CN201862547U - Multi-level eccentric block exciter - Google Patents
Multi-level eccentric block exciter Download PDFInfo
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- CN201862547U CN201862547U CN2010201261665U CN201020126166U CN201862547U CN 201862547 U CN201862547 U CN 201862547U CN 2010201261665 U CN2010201261665 U CN 2010201261665U CN 201020126166 U CN201020126166 U CN 201020126166U CN 201862547 U CN201862547 U CN 201862547U
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- eccentric block
- level
- side piece
- multistage eccentric
- exciter
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Abstract
The utility model relates to a multi-level eccentric block exciter, which has a special inertia shock excitation capability. The multi-level eccentric block exciter comprises multi-level eccentric block assemblies, an exciter shaft, an exciter base and a bearing A, wherein the exciter shaft is a first-level shaft; the first-level shaft is arranged on the exciter base by the bearing; the left end and the right end of the first-level shaft are respectively provided with a group of multi-level eccentric block assemblies which are arranged symmetrically; each multi-level eccentric block assembly is formed by connecting a plurality of eccentric blocks in series by eccentric block shafts; each multi-level eccentric block assembly comprises a main eccentric block, an assistant eccentric block, a multi-level eccentric block, a multi-level eccentric block shaft and a multi-level bearing, wherein the main eccentric block and the assistant eccentric block are both first-level eccentric blocks and are respectively and fixedly arranged on the first-level shaft by a key and a locking bolt; the k-level eccentric block shafts are respectively and fixedly arranged on the (k-1)-level eccentric blocks by the k-level bearings; the k-level eccentric blocks are arranged on the k-level eccentric block shafts respectively by the k-level bearings; and the assistant eccentric blocks can be used for adjusting the relative angles of the main eccentric blocks and the assistant eccentric blocks by the locking bolt.
Description
Technical field
What the utility model multistage eccentric block exciter related to is a kind of multistage eccentric block (hereinafter to be referred as inclined to one side piece) vibrator, is a kind of vibrator with special inertial excitation ability, belongs to vibration and utilizes field of engineering technology.
Background technology
Vibrator is the exciting source that forces system to carry out continuous mechanical oscillation by artificial given frequency, generally be divided into machinery, electronics two big classes, mechanical vibration exciter is divided into by whether containing power source again: the vibrator that contains power source is a vibrating motor, be to utilize the mechanical oscillation principle to drive the exciting source equipment of vibrating machine work, be power source be again exciting source; The vibrator that does not contain power source is common vibrator, can realize moving by shaft coupling with power source such as common motor or engine and the transmission of power.
Common vibrator is the two ends in its rotating shaft, two groups of inclined to one side pieces are housed respectively form exciting source, every group of 2 of inclined to one side piece is respectively major and minor inclined to one side piece, and shape often is fan-shaped, major and minor inclined to one side piece all is consolidated on the exciter shaft, is called single axle inertial excitation device or one-level eccentric block exciter.Vibrator during revolution is because the centrifugal action of inclined to one side piece produces the exciting force that along the circumferential direction changes, drive the vibrating machine system and produce vibration, maximum exciting force can be adjusted the inclined to one side piece relative angle of axle head major-minor according to the load needs, and its vibration frequency can keep basicly stable in the running of setting back.
Common vibrator has advantages such as exciting force is adjustable before the start, volume is little, in light weight, simple in structure, working service is convenient, is applied so utilize in the engineering in much vibrating machines or vibration in recent years.
Under many circumstances, the vibration that vibrating machine needs system to produce in the course of the work, have multifrequency several, wide power spectrum curve or some irregular performance of movement locus, finish some special job contents,, card sieve low excessively, harden as the screening percentage of vibrating scalper; The not refinement of vibrating mill powder, easily reunion, the anti-pulverizing; The improper motion of material bonding, arch camber, delay in the bulkhead vibration work of various feed bins, hopper, chute; The mixture homogeneity that some various materials is mixed in the vibration batch mixer is not high, mixing efficiency is crossed problems such as low, and common vibrator almost is helpless for the solution of these problems.
Summary of the invention
The purpose of this utility model is at above-mentioned deficiency, a kind of multistage eccentric block exciter with some special vibrating effect is provided, make system can realize the power spectrum of broad, maybe can finish some irregular performance of movement locus, realize the job content that these are special.
The utility model is on the basis of common (or claiming one-level inclined to one side piece) vibrator, a plurality of inclined to one side block assemblies are connected in series, serial connection progression k is subjected to structural limitations, generally not producing mutual interference with each moving link is principle, desirable k=2,3 ... be called two, three ... the level eccentric block exciter, the institution freedom number of degrees after the serial connection equal inclined to one side piece progression, and k 〉=2 o'clock are referred to as multistage eccentric block exciter.
