CN217115802U - Totally enclosed motor of high life - Google Patents
Totally enclosed motor of high life Download PDFInfo
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- CN217115802U CN217115802U CN202220816537.5U CN202220816537U CN217115802U CN 217115802 U CN217115802 U CN 217115802U CN 202220816537 U CN202220816537 U CN 202220816537U CN 217115802 U CN217115802 U CN 217115802U
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- ring
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- rear shell
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Abstract
A totally enclosed motor with long service life comprises a heat dissipation shell and a rear shell cover of the motor, wherein the rear shell cover is welded and fixed on the heat dissipation shell in a sealing manner; a circular convex ring with a concave inner side of the motor is formed on the rear end surface of the rear shell cover close to the outer ring, a ring groove communicated with the outer side of the motor is formed in the convex ring, a positioning hole communicated with the ring groove is formed in the outer wall of the convex ring, a sleeve pipe opposite to the positioning hole is welded and fixed on the outer wall of the convex ring, and a rubber sealing sleeve is inserted and fixed in the sleeve pipe; an annular inner tube is inserted into the annular groove of the rear shell cover, a valve tube is inserted and fixed on the inner tube, and the valve tube penetrates through a positioning hole on the convex ring and is inserted in the rubber sealing sleeve; the lateral wall of the ring groove opening on the rear shell cover is formed with threads, the opening of the ring groove is connected with a circular end cover in a threaded mode, and a plurality of vent holes are formed in the end cover. A groove is formed in a shell of the motor to arrange a rubber inner tube capable of realizing stable pressure, an end cover is matched to protect the rubber inner tube, and meanwhile, the rubber inner tube is convenient to replace.
Description
The technical field is as follows:
the utility model relates to a technical field of motor, more specifically say and relate to a totally enclosed motor of high life.
Background art:
the existing totally-enclosed motor is a structural form that air around the motor is not communicated with the internal air of the motor and a closed shell is arranged or an inner cavity of a stator of the motor forms a totally-enclosed structure; for the fully-closed motor, heat is prevented from being generated during operation, the generated heat can cause the air in a sealing cavity groove in the fully-closed motor to expand, the pressure in the fully-closed motor is increased, the increased internal pressure can influence the normal operation of the fully-closed motor, and even the motor deforms, the internal sealing cavity groove leaks and the motor is damaged and scrapped; furthermore, rubber air bags are fixed on some totally-enclosed motors, the internal pressure of the totally-enclosed motors is stabilized by the expansion and contraction of the rubber air bags, the rubber air bags on some existing totally-enclosed motors are all arranged and fixed on the outer side of a motor shell and are in an exposed state, damage is easy to occur, and in addition, the rubber aging problem is caused, so that the rubber aging is accelerated by the temperature, and the rubber can break; and the rubber air bag on the totally-enclosed motor shell is troublesome to replace.
The utility model has the following contents:
the utility model aims at providing a totally enclosed motor of high life exactly to prior art not enough, and it sets up the type groove at the shell of motor and settles the rubber inner tube of a tyre that can realize pressure stability, and the cooperation end cover is protected the rubber inner tube of a tyre, also convenient the change to the rubber inner tube of a tyre simultaneously.
A totally enclosed motor with long service life comprises a heat dissipation shell of the motor, wherein a stator is fixedly inserted in the heat dissipation shell, a rotor is inserted in the stator, a rotor shaft is arranged on the rotor, one end of the rotor shaft extends out of the heat dissipation shell, the other end of the rotor shaft is connected in a circular rear shell cover through a bearing, and the rear shell cover is welded and fixed on the heat dissipation shell in a sealing manner; a circular convex ring with a concave inner side of the motor is formed on the rear end surface of the rear shell cover close to the outer ring, a ring groove communicated with the outer side of the motor is formed in the convex ring, a positioning hole communicated with the ring groove is formed in the outer wall of the convex ring, a sleeve pipe opposite to the positioning hole is welded and fixed on the outer wall of the convex ring, and a rubber sealing sleeve is inserted and fixed in the sleeve pipe; an annular inner tube is inserted into the annular groove of the rear shell cover, a valve tube is inserted and fixed on the inner tube, and the valve tube penetrates through a positioning hole in the convex ring and is inserted in the rubber sealing sleeve; the rear shell cover is provided with threads on the side wall of the opening of the annular groove, the opening of the annular groove is in threaded connection with an annular end cover, and a plurality of vent holes are formed in the end cover.
