CN115155713A

CN115155713A - Reducing mechanism with bulky concrete caking screening and crushing function

Info

Publication number: CN115155713A
Application number: CN202210610087.9A
Authority: CN
Inventors: 唐福波; 李静
Original assignee: China Construction Second Engineering Bureau Co Ltd; First Construction Engineering Co Ltd of China Construction Second Engineering Bureau Co Ltd
Current assignee: China Construction Second Engineering Bureau Co Ltd; First Construction Engineering Co Ltd of China Construction Second Engineering Bureau Co Ltd
Priority date: 2022-05-31
Filing date: 2022-05-31
Publication date: 2022-10-11
Also published as: ZA202209887B

Abstract

The invention discloses a crushing device with functions of screening and crushing large-volume concrete agglomerates, which comprises a processing box, wherein a screening tank is rotatably arranged at the top of the processing box, the bottom of the screening tank extends into the processing box, and a screening mechanism is arranged in the screening tank; the screening mechanism comprises a semi-conical cover plate, a plurality of coarse holes, a plurality of fine holes, a cylinder, a plurality of blanking holes, a first outer gear ring, a first motor, a driving rod and a first gear, the semi-conical cover plate is fixedly arranged in the screening tank, the coarse holes are all formed in the semi-conical cover plate, and the fine holes are all formed in the bottom of the semi-conical cover plate; this reducing mechanism with bulky concrete caking screening and crushing function can select the great caking of volume alone in the building rubbish through the screening mechanism that sets up to can carry out preliminary breakage to it, can accelerate the crushing speed to the great rubbish of volume.

Description

Reducing mechanism with bulky concrete caking screening and crushing function

Technical Field

The invention relates to the technical field of construction waste, in particular to a crushing device with functions of screening and crushing large-volume concrete agglomerates.

Background

With the continuous development of the times, china has made a rapid development in the field of buildings, and meanwhile, whether the buildings are dismantled or built, a large amount of building wastes are generated, and the wastes are basically red bricks, reinforcing steel bars and other mixtures.

The invention discloses a crushing device with large-volume concrete caking screening and crushing functions, which comprises a processing frame, wherein the top of the processing frame is communicated with a feed inlet, one side of the processing frame, which is far away from the feed inlet, is communicated with a collecting frame, the outer side of the processing frame, which is close to the collecting frame, is provided with a bottom plate, the bottom of the bottom plate is uniformly provided with a supporting base, the outer side of the processing frame is fixedly connected with a driving motor, the output end of the driving motor is rotatably connected with a crushing roller through a rotating shaft, the inner wall of the processing frame, which is close to the crushing roller, is provided with a partition plate, the top of the partition plate is provided with a material conveying port, the top of the processing frame is provided with a hydraulic cylinder, and the bottom of the hydraulic cylinder penetrates through the processing frame and is connected with a telescopic rod. This a reducing mechanism with bulky concrete caking screening and crushing function has reached and has carried out the broken purpose of repeated many times to the great rubbish that is difficult to the breakage of volume, has improved the device's crushing efficiency, avoids the excessive breakage of the complete rubbish of breakage.

But have the weak point among the above-mentioned structure, the reducing mechanism who has bulky concrete caking screening and crushing function can't carry out preliminary screening to building rubbish when using, leads to the rubbish of different volume sizes to mix and carry out crushing treatment together, leads to crushing efficiency lower, influences the treatment effeciency to building rubbish.

Therefore, the invention provides a crushing device with functions of screening and crushing large-volume concrete lumps to solve the problems.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a crushing device with the functions of screening and crushing large-volume concrete lumps, and solves the problems.

