CN215768912U

CN215768912U - Motor rotating speed measuring device

Info

Publication number: CN215768912U
Application number: CN202121746722.3U
Authority: CN
Inventors: 徐传来; 马艳红; 高缘缘; 鲍宇; 邱匀彦
Original assignee: Suzhou New Geyuan Biotechnology Co ltd
Current assignee: Suzhou New Geyuan Biotechnology Co ltd
Priority date: 2021-07-29
Filing date: 2021-07-29
Publication date: 2022-02-08
Anticipated expiration: 2031-07-29

Abstract

The utility model belongs to the technical field of rotating speed measurement, and discloses a rotating speed measuring device which comprises a measuring shaft, a first adapter, a second adapter and a measuring meter, wherein a rotating speed sensing device is arranged on the measuring shaft, the first adapter is detachably arranged on the measuring shaft and used for being connected with an output shaft of a motor, the second adapter is detachably and rotatably connected with the measuring shaft and used for being connected with a shell of the motor, and the measuring meter is arranged on the second adapter and matched with the rotating speed sensing device to measure the rotating speed of the motor. According to the rotating speed measuring device provided by the utility model, the measuring meter is used for receiving the rotating speed signal generated by the rotating speed sensing device and converting the rotating speed signal into the rotating speed signal of the motor to be measured, the operation is simple, the use is convenient, the first adapter and the second adapter are detachably replaced and can be adapted to motors of different models, the compatibility of the rotating speed measuring device is effectively improved, the detection efficiency is improved, and the use cost is effectively reduced.

Description

Motor rotating speed measuring device

Technical Field

The utility model relates to the field of rotating speed measurement, in particular to a motor rotating speed measuring device.

Background

As a common driving device, motors are widely used in industrial production, and when a user checks the performance of the motor, the rotation speed of the motor needs to be measured. Among present motor speed measuring device, the motor speed measuring device of a model often only corresponds a measurement to measure the motor, and is compatible poor to the use of different model devices, and general type is low, and when measuring different model motors, need be equipped with a plurality of and wait to examine motor assorted speed measuring device, causes use cost to increase by a wide margin, and detection efficiency descends.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a rotating speed measuring device, which solves the problems that the rotating speed measuring device in the prior art is poor in use compatibility of motors of different types and low in universality.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a rotational speed measuring apparatus comprising: the measuring shaft is provided with a rotating speed sensing device; the first adapter is detachably arranged on the measuring shaft and is used for being connected with an output shaft of the motor; the second adapter is detachably and rotatably connected with the measuring shaft, and is used for being connected with a shell of the motor; and the measuring meter is arranged on the second adapter, and the measuring meter is matched with the rotating speed sensing device to measure the rotating speed of the motor.

Preferably, the rotation speed sensing device is provided as a magnet.

Preferably, an installation groove is formed in the side surface of the measuring shaft, and the magnet is installed in the installation groove.

Preferably, a gap between the magnet and the mounting groove is filled with a filler, and the filler is used for fixing the magnet.

Preferably, the mounting groove is disposed offset from an axial center line of the measuring shaft.

Preferably, a measuring fixing frame is arranged on the second adapter, and the measuring fixing frame is used for supporting the measuring meter.

Preferably, the measurement holder is provided in plurality, and the plurality of measurement holders support the meter in common.

Preferably, the plurality of measurement fixing frames are all arranged on one side of the measurement shaft, and the plurality of measurement fixing frames are arranged along the radial direction of the measurement shaft.

Preferably, the measuring fixing frame is provided with a supporting groove, and the measuring meter is supported in the supporting groove.

Preferably, a rolling bearing is arranged between the second adapter and the measuring shaft.

Has the advantages that:

when the rotating speed measuring device provided by the utility model is used for measuring the rotating speed, the first adapter is connected with the motor output shaft, the second adapter is arranged on the motor shell, when the motor to be measured works, the motor output shaft drives the first adapter to rotate, so that the measuring shaft is driven to rotate together, the rotating speed sensing device on the measuring shaft generates a rotating speed signal, and the measuring meter receives the rotating speed signal of the rotating speed sensing device, so that the rotating speed of the motor to be measured is converted.

