CN215878682U - Screening device for straw crushed objects - Google Patents

Abstract

The utility model provides a sieving mechanism for straw smashing thing, include frame (2) that are used for as the support, set up the first order screening plant of frame (2) upper strata portion, set up the second grade screening plant of frame (2) lower strata portion, through frame (2), the integrated installation to first order screening plant and second grade screening plant has been realized, through first order screening plant and second grade screening plant, realized screening the straw smashing thing that is in the layering motion, consequently, the screening effect to the straw smashing thing has been improved.

Description

Screening device for straw crushed objects

Technical Field

The utility model relates to a screening device, in particular to a screening device for crushed straw.

Background

Corn stalk, the straw, the peanut skin, the bean stalk, the crops waste material stalk that can burn such as flowers and firewood smashes the back and obtains the straw smashing thing, can be used to make the fertilizer, fuel, the shaving board, the raw materials of various production industries such as paper, need separate the long and short straw smashing thing of straw smashing thing, when being the fodder, simultaneously will sieve out the sand and soil in the straw smashing thing, consequently, a sieving mechanism for straw smashing thing is an important agricultural device, in the current sieving mechanism that is used for straw smashing thing, mostly adopt the drum sieve, can only simply filter the straw smashing material, because only can carry out the one-level screening to the straw smashing thing, thereby the screening effect to the straw smashing thing has been influenced.

Disclosure of Invention

The utility model aims to provide a screening device for crushed straw.

In order to overcome the technical defects, the utility model aims to provide a screening device for straw crushed objects, so that the screening effect on the straw crushed objects is improved.

In order to achieve the purpose, the utility model adopts the technical scheme that: the screening device comprises a frame used as a support, a first-stage screening device arranged on the upper layer part of the frame and a second-stage screening device arranged on the lower layer part of the frame.

Owing to designed frame, first order screening plant and second grade screening plant, through the frame, realized the integrated installation to first order screening plant and second grade screening plant, through first order screening plant and second grade screening plant, realized screening the straw crushing thing that is in the layered motion, consequently improved the screening effect to the straw crushing thing.

The utility model designs that the frame, the primary screening device and the secondary screening device are connected with each other in a mode of screening straw crushed materials which move in a layered mode.

The utility model designs that the first-stage screening device and the second-stage screening device are connected with the rack in a mode of screening crushed straw along a Z-shaped route.

The utility model designs that the primary screening device comprises a rotary screen and a first power source.

The utility model designs that the secondary screening device comprises a vibrating screen, a first swinging rod, a second power source and a thrust rod.

The technical effects of the five technical schemes are as follows: the multi-stage screening of the straw crushed materials is realized, the straw crushed materials are separated according to the granularity, and the comprehensive utilization of the straw crushed materials is improved.

The utility model designs that the screening device further comprises a first accessory device, the first accessory device is arranged between the first-stage screening device and the frame, and the first accessory device is arranged as a connecting plate.

The utility model designs that the screening device also comprises a second accessory device, the second accessory device is arranged on the second-stage screening device, and the second accessory device is arranged into a first discharge hopper and a second discharge hopper.

The technical effects of the technical scheme are as follows: integrated mounting of other components is achieved.

The utility model designs that a rotary screen, a vibrating screen and a second power source are respectively arranged on a rack, a first power source and a connecting plate are respectively arranged between the rotary screen and the rack, a first swinging rod and a second swinging rod are respectively arranged between the vibrating screen and the rack, a thrust rod is arranged between the vibrating screen and the second power source, and a first discharge hopper and a second discharge hopper are arranged on the vibrating screen.

The technical effects of the technical scheme are as follows: the basic technical scheme of the utility model is formed by the rotary screen, the frame, the first power source, the connecting plate, the vibrating screen, the first swing rod, the second power source, the thrust rod, the first discharging hopper and the second discharging hopper, and the technical problem of the utility model is solved.

The utility model designs that the frame comprises a bottom frame part and a bracket part, the lower part of the upper end surface of the bottom frame part is connected with the bracket part, the bracket part is connected with the drum screen, the upper part of the side surface of the bottom frame part is connected with the connecting plate, the lower part of the side surface of the bottom frame part is connected with the first swinging rod through a pin shaft, the upper part of the side surface of the bottom frame part is connected with the second swinging rod through a pin shaft, the bottom frame part is a rectangular frame body, and the bracket part is a U-shaped frame body.

The technical effects of the technical scheme are as follows: the installation of the first-stage screening device and the second-stage screening device is realized, and the screening route of the crushed straw is ensured.

