CN210093059U

CN210093059U - Encoder shift-out type hollow direct-drive motor

Info

Publication number: CN210093059U
Application number: CN201920723129.3U
Authority: CN
Inventors: 曹鲜红
Original assignee: Shenzhen Linglve CNC Equipment Co Ltd
Current assignee: Shenzhen Linglve CNC Equipment Co Ltd
Priority date: 2019-05-20
Filing date: 2019-05-20
Publication date: 2020-02-18
Anticipated expiration: 2029-05-20

Abstract

The utility model discloses a hollow direct-drive motor with a movable coder, which comprises a gland, a machine base, a stator, a rotor, a first support bearing, a driving wheel, a second support bearing, a coder, a bearing seat, a deep groove ball bearing, a driven wheel, a synchronous belt, a coil and a magnet, wherein one end of the rotor is arranged in the gland through the first support bearing, the other end of the rotor is arranged in the machine base through the second support bearing, the driving wheel is arranged at the tail end of the rotor, the gland is arranged on the machine base, the coil is wound on the stator, the stator is adhered in the machine base, the magnet is adhered on the rotor, the coder is arranged on the bearing seat, the driven wheel is arranged in the bearing seat through the deep groove ball bearing, the driven wheel is connected with the shaft of the coder, the driving wheel is meshed with the driven wheel through the synchronous belt, a conventional shaft-type, the cost performance is very high.

Description

Encoder shift-out type hollow direct-drive motor

Technical Field

The utility model relates to a motor, concretely relates to encoder formula cavity type directly drives motor that moves out.

Background

The direct-drive motor has the characteristics of large output torque, high precision and no maintenance, and is widely applied to automation equipment and industrial robots, and most of direct-drive motors are structurally designed by directly connecting the encoder with the rotor, so that the obtained motor has high precision. However, the hollow encoder is expensive, so the design cost is inevitably high, and in some occasions where the precision requirement is not very high, especially in the occasion of the combined structure of the servo motor and the reducer, the cost performance advantage is not provided.

Disclosure of Invention

The utility model aims to solve the technical problem that an encoder formula cavity type directly drives motor moves out adopts conventional play axle formula encoder, is connected to hollow rotor through the belt and has realized hollow structure on, and the price/performance ratio is very high.

The utility model discloses a realize through following technical scheme: the utility model provides an encoder formula of shifting out cavity type directly drives motor which characterized in that: the device comprises a gland, a machine base, a stator, a rotor, a first supporting bearing, a driving wheel, a second supporting bearing, a coder, a bearing seat, a deep groove ball bearing, a driven wheel, a synchronous belt, a coil and a magnet, wherein one end of the rotor is installed in the gland through the first supporting bearing, the other end of the rotor is installed in the machine base through the second supporting bearing, the driving wheel is installed at the tail end of the rotor, and the gland 1 is installed on the machine base; the coil winding is on the stator, and the stator is pasted in the frame, and magnet pastes the dress on the rotor, and the encoder is installed on the bearing frame, follows the driving wheel and passes through the hold-in range meshing with the driving wheel together in installing in the bearing frame through deep groove ball bearing, with the hub connection of encoder together.

In a preferable technical scheme, the number of the coils is 24, the coils form UVW three phases, a star connection mode is adopted, the number of the magnets is 20, and the magnets are alternately attached to the rotor in a magnetic mode to form a 24-slot 20-pole motor structure.

As the preferred technical scheme, the encoder and the driven wheel are both arranged on a bearing seat, the bearing seat is arranged in the machine base, and the tensioning of the synchronous belt is realized by adjusting the relative position of the bearing seat and the machine base.

As a preferred technical scheme, the rotor and the driving wheel are both hollow structures.

Preferably, the first support bearing and the second support bearing are deep groove ball bearings, or angular contact bearings or cross roller bearings.

As a preferable technical solution, the synchronous pulley has the same tooth profile and the same number of teeth as the driving pulley and the driven pulley, and when the rotor rotates at an angle, the shaft of the encoder also rotates at a corresponding angle, and the transmission relationship between the shaft and the shaft is 1 to 1.

The utility model has the advantages that: the utility model discloses a conventional play axle formula encoder has realized hollow structure on being connected to hollow rotor through the synchronous belt area, has that the precision is high, with low costs, cross the convenient characteristics of line.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a front sectional view of the utility model;

figure 2 is a top cross-sectional view of the utility model;

in the figure: 1. gland, 2, frame, 3, stator, 4, rotor, 5, first support bearing, 6, action wheel, 7, second support bearing, 8, encoder, 9, bearing frame, 10, deep groove ball bearing, 11, follow driving wheel, 12, hold-in range, 13, coil, 14, magnet.

