sealed by a sealing piece during assembly, wherein the sealing piece comprises a sealing cover.

The vacuum pump motor is mainly applied to a vacuum pump, and has a structure that a motor rotor is directly connected to a pump spindle as a motor used by the vacuum pump. In the case of the motor having such a structure, the rotor of the motor is exposed to corrosive gas used in a semiconductor manufacturing process. On the other hand, in order to maintain a vacuum (decompressed) state, a housing is assembled between the motor stator and the motor rotor, and a sealing structure needs to be implemented.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: the utility model aims at providing an adopt and inlay inside lining structure's single bearing vacuum pump motor outward has solved when special vacuum pump trade uses the motor, carries out that the motor is well sealed, simplifies the structural design of motor simultaneously, reduces motor cost of maintenance's problem.

The technical scheme is as follows: the utility model provides an adopt single bearing vacuum pump motor of inlaying inside lining structure outward, including casing, end cover, pivot, stator module, rotor subassembly, flange, oil blanket and oil blanket bush, end cover and flange set up the both ends at casing axis direction respectively, the pivot sets up in casing, end cover and flange enclose the cavity to the both ends of pivot set up respectively on end cover and flange, stator module and rotor subassembly all set up in the casing to rotor subassembly and pivot are connected, the oil blanket bush is impressed the pivot and is set up on the outer wall of flange tip, the oil blanket sets up on the flange to the oil blanket cover is established in the outside of oil blanket bush, oil blanket bush and oil blanket form the structure of inlaying the inside lining outward. The utility model discloses an adopt and inlay inside lining structure's single bearing vacuum pump motor outward adopts the seal structure of oil blanket bush and oil blanket, has improved the leakproofness of motor shaft end greatly, has reduced the emergence that dust impurity got into the inside condition of motor, has guaranteed the life of motor.

Furthermore, in the single-bearing vacuum pump motor adopting the structure of externally embedded lining, a bearing is arranged between the end cover and the end part of the rotating shaft. Different sealing and supporting structures are respectively adopted at two ends of the rotating shaft, so that the motor can be ensured to have good sealing performance, and meanwhile, the structural design of the motor is optimized, and the motor is convenient to maintain.

Furthermore, foretell adoption inlays the single bearing vacuum pump motor of inside lining structure outward, the tip that the end cover stretches into the casing is equipped with the oil groove to be equipped with the oilhole on the end cover, oil groove and oilhole intercommunication, be connected with the copper oil mirror on the oilhole.

Furthermore, the above single-bearing vacuum pump motor adopting the structure that the lining is embedded outside is provided with a first sealing ring between the copper oil mirror and the oil hole.

Furthermore, the above-mentioned single-bearing vacuum pump motor adopting the external lining structure, the inside of the rotating shaft is provided with a connecting bolt, one end of the rotating shaft close to the flange is provided with a connecting hole, and the stud part of the connecting bolt extends into the connecting hole. When the connecting bolt is connected with external equipment, the connecting end extends into the connecting hole to be limited in the radial direction through the key, and the external equipment is locked through the connecting bolt to be limited in the axial direction, so that stable connection relation is provided in the radial direction and the axial direction.

Furthermore, the single-bearing vacuum pump motor adopting the structure that the lining is embedded outside is characterized in that the casing is made of aluminum alloy.

Furthermore, in the single-bearing vacuum pump motor adopting the externally-embedded lining structure, the stator assembly is pressed into the casing, and the stator assembly and the casing are encapsulated by epoxy.

Further, foretell adoption inlays single bearing vacuum pump motor of inside lining structure outward, the end cover adopts the step type setting, be equipped with sealing washer two between the inner wall of end cover and casing to be equipped with sealing washer three between the terminal surface of end cover and casing, be equipped with sealing washer four between the inner wall of flange and casing, and be equipped with sealing washer five between the terminal surface of flange and casing. The sealing rings are arranged on the end face and the inner wall, so that the sealing performance between the machine shell and the flange and between the machine shell and the end cover is improved.

Furthermore, the single-bearing vacuum pump motor adopting the externally-embedded lining structure is connected with a wiring socket on the end cover.

