CN207086307U - Sand sieving machine - Google Patents

Abstract

The utility model discloses a kind of sand sieving machine, it is intended to solves the problems, such as effectively handle retentate on filter, its drip irrigation device is：A kind of sand sieving machine, including frame, vertical rising passway and the decline passway parallel to rising passway are provided with frame, rising passway and decline passway upper and lower ends are rotatably connected to driven roller respectively, four driven rollers are wound with conveyer belt, and driven by being provided with drive mechanism, conveyer belt outer surface is fixedly installed some filters, rising passway is provided with feed mechanism in communication, at least one filter all the time be present below the feed mechanism port of export, fine sand collecting box is provided with immediately below rising passway, grit collection box is provided with immediately below decline passway.A kind of sand sieving machine of the present utility model, by setting the filter of multiple cycle operations, so as to which each filter pours out retentate in time after fine sand is filtered, avoid because retentate influences the normal work of sand sieving machine.

Description

Sand sieving machine

Technical field

Concrete Preparation equipment is the utility model is related to, more specifically, it relates to a kind of sand sieving machine.

Background technology

Concrete is a part indispensable in modern house, road, bridge construction, and concrete is needed by certain proportion Cement, sand, rubble, microlith mix, this proportioning will directly affect the quality of concrete；And this is heavy for sand Want particle excessive sand or stone in raw material inevitably be present, the proportioning of each constituent of concrete will be influenceed, Therefore need to screen sand before manufacture.

Modern concrete production plant is typically screened using sand sieving machine to sand, and traditional sand sieving machine typically has extremely A few screen pack, by the conveying device directly over sand transport to screen pack and the collecting box being arranged at below screen pack, When being screened to sand, sand is transported to directly over screen pack by conveying device, and it is vertically dropped in filtering On the net, the tiny sand for meeting production requirement enters the hole through filtering net surface in collecting box, and the sand that volume is excessive Son or stone will be stranded on screen pack；But this part retentate will block the hole of screen pack, cause the tiny sand in part Son can not pass through, therefore the problem of generation wastage of material or too low efficiency.

This problem, typically being obliquely installed by screen pack are directed in traditional mode of production, attempt allows retentate to slip away automatically Screen pack（Specifically refer to the double-deck vibration mesh screen sand mechanism of one kind that the Chinese patent that notification number is CN205463205U is announced）； But there is filter surface intensive hole to cause its frictional force larger, and sandstone is irregular shape, by eminence drop in Part-structure is there may be when on filter to be stuck in hole；In summary, by way of being obliquely installed filter, Ke Nengwu Method effectively handles retentate.

Therefore need to propose a kind of new scheme to solve this problem.

Utility model content

In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of sand sieving machine, it is more by setting The filter of individual cycle operation, so as to which each filter pours out retentate in time after fine sand is filtered, avoid because retentate influences The normal work of sand sieving machine.

Above-mentioned technical purpose of the present utility model technical scheme is that：A kind of sand sieving machine, including Frame, is provided with vertical rising passway and the decline passway parallel to rising passway in the frame, the rising passway and Decline passway upper and lower ends are rotatably connected to driven roller respectively, and four driven rollers are wound with conveyer belt, and by being provided with Drive mechanism drives, and the conveyer belt outer surface is fixedly installed some filters, and the filter is equidistantly and perpendicular to fortune Defeated belt surface, the rising passway are provided with feed mechanism in communication, existed all the time below the feed mechanism port of export At least one filter, the rising passway underface are provided with fine sand collecting box, are provided with immediately below the decline passway thick Sand collecting box.

By using above-mentioned technical proposal, during being screened to sand, sand is entered upper by feed mechanism Rise in passage, drop on the filter in rising passway, being acted on tiny sand by gravity will fall downwards through filter Fall（It may pass through more than one layer of filter）, into fine sand collecting box；It is stranded in the coarse sand or stone of filter upper surface Hole can not be passed through, will be driven by filter, after being moved in decline passway, filter is overturn（That is upper surface court Under）, retentate or fall into grit collection box or drop in the back side of lower section filter, continuously move to decline passway bottom, it is stagnant Thing is stayed in second of switching process of filter（Under vertical state during movement）Fall into completely in grit collection box；It is above-mentioned Fine sand is screened for one filter, pours out the process of coarse sand, to realize the husky continuity of sieve to improve operating efficiency, in conveyer belt Surface sets multiple filters（To ensure at least one filtering being all the time present in feed mechanism port of export lower section in rising passway Plate）, by the loopy moving of multiple filters, reach and uninterruptedly synchronously carry out screening fine sand, pour out coarse sand operation, so as to true While protecting sand sieving machine operating efficiency, retentate is poured out in time, effectively avoids influenceing sand sieving machine because retentate blocks hole Normal work.