The utility model designs that the drum screen comprises a ring frame part, a drum screen part, a gear ring part, a gear part, a shaft part and a riding wheel part, wherein the port part at the upper end of the ring frame part is connected with the riding wheel part through a pin shaft, the lower end part of the outer side surface of the ring frame part is rotatably connected with the shaft part, the upper end of the drum screen part is connected with the riding wheel part, the lower end of the drum screen part is connected with the gear ring part and the gear part is connected with the gear ring part in an engagement way, one end of the shaft part is connected with the gear part and the other end of the shaft part is connected with a first power source, the lower end part of the outer side surface of the ring frame part is connected with a frame and the upper end part of the outer side surface of the ring frame part is connected with a connecting plate, the port parts at the lower end of the drum screen part are distributed corresponding to a belt conveyor, the ring frame part is arranged into a circular frame body and the drum screen part is arranged into a circular tubular body, the riding wheel part is provided as a disk-shaped body with a groove body and three riding wheel parts are provided between the drum screen part and the ring frame part.

The utility model provides that the first power source is arranged as a belt transmission device with a motor, the motor of the first power source is arranged to be connected with the frame, and the driven wheel of the first power source is arranged to be connected with the drum screen.

The technical effects of the two technical schemes are as follows: the arrangement of the drum screen in the screening of the crushed straw is realized, and the crushed straw with large granularity is separated.

The utility model designs that the vibrating screen comprises a screen plate part, a supporting plate part and a connecting rod part, wherein the upper part of the lower end face of the screen plate part is connected with the upper part of the lower end face of the supporting plate part, one end of the connecting rod part is connected with the lower end part of the side face of the screen plate part through a pin shaft, the other end of the connecting rod part is connected with the lower end part of the side face of the supporting plate part, the upper part of the side face of the screen plate part is connected with a first swing rod, the lower part of the side face of the screen plate part is connected with a second swing rod, the lower end of the supporting plate part is connected with a thrust rod, the lower end port of the supporting plate part is connected with a second discharge hopper, the lower end port of the screen plate part is connected with a first discharge hopper, the screen plate part is arranged into a U-shaped leakage plate, the supporting plate part is arranged into a U-shaped sheet body, and the connecting rod part is arranged into a strip body.

The utility model designs that the first swing rod and the second swing rod are respectively arranged into a strip-shaped body, the upper end head of the first swing rod and the upper end head of the second swing rod are respectively arranged to be connected with the rack through pin shafts, and the lower end head of the first swing rod and the lower end head of the second swing rod are respectively arranged to be connected with the vibrating screen.

The utility model designs that the second power source is arranged as a belt transmission device with a motor, the motor of the second power source is arranged to be connected with the frame, the driven wheel of the second power source is arranged to be rotatably connected with the frame, and the driven wheel of the second power source is arranged to be eccentrically connected with the thrust rod.

The utility model designs that the thrust rod is arranged into a strip-shaped body, one end head of the thrust rod is eccentrically connected with a driven wheel of a second power source through a pin shaft, and the other end head of the thrust rod is connected with the vibrating screen.

The technical effects of the four technical schemes are as follows: the arrangement of the sieve plate in the screening of the crushed straw is realized, and the crushed straw with small granularity is separated.

The utility model designs that the connecting plate is arranged into a rectangular sheet body, one end of the connecting plate is arranged to be connected with the drum screen, and the other end of the connecting plate is arranged to be connected with the rack.

The technical effects of the technical scheme are as follows: the fixed connection of the drum screen is realized.

The utility model designs that the first discharging hopper and the second discharging hopper are respectively arranged into a U-shaped groove body, the inner end head of the first discharging hopper and the inner end head of the second discharging hopper are respectively arranged to be connected with the vibrating screen, and the outer end head of the first discharging hopper and the outer end head of the second discharging hopper are respectively arranged to be distributed corresponding to the belt conveyor.

The technical effects of the technical scheme are as follows: the discharge of straw crushed materials and sand grains with small granularity is realized, and the cleanliness of the straw crushed materials is improved.

The utility model designs a rotary screen, a frame, a first power source, a vibrating screen, a first swinging rod, a second power source and a thrust rod which are distributed according to a hierarchical entry screening mode, wherein the rotary screen, the frame, the first power source, the vibrating screen, the first swinging rod, the second power source and the thrust rod are distributed according to an end connection mode with a connecting plate, the rotary screen, the frame, the first power source, the vibrating screen, the first swinging rod, the second power source and the thrust rod are distributed according to an end discharge mode with a first discharge hopper and a second discharge hopper, the vertical center line of the rotary screen, the vertical center line of the frame and the vertical center line of the vibrating screen are arranged on the same straight line, the two connecting plates are arranged between the rotary screen and the frame, the two first swinging rods and the two second swinging rods are respectively arranged between the vibrating screen and the frame, the bracket portion is configured to couple with the loop portion.

