CN112934393B

CN112934393B - Material crushing mechanism for preparing reclaimed sand from waste concrete

Info

Publication number: CN112934393B
Application number: CN202110186848.8A
Authority: CN
Inventors: 路文梅; 许明超
Original assignee: Zaozhuang Chuangxin Runsheng Concrete Co ltd
Current assignee: Sanxiang Construction Shandong Technology Development Co ltd
Priority date: 2021-02-18
Filing date: 2021-02-18
Publication date: 2022-08-19
Anticipated expiration: 2041-02-18
Also published as: CN112934393A

Abstract

The invention relates to the technical field of concrete regeneration, in particular to a material crushing mechanism and a crushing method for preparing reclaimed sand from waste concrete; a servo motor is adopted to drive a driving disc to rotate, a sliding shaft on the driving disc rotates around the center of the disc, and the sliding rod is enabled to reciprocate left and right through matching with a straight hole; the sliding rod drives the first shaft to rotate through the transmission assembly, so that the crushing knife rotates in the screening box and crushes the waste concrete; the sliding rod drives the horizontal rod to move synchronously through the first rod, so that the upper wedge block positioned on the horizontal rod moves along with the horizontal rod; the lower wedge-shaped piece motion direction of both sides is opposite, and another descends when one rises, and further the stay cord through both sides is to the screening case effect like this, makes the screening case produce the swing, makes the discarded concrete in the screening case and produce the removal, strengthens on the one hand with broken subassembly's effect, and on the other hand also accelerates the efficiency of screen cloth screening.

Description

Material crushing mechanism for preparing reclaimed sand from waste concrete

Technical Field

The invention relates to the technical field of concrete regeneration, in particular to a material crushing mechanism and a crushing method for preparing regenerated sand from waste concrete.

Background

The concrete is artificial stone which is prepared by taking cement as a main cementing material, adding water, sand, stones and chemical additives and mineral admixtures if necessary, mixing the materials according to a proper proportion, uniformly stirring, densely molding, curing and hardening.

With the acceleration of economic construction and urbanization progress in China, the investment of the country on the infrastructure is increased year by year, and old buildings and old facilities in various regions are gradually dismantled, so that a large amount of waste concrete can be generated. At present, the main treatment method of the waste concrete in China is to bury the waste concrete underground, so that underground water resources are polluted, vegetation is damaged, and land subsidence is caused.

At present, people develop a kind of waste concrete recovery processing equipment, including the casing, set up the initiative crushing sword in the casing, set up the motor on the casing, the pivot of motor links to each other and drive initiative crushing sword rotates with the initiative crushing sword, when using in throwing into the casing with waste concrete, the initiative crushing sword rotates and makes waste concrete smash into the recycled sand that can recycle, and the material after smashing is through the screen cloth in order to sieve recycled sand and coarse aggregate.

In the prior art, chinese utility model patent with patent number 201922325877.9 discloses a concrete reclaimed sand preparation equipment, including the casing. Be provided with the broken inner chamber that is used for holding waste concrete in the casing, the casing is equipped with broken mechanism in broken inner chamber, broken mechanism is including setting up the cutter unit in the casing, cutter unit includes a plurality of crushing cutters and is used for fixing the connecting piece of adjacent crushing cutter, crushing cutter includes the pivot, and set up the initiative crushing blade on the pivot lateral wall, the bottom terminal surface of pivot is provided with the spout, the top terminal surface of pivot is provided with the bead with the shape looks adaptation of spout, the bead embedding of pivot or the spout of the adjacent pivot of roll-off are with fixed or release adjacent pivot in week, the connecting piece cup joints on adjacent crushing cutter junction with the prevention bead from the spout roll-off.

The utility model discloses a pair of cutter unit spare is connected for dismantling in concrete reclaimed sand preparation equipment, can carry out the pertinence to scrapping the blade and change to resources are saved.

However, the crushing knife, the driving part, the screen and the like of the patent all adopt a fixed position type design mode; when the crushing knife acts on the concrete, the contact direction is single, so that the concrete is easy to rotate under the action of the crushing knife to reduce the crushing effect; wherein the screen cloth is located the bottom, receives the concrete pile effect easily and produces the jam, influences the screening effect, causes the not unobstructed condition of unloading even.

Therefore, the inventor designs a material crushing mechanism and a crushing method for preparing reclaimed sand from waste concrete, and aims to solve the problems.

