CN216625491U

CN216625491U - Motor with rotating shaft rotating and axial telescopic double structures

Info

Publication number: CN216625491U
Application number: CN202123237922.9U
Authority: CN
Inventors: 沈孝; 王志斌; 冯涛
Original assignee: De Neng Electric Drive Technology Suzhou Co ltd
Current assignee: De Neng Electric Drive Technology Suzhou Co ltd
Priority date: 2021-12-22
Filing date: 2021-12-22
Publication date: 2022-05-27
Anticipated expiration: 2031-12-22

Abstract

The utility model provides a have rotatory and flexible double-structure's of axial of pivot motor concurrently, includes motor one, motor two, encoder one, encoder two, ball screw, pivot one and pivot two, pivot one sets up on motor one, pivot two sets up on motor two, encoder one is connected with pivot one, encoder two and pivot two are connected, ball screw's one end and two fixed connection in pivot to ball screw's the other end extends to in the motor one, ball screw is located a tip and a pivot threaded connection of motor one. The motor with the rotating shaft rotating and axial stretching dual structure has the advantages that the two motors only have rotating speed effects and do not have displacement effects, the two motors are controlled by using positions, position signals are fed back in real time in the operation process through respective encoders, the technical obstacle that only the rotating action of the conventional motor can be realized is broken, the motor structure can realize the rotating action and the stretching action, and the universality of the motor is effectively improved.

Description

Motor with rotating shaft rotating and axial telescopic double structures

Technical Field

The utility model belongs to the technical field of intelligent equipment drive control, and particularly relates to a motor with a rotating shaft rotating structure and an axial telescopic structure.

Background

At present, the known rotating motor and electric main shaft are all structured in such a way that a stator is fixed on the inner wall of a shell, a rotor is fixed on a rotor shaft, bearings are arranged at two ends of the rotor shaft, and the bearings are fixedly arranged on central holes of end covers at two sides of the stator and cannot freely move. With the increasing use requirements of motors, the demands on the motors capable of rotating and stretching are increasing.

However, the prior art that realizes the rotation and expansion of the motor mainly has the following problems:

1. when the motor or the electric spindle is used, only a rotating function is needed, and when an axial displacement function is needed, a guide rail must be added, and the whole motor or the electric spindle moves simultaneously, so that interference caused under the condition of small space is difficult to eliminate.

2. The existing telescopic rotating motor realizes the telescopic rotating function through the motor-driven telescopic rotating mechanism, and the upper end of the telescopic shaft drives the accessory to move, so that the quality of the accessory is relatively large, and the telescopic rotating motor can be greatly shaken in work as long as the telescopic rotating motor is not controlled well slightly.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: the utility model aims to provide a motor with a rotating shaft rotating and axial telescopic double structure, and solves the problem that the motor in the prior art is unstable in operation due to unreasonable structural design when the rotating and telescopic structures are simultaneously realized.

The technical scheme is as follows: the utility model provides a motor with a rotating shaft rotating and axial stretching dual structure, which comprises a motor I, a motor II, a coder I, a coder II, a ball screw, a rotating shaft I and a rotating shaft II, wherein the rotating shaft I is arranged on the motor I, the rotating shaft II is arranged on the motor II, the motor I and the motor II are in the same straight line, the rotating shaft I and the rotating shaft II are coaxially arranged, the coder I is arranged at the end part of the motor I, which is close to the motor II, and is connected with the rotating shaft I, the coder II is arranged at the end part of the motor II, which is close to the motor I, and is connected with the rotating shaft II, one end of the ball screw is fixedly connected with the rotating shaft II, the other end of the ball screw extends into the motor I, and the end part of the ball screw, which is positioned in the motor I, is in threaded connection with the rotating shaft I. The motor has the rotating shaft rotating and axial telescopic double structures, the two motors only have rotating speed effect and no displacement effect, the two motors are controlled by using positions, position signals are fed back in real time in the running process through respective encoders, the technical obstacle that the conventional motor can only realize rotating action is broken, the motor structure can realize rotating action and telescopic action, and the universality of the motor is effectively improved.

Further, in the motor having the dual structure of rotating the rotating shaft and extending and retracting in the axial direction, the thread direction of the ball screw is opposite to the rotating direction of the first motor.

Further, foretell have the rotatory and flexible dual structure's of axial motor concurrently, the one end that motor one was kept away from to pivot two is equipped with the connecting sleeve, be equipped with a set of locking screw on the connecting sleeve, the tip that motor one was kept away from to the connecting sleeve is equipped with boss one, the tip and the boss one of pivot two contact to pivot two and boss one are through a set of locking screw connection.

Furthermore, the motor with the rotating shaft and the axial telescopic structure is characterized in that one end of the ball screw is arranged on the connecting sleeve.

Furthermore, the motor with the rotating shaft and the axial telescopic double structure is characterized in that a first through hole is formed in the position of the central axis of the first rotating shaft, a second through hole is formed in the position of the central axis of the second rotating shaft, and the ball screw penetrates through the first through hole and the second through hole.

