CN209829551U

CN209829551U - Vibrating screening machine

Info

Publication number: CN209829551U
Application number: CN201920257507.3U
Authority: CN
Inventors: 梁显荣; 梁华坤
Original assignee: Nanning Yilin Machinery And Equipment Co Ltd
Current assignee: Nanning Yilin Machinery And Equipment Co Ltd
Priority date: 2019-02-28
Filing date: 2019-02-28
Publication date: 2019-12-24
Anticipated expiration: 2029-02-28

Abstract

The utility model discloses a vibrating screen classifier, include the screening machine includes brace table, driving motor, feed bin, eccentric mechanism, vibration buffer mechanism, screen cloth, supports steelframe and silo, the top and the bottom opening of this feed bin, and install in proper order on the brace table from a left side to the right side driving motor, eccentric mechanism and vibration buffer mechanism, the bottom that should support the steelframe passes through vibration buffer mechanism and sets up in the top of brace table, support the steelframe setting in eccentric mechanism's the upper right side support the steelframe installation the feed bin, driving motor pass through eccentric mechanism with support the steelframe transmission and connect, seted up the discharge gate on screen cloth and feed bin mutually fixed's right-hand member lateral wall the slope of screen cloth below sets up the silo. The utility model discloses can sieve fast, carry out vibration screening through adjusting eccentric displacement volume, make vibration screening in-process equipment more steady, durable, can drop into lower than the sieve that sways in order to improve automatic screening efficiency.

Description

Vibrating screening machine

Technical Field

The method belongs to the field of screening mechanical equipment, and particularly relates to a vibrating screen machine.

Background

In the artificial board industry or the paper making industry, most of eucalyptus or other tree species are cut or rotary-cut into short knots, broken stones, waste residues and other wastes contained in the cut or rotary-cut short knots need to be screened out, when the short knots are used, the stones and the waste residues in the short knots easily damage equipment (a chipping machine) in the next working procedure and influence the quality of artificial boards or paper making, at present, when the short knots are used, a swing sieve is generally adopted, and the swing sieve has two problems: 1. the eccentric amount of the swing screen is small, the screening is not clean or the yield is low (when the eccentric amount is increased, equipment is easy to damage), and the feeding efficiency is influenced; 2. when the swing screen is used, a storage bin and a belt conveyor are required to be arranged, so that the investment cost is increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a vibrating screen machine, which can rapidly screen and feed materials and adjust the eccentric displacement to improve the automatic screening efficiency; lower investment than a swinging screen. In order to realize the purpose, the utility model discloses a following technological effect:

according to one aspect of the present invention, there is provided a feeding system for a vibrating screen, comprising a support table, a driving motor, a bin, an eccentric mechanism, a vibration buffering mechanism, a screen, a support steel frame and a trough, wherein the top and bottom of the bin are open, the driving motor, the eccentric mechanism and the vibration buffering mechanism are sequentially mounted on the support table from left to right, the bottom of the support steel frame is disposed above the support table through the vibration buffering mechanism, the support steel frame is disposed at the upper right of the eccentric mechanism, the bin is mounted on the support steel frame, the driving motor is in transmission connection with the support steel frame through the eccentric mechanism, so that the eccentric mechanism extends and is fixed on the support table along the front of the outer wall of the bin, the screen is fixed in the bin and divides the bin into an upper part and a lower part, and a discharge port is formed on the side wall of the right end where the screen and the bin are fixed, the material groove is obliquely arranged below the screen, and the discharge port is positioned on the same horizontal line with the screen and close to one end of the discharge port.

Above-mentioned scheme is further preferred, the feed bin is connected on the brace table through two parallel arrangement's vibration damper at least.

The further preferred of above-mentioned scheme, vibration buffer gear includes base, vibrating spring, fixed block, pendulum rod and takes the circular bearing frame of boss, the fixed block is fixed on the bottom outer wall of feed bin, the one end of vibrating spring and the one end of pendulum rod are connected with the fixed block respectively, this vibrating spring's the other end pass through the bolt with base fixed connection, the other end of pendulum rod with take the circular bearing frame of boss to rotate and be connected.

Above-mentioned scheme is further preferred, the cross section of fixed block with be fixed with an inclined bracing piece at least between the bottom outer wall of feed bin, the base has an inclined plane of slope, vibrating spring connects between bracing piece and inclined plane.

In a further preferred embodiment of the above solution, the direction of inclination of the inclined plane is parallel to the direction of mutual inclination of the support rods.

In a further preferred embodiment of the above solution, the circular bearing seat with the boss is a U-shaped bearing seat or a C-shaped bearing seat.

