CN212468800U - Heavy sieve machine of building rubbish primary election - Google Patents

Abstract

A heavy screening machine for primary selection of construction waste is characterized in that a heavy screening hopper is linked with a feed hopper so as to ensure that the heavy screening hopper and the feed hopper keep a proper position relation at any time; the hopper box of the heavy sieve hopper is divided into a material channel to be crushed by a circular hole screen and a steel wire screen, and the material channel and a fine material channel do not need to be crushed; the material channel to be crushed leads to the material conveying mechanism to be crushed, the material channel not needing to be crushed leads to the material conveying mechanism not needing to be crushed, and the fine material channel leads to the fine material conveying mechanism; the positioning pin column ensures the stability of the whole device after the adjustment is finished; the device is arranged in front of the crusher, only the material to be crushed enters the crusher, and a primary selection screening process is added, so that the workload of the crusher and the energy consumption and abrasion consumption generated by the workload are reduced; a process of crushing 40% of the construction waste without the need of crushing materials is omitted, the production rhythm is accelerated, and the production efficiency is improved; the generation of fines with low use value is reduced.

Description

Heavy sieve machine of building rubbish primary election

Technical Field

The utility model relates to a technical field that building rubbish was retrieved especially relates to a heavy sieve machine of building rubbish primary election.

Background

The quantity of the construction waste in China accounts for 30-40% of the total quantity of the urban waste, most of the construction waste is not treated at all, and is transported to the suburbs or the villages by construction units, and is stacked or buried in the open air, so that a large amount of construction expenses such as land charge and waste clearing and transporting cost are consumed, and meanwhile, the problems of waste scattering, dust, ash and sand flying and the like in the clearing and stacking processes cause serious environmental pollution. A lot of resources in the construction waste can be recycled, for example, red bricks and mortar in the construction waste can be crushed to form materials which are used as recycled raw materials and are put into production and life again.

At present, for the recycling of construction waste, in the prior art, after a waste building is dismantled, the construction waste is recycled, crushed and sieved in sequence. The construction waste such as red bricks and mortar is recycled and then directly thrown into a crusher for crushing, and then is sieved. However, in the actual removal, loading and unloading transportation, the red bricks and mortar in the construction waste are naturally crushed, so that a part of materials which can be directly screened without crushing and fine materials with too small particle size and low use value are generated, wherein the materials which can be directly screened without crushing account for about 40%. The materials which can be directly screened without being crushed can form more fine materials with low use value after being crushed, and energy and crushing equipment are wasted. Therefore, it is necessary to adjust the existing treatment process, and the part of the construction waste which does not need to be crushed is firstly sorted out from the recycled construction waste, and then is directly used as a raw material to be put into the production of recycling by skipping crushing. The prior art does not have the equipment for directly sorting the building garbage which is just recycled, so the process for recycling the building garbage is difficult to adjust.

Disclosure of Invention

The utility model aims at solving the problem and providing a heavy screening machine of building rubbish primary election.

The technical scheme of the utility model is that: the utility model aims at solving the problems and providing a construction waste primary separation heavy screening machine which comprises an integral chassis positioned at the bottom of the whole device, a fine material conveying mechanism, a bottom conveying mechanism, a heavy screening hopper above the bottom conveying mechanism, a feeding hopper, a material conveying mechanism to be crushed, a material conveying mechanism which does not need to be crushed and a connecting part for connecting the above parts;

the heavy sieve hopper comprises a heavy sieve hopper box, a circular hole screen, a steel wire screen, a vibration motor, a spring shock absorption connecting device, a heavy sieve hopper bracket, guide rubber and a guide plate;

the heavy sieve hopper box is fixed on a heavy sieve hopper bracket through a spring shock absorption connecting device, and the heavy sieve hopper bracket is connected with the integral chassis;

the circular hole screen is fixed on the upper part of the inner part of the heavy-screen bucket box and is parallel to the top surface of the heavy-screen bucket box, and the diameter of each circular hole correspondingly distinguishes the set size of the material to be crushed and the material not to be crushed; the steel wire screen is fixed in the heavy screen bucket and is inclined downwards and parallel to the top surface of the heavy screen bucket; circular port screen cloth and steel wire screen cloth have divided into the three-layer to heavy sieve fill incasement portion: a material channel to be crushed, a material channel not to be crushed and a fine material channel; the circular hole screen separates a material channel to be crushed and a material channel which does not need to be crushed; the steel wire screen separates a material channel which does not need to be crushed and a fine material channel; the guide rubber is arranged at an outlet of the material channel which does not need to be crushed, is tightly attached to the inner wall of the material channel which does not need to be crushed, and the other end of the guide rubber is led into the material collecting box which does not need to be crushed; the guide plate is arranged at the outlet of the material channel to be crushed, is tightly attached to the inner wall of the material channel to be crushed, and the other end of the guide plate is communicated with the material conveying mechanism to be crushed;

the feeding hopper is positioned above the front end of the integral chassis, the butt joint position of the feeding hopper and the heavy sieve hopper is slightly higher than that of the heavy sieve hopper, and the feeding hopper comprises a feeding hopper enclosure positioned on the upper side of the feeding hopper, a feeding hopper conveying device positioned in the middle of the feeding hopper and a feeding hopper matching lifting device positioned on the lower side of the feeding hopper; the width of the feed hopper conveying device is smaller than the width of the inner space of the heavy sieve hopper; the feed hopper matching lifting device comprises a feed hopper matching lifting track square tube, a feed hopper matching lifting hinge hole and a feed hopper matching hinge plate; the track side pipe is lifted in the feeder hopper cooperation be located the both sides of feeder hopper, its length should be less than feeder hopper conveyor, and be provided with the feeder hopper cooperation at the tip and lift the hinge hole, and other end below is equipped with two feeder hopper cooperation articulated joints and is connected with whole chassis.

