CN115992863A - Damping device for dewatering screen - Google Patents
Damping device for dewatering screen Download PDFInfo
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- CN115992863A CN115992863A CN202310174107.7A CN202310174107A CN115992863A CN 115992863 A CN115992863 A CN 115992863A CN 202310174107 A CN202310174107 A CN 202310174107A CN 115992863 A CN115992863 A CN 115992863A
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- damping
- dewatering screen
- base
- rod
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Abstract
The invention discloses a damping device of a dewatering screen, which comprises a connecting bolt, an exciting force transmission lug and a damping mechanism, wherein a connecting base is fixed on a top transverse plate of the dewatering screen through the connecting bolt; the damping vibration attenuation mechanism comprises a hoop, a bifurcation connecting rod, a stand column and a vibration absorption end, the hoop is sleeved and fastened on a connecting bolt, the bifurcation connecting rod comprises a curved rod and a plurality of bifurcation rods bifurcated from the front end part of the curved rod, each bifurcation rod is respectively fixed with the corresponding connecting bolt, and the rear end part of the curved rod is connected with the vibration absorption end. The invention has the advantages that: the exciting force transmission convex blocks at the bottom of the vibrator are matched with the mounting grooves on the top transverse plate, so that the transmission path of the exciting force is increased, and the vibration load born by each connecting bolt is reduced; the damping vibration reduction mechanisms are arranged on the connecting bolts of the connecting base to realize energy absorption and vibration reduction of vibration load on the connecting bolts.
Description
Technical Field
The invention belongs to dehydration treatment equipment, and particularly relates to a damping device of a dewatering screen.
Background
In the slurry treatment system, a dewatering screen is used for carrying out vibration dewatering on slurry, and the working principle of the dewatering screen is as follows: the dewatering screen uses a double-motor self-synchronization technology, two vibrators which are not connected are driven by a coupler to synchronously and reversely run, centrifugal forces generated by the two vibrators are overlapped to form an exciting force along the vibration direction, the screen box is enabled to do reciprocating linear motion, materials on the screen surface continuously jump forward under the action of the vibrating force and gravity, and materials and water smaller than the screen holes can penetrate the screen surface to achieve dewatering of slurry.
The vibrator on the dewatering screen adopts 8 bolted connection on the top diaphragm of dewatering screen (four respectively in front and back), but because vibration load is big reason, in the in-service use, the vibrator can shake the bolt that connects fixed to it to influence the normal work of dewatering screen.
Based on this phenomenon, a device capable of damping the connecting bolt on the vibrator is urgently needed by those skilled in the art without affecting the vibration force of the dewatering screen.
Disclosure of Invention
According to the defects of the prior art, the invention provides the damping device for the dewatering screen, which is characterized in that exciting force transmission convex blocks and mounting grooves are respectively arranged between a vibrator connecting base and a top transverse plate and are matched and mounted, so that the transmission path of the exciting force transmitted by connecting bolts is changed, and the vibration load born by the connecting bolts is reduced; and through setting up the damping vibration damping mechanism that has the knee lever on each connecting bolt of connection base in order to realize the energy-absorbing vibration damping to the vibration load on the connecting bolt, the knee lever form both can make when connecting inboard connecting bolt cross the vibrator top, also can effectively reduce vibration load.
The invention is realized by the following technical scheme:
the vibration damping device for the dewatering screen is arranged on a vibrator of the dewatering screen, and a shell of the vibrator and a connecting base arranged at the bottom of the shell are of an integrated structure, and is characterized by comprising a connecting bolt, an exciting force transmission lug and a damping vibration damping mechanism, wherein the connecting base is fixed on a top transverse plate of the dewatering screen through the connecting bolt, a mounting groove is formed in the top transverse plate, and the exciting force transmission lug is correspondingly assembled in the mounting groove; the damping vibration attenuation mechanism comprises a hoop, a bifurcation connecting rod and a vibration absorption end, the hoop is sleeved and fastened on the connecting bolt, the bifurcation connecting rod comprises a curved rod and a plurality of bifurcation rods bifurcated from the front end part of the curved rod, each bifurcation rod is respectively fixed with the corresponding hoop on the connecting bolt, and the rear end part of the curved rod is connected with the vibration absorption end.
