CN203253624U - Energy-storing and vibration-isolating device of revolving classifying screen - Google Patents
Energy-storing and vibration-isolating device of revolving classifying screen Download PDFInfo
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- CN203253624U CN203253624U CN 201320205379 CN201320205379U CN203253624U CN 203253624 U CN203253624 U CN 203253624U CN 201320205379 CN201320205379 CN 201320205379 CN 201320205379 U CN201320205379 U CN 201320205379U CN 203253624 U CN203253624 U CN 203253624U
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- spring
- classifying screen
- plintlet
- board
- energy
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Abstract
The utility model discloses an energy-storing and vibration-isolating device of a revolving classifying screen. The energy-storing and vibration-isolating device of the revolving classifying screen comprises a first connecting board connected with the tail end of a screen body, wherein the first connecting board is connected with one end of a spring through a first fastening piece, a second connecting board is connected to the other end of the spring through a second fastening piece, the second connecting board is fixed with a small clamping board, a big clamping board is arranged corresponding to the small clamping board, both the small clamping board and the big clamping board are in a three-fold shape, the small clamping board comprises a connecting part in the middle and warped parts on the two sides, the big clamping board comprises a connecting part in the middle and warped parts on the two sides, the connecting part in the middle of the small clamping board is connected with the second connecting board, the connecting part in the middle of the big clamping board is connected with a machine frame through a support, a vibration isolator is arranged between the warped parts on the two sides of the small clamping board, a vibration isolator is arranged between the warped parts on the two sides of the big clamping board, each vibration isolator comprises two connecting blocks arranged in parallel, the two connecting blocks of each vibration isolator are connected through a spiral steel wire rope, and the spiral parts of each spiral steel wire rope penetrate through two corresponding connecting blocks respectively and are fixed with the two corresponding connecting blocks. The matching between the spring and the vibration isolators enables energy consumption of the classifying screen to be low, impact force borne by the machine frame of the classifying screen to be small, and using of the classifying screen to be more reliable.
Description
Technical field
The utility model relates to a kind of energy storage isolation mounting, particularly a kind of energy storage isolation mounting that turns round classifying screen.
Background technology
In prior art, the revolution classifying screen is mainly used in the sieving and grading operation of feed factory granular material or pellet, also can be used for the classification of screening, intermediate products or the finished product of the industry raw materials such as grain, food, chemical industry, sugaring, mining, papermaking.
The revolution classifying screen is made of parts such as frame, drive unit, sieve nests, and its operation principle is that power is passed to drive unit by V belt by motor, and drive unit drives the sieve nest motion of constant slope again.Drive unit is provided with eccentric, so the movement locus of sieve nest from the feed end to the discharge end become elliptic motion gradually by horizontal circular motion, becomes at last approximate linear reciprocating motion.Material enters sieve nest from charging aperture, under the effect of sieve nest feed end circular motion, is evenly distributed in rapidly on whole compass screen surface width, and produces automatic classification.Dispose eccentric block in drive unit, eccentric block is opposite with the sieve nest installation direction, is used for the centrifugal force of balance sieve nest.
At present, revolution classifying screen Main Problems has: the vibration of (1) large-scale classifying screen is large, and is large on the factory building impact; (2) the compression handle of classifying screen is perishable, tail support is easily broken; (3) classification sieve ship, frame, screen cover have weld cracking and fracture.
In the running of revolution classifying screen, the gross energy of system has the characteristics of cyclic fluctuation, exist gross energy to increase period and energy minimizing period, gross energy in system increases the period, need that outside system, motor provides energy to drive, gross energy in system reduces the period, and the outside dissipation energy of system produces shock and vibration.
In prior art, be all from reducing inertia force, improve the life-span consideration, do not have from the storage of impact energy and the combination of vibration isolation technique to solve the vibration problem of turning round classifying screen.
The utility model content
The purpose of this utility model is to provide a kind of energy storage isolation mounting that turns round classifying screen, can absorb the impact energy of revolution classifying screen, energy savings, reduce vibration, larger to solve the vibration that has the revolution classifying screen now, tail support is easily broken, and classification sieve ship, frame, screen cover have the problem of weld cracking and phenomenon of rupture.
