CN220678507U - Multilayer sand screening machine - Google Patents

Abstract

The utility model discloses a multilayer sand screening machine which comprises a support, a spring and a vibration bin, wherein a vibration motor is arranged at the bottom of the vibration bin, feeding is arranged at the top of the vibration bin, a sand screening plate which is inclined downwards is arranged in the vibration bin, one side of the sand screening plate is positioned at the bottom of a feeding hopper, and the other side of the sand screening plate is connected with a discharging channel. The vibration bin is provided with a clamping groove and a baffle, the sieve Sha Banka is arranged in the clamping groove and is erected on the baffle, the vibration bin is provided with a door body assembly capable of being opened or closed, the output shaft of the vibration motor is sequentially provided with a fixed eccentric throwing block and an adjustable eccentric throwing block, the outermost end of the vibration bin is provided with a check ring, the fixed eccentric throwing block and the adjustable eccentric throwing block are respectively provided with a mounting hole and a tensioning part, and a screw penetrates through the tensioning part and is then connected in the mounting hole in a threaded manner. According to the utility model, the exciting force of the vibrating motor can be adjusted according to the actual use condition, so that the screen mesh can be prevented from being blocked due to the too small exciting force; the door body assembly capable of opening or closing the opening is arranged, so that the screen can be replaced quickly.

Description

Multilayer sand screening machine

Technical Field

The utility model relates to the technical field of construction equipment machinery, in particular to a multilayer sand screening machine.

Background

The multilayer sand sieving machine is suitable for river channel, reservoir, coal yard and building construction. The multilayer sand screening machine uses vibration motor excitation as vibration power source to make material be thrown up on the screen, at the same time makes straight-line motion, the material uniformly enters the feed inlet of screening machine from feeder, and several specifications of oversize material and undersize material are produced by multilayer screen, and respectively discharged from respective outlets.

Through searching, the utility model patent with the Chinese patent number of CN209697434U discloses a civil engineering multilayer classifying sand screening machine, which comprises a shell, a feed hopper, a first screen and a second screen, wherein the feed hopper is welded above the shell, a first screen frame is welded inside the shell, the first screen frame is fixedly arranged on the inner side of the first screen frame through bolts, a first vibrating motor is fixedly arranged below the first screen frame through bolts, the first vibrating motor is used for driving the first screen frame to vibrate, a first material guiding inclined plate is arranged below the first vibrating motor, a second screen frame is arranged below the first material guiding inclined plate, the second screen frame is used for mounting and supporting the second screen frame, the second screen frame is fixedly arranged on the inner side of the second screen frame through bolts, a second guiding inclined plate is arranged below the second vibrating motor, and a first collecting hopper is welded on one side of the shell.

However, in the practical use process of the sand screening machine, as the screen is fixedly arranged in the screen frame through the screws, the screen is blocked or the screen with other apertures is replaced, so that the screen is inconvenient to replace; in addition, the exciting force of the vibrating motor is difficult to adjust according to actual use conditions, and when the exciting force is needed to be large, such as high sand and stone humidity, the screen is easy to be blocked. Therefore, there is a need for a multi-layer sand screening machine with replaceable screens and adjustable excitation force.

Disclosure of Invention

The utility model aims to solve the technical problems that a screen mesh of a sand screening machine in the prior art cannot be replaced quickly and the exciting force of a motor cannot be adjusted, and provides a multilayer sand screening machine.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the multilayer sand screening machine comprises a support, springs and a vibrating bin which is obliquely arranged, wherein a plurality of springs are arranged at the top of the support, the vibrating bin is arranged at the tops of the springs, a vibrating motor is arranged at the bottom of the vibrating bin, and a feed hopper is arranged at the top of the vibrating bin; a sand screening plate which is inclined downwards is arranged in the vibration bin, one side of the sand screening plate is positioned at the bottom of the feeding hopper, and the other side of the sand screening plate is connected with a discharging channel; the vibration bin is provided with a clamping groove and a baffle plate, and the sieve Sha Banka is arranged in the clamping groove and is erected on the baffle plate; an opening is formed in one side of the vibration bin, and a door body assembly capable of opening or closing the opening is arranged on the vibration bin; the sand screening plate comprises a plurality of screens which are stacked up and down, and the mesh holes of the screens are reduced layer by layer; the outer part of an output shaft of the vibration motor is sequentially provided with a fixed eccentric fling block and an adjustable eccentric fling block, the adjustable eccentric fling block is sleeved on the output shaft, and the outermost end of the output shaft of the vibration motor is provided with a check ring; the fixed eccentric throwing block and the adjustable eccentric throwing block are respectively provided with a mounting hole and a tensioning part, and the screw penetrates through the tensioning part and then is in threaded connection with the mounting hole.

