CN217094416U - Vibrating motor drive list source high-frequency vibration mesh screen that shakes - Google Patents
Vibrating motor drive list source high-frequency vibration mesh screen that shakes Download PDFInfo
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- CN217094416U CN217094416U CN202121454970.0U CN202121454970U CN217094416U CN 217094416 U CN217094416 U CN 217094416U CN 202121454970 U CN202121454970 U CN 202121454970U CN 217094416 U CN217094416 U CN 217094416U
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Abstract
The utility model discloses a vibrating motor-driven single-vibration-source high-frequency vibrating mesh screen, which belongs to the technical field of vibrating mesh screens and comprises a screen frame; the vibrating screen comprises a screen mesh fixedly connected to a screen frame, and two vibrating caps symmetrically arranged below the screen mesh; the driving assembly is arranged in the screen frame and is connected with the two vibrating caps; and a driver located at one side outside the screen frame; wherein, the driver drives the drive assembly to rotate, and then the drive assembly drives the two vibrating caps to strike the screen cloth in turn and alternately. The utility model discloses a two vibration caps, a driver can make two vibration caps do reciprocating motion from top to bottom simultaneously promptly, and two vibration caps beat the screen cloth in turn in proper order for the screen cloth produces high-frequency vibration.
Description
Technical Field
The utility model belongs to the technical field of the vibration mesh screen, in particular to vibrating motor drive list shakes source high-frequency vibration mesh screen.
Background
The high-frequency vibration mesh screen is a commonly used screening device in the industries of mines, chemical industry, food and the like, has the characteristics of high screening efficiency, strong production capacity and the like, particularly has a very good effect on screening fine particles and ultrafine particles, and is widely applied to screening and grading materials. The existing high-frequency vibration mesh screen mainly uses an electromagnetic vibration exciter to act as a vibration source, and drives a vibration system to vibrate in a reciprocating manner, so that the mesh screen is knocked, the electromagnetic vibrator of the structure is complex in structure, high in processing precision, high in manufacturing cost, high in assembly requirement, and high in maintenance cost, and meanwhile, a rubber spring is easy to age, a coil is easy to burn out, faults such as the force transmission screw rod is easy to break are frequent, and secondly, the electromagnetic vibrator can only drive a group of vibration caps to knock the mesh screen, so that more vibration excitation systems are needed to knock the mesh screen at multiple points, and the price of equipment is high. And other high-frequency vibration sieves are simple linear vibration sieves, are provided with a single vibration motor to drive the whole sieving machine to vibrate linearly or circularly, and have high requirement on structural rigidity of the whole sieving machine, small vibration amplitude and low sieving efficiency.
SUMMERY OF THE UTILITY MODEL
To the whole sharp or circular vibration of making of above-mentioned single vibrating motor drive sieve machine, complete machine structural rigidity requires highly, and the vibration amplitude is little, the problem that screening efficiency is low, the utility model provides a vibrating motor drive list shakes source high-frequency vibration mesh screen.
The utility model discloses a vibrating motor-driven single-vibration-source high-frequency vibrating mesh screen, which comprises a screen frame;
the screen is fixedly connected to the screen frame;
the two vibration caps are symmetrically arranged below the screen;
the driving assembly is arranged in the screen frame and is connected with the two vibrating caps; and
the driver is positioned on one side outside the screen frame;
the driver drives the driving assembly to rotate, and then the driving assembly drives the two vibrating caps to sequentially and alternately knock the screen.
Preferably, drive assembly includes that center pin and interval parallel arrangement are in two at least vibration arms on the center pin, just center pin one end with reel inner wall one end is connected, and the other end passes the relative one end of reel inner wall with the driver is connected, the one end and one of vibration arm vibration cap fixed connection, the other end and another vibration cap fixed connection.
Preferably, one end of the screen frame is provided with a first spring seat, the opposite end of the screen frame is provided with a second spring seat, a first torsion spring is arranged in the first spring seat, a second torsion spring is arranged in the second spring seat, one end of the central shaft penetrates through the first spring seat to be rotatably connected with the second spring seat, and the first torsion spring and the second torsion spring are connected with the central shaft.
Preferably, the driver is a vibration motor, the vibration motor is fixedly connected with one end of the central shaft penetrating through the screen frame, a rotating plate is fixedly connected with one end of the central shaft, a connecting plate is fixedly connected to the vibration motor, and the rotating plate is fixedly connected with the connecting plate through a connecting piece.
Preferably, the two ends of the rotating shaft of the vibration motor are provided with eccentric blocks, the two eccentric blocks are respectively positioned at the two sides of the connecting plate, and the phase angle is 180 degrees.
