CN210566049U - Planetary gear reduction box of motor for cleaning equipment - Google Patents

Abstract

The utility model relates to a planetary gear reducer box of a motor for cleaning equipment for cleaning floor or carpet. The planetary gear box comprises a gear box shell, planetary gears, a planetary gear carrier and a sun gear, wherein the sun gear drives the planetary gears to rotate, the planetary gears drive the planetary gear carrier to rotate, a sun gear bearing is arranged at each of two ends of the sun gear, two ends of the sun gear penetrate through the sun gear bearings, the sun gear bearings are located in the planetary gear carrier, planetary gear carrier bearings are respectively arranged at two sides of the planetary gear carrier, an inner ring of each planetary gear carrier bearing penetrates through the planetary gear carrier, and an outer ring of each planetary gear carrier bearing supports the gear box shell. The utility model discloses structural design is simple reliable, and the support with the sun gear both ends is whole to be put in the planet wheel carrier, and every end of sun gear is supported by a ordinary ball bearing, and ordinary ball bearing is not playing and is supporting planet wheel carrier rotation function, and both ends bearing position processing is convenient, and the simultaneous processing precision is high, can effectively reduce vibration noise.

Description

Planetary gear reduction box of motor for cleaning equipment

Technical Field

The utility model relates to a planetary gear reducer box of a motor for cleaning equipment for cleaning floor or carpet.

Background

The invention relates to a planetary reduction gearbox for a cleaning device motor in the market, which has two output modes, wherein one mode is that an outer gear ring rotates to drive a floor washing brush to clean the floor, and the other mode is that a planetary gear carrier rotates to drive a floor washing brush to clean the floor; the other end of the planet wheel carrier is provided with a common ball bearing 7, the common ball bearing 7 is arranged in the planet wheel carrier 1, the other end of the planet wheel carrier is provided with a special magnetic motor bearing 5 with a separable inner ring and outer ring, the inner ring of the magnetic motor bearing 5 and the common ball bearing 7 are arranged on the sun wheel 4 in parallel, and the outer ring of the magnetic motor bearing 5 is arranged in the gear box shell 3, so that the sun wheel end simultaneously plays a role in supporting the rotation of the sun wheel and the rotation of the planet wheel carrier, and the structural design at present has the following defects in precision and cost. 1. One end of the sun wheel is arranged on the planet wheel carrier, and the magneto bearing at the other end is arranged on the gear box shell, so that the installation precision is insufficient due to the fact that two ends of the sun wheel are arranged on two different parts, and the noise of the gear box is larger due to the fact that the installation precision is insufficient. 2. The sun gear is stressed unevenly, and the planet gear carrier is stressed while rotating, so that the service life of the sun gear is influenced; 3. the two ends of the planet wheel carrier are not well supported, so that the noise of the planet wheel 8 is influenced; 4. the magnetic motor bearing is expensive and high in cost.

Disclosure of Invention

Therefore, the utility model aims to provide a precision is easily controlled, the adult is low, the planetary gear reducing gear box of motor for the cleaning device that the noise is little.

The purpose of the utility model is realized like this.

The planetary gear reduction box comprises a gear box shell, planetary wheels, a planetary wheel carrier and a sun wheel, wherein the sun wheel drives the planetary wheels to rotate, the planetary wheel rotates to drive the planetary wheel carrier to rotate, two ends of the sun wheel are respectively provided with a sun wheel bearing, two ends of the sun wheel are arranged in the sun wheel bearings in a penetrating mode, the sun wheel bearings are located in the planetary wheel carrier, two sides of the planetary wheel carrier are respectively provided with a planetary wheel carrier bearing, an inner ring of the planetary wheel carrier bearing is sleeved on the planetary wheel carrier in a penetrating mode, and an outer ring of the planetary wheel carrier bearing supports the gear box shell.

The technical scheme can be further perfected as follows.

The planet wheel carrier bearing is a ball bearing.

The utility model has simple and reliable structural design, the supports at the two ends of the sun wheel are all placed in the planet wheel carrier, each end of the sun wheel is supported by a common ball bearing, the common ball bearing does not play the role of supporting the rotation of the planet wheel carrier, the bearing positions at the two ends are convenient to process, the processing precision is high, and the vibration noise can be effectively reduced; the two ends of the planet wheel carrier are supported on the gearbox shell through the roller bearings, the outer rings of the ball bearings are mounted on the gearbox shell, the structure can guarantee the high mounting precision of the bearings at the two ends of the planet wheel carrier, effectively reduces vibration noise, avoids using expensive magneto bearings, is low in cost, and can improve customer satisfaction.

Drawings

Fig. 1 is a schematic diagram of a prior art structure.

Fig. 2 is a schematic structural diagram of embodiment 1.

FIG. 3 is an exploded view of example 1.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and examples.

Embodiment 1, with reference to fig. 2 and 3, a planetary gear reducer of a motor for a cleaning device includes a gear box housing 1, a planetary gear 2, a planetary gear carrier 3, and a sun gear 4, where the sun gear 4 is driven by a motor (not shown in the figure), the sun gear 4 drives the planetary gear 2 to rotate, the planetary gear 2 rotates to drive the planetary gear carrier 3 to rotate, the gear box housing 1 is stationary, and the planetary gear carrier 3 rotates to drive a working component to clean the ground. Two ends of the sun gear 4 are respectively provided with a sun gear bearing 5, the sun gear bearings 5 are positioned in the planet gear carrier 3, but the sun gear bearings 5 do not bear the weight of the planet gear carrier 3, two sides of the planet gear carrier 3 are also respectively provided with planet gear carrier bearings 6, the inner ring of each planet gear carrier bearing 6 is sleeved on the planet gear carrier 3 in a penetrating way, and the outer ring of each planet gear carrier bearing 6 supports the gear box shell 1. The planet wheel carrier bearing is a ball bearing.

Claims (2)

1. The utility model provides a planetary gear reduction box of motor for cleaning device, includes gearbox housing, planet wheel carrier, sun gear, and sun gear drive planet wheel is rotatory, and planet wheel rotation drives planet wheel carrier rotation, its characterized in that: the two ends of the sun wheel are respectively provided with a sun wheel bearing, the two ends of the sun wheel penetrate through the sun wheel bearings, the sun wheel bearings are located in the planet wheel carrier body, the two sides of the planet wheel carrier are respectively provided with a planet wheel carrier bearing, the inner ring of the planet wheel carrier bearing is sleeved on the planet wheel carrier in a penetrating mode, and the outer ring of the planet wheel carrier bearing supports the gearbox shell.

2. A planetary gear reducer of a motor for a cleaning apparatus according to claim 1, characterized in that: the planet wheel carrier bearing is a ball bearing.

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