CN111203377A

CN111203377A - Sand screening device for building construction

Info

Publication number: CN111203377A
Application number: CN202010248689.5A
Authority: CN
Inventors: 陆彬燕
Original assignee: Individual
Current assignee: Hunan Youyi Building Materials Co ltd
Priority date: 2020-04-01
Filing date: 2020-04-01
Publication date: 2020-05-29
Anticipated expiration: 2040-04-01
Also published as: CN111203377B

Abstract

The invention relates to a building construction sand screening device which comprises a machine body fixedly mounted on a supporting block, wherein a sand screening cavity is arranged in the machine body, a conical cavity with an upward opening is arranged above the sand screening cavity, a sand outlet groove is communicated between the conical cavity and the sand screening cavity, a fine sand discharge port communicated with the outside and obliquely arranged is arranged at the left end of the sand screening cavity, a lower coarse sand discharge port communicated with the outside and obliquely arranged is arranged at the right end of the sand screening cavity, an upper coarse sand discharge port is parallelly arranged above the lower coarse sand discharge port, a vertical groove communicated with the upper coarse sand discharge port and the lower coarse sand discharge port is arranged at the right end of the upper coarse sand discharge port, and a bottom groove communicated with the outside is arranged at the bottom of the sand screening cavity.

Description

Sand screening device for building construction

Technical Field

The invention relates to the field of building construction, in particular to a sand screening device for building construction.

Background

Engineering construction's in-process fine sand is essential material, fine sand is used with cement usually, because the required precision is higher in some projects, therefore, the thickness of sand is also very critical, traditional artifical screening sand equipment is simple, but efficiency is very low, and the phenomenon that the sieve mesh was blocked to the sand often can appear in the screening sand in-process during some mechanical type screening sand equipment, if not in time handle, can influence effect and efficiency of sieving, but often need shut down in the processing procedure and stretch into organism in-process with the instrument, because shut down the machine repeatedly to the motor, can influence the life-span of motor, and treatment effeciency is lower, also there is the potential safety hazard.

Disclosure of Invention

Aiming at the technical defects, the invention provides a sand screening device for building construction, which can overcome the defects.

The invention relates to a building construction sand screening device, which comprises a machine body fixedly arranged on a supporting block, wherein a sand screening cavity is arranged in the machine body, a conical cavity with an upward opening is arranged above the sand screening cavity, a sand outlet groove is communicated and arranged between the conical cavity and the sand screening cavity, a fine sand discharge port communicated with the outside and obliquely arranged is arranged at the left end of the sand screening cavity, a lower coarse sand discharge port communicated with the outside and obliquely arranged is arranged at the right end of the sand screening cavity, an upper coarse sand discharge port is parallelly arranged above the lower coarse sand discharge port, a vertical groove communicated with the upper coarse sand discharge port and the lower coarse sand discharge port is arranged at the right end of the upper coarse sand discharge port, a bottom groove communicated with the outside is arranged at the bottom of the sand screening cavity, an overturning adjusting assembly is arranged in the middle of the sand screening cavity, the overturning adjusting assembly comprises a rotating shaft rotatably arranged in the front end wall and the rear end wall of the sand screening cavity, and a guide plate rotating in the sand screening cavity is fixedly arranged on the, upset adjusting part top is provided with the subassembly that sieves, the subassembly that sieves includes the last sieve plate that sets up with sieve sand intracavity wall fixed connection and slope and is located but go up sieve below and alternate segregation's lower sieve plate, go up the sieve plate up end with go up coarse sand row mouth lower end wall parallel and level, it has the vibrator to go up sieve plate up end fixed mounting, the subassembly top that sieves is provided with the dispersion subassembly, still be provided with in the organism and be used for the drive sieve plate lapse drives simultaneously the lifting unit of upset adjusting part upset.