The scheme is further preferred, the trough is downwards inclined towards one end of the discharge hole, and the downward inclination angle of the trough towards one end of the discharge hole is 5-15 degrees.

Above-mentioned scheme is further preferred, eccentric mechanism includes drive wheel, drive shaft, eccentric bearing (42) and connecting rod support on the steelframe and be close to eccentric bearing one side and be provided with fixed otic placode, this fixed otic placode is opened and is had a plurality of breachs, the both ends of drive shaft are transversely fixed on a supporting bench through the support bearing level, set up in the one end of drive shaft the drive wheel, this drive wheel pass through the conveying chain and are connected with the driving motor transmission, and even interval cup joints a plurality of eccentric bearings in the drive shaft, on eccentric bearing and be close to fixed otic placode one side and be provided with the sleeve, the stiff end of a connecting rod is connected respectively to the sleeve on every eccentric bearing, and the free end of this connecting rod passes the breach and fixes on fixed otic placode.

According to the scheme, the rubber composite springs are arranged on the front side and the rear side of the notch respectively, and the rubber composite springs are sleeved on the connecting rod, so that the fixing lug plates are clamped on the connecting rod between the two rubber composite springs.

The above solution is further preferred, wherein the eccentric distance of the eccentric bearing is greater than 15 mm.

To sum up, because the utility model adopts the above technical scheme, the utility model discloses following technological effect has:

compared with a swing sieve, the utility model has the advantages of large vibration frequency, high yield and better sieving; the bottom of the vibrating screen is provided with a spring vibration reduction and buffering mechanism which can carry out rapid screening and carry out vibrating screening by adjusting the eccentric displacement, so that the equipment is more stable and durable in the vibrating screening process, and the eccentric displacement can be adjusted to improve the automatic screening efficiency; the investment is lower than that of a swinging sieve, and the occupied area is less.

Drawings

Figure 1 is a schematic structural view of a vibratory screening machine of the present invention;

figure 2 is a top plan view of a vibratory screening machine according to the present invention;

fig. 3 is a front view of the eccentric mechanism of the present invention;

fig. 4 is a schematic connection diagram of the eccentric bearing of the present invention;

fig. 5 is a schematic structural view of the vibration damping mechanism of the present invention;

fig. 6 is a schematic structural diagram of the base of the present invention;

in the drawing, a supporting table 1, a driving motor 2, a stock bin 3, an eccentric mechanism 4, a vibration buffer mechanism 5, a screen 6, a supporting steel frame 7, a driving wheel 40, a driving shaft 41, an eccentric bearing 42, a connecting rod 43, a rubber composite spring 44, an adjusting nut 45, a base 50, a vibration spring 51, a fixed block 52, a swing rod 53, a circular bearing seat 54 with a boss, a supporting rod 50b, a bolt 50a, an inclined plane 50c, a fixed lug plate 70, a notch 71 and a sleeve 420.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to the accompanying drawings and by referring to preferred embodiments. It should be understood, however, that the numerous specific details set forth in the specification are merely set forth to provide a thorough understanding of one or more aspects of the present invention, which may be practiced without these specific details.

As shown in fig. 1 and 2, according to an aspect of the present invention, there is provided a vibratory screening machine, the screening machine includes a support table 1, a driving motor 2, a bin 3, an eccentric mechanism 4, a vibration damping mechanism 5, a screen 6, a support steel frame 7 and a trough 9, the bin 3 is provided with openings at the top and bottom ends, the driving motor 2, the eccentric mechanism 4 and the vibration damping mechanism 5 are sequentially installed on the support table 1 from left to right, the bottom of the support steel frame 7 is disposed above the support table 1 through the vibration damping mechanism 5, the support steel frame 7 is disposed at the upper right of the eccentric mechanism 4, the bin 3 is installed on the support steel frame 7, the driving motor 2 is in transmission connection with the support steel frame 7 through the eccentric mechanism 4, so that the eccentric mechanism 4 extends and is fixed on the support table 1 along the front of the outer wall of the bin 3, the screen cloth 6 is fixed in feed bin 3 and is divided into upper and lower two parts with feed bin 3, has seted up discharge gate 8 on the right-hand member lateral wall of screen cloth 6 and feed bin 3 reciprocal anchorage screen cloth 6 below slope sets up silo 9, this silo to 8 square slopes of discharge gate and set up along the extending direction of screen cloth 6, and the tiny material that conveniently sieves out is discharged and is retrieved from silo 9, discharge gate 8 with screen cloth 6 and be close to 8 one end of discharge gate are in on the same water flat line, screen cloth 6 sets up to 8 one end downward sloping of discharge gate, silo 9 is 5 ~ 15 to the angle of 8 one end downward sloping of discharge gate to make things convenient for the stuff knot material to be sieved fast and vibrated and transport to discharge gate 8.

