CN111482359A - Concrete raw material screening device with stirring function - Google Patents

Concrete raw material screening device with stirring function Download PDF

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Publication number
CN111482359A
CN111482359A CN202010277278.9A CN202010277278A CN111482359A CN 111482359 A CN111482359 A CN 111482359A CN 202010277278 A CN202010277278 A CN 202010277278A CN 111482359 A CN111482359 A CN 111482359A
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CN
China
Prior art keywords
stirring
reciprocating
screen
linear motion
transmission assembly
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Withdrawn
Application number
CN202010277278.9A
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Chinese (zh)
Inventor
马敬
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Individual
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Individual
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Priority to CN202010277278.9A priority Critical patent/CN111482359A/en
Publication of CN111482359A publication Critical patent/CN111482359A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/28Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
    • B07B1/34Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens jigging or moving to-and-fro perpendicularly or approximately perpendiculary to the plane of the screen
    • B07B1/343Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens jigging or moving to-and-fro perpendicularly or approximately perpendiculary to the plane of the screen with mechanical drive elements other than electromagnets
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/42Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46Constructional details of screens in general; Cleaning or heating of screens
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28CPREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C5/00Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
    • B28C5/08Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
    • B28C5/10Mixing in containers not actuated to effect the mixing
    • B28C5/12Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers
    • B28C5/16Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers the stirrers having motion about a vertical or steeply inclined axis

Abstract

The invention is suitable for the technical field of concrete production, and provides a concrete raw material screening device with a stirring function, which comprises: a screening chamber; a screen is movably arranged in the screening chamber; a movable member; two groups of moving parts are arranged; the two groups of moving parts are movably arranged in the screening chamber; the moving piece is provided with a stirring component; a first transmission assembly; the first reciprocating mechanism is used for driving the two groups of moving parts to perform reciprocating linear motion in opposite directions; the second reciprocating mechanism is used for driving the screen to do reciprocating linear motion; and a second transmission assembly. According to the invention, the first reciprocating mechanism and the first transmission assembly are arranged, so that two groups of stirring assemblies can be synchronously driven to perform reciprocating linear motion and stirring operation, the stirring range and effect of the stirring assemblies can be improved, and the screening efficiency of the screen for materials can be improved.

Description

Concrete raw material screening device with stirring function
Technical Field
The invention belongs to the technical field of concrete production, and particularly relates to a concrete raw material screening device with a stirring function.
Background
The concrete is artificial stone which is formed by taking cement as a main cementing material, water, sand, stones, chemical additives, mineral admixtures and other auxiliary raw materials and then stirring, compacting, forming, curing and hardening.
In the production process of concrete, raw materials such as sand and stones are generally required to be screened by a screening device so as to ensure the quality of concrete products. However, the conventional screening device for concrete raw materials mainly comprises a manual screen and a vibrating screen, and does not have a stirring function, so that the screening efficiency is low, and the like.
Therefore, a concrete raw material screening apparatus having a stirring function and capable of efficiently screening is urgently researched.
Disclosure of Invention
The embodiment of the invention aims to provide a concrete raw material screening device with a stirring function, and aims to solve the problems in the background art.
The embodiment of the invention is realized in such a way that a concrete raw material screening device with a stirring function comprises:
the screening chamber is internally movably provided with a screen;
a movable member; two groups of moving parts are arranged; the two groups of moving parts are movably arranged in the screening chamber; a stirring component for stirring materials is arranged on the movable piece;
a first transmission assembly; when the moving piece performs reciprocating linear motion, the first transmission assembly drives the stirring assembly to perform stirring operation;
the first reciprocating mechanism is used for driving the two groups of moving parts to perform reciprocating linear motion in opposite directions;
the second reciprocating mechanism is used for driving the screen to do reciprocating linear motion;
a second transmission assembly; when the second reciprocating mechanism drives the screen to do reciprocating linear motion, the first reciprocating mechanism synchronously drives the two moving parts to do reciprocating linear motion in opposite directions through the second transmission component.