Further, the discharging channel comprises a plurality of discharging hoppers, one discharging hopper is communicated with the bottom of the vibrating bin, the other plurality of discharging hoppers are respectively communicated with a plurality of screens, and the plurality of discharging hoppers are arranged in a staggered mode.

Further, a discharging hole and an adjusting component are formed in one side, close to the sand screening plate, of the feeding hopper, a discharging plate is arranged outside the discharging hole, and the discharging plate is connected with the adjusting component.

Further, the adjusting component comprises a threaded hole, a bolt and an adjusting slide way, the adjusting slide way is arranged on the discharging plate, the threaded hole corresponds to the position of the adjusting slide way, the bolt sequentially penetrates through the adjusting slide way and the threaded hole, the bolt is provided with a nut, and the nut is in butt joint with the outer side face of the discharging plate.

Further, the door body assembly comprises a door plate rotatably connected to the side wall of the vibration bin, a decorative plate is fixedly connected to the outer side of the door plate, a handle is arranged on the decorative plate, and first magnetic strips are symmetrically inlaid on the inner side of the decorative plate up and down; the outer side wall of the vibration bin is provided with a second magnetic stripe, and the first magnetic stripe and the second magnetic stripe are opposite in magnetism.

Further, a plurality of grooves are formed in the outer side wall, close to one side of the opening, of the vibration bin, and the grooves are communicated with the clamping grooves.

Compared with the prior art, the utility model has the beneficial effects that:

1. the adjustable eccentric throwing block is arranged on the output shaft of the vibrating motor, the tensioning part is opened by unscrewing the screw, the adjustable eccentric throwing block can rotate between the output shaft of the vibrating motor and the output shaft of the vibrating motor, then the overlapped area between the adjustable eccentric throwing block and the adjustable eccentric throwing block is changed, after the angle of the adjustable eccentric throwing block is adjusted according to the actual use condition, the tensioning part is tightened by screwing the screw, so that the adjustable eccentric throwing block is tightly attached to the output shaft and limited by the retainer ring, and the screen is blocked due to the fact that the exciting force is adjusted and the screen is prevented from being blocked due to the fact that the exciting force is too small.

2. The side wall of the vibration bin is provided with a door body assembly capable of opening or closing the opening, the door body assembly is matched with the screen card to be arranged in a clamping groove in the vibration bin, and the opening is opened by pulling a handle of the door body assembly, so that the screen is pulled, and the screen can be quickly replaced.

3. The adjustable blowing speed of feeder hopper is through adopting the bolt to slide in the regulation slide on the flitch of blowing, adjusts the distance between flitch and the screen cloth to control the blowing speed, prevent that the feeder hopper blowing speed from too fast or too slow influence the screening effect of screen cloth.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a multi-layer sand screening machine according to the present utility model;

FIG. 2 is a schematic view of an overall structure of an opening of a multi-layer sand screening machine according to the present utility model;

FIG. 3 is an enlarged schematic view of the structure shown in FIG. 2A;

FIG. 4 is a schematic diagram of the internal structure of the multi-layer sand screening machine according to the present utility model;

FIG. 5 is an enlarged schematic view of the structure shown at B in FIG. 4;

FIG. 6 is a second schematic diagram of the overall structure of the multi-layer sand screening machine according to the present utility model;

fig. 7 is an enlarged schematic view of the structure at C in fig. 6.