Disclosure of Invention

Technical problem to be solved

The invention aims to overcome the defects in the prior art and provides a material crushing mechanism and a material crushing method for preparing reclaimed sand from waste concrete.

(II) technical scheme

A material crushing mechanism for preparing reclaimed sand from waste concrete comprises a frame assembly, a driving assembly, a swinging assembly, a crushing assembly and a transmission assembly;

the frame component comprises a bottom plate, side plates, a top plate, an outer cylinder, a material guide plate, a material discharge pipe, a screening box and a material receiving box; a side plate is arranged at the right end of the bottom plate, and a top plate is arranged at the top end of the side plate; the outer cylinder is positioned above the bottom plate and connected to the left side of the side plate; the screening box is positioned in the outer barrel, and a material guide plate is also arranged in the outer barrel; the material guide plate is positioned below the screening box and is obliquely arranged in a manner of being lower at the left and higher at the right, and the material discharge pipe is connected with the left end of the outer cylinder corresponding to the lower end of the material guide plate; the material receiving box is arranged on the bottom plate corresponding to the material discharging pipe;

the top plate is provided with a swinging assembly, and the bottom end of the swinging assembly is connected with the screening box; the right side of the swinging component is connected with a driving component; the screening box is internally provided with a crushing assembly, and the crushing assembly is connected with the driving assembly through a transmission assembly.

Furthermore, the swing assembly comprises a fixing plate, a horizontal rod, an upper wedge block, a lower wedge block, a vertical rod, a first type of spring and a first type of pull rope;

the fixed plates are arranged on the top surface of the top plate at intervals from left to right, and the horizontal rods horizontally penetrate through the fixed plates; the horizontal rod is symmetrically provided with upper wedge blocks, lower wedge blocks are matched below the upper wedge blocks, and the bottom of each lower wedge block is connected with a vertical rod; the two vertical rods downwards penetrate through the top plate, and the bottom ends of the two vertical rods are correspondingly connected with the left top end and the right top end of the screening box through a pull rope; and a spring is connected between the lower wedge block and the top plate.

Furthermore, the driving component comprises a motor frame, a driving disc, a sliding shaft, a sliding rod, a linear hole, a first rod, a second rod and a rack;

the motor frame is connected to the top plate, a servo motor is arranged at the top end of the motor frame, and the output end of the servo motor is connected with a driving disc forwards; a sliding shaft is arranged at the eccentric position of the disc surface of the driving disc; the slide bar is positioned at the front side of the driving disc, the left side of the slide bar is connected with the right end of the horizontal rod through a first rod, and the bottom end of the slide bar is connected with a second rod; the sliding rod is provided with a straight hole, and the sliding shaft extends into the straight hole and is matched with the straight hole; the second rod penetrates through the top plate downwards, and the bottom end of the second rod is connected with a rack leftwards.

Furthermore, the crushing assembly comprises a screen, a mounting frame, a first shaft, a crushing cutter, a universal coupling and a spline shaft;

a screen is arranged at the bottom of the screening box, and a mounting frame is arranged on the screen; the bottom end of the first shaft is rotatably connected with the mounting frame, and the top end of the first shaft is connected with a spline shaft through a universal coupling; crushing knives are uniformly arranged on the lower section of the first shaft.

Furthermore, the transmission assembly comprises a driven gear, a second shaft, a transmission wheel set, a transmission belt and a shaft sleeve;

the driven gear is arranged at the bottom end of the second shaft and meshed with the rack; the top end of the driven gear is rotationally connected with the top plate through a bearing; the top end of the shaft sleeve is rotationally connected with the top plate through a bearing, and the spline shaft is upwards inserted into the shaft sleeve; the shaft sleeve and the second shaft are correspondingly provided with transmission wheel sets, and the transmission wheel sets are in transmission connection through a transmission belt.

Further, the device also comprises a material guide assembly; the material guiding component comprises a rope tying ring, a second pull rope and a limiting block;

the right end of the material guide plate is hinged with the inner wall of the outer cylinder; a rope tying ring is arranged on the right side of the screening box, the top end of the second pull rope is connected with the rope tying ring, and the bottom end of the second pull rope is connected with the stock guide; the lower section of the left side wall of the outer cylinder is arc-shaped, and the left end of the material guide plate is propped against the inner wall of the arc-shaped section; the inner wall of the left side of the outer barrel is further provided with a limiting block, and the limiting block is located below the material guide plate.