As a preferable aspect of the embodiment of the present invention, the stirring assembly includes:
a stirring shaft; the stirring shaft is rotatably arranged on the movable piece; the stirring shaft is connected with the first transmission assembly; when the moving piece performs reciprocating linear motion, the first transmission assembly drives the stirring shaft to perform reciprocating clockwise and anticlockwise rotation;
stirring blades; at least one group of stirring blades is arranged; the stirring blade is arranged on the stirring shaft.
As another preferable aspect of the embodiment of the present invention, the first transmission assembly includes:
a movable gear; the movable gear is fixedly arranged on the stirring shaft;
fixing a rack; the fixed rack is fixedly arranged in the screening chamber, and the movable gear is meshed with the fixed rack.
As another preferable aspect of the embodiment of the present invention, the first reciprocating mechanism includes:
the first guide piece is used for enabling the movable piece to linearly move along the first guide piece;
a screw; the screw is rotationally arranged on one side of the first guide piece; the screw rod is provided with a first thread part and a second thread part, and the thread direction of the first thread part is opposite to that of the second thread part; the two groups of moving pieces are in threaded connection with the first threaded part and the second threaded part respectively;
and the intermittent reciprocating assembly is used for intermittently driving the screw to rotate clockwise and anticlockwise in a reciprocating manner.
As another preferable aspect of the embodiment of the present invention, the intermittent reciprocating assembly includes:
a first driven gear; the first driven gear is arranged on the screw rod;
a second driven gear; the second driven gear is rotatably arranged on the outer wall of the screening chamber through a first rotating shaft; the first driven gear is meshed with the second driven gear;
a torsion spring; two ends of the torsion spring are respectively connected with the first rotating shaft and the outer wall of the screening chamber;
an incomplete gear; the incomplete gear is intermittently meshed with the second driven gear; the incomplete gear is also connected with the second transmission assembly; when the second reciprocating mechanism drives the screen to do reciprocating linear motion, the second transmission assembly synchronously drives the incomplete gear to rotate.
As another preferable aspect of the embodiment of the present invention, the second transmission assembly includes:
a driven wheel; the driven wheel is connected with the incomplete gear;
a driving wheel; the driving wheel is connected with the second rotating shaft; the second rotating shaft is rotatably arranged on the outer wall of the screening chamber and is connected with the second reciprocating mechanism;
the transmission part is used for enabling the driven wheel and the driving wheel to synchronously rotate; the driven wheel is in transmission connection with the driving wheel through the transmission part;
the driving piece is used for driving the second rotating shaft to rotate; the driving piece is connected with the second rotating shaft.
As another preferable aspect of the embodiment of the present invention, the second reciprocating mechanism includes:
a second slider; the second sliding block is in sliding fit with the inner wall of the screening chamber; the screen is arranged on the second sliding block;
a second guide for linear movement of the screen along the second guide;
a connecting rod; the connecting rod is connected with the second sliding block;
a turntable; the rotary table is connected with the second rotating shaft;
a movable rod; one end of the movable rod is rotatably connected with the connecting rod, and the other end of the movable rod is rotatably arranged at the eccentric position of the turntable.
As another preferable aspect of the embodiment of the present invention, the second reciprocating mechanism includes:
a second slider; the second sliding block is in sliding fit with the inner wall of the screening chamber; the screen is arranged on the second sliding block;
a second guide for linear movement of the screen along the second guide;
a connecting rod; the connecting rod is connected with the second sliding block;
the cam is used for intermittently driving the connecting rod to perform linear motion; the cam is connected with the second rotating shaft and is positioned on one side, far away from the second sliding block, of the connecting rod;
a spring; and two ends of the spring are respectively connected with the second sliding block and the inner wall of the screening chamber.
According to the concrete raw material screening device with the stirring function, the first reciprocating mechanism and the first transmission assembly are arranged, so that the two groups of stirring assemblies can be synchronously driven to perform reciprocating linear motion and stirring operation, the stirring range and effect of the stirring assemblies can be improved, and the screening efficiency of the screen for materials can be improved. In addition, the second reciprocating mechanism and the second transmission assembly are arranged, so that the screen can be driven to do reciprocating linear motion while the stirring assembly is used for stirring, and the screening efficiency of the screen on materials is further improved.