The utility model designs that the included angle between the transverse center line of the rotary screen and the transverse horizontal center line is set to be 8-15 degrees, the included angle between the transverse center line of the screen plate part and the transverse horizontal center line is set to be 5-9 degrees, the included angle between the transverse center line of the supporting plate part and the transverse horizontal center line is set to be 20-28 degrees, the ratio between the screen hole diameter of the drum screen part and the screen hole diameter of the screen plate part is set to be 3.5-4.6:1, and the distance between the center of a pin shaft between a thrust rod and a driven wheel of a second power source and the center of a driven wheel of the second power source is set to be 500 plus 620 mm.

The technical effects of the technical scheme are as follows: through setting up the parameter value, realized matcing each other between the operating condition of drum sieve and the operating condition of shale shaker, improved the screening efficiency to straw crushing thing.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Figure 1 is a schematic view of the present invention,

a rotary screen-1, a frame-2, a first power source-3, a connecting plate-4, a vibrating screen-5, a first swinging rod-6, a second swinging rod-7, a second power source-8, a thrust rod-9, a first discharge hopper-91, a second discharge hopper-92,

The device comprises a ring frame part-11, a drum screen part-12, a gear ring part-13, a gear part-14, a shaft part-15, a riding wheel part-16, a bottom frame part-21, a bracket part-22, a screen plate part-51, a supporting plate part-52 and a connecting rod part-53.

Detailed Description

Terms such as "having," "including," and "comprising," as used with respect to the present invention, are to be understood as not specifying the presence or addition of one or more other elements or combinations thereof, in accordance with the examination guidelines.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "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; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In addition, technical features involved in various embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other, and unless otherwise specified, devices and materials used in the following examples are commercially available, and if processing conditions are not explicitly specified, please refer to a purchased product specification or follow a conventional method in the art.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Fig. 1 is one of the first embodiments of the present invention, which is specifically described with reference to the accompanying drawings, and includes a drum screen 1, a frame 2, a first power source 3, a connecting plate 4, a vibrating screen 5, a first swing rod 6, a second swing rod 7, a second power source 8, a thrust rod 9, a first discharging hopper 91 and a second discharging hopper 92, wherein the drum screen 1, the vibrating screen 5 and the second power source 8 are respectively disposed on the frame 2, the first power source 3 and the connecting plate 4 are respectively disposed between the drum screen 1 and the frame 2, the first swing rod 6 and the second swing rod 7 are respectively disposed between the vibrating screen 5 and the frame 2, the thrust rod 9 is disposed between the vibrating screen 5 and the second power source 8, and the first discharging hopper 91 and the second discharging hopper 92 are disposed on the vibrating screen 5.

In this embodiment, the drum screen 1 is configured to include a ring frame portion 11, a screen portion 12, a gear ring portion 13, a gear portion 14, a shaft portion 15 and a supporting wheel portion 16 and an upper end port portion of the ring frame portion 11 is configured to be coupled with the supporting wheel portion 16 through a pin shaft, a lower end portion of an outer side surface of the ring frame portion 11 is configured to be rotatably coupled with the shaft portion 15 and an upper end of the screen portion 12 is configured to be coupled with the supporting wheel portion 16, a lower end portion of the screen portion 12 is configured to be coupled with the gear ring portion 13 and the gear portion 14 is configured to be meshingly coupled with the gear ring portion 13, one end of the shaft portion 15 is configured to be coupled with the gear portion 14 and the other end of the shaft portion 15 is configured to be coupled with the first power source 3, a lower end portion of an outer side surface of the ring frame portion 11 is configured to be coupled with the frame 2 and an upper end portion of the outer side surface of the ring frame portion 11 is configured to be coupled with the connecting plate 4, a lower end port portion of the screen portion 12 is configured to be distributed corresponding to the belt conveyor, the loop portion 11 is provided as a circular frame-shaped body and the trommel portion 12 is provided as a circular tubular body, the riding wheel portion 16 is provided as a disk-shaped body having a groove body and three riding wheel portions 16 are provided between the trommel portion 12 and the loop portion 11.

Through drum sieve 1, formed to frame 2, the support tie point of first power supply 3 and connecting plate 4, by circle frame portion 11, realized being connected with frame 2, realized being connected with connecting plate 4, by axial region 15, realized being connected with first power supply 3, by ring gear portion 13, gear portion 14, axial region 15 and riding wheel portion 16, realized driving bobbin sieve portion 12 and rotated the processing in circle frame portion 11, by bobbin sieve portion 12, realized carrying out first order screening to straw crushing thing, its technical purpose lies in: used as a component for rotary screening of straw crushed materials.

