Motor with long service life

Abstract

The utility model relates to the technical field of motors, in particular to a long-life motor. A long-service-life motor comprises a motor shell, magnetic steel is installed in the motor shell, a bottom support is arranged at the bottom of the motor shell, a rotor is installed on the bottom support and the closed end of the top end of the motor shell through bearings, two carbon brushes are fixed to a base, the carbon brushes make contact with brush petals at the bottom of the rotor, and the carbon brushes are installed in carbon brush sleeves. According to the motor with the long service life, the carbon brush sleeve is fixedly arranged on the base, the carbon brush is arranged in the carbon brush sleeve, and the carbon brush is fixed by using the pull rod and the retaining plate, so that the carbon brush can be stably contacted with the brush petals, the normal operation of the motor is ensured, and the service life of the motor is effectively prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, and particularly relates to a motor with a long service life. Background Art

[0002] The motor uses battery induction to make the rotor rotate and provide a mechanical rotation mechanism. Currently, due to the problem of fit between the carbon brush mechanism and the brush petal, the contact between the carbon brush and the brush petal is unstable during the use of the motor, which ultimately affects the practical life of the entire motor.

[0003] In view of the above-mentioned defects, the designers have actively carried out research and innovation in order to create a long-life motor to make it more valuable for industrial use. Utility Model Content

[0004] In order to solve the above technical problems, the purpose of the utility model is to provide a motor with a long life.

[0005] The utility model discloses a long-life motor, comprising a motor housing, a magnetic steel installed in the motor housing, a bottom bracket at the bottom of the motor housing, a rotor installed on the bottom bracket and a closed end at the top of the motor housing through bearings, two carbon brushes are fixed on the bottom bracket, the carbon brushes are in contact with brush petals at the bottom of the rotor, and the carbon brushes are installed in a carbon brush sleeve.

[0006] This long-life motor installs the carbon brush in the carbon brush sleeve so that the carbon brush fits the brush petals on the rotor and can still fit after a long period of operation to meet usage requirements.

[0007] Furthermore, the carbon brush sleeve has an upwardly folded limit plate near the brush petal, and a pull rod is connected between the limit plate and the carbon brush. The pull rod is in a "Z" shape, with one end stuck in the through hole on the side wall of the carbon brush and the other end stuck in the limit plate. There is a gap between the limit plate and the carbon brush sleeve for placing the pull rod.

[0008] The pull rod will provide a limiting and pressing force for the carbon brush, so that the structure of the carbon brush is stable after it is placed and can be kept in contact for a long time.

[0009] Furthermore, a waist-shaped groove is formed on a side of the carbon brush sleeve close to the pull rod.

[0010] The waist-shaped groove is used for the end of the pull rod to be inserted and is used to limit the carbon brush.

[0011] Furthermore, there is an arc-shaped groove at the tail end of the carbon brush, the tail end of the backstop plate is a ring-shaped structure, which is stuck in the groove at the tail end of the carbon brush, and the front end of the backstop plate is an upwardly bent clamping plate, which is hooked on the upper edge plate of the carbon brush sleeve.

[0012] A clamping plate is inserted into the carbon brush sleeve, and the tail end of the clamping plate contacts the tail end of the carbon brush to provide a limit.

[0013] Furthermore, a slot is provided at the lower end of the motor housing to match the protrusion on the bottom bracket.

[0014] The motor housing and the bottom bracket are matched through protrusions and slots to provide installation guides.

[0015] Furthermore, the surface of the motor housing is covered with a full circle of protective cover.

[0016] A protective sleeve fixed to the surface of the motor housing provides protection.

[0017] Through the above scheme, the present invention has at least the following advantages: this long-life motor has a carbon brush sleeve fixedly installed on its base, the carbon brush is installed in the carbon brush sleeve, and the carbon brush is fixed using a pull rod and a stop plate, so that the carbon brush can stably contact with the brush petal, ensuring the normal operation of the motor and effectively extending the service life of the motor.