Multistage eccentric block exciter is to take following technical scheme to realize:
Multistage eccentric block exciter comprises multistage (more than the secondary), and block assembly, exciter shaft are primary axis, vibrator base and bearing A partially; Primary axis is installed on the vibrator seat by its bearing, and respectively there is one group of multistage eccentric block assembly at the left and right two ends of primary axis, are symmetric arrangement, and inclined to one side piece cover is equipped with in multistage eccentric block assembly outside, respectively with about partially block assembly all cover the safety when guaranteeing running.
Described multistage eccentric block assembly is connected in series by inclined to one side piece axle by a plurality of inclined to one side pieces and constitutes, the multistage eccentric block assembly comprises main inclined to one side piece, secondary piece, multistage eccentric block, multistage eccentric block axle and multistage eccentric block bearing (with expressions such as A, B, C) partially, main inclined to one side piece, secondary piece partially are the inclined to one side piece of one-level, main inclined to one side piece, secondary piece partially are fixedly mounted on the primary axis by key, clamping screw respectively, secondary piece partially also can be adjusted the inclined to one side piece relative angle of major-minor by clamping screw, and then changes the size of exciting force.The inclined to one side piece axle of k level is installed on the inclined to one side piece of k-1 level by k level bearing fixing respectively, and the inclined to one side piece of k level is contained in respectively on the inclined to one side piece axle of k level by k level bearing, and free to rotate and be not subjected to the influence of armature spindle.Described k is inclined to one side piece serial connection progression.
Described multistage eccentric block modular construction principle is that example is illustrated with the inclined to one side block assembly of secondary:
The inclined to one side block assembly of secondary comprises that main inclined to one side piece, secondary piece partially are the inclined to one side piece of one-level, the inclined to one side piece axle of secondary, the inclined to one side piece of secondary etc.Primary axis is supported in the vibrator by two bearing A, and the inclined to one side block structure at its two ends, left and right sides is symmetric arrangement; On the secondary inclined to one side piece rotating secondary axle is housed, the inclined to one side piece of secondary axle and secondary links by clamping screw, forms the inclined to one side block assembly of secondary.Because the rotational freedom of the inclined to one side piece of secondary is unrestricted, so constitute the 2DOF vibrator.
In actual moving process, because the speed that work system itself has, acceleration fluctuation, make the centroid position of the inclined to one side piece of I and II change complicated in the space, can adopt control system that it is carried out the control of the frequency width of cloth, the performance parameter such as amplitude, exciting force, oscillation intensity of system is changed, to realize some irregular performance of wide power spectrum or movement locus, as realizing special inertia properties such as transient state or the large amplitude on certain short time interval, big exciting force, big oscillation intensity.
The structure difference of three grades of inclined to one side block assemblies and the inclined to one side block assembly of secondary shows as: rotating three grades of axles are housed in the end of the inclined to one side piece of secondary, three grades of axles and three grades of inclined to one side pieces link by clamping screw, form three grades of inclined to one side block assemblies, constitute the 3DOF vibrator, this moment, inclined to one side pieces at different levels changed more complicated at the centroid position in space, parameter values such as the amplitude that produces, exciting force, oscillation intensity may be bigger, and special inertia properties is more obvious.Be connected in series level Four axle, the inclined to one side piece of level Four like this again, form the inclined to one side block assembly of level Four, constitute the 4DOF vibrator.
In addition, parameter maximum, action times such as amplitude, exciting force, oscillation intensity are also relevant with the factors such as rule that the eccentric throw of inclined to one side piece barycenter at different levels, inclined to one side piece quality, transient speed, speed and the acceleration of vibrator fluctuate, consequent vibration has several characteristics of multifrequency, be that synchronization has a plurality of frequencies and amplitude to act on system, be equivalent to the resultant vibration of a plurality of frequencies and amplitude.
The realization of the above-mentioned performance of the utility model multistage eccentric block exciter, some the work resistance barrier for overcoming vibrating machine solves some key technology of vibrating machine or the bottleneck problem of restriction development, as low excessively, the card sieve of screening percentage of vibrating scalper; The not refinement of vibrating mill micro mist, easily reunion; The mixture homogeneity that some various materials is mixed in the vibration batch mixer is not high, mixing efficiency is low excessively; The problems such as improper motion of material bonding, arch camber, delay have tangible engineering effort and significance of application in the bulkhead vibration work of various feed bins, hopper, chute.