In the present embodiment, frame 2 is provided to include base portion 21 and bracket portion 22 and the upper end surface lower portion of base portion 21 is provided to be coupled with bracket portion 22, bracket portion 22 is provided to be coupled with drum screen 1 and the side surface upper portion of base portion 21 is provided to be coupled with connecting plate 4, the side surface lower portion of base portion 21 is provided to be coupled with first swing lever 6 by a pin shaft and the side surface upper portion of base portion 21 is provided to be coupled with second swing lever 7 by a pin shaft, base portion 21 is provided as a rectangular frame body and bracket portion 22 is provided as a U-shaped frame body.

Through frame 2, formed the support tie point to drum sieve 1, connecting plate 4, first swinging arms 6 and second swinging arms 7, by bracket portion 22, realized being connected with drum sieve 1, by undercarriage portion 21, realized being connected with connecting plate 4, realized being connected with first swinging arms 6, realized being connected with second swinging arms 7, its technical aim at: for serving as a support carrier for the trommel 1, the connecting plate 4, the first swing lever 6 and the second swing lever 7.

In the present embodiment, the first power source 3 is provided as a belt transmission with a motor and the motor of the first power source 3 is provided in connection with the frame 2, and the driven wheel of the first power source 3 is provided in connection with the trommel 1.

Through first power supply 3, formed the support tie point to trommel 1 and frame 2, by first power supply 3, realized being connected with trommel 1, realized being connected with frame 2, its technical aim at: used as a power part for driving the drum screen 1 to work.

In this embodiment, the connecting plate 4 is provided as a rectangular plate-like body and one end of the connecting plate 4 is provided to be coupled with the drum screen 1 and the other end of the connecting plate 4 is provided to be coupled with the frame 2.

Through connecting plate 4, formed the support tie point to trommel 1 and frame 2, by connecting plate 4, realized being connected with trommel 1, realized being connected with frame 2, its technical aim at: for use as a part of the connection between the trommel 1 and the frame 2.

In the present embodiment, the vibrating screen 5 is configured to include a screen plate portion 51, the tray part 52 and the connecting rod part 53 are arranged to be coupled with the upper part of the lower end face of the tray part 52, one end of the connecting rod part 53 is arranged to be coupled with the lower end part of the side face of the tray part 51 through a pin shaft and the other end of the connecting rod part 53 is arranged to be coupled with the lower end part of the side face of the tray part 52, the upper part of the side face of the tray part 51 is arranged to be coupled with the first swing rod 6 and the lower part of the side face of the tray part 51 is arranged to be coupled with the second swing rod 7, the lower end of the tray part 52 is arranged to be coupled with the thrust rod 9 and the lower end port of the tray part 52 is arranged to be coupled with the second discharging hopper 92, the lower end port of the tray part 51 is arranged to be coupled with the first discharging hopper 91 and the tray part 51 is arranged to be a U-shaped leakage plate, the tray part 52 is arranged to be a U-shaped sheet body and the connecting rod part 53 is arranged to be a strip body.

Through connecting plate 4, formed first swinging arms 6, second swinging arms 7, thrust rod 9, first row hopper 91 and second row hopper 92's support connection point, by sieve portion 51, realized being connected with first swinging arms 6, realized being connected with second swinging arms 7, realized being connected with first row hopper 91, by layer board portion 52, realized being connected with thrust rod 9, realized being connected with second row hopper 92, by connecting rod portion 53, realized carrying out the V font connection processing between sieve portion 51 and layer board portion 52, its technical aim at: used as a component for vibrating and screening the crushed straw.

In the present embodiment, the first swing lever 6 and the second swing lever 7 are respectively configured as a bar-shaped body, an upper end of the first swing lever 6 and an upper end of the second swing lever 7 are respectively configured to be coupled to the frame 2 through a pin, and a lower end of the first swing lever 6 and a lower end of the second swing lever 7 are respectively configured to be coupled to the vibrating screen 5.

Through first swinging arms 6 and second swinging arms 7, formed the support tie point to frame 2 and shale shaker 5, by first swinging arms 6 and second swinging arms 7, realized being connected with frame 2, realized being connected with shale shaker 5, its technical aim at: for serving as a part for connection between the vibrating screen 5 and the frame 2.

In the present embodiment, the second power source 8 is provided as a belt drive with a motor and the motor of the second power source 8 is provided in connection with the frame 2, the driven wheel of the second power source 8 is provided in rotational connection with the frame 2 and the driven wheel of the second power source 8 is provided in eccentric connection with the thrust rod 9.