Preferably, the lifting assembly comprises second sliding grooves symmetrically arranged in the front end wall and the rear end wall of the sand screening cavity, a rack is arranged in the second sliding groove in a sliding manner, a gear fixedly connected with the rotating shaft is meshed and arranged at the right end of the lower side of the rack, a fourth sliding groove is communicated between the second sliding groove and the sand sieving cavity, a connecting plate fixedly connected with the lower sieve plate and the rack is arranged in the fourth sliding groove in a sliding way, a third sliding groove is arranged in the bottom wall of the fourth sliding groove, a sealing plate fixedly connected with the connecting plate is arranged in the third sliding groove in a sliding manner, a belt groove extending forwards and backwards is arranged above the sand sieving cavity, a screw rod is rotatably arranged between the belt groove and the second sliding groove, the lower end of the screw rod extends into the second sliding groove and is in threaded connection with the rack, and the upper end of the screw rod extends into the belt groove and is fixedly provided with a belt wheel.

Preferably, the dispersion subassembly is including being located go up the dispersion impeller of sieve plate top, dispersion impeller upper end fixed mounting have rotate install in power shaft in the sieve sand chamber roof, power shaft upper end power be connected with belt groove top wall fixed connection's motor, power shaft periphery upper end fixed mounting has the friction ring, be provided with the dispersion hole on the dispersion impeller, be provided with between belt groove and the sieve sand chamber with the communicating first sliding tray of second sliding tray, be provided with in the first sliding tray with power shaft sliding fit's slider, the slider with fixed mounting has the connecting rod between the rack, first sliding tray with be used for the shutoff between the sieve down go out the shutoff subassembly in sand groove, be provided with on the power shaft and connect the coupling assembling of band pulley.

Preferably, the connecting assembly comprises a belt wheel cylinder rotatably mounted in the upper end wall and the lower end wall of the belt groove, a central hole penetrated by the power shaft is formed in the belt wheel cylinder, the belt wheel cylinder is connected with the belt wheel through a belt, meshing grooves communicated with the central hole are symmetrically formed in the inner wall of the central hole in the left-right direction, meshing blocks are slidably mounted in the meshing grooves, friction plates capable of being matched with the friction rings are fixedly mounted at the inner side ends of the meshing blocks, extension springs fixedly connected with the inner wall of the meshing grooves are fixedly mounted at the outer side ends of the meshing blocks, permanent magnets are further fixedly mounted at the outer side ends of the meshing blocks, and electromagnets are fixedly mounted on the inner wall of the meshing grooves.

Preferably, the shutoff subassembly include with the communicating pulley chamber of first sliding tray and with go out the communicating flexible groove of husky groove, flexible groove with the intercommunication is provided with the wire casing between the pulley chamber, flexible inslot slidable mounting has the shutoff board, shutoff board left end face fixed mounting with flexible groove left end wall fixed connection's roof pressure spring, pulley chamber lower extreme rotates installs down the fixed pulley, pulley chamber upper end rotates installs the fixed pulley, shutoff board left end face fixed mounting has the connection rope, the connection rope passes the wire casing and walk around in proper order go up fixed pulley and lower fixed pulley and with slider fixed connection.

The invention has the beneficial effects that: when the staggered grids are blocked by sand, the lifting assembly can be used for driving the lower screen to move downwards, so that the sand stones blocked in the staggered grids can fall off, and the lifting assembly can also drive the guide plate to turn over simultaneously, so that the sand stones blocked in the staggered grids can be discharged from the lower coarse sand discharge port and can not be discharged from the fine sand discharge port, and meanwhile, the sand outlet groove is blocked by the blocking plate, and the sand which is not sieved when the blocked sand stones are treated is prevented from falling off.

Drawings

In order to more clearly illustrate the embodiments of the 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, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

Fig. 1 is a schematic view of the overall structure of a sand screening device for building construction according to the present invention;

FIG. 2 is a schematic view of the structure in the direction "A-A" of FIG. 1;

FIG. 3 is an enlarged schematic view of the motor of FIG. 1;

fig. 4 is an enlarged schematic view of the motor of fig. 2.

Detailed Description

All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.

