CN215984961U

CN215984961U - Contactless small micromotor torque test equipment

Info

Publication number: CN215984961U
Application number: CN202122501259.2U
Authority: CN
Inventors: 张泽宇; 黄君杰; 张大宝; 刘念; 逯明明; 王海宇; 李泽恒
Original assignee: Zhejiang Quantum Medical Devices Co Ltd
Current assignee: Zhejiang Quantum Medical Devices Co Ltd
Priority date: 2021-10-18
Filing date: 2021-10-18
Publication date: 2022-03-08
Anticipated expiration: 2031-10-18

Abstract

The utility model relates to the technical field of motor test equipment, and particularly discloses a non-contact small micromotor torque test equipment which comprises a support, a power output disc, a magnetic disc, an S-shaped tension sensor and a control system, wherein a fixed seat is arranged above the support, a moving platform is arranged above the fixed seat, the moving platform is connected with the fixed seat through a linear transmission mechanism, a motor protection cover to be tested is arranged on the moving platform, a motor to be tested is arranged in the motor protection cover to be tested, the power output disc is arranged on the motor to be tested, the magnetic disc and the power output disc are arranged oppositely, the magnetic disc is arranged through a magnetic disc mounting seat, a hanging frame is arranged on the magnetic disc mounting seat, the S-shaped tension sensor is fixed at the top end of the hanging frame and is positioned above the magnetic disc, and the control system respectively controls the S-shaped tension sensor and the linear transmission mechanism. The utility model absorbs power by the principle of magnetic eddy current loss, tests the torque of the motor, does not need to be contacted in the test process, and has high test precision, small loss and no loss of the motor to be tested.

Description

Contactless small micromotor torque test equipment

Technical Field

The utility model belongs to the field of power machinery test equipment, and particularly relates to a non-contact small micromotor torque test device.

Background

Conventional torque testing equipment on the market is generally in a contact type, the problems of large loss and large data error exist, and partially because of cost reasons, a high-end bearing is not used, so that the transmission coefficient is too high, the intermediate loss is large, and the measured data is inaccurate and unstable.

The non-contact general eddy current dynamometer generates reverse braking torque by changing the eddy current induced by the magnetic field, and applies the braking torque to the output shaft of the test power machine to measure the power of the power machine.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a non-contact small micromotor torque test device which absorbs power through the principle of magnetic eddy current loss to test the motor torque, has no contact in the test process, and is high in test precision, low in loss and free of loss of a motor to be tested.

In order to solve the technical problem, the utility model provides a non-contact small micromotor torque testing device which comprises a bracket, a power output disc, a magnetic disc, an S-shaped tension sensor and a control system, a fixed seat is arranged above the bracket, a motion platform is arranged above the fixed seat, the motion platform is connected with the fixed seat through a linear transmission mechanism, a motor protection cover to be tested is arranged on the motion platform, a motor to be tested is arranged in the motor protection cover to be tested, the power output disc is arranged on the motor to be tested, the magnetic disc is arranged opposite to the power output disc, the magnetic disk is arranged on the fixed seat through a magnetic disk mounting seat, a hanging frame is arranged on the magnetic disk mounting seat, the S-shaped tension sensor is fixed at the top end of the hanging rack and located above the magnetic disk, and the control system controls the S-shaped tension sensor and the linear transmission mechanism respectively.

Further, linear drive mechanism includes slider, slide rail, lead screw and step motor, the slide rail sets up on the fixing base, the slider inlays to be established motion platform's bottom and with slide rail sliding connection, the lead screw is worn to establish the bottom and the one end of fixing base stretch out behind the fixing base with step motor connects, the cover is equipped with screw nut on the lead screw, screw nut with motion platform fixed connection, step motor sets up on the support.

Furthermore, an initial limit sensor and an end limit sensor are respectively arranged on the fixed seat, and the initial limit sensor and the end limit sensor limit the movement range of the movement platform.