Through second power supply 8, formed the support tie point to frame 2 and thrust rod 9, by second power supply 8, realized being connected with frame 2, realized being connected with thrust rod 9, its technical aim at: for acting as one of the power components for driving the vibrating screen 5 into operation.

In this embodiment the thrust rod 9 is arranged as a bar and one of the ends of the thrust rod 9 is arranged to be coupled eccentrically by means of a pin with the driven wheel of the second power source 8 and the other end of the thrust rod 9 is arranged to be coupled with the vibrating screen 5.

Through thrust rod 9, formed the support tie point to shale shaker 5 and second power supply 8, by thrust rod 9, realized being connected with shale shaker 5, realized being connected with second power supply 8, its technical aim at: and the second power component is used for driving the vibrating screen 5 to work.

In the present embodiment, the first discharge hopper 91 and the second discharge hopper 92 are respectively configured as a U-shaped groove body, the inner end of the first discharge hopper 91 and the inner end of the second discharge hopper 92 are respectively configured to be coupled with the vibrating screen 5, and the outer end of the first discharge hopper 91 and the outer end of the second discharge hopper 92 are respectively configured to be distributed corresponding to the belt conveyor.

Through first hopper 91 and second hopper 92, formed the support connection point to shale shaker 5, by first hopper 91 and second hopper 92, realized being connected with shale shaker 5, its technical aim at: for output as the discharge of the vibrating screen 5.

In the embodiment, the included angle between the transverse center line of the rotary screen 1 and the transverse horizontal center line is set to be 8-15 degrees, the included angle between the transverse center line of the screen plate part 51 and the transverse horizontal center line is set to be 5-9 degrees, the included angle between the transverse center line of the supporting plate part 52 and the transverse horizontal center line is set to be 20-28 degrees, the ratio between the screen hole diameter of the rotary screen part 12 and the screen hole diameter of the screen plate part 51 is set to be 3.5-4.6:1, and the distance between the center of the pin shaft between the thrust rod 9 and the driven wheel of the second power source 8 and the center of the driven wheel of the second power source 8 is set to be 500-620 mm.

The technical purpose is as follows: the screening treatment of the materials in the process of movement is realized.

In the embodiment, the rotary screen 1, the frame 2, the first power source 3, the vibrating screen 5, the first swing rod 6, the second swing rod 7, the second power source 8 and the thrust rod 9 are arranged to be distributed in a hierarchical entry screening manner, the rotary screen 1, the frame 2, the first power source 3, the vibrating screen 5, the first swing rod 6, the second swing rod 7, the second power source 8 and the thrust rod 9 are arranged to be distributed in an end head connection manner with the connecting plates 4, the rotary screen 1, the frame 2, the first power source 3, the vibrating screen 5, the first swing rod 6, the second swing rod 7, the second power source 8 and the thrust rod 9 are arranged to be distributed in an end head discharge manner with the first discharge hopper 91 and the second discharge hopper 92, the vertical center line of the rotary screen 1, the vertical center line of the frame 2 and the vertical center line of the vibrating screen 5 are arranged on the same straight line, the two connecting plates 4 are arranged between the rotary screen 1 and the frame 2, two first swing levers 6 and two second swing levers 7 are respectively provided between the vibrating screen 5 and the frame 2, and a bracket portion 22 is provided to be coupled with the loop frame portion 11.

In the second embodiment of the present invention, the angle between the horizontal center line of the trommel 1 and the horizontal center line is set to 8 °, the angle between the horizontal center line of the screen plate portion 51 and the horizontal center line is set to 5 °, the angle between the horizontal center line of the support plate portion 52 and the horizontal center line is set to 20 °, the ratio between the screen hole diameter of the trommel portion 12 and the screen hole diameter of the screen plate portion 51 is set to 3.5:1, and the distance between the center of the pin shaft between the thrust rod 9 and the driven wheel of the second power source 8 and the center of the driven wheel of the second power source 8 is set to 500 mm.

In the third embodiment of the present invention, the included angle between the horizontal center line of the drum screen 1 and the horizontal center line is set to 15 °, the included angle between the horizontal center line of the screen plate part 51 and the horizontal center line is set to 9 °, the included angle between the horizontal center line of the supporting plate part 52 and the horizontal center line is set to 28 °, the ratio between the screen hole diameter of the drum screen part 12 and the screen hole diameter of the screen plate part 51 is set to 4.6:1, and the distance between the center of the pin shaft between the thrust rod 9 and the driven wheel of the second power source 8 and the center of the driven wheel of the second power source 8 is set to 620 mm.

