CN113134468A

CN113134468A - Screening device and crusher

Info

Publication number: CN113134468A
Application number: CN202010057788.5A
Authority: CN
Inventors: 刘冲
Original assignee: Guangdong Bozhilin Robot Co Ltd
Current assignee: Guangdong Bozhilin Robot Co Ltd
Priority date: 2020-01-19
Filing date: 2020-01-19
Publication date: 2021-07-20

Abstract

The invention discloses a screening device and a crusher, wherein the screening device comprises: the separation screen assembly comprises a first hollow member with a first feed port, a screen mesh matched with the first feed port, a rotary driving member for driving the screen mesh to rotate, and a first vibration driving member for driving the screen mesh to vibrate; the screen cloth slope set up in the first hollow member, just be equipped with on the lateral wall of first hollow member with the first discharge gate that the low potential end of screen cloth corresponds. The screening device meets the miniaturization requirement, can be directly installed above the feed inlet of the crusher to reduce the space occupation and expand the application range, has good screening effect, reduces the risk of material blockage of a subsequent belt conveyor by screening the raw materials with soil, and ensures that the screen is not easy to block the materials in the screening process.

Description

Screening device and crusher

Technical Field

The invention relates to the field of screening, in particular to a screening device and a crusher.

Background

Construction waste generated in construction of a construction site is generally treated by adopting a crushing and recycling brick making mode, and the traditional crushing and recycling treatment mode comprises a centralized treatment mode and a treatment mode of moving to an operation site. When adopting the centralized processing mode, need use the freight train to carry the building rubbish of the building site near equipment to the large-scale broken screening equipment scene and handle, because of the large-scale not convenient for transport of screening equipment, so have very big regional limitation, be fit for handling near building site discarded object, it is very high to the logistics transportation cost in slightly far away region. When adopting portable processing, then need transport screening equipment to need handle the building waste place and carry out the crushing treatment brickmaking and utilize, adopt this kind of mode with equipment integration to the wooden handcart on, for convenience ground is transported different places by oneself, need accomplish the miniaturization with equipment in order to satisfy the condition of going on the road.

However, the existing miniaturized screening equipment cannot achieve the screening effect due to the fact that the size of the vibrating screen is too small in the crushing stage and is easy to block materials. The concrete expression is as follows: the raw material fed by the excavator contains a large amount of soil, and is condensed into paste after being sent into a feeding bin for water spraying and dust removal, and the paste is adhered to a feed bin to cause the blockage of a feed inlet; more soil is directly discharged from the crushing outlet and mixed with crushed aggregate to be stacked on the belt to block the belt; aggregate conveyed to the vibrating screen through the belt conveyor contains a large amount of soil, the aggregate is screened by the vibrating screen and falls on the bottom plate, the poor flowability cannot be discharged in time, and the accumulation is too much to cause the stopping of the vibrating screen plugging equipment. Meanwhile, if the content of soil in the crushed fine aggregate is too large, the quality of the finished brick is affected when the crushed fine aggregate is sent into a brick making machine for making bricks.

Disclosure of Invention

Based on the above, the invention provides a screening device and a crusher, aiming at overcoming the defects that in the crushing stage of the prior art, the screening effect cannot be achieved due to the fact that the size of a vibrating screen is too small, and material is easy to block.

The technical scheme is as follows:

a screening device comprising: the separation screen assembly comprises a first hollow member with a first feed port, a screen mesh matched with the first feed port, a rotary driving member for driving the screen mesh to rotate, and a first vibration driving member for driving the screen mesh to vibrate; the screen cloth slope set up in the first hollow member, just be equipped with on the lateral wall of first hollow member with the first discharge gate that the low potential end of screen cloth corresponds.

