CN215466110U - Grit screening plant is used in road construction - Google Patents

Abstract

The utility model relates to the technical field of road construction, in particular to a sand and stone screening device for road construction, which can improve the sand and stone grading effect and improve the utilization rate of sand and stone by arrangement; the screen comprises a base, a plurality of groups of pillars, a shell, two groups of guide rails, two groups of strip plates and a primary screen box, wherein the bottom end of the base is fixedly connected with the top ends of the pillars; still include the second grade sieve case, tertiary sieve case, three group's row's flitchs, three group's stock guides, the connecting rod, two sets of branch, the fixed plate, including a motor, an end cap, a controller, and a cover plate, the eccentric wheel, the eccentric rod, the movable rod, two sets of oscillation device, the filter box, the fan, strain a section of thick bamboo and two sets of filter screens, second grade sieve bottom of the case end is equipped with four groups of pillars, pillar bottom and one-level sieve top of the case fixed connection, tertiary sieve bottom of the case end is equipped with four groups of pillars, pillar bottom and second grade sieve top of the case fixed connection, it is at one-level sieve case right-hand member to arrange flitch left end fixed mounting respectively, second grade sieve case right-hand member and tertiary sieve case right-hand member, the stock guide right-hand member passes the shell, the stock guide left end is located row flitch below.

Description

Grit screening plant is used in road construction

Technical Field

The utility model relates to the technical field of road construction, in particular to a sand and stone screening device for road construction.

Background

As is well known, a sand screening device for road construction is an auxiliary device for screening sand in the road construction process, and is widely used in the field of road construction; the existing sand and stone screening device for road construction comprises a base, a plurality of groups of supporting columns, a shell, two groups of guide rails, two groups of strip plates and a primary screening box, wherein the bottom end of the base is fixedly connected with the top end of the supporting columns, the bottom end of the shell is fixedly connected with the top end of the base, the top end of the shell is provided with a feeding pipe, the two groups of guide rails are fixedly arranged at the bottom of the shell, the guide rails are provided with chutes, the bottom ends of the strip plates are provided with slide blocks, the slide blocks are positioned in the chutes of the guide rails, the bottom end of the primary screening box is fixedly connected with the top ends of the strip plates, and the left end of the primary screening box is additionally provided with a power device; when the existing gravel screening device for road construction is used, gravel firstly enters a primary screen box through a feeding pipe, a power device is started to drive the primary screen box to shake left and right, and large-particle gravel is shaken out of the primary screen box; present grit screening plant for road construction uses in the discovery, and the grit granule is not of uniform size, and the grading effect of grit is relatively poor.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides the sand and stone screening device for road construction, which can improve the sand and stone grading effect and improve the utilization rate of sand and stone.

The utility model relates to a sand and stone screening device for road construction, which comprises a base, a plurality of groups of pillars, a shell, two groups of guide rails, two groups of strip plates and a primary screen box, wherein the bottom end of the base is fixedly connected with the top ends of the pillars; the device also comprises a second-stage sieve box, a third-stage sieve box, three groups of discharging plates, three groups of guide plates, a connecting rod, two groups of supporting rods, a fixed plate, a motor, an eccentric wheel, an eccentric rod, a movable rod, two groups of oscillating devices, a filter box, a fan, a filter cylinder and two groups of filter screens, wherein four groups of supporting columns are arranged at the bottom end of the second-stage sieve box, the bottom ends of the supporting columns are fixedly connected with the top end of the first-stage sieve box, four groups of supporting columns are arranged at the bottom end of the third-stage sieve box, the bottom end of each supporting column is fixedly connected with the top end of the corresponding second-stage sieve box, the right end of each guide plate penetrates through the shell, the left end of each guide plate is positioned below the corresponding discharging plate, the right end of each connecting rod is fixedly connected with the left end of the corresponding first-stage sieve box, the left end of each connecting rod penetrates through the shell, the bottom end of each supporting column is fixedly connected with the top end of the base, the bottom end of the fixed plate is fixedly connected with the top end of the corresponding supporting column, and the bottom end of the motor is fixedly connected with the top end of the fixed plate, the output and the eccentric wheel of motor are connected, eccentric rod fixed mounting is on the eccentric wheel, movable rod left end and eccentric rod are articulated, movable rod right-hand member and connecting rod left end are articulated, oscillation device top and one-level sieve bottom of the case end fixed connection, the filter box is located the base below, fan left end and filter box right-hand member intercommunication, strain a section of thick bamboo fixed mounting at the filter box middle part, two sets of filter screens are installed in order and are strained inside a section of thick bamboo, the filter box left end is equipped with the dust absorption pipe, the dust absorption pipe passes the base and stretches into to the shell in, the input of dust absorption pipe is equipped with the suction hood.