The bottom surface of the hopper box of the heavy sieve hopper is an isosceles trapezoid prism lacking an acute angle, and the top surface, the bottom surface and the side surface with the other waist as a bus are cut open; the vibrating motors are arranged on two sides of the hopper box of the heavy sieve hopper; the spring damping connecting devices are arranged at four corners of the heavy sieve hopper box and comprise spring damping upper connecting plates, damping springs and spring damping lower connecting plates; the spring shock absorption upper connecting plate is formed by welding four steel plates, wherein one fan-shaped steel plate is parallel to and fixed on the side surface of the heavy sieve hopper box, the other three steel plates are perpendicular to the fan-shaped steel plates, and the three steel plates form a whole while forming included angles with each other; the damping springs are connected with the spring damping upper connecting plate and the spring damping lower connecting plate, and the three damping springs are respectively connected with the spring damping upper connecting plate on three steel plates which form included angles with each other; the lower shock-absorbing connecting plate is formed by welding three steel plates, and each connecting plate is parallel to the upper spring-absorbing connecting plate and is positioned between the three steel plates with included angles; the whole guide rubber is of a tubular structure and has certain elasticity; the heavy screening hopper support comprises two heavy screening hopper support supporting beams which are in a 7 shape and are symmetrically distributed on two sides of a heavy screening hopper box and a square column-shaped heavy screening hopper support cross beam close to the 7-shaped head, and a heavy screening hopper support hinge hole used for being matched with the heavy screening hopper hinge hole is formed in the 7-shaped tail part of each heavy screening hopper support supporting beam; a convex part is arranged at the corner of the 7 shape, and a lifting long hole and a lifting groove are arranged on the convex part; the 7-shaped head is provided with a feed hopper adjusting hinge hole and a groove for the feed hopper adjusting hinge hole.

The connecting part comprises a lifting connecting part, a linkage connecting column, a random adjusting connecting part and a positioning pin column;

the lifting connecting component is matched with the linkage connecting column to enable the heavy sieve hopper to be linked with the feed hopper, and the lifting connecting component comprises a lifting push-pull rod, a lifting square positioning column, a lifting connecting plate, a lifting connecting pin shaft and a lifting positioning shaft; the lifting push-pull rod extends out of the elliptical hole in the top surface of the lifting connecting column until the lifting push-pull rod is fixed on the lifting connecting pin shaft; the lifting connecting plate fixes the lifting push-pull rod and the lifting square positioning column together; the length of the lifting connecting pin shaft does not exceed the outer side surfaces of the two lifting connecting plates; the length of the lifting positioning shaft must exceed the outer side surfaces of the two lifting connecting plates, and two end surfaces are respectively provided with a disc with the diameter larger than that of the middle part of the lifting positioning shaft; the clearance between the inner side surface of the lifting positioning shaft disc and the outer side surface of the lifting connecting plate is larger than the thickness left by a single side after the lifting groove is arranged on the support beam of the heavy sieve hopper support; the linkage connecting column extends into the groove for the feed hopper adjusting hinge hole from the feed hopper matched with the lifting track square tube and is hinged with the feed hopper adjusting hinge hole, and a row of non-equidistant through holes corresponding to the feed hopper matched lifting hinge hole are arranged on the side surface, namely linkage connecting column holes; each linkage connecting column hole corresponds to one lifting square positioning column hole; the two sets of random adjusting connecting components are a group and are used for connecting the fine material conveying mechanism, the material conveying mechanism to be crushed and the material conveying mechanism which does not need to be crushed with the integral chassis; each set of random adjusting connecting part comprises an L-shaped connecting rod and a cylindrical connecting rod; the short edge of the L-shaped connecting rod is hinged with the fine material conveying mechanism, the material conveying mechanism to be crushed and the material conveying mechanism not to be crushed, and the corresponding hinged objects are a fine material conveying belt connecting shaft, a material conveying belt connecting shaft to be crushed and a material conveying belt connecting shaft not to be crushed respectively; the middle of the long side of the L-shaped connecting rod is hollow, the L-shaped connecting rod can pass through the cylindrical connecting rod, and an L-shaped connecting rod hole is formed in the position where the L-shaped connecting rod is combined with the cylindrical connecting rod; one end of the cylindrical connecting rod is hinged with the base, corresponds to the fine material conveying mechanism, the material conveying mechanism to be crushed and the material conveying mechanism which does not need to be crushed, the hinged positions are respectively a fine material conveying mechanism connecting hole, a simply supported beam connecting hole and a material conveying mechanism connecting hole which does not need to be crushed, and the other end of the cylindrical connecting rod is provided with a row of equidistant through holes corresponding to the L-shaped connecting rod holes, namely the cylindrical connecting rod holes; the positioning pin columns are respectively plugged into the lifting square positioning column holes, the linkage connecting column holes and the cylindrical connecting rod holes when the lifting connecting part, the linkage connecting column and the random adjusting connecting part change the motion state to the required state.

The integral chassis comprises walking tracks which are bilaterally and symmetrically distributed on the lowest part of the integral chassis, a base which is positioned at the upper and lower central positions of the integral chassis, a triangular bracket which is bilaterally and symmetrically distributed at the rear part of the base, an arch bridge structure, a material collecting box which does not need to be crushed, a lifting connecting column, a bottom conveying frame fixing column and a power source which is arranged between a feed hopper matching hinge column and a fine material conveying mechanism mounting groove; the base comprises a material conveying mechanism mounting groove which is positioned at the rear of the base and does not need to be crushed, a material conveying mechanism connecting hole which is positioned at the left side of the base and does not need to be crushed, a bottom conveying mechanism mounting groove which is positioned at the position, close to the material conveying mechanism mounting groove, of the base, a fine material conveying mechanism mounting groove which is positioned at the front position of the base, and a fine material conveying mechanism connecting hole which is positioned at the right side of the base; the triangular support comprises a material conveying mechanism rotating hole at an upper position, a heavy sieve bucket hinge hole at an upper middle position and a bottom conveying mechanism fixing hole at a lower position; the arch bridge structure is positioned at the upper end of the triangular support, the triangular supports at two sides are connected, the simply supported beams which are symmetrical left and right extend backwards, and the simply supported beams are provided with simply supported beam connecting holes; the lifting connecting columns are symmetrically distributed at the rear positions of the fine material conveying mechanism mounting groove in the left-right direction, the top surfaces of the lifting connecting columns are oblique planes and are provided with elliptical holes and rectangular holes, and the side surfaces of the lifting connecting columns are provided with through holes, namely lifting connecting column holes; the bottom conveying frame fixing columns are located between the lifting connecting columns and the triangular supports and are distributed in a bilateral symmetry mode, and bottom conveying frame fixing holes matched with the bottom conveying mechanism are formed in the top ends of the bottom conveying frame fixing columns.