The screening plant of this technical scheme satisfies the miniaturized requirement, but direct mount occupies in order to reduce the space to breaker feed inlet top, enlarges application scope, and screening effect is good simultaneously, and the raw materials after the earth is fallen in the screening has reduced the putty risk of follow-up belt feeder, and the difficult putty of screening process screen cloth. Specifically, this technical scheme's raw materials enter into to first hollow member and fall to the screen cloth through first feed inlet, the rotation driving piece is rotatory directly or indirectly drive the screen cloth, first vibration driving piece directly or indirectly drive the screen cloth vibration, thereby rotatory screen cloth makes the building stones in the raw materials on the screen cloth possess the centrifugal force of horizontal direction, with building stones gravity, the combined action produces the downward power of inclined plane along the screen cloth from top to bottom, the inclined plane landing along the screen cloth takes advantage of the situation, because the screen cloth is the inclined screen cloth, the event is including the higher high potential end of potential and the lower potential end of potential relative height, the landing direction of building stones is from the high potential end to the lower potential end landing promptly, thereby discharge to the breaker in through the first discharge gate that corresponds the setting with the low potential end. And earth in the raw materials is less because of gravity per se, and the volume is less, then sieves out from the mesh of screen cloth through the vibration effect of screen cloth, separates with the building stones, and the screen cloth of slope also can be followed the inclined plane and continuously sieved earth at the raw materials landing in-process simultaneously, avoids blockking up the screen cloth. This technical scheme is through setting up the slope screen cloth, and the simultaneous combined application vibrating force, gravity and centrifugal force utilize the building stones and earth to be poor with the great gravity that exists between the two, make building stones and earth differ great at the motion trail of screening in-process to realize the full separation, improve screening efficiency and screening effect, avoid the screen cloth to block up simultaneously.

In one embodiment, a rotating shaft connected with the rotary driving member is arranged in the first hollow member, and the first hollow member is connected with the rotating shaft.

In one embodiment, the screen separator further comprises a material guiding assembly matched with the separating screen assembly, and the material guiding assembly is positioned below the screen.

In one embodiment, the material guiding assembly comprises a material guiding member provided with a conical material guiding opening, and the material guiding direction of the conical material guiding opening is from a large-diameter end to a small-diameter end.

In one embodiment, the material guide assembly comprises a second hollow member with a second feeding hole, and a material guide plate obliquely arranged in the second hollow member; and a second discharge hole corresponding to the low potential end of the material guide plate is formed in the side wall of the material guide assembly.

In one embodiment, the material guiding assembly further comprises a second vibration driving member for driving the material guiding plate to vibrate.

In one embodiment, the material guiding assembly further comprises a first supporting structure for supporting the second hollow member, one end of the first supporting structure is connected with the second hollow member, and the other end of the first supporting structure is provided with an elastic member.

In one embodiment, the separator further comprises a hollow shaft sleeve which is arranged in the second hollow part and connected with the material guide assembly, and the rotating shaft extends out of the separation screen assembly and penetrates into the hollow shaft sleeve; and a connecting bearing is arranged between the hollow shaft sleeve and the rotating shaft.

In one embodiment, the device further comprises a guide sleeve assembly matched with the first discharge port, and the guide sleeve assembly is arranged along the periphery of the first hollow part.

In one embodiment, the guide sleeve assembly comprises a cylindrical sleeve provided with an opening, and a baffle plate matched with the opening.

In one embodiment, a material guiding protective cover is arranged on the inner wall of the cylindrical sleeve.

In one embodiment, the guide sleeve assembly further comprises a second support structure for supporting the cylinder sleeve.

The technical scheme also provides a crusher, which comprises the screening device, a crushing cabin matched with the screening device and a crushing driving piece for driving the crushing cabin to operate. The screening plant of this technical scheme satisfies the miniaturized requirement, but direct mount occupies in order to reduce the space to breaker feed inlet top, enlarges application scope, and screening effect is good simultaneously, and the raw materials after the earth is fallen in the screening has reduced the putty risk of follow-up belt feeder, and the difficult putty of screening process screen cloth.

