CN212258602U - Structure for fixing DC motor - Google Patents

Abstract

The utility model discloses a simple and fixed reliable structure for fixing direct current motor of assembly. The structure for fixing the direct current motor comprises a box body, the direct current motor and a box cover; a motor mounting part is arranged in the box body and comprises a first limiting support groove, a second limiting support groove and a fixing structure, wherein the first limiting support groove and the second limiting support groove are arranged at intervals; the direct current motor is provided with an adaptive structure, the direct current motor is arranged on the motor mounting part, the front end of the end cover of the direct current motor is embedded and mounted in the first limiting support groove, the rear end of the stator shell of the direct current motor is embedded and mounted in the second limiting support groove, and the adaptive structure is matched with the fixed structure; the case lid sets up on the box and covers direct current motor, and is provided with the cushion between case lid and the direct current motor. The direct current motor is assembled and fixed by the structure, so that the direct current motor fixing structure is simple and convenient to operate, good in fixing effect and high in reliability, and can effectively prevent the direct current motor from moving in work.

Description

Structure for fixing DC motor

Technical Field

The utility model relates to a fixed knot constructs, especially a structure for fixing direct current motor.

Background

The dc motor is a motor that converts dc electric energy into mechanical energy, and is widely used due to its good speed regulation performance, and generally needs to be matched with a reduction box in the use process. For example: the P-gear parking motor is applied to a parking safety device for preventing a vehicle from sliding, forms a P-gear parking motor together with a speed reducer and a control circuit board, acts on a transmission of the automobile, locks a transmission shaft of the transmission during parking, and realizes that the automobile is reliably parked at a certain position. However, the existing structure for fixing the direct current motor on the reduction gearbox often has the following problems: 1) the motor is too complex, so that the motor is inconvenient to disassemble and maintain after being installed and fixed; 2) the fixing effect is general, and the direct current motor is easy to play during working, so that the stable working of the motor is influenced; 3) the vibration reduction effect is poor, and the direct current motor is easy to generate noise during working.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a simple and fixed reliable structure for fixing direct current motor of assembly.

The utility model provides a technical scheme that its technical problem adopted is: the structure for fixing the direct current motor comprises a box body, the direct current motor and a box cover; a motor mounting part is arranged in the box body, and comprises a first limiting support groove and a second limiting support groove which are arranged at intervals, and a fixing structure arranged between the first limiting support groove and the second limiting support groove; the direct current motor is provided with an adaptive structure corresponding to the fixed structure, the direct current motor is arranged on the motor mounting part, the front end of the end cover of the direct current motor is embedded and mounted in the first limiting support groove, the rear end of the stator shell of the direct current motor is embedded and mounted in the second limiting support groove, and the adaptive structure of the direct current motor is matched with the fixed structure; the case lid sets up on the box and covers direct current motor, and is provided with the cushion between case lid and the direct current motor.

Further, the fixing structure is a columnar protrusion, and the adapting structure is a hole sleeved on the columnar protrusion.

Further, the adapter structure is disposed on the end cap.

Furthermore, the number of the elastic cushions is two, and the two elastic cushions are respectively a front cushion arranged between the end cover and the box cover and a rear cushion arranged between the rear end of the stator shell and the box cover.

Further, the front pad and the rear pad are made of rubber.

Furthermore, the upper portion of end cover is equipped with first mounting hole, the front pad is the structure with end cover upper portion assorted, be equipped with the first erection column of embedding in the first mounting hole on the front pad.

Furthermore, the left side and the right side of the upper portion of the rear end of the stator shell are respectively provided with a second mounting hole, the rear cushion is of an arc structure matched with the upper portion of the rear end of the stator shell, and a second mounting column embedded into the mounting holes is arranged on the rear cushion.

Further, the box cover is bonded or welded on the box body.

The utility model has the advantages that: the direct current motor is assembled and fixed by using the structure, so that the operation is simple and convenient, the fixing effect is good, and the reliability is higher; can effectively spacing and support direct current motor through first spacing support recess and the spacing support recess of second, prevent direct current motor work in taking place about the drunkenness, through adaptation structure and fixed knot structure cooperation together, can prevent that direct current motor work from taking place drunkenness around, cover direct current motor through the case lid and be provided with the cushion between case lid and direct current motor, can prevent that direct current motor work from taking place drunkenness from top to bottom.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is a schematic three-dimensional structure of the box body of the present invention;

labeled as: the motor case comprises a case body 100, a first limit support groove 111, a second limit support groove 112, a fixing structure 113, a direct current motor 200, an end cover 210, an adapting structure 211, a first mounting hole 212, a stator housing 220, a second mounting hole 221, a case cover 300, a front pad 310, a first mounting column 311, a rear pad 320 and a second mounting column 321.