In the figure: 1. a bracket; 2. a spring; 3. a vibration bin; 4. a clamping groove; 5. a sand screening plate; 51. a screen; 6. a baffle; 7. a discharge channel; 71. discharging a hopper; 8. a groove; 9. an opening; 10. a door body assembly; 101. a door panel; 102. a decorative plate; 103. a handle; 104. a first magnetic stripe; 105. a second magnetic stripe; 11. a vibration motor; 111. a retainer ring; 112. fixing an eccentric throwing block; 113. an adjustable eccentric throwing block; 114. a tensioning part; 115. a mounting hole; 116. a screw; 12. a feed hopper; 121. a discharge port; 122. a threaded hole; 123. a discharging plate; 124. adjusting the slideway; 125. a bolt; 126. and (5) a screw cap.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

As shown in figures 1-7, the multilayer sand screening machine comprises a support 1, springs 2 and a vibration bin 3 which is obliquely arranged, wherein a plurality of springs 2 are arranged at the top of the support 1, the vibration bin 3 is arranged at the top of the springs 2, a vibration motor 11 is arranged at the bottom of the vibration bin 3, and a feed hopper 12 is arranged at the top of the vibration bin 3. The sand screening plate 5 inclined downwards is arranged in the vibration bin 3, and the sand screening plate 5 is arranged in an inclined mode, so that sand and stones can slide downwards conveniently under the action of gravity, and the sand and stones after screening can be discharged more conveniently. One side of the sand screening plate 5 is positioned at the bottom of the feed hopper 12, and the other side of the sand screening plate 5 is connected with the discharge channel 7. Sand and stones to be screened are filled in the feed hopper 12, the sand screening plate 5 in the vibration bin 3 is driven to vibrate by the vibration motor 11 to screen, and the separated sand and stones are conveyed out of the discharge channel 7 to be classified and collected.

As shown in fig. 1-3, the vibration bin is provided with a clamping groove 4 and a baffle plate 6, and the sand screening plate 5 is clamped in the clamping groove 4 and is arranged on the baffle plate 6, namely, the sand screening plate 5 can be taken out from the clamping groove 4. An opening 9 is formed in one side of the vibration bin 3, and a door body assembly 10 capable of opening or closing the opening 9 is arranged on the vibration bin 3. The sand screening plate 5 includes a plurality of screens 51 placed in a vertically stacked manner, and the screen holes of the plurality of screens 51 are reduced layer by layer, in this embodiment, the screens 51 are provided in three, and the silt is screened three times layer by layer, thereby obtaining sand and coarse stone with different coarse and fine particles. Correspondingly, the discharge channel 7 is provided with four discharge hoppers 71, wherein one discharge hopper 71 is communicated with the bottom of the vibration bin 3, namely, the sand with the finest particles after screening is discharged from the discharge hopper 71. The remaining three hoppers 71 are respectively connected to the three screens 51 for discharging the sand and stones collected by the separation. In order not to affect the discharge of the respective discharge hoppers 71, the four discharge hoppers 71 are arranged alternately.

In this embodiment, when the screen 51 is blocked or another screen with a different aperture is required to be replaced, the door assembly 10 is opened, the screen 51 is taken out from the clamping groove 4, and a new screen is inserted to quickly complete the replacement. In order to facilitate the replacement of the screen 51, as shown in fig. 2-3, a plurality of grooves 8 are formed in the outer side wall of the vibration bin 3, which is close to the opening 9, and the grooves 8 are communicated with the clamping grooves 4. The grooves 8 are similar to invisible handles, so that the screen 51 can be pulled more conveniently by hand placement.

As shown in fig. 4-5, a fixed eccentric fling block 112 and an adjustable eccentric fling block 113 are sequentially arranged outside an output shaft of the vibration motor 11, the adjustable eccentric fling block 113 is sleeved on the output shaft, and a retainer ring 111 is arranged at the outermost end of the output shaft of the vibration motor 11. The fixed eccentric throwing block 112 and the adjustable eccentric throwing block 113 are respectively provided with a mounting hole 115, the fixed eccentric throwing block and the adjustable eccentric throwing block can be connected with the tensioning part 114 in a threaded manner after passing through the tensioning part 114, and the tensioning part 114 and the output shaft are tightly clamped by tightening the screw 116, so that the adjustable eccentric throwing block 113 is fixed on the output shaft. In the present embodiment, a fan housing may be selectively installed at both ends of the vibration motor 11 to cover both ends of the vibration motor 11.