Drawings

FIG. 1 is a schematic view of a rotational speed measuring apparatus according to the present invention;

FIG. 2 is a schematic view of the present invention with the meter removed.

In the figure:

1. a measuring shaft; 11. mounting grooves; 2. a first adapter; 3. a second adapter; 31. measuring the fixed frame; 32. a support groove; 4. measuring a meter; 5. and a magnet.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting of the utility model. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

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.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, 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 thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

The present embodiment provides a rotation speed measuring apparatus, as shown in fig. 1, the rotation speed measuring apparatus includes: the measuring shaft 1 is provided with a rotating speed sensing device; the first adapter 2 is detachably arranged on the measuring shaft 1, and the first adapter 2 is used for being connected with an output shaft of the motor; the second adapter 3 is detachably and rotatably connected with the measuring shaft 1, and the second adapter 3 is used for being connected with a shell of the motor; the measuring meter 4 is arranged on the second adapter 3, and the measuring meter 4 is matched with the rotating speed sensing device to measure the rotating speed of the motor. Specifically, the connecting end of the first adapter 2 is provided with a first protruding clamping connector, and the first clamping connector is matched with a first clamping groove at the connecting end of the motor output shaft. When connecting, insert the first joint of 2 tip of first adapter to the first joint groove of motor output shaft connection tip to realize being connected of first adapter 2 and motor output shaft, and then at the motor during operation, the output shaft drives first adapter 2 and rotates jointly. The shape of the first clamping connector is set according to the shape of the first clamping groove at the connecting end part of the output shaft of the connected motor, and the shape is not limited too much here.

In this embodiment, the position of relative output shaft is provided with bellied second joint on the motor casing that awaits measuring, and 3 bottoms of second adapter be provided with the casing on the second joint groove of bellied second joint looks adaptation, when second adapter 3 is connected with motor casing, insert the second joint on the motor casing to the second joint groove of 3 bottoms of second adapter to realize being connected of second adapter 3 and motor casing. The shape of the second clamping groove is set according to the specific shape of the second clamping head on the connected motor shell, and is not limited too much here.

Preferably, first adapter 2 and second adapter 3 all set up to dismantling to can install first adapter 2 and second adapter 3 with it looks adaptation according to the model size of the motor that awaits measuring, thereby can satisfy the rotational speed measurement to different model motors, can effectively improve the compatibility that rotational speed measuring device used, improve detection efficiency, reduce use cost.

In this embodiment, when measuring the rotation speed, the output shaft of the motor drives the first rotating joint 2 to rotate, so as to drive the measuring shaft 1 to rotate together, so that the rotation speed sensing device on the measuring shaft 1 generates a rotation speed signal, and the measuring meter 4 receives the rotation speed signal of the rotation speed sensing device, so as to measure the rotation speed of the motor. In particular, the rotation speed sensing means is provided as a magnet 5, i.e. the generated rotation speed sensing signal is a magnetic induction signal, so that it can be recognized and received effectively by the measuring meter 4. The side surface of the measuring shaft 1 is provided with the mounting groove 11, the magnet 5 is mounted in the mounting groove 11, the magnet 5 is quickly mounted in the measuring shaft 1 in the mode, and the method is simple to operate and convenient to mount. The gap between the magnet 5 and the mounting groove 11 is filled with a filler, and the magnet 5 in the mounting groove 11 can be fixed well. In this embodiment, the filler material may be rubber or plastic, and is not limited herein.