Preferably, the working frequency of the vibration motor is 750-6000 r/min.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model adopts two vibrating caps, namely, one driver can simultaneously make the two vibrating caps do up-and-down reciprocating motion, and the two vibrating caps sequentially and alternately strike the screen mesh to make the screen mesh generate high-frequency vibration;
2. the utility model discloses well vibrating motor and center pin connection, and vibrating motor's axis of rotation both ends all are equipped with the eccentric block, and two eccentric blocks equal to the distance at center pin center, and the phase angle is 180 settings, so when vibrating motor during operation, two eccentric blocks all produce centrifugal force and centrifugal force opposite direction between them, so form the moment of torsion between two eccentric blocks and the center pin, vibrating motor not only can make the center pin vibrate promptly, can make the center pin do torsional motion moreover.
Drawings
Fig. 1 is a schematic view of a vibrating mesh screen according to the present invention;
fig. 2 is a sectional view showing the structure of a vibrating screen according to the present invention;
fig. 3 is a schematic top view of a vibrating mesh screen according to the present invention;
fig. 4 is a right sectional view of the vibrating screen according to the present invention;
fig. 5 is a right sectional view of the vibration motor according to the present invention;
FIG. 6 is a schematic diagram of the right-view force analysis of the vibration motor of the present invention;
FIG. 7 is a schematic view of the vibration motor according to the present invention;
fig. 8 is a schematic view of the force analysis of the vibration motor at another angle from the front view in the present invention;
fig. 9 is another angle force analysis schematic diagram of the main view of the middle vibration motor of the present invention.
Reference numerals
1. A screen frame; 2. a drive assembly; 3. screening a screen; 4. a vibrating cap; 5. a driver; 21. a central shaft; 22. a vibrating arm; 23. a second spring seat; 24. a second torsion spring; 25. a first spring seat; 26. a first torsion spring; 27. a rotating plate; 51. an eccentric block; 52. a connecting plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in 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.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1, the utility model discloses a vibrating motor-driven single-vibration-source high-frequency vibrating mesh screen, which comprises a screen frame 1;
a screen 3 fixedly connected to the screen frame 1;
two vibration caps 4 symmetrically arranged below the screen 3;
the driving assembly 2 is arranged in the screen frame 1, and the driving assembly 2 is connected with the two vibrating caps 4; and
a driver 5 positioned at one side outside the screen frame 1;
wherein, driver 5 drive assembly 2 rotates, and then drive assembly 2 drive two vibration caps 4 and strike screen cloth 3 in turn.
Further, the screen frame 1 includes two first side plates and two second side plates, and the height of the first side plates is greater than the height of the second side plates. Taking fig. 1 as an example, the first side plate is a left side plate and a right side plate, and the second side plate is a front side plate and a rear side plate, respectively, and the screen 3 can be limited between the left side plate and the right side plate by the above arrangement.
Referring to fig. 2 and 3, the driving assembly 2 includes a central shaft 21 and at least two vibration arms 22 spaced apart from and arranged in parallel on the central shaft 21, and one end of the central shaft 21 is connected to one end of the inner wall of the screen frame 1, and the other end of the central shaft passes through the opposite end of the inner wall of the screen frame 1 and is connected to the driver 5, one end of the vibration arm is fixedly connected to one vibration cap 4, and the other end of the vibration arm is fixedly connected to the other vibration cap 4.
Further, one end of the screen frame 1 is provided with a first spring seat 25, the opposite end is provided with a second spring seat 23, a first torsion spring 26 is arranged in the first spring seat 25, a second torsion spring 24 is arranged in the second spring seat 23, one end of the central shaft 21 penetrates through the first spring seat 25 to be rotatably connected with the second spring seat 23, and the first torsion spring 26 and the second torsion spring 24 are both connected with the central shaft 21.
Referring to fig. 4, the central shaft 21 and the vibration arm 22 are integrally formed, and are of an integral structure, and two ends of the vibration arm 22 are connected to the vibration cap 4 through bolts or screws.
Specifically, the two vibration caps 4 are in a symmetrical state along the central axis 21, and both the vibration caps 4 are in contact with the mesh 3 when the central axis 21 is in an initial state.
With continued reference to fig. 1, 2 and 5, the driver 5 is a vibration motor, the vibration motor is fixedly connected with one end of the central shaft 21 penetrating through the screen frame 1, a rotating plate 27 is fixedly connected with one end of the central shaft 21, a connecting plate 52 is fixedly connected with the vibration motor, and the rotating plate 27 and the connecting plate 52 are fixedly connected through a connecting piece.
Specifically, the connecting member is a bolt or a screw. Through the above mechanism, the vibration motor is connected to the central shaft 21, and the vibration motor can drive the central shaft 21 to move.
Referring to fig. 4 and 5, eccentric blocks 51 are provided at both ends of the rotation shaft of the vibration motor, and the two eccentric blocks 51 are respectively located at both sides of the connection plate 52 with a phase angle of 180 °.
