CN211802219U - Screening cylinder and rotary screening hopper - Google Patents

Abstract

A screening cylinder and a rotary screening hopper relate to the technical field of screening hoppers. This screening section of thick bamboo is including the first screen cloth and the second screen cloth that all are the cylindrical structure, and the lateral wall of first screen cloth and second screen cloth all is provided with a plurality of sieve meshes, and the second screen cloth sets up in the inboard of first screen cloth with the axle center, and first screen cloth rotates with the second screen cloth is relative to the sieve mesh that makes the sieve mesh of first screen cloth and second screen cloth coincide or crisscross. The screening barrel and the rotary screening hopper can change the aperture size of the actual working sieve pore of the screening barrel, and are suitable for the conditions of different sizes of various material particles in construction operation.

Description

Screening cylinder and rotary screening hopper

Technical Field

The utility model relates to a screening fill technical field particularly, relates to a screening section of thick bamboo and rotary screen fill.

Background

The rotary screening bucket is an indispensable excavating tool in civil engineering, and common rotary screening buckets are provided with conventional buckets, so that the rotary screening buckets have the main function of excavating earth and stones on site and loading the earth and the stones on the site. However, in some earthwork projects, excavated earthwork needs to be screened on site, pebbles exceeding the particle size standard only need to be transported away, and the remaining fine soil needs to be backfilled on site, so that the construction requirements cannot be realized for a common rotary screening hopper, manual screening is needed, and the workload is large.

At present, a bucket with a screening function, namely a rotary screening bucket, is also arranged on the market, the bucket is driven by a hydraulic motor, materials enter a screen through the front end of the screening bucket, and the separation of the materials with different sizes is realized under the action of rotary centrifugal force. However, the screen mesh of the screening cylinder at the present stage is single in size and fixed, and the actual conditions of different sizes of various material particles in operation cannot be met. If the machine is stopped and the screen is replaced, more manpower and time are consumed, and the working efficiency is seriously influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a screening section of thick bamboo and rotatory screening fill can change the aperture size of the sieve mesh of the actual work of screening section of thick bamboo, is applicable to the different condition of various material particle size in the construction operation.

The embodiment of the utility model is realized like this:

an aspect of the embodiment of the utility model provides a screening section of thick bamboo, including first screen cloth and the second screen cloth that all is the cylinder structure, first screen cloth with the lateral wall of second screen cloth all is provided with a plurality of sieve meshes, the second screen cloth with the axle center set up in the inboard of first screen cloth, first screen cloth with the second screen cloth rotates relatively, so that the sieve mesh of first screen cloth with the sieve mesh coincidence or the crisscross of second screen cloth. The screening cylinder can change the aperture size of the sieve pores of the actual work of the screening cylinder, and is suitable for the conditions of different sizes of various material particles in construction operation.

Optionally, in the preferred embodiment of the present invention, the portable electronic device further includes a first annular rail and a second annular rail which are relatively disposed and nested with each other, the second annular rail is far away from one side of the first annular rail and fixedly connected to the second screen, the first annular rail is far away from one side of the second annular rail and outwardly extends along the radial direction to form a first connecting portion, the first connecting portion is fixedly connected to the first screen, and the first annular rail and the second annular rail rotate relatively to make the first screen and the second screen rotate relatively.

Optionally, in a preferred embodiment of the present invention, an annular protrusion is disposed on one side of the first annular rail close to the second annular rail, a first annular groove is disposed on one side of the second annular rail close to the first annular rail, and the annular protrusion is accommodated in the first annular groove.

Optionally, in the preferred embodiment of the present invention, a plurality of wedge grooves are uniformly distributed on the annular protrusion, a plurality of wedge blocks are uniformly distributed in the annular groove, and the wedge blocks are all accommodated in the wedge grooves.

Optionally, in a preferred embodiment of the present invention, the circumferential apertures of the sieve holes of the first sieve are equal to the circumferential apertures of the sieve holes of the second sieve, and the circumferential apertures of the sieve holes of the first sieve are equal to an integral multiple of the circumferential arc length of the wedge.