In order to achieve the purpose, the invention is realized by the following technical scheme: a crushing device with functions of screening and crushing large-volume concrete lumps comprises a treatment box, wherein a screening tank is rotatably mounted at the top of the treatment box, the bottom of the screening tank extends into the treatment box, and a screening mechanism is arranged in the screening tank;

screening mechanism is including half toper cover plate, a plurality of gross porosity, a plurality of pore, drum, a plurality of blanking hole, first outer ring gear, first motor, actuating lever and first gear, half toper cover plate fixed mounting is in the screening jar, and is a plurality of the gross porosity is all seted up on half toper cover plate, and is a plurality of the bottom at half toper cover plate is all seted up to the pore, drum fixed mounting is in the bottom of half toper cover plate, the bottom of drum extends to outside the screening jar, and is a plurality of the blanking hole is all seted up on the screening jar, first outer ring gear fixed mounting is on the outer wall of screening jar, first motor fixed mounting is at the top inner wall of handling the case, actuating lever fixed mounting is on the output shaft of first motor, first gear fixed mounting is on the actuating lever, first gear and first outer ring gear meshing.

Preferably, the inner wall fixed mounting of screening jar has first annular slab, fixed mounting has the first broken oar of a plurality of symmetric distributions on the inner wall of first annular slab, the outer wall of drum rotates and installs annular connecting plate, the outer wall fixed mounting of annular connecting plate has the second annular slab, the outer wall fixed mounting of second annular slab has the broken oar of the second of a plurality of symmetric distributions, the bottom fixed mounting of annular connecting plate has interior ring gear, the outer wall fixed mounting of drum has the second motor, fixed mounting has the second gear on the output shaft of second motor, second gear and interior ring gear meshing can arrange the broken oar of pivoted second through the first broken oar that sets up and carry out preliminary broken handle to building rubbish.

Preferably, it has the supplementary piece of annular to handle incasement fixed mounting, the inner wall fixed mounting of the supplementary piece of annular has annular baffle, two arc openings have been seted up on the annular baffle, annular baffle's inner wall fixed mounting has the discharging pipe, in the bottom of drum rotated and extended to the discharging pipe, the supplementary piece of annular was the cubic object of circle shape in an foreign side, and it can arrange annular baffle in pairs and collect construction waste.

Preferably, the annular cavity has been seted up on the supplementary piece of annular, the ring channel has been seted up to the bottom inner wall of annular cavity, be provided with annular turning block in the ring channel, the top of annular turning block extends to in the annular cavity, fixed mounting has a plurality of symmetric distribution's scraper blade on the inner wall of annular turning block, the one end of scraper blade runs through the supplementary piece of annular, can drive construction waste through the rotatable scraper blade that sets up and remove to make it can follow the arc opening and drop to the below and carry out subsequent processing.

Preferably, fixed mounting has the outer ring gear of second on the outer wall of annular turning block, the bottom of actuating lever extends to the annular cavity, the actuating lever rotates with annular auxiliary block to be connected, the bottom fixed mounting of annular cavity has the third gear, the meshing of the outer ring gear of third gear and second makes it rotate under the indirect drive of actuating lever through the outer ring gear of second that sets up for the scraper blade can rotate.

Preferably, handle the incasement rotation and install four dwangs, the one end of dwang is rotated and is extended to outside handling the case, fixed mounting has the milling running roller on the dwang, one side outer wall fixed mounting who handles the case has the third motor, the output shaft of third motor and the one end fixed connection of the dwang that corresponds can carry out the secondary milling processing to building rubbish through the milling running roller that sets up.

Preferably, fixed mounting has synchronizing gear on the dwang, four two liang of mesh mutually between the synchronizing gear, corresponding two fixed mounting has linkage wheel, two on the dwang the winding has same belt between the linkage wheel, can make four dwang keep synchronous rotation through synchronizing gear and the linkage wheel that sets up, and two adjacent dwangs can keep the rotation of incorgruous simultaneously.

Preferably, it has trapezoidal sieve to handle incasement fixed mounting, the bottom fixed mounting of trapezoidal sieve has the fourth motor, fixed mounting has the cutting rod on the output shaft of fourth motor, the top of cutting rod is rotated and is run through trapezoidal sieve, fixed mounting has two L shape stirring rods on the cutting rod, can cut the processing to building rubbish through the cutting rod that sets up, screens through trapezoidal sieve simultaneously.

Preferably, the bottom fixed mounting who handles the case has row material pipe, the top fixed mounting who handles the case has L shape mounting bracket, fixed mounting has the stirring pole on the L shape mounting bracket, in the bottom of stirring pole extended to the screening jar, stirring building rubbish when the screening jar rotates through the stirring pole that sets up, made it can get into to drop from gross porosity and pore.

