CN211508824U

CN211508824U - Mounting structure suitable for gear motor chassis

Info

Publication number: CN211508824U
Application number: CN201921595127.7U
Authority: CN
Inventors: 伍岳; 徐怀吉
Original assignee: Mutian Robot Hangzhou Co ltd
Current assignee: Mutian Robot Hangzhou Co ltd
Priority date: 2018-10-18
Filing date: 2019-09-24
Publication date: 2020-09-15
Anticipated expiration: 2029-09-24

Abstract

The utility model discloses an installation structure suitable for a chassis of a speed reduction motor, which comprises wheels, a rotating shaft, a motor, a chassis and a bearing seat arranged on the chassis, wherein a bearing is arranged in the bearing seat, and a bearing cover used for limiting the bearing is fixed on the inner end surface of the bearing seat; the wheel is fixedly connected with the rotating shaft, the rotating shaft is sleeved in the bearing and is fastened by a clamp spring through the shaft, and a central mounting hole is formed in the rotating shaft in the axial direction; the motor flange surface is provided with a motor mounting plate which avoids a motor shaft, the motor mounting plate is fixedly connected with the bearing seat through a plurality of mounting plate screws and a spring sleeved outside the mounting plate screws, and the motor shaft is inserted into a central mounting hole of the rotating shaft and is connected with the rotating shaft for transmission through a set screw at the other side of the bearing; and a plurality of stacked flat washers are arranged between the screw end of the mounting plate and the surface of the motor mounting plate.

Description

Mounting structure suitable for gear motor chassis

Technical Field

The utility model belongs to the technical field of the robot chassis technique and specifically relates to a mounting structure suitable for gear motor chassis.

Background

At present, a large-sized robot chassis generally adopts a speed reduction motor with an encoder to drive an omnidirectional wheel, and the required motions of advancing, rotating and the like of the chassis are realized by utilizing a driving and control program. The speed reducing motor generally has two modes of direct connection and coupling connection driving wheels, and the wheels are required to bear larger radial and axial forces when the robot encounters bump or heavy load in the moving process. On the ideal assembly process, the motor shaft extension and the wheel need to be installed coaxially to ensure the stable transmission of the speed reducing motor, and under the condition of poor assembly coaxiality, stress for maintaining the motor shaft extension and the wheel connecting piece on the same axis can be generated between the motor shaft extension and the wheel connecting piece in the movement process.

The direct connection speed reducing motor has the advantages that the installation is simple and convenient, the motor shaft extension is connected with the wheels without considering the coaxiality installation error, the installation is simple and convenient, the transmission efficiency is high, the speed reducing motor directly bears radial and axial loads, but the radial and axial bearing capacity of the speed reducing motor is weak, and the bearing capacity of a chassis is limited.

The coupler is connected with the speed reducing motor, so that the rotation stability is guaranteed, the rotating bearing at the output end of the coupler bears axial and radial loads, the bearing capacity of the chassis is improved, the required installation space is larger than that of a direct connection mode, and the installation is limited in a small space structure.

To this end, we have realized a new mounting structure.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a mounting structure suitable for gear motor chassis aims at synthesizing the advantage of directly alliing oneself with and coupling joint, compares the coupling joint omniwheel and has reduced chassis installation space, compares and directly allies oneself with the connection omniwheel and has promoted axial and radial bearing capacity.

In order to achieve the above object, the utility model provides a following technical scheme: a mounting structure suitable for a speed reduction motor chassis comprises wheels, a rotating shaft, a motor, a chassis and a bearing seat mounted on the chassis, wherein a bearing is mounted in the bearing seat, and a bearing cover used for limiting the bearing is fixed on the inner end surface of the bearing seat; the wheel is fixedly connected with the rotating shaft, the rotating shaft is sleeved in the bearing and is fastened by a clamp spring through the shaft, and a central mounting hole is formed in the rotating shaft in the axial direction; the motor flange surface is provided with a motor mounting plate which avoids a motor shaft, the motor mounting plate is fixedly connected with the bearing seat through a plurality of mounting plate screws and a spring sleeved outside the mounting plate screws, and the motor shaft is inserted into a central mounting hole of the rotating shaft and is connected with the rotating shaft for transmission through a set screw at the other side of the bearing; and a plurality of stacked flat washers are arranged between the screw end of the mounting plate and the surface of the motor mounting plate.

