CN203695369U - Sliding type eccentric block - Google Patents
Sliding type eccentric block Download PDFInfo
- Publication number
- CN203695369U CN203695369U CN201420015436.3U CN201420015436U CN203695369U CN 203695369 U CN203695369 U CN 203695369U CN 201420015436 U CN201420015436 U CN 201420015436U CN 203695369 U CN203695369 U CN 203695369U
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- CN
- China
- Prior art keywords
- eccentric block
- adjusting bolt
- spring
- eccentric
- sliding type
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
A sliding type eccentric block comprises a shaft sleeve, an eccentric block body, a spring and an adjusting bolt. The shaft sleeve is fixedly connected with a transmission shaft, the eccentric block body is provided with the adjusting bolt, and the spring is arranged between the eccentric block body and the shaft sleeve. The sliding type eccentric block can reduce the resonance of a vibrating machine at the starting and stopping stages and the starting resistance torque of a vibrating motor and correspondingly reduce the impact on a power grid. The exciting force of the vibrating motor at the stable operating stage can be adjusted in a stepless mode through the adjusting bolt.
Description
Technical field
The utility model relates to a kind of eccentric block of vibrating machine, and this eccentric block is mainly used in needing in the equipment of vibration source.
Background technology
Vibrating machine involving vibrations sieve, oscillating feeder, jigging conveyer, vibromill etc.In coal, mine etc., sector application is extensive.Vibrating machine generally adopts vibrating motor as exciting source; starting and shutting down this two stages, in the time that approaching vibrating machine intrinsic frequency, vibrating motor rotating speed will resonate, and amplitude obviously increases; affect stabilization of equipment performance, when serious, may cause personal injury.On the other hand, the eccentric block quality of large-scale vibrating equipment and eccentric throw are all larger, add that winter, vibrating motor bearing grease viscosity became large, can cause difficulty in starting, and electrical network is impacted.Patent 200820031212.6 provides a kind of can change the mechanism of eccentric throw automatically, but wants to change the exciting force of even running stage vibrating motor, can only realize by the quantity of sheet plate on increase and decrease eccentric block, cannot realize the size of step-less adjustment exciting force.
Utility model content
The purpose of this utility model is to provide a kind of slidingtype eccentric block that can automatically change with rotating speed eccentric throw; reduce vibrating machine startup and the resonance in the stage of shutdown; reduce resistance of start square simultaneously, and realize the size of step-less adjustment vibrating motor exciting force by the stroke of eccentric adjustment piece.
The utility model is realized above-mentioned purpose by the following technical solutions: a kind of slidingtype eccentric block, comprises eccentric block, axle sleeve, spring, adjusting bolt, locking nut, baffle plate, fastening bolt and guide pad.Power transmission shaft is relative with axle sleeve fixing, and the two ends of spring connect respectively eccentric block and axle sleeve, and adjusting bolt connects locking nut and eccentric block.The fastened bolt of baffle plate is fixed on power transmission shaft, has realized the axial location of eccentric block.Spring is provided with guider around.
Technical conceive of the present utility model is: by means of the elastic force of spring and the centrifugal force of eccentric block, eccentric throw can change along with the size of rotating speed.When inactive state, eccentric throw be while normally working eccentric throw 1/10th, the resistance of start of vibrating motor is apart from less.Along with the increase of rotating speed, the centrifugal force that eccentric block produces starts to overcome the elastic force of spring, slides towards the direction away from center of rotation, and in the time that motor approaches rated speed, it is spacing that eccentric block is conditioned bolt, and equipment starts normal work.In the shutdown stage; along with rotating speed reduces; the centrifugal force that eccentric block produces is not enough to overcome the elastic force of spring; eccentric block slowly slides towards the direction of center of rotation; in the time that the intrinsic frequency of motor speed and vibratory equipment is suitable; eccentric block has slided to bottom, only produces very little exciting force, and now equipment only can produce slight resonance.