The fine material conveying mechanism is positioned in the middle of the integral chassis at a front position, extends towards the right side, and comprises a fine material conveying roller, a fine material conveying belt, a fine material conveying frame and a fine material collecting box with an inlet width larger than that of the bottom conveying mechanism; the fine material conveying mechanism is characterized in that the fine material collecting box is arranged on the upper side of the fine material conveying frame; the middle of the two sides of the fine material conveying frame, which is close to the length direction of the fine material conveying frame, is provided with a fine material conveying belt connecting shaft;

the bottom conveying mechanism is positioned at the rear part of the integral chassis and comprises a bottom conveying roller, a bottom conveying belt, a bottom conveying frame and a bottom collecting box; the bottom conveying roller and the two ends of the bottom conveying belt support the bottom conveying belt, the two ends of the bottom conveying belt are provided with U-shaped bottom conveying frames which surround the bottom conveying roller and the bottom conveying belt, a bottom collecting box is arranged above the U-shaped bottom position, the side surface of the U-shaped bottom position is hinged with a bottom conveying mechanism fixing hole, a bottom conveying belt connecting shaft is arranged in the middle of the bottom conveying frame in the length direction and close to the front position and matched with the bottom conveying frame fixing hole to fix the bottom conveying mechanism;

the material conveying mechanism to be crushed is positioned at the rear position of the integral chassis, extends backwards and comprises a material conveying roller to be crushed, a material conveying belt to be crushed, a material conveying frame to be crushed and a material collecting box to be crushed; the conveying rollers for the materials to be crushed support the conveying belts for the materials to be crushed at two ends of the conveying belts for the materials to be crushed in the length direction, U-shaped conveying frames for the materials to be crushed are arranged at two ends of the conveying belts for the materials to be crushed, the conveying rollers for the materials to be crushed and the conveying belts for the materials to be crushed are surrounded by the conveying rollers for the materials to be crushed, and a collecting box for the materials to be crushed is arranged above the U-shaped bottom; the material conveying frame to be crushed comprises a lifting positioning shaft and a crushed material conveying belt connecting shaft; the lifting positioning shafts are arranged on two sides of the material conveying frame to be crushed, and are hinged with the integral chassis at the rotating hole of the material conveying mechanism to be crushed below the material collecting box to be crushed; the material crushing conveyer belt connecting shafts are arranged on two sides of the material conveying frame to be crushed and are close to the material conveying belt connecting shaft to be crushed in the middle of the material conveying frame to be crushed in the length direction;

the material conveying mechanism which does not need to be crushed is positioned at the rear position of the whole chassis, and the material conveying mechanism to be crushed extends out to the left side between the chassis and the material conveying mechanism to be crushed, and comprises a material conveying roller which does not need to be crushed, a material conveying belt which does not need to be crushed and a material conveying frame which does not need to be crushed; the material conveying rollers which do not need to be crushed are three in number, two of the material conveying rollers are arranged in the material collecting box which does not need to be crushed, the axis direction of the material conveying rollers is parallel to the longitudinal direction of the base, and the material conveying rollers which do not need to be crushed and the other material conveying rollers which are close to the left side of the base are clamped by two material conveying frames which do not need to be crushed; the connecting shafts of the conveying belts of the materials which do not need to be crushed are arranged on two sides of the conveying frame of the materials which do not need to be crushed and are close to the middle of the conveying frame of the materials which do not need to be crushed in the length direction.

The feed hopper is matched with the hinged plate to clamp the feed hopper and is matched with the hinged column to be hinged with the feed hopper.

The utility model has the advantages that: the heavy screening bucket and the feed hopper of the construction waste primary screening heavy screening machine of the utility model are linked to ensure that the heavy screening bucket and the feed hopper keep proper position relation at any time; the hopper box of the heavy sieve hopper is divided into a material channel to be crushed by a circular hole screen and a steel wire screen, and the material channel and a fine material channel do not need to be crushed; the material channel to be crushed leads to the material conveying mechanism to be crushed, the material channel not needing to be crushed leads to the material conveying mechanism not needing to be crushed, and the fine material channel leads to the fine material conveying mechanism; the positioning pin column ensures the stability of the whole device after the adjustment is finished; the device is arranged in front of the crusher, only the material to be crushed enters the crusher, and a primary selection screening process is added, so that the workload of the crusher and the energy consumption and abrasion consumption generated by the workload are reduced; a process of crushing 40% of the construction waste without the need of crushing materials is omitted, the production rhythm is accelerated, and the production efficiency is improved; meanwhile, the generation of fine materials with low use value is reduced, and the quality of the materials is improved.

Drawings

FIG. 1 is a first schematic structural view of the construction waste primary screening and re-screening machine of the present invention;

FIG. 2 is a front view of FIG. 1;

FIG. 3 is an enlarged view A of FIG. 2;

FIG. 4 is an enlarged view B of FIG. 2;

FIG. 5 is an enlarged view C of FIG. 2;

FIG. 6 is a top view of FIG. 1;

FIG. 7 is a cross-sectional view D-D of FIG. 6;

FIG. 8 is a left side view of FIG. 1;

FIG. 9 is an enlarged view E of FIG. 8;

FIG. 10 is an enlarged view F of FIG. 8;

FIG. 11 is a first schematic structural view of a heavy screening hopper of the construction waste primary screening heavy screening machine of the present invention;

FIG. 12 is a front view of FIG. 11;

FIG. 13 is a sectional view taken along line G-G of FIG. 12;

FIG. 14 is an enlarged view H of FIG. 12;

FIG. 15 is a top view of FIG. 11;

FIG. 16 is a sectional view taken along line J-J of FIG. 15;

FIG. 17 is a right side view of FIG. 11;

FIG. 18 is a front view of the lifting connection component of the construction waste primary screening and re-screening machine of the present invention;

FIG. 19 is a cross-sectional view taken along line K-K of FIG. 18;

FIG. 20 is a top view of FIG. 18;

FIG. 21 is a front view of the random adjusting connecting part of the construction waste primary screening and re-screening machine of the present invention;

FIG. 22 is a right side view of FIG. 21;

FIG. 23 is a second schematic structural view of the construction waste primary screening and re-screening machine of the present invention;