The dimensions of the exciting force transmission protruding blocks are the same as those of the mounting grooves on the top transverse plate.
And a group of connecting bolts are respectively arranged on four side edge parts of the connecting base so as to fixedly connect the connecting base with the top transverse plate.
The four groups of connecting bolts on the connecting base are respectively connected with one damping vibration attenuation mechanism.
The bifurcated connecting rod in the damping vibration attenuation mechanism connected with the group of connecting bolts at the outer side of the connecting base is connected with the vibration absorption end in an arc-shaped curved rod mode;
the bifurcated connecting rod in the damping vibration attenuation mechanism connected with the group of connecting bolts on the inner side of the connecting base passes over the vibrator in an arc-shaped bent rod mode and is connected with the vibration absorption end.
The vibration absorbing end consists of a base, an energy absorbing spring and a mass block which are sequentially arranged from bottom to top, and the base is fixedly arranged on the ground outside the dewatering screen.
The invention has the advantages that: the vibration damping device of the dewatering screen is characterized in that exciting force transmission convex blocks and mounting grooves are respectively arranged between the vibrator connecting base and the top transverse plate and are matched and mounted, so that a transmission path for transmitting exciting force mainly through connecting bolts in the past is changed, and vibration load born by the connecting bolts is reduced; and through setting up the damping vibration damping mechanism that has the knee lever on each connecting bolt of connecting the base in order to realize the energy-absorbing vibration damping to the vibration load on the connecting bolt, the knee lever form that adopts both can make when connecting inboard connecting bolt cross the vibrator top and be connected with ground vibration absorbing end and not receive the jam, also can effectively reduce vibration load.
Drawings
FIG. 1 is a perspective view of a vibrator fixedly disposed on a top cross plate of a dewatering screen (a perspective view of the vibrator in a state in which a damping vibration reducing mechanism is not installed) according to the present invention;
FIG. 2 is a partial elevation detail of the fixed connection of the vibrator to the top cross plate of the dewatering screen of the present invention (a perspective view without the damping vibration attenuation mechanism);
FIG. 3 is a detail view of a partial plane of the vibrator fixedly attached to the top cross plate of the dewatering screen (a perspective view without a damping vibration attenuation mechanism);
FIG. 4 isbase:Sub>A cross-sectional view A-A of the present invention with the damping mechanism mounted in FIG. 2;
FIG. 5 is a plan view of a damping vibration attenuation mechanism in accordance with the present invention;
fig. 6 is a sectional view of the B-B of fig. 3 (in a state where the damping vibration reduction mechanism is not installed) according to the present invention.
Description of the embodiments
The features of the present invention and other related features are described in further detail below by way of example in conjunction with the following drawings, to facilitate understanding by those skilled in the art:
as shown in fig. 1-6, the labels in the figures are respectively: dewatering screen 1, top cross plate 2, mounting groove 21, vibrator 3, casing 31, connection base 32, reinforcing rib 33, exciting force transmission projection 34, connection bolt 4, connection bolt 41, connection bolt 42, connection bolt 43, damping vibration reduction mechanism 5, ferrule 51, split rod 52, knee rod 53, mass block 54, energy absorbing spring 55, damping vibration reduction mechanism 6, ferrule 61, split rod 62, knee rod 63, mass block 64, energy absorbing spring 65, base 7.
Examples: as shown in fig. 1 to 6, the present embodiment relates specifically to a damping device for a dewatering screen, which is mounted on a vibrator 3 of the dewatering screen 1, and includes a connecting bolt 4, an exciting force transmitting bump 34, and a damping and damping mechanism 6; the original two groups of connecting bolts 4 are additionally provided with four groups of connecting bolts 4, so that the connecting bolts 4 are added, and the vibration load born by each connecting bolt 4 is reduced; the exciting force transmission convex blocks 34 are additionally arranged on the connecting base 32 of the vibrator 3 and are matched and installed in the installation groove 21 of the top transverse plate 2, so that the exciting force transmission path between the connecting base 32 and the top transverse plate 2 is increased; the damping vibration reduction mechanism 6 is connected with each connecting bolt 4 to realize energy dissipation and vibration reduction of vibration load applied to the damping vibration reduction mechanism.