As a connection mode, the motor mounting plate passes through the bearing cover through mounting plate screws on four corners and then is fixedly connected with the bearing seat, and the spring sleeved outside the mounting plate screws is arranged between the motor mounting plate and the bearing cover.

In order to reduce the friction force between the flat washers and the motor mounting plate, between the flat washers and the screw end surface of the mounting plate, lubricating media are added on the surfaces of the flat washers, so that the movable adjustment of the flat washers is facilitated.

Preferably, the wheels are omni-wheels.

Preferably, the rotating shaft is a flange shaft, and the flange end of the flange shaft and the end face of the wheel are fixed through a wheel screw.

Preferably, the bearing cover is fixed with the bearing seat through a bearing cover screw and presses the bearing outer ring.

Preferably, the bearing seat is fixed below the chassis through a bearing seat screw.

Preferably, the motor flange surface fastens the motor mounting plate through a motor screw.

In order to reduce the occupied space, the chassis is provided with a notch for avoiding the wheels.

The utility model has the advantages that:

1. the motor shaft and the rotating shaft are in fastening connection transmission through the set screw, the fastening point is arranged on the other side of the bearing, and the rotating shaft connecting bearing is arranged in the bearing seat, so that the bearing seat bears the radial force and the axial force of the chassis load, the motor is not required to bear the load, and the chassis bearing capacity is improved;

2. the motor is combined with the motor mounting plate, the motor mounting plate is connected to the bearing seat through the mounting plate screw, the motor has a function of self-adjusting coaxiality in the operation process, a plurality of springs between the motor mounting plate and the bearing seat are connected through the mounting plate screw, the axial relative position of a motor shaft and a rotating shaft can be always maintained, meanwhile, the motor can be adjusted according to the elastic force of a certain spring, the axial position required by coaxiality with the rotating shaft can be maintained, a flat gasket added with a lubricating medium under the mounting plate screw can enable the motor to move along any radial direction in the operation process, the coaxiality of the motor and the rotating shaft can be adjusted, the motor can be always kept highly coaxial in the transmission process, the mounting plate screw and the bearing seat are fixed, the axial rotation of the motor mounting plate.

Drawings

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

Fig. 2 is a reverse perspective view of fig. 1 according to the present invention.

Detailed Description

In the case of the example 1, the following examples are given,

as shown in fig. 1 and 2, an installation structure suitable for a chassis of a speed reduction motor comprises wheels 2, a rotating shaft 3, a motor 14, a chassis 17 and a bearing seat 5 installed on the chassis 17, wherein a bearing 6 is installed in the bearing seat 5, and a bearing cover 8 for limiting the bearing 6 is fixed on an inner end surface of the bearing seat 5;

the wheel 2 is fixedly connected with the rotating shaft 3, the rotating shaft 3 is sleeved in the bearing 6 and is fastened by the clamp spring 7 through a shaft, and the rotating shaft 3 is axially provided with a central mounting hole;

a motor mounting plate 11 avoiding a motor shaft is arranged on the flange surface of the motor 14, the motor mounting plate 11 is fixedly connected with the bearing seat 5 through a plurality of mounting plate screws 13 and a spring 9 sleeved outside the mounting plate screws 13, and the motor shaft is inserted into a central mounting hole of the rotating shaft 3 and is connected with the rotating shaft 3 through a set screw 4 at the other side of the bearing 6 for transmission; and a plurality of stacked flat washers 12 are arranged between the end of the mounting plate screw 13 and the surface of the motor mounting plate 11.

Motor mounting panel 11 passes behind the bearing cap 8 through mounting panel screw 13 on four angles and bearing frame 5 fixed connection, and the spring 9 of cover outside mounting panel screw 13 is located between motor mounting panel 11 and the bearing cap 8. The surface of the flat gasket 12 is added with a lubricating medium. The wheels 2 are omni wheels. The rotating shaft 3 is a flange shaft, and the flange end of the flange shaft is fixed with the end surface of the wheel 2 through a wheel screw 1. The bearing cover 8 is fixed with the bearing seat 5 through a bearing cover screw 10 and presses the outer ring of the bearing 6. The bearing block 5 is fixed below a chassis 17 by a bearing block screw 16. The flange surface of the motor 14 is fastened on the motor mounting plate 11 through a motor screw 15. The chassis 17 is notched to avoid the wheels 2.