Detailed Description

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

In the description of the present invention, it should be noted that the terms "front", "back", "left", "right", "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in fig. 2, and are only for convenience of description, and do not indicate or imply that the device or component to be referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Referring to fig. 1, 2 and 3, the structure for fixing the dc motor includes a case 100, a dc motor 200 and a case cover 300; a motor mounting part is arranged in the box body 100, and comprises a first limiting support groove 111 and a second limiting support groove 112 which are arranged at intervals, and a fixing structure 113 arranged between the first limiting support groove 111 and the second limiting support groove 112; the direct current motor 200 is provided with an adaptive structure 211 corresponding to the fixed structure 113, the direct current motor 200 is arranged on a motor mounting part, the front end of an end cover 210 is embedded and mounted in the first limiting support groove 111, the rear end of a stator shell 220 is embedded and mounted in the second limiting support groove 112, and the adaptive structure 211 is matched with the fixed structure 113; the cover 300 is disposed on the case 100 and covers the dc motor 200, and an elastic pad is disposed between the cover 300 and the dc motor 200.

Utilize the in-process of the fixed direct current motor 200 of above-mentioned structural assembly, can effectively spacing and support direct current motor 200 through first spacing support groove 111 and second spacing support groove 112, prevent direct current motor 200 play about taking place in the work, be in the same place through adaptation structure 211 and fixed knot structure 113 cooperation, can prevent direct current motor 200 play around taking place in the work, cover direct current motor 200 and be provided with the cushion between case lid 300 and direct current motor 200 through case lid 300, can prevent direct current motor 200 play from taking place from top to bottom in the work, the assembly is simple, it is fixed reliable.

The case 100 is mainly used for accommodating the dc motor 200 and other components, and the case 100 may be various, preferably a reduction gear case. The first limit support groove 111 of the motor mounting part can be used for placing the front end of the end cover 210 of the direct current motor 200, and plays a role in supporting and limiting the direct current motor 200; the first limiting support groove 111 generally comprises a concave arc surface for supporting, and the front end of the concave arc surface is generally provided with a step or a blocking part for limiting; the second limit support groove 112 can be used for placing the rear end of the stator shell 220 of the direct current motor 200, and plays a role in supporting and limiting the direct current motor 200; the second limit support groove 112 generally includes a concave arc surface for supporting, and the rear end of the concave arc surface is generally provided with a step, a blocking part or an end surface for limiting; the fixing structure 113 is mainly used for horizontally fixing the dc motor 200 to prevent the dc motor from moving or rotating integrally; the fixing structure 113 may be various, for example: snaps, pins, keys, protrusions, grooves, and the like.

The dc motor 200 generally includes a stator and a rotor, the stator includes an end cover 210, a stator housing 220 and magnetic steel, the front end of the stator housing 220 is provided with a mounting opening, the inside of the rear end is provided with a first bearing hole, a first bearing is arranged in the first bearing hole, and the magnetic steel is arranged in a circle on the inner wall of the stator housing 220; the end cover 210 is mounted on a mounting opening at the front end of the stator housing 220, a brush holder is arranged on the end cover 210, a second bearing hole is formed in the end cover 210, and a second bearing is arranged in the second bearing hole; the rotor includes an armature shaft, a commutator and a rotor winding, the armature shaft is disposed in the stator housing 220 and assembled with the second bearing, the front end of the armature shaft extends into the end cap 210, and the rear end of the armature shaft is assembled with the first bearing; the commutator is arranged on the armature shaft part between the first bearing and the second bearing, and the rotor winding is arranged on the armature shaft part between the commutator and the first bearing and is positioned in a ring enclosed by the magnetic steel. The end cap 210 is mainly used for mounting parts such as a second bearing hole, a brush holder and the like, and protecting the parts in the stator housing 220; the end cap 210 is typically made of an aluminum alloy; the adapting structure 211 is adapted to the fixing structure 113, and is mainly used for being matched with the fixing structure 113 to fix the dc motor 200. The stator housing 220 is mainly used for mounting components such as a first bearing and magnetic steel, and when the rotor is electrified, a magnetic field is generated and interacts with the magnetic field of the magnetic steel to generate torque.

