CN217642989U - Motor casing - Google Patents

Abstract

The utility model provides a motor shell. The motor shell comprises a base, wherein the base is of a hollow structure, a front end cover and a rear end cover are fixedly mounted at two ends of the base respectively, a bearing inner cover is arranged in the rear end cover, the motor shell further comprises a plurality of limiting blocks, the limiting blocks are fixedly mounted on outer edges of one sides, close to the base, of the front end cover and the rear end cover respectively, a plurality of limiting grooves are formed in inner walls of two ends of the base, and the limiting grooves are matched with the limiting blocks; the stopper is the wedge, the stopper reduces along the direction width that is close to the frame gradually, the both sides inner wall slope of spacing groove sets up, and the spacing groove reduces along the direction width that is close to frame middle part position gradually. The utility model provides a motor housing has and can lead when end cover and frame are connected and spacing, prevents the connecting hole dislocation and can't realize the advantage of equipment.

Description

Motor casing

Technical Field

The utility model relates to the technical field of electric machines, especially, relate to a motor casing.

Background

As is well known, an electric machine refers to an electromagnetic device that converts or transmits electric energy according to the law of electromagnetic induction. With the improvement of productivity, most of the processes of the motor production adopt automation technology, including assembly.

During automatic assembly, the base needs to be conveyed firstly, the end covers are grabbed and placed at the end parts of the base by using the manipulator after being conveyed to the designated positions, then the end covers are continuously conveyed to fastening equipment, and the end covers and the base are connected and assembled by using connecting holes in the base and the end covers in a bolt or riveting mode and the like.

However, in the prior art, because a certain error exists in the manipulator, when the end cover is placed on the base, the connecting hole in the end cover and the connecting hole in the base are easily dislocated, so that a bolt or other connecting pieces are difficult to penetrate through for connection.

Therefore, there is a need to provide a new motor casing to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem provide a can lead when end cover and frame are connected and spacing, prevent the connecting hole dislocation and can't realize the motor housing of equipment.

In order to solve the technical problem, the motor casing provided by the utility model comprises a frame, wherein the frame is of a hollow structure, a front end cover and a rear end cover are respectively fixedly installed at two ends of the frame, a bearing inner cover is arranged in the rear end cover, the motor casing further comprises a plurality of limiting blocks, the limiting blocks are respectively fixedly installed on the outer edges of one sides, close to the frame, of the front end cover and the rear end cover, a plurality of limiting grooves are formed in the inner walls of the two ends of the frame, and the limiting grooves are matched with the limiting blocks; the stopper is the wedge, the stopper reduces along the direction width that is close to the frame gradually, the both sides inner wall slope of spacing groove sets up, and the spacing groove reduces along the direction width that is close to frame middle part position gradually. Through setting up stopper and spacing groove, when the equipment, the narrower one end of stopper inserts the spacing inslot earlier, under the slope inner wall effect of spacing groove, can make front end housing or rear end cap and frame align, prevents the junction dislocation, and then can fix the both ends at the frame with front end housing and rear end cap through screw or riveted mode.

Preferably, an arc-shaped clamping groove is formed in the inner wall of the limiting groove, a clamping portion is arranged on the limiting block, and the clamping portion can be inserted into the arc-shaped clamping groove and clamped with the inner wall of the arc-shaped clamping groove. When the end cover is arranged on the base, the clamping portion and the arc-shaped clamping groove are clamped and pre-fixed, so that the end cover is prevented from falling due to vibration generated when the end cover is fixed through bolts or riveting.

Preferably, joint portion includes two elastic parts, leaves the clearance between two elastic parts, the one end fixed mounting that the stopper was kept away from to the elastic part has the arc fixture block, the cambered surface of arc fixture block is outside. The arc-shaped clamping blocks are clamped into the arc-shaped clamping grooves by utilizing the elasticity of the elastic part, so that the pre-fixation of the end cover and the machine base is realized.

