Building waste stone crushing device

Abstract

The utility model discloses a building waste stone crushing device in the technical field of building equipment, which comprises a crushing box, a first motor, a screening device and a vibrating device, the inner side wall of the crushing box is provided with a rotary drum through a connecting shaft, and the outer side wall of the rotary drum is welded with a plurality of material distribution plates at equal angles; according to the building waste stone crushing device, a vibration device is installed at the bottom of the crushing box, a second motor in the vibration device drives a cam to rotate through a driving shaft, the right end of a first screen plate can vibrate up and down in the vertical direction, and vibration of the first screen plate drives a second screen plate to vibrate through a connecting rod; and the crushed stones fall onto the first sieve plate, the large-size stones are intercepted on the surface of the first sieve plate, and the small-size stones fall onto the second sieve plate through the discharge holes in the first sieve plate to be screened again, so that the crushed stones can be screened in different specifications in the discharge process, and the classification efficiency of the stones is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of construction equipment, in particular to a construction waste stone crushing device. Background Art

[0002] Stone particles are used in infrastructure construction such as road construction and bridge construction, and the uniformity of these stone particles often determines the quality of engineering construction. Therefore, how to produce products with uniform particle size in the production process of construction stones has become the focus of researchers' research and development. At present, construction waste stone crushing equipment is used to crush larger stones into the required size, which is convenient for further processing and use in the later stage.

[0003] After the existing large stones are crushed, the stones are of different sizes, which are mixed and discharged together. In the subsequent use, the material divider needs to be used again. For this reason, a new technical solution needs to be designed to solve the problem. Utility Model Content

[0004] The purpose of the utility model is to provide a device for crushing construction waste stones, so as to solve the problem in the above-mentioned background technology that after crushing large stones, the stones produced are of different sizes, which are mixed with each other and discharged in a concentrated manner, and when used subsequently, a classifier needs to be used again for classifying.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a construction waste stone crushing device, comprising a crushing box, a first motor, a screening device and a vibrating device, the inner wall of the crushing box is equipped with a rotating drum through a connecting shaft, the outer wall of the rotating drum is welded with a plurality of dividing plates at equal angles, the middle part of the inner cavity of the crushing box is rotatably connected to two crushing rollers through a bearing, the ends of the two crushing rollers are meshed and connected by gears, the first motor is fixed to the outer wall of the crushing box by bolts and is keyed to the crushing roller, and the crushing roller is connected to the rotating drum through a connecting device; the screening device is located below the inner cavity of the crushing box, and the screening device comprises a first sieve plate, A connecting rod and a second sieve plate, the first sieve plate is located below the crushing roller, the second sieve plate is connected to the first sieve plate through the connecting rod, and the ends of the first sieve plate and the second sieve plate are rotatably connected to the inner wall of the crushing box through a rotating shaft; the vibration device is located below the first sieve plate, and the vibration device includes a second motor, a drive shaft and a cam, two mounting plates are welded to the outer side wall of the crushing box, the drive shaft passes through the two mounting plates, the second motor is fixedly connected to the outer side wall of one of the mounting plates by bolts, the second motor is keyed to the drive shaft, and the cam is clamped to the outer side wall of the drive shaft and contacts with the bottom of the first sieve plate.

[0006] In order to utilize the rotation of the crushing roller to assist in driving the rotation of the rotating drum, as a preferred construction waste stone crushing device of the utility model, the connecting device includes a groove wheel, a rotating shaft, a dial and a cylindrical pin, the groove wheel is connected to the connecting shaft key, the outer wall of the groove wheel is provided with a slot, the rotating shaft is rotatably connected to the outer wall of the crushing box through bearing 2, the dial is connected to the rotating shaft key, the cylindrical pin is welded to the outer wall of the dial, the dial can be in rotational contact with the groove wheel, the cylindrical pin can be stuck in the slot, and the rotating shaft is connected to one of the crushing rollers through a synchronous belt.

[0007] In order to absorb the dust generated by the stones entering the crushing box, as a preferred construction waste stone crushing device of the utility model, the interior of the rotating drum is a hollow structure, and the outer wall of the rotating drum is evenly provided with dust suction holes. The outer wall of the crushing box is fixedly connected to a vacuum pump, and the vacuum pump is connected to the inner cavity of the rotating drum through a connecting pipe, and a filter bag is mounted at the air outlet of the vacuum pump.

[0008] In order to facilitate the export of crushed stones according to corresponding size specifications, as a preferred construction waste stone crushing device of the utility model, the outer side walls of the crushing box are respectively provided with a first discharge port, a second discharge port and a third discharge port, the end of the first screen plate extends from the third discharge port, and the end of the second screen plate extends from the first discharge port.

