CN209014140U - A kind of large scale equipment intrinsic frequency measuring device - Google Patents
A kind of large scale equipment intrinsic frequency measuring device Download PDFInfo
- Publication number
- CN209014140U CN209014140U CN201822103573.3U CN201822103573U CN209014140U CN 209014140 U CN209014140 U CN 209014140U CN 201822103573 U CN201822103573 U CN 201822103573U CN 209014140 U CN209014140 U CN 209014140U
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- China
- Prior art keywords
- power source
- source component
- large scale
- vibration
- measuring device
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- Expired - Fee Related
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- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The utility model provides a kind of large scale equipment intrinsic frequency measuring device, it includes power source component, vibration generating assembly, vibration signal sensor, electric control system, and the electric control system and power source component, vibration generating assembly, vibration signal sensor form electric signal and be correspondingly connected with cooperation.The advantages that the utility model structure is simple, easy to use, and measurement effect is good.
Description
Technical field:
The utility model relates to frequency measuring equipments, are specifically exactly a kind of large scale equipment intrinsic frequency measuring device.
Background technique: the research and analysis of mechanical oscillation is in Machine Design and application using an extremely extensive research
Direction, the size of vibration not only influence system lifetim and stability, but also are possible to generate very big noise, need therefore to grind
Studying carefully vibration has very important theoretical and practical significance.Mechanical system is integrated for the large size with slewing, in system
Generally require to understand the intrinsic frequency of its inner main component when design, so that it is solid to allow the working frequency of rotary part to avoid these
There is frequency band, in order to avoid the generation of covibration.But mechanical equipment biggish for some volume and weights or component, inherently
Frequency measurement get up it is more troublesome, and the problems such as precision is not high.
Utility model content:
The utility model is exactly in order to overcome the shortcomings in the prior art, to provide a kind of large scale equipment intrinsic frequency measurement dress
It sets.
The utility model the following technical schemes are provided:
A kind of large scale equipment intrinsic frequency measuring device, it is characterised in that: it includes power source component, in power source component
Side is equipped with vibration generating assembly, and the power source component is formed power transmission and connect with vibration generating assembly by belt matches
It closes, is equipped with electrical control gear in the power source component other side, is equipped at least one vibration signal on vibration generating assembly and passes
Sensor, the electrical control gear form electric signal with power source component and vibration signal sensor respectively by cable and connect
Cooperation.
Based on the above technical solution, there can also be technical solution further below:
The power source component includes: motor base, variable-frequency motor is equipped on motor base, in the defeated of variable-frequency motor
Shaft is equipped with big belt wheel, and the big belt wheel and belt form corresponding matching.
The vibration generating assembly includes shake table, and portion is equipped with one group and tested equipment corresponding matching on a vibration table
Fixation briquetting, transmission shaft is connected with by a pair of bearing in shake table lower part, be inserted on transmission shaft at least one partially
Heart vibrating mass is equipped in transmission shaft one end and small pulley, the small pulley and belt forms corresponding matching.
The electrical control gear includes electric control box, display screen is equipped on electric control box, under display screen
It is additionally provided with one group of control button on the electric control box of side, is equipped with inside electric control box and is formed with display screen and control button
The frequency converter and data processing module of electric signal connection cooperation.
Utility model advantage:
The utility model structure is simple, easy to use, and manufacturing cost is cheap, and detection effect is accurate, applied widely etc. excellent
Point.
Detailed description of the invention:
Fig. 1 is the overall structure diagram of the utility model；
Fig. 2 is the bottom view of shake table in Fig. 1.
Specific embodiment: as illustrated in fig. 1 and 2, a kind of large scale equipment intrinsic frequency measuring device, including power source group
Part, the power source component include: motor base 12, variable-frequency motor 10 are equipped on motor base 12, in variable-frequency motor 10
Output shaft be equipped with big belt wheel 9.Variable-frequency motor 10 forms electricity by power supply line not shown in figure and plug and commercial power socket
Power connection cooperation.
It is equipped with vibration generating assembly in power source component side, the vibration generating assembly includes shake table 3, is being vibrated
Platform 3 is equipped with measurement equipment 1 to be checked, and one is respectively equipped on the shake table 3 of 1 two sides of detection device along shake table length direction point
The sliding slot 3a of cloth, two sliding slot 3a are through slot structure, and are parallel to each other.One group of sliding block is equipped in each sliding slot 3a
3b is equipped with screw rod 3c vertically on each sliding block 3b, and consolidating for one end and 1 corresponding matching of detection device is arranged on screw rod 3c
Level pressure block 3d is also arranged with locking nut 3e on the screw rod 3c above fixed briquetting 3d.It will test equipment by fixed briquetting
It fixes on a vibration table.
