Screening device for building waste regeneration machine-made sand

Abstract

The utility model discloses a screening device for building waste regeneration machine-made sand, and relates to the technical field of waste recovery, the screening device comprises a cylinder body, the outer side of the cylinder body is fixedly connected with a support frame, the left side of the cylinder body is fixedly connected with a material placing table, and a crushing mechanism is movably installed at the position, close to the upper side, of the inner side of the material placing table; a discharging mechanism is fixedly connected to the position, close to the lower side, of the inner side of the discharging table in a sleeving mode, a screening mechanism is rotationally connected to the inner side of the barrel, and a discharging opening is formed in the position, close to the right side, of the lower side of the barrel. According to the screening device for the building waste regeneration machine-made sand, the sealing plate is driven by the first motor to rotate in a reciprocating mode, the bearing plate is intermittently sealed by the sealing plate, the sealing plate and the bearing plate are jointly controlled to conduct intermittent discharging operation, and due to the fact that the bearing plate and the sealing plate are in a straight-up and straight-down discharging mode, the discharging efficiency is greatly improved; and the influence of rotating operation on the inner wall of the discharging table or other parts is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of waste recycling, in particular to a screening device for regenerating machine-made sand from construction waste. Background Art

[0002] Artificial sand refers to sand processed by sand making machines and other auxiliary equipment. The use of artificial sand can not only save energy and protect the environment, but also save raw material costs for customers. Compared with natural sand, the cost of artificial sand is reduced by 50%. The performance of premixed mortar produced with high-quality artificial sand is better than that of natural sand. Artificial sand often has sand of different rules and sizes during the production process, and sand of different rules and sizes has different requirements in different processes, so the processed artificial sand needs to be screened and classified.

[0003] Chinese patent document CN219702665U discloses a device for screening construction waste recycled sand, wherein the screening box is rotatably connected to the screening plate via a rotating shaft, an eccentric seat is provided at the top of the plate frame of the screening plate, a vibration spring fixedly connected to the screening box is provided above the support of the eccentric seat, and an eccentric wheel corresponding to the eccentric seat is provided at the shaft end of the second transmission shaft. The utility model can pre-crush and quantitatively feed the recycled sand to be screened by the crushing roller in the quantitative feeding mechanism and the quantitative feeding of the recycled sand by the discharge roller. On the one hand, it can improve the uniformity of the quantitative feeding of the recycled sand, and on the other hand, it can avoid the accumulation and clogging of the screen mesh caused by the large amount of sand added. Then, by utilizing the mechanical vibration screening of the quantitative feeding mechanism, the recycled sand is synchronously mechanically screened.

[0004] The existing technology has the following problems:

[0005] The screening device uses the rotation of the discharge roller to perform intermittent discharging operations, but this method will cause the material on the inside of the quantitative slot to rub against the inner wall of the feed bin when the discharge roller rotates, causing damage to the inner wall of the feed bin. In severe cases, there may be large blocks of material on the inside of the quantitative slot, which may get stuck at the connection between the inner wall of the feed bin and the inner wall of the feed bin, causing the discharge roller to get stuck or causing damage to the discharge roller. Utility Model Content

[0006] The utility model provides a screening device for regenerating machine-made sand from construction waste, so as to solve the problems raised in the above-mentioned background technology.

[0007] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0008] A screening device for construction waste recycling machine sand comprises a cylinder, the outer side of the cylinder is fixedly connected to a support frame, the left side of the cylinder is fixedly connected to a discharge platform, the inner side of the discharge platform near the upper side is movably mounted with a crushing mechanism, the inner side of the discharge platform near the lower side is fixedly sleeved with a discharge mechanism, the inner side of the cylinder is rotatably connected to a screening mechanism, and the lower side of the cylinder near the right side is provided with a discharge port.

[0009] The transmission mechanism is a pair of rotating shafts, each of which is connected to a pair of rotating shafts, and the rotating shafts are connected to the pair of rotating shafts at the front and rear ends of the rotating shafts, respectively. The rotating shafts are symmetrically distributed front and back. The outer sides of the two rotating shafts are movably sleeved with a movable rack, and the inner left and right sides of the two movable racks near the upper side are rotatably connected to a worm gear. The inner side of the worm gear is movably sleeved with the outer side of the rotating rod, and the inner front and rear sides of the two movable racks near the lower side are rotatably connected to a worm gear. The upper side of the worm gear is meshed with the lower side of the worm gear and is connected together, and the first connecting rod is fixedly connected to the front and rear axis centers of the two worm gears, and the four first connecting rods are rotatably connected to the second connecting rod at one end away from the worm gear, and the left end of the second connecting rod is rotatably connected to the inner left side of the discharge platform near the lower side boss.