In the present invention, as shown in fig. 1, fig. 2, fig. 3 and fig. 4, the eccentric mechanism 4 includes a driving wheel 40, a driving shaft 41, an eccentric bearing 42 and a connecting rod 43, a fixed ear plate 70 is disposed on the supporting steel frame 7 and near one side of the eccentric bearing 42, the fixed ear plate 70 is opened with a plurality of notches 71, two ends of the driving shaft 41 are horizontally and transversely fixed on the supporting table 1 through the supporting bearing, the driving wheel 40 is disposed at one end of the driving shaft 41, the driving wheel 40 is in transmission connection with the driving motor 2 through the transmission chain 20, a plurality of eccentric bearings 42 are sleeved on the driving shaft 41 at uniform intervals, a sleeve 420 is disposed on the eccentric bearing 42 and near one side of the fixed ear plate 70, the sleeve 420 and the eccentric bearing 42 are welded together, the sleeve 420 on each eccentric bearing 42 is connected with a fixed end of one connecting rod 43, the connecting rod 43 is inserted into the sleeve 420 for welding, the free end of the connecting rod 43 passes through the notch 71 and is fixed on the fixed lug plate 70 through the adjusting nut 45, the rubber composite springs 44 are respectively arranged on the front side and the rear side of the notch 71, the rubber composite springs 44 are sleeved on the connecting rod 43, so that the fixed lug plate 70 is clamped on the connecting rod 43 between the two rubber composite springs 44, the eccentric distance of the eccentric bearing 42 is greater than 15mm, the bin 3 can perform vibration screening in a smaller eccentric range, preferably between 16mm and 24mm, the diameter of the outer ring of the eccentric bearing 42 is greater than twice of the diameter of the inner ring, and the diameter of the inner ring of the eccentric bearing 42 is 100mm to 110 mm. The two sides of each connecting rod 43 penetrating through the fixed ear plate 70 are respectively provided with the rubber composite spring 44, the rubber composite springs 44 are respectively sleeved on the connecting rods 43 and then fixed on the supporting steel frame 7 through the fixed ear plates 70, so that the connecting rods 43 are obliquely arranged between the driving shaft 41 and the supporting steel frame 7, when the driving motor 2 works, the driving wheel 40 is driven to rotate, one end of each connecting rod 43 is enabled to do synchronous circular motion, periodic eccentric displacement generated by the eccentric bearing 42 is transmitted to the supporting steel frame 7 through the connecting rods 43 and the rubber composite springs 44 thereof, the supporting steel frame 7 simultaneously generates displacement, the stock bins 3 on the supporting steel frame 7 and wood loaded in the screen 6 are screened, the automatic screening efficiency is improved, and by adjusting the adjusting nuts 45, the relative displacement of the supporting steel frame 7 on the connecting rods 43 can be adjusted, so that the displacement of the supporting steel frame 7 which generates vibration is changed, the rubber compound spring 44 prevents the connecting rod 43 from excessively rubbing against the notch 71, and starts a good damping effect during vibration.

