CN216414109U

CN216414109U - Special motor for polarimeter

Info

Publication number: CN216414109U
Application number: CN202122453658.6U
Authority: CN
Inventors: 徐晓虎; 张忠宁
Original assignee: Weihai Taiheng Motor Co ltd
Current assignee: Weihai Taiheng Motor Co ltd
Priority date: 2021-10-12
Filing date: 2021-10-12
Publication date: 2022-04-29
Anticipated expiration: 2031-10-12

Abstract

The utility model relates to a motor, in particular to a motor special for a polarimeter, which comprises a shell, wherein a front end cover and a rear end cover are fixedly arranged at the front end and the rear end of the shell respectively, and the motor is characterized in that: the cavity of the shell is divided into a front cavity and a rear cavity by a partition plate, a front stator is fixedly arranged in the front cavity, a rotating shaft is rotatably arranged between the front end cover and the partition plate, and a front rotor is fixedly arranged on the rotating shaft; a rear stator is fixedly arranged in the rear cavity, an iron core is fixedly arranged in the rear cavity and in the middle of the rear end cover, and the iron core and the outer winding are arranged in a clearance and concentric mode; the rear end of the rotating shaft is fixedly provided with a copper cup, and the side wall of the copper cup is positioned in the gap between the inner winding and the outer winding; and a feedback signal wiring bar of 9 electrodes is fixedly arranged outside the shell and is connected with the front stator and the rear stator. Compared with the prior art, the utility model does not need an additional encoder and utilizes self feedback signals to form a closed loop. Simple structure and low failure rate.

Description

Special motor for polarimeter

Technical Field

The utility model relates to a motor, in particular to a motor special for a polarimeter.

Background

The closed-loop control of the traditional polarimeter motor needs an external encoder, the encoder is easily mismatched with the motor, and a control system is complex and expensive.

Disclosure of Invention

In order to overcome one of the defects of the existing polarimeter motor, the utility model provides a novel polarimeter special motor, which adopts the technical scheme that:

the utility model provides a special motor of polarimeter, includes the casing, and both ends set firmly front end housing and rear end cap, its characterized in that respectively around the casing: the cavity of the shell is divided into a front cavity and a rear cavity by a partition plate, a front stator is fixedly arranged in the front cavity, a rotating shaft is rotatably arranged between the front end cover and the partition plate, and a front rotor is fixedly arranged on the rotating shaft; a rear stator is fixedly arranged in the rear cavity, an iron core is fixedly arranged in the rear cavity and in the middle of the rear end cover, and the iron core and the outer winding are arranged in a clearance and concentric mode; the rear end of the rotating shaft is fixedly provided with a copper cup, and the side wall of the copper cup is positioned in the gap between the inner winding and the outer winding; and a feedback signal wiring bar of 9 electrodes is fixedly arranged outside the shell and is connected with the front stator and the rear stator.

Furthermore, the front end of the rotating shaft extends out of the front end cover to form a power output shaft.

Furthermore, the front end cover and the partition plate are embedded with outer rings of bearings, the inner rings of the bearings are sleeved on the rotating shaft, and the rear end of the rotating shaft is provided with a threaded hole; the front end of the copper cup extends forwards to form a sleeve, the front end of the sleeve is abutted to an inner ring of the bearing, and a screw penetrates through the gasket and the sleeve to be in threaded connection with a threaded hole in the rotating shaft.

Further, the feedback signal terminal block includes a ground terminal, 2 pairs of motor field voltage terminals, 2 pairs of motor control voltage terminals, 2 pairs of generator field voltage terminals, and 2 pairs of generator output voltage terminals.

Compared with the prior art, the utility model does not need an additional encoder and utilizes self feedback signals to form a closed loop. Simple structure and low failure rate.

Drawings

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

Fig. 2 is a sectional view of fig. 1.

Detailed Description

In the description of the present invention, it is to be understood that the terms "left", "right", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated. The terms "first", "second", etc. are used merely to distinguish different elements and should not be construed as limiting the utility model.

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; unless the movable connection is explicitly defined as a detachable connection. These connections are conventional in the art and those skilled in the art will understand the specific meaning of the above terms in the present invention according to the specific situation.