Drawings

FIG. 1 is a schematic diagram of a screening device according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of FIG. 1;

FIG. 3 is a schematic illustration of the construction of the screen assembly of FIG. 1;

FIG. 4 is a schematic view of the material guiding assembly shown in FIG. 1;

FIG. 5 is a bottom view of FIG. 4;

FIG. 6 is a first schematic structural view of the guide sleeve assembly of FIG. 1;

fig. 7 is a structural schematic diagram of the guide sleeve assembly in fig. 1.

Description of reference numerals:

10. a separation screen assembly; 11. a first hollow member; 111. a first feed port; 112. a first discharge port; 113. a rotating shaft; 114. reinforcing ribs; 12. screening a screen; 13. a rotary drive member; 131. a rotating electric machine; 132. a first pulley; 133. a second pulley; 134. tensioning the belt; 20. a material guiding assembly; 21. a second hollow member; 211. a second feed port; 212. a second discharge port; 22. a material guide plate; 23. a second vibratory drive; 24. a first support structure; 25. an elastic member; 26. a hollow shaft sleeve; 27. connecting a bearing; 30. a guide sleeve assembly; 31. a cylindrical sleeve; 32. a baffle plate; 33. a material guiding shield; 34. a second support structure.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The terms "first" and "second" used herein do not denote any particular order or quantity, but rather are used to distinguish one element from another.

Example 1

A screening device as in figures 1-3 comprising: a separation screen assembly 10, wherein the separation screen assembly 10 includes a first hollow member 11 having a first feeding hole 111, a screen 12 configured to be engaged with the first feeding hole 111 and disposed in the first hollow member 11 and connected to an inner wall of the first hollow member 11, a rotary driving member 13 configured to drive the screen 12 to rotate or to drive the first hollow member 11 to rotate, and a first vibration driving member (not shown in the drawings) configured to drive the screen 12 to vibrate or drive the first hollow member 11 to vibrate; the screen 12 is obliquely arranged in the first hollow member 11, and a first discharge hole 112 corresponding to the low potential end of the screen 12 is arranged on the side wall of the first hollow member 11. Since the first hollow member 11 is connected to the screen 12, the screen 12 rotates when either one of them is driven to rotate, and similarly, the screen 12 vibrates when either one of them is driven to vibrate.

The screening plant of this embodiment satisfies the miniaturized requirement, but direct mount occupies in order to reduce the space to breaker feed inlet top, enlarges application scope, and screening effect is good simultaneously, and the raw materials after the earth is fallen in the screening has reduced the putty risk of follow-up belt feeder, and the difficult putty of screening process screen cloth 12. Specifically, the raw material of the present embodiment enters the first hollow member 11 through the first feeding hole 111 and falls to the screen 12, the rotary driving member 13 directly or indirectly drives the screen 12 to rotate, the first vibration driving member directly or indirectly drives the screen 12 to vibrate, so that the rotating screen 12 causes the stone in the raw material on the screen 12 to have a centrifugal force in a horizontal direction, and the stone cooperates with the stone gravity and the vertical vibration force to generate a downward force along the inclined surface of the screen 12, and then slides down along the inclined surface of the screen 12, and the screen 12 is the inclined screen 12, so that the raw material includes a high potential end with a higher potential and a low potential end with a relatively lower potential, that is, the stone slides down from the high potential end to the low potential end, and is discharged into the crusher through the first discharging hole 112 corresponding to the low potential end. And the earth in the raw materials is less because of gravity per se, and the volume is less, then sieves out from the mesh of screen cloth 12 through the vibration effect of screen cloth 12, separates with the building stones, and the screen cloth 12 of slope simultaneously also can be followed the inclined plane and continuously sieves earth at the raw materials landing in-process, avoids blockking up screen cloth 12. This embodiment is through setting up slope screen cloth 12, and the simultaneous combined application vibrating force, gravity and centrifugal force utilize the great gravity that exists between the building stones and the earth the two poor, make building stones and earth differ great at the motion trail of screening in-process to realize the full separation, improve screening efficiency and screening effect, avoid screen cloth 12 to block up simultaneously.