In this embodiment, a hall switch is disposed in the measuring meter 4, the detected magnetic induction signal can be converted into an electrical signal, when the rotation speed is measured, the magnet 5 rotates along with the measuring shaft 1, that is, the magnet 5 will continuously pass through the front of the measuring meter 4, when the magnet 5 passes through the front of the measuring meter 4, the hall element on the measuring meter 4 changes the circuit state inside the hall switch due to the hall effect, and the change frequency of the circuit state inside the hall switch in the measuring meter 4 is different according to the difference of the frequency of the magnet 5 continuously passing through the front of the measuring meter 4, so that the rotation speed of the motor is converted from the change frequency of the circuit state inside the hall switch in the measuring meter 4. Further, the mounting groove 11 is disposed offset from the axis of the measuring shaft 1, so that the measuring gauge 4 can more clearly detect the rotational frequency signal emitted from the magnet 5 when the measuring shaft 1 rotates.

In this embodiment, as shown in fig. 2, the second adapter 3 is provided with a measuring fixing frame 31 for supporting the measuring meter 4, and the measuring meter 4 is supported on the measuring fixing frame 31, so that the distance between the measuring meter 4 and the magnet 5 is as close as possible, and the measuring meter 4 can more effectively detect the magnetic induction signal emitted by the magnet 5. The measurement holder 31 is provided in plural, and the plural measurement holders 31 support the measurement gauge 4 in common, so that the measurement gauge 4 can be supported more stably. The measuring fixing frames 31 are all arranged on one side of the measuring shaft 1, and the measuring fixing frames 31 are radially arranged along the measuring shaft 1, so that the measuring meters 4 can be supported by the measuring fixing frames 31 on the same side of the measuring shaft 1. Preferably, each of the measurement holders 31 starts with a support groove 32, and the meter 4 is supported in the support groove 32, so that the support stability is improved.

In this embodiment, a rolling bearing is disposed between the second adapter 3 and the measuring shaft 1, so that the measuring shaft 1 has good rotation performance on the second adapter 3.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, adaptations and substitutions will occur to those skilled in the art without departing from the scope of the utility model. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A rotational speed measuring apparatus, comprising:

the measuring shaft (1), a rotating speed sensing device is arranged on the measuring shaft (1);

the first adapter (2) is detachably arranged on the measuring shaft (1), and the first adapter (2) is used for being connected with an output shaft of a motor;

the second adapter (3) is detachably and rotatably connected with the measuring shaft (1), and the second adapter (3) is used for being connected with a shell of the motor;

the measuring meter (4) is arranged on the second adapter (3), and the measuring meter (4) is matched with the rotating speed sensing device to measure the rotating speed of the motor.

2. A rotation speed measuring device according to claim 1, characterized in that the rotation speed sensing means is provided as a magnet (5).

3. A rotation speed measuring device according to claim 2, wherein the measuring shaft (1) is provided with a mounting groove (11) at a side surface thereof, and the magnet (5) is mounted in the mounting groove (11).

4. A rotation speed measuring device according to claim 3, wherein a filler is provided in the gap between the magnet (5) and the mounting groove (11), and the filler is used for fixing the magnet (5).

5. A rotation speed measuring device according to claim 3, wherein the mounting groove (11) is provided offset from the axis of the measuring shaft (1).

6. A rotational speed measuring device according to claim 1, characterized in that the second adapter (3) is provided with a measuring holder (31), which measuring holder (31) is intended to support the meter (4).

7. A rotation speed measuring device according to claim 6, wherein a plurality of the measuring holders (31) are provided, and a plurality of the measuring holders (31) support the measuring meter (4) in common.

8. A rotation speed measuring device according to claim 7, wherein a plurality of the measuring holders (31) are provided on one side of the measuring shaft (1), and a plurality of the measuring holders (31) are arranged in a radial direction of the measuring shaft (1).

9. A rotation speed measuring device according to claim 6, wherein the measuring fixture (31) is provided with a support groove (32), and the measuring gauge (4) is supported by the support groove (32).

10. A rotation speed measuring device according to claim 1, characterized in that a rolling bearing is arranged between the second adapter (3) and the measuring shaft (1).