Preferably, the central axis of the heat dissipation shell, the central axis of the rear shell cover, the central axis of the convex ring and the central axis of the rotor shaft coincide with each other, and the outer ring of the bearing is inserted and fixed on the inner wall of the convex ring.
Preferably, a plurality of annular and obliquely-arranged sealing lips are formed on the inner wall of the rubber sealing sleeve, and the sealing lips are pressed against the outer wall of the valve tube.
Preferably, the number of the vent holes is at least three, and the vent holes are uniformly distributed in an annular mode around the central axis of the end cover.
Preferably, an annular reinforcing ring is formed on the outer end face of the end cover, and the vent hole penetrates through the outer end face of the reinforcing ring.
Preferably, the outer end face of the reinforcing ring is positioned in the ring groove of the rear shell cover; the back end face of the back shell cover on one side of the ring groove is formed with an identification groove, and the reinforcing ring is formed with a marking groove aligned with the identification groove.
Preferably, a gap is arranged between the inner tube and the ring groove.
The beneficial effects of the utility model reside in that:
a groove is formed in a shell of the motor to arrange a rubber inner tube capable of realizing stable pressure, an end cover is matched to protect the rubber inner tube, and meanwhile, the rubber inner tube is convenient to replace.
Description of the drawings:
fig. 1 is a schematic three-dimensional structure of the present invention;
FIG. 2 is a schematic side view of the present invention in partial section;
fig. 3 is a partially enlarged view of a portion a in fig. 2.
In the figure: 1. a heat dissipation housing; 2. a rear shell cover; 21. a convex ring; 22. a rear shell cover; 22. positioning holes; 3. a rotor shaft; 4. a bearing; 5. an inner tube; 6. an end cap; 7. a sleeve; 8. a valve tube; 9. a rubber sealing sleeve; 91. and (7) sealing the lip.
The specific implementation mode is as follows:
example (b): as shown in fig. 1 to 3, a totally enclosed motor with a long service life comprises a heat dissipation shell 1 of the motor, wherein a stator is fixedly inserted in the heat dissipation shell 1, a rotor is inserted in the stator, a rotor shaft 3 is arranged on the rotor, one end of the rotor shaft 3 extends out of the heat dissipation shell 1, the other end of the rotor shaft is connected in a circular rear shell cover 2 through a bearing 4, and the rear shell cover 2 is welded and fixed on the heat dissipation shell 1 in a sealing manner; a circular convex ring 21 with a concave inner side of the motor is formed on the rear end surface of the rear shell cover 2 close to the outer ring, a ring groove 22 communicated with the outer side of the motor is formed in the convex ring 21, a positioning hole 23 communicated with the ring groove 22 is formed on the outer wall of the convex ring 21, a sleeve 7 opposite to the positioning hole 23 is fixedly welded on the outer wall of the convex ring 21, and a rubber sealing sleeve 9 is fixedly inserted in the sleeve 7; an annular inner tube 5 is inserted into the annular groove 22 of the rear shell cover 2, a valve tube 8 is inserted and fixed on the inner tube 5, and the valve tube 8 penetrates through a positioning hole 23 on the convex ring 21 and is inserted into the rubber sealing sleeve 9; threads are formed on the side wall of the opening of the annular groove 22 on the rear shell cover 2, the opening of the annular groove 22 is connected with the annular end cover 6 in a threaded mode, and a plurality of vent holes 61 are formed in the end cover 6.
Preferably, the central axis of the heat dissipation housing 1, the central axis of the rear housing cover 2, the central axis of the convex ring 21 and the central axis of the rotor shaft 3 coincide with each other, and the outer ring of the bearing 4 is inserted and fixed on the inner wall of the convex ring 21.
Preferably, the inner wall of the rubber sealing sleeve 9 is formed with a plurality of annular and inclined sealing lips 91, and the sealing lips 91 press against the outer wall of the valve tube 8.
Preferably, the number of the vent holes 61 is at least three, and the vent holes 61 are uniformly distributed around the central axis of the end cover 6 in a ring shape.
Preferably, an annular reinforcing ring 62 is formed on the outer end face of the end cap 6, and the vent holes 61 penetrate through the outer end face of the reinforcing ring 62.
Preferably, the outer end face of the reinforcing ring 62 is located in the ring groove 22 of the rear housing cover 2; the back end surface of the back shell cover 2 at one side of the ring groove 22 is formed with an identification groove, and the reinforcing ring 62 is formed with a marking groove aligned with the identification groove.
Preferably, a gap is formed between the inner tube 5 and the ring groove 22.