The utility model is further arranged to：The rising passway and decline passway are that upper and lower ends have the hollow of opening Rectangular metal cylinder, rising passway and decline passway the opposite side upper and lower ends are provided with the receiving for accommodating driven roller Groove.

By using above-mentioned technical proposal, holding tank is set to be used to accommodate driven roller so that driven roller periphery is tangential on Rising passway and decline passway opposite side internal face, so as to which conveyer belt can be bonded rising passway and decline passway opposite side inwall Face, the problem of effectively preventing sand by conveyer belt with being slid in the gap of rising passway or decline passway.

The utility model is further arranged to：The filter includes the framework fixed with conveyer belt and is fixed on framework Interior screen pack, framework both sides midpoint are provided with slipping block, and rising passway and decline passway both sides the internal face edge is sliding Move block motion track and offer slippage slot.

By using above-mentioned technical proposal, slipping block sliding is connected in slippage slot, so as to determine one directly according to 2 points The principle of line, effectively avoid filter from being rotated using the connection end of itself and conveyer belt as center of rotation, cause filter Tilt, material slides downwards without hole.

The utility model is further arranged to：The holding tank two side offers rotation hole, and the driven roller both ends are set The rotary shaft being rotatably assorted with rotation hole is equipped with, bearing is provided between the rotation hole and rotary shaft.

By using above-mentioned technical proposal, driven roller is realized by the cooperation between rotation hole and rotary shaft and is rotationally connected with Rising passway（Decline passway）The technical requirements of upper and lower ends；And bearing is set between rotation hole and rotary shaft, so as to utilize Bearing reduces the characteristic of frictional force, reduces friction between the two so that driven roller rotates more smooth.

The utility model is further arranged to：The drive mechanism include be fixed in frame motor, fixation set The drive pulley of driving motor output shaft is placed in, two relative rotary shafts of oblique angle extend holding tank outside wall surface end point Driven pulley is not fixedly installed, and drive belt is respectively arranged between the drive pulley and two driven pulleies.

By using above-mentioned technical proposal, during motor rotates, drive belt is driven to rotate by frictional force, Drive belt drives driven pulley to rotate by frictional force, so as to the driven roller synchronous axial system fixed with driven pulley；And Drive two relative driven rollers of oblique angle to rotate by two drive belts, ensuring that driving force is enough the premise for driving conveyer belt Under, drive two driven rollers to improve the harmony that two driven rollers rotate respectively compared to two motors.

The utility model is further arranged to：The spacing of the rising passway and decline passway is equal to the length of rising passway Degree, the conveyer belt are integrally square.

By using above-mentioned technical proposal, improve the spacing between rising passway and decline passway, so as to effectively avoid because The extraneous factors such as wind, cause sand can not fall into corresponding collecting box.

The utility model is further arranged to：The frame is fixedly installed baffle plate in horizontal segment both sides on conveyer belt.

By using above-mentioned technical proposal, baffle plate is set, avoids sand on conveyer belt during horizontal segment transport, by Conveyer belt both sides drop off conveyer belt.

The utility model is further arranged to：The fine sand collecting box and grit collection box are only upper surface hatch frame Rectangular housing, both bottom center are fixedly installed circular cone respectively, two circular cone vertex of a cones difference face rising passways and Decline passway.

By using above-mentioned technical proposal, fine sand collecting box and grit collection box are caught to be fallen by top by upper surface opening The sand fallen；Circular cone is set in both bottom center, so as to guide sand to be slided to surrounding, avoids sand from being piled up at one, shape Fine sand collecting box or the actual capacity of grit collection box are influenceed into " Tu Bao ".

The utility model is further arranged to：The feed mechanism include the feeding tube that is connected with rising passway side wall with And feeding box, the feeding box are in integrally funnel-form, the feeding tube is obliquely installed, and its bottom connects with rising passway, and it is pushed up End connects with feeding box bottom.

By using above-mentioned technical proposal, feeding tube is arranged to diagonally downward, so as to which sand can be slipped into by gravity In rising passway；Feeding box is arranged to funnel-form so that feeding box disposably adds substantial amounts of sand, between avoiding the need for not Disconnected feeding, cause to occur the problem of wasting worker labour.

The utility model is further arranged to：The feeding tube is hollow cylinder, is rotatably connected in the feeding tube Rotating shaft, by setting rotary electric machine to drive, the shaft circumference surface helix is provided with fin for the rotating shaft.