Preferably, the outer wall fixed mounting of drum has first annular dog, the outer wall fixed mounting of drum has second annular dog, the top fixed mounting of annular baffle has third annular dog, can avoid building rubbish to drop to being difficult to the clearance in the dead angle through first annular dog, second annular dog and the third annular dog that sets up.

Advantageous effects

The invention provides a crushing device with functions of screening and crushing large-volume concrete agglomerates. Compared with the prior art, the method has the following beneficial effects:

(1) This reducing mechanism with bulky concrete caking screening and crushing function can select the great caking of volume alone in the building rubbish through the screening mechanism that sets up to can carry out preliminary breakage to it, can accelerate the crushing speed to the great rubbish of volume.

(2) This reducing mechanism with bulky concrete caking screening and crushing function can drive the scraper blade through the annular turning block that sets up and remove rubbish for rubbish can drop to crushing roller through the arc opening and take turns to smash once more, can accelerate the crushing speed to the great rubbish of volume.

(3) This reducing mechanism with screening of bulky concrete caking and crushing function can filter and cut building rubbish through the trapezoidal sieve that sets up and cutting rod for the building rubbish that the volume meets the requirements directly falls down, and the building rubbish that does not meet the requirements carries out follow-up cutting breakage, reaches the screening requirement until it.

Drawings

FIG. 1 is a perspective view of the external structure of the present invention;

FIG. 2 is a front cross-sectional structural schematic view of the present invention;

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

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

FIG. 5 is an assembly view of the treatment tank, rotating rod, crushing roller, third motor, synchronizing gear, linkage wheel and belt of the present invention;

FIG. 6 is an assembly view of the annular rotor, scraper and second outer ring gear of the present invention;

FIG. 7 is an assembly view of the barrel, first annular plate, first crushing paddle, annular web, second annular plate, second crushing paddle, and inner toothed ring of the present invention;

FIG. 8 is an assembly drawing of the treatment tank, cylinder, annular auxiliary block, annular partition, arcuate port and discharge tube of the present invention.

In the figure: 1. a treatment tank; 2. a screening tank; 3. a half-cone cover plate; 4. coarse holes are formed; 5. fine pores; 6. a cylinder; 7. a blanking hole; 8. a first outer ring gear; 9. a first motor; 10. a drive rod; 11. a first gear; 12. a first annular plate; 13. a first crushing paddle; 14. an annular connecting plate; 15. a second annular plate; 16. a second crushing paddle; 17. an inner gear ring; 18. a second motor; 19. a second gear; 20. an annular auxiliary block; 21. an annular partition plate; 22. an arc-shaped through opening; 23. a discharge pipe; 24. an annular cavity; 25. an annular groove; 26. an annular turning block; 27. a squeegee; 28. a second outer ring gear; 29. a third gear; 30. rotating the rod; 31. grinding the roller; 32. a third motor; 33. a synchronizing gear; 34. a linkage wheel; 35. a belt; 36. a trapezoidal sieve plate; 37. a fourth motor; 38. cutting the rod; 39. an L-shaped stirring rod; 40. a discharge pipe; 41. an L-shaped mounting bracket; 42. a material poking rod; 43. a first annular stop; 44. a second annular stop.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The first embodiment is as follows:

referring to fig. 1, 2, 3 and 7, a crushing device with functions of screening and crushing mass concrete lumps comprises a treatment tank 1, a screening tank 2 is rotatably mounted at the top of the treatment tank 1, the bottom of the screening tank 2 extends into the treatment tank 1, and a screening mechanism is arranged in the screening tank 2;

