CN213397499U - High-precision bearing roller dynamic unbalance measuring device - Google Patents
High-precision bearing roller dynamic unbalance measuring device Download PDFInfo
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- CN213397499U CN213397499U CN202022820381.1U CN202022820381U CN213397499U CN 213397499 U CN213397499 U CN 213397499U CN 202022820381 U CN202022820381 U CN 202022820381U CN 213397499 U CN213397499 U CN 213397499U
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- bearing roller
- dynamic unbalance
- measuring
- distance
- measuring device
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Abstract
The utility model discloses a high accuracy bearing roller dynamic unbalance measuring device, including device main part and computer, its center of mass to the distance of rotation center when the device main part is used for measuring the bearing roller rotation, the computer is used for calculating the dynamic unbalance amount of bearing roller according to above-mentioned measuring distance value. Has the advantages that: high accuracy bearing roller dynamic unbalance measuring device can accurately detect out the dynamic unbalance amount of high accuracy bearing roller, measuring device job stabilization, reliable moreover, self can not produce dynamic unbalance phenomenon after using for a long time yet, the practicality is good.
Description
Technical Field
The utility model relates to a bearing roller processing field, concretely relates to high accuracy bearing roller dynamic unbalance measuring device.
Background
After the bearing rollers are machined, generally, the unbalance spot check detection is carried out, and after the detection is qualified, the batch of bearing rollers can be sold out of factories;
under the condition of high-speed rotation, the dynamic unbalance of the roller can generate a large centrifugal force, so that the bearing vibrates, and the vibration can directly influence the work of equipment when being too large, so that the high-precision bearing roller needs to be subjected to strict dynamic unbalance detection to ensure that the high-precision bearing roller can normally work on high-precision equipment.
The conventional dynamic unbalance detection method is to clamp a roller through a tool clamp and then drive the clamp to rotate to detect the dynamic unbalance of the roller, the method can also be suitable for detecting the common roller and is not suitable for high-precision bearing rollers, the clamp is difficult to avoid abrasion after being used for a long time, and the clamp is difficult to accurately detect the high-precision bearing rollers because the clamp has certain dynamic unbalance.
Based on this, the utility model is designed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the above-mentioned problem and providing a high accuracy bearing roller dynamic unbalance measuring device, the device can detect out the dynamic unbalance amount of high accuracy bearing roller accurately, and measuring device job stabilization, reliable, long-term back of using self can not produce dynamic unbalance phenomenon yet, see the explanation below for details.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the utility model provides a high accuracy bearing roller dynamic unbalance measuring device, including device main part and computer, the device main part is used for measuring its centre of mass to the distance of rotation center when bearing roller rotates, the computer is used for calculating the dynamic unbalance amount of bearing roller according to above-mentioned measuring distance value;
the device main body is provided with a container for containing the bearing roller and a rotating device for driving the container to rotate around a vertical line, the container is suspended right below the rotating device, and when the bearing roller is static and does not rotate, the central axis of the bearing roller is superposed with the vertical line;
the device main body is also provided with a plurality of distance measuring devices for measuring the distance from the device main body to the bearing roller, and the plurality of distance measuring devices are centrosymmetrically distributed by taking the vertical line as the center.
As an important design of the scheme, the container is a net bag, and the net bag is hung below the rotating device through a lifting rope.
As the optimized design of the scheme, a mounting plate is concentrically mounted on a rotating shaft of the rotating device, and a plurality of lifting ropes are fixedly connected with the mounting plate.
As the optimal design of the scheme, the plurality of measuring devices are fixedly arranged on the circular ring, the circular ring is also fixedly provided with an installation frame, and the rotating device is arranged on the installation frame.
Has the advantages that: high accuracy bearing roller dynamic unbalance measuring device can accurately detect out the dynamic unbalance amount of high accuracy bearing roller, measuring device job stabilization, reliable moreover, self can not produce dynamic unbalance phenomenon after using for a long time yet, the practicality is good.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a top view of the device body;
FIG. 3 is an internal structural view of the apparatus main body;
fig. 4 is a schematic structural view of the net bag.
The reference numerals are explained below:
1. a device main body;
11. a circular ring; 12. a laser ranging sensor; 13. a wire; 14. a mounting frame; 15. a motor; 16. mounting a plate; 17. a lifting rope; 18. a net bag;
2. and (4) a computer.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1, the utility model provides a high accuracy bearing roller dynamic unbalance measuring device, including device main part 1 and computer 2, device main part 1 is used for measuring its centre of mass to the distance of rotation center when the bearing roller is rotatory, computer 2 is used for calculating the dynamic unbalance amount of bearing roller according to above-mentioned measuring distance value (dynamic unbalance amount = the quality of above-mentioned measuring distance value X bearing roller, the quality of bearing roller is known, therefore only need measure when the bearing roller is rotatory its centre of mass to the distance value of rotation center can), computer 2 is from taking a display screen, can show the dynamic unbalance amount numerical value that calculates on the display screen;
the device main part 1 has a container of splendid attire bearing roller and drives the rotary device of container around the rotation of vertical line, and this vertical line is exactly rotary device's rotation central line, in order to prevent that container and rotary device from influencing the measurement of bearing roller dynamic unbalance because of the dynamic unbalance that self exists, container and rotary device need carry out dynamic unbalance measurement before the equipment is used, and only the container and the rotary device that dynamic unbalance amount reached standard can use.
