CN108554802B - Tension spring coupled homodromous rotary multi-excitation motor device - Google Patents
Tension spring coupled homodromous rotary multi-excitation motor device Download PDFInfo
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- CN108554802B CN108554802B CN201810496543.5A CN201810496543A CN108554802B CN 108554802 B CN108554802 B CN 108554802B CN 201810496543 A CN201810496543 A CN 201810496543A CN 108554802 B CN108554802 B CN 108554802B
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- excitation
- excitation motor
- motor
- motors
- tension
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/42—Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/10—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of mechanical energy
- B06B1/16—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of mechanical energy operating with systems involving rotary unbalanced masses
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
- B07B1/284—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens with unbalanced weights
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
Abstract
The invention discloses a tension spring coupled homodromous rotary multi-excitation motor device, and belongs to the field of vibration screening. The device comprises an excitation motor, a tension spring, a motor base, a pin and the like. The axial lines of the exciting motors are arranged on the motor base in parallel, tension springs are arranged at the lower parts (or the upper parts) of the eccentric blocks between two adjacent exciting motors at the same radial position on one side, and the same tension springs are arranged at the upper parts (or the lower parts) of the eccentric blocks between two adjacent exciting motors at the same radial position on the other side. Before starting, the tension springs at the two sides keep a certain pretension force; in the synchronization process, the tension of the tension springs at the two sides is alternately changed, and finally the stress states of the tension springs at the two sides tend to be consistent, so that the phases of a plurality of excitation motors rotating in the same direction tend to be 0-degree synchronization. The device can be used for a heavy screen with multi-layer screen driven by multiple exciting motors, and can fully exert exciting force of the exciting motor which is coupled with the tension springs and rotates in the same direction. The invention has novel and simple structure, easy installation and low cost.
Description
Technical Field
The invention relates to a tension spring coupled homodromous multi-excitation motor device which is used for a large screen for screening metallurgy, mines, petroleum, coal and the like.
Background
The vibrating screen is widely applied to various fields of mines, metallurgy, coal, chemical industry, food industry, petroleum and the like, and has the main functions of classifying, sorting, dehydrating and the like materials. In petroleum drilling operations, a vibrating screen is used as the first stage equipment of a solids control system to screen out a large amount of solid phase from the drilling fluid and recover as much of the drilling fluid as possible. In recent years, with the continuous development of the drilling construction technology, the requirements on the drilling vibrating screen are also higher and higher. Because the drilling operation site has bad environment and narrow space, the screening efficiency and the processing capacity of the drilling vibrating screen need to be further improved, and the multi-layer screen driven by the multi-excitation motor is transported. Under the condition of fully utilizing the space condition of the site, the multi-layer screen driven by the multi-excitation motor not only can enlarge the screening area, but also can increase the excitation force of the system, thereby being beneficial to the development of the vibrating screen towards the large-scale, high-strength and large-processing-capacity directions. The chinese patent ZL201510227417.6 proposes that coupling units are installed on one side of two excitation motors rotating in the same direction, so as to achieve zero-phase near synchronization. However, the characteristics of the coupling unit have a great influence on the synchronous state of the system, the processing and mounting errors of the coupling unit and the like easily cause the system to generate a clamping phenomenon in the starting stage, and the motor is unstable to operate after the system is started; meanwhile, the patent merely proposes coupling between two excitation motors, and does not propose a scheme of coupling a plurality of excitation motors to each other. CN201610728411.1 proposes a torsional spring coupled elliptical vibrating screen with three excitation motors, which solves the problem of coupling two excitation motors installed coaxially, but still does not solve the problem existing between two co-rotating excitation motors with parallel and different axes. In order to solve the problems, the same-direction rotary multi-excitation motor device coupled by tension springs is provided.
Disclosure of Invention
The invention aims to solve the problem of coupling between two excitation motors rotating in the same direction, and provides a tension spring coupled same-direction rotary multi-excitation motor device.
In order to achieve the above purpose, the present invention adopts the following technical scheme.