In the fourth embodiment of the present invention, the angle between the horizontal center line of the trommel 1 and the horizontal center line is set to 12 °, the angle between the horizontal center line of the screen plate portion 51 and the horizontal center line is set to 7 °, the angle between the horizontal center line of the support plate portion 52 and the horizontal center line is set to 24 °, the ratio between the screen hole diameter of the trommel portion 12 and the screen hole diameter of the screen plate portion 51 is set to 4.0:1, and the distance between the center of the pin shaft between the thrust rod 9 and the driven wheel of the second power source 8 and the center of the driven wheel of the second power source 8 is set to 560 mm.

When the straw crushed materials are screened, the motor of the first power source 3 and the motor of the second power source 8 are in a working state, the driven wheel of the first power source 3 drives the gear part 14 to rotate through the shaft part 15, the gear part 14 is in meshing transmission with the gear ring part 13 to drive the drum screen part 12 to rotate on the riding wheel part 16, the driven wheel of the second power source 8 drives the thrust rod 9 to perform eccentric motion, the thrust rod 9 generates transverse pushing acting force on the supporting plate part 52, the first swinging rod 6 and the second swinging rod 7 perform swinging motion on the bottom frame part 21, the screen plate part 51 and the supporting plate part 52 perform transverse reciprocating motion, the straw crushed materials are put on the upper end port part of the drum screen part 12, the straw crushed materials move towards the lower end port part of the drum screen part 12 and are screened through the drum screen part 12, the straw crushed materials with large granularity are discharged to the belt conveyor through the lower end port part of the screen drum screen part 12, the straw that passes through a sieve mesh of sieve portion 12 to the small straw smashing thing of granularity and sand grain fall sieve portion 51 on, the straw that the granularity is small is smashed thing and sand grain and is moved to the lower extreme port portion of sieve portion 51, sieve through sieve portion 51, the straw smashing thing that the granularity is small is discharged belt conveyor through the lower extreme port portion and the first row of hopper 91 of sieve portion 51, sieve mesh that pass through a sieve portion 12 to the sand grain falls on holding in the palm board portion 52, the sand grain moves to the lower extreme port portion of layer board portion 52, the sand grain is discharged belt conveyor through the lower extreme port portion and the second row of hopper 92 of holding in the palm board portion 52, when accomplishing the sieve branch to the straw smashing thing, make the motor of first power supply 3 and the motor of second power supply 8 be in non-operation state.

A rotary screen 1, a frame 2, a first power source 3, a connecting plate 4, a vibrating screen 5, a first swinging rod 6, a second swinging rod 7, a second power source 8, a thrust rod 9, a first discharge hopper 91, a second discharge hopper 92,

The ring frame part 11, the screen part 12, the ring gear part 13, the gear part 14, the shaft part 15, the carrier part 16,

A chassis part 21 and a bracket part 22,

A screen part 51, a pallet part 52, and a connecting rod part 53,

In a second embodiment of the present invention, the frame 2, the primary screening device and the secondary screening device are coupled to each other in such a manner as to screen the straw pulverization in the layered movement.

In this embodiment, the first and second screening devices are coupled to the frame 2 in such a manner that the crushed straw is screened along a zigzag path.

In this embodiment, the primary screening device is configured to include a trommel 1 and a first power source 3.

In this embodiment, the secondary screening device is configured to include a vibrating screen 5, a first swing lever 6, a second swing lever 7, a second power source 8, and a thrust lever 9.

In this embodiment, a first attachment means is also included and is arranged between the first stage screening device and the frame 2, the first attachment means being arranged as a connection plate 4.

In this embodiment, a second attachment device is included and is provided on the second stage screening device, with the second attachment device being provided as a first hopper 91 and a second hopper 92.

The utility model has the following characteristics:

1. owing to designed frame 2, first order screening plant and second grade screening plant, through frame 2, realized screening the straw crushing thing that is in the layered motion through first order screening plant and second grade screening plant to the integrated installation of first order screening plant and second grade screening plant, consequently improved the screening effect to the straw crushing thing.

2. Owing to designed rotary screen 1 and first power supply 3, realized the screening to the straw crushing thing that the granularity is big.

3. Due to the design of the vibrating screen 5, the first oscillating rod 6, the second oscillating rod 7, the second power source 8 and the thrust rod 9, the straw crushed materials with small granularity are screened.

4. Due to the design of the connecting plate 4, the reinforced connection of the drum screen 1 and the frame 2 is realized.

5. Due to the design of the first discharge hopper 91 and the second discharge hopper 92, the separate discharge of the straw crushed materials and sand particles with small granularity is realized.

