CN210664753U

CN210664753U - Motor vibration measuring device

Info

Publication number: CN210664753U
Application number: CN201921933663.3U
Authority: CN
Inventors: 林湛艺
Original assignee: Nidec Dongguan Co Ltd
Current assignee: Nidec Dongguan Co Ltd
Priority date: 2019-11-11
Filing date: 2019-11-11
Publication date: 2020-06-02
Anticipated expiration: 2029-11-11

Abstract

The utility model provides a motor vibration measuring device, which comprises a first pedestal, a second pedestal and a plurality of groups of first supporting units, wherein the first pedestal is provided with a motor mounting hole, and the first pedestal and the second pedestal are arranged in parallel from top to bottom and are supported by the first supporting units; the first support unit comprises a first cylinder, a second cylinder and an elastic piece for connecting the first cylinder and the second cylinder; an acceleration sensor is fixed on the first pedestal. The utility model discloses motor vibration survey device simple structure, reasonable, compact can realize safe, the accurate survey of motor vibration.

Description

Motor vibration measuring device

Technical Field

The utility model relates to a motor detection technology especially relates to a motor vibration survey device.

Background

Currently, motor vibration measurement uses a rope to suspend the motor, attach an acceleration sensor to the motor, start the motor, measure the vibration value, and remove the acceleration sensor and the motor after the measurement. The existing motor vibration measuring method has low operability and high working hour, and is only suitable for sampling inspection.

Further, patent publication JP2019-60633a discloses a vibration measurement device and a vibration measurement evaluation system. If the motor is liable to shake, the motor or the motor fixing member may fall off the vibration measuring apparatus without stopping the vibration, and the operator may not be able to perform a safe measurement.

In view of the above, a safe and accurate motor vibration measuring apparatus is needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a motor vibration survey device to the not good enough problem of present motor vibration measurement security and accuracy, this vibration survey device can realize motor vibration safety, accurate survey.

In order to achieve the above object, the utility model adopts the following technical scheme: a motor vibration measuring device comprises a first pedestal, a second pedestal and a plurality of groups of first supporting units, wherein a motor mounting hole is formed in the first pedestal, and the first pedestal and the second pedestal are arranged in parallel from top to bottom and are supported by the first supporting units; the first support unit comprises a first cylinder, a second cylinder and an elastic piece for connecting the first cylinder and the second cylinder; an acceleration sensor is fixed on the first pedestal.

Furthermore, the first supporting units are 3 groups or 4 groups, are uniformly distributed between the first pedestal and the second pedestal and do not interfere with the motor to be measured. If the supporting units are one or two, there is a possibility that the motor will fall off when the motor vibrates three-dimensionally.

Further, the motor vibration measuring apparatus further includes a third pedestal provided on a side of the second pedestal facing away from the first pedestal, the third pedestal being parallel to the second pedestal and supported by the second support unit, and a plurality of sets of second support units. And the multiple groups of second supporting units are uniformly distributed between the third pedestal and the second pedestal. The setting of second supporting element can avoid or reduce other vibrations and upload from the bottom, and then improves and detect the precision.

Further, the second supporting units are 3 groups or 4 groups.

Further, the second supporting unit includes, but is not limited to, a spring.

Further, the acceleration sensor is disposed near the motor mounting hole of the first pedestal.

Further, the acceleration sensor is a 1-axis acceleration sensor.

Further, the acceleration sensor is two 1-axis acceleration sensors respectively fixed on the side surface and/or the lower surface of the first pedestal.

Further, the first cylinder outer diameter is smaller than the second cylinder outer diameter.

Furthermore, the elastic piece is frustum-shaped, the small-diameter end is arranged close to the first cylinder side, and the large-diameter end is arranged close to the second cylinder side.

Further, the elastic member is an elastic material, including but not limited to a gel member or a rubber member.

Further, a baffle is arranged on one side of the motor vibration measuring device to avoid external interference. The baffle is provided with a plurality of through holes.

The utility model relates to a motor vibration measuring device compares with prior art and has following advantage:

1) the utility model discloses the support element who is connected with the first pedestal that is fixed with the motor is a plurality of, and every support element all is provided with the elastic component, even the motor violently vibrates at vertical direction and horizontal direction like this, all can not drop from motor vibration survey device, can guarantee the security of vibration survey.

2) The setting of second supporting element can avoid or reduce other vibrations and upload from the bottom, and then improves and detect the precision.

3) The utility model discloses the acceleration sensor that motor vibration survey device adopted is 1 axle acceleration sensor. Compared with a 2-axis or 3-axis acceleration sensor, the 1-axis acceleration sensor has lower price and can effectively reduce the production cost of the motor vibration measuring device.