in the figure: 1. the device comprises an integral chassis, 2, a fine material conveying mechanism, 3, a bottom conveying mechanism, 4, a heavy sieve hopper, 5, a feed hopper, 6, a material conveying mechanism to be crushed, 7, a material conveying mechanism not to be crushed, 8, a connecting part, 11, a walking crawler, 12, a base, 121, a material conveying mechanism mounting groove not to be crushed, 122, a material conveying mechanism connecting hole not to be crushed, 123, a bottom conveying mechanism mounting groove, 124, a fine material conveying mechanism mounting groove, 125, a fine material conveying mechanism connecting hole, 13, a triangular bracket, 131, a material conveying mechanism rotating hole to be crushed, 132, a heavy sieve hopper hinge hole, 133, a bottom conveying mechanism fixing hole, 14, an arch bridge structure, 141, a simple beam, 142, a simple beam connecting hole, 15, a material collecting box not to be crushed, 16, a lifting connecting column, 161, a lifting connecting column hole, 17. The fine material crushing device comprises a bottom conveying frame fixing column 171, a bottom conveying frame fixing hole, a feed hopper 18, a feed hopper matching hinge column 19, a power source 22, a fine material conveying belt 23, a fine material conveying frame 231, a fine material conveying belt rotating shaft 232, a fine material conveying belt connecting shaft 24, a fine material collecting box 31, a bottom conveying roller 32, a bottom conveying belt 33, a bottom conveying frame 331, a bottom conveying belt connecting shaft 34, a bottom collecting box 41, a heavy screening hopper box 411, a material channel to be crushed 412, a material channel which does not need to be crushed 413, a fine material channel 42, a circular hole screen 43, a steel wire screen 44, a vibrating motor 45, a spring damping connecting device 451, a spring damping upper connecting plate 452, a damping spring, a 453, a spring damping lower connecting plate 46, a heavy screening hopper support 46, a power source, 461. Heavy sieve support beam, 462 heavy sieve support beam, 463 heavy sieve support hinge hole, 464 lifting long hole, 465 lifting groove, 466 feed hopper adjusting hinge hole, 467 feed hopper adjusting hinge hole groove, 47 guide rubber, 48 guide plate, 51 feed hopper enclosure, 52 feed hopper conveying device, 53 feed hopper matching lifting device, 531 feed hopper matching lifting track square tube, 532 feed hopper matching lifting hinge hole, 533 feed hopper matching hinge plate, 61 material conveying roller to be crushed, 62 material conveying belt to be crushed, 63 material conveying frame to be crushed, 71 material conveying roller to be crushed, 72 material conveying belt to be crushed, 73 material conveying frame to be crushed, 81 lifting connecting component, 811 lifting push-pull rod to be lifted, 812. The device comprises a lifting square positioning column, 8121 lifting square positioning column holes, 813 lifting connecting plates, 814 lifting connecting pin shafts, 815 lifting positioning shafts, 82 linkage connecting columns, 821 linkage connecting column holes, 83 random adjusting connecting parts, 831L-shaped connecting rods, 8311L-shaped connecting rod holes, 832 cylindrical connecting rods, 8321 cylindrical connecting rod holes and 84 positioning pin columns.

Detailed Description

The first embodiment is as follows: referring to fig. 1-23, a construction waste primary screening heavy screening machine, which is located at the bottom of the whole device, and comprises an integral chassis, a fine material conveying mechanism, a bottom conveying mechanism, a heavy screening hopper above the bottom conveying mechanism, a feeding hopper, a material conveying mechanism to be crushed, a material conveying mechanism without crushing and connecting components for connecting the above components;

the heavy-screening bucket comprises a heavy-screening bucket hopper box, a vibrating motor, spring damping connecting devices, a heavy-screening bucket bracket, tubular guide rubber and a guide plate, wherein the bottom surface of the heavy-screening bucket hopper box is an isosceles trapezoid prism without an acute angle, the side surfaces of the top surface, the bottom surface and the other waist of the heavy-screening bucket hopper box are cut open, the inside of the heavy-screening bucket hopper box is upward, the round hole screen with the diameter of 32.5mm is parallel to the top surface of the heavy-screening bucket hopper box, the inside of the heavy-screening bucket hopper box is downward, the steel wire screen is parallel to the top surface of the heavy-screening bucket hopper box, the vibrating motor is arranged on two sides of the heavy-screening bucket hopper box, the spring damping connecting devices are arranged at four corners of; circular port screen cloth and steel wire screen cloth have divided into the three-layer to heavy sieve fill incasement portion: a material channel to be crushed, a material channel not to be crushed and a fine material channel; the circular hole screen separates a material channel to be crushed and a material channel which does not need to be crushed; the steel wire screen separates a material channel which does not need to be crushed and a fine material channel; the guide rubber is arranged at an outlet of the material channel which does not need to be crushed, is tightly attached to the inner wall of the material channel which does not need to be crushed, and the other end of the guide rubber is led into the material collecting box which does not need to be crushed; the guide plate is arranged at the outlet of the material channel to be crushed, is tightly attached to the inner wall of the material channel to be crushed, and the other end of the guide plate is communicated with the material conveying mechanism to be crushed; the heavy screening hopper support comprises two heavy screening hopper support supporting beams which are in a 7 shape and are symmetrically distributed on two sides of a heavy screening hopper box and a square column-shaped heavy screening hopper support cross beam close to the 7-shaped head, and a heavy screening hopper support hinge hole used for being matched with the heavy screening hopper hinge hole is formed in the 7-shaped tail part of each heavy screening hopper support supporting beam; a convex part is arranged at the corner of the 7 shape, and a lifting long hole and a lifting groove are arranged on the convex part; the 7-shaped head is provided with a feed hopper adjusting hinge hole and a groove for the feed hopper adjusting hinge hole;

the connecting parts comprise lifting connecting parts, linkage connecting columns, random adjusting connecting parts and positioning pin columns which are matched with the linkage connecting columns to enable the heavy sieve hopper and the feed hopper to be in linkage; the lifting connecting part comprises a lifting push-pull rod, a lifting square positioning column, a lifting connecting plate, a lifting connecting pin shaft and a lifting positioning shaft, wherein the lifting connecting rod extends out of an elliptical hole on the top surface of the lifting connecting column until the lifting push-pull rod and the lifting square positioning column are fixed on the lifting connecting pin shaft; linkage spliced pole lift track side pipe by the feeder hopper cooperation and stretch to the feeder hopper and adjust the hinge hole and use the inslot to adjust the hinge hole articulated with the feeder hopper, and set up in the side and lift the unequal distance through-hole that the hinge hole corresponds with the feeder hopper cooperation, linkage connecting post hole promptly, each linkage connecting post hole is corresponding to a square locating post hole of lifting.