Further, the dust suppression device also comprises a dust suppression component; the dust settling assembly comprises a first piston cylinder, a first piston plate, a water suction pipe, a drain pipe and an atomizing nozzle;

the first piston cylinder is arranged on the left side of the left fixing plate, and a first piston plate moving left and right is arranged in the first piston cylinder; the left end of the horizontal rod extends into the first piston cylinder and is connected with the first piston plate; the left end of the first piston cylinder is connected with a water suction pipe, and the water suction pipe is provided with a first check valve for controlling water to flow into the first piston cylinder; the left end of the first piston cylinder is also connected with a drain pipe, and the drain pipe is provided with a second one-way valve for controlling water to flow out of the first piston cylinder; the drain pipe extends to screening case top and is provided with atomizer.

Further, the device also comprises a material receiving assembly; the material receiving assembly comprises a third rod, a second piston plate, a second piston cylinder, a communicating pipe, a third piston cylinder, a third piston plate and a fourth rod;

the second piston cylinder and the third piston cylinder are arranged on the left side of the side plate at intervals up and down, and the right ends of the second piston cylinder and the third piston cylinder are communicated through a communicating pipe; a second piston plate moving left and right is arranged in the second piston cylinder, and a third piston plate moving left and right is arranged in the third piston cylinder; one end of the third rod is connected with the rack, and the other end of the third rod horizontally extends into the second piston cylinder rightwards and is connected with the second piston plate; no. four rods are connected with on the left side of the piston plate III, extend out of the piston cylinder III leftwards and are detachably connected with the material receiving box.

Further, the area of the longitudinal section of the second piston cylinder is larger than that of the longitudinal section of the third piston cylinder.

Furthermore, the bottom of the material receiving box is provided with a roller, and the right side of the material receiving box is connected with an installation plate; the mounting plate and the fourth rod are correspondingly provided with mounting holes and are connected through locking bolts.

(III) advantageous effects

The invention provides a material crushing mechanism and a crushing method for preparing reclaimed sand from waste concrete, which have the following advantages:

1, a servo motor is adopted to drive a driving disc to rotate, a sliding shaft on the driving disc rotates around the circle center of the disc, and the sliding rod is enabled to reciprocate left and right through matching with a straight hole; the sliding rod drives the rack to move left and right through the second rod, so that the rack drives the driven gear to drive the second shaft to rotate; the second shaft drives the shaft sleeve to rotate through the transmission wheel set and the transmission belt; the shaft sleeve drives the spline shaft to rotate, and the spline shaft drives the first shaft to rotate through the universal coupling, so that the crushing knife rotates in the screening box and crushes the waste concrete;

2, the sliding rod drives the horizontal rod to move synchronously through the first rod, so that the upper wedge block on the horizontal rod moves along with the horizontal rod; the lower wedge block always props against the upper wedge block under the action of a spring, so that the lower wedge block is matched with the vertical rod to lift under the condition that the upper wedge block moves left and right; the lower wedge-shaped piece motion direction of both sides is opposite, and another descends when one rises, and further the stay cord through both sides is to the screening case effect like this, makes the screening case produce the swing, makes the discarded concrete in the screening case and produce the removal, strengthens on the one hand with broken subassembly's effect, and on the other hand also accelerates the efficiency of screen cloth screening. And wherein axle sleeve, integral key shaft, universal joint's cooperation can be adapted to the swing of screening case, makes broken subassembly can normally work.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only for the present invention and protect some embodiments, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a block diagram of the present invention;

FIG. 2 is a block diagram of another embodiment of the present invention;

FIG. 3 is a block diagram of the drive assembly and the transmission assembly;

FIG. 4 is a block diagram of the swing assembly and the transmission assembly;

FIG. 5 is a block diagram of a crushing assembly;

FIG. 6 is a block diagram of a material guiding assembly;

FIG. 7 is a block diagram of a dustfall assembly;

fig. 8 is a structural diagram of the receiving assembly;

fig. 9 is an enlarged view of fig. 8.