In this embodiment, the first hollow member 11 is driven to rotate so as to indirectly drive the screen 12 to rotate, a rotating shaft 113 connected with the rotary driving member 13 is disposed in the first hollow member 11, and the first hollow member 11 is connected with the rotating shaft 113. Specifically, the first hollow member 11 is provided with the reinforcing ribs 114 from the edge of the cylinder wall to the axis direction, the rotating shaft 113 is connected to the first hollow member 11 through the reinforcing ribs 114, in this embodiment, the rotating shaft 113 and the first hollow member 11 are coaxially arranged, the reinforcing ribs 114 are arranged at the upper end and the lower end of the first hollow member 11, the number of the reinforcing ribs 114 at each end is three, and the three reinforcing ribs 114 are uniformly arranged along the circumferential direction of the first hollow member 11 at intervals.

This embodiment the rotary driving member includes the rotating electrical machines 131 who is connected with first belt pulley 132, and the cover is located second belt pulley 133 in the pivot 113, and encircle first belt pulley 132 and second belt pulley 133 set up the tensioning belt 134 that is used for the tensioning and transmits moment, through the rotation of rotating electrical machines 131, drive the second belt pulley 133 who is connected with pivot 113 and rotate to drive pivot 113 is rotatory.

This embodiment first vibration driving piece is vibrating motor, just first vibration driving piece is located the outer wall of first hollow piece 11 to can realize the purpose of indirect drive screen cloth 12 vibration, avoid simultaneously the interior building stones of first hollow piece 11 or earth to the damage or the pollution of first vibration driving piece and influence the life of first vibration driving piece.

In addition, the screen 12 of the present embodiment is detachably connected to the first hollow member 11, so that the screen 12 of different specifications can be replaced according to specific conditions, the mesh size of the screen 12 can be changed, and the screen is suitable for screening aggregates at different stages or on different occasions.

As shown in fig. 1 and 2 in conjunction with fig. 4 and 5, after soil in a raw material is screened by the screen 12, in order to make the soil fall to a designated area, the present embodiment further includes a material guide assembly 20 cooperating with the separating screen assembly 10 and guiding the screened soil, wherein the material guide assembly 20 is located below the screen 12.

The material guiding assembly 20 of the present embodiment includes a second hollow member 21 having a second feeding hole 211, and a material guiding plate 22 obliquely disposed in the second hollow member 21; the material guide plate 22 is connected to the second hollow member 21, and a second material outlet 212 corresponding to the low potential end of the material guide plate 22 is disposed on the side wall of the material guide assembly 20. When soil is screened out from the screen 12, the soil falls onto the material guide plate 22 through the second material inlet 211, and the material guide plate 22 is inclined, so that when soil falls onto the material guide plate 22 from the screen 12, the soil slides down along the slope of the material guide plate 22 due to self gravity. Because the material guiding plate 22 is disposed obliquely, it includes a high potential end with a higher potential and a low potential end with a lower potential, i.e. the soil slides down from the high potential end to the low potential end, so as to be discharged to a designated position through the second discharge hole 212 disposed corresponding to the low potential end.

In the present embodiment, the first hollow member 11 and the second hollow member 21 each have a hollow cylindrical structure.

In order to improve the material guiding efficiency of the material guiding plate 22 and prevent soil from being accumulated on the material guiding plate 22, the material guiding assembly 20 of the present embodiment further includes a second vibration driving member 23 for driving the material guiding plate 22 to vibrate. The vibration force of the guide plate 22 is matched with the inclined surface which is inclined downwards, so that the soil is better discharged to a designated position along the inclined surface. Specifically, in this embodiment, the second vibration driving member 23 is a vibration motor, and the second vibration driving member 23 is disposed on one side of the material guiding plate 22 opposite to the screen 12, that is, the second vibration driving member 23 is not in contact with soil, so as to avoid the soil from damaging or polluting the second vibration driving member 23 and affecting the service life of the second vibration driving member 23.