[0009] In order to prevent stones from falling from the gap between the block and the inner wall of the crushing box, as a preferred construction waste stone crushing device of the utility model, two symmetrically distributed blocks are fixedly connected to the inner wall of the crushing box, and the side walls of the blocks are provided with arc surfaces, and the end of the rotating shaft is in contact with the arc surfaces.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows: the setting of the construction waste stone crushing device is reasonable in structural design, and a vibration device is installed at the bottom of the crushing box. The second motor in the vibration device drives the cam to rotate through the driving shaft, so that the right end of the first screen plate can vibrate up and down in the vertical direction. The vibration of the first screen plate drives the second screen plate to vibrate through the connecting rod, and the crushed stones fall onto the first screen plate. The large-sized stones are intercepted on the surface of the first screen plate, and the small-sized stones fall onto the second screen plate through the discharge holes in the first screen plate for re-screening, so that the crushed stones can be screened into different specifications during the discharge process to improve the stone classification efficiency.

[0011] By installing a connecting device above the inner cavity of the crushing box, multiple dividing plates are welded at equal angles on the outer wall of the rotating drum in the connecting device, and a storage chamber is formed between two adjacent dividing plates, the amount of stone falling can be controlled at a single time. The crushing roller drives the groove wheel to rotate through the synchronous belt and the dial to drive the rotation of the rotating drum. The rotation of the rotating drum is used to divide the stones in the crushing box to avoid blockage caused by the concentrated falling of stones and affect the efficiency of stone crushing. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a left-side structural schematic diagram of the utility model;

[0013] Figure 2 It is a right side structural schematic diagram of the utility model;

[0014] Figure 3 This is a schematic diagram of the internal structure of the crushing box of the utility model;

[0015] Figure 4 This is a schematic diagram of the rotation structure of the crushing roller of the utility model;

[0016] Figure 5 This is a schematic diagram of the structure of the connecting device of the utility model.

[0017] In the figure: 1. crushing box; 11. rotating drum; 111. dividing plate; 112. connecting shaft; 12. crushing roller; 121. gear; 2. first motor; 3. vacuum pump; 4. connecting device; 41. groove wheel; 42. rotating shaft; 43. dial; 44. cylindrical pin; 45. dust suction hole; 5. screening device; 51. first screen plate; 52. connecting rod; 53. second screen plate; 6. vibration device; 61. second motor; 62. driving shaft; 63. cam; 7. block; 8. first discharge port; 9. second discharge port; 10. third discharge port. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-5A construction waste stone crushing device comprises a crushing box 1, a first motor 2, a screening device 5 and a vibrating device 6. A rotating drum 11 is installed on the inner wall of the crushing box 1 through a connecting shaft 112. The connecting shaft 112 penetrates the outer wall of the crushing box 1. The rotating drum 11 is welded to the connecting shaft 112. A plurality of material dividing plates 111 are welded at equal angles on the outer wall of the rotating drum 11. Two crushing rollers 12 are rotatably connected to the middle part of the inner cavity of the crushing box 1 through a bearing. The ends of the two crushing rollers 12 are meshed and connected through a gear 121. The gear 121 is key-connected to the crushing roller 12. The first motor 2 is fixed to the outer wall of the crushing box 1 through bolts and is key-connected to a crushing roller 12. The crushing roller 12 is connected to the rotating drum 11 through a connecting device 4.

[0020] In this technical solution, the crushing box 1 is used to provide installation points for the installation of various parts, the first motor 2 is used to drive the crushing roller 12 to rotate, and the other crushing roller 12 is driven to rotate through two gears 121, so that the two crushing rollers 12 rotate in opposite directions, and the stone falls to the middle of the two crushing rollers 12 and is squeezed and crushed. The coordinated use of the dividing plate 111, the rotating drum 11 and the connecting shaft 112 can divide the stone and control the amount of stone falling.

[0021] The screening device 5 is located below the inner cavity of the crushing box 1, and includes a first screen plate 51, a connecting rod 52 and a second screen plate 53. The first screen plate 51 is located below the crushing roller 12, and the second screen plate 53 is connected to the first screen plate 51 through the connecting rod 52. The ends of the first screen plate 51 and the second screen plate 53 are rotatably connected to the inner wall of the crushing box 1 through a rotating shaft. The first screen plate 51 and the second screen plate 53 are respectively provided with discharge holes, and the diameter of the discharge hole inside the first screen plate 51 is larger than the diameter of the discharge hole inside the second screen plate 53.

[0022] In this technical solution, the first screen plate 51, the connecting rod 52 and the second screen plate 53 are connected as a whole and move synchronously to vibrate the crushed stones, thereby screening stones of different sizes and specifications and flowing them out from different discharge ports.