When the fixed eccentric throwing block 112 and the adjustable eccentric throwing block 113 are overlapped, namely the angle between the fixed eccentric throwing block 112 and the adjustable eccentric throwing block 113 is zero, the overlapped area is the mostThe exciting force of the vibration motor 11 is maximum; the overlapping area S between the fixed eccentric fling block 112 and the adjustable eccentric fling block 113 _{Folding device} The smaller the exciting force of the vibration motor 11 is, the smaller the exciting force is. Namely, the exciting force of the vibration motor 11 and S _{Folding device} Is proportional to the size of (a). When the adjustable eccentric throwing block 113 is adjusted, the adjustable eccentric throwing blocks 113 of the output shafts at the two sides of the vibration motor 11 are symmetrically adjusted in the same direction and at the same angle. In this embodiment, when the exciting force of the vibration motor 11 needs to be adjusted, the screw 116 is unscrewed to open the tensioning part 114, the adjustable eccentric throwing block 113 can rotate with the output shaft of the vibration motor 11, then the adjustable eccentric throwing block 113 is rotated to change the overlapping area between the adjustable eccentric throwing block 113 and the fixed eccentric throwing block 112, after the angle of the adjustable eccentric throwing block 113 is adjusted according to the actual use condition, the screw 116 is screwed to tighten the tensioning part 114, the tensioning part 114 is tightly attached to the output shaft and limited by the retainer ring 111, so that the adjustable eccentric throwing block 113 is blocked on the output shaft, thereby completing the exciting force adjustment, and preventing the screen 51 from being blocked due to too small exciting force when the sand and stone humidity is large.

As shown in fig. 2, 6 and 7, a discharging hole 121 and an adjusting component are formed in one side, close to the sand screening plate 5, of the feeding hopper 12, a discharging plate 123 is arranged outside the discharging hole 121, and the discharging plate 123 is connected with the adjusting component. Specifically, the adjusting component comprises a threaded hole 122, a bolt 124 and an adjusting slide 124, the adjusting slide 124 is arranged on the discharging plate 123, the threaded hole 122 corresponds to the position of the adjusting slide 124, the bolt 125 sequentially penetrates through the adjusting slide 124 and the threaded hole 122, the bolt 125 is provided with a nut 126, the nut 126 is abutted against the outer side face of the discharging plate 123, and the nut 126 is tightly abutted against the outer side of the discharging plate 123 through tightening the bolt 125, so that the position of the discharging plate 123 can be fixed. The position of the slide way 124 is adjusted through the adjusting bolt 125, so that the distance between the discharging plate 123 and the screen 51 positioned at the uppermost part is changed, and the sediment discharging speed in the feeding hopper 12 can be adjusted, so that the screening effect of the screen 51 can be prevented from being influenced by the too high or too low discharging speed of the feeding hopper 12.

As shown in fig. 2, the door body assembly 10 includes a door plate 101 rotatably connected to a side wall of the vibration bin 3, a decorative plate 102 fixedly connected to an outer side of the door plate 101, a handle 103 provided on the decorative plate 102, and a first magnetic stripe 104 vertically symmetrically embedded in an inner side of the decorative plate 102. The second magnetic stripe 105 is arranged on the outer side wall of the vibration bin 3, the first magnetic stripe 104 and the second magnetic stripe 105 are opposite in magnetism, and the door body assembly 10 closes the opening 9 when the first magnetic stripe 104 and the second magnetic stripe 105 are attracted. When the screen 51 needs to be replaced, the opening 9 can be opened by pulling the handle 103 to separate the first magnetic stripe 104 from the second magnetic stripe 105.

The multilayer screen Sha Jigong of this embodiment is based on the following principle: sand and stone are put into the feed hopper 12, the vibration motor 11 is started, the output shaft of the vibration motor 11 is abutted with the sand screening plate 5 to drive the screen 51 to vibrate, sand and stone are separated through vibration, and separated large-particle stones are conveyed out from the discharge hopper 71 communicated with the screen 51 at the uppermost layer. The screen mesh 51 at the uppermost layer is screened, and then sequentially screened by the screen mesh 51 at the middle layer and the screen mesh 51 at the bottommost layer, and the sand screened by the screen mesh 51 at the bottommost layer is the finest and is conveyed out from the discharge hopper 71 at the bottom. When the sand humidity is too slow to increase the sieving efficiency or too small to sieve too fast, the exciting force of the vibrating motor 11 can be adjusted or the discharging speed of the feeding hopper 12 can be adjusted. Specifically, the screw 116 is unscrewed to open the tensioning part 114, the adjustable eccentric throwing block 113 and the output shaft of the vibration motor 11 can rotate, then the area of overlapping between the adjustable eccentric throwing block 113 and the fixed eccentric throwing block 112 is changed, after the angle of the adjustable eccentric throwing block 113 is adjusted according to the actual use condition, the screw 116 is screwed to tighten the tensioning part 114, the tensioning part 114 is tightly attached to the output shaft and limited by the retainer ring 111, and the adjustable eccentric throwing block 113 is restrained on the output shaft. Or, unscrewing the bolts 125 to prevent the nuts 126 from abutting the outer side of the discharge plate 123, then sliding the discharge plate 123 up and down, adjusting the distance between the discharge plate 123 and the screen 51 positioned at the uppermost position, adjusting the height of the discharge plate 123 according to the actual use condition, and then tightening the bolts 125 to prevent the nuts 126 from abutting the discharge plate 123 on the outer side of the discharge opening 121 again.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims (6)