Open Side Down the length of mounting groove a, the mounting groove a along shake table 3 is equipped on 3 lower surface of shake table
Directional spreding is respectively equipped with an erecting bed 13a at the both ends of mounting groove a, a bearing is equipped on each erecting bed 13a
Seat 13, transmission shaft 14 is equipped in bearing block 13, is equipped with one on the axle body of the transmission shaft 14 between two bearing blocks 13
To the eccentric vibration block 15 for forming corresponding matching with mounting groove a cell wall, mounting groove a is stretched out in described 14 one end of transmission shaft, at its end
Portion is equipped with small pulley 7.It is arranged with a belt 8 on the small pulley 7 and big belt wheel 9, big belt wheel 9 is made by belt 8
Transmission cooperation is formed with small pulley 7.
It is equipped with the first vibrating sensor 4 on the upper surface of shake table 3, is equipped on the width end face of 3 side of shake table
Second vibrating sensor 5 is equipped with third vibrating sensor 6 on the length end face of 3 side of shake table.First vibration passes
Sensor 4 is used to detect the vibration signal in shake table vertical direction, and the second vibrating sensor 5 is for detecting shake table length direction
On vibration signal, third vibrating sensor 6 is used to detect vibration signal in shake table width direction.
It is equipped with electrical control gear in the power source component other side, the electrical control gear includes electric control box
1101, equipped with display screen 1102 on electric control box 1101, on the electric control box 1101 below display screen 1102 also
Equipped with one group of control button 1103, it is equipped with inside electric control box 1101 and forms electricity with display screen 1102 and control button 1103
The frequency converter and data processing module of signal connection cooperation.
First vibrating sensor 4, the second vibrating sensor 5, third vibrating sensor 6 and the variable-frequency motor 10 is logical
It crosses cable 2 and connect cooperation with the data processing module formation electric signal in electric control box 1101.
The course of work:
Firstly, measurement equipment to be checked is placed on shake table, locking nut is then rotated, is set with fixed briquetting by be detected
It is standby to compress on a vibration table.It is then issued and is instructed to data processing module by control button, then data processing module controls
Variable-frequency motor starting, the power of variable-frequency motor are transmitted to small pulley through belt by big belt wheel, then drive transmission shaft rotation, pass
Eccentric vibration block on moving axis also rotates with it generation vibration.First vibrating sensor, the second vibrating sensor, third vibration pass
The signal that sensor will test passes to data processing module, shows on a display screen after data processing module is handled
Come.
In the detection process, the output revolving speed for constantly changing variable-frequency motor by control button, when being shown on display screen
When large amplitude abnormal transient vibration signal, then it may determine that this frequency is the intrinsic frequency or multistage intrinsic frequency of equipment under test.
Claims (4)
1. a kind of large scale equipment intrinsic frequency measuring device, it is characterised in that: it includes power source component, in power source component one
Side is equipped with vibration generating assembly, and the power source component forms power transmission by belt (8) with vibration generating assembly and connect
Cooperation is equipped with electrical control gear in the power source component other side, is equipped at least one vibration signal on vibration generating assembly
Sensor, the electrical control gear form electric signal with power source component and vibration signal sensor respectively by cable and connect
Connect cooperation.
2. a kind of large scale equipment intrinsic frequency measuring device according to claim 1, it is characterised in that: the power
Source component includes: motor base (12), is equipped with variable-frequency motor (10) on motor base (12), the output in variable-frequency motor (10)
Axis is equipped with big belt wheel (9), and the big belt wheel (9) and belt (8) form corresponding matching.
3. a kind of large scale equipment intrinsic frequency measuring device according to claim 1, it is characterised in that: the vibration
Generating assembly includes shake table (3), is equipped with one group on shake table (3) top and presses with the fixed of tested equipment (1) corresponding matching
Block (3d) is connected with transmission shaft (14) by a pair of bearing (13) in shake table (3) lower part, is inserted on transmission shaft (14)
At least one eccentric vibration block (15) is equipped with and small pulley (7), the small pulley (7) and belt in transmission shaft (14) one end
(8) corresponding matching is formed.
4. a kind of large scale equipment intrinsic frequency measuring device according to claim 1, it is characterised in that: described is electrical
Control device includes electric control box (1101), display screen (1102) is equipped on electric control box (1101), in display screen
(1102) one group of control button (1103) is also equipped on the electric control box (1101) below, in electric control box (1101)
Portion, which is equipped with, forms the frequency converter and data processing module that electric signal connect cooperation with display screen (1102) and control button (1103).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822103573.3U CN209014140U (en) | 2018-12-14 | 2018-12-14 | A kind of large scale equipment intrinsic frequency measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822103573.3U CN209014140U (en) | 2018-12-14 | 2018-12-14 | A kind of large scale equipment intrinsic frequency measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209014140U true CN209014140U (en) | 2019-06-21 |
Family
ID=66843736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822103573.3U Expired - Fee Related CN209014140U (en) | 2018-12-14 | 2018-12-14 | A kind of large scale equipment intrinsic frequency measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209014140U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109374123A (en) * | 2018-12-14 | 2019-02-22 | 蚌埠学院 | A kind of large scale equipment intrinsic frequency measuring device |
-
2018
- 2018-12-14 CN CN201822103573.3U patent/CN209014140U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109374123A (en) * | 2018-12-14 | 2019-02-22 | 蚌埠学院 | A kind of large scale equipment intrinsic frequency measuring device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190621 Termination date: 20191214 |