A tension spring coupled same-direction rotary multi-excitation motor device comprises tension springs, two or more excitation motors, motor bases, pins, pin sleeves, spring fixing blocks, locking nuts, threaded rods, hooks and the like. Tension springs are arranged at the same radial positions of the upper parts (or the lower parts) of the eccentric blocks of the adjacent vibration excitation motors on one sides of the vibration excitation motors, and the same tension springs are arranged at the same radial positions of the lower parts (or the upper parts) of the eccentric blocks on the other sides of the vibration excitation motors.
The pin bush is arranged on the spring fixing block, one side of the spring fixing block is welded with a threaded rod, two ends of the other spring fixing block are provided with hooks, and the hooks can do rotary motion around the hooks. One end of the tension spring is connected with the hook, the other end of the tension spring is welded with a locking nut, and the locking nut is arranged on the fixed block with the threaded rod. The pin sleeve of the spring fixing block is connected with the eccentric block through a pin, and can do rotary motion around the pin.
In the installation process, the tension springs at the two sides are in the original length state (zero tension); after the installation, the locking nut is adjusted, so that the tension springs at the two sides keep certain pretension force. When all exciting motors are started simultaneously, due to the difference of the specificity of the exciting motors, the eccentric blocks of all exciting motors cannot be started synchronously at the same speed, so that the phase difference exists between two adjacent exciting motors, the tension force of the tension spring on one side is increased, the tension force of the tension spring on the other side is reduced, and the magnitude of the tension difference of the two tension springs is in direct proportion to the phase difference of the two exciting motors.
In the synchronization process, the tension forces of the tension springs at the two sides are alternately changed, so that the stress states of the tension springs at the two sides are consistent, the phases of a plurality of excitation motors rotating in the same direction are synchronous at 0 degrees, the directions of the generated excitation forces are the same, and the resultant force of the excitation forces is maximum.
When the device is applied to vibrating machines such as a vibrating screen and the like, after a plurality of exciting motors are started and stably run, only one of the exciting motors is electrified, and the rest exciting motors are powered off.
The invention has the advantages that: (1) The traditional excitation synchronous mode is completely replaced by the coupling of the tension springs, the defects of slipping of belt transmission, heating of gear transmission and the like are overcome, and the service life of the excitation device is obviously prolonged; (2) Through the coupling of the tension springs, the exciting forces of a plurality of homodromous rotary exciters can be fully volatilized, and the vibrating screen is suitable for a heavy screen with large screening area; and (3) the invention has low energy consumption. When the system is in a steady state, only one of the excitation motors is electrified, the device can still keep stable operation, and the vibration parameters are basically the same as those of all the excitation motors when the excitation motors are electrified; (4) The invention provides a novel coupling mode, which has the advantages of simple and reasonable structure, easy installation, low cost and good applicability.
Drawings
Fig. 1 is a front view of the structure of a tension spring coupled co-rotating multiple excitation motor device of the present invention.
Fig. 2 is a rear view of the structure of a tension spring coupled co-rotating multiple excitation motor apparatus of the present invention.
Fig. 3 is a partial enlarged view of one end of the connecting part of the tension spring and the eccentric block of the tension spring coupled homodromous rotary multi-excitation motor device.
Fig. 4 is a partial enlarged view of the other end of the connecting part of the tension spring and the eccentric block of the tension spring coupled unidirectional rotation multiple excitation motor device.
Fig. 5 is an illustration of an embodiment of a tension spring coupled co-rotating multiple excitation motor assembly of the present invention.