Drawings

FIG. 1 is a perspective view of a motor vibration measuring apparatus;

FIG. 2 is a front view of the motor vibration measuring apparatus;

FIG. 3 is a plan view of the motor vibration measuring apparatus;

FIG. 4 is a right side view of the motor vibration measuring apparatus.

Detailed Description

The invention is further illustrated below with reference to the following examples:

example 1

This embodiment discloses a motor vibration measuring apparatus having a structure as shown in fig. 1 to 4, including a first base 1, a second base 2, a third base 8, four sets of first support units, and four sets of second support units 9. First pedestal 1, second pedestal 2, third pedestal 8 are the rectangle mesa, and three's area top-down increases in proper order to better assurance motor vibration survey device's stability.

First pedestal 1,

second pedestal

2 and 8 top-down parallel arrangement of third pedestal, first pedestal 1 and second pedestal 2 are supported by the first supporting element of four groups of equipartition, will avoid interfering mutually with the motor that awaits measuring when setting up first supporting element, hinder the testing result. The second pedestal 2 and the third pedestal 8 are supported by four sets of uniformly distributed second support units 9. The security of vibration survey can be guaranteed in the setting of first supporting element in this embodiment, and other vibrations can be avoided or reduced to other supporting elements's setting and other vibrations are uploaded from the bottom, and then improve and detect the precision.

The first supporting unit comprises a first cylinder 4, a second cylinder 5 and an elastic part 6 for connecting the first cylinder and the second cylinder; the outer diameter of the first cylinder 4 is smaller than that of the second cylinder 5. The elastic piece 6 is frustum-shaped, the small diameter end is arranged close to the first cylinder side, and the large diameter end is arranged close to the second cylinder side. The elastic member 6 is a rubber member. The second support unit 9 is a spring.

The first pedestal is provided with a motor mounting hole 3, and the acceleration sensor 7 is provided near the motor mounting hole 3. Specifically, the acceleration sensors in this embodiment are two 1-axis acceleration sensors, which are fixed to the side surface and the lower surface of the first pedestal 1, respectively.

A baffle 10 is further provided at one side of the motor vibration measuring apparatus to avoid external interference. The width of the baffle is matched with that of the third pedestal 8, and the height of the baffle is higher than that of the motor to be measured; the baffle is also provided with a plurality of through holes.

Example 2

The embodiment discloses a motor vibration measuring device, which comprises a first pedestal, a second pedestal and 3 groups of first supporting units, wherein a motor mounting hole is formed in the first pedestal, the first pedestal and the second pedestal are arranged in parallel from top to bottom and are supported by the 3 groups of first supporting units, and the first supporting units do not interfere with a motor to be measured; the first support unit comprises a first cylinder, a second cylinder and an elastic piece for connecting the first cylinder and the second cylinder; be fixed with acceleration sensor on the first pedestal, acceleration sensor is two 1 axle acceleration sensor, fixes respectively at first pedestal side and lower surface.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. A motor vibration measuring device is characterized by comprising a first pedestal, a second pedestal and a plurality of groups of first supporting units, wherein a motor mounting hole is formed in the first pedestal, and the first pedestal and the second pedestal are arranged in parallel from top to bottom and are supported by the first supporting units; the first support unit comprises a first cylinder, a second cylinder and an elastic piece for connecting the first cylinder and the second cylinder; an acceleration sensor is fixed on the first pedestal.

2. The motor vibration measuring apparatus according to claim 1, wherein the first supporting units are 3 or 4 groups, and are uniformly arranged between the first base and the second base without interfering with the motor to be measured.

3. The motor vibration measuring apparatus according to claim 1, further comprising a third pedestal provided on a side of the second pedestal facing away from the first pedestal, and a plurality of sets of second support units, the third pedestal being parallel to the second pedestal and supported by the second support units.

4. The motor vibration measuring apparatus according to claim 3, wherein the second supporting unit is 3 groups or 4 groups.

5. The motor vibration measuring apparatus according to claim 3 or 4, wherein the second supporting unit is a spring.

6. The motor vibration measuring apparatus according to claim 1, wherein the acceleration sensor is provided near a motor mounting hole provided in the first base.

7. The motor vibration measuring apparatus according to claim 1 or 6, wherein the acceleration sensor is a 1-axis acceleration sensor.

8. The motor vibration measuring apparatus according to claim 1 or 6, wherein the acceleration sensor is two 1-axis acceleration sensors fixed to the side surface and/or the lower surface of the first pedestal, respectively.

9. The motor vibration measuring device according to claim 1, wherein the first cylinder has an outer diameter smaller than that of the second cylinder, the elastic member has a frustum shape, the small-diameter end is disposed on the side closer to the first cylinder, and the large-diameter end is disposed on the side closer to the second cylinder.

10. The motor vibration measuring apparatus according to any one of claims 1, 2, 3, 4, 6 and 9, wherein the elastic member is a gel member or a rubber member.