[0018] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings required for use in the embodiment will be briefly introduced below. It should be understood that the following drawings only show a certain embodiment of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a structural schematic diagram of the utility model;

[0021] Figure 2 It is the front view of the utility model;

[0022] Figure 3 It is a schematic diagram of the rotor structure of the utility model;

[0023] Figure 4 It is a schematic diagram of the bottom support structure of the utility model;

[0024] In the figure, 1, motor housing, 2, magnetic steel, 3, rotor, 4, bottom bracket, 5, carbon brush, 6, brush flap, 7, carbon brush sleeve, 8, limit plate, 9, pull rod, 10, stop plate, 11, protective cover, 12, clamping plate. DETAILED DESCRIPTION

[0025] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0026] See also Figure 1-Figure 4 The motor housing 1 of this long-life motor has multiple through holes for air circulation, and a base 4 is fixed at the bottom. A rotor 3 is movably mounted on the base 4 and the motor housing 1 through bearings, and a carbon brush sleeve 7 with a blocked tail end is fixed on the base 4. The carbon brush 5 is installed in the carbon brush sleeve 7 so that the carbon brush 5 contacts the brush petal 6 to ensure that the motor can operate normally.

[0027] See also Figure 3 and Figure 4 The front end of the carbon brush sleeve 7 is a limit plate 8 folded upward, which is in the shape of a hook. The pull rod 9 is a "Z"-shaped structure, one end of which is stuck in the limit plate 8 and the other end is stuck in the carbon brush 5. The position of the carbon brush is limited by the pull rod 9.

[0028] A waist-shaped groove is provided on one side of the carbon brush sleeve 7, so that the pull rod 9 can be moved and fixed in the waist-shaped groove.

[0029] There is an arc-shaped groove at the tail end of the carbon brush 5, and the ring-shaped structure at the tail end of the backstop plate 10 is just stuck in this groove. The front end of the backstop plate 10 is a clamping plate 12, and the clamping plate 12 is hooked on the upper plate of the carbon brush sleeve 7, so that the backstop plate 10 is fixed. The backstop plate 10 limits the carbon brush 5 and achieves the purpose of backstop.

[0030] There is a slot at the lower end of the motor housing 1 , and a protrusion corresponding to the slot is provided on the bottom bracket 4 , which serves the purpose of guiding and fixing the motor housing 1 .

[0031] The protective cover 11 covering the motor housing 1 is fixed by bolts to provide protection for the motor housing 1 .

[0032] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0033] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0034] Finally: The above description is only a preferred implementation mode of the present utility model and is not intended to limit the present utility model. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. A long-life motor, comprising a motor housing (1), a magnetic steel (2) installed in the motor housing (1), characterized in that: A bottom bracket (4) is provided at the bottom of the motor housing (1), a rotor (3) is mounted on the bottom bracket (4) and the closed end at the top of the motor housing (1) via a bearing, two carbon brushes (5) are fixed on the bottom bracket (4), the carbon brushes (5) are in contact with a brush flap (6) at the bottom of the rotor (3), and the carbon brushes (5) are mounted in a carbon brush sleeve (7).

2. A long-life motor according to claim 1, characterized in that: The carbon brush sleeve (7) has a limit plate (8) folded upward at a position close to the brush flap (6), and a pull rod (9) is connected between the limit plate (8) and the carbon brush (5). The pull rod (9) is in a "Z" shape, with one end stuck in a through hole on the side wall of the carbon brush (5) and the other end stuck in the limit plate (8). There is a gap between the limit plate (8) and the carbon brush sleeve (7) for placing the pull rod (9).

3. A long-life motor according to claim 2, characterized in that: The carbon brush sleeve (7) is provided with a waist-shaped groove on one side close to the pull rod (9).

4. A long-life motor according to claim 3, characterized in that: An arc-shaped groove is provided at the tail end of the carbon brush (5); the tail end of the stop plate (10) is a ring-shaped structure and is clamped in the groove at the tail end of the carbon brush (5); the front end of the stop plate (10) is a clamping plate (12) bent upward, and the clamping plate (12) is hooked on the upper edge plate of the carbon brush sleeve (7).

5. A long-life motor according to claim 4, characterized in that: A slot is provided at the lower end of the motor housing (1) and is matched with the protrusion on the bottom bracket (4).

6. A long-life motor according to claim 5, characterized in that: The surface of the motor housing (1) is covered with a full circle of protective sleeve (11).

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