In the figure, 1, a first excitation motor; 2. an eccentric block of the first excitation motor; 3. a second excitation motor; 4. an eccentric block of the second excitation motor; 5. a third excitation motor; 6. an eccentric block of the third excitation motor; 7. a tension spring; 8. a spring fixing block; 9. a pin sleeve; sixthly, pins; 11. a threaded rod; 12. a lock nut; 13. a hook; 14. and a motor base.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1, 2, 3, 4 and 5, the tension spring coupled same-direction rotary multi-excitation motor device mainly comprises a first excitation motor 1, an eccentric block 2 of the first excitation motor, a second excitation motor 3, an eccentric block 4 of the second excitation motor, a third excitation motor 5, an eccentric block 6 of the third excitation motor, a tension spring 7, a spring fixing block 8, a pin bush 9, a pin 10, a threaded rod 11, a locking nut 12, a hook 13, a motor base 14 and the like. The first excitation motor 1, the second excitation motor 3 and the third excitation motor 5 are fixed on the motor base 14 through bolts, and the axes of the three excitation motors are parallel. Due to the gravity characteristic of the system, the eccentric blocks of the three excitation motors are all at the lowest position before starting. Tension springs 7 are installed at the same radial positions of the front lower parts of the first excitation motor eccentric block 2 and the second excitation motor eccentric block 4, and tension springs 7 are installed at the same radial positions of the front lower parts of the second excitation motor eccentric block 4 and the third excitation motor eccentric block 6, as shown in fig. 1. On the rear side, a tension spring 7 is installed at the same radial position of the upper parts of the first excitation motor eccentric block 2 and the second excitation motor eccentric block 4, and a tension spring 7 is installed at the same radial position of the upper parts of the second excitation motor eccentric block 4 and the third excitation motor eccentric block 6, as shown in fig. 2.
One side of the spring fixing block 8 is welded with a threaded rod 11, two ends of the other spring fixing block 8 are provided with hooks 13, and the hooks 13 can do rotary motion around themselves. One end of the tension spring 7 is welded with a locking nut 12 which is arranged on a spring fixing block 8 with a threaded rod 11, as shown in figure 3; the hook at the other end of the tension spring 7 is connected with the hook 13 of the spring fixing block 8, as shown in figure 4. The pin bush 9 is arranged in the spring fixing block 8, and the pin bush 9 of the spring fixing block at two ends of the tension spring is connected with the eccentric block through a pin 10 and can rotate around the pin 10, as shown in figures 3 and 4.
In the installation process, the tension springs 7 at the two sides are in the original length state (zero tension); after the installation, the screw nut 12 is locked on the adjusting screw, so that the tension springs 7 at the two sides keep a certain pretension force. In the synchronization process, the tension forces of the tension springs at the two sides are alternately changed, so that the stress states of the tension springs at the two sides are consistent, the phases of a plurality of vibration motors rotating in the same direction are synchronous at 0 degrees, the directions of the generated vibration forces are the same, and the resultant force of the vibration forces is maximum.
When the device is applied to vibrating machines such as a vibrating screen and the like, after three excitation motors are started and stably run, only one of the excitation motors is electrified, and the rest excitation motors are powered off, the device can still keep stable running, and vibration parameters are basically the same as those of all the excitation motors when the excitation motors are electrified, as shown in figure 5.
Claims (3)
1. The utility model provides a draw spring coupling's the many excitation motor device of same direction gyration, mainly by first excitation motor, the eccentric block of first excitation motor, second excitation motor, the eccentric block of second excitation motor, third excitation motor, the eccentric block of third excitation motor, draw spring, spring fixed block, round pin cover, pin, threaded rod, lock nut, couple, motor cabinet are constituteed, characterized in that, first excitation motor, second excitation motor, third excitation motor pass through the bolt fastening on the motor cabinet, and the axis of three excitation motors is parallel; a tension spring is arranged at the same radial position of the eccentric block of the first excitation motor and the lower part of the front side of the eccentric block of the second excitation motor, and the tension spring is arranged at the same radial position of the eccentric block of the second excitation motor and the lower part of the front side of the eccentric block of the third excitation motor; a tension spring is arranged at the same radial position of the eccentric block of the first excitation motor and the upper part of the eccentric block of the second excitation motor at the rear side, and a tension spring is arranged at the same radial position of the eccentric block of the second excitation motor and the upper part of the eccentric block of the third excitation motor; one end of the tension spring is welded with a locking nut which is arranged on a spring fixing block with a threaded rod; the hook at the other end of the tension spring is connected with the hook of the spring fixing block; the pin sleeve is arranged in the spring fixing block, and the pin sleeve of the spring fixing block at two ends of the tension spring is connected with the eccentric block through a pin and can do rotary motion around the pin.