the screening mechanism comprises a semi-conical cover plate 3, a plurality of coarse holes 4, a plurality of fine holes 5, a cylinder 6, a plurality of blanking holes 7, a first outer toothed ring 8, a first motor 9, a driving rod 10 and a first gear 11, wherein the semi-conical cover plate 3 is fixedly installed in the screening tank 2, the coarse holes 4 are all formed in the semi-conical cover plate 3, the fine holes 5 are all formed in the bottom of the semi-conical cover plate 3, the cylinder 6 is fixedly installed at the bottom of the semi-conical cover plate 3, the bottom end of the cylinder 6 extends out of the screening tank 2, the blanking holes 7 are all formed in the screening tank 2, the first outer toothed ring 8 is fixedly installed on the outer wall of the screening tank 2, the first motor 9 is fixedly installed on the inner wall of the top of the treatment tank 1, the driving rod 10 is fixedly installed on an output shaft of the first motor 9, the first gear 11 is fixedly installed on the driving rod 10, and the first gear 11 is meshed with the first outer toothed ring 8;

inner wall fixed mounting of screening jar 2 has first annular plate 12, fixed mounting has a plurality of symmetric distribution's first broken oar 13 on the inner wall of first annular plate 12, the outer wall of drum 6 rotates installs annular connecting plate 14, the outer wall fixed mounting of annular connecting plate 14 has second annular plate 15, the outer wall fixed mounting of second annular plate 15 has a plurality of symmetric distribution's the broken oar 16 of second, annular connecting plate 14's bottom fixed mounting has interior ring gear 17, the outer wall fixed mounting of drum 6 has second motor 18, fixed mounting has second gear 19 on the output shaft of second motor 18, second gear 19 and the meshing of interior ring gear 17.

Example two:

referring to fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, and fig. 8, the present embodiment provides a technical solution based on the first embodiment: an annular auxiliary block 20 is fixedly arranged in the treatment box 1, an annular partition plate 21 is fixedly arranged on the inner wall of the annular auxiliary block 20, two arc-shaped through holes 22 are formed in the annular partition plate 21, a discharge pipe 23 is fixedly arranged on the inner wall of the annular partition plate 21, and the bottom end of the cylinder 6 rotatably extends into the discharge pipe 23;

an annular cavity 24 is formed in the annular auxiliary block 20, an annular groove 25 is formed in the inner wall of the bottom of the annular cavity 24, an annular rotating block 26 is arranged in the annular groove 25, the top of the annular rotating block 26 extends into the annular cavity 24, a plurality of symmetrically-distributed scraping plates 27 are fixedly mounted on the inner wall of the annular rotating block 26, and one end of each scraping plate 27 penetrates through the annular auxiliary block 20;

a second external gear ring 28 is fixedly installed on the outer wall of the annular rotating block 26, the bottom end of the driving rod 10 extends into the annular cavity 24, the driving rod 10 is rotatably connected with the annular auxiliary block 20, a third gear 29 is fixedly installed at the bottom end of the annular cavity 24, and the third gear 29 is meshed with the second external gear ring 28;

four rotating rods 30 are rotatably mounted in the treatment box 1, one end of each rotating rod 30 rotatably extends out of the treatment box 1, a crushing roller 31 is fixedly mounted on each rotating rod 30, a third motor 32 is fixedly mounted on the outer wall of one side of the treatment box 1, and an output shaft of each third motor 32 is fixedly connected with one end of the corresponding rotating rod 30;

the rotating rods 30 are fixedly provided with synchronous gears 33, the four synchronous gears 33 are meshed with each other in pairs, the two corresponding rotating rods 30 are fixedly provided with linkage wheels 34, and the same belt 35 is wound between the two linkage wheels 34;

a trapezoidal sieve plate 36 is fixedly installed in the treatment box 1, a fourth motor 37 is fixedly installed at the bottom of the trapezoidal sieve plate 36, a cutting rod 38 is fixedly installed on an output shaft of the fourth motor 37, the top end of the cutting rod 38 penetrates through the trapezoidal sieve plate 36 in a rotating mode, and two L-shaped stirring rods 39 are fixedly installed on the cutting rod 38;

the bottom of the treatment box 1 is fixedly provided with a discharge pipe 40, the top of the treatment box 1 is fixedly provided with an L-shaped mounting rack 41, the L-shaped mounting rack 41 is fixedly provided with a material stirring rod 42, and the bottom end of the material stirring rod 42 extends into the screening tank 2;

a first annular stop block 43 is fixedly arranged on the outer wall of the cylinder 6, a second annular stop block 44 is fixedly arranged on the outer wall of the cylinder 6, and a third annular stop block is fixedly arranged on the top of the annular partition plate 21.