The invention will now be described in detail with reference to fig. 1-4, for ease of description, the orientations described below will now be defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

The invention relates to a sand screening device for building construction, which is mainly used for sand screening, and the invention is further explained by combining the attached drawings of the invention:

the invention relates to a sand screening device for building construction, which comprises a machine body 10 fixedly arranged on a supporting block, wherein a sand screening cavity 27 is arranged in the machine body 10, a conical cavity 11 with an upward opening is arranged above the sand screening cavity 27, a sand outlet groove 28 is communicated between the conical cavity 11 and the sand screening cavity 27, a fine sand discharge port 19 which is communicated with the outside and is obliquely arranged is arranged at the left end of the sand screening cavity 27, a lower coarse sand discharge port 23 which is communicated with the outside and is obliquely arranged is arranged at the right end of the sand screening cavity 27, an upper coarse sand discharge port 25 is arranged above the lower coarse sand discharge port 23 in parallel, a vertical groove 24 which is communicated with the upper coarse sand discharge port 25 and the lower coarse sand discharge port 23 is arranged at the right end of the upper coarse sand discharge port 25, a bottom groove 22 which is communicated with the outside is arranged at the bottom of the sand screening cavity 27, an overturning adjusting assembly is arranged in the middle of the sand screening cavity 27, and the overturning adjusting assembly determines whether screened sand is discharged from the fine sand discharge port 19 or discharged from the lower coarse sand discharge port 23, the roll-over adjustment assembly comprises a rotary shaft 21 rotatably mounted in the front and rear end walls of the sand screening chamber 27, the rotating shaft 21 is fixedly provided with a guide plate 20 which rotates in the sand sieving cavity 27, a sieving component is arranged above the overturning adjusting component, the sieving component comprises an upper sieve plate 17 fixedly connected with the inner wall of the sand sieving cavity 27 and obliquely arranged, and a lower sieve plate 18 which is positioned below the upper sieve plate 17 and can be separated from each other, the upper end surface of the upper sieve plate 17 is flush with the lower end wall of the upper coarse sand discharge port 25, the upper end surface of the upper sieve plate 17 is fixedly provided with a vibrator 26, a dispersion component is arranged above the sieving component, the dispersion component can disperse the sand which is not sieved on the upper sieve plate 17, the machine body 10 is also provided with a lifting assembly for driving the lower sieve plate 18 to slide downwards and driving the turnover adjusting assembly to turn over.

Beneficially, the lifting assembly includes second sliding grooves 35 symmetrically disposed in the front and rear end walls of the sand sieving chamber 27, a rack 33 is slidably mounted in the second sliding grooves 35, a gear 34 fixedly connected to the rotating shaft 21 is engaged and mounted at the right end of the lower side of the rack 33, a fourth sliding groove 37 is disposed between the second sliding grooves 35 and the sand sieving chamber 27 in a communicating manner, a connecting plate 39 fixedly connected to the lower sieve plate 18 and the rack 33 is slidably mounted in the fourth sliding groove 37, a third sliding groove 36 is disposed in the bottom wall of the fourth sliding groove 37, a sealing plate 38 fixedly connected to the connecting plate 39 is slidably mounted in the third sliding groove 36, the sealing plate 38 can prevent sand from entering into the second sliding grooves 35, a belt groove 30 extending forward and backward is disposed above the sand sieving chamber 27, and a screw 32 is rotatably mounted between the belt groove 30 and the second sliding grooves 35, the lower end of the screw rod 32 extends into the second sliding groove 35 and is in threaded connection with the rack 33, the upper end of the screw rod 32 extends into the belt groove 30 and is fixedly provided with the belt wheel 31, so that the belt wheel 31 can drive the rack 33 to slide downwards when rotating, the rack 33 can drive the lower sieve plate 18 to slide downwards to be separated from the upper sieve plate 17 in the process of sliding downwards, and meanwhile, the rack 33 drives the gear 34 to rotate clockwise.