Preferably, the front end cover and the rear end cover are both provided with bolts, threaded holes are formed in the two ends of the machine base, and the bolts can be inserted into the threaded holes and connected with the inner walls of the threaded holes in a threaded mode during assembly.

Preferably, the four corners of the base are hollowed to form heat dissipation holes, a plurality of protrusions are arranged on the inner walls of the heat dissipation holes, and a first heat dissipation channel is formed between every two adjacent protrusions. Through forming louvre and first heat dissipation channel, improve the radiating effect.

Preferably, the reinforcing ribs are fixedly arranged in the radiating holes. The integral strength of the engine base is ensured on the premise of enhancing the heat dissipation effect.

Preferably, a plurality of second heat dissipation channels are arranged on the outer side of the base. Further improving the heat dissipation effect.

Compared with the prior art, the utility model provides a motor housing has following beneficial effect:

the utility model provides a motor shell, through setting up stopper and spacing groove, and the stopper is the wedge, and the inner wall of spacing groove sets up for the slope, consequently, when arranging the end cover in on the frame, utilizes the lateral wall of stopper and the inner wall butt direction of spacing groove to make the connecting hole on end cover and the frame correspond, guarantee that follow-up connection is fixed.

Drawings

Fig. 1 is a schematic structural diagram of a preferred embodiment of a motor casing according to the present invention;

FIG. 2 is a perspective exploded view of the device shown in FIG. 1;

FIG. 3 is an enlarged view of the portion B shown in FIG. 1;

fig. 4 is an enlarged schematic view of a portion a shown in fig. 1.

Reference numbers in the figures: 1. a machine base; 11. a limiting groove; 12. an arc-shaped clamping groove; 13. a threaded hole; 14. heat dissipation holes; 15. a protrusion; 16. a first heat dissipation channel; 17. reinforcing ribs; 18. a second heat dissipation channel; 2. a front end cover; 3. an inner bearing cover; 4. a rear end cap; 5. a limiting block; 51. a clamping part; 511. an elastic part; 512. an arc-shaped fixture block; 513. a gap; 6. and (4) bolts.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and embodiments.

Referring to fig. 1-4, the motor housing includes: the bearing assembly comprises a machine base 1, wherein the machine base 1 is of a hollow structure, a front end cover 2 and a rear end cover 4 are fixedly installed at two ends of the machine base 1 respectively, a bearing inner cover 3 is arranged in the rear end cover 4, and in order to ensure that the end cover is arranged at the end part of the machine base 1 and can not be misplaced during assembly, a plurality of limiting blocks 5 are arranged on the outer edge of one side, close to the machine base 1, of the end cover, a plurality of limiting grooves 11 are formed in the inner walls of the two ends of the machine base 1, and the limiting grooves 11 are matched with the limiting blocks 5; stopper 5 is the wedge, and stopper 5 reduces along the direction width that is close to frame 1 gradually, and the both sides inner wall slope of spacing groove 11 sets up, and spacing groove 11 reduces along the direction width that is close to frame 1 middle part position gradually. When the end cover is arranged at the end part of the base 1, the narrow end of the limiting block 5 enters the limiting groove 11 firstly, if the end cover deviates, the limiting block 5 is abutted against the inclined plane of the limiting groove 11, and the distance between the end cover and the base 1 is reduced, so that the end cover rotates to realize alignment.

An arc-shaped clamping groove 12 is formed in the inner wall of the limiting groove 11, the arc-shaped clamping groove 12 is close to the opening and gradually shrinks to form a groove structure with a wide inside opening and a narrow inside opening, a clamping portion 51 is arranged on the limiting block 5, and the clamping portion 51 can be inserted into the arc-shaped clamping groove 12 and clamped with the inner wall of the arc-shaped clamping groove 12. When the end cover lid closes on frame 1, joint portion 51 gets into in the arc draw-in groove 12, can realize fixing in advance, prevents to produce the vibration and lead to the end cover to drop when the equipment.