Further, the power output dish through middle connecting axle with the motor that awaits measuring is connected, the material of power output dish is aluminium, the material of middle connecting axle is stainless steel.

Further, the fixing seat is provided with a mounting plate, the disk mounting seat is fixed on the mounting plate, and the hanging rack is arranged on one side of the disk mounting seat.

Further, the diameter of the magnetic disk is larger than the diameter of the power output disk.

Furthermore, a neodymium magnet permanent magnet is embedded on the magnetic disk.

The utility model has the beneficial effects that:

1. the utility model absorbs power by using the principle of magnetic eddy current loss, has good linear relation between the output torque and the exciting current, has the advantages of high response speed, simple structure and the like, is convenient to operate and can be accurately controlled.

2. The magnetic coil is replaced by the permanent magnet embedded with the neodymium magnet on the magnetic disk, so that the braking force is stable and durable, the copper resource is saved, and the consumption is low.

3. The rotating speed of the stepping motor can be stably adjusted at a high speed through a PI intelligent algorithm, so that the positions of the power output disc and the magnetic disc are adjusted to perform testing.

4. The safe distance between the magnetic disk and the power output disk is ensured by the arrangement of the initial sensor and the end point sensor.

Drawings

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

FIG. 1 is a side view of a contactless small micro-motor torque testing apparatus of the present invention;

FIG. 2 is a top view of the contactless small micro-motor torque testing apparatus of the present invention;

FIG. 3 is a partial enlarged view of portion A of the present invention;

in the figure: the device comprises a support 1, a power output disc 2, a magnetic disc 3, a tension sensor 4S, a fixed seat 5, a moving platform 6, a motor protection cover 7, a motor to be tested 8, a motor to be tested 9, a mounting plate 10, a magnetic disc mounting seat 11, an intermediate connecting shaft 12, a hanging frame 13, a sliding block 14, a sliding rail 15, a lead screw 16, a stepping motor 17, a lead screw nut 17, an initial limit sensor 18 and an end limit sensor 19.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the specification of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In a specific embodiment of the utility model, as shown in fig. 1-3, a contactless small micromotor torque test device comprises a support 1, a power output disc 2, a magnetic disc 3, an S-shaped tension sensor 4 and a control system, wherein a fixed seat 5 is arranged above the support 1, a moving platform 6 is arranged above the fixed seat 5, the moving platform 6 is connected with the fixed seat 5 through a linear transmission mechanism, a motor protection cover 7 to be tested is arranged on the moving platform 6, a motor 8 to be tested is arranged in the motor protection cover 7 to be tested, the power output disc 2 is arranged on the motor 8 to be tested, the power output disc 2 is connected with the motor 8 to be tested through an intermediate connecting shaft 11, the power output disc 2 is made of aluminum, and the intermediate connecting shaft 11 is made of stainless steel; the magnetic disk 3 is arranged opposite to the power output disk 2, the diameter of the magnetic disk 3 is larger than that of the power output disk 2, neodymium magnet permanent magnets are embedded on the magnetic disk 3, the magnetic disk 3 is installed on a fixed seat 5 through a magnetic disk installation seat 10, an initial limit sensor 18 and an end limit sensor 19 are respectively arranged on the fixed seat 5, and the initial limit sensor 18 and the end limit sensor 19 limit the movement range of the movement platform 6; the magnetic disk mounting seat 10 is provided with a hanging rack 12, the fixing seat 5 is provided with a mounting plate 9, the magnetic disk mounting seat 10 is fixed on the mounting plate 9, the hanging rack 12 is arranged on one side of the magnetic disk mounting seat 10, the S-shaped tension sensor 4 is fixed on the top end of the hanging rack 12 and located above the magnetic disk 3, and the control system controls the S-shaped tension sensor 4 and the linear transmission mechanism respectively.