The sand and stone screening device for road construction further comprises four groups of limiting blocks, wherein the four groups of limiting blocks are fixedly arranged on two sides of the top ends of the two groups of guide rails respectively.

The utility model relates to a sand and stone screening device for road construction, which further comprises a plurality of groups of inclined baffles, wherein the inclined baffles are fixedly arranged at right end outlets of a primary screen box, a secondary screen box and a tertiary screen box respectively.

The utility model relates to a sand and stone screening device for road construction, which further comprises a rotating shaft, two groups of cleaning brushes, a first conical gear, a second conical gear, a movable shaft and a handle, wherein two ends of the rotating shaft are respectively and rotatably connected with a filter screen, the two groups of cleaning brushes are respectively and fixedly connected with two ends of the rotating shaft, the cleaning brushes are in contact with the filter screen, the first conical gear is fixedly arranged in the middle of the rotating shaft, the second conical gear is meshed with the first conical gear, the top end of the second conical gear is fixedly connected with the bottom end of the movable shaft, and the top end of the movable shaft can rotatably penetrate through a filter box and is fixedly connected with the handle.

The utility model relates to a gravel screening device for road construction, which further comprises two groups of partition plates and two groups of cleaning doors, wherein two groups of dust exhaust ports are formed in the bottom end of a filter cylinder, one group of dust exhaust ports are positioned below a cleaning brush, the two groups of partition plates are fixedly arranged below the filter cylinder, and the two groups of cleaning doors are fixedly arranged on the front sides of the two groups of dust exhaust ports.

The utility model relates to a sand and stone screening device for road construction, which further comprises a guide pipe, wherein the guide pipe penetrates through the left wall of the shell and is fixed, and a connecting rod penetrates through the guide pipe.

The utility model relates to a sand and stone screening device for road construction, which further comprises four groups of elastic cushions, wherein the top ends of the elastic cushions are fixedly connected with the bottom ends of pillars.

The utility model relates to a sand and stone screening device for road construction, which further comprises a bolt and a gasket, wherein the bolt penetrates through the bottom end of a motor and a fixing plate and is screwed on the top end of a supporting rod, and the gasket is arranged between the motor and the bolt.

Compared with the prior art, the utility model has the beneficial effects that: firstly, the gravel enters the shell through the inlet pipe and falls into the third-level sieve box, the motor is started, the eccentric wheel and the eccentric rod are driven to rotate by transmission, the movable rod is driven to rotate, the connecting rod and the first-level sieve box are driven to swing left and right simultaneously, the oscillating device is started, the first-level sieve box is vibrated, smaller gravel particles in the third-level sieve box conveniently fall into the second-level sieve box, large gravel particles are shaken out and are discharged through the discharge plate and the guide plate, the mesh of the mesh at the bottom end of the third-level sieve box is larger than the mesh of the mesh at the bottom end of the second-level sieve box, the second-level sieve box is driven to swing, smaller gravel particles in the second-level sieve box fall into the first-level sieve box, larger gravel particles in the second-level sieve box are shaken out and are discharged through the discharge plate and the guide plate, the small gravel particles in the first-level sieve box can be discharged through the discharge plate and the guide plate, through the above arrangement, the effect of grading of the gravel can be improved, improve the utilization ratio of grit, start the fan simultaneously, the grit can be siphoned away by the suction hood shaking the dust that vibrates the in-process and produce, gets into the filter box through the dust absorption pipe to discharge after filtering by the filter screen, can prevent dust polluted environment, improve the degree of environmental protection.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the internal connections of the filter box;

FIG. 3 is a schematic top view of a tertiary screen box connection;

FIG. 4 is a left side view schematic of the eccentric wheel attachment;

FIG. 5 is a left side view schematic of the rail connection;

in the drawings, the reference numbers: 1. a base; 2. a pillar; 3. a housing; 4. a feed pipe; 5. a guide rail; 6. a strip plate; 7. a primary sieve box; 8. a secondary sieve box; 9. a tertiary sieve box; 10. a discharge plate; 11. a material guide plate; 12. a connecting rod; 13. a strut; 14. a fixing plate; 15. a motor; 16. an eccentric wheel; 17. an eccentric rod; 18. a movable rod; 19. an oscillation device; 20. a filter box; 21. a fan; 22. a filter cartridge; 23. filtering with a screen; 24. a dust collection pipe; 25. a dust hood; 26. a limiting block; 27. an inclined baffle plate; 28. a rotating shaft; 29. cleaning a brush; 30. a first bevel gear; 31. a second bevel gear; 32. a movable shaft; 33. a handle; 34. a dust exhaust port; 35. a partition plate; 36. cleaning the door; 37. a guide tube; 38. an elastic pad; 39. a bolt; 40. a gasket.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.

As shown in fig. 1 to 5, the gravel screening device for road construction comprises a base 1, a plurality of groups of pillars 2, a shell 3, two groups of guide rails 5, two groups of laths 6 and a primary screen box 7, wherein the bottom end of the base 1 is fixedly connected with the top ends of the pillars 2, the bottom end of the shell 3 is fixedly connected with the top end of the base 1, the top end of the shell 3 is provided with a feeding pipe 4, the two groups of guide rails 5 are fixedly arranged at the bottom of the shell 3, a sliding groove is formed in each guide rail 5, the bottom end of each lath 6 is provided with a sliding block, the sliding block is positioned in the sliding groove of each guide rail 5, and the bottom end of the primary screen box 7 is fixedly connected with the top end of each lath 6; the device also comprises a second-stage screen box 8, a third-stage screen box 9, three groups of discharging plates 10, three groups of guide plates 11, a connecting rod 12, two groups of supporting rods 13, a fixed plate 14, a motor 15, an eccentric wheel 16, an eccentric rod 17, a movable rod 18, two groups of oscillation devices 19, a filter box 20, a fan 21, a filter cylinder 22 and two groups of filter screens 23, wherein the bottom end of the second-stage screen box 8 is provided with four groups of supporting columns, the bottom ends of the supporting columns are fixedly connected with the top end of the first-stage screen box 7, the bottom end of the supporting columns are fixedly connected with the top end of the second-stage screen box 8, the left end of the discharging plate 10 is respectively fixedly arranged at the right end of the first-stage screen box 7, the right end of the second-stage screen box 8 and the right end of the third-stage screen box 9, the right end of the guide plate 11 penetrates through the shell 3, the left end of the guide plate 11 is positioned below the discharging plate 10, the right end of the connecting rod 12 is fixedly connected with the left end of the first-stage screen box 7, the left end of the connecting rod 12 penetrates through the shell 3, the bottom end of the supporting rod 13 is fixedly connected with the top end of the base 1, the bottom end of a fixed plate 14 is fixedly connected with the top end of a support rod 13, the bottom end of a motor 15 is fixedly connected with the top end of the fixed plate 14, the output end of the motor 15 is connected with an eccentric wheel 16, the eccentric rod 17 is fixedly installed on the eccentric wheel 16, the left end of a movable rod 18 is hinged with the eccentric rod 17, the right end of the movable rod 18 is hinged with the left end of a connecting rod 12, the top end of an oscillating device 19 is fixedly connected with the bottom end of a primary screen box 7, a filter box 20 is positioned below a base 1, the left end of a fan 21 is communicated with the right end of the filter box 20, a filter box 22 is fixedly installed in the middle of the filter box 20, two groups of filter screens 23 are sequentially installed inside the filter box 22, the left end of the filter box 20 is provided with a dust suction pipe 24, the dust suction pipe 24 penetrates through the base 1 and extends into a shell 3, and the input end of the dust suction pipe 24 is provided with a dust hood 25; firstly, gravel enters the shell 3 through the inlet pipe 4 and falls into the three-stage sieve box 9, the motor 15 is started, the eccentric wheel 16 and the eccentric rod 17 are driven to rotate by transmission, the movable rod 18 is driven to rotate, the connecting rod 12 and the one-stage sieve box 7 are driven to shake left and right, the oscillating device 19 is started to oscillate the one-stage sieve box 7, smaller gravel particles in the three-stage sieve box 9 can fall into the two-stage sieve box 8 conveniently, large particles are shaken out and discharged through the discharge plate 10 and the guide plate 11, the screen meshes at the bottom end of the three-stage sieve box 9 are larger than those at the bottom end of the two-stage sieve box 8, the two-stage sieve box 8 is driven to shake, smaller gravel particles in the two-stage sieve box 8 fall into the one-stage sieve box 7, larger gravel particles in the two-stage sieve box 8 are shaken out and discharged through the discharge plate 10 and the guide plate 11, small gravel particles in the one-stage sieve box 7 can be discharged through the discharge plate 10 and the guide plate 11, through above setting, can improve the hierarchical effect of grit, improve the utilization ratio of grit, start fan 21 simultaneously, the grit can be siphoned away by suction hood 25 shaking the dust that vibrates the in-process and produce, gets into filter box 20 through dust absorption pipe 24 to discharge after filtering by filter screen 23, can prevent dust polluted environment, improve the environmental protection degree.

The sand and stone screening device for road construction further comprises four groups of limiting blocks 26, wherein the four groups of limiting blocks 26 are fixedly arranged on two sides of the top ends of the two groups of guide rails 5 respectively; through setting up stopper 26, break away from guide rail 5 when preventing that one-level sieve case 7 from rocking, improve the stability of one-level sieve case 7.

The sand and stone screening device for road construction further comprises a plurality of groups of inclined baffles 27, wherein the plurality of groups of inclined baffles 27 are fixedly arranged at right end outlets of the primary screen box 7, the secondary screen box 8 and the tertiary screen box 9 respectively; through setting up, the grit of being convenient for is discharged smoothly, improves the convenience.

The utility model relates to a sand screening device for road construction, which further comprises a rotating shaft 28, two groups of cleaning brushes 29, a first bevel gear 30, a second bevel gear 31, a movable shaft 32 and a handle 33, wherein two ends of the rotating shaft 28 are respectively and rotatably connected with a filter screen 23, the two groups of cleaning brushes 29 are respectively and fixedly connected with two ends of the rotating shaft 28, the cleaning brushes 29 are contacted with the filter screen 23, the first bevel gear 30 is fixedly arranged in the middle of the rotating shaft 28, the second bevel gear 31 is meshed with the first bevel gear 30, the top end of the second bevel gear 31 is fixedly connected with the bottom end of the movable shaft 32, and the top end of the movable shaft 32 can rotatably penetrate through a filter box 20 and is fixedly connected with the handle 33; through setting up, wave handle 33, drive loose axle 32 and rotate, drive first conical gear 30 and pivot 28 and rotate, make cleaning brush 29 clear up the dust of adhering to on filter screen 23, prevent that filter screen 23 from blockking up, improve the filter effect.

The sand and stone screening device for road construction further comprises two groups of partition plates 35 and two groups of cleaning doors 36, wherein two groups of dust discharge ports 34 are formed in the bottom end of the filter cylinder 22, one group of dust discharge ports 34 are located below the cleaning brush 29, the two groups of partition plates 35 are fixedly installed below the filter cylinder 22, and the two groups of cleaning doors 36 are fixedly installed on the front sides of the two groups of dust discharge ports 34; through setting up, the dust that is cleared up by cleaning brush 29 falls into the bottom of filter box 20 through dust exhaust 34, and the dust that simultaneously gets into through dust absorption pipe 24 also falls into the bottom of filter box 20 from dust exhaust 34, opens cleaning door 36, can be with the dust clean up, prevents that the dust from piling up.

The sand and stone screening device for road construction further comprises a guide pipe 37, wherein the guide pipe 37 penetrates through the left wall of the shell 3 and is fixed, and the connecting rod 12 penetrates through the guide pipe 37; through setting up, the effect of direction can be played to connecting rod 12 to stand 37, improves the stability of connecting rod 12.

The sand and stone screening device for road construction further comprises four groups of elastic cushions 38, wherein the top ends of the elastic cushions 38 are fixedly connected with the bottom ends of the pillars 2; through setting up, the area of contact of multiplicable pillar 2 and ground slows down vibrations simultaneously, improves stability.

The sand and stone screening device for road construction further comprises a bolt 39 and a washer 40, wherein the bolt 39 penetrates through the bottom end of the motor 15 and the fixing plate 14 and is screwed on the top end of the supporting rod 13, and the washer 40 is installed between the motor 15 and the bolt 39; through setting up, can strengthen the connection of motor 15 and branch 13, improve motor 15's stability.

The utility model relates to a sand and stone screening device for road construction, which is characterized in that when in operation, firstly sand and stone enter a shell through a feeding pipe and fall into a tertiary screen box, a motor is started to drive an eccentric wheel and an eccentric rod to rotate, a movable rod is driven to rotate, a connecting rod and the primary screen box are driven to shake left and right, an oscillating device is started to oscillate the primary screen box, smaller sand and stone particles in the tertiary screen box fall into a secondary screen box, large sand and stone particles are shaken out and discharged through a discharging plate and a material guide plate, the mesh of a screen mesh at the bottom end of the tertiary screen box is larger than that of the screen mesh at the bottom end of the secondary screen box, the secondary screen box is driven to shake, smaller sand and stone particles in the secondary screen box fall into the primary screen box, larger sand and stone particles in the secondary screen box are shaken out and discharged through the discharging plate and the material guide plate, and the small sand and stone particles in the primary screen box are discharged through the discharging plate and the material guide plate, start the fan simultaneously, the grit is shaken the dust that vibrates the in-process and produce and is siphoned away by the suction hood, in getting into the filter box through the dust absorption pipe, filter the back discharge by the filter screen can, if need clear up the filter box, wave the handle so, drive the loose axle and rotate, drive first conical gear and pivot rotation simultaneously, make the cleaning brush clear up the dust of attaching to on the filter screen, and fall into the filter box bottom through the dust exhaust mouth, open the clearance door at last, with accumulational dust clean up can.

According to the sand and stone screening device for road construction, the installation mode, the connection mode or the arrangement mode are common mechanical modes, and the sand and stone screening device can be implemented as long as the beneficial effects are achieved; the motor, the oscillating device and the fan of the sand and stone screening device for road construction are purchased from the market, and technicians in the industry only need to install and operate the motor, the oscillating device and the fan according to the attached operating instructions.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims (8)

1. A gravel screening device for road construction comprises a base (1), a plurality of groups of pillars (2), a shell (3), two groups of guide rails (5), two groups of strip plates (6) and a primary screen box (7), wherein the bottom end of the base (1) is fixedly connected with the top ends of the pillars (2), the bottom end of the shell (3) is fixedly connected with the top end of the base (1), a feeding pipe (4) is arranged at the top end of the shell (3), the two groups of guide rails (5) are fixedly installed at the bottom of the shell (3), sliding grooves are formed in the guide rails (5), sliding blocks are arranged at the bottom ends of the strip plates (6) and located in the sliding grooves of the guide rails (5), and the bottom end of the primary screen box (7) is fixedly connected with the top ends of the strip plates (6); it is characterized by also comprising a second-stage sieve box (8), a third-stage sieve box (9), three groups of discharging plates (10), three groups of guide plates (11), a connecting rod (12), two groups of supporting rods (13), a fixed plate (14), a motor (15), an eccentric wheel (16), an eccentric rod (17), a movable rod (18), two groups of oscillating devices (19), a filter box (20), a fan (21), a filter cartridge (22) and two groups of filter screens (23), wherein four groups of supporting columns are arranged at the bottom end of the second-stage sieve box (8), the bottom ends of the supporting columns are fixedly connected with the top end of the first-stage sieve box (7), four groups of supporting columns are arranged at the bottom end of the third-stage sieve box (9), the bottom ends of the supporting columns are fixedly connected with the top end of the second-stage sieve box (8), the left end of the discharging plates (10) is respectively and fixedly arranged at the right end of the first-stage sieve box (7), the right end of the second-stage sieve box (8) and the third-stage sieve box (9), the right end of the guide plates (11) passes through the shell (3), the left end of the material guide plate (11) is positioned below the material discharge plate (10), the right end of the connecting rod (12) is fixedly connected with the left end of the first-level screen box (7), the left end of the connecting rod (12) penetrates through the shell (3), the bottom end of the supporting rod (13) is fixedly connected with the top end of the base (1), the bottom end of the fixed plate (14) is fixedly connected with the top end of the supporting rod (13), the bottom end of the motor (15) is fixedly connected with the top end of the fixed plate (14), the output end of the motor (15) is connected with the eccentric wheel (16), the eccentric rod (17) is fixedly arranged on the eccentric wheel (16), the left end of the movable rod (18) is hinged with the eccentric rod (17), the right end of the movable rod (18) is hinged with the left end of the connecting rod (12), the top end of the oscillating device (19) is fixedly connected with the bottom end of the first-level screen box (7), the filter box (20) is positioned below the base (1), the left end of the fan (21) is communicated with the right end of the filter box (20), and the filter cartridge (22) is fixedly arranged in the middle of the filter box (20), two groups of filter screens (23) are sequentially arranged in the filter cylinder (22), the left end of the filter box (20) is provided with a dust suction pipe (24), the dust suction pipe (24) penetrates through the base (1) and extends into the shell (3), and the input end of the dust suction pipe (24) is provided with a dust suction cover (25).

2. A sand and stone screening device for road construction as claimed in claim 1, further comprising four sets of limiting blocks (26), wherein the four sets of limiting blocks (26) are respectively fixedly installed on two sides of the top end of the two sets of guide rails (5).

3. A sand and stone screening device for road construction as claimed in claim 2, further comprising a plurality of sets of inclined baffles (27), wherein the plurality of sets of inclined baffles (27) are fixedly installed at right end outlets of the primary screen box (7), the secondary screen box (8) and the tertiary screen box (9), respectively.

4. A road construction sand and stone screening device, as claimed in claim 3, further comprising a rotating shaft (28), two sets of cleaning brushes (29), a first bevel gear (30), a second bevel gear (31), a movable shaft (32) and a handle (33), wherein two ends of the rotating shaft (28) are respectively rotatably connected with the filter screen (23), two sets of cleaning brushes (29) are respectively fixedly connected with two ends of the rotating shaft (28), and the cleaning brushes (29) are in contact with the filter screen (23), the first bevel gear (30) is fixedly installed in the middle of the rotating shaft (28), the second bevel gear (31) is engaged with the first bevel gear (30), the top end of the second bevel gear (31) is fixedly connected with the bottom end of the movable shaft (32), and the top end of the movable shaft (32) can rotatably penetrate through the filter box (20) and is fixedly connected with the handle (33).

5. A sand and stone screening device for road construction according to claim 4, characterized by further comprising two sets of partition plates (35) and two sets of cleaning doors (36), wherein the bottom end of the filter cylinder (22) is provided with two sets of dust discharging ports (34), one set of dust discharging ports (34) is positioned below the cleaning brush (29), the two sets of partition plates (35) are fixedly arranged below the filter cylinder (22), and the two sets of cleaning doors (36) are fixedly arranged at the front sides of the two sets of dust discharging ports (34).

6. A sand and stone screening apparatus for road construction according to claim 5, further comprising a guide pipe (37), the guide pipe (37) passing through the left wall of the housing (3) and being fixed, the connecting rod (12) passing through the guide pipe (37).

7. A sand and stone screening device for road construction, as claimed in claim 6, further comprising four sets of resilient pads (38), the top ends of the resilient pads (38) being fixedly connected to the bottom ends of the pillars (2).

8. A road construction sand and stone screening device as claimed in claim 7, characterized in that, it also includes bolt (39) and washer (40), the bolt (39) passes through the bottom of the motor (15) and the fixing plate (14) and is screwed on the top of the supporting rod (13), the washer (40) is installed between the motor (15) and the bolt (39).

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