Preferably, as shown in fig. 1 and 3, the fixing structure 113 is a stud-shaped protrusion, and the adapting structure 211 is a hole sleeved on the stud-shaped protrusion.

Specifically, the fitting structure 211 is disposed at a lower portion of the end cap 210.

The box cover 300 is mainly used for covering and protecting the direct current motor 200 and protecting other parts in the box body 100, and the box cover 300 can also compress the elastic pad, so that the direct current motor 200 is effectively prevented from moving up and down in the working process; the cover 300 may be made of a variety of materials, preferably plastic; the cover 300 is generally bonded or welded to the case 100, and preferably, the cover 300 is fixed to the case 100 by ultrasonic welding.

The elastic cushion mainly plays roles of buffering, vibration reduction, noise reduction, motor compression and the like; the elastic pad is generally made of an elastic material, preferably rubber; one or more resilient pads may generally be provided as desired. Preferably, as shown in fig. 1 and 2, the number of the elastic pads is two, and the two elastic pads are a front pad 310 disposed between the end cover 210 and the cover 300 and a rear pad 320 disposed between the rear end of the stator housing 220 and the cover 300.

Specifically, as shown in fig. 1, a first mounting hole 212 is formed in an upper portion of the end cover 210, the front pad 310 is a structure matched with the upper portion of the end cover 210, and a first mounting post 311 embedded in the first mounting hole 212 is formed on the front pad 310.

Specifically, as shown in fig. 2, second mounting holes 221 are formed in the left side and the right side of the upper portion of the rear end of the stator housing 220, the rear pad 320 is an arc-shaped structure matched with the upper portion of the rear end of the stator housing 220, and second mounting posts 321 embedded in the mounting holes 221 are arranged on the rear pad 320.

Claims (8)

1. The structure for fixing the direct current motor comprises a box body (100), the direct current motor (200) and a box cover (300); the method is characterized in that: a motor mounting part is arranged in the box body (100), and comprises a first limiting support groove (111) and a second limiting support groove (112) which are arranged at intervals, and a fixing structure (113) arranged between the first limiting support groove (111) and the second limiting support groove (112); the direct current motor (200) is provided with an adaptive structure (211) corresponding to the fixed structure (113), the direct current motor (200) is arranged on the motor installation part, the front end of an end cover (210) of the direct current motor is embedded and installed in the first limiting support groove (111), the rear end of a stator shell (220) of the direct current motor is embedded and installed in the second limiting support groove (112), and the adaptive structure (211) of the direct current motor is matched with the fixed structure (113); the box cover (300) is arranged on the box body (100) and covers the direct current motor (200), and an elastic pad is arranged between the box cover (300) and the direct current motor (200).

2. The structure for fixing a direct current motor according to claim 1, wherein: the fixing structure (113) is a columnar protrusion, and the adapting structure (211) is a hole sleeved on the columnar protrusion.

3. The structure for fixing a direct current motor according to claim 2, wherein: the adapting structure (211) is arranged at the lower part of the end cover (210).

4. The structure for fixing a direct current motor according to any one of claims 1 to 3, characterized in that: the number of the elastic pads is two, and the two elastic pads are respectively a front pad (310) arranged between the end cover (210) and the box cover (300) and a rear pad (320) arranged between the rear end of the stator shell (220) and the box cover (300).

5. The structure for fixing a direct current motor according to claim 4, wherein: the front pad (310) and the rear pad (320) are made of rubber.

6. The structure for fixing a direct current motor according to claim 4, wherein: the upper portion of end cover (210) is equipped with first mounting hole (212), front pad (310) be with end cover (210) upper portion assorted structure, be equipped with on front pad (310) and imbed first mounting post (311) in first mounting hole (212).

7. The structure for fixing a direct current motor according to claim 4, wherein: the left and right sides on stator shell (220) rear end upper portion all is equipped with second mounting hole (221), back pad (320) are the arc structure that matches with stator shell (220) rear end upper portion, be equipped with second erection column (321) in embedding second mounting hole (221) on back pad (320).

8. The structure for fixing a direct current motor according to claim 1, wherein: the box cover (300) is bonded or welded on the box body (100).

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