CN214178117U

CN214178117U - Double-motor-driven walking roller

Info

Publication number: CN214178117U
Application number: CN202120027135.2U
Authority: CN
Inventors: 曹惠昌; 李敏; 刘永胜
Original assignee: Greenman Machinery Co
Current assignee: Greenman Machinery Co
Priority date: 2021-01-06
Filing date: 2021-01-06
Publication date: 2021-09-14
Anticipated expiration: 2031-01-06

Abstract

The utility model discloses a bi-motor drive's walking roller, including left roller and right roller, be equipped with the clearance between this left roller and this right roller, establish the back shaft in the central axis department of this left roller and right roller, the left external rotor electric machine that the left side cover of this back shaft is connected with this left roller admittedly, the right external rotor electric machine that the right side cover of this back shaft is connected with this right roller admittedly. The utility model discloses well left roller and right roller adopt the motor to directly drive the mode respectively to realize its synchronous walking and turn function through the controller.

Description

Double-motor-driven walking roller

Technical Field

The utility model belongs to lawn maintenance machinery especially indicates a bi-motor drive's walking roller.

Background

The traditional walking roller is characterized in that a walking roller shaft is driven by an engine or a motor through a chain or a belt, and a built-in differential device or a ratchet and pawl device is arranged inside the walking roller; an engine or a motor drives the walking roller shaft through an external differential device, and a built-in external rotor motor drives the walking roller through a built-in differential device or a ratchet pawl device. Due to the existence of the mechanical transmission mechanism and the differential device, the structure is complex, the noise is high, the transmission efficiency is not high, and the maintenance is complicated.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a two motor drive's walking roller that the structure is simpler, it is more convenient to maintain.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a bi-motor drive's walking roller, includes left roller and right roller, is equipped with the clearance between this left roller and this right roller, sets up the back shaft in the central axis department of this left roller and right roller, and the left outer rotor motor that the left side cover of this back shaft is connected with this left roller is solid, overlaps the right outer rotor motor that is connected with this right roller at the right side of this back shaft.

The left outer rotor motor and the right outer rotor motor are identical in structure and comprise an outer end cover, an inner end cover, a stator assembly and an outer rotor, a key groove is formed in a central through hole of the stator assembly and connected with a supporting shaft key, a first bearing is arranged between the stator assembly and the outer end cover and between the stator assembly and the inner end cover respectively, the outer rotor is fixedly connected with the outer end cover and the inner end cover, and an outer ring of the outer end cover is fixedly connected with an annular plate of the inner walls of the left roller and the right roller through bolts.

Two the annular plate corresponds the welding on left roller and right roller inner wall, weld on the inner face of annular plate with the nut of bolt spiro union, or tap the screw hole on this annular plate.

The left support piece and the right support piece which are identical in structure are respectively sleeved on the supporting shaft close to the gap between the left roller and the right roller, the left support piece and the right support piece comprise a left support plate, a right support plate and a bearing II, the left support plate and the right support plate are respectively welded on the inner walls of the left roller and the right roller, and the centers of the left support plate and the right support plate are respectively sleeved with the bearing II and are positioned close to the middle step of the supporting shaft.

And locking sleeves are respectively arranged on the supporting shafts on the outer sides of the left outer rotor motor and the right outer rotor motor, and two ends of each supporting shaft are provided with flat positions and are fixed on the rack through the flat positions.

The left outer rotor motor and the right outer rotor motor are controlled by the controller to synchronously and asynchronously rotate and rotate in different directions, so that the walking roller realizes the functions of straight walking, turning walking and pivot steering.

The utility model has the advantages that: the utility model discloses a left side roller and right roller adopt the motor to directly drive the mode respectively, through the electron differential, can realize the straight line walking of walking roller and function such as turn walking.

Drawings

In order to more clearly illustrate the embodiments of the present invention, the embodiments will be described below with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of the present invention.

Detailed Description

The following description is given by way of example only, and not by way of limitation, of the scope of the invention.

As shown in figure 1, the double-motor driven walking roller comprises a left roller 1 and a right roller 2, a gap is arranged between the left roller 1 and the right roller 2, a supporting shaft 3 is arranged at the central axis of the left roller 1 and the right roller 2, a left outer rotor motor 4 connected with the left roller 3 is fixedly sleeved on the left side of the supporting shaft 3, and a right outer rotor motor 5 connected with the right roller 2 is fixedly sleeved on the right side of the supporting shaft 3.