[0010] Preferably, a receiving plate is fixedly sleeved on the upper middle part of the inner side of the discharge table, and a closing plate is rotatably connected to the lower side of the receiving plate near the left side. The front and rear sides of the two movable frames are rotatably connected to the third connecting rod near the upper side, and the upper end of the third connecting rod is rotatably connected to the lower side of the closing plate near the right side.

[0011] Preferably, the outer walls of the two rotating rods are fixedly connected to positions near the left side with sprockets, and the side surfaces of the sprockets are meshedly connected with chains.

[0012] Preferably, the screening mechanism includes a sieve drum, the outer side of the sieve drum is rotatably connected to the inner side of the cylinder, a gear ring is fixedly connected to the outer wall of the sieve drum near the right side, a second motor is fixedly connected to the right side of the cylinder near the upper side, the output end of the second motor is fixedly connected to a gear, and the lower side of the gear is meshed and connected with the upper side of the gear ring.

[0013] Preferably, a spiral blade is fixedly connected to the inner side of the screen cylinder.

[0014] Due to the adoption of the above technical solution, the present invention has achieved the following technical advancements compared to the prior art:

[0015] The utility model provides a screening device for machine-made sand from the regeneration of construction waste. The device adopts the cooperation of a discharging mechanism, a first motor, a rotating rod, a movable frame, a worm gear, a worm, a first connecting rod, a second connecting rod, a receiving plate, a closing plate, a third connecting rod, a sprocket and a chain. The closing plate is driven by the first motor to rotate back and forth, so that the closing plate intermittently closes the receiving plate, resulting in the closing plate and the receiving plate being jointly controlled to perform intermittent discharging operations. Due to the straight-up and straight-down discharging method of the receiving plate and the closing plate, the influence of the rotation operation on the inner wall of the discharging platform or other components is avoided.

[0016] The utility model provides a screening device for machine-made sand from the regeneration of construction waste. The screening device adopts the cooperation of a screening mechanism, a screen drum, a gear ring, a second motor, a gear and a spiral blade. The screen drum is driven to rotate by the second motor, so that the screen drum performs a flip-screening process on the material inside, avoiding the noise pollution caused by the traditional vibration screening method and the problem of damage to internal components due to vibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 It is a partial cross-sectional three-dimensional structural schematic diagram of the utility model;

[0019] Figure 3 This is a schematic diagram of the three-dimensional structure of the screening mechanism of the present invention;

[0020] Figure 4 It is a partial cross-sectional three-dimensional structural diagram of the discharge mechanism of the present invention;

[0021] Figure 5 This is a partial cross-sectional three-dimensional structural diagram of the first motor part of the present invention.

[0022] In the figure: 1. Cylinder; 2. Support frame; 3. Discharge platform; 4. Crushing mechanism; 5. Discharge mechanism; 51. First motor; 52. Rotating rod; 53. Moving frame; 54. Worm gear; 55. Worm; 56. First connecting rod; 57. Second connecting rod; 58. Receiving plate; 59. Closing plate; 510. Third connecting rod; 511. Sprocket; 512. Chain; 6. Screening mechanism; 61. Screen drum; 62. Gear ring; 63. Second motor; 64. Gear; 65. Spiral blade; 7. Discharge port. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] like Figure 1 、 Figure 2As shown, a screening device for construction waste recycling machine sand comprises a cylinder 1, a support frame 2 is fixedly connected to the outside of the cylinder 1, a discharge platform 3 is fixedly connected to the left side of the cylinder 1, a crushing mechanism 4 is movably installed on the inner side of the discharge platform 3 near the upper side, a discharge mechanism 5 is fixedly sleeved on the inner side of the discharge platform 3 near the lower side, a screening mechanism 6 is rotatably connected to the inner side of the cylinder 1, and a discharge port 7 is opened on the lower side of the cylinder 1 near the right side.

[0025] It should be noted that the cylinder 1 is tilted to the lower right side as a whole, so that the materials at the screening site slide toward the discharge port 7 on their own, and the crushing mechanism 4 is used to crush the materials put in.