The clamping portion 51 comprises two elastic portions 511, a gap 513 is reserved between the two elastic portions 511, one end, far away from the limiting block 5, of each elastic portion 511 is fixedly provided with an arc-shaped clamping block 512, and the arc surface of each arc-shaped clamping block 512 faces outwards. Joint portion 51 is getting into arc draw-in groove 12 in-process, and elastic component 511 produces deformation earlier, makes clearance 513 reduce, and then makes arc fixture block 512 can cross the opening of arc draw-in groove 12, and after arc fixture block 512 got into arc draw-in groove 12, under elastic component 511's elastic force, make two arc fixture blocks 512 keep away from the expansion each other, and then the butt is at the inner wall of arc draw-in groove 12 to realize fixing in advance.

All be equipped with bolt 6 on front end housing 2 and the rear end cap 4, screw hole 13 is seted up at the both ends of frame 1, and during the equipment, bolt 6 can insert in screw hole 13 and with the inner wall threaded connection of screw hole 13.

The four corners of the base 1 are hollowed to form heat dissipation holes 14, the inner wall of each heat dissipation hole 14 is provided with a plurality of protrusions 15, and a first heat dissipation channel 16 is formed between every two adjacent protrusions 15.

Reinforcing ribs 17 are fixedly arranged in the heat dissipation holes 14.

A plurality of second heat dissipation channels 18 are arranged on the outer side of the machine base 1.

Compared with the prior art, the utility model provides a motor housing has following beneficial effect:

the utility model provides a motor shell, through setting up stopper 5 and spacing groove 11, and stopper 5 is the wedge, and the inner wall of spacing groove 11 sets up for the slope, consequently, when arranging the end cover on frame 1 in, utilizes the lateral wall of stopper 5 and the inner wall butt direction of spacing groove 11 to make the end cover correspond with the connecting hole on the frame 1, guarantee that follow-up connection is fixed.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims (7)

1. The utility model provides a motor shell, includes the frame, the frame is hollow structure, the both ends of frame fixed mounting respectively has front end housing and rear end cap, be equipped with bearing inner cup, its characterized in that in the rear end cap:

the limiting device is characterized by further comprising a plurality of limiting blocks, wherein the limiting blocks are respectively and fixedly arranged on the outer edges of one sides, close to the base, of the front end cover and the rear end cover, a plurality of limiting grooves are formed in the inner walls of the two ends of the base, and the limiting grooves are matched with the limiting blocks;

the stopper is the wedge, the stopper reduces along the direction width that is close to the frame gradually, the both sides inner wall slope of spacing groove sets up, and the spacing groove reduces along the direction width that is close to frame middle part position gradually.

2. The motor casing of claim 1, wherein an arc-shaped slot is formed on an inner wall of the limiting groove, and a clamping portion is disposed on the limiting block, and the clamping portion can be inserted into the arc-shaped slot and clamped with the inner wall of the arc-shaped slot.

3. The motor casing of claim 2, wherein the clamping portion comprises two elastic portions, a gap is left between the two elastic portions, an arc-shaped clamping block is fixedly mounted at one end of the elastic portion, which is far away from the limiting block, and the arc surface of the arc-shaped clamping block faces outwards.

4. The motor casing of claim 1, wherein the front cover and the rear cover are provided with bolts, and the two ends of the base are provided with threaded holes, so that the bolts can be inserted into the threaded holes and connected with the inner walls of the threaded holes in a threaded manner during assembly.

5. The motor casing of any one of claims 1-4, wherein heat dissipation holes are hollowed out at four corners of the base, a plurality of protrusions are disposed on the inner wall of each heat dissipation hole, and a first heat dissipation channel is formed between two adjacent protrusions.

6. The motor casing of claim 5, wherein the heat dissipation hole is fixedly provided with a reinforcing rib.

7. The motor casing of claim 6, wherein a plurality of second heat dissipation channels are formed on an outer side of the base.

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