Specifically, the left outer rotor motor 4 and the right outer rotor motor 5 have the same structure, the left outer rotor motor 4 includes an outer end cover 41, an inner end 42 cover, a stator assembly 43 and an outer rotor 44, a central through hole of the stator assembly 43 is provided with a key groove to be connected with the support shaft 3 key 6, a first positioning sealing bearing is respectively located between the stator assembly 43 and the outer end cover 41 and between the stator assembly 43 and the inner end cover 42, the outer rotor 44 is fixedly connected with the outer end cover 41 and the inner end cover 42, and an outer ring of the outer end cover 41 is fixedly connected with the annular plate 11 fixedly connected with the inner wall of the left roller 1 through a bolt 7, so that a torque transmission effect can be achieved. And nuts 8 are welded on the inner wall of the annular plate 11, or screw holes are tapped on the annular plate 11, so that the outer rotor motor can be conveniently installed and fixed from the outer side.

Close to overlap respectively on the back shaft in the clearance department between left roller and the right roller and establish the same left support piece 9 of structure and right support piece 10, as the inside of roller supports, this left support piece 9 includes left support board and sealed bearing two, and this left support board welds on the inner wall of this left roller, and bearing and the middle step location of back shaft are established to its center cover, and the right side structure is the same.

And locking sleeves 11 are respectively arranged on the supporting shafts at the outer sides of the left outer rotor motor and the right outer rotor motor and are fixed on the frame by flat positions at two ends.

The utility model discloses a back shaft passes through the whole stator assembly of key-type connection, wholly keeps quiescent condition, during the circular telegram, drives corresponding roller through linking firmly the outer end cover of external rotor and rotates. The innermost side of the roller is welded with a support plate which is used as the inner support of the roller; the outer side is welded with the annular plate, and the annular plate is tapped or the inner surface is welded with the nut, so that the motor can be conveniently installed and fixed from the outer side.

The left outer rotor motor and the right outer rotor motor are controlled by the controller to synchronously and asynchronously rotate and rotate in different directions, so that the walking roller realizes the functions of straight walking, turning walking and pivot steering. The utility model discloses a realize the turn, replace mechanical differential mechanism by electronic controller.

When the machine is in straight line driving, the left roller and the right roller are simultaneously driven by respective motors at constant speed, the double rollers keep moving forward, and an operator controls the forward state of the machine through the auxiliary direction of the machine handrail.

When a left turn is needed, the left roller is powered off or decelerated and the right roller is kept unchanged or accelerated through the control of the machine handrail, so that the left turn of the machine is realized; when the right turn is needed, the right roller is powered off or decelerated and the left roller is kept unchanged or accelerated through the control of the machine handrail, so that the right turn is realized.

When the original place is needed to turn around, the two motors are powered off and driven by external force, or one motor rotates forwards and the other motor rotates backwards, so that the original place turning is realized.

Claims

1. The double-motor-driven walking roller is characterized by comprising a left roller and a right roller, a gap is formed between the left roller and the right roller, a supporting shaft is arranged at the central axis of the left roller and the central axis of the right roller, a left outer rotor motor connected with the left roller is fixedly sleeved on the left side of the supporting shaft, and a right outer rotor motor connected with the right roller is fixedly sleeved on the right side of the supporting shaft.

2. The dual-motor driven walking roller of claim 1, wherein the left outer rotor motor and the right outer rotor motor are identical in structure, and comprise an outer end cover, an inner end cover, a stator assembly and an outer rotor, a central through hole of the stator assembly is provided with a key slot and is in key connection with a support shaft, a first bearing is respectively arranged between the stator assembly and the outer end cover and between the stator assembly and the inner end cover, the outer rotor is fixedly connected with the outer end cover and the inner end cover, and an annular plate fixedly connected with the inner wall of the left roller and the inner wall of the right roller is connected with the outer ring of the outer end cover through a bolt.

3. The dual motor driven traveling roller of claim 2, wherein two ring plates are welded to inner walls of the left and right rollers, respectively, and nuts screwed to the bolts are welded to inner surfaces of the ring plates or screw holes are tapped to the ring plates.

4. The dual motor driven roller as claimed in claim 1, wherein the supporting shaft near the gap between the left and right rollers is sleeved with a left and right supporting members having the same structure, respectively, the left and right supporting members comprise a left and right supporting plates and a second bearing, the left and right supporting plates are welded to the inner walls of the left and right rollers, respectively, and the centers of the left and right supporting plates are sleeved with the second bearing and positioned by the middle step of the supporting shaft.

5. The dual-motor driven walking roller of claim 1, wherein the outer side supporting shafts of the left outer rotor motor and the right outer rotor motor are respectively provided with a locking sleeve, and the two ends of the supporting shaft are provided with flat positions and are fixed on the frame through the flat positions.

6. The dual-motor driven walking roller of claim 1, wherein the left outer rotor motor and the right outer rotor motor are controlled by the controller to rotate synchronously, asynchronously and in different directions, so that the walking roller can realize the functions of straight walking, turning walking and pivot steering.