In the drawings, the components represented by the respective reference numerals are listed below:

1-frame component, 101-bottom plate, 102-side plate, 103-top plate, 104-outer barrel, 105-guide plate, 106-discharge pipe, 107-screening box, 108-material receiving box, 109-roller, 110-mounting plate, 111-locking bolt;

2-driving component, 201-motor frame, 202-driving disc, 203-sliding shaft, 204-sliding bar, 205-slotted hole, 206-first rod, 207-second rod and 208-rack;

3-swing component, 301-fixed plate, 302-horizontal rod, 303-upper wedge block, 304-lower wedge block, 305-vertical rod, 306-class spring, 307-class pull rope;

4-a crushing component, 401-a screen, 402-a mounting frame, 403-a first shaft, 404-a crushing knife, 405-a universal coupling and 406-a spline shaft;

5-a transmission assembly, 501-a driven gear, 502-a second shaft, 503-a transmission wheel set, 504-a transmission belt and 505-a shaft sleeve;

6-a material guide assembly, 601-a rope tying ring, 602-a second pull rope, 603-a limiting block;

7-dust settling component, 701-first piston cylinder, 702-first piston plate, 703-water suction pipe, 704-water discharge pipe and 705-atomizing spray head;

8-material receiving assembly, 801-third rod, 802-second piston plate, 803-second piston cylinder, 804-communicating pipe, 805-third piston cylinder, 806-third piston plate and 807-fourth rod.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood 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, belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, their indicated orientations or positional relationships are based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Moreover, the terms "first," "second," and "third," if any, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" should be interpreted broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.

Example 1

Referring to the attached drawings, the material crushing mechanism for preparing the reclaimed sand from the waste concrete comprises a frame assembly 1, a driving assembly 2, a swinging assembly 3, a crushing assembly 4 and a transmission assembly 5;

the frame component 1 comprises a bottom plate 101, a side plate 102, a top plate 103, an outer cylinder 104, a material guide plate 105, a material discharge pipe 106, a screening box 107 and a material receiving box 108; the right end of the bottom plate 101 is connected with a side plate 102, and the top end of the side plate 102 is connected with a top plate 103; the outer cylinder 104 is positioned above the bottom plate 101 and connected to the left side of the side plate 102; the screening box 107 is positioned in the outer cylinder 104, and a material guide plate 105 is also arranged in the outer cylinder 104; the material guide plate 105 is positioned below the screening box 107 and is obliquely arranged in a manner of being lower left and higher right, and the end of the outer cylinder 104, corresponding to the lower end of the material guide plate 105, is also connected with a material discharge pipe 106; the material receiving box 108 is arranged on the bottom plate 101 corresponding to the material discharging pipe 106;

the top plate 103 is provided with a swing component 3, and the bottom end of the swing component 3 is connected with a screening box 107; the right side of the swing component 3 is connected with a driving component 2; the screening box 107 is internally provided with a crushing assembly 4, and the crushing assembly 4 is connected with the driving assembly 2 through a transmission assembly 5.

Example 2

the frame component 1 comprises a bottom plate 101, a side plate 102, a top plate 103, an outer cylinder 104, a material guide plate 105, a material discharge pipe 106, a screening box 107 and a material receiving box 108; the right end of the bottom plate 101 is connected with a side plate 102, and the top end of the side plate 102 is connected with a top plate 103; the outer cylinder 104 is positioned above the bottom plate 101 and connected to the left side of the side plate 102; the screening box 107 is positioned in the outer cylinder 104, and a material guide plate 105 is fixedly connected in the outer cylinder 104; the material guide plate 105 is positioned below the screening box 107 and is obliquely arranged in a manner of being lower left and higher right, and the end of the outer cylinder 104, corresponding to the lower end of the material guide plate 105, is also connected with a material discharge pipe 106; the material receiving box 108 is arranged on the bottom plate 101 corresponding to the material discharging pipe 106;

the top plate 103 is provided with a swinging component 3, and the bottom end of the swinging component 3 is connected with a screening box 107; the right side of the swinging component 3 is connected with a driving component 2; the screening box 107 is internally provided with a crushing assembly 4, and the crushing assembly 4 is connected with the driving assembly 2 through a transmission assembly 5.

The swing assembly 3 comprises a fixing plate 301, a horizontal rod 302, an upper wedge 303, a lower wedge 304, a vertical rod 305, a first type of spring 306 and a first type of pull rope 307;

the fixing plate 301 is fixedly connected to the top surface of the top plate 103 at left and right intervals, and the horizontal rod 302 horizontally penetrates through the fixing plate 301; an upper wedge block 303 is symmetrically connected to the horizontal rod 302, a lower wedge block 304 is matched below the upper wedge block 303, and a vertical rod 305 is connected to the bottom of the lower wedge block 304; two vertical rods 305 downwards penetrate through the top plate 103, and the bottom ends of the two vertical rods are correspondingly connected with the left top end and the right top end of the screening box 107 through a pull rope 307; a type of spring 306 is also connected between the lower wedge block 304 and the top plate 103.