Furthermore, the above single-bearing vacuum pump motor adopting the externally-embedded lining structure is characterized in that the casing, the end cover, the rotating shaft, the stator assembly, the rotor assembly and the flange are coaxially arranged.

Above-mentioned technical scheme can find out, the utility model discloses following beneficial effect has: adopt and inlay inner lining structure's single bearing vacuum pump motor outward, have following advantage:

1. the motor structure mainly aims at the vacuum pump industry, adopts a single bearing structure of a front oil seal and a rear bearing, simplifies the structure and has good sealing effect;

2. the casing is made of aluminum alloy, and a water circulation cooling structure is arranged in the casing, so that the weight of the whole machine can be reduced, and the temperature of the motor can be well controlled;

3. the oil seal adopts a structure that the lining is embedded outside, and the lining is used as a wearing part, so that the maintenance cost of the motor is greatly reduced, and the service life of the motor is prolonged.

Drawings

Fig. 1 is a cross-sectional view of a single-bearing vacuum pump motor adopting an externally-embedded lining structure according to the present invention;

FIG. 2 is a schematic structural view of a single-bearing vacuum pump motor adopting an externally-embedded lining structure according to the present invention;

fig. 3 is a left side view of the single-bearing vacuum pump motor adopting an externally-embedded lining structure.

In the figure: the motor comprises a machine shell 1, an end cover 2, an oil groove 21, an oil hole 22, a copper oil mirror 23, a first sealing ring 24, a second sealing ring 25, a third sealing ring 26, a wiring socket 27, a rotating shaft 3, a connecting bolt 31, a connecting hole 32, a stator assembly 4, a rotor assembly 5, a flange 6, a fourth sealing ring 61, a fifth sealing ring 62, an oil seal 7, an oil seal bush 8 and a bearing 9.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary intended for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation of the first and second features not being in direct contact, but being in contact with another feature between them. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Example one

The single-bearing vacuum pump motor adopting the externally-embedded lining structure comprises a casing 1, an end cover 2, a rotating shaft 3, a stator assembly 4, a rotor assembly 5, a flange 6, an oil seal 7 and an oil seal lining 8, wherein the end cover 2 and the flange 6 are respectively arranged at two ends of the axis direction of the casing 1, the rotating shaft 3 is arranged in a cavity surrounded by the casing 1, the end cover 2 and the flange 6, two ends of the rotating shaft 3 are respectively arranged on the end cover 2 and the flange 6, the stator assembly 4 and the rotor assembly 5 are both arranged in the casing 1, the rotor assembly 5 is connected with the rotating shaft 3, the oil seal lining 8 is pressed into the rotating shaft 3 and is arranged on the outer wall of the end part of the flange 6, the oil seal 7 is arranged on the flange 6, the oil seal 7 is sleeved outside the oil seal lining 8, and the oil seal lining 8 and the oil seal 7 form the externally-embedded lining structure. The machine shell 1, the end cover 2, the rotating shaft 3, the stator assembly 4, the rotor assembly 5 and the flange 6 are coaxially arranged.

Wherein, the end that end cover 2 stretches into casing 1 is equipped with oil groove 21 to be equipped with the oilhole 22 on the end cover 2, oil groove 21 and oilhole 22 intercommunication, be connected with copper oil mirror 23 on the oilhole 22. And a first sealing ring 24 is arranged between the copper oil mirror 23 and the oil hole 22. The end cap 2 is connected with a connection socket 27.

In addition, the rotating shaft 3 is provided with a connecting bolt 31 inside, one end of the rotating shaft 3 close to the flange 6 is provided with a connecting hole 32, and the stud part of the connecting bolt 31 extends into the connecting hole 32.

And thirdly, the machine shell 1 is made of aluminum alloy. The stator assembly 4 is pressed into the casing 1, and epoxy potting is adopted between the stator assembly 4 and the casing 1.

In addition, the end cover 2 is arranged in a stepped mode, a second sealing ring 25 is arranged between the end cover 2 and the inner wall of the machine shell 1, a third sealing ring 26 is arranged between the end cover 2 and the end face of the machine shell 1, a fourth sealing ring 61 is arranged between the flange 6 and the inner wall of the machine shell 1, and a fifth sealing ring 62 is arranged between the flange 6 and the end face of the machine shell 1.