2. The tension spring coupled homodromous multiple excitation motor device according to claim 1, wherein in the installation process, tension springs on two sides are in an original length state; after the installation, the locking nuts on the locking threaded rods are adjusted to ensure that the tension springs at the front side and the rear side keep certain pretension; in the synchronization process, the tension forces of the tension springs at the two sides are alternately changed, so that the stress states of the tension springs at the two sides are consistent, the phases of a plurality of vibration motors rotating in the same direction are synchronous at 0 degrees, the directions of the generated vibration forces are the same, and the resultant force of the vibration forces is maximum.
3. The tension spring coupled co-rotating multi-excitation motor device according to claim 1, wherein when the device is applied to vibration machines such as a vibrating screen, after three excitation motors are started and stably operated, only one of the excitation motors is electrified, and the rest of the excitation motors are powered off, the device can still keep stable operation, and vibration parameters are basically the same as those of all the excitation motors when the excitation motors are electrified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810496543.5A CN108554802B (en) | 2018-05-22 | 2018-05-22 | Tension spring coupled homodromous rotary multi-excitation motor device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810496543.5A CN108554802B (en) | 2018-05-22 | 2018-05-22 | Tension spring coupled homodromous rotary multi-excitation motor device |
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| Publication Number | Publication Date |
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| CN108554802A CN108554802A (en) | 2018-09-21 |
| CN108554802B true CN108554802B (en) | 2023-08-01 |
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| CN201810496543.5A Active CN108554802B (en) | 2018-05-22 | 2018-05-22 | Tension spring coupled homodromous rotary multi-excitation motor device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113125140B (en) * | 2021-04-26 | 2022-02-11 | 中国矿业大学(北京) | Elastomer coupling dynamic characteristic experimental device and system |
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| CN110639808A (en) * | 2019-10-18 | 2020-01-03 | 长江大学 | Adjusting eccentric block capable of realizing double-track motion of vibrating screen |
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| AUPQ931100A0 (en) * | 2000-08-09 | 2000-08-31 | Ludowici Mineral Processing Equipment Pty Ltd | Screening apparatus |
| CN2520216Y (en) * | 2002-01-28 | 2002-11-13 | 西南石油学院 | Energy-saving multi-motor unbalanced-throw vibration screen |
| CN2741673Y (en) * | 2004-10-10 | 2005-11-23 | 西南石油学院 | Multiple motor exciting vibration multiple vibration type self synchronous vibrative sieve |
| CN2868452Y (en) * | 2005-11-23 | 2007-02-14 | 西南石油学院 | Three-motor full-vibration type self-synchronous oscillating screen |
| CN201380156Y (en) * | 2009-03-25 | 2010-01-13 | 宝鸡翌东石油机械厂 | Linear vibrating screen |
| WO2014171416A1 (en) * | 2013-04-15 | 2014-10-23 | 株式会社キンキ | Vibration generation device |
| CN103240222B (en) * | 2013-04-28 | 2015-04-08 | 中国矿业大学 | Large synchronous hyperstatic net-beam vibrating screen |
| CN103909061A (en) * | 2014-04-22 | 2014-07-09 | 西南石油大学 | Translation elliptical vibrating screen with three short shock excitation motors |
| CN104759409B (en) * | 2015-05-07 | 2016-09-14 | 西南石油大学 | Three shock electric machine elliptically vibrating screens based on Elastic Coupling |
| CN206064814U (en) * | 2016-08-25 | 2017-04-05 | 西南石油大学 | Three short shock electric machine elliptically vibrating screens of torsionspring coupling |
| CN106423848B (en) * | 2016-12-01 | 2018-10-12 | 西南石油大学 | Four short shock electric machine linear vibrating screens of torsionspring coupling |
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Patent Citations (2)
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| WO2016101320A1 (en) * | 2014-12-26 | 2016-06-30 | 中车北京二七机车有限公司 | Railway track stabilizing device |
| CN110639808A (en) * | 2019-10-18 | 2020-01-03 | 长江大学 | Adjusting eccentric block capable of realizing double-track motion of vibrating screen |
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| CN108554802A (en) | 2018-09-21 |
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