The driving component 2 comprises a motor frame 201, a driving disc 202, a sliding shaft 203, a sliding rod 204, a straight hole 205, a first rod 206, a second rod 207 and a rack 208;

the motor frame 201 is connected to the top plate 103, a servo motor is arranged at the top end of the motor frame 201, and the output end of the servo motor is connected with a driving plate 202 forwards; a sliding shaft 203 is fixedly connected to the eccentric position of the disc surface of the driving disc 202; the sliding rod 204 is positioned at the front side of the driving disc 202, the left side of the sliding rod is connected with the right end of the horizontal rod 302 through a first rod 206, and the bottom end of the sliding rod is connected with a second rod 207; the sliding rod 204 is provided with a straight hole 205, and the sliding shaft 203 extends into the straight hole 205 and is matched with the straight hole 205; the second rod 207 passes through the top plate 103 downward, and the bottom end is connected with a rack 208 leftward.

The crushing assembly 4 comprises a screen 401, a mounting frame 402, a first shaft 403, a crushing knife 404, a universal coupling 405 and a spline shaft 406;

a screen 401 is arranged at the bottom of the screening box 107, and a mounting frame 402 is fixed on the screen 401; the bottom end of the first shaft 403 is rotatably connected with the mounting frame 402, and the top end of the first shaft is connected with a spline shaft 406 through a universal coupling 405; the lower section of the first shaft 403 is uniformly connected with crushing knives 404.

The transmission assembly 5 comprises a driven gear 501, a second shaft 502, a transmission wheel set 503, a transmission belt 504 and a shaft sleeve 505;

the driven gear 501 is fixedly connected to the bottom end of the second shaft 502 and meshed with the rack 208; the top end of the driven gear 501 is rotatably connected with the top plate 103 through a bearing; the top end of the shaft sleeve 505 is rotationally connected with the top plate 103 through a bearing, and the spline shaft 406 is upwards inserted into the shaft sleeve 505; the shaft sleeve 505 and the second shaft 502 are correspondingly provided with a transmission wheel set 503, and the transmission wheel set 503 is in transmission connection through a transmission belt 504.

The following will describe a crushing method using this mechanism by taking this embodiment as an example:

putting the waste concrete to be treated into the screening box 107, and starting a servo motor to drive the driving disc 202 to rotate; the sliding shaft 203 on the driving disc 202 rotates around the center of the disc, and the sliding rod 204 reciprocates left and right through the matching with the straight hole 205;

the sliding rod 204 drives the rack 208 to move left and right through the second rod 207, so that the rack 208 drives the driven gear 501 to drive the second shaft 502 to rotate; the second shaft 502 drives the shaft sleeve 505 to rotate through the transmission wheel set 503 and the transmission belt 504; the shaft sleeve 505 drives the spline shaft 406 to rotate, and the spline shaft 406 drives the first shaft 403 to rotate through the universal coupling 405, so that the crushing knife 404 rotates in the screening box 107 and crushes the waste concrete;

the sliding rod 204 also drives the horizontal rod 302 to move synchronously through the first rod 206, so that the upper wedge-shaped block 303 on the horizontal rod 302 moves along with the horizontal rod; the lower wedge-shaped block 304 always props against the upper wedge-shaped block 303 due to the action of a spring 306, so that the lower wedge-shaped block 304 is matched with the vertical rod 305 to lift under the condition that the upper wedge-shaped block 303 moves left and right; referring to the drawing, the lower wedge blocks 304 on the two sides move in opposite directions, and when one lower wedge block moves up, the other lower wedge block moves down, so that the pulling ropes 307 on the two sides act on the screening box 107 further, the screening box 107 swings, waste concrete in the screening box 107 moves, the action of the crushing assembly 4 is enhanced, and the screening efficiency of the screen 401 is accelerated;

it should be noted that the shaft sleeve 505, the spline shaft 406, and the universal joint 405 are matched to adapt to the swing of the screening box 107, so that the crushing assembly 4 can work normally; specifically, the first shaft 403 synchronously swings along with the screening box 107, and has angular and interval displacements relative to the shaft sleeve 505; and the shaft sleeve 505 can always drive the crushing assembly 4 to work by utilizing the matching of the spline shaft 406 and the universal joint 405. The spline shaft 406 and the shaft sleeve 505 can still keep transmission after relative displacement, and the universal joint 405 ensures that the spline shaft 406 and the first shaft 403 can still keep transmission when the angles are changed.