By using above-mentioned technical proposal, rotary electric machine drives axis of rotation, and spiral sets the fin with shaft circumference face Concomitant rotation, thrust is produced to the sand being adhered in feeding tube, so as to play a part of dredging feeding tube.

In summary, the utility model has the advantages that：By setting feed mechanism to add materials；Driving is set Mechanism drives driven roller to rotate, and driven roller drives conveyer belt loopy moving during rotating, and sets on conveyer belt multiple Filter, filter loopy moving therewith, so as to synchronously carry out screening fine sand by multiple filters, pour out the work of coarse sand, with The continuity of sand sieving machine work is realized, while effectively avoids blocking the hole of filter because of retentate；Led to by setting to rise The fine sand of road boot symbol symphysis production enters fine sand collecting box, and sets decline passway guiding retentate to enter grit collection box.

Brief description of the drawings

Fig. 1 is overall structure diagram of the present utility model；

Fig. 2 is that the utility model hides the half sectional view after feed mechanism, the main internal structure for representing sand sieving machine;

Fig. 3 is the overall structure of the utility model conveyer belt, main to represent conveyer belt and the matching relationship of drive mechanism；

Fig. 4 is Fig. 3 A portions enlarged diagram, the main matching relationship for representing driven roller and conveyer belt；

Fig. 5 is partial sectional view of the present utility model, the main matching relationship for representing driven roller and holding tank；

Fig. 6 is the half sectional view of the utility model feed mechanism, the main internal structure for representing feed mechanism.

In figure：1st, frame；11st, rising passway；12nd, decline passway；13rd, driven roller；14th, conveyer belt；141st, framework；142、 Screen pack；143rd, slipping block；144th, slippage slot；15th, filter；16th, fine sand collecting box；17th, grit collection box；18th, circular cone； 21st, motor；22nd, drive pulley；23rd, holding tank；24th, rotation hole；25th, rotary shaft；26th, bearing；27th, follower belt Wheel；28th, drive belt；29th, baffle plate；31st, feeding tube；32nd, feeding box；33rd, rotating shaft；34th, fin；35th, rotary electric machine.

Embodiment

With reference to the accompanying drawings and examples, the utility model is described in detail.

Sand sieving machine, as shown in Figure 1 and Figure 2, including frame 1, rising passway 11 is vertically arranged with and parallel to upper in frame 1 The decline passway 12 of passage 11 is risen, wherein rising passway 11 and decline passway 12 is the hollow square that only upper and lower ends have opening Shape metal cartridge, and the spacing of rising passway 11 and decline passway 12 is equal to the length of rising passway 11；Rising passway 11 is with The drop upper and lower ends of passage 12 are rotatably connected to driven roller 13 respectively, and four driven rollers 13 are wound with conveyer belt 14, and conveyer belt 14 is whole Body is square, and conveyer belt 14 is the rubber strip with deformability, and driven roller 13 is driven by being provided with drive mechanism, driving The loopy moving of conveyer belt 14 is driven by frictional force during the rotation of roller 13；The equidistant bolt in the outer surface of conveyer belt 14 is fixed with 12 filters 15, each filter 15 are fixedly installed perpendicular to conveyer belt 14, rising passway 11 in side wall midpoint all the time There is feed mechanism in communication, due to 12 spaced sets of filter 15, therefore below the feed mechanism port of export all the time extremely A rare filter 15, unscreened sand are entered in rising passway 11 by feed mechanism, dropped in rising passway 11 On interior filter 15, meet the hole that the fine sand of production requirement is passed through filter 15 by Action of Gravity Field, along rising passway 11 to Under fall, be provided with fine sand collecting box 16 immediately below rising passway 11, the fine sand of production met for receiving；Filtering can not be passed through The coarse sand and stone of plate 15 are promoted by filter 15, with the synchronizing moving of filter 15, and enter decline passway 12, now filter 15 just facing to therefore retentate drops downwards, strikes against the back side of filter 15 of lower section（Shake off and be adhered to lower section filter 15 On obstinate retentate）；Filter 15 is changed into vertical shape from horizontality after filter 15 is moved to 12 bottom of decline passway State, so as to which retentate is no longer influenced by support force because gravity departs from filter 15, and grit collection is set below decline passway 12 Case 17, for collecting this part retentate；The above-mentioned course of work for one filter 15,11 filters 15 are with identical in addition Mode synchronous operation, so as to which the utility model possesses the uninterrupted technique effect for screening fine sand, pouring out coarse sand, while can be timely Retentate is poured out, is avoided because retentate blocks the hole of filter 15.

