CN210613895U - Sand screening device - Google Patents

Abstract

The utility model relates to a sand screening device, which comprises a supporting frame, wherein the top end of the supporting frame is downwards hinged with a pulling plate, the lower end of the pulling plate is fixedly connected with a sand containing barrel, and the bottom of the sand containing barrel is provided with a through hole for sand leakage; and a sand screening net is arranged below the through hole and fixedly connected to the support. The sand bucket comprises a sand containing barrel, and is characterized in that a vertically downward stirring shaft is arranged in the center of the inside of the sand containing barrel, spiral upward helical blades are fixedly connected to the stirring shaft, the upper end of the stirring shaft is fixedly connected with an output shaft of a motor A, and the shell wall of the motor A is fixedly connected to the top end of a support. The method can break the agglomerated sand grains, and improves the utilization rate of the raw material sand.

Description

Sand screening device

Technical Field

The utility model relates to a building field, concretely relates to screening sand device.

Background

In building construction, a wall structure can be built by using concrete artificial plates, and concrete can also be used for in-situ pouring. The concrete is an artificial stone material formed by mixing cement as a main cementing material with water, sand grains and stones according to a certain proportion, and a chemical additive and a mineral admixture are added if necessary. A sand grain needs to screen for making the concrete, at present in the site operation process, sieve sand has the manual work sand screening of adoption, and the slope of the sand screening net is fixed in subaerial, and constructor uses the spade to shovel the sand from the sand pile on ground, then strikes to going up on the sand screening net, and the sand grain that accords with the requirement can pass from the sand screening net, and the sand grain that does not accord with the requirement can fall from the sand screening net face of slope. In this way, when sand impacts the sand screen, part of the sand meeting the requirement is rebounded by the steel wires on the sand screen, and the sand screening efficiency is affected.

The sand screening device has also appeared in the construction field at present, carries out rotatory sand screening in the sand screening bucket that gets into the slope through the feed inlet with the sand, and the conveyer belt has been placed to the below of sand screening bucket, and the sand grain that accords with the requirement can fall into the place that conveys on the conveyer belt to mixed concrete from the clearance of sand screening bucket, and the sand grain that does not accord with the requirement can be followed the slope lower extreme of sand screening bucket and discharged. In this way, the sand entering the sand sieving barrel is often accumulated and stored, and the sand grains placed in the sand sieving barrel are often formed into larger blocks. In order to ensure that sand particles which do not meet the requirements can be discharged out of the sand sieving barrel, the sand sieving barrel is obliquely placed, and the massive sand particles can be rapidly discharged out of the sand sieving barrel, so that waste of raw material sand is caused.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a screening sand device can smash the processing to the grains of sand that has the caking, reduces the waste of raw materials sand, increases operation rate.

The utility model discloses a following technical scheme realizes:

a sand screening device comprises a support frame, wherein the top end of the support frame is downwards hinged with a pulling plate, the lower end of the pulling plate is fixedly connected with a sand containing barrel, and the bottom of the sand containing barrel is provided with a through hole for sand leakage; and a sand screening net is arranged below the through hole and fixedly connected to the support frame. The sand bucket comprises a sand containing barrel, and is characterized in that a vertically downward stirring shaft is arranged in the center of the interior of the sand containing barrel, spiral upward helical blades are fixedly connected to the stirring shaft, the upper end of the stirring shaft is fixedly connected with an output shaft of a motor A, and the shell wall of the motor A is fixedly connected to the top end of a supporting frame.

The utility model discloses a further improvement scheme is, the shape of holding husky bucket is the round platform type, hold husky bucket the stub bar end with arm-tie fixed connection.

The utility model has the further improvement that the side wall of the sand containing barrel is connected with a first end of a push rod which is horizontally arranged, a vertical downward guide rod is fixedly connected below the push rod, the bottom plate is fixedly connected with the support frame, and the guide rod passes through a hole which is arranged on the bottom plate; the second end of the push rod is driven by a driving device.

The utility model discloses a further improvement is, drive arrangement includes the rotary drum of vertical setting, the orbit groove has been seted up to the side of rotary drum, the second end of push rod inserts the orbit inslot, the lower extreme of rotary drum rotate connect in the bottom plate, the upper end of rotary drum and motor B's output shaft fixed connection, motor B's casing wall fixed connection in the top of support.