Specifically, the two eccentric masses 51 are equidistant from the center of the central shaft 21, and the two eccentric masses 51 are arranged in opposite directions with a phase angle difference of 180 °.
Further, the working frequency of the vibration motor is 750-6000 r/min.
Referring to fig. 6, coordinate axes are established on a vibration motor, which is a motorThe rotating shaft of the X-axis and the X-axis are horizontally arranged; the plane XOY is parallel to the plane of the right side plate of the screen frame 1 and the central axis 21 passes through the Z-axis. According to the structure, the working rotating speed N of the vibration motor is 750-6000r/min, and when the vibration motor rotates, the frequency f generated by the two eccentric blocks 51 in the XOY plane is N/60, namely 12.5-100 Hz. When the vibration motor rotates, the resultant force of the centrifugal forces generated by the two eccentric masses 51 forms a reciprocating torsional moment M with the centrifugal moment r in the XOY plane 1 ，
M 1 ＝Fr*cos(ωt)，ω＝2πf；
Fr is the resultant of the centrifugal forces of the two eccentric masses 51.
Further, the torsional moment M 1 And the torsional rigidity K of the torsional spring form an elastic system, so that the central shaft 21 generates reciprocating torsional vibration, the vibration arm 22 is driven, the vibration cap 4 performs high-frequency reciprocating torsional motion, and the reciprocating vibration cap 4 directly strikes the screen 3 to generate high-frequency vibration on the screen 3.
Referring to fig. 7 to 9, force analysis diagrams of the eccentric mass 51 are shown when ω t is 0 °, 45 °, and 90 °, respectively. When the vibration motor rotates, the resultant force of the centrifugal forces generated by the two eccentric masses 51 forms a reciprocating torsional moment M with the centrifugal moment r in the XOZ plane 2 ,
M 2 ＝Fr*sin(ωt)，ω＝2πf；
Fr is the resultant of the centrifugal forces of the two eccentric masses 51.
Further, the torsional moment M 2 Is not in the same direction as the stiffness K of the torsion spring, so that no reciprocating torsional movement is generated, but some oscillation is generated, which can be eliminated to a certain extent by setting the compression stiffness of the torsion spring.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a vibrating motor drive list source high frequency vibration mesh screen that shakes which characterized in that includes:
a screen frame;
the screen is fixedly connected to the screen frame;
the two vibration caps are symmetrically arranged below the screen;
the driving assembly is arranged in the screen frame and is connected with the two vibrating caps; and
the driver is positioned on one side outside the screen frame;
the driver drives the driving assembly to rotate, and then the driving assembly drives the two vibrating caps to sequentially and alternately knock the screen.
2. The vibration motor driven single vibration source high frequency vibration screen as claimed in claim 1, wherein said driving assembly comprises a central shaft and at least two vibration arms spaced apart and arranged in parallel on said central shaft, and said central shaft is connected at one end to one end of said inner wall of said screen frame and at the other end to said driver through the opposite end of said inner wall of said screen frame, and said vibration arms are fixedly connected at one end to one of said vibration caps and at the other end to the other of said vibration caps.
3. A vibration motor driven single source high frequency vibration screen as claimed in claim 2, wherein said screen frame has a first spring seat at one end and a second spring seat at the opposite end, said first spring seat having a first torsion spring disposed therein, said second spring seat having a second torsion spring disposed therein, and said one end of said central shaft passing through said first spring seat and rotatably connected to said second spring seat, and said first torsion spring and said second torsion spring are both connected to said central shaft.
4. The vibration motor driven single vibration source high frequency vibration screen as claimed in claim 3, wherein said driver is a vibration motor, said vibration motor is fixedly connected with one end of said central shaft passing through said screen frame, and one end of said central shaft is fixedly connected with a rotation plate, said vibration motor is fixedly connected with a connection plate, said rotation plate and said connection plate are fixedly connected through a connection member.
5. The vibration motor driven single vibration source high frequency vibration screen as claimed in claim 4, wherein said vibration motor has eccentric masses at both ends of the rotation shaft, and said eccentric masses are respectively located at both sides of said connecting plate and have a phase angle of 180 °.
6. The vibration motor driven single vibration source high frequency vibration mesh screen of claim 5, wherein the working frequency of the vibration motor is 750-.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121454970.0U CN217094416U (en) | 2021-06-29 | 2021-06-29 | Vibrating motor drive list source high-frequency vibration mesh screen that shakes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121454970.0U CN217094416U (en) | 2021-06-29 | 2021-06-29 | Vibrating motor drive list source high-frequency vibration mesh screen that shakes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217094416U true CN217094416U (en) | 2022-08-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121454970.0U Active CN217094416U (en) | 2021-06-29 | 2021-06-29 | Vibrating motor drive list source high-frequency vibration mesh screen that shakes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217094416U (en) |
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2021
- 2021-06-29 CN CN202121454970.0U patent/CN217094416U/en active Active
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