Can change by rotation adjusting bolt the stroke of eccentric block, to reach the object of step-less adjustment exciting force.
Accompanying drawing explanation
Fig. 1 is the front view of the utility model in the time of stopped status.
Fig. 2 is the side view of the utility model in the time of stopped status.
Fig. 3 is the front view of the utility model in the time of normal operation.
In figure, 1 is that eccentric block, 2 is that axle sleeve, 3 is that spring, 4 is that locking nut, 5 is that adjusting bolt, 6 is that power transmission shaft, 7 is that baffle plate, 8 is that fastening bolt, 9 is guide pad.
The specific embodiment
When assembling, first two flat keys are packed in the keyway of power transmission shaft 6, axle sleeve 2 is arranged on power transmission shaft 6, then eccentric block 1 is contained on axle sleeve 2, spring 3 is contained between eccentric block 1 and axle sleeve 2, then puts into two guide pads 9, cover baffle plate 7, finally connect baffle plate 7 and power transmission shaft 6 with fastening bolt 8, realize axial location.
In the time of inactive state, the eccentric throw of eccentric block 1 be while normally working eccentric throw 1/10th, along with the increase of rotating speed, the centrifugal force that eccentric block 1 produces starts to overcome the elastic force of spring 3, slides, towards the direction away from center of rotation in the time that motor approaches rated speed, adjusting bolt 5 on eccentric block 1 is withstood axle sleeve 2, eccentric block 1 position is defined, and now eccentric throw equals to design eccentric throw, and machine starts normal work.In the shutdown stage; along with rotating speed reduces; the centrifugal force that eccentric block 1 produces is not enough to overcome the elastic force of spring 3; eccentric block 1 slowly slides towards the direction of center of rotation, and eccentric throw reduces gradually, and the exciting force of generation also slowly reduces thereupon; in the time that the rotating speed of vibrating motor is suitable with the intrinsic frequency of vibratory equipment; eccentric block 1 has slided to bottom, only produces very little exciting force, and now equipment only can produce slight resonance.
The exciting force of vibrating motor when change equipment is normally worked if think, can realize by adjusting bolt 5, stroke that can step-less adjustment eccentric block 1 by adjusting bolt 5, the eccentric throw of eccentric block 1 while changing equipment even running with this, if want to increase the exciting force of vibrating motor, adjusting bolt 5 is outwards screwed out, if want to reduce the exciting force of vibrating motor, adjusting bolt 5 is inwardly screwed in.Finally locking nut 4 is touched to eccentric block 1 and tighten, realize locking.
Claims (1)
1. a slidingtype eccentric block, comprises eccentric block, axle sleeve, spring, adjusting bolt, locking nut, it is characterized in that: power transmission shaft is relative with axle sleeve fixing, and the two ends of spring connect respectively eccentric block and axle sleeve, and adjusting bolt connects locking nut and eccentric block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420015436.3U CN203695369U (en) | 2014-01-10 | 2014-01-10 | Sliding type eccentric block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420015436.3U CN203695369U (en) | 2014-01-10 | 2014-01-10 | Sliding type eccentric block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203695369U true CN203695369U (en) | 2014-07-09 |
Family