And those not described in detail in this specification are well within the skill of those in the art.

When the garbage screening device works, firstly, construction garbage is poured into the screening tank 2, then the first motor 9 is started, the first motor 9 drives the driving rod 10 to rotate, the driving rod 10 drives the first gear 11 and the third gear 29 to rotate, the first gear 11 drives the first outer gear ring 8 meshed with the first gear ring to rotate, the first outer gear ring 8 drives the screening tank 2 to rotate, the construction garbage in the screening tank 2 rotates along with the first gear ring, meanwhile, the material stirring rod 42 does not rotate, the material stirring rod 42 stirs the construction garbage, so that the construction garbage conforming to the size of the coarse hole 4 falls below the coarse hole 4, the construction garbage conforming to the size of the fine hole 5 falls into the cylinder 6, then falls into the discharging pipe 23, and finally falls onto the trapezoidal screen plate 36, at the moment, the fourth motor 37 is started, the fourth motor 37 drives the cutting rod 38 to rotate, the cutting rod 38 cuts the construction garbage, at the cutting rod 38 drives the L-shaped stirring rod 39 to rotate, the L-shaped garbage moving rod 39 stirs the construction garbage to enable the construction garbage to fall from the screen hole on the trapezoidal screen plate 36, and the construction garbage with smaller size can be cut earlier than the construction garbage with the larger stirring rod 39; starting a second motor 18, the second motor 18 driving a second gear 19 to rotate, the second gear 19 driving an inner toothed ring 17 engaged therewith to rotate, the inner toothed ring 17 driving an annular connecting plate 14 to rotate, the annular connecting plate 14 driving a second annular plate 15 to rotate, the second annular plate 15 driving a second crushing paddle 16 to rotate, so that when the construction waste falls between the first annular plate 12 and the second annular plate 15, the first crushing paddle 13 and the second crushing paddle 16 can primarily crush the waste, and then fall to the upper side of the annular partition plate 21 through a blanking hole 7, simultaneously a third gear 29 driving a second outer toothed ring 28 engaged therewith to rotate, the second outer toothed ring 28 driving an annular rotating block 26 to rotate, the annular rotating block 26 driving a scraper 27 to rotate, the scraper 27 extruding the construction waste to make it fall between two sets of rotating rods 31 on both sides through an arc-shaped through opening 22, at the moment, starting the third motor 32 driving the third motor 32 to drive a rotating rod 30 connected therewith to rotate, the rotating rod 30 driving a corresponding synchronous gear 33 to rotate, the other synchronous gear 33 driving another synchronous gear 33, and then driving another synchronous gear 34 to rotate another grinding roller 34, and then drive another grinding roller 34 to grind the building waste, and further grind the other side of the building waste, and the other side of the other grinding roller 34, and then the other side of the building waste is more easily crushed roller after the grinding roller is crushed building.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a reducing mechanism with bulky concrete caking screening and crushing function, is including handling case (1), its characterized in that: the top of the treatment box (1) is rotatably provided with a screening tank (2), the bottom of the screening tank (2) extends into the treatment box (1), and a screening mechanism is arranged in the screening tank (2);

screening mechanism is including half toper cover plate (3), a plurality of gross porosity (4), a plurality of pore (5), drum (6), a plurality of blanking hole (7), first outer ring gear (8), first motor (9), actuating lever (10) and first gear (11), half toper cover plate (3) fixed mounting is in screening jar (2), and is a plurality of gross porosity (4) are all seted up on half toper cover plate (3), and are a plurality of pore (5) are all seted up in the bottom of half toper cover plate (3), drum (6) fixed mounting is in the bottom of half toper cover plate (3), the bottom of drum (6) extends to outside screening jar (2), and is a plurality of blanking hole (7) are all seted up on screening jar (2), first outer ring gear (8) fixed mounting is on the outer wall of screening jar (2), first motor (9) fixed mounting is in the top inner wall of handling case (1), motor (10) fixed mounting is on first actuating lever (9), gear (11) outer ring gear (11) mesh on first actuating lever (11).