[0026] like Figure 2 、 Figure 4 and Figure 5 As shown, the unloading mechanism 5 includes a first motor 51, the right side of the first motor 51 is fixedly connected to the boss on the left side of the unloading platform 3 near the rear side, the output end of the first motor 51 is fixedly connected to a rotating rod 52, the outer wall of the rotating rod 52 is rotatably connected to the inner side of the left and right walls of the unloading platform 3, and the rotating rods 52 are symmetrically distributed front and back. The outer sides of the two rotating rods 52 are movably sleeved with a moving frame 53, and the inner sides of the two moving frames 53 are rotatably connected to the positions near the upper side on both sides. The worm gear 55 is rotatably connected to the worm gear 55. The inner side of the rod 55 is movably connected to the outer side of the rotating rod 52, and the front and rear surfaces of the inner sides of the two movable frames 53 near the lower side are rotatably connected with worm gears 54. The upper side of the worm gear 54 is meshed and connected with the lower side of the worm 55. The front and rear axes of the two worm gears 54 are fixedly connected with first connecting rods 56. The ends of the four first connecting rods 56 away from the worm gears 54 are rotatably connected with second connecting rods 57. The left end of the second connecting rod 57 is rotatably connected to the boss on the inner left side of the discharge table 3 near the lower side.

[0027] It should be noted that the first motor 51 drives the rotating rod 52 located on the rear side to rotate, and when the rotating rod 52 rotates, it drives the worm 55 to rotate, and when the worm 55 rotates, it drives the worm wheel 54 to rotate, and when the worm wheel 54 rotates, it drives the first connecting rod 56 to rotate, and when the first connecting rod 56 rotates, it relies on the second connecting rod 57 to cause the movable frame 53 to perform reciprocating motion in the left and right directions.

[0028] like Figure 2 、 Figure 4 and Figure 5 As shown, a receiving plate 58 is fixedly sleeved on the upper middle part of the inner side of the unloading table 3, and a closing plate 59 is rotatably connected to the lower side of the receiving plate 58 near the left side. The front and rear sides of the two movable frames 53 near the upper side are both rotatably connected to the third connecting rod 510, and the upper end of the third connecting rod 510 is rotatably connected to the lower side of the closing plate 59 near the right side.

[0029] It should be noted that when the movable frame 53 moves, it drives the third connecting rod 510 to move. When the third connecting rod 510 moves, its upper end pulls the right side of the sealing plate 59, causing the sealing plate 59 to rotate, so that the sealing plate 59 rotates back and forth within a certain range.

[0030] like Figure 4 、 Figure 5 As shown, the outer walls of the two rotating rods 52 are fixedly connected to positions near the left side with sprockets 511 , and the side surfaces of the sprockets 511 are meshedly connected with chains 512 .

[0031] It should be noted that when the rotating rod 52 at the rear side rotates, it drives the sprocket 511 at the rear side to rotate. When the sprocket 511 rotates, it relies on the chain 512, causing the two rotating rods 52 to rotate synchronously in the same direction, so that the front and rear sides of the sealing plate 59 are balanced in force.

[0032] like Figure 2 、 Figure 3 As shown, the screening mechanism 6 includes a sieve drum 61, the outer side of the sieve drum 61 is rotatably connected to the inner side of the cylinder 1, a gear ring 62 is fixedly connected to the outer wall of the sieve drum 61 near the right side, a second motor 63 is fixedly connected to the right side of the cylinder 1 near the upper side, and the output end of the second motor 63 is fixedly connected to a gear 64, and the lower side of the gear 64 is meshed and connected with the upper side of the gear ring 62.

[0033] It should be noted that the second motor 63 drives the gear 64 to rotate, and when the gear 64 rotates, it drives the ring gear 62 to rotate, and when the ring gear 62 rotates, it drives the screen drum 61 to rotate, and when the screen drum 61 rotates, the material inside the screen drum 61 is turned over and screened.

[0034] like Figure 3 As shown, a spiral blade 65 is fixedly connected to the inner side of the screen drum 61 .

[0035] It should be noted that when the screen drum 61 rotates, the spiral blade 65 is driven to rotate. The arrangement of the spiral blade 65 causes the material inside the screen drum 61 to be transported to the right side when the spiral blade 65 rotates.