The motor special for the polarimeter comprises a shell 1, wherein a front end cover 2 and a rear end cover 3 are fixedly arranged at the front end and the rear end of the shell 1 respectively, a cavity of the shell 1 is divided into a front cavity and a rear cavity by a partition plate 4, a front stator 5 is fixedly arranged in the front cavity, a rotating shaft 7 is rotatably arranged between the front end cover and the partition plate 4, and a front rotor 8 is fixedly arranged on the rotating shaft 7; a rear stator 12 is fixedly arranged in the rear cavity, an iron core 9 is fixedly arranged in the rear cavity and in the middle of the rear end cover 3, and the iron core 9 and the outer winding are arranged in a clearance and concentric mode; the rear end of the rotating shaft 7 is fixedly provided with a copper cup 11, and the side wall of the copper cup 11 is positioned in the gap between the inner winding 10 and the outer winding; and a feedback signal wiring bar 6 with 9 electrodes is fixedly arranged outside the shell, and the feedback signal wiring bar 6 is connected with the front stator 5 and the rear stator 12. The front end of the rotating shaft 7 extends out of the front end cover 2 to form a power output shaft. The front end cover and the partition plate 4 are embedded with outer rings of bearings 13, the inner rings of the bearings 13 are sleeved on the rotating shaft 7, and the rear end of the rotating shaft 7 is provided with a threaded hole; the front end of the copper cup 11 extends forwards to form a sleeve, the front end of the sleeve abuts against the inner ring of the bearing 13, and the screw 14 penetrates through the washer 15 and the sleeve to be in threaded connection with the threaded hole in the rotating shaft 7. The feedback signal terminal block 6 includes a

ground terminal

61, 2 to a motor

field voltage terminal

62, 2 to a motor

control voltage terminal

63, 2 to a generator

field voltage terminal

64, 2 to a generator output voltage terminal 65.

When a voltage is input from 2 to the motor excitation voltage terminal 62, the motor rotates, 2 outputs a voltage to the generator output voltage terminal 65, and when the system receives the output voltage, the voltage is controlled and adjusted by 2 to the motor control voltage terminal 63, thereby controlling the rotation speed and forming a closed-loop control.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a special motor of polarimeter, includes casing (1), and both ends set firmly front end housing (2) and rear end cap (3) respectively around casing (1), its characterized in that: the cavity of the shell (1) is divided into a front cavity and a rear cavity by a partition plate (4), a front stator (5) is fixedly arranged in the front cavity, a rotating shaft (7) is rotatably arranged between the front end cover and the partition plate (4), and a front rotor (8) is fixedly arranged on the rotating shaft (7); a rear stator (12) is fixedly arranged in the rear cavity, an iron core (9) is fixedly arranged in the rear cavity and in the middle of the rear end cover (3), and the iron core (9) and the outer winding are arranged in a clearance and concentric mode; the rear end of the rotating shaft (7) is fixedly provided with a copper cup (11), and the side wall of the copper cup (11) is positioned in a gap between the inner winding (10) and the outer winding; and a feedback signal wiring bar (6) with 9 electrodes is fixedly arranged outside the shell, and the feedback signal wiring bar (6) is connected with the front stator (5) and the rear stator (12).

2. The special motor for the polarimeter according to claim 1, wherein: the front end of the rotating shaft (7) extends out of the front end cover (2) to form a power output shaft.

3. The special motor for the polarimeter according to claim 1, wherein: the front end cover and the partition plate (4) are embedded with the outer ring of the bearing (13), the inner ring of the bearing (13) is sleeved on the rotating shaft (7), and the rear end of the rotating shaft (7) is provided with a threaded hole; the front end of the copper cup (11) extends forwards to form a sleeve, the front end of the sleeve is abutted to an inner ring of the bearing (13), and a screw (14) penetrates through a gasket (15) and the sleeve to be in threaded connection with a threaded hole in the rotating shaft (7).

4. The special motor for the polarimeter according to claim 1, wherein: the feedback signal terminal block (6) includes a ground terminal (61), 2 pairs of motor field voltage terminals (62), 2 pairs of motor control voltage terminals (63), 2 pairs of generator field voltage terminals (64), and 2 pairs of generator output voltage terminals (65).