CN2197519Y

CN2197519Y - Speed reducer with balance wheel

Info

Publication number: CN2197519Y
Application number: CN 94205869
Authority: CN
Inventors: 刘根喜
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-03-26
Filing date: 1994-03-26
Publication date: 1995-05-17
Anticipated expiration: 2004-03-26

Abstract

The utility model relates to a pin shaft type speed reducer with a balance wheel, which is composed of an input shaft, a balance wheel, an internal gear, a positioning pin, an output shaft and a box body. During the working process of the mechanism, the input shaft drives the balance wheel to make circumference translational motion around the positioning pin fixed on the box body, and simultaneously, the balance wheel drives the internal gear engaged with the balance wheel to rotate. Owing to the action of teeth difference, the purpose of deceleration is achieved. The utility model has the advantages of simple structure, small size, light weight, low cost, stable driving, low noise, high driving efficiency and large bearing capacity.

Description

Speed reducer with balance wheel

The utility model belongs to the retarder in the mechanical field, particularly a kind of pin axle type balance-wheel speed reducer.

At present, widely used garden stud wheel retarder volume is big, structure is not compact; The worm reducer transmission efficiency is low, processing difficulties, the flank of tooth are easy to wear; Plane table thermoconductivity meter complex structure, requirement on machining accuracy height.

The purpose of this utility model is in order to overcome the deficiency in the above-mentioned technology, and a kind of pin axle type balance-wheel speed reducer is provided.Its not only little, simple in structure, easy processing of volume, cost are low, and the transmission efficiency height, and bearing capacity is big.

The utility model is achieved in that the pin axle type balance-wheel speed reducer, is made up of input shaft, escapement, internal gear, locating stud, output shaft, casing.On the eccentric diameter of axle of the input shaft of in casing, installing, adorning the escapement that has pin-and-hole on the end face, escapement and internal gear engagement, locating stud one end is fixedly mounted on the casing, and another external part matches with the pin-and-hole of escapement end.

When input shaft drives the escapement motion, be inserted in locating stud in the escapement pin-and-hole and remain with hole wall and contact, force escapement to do garden week translational motion around fixed axis, escapement drives the internal gear rotation that is engaged with, and power is reached output shaft.Owing between escapement and the internal gear tooth difference is arranged, thereby reaches the purpose of deceleration.

The utility model compared with prior art has: simple in structure, volume is little, in light weight, cost is low, stable drive, noise is little, transmission efficiency is high, bearing capacity is big.

Fig. 1 is the structural representation of pin axle type balance-wheel speed reducer.

Fig. 2 is the schematic representation that locating stud cooperates with escapement.

Below in conjunction with accompanying drawing the utility model is further described.

On the eccentric diameter of axle of power by input shaft 1 input, input shaft 1 escapement 2 is housed, the garden of escapement 2 end faces has pin-and-hole on week, and pin-and-hole is for being distributed on the garden post hole of garden on week of escapement 2 end faces more than at least four.Escapement 2 is outer garden stud wheel and internal gear 3 engagements.Locating stud 4 one ends are fixedly mounted on the casing 6, and another external part inserts in the pin-and-hole of escapement 2.When input shaft 1 drove escapement 2 motions, locating stud 4 remained with the pin-and-hole wall of escapement 2 and contacts, and forced escapement 2 to do garden week translational motion round locating stud 4, and the internal gear 3 that escapement 2 drives simultaneously are engaged with rotates, and internal gear 3 is passed to output shaft 5 with power.Because the number of teeth of escapement 2 and internal gear 3 has a tooth difference, when input shaft 1 rotates a week, internal gear 3 rotates in the 1/Z, so its velocity ratio is: in the stage gear ratio i=Z, in the two stage gear ratio i=Z * Z ' in.Because escapement is close with the internal gear number of teeth, the number of teeth that is meshing with each other is many, thereby has improved bearing capacity greatly.

Claims

1, a kind of pin axle type balance-wheel speed reducer, form by input shaft 1, escapement 2, internal gear 3, locating stud 4, output shaft 5, casing 6, it is characterized in that on the eccentric diameter of axle of the input shaft 1 of installation in casing 6, adorning the escapement 2 that has pin-and-hole on the end face, escapement 2 and internal gear 3 engagements, locating stud 4 one ends are fixedly mounted on the casing 6, and another external part matches with pin-and-hole on escapement 2 end faces.

2, pin axle type balance-wheel speed reducer according to claim 1 is characterized in that the pin-and-hole of garden on week of escapement 2 end faces is post hole, garden uniform more than at least four.

3, pin axle type balance-wheel speed reducer according to claim 1 is characterized in that the position of the garden Zhou Junbu pin-and-hole on hard-wired locating stud 4 on the casing 6 and escapement 2 end faces is corresponding.