CN210225118U

CN210225118U - Waterproof motor casing

Info

Publication number: CN210225118U
Application number: CN201921327840.3U
Authority: CN
Inventors: Yunzeng Li; 李云增
Original assignee: Taizhou Jingyi Electromechanical Co Ltd
Current assignee: Taizhou Jingyi Electromechanical Co Ltd
Priority date: 2019-08-15
Filing date: 2019-08-15
Publication date: 2020-03-31
Anticipated expiration: 2029-08-15

Abstract

The utility model provides a waterproof motor casing belongs to motor technical field. It has solved the not good problem of current motor casing water-proof effects. This waterproof motor casing includes motor casing and stretches out the outer motor shaft of motor casing, motor casing tip department is provided with the protection end cover of being connected with motor casing dismantlement, set up the shaft hole that supplies the motor shaft to stretch out on the protection end cover, the interior terminal surface that the protection end cover is located shaft hole department and is provided with bulge loop portion, the inclined hole of outside-in slope is seted up on the outer terminal surface that the protection end cover is located bulge loop portion, the transversal isosceles trapezoid that personally submits of inclined hole, the length A of inclined hole is less than the length B between protection end cover and the bulge loop portion, bulge loop portion has seted up a plurality of annular detention groove on being located the internal perisporium of bulge loop portion right side department, be provided with on the internal perisporium of bulge loop portion with motor shaft normal running fit's ball bearing. The utility model has the advantages of good waterproof effect.

Description

Waterproof motor casing

Technical Field

The utility model belongs to the technical field of the motor, a waterproof motor casing is related to.

Background

The conventional service environment of motor is outdoor, and during the rainy day, inside liquid got into the motor through the tang of connector very easily, made rotary part such as bearing, rotor rust, lead to the motor operation not smooth, block machine even, also lead to motor winding insulation to descend, make motor winding appear alternate short circuit or turn-to-turn short circuit to lead to motor winding local burnout, the unable normal use of motor, need shut down the maintenance, influence pump efficiency, the maintenance rate is high, and cost of maintenance is high.

Disclosure of Invention

The utility model aims at providing a reduce liquid and enter in and prolong motor life to the above-mentioned problem that exists among the prior art.

The purpose of the utility model can be realized by the following technical proposal: a waterproof motor casing comprises a motor casing and a motor shaft extending out of the motor casing, and is characterized in that a protective end cover connected with the motor casing in a detachable manner is arranged at one end of the motor casing, a shaft hole for the motor shaft to extend out is formed in the protective end cover, a convex ring portion which extends axially inwards and is coaxial with the shaft hole is arranged at the position, located at the shaft hole, of the inner end face of the protective end cover, inclined holes inclined from outside to inside are formed in the outer end face of the convex ring portion of the protective end cover, the cross section of each inclined hole is isosceles trapezoid, the length A of each inclined hole is smaller than the length B between the protective end cover and the convex ring portion, a plurality of annular detention grooves which are distributed at intervals along the length direction of the convex ring portion and are used for retention of seepage liquid, and hollow protrusive rings are arranged on the inner end face, located at the right side of the convex ring portion, of the protective end cover, and the inner peripheral wall of the bulge ring is provided with a ball bearing which is rotationally matched with the motor shaft.

In foretell waterproof motor casing, the periphery wall of motor casing one end department on be provided with radial outside protruding and with the extension portion of protecting end cover dismantlement connection, the terminal surface of extension portion and protecting end cover junction on set up the mounting groove that supplies protecting end cover embedding installation, the extension portion is provided with the double-screw bolt that a plurality of edge extension portion circumferencial direction interval distribution just made protecting end cover and extension portion link firmly on the periphery wall of mounting groove department.

In foretell waterproof motor casing, the internal perisporium of inclined hole on be provided with the inclined hole and link firmly and the waterproof cover of keeping away dirt that cavity set up, the waterproof cover of keeping away dirt one end axial outside extend and stretch out the protection end cover outside, and keep away the waterproof cover of dirt and stretch out the outside one end of protection end cover for the rake of from inside to outside slope.

In the waterproof motor casing, the inner peripheral wall of the protection end cover on the left side of the protruding ring is provided with an annular drying agent which is packaged along the circumferential direction of the protection end cover and provided with a breathable packaging bag.

Compared with the prior art, the waterproof motor shell is provided with a protective end cover which is detachably connected with the motor shell at one end part of the motor shell, the protective end cover is provided with a shaft hole for the motor shaft to extend out, the inner end surface of the protective end cover is positioned at the shaft hole and is provided with a convex ring part which axially extends inwards and is coaxially arranged with the shaft hole, the outer end surface of the protective end cover positioned at the convex ring part is provided with an inclined hole which inclines from outside to inside, the inner peripheral wall of the convex ring part positioned at the right side of the inclined hole is provided with a plurality of annular detention grooves which are distributed at intervals along the length direction of the convex ring part and are used for detention of seepage liquid, the inner end surface of the protective end cover positioned at the right side of the convex ring part is provided with a hollow convex ring which radially protrudes inwards, the inner peripheral wall of the convex ring is provided with a ball bearing which is, and meanwhile, the service life of the motor is prolonged.

Drawings

Fig. 1 is a schematic sectional view of a part of a waterproof motor casing.