The purpose of this utility model is achieved in that a kind of energy storage isolation mounting that turns round classifying screen; Comprise the first connecting plate that is connected with the sieve nest tail end; Be connected with spring one end through the first securing member on the first connecting plate; The spring other end is connected with the second connecting plate through the second securing member; Described the second connecting plate and plintlet fix; Be provided with big clamp plate corresponding to plintlet; Described plintlet and big clamp plate all are three bending shapes; Connecting portion in the middle of comprising respectively and the warpage section of both sides; Connecting portion in the middle of plintlet is connected with the second connecting plate; Connecting portion in the middle of big clamp plate is connected with frame through support; Be respectively equipped with vibration isolator between the warpage section of the both sides of plintlet and big clamp plate, described vibration isolator comprises two contiguous blocks that be arranged in parallel, be connected through the spiral wire rope between two contiguous blocks, each spiral of described spiral wire rope passes respectively two contiguous blocks, and and two contiguous blocks between fix.
During this device work, the energy that comes from sieve nest orders about spring and stretches or compress, and realizes energy storage, when its energy discharges, can order about the sieve nest motion, thereby realize energy-conservation.During vibration isolator work, plintlet can be done the adaptability oscillating motion with sieve nest, to reduce impact energy.Being used in conjunction with of spring and vibration isolator makes the energy consumption of classifying screen low, frame is hit littlely, uses more reliable.This device can be used on vibration separation screen.
Easy for installation for guarantee making, the connecting portion of described plintlet and big clamp plate parallels setting, and the warpage section of plintlet and big clamp plate both sides also correspondence be arranged in parallel.
As further improvement of the present utility model, described spring is helical spring, spring is arranged on the direction of sieve nest axis, and vibration isolator is arranged symmetrically with take the axis of spring as symmetry axis, and the angular separation, axis of the hand of helix of spiral wire rope and spring is 15 °～85 °.
It further improves the stiffness coefficient K that is described spring
1Satisfy formula: T
max/ (0.5S)
2≤ K
1≤ 3 T
max/ (0.5S)
2, T wherein
maxBe the moving mass maximum kinetic energy of sieve nest, S is the longitudinal stroke of sieve nest afterbody mid point; The stiffness coefficient of steel-wire isolator is 4～15 times of spring rate.Like this, the deformation quantity of spring is much larger than the deformation quantity of vibration isolator, and due to square being directly proportional of elastic potential energy and deformation quantity, therefore most of kinetic energy is stored in spring, and the fraction energy loss is in the damping action of steel-wire isolator, and its energy utilization efficiency is high.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is use state diagram of the present utility model.
Fig. 3 is the vibration isolator structure schematic diagram.
Wherein, 1 stiffener, 2 big clamp plates, 3 spiral wire ropes, 4 contiguous blocks, 5 plintlets, 6 springs, 7 first securing members, 8 first connecting plates, 9 second securing members, 10 second connecting plates, 11 supports, 12 sieve nests, 13 frames.
The specific embodiment
As shown in the figure; Be a kind of energy storage isolation mounting that turns round classifying screen; Comprise the first connecting plate 8 that is connected with sieve nest 12 tail ends; Be connected with spring 6 one ends through the first securing member 7 on the first connecting plate 8; Spring 6 other ends are connected with the second connecting plate 10 through the second securing member 9; Described the second connecting plate 10 fixes with plintlet 5; Be provided with big clamp plate 2 corresponding to plintlet 5; Plintlet 5 and big clamp plate 2 all are three bending shapes; Connecting portion in the middle of comprising respectively and the warpage section of both sides; It is the warpage section 501 and 503 of the connecting portion 502 of plintlet and both sides; The warpage section 201 and 203 of the connecting portion 202 of big clamp plate and both sides; Connecting portion 502 in the middle of plintlet 5 is connected with the second connecting plate 10; Connecting portion 202 in the middle of big clamp plate 2 is connected with frame 13 through support 11; For guaranteeing the rigidity of support 11, can be welded and fixed a stiffener 1 on support 11, be respectively equipped with vibration isolator between the warpage section of the both sides of plintlet 5 and big clamp plate 2, described vibration isolator comprises two contiguous blocks 4 that be arranged in parallel, be connected through spiral wire rope 3 between two contiguous blocks 4, each spiral of described spiral wire rope 3 passes respectively two contiguous blocks 4, and and two contiguous blocks 4 between fix.The connecting portion of plintlet 5 and big clamp plate 2 parallels setting, and the warpage section of plintlet 5 and big clamp plate 2 both sides also correspondence be arranged in parallel.Spring 6 is helical spring, and spring 6 is arranged on sieve nest 12 axis directions, and vibration isolator is arranged symmetrically with take the axis of spring 6 as symmetry axis, and the angular separation, axis of the hand of helix of spiral wire rope 3 and spring 6 is 15 °～85 °.
