CN102213298A

CN102213298A - Coaxial constant-speed dynamic contact type overload automatic torque-increasing variable-speed motor

Info

Publication number: CN102213298A
Application number: CN2010101383559A
Authority: CN
Inventors: 不公告发明人
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-04-02
Filing date: 2010-04-02
Publication date: 2011-10-12

Abstract

The invention relates to a variable-speed transmission device, in particular to a coaxial automatic torque-increasing variable-speed motor which is dragged by a motor, changes the speed by using a planetary gear and realizes automatic switching to increase the torque and run at a low speed during overloading based on a lever principle of the gear. When the load is normal, a planet carrier (8) and a driving wheel (5) are tightened by a touch device, and the planet carrier (8) drives an output shaft (7) to realize coaxial rotation; when the value of the load is greater than a set value, a system is touched to run; a gear ring (4) is fixed by a stop rod (1) so as to form a pivot for the planet carrier (8); and the driving wheel (5) transmits power to the planet carrier (8) through the planetary gear (2) and the gear ring (4) and drives the output shaft (7) to realize homodromous speed-changing and torque-increasing running. The coaxial automatic torque-increasing variable-speed motor has a simple structure, greatly reduces the power configuration of the motor and saves electric energy.

Description

Coaxial increasing automatically with quick-action touch overload turned round variable-speed motor

Technical field

The present invention relates to a kind of variable speed drive, particularly drag, utilize planetary gear speed-changing, and utilize the lever principle of gear, change coaxial the increasing automatically that increases the moment of torsion low-speed running when realizing overload automatically and turn round variable-speed motor by motor.

Background technique

The motor that present existing mechanical transmission device is disposed, for reaching the moment of torsion of load request when starting, its power often is twice abovely than the run well power that requires of load that it dragged, and when running well, has only used half of configuration motor power (output); Though existing in addition decelerator moment of torsion is big, but can't realize the speed of former motor.

Summary of the invention

At the deficiencies in the prior art, the invention provides a kind of coaxial increasing automatically and turn round variable-speed motor with quick-action touch overload, combine the working principle of motor and speed reducer, realized utilizing the power of various motor, input shaft drives output shaft by the shake-up system and realizes coaxial running, when load surpasses setting value, touch system acting, make the planetary gear speed-changing system works, realization low speed increases turns round running, when load reaches normal value, touches the mechanical transmission of system recovery d-axis transmission, reduce its power of electric motor configuration greatly, saving power.

Coaxial increasing automatically with quick-action touch overload of the present invention turned round variable-speed motor, it is characterized in that shell 3 is used for being connected with motor, and is equipped with the stop rod that can slide up and down; Motor reel assembling driving wheel; Planet carrier assembling two cover planetary pinions; Planet carrier combines with driving wheel, and its connecting part is equipped with touch device, and described touch device is made up of work in coordination spring and bayonet lock of two covers that are assemblied in planet carrier and driving wheel connecting part; Planet carrier combines with output shaft.

Above-mentioned coaxial increasing automatically with quick-action touch overload turned round variable-speed motor, and its feature also is, is equipped with gear ring on the planet carrier, and the internal tooth of described gear ring cooperates with planetary pinion, and the outside of gear ring is unidirectional tooth, can stop the backward rotation of gear ring under the effect of stop rod.

When hanging down moment of torsion, touch device fixed carrier and driving wheel, driving wheel drive the planet carrier rotation and power are reached the output shaft that drives load, realize coaxial with fast transmission; Gear ring is with the planet carrier forward rotation at this moment, because the gear ring outside is unidirectional tooth, so stop rod can not influence the operation of device this moment.

When load end produces overload, moment of torsion increases, and spring suffers oppression, and bayonet lock and driving wheel produce and slide, planetary pinion promotes the gear ring counter-rotating, rotate to several angle, stop rod is fixed gear ring, and planet carrier is formed fulcrum, driving wheel is by planetary pinion, gear ring, power is reached planet carrier, drive output shaft, realize that speed change increases in the same way to turn round running.

Description of drawings

Fig. 1 is shown as general assembly planimetric map of the present invention;

Fig. 2 is shown as movable contact device schematic representation of the present invention;

Fig. 3 is shown as speed change of the present invention and gear ring stop schematic representation;

Wherein: 1-stop rod, 2-planetary pinion, 3-shell, 4-gear ring, 5-driving wheel, 6-motor shaft, 7-output shaft, 8-planet carrier, 9-bayonet lock, 10-spring, 11-support.

Embodiment

Below by specific embodiment the present invention is further specified.

This machine has shell 3 to be used for being connected with motor, and is equipped with the stop rod 1 that can slide up and down; Motor shaft 6 assembling driving wheels 5; Planet carrier 8 assemblings two cover planetary pinions 2; Realize when being used to realize complicated the variation just that speed increases and turn round planet carrier 8 and overlap the touch device that cooperates with bayonet lock 9 by spring 10 with driving wheel 5 junctions assembling two; Combine the output shaft 7 that drives load with planet carrier 8.

Motor shaft 6 assembles driving wheel 5 as the input shaft of variable-speed motor on the axle, its gear teeth cooperate with the planetary pinion 2 of planet carrier 8 assemblings, and planetary pinion 2 reaches gear ring 4 with power.

When the motor forward starts, by the spring 10 compressing bayonet locks 9 of planet carrier 8 assemblings that planet carrier is fixing with the driving wheel 5 that is assemblied on the motor shaft 6, drive output shaft 7, realize coaxial with fast transmission.

When load end produces overload, spring 10 suffers oppression, bayonet lock 9 produces with driving wheel 5 and slides, and planetary pinion 2 promotes gear ring 4 counter-rotatings, rotates to several angle, stop rod 1 is fixed gear ring 4, planet carrier 8 is formed fulcrum, and driving wheel 5 reaches planet carrier 8 by planetary pinion 2, gear ring 4 with power, drive output shaft 7, realize that speed change increases in the same way to turn round running.

When load reached normal value, bayonet lock 10 recoveries were fixing with driving wheel 5, directly drive planet carrier 8, and output shaft and motor shaft are turned round with speed.

Claims

1. coaxial increasing automatically with quick-action touch overload turned round variable-speed motor, and its shell (3) is connected with motor, it is characterized in that, shell (3) is equipped with the stop rod that can slide up and down (1), motor reel (6) assembling driving wheel (5); Planet carrier (8) assembling planetary pinion (2); Planet carrier (8) combines with driving wheel (5), and its connecting part is equipped with touch device, and described touch device can make planet carrier (8) and driving wheel break away from bonding state when moment of torsion increases; Planet carrier (8) combines with output shaft (7); Be equipped with gear ring (4) on the planet carrier (8), the internal tooth of described gear ring (4) cooperates with planetary pinion (2), and the outside of gear ring (4) is unidirectional tooth, can stop the backward rotation of gear ring (4) under the effect of stop rod (1).

2. coaxial increasing automatically with quick-action touch overload as claimed in claim 1 turned round variable-speed motor, it is characterized in that described planetary pinion (2) has 2 covers at least.

3. coaxial increasing automatically with quick-action touch overload as claimed in claim 1 turned round variable-speed motor, it is characterized in that, described touch device is made up of work in coordination spring (10) and bayonet lock (9) of two covers that are assemblied in planet carrier (8) and driving wheel (5) connecting part; Rely on bayonet lock (9) planet carrier (8) and driving wheel (5) to be combined with the frictional force of driving wheel (5).