Drawings
Fig. 1 is a schematic structural diagram of a concrete raw material screening device with a stirring function according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of an intermittent reciprocating assembly provided by an embodiment of the invention.
Fig. 3 is a schematic structural diagram of another concrete raw material screening device with a stirring function according to an embodiment of the present invention.
In the figure: 1-screening chamber, 2-feeding port, 3-discharging port, 4-fixed block, 5-first slide block, 6-first guide rod, 7-screw rod, 8-first screw thread part, 9-second screw thread part, 10-stirring shaft, 11-stirring blade, 12-movable gear, 13-fixed rack, 14-screen, 15-second slide block, 16-second guide rod, 17-wedge block, 18-first driven gear, 19-second driven gear, 20-first rotating shaft, 21-torsion spring, 22-incomplete gear, 23-driven wheel, 24-driving wheel, 25-transmission part, 26-motor, 27-second rotating shaft, 28-connecting rod, 29-rotating disc, 30-movable rod, 30-fixed rod, 5-first slide block, 6-first guide rod, 7-screw rod, 8-first screw thread part, 9-second screw thread part, 10-stirring shaft, 11, 31-cam, 32-spring.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In addition, in the description of the present application, terms used should be construed broadly, and specific meanings of the terms may be understood by those skilled in the art according to actual situations. For example, the term "mounted" as used in this application may be defined as a fixed mounting that is removable or a fixed mounting that is not removable, etc.; the terms "set" and "provided" as used herein may be defined as either a contact or a non-contact arrangement, etc.; the terms "connected" and "coupled" as used herein may be defined as a fixed mechanical connection such as welded, riveted, bolted, interference fit, or as a movable mechanical connection such as hinged, connected through bearings, etc.; all the terms of orientation used are used with reference to the drawings or are based on the direction defined by the actual situation and the common general knowledge.
As shown in fig. 1, an embodiment of the present invention provides a concrete raw material screening apparatus with a stirring function, which includes:
the device comprises a screening chamber 1, wherein a screen 14 is movably arranged in the screening chamber 1;
a movable member; two groups of moving parts are arranged; the two groups of moving parts are movably arranged in the screening chamber 1; a stirring component for stirring materials is arranged on the movable piece;
a first transmission assembly; when the moving piece performs reciprocating linear motion, the first transmission assembly drives the stirring assembly to perform stirring operation;
the first reciprocating mechanism is used for driving the two groups of moving parts to perform reciprocating linear motion in opposite directions;
the second reciprocating mechanism is used for driving the screen 14 to do reciprocating linear motion;
a second transmission assembly; when the second reciprocating mechanism drives the screen 14 to perform reciprocating linear motion, the first reciprocating mechanism synchronously drives the two sets of moving parts to perform reciprocating linear motion in opposite directions through the second transmission assembly.
In practical application, the screening chamber 1 can adopt a box body structure; the moving part is a first sliding block 5; the top of the screening chamber 1 is provided with a feed inlet 2, and the bottom thereof is provided with a discharge outlet 3. According to the embodiment of the invention, the first reciprocating mechanism and the first transmission assembly are arranged, so that the two groups of stirring assemblies can be synchronously driven to perform reciprocating linear motion and stirring operation, the stirring range and effect of the stirring assemblies can be improved, and the screening efficiency of the screen 14 on materials can be improved. In addition, the second reciprocating mechanism and the second transmission assembly are arranged, so that the screen 14 can be driven to perform reciprocating linear motion while the stirring assembly performs stirring operation, and the screening efficiency of the screen 14 on the materials is further improved.
As shown in fig. 1, as a preferred embodiment of the present invention, the stirring assembly includes:
a stirring shaft 10; the stirring shaft 10 is rotatably arranged on the movable piece; the stirring shaft 10 is connected with the first transmission assembly; when the moving piece performs reciprocating linear motion, the first transmission assembly drives the stirring shaft 10 to perform reciprocating clockwise and anticlockwise rotation;
a stirring blade 11; at least one group of stirring blades 11 is arranged; the stirring blade 11 is arranged on the stirring shaft 10.