Certainly, the container can also be directly selected from the light string bag 18, so that the measurement of the dynamic unbalance of the bearing roller caused by the possible dynamic unbalance of the container is avoided, as shown in fig. 3 and 4, the string bag 18 is made of light silk threads, the string bag 18 is suspended below the rotating device through the lifting rope 17, and the lifting rope 17 is also made of light silk threads.
As shown in fig. 3, the net bag 18 is tightly fitted over the bearing roller, and the bearing roller shown in fig. 3 is a cylindrical roller, in which case the rotating means does not rotate, and the vertical central axis of the cylindrical roller coincides with the rotation center line of the rotating means.
As shown in fig. 3, there are a plurality of lifting ropes 17, and the plurality of lifting ropes 17 are arranged in a central symmetry manner around the rotation center line of the rotating device.
As shown in fig. 1-3, the device body 1 further has a plurality of distance measuring devices for measuring the distance from the device body to the bearing roller, the distance measuring devices may be a laser distance meter and a laser distance measuring sensor 12, and as shown in fig. 2, the plurality of distance measuring devices are distributed in a central symmetry manner with the rotation center line of the rotating device as the center.
As shown in fig. 1 to 3, a plurality of measuring devices are fixedly installed on the ring 11, an installation frame 14 is also fixedly installed on the ring 11, and the rotating device is installed on the installation frame 14.
The rotating means may be an electric motor 15, a pneumatic motor, a hydraulic motor, or the like.
As shown in fig. 1 to 3, when there are a plurality of lifting ropes 17, in order to facilitate connection of the lifting ropes 17 to the rotating device, a mounting plate 16 may be concentrically mounted on the rotating shaft of the rotating device, and the upper ends of the plurality of lifting ropes 17 are fixedly connected to the mounting plate 16.
The mounting plate 16 is made of light materials, and the mounting plate 16 also needs to be used together with the rotating device for measuring the dynamic unbalance before assembly and use, and can be used only when the dynamic unbalance reaches the standard.
When the device works, all the measuring devices are started to measure the distance from the measuring devices to the bearing rollers, then the rotating devices are started to drive the bearing rollers in the net bag 18 to slowly accelerate to the specified rotating speed through the mounting plate 16 and the lifting ropes 17, the measuring devices transmit the measured data to the computer 2 in real time through the leads 13, the computer 2 analyzes and calculates the measured values, if the bearing rollers accelerate to the specified rotating speed from rest, the measured value measured by the measuring device is not changed, which indicates that the dynamic unbalance amount of the bearing roller is zero, otherwise, if the bearing roller is accelerated to the specified rotating speed, the measured value measured by the measuring device is different from the measured value measured by the measuring device when the bearing roller is static, which indicates the dynamic unbalance of the bearing roller, the computer 2 subtracts the two measured values to obtain the distance from the center of mass to the center of rotation when the bearing roller rotates, and then the distance is multiplied by the mass of the bearing roller to obtain the dynamic unbalance.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (4)
1. A high-precision bearing roller dynamic unbalance measuring device is characterized by comprising a device main body and a computer, wherein the device main body is used for measuring the distance from the mass center to the rotation center of a bearing roller when the bearing roller rotates, and the computer is used for calculating the dynamic unbalance of the bearing roller according to the measured distance value;
the device main body is provided with a container for containing the bearing roller and a rotating device for driving the container to rotate around a vertical line, the container is suspended right below the rotating device, and when the bearing roller is static and does not rotate, the central axis of the bearing roller is superposed with the vertical line;
the device main body is also provided with a plurality of distance measuring devices for measuring the distance from the device main body to the bearing roller, and the plurality of distance measuring devices are centrosymmetrically distributed by taking the vertical line as the center.
2. A measuring device as claimed in claim 1, wherein the container is a net suspended from the rotating means by a lifting rope.
3. The measuring device of claim 2, wherein a mounting plate is concentrically mounted on the rotating shaft of the rotating device, and a plurality of lifting ropes are fixedly connected with the mounting plate.
4. A measuring device as claimed in claim 1, wherein a plurality of measuring devices are fixedly mounted on a ring, a mounting frame is also fixedly mounted on the ring, and the rotating means is mounted on the mounting frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022820381.1U CN213397499U (en) | 2020-11-30 | 2020-11-30 | High-precision bearing roller dynamic unbalance measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022820381.1U CN213397499U (en) | 2020-11-30 | 2020-11-30 | High-precision bearing roller dynamic unbalance measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213397499U true CN213397499U (en) | 2021-06-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022820381.1U Active CN213397499U (en) | 2020-11-30 | 2020-11-30 | High-precision bearing roller dynamic unbalance measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213397499U (en) |
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2020
- 2020-11-30 CN CN202022820381.1U patent/CN213397499U/en active Active
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