Need to prove: the multistage eccentric block assembly at two ends, the primary axis left and right sides also can be limited asymmetric arrangement, this moment is except the variation characteristic of above-mentioned kinetic parameter, also can add and produce a turning torque along the primary axis plane, this for some performance that improves some vibrating machine as: it is useful to the zonation of mixture homogeneity, the vibromill ultra-fine grinding that narrows etc. to improve the vibration batch mixer, but the turning torque size of asymmetric amount or generation should be controlled, otherwise will have side effects.
Description of drawings
Fig. 1 is a secondary eccentric block exciter mechanism principle schematic diagram of the present utility model.The number in the figure name is called: 1, baffle ring, 2, end cap, 3, sealing ring, 4, main inclined to one side piece, 5, secondary piece partially, 6, the inclined to one side piece of secondary, 7, the secondary axle, 8, axle bumper, 9, the between centers ring, 10, piece cover partially, 11, the vibrator seat, 12, primary axis, 13, bearing A.
Fig. 2 is an inclined to one side block assembly structural representation of the present utility model.Number in the figure title: clamping screw 14, clamping screw 15.
Fig. 3,4 is respectively two, three grades of inclined to one side block mechanism schematic diagrams of the present utility model, member I ', I, II, III, 11 are respectively secondary piece, one, two, three inclined to one side piece and vibrator seat partially among the figure, and 0, A, the B center of rotation, A ', B ', C ', the A0 ' that are respectively one, two, three inclined to one side piece be respectively main inclined to one side piece 4, two, three grades of inclined to one side pieces and secondary barycenter of piece partially.
The specific embodiment
With reference to accompanying drawing 1～4, multistage eccentric block exciter comprises that multistage eccentric block assembly, exciter shaft are primary axis 12, vibrator seat 11 and bearing A 13 etc.Primary axis 12 is installed on the vibrator seat 11 by two bearings A 13, and the multistage eccentric block assembly is equipped with at primary axis 12 two ends, and the multistage eccentric block assembly at two ends, the left and right sides is symmetric arrangement, and inclined to one side piece cover 10 is equipped with in multistage eccentric block assembly outside.
Described multistage eccentric block assembly comprises main inclined to one side piece 4, secondary piece 5, multistage eccentric block, multistage eccentric block axle and multistage eccentric block bearing (with expressions such as A, B, C) partially, main inclined to one side piece 4, secondary piece 5 partially are the inclined to one side piece of one-level, main inclined to one side piece 4 and secondary piece 5 partially are fixedly mounted on the primary axis 12 by key, clamping screw 14,15 respectively, can adjust relative angle between the major and minor inclined to one side piece by clamping screw, realize the adjusting of required exciting force; The inclined to one side piece axle of k level is installed on the inclined to one side piece of k-1 level by k level bearing fixing respectively, and the inclined to one side piece of k level is contained in respectively on the inclined to one side piece axle of k level by k level bearing.
Described multistage eccentric block assembly progression should be k 〉=2.
Described multistage eccentric block assembly is provided with the inclined to one side block assembly of secondary at least.
Described multistage eccentric block assembly is connected in series by inclined to one side piece axle by a plurality of inclined to one side pieces and constitutes.
The inclined to one side piece of described master combines as a whole by key or clamping screw and primary axis, and secondary piece is partially adjusted the relative angle of major and minor inclined to one side piece by clamping screw.
Inclined to one side piece cover is equipped with in described multistage eccentric block assembly outside.
Sealing ring 3 by being bolted on the vibrator seat 11, is equipped with between described end cap 2 and the primary axis 12 by end cap 2 in described vibrator seat 11 two ends.
As shown in Figure 1, the utility model is made up of vibrator pedestal part and left avertence piece part, right avertence piece part.
Since about partially the piece part is general is symmetrically distributed, so only the left avertence piece is partly stated it in the specific embodiment; Still because symmetry, during motion about partially the piece part realize easily that synchronously idol has nonsynchronous in short-term situation, then the axial moment of couple of Chan Shenging is fully in system's tolerance range.
When the major and minor inclined to one side piece of primary axis 12 drives rotates, the inclined to one side piece 6 of secondary can relatively rotate with major and minor inclined to one side piece under the effect of the inertia force that complexity changes, its centroid position is changed, cause total inertia force, exciting force, amplitude and the oscillation intensity of system to change; Again because the velocity perturbation that load system self produces, and system can be by the control of frequency-changing control system, the vibration that system is produced has several characteristics of multifrequency, can realize the power spectrum of broad or realize some irregular performance of movement locus, as realizing special inertia properties such as transient state or the large amplitude on certain short time interval, big exciting force, big oscillation intensity.