[0036] The working principle of the present invention is as follows: first, the first motor 51 drives the rotating rod 52 located at the rear side to rotate. When the rotating rod 52 rotates, it drives the worm 55 to rotate. When the worm 55 rotates, it drives the worm gear 54 to rotate. When the worm gear 54 rotates, it drives the first connecting rod 56 to rotate. When the first connecting rod 56 rotates, it relies on the second connecting rod 57 to cause the movable frame 53 to reciprocate in the left and right directions. When the movable frame 53 moves, it drives the third connecting rod 510 to move. When the third connecting rod 510 moves, its upper end pulls the right side of the sealing plate 59, causing the sealing plate 59 to rotate, so that the sealing plate 59 reciprocates within a certain range. When the rotating rod 52 located at the rear side rotates, it drives the sprocket 511 located at the rear side to rotate. When the sprocket 511 rotates, it relies on the chain 512, causing the two rotating rods 52 to rotate synchronously in the same direction, so that the front and rear sides of the sealing plate 59 are subjected to balanced force. The sealing plate 59 is driven to rotate back and forth by the first motor 51, so that the sealing plate 59 is against the bearing The connecting plate 58 is intermittently closed, so that the sealing plate 59 and the receiving plate 58 are jointly controlled to perform intermittent discharging operations. Since the receiving plate 58 and the sealing plate 59 are used for discharging in a straight-up and straight-down manner, the influence of the rotation operation on the inner wall or other components of the discharging platform 3 is avoided. Finally, the second motor 63 drives the gear 64 to rotate. When the gear 64 rotates, it drives the ring gear 62 to rotate. When the ring gear 62 rotates, it drives the screen drum 61 to rotate. When the screen drum 61 rotates, the material inside the screen drum 61 is flipped and screened. When the screen drum 61 rotates, it drives the spiral blade 65 to rotate. The setting of the spiral blade 65 causes the spiral blade 65 to transport the material inside the screen drum 61 to the right when it rotates. The screen drum 61 is driven to rotate by the second motor 63, and the screen drum 61 is flipped and screened for the internal material, thereby avoiding the noise pollution caused by the traditional vibration screening method and the problem of damage to internal components due to vibration.

[0037] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A screening device for producing sand from construction waste regeneration, comprising a cylinder (1), characterized in that: The outer side of the cylinder (1) is fixedly connected to a support frame (2), the left side of the cylinder (1) is fixedly connected to a discharge platform (3), the inner side of the discharge platform (3) is movably mounted with a crushing mechanism (4) near the upper side, the inner side of the discharge platform (3) is fixedly sleeved with a discharge mechanism (5) near the lower side, the inner side of the cylinder (1) is rotatably connected to a screening mechanism (6), and a discharge port (7) is provided at the lower side of the cylinder (1) near the right side.

2. The screening device for construction waste regeneration and machine-made sand according to claim 1, characterized in that: The discharge mechanism (5) comprises a first motor (51), the right side of the first motor (51) is fixedly connected to the boss on the left side of the discharge platform (3) near the rear side, the output end of the first motor (51) is fixedly connected to a rotating rod (52), the outer wall of the rotating rod (52) is rotatably connected to the inner sides of the left and right walls of the discharge platform (3), and two rotating rods (52) are symmetrically distributed front and back. The outer sides of the two rotating rods (52) are movably sleeved with a moving frame (53), and the inner sides of the two moving frames (53) are rotatably connected to the positions near the upper sides on the left and right sides. The worm (55) is rotatably connected to the worm (55). The inner side of the rod (55) is movably sleeved on the outer side of the rotating rod (52), and the inner front and rear surfaces of the two movable frames (53) are rotatably connected to the positions near the lower side. The upper side of the worm wheel (54) is meshed and connected with the lower side of the worm (55). The front and rear axis centers of the two worm wheels (54) are fixedly connected to the first connecting rod (56). The ends of the four first connecting rods (56) away from the worm wheel (54) are rotatably connected to the second connecting rod (57). The left end of the second connecting rod (57) is rotatably connected to the boss on the inner left side of the discharge platform (3) near the lower side.

3. The screening device for construction waste regeneration and sand production according to claim 2, characterized in that: A receiving plate (58) is fixedly sleeved on the upper middle part of the inner side of the discharge platform (3), and a closing plate (59) is rotatably connected to the lower side of the receiving plate (58) near the left side. The front and rear sides of the two movable frames (53) are both rotatably connected to the third connecting rod (510) near the upper side, and the upper end of the third connecting rod (510) is rotatably connected to the lower side of the closing plate (59) near the right side.

4. The screening device for construction waste regeneration and machine-made sand according to claim 2, characterized in that: The outer walls of the two rotating rods (52) are fixedly connected to positions near the left side with sprockets (511), and the side surfaces of the sprockets (511) are meshedly connected with chains (512).

5. The screening device for construction waste regeneration and machine-made sand according to claim 1, characterized in that: The screening mechanism (6) comprises a screen drum (61), the outer side of the screen drum (61) is rotatably connected to the inner side of the cylinder (1), a gear ring (62) is fixedly connected to the outer wall of the screen drum (61) near the right side, a second motor (63) is fixedly connected to the right side of the cylinder (1) near the upper side, and a gear (64) is fixedly connected to the output end of the second motor (63), and the lower side of the gear (64) is meshed and connected with the upper side of the gear ring (62).

6. The screening device for construction waste regeneration and machine-made sand according to claim 5, characterized in that: The inner side of the screen cylinder (61) is fixedly connected with a spiral blade (65).

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