The utility model discloses a further improvement scheme is, it is in to hold husky bucket the direction of push rod motion is fixed with the guiding groove, the first end of push rod place in the guiding groove.

The utility model discloses a further improvement scheme is, the first end of push rod is rotated and is connected with the gyro wheel, the gyro wheel place in the guiding groove.

The utility model discloses a further improvement is, the below fixedly connected with layer board of through-hole, it has the shrouding that is used for the shutoff through-hole to peg graft between layer board and the through-hole.

The utility model discloses a further improvement scheme is, the slope of screening sand net is fixed in on the support frame.

Compared with the prior art, the utility model, following obvious advantage has:

a vertical downward stirring shaft is arranged in the center of the interior of the sand containing barrel, and spiral upward helical blades are fixedly connected to the stirring shaft. Motor A drive (mixing) shaft is rotatory, and the sand that holds sand bucket central point and put can the upward movement under helical blade's drive, and the sand that is close to the bucket wall can drop to holding sand bucket's central point and put, forms the circulatory motion, and in the motion process, the sand can constantly collide with helical blade and bucket wall, plays certain effect of smashing, and the sand grain that accords with the requirement can fall into through the through-hole and carry out the secondary filter on the screening sand net. The mode can smash the caked sand grains, improves the utilization rate of the raw material sand, enables the sand in the sand containing barrel to move circularly, and is also beneficial to discharging the sand from the through hole.

And secondly, the shape of the sand containing barrel is a round table shape, and the large end of the sand containing barrel is fixedly connected with the pulling plate. The large head end of the sand containing barrel is upward, so that sand can be conveniently added into the sand containing barrel.

Third, motor B drive rotary drum rotary motion, the orbit groove on the rotary drum drives the push rod up-and-down motion, and under the effect of guide bar, the push rod remains vertical up-and-down motion throughout, and the in-process of push rod up-and-down motion can promote to hold the sand bucket and rock about, falls the different positions of sieve sand net by the sand that falls in holding the sand bucket, improves the efficiency of sieving sand. Meanwhile, the sand containing barrel is beneficial to breaking caked sand grains in the process of shaking back and forth.

And fourthly, the sand containing barrel is fixed with a guide groove in the moving direction of the push rod, the first end of the push rod is placed in the guide groove, the guide groove is arranged to limit the moving direction of the push rod, and the phenomenon that the push rod slides on the outer wall of the sand containing barrel in the up-and-down movement process is prevented.

Drawings

Fig. 1 is a schematic front view of the present invention;

FIG. 2 is an enlarged schematic view of position A;

FIG. 3 is a schematic view in the direction B;

FIG. 4 is a schematic front view of the drum.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples.

As shown in fig. 1 to 4, the present invention includes a support frame 1, in this embodiment, the support frame 1 is a frame structure with a shape of a Chinese character 'men'. The top of support frame 1 articulates downwards has arm-tie 2, and the lower extreme of arm-tie 2 welds fixedly connected with and holds husky bucket 3, holds husky bucket 3's shape for the round platform type to big head end and arm-tie 2 weld fixed connection. Hold the barrel head of husky bucket 3 and offer through-hole 4 that is used for leaking husky, the below of through-hole 4 is welded fixedly connected with layer board 6, pegs graft between layer board 6 and the through-hole and is had shrouding 5 that is used for shutoff through-hole 4.

The lower part of the through hole 4 is provided with a sand screening net 10, and the sand screening net 10 is obliquely welded and fixedly connected to the pillars at the two sides of the support 1 in order to ensure that large sand grains can fall off from the sand screening net in time. Hold husky bucket 3's inside central point and put and be equipped with vertical decurrent (mixing) shaft 7, fixedly connected with spiral ascending helical blade 8 on the (mixing) shaft 7, for the cooperation holds husky bucket 3's shape, improves the efficiency that the stirring was smashed, helical blade 8's upper end blade is great, and the lower extreme blade is less. The upper end of the stirring shaft 7 is fixedly connected with the output shaft of the motor A9, and the stirring force required to be borne by the stirring shaft is not uniform, so the motor A9 is connected with the stirring shaft by a cross universal coupling 18. The casing wall of motor a9 is fixedly connected to the top end beam of support 1.