Main feature of the present utility model is that parameter variation ranges such as exciting force, amplitude, frequency, oscillation intensity are big, can control effectively to its size, action time by frequency-changing control system.
The utility model can be used for the bulkhead vibration of various feed bins, hopper, chute in the vibrating machine, to prevent material bonding, arch camber, delay, impels the material proper motion; Can be used for linear vibrating screen, probability screen, revolve the sieve that shakes, various vibrating machines such as oscillating feeder, vibratory feed unit, jigging conveyer, vibrator, vibrating head grinding machine, planetary ball mill make exciting source and power source, make system produce the power spectrum of broad, realize the demand of special inertia properties such as system motion some irregular performance of track such as large amplitude, big exciting force, big oscillation intensity, more effectively finish the various special operation contents and the job requirements of system.
Claims (5)
1. a multistage eccentric block exciter is characterized in that comprising that multistage eccentric block assembly, exciter shaft are primary axis, vibrator base and bearing A; Primary axis is installed on the vibrator seat by its bearing, and respectively there is one group of multistage eccentric block assembly at two ends, the primary axis left and right sides, are symmetric arrangement;
Described multistage eccentric block assembly is connected in series by inclined to one side piece axle by a plurality of inclined to one side pieces and constitutes, the multistage eccentric block assembly comprises main inclined to one side piece, secondary piece, multistage eccentric block, multistage eccentric block axle and multistage eccentric block bearing partially, main inclined to one side piece, secondary piece partially are the inclined to one side piece of one-level, main inclined to one side piece is fixedly mounted on the primary axis by key, clamping screw, secondary piece partially is fixedly mounted on the primary axis by key, clamping screw, the inclined to one side piece axle of k level is installed on the inclined to one side piece of k-1 level by k level bearing fixing respectively, and the inclined to one side piece of k level is contained in respectively on the inclined to one side piece axle of k level by k level bearing;
Described k is inclined to one side piece serial connection progression, and described multistage eccentric block assembly progression should be k 〉=2.
2. multistage eccentric block exciter according to claim 1 is characterized in that described multistage eccentric block assembly is provided with the inclined to one side block assembly of secondary at least.
3. multistage eccentric block exciter according to claim 1 is characterized in that the inclined to one side piece of described pair adjusts the relative angle of major and minor inclined to one side piece by clamping screw.
4. multistage eccentric block exciter according to claim 1 is characterized in that described multistage eccentric block assembly outside is equipped with inclined to one side piece cover.
5. multistage eccentric block exciter according to claim 1, it is characterized in that described vibrator seat two ends by end cap by being bolted on the vibrator seat, between described end cap and the primary axis sealing ring is housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201261665U CN201862547U (en) | 2010-03-08 | 2010-03-08 | Multi-level eccentric block exciter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201261665U CN201862547U (en) | 2010-03-08 | 2010-03-08 | Multi-level eccentric block exciter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201862547U true CN201862547U (en) | 2011-06-15 |
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ID=44133715
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201261665U Expired - Lifetime CN201862547U (en) | 2010-03-08 | 2010-03-08 | Multi-level eccentric block exciter |
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| Country | Link |
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| CN (1) | CN201862547U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101773908A (en) * | 2010-03-08 | 2010-07-14 | 南京工程学院 | Multistage eccentric block exciter |
| CN102962190A (en) * | 2012-12-24 | 2013-03-13 | 中联重科股份有限公司 | Self-synchronous vibrating screen and eccentric block thereof |
| CN108097567A (en) * | 2017-12-20 | 2018-06-01 | 江贵生 | Stepless frequency conversion exciter apparatus |
-
2010
- 2010-03-08 CN CN2010201261665U patent/CN201862547U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101773908A (en) * | 2010-03-08 | 2010-07-14 | 南京工程学院 | Multistage eccentric block exciter |
| CN102962190A (en) * | 2012-12-24 | 2013-03-13 | 中联重科股份有限公司 | Self-synchronous vibrating screen and eccentric block thereof |
| CN102962190B (en) * | 2012-12-24 | 2015-09-16 | 中联重科股份有限公司 | Self-synchronizing vibrating screen and eccentric block thereof |
| CN108097567A (en) * | 2017-12-20 | 2018-06-01 | 江贵生 | Stepless frequency conversion exciter apparatus |
| CN108097567B (en) * | 2017-12-20 | 2021-05-28 | 安庆师范大学 | Stepless frequency conversion vibration exciter device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110615 Effective date of abandoning: 20111214 |