In the figure, 1, a motor shell; 2. a motor shaft; 3. a protective end cap; 4. a convex ring part; 5. an inclined hole; 6. an annular retention groove; 7. a raised ring; 8. a ball bearing; 9. an extension part; 10. mounting grooves; 11. a stud; 12. a dust-proof and water-proof sleeve; 13. an inclined portion.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in figure 1, the waterproof motor casing comprises a motor casing 1 and a motor shaft 2 extending out of the motor casing after assembly, a protection end cover 3 detachably connected with the motor casing 1 is arranged at one end part of the motor casing 1 located at the motor shaft 2, a shaft hole for the motor shaft 2 to extend out is formed in the end face of the protection end cover 3, a gap is reserved between the inner peripheral wall of the shaft hole and the outer peripheral wall of the motor shaft 2, a protruding ring part 4 axially extending inwards and coaxially arranged with the shaft hole is arranged at the position, located at the position of the shaft hole, of the inner end face of the protection end cover 3, the inner diameter of the protruding ring part 4 is the same as the diameter of the shaft hole, an inclined hole 5 inclined from outside to inside is formed in the outer end face of the protruding ring part 4, the cross section of the inclined hole 5 is isosceles trapezoid, the length A of the inclined hole 5 is smaller than the length B between the outer end face of the protection end cover 3 and the inner end face of the protruding ring Annular detention groove 6 that supplies infiltration liquid to detain, the inner terminal surface that protection end cover 3 is located 4 right sides of bulge loop portion is provided with radial inside arch and cavity setting and supplies motor shaft 2 to pass protruding ring 7, be provided with ball bearing 8 with motor shaft 2 looks rotary fit on the internal perisporium of protruding ring 7, motor casing 1 is provided with radial outside arch and the extension 9 of being connected with protection end cover 3 dismantlement on being located the periphery wall of a tip department of motor shaft 2, set up the mounting groove 10 that supplies protection end cover 3 embedding installation on the terminal surface of extension 9 and protection end cover 3 junction, extension 9 is provided with a plurality of along the 9 circumferencial direction interval distribution of extension and makes protection end cover 3 and extension 9 link firmly mutually stud 11 on being located the periphery wall of mounting groove 10 department, be provided with the sealing washer between the terminal surface of extension 9 and protection end cover 3 junction and the terminal surface of extension 9 junction.

Further saying, for make dustproof and water-proof effects better, be provided with on the internal perisporium that protection end cover 3 is located the inclined hole 5 department and link firmly mutually and cavity setting and supply motor shaft 2 to pass keeps away dirt waterproof jacket 12 with inclined hole 5, keep away dirt waterproof jacket 12 and be located the outside extension of 5 open-ended one end axial of inclined hole and stretch out outside protection end cover 3, keep away dirt waterproof jacket 12 and stretch out the outside one end of protection end cover 3 and be the slope 13 of slope from inside to outside, keep away the transversal isosceles trapezoid that personally submits of the waterproof jacket 12 outside slope 13 of stretching out protection end cover 3, keep away the diameter in the dirt waterproof jacket 12 and be less than the diameter that collar portion 4 is located the right side department of inclined hole 5, the diameter of keeping away dirt waterproof jacket 12 is greater than the external diameter that annular is detained groove 6.

In a further elaboration, in order to reduce the moisture inside the protection end cover 3, an annular desiccant packed in a breathable packing bag is arranged on the inner peripheral wall of the protection end cover 3 on the left side of the raised ring 7 along the circumferential direction of the protection end cover 3, and the annular desiccant is fixedly connected with the inner peripheral wall of the protection end cover 3.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The utility model provides a waterproof motor casing, includes motor casing (1) and stretches out motor shaft (2) outside the motor casing, a serial communication port, motor casing (1) one end department is provided with protection end cover (3) of being connected with motor casing (1) dismantlement, protection end cover (3) on set up the shaft hole that supplies motor shaft (2) to stretch out, the interior terminal surface of protection end cover (3) is located shaft hole department and is provided with protruding ring portion (4) that the axial inwards extends and set up with the shaft hole is coaxial, protection end cover (3) be located the outer terminal surface of protruding ring portion (4) department and set up in outside-in slope's down hole (5), this down hole (5) transversal isosceles trapezoid of personally submitting, and the length A of this down hole (5) is less than the length B between protection end cover (3) and protruding ring portion (4), protruding ring portion (4) are located the internal perisporium of the right side department and have seted up a plurality of edge protruding ring portion (4) length direction interval distribution and supply the interior Annular detention groove (6) that liquid that oozes into is detained, be provided with radial inside arch and the protruding ring (7) of cavity setting on the inner end face that protective end cover (3) are located protruding ring portion (4) right side department, and be provided with on the internal perisporium of protruding ring (7) and motor shaft (2) looks rotary fit's ball bearing (8).

2. The waterproof motor casing according to claim 1, wherein an extension portion (9) which protrudes radially outward and is detachably connected with the protective end cover (3) is arranged on the outer peripheral wall of one end of the motor casing (1), an installation groove (10) for the protective end cover (3) to be embedded and installed is formed in the end face of the joint of the extension portion (9) and the protective end cover (3), and a plurality of studs (11) which are distributed at intervals in the circumferential direction of the extension portion (9) and enable the protective end cover (3) and the extension portion (9) to be fixedly connected are arranged on the outer peripheral wall of the extension portion (9) at the installation groove (10).

3. The waterproof motor casing according to claim 1, wherein the inner peripheral wall of the inclined hole (5) is provided with a hollow dust-proof sleeve (12) fixedly connected with the inclined hole (5), one end of the dust-proof sleeve (12) extends axially outwards and extends out of the protection end cover (3), and the end of the dust-proof sleeve (12) extending out of the protection end cover (3) is an inclined part (13) inclined from inside to outside.

4. A waterproof motor casing according to claim 1, wherein the inner peripheral wall of the protective end cover (3) at the left side of the raised ring (7) is provided with an annular desiccant wrapped in a breathable bag along the circumferential direction of the protective end cover (3).