[0023] The vibration device 6 is located below the first sieve plate 51 , and the vibration device 6 includes a second motor 61 , a drive shaft 62 and a cam 63 . Two mounting plates are welded to the outer wall of the crushing box 1 , and the drive shaft 62 passes through the two mounting plates. The second motor 61 is fixedly connected to the outer wall of one mounting plate by bolts, and the second motor 61 is key-connected to the drive shaft 62 . The cam 63 is clamped to the outer wall of the drive shaft 62 and contacts the bottom of the first sieve plate 51 .

[0024] In this technical solution, the second motor 61 drives the cam 63 to rotate via the drive shaft 62. Since the cam 63 is an irregular shape, when different locations of the outer wall of the cam 63 contact the bottom surface of the first sieve plate 51, the first sieve plate 51 can be controlled to vibrate up and down in the vertical direction.

[0025] In some technical solutions, reference Figure 2 , Figure 3 and Figure 5 The connecting device 4 includes a groove wheel 41, a rotating shaft 42, a dial 43 and a cylindrical pin 44. The groove wheel 41 is connected with the connecting shaft 112 by a key. A slot is opened on the outer wall of the groove wheel 41. The rotating shaft 42 is rotatably connected with the outer wall of the crushing box 1 through a second bearing. The dial 43 is connected with the rotating shaft 42 by a key. The cylindrical pin 44 is welded to the outer wall of the dial 43. The dial 43 can be in rotational contact with the groove wheel 41. The cylindrical pin 44 can be stuck in the slot. The rotating shaft 42 is connected with one of the crushing rollers 12 through a synchronous belt. A rotating wheel is respectively clamped on the outside of the rotating shaft 42 and the crushing roller 12, and the two rotating wheels are connected by a synchronous belt.

[0026] In this technical solution, since a storage chamber of fixed volume is formed between the two adjacent dividing plates 111 and the rotating drum 11, after the dial 43 rotates one circle, the cylindrical pin 44 is stuck in the slot. The cylindrical pin 44 pushes the groove wheel 41, so that the groove wheel 41 and the rotating drum 11 rotate synchronously. The rotating drum 11 can only rotate in one direction until the dial 43 rotates out of the slot. Each rotation of the rotating drum 11 causes the stone in the storage chamber to fall to the middle of the two crushing rollers 12.

[0027] In some technical solutions, reference Figure 3-5 The interior of the drum 11 is a hollow structure, and dust suction holes 45 are evenly opened on the outer wall of the drum 11. The outer wall of the crushing box 1 is fixedly connected to the vacuum pump 3, and the vacuum pump 3 is connected to the inner cavity of the drum 11 through a connecting pipe. The end of the connecting pipe passes through the connecting shaft 112 and extends into the inner cavity of the drum 11. The outer wall of the connecting pipe is rotatably connected to the inner wall of the connecting shaft 112 through a bearing three, and a filter bag is sleeved at the air outlet of the vacuum pump 3.

[0028] In this technical solution, after the vacuum pump 3 starts working, it generates suction in the inner cavity of the drum 11 through the connecting pipe. When the stone falls in the inner cavity of the crushing box 1, dust will be generated, and the stone will also generate dust when it is crushed. At this time, the dust enters the inner cavity of the drum 11 with the air flow and causes filtration in the filter bag.

[0029] In some technical solutions, reference Figure 1-2The outer side walls of the crushing box 1 are respectively provided with a first discharge port 8, a second discharge port 9 and a third discharge port 10, the end of the first sieve plate 51 extends from the third discharge port 10, and the first sieve plate 51 is inclined to the third discharge port 10, and the end of the second sieve plate 53 extends from the first discharge port 8, and the second sieve plate 53 is inclined to the third discharge port 10.

[0030] In this technical solution, the first sieve plate 51 and the second sieve plate 53 are used to screen the crushed stones, so that stones of different specifications flow outward.

[0031] In some technical solutions, reference Figure 4 Two symmetrically distributed stoppers 7 are fixedly connected to the inner side wall of the crushing box 1. The side wall of the stopper 7 is provided with an arc surface, and the end of the rotating shaft 42 contacts the arc surface.

[0032] In this technical solution, the block 7 can be used to block the gap between the rotating shaft 42 and the inner wall of the crushing box 1 to prevent the stone from falling from the gap between the rotating shaft 42 and the crushing box 1 to the middle of the two crushing rollers 12 without being divided.