Optionally, in the preferred embodiment of the present invention, the portable terminal further includes a first frame having a circular ring structure, the first frame is disposed outside the first circular track with the same axis, one side of the first frame and the first screen fixed connection, the other side of the first frame extend outward along the radial direction to form a second connection portion, and the first connection portion and the second connection portion are fixed connected.

Optionally, in the preferred embodiment of the present invention, the portable electronic device further includes a second frame and a third frame both having circular ring structures, the second frame and the first screen are fixedly connected to one side of the first frame, the third frame and the second screen are fixedly connected to one side of the second annular rail, one side of the second frame close to the second screen is provided with a second annular groove, the third frame is accommodated in the second annular groove, and the first annular rail and the second annular rail rotate relatively, so that the third frame and the second annular groove rotate relatively.

Optionally, in the preferred embodiment of the present invention, the third screen is a conical structure and a fourth frame fixedly connected to the large diameter end of the third screen, the third screen is coaxially disposed with the first screen, the fourth frame is a circular ring structure, and the second connecting portion, the first connecting portion and the fourth frame are sequentially and fixedly connected.

Optionally, in a preferred embodiment of the present invention, the driving device further includes a controller and a driving member electrically connected to the controller, the driving member is in transmission connection with the first endless track, and the controller is configured to control the driving member.

The embodiment of the utility model provides a on the other hand provides a rotatory screening fill, including foretell screening section of thick bamboo. The screening cylinder can change the aperture size of the sieve pores of the actual work of the screening cylinder, and is suitable for the conditions of different sizes of various material particles in construction operation.

The utility model discloses beneficial effect includes:

this screening section of thick bamboo includes first screen cloth and second screen cloth, first screen cloth and second screen cloth all are the cylindrical structure, the lateral wall of first screen cloth and the lateral wall of second screen cloth are provided with a plurality of sieve meshes, the second screen cloth sets up in the inboard of first screen cloth with the axle center, consequently, when screening material granule through screening section of thick bamboo in the construction operation, the material granule gets into inside the screening section of thick bamboo by in the second screen cloth, and first screen cloth and second screen cloth rotate relatively to make the sieve mesh of first screen cloth and the sieve mesh coincidence or the crisscross of second screen cloth. This screening section of thick bamboo can be through the relative rotation of first screen cloth and second screen cloth for the mesh of first screen cloth and the aperture coincidence of second screen cloth or crisscross, thereby change the aperture size of the actual work's of screening section of thick bamboo the mesh, and then be applicable to the different condition of various material particle size in the construction operation.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is one of schematic structural diagrams of a sieving cylinder according to an embodiment of the present invention;

fig. 2 is a second schematic structural view of a sieving cylinder according to an embodiment of the present invention;

fig. 3 is a third schematic structural view of a sieving cylinder according to an embodiment of the present invention;

FIG. 4 is a cross-sectional view taken at A-A of FIG. 3;

fig. 5 is a schematic structural diagram of a third frame, a second screen, a first circular track and a second circular track provided in an embodiment of the present invention.

Icon: 100-screening cylinder; 10-a first screen; 11-a first frame; 111-a second connection; 12-a second frame; 121-a second annular groove; 20-a second screen; 21-a third frame; 30-a first endless track; 31-an annular projection; 311-wedge groove; 32-a first connection; 40-a second endless track; 41-a first annular groove; 411-wedge block.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be internal to both elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 and 2, the present embodiment provides a screening drum 100, which includes a first screen 10 and a second screen 20 both having a cylindrical structure, wherein a plurality of screen holes are formed in sidewalls of the first screen 10 and the second screen 20, and the second screen 20 is coaxially disposed inside the first screen 10, so that when material particles are screened through the screening drum 100 during a construction operation, the material particles enter the screening drum 100 from inside of the second screen 20, and when the first screen 10 and the second screen 20 rotate relatively, the screen holes of the first screen 10 coincide with or are staggered with each other with respect to the screen holes of the second screen 20, thereby changing an aperture size of the screen holes of the screening drum 100 during an actual operation, and further being applicable to a situation where various material particles are different in size during the construction operation.