As shown in fig. 1-6, two vibrators 3 are mounted on the top transverse plate 2 of the dewatering screen 1, two vibrators 3 which are not connected are driven by a coupling to synchronously and reversely run, centrifugal forces generated by the two vibrators 3 are overlapped to form an exciting force along the vibrating direction, the screen box is enabled to do reciprocating linear motion, materials on the screen surface continuously jump forward under the action of the vibrating force and gravity, and therefore materials and water smaller than the screen holes can penetrate the screen surface to achieve dewatering of slurry. The casing 31 of the vibrator 3 and the connecting base 32 are integrally formed, and a plurality of stiffening ribs 33 are arranged between the casing 31 and the connecting base 32 to strengthen the integral structural property between the casing 31 and the connecting base 32. In order to increase the exciting force transmission path between the connection base 32 and the top transverse plate 2, a mounting groove 21 is correspondingly formed in the mounting position of the connection base 32 on the top transverse plate 2, the size of the mounting groove 21 is smaller than that of the connection base 32, and correspondingly, an exciting force transmission lug 34 protruding downwards is arranged on the ground of the connection base 32, the exciting force transmission lug 34 and the connection base 32 need to be in an integrated structure or a full-welded connection mode, and the size of the exciting force transmission lug 34 is identical with that of the mounting groove 21; when the connection base 32 is mounted on the top cross plate 2, the exciting force transmitting projections 34 are correspondingly fitted into the mounting grooves 21, so as to form a reliable exciting force transmitting path.
As shown in fig. 1-3, in this embodiment, two sets of connecting bolts 4 used in the past between the connecting base 32 and the top transverse plate 2 are added into four sets of connecting bolts 4, each set of connecting bolts 4 is distributed on four side edges of the connecting base 32, specifically, taking one vibrator 3 as an example, the vibrator comprises a connecting bolt 41 located at the outer side, a connecting bolt 43 located at the inner side and connecting bolts 42 located at the front and rear ends of the connecting base 32 respectively; by increasing the number of the connecting bolts 4, which is equivalent to reducing the vibration load borne by each connecting bolt 4 under the condition that the total exciting force is unchanged, the risk of vibration breaking of the connecting bolts 4 can be further reduced.
As shown in fig. 1-6, a damping vibration absorbing mechanism is respectively installed on each set of connecting bolts 4, for example, a damping vibration absorbing mechanism 5 is connected to the set of connecting bolts 41 located on the outer side, a damping vibration absorbing mechanism 6 is connected to the set of connecting bolts 43 located on the inner side, and damping vibration absorbing mechanisms are also connected to the two sets of connecting bolts 42 located on the front and rear ends (to avoid repeated display of similar structures, not shown in the figure). Wherein:
the damping vibration attenuation mechanism 5 comprises a hoop 51, a bifurcation connecting rod and a vibration absorption end which are sequentially arranged, the hoop 51 is sleeved and tightly clamped at the upper end part of the connecting bolt 41, and the hoop 51 is locked by a clamping bolt after being arranged on the connecting bolt 41 so as to realize tight and fixed connection between the hoop and the connecting bolt; the bifurcated link includes a curved bar 53 as a main bar portion and a plurality of bifurcated bars 52 bifurcated from the front end of the curved bar 53, as shown in fig. 5, each bifurcated bar 52 being respectively adapted to hinge with a ferrule 51 on a corresponding connection bolt 41 of the set, each connection bolt 41 being respectively connected with a bifurcated bar 52; the side view shape of the bifurcation link is an arc curved bar, through adopting the modeling of curved bar 53, the front end of bifurcation link can be connected with connecting bolt 41 on top diaphragm 2, the rear end is connected with the shock absorbing end on the ground, in order to adapt to the height difference between the two, the shock absorbing end needs to be arranged on the ground to avoid the vibration of dewatering screen 1, thus the height difference is unavoidable, and through adopting the form of curved bar 53 and the bifurcation bar 52 of its front end hinged with hoop 51, a lever type displacement amplification principle can be formed, thereby improving the energy absorption and vibration reduction capability of the shock absorbing end. The vibration absorbing end sequentially comprises a base 7, energy absorbing springs 55 and a mass block 54 from bottom to top, wherein the base 7 is fixedly arranged on the ground outside the dewatering screen 1, and a plurality of energy absorbing springs 55 are arranged between the mass block 54 and the base 7.