[0033] Working principle: first connect the first motor 2, the vacuum pump 3 and the second motor 61 to the external control device and the power supply, then put the stone into the feed port on the top of the crushing box 1, and the vacuum pump 3 generates suction inside the drum 11 through the connecting pipe to extract the dust generated when the stone falls. At this time, a part of the stone enters the storage chamber composed of the dividing plate 111 and the drum 11, and the first motor 2 drives the crushing roller 12 to rotate. The crushing roller 12 drives the other crushing roller 12 to rotate in the opposite direction through two gears 121. Since the crushing roller 12 drives the rotating shaft 42 and the dial 43 to rotate through the synchronous belt, the cylindrical pin 44 rotates to the slot on the outer wall of the groove wheel 41, and the cylindrical pin 44 pushes the groove wheel 41. At this time, the groove wheel 41 and the drum 11 rotate synchronously, driving the storage The stone in the chamber rotates and falls in the middle of the two crushing rollers 12. After the cylindrical pin 44 is separated from the groove wheel 41, the drum 11 stops rotating, and the stone fills the storage chamber at the next station. After the material is discharged from the previous station, it falls in the middle of the two crushing rollers 12. The reverse rotation of the two crushing rollers 12 can squeeze and crush the stone. The crushed stone falls on the first screen plate 51, and the first screen plate 51 is vibrated up and down in the vertical direction by the second motor 61, the drive shaft 62 and the cam 63. At this time, the first screen plate 51 drives the second screen plate 53 to vibrate synchronously through the connecting rod 52, and the discharge hole is used to screen the stones of different sizes. The screened stones are discharged from the first discharge port 8, the second discharge port 9 and the third discharge port 10 respectively.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0035] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A construction waste stone crushing device, characterized by: The invention comprises a crushing box (1), a first motor (2), a screening device (5) and a vibrating device (6); the inner wall of the crushing box (1) is provided with a rotating drum (11) via a connecting shaft (112); the outer wall of the rotating drum (11) is welded with a plurality of material dividing plates (111) at equal angles; the middle part of the inner cavity of the crushing box (1) is rotatably connected to two crushing rollers (12) via a bearing; the ends of the two crushing rollers (12) are meshed and connected via gears (121); the first motor (2) is fixed to the outer wall of the crushing box (1) via bolts and is key-connected to the crushing roller (12); the crushing roller (12) is connected to the rotating drum (11) via a connecting device (4); The screening device (5) is located below the inner cavity of the crushing box (1), and comprises a first screen plate (51), a connecting rod (52), and a second screen plate (53); the first screen plate (51) is located below the crushing roller (12); the second screen plate (53) is connected to the first screen plate (51) via the connecting rod (52); and the ends of the first screen plate (51) and the second screen plate (53) are rotatably connected to the inner wall of the crushing box (1) via a rotating shaft; The vibration device (6) is located below the first sieve plate (51), and the vibration device (6) includes a second motor (61), a drive shaft (62) and a cam (63). Two mounting plates are welded to the outer side wall of the crushing box (1), and the drive shaft (62) passes through the two mounting plates. The second motor (61) is fixedly connected to the outer side wall of one of the mounting plates by bolts. The second motor (61) is key-connected to the drive shaft (62), and the cam (63) is engaged with the outer side wall of the drive shaft (62) and contacts the bottom of the first sieve plate (51).

2. The construction waste stone crushing device according to claim 1, characterized in that: The connecting device (4) comprises a groove wheel (41), a rotating shaft (42), a dial (43) and a cylindrical pin (44); the groove wheel (41) is key-connected to the connecting shaft (112); a slot is provided on the outer wall of the groove wheel (41); the rotating shaft (42) is rotationally connected to the outer wall of the crushing box (1) via a second bearing; the dial (43) is key-connected to the rotating shaft (42); the cylindrical pin (44) is welded to the outer wall of the dial (43); the dial (43) can be in rotational contact with the groove wheel (41); the cylindrical pin (44) can be stuck in the slot; the rotating shaft (42) is connected to one of the crushing rollers (12) via a synchronous belt.

3. The construction waste stone crushing device according to claim 1, characterized in that: The interior of the rotating drum (11) is a hollow structure, and dust suction holes (45) are evenly opened on the outer wall of the rotating drum (11). The outer wall of the crushing box (1) is fixedly connected to an air extractor (3), and the air extractor (3) is connected to the inner cavity of the rotating drum (11) through a connecting pipe. A filter bag is sleeved at the air outlet of the air extractor (3).

4. The construction waste stone crushing device according to claim 1, characterized in that: The outer side wall of the crushing box (1) is respectively provided with a first discharge port (8), a second discharge port (9) and a third discharge port (10); the end of the first sieve plate (51) extends from the third discharge port (10), and the end of the second sieve plate (53) extends from the first discharge port (8).

5. The construction waste stone crushing device according to claim 1, characterized in that: Two symmetrically distributed stoppers (7) are fixedly connected to the inner side wall of the crushing box (1); the side walls of the stoppers (7) are provided with arcuate surfaces, and the end of the rotating shaft (42) contacts the arcuate surfaces.

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