It should be noted that, in the present embodiment, the plurality of sieve holes on the side wall of the first sieve screen 10 and the side wall of the second sieve screen 20 are uniformly arranged, so that the aperture sizes of the plurality of sieve holes of the first sieve screen 10 are the same, and the aperture sizes of the plurality of sieve holes of the second sieve screen 20 are the same, so that the sieving cylinder 100 can uniformly act on various materials in the construction operation.

Secondly, assuming that the rotation direction of the relative rotation of the first screen 10 and the second screen 20 is always along a certain direction (for example, clockwise direction or counterclockwise direction), in the whole movement process of the relative rotation of the first screen 10 and the second screen 20, the sieve holes of the first screen 10 and the sieve holes of the second screen 20 gradually change from overlapping to interleaving, and then gradually change to overlapping, and enter a cyclic process; alternatively, the holes of the first screen 10 and the holes of the second screen 20 gradually become coincident from being staggered and then become staggered, and the process enters a repeated circulation process.

Third, the actual size of the holes in the screen cylinder 100 is also changed during the "overlap-interlace-overlap" and "interlace-overlap" cycles. In this case, when the mesh of the first screen 10 coincides with the mesh of the second screen 20, the aperture of the actual working mesh of the classifying cylinder 100 is maximized. Therefore, when the material particles are screened by the screening drum 100 in the construction operation, the aperture size of the actually working screen aperture of the screening drum 100 needs to be determined according to the size of the material particles, and then the aperture of the actually working screen aperture of the screening drum 100 meets the actual requirement of the construction operation through the relative rotation between the first screen mesh 10 and the second screen mesh 20.

As described above, the screening drum 100 includes the first screen 10 and the second screen 20, both the first screen 10 and the second screen 20 are cylindrical structures, the side wall of the first screen 10 and the side wall of the second screen 20 are provided with a plurality of screen holes, and the second screen 20 is coaxially disposed inside the first screen 10, so that when material particles are screened by the screening drum 100 in a construction operation, the material particles enter the screening drum 100 from the inside of the second screen 20, and the first screen 10 and the second screen 20 rotate relatively, so that the screen holes of the first screen 10 coincide with or are staggered with the screen holes of the second screen 20. This screening section of thick bamboo 100 can be through the relative rotation of first screen cloth 10 and second screen cloth 20 for the mesh of first screen cloth 10 and the aperture coincidence of second screen cloth 20 or crisscross, thereby change the aperture size of the mesh of the actual work of screening section of thick bamboo 100, and then be applicable to the different condition of various material particle size in the construction operation.

Regarding the specific form of the relative rotation between the first screen 10 and the second screen 20, in this embodiment, the first screen 10 is fixed and the second screen 20 is rotated, but in other embodiments, the first screen 10 may be rotated and the second screen 20 may be fixed, as long as the first screen 10 and the second screen 20 can be rotated relatively, so that the screen holes of the first screen 10 coincide with or are staggered with the screen holes of the second screen 20.

Specifically, referring to fig. 3 and 4, the screening cylinder 100 further includes a first annular rail 30 and a second annular rail 40 that are disposed opposite to each other and nested with each other, a side of the second annular rail 40 away from the first annular rail 30 is fixedly connected to the second screen 20, a side of the first annular rail 30 away from the second annular rail 40 extends outward in a radial direction to form a first connection portion 32, the first connection portion 32 is fixedly connected to the first screen 10, and the first annular rail 30 and the second annular rail 40 rotate relative to each other, so that the first screen 10 and the second screen 20 rotate relative to each other.

In the present embodiment, an annular protrusion 31 is disposed on a side of the first annular rail 30 close to the second annular rail 40, a first annular groove 41 is disposed on a side of the second annular rail 40 close to the first annular rail 30, and the annular protrusion 31 is received in the first annular groove 41. Of course, in other embodiments, a first annular groove 41 may be disposed on a side of the first annular rail 30 close to the second annular rail 40, an annular protrusion 31 may be disposed on a side of the second annular rail 40 close to the first annular rail 30, and the annular protrusion 31 may be received in the first annular groove 41. Compared with the latter, the arrangement in this embodiment can make the material particles stopped by the first annular groove 41 when the material particles are screened by the screening drum 100 in the construction operation, so as to prevent the material particles from entering between the first annular rail 30 and the second annular rail 40 and affecting the relative rotation between the first annular rail 30 and the second annular rail 40.