The integral chassis comprises a walking crawler belt which is distributed on the lowest part of the integral chassis in a bilateral symmetry manner, a base which is positioned at the upper and lower central positions of the integral chassis, a triangular bracket which is positioned at the rear part of the base and is shaped like a triangle, and the triangular bracket and the arch bridge structure which are distributed in a bilateral symmetry manner are fixed in a material conveying mechanism mounting groove which does not need to be crushed, and a four-edge boss, an upper through hole and a lower through hole are arranged in an upper and lower back-off manner, wherein the material collecting box which does not need to be crushed, a lifting connecting column and a bottom conveying frame fixing column are split at the side surface of the lower four-edge boss facing to the left side surface of the chassis; the base comprises a material conveying mechanism mounting groove which is not required to be crushed and is positioned behind the base, a material conveying mechanism connecting hole which is positioned at the left side of the base and is not required to be crushed and is positioned at the two ends of the material conveying mechanism mounting groove which is not required to be crushed, a bottom conveying mechanism mounting groove which is positioned at the base and is close to the material conveying mechanism mounting groove which is not required to be crushed, a fine material conveying mechanism mounting groove which is positioned at the front position of the base, and a fine material conveying mechanism connecting hole which is positioned at the right side of the base and is positioned at; the triangular support comprises a material conveying mechanism rotating hole close to the position of the free vertex of the triangular support to be crushed, a heavy sieve hopper hinge hole at a higher position on the edge close to the middle of the triangular support, and a bottom conveying mechanism fixing hole lower than the heavy sieve hopper hinge hole; the arch bridge structure is positioned at the upper end of the triangular support, the triangular supports at two sides are connected, the simply supported beams which are symmetrical left and right extend backwards, and the simply supported beams are provided with simply supported beam connecting holes; the lifting connecting columns are positioned at the rear parts of the fine material conveying mechanism mounting grooves and symmetrically distributed on the left side and the right side of the base, and the top surfaces of the lifting connecting columns are oblique planes and are provided with elliptical holes and rectangular holes; and the lower side surface of the inclined plane is provided with a through hole, namely a lifting connecting column hole; the bottom conveying frame fixing columns are located between the lifting connecting columns and the triangular supports and symmetrically distributed on the left side and the right side of the base, and bottom conveying frame fixing holes matched with the bottom conveying mechanism are formed in the top ends of the bottom conveying frame fixing columns.

The fine material conveying mechanism is positioned in the middle of the integral chassis at a front position, extends towards the right side, and comprises a fine material conveying roller, a fine material conveying belt, a fine material conveying frame and a fine material collecting box with an inlet width larger than that of the bottom conveying mechanism; the fine material conveying mechanism is characterized in that the fine material collecting box is arranged on the upper side of the fine material conveying frame; and the middle of the two sides of the fine material conveying frame, which is close to the length direction of the fine material conveying frame, is provided with a fine material conveying belt connecting shaft.

The bottom conveying mechanism is positioned at the rear part of the integral chassis and comprises a bottom conveying roller, a bottom conveying belt, a bottom conveying frame and a bottom collecting box; the bottom conveying roller and the two ends of the bottom conveying belt support the bottom conveying belt, the two ends of the bottom conveying belt are provided with U-shaped bottom conveying frames which surround the bottom conveying roller and the bottom conveying belt, a bottom collecting box is arranged above the U-shaped bottom position, the side surface of the U-shaped bottom position is hinged with a bottom conveying mechanism fixing hole, a bottom conveying belt connecting shaft is arranged in the middle of the bottom conveying frame in the length direction and close to the front position and matched with the bottom conveying frame fixing hole to fix the bottom conveying mechanism; the upper through hole and the lower through hole of the bottom collecting box are provided with inverted four-edge bosses which are cut open on the side surface facing the longitudinal front of the chassis.

The feeding hopper is positioned above the front end of the integral chassis, the butt joint position of the feeding hopper and the heavy screening hopper is slightly higher than the heavy screening hopper, the feeding hopper is positioned at the upper side of the feeding hopper, the materials can be guaranteed to be collected and enter a feeding hopper enclosure of the feeding hopper conveying device, the middle position of the feeding hopper is guaranteed, the materials entering the feeding hopper conveying device are guaranteed to be conveyed to the upper side of the heavy screening hopper and enter the feeding hopper conveying device of the heavy screening hopper, and the feeding hopper positioned at the lower side of the feeding hopper is matched; the width of the feed hopper conveying device is smaller than the width of the inner space of the heavy sieve hopper; the feed hopper matching lifting device comprises a feed hopper matching lifting track square tube, a feed hopper matching lifting hinge hole and a feed hopper matching hinge plate; the feed hopper is matched with the lifting track square pipe and is positioned at two sides of the feed hopper, the length of the feed hopper is smaller than that of the feed hopper conveying device, the end part of the feed hopper is provided with a feed hopper matched lifting hinge hole, and two feed hopper matched hinge plates are arranged below the other end of the feed hopper; the matching hinge plate can clamp the hopper matching hinge column and is hinged with the hopper matching hinge column.

The material conveying mechanism to be crushed is positioned at the rear position of the integral chassis, extends backwards and comprises a material conveying roller to be crushed, a material conveying belt to be crushed, a material conveying frame to be crushed and a material collecting box to be crushed; the conveying rollers for the materials to be crushed support the conveying belts for the materials to be crushed at two ends of the conveying belts for the materials to be crushed in the length direction, U-shaped conveying frames for the materials to be crushed are arranged at two ends of the conveying belts for the materials to be crushed, the conveying rollers for the materials to be crushed and the conveying belts for the materials to be crushed are surrounded by the conveying rollers for the materials to be crushed, and a collecting box for the materials to be crushed is arranged above the U-shaped bottom; the material conveying frame to be crushed comprises a material conveying belt rotating shaft which is arranged on two sides of the material conveying frame to be crushed and is hinged with the whole chassis at a rotating hole of the material conveying mechanism to be crushed, a material conveying belt rotating shaft which is arranged on two sides of the material conveying frame to be crushed and is close to the middle of the material conveying belt connecting shaft to be crushed in the length direction of the material conveying frame to be crushed, and a material collecting box to be crushed.

The material conveying mechanism which does not need to be crushed is positioned at the rear position of the whole chassis, and the material conveying mechanism to be crushed extends out to the left side between the chassis and the material conveying mechanism to be crushed, and comprises a material conveying roller which does not need to be crushed, a material conveying belt which does not need to be crushed and a material conveying frame which does not need to be crushed; the material conveying rollers which do not need to be crushed are three in number, two of the material conveying rollers are arranged in the material collecting box which does not need to be crushed, the axis direction of the material conveying rollers is parallel to the longitudinal direction of the base, and the material conveying rollers which do not need to be crushed and the other material conveying rollers which are close to the left side of the base are clamped by two material conveying frames which do not need to be crushed; the three conveying rollers of the materials which are not required to be crushed ensure that the conveying belt of the materials which are not required to be crushed and matched with the conveying rollers of the materials are kept horizontal above the base, and are lifted at the left side of the base to form an inclination angle with the base; the connecting shafts of the conveying belts of the materials which do not need to be crushed are arranged on two sides of the conveying frame of the materials which do not need to be crushed and are close to the middle of the conveying frame of the materials which do not need to be crushed in the length direction.

The clearance between the inner side surface of the disc of the lifting positioning shaft and the outer side surface of the lifting connecting plate is larger than the thickness left by the single side of the lifting groove formed in the support beam of the heavy screen bucket support, so that the lifting positioning shaft can slide in the lifting long hole.