In this embodiment, the material guiding assembly 20 further includes a first supporting structure 24 for supporting the second hollow member 21, one end of the first supporting structure 24 is connected to the second hollow member 21, and the other end of the first supporting structure 24 is provided with an elastic member 25, that is, the end provided with the elastic member 25 is the end contacting with the ground. In this embodiment, the supporting legs are used as the first supporting structure 24, the return spring is used as the elastic member 25, the number of the supporting legs is at least two, and the supporting legs are arranged at intervals along the circumferential direction of the second hollow member 21. Since the second hollow member 21 is driven to vibrate by the vibration of the second vibration driving member 23, in order to avoid the displacement of the material guiding assembly 20 caused by the vibration process or the impact of the material guiding assembly 20 on the ground being too large to affect the normal use of the material guiding assembly, the present embodiment provides a return spring on the supporting foot to serve as a buffer between the material guiding assembly 20 and the ground.

In order to reduce the size of the separation screen assembly 10, the external support structure thereof is reduced, and the separation screen assembly is supported by the guide assembly 20. Therefore, the material guiding assembly 20 of the present embodiment further includes a hollow shaft sleeve 26 disposed in the second hollow member 21 and connected to the material guiding assembly 20, the hollow shaft sleeve 26 is connected to the material guiding plate 22, and specifically, the hollow shaft sleeve 26 is disposed on the material guiding plate 22 in a penetrating manner. The rotating shaft 113 extends out of the separating screen assembly 10 and penetrates into the hollow shaft sleeve 26; a connecting bearing 27 is arranged between the hollow shaft sleeve 26 and the rotating shaft 113. Therefore, the assembly of the material guiding assembly 20 and the separating screen assembly 10 is completed through the cooperation between the rotating shaft 113 and the hollow shaft sleeve 26, and the material guiding plate 22 does not rotate along with the rotation of the rotating shaft 113. In addition, since the rotation shaft 113 is indirectly connected to the guide plate 22, when the guide plate 22 vibrates, the rotation shaft 113 transmits the vibration to the first hollow member 11 connected to the rotation shaft 113, thereby further enhancing the vibration effect of the screen 12 in the first hollow member 11. Therefore, the cooperation between the rotating shaft 113 and the hollow shaft sleeve 26 in the present embodiment not only realizes the supporting function of the separating screen assembly 10, but also strengthens the vibration effect of the screen 12.

As shown in fig. 1 and 2 in combination with fig. 6 and 7, the stone discharged from the first discharge port 112 does not fly out of a predetermined range due to centrifugal force, falls to a designated position, and guarantees personal safety of field personnel. This embodiment still include with first discharge gate 112 complex uide bushing assembly 30, uide bushing assembly 30 is followed the periphery of first hollow 11 sets up, just uide bushing assembly 30 with the coaxial setting of first hollow 11 to when first hollow 11 rotates to carry out the screening of building stones and discharge, building stones are blocked by uide bushing assembly 30 after discharging from first discharge gate 112, and along the wall landing of uide bushing assembly 30 to in the breaker.

The guide sleeve assembly 30 includes a cylindrical sleeve 31 provided with an opening, and a baffle 32 fitted to the opening. The cylinder cover 31 with the coaxial setting of first hollow member 11, and through baffle 32 with the cooperation of cylinder cover 31 realizes the switching setting of cylinder cover 31, promptly the baffle 32 acts as the effect of the door body, when breaking down, conveniently opens baffle 32 and maintains interior equipment.

In addition, since the centrifugal force of the stone screening causes the stone to be discharged out of the first discharge port 212 at an excessive speed, in order to prevent the stone from wearing the cylindrical sleeve 31, the inner wall of the cylindrical sleeve 31 is provided with a guide shield 33. In this embodiment, the material guiding shield 33 is made of an elastic soft material, such as a silica gel layer, a rubber layer, etc., so that the cylindrical sleeve 31 is protected, and noise generated by stone striking the material guiding shield 33 is reduced.