6. Because the structural shape is limited by the numerical range, the numerical range is the technical characteristic of the technical scheme of the utility model, and is not the technical characteristic obtained by formula calculation or limited tests, and tests show that the technical characteristic of the numerical range achieves good technical effect.

7. Due to the design of the technical characteristics of the utility model, tests show that each performance index of the utility model is at least 1.7 times of the existing performance index under the action of the single and mutual combination of the technical characteristics, and the utility model has good market value through evaluation.

Therefore, in the technical field of the screening device for the straw crushed materials, all technical contents including the frame 2 used as a support, the first-stage screening device arranged at the upper layer part of the frame 2 and the second-stage screening device arranged at the lower layer part of the frame 2 are within the protection scope of the utility model.

Claims (8)

1. A sieving mechanism for straw smashing thing, characterized by: comprises a frame (2) used as a support, a first-stage screening device arranged at the upper layer part of the frame (2), and a second-stage screening device arranged at the lower layer part of the frame (2),

the first-stage screening device comprises a drum screen (1) and a first power source (3),

the second-stage screening device comprises a vibrating screen (5), a first swinging rod (6), a second swinging rod (7), a second power source (8) and a thrust rod (9),

also comprises a first accessory device which is arranged between the first-stage screening device and the frame (2), the first accessory device is arranged as a connecting plate (4),

a second attachment device is included and is disposed on the second stage screening device, the second attachment device is configured as a first discharge hopper (91) and a second discharge hopper (92),

be provided with drum sieve (1) respectively on frame (2), shale shaker (5) and second power supply (8), be provided with first power supply (3) and connecting plate (4) respectively and be provided with first swinging arms (6) and second swinging arms (7) respectively between shale shaker (5) and frame (2) between drum sieve (1) and frame (2), be provided with thrust lever (9) and be provided with first row of hopper (91) and second row of hopper (92) on shale shaker (5) between shale shaker (5) and second power supply (8).

2. The screening device for straw pulverized materials as claimed in claim 1, wherein: the frame (2), the primary screening device and the secondary screening device are connected with each other in a mode of screening straw crushed materials in layered motion.

3. The screening device for straw pulverized materials as claimed in claim 2, wherein: the first-stage screening device and the second-stage screening device are connected with the frame (2) in a mode of screening crushed straws along a Z-shaped route.

4. The screening device for straw pulverized materials as claimed in claim 1, wherein: the frame (2) is provided with a bottom frame part (21) and a bracket part (22), the lower part of the upper end face of the bottom frame part (21) is connected with the bracket part (22), the bracket part (22) is connected with the drum screen (1), the upper part of the side face of the bottom frame part (21) is connected with the connecting plate (4), the lower part of the side face of the bottom frame part (21) is connected with the first swinging rod (6) through a pin shaft, the upper part of the side face of the bottom frame part (21) is connected with the second swinging rod (7) through a pin shaft, the bottom frame part (21) is a rectangular frame body, and the bracket part (22) is a U-shaped frame body.

5. The screening device for straw pulverized materials as claimed in claim 1, wherein: the drum screen (1) is arranged to comprise a ring frame part (11), a drum screen part (12), a gear ring part (13), a gear part (14), a shaft part (15) and a riding wheel part (16), an upper end port part of the ring frame part (11) is connected with the riding wheel part (16) through a pin shaft, the lower end part of the outer side surface of the ring frame part (11) is rotatably connected with the shaft part (15) and the upper end of the drum screen part (12) is connected with the riding wheel part (16), the lower end part of the drum screen part (12) is connected with the gear ring part (13) and the gear part (14) is connected with the gear ring part (13), one end of the shaft part (15) is connected with the gear part (14) and the other end of the shaft part (15) is connected with a first power source (3), the lower end part of the outer side surface of the ring frame part (11) is connected with a rack (2) and the upper end part of the outer side surface of the ring part (11) is connected with a connecting plate (4) in a meshing manner, the lower end port part of the drum screen part (12) is arranged to be distributed corresponding to the belt conveyor, the ring frame part (11) is arranged to be a circular frame body and the drum screen part (12) is arranged to be a circular tube body, the supporting wheel part (16) is arranged to be a disk body with a groove body and three supporting wheel parts (16) are arranged between the drum screen part (12) and the ring frame part (11),

or the first power source (3) is arranged to be a belt transmission device with a motor, the motor of the first power source (3) is arranged to be connected with the frame (2), the driven wheel of the first power source (3) is arranged to be connected with the drum screen (1),