The two sets of random adjusting connecting components are a group and are used for connecting the fine material conveying mechanism, the material conveying mechanism to be crushed and the material conveying mechanism which does not need to be crushed with the integral chassis; each set of random adjusting connecting part comprises an L-shaped connecting rod and a cylindrical connecting rod; the short edge of the L-shaped connecting rod is hinged with the fine material conveying mechanism, the material conveying mechanism to be crushed and the material conveying mechanism not to be crushed, and the corresponding hinged structures are respectively a fine material conveying belt connecting shaft, a material conveying belt connecting shaft to be crushed and a material conveying belt connecting shaft not to be crushed; the middle of the long side of the L-shaped connecting rod is hollow, the L-shaped connecting rod can pass through the cylindrical connecting rod, and an L-shaped connecting rod hole is arranged at the position combined with the cylindrical connecting rod; one end of the columnar connecting rod is hinged with the base, corresponds to the fine material conveying mechanism, the material conveying mechanism to be crushed and does not need to be crushed, the hinged positions are respectively a fine material conveying mechanism connecting hole, a simply supported beam connecting hole and a material conveying mechanism connecting hole which does not need to be crushed, and the other end of the columnar connecting rod is provided with a row of equidistant through holes corresponding to the L-shaped connecting rod holes, namely the columnar connecting rod holes.

The positioning pin columns are respectively plugged into the lifting square positioning column holes, the linkage connecting column holes and the cylindrical connecting rod holes when the lifting connecting part, the linkage connecting column and the random adjusting connecting part change the motion state to the required state, so that the required state is stable.

The spring damping connecting device comprises a spring damping upper connecting plate, a damping spring and a spring damping lower connecting plate; the spring shock absorption upper connecting plate is formed by welding four steel plates, wherein one fan-shaped steel plate is parallel to and fixed on the side surface of the heavy sieve hopper box, the other three steel plates are perpendicular to the fan-shaped steel plates, and the three steel plates form a whole while forming included angles with each other; the damping springs are connected with the spring damping upper connecting plate and the spring damping lower connecting plate, and the three damping springs are respectively connected with the spring damping upper connecting plate on three steel plates which form included angles with each other; the lower shock-absorbing connecting plate is formed by welding three steel plates, and each connecting plate is parallel to the upper spring-absorbing connecting plate and is positioned between the three steel plates with included angles; the spring shock absorption upper connecting plate is fixed on the heavy sieve hopper box, and the spring shock absorption lower connecting plate is fixed on the heavy sieve hopper support supporting beam, so that the phenomenon that the vibration of the vibration motor causes the resonance of the whole device to decompose the whole equipment is avoided.

The heavy sieve hopper and the feed hopper can be linked through the matching of the lifting connecting part and the linkage connecting column, so that the heavy sieve hopper and the feed hopper can be kept at proper positions at any time; the material channel to be crushed, the material channel not to be crushed and the fine material channel of the heavy sieve hopper can respectively send the material to be crushed, the material not to be crushed and the fine material into the material conveying mechanism to be crushed, the material conveying mechanism not to be crushed and the fine material conveying mechanism; the principle is that materials to be crushed with granularity and materials not to be crushed are separated through a circular hole screen, the materials to be crushed enter a material conveying mechanism to be crushed through the inclination of a heavy sieve hopper and the guidance of a guide plate, and the generation area of the process is a material channel to be crushed; then, the materials which are not required to be crushed are separated from the usable materials which are not required to be crushed in the channels which are not required to be crushed by the steel wire screen, the fine materials enter the fine material channels and then enter the fine material conveying mechanism, and the usable materials which are not required to be crushed enter the conveying mechanism which is not required to be crushed by the inclination of the heavy sieve hopper and the guidance of the guide rubber;

example two: the construction waste recycling process by using the construction waste primary screening and re-screening machine comprises the following steps:

recovery: loading the construction waste after being removed from the removal construction site as a material, and transporting the construction waste back to a working site where a re-screening machine for the construction waste is primarily selected;

sieving for initial selection: starting the site-adjusted construction waste primary-selection re-screening machine, and gradually putting the recycled materials into a feed hopper by using an excavator; the feed hopper can buffer the impact force when the materials are put into the feed hopper and then convey the materials to the heavy sieve hopper; the vibrating motor drives the heavy sieve hopper to vibrate, so that materials can be uniformly and effectively screened by the circular hole screen and the steel wire screen;

when the materials enter the heavy sieve hopper from the feed hopper, the materials move downwards along a material channel to be crushed with a certain inclination angle; along with the vibration brought by the vibration motor, the materials to be crushed enter a material conveying mechanism to be crushed through a guide plate by screening of the circular hole screen; the rest materials enter a material channel which does not need to be crushed and also has a certain inclination through a circular hole of the circular empty screen; in the material channel which does not need to be crushed, the remaining materials are divided into the materials which do not need to be crushed and fine materials by the steel wire screen along with the vibration brought by the vibration motor; the materials which are not required to be crushed enter the material conveying mechanism which is not required to be crushed, and the fine materials are conveyed into the fine material conveying mechanism from the bottom conveying mechanism after passing through the steel wire screen;

crushing: crushing the material to be crushed by a crusher;

sieving: the crushed materials and the materials which are not needed to be crushed in the first step enter an aggregate screening process together to subdivide coarse aggregates and fine aggregates with different granularity.

The site adjustment of the construction waste primary screening heavy screening machine is that the lifting height of the lifting connecting part is adjusted according to the actual condition of a working site to drive the linkage connecting column to move, so that the inclination angles of the heavy screening hopper and the feeding hopper are adjusted in a mutually matched mode simultaneously to ensure that the excavator has enough working space in front of the feeding hopper; meanwhile, the inclination angles of the fine material conveying mechanism, the material conveying mechanism to be crushed and the material conveying mechanism which does not need to be crushed relative to the integral chassis are adjusted so as to ensure that the materials conveyed by the fine material conveying mechanism and the material conveying mechanism can be away from the building rubbish primary selection re-screening machine for a proper distance to distinguish the materials; when the structure is adjusted, the random adjusting connecting part and the positioning pin are respectively used for fixing the structure.