Because conveyer belt 14 has deformability, to avoid, because of the run-off the straight of filter 15, causing sand without filter 15 hole drops downwards, and as shown in Figure 2 and Figure 3, filter 15 includes the rectangular rigid metal fixed with the bolt of conveyer belt 14 Framework 141 and the screen pack 142 being fixedly welded in framework 141, the both sides midpoint of framework 141 integrally formed with slipping block 143, Rising passway 11 and the both sides internal face of decline passway 12 offer slippage slot 144 along the motion track of slipping block 143, so as to pass through cunning Move between block 143 and slippage slot 144 and be embedded the improper rotation for coordinating limitation filter 15.

Retentate has following three direction of motion during being moved with filter 15 in such scheme（Do not consider to turn to Process）：1st, moved straight up in rising passway 11；2nd, the level that rising passway 11 is moved to during decline passway 12 It is mobile；3rd, moved straight down in decline passway 12；During the moving horizontally of above three direction, the both sides of conveyer belt 14 Lack it is effective stop, to avoid sand from being dropped conveyer belt 14 by both sides, as shown in Figure 1 and Figure 2, frame 1 is horizontal in conveyer belt 14 Mobile section both sides are welded with baffle plate 29, and the both sides of conveyer belt 14 are bonded with the baffle plate 29 of homonymy respectively.

Four driven rollers 13 are rotationally connected with rising passway 11 and the upper and lower ends of decline passway 12 respectively in the following way, As shown in Figure 2 and Figure 3, the upper and lower ends of rising passway 11 and the opposite side of decline passway 12 are provided with for accommodating driven roller 13 Holding tank 23, driven roller 13 is rotationally connected with holding tank 23, and the periphery of driven roller 13 is tangential on rising passway under this state 11 and the opposite side internal face of decline passway 12, fitted in so as to be wound in the inner surface of conveyer belt 14 of four peripheries of driven roller 13 Rising passway 11 and the opposite side internal face of decline passway 12, with prevent sand by the inner surface of conveyer belt 14 and rising passway 11 or under Drop and dropped out in the gap of passage 12；As shown in Figure 4, Figure 5, the two side of holding tank 23 offers rotation hole 24, the both ends of driven roller 13 The rotary shaft 25 being rotatably assorted with rotation hole 24 is provided with, bearing 26, bearing 26 are provided between rotation hole 24 and rotary shaft 25 Inner circle is fixed with rotary shaft 25, and its is cylindrical to fix with rotation hole 24, so as to pass through the cooperation between rotation hole 24 and rotary shaft 26 Driven roller 13 and the rotation connection of rising passway 11 or decline passway 12 are realized, and the characteristic of frictional force is reduced using bearing 26, Reduce the frictional force between rotation hole 24 and rotary shaft 26 so that driven roller 13 rotates more smooth.

Drive mechanism drives driven roller 13 to rotate in the following way, and as shown in Figure 2 and Figure 3, drive mechanism includes being fixed on Motor 21 in frame 1, the drive pulley 22 for being fixedly installed on the output shaft of motor 21.Wherein oblique angle it is relative two Individual rotary shaft 25 extends the outside wall surface end of holding tank 23 and is fixedly installed driven pulley 27 respectively, drive pulley 22 and two Drive belt 28 is respectively arranged between driven pulley 27, motor 21 drives drive pulley 22 to rotate, drive pulley Wheel 22 is rotated during rotating by frictional force drive drive belt 28, and drive belt 28 drives follower belt by frictional force Wheel 27 rotates, the concomitant rotation of driven roller 13 fixed with driven pulley 27.

To avoid because sand drops in the same area of fine sand collecting box 16 and grit collection box 17, as shown in Fig. 2 fine sand Collecting box 16 and grit collection box 17 are the rectangular housing of only upper surface hatch frame, and both bottom center are integrally formed respectively There are circular cone 18, two vertex of a cone of circular cone 18 difference face rising passways 11 and decline passway 12, so as to guide sand by circular cone 18 Slided to fine sand collecting box 16 or the inside edge of grit collection box 17.

Feed mechanism is in the following way by sand transport to rising passway 11, and as shown in Fig. 1, Fig. 6, feed mechanism includes The feeding tube 31 and feeding box 32 connected with the side wall of rising passway 11, it is in funnel-form that feeding box 32 is overall, and feeding tube 31 inclines Tiltedly set, its bottom connects with rising passway 11, and its top connects with the bottom of feeding box 32, is disposably added in feeding box 32 High-volume sand, sand enters feeding tube 31 by its bottom, and is slipped into along feeding tube 31 in rising passway 11；To avoid feeding tube 31 block, and feeding tube 31 is hollow cylinder, rotating shaft 33 is rotatably connected in feeding tube 31, rotating shaft 33 is by setting rotary electric machine 35 drivings, the periphery of rotating shaft 33 are welded with spiral fin 34, and rotary electric machine 35 drives rotating shaft 33 to rotate, is fixed on The concomitant rotation of fin 34 of the periphery of rotating shaft 33, so as to produce downward thrust to sand, effectively sand is avoided to be jammed in feeding In pipe 31.