The concrete reclaimed sand passing through the screen 401 falls on the material guide plate 105, is guided to the left end by the material guide plate 105 and is discharged from the discharge pipe 106, and finally falls into the material receiving box 108 to realize material receiving and collection.

Example 3

The difference from the embodiment 2 is that the material guide plate 105 in the embodiment is movable.

The device also comprises a material guide assembly 6; the material guiding component 6 comprises a rope fastening ring 601, a second pull rope 602 and a limiting block 603;

the right end of the material guide plate 105 is hinged with the inner wall of the outer cylinder 104; the right side of the screening box 107 is connected with a rope tying ring 601, the top end of a second pull rope 602 is connected with the rope tying ring 601, and the bottom end is connected with the stock guide 105; the lower section of the left side wall of the outer cylinder 104 is arc-shaped, and the left end of the material guide plate 105 props against the inner wall of the arc-shaped section; the inner wall of the left side of the outer cylinder 104 is further fixedly connected with a limiting block 603, and the limiting block 603 is located below the material guide plate 105.

Specifically, the right end of the material guide plate 105 is hinged, so that the material guide plate 105 always tends to rotate counterclockwise, and when the second pull rope 602 does not pull the material guide plate 105, the left end of the material guide plate 105 is supported by the limiting block 603 and is in a state of being low at the left and high at the right;

when the screening box 107 swings, the tether loop 601 also ascends or falls; when the tether ring 601 is lifted, the second pulling rope 602 is gradually tightened and pulls the material guide plate 105 to rotate clockwise, then the tether ring 601 descends, the second pulling rope 602 synchronously puts down the material guide plate 105, the material guide plate 105 rotates counterclockwise and collides with the limiting block 603, so that the concrete reclaimed sand on the material guide plate 105 vibrates, and the concrete reclaimed sand is accelerated to move to the left end and is discharged.

Example 4

On the basis of the above-described embodiment,

the dust settling device also comprises a dust settling component 7; the dust settling assembly 7 comprises a first piston cylinder 701, a first piston plate 702, a water suction pipe 703, a water drainage pipe 704 and an atomizing nozzle 705;

the first piston cylinder 701 is fixed on the left side of the left fixing plate 301, and a first piston plate 702 moving left and right is arranged in the first piston cylinder 701; the left end of the horizontal rod 302 extends into the first piston cylinder 701 and is connected with the first piston plate 702; the left end of the first piston cylinder 701 is connected with a suction pipe 703, and the suction pipe 703 is provided with a first check valve for controlling water to flow into the first piston cylinder 701; the left end of the first piston cylinder 701 is also connected with a drain pipe 704, and the drain pipe 704 is provided with a second check valve for controlling water to flow out of the first piston cylinder 701; a drain 704 extends above the screen box 107 and is fitted with an atomising spray 705.

Specifically, when the horizontal rod 302 moves left and right, the piston plate 702 is driven to move in the piston cylinder 701 synchronously, and the piston cylinder 701 automatically sucks water from the water suction pipe and discharges water to the water discharge pipe 704 through the two one-way valves, and then sprays water to the screening box 103 from the atomizing nozzle 705, so that dust is reduced.

Example 5

On the basis of the above-described embodiments,

the device also comprises a receiving component 8; the material receiving assembly 8 comprises a third rod 801, a second piston plate 802, a second piston cylinder 803, a communicating pipe 804, a third piston cylinder 805, a third piston plate 806 and a fourth rod 807;

the second piston cylinder 803 and the third piston cylinder 805 are fixed on the left side of the side plate 102 at intervals up and down, and the right ends of the two are communicated through a communication pipe 804; a second piston plate 802 moving left and right is arranged in the second piston cylinder 803, and a third piston plate 806 moving left and right is arranged in the third piston cylinder 805; one end of a third rod 801 is connected with the rack 208, and the other end of the third rod horizontally extends into the second piston cylinder 803 rightwards and is connected with a second piston plate 802; a fourth rod 807 is connected to the left side of the third piston plate 806, and the fourth rod 807 extends out of the third piston cylinder 805 to the left and is detachably connected with the material receiving box 108.

The bottom of the material receiving box 108 is provided with a roller 109, and the right side is connected with a mounting plate 110; the mounting plate 110 and the fourth rod 807 are correspondingly provided with mounting holes and connected through a locking bolt 111; thus, the detachable connection is realized through the locking bolt 111, and the subsequent transfer and material cleaning of the subsequent material receiving box 108 are facilitated.