Advantageously, the dispersing assembly comprises a dispersing disc 16 positioned above the upper screen plate 17, the upper end of the dispersing disc 16 is fixedly provided with a power shaft 15 rotatably arranged in the top wall of the sand screening cavity 27, the upper end of the power shaft 15 is in power connection with a motor 12 fixedly connected with the top wall of the belt groove 30, a friction ring 41 is fixedly arranged at the upper end of the circumferential surface of the power shaft 15, a dispersion hole is arranged on the dispersion disc 16, a first sliding groove 14 communicated with the second sliding groove 35 is arranged between the belt groove 30 and the sand sieving cavity 27, a sliding block 42 which is in sliding fit with the power shaft 15 is arranged in the first sliding groove 14, a connecting rod 54 is fixedly arranged between the sliding block 42 and the rack 33, a plugging component for plugging the sand outlet groove 28 is arranged between the first sliding groove 14 and the lower sieve plate 18, and a connecting component connected with the belt wheel 31 is arranged on the power shaft 15.

Advantageously, the connecting assembly comprises a pulley cylinder 53 rotatably mounted in the upper and lower end walls of the pulley groove 30, a central hole 61 penetrated by the power shaft 15 is formed in the pulley cylinder 53, the pulley cylinder 53 is connected with the pulley 31 through a belt 29, engaging grooves 59 communicated with the central hole 61 are symmetrically formed in the inner wall of the central hole 61 in the left-right direction, engaging blocks 55 are slidably mounted in the engaging grooves 59, friction plates 60 capable of being matched with the friction rings 41 are fixedly mounted at the inner sides of the engaging blocks 55, extension springs 58 fixedly connected with the inner walls of the engaging grooves 59 are fixedly mounted at the outer sides of the engaging blocks 55, permanent magnets 57 are further fixedly mounted at the outer sides of the engaging blocks 55, and electromagnets 56 are fixedly mounted on the inner walls of the engaging grooves 59.

Beneficially, the shutoff subassembly include with the communicating pulley chamber 47 of first sliding tray 14 and with go out the communicating flexible groove 52 of husky groove 28, flexible groove 52 with it is provided with line groove 49 to communicate between the pulley chamber 47, slidable mounting has shutoff board 51 in the flexible groove 52, shutoff board 51 left end face fixed mounting have with flexible groove 52 left end wall fixed connection's top pressure spring 50, pulley chamber 47 lower extreme rotates installs down fixed pulley 46, pulley chamber 47 upper end rotates installs upper fixed pulley 48, shutoff board 51 left end face fixed mounting has connecting rope 43, connecting rope 43 passes through line groove 49 and walk around in proper order upper fixed pulley 48 and lower fixed pulley 46 and with slider 42 fixed connection.

Advantageously, the grid of said upper screen deck 17 and lower screen deck 18 is identical, the grid being staggered when said upper screen deck 17 is against said lower screen deck 18.

Beneficially, an observation window 13 is arranged in the right end wall of the sand sieving cavity 27, transparent glass is installed in the observation window 13, and switches for controlling the on-off of the electromagnet 56, the forward and reverse rotation of the motor 12 and the on-off of the motor 26 are respectively installed on the right end face of the machine body 10.

The following describes in detail the use steps of a sand screening device for building construction with reference to fig. 1 to 4:

at the beginning, the electromagnet 56 is not electrified, under the action of the extension spring 58, the engagement block 55 and the friction plate 60 are retracted in the engagement groove 59, the friction plate 60 is located in the friction ring 41 for cooperation, the connecting rod 54 abuts against the top wall of the first sliding groove 14, the connecting rope 43 is tensioned to retract the plugging plate 51 in the telescopic groove 52, the lower screen plate 18 abuts against the upper screen plate 17, the guide plate 20 inclines to the left, and the upper end face of the guide plate 20 is flush with the bottom wall of the fine sand discharge port 19.