The stiffness coefficient K of described spring
1Satisfy following formula
T
max/ (0.5S)
2≤ K
1≤ 3T
max/ (0.5S)
2, T wherein
maxBe the moving mass maximum kinetic energy of sieve nest, S is the longitudinal stroke of sieve nest afterbody mid point; The stiffness coefficient of vibration isolator is 4～15 times of spring rate, is preferably 8～12 times.Like this, the deformation quantity of spring is much larger than the deformation quantity of vibration isolator, and due to square being directly proportional of elastic potential energy and deformation quantity, therefore most of kinetic energy is stored in spring, and the fraction energy loss is in the damping action of vibration isolator.
If the moving mass maximum kinetic energy of sieve nest is T
max, the longitudinal stroke of the mid point of sieve nest afterbody is S, the stiffness coefficient of spring is K
1, the global stiffness coefficient of steel-wire isolator is K
2, have:
T
max=0.5 K
1 X
1 2+ 0.5K
2 X
2 2 （1）
In formula: X
1-the deflection (m) of spring when being the extreme position of S;
X
2-the longitudinal deformation amount (m) of steel-wire isolator when being the extreme position of S;
In addition, also have:
0.5S= X
1+ X
2 （2）
K
1 X
1= K
2 X
2（3）
The moving mass maximum kinetic energy computational methods of revolution classifying screen are as follows:
Structure and the operation principle of revolution classifying screen are approximately slider-crank mechanism, sieve nest is the connecting rod in slider-crank mechanism, if the quality of sieve nest is M(Kg), generally the center of gravity of sieve nest is on the mid point on the length direction of sieve nest, the quality that the moving mass that turns round classifying screen is approximately sieve nest is 1/2 of M, the rotating speed of crank is ω, and throw of crankshaft is r:
T
max=1/2*（1/2*M）r
2ω
2 （4）
And order: K
2=9K
1(5)
For example, M=1200(Kg), S=0.09m, ω=21 rad/s, r=0.045m with data substitution formula (4), and can get with formula (1) (2) (3) (5) simultaneous solution:
T
max=267.9J，K
1 =293992N/m，X
1=0.0405m，K
2 =2645926N/m，X
2=0.0045m，0.5*K
1 X
1 2=241J。
Be namely that the moving mass maximum kinetic energy is 267.9 J, the elastic potential energy of spring when maximum deformation quantity is 241J, due to 0.5*K
1X
1 2/ T
max=0.9, spring has linear and undamped characteristic, and spring makes 90% of moving mass maximum kinetic energy be absorbed by spring and stores and recycling.Remaining 10% is absorbed by vibration isolator, the impact energy total amount reduces like this, in vibration isolator strain process, can form stronger nonlinear dampling stagnant, vibration isolator nonlinear softening type rigidity, heavy damping hysteresis characteristic make its a large amount of absorption and the vibrational energy of consumption systems and the release of delaying time, can reduce the vibration of revolution classifying screen, and impair system shock response effectively.The arrangement of vibration isolator makes that on the plane, the vibration on all directions is inhibited and eliminates.
Therefore, this device is combined with spring and vibration isolator, utilize linearity and the undamped characteristic of spring to absorb in a large number kinetic energy and the recycling that stores the revolution classifying screen, and the heavy damping hysteresis characteristic of utilizing vibration isolator absorbs and vibrational energy and the time-delay of consumption systems discharge, the impair system shock response, reduce the vibration on all directions on the plane, reached the purpose of energy storage and vibration isolation, and energy savings significantly.