Described above is only preferred embodiment of the present utility model, and the scope of protection of the utility model is not limited merely to Above-described embodiment, all technical schemes belonged under the utility model thinking belong to the scope of protection of the utility model.It should refer to Go out, for those skilled in the art, some improvement under the premise of the utility model principle is not departed from and Retouching, these improvements and modifications also should be regarded as the scope of protection of the utility model.

Claims (10)

1. a kind of sand sieving machine, including frame（1）, it is characterised in that：The frame（1）Inside it is provided with vertical rising passway （11）With parallel to rising passway（11）Decline passway（12）, the rising passway（11）And decline passway（12）Upper and lower ends Driven roller is rotatably connected to respectively（13）, four driven rollers（13）It is wound with conveyer belt（14）, and by being provided with driving Mechanism drives, the conveyer belt（14）Outer surface is fixedly installed some filters（15）, the filter（15）Equidistantly and Perpendicular to conveyer belt（14）Surface, the rising passway（11）Feed mechanism in communication is provided with, the feed mechanism goes out At least one filter all the time be present below end in mouth（15）, the rising passway（11）Underface is provided with fine sand collecting box （16）, the decline passway（12）Underface is provided with grit collection box（17）.

2. sand sieving machine according to claim 1, it is characterised in that：The rising passway（11）And decline passway（12）It is Upper and lower ends have the hollow rectangle metal cartridge of opening, the rising passway（11）And decline passway（12）Two above and below opposite side End is provided with for accommodating driven roller（13）Holding tank（23）, the driven roller（13）It is rotationally connected with holding tank（23） It is interior.

3. sand sieving machine according to claim 2, it is characterised in that：The filter（15）Including with conveyer belt（14）It is fixed Framework（141）And it is fixed on framework（141）Interior screen pack（142）, the framework（141）Both sides midpoint is provided with sliding Block（143）, the rising passway（11）And decline passway（12）Both sides internal face is along slipping block（143）Motion track offers cunning Move groove（144）, the slipping block（143）Sliding is connected to slippage slot（144）It is interior.

4. sand sieving machine according to claim 2, it is characterised in that：The holding tank（23）Two side offers rotation hole （24）, the driven roller（13）It is provided at both ends with and rotation hole（24）The rotary shaft being rotatably assorted（25）, the rotation hole（24） With rotary shaft（25）Between be provided with bearing（26）.

5. sand sieving machine according to claim 4, it is characterised in that：The drive mechanism includes being fixed on frame（1）On Motor（21）, be fixedly installed on motor（21）The drive pulley of output shaft（22）, described in relative two in oblique angle Rotary shaft（25）Extend holding tank（23）Outside wall surface end is fixedly installed driven pulley respectively（27）, the drive pulley （22）With two driven pulleies（27）Between be respectively arranged with drive belt（28）.

6. sand sieving machine according to claim 1, it is characterised in that：The rising passway（11）With decline passway（12）Between Away from equal to rising passway（11）Length, the conveyer belt（14）It is overall square.

7. sand sieving machine according to claim 6, it is characterised in that：The frame（1）In conveyer belt（14）Upper horizontal segment two Side is fixedly installed baffle plate（29）, the conveyer belt（14）Both sides respectively with baffle plate（29）Fitting.

8. sand sieving machine according to claim 1, it is characterised in that：The fine sand collecting box（16）And grit collection box（17） It is the rectangular housing of only upper surface hatch frame, both bottom center are fixedly installed circular cone（18）, two circular cones （18）The vertex of a cone distinguishes face rising passway（11）And decline passway（12）.

9. sand sieving machine according to claim 1, it is characterised in that：The feed mechanism includes and rising passway（11）Side wall The feeding tube of face connection（31）And feeding box（32）, the feeding box（32）Overall is in funnel-form, the feeding tube（31）Incline Tiltedly set, its bottom and rising passway（11）Connection, its top and feeding box（32）Bottom connects.

10. sand sieving machine according to claim 9, it is characterised in that：The feeding tube（31）For hollow cylinder, it is described on Expects pipe（31）Inside it is rotatably connected to rotating shaft（33）, the rotating shaft（33）By setting rotary electric machine（35）Driving, the rotating shaft （33）Circumference surface helix is provided with fin（34）.