During operation, sand which is not sieved is shoveled into the conical cavity 11, the vibrator 26 is started at the same time, the motor 12 is started in the forward direction, the motor 12 drives the dispersion disc 16 to rotate through the power shaft 15, the sand which is not sieved firstly falls onto the dispersion disc 16, the sand which is not sieved can be dispersed and falls onto the upper sieve plate 17 when the dispersion disc 16 rotates, the vibrator 26 vibrates to sieve the sand, fine sand falls onto the guide plate 20 through the staggered grids and slides out of the fine sand discharge port 19, and the sand which does not pass through the staggered grids slides out of the upper coarse sand discharge port 25, the vertical groove 24 and the lower coarse sand discharge port 23 in sequence, so that the sand sieving operation is completed;

when a lot of sand is observed to be blocked in the staggered grids, the electromagnet 56 is electrified, the inner end of the electromagnet 56 generates the same magnetic pole as the outer end of the permanent magnet 57, so as to drive the friction plate 60 to be matched with the friction ring 41, the belt wheel cylinder 53 is driven to rotate by the belt 13, the belt wheel cylinder 31 is driven to rotate by the belt 29, the belt wheel 31 drives the rack 33 to slide downwards by the screw 32, the rack 33 drives the lower sieve plate 18 to slide downwards by the connecting plate 39, simultaneously, the rack 33 drives the gear 34 to rotate, the gear 34 drives the guide plate 20 to rotate clockwise by the rotating shaft 21, the rack 33 drives the sliding block 42 to slide downwards by the connecting rod 54, and the blocking plate 51 is pushed into the sand outlet groove 28 to block the sand outlet groove 28 under the action of the jacking spring 50 during the downward sliding of the sliding block 42, and as the lower sieve plate 18 gradually slides downwards, the blocked sand falls onto the guide plate 20, and due to the clockwise rotation of the guide plate 20, the guide plate 20 pours the large sand falling onto the guide plate out of the lower coarse sand discharge port 23, after the blocked sand is discharged, the motor 12 is started reversely to reset the lower sieve plate 18, when the lower sieve plate 18 is reset, the electromagnet 56 is powered off, the plugging plate 51 is contracted into the telescopic groove 52 to enable the lower coarse sand discharge port 23 to drop the sand again, the guide plate 20 inclines leftwards, and the upper end surface of the guide plate 20 is flush with the bottom wall of the fine sand discharge port 19, so that the sand screening work is restarted.

The above description is only an embodiment of the invention, but the scope of the invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the invention. Therefore, the protection scope of the invention should be subject to the protection scope defined by the claims.

Claims

1. The utility model provides a construction screening sand device, includes the organism of fixed mounting on a piece, be provided with the screening sand chamber in the organism, screening sand chamber top is provided with opening toper chamber up, the toper chamber with the intercommunication is provided with out husky groove between the screening sand chamber, screening sand chamber left end is provided with the fine sand row mouth that sets up with outside communicating and slope, screening sand chamber right-hand member is provided with the lower coarse sand row mouth that sets up with outside communicating and slope, coarse sand row mouth top parallel arrangement has a coarse sand row mouth down, it is provided with the vertical groove that coarse sand row mouth and coarse sand row mouth down in the intercommunication to go up coarse sand row mouth right-hand member, screening sand chamber bottom be provided with the communicating bottom groove of outside, its characterized in that: sieve sand cavity middle part is provided with upset adjusting part, upset adjusting part installs including rotating the axis of rotation in the end wall around the sieve sand cavity, fixed mounting has in the axis of rotation sieve sand cavity pivoted baffle, upset adjusting part top is provided with the subassembly that sieves, the subassembly that sieves includes the last sieve plate that sets up with sieve sand cavity inner wall fixed connection and slope and is located but go up sieve below and alternate segregation's lower sieve plate, go up the sieve plate up end with go up coarse sand row mouth lower end wall parallel and level, it has the vibrator to go up sieve plate up end fixed mounting, it is provided with the dispersion subassembly to sieve the subassembly top, still be provided with in the organism and be used for the drive sieve plate lapse drives simultaneously the lifting unit of upset adjusting part upset.