Referring to fig. 5, in order to avoid that the first screen cloth 10 and the second screen cloth 20 still rotate relatively when the material particles are screened by the screening drum 100 during the construction operation, in the embodiment, the annular protrusion 31 is uniformly provided with a plurality of wedge-shaped slots 311, a plurality of wedge-shaped blocks 411 are uniformly provided in the annular groove, and the wedge-shaped blocks 411 are all accommodated in the wedge-shaped slots 311, so that when the wedge-shaped blocks 411 are accommodated in the wedge-shaped slots 311, the first screen cloth 10 and the second screen cloth 20 cannot rotate relatively. Of course, in other embodiments, the annular protrusion 31 may have a plurality of wedge blocks 411 uniformly distributed thereon, the annular groove has a plurality of wedge grooves 311 uniformly distributed therein, and the wedge blocks 411 are all accommodated in the wedge grooves 311.

In order to limit the variation of the size of the apertures of the actually operating holes of the sizing drum 100 caused by the relative rotation between the first and second circular rails 30 and 40, in the present embodiment, the circumferential apertures of the holes of the first screen 10 are equal to the circumferential apertures of the holes of the second screen 20, and the circumferential apertures of the holes of the first screen 10 are equal to the integral multiple of the circumferential arc length of the wedge 411.

Preferably, the circumferential aperture of the holes of the first screen mesh 10 is equal to twice the circumferential arc length of the wedge blocks 411, so that when a certain wedge block 411 moves from a certain wedge groove 311 into the next wedge groove 311, the aperture size of the actually working hole of the screening drum 100 is reduced to half of the aperture size of the hole of the first screen mesh 10; when the wedge 411 moves further into the next wedge slot 311, the actual size of the holes of the screen cylinder 100 is equal to the size of the holes of the first screen 10. The advantage of so designing is that can make the aperture size of the actual work sieve mesh of all screening section of thick bamboo 100 can both keep unanimous at any moment to avoid when some sieve meshes are less some sieve meshes bigger again (for example when the integral multiple is three times, the sieve mesh of first screen cloth 10 is crisscross with the sieve mesh of second screen cloth 20, can make the aperture size of the actual work sieve mesh of some screening section of thick bamboo 100 equal to 1/3 of the aperture size of the sieve mesh of first screen cloth 10, and the aperture size of the actual work sieve mesh of some screening section of thick bamboo 100 equals 2/3 of the aperture size of the sieve mesh of first screen cloth 10), lead to screening section of thick bamboo 100 can not evenly screen the material granule.

As shown in fig. 1, 3 and 4, in the present embodiment, the classifying cylinder 100 further includes a first frame 11 having a circular ring structure, the first frame 11 is coaxially disposed outside the first circular rail 30, one side of the first frame 11 is fixedly connected to the first screen 10, the other side of the first frame 11 extends outward in a radial direction to form a second connection portion 111, and the first connection portion 32 is fixedly connected to the second connection portion 111.

As shown in fig. 4, in the present embodiment, the sieving cylinder 100 further includes a second frame 12 and a third frame 21 both having circular ring structures, the second frame 12 is fixedly connected to a side of the first screen 10 away from the first frame 11, the third frame 21 is fixedly connected to a side of the second screen 20 away from the second annular rail 40, a second annular groove 121 is disposed on a side of the second frame 12 close to the second screen 20, the third frame 21 is accommodated in the second annular groove 121, and the first annular rail 30 and the second annular rail 40 rotate relatively to enable the third frame 21 and the second annular groove 121 to rotate relatively.

It should be understood by those skilled in the art that when the wedge-shaped groove 311 and the wedge-shaped block 411 for limiting the relative rotation between the first screen cloth 10 and the second screen cloth 20 are additionally arranged in the first annular rail 30 and the second annular rail 40, in order to avoid the interference between the third frame 21 and the second annular groove 121 when the wedge-shaped block 411 moves in the wedge-shaped groove 311, the depth of the second annular groove 121 may be designed to be larger than the height of the third frame 21, and the difference between the two is determined to satisfy that the interference between the third frame 21 and the second annular groove 121 still cannot occur when the wedge-shaped block 411 moves to the highest point along the wedge-shaped groove 311.