1. The utility model provides a sand machine is sieved to multilayer, includes support (1), spring (2) and slope vibration storehouse (3) that set up, a plurality of spring (2) set up the top of support (1), vibration storehouse (3) set up a plurality of spring (2) top, its characterized in that:

the bottom of the vibration bin (3) is provided with a vibration motor (11), and the top of the vibration bin (3) is provided with a feed hopper (12); a sand screening plate (5) which is inclined downwards is arranged in the vibration bin (3), one side of the sand screening plate (5) is positioned at the bottom of the feed hopper (12), and the other side of the sand screening plate (5) is connected with a discharge channel (7);

the vibration bin (3) is provided with a clamping groove (4) and a baffle plate (6), and the sand screening plate (5) is clamped in the clamping groove (4) and is erected on the baffle plate (6); an opening (9) is formed in one side of the vibration bin (3), and a door body assembly (10) capable of opening or closing the opening (9) is arranged on the vibration bin (3); the sand screening plate (5) comprises a plurality of screens (51) which are stacked up and down, and the meshes of the screens (51) are reduced layer by layer;

a fixed eccentric throwing block (112) and an adjustable eccentric throwing block (113) are sequentially arranged on an output shaft of the vibration motor (11), the adjustable eccentric throwing block (113) is sleeved on the output shaft, and a check ring (111) is arranged at the outermost end of the output shaft of the vibration motor (11); the fixed eccentric throwing block (112) and the adjustable eccentric throwing block (113) are respectively provided with a mounting hole (115) and a tensioning part (114), and a screw (116) penetrates through the tensioning part (114) and is then connected in the mounting holes (115) in a threaded mode.

2. The multilayer sand screen as claimed in claim 1, wherein: the discharging channel (7) comprises a plurality of discharging hoppers (71), wherein one discharging hopper (71) is communicated with the bottom of the vibrating bin (3), the rest of discharging hoppers (71) are respectively communicated with the screen mesh (51), and the discharging hoppers (71) are staggered.

3. The multilayer sand screening machine according to claim 1, characterized in that a discharge opening (121) and an adjusting component are arranged on one side of the feed hopper (12) close to the sand screening plate (5), a discharge plate (123) is arranged outside the discharge opening (121), and the discharge plate (123) is connected with the adjusting component.

4. A multi-layer sand screening machine according to claim 3, wherein: the adjusting assembly comprises a threaded hole (122), a bolt (125) and an adjusting slide way (124), wherein the adjusting slide way (124) is arranged on the discharging plate (123), the position of the threaded hole (122) corresponds to that of the adjusting slide way (124), the bolt (125) sequentially penetrates through the adjusting slide way (124) and the threaded hole (122), the bolt (125) is provided with a nut (126), and the nut (126) is in butt joint with the outer side face of the discharging plate (123).

5. The multilayer sand screen as claimed in claim 1, wherein: the door body assembly (10) comprises a door plate (101) rotationally connected to the side wall of the vibration bin (3), a decorative plate (102) is fixedly connected to the outer side of the door plate (101), a handle (103) is arranged on the decorative plate (102), and first magnetic strips (104) are symmetrically inlaid on the inner side of the decorative plate (102) up and down; the outer side wall of the vibration bin (3) is provided with a second magnetic stripe (105), and the magnetism of the first magnetic stripe (104) is opposite to that of the second magnetic stripe (105).

6. The multilayer sand screen as claimed in claim 2, wherein: a plurality of grooves (8) are formed in the outer side wall, close to one side of the opening (9), of the vibration bin (3), and the grooves (8) are communicated with the clamping grooves (4).