Claims (6)

1. A heavy screening machine for primary selection of construction waste comprises an integral chassis positioned at the bottom of the whole device, a fine material conveying mechanism, a bottom conveying mechanism, a heavy screening hopper above the bottom conveying mechanism, a feed hopper, a material conveying mechanism to be crushed, a material conveying mechanism which does not need to be crushed and a connecting part for connecting the above parts;

the heavy sieve hopper comprises a heavy sieve hopper box, a circular hole screen, a steel wire screen, a vibration motor, a spring shock absorption connecting device, a heavy sieve hopper bracket, guide rubber and a guide plate;

the method is characterized in that:

the heavy sieve hopper box is fixed on a heavy sieve hopper bracket through a spring shock absorption connecting device, and the heavy sieve hopper bracket is connected with the integral chassis;

the circular hole screen is fixed on the upper part of the inner part of the heavy-screen bucket box and is parallel to the top surface of the heavy-screen bucket box, and the diameter of each circular hole correspondingly distinguishes the set size of the material to be crushed and the material not to be crushed; the steel wire screen is fixed in the heavy screen bucket and is inclined downwards and parallel to the top surface of the heavy screen bucket; circular port screen cloth and steel wire screen cloth have divided into the three-layer to heavy sieve fill incasement portion: a material channel to be crushed, a material channel not to be crushed and a fine material channel; the circular hole screen separates a material channel to be crushed and a material channel which does not need to be crushed; the steel wire screen separates a material channel which does not need to be crushed and a fine material channel; the guide rubber is arranged at an outlet of the material channel which does not need to be crushed, is tightly attached to the inner wall of the material channel which does not need to be crushed, and the other end of the guide rubber is led into the material collecting box which does not need to be crushed; the guide plate is arranged at the outlet of the material channel to be crushed, is tightly attached to the inner wall of the material channel to be crushed, and the other end of the guide plate is communicated with the material conveying mechanism to be crushed;

the feeding hopper is positioned above the front end of the integral chassis, the butt joint position of the feeding hopper and the heavy sieve hopper is slightly higher than that of the heavy sieve hopper, and the feeding hopper comprises a feeding hopper enclosure positioned on the upper side of the feeding hopper, a feeding hopper conveying device positioned in the middle of the feeding hopper and a feeding hopper matching lifting device positioned on the lower side of the feeding hopper; the width of the feed hopper conveying device is smaller than the width of the inner space of the heavy sieve hopper; the feed hopper matching lifting device comprises a feed hopper matching lifting track square tube, a feed hopper matching lifting hinge hole and a feed hopper matching hinge plate; the track side pipe is lifted in the feeder hopper cooperation be located the both sides of feeder hopper, its length should be less than feeder hopper conveyor, and be provided with the feeder hopper cooperation at the tip and lift the hinge hole, and other end below is equipped with two feeder hopper cooperation articulated joints and is connected with whole chassis.

2. The construction waste primary screening heavy screening machine of claim 1, characterized in that: the bottom surface of the hopper box of the heavy sieve hopper is an isosceles trapezoid prism lacking an acute angle, and the top surface, the bottom surface and the side surface with the other waist as a bus are cut open; the vibrating motors are arranged on two sides of the hopper box of the heavy sieve hopper; the spring damping connecting devices are arranged at four corners of the heavy sieve hopper box and comprise spring damping upper connecting plates, damping springs and spring damping lower connecting plates; the spring shock absorption upper connecting plate is formed by welding four steel plates, wherein one fan-shaped steel plate is parallel to and fixed on the side surface of the heavy sieve hopper box, the other three steel plates are perpendicular to the fan-shaped steel plates, and the three steel plates form a whole while forming included angles with each other; the damping springs are connected with the spring damping upper connecting plate and the spring damping lower connecting plate, and the three damping springs are respectively connected with the spring damping upper connecting plate on three steel plates which form included angles with each other; the lower shock-absorbing connecting plate is formed by welding three steel plates, and each connecting plate is parallel to the upper spring-absorbing connecting plate and is positioned between the three steel plates with included angles; the whole guide rubber is of a tubular structure and has certain elasticity; the heavy screening hopper support comprises two heavy screening hopper support supporting beams which are in a 7 shape and are symmetrically distributed on two sides of a heavy screening hopper box and a square column-shaped heavy screening hopper support cross beam close to the 7-shaped head, and a heavy screening hopper support hinge hole used for being matched with the heavy screening hopper hinge hole is formed in the 7-shaped tail part of each heavy screening hopper support supporting beam; a convex part is arranged at the corner of the 7 shape, and a lifting long hole and a lifting groove are arranged on the convex part; the 7-shaped head is provided with a feed hopper adjusting hinge hole and a groove for the feed hopper adjusting hinge hole.

3. The construction waste primary screening heavy screening machine of claim 1, characterized in that: the connecting part comprises a lifting connecting part, a linkage connecting column, a random adjusting connecting part and a positioning pin column;

the lifting connecting component is matched with the linkage connecting column to enable the heavy sieve hopper to be linked with the feed hopper, and the lifting connecting component comprises a lifting push-pull rod, a lifting square positioning column, a lifting connecting plate, a lifting connecting pin shaft and a lifting positioning shaft; the lifting push-pull rod extends out of the elliptical hole in the top surface of the lifting connecting column until the lifting push-pull rod is fixed on the lifting connecting pin shaft; the lifting connecting plate fixes the lifting push-pull rod and the lifting square positioning column together; the length of the lifting connecting pin shaft does not exceed the outer side surfaces of the two lifting connecting plates; the length of the lifting positioning shaft must exceed the outer side surfaces of the two lifting connecting plates, and two end surfaces are respectively provided with a disc with the diameter larger than that of the middle part of the lifting positioning shaft; the clearance between the inner side surface of the lifting positioning shaft disc and the outer side surface of the lifting connecting plate is larger than the thickness left by a single side after the lifting groove is arranged on the support beam of the heavy sieve hopper support; the linkage connecting column extends into the groove for the feed hopper adjusting hinge hole from the feed hopper matched with the lifting track square tube and is hinged with the feed hopper adjusting hinge hole, and a row of non-equidistant through holes corresponding to the feed hopper matched lifting hinge hole are arranged on the side surface, namely linkage connecting column holes; each linkage connecting column hole corresponds to one lifting square positioning column hole; the two sets of random adjusting connecting components are a group and are used for connecting the fine material conveying mechanism, the material conveying mechanism to be crushed and the material conveying mechanism which does not need to be crushed with the integral chassis; each set of random adjusting connecting part comprises an L-shaped connecting rod and a cylindrical connecting rod; the short edge of the L-shaped connecting rod is hinged with the fine material conveying mechanism, the material conveying mechanism to be crushed and the material conveying mechanism not to be crushed, and the corresponding hinged objects are a fine material conveying belt connecting shaft, a material conveying belt connecting shaft to be crushed and a material conveying belt connecting shaft not to be crushed respectively; the middle of the long side of the L-shaped connecting rod is hollow, the L-shaped connecting rod can pass through the cylindrical connecting rod, and an L-shaped connecting rod hole is formed in the position where the L-shaped connecting rod is combined with the cylindrical connecting rod; one end of the cylindrical connecting rod is hinged with the base, corresponds to the fine material conveying mechanism, the material conveying mechanism to be crushed and the material conveying mechanism which does not need to be crushed, the hinged positions are respectively a fine material conveying mechanism connecting hole, a simply supported beam connecting hole and a material conveying mechanism connecting hole which does not need to be crushed, and the other end of the cylindrical connecting rod is provided with a row of equidistant through holes corresponding to the L-shaped connecting rod holes, namely the cylindrical connecting rod holes; the positioning pin columns are respectively plugged into the lifting square positioning column holes, the linkage connecting column holes and the cylindrical connecting rod holes when the lifting connecting part, the linkage connecting column and the random adjusting connecting part change the motion state to the required state.