ID=51045868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420015436.3U Expired - Fee Related CN203695369U (en) | 2014-01-10 | 2014-01-10 | Sliding type eccentric block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203695369U (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104167866A (en) * | 2014-07-29 | 2014-11-26 | 徐州五洋科技股份有限公司 | Variable force wheel device for vibration motor |
| CN107029976A (en) * | 2017-06-23 | 2017-08-11 | 石家庄铁道大学 | A kind of vibrator |
| CN107617551A (en) * | 2017-11-07 | 2018-01-23 | 徐工集团工程机械有限公司 | Eccentric block structure and vibrator |
| CN108086103A (en) * | 2017-12-20 | 2018-05-29 | 温州市创新市政建设工程有限公司 | A kind of road construction leveling device that shakes |
| CN108291368A (en) * | 2015-11-20 | 2018-07-17 | 普拉塞-陶伊尔铁路机械出口股份有限公司 | Unit and method are made firm by ramming for tamping railway |
| CN108802807A (en) * | 2018-06-12 | 2018-11-13 | 西南石油大学 | A kind of adjustable small controllable earthquake focus exciting device of exciting force bandwidth |
| CN110077786A (en) * | 2019-05-13 | 2019-08-02 | 张建东 | A kind of motor oscillating vibration exciter |
| CN110409445A (en) * | 2019-07-30 | 2019-11-05 | 浙江科技学院 | Reduce pile-sinking device and pile sinking process that vibration influences |
| CN110639808A (en) * | 2019-10-18 | 2020-01-03 | 长江大学 | Adjusting eccentric block capable of realizing double-track motion of vibrating screen |
| CN114146902A (en) * | 2021-11-24 | 2022-03-08 | 南昌矿机集团股份有限公司 | Vibration sieve vibration reduction resonance eccentric block and vibration motor |
| CN114700245A (en) * | 2022-04-18 | 2022-07-05 | 东北大学秦皇岛分校 | Vibration device with excitation force self-adjusting function and parameter determination method thereof |
-
2014
- 2014-01-10 CN CN201420015436.3U patent/CN203695369U/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104167866A (en) * | 2014-07-29 | 2014-11-26 | 徐州五洋科技股份有限公司 | Variable force wheel device for vibration motor |
| CN108291368A (en) * | 2015-11-20 | 2018-07-17 | 普拉塞-陶伊尔铁路机械出口股份有限公司 | Unit and method are made firm by ramming for tamping railway |
| CN107029976A (en) * | 2017-06-23 | 2017-08-11 | 石家庄铁道大学 | A kind of vibrator |
| CN107617551A (en) * | 2017-11-07 | 2018-01-23 | 徐工集团工程机械有限公司 | Eccentric block structure and vibrator |
| CN108086103B (en) * | 2017-12-20 | 2020-01-31 | 中铁十八局集团北京工程有限公司 | vibration leveling device for road construction |
| CN108086103A (en) * | 2017-12-20 | 2018-05-29 | 温州市创新市政建设工程有限公司 | A kind of road construction leveling device that shakes |
| CN108802807A (en) * | 2018-06-12 | 2018-11-13 | 西南石油大学 | A kind of adjustable small controllable earthquake focus exciting device of exciting force bandwidth |
| CN108802807B (en) * | 2018-06-12 | 2021-03-30 | 西南石油大学 | Small controllable seismic source excitation device with adjustable excitation force frequency width |
| CN110077786A (en) * | 2019-05-13 | 2019-08-02 | 张建东 | A kind of motor oscillating vibration exciter |
| CN110409445A (en) * | 2019-07-30 | 2019-11-05 | 浙江科技学院 | Reduce pile-sinking device and pile sinking process that vibration influences |
| CN110409445B (en) * | 2019-07-30 | 2021-04-13 | 浙江科技学院 | Pile sinking device and method for reducing vibration influence |
| CN110639808A (en) * | 2019-10-18 | 2020-01-03 | 长江大学 | Adjusting eccentric block capable of realizing double-track motion of vibrating screen |
| CN110639808B (en) * | 2019-10-18 | 2024-04-09 | 长江大学 | Adjustable eccentric block capable of realizing double-track motion of vibrating screen |
| CN114146902A (en) * | 2021-11-24 | 2022-03-08 | 南昌矿机集团股份有限公司 | Vibration sieve vibration reduction resonance eccentric block and vibration motor |
| CN114700245A (en) * | 2022-04-18 | 2022-07-05 | 东北大学秦皇岛分校 | Vibration device with excitation force self-adjusting function and parameter determination method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140709 Termination date: 20150110 |
|
| EXPY | Termination of patent right or utility model |