or, the vibrating screen (5) is arranged to include a screen plate part (51), the supporting plate part (52) and the connecting rod part (53) are arranged, the upper part of the lower end face of the screen plate part (51) is connected with the upper part of the lower end face of the supporting plate part (52), one end of the connecting rod part (53) is arranged to be connected with the lower end part of the side face of the screen plate part (51) through a pin shaft, the other end of the connecting rod part (53) is arranged to be connected with the lower end part of the side face of the supporting plate part (52), the upper part of the side face of the screen plate part (51) is arranged to be connected with the first swing rod (6) and the lower part of the side face of the screen plate part (51) is arranged to be connected with the second swing rod (7), the lower end of the supporting plate part (52) is arranged to be connected with the thrust rod (9) and the lower end port part of the supporting plate part (52) is arranged to be connected with the second discharging hopper (92), the lower end port part of the screen plate part (51) is arranged to be connected with the first discharging hopper (91) and the screen plate part is arranged to be a U-shaped leakage plate, the support plate part (52) is arranged as a U-shaped sheet-shaped body and the connecting rod part (53) is arranged as a strip-shaped body,

or the first swinging rod (6) and the second swinging rod (7) are respectively arranged into a strip-shaped body, the upper end of the first swinging rod (6) and the upper end of the second swinging rod (7) are respectively arranged to be connected with the rack (2) through pin shafts, the lower end of the first swinging rod (6) and the lower end of the second swinging rod (7) are respectively arranged to be connected with the vibrating screen (5),

or the second power source (8) is arranged to be a belt transmission device with a motor, the motor of the second power source (8) is arranged to be connected with the frame (2), the driven wheel of the second power source (8) is arranged to be rotatably connected with the frame (2) and the driven wheel of the second power source (8) is arranged to be eccentrically connected with the thrust rod (9),

or the thrust rod (9) is arranged to be a strip-shaped body, one end head of the thrust rod (9) is arranged to be eccentrically connected with a driven wheel of the second power source (8) through a pin shaft, and the other end head of the thrust rod (9) is arranged to be connected with the vibrating screen (5).

6. The screening device for straw pulverized materials as claimed in claim 1, wherein: the connecting plate (4) is arranged to be a rectangular sheet body, one end of the connecting plate (4) is arranged to be connected with the drum screen (1), the other end of the connecting plate (4) is arranged to be connected with the frame (2),

or the first discharging hopper (91) and the second discharging hopper (92) are respectively arranged to be U-shaped groove-shaped bodies, the inner end of the first discharging hopper (91) and the inner end of the second discharging hopper (92) are respectively arranged to be connected with the vibrating screen (5), and the outer end of the first discharging hopper (91) and the outer end of the second discharging hopper (92) are respectively arranged to be distributed corresponding to the belt conveyor.

7. The screening device for straw pulverizates as claimed in any one of claims 1 to 6, characterized in that: the rotary screen (1), the frame (2), the first power source (3), the vibrating screen (5), the first oscillating rod (6), the second oscillating rod (7), the second power source (8) and the thrust rod (9) are distributed in a layered entry screening mode, the rotary screen (1), the frame (2), the first power source (3), the vibrating screen (5), the first oscillating rod (6), the second oscillating rod (7), the second power source (8) and the thrust rod (9) are distributed in a mode of end connection with the connecting plate (4), the rotary screen (1), the frame (2), the first power source (3), the vibrating screen (5), the first oscillating rod (6), the second oscillating rod (7), the second power source (8) and the thrust rod (9) are distributed in a mode of end discharge with the first discharge hopper (91) and the second discharge hopper (92), the vertical center line of the drum screen (1), the vertical center line of the rack (2) and the vertical center line of the vibrating screen (5) are arranged on the same straight line, the two connecting plates (4) are arranged between the drum screen (1) and the rack (2), the two first oscillating rods (6) and the two second oscillating rods (7) are respectively arranged between the vibrating screen (5) and the rack (2), and the bracket part (22) is connected with the ring frame part (11).

8. The screening device for straw pulverized materials as claimed in claim 7, wherein: the included angle between the transverse center line of the rotary screen (1) and the transverse horizontal center line is set to be 8-15 degrees, the included angle between the transverse center line of the screen plate part (51) and the transverse horizontal center line is set to be 5-9 degrees, the included angle between the transverse center line of the supporting plate part (52) and the transverse horizontal center line is set to be 20-28 degrees, the ratio between the screen hole diameter of the drum screen part (12) and the screen hole diameter of the screen plate part (51) is set to be 3.5-4.6:1, and the distance between the center of a pin shaft between the thrust rod (9) and a driven wheel of the second power source (8) and the circle center of the driven wheel of the second power source (8) is set to be 500-620 mm.

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