Specifically, liquid is filled between the second piston plate 802 and the third piston plate 806; the rack 208 also drives the second piston plate 802 to move in the second piston cylinder 803 through the third rod 801, and due to pressure balance, the third piston plate 803 also synchronously moves left and right in the third piston cylinder 805, and drives the material receiving box 108 to move left and right through the fourth rod 807, so that uniform material receiving is realized.

It should be noted that, because the receiving amount is large, the moving range of the receiving box 108 is large in order to ensure uniform receiving; it is suggested that the second piston cylinder 803 and the third piston cylinder 805 meet the following requirement that the area of the longitudinal section of the second piston cylinder 803 is larger than that of the longitudinal section of the third piston cylinder 805, so that the moving distance of the third piston plate 806 is larger than that of the second piston plate 802, and the moving interval of the material receiving box 108 is increased.

It should be noted that the control method of the electrical components is the prior art, and is explained here in order to avoid redundancy of description; and the present invention is primarily intended to protect mechanical equipment, the control means and circuit connections will not be explained in detail herein.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A material crushing mechanism for preparing reclaimed sand from waste concrete is characterized by comprising a frame assembly (1), a driving assembly (2), a swinging assembly (3), a crushing assembly (4) and a transmission assembly (5);

the frame assembly (1) comprises a bottom plate (101), side plates (102), a top plate (103), an outer cylinder (104), a material guide plate (105), a material discharge pipe (106), a screening box (107) and a material receiving box (108); a side plate (102) is arranged at the right end of the bottom plate (101), and a top plate (103) is arranged at the top end of the side plate (102); the outer cylinder (104) is positioned above the bottom plate (101) and connected to the left side of the side plate (102); the screening box (107) is positioned in the outer cylinder (104), and a material guide plate (105) is also arranged in the outer cylinder (104); the material guide plate (105) is positioned below the screening box (107) and is obliquely arranged in a manner of being lower left and higher right, and the left end of the outer cylinder (104) corresponding to the lower end of the material guide plate (105) is also connected with a material discharge pipe (106); the material receiving box (108) is arranged on the bottom plate (101) corresponding to the material discharging pipe (106); the top plate (103) is provided with a swinging assembly (3), and the bottom end of the swinging assembly (3) is connected with a screening box (107); the right side of the swinging component (3) is connected with a driving component (2); a crushing assembly (4) is arranged in the screening box (107), and the crushing assembly (4) is connected with the driving assembly (2) through a transmission assembly (5); the swing assembly (3) comprises a fixing plate (301), a horizontal rod (302), an upper wedge block (303), a lower wedge block (304), a vertical rod (305), a first type of spring (306) and a first type of pull rope (307);

the fixing plates (301) are arranged on the top surface of the top plate (103) at left and right intervals, and the horizontal rods (302) horizontally penetrate through the fixing plates (301); the horizontal rod (302) is symmetrically provided with upper wedge blocks (303), lower wedge blocks (304) are matched below the upper wedge blocks (303), and the bottom of each lower wedge block (304) is connected with a vertical rod (305); two vertical rods (305) downwards penetrate through the top plate (103), and the bottom ends of the two vertical rods are correspondingly connected with the left top end and the right top end of the screening box (107) through a pull rope (307); a spring (306) is connected between the lower wedge block (304) and the top plate (103);

the driving component (2) comprises a motor frame (201), a driving disc (202), a sliding shaft (203), a sliding rod (204), a straight hole (205), a first rod (206), a second rod (207) and a rack (208); the motor frame (201) is connected to the top plate (103), a servo motor is arranged at the top end of the motor frame (201), and the output end of the servo motor is connected with a driving disc (202) forwards; a sliding shaft (203) is arranged at the eccentric position of the disc surface of the driving disc (202); the sliding rod (204) is positioned at the front side of the driving disc (202), the left side of the sliding rod is connected with the right end of the horizontal rod (302) through a first rod (206), and the bottom end of the sliding rod is connected with a second rod (207); the sliding rod (204) is provided with a straight hole (205), and the sliding shaft (203) extends into the straight hole (205) and is matched with the straight hole (205); the second rod (207) penetrates through the top plate (103) downwards, and the bottom end of the second rod is connected with a rack (208) leftwards;