The guide sleeve assembly 30 of this embodiment further comprises a second support structure 34 for supporting the cylinder sleeve 31. The guide sleeve assembly 30 is fixed on the crusher through the second support structure 34, the second support structure 34 is at least two support legs, and the at least two support legs are arranged at intervals along the circumferential direction of the cylindrical sleeve 31.

This embodiment also provides a crusher comprising a screening device as defined in any one of the preceding claims, a crushing bin for cooperating with the screening device, and a crushing drive for driving the operation of the crushing bin. The crushing cabin receives the stones screened by the screening device, and the stones are crushed by the crushing driving piece to enter the next process. The screening plant of this embodiment satisfies the miniaturized requirement, but direct mount occupies in order to reduce the space to breaker feed inlet top, enlarges application scope, and screening effect is good simultaneously, and the raw materials after the earth is fallen in the screening has reduced the putty risk of follow-up belt feeder, and the difficult putty of screening process screen cloth 12. The screening device according to the present embodiment may be integrated into the inlet of a box crusher or a jaw crusher, forming an integrated crushing plant.

Example 2

The present embodiment is similar to the embodiment 1 in principle and structure, except that the material guiding assembly 20 of the present embodiment includes a material guiding member having a conical material guiding opening, and the material guiding direction of the conical material guiding opening is from a large diameter end to a small diameter end. That is, the guide assembly 20 has a funnel-like structure so as to guide the soil screened from the screen 12 to a designated position.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A screening device, comprising: the separation screen assembly comprises a first hollow member with a first feed port, a screen mesh matched with the first feed port, a rotary driving member for driving the screen mesh to rotate, and a first vibration driving member for driving the screen mesh to vibrate; the screen cloth slope set up in the first hollow member, just be equipped with on the lateral wall of first hollow member with the first discharge gate that the low potential end of screen cloth corresponds.

2. A screening apparatus according to claim 1, wherein a rotatable shaft is provided within the first hollow member and is connected to the rotatable drive member, the first hollow member being connected to the rotatable shaft.

3. A screening device according to claim 2, further comprising a material guide assembly cooperating with the shaker screen assembly, the material guide assembly being located below the screen.

4. A screening device according to claim 3, wherein said material guiding assembly includes a material guiding member having a tapered material guiding opening, the material guiding direction of said tapered material guiding opening being from a larger diameter end to a smaller diameter end.

5. A screening device according to claim 3, wherein the material guide assembly comprises a second hollow member having a second feed opening, and a material guide plate arranged obliquely within the second hollow member; and a second discharge hole corresponding to the low potential end of the material guide plate is formed in the side wall of the material guide assembly.

6. A screening device according to claim 5, wherein the material guide assembly further includes a second vibration drive for driving the material guide plate into vibration.

7. A screening apparatus according to claim 5, wherein the material guide assembly further comprises a first support structure for supporting the second hollow member, one end of the first support structure being connected to the second hollow member and the other end of the first support structure being provided with a resilient member.

8. A screening apparatus as claimed in claim 5, further comprising a hollow sleeve disposed within said second hollow member and connected to said material guiding assembly, said shaft extending out of said separator screen assembly and into said hollow sleeve; and a connecting bearing is arranged between the hollow shaft sleeve and the rotating shaft.

9. A screening device according to any one of claims 1 to 8, further comprising a guide sleeve assembly cooperating with the first outlet, the guide sleeve assembly being disposed along the periphery of the first hollow member,

the guide sleeve assembly comprises a cylindrical sleeve with an opening and a baffle matched with the opening.

10. A crusher comprising a screening device as claimed in any one of claims 1 to 9, a crushing chamber for cooperation with said screening device, and a crushing drive for driving operation of said crushing chamber.