In the utility model, as shown in fig. 5 and 6, the stock bin 3 is connected to the support platform 1 at least through two vibration buffering mechanisms 5 arranged in parallel, the vibration buffering mechanism 5 comprises a base 50, a vibration spring 51, a fixed block 52, a swing rod 53 and a round bearing seat 54 with a boss, the fixed block 52 is fixed on the bottom of the support steel frame 7, one end of the vibration spring 51 and one end of the swing rod 53 are respectively connected with the fixed block 52, the other end of the vibration spring 51 is fixedly connected with the base 50 through a bolt 50a, the other end of the swing rod 53 is rotatably connected with the round bearing seat 54 with the boss, at least one inclined support rod 50b is fixed between the cross section of the fixed block 52 and the bottom of the support steel frame 7, the base 50 has an inclined plane 50c, the vibration spring 51 is connected between the support rod 50b and the inclined plane 50c, the inclined direction of the inclined plane 50C is parallel to the inclined direction of the support rod 50b, the circular bearing seat 54 with the boss is a U-shaped bearing seat or a C-shaped bearing seat, the swing rod 53 extends into the U-shaped bearing seat or the C-shaped bearing seat, the swing rod 53 rotates back and forth along with the rotation of the bearing in the U-shaped bearing seat or the C-shaped bearing seat, the swing rod 53 generates displacement in the back and forth swinging process and forms back and forth vibration under the action force of the vibration spring 51, when the driving motor 2 drives the eccentric mechanism 4 to rotate through the belt pulley, the eccentric bearing 42, the connecting rod 43 and the rubber composite spring 44 in the eccentric mechanism 4 are connected with the support steel frame 7 (a screen is installed in the bin) through the vibration spring 51, when the driving shaft 41 in the eccentric mechanism 4 rotates, the connecting rod 43 drives the swing rod 53 in the vibration buffer mechanism 5 to swing left and right, so as to drive the support steel frame, the rotation of the eccentric mechanism 4 forms the eccentric vibration of the vibration buffer mechanism 5, so that the thinner short knots, broken stones and waste residues are separated from the screen 6, and the thicker knots are screened out from the discharge hole 8 and sent to the next working procedure for crushing.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A vibrating screen machine which characterized in that: the screening machine comprises a supporting table (1), a driving motor (2), a bin (3), an eccentric mechanism (4), a vibration buffering mechanism (5), a screen (6), a supporting steel frame (7) and a trough (9), wherein the top end and the bottom end of the bin (3) are opened, the driving motor (2), the eccentric mechanism (4) and the vibration buffering mechanism (5) are sequentially installed on the supporting table (1) from left to right, the bottom of the supporting steel frame (7) is arranged above the supporting table (1) through the vibration buffering mechanism (5), the supporting steel frame (7) is arranged above the right of the eccentric mechanism (4), the bin (3) is installed on the supporting steel frame (7), the driving motor (2) is in transmission connection with the supporting steel frame (7) through the eccentric mechanism (4), and therefore the eccentric mechanism (4) extends and is fixed on the supporting table (1) along the front of the outer wall of the bin (3), screen cloth (6) are fixed in feed bin (3) and divide into two parts about feed bin (3), have seted up discharge gate (8) on screen cloth (6) and feed bin (3) reciprocal anchorage's right-hand member lateral wall screen cloth (6) below slope sets up silo (9), discharge gate (8) with screen cloth (6) and be close to discharge gate (8) one end is in on the same water flat line.

2. The vibratory screen machine according to claim 1, wherein: the storage bin (3) is connected to the supporting platform (1) at least through two vibration buffering mechanisms (5) arranged in parallel.

3. The vibratory screen machine according to claim 1 or 2, wherein: vibration buffer gear (5) include base (50), vibrating spring (51), fixed block (52), pendulum rod (53) and take boss circular bearing seat (54), fixed block (52) are fixed on the bottom outer wall of feed bin (3), the one end of vibrating spring (51) and the one end of pendulum rod (53) are connected with fixed block (52) respectively, the other end of this vibrating spring (51) pass through bolt (50a) with base (50) fixed connection, the other end of pendulum rod (53) with take boss circular bearing seat (54) to rotate and connect.

4. The vibratory screen machine according to claim 3, wherein: an inclined supporting rod (50b) is at least fixed between the cross section of the fixing block (52) and the outer wall of the bottom of the storage bin (3), the base (50) is provided with an inclined plane (50c), and the vibration spring (51) is connected between the supporting rod (50b) and the inclined plane (50 c).

5. The vibratory screen machine according to claim 4, wherein: the inclined direction of the inclined surface (50c) and the inclined direction of the support rod (50b) are parallel to each other.

6. The vibratory screen machine according to claim 1, wherein: the eccentric mechanism (4) comprises a driving wheel (40), a driving shaft (41), eccentric bearings (42) and connecting rods (43), a fixed lug plate (70) is arranged on the supporting steel frame (7) and close to one side of the eccentric bearings (42), a plurality of notches (71) are formed in the fixed lug plate (70), two ends of the driving shaft (41) are horizontally and transversely fixed on the supporting platform (1) through the supporting bearings, the driving wheel (40) is arranged at one end of the driving shaft (41), the driving wheel (40) is in transmission connection with the driving motor (2) through the transmission chain 20, the eccentric bearings (42) are sleeved on the driving shaft (41) at uniform intervals, sleeves (420) are arranged on the eccentric bearings (42) and close to one side of the fixed lug plate (70), and the fixed end of one connecting rod (43) is connected to each sleeve (420) of each eccentric bearing (42), the free end of the connecting rod (43) passes through the notch (71) and is fixed on the fixed lug plate (70) through the adjusting nut (45).

7. The vibratory screen machine according to claim 6, wherein: rubber compound springs (44) are respectively arranged on the front side and the rear side of the notch (71), and the rubber compound springs (44) are sleeved on the connecting rod (43), so that the fixed lug plate (70) is clamped on the connecting rod (43) between the two rubber compound springs (44).

8. The vibratory screen machine according to claim 6, wherein: the eccentric distance of the eccentric bearing (42) is larger than 15 mm.