Further, foretell have the rotatory and flexible dual structure's of axial motor of pivot concurrently, be equipped with spacing boss one on ball screw's the outer wall, be equipped with spacing step two on the inner wall of through-hole one.

Further, foretell have the rotatory and flexible dual architecture's of axial motor concurrently, motor one includes a motor shell body, front end housing, rear end housing, motor rotor subassembly and motor stator subassembly, front end housing and rear end housing set up the both ends at a motor shell body axis direction respectively, motor rotor subassembly and motor stator subassembly set up in a motor shell body to motor rotor subassembly and pivot one are connected.

Further, foretell have the rotatory and flexible double construction's of axial of pivot motor concurrently, the motor includes two shells of motor, two rotor subassemblies of motor and two stator subassemblies of motor, two shells of motor and rear end cap are connected, two rotor subassemblies of motor and two stator subassemblies of motor set up in two shells of motor to two rotor subassemblies of motor and two connections of pivot.

Furthermore, the motor with the rotating shaft rotating and axial stretching dual structure is characterized in that a first bearing is arranged between the first rotating shaft and the front end cover, and a second bearing is arranged between the first rotating shaft and the rear end cover.

The technical scheme shows that the utility model has the following beneficial effects: according to the motor with the rotating shaft and axial telescopic double structures, the hollow structure is arranged in the rotating shaft I of the motor I, threads are arranged in the hollow structure, the screw part of the ball screw is connected with the rotating shaft I and can move axially in the hollow structure, when the required axial elongation of a working place of the motor is changed, the telescopic function of the ball screw can be flexibly adjusted only through the motor II, the matching effect can be achieved, and the universality of the motor under various working conditions is enhanced.

Drawings

Fig. 1 is a schematic structural diagram of a motor having a dual structure of rotating shaft rotation and axial expansion.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Examples

The motor with the rotating shaft and the axial telescopic double structure as shown in figure 1 comprises a motor I1, a motor II 2, an encoder I3, an encoder II 4, a ball screw 5, a rotating shaft I6 and a rotating shaft II 7, the first rotating shaft 6 is arranged on the first motor 1, the second rotating shaft 7 is arranged on the second motor 2, the first motor 1 and the second motor 2 are positioned on the same straight line, the first rotating shaft 6 and the second rotating shaft 7 are coaxially arranged, the first encoder 3 is arranged at the end part of the first motor 1 close to the second motor 2, and the first encoder 3 is connected with the first rotating shaft 6, the second encoder 4 is arranged at the end part of the second motor 2 close to the first motor 1, the second encoder 4 is connected with the second rotating shaft 7, one end of the ball screw 5 is fixedly connected with the second rotating shaft 7, and the other end of the ball screw 5 extends into the motor I1, and the end part of the ball screw 5, which is positioned in the motor I1, is in threaded connection with the rotating shaft I6.

Wherein, the thread direction of the ball screw 5 is opposite to the rotating direction of the motor I1 (see the arrow at A in figure 1 points to the position of the reverse thread on the ball screw 5).

In addition, a connecting sleeve 71 is arranged at one end, away from the motor I1, of the rotating shaft II 7, a group of locking screws 72 is arranged on the connecting sleeve 71, a boss I73 is arranged at the end, away from the motor I1, of the connecting sleeve 71, the end, away from the motor I1, of the rotating shaft II 7 is in contact with the boss I73, and the rotating shaft II 7 is connected with the boss I73 through the group of locking screws 72. One end of the ball screw 5 is provided on the connecting sleeve 71.

And thirdly, a first through hole 61 is formed in the position of the central axis of the first rotating shaft 6, a second through hole 74 is formed in the position of the central axis of the second rotating shaft 7, and the ball screw 5 penetrates through the first through hole 61 and the second through hole 74. The outer wall of the ball screw 5 is provided with a first limiting boss 51, and the inner wall of the first through hole 61 is provided with a second limiting step 62.

In addition, the motor 1 includes a motor outer housing 11, a front cover 12, a rear cover 13, a motor rotor assembly 14 and a motor stator assembly 15, the front cover 12 and the rear cover 13 are respectively disposed at both ends in the axial direction of the motor outer housing 11, the motor rotor assembly 14 and the motor stator assembly 15 are disposed in the motor outer housing 11, and the motor rotor assembly 14 and the rotating shaft 6 are connected. A first bearing 16 is arranged between the first rotating shaft 6 and the front end cover 12, and a second bearing 17 is arranged between the first rotating shaft 6 and the rear end cover 13. The second motor 2 comprises a second motor housing 21, a second motor rotor assembly 22 and a second motor stator assembly 23, the second motor housing 21 is connected with the rear end cover 13, the second motor rotor assembly 22 and the second motor stator assembly 23 are arranged in the second motor housing 21, and the second motor rotor assembly 22 is connected with the second rotating shaft 7.

The first motor 1 and the second motor 2 can also be directly connected through flanges, and are not limited to direct or flange connection, and other connection modes can also be adopted.