The utility model discloses a motor 14 is through making up with motor mounting panel 11, connects on bearing frame 5 after motor mounting panel 11 passes bearing cap 8 through mounting panel screw 13, and the motor shaft passes through holding screw 4 fastening connection transmission with pivot 3, and pivot 3 connecting bearing 6 arranges bearing frame 5 in, is equivalent to directly linking, compares the installation space who utilizes the shaft coupling compression.

Simultaneously, in order to improve the bearing capacity: the fastening point of the motor shaft and the rotating shaft 3 is arranged on the other side of the bearing 6, so that the bearing seat 5 bears the radial force and the axial force of the load of the chassis 17, the motor 14 does not need to bear the load, and the bearing capacity of the chassis 17 is improved; the motor 14 has the function of self-adjusting the coaxiality in the running process; namely, the springs 9 between the motor mounting plate 11 and the bearing cover 8 are connected through mounting plate screws 13, so that the axial relative position of the motor shaft connected with the rotating shaft 3 can be always maintained, and meanwhile, the motor 14 can be adjusted according to the elastic force of one spring 9 to maintain the axial position required by being coaxial with the rotating shaft 3;

the flat washer 12 added with the lubricating medium under the mounting plate screw 13 can enable the motor to move along any radial direction with low resistance in the operation process, and the coaxiality of the motor 14 and the rotating shaft 3 is adjusted, so that the motor is always kept highly coaxial in the transmission process, and the fixing of the mounting plate screw 13 and the bearing block 5 limits the axial rotation of the motor mounting plate 11 and the motor 14, so as to provide counter acting force for the rotation of the chassis 17.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the present invention.

Claims

1. The mounting structure suitable for the chassis of the speed reducing motor comprises wheels (2), a rotating shaft (3), a motor (14) and a chassis (17), and is characterized by further comprising a bearing seat (5) mounted on the chassis (17), wherein a bearing (6) is mounted in the bearing seat (5), and a bearing cover (8) used for limiting the bearing (6) is fixed on the inner end surface of the bearing seat (5); the wheel (2) is fixedly connected with the rotating shaft (3), the rotating shaft (3) is sleeved in the bearing (6) and is fastened by a clamp spring (7) through a shaft, and a central mounting hole is formed in the rotating shaft (3) in the axial direction; a motor mounting plate (11) avoiding a motor shaft is mounted on the flange surface of the motor (14), the motor mounting plate (11) is fixedly connected with the bearing seat (5) through a plurality of mounting plate screws (13) and springs (9) sleeved outside the mounting plate screws (13), and the motor shaft is inserted into a central mounting hole of the rotating shaft (3) and is connected with the rotating shaft (3) for transmission through a set screw (4) on the other side of the bearing (6); and a plurality of stacked flat washers (12) are arranged between the end of the mounting plate screw (13) and the surface of the motor mounting plate (11).

2. The mounting structure for the chassis of the speed reducing motor according to claim 1, wherein the motor mounting plate (11) is fixedly connected with the bearing seat (5) after penetrating through the bearing cover (8) through mounting plate screws (13) at four corners, and the spring (9) sleeved outside the mounting plate screws (13) is arranged between the motor mounting plate (11) and the bearing cover (8).

3. The mounting structure for a chassis of a speed reducing motor according to claim 1, wherein a lubricating medium is added to the surface of the flat washer (12).

4. A mounting structure for a chassis of a gearmotor according to claim 1, characterized in that said wheels (2) are omni-wheels.

5. The mounting structure for the chassis of the speed reducing motor is characterized in that the rotating shaft (3) is a flange shaft, and the flange end of the flange shaft is fixed with the end surface of the wheel (2) through a wheel screw (1).

6. The mounting structure for the chassis of the speed reducing motor according to claim 1, wherein the bearing cover (8) is fixed with the bearing seat (5) through a bearing cover screw (10) and presses the outer ring of the bearing (6).

7. The mounting structure for a chassis of a speed reduction motor according to claim 1, wherein the bearing seat (5) is fixed below the chassis (17) by a bearing seat screw (16).

8. The mounting structure for a chassis of a gear motor according to claim 1, wherein the flange surface of the motor (14) is fastened to the motor mounting plate (11) by motor screws (15).

9. The mounting structure for a chassis of a geared motor according to claim 1, wherein the chassis (17) is notched to avoid the wheels (2).