The working principle is as follows: the utility model relates to a totally enclosed motor with long service life, which adopts the deformation of the inner tube 5 to realize the problem of internal pressure, and the inner tube 5 is arranged in the annular groove 22 of the back shell cover 2, and the protection of the inner tube 5 is realized through the back shell cover 2 and the end cover 6; meanwhile, the inner tube 5 is communicated with the inside of the motor through a valve tube 8; when the inner tube 5 is replaced, the end cover 6 is unscrewed, the valve tube 8 is pulled out, the inner tube 5 can be taken down, the valve tube 8 on the new inner tube 5 is inserted into the sleeve 7, and the end cover 6 is screwed up to complete replacement of the inner tube 5, so that the replacement is convenient and fast.
The described embodiments are intended to be illustrative, but not limiting, of the invention. The embodiments can be modified by those skilled in the art without departing from the spirit and scope of the present invention, and therefore, the scope of the present invention should be determined by the appended claims.
Claims (7)
1. A totally enclosed motor with long service life comprises a heat dissipation shell (1) of the motor, wherein a stator is fixedly inserted in the heat dissipation shell (1), a rotor is inserted in the stator, a rotor shaft (3) is arranged on the rotor, one end of the rotor shaft (3) extends out of the heat dissipation shell (1), the other end of the rotor shaft is connected in a circular rear shell cover (2) through a bearing (4), and the rear shell cover (2) is welded and fixed on the heat dissipation shell (1) in a sealing mode; the method is characterized in that: a circular convex ring (21) with a motor inner side concave is formed on the rear end face of the rear shell cover (2) close to the outer ring, a ring groove (22) communicated with the outer side of the motor is formed in the convex ring (21), a positioning hole (23) communicated with the ring groove (22) is formed on the outer wall of the convex ring (21), a sleeve (7) opposite to the positioning hole (23) is fixedly welded on the outer wall of the convex ring (21), and a rubber sealing sleeve (9) is fixedly inserted in the sleeve (7); an annular inner tube (5) is inserted into the annular groove (22) of the rear shell cover (2), a valve tube (8) is inserted and fixed on the inner tube (5), and the valve tube (8) penetrates through a positioning hole (23) in the convex ring (21) and is inserted in the rubber sealing sleeve (9); the rear shell cover (2) is provided with threads on the side wall at the opening of the annular groove (22), the opening of the annular groove (22) is connected with a circular end cover (6) in a threaded mode, and the end cover (6) is provided with a plurality of vent holes (61) in a molded mode.
2. A long-life totally enclosed electric machine as claimed in claim 1, characterized in that: the central axis of the heat dissipation shell (1), the central axis of the rear shell cover (2), the central axis of the convex ring (21) and the central axis of the rotor shaft (3) are coincided, and the outer ring of the bearing (4) is inserted and fixed on the inner wall of the convex ring (21).
3. A long-life totally enclosed electric machine as claimed in claim 1, characterized in that: a plurality of annular and obliquely-arranged sealing lips (91) are formed on the inner wall of the rubber sealing sleeve (9), and the sealing lips (91) are pressed against the outer wall of the valve tube (8).
4. A long-life totally enclosed electric machine as claimed in claim 1, characterized in that: the number of the vent holes (61) is at least three, and the vent holes (61) are uniformly distributed in an annular shape around the central axis of the end cover (6).
5. A long-life totally enclosed electric motor as claimed in claim 4, wherein: an annular reinforcing ring (62) is formed on the outer end face of the end cover (6), and the vent holes (61) penetrate through the outer end face of the reinforcing ring (62).
6. A long-life totally enclosed electric machine as claimed in claim 5, wherein: the outer end face of the reinforcing ring (62) is positioned in the annular groove (22) of the rear shell cover (2); the back end face of the back shell cover (2) on one side of the ring groove (22) is formed with a mark groove, and the reinforcing ring (62) is formed with a mark groove aligned with the mark groove.
7. A long-life totally enclosed electric machine as claimed in claim 1, characterized in that: a gap is arranged between the inner tube (5) and the ring groove (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220816537.5U CN217115802U (en) | 2022-04-11 | 2022-04-11 | Totally enclosed motor of high life |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220816537.5U CN217115802U (en) | 2022-04-11 | 2022-04-11 | Totally enclosed motor of high life |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217115802U true CN217115802U (en) | 2022-08-02 |
Family
ID=82580379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220816537.5U Active CN217115802U (en) | 2022-04-11 | 2022-04-11 | Totally enclosed motor of high life |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217115802U (en) |
-
2022
- 2022-04-11 CN CN202220816537.5U patent/CN217115802U/en active Active
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