In this embodiment, the sieving cylinder 100 further includes a third screen (not shown) having a conical structure and a fourth frame (not shown) fixedly connected to a large-diameter end of the third screen, the third screen and the first screen 10 are coaxially disposed, the fourth frame has a circular ring structure, and the second connecting portion 111, the first connecting portion 32 and the second frame 12 are sequentially and fixedly connected. In this embodiment, the plurality of bolts are uniformly arranged along the second connecting portion 111, and the screw of each bolt sequentially penetrates through the second connecting portion 111, the first connecting portion 32 and the fourth frame, and is matched with the nut of the bolt to realize fixed connection.

Further, the screening drum 100 further includes a controller and a driving member electrically connected to the controller, the driving member is in transmission connection with the first circular track 30, and the controller is used for controlling the driving member, so as to realize intelligent control of the relative rotation of the first screen cloth 10 and the second screen cloth 20.

The application also provides a rotary screening hopper. The rotary sifting hopper provided by the embodiment comprises the sifting cylinder 100. Since the structure and advantageous effects of the classifying cylinder 100 have been described in detail in the foregoing embodiments, no further description is given here.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (9)

1. A screening cylinder is characterized by comprising a first screen and a second screen which are both in a cylindrical structure, wherein the side walls of the first screen and the second screen are provided with a plurality of screen holes, the second screen is coaxially arranged on the inner side of the first screen, and the first screen and the second screen rotate relatively to each other, so that the screen holes of the first screen are overlapped or staggered with the screen holes of the second screen;

still including relative setting and the first endless track and the second endless track of mutual nested, the second endless track keep away from first endless track's one side with second screen cloth fixed connection, first endless track keeps away from second endless track's one side has first connecting portion along the radial direction outside extension, first connecting portion with first screen cloth fixed connection, first endless track with second endless track relatively rotates, so that first screen cloth with second screen cloth relatively rotates.

2. The sizing cartridge of claim 1, wherein a side of the first annular track adjacent the second annular track is provided with an annular projection, and a side of the second annular track adjacent the first annular track is provided with a first annular groove, the annular projection being received within the first annular groove.

3. The sizing drum of claim 2, wherein a plurality of wedge-shaped grooves are uniformly formed in the annular protrusion, a plurality of wedge-shaped blocks are uniformly formed in the annular groove, and the wedge-shaped blocks are accommodated in the wedge-shaped grooves.

4. The sizing drum of claim 3, wherein the circumferential apertures of the screen openings of the first screen are equal to the circumferential apertures of the screen openings of the second screen, and the circumferential apertures of the screen openings of the first screen are equal to an integer multiple of the circumferential arc length of the wedge.

5. The sizing cylinder according to claim 1, further comprising a first frame having a circular ring structure, wherein the first frame is coaxially disposed outside the first annular track, one side of the first frame is fixedly connected to the first screen, the other side of the first frame extends outward in a radial direction to form a second connection portion, and the first connection portion is fixedly connected to the second connection portion.

6. The sizing drum of claim 5, further comprising a second frame and a third frame both having circular ring structures, wherein the second frame is fixedly connected to a side of the first screen remote from the first frame, the third frame is fixedly connected to a side of the second screen remote from the second annular rail, a second annular groove is provided on a side of the second frame close to the second screen, the third frame is received in the second annular groove, and the first annular rail and the second annular rail rotate relative to each other, so that the third frame and the second annular groove rotate relative to each other.

7. The sizing cylinder of claim 5, further comprising a third screen with a conical structure and a fourth frame fixedly connected to a large-diameter end of the third screen, wherein the third screen is coaxially arranged with the first screen, the fourth frame is in a circular ring structure, and the second connecting portion, the first connecting portion and the fourth frame are sequentially and fixedly connected.

8. The sizing cartridge of claim 1, further comprising a controller and a drive member electrically connected to the controller, the drive member being in driving connection with the first endless track, the controller being configured to control the drive member.

9. A rotary sizing hopper comprising a sizing drum according to any of claims 1 to 8.

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