2. The crushing device with the function of screening and crushing the large-volume concrete lumps according to claim 1, characterized in that: the inner wall fixed mounting of screening jar (2) has first annular slab (12), fixed mounting has first broken oar (13) of a plurality of symmetric distributions on the inner wall of first annular slab (12), the outer wall of drum (6) rotates and installs annular connecting plate (14), the outer wall fixed mounting of annular connecting plate (14) has second annular slab (15), the outer wall fixed mounting of second annular slab (15) has broken oar (16) of a plurality of symmetric distributions's second, the bottom fixed mounting of annular connecting plate (14) has interior ring gear (17), the outer wall fixed mounting of drum (6) has second motor (18), fixed mounting has second gear (19) on the output shaft of second motor (18), second gear (19) and interior ring gear (17) meshing.

3. The crushing device with the functions of screening and crushing the massive concrete blocks as claimed in claim 1, wherein: handle case (1) internal fixed mounting and have supplementary piece of annular (20), the inner wall fixed mounting of supplementary piece of annular (20) has annular baffle (21), two arc opening (22) have been seted up on annular baffle (21), the inner wall fixed mounting of annular baffle (21) has discharging pipe (23), the bottom of drum (6) is rotated and is extended to in discharging pipe (23).

4. The smashing device with large-volume concrete block screening and crushing functions according to claim 3, wherein: the annular auxiliary block (20) is provided with an annular cavity (24), the bottom inner wall of the annular cavity (24) is provided with an annular groove (25), an annular rotating block (26) is arranged in the annular groove (25), the top of the annular rotating block (26) extends into the annular cavity (24), the inner wall of the annular rotating block (26) is fixedly provided with a plurality of symmetrically distributed scrapers (27), and one end of each scraper (27) penetrates through the annular auxiliary block (20).

5. The smashing device with large-volume concrete block screening and crushing functions according to claim 4, wherein: the outer wall of annular turning block (26) is gone up fixed mounting and is had second outer ring gear (28), the bottom of actuating lever (10) extends to in annular chamber (24), actuating lever (10) rotate with annular auxiliary block (20) and are connected, the bottom fixed mounting of annular chamber (24) has third gear (29), third gear (29) and the meshing of second outer ring gear (28).

6. The crushing device with the function of screening and crushing the large-volume concrete lumps according to claim 1, characterized in that: handle case (1) internal rotation and install four dwang (30), the one end of dwang (30) is rotated and is extended to outside handling case (1), fixed mounting has crushing running roller (31) on dwang (30), one side outer wall fixed mounting who handles case (1) has third motor (32), the output shaft of third motor (32) and the one end fixed connection of dwang (30) that corresponds.

7. The crushing device with the functions of screening and crushing the massive concrete blocks as claimed in claim 6, wherein: fixed mounting has synchronizing gear (33), four on dwang (30) two double-phase meshing between synchronizing gear (33), two that correspond fixed mounting has linkage wheel (34), two on dwang (30) the winding has same belt (35) between linkage wheel (34).

8. The crushing device with the function of screening and crushing the large-volume concrete lumps according to claim 1, characterized in that: handle case (1) internal fixed mounting and have trapezoidal sieve (36), the bottom fixed mounting of trapezoidal sieve (36) has fourth motor (37), fixed mounting has cutting rod (38) on the output shaft of fourth motor (37), the top of cutting rod (38) is rotated and is run through trapezoidal sieve (36), fixed mounting has two L shape stirring rod (39) on cutting rod (38).

9. The crushing device with the functions of screening and crushing the massive concrete blocks as claimed in claim 1, wherein: the bottom fixed mounting who handles case (1) has row material pipe (40), the top fixed mounting who handles case (1) has L shape mounting bracket (41), fixed mounting has group material pole (42) on L shape mounting bracket (41), the bottom of group material pole (42) extends to in the screening jar (2).

10. The smashing device with large-volume concrete block screening and crushing functions according to claim 3, wherein: the outer wall of the cylinder (6) is fixedly provided with a first annular stop block (43), the outer wall of the cylinder (6) is fixedly provided with a second annular stop block (44), and the top of the annular partition plate (21) is fixedly provided with a third annular stop block.