The utility model is not limited to above-described embodiment; on the basis of the disclosed technical scheme of the utility model; those skilled in the art is according to disclosed technology contents; do not need performing creative labour just can make some replacements and distortion to some technical characterictics wherein, these replacements and distortion are all in protection domain of the present utility model.
Claims (4)
1. energy storage isolation mounting that turns round classifying screen; It is characterized in that: comprise the first connecting plate that is connected with the sieve nest tail end; Be connected with spring one end through the first securing member on the first connecting plate; The spring other end is connected with the second connecting plate through the second securing member; Described the second connecting plate and plintlet fix; Be provided with big clamp plate corresponding to plintlet; Described plintlet and big clamp plate all are three bending shapes; Connecting portion in the middle of comprising respectively and the warpage section of both sides; Connecting portion in the middle of plintlet is connected with the second connecting plate; Connecting portion in the middle of big clamp plate is connected with frame through support; Be respectively equipped with vibration isolator between the warpage section of the both sides of plintlet and big clamp plate, described vibration isolator comprises two contiguous blocks that be arranged in parallel, be connected through the spiral wire rope between two contiguous blocks, each spiral of described spiral wire rope passes respectively two contiguous blocks, and and two contiguous blocks between fix.
2. the energy storage isolation mounting of revolution classifying screen according to claim 1, it is characterized in that: the connecting portion of plintlet and big clamp plate parallels setting, and the warpage section of plintlet and big clamp plate both sides also correspondence be arranged in parallel.
3. the energy storage isolation mounting of revolution classifying screen according to claim 1 and 2, it is characterized in that: described spring is helical spring, spring is arranged on the direction of sieve nest axis, vibration isolator is arranged symmetrically with take the axis of spring as symmetry axis, and the angular separation, axis of the hand of helix of spiral wire rope and spring is 15 °～85 °.
4. the energy storage isolation mounting of revolution classifying screen according to claim 3, is characterized in that: the stiffness coefficient K of described spring
1Satisfy following formula T
max/ (0.5S)
2≤ K
1≤ 3 T
max/ (0.5S)
2, T wherein
maxBe the moving mass maximum kinetic energy of sieve nest, S is the longitudinal stroke of sieve nest afterbody mid point; The stiffness coefficient of steel-wire isolator is 4～15 times of spring rate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320205379 CN203253624U (en) | 2013-04-23 | 2013-04-23 | Energy-storing and vibration-isolating device of revolving classifying screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320205379 CN203253624U (en) | 2013-04-23 | 2013-04-23 | Energy-storing and vibration-isolating device of revolving classifying screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203253624U true CN203253624U (en) | 2013-10-30 |
Family
ID=49466233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320205379 Withdrawn - After Issue CN203253624U (en) | 2013-04-23 | 2013-04-23 | Energy-storing and vibration-isolating device of revolving classifying screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203253624U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103212536A (en) * | 2013-04-23 | 2013-07-24 | 牧羊有限公司 | Energy storage and vibration isolation device of rotary grading screen |
| CN109453989A (en) * | 2018-06-25 | 2019-03-12 | 中国矿业大学(北京) | More plastid activated vibration uniform thickness flip flop screens |
| CN114210559A (en) * | 2021-12-22 | 2022-03-22 | 遂宁安通商品混凝土有限公司 | Grit aggregate production system |
-
2013
- 2013-04-23 CN CN 201320205379 patent/CN203253624U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103212536A (en) * | 2013-04-23 | 2013-07-24 | 牧羊有限公司 | Energy storage and vibration isolation device of rotary grading screen |
| CN103212536B (en) * | 2013-04-23 | 2016-05-11 | 牧羊有限公司 | The energy storage isolation mounting of revolution classifying screen |
| CN109453989A (en) * | 2018-06-25 | 2019-03-12 | 中国矿业大学(北京) | More plastid activated vibration uniform thickness flip flop screens |
| CN109453989B (en) * | 2018-06-25 | 2021-09-14 | 中国矿业大学(北京) | Multi-plastid activation vibration equal-thickness relaxation screen |
| CN114210559A (en) * | 2021-12-22 | 2022-03-22 | 遂宁安通商品混凝土有限公司 | Grit aggregate production system |
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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: 20131030 Effective date of abandoning: 20160511 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |