CN115569717A - Road and bridge construction crushing and screening machine with dust treatment function - Google Patents

Abstract

The invention discloses a road and bridge construction crushing and screening machine with a dust treatment function, which comprises: the box, the feeding funnel, the surrounding edge, the fan, first connecting pipe, the second connecting pipe, the negative pressure pipe, the suction nozzle, a fixed base, the crushing roller, the gear, first motor, the sprocket, the chain, the sleeve pipe, the guide bar, a sieve section of thick bamboo, first screen cloth, the swash plate, the guide plate, the slide, the connecting plate, the slot hole, the opening, the second motor, the apparatus further comprises a rotating shaft, the band pulley, the belt, the cam, the carousel, the connecting rod, the fixed plate, the sieve, a spring, the second screen cloth, the extension board, the baffle, the feed back pipe, the third motor, the spiral roller, the feed inlet, a housing, the fourth motor, the blade, the riser, the fifth motor, the conveying roller, first conveyer belt and second conveyer belt. The material screening device has the advantages that the box body is adopted for screening materials, multi-stage screening is realized in the box body, rapid screening of the materials is guaranteed through screen shaking, air circulation between the feeding hopper and the interior of the box body can be realized, and the service performance of the crushing and screening machine is improved.

Description

Road and bridge construction crushing and screening machine with dust treatment function

Technical Field

The invention relates to a road and bridge construction crushing and screening machine with a dust treatment function, in particular to a road and bridge construction crushing and screening machine with a dust treatment function, and belongs to the technical field of road and bridge construction application.

Background

The road and bridge engineering originally refers to the work of reconnaissance, design, construction, maintenance, management and the like of roads and bridges, and can be divided into the following parts according to the structure: the engineering of road bed, road surface, bridge, culvert, tunnel, drainage, protection, afforestation, traffic engineering, electromechanics divide into according to the unit engineering of standard: roadbed engineering, road surface engineering, bridge engineering, interchange engineering, tunnel engineering, environmental protection engineering, traffic safety facilities, electromechanical engineering, building construction engineering in road and bridge engineering, such as toll stations, service areas and the like, and road and bridge engineering also includes urban rail engineering and railway engineering.

Can handle original material among the road bridge construction engineering, make it break into less granule recycle once more, adopt crushing screening machine to carry out the breakage of material and screening processing usually, crushing screening machine is one kind and can be with the equipment of the rock breakage that obtains of exploitation.

In patent document "CN202020602743.7 a rubble crushing and screening machine", its motor and pivot and sieve section of thick bamboo parallel arrangement, and there are a plurality of belts on the motor, when drum-type screening machine begins to work, the motor begins to work simultaneously, the pivot begins to rotate, drive a plurality of belts above the pivot and fly fast and rotate and pat on the surface of a sieve section of thick bamboo, the problem of card stone piece on the sieve section of thick bamboo has been solved, but the screening effect is poor, there may be the material too late to screen and lead to its screening effect to reduce when carrying out the material faster or more transport, and in the construction material crushing process, tiny particulate matter blocks up the screen cloth easily, it is inconvenient for follow-up clearance, also can lead to the screening effect of screen cloth to reduce carrying out the screening in-process, the material after screening also is difficult to carry out effective classified transport, bring inconvenience for follow-up processing, the dust that the crushing and screening in-process produced also is difficult to effective processing, reduce air quality. At present, a road and bridge construction crushing and screening machine which is reasonable and reliable in structure, has a high-efficiency crushing and screening function, can realize material conveying and has a dust treatment function does not exist.

Disclosure of Invention

In order to solve the defects of the prior art, the box body is adopted for screening the materials, the crushing treatment can be carried out at the feeding hopper during screening, the multistage screening treatment of the materials is realized through the screen drum and the screen in the box body, the materials can be subjected to multistage separation to improve the screening effect, and the subsequent treatment of the crushed materials is facilitated.

More in order to solve the problem among the prior art: in the screening process, the shaking of the screen cloth can be realized through the movement of the screen drum and the screen cloth, the condition that the material is conveyed too fast or is excessively kept in a high-efficiency screening state can be guaranteed, the material is guaranteed to pass through and screen quickly, the problem of blockage of the screen cloth is prevented simultaneously, and the screening efficiency is improved.

Further in order to solve the problems in the prior art: in screening process, can realize feeding funnel and the inside circulation of air of box through negative pressure pipe and connecting pipe, can avoid crushing and screening in-process dust excessive, be favorable to improving the air quality, can carry respectively to the material of multistage screening simultaneously, can realize circulating transport and crushing treatment once more to the material that does not screen totally, be favorable to the material crushing completely, improve the performance of crushing and screening machine.

In order to solve the defects in the prior art, the invention provides a road and bridge construction crushing and screening machine with a dust treatment function, which comprises: the device comprises a box body, a feeding hopper, a screen drum, a screen plate and a rotating shaft;

the dust collector comprises a box body, a fan, a first connecting pipe, a second connecting pipe, a dust processor, a negative pressure pipe and a plurality of suction nozzles, wherein the top of the box body is fixedly provided with the feeding hopper, the top of the feeding hopper is provided with an inward concave surrounding edge, the top of the box body is fixedly provided with the fan, the fan is respectively communicated with the first connecting pipe and the second connecting pipe, the fan is communicated with the external dust processor, the first connecting pipe and the second connecting pipe are respectively communicated with the feeding hopper and the top of the box body in a penetrating manner, the top end of the feeding hopper is fixedly provided with the negative pressure pipe, and the surface of the negative pressure pipe is provided with the plurality of suction nozzles;

a screen cylinder and a screen plate are respectively arranged in the box body, a first screen mesh and a second screen mesh are respectively and fixedly arranged on the surfaces of the screen cylinder and the screen plate, an inclined plate is fixedly arranged in the screen cylinder, an opening is formed at the joint of the bottom end of the inclined plate and the screen cylinder, a guide plate positioned below the opening and sliding plates positioned on two sides of the screen cylinder are fixedly arranged on the outer wall of the screen cylinder, and the sliding plates are fixedly connected through a connecting plate;

the cross section of the screen drum is of an inverted isosceles trapezoid structure, the screen drum is connected with the inner wall of the box body in a sliding mode, a rotating shaft is arranged between the screen drum and the screen plate, the bottom end of the screen plate is connected with the box body in a rotating mode, the two ends of the rotating shaft are fixedly connected with the cam and the rotating disc, the cam is in contact with the surface of the screen plate, the edge of the cam is connected with the connecting rod in a rotating mode, and the connecting rod is connected with the middle of the connecting plate in a rotating mode.

Further, the inside fixed mounting in feeding hopper bottom has the fixing base, the inside and two crushing rollers of feeding hopper rotate to be connected, two inside the equal symmetric distribution of crushing roller to the fixing base, fixing base and feeding hopper bottom all communicate with the box, crushing roller one end fixed mounting has intermeshing's gear, box top fixed mounting has first motor, first motor output and the crushing roller other end all with sprocket fixed connection, connect through chain drive between the sprocket.

Further, the feeding hopper is located and is equipped with the space so that the material stops above the fixing base, feeding hopper edge fixedly connected with surrounding edge, the surrounding edge below is equipped with the negative pressure pipe that is located the feeding hopper inner wall, negative pressure pipe and first connecting pipe fixed connection.

Further, box top one side fixed mounting has two sleeves, every the sheathed tube is inside all to run through with the guide bar and peg graft, the quantity of guide bar is four, four the guide bar is located sieve section of thick bamboo edge respectively all around, wherein two the guide bar runs through with box top opposite side and pegs graft so that the stable removal of a sieve section of thick bamboo.

Further, the opening has been seted up to the box outer wall, the inside and guide plate sliding connection of opening, the guide plate cross-section is the V-arrangement structure, just guide plate and swash plate edge fixed connection, four slot holes have been seted up to the box outer wall, per two all be equipped with the opening between the slot hole, every the slot hole is inside all with slide sliding connection, the slide cross-section is T shape structure so that the stable removal of slide.

Further, bottom half fixed mounting has the second motor, second motor output and pivot one end all with band pulley fixed connection, connect through belt drive between the band pulley, the pivot both ends all extend to the box outside, the band pulley be located the carousel with between the box.

Further, box inner wall fixed mounting has the fixed plate, the fixed plate slope distributes to a sieve section of thick bamboo one side below, fixed plate and sieve top respectively with spring both ends fixed connection, the sieve is the column structure of buckling, the sieve department of buckling fixedly connected with extends the board, bottom half fixed mounting has the baffle, the baffle is located sieve one side and corresponds the setting in extending the board below, just the sieve top corresponds the setting and is in the fixed plate below.

Further, box one side fixed mounting has the feed back pipe, feed back pipe and box bottom communicate each other, feed back pipe and box intercommunication department correspond and set up in baffle one side, feed back pipe top fixed mounting has the third motor, third motor output and spiral roller fixed connection, the spiral roller rotates with feed back pipe inside to be connected, feed back pipe top is passed through feed inlet and feeding hopper outer wall fixed connection, feed back pipe top and feed inlet intercommunication, feed inlet and box top through connection, just the feed inlet corresponds the setting in a sieve section of thick bamboo top.

Further, feed inlet top fixed mounting has the casing, casing and feeding funnel outer wall fixed connection, casing top fixed mounting has the fourth motor, fourth motor output and blade fixed connection, the blade is located the feed inlet top.

Further, box one side is equipped with a plurality of riser, the riser is located the box homonymy with the guide plate, one of them riser fixed mounting has a fifth motor, fifth motor output and conveying roller fixed connection, the transmission is connected with first conveyer belt and second conveyer belt respectively between the conveying roller, second conveyer belt and first conveyer belt are located the box inside and outside both sides respectively, the conveying roller rotates with the box bottom and is connected, the second conveyer belt corresponds the setting in the sieve below, just first conveyer belt corresponds the setting in the guide plate below.

The invention has the advantages that: the utility model provides a road bridge construction crushing screening machine that rational in infrastructure is reliable and have high-efficient crushing screening function and can realize that the material carries has the dust processing function, it adopts the box to carry out the screening of material, can be through carrying out crushing treatment in feeding hopper department when screening, and realize the multistage screening treatment of material through a sieve section of thick bamboo and screen cloth inside the box, can carry out multistage separation to the material in order to improve the screening effect, make things convenient for the subsequent processing of broken material, in carrying out the screening process, can realize the shake of screen cloth through the removal of a sieve section of thick bamboo and screen cloth, can guarantee that the material carries at the excessive speed or still can keep high-efficient screening state when too much, guarantee the quick pass through and the screening of material, prevent simultaneously that the screen cloth from appearing the jam problem, be favorable to improving screening efficiency, in carrying out the screening process, can realize feeding hopper and the inside circulation of box through negative pressure pipe and connecting pipe, can avoid crushing and screening in-process dust excessive, be favorable to improving air quality, can carry respectively the material of multistage screening simultaneously, can realize the circulation transport and crushing treatment once more, be favorable to the broken material complete crushing treatment, be favorable to broken material, improve the broken screening machine's performance.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention and to enable other features, objects and advantages of the invention to be more fully apparent. The drawings and their description illustrate the invention and do not limit it. In the drawings:

fig. 1 is a schematic structural view of a road and bridge construction crushing and screening machine with a dust treatment function according to an embodiment of the present invention;

FIG. 2 is a schematic view of a first perspective structure of the embodiment shown in FIG. 1;

FIG. 3 is a schematic view of an external front view structure of the embodiment shown in FIG. 2;

FIG. 4 is a schematic diagram of the internal side view of the embodiment of FIG. 2;

FIG. 5 is a schematic top view of the screen cylinder of the embodiment of FIG. 2;

FIG. 6 is a schematic top view of the screen deck of the embodiment of FIG. 2;

FIG. 7 is a schematic perspective view of the screen cylinder in the embodiment of FIG. 2;

FIG. 8 is a schematic perspective view of the inclined plate in the embodiment of FIG. 2;

FIG. 9 is a schematic perspective view of the embodiment shown in FIG. 2, in the position of the screen deck;

fig. 10 is a schematic top view of the embodiment shown in fig. 2.

The meaning of the reference symbols in the figures:

1. the device comprises a box body, 2, a feeding hopper, 3, a surrounding edge, 4, a fan, 5, a first connecting pipe, 6, a second connecting pipe, 7, a negative pressure pipe, 8, a suction nozzle, 9, a fixed seat, 10, a crushing roller, 11, a gear, 12, a first motor, 13, a chain wheel, 14, a chain, 15, a sleeve, 16, a guide rod, 17, a screen cylinder, 18, a first screen, 19, an inclined plate, 20, a guide plate, 21, a sliding plate, 22, a connecting plate, 23, a long hole, 24, an opening, 25, a second motor, 26, a rotating shaft, 27, a belt wheel, 28, a belt, 29, a cam, 30, a rotating disc, 31, a connecting rod, 32, a fixed plate, 33, a screen plate, 34, a spring, 35, a second screen, 36, an extension plate, 37, a baffle, 38, a return pipe, 39, a third motor, 40, a spiral roller, 41, a feeding inlet, 42, a shell, 43, a fourth motor, 44, a blade, 45, a vertical plate, 46, a fifth motor, 47, a fifth motor, a first conveying belt, 48, a second conveying roller 49 and a second conveying belt.

Detailed Description

In order to make those skilled in the art better understand the technical solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, shall fall within the protection scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged as appropriate in order to facilitate the embodiments of the invention described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "center", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the invention and its embodiments and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the present invention can be understood by those skilled in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Referring to fig. 1 to 10, a crushing and screening machine for road and bridge construction having a dust treatment function includes: the device comprises a box body 1, a feeding hopper 2, a screen drum 17, a screen plate 33 and a rotating shaft 26.

Referring to fig. 1 to 10, as a preferred scheme, wherein a feeding hopper 2 is fixedly mounted at the top of a box body 1, an inner concave surrounding edge 3 is arranged at the top of the feeding hopper 2, a fan 4 is fixedly mounted at the top of the box body 1, the fan 4 is respectively communicated with a first connecting pipe 5 and a second connecting pipe 6, the fan 4 is communicated with an external dust processor, the first connecting pipe 5 and the second connecting pipe 6 are respectively connected with the feeding hopper 2 and the top of the box body 1 in a penetrating manner, a negative pressure pipe 7 is fixedly mounted at the top end of the feeding hopper 2, a plurality of suction nozzles 8 are arranged on the surface of the negative pressure pipe 7, and the surrounding edge 3 is used for protecting the negative pressure pipe 7 and absorbing dust raised from the feeding hopper 2.

Referring to fig. 2, 4 to 9, as a specific scheme, a screen drum 17 and a screen plate 33 are respectively arranged inside the box body 1, a first screen 18 and a second screen 35 are respectively fixedly arranged on the surfaces of the screen drum 17 and the screen plate 33, an inclined plate 19 is fixedly arranged inside the screen drum 17, an opening 24 is arranged at the joint of the bottom end of the inclined plate 19 and the screen drum 17, a guide plate 20 positioned below the opening 24 and sliding plates 21 positioned at two sides of the screen drum 17 are fixedly arranged on the outer wall of the screen drum 17, and the sliding plates 21 are fixedly connected through a connecting plate 22.

Referring to fig. 2, 4 to 5 and 7 to 10, as a specific scheme, the cross section of the screen drum 17 is an inverted isosceles trapezoid structure, the screen drum 17 is slidably connected with the inner wall of the box 1, a rotating shaft 26 is arranged between the screen drum 17 and the screen plate 33, the bottom end of the screen plate 33 is rotatably connected with the box 1, two ends of the rotating shaft 26 are fixedly connected with a cam 29 and a rotating disc 30, the cam 29 contacts with the surface of the screen plate 33, the edge of the cam 29 is rotatably connected with a connecting rod 31, and the connecting rod 31 is rotatably connected with the middle of the connecting plate 22.

Referring to fig. 2 and 4, by adopting such a scheme, a fixed seat 9 is fixedly installed inside the bottom end of the feeding hopper 2, the inside of the feeding hopper 2 is rotatably connected with two crushing rollers 10, the two crushing rollers 10 are symmetrically distributed inside the fixed seat 9, the bottoms of the fixed seat 9 and the feeding hopper 2 are both communicated with the box body 1, one end of each crushing roller 10 is fixedly installed with a gear 11 which is meshed with each other, the top of the box body 1 is fixedly installed with a first motor 12, the output end of the first motor 12 and the other end of each crushing roller 10 are fixedly connected with a chain wheel 13, and the chain wheels 13 are in transmission connection through a chain 14.

Referring to fig. 1 to 4, as an expanded scheme, the feeding hopper 2 is located above the fixing seat 9 and is provided with a space so as to facilitate material stop, the edge of the feeding hopper 2 is fixedly connected with a surrounding edge 3, a negative pressure pipe 7 located on the inner wall of the feeding hopper 2 is arranged below the surrounding edge 3, and the negative pressure pipe 7 is fixedly connected with the first connecting pipe 5.

Referring to fig. 1 to 3, as an expansion scheme, two sleeves 15 are fixedly mounted on one side of the top of the box body 1, each sleeve 15 is internally inserted into a guide rod 16 in a penetrating manner, the number of the guide rods 16 is four, the four guide rods 16 are respectively located around the edge of a screen drum 17, and the two guide rods 16 are inserted into the other side of the top of the box body 1 in a penetrating manner so as to facilitate stable movement of the screen drum 17.

Referring to fig. 1 to 4 and 7, as a specific scheme, an opening 24 is formed in an outer wall of the box body 1, the inside of the opening 24 is slidably connected with the guide plate 20, a cross section of the guide plate 20 is of a V-shaped structure, the guide plate 20 is fixedly connected with an edge of the inclined plate 19, four long holes 23 are formed in the outer wall of the box body 1, an opening 24 is formed between every two long holes 23, the inside of each long hole 23 is slidably connected with the sliding plate 21, and the cross section of the sliding plate 21 is of a T-shaped structure so as to facilitate stable movement of the sliding plate 21.

Referring to fig. 4, by adopting such a scheme, a second motor 25 is fixedly installed at the bottom of the box body 1, an output end of the second motor 25 and one end of a rotating shaft 26 are both fixedly connected with belt wheels 27, the belt wheels 27 are in transmission connection through a belt 28, both ends of the rotating shaft 26 extend to the outside of the box body 1, and the belt wheels 27 are located between the turntable 30 and the box body 1.

Referring to fig. 2, fig. 6 and fig. 9, as a concrete scheme, box 1 inner wall fixed mounting has fixed plate 32, fixed plate 32 slope distributes to a sieve section of thick bamboo 17 one side below, fixed plate 32 and sieve 33 top respectively with spring 34 both ends fixed connection, sieve 33 is the column structure of buckling, the fixedly connected with extension plate 36 of the department of buckling of sieve 33, box 1 bottom fixed mounting has baffle 37, baffle 37 is located sieve 33 one side and corresponds the setting in extension plate 36 below, just sieve 33 top corresponds the setting in fixed plate 32 below.

Referring to fig. 1 to 3, as a specific scheme, a feed back pipe 38 is fixedly mounted on one side of the box body 1, the feed back pipe 38 is communicated with the bottom end of the box body 1, the feed back pipe 38 is correspondingly arranged on one side of the baffle 37 at the communication position of the box body 1, a third motor 39 is fixedly mounted on the top end of the feed back pipe 38, the output end of the third motor 39 is fixedly connected with a spiral roller 40, the spiral roller 40 is rotatably connected with the inside of the feed back pipe 38, the top of the feed back pipe 38 is fixedly connected with the outer wall of the feeding hopper 2 through a feed inlet 41, the top of the feed back pipe 38 is communicated with the feed inlet 41, the feed inlet 41 is connected with the top of the box body 1 in a penetrating manner, and the feed inlet 41 is correspondingly arranged above the screen drum 17.

Referring to fig. 1 to 2, as an expansion scheme, a shell 42 is fixedly installed at the top of the feeding port 41, the shell 42 is fixedly connected with the outer wall of the feeding hopper 2, a fourth motor 43 is fixedly installed at the top of the shell 42, the output end of the fourth motor 43 is fixedly connected with a blade 44, and the blade 44 is located above the feeding port 41.

Referring to fig. 1 to 4, as a specific scheme, a plurality of vertical plates 45 are arranged on one side of the box body 1, the vertical plates 45 and the guide plate 20 are located on the same side of the box body 1, one of the vertical plates 45 is fixedly provided with a fifth motor 46, an output end of the fifth motor 46 is fixedly connected with conveying rollers 47, a first conveying belt 48 and a second conveying belt 49 are respectively connected between the conveying rollers 47 in a transmission manner, the second conveying belt 49 and the first conveying belt 48 are respectively located on the inner side and the outer side of the box body 1, the conveying rollers 47 are rotatably connected with the bottom end of the box body 1, the second conveying belt 49 is correspondingly arranged below the sieve plate 33, and the first conveying belt 48 is correspondingly arranged below the guide plate 20.

According to the technical scheme, the whole road and bridge construction crushing and screening machine with the dust treatment function adopts the feeding hopper 2 to input materials, after the materials enter the feeding hopper 2, the first motor 12 drives the crushing roller 10 to rotate inside the fixed seat 9 through the transmission of the chain wheel 13 and the chain 14, the fixed seat 9 has a guiding function, the crushed materials enter the box body 1, the first screen 18 above the screen cylinder 17 is used for primary filtering of the materials, the materials which reach the crushing standard fall inside the screen cylinder 17, the materials which reach the crushing standard are discharged from the guide plate on one side through the guiding of the inclined plate 19 and fall onto the surface of the first conveying belt 48, the materials which are not sieved fall onto the screen plate 33, the fixed plate 32 is arranged to prevent the materials from being discharged from the screen plate 33 and the fixed plate 32 and filter the materials again through the second screen 35, at the moment, the filtered materials fall onto the surface of the second conveying belt 49, the conveying roller 47 is driven to rotate inside the vertical plate 45 and the box body 1 through the fifth motor 46, and further, the synchronous conveying of the first conveying belt 48 and the second conveying belt 35 is driven by the multi-stage materials to finish the synchronous conveying of the multi-stage conveying belt 49.

When screening, the belt wheel 27 is driven to rotate by the second motor 25, the rotating shaft 26 is driven to synchronously rotate by the transmission of the belt wheel 27 and the belt 28, the rotating shaft 26 drives the rotating disc 30 to rotate when rotating, the rotating disc 30 pushes the connecting rod 31 to swing up and down, so as to drive the sliding plate 21 to vertically move in the long hole 23, the sliding plate 21 drives the screen drum 17 to vertically move in the box body 1 to realize the shaking of the first screen 18, the screen drum 17 drives the guide plate 20 to slide in the opening 24 to realize the stable movement of the screen drum 17, meanwhile, the screen drum 17 drives the guide rod 16 to respectively move in the top of the box body 1 and the inside of the sleeve 15, and the stable vertical movement of the screen drum 17 is realized.

The rotating shaft 26 simultaneously drives the cam 29 to rotate, the tip end of the cam 29 contacts the sieve plate 33, the sieve plate 33 is further driven to rotate by a certain angle around the bottom of the sieve plate, after the cam 29 is separated, the sieve plate 33 is pulled to move to the original position by the elasticity of the spring 34, unscreened materials fall into a gap between the sieve plate 33 and the box body 1 through the extension plate 36, the baffle 37 is arranged to prevent the materials from being clamped at the rotating connection position of the sieve plate 33 and the box body 1, the smooth operation of the crushing and screening machine is ensured, the materials fall into the material return pipe 38, the spiral roller 40 is driven by the third motor 39 to rotate to lift the materials and fall into the feed port 41, at the moment, the fourth motor 43 drives the blade 44 to rotate above the shell 42 to crush the conveyed materials and fall onto the surface of the sieve tube 17 again from the feed port 41 to realize conveying, and the materials which are not sieved are discharged after being sufficiently crushed.

The above description is only exemplary of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides a road bridge construction crushing screening machine with dust processing function which characterized in that:

road bridge construction crushing screening machine with dust processing function includes: the device comprises a box body (1), a feeding hopper (2), a screen drum (17), a screen plate (33) and a rotating shaft (26);

the dust collector comprises a box body (1), a feeding hopper (2) and a fan (4), wherein the feeding hopper (2) is fixedly installed at the top of the box body (1), an inward concave surrounding edge (3) is arranged at the top of the feeding hopper (2), the fan (4) is fixedly installed at the top of the box body (1) and is respectively communicated with a first connecting pipe (5) and a second connecting pipe (6), the fan (4) is communicated with an external dust processor, the first connecting pipe (5) and the second connecting pipe (6) are respectively connected with the feeding hopper (2) and the top of the box body (1) in a penetrating manner, a negative pressure pipe (7) is fixedly installed at the top end of the feeding hopper (2), and a plurality of suction nozzles (8) are arranged on the surface of the negative pressure pipe (7);

a screen drum (17) and a screen plate (33) are respectively arranged in the box body (1), a first screen (18) and a second screen (35) are respectively and fixedly installed on the surfaces of the screen drum (17) and the screen plate (33), an inclined plate (19) is fixedly installed in the screen drum (17), an opening (24) is formed in the joint of the bottom end of the inclined plate (19) and the screen drum (17), a guide plate (20) positioned below the opening (24) and sliding plates (21) positioned on two sides of the screen drum (17) are fixedly installed on the outer wall of the screen drum (17), and the sliding plates (21) are fixedly connected through a connecting plate (22);

the isosceles trapezoid structure of a sieve section of thick bamboo (17) cross-section for invering, sieve section of thick bamboo (17) and box (1) inner wall sliding connection, be equipped with pivot (26) between sieve section of thick bamboo (17) and sieve (33), sieve (33) bottom is rotated with box (1) and is connected, pivot (26) both ends all with cam (29) and carousel (30) fixed connection, cam (29) contact sieve (33) surface, cam (29) edge is rotated with connecting rod (31) and is connected, just connecting rod (31) are rotated with connecting plate (22) middle part and are connected.

2. The road and bridge construction crushing and screening machine with the dust treatment function as claimed in claim 1, wherein: go up inside fixed mounting in hopper (2) bottom and have fixing base (9), go up hopper (2) inside and two crushing roller (10) rotate to be connected, two inside equal symmetric distribution of crushing roller (10) to fixing base (9), fixing base (9) and feeding hopper (2) bottom all communicate with box (1), crushing roller (10) one end fixed mounting has intermeshing's gear (11), box (1) top fixed mounting has first motor (12), first motor (12) output and crushing roller (10) other end all with sprocket (13) fixed connection, connect through chain (14) transmission between sprocket (13).

3. The road and bridge construction crushing and screening machine with the dust treatment function as claimed in claim 1, wherein: go up hopper (2) and be located fixing base (9) top and be equipped with the space so that the material stops, go up hopper (2) edge fixedly connected with surrounding edge (3), surrounding edge (3) below is equipped with negative pressure pipe (7) that are located feeding hopper (2) inner wall, negative pressure pipe (7) and first connecting pipe (5) fixed connection.

4. The road and bridge construction crushing and screening machine with the dust treatment function as claimed in claim 1, wherein: box (1) top one side fixed mounting has two sleeve pipes (15), every sleeve pipe (15) is inside all to run through with guide bar (16) and peg graft, the quantity of guide bar (16) is four, four guide bar (16) are located sieve section of thick bamboo (17) edge respectively around, wherein two guide bar (16) run through with box (1) top opposite side and peg graft so that the stable removal of a sieve section of thick bamboo (17).

5. The road and bridge construction crushing and screening machine with the dust treatment function as claimed in claim 1, wherein: opening (24) have been seted up to box (1) outer wall, opening (24) inside and guide plate (20) sliding connection, guide plate (20) cross-section is the V-arrangement structure, just guide plate (20) and swash plate (19) edge fixed connection, four slot holes (23), per two have been seted up to box (1) outer wall all be equipped with opening (24) between slot hole (23), every slot hole (23) inside all with slide (21) sliding connection, slide (21) cross-section is the T structure so that the stable removal of slide (21).

6. The road and bridge construction crushing screening machine with the dust treatment function of claim 1, which is characterized in that: box (1) bottom fixed mounting has second motor (25), second motor (25) output and pivot (26) one end all with band pulley (27) fixed connection, connect through belt (28) transmission between band pulley (27), pivot (26) both ends all extend to the box (1) outside, band pulley (27) be located carousel (30) with between box (1).

7. The road and bridge construction crushing and screening machine with the dust treatment function as claimed in claim 1, wherein: box (1) inner wall fixed mounting has fixed plate (32), fixed plate (32) slope distributes to a sieve section of thick bamboo (17) one side below, fixed plate (32) and sieve (33) top respectively with spring (34) both ends fixed connection, sieve (33) are the column structure of buckling, sieve (33) buckle department fixedly connected with and extend board (36), box (1) bottom fixed mounting has baffle (37), baffle (37) are located sieve (33) one side and correspond the setting in extension board (36) below, just sieve (33) top corresponds the setting and is in fixed plate (32) below.

8. The road and bridge construction crushing screening machine with the dust treatment function of claim 1, which is characterized in that: the utility model discloses a sieve screen, including box (1), feed back pipe (38) and box (1) bottom intercommunication each other, feed back pipe (38) and box (1) intercommunication department correspond and set up in baffle (37) one side, feed back pipe (38) top fixed mounting has third motor (39), third motor (39) output and spiral roller (40) fixed connection, spiral roller (40) and feed back pipe (38) internal rotation are connected, feed inlet (41) and feeding funnel (2) outer wall fixed connection are passed through to feed back pipe (38) top, feed back pipe (38) top and feed inlet (41) intercommunication, feed inlet (41) and box (1) top through connection, just feed inlet (41) correspond and set up in sieve section of thick bamboo (17) top.

9. The road and bridge construction crushing and screening machine with the dust treatment function of claim 8, is characterized in that: feed inlet (41) top fixed mounting has casing (42), casing (42) and feeding funnel (2) outer wall fixed connection, casing (42) top fixed mounting has fourth motor (43), fourth motor (43) output and blade (44) fixed connection, blade (44) are located feed inlet (41) top.

10. The road and bridge construction crushing and screening machine with the dust treatment function as claimed in claim 1, wherein: box (1) one side is equipped with a plurality of riser (45), riser (45) are located box (1) homonymy with guide plate (20), one of them riser (45) fixed mounting has fifth motor (46), fifth motor (46) output and conveying roller (47) fixed connection, the transmission is connected with first conveyer belt (48) and second conveyer belt (49) respectively between conveying roller (47), second conveyer belt (49) and first conveyer belt (48) are located box (1) inside and outside both sides respectively, conveying roller (47) are connected with box (1) bottom rotation, second conveyer belt (49) correspond and set up in sieve (33) below, just first conveyer belt (48) correspond and set up in guide plate (20) below.

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