The damping vibration attenuation mechanism 6 comprises a hoop 61, a bifurcation connecting rod and a vibration absorption end which are sequentially arranged, and the main structure of the damping vibration attenuation mechanism is similar to that of the damping vibration attenuation mechanism 5 in the working principle; the main difference is the difference in the bifurcated connecting rod, which includes a curved rod 63 and a plurality of bifurcated rods 62 bifurcated from the front end of the curved rod 63; the curved bar 63 and the separate bars 62 are connected to the shock absorbing end on the ground by being connected to the inner connecting bolts 43 while passing over the casing 31 of the vibrator 3 by using the overall shape of the curved bar. The base 7 may be provided with a large support for a plurality of masses 54, 64, or a base 7 may be provided under each mass.
The damping vibration attenuation mechanism connected by the connecting bolts 42 at the two ends is similar to the damping vibration attenuation mechanism 5, and therefore will not be described in detail herein.
The advantages of this embodiment are: the vibration damping device of the dewatering screen is characterized in that exciting force transmission convex blocks and mounting grooves are respectively arranged between the vibrator connecting base and the top transverse plate and are matched and mounted, so that a transmission path for transmitting exciting force mainly through connecting bolts in the past is changed, and vibration load born by the connecting bolts is reduced; and through setting up the damping vibration damping mechanism that has the knee lever on each connecting bolt of connecting the base in order to realize the energy-absorbing vibration damping to the vibration load on the connecting bolt, the knee lever form that adopts both can make when connecting inboard connecting bolt cross the vibrator top and be connected with ground vibration absorbing end and not receive the jam, also can effectively reduce vibration load.
Claims (6)
1. The vibration damping device for the dewatering screen is arranged on a vibrator of the dewatering screen, and a shell of the vibrator and a connecting base arranged at the bottom of the shell are of an integrated structure, and is characterized by comprising a connecting bolt, an exciting force transmission lug and a damping vibration damping mechanism, wherein the connecting base is fixed on a top transverse plate of the dewatering screen through the connecting bolt, a mounting groove is formed in the top transverse plate, and the exciting force transmission lug is correspondingly assembled in the mounting groove; the damping vibration attenuation mechanism comprises a hoop, a bifurcation connecting rod and a vibration absorption end, the hoop is sleeved and fastened on the connecting bolt, the bifurcation connecting rod comprises a curved rod and a plurality of bifurcation rods bifurcated from the front end part of the curved rod, each bifurcation rod is respectively fixed with the corresponding hoop on the connecting bolt, and the rear end part of the curved rod is connected with the vibration absorption end.
2. A dewatering screen vibration damping device according to claim 1, wherein the size of the excitation force transmitting projection is the same as the size of the mounting groove in the top cross plate.
3. The damping device for a dewatering screen according to claim 1, wherein a set of said connecting bolts are respectively disposed on four side edges of said connecting base for fixedly connecting said connecting base to said top cross plate.
4. A dewatering screen vibration damping device according to claim 3, wherein four sets of said connecting bolts on said connecting base are each connected to one of said damping vibration damping mechanisms.
5. A dewatering screen vibration damping apparatus according to claim 4, wherein said bifurcated link in said damping vibration damping mechanism connected to said set of said connecting bolts outside said connection base is connected to said vibration absorbing end in the form of an arcuate curved bar;
the bifurcated connecting rod in the damping vibration attenuation mechanism connected with the group of connecting bolts on the inner side of the connecting base passes over the vibrator in an arc-shaped bent rod mode and is connected with the vibration absorption end.
6. The damping device for the dewatering screen according to claim 1, wherein the vibration absorbing end comprises a base, an energy absorbing spring and a mass block which are sequentially arranged from bottom to top, and the base is fixedly arranged on the ground outside the dewatering screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310174107.7A CN115992863A (en) | 2023-02-28 | 2023-02-28 | Damping device for dewatering screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310174107.7A CN115992863A (en) | 2023-02-28 | 2023-02-28 | Damping device for dewatering screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115992863A true CN115992863A (en) | 2023-04-21 |
Family
ID=85990471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310174107.7A Pending CN115992863A (en) | 2023-02-28 | 2023-02-28 | Damping device for dewatering screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115992863A (en) |
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2023
- 2023-02-28 CN CN202310174107.7A patent/CN115992863A/en active Pending
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