the crushing assembly (4) comprises a screen (401), a mounting frame (402), a first shaft (403), a crushing knife (404), a universal coupling (405) and a spline shaft (406); a screen (401) is arranged at the bottom of the screening box (107), and a mounting frame (402) is arranged on the screen (401); the bottom end of the first shaft (403) is rotatably connected with the mounting frame (402), and the top end of the first shaft is connected with a spline shaft (406) through a universal coupling (405); crushing knives (404) are uniformly arranged on the lower section of the first shaft (403);

the transmission assembly (5) comprises a driven gear (501), a second shaft (502), a transmission wheel set (503), a transmission belt (504) and a shaft sleeve (505); the driven gear (501) is arranged at the bottom end of the second shaft (502) and is meshed with the rack (208); the top end of the driven gear (501) is rotatably connected with the top plate (103) through a bearing; the top end of the shaft sleeve (505) is rotationally connected with the top plate (103) through a bearing, and the spline shaft (406) is upwards inserted into the shaft sleeve (505); the shaft sleeve (505) and the second shaft (502) are correspondingly provided with transmission wheel sets (503), and the transmission wheel sets (503) are in transmission connection through a transmission belt (504).

2. The material crushing mechanism for preparing reclaimed sand from waste concrete according to claim 1, further comprising a material guide assembly (6); the material guiding assembly (6) comprises a rope tying ring (601), a second pull rope (602) and a limiting block (603); the right end of the material guide plate (105) is hinged with the inner wall of the outer barrel (104); a rope tying ring (601) is arranged on the right side of the screening box (107), the top end of a second pull rope (602) is connected with the rope tying ring (601), and the bottom end of the second pull rope is connected with the stock guide (105); the lower section of the left side wall of the outer barrel (104) is arc-shaped, and the left end of the material guide plate (105) is propped against the inner wall of the arc-shaped section; the inner wall of the left side of the outer barrel (104) is further provided with a limiting block (603), and the limiting block (603) is located below the material guide plate (105).

3. The material crushing mechanism for preparing reclaimed sand from waste concrete according to claim 2, further comprising a dust fall assembly (7); the dust settling assembly (7) comprises a first piston cylinder (701), a first piston plate (702), a water suction pipe (703), a water drainage pipe (704) and an atomizing nozzle (705); the first piston cylinder (701) is arranged on the left side of the left fixing plate (301), and a first piston plate (702) moving left and right is arranged in the first piston cylinder (701); the left end of the horizontal rod (302) extends into the first piston cylinder (701) and is connected with the first piston plate (702); the left end of the first piston cylinder (701) is connected with a water suction pipe (703), and the water suction pipe (703) is provided with a first check valve for controlling water to flow into the first piston cylinder (701); the left end of the first piston cylinder (701) is also connected with a water drain pipe (704), and the water drain pipe (704) is provided with a second check valve for controlling water to flow out of the first piston cylinder (701); the drain pipe (704) extends to the upper part of the screening box (107) and is provided with an atomizing spray head (705).

4. The material crushing mechanism for preparing the reclaimed sand from the waste concrete according to claim 3, which is characterized by further comprising a material receiving assembly (8); the material receiving assembly (8) comprises a third rod (801), a second piston plate (802), a second piston cylinder (803), a communicating pipe (804), a third piston cylinder (805), a third piston plate (806) and a fourth rod (807); the second piston cylinder (803) and the third piston cylinder (805) are arranged on the left side of the side plate (102) at intervals up and down, and the right ends of the two are communicated through a communication pipe (804); a second piston plate (802) moving left and right is arranged in the second piston cylinder (803), and a third piston plate (806) moving left and right is arranged in the third piston cylinder (805); one end of the third rod (801) is connected with the rack (208), and the other end of the third rod horizontally extends into the second piston cylinder (803) rightwards and is connected with the second piston plate (802); the left side of the third piston plate (806) is connected with a fourth rod (807), and the fourth rod (807) extends out of the third piston cylinder (805) leftwards and is detachably connected with the material receiving box (108).

5. The material crushing mechanism for preparing reclaimed sand from waste concrete according to claim 4, wherein the area of the longitudinal section of the second piston cylinder (803) is larger than the area of the longitudinal section of the third piston cylinder (805).

6. The material crushing mechanism for preparing reclaimed sand from waste concrete according to claim 5, wherein the bottom of the material receiving box (108) is provided with rollers (109), and the right side of the material receiving box is connected with a mounting plate (110); the mounting plate (110) and the fourth rod (807) are correspondingly provided with mounting holes and are connected through a locking bolt (111).