CN103317965A

CN103317965A - Power-driven trundle

Info

Publication number: CN103317965A
Application number: CN2013102192980A
Authority: CN
Inventors: 叶林森
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-06-04
Filing date: 2013-06-04
Publication date: 2013-09-25

Abstract

A power-driven trundle is provided with a wheel frame and idler wheels, wherein a motor and a transmission shaft are assembled on the wheel frame, a rotating shaft of the motor is connected with a worm, a worm gear and a driving gear are installed on the transmission shaft, the worm is matched with the worm gear, a wheel shaft is fixed on the wheel frame, the idler wheels are arranged on the wheel shaft, a driven gear is installed on the wheel shaft and connected with the idler wheels, and the driven gear is meshed with the driving gear. The motor is started and the idler wheels can rotate through the worm, the worm gear, the driving gear and the driven gear. The power-driven trundle is installed at the bottom end of a carrying platform, can move the carrying platform manually or remotely, and is reasonable and compact in structure and wide in application range.

Description

Electronic castor

Technical field

The present invention relates to a kind of castor that is installed in the object lower end, specifically a kind of electronic castor.

Background technology

At present, can't rotate in the time spent self of doing without external force for the castor that is installed in the object lower end.After existing castor is installed in the lower end of object, need castor is rotated, and then realize the movement of object by external force traction or promotion object.This situation of existing castor is restricted its range of use.

Summary of the invention

The object of the present invention is to provide a kind of electronic castor, this castor self has power, and under manual control, the roller that it has can rotate.

For achieving the above object, the present invention adopts following scheme: electronic castor, have wheel carrier and roller, and motor and transmission shaft are housed on the wheel carrier, the rotating shaft of motor connects with a worm screw, worm gear and driving gear are housed on the transmission shaft, and worm and wheel cooperates, and is fixed with a wheel shaft at wheel carrier, roller is loaded on the wheel shaft, one driven gear is housed on the wheel shaft, and driven gear is connected with roller, driven gear and driving gear engagement.

By such scheme as seen, starter motor by worm gear, worm screw, driving gear, driven gear, can make roller rotate.This electronic castor is installed in the bottom of load carrying platform, can realizes the movement of manual control or remote control load carrying platform.

The present invention is rational in infrastructure, compact, applied range.

Description of drawings

The structural representation of Fig. 1 one embodiment of the invention;

The A-A cutaway view of Fig. 2 Fig. 1.

The specific embodiment

Further specify the present invention below in conjunction with embodiment and accompanying drawing.

Referring to Fig. 1, Fig. 2

Electric foot wheel provided by the invention has wheel carrier 1 and roller 7, motor 2 and transmission shaft 6 are housed on the wheel carrier 1, and the rotating shaft of motor 2 connects with a worm screw 3, and worm gear 4 and driving gear 5 are housed on the

transmission shaft

6,6 of worm gear 4 and driving gear 5 and transmission shafts connect by key 17, and worm screw 3 cooperates with worm gear 4.Be fixed with a wheel shaft 10 at wheel carrier 1, roller 7 is loaded on the wheel shaft 10, and a driven gear 8 is housed on the wheel shaft 10, and driven gear 8 is connected with roller 7, driven gear 8 and driving gear 5 engagements.In the present embodiment, driven

gear

8 and 7 is connected as a single entity, and also can make driven gear 8, roller 7 independent separately, and the connection structure by routine connects between the two.

For so that the more compact structure of this electronic castor, in the present embodiment, wheel carrier 1 be about the casing of open at both ends, motor 2, transmission shaft 6 and wheel shaft 10 all are in the inside of wheel carrier 1, roller 7 exposes from the lower port of wheel carrier 1.

The mounting means of transmission shaft 6 on wheel carrier 1 is in the present embodiment: a clutch shaft bearing 14 is equipped with respectively at the two ends of transmission shaft 6, two clutch shaft bearings 14 are loaded on respectively among the first through hole 1a that wheel carrier 1 both sides have, be connected with respectively a bearing carge 13 in the both sides of wheel carrier 1, bearing carge 13 covers clutch shaft bearing 14.

In addition, in the present embodiment, wheel shaft 10 is hollow shaft, the two ends of wheel shaft 10 are loaded on respectively among the second through hole 1b that wheel carrier 1 both sides have, the two ends of wheel shaft 10 back-up ring 12 that reclined has respectively passed bolt 11 in wheel shaft 10 and two back-up rings 12, and bolt 11 first line of a couplet are connected to nut 15.In addition, at driven

gear

8 and 10 on wheel shaft the second bearing 9 is housed, at

roller

7 and 10 on wheel shaft the 3rd bearing 16 is housed.

By Fig. 1, Fig. 2 as seen, starter motor 2, motor 2 drives worm screw 3 transmission worm gears 4, and worm gear 4 drives transmission shaft 6 and driving gear 5 rotates, and again by driving gear 5 transfer driven gears 8, roller 7 is rotated.

Claims

1. electronic castor, have wheel carrier and roller, it is characterized in that: motor and transmission shaft are housed on the wheel carrier, and the rotating shaft of motor connects with a worm screw, and worm gear and driving gear are housed on the transmission shaft, worm and wheel cooperates, be fixed with a wheel shaft at wheel carrier, roller is loaded on the wheel shaft, and a driven gear is housed on the wheel shaft, driven gear is connected with roller, driven gear and driving gear engagement.

2. electronic castor according to claim 1 is characterized in that: wheel carrier is the casing of open at both ends up and down, and motor, transmission shaft and wheel shaft all are in the inside of wheel carrier, and roller exposes from the lower port of wheel carrier.

3. electronic castor according to claim 2, it is characterized in that: a clutch shaft bearing is equipped with respectively at the two ends of transmission shaft, two clutch shaft bearings are loaded on respectively in the first through hole that the wheel carrier both sides have, and are connected with respectively a bearing carge in the both sides of wheel carrier, and bearing carge covers clutch shaft bearing.

4. electronic castor according to claim 2, it is characterized in that: wheel shaft is hollow shaft, and the two ends of wheel shaft are loaded on respectively in the second through hole that the wheel carrier both sides have, the two ends of the wheel shaft back-up ring that reclined respectively, passed bolt in wheel shaft and two back-up rings, the bolt first line of a couplet is connected to nut.