Specifically, two groups of stirring shafts 10 are arranged corresponding to the first sliding blocks 5, and the stirring blades 11 on the two groups of stirring shafts 10 are distributed in a staggered manner.
As shown in fig. 1, as another preferable solution of the embodiment of the present invention, the first transmission assembly includes:
a movable gear 12; the movable gear 12 is fixedly arranged on the stirring shaft 10;
fixing a rack 13; the fixed rack 13 is fixedly arranged in the screening chamber 1, and the movable gear 12 is meshed with the fixed rack 13.
Specifically, two groups of movable gears 12 are also arranged, and the two groups of movable gears 12 are respectively fixedly sleeved on the two groups of stirring shafts 10; when the stirring shaft 10 makes a reciprocating linear motion along with the first sliding block 5, the movable gear 12 on the stirring shaft 10 can make a reciprocating rolling on the fixed gear 13, so that the stirring shaft 10 can be driven to make reciprocating clockwise and counterclockwise rotations to realize a stirring operation.
As another preferable mode of the embodiment of the present invention, as shown in fig. 1, the first reciprocating mechanism includes:
the first guide piece is used for enabling the movable piece to linearly move along the first guide piece;
a screw 7; the screw 7 is rotatably arranged on one side of the first guide part; a first thread part 8 and a second thread part 9 are arranged on the screw 7, and the thread direction of the first thread part 8 is opposite to that of the second thread part 9; the two groups of moving pieces are respectively in threaded connection with the first threaded part 8 and the second threaded part 9;
and the intermittent reciprocating assembly is used for intermittently driving the screw 7 to rotate clockwise and anticlockwise in a reciprocating manner.
Specifically, the first guide member is a first guide rod 6; the two groups of first sliding blocks 5 are sleeved on the first guide rods 6 and are in sliding fit with the first guide rods 6; the first guide rod 6 is fixedly arranged between the two groups of fixed blocks 4, and the fixed blocks 4 are fixedly arranged in the screening chamber 1; the screw 7 is rotationally connected with the two groups of fixed blocks 4.
As another preferable mode of the embodiment of the present invention, as shown in fig. 1 and 2, the intermittent reciprocating assembly includes:
a first driven gear 18; the first driven gear 18 is arranged on the screw 7;
a second driven gear 19; the second driven gear 19 is rotatably arranged on the outer wall of the screening chamber 1 through a first rotating shaft 20; the first driven gear 18 is meshed with the second driven gear 19;
a torsion spring 21; two ends of the torsion spring 21 are respectively connected with the first rotating shaft 20 and the outer wall of the screening chamber 1;
the incomplete gear 22; the incomplete gear 22 is intermittently meshed with the second driven gear 19; the incomplete gear 22 is also connected with the second transmission assembly; when the second reciprocating mechanism drives the screen 14 to perform reciprocating linear motion, the second transmission assembly synchronously drives the incomplete gear 22 to rotate.
Specifically, the second driven gear 19 can be intermittently driven to rotate by the rotation of the incomplete gear 22, so that the second driven gear 19 can rotate clockwise and anticlockwise in a reciprocating manner under the action of the rebound force of the torsion spring 21; the reciprocating rotation of the second driven gear 19 can drive the first driven gear 18 and the screw 7 to rotate in a reciprocating manner; the reciprocating rotation of the screw 7 can drive the two sets of first sliding blocks 5 to respectively carry out reciprocating linear motion along the first guide rods 6 in opposite directions.
As another preferred aspect of the embodiment of the present invention, as shown in fig. 1, the second transmission assembly includes:
a driven pulley 23; the driven wheel 23 is connected with the incomplete gear 22;
a drive wheel 24; the driving wheel 24 is connected with the second rotating shaft 27; the second rotating shaft 27 is rotatably arranged on the outer wall of the screening chamber 1 and is connected with the second reciprocating mechanism;
a transmission member 25 for synchronously rotating the driven wheel 23 and the driving wheel 24; the driven wheel 23 is in transmission connection with the driving wheel 24 through the transmission piece 25;
a driving member for driving the second rotating shaft 27 to rotate; the driving member is connected to the second rotating shaft 27.