4. The construction waste primary screening heavy screening machine of claim 1, characterized in that: the integral chassis comprises walking tracks which are bilaterally and symmetrically distributed on the lowest part of the integral chassis, a base which is positioned at the upper and lower central positions of the integral chassis, a triangular bracket which is bilaterally and symmetrically distributed at the rear part of the base, an arch bridge structure, a material collecting box which does not need to be crushed, a lifting connecting column, a bottom conveying frame fixing column and a power source which is arranged between a feed hopper matching hinge column and a fine material conveying mechanism mounting groove; the base comprises a material conveying mechanism mounting groove which is positioned at the rear of the base and does not need to be crushed, a material conveying mechanism connecting hole which is positioned at the left side of the base and does not need to be crushed, a bottom conveying mechanism mounting groove which is positioned at the position, close to the material conveying mechanism mounting groove, of the base, a fine material conveying mechanism mounting groove which is positioned at the front position of the base, and a fine material conveying mechanism connecting hole which is positioned at the right side of the base; the triangular support comprises a material conveying mechanism rotating hole at an upper position, a heavy sieve bucket hinge hole at an upper middle position and a bottom conveying mechanism fixing hole at a lower position; the arch bridge structure is positioned at the upper end of the triangular support, the triangular supports at two sides are connected, the simply supported beams which are symmetrical left and right extend backwards, and the simply supported beams are provided with simply supported beam connecting holes; the lifting connecting columns are symmetrically distributed at the rear positions of the fine material conveying mechanism mounting groove in the left-right direction, the top surfaces of the lifting connecting columns are oblique planes and are provided with elliptical holes and rectangular holes, and the side surfaces of the lifting connecting columns are provided with through holes, namely lifting connecting column holes; the bottom conveying frame fixing columns are located between the lifting connecting columns and the triangular supports and are distributed in a bilateral symmetry mode, and bottom conveying frame fixing holes matched with the bottom conveying mechanism are formed in the top ends of the bottom conveying frame fixing columns.

5. The construction waste primary screening heavy screening machine of claim 1, characterized in that: the fine material conveying mechanism is positioned in the middle of the integral chassis at a front position, extends towards the right side, and comprises a fine material conveying roller, a fine material conveying belt, a fine material conveying frame and a fine material collecting box with an inlet width larger than that of the bottom conveying mechanism; the fine material conveying mechanism is characterized in that the fine material collecting box is arranged on the upper side of the fine material conveying frame; the middle of the two sides of the fine material conveying frame, which is close to the length direction of the fine material conveying frame, is provided with a fine material conveying belt connecting shaft;

the bottom conveying mechanism is positioned at the rear part of the integral chassis and comprises a bottom conveying roller, a bottom conveying belt, a bottom conveying frame and a bottom collecting box; the bottom conveying roller and the two ends of the bottom conveying belt support the bottom conveying belt, the two ends of the bottom conveying belt are provided with U-shaped bottom conveying frames which surround the bottom conveying roller and the bottom conveying belt, a bottom collecting box is arranged above the U-shaped bottom position, the side surface of the U-shaped bottom position is hinged with a bottom conveying mechanism fixing hole, a bottom conveying belt connecting shaft is arranged in the middle of the bottom conveying frame in the length direction and close to the front position and matched with the bottom conveying frame fixing hole to fix the bottom conveying mechanism;

the material conveying mechanism to be crushed is positioned at the rear position of the integral chassis, extends backwards and comprises a material conveying roller to be crushed, a material conveying belt to be crushed, a material conveying frame to be crushed and a material collecting box to be crushed; the conveying rollers for the materials to be crushed support the conveying belts for the materials to be crushed at two ends of the conveying belts for the materials to be crushed in the length direction, U-shaped conveying frames for the materials to be crushed are arranged at two ends of the conveying belts for the materials to be crushed, the conveying rollers for the materials to be crushed and the conveying belts for the materials to be crushed are surrounded by the conveying rollers for the materials to be crushed, and a collecting box for the materials to be crushed is arranged above the U-shaped bottom; the material conveying frame to be crushed comprises a lifting positioning shaft and a crushed material conveying belt connecting shaft; the lifting positioning shafts are arranged on two sides of the material conveying frame to be crushed, and are hinged with the integral chassis at the rotating hole of the material conveying mechanism to be crushed below the material collecting box to be crushed; the material crushing conveyer belt connecting shafts are arranged on two sides of the material conveying frame to be crushed and are close to the material conveying belt connecting shaft to be crushed in the middle of the material conveying frame to be crushed in the length direction;

the material conveying mechanism which does not need to be crushed is positioned at the rear position of the whole chassis, and the material conveying mechanism to be crushed extends out to the left side between the chassis and the material conveying mechanism to be crushed, and comprises a material conveying roller which does not need to be crushed, a material conveying belt which does not need to be crushed and a material conveying frame which does not need to be crushed; the material conveying rollers which do not need to be crushed are three in number, two of the material conveying rollers are arranged in the material collecting box which does not need to be crushed, the axis direction of the material conveying rollers is parallel to the longitudinal direction of the base, and the material conveying rollers which do not need to be crushed and the other material conveying rollers which are close to the left side of the base are clamped by two material conveying frames which do not need to be crushed; the connecting shafts of the conveying belts of the materials which do not need to be crushed are arranged on two sides of the conveying frame of the materials which do not need to be crushed and are close to the middle of the conveying frame of the materials which do not need to be crushed in the length direction.

6. The construction waste primary screening heavy screening machine of claim 1, characterized in that: the feed hopper is matched with the hinged plate to clamp the feed hopper and is matched with the hinged column to be hinged with the feed hopper.

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