The utility model has the working principle of the motor with the rotating shaft rotating and axial telescopic double structures:

the first motor 1 controls the rotation direction of the whole motor, the second motor 2 controls the extension and contraction of a screw part of the ball screw 5, the first encoder 3 controls the first motor 1, and the second encoder 4 controls the second motor 2.

Two servo drivers are adopted for control, and a position control mode is adopted for the two motors, namely the motor I1 and the motor II 2. When the motor I1 rotates, the rotating angle and direction of the motor I1 must be consistent with the rotating angle and direction of the motor II 2, and thus the system is a rotating motor with common functions. If the accumulated rotation angle of the second motor 2 is more or less than that of the first motor 1, the accumulated positive and negative angle data and the thread distance of the screw rod are the front-back telescopic distance of the screw rod. Therefore, the accumulated position difference of the first motor 1 and the second motor 2 is equal to the distance for controlling the screw rod of the system to move back and forth, and the motor system which can rotate and stretch is realized.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that modifications can be made by those skilled in the art without departing from the principle of the present invention, and these modifications should also be construed as the protection scope of the present invention.

Claims

1. The utility model provides a have rotatory and the flexible double construction's of axial of pivot motor concurrently which characterized in that: the motor comprises a motor I1, a motor II 2, an encoder I (3), an encoder II (4), a ball screw (5), a rotating shaft I (6) and a rotating shaft II (7), wherein the rotating shaft I (6) is arranged on the motor I1, the rotating shaft II (7) is arranged on the motor II 2, the motor I1 and the motor II 2 are in the same straight line, the rotating shaft I (6) and the rotating shaft II (7) are coaxially arranged, the encoder I (3) is arranged on the end part, close to the motor II 2, of the motor I1, the encoder I (3) is connected with the rotating shaft I (6), the encoder II (4) is arranged on the end part, close to the motor I1, of the motor II 2, the encoder II (4) is connected with the rotating shaft II (7), one end of the ball screw (5) is fixedly connected with the rotating shaft II (7), and the other end of the ball screw (5) extends into the motor I1, and the end part of the ball screw (5) positioned in the motor I1 is in threaded connection with the rotating shaft I (6).

2. The motor with the dual structure of rotating shaft and axial expansion and contraction as claimed in claim 1, wherein: the thread direction of the ball screw (5) is opposite to the rotation direction of the motor I1.

3. The motor having the dual structure of rotating shaft and axial extension and contraction according to claim 1 or 2, wherein: one end of the second rotating shaft (7) far away from the first motor (1) is provided with a connecting sleeve (71), a group of locking screws (72) are arranged on the connecting sleeve (71), the end part of the second rotating shaft (7) far away from the first motor (1) is provided with a first boss (73), the end part of the second rotating shaft (7) is in contact with the first boss (73), and the second rotating shaft (7) is connected with the first boss (73) through the group of locking screws (72).

4. The motor with the dual structure of rotating shaft and axial expansion and contraction as claimed in claim 3, wherein: one end of the ball screw (5) is arranged on the connecting sleeve (71).

5. The motor with the dual structure of rotating shaft and axial expansion and contraction as claimed in claim 1, wherein: the central axis position of the first rotating shaft (6) is provided with a first through hole (61) which penetrates through the first rotating shaft, the central axis position of the second rotating shaft (7) is provided with a second through hole (74) which penetrates through the second rotating shaft, and the ball screw (5) penetrates through the first through hole (61) and the second through hole (74).

6. The motor with the dual structure of rotating shaft and axial expansion and contraction as claimed in claim 5, wherein: the outer wall of the ball screw (5) is provided with a first limiting boss (51), and the inner wall of the first through hole (61) is provided with a second limiting step (62).

7. The motor with the dual structure of rotating shaft and axial expansion and contraction as claimed in claim 1, wherein: the motor I1 comprises a motor I outer shell (11), a front end cover (12), a rear end cover (13), a motor rotor assembly (14) and a motor stator assembly (15), wherein the front end cover (12) and the rear end cover (13) are respectively arranged at two ends of the motor I outer shell (11) in the axis direction, the motor rotor assembly (14) and the motor stator assembly (15) are arranged in the motor I outer shell (11), and the motor rotor assembly (14) is connected with a first rotating shaft (6).

8. The motor with the dual structure of rotating shaft and axial expansion and contraction as claimed in claim 7, wherein: the second motor 2 comprises a second motor housing (21), a second motor rotor assembly (22) and a second motor stator assembly (23), the second motor housing (21) is connected with the rear end cover (13), the second motor rotor assembly (22) and the second motor stator assembly (23) are arranged in the second motor housing (21), and the second motor rotor assembly (22) is connected with the second rotating shaft (7).

9. The motor with the dual structure of rotating shaft and axial expansion and contraction as claimed in claim 7, wherein: a first bearing (16) is arranged between the first rotating shaft (6) and the front end cover (12), and a second bearing (17) is arranged between the first rotating shaft (6) and the rear end cover (13).