CN202495839U

CN202495839U - Direct current permanent magnet motor with reduction gear box

Info

Publication number: CN202495839U
Application number: CN2012200902632U
Authority: CN
Inventors: 徐曙春
Original assignee: CHANGZHOU TIANAN NIKODA ELECTRONIC Co Ltd
Current assignee: CHANGZHOU TIANAN NIKODA ELECTRONIC Co Ltd
Priority date: 2012-03-12
Filing date: 2012-03-12
Publication date: 2012-10-17
Anticipated expiration: 2022-03-12

Abstract

The utility model discloses a direct current permanent magnet motor with a reduction gear box. The direct current permanent magnet motor comprises the reduction gear box, wherein the reduction gear box comprises a box body and a box cover, the box body and the box cover are fixedly connected, an output shaft, an input shaft and an intermediate shaft are rotatablely supported on the box body and the box cover, a first stage large gear and a first stage pinion gear are sleeved on the intermediate shaft, a second stage large gear is sleeved on the output shaft, the second stage large gear and the first stage pinion gear are meshed with each other, a duplex gear is sleeved on the input shaft, the duplex gear has a pinion gear and a large gear which is driven by the direct current permanent magnet motor, the pinion gear and the first stage large gear are meshed with each other, the duplex gear is made from an iron-based powder metallurgy material, and the first stage pinion gear is made from a polyformaldehyde material. The direct current permanent magnet motor with the reduction gear box reduces noises and prolongs service life of the motor.

Description

The dc permanent magnet motor of band reduction gear box

Technical field

The utility model relates to a kind of dc permanent magnet motor with reduction gear box, belongs to the motor application technical field.

Background technology

At present; The use that combines of the normal and reduction gear box of dc permanent magnet motor under the prior art, but the noise that brings of reduction gear box is bigger in actual use, the gear rapid wear; Reduced the useful life of motor; Use to the user and to have brought inconvenience, be unfavorable for the developing in market, the main cause of finding to cause high noisy and low life-span after deliberation is that the improper gear wear concentricity serious and gear that causes of material chosen of gear is inconsistent.

Summary of the invention

The purpose of the utility model is the deficiency that overcomes prior art, and the dc permanent magnet motor of a kind of low noise with the band reduction gear box that increases motor useful life is provided.

The technical scheme that realizes the utility model purpose is: a kind of dc permanent magnet motor with reduction gear box, and it comprises reduction gear box, this reduction gear box comprises casing and case lid; Casing is fixedly connected with case lid; Rotatably mounted on casing and the case lid have output shaft, power shaft and a jack shaft, is set with first order gear wheel and first order pinion on the described jack shaft, is set with second level gear wheel on the described output shaft; This second level gear wheel and first order pinion are meshed; Be set with duplicate gear on the described power shaft, the gear wheel that this duplicate gear has pinion and driven by dc permanent magnet motor, pinion is meshed with first order gear wheel; Described duplicate gear is processed by iron-base powder metallurgy material, and described first order pinion is processed by polyformaldehyde material.。

After having adopted technique scheme, the ability that the first order pinion of being processed by polyformaldehyde material can bearing radial force in transmission process is stronger, has prolonged its useful life, and is also smaller by the noise that it causes; The utility model has adopted duplicate gear; Two original required gear one are made, improved the concentricity requirement between gear, reduced manufacturing procedure and mismachining tolerance; And adopt iron-base powder metallurgy material to process; Both reached required precision, reduced cost again, the noise phenomenon of having avoided concentricity to differ causing.

Description of drawings

Fig. 1 is the three-dimensional exploded view of the reduction gear box of the utility model;

Fig. 2 is the structure chart of the duplicate gear of the utility model;

Fig. 3 is the B-B cutaway view of Fig. 2.

Embodiment

For the content that makes the utility model is expressly understood more easily, below according to specific embodiment and combine accompanying drawing, the utility model is done further detailed explanation,

Shown in Fig. 1 ~ 3, a kind of dc permanent magnet motor with reduction gear box, it comprises reduction gear box; This reduction gear box comprises casing 1 and case lid 2; Casing 1 is fixedly connected with case lid 2, and rotatably mounted on casing 1 and the case lid 2 have output shaft 3, power shaft 4 and a jack shaft 5, is set with first order gear wheel 6 and first order pinion 7 on the described jack shaft 5; Be set with second level gear wheel 8 on the described output shaft 3; This second level gear wheel 8 is meshed with first order pinion 7, is set with duplicate gear 9 on the described power shaft 4, the gear wheel 9-2 that this duplicate gear 9 has pinion 9-1 and driven by dc permanent magnet motor; Pinion 9-1 is meshed with first order gear wheel 6; Described duplicate gear 9 is processed by iron-base powder metallurgy material, and described first order pinion 7 adopts polyformaldehyde materials to process, for example: the 100KM of Du Pont.

The operation principle of the utility model is following:

The first order pinion of processing by polyformaldehyde material 7 can bearing radial force in transmission process ability stronger, prolonged its useful life, also smaller by the noise that it causes; The utility model has adopted duplicate gear 9; Two original required gear one are made, improved the concentricity requirement between gear, reduced manufacturing procedure and mismachining tolerance; And adopt iron-base powder metallurgy material to process; Both reached required precision, reduced cost again, the noise phenomenon of having avoided concentricity to differ causing.

Above-described specific embodiment; Purpose, technical scheme and beneficial effect to the utility model have carried out further explain, it should be understood that the above is merely the specific embodiment of the utility model; Be not limited to the utility model; All within the spirit and principle of the utility model, any modification of being made, be equal to replacement, improvement etc., all should be included within the protection range of the utility model.

Claims

1. dc permanent magnet motor with reduction gear box; It comprises reduction gear box; This reduction gear box comprises casing (1) and case lid (2), and casing (1) is fixedly connected with case lid (2), and casing (1) and case lid (2) are gone up rotatably mounted have output shaft (3), power shaft (4) and jack shaft (5); Be set with first order gear wheel (6) and first order pinion (7) on the described jack shaft (5); Be set with second level gear wheel (8) on the described output shaft (3), this second level gear wheel (8) and first order pinion (7) are meshed, and it is characterized in that: be set with duplicate gear (9) on the described power shaft (4); The gear wheel (9-2) that this duplicate gear (9) has pinion (9-1) and driven by dc permanent magnet motor; Pinion (9-1) is meshed with first order gear wheel (6), and described duplicate gear (9) is processed by iron-base powder metallurgy material, and described first order pinion (7) is processed by polyformaldehyde material.