The side wall of the sand containing barrel 3 is connected with a first end of a push rod 11 which is horizontally arranged, and the first end of the push rod 11 is rotatably connected with a roller 20. The lower part of the push rod 11 is fixedly connected with a vertical downward guide rod 12 in a welding mode, the bottom plate 13 is fixedly connected to the left upright post of the support frame 1, and the guide rod 12 penetrates through a hole formed in the bottom plate 13. The second end of the push rod 11 is driven by a drive means. The driving device comprises a vertically arranged rotary drum 15, a track groove 14 is formed in the side face of the rotary drum 15, and the second end of the push rod 11 is inserted into the track groove 14. In this embodiment, the track groove 14 is formed in the side surface of the rotating drum 15, the first position of the track groove 14 is connected, and the curve shape of the track can be a positive rotation curve. The lower end of the rotary drum 15 is rotatably connected to the bottom plate 13 through a bearing seat, the upper end of the rotary drum is fixedly connected with an output shaft of a motor B17 through a coupling 19, and a casing wall of the motor B17 is fixedly connected to a top end beam of the support frame 1.

The sand containing barrel 3 is fixed with a guide groove 21 in the moving direction of the push rod 11, and a first end roller 20 of the push rod 11 is placed in the guide groove 21.

The operation flow is as follows: firstly add sand to holding sand bucket 3 through forklift or conveyer belt, when the sand caking is more, can insert layer board 6 with shrouding 5 and seal, carry out the stirring of a certain time earlier and smash the processing, starting motor A9 carries out rotatory stirring and smashes. Starting the motor B17 to shake the sand containing barrel 3, then drawing out the closing plate 5, and allowing sand to fall from the through hole 4 to the sand screening net 10 for sand screening treatment.

When the sand added into the sand containing barrel is not agglomerated too much, the sealing plate 5 is not inserted, and the motor A9 and the motor B17 can be started to carry out sand screening treatment in the process of adding the sand.

Claims (9)

1. A sand screening device is characterized in that: the sand-leakage-prevention device comprises a support frame (1), wherein a pulling plate (2) is hinged to the top end of the support frame (1) downwards, a sand-containing barrel (3) is fixedly connected to the lower end of the pulling plate (2), and a through hole (4) for sand leakage is formed in the bottom of the sand-containing barrel (3); a sand screening net (10) is arranged below the through hole (4), and the sand screening net (10) is fixedly connected to the support frame (1).

2. A sand screening device according to claim 1, wherein: the sand bucket (3) is characterized in that a vertically downward stirring shaft (7) is arranged at the center inside the sand bucket (3), a spiral upward helical blade (8) is fixedly connected to the stirring shaft (7), the upper end of the stirring shaft (7) is fixedly connected with an output shaft of a motor A (9), and the shell wall of the motor A (9) is fixedly connected to the top end of the support frame (1).

3. A sand screening device according to claim 1, wherein: the sand containing barrel (3) is in a round table shape, and the large head end of the sand containing barrel (3) is fixedly connected with the pulling plate (2).

4. A sand screening device according to claim 2, wherein: the side wall of the sand containing barrel (3) is connected with a first end of a horizontally arranged push rod (11), a vertically downward guide rod (12) is fixedly connected below the push rod (11), a bottom plate (13) is fixedly connected to the support frame (1), and the guide rod (12) penetrates through a hole formed in the bottom plate (13); the second end of the push rod (11) is driven by a driving device.

5. A sand screening device according to claim 4, wherein: the driving device comprises a rotary drum (15) which is vertically arranged, a track groove (14) is formed in the side face of the rotary drum (15), the second end of the push rod (11) is inserted into the track groove (14), the lower end of the rotary drum (15) is rotatably connected to the bottom plate (13), the upper end of the rotary drum (15) is fixedly connected with an output shaft of a motor B (17), and the shell wall of the motor B (17) is fixedly connected to the top end of the support frame (1).

6. A sand screening device according to claim 4, wherein: the sand containing barrel (3) is fixedly provided with a guide groove (21) in the moving direction of the push rod (11), and the first end of the push rod (11) is placed in the guide groove (21).

7. A sand screening device according to claim 6, wherein: the first end of the push rod (11) is rotatably connected with a roller (20), and the roller (20) is placed in the guide groove (21).

8. A sand screening device according to claim 1, wherein: the lower part of the through hole (4) is fixedly connected with a supporting plate (6), and a sealing plate (5) used for sealing the through hole (4) is inserted between the supporting plate (6) and the through hole.

9. A sand screening device according to claim 1, wherein: the sand screening net (10) is obliquely fixed on the support frame (1).

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