Specifically, the driving member may adopt a motor 26, and a motor shaft of the motor 26 is fixedly connected with the second rotating shaft 27; the transmission member 25 may be a belt or a chain, and the driven pulley 23 and the driving pulley 24 may be pulleys or sprockets.
As shown in fig. 1, as another preferable aspect of the embodiment of the present invention, the second reciprocating mechanism includes:
a second slider 15; the second sliding block 15 is in sliding fit with the inner wall of the screening chamber 1; the screen 14 is arranged on the second slide block 15;
a second guide along which the screen cloth 14 is linearly moved;
a connecting rod 28; the connecting rod 28 is connected with the second slider 15;
a turntable 29; the rotary disc 29 is connected with the second rotating shaft 27;
a movable lever 30; one end of the movable rod 30 is rotatably connected to the connecting rod 28, and the other end of the movable rod 30 is rotatably disposed at an eccentric position of the turntable 29.
Specifically, the second slide block 15 may adopt an annular structure or a frame structure according to the shape of the screening chamber 1; the second guide part is a second guide rod 16, the second guide rod 16 is fixedly arranged on a wedge block 17, and the wedge block 17 is fixed on the inner wall of the screening chamber 1; the connecting rod 28 is in sliding engagement with the wedge 17. The rotation of the second rotating shaft 27 can drive the rotating disc 29 to rotate, the rotation of the rotating disc 29 can drive the movable rod 30 to swing, and the swing of the movable rod 30 can drive the connecting rod 28 and the second sliding block 15 to reciprocate up and down, so that the screen 14 can be driven to reciprocate linearly, and the screening efficiency is improved.
As shown in fig. 3, as another preferred solution of the embodiment of the present invention, the second reciprocating mechanism may adopt another structure, which specifically includes:
a second slider 15; the second sliding block 15 is in sliding fit with the inner wall of the screening chamber 1; the screen 14 is arranged on the second slide block 15;
a second guide along which the screen cloth 14 is linearly moved;
a connecting rod 28; the connecting rod 28 is connected with the second slider 15;
the cam 31 is used for intermittently driving the connecting rod 28 to perform linear motion; the cam 31 is connected with the second rotating shaft 27 and is positioned on one side of the connecting rod 28 away from the second sliding block 15;
a spring 32; both ends of the spring 32 are connected to the second slider 15 and the inner wall of the screening chamber 1, respectively.
Specifically, the second slide block 15 may adopt an annular structure or a frame structure according to the shape of the screening chamber 1; the second guide part is a second guide rod 16, the second guide rod 16 is fixedly arranged on a wedge block 17, and the wedge block 17 is fixed on the inner wall of the screening chamber 1; the connecting rod 28 is in sliding engagement with the wedge 17. The cam 31 can be driven to rotate by the rotation of the second rotating shaft 27, the connecting rod 28 and the second sliding block 15 can be driven to move downwards intermittently by the rotation of the cam 31, the second sliding block 15 can realize reciprocating up-and-down movement under the action of the rebound force of the spring 32, and therefore the screen 14 can be driven to perform reciprocating linear movement, and the screening efficiency can be improved.
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 present 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 (8)

1. The utility model provides a concrete raw materials sieving mechanism with stirring function, includes the screening chamber, the activity is provided with the screen cloth in the screening chamber, its characterized in that, concrete raw materials sieving mechanism still includes:
a movable member; two groups of moving parts are arranged; the two groups of moving parts are movably arranged in the screening chamber; a stirring component for stirring materials is arranged on the movable piece;
a first transmission assembly; when the moving piece performs reciprocating linear motion, the first transmission assembly drives the stirring assembly to perform stirring operation;
the first reciprocating mechanism is used for driving the two groups of moving parts to perform reciprocating linear motion in opposite directions;
the second reciprocating mechanism is used for driving the screen to do reciprocating linear motion;
a second transmission assembly; when the second reciprocating mechanism drives the screen to do reciprocating linear motion, the first reciprocating mechanism synchronously drives the two moving parts to do reciprocating linear motion in opposite directions through the second transmission component.