2. The sand screening device for building construction as claimed in claim 1, wherein: the lifting component comprises second sliding grooves which are symmetrically arranged in the front end wall and the rear end wall of the sand sieving cavity, racks are arranged in the second sliding grooves in a sliding way, a gear fixedly connected with the rotating shaft is meshed and installed at the right end of the lower side of the rack, a fourth sliding groove is communicated and arranged between the second sliding groove and the sand sieving cavity, a connecting plate fixedly connected with the lower sieve plate and the rack is arranged in the fourth sliding groove in a sliding manner, a third sliding groove is arranged in the bottom wall of the fourth sliding groove, a sealing plate fixedly connected with the connecting plate is arranged in the third sliding groove in a sliding manner, a belt groove extending forwards and backwards is arranged above the sand sieving cavity, the belt groove with rotate between the second sliding tray and install the screw rod, the screw rod lower extreme stretches into the second sliding tray with rack thread connects, the screw rod upper end stretches into belt inslot and fixed mounting has the band pulley.

3. The sand screening device for building construction as claimed in claim 2, wherein: the dispersion subassembly is including being located go up the dispersion impeller of sieve plate top, dispersion impeller upper end fixed mounting have rotate install in power shaft in the sieve sand chamber roof, power shaft upper end power be connected with belt groove roof fixed connection's motor, power shaft periphery upper end fixed mounting has the friction ring, be provided with the dispersion hole on the dispersion impeller, be provided with between belt groove and the sieve sand chamber with the communicating first sliding tray of second sliding tray, be provided with in the first sliding tray with power shaft sliding fit's slider, the slider with fixed mounting has the connecting rod between the rack, first sliding tray with be used for the shutoff between the sieve down go out the shutoff subassembly in sand groove, be provided with on the power shaft and connect the coupling assembling of band pulley.

4. A construction screening apparatus as claimed in claim 3, wherein: the connecting assembly comprises a belt wheel cylinder which is rotatably installed in the upper end wall and the lower end wall of the belt groove, a central hole which is penetrated through by the power shaft is formed in the belt wheel cylinder, the belt wheel cylinder is connected with the belt wheel through a belt, meshing grooves which are communicated with the central hole are symmetrically formed in the inner wall of the central hole in a bilateral mode, meshing blocks are installed in the meshing grooves in a sliding mode, friction plates which can be matched with the friction rings are fixedly installed at the inner side ends of the meshing blocks, extension springs which are fixedly connected with the inner wall of the meshing grooves are fixedly installed at the outer side ends of the meshing blocks, permanent magnets are further fixedly installed at the outer side ends of the meshing blocks, and electromagnets are fixedly.

5. The sand screening device for building construction as claimed in claim 4, wherein: the shutoff subassembly include with communicating pulley chamber of first sliding tray and with go out the communicating flexible groove in husky groove, flexible groove with the intercommunication is provided with the wire casing between the pulley chamber, flexible inslot slidable mounting has the shutoff board, shutoff board left end face fixed mounting have with flexible groove left end wall fixed connection's roof pressure spring, pulley chamber lower extreme rotates installs down the fixed pulley, pulley chamber upper end rotates installs the fixed pulley, shutoff board left end face fixed mounting has the connection rope, the connection rope passes the wire casing and walk around in proper order go up fixed pulley and lower fixed pulley and with slider fixed connection.

6. The sand screening device for building construction as claimed in claim 1, wherein: the meshes of the upper sieve plate and the lower sieve plate are the same, and the meshes are staggered when the upper sieve plate is abutted against the lower sieve plate.

7. The sand screening device for building construction as claimed in claim 4, wherein: an observation window is arranged in the right end wall of the sand sieving cavity, transparent glass is arranged in the observation window, and switches which are respectively used for controlling the on-off of the electromagnet, controlling the positive and negative rotation of the motor and controlling the starting and closing of the motor are arranged on the right end surface of the machine body.