Example two

Based on the structure of the embodiment, a bearing 9 is arranged between the end cover 2 and the end part of the rotating shaft 3.

The utility model discloses an inlay inside lining structure's single bearing vacuum pump motor's installation method outward:

1. pressing the stator assembly 4 into the water-cooled casing 1, and pouring epoxy glue;

2. pressing a bearing 9 into the rear end of the rotating shaft close to the end cover 2, then installing the bearing into a bearing chamber of the end cover 2, installing an O-shaped ring at the sealing position of the end cover 2, fixing the end cover 2 on the shell 1, and pressing an oil seal bush 8 into the other end of the rotating shaft 3;

3. and (3) installing an oil seal 7 into the opening part of the front flange 6, installing an O-shaped ring into the sealing groove of the flange 6, and fixing the flange 6 and the machine shell 1 by using bolts.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications can be made without departing from the principles of the present invention, and these modifications should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides an adopt and inlay single bearing vacuum pump motor of inside lining structure outward which characterized in that: including casing (1), end cover (2), pivot (3), stator module (4), rotor subassembly (5), flange (6), oil blanket (7) and oil blanket bush (8), end cover (2) and flange (6) set up respectively at the both ends of casing (1) axis direction, pivot (3) set up in casing (1), end cover (2) and flange (6) enclose the cavity to the both ends of pivot (3) set up respectively on end cover (2) and flange (6), stator module (4) and rotor subassembly (5) all set up in casing (1) to rotor subassembly (5) and pivot (3) are connected, oil blanket bush (8) are impressed pivot (3) and are set up on the outer wall of flange (6) tip, oil blanket (7) set up on flange (6) to oil blanket (7) cover is established in the outside of oil blanket bush (8), bush (8) and oil blanket (7) form the structure of inlaying the oil blanket inside lining outward.

2. The single-bearing vacuum pump motor adopting an externally-embedded lining structure as claimed in claim 1, wherein: and a bearing (9) is arranged between the end cover (2) and the end part of the rotating shaft (3).

3. The single-bearing vacuum pump motor adopting an externally embedded lining structure as claimed in claim 1 or 2, wherein: the end part of the end cover (2) extending into the shell (1) is provided with an oil groove (21), the end cover (2) is provided with an oil hole (22), the oil groove (21) is communicated with the oil hole (22), and the oil hole (22) is connected with a copper oil mirror (23).

4. The single-bearing vacuum pump motor adopting an externally-embedded lining structure as claimed in claim 3, wherein: and a first sealing ring (24) is arranged between the copper oil mirror (23) and the oil hole (22).

5. The single-bearing vacuum pump motor adopting an externally embedded lining structure as claimed in claim 1, wherein: the inside of pivot (3) is equipped with connecting bolt (31), the one end that pivot (3) are close to flange (6) is equipped with connecting hole (32), the double-screw bolt part of connecting bolt (31) extends to in connecting hole (32).

6. The single-bearing vacuum pump motor adopting an externally-embedded lining structure as claimed in claim 1, wherein: the casing (1) is made of aluminum alloy.

7. The single-bearing vacuum pump motor adopting an externally embedded lining structure as claimed in claim 1, wherein: the stator assembly (4) is pressed into the machine shell (1), and epoxy potting is adopted between the stator assembly (4) and the machine shell (1).

8. The single-bearing vacuum pump motor adopting an externally-embedded lining structure as claimed in claim 1, wherein: the end cover (2) is arranged in a stepped mode, a second sealing ring (25) is arranged between the inner walls of the end cover (2) and the casing (1), a third sealing ring (26) is arranged between the end faces of the end cover (2) and the casing (1), a fourth sealing ring (61) is arranged between the inner walls of the flange (6) and the casing (1), and a fifth sealing ring (62) is arranged between the end faces of the flange (6) and the casing (1).

9. The single-bearing vacuum pump motor adopting an externally-embedded lining structure as claimed in claim 3, wherein: and the end cover (2) is connected with a wiring socket (27).

10. The single-bearing vacuum pump motor adopting an externally embedded lining structure as claimed in claim 1, wherein: the motor shell (1), the end cover (2), the rotating shaft (3), the stator assembly (4), the rotor assembly (5) and the flange (6) are coaxially arranged.