2. The concrete raw material screening device with stirring function of claim 1, wherein the stirring assembly comprises:
a stirring shaft; the stirring shaft is rotatably arranged on the movable piece; the stirring shaft is connected with the first transmission assembly; when the moving piece performs reciprocating linear motion, the first transmission assembly drives the stirring shaft to perform reciprocating clockwise and anticlockwise rotation;
stirring blades; at least one group of stirring blades is arranged; the stirring blade is arranged on the stirring shaft.
3. The concrete raw material screening device with stirring function of claim 2, wherein the first transmission assembly comprises:
a movable gear; the movable gear is fixedly arranged on the stirring shaft;
fixing a rack; the fixed rack is fixedly arranged in the screening chamber, and the movable gear is meshed with the fixed rack.
4. The concrete raw material screening device with stirring function according to claim 1, wherein said first reciprocating mechanism comprises:
the first guide piece is used for enabling the movable piece to linearly move along the first guide piece;
a screw; the screw is rotationally arranged on one side of the first guide piece; the screw rod is provided with a first thread part and a second thread part, and the thread direction of the first thread part is opposite to that of the second thread part; the two groups of moving pieces are in threaded connection with the first threaded part and the second threaded part respectively;
and the intermittent reciprocating assembly is used for intermittently driving the screw to rotate clockwise and anticlockwise in a reciprocating manner.
5. The concrete raw material screening device with stirring function of claim 4, wherein the intermittent reciprocating assembly comprises:
a first driven gear; the first driven gear is arranged on the screw rod;
a second driven gear; the second driven gear is rotatably arranged on the outer wall of the screening chamber through a first rotating shaft; the first driven gear is meshed with the second driven gear;
a torsion spring; two ends of the torsion spring are respectively connected with the first rotating shaft and the outer wall of the screening chamber;
an incomplete gear; the incomplete gear is intermittently meshed with the second driven gear; the incomplete gear is also connected with the second transmission assembly; when the second reciprocating mechanism drives the screen to do reciprocating linear motion, the second transmission assembly synchronously drives the incomplete gear to rotate.
6. The concrete raw material screening device with stirring function of claim 5, wherein the second transmission assembly comprises:
a driven wheel; the driven wheel is connected with the incomplete gear;
a driving wheel; the driving wheel is connected with the second rotating shaft; the second rotating shaft is rotatably arranged on the outer wall of the screening chamber and is connected with the second reciprocating mechanism;
the transmission part is used for enabling the driven wheel and the driving wheel to synchronously rotate; the driven wheel is in transmission connection with the driving wheel through the transmission part;
the driving piece is used for driving the second rotating shaft to rotate; the driving piece is connected with the second rotating shaft.
7. The concrete raw material screening device with stirring function according to claim 6, wherein the second reciprocating mechanism comprises:
a second slider; the second sliding block is in sliding fit with the inner wall of the screening chamber; the screen is arranged on the second sliding block;
a second guide for linear movement of the screen along the second guide;
a connecting rod; the connecting rod is connected with the second sliding block;
a turntable; the rotary table is connected with the second rotating shaft;
a movable rod; one end of the movable rod is rotatably connected with the connecting rod, and the other end of the movable rod is rotatably arranged at the eccentric position of the turntable.
8. The concrete raw material screening device with stirring function according to claim 6, wherein the second reciprocating mechanism comprises:
a second slider; the second sliding block is in sliding fit with the inner wall of the screening chamber; the screen is arranged on the second sliding block;
a second guide for linear movement of the screen along the second guide;
a connecting rod; the connecting rod is connected with the second sliding block;
the cam is used for intermittently driving the connecting rod to perform linear motion; the cam is connected with the second rotating shaft and is positioned on one side, far away from the second sliding block, of the connecting rod;
a spring; and two ends of the spring are respectively connected with the second sliding block and the inner wall of the screening chamber.
CN202010277278.9A 2020-04-10 2020-04-10 Concrete raw material screening device with stirring function Withdrawn CN111482359A (en)

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Application Number Priority Date Filing Date Title
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Application publication date: 20200804