Linear drive mechanism includes slider 13, slide rail 14, lead screw 15 and step motor 16, slide rail 14 sets up on fixing base 5, slider 13 inlays to be established in the bottom of motion platform 6 and with 14 sliding connection of slide rail, lead screw 15 wears to establish and is connected with step motor 16 after fixing base 5 is stretched out to the bottom and the one end of fixing base 5, the cover is equipped with screw nut 17 on the lead screw 15, screw nut 17 and motion platform 6 fixed connection, step motor 16 sets up on support 1.

The control system mainly takes an MSP430F169 processor as a core, can stably adjust the rotating speed of the stepping motor 16 at a high speed by button input control and adopting a PI intelligent algorithm, further adjusts the positions of the power output disc 2 and the magnetic disc 3 for testing, and transmits torque data to the processor through the S-shaped tension sensor 5 and displays the torque data in real time after the torque data is processed by the processor. The initial limit sensor 18 moves the power output disc 2 to an initial position at the time of start-up, and the end limit sensor 19 serves to protect the magnetic disc 3 from the power output disc 2 by a safe distance after the start-up of the present invention.

The above disclosure is only one preferred embodiment of the present invention, and certainly should not be construed as limiting the scope of the utility model, which is defined by the claims and their equivalents.

Claims

1. The non-contact small micromotor torque test device is characterized by comprising a support (1), a power output disc (2), a magnetic disc (3), an S-shaped tension sensor (4) and a control system, wherein a fixed seat (5) is arranged above the support (1), a motion platform (6) is arranged above the fixed seat (5), the motion platform (6) is connected with the fixed seat (5) through a linear transmission mechanism, a motor protection cover (7) to be tested is arranged on the motion platform (6), a motor (8) to be tested is arranged in the motor protection cover (7) to be tested, the power output disc (2) is arranged on the motor (8) to be tested, the magnetic disc (3) is arranged opposite to the power output disc (2), and the magnetic disc (3) is arranged on the fixed seat (5) through a magnetic disc mounting seat (10), the magnetic disk mounting seat (10) is provided with a hanging rack (12), the S-shaped tension sensor (4) is fixed to the top end of the hanging rack (12) and located above the magnetic disk (3), and the control system controls the S-shaped tension sensor (4) and the linear transmission mechanism respectively.

2. The non-contact small micromotor torque testing device according to claim 1, wherein the linear transmission mechanism comprises a sliding block (13), a sliding rail (14), a lead screw (15) and a stepping motor (16), the sliding rail (14) is arranged on the fixed seat (5), the sliding block (13) is embedded in the bottom of the moving platform (6) and is in sliding connection with the sliding rail (14), the lead screw (15) penetrates through the bottom of the fixed seat (5) and one end of the lead screw extends out of the fixed seat (5) and is connected with the stepping motor (16), a lead screw nut (17) is sleeved on the lead screw (15), the lead screw nut (17) is fixedly connected with the moving platform (6), and the stepping motor (16) is arranged on the support (1).

3. The contactless small micromotor torque testing device according to claim 1, characterized in that an initial limit sensor (18) and an end limit sensor (19) are respectively arranged on the fixed base (5), and the initial limit sensor (18) and the end limit sensor (19) limit the movement range of the moving platform (6).

4. The torque test equipment of the small micro-motor in a non-contact mode according to claim 1, wherein the power output disc (2) is connected with the motor (8) to be tested through an intermediate connecting shaft (11), the power output disc (2) is made of aluminum, and the intermediate connecting shaft (11) is made of stainless steel.

5. The torque testing device of the small micro-motor in a non-contact mode according to claim 1, wherein a mounting plate (9) is arranged on the fixed seat (5), the disk mounting seat (10) is fixed on the mounting plate (9), and the hanging rack (12) is arranged on one side of the disk mounting seat (10).

6. A small micro-motor torque test device without contact according to claim 1, characterized in that the diameter of the magnetic disk (3) is larger than the diameter of the power take-off disk (2).

7. A contactless small micromotor torque test device according to claim 1, characterized in that said disk (3) is embedded with neodymium permanent magnets.