Detailed Description

All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.

Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.

In the description of the present invention, it is to be understood that the terms "one end", "the other end", "the outside", "upper", "inside", "horizontal", "coaxial", "central", "end", "length", "outer end", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, in the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

The use of terms herein such as "upper," "above," "lower," "below," and the like in describing relative spatial positions is for the purpose of facilitating description to describe one element or feature's relationship to another element or feature as illustrated in the figures. The spatially relative positional terms may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In the present invention, unless otherwise explicitly specified or limited, the terms "set", "coupled", "connected", "penetrating", "plugging", and the like are to be understood in a broad sense, and may be, for example, fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

As shown in fig. 1 and 2, the utility model discloses by gland 1, frame 2, stator 3, rotor 4, first support bearing 5, action wheel 6, second support bearing 7, encoder 8, bearing frame 9, deep groove ball bearing 10, from driving wheel 11, hold-in range 12, coil 13, magnet 14 constitute, one end of rotor 4 is installed in gland 1 through first support bearing 5, the other end of rotor 4 is installed in frame 2 through second support bearing 7, the end of rotor 4 is installed action wheel 6, gland 1 is installed on frame 2; the coil 13 is wound on the stator 3, and the stator 3 is adhered in the base 1; the magnet 14 is attached to the rotor 4; the encoder 8 is arranged on a bearing seat 9, and a driven wheel 11 is arranged in the bearing seat 9 through a deep groove ball bearing 10 and connected with a shaft of the encoder 8; the driving pulley 6 and the driven pulley 11 are engaged together through a timing belt 12.

24 coils 13 form UVW three-phase, and they adopt star connection mode, and 20 magnets 14 are total, and the magnetism is attached on the rotor alternately, and they form 24 groove 20 pole motor structure.

The encoder 8 and the driven wheel 11 are both arranged on a bearing seat 9, the bearing seat 9 is arranged in the machine base 2, and the tensioning of the synchronous belt 12 can be realized by adjusting the relative position of the bearing seat 9 and the machine base 2.

The rotor 4 is a hollow structure, and the driving wheel 11 is also a hollow structure, so that air passing pipes or electric wires can be conveniently passed.

The first support bearing 5 and the second support bearing 7 are preferably deep groove ball bearings, and angular contact bearings or crossed roller bearings may also be adopted, and the purpose of the deep groove ball bearings is to reduce the cost.

More specifically, the driving pulley 6 and the driven pulley 11 are synchronous pulleys having the same tooth profile and the same number of teeth, so that when the rotor 4 rotates a certain angle, the shaft of the encoder 8 also rotates a certain angle, and the transmission relationship between the shafts is 1 to 1.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the creative work should be covered within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.

Claims

1. The utility model provides an encoder formula of shifting out cavity type directly drives motor which characterized in that: including the gland, the frame, the stator, the rotor, first support bearing, the action wheel, the second support bearing, the encoder, the bearing frame, deep groove ball bearing, from the driving wheel, the hold-in range, coil and magnet are constituteed, the one end of rotor is installed in the gland through first support bearing, the other end of rotor passes through the second support bearing and installs in the frame, the action wheel is installed to the end of rotor, the gland is installed on the frame, the coil winding is on the stator, the stator pastes in the frame, magnet pastes the dress on the rotor, the encoder is installed on the bearing frame, from the driving wheel through deep groove ball bearing install in the bearing frame, be in the same place with the hub connection of encoder, the action wheel passes through.

2. The encoder removal hollow direct drive motor of claim 1, wherein: the number of the coils is 24 in total, the UVW three-phase is formed, a star connection mode is adopted, the number of the magnets is 20, and the magnets are alternately attached to the rotor to form a 24-slot 20-pole motor structure.

3. The encoder removal hollow direct drive motor of claim 1, wherein: the encoder and the driven wheel are both arranged on a bearing seat, the bearing seat is arranged in the machine base, and the tensioning of the synchronous belt is realized by adjusting the relative position of the bearing seat and the machine base.

4. The encoder removal hollow direct drive motor of claim 1, wherein: the rotor and the driving wheel are both hollow structures.

5. The encoder removal hollow direct drive motor of claim 1, wherein: the first support bearing and the second support bearing adopt deep groove ball bearings, or adopt angular contact bearings or cross roller bearings.

6. The encoder removal hollow direct drive motor of claim 1, wherein: the synchronous belt wheel has the same tooth form and the same tooth number as the driving wheel and the driven wheel, when the rotor rotates, the shaft of the encoder also rotates